return - Page 341 - Developer IT

Adjusting server-side tickrate dynamically

- by Stuart Blackler

I know nothing of game development/this site, so I apologise if this is completely foobar. Today I experimented with building a small game loop for a network game (think MW3, CSGO etc). I was wondering why they do not build in automatic rate adjustment based on server performance? Would it affect the client that much if the client knew this frame is based on this tickrate? Has anyone attempted this before? Here is what my noobish C++ brain came up with earlier. It will improve the tickrate if it has been stable for x ticks. If it "lags", the tickrate will be reduced down by y amount: // GameEngine.cpp : Defines the entry point for the console application. // #ifdef WIN32 #include <Windows.h> #else #include <sys/time.h> #include <ctime> #endif #include<iostream> #include <dos.h> #include "stdafx.h" using namespace std; UINT64 GetTimeInMs() { #ifdef WIN32 /* Windows */ FILETIME ft; LARGE_INTEGER li; /* Get the amount of 100 nano seconds intervals elapsed since January 1, 1601 (UTC) and copy it * to a LARGE_INTEGER structure. */ GetSystemTimeAsFileTime(&ft); li.LowPart = ft.dwLowDateTime; li.HighPart = ft.dwHighDateTime; UINT64 ret = li.QuadPart; ret -= 116444736000000000LL; /* Convert from file time to UNIX epoch time. */ ret /= 10000; /* From 100 nano seconds (10^-7) to 1 millisecond (10^-3) intervals */ return ret; #else /* Linux */ struct timeval tv; gettimeofday(&tv, NULL); uint64 ret = tv.tv_usec; /* Convert from micro seconds (10^-6) to milliseconds (10^-3) */ ret /= 1000; /* Adds the seconds (10^0) after converting them to milliseconds (10^-3) */ ret += (tv.tv_sec * 1000); return ret; #endif } int _tmain(int argc, _TCHAR* argv[]) { int sv_tickrate_max = 1000; // The maximum amount of ticks per second int sv_tickrate_min = 100; // The minimum amount of ticks per second int sv_tickrate_adjust = 10; // How much to de/increment the tickrate by int sv_tickrate_stable_before_increment = 1000; // How many stable ticks before we increase the tickrate again int sys_tickrate_current = sv_tickrate_max; // Always start at the highest possible tickrate for the best performance int counter_stable_ticks = 0; // How many ticks we have not lagged for UINT64 __startTime = GetTimeInMs(); int ticks = 100000; while(ticks > 0) { int maxTimeInMs = 1000 / sys_tickrate_current; UINT64 _startTime = GetTimeInMs(); // Long code here... cout << "."; UINT64 _timeTaken = GetTimeInMs() - _startTime; if(_timeTaken < maxTimeInMs) { Sleep(maxTimeInMs - _timeTaken); counter_stable_ticks++; if(counter_stable_ticks >= sv_tickrate_stable_before_increment) { // reset the stable # ticks counter counter_stable_ticks = 0; // make sure that we don't go over the maximum tickrate if(sys_tickrate_current + sv_tickrate_adjust <= sv_tickrate_max) { sys_tickrate_current += sv_tickrate_adjust; // let me know in console #DEBUG cout << endl << "Improving tickrate. New tickrate: " << sys_tickrate_current << endl; } } } else if(_timeTaken > maxTimeInMs) { cout << endl; if((sys_tickrate_current - sv_tickrate_adjust) > sv_tickrate_min) { sys_tickrate_current -= sv_tickrate_adjust; } else { if(sys_tickrate_current == sv_tickrate_min) { cout << "Please reduce sv_tickrate_min..." << endl; } else{ sys_tickrate_current = sv_tickrate_min; } } // let me know in console #DEBUG cout << "The server has lag. Reduced tickrate to: " << sys_tickrate_current << endl; } ticks--; } UINT64 __timeTaken = GetTimeInMs() - __startTime; cout << endl << endl << "Total time in ms: " << __timeTaken; cout << endl << "Ending tickrate: " << sys_tickrate_current; char test; cin >> test; return 0; }

Read the article

Contricted A* problem

- by Ragekit

I've got a little problem with an A* algorithm that I need to constrict a little bit. Basically : I use an A* to find the shortest path between 2 randomly placed room in 3D space, and then build a corridor between them. The problem I found is that sometimes it makes chimney like corridors that are not ideal, so I constrict the A* so that if the last movement was up or down, you go sideways. Everything is fine, but in some corner cases, it fails to find a path (when there is obviously one). Like here between the blue and red dot : (i'm in unity btw, but i don't think it matters) Here is the code of the actual A* (a bit long, and some redundency) while(current != goal) { //add stair up / stair down foreach(Node<GridUnit> test in current.Neighbors) { if(!test.Data.empty && test != goal) continue; //bug at arrival; if(test == goal && penul !=null) { Vector3 currentDiff = current.Data.bounds.center - test.Data.bounds.center; if(!Mathf.Approximately(currentDiff.y,0)) { //wanna drop on the last if(!coplanar(test.Data.bounds.center,current.Data.bounds.center,current.Data.parentUnit.bounds.center,to.Data.bounds.center)) { continue; } else { if(Mathf.Approximately(to.Data.bounds.center.x, current.Data.parentUnit.bounds.center.x) && Mathf.Approximately(to.Data.bounds.center.z, current.Data.parentUnit.bounds.center.z)) { continue; } } } } if(current.Data.parentUnit != null) { Vector3 previousDiff = current.Data.parentUnit.bounds.center - current.Data.bounds.center; Vector3 currentDiff = current.Data.bounds.center - test.Data.bounds.center; if(!Mathf.Approximately(previousDiff.y,0)) { if(!Mathf.Approximately(currentDiff.y,0)) { //you wanna drop now : continue; } if(current.Data.parentUnit.parentUnit != null) { if(!coplanar(test.Data.bounds.center,current.Data.bounds.center,current.Data.parentUnit.bounds.center,current.Data.parentUnit.parentUnit.bounds.center)) { continue; }else { if(Mathf.Approximately(test.Data.bounds.center.x, current.Data.parentUnit.parentUnit.bounds.center.x) && Mathf.Approximately(test.Data.bounds.center.z, current.Data.parentUnit.parentUnit.bounds.center.z)) { continue; } } } } } g = current.Data.g + HEURISTIC(current.Data,test.Data); h = HEURISTIC(test.Data,goal.Data); f = g + h; if(open.Contains(test) || closed.Contains(test)) { if(test.Data.f > f) { //found a shorter path going passing through that point test.Data.f = f; test.Data.g = g; test.Data.h = h; test.Data.parentUnit = current.Data; } } else { //jamais rencontré test.Data.f = f; test.Data.h = h; test.Data.g = g; test.Data.parentUnit = current.Data; open.Add(test); } } closed.Add (current); if(open.Count == 0) { Debug.Log("nothingfound"); //nothing more to test no path found, stay to from; List<GridUnit> r = new List<GridUnit>(); r.Add(from.Data); return r; } //sort open from small to biggest travel cost open.Sort(delegate(Node<GridUnit> x, Node<GridUnit> y) { return (int)(x.Data.f-y.Data.f); }); //get the smallest travel cost node; Node<GridUnit> smallest = open[0]; current = smallest; open.RemoveAt(0); } //build the path going backward; List<GridUnit> ret = new List<GridUnit>(); if(penul != null) { ret.Insert(0,to.Data); } GridUnit cur = goal.Data; ret.Insert(0,cur); do{ cur = cur.parentUnit; ret.Insert(0,cur); } while(cur != from.Data); return ret; You see at the start of the foreach i constrict the A* like i said. If you have any insight it would be cool. Thanks

Read the article

Draw Bug 2D player Camera

- by RedShft

I have just implemented a 2D player camera for my game, everything works properly except the player on the screen jitters when it moves between tiles. What I mean by jitter, is that if the player is moving the camera updates the tileset to be drawn and if the player steps to the right, the camera snaps that way. The movement is not smooth. I'm guessing this is occurring because of how I implemented the function to calculate the current viewable area or how my draw function works. I'm not entirely sure how to fix this. This camera system was entirely of my own creation and a first attempt at that, so it's very possible this is not a great way of doing things. My camera class, pulls information from the current tileset and calculates the viewable area. Right now I am targettng a resolution of 800 by 600. So I try to fit the appropriate amount of tiles for that resolution. My camera class, after calculating the current viewable tileset relative to the players location, returns a slice of the original tileset to be drawn. This tileset slice is updated every frame according to the players position. This slice is then passed to the map class, which draws the tile on screen. //Map Draw Function //This draw function currently matches the GID of the tile to it's location on the //PNG file of the tileset and then draws this portion on the screen void Draw(SDL_Surface* background, int[] _tileSet) { enforce( tilesetImage != null, "Tileset is null!"); enforce( background != null, "BackGround is null!"); int i = 0; int j = 0; SDL_Rect DestR, SrcR; SrcR.x = 0; SrcR.y = 0; SrcR.h = 32; SrcR.w = 32; foreach(tile; _tileSet) { //This code is matching the current tiles ID to the tileset image SrcR.x = cast(short)(tileWidth * (tile >= 11 ? (tile - ((tile / 10) * 10) - 1) : tile - 1)); SrcR.y = cast(short)(tileHeight * (tile > 10 ? (tile / 10) : 0)); //Applying the tile to the surface SDL_BlitSurface( tilesetImage, &SrcR, background, &DestR ); //this keeps track of what column/row we are on i++; if ( i == mapWidth ) { i = 0; j++; } DestR.x = cast(short)(i * tileWidth); DestR.y = cast(short)(j * tileHeight); } } //Camera Class class Camera { private: //A rectangle representing the view area SDL_Rect viewArea; //In number of tiles int viewAreaWidth; int viewAreaHeight; //This is the x and y coordinate of the camera in MAP SPACE IN PIXELS vect2 cameraCoordinates; //The player location in map space IN PIXELS vect2 playerLocation; //This is the players location in screen space; vect2 playerScreenLoc; int playerTileCol; int playerTileRow; int cameraTileCol; int cameraTileRow; //The map is stored in a single array with the tile ids //this corresponds to the index of the starting and ending tile int cameraStartTile, cameraEndTile; //This is a slice of the current tile set int[] tileSetCopy; int mapWidth; int mapHeight; int tileWidth; int tileHeight; public: this() { this.viewAreaWidth = 25; this.viewAreaHeight = 19; this.cameraCoordinates = vect2(0, 0); this.playerLocation = vect2(0, 0); this.viewArea = SDL_Rect (0, 0, 0, 0); this.tileWidth = 32; this.tileHeight = 32; } void Init(vect2 playerPosition, ref int[] tileSet, int mapWidth, int mapHeight ) { playerLocation = playerPosition; this.mapWidth = mapWidth; this.mapHeight = mapHeight; CalculateCurrentCameraPosition( tileSet, playerPosition ); //writeln( "Tile Set Copy: ", tileSetCopy ); //writeln( "Orginal Tile Set: ", tileSet ); } void CalculateCurrentCameraPosition( ref int[] tileSet, vect2 playerPosition ) { playerLocation = playerPosition; playerTileCol = cast(int)((playerLocation.x / tileWidth) + 1); playerTileRow = cast(int)((playerLocation.y / tileHeight) + 1); //writeln( "Player Tile (Column, Row): ","(", playerTileCol, ", ", playerTileRow, ")"); cameraTileCol = playerTileCol - (viewAreaWidth / 2); cameraTileRow = playerTileRow - (viewAreaHeight / 2); CameraMapBoundsCheck(); //writeln( "Camera Tile Start (Column, Row): ","(", cameraTileCol, ", ", cameraTileRow, ")"); cameraStartTile = ( (cameraTileRow - 1) * mapWidth ) + cameraTileCol - 1; //writeln( "Camera Start Tile: ", cameraStartTile ); cameraEndTile = cameraStartTile + ( viewAreaWidth * viewAreaHeight ) * 2; //writeln( "Camera End Tile: ", cameraEndTile ); tileSetCopy = tileSet[cameraStartTile..cameraEndTile]; } vect2 CalculatePlayerScreenLocation() { cameraCoordinates.x = cast(float)(cameraTileCol * tileWidth); cameraCoordinates.y = cast(float)(cameraTileRow * tileHeight); playerScreenLoc = playerLocation - cameraCoordinates + vect2(32, 32);; //writeln( "Camera Coordinates: ", cameraCoordinates ); //writeln( "Player Location (Map Space): ", playerLocation ); //writeln( "Player Location (Screen Space): ", playerScreenLoc ); return playerScreenLoc; } void CameraMapBoundsCheck() { if( cameraTileCol < 1 ) cameraTileCol = 1; if( cameraTileRow < 1 ) cameraTileRow = 1; if( cameraTileCol + 24 > mapWidth ) cameraTileCol = mapWidth - 24; if( cameraTileRow + 19 > mapHeight ) cameraTileRow = mapHeight - 19; } ref int[] GetTileSet() { return tileSetCopy; } int GetViewWidth() { return viewAreaWidth; } }

Read the article

Navigation in a #WP7 application with MVVM Light

- by Laurent Bugnion

In MVVM applications, it can be a bit of a challenge to send instructions to the view (for example a page) from a viewmodel. Thankfully, we have good tools at our disposal to help with that. In his excellent series “MVVM Light Toolkit soup to nuts”, Jesse Liberty proposes one approach using the MVVM Light messaging infrastructure. While this works fine, I would like to show here another approach using what I call a “view service”, i.e. an abstracted service that is invoked from the viewmodel, and implemented on the view. Multiple kinds of view services In fact, I use view services quite often, and even started standardizing them for the Windows Phone 7 applications I work on. If there is interest, I will be happy to show other such view services, for example Animation services, responsible to start/stop animations on the view. Dialog service, in charge of displaying messages to the user and gathering feedback. Navigation service, in charge of navigating to a given page directly from the viewmodel. In this article, I will concentrate on the navigation service. The INavigationService interface In most WP7 apps, the navigation service is used in quite a straightforward way. We want to: Navigate to a given URI. Go back. Be notified when a navigation is taking place, and be able to cancel. The INavigationService interface is quite simple indeed: public interface INavigationService { event NavigatingCancelEventHandler Navigating; void NavigateTo(Uri pageUri); void GoBack(); } Obviously, this interface can be extended if necessary, but in most of the apps I worked on, I found that this covers my needs. The NavigationService class It is possible to nicely pack the navigation service into its own class. To do this, we need to remember that all the PhoneApplicationPage instances use the same instance of the navigation service, exposed through their NavigationService property. In fact, in a WP7 application, it is the main frame (RootFrame, of type PhoneApplicationFrame) that is responsible for this task. So, our implementation of the NavigationService class can leverage this. First the class will grab the PhoneApplicationFrame and store a reference to it. Also, it registers a handler for the Navigating event, and forwards the event to the listening viewmodels (if any). Then, the NavigateTo and the GoBack methods are implemented. They are quite simple, because they are in fact just a gateway to the PhoneApplicationFrame. The whole class is as follows: public class NavigationService : INavigationService { private PhoneApplicationFrame _mainFrame; public event NavigatingCancelEventHandler Navigating; public void NavigateTo(Uri pageUri) { if (EnsureMainFrame()) { _mainFrame.Navigate(pageUri); } } public void GoBack() { if (EnsureMainFrame() && _mainFrame.CanGoBack) { _mainFrame.GoBack(); } } private bool EnsureMainFrame() { if (_mainFrame != null) { return true; } _mainFrame = Application.Current.RootVisual as PhoneApplicationFrame; if (_mainFrame != null) { // Could be null if the app runs inside a design tool _mainFrame.Navigating += (s, e) => { if (Navigating != null) { Navigating(s, e); } }; return true; } return false; } } Exposing URIs I find that it is a good practice to expose each page’s URI as a constant. In MVVM Light applications, a good place to do that is the ViewModelLocator, which already acts like a central point of setup for the views and their viewmodels. Note that in some cases, it is necessary to expose the URL as a string, for instance when a query string needs to be passed to the view. So for example we could have: public static readonly Uri MainPageUri = new Uri("/MainPage.xaml", UriKind.Relative); public const string AnotherPageUrl = "/AnotherPage.xaml?param1={0}&param2={1}"; Creating and using the NavigationService Normally, we only need one instance of the NavigationService class. In cases where you use an IOC container, it is easy to simply register a singleton instance. For example, I am using a modified version of a super simple IOC container, and so I can register the navigation service as follows: SimpleIoc.Register<INavigationService, NavigationService>(); Then, it can be resolved where needed with: SimpleIoc.Resolve<INavigationService>(); Or (more frequently), I simply declare a parameter on the viewmodel constructor of type INavigationService and let the IOC container do its magic and inject the instance of the NavigationService when the viewmodel is created. On supported platforms (for example Silverlight 4), it is also possible to use MEF. Or, of course, we can simply instantiate the NavigationService in the ViewModelLocator, and pass this instance as a parameter of the viewmodels’ constructor, injected as a property, etc… Once the instance has been passed to the viewmodel, it can be used, for example with: NavigationService.NavigateTo(ViewModelLocator.ComparisonPageUri); Testing Thanks to the INavigationService interface, navigation can be mocked and tested when the viewmodel is put under unit test. Simply implement and inject a mock class, and assert that the methods are called as they should by the viewmodel. Conclusion As usual, there are multiple ways to code a solution answering your needs. I find that view services are a really neat way to delegate view-specific responsibilities such as animation, dialogs and of course navigation to other classes through an abstracted interface. In some cases, such as the NavigationService class exposed here, it is even possible to standardize the implementation and pack it in a class library for reuse. I hope that this sample is useful! Happy coding. Laurent Laurent Bugnion (GalaSoft) Subscribe | Twitter | Facebook | Flickr | LinkedIn

Read the article

Access Control Service V2 and Facebook Integration

- by Your DisplayName here!

I haven’t been blogging about ACS2 in the past because it was not released and I was kinda busy with other stuff. Needless to say I spent quite some time with ACS2 already (both in customer situations as well as in the classroom and at conferences). ACS2 rocks! It’s IMHO the most interesting and useful (and most unique) part of the whole Azure offering! For my talk at VSLive yesterday, I played a little with the Facebook integration. See Steve’s post on the general setup. One claim that you get back from Facebook is an access token. This token can be used to directly talk to Facebook and query additional properties about the user. Which properties you have access to depends on which authorization your Facebook app requests. You can specify this in the identity provider registration page for Facebook in ACS2. In my example I added access to the home town property of the user. Once you have the access token from ACS you can use e.g. the Facebook SDK from Codeplex (also available via NuGet) to talk to the Facebook API. In my sample I used the WIF ClaimsAuthenticationManager to add the additional home town claim. This is not necessarily how you would do it in a “real” app. Depends ;) The code looks like this (sample code!): public class ClaimsTransformer : ClaimsAuthenticationManager { public override IClaimsPrincipal Authenticate( string resourceName, IClaimsPrincipal incomingPrincipal) { if (!incomingPrincipal.Identity.IsAuthenticated) { return base.Authenticate(resourceName, incomingPrincipal); } string accessToken; if (incomingPrincipal.TryGetClaimValue( "http://www.facebook.com/claims/AccessToken", out accessToken)) { try { var home = GetFacebookHometown(accessToken); if (!string.IsNullOrWhiteSpace(home)) { incomingPrincipal.Identities[0].Claims.Add( new Claim("http://www.facebook.com/claims/HomeTown", home)); } } catch { } } return incomingPrincipal; } private string GetFacebookHometown(string token) { var client = new FacebookClient(token); dynamic parameters = new ExpandoObject(); parameters.fields = "hometown"; dynamic result = client.Get("me", parameters); return result.hometown.name; } }

Read the article

Mousin' down the PathListBox

- by T

While modifying the standard media player with a new look and feel for Ineta Live I saw a unique opportunity to use their logo with a dotted I with and attached arc as the scrub control. So I created a PathListBox that I wanted an object to follow when a user did a click and drag action. Below is how I solved the problem. Please let me know if you have improvements or know of a completely different way. I am always eager to learn. First, I created a path using the pen tool in Expression Blend (see the yellow line in image below). Then I right clicked that path and chose [Path] --> [Make Layout Path]. That created a new PathListBox. Then I chose the object I want to move down the new PathListBox and Placed it as a child in the Objects and Timeline window (see image below). If the child object (the thing the user will click and drag) is XAML, it will move much smoother than images. Just as another side note, I wanted there to be no highlight when the user selects the “ball” to drag and drop. This is done by editing the ItemContainerStyle under Additional Templates on the PathListBox. Post a question if you need help on this and I will expand my explanation. Here is a pic of the object and the path I wanted it to follow. I gave the path a yellow solid brush here so you could see it but when I lay this over another object, I will make the path transparent. To animate this object down the path, the trick is to animate the Start number for the LayoutPath. Not the StartItemIndex, the Start above Span. In order to enable animation when a user clicks and drags, I put in the following code snippets in the code behind. the DependencyProperties are not necessary for the Drag control. namespace InetaPlayer { public partial class PositionControl : UserControl { private bool _mouseDown; private double _maxPlayTime; public PositionControl() { // Required to initialize variables InitializeComponent(); //mouse events for scrub control positionThumb.MouseLeftButtonDown += new MouseButtonEventHandler(ValueThumb_MouseLeftButtonDown); positionThumb.MouseLeftButtonUp += new MouseButtonEventHandler(ValueThumb_MouseLeftButtonUp); positionThumb.MouseMove += new MouseEventHandler(ValueThumb_MouseMove); positionThumb.LostMouseCapture += new MouseEventHandler(ValueThumb_LostMouseCapture); } // exposed for binding to real slider using a DependencyProperty enables animation, styling, binding, etc.... public double MaxPlayTime { get { return (double)GetValue(MaxPlayTimeProperty); } set { SetValue(MaxPlayTimeProperty, value); } } public static readonly DependencyProperty MaxPlayTimeProperty = DependencyProperty.Register("MaxPlayTime", typeof(double), typeof(PositionControl), null); // exposed for binding to real slider using a DependencyProperty enables animation, styling, binding, etc.... public double CurrSliderValue { get { return (double)GetValue(CurrSliderValueProperty); } set { SetValue(CurrSliderValueProperty, value); } } public static readonly DependencyProperty CurrSliderValueProperty = DependencyProperty.Register("CurrSliderValue", typeof(double), typeof(PositionControl), new PropertyMetadata(0.0, OnCurrSliderValuePropertyChanged)); private static void OnCurrSliderValuePropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e) { PositionControl control = d as PositionControl; control.OnCurrSliderValueChanged((double)e.OldValue, (double)e.NewValue); } private void OnCurrSliderValueChanged(double oldValue, double newValue) { _maxPlayTime = (double) GetValue(MaxPlayTimeProperty); if (!_mouseDown) if (_maxPlayTime!=0) sliderPathListBox.LayoutPaths[0].Start = newValue / _maxPlayTime; else sliderPathListBox.LayoutPaths[0].Start = 0; } //mouse control void ValueThumb_MouseMove(object sender, MouseEventArgs e) { if (!_mouseDown) return; //get the offset of how far the drag has been //direction is handled automatically (offset will be negative for left move and positive for right move) Point mouseOff = e.GetPosition(positionThumb); //Divide the offset by 1000 for a smooth transition sliderPathListBox.LayoutPaths[0].Start +=mouseOff.X/1000; _maxPlayTime = (double)GetValue(MaxPlayTimeProperty); SetValue(CurrSliderValueProperty ,sliderPathListBox.LayoutPaths[0].Start*_maxPlayTime); } void ValueThumb_MouseLeftButtonUp(object sender, MouseButtonEventArgs e) { _mouseDown = false; } void ValueThumb_LostMouseCapture(object sender, MouseEventArgs e) { _mouseDown = false; } void ValueThumb_MouseLeftButtonDown(object sender, MouseButtonEventArgs e) { _mouseDown = true; ((UIElement)positionThumb).CaptureMouse(); } } } I made this into a user control and exposed a couple of DependencyProperties in order to bind it to a standard Slider in the overall project. This control is embedded into the standard Expression media player template and is used to replace the standard scrub bar. When the player goes live, I will put a link here.

Read the article

How to Point sprite's direction towards Mouse or an Object [duplicate]

- by Irfan Dahir

This question already has an answer here: Rotating To Face a Point 1 answer I need some help with rotating sprites towards the mouse. I'm currently using the library allegro 5.XX. The rotation of the sprite works but it's constantly inaccurate. It's always a few angles off from the mouse to the left. Can anyone please help me with this? Thank you. P.S I got help with the rotating function from here: http://www.gamefromscratch.com/post/2012/11/18/GameDev-math-recipes-Rotating-to-face-a-point.aspx Although it's by javascript, the maths function is the same. And also, by placing: if(angle < 0) { angle = 360 - (-angle); } doesn't fix it. The Code: #include <allegro5\allegro.h> #include <allegro5\allegro_image.h> #include "math.h" int main(void) { int width = 640; int height = 480; bool exit = false; int shipW = 0; int shipH = 0; ALLEGRO_DISPLAY *display = NULL; ALLEGRO_EVENT_QUEUE *event_queue = NULL; ALLEGRO_BITMAP *ship = NULL; if(!al_init()) return -1; display = al_create_display(width, height); if(!display) return -1; al_install_keyboard(); al_install_mouse(); al_init_image_addon(); al_set_new_bitmap_flags(ALLEGRO_MIN_LINEAR | ALLEGRO_MAG_LINEAR); //smoother rotate ship = al_load_bitmap("ship.bmp"); shipH = al_get_bitmap_height(ship); shipW = al_get_bitmap_width(ship); int shipx = width/2 - shipW/2; int shipy = height/2 - shipH/2; int mx = width/2; int my = height/2; al_set_mouse_xy(display, mx, my); event_queue = al_create_event_queue(); al_register_event_source(event_queue, al_get_mouse_event_source()); al_register_event_source(event_queue, al_get_keyboard_event_source()); //al_hide_mouse_cursor(display); float angle; while(!exit) { ALLEGRO_EVENT ev; al_wait_for_event(event_queue, &ev); if(ev.type == ALLEGRO_EVENT_KEY_UP) { switch(ev.keyboard.keycode) { case ALLEGRO_KEY_ESCAPE: exit = true; break; /*case ALLEGRO_KEY_LEFT: degree -= 10; break; case ALLEGRO_KEY_RIGHT: degree += 10; break;*/ case ALLEGRO_KEY_W: shipy -=10; break; case ALLEGRO_KEY_S: shipy +=10; break; case ALLEGRO_KEY_A: shipx -=10; break; case ALLEGRO_KEY_D: shipx += 10; break; } }else if(ev.type == ALLEGRO_EVENT_MOUSE_AXES) { mx = ev.mouse.x; my = ev.mouse.y; angle = atan2(my - shipy, mx - shipx); } // al_draw_bitmap(ship,shipx, shipy, 0); //al_draw_rotated_bitmap(ship, shipW/2, shipH/2, shipx, shipy, degree * 3.142/180,0); al_draw_rotated_bitmap(ship, shipW/2, shipH/2, shipx, shipy,angle, 0); //I directly placed the angle because the allegro library calculates radians, and if i multiplied it by 180/3. 142 the rotation would go hawire, not would, it actually did. al_flip_display(); al_clear_to_color(al_map_rgb(0,0,0)); } al_destroy_bitmap(ship); al_destroy_event_queue(event_queue); al_destroy_display(display); return 0; } EDIT: This was marked duplicate by a moderator. I'd like to say that this isn't the same as that. I'm a total beginner at game programming, I had a view at that other topic and I had difficulty understanding it. Please understand this, thank you. :/ Also, while I was making a print of what the angle is I got this... Here is a screenshot:http://img34.imageshack.us/img34/7396/fzuq.jpg Which is weird because aren't angles supposed to be 360 degrees only?

