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  • Multi-Array of XML Requests

    - by sologhost
    OMG, I am in need of a way to set up arrays of XML Requests based on the idShout - 1. So it would be something like this... var req = new Array(); req[idShout - 1] = ALL XML Data... Here's what I got so far but it's not working at all :( var idShout; var req = new Array(); function htmlRequest(url, params, HttpMethod) { req[req.push] = ajax_function(); for (i=0;i<req.length;i++) { if (req[i]) { if (HttpMethod == "GET") { req[i].onreadystatechange = function() { if (req[i].readyState != 4) return; if (req[i].responseText !== null && req[i].status == 200) { document.getElementById("shoutbox_area" + idShout).innerHTML = req[i].responseText; } } } req[i].open(HttpMethod,url,true); if (HttpMethod == "POST") req[i].setRequestHeader("Content-Type", "application/x-www-form-urlencoded"); if (params == "") req[i].send(null); else req[i].send(params); return req[i]; } else return null; } } function ajax_function() { var ajax_request = null; try { // Opera 8.0+, Firefox, Safari ajax_request = new XMLHttpRequest(); } catch (e) { // IE Browsers try { ajax_request = new ActiveXObject("Msxml2.XMLHTTP"); } catch (e) { try { ajax_request = new ActiveXObject("Microsoft.XMLHTTP"); } catch (e) { //No browser support, rare case return null; } } } return ajax_request; } function send() { var send_data = "shoutmessage=" + document.getElementById("shout_message" + idShout).value; var url = smf_prepareScriptUrl(smf_scripturl) + "action=dreamaction;sa=shoutbox;xml;send_shout="+ idShout; htmlRequest(url, send_data, "POST"); document.getElementById("shout_message" + idShout).value = ""; document.getElementById("shout_message" + idShout).focus(); return true; } function startShouts(refreshRate, shoutCount) { clearInterval(Timer[shoutCount-1]); idShout = shoutCount; show_shouts(); Timer[shoutCount - 1] = setInterval("show_shouts()", refreshRate); return; } function show_shouts() { var url = smf_prepareScriptUrl(smf_scripturl) + "action=dreamaction;sa=shoutbox;xml;get_shouts=" + idShout; htmlRequest(url, "", "GET"); } Any help at all on this would be greatly appreciated... Basically, I'm setting the Timer Arrays in a different function before this, and I call startShouts which is supposed to show all of the information, but startShouts gets called more than once, which is why I have idShout set to equal shoutCount. So it will go something like this: shoutCount = 1, shoutCount = 2, shoutCount = 3, everytime it is being called. So I set the req[idShout - 1] array and it should return the result right?? Well, I get no errors in Firefox in the error console with this code above, but it doesn't work... Any ideas anyone?? As it needs to output into more than 1 area... argg. Thanks for any help you can offer here :) Thanks guys :)

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  • JRuby wrong element type class java.lang.String(array contains char) related to JAVA_HOME

    - by Daryl
    I am on Ubuntu x64 bit running: java version "1.6.0_18" OpenJDK Runtime Environment (IcedTea6 1.8) (6b18-1.8-0ubuntu1) OpenJDK 64-Bit Server VM (build 14.0-b16, mixed mode) and jruby 1.4.0 (ruby 1.8.7 patchlevel 174) (2010-02-11 6586) (OpenJDK 64-Bit Server VM 1.6.0_18) [amd64-java] I have this code running on my Windows 7 computer at home. I recently copied over my whole folder over to Ubuntu, installed java, jruby, and associated gems but I get this error when I run my main file: jruby run.rb test =================Processing FREDERICKSBURG_1.1======================= ERROR IN TESTING wrong element type class java.lang.String(array contains char) /home/daryl/Desktop/work/Code/geografikos/lib/sentence_splitter/splitter.rb:21:in `to_java' /home/daryl/Desktop/work/Code/geografikos/lib/sentence_splitter/splitter.rb:21:in `split' /home/daryl/Desktop/work/Code/geografikos/lib/models/page.rb:103:in `sentences' /home/daryl/Desktop/work/Code/geografikos/lib/extractor/lingpipe_svm.rb:34:in `extract' /home/daryl/Desktop/work/Code/geografikos/lib/extractor/geo_controller.rb:9:in `process' /home/daryl/Desktop/work/Code/geografikos/lib/extractor/geo_controller.rb:8:in `each' /home/daryl/Desktop/work/Code/geografikos/lib/extractor/geo_controller.rb:8:in `process' /home/daryl/Desktop/work/Code/geografikos/lib/extractor/geo_controller.rb:6:in `each' /home/daryl/Desktop/work/Code/geografikos/lib/extractor/geo_controller.rb:6:in `process' /home/daryl/Desktop/work/Code/geografikos/lib/statistics.rb:111:in `generate_all' /home/daryl/Desktop/work/Code/geografikos/lib/statistics.rb:105:in `each' /home/daryl/Desktop/work/Code/geografikos/lib/statistics.rb:105:in `generate_all' run.rb:56 The focus of the error is: ERROR IN TESTING wrong element type class java.lang.String(array contains char) Everything works fine on my windows machine. I figured I was getting this error because I did not have JAVA_HOME set however I added this to bashrc as: export JAVA_HOME=/usr/lib/jvm/java-1.6.0-openjdk and have confirmed: echo $JAVA_HOME /usr/lib/jvm/java-1.6.0-openjdk I can produce a similar error by removing my JAVA_HOME variable on windows: =================Processing FREDERICKSBURG_1.3======================= ERROR IN TESTING cannot convert instance of class org.jruby.RubyString to char C:/work/Code/geografikos/lib/sentence_splitter/splitter.rb:21:in `to_java' C:/work/Code/geografikos/lib/sentence_splitter/splitter.rb:21:in `split' C:/work/Code/geografikos/lib/models/page.rb:103:in `sentences' C:/work/Code/geografikos/lib/extractor/lingpipe_svm.rb:34:in `extract' C:/work/Code/geografikos/lib/extractor/geo_controller.rb:9:in `process' C:/work/Code/geografikos/lib/extractor/geo_controller.rb:8:in `each' C:/work/Code/geografikos/lib/extractor/geo_controller.rb:8:in `process' C:/work/Code/geografikos/lib/extractor/geo_controller.rb:6:in `each' C:/work/Code/geografikos/lib/extractor/geo_controller.rb:6:in `process' C:/work/Code/geografikos/lib/statistics.rb:111:in `generate_all' C:/work/Code/geografikos/lib/statistics.rb:105:in `each' C:/work/Code/geografikos/lib/statistics.rb:105:in `generate_all' run.rb:56 It is obviously not exactly the same but I have a feeling this has to do with the java path. You can probably derive from the error that I am just trying to convert a ruby variable to java using to_java. This works fine on my windows machine and I have confirmed the gems are the same but I don't think this has to do with gems. I lied. I changed my JAVA_HOME back on my windows machine and this error still occurs. So now the code doesn't run on either machine. I recently installed git on my windows machine and added the code to a repository. But I haven't really done anything with it. All it said was it will convert all LF to CRLF...That shouldn't change anything though should it? Any ideas on why I am now getting these errors? I haven't changed anything on my windows machine in months except for installing git.

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  • Fatal error on a non-object

    - by Chris Leah
    Hey, so I have created a function to check the DB for unique entries, but when I call the function it doesn't seem to work and gives me a fatal error any ideas ? Thanks :) //Check for unique entries function checkUnique($table, $field, $compared) { $query = $mysqli->query('SELECT '.$mysqli->real_escape_string($field).' FROM '.$mysqli->real_escape_string($table).' WHERE "'.$mysqli->real_escape_string($field).'" = "'.$mysqli->real_escape_string($compared).'"'); if(!$query){ return TRUE; } else { return FALSE; } } The page calling it..... //Start session session_start(); //Check if the session is already set, if so re-direct to the game if(isset($_SESSION['id'], $_SESSION['logged_in'])){ Header('Location: ../main/index.php'); }; //Require database connection require_once('../global/includes/db.php'); require_once('../global/functions/functions.php'); //Check if the form has been submitted if (isset($_POST['signup'])){ //Validate input if (!empty($_POST['username']) && !empty($_POST['password']) && $_POST['password']==$_POST['password_confirm'] && !empty($_POST['email']) && validateEmail($_POST['email']) == TRUE && checkUnique('users', 'email', $_POST['email']) == TRUE && checkUnique('users', 'username', $_POST['username']) == TRUE) { //Insert user to the database $insert_user = $mysqli->query('INSERT INTO (`username, `password`, `email`, `verification_key`) VALUES ("'.$mysqli->real_escape_string($_POST['username']).'", "'.$mysqli-real_escape_string(md5($_POST['password'])).'", "'.$mysqli->real_escape_string($_POST['email']).'", "'.randomString('alnum', 32). '"') or die($mysqli->error()); //Get user information $getUser = $mysqli->query('SELECT id, username, email, verification_key FROM users WHERE username = "'.$mysqli->real_escape_string($_POST['username']).'"' or die($mysqli->error())); //Check if the $getUser returns true if ($getUser->num_rows == 1) { //Fetch associated fields to this user $row = $getUser->fetch_assoc(); //Set mail() variables $headers = 'From: [email protected]'."\r\n". 'Reply-To: [email protected]'."\r\n". 'X-Mailer: PHP/'.phpversion(); $subject = 'Activate your account (Music Battles.net)'; //Set verification email message $message = 'Dear '.$row['username'].', I would like to welcome you to Music Battles. Although in order to enjoy the gmae you must first activate your account. \n\n Click the following link: http://www.musicbattles.net/home/confirm.php?id='.$row['id'].'key='.$row['verification_key'].'\n Thanks for signing up, enjoy the game! \n Music Battles Team'; //Attempts to send the email if (mail($row['email'], $subject, $message, $headers)) { $msg = '<p class="success">Accound has been created, please go activate it from your email.</p>'; } else { $error = '<p class="error">The account was created but your email was not sent.</p>'; } } else { $error = '<p class="error">Your account was not created.</p>'; } } else { $error = '<p class="error">One or more fields contain non or invalid data.</p>'; } } Erorr.... Fatal error: Call to a member function query() on a non-object in /home/mbattles/public_html/global/functions/functions.php on line 5

