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• The architecture and technologies to use for a secure, fast, reliable and easily scalable web application

  - by DSoul

  ^ For actual questions, skip to the lists down below I understand, that his is a vague topic, but please, before you turn the other way and disregard me, hear me out. I am currently doing research for a web application(I don't know if application is the correct word for it, but I will proceed w/ that for now), that one day might need to be everything mentioned in the title. I am bound by nothing. That means that every language, OS and framework is acceptable, but only if it proves it's usefulness. And if you are going to say, that scalability and speed depend on the code I write for this application, then I agree, but I am just trying to find something, that wouldn't stand in my way later on. I have done quite a bit reading on this subject, but I still don't have a clear picture, to what suits my needs, so I come to you, StackOverflow, to give me directions. I know you all must be wondering what I'm building, but I assure you, that it doesn't matter. I have heard of 12 factor app though, if you have any similar guidelines or what is, to suggest the please, go ahead. For the sake of keeping your answers as open as possible, I'm not gonna provide you my experience regarding anything written in this question. ^ Skippers, start here First off - the weights of the requirements are probably something like that (on a scale of 10): Security - 10 Speed - 5 Reliability (concurrency) - 7.5 Scalability - 10 Speed and concurrency are not a top priority, in the sense, that the program can be CPU intensive, and therefore slow, and only accept a not-that-high number of concurrent users, but both of these factors must be improvable by scaling the system Anyway, here are my questions: How many layers should the application have, so it would be future-proof and could best fulfill the aforementioned requirements? For now, what I have in mind is the most common version: Completely separated front end, that might be a web page or an MMI application or even both. Some middle-ware handling communication between the front and the back end. This is probably a server that communicates w/ the front end via HTTP. How the communication w/ the back end should be handled is probably dependent on the back end. The back end. Something that handles data through resources like DB and etc. and does various computations w/ the data. This, as the highest priority part of the software, must be easily spread to multiple computers later on and have no known security holes. I think ideally the middle-ware should send a request to a queue from where one of the back end processes takes this request, chops it up to smaller parts and buts these parts of the request back onto the same queue as the initial request, after what these parts will be then handled by other back end processes. Something *map-reduce*y, so to say. What frameworks, languages and etc. should these layers use? The technologies used here are not that important at this moment, you can ignore this part for now I've been pointed to node.js for this part. Do you guys know any better alternatives, or have any reasons why I should (not) use node.js for this particular job. I actually have no good idea, what to use for this job, there are too many options out there, so please direct me. This part (and the 2. one also, I think) depend a lot on the OS, so suggest any OSs alongside w/ the technologies/frameworks. Initially, all computers (or 1 for starters) hosting the back end are going to be virtual machines. Please do give suggestions to any part of the question, that you feel you have comprehensive knowledge and/or experience of. And also, point out if you feel that any part of the current set-up means an instant (or even distant) failure or if I missed a very important aspect to consider. I'm not looking for a definitive answer for how to achieve my goals, because there certainly isn't one, for I haven't provided you w/ all the required information. I'm just looking for recommendations and directions on what to look into. Also, bare in mind, that this isn't something that I have to get done quickly, to sell and let it be re-written by the new owner (which, I've been told for multiple times, is what I should aim for). I have all the time in the world and I really just want to learn doing something really high-end. Also, excuse me if my language isn't the best, I'm not a native. Anyway. Thanks in advance to anyone, who takes the time to help me out here. PS. When I do seem to come up w/ a good architecture/design for this project, I will certainly make it an open project and keep you guys up to date w/ it's development. As in what you could have told me earlier and etc. For obvious reasons the very same question got closed on SO, but could you guys still help me?.

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• Getting the JSESSIONID from the response Headers in C#

  - by acadia

  Hello, In my C# Windows application I am building a web request and getting the response back Uri uri = null; string workplaceURL = "http://filenet:9081/WorkPlaceXT"; uri = new Uri(workplaceURL + "/setCredentials?op=getUserToken&userId=" + encodeLabel(userName) + "&password=" + encodeLabel(pwd) + "&verify=true"); System.Net.WebRequest webRequest = System.Net.WebRequest.Create(uri); System.Net.WebResponse webResponse = webRequest.GetResponse(); StreamReader streamReader = new StreamReader(webResponse.GetResponseStream()); and I am getting the headers back as shown below ?webResponse.Headers {ResultXml: <?xml version="1.0"?><response><errorcode>0</errorcode><description>Success.</description></response> Content-Language: en-US Content-Length: 201 Cache-Control: no-cache="set-cookie, set-cookie2" Date: Thu, 03 Jun 2010 16:10:12 GMT Expires: Thu, 01 Dec 1994 16:00:00 GMT Set-Cookie: JSESSIONID=0000GiPPR9PPceZSv6d0FC4-vcT:-1; Path=/ Server: WebSphere Application Server/6.1 } base {System.Collections.Specialized.NameValueCollection}: {ResultXml: <?xml version="1.0"?><response><errorcode>0</errorcode><description>Success.</description></response> Content-Language: en-US Content-Length: 201 Cache-Control: no-cache="set-cookie, set-cookie2" Date: Thu, 03 Jun 2010 16:10:12 GMT Expires: Thu, 01 Dec 1994 16:00:00 GMT Set-Cookie: JSESSIONID=0000GiPPR9PPceZSv6d0FC4-vcT:-1; Path=/ Server: WebSphere Application Server/6.1 How do I fetch just the JSESSIONID? as I need to pass the JSESSIOID to a different URL. Please help

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• MVC2 DataAnnotations on ViewModel - ModelState.isValid Always Returns true

  - by ScottSEA

  I have an MVC2 Application that uses MVVM pattern. I am trying use Data Annotations to validate form input. In my ThingsController I have two methods: [HttpGet] public ActionResult Index() { return View(); } public ActionResult Details(ThingsViewModel tvm) { if (!ModelState.IsValid) return View(tvm); try { Query q = new Query(tvm.Query); ThingRepository repository = new ThingRepository(q); tvm.Airplanes = repository.All(); return View(tvm); } catch (Exception) { return View(); } } My Details.aspx view is strongly typed to the ThingsViewModel: <%@ Page Title="" Language="C#" MasterPageFile="~/Views/Shared/Site.Master" Inherits="System.Web.Mvc.ViewPage<Config.Web.Models.ThingsViewModel>" %> The ViewModel is a class consisting of a IList of returned Thing objects and the Query string (which is submitted on the form) and has the Required data annotation: public class ThingsViewModel { public IList<Thing> Things{ get; set; } [Required(ErrorMessage="You must enter a query")] public string Query { get; set; } } When I run this, and click the submit button on the form without entering a value I get a YSOD with the following error: The model item passed into the dictionary is of type 'Config.Web.Models.ThingsViewModel', but this dictionary requires a model item of type System.Collections.Generic.IEnumerable`1[Config.Domain.Entities.Thing]'. How can I get Data Annotations to work with a ViewModel? I cannot see what I'm missing or where I'm going wrong - the VM was working just fine before I started mucking around with validation.

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• DataSet does not support System.Nullable<>

  - by a_m0d

  I'm trying to set the DataSource for a Crystal Reports report, but I've run into a few problems. I've been following a guide written by Mohammad Mahdi Ramezanpour, and have managed to get all the way to the last part now (setting the DataSource). However, I have a problem that Mohammad does not seem to have - when I pass the results of my query to the report, I end up with the following exception: DataSet does not support System.Nullable< This is the query I am using: public IQueryable<Part> GetPartsToDisplayOnStockReport() { return from part in db.Parts where part.showOnStockReport == true select part; } and the way I pass it to the Report: public ActionResult ViewStockReport() { StockReport stockReport = new StockReport(); var parts = ordersRepository.GetPartsToDisplayOnStockReport().ToList(); stockReport.SetDataSource(parts); Stream stream = stockReport.ExportToStream(CrystalDecisions.Shared.ExportFormatType.PortableDocFormat); return File(stream, "application/pdf"); } I have also tried changing my query to this code, in the hope that it would fix my problem: return (from part in db.Parts where part.showOnStockReport == true select part) ?? db.Parts.DefaultIfEmpty(); but it still complained about the same problem. How can I pass the results of this query to my report, to use it as a data source? Also, if each of my Parts object contains other objects / collections of other objects, will I be able to reference them in the report with a datasource like this?

