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• Django authentication in django nonrel on GAE

  - by tooba

  I'm using the Django nonrel project on a google app engine project running locally in development. I've created my own models and these are fine when they are saved and retrieved in the datastore. I'm hoping to use django.contrib.auth to provide the user functionality. I can use the shell to create users and these get assigned an ID. When I create one of my own models which references User I have to pass in a user ID as it quite rightly fails otherwise. However, checking via the gae admin interface I can't see the User model in the datastore for the users I've created via the shell. Nor can I retreive the user details from one of my models which references them. Calls to mymodel.user.username return nothing. Nor can I log into admin using the username and password I've set up. I can see saved versions of the models I've made in the gae admin app. I get the impression that users are being created somewhere other than the datastore. Is there something else I need to do to use the standard contrib.auth users with django-nonrel and gae?

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• iPhone Developer Program registration for UK trading partnership

  - by CMLloyd

  I have been looking into this for a long time and have found no definitive answer. I can't be the only person to have faced this problem and am wondering how you guys proceeded in similar cases. I'm part of a partnership, based in the UK, trading as, lets say, "ABCD iPhone Apps" (legally, a perfectly legitimate way of doing business). I've now developed an iPhone App and I want our company name ("ABCD iPhone Apps") to appear as the seller in the App Store. This way, any future Apps that we develop can all get released under the "ABCD iPhone Apps" aegis too. Given that we aren't an incorporated company (and probably never will be), is it possible for us to enroll in the iPhone Developer Program as a company? Or is there another solution? (Note: I do also have an Individual account but that is for personal projects and is in no way connected to the partnership, and shall remain that way) EDIT: I've just spoken to a guy at ADC UK and he tells me there is no other solution. For a company to be approved on the Developer Program, Apple needs to see a copy of the company's Certificate of Incorporation during the registration process, otherwise no approval.

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• Making Spring Data JPA work with DataNucleus (GAE) (Spring Boot)

  - by xybrek

  There are several hints that Spring Data works with Google App Engine like: http://tommysiu.blogspot.com/2014/01/spring-data-on-gae-part-1.html http://blog.eisele.net/2009/07/spring-300m3-on-google-appengine-with.html Much of the examples are not "Spring Boot" so I've been trying to retrofit things with it. However, I've been stuck with this error for days and days: [INFO] Caused by: java.lang.NullPointerException [INFO] at org.datanucleus.api.jpa.metamodel.SingularAttributeImpl.isVersion(SingularAttributeImpl.java:79) [INFO] at org.springframework.data.jpa.repository.support.JpaMetamodelEntityInformation.findVersionAttribute(JpaMetamodelEntityInformation.java:102) [INFO] at org.springframework.data.jpa.repository.support.JpaMetamodelEntityInformation.<init>(JpaMetamodelEntityInformation.java:79) [INFO] at org.springframework.data.jpa.repository.support.JpaEntityInformationSupport.getMetadata(JpaEntityInformationSupport.java:65) [INFO] at org.springframework.data.jpa.repository.support.JpaRepositoryFactory.getEntityInformation(JpaRepositoryFactory.java:149) [INFO] at org.springframework.data.jpa.repository.support.JpaRepositoryFactory.getTargetRepository(JpaRepositoryFactory.java:88) [INFO] at org.springframework.data.jpa.repository.support.JpaRepositoryFactory.getTargetRepository(JpaRepositoryFactory.java:68) [INFO] at org.springframework.data.repository.core.support.RepositoryFactorySupport.getRepository(RepositoryFactorySupport.java:158) [INFO] at org.springframework.data.repository.core.support.RepositoryFactoryBeanSupport.initAndReturn(RepositoryFactoryBeanSupport.java:224) [INFO] at org.springframework.data.repository.core.support.RepositoryFactoryBeanSupport.afterPropertiesSet(RepositoryFactoryBeanSupport.java:210) [INFO] at org.springframework.data.jpa.repository.support.JpaRepositoryFactoryBean.afterPropertiesSet(JpaRepositoryFactoryBean.java:92) [INFO] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory$6.run(AbstractAutowireCapableBeanFactory.java:1602) [INFO] at java.security.AccessController.doPrivileged(Native Method) [INFO] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1599) [INFO] at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1549) [INFO] ... 40 more Where, I'm trying to use Spring Data JPA with DataNucleus/AppEngine: @Configuration @ComponentScan @EnableJpaRepositories @EnableTransactionManagement class JpaApplicationConfig { private static final Logger logger = Logger .getLogger(JpaApplicationConfig.class.getName()); @Bean public EntityManagerFactory entityManagerFactory() { logger.info("Loading Entity Manager..."); return Persistence .createEntityManagerFactory("transactions-optional"); } @Bean public PlatformTransactionManager transactionManager() { logger.info("Loading Transaction Manager..."); final JpaTransactionManager txManager = new JpaTransactionManager(); txManager.setEntityManagerFactory(entityManagerFactory()); return txManager; } } I've tested Persistence.createEntityManagerFactory("transactions-optional"); to see if the app can persist using this EMF, well, it does, so I am sure that this EMF works fine. The problem is the "wiring" up with the Spring Data JPA, can anybody help?

