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  • NSURL Connection will/won't load data

    - by jkap
    So here's my issue: I followed the NSURLConnection tutorial in the iPhone Developer Documentation almost to the T, and it only kinda works. Here's where it all goes wrong: The object seems to be created correctly and delegates to connectionDidFinishLoading, but with any URL I try to load the response data always ends up only being 0 bytes. I am running in the simulator if that makes any difference. Here's my relevant code: - (void)viewDidLoad { [super viewDidLoad]; self.title = @"WVFS Player"; //create a request NSURLRequest *theRequest = [NSURLRequest requestWithURL:[NSURL URLWithString:@"http://wvfs.josh-kaplan.com/nowPlaying.php"] cachePolicy:NSURLRequestUseProtocolCachePolicy timeoutInterval:60.0]; // create a connection NSURLConnection *theConnection=[[NSURLConnection alloc] initWithRequest:theRequest delegate:self]; if(theConnection) { // create the datum responseData=[[NSMutableData data] retain]; } else { // code this later } } - (void)connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse *)response { [responseData setLength:0]; } - (void)connectionDidFinishLoading:(NSURLConnection *)connection { // make it work NSLog(@"Succeeded! Received %d bytes of data:",[responseData length]); // release it [connection release]; [responseData release]; } And here's my log output: [Session started at 2010-03-14 09:01:09 -0400.] 2010-03-14 09:01:14.784 WVFS[19571:207] Succeeded! Received 0 bytes of data: Any ideas? Thanks, Josh

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  • Indy Write Buffering / Efficient TCP communication

    - by Smasher
    I know, I'm asking a lot of questions...but as a new delphi developer I keep falling over all these questions :) This one deals with TCP communication using indy 10. To make communication efficient, I code a client operation request as a single byte (in most scenarios followed by other data bytes of course, but in this case only one single byte). Problem is that var Bytes : TBytes; ... SetLength (Bytes, 1); Bytes [0] := OpCode; FConnection.IOHandler.Write (Bytes, 1); ErrorCode := Connection.IOHandler.ReadByte; does not send that byte immediately (at least the servers execute handler is not invoked). If I change the '1' to a '9' for example everything works fine. I assumed that Indy buffers the outgoing bytes and tried to disable write buffering with FConnection.IOHandler.WriteBufferClose; but it did not help. How can I send a single byte and make sure that it is immediatly sent? And - I add another little question here - what is the best way to send an integer using indy? Unfortunately I can't find function like WriteInteger in the IOHandler of TIdTCPServer...and WriteLn (IntToStr (SomeIntVal)) seems not very efficient to me. Does it make a difference whether I use multiple write commands in a row or pack things together in a byte array and send that once? Thanks for any answers! EDIT: I added a hint that I'm using Indy 10 since there seem to be major changes concerning the read and write procedures.

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  • onmouseover with django / imagekit

    - by Michael Moreno
    I'm using Imagekit. View.py includes: def pics(request): p = Photo.objects.all() return render_to_response('Shots.html', {'p': p}) The following simple code in the template will generate associated images: {% for p in p %} <img src = "{{ p.display.url }}"> <img src = "{{ p.thumbnail_image.url }}"> {% endfor %} I'm attempting to generate a series of thumbnails {{ p.thumbnail_image.url }} which, when mouseover'd, will generate the slightly larger version of the image, {{ p.display.url }} via Javascript. The following code in the template attempts to do so: <html> <head> <HEAD> <script language="Javascript"> { image1 = new Image image2 = new Image image1.src = {{ p.thumbnail_image.url }} image2.src = {{ p.display.url }} </script> </head> <body> {% for p in p %} <a href="" onMouseOver="document.rollover.src= image2.src onMouseOut="document.rollover.src= image1.src"> <img src="{{ p.thumbnail_image.url }}" border=0 name="rollover"></a> {% endfor %} </body> </html> This will display the series of thumbnails, but the larger image will not display when mouseover'd. I believe it has to do with how I'm specifying the variable {{ p.display.url }}.

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  • SQL 2000 (MSDE) Hangs When It Receives an Erroneous Query from a Classic ASP Web Application

    - by Jimbo
    I have a SQL interface page in my classic ASP web app that allows admin users to run queries against the app's database (MSDE 2000) - it simply consists of a textarea that the user submits and the app returns the resulting list of records as below Dim oRS Set oRS = Server.CreateObject("ADODB.Recordset") oRS.ActiveConnection = sConnectionString // run the query - this is for the admin only so doesnt check for sql safe commands etc. oRS.Open Request.Form("txtSQL") If Not oRS.EOF Then // list the field names from the recordset For i = 0 to oRS.Fields.Count - 1 Response.Write oRS.Fields(i).name & "&nbsp;" Next // show the data for each record in the recordset While Not oRS.EOF For i = 0 to oRS.Fields.Count - 1 Response.Write oRS.Fields(i).value & "&nbsp;" Next Response.Write "<br />" oRS.Movenext() Wend End If The problem with this is that if you send it an invalid query (with a spelling mistake, invalid join etc.) instead of throwing back an error immediately, it hangs IIS (you can see this by trying to browse the app from another computer, it fails) for a number of minutes and THEN returns the error. I have NO idea why! Can anyone help?

