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• HTML5 web storage: can different websites overwrite each other’s data on a user’s computer?

  - by Deepak Mahalingam

  I have a few questions regarding the concept of HTML5 storage. I went through the w3c specification, books and tutorials on the same, but still I am a bit unclear about certain concepts: Assume that I access Website A. Some JavaScript runs in my browser that sets a key value pair, say ('username','deepak'). Then I access Website B which also adds a key,value pair in the localstorage as ('username','mahalingam'). How will they both be differentiated? Will Website B override the value set by website A in my localstorage? How can we ensure that a website would not erase all of my localstorage?

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• Unable to load WSDL file error in flex while making a call to a web service.

  - by Angeline Aarthi

  I am trying to call a webservice from my Flex application and this is the code: <mx:WebService id="myWebService" wsdl="http://172.16.111.103:22222/cics/services/PRESENT1?wsdl"> <mx:operation name="PRESENT1Operation" result="resultHandler(event)" fault="faultHandler(event)"> </mx:operation> </mx:WebService> //Function to send customer id to the wsdl request private function searchDetails():void{ myWebService.PRESENT1Operation.send(cusNo.text); cusDetails.visible=true; } The webservice is up and running. I have a separate Java application to test the webservice, And I am able to execute it properly. I am able to request the webservice and get response. But If I try to call the webservice through the Flex application, I get the following error. [RPC Fault faultString="HTTP request error" faultCode="Server.Error.Request" faultDetail="Unable to load WSDL. If currently online, please verify the URI and/or format of the WSDL (http://172.16.111.103:22222/cics/services/PRESENT1?WSDL)"] at mx.rpc.wsdl::WSDLLoader/faultHandler()[C:\autobuild\3.2.0\frameworks\projects\rpc\src\mx\rpc\wsdl\WSDLLoader.as:98] at flash.events::EventDispatcher/dispatchEventFunction() at flash.events::EventDispatcher/dispatchEvent() at mx.rpc::AbstractInvoker/http://www.adobe.com/2006/flex/mx/internal::dispatchRpcEvent()[C:\autobuild\3.2.0\frameworks\projects\rpc\src\mx\rpc\AbstractInvoker.as:170] at mx.rpc::AbstractInvoker/http://www.adobe.com/2006/flex/mx/internal::faultHandler()[C:\autobuild\3.2.0\frameworks\projects\rpc\src\mx\rpc\AbstractInvoker.as:225] at mx.rpc::Responder/fault()[C:\autobuild\3.2.0\frameworks\projects\rpc\src\mx\rpc\Responder.as:53] at mx.rpc::AsyncRequest/fault()[C:\autobuild\3.2.0\frameworks\projects\rpc\src\mx\rpc\AsyncRequest.as:103] at DirectHTTPMessageResponder/errorHandler()[C:\autobuild\3.2.0\frameworks\projects\rpc\src\mx\messaging\channels\DirectHTTPChannel.as:362] at flash.events::EventDispatcher/dispatchEventFunction() at flash.events::EventDispatcher/dispatchEvent() at flash.net::URLLoader/redirectEvent() Please some one help me with this.

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• How to arrange models, views, controllers in a new Kohana 3 project

  - by Pekka

  I'm looking at how to set up a mid-sized web application with Kohana 3. I have implemented MVC patterns in the past but never worked against a "formalized" MVC framework so I'm still getting my head around the terminology - toying around with basic examples, building views and templates, and so on. I'm progressing fairly well but I want to set up a real-world web project (one of my own that I've been planning for quite some time now) as a learning object. Example-based documentation is a bit sparse for Kohana 3 right now - they say so themselves on the site. While I'm not worried about learning the framework soon enough, I'm a bit at a loss on how to arrange a healthy code base from the start - i.e. how to split up controllers, how to name them, and how to separate the functionality into the appropriate models. My application could, in its core, be described as a business directory with a main businesses table. Businesses can be listed by category and by street name. Each business has a detail page. Business owners can log in and edit their business's entry. Businesses can post offers into an offers table. I know this is pretty vague, I'll be more than happy to go into more detail on request. Supposing I have all the basic functionality worked out and in place already - list all businesses, edit business, list businesses by street name, create offer, and so on, and I'm just looking for how to fit the functionality into a Kohana application structure that can be easily extended: Do you know real-life, publicly accessible examples of applications built on Kohana 3 where I could take a peek how they do it? Are there conventions or best practices on how to structure an extendable login area for end users in a Kohana project that is not only able to handle a business directory page, but further products on separate pages as well? Do you know application structuring HOWTOs or best practices for Kohana 3 not mentioned in the user guide and the inofficial Wiki? Have you built something similar and could give me some recommendations?

