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• Google App Engine - Calling getSession().invalidate(); causes app engine to act weird.

  - by Spines

  When I call hreq.getSession().invalidate(); app engine slows down tremendously. I looked at appstats and saw that on a page where no database calls are made, it was calling memcache.get and datastore.get 23 times each. The stack trace of these calls showed that it was being called from getSession(). This only happens on the production server. Every time I make a request to a page, it makes a bunch of memcache and datastore calls. This slow down goes away though when i restart my browser. When I changed the code to simply set the isLoggedIn property of the session to false, rather than calling hreq.getSession().invalidate();, everything was fine. As a test, I didn't invalidate my session, but I changed the value of my browser's session cookie, and the app engine exhibited the same behavior. Is this a bug with the app engine?

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• MyService.svc?wsdl shows 400 Bad Request IIS 7.5

  - by Omu

  I'm on Windows 7 Ultimate IIS 7.5 I have deployed the services to the web server and when I try them in IE like this: MyService.svc?wsdl I get the 400 "Bad Request" page I should get the description of the web service instead, anybody knows how to fix this ?

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• IWebBrowser: How to specify the encoding when loading html from a stream?

  - by Ian Boyd

  Using the concepts from the sample code provided by Microsoft for loading HTML content into an IWebBrowser from an IStream using the web browser's IPersistStreamInit interface: HRESULT LoadWebBrowserFromStream(IWebBrowser* pWebBrowser, IStream* pStream) { [snip] } How can one specify the encoding of the html inside the IStream? The IStream will contain a series of bytes, but the problem is what do those bytes represent? They could, for example, contain bytes where: each byte represents a character from the current Windows code-page (e.g. 1252) each byte could represent a character from the ISO-8859-1 character set the bytes could represent UTF-8 encoded characters every 2 bytes could represent a character, using UTF-16 encoding In my particular case, i am providing the IWebBrowser an IStream that contains a series of double-bytes characters (UTF-16), but the browser (incorrectly) believes that UTF-8 encoding is in effect. This results in garbled characters.

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• Embedding IWebbrowser2 ATL interface control in C# windows mobile smart device application

  - by Ramanand Bhat

  Hi All, We have developed an ATL smart device project for to save the web page locally in windows mobile device. The application uses native IWebbrowser2 ATL interface control to browse the web page and save the web page complete. Now we need to have our UI and other user interface controls to be designed and developed using C# also we have some UI module already available in C#. So please provide us a method to embed native IWebbrowser2 ATL interface control to the C# smart device project. your feedback will be greatly appreciated. Thanks, Ramanand Bhat.

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• Problem with Apache Commons Id UUID Version 1 generation

  - by Pekka Mattila

  My problem is to generate version 1 UUIDs. We use Jetty 6.x, Maven (to start Jetty among other things) and Apache Commons ID (to generate UUID version 1 from the current time). Apache Commons ID requires a configuration file that is told to the JVM, using a parameter, e.g. 'org.apache.commons.id.uuid.config.resource.filename=commons-id-uuid.xml'. I checked the Apache Commons ID code and it tries to find the file from the classpath. Jetty's documentation states that WEB-INF/lib and WEB-INF/classes are in the classpath. The 'commons-id-uuid.xml' can be found from the deployed war file from the root of WEB-INF/classes directory but Jetty cannot load it: Message: java.lang.RuntimeException: java.lang.IllegalStateException: commons-id-uuid.xml loaded as system resource is null Jetty was started using the following command: mvn jetty:run -Dorg.apache.commons.id.uuid.config.resource.filename=commons-id-uuid.xml Any idea what is going wrong? We just need to generate UUID version 1 identifiers. Any suggestions?

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• Should I replace string patterns in asp.net mvc using a custom viewengine?

  - by Roger Rogers

  Have an ASP.NET MVC site that is localized. The localization functionality adds the two digit language ID to the URL, e.g. /es/Page. If no language Id is found in the URL, the site switches to the user's browser culture. All's good. However, the site's hyperlinks, a mixture of hard-coded href tags, actionlinks, etc., don't include the base language ID, so when clicking through the site the set culture is lost, and the site reverts to the user's browser culture. My (lazy) thought is to replace all href values, that don't point to an external site, with the localized URL (e.g. include the /es/). Otherwise, all site links will need to be updated to include the culture code. Is this just plain dumb? Or, reasonable, and should be done using a custom view engine, or some other approach?