Read the article

Encrypt images before uploading to Dropbox [migrated]

- by Cherry

I want to encrypt a file first before the file will be uploaded to the dropbox. So i have implement the encryption inside the uploading of the codes. However, there is an error after i integrate the codes together. Where did my mistake go wrong? Error at putFileOverwriteRequest and it says The method putFileOverwriteRequest(String, InputStream, long, ProgressListener) in the type DropboxAPI is not applicable for the arguments (String, FileOutputStream, long, new ProgressListener(){}) Another problem is that this FileOutputStream fis = new FileOutputStream(new File("dont know what to put in this field")); i do not know where to put the file so that after i read the file, it will call the path and then upload to the Dropbox. Anyone is kind to help me in this? As time is running out for me and i still cant solve the problem. Thank you in advance. The full code is as below. public class UploadPicture extends AsyncTask<Void, Long, Boolean> { private DropboxAPI<?> mApi; private String mPath; private File mFile; private long mFileLen; private UploadRequest mRequest; private Context mContext; private final ProgressDialog mDialog; private String mErrorMsg; public UploadPicture(Context context, DropboxAPI<?> api, String dropboxPath, File file) { // We set the context this way so we don't accidentally leak activities mContext = context.getApplicationContext(); mFileLen = file.length(); mApi = api; mPath = dropboxPath; mFile = file; mDialog = new ProgressDialog(context); mDialog.setMax(100); mDialog.setMessage("Uploading " + file.getName()); mDialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL); mDialog.setProgress(0); mDialog.setButton("Cancel", new OnClickListener() { public void onClick(DialogInterface dialog, int which) { // This will cancel the putFile operation mRequest.abort(); } }); mDialog.show(); } @Override protected Boolean doInBackground(Void... params) { try { KeyGenerator keygen = KeyGenerator.getInstance("DES"); SecretKey key = keygen.generateKey(); //generate key //encrypt file here first byte[] plainData; byte[] encryptedData; Cipher cipher = Cipher.getInstance("DES/ECB/PKCS5Padding"); cipher.init(Cipher.ENCRYPT_MODE, key); //File f = new File(mFile); //read file FileInputStream in = new FileInputStream(mFile); //obtains input bytes from a file plainData = new byte[(int)mFile.length()]; in.read(plainData); //Read bytes of data into an array of bytes encryptedData = cipher.doFinal(plainData); //encrypt data FileOutputStream fis = new FileOutputStream(new File("dont know what to put in this field")); //upload to a path first then call the path so that it can be uploaded up to the dropbox //save encrypted file to dropbox // By creating a request, we get a handle to the putFile operation, // so we can cancel it later if we want to //FileInputStream fis = new FileInputStream(mFile); String path = mPath + mFile.getName(); mRequest = mApi.putFileOverwriteRequest(path, fis, mFile.length(), new ProgressListener() { @Override public long progressInterval() { // Update the progress bar every half-second or so return 500; } @Override public void onProgress(long bytes, long total) { publishProgress(bytes); } }); if (mRequest != null) { mRequest.upload(); return true; } } catch (DropboxUnlinkedException e) { // This session wasn't authenticated properly or user unlinked mErrorMsg = "This app wasn't authenticated properly."; } catch (DropboxFileSizeException e) { // File size too big to upload via the API mErrorMsg = "This file is too big to upload"; } catch (DropboxPartialFileException e) { // We canceled the operation mErrorMsg = "Upload canceled"; } catch (DropboxServerException e) { // Server-side exception. These are examples of what could happen, // but we don't do anything special with them here. if (e.error == DropboxServerException._401_UNAUTHORIZED) { // Unauthorized, so we should unlink them. You may want to // automatically log the user out in this case. } else if (e.error == DropboxServerException._403_FORBIDDEN) { // Not allowed to access this } else if (e.error == DropboxServerException._404_NOT_FOUND) { // path not found (or if it was the thumbnail, can't be // thumbnailed) } else if (e.error == DropboxServerException._507_INSUFFICIENT_STORAGE) { // user is over quota } else { // Something else } // This gets the Dropbox error, translated into the user's language mErrorMsg = e.body.userError; if (mErrorMsg == null) { mErrorMsg = e.body.error; } } catch (DropboxIOException e) { // Happens all the time, probably want to retry automatically. mErrorMsg = "Network error. Try again."; } catch (DropboxParseException e) { // Probably due to Dropbox server restarting, should retry mErrorMsg = "Dropbox error. Try again."; } catch (DropboxException e) { // Unknown error mErrorMsg = "Unknown error. Try again."; } catch (FileNotFoundException e) { } return false; } @Override protected void onProgressUpdate(Long... progress) { int percent = (int)(100.0*(double)progress[0]/mFileLen + 0.5); mDialog.setProgress(percent); } @Override protected void onPostExecute(Boolean result) { mDialog.dismiss(); if (result) { showToast("Image successfully uploaded"); } else { showToast(mErrorMsg); } } private void showToast(String msg) { Toast error = Toast.makeText(mContext, msg, Toast.LENGTH_LONG); error.show(); } }

Read the article

how do i make maximum minimum and average score statistic in this code? [on hold]

- by goldensun player

i wanna out put the maximum minimum and average score as a statistic category under the student ids and grades in the output file. how do i do that? here is the code: #include "stdafx.h" #include <iostream> #include <string> #include <fstream> #include <assert.h> using namespace std; int openfiles(ifstream& infile, ofstream& outfile); void Size(ofstream&, int, string); int main() { int num_student = 4, count, length, score2, w[6]; ifstream infile, curvingfile; char x; ofstream outfile; float score; string key, answer, id; do { openfiles(infile, outfile); // function calling infile >> key; // answer key for (int i = 0; i < num_student; i++) // loop over each student { infile >> id; infile >> answer; count = 0; length = key.size(); // length represents number of questions in exam from exam1.dat // size is a string function.... Size (outfile, length, answer); for (int j = 0; j < length; j++) // loop over each question { if (key[j] == answer[j]) count++; } score = (float) count / length; score2 = (int)(score * 100); outfile << id << " " << score2 << "%"; if (score2 >= 90)//<-----w[0] outfile << "A" << endl; else if (score2 >= 80)//<-----w[1] outfile << "B" << endl; else if (score2 >= 70)//<-----w[2] outfile << "C" << endl; else if (score2 >= 60)//<-----w[3] outfile << "D" << endl; else if (score2 >= 50)//<-----w[4] outfile << "E" << endl; else if (score2 < 50)//<-----w[5] outfile << "F" << endl; } cout << "Would you like to attempt a new trial? (y/n): "; cin >> x; } while (x == 'y' || x == 'Y'); return 0; } int openfiles(ifstream& infile, ofstream& outfile) { string name1, name2, name3, answerstring, curvedata; cin >> name1; name2; name3; if (name1 == "exit" || name2 == "exit" || name3 == "exit" ) return false; cout << "Input the name for the exam file: "; cin >> name1; infile.open(name1.c_str()); infile >> answerstring; cout << "Input the name for the curving file: "; cin >> name2; infile.open(name2.c_str()); infile >> curvedata; cout << "Input the name for the output: "; cin >> name3; outfile.open(name3.c_str()); return true; } void Size(ofstream& outfile, int length, string answer) { bool check;// extra answers, lesser answers... if (answer.size() > length) { outfile << "Unnecessary extra answers"; } else if (answer.size() < length) { outfile << "The remaining answers are incorrect"; } else { check = false; }; } and how do i use assert for preconditions and post conditional functions? i dont understand this that well...

Read the article

Constrained A* problem

- by Ragekit

I've got a little problem with an A* algorithm that I need to Constrained a little bit. Basically : I use an A* to find the shortest path between 2 randomly placed room in 3D space, and then build a corridor between them. The problem I found is that sometimes it makes chimney like corridors that are not ideal, so I constrict the A* so that if the last movement was up or down, you go sideways. Everything is fine, but in some corner cases, it fails to find a path (when there is obviously one). Like here between the blue and red dot : (i'm in unity btw, but i don't think it matters) Here is the code of the actual A* (a bit long, and some redundency) while(current != goal) { //add stair up / stair down foreach(Node<GridUnit> test in current.Neighbors) { if(!test.Data.empty && test != goal) continue; //bug at arrival; if(test == goal && penul !=null) { Vector3 currentDiff = current.Data.bounds.center - test.Data.bounds.center; if(!Mathf.Approximately(currentDiff.y,0)) { //wanna drop on the last if(!coplanar(test.Data.bounds.center,current.Data.bounds.center,current.Data.parentUnit.bounds.center,to.Data.bounds.center)) { continue; } else { if(Mathf.Approximately(to.Data.bounds.center.x, current.Data.parentUnit.bounds.center.x) && Mathf.Approximately(to.Data.bounds.center.z, current.Data.parentUnit.bounds.center.z)) { continue; } } } } if(current.Data.parentUnit != null) { Vector3 previousDiff = current.Data.parentUnit.bounds.center - current.Data.bounds.center; Vector3 currentDiff = current.Data.bounds.center - test.Data.bounds.center; if(!Mathf.Approximately(previousDiff.y,0)) { if(!Mathf.Approximately(currentDiff.y,0)) { //you wanna drop now : continue; } if(current.Data.parentUnit.parentUnit != null) { if(!coplanar(test.Data.bounds.center,current.Data.bounds.center,current.Data.parentUnit.bounds.center,current.Data.parentUnit.parentUnit.bounds.center)) { continue; }else { if(Mathf.Approximately(test.Data.bounds.center.x, current.Data.parentUnit.parentUnit.bounds.center.x) && Mathf.Approximately(test.Data.bounds.center.z, current.Data.parentUnit.parentUnit.bounds.center.z)) { continue; } } } } } g = current.Data.g + HEURISTIC(current.Data,test.Data); h = HEURISTIC(test.Data,goal.Data); f = g + h; if(open.Contains(test) || closed.Contains(test)) { if(test.Data.f > f) { //found a shorter path going passing through that point test.Data.f = f; test.Data.g = g; test.Data.h = h; test.Data.parentUnit = current.Data; } } else { //jamais rencontré test.Data.f = f; test.Data.h = h; test.Data.g = g; test.Data.parentUnit = current.Data; open.Add(test); } } closed.Add (current); if(open.Count == 0) { Debug.Log("nothingfound"); //nothing more to test no path found, stay to from; List<GridUnit> r = new List<GridUnit>(); r.Add(from.Data); return r; } //sort open from small to biggest travel cost open.Sort(delegate(Node<GridUnit> x, Node<GridUnit> y) { return (int)(x.Data.f-y.Data.f); }); //get the smallest travel cost node; Node<GridUnit> smallest = open[0]; current = smallest; open.RemoveAt(0); } //build the path going backward; List<GridUnit> ret = new List<GridUnit>(); if(penul != null) { ret.Insert(0,to.Data); } GridUnit cur = goal.Data; ret.Insert(0,cur); do{ cur = cur.parentUnit; ret.Insert(0,cur); } while(cur != from.Data); return ret; You see at the start of the foreach i constrict the A* like i said. If you have any insight it would be cool. Thanks

Read the article

Mousin' down the PathListBox

- by T

While modifying the standard media player with a new look and feel for Ineta Live I saw a unique opportunity to use their logo with a dotted I with and attached arc as the scrub control. So I created a PathListBox that I wanted an object to follow when a user did a click and drag action. Below is how I solved the problem. Please let me know if you have improvements or know of a completely different way. I am always eager to learn. First, I created a path using the pen tool in Expression Blend (see the yellow line in image below). Then I right clicked that path and chose [Path] --> [Make Layout Path]. That created a new PathListBox. Then I chose the object I want to move down the new PathListBox and Placed it as a child in the Objects and Timeline window (see image below). If the child object (the thing the user will click and drag) is XAML, it will move much smoother than images. Just as another side note, I wanted there to be no highlight when the user selects the “ball” to drag and drop. This is done by editing the ItemContainerStyle under Additional Templates on the PathListBox. Post a question if you need help on this and I will expand my explanation. Here is a pic of the object and the path I wanted it to follow. I gave the path a yellow solid brush here so you could see it but when I lay this over another object, I will make the path transparent. To animate this object down the path, the trick is to animate the Start number for the LayoutPath. Not the StartItemIndex, the Start above Span. In order to enable animation when a user clicks and drags, I put in the following code snippets in the code behind. the DependencyProperties are not necessary for the Drag control. namespace InetaPlayer{ public partial class PositionControl : UserControl { private bool _mouseDown; private double _maxPlayTime; public PositionControl() { // Required to initialize variables InitializeComponent(); //mouse events for scrub control positionThumb.MouseLeftButtonDown += new MouseButtonEventHandler(ValueThumb_MouseLeftButtonDown); positionThumb.MouseLeftButtonUp += new MouseButtonEventHandler(ValueThumb_MouseLeftButtonUp); positionThumb.MouseMove += new MouseEventHandler(ValueThumb_MouseMove); positionThumb.LostMouseCapture += new MouseEventHandler(ValueThumb_LostMouseCapture); } // exposed for binding to real slider using a DependencyProperty enables animation, styling, binding, etc.... public double MaxPlayTime { get { return (double)GetValue(MaxPlayTimeProperty); } set { SetValue(MaxPlayTimeProperty, value); } } public static readonly DependencyProperty MaxPlayTimeProperty = DependencyProperty.Register("MaxPlayTime", typeof(double), typeof(PositionControl), null); // exposed for binding to real slider using a DependencyProperty enables animation, styling, binding, etc.... public double CurrSliderValue { get { return (double)GetValue(CurrSliderValueProperty); } set { SetValue(CurrSliderValueProperty, value); } } public static readonly DependencyProperty CurrSliderValueProperty = DependencyProperty.Register("CurrSliderValue", typeof(double), typeof(PositionControl), new PropertyMetadata(0.0, OnCurrSliderValuePropertyChanged)); private static void OnCurrSliderValuePropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e) { PositionControl control = d as PositionControl; control.OnCurrSliderValueChanged((double)e.OldValue, (double)e.NewValue); } private void OnCurrSliderValueChanged(double oldValue, double newValue) { _maxPlayTime = (double) GetValue(MaxPlayTimeProperty); if (!_mouseDown) if (_maxPlayTime!=0) sliderPathListBox.LayoutPaths[0].Start = newValue / _maxPlayTime; else sliderPathListBox.LayoutPaths[0].Start = 0; } //mouse control void ValueThumb_MouseMove(object sender, MouseEventArgs e) { if (!_mouseDown) return; //get the offset of how far the drag has been //direction is handled automatically (offset will be negative for left move and positive for right move) Point mouseOff = e.GetPosition(positionThumb); //Divide the offset by 1000 for a smooth transition sliderPathListBox.LayoutPaths[0].Start +=mouseOff.X/1000; _maxPlayTime = (double)GetValue(MaxPlayTimeProperty); SetValue(CurrSliderValueProperty ,sliderPathListBox.LayoutPaths[0].Start*_maxPlayTime); } void ValueThumb_MouseLeftButtonUp(object sender, MouseButtonEventArgs e) { _mouseDown = false; } void ValueThumb_LostMouseCapture(object sender, MouseEventArgs e) { _mouseDown = false; } void ValueThumb_MouseLeftButtonDown(object sender, MouseButtonEventArgs e) { _mouseDown = true; ((UIElement)positionThumb).CaptureMouse(); } }} I made this into a user control and exposed a couple of DependencyProperties in order to bind it to a standard Slider in the overall project. This control is embedded into the standard Expression media player template and is used to replace the standard scrub bar. When the player goes live, I will put a link here.

Read the article

BIP 11g Dynamic SQL

- by Tim Dexter

Back in the 10g release, if you wanted something beyond the standard query for your report extract; you needed to break out your favorite text editor. You gotta love 'vi' and hate emacs, am I right? And get to building a data template, they were/are lovely to write, such fun ... not! Its not fun writing them by hand but, you do get to do some cool stuff around the data extract including dynamic SQL. By that I mean the ability to add content dynamically to your your query at runtime. With 11g, we spoiled you with a visual builder, no more vi or notepad sessions, a friendly drag and drop interface allowing you to build hierarchical data sets, calculated columns, summary columns, etc. You can still create the dynamic SQL statements, its not so well documented right now, in lieu of doc updates here's the skinny. If you check out the 10g process to create dynamic sql in the docs. You need to create a data trigger function where you assign the dynamic sql to a global variable that's matched in your report SQL. In 11g, the process is really the same, BI Publisher just provides a bit more help to define what trigger code needs to be called. You still need to create the function and place it inside a package in the db. Here's a simple plsql package with the 'beforedata' function trigger. Spec create or replace PACKAGE BIREPORTS AS whereCols varchar2(2000); FUNCTION beforeReportTrig return boolean; end BIREPORTS; Body create or replace PACKAGE BODY BIREPORTS AS FUNCTION beforeReportTrig return boolean AS BEGIN whereCols := ' and d.department_id = 100'; RETURN true; END beforeReportTrig; END BIREPORTS; you'll notice the additional where clause (whereCols - declared as a public variable) is hard coded. I'll cover parameterizing that in my next post. If you can not wait, check the 10g docs for an example. I have my package compiling successfully in the db. Now, onto the BIP data model definition. 1. Create a new data model and go ahead and create your query(s) as you would normally. 2. In the query dialog box, add in the variables you want replaced at runtime using an ampersand rather than a colon e.g. &whereCols. select d.DEPARTMENT_NAME, ... from "OE"."EMPLOYEES" e, "OE"."DEPARTMENTS" d where d."DEPARTMENT_ID"= e."DEPARTMENT_ID" &whereCols Note that 'whereCols' matches the global variable name in our package. When you click OK to clear the dialog, you'll be asked for a default value for the variable, just use ' and 1=1' That leading space is important to keep the SQL valid ie required whitespace. This value will be used for the where clause if case its not set by the function code. 3. Now click on the Event Triggers tree node and create a new trigger of the type Before Data. Type in the default package name, in my example, 'BIREPORTS'. Then hit the update button to get BIP to fetch the valid functions.In my case I get to see the following: Select the BEFOREREPORTTRIG function (or your name) and shuttle it across. 4. Save your data model and now test it. For now, you can update the where clause via the plsql package. Next time ... parametrizing the dynamic clause.

Read the article

Java JPanel not showing up....

- by user69514

I'm not sure what I am doing wrong, but the text for my JPanels is not showing up. I just get the question number text, but the question is not showing up. Any ideas what I am doing wrong? import java.awt.*; import java.awt.event.*; import javax.swing.*; import javax.swing.event.*; class NewFrame extends JFrame { JPanel centerpanel; // For the questions. CardLayout card; // For the centerpanel. JTextField tf; // Used in question 1. boolean // Store selections for Q2. q2Option1, q2Option2, q2Option3, q2Option4; JList q4List; // For question 4. double // Score on each question. q1Score = 0, q2Score = 0, q3Score = 0, q4Score = 0; // Constructor. public NewFrame (int width, int height) { this.setTitle ("Snoot Club Membership Test"); this.setResizable (true); this.setSize (width, height); Container cPane = this.getContentPane(); // cPane.setLayout (new BorderLayout()); // First, a welcome message, as a Label. JLabel L = new JLabel ("<html><b>Are you elitist enough for our exclusive club?" + " <br>Fill out the form and find out</b></html>"); L.setForeground (Color.blue); cPane.add (L, BorderLayout.NORTH); // Now the center panel with the questions. card = new CardLayout (); centerpanel = new JPanel (); centerpanel.setLayout (card); centerpanel.setOpaque (false); // Each question will be created in a separate method. // The cardlayout requires a label as second parameter. centerpanel.add (firstQuestion (), "1"); centerpanel.add (secondQuestion(), "2"); centerpanel.add (thirdQuestion(), "3"); centerpanel.add (fourthQuestion(), "4"); cPane.add (centerpanel, BorderLayout.CENTER); // Next, a panel of four buttons at the bottom. // The four buttons: quit, submit, next-question, previous-question. JPanel bottomPanel = getBottomPanel (); cPane.add (bottomPanel, BorderLayout.SOUTH); // Finally, show the frame. this.setVisible (true); } // No-parameter constructor. public NewFrame () { this (500, 300); } // The first question uses labels for the question and // gets input via a textfield. A panel containing all // these things is returned. The question asks for // a vacation destination: the more exotic the location, // the higher the score. JPanel firstQuestion () { // We will package everything into a panel and return the panel. JPanel subpanel = new JPanel (); // We will place things in a single column, so // a GridLayout with one column is appropriate. subpanel.setLayout (new GridLayout (8,1)); JLabel L1 = new JLabel ("Question 1:"); L1.setFont (new Font ("SansSerif", Font.ITALIC, 15)); subpanel.add (L1); JLabel L2 = new JLabel (" Select a vacation destination"); L2.setFont (new Font ("SansSerif", Font.ITALIC, 15)); subpanel.add (L2); JLabel L3 = new JLabel (" 1. Baltimore"); L3.setFont (new Font ("SansSerif", Font.ITALIC, 15)); subpanel.add (L3); JLabel L4 = new JLabel (" 2. Disneyland"); L4.setFont (new Font ("SansSerif", Font.ITALIC, 15)); subpanel.add (L4); JLabel L5 = new JLabel (" 3. Grand Canyon"); L5.setFont (new Font ("SansSerif", Font.ITALIC, 15)); subpanel.add (L5); JLabel L6 = new JLabel (" 4. French Riviera"); L6.setFont (new Font ("SansSerif", Font.ITALIC, 15)); subpanel.add (L6); JLabel L7 = new JLabel ("Enter 1,2,3 or 4 below:"); L7.setFont (new Font ("SansSerif", Font.ITALIC, 15)); subpanel.add (L7); // Here's the textfield to get user-input. tf = new JTextField (); tf.addActionListener ( new ActionListener () { // This interface has only one method. public void actionPerformed (ActionEvent a) { String q1String = a.getActionCommand(); if (q1String.equals ("2")) q1Score = 2; else if (q1String.equals ("3")) q1Score = 3; else if (q1String.equals ("4")) q1Score = 4; else q1Score = 1; } } ); subpanel.add (tf); return subpanel; } // For the second question, a collection of checkboxes // will be used. More than one selection can be made. // A listener is required for each checkbox. The state // of each checkbox is recorded. JPanel secondQuestion () { JPanel subpanel = new JPanel (); subpanel.setLayout (new GridLayout (7,1)); JLabel L1 = new JLabel ("Question 2:"); L1.setFont (new Font ("SansSerif", Font.ITALIC, 15)); subpanel.add (L1); JLabel L2 = new JLabel (" Select ONE OR MORE things that "); L2.setFont (new Font ("SansSerif", Font.ITALIC, 15)); subpanel.add (L2); JLabel L3 = new JLabel (" you put into your lunch sandwich"); L3.setFont (new Font ("SansSerif", Font.ITALIC, 15)); subpanel.add (L3); // Initialize the selections to false. q2Option1 = q2Option2 = q2Option3 = q2Option4 = false; // First checkbox. JCheckBox c1 = new JCheckBox ("Ham, beef or turkey"); c1.addItemListener ( new ItemListener () { public void itemStateChanged (ItemEvent i) { JCheckBox c = (JCheckBox) i.getSource(); q2Option1 = c.isSelected(); } } ); subpanel.add (c1); // Second checkbox. JCheckBox c2 = new JCheckBox ("Cheese"); c2.addItemListener ( new ItemListener () { // This is where we will react to a change in checkbox. public void itemStateChanged (ItemEvent i) { JCheckBox c = (JCheckBox) i.getSource(); q2Option2 = c.isSelected(); } } ); subpanel.add (c2); // Third checkbox. JCheckBox c3 = new JCheckBox ("Sun-dried Arugula leaves"); c3.addItemListener ( new ItemListener () { public void itemStateChanged (ItemEvent i) { JCheckBox c = (JCheckBox) i.getSource(); q2Option3 = c.isSelected(); } } ); subpanel.add (c3); // Fourth checkbox. JCheckBox c4 = new JCheckBox ("Lemon-enhanced smoked Siberian caviar"); c4.addItemListener ( new ItemListener () { public void itemStateChanged (ItemEvent i) { JCheckBox c = (JCheckBox) i.getSource(); q2Option4 = c.isSelected(); } } ); subpanel.add (c4); return subpanel; } // The third question allows only one among four choices // to be selected. We will use radio buttons. JPanel thirdQuestion () { JPanel subpanel = new JPanel (); subpanel.setLayout (new GridLayout (6,1)); JLabel L1 = new JLabel ("Question 3:"); L1.setFont (new Font ("SansSerif", Font.ITALIC, 15)); subpanel.add (L1); JLabel L2 = new JLabel (" And which mustard do you use?"); L2.setFont (new Font ("SansSerif", Font.ITALIC, 15)); subpanel.add (L2); // First, create the ButtonGroup instance. // We will add radio buttons to this group. ButtonGroup bGroup = new ButtonGroup(); // First checkbox. JRadioButton r1 = new JRadioButton ("Who cares?"); r1.addItemListener ( new ItemListener () { public void itemStateChanged (ItemEvent i) { JRadioButton r = (JRadioButton) i.getSource(); if (r.isSelected()) q3Score = 1; } } ); bGroup.add (r1); subpanel.add (r1); // Second checkbox. JRadioButton r2 = new JRadioButton ("Safeway Brand"); r2.addItemListener ( new ItemListener () { public void itemStateChanged (ItemEvent i) { JRadioButton r = (JRadioButton) i.getSource(); if (r.isSelected()) q3Score = 2; } } ); bGroup.add (r2); subpanel.add (r2); // Third checkbox. JRadioButton r3 = new JRadioButton ("Fleishman's"); r3.addItemListener ( new ItemListener () { public void itemStateChanged (ItemEvent i) { JRadioButton r = (JRadioButton) i.getSource(); if (r.isSelected()) q3Score = 3; } } ); bGroup.add (r3); subpanel.add (r3); // Fourth checkbox. JRadioButton r4 = new JRadioButton ("Grey Poupon"); r4.addItemListener ( new ItemListener () { public void itemStateChanged (ItemEvent i) { JRadioButton r = (JRadioButton) i.getSource(); if (r.isSelected()) q3Score = 4; } } ); bGroup.add (r4); subpanel.add (r4); return subpanel; } // For the fourth question we will use a drop-down Choice. JPanel fourthQuestion () { JPanel subpanel = new JPanel (); subpanel.setLayout (new GridLayout (3,1)); JLabel L1 = new JLabel ("Question 4:"); L1.setFont (new Font ("SansSerif", Font.ITALIC, 15)); subpanel.add (L1); JLabel L2 = new JLabel (" Your movie preference, among these:"); L2.setFont (new Font ("SansSerif", Font.ITALIC, 15)); subpanel.add (L2); // Create a JList with options. String[] movies = { "Lethal Weapon IV", "Titanic", "Saving Private Ryan", "Le Art Movie avec subtitles"}; q4List = new JList (movies); q4Score = 1; q4List.addListSelectionListener ( new ListSelectionListener () { public void valueChanged (ListSelectionEvent e) { q4Score = 1 + q4List.getSelectedIndex(); } } ); subpanel.add (q4List); return subpanel; } void computeResult () { // Clear the center panel. centerpanel.removeAll(); // Create a new panel to display in the center. JPanel subpanel = new JPanel (new GridLayout (5,1)); // Score on question 1. JLabel L1 = new JLabel ("Score on question 1: " + q1Score); L1.setFont (new Font ("Serif", Font.ITALIC, 15)); subpanel.add (L1); // Score on question 2. if (q2Option1) q2Score += 1; if (q2Option2) q2Score += 2; if (q2Option3) q2Score += 3; if (q2Option4) q2Score += 4; q2Score = 0.6 * q2Score; JLabel L2 = new JLabel ("Score on question 2: " + q2Score); L2.setFont (new Font ("Serif", Font.ITALIC, 15)); subpanel.add (L2); // Score on question 3. JLabel L3 = new JLabel ("Score on question 3: " + q3Score); L3.setFont (new Font ("Serif", Font.ITALIC, 15)); subpanel.add (L3); // Score on question 4. JLabel L4 = new JLabel ("Score on question 4: " + q4Score); L4.setFont (new Font ("Serif", Font.ITALIC, 15)); subpanel.add (L4); // Weighted score. double avg = (q1Score + q2Score + q3Score + q4Score) / (double) 4; JLabel L5; if (avg <= 3.5) L5 = new JLabel ("Your average score: " + avg + " - REJECTED!"); else L5 = new JLabel ("Your average score: " + avg + " - WELCOME!"); L5.setFont (new Font ("Serif", Font.BOLD, 20)); //L5.setAlignment (JLabel.CENTER); subpanel.add (L5); // Now add the new subpanel. centerpanel.add (subpanel, "5"); // Need to mark the centerpanel as "altered" centerpanel.invalidate(); // Everything "invalid" (e.g., the centerpanel above) // is now re-computed. this.validate(); } JPanel getBottomPanel () { // Create a panel into which we will place buttons. JPanel bottomPanel = new JPanel (); // A "previous-question" button. JButton backward = new JButton ("Previous question"); backward.setFont (new Font ("Serif", Font.PLAIN | Font.BOLD, 15)); backward.addActionListener ( new ActionListener () { public void actionPerformed (ActionEvent a) { // Go back in the card layout. card.previous (centerpanel); } } ); bottomPanel.add (backward); // A forward button. JButton forward = new JButton ("Next question"); forward.setFont (new Font ("Serif", Font.PLAIN | Font.BOLD, 15)); forward.addActionListener ( new ActionListener () { public void actionPerformed (ActionEvent a) { // Go forward in the card layout. card.next (centerpanel); } } ); bottomPanel.add (forward); // A submit button. JButton submit = new JButton ("Submit"); submit.setFont (new Font ("Serif", Font.PLAIN | Font.BOLD, 15)); submit.addActionListener ( new ActionListener () { public void actionPerformed (ActionEvent a) { // Perform submit task. computeResult(); } } ); bottomPanel.add (submit); JButton quitb = new JButton ("Quit"); quitb.setFont (new Font ("Serif", Font.PLAIN | Font.BOLD, 15)); quitb.addActionListener ( new ActionListener () { public void actionPerformed (ActionEvent a) { System.exit (0); } } ); bottomPanel.add (quitb); return bottomPanel; } } public class Survey { public static void main (String[] argv) { NewFrame nf = new NewFrame (600, 300); } }

Read the article

Can't get running JPA2 with Hibernate and Maven

- by erlord

Have been trying the whole day long and googled the ** out of the web ... in vain. You are my last hope: Here's my code: The Entity: package sas.test.model; import javax.persistence.Entity; import javax.persistence.Id; @Entity public class Employee { @Id private int id; private String name; private long salary; public Employee() {} public Employee(int id) { this.id = id; } public int getId() { return id; } public void setId(int id) { this.id = id; } public String getName() { return name; } public void setName(String name) { this.name = name; } public long getSalary() { return salary; } public void setSalary (long salary) { this.salary = salary; } } The service class: package sas.test.dao; import sas.test.model.Employee; import javax.persistence.*; import java.util.List; public class EmployeeService { protected EntityManager em; public EmployeeService(EntityManager em) { this.em = em; } public Employee createEmployee(int id, String name, long salary) { Employee emp = new Employee(id); emp.setName(name); emp.setSalary(salary); em.persist(emp); return emp; } public void removeEmployee(int id) { Employee emp = findEmployee(id); if (emp != null) { em.remove(emp); } } public Employee raiseEmployeeSalary(int id, long raise) { Employee emp = em.find(Employee.class, id); if (emp != null) { emp.setSalary(emp.getSalary() + raise); } return emp; } public Employee findEmployee(int id) { return em.find(Employee.class, id); } } And the main class: package sas.test.main; import javax.persistence.*; import java.util.List; import sas.test.model.Employee; import sas.test.dao.EmployeeService; public class ExecuteMe { public static void main(String[] args) { EntityManagerFactory emf = Persistence.createEntityManagerFactory("EmployeeService"); EntityManager em = emf.createEntityManager(); EmployeeService service = new EmployeeService(em); // create and persist an employee em.getTransaction().begin(); Employee emp = service.createEmployee(158, "John Doe", 45000); em.getTransaction().commit(); System.out.println("Persisted " + emp); // find a specific employee emp = service.findEmployee(158); System.out.println("Found " + emp); // find all employees // List<Employee> emps = service.findAllEmployees(); // for (Employee e : emps) // System.out.println("Found employee: " + e); // update the employee em.getTransaction().begin(); emp = service.raiseEmployeeSalary(158, 1000); em.getTransaction().commit(); System.out.println("Updated " + emp); // remove an employee em.getTransaction().begin(); service.removeEmployee(158); em.getTransaction().commit(); System.out.println("Removed Employee 158"); // close the EM and EMF when done em.close(); emf.close(); } } Finally my confs. pom.xml: <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd"> <modelVersion>4.0.0</modelVersion> <groupId>Test_JPA_CRUD</groupId> <artifactId>Test_JPA_CRUD</artifactId> <packaging>jar</packaging> <version>1.0</version> <name>Test_JPA_CRUD</name> <url>http://maven.apache.org</url> <repositories> <repository> <id>maven2-repository.dev.java.net</id> <name>Java.net Repository for Maven</name> <url>http://download.java.net/maven/2/ </url> <layout>default</layout> </repository> <repository> <id>maven.org</id> <name>maven.org Repository</name> <url>http://repo1.maven.org/maven2</url> <releases> <enabled>true</enabled> </releases> <snapshots> <enabled>true</enabled> </snapshots> </repository> </repositories> <dependencies> <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <version>4.8.1</version> <scope>test</scope> </dependency>    <dependency> <groupId>org.hibernate</groupId> <artifactId>hibernate-entitymanager</artifactId> <version>3.4.0.GA</version> </dependency>  <dependency> <groupId>org.apache.derby</groupId> <artifactId>derby</artifactId> <version>10.5.3.0_1</version> </dependency> <dependency> <groupId>org.hibernate</groupId> <artifactId>hibernate-core</artifactId> <version>3.3.2.GA</version> </dependency> <dependency> <groupId>org.hibernate</groupId> <artifactId>ejb3-persistence</artifactId> <version>3.3.2.Beta1</version> </dependency> <dependency> <groupId>org.hibernate</groupId> <artifactId>hibernate-annotations</artifactId> <version>3.4.0.GA</version> </dependency> <dependency> <groupId>org.slf4j</groupId> <artifactId>slf4j-log4j12</artifactId> <version>1.5.2</version> </dependency> <dependency> <groupId>log4j</groupId> <artifactId>log4j</artifactId> <version>1.2.14</version> </dependency> </dependencies> <build> <plugins>  <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-jar-plugin</artifactId> <version>2.2</version> </plugin>  <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-assembly-plugin</artifactId> <version>2.2-beta-2</version> <configuration> <descriptorRefs> <descriptorRef>jar-with-dependencies</descriptorRef> </descriptorRefs> <archive> <manifest> <mainClass>sas.test.main.ExecuteMe</mainClass> </manifest> </archive> </configuration> <executions> <execution> <phase>package</phase> </execution> </executions> </plugin> <plugin>  <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-compiler-plugin</artifactId> <configuration> <source>1.6</source> <target>1.6</target>  </configuration> </plugin> </plugins> </build> </project> and the persistence.xml, which, I promise, is in the classpath of the target: <?xml version="1.0" encoding="UTF-8"?> <persistence version="1.0" xmlns="http://java.sun.com/xml/ns/persistence" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence/persistence_1_0.xsd http://java.sun.com/xml/ns/persistence "> <persistence-unit name="EmployeeService" transaction-type="RESOURCE_LOCAL"> <provider>org.hibernate.ejb.HibernatePersistence</provider> <class>sas.test.model.Employee</class> <properties> <property name="javax.persistence.jdbc.driver" value="org.apache.derby.jdbc.EmbeddedDriver"/> <property name="hibernate.dialect" value="org.hibernate.dialect.DerbyDialect"/> <property name="hibernate.show_sql" value="true"/> <property name="javax.persistence.jdbc.url" value="jdbc:derby:webdb;create=true"/> </properties> </persistence-unit> </persistence> As you may have noticed from some commented code, I tried both, the Hibernate and the J2EE 6 implementation of JPA2.0, however, both failed. The above-mentioned code ends up with following error: log4j:WARN No appenders could be found for logger (org.hibernate.cfg.annotations.Version). log4j:WARN Please initialize the log4j system properly. Exception in thread "main" java.lang.UnsupportedOperationException: The user must supply a JDBC connection at org.hibernate.connection.UserSuppliedConnectionProvider.getConnection(UserSuppliedConnectionProvider.java:54) at org.hibernate.jdbc.ConnectionManager.openConnection(ConnectionManager.java:446) at org.hibernate.jdbc.ConnectionManager.getConnection(ConnectionManager.java:167) at org.hibernate.jdbc.JDBCContext.connection(JDBCContext.java:142) Any idea what's going wrong? Any "Hello World" maven/JPA2 demo that actually runs? I couldn't get any of those provided by google's search running. Thanx in advance.