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  • C# Windows Service XML

    - by Goober
    Scenario I have a windows service written in C# that performs some processing based on parsing an XML file and use that data to carry out various tasks. The service also does various bits of logging - which uses settings from an APP.Config file. The Problem When the service is compiled, installed and run, the XML file seems to disappear. I'm getting the impression that it is just ignored or something like that. So far I've tried using TWO App.Config files, one named App.Config that contains settings for the service, and the other called MyService.exe.config that contains all of the data that was used in the XML file (the idea being that I can parse the XML from a config file that actually gets compiled and appears in my installation directory. However When I do this, all that happens is that ONE config file appears (with the name MyService.exe.config), but it contains the contents of the App.Config file and not the XML data that I want to parse. What I need All I want is to have a config file for my settings, and an XML file for my data. Question Is this possible? I know the application works as it was originally built as a console application that ran fine. Other The application has to be designed this way (as in, I need my data stored as XML, and my settings stored in a config file). Thoughts If I could somehow combine the contents of the two files into ONE config file, that would be one way of solving the problem. However, I have tried this and of course I get a "Type Initialisation Exception", as the config file cannot interprate the XML data (probably because the tags are custom and do not form any part of the config schema - or something like that). Ideas Please could someone explain to me if it is possible for me to have an XML file AND a config file that will actually be compiled and stored in my installation directory for the service when it is run? CODE Custom XML/Data Config File <?xml version="1.0" encoding="utf-8" ?> <configuration> <servers> <SV066930> <add name="Name" value = "SV066930" /> <processes> <SimonTest1> <add name="ProcessName" value="notepad.exe" /> <add name="CommandLine" value="C:\\WINDOWS\\system32\\notepad.exe C:\\WINDOWS\\Profiles\\TA2TOF1\\Desktop\\SimonTest1.txt" /> </SimonTest1> </processes> </SV066930> </servers> </configuration> APP.Config Settings File <?xml version="1.0" encoding="utf-8" ?> <configuration> <configSections> <section name="dataConfiguration" type="Microsoft.Practices.EnterpriseLibrary.Data.Configuration.DatabaseSettings, Microsoft.Practices.EnterpriseLibrary.Data, Version=4.0.0.0, Culture=neutral, PublicKeyToken=xxxxxxxxxxx" /> </configSections> <connectionStrings> <add name="DB" connectionString="Data Source=etc......" /> </connectionStrings> </configuration> Help greatly appreciated.

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  • Unable to use NSURLConnection to get contents of password/username protected webpage

    - by bubster
    I am trying to get the contents of a webpage that requires a password and user name to access. I am using a NSURLConnection object to get it however when I write the NSMutableData object that is returned to a file all I get is the login page. Normally when you try to load the password protected page when you are not logged in it redirects to the login page however I thought that if I provided valid credentials then this I would be able to view the password protected page. Also I do not know if it is relevant the website is using a microsoft mysql database on an IIS (internet information server). Note: [protectionSpace authenticationMethod] returns NSURLAuthenticationMethodServerTrust I am pretty unfamiliar with this so any ideas would be greatly appreciated. Below is all of the relevant code: - (void)connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse *)response { // This method is called when the server has determined that it // has enough information to create the NSURLResponse. // It can be called multiple times, for example in the case of a // redirect, so each time we reset the data. // receivedData is an instance variable declared elsewhere. [receivedData setLength:0]; } - (void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data { // Append the new data to receivedData. // receivedData is an instance variable declared elsewhere. [receivedData appendData:data]; } - (void)connection:(NSURLConnection *)connection didFailWithError:(NSError *)error { // release the connection, and the data object //[connection release]; // receivedData is declared as a method instance elsewhere //[receivedData release]; // inform the user NSLog(@"Connection failed! Error - %@ %@", [error localizedDescription], [[error userInfo] objectForKey:NSURLErrorFailingURLStringErrorKey]); } - (void)connectionDidFinishLoading:(NSURLConnection *)connection { // do something with the data // receivedData is declared as a method instance elsewhere NSLog(@"Succeeded! Received %d bytes of data",[receivedData length]); // release the connection, and the data object //[connection release]; //[receivedData release]; //Write data to a file [receivedData writeToFile:@"/Users/matsallen/Desktop/receivedData.html" atomically:YES]; } - (BOOL)connection:(NSURLConnection *)connection canAuthenticateAgainstProtectionSpace: (NSURLProtectionSpace *)protectionSpace { NSLog(@"The connection encountered a protection space. The authentication method is %@", [protectionSpace authenticationMethod]); secureTrustReference = [protectionSpace serverTrust]; //SecTrustResultType *result; //OSStatus status = SecTrustEvaluate(secureTrustReference, result); //NSLog(@"Result of the trust evaluation is %@",status); return YES; } - (void)connection:(NSURLConnection *)connection didReceiveAuthenticationChallenge:(NSURLAuthenticationChallenge *)challenge { NSURLCredential *newCredential; newCredential = [NSURLCredential credentialWithUser:@"username" password:@"password" persistence:NSURLCredentialPersistenceForSession]; newCredential = [NSURLCredential credentialForTrust:secureTrustReference]; // [[challenge sender] useCredential:newCredential forAuthenticationChallenge:challenge]; // [[challenge sender] continueWithoutCredentialForAuthenticationChallenge:challenge]; } #pragma mark - View lifecycle - (void)viewDidLoad { receivedData = [[NSMutableData alloc] init]; [super viewDidLoad]; // Do any additional setup after loading the view, typically from a nib. // Create the request. NSURLRequest *theRequest=[NSURLRequest requestWithURL:[NSURL URLWithString:@"https://www.markallenonline.com/secure/maoCoaching.aspx"] cachePolicy:NSURLRequestUseProtocolCachePolicy timeoutInterval:60.0]; // create the connection with the request // and start loading the data NSURLConnection *theConnection=[[NSURLConnection alloc] initWithRequest:theRequest delegate:self]; if (theConnection) { // Create the NSMutableData to hold the received data. // receivedData is an instance variable declared elsewhere. receivedData = [NSMutableData data]; NSLog(@"Connection succeeded!"); } else { // Inform the user that the connection failed. NSLog(@"Connection failed!"); } }

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  • Problem using easy_install on Windows 7, 64 bit. (cannot find python.exe)