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• IIS: redirect to a webpage if authentication fails

  - by DrStalker

  We have an IIS site (MOSS 2007) that uses Windows Authentication. When a user that has forgotten their password tries to login the servers keeps sending 401 requests. This means on IE the user gets three prompts before IE displays a blank page, on Firefox the user is prompted over and over until they give up. We would like to change the behavior so if a user fails to login three times in a row we send them a redirect to a different site, instead of another 401 Forms authentication is not an option; the site has to remain on windows authentication to allow for SSO capabilities and certain sharepoint functions. Is there any way to tweak the IIS behavior to do this?

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• Using Enterprise Library DAAB in C# Console Project

  - by Kayes

  How can I prepare the configuration settings (App.config, maybe?) I need to use Enterprise Library Data Access Application Block in a C# console project? Following is what I currently trying with an App.config in the console project. When I call DatabaseFactory.CreateDatabase(), it throws an exception which says: "Configuration system failed to initialize" <configuration> <dataConfiguration> <xmlSerializerSection type="Microsoft.Practices.EnterpriseLibrary.Data. Configuration.DatabaseSettings, Microsoft.Practices.EnterpriseLibrary.Data, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null"> <enterpriseLibrary.databaseSettings xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" defaultInstance="Northwind" xmlns="http://www.microsoft.com/practices/enterpriselibrary/08-31-2004/data"> <databaseTypes> <databaseType name="Sql Server" type="Microsoft.Practices.EnterpriseLibrary.Data.Sql.SqlDatabase, Microsoft.Practices.EnterpriseLibrary.Data, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null" /> </databaseTypes> <instances> <instance name="Northwind" type="Sql Server" connectionString="Northwind" /> </instances> <connectionStrings> <connectionString name="Northwind"> <parameters> <parameter name="Database" value="Northwind" isSensitive="false" /> <parameter name="Integrated Security" value="True" isSensitive="false" /> <parameter name="Server" value="local" isSensitive="false" /> <parameter name="User ID" value="sa" isSensitive="false" /> <parameter name="Password" value="sa1234" isSensitive="true" /> </parameters> </connectionString> </connectionStrings> </enterpriseLibrary.databaseSettings> </xmlSerializerSection> </dataConfiguration> </configuration>

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• Exception on apache cxf when calling JaxWsProxyFactoryBean.create() (in maven project)

  - by tzippy

  I wrote a Client that uses a Webservice. Works well in a seperate project. But when I try to use it in my maven project, it fails. The dependencies are correct: <dependency> <groupId>org.apache.cxf</groupId> <artifactId>cxf-rt-frontend-jaxws</artifactId> <version>2.2.8</version> </dependency> <dependency> <groupId>org.apache.cxf</groupId> <artifactId>cxf-rt-transports-http</artifactId> <version>2.2.8</version> </dependency> <!-- Jetty is needed if you're are not using the CXFServlet --> <dependency> <groupId>org.apache.cxf</groupId> <artifactId>cxf-rt-transports-http-jetty</artifactId> <version>2.2.8</version> </dependency> But the error seems to occur calling this method: JaxWsProxyFactoryBean.create(); This is what I get: 10.06.2010 12:50:59 org.apache.cxf.service.factory.ReflectionServiceFactoryBean buildServiceFromClass INFO: Creating Service {http://tempuri.org/}BMWebServiceSoapService from class net.myClassPath.BMWebServiceSoap 2010-06-10 12:51:00.992::WARN: Nested in org.springframework.web.util.NestedServletException: Handler processing failed; nested exception is java.lang.NoClassDefFoundError: javax/wsdl/extensions/soap12/SOAP12Address: java.lang.NoClassDefFoundError: javax/wsdl/extensions/soap12/SOAP12Address Does anyone have a clue? Thanks!