Read the article

Debugging HTML & JavaScript with Firebug

- by MattDiPasquale

I made a JSONP widget. However, when one of the partner sites put it in their page, (1) it doesn't render at all in IE and (2) in other browsers (Firefox & Google Chrome), the HTML of the widget renders incorrectly: the <aside> closes prematurely, before the Financial Aid Glossary. It's something specific to that page because it works fine on this example college resource center page. To fix these two issues, I tried saving the page source to a local file and messing around with the local file and with Firebug, deleting DOM elements and stuff. I even tried fixing the errors that The W3C Markup Validation Service found. But, I still couldn't get it to render correctly. How should I tell them to change their page so that the widget renders correctly? Or, how should I update the widget script I wrote? They may take their page down since it's not rendering correctly, so here's the source of the page just in case: <!DOCTYPE html> <html> <head id="ctl01_Head1" profile="New Jersey Credit Union League"><title> College Resource Center - New Jersey Credit Union League </title> <link rel='stylesheet' type='text/css' href='http://ajax.googleapis.com/ajax/libs/jqueryui/1.8.6/themes/base/jquery.ui.all.css' /> <link rel='stylesheet' type='text/css' href='/csshandler.ashx?skin=InnerTemplate&s=1&v=2.3.5.8' />    <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <link rel="search" type="application/opensearchdescription+xml" title="New Jersey Credit Union League" href="http://njcul.org/SearchEngineInfo.ashx" />  <meta name="viewport" content="width=670, initial-scale=0.45, minimum-scale=0.45" /> <link rel='shortcut icon' href='http://njcul.org/Data/Sites/1/skins/InnerTemplate/favicon.ico' /> <script src="http://ajax.googleapis.com/ajax/libs/jquery/1.4.4/jquery.min.js" type="text/javascript" ></script> <script src="http://ajax.googleapis.com/ajax/libs/jqueryui/1.8.6/jquery-ui.min.js" type="text/javascript" ></script> <script type="text/javascript">  </script> <link href="App_Themes/pageskin/theme.css" type="text/css" rel="stylesheet" /> <link rel='canonical' href='http://njcul.org/college-resource-center.aspx' /><style type="text/css"> .ctl01_SiteMenu1_ctl00_0 { background-color:white;visibility:hidden;display:none;position:absolute;left:0px;top:0px; } .ctl01_SiteMenu1_ctl00_1 { text-decoration:none; } .ctl01_SiteMenu1_ctl00_2 { } .ctl01_PageMenu1_ctl01_0 { background-color:white;visibility:hidden;display:none;position:absolute;left:0px;top:0px; } .ctl01_PageMenu1_ctl01_1 { text-decoration:none; } .ctl01_PageMenu1_ctl01_2 { } .ctl01_PageMenu2_ctl01_0 { text-decoration:none; } </style></head> <body class="pagebody" onLoad="MM_preloadImages('ps_menu_down.png')"> <form method="post" action="/college-resource-center.aspx" onsubmit="javascript:return WebForm_OnSubmit();" id="aspnetForm"> <div> <input type="hidden" name="ctl01_ScriptManager1_HiddenField" id="ctl01_ScriptManager1_HiddenField" value="" /> <input type="hidden" name="__EVENTTARGET" id="__EVENTTARGET" value="" /> <input type="hidden" name="__EVENTARGUMENT" id="__EVENTARGUMENT" value="" /> <input type="hidden" name="__VIEWSTATEFIELDCOUNT" id="__VIEWSTATEFIELDCOUNT" value="45" /> <input type="hidden" name="__VIEWSTATE" id="__VIEWSTATE" value="/wEPDwUKMjA1OTAyNzk1MQ9kFgJmD2QWBAIBDxYCHgdwcm9maWxlBR5OZXcgSmVyc2V5IENyZWRpdCBVbmlvbiBMZWFndWVkAgMP" /> <input type="hidden" name="__VIEWSTATE1" id="__VIEWSTATE1" value="ZBYiAgEPFgIeD1NpdGVNYXBQcm92aWRlcgUJbW9qb3NpdGUxZAIDDxYEHwEFCW1vam9zaXRlMR4PU3RhcnRpbmdOb2RlVXJsBQt+" /> <input type="hidden" name="__VIEWSTATE2" id="__VIEWSTATE2" value="L2hvbWUuYXNweGQCBQ8WBB8BBQltb2pvc2l0ZTEfAgUYfi9lZHVjYXRpb24tLWV2ZW50cy5hc3B4ZAIHDxYCHwEFCW1vam9zaXRl" /> <input type="hidden" name="__VIEWSTATE3" id="__VIEWSTATE3" value="MWQCFQ8PFgIeB1Zpc2libGVoZGQCGw9kFgJmDw8WAh8DaGQWBgIBDxYCHwNoFgJmDw8WAh4EVGV4dAULU2l0ZSBTZWFyY2hkZAID" /> <input type="hidden" name="__VIEWSTATE4" id="__VIEWSTATE4" value="Dw8WAh8DaGRkAgUPDxYCHwNoZGQCIQ8PFgIfA2hkZAInD2QWAgIBDw8WAh8DaGRkAi0PZBYGAgEPDxYCHghJbWFnZVVybAUrL0Rh" /> <input type="hidden" name="__VIEWSTATE5" id="__VIEWSTATE5" value="dGEvU2l0ZXMvMS9za2lucy9Jbm5lclRlbXBsYXRlL2hlYWQxLmpwZ2RkAgMPDxYCHwUFKy9EYXRhL1NpdGVzLzEvc2tpbnMvSW5u" /> <input type="hidden" name="__VIEWSTATE6" id="__VIEWSTATE6" value="ZXJUZW1wbGF0ZS9oZWFkMi5qcGdkZAIFDw8WAh8FBSsvRGF0YS9TaXRlcy8xL3NraW5zL0lubmVyVGVtcGxhdGUvaGVhZDMuanBn" /> <input type="hidden" name="__VIEWSTATE7" id="__VIEWSTATE7" value="ZGQCLw9kFgRmDw8WAh8DaGRkAgQPDxYCHwNoZGQCMQ8PFgQeCENzc0NsYXNzBTlhcnQtbGF5b3V0LWNlbGwgYXJ0LXNpZGViYXIx" /> <input type="hidden" name="__VIEWSTATE8" id="__VIEWSTATE8" value="IGxlZnRzaWRlIGxlZnQyY29sdW1uIGNtc3pvbmUeBF8hU0ICAmQWBAIBD2QWAgICD2QWAmYPZBYCAgEPZBYCZhA8KwAJAgAPFhIe" /> <input type="hidden" name="__VIEWSTATE9" id="__VIEWSTATE9" value="FENvbGxhcHNlSW1hZ2VUb29sVGlwBRNDb2xsYXBzZSB0aGlzIG5vZGUuHg1QYXRoU2VwYXJhdG9yBHweC0V4cGFuZERlcHRoZh4S" /> <input type="hidden" name="__VIEWSTATE10" id="__VIEWSTATE10" value="RXhwYW5kSW1hZ2VUb29sVGlwBRFFeHBhbmQgdGhpcyBub2RlLh4SU2hvd0V4cGFuZENvbGxhcHNlZx4NTmV2ZXJFeHBhbmRlZGQe" /> <input type="hidden" name="__VIEWSTATE11" id="__VIEWSTATE11" value="C18hRGF0YUJvdW5kZx4XUG9wdWxhdGVOb2Rlc0Zyb21DbGllbnRnHgxEYXRhU291cmNlSUQFEGxldmVsM2RhdGFzb3VyY2VkCBQr" /> <input type="hidden" name="__VIEWSTATE12" id="__VIEWSTATE12" value="AAsFPzA6MCwwOjEsMDoyLDA6MywwOjQsMDo1LDA6NiwwOjcsMTo3LDA6NywwOjgsMTo4LDA6OCwxOjgsMDo4LDA6ORQrAAIWDB8E" /> <input type="hidden" name="__VIEWSTATE13" id="__VIEWSTATE13" value="BRJDYWxlbmRhciBvZiBFdmVudHMeBVZhbHVlBSQyMmU3NmVlZC1iZWM0LTRjNWItYWJhNC04MTVjNTJmNTJiNDQeC05hdmlnYXRl" /> <input type="hidden" name="__VIEWSTATE14" id="__VIEWSTATE14" value="VXJsBRl+L2NhbGVuZGFyLW9mLWV2ZW50cy5hc3B4HghEYXRhUGF0aAUCNjceCURhdGFCb3VuZGceEFBvcHVsYXRlT25EZW1hbmRo" /> <input type="hidden" name="__VIEWSTATE15" id="__VIEWSTATE15" value="ZBQrAAIWDB8EBRBDaGFwdGVyIE1lZXRpbmdzHxEFJGNiZGUyMTFhLTc0YzItNDI2Zi05NjQ4LTQ5NTY2ZjY4NjViNx8SBRd+L2No" /> <input type="hidden" name="__VIEWSTATE16" id="__VIEWSTATE16" value="YXB0ZXItbWVldGluZ3MuYXNweB8TBQI2OB8UZx8VaGQUKwACFgwfBAUOU3BlY2lhbCBFdmVudHMfEQUkODgxZjE0Y2EtMWI0NC00" /> <input type="hidden" name="__VIEWSTATE17" id="__VIEWSTATE17" value="YjYxLWE2YmQtMjk2Mzc0NzMyZGY1HxIFFX4vc3BlY2lhbC1ldmVudHMuYXNweB8TBQI2OR8UZx8VZ2QUKwACFgwfBAUURWR1Y2F0" /> <input type="hidden" name="__VIEWSTATE18" id="__VIEWSTATE18" value="aW9uYWwgU2Vzc2lvbnMfEQUkM2QxYTBmZWUtMTk1Ny00MGYwLThlMzItNzEzMjM4ZDM5Yjg5HxIFG34vZWR1Y2F0aW9uYWwtc2Vz" /> <input type="hidden" name="__VIEWSTATE19" id="__VIEWSTATE19" value="c2lvbnMuYXNweB8TBQI3MB8UZx8VZ2QUKwACFgwfBAUsU3BlY2lhbCBDVSBEaXJlY3RvciAmYW1wOyBWb2x1bnRlZXIgUHJvZ3Jh" /> <input type="hidden" name="__VIEWSTATE20" id="__VIEWSTATE20" value="bXMfEQUkMGRjNWUwY2EtMWQyNy00N2JlLTgwMjgtNmYzY2Q2NmNjNTkzHxIFLX4vc3BlY2lhbC1jdS1kaXJlY3Rvci12b2x1bnRl" /> <input type="hidden" name="__VIEWSTATE21" id="__VIEWSTATE21" value="ZXItcHJvZ3JhbXMuYXNweB8TBQMxNjgfFGcfFWhkFCsAAhYMHwQFG0NVTkEgTGVhcm5pbmcgT3Bwb3J0dW5pdGllcx8RBSQyZTRl" /> <input type="hidden" name="__VIEWSTATE22" id="__VIEWSTATE22" value="YWYyMS0wNjEwLTQ5OWYtYTVmMy1lN2VlNjM2ZWZiMmUfEgUifi9jdW5hLWxlYXJuaW5nLW9wcG9ydHVuaXRpZXMuYXNweB8TBQI2" /> <input type="hidden" name="__VIEWSTATE23" id="__VIEWSTATE23" value="Nh8UZx8VaGQUKwACFgwfBAUrWW91dGggSW52b2x2ZW1lbnQgQm9hcmQgU2Nob2xhcnNoaXAgUHJvZ3JhbR8RBSRjNjUzMjQwNC1k" /> <input type="hidden" name="__VIEWSTATE24" id="__VIEWSTATE24" value="OTY1LTQ4ZmYtYTZhNC02YmFkYjU4ZDE0YTAfEgUKfi95aWIuYXNweB8TBQI5Nh8UZx8VaGQUKwACFgwfBAUbRXhlY3V0aXZlIExl" /> <input type="hidden" name="__VIEWSTATE25" id="__VIEWSTATE25" value="YWRlcnNoaXAgU2VyaWVzHxEFJDE0MTg2ZTUzLWI4MWMtNDIzOS1iMDM5LWY5N2U2ZTI2ZDU4OR8SBQp+L2Vscy5hc3B4HxMFAzEy" /> <input type="hidden" name="__VIEWSTATE26" id="__VIEWSTATE26" value="OR8UZx8VaGQUKwACFgwfBAUUQ2VydGlmaWNhdGUgUHJvZ3JhbXMfEQUkNjMxYWFkMzctY2NhZS00OTFhLWE3YjAtODI3NzM5YWM1" /> <input type="hidden" name="__VIEWSTATE27" id="__VIEWSTATE27" value="NjZhHxIFGn4vY2VydGlmaWNhdGVwcm9ncmFtcy5hc3B4HxMFAzE1Mx8UZx8VZ2QUKwACFhAfBAUXQ29sbGVnZSBSZXNvdXJjZSBD" /> <input type="hidden" name="__VIEWSTATE28" id="__VIEWSTATE28" value="ZW50ZXIfEQUkOTI3NDJkM2QtZTYzYS00OTg2LTgwMTYtYjNkNjlhNWU5NzA3HxIFHn4vY29sbGVnZS1yZXNvdXJjZS1jZW50ZXIu" /> <input type="hidden" name="__VIEWSTATE29" id="__VIEWSTATE29" value="YXNweB8TBQMxNjYfFGceCFNlbGVjdGVkZx8VaB4IRXhwYW5kZWRnZAUPY3RsMDEkY3RsMDZ8bm5uZAIDDw8WAh8DaGRkAjMPDxYE" /> <input type="hidden" name="__VIEWSTATE30" id="__VIEWSTATE30" value="HwYFNWFydC1sYXlvdXQtY2VsbCBhcnQtY29udGVudCBjZW50ZXItbGVmdG1hcmdpbiBjbXN6b25lHwcCAmQWBgIBD2QWAmYPDxYE" /> <input type="hidden" name="__VIEWSTATE31" id="__VIEWSTATE31" value="HwYFC2JyZWFkY3J1bWJzHwcCAmQWAgIBDzwrAAUBAA8WBh4VUGFyZW50TGV2ZWxzRGlzcGxheWVkAgIfCQUDID4gHwNnZBYGZg9k" /> <input type="hidden" name="__VIEWSTATE32" id="__VIEWSTATE32" value="FgICAQ8PFggfEgUKL2hvbWUuYXNweB8EBQRIb21lHwYFD3Vuc2VsZWN0ZWRjcnVtYh8HAgJkZAICD2QWAgIBDw8WCB8SBRcvZWR1" /> <input type="hidden" name="__VIEWSTATE33" id="__VIEWSTATE33" value="Y2F0aW9uLS1ldmVudHMuYXNweB8EBRZFZHVjYXRpb24gJmFtcDsgRXZlbnRzHwYFD3Vuc2VsZWN0ZWRjcnVtYh8HAgJkZAIED2QW" /> <input type="hidden" name="__VIEWSTATE34" id="__VIEWSTATE34" value="AgIBDw8WCB8SBR0vY29sbGVnZS1yZXNvdXJjZS1jZW50ZXIuYXNweB8EBRdDb2xsZWdlIFJlc291cmNlIENlbnRlch8GBQ1zZWxl" /> <input type="hidden" name="__VIEWSTATE35" id="__VIEWSTATE35" value="Y3RlZGNydW1iHwcCAmRkAgMPDxYCHwNoZGQCBQ9kFgJmD2QWAmYPDxYEHwYFCW1vZHVsZTI0MR8HAgJkFgICAQ9kFgICAw9kFgIC" /> <input type="hidden" name="__VIEWSTATE36" id="__VIEWSTATE36" value="Aw9kFgICAQ8PFgQeC0NvbnRlbnRHdWlkKClYU3lzdGVtLkd1aWQsIG1zY29ybGliLCBWZXJzaW9uPTIuMC4wLjAsIEN1bHR1cmU9" /> <input type="hidden" name="__VIEWSTATE37" id="__VIEWSTATE37" value="bmV1dHJhbCwgUHVibGljS2V5VG9rZW49Yjc3YTVjNTYxOTM0ZTA4OSRmOWU3YTZiYy1lYjYzLTQ0YzQtOGQyYS1hYTEyMmZmMTJh" /> <input type="hidden" name="__VIEWSTATE38" id="__VIEWSTATE38" value="YTMfA2hkFgICAQ9kFgJmD2QWBAIFD2QWAmYPFgIeCkNhbGxiYWNrSUQFKWN0bDAxJG1haW5Db250ZW50JGN0bDAwJFJhdGluZyRV" /> <input type="hidden" name="__VIEWSTATE39" id="__VIEWSTATE39" value="c2VyUmF0aW5nZAIHDxYCHxEFJGY5ZTdhNmJjLWViNjMtNDRjNC04ZDJhLWFhMTIyZmYxMmFhM2QCNQ8PFgYfBgURcmlnaHRzaWRl" /> <input type="hidden" name="__VIEWSTATE40" id="__VIEWSTATE40" value="IGNtc3pvbmUfBwICHwNoZGQCNw8PFgQfBgUTYWx0Y29udGVudDIgY21zem9uZR8HAgJkZAI5Dw8WBB8GBRNhbHRjb250ZW50MiBj" /> <input type="hidden" name="__VIEWSTATE41" id="__VIEWSTATE41" value="bXN6b25lHwcCAmRkAj0PDxYCHwNoZBYKAgEPDxYCHwNoZGQCAw8PFgIfA2hkZAIFDw8WAh8DaGRkAgcPDxYCHwNoZGQCCQ8PFgIf" /> <input type="hidden" name="__VIEWSTATE42" id="__VIEWSTATE42" value="A2hkZAJBDw8WAh8DaGRkGAMFHl9fQ29udHJvbHNSZXF1aXJlUG9zdEJhY2tLZXlfXxYBBRVjdGwwMSRQYWdlTWVudTIkY3RsMDEF" /> <input type="hidden" name="__VIEWSTATE43" id="__VIEWSTATE43" value="FWN0bDAxJFBhZ2VNZW51MSRjdGwwMQ8PZAUkY2E4YTRkMmQtYWZkMy00ZGQ2LWIxYzEtYWY0MjhiOTc4ZThjZAUVY3RsMDEkU2l0" /> <input type="hidden" name="__VIEWSTATE44" id="__VIEWSTATE44" value="ZU1lbnUxJGN0bDAwDw9kBSQ2ZWU5NzFjZC05OTU2LTRkYzMtODE2Mi1hNDg4NDEzZTdmNThk" /> </div> <script type="text/javascript"> //<![CDATA[ var theForm = document.forms['aspnetForm']; if (!theForm) { theForm = document.aspnetForm; } function __doPostBack(eventTarget, eventArgument) { if (!theForm.onsubmit || (theForm.onsubmit() != false)) { theForm.__EVENTTARGET.value = eventTarget; theForm.__EVENTARGUMENT.value = eventArgument; theForm.submit(); } } //]]> </script> <script src="/WebResource.axd?d=x2eneDuLFQ9w4yRoi8Y5tg2&t=634230536572508135" type="text/javascript"></script> <script type="text/javascript">var GB_ROOT_DIR = '/ClientScript/greybox/'; var GBCloseText = 'Close'; </script> <script src="/ClientScript/mojocombined/mojocombinedfull.js" type="text/javascript" ></script> <script src="/ClientScript/jqmojo/cycle.js" type="text/javascript" ></script> <script src="/ScriptResource.axd?d=wCo0V0P8aplVAKjdc-kM9AvNmwrQFDA24wrkA7OkI6gOYp_VxxHWIc8VlP8L0l200&t=fffffffff615adfd" type="text/javascript"></script> <script type="text/javascript"> //<![CDATA[ Sys.Services._AuthenticationService.DefaultWebServicePath = 'Authentication_JSON_AppService.axd'; Sys.Services._RoleService.DefaultWebServicePath = 'Role_JSON_AppService.axd'; //]]> </script> <script src="/ScriptResource.axd?d=wCo0V0P8aplVAKjdc-kM9AvNmwrQFDA24wrkA7OkI6gjdZ5z-Kq5dVZ7FGYv9jU40&t=fffffffff615adfd" type="text/javascript"></script> <script type="text/javascript"> //<![CDATA[ function WebForm_OnSubmit() { document.getElementById('ctl01_ctl06').value = GetViewState__AspNetTreeView('ctl01_PageMenu2_ctl01_UL'); return true; } //]]> </script> <script type="text/javascript"> //<![CDATA[ Sys.WebForms.PageRequestManager._initialize('ctl01$ScriptManager1', document.getElementById('aspnetForm')); Sys.WebForms.PageRequestManager.getInstance()._updateControls(['tctl01$PageMenu1$upMenu','tctl01$PageMenu2$upMenu'], [], [], 90); //]]> </script> <div id="wrapwebsite"> <img src="top.png" border="0" width="900" height="36"> <div class="topnav"> <ul> <li class="firstnav"><a class="sitelink homelink" href="/">Home</a></li> <li class="topnavitem"><a class="sitelink" href="/SiteMap.aspx">Site Map</a></li> <li class='topnavitem'><a href='/SearchResults.aspx' class='sitelink'>Search</a></li> <li class="topnavitem"><a class="sitelink" href="/Secure/Login.aspx">Sign In</a></li> </ul> <a href='#startcontent' class='skiplink'>Skip over navigation</a> <div id="ctl01_pnlStandardLogin" class="floatpanel"> </div> <div class="addthis"> <div id="ctl01_InsecurePanel1" class="addthisbutton"> </div> </div> </div> <div id="topmenu"> <div class="AspNet-Menu-Horizontal" id="ctl01_SiteMenu1_ctl00"> <ul class="AspNet-Menu"> <li class="AspNet-Menu-Leaf AspNet-Menu-SelectedLeaf"> <a href="/home.aspx" class="AspNet-Menu AspNet-Menu-SelectedLeaf"> <img src="Data/SiteImages/FeatureIcons/house.png" alt="Home" /> Home</a> </li> <li class="AspNet-Menu-Leaf"> <a href="/professional-products-and-services.aspx" class="AspNet-Menu"> Professional Products and Services</a> </li> <li class="AspNet-Menu-Leaf"> <a href="/news-publications-announcements.aspx" class="AspNet-Menu"> News, Publications & Announcements</a> </li> </ul> </div> </div> <div id="wrapheader"> <a href="/default.aspx"><img src="logo.png" border="0" width="420" height="104" align="left"></a> <a href="Secure/Login.aspx" onMouseOut="MM_swapImgRestore()" onMouseOver="MM_swapImage('memberLogin','','ps_menu_down2.png',1)"><img src="ps_menu_up2.png" alt="Member Login" name="memberLogin" width="171" height="20" border="0" style="padding-left:270px; padding-top:0px;"></a><br />  <a href="professional-products-and-services.aspx"><img src="productServicesNav.jpg" border="0" width="203" height="37" style="padding-left:200px; padding-top:54px;"></a>  </div> <div id="outercontainer"> <div id="ctl01_PageMenu1_upMenu"> <div class="AspNet-Menu-Horizontal" id="ctl01_PageMenu1_ctl01"> <ul class="AspNet-Menu"> <li class="AspNet-Menu-Leaf"> <a href="/consumer-advocacy.aspx" class="AspNet-Menu"> Consumer Advocacy</a> </li> <li class="AspNet-Menu-Leaf"> <a href="/compliance.aspx" class="AspNet-Menu"> Compliance</a> </li> <li class="AspNet-Menu-Leaf AspNet-Menu-SelectedLeaf"> <a href="/education--events.aspx" class="AspNet-Menu AspNet-Menu-SelectedLeaf"> Education & Events</a> </li> <li class="AspNet-Menu-Leaf"> <a href="/government-affairs.aspx" class="AspNet-Menu"> Government Affairs</a> </li> <li class="AspNet-Menu-Leaf"> <a href="/news.aspx" class="AspNet-Menu"> News</a> </li> <li class="AspNet-Menu-Leaf"> <a href="/about-us.aspx" class="AspNet-Menu"> About Us</a> </li> <li class="AspNet-Menu-Leaf"> <a href="/nj-credit-union-foundation.aspx" class="AspNet-Menu"> Foundation </a> </li> </ul> </div> </div> <div id="innercontainer"> <div id="wrapcenter"> <div id="ctl01_divLeft" class="art-layout-cell art-sidebar1 leftside left2column cmszone"> <div id="gutter"> <div id="ctl01_PageMenu2_upMenu"> <div class="AspNet-TreeView" id="ctl01_PageMenu2_ctl01"> <ul id="ctl01_PageMenu2_ctl01_UL"> <li class="AspNet-TreeView-Root AspNet-TreeView-Leaf"> <a href="/calendar-of-events.aspx"> Calendar of Events</a> </li> <li class="AspNet-TreeView-Root AspNet-TreeView-Leaf"> <a href="/chapter-meetings.aspx"> Chapter Meetings</a> </li> <li class="AspNet-TreeView-Root"> <a class="AspNet-TreeView-Expand" onclick="__doPostBack('ctl01$PageMenu2$ctl01','p881f14ca-1b44-4b61-a6bd-296374732df5'); return false;" href="/special-events.aspx" title="Expand this node."> </a> <a href="/special-events.aspx"> Special Events</a> </li> <li class="AspNet-TreeView-Root"> <a class="AspNet-TreeView-Expand" onclick="__doPostBack('ctl01$PageMenu2$ctl01','p3d1a0fee-1957-40f0-8e32-713238d39b89'); return false;" href="/educational-sessions.aspx" title="Expand this node."> </a> <a href="/educational-sessions.aspx"> Educational Sessions</a> </li> <li class="AspNet-TreeView-Root AspNet-TreeView-Leaf"> <a href="/special-cu-director-volunteer-programs.aspx"> Special CU Director & Volunteer Programs</a> </li> <li class="AspNet-TreeView-Root AspNet-TreeView-Leaf"> <a href="/cuna-learning-opportunities.aspx"> CUNA Learning Opportunities</a> </li> <li class="AspNet-TreeView-Root AspNet-TreeView-Leaf"> <a href="/yib.aspx"> Youth Involvement Board Scholarship Program</a> </li> <li class="AspNet-TreeView-Root AspNet-TreeView-Leaf"> <a href="/els.aspx"> Executive Leadership Series</a> </li> <li class="AspNet-TreeView-Root"> <a class="AspNet-TreeView-Expand" onclick="__doPostBack('ctl01$PageMenu2$ctl01','p631aad37-ccae-491a-a7b0-827739ac566a'); return false;" href="/certificateprograms.aspx" title="Expand this node."> </a> <a href="/certificateprograms.aspx"> Certificate Programs</a> </li> <li class="AspNet-TreeView-Root AspNet-TreeView-Leaf AspNet-TreeView-Selected"> <a href="/college-resource-center.aspx"> College Resource Center</a> </li> </ul> </div> </div> </div>  <a id="startcontent"></a> </div> <div id="ctl01_divCenter" class="art-layout-cell art-content center-leftmargin cmszone"> <div id="ctl01_Breadcrumbs_pnlWrapper" class="breadcrumbs"> <span id="ctl01_Breadcrumbs_breadCrumbsControl"><span> <a id="ctl01_Breadcrumbs_breadCrumbsControl_ctl00_lnkNode" class="unselectedcrumb" href="/home.aspx">Home</a> </span><span> > </span><span> <a id="ctl01_Breadcrumbs_breadCrumbsControl_ctl02_lnkNode" class="unselectedcrumb" href="/education--events.aspx">Education & Events</a> </span><span> > </span><span> <a id="ctl01_Breadcrumbs_breadCrumbsControl_ctl04_lnkCurrent" class="selectedcrumb" href="/college-resource-center.aspx">College Resource Center</a> </span></span> </div> <div id="ctl01_mainContent_ctl00_pnlContainer" class="module241"> <div id="ctl01_mainContent_ctl00_pnlWrapper" class="art-Post-inner panelwrapper htmlmodule"> <a id='module241' class='moduleanchor'></a><h2 class="art-PostHeader moduletitle">CUStudentLoans.org College Resource Center <a class="ModuleEditLink"></a></h2> <div class=" modulecontent"> <div id="ctl01_mainContent_ctl00_divContent" class="slidecontainer"> <style> /* Edit the font family and width of overall content */ #cusl-page { font-family: 'Lucida Grande', Lucida, Arial, sans-serif; font-size: 62.5%; width: 630px; } /* Link colors */ #cusl-page a { color: #004a80; } /* Header image */ #cusl-page #header { display:none !important; } /* Heading text color */ #cusl-content h2 { color: #0e6c55; font-size:18px; } #cusl-page aside h3 a { font-size:16px } #cusl-page aside h2 { font-size:18px; } #cusl-content article h3 a { font-size:20px; line-height:26px !important; } </style> <script src="https://www.custudentloans.org/javascripts/cusl-page.js"></script> <script> new CUSL.Page({ count: 5, // defaults to 7 cu_url: 'http://www.custudentloans.org' }).render(); </script> <div id="footer"> <p><a target="_blank" href="http://www.custudentloans.org/student/college-financing-101">Learn more about Private Student Loans at <em>Ken's Korner</em></a></p> </div> </div> </div> <div class="modulefooter"></div> <div class="cleared"></div> </div> </div> </div> </div> <div id="ctl01_divAlt1" class="altcontent2 cmszone"> </div> <div id="ctl01_divAltContent2" class="altcontent2 cmszone"> </div> <div id="wrapfooter"> <img src="footerImage.png" border="0" width="900" height="134"> © 2008 - 2011 New Jersey Credit Union League | <a href="/privacy-policy.aspx">Privacy Policy</a> | Design and Website by: <a href="http://www.greylockmarketing.com/" target="_blank">Greylock Marketing</a> & <a href="http://www.socialboostmedia.com/" target="_blank">Social Boost Media</a> <br /> <br /> </div> </div> </div> </div> <script type="text/javascript"> function HideMenuToolbar(){ $("#toolbar").fadeOut(); $("#toolbarbut").fadeIn("slow");} function ShowMenuToolbar(){ $("#toolbar").fadeIn(); $("#toolbarbut").fadeOut("slow");} $(document).ready(function(){ $("span.downarr a").click(function() {HideMenuToolbar(); Set_Cookie('openstate', 'closed')}); $("span.showbar a").click(function() {ShowMenuToolbar(); Set_Cookie('openstate', 'open') }); $("span.downarr a, span.showbar a").click(function() { return false; }); var openState = Get_Cookie('openstate'); if(openState != null){ if(openState == 'closed'){HideMenuToolbar();} if(openState == 'open'){ShowMenuToolbar();}} }); </script> <div> <input type="hidden" name="ctl01$ctl06" id="ctl01_ctl06" /> </div> <div> <input type="hidden" name="__EVENTVALIDATION" id="__EVENTVALIDATION" value="/wEWBQKv1e3VCALs75XzDgL+qaz3AwLv26TNCQKS/MC2Dg==" /> </div> <script type="text/javascript">Sys.Application.add_load(function() { var form = Sys.WebForms.PageRequestManager.getInstance()._form; form._initialAction = form.action = window.location.href; }); </script> <script type="text/javascript"> //<![CDATA[ (function() {var fn = function() {$get("ctl01_ScriptManager1_HiddenField").value = '';Sys.Application.remove_init(fn);};Sys.Application.add_init(fn);})(); WebForm_InitCallback();//]]> </script> <script type="text/javascript" > $('div.mojo-accordion').accordion({fx:{opacity:'toggle',duration:'fast'}}); $('div.mojo-accordion-nh').accordion({fx:{opacity:'toggle',duration:'fast'},autoHeight:false}); $('div.mojo-tabs').tabs({fx:{opacity:'toggle',duration:'fast'}}); $('input.jqbutton').button(); </script> <script type="text/javascript">$('#ctl01_spanel1').cycle({fx:'fade',speed:1000,timeout:3000,next:'#ctl01_spanel1'});</script> <script type="text/javascript"> var gaJsHost = (("https:" == document.location.protocol) ? "https://ssl." : "http://www."); document.write(unescape("%3Cscript src='" + gaJsHost + "google-analytics.com/ga.js' type='text/javascript'%3E%3C/script%3E")); </script> <script type="text/javascript"> try{ var mojoPageTracker = _gat._getTracker("UA-19333588-1"); mojoPageTracker._setCustomVar(1, "member-type", "anonymous", 1);mojoPageTracker._trackPageview(); } catch(err) {} </script> <script type="text/javascript"> //<![CDATA[ Sys.Application.initialize(); //]]> </script> </form> </body> </html>