    - by Rune
    Hi, I have just now installed Python 2.6 on my Windows 7 (64 bit) Lenovo t61p laptop. I have downloaded Sphinx and nose and apparently installed them correctly using python setup.py install (at least no errors were reported during the installation). Now I am trying to install pymongo using easy_install but I am not having much success. It seems that easy_install isn't working at all. I execute easy_install as administrator: C:\>easy_install Cannot find Python executable C:\Program Files\Python26\python.exe The path C:\Program Files\Python26\python.exe is correct. I have found this bug report on bugs.python.org which seems to be related, although its status is 'Resolved'. Do you have any ideas as to what may be wrong? Any pointers, hints or tips for diagnosing the problem further would be greatly appreciated. EDIT: This is the stacktrace I receive when trying to install pymongo: C:\Users\Rune Ibsen\Documents\Downloads\pymongo-1.4>python setup.py install running install running bdist_egg running egg_info writing pymongo.egg-info\PKG-INFO writing top-level names to pymongo.egg-info\top_level.txt writing dependency_links to pymongo.egg-info\dependency_links.txt reading manifest file 'pymongo.egg-info\SOURCES.txt' reading manifest template 'MANIFEST.in' writing manifest file 'pymongo.egg-info\SOURCES.txt' installing library code to build\bdist.win-amd64\egg running install_lib running build_py running build_ext building 'pymongo._cbson' extension Traceback (most recent call last): File "setup.py", line 166, in <module> "doc": doc}) File "C:\Program Files\Python26\lib\distutils\core.py", line 152, in setup dist.run_commands() File "C:\Program Files\Python26\lib\distutils\dist.py", line 975, in run_commands self.run_command(cmd) File "C:\Program Files\Python26\lib\distutils\dist.py", line 995, in run_command cmd_obj.run() File "C:\Program Files\Python26\lib\site-packages\setuptools-0.6c9-py2.6.egg\setuptools\command\install.py", line 76, in run File "C:\Program Files\Python26\lib\site-packages\setuptools-0.6c9-py2.6.egg\setuptools\command\install.py", line 96, in do_egg_install File "C:\Program Files\Python26\lib\distutils\cmd.py", line 333, in run_command self.distribution.run_command(command) File "C:\Program Files\Python26\lib\distutils\dist.py", line 995, in run_command cmd_obj.run() File "C:\Program Files\Python26\lib\site-packages\setuptools-0.6c9-py2.6.egg\setuptools\command\bdist_egg.py", line 174, in run File "C:\Program Files\Python26\lib\site-packages\setuptools-0.6c9-py2.6.egg\setuptools\command\bdist_egg.py", line 161, in call_command File "C:\Program Files\Python26\lib\distutils\cmd.py", line 333, in run_command self.distribution.run_command(command) File "C:\Program Files\Python26\lib\distutils\dist.py", line 995, in run_command cmd_obj.run() File "C:\Program Files\Python26\lib\site-packages\setuptools-0.6c9-py2.6.egg\setuptools\command\install_lib.py", line 20, in run File "C:\Program Files\Python26\lib\distutils\command\install_lib.py", line 113, in build self.run_command('build_ext') File "C:\Program Files\Python26\lib\distutils\cmd.py", line 333, in run_command self.distribution.run_command(command) File "C:\Program Files\Python26\lib\distutils\dist.py", line 995, in run_command cmd_obj.run() File "setup.py", line 107, in run build_ext.run(self) File "C:\Program Files\Python26\lib\distutils\command\build_ext.py", line 340, in run self.build_extensions() File "C:\Program Files\Python26\lib\distutils\command\build_ext.py", line 449, in build_extensions self.build_extension(ext) File "setup.py", line 117, in build_extension build_ext.build_extension(self, ext) File "C:\Program Files\Python26\lib\distutils\command\build_ext.py", line 499, in build_extension depends=ext.depends) File "C:\Program Files\Python26\lib\distutils\msvc9compiler.py", line 448, in compile self.initialize() File "C:\Program Files\Python26\lib\distutils\msvc9compiler.py", line 358, in initialize vc_env = query_vcvarsall(VERSION, plat_spec) File "C:\Program Files\Python26\lib\distutils\msvc9compiler.py", line 274, in query_vcvarsall raise ValueError(str(list(result.keys()))) ValueError: [u'path'] C:\Users\Rune Ibsen\Documents\Downloads\pymongo-1.4> PS.: I previously installed Python 3.1 but later installed 2.6 because I am not sure whether pymongo supports 3.1. PPS.: I have tried installing pymongo using the python setup.py install approach, but this resulted in a nasty-looking stack trace, so I thought I would try to let easy_install take care of it for me. PPPS.: I am completely new to Python, easy_install, eggs etc.

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  • Is the Unix Philosophy still relevant in the Web 2.0 world?

    - by David Titarenco
    Introduction Hello, let me give you some background before I begin. I started programming when I was 5 or 6 on my dad's PSION II (some primitive BASIC-like language), then I learned more and more, eventually inching my way up to C, C++, Java, PHP, JS, etc. I think I'm a pretty decent coder. I think most people would agree. I'm not a complete social recluse, but I do stuff like write a virtual machine for fun. I've never taken a computer course in college because I've been in and out for the past couple of years and have only been taking core classes; never having been particularly amazing at school, perhaps I'm missing some basic tenet that most learn in CS101. I'm currently reading Coders at Work and this question is based on some ideas I read in there. A Brief (Fictionalized) Example So a certain sunny day I get an idea. I hire a designer and hammer away at some C/C++ code for a couple of months, soon thereafter releasing silvr.com, a website that transmutes lead into silver. Yep, I started my very own start-up and even gave it a clever web 2.0 name with a vowel missing. Mom and dad are proud. I come up with some numbers I should be seeing after 1, 2, 3, 6, 9, 12 months and set sail. Obviously, my transmuting server isn't perfect, sometimes it segfaults, sometimes it leaks memory. I fix it and keep truckin'. After all, gdb is my best friend. Eventually, I'm at a position where a very small community of people are happily transmuting lead into silver on a semi-regular basis, but they want to let their friends on MySpace know how many grams of lead they transmuted today. And they want to post images of their lead and silver nuggets on flickr. I'm losing out on potential traffic unless I let them log in with their Yahoo, Google, and Facebook accounts. They want webcam support and live cock fighting, merry-go-rounds and Jabberwockies. All these things seem necessary. The Aftermath Of course, I have to re-write the transmuting server! After all, I've been losing money all these months. I need OAuth libraries and OpenID libraries, JSON support, and the only stable Jabberwocky API is for Java. C++ isn't even an option anymore. I'm just one guy! The Java binary just grows and grows since I need some legacy Apache include for the JSON library, and some antiquated Sun dependency for OAuth support. Then I pick up a book like Coders at Work and read what people like jwz say about complexity... I think to myself.. Keep it simple, stupid. I like simple things. I've always loved the Unix Philosophy but even after trying to keep the new server source modular and sleek, I loathe having to write one more line of code. It feels that I'm just piling crap on top of other crap. Maybe I'm naive thinking every piece of software can be simple and clever. Maybe it's just a phase.. or is the Unix Philosophy basically dead when it comes to the current state of (web) development? I'm just kind of disheartened :(

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  • (PHP) User is being forced to RE-LOGIN after trying to do something on an admin page

    - by hatorade
    I have created an admin panel for a client in PHP, which requires a login. Here is the code at the top of the admin page requiring the user to be logged in: admin.php <?php session_start(); require("_lib/session_functions.php"); require("_lib/db.php"); db_connect(); //if the user has not logged in if(!isLoggedIn()) { header('Location: login_form.php'); die(); } ?> Obviously, the if statement is what catches them and forces them to log in. Here is the code on the resulting login page: login_form.php <form name="login" action="login.php" method="post"> Username: <input type="text" name="username" /> Password: <input type="password" name="password" /> <input type="submit" value="Login" /> </form> Which posts info to this controller page: login.php <?php session_start(); //must call session_start before using any $_SESSION variables include '_lib/session_functions.php'; $username = $_POST['username']; $password = $_POST['password']; include '_lib/db.php'; db_connect(); // Connect to the DB $username = mysql_real_escape_string($username); $query = "SELECT password, salt FROM users WHERE username = '$username';"; $result = mysql_query($query); if(mysql_num_rows($result) < 1) //no such user exists { header('Location: login_form.php?login=fail'); die(); } $userData = mysql_fetch_array($result, MYSQL_ASSOC); db_disconnect(); $hash = hash('sha256', $password . $userData['salt']); if($hash != $userData['password']) //incorrect password { header('Location: login_form.php?login=fail'); die(); } else { validateUser(); //sets the session data for this user } header('Location: admin.php'); ?> and the session functions page that provides login functions contains this: session_functions.php <?php function validateUser() { session_regenerate_id (); //this is a security measure $_SESSION['valid'] = 1; $_SESSION['userid'] = $username; } function isLoggedIn() { if($_SESSION['valid']) return true; return false; } function logout() { $_SESSION = array(); //destroy all of the session variables if (ini_get("session.use_cookies")) { $params = session_get_cookie_params(); setcookie(session_name(), '', time() - 42000, $params["path"], $params["domain"], $params["secure"], $params["httponly"] ); } session_destroy(); } ?> I grabbed the sessions_functions.php code of an online tutorial, so it could be suspicious. Any ideas why the user logs in to the admin panel, tries to do something, is forced to re-login, and THEN is allowed to do stuff like normal in the admin panel?

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  • xpath 2.0 query - how to test for the first occurence of an element in a xml document

    - by Mike
    I have the following xsl template: <xsl:template match="para"> <fo:block xsl:use-attribute-sets="paragraph.para"> <!-- if first para in document --> <!--<xsl:if test="//para[1] intersect .">--> <xsl:if test="//para[1] intersect ."> <xsl:attribute name="space-after">10pt</xsl:attribute> <xsl:attribute name="background-color">yellow</xsl:attribute> </xsl:if> <xsl:choose> <xsl:when test="preceding-sibling::*[1][self::title]"> <xsl:attribute name="text-indent">0em</xsl:attribute> </xsl:when> <xsl:when test="parent::item"> <xsl:attribute name="text-indent">0em</xsl:attribute> </xsl:when> <xsl:otherwise> <xsl:attribute name="text-indent">1em</xsl:attribute> </xsl:otherwise> </xsl:choose> <xsl:apply-templates/> </fo:block> </xsl:template> The problem I am having is selecting the very first para node in the document from the following xml: <document> <section> <paragraph> <para>Para Text 1*#</para> <para>Para Text 2</para> </paragraph> </section> <paragraph> <para>Para Text 3*</para> <para>Para Text 4</para> <para>Para Text 5</para> <sub-paragraph> <para>Para Text 6*</para> <para>Para Text 7</para> </sub-paragraph> </paragraph> <appendix> <paragraph> <para>Para Text 8*</para> </paragraph> <paragraph> <para>Para Text 9</para> </paragraph> </appendix> </document> the xpath I am currently using is "//para[1] intersect ." which is selecting the first para for each group of para (denoted with a * in XML sample). Any ideas on how I can just select the first occurance of para within document (denoted with a #)?