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• WebBrowser control won't display an https site that IE8 on the same PC will

  - by Velika

  In IE8, I get the follow warning, but if I choose to continue the site displays properly. There is a problem with this website's security certificate. The security certificate presented by this website was issued for a different website's address. Security certificate problems may indicate an attempt to fool you or intercept any data you send to the server. We recommend that you close this webpage and do not continue to this website. Click here to close this webpage. Continue to this website (not recommended). More information In the WebBrowser control, I get this at first: Navigation to the webpage was canceled What you can try: Refresh the page. When I hit the refresh teh page, this time, I get the same wanting as I originally get in IE8, but when I click "Continue to this website (not recommended)", the page refresh again, displaying the same warning. What can I do to get the site to display in the WebBrowser control as it does in IE8. I would've thought that the control would be using the same core logic and therefore expected the same result.

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• _CopyWebApplication with web.config transformations

  - by Jeremy

  I am trying to have my web application automatically Publish when a Release build is performed. I'm doing this using the _CopyWebApplication target. I added the following to my .csproj file: <!-- Automatically Publish in Release build. --> <Import Project="$(MSBuildExtensionsPath)\Microsoft\VisualStudio\v10.0\WebApplications\Microsoft.WebApplication.targets" /> <Target Name="AfterBuild"> <RemoveDir Directories="$(ProjectDir)..\Output\MyWeb" ContinueOnError="true" /> <MSBuild Projects="MyWeb.csproj" Properties="Configuration=Release;WebProjectOutputDir=$(ProjectDir)..\Output\MyWeb;OutDir=$(ProjectDir)bin\" Targets="ResolveReferences;_CopyWebApplication" /> </Target> This works but with one issue. The difference between this output, and the output generated when using the Publish menu item in Visual Studio, is that the Web.Release.config transformation is not applied to the Web.config file when using the MSBuild method. Instead, Web.config, Web.Release.config, and Web.Debug.config are all copied. Any ideas are appreciated.

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• Visual studio 2003 web projects.

  - by swapna

  Hi, I have a requirement to work on a VS2003 web project. I have VS2008,vs2010,vs2003 installed in my system Other System details are Windows Xp professional version 2 service pack 3. IIS 5.1 When i am trying to create a VS 2003 web project giving the localhost as path i am getting the following error. "visual studio noted that specified web server is not running under asp .net 1.1 version.You will be unable to run asp .net web applications or services". I have used aspnet_regiis commands as well as a tool(ASPNETVersionSwitcher.exe ) to swith versions and in iis also default web site asp.net version chosen as asp .net 1.14322. Still i am getting the error. same error i get ,if i point a virtual directory in the existing 1.1 .net web application and trying to open it. Please advise since i have to work on this project as soon as possible. Thanks SNA

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• Visual Studio project using the Quality Center API remains in memory

  - by Traveling Tech Guy

  Hi, Currently developing a connector DLL to HP's Quality Center. I'm using their (insert expelative) COM API to connect to the server. An Interop wrapper gets created automatically by VStudio. My solution has 2 projects: the DLL and a tester application - essentially a form with buttons that call functions in the DLL. Everything works well - I can create defects, update them and delete them. When I close the main form, the application stops nicely. But when I call a function that returns a list of all available projects (to fill a combo box), if I close the main form, VStudio still shows the solution as running and I have to stop it. I've managed to pinpoint a single function in my code that when I call, the solution remains "hung" and if I don't, it closes well. It's a call to a property in the TDC object get_VisibleProjects that returns a List (not the .Net one, but a type in the COM library) - I just iterate over it and return a proper list (that I later use to fill the combo box): public List<string> GetAvailableProjects() { List<string> projects = new List<string>(); foreach (string project in this.tdc.get_VisibleProjects(qcDomain)) { projects.Add(project); } return projects; } My assumption is that something gets retained in memory. If I run the EXE outside of VStudio it closes - but who knows what gets left behind in memory? My question is - how do I get rid of whatever calling this property returns? Shouldn't the GC handle this? Do I need to delve into pointers? Things I've tried: getting the list into a variable and setting it to null at the end of the function Adding a destructor to the class and nulling the tdc object Stepping through the tester function application all the way out, whne the form closes and the Main function ends - it closes, but VStudio still shows I'm running. Thanks for your assistance!