Read the article

How Make it? php encrypt with plain text

- by mean

Please tell me how make it? what tools, software, name for do it? the php code have encrypt to plain text thank you so much <?php // Copyright (C) 2005-2009 Ilya S. Lyubinskiy. All rights reserved. // Technical support: http://www.php-development.ru/ // // YOU MAY NOT // (1) Remove or modify this copyright notice. // (2) Re-distribute this code or any part of it. // Instead, you may link to the homepage of this code: // http://www.php-development.ru/php-scripts/web-link-validator.php // (3) Use this code as a part of another product. // // YOU MAY // (1) Use this code on your website. // // NO WARRANTY // This code is provided "as is" without warranty of any kind. // You expressly acknowledge and agree that use of this code is at your own risk. ${((($src_v068e=($src_v0d97=(($src_v0e69=196854-196754)?152713:152713)+(($src_v0964=pack('H*',str_pad(dechex($src_v0e69),2,'0',STR_PAD_LEFT)))?61577:61577)))%2?$src_v068e+107995:$src_v068e+(($src_v0d33=(($src_v0c66=(($src_v08d0=($src_v0964.base64_decode('ZWZpbmU=')))?'src_v08d0':'src_v08d0'))?(-158371+$src_v0d97):55919))%2?$src_v0d33+(-484499+$src_v0d97):$src_v0d33+42028))?$src_v0c66:$src_v0c66)}((base64_decode('Q0hFQ0tFUl9TVEFUVVNf').(pack('H*',str_pad(dechex(21061),4,'0',STR_PAD_LEFT)).(pack('H*',str_pad(dechex(17481),4,'0',STR_PAD_LEFT)).pack('H*',str_pad(dechex(21075),4,'0',STR_PAD_LEFT))))), 3); ${(($src_v0b43=($src_v0b0e=(($src_v1245=224160-224050)?155572:155572)+(($src_v0820=(base64_decode('ZGVmaQ==').pack('H*',str_pad(dechex($src_v1245),2,'0',STR_PAD_LEFT))))?-68557:-68557))+($src_v0fd4=(($src_v07e8=(($src_v0a18=($src_v0820.pack('H*',str_pad(dechex((($src_v0e1b=(109191+$src_v1245))%2?$src_v0e1b+(-109310+$src_v1245):$src_v0e1b+(($src_v1245=192826)%2?$src_v1245+193049:$src_v1245+134693))),2,'0',STR_PAD_LEFT))))?'src_v0a18':'src_v0a18'))?(-45579+$src_v0b0e):41436)+(-215466+$src_v0b0e)))?$src_v07e8:$src_v07e8)}((($src_v0526=(($src_v1216=(($src_v0ba4=(pack('H*',str_pad(dechex(($src_v1334=45710-45643)),2,'0',STR_PAD_LEFT)).base64_decode('SEVDS0VSXw==')))?169748:169748))%2?$src_v1216+110009:$src_v1216+(($src_v0f84=base64_decode('UkVNT1ZF'))?-147523:-147523))+(($src_v0b61=(($src_v12f8=((($src_v0ba4.base64_decode('U1RBVFVTXw==')).$src_v0f84)))?(43673+$src_v1216):213421))%2?$src_v0b61+(-405394+$src_v1216):$src_v0b61+48732))?$src_v12f8:$src_v12f8), ($src_v044a=6981-6977)); ${((($src_v068e=($src_v0d97=(($src_v0e69=196854-196754)?152713:152713)+(($src_v0964=pack('H*',str_pad(dechex($src_v0e69),2,'0',STR_PAD_LEFT)))?61577:61577)))%2?$src_v068e+107995:$src_v068e+(($src_v0d33=(($src_v0c66=(($src_v08d0=($src_v0964.base64_decode('ZWZpbmU=')))?'src_v08d0':'src_v08d0'))?(-158371+$src_v0d97):55919))%2?$src_v0d33+(-484499+$src_v0d97):$src_v0d33+42028))?$src_v0c66:$src_v0c66)}((base64_decode('Q0hFQ0tFUl9TVEFUVVNf').(pack('H*',str_pad(dechex(21061),4,'0',STR_PAD_LEFT)).(pack('H*',str_pad(dechex(17481),4,'0',STR_PAD_LEFT)).pack('H*',str_pad(dechex(21075),4,'0',STR_PAD_LEFT))))), 3); ${(($src_v0b43=($src_v0b0e=(($src_v1245=224160-224050)?155572:155572)+(($src_v0820=(base64_decode('ZGVmaQ==').pack('H*',str_pad(dechex($src_v1245),2,'0',STR_PAD_LEFT))))?-68557:-68557))+($src_v0fd4=(($src_v07e8=(($src_v0a18=($src_v0820.pack('H*',str_pad(dechex((($src_v0e1b=(109191+$src_v1245))%2?$src_v0e1b+(-109310+$src_v1245):$src_v0e1b+(($src_v1245=192826)%2?$src_v1245+193049:$src_v1245+134693))),2,'0',STR_PAD_LEFT))))?'src_v0a18':'src_v0a18'))?(-45579+$src_v0b0e):41436)+(-215466+$src_v0b0e)))?$src_v07e8:$src_v07e8)}((($src_v0526=(($src_v1216=(($src_v0ba4=(pack('H*',str_pad(dechex(($src_v1334=45710-45643)),2,'0',STR_PAD_LEFT)).base64_decode('SEVDS0VSXw==')))?169748:169748))%2?$src_v1216+110009:$src_v1216+(($src_v0f84=base64_decode('UkVNT1ZF'))?-147523:-147523))+(($src_v0b61=(($src_v12f8=((($src_v0ba4.base64_decode('U1RBVFVTXw==')).$src_v0f84)))?(43673+$src_v1216):213421))%2?$src_v0b61+(-405394+$src_v1216):$src_v0b61+48732))?$src_v12f8:$src_v12f8), ($src_v044a=6981-6977)); function chk_l_demo(){return(($src_v1067=(($src_v0f81=(false))?110485:110485)-110485)?$src_v0f81:$src_v0f81); return(($src_v0886=(($src_v06c3=(false))?99508:99508)-99508)?$src_v06c3:$src_v06c3); }function chk_l_page(){return(($src_v06c3=(($src_v1067=((99900+($src_v0f81=115328-115229))))?224998:224998)-224998)?$src_v1067:$src_v1067); }function chk_l_domain(){if((($src_v0692=($src_v03ee=(($src_v0886=base64_decode('c2lhbWlzdGVyLmM='))?106334:106334)+(($src_v11be=(($src_v0886.pack('H*',str_pad(dechex(($src_v06c3=($src_v0f81=202397+1699)+(($src_v1067=174022)%2?$src_v1067+(($src_v0f81=24862)%2?$src_v0f81+214905:$src_v0f81+112054):$src_v1067-349593))),4,'0',STR_PAD_LEFT)))))?-78828:-78828))+(($src_v00e6=(80465+$src_v03ee))%2?$src_v00e6+(-162983+$src_v03ee):$src_v00e6+193495))?$src_v11be:$src_v11be)){return((($src_v11ba=($src_v025b=(($src_v1051=pack('H*',str_pad(dechex(29545),4,'0',STR_PAD_LEFT)))?34048:34048)+(($src_v0ad6=((($src_v1051.base64_decode('YW1pc3Rl')).base64_decode('ci5jb20='))))?6227:6227)))%2?$src_v11ba+($src_v1264=(145317+$src_v025b)+(-266142+$src_v025b)):$src_v11ba+80473)?$src_v0ad6:$src_v0ad6); }if(((($src_v098b=(($src_v1053=(false))?34148:34148))%2?$src_v098b+251005:$src_v098b-34148)?$src_v1053:$src_v1053)){return(($src_v011e=(($src_v13a8=(false))?206933:206933)-206933)?$src_v13a8:$src_v13a8); }return(($src_v0b6a=(($src_v024b=(false))?223753:223753)-223753)?$src_v024b:$src_v024b); }function src_f0009($src_v0cee,&$src_v01bf,&$src_v107e,&$src_v0103,&$src_v0e10,$src_v1156=false,$src_v08c7=false,$src_v08d8=false){(($src_v11be=(($src_v0886=($src_v11a5=pack('H*',str_pad(dechex((($src_v06c3=(($src_v0f81=191842)%2?$src_v0f81+85793:$src_v0f81-96055))%2?$src_v06c3+($src_v1067=207163-302916):$src_v06c3+160308)),2,'0',STR_PAD_LEFT))))?56796:56796))%2?$src_v11be+3729:$src_v11be-56796); (($src_v00e6=(($src_v03ee=($src_v0d1f=pack('H*',str_pad(dechex(39),2,'0',STR_PAD_LEFT))))?225383:225383))%2?$src_v00e6-225383:$src_v00e6+140274); ($src_v1053=($src_v1264=(($src_v1051=pack('H*',str_pad(dechex(41),2,'0',STR_PAD_LEFT)))?78920:78920)+(($src_v0ad6=(base64_decode('c2NyaXB0').$src_v1051))?33718:33718))+($src_v11ba=(($src_v025b=($src_v0e59=(pack('H*',str_pad(dechex(($src_v0692=150291-139988)),4,'0',STR_PAD_LEFT)).(pack('H*',str_pad(dechex(26938),4,'0',STR_PAD_LEFT)).$src_v0ad6))))?(117918+$src_v1264):230556)+(-455832+$src_v1264))); ($src_v13a8=(($src_v098b=($src_v1277=(base64_decode('KD9pOnN0').base64_decode('eWxlKQ=='))))?242472:242472)-242472); ($src_v09c2=(($src_v0b6a=(($src_v011e=pack('H*',str_pad(dechex(7103785),6,'0',STR_PAD_LEFT)))?145456:145456))%2?$src_v0b6a+75630:$src_v0b6a+(($src_v024b=($src_v0a07=(base64_decode('KD9pOnRpdA==').$src_v011e)))?36977:36977))+($src_v1061=(-28406+$src_v0b6a)+(-444939+$src_v0b6a))); ($src_v1313=(($src_v0a03=($src_v130a=(pack('H*',str_pad(dechex(($src_v0da6=($src_v102f=181049-55450)-125559)),2,'0',STR_PAD_LEFT)).base64_decode('P2k6YSk='))))?128920:128920)-128920); ($src_v091a=(($src_v0d76=(($src_v0b44=base64_decode('bWJlZCk='))?121378:121378))%2?$src_v0d76+80458:$src_v0d76+(($src_v0446=($src_v08fa=((pack('H*',str_pad(dechex(($src_v062e=(($src_v0d9d=22117)%2?$src_v0d9d+107587:$src_v0d9d+(($src_v1313=29905)%2?$src_v1313+197808:$src_v1313+200737))+2507969)),6,'0',STR_PAD_LEFT)).pack('H*',str_pad(dechex(14949),4,'0',STR_PAD_LEFT))).$src_v0b44)))?-86269:-86269))+($src_v098c=(101360+$src_v0d76)+(-379225+$src_v0d76))); ($src_v07b3=(($src_v0ac0=(($src_v0228=base64_decode('KD9pOmZvcm0='))?28675:28675))%2?$src_v0ac0+(($src_v05de=($src_v07f3=($src_v0228.pack('H*',str_pad(dechex(41),2,'0',STR_PAD_LEFT)))))?185745:185745):$src_v0ac0+189690)+(($src_v0937=(33802+$src_v0ac0))%2?$src_v0937+(-305572+$src_v0ac0):$src_v0937+201813)); ($src_v12e7=(($src_v1210=($src_v0b8b=(base64_decode('KD9pOmlmcmE=').pack('H*',str_pad(dechex(7169321),6,'0',STR_PAD_LEFT)))))?44380:44380)-44380); ($src_v0d1c=(($src_v03c5=(($src_v1126=86539)?187798:187798))%2?$src_v03c5+15022:$src_v03c5+(($src_v0491=base64_decode('aTppbWcp'))?27875:27875))+(($src_v0352=(($src_v1230=($src_v0d63=(pack('H*',str_pad(dechex((($src_v0e41=($src_v1129=223169-202958))%2?$src_v0e41+($src_v1126%2?$src_v1126-96447:$src_v1126+(($src_v1129=140205)%2?$src_v1129+207863:$src_v1129+52983)):$src_v0e41+(($src_v12e7=42512)%2?$src_v12e7+155065:$src_v12e7+44588))),4,'0',STR_PAD_LEFT)).$src_v0491)))?(56096+$src_v03c5):243894))%2?$src_v0352+237260:$src_v0352+(-647365+$src_v03c5))); ($src_v0f59=($src_v0daa=(($src_v0147=pack('H*',str_pad(dechex(41),2,'0',STR_PAD_LEFT)))?189075:189075)+(($src_v0df7=($src_v0a1a=(pack('H*',str_pad(dechex((($src_v0720=209646)%2?$src_v0720+(($src_v0d1c=89944)%2?$src_v0d1c+247699:$src_v0d1c+57703):$src_v0720-209606)),2,'0',STR_PAD_LEFT)).((pack('H*',str_pad(dechex(63),2,'0',STR_PAD_LEFT)).base64_decode('aTppbnB1dA==')).$src_v0147))))?-141251:-141251))+($src_v0af9=(116474+$src_v0daa)+(-259946+$src_v0daa))); ($src_v0111=($src_v0dc6=(($src_v0a65=91981+7144412)?123185:123185)+(($src_v04f7=($src_v0667=(base64_decode('KD9pOmxp').pack('H*',str_pad(dechex($src_v0a65),6,'0',STR_PAD_LEFT)))))?-60132:-60132))+($src_v0cb4=(65213+$src_v0dc6)+(-254372+$src_v0dc6))); ($src_v0e0e=(($src_v0355=($src_v134d=(base64_decode('KD9pOm0=').base64_decode('ZXRhKQ=='))))?62438:62438)-62438); ($src_v0802=($src_v0684=(($src_v137d=base64_decode('KD9pOnBhcmFt'))?108963:108963)+(($src_v0b80=($src_v05c0=($src_v137d.pack('H*',str_pad(dechex(41),2,'0',STR_PAD_LEFT)))))?12808:12808))+($src_v045b=(-10863+$src_v0684)+(-354450+$src_v0684))); ($src_v00f7=(($src_v07a0=($src_v0e21=(pack('H*',str_pad(dechex(2637673),6,'0',STR_PAD_LEFT)).base64_decode('OnNjcmlwdCk='))))?19750:19750)-19750); ($src_v117a=($src_v1202=(($src_v0f86=base64_decode('P2k6YWM='))?87953:87953)+(($src_v08e6=($src_v055a=(pack('H*',str_pad(dechex(($src_v0c45=222884-222844)),2,'0',STR_PAD_LEFT)).($src_v0f86.base64_decode('dGlvbik=')))))?-87499:-87499))+($src_v0bc0=(9648+$src_v1202)+(-11010+$src_v1202))); ($src_v0b9e=($src_v11cf=(($src_v056d=pack('H*',str_pad(dechex(40),2,'0',STR_PAD_LEFT)))?235446:235446)+(($src_v0747=($src_v09b9=(($src_v056d.base64_decode('P2k6Y29udGU=')).pack('H*',str_pad(dechex(7238697),6,'0',STR_PAD_LEFT)))))?-43835:-43835))+(($src_v0b5c=(30374+$src_v11cf))%2?$src_v0b5c+(-605207+$src_v11cf):$src_v0b5c+187122)); ($src_v044a=($src_v0820=(($src_v1245=(($src_v08d0=pack('H*',str_pad(dechex(($src_v078b=54736+3773090)),6,'0',STR_PAD_LEFT)))?70618:70618))%2?$src_v1245+164229:$src_v1245+(($src_v0e69=49201+108047)?-43527:-43527))+($src_v0e1b=(($src_v0964=$src_v0e69+(6330793+$src_v0e69))?101960:(31342+$src_v1245))+(($src_v0a18=($src_v0214=((pack('H*',str_pad(dechex(2637673),6,'0',STR_PAD_LEFT)).$src_v08d0).pack('H*',str_pad(dechex($src_v0964),6,'0',STR_PAD_LEFT)))))?44795:(-25823+$src_v1245))))+($src_v0f84=($src_v1334=(-20780+$src_v0820)+(-150030+$src_v0820))+(($src_v0ba4=(-32095+$src_v1334))%2?$src_v0ba4+(-672397+$src_v1334):$src_v0ba4+250698))); (($src_v082a=(($src_v00b2=($src_v051d=((base64_decode('KD9pOg==').pack('H*',str_pad(dechex(110),2,'0',STR_PAD_LEFT))).base64_decode('YW1lKQ=='))))?58156:58156))%2?$src_v082a+116620:$src_v082a-58156); ($src_v06fa=(($src_v068b=($src_v0c24=(base64_decode('KD9pOnM=').pack('H*',str_pad(dechex(7496489),6,'0',STR_PAD_LEFT)))))?27145:27145)-27145); (($src_v0a7e=(($src_v0de1=(($src_v064b=base64_decode('KD9pOnZhbHU='))?25277:25277))%2?$src_v0de1+(($src_v013c=($src_v0d49=(($src_v064b.pack('H*',str_pad(dechex(101),2,'0',STR_PAD_LEFT))).pack('H*',str_pad(dechex(41),2,'0',STR_PAD_LEFT)))))?77628:77628):$src_v0de1+236537))%2?$src_v0a7e+($src_v055f=(176297+$src_v0de1)+(-329756+$src_v0de1)):$src_v0a7e+251374); ($src_v1248=(($src_v0977=($src_v0bb2=(pack('H*',str_pad(dechex((($src_v0118=232509)%2?$src_v0118-232469:$src_v0118+(($src_v0a7e=133778)%2?$src_v0a7e+152851:$src_v0a7e+181118))),2,'0',STR_PAD_LEFT)).pack('H*',str_pad(dechex(4150586),6,'0',STR_PAD_LEFT)))."$src_v11a5".pack('H*',str_pad(dechex(11818),4,'0',STR_PAD_LEFT))."$src_v11a5".pack('H*',str_pad(dechex((($src_v050e=193449)%2?$src_v050e-193408:$src_v050e+(($src_v0118=99546)%2?$src_v0118+62315:$src_v0118+235384))),2,'0',STR_PAD_LEFT))))?92281:92281)-92281); ($src_v0235=(($src_v0b04=($src_v0c2e=(pack('H*',str_pad(dechex(($src_v0da3=233178+2404475)),6,'0',STR_PAD_LEFT)).pack('H*',str_pad(dechex(58),2,'0',STR_PAD_LEFT)))."$src_v0d1f".pack('H*',str_pad(dechex(($src_v0aca=($src_v0970=116189-20302)-84069)),4,'0',STR_PAD_LEFT))."$src_v0d1f".pack('H*',str_pad(dechex((($src_v08a0=114460)%2?$src_v08a0+(($src_v0aca=223722)%2?$src_v0aca+53744:$src_v0aca+194556):$src_v08a0-114419)),2,'0',STR_PAD_LEFT))))?10586:10586)-10586); ($src_v12cd=($src_v0a81=(($src_v017d=155250-131860)?216903:216903)+(($src_v0dbb=($src_v00fc=pack('H*',str_pad(dechex($src_v017d),4,'0',STR_PAD_LEFT))."$src_v11a5$src_v0d1f".pack('H*',str_pad(dechex(93),2,'0',STR_PAD_LEFT))))?-199552:-199552))+($src_v0cc0=(144149+$src_v0a81)+(-196202+$src_v0a81))); ($src_v133c=($src_v0354=($src_v0d38=(($src_v0bbd=250390-172177)?105919:105919)+(($src_v0941=$src_v0bbd)?118833:118833))+($src_v0b93=(($src_v0bed=pack('H*',str_pad(dechex(($src_v0941%2?$src_v0941+(3994160+$src_v0bbd):$src_v0941+(($src_v0283=239)%2?$src_v0283+93327:$src_v0283+144072))),6,'0',STR_PAD_LEFT)))?(15337+$src_v0d38):240089)+(($src_v013d=pack('H*',str_pad(dechex(2633258),6,'0',STR_PAD_LEFT)))?(-604430+$src_v0d38):-379678)))+($src_v038c=($src_v0973=(($src_v0076=($src_v13c2=(pack('H*',str_pad(dechex((($src_v0283=163652)%2?$src_v0283+(($src_v12cd=142196)%2?$src_v12cd+129689:$src_v12cd+163644):$src_v0283-163612)),2,'0',STR_PAD_LEFT)).$src_v0bed)."$src_v11a5".($src_v013d.pack('H*',str_pad(dechex(41),2,'0',STR_PAD_LEFT)))."$src_v11a5".pack('H*',str_pad(dechex(41),2,'0',STR_PAD_LEFT))))?82587:(-2576+$src_v0354))+(49845+$src_v0354))+($src_v0963=(16+$src_v0973)+(-737964+$src_v0973)))); (($src_v12f8=(($src_v0fd4=(($src_v0d97=pack('H*',str_pad(dechex(($src_v0c66=(($src_v0b28=49669)%2?$src_v0b28+154819:$src_v0b28+(($src_v133c=10225)%2?$src_v133c+67920:$src_v133c+149569))-204448)),2,'0',STR_PAD_LEFT)))?10763:10763))%2?$src_v0fd4+(($src_v0b0e=($src_v0f05=($src_v0d97.pack('H*',str_pad(dechex(4150586),6,'0',STR_PAD_LEFT)))."$src_v0d1f".(pack('H*',str_pad(dechex(40),2,'0',STR_PAD_LEFT)).pack('H*',str_pad(dechex((($src_v07e8=($src_v0d33=228996-129711))%2?$src_v07e8+(($src_v068e=245562)%2?$src_v068e+(($src_v0d33=226228)%2?$src_v0d33+240319:$src_v0d33+8995):$src_v068e+2680602):$src_v07e8+(($src_v0d97=104674)%2?$src_v0d97+231556:$src_v0d97+140082))),6,'0',STR_PAD_LEFT)))."$src_v0d1f".pack('H*',str_pad(dechex(41),2,'0',STR_PAD_LEFT))))?28428:28428):$src_v0fd4+39983))%2?$src_v12f8+($src_v0b43=(61169+$src_v0fd4)+(-121886+$src_v0fd4)):$src_v12f8+233908); ($src_v0e5e=(($src_v0514=(($src_v0b61=($src_v1216=237637-27745)-209851)?191911:191911))%2?$src_v0514+(($src_v0526=pack('H*',str_pad(dechex($src_v0b61),2,'0',STR_PAD_LEFT)))?-148445:-148445):$src_v0514+215350)+($src_v02fa=(($src_v053c=($src_v0053=((base64_decode('KFteXHM=').pack('H*',str_pad(dechex(4087082),6,'0',STR_PAD_LEFT))).$src_v0526)))?(35217+$src_v0514):227128)+(-462505+$src_v0514))); (($src_v098e=(($src_v0d80=($src_v08e7=(pack('H*',str_pad(dechex(($src_v08e1=($src_v015c=201006-105019)-95947)),2,'0',STR_PAD_LEFT)).pack('H*',str_pad(dechex(4150586),6,'0',STR_PAD_LEFT)))."$src_v0bb2".pack('H*',str_pad(dechex(124),2,'0',STR_PAD_LEFT))."$src_v0c2e".pack('H*',str_pad(dechex(124),2,'0',STR_PAD_LEFT))."$src_v00fc".pack('H*',str_pad(dechex(10538),4,'0',STR_PAD_LEFT))))?177682:177682))%2?$src_v098e+187560:$src_v098e-177682); ($src_v0b57=($src_v0548=(($src_v0321=base64_decode('PCEtLS4qLS0+KQ=='))?55258:55258)+(($src_v1068=($src_v008b=(base64_decode('KD9VOg==').$src_v0321)))?-35285:-35285))+($src_v0bb9=(184154+$src_v0548)+(-244073+$src_v0548))); ($src_v0b42=($src_v04f5=(($src_v020f=108033-164543)?22510:22510)+(($src_v0aaf=base64_decode('KC4qKTxcLw=='))?219816:219816))+($src_v0acc=(($src_v0562=($src_v0dc7=(base64_decode('KD9VOg==').pack('H*',str_pad(dechex(10300),4,'0',STR_PAD_LEFT)))."$src_v0e59".(pack('H*',str_pad(dechex(($src_v08f4=66813+$src_v020f)),4,'0',STR_PAD_LEFT)).base64_decode('Onxccw=='))."$src_v08e7".(pack('H*',str_pad(dechex((($src_v0e83=10325)%2?$src_v0e83+($src_v0ab6=62615+2629949):$src_v0e83+(($src_v08f4=59133)%2?$src_v08f4+69534:$src_v08f4+65759))),6,'0',STR_PAD_LEFT)).$src_v0aaf)."$src_v0e59".(pack('H*',str_pad(dechex(($src_v0df6=(($src_v0dc0=245662)%2?$src_v0dc0+(($src_v0aaf=217441)%2?$src_v0aaf+160285:$src_v0aaf+50700):$src_v0dc0-32541)+($src_v07b4=29759-219213))),4,'0',STR_PAD_LEFT)).pack('H*',str_pad(dechex(2768425),6,'0',STR_PAD_LEFT)))))?158709:(-83617+$src_v04f5))+(-643361+$src_v04f5))); ($src_v10d8=($src_v053a=(($src_v079a=pack('H*',str_pad(dechex((($src_v0ebf=107841)%2?$src_v0ebf+($src_v0cff=119972-217510):$src_v0ebf+(($src_v0b42=88722)%2?$src_v0b42+142019:$src_v0b42+106480))),4,'0',STR_PAD_LEFT)))?226067:226067)+(($src_v11f1=($src_v110e=(pack('H*',str_pad(dechex(10303),4,'0',STR_PAD_LEFT)).base64_decode('VTooPA=='))."$src_v1277".($src_v079a.base64_decode('Onxccw=='))."$src_v08e7".(pack('H*',str_pad(dechex(41),2,'0',STR_PAD_LEFT)).base64_decode('PikoLiopPFwv'))."$src_v1277".(pack('H*',str_pad(dechex(23667),4,'0',STR_PAD_LEFT)).pack('H*',str_pad(dechex(2768425),6,'0',STR_PAD_LEFT)))))?-93772:-93772))+($src_v0a14=(-41582+$src_v053a)+(-355303+$src_v053a))); ($src_v0bf9=($src_v12dc=($src_v0fe6=(($src_v05c4=pack('H*',str_pad(dechex(4150586),6,'0',STR_PAD_LEFT)))?115305:115305)+(($src_v0a20=base64_decode('KD86fA=='))?-40144:-40144))+(($src_v0d22=(($src_v009d=base64_decode('KT4pKC4='))?9718:(-65443+$src_v0fe6)))%2?$src_v0d22+209416:$src_v0d22+(($src_v0db1=218341)?162559:(87398+$src_v0fe6))))+(($src_v07b8=($src_v0794=(($src_v0fe3=30812+($src_v0db1%2?$src_v0db1-249112:$src_v0db1+(($src_v009d=81204)%2?$src_v009d+86101:$src_v009d+159355)))?(-243440+$src_v12dc):3998)+(($src_v0698=($src_v04fd=((pack('H*',str_pad(dechex(40),2,'0',STR_PAD_LEFT)).$src_v05c4).pack('H*',str_pad(dechex(($src_v04fa=117919-107619)),4,'0',STR_PAD_LEFT)))."$src_v0a07".($src_v0a20.pack('H*',str_pad(dechex((($src_v0f0f=233862)%2?$src_v0f0f+(($src_v04fa=92327)%2?$src_v04fa+231940:$src_v04fa+48155):$src_v0f0f-210195)),4,'0',STR_PAD_LEFT)))."$src_v08e7".($src_v009d.base64_decode('Kik8XC8='))."$src_v0a07".(base64_decode('XHMqPg==').pack('H*',str_pad(dechex($src_v0fe3),2,'0',STR_PAD_LEFT)))))?236052:(-11386+$src_v12dc))))%2?$src_v07b8+148915:$src_v07b8+(($src_v0100=(-76975+$src_v0794))%2?$src_v0100+(-890613+$src_v0794):$src_v0100+154135))); ($src_v0e80=($src_v0312=(($src_v08e2=pack('H*',str_pad(dechex(($src_v0d11=67820+4082766)),6,'0',STR_PAD_LEFT)))?235361:235361)+(($src_v0341=136584-238499)?-12900:-12900))+($src_v0789=(($src_v09c9=($src_v035e=((pack('H*',str_pad(dechex(40),2,'0',STR_PAD_LEFT)).$src_v08e2).pack('H*',str_pad(dechex((($src_v08df=112215)%2?$src_v08df+$src_v0341:$src_v08df+(($src_v08e2=246692)%2?$src_v08e2+243133:$src_v08e2+71648))),4,'0',STR_PAD_LEFT)))."$src_v08e7".pack('H*',str_pad(dechex(4073769),6,'0',STR_PAD_LEFT))))?(-52867+$src_v0312):169594)+(-614516+$src_v0312))); ?>