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• Issue using GAE appcfg.py

  - by JustSmith

  I get nothing out of appcfg.py besides the default output. I'm trying to upload some data to my development project with no luck at at all. From the instructions on the Google App Engine page the steps are as follows: Edit app.yaml update with appcfg.py make upload script upload with appcfg.py After step one I try to run the update and it never shows any success. The following commands product the same output: appcfg.py appcfg.py update appDir appcfg.py update appDir/ appcfg.py update /appDir If i try to follow the instructions from the appcfg.py output and type help upload and get: "help <action>" I get a response from the system, This command is not supported by the help utility. Try "update /?". cause I'm calling the system help command. If I use the command appcfg.py help upload I get the same result as just typing appcfg.py Can someone show me examples of the syntax to update the dev site, upload data to it and get appcfg.py to actually give help on its commands? Also I'm just assuming that the upload script and the .csv file that are being uploaded are in they myApp directory. Appreciate any help,

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• Eclipse+PyDev+GAE memcache error

  - by bocco

  I've started using Eclipe+PyDev as an environment for developing my first app for Google App Engine. Eclipse is configured according to this tutorial. Everything was working until I start to use memcache. PyDev reports the errors and I don't know how to fix it: Error: Undefined variable from import: get How to fix this? Sure, it is only PyDev checker problem. Code is correct and run on GAE. UPDATE: I'm using PyDev 1.5.0 but experienced the same with 1.4.8. My PYTHONPATH includes (set in Project Properties/PyDev - PYTHONPATH): C:\Program Files\Google\google_appengine C:\Program Files\Google\google_appengine\lib\django C:\Program Files\Google\google_appengine\lib\webob C:\Program Files\Google\google_appengine\lib\yaml\lib UPDATE 2: I took a look at C:\Program Files\Google\google_appengine\google\appengine\api\memcache\__init__.py and found get() is not declared as memcache module function. They use the following trick to do that (I didn't hear about such possibility): _CLIENT = None def setup_client(client_obj): """Sets the Client object instance to use for all module-level methods. Use this method if you want to have customer persistent_id() or persistent_load() functions associated with your client. Args: client_obj: Instance of the memcache.Client object. """ global _CLIENT var_dict = globals() _CLIENT = client_obj var_dict['set_servers'] = _CLIENT.set_servers var_dict['disconnect_all'] = _CLIENT.disconnect_all var_dict['forget_dead_hosts'] = _CLIENT.forget_dead_hosts var_dict['debuglog'] = _CLIENT.debuglog var_dict['get'] = _CLIENT.get var_dict['get_multi'] = _CLIENT.get_multi var_dict['set'] = _CLIENT.set var_dict['set_multi'] = _CLIENT.set_multi var_dict['add'] = _CLIENT.add var_dict['add_multi'] = _CLIENT.add_multi var_dict['replace'] = _CLIENT.replace var_dict['replace_multi'] = _CLIENT.replace_multi var_dict['delete'] = _CLIENT.delete var_dict['delete_multi'] = _CLIENT.delete_multi var_dict['incr'] = _CLIENT.incr var_dict['decr'] = _CLIENT.decr var_dict['flush_all'] = _CLIENT.flush_all var_dict['get_stats'] = _CLIENT.get_stats setup_client(Client()) Hmm... Any idea how to force PyDev to recognize that?

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• Setting String as Image Source in C#

  - by Dan

  UPDATE: Okay I've changed my code to this: if (appSettings.Contains("image")) { Uri uri = new Uri( (string)appSettings["image"] + ".jpg", UriKind.Absolute); ImageSource imgSource = new BitmapImage(uri); myImage.Source = imgSource; } else { Uri uriDefault = new Uri("default.jpg", UriKind.Absolute); ImageSource imgSourceDefault = new BitmapImage(uriDefault); myImage.Source = imgSourceDefault; } But now I get "Invalid URI: The format of the URI could not be determined". Well I've looked up several methods to fix this in my Windows Phone 7 app but I can't seem to find anything that works. What confuses me is that I've done something just like this before with no problem, so I'm not sure why it's not working. The code causing me the problem is this: if (appSettings.Contains("image")) { myImage.Source = (string)appSettings["image"]; } else { myImage.Source = "default.jpg"; } The error I get is this "Cannot implicitly convert type 'string' to 'System.Windows.Media.ImageSource". The reason this confuses me is because I did this Twitter app tutorial: http://weblogs.asp.net/scottgu/archive/2010/03/18/building-a-windows-phone-7-twitter-application-using-silverlight.aspx , in which you bind the image source directly to a string. So what can I do to remedy this?