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  • How to write specs with MSpec for code that changes Thread.CurrentPrincipal?

    - by Dan Jensen
    I've been converting some old specs to MSpec (were using NUnit/SpecUnit). The specs are for a view model, and the view model in question does some custom security checking. We have a helper method in our specs which will setup fake security credentials for the Thread.CurrentPrincipal. This worked fine in the old unit tests, but fails in MSpec. Specifically, I'm getting this exception: "System.Runtime.Serialization.SerializationException: Type is not resolved for member" It happens when part of the SUT tries to read the app config file. If I comment out the line which sets the CurrentPrincipal (or simply call it after the part that checks the config file), the error goes away, but the tests fail due to lack of credentials. Similarly, if I set the CurrentPrincipal to null, the error goes away, but again the tests fail because the credentials aren't set. I've googled this, and found some posts about making sure the custom principal is serializable when it crosses AppDomain boundaries (usually in reference to web apps). In our case, this is not a web app, and I'm not crossing any AppDomains. Our pincipal object is also serializable. I downloaded the source for MSpec, and found that the ConsoleRunner calls a class named AppDomainRunner. I haven't debugged into it, but it looks like it's running the specs in different app domains. So does anyone have any ideas on how I can overcome this? I really like MSpec, and would love to use it exclusively. But I need to be able to supply fake security credentials while running the tests. Thanks! Update: here's the spec class: [Subject(typeof(CountryPickerViewModel))] public class When_the_user_makes_a_selection : PickerViewModelSpecsBase { protected static CountryPickerViewModel picker; Establish context = () => { SetupFakeSecurityCredentials(); CreateFactoryStubs(); StubLookupServicer<ICountryLookupServicer>() .WithData(BuildActiveItems(new [] { "USA", "UK" })); picker = new CountryPickerViewModel(ViewFactory, ViewModelFactory, BusinessLogicFactory, CacheFactory); }; Because of = () => picker.SelectedItem = picker.Items[0]; Behaves_like<Picker_that_has_a_selected_item> a_picker_with_a_selection; } We have a number of these "picker" view models, all of which exhibit some common behavior. So I'm using the Behaviors feature of MSpec. This particular class is simulating the user selecting something from the (WPF) control which is bound to this VM. The SetupFakeSecurityCredentials() method is simply setting Thread.CurrentPrincipal to an instance of our custom principal, where the prinipal has been populated will full-access rights. Here's a fake CountryPickerViewModel which is enough to cause the error: public class CountryPickerViewModel { public CountryPickerViewModel(IViewFactory viewFactory, IViewModelFactory viewModelFactory, ICoreBusinessLogicFactory businessLogicFactory, ICacheFactory cacheFactory) { Items = new Collection<int>(); var validator = ValidationFactory.CreateValidator<object>(); } public int SelectedItem { get; set; } public Collection<int> Items { get; private set; } } It's the ValidationFactory call which blows up. ValidationFactory is an Enterprise Library object, which tries to access the config.

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  • Error When Loading Images on Local Host Test Server

    - by ke4ktz
    I have a peculiar problem that I just can't seem to find an explanation. I'm working on an AngularJS site for our family and am integrating data from various web services. Currently I am working on the photos section which will integrate in photos from our Flickr account. I have a main page which lists the various photo sets and displays the set's primary photo along with the title. (Note: I'm using the Flickr 'extras' parameter to return the primary photo's URL in the API calls.) <div data-ng-repeat="p in vm.photoSets"> <a ng-href="#/photos/{{p.id}}"> <img ng-src="{{p.primary_photo_extras.url_s}}"></img> </a> <h4>{{p.title._content}}</h4> </div> When clicking on the photo, the routing will display a page with a list of all the photos from that set, showing the image and the title. <div data-ng-repeat="p in vm.photoSetData.photo"> <a ng-href="#/photos/{{vm.photoSetId}}/{{p.id}}" <img ng-src="{{p.url_s}}"></img> </a> <h4>{{p.title}}</h4> </div> Now, here's where the problem is occuring. When I upload the code to my public website on my hosting provider, everything works just fine. Both pages display their respective photos. However, when I attempt to run the site on my local system, either in MAMP or NodeJS (using http-server), the second page gives me an error for each image: Error: [$interpolate:interr] Can't interpolate: {{p.url_s}} Error: [$sce:insecurl] Blocked loading resource from url not allowed by $sceDelegate policy. URL: https://farm1.staticflickr.com/37/82749767_e82ff60ce3_m.jpg http://errors.angularjs.org/1.2.9/$sce/insecurl?p0=https%3A%2F%2Ffarm1.staticflickr.com%2F37%2F82749767_e82ff60ce3_m.jpg http://errors.angularjs.org/1.2.9/$interpolate/interr?p0=%7B%7Bp.url_s%7D%7D&p1=Error%3A%20%5B%24sce%3Ainsecurl%5D%20Blocked%20loading%20resource%20from%20url%20not%20allowed%20by%20%24sceDelegate%20policy.%20%20URL%3A%20https%3A%2F%2Ffarm1.staticflickr.com%2F37%2F82749767_e82ff60ce3_m.jpg%0Ahttp%3A%2F%2Ferrors.angularjs.org%2F1.2.9%2F%24sce%2Finsecurl%3Fp0%3Dhttps%253A%252F%252Ffarm1.staticflickr.com%252F37%252F82749767_e82ff60ce3_m.jpg minErr/<@http://localhost/scripts/angular.js:78 $interpolate/fn@http://localhost/scripts/angular.js:8254 $RootScopeProvider/this.$get</Scope.prototype.$digest@http://localhost/scripts/angular.js:11800 $RootScopeProvider/this.$get</Scope.prototype.$apply@http://localhost/scripts/angular.js:12061 done@http://localhost/scripts/angular.js:7843 completeRequest@http://localhost/scripts/angular.js:8026 createHttpBackend/</jsonpDone<@http://localhost/scripts/angular.js:7942 jsonpReq/doneWrapper@http://localhost/scripts/angular.js:8039 jsonpReq/script.onerror@http://localhost/scripts/angular.js:8053 The API call to Flickr is successful and returns the correct data. In fact, the image title does display! I've tested it with Firefox, Safari and Chrome...all three browsers fail. I cannot find any explanation as to why it would work remotely but fail locally. Also, the images show up on the first page, but not on the second, even though one of the images on the second page is the same image URL as on the first page. Even going directly to the second page, bypassing the first page, still fails. Any ideas on how to fix this? It would be nice to test locally without having to upload to the server each time I make a change. Update: I have shut off the $sce security to see if that was causing the issue. Although it resulted in turning the error off, the files still don't load on the local test server. I have used the developer tools' network monitor and it doesn't even show an attempt to retrieve the files. AngularJS appears to shut down the retrieval, although the correct path shows up in the DOM.

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  • How to have struct members accessible in different ways

    - by Paul J. Lucas
    I want to have a structure token that has start/end pairs for position, sentence, and paragraph information. I also want the members to be accessible in two different ways: as a start/end pair and individually. Given: struct token { struct start_end { int start; int end; }; start_end pos; start_end sent; start_end para; typedef start_end token::*start_end_ptr; }; I can write a function, say distance(), that computes the distance between any of the three start/end pairs like: int distance( token const &i, token const &j, token::start_end_ptr mbr ) { return (j.*mbr).start - (i.*mbr).end; } and call it like: token i, j; int d = distance( i, j, &token::pos ); that will return the distance of the pos pair. But I can also pass &token::sent or &token::para and it does what I want. Hence, the function is flexible. However, now I also want to write a function, say max(), that computes the maximum value of all the pos.start or all the pos.end or all the sent.start, etc. If I add: typedef int token::start_end::*int_ptr; I can write the function like: int max( list<token> const &l, token::int_ptr p ) { int m = numeric_limits<int>::min(); for ( list<token>::const_iterator i = l.begin(); i != l.end(); ++i ) { int n = (*i).pos.*p; // NOT WHAT I WANT: It hard-codes 'pos' if ( n > m ) m = n; } return m; } and call it like: list<token> l; l.push_back( i ); l.push_back( j ); int m = max( l, &token::start_end::start ); However, as indicated in the comment above, I do not want to hard-code pos. I want the flexibility of accessible the start or end of any of pos, sent, or para that will be passed as a parameter to max(). I've tried several things to get this to work (tried using unions, anonymous unions, etc.) but I can't come up with a data structure that allows the flexibility both ways while having each value stored only once. Any ideas how to organize the token struct so I can have what I want? Attempt at clarification Given struct of pairs of integers, I want to be able to "slice" the data in two distinct ways: By passing a pointer-to-member of a particular start/end pair so that the called function operates on any pair without knowing which pair. The caller decides which pair. By passing a pointer-to-member of a particular int (i.e., only one int of any pair) so that the called function operates on any int without knowing either which int or which pair said int is from. The caller decides which int of which pair. Another example for the latter would be to sum, say, all para.end or all sent.start. Also, and importantly: for #2 above, I'd ideally like to pass only a single pointer-to-member to reduce the burden on the caller. Hence, me trying to figure something out using unions.

