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  • Securing an ajax request

    - by asdasdsa
    i have a website that uses session cookies for security. it works fine and all, but any ajax requests right now are not secure. example being lets say a user is on a page. they can only get to this page if they are logged in with a session - so far so good. but now the ajax request they ask for is ajaxpages/somepage.php?somevar=something&anothervar=something if any other user decides to just go to that link themselves (without a session) they still get the same ajax output that was meant for logged in people. so obviously im going to have to pass session data across when i send an ajax request. anyone have any tips for the best way of doing this? ive never done this before and would rather use trusted methods than make up my own.

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  • how to specify which child class this object belong to after retrieving from a hashmap?

    - by chandra wibowo
    hi everyone, i have a parent class called Course, and two child class PostgradCourse and UndergradCourse. i have a hashmap HashMap courses; i store all the postgradCourse and undergradCourse objects in the hashmap. i want to retrieve an undergradCourse object from the hashmap using the key. Course course = courses.get(courseCode); then i want to call a method in the UndergradCourse class, setUnits() method course.setUnits(); but the compiler say cannot find symbol- method setUnit() im pretty sure the problem is the compiler is looking for a method setUnit() in the Course class instead of UndergradCourse class i did this but its not working UndergradCourse course = courses.get(courseCode); results in incompatible type so how can i retrieve undergradCourse object from the hashmap as an undergradCourse object instead of course object? so then i can call a method inside the child class thanks in advance

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  • Cookie is setting twice (dublicated)

    - by Erik Larsson
    I'm new to cookies, and im trying to set a cookie where to store the referer (the org ref). But when i try this function: function do_it_cookie() { // Check if cookie exists if (isset($_COOKIE['ref'])) { // It dose exist, do nothing or anything... } else { setcookie ('ref', $_SERVER['HTTP_REFERER'], time() + 60, '/'); header ("Location: http://www.nyttforetag.com/mind-your-own-business/"); } } I want to store the cookie on the user computer for 30 days, if the return i want to know the initial refereeing url. But when i use this and lets say i go to another page in my site and then go back to the homepage its sets a new cookie with the exact same name and with the ref of the previous page. Is there away to avoid this?

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  • how to open another window and close the window that calls it

    - by user225269
    I have this code in userpage.php: <script langauge="JavaScript"><!-- function newWindow(fileName,windowName) { msgWindow=window.open(fileName,windowName); } //--></script> <a href="javascript:newWindow('1.html','window1')">Logout</a> And this code at index.php: <script language="JavaScript"><!-- function newWindow(fileName,windowName) { msgWindow=window.open(fileName,windowName); } function replaceURL(fileName) { newWindow(fileName,'window2'); self.close(); } //--></script> What Im trying to do is to call another window that show index.php. Calling it with the userpage.php. But the script doesn't close the window that calls it. Its a logout link. Because when I press back button after logging out. I end up seeing the page which only the user that has logged in can access

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  • Add results from MySQL?

    - by NardCake
    Not quite sure how descriptive that title was but this is what I want to do. I scripted a URL shortener today and it's working fine, I just want to add some stats on the bottom of it saying how many links there are and how many clicks there are. Now everytime a user clicks one of the links it +1 the column in the database then it redirects the user. I want to query that and add all of those numbers together from each row. I attempted a while loop which im not surprised didn't work: while($rows = mysql_fetch_assoc($check_count)){ $clicks = $rows['clicks']; $clicks = $clicks+$clicks; } If you don't understand please ask and if you do understand it means alot for any response!

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  • failed to load resource

    - by Jason94
    Im trying to set up a simple mp3 player: <script language="javascript"> $(document).ready(function() { $('a.media').media( { width: 300, height: 20 } ); }); </script> and then <a class="media" href="piano.mp3">piano</a> But i get the following error: Failed to load resource I have followed the tutorial at http://jquery.malsup.com/media/audio.html, and if i click to view source and clikc on piano.mp3 chrome opens up its built in media player and plays the song, so the link and location is correct... Anyone got a clue?

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  • PHP / javascript live chat using too much bandwidth

    - by David
    So I am learning about javascript, so I am making a live chat system with PHP and javascript. I have it so the javascript refreshes the log (each message gets logged in a file on the server), and it refreshes every second. Im using firebug to monitor the resource usage, and I see under the net tab each times its updated, and the bytes add up really fast. I know I can change it to update less, but is there a way that when a user on the other end I'm talking to, when the send a message, it gets sent to the server, then an alert gets sent to me saying that the chatlog needs to update somehow. That way it only updates when the log is updated. let me know, thanks

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  • Is there a way to attach Ruby Net::HTTP request to a specific IP address / network interface?