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• Change Address/Port of WSDL EndPointAddress at runtime?

  - by Pretzel

  So I currently have 3 WSDLs added as Service References in my solution. They look like this in my app.config file (I removed the "bindings" field, because it's uninteresting): <system.serviceModel> <client> <endpoint address="http://localhost:8080/query-service/jse" binding="basicHttpBinding" bindingConfiguration="QueryBinding" contract="QueryService.Query" name="QueryPort" /> <endpoint address="http://localhost:8080/platetype-service/jse" binding="basicHttpBinding" bindingConfiguration="PlateTypeBinding" contract="PlateTypeService.PlateType" name="PlateTypePort" /> <endpoint address="http://localhost:8080/dataimport-service/jse" binding="basicHttpBinding" bindingConfiguration="DataImportBinding" contract="DataImportService.DataImport" name="DataImportPort" /> </client> </system.serviceModel> When I utilize a WSDL, it looks something like this: using (DataService.DataClient dClient = new DataService.DataClient()) { DataService.importTask impt = new DataService.importTask(); impt.String_1 = "someData"; DataService.importResponse imptr = dClient.importTask(impt); } In the "using" statement, when instantiating the DataClient object, I have 5 constructors available to me. In this scenario, I use the default constructor: new DataService.DataClient() which uses the built-in Endpoint Address string, which is fine and good. But I want the user of the application to have the option to change this value. 1) What's the best/easiest way of programatically obtaining this string? 2) Then, once I've allowed the user to edit and test the value, where should I store it? I'd prefer having it be stored in a place (like app.config or equivalent) so that there is no need for checking whether the value exists or not and whether I should be using an alternate constructor. (Looking to keep my code tight, ya know?) Any ideas? Suggestions?

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• Appengine JDO dataclasses to python model

  - by M.A. Cape

  Does anyone have tried to implement an app in GAE having both java and python? I have an existing app and my front end is in java. Now I want to use the existing datastore to be interfaced by python. My problem is i don't know how to define the relationships and model that would be equivalent to the one in java. I have tried the one-to-many relationship in python but when stored in the datastore, the fields are different than the one-to-many of java. My data classes are as follows. //one-to-many owned Parent Class public class Parent{ @PrimaryKey @Persistent private String unitID; //some other fields... @Persistent @Order(extensions = @Extension(vendorName="datanucleus", key="list-ordering", value="dateCreated desc")) private List <Child> child; //methods & constructors were omitted } Child public class Child{ @PrimaryKey @Persistent(valueStrategy = IdGeneratorStrategy.IDENTITY) private Key uId; @Persistent private String name; /* etc... */ }

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• How do I create a hyperlink in java?

  - by Justin984

  I'm going through the google app engine tutorials at https://developers.google.com/appengine/docs/java/gettingstarted/usingusers I'm very new to google app engine, java and web programming in general. So my question is, at the bottom of the page it says to add a link to allow the user to log out. So far I've got this: public void doGet(HttpServletRequest req, HttpServletResponse resp) throws IOException { UserService userService = UserServiceFactory.getUserService(); User user = userService.getCurrentUser(); if(user != null){ resp.setContentType("text/plain"); resp.getWriter().println("Hello, " + user.getNickname()); String logoutLink = String.format("<a href=\"%s\">Click here to log out.</a>", userService.createLogoutURL(req.getRequestURI())); resp.getWriter().println(logoutLink); }else { resp.sendRedirect(userService.createLoginURL(req.getRequestURI())); } } However instead of a link, the full string is printed to the screen including the tags. When I look at the page source, I have no tags or any of the other stuff that goes with a webpage. I guess that makes sense considering I've done nothing to output any of that. Do I just do a bunch of resp.GetWriter().println() statements to output the rest of the webpage, or is there something else I don't know about? Thanks!