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• ASP.NET MVC - dropdown list post handling problem

  - by ile

  I've had troubles for a few days already with handling form that contains dropdown list. I tried all that I've learned so far but nothing helps. This is my code: using System; using System.Collections.Generic; using System.Linq; using System.Web; using CMS; using CMS.Model; using System.ComponentModel.DataAnnotations; namespace Portal.Models { public class ArticleDisplay { public ArticleDisplay() { } public int CategoryID { set; get; } public string CategoryTitle { set; get; } public int ArticleID { set; get; } public string ArticleTitle { set; get; } public DateTime ArticleDate; public string ArticleContent { set; get; } } public class HomePageViewModel { public HomePageViewModel(IEnumerable<ArticleDisplay> summaries, Article article) { this.ArticleSummaries = summaries; this.NewArticle = article; } public IEnumerable<ArticleDisplay> ArticleSummaries { get; private set; } public Article NewArticle { get; private set; } } public class ArticleRepository { private DB db = new DB(); // // Query Methods public IQueryable<ArticleDisplay> FindAllArticles() { var result = from category in db.ArticleCategories join article in db.Articles on category.CategoryID equals article.CategoryID orderby article.Date descending select new ArticleDisplay { CategoryID = category.CategoryID, CategoryTitle = category.Title, ArticleID = article.ArticleID, ArticleTitle = article.Title, ArticleDate = article.Date, ArticleContent = article.Content }; return result; } public IQueryable<ArticleDisplay> FindTodayArticles() { var result = from category in db.ArticleCategories join article in db.Articles on category.CategoryID equals article.CategoryID where article.Date == DateTime.Today select new ArticleDisplay { CategoryID = category.CategoryID, CategoryTitle = category.Title, ArticleID = article.ArticleID, ArticleTitle = article.Title, ArticleDate = article.Date, ArticleContent = article.Content }; return result; } public Article GetArticle(int id) { return db.Articles.SingleOrDefault(d => d.ArticleID == id); } public IQueryable<ArticleDisplay> DetailsArticle(int id) { var result = from category in db.ArticleCategories join article in db.Articles on category.CategoryID equals article.CategoryID where id == article.ArticleID select new ArticleDisplay { CategoryID = category.CategoryID, CategoryTitle = category.Title, ArticleID = article.ArticleID, ArticleTitle = article.Title, ArticleDate = article.Date, ArticleContent = article.Content }; return result; } // // Insert/Delete Methods public void Add(Article article) { db.Articles.InsertOnSubmit(article); } public void Delete(Article article) { db.Articles.DeleteOnSubmit(article); } // // Persistence public void Save() { db.SubmitChanges(); } } } using System; using System.Collections.Generic; using System.Linq; using System.Web; using System.Web.Mvc; using Portal.Models; using CMS.Model; namespace Portal.Areas.CMS.Controllers { public class ArticleController : Controller { ArticleRepository articleRepository = new ArticleRepository(); ArticleCategoryRepository articleCategoryRepository = new ArticleCategoryRepository(); // // GET: /Article/ public ActionResult Index() { ViewData["categories"] = new SelectList ( articleCategoryRepository.FindAllCategories().ToList(), "CategoryId", "Title" ); Article article = new Article() { Date = DateTime.Now, CategoryID = 1 }; HomePageViewModel homeData = new HomePageViewModel(articleRepository.FindAllArticles().ToList(), article); return View(homeData); } // // GET: /Article/Details/5 public ActionResult Details(int id) { var article = articleRepository.DetailsArticle(id).Single(); if (article == null) return View("NotFound"); return View(article); } // // GET: /Article/Create //public ActionResult Create() //{ // ViewData["categories"] = new SelectList // ( // articleCategoryRepository.FindAllCategories().ToList(), "CategoryId", "Title" // ); // Article article = new Article() // { // Date = DateTime.Now, // CategoryID = 1 // }; // return View(article); //} // // POST: /Article/Create [ValidateInput(false)] [AcceptVerbs(HttpVerbs.Post)] public ActionResult Create(Article article) { if (ModelState.IsValid) { try { // TODO: Add insert logic here articleRepository.Add(article); articleRepository.Save(); return RedirectToAction("Index"); } catch { return View(article); } } else { return View(article); } } // // GET: /Article/Edit/5 public ActionResult Edit(int id) { ViewData["categories"] = new SelectList ( articleCategoryRepository.FindAllCategories().ToList(), "CategoryId", "Title" ); var article = articleRepository.GetArticle(id); return View(article); } // // POST: /Article/Edit/5 [ValidateInput(false)] [AcceptVerbs(HttpVerbs.Post)] public ActionResult Edit(int id, FormCollection collection) { Article article = articleRepository.GetArticle(id); try { // TODO: Add update logic here UpdateModel(article, collection.ToValueProvider()); articleRepository.Save(); return RedirectToAction("Details", new { id = article.ArticleID }); } catch { return View(article); } } // // HTTP GET: /Article/Delete/1 public ActionResult Delete(int id) { Article article = articleRepository.GetArticle(id); if (article == null) return View("NotFound"); else return View(article); } // // HTTP POST: /Article/Delete/1 [AcceptVerbs(HttpVerbs.Post)] public ActionResult Delete(int id, string confirmButton) { Article article = articleRepository.GetArticle(id); if (article == null) return View("NotFound"); articleRepository.Delete(article); articleRepository.Save(); return View("Deleted"); } [ValidateInput(false)] public ActionResult UpdateSettings(int id, string value, string field) { // This highly-specific example is from the original coder's blog system, // but you can substitute your own code here. I assume you can pick out // which text field it is from the id. Article article = articleRepository.GetArticle(id); if (article == null) return Content("Error"); if (field == "Title") { article.Title = value; UpdateModel(article, new[] { "Title" }); articleRepository.Save(); } if (field == "Content") { article.Content = value; UpdateModel(article, new[] { "Content" }); articleRepository.Save(); } if (field == "Date") { article.Date = Convert.ToDateTime(value); UpdateModel(article, new[] { "Date" }); articleRepository.Save(); } return Content(value); } } } and view: <%@ Page Title="" Language="C#" MasterPageFile="~/Areas/CMS/Views/Shared/Site.Master" Inherits="System.Web.Mvc.ViewPage<Portal.Models.HomePageViewModel>" %> <asp:Content ID="Content1" ContentPlaceHolderID="TitleContent" runat="server"> Index </asp:Content> <asp:Content ID="Content2" ContentPlaceHolderID="MainContent" runat="server"> <div class="naslov_poglavlja_main">Articles Administration</div> <%= Html.ValidationSummary("Create was unsuccessful. Please correct the errors and try again.") %> <% using (Html.BeginForm("Create","Article")) {%> <div class="news_forma"> <label for="Title" class="news">Title:</label> <%= Html.TextBox("Title", "", new { @class = "news" })%> <%= Html.ValidationMessage("Title", "*") %> <label for="Content" class="news">Content:</label> <div class="textarea_okvir"> <%= Html.TextArea("Content", "", new { @class = "news" })%> <%= Html.ValidationMessage("Content", "*")%> </div> <label for="CategoryID" class="news">Category:</label> <%= Html.DropDownList("CategoryId", (IEnumerable<SelectListItem>)ViewData["categories"], new { @class = "news" })%> <p> <input type="submit" value="Publish" class="form_submit" /> </p> </div> <% } %> <div class="naslov_poglavlja_main"><%= Html.ActionLink("Write new article...", "Create") %></div> <div id="articles"> <% foreach (var item in Model.ArticleSummaries) { %> <div> <div class="naslov_vijesti" id="<%= item.ArticleID %>"><%= Html.Encode(item.ArticleTitle) %></div> <div class="okvir_vijesti"> <div class="sadrzaj_vijesti" id="<%= item.ArticleID %>"><%= item.ArticleContent %></div> <div class="datum_vijesti" id="<%= item.ArticleID %>"><%= Html.Encode(String.Format("{0:g}", item.ArticleDate)) %></div> <a class="news_delete" href="#" id="<%= item.ArticleID %>">Delete</a> </div> <div class="dno"></div> </div> <% } %> </div> </asp:Content> When trying to post new article I get following error: System.InvalidOperationException: The ViewData item that has the key 'CategoryId' is of type 'System.Int32' but must be of type 'IEnumerable'. I really don't know what to do cause I'm pretty new to .net and mvc Any help appreciated! Ile EDIT: I found where I made mistake. I didn't include date. If in view form I add this line I'm able to add article: <%=Html.Hidden("Date", String.Format("{0:g}", Model.NewArticle.Date)) %> But, if I enter wrong datetype or leave title and content empty then I get the same error. In this eample there is no need for date edit, but I will need it for some other forms and validation will be necessary. EDIT 2: Error happens when posting! Call stack: App_Web_of9beco9.dll!ASP.areas_cms_views_article_create_aspx.__RenderContent2(System.Web.UI.HtmlTextWriter __w = {System.Web.UI.HtmlTextWriter}, System.Web.UI.Control parameterContainer = {System.Web.UI.WebControls.ContentPlaceHolder}) Line 31 + 0x9f bytes C#