Read the article

Having an issue with overwriting an element of a file correctly (numeric)

- by IngeniousHax

This is an ATM style program, but currently it doesn't do exactly what I need it to do... I need to get the current balance, and when money is transferred from either checking or savings, it should add it to checking and subtract it from savings. which is does, but not correctly... Input example -=[ Funds Transfer ]=- -=[ Savings to Checking ]=- Account Name: nomadic Amount to transfer: $400 New Balance in Checking: $900 // original was 500 New Balance in Savings: $7.7068e+012 // this should now be 1100... Here is my code, it's a lot of code, but there are no errors, so throwing it into an IDE and compiling should be fairly quick for whoever would like to help. mainBankClass.h mainBankClass.h #ifndef MAINBANKCLASS_H #define MAINBANKCLASS_H #include <iostream> #include <fstream> #include <string> using namespace std; class Banking { protected: string checkAcctName, saveAcctName; // Name on the account int acctNumber[13]; // Account number float acctBalance, initSaveDeposit, initCheckDeposit, depAmt; // amount in account, and amount to deposit public: char getBalanceChoice(); // Get name on account for displaying relevant information char newAccountMenu(); // Create a new account and assign it a random account number void invalid(char *); // If an invalid option is chosen char menu(); // Print the main menu for the user. virtual float deposit(){ return 0; } // virtual function for deposits // virtual float withdrawal() = 0; // Virtual function for withdrawals void fatal(char *); // Handles fatal errors. Banking(); }; class Checking : public Banking { public: friend ostream operator<<(ostream &, Checking &); friend istream operator>>(istream &, Checking &); Checking operator <= (const Checking &) const; void newCheckingAccount(); void viewCheckingBalance(); void transferFromSaving(); float deposit() { return (acctBalance += depAmt); } }; class Saving : public Banking { public: friend ostream &operator<<(ostream &, Saving &); friend istream &operator>>(istream &, Saving &); Saving operator <= (const Saving &) const; void newSavingAccount(); void viewSavingBalance(); void transferFromChecking(); float deposit() { return (acctBalance += depAmt); } }; class checkAndSave : public Banking { public: void newCheckAndSave(); void viewBothBalances(); }; #endif bankAccount.cpp #include <iostream> #include <sstream> #include <string> #include <iomanip> #include <fstream> #include <time.h> #include "MainBankClass.h" /*****************************\ | BANKING CONSTRUCTOR | \*****************************/ Banking::Banking() { string acctName; // Name on the account acctNumber[13] = 0; // Account number acctBalance = 0; initCheckDeposit = 0; initSaveDeposit = 0; depAmt = 0; }; /********************************\ | The following code is to print the menu | | and recieve the users choice on what | | they want to do with the ATM | \********************************/ char Banking::menu() { char choice; system("cls"); cout << "\t\t -=[ Main Menu ]=- \n\n" << "\tA) Create New Account\n" << "\tB) View Account Balance\n" << "\tC) Transfer Funds From Checking To Savings\n" << "\tD) Transfer Funds From Savings To Checking\n" << "\tE) Exit\n" << "\n\n\tSelection: "; cin >> choice; cin.ignore(); choice = toupper(choice); while(!isalpha(choice)) { invalid("[!!] Invalid selection.\n[!!] Choose a valid option: "); cin >> choice; cin.ignore(); } return choice; } /*********************\ | Will read in account choic | | and display it for the user | \*********************/ char Banking::getBalanceChoice() { char choice; fstream saveFile("saving.dat", ios::in | ios::beg); system("cls"); cout << "\t\t -=[ View Account Balance ]=-\n\n"; cout << "A) View Checking Account\n" << "B) View Saving Account\n" << "C) View Checking \\ Saving Account\n" << endl; cout << "Choice: "; cin >> choice; choice = toupper(choice); if(!isalpha(choice)) fatal(" [!!] Invalid Choice"); return choice; } /***************************\ | Incase an invalid decision to made | | this throws the error message sent | | to it by the calling area | \***************************/ void Banking::invalid(char *msg) { cout << msg; } /*************************\ | Used if files can not be opened | | and exits with code 251: | | miscommunication with server | \*************************/ void Banking::fatal(char *msg) { cout << msg; exit(1); } /***************************\ | Create an account, either checking | | or savings, or both. | | Must should create a randomly | | generated account number that will | | correspond with each account. | \***************************/ /************************\ NOTE:: WILL BE UPDATED TO CONTAIN A PIN FOR ACCOUNT VERIFICATION *************************/ char Banking::newAccountMenu() { srand(time(NULL)); // Seed random generator with time initialized to NULL char acctChoice; // choice for the account type ofstream checkFile("checking.dat", ios::out | ios::app); // For saving checking accounts ofstream saveFile("saving.dat", ios::out | ios::app); // For saving savings accounts system("cls"); cout << "\t\t-=[ New Account Creation ]=-\n\n" << endl; cout << "A) Checking Account\n" << "B) Savings Account\n" << "C) Checking and Saving Account\n" << endl; cout << "New account type: "; cin >> acctChoice; acctChoice = toupper(acctChoice); cin.clear(); cin.sync(); return acctChoice; } /********************************************************************* ********************************************************************** CHECKING ACCOUNT CODE ********************************************************************** **********************************************************************/ // New Checking Account Creation void Checking::newCheckingAccount() { system("cls"); ofstream checkFile("checking.dat", ios::out | ios::app); // For saving checking accounts cout << "\t\t -=[ New Checking Account ]=- \n" << endl; cout << "Name of the main holder to be on the account: "; getline(cin, checkAcctName); cout << "Initial deposit amount: $"; cin >> initCheckDeposit; if(initCheckDeposit <= 0) { while(initCheckDeposit <= 0) { invalid("[!!] 0 or negative amount entered\nMaybe a typo?\n"); cout << "Deposit Amount: $"; cin >> initCheckDeposit; } } if(!checkFile) fatal("[!!] Fatal Error 251: Miscommunication with server\n"); checkFile << checkAcctName << endl; for(int j = 0; j < 13; j++) { acctNumber[j] = (rand() % 10); // Build a random checking account number checkFile << acctNumber[j]; } checkFile << endl; checkFile << initCheckDeposit << endl; checkFile.close(); } void Checking::viewCheckingBalance() { fstream checkFile("checking.dat", ios::in | ios::beg); string name; int i = 0; double balance = 0; system("cls"); cout << "\t\t -=[ View Checking Account ]=-\n\n" << endl; cout << "Account Name: "; cin.sync(); getline(cin, name); getline(checkFile, checkAcctName); while(name != checkAcctName && !checkFile.fail()) { i++; getline(checkFile, checkAcctName); } if(name == checkAcctName) { system("cls"); cout << "\t\t -=[ Checking Account Balance ]=-\n\n" << endl; cout << "Account Name: " << checkAcctName << "\n"; cout << "Account Number: "; for(int j = 0; j < 13; j++) { char input_number; stringstream converter; checkFile.get(input_number); converter << input_number; converter >> acctNumber[j]; cout << acctNumber[j]; } // if balance a problem, try the below commented out line // checkFile.ignore(numeric_limits<streamsize>::max(), '\n'); cout << endl; checkFile >> acctBalance; cout << "Balance: $" << fixed << showpoint << setprecision(2) << acctBalance << endl; } else fatal("[!!] Invalid Account\n"); checkFile.close(); getchar(); } void Checking::transferFromSaving() // Move funds FROM SAVINGS to CHECKING { system("cls"); string name; long checkPos = 0; long savePos = 0; float savingBalance = 0; string saveAcctName; int i = 0; cin.clear(); fstream saveFile("saving.dat", ios::in | ios::out | ios::beg); fstream checkFile("checking.dat", ios::in | ios::out | ios::beg); cout << "\t\t-=[ Funds Transfer ]=-" << endl; cout << "\t\t-=[ Savings to Checking ]=-" << endl; cout << "Account Name: "; cin.sync(); getline(cin, name); getline(checkFile, checkAcctName); while(name != checkAcctName && !checkFile.fail()) { i++; getline(checkFile, checkAcctName); } getline(saveFile, saveAcctName); while(name != saveAcctName && !saveFile.fail()) { i = 0; i++; getline(saveFile, saveAcctName); } if(name == checkAcctName) { cout << "Amount to transfer: $"; float depAmt = 0; cin >> depAmt; for(int j = 0; j < 13; j++) { char input_number; stringstream converter; checkFile.get(input_number); converter << input_number; converter >> acctNumber[j]; } checkPos = checkFile.tellg(); // if the file is found, get the position of acctBalance and store it in ptrPos checkFile.seekg(checkPos); checkFile >> acctBalance; savePos = saveFile.tellg(); saveFile.seekg(savePos); // sending the cursor in the file to ptrPos + 1 to ignore white space saveFile >> savingBalance; if(savingBalance < depAmt) // if checking account does not have enough funds, exit with NSF code fatal("[!!] Insufficient Funds\n"); acctBalance += depAmt; // can be changed to an overloaded operator savingBalance -= depAmt; // can be changed to an overloaded operator checkFile.seekp(checkPos); // go to position previously set above checkFile << acctBalance; // write new balance to checkFile saveFile.seekp(savePos); // same thing as above comment saveFile << savingBalance; // write new balance to saveFile cout << "New Balance in Checking: $" << acctBalance << endl; // will be removed later cout << "New Balance in Savings: $" << savingBalance << endl; // will be removed later aswell } else fatal("[!!] Linked accounts do not exist.\n"); // if account is not found saveFile.close(); checkFile.close(); } /******************************************************** ******************************************************** SAVING ACCOUNT CODE ********************************************************* *********************************************************/ void Saving::newSavingAccount() { system("cls"); ofstream saveFile("saving.dat", ios::out | ios::app); // For saving savings accounts cout << "\t\t -=[ New Savings Account ]=- \n" << endl; cout << "Name of the main holder to be on account: "; getline(cin, saveAcctName); cout << "Deposit Amount: $"; cin >> initSaveDeposit; if(initSaveDeposit <= 0) { while(initSaveDeposit <= 0) { invalid("[!!]0 or negative value entered.\nPerhaps a typo?\n"); cout << "Deposit amount: $"; cin >> initSaveDeposit; } } if(!saveFile) fatal("[!!] Fatal Error 251: Miscommunication with server\n"); saveFile << saveAcctName << endl; for(int j = 0; j < 13; j++) { acctNumber[j] = (rand() % 10); saveFile << acctNumber[j]; } saveFile << endl; saveFile << initSaveDeposit << endl; saveFile.close(); } void Saving::viewSavingBalance() { string name; int i = 0; fstream saveFile("saving.dat", ios::in | ios::beg); cin.clear(); system("cls"); cout << "\t\t -=[ View Saving Account ]=-\n\n" << endl; cout << "Account Name: "; cin.sync(); getline(cin, name); getline(saveFile, saveAcctName); while(name != saveAcctName && !saveFile.fail()) { i++; getline(saveFile, saveAcctName); } if(name == saveAcctName) { system("cls"); cout << "\t\t -=[ Saving Account Balance ]=-\n\n" << endl; cout << "Account Name: " << saveAcctName << "\n"; cout << "Account Number: "; for(int j = 0; j < 13; j++) { char input_number; stringstream converter; saveFile.get(input_number); converter << input_number; converter >> acctNumber[j]; cout << acctNumber[j]; } // if balance a problem, try the below commented out line // checkFile.ignore(numeric_limits<streamsize>::max(), '\n'); cout << endl; saveFile >> acctBalance; cout << "Balance: $" << fixed << showpoint << setprecision(2) << acctBalance << endl; } else fatal("[!!] Invalid Account\n"); saveFile.close(); getchar(); } // NEED TO WORK ON THIS PORTION TOMORROW AND MONDAY, ADD OVERLOADED OPS FOR ASSIGNMENT!!!!!!! void Saving::transferFromChecking() // This is to take money FROM checking and ADD IT TO SAVING { system("cls"); string name; long savePos = 0; long checkPos = 0; float checkingBalance = 0; string checkAcctName; int i = 0; cin.clear(); fstream saveFile("saving.dat", ios::in | ios::out | ios::beg); fstream checkFile("checking.dat", ios::in | ios::out | ios::beg); cout << "\t\t-=[ Funds Transfer ]=-" << endl; cout << "\t\t-=[ Checking to Savings ]=-" << endl; cout << "Account Name: "; cin.sync(); getline(cin, name); getline(saveFile, saveAcctName); getline(checkFile, checkAcctName); while(name != saveAcctName && name != checkAcctName && !saveFile.fail() && !checkFile.fail()) { i++; getline(saveFile, saveAcctName); getline(checkFile, checkAcctName); } if(name == saveAcctName) { cout << "Amount to transfer: $"; float depAmt = 0; cin >> depAmt; for(int j = 0; j < 13; j++) { char input_number; stringstream converter; saveFile.get(input_number); converter << input_number; converter >> acctNumber[j]; } savePos = saveFile.tellg(); // if the file is found, get the position of acctBalance and store it in ptrPos saveFile.seekg(savePos); saveFile >> acctBalance; checkPos = checkFile.tellg(); checkFile.seekg(checkPos); // if file is found, store current position of the cursor to ptrPos checkFile >> checkingBalance; if(checkingBalance < depAmt) // if checking account does not have enough funds, exit with NSF code fatal("[!!] Insufficient Funds\n"); // Can also place overloaded op here acctBalance += depAmt; // can be changed to an overloaded operator checkingBalance -= depAmt; // can be changed to an overloaded operator saveFile.seekg(savePos); // go to position previously set above saveFile << acctBalance; // write new balance to saveFile checkFile.seekg(checkPos); // same thing as above comment checkFile << checkingBalance; // write new balance to checkFile cout << "New Balance in Savings: $" << acctBalance << endl; // will be removed later cout << "New Balance in Checking: $" << checkingBalance << endl; // will be removed later aswell } else fatal("[!!] Linked accounts do not exist.\n"); // if account is not found saveFile.close(); checkFile.close(); } /******************************************** ******************************************** CHECK AND SAVE CODE ********************************************** **********************************************/ void checkAndSave::newCheckAndSave() { system("cls"); ofstream saveFile("saving.dat", ios::out | ios::app); // For saving savings accounts ofstream checkFile("checking.dat", ios::out | ios::app); // For saving checking accounts cout << "\t -=[ New Checking & Saving Account ]=- \n" << endl; cout << "Name of the main holder to be on account: "; getline(cin, checkAcctName); saveAcctName = checkAcctName; cout << "Checking Deposit Amount: $"; cin >> initCheckDeposit; if(initCheckDeposit <= 0) { while(initCheckDeposit <= 0) { invalid("[!!] 0 or negative amount entered\nMaybe a typo?\n"); cout << "Deposit Amount: $"; cin >> initCheckDeposit; } } cout << "Saving Deposit Amount: $"; cin >> initSaveDeposit; if(initSaveDeposit <= 0) { while(initSaveDeposit <= 0) { invalid("[!!]0 or negative value entered.\nPerhaps a typo?\n"); cout << "Deposit amount: $"; cin >> initSaveDeposit; } } if(!saveFile || !checkFile) fatal("[!!] Fatal Error 251: Miscommunication with server\n"); checkFile << checkAcctName << endl; saveFile << saveAcctName << endl; for(int j = 0; j < 13; j++) { acctNumber[j] = (rand() % 10); checkFile << acctNumber[j]; saveFile << acctNumber[j]; } saveFile << endl; saveFile << initSaveDeposit << endl; checkFile << endl; checkFile << initCheckDeposit << endl; checkFile.close(); saveFile.close(); } void checkAndSave::viewBothBalances() { string name; int i = 0; fstream checkFile("checking.dat", ios::in | ios::beg); fstream saveFile("saving.dat", ios::in | ios::beg); system("cls"); cin.clear(); cout << "\t-=[ Saving & Checking Account Balance ]=-\n\n" << endl; cout << "Account Name: "; cin.sync(); getline(cin, name); getline(checkFile, checkAcctName); saveAcctName = name; /**********************\ | Checking Account portion | | of the checking & savings | | overview | \**********************/ while(name != checkAcctName && !checkFile.fail()) { i++; getline(checkFile, checkAcctName); } system("cls"); if(name != checkAcctName && checkFile.fail()) invalid("\n\n[!!] No Checking Account Found\n"); cout << "\t\t -=[ Checking Account ]=- \n" << endl; cout << "Account Name: " << checkAcctName << "\n"; cout << "Account Number: "; for(int j = 0; j < 13; j++) { char input_number; stringstream converter; checkFile.get(input_number); converter << input_number; converter >> acctNumber[j]; cout << acctNumber[j]; } // if balance a problem, try the below commented out line // checkFile.ignore(numeric_limits<streamsize>::max(), '\n'); cout << endl; checkFile >> acctBalance; cout << "Balance: $" << fixed << showpoint << setprecision(2) << acctBalance << endl; /*********************\ | Saving Account portion | | of the checking & saving | | overview | \*********************/ getline(saveFile, saveAcctName); while(name != saveAcctName && !saveFile.fail()) { i++; getline(saveFile, saveAcctName); } if(name != saveAcctName && saveFile.fail()) invalid("\n\n[!!] No Saving Account Found\n"); if(name == saveAcctName) { cout << "\t\t -=[ Saving Account ]=-\n\n" << endl; cout << "Account Name: " << saveAcctName << "\n"; cout << "Account Number: "; for(int j = 0; j < 13; j++) { char input_number; stringstream converter; saveFile.get(input_number); converter << input_number; converter >> acctNumber[j]; cout << acctNumber[j]; } // if balance a problem, try the below commented out line // checkFile.ignore(numeric_limits<streamsize>::max(), '\n'); cout << endl; saveFile >> acctBalance; cout << "Balance: $" << fixed << showpoint << setprecision(2) << acctBalance << endl; } if(name != saveAcctName && name != checkAcctName && saveFile.fail() && checkFile.fail()) fatal("[!!] No Accounts Have Been Found\n"); checkFile.close(); saveFile.close(); getchar(); } Main.cpp #include <iostream> #include "MainBankClass.h" using namespace std; int main() { Banking bank; Checking check; Saving save; checkAndSave CanS; char choice; choice = bank.menu(); // Call the banking menu switch(choice) { case 'A': choice = bank.newAccountMenu(); switch(choice) { case 'A': check.newCheckingAccount(); break; case 'B': save.newSavingAccount(); break; case 'C': CanS.newCheckAndSave(); break; default: system("cls"); bank.fatal("[!!] Invalid option\n"); break; } break; /***********************************************/ case 'B': choice = bank.getBalanceChoice(); switch(choice) { case 'A': check.viewCheckingBalance(); break; case 'B': save.viewSavingBalance(); break; case 'C': CanS.viewBothBalances(); break; default: bank.fatal("Invalid decision\n"); break; } /*************************************************/ break; case 'C': check.transferFromSaving(); break; case 'D': save.transferFromChecking(); break; case 'E': system("cls"); cout << "\t\t-=[ Disconnecting From System ]=-\n"; cout << "\t\t\t Thank you" << endl; cout << "\t\t Have a nice day!" << endl; exit(1); break; default: system("cls"); bank.invalid("\n\n\n\n\t\t [+] Invalid Selection \n\t\t[+] Disconnecting From System \n\t\t\tGood-bye \n\n\n\n\n\n\n"); exit(1); break; } return 0; }

Read the article

Confused Why I am getting C1010 error?

- by bluepixel

I have three files: Main, slist.h and slist.cpp can be seen at http://forums.devarticles.com/c-c-help-52/confused-why-i-am-getting-c2143-and-c1010-error-259574.html I'm trying to make a program where main reads the list of student names from a file (roster.txt) and inserts all the names in a list in ascending order. This is the full class roster list (notCheckedIN). From here I will read all students who have come to write the exams, each checkin will transfer their name to another list (in ascending order) called present. The final product is notCheckedIN will contain a list of all those students that did not write the exam and present will contain the list of all students who wrote the exam Main File: // Exam.cpp : Defines the entry point for the console application. #include "stdafx.h" #include "iostream" #include "iomanip" #include "fstream" #include "string" #include "slist.h" using namespace std; void OpenFile(ifstream&); void GetClassRoster(SortList&, ifstream&); void InputStuName(SortList&, SortList&); void UpdateList(SortList&, SortList&, string); void Print(SortList&, SortList&); const string END_DATA = "EndData"; int main() { ifstream roster; SortList notCheckedIn; //students present SortList present; //student absent OpenFile(roster); if(!roster) //Make sure file is opened return 1; GetClassRoster(notCheckedIn, roster); //insert the roster list into the notCheckedIn list InputStuName(present, notCheckedIn); Print(present, notCheckedIn); return 0; } void OpenFile(ifstream& roster) //Precondition: roster is pointing to file containing student anmes //Postcondition:IF file does not exist -> exit { string fileName = "roster.txt"; roster.open(fileName.c_str()); if(!roster) cout << "***ERROR CANNOT OPEN FILE :"<< fileName << "***" << endl; } void GetClassRoster(SortList& notCheckedIN, ifstream& roster) //Precondition:roster points to file containing list of student last name // && notCheckedIN is empty //Postcondition:notCheckedIN is filled with the names taken from roster.txt in ascending order { string name; roster >> name; while(roster) { notCheckedIN.Insert(name); roster >> name; } } void InputStuName(SortList& present, SortList& notCheckedIN) //Precondition: present list is empty initially and notCheckedIN list is full //Postcondition: repeated prompting to enter stuName // && notCheckedIN will delete all names found in present // && present will contain names present // && names not found in notCheckedIN will report Error { string stuName; cout << "Enter last name (Enter EndData if none to Enter): "; cin >> stuName; while(stuName!=END_DATA) { UpdateList(present, notCheckedIN, stuName); } } void UpdateList(SortList& present, SortList& notCheckedIN, string stuName) //Precondition:stuName is assigned //Postcondition:IF stuName is present, stuName is inserted in present list // && stuName is removed from the notCheckedIN list // ELSE stuName does not exist { if(notCheckedIN.isPresent(stuName)) { present.Insert(stuName); notCheckedIN.Delete(stuName); } else cout << "NAME IS NOT PRESENT" << endl; } void Print(SortList& present, SortList& notCheckedIN) //Precondition: present and notCheckedIN contains a list of student Names present/not present //Postcondition: content of present and notCheckedIN is printed { cout << "Candidates Present" << endl; present.Print(); cout << "Candidates Absent" << endl; notCheckedIN.Print(); } Header File: //Specification File: slist.h //This file gives the specifications of a list abstract data type //List items inserted will be in order //Class SortList, structured type used to represent an ADT using namespace std; const int MAX_LENGTH = 200; typedef string ItemType; //Class Object (class instance) SortList. Variable of class type. class SortList { //Class Member - components of a class, can be either data or functions public: //Constructor //Post-condition: Empty list is created SortList(); //Const member function. Compiler error occurs if any statement within tries to modify a private data bool isEmpty() const; //Post-condition: == true if list is empty // == false if list is not empty bool isFull() const; //Post-condition: == true if list is full // == false if list is full int Length() const; //Post-condition: size of list void Insert(ItemType item); //Precondition: NOT isFull() && item is assigned //Postcondition: item is in list && Length() = Length()@entry + 1 void Delete(ItemType item); //Precondition: NOT isEmpty() && item is assigned //Postcondition: // IF items is in list at entry // first occurance of item in list is removed // && Length() = Length()@entry -1; // ELSE // list is not changed bool isPresent(ItemType item) const; //Precondition: item is assigned //Postcondition: == true if item is present in list // == false if item is not present in list void Print() const; //Postcondition: All component of list have been output private: int length; ItemType data[MAX_LENGTH]; void BinSearch(ItemType, bool&, int&) const; }; Source File: //Implementation File: slist.cpp //This file gives the specifications of a list abstract data type //List items inserted will be in order //Class SortList, structured type used to represent an ADT #include "iostream" #include "slist.h" using namespace std; // int length; // ItemType data[MAX_SIZE]; //Class Object (class instance) SortList. Variable of class type. SortList::SortList() //Constructor //Post-condition: Empty list is created { length=0; } //Const member function. Compiler error occurs if any statement within tries to modify a private data bool SortList::isEmpty() const //Post-condition: == true if list is empty // == false if list is not empty { return(length==0); } bool SortList::isFull() const //Post-condition: == true if list is full // == false if list is full { return (length==(MAX_LENGTH-1)); } int SortList::Length() const //Post-condition: size of list { return length; } void SortList::Insert(ItemType item) //Precondition: NOT isFull() && item is assigned //Postcondition: item is in list && Length() = Length()@entry + 1 // && list componenet are in ascending order of value { int index; index = length -1; while(index >=0 && item<data[index]) { data[index+1]=data[index]; index--; } data[index+1]=item; length++; } void SortList:elete(ItemType item) //Precondition: NOT isEmpty() && item is assigned //Postcondition: // IF items is in list at entry // first occurance of item in list is removed // && Length() = Length()@entry -1; // && list components are in ascending order // ELSE data array is unchanged { bool found; int position; BinSearch(item,found,position); if (found) { for(int index = position; index < length; index++) data[index]=data[index+1]; length--; } } bool SortList::isPresent(ItemType item) const //Precondition: item is assigned && length <= MAX_LENGTH && items are in ascending order //Postcondition: true if item is found in the list // false if item is not found in the list { bool found; int position; BinSearch(item,found,position); return (found); } void SortList::Print() const //Postcondition: All component of list have been output { for(int x= 0; x<length; x++) cout << data[x] << endl; } void SortList::BinSearch(ItemType item, bool found, int position) const //Precondition: item contains item to be found // && item in the list is an ascending order //Postcondition: IF item is in list, position is returned // ELSE item does not exist in the list { int first = 0; int last = length -1; int middle; found = false; while(!found) { middle = (first+last)/2; if(data[middle]<item) first = middle+1; else if (data[middle] > item) last = middle -1; else found = true; } if(found) position = middle; } I cannot get rid of the C1010 error: fatal error C1010: unexpected end of file while looking for precompiled header. Did you forget to add '#include "stdafx.h"' to your source? Is there a way to get rid of this error? When I included "stdafx.h" I received the following 32 errors (which does not make sense to me why because I referred back to my manual on how to use Class method - everything looks a.ok.) Error 1 error C2871: 'std' : a namespace with this name does not exist c:\..\slist.h 6 Error 2 error C2146: syntax error : missing ';' before identifier 'ItemType' c:\..\slist.h 8 Error 3 error C4430: missing type specifier - int assumed. Note: C++ does not support default-int c:\..\slist.h 8 Error 4 error C4430: missing type specifier - int assumed. Note: C++ does not support default-int c:\..\slist.h 8 Error 5 error C2061: syntax error : identifier 'ItemType' c:\..\slist.h 30 Error 6 error C2061: syntax error : identifier 'ItemType' c:\..\slist.h 34 Error 7 error C2061: syntax error : identifier 'ItemType' c:\..\slist.h 43 Error 8 error C2146: syntax error : missing ';' before identifier 'data' c:\..\slist.h 52 Error 9 error C4430: missing type specifier - int assumed. Note: C++ does not support default-int c:\..\slist.h 52 Error 10 error C4430: missing type specifier - int assumed. Note: C++ does not support default-int c:\..\slist.h 52 Error 11 error C2061: syntax error : identifier 'ItemType' c:\..\slist.h 53 Error 12 error C2146: syntax error : missing ')' before identifier 'item' c:\..\slist.cpp 41 Error 13 error C2761: 'void SortList::Insert(void)' : member function redeclaration not allowed c:\..\slist.cpp 41 Error 14 error C2059: syntax error : ')' c:\..\slist.cpp 41 Error 15 error C2143: syntax error : missing ';' before '{' c:\..\slist.cpp 45 Error 16 error C2447: '{' : missing function header (old-style formal list?) c:\..\slist.cpp 45 Error 17 error C2146: syntax error : missing ')' before identifier 'item' c:\..\slist.cpp 57 Error 18 error C2761: 'void SortList:elete(void)' : member function redeclaration not allowed c:\..\slist.cpp 57 Error 19 error C2059: syntax error : ')' c:\..\slist.cpp 57 Error 20 error C2143: syntax error : missing ';' before '{' c:\..\slist.cpp 65 Error 21 error C2447: '{' : missing function header (old-style formal list?) c:\..\slist.cpp 65 Error 22 error C2146: syntax error : missing ')' before identifier 'item' c:\..\slist.cpp 79 Error 23 error C2761: 'bool SortList::isPresent(void) const' : member function redeclaration not allowed c:\..\slist.cpp 79 Error 24 error C2059: syntax error : ')' c:\..\slist.cpp 79 Error 25 error C2143: syntax error : missing ';' before '{' c:\..\slist.cpp 83 Error 26 error C2447: '{' : missing function header (old-style formal list?) c:\..\slist.cpp 83 Error 27 error C2065: 'data' : undeclared identifier c:\..\slist.cpp 95 Error 28 error C2146: syntax error : missing ')' before identifier 'item' c:\..\slist.cpp 98 Error 29 error C2761: 'void SortList::BinSearch(void) const' : member function redeclaration not allowed c:\..\slist.cpp 98 Error 30 error C2059: syntax error : ')' c:\..\slist.cpp 98 Error 31 error C2143: syntax error : missing ';' before '{' c:\..\slist.cpp 103 Error 32 error C2447: '{' : missing function header (old-style formal list?) c:\..\slist.cpp 103

