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  • Can't connect to local IP address on OSX

    - by Alex Worden
    I'm trying to connect to a webserver that's running on my mac OSX 1.6. I'm able to connect to it locally using http://127.0.0.1:8888/myapp but when I attempt to connect to it using my machine's local IP address (http://192.168.1.15:8888/myapp IP shown below) from the same machine (or another on the network) I cannot connect. I can ping the LAN IP address. I've tried adding IP forwarding to my router for port 8888 but it didn't help. I've checked and the OSX firewall is disabled Can anyone suggest what else is blocking the connection? Here's what I get when I run ifconfig: ~ :ifconfig lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> mtu 16384 inet6 ::1 prefixlen 128 inet6 fe80::1%lo0 prefixlen 64 scopeid 0x1 inet 127.0.0.1 netmask 0xff000000 gif0: flags=8010<POINTOPOINT,MULTICAST> mtu 1280 stf0: flags=0<> mtu 1280 en0: flags=8863<UP,BROADCAST,SMART,RUNNING,SIMPLEX,MULTICAST> mtu 1500 ether 00:1f:5b:e8:16:4d media: autoselect status: inactive supported media: autoselect 10baseT/UTP <half-duplex> 10baseT/UTP <full-duplex> 10baseT/UTP <full-duplex,hw-loopback> 10baseT/UTP <full-duplex,flow-control> 100baseTX <half-duplex> 100baseTX <full-duplex> 100baseTX <full-duplex,hw-loopback> 100baseTX <full-duplex,flow-control> 1000baseT <full-duplex> 1000baseT <full-duplex,hw-loopback> 1000baseT <full-duplex,flow-control> none en1: flags=8863<UP,BROADCAST,SMART,RUNNING,SIMPLEX,MULTICAST> mtu 1500 inet6 fe80::21e:c2ff:febf:4809%en1 prefixlen 64 scopeid 0x5 inet 192.168.1.15 netmask 0xffffff00 broadcast 192.168.1.255 ether 00:1e:c2:bf:48:09 media: autoselect status: active supported media: autoselect fw0: flags=8802<BROADCAST,SIMPLEX,MULTICAST> mtu 4078 lladdr 00:1f:5b:ff:fe:2b:b3:3c media: autoselect <full-duplex> status: inactive supported media: autoselect <full-duplex> en5: flags=8822<BROADCAST,SMART,SIMPLEX,MULTICAST> mtu 1500 ether 00:1e:c2:8e:0f:45 media: autoselect status: inactive supported media: none autoselect 10baseT/UTP <half-duplex> en2: flags=8922<BROADCAST,SMART,PROMISC,SIMPLEX,MULTICAST> mtu 1500 ether 00:1c:42:00:00:00 media: autoselect status: inactive supported media: autoselect en3: flags=8922<BROADCAST,SMART,PROMISC,SIMPLEX,MULTICAST> mtu 1500 ether 00:1c:42:00:00:01 media: autoselect status: inactive supported media: autoselect

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  • What causes this org.hibernate.MappingException?

    - by stacker
    I'm trying to configure an ejb3 sample application, it's entities where mapped to postgres now I want the app run on Jboss4.3 and Informix using JPA. If the DDL creation <property name="hibernate.hbm2ddl.auto" value="create"/> is active this error appears > WARN [ServiceController] Problem > starting service > persistence.units:ear=weblog.ear,jar=weblog.jar,unitName=weblog > javax.persistence.PersistenceException: > [PersistenceUnit: weblog] Unable to > build EntityManagerFactory > at org.hibernate.ejb.Ejb3Configuration.buildEntityManagerFactory(Ejb3Configuration.java:677) > at org.hibernate.ejb.HibernatePersistence.createContainerEntityManagerFactory(HibernatePersistence.java:132) > at org.jboss.ejb3.entity.PersistenceUnitDeployment.start(PersistenceUnitDeployment.java:246) followed by Caused by: org.hibernate.MappingException: No Dialect mapping for JDBC type: 2005 at org.hibernate.dialect.TypeNames.get(TypeNames.java:56) at org.hibernate.dialect.TypeNames.get(TypeNames.java:81) at org.hibernate.dialect.Dialect.getTypeName(Dialect.java:291) at org.hibernate.mapping.Column.getSqlType(Column.java:182) at org.hibernate.mapping.Table.sqlCreateString(Table.java:394) at org.hibernate.cfg.Configuration.generateSchemaCreationScript(Configuration.java:854) at org.hibernate.tool.hbm2ddl.SchemaExport.<init>(SchemaExport.java:74) at org.hibernate.impl.SessionFactoryImpl.<init>(SessionFactoryImpl.java:311) at org.hibernate.cfg.Configuration.buildSessionFactory(Configuration.java:1300) at org.hibernate.cfg.AnnotationConfiguration.buildSessionFactory(AnnotationConfiguration.java:874) at org.hibernate.ejb.Ejb3Configuration.buildEntityManagerFactory(Ejb3Configuration.java:669) What does JDBC type: 2005 mean? Any idea how I can track down the entity/column causes the problem? Thanks

