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  • PHP setting cookies in a child class

    - by steve
    I am writing a custom session handler and for the life of me I cannot get a cookie to set in it. I'm not outputting anything to the browser before I set the cookie but it still doesn't work. Its killing me. The cookie will set if I set it in the script I define and call on the session handler with. If necessary I will post code. Any ideas people? <?php /* require the needed classes comment out what is not needed */ require_once("classes/sessionmanager.php"); require_once("classes/template.php"); require_once("classes/database.php"); $title=" "; //titlebar of the web browser $description=" "; $keywords=" "; //meta keywords $menutype="default"; //default or customer, customer is elevated $pagetitle="dflsfsf "; //title of the webpage $pagebody=" "; //body of the webpage $template=template::def_instance(); $database=database::def_instance(); $session=sessionmanager::def_instance(); $session->sessions(); session_start(); ?> and this is the one that actually sets the cookie for the session function write($session_id,$session_data) { $session_id = mysql_real_escape_string($session_id); $session_data = mysql_real_escape_string(serialize($session_data)); $expires = time() + 3600; $user_ip = $_SERVER['REMOTE_ADDR']; $bol = FALSE; $time = time(); $newsession = FALSE; $auth = FALSE; $query = "SELECT * FROM 'sessions' WHERE 'expires' > '$time'"; $sessions_result = $this->query($query); $newsession = $this->newsession_check($session_id,$sessions_result); while($sessions_array = mysql_fetch_array($sessions_result) AND $auth = FALSE) { $session_array = $this->strip($session_array); $auth = $this->auth_check($session_array,$session_id); } /* this is an authentic session. build queries and update it */ if($auth = TRUE AND $newsession = FALSE) { $session_data = mysql_real_escape_string($session_data); $update_query1 = "UPDATE 'sessions' SET 'user_ip' = '$user_ip' WHERE 'session_id' = '$session_id'"; $update_query2 = "UPDATE 'sessions' SET 'data' = '$session_data' WHERE 'session_id = '$session_id'"; $update_query3 = "UPDATE 'sessions' SET 'expires' = '$expires' WHERE 'session_id' = '$session_id'"; $this->query($update_query1); $this->query($update_query2); $this->query($update_query3); $bol = TRUE; } elseif($newsession = TRUE) { /* this is a new session, build and create it */ $random_number = $this->obtain_random(); $cookieval = hash("sha512",$random_number); setcookie("rndn",$cookieval); $query = "INSERT INTO sessions VALUES('$session_id','0','$user_ip','$random_number','$session_data','$expires')"; $this->query($query); //echo $cookieval."this is the cookie <<"; $bol = TRUE; } return $bol; }

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  • c++ fread changing fgetpos strangely

    - by Steve
    If I run: FILE* pFile = fopen("c:\\08.bin", "r"); fpos_t pos; char buf[5000]; int ret = fread(&buf, 1, 9, pFile); fgetpos(pFile, &pos); I get ret = 9 and pos = 9. However if I run FILE* pFile = fopen("c:\\08.bin", "r"); fpos_t pos; char buf[5000]; int ret = fread(&buf, 1, 10, pFile); fgetpos(pFile, &pos); ret = 10 as expected, but pos = 11! How can this be?

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  • How many variables is to many when storing in _SESSION?

    - by steve
    Hi - I'm looking for an idea of best practices here. I have a web based application that has a number of hooks into other systems. Let's say 5, and each of these 5 systems has a number of flags to determine different settings the user has selected in said systems, lets say 5 settings per system (so 5*5). I am storing the status of these settings in the user sesion variables and was wondering is that a sufficient way of doing it? I'm learning php as I go along so not sure about any pitfalls that this could run me into!

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  • PrintingPermissionLevel, SafePrinting, and restrictions

    - by Steve Cooper
    There is a PrintingPermission attribute in the framework which takes a PrintingPermissionLevel enumeration with one of these values; NoPrinting: Prevents access to printers. NoPrinting is a subset of SafePrinting. SafePrinting: Provides printing only from a restricted dialog box. SafePrinting is a subset of DefaultPrinting. DefaultPrinting: Provides printing programmatically to the default printer, along with safe printing through semirestricted dialog box. DefaultPrinting is a subset of AllPrinting. AllPrinting: Provides full access to all printers. The documentation is really sparse, and I wondered if anyone can tell me more about the SafePrinting option. What does the documentation mean when it says "Provides printing only from a restricted dialog box." I have no idea what this means. Can anyone shed any light? This subject is touched in the MS certification 70-505: TS: Microsoft .NET Framework 3.5, Windows Forms Application Development and so I'm keen to find out more.