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• How to create a web framework in C# without ASPX?

  - by Mark

  I've managed to get a C# asp page running under ubuntu/apache/mono, but I don't want to write my framework in these ASP pages, I want to use straight C# and then I'll use a templating language for my views. But I don't know where to begin? C# is a compiled language, so... how would I do this? Would I compile everything and then have apache hook into the (single) executable and pass in the the request URL? Could I request specific .cs pages and then have apache tell it to compile and then "display" it only if it's been updated? Can the "view" files be compiled individually to avoid having to recompile everything every time there's a change? Is there some "base" I can work from, or am I going to have to reinvent accessing GET and POST variables (by reading header info) and all sorts of other stuff we take for granted in languages like PHP?

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• Django-modpython project in a directory

  - by Ankit Jaiswal

  Hi All, I am deploying a Django project on apache server with mod_python in linux. I have created a directory structure like: /var/www/html/django/demoInstall where demoInstall is my project. In the httpd.conf I have put the following code. <Location "/django/demoInstall"> SetHandler python-program PythonHandler django.core.handlers.modpython SetEnv DJANGO_SETTINGS_MODULE demoInstall.settings PythonOption django.root django/demoInstall PythonDebug On PythonPath "['/var/www/html/django'] + sys.path" </Location> It is getting me the django environment but the issue is that the urls mentioned in urls.py are not working correctly. In my url file I have mentioned the url like: (r'^$', views.index), Now, in the browser I am putting the url like : http://domainname/django/demoInstall/ and I am expecting the views.index to be invoked. But I guess it is expecting the url to be only: http://domainname/ . When I change the url mapping to: (r'^django/demoInstall$', views.index), it works fine. Please suggest as I do not want to change all the mappings in url config file. Thanks in advance.

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• Eclipse - How can I change a 'Project Facet' from Tomcat 6 to Tomcat 5.5?

  - by pcimring

  (Eclipse 3.4, Ganymede) I have an existing Dynamic Web Application project in Eclipse. When I created the project, I specified 'Default configuration for Apache Tomcat v6' under the 'Configuration' drop down. It's a month or 2 down the line, and I would now like to change the configuration to Tomcat 'v5.5'. (This will be the version of Tomcat on the production server.) I have tried the following steps (without success): I selected Targeted Runtimes under the Project Properties The Tomcat v5.5 option was disabled and The UI displayed this message: If the runtime you want to select is not displayed or is disabled you may need to uninstall one or more of the currently installed project facets. I then clicked on the Uninstall Facets... link. Under the Runtimes tab, only Tomcat 6 displayed. For Dynamic Web Module, I selected version 2.4 in place of 2.5. Under the Runtimes tab, Tomcat 5.5 now displayed. However, the UI now displayed this message: Cannot change version of project facet Dynamic Web Module to 2.4. The Finish button was disabled - so I reached a dead-end. I CAN successfully create a NEW Project with a Tomcat v5.5 configuration. For some reason, though, it will not let me downgrade' an existing Project. As a work-around, I created a new Project and copied the source files from the old Project. Nonetheless, the work-around was fairly painful and somewhat clumsy. Can anyone explain how I can 'downgrade' the Project configuration from 'Tomcat 6' to 'Tomcat 5'? Or perhaps shed some light on why this happened? Thanks Pete