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• connect remotely to apache2 on ubuntu 10.04

  - by ronakin

  I've apache2 server installed on a machine that connected to two different networks, therefore it has two different addresses: 192.168.1.111 (static ip on ethernet network) and 109.253.78.211. when connecting through 109.253.78.211 on the browser, the web pages are displayed perfectly, However, when connecting through 109.253.78.211 the web pages are displayed partially. I've not installed any firewalls. I'll really appreciate if you could redirect me to checks I should commit to reach the source of the problem. Thank you :)

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• How to select saxon TransformerFactory in Java

  - by pAkY88

  In my web application I need to use Saxon TransformerFactory to use XSLT 2.0 but I can't use setProperty method because I haven't this right on the web server and there is a Security Manager. So i have read that it's possible to do this: Use the Services API (as detailed in the JAR specification), if available, to determine the classname. The Services API will look for a classname in the file META-INF/services/javax.xml.transform.TransformerFactory in jars available to the runtime. I found this file in WEB-INF/lib/saxon9.jar but when I istantiate a TransformerFactory is always selected default factory and not saxon factory. How can I select Saxon Transformer Factory? Thanks

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• onbeforeunload in safari does not run code server side

  - by Deepa

  On browser close or F5, I have to perform some code on server side For this I have a button. On click of that button which has onclientclick and onclick functions written. I also wrote an event on window.onbeforeunload which does a button.click(). window.onbeforeunload=function(e) { button.click() } My problem is that this runs the code of the client side click function of the button, however server side code does not get executed. This happens only when i close the browser. When I do F5 it works perfectly. Also this happens only on Safari. In FF and mozila it works perfectly . How can i

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• How to monitor the total number of SQL Server logins

  - by Shiraz Bhaiji

  We have an SQL Server 2005 that is the backend of a web application. The application is partly SharePoint and partly web services accessing the database via Entity Framework. In the performance monitor I am seeing average SQL Logins is ca, 60 per second (max 170), but the average logouts is less than 1. Where can I see the total number of SQL Server logins? Anyone have an idea what could be causing this?

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• How to deal with 100's or 1000's of virtual hosts

  - by anton

  I am curious to know how services such as heroku manage 1000's of virtual hosts - ie if you create a web site/app, and put it up on these services, you get your own virtual host name - foo.heroku.com etc (the same applies to many other sites that have vanity URLs). I know with various web servers and proxies you can configure as many virtual hosts as you want - but there must be some upper limit to this ? Do they programmatically add virtual hosts - perhaps spreading the load? Or are there other solutions.

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• TeamCity for continuous integration with Visual Studio 2010 solutions/projects

  - by JeffryEngberg

  I am running TeamCity build 5.1.1 on a virtual machine that also hosts our SVN environment. A team I support has recently made the move from Visual Studio 2008/Silverlight 3.0 to Visual Studio 2010/Silverlight 4.0 and when investigating how to do continuous integration with Visual Studio 2010 solutions/projects, it is not as cut and dried as it appeared to be in Visual Studio 2008. Previously I was using Web Deployment Projects and targeting different Release Configurations in TeamCity, which would use the Web Deployment Project to package/deploy the code to our various environments. However when checking out the new Publish ability in Visual Studio 2010 I cannot find a way to specify which location to deploy to. Does everything need to be done in MSBuild now (in the solution file or maybe the Web project file?). If anyone has any examples of how they've done Continuous Integration using TeamCity and Visual Studio 2010, it would be greatly appreciated as I am coming up blank at the moment.

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• "Could not load file or assembly 'XXX.YYY' or one of its dependencies. The system cannot find the file specified."

  - by Niall Collins

  I have a .net visual studio solution with a number of projects (class libraries and a web application). I did some refractoring which moved files between projects, created new projects, deleted ones not being used and renamed some existing projects. The solution builds without an issue but when I run the web application, the following exception occurs: "Could not load file or assembly 'XXX.YYY' or one of its dependencies. The system cannot find the file specified." The project called XXX.YYY which was deleted in the refractoring outputed a dll called XXX.YYY. But this isnt used anywhere in the application. I deleted the web applications obj directory and bin folder and rebuild but it still occurs. Anyone have any ideas when this might be occurring, any tips??