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  • IIS8 Asp.net State service remote connection failure

    - by maxisam
    Recently we upgrade our web server to windows server 2012 with IIS8. We have this issue when users try to connect the asp.net state service to this web server remotely. It always popup Unable to make the session state request to the session state server. Please ensure that the ASP.NET State service is started and that the client and server ports are the same. If the server is on a remote machine, please ensure that it accepts remote requests by checking the value of HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\aspnet_state\Parameters\AllowRemoteConnection. If the server is on the local machine, and if the before mentioned registry value does not exist or is set to 0, then the state server connection string must use either 'localhost' or '127.0.0.1' as the server name. In IIS7 / 7.5 we use the same way and it works fine. As long as the state service is running and firewall is set properly, we don't have any problem. However, in IIS8 it doesn't work. (We even turn off firewall to test it) Thanks for helping.

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  • Complex data types in WCF?

    - by Hojou
    I've run into a problem trying to return an object that holds a collection of childobjects that again can hold a collection of grandchild objects. I get an error, 'connection forcibly closed by host'. Is there any way to make this work? I currently have a structure resembling this: pseudo code: Person: IEnumerable<Order> Order: IEnumberable<OrderLine> All three objects have the DataContract attribute and all public properties i want exposed (including the IEnumerable's) have the DataMember attribute. I have multiple OperationContract's on my service and all the methods returning a single object OR an IEnumerable of an object works perfectly. It's only when i try to nest IEnumerable that it turns bad. Also in my client service reference i picked the generic list as my collection type. I just want to emphasize, only one of my operations/methods fail with this error - the rest of them work perfectly. EDIT (more detailed error description): [SocketException (0x2746): An existing connection was forcibly closed by the remote host] [IOException: Unable to read data from the transport connection: An existing connection was forcibly closed by the remote host.] [WebException: The underlying connection was closed: An unexpected error occurred on a receive.] [CommunicationException: An error occurred while receiving the HTTP response to http://myservice.mydomain.dk/MyService.svc. This could be due to the service endpoint binding not using the HTTP protocol. This could also be due to an HTTP request context being aborted by the server (possibly due to the service shutting down). See server logs for more details.] I tried looking for logs but i can't find any... also i'm using a WSHttpBinding and an http endpoint.

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  • asp.net mvc custom model binder

    - by mike
    pleas help guys, my custom model binder which has been working perfectly has starting giving me errors details below An item with the same key has already been added. 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.ArgumentException: An item with the same key has already been added. Source Error: Line 31: { Line 32: string key = bindingContext.ModelName; Line 33: var doc = base.BindModel(controllerContext, bindingContext) as Document; Line 34: Line 35: // DoBasicValidation(bindingContext, doc); Source File: C:\Users\Bich Vu\Documents\Visual Studio 2008\Projects\PitchPortal\PitchPortal.Web\Binders\DocumentModelBinder.cs Line: 33 Stack Trace: [ArgumentException: An item with the same key has already been added.] System.ThrowHelper.ThrowArgumentException(ExceptionResource resource) +51 System.Collections.Generic.Dictionary2.Insert(TKey key, TValue value, Boolean add) +7462172 System.Linq.Enumerable.ToDictionary(IEnumerable1 source, Func2 keySelector, Func2 elementSelector, IEqualityComparer1 comparer) +270 System.Linq.Enumerable.ToDictionary(IEnumerable1 source, Func2 keySelector, IEqualityComparer1 comparer) +102 System.Web.Mvc.ModelBindingContext.get_PropertyMetadata() +157 System.Web.Mvc.DefaultModelBinder.BindProperty(ControllerContext controllerContext, ModelBindingContext bindingContext, PropertyDescriptor propertyDescriptor) +158 System.Web.Mvc.DefaultModelBinder.BindProperties(ControllerContext controllerContext, ModelBindingContext bindingContext) +90 System.Web.Mvc.DefaultModelBinder.BindComplexElementalModel(ControllerContext controllerContext, ModelBindingContext bindingContext, Object model) +50 System.Web.Mvc.DefaultModelBinder.BindComplexModel(ControllerContext controllerContext, ModelBindingContext bindingContext) +1048 System.Web.Mvc.DefaultModelBinder.BindModel(ControllerContext controllerContext, ModelBindingContext bindingContext) +280 PitchPortal.Web.Binders.documentModelBinder.BindModel(ControllerContext controllerContext, ModelBindingContext bindingContext) in C:\Users\Bich Vu\Documents\Visual Studio 2008\Projects\PitchPortal\PitchPortal.Web\Binders\DocumentModelBinder.cs:33 System.Web.Mvc.ControllerActionInvoker.GetParameterValue(ControllerContext controllerContext, ParameterDescriptor parameterDescriptor) +257 System.Web.Mvc.ControllerActionInvoker.GetParameterValues(ControllerContext controllerContext, ActionDescriptor actionDescriptor) +109 System.Web.Mvc.ControllerActionInvoker.InvokeAction(ControllerContext controllerContext, String actionName) +314 System.Web.Mvc.Controller.ExecuteCore() +105 System.Web.Mvc.ControllerBase.Execute(RequestContext requestContext) +39 System.Web.Mvc.ControllerBase.System.Web.Mvc.IController.Execute(RequestContext requestContext) +7 System.Web.Mvc.<c_DisplayClass8.b_4() +34 System.Web.Mvc.Async.<c_DisplayClass1.b_0() +21 System.Web.Mvc.Async.<c__DisplayClass81.<BeginSynchronous>b__7(IAsyncResult _) +12 System.Web.Mvc.Async.WrappedAsyncResult1.End() +59 System.Web.Mvc.MvcHandler.EndProcessRequest(IAsyncResult asyncResult) +44 System.Web.Mvc.MvcHandler.System.Web.IHttpAsyncHandler.EndProcessRequest(IAsyncResult result) +7 System.Web.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +8677678 System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +155 any ideas guys? Thanks