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  • Plugin execution not covered by lifecycle configuration: org.codehaus.mojo:aspectj-maven-plugin:1.0

    - by alexm
    I switched from q4e Helios to Indigo m2e plugin and my Maven 2 project no longer works. I had a ROO-generated Spring MVC project. This is what I get: Plugin execution not covered by lifecycle configuration: org.codehaus.mojo:aspectj-maven-plugin:1.0:test-compile (execution: default, phase: process-test-sources) Plugin execution not covered by lifecycle configuration: org.codehaus.mojo:aspectj-maven-plugin:1.0:compile (execution: default, phase: process-sources) Any insight is greatly appreciated. Thank you.

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  • Exception on SslStream.AuthenticateAsClient (The message was badly formatted)

    - by Noms
    I have got wierd problem going on. I am trying to connect to Apple server via TCP/SSL. I am using a Client certificate provided by Apple for push notifications. I installed the certificate on my server (Win2k3) in both Local Trusted Root certificates and Local Personal Certificates folder. Now I have a class library that deals with that connection, when i call this class library from a console application running from the server it works absolutely fine, but when i call that class library from an asp.net page or asmx web service I get the following exception. A call to SSPI failed, see inner exception. The message received was unexpected or badly formatted. This is my code: X509Certificate cert = new X509Certificate(certificateLocation, certificatePassword); X509CertificateCollection certCollection = new X509CertificateCollection(new X509Certificate[1] { cert }); // OPEN the new SSL Stream SslStream ssl = new SslStream(client.GetStream(), false, new RemoteCertificateValidationCallback(ValidateServerCertificate), null); ssl.AuthenticateAsClient(ipAddress, certCollection, SslProtocols.Default, false); ssl.AuthenticateAsClient is where the error gets thrown. This is driving me nuts. If the console application can connect fine, there must be some problem with asp.net network layer security that is failing the authentication... not sure, perhaps need to add something or some sort of security policy in the web.config. Also just to point out that i can connect fine on my local development machine both with console and website. Anyone has got any ideas?

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  • 64-bit Windows CE 5.0 Emulator

    - by FreshCode
    When attempting to run the Windows CE 5.0 emulator on my 64-bit system, I get the following error: "Emulator for Windows CE is incompatible with the host operating system. Emulator for CE will not run on 64-bit host operating systems.64-bit host operating systems." How can I run the Windows CE 5.0 Emulator under 64-bit Windows 7 without resorting to a VM?

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  • Silverlight data binding to parent user control's properties with using MVVM in both controls

    - by MagicMax
    Hello! I have two UserControls ("UserControlParentView" and "UserControlChildView") with MVVM pattern implemented in both controls. Parent control is a container for Child control and child control's property should be updated by data binding from Parent control in order to show/hide some check box inside Child control. Parent Control Description UserControlParentViewModel has property: private bool isShowCheckbox = false; public bool IsShowCheckbox { get { return isShowCheckbox; } set { isShowCheckbox = value; NotifyPropertyChanged("IsShowCheckbox"); } } UserControlParentViewModel - how I set DataContext of Parent control: public UserControlParentView() { InitializeComponent(); this.DataContext = new UserControlParentViewModel(); } UserControlParentView contains toggle button (in XAML), bound to UserControlParentViewModel's property IsShowCheckbox <ToggleButton Grid.Column="1" IsChecked="{Binding IsShowCheckbox, Mode=TwoWay}"></ToggleButton> Also Parent control contains instance of child element (somewhere in XAML) <local:UserControlChildView IsCheckBoxVisible="{Binding IsShowCheckbox}" ></local:UserControlChildView> so property in child control should be updated when user togggle/untoggle button. Child control contains Boolean property to be updated from parent control, but nothing happened! Breakpoint never fired! Property in UserControlChildView that should be updated from Parent control (here I plan to make chechBox visible/hidden in code behind): public bool IsCheckBoxVisible { get { return (bool)GetValue(IsCheckBoxVisibleProperty); } set { SetValue(IsCheckBoxVisibleProperty, value); } } // Using a DependencyProperty as the backing store for IsCheckBoxVisible. This enables animation, styling, binding, etc... public static readonly DependencyProperty IsCheckBoxVisibleProperty = DependencyProperty.Register("IsCheckBoxVisible", typeof(bool), typeof(TopMenuButton), new PropertyMetadata(false)); So the question is - what I'm doing wrong? Why child's property is never updated? BTW - there is no any binding error warnings in Output window...