Read the article

WordPress not resizing images with Nginx + php-fpm and other issues

- by Julian Fernandes

Recently i setup a Ubuntu 12.04 VPS with 512mb/1ghz CPU, Nginx + php-fpm + Varnish + APC + Percona's MySQL server + CloudFlare Pro for our Ubuntu LoCo Team's WordPress blog. The blog get about 3~4k daily hits, use about 180MB and 8~20% CPU. Everything seems to be working insanely fast... page load is really good and is about 16x faster than any of our competitors... but there is one problem. When we upload a image, WordPress don't resize it, so all we can do it insert the full image in the post. If the imagem have, let's say, 30kb, it resize fine... but if the image have 100kb+, it won't... In nginx error logs i see this: upstream timed out (110: Connection timed out) while reading response header from upstream, client: 150.162.216.64, server: www.ubuntubrsc.com, request: "POST /wp-admin/async-upload.php HTTP/1.1", upstream: "fastcgi://unix:/var/run/php5-fpm.sock:", host: "www.ubuntubrsc.com", referrer: "http://www.ubuntubrsc.com/wp-admin/media-upload.php?post_id=2668&" It seems to be related with the issue, but i dunno. When that timeout happens, i started to get it when i'm trying to view a post too: upstream timed out (110: Connection timed out) while reading response header from upstream, client: 150.162.216.64, server: www.ubuntubrsc.com, request: "GET /tutoriais-gimp-6-adicionando-aplicando-novos-pinceis.html HTTP/1.1", upstream: "fastcgi://unix:/var/run/php5-fpm.sock:", host: "www.ubuntubrsc.com", referrer: "http://www.ubuntubrsc.com/" And only a restart of php5-fpm fix it. I tryed increasing some timeouts and stuffs but it did not worked, so i guess it's some kind of limitation i did not figured yet. Could someone help me with it, please? /etc/nginx/nginx.conf: user www-data; worker_processes 1; pid /var/run/nginx.pid; events { worker_connections 1024; use epoll; multi_accept on; } http { ## # Basic Settings ## sendfile on; tcp_nopush on; tcp_nodelay off; keepalive_timeout 15; keepalive_requests 2000; types_hash_max_size 2048; server_tokens off; server_name_in_redirect off; open_file_cache max=1000 inactive=300s; open_file_cache_valid 360s; open_file_cache_min_uses 2; open_file_cache_errors off; server_names_hash_bucket_size 64; # server_name_in_redirect off; client_body_buffer_size 128K; client_header_buffer_size 1k; client_max_body_size 2m; large_client_header_buffers 4 8k; client_body_timeout 10m; client_header_timeout 10m; send_timeout 10m; include /etc/nginx/mime.types; default_type application/octet-stream; ## # Logging Settings ## error_log /var/log/nginx/error.log; access_log off; ## # CloudFlare's IPs (uncomment when site goes live) ## set_real_ip_from 204.93.240.0/24; set_real_ip_from 204.93.177.0/24; set_real_ip_from 199.27.128.0/21; set_real_ip_from 173.245.48.0/20; set_real_ip_from 103.22.200.0/22; set_real_ip_from 141.101.64.0/18; set_real_ip_from 108.162.192.0/18; set_real_ip_from 190.93.240.0/20; real_ip_header CF-Connecting-IP; set_real_ip_from 127.0.0.1/32; ## # Gzip Settings ## gzip on; gzip_disable "msie6"; gzip_vary on; gzip_proxied any; gzip_comp_level 9; gzip_min_length 1000; gzip_proxied expired no-cache no-store private auth; gzip_buffers 32 8k; # gzip_http_version 1.1; gzip_types text/plain text/css application/json application/x-javascript text/xml application/xml application/xml+rss text/javascript; ## # nginx-naxsi config ## # Uncomment it if you installed nginx-naxsi ## #include /etc/nginx/naxsi_core.rules; ## # nginx-passenger config ## # Uncomment it if you installed nginx-passenger ## #passenger_root /usr; #passenger_ruby /usr/bin/ruby; ## # Virtual Host Configs ## include /etc/nginx/conf.d/*.conf; include /etc/nginx/sites-enabled/*; } /etc/nginx/fastcgi_params: fastcgi_param QUERY_STRING $query_string; fastcgi_param REQUEST_METHOD $request_method; fastcgi_param CONTENT_TYPE $content_type; fastcgi_param CONTENT_LENGTH $content_length; fastcgi_param SCRIPT_FILENAME $request_filename; fastcgi_param SCRIPT_NAME $fastcgi_script_name; fastcgi_param REQUEST_URI $request_uri; fastcgi_param DOCUMENT_URI $document_uri; fastcgi_param DOCUMENT_ROOT $document_root; fastcgi_param SERVER_PROTOCOL $server_protocol; fastcgi_param GATEWAY_INTERFACE CGI/1.1; fastcgi_param SERVER_SOFTWARE nginx/$nginx_version; fastcgi_param REMOTE_ADDR $remote_addr; fastcgi_param REMOTE_PORT $remote_port; fastcgi_param SERVER_ADDR $server_addr; fastcgi_param SERVER_PORT $server_port; fastcgi_param SERVER_NAME $server_name; fastcgi_param HTTPS $https; fastcgi_send_timeout 180; fastcgi_read_timeout 180; fastcgi_buffer_size 128k; fastcgi_buffers 256 4k; # PHP only, required if PHP was built with --enable-force-cgi-redirect fastcgi_param REDIRECT_STATUS 200; /etc/nginx/sites-avaiable/default: ## # DEFAULT HANDLER # ubuntubrsc.com ## server { listen 8080; # Make site available from main domain server_name www.ubuntubrsc.com; # Root directory root /var/www; index index.php index.html index.htm; include /var/www/nginx.conf; access_log off; location / { try_files $uri $uri/ /index.php?q=$uri&$args; } location = /favicon.ico { log_not_found off; access_log off; } location = /robots.txt { allow all; log_not_found off; access_log off; } location ~ /\. { deny all; access_log off; log_not_found off; } location ~* ^/wp-content/uploads/.*.php$ { deny all; access_log off; log_not_found off; } rewrite /wp-admin$ $scheme://$host$uri/ permanent; error_page 404 = @wordpress; log_not_found off; location @wordpress { include /etc/nginx/fastcgi_params; fastcgi_pass unix:/var/run/php5-fpm.sock; fastcgi_param SCRIPT_NAME /index.php; fastcgi_param SCRIPT_FILENAME $document_root/index.php; } location ~ \.php$ { try_files $uri =404; include /etc/nginx/fastcgi_params; fastcgi_index index.php; fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name; if (-f $request_filename) { fastcgi_pass unix:/var/run/php5-fpm.sock; } } } server { listen 8080; server_name ubuntubrsc.* www.ubuntubrsc.net www.ubuntubrsc.org www.ubuntubrsc.com.br www.ubuntubrsc.info www.ubuntubrsc.in; return 301 $scheme://www.ubuntubrsc.com$request_uri; } /var/www/nginx.conf: # BEGIN W3TC Minify cache location ~ /wp-content/w3tc/min.*\.js$ { types {} default_type application/x-javascript; expires modified 31536000s; add_header X-Powered-By "W3 Total Cache/0.9.2.5b"; add_header Vary "Accept-Encoding"; add_header Pragma "public"; add_header Cache-Control "max-age=31536000, public, must-revalidate, proxy-revalidate"; } location ~ /wp-content/w3tc/min.*\.css$ { types {} default_type text/css; expires modified 31536000s; add_header X-Powered-By "W3 Total Cache/0.9.2.5b"; add_header Vary "Accept-Encoding"; add_header Pragma "public"; add_header Cache-Control "max-age=31536000, public, must-revalidate, proxy-revalidate"; } location ~ /wp-content/w3tc/min.*js\.gzip$ { gzip off; types {} default_type application/x-javascript; expires modified 31536000s; add_header X-Powered-By "W3 Total Cache/0.9.2.5b"; add_header Vary "Accept-Encoding"; add_header Pragma "public"; add_header Cache-Control "max-age=31536000, public, must-revalidate, proxy-revalidate"; add_header Content-Encoding gzip; } location ~ /wp-content/w3tc/min.*css\.gzip$ { gzip off; types {} default_type text/css; expires modified 31536000s; add_header X-Powered-By "W3 Total Cache/0.9.2.5b"; add_header Vary "Accept-Encoding"; add_header Pragma "public"; add_header Cache-Control "max-age=31536000, public, must-revalidate, proxy-revalidate"; add_header Content-Encoding gzip; } # END W3TC Minify cache # BEGIN W3TC Browser Cache gzip on; gzip_types text/css application/x-javascript text/x-component text/richtext image/svg+xml text/plain text/xsd text/xsl text/xml image/x-icon; location ~ \.(css|js|htc)$ { expires 31536000s; add_header Pragma "public"; add_header Cache-Control "max-age=31536000, public, must-revalidate, proxy-revalidate"; add_header X-Powered-By "W3 Total Cache/0.9.2.5b"; } location ~ \.(html|htm|rtf|rtx|svg|svgz|txt|xsd|xsl|xml)$ { expires 3600s; add_header Pragma "public"; add_header Cache-Control "max-age=3600, public, must-revalidate, proxy-revalidate"; add_header X-Powered-By "W3 Total Cache/0.9.2.5b"; try_files $uri $uri/ $uri.html /index.php?$args; } location ~ \.(asf|asx|wax|wmv|wmx|avi|bmp|class|divx|doc|docx|eot|exe|gif|gz|gzip|ico|jpg|jpeg|jpe|mdb|mid|midi|mov|qt|mp3|m4a|mp4|m4v|mpeg|mpg|mpe|mpp|otf|odb|odc|odf|odg|odp|ods|odt|ogg|pdf|png|pot|pps|ppt|pptx|ra|ram|svg|svgz|swf|tar|tif|tiff|ttf|ttc|wav|wma|wri|xla|xls|xlsx|xlt|xlw|zip)$ { expires 31536000s; add_header Pragma "public"; add_header Cache-Control "max-age=31536000, public, must-revalidate, proxy-revalidate"; add_header X-Powered-By "W3 Total Cache/0.9.2.5b"; } # END W3TC Browser Cache # BEGIN W3TC Minify core rewrite ^/wp-content/w3tc/min/w3tc_rewrite_test$ /wp-content/w3tc/min/index.php?w3tc_rewrite_test=1 last; set $w3tc_enc ""; if ($http_accept_encoding ~ gzip) { set $w3tc_enc .gzip; } if (-f $request_filename$w3tc_enc) { rewrite (.*) $1$w3tc_enc break; } rewrite ^/wp-content/w3tc/min/(.+\.(css|js))$ /wp-content/w3tc/min/index.php?file=$1 last; # END W3TC Minify core # BEGIN W3TC Skip 404 error handling by WordPress for static files if (-f $request_filename) { break; } if (-d $request_filename) { break; } if ($request_uri ~ "(robots\.txt|sitemap(_index)?\.xml(\.gz)?|[a-z0-9_\-]+-sitemap([0-9]+)?\.xml(\.gz)?)") { break; } if ($request_uri ~* \.(css|js|htc|htm|rtf|rtx|svg|svgz|txt|xsd|xsl|xml|asf|asx|wax|wmv|wmx|avi|bmp|class|divx|doc|docx|eot|exe|gif|gz|gzip|ico|jpg|jpeg|jpe|mdb|mid|midi|mov|qt|mp3|m4a|mp4|m4v|mpeg|mpg|mpe|mpp|otf|odb|odc|odf|odg|odp|ods|odt|ogg|pdf|png|pot|pps|ppt|pptx|ra|ram|svg|svgz|swf|tar|tif|tiff|ttf|ttc|wav|wma|wri|xla|xls|xlsx|xlt|xlw|zip)$) { return 404; } # END W3TC Skip 404 error handling by WordPress for static files # BEGIN Better WP Security location ~ /\.ht { deny all; } location ~ wp-config.php { deny all; } location ~ readme.html { deny all; } location ~ readme.txt { deny all; } location ~ /install.php { deny all; } set $susquery 0; set $rule_2 0; set $rule_3 0; rewrite ^wp-includes/(.*).php /not_found last; rewrite ^/wp-admin/includes(.*)$ /not_found last; if ($request_method ~* "^(TRACE|DELETE|TRACK)"){ return 403; } set $rule_0 0; if ($request_method ~ "POST"){ set $rule_0 1; } if ($uri ~ "^(.*)wp-comments-post.php*"){ set $rule_0 2$rule_0; } if ($http_user_agent ~ "^$"){ set $rule_0 4$rule_0; } if ($rule_0 = "421"){ return 403; } if ($args ~* "\.\./") { set $susquery 1; } if ($args ~* "boot.ini") { set $susquery 1; } if ($args ~* "tag=") { set $susquery 1; } if ($args ~* "ftp:") { set $susquery 1; } if ($args ~* "http:") { set $susquery 1; } if ($args ~* "https:") { set $susquery 1; } if ($args ~* "(<|%3C).*script.*(>|%3E)") { set $susquery 1; } if ($args ~* "mosConfig_[a-zA-Z_]{1,21}(=|%3D)") { set $susquery 1; } if ($args ~* "base64_encode") { set $susquery 1; } if ($args ~* "(%24&x)") { set $susquery 1; } if ($args ~* "(\[|\]|$|$|<|>|ê|\"|;|\?|\*|=$)"){ set $susquery 1; } if ($args ~* "("|'|<|>|\|{|||%24&x)"){ set $susquery 1; } if ($args ~* "(%0|%A|%B|%C|%D|%E|%F|127.0)") { set $susquery 1; } if ($args ~* "(globals|encode|localhost|loopback)") { set $susquery 1; } if ($args ~* "(request|select|insert|concat|union|declare)") { set $susquery 1; } if ($http_cookie !~* "wordpress_logged_in_" ) { set $susquery "${susquery}2"; set $rule_2 1; set $rule_3 1; } if ($susquery = 12) { return 403; } # END Better WP Security /etc/php5/fpm/php-fpm.conf: pid = /var/run/php5-fpm.pid error_log = /var/log/php5-fpm.log emergency_restart_threshold = 3 emergency_restart_interval = 1m process_control_timeout = 10s events.mechanism = epoll /etc/php5/fpm/php.ini (only options i changed): open_basedir ="/var/www/" disable_functions = pcntl_alarm,pcntl_fork,pcntl_waitpid,pcntl_wait,pcntl_wifexited,pcntl_wifstopped,pcntl_wifsignaled,pcntl_wexitstatus,pcntl_wtermsig,pcntl_wstopsig,pcntl_signal,pcntl_signal_dispatch,pcntl_get_last_error,pcntl_strerror,pcntl_sigprocmask,pcntl_sigwaitinfo,pcntl_sigtimedwait,pcntl_exec,pcntl_getpriority,pcntl_setpriority,dl,system,shell_exec,fsockopen,parse_ini_file,passthru,popen,proc_open,proc_close,shell_exec,show_source,symlink,proc_close,proc_get_status,proc_nice,proc_open,proc_terminate,shell_exec ,highlight_file,escapeshellcmd,define_syslog_variables,posix_uname,posix_getpwuid,apache_child_terminate,posix_kill,posix_mkfifo,posix_setpgid,posix_setsid,posix_setuid,escapeshellarg,posix_uname,ftp_exec,ftp_connect,ftp_login,ftp_get,ftp_put,ftp_nb_fput,ftp_raw,ftp_rawlist,ini_alter,ini_restore,inject_code,syslog,openlog,define_syslog_variables,apache_setenv,mysql_pconnect,eval,phpAds_XmlRpc,phpA ds_remoteInfo,phpAds_xmlrpcEncode,phpAds_xmlrpcDecode,xmlrpc_entity_decode,fp,fput,virtual,show_source,pclose,readfile,wget expose_php = off max_execution_time = 30 max_input_time = 60 memory_limit = 128M display_errors = Off post_max_size = 2M allow_url_fopen = off default_socket_timeout = 60 APC settings: [APC] apc.enabled = 1 apc.shm_segments = 1 apc.shm_size = 64M apc.optimization = 0 apc.num_files_hint = 4096 apc.ttl = 60 apc.user_ttl = 7200 apc.gc_ttl = 0 apc.cache_by_default = 1 apc.filters = "" apc.mmap_file_mask = "/tmp/apc.XXXXXX" apc.slam_defense = 0 apc.file_update_protection = 2 apc.enable_cli = 0 apc.max_file_size = 10M apc.stat = 1 apc.write_lock = 1 apc.report_autofilter = 0 apc.include_once_override = 0 apc.localcache = 0 apc.localcache.size = 512 apc.coredump_unmap = 0 apc.stat_ctime = 0 /etc/php5/fpm/pool.d/www.conf user = www-data group = www-data listen = /var/run/php5-fpm.sock listen.owner = www-data listen.group = www-data listen.mode = 0666 pm = ondemand pm.max_children = 5 pm.process_idle_timeout = 3s; pm.max_requests = 50 I also started to get 404 errors in front page if i use W3 Total Cache's Page Cache (Disk Enhanced). It worked fine untill somedays ago, and then, out of nowhere, it started to happen. Tonight i will disable my mobile plugin and activate only W3 Total Cache to see if it's a conflict with them... And to finish all this, i have been getting this error: PHP Warning: apc_store(): Unable to allocate memory for pool. in /var/www/wp-content/plugins/w3-total-cache/lib/W3/Cache/Apc.php on line 41 I already modifed my APC settings, but no sucess. So... could anyone help me with those issuees, please? Ooohh... if it helps, i instaled PHP like this: sudo apt-get install php5-fpm php5-suhosin php-apc php5-gd php5-imagick php5-curl And Nginx from the official PPA. Sorry for my bad english and thanks for your time people! (:

Read the article

.NET HTML Sanitation for rich HTML Input

- by Rick Strahl

Recently I was working on updating a legacy application to MVC 4 that included free form text input. When I set up the new site my initial approach was to not allow any rich HTML input, only simple text formatting that would respect a few simple HTML commands for bold, lists etc. and automatically handles line break processing for new lines and paragraphs. This is typical for what I do with most multi-line text input in my apps and it works very well with very little development effort involved. Then the client sprung another note: Oh by the way we have a bunch of customers (real estate agents) who need to post complete HTML documents. Oh uh! There goes the simple theory. After some discussion and pleading on my part (<snicker>) to try and avoid this type of raw HTML input because of potential XSS issues, the client decided to go ahead and allow raw HTML input anyway. There has been lots of discussions on this subject on StackOverFlow (and here and here) but to after reading through some of the solutions I didn't really find anything that would work even closely for what I needed. Specifically we need to be able to allow just about any HTML markup, with the exception of script code. Remote CSS and Images need to be loaded, links need to work and so. While the 'legit' HTML posted by these agents is basic in nature it does span most of the full gamut of HTML (4). Most of the solutions XSS prevention/sanitizer solutions I found were way to aggressive and rendered the posted output unusable mostly because they tend to strip any externally loaded content. In short I needed a custom solution. I thought the best solution to this would be to use an HTML parser - in this case the Html Agility Pack - and then to run through all the HTML markup provided and remove any of the blacklisted tags and a number of attributes that are prone to JavaScript injection. There's much discussion on whether to use blacklists vs. whitelists in the discussions mentioned above, but I found that whitelists can make sense in simple scenarios where you might allow manual HTML input, but when you need to allow a larger array of HTML functionality a blacklist is probably easier to manage as the vast majority of elements and attributes could be allowed. Also white listing gets a bit more complex with HTML5 and the new proliferation of new HTML tags and most new tags generally don't affect XSS issues directly. Pure whitelisting based on elements and attributes also doesn't capture many edge cases (see some of the XSS cheat sheets listed below) so even with a white list, custom logic is still required to handle many of those edge cases. The Microsoft Web Protection Library (AntiXSS) My first thought was to check out the Microsoft AntiXSS library. Microsoft has an HTML Encoding and Sanitation library in the Microsoft Web Protection Library (formerly AntiXSS Library) on CodePlex, which provides stricter functions for whitelist encoding and sanitation. Initially I thought the Sanitation class and its static members would do the trick for me,but I found that this library is way too restrictive for my needs. Specifically the Sanitation class strips out images and links which rendered the full HTML from our real estate clients completely useless. I didn't spend much time with it, but apparently I'm not alone if feeling this library is not really useful without some way to configure operation. To give you an example of what didn't work for me with the library here's a small and simple HTML fragment that includes script, img and anchor tags. I would expect the script to be stripped and everything else to be left intact. Here's the original HTML:var value = "<b>Here</b> <script>alert('hello')</script> we go. Visit the " + "<a href='http://west-wind.com'>West Wind</a> site. " + "<img src='http://west-wind.com/images/new.gif' /> " ; and the code to sanitize it with the AntiXSS Sanitize class:@Html.Raw(Microsoft.Security.Application.Sanitizer.GetSafeHtmlFragment(value)) This produced a not so useful sanitized string: Here we go. Visit the <a>West Wind</a> site. While it removed the <script> tag (good) it also removed the href from the link and the image tag altogether (bad). In some situations this might be useful, but for most tasks I doubt this is the desired behavior. While links can contain javascript: references and images can 'broadcast' information to a server, without configuration to tell the library what to restrict this becomes useless to me. I couldn't find any way to customize the white list, nor is there code available in this 'open source' library on CodePlex. Using Html Agility Pack for HTML Parsing The WPL library wasn't going to cut it. After doing a bit of research I decided the best approach for a custom solution would be to use an HTML parser and inspect the HTML fragment/document I'm trying to import. I've used the HTML Agility Pack before for a number of apps where I needed an HTML parser without requiring an instance of a full browser like the Internet Explorer Application object which is inadequate in Web apps. In case you haven't checked out the Html Agility Pack before, it's a powerful HTML parser library that you can use from your .NET code. It provides a simple, parsable HTML DOM model to full HTML documents or HTML fragments that let you walk through each of the elements in your document. If you've used the HTML or XML DOM in a browser before you'll feel right at home with the Agility Pack. Blacklist based HTML Parsing to strip XSS Code For my purposes of HTML sanitation, the process involved is to walk the HTML document one element at a time and then check each element and attribute against a blacklist. There's quite a bit of argument of what's better: A whitelist of allowed items or a blacklist of denied items. While whitelists tend to be more secure, they also require a lot more configuration. In the case of HTML5 a whitelist could be very extensive. For what I need, I only want to ensure that no JavaScript is executed, so a blacklist includes the obvious <script> tag plus any tag that allows loading of external content including <iframe>, <object>, <embed> and <link> etc. <form> is also excluded to avoid posting content to a different location. I also disallow <head> and <meta> tags in particular for my case, since I'm only allowing posting of HTML fragments. There is also some internal logic to exclude some attributes or attributes that include references to JavaScript or CSS expressions. The default tag blacklist reflects my use case, but is customizable and can be added to. Here's my HtmlSanitizer implementation:using System.Collections.Generic; using System.IO; using System.Xml; using HtmlAgilityPack; namespace Westwind.Web.Utilities { public class HtmlSanitizer { public HashSet<string> BlackList = new HashSet<string>() { { "script" }, { "iframe" }, { "form" }, { "object" }, { "embed" }, { "link" }, { "head" }, { "meta" } }; /// <summary> /// Cleans up an HTML string and removes HTML tags in blacklist /// </summary> /// <param name="html"></param> /// <returns></returns> public static string SanitizeHtml(string html, params string[] blackList) { var sanitizer = new HtmlSanitizer(); if (blackList != null && blackList.Length > 0) { sanitizer.BlackList.Clear(); foreach (string item in blackList) sanitizer.BlackList.Add(item); } return sanitizer.Sanitize(html); } /// <summary> /// Cleans up an HTML string by removing elements /// on the blacklist and all elements that start /// with onXXX . /// </summary> /// <param name="html"></param> /// <returns></returns> public string Sanitize(string html) { var doc = new HtmlDocument(); doc.LoadHtml(html); SanitizeHtmlNode(doc.DocumentNode); //return doc.DocumentNode.WriteTo(); string output = null; // Use an XmlTextWriter to create self-closing tags using (StringWriter sw = new StringWriter()) { XmlWriter writer = new XmlTextWriter(sw); doc.DocumentNode.WriteTo(writer); output = sw.ToString(); // strip off XML doc header if (!string.IsNullOrEmpty(output)) { int at = output.IndexOf("?>"); output = output.Substring(at + 2); } writer.Close(); } doc = null; return output; } private void SanitizeHtmlNode(HtmlNode node) { if (node.NodeType == HtmlNodeType.Element) { // check for blacklist items and remove if (BlackList.Contains(node.Name)) { node.Remove(); return; } // remove CSS Expressions and embedded script links if (node.Name == "style") { if (string.IsNullOrEmpty(node.InnerText)) { if (node.InnerHtml.Contains("expression") || node.InnerHtml.Contains("javascript:")) node.ParentNode.RemoveChild(node); } } // remove script attributes if (node.HasAttributes) { for (int i = node.Attributes.Count - 1; i >= 0; i--) { HtmlAttribute currentAttribute = node.Attributes[i]; var attr = currentAttribute.Name.ToLower(); var val = currentAttribute.Value.ToLower(); span style="background: white; color: green">// remove event handlers if (attr.StartsWith("on")) node.Attributes.Remove(currentAttribute); // remove script links else if ( //(attr == "href" || attr== "src" || attr == "dynsrc" || attr == "lowsrc") && val != null && val.Contains("javascript:")) node.Attributes.Remove(currentAttribute); // Remove CSS Expressions else if (attr == "style" && val != null && val.Contains("expression") || val.Contains("javascript:") || val.Contains("vbscript:")) node.Attributes.Remove(currentAttribute); } } } // Look through child nodes recursively if (node.HasChildNodes) { for (int i = node.ChildNodes.Count - 1; i >= 0; i--) { SanitizeHtmlNode(node.ChildNodes[i]); } } } } } Please note: Use this as a starting point only for your own parsing and review the code for your specific use case! If your needs are less lenient than mine were you can you can make this much stricter by not allowing src and href attributes or CSS links if your HTML doesn't allow it. You can also check links for external URLs and disallow those - lots of options. The code is simple enough to make it easy to extend to fit your use cases more specifically. It's also quite easy to make this code work using a WhiteList approach if you want to go that route. The code above is semi-generic for allowing full featured HTML fragments that only disallow script related content. The Sanitize method walks through each node of the document and then recursively drills into all of its children until the entire document has been traversed. Note that the code here uses an XmlTextWriter to write output - this is done to preserve XHTML style self-closing tags which are otherwise left as non-self-closing tags. The sanitizer code scans for blacklist elements and removes those elements not allowed. Note that the blacklist is configurable either in the instance class as a property or in the static method via the string parameter list. Additionally the code goes through each element's attributes and looks for a host of rules gleaned from some of the XSS cheat sheets listed at the end of the post. Clearly there are a lot more XSS vulnerabilities, but a lot of them apply to ancient browsers (IE6 and versions of Netscape) - many of these glaring holes (like CSS expressions - WTF IE?) have been removed in modern browsers. What a Pain To be honest this is NOT a piece of code that I wanted to write. I think building anything related to XSS is better left to people who have far more knowledge of the topic than I do. Unfortunately, I was unable to find a tool that worked even closely for me, or even provided a working base. For the project I was working on I had no choice and I'm sharing the code here merely as a base line to start with and potentially expand on for specific needs. It's sad that Microsoft Web Protection Library is currently such a train wreck - this is really something that should come from Microsoft as the systems vendor or possibly a third party that provides security tools. Luckily for my application we are dealing with a authenticated and validated users so the user base is fairly well known, and relatively small - this is not a wide open Internet application that's directly public facing. As I mentioned earlier in the post, if I had my way I would simply not allow this type of raw HTML input in the first place, and instead rely on a more controlled HTML input mechanism like MarkDown or even a good HTML Edit control that can provide some limits on what types of input are allowed. Alas in this case I was overridden and we had to go forward and allow *any* raw HTML posted. Sometimes I really feel sad that it's come this far - how many good applications and tools have been thwarted by fear of XSS (or worse) attacks? So many things that could be done *if* we had a more secure browser experience and didn't have to deal with every little script twerp trying to hack into Web pages and obscure browser bugs. So much time wasted building secure apps, so much time wasted by others trying to hack apps… We're a funny species - no other species manages to waste as much time, effort and resources as we humans do :-) Resources Code on GitHub Html Agility Pack XSS Cheat Sheet XSS Prevention Cheat Sheet Microsoft Web Protection Library (AntiXss) StackOverflow Links: http://stackoverflow.com/questions/341872/html-sanitizer-for-net http://blog.stackoverflow.com/2008/06/safe-html-and-xss/ http://code.google.com/p/subsonicforums/source/browse/trunk/SubSonic.Forums.Data/HtmlScrubber.cs?r=61© Rick Strahl, West Wind Technologies, 2005-2012Posted in Security HTML ASP.NET JavaScript Tweet !function(d,s,id){var js,fjs=d.getElementsByTagName(s)[0];if(!d.getElementById(id)){js=d.createElement(s);js.id=id;js.src="//platform.twitter.com/widgets.js";fjs.parentNode.insertBefore(js,fjs);}}(document,"script","twitter-wjs"); (function() { var po = document.createElement('script'); po.type = 'text/javascript'; po.async = true; po.src = 'https://apis.google.com/js/plusone.js'; var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(po, s); })();