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  • Delphi and Outlook TaskItem: How to know if DueDate is empty?

    - by Steve
    This seems like a no-brainer but I couldn't find anything on it. How do I detect if a date variant in Outlook is "empty"? For example TaskItem.DueDate - the duedate is not necessarily filled. If it's not filled Outlook returns "4501.01.01." - I can test for this value, but this just doesn't seem "elegant" enough. Thanks!

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  • Is there an efficient algorithm to distribute resources in a way that both avoids conflict and allows bias?

    - by Steve V.
    Background (Skip this if you only care about the algorithm) At the university where I work, one of the biggest hassles in our department is classroom scheduling. For illustration purposes and to lay out the scope of the problem, here's how we do scheduling now: Professors give us a list of the classes they're teaching with the time slots they'd prefer to teach, ranked in order of priority (most desired to least desired). Administration gives us a list of the rooms we may assign along with the times those rooms are available for our department's use. We start assigning professors to rooms trying (at first) to take into account the preferences of the various professors. Inevitably, conflicts arise, professors start asking for changes, and the plan falls to pieces somewhere around professor number 30, at which point we start assigning rooms basically wherever we can fit them in, crumpled pieces of paper are everywhere, and nobody's happy. (If you've ever wondered why your class was at 9.30 in the morning on Thursday but 4 pm every other day, now you know) I have been asked to quietly investigate whether software could do this more optimally. The Actual Question Is there an algorithm to efficiently schedule a set of resources such that the following criteria are met: The algorithm must never assign two professors to the same room at the same time. The task is not complete until every professor has been assigned a room / time. The algorithm need not worry about having too many professors for the amount of time slots available. (We're not that well funded.) As much as is possible the algorithm should respect the scheduling preferences of the individual professors. I feel like I can't be the first one to ask this. Is there a efficient algorithm for this, or is this the sort of problem that can only be brute-forced?

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  • How to determine expected license serial number by viewing an EXE File?

    - by Steve
    I was attempting to install an exe that requires a serial number before the install, which the vendor has not provided to us yet. This got my wheels turning about whether there is any information that can be gained from viewing an exe using a hex editor/VI/etc? Using VI to view an exe, I can see some sections of plain text, but it is difficult to determine what it refers to without any context around it. Is it possible to determine any information by reading an exe? Thanks

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  • Can ASP.NET be configured to run as an administrator when UAC is enabled?

    - by Steve Eisner
    I can't seem to find any information that indicates whether ASP.NET can be configured (through web.config or maybe machine.config) to run as a real administrator on a machine with UAC enabled. By this I mean, even if you set it to impersonate an Administrator account, UAC will disable that account's ability to act as an Administrator by returning a token set that hides the administrator role. For any checks such as IsInRole, the running account is effectively not an administrator at all. So ... Let's say I want to ignore all good advice and just go ahead and run a web app on Vista with administrator permissions. Is it even possible? Alternatives welcome. (Core reason for needing administrator privileges: to stop or start services that are running on that machine.)

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  • Start two processes and connect them with a pipe in Delphi

    - by Steve
    I need to launch two external programs in my program and connect the STDOUT of the first one to the STDIN of the second program. How can you achieve this in Delphi (RAD Studio 2009, if it matters)? I'm operating in Windows environment. As a commandline command my situation would look something like this: dumpdata.exe | encrypt.exe "mydata.dat"

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  • Match two mysql cols on alpha chars (ignoring numbers in same field)

    - by Steve
    I was wondering if you know of a way I could filter a mysql query to only show the ‘alpha’ characters from a specific field So something like SELECT col1, col2, **alpha_chars_only(col3)** FROM table I am not looking to update only select. I have been looking at some regex but without much luck most of what turned up was searching for fields that only contain ‘alpha’ chars. In a much watered down context... I have col1 which contains abc and col two contains abc123 and I want to match them on alpha chars only. There can be any number of letters or numbers. Any help very much wel come