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• What is the difference between .get() and .fetch(1)

  - by AutomatedTester

  I have written an app and part of it is uses a URL parser to get certain data in a ReST type manner. So if you put /foo/bar as the path it will find all the bar items and if you put /foo it will return all items below foo So my app has a query like data = Paths.all().filter('path =', self.request.path).get() Which works brilliantly. Now I want to send this to the UI using templates {% for datum in data %} <div class="content"> <h2>{{ datum.title }}</h2> {{ datum.content }} </div> {% endfor %} When I do this I get data is not iterable error. So I updated the Django to {% for datum in data.all %} which now appears to pull more data than I was giving it somehow. It shows all data in the datastore which is not ideal. So I removed the .all from the Django and changed the datastore query to data = Paths.all().filter('path =', self.request.path).fetch(1) which now works as I intended. In the documentation it says The db.get() function fetches an entity from the datastore for a Key (or list of Keys). So my question is why can I iterate over a query when it returns with fetch() but can't with get(). Where has my understanding gone wrong?

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• Python: why does this code take forever (infinite loop?)

  - by Rosarch

  I'm developing an app in Google App Engine. One of my methods is taking never completing, which makes me think it's caught in an infinite loop. I've stared at it, but can't figure it out. Disclaimer: I'm using http://code.google.com/p/gaeunitlink text to run my tests. Perhaps it's acting oddly? This is the problematic function: def _traverseForwards(course, c_levels): ''' Looks forwards in the dependency graph ''' result = {'nodes': [], 'arcs': []} if c_levels == 0: return result model_arc_tails_with_course = set(_getListArcTailsWithCourse(course)) q_arc_heads = DependencyArcHead.all() for model_arc_head in q_arc_heads: for model_arc_tail in model_arc_tails_with_course: if model_arc_tail.key() in model_arc_head.tails: result['nodes'].append(model_arc_head.sink) result['arcs'].append(_makeArc(course, model_arc_head.sink)) # rec_result = _traverseForwards(model_arc_head.sink, c_levels - 1) # _extendResult(result, rec_result) return result Originally, I thought it might be a recursion error, but I commented out the recursion and the problem persists. If this function is called with c_levels = 0, it runs fine. The models it references: class Course(db.Model): dept_code = db.StringProperty() number = db.IntegerProperty() title = db.StringProperty() raw_pre_reqs = db.StringProperty(multiline=True) original_description = db.StringProperty() def getPreReqs(self): return pickle.loads(str(self.raw_pre_reqs)) def __repr__(self): return "%s %s: %s" % (self.dept_code, self.number, self.title) class DependencyArcTail(db.Model): ''' A list of courses that is a pre-req for something else ''' courses = db.ListProperty(db.Key) def equals(self, arcTail): for this_course in self.courses: if not (this_course in arcTail.courses): return False for other_course in arcTail.courses: if not (other_course in self.courses): return False return True class DependencyArcHead(db.Model): ''' Maintains a course, and a list of tails with that course as their sink ''' sink = db.ReferenceProperty() tails = db.ListProperty(db.Key) Utility functions it references: def _makeArc(source, sink): return {'source': source, 'sink': sink} def _getListArcTailsWithCourse(course): ''' returns a LIST, not SET there may be duplicate entries ''' q_arc_heads = DependencyArcHead.all() result = [] for arc_head in q_arc_heads: for key_arc_tail in arc_head.tails: model_arc_tail = db.get(key_arc_tail) if course.key() in model_arc_tail.courses: result.append(model_arc_tail) return result Am I missing something pretty obvious here, or is GAEUnit acting up?

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• "Detecting" and loading of "plugins" in GAE

  - by Patrick Cornelissen

  Hi! I have a "plugin like" architecture and I want to create one instance of each class that implements a dedicated interface and put these in a cache. (To have a singleton-ish effect). The plugins will be provided as jars and put into the app engine war file before the app is uploaded. I have tried to use the ClassPathScanningCandidateComponentProvider as I'm using spring anyway, but this didn't work. The provider complained that it was not able to find the HttpServletResponse class file while scanning the classpath. I can't get around this, when I add the servlet jar, then I'll get of course problems, because the same jar is also provided by the GAE. If I don't, I'm getting the error above... So I tried to add a static initialization code, but of course this doesn't work, because the class is initialized when it's instantiated for the first time. (Well I knew that but it was worth a try) The last chance I currently see is that I create a properties file with all plugin classes when the package is created, but this requires writing of a maven plugin etc. and I'd like to avoid that. Is there something that I am missing?