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• ObservableCollection is not updating Multibinding in C# WPF

  - by Decept

  I have a TreeView that creates all its items from databound ObservableCollections. I have a hierarchy of GameNode objects, each object has two ObservableCollections. One collections has EntityAttrib objects and the other have GameNode objects. You could say that the GameNode object represents folders and EntityAttrib represents files. To display both attrib and GameNodes in the same TreeView I use Multibinding. This all works fine in startup, but when I add a new GameNode somewhere in the hierarchy the TreeView is not updated. I set a breakpoint in my converter method but it's not called when adding a new GameNode. It seems that the ObservableCollection is not notifying the MultiBinding of the change. If I comment out the MultiBinding and only bind the GameNode collection it works as expected. XAML: <HierarchicalDataTemplate DataType="{x:Type local:GameNode}"> <HierarchicalDataTemplate.ItemsSource> <MultiBinding Converter="{StaticResource combineConverter}"> <Binding Path="Attributes" /> <Binding Path="ChildNodes" /> </MultiBinding> </HierarchicalDataTemplate.ItemsSource> <TextBlock Text="{Binding Path=Name}" ContextMenu="{StaticResource EntityCtxMenu}"/> </HierarchicalDataTemplate> C#: public class GameNode { string mName; public string Name { get { return mName; } set { mName = value; } } GameNodeList mChildNodes = new GameNodeList(); public GameNodeList ChildNodes { get { return mChildNodes; } set { mChildNodes = value; } } ObservableCollection<EntityAttrib> mAttributes = new ObservableCollection<EntityAttrib>(); public ObservableCollection<EntityAttrib> Attributes { get { return mAttributes; } set { mAttributes = value; } } } GameNodeList is a subclassed ObservableCollection

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• Visual Studio 2010 is asking to convert RDLC created on VS2008 to RDLC 2008 format?

  - by Junior Mayhé

  I've created my project on Visual Studio 2008, as well RDLC files on it. But now, when I open the solution on Visual Studio 2010 and want to open RDLC file, it's showing me a warning. That's a little funny. The report was created on VS2008 and VS2010 is asking to convert to 2008 format. Perhaps there was a problem on my VS2008 installation that created RDLC files using some ancient format (2005??!) The problem is, when you confirm with Ok button, do some design ajustments and run the app, it throws an error on 'Main report': ex.InnerException {"The definition of the report 'Main Report' is invalid."} [Microsoft.Reporting.DefinitionInvalidException]: {"The definition of the report 'Main Report' is invalid."} Data: {System.Collections.ListDictionaryInternal} HelpLink: null InnerException: {"The report definition is not valid. Details: The report definition has an invalid target namespace 'http://schemas.microsoft.com/sqlserver/reporting/2008/01/reportdefinition' which cannot be upgraded."} Message: "The definition of the report 'Main Report' is invalid." Source: "Microsoft.ReportViewer.Common" StackTrace: " at Microsoft.Reporting.ReportCompiler.CompileReport(CatalogItemContext context, Byte[] reportDefinition, Boolean generateExpressionHostWithRefusedPermissions, ReportSnapshotBase& snapshot)\r\n at Microsoft.Reporting.StandalonePreviewStore.StoredReport.CompileReport()\r\n at Microsoft.Reporting.StandalonePreviewStore.StoredReport.get_Snapshot()\r\n at Microsoft.Reporting.StandalonePreviewStore.GetCompiledReport(CatalogItemContext context, Boolean rebuild, ReportSnapshotBase& snapshot)\r\n at Microsoft.Reporting.LocalService.GetCompiledReport(CatalogItemContext itemContext, Boolean rebuild, ReportSnapshotBase& snapshot)\r\n at Microsoft.Reporting.LocalService.CompileReport(CatalogItemContext itemContext, Boolean rebuild)\r\n at Microsoft.Reporting.WinForms.LocalReport.CompileReport()" TargetSite: {Microsoft.ReportingServices.ReportProcessing.PublishingResult CompileReport(Microsoft.ReportingServices.Diagnostics.CatalogItemContext, Byte[], Boolean, Microsoft.ReportingServices.Library.ReportSnapshotBase ByRef)}

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• SignalR - No connection could be made because the target machine actively refused it?

  - by user2151460

  Trying to create a Console application that is going to send data to a website. The website is built with Codeiginter framework, if that matters. When i'm running my Console application, i get the error that a connection could not be made, and that the machine refused it. Been watching some tutorials, but most of them are using Hubs etc, which imo i do not need for this simple task?. All i want to do is to send data to the website, one way. Here is my Console application using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading.Tasks; using Microsoft.AspNet.SignalR; using Microsoft.AspNet.SignalR.Client; namespace signalrDemo { class Program { static void Main(string[] args) { var connection = new Connection("http://localhost:3000/servers/2"); connection.Received += data => Console.WriteLine(data); connection.Start().ContinueWith(task => { if (task.IsFaulted) { Console.WriteLine("Failed to start: {0}", task.Exception.GetBaseException()); } else { Console.WriteLine("Success! Connected with client connection id {0}", connection.ConnectionId); } }); Console.ReadLine(); } } } And at my website, i have this code $(function () { var connection = $.connection('http://localhost/servers/2'); connection.received(function (data) { $("message").append(data + '<br />'); }); connection.start().done(); }); Thank you.

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• Entity Framework - Condition on one to many join (Lambda)

  - by nirpi

  Hi, I have 2 entities: Customer & Account, where a customer can have multiple accounts. On the account, I have a "PlatformTypeId" field, which I need to condition on (multiple values), among other criterions. I'm using Lambda expressions, to build the query. Here's a snippet: var customerQuery = (from c in context.CustomerSet.Include("Accounts") select c); if (criterions.UserTypes != null && criterions.UserTypes.Count() > 0) { List<short> searchCriterionsUserTypes = criterions.UserTypes.Select(i => (short)i).ToList(); customerQuery = customerQuery.Where(CommonDataObjects.LinqTools.BuildContainsExpression<Customer, short>(c => c.UserTypeId, searchCriterionsUserTypes)); } // Other criterions, including the problematic platforms condition (below) var customers = customerQuery.ToList(); I can't figure out how to build the accounts' platforms condition: if (criterions.Platforms != null && criterions.Platforms.Count() > 0) { List<short> searchCriterionsPlatforms = criterions.Platforms.Select(i => (short)i).ToList(); customerQuery = customerQuery.Where(c => c.Accounts.Where(LinqTools.BuildContainsExpression<Account, short>(a => a.PlatformTypeId, searchCriterionsPlatforms))); } (The BuildContainsExpression is a method we use to build the expression for the multi-select) I'm getting a compilation error: The type arguments for method 'System.Linq.Enumerable.Where(System.Collections.Generic.IEnumerable, System.Func)' cannot be inferred from the usage. Try specifying the type arguments explicitly. Any idea how to fix this? Thanks, Nir.

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• pylucene: install error

  - by Pradeep

  I am trying to install Pylucene (pylucene-3.3-3-src.tar.gz) on my ubuntu linux 11.10. I have python 2.7.2. I was able to compile JCC (I think) because I didnt see any error when I installed it. When I tried to install Pylucene I get the following error. Can someone help? Thanks. ICU not installed /usr/bin/python -m jcc --shared --jar lucene-java-3.3/lucene/build/lucene-core-3.3.jar --jar lucene-java-3.3/lucene/build/contrib/analyzers/common/lucene-analyzers-3.3.jar --jar lucene-java-3.3/lucene/build/contrib/memory/lucene-memory-3.3.jar --jar lucene-java-3.3/lucene/build/contrib/highlighter/lucene-highlighter-3.3.jar --jar build/jar/extensions.jar --jar lucene-java-3.3/lucene/build/contrib/queries/lucene-queries-3.3.jar --jar lucene-java-3.3/lucene/build/contrib/grouping/lucene-grouping-3.3.jar --package java.lang java.lang.System java.lang.Runtime --package java.util java.util.Arrays java.util.HashMap java.util.HashSet java.text.SimpleDateFormat java.text.DecimalFormat java.text.Collator --package java.util.regex --package java.io java.io.StringReader java.io.InputStreamReader java.io.FileInputStream --exclude org.apache.lucene.queryParser.Token --exclude org.apache.lucene.queryParser.TokenMgrError --exclude org.apache.lucene.queryParser.QueryParserTokenManager --exclude org.apache.lucene.queryParser.ParseException --exclude org.apache.lucene.search.regex.JakartaRegexpCapabilities --exclude org.apache.regexp.RegexpTunnel --exclude org.apache.lucene.analysis.cn.smart.AnalyzerProfile --python lucene --mapping org.apache.lucene.document.Document 'get:(Ljava/lang/String;)Ljava/lang/String;' --mapping java.util.Properties 'getProperty:(Ljava/lang/String;)Ljava/lang/String;' --sequence java.util.AbstractList 'size:()I' 'get:(I)Ljava/lang/Object;' --rename org.apache.lucene.search.highlight.SpanScorer=HighlighterSpanScorer --version 3.3 --module python/collections.py --module python/ICUNormalizer2Filter.py --module python/ICUFoldingFilter.py --module python/ICUTransformFilter.py --files 3 --build /usr/bin/python: No module named jcc make: *** [compile] Error 1 Here is my Makefile configuration which I uncommented PREFIX_PYTHON=/usr ANT=ant PYTHON=$(PREFIX_PYTHON)/bin/python JCC=$(PYTHON) -m jcc --shared NUM_FILES=3

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• Java: immutable Stack?