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  • How to troubleshoot errors with TeamCity

    - by Tomas Lycken
    I'm following this guide to set up a small environment for source control and automated builds - mostly for learning what it is and how it works, but also for using in those of my hobby projects that I believe will actually be useful some day. However, at the step where he commits and builds, I fail to get a success status in the TeamCity history log. I keep getting the error described in the stack trace below. I have verified with Windows Explorer that the solution file it can't find is actually there, so I really don't know what to do. How do I fix/troubleshoot this? [15:16:06]: Checking for changes [15:16:08]: Clearing temporary directory: C:\Program Files\JetBrains\BuildAgent\temp\buildTmp [15:16:08]: Checkout directory: C:\Program Files\JetBrains\BuildAgent\work\72d50012f70c4588 [15:16:08]: Updating sources: server side checkout... [15:16:08]: [Updating sources: server side checkout...] Building incremental patch for VCS root: DemoProjects [15:16:09]: [Updating sources: server side checkout...] Repository sources transferred [15:16:09]: [Updating sources: server side checkout...] Updating C:\Program Files\JetBrains\BuildAgent\work\72d50012f70c4588 [15:16:10]: Start process: "c:\Program Files\JetBrains\BuildAgent\bin\..\plugins\dotnetPlugin\bin\JetBrains.BuildServer.MsBuildBootstrap.exe" "/workdir:C:\Program Files\JetBrains\BuildAgent\work\72d50012f70c4588" /msbuildPath:C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe [15:16:10]: in: C:\Program Files\JetBrains\BuildAgent\work\72d50012f70c4588 [15:16:11]: TeamCity MSBuild bootstrap v5.1 Copyright (C) JetBrains s.r.o. [15:16:11]: Application failed with internal error: [15:16:11]: Failed to find project file at path: C:\Program Files\JetBrains\BuildAgent\work\72d50012f70c4588\Nehemia\trunk\Nehemiah.sln [15:16:11]: System.Exception: Failed to find project file at path: C:\Program Files\JetBrains\BuildAgent\work\72d50012f70c4588\Nehemia\trunk\Nehemiah.sln [15:16:11]: at JetBrains.BuildServer.MSBuildBootstrap.Impl.MSBuildBootstrapFactory.Create(IClientRunArgs args) in c:\Agent\work\6223f0c8b1d45aaa\src\MSBuildBootstrap.Core\src\Impl\MSBuildBootstrapFactory.cs:line 25 [15:16:11]: at JetBrains.BuildServer.MSBuildBootstrap.Program.Run(String[] _args) in c:\Agent\work\6223f0c8b1d45aaa\src\MSBuildBootstrap\src\Program.cs:line 66 [15:16:11]: Process exited with code -11 [15:16:11]: Build finished

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  • GWT - occasional com.google.gwt.user.client.rpc.SerializationException