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  • Ajax using Rails

    - by Steve
    Hi, I have a favourite and un-favourite functionality in my application and I am using jQuery. This functionality works partially. The page gets loaded, and when I click the 'favourite' button(it is inside add_favourite_div element), it sends a XHR request and the post is set as favourite. Then a new div called "remove_favourite_div" replaces its place.Now when I click the remove favourite(which is part of remove_favourite_div), it sends a normal http request inside of xhr. The structure when the page gets loaded first time <div id="favourite"> <div id="add_favourite_div"> <form method="post" id="add_favourite" action="/viewpost/add_favourite"> <div style="margin: 0pt; padding: 0pt; display: inline;"> <input type="hidden" value="w873BgYHLxQmadUalzMRUC+1ql4AtP3U7f78dT8x9ho=" name="authenticity_token"> </div> <input type="hidden" value="3" name="Favourite[post_id]" id="Favourite_place_id"> <input type="hidden" value="2" name="Favourite[user_id]" id="Favourite_user_id"> <input type="submit" value="Favourite" name="commit"><br> </form> </div> </div> DOM after clicking on the unfavourite button <div id="favourite"> <div id="remove_favourite_div"> <form method="post" id="remove_favourite" action="/viewpost/remove_favourite"> <div style="margin: 0pt; padding: 0pt; display: inline;"> <input type="hidden" value="w873BgYHLxQmadUalzMRUC+1ql4AtP3U7f78dT8x9ho=" name="authenticity_token"> </div> <input type="hidden" value="3" name="Favourite[post_id]" id="Favourite_place_id"> <input type="hidden" value="2" name="Favourite[user_id]" id="Favourite_user_id"> <input type="submit" value="UnFavourite" name="commit"><br> </form> </div> </div> In my application.js, I have two functions to trigger the xhr request $("#add_favourite").submit(function(){ alert("add favourite"); action = $(this).attr("action") $.post(action,$(this).serialize(),null,"script"); return false; }); $("#remove_favourite").submit(function(){ alert("remove favourite"); action = $(this).attr("action"); $.post(action,$(this).serialize(),null,"script"); return false; }); Here, when the post is initially not a favourite, favourite button is displayed and when i clicked on the button, $("#add_favourite").submit gets called and unfavourite form is displayed correctly, but now when I click on the un-favourite button, $("#remove_favourite").submit does not get called. The whole scenario is true in both ways, I mean favourite-Unfavourite and Unfavourite-favourite Can someone please help me to solve this Thanks

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  • How to avoid raising an event to a closed form?

    - by Steve Dignan
    I'm having trouble handling the scenario whereby an event is being raised to a closed form and was hoping to get some help. Scenario (see below code for reference): Form1 opens Form2 Form1 subscribes to an event on Form2 (let's call the event FormAction) Form1 is closed and Form2 remains open Form2 raises the FormAction event In Form1.form2_FormAction, why does this return a reference to Form1 but button1.Parent returns null? Shouldn't they both return the same reference? If we were to omit step 3, both this and button1.Parent return the same reference. Here's the code I'm using... Form1: public partial class Form1 : Form { public Form1 () { InitializeComponent(); } private void button1_Click ( object sender , EventArgs e ) { // Create instance of Form2 and subscribe to the FormAction event var form2 = new Form2(); form2.FormAction += form2_FormAction; form2.Show(); } private void form2_FormAction ( object o ) { // Always returns reference to Form1 var form = this; // If Form1 is open, button1.Parent is equal to form/this // If Form1 is closed, button1.Parent is null var parent = button1.Parent; } } Form2: public partial class Form2 : Form { public Form2 () { InitializeComponent(); } public delegate void FormActionHandler ( object o ); public event FormActionHandler FormAction = delegate { }; private void button1_Click ( object sender , EventArgs e ) { FormAction( "Button clicked." ); } } Ideally, I would like to avoid raising events to closed/disposed forms (which I'm not sure is possible) or find a clean way of handling this in the caller (in this case, Form1). Any help is appreciated.