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  • How do you stop scripters from slamming your website hundreds of times a second?

    - by davebug
    [update] I've accepted an answer, as lc deserves the bounty due to the well thought-out answer, but sadly, I believe we're stuck with our original worst case scenario: CAPTCHA everyone on purchase attempts of the crap. Short explanation: caching / web farms make it impossible for us to actually track hits, and any workaround (sending a non-cached web-beacon, writing to a unified table, etc.) slows the site down worse than the bots would. There is likely some pricey bit of hardware from Cisco or the like that can help at a high level, but it's hard to justify the cost if CAPTCHAing everyone is an alternative. I'll attempt to do a more full explanation in here later, as well as cleaning this up for future searchers (though others are welcome to try, as it's community wiki). I've added bounty to this question and attempted to explain why the current answers don't fit our needs. First, though, thanks to all of you who have thought about this, it's amazing to have this collective intelligence to help work through seemingly impossible problems. I'll be a little more clear than I was before: This is about the bag o' crap sales on woot.com. I'm the president of Woot Workshop, the subsidiary of Woot that does the design, writes the product descriptions, podcasts, blog posts, and moderates the forums. I work in the css/html world and am only barely familiar with the rest of the developer world. I work closely with the developers and have talked through all of the answers here (and many other ideas we've had). Usability of the site is a massive part of my job, and making the site exciting and fun is most of the rest of it. That's where the three goals below derive. CAPTCHA harms usability, and bots steal the fun and excitement out of our crap sales. To set up the scenario a little more, bots are slamming our front page tens of times a second screenscraping (and/or scanning our rss) for the Random Crap sale. The moment they see that, it triggers a second stage of the program that logs in, clicks I want One, fills out the form, and buys the crap. In current (2/6/2009) order of votes: lc: On stackoverflow and other sites that use this method, they're almost always dealing with authenticated (logged in) users, because the task being attempted requires that. On Woot, anonymous (non-logged) users can view our home page. In other words, the slamming bots can be non-authenticated (and essentially non-trackable except by IP address). So we're back to scanning for IPs, which a) is fairly useless in this age of cloud networking and spambot zombies and b) catches too many innocents given the number of businesses that come from one IP address (not to mention the issues with non-static IP ISPs and potential performance hits to trying to track this). Oh, and having people call us would be the worst possible scenario. Can we have them call you? BradC Ned Batchelder's methods look pretty cool, but they're pretty firmly designed to defeat bots built for a network of sites. Our problem is bots are built specifically to defeat our site. Some of these methods could likely work for a short time until the scripters evolved their bots to ignore the honeypot, screenscrape for nearby label names instead of form ids, and use a javascript-capable browser control. lc again "Unless, of course, the hype is part of you

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  • Ruby on rails model and controllers inside of different namespaces

    - by Nelson LaQuet
    OK. This is insane. I'm new to RoR and I really want to get into it as everything about it that I have seen so far makes it more appealing to the type of work that I do. However, I can't seem to accomplish a very simple thing with RoR. I want these controlers: /admin/blog/entries (index/show/edit/delete) /admin/blog/categories (index/show/edit/delete) /admin/blog/comments (index/show/edit/delete) ... and so on And these models: Blog::Entry (table: blog_entries) Blog::Category (table: blog_categories) Blog::Comments (table: blog_comments) ... and so on Now, I have already gone though quite a bit of misery to make this work. My first attempt was with generating scaffolding (I'm using 2.2.2). I generated my scaffolding, but had to move my model, then fix the references to the model in my controller (see http://stackoverflow.com/questions/903258/ruby-on-rails-model-inside-namespace-cant-be-found-in-controller). That is already a big of a pain, but hey, I got it to work. Now though form_for won't work and I cannot figure out how to use the url helpers (I have no idea what these are called... they are the automatically generated methods that return URLs to controllers associated with a model). I cannot figure out what their name is. My model is Blog::Entries. I have tried to mess with the route.rb's map's resource method, but no luck. When I attempt to use form_for with my model, I get this error undefined method `blog_entries_path' for #<ActionView::Base:0xb6848080> Now. This is really quite frustrating. I am not going to completely destroy my code's organization in order to use this framework, and if I cannot figure out how to accomplish this simple task (I have been researching this for at least 5 hours) then I simply cannot continue. Are there any ideas on how to accomplish this? Thanks EDIT Here are my routes: admin_blog_entries GET /admin_blog_entries {:controller=>"admin_blog_entries", :action=>"index"} formatted_admin_blog_entries GET /admin_blog_entries.:format {:controller=>"admin_blog_entries", :action=>"index"} POST /admin_blog_entries {:controller=>"admin_blog_entries", :action=>"create"} POST /admin_blog_entries.:format {:controller=>"admin_blog_entries", :action=>"create"} new_admin_blog_entry GET /admin_blog_entries/new {:controller=>"admin_blog_entries", :action=>"new"} formatted_new_admin_blog_entry GET /admin_blog_entries/new.:format {:controller=>"admin_blog_entries", :action=>"new"} edit_admin_blog_entry GET /admin_blog_entries/:id/edit {:controller=>"admin_blog_entries", :action=>"edit"} formatted_edit_admin_blog_entry GET /admin_blog_entries/:id/edit.:format {:controller=>"admin_blog_entries", :action=>"edit"} admin_blog_entry GET /admin_blog_entries/:id {:controller=>"admin_blog_entries", :action=>"show"} formatted_admin_blog_entry GET /admin_blog_entries/:id.:format {:controller=>"admin_blog_entries", :action=>"show"} PUT /admin_blog_entries/:id {:controller=>"admin_blog_entries", :action=>"update"} PUT /admin_blog_entries/:id.:format {:controller=>"admin_blog_entries", :action=>"update"} DELETE /admin_blog_entries/:id {:controller=>"admin_blog_entries", :action=>"destroy"} DELE

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  • Scaling an image using the mouse in C#

    - by Gaax
    Hey guys... I'm trying to use the position of the mouse to calculate the scaling factor for scaling an image. Basically, the further you get away from the center of the image, the bigger it gets; and the closer to the center you get, the smaller it gets. I have some code so far but it's acting really strange and I have absolutely no more ideas. First I'll let you know, one thing I was trying to do is average out 5 distances to get a more smooth resize animation. Here's my code: private void pictureBoxScale_MouseMove(object sender, MouseEventArgs e) { if (rotateScaleMode && isDraggingToScale) { // For Scaling int sourceWidth = pictureBox1.Image.Width; int sourceHeight = pictureBox1.Image.Height; float dCurrCent = 0; // distance between the current mouse pos and the center of the image float dPrevCent = 0; // distance between the previous mouse pos and the center of the image System.Drawing.Point imgCenter = new System.Drawing.Point(); imgCenter.X = pictureBox1.Location.X + (sourceWidth / 2); imgCenter.Y = pictureBox1.Location.Y + (sourceHeight / 2); // Calculating the distance between the current mouse location and the center of the image dCurrCent = (float)Math.Sqrt(Math.Pow(e.X - imgCenter.X, 2) + Math.Pow(e.Y - imgCenter.Y, 2)); // Calculating the distance between the previous mouse location and the center of the image dPrevCent = (float)Math.Sqrt(Math.Pow(prevMouseLoc.X - imgCenter.X, 2) + Math.Pow(prevMouseLoc.Y - imgCenter.Y, 2)); if (smoothScaleCount < 5) { dCurrCentSmooth[smoothScaleCount] = dCurrCent; dPrevCentSmooth[smoothScaleCount] = dPrevCent; } if (smoothScaleCount == 4) { float currCentSum = 0; float prevCentSum = 0; for (int i = 0; i < 4; i++) { currCentSum += dCurrCentSmooth[i]; } for (int i = 0; i < 4; i++) { prevCentSum += dPrevCentSmooth[i]; } float scaleAvg = (currCentSum / 5) / (prevCentSum / 5); int destWidth = (int)(sourceWidth * scaleAvg); int destHeight = (int)(sourceHeight * scaleAvg); // If statement is for limiting the size of the image if (destWidth > (currentRotatedImage.Width / 2) && destWidth < (currentRotatedImage.Width * 3) && destHeight > (currentRotatedImage.Height / 2) && destWidth < (currentRotatedImage.Width * 3)) { AForge.Imaging.Filters.ResizeBilinear resizeFilter = new AForge.Imaging.Filters.ResizeBilinear(destWidth, destHeight); pictureBox1.Image = resizeFilter.Apply((Bitmap)currentRotatedImage); pictureBox1.Size = pictureBox1.Image.Size; pictureBox1.Refresh(); } smoothScaleCount = -1; } prevMouseLoc = e.Location; currentScaledImage = pictureBox1.Image; smoothScaleCount++; } }