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• Avoid using InetAddress - Getting a raw IP address in network byte order

  - by Mylo

  Hey, I am trying to use the MaxMind GeoLite Country database on the Google App Engine. However, I am having difficulty getting the Java API to work as it relies on the InetAddress class which is not available to use on the App Engine. However, I am not sure if there is a simple workaround as it appears it only uses the InetAddress class to determine the IP of a given hostname. In my case, the hostname is always an IP anyway. What I need is a way to convert an IP address represented as a String into a byte array of network byte order (which the addr.getAddress() method of the InetAddress class provides). This is the code the current API uses, I need to find a way of removing all references to InetAddress whilst ensuring it still works! Thanks for your time. /** * Returns the country the IP address is in. * * @param ipAddress String version of an IP address, i.e. "127.0.0.1" * @return the country the IP address is from. */ public Country getCountry(String ipAddress) { InetAddress addr; try { addr = InetAddress.getByName(ipAddress); } catch (UnknownHostException e) { return UNKNOWN_COUNTRY; } return getCountry(bytesToLong(addr.getAddress())); }

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• &lsquo;Publish&hellip;&rsquo; Resulting in Directory With No Files

  - by ToStringTheory

  I was pulling my hair out with this one…  Which isn’t good considering I have so little of it left!  I had just upgraded to the Windows Azure 1.7 SDK the day before with no problems, and used the upgraded ‘Publish…’ dialog to successfully publish a website to my hard disk for hosting on an internal development server.  However, when trying to deploy another project to my file system, it said it was successful, but there were no files in the directory.  The only difference, the first project was an Azure project, the second was a standard ASP.Net Web Application.  If you installed the Windows Azure 1.7 SDK, you may want to read this. The Problem At first it appears that there is no problem: However you may remember that when publishing a web application, the output window will generally iterate through each of the directories as it copies the files from that directory over.  Sure enough, when looking at the output directory – there are no files, no bin directory, no nothing… Troubleshooting Since one site published and the other did not, I believed that the failure may have been to a failed SQL Server 2012 installation that happened between publish.  I rolled back the installation, however that did not work either.  I also checked the Configuration Manager dialog, and ensured that the projects were selected to actually build (just checking, even though the output said it built them..)  I checked the properties of the solution and the projects, and a selection of files in the project to make sure that they were selected for content…  Nothing seemed to work. I then decided to uninstall the Azure 1.7 SDK to see if that was the culprit.  When I opened the Windows 7 ‘Uninstall a Program’ dialog, I noticed that the Azure SDK came with 2 extra packages that just so happen to be in a Release Candidate state from Microsoft – ‘Microsoft Web Deploy 3.0’ and ‘Microsoft Web Publish – Visual Studio 2010’.  It dawned on me that the publish dialog must not be just for Azure, since it appeared when I tried to deploy the regular web application as well.  Therefore, it must have been an upgrade to the publish mechanism in Visual Studio.  I uninstalled both of the programs and received my old publish dialog once again, and was able to successfully publish the solution above as I had done before. After celebrating solving the problem, I tried reinstalling the Azure package, to see if it would repair the publishing process. Even though it brought back the updated dialogs, it did not publish any files. Instead of uninstalling and retreating, I now KNEW what the cause was, and these were packages not just for Azure. I now knew a product name to search for. The Solution Sure enough, with the correct search term in Google – ‘microsoft web publish no files’, and setting the timeline to 1 week, I found what I needed - Microsoft Connect - Publish Web Application FAILS! (by Andrew Rits). I am surprised that I missed something that ended up being so simple…  In the Configuration Manager, I had the following settings: This is how I had been building and debugging the solution always…  However, apparently when installing the new Web Publishing package, it does things a little differently in its configuration for publishing: You see the difference?  The configuration here is set to ‘x86’ instead of ‘Any CPU’.  Sure enough, as soon as I switched the configuration to ‘Release – Any CPU’, the deployment built and published all of my files as I expected. Conclusion It was a small change, but apparently the new ‘Publish web application’ defaults to the x86 configuration, thereby not copying any of the project/bin files to the publish target directory.  I spent forever trying things, but this small drop down eluded me until I was able to target that the dialog was actually working apparently, I just didn’t have the correct configuration. I hope that this saves you the hours of frustration and hastened hair loss that it caused me…  I also hope that before Microsoft brings this publishing package out of RC status, that they change the behavior of that menu to default to the settings of the old publish menu for the first time. Happy Coding!