    - by user214984
    Hello we are haunted by occasional occurences of exceptions such as: com.google.gwt.user.client.rpc.SerializationException: Type 'xxx' was not assignable to 'com.google.gwt.user.client.rpc.IsSerializable' and did not have a custom field serializer.For security purposes, this type will not be serialized.: instance = xxx at com.google.gwt.user.server.rpc.impl.ServerSerializationStreamWriter.serialize(ServerSerializationStreamWriter.java:610) at com.google.gwt.user.client.rpc.impl.AbstractSerializationStreamWriter.writeObject(AbstractSerializationStreamWriter.java:129) at com.google.gwt.user.server.rpc.impl.ServerSerializationStreamWriter$ValueWriter$8.write(ServerSerializationStreamWriter.java:152) at com.google.gwt.user.server.rpc.impl.ServerSerializationStreamWriter.serializeValue(ServerSerializationStreamWriter.java:534) at com.google.gwt.user.server.rpc.RPC.encodeResponse(RPC.java:609) at com.google.gwt.user.server.rpc.RPC.encodeResponseForSuccess(RPC.java:467) at com.google.gwt.user.server.rpc.RPC.invokeAndEncodeResponse(RPC.java:564) at com.google.gwt.user.server.rpc.RemoteServiceServlet.processCall(RemoteServiceServlet.java:188) at de.softconex.travicemanager.server.TraviceManagerServiceImpl.processCall(TraviceManagerServiceImpl.java:615) at com.google.gwt.user.server.rpc.RemoteServiceServlet.processPost(RemoteServiceServlet.java:224) at com.google.gwt.user.server.rpc.AbstractRemoteServiceServlet.doPost(AbstractRemoteServiceServlet.java:62) at javax.servlet.http.HttpServlet.service(HttpServlet.java:710) at javax.servlet.http.HttpServlet.service(HttpServlet.java:803) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:230) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175) at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:179) at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:84) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:157) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:262) at org.apache.coyote.ajp.AjpAprProcessor.process(AjpAprProcessor.java:419) at org.apache.coyote.ajp.AjpAprProtocol$AjpConnectionHandler.process(AjpAprProtocol.java:378) at org.apache.tomcat.util.net.AprEndpoint$Worker.run(AprEndpoint.java:1508) at java.lang.Thread.run(Thread.java:619) The application is normally running fine. The indicated class implements Serializable (the whole object graph). So far the only patterns / observations are: we seem to have the issue only when the application is used inside an iframe the problem seems to happen when a new version of the application has been deployed running firefox in privacy mode (disabling all caches etc.) doesn't fix the problem Any ideas? Holger

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  • Setting a WPF ContextMenu's PlacementTarget property in XAML?

    - by qntmfred
    <Button Name="btnFoo" Content="Foo" > <Button.ContextMenu Placement="Bottom" PlacementTarget="btnFoo"> <MenuItem Header="Bar" /> </Button.ContextMenu> </Button> gives me a runtime error 'UIElement' type does not have a public TypeConverter class I also tried <Button Name="btnFoo" Content="Foo" > <Button.ContextMenu Placement="Bottom" PlacementTarget="{Binding ElementName=btnFoo}"> <MenuItem Header="Bar" /> </Button.ContextMenu> </Button> and that put the ContextMenu in the top left corner of my screen, rather than at the Button

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  • How to set foreground Window from Powershell event subscriber action

    - by guillermooo
    I have a FileSystemWatcher instance running in the background of my PoSh session watching for changes to text files. A PoSh event subscriber is attached to this event and, when fired, it launches a console program by calling Start-Process. This program steals de focus from the current foreground window (my PoSh console). Calling SetForegroundWindow from the PoSh event subscriber to return the focus to my PoSh console doesn't work. SwitchToThisWindow does work most of the time, but according to the MSDN docs, it shoulnd't be used. Can I prevent Start-Process from stealing the focus in this situation or set it back from the event subscriber to the window that had it before this event is fired?

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  • Installing PIL (Python Imaging Library) in Win7 64 bits, Python 2.6.4

    - by Rafael Almeida
    I'm trying to install said library for use with Python. I tried downloading the executable installer for Windows, which runs, but says it doesn't find a Python installation. Then tried registering (http://effbot.org/zone/python-register.htm) Python, but the script says it can't register (although the keys appear in my register). Then I tried downloading the source package: I run the setup.py build and it works, but when I run setup.py install it says the following: running install running build running build_py running build_ext building '_imaging' extension error: Unable to find vcvarsall.bat What can I do?

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  • xterm python subprocess

    - by Quacked Python
    If using subprocess to execute an xterm on linux, which in turn executes some other process, it seems that Python (2.6.5) will never recognize that the process (xterm) has completed execution. Consider the following code: import subprocess import shlex import time proc = subprocess.Popen(shlex.split('xterm -iconic -title "FOO_BAR" -e sleep 5')) while True: if proc.poll(): print 'Process completed' time.sleep(0.1) This will loop infinitely until you terminate the Python interpreter. I'm guessing that this is probably caused by some oddity with xterm, and not a direct cause of the Python subprocess module, but maybe there are some other smart people out there that could shed some light on the situation. Note: Calling proc.communicate() will in fact return when the xterm completes, but for some reason the poll method will not work.