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  • zoom a JPanel and all of its components

    - by user253530
    I have a big JPanel which holds many TileMapping objects (TileMapping extends JPanel). I want to zoom the big JPanel and all of its components to be scaled aswell. A TileMapping has an image which of course has to be zoomed as well. here is my TileMapping class public class TileMapping extends JPanel { private double zoom = 1.0; private Mapping mapping; private int height; private int width; private int xCoord; private int yCoord; TileMapping(Mapping m, int w, int h, int x, int y) { super(); mapping = m; height = h; width = w; this.xCoord = x; this.yCoord = y; this.setPreferredSize(new Dimension(w, h)); } public int getXcoord() { return xCoord; } public int getYcoord() { return yCoord; } public Mapping getMapping() { return mapping; } public void setMapping(Mapping m) { mapping = m; } public void originalSize() { zoom = 1; } public void zoomIn() { zoom += 0.2; } public void zoomOut() { zoom -= 0.2; } @Override public void paintComponent(Graphics g) { Graphics2D g2d = (Graphics2D) g; if (mapping.getImage() != null) { BufferedImage bg = mapping.getImage(); g2d.scale(zoom, zoom); g2d.drawImage(bg, 0, 0, width, height, this); } else { g2d.scale(zoom, zoom); this.setBackground(Color.white); } } } I need to know how i should continue this on the main JPanel which is populated using this code: This is part of a MapWindow class. if you carefully read the code you will understand what i'm talking about. Basically this is a Tile MapEditor and I am simulating a Tile as a JPanel which holds the mapping object (mapping is a binding between an ASCII character and an image) you place. private void populateMapPanel(Map map) { GridBagConstraints c = new GridBagConstraints(); mapPanel.setLayout(new GridBagLayout()); for (int i = 0; i < map.getMapGrid().getRows(); i++) { for (int j = 0; j < map.getMapGrid().getColumns(); j++) { tile = new TileMapping(map.getMapItem(i, j), cellSize, cellSize, i, j); tile.setBorder(new LineBorder(Color.black)); tile.addMouseListener(this); tile.addMouseMotionListener(this); c.gridx = i; c.gridy = j; mapPanel.add(tile, c); } } mapPanel.validate(); mapPanel.repaint(); } I need to know how to do the following: 1. When the user presses Zoom In the mapPanel should zoom in and also all the images in the smaller panels. 2. when the user click and drag over the TileMappings an image should be painted on them and this image should get scaled of course if the mapPanel is zoomed. Pseudo code, ideas, hints, java code ...anything would be helpful. Thank you

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  • How to generate a Program template by generating an abstract class

    - by Byron-Lim Timothy Steffan
    i have the following problem. The 1st step is to implement a program, which follows a specific protocol on startup. Therefore, functions as onInit, onConfigRequest, etc. will be necessary. (These are triggered e.g. by incoming message on a TCP Port) My goal is to generate a class for example abstract one, which has abstract functions as onInit(), etc. A programmer should just inherit from this base class and should merely override these abstract functions of the base class. The rest as of the protocol e.g. should be simply handled in the background (using the code of the base class) and should not need to appear in the programmers code. What is the correct design strategy for such tasks? and how do I deal with, that the static main method is not inheritable? What are the key-tags for this problem? (I have problem searching for a solution since I lack clear statements on this problem) Goal is to create some sort of library/class, which - included in ones code - results in executables following the protocol. EDIT (new explanation): Okay let me try to explain more detailled: In this case programs should be clients within a client server architecture. We have a client server connection via TCP/IP. Each program needs to follow a specific protocol upon program start: As soon as my program starts and gets connected to the server it will receive an Init Message (TcpClient), when this happens it should trigger the function onInit(). (Should this be implemented by an event system?) After onInit() a acknowledgement message should be sent to the server. Afterwards there are some other steps as e.g. a config message from the server which triggers an onConfig and so on. Let's concentrate on the onInit function. The idea is, that onInit (and onConfig and so on) should be the only functions the programmer should edit while the overall protocol messaging is hidden for him. Therefore, I thought using an abstract class with the abstract methods onInit(), onConfig() in it should be the right thing. The static Main class I would like to hide, since within it e.g. there will be some part which connects to the tcp port, which reacts on the Init Message and which will call the onInit function. 2 problems here: 1. the static main class cant be inherited, isn it? 2. I cannot call abstract functions from the main class in the abstract master class. Let me give an Pseudo-example for my ideas: public abstract class MasterClass { static void Main(string[] args){ 1. open TCP connection 2. waiting for Init Message from server 3. onInit(); 4. Send Acknowledgement, that Init Routine has ended successfully 5. waiting for Config message from server 6..... } public abstract void onInit(); public abstract void onConfig(); } I hope you get the idea now! The programmer should afterwards inherit from this masterclass and merely need to edit the functions onInit and so on. Is this way possible? How? What else do you recommend for solving this? EDIT: The strategy ideo provided below is a good one! Check out my comment on that.

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  • Background custom button animation using WPF

    - by ajtp
    Hi, I am using Resources dictionaries to customize my controls and apply them as themes to my WPF application so I have implemented one for the button control. A code snippet for my custom Button.xaml is (its namespace is MyWPFApp.Themes): <ResourceDictionary ...> ... <LinearGradientBrush x:Key="NormalBackground" EndPoint="0,1" StartPoint="0,0"> <GradientStop Color="sc#1.000000, 0.250141, 0.333404, 0.884413" Offset="0"/> <GradientStop Color="#ccffffff" Offset="1"/> </LinearGradientBrush> <LinearGradientBrush x:Key="OverBackground" EndPoint="0,1" StartPoint="0,0"> <GradientStop Color="#da5e69" Offset="0"/> <GradientStop Color="#d12e27" Offset="1"/> </LinearGradientBrush> <LinearGradientBrush x:Key="ClickBackground" EndPoint="0,1" StartPoint="0,0"> <GradientStop Color="#d22828" Offset="1"/> <GradientStop Color="#b00000" Offset="0"/> </LinearGradientBrush> ... <Style TargetType="{x:Type Button}"> ... <Setter Property="Background" Value="{StaticResource NormalBackground}"/> ... </Style> </ResourceDictionary> and I apply it by doing the following from my main Application.xaml: <Application ...> <Application.Resources> <ResourceDictionary> <ResourceDictionary.MergedDictionaries> <ResourceDictionary Source="Themes/Button.xaml"/> </ResourceDictionary.MergedDictionaries> </ResourceDictionary> </Application.Resources> </Application> What I try to do is to change background color, for example, from White to Lime for 6 seconds by doing this from one of my pages, MyPage1.xaml, using StoryBoard: <Page x:Class="MyWPFApp.Pages.MyPage1" ...> <Page.Resources> ... <Storyboard x:Key="sbBtnResetHC" Storyboard.TargetName="BtnResetHC" Storyboard.TargetProperty="(Background). (SolidColorBrush.Color)"> <ColorAnimation From="Pink" To="Green" By="Blue" Duration="0:0:6" RepeatBehavior="3x" AutoReverse="True" /> </Storyboard> ... </Page.Resources> ... <Button x:Name="BtnResetHC" Click="BtnResetHC_Click" Width="90" Visibility="Collapsed" /> ... </Page> and from code behind MyPage1.xaml.cs I start animation by doing this: Storyboard sb = (Storyboard)FindResource("sbBtnResetHC"); sb.Begin(); when the button is visible, but it doesn't work for me. Any ideas what's wrong? Maybe another possibility, as I want the animation starts on button visible is to do a trigger for the button over Visibility property, Is it a better solution? Thanks a lot!

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  • Polymorphism problem: How to check type of derived class?