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• AD - Using UserPrincipal.FindByIdentity and PrincipalContext with nested OU - C#

  - by Solid Snake

  Here is what I am trying to achieve: I have a nested OU structure that is about 5 levels deep. OU=Portal,OU=Dev,OU=Apps,OU=Grps,OU=Admin,DC=test,DC=com I am trying to find out if the user has permissions/exists at OU=Portal. Here's a snippet of what I currently have: PrincipalContext domain = new PrincipalContext( ContextType.Domain, "test.com", "OU=Portal,OU=Dev,OU=Apps,OU=Grps,OU=Admin,DC=test,DC=com"); UserPrincipal user = UserPrincipal.FindByIdentity(domain, myusername); PrincipalSearchResult<Principal> group = user.GetAuthorizationGroups(); For some unknown reason, the value user generated from the above code is always null. However, if I were to drop all the OU as follows: PrincipalContext domain = new PrincipalContext( ContextType.Domain, "test.com", "DC=test,DC=com"); UserPrincipal user = UserPrincipal.FindByIdentity(domain, myusername); PrincipalSearchResult<Principal> group = user.GetAuthorizationGroups(); this would work just fine and return me the correct user. I am simply trying to reduce the number of results as opposed to getting everything from AD. Is there anything that I am doing wrong? I've googled for hours and tested various combinations without much luck. Any help is appreciated. Thanks. Dan

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• How to get foreignSecurityPrincipal from group. using DirectorySearcher

  - by kain64b

  What I tested with 0 results: string queryForeignSecurityPrincipal = "(&(objectClass=foreignSecurityPrincipal)(memberof:1.2.840.113556.1.4.1941:={0})(uSNChanged>={1})(uSNChanged<={2}))"; sidsForeign = GetUsersSidsByQuery(groupName, string.Format(queryForeignSecurityPrincipal, groupPrincipal.DistinguishedName, 0, 0)); public IList<SecurityIdentifier> GetUsersSidsByQuery(string groupName, string query) { List<SecurityIdentifier> results = new List<SecurityIdentifier>(); try{ using (var context = new PrincipalContext(ContextType.Domain, DomainName, User, Password)) { using (var groupPrincipal = GroupPrincipal.FindByIdentity(context, IdentityType.SamAccountName, groupName)) { DirectoryEntry directoryEntry = (DirectoryEntry)groupPrincipal.GetUnderlyingObject(); do { directoryEntry = directoryEntry.Parent; } while (directoryEntry.SchemaClassName != "domainDNS"); DirectorySearcher searcher = new DirectorySearcher(directoryEntry){ SearchScope=System.DirectoryServices.SearchScope.Subtree, Filter=query, PageSize=10000, SizeLimit = 15000 }; searcher.PropertiesToLoad.Add("objectSid"); searcher.PropertiesToLoad.Add("distinguishedname"); using (SearchResultCollection result = searcher.FindAll()) { foreach (var obj in result) { if (obj != null) { var valueProp = ((SearchResult)obj).Properties["objectSid"]; foreach (var atributeValue in valueProp) { SecurityIdentifier value = (new SecurityIdentifier((byte[])atributeValue, 0)); results.Add(value); } } } } } } } catch (Exception e) { WriteSystemError(e); } return results; } I tested it on usual users with query: "(&(objectClass=user)(memberof:1.2.840.113556.1.4.1941:={0})(uSNChanged>={1})(uSNChanged<={2}))" and it is work, I test with objectClass=* ... nothing help... But If I call groupPrincipal.GetMembers,I get all foreing user account from group. BUT groupPrincipal.GetMembers HAS MEMORY LEAK. Any Idea how to fix my query????

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• Invalid or expired security context token in WCF web service

  - by Damian

  All, I have a WCF web service (let's called service "B") hosted under IIS using a service account (VM, Windows 2003 SP2). The service exposes an endpoint that use WSHttpBinding with the default values except for maxReceivedMessageSize, maxBufferPoolSize, maxBufferSize and some of the time outs that have been increased. The web service has been load tested using Visual Studio Load Test framework with around 800 concurrent users and successfully passed all tests with no exceptions being thrown. The proxy in the unit test has been created from configuration. There is a sharepoint application that use the Office Sharepoint Server Search service to call web services "A" and "B". The application will get data from service "A" to create a request that will be sent to service "B". The response coming from service "B" is indexed for search. The proxy is created programmatically using the ChannelFactory. When service "A" takes less than 10 minutes, the calls to service "B" are successfull. But when service "A" takes more time (~20 minutes) the calls to service "B" throw the following exception: Exception Message: An unsecured or incorrectly secured fault was received from the other party. See the inner FaultException for the fault code and detail Inner Exception Message: The message could not be processed. This is most likely because the action 'namespace/OperationName' is incorrect or because the message contains an invalid or expired security context token or because there is a mismatch between bindings. The security context token would be invalid if the service aborted the channel due to inactivity. To prevent the service from aborting idle sessions prematurely increase the Receive timeout on the service endpoint's binding. The binding settings are the same, the time in both client server and web service server are synchronize with the Windows Time service, same time zone. When i look at the server where web service "B" is hosted i can see the following security errors being logged: Source: Security Category: Logon/Logoff Event ID: 537 User NT AUTHORITY\SYSTEM Logon Failure: Reason: An error occurred during logon Logon Type: 3 Logon Process: Kerberos Authentication Package: Kerberos Status code: 0xC000006D Substatus code: 0xC0000133 After reading some of the blogs online, the Status code means STATUS_LOGON_FAILURE and the substatus code means STATUS_TIME_DIFFERENCE_AT_DC. but i already checked both server and client clocks and they are syncronized. I also noticed that the security token seems to be cached somewhere in the client server because they have another process that calls the web service "B" using the same service account and successfully gets data the first time is called. Then they start the proccess to update the office sharepoint server search service indexes and it fails. Then if they called the first proccess again it will fail too. Has anyone experienced this type of problems or have any ideas? Regards, --Damian