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  • Using ThreadPool.QueueUserWorkItem in ASP.NET in a high traffic scenario

    - by Michael Hart
    I've always been under the impression that using the ThreadPool for (let's say non-critical) short-lived background tasks was considered best practice, even in ASP.NET, but then I came across this article that seems to suggest otherwise - the argument being that you should leave the ThreadPool to deal with ASP.NET related requests. So here's how I've been doing small asynchronous tasks so far: ThreadPool.QueueUserWorkItem(s => PostLog(logEvent)) And the article is suggesting instead to create a thread explicitly, similar to: new Thread(() => PostLog(logEvent)){ IsBackground = true }.Start() The first method has the advantage of being managed and bounded, but there's the potential (if the article is correct) that the background tasks are then vying for threads with ASP.NET request-handlers. The second method frees up the ThreadPool, but at the cost of being unbounded and thus potentially using up too many resources. So my question is, is the advice in the article correct? If your site was getting so much traffic that your ThreadPool was getting full, then is it better to go out-of-band, or would a full ThreadPool imply that you're getting to the limit of your resources anyway, in which case you shouldn't be trying to start your own threads? Clarification: I'm just asking in the scope of small non-critical asynchronous tasks (eg, remote logging), not expensive work items that would require a separate process (in these cases I agree you'll need a more robust solution).

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  • HttpURLConnection: What is the minimum best-practice implementation?

    - by stormin986
    I've come across a lot of HttpURLConnection examples that are nothing more than openConnection(), getInputStream(), and then they just read the buffer and are done. It's simple but seems like it's not the best implementation ... it handles no problems. I don't yet know much about http, so I keep thinking I have everything covered until a new problem arises. I'm currently experiencing a similar problem to this one. Most times I try to read the same resource a second time (from a different HttpURLConnection object, after I .disconnect()'ed the previous one), the response code returns as -1 (but no exception is thrown!!). Before I knew to check the response code, I was baffled since I was throwing no exceptions. So, is there a minimum 'best practice' HttpURLConnection implementation? What are notable exceptions to handle? Request code checking? Any other error checks? What connection parameters do and don't need to be set (like doInput / doOutput, are these even necessary? Some examples have em, some don't). Etc. I realize this is kind of a broad question but I think it has potential to be a very useful resource if many of the common use cases and FAQs are addressed in one central place. This seems like the kind of thing a community wiki would be good for...

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  • How to set up Hierarchical Zend Rest Routes?

    - by Kenji Baheux
    With the Zend Framework, I am trying to build routes for a REST api on resources organized in the following pattern: http://example.org/users/ http://example.org/users/234 http://example.org/users/234/items http://example.org/users/234/items/34 How do I set up this with Zend_Rest_Route? Here is how I have setup the route for the users resource (users/:id) in my bootstrap.php file: $this->bootstrap('frontController'); $frontController = Zend_Controller_Front::getInstance(); $restRoute = new Zend_Rest_Route($frontController); $frontController->getRouter()->addRoute('default', $restRoute); [As far as I understand, this is a catch all route so users/324/items/34 would results in parameters set as id=324 and items=34 and everything would be mapped to the Users (front module) Model. From there I guess I could just test for the items parameter and retrieve the item #34 for user #324 on a get request.]<=== I just checked it and it doesn't seems to work like that: Acessing /users/234/items/43 and var_dump($this->_getAllParams()); in the get action of the rest controller results in the following output: array(4) { ["controller"]=> string(5) "users" ["action"]=> string(3) "get" [2]=> string(5) "items" ["module"]=> string(7) "default"] } Somehow both ids got lost... Anyone?