    - by Dan Sosedoff
    Hello, Im looking a way to use different IP addresses for each GET request with standard Net::HTTP library. Server has 5 ip addresses and assuming that some API`s are blocking access when request limit per IP is reached. So, only way to do it - use another server. I cant find anything about it in ruby docs. For example, curl allows you to attach it to specific ip address (in PHP): $req = curl_init($url) curl_setopt($req, CURLOPT_INTERFACE, 'ip.address.goes.here'; $result = curl_exec($req); Is there any way to do it with Net::HTTP library? As alternative - CURB (ruby curl binding). But it will be the latest thing i`ll try. Suggestions / Ideas?

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  • Unknown Column?

    - by Kenny
    ok im trying to get mutual friends between these Two users, user1 and user92 This is the sql that is successful in displaying them SELECT IF(user_a = 1 OR user_a = 92, user_b, user_a) friend FROM friendship WHERE (user_a = 1 OR user_a = 92) OR (user_b = 1 OR user_b = 92) GROUP BY 1 HAVING COUNT(*) > 1 THis is how it looks friend 61 72 73 74 75 76 77 78 79 80 81 So now i want to select all users after the number 72, and i try to do it with this sql but its not working? It gives me the error, "unknown coulum name friend in where clause" SELECT IF(user_a = 1 OR user_a = 92, user_b, user_a) friend FROM friendship WHERE friend > 72 and (user_a = 1 OR user_a = 92) OR (user_b = 1 OR user_b = 92) GROUP BY 1 HAVING COUNT(*) > 1 what am i doing wrong? or what is the correct way?? thx

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  • Load image from server on a UIImageView in phone

    - by Pedro Narvaez
    Hi.. I'm having a problem loading a remote image into a UIImageVIew... It just doesn't show the image, may be i'm missing something... I also use the described here but with the same results How to load image from remote server on the UIImageView in iphone? Can someone help me? This is the code i'm using Im getting the data from a xml and on the image element I have the full path [[detailViewController detailImage] setImage:[UIImage imageWithData: [NSData dataWithContentsOfURL: [NSURL URLWithString: [NSString stringWithFormat:@"%@", [[promoList objectAtIndex: promoIndex] objectForKey: @"image"]] ]]] ]; With this code the image are displayed correctly [[detailViewController detailImage] setImage:[UIImage imageWithData: [NSData dataWithContentsOfURL: [NSURL URLWithString: @"http://localhost/promos/preview/1.jpeg"]] ]];

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  • audio error in vmware running mac os x

    - by PenguinSource
    simple synchronous loading of an audio file (.mp3) in a cocos2d app makes my vmware disconnect the sound. the error is display bottom right, saying 'error in creating sound stream; sound is disconnected' i read that it might be cause of my vmware's version (mine is 8) but I'm looking for a fix, not to downgrade to another version. before i get that error, the sound on the system works just fine (youtube, etc) the exact code im calling is.. [CDSoundEngine setMixerSampleRate: CD_SAMPLE_RATE_MID]; [[CDAudioManager sharedManager] setResignBehavior: kAMRBStopPlay autoHandle:Yes]; soundEngine = [SimpleAudioEngine sharedEngine]; [soundEngine preloadBackgroundMusic:@"somemp3.mp3"]; [soundEngine playBackgroundMusic:@"somemp3.mp3"]; maybe the bit rate is too high .. ? thanks

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  • RSA encrypted data block size

    - by calccrypto
    how do you store an rsa encrypted data block? the output might be significantly greater than the original input data block size, and i dont think people waste memory by padding bucket loads of 0s in front of each data block. besides, how would they be removed? or is each block stored on new lines within the file? if that is the case, how would you tell the difference between legitimate new line and a '\n' char written into the file? what am i missing? im writing the "write to file" part in python, so maybe its one of the differences between: open(file,'w') open(file,'w+b') open(file,'wb') that i dont know. or is it something else?