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• Is it possible to write C# code as below and send email using network in different country?

  - by kedar karthik

  Is it possible to write C# code as below and send email using mnetwork in different country? MSExchangeWebServiceURL = mail.something.com/ews/exchange.asmx It's a web service URL. This works great when I run the same code from home network, my friends home network anywhere around, but when I run it from my client's location in Columbia it fails. I have a valid user name and password on that Exchange Server. Is there any configuration that I can set to achieve this? BTW this code below works when I run it within office network and any network within any home network. I have tried it at least with five friends network in Plano, Texas. I want this code to work running from any network in another country. My client in Columbia can connect to the web service using a browser using the same user name and password, but when I run the code above it is not able to connect to our web service.

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• ESRI frameworks: java vs javascript

  - by Luke

  I'm about to develop a web mapping application with ESRI Products like ArcGIS Server and Image Server. I can't find a good comparison between the Java Web ADF and the Javascript Framework. They're of course different because one is a full environment and the other is only client side but it's much more concise and the step to start is minimal. Another problem is that the Java Web ADF is not compatible with our current application server (JBoss 4.2.2) and require an old 4.0.2 version. Someone out there has experience that can help me? Many thanks.

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• Grails and PermGen issue with g:link and g:render

  - by Alexi Groove

  I've been running grails for sometime without any issues but recently after an upgrade to Grails 1.1.1, I've encountered the dreaded PermGen errors. Prior to the upgrade, no such issue. The error seems to be happening when the <g:link> and <g:render> tags are used in a GSP although I'm not sure it's indicative that this is the issue but more of the fact that it ran out of space when these tags were being rendered. Typically, everyone who encounters PermGen errors recommend increasing your java environment options -- but what maybe the source of the issue? Is it a Grails 1.1/hibernate/spring problem? The error: 2010-04-20 05:37:03,962 INFO [STDOUT] 05:37:03,961 ERROR [GroovyPagesServlet] Error processing GSP: Error executing tag <g:render>: org.codehaus.groovy.grails.web.taglib.exceptions.GrailsTagException: Error executing tag <g:link>: java.lang.OutOfMemoryError: PermGen space org.codehaus.groovy.grails.web.taglib.exceptions.GrailsTagException: Error executing tag <g:render>: org.codehaus.groovy.grails.web.taglib.exceptions.GrailsTagException: Error executing tag <g:link>: java.lang.OutOfMemoryError: PermGen space

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• FTP in NetBeans 6.1

  - by Ross

  Is there an FTP browser hiding away in NetBeans 6.1? The help manual doesn't even suggest FTP exists. All I've been able to find so far is a tree viewer in the Services panel (no edit controls) and the ability to upload projects, folders and specific files from the Projects/Files views. Is there anywhere to delete or rename or will I have to keep switching back to my browser? I can see from the previews that there's a nice FTP controller in 6.5 but I'm not desperate enough to completely convert to a beta (yet).

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• @Android display /res/viewable in WebView

  - by MikeNereson

  I am throwing HTML to a webview to render. In the HTML I need to load an image that I have in /res/drawable. I have /res/drawable/my_image.png and code such as this: final WebView browser = (WebView) findViewById(R.id.my_webview); String html = new MyHelper(myObject).getHtml(); browser.loadDataWithBaseURL("", html, "text/html", "UTF-8", ""); Where the String html has something like: <html><head> <h1>Here is the image</h1> <img src="my_image.png" /> </head><html> The question is, what should that image src attribute be to refer to the image in /res/drawable ~Thanks

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• JQuery and Nokia :)

  - by Radhika

  Hi I was trying to mobilise my website and I ran into an issue with Jquery. When I was trying to perform a jquery call (.$ajax) it was not getting rendered. This is the part of the code var returnData = ''; $.ajax({url: './indexSubmit.php', async: false, dataType: 'json', data:{flag:'vehicleInfo', vehicleId:xVehicleId}, success: function(data,textStatus){ if(textStatus != 'success'){ alert('Error: '+ textStatus); return; } returnData = data; I am not sure, but I guess I need to install jquery in the browser. If yes, can I automatically download and install jquery in the browser using some javascript?