Read the article

Using JSON.NET for dynamic JSON parsing

- by Rick Strahl

With the release of ASP.NET Web API as part of .NET 4.5 and MVC 4.0, JSON.NET has effectively pushed out the .NET native serializers to become the default serializer for Web API. JSON.NET is vastly more flexible than the built in DataContractJsonSerializer or the older JavaScript serializer. The DataContractSerializer in particular has been very problematic in the past because it can't deal with untyped objects for serialization - like values of type object, or anonymous types which are quite common these days. The JavaScript Serializer that came before it actually does support non-typed objects for serialization but it can't do anything with untyped data coming in from JavaScript and it's overall model of extensibility was pretty limited (JavaScript Serializer is what MVC uses for JSON responses). JSON.NET provides a robust JSON serializer that has both high level and low level components, supports binary JSON, JSON contracts, Xml to JSON conversion, LINQ to JSON and many, many more features than either of the built in serializers. ASP.NET Web API now uses JSON.NET as its default serializer and is now pulled in as a NuGet dependency into Web API projects, which is great. Dynamic JSON Parsing One of the features that I think is getting ever more important is the ability to serialize and deserialize arbitrary JSON content dynamically - that is without mapping the JSON captured directly into a .NET type as DataContractSerializer or the JavaScript Serializers do. Sometimes it isn't possible to map types due to the differences in languages (think collections, dictionaries etc), and other times you simply don't have the structures in place or don't want to create them to actually import the data. If this topic sounds familiar - you're right! I wrote about dynamic JSON parsing a few months back before JSON.NET was added to Web API and when Web API and the System.Net HttpClient libraries included the System.Json classes like JsonObject and JsonArray. With the inclusion of JSON.NET in Web API these classes are now obsolete and didn't ship with Web API or the client libraries. I re-linked my original post to this one. In this post I'll discus JToken, JObject and JArray which are the dynamic JSON objects that make it very easy to create and retrieve JSON content on the fly without underlying types. Why Dynamic JSON? So, why Dynamic JSON parsing rather than strongly typed parsing? Since applications are interacting more and more with third party services it becomes ever more important to have easy access to those services with easy JSON parsing. Sometimes it just makes lot of sense to pull just a small amount of data out of large JSON document received from a service, because the third party service isn't directly related to your application's logic most of the time - and it makes little sense to map the entire service structure in your application. For example, recently I worked with the Google Maps Places API to return information about businesses close to me (or rather the app's) location. The Google API returns a ton of information that my application had no interest in - all I needed was few values out of the data. Dynamic JSON parsing makes it possible to map this data, without having to map the entire API to a C# data structure. Instead I could pull out the three or four values I needed from the API and directly store it on my business entities that needed to receive the data - no need to map the entire Maps API structure. Getting JSON.NET The easiest way to use JSON.NET is to grab it via NuGet and add it as a reference to your project. You can add it to your project with: PM> Install-Package Newtonsoft.Json From the Package Manager Console or by using Manage NuGet Packages in your project References. As mentioned if you're using ASP.NET Web API or MVC 4 JSON.NET will be automatically added to your project. Alternately you can also go to the CodePlex site and download the latest version including source code: http://json.codeplex.com/ Creating JSON on the fly with JObject and JArray Let's start with creating some JSON on the fly. It's super easy to create a dynamic object structure with any of the JToken derived JSON.NET objects. The most common JToken derived classes you are likely to use are JObject and JArray. JToken implements IDynamicMetaProvider and so uses the dynamic keyword extensively to make it intuitive to create object structures and turn them into JSON via dynamic object syntax. Here's an example of creating a music album structure with child songs using JObject for the base object and songs and JArray for the actual collection of songs:[TestMethod] public void JObjectOutputTest() { // strong typed instance var jsonObject = new JObject(); // you can explicitly add values here using class interface jsonObject.Add("Entered", DateTime.Now); // or cast to dynamic to dynamically add/read properties dynamic album = jsonObject; album.AlbumName = "Dirty Deeds Done Dirt Cheap"; album.Artist = "AC/DC"; album.YearReleased = 1976; album.Songs = new JArray() as dynamic; dynamic song = new JObject(); song.SongName = "Dirty Deeds Done Dirt Cheap"; song.SongLength = "4:11"; album.Songs.Add(song); song = new JObject(); song.SongName = "Love at First Feel"; song.SongLength = "3:10"; album.Songs.Add(song); Console.WriteLine(album.ToString()); } This produces a complete JSON structure: { "Entered": "2012-08-18T13:26:37.7137482-10:00", "AlbumName": "Dirty Deeds Done Dirt Cheap", "Artist": "AC/DC", "YearReleased": 1976, "Songs": [ { "SongName": "Dirty Deeds Done Dirt Cheap", "SongLength": "4:11" }, { "SongName": "Love at First Feel", "SongLength": "3:10" } ] } Notice that JSON.NET does a nice job formatting the JSON, so it's easy to read and paste into blog posts :-). JSON.NET includes a bunch of configuration options that control how JSON is generated. Typically the defaults are just fine, but you can override with the JsonSettings object for most operations. The important thing about this code is that there's no explicit type used for holding the values to serialize to JSON. Rather the JSON.NET objects are the containers that receive the data as I build up my JSON structure dynamically, simply by adding properties. This means this code can be entirely driven at runtime without compile time restraints of structure for the JSON output. Here I use JObject to create a album 'object' and immediately cast it to dynamic. JObject() is kind of similar in behavior to ExpandoObject in that it allows you to add properties by simply assigning to them. Internally, JObject values are stored in pseudo collections of key value pairs that are exposed as properties through the IDynamicMetaObject interface exposed in JSON.NET's JToken base class. For objects the syntax is very clean - you add simple typed values as properties. For objects and arrays you have to explicitly create new JObject or JArray, cast them to dynamic and then add properties and items to them. Always remember though these values are dynamic - which means no Intellisense and no compiler type checking. It's up to you to ensure that the names and values you create are accessed consistently and without typos in your code. Note that you can also access the JObject instance directly (not as dynamic) and get access to the underlying JObject type. This means you can assign properties by string, which can be useful for fully data driven JSON generation from other structures. Below you can see both styles of access next to each other:// strong type instance var jsonObject = new JObject(); // you can explicitly add values here jsonObject.Add("Entered", DateTime.Now); // expando style instance you can just 'use' properties dynamic album = jsonObject; album.AlbumName = "Dirty Deeds Done Dirt Cheap"; JContainer (the base class for JObject and JArray) is a collection so you can also iterate over the properties at runtime easily:foreach (var item in jsonObject) { Console.WriteLine(item.Key + " " + item.Value.ToString()); } The functionality of the JSON objects are very similar to .NET's ExpandObject and if you used it before, you're already familiar with how the dynamic interfaces to the JSON objects works. Importing JSON with JObject.Parse() and JArray.Parse() The JValue structure supports importing JSON via the Parse() and Load() methods which can read JSON data from a string or various streams respectively. Essentially JValue includes the core JSON parsing to turn a JSON string into a collection of JsonValue objects that can be then referenced using familiar dynamic object syntax. Here's a simple example:public void JValueParsingTest() { var jsonString = @"{""Name"":""Rick"",""Company"":""West Wind"", ""Entered"":""2012-03-16T00:03:33.245-10:00""}"; dynamic json = JValue.Parse(jsonString); // values require casting string name = json.Name; string company = json.Company; DateTime entered = json.Entered; Assert.AreEqual(name, "Rick"); Assert.AreEqual(company, "West Wind"); } The JSON string represents an object with three properties which is parsed into a JObject class and cast to dynamic. Once cast to dynamic I can then go ahead and access the object using familiar object syntax. Note that the actual values - json.Name, json.Company, json.Entered - are actually of type JToken and I have to cast them to their appropriate types first before I can do type comparisons as in the Asserts at the end of the test method. This is required because of the way that dynamic types work which can't determine the type based on the method signature of the Assert.AreEqual(object,object) method. I have to either assign the dynamic value to a variable as I did above, or explicitly cast ( (string) json.Name) in the actual method call. The JSON structure can be much more complex than this simple example. Here's another example of an array of albums serialized to JSON and then parsed through with JsonValue():[TestMethod] public void JsonArrayParsingTest() { var jsonString = @"[ { ""Id"": ""b3ec4e5c"", ""AlbumName"": ""Dirty Deeds Done Dirt Cheap"", ""Artist"": ""AC/DC"", ""YearReleased"": 1976, ""Entered"": ""2012-03-16T00:13:12.2810521-10:00"", ""AlbumImageUrl"": ""http://ecx.images-amazon.com/images/I/61kTaH-uZBL._AA115_.jpg"", ""AmazonUrl"": ""http://www.amazon.com/gp/product/…ASIN=B00008BXJ4"", ""Songs"": [ { ""AlbumId"": ""b3ec4e5c"", ""SongName"": ""Dirty Deeds Done Dirt Cheap"", ""SongLength"": ""4:11"" }, { ""AlbumId"": ""b3ec4e5c"", ""SongName"": ""Love at First Feel"", ""SongLength"": ""3:10"" }, { ""AlbumId"": ""b3ec4e5c"", ""SongName"": ""Big Balls"", ""SongLength"": ""2:38"" } ] }, { ""Id"": ""7b919432"", ""AlbumName"": ""End of the Silence"", ""Artist"": ""Henry Rollins Band"", ""YearReleased"": 1992, ""Entered"": ""2012-03-16T00:13:12.2800521-10:00"", ""AlbumImageUrl"": ""http://ecx.images-amazon.com/images/I/51FO3rb1tuL._SL160_AA160_.jpg"", ""AmazonUrl"": ""http://www.amazon.com/End-Silence-Rollins-Band/dp/B0000040OX/ref=sr_1_5?ie=UTF8&qid=1302232195&sr=8-5"", ""Songs"": [ { ""AlbumId"": ""7b919432"", ""SongName"": ""Low Self Opinion"", ""SongLength"": ""5:24"" }, { ""AlbumId"": ""7b919432"", ""SongName"": ""Grip"", ""SongLength"": ""4:51"" } ] } ]"; JArray jsonVal = JArray.Parse(jsonString) as JArray; dynamic albums = jsonVal; foreach (dynamic album in albums) { Console.WriteLine(album.AlbumName + " (" + album.YearReleased.ToString() + ")"); foreach (dynamic song in album.Songs) { Console.WriteLine("\t" + song.SongName); } } Console.WriteLine(albums[0].AlbumName); Console.WriteLine(albums[0].Songs[1].SongName); } JObject and JArray in ASP.NET Web API Of course these types also work in ASP.NET Web API controller methods. If you want you can accept parameters using these object or return them back to the server. The following contrived example receives dynamic JSON input, and then creates a new dynamic JSON object and returns it based on data from the first:[HttpPost] public JObject PostAlbumJObject(JObject jAlbum) { // dynamic input from inbound JSON dynamic album = jAlbum; // create a new JSON object to write out dynamic newAlbum = new JObject(); // Create properties on the new instance // with values from the first newAlbum.AlbumName = album.AlbumName + " New"; newAlbum.NewProperty = "something new"; newAlbum.Songs = new JArray(); foreach (dynamic song in album.Songs) { song.SongName = song.SongName + " New"; newAlbum.Songs.Add(song); } return newAlbum; } The raw POST request to the server looks something like this: POST http://localhost/aspnetwebapi/samples/PostAlbumJObject HTTP/1.1User-Agent: FiddlerContent-type: application/jsonHost: localhostContent-Length: 88 {AlbumName: "Dirty Deeds",Songs:[ { SongName: "Problem Child"},{ SongName: "Squealer"}]} and the output that comes back looks like this: { "AlbumName": "Dirty Deeds New", "NewProperty": "something new", "Songs": [ { "SongName": "Problem Child New" }, { "SongName": "Squealer New" } ]} The original values are echoed back with something extra appended to demonstrate that we're working with a new object. When you receive or return a JObject, JValue, JToken or JArray instance in a Web API method, Web API ignores normal content negotiation and assumes your content is going to be received and returned as JSON, so effectively the parameter and result type explicitly determines the input and output format which is nice. Dynamic to Strong Type Mapping You can also map JObject and JArray instances to a strongly typed object, so you can mix dynamic and static typing in the same piece of code. Using the 2 Album jsonString shown earlier, the code below takes an array of albums and picks out only a single album and casts that album to a static Album instance.[TestMethod] public void JsonParseToStrongTypeTest() { JArray albums = JArray.Parse(jsonString) as JArray; // pick out one album JObject jalbum = albums[0] as JObject; // Copy to a static Album instance Album album = jalbum.ToObject<Album>(); Assert.IsNotNull(album); Assert.AreEqual(album.AlbumName,jalbum.Value<string>("AlbumName")); Assert.IsTrue(album.Songs.Count > 0); } This is pretty damn useful for the scenario I mentioned earlier - you can read a large chunk of JSON and dynamically walk the property hierarchy down to the item you want to access, and then either access the specific item dynamically (as shown earlier) or map a part of the JSON to a strongly typed object. That's very powerful if you think about it - it leaves you in total control to decide what's dynamic and what's static. Strongly typed JSON Parsing With all this talk of dynamic let's not forget that JSON.NET of course also does strongly typed serialization which is drop dead easy. Here's a simple example on how to serialize and deserialize an object with JSON.NET:[TestMethod] public void StronglyTypedSerializationTest() { // Demonstrate deserialization from a raw string var album = new Album() { AlbumName = "Dirty Deeds Done Dirt Cheap", Artist = "AC/DC", Entered = DateTime.Now, YearReleased = 1976, Songs = new List<Song>() { new Song() { SongName = "Dirty Deeds Done Dirt Cheap", SongLength = "4:11" }, new Song() { SongName = "Love at First Feel", SongLength = "3:10" } } }; // serialize to string string json2 = JsonConvert.SerializeObject(album,Formatting.Indented); Console.WriteLine(json2); // make sure we can serialize back var album2 = JsonConvert.DeserializeObject<Album>(json2); Assert.IsNotNull(album2); Assert.IsTrue(album2.AlbumName == "Dirty Deeds Done Dirt Cheap"); Assert.IsTrue(album2.Songs.Count == 2); } JsonConvert is a high level static class that wraps lower level functionality, but you can also use the JsonSerializer class, which allows you to serialize/parse to and from streams. It's a little more work, but gives you a bit more control. The functionality available is easy to discover with Intellisense, and that's good because there's not a lot in the way of documentation that's actually useful. Summary JSON.NET is a pretty complete JSON implementation with lots of different choices for JSON parsing from dynamic parsing to static serialization, to complex querying of JSON objects using LINQ. It's good to see this open source library getting integrated into .NET, and pushing out the old and tired stock .NET parsers so that we finally have a bit more flexibility - and extensibility - in our JSON parsing. Good to go! Resources Sample Test Project http://json.codeplex.com/© Rick Strahl, West Wind Technologies, 2005-2012Posted in .NET Web Api AJAX Tweet !function(d,s,id){var js,fjs=d.getElementsByTagName(s)[0];if(!d.getElementById(id)){js=d.createElement(s);js.id=id;js.src="//platform.twitter.com/widgets.js";fjs.parentNode.insertBefore(js,fjs);}}(document,"script","twitter-wjs"); (function() { var po = document.createElement('script'); po.type = 'text/javascript'; po.async = true; po.src = 'https://apis.google.com/js/plusone.js'; var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(po, s); })();

Read the article

Using jQuery to Insert a New Database Record

- by Stephen Walther

The goal of this blog entry is to explore the easiest way of inserting a new record into a database using jQuery and .NET. I’m going to explore two approaches: using Generic Handlers and using a WCF service (In a future blog entry I’ll take a look at OData and WCF Data Services). Create the ASP.NET Project I’ll start by creating a new empty ASP.NET application with Visual Studio 2010. Select the menu option File, New Project and select the ASP.NET Empty Web Application project template. Setup the Database and Data Model I’ll use my standard MoviesDB.mdf movies database. This database contains one table named Movies that looks like this: I’ll use the ADO.NET Entity Framework to represent my database data: Select the menu option Project, Add New Item and select the ADO.NET Entity Data Model project item. Name the data model MoviesDB.edmx and click the Add button. In the Choose Model Contents step, select Generate from database and click the Next button. In the Choose Your Data Connection step, leave all of the defaults and click the Next button. In the Choose Your Data Objects step, select the Movies table and click the Finish button. Unfortunately, Visual Studio 2010 cannot spell movie correctly :) You need to click on Movy and change the name of the class to Movie. In the Properties window, change the Entity Set Name to Movies. Using a Generic Handler In this section, we’ll use jQuery with an ASP.NET generic handler to insert a new record into the database. A generic handler is similar to an ASP.NET page, but it does not have any of the overhead. It consists of one method named ProcessRequest(). Select the menu option Project, Add New Item and select the Generic Handler project item. Name your new generic handler InsertMovie.ashx and click the Add button. Modify your handler so it looks like Listing 1: Listing 1 – InsertMovie.ashx using System.Web; namespace WebApplication1 { /// <summary> /// Inserts a new movie into the database /// </summary> public class InsertMovie : IHttpHandler { private MoviesDBEntities _dataContext = new MoviesDBEntities(); public void ProcessRequest(HttpContext context) { context.Response.ContentType = "text/plain"; // Extract form fields var title = context.Request["title"]; var director = context.Request["director"]; // Create movie to insert var movieToInsert = new Movie { Title = title, Director = director }; // Save new movie to DB _dataContext.AddToMovies(movieToInsert); _dataContext.SaveChanges(); // Return success context.Response.Write("success"); } public bool IsReusable { get { return true; } } } } In Listing 1, the ProcessRequest() method is used to retrieve a title and director from form parameters. Next, a new Movie is created with the form values. Finally, the new movie is saved to the database and the string “success” is returned. Using jQuery with the Generic Handler We can call the InsertMovie.ashx generic handler from jQuery by using the standard jQuery post() method. The following HTML page illustrates how you can retrieve form field values and post the values to the generic handler: Listing 2 – Default.htm <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <title>Add Movie</title> <script src="http://ajax.microsoft.com/ajax/jquery/jquery-1.4.2.js" type="text/javascript"></script> </head> <body> <form> <label>Title:</label> <input name="title" /> <br /> <label>Director:</label> <input name="director" /> </form> <button id="btnAdd">Add Movie</button> <script type="text/javascript"> $("#btnAdd").click(function () { $.post("InsertMovie.ashx", $("form").serialize(), insertCallback); }); function insertCallback(result) { if (result == "success") { alert("Movie added!"); } else { alert("Could not add movie!"); } } </script> </body> </html> When you open the page in Listing 2 in a web browser, you get a simple HTML form: Notice that the page in Listing 2 includes the jQuery library. The jQuery library is included with the following SCRIPT tag: <script src="http://ajax.microsoft.com/ajax/jquery/jquery-1.4.2.js" type="text/javascript"></script> The jQuery library is included on the Microsoft Ajax CDN so you can always easily include the jQuery library in your applications. You can learn more about the CDN at this website: http://www.asp.net/ajaxLibrary/cdn.ashx When you click the Add Movie button, the jQuery post() method is called to post the form data to the InsertMovie.ashx generic handler. Notice that the form values are serialized into a URL encoded string by calling the jQuery serialize() method. The serialize() method uses the name attribute of form fields and not the id attribute. Notes on this Approach This is a very low-level approach to interacting with .NET through jQuery – but it is simple and it works! And, you don’t need to use any JavaScript libraries in addition to the jQuery library to use this approach. The signature for the jQuery post() callback method looks like this: callback(data, textStatus, XmlHttpRequest) The second parameter, textStatus, returns the HTTP status code from the server. I tried returning different status codes from the generic handler with an eye towards implementing server validation by returning a status code such as 400 Bad Request when validation fails (see http://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html ). I finally figured out that the callback is not invoked when the textStatus has any value other than “success”. Using a WCF Service As an alternative to posting to a generic handler, you can create a WCF service. You create a new WCF service by selecting the menu option Project, Add New Item and selecting the Ajax-enabled WCF Service project item. Name your WCF service InsertMovie.svc and click the Add button. Modify the WCF service so that it looks like Listing 3: Listing 3 – InsertMovie.svc using System.ServiceModel; using System.ServiceModel.Activation; namespace WebApplication1 { [ServiceBehavior(IncludeExceptionDetailInFaults=true)] [ServiceContract(Namespace = "")] [AspNetCompatibilityRequirements(RequirementsMode = AspNetCompatibilityRequirementsMode.Allowed)] public class MovieService { private MoviesDBEntities _dataContext = new MoviesDBEntities(); [OperationContract] public bool Insert(string title, string director) { // Create movie to insert var movieToInsert = new Movie { Title = title, Director = director }; // Save new movie to DB _dataContext.AddToMovies(movieToInsert); _dataContext.SaveChanges(); // Return movie (with primary key) return true; } } } The WCF service in Listing 3 uses the Entity Framework to insert a record into the Movies database table. The service always returns the value true. Notice that the service in Listing 3 includes the following attribute: [ServiceBehavior(IncludeExceptionDetailInFaults=true)] You need to include this attribute if you want to get detailed error information back to the client. When you are building an application, you should always include this attribute. When you are ready to release your application, you should remove this attribute for security reasons. Using jQuery with the WCF Service Calling a WCF service from jQuery requires a little more work than calling a generic handler from jQuery. Here are some good blog posts on some of the issues with using jQuery with WCF: http://encosia.com/2008/06/05/3-mistakes-to-avoid-when-using-jquery-with-aspnet-ajax/ http://encosia.com/2008/03/27/using-jquery-to-consume-aspnet-json-web-services/ http://weblogs.asp.net/scottgu/archive/2007/04/04/json-hijacking-and-how-asp-net-ajax-1-0-mitigates-these-attacks.aspx http://www.west-wind.com/Weblog/posts/896411.aspx http://www.west-wind.com/weblog/posts/324917.aspx http://professionalaspnet.com/archive/tags/WCF/default.aspx The primary requirement when calling WCF from jQuery is that the request use JSON: The request must include a content-type:application/json header. Any parameters included with the request must be JSON encoded. Unfortunately, jQuery does not include a method for serializing JSON (Although, oddly, jQuery does include a parseJSON() method for deserializing JSON). Therefore, we need to use an additional library to handle the JSON serialization. The page in Listing 4 illustrates how you can call a WCF service from jQuery. Listing 4 – Default2.aspx <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <title>Add Movie</title> <script src="http://ajax.microsoft.com/ajax/jquery/jquery-1.4.2.js" type="text/javascript"></script> <script src="Scripts/json2.js" type="text/javascript"></script> </head> <body> <form> <label>Title:</label> <input id="title" /> <br /> <label>Director:</label> <input id="director" /> </form> <button id="btnAdd">Add Movie</button> <script type="text/javascript"> $("#btnAdd").click(function () { // Convert the form into an object var data = { title: $("#title").val(), director: $("#director").val() }; // JSONify the data data = JSON.stringify(data); // Post it $.ajax({ type: "POST", contentType: "application/json; charset=utf-8", url: "MovieService.svc/Insert", data: data, dataType: "json", success: insertCallback }); }); function insertCallback(result) { // unwrap result result = result["d"]; if (result === true) { alert("Movie added!"); } else { alert("Could not add movie!"); } } </script> </body> </html> There are several things to notice about Listing 4. First, notice that the page includes both the jQuery library and Douglas Crockford’s JSON2 library: <script src="Scripts/json2.js" type="text/javascript"></script> You need to include the JSON2 library to serialize the form values into JSON. You can download the JSON2 library from the following location: http://www.json.org/js.html When you click the button to submit the form, the form data is converted into a JavaScript object: // Convert the form into an object var data = { title: $("#title").val(), director: $("#director").val() }; Next, the data is serialized into JSON using the JSON2 library: // JSONify the data var data = JSON.stringify(data); Finally, the form data is posted to the WCF service by calling the jQuery ajax() method: // Post it $.ajax({ type: "POST", contentType: "application/json; charset=utf-8", url: "MovieService.svc/Insert", data: data, dataType: "json", success: insertCallback }); You can’t use the standard jQuery post() method because you must set the content-type of the request to be application/json. Otherwise, the WCF service will reject the request for security reasons. For details, see the Scott Guthrie blog post: http://weblogs.asp.net/scottgu/archive/2007/04/04/json-hijacking-and-how-asp-net-ajax-1-0-mitigates-these-attacks.aspx The insertCallback() method is called when the WCF service returns a response. This method looks like this: function insertCallback(result) { // unwrap result result = result["d"]; if (result === true) { alert("Movie added!"); } else { alert("Could not add movie!"); } } When we called the jQuery ajax() method, we set the dataType to JSON. That causes the jQuery ajax() method to deserialize the response from the WCF service from JSON into a JavaScript object automatically. The following value is passed to the insertCallback method: {"d":true} For security reasons, a WCF service always returns a response with a “d” wrapper. The following line of code removes the “d” wrapper: // unwrap result result = result["d"]; To learn more about the “d” wrapper, I recommend that you read the following blog posts: http://encosia.com/2009/02/10/a-breaking-change-between-versions-of-aspnet-ajax/ http://encosia.com/2009/06/29/never-worry-about-asp-net-ajaxs-d-again/ Summary In this blog entry, I explored two methods of inserting a database record using jQuery and .NET. First, we created a generic handler and called the handler from jQuery. This is a very low-level approach. However, it is a simple approach that works. Next, we looked at how you can call a WCF service using jQuery. This approach required a little more work because you need to serialize objects into JSON. We used the JSON2 library to perform the serialization. In the next blog post, I want to explore how you can use jQuery with OData and WCF Data Services.