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  • How to Select Items in Dropdown in Selenium

    - by Marcus Gladir
    Firstly, I have been trying to get the dropdown from this web page: http://solutions.3m.com/wps/portal/3M/en_US/Interconnect/Home/Products/ProductCatalog/Catalog/?PC_Z7_RJH9U5230O73D0ISNF9B3C3SI1000000_nid=RFCNF5FK7WitWK7G49LP38glNZJXPCDXLDbl This is the code I have: import urllib2 from bs4 import BeautifulSoup import re from pprint import pprint import sys from selenium import common from selenium import webdriver import selenium.webdriver.support.ui as ui from boto.s3.key import Key import requests url = 'http://solutions.3m.com/wps/portal/3M/en_US/Interconnect/Home/Products/ProductCatalog/Catalog/?PC_Z7_RJH9U5230O73D0ISNF9B3C3SI1000000_nid=RFCNF5FK7WitWK7G49LP38glNZJXPCDXLDbl' element_xpath = '//*[@id="Component1"]' driver = webdriver.PhantomJS() driver.get(url) element = driver.find_element_by_xpath(element_xpath) element_xpath = '/option[@value="02"]' all_options = element.find_elements_by_tag_name("option") for option in all_options: print("Value is: %s" % option.get_attribute("value")) option.click() source = driver.page_source.encode('utf-8', 'ignore') driver.quit() source = str(source) soup = BeautifulSoup(source, 'html.parser') print soup What prints out is this: Traceback (most recent call last): File "../../../../test.py", line 58, in <module> Value is: XX main() File "../../../../test.py", line 46, in main option.click() File "/home/eric/dev/octocrawler-env/local/lib/python2.7/site-packages/selenium-2.33.0-py2.7.egg/selenium/webdriver/remote/webelement.py", line 54, in click self._execute(Command.CLICK_ELEMENT) File "/home/eric/dev/octocrawler-env/local/lib/python2.7/site-packages/selenium-2.33.0-py2.7.egg/selenium/webdriver/remote/webelement.py", line 228, in _execute return self._parent.execute(command, params) File "/home/eric/dev/octocrawler-env/local/lib/python2.7/site-packages/selenium-2.33.0-py2.7.egg/selenium/webdriver/remote/webdriver.py", line 165, in execute self.error_handler.check_response(response) File "/home/eric/dev/octocrawler-env/local/lib/python2.7/site-packages/selenium-2.33.0-py2.7.egg/selenium/webdriver/remote/errorhandler.py", line 158, in check_response raise exception_class(message, screen, stacktrace) selenium.common.exceptions.ElementNotVisibleException: Message: u'{"errorMessage":"Element is not currently visible and may not be manipulated","request":{"headers":{"Accept":"application/json","Accept-Encoding":"identity","Connection":"close","Content-Length":"81","Content-Type":"application/json;charset=UTF-8","Host":"127.0.0.1:51413","User-Agent":"Python-urllib/2.7"},"httpVersion":"1.1","method":"POST","post":"{\\"sessionId\\": \\"30e4fd50-f0e4-11e3-8685-6983e831d856\\", \\"id\\": \\":wdc:1402434863875\\"}","url":"/click","urlParsed":{"anchor":"","query":"","file":"click","directory":"/","path":"/click","relative":"/click","port":"","host":"","password":"","user":"","userInfo":"","authority":"","protocol":"","source":"/click","queryKey":{},"chunks":["click"]},"urlOriginal":"/session/30e4fd50-f0e4-11e3-8685-6983e831d856/element/%3Awdc%3A1402434863875/click"}}' ; Screenshot: available via screen And the weirdest most infuriating bit of it all is that sometimes it actually all works out. I have no clue what's going on here.

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  • 'System.Web.UI.Control.Controls' is a 'property' but is used like a 'type'

    - by senzacionale
    What i am doing wrong? I extend LinkButton and i get this error Compilation Error Description: An error occurred during the compilation of a resource required to service this request. Please review the following specific error details and modify your source code appropriately. Compiler Error Message: CS0118: 'System.Web.UI.Control.Controls' is a 'property' but is used like a 'type' Source Error: Line 1084: Line 1085: public void @_DataBinding_control30(object sender, System.EventArgs e) { Line 1086: ConfirmButton.Controls.ConfirmLinkButton dataBindingExpressionBuilderTarget; Line 1087: System.Web.UI.IDataItemContainer Container; Line 1088: dataBindingExpressionBuilderTarget = ((ConfirmButton.Controls.ConfirmLinkButton)(sender)); This is C# code: [Localizable(true)] public string Message { get { return ViewState["Message"] as string; } set { ViewState["Message"] = value; } } #region Overriden protected override void OnPreRender(EventArgs e) { if (!String.IsNullOrEmpty(Message)) { WebControlUtils.SetConfirmationMessage(Page, typeof (Page), this, Message, Page.IsAsyncPostBack(), CausesValidation); } base.OnPreRender(e); } #endregion ASPX CODE: <asp:TemplateField> <ItemTemplate> <asp:ConfirmLinkButton ID="lnkBtnDelete" runat="server" Text="Odstrani" Message="Delete?" CommandName="DeleteAgencie" Width="50" CommandArgument='<%# Eval("idAgencies") %>' OnCommand="lnkBtnDelete_Command" CausesValidation="False"></asp:ConfirmLinkButton> </ItemTemplate> </asp:TemplateField> Regards