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  • SQL Syntax for Complex Scenario (Deals)

    - by Yisman
    hello everyone i have a complex query to be written but cannot figure it out here are my tables Sales --one row for each sale made in the system SaleProducts --one row for each line in the invoice (similar to OrderDetails in NW) Deals --a list of possible deals/offers that a sale may be entitled to DealProducts --a list of quantities of products that must be purchased in order to get a deal now im trying to make a query which will tell me for each sale which deals he may get the relevant fields are: Sales: SaleID (PK) SaleProducts: SaleID (FK), ProductID (FK) Deals: DealID (PK) DealProducts: DealID(FK), ProductID(FK), Mandatories (int) for required qty i believe that i should be able to use some sort of cross join or outer join, but it aint working here is one sample (of about 30 things i tried) SELECT DealProducts.DealID, DealProducts.ProductID, DealProducts.Mandatories, viwSaleProductCount.SaleID, viwSaleProductCount.ProductCount FROM DealProducts LEFT OUTER JOIN viwSaleProductCount ON DealProducts.ProductID = viwSaleProductCount.ProductID GROUP BY DealProducts.DealID, DealProducts.ProductID, DealProducts.Mandatories, viwSaleProductCount.SaleID, viwSaleProductCount.ProductCount the problem is that it doesnt show any product deals that r not fullfiled (probably because of the productid join). i need that also sales that dont have the requiremnets show up, then i can filter out any saleid that exists in this query "where AmountBought thank you for your help

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  • Authentication in Rails, where to start?

    - by Victor P
    Hello. Im learning Rails by building apps. I want to make my first authenticated app: users signup, login, do some changes in models they have access to and logout. I did the Google search but it is quite confusing: many plugins, many tutorials. Don't know where to start. Is there a state-of-the-art authentication method for Rails? What do you use in Production to authenticate your users? Any help in this will be helpful. Thanks

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  • variable being weirdly deleted

    - by calccrypto
    im having a weird problem with one variable: its not being recognized but its still printing. i would post my code, but it is massive. the basic idea is: # pseudocode def function(stuff): <do stuff> # These are the only 2 conditions if tag == 3: pka = <a string> if tag == 4: pka = <a string> print pka # (1) print pka # (2) <do stuff not modifying pka> print pka # (3) if pka == 'RSA': <do stuff> elif pka == 'DSA': <do stuff> my code will error at (2). however, it will print out (1), (2), and (3), all of which are the same. is there any general explanation of why this is happening? if my code is really needed, i will post it, but otherwise, i would rather not due to its size update: now the code will error at the if statement after (3), saying UnboundLocalError: local variable 'pka' referenced before assignment even though (1),(2),(3) just printed

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  • Sql Trigger Trouble

    - by SImon
    Hey guys i cant get this trigger to work, ive worked on it for an hour or so and cant see to figure out where im going wrong, any help would be appreciated CREATE OR REPLACE TRIGGER allergy BEFORE INSERT ON DECLARE med VARCHAR2(20); BEGIN SELECT v.medication RCD.specify INTO med FROM visit v, relcondetails RCD WHERE :new.medication = v.medication AND RCD.specifiy = 'allergies'; IF med = allergies THEN RAISE_APPLICATION_ERROR(-20000, 'Patient Is alergic to this medication'); END IF; END allergy; When put into oracle ERROR at line 6: ORA-04079: invalid trigger specification

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  • sharpziplib - can you add a file without it copying the entire zip first?

    - by schmoopy
    Im trying to add an existing file to a .zip file using sharpziplib - problem is, the zip file is 1GB in size. When i try to add 1 small file (400k) sharpziplib creates a copy/temp of the orig zip file before adding the new file - this poses a problem when the amount of free disk space is less than 2x the zip file you are trying to update. for example: 1GB zip myfile.zip 1GB zip myfile.zip.tmp.293 ZipFile zf = new ZipFile(path); zf.BeginUpdate(); zf.Add(file); // Adding a 400k file here causes a 1GB temp file to be created zf.EndUpdate(); zf.Close(); Is there a more efficient way to do this? Thanks :-)

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  • Rails - Create form fields dynamically and save them