  - by HH

  I chose to use Stacks and Tables before knowing Collections has immutable empty things only for Set, Map and List. Because the size of table does not change after its init: Integer[] table = new Intger[0] I can use the zero-witdh table as an empty table. But I cannot use final or empty Stack to get immutable Stack: No immutability to Stack with Final import java.io.*; import java.util.*; public class TestStack{ public static void main(String[] args) { final Stack<Integer> test = new Stack<Integer>(); Stack<Integer> test2 = new Stack<Integer>(); test.push(37707); test2.push(80437707); //WHY is there not an error to remove an elment // from FINAL stack? System.out.println(test.pop()); System.out.println(test2.pop()); } } Java Api 5 for list interface shows that Stack is an implementing class for list and arraylist, here. The java.coccurrent pkg does not have any immutable Stack data structure. From Stack to some immutable data structure How to get immutable Stack data structure? Can I box it with list? Should I switch my current implementatios from stacks to Lists to get immutable? Which immutable data structure is Very fast with about similar exec time as Stack?

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• No OpenID endpoint found

  - by azamsharp

  I am trying to use the DotNetOpenId library to add OpenID support on a test website. For some reason it keeps giving me the following error when running on FireFix. Keep in mind that I am using localhost as I am testing it on my local machine. using System; using System.Collections.Generic; using System.Linq; using System.Web; using System.Web.UI; using System.Web.UI.WebControls; using DotNetOpenAuth.OpenId.Extensions.ProviderAuthenticationPolicy; using DotNetOpenAuth.OpenId.Extensions.SimpleRegistration; using DotNetOpenAuth.OpenId.RelyingParty; namespace TableSorterDemo { public partial class Login : System.Web.UI.Page { protected void Page_Load(object sender, EventArgs e) { var openid = new OpenIdRelyingParty(); if (openid.GetResponse() != null) { switch (openid.GetResponse().Status) { case AuthenticationStatus.Authenticated: var fetch = openid.GetResponse().GetExtension(typeof(ClaimsResponse)) as ClaimsResponse; var nick = fetch.Nickname; var email = fetch.Email; break; } } } protected void OpenIdLogin1_LoggedIn(object sender, OpenIdEventArgs e) { var openid = new OpenIdRelyingParty(); if(openid.GetResponse() != null) { switch(openid.GetResponse().Status) { case AuthenticationStatus.Authenticated: var fetch = openid.GetResponse().GetExtension(typeof (ClaimsResponse)) as ClaimsResponse; var nick = fetch.Nickname; var email = fetch.Email; break; } } } protected void OpenIdLogin1_LoggingIn(object sender, OpenIdEventArgs e) { var openid = new OpenIdRelyingParty(); var req = openid.CreateRequest(OpenIdLogin1.Text); var fetch = new ClaimsRequest(); fetch.Email = DemandLevel.Require; fetch.Nickname = DemandLevel.Require; req.AddExtension(fetch); req.RedirectToProvider(); return; } } } Also, if I run the same page in Chrome then I get the following: Login failed: This message has already been processed. This could indicate a replay attack in progress.

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• NHibernate.Bytecode.UnableToLoadProxyFactoryFactoryException

  - by Shane

  I have the following code set up in my Startup IDictionary properties = new Dictionary(); properties.Add("connection.driver_class", "NHibernate.Driver.SqlClientDriver"); properties.Add("dialect", "NHibernate.Dialect.MsSql2005Dialect"); properties.Add("proxyfactory.factory_class", "NNHibernate.ByteCode.Castle.ProxyFactoryFactory, NHibernate.ByteCode.Castle"); properties.Add("connection.provider", "NHibernate.Connection.DriverConnectionProvider"); properties.Add("connection.connection_string", "Data Source=ZEUS;Initial Catalog=mydb;Persist Security Info=True;User ID=sa;Password=xxxxxxxx"); InPlaceConfigurationSource source = new InPlaceConfigurationSource(); source.Add(typeof(ActiveRecordBase), (IDictionary<string, string>) properties); Assembly asm = Assembly.Load("Repository"); Castle.ActiveRecord.ActiveRecordStarter.Initialize(asm, source); I am getting the following error: failed: NHibernate.Bytecode.UnableToLoadProxyFactoryFactoryException : Unable to load type 'NNHibernate.ByteCode.Castle.ProxyFactoryFactory, NHibernate.ByteCode.Castle' during configuration of proxy factory class. Possible causes are: - The NHibernate.Bytecode provider assembly was not deployed. - The typeName used to initialize the 'proxyfactory.factory_class' property of the session-factory section is not well formed. I have read and read I am referecning the All the assemblies listed and I am at a total loss as what to try next. Castle.ActiveRecord.dll Castle.DynamicProxy2.dll Iesi.Collections.dll log4net.dll NHibernate.dll NHibernate.ByteCode.Castle.dll I am 100% sure the assembly is in the bin. Anyone have any ideas?

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• Logging Into a site that uses Live.com authentication with C#