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  • InvalidAuthenticityToken for JQuery despite setting authenticity token

    - by user117046
    I'm getting an InvalidAuthenticityToken despite adding in corresponding authenticity tokens in the jquery response. Is there an error in the code, or is there another, root problem? I appreciate any comments. Thanks! Using: Rails 2.3.3, Ruby 1.8.6, Webrick, JQuery 1.3.2 layout/networks.html.haml = token_tag = javascript_tag "window.AUTH_TOKEN = '#{form_authenticity_token}';" javascripts/application.js $(document).ready(function() { // All non-GET requests will add the authenticity token // if not already present in the data packet $(document).ajaxSend(function(event, request, settings) { if (typeof(window.AUTH_TOKEN) == "undefined") return; // <acronym title="Internet Explorer 6">IE6</acronym> fix for http://dev.jquery.com/ticket/3155 if (settings.type == 'GET' || settings.type == 'get') return; settings.data = settings.data || ""; settings.data += (settings.data ? "&" : "") + "authenticity_token=" + encodeURIComponent(window.AUTH_TOKEN); }); ajaxLinks(); }); The rendered html has: <input name="authenticity_token" type="hidden" value="ZaXj3ACQl+8JKtaDAUoxtSsqzEagSPyHbS25ai9qWCw=" /> <script type="text/javascript"> //<![CDATA[ window.AUTH_TOKEN = 'ZaXj3ACQl+8JKtaDAUoxtSsqzEagSPyHbS25ai9qWCw='; //]]> </script> and breakpointing through, shows that window.AUTH_TOKEN has been set. Any help to resolve this would be great.

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  • How to use SSL3 instead of TLS in a particular HttpWebRequest?

    - by Anton Tykhyy
    My application has to talk to different hosts over https, and the default setting of ServicePointManager.SecurityProtocol = TLS served me well up to this day. Now I have some hosts which (as System.Net trace log shows) don't answer the initial TLS handshake message but keep the underlying connection open until it times out, throwing a timeout exception. I tried setting HttpWebRequest's timeout to as much as 5mins, with the same result. Presumably these hosts are waiting for an SSL3 handshake since both IE and Firefox are able to connect to these hosts after a 30-40 seconds' delay. There seems to be some fallback mechanism in .NET which degrades TLS to SSL3, but it doesn't kick in for some reason. FWIW, here's the handshake message my request is sending: 00000000 : 16 03 01 00 57 01 00 00-53 03 01 4C 12 39 B4 F9 : ....W...S..L.9.. 00000010 : A3 2C 3D EE E1 2A 7A 3E-D2 D6 0D 2E A9 A8 6C 03 : .,=..*z>......l. 00000020 : E7 8F A3 43 0A 73 9C CE-D7 EE CF 00 00 18 00 2F : ...C.s........./ 00000030 : 00 35 00 05 00 0A C0 09-C0 0A C0 13 C0 14 00 32 : .5.............2 00000040 : 00 38 00 13 00 04 01 00-00 12 00 0A 00 08 00 06 : .8.............. 00000050 : 00 17 00 18 00 19 00 0B-00 02 01 00 : ............ Is there a way to use SSL3 instead of TLS in a particular HttpWebRequest, or force a fallback? It seems that ServicePointManager's setting is global, and I'd really hate to have to degrade the security protocol setting to SSL3 for the whole application.

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  • «HTTP::Message content must be bytes» error when trying to post

    - by ZyX
    I have the following code: ... sub setImage { my $self=shift; my $filename=shift; unless(-r $filename) { warn "File $filename not found"; return; } my $imgn=shift; my $operation=&URI::Escape::uri_escape_utf8( (shift) ? "???????! (Delete)" : "?????????! (Store)"); my $FH=&::File::open($filename, 0, 0); my $image; # &utf8::downgrade($image); sysread($FH, $image, 102400, 0); close $FH; my $imginfo=eval{&Image::Info::image_info(\$image)}; if($@ or $imginfo->{"error"}) { warn "Invalid image: ".($@ || $imginfo->{"error"}); return undef; } my $fields=[ DIR => $self->url("fl"), OPERATION => $operation, FILE_NAME => ".photo$imgn", # FILE => [$filename], FILE => [undef, "image.".$imginfo->{"file_ext"}, # Content_Type => $imginfo->{"file_media_type"}, # Content_Type => 'application/octet-stream', Content => $image, ], ]; my $response=&ZLR::UA::post( &ZLR::UA::absURL("/cgi-bin/file_manager")."", $fields, Content_Type => "form-data", ); print $response->decoded_content; } ... When I try to use function setImage it fails with error HTTP::Message content must be bytes at /usr/lib64/perl5/vendor_perl/5.8.8/HTTP/Request/Common.pm line 91. Worse that I can't reproduce this error without using all of my code and upgrading libwww-perl does nothing. What can cause it?