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• How to set timeout with python-mechanize?

  - by Michal Cihar

  I'm using python-mechanize to scrape some web sites, which sometime simply don't respond to requests and these requests stay open too long, so I need to limit timeout for these requests. While using urlopen method, the timeout can be set using timeout parameter, but I have not found easy way for doing it with high level API such as submit or click methods. Ideally the timeout would be set just once for whole browser class and all calls would honor that. It would be probably possible to customize this by passing custom request_class to every click and submit call, but this would just pollute the code, so I'm looking for nicer solution for setting timeout for mechanize's browser class (and no, I don't want to change default socket timeout using socket.setdefaulttimeout).

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• Lighttpd wont restart due to an fastcgi.server error

  - by Mint

  Here is what comes up when I try to restart lighttpd user:/# /etc/init.d/lighttpd restart Stopping web server: lighttpd. Starting web server: lighttpdDuplicate config variable in conditional 0 global: fastcgi.server 2010-02-13 22:08:30: (configfile.c.907) source: /etc/lighttpd/lighttpd.conf line: 179 pos: 1 parser failed somehow near here: (EOL) failed! Lighttpd restarts fine when I comment out fastcgi config lines.

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• Javascript/jQuery height calculation

  - by danit

  Im looking for a way, in javascript, to calculate the size of the browser (px) then calculate the size of a <div> taking away 50px from that full screen size: E.g. Browser screen size: 800px (Height) Existing <div> that is always 50px (Height) Leaves 750px (Height) for the remaining <div> to fill the page. Then take that 750px and apply it as inline style: <div style="height: 50px"> <img src="banner.png" /> </div> <div style="height: x"> This fills the remainder of the page </div>

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• Printing pdf without opening

  - by Marius

  Hello there, I want to open a PDF-print dialog (not regular browser dialog) without visually opening the document so that I can print a pdf without having the header and footer information from a regular webpage print. I know this is possible, because I have seen it in the past on a postal service website for printing postage labels, but cannot remember where. As far as I know, printing it from an iframe doesnt work, as it only opens regular browser print dialog and gives me ugly page and url information: frames['name'].focus(); frames['name'].print(); Thank you for your time. Kind regards, Marius

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• How would you adblock using Python?

  - by regomodo

  I'm slowly building a web browser in PyQt4 and like the speed i'm getting out of it. However, I want to combine easylist.txt with it. I believe adblock uses this to block http requests by the browser. How would you go about it using python/PyQt4? [edit1] Ok. I think i've setup Privoxy. I haven't setup any additional filters and it seems to work. The PyQt4 i've tried to use looks like this self.proxyIP = "127.0.0.1" self.proxyPORT= 8118 proxy = QNetworkProxy() proxy.setType(QNetworkProxy.HttpProxy) proxy.setHostName(self.proxyIP) proxy.setPort(self.proxyPORT) QNetworkProxy.setApplicationProxy(proxy) However, this does absolutely nothing and I cannot make sense of the docs and can not find any examples. [edit2] I've just noticed that i'f I change self.proxyIP to my actual local IP rather than 127.0.0.1 the page doesn't load. So something is happening.

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• Language in a Sandbox in Rails

  - by Jon Romero

  I've found that there WAS a sandbox gem (created by the guys that made try ruby in your browser but it was compatible only with Ruby 1.8. Another problem is that I cannot find it anymore (it seems they stop serving the gem from the servers...). So, is there any secure way of running ruby in a sandbox (so you can run it from your browser)? Or an easy way to run (for example lua/python) in a sandbox (no filesystem access, no creation of objects etc) and be called from Ruby (Rails 2.2)? I want to make an application like try_ruby even without having a ruby underneath. But it has to be an easy language (I saw there was a prolog in ruby, even a lisp but I don't think they are easy to learn languages...). So, do you have any suggestions or tips? Or should I just start creating my own DSL in Ruby (if there is a solution in creating a somewhat safe system)? Thx

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