  - by Josh

  I've been trying to automate a log in to a website I frequent, www.bungie.net. The site is associated with Microsoft and Xbox Live, and as such makes uses of the Windows Live ID API when people log in to their site. I am relatively new to creating web spiders/robots, and I worry that I'm misunderstanding some of the most basic concepts. I've simulated logins to other sites such as Facebook and Gmail, but live.com has given me nothing but trouble. Anyways, I've been using Wireshark and the Firefox addon Tamper Data to try and figure out what I need to post, and what cookies I need to include with my requests. As far as I know these are the steps one must follow to log in to this site. 1. Visit https: //login.live.com/login.srf?wa=wsignin1.0&rpsnv=11&ct=1268167141&rver=5.5.4177.0&wp=LBI&wreply=http:%2F%2Fwww.bungie.net%2FDefault.aspx&id=42917 2. Recieve the cookies MSPRequ and MSPOK. 3. Post the values from the form ID "PPSX", the values from the form ID "PPFT", your username, your password all to a changing URL similar to: https: //login.live.com/ppsecure/post.srf?wa=wsignin1.0&rpsnv=11&ct= (there are a few numbers that change at the end of that URL) 4. Live.com returns the user a page with more hidden forms to post. The client then posts the values from the form "ANON", the value from the form "ANONExp" and the values from the form "t" to the URL: http ://www.bung ie.net/Default.aspx?wa=wsignin1.0 5. After posting that data, the user is returned a variety of cookies the most important of which is "BNGAuth" which is the log in cookie for the site. Where I am having trouble is on fifth step, but that doesn't neccesarily mean I've done all the other steps correctly. I post the data from "ANON", "ANONExp" and "t" but instead of being returned a BNGAuth cookie, I'm returned a cookie named "RSPMaybe" and redirected to the home page. When I review the Wireshark log, I noticed something that instantly stood out to me as different between the log when I logged in with Firefox and when my program ran. It could be nothing but I'll include the picture here for you to review. I'm being returned an HTTP packet from the site before I post the data in the fourth step. I'm not sure how this is happening, but it must be a side effect from something I'm doing wrong in the HTTPS steps. ![alt text][1] http://img391.imageshack.us/img391/6049/31394881.gif using System; using System.Collections.Generic; using System.Collections.Specialized; using System.Text; using System.Net; using System.IO; using System.IO.Compression; using System.Security.Cryptography; using System.Security.Cryptography.X509Certificates; using System.Web; namespace SpiderFromScratch { class Program { static void Main(string[] args) { CookieContainer cookies = new CookieContainer(); Uri url = new Uri("https://login.live.com/login.srf?wa=wsignin1.0&rpsnv=11&ct=1268167141&rver=5.5.4177.0&wp=LBI&wreply=http:%2F%2Fwww.bungie.net%2FDefault.aspx&id=42917"); HttpWebRequest http = (HttpWebRequest)HttpWebRequest.Create(url); http.Timeout = 30000; http.UserAgent = "Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.1.8) Gecko/20100202 Firefox/3.5.8 (.NET CLR 3.5.30729)"; http.Accept = "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8"; http.Headers.Add("Accept-Language", "en-us,en;q=0.5"); http.Headers.Add("Accept-Charset", "ISO-8859-1,utf-8;q=0.7,*;q=0.7"); http.Headers.Add("Keep-Alive", "300"); http.Referer = "http://www.bungie.net/"; http.ContentType = "application/x-www-form-urlencoded"; http.CookieContainer = new CookieContainer(); http.Method = WebRequestMethods.Http.Get; HttpWebResponse response = (HttpWebResponse)http.GetResponse(); StreamReader readStream = new StreamReader(response.GetResponseStream()); string HTML = readStream.ReadToEnd(); readStream.Close(); //gets the cookies (they are set in the eighth header) string[] strCookies = response.Headers.GetValues(8); response.Close(); string name, value; Cookie manualCookie; for (int i = 0; i < strCookies.Length; i++) { name = strCookies[i].Substring(0, strCookies[i].IndexOf("=")); value = strCookies[i].Substring(strCookies[i].IndexOf("=") + 1, strCookies[i].IndexOf(";") - strCookies[i].IndexOf("=") - 1); manualCookie = new Cookie(name, "\"" + value + "\""); Uri manualURL = new Uri("http://login.live.com"); http.CookieContainer.Add(manualURL, manualCookie); } //stores the cookies to be used later cookies = http.CookieContainer; //Get the PPSX value string PPSX = HTML.Remove(0, HTML.IndexOf("PPSX")); PPSX = PPSX.Remove(0, PPSX.IndexOf("value") + 7); PPSX = PPSX.Substring(0, PPSX.IndexOf("\"")); //Get this random PPFT value string PPFT = HTML.Remove(0, HTML.IndexOf("PPFT")); PPFT = PPFT.Remove(0, PPFT.IndexOf("value") + 7); PPFT = PPFT.Substring(0, PPFT.IndexOf("\"")); //Get the random URL you POST to string POSTURL = HTML.Remove(0, HTML.IndexOf("https://login.live.com/ppsecure/post.srf?wa=wsignin1.0&rpsnv=11&ct=")); POSTURL = POSTURL.Substring(0, POSTURL.IndexOf("\"")); //POST with cookies http = (HttpWebRequest)HttpWebRequest.Create(POSTURL); http.UserAgent = "Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.1.8) Gecko/20100202 Firefox/3.5.8 (.NET CLR 3.5.30729)"; http.Accept = "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8"; http.Headers.Add("Accept-Language", "en-us,en;q=0.5"); http.Headers.Add("Accept-Charset", "ISO-8859-1,utf-8;q=0.7,*;q=0.7"); http.Headers.Add("Keep-Alive", "300"); http.CookieContainer = cookies; http.Referer = "https://login.live.com/login.srf?wa=wsignin1.0&rpsnv=11&ct=1268158321&rver=5.5.4177.0&wp=LBI&wreply=http:%2F%2Fwww.bungie.net%2FDefault.aspx&id=42917"; http.ContentType = "application/x-www-form-urlencoded"; http.Method = WebRequestMethods.Http.Post; Stream ostream = http.GetRequestStream(); //used to convert strings into bytes System.Text.ASCIIEncoding encoding = new System.Text.ASCIIEncoding(); //Post information byte[] buffer = encoding.GetBytes("PPSX=" + PPSX +"&PwdPad=IfYouAreReadingThisYouHaveTooMuc&login=YOUREMAILGOESHERE&passwd=YOURWORDGOESHERE" + "&LoginOptions=2&PPFT=" + PPFT); ostream.Write(buffer, 0, buffer.Length); ostream.Close(); HttpWebResponse response2 = (HttpWebResponse)http.GetResponse(); readStream = new StreamReader(response2.GetResponseStream()); HTML = readStream.ReadToEnd(); response2.Close(); ostream.Dispose(); foreach (Cookie cookie in response2.Cookies) { Console.WriteLine(cookie.Name + ": "); Console.WriteLine(cookie.Value); Console.WriteLine(cookie.Expires); Console.WriteLine(); } //SET POSTURL value string POSTANON = "http://www.bungie.net/Default.aspx?wa=wsignin1.0"; //Get the ANON value string ANON = HTML.Remove(0, HTML.IndexOf("ANON")); ANON = ANON.Remove(0, ANON.IndexOf("value") + 7); ANON = ANON.Substring(0, ANON.IndexOf("\"")); ANON = HttpUtility.UrlEncode(ANON); //Get the ANONExp value string ANONExp = HTML.Remove(0, HTML.IndexOf("ANONExp")); ANONExp = ANONExp.Remove(0, ANONExp.IndexOf("value") + 7); ANONExp = ANONExp.Substring(0, ANONExp.IndexOf("\"")); ANONExp = HttpUtility.UrlEncode(ANONExp); //Get the t value string t = HTML.Remove(0, HTML.IndexOf("id=\"t\"")); t = t.Remove(0, t.IndexOf("value") + 7); t = t.Substring(0, t.IndexOf("\"")); t = HttpUtility.UrlEncode(t); //POST the Info and Accept the Bungie Cookies http = (HttpWebRequest)HttpWebRequest.Create(POSTANON); http.UserAgent = "Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.1.8) Gecko/20100202 Firefox/3.5.8 (.NET CLR 3.5.30729)"; http.Accept = "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8"; http.Headers.Add("Accept-Language", "en-us,en;q=0.5"); http.Headers.Add("Accept-Encoding", "gzip,deflate"); http.Headers.Add("Accept-Charset", "ISO-8859-1,utf-8;q=0.7,*;q=0.7"); http.Headers.Add("Keep-Alive", "115"); http.CookieContainer = new CookieContainer(); http.ContentType = "application/x-www-form-urlencoded"; http.Method = WebRequestMethods.Http.Post; http.Expect = null; ostream = http.GetRequestStream(); int test = ANON.Length; int test1 = ANONExp.Length; int test2 = t.Length; buffer = encoding.GetBytes("ANON=" + ANON +"&ANONExp=" + ANONExp + "&t=" + t); ostream.Write(buffer, 0, buffer.Length); ostream.Close(); //Here lies the problem, I am not returned the correct cookies. HttpWebResponse response3 = (HttpWebResponse)http.GetResponse(); GZipStream gzip = new GZipStream(response3.GetResponseStream(), CompressionMode.Decompress); readStream = new StreamReader(gzip); HTML = readStream.ReadToEnd(); //gets both cookies string[] strCookies2 = response3.Headers.GetValues(11); response3.Close(); } } } This has given me problems and I've put many hours into learning about HTTP protocols so any help would be appreciated. If there is an article detailing a similar log in to live.com feel free to point the way. I've been looking far and wide for any articles with working solutions. If I could be clearer, feel free to ask as this is my first time using Stack Overflow. Cheers, --Josh

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• How to achieve "Blendability" when using DataServiceCollection in my ViewModel

  - by andlju

  I'm looking at using oData endpoints in my Silverlight client. Naturally, I'm doing MVVM and I want the project to be nice and "Blendable" (i.e. I must be able to cleanly use static data instead of the oData endpoints when in design mode.) Now to the problem. I'd like to use the DataServiceCollection in my ViewModels, since it allows for nice bindable collections without having to worry too much with BeginExecute/EndExecute etc. Now, let's look at some code. My Model interface looks like this: public interface ITasksModel { IQueryable<Task> Tasks { get; } } The oData endpoint implementation of that interface: public class TasksModel : ITasksModel { Uri svcUri = new Uri("http://localhost:2404/Services/TasksDataService.svc"); TaskModelContainer _container; public TasksModel() { _container = new TaskModelContainer(svcUri); } public IQueryable<Task> Tasks { get { return _container.TaskSet; } } } And the "Blendable" design-time implementation: public class DesignModeTasksModel : ITasksModel { private List<Task> _taskCollection = new List<Task>(); public DesignModeTasksModel() { _taskCollection.Add(new Task() { Id = 1, Title = "Task 1" }); _taskCollection.Add(new Task() { Id = 2, Title = "Task 2" }); _taskCollection.Add(new Task() { Id = 3, Title = "Task 3" }); } public IQueryable<Task> Tasks { get { return _taskCollection.AsQueryable(); } } } However, when I try to use this last one in my ViewModel constructor: public TaskListViewModel(ITasksModel tasksModel) { _tasksModel = tasksModel; _tasks = new DataServiceCollection<Task>(); _tasks.LoadAsync(_tasksModel.Tasks); } I get an exception: Only a typed DataServiceQuery object can be supplied when calling the LoadAsync method on DataServiceCollection. First of all, if this is the case, why not make the input parameter of LoadAsync be typed as DataServiceQuery? Second, what is the "proper" way of doing what I'm trying to accomplish?