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  • Navigating between pages in a Facebook Platform iframe application

    - by Jimmy Cuadra
    I'm working on a Facebook Platform application that runs in iframe mode, and I'm having trouble understanding how to navigate between pages within the app. Let's say the first page that is loaded within the iframe at my canvas URL is one.html. Within that page, there is a link to two.html that just changes the source of the iframe and doesn't reload the Facebook chrome. When I do this, all the Facebook fb_sig_* query string parameters that Facebook passes to the original page aren't included, and so two.html has no awareness of the connection to Facebook and no ability to make API calls to generate the content for the page. One possible solution would be to manually extract all the Facebook parameters from one.html and append it to the link to two.html myself. This seems really ugly and I figured there had to be a cleaner way. For reference, my application is written in Perl and uses the WWW::Facebook::API module as a client library. I didn't see anything in it that I can use to easily reconstruct the Facebook parameters for use with links in iframe apps. Another possible solution would be to store all the Facebook parameters in a session on my server on the first page load, and just use the values in that session on subsequent page views. But what happens if the data I've stored no longer matches what Facebook would have sent if it were a completely new request (i.e. something in the user's Facebook session changed)? Is there something obvious I'm missing? What is the standard approach to navigating between pages within an iframe app? Facebook's documentation is atrocious and I haven't been able to find anything that clearly explains how this works. I also realize this wouldn't be an issue with an app using FBML instead of an iframe, but my understanding is that iframe apps are now encouraged over FBML apps, though again this seems ambiguous since so much of Facebook's documentation is outdated and contradictory.

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  • Problem with reCaptcha and .NET

    - by vtortola
    Hi, I get this error with reCaptcha: 'Input error: response: Required field must not be blank challenge: Required field must not be blank privatekey: Required field must not be blank' I'm sending the data via POST, so I don't understand what is going on. This is the code I use: public static Boolean Check(String challenge, String response) { try { String privatekey = "7LeAbLoSAAAABJBn05uo6sZoFNoFnK2XKyF3dRXL"; String remoteip = HttpContext.Current.Request.UserHostAddress; WebRequest req = WebRequest.Create("http://api-verify.recaptcha.net/verify"); req.Method = "POST"; using (StreamWriter sw = new StreamWriter(req.GetRequestStream())) { sw.Write("privatekey={0}&remoteip={1}&challenge={2}&response={3}", privatekey, remoteip, challenge, response); sw.Flush(); } String resultString = String.Empty; String errorString = String.Empty; using (StreamReader sr = new StreamReader(req.GetResponse().GetResponseStream())) { resultString = sr.ReadLine(); errorString = sr.ReadLine(); } Boolean b; return Boolean.TryParse(resultString, out b) && b; } catch (Exception) { return false; } } (Of course that'is not the correct private key :P) I have no idea what the problem is about, I think I'm sending the data correctly, but that error says that apparently I'm not sending anything. What could be the problem? Cheers.

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  • ASP.NET MVC 2 router matches correct area route but generates URL to the first registered area inste

    - by Sandor Drieënhuizen
    I'm working on a S#arpArchitecture 1.5 project, which uses ASP.NET MVC 2. I've been trying to get areas to work properly but I ran into a problem: The ASP.NET MVC 2 routing engine matches the correct route to my area but then it generates an URL that belongs to the first registered area instead. Here's my request URL: /Framework/Authentication/LogOn?ReturnUrl=%2fDefault.aspx I'm using the Route Tester from Phil Haack and it shows: Matched Route: Framework/{controller}/{action}/{id} Generated URL: /Data/Authentication/LogOn?ReturnUrl=%2FDefault.aspx using the route "Data/{controller}/{action}/{id}" That's clearly wrong, the URL should point to the Framework area, not the Data area. This is how I register my routes, nothing special there IMO. private static void RegisterRoutes(RouteCollection routes) { routes.IgnoreRoute("{resource}.axd/{*pathInfo}"); AreaRegistration.RegisterAllAreas(); routes.MapRoute( "default", "{controller}/{action}/{id}", new { controller = "Home", action = "Index", id = UrlParameter.Optional }); } The area registration classes all look like this. Again, nothing special. public class FrameworkAreaRegistration : AreaRegistration { public override string AreaName { get { return "Framework"; } } public override void RegisterArea(AreaRegistrationContext context) { context.MapRoute( "Framework_default", "Framework/{controller}/{action}/{id}", new { controller = "Home", action = "Index", id = UrlParameter.Optional }); } }

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  • How to fix security exception when using recaptcha on MVC site