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  • Dependency Walker reports IESHIMS.DLL and WER.DLL missing?

    - by User
    On a Windows XP Professional SP3 with Internet Explorer 8 box, when I run Dependency Walker on an executable of mine it reports that: IESHIMS.DLL and WER.DLL can't be found. Do I need these DLL's? Where can I get them? I believe they are supposed to located in C:\Windows\System32\Wer.dll and C:\Program Files\Internet Explorer\Ieshims.dll

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  • Simple OCR programming tutorials/articles

    - by daddz
    I'm interested in simple OCR methods and algorithms. And with simple I mean simple! Best would be a tutorial/article/documentation without dependencies on 3rd party librarys if that's even possible. I would really like to build up my knowledge from the ground up. The programming language doesn't matter. Thanks in advance! Edit: An interesting link I found in another question: OCR and Neural Nets in JavaScript I especially like the python implemenation.

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  • ASP.Net Authentication with MVC2--how to integrate with DB?

    - by alchemical
    I'm trying to understand the authentication section sample project that opens in a new MVC2 project in VS2010. It essentially lets you register, login, etc. I looked through the code that implements this briefly, it looked fairly complicated. (10 tables, 40 sprocs, 10 views, 4 models, 1 model, 1 controller, etc.) Is it best to utilize this provided framework for authentication? If so, how would I integrate this with my own database models (which has user and role tables, etc.). Also, if I use their framework, are there any performance issues at higher traffic volumes (like SO for example), do I need to become responsible for maintaining the authentication DB as well in this case?

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  • Turn off transparency to perform CAS Asserts

    - by MainMa
    Hi, I apologize if my question is too stupid. I want to run from a sandboxed application a method from a full trusted assembly. But when trying to do so, as described in C# 4.0 in a Nutshell: The Definitive Reference, Fourth Edition, Chapter 20, each time I call Permission.Assert, an InvalidOperationException "Cannot perform CAS Asserts in Security Transparent methods" is thrown. So how is it possible to turn off transparency to be able to use CAS Asserts?

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  • MSBuild target _CopyWebApplication does not copy all necessary files to the bin folder

    - by apollodude217
    Elsewhere on the Web, you can find recommendations on using something like this to simulate the Publish feature in the VS 2005-2008 IDE from a command-line (I hope I did not goof up the syntax!): msbuild /t:ResolveReferences;_CopyWebApplication /p:BuildingProject=true;OutDir=C:\inetpub\wwwroot\ blah.csproj Now, it looks like the .dll's copy fine. However, there are certain configuration files and template files that are copied to the bin folder which are needed for the app to work. For example, an NHibernate configuration file shows up in blah.csproj as: <None Include="blah.cfg.xml"> <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory> </None> While using Publish from within the IDE copies this file as it should, the aforementioned _CopyWebApplication target does not. I need this file to be copied in the build script. Is this desired behavior for _CopyWebApplication? Any recommendations on how to fix this?

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  • Overlay WPF controls

    - by sandy
    Hello I've written an 'auto-suggest' textbox user control in WPF. It behaves a little bit like the 'To' list in Hotmail, allowing the user to enter a list of items, offering suggestions when it is able. The main controls are a a text box, a wrap panel and a list box. The text box captures user input. The wrap panel contains the text box and shows previous entries. The list box is used to show suggestions. Most of the time, the list box is hidden. I'm using multiple instances of my control in a stack panel. My problem is that when the list box is shown, it is included in the measurement of the height of the control. This forces the following controls in the stack panel to be shifted down, as these pictures demonstrate: I've tried overriding the measurement of my control so not to include the list box, but this just results in the list box not being visible. What I want to do is make the list box overlay any subsequent controls in the stack panel, like a combo box's drop down would do. However, I really don't know how to do this. Any ideas? Thanks Sandy

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  • Could not determine metatable error binding list to asp.net datagridview

    - by Scott Vercuski
    I am working with the following block of code ... List<ThemeObject> themeList = (from theme in database.Themes join image in database.DBImages on theme.imageID equals image.imageID into resultSet from item in resultSet select new ThemeObject { Name = theme.Name, ImageID = item.imageID}).ToList(); dgvGridView.DataSource = themeList; dgvGridView.DataBind(); The list object populates fine. The datagrid is setup with 2 columns. A textbox column for the "Name" which is bound to "Name" An image column which is bound to the "ImageID" field When I execute the code I receive the following error on the DataBind() Could not determine a MetaTable. A MetaTable could not be determined for the data source '' and one could not be inferred from the request URL. Make sure that the table is mapped to the dats source, or that the data source is configured with a valid context type and table name, or that the request is part of a registered DynamicDataRoute. I'm not using any dynamicdataroutes as far as I can tell. Has anyone experienced this error before?