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• Why am I getting: InvalidOperationException: Failed to map the path '/app42/App_Code/'.

  - by serialhobbyist

  I've been working on a little Silverlight utility which calls a Silverlight web service. It works from my dev machine (XPsp2). I've tried publishing it to a 2008 R2 IIS 7.5 server and it doesn't work when trying to contact the web service. So I've tried using the WcfTestClient to connect to the web service. That gave an error. So I turned off CustomErrors and used IE and I get the following. Any idea why? There's no App_Code folder in the app. Failed to map the path '/app42/App_Code/'. Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. Exception Details: System.InvalidOperationException: Failed to map the path '/app42/App_Code/'. Source Error: An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below. Stack Trace: [InvalidOperationException: Failed to map the path '/app42/App_Code/'.] System.Web.Configuration.ProcessHostConfigUtils.MapPathActual(String siteName, VirtualPath path) +320 System.Web.Configuration.ProcessHostServerConfig.System.Web.Configuration.IServerConfig.MapPath(IApplicationHost appHost, VirtualPath path) +34 System.Web.Hosting.MapPathBasedVirtualPathEnumerator..ctor(VirtualPath virtualPath, RequestedEntryType requestedEntryType) +169 System.Web.Hosting.MapPathBasedVirtualPathCollection.System.Collections.IEnumerable.GetEnumerator() +43 System.Web.Compilation.CodeDirectoryCompiler.ProcessDirectoryRecursive(VirtualDirectory vdir, Boolean topLevel) +147 System.Web.Compilation.CodeDirectoryCompiler.GetCodeDirectoryAssembly(VirtualPath virtualDir, CodeDirectoryType dirType, String assemblyName, StringSet excludedSubdirectories, Boolean isDirectoryAllowed) +11196502 System.Web.Compilation.BuildManager.CompileCodeDirectory(VirtualPath virtualDir, CodeDirectoryType dirType, String assemblyName, StringSet excludedSubdirectories) +185 System.Web.Compilation.BuildManager.CompileCodeDirectories() +654 System.Web.Compilation.BuildManager.EnsureTopLevelFilesCompiled() +658 [HttpException (0x80004005): Failed to map the path '/app42/App_Code/'.] System.Web.Compilation.BuildManager.ReportTopLevelCompilationException() +76 System.Web.Compilation.BuildManager.EnsureTopLevelFilesCompiled() +1012 System.Web.Hosting.HostingEnvironment.Initialize(ApplicationManager appManager, IApplicationHost appHost, IConfigMapPathFactory configMapPathFactory, HostingEnvironmentParameters hostingParameters) +1025 [HttpException (0x80004005): Failed to map the path '/app42/App_Code/'.] System.Web.HttpRuntime.FirstRequestInit(HttpContext context) +11301302 System.Web.HttpRuntime.EnsureFirstRequestInit(HttpContext context) +88 System.Web.HttpRuntime.ProcessRequestNotificationPrivate(IIS7WorkerRequest wr, HttpContext context) +4338644 Version Information: Microsoft .NET Framework Version:2.0.50727.4927; ASP.NET Version:2.0.50727.4927

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• What is the standard convention for defining nested view:viewmodel mapping in MVVM Light

  - by firoso

  so in classic MVVM examples ive seen DataTemplate definitions are used to map up View Models to Views, what is the standard way to do this in MVVM Light framework, and where should the mappings be located? Following are examples of what I'm doing now and what I'm talking about, blendability is important to me! Main Window: <Window xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:d="http://schemas.microsoft.com/expression/blend/2008" xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" mc:Ignorable="d" x:Class="STS2Editor.MainWindow" Title="{Binding ApplicationTitle, Mode=OneWay}" DataContext="{Binding RootViewModel, Source={StaticResource Locator}}"> <Window.Resources> <ResourceDictionary> <ResourceDictionary.MergedDictionaries> <ResourceDictionary Source="Skins/ApplicationSkin.xaml" /> <ResourceDictionary Source="Resources/ViewMappings.xaml" /> </ResourceDictionary.MergedDictionaries> </ResourceDictionary> </Window.Resources> <Grid> <ContentControl Content="{Binding ApplicationManagementViewModel}" HorizontalAlignment="Left" VerticalAlignment="Top"/> </Grid> </Window> In the above code, my RootViewModel class has an instance of the class ApplicationManagementViewModel with the same property name: public ApplicationManagementViewModel ApplicationManagementViewModel {get {...} set {...} } I reference the ResourceDictionary "ViewMappings.xaml" to specify how my view model is represented as a view. <ResourceDictionary xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:local="clr-namespace:STS2Editor.ViewModel"> <DataTemplate DataType="{x:Type local:ApplicationManagementViewModel}"> <local:ApplicationManagementView/> </DataTemplate> </ResourceDictionary> should I be doing things like this using ViewModelLocator? what about collections of view models?

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• Logging Into a site that uses Live.com authentication