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  • PHP line break with file_put_contents()

    - by steve-o
    I can't seem to figure out why the following code doesn't produce a new line in my text file - neither does using \n etc either - any ideas what could be wrong? $data = $name . ' | ' . $_POST['comment'] . PHP_EOL; //write to file $f = file_put_contents('posts.txt', $data, FILE_APPEND);

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  • laying out images in UIScrollView automatically

    - by Steve Jabs
    i have a list of images retrieved from xml i want to populate them to a uiscrollview in an order such that it will look like this. 1 2 3 4 5 6 7 8 9 10 if there is only 10 images it will just stop here. right now my current code is this for (int i = 3; i<[appDelegate.ZensaiALLitems count]-1; i++) { UIButton *zenbutton2 =[UIButton buttonWithType:UIButtonTypeCustom]; Items *ZensaiPLUitems = [appDelegate.ZensaiALLitems objectAtIndex:i]; NSURL *ZensaiimageSmallURL = [NSURL URLWithString:ZensaiPLUitems.ZensaiimageSmallURL]; NSLog(@"FVGFVEFV :%@", ZensaiPLUitems.ZensaiimageSmallURL); NSData *simageData = [NSData dataWithContentsOfURL:ZensaiimageSmallURL]; UIImage *itemSmallimage = [UIImage imageWithData:simageData]; [zenbutton2 setImage:itemSmallimage forState:UIControlStateNormal]; zenbutton2.frame=CGRectMake( (i*110+i*110)-660 , 300, 200, 250); [zenbutton2 addTarget:self action:@selector(ShowNextZensaiPage) forControlEvents:UIControlEventTouchUpInside]; [scrollView addSubview:zenbutton2]; } notice the CGRectMake , i have to manually assign fixed values to position them. Is there any way to populate them out without manually assigning. for e.g the images will automatically go down a position once the first row has 3 images and subsequently for the rest.

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  • Why doesn't BlackBerry let me click on this link?

    - by Steve N
    This is a link in an HTML email.. Other links in this email work, but this one does not get recognized in a BlackBerry as a link, so you can't click on it. Does anyone know why that might be? Here's the markup for it: <a title="Continue" style="display: block; width:200px; border:1px solid #336699; text-align: center; padding-top:5px; padding-bottom:5px; font-size:14px; font-family: Arial, Sans-Serif; color:#336699; font-weight:bold; text-decoration: none;" href="https://www.mydomain.com/mypage.aspx?id=8430650">Continue ››</a>

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  • boost variant static_visitor problem picking correct function

    - by Steve
    I'm sure I'm having a problem with template resolution here, but I'm not sure why I'm having the problem. I have a static visitor I'm passing to boost variant where i've had to do template specialization for certain cases. The case for everything except for MyClass should throw in the static_visitor below. Unfortunately, when the visitor is applied to pull a MyClass out, it selects the most generic case rather than the exact match. I would type each case explicitly, but that will be rather long. So, why is the compiler resolving the most generic case over the exact match, and is there anyway to fix it template<> class CastVisitor<MyClass>:public boost::static_visitor<MyClass> { public: template<typename U> MyClass operator()(const U & i) const { throw std::exception("Unable to cast"); } MyClass operator()(const MyClass& i) { return i; } };

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  • How can I use multithreading in a Windows Forms application to update a progress bar?

    - by Steve Syfuhs
    There are two objects. The Windows Form with a button and a progress bar, and another object that handles an algorithm. In the algorithm object there is an event, and a property. The event is ProgressChanged, and the property is Progress (which is an int). In the calling window, the button starts off a set of steps in the algorithm object. As each step (or substeps) occurs, the ProgressChanged event fires, and in the window there is an event handler that essentially increments the progress bar relative to the Progress property. The problem I am running into is that because the algorithm has a possibility (and high liklihood) of running a relatively long time, I need to move it into it's own background thread and push the event back up to the window. My issue is that I'm not completely sure what I'm doing when it comes to multi-threading. I've looked at Control.Invoke and I'm a little lost. Can someone point me in the right direction?

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  • Rails create_table query

    - by Steve
    Hi, I am a beginner in Rails. In the following code,there is an id which is set as false. What's the meaning of it? class CreateCoursesStudents < ActiveRecord::Migration def self.up create_table :courses_students, :id => false do |t| t.integer :course_id, :null => false t.integer :student_id, :null => false end # Add index to speed up looking up the connection, and ensure # we only enrol a student into each course once add_index :courses_students, [:course_id, :student_id], :unique => true end def self.down remove_index :courses_students, :column => [:course_id, :student_id] drop_table :courses_students end end Thanks

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  • HTML/CSS Rendering to Image

    - by Steve
    Is there a library or tool that can take an html page and some css, and then render an image? I would like to define some templates server side using html code snippets, and some CSS to define the layout. Then using the template and CSS, I would like to essentially render an image of how this would display in a browser, and pass the image back to the client. Thanks.