    - by malymato
    Hi, this is my first question here :) I know that I should not check for object type but instead use dynamic_cast, but that would not solve my problem. I have class called Extension and interfaces called IExtendable and IInitializable, IUpdatable, ILoadable, IDrawable (the last four are basicly the same). If Extension implements IExtendable interface, it can extend itself with different Extension objects. The problem is that I want to allow the Extension which implements IExtendable to extend only with Extension that implements the same interfaces as the original Extension. You probably don't unerstand that mess so I try to explain it with code: class IExtendable { public: IExtendable(void); void AddExtension(Extension*); void RemoveExtensionByID(unsigned int); vector<Extension*>* GetExtensionPtr(){return &extensions;}; private: vector<Extension*> extensions; }; class IUpdatable { public: IUpdatable(void); ~IUpdatable(void); virtual void Update(); }; class Extension { public: Extension(void); virtual ~Extension(void); void Enable(){enabled=true;}; void Disable(){enabled=false;}; unsigned int GetIndex(){return ID;}; private: bool enabled; unsigned int ID; static unsigned int _indexID; }; Now imagine the case that I create Extension like this: class MyExtension : public Extension, public IExtendable, public IUpdatable, public IDrawable { public: MyExtension(void); virtual ~MyExtension(void); virtual void AddExtension(Extension*); virtual void Update(); virtual void Draw(); }; And I want to allow this class to extend itself only with Extensions that implements the same interfaces (or less). For example I want it to be able to take Extension which implements IUpdatable; or both IUpdatable and IDrawable; but e.g. not Extension which implements ILoadable. I want to do this because when e.g. Update() will be called on some Extension which implements IExtendable and IUpdateable, it will be also called on these Extensions which extends this Extension. So when I'm adding some Extension to Extension which implements IExtendable and some of the IUpdatable, ILoadable... I'm forced to check if Extension that is going to be add implements these interfaces too. So In the IExtendable::AddExtension(Extension*) I would need to do something like this: void IExtendable::AddExtension(Extension* pEx) { bool ok = true; // check wheather this extension can take pEx // do this with every interface if ((*pEx is IUpdatable) && (*this is_not IUpdatable)) ok = false; if (ok) this->extensions.push_back(pEx); } But how? Any ideas what would be the best solution? I don't want to use dynamic_cast and see if it returns null... thanks

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  • Scaling an image using the mouse in a WinForms application?

    - by Gaax
    I'm trying to use the position of the mouse to calculate the scaling factor for scaling an image. Basically, the further you get away from the center of the image, the bigger it gets; and the closer to the center you get, the smaller it gets. I have some code so far but it's acting really strange and I have absolutely no more ideas. First I'll let you know, one thing I was trying to do is average out 5 distances to get a more smooth resize animation. Here's my code: private void pictureBoxScale_MouseMove(object sender, MouseEventArgs e) { if (rotateScaleMode && isDraggingToScale) { // For Scaling int sourceWidth = pictureBox1.Image.Width; int sourceHeight = pictureBox1.Image.Height; float dCurrCent = 0; // distance between the current mouse pos and the center of the image float dPrevCent = 0; // distance between the previous mouse pos and the center of the image System.Drawing.Point imgCenter = new System.Drawing.Point(); imgCenter.X = pictureBox1.Location.X + (sourceWidth / 2); imgCenter.Y = pictureBox1.Location.Y + (sourceHeight / 2); // Calculating the distance between the current mouse location and the center of the image dCurrCent = (float)Math.Sqrt(Math.Pow(e.X - imgCenter.X, 2) + Math.Pow(e.Y - imgCenter.Y, 2)); // Calculating the distance between the previous mouse location and the center of the image dPrevCent = (float)Math.Sqrt(Math.Pow(prevMouseLoc.X - imgCenter.X, 2) + Math.Pow(prevMouseLoc.Y - imgCenter.Y, 2)); if (smoothScaleCount < 5) { dCurrCentSmooth[smoothScaleCount] = dCurrCent; dPrevCentSmooth[smoothScaleCount] = dPrevCent; } if (smoothScaleCount == 4) { float currCentSum = 0; float prevCentSum = 0; for (int i = 0; i < 4; i++) { currCentSum += dCurrCentSmooth[i]; } for (int i = 0; i < 4; i++) { prevCentSum += dPrevCentSmooth[i]; } float scaleAvg = (currCentSum / 5) / (prevCentSum / 5); int destWidth = (int)(sourceWidth * scaleAvg); int destHeight = (int)(sourceHeight * scaleAvg); // If statement is for limiting the size of the image if (destWidth > (currentRotatedImage.Width / 2) && destWidth < (currentRotatedImage.Width * 3) && destHeight > (currentRotatedImage.Height / 2) && destWidth < (currentRotatedImage.Width * 3)) { AForge.Imaging.Filters.ResizeBilinear resizeFilter = new AForge.Imaging.Filters.ResizeBilinear(destWidth, destHeight); pictureBox1.Image = resizeFilter.Apply((Bitmap)currentRotatedImage); pictureBox1.Size = pictureBox1.Image.Size; pictureBox1.Refresh(); } smoothScaleCount = -1; } prevMouseLoc = e.Location; currentScaledImage = pictureBox1.Image; smoothScaleCount++; } }

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  • Why do some Flask session values disappear from the session after closing the browser window, but then reappear later without me adding them?

    - by Ben
    So my understanding of Flask sessions is that I can use it like a dictionary and add values to a session by doing: session['key name'] = 'some value here' And that works fine. On a route I have the client call using AJAX post, I assign a value to the session. And it works fine. I can click on various pages of my site and the value stays in the session. If I close the browser window however, and then go back to my site, the session value I had in there is gone. So that's weird and you would think the problem is the session isn't permanent. I also implemented Flask-Openid and that uses the session to store information and that does persist if I close the browser window and open it back up again. I also checked the cookie after closing the browser window, but before going back to my site, and the cookie is indeed still there. Another odd piece of behaviour (which may be related) is that some values I have written to the session for testing purposes will go away when I access the AJAX post route and assign the correct value. So that is odd, but what is truly weird is that when I then close the browser window and open it up again, and have thus lost the value I was trying to retain, the ones that I lost previously actually return! They aren't being reassigned because there's no code in my Python files to reassign those values. Here is some outputs to helper make it clearer. They are all outputed from a route for a real page, and not the AJAX post route I mentioned above. This is the output after I have assigned the value I want to store in the session. The value key is 'userid' - all the other values are dummy ones I have added in trying to solve this problem. 'userid': 8 will stay in the session as long as I don't close the browser window. I can access other routes and the value will stay there just like it should. ['session.=', <SecureCookieSession {'userid': 8, 'test_variable_num': 102, 'adding using before request': 'hi', '_permanent': True, 'test_variable_text': 'hi!'}>] If I do close the browser window, and go back into the site, but without redoing the AJAX post request, I get this output: ['session.=', <SecureCookieSession {'adding using before request': 'hi', '_permanent': True, 'yo': 'yo'}>] The 'yo' value was not in the first first output. I don't know where it came from. I searched my code for 'yo' and there is no instances of me assigning that value anywhere. I think I may have added it to the session days ago. So it seems like it is persisting, but being hidden when the other values are written. And this last one is me accessing the AJAX post route again, and then going to the page that prints out the keys using debug. Same output as the first output I pasted above, which you would expect, and the 'yo' value is gone again (but it will come back if I close the browser window) ['session.=', <SecureCookieSession {'userid': 8, 'test_variable_num': 102, 'adding using before request': 'hi', '_permanent': True, 'test_variable_text': 'hi!'}>] I tested this in both Chrome and Firefox. So I find this all weird and I am guessing it stems from a misunderstanding of how sessions work. I think they're dictionaries and I can write dictionary values into them and retrieve them days later as long as I set the session to permanent and the cookie doesn't get deleted. Any ideas why this weird behaviour is happening?

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  • Recursive XSD Help

    - by Alon
    Hi, i'm trying to learn a little bit XSD and I'm trying to create a XSD for this xml: <Document> <TextBox Name="Username" /> <TextBox Name="Password" /> </Document> ... so there's an element, which is an abstract complex type. Every element have elements and so on. Document and TextBox are extending Element. I trid this: <?xml version="1.0" encoding="utf-8" ?> <xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema"> <xs:element name="Document"> <xs:complexType> <xs:complexContent> <xs:extension base="Element"> </xs:extension> </xs:complexContent> </xs:complexType> </xs:element> <xs:complexType name="Element" abstract="true"> <xs:sequence minOccurs="0" maxOccurs="unbounded"> <xs:element name="Element" type="Element"></xs:element> </xs:sequence> </xs:complexType> <xs:complexType name="TextBox"> <xs:complexContent> <xs:extension base="Element"> <xs:attribute name="Name" type="xs:string" /> </xs:extension> </xs:complexContent> </xs:complexType> </xs:schema> I compiled it to C# with Xsd2Code, and now I try to deserialize it: var serializer = new XmlSerializer(typeof(Document)); var document = (Document)serializer.Deserialize(new FileStream("Document1.xml", FileMode.Open)); foreach (var element in document.Element1) { Console.WriteLine(((TextBox)element).Name); } Console.ReadLine(); and it dosen't print anything. When I try to serialize it like so: var serializer = new XmlSerializer(typeof(Document)); var document = new Document(); document.Element1 = new List<Element>(); document.Element1.Add(new TextBox() { Name = "abc" }); serializer.Serialize(new FileStream("d.xml", FileMode.Create), document); ...the output is: <?xml version="1.0"?> <Document xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema"> <Element1> <Element xsi:type="TextBox"> <Element1 /> <Name>abc</Name> </Element> </Element1> </Document> When it should be: <Document> <TextBox Name="abc" /> </Document> Any ideas how to fix the xsd or another code generator? Thanks.