  - by Josh

  I've been trying to automate a log in to a website I frequent, www.bungie.net. The site is associated with Microsoft and Xbox Live, and as such makes uses of the Windows Live ID API when people log in to their site. I am relatively new to creating web spiders/robots, and I worry that I'm misunderstanding some of the most basic concepts. I've simulated logins to other sites such as Facebook and Gmail, but live.com has given me nothing but trouble. Anyways, I've been using Wireshark and the Firefox addon Tamper Data to try and figure out what I need to post, and what cookies I need to include with my requests. As far as I know these are the steps one must follow to log in to this site. 1. Visit https: //login.live.com/login.srf?wa=wsignin1.0&rpsnv=11&ct=1268167141&rver=5.5.4177.0&wp=LBI&wreply=http:%2F%2Fwww.bungie.net%2FDefault.aspx&id=42917 2. Recieve the cookies MSPRequ and MSPOK. 3. Post the values from the form ID "PPSX", the values from the form ID "PPFT", your username, your password all to a changing URL similar to: https: //login.live.com/ppsecure/post.srf?wa=wsignin1.0&rpsnv=11&ct= (there are a few numbers that change at the end of that URL) 4. Live.com returns the user a page with more hidden forms to post. The client then posts the values from the form "ANON", the value from the form "ANONExp" and the values from the form "t" to the URL: http ://www.bung ie.net/Default.aspx?wa=wsignin1.0 5. After posting that data, the user is returned a variety of cookies the most important of which is "BNGAuth" which is the log in cookie for the site. Where I am having trouble is on fifth step, but that doesn't neccesarily mean I've done all the other steps correctly. I post the data from "ANON", "ANONExp" and "t" but instead of being returned a BNGAuth cookie, I'm returned a cookie named "RSPMaybe" and redirected to the home page. When I review the Wireshark log, I noticed something that instantly stood out to me as different between the log when I logged in with Firefox and when my program ran. It could be nothing but I'll include the picture here for you to review. I'm being returned an HTTP packet from the site before I post the data in the fourth step. I'm not sure how this is happening, but it must be a side effect from something I'm doing wrong in the HTTPS steps. using System; using System.Collections.Generic; using System.Collections.Specialized; using System.Text; using System.Net; using System.IO; using System.IO.Compression; using System.Security.Cryptography; using System.Security.Cryptography.X509Certificates; using System.Web; namespace SpiderFromScratch { class Program { static void Main(string[] args) { CookieContainer cookies = new CookieContainer(); Uri url = new Uri("https://login.live.com/login.srf?wa=wsignin1.0&rpsnv=11&ct=1268167141&rver=5.5.4177.0&wp=LBI&wreply=http:%2F%2Fwww.bungie.net%2FDefault.aspx&id=42917"); HttpWebRequest http = (HttpWebRequest)HttpWebRequest.Create(url); http.Timeout = 30000; http.UserAgent = "Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.1.8) Gecko/20100202 Firefox/3.5.8 (.NET CLR 3.5.30729)"; http.Accept = "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8"; http.Headers.Add("Accept-Language", "en-us,en;q=0.5"); http.Headers.Add("Accept-Charset", "ISO-8859-1,utf-8;q=0.7,*;q=0.7"); http.Headers.Add("Keep-Alive", "300"); http.Referer = "http://www.bungie.net/"; http.ContentType = "application/x-www-form-urlencoded"; http.CookieContainer = new CookieContainer(); http.Method = WebRequestMethods.Http.Get; HttpWebResponse response = (HttpWebResponse)http.GetResponse(); StreamReader readStream = new StreamReader(response.GetResponseStream()); string HTML = readStream.ReadToEnd(); readStream.Close(); //gets the cookies (they are set in the eighth header) string[] strCookies = response.Headers.GetValues(8); response.Close(); string name, value; Cookie manualCookie; for (int i = 0; i < strCookies.Length; i++) { name = strCookies[i].Substring(0, strCookies[i].IndexOf("=")); value = strCookies[i].Substring(strCookies[i].IndexOf("=") + 1, strCookies[i].IndexOf(";") - strCookies[i].IndexOf("=") - 1); manualCookie = new Cookie(name, "\"" + value + "\""); Uri manualURL = new Uri("http://login.live.com"); http.CookieContainer.Add(manualURL, manualCookie); } //stores the cookies to be used later cookies = http.CookieContainer; //Get the PPSX value string PPSX = HTML.Remove(0, HTML.IndexOf("PPSX")); PPSX = PPSX.Remove(0, PPSX.IndexOf("value") + 7); PPSX = PPSX.Substring(0, PPSX.IndexOf("\"")); //Get this random PPFT value string PPFT = HTML.Remove(0, HTML.IndexOf("PPFT")); PPFT = PPFT.Remove(0, PPFT.IndexOf("value") + 7); PPFT = PPFT.Substring(0, PPFT.IndexOf("\"")); //Get the random URL you POST to string POSTURL = HTML.Remove(0, HTML.IndexOf("https://login.live.com/ppsecure/post.srf?wa=wsignin1.0&rpsnv=11&ct=")); POSTURL = POSTURL.Substring(0, POSTURL.IndexOf("\"")); //POST with cookies http = (HttpWebRequest)HttpWebRequest.Create(POSTURL); http.UserAgent = "Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.1.8) Gecko/20100202 Firefox/3.5.8 (.NET CLR 3.5.30729)"; http.Accept = "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8"; http.Headers.Add("Accept-Language", "en-us,en;q=0.5"); http.Headers.Add("Accept-Charset", "ISO-8859-1,utf-8;q=0.7,*;q=0.7"); http.Headers.Add("Keep-Alive", "300"); http.CookieContainer = cookies; http.Referer = "https://login.live.com/login.srf?wa=wsignin1.0&rpsnv=11&ct=1268158321&rver=5.5.4177.0&wp=LBI&wreply=http:%2F%2Fwww.bungie.net%2FDefault.aspx&id=42917"; http.ContentType = "application/x-www-form-urlencoded"; http.Method = WebRequestMethods.Http.Post; Stream ostream = http.GetRequestStream(); //used to convert strings into bytes System.Text.ASCIIEncoding encoding = new System.Text.ASCIIEncoding(); //Post information byte[] buffer = encoding.GetBytes("PPSX=" + PPSX +"&PwdPad=IfYouAreReadingThisYouHaveTooMuc&login=YOUREMAILGOESHERE&passwd=YOURWORDGOESHERE" + "&LoginOptions=2&PPFT=" + PPFT); ostream.Write(buffer, 0, buffer.Length); ostream.Close(); HttpWebResponse response2 = (HttpWebResponse)http.GetResponse(); readStream = new StreamReader(response2.GetResponseStream()); HTML = readStream.ReadToEnd(); response2.Close(); ostream.Dispose(); foreach (Cookie cookie in response2.Cookies) { Console.WriteLine(cookie.Name + ": "); Console.WriteLine(cookie.Value); Console.WriteLine(cookie.Expires); Console.WriteLine(); } //SET POSTURL value string POSTANON = "http://www.bungie.net/Default.aspx?wa=wsignin1.0"; //Get the ANON value string ANON = HTML.Remove(0, HTML.IndexOf("ANON")); ANON = ANON.Remove(0, ANON.IndexOf("value") + 7); ANON = ANON.Substring(0, ANON.IndexOf("\"")); ANON = HttpUtility.UrlEncode(ANON); //Get the ANONExp value string ANONExp = HTML.Remove(0, HTML.IndexOf("ANONExp")); ANONExp = ANONExp.Remove(0, ANONExp.IndexOf("value") + 7); ANONExp = ANONExp.Substring(0, ANONExp.IndexOf("\"")); ANONExp = HttpUtility.UrlEncode(ANONExp); //Get the t value string t = HTML.Remove(0, HTML.IndexOf("id=\"t\"")); t = t.Remove(0, t.IndexOf("value") + 7); t = t.Substring(0, t.IndexOf("\"")); t = HttpUtility.UrlEncode(t); //POST the Info and Accept the Bungie Cookies http = (HttpWebRequest)HttpWebRequest.Create(POSTANON); http.UserAgent = "Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.1.8) Gecko/20100202 Firefox/3.5.8 (.NET CLR 3.5.30729)"; http.Accept = "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8"; http.Headers.Add("Accept-Language", "en-us,en;q=0.5"); http.Headers.Add("Accept-Encoding", "gzip,deflate"); http.Headers.Add("Accept-Charset", "ISO-8859-1,utf-8;q=0.7,*;q=0.7"); http.Headers.Add("Keep-Alive", "115"); http.CookieContainer = new CookieContainer(); http.ContentType = "application/x-www-form-urlencoded"; http.Method = WebRequestMethods.Http.Post; http.Expect = null; ostream = http.GetRequestStream(); int test = ANON.Length; int test1 = ANONExp.Length; int test2 = t.Length; buffer = encoding.GetBytes("ANON=" + ANON +"&ANONExp=" + ANONExp + "&t=" + t); ostream.Write(buffer, 0, buffer.Length); ostream.Close(); //Here lies the problem, I am not returned the correct cookies. HttpWebResponse response3 = (HttpWebResponse)http.GetResponse(); GZipStream gzip = new GZipStream(response3.GetResponseStream(), CompressionMode.Decompress); readStream = new StreamReader(gzip); HTML = readStream.ReadToEnd(); //gets both cookies string[] strCookies2 = response3.Headers.GetValues(11); response3.Close(); } } } This has given me problems and I've put many hours into learning about HTTP protocols so any help would be appreciated. If there is an article detailing a similar log in to live.com feel free to point the way. I've been looking far and wide for any articles with working solutions. If I could be clearer, feel free to ask as this is my first time using Stack Overflow.

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• Argument exception after trying to use TryGetObjectByKey

  - by Rickjaah

  Hi, EDIT: Somethings wrong.... I have to use objectContext.Frontpages.ToArray() before I can use TryGetObjectByEntityKey(). Any ideas anyone? I'm trying to retrieve an object from my database using entity (framework 4) When I use the following code it gives an ArgumentException: An item with the same key has already been added. if (databaseContext.TryGetObjectByKey(entityKey, out result)) { return (result != null && result is TEntityObject) ? result as TEntityObject : null; } else { return null; } When I check the objectContext, I see the entities, but only if I enumerate the specific list of entities manually using VS2010, it works. What am I missing? Do I have to do something else before i can get the item from the database? I searched google, but could not find any results, the same for the msdn library EDIT: Still working on this.... It's a weird problem. I retrieve a value, but get an error that says a duplicate item exists. STACKTRACE: [ArgumentException: An item with the same key has already been added.] System.ThrowHelper.ThrowArgumentException(ExceptionResource resource) +52 System.Collections.Generic.Dictionary2.Insert(TKey key, TValue value, Boolean add) +9549131 System.Data.Metadata.Edm.ObjectItemAttributeAssemblyLoader.LoadRelationshipTypes() +661 System.Data.Metadata.Edm.ObjectItemAttributeAssemblyLoader.LoadTypesFromAssembly() +17 System.Data.Metadata.Edm.ObjectItemAssemblyLoader.Load() +25 System.Data.Metadata.Edm.ObjectItemAttributeAssemblyLoader.Load() +4 System.Data.Metadata.Edm.AssemblyCache.LoadAssembly(Assembly assembly, Boolean loadReferencedAssemblies, ObjectItemLoadingSessionData loadingData) +160 System.Data.Metadata.Edm.AssemblyCache.LoadAssembly(Assembly assembly, Boolean loadReferencedAssemblies, KnownAssembliesSet knownAssemblies, EdmItemCollection edmItemCollection, Action1 logLoadMessage, Object& loaderCookie, Dictionary2& typesInLoading, List1& errors) +166 System.Data.Metadata.Edm.ObjectItemCollection.LoadAssemblyFromCache(ObjectItemCollection objectItemCollection, Assembly assembly, Boolean loadReferencedAssemblies, EdmItemCollection edmItemCollection, Action`1 logLoadMessage) +316 System.Data.Metadata.Edm.MetadataWorkspace.ImplicitLoadAssemblyForType(Type type, Assembly callingAssembly) +306 System.Data.Metadata.Edm.MetadataWorkspace.ImplicitLoadFromEntityType(EntityType type, Assembly callingAssembly) +109 System.Data.Objects.ObjectContext.TryGetObjectByKey(EntityKey key, Object& value) +288 EDIT: Lazy loading is set to true. EDIT: Somethings wrong.... I have to use objectContext.Frontpages.ToArray() before I can use TryGetObjectByEntityKey(). Any ideas anyone?