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  • InternalsVisibleTo attribute and security vulnerability

    - by Sergey Litvinov
    I found one issue with InternalsVisibleTo attribute usage. The idea of InternalsVisibleTo attribute to allow some other assemblies to use internal classes\methods of this assembly. To make it work you need sign your assemblies. So, if other assemblies isn't specified in main assembly and if they have incorrect public key, then they can't use Internal members. But the issue in Reflection Emit type generation. For example, we have CorpLibrary1 assembly and it has such class: public class TestApi { internal virtual void DoSomething() { Console.WriteLine("Base DoSomething"); } public void DoApiTest() { // some internal logic // ... // call internal method DoSomething(); } } This assembly is marked with such attribute to allow another CorpLibrary2 to make inheritor for that TestAPI and override behaviour of DoSomething method. [assembly: InternalsVisibleTo("CorpLibrary2, PublicKey=0024000004800000940000000602000000240000525341310004000001000100434D9C5E1F9055BF7970B0C106AAA447271ECE0F8FC56F6AF3A906353F0B848A8346DC13C42A6530B4ED2E6CB8A1E56278E664E61C0D633A6F58643A7B8448CB0B15E31218FB8FE17F63906D3BF7E20B9D1A9F7B1C8CD11877C0AF079D454C21F24D5A85A8765395E5CC5252F0BE85CFEB65896EC69FCC75201E09795AAA07D0")] The issue is that I'm able to override this internal DoSomething method and break class logic. My steps to do it: Generate new assembly in runtime via AssemblyBuilder Get AssemblyName from CorpLibrary1 and copy PublikKey to new assembly Generate new assembly that will inherit TestApi class As PublicKey and name of generated assembly is the same as in InternalsVisibleTo, then we can generate new DoSomething method that will override internal method in TestAPI assembly Then we have another assembly that isn't related to this CorpLibrary1 and can't use internal members. We have such test code in it: class Program { static void Main(string[] args) { var builder = new FakeBuilder(InjectBadCode, "DoSomething", true); TestApi fakeType = builder.CreateFake(); fakeType.DoApiTest(); // it will display: // Inject bad code // Base DoSomething Console.ReadLine(); } public static void InjectBadCode() { Console.WriteLine("Inject bad code"); } } And this FakeBuilder class has such code: /// /// Builder that will generate inheritor for specified assembly and will overload specified internal virtual method /// /// Target type public class FakeBuilder { private readonly Action _callback; private readonly Type _targetType; private readonly string _targetMethodName; private readonly string _slotName; private readonly bool _callBaseMethod; public FakeBuilder(Action callback, string targetMethodName, bool callBaseMethod) { int randomId = new Random((int)DateTime.Now.Ticks).Next(); _slotName = string.Format("FakeSlot_{0}", randomId); _callback = callback; _targetType = typeof(TFakeType); _targetMethodName = targetMethodName; _callBaseMethod = callBaseMethod; } public TFakeType CreateFake() { // as CorpLibrary1 can't use code from unreferences assemblies, we need to store this Action somewhere. // And Thread is not bad place for that. It's not the best place as it won't work in multithread application, but it's just a sample LocalDataStoreSlot slot = Thread.AllocateNamedDataSlot(_slotName); Thread.SetData(slot, _callback); // then we generate new assembly with the same nameand public key as target assembly trusts by InternalsVisibleTo attribute var newTypeName = _targetType.Name + "Fake"; var targetAssembly = Assembly.GetAssembly(_targetType); AssemblyName an = new AssemblyName(); an.Name = GetFakeAssemblyName(targetAssembly); // copying public key to new generated assembly var assemblyName = targetAssembly.GetName(); an.SetPublicKey(assemblyName.GetPublicKey()); an.SetPublicKeyToken(assemblyName.GetPublicKeyToken()); AssemblyBuilder assemblyBuilder = Thread.GetDomain().DefineDynamicAssembly(an, AssemblyBuilderAccess.RunAndSave); ModuleBuilder moduleBuilder = assemblyBuilder.DefineDynamicModule(assemblyBuilder.GetName().Name, true); // create inheritor for specified type TypeBuilder typeBuilder = moduleBuilder.DefineType(newTypeName, TypeAttributes.Public | TypeAttributes.Class, _targetType); // LambdaExpression.CompileToMethod can be used only with static methods, so we need to create another method that will call our Inject method // we can do the same via ILGenerator, but expression trees are more easy to use MethodInfo methodInfo = CreateMethodInfo(moduleBuilder); MethodBuilder methodBuilder = typeBuilder.DefineMethod(_targetMethodName, MethodAttributes.Public | MethodAttributes.Virtual); ILGenerator ilGenerator = methodBuilder.GetILGenerator(); // call our static method that will call inject method ilGenerator.EmitCall(OpCodes.Call, methodInfo, null); // in case if we need, then we put call to base method if (_callBaseMethod) { var baseMethodInfo = _targetType.GetMethod(_targetMethodName, BindingFlags.NonPublic | BindingFlags.Instance); // place this to stack ilGenerator.Emit(OpCodes.Ldarg_0); // call the base method ilGenerator.EmitCall(OpCodes.Call, baseMethodInfo, new Type[0]); // return ilGenerator.Emit(OpCodes.Ret); } // generate type, create it and return to caller Type cheatType = typeBuilder.CreateType(); object type = Activator.CreateInstance(cheatType); return (TFakeType)type; } /// /// Get name of assembly from InternalsVisibleTo AssemblyName /// private static string GetFakeAssemblyName(Assembly assembly) { var internalsVisibleAttr = assembly.GetCustomAttributes(typeof(InternalsVisibleToAttribute), true).FirstOrDefault() as InternalsVisibleToAttribute; if (internalsVisibleAttr == null) { throw new InvalidOperationException("Assembly hasn't InternalVisibleTo attribute"); } var ind = internalsVisibleAttr.AssemblyName.IndexOf(","); var name = internalsVisibleAttr.AssemblyName.Substring(0, ind); return name; } /// /// Generate such code: /// ((Action)Thread.GetData(Thread.GetNamedDataSlot(_slotName))).Invoke(); /// private LambdaExpression MakeStaticExpressionMethod() { var allocateMethod = typeof(Thread).GetMethod("GetNamedDataSlot", BindingFlags.Static | BindingFlags.Public); var getDataMethod = typeof(Thread).GetMethod("GetData", BindingFlags.Static | BindingFlags.Public); var call = Expression.Call(allocateMethod, Expression.Constant(_slotName)); var getCall = Expression.Call(getDataMethod, call); var convCall = Expression.Convert(getCall, typeof(Action)); var invokExpr = Expression.Invoke(convCall); var lambda = Expression.Lambda(invokExpr); return lambda; } /// /// Generate static class with one static function that will execute Action from Thread NamedDataSlot /// private MethodInfo CreateMethodInfo(ModuleBuilder moduleBuilder) { var methodName = "_StaticTestMethod_" + _slotName; var className = "_StaticClass_" + _slotName; TypeBuilder typeBuilder = moduleBuilder.DefineType(className, TypeAttributes.Public | TypeAttributes.Class); MethodBuilder methodBuilder = typeBuilder.DefineMethod(methodName, MethodAttributes.Static | MethodAttributes.Public); LambdaExpression expression = MakeStaticExpressionMethod(); expression.CompileToMethod(methodBuilder); var type = typeBuilder.CreateType(); return type.GetMethod(methodName, BindingFlags.Static | BindingFlags.Public); } } remarks about sample: as we need to execute code from another assembly, CorpLibrary1 hasn't access to it, so we need to store this delegate somewhere. Just for testing I stored it in Thread NamedDataSlot. It won't work in multithreaded applications, but it's just a sample. I know that we use Reflection to get private\internal members of any class, but within reflection we can't override them. But this issue is allows anyone to override internal class\method if that assembly has InternalsVisibleTo attribute. I tested it on .Net 3.5\4 and it works for both of them. How does it possible to just copy PublicKey without private key and use it in runtime? The whole sample can be found there - https://github.com/sergey-litvinov/Tests_InternalsVisibleTo UPDATE1: That test code in Program and FakeBuilder classes hasn't access to key.sn file and that library isn't signed, so it hasn't public key at all. It just copying it from CorpLibrary1 by using Reflection.Emit

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  • dequeueReusableCell:withIdentifier: returns a cell even if it is not there?