    - by Frexuz
    Im building an ad-system where users can dynamically create 'fields' for each ad type. My models and example values: AdType: | id | name |----|----- | 1 | Hotel | 2 | Apartment AdOption: | id | ad_type_id | name |----|------------|----- | 1 | 1 | Star rating | 2 | 1 | Breakfast included? | 3 | 2 | Number of rooms AdValue: (Example after saving) | id | ad_id | ad_option_id | value |----|-------|---------------|------ | 1 | 1 | 1 (stars) | 5 | 2 | 1 | 2 (breakfast) | true Ad: (Example after saving) | id | description | etc.... |----|-----------------|-------- | 1 | very nice hotel | ....... So lets say I want to create a new ad, and I choose Hotel as the ad type. Then I need my view to dynamically create fields like this: (I'm guessing?) [Label] Star rating: [hidden_field :ad_id] [hidden_field :ad_option_id] [text_field :value] [Label] Breakfast included? [hidden_field :ad_id] [hidden_field :ad_option_id] [text_field :value] And also, how to save the values when the ad record is saved I hope this is understandable. If not just ask and I'll try to clarify.

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  • Custom configuration file custom_config.js not working?

    - by nanoquetz9l
    Hello gals/guys, I am trying to use a custom configuration file instead of the default config.js file in the ckeditor root. I have placed a renamed copy of the config.js file in my webroot and call it with customConfig. It is not working for me though. Is my syntax creating any issues? I used the dev docs site as a ref: http://docs.cksource.com/CKEditor_3.x/D ... igurations Any ides or comments will really help me out. Im stuck. Thanks!! nano <p></p> CKEDITOR.replace( 'ticket_text' ); CKEDITOR.replace( 'ticket_text1', { customConfig : '/ckeditor/custom_config.js' });

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  • Image Preloading in Canvas

    - by smokinguns
    I'm drawing an Image on the canvas using the drawImage function. This is how Im setting the src property of the image: var img = new Image(); // Create new Image object img.src = 'test.php?filename=myfile.jpg' and then oCanvas.width = 600; oCanvas.height = 400; oContext.drawImage(img, 0, 0, 600, 400); The problem is that if the src isn't set then I get the foll error:"uncaught exception: [Exception... "Component returned failure code: 0x80040111 (NS_ERROR_NOT_AVAILABLE) [nsIDOMCanvasRenderingContext2D.drawImage]" . I know I get this error coz the image hasnt finished loading. I added an alert just before the call to drawImage function to let the image finish loading and it seems to work. But it's a pain in the neck. How do I check if the image has finished loading? BTW I have to set the src property by calling a php file.

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  • Fade out/in sperate divs with button click

    - by user1914298
    I saw a flash website and was curious to now if this is something possible to build using Jquery, obviously not the entire thing. I was more looking to fade out div1 and div2 with a button click. This is the example site: www.justinfarrellyconstruction.com Example: If i come to the homepage and click the portfolio button the Gallery Div will fade out then fade in another image. At the same time the Text div will fade out its content and load the portfolio text. My apologies if this does not make sense, this is all quite new to me and im trying got learn.

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  • GET command is giving two kinds of ouput,why???

    - by developer
    iam using GET command to get the content of a page.When i write the same command on shell prompt it gives correct result but when i use that in PHP file then sometimes its giving correct result but sometimes it gives only half of the content i.e. end-half portion only. Iam using following command in shell script :- GET http://www.abc.com/ -H "Referer:http://www.abcd.com/" and following in PHP file :- $data=exec('GET http://www.abc.com/ -H "Referer:http://www.abcd.com/"'); echo $data; Now please tell why this command is not giving full content of the page when im using it in php file.

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  • android steganography

    - by poo123
    Im doing steganography on android...my code is as below.. public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); mBitmap = BitmapFactory.decodeResource(getResources(), R.drawable.src); picw = mBitmap.getWidth(); pich = mBitmap.getHeight(); pix= new int[picw * pich]; mBitmap.getPixels(pix, 0, picw, 0, 0, picw, pich); try { FileOutputStream fos = super.openFileOutput("dest.png", MODE_WORLD_READABLE); mBitmap.compress(CompressFormat.PNG, 100, fos); fos.flush(); fos.close(); }catch (Exception e) { tv.setText(e.getMessage()); } but whenever i save source image with Bitmap.compress() method pix[0] value before and after compression changed..so i'm unable to extract original data...please help me

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  • How to properly sort MPTT hierarchy data into multidimensional array ?