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• How to remove illegal characters from path and filenames?

  - by Gary Willoughby

  I need a robust and simple way to remove illegal path and file characters from a simple string. I've used the below code but it doesn't seem to do anything, what am i missing? using System; using System.IO; namespace ConsoleApplication1 { class Program { static void Main(string[] args) { string illegal = "\"M<>\"\\a/ry/ h**ad:>> a\\/:*?\"<>| li*tt|le|| la\"mb.?"; illegal = illegal.Trim(Path.GetInvalidFileNameChars()); illegal = illegal.Trim(Path.GetInvalidPathChars()); Console.WriteLine(illegal); Console.ReadLine(); } } }

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• Extending GroupPrincipal and Members property

  - by Paolo Tedesco

  I want to extend the GroupPrincipal class to handle some custom properties: using System.DirectoryServices.AccountManagement; [DirectoryRdnPrefix("CN")] [DirectoryObjectClass("group")] public class MyGroupPrincipal : GroupPrincipal { // ... } How could I override the Members property for MyGroupPrincipal so that if it has a member that is a group an instance of MyGroupPrincipal and not of GroupPrincipal is returned? I would like to write e.g. MyGroupPrincipal group = GetGroup(); foreach (var m in group.Members) { if (m is MyGroupPrincipal) { // always fails: m is a normal GroupPrincipal // do something } }

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• TFS - How much nesting on disk structure

  - by NealWalters

  We just got TFS installed and ready go. I'm trying to decide on the disk structure. Let's suppose I have two BizTalk projects called Common and BookTransfer (in actuality I have 7). [At this client, we adopted the style of having schemas, orchs, maps in one project called BizTalk.Artifacts]. A folder with the name "components" is C# code. We are using a CodePlex tool called BizTalk deployment framework which somewhat dictates part of the structure. I'm trying to decide how much nesting we should do on the disk directories (EC is the application name, and Common/BookTransfer or BizTalk Applications separated out for easier deploy/undeploy). Proposal #1: -EC - Main - Source - Common - Company.EC.Common.Biztalk.Artifacts [folder] - Company.EC.Common.BizTalk.Components [folder] - Company.EC.Common.Biztalk.Deployment [folder] - Company.EC.BookTransfer.BizTalk.sln - BookTransfer - Company.EC.BookTransfer.BizTalk.Artifacts [folder] - Company.EC.BookTransfer.BizTalk.Components [folder] - Company.EC.BookTransfer.BizTalk.Components.UnitTest [folder] - Company.EC.BookTransfer.BizTalk.Deployment [folder] - Company.EC.BookTransfer.BizTalk.sln Proposal #2 - a flatter approach -EC - Main - Source - Company.EC.Common.BizTalk.sln - Company.EC.BookTransfer.BizTalk.sln - Company.EC.Common.Biztalk.Artifacts [folder] - Company.EC.Common.BizTalk.Components [folder] - Company.EC.Common.Biztalk.Deployment [folder] - Company.EC.BookTransfer.BizTalk.Artifacts [folder] - Company.EC.BookTransfer.BizTalk.Components [folder] - Company.EC.BookTransfer.BizTalk.Components.UnitTest [folder] - Company.EC.BookTransfer.BizTalk.Deployment [folder] Current Structure (perhaps too many nested folders) Main Source Company EC Common BizTalk -Company .EC.Common.Biztalk.Artifacts [folder] -Company .EC.Common.BizTalk.Components [folder] -Company .EC.Common.Biztalk.Deployment [folder] Company.EC.BookTransfer.BizTalk.sln BookTransfer BizTalk Company.EC.BookTransfer.BizTalk.Artifacts [folder] Company.EC.BookTransfer.BizTalk.Components [folder] Company.EC.BookTransfer.BizTalk.Components.UnitTest [folder] Company.EC.BookTransfer.BizTalk.Deployment [folder] Company.EC.BookTransfer.BizTalk.sln Thanks, Neal Walters