    - by lostInTransit
    Hi I am using SDK 3.2 to create an iPad application. In my table I have 2 kinds of rows, one with a custom accessory view and another without any. I use two different cell identifiers for creating these. The first cell is created properly (dequeueReusable... returns a nil and the cell is initialized). But when a call is made to dequeueReusable.. with the other cell identifier, the cell is not nil (it should be because this is the first time the identifier is being used) An even stranger part is that when I use this cell to set the textLabel's text, it returns an EXC_BAD_ACCESS. So 2 questions Why is dequeueReusable... returning a cell when there is no cell created using the said identifier Even if it does return a cell, why is access to textLabel causing a crash? Thanks.

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  • ViewModel with SelectList binding in ASP.NET MVC2

    - by Junto
    I am trying to implement an Edit ViewModel for my Linq2SQL entity called Product. It has a foreign key linked to a list of brands. Currently I am populating the brand list via ViewData and using DropDownListFor, thus: <div class="editor-field"> <%= Html.DropDownListFor(model => model.BrandId, (SelectList)ViewData["Brands"])%> <%= Html.ValidationMessageFor(model => model.BrandId) %> </div> Now I want to refactor the view to use a strongly typed ViewModel and Html.EditorForModel(): <% using (Html.BeginForm()) {%> <%= Html.ValidationSummary(true) %> <fieldset> <legend>Fields</legend> <%=Html.EditorForModel() %> <p> <input type="submit" value="Save" /> </p> </fieldset> <% } %> In my Edit ViewModel, I have the following: public class EditProductViewModel { [HiddenInput] public int ProductId { get; set; } [Required()] [StringLength(200)] public string Name { get; set; } [Required()] [DataType(DataType.Html)] public string Description { get; set; } public IEnumerable<SelectListItem> Brands { get; set; } public int BrandId { get; set; } public EditProductViewModel(Product product, IEnumerable<SelectListItem> brands) { this.ProductId = product.ProductId; this.Name = product.Name; this.Description = product.Description; this.Brands = brands; this.BrandId = product.BrandId; } } The controller is setup like so: public ActionResult Edit(int id) { BrandRepository br = new BrandRepository(); Product p = _ProductRepository.Get(id); IEnumerable<SelectListItem> brands = br.GetAll().ToList().ToSelectListItems(p.BrandId); EditProductViewModel model = new EditProductViewModel(p, brands); return View("Edit", model); } The ProductId, Name and Description display correctly in the generated view, but the select list does not. The brand list definitely contains data. If I do the following in my view, the SelectList is visible: <% using (Html.BeginForm()) {%> <%= Html.ValidationSummary(true) %> <fieldset> <legend>Fields</legend> <%=Html.EditorForModel() %> <div class="editor-label"> <%= Html.LabelFor(model => model.BrandId) %> </div> <div class="editor-field"> <%= Html.DropDownListFor(model => model.BrandId, Model.Brands)%> <%= Html.ValidationMessageFor(model => model.BrandId) %> </div> <p> <input type="submit" value="Save" /> </p> </fieldset> <% } %> What am I doing wrong? Does EditorForModel() not generically support the SelectList? Am I missing some kind of DataAnnotation? I can't seem to find any examples of SelectList usage in ViewModels that help. I'm truly stumped. This answer seems to be close, but hasn't helped.

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    - by Justin Johnson
    How do you implement a multiselect combobox as part of a Ext.FormPanel using ExtJs? I've been looking, but can't seem to find a solution that is compatible with the latest version of ExtJs (this question is similar, but doesn't have a working/current solution). This is what I have so far, but it's a single select: new Ext.FormPanel({ labelAlign: 'top', frame: true, width: 800, items: [{ layout: 'column', items:[{ columnWidth: 1, layout: 'form', items: [{ xtype: 'combo', fieldLabel: 'Countries', name: 'c[]', anchor: '95%', allowBlank: false, typeAhead: true, triggerAction: 'all', lazyRender: true, mode: 'local', store: new Ext.data.ArrayStore({ id: 0, fields: ['myId', 'displayText'], data: [ ["CA", 'Canada'], ["US", 'United States'], ["JP", 'Japan'], ] }), valueField: 'myId', displayField: 'displayText' }] }] }] }).render(document.body); I didn't see any parameters in the documentation that suggests that this is supported. I also found this and this but I could only get them working with Ext 2.

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