    - by DiegoMax
    Helo there, im trying to figure out how to write a function that returns a multidimensional array, based on the data below: I know how to write the function using the "category_parent" value, but im just trying to write a function that can create a multidimensional array by JUST using the left and right keys. Any help greatly appreciated! array(71) { [0]=> array(9) { ["id"]=> string(1) "1" ["category_name"]=> string(6) "Rubros" ["category_parent"]=> string(1) "0" ["category_slug"]=> string(6) "rubros" ["category_image"]=> NULL ["category_totals"]=> NULL ["category_lft"]=> string(1) "1" ["category_rgt"]=> string(3) "142" } [1]=> array(9) { ["id"]=> string(4) "1000" ["category_name"]=> string(12) "Restaurantes" ["category_parent"]=> string(1) "1" ["category_slug"]=> string(12) "restaurantes" ["category_image"]=> string(16) "restaurantes.png" ["category_totals"]=> string(1) "1" ["category_lft"]=> string(1) "2" ["category_rgt"]=> string(2) "13" } [2]=> array(9) { ["id"]=> string(1) "3" ["category_name"]=> string(21) "Restaurantes de Campo" ["category_parent"]=> string(4) "1000" ["category_slug"]=> string(21) "restaurantes-de-campo" ["category_image"]=> NULL ["category_totals"]=> string(1) "1" ["category_lft"]=> string(1) "3" ["category_rgt"]=> string(1) "4" } [3]=> array(9) { ["id"]=> string(2) "37" ["category_name"]=> string(25) "Restaurantes en la Ciudad" ["category_parent"]=> string(4) "1000" ["category_slug"]=> string(19) "restaurantes-ciudad" ["category_image"]=> string(0) "" ["category_totals"]=> string(1) "6" ["category_lft"]=> string(1) "5" ["category_rgt"]=> string(1) "6" } [4]=> array(9) { ["id"]=> string(2) "41" ["category_name"]=> string(21) "Servicios de Catering" ["category_parent"]=> string(4) "1000" ["category_slug"]=> string(8) "catering" ["category_image"]=> string(0) "" ["category_totals"]=> string(1) "1" ["category_lft"]=> string(1) "7" ["category_rgt"]=> string(1) "8" } [5]=> array(9) { ["id"]=> string(2) "48" ["category_name"]=> string(10) "Rotiserias" ["category_parent"]=> string(4) "1000" ["category_slug"]=> string(10) "rotiserias" ["category_image"]=> string(0) "" ["category_totals"]=> string(1) "1" ["category_lft"]=> string(1) "9" ["category_rgt"]=> string(2) "10" } [6]=> array(9) { ["id"]=> string(2) "62" ["category_name"]=> string(10) "Pizzerías" ["category_parent"]=> string(4) "1000" ["category_slug"]=> string(9) "pizzerias" ["category_image"]=> string(0) "" ["category_totals"]=> string(1) "1" ["category_lft"]=> string(2) "11" ["category_rgt"]=> string(2) "12" } [7]=> array(9) { ["id"]=> string(1) "2" ["category_name"]=> string(13) "Profesionales" ["category_parent"]=> string(1) "1" ["category_slug"]=> string(13) "profesionales" ["category_image"]=> string(17) "profesionales.png" ["category_totals"]=> string(1) "2" ["category_lft"]=> string(2) "14" ["category_rgt"]=> string(2) "35" } [8]=> array(9) { ["id"]=> string(2) "29" ["category_name"]=> string(11) "Arquitectos" ["category_parent"]=> string(1) "2" ["category_slug"]=> string(11) "arquitectos" ["category_image"]=> NULL ["category_totals"]=> string(1) "0" ["category_lft"]=> string(2) "15" ["category_rgt"]=> string(2) "16" } [9]=> array(9) { ["id"]=> string(2) "30" ["category_name"]=> string(8) "Abogados" ["category_parent"]=> string(1) "2" ["category_slug"]=> string(8) "abogados" ["category_image"]=> NULL ["category_totals"]=> string(1) "6" ["category_lft"]=> string(2) "17" ["category_rgt"]=> string(2) "18" } }

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  • How can i set isdigit() command as a variable?

    - by Nick
    I'm new to python but I caught on to the basics pretty quick and decided to start trying to make a program while I'm still learning, since I learn best by actually doing things. So I'm making a program in python that will add polynomials and I need to see if a character from the parser is numeric im using the isdigit() command. Instead of having to type isdigit() all the time in my code such as n.isdigit(), I want to assign it to a variable t = 'isdigit()' and then type n.t. This doesn't work, so is there an alternative to not typing the whole command?

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