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• How to permanently remove xcuserdata under the project.xcworkspace and resolve uncommitted changes

  - by JeffB6688

  I am struggling with a problem with a merge conflict (see Cannot Merge due to conflict with UserInterfaceState.xcuserstate). Based on feedback, I needed to remove the UserInterfaceState.xcuserstate using git rm. After considerable experimentation, I was able to remove the file with "git rm -rf project.xcworkspace/xcuserdata". So while I was on the branch I was working on, it almost immediately came back as a file that needed to be committed. So I did the git rm on the file again and just switched back to the master. Then I performed a git rm on the file again. The operation again removed the file. But I am still stuck. If I try to merge the branch into the master branch, it again says that I have uncommitted changes. So I go to commit the change. But this time, it shows UserInterfaceState.xcuserstate as the file to commit, but the box is unchecked and it can't be checked. So I can't move forward. Is there a way to use 'git rm' to permanently remove xcuserdata under the project.xcworkspace? Help!! Any ideas?

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• TypeError: coercing to Unicode: need string or buffer, User found

  - by Clemens

  hi, i have to crawl last.fm for users (university exercise). I'm new to python and get following error: Traceback (most recent call last): File "crawler.py", line 23, in <module> for f in user_.get_friends(limit='200'): File "/opt/local/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/pylast.py", line 2717, in get_friends for node in _collect_nodes(limit, self, "user.getFriends", False): File "/opt/local/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/pylast.py", line 3409, in _collect_nodes doc = sender._request(method_name, cacheable, params) File "/opt/local/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/pylast.py", line 969, in _request return _Request(self.network, method_name, params).execute(cacheable) File "/opt/local/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/pylast.py", line 721, in __init__ self.sign_it() File "/opt/local/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/pylast.py", line 727, in sign_it self.params['api_sig'] = self._get_signature() File "/opt/local/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/pylast.py", line 740, in _get_signature string += self.params[name] TypeError: coercing to Unicode: need string or buffer, User found i use the pylast lib for crawling. what i want to do: i want to get a users friends and the friends of the users friends. the error occurs, when i have a for loop in another for loop. here's the code: network = pylast.get_lastfm_network(api_key = API_KEY, api_secret = API_SECRET, username = username, password_hash = password_hash) user = network.get_user("vidarnelson") friends = user.get_friends(limit='200') i = 1 for friend in friends: user_ = network.get_user(friend) print '#%d %s' % (i, friend) i = i + 1 for f in user_.get_friends(limit='200'): print f any advice? thanks in advance. regards!

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• Question about registering COM server and Add Reference to it in a C# project

  - by smwikipedia

  I build a COM server in raw C++, here is the procedure: (1) write an IDL file to define the interface and library. (2) use msidl.exe to compile the IDL file to necessary .h, .c, .tlb files. (3) implement the COM server in C++ and build a .dll file. (4) add the following registry entris: [HKEY_CLASSES_ROOT\RawComCarLib.ComCar.1\CurVer] @="RawComCarLib.ComCar.1" ;CLSID [HKEY_CLASSES_ROOT\CLSID{6CC26343-167B-4CF2-9EDF-99368A62E91C}] @="RawComCarLib.ComCar.1" [HKEY_CLASSES_ROOT\CLSID{6CC26343-167B-4CF2-9EDF-99368A62E91C}\InprocServer32] @="D:\com\Project01.dll" [HKEY_CLASSES_ROOT\CLSID{6CC26343-167B-4CF2-9EDF-99368A62E91C}\ProgID] @="RawComCarLib.ComCar.1" [HKEY_CLASSES_ROOT\CLSID{6CC26343-167B-4CF2-9EDF-99368A62E91C}\TypeLib] @="{E5C0EE8F-8806-4FE3-BC0E-3A56CFB38BEE}" ;TypeLib [HKEY_CLASSES_ROOT\TypeLib{E5C0EE8F-8806-4FE3-BC0E-3A56CFB38BEE}] [HKEY_CLASSES_ROOT\TypeLib{E5C0EE8F-8806-4FE3-BC0E-3A56CFB38BEE}\1.0] @="Car Server Type Lib" [HKEY_CLASSES_ROOT\TypeLib{E5C0EE8F-8806-4FE3-BC0E-3A56CFB38BEE}\1.0\0] [HKEY_CLASSES_ROOT\TypeLib{E5C0EE8F-8806-4FE3-BC0E-3A56CFB38BEE}\1.0\0\win32] @="D:\com\Project01.tlb" [HKEY_CLASSES_ROOT\TypeLib{E5C0EE8F-8806-4FE3-BC0E-3A56CFB38BEE}\1.0\FLAGS] @="0" [HKEY_LOCAL_MACHINE\SOFTWARE\Classes\TypeLib{E5C0EE8F-8806-4FE3-BC0E-3A56CFB38BEE}\1.0\0\win32] @="C:\Windows\System32\msdatsrc.tlb" (5) I try to add reference to the COM by click the Add Reference in the C# project. (6) In the COM tab, I saw my "Car Server Type Lib", it's ok until now. I try to use the Object Browser to browse my COM lib, but the Visual Studio said "the following components could not be browsed", and I noticed that there's no new reference added to the list in the C# project Reference. I can use the tlbimp.exe to generate a interop.CarCom.dll, and then use the COM through this interop dll, but I want this interop assembly to be generated automatically when I just add reference to the COM. Could someone tell me what's wrong? Many thanks.