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• Unit Testing in Entity Framework 4 - using CreateSourceQuery

  - by Adam

  There are many great tutorials on abstracting your EF4 context so that it can be tested against (without involving a DB). Two great (and similar) examples are here: http://blogs.msdn.com/b/adonet/archive/2009/12/17/walkthrough-test-driven-development-with-the-entity-framework-4-0.aspx (oops, not enough rep. points to post second URL) basically you wind up querying your repository using linq-to-objects while testing, and linq-to-entities while running, and usually they behave the same, but when you start hitting more advanced functionality, problems arise. Here's the question. When using linq-to-objects against IObjectSet (ie, unit testing), CreateSourceQuery returns null, which will probably cause your entire query to crash and burn. ie O = db.Orders.First(); O.OrderItems.CreateSourceQuery().ToList(); Is there a way to get CreateSourceQuery to just return the underlying collection, rather than null when working with collections? Unfortunately EntityCollection is sealed, and so cannot be mocked. This isn't really the end or the world if EF4 won't let you abstract things to this level, I just wanted to make sure there wasn't something I was missing.

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• Null Reference getting REMOTE_ADDR

  - by Josh

  I have an ASMX web service running under IIS7 in classic mode. This service has the following code: try { env.ExternalIP = HttpContext.Current.Request.ServerVariables["REMOTE_ADDR"]; } catch (Exception ex) { LogWriter.WriteError(ex); env.ExternalIP="000.000.000.000"; } This results in the following stack trace. I only modified the names of usercode call stack here to protect the innocent: Message: An Exception of type: NullReferenceException occured in method: GetAdditionalServerVar ExceptionMsg: Object reference not set to an instance of an object. ===Stack Trace=== at System.Web.Hosting.ISAPIWorkerRequestInProc.GetAdditionalServerVar(Int32 index) at System.Web.Hosting.ISAPIWorkerRequestInProc.GetServerVariable(String name) at System.Web.HttpRequest.AddServerVariableToCollection(String name) at System.Web.HttpRequest.FillInServerVariablesCollection() at System.Web.HttpServerVarsCollection.Populate() at System.Web.HttpServerVarsCollection.Get(String name) at System.Collections.Specialized.NameValueCollection.get_Item(String name) at MyService.MyMethod() I'm at a loss here as this is very basic plain vanilla code. EDIT This gets even stranger. I have added some basic code just wondering what server variables I can get at this point. This fails with the same exception when I try and get all the keys: System.NullReferenceException: Object reference not set to an instance of an object. at System.Web.Hosting.ISAPIWorkerRequestInProc.GetAdditionalServerVar(Int32 index) at System.Web.Hosting.ISAPIWorkerRequestInProc.GetServerVariable(String name) at System.Web.HttpRequest.AddServerVariableToCollection(String name) at System.Web.HttpRequest.FillInServerVariablesCollection() at System.Web.HttpServerVarsCollection.Populate() at System.Web.HttpServerVarsCollection.get_AllKeys() at MyService.MyHelper() When I was looking at the framework code looks like this could happen when the array which caches the server variables isn't populated and it looks like this occurs when there a null pointer to some Context...which seems like a fairly core piece of the framework code. I suppose it's time to burn up one of our support tickets with Microsoft.

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• How can I create a generaic ValidationAttribute in C#?

  - by sabbour

  I'm trying to create a UniqueAttribute using the System.ComponentModel.DataAnnotations.ValidationAttribute I want this to be generic as in I could pass the Linq DataContext, the table name, the field and validate if the incoming value is unique or not. Here is a non-compilable code fragment that I'm stuck at right now: using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.ComponentModel.DataAnnotations; using System.Data.Linq; using System.ComponentModel; namespace LinkDev.Innovation.Miscellaneous.Validation.Attributes { public class UniqueAttribute : ValidationAttribute { public string Field { get; set; } public override bool IsValid(object value) { string str = (string)value; if (String.IsNullOrEmpty(str)) return true; // this is where I'm stuck return (!Table.Where(entity => entity.Field.Equals(str)).Any()); } } } I should be using this in my model as follows: [Required] [StringLength(10)] [Unique(new DataContext(),"Groups","name")] public string name { get; set; }

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• C# Web Reference and PHP

  - by Louis

  I am attempting to call a Web Service (created in PHP) from my C# application. I have successfully added the Web Reference in Visual Studios, however I cannot figure out exactly how to invoke the call to the web service. I have been following this tutorial: http://sanity-free.org/article25.html however when I try and compile I get a "The type or namespace name 'SimpleService' could not be found". My C# code is as follows: using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Text; using System.Windows.Forms; using System.IO; namespace inVision_OCR { public partial class Form1 : Form { public Form1() { InitializeComponent(); } private void translateButton_Click(object sender, EventArgs e) { // We need to snap the image here somehow . . . // Open up the image and read its contents into a string FileStream file = new FileStream("\\Hard Disk\\ocr_images\\test.jpg", FileMode.Open); StreamReader sr = new StreamReader(file); string s = sr.ReadToEnd(); sr.Close(); // Using SOAP, pass this message to our development server SimpleService svc = new SimpleService(); string s1 = svc.getOCR("test"); MessageBox.Show(s); } } } Any help would be appreciated.

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• IComparer using Lambda Expression

  - by josephj1989

  class p { public string Name { get; set; } public int Age { get; set; } }; static List<p> ll = new List<p> { new p{Name="Jabc",Age=53},new p{Name="Mdef",Age=20}, new p{Name="Exab",Age=45},new p{Name="G123",Age=19} }; protected static void SortList() { IComparer<p> mycomp = (x, y) => x.Name.CompareTo(y.Name); <==(Line 1) ll.Sort((x, y) => x.Name.CompareTo(y.Name));<==(Line 2) } Here the List.sort expects an IComparer<p> as a parameter. And it works with the lambda as shown in Line 2. But when I try to do as in Line 1, I get an error: Cannot convert lambda expression to type System.Collections.Generic.IComparer' because it is not a delegate type I investigated this for quite some time but I still don't understand it. Maybe my understanding of IComparer is not quite good.

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• Connecting to Oracle 10g from .NET

  - by Xinus

  I am trying to connect to oracle server located at some IP address but always get error as System.TypeInitializationException: The type initializer for 'Oracle.DataAccess.Client.OracleConnection' threw an exception. --- Oracle.DataAccess.Client.OracleException The provider is not compatible with the version of Oracle client at Oracle.DataAccess.Client.OracleInit.Initialize() at Oracle.DataAccess.Client.OracleConnection..cctor() --- End of inner exception stack trace --- at Oracle.DataAccess.Client.OracleConnection..ctor(String connectionString) at WebApplication1._Default.Page_Load(Object sender, EventArgs e) in C:\Users\Sunil\Documents\Visual Studio 2008\Projects\WebApplication1\WebApplication1\Default.aspx.cs:line 26 Here is a test file using System; using System.Collections; using System.Configuration; using System.Data; using System.Linq; using System.Web; using System.Web.Security; using System.Web.UI; using System.Web.UI.HtmlControls; using System.Web.UI.WebControls; using System.Web.UI.WebControls.WebParts; using System.Xml.Linq; using Oracle.DataAccess.Client; namespace WebApplication1 { public partial class _Default : System.Web.UI.Page { protected void Page_Load(object sender, EventArgs e) { try { string oradb = "Data Source=(DESCRIPTION=(ADDRESS_LIST=" + "(ADDRESS=(PROTOCOL=TCP)(HOST=192.168.1.11)(PORT=1523)))" + "(CONNECT_DATA=(SERVER=DEDICATED)(SERVICE_NAME=ORCL)));" + "User Id=<user id>;Password=<some password>;"; OracleConnection conn = new OracleConnection(oradb); // C# conn.Open(); } catch (Exception ex){ Label1.Text = ex.ToString(); } } } } I have installed 10gR2 client and oracle 10gR2 provider for ASP.NET. Am I missing anything ?

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