    - by camainc
    I followed this excellent blog post to implement recaptcha on my MVC site: http://devlicio.us/blogs/derik_whittaker/archive/2008/12/02/using-recaptcha-with-asp-net-mvc.aspx I converted the code to VB, and everything seems to compile ok. However, when the code gets to the place where the recapture is about to be generated, I get a security exception. Here is the function where the exception occurs (on the last line in the function): <Extension()> _ Public Function GenerateCaptcha(ByVal htmlHelper As HtmlHelper) As MvcHtmlString Dim captchaControl As New Recaptcha.RecaptchaControl With captchaControl .ID = "recaptcha" .Theme = "blackglass" .PublicKey = "6Lcv9AsAAAAAALCSZNRfWFmrKjw2AR-yuZAL84Bd" .PrivateKey = "6Lcv9AsAAAAAAHCbRujWcZzrY0z6G_HIMvFyYEPR" End With Dim htmlWriter As New HtmlTextWriter(New IO.StringWriter) captchaControl.RenderControl(htmlWriter) Return MvcHtmlString.Create(htmlWriter.InnerWriter.ToString()) End Function The exception is this: Security Exception Description: The application attempted to perform an operation not allowed by the security policy. To grant this application the required permission please contact your system administrator or change the application's trust level in the configuration file. Exception Details: System.Security.SecurityException: Request for the permission of type 'System.Web.AspNetHostingPermission, System, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' failed. Has anyone else seen this exception, and if so, how did you fix it? Thanks

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  • Struts2 ParametersInterceptor problem with oauth_token

    - by Tahir Akram
    I am developing an application in Struts2 with Twitter4J at GAE/J. I am getting following exception in the GAE log. Unable to understand whats wrong with it. com.opensymphony.xwork2.interceptor.ParametersInterceptor setParameters: ParametersInterceptor - [setParameters]: Unexpected Exception caught setting 'oauth_token' on 'class com.action.Home: Error setting expression 'oauth_token' with value '[Ljava.lang.String;@146ac5a' Following is my struts.xml <!DOCTYPE struts PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 2.0//EN" "http://struts.apache.org/dtds/struts-2.0.dtd" <constant name="struts.enable.DynamicMethodInvocation" value="false" /> <constant name="struts.devMode" value="false" /> <package name="hello" extends="struts-default" > <action name="Home" class="com.action.Home"> <result name="SUCCESS">/home.jsp</result> <result name="ERROR">/message.jsp</result> </action> </package> Home.java code Twitter twitter = new Twitter(); HttpSession session = request.getSession(); twitter.setOAuthConsumer(FFConstants.CONSUMER_KEY, FFConstants.CONSUMER_SECRET); AccessToken accessToken = twitter.getOAuthAccessToken((String)session.getAttribute("token"), (String)session.getAttribute("tokenSecret")); twitter.setOAuthAccessToken(accessToken); User user = twitter.verifyCredentials(); It will be great if some one give me pointer on it. Thanks.

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  • htaccess mod_rewrite check file/directory existence, else rewrite?

    - by devians
    I have a very heavy htaccess mod_rewrite file that runs my application. As we sometimes take over legacy websites, I sometimes need to support old urls to old files, where my application processes everything post htaccess. My ultimate goal is to have a 'Demilitarized Zone' for old file structures, and use mod rewrite to check for existence there before pushing to the application. This is pretty easy to do with files, by using: RewriteCond %{IS_SUBREQ} true RewriteRule .* - [L] RewriteCond %{ENV:REDIRECT_STATUS} 200 RewriteRule .* - [L] RewriteCond Public/DMZ/$1 -F [OR] RewriteRule ^(.*)$ Public/DMZ/$1 [QSA,L] This allows pseudo support for relative urls by not hardcoding my base path (I cant assume I will ever be deployed in document root) anywhere and using subrequests to check for file existence. Works fine if you know the file name, ie http://domain.com/path/to/app/legacyfolder/index.html However, my legacy urls are typically http://domain.com/path/to/app/legacyfolder/ Mod_Rewrite will allow me to check for this by using -d, but it needs the complete path to the directory, ie RewriteCond Public/DMZ/$1 -F [OR] RewriteCond /var/www/path/to/app/Public/DMZ/$1 -d RewriteRule ^(.*)$ Public/DMZ/$1 [QSA,L] I want to avoid the hardcoded base path. I can see one possible solutions here, somehow determining my path and attaching it to a variable [E=name:var] and using it in the condition. Another option is using -U, but the tricky part is stopping it from hijacking every other request when they should flow through, since -U is really easy to satisfy. Any implementation that allows me to existence check a directory is more than welcome. I am not interested in using RewriteBase, as that requires my htaccess to have a hardcoded base path.

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  • Error: Only LDAP Connection Strings are Supported against Active Directory

    - by Brent Pabst
    I have the following ASP.NET Membership section defined in the Web.config file: <membership defaultProvider="AspNetActiveDirectoryMembershipProvider"> <providers> <clear/> <add connectionStringName="ADService" connectionUsername="umanage" connectionPassword="letmein" enablePasswordReset="true" enableSearchMethods="true" applicationName="uManage" clientSearchTimeout="30" serverSearchTimeout="30" name="AspNetActiveDirectoryMembershipProvider" type="System.Web.Security.ActiveDirectoryMembershipProvider, System.Web, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" /> </providers> </membership> The Connection string looks like this: <add name="ADService" connectionString="ldap://familynet.local" /> Whenever I call the following code: Membership.GetAllUsers(); I get the following error: Configuration Error Description: An error occurred during the processing of a configuration file required to service this request. Please review the specific error details below and modify your configuration file appropriately. Parser Error Message: Only LDAP connection strings are supported against Active Directory and ADAM. I don't understand why the system is claiming the LDAP connection string is bad because it is in fact a valid LDAP string as specified by the MSDN documentation. http://msdn.microsoft.com/en-us/library/system.web.security.activedirectorymembershipprovider.aspx Any ideas?