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• Converting From Castle Windsor To StructureMap In An MVC2 Project

  - by alphadogg

  I am learning about best practices in MVC2 and I am knocking off a copy of the "Who Can Help Me" project (http://whocanhelpme.codeplex.com/) off Codeplex. In it, they use Castle Windsor for their DI container. One "learning" task I am trying to do is convert this subsystem in this project to use StructureMap. Basically, at Application_Start(), the code news up a Windsor container. Then, it goes through multiple assemblies, using MEF: public static void Register(IContainer container) { var catalog = new CatalogBuilder() .ForAssembly(typeof(IComponentRegistrarMarker).Assembly) .ForMvcAssembly(Assembly.GetExecutingAssembly()) .ForMvcAssembliesInDirectory(HttpRuntime.BinDirectory, "CPOP*.dll") // Won't work in Partial trust .Build(); var compositionContainer = new CompositionContainer(catalog); compositionContainer .GetExports<IComponentRegistrar>() .Each(e => e.Value.Register(container)); } and any class in any assembly that has an IComponentRegistrar interface will get its Register() method run. For example, the controller registrar's Register() method implementation basically is: public void Register(IContainer container) { Assembly.GetAssembly(typeof(ControllersRegistrarMarker)).GetExportedTypes() .Where(IsController) .Each(type => container.AddComponentLifeStyle( type.Name.ToLower(), type, LifestyleType.Transient )); } private static bool IsController(Type type) { return typeof(IController).IsAssignableFrom(type); } Hopefully, I am not butchering WCHM too much. I am wondering how does one do this with StructureMap?

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• ASP.NET 3.5 Web Site stopped importing System namespace by default

  - by Alexis

  I have a VB Web Site project that has recently (and mysteriously) stopped importing the "System" namespace by default. I'm having to either place a "Imports System" line at the top of each code behind, or preface everything with "System", which is fairly annoying, not to mention redundant. I can't for the life of me figure out how to get the System namespace back to being imported by default. I've already checked to see that WINDOWS\Microsoft.NET\Framework\v2.0.50727\CONFIG\web.config contains the <add namespace="System"/> line--it does. That was my best lead. I'm tearing my hair out. Does anyone have any suggestions?

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• Has anyone integrated Fedex web services into their website?

  - by Fedor

  I have to set this up so that users can make labels, and track shipments, can someone outline the steps of how this works, including any interaction I need to do in regards to testing and contacting Fedex support, any special keys, gotchas?

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• Prevent bot from crawling certain areas of site.