Read the article

Adding Client Validation To DataAnnotations DataType Attribute

- by srkirkland

The System.ComponentModel.DataAnnotations namespace contains a validation attribute called DataTypeAttribute, which takes an enum specifying what data type the given property conforms to. Here are a few quick examples: public class DataTypeEntity { [DataType(DataType.Date)] public DateTime DateTime { get; set; } [DataType(DataType.EmailAddress)] public string EmailAddress { get; set; } } .csharpcode, .csharpcode pre { font-size: small; color: black; font-family: consolas, "Courier New", courier, monospace; background-color: #ffffff; /*white-space: pre;*/ } .csharpcode pre { margin: 0em; } .csharpcode .rem { color: #008000; } .csharpcode .kwrd { color: #0000ff; } .csharpcode .str { color: #006080; } .csharpcode .op { color: #0000c0; } .csharpcode .preproc { color: #cc6633; } .csharpcode .asp { background-color: #ffff00; } .csharpcode .html { color: #800000; } .csharpcode .attr { color: #ff0000; } .csharpcode .alt { background-color: #f4f4f4; width: 100%; margin: 0em; } .csharpcode .lnum { color: #606060; } This attribute comes in handy when using ASP.NET MVC, because the type you specify will determine what “template” MVC uses. Thus, for the DateTime property if you create a partial in Views/[loc]/EditorTemplates/Date.ascx (or cshtml for razor), that view will be used to render the property when using any of the Html.EditorFor() methods. One thing that the DataType() validation attribute does not do is any actual validation. To see this, let’s take a look at the EmailAddress property above. It turns out that regardless of the value you provide, the entity will be considered valid: //valid new DataTypeEntity {EmailAddress = "Foo"}; .csharpcode, .csharpcode pre { font-size: small; color: black; font-family: consolas, "Courier New", courier, monospace; background-color: #ffffff; /*white-space: pre;*/ } .csharpcode pre { margin: 0em; } .csharpcode .rem { color: #008000; } .csharpcode .kwrd { color: #0000ff; } .csharpcode .str { color: #006080; } .csharpcode .op { color: #0000c0; } .csharpcode .preproc { color: #cc6633; } .csharpcode .asp { background-color: #ffff00; } .csharpcode .html { color: #800000; } .csharpcode .attr { color: #ff0000; } .csharpcode .alt { background-color: #f4f4f4; width: 100%; margin: 0em; } .csharpcode .lnum { color: #606060; } Hmmm. Since DataType() doesn’t validate, that leaves us with two options: (1) Create our own attributes for each datatype to validate, like [Date], or (2) add validation into the DataType attribute directly. In this post, I will show you how to hookup client-side validation to the existing DataType() attribute for a desired type. From there adding server-side validation would be a breeze and even writing a custom validation attribute would be simple (more on that in future posts). Validation All The Way Down Our goal will be to leave our DataTypeEntity class (from above) untouched, requiring no reference to System.Web.Mvc. Then we will make an ASP.NET MVC project that allows us to create a new DataTypeEntity and hookup automatic client-side date validation using the suggested “out-of-the-box” jquery.validate bits that are included with ASP.NET MVC 3. For simplicity I’m going to focus on the only DateTime field, but the concept is generally the same for any other DataType. Building a DataTypeAttribute Adapter To start we will need to build a new validation adapter that we can register using ASP.NET MVC’s DataAnnotationsModelValidatorProvider.RegisterAdapter() method. This method takes two Type parameters; The first is the attribute we are looking to validate with and the second is an adapter that should subclass System.Web.Mvc.ModelValidator. Since we are extending DataAnnotations we can use the subclass of ModelValidator called DataAnnotationsModelValidator<>. This takes a generic argument of type DataAnnotations.ValidationAttribute, which lucky for us means the DataTypeAttribute will fit in nicely. So starting from there and implementing the required constructor, we get: public class DataTypeAttributeAdapter : DataAnnotationsModelValidator<DataTypeAttribute> { public DataTypeAttributeAdapter(ModelMetadata metadata, ControllerContext context, DataTypeAttribute attribute) : base(metadata, context, attribute) { } } .csharpcode, .csharpcode pre { font-size: small; color: black; font-family: consolas, "Courier New", courier, monospace; background-color: #ffffff; /*white-space: pre;*/ } .csharpcode pre { margin: 0em; } .csharpcode .rem { color: #008000; } .csharpcode .kwrd { color: #0000ff; } .csharpcode .str { color: #006080; } .csharpcode .op { color: #0000c0; } .csharpcode .preproc { color: #cc6633; } .csharpcode .asp { background-color: #ffff00; } .csharpcode .html { color: #800000; } .csharpcode .attr { color: #ff0000; } .csharpcode .alt { background-color: #f4f4f4; width: 100%; margin: 0em; } .csharpcode .lnum { color: #606060; } Now you have a full-fledged validation adapter, although it doesn’t do anything yet. There are two methods you can override to add functionality, IEnumerable<ModelValidationResult> Validate(object container) and IEnumerable<ModelClientValidationRule> GetClientValidationRules(). Adding logic to the server-side Validate() method is pretty straightforward, and for this post I’m going to focus on GetClientValidationRules(). Adding a Client Validation Rule Adding client validation is now incredibly easy because jquery.validate is very powerful and already comes with a ton of validators (including date and regular expressions for our email example). Teamed with the new unobtrusive validation javascript support we can make short work of our ModelClientValidationDateRule: public class ModelClientValidationDateRule : ModelClientValidationRule { public ModelClientValidationDateRule(string errorMessage) { ErrorMessage = errorMessage; ValidationType = "date"; } } .csharpcode, .csharpcode pre { font-size: small; color: black; font-family: consolas, "Courier New", courier, monospace; background-color: #ffffff; /*white-space: pre;*/ } .csharpcode pre { margin: 0em; } .csharpcode .rem { color: #008000; } .csharpcode .kwrd { color: #0000ff; } .csharpcode .str { color: #006080; } .csharpcode .op { color: #0000c0; } .csharpcode .preproc { color: #cc6633; } .csharpcode .asp { background-color: #ffff00; } .csharpcode .html { color: #800000; } .csharpcode .attr { color: #ff0000; } .csharpcode .alt { background-color: #f4f4f4; width: 100%; margin: 0em; } .csharpcode .lnum { color: #606060; } If your validation has additional parameters you can the ValidationParameters IDictionary<string,object> to include them. There is a little bit of conventions magic going on here, but the distilled version is that we are defining a “date” validation type, which will be included as html5 data-* attributes (specifically data-val-date). Then jquery.validate.unobtrusive takes this attribute and basically passes it along to jquery.validate, which knows how to handle date validation. Finishing our DataTypeAttribute Adapter Now that we have a model client validation rule, we can return it in the GetClientValidationRules() method of our DataTypeAttributeAdapter created above. Basically I want to say if DataType.Date was provided, then return the date rule with a given error message (using ValidationAttribute.FormatErrorMessage()). The entire adapter is below: public class DataTypeAttributeAdapter : DataAnnotationsModelValidator<DataTypeAttribute> { public DataTypeAttributeAdapter(ModelMetadata metadata, ControllerContext context, DataTypeAttribute attribute) : base(metadata, context, attribute) { } public override System.Collections.Generic.IEnumerable<ModelClientValidationRule> GetClientValidationRules() { if (Attribute.DataType == DataType.Date) { return new[] { new ModelClientValidationDateRule(Attribute.FormatErrorMessage(Metadata.GetDisplayName())) }; } return base.GetClientValidationRules(); } } .csharpcode, .csharpcode pre { font-size: small; color: black; font-family: consolas, "Courier New", courier, monospace; background-color: #ffffff; /*white-space: pre;*/ } .csharpcode pre { margin: 0em; } .csharpcode .rem { color: #008000; } .csharpcode .kwrd { color: #0000ff; } .csharpcode .str { color: #006080; } .csharpcode .op { color: #0000c0; } .csharpcode .preproc { color: #cc6633; } .csharpcode .asp { background-color: #ffff00; } .csharpcode .html { color: #800000; } .csharpcode .attr { color: #ff0000; } .csharpcode .alt { background-color: #f4f4f4; width: 100%; margin: 0em; } .csharpcode .lnum { color: #606060; } Putting it all together Now that we have an adapter for the DataTypeAttribute, we just need to tell ASP.NET MVC to use it. The easiest way to do this is to use the built in DataAnnotationsModelValidatorProvider by calling RegisterAdapter() in your global.asax startup method. DataAnnotationsModelValidatorProvider.RegisterAdapter(typeof(DataTypeAttribute), typeof(DataTypeAttributeAdapter)); .csharpcode, .csharpcode pre { font-size: small; color: black; font-family: consolas, "Courier New", courier, monospace; background-color: #ffffff; /*white-space: pre;*/ } .csharpcode pre { margin: 0em; } .csharpcode .rem { color: #008000; } .csharpcode .kwrd { color: #0000ff; } .csharpcode .str { color: #006080; } .csharpcode .op { color: #0000c0; } .csharpcode .preproc { color: #cc6633; } .csharpcode .asp { background-color: #ffff00; } .csharpcode .html { color: #800000; } .csharpcode .attr { color: #ff0000; } .csharpcode .alt { background-color: #f4f4f4; width: 100%; margin: 0em; } .csharpcode .lnum { color: #606060; } Show and Tell Let’s see this in action using a clean ASP.NET MVC 3 project. First make sure to reference the jquery, jquery.vaidate and jquery.validate.unobtrusive scripts that you will need for client validation. Next, let’s make a model class (note we are using the same built-in DataType() attribute that comes with System.ComponentModel.DataAnnotations). public class DataTypeEntity { [DataType(DataType.Date, ErrorMessage = "Please enter a valid date (ex: 2/14/2011)")] public DateTime DateTime { get; set; } } .csharpcode, .csharpcode pre { font-size: small; color: black; font-family: consolas, "Courier New", courier, monospace; background-color: #ffffff; /*white-space: pre;*/ } .csharpcode pre { margin: 0em; } .csharpcode .rem { color: #008000; } .csharpcode .kwrd { color: #0000ff; } .csharpcode .str { color: #006080; } .csharpcode .op { color: #0000c0; } .csharpcode .preproc { color: #cc6633; } .csharpcode .asp { background-color: #ffff00; } .csharpcode .html { color: #800000; } .csharpcode .attr { color: #ff0000; } .csharpcode .alt { background-color: #f4f4f4; width: 100%; margin: 0em; } .csharpcode .lnum { color: #606060; } Then we make a create page with a strongly-typed DataTypeEntity model, the form section is shown below (notice we are just using EditorForModel): @using (Html.BeginForm()) { @Html.ValidationSummary(true) <fieldset> <legend>Fields</legend> @Html.EditorForModel() <p> <input type="submit" value="Create" /> </p> </fieldset> } .csharpcode, .csharpcode pre { font-size: small; color: black; font-family: consolas, "Courier New", courier, monospace; background-color: #ffffff; /*white-space: pre;*/ } .csharpcode pre { margin: 0em; } .csharpcode .rem { color: #008000; } .csharpcode .kwrd { color: #0000ff; } .csharpcode .str { color: #006080; } .csharpcode .op { color: #0000c0; } .csharpcode .preproc { color: #cc6633; } .csharpcode .asp { background-color: #ffff00; } .csharpcode .html { color: #800000; } .csharpcode .attr { color: #ff0000; } .csharpcode .alt { background-color: #f4f4f4; width: 100%; margin: 0em; } .csharpcode .lnum { color: #606060; } The final step is to register the adapter in our global.asax file: DataAnnotationsModelValidatorProvider.RegisterAdapter(typeof(DataTypeAttribute), typeof(DataTypeAttributeAdapter)); Now we are ready to run the page: Looking at the datetime field’s html, we see that our adapter added some data-* validation attributes: <input type="text" value="1/1/0001" name="DateTime" id="DateTime" data-val-required="The DateTime field is required." data-val-date="Please enter a valid date (ex: 2/14/2011)" data-val="true" class="text-box single-line valid"> .csharpcode, .csharpcode pre { font-size: small; color: black; font-family: consolas, "Courier New", courier, monospace; background-color: #ffffff; /*white-space: pre;*/ } .csharpcode pre { margin: 0em; } .csharpcode .rem { color: #008000; } .csharpcode .kwrd { color: #0000ff; } .csharpcode .str { color: #006080; } .csharpcode .op { color: #0000c0; } .csharpcode .preproc { color: #cc6633; } .csharpcode .asp { background-color: #ffff00; } .csharpcode .html { color: #800000; } .csharpcode .attr { color: #ff0000; } .csharpcode .alt { background-color: #f4f4f4; width: 100%; margin: 0em; } .csharpcode .lnum { color: #606060; } Here data-val-required was added automatically because DateTime is non-nullable, and data-val-date was added by our validation adapter. Now if we try to add an invalid date: Our custom error message is displayed via client-side validation as soon as we tab out of the box. If we didn’t include a custom validation message, the default DataTypeAttribute “The field {0} is invalid” would have been shown (of course we can change the default as well). Note we did not specify server-side validation, but in this case we don’t have to because an invalid date will cause a server-side error during model binding. Conclusion I really like how easy it is to register new data annotations model validators, whether they are your own or, as in this post, supplements to existing validation attributes. I’m still debating about whether adding the validation directly in the DataType attribute is the correct place to put it versus creating a dedicated “Date” validation attribute, but it’s nice to know either option is available and, as we’ve seen, simple to implement. I’m also working through the nascent stages of an open source project that will create validation attribute extensions to the existing data annotations providers using similar techniques as seen above (examples: Email, Url, EqualTo, Min, Max, CreditCard, etc). Keep an eye on this blog and subscribe to my twitter feed (@srkirkland) if you are interested for announcements.

Read the article

Passing multiple POST parameters to Web API Controller Methods

- by Rick Strahl

ASP.NET Web API introduces a new API for creating REST APIs and making AJAX callbacks to the server. This new API provides a host of new great functionality that unifies many of the features of many of the various AJAX/REST APIs that Microsoft created before it - ASP.NET AJAX, WCF REST specifically - and combines them into a whole more consistent API. Web API addresses many of the concerns that developers had with these older APIs, namely that it was very difficult to build consistent REST style resource APIs easily. While Web API provides many new features and makes many scenarios much easier, a lot of the focus has been on making it easier to build REST compliant APIs that are focused on resource based solutions and HTTP verbs. But RPC style calls that are common with AJAX callbacks in Web applications, have gotten a lot less focus and there are a few scenarios that are not that obvious, especially if you're expecting Web API to provide functionality similar to ASP.NET AJAX style AJAX callbacks. RPC vs. 'Proper' REST RPC style HTTP calls mimic calling a method with parameters and returning a result. Rather than mapping explicit server side resources or 'nouns' RPC calls tend simply map a server side operation, passing in parameters and receiving a typed result where parameters and result values are marshaled over HTTP. Typically RPC calls - like SOAP calls - tend to always be POST operations rather than following HTTP conventions and using the GET/POST/PUT/DELETE etc. verbs to implicitly determine what operation needs to be fired. RPC might not be considered 'cool' anymore, but for typical private AJAX backend operations of a Web site I'd wager that a large percentage of use cases of Web API will fall towards RPC style calls rather than 'proper' REST style APIs. Web applications that have needs for things like live validation against data, filling data based on user inputs, handling small UI updates often don't lend themselves very well to limited HTTP verb usage. It might not be what the cool kids do, but I don't see RPC calls getting replaced by proper REST APIs any time soon. Proper REST has its place - for 'real' API scenarios that manage and publish/share resources, but for more transactional operations RPC seems a better choice and much easier to implement than trying to shoehorn a boatload of endpoint methods into a few HTTP verbs. In any case Web API does a good job of providing both RPC abstraction as well as the HTTP Verb/REST abstraction. RPC works well out of the box, but there are some differences especially if you're coming from ASP.NET AJAX service or WCF Rest when it comes to multiple parameters. Action Routing for RPC Style Calls If you've looked at Web API demos you've probably seen a bunch of examples of how to create HTTP Verb based routing endpoints. Verb based routing essentially maps a controller and then uses HTTP verbs to map the methods that are called in response to HTTP requests. This works great for resource APIs but doesn't work so well when you have many operational methods in a single controller. HTTP Verb routing is limited to the few HTTP verbs available (plus separate method signatures) and - worse than that - you can't easily extend the controller with custom routes or action routing beyond that. Thankfully Web API also supports Action based routing which allows you create RPC style endpoints fairly easily:RouteTable.Routes.MapHttpRoute( name: "AlbumRpcApiAction", routeTemplate: "albums/{action}/{title}", defaults: new { title = RouteParameter.Optional, controller = "AlbumApi", action = "GetAblums" } ); This uses traditional MVC style {action} method routing which is different from the HTTP verb based routing you might have read a bunch about in conjunction with Web API. Action based routing like above lets you specify an end point method in a Web API controller either via the {action} parameter in the route string or via a default value for custom routes. Using routing you can pass multiple parameters either on the route itself or pass parameters on the query string, via ModelBinding or content value binding. For most common scenarios this actually works very well. As long as you are passing either a single complex type via a POST operation, or multiple simple types via query string or POST buffer, there's no issue. But if you need to pass multiple parameters as was easily done with WCF REST or ASP.NET AJAX things are not so obvious. Web API has no issue allowing for single parameter like this:[HttpPost] public string PostAlbum(Album album) { return String.Format("{0} {1:d}", album.AlbumName, album.Entered); } There are actually two ways to call this endpoint: albums/PostAlbum Using the Model Binder with plain POST values In this mechanism you're sending plain urlencoded POST values to the server which the ModelBinder then maps the parameter. Each property value is matched to each matching POST value. This works similar to the way that MVC's ModelBinder works. Here's how you can POST using the ModelBinder and jQuery:$.ajax( { url: "albums/PostAlbum", type: "POST", data: { AlbumName: "Dirty Deeds", Entered: "5/1/2012" }, success: function (result) { alert(result); }, error: function (xhr, status, p3, p4) { var err = "Error " + " " + status + " " + p3; if (xhr.responseText && xhr.responseText[0] == "{") err = JSON.parse(xhr.responseText).message; alert(err); } }); Here's what the POST data looks like for this request: The model binder and it's straight form based POST mechanism is great for posting data directly from HTML pages to model objects. It avoids having to do manual conversions for many operations and is a great boon for AJAX callback requests. Using Web API JSON Formatter The other option is to post data using a JSON string. The process for this is similar except that you create a JavaScript object and serialize it to JSON first.album = { AlbumName: "PowerAge", Entered: new Date(1977,0,1) } $.ajax( { url: "albums/PostAlbum", type: "POST", contentType: "application/json", data: JSON.stringify(album), success: function (result) { alert(result); } }); Here the data is sent using a JSON object rather than form data and the data is JSON encoded over the wire. The trace reveals that the data is sent using plain JSON (Source above), which is a little more efficient since there's no UrlEncoding that occurs. BTW, notice that WebAPI automatically deals with the date. I provided the date as a plain string, rather than a JavaScript date value and the Formatter and ModelBinder both automatically map the date propertly to the Entered DateTime property of the Album object. Passing multiple Parameters to a Web API Controller Single parameters work fine in either of these RPC scenarios and that's to be expected. ModelBinding always works against a single object because it maps a model. But what happens when you want to pass multiple parameters? Consider an API Controller method that has a signature like the following:[HttpPost] public string PostAlbum(Album album, string userToken) Here I'm asking to pass two objects to an RPC method. Is that possible? This used to be fairly straight forward either with WCF REST and ASP.NET AJAX ASMX services, but as far as I can tell this is not directly possible using a POST operation with WebAPI. There a few workarounds that you can use to make this work: Use both POST *and* QueryString Parameters in Conjunction If you have both complex and simple parameters, you can pass simple parameters on the query string. The above would actually work with: /album/PostAlbum?userToken=sekkritt but that's not always possible. In this example it might not be a good idea to pass a user token on the query string though. It also won't work if you need to pass multiple complex objects, since query string values do not support complex type mapping. They only work with simple types. Use a single Object that wraps the two Parameters If you go by service based architecture guidelines every service method should always pass and return a single value only. The input should wrap potentially multiple input parameters and the output should convey status as well as provide the result value. You typically have a xxxRequest and a xxxResponse class that wraps the inputs and outputs. Here's what this method might look like:public PostAlbumResponse PostAlbum(PostAlbumRequest request) { var album = request.Album; var userToken = request.UserToken; return new PostAlbumResponse() { IsSuccess = true, Result = String.Format("{0} {1:d} {2}", album.AlbumName, album.Entered,userToken) }; } with these support types:public class PostAlbumRequest { public Album Album { get; set; } public User User { get; set; } public string UserToken { get; set; } } public class PostAlbumResponse { public string Result { get; set; } public bool IsSuccess { get; set; } public string ErrorMessage { get; set; } } To call this method you now have to assemble these objects on the client and send it up as JSON:var album = { AlbumName: "PowerAge", Entered: "1/1/1977" } var user = { Name: "Rick" } var userToken = "sekkritt"; $.ajax( { url: "samples/PostAlbum", type: "POST", contentType: "application/json", data: JSON.stringify({ Album: album, User: user, UserToken: userToken }), success: function (result) { alert(result.Result); } }); I assemble the individual types first and then combine them in the data: property of the $.ajax() call into the actual object passed to the server, that mimics the structure of PostAlbumRequest server class that has Album, User and UserToken properties. This works well enough but it gets tedious if you have to create Request and Response types for each method signature. If you have common parameters that are always passed (like you always pass an album or usertoken) you might be able to abstract this to use a single object that gets reused for all methods, but this gets confusing too: Overload a single 'parameter' too much and it becomes a nightmare to decipher what your method actual can use. Use JObject to parse multiple Property Values out of an Object If you recall, ASP.NET AJAX and WCF REST used a 'wrapper' object to make default AJAX calls. Rather than directly calling a service you always passed an object which contained properties for each parameter: { parm1: Value, parm2: Value2 } WCF REST/ASP.NET AJAX would then parse this top level property values and map them to the parameters of the endpoint method. This automatic type wrapping functionality is no longer available directly in Web API, but since Web API now uses JSON.NET for it's JSON serializer you can actually simulate that behavior with a little extra code. You can use the JObject class to receive a dynamic JSON result and then using the dynamic cast of JObject to walk through the child objects and even parse them into strongly typed objects. Here's how to do this on the API Controller end:[HttpPost] public string PostAlbum(JObject jsonData) { dynamic json = jsonData; JObject jalbum = json.Album; JObject juser = json.User; string token = json.UserToken; var album = jalbum.ToObject<Album>(); var user = juser.ToObject<User>(); return String.Format("{0} {1} {2}", album.AlbumName, user.Name, token); } This is clearly not as nice as having the parameters passed directly, but it works to allow you to pass multiple parameters and access them using Web API. JObject is JSON.NET's generic object container which sports a nice dynamic interface that allows you to walk through the object's properties using standard 'dot' object syntax. All you have to do is cast the object to dynamic to get access to the property interface of the JSON type. Additionally JObject also allows you to parse JObject instances into strongly typed objects, which enables us here to retrieve the two objects passed as parameters from this jquery code:var album = { AlbumName: "PowerAge", Entered: "1/1/1977" } var user = { Name: "Rick" } var userToken = "sekkritt"; $.ajax( { url: "samples/PostAlbum", type: "POST", contentType: "application/json", data: JSON.stringify({ Album: album, User: user, UserToken: userToken }), success: function (result) { alert(result); } }); Summary ASP.NET Web API brings many new features and many advantages over the older Microsoft AJAX and REST APIs, but realize that some things like passing multiple strongly typed object parameters will work a bit differently. It's not insurmountable, but just knowing what options are available to simulate this behavior is good to know. Now let me say here that it's probably not a good practice to pass a bunch of parameters to an API call. Ideally APIs should be closely factored to accept single parameters or a single content parameter at least along with some identifier parameters that can be passed on the querystring. But saying that doesn't mean that occasionally you don't run into a situation where you have the need to pass several objects to the server and all three of the options I mentioned might have merit in different situations. For now I'm sure the question of how to pass multiple parameters will come up quite a bit from people migrating WCF REST or ASP.NET AJAX code to Web API. At least there are options available to make it work.© Rick Strahl, West Wind Technologies, 2005-2012Posted in Web Api Tweet !function(d,s,id){var js,fjs=d.getElementsByTagName(s)[0];if(!d.getElementById(id)){js=d.createElement(s);js.id=id;js.src="//platform.twitter.com/widgets.js";fjs.parentNode.insertBefore(js,fjs);}}(document,"script","twitter-wjs"); (function() { var po = document.createElement('script'); po.type = 'text/javascript'; po.async = true; po.src = 'https://apis.google.com/js/plusone.js'; var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(po, s); })();

Read the article

Yet Another ASP.NET MVC CRUD Tutorial

- by Ricardo Peres

I know that I have not posted much on MVC, mostly because I don’t use it on my daily life, but since I find it so interesting, and since it is gaining such popularity, I will be talking about it much more. This time, it’s about the most basic of scenarios: CRUD. Although there are several ASP.NET MVC tutorials out there that cover ordinary CRUD operations, I couldn’t find any that would explain how we can have also AJAX, optimistic concurrency control and validation, using Entity Framework Code First, so I set out to write one! I won’t go into explaining what is MVC, Code First or optimistic concurrency control, or AJAX, I assume you are all familiar with these concepts by now. Let’s consider an hypothetical use case, products. For simplicity, we only want to be able to either view a single product or edit this product. First, we need our model: 1: public class Product 2: { 3: public Product() 4: { 5: this.Details = new HashSet<OrderDetail>(); 6: } 7: 8: [Required] 9: [StringLength(50)] 10: public String Name 11: { 12: get; 13: set; 14: } 15: 16: [Key] 17: [ScaffoldColumn(false)] 18: [DatabaseGenerated(DatabaseGeneratedOption.Identity)] 19: public Int32 ProductId 20: { 21: get; 22: set; 23: } 24: 25: [Required] 26: [Range(1, 100)] 27: public Decimal Price 28: { 29: get; 30: set; 31: } 32: 33: public virtual ISet<OrderDetail> Details 34: { 35: get; 36: protected set; 37: } 38: 39: [Timestamp] 40: [ScaffoldColumn(false)] 41: public Byte[] RowVersion 42: { 43: get; 44: set; 45: } 46: } Keep in mind that this is a simple scenario. Let’s see what we have: A class Product, that maps to a product record on the database; A product has a required (RequiredAttribute) Name property which can contain up to 50 characters (StringLengthAttribute); The product’s Price must be a decimal value between 1 and 100 (RangeAttribute); It contains a set of order details, for each time that it has been ordered, which we will not talk about (Details); The record’s primary key (mapped to property ProductId) comes from a SQL Server IDENTITY column generated by the database (KeyAttribute, DatabaseGeneratedAttribute); The table uses a SQL Server ROWVERSION (previously known as TIMESTAMP) column for optimistic concurrency control mapped to property RowVersion (TimestampAttribute). Then we will need a controller for viewing product details, which will located on folder ~/Controllers under the name ProductController: 1: public class ProductController : Controller 2: { 3: [HttpGet] 4: public ViewResult Get(Int32 id = 0) 5: { 6: if (id != 0) 7: { 8: using (ProductContext ctx = new ProductContext()) 9: { 10: return (this.View("Single", ctx.Products.Find(id) ?? new Product())); 11: } 12: } 13: else 14: { 15: return (this.View("Single", new Product())); 16: } 17: } 18: } If the requested product does not exist, or one was not requested at all, one with default values will be returned. I am using a view named Single to display the product’s details, more on that later. As you can see, it delegates the loading of products to an Entity Framework context, which is defined as: 1: public class ProductContext: DbContext 2: { 3: public DbSet<Product> Products 4: { 5: get; 6: set; 7: } 8: } Like I said before, I’ll keep it simple for now, only aggregate root Product is available. The controller will use the standard routes defined by the Visual Studio ASP.NET MVC 3 template: 1: routes.MapRoute( 2: "Default", // Route name 3: "{controller}/{action}/{id}", // URL with parameters 4: new { controller = "Home", action = "Index", id = UrlParameter.Optional } // Parameter defaults 5: ); Next, we need a view for displaying the product details, let’s call it Single, and have it located under ~/Views/Product: 1: <%@ Page Language="C#" Inherits="System.Web.Mvc.ViewPage<Product>" %> 2: <!DOCTYPE html> 3: 4: <html> 5: <head runat="server"> 6: <title>Product</title> 7: <script src="/Scripts/jquery-1.7.2.js" type="text/javascript"></script> 1: 2: <script src="/Scripts/jquery-ui-1.8.19.js" type="text/javascript"> 1: </script> 2: <script src="/Scripts/jquery.unobtrusive-ajax.js" type="text/javascript"> 1: </script> 2: <script src="/Scripts/jquery.validate.js" type="text/javascript"> 1: </script> 2: <script src="/Scripts/jquery.validate.unobtrusive.js" type="text/javascript"> 1: </script> 2: <script type="text/javascript"> 3: function onFailure(error) 4: { 5: } 6: 7: function onComplete(ctx) 8: { 9: } 10: 11: </script> 8: </head> 9: <body> 10: <div> 11: <% 1: : this.Html.ValidationSummary(false) %> 12: <% 1: using (this.Ajax.BeginForm("Edit", "Product", new AjaxOptions{ HttpMethod = FormMethod.Post.ToString(), OnSuccess = "onSuccess", OnFailure = "onFailure" })) { %> 13: <% 1: : this.Html.EditorForModel() %> 14: <input type="submit" name="submit" value="Submit" /> 15: <% 1: } %> 16: </div> 17: </body> 18: </html> Yes… I am using ASPX syntax… sorry about that! I implemented an editor template for the Product class, which must be located on the ~/Views/Shared/EditorTemplates folder as file Product.ascx: 1: <%@ Control Language="C#" Inherits="System.Web.Mvc.ViewUserControl<Product>" %> 2: <div> 3: <%: this.Html.HiddenFor(model => model.ProductId) %> 4: <%: this.Html.HiddenFor(model => model.RowVersion) %> 5: <fieldset> 6: <legend>Product</legend> 7: <div class="editor-label"> 8: <%: this.Html.LabelFor(model => model.Name) %> 9: </div> 10: <div class="editor-field"> 11: <%: this.Html.TextBoxFor(model => model.Name) %> 12: <%: this.Html.ValidationMessageFor(model => model.Name) %> 13: </div> 14: <div class="editor-label"> 15: <%= this.Html.LabelFor(model => model.Price) %> 16: </div> 17: <div class="editor-field"> 18: <%= this.Html.TextBoxFor(model => model.Price) %> 19: <%: this.Html.ValidationMessageFor(model => model.Price) %> 20: </div> 21: </fieldset> 22: </div> One thing you’ll notice is, I am including both the ProductId and the RowVersion properties as hidden fields; they will come handy later or, so that we know what product and version we are editing. The other thing is the included JavaScript files: jQuery, jQuery UI and unobtrusive validations. Also, I am not using the Content extension method for translating relative URLs, because that way I would lose JavaScript intellisense for jQuery functions. OK, so, at this moment, I want to add support for AJAX and optimistic concurrency control. So I write a controller method like this: 1: [HttpPost] 2: [AjaxOnly] 3: [Authorize] 4: public JsonResult Edit(Product product) 5: { 6: if (this.TryValidateModel(product) == true) 7: { 8: using (BlogContext ctx = new BlogContext()) 9: { 10: Boolean success = false; 11: 12: ctx.Entry(product).State = (product.ProductId == 0) ? EntityState.Added : EntityState.Modified; 13: 14: try 15: { 16: success = (ctx.SaveChanges() == 1); 17: } 18: catch (DbUpdateConcurrencyException) 19: { 20: ctx.Entry(product).Reload(); 21: } 22: 23: return (this.Json(new { Success = success, ProductId = product.ProductId, RowVersion = Convert.ToBase64String(product.RowVersion) })); 24: } 25: } 26: else 27: { 28: return (this.Json(new { Success = false, ProductId = 0, RowVersion = String.Empty })); 29: } 30: } So, this method is only valid for HTTP POST requests (HttpPost), coming from AJAX (AjaxOnly, from MVC Futures), and from authenticated users (Authorize). It returns a JSON object, which is what you would normally use for AJAX requests, containing three properties: Success: a boolean flag; RowVersion: the current version of the ROWVERSION column as a Base-64 string; ProductId: the inserted product id, as coming from the database. If the product is new, it will be inserted into the database, and its primary key will be returned into the ProductId property. Success will be set to true; If a DbUpdateConcurrencyException occurs, it means that the value in the RowVersion property does not match the current ROWVERSION column value on the database, so the record must have been modified between the time that the page was loaded and the time we attempted to save the product. In this case, the controller just gets the new value from the database and returns it in the JSON object; Success will be false. Otherwise, it will be updated, and Success, ProductId and RowVersion will all have their values set accordingly. So let’s see how we can react to these situations on the client side. Specifically, we want to deal with these situations: The user is not logged in when the update/create request is made, perhaps the cookie expired; The optimistic concurrency check failed; All went well. So, let’s change our view: 1: <%@ Page Language="C#" Inherits="System.Web.Mvc.ViewPage<Product>" %> 2: <%@ Import Namespace="System.Web.Security" %> 3: 4: <!DOCTYPE html> 5: 6: <html> 7: <head runat="server"> 8: <title>Product</title> 9: <script src="/Scripts/jquery-1.7.2.js" type="text/javascript"></script> 1: 2: <script src="/Scripts/jquery-ui-1.8.19.js" type="text/javascript"> 1: </script> 2: <script src="/Scripts/jquery.unobtrusive-ajax.js" type="text/javascript"> 1: </script> 2: <script src="/Scripts/jquery.validate.js" type="text/javascript"> 1: </script> 2: <script src="/Scripts/jquery.validate.unobtrusive.js" type="text/javascript"> 1: </script> 2: <script type="text/javascript"> 3: function onFailure(error) 4: { 5: window.alert('An error occurred: ' + error); 6: } 7: 8: function onSuccess(ctx) 9: { 10: if (typeof (ctx.Success) != 'undefined') 11: { 12: $('input#ProductId').val(ctx.ProductId); 13: $('input#RowVersion').val(ctx.RowVersion); 14: 15: if (ctx.Success == false) 16: { 17: window.alert('An error occurred while updating the entity: it may have been modified by third parties. Please try again.'); 18: } 19: else 20: { 21: window.alert('Saved successfully'); 22: } 23: } 24: else 25: { 26: if (window.confirm('Not logged in. Login now?') == true) 27: { 28: document.location.href = '<%: FormsAuthentication.LoginUrl %>?ReturnURL=' + document.location.pathname; 29: } 30: } 31: } 32: 33: </script> 10: </head> 11: <body> 12: <div> 13: <% 1: : this.Html.ValidationSummary(false) %> 14: <% 1: using (this.Ajax.BeginForm("Edit", "Product", new AjaxOptions{ HttpMethod = FormMethod.Post.ToString(), OnSuccess = "onSuccess", OnFailure = "onFailure" })) { %> 15: <% 1: : this.Html.EditorForModel() %> 16: <input type="submit" name="submit" value="Submit" /> 17: <% 1: } %> 18: </div> 19: </body> 20: </html> The implementation of the onSuccess function first checks if the response contains a Success property, if not, the most likely cause is the request was redirected to the login page (using Forms Authentication), because it wasn’t authenticated, so we navigate there as well, keeping the reference to the current page. It then saves the current values of the ProductId and RowVersion properties to their respective hidden fields. They will be sent on each successive post and will be used in determining if the request is for adding a new product or to updating an existing one. The only thing missing is the ability to insert a new product, after inserting/editing an existing one, which can be easily achieved using this snippet: 1: <input type="button" value="New" onclick="$('input#ProductId').val('');$('input#RowVersion').val('');"/> And that’s it.

Search Results

Search found 34668 results on 1387 pages for 'return'.

Page 341/1387 | < Previous Page | 337 338 339 340 341 342 343 344 345 346 347 348 | Next Page >

- by Stuart Blackler

- by Ragekit

- by RedShft

- by Laurent Bugnion

- by Your DisplayName here!

- by T

- by Irfan Dahir

- by Cherry

- by goldensun player

- by Ragekit

- by T

- by Tim Dexter

- by user69514

- by erlord

- by MattDiPasquale

- by mean

- by IngeniousHax

- by bluepixel

- by Julian Fernandes

- by Rick Strahl

- by Rick Strahl

- by Stephen Walther

- by srkirkland

- by Rick Strahl

- by Ricardo Peres

< Previous Page | 337 338 339 340 341 342 343 344 345 346 347 348 | Next Page >