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• Request a user's roles in AD when caller is not in domain

  - by grootjans

  I would like to get a user's group memberships in an ActiveDirectory, without being in the domain. When I run this inside the domain, all is well. var context = new PrincipalContext(ContextType.Domain); var principal = UserPrincipal.FindByIdentity(context, IdentityType.Name, "administrator"); foreach (var authorizationGroup in principal.GetAuthorizationGroups()) { Console.WriteLine(authorizationGroup.Name); } However, when I run outside the domain, I have to specify the PrincipalContext lie this: var context = new PrincipalContext(ContextType.Domain, "10.0.1.255", "DC=test,DC=ad,DC=be", "administrator", "password"); When I run this code, I get an exception when I execute principal.GetAuthorizationGroups(). The exception I get is: System.DirectoryServices.AccountManagement.PrincipalOperationException: Information about the domain could not be retrieved (1355). at System.DirectoryServices.AccountManagement.Utils.GetDcName(String computerName, String domainName, String siteName, Int32 flags) at System.DirectoryServices.AccountManagement.ADStoreCtx.LoadDomainInfo() at System.DirectoryServices.AccountManagement.ADStoreCtx.get_DnsDomainName() at System.DirectoryServices.AccountManagement.ADStoreCtx.GetGroupsMemberOfAZ(Principal p) at System.DirectoryServices.AccountManagement.UserPrincipal.GetAuthorizationGroupsHelper() at System.DirectoryServices.AccountManagement.UserPrincipal.GetAuthorizationGroups()

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• Granting rights to Windows domain Users in Ubuntu?

  - by Pseudonymous

  I've connected an Ubuntu 9.10 server to my Windows domain with Likewise Open. I am able to log into the server with my domain account (as DOMAIN\user), but my administrative rights don't carry over. How can I grant admin rights to domain user accounts?

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• How to check whether a user belongs to an AD group and nested groups?

  - by elsharpo

  hi guys, I have an ASP.NET 3.5 application using Windows Authentication and implementing our own RoleProvider. Problem is we want to restrict access to a set of pages to a few thousand users and rathern than inputing all of those one by one we found out they belong to an AD group. The answer is simple if the common group we are checking membership against the particular user is a direct member of it but the problem I'm having is that if the group is a member of another group and then subsequently member of another group then my code always returns false. For example: Say we want to check whether User is a member of group E, but User is not a direct member of *E", she is a member of "A" which a member of "B" which indeed is a member of E, therefore User is a member of *E" One of the solutions we have is very slow, although it gives the correct answer using (var context = new PrincipalContext(ContextType.Domain)) { using (var group = GroupPrincipal.FindByIdentity(context, IdentityType.Name, "DL-COOL-USERS")) { var users = group.GetMembers(true); // recursively enumerate return users.Any(a => a.Name == "userName"); } } The original solution and what I was trying to get to work, using .NET 3.5 System.DirectoryServices.AccountManagement and it does work when users are direct members of the group in question is as follows: public bool IsUserInGroup(string userName, string groupName) { var cxt = new PrincipalContext(ContextType.Domain, "DOMAIN"); var user = UserPrincipal.FindByIdentity(cxt, IdentityType.SamAccountName, userName); if (user == null) { return false; } var group = GroupPrincipal.FindByIdentity(cxt, groupName); if (group == null) { return false; } return user.IsMemberOf(group); } The bottom line is, we need to check for membership even though the groups are nested in many levels down. Thanks a lot!

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• How can I 301 redirect domain.com/tag/* to domain.com/blog/tag/*

  - by Craig Dennis

  Hi, I am trying to redirect links to domain.com/tag/* to domain.com/blog/tag/* (where * is the actual tag name - eg music so domain.com/tag/music would redirect to domain.com/blog/tag/music) I have been trying but I just can't wrap my head around it. Any help would be appreciated. Thanks

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• using a "temporary files" folder in python

  - by zubin71

  I recently wrote a script which queries PyPI and downloads a package; however, the package gets downloaded to a user defined folder. I`d like to modify the script in such a way that my downloaded files go into a temporary folder, if the folder is not specified. The temporary-files folder in *nix machines is "/tmp" ; would there be any Python method I could use to find out the temporary-files folder in a particular machine? If not, could someone suggest an alternative to this problem?

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