  - by Skoder

  Hey, I don't know much about SEO and how web spiders work, so forgive my ignorance here. I'm creating a site (using ASP.NET-MVC) which has areas that displays information retrieved from the database. The data is unique to the user, so there's no real server-side output caching going on. However, since the data can contain things the user may not wish to have displayed from search engine results, I'd like to prevent any spiders from accessing the search results page. Are there any special actions I should take to ensure that the search result directory isn't crawled? Also, would a spider even crawl a page that's dynamically generated and would any actions preventing certain directories being search mess up my search engine rankings? edit: I should add, I'm reading up on robots.txt protocol, but it relies on co-operation from the web crawler. However, I'd also like to prevent any data-mining users who will ignore the robots.txt file. I appreciate any help!

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• How to protect/monitor your site from crawling by malicious user

  - by deathy

  Situation: Site with content protected by username/password (not all controlled since they can be trial/test users) a normal search engine can't get at it because of username/password restrictions a malicious user can still login and pass the session cookie to a "wget -r" or something else. The question would be what is the best solution to monitor such activity and respond to it (considering the site policy is no-crawling/scraping allowed) I can think of some options: Set up some traffic monitoring solution to limit the number of requests for a given user/IP. Related to the first point: Automatically block some user-agents (Evil :)) Set up a hidden link that when accessed logs out the user and disables his account. (Presumably this would not be accessed by a normal user since he wouldn't see it to click it, but a bot will crawl all links.) For point 1. do you know of a good already-implemented solution? Any experiences with it? One problem would be that some false positives might show up for very active but human users. For point 3: do you think this is really evil? Or do you see any possible problems with it? Also accepting other suggestions.

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• Which metadata I should save when downloading web-pages?

  - by Vojtech R.

  Hi, I'm going to download (for future purposes of language processing) some thousands webpages. Now I'm thinking, which metadata I should save. I explore this, but I do not wont to neglect something important. <title> <link> <publish_date> <date_downloaded> <source> // to this page <keyword> // for Solr indexing <text> // cleaned body of page Is there something important what I could miss in future?

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• Reverse Proxy Methods for Hosting a Low-Bandwidth Dynamic Website

  - by Casey

  I am building a webcam w/ HTTP server that will be running from a low-bandwith connection. The content on the site will be changing every 5 to 10 minutes. Instead of serving files directly from this connection, are there hosting companies that can act as a reverse proxy for my site? Therefore, if nobody is using the site, the local internet connection remains idle. And if I receive 1000 hits all at the same time, only one HTTP GET is required, and the hosting company (on a fat pipe) continues serving the other 999 requests? This doesn't sound like a very common usage model, but I feel like this would be the optimal solution to my situation.

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• What call from the Android Development Tools API should I use to poll project target loading?

  - by Ricardo Gladwell

  I'm writing my own eclipse plug-in that integrates with the Eclipse Android Development Tools (ADT). However, I'm getting a CoreException ("Project target not loaded yet.") thrown when I attempt to call IProject.build on an Android project as part of a unit test: IProject project = importProject(...); project.build(IncrementalProjectBuilder.FULL_BUILD, monitor); Should I be waiting for the project target to load before calling the above? If so, what call should I use to poll the project target loading status?

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• How do I host multiple SSL websites on a single EC2 instance using Amazon Elastic Load Balancers?

  - by Developr

  If I have 3 separate websites which all require SSL (separate certificates) that I want to host on the same EC2 instance(s) across multiple availability zones so that we have the ability to scale and be highly available, how do I achieve this using ELBs in my Amazon VPC? Each site requires a separate IP address, so I have added multiple private IPs to the EC2 instance, but I am unsure how to bind the ELB to a certain IP on the instance. I was also able to setup multiple ELB pointing to the same instance, but again, I am not seeing any way to bind each ELB to a separate IP on the instance. If this is not possible, what is the best option? Run each site on a separate EC2 instance / ELB combo (expensive and harder to maintain) Give each site a separate public IP and use Route 53 to do the load balancing (seems like a hack) Use a different load balancer option such as HAProxy that should be able to work like a normal load balancer appliance. Please help!

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