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  • jQuery AutoComplete (jQuery UI 1.8rc3) with ASP.NET web service

    - by user296640
    Currently, I have this version of the autocomplete control working when returning XML from a .ashx handler. The xml looks like this: <?xml version="1.0" encoding="UTF-8" standalone="no" ?> <States> <State> <Code>CA</Code> <Name>California</Name> </State> <State> <Code>NC</Code> <Name>North Carolina</Name> </State> <State> <Code>SC</Code> <Name>South Carolina</Name> </State> The autocomplete code looks like this: $('.autocompleteTest').autocomplete( { source: function(request, response) { var list = []; $.ajax({ url: "http://commonservices.qa.kirkland.com/StateLookup.ashx", dataType: "xml", async: false, data: request, success: function(xmlResponse) { list = $("State", xmlResponse).map(function() { return { value: $("Code", this).text(), label: $("Name", this).text() }; }).get(); } }); response(list); }, focus: function(event, ui) { $('.autocompleteTest').val(ui.item.label); return false; }, select: function(event, ui) { $('.autocompleteTest').val(ui.item.label); $('.autocompleteValue').val(ui.item.value); return false; } }); For various reasons, I'd rather be calling an ASP.NET web service, but I can't get it to work. To change over to the service (I'm doing a local service to keep it simple), the start of the autocomplete code is: $('.autocompleteTest').autocomplete( { source: function(request, response) { var list = []; $.ajax({ url: "/Services/GeneralLookup.asmx/StateList", dataType: "xml", This code is on a page at the root of the site and the GeneralLookup.asmx is in a subfolder named Services. But a breakpoint in the web service never gets hit, and no autocomplete list is generated. In case it makes a difference, the XML that comes from the asmx is: <?xml version="1.0" encoding="utf-8" ?> <string xmlns="http://www.kirkland.com/"><State> <Code>CA</Code> <Name>California</Name> </State> <State> <Code>NC</Code> <Name>North Carolina</Name> </State> <State> <Code>SC</Code> <Name>South Carolina</Name> </State></string> Functionally equivalent since I never use the name of the root node in the mapping code. I haven't seen anything in the jQuery docs about calling a .asmx service from this control, but a .ajax call is a .ajax call, right? I've tried various different paths to the .asmx (~/Services/), and I've even moved the service to be in the same path to eliminate these issues. No luck with either. Any ideas?

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  • Error Loading Simple XML

    - by Rooneyl
    I have an xml document (generated from msword 2010), which I am trying to process using simple xml. Sample of xml: <?xml version="1.0" encoding="UTF-8" standalone="yes"?> <w:document xmlns:wpc="http://schemas.microsoft.com/office/word/2010/wordprocessingCanvas" xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:r="http://schemas.openxmlformats.org/officeDocument/2006/relationships" xmlns:m="http://schemas.openxmlformats.org/officeDocument/2006/math" xmlns:v="urn:schemas-microsoft-com:vml" xmlns:wp14="http://schemas.microsoft.com/office/word/2010/wordprocessingDrawing" xmlns:wp="http://schemas.openxmlformats.org/drawingml/2006/wordprocessingDrawing" xmlns:w10="urn:schemas-microsoft-com:office:word" xmlns:w="http://schemas.openxmlformats.org/wordprocessingml/2006/main" xmlns:w14="http://schemas.microsoft.com/office/word/2010/wordml" xmlns:wpg="http://schemas.microsoft.com/office/word/2010/wordprocessingGroup" xmlns:wpi="http://schemas.microsoft.com/office/word/2010/wordprocessingInk" xmlns:wne="http://schemas.microsoft.com/office/word/2006/wordml" xmlns:wps="http://schemas.microsoft.com/office/word/2010/wordprocessingShape" mc:Ignorable="w14 wp14"> <w:body> <w:p w:rsidR="005B1098" w:rsidRDefault="005B1098"/> <w:p w:rsidR="00F254A4" w:rsidRDefault="00F254A4"/> <w:p w:rsidR="00F254A4" w:rsidRPr="008475A1" w:rsidRDefault="00C15492" w:rsidP="008475A1"> <w:pPr> <w:jc w:val="center"/> <w:rPr> <w:b/> <w:sz w:val="44"/> <w:szCs w:val="44"/> </w:rPr> </w:pPr> <w:r w:rsidRPr="008475A1"> <w:rPr> <w:b/> <w:sz w:val="44"/> <w:szCs w:val="44"/> </w:rPr> <w:t>Test file</w:t> </w:r> </w:p> <w:p w:rsidR="00C15492" w:rsidRPr="008475A1" w:rsidRDefault="00C15492" w:rsidP="008475A1"> <w:pPr> <w:jc w:val="center"/> <w:rPr> <w:sz w:val="20"/> <w:szCs w:val="20"/> </w:rPr> </w:pPr> <w:r w:rsidRPr="008475A1"> <w:rPr> <w:sz w:val="20"/> <w:szCs w:val="20"/> </w:rPr> <w:t>another paragraph</w:t> </w:r> </w:p> </w:body> </w:document> I am trying to open it using: if(!$simple_xml = simplexml_load_file($content)){ trigger_error('Error reading XML file',E_USER_ERROR); } else { echo 'loaded'; } And get the error: Message: simplexml_load_file(): I/O warning : failed to load external entity " Test file another paragraph " Any ideas?

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  • Ruby on Rails is complaining about a method that doesn't exist that is built into Active Record. Wha

    - by grg-n-sox
    This will probably just be a simple problem and I am just blind or an idiot but I could use some help. So I am going over some basic guides in Rails, reviewing the basics and such for an upcoming exam. One of the guides included was the sort-of-standard getting started guide over at guide.rubyonrails.org. Here is the link if you need it. Also all my code is for my app is from there, so I have no problem releasing any of my code since it should be the same as shown there. I didn't do a copy paste, but I basically was typing with Vim in one half of my screen and the web page in the other half, typing what I see. http://guides.rubyonrails.org/getting_started.html So like I said, I am going along the guide when I noticed past a certain point in the tutorial, I was always getting an error on the site. To find the section of code, just hit Ctrl+f on the page (or whatever you have search/find set to) and enter "accepts_". This should immediately direct you to this chunk of code. class Post < ActiveRecord::Base validates_presence_of :name, :title validates_length_of :title, :minimum => 5 has_many :comments has_many :tags accepts_nested_attributes_for :tags, :allow_destroy => :true , :reject_if => proc { |attrs| attrs.all? { |k, v| v.blank? } } end So I tried putting this in my code. It is in ~/Rails/blog/app/models/post.rb in case you are wondering. However, even after all the other code I put in past that in the guide, hoping I was just missing some line of code that would come up later in the guide. But nothing, same error every time. This is what I get. NoMethodError in PostsController#index undefined method `accepts_nested_attributes_for' for #<Class:0xb7109f98> /usr/lib/ruby/gems/1.8/gems/activerecord-2.2.2/lib/active_record/base.rb:1833:in `method_missing' app/models/post.rb:7 app/controllers/posts_controller.rb:9:in `index' Request Parameters: None Response Headers: {"Content-Type"=>"", "cookie"=>[], "Cache-Control"=>"no-cache"} Now, I copied the above code from the guide. The two code sections I edited mentioned in the error message I will paste as is below. class PostsController < ApplicationController # GET /posts # GET /posts.xml before_filter :find_post, :only => [:show, :edit, :update, :destroy] def index @posts = Post.find(:all) # <= the line 9 referred to in error message respond_to do |format| format.html # index.html.erb format.xml { render :xml => @posts } end end class Post < ActiveRecord::Base validates_presence_of :name, :title validates_length_of :title, :minimum => 5 has_many :comments has_many :tags accepts_nested_attributes_for :tags, :allow_destroy => :true , # <= problem :reject_if => proc { |attrs| attrs.all? { |k, v| v.blank? } } end Also here is gem local gem list. I do note that they are a bit out of date, but the default Rails install any of the school machines (an environment likely for my exam) is basically 'gem install rails --version 2.2.2' and since they are windows machines, they come with all the normal windows ruby gems that comes with the ruby installer. However, I am running this off a Debian virtual machine of mine, but trying to set it up similarly and I figured the windows ruby gems wouldn't change anything in Rails. *** LOCAL GEMS *** actionmailer (2.2.2) actionpack (2.2.2) activerecord (2.2.2) activeresource (2.2.2) activesupport (2.2.2) gem_plugin (0.2.3) hpricot (0.8.2) linecache (0.43) log4r (1.1.7) ptools (1.1.9) rack (1.1.0) rails (2.2.2) rake (0.8.7) sqlite3-ruby (1.2.3) So any ideas on what the problem is? Thanks in advanced.

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