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  • Using jQuery to find a substring

    - by Steve
    Say you have a string: "The ABC cow jumped over XYZ the moon" and you want to use jQuery to get the substring between the "ABC" and "XYZ", how would you do this? The substring should be "cow jumped over". Many thanks!

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  • How can one use multi threading in php applications

    - by Steve Obbayi
    Is there a realistic way of implementing a multi-threaded model in php whether truly or just simulating it. Some time back it was suggested that you can force the operating system to load another instance of the php executable and handle other simultaneous processes. The problem with this is that when the php code finished executing the php instance remains in memory because there is no way to kill it from within php. so if you are simulating several threads you can imagine whats going to happen. So am still looking for a way multi-threading can be done or simulated effectively from within php. Any ideas?

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  • Adding Another Parameter to my Custom jQuery Gallery

    - by steve
    My website currently uses a custom jQuery gallery system that I've developed... it works well, but I want to add one capability that I can't seem to figure out. I want the user to, instead of having to click each thumbnail, also be able to click the full image itself to advance in the gallery. Working gallery is here: http://www.studioimbrue.com The code is as follows: $('.thumbscontainer ul li a').click(function() { var li_index = $(this).parents('ul').children('li').index($(this).parent("li"));    $(this).parents('.thumbscontainer').parent().find('.captions ul li').fadeOut(); $(this).parents('.thumbscontainer').parent().find('.captions ul li:eq('+li_index+')').fadeIn(); }); }); and the gallery HTML markup is as follows: <div class="container"> <div class="captions" id="usbdrive"> <ul> <li style="display:block"> <img src="images/portfolio/usbdrive/1.jpg" /> <div class="caption"> <span class='projecttitle'>Super Talent USB Drive Package.</span> A fancy, lavish package designed for Super Talent's specialty USB drive. It was known as the world's smallest flash drive <span class="amp">&amp;</span> it is dipped in gold! </div> </li> <li> <img src="images/portfolio/usbdrive/2.jpg" /> </li> <li> <img src="images/portfolio/usbdrive/3.jpg" /> </li> <li> <img src="images/portfolio/usbdrive/4.jpg" /> </li> <li> <img src="images/portfolio/usbdrive/5.jpg" /> </li> </ul> </div> <div class="thumbscontainer verticalthumbs"> <ul> <li><a href="javascript:void(0);" name="usbdrive1"><img src="images/portfolio/usbdrive/1.jpg" /></a></li> <li><a href="javascript:void(0);" name="usbdrive2"><img src="images/portfolio/usbdrive/2.jpg" /></a></li> <li><a href="javascript:void(0);" name="usbdrive3"><img src="images/portfolio/usbdrive/3.jpg" /></a></li> <li><a href="javascript:void(0);" name="usbdrive4"><img src="images/portfolio/usbdrive/4.jpg" /></a></li> <li><a href="javascript:void(0);" name="usbdrive5"><img src="images/portfolio/usbdrive/5.jpg" /></a></li> </ul> </div> </div>

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  • Adding on touch event to images inside gridview

    - by Steve
    I have a gridview where each item has a image and a textview (an app), i added the onItemClick to the gridview in order to launch the app, i also removed the orange selection and made selector in xml so when pressed the text would change to grey and on release it would return to white. My problem is that i need the image to apply an alpha value when pressed and restore the previous alpha on release i tested a lot of ways and none did worked correctly. I came close with the updated answer from the autor of the question: How to set alpha value for drawable in a StateListDrawable?, but some how the state pressed never gets called, i don´t know if this is because i am using the onitemClick to launch the app or not. Also i since i can´t define the alpha on imageview xml i don´t know what else to do Any help will be appreciated

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  • String loops in Python

    - by Steve Hunter
    I have two pools of strings and I would like to do a loop over both. For example, if I want to put two labeled apples in one plate I'll write: basket1 = ['apple#1', 'apple#2', 'apple#3', 'apple#4'] for fruit1 in basket1: basket2 = ['apple#1', 'apple#2', 'apple#3', 'apple#4'] for fruit2 in basket2: if fruit1 == fruit2: print 'Oops!' else: print "New Plate = %s and %s" % (fruit1, fruit2) However, I don't want order to matter -- for example I am considering apple#1-apple#2 equivalent to apple#2-apple#1. What's the easiest way to code this? I'm thinking about making a counter in the second loop to track the second basket and not starting from the point-zero in the second loop every time.

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