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  • storing user info/pass in web.config authentication

    - by Tomaszewski
    Hello, I am trying to write a simple internal app with some simple authentication. I'm also trying to make this quick and learn about the forms authentication via web.config. So i have my authentication working if I hard code my 'user name' and 'password' into C# code and do a simple conditional. However, I'm having a tough time storing the a user/pass to be checked against in the web.config file. The MSDN manual says to put this into the web.config: <authentication mode="Forms"> <forms loginUrl="login.aspx"> <credentials passwordFormat="SHA1"> <user name="user1" password="27CE4CA7FBF00685AF2F617E3F5BBCAFF7B7403C" /> <user name="user2" password="D108F80936F78DFDD333141EBC985B0233A30C7A" /> <user name="user3" password="7BDB09781A3F23885CD43177C0508B375CB1B7E9"/> </credentials> </forms> </authentication> However, the minute I add 'credentials' into the 'authentication' section, I get this error: Server Error in '/' Application. Configuration Error Description: An error occurred during the processing of a configuration file required to service this request. Please review the specific error details below and modify your configuration file appropriately. Parser Error Message: Unrecognized element 'credentials'. Source Error: Line 44: <authentication mode="Forms"> Line 45: <forms loginUrl="login.aspx" /> Line 46: <credentials> Line 47: Line 48: </credentials> Source File: C:\inetpub\wwwroot\asp\projects\passwordCatalog\passwordCatalog\web.config Line: 46 So my question is, how and where would I add the following in the web.config file? <credentials passwordFormat="SHA1"> <user name="johndoe" password="mypass123" /> </credentials>

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  • Ideas for networking project

    - by Chris Thompson
    Hi all, I'm a graduating senior in computer science taking a computer networks class and I'm trying to figure out my final project. I normally am not at a loss for ideas but be it senioritis or straight burn out, I've got nothing. I've done some fun stuff in the past, but I just can't seem to come up with a good idea. Given the mass of brilliance on this site, I figured it would be a good place to request some suggestions. To give you an idea of scope, it's due in about a month and I would consider myself proficient with mobile architectures like Android (although I have no iPhone experience) along with Java, C++, etc. If you can suggest an idea, I'd be happy to make it work in whatever language I know. Like I said, I'm a senior and will be graduating so I'd rather not take on something that would kill me... Also, I'd be happy to make it open source if it's an idea you'd always wanted to work on but didn't have the time to start. Thanks in advance for the help! Chris Edit 1: Thanks so much for the suggestions everyone! Unfortunately I've actually already written a chat client (for a network security class) and I think I'd run into some honor code issues if I did that again, although that's always a great option. I like the game idea and that's actually something I've never attempted before (in any capacity) although given that, I'm a little scared about time...

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  • jQuery and XML (with CDATA)

    - by P..
    I've seen the post that deal with this issue but I still can't solve my issue: I've got XML with CDATA and when I parse the XML, it includes the CDATA (which I don't want). XML sample: <mainnav> <nav path="/" xmlpath="home.xml" key="footer" navigator=""> <display><![CDATA[Home]]></display> <title><![CDATA[Home]]></title> </nav> <nav path="/nav1/" xmlpath="nav1.xml" key="primary" navigator="primary" iconid="0"> <display><![CDATA[Nav 1]]></display> <title><![CDATA[Nav 1]]></title> <overdesc><![CDATA[test nav 1]]></overdesc> <sub path="/nav1/sub1/" xmlpath="nav1/sub1.xml" key="sub"> <display><![CDATA[sub 1<br />of nav 1]]></display> <title><![CDATA[sub 1<br />of nav 1]]></title> </sub> </nav> <nav path="/nav1/" xmlpath="nav2.xml" key="primary" navigator="primary" iconid="1"> <display><![CDATA[Nav 2]]></display> <title><![CDATA[Nav 2]]></title> <overdesc><![CDATA[test nav 2]]></overdesc> <sub path="/nav2/sub1/" xmlpath="nabv2/sub1.xml" key="sub"> <display><![CDATA[sub 1<br />of nav 2]]></display> <title><![CDATA[sub 1<br />of nav2]]></title> </sub> </nav> </mainnav> jQuery: $(document).ready(function(){ $.ajax({ type: "GET", url: "site_xml/config.xml", //contentType: "text/xml", dataType: ($.browser.msie) ? "xml" : "text/xml", success: parseXML, error: function(XMLHttpRequest, textStatus, errorThrown) { alert(errorThrown); } });}); function parseXML(xml) { $(xml).find('nav').each(function(){ if ($(this).attr("key")=="primary") { // this is a primary nav item; var title = $.trim( $(this).find('title').text() ); alert(title); $("#output").append(title); //nothing showing up in my output DIV, presumably due to the CDATA tags? } }); }

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