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• RESTful web services - best way to return result of an operation?

  - by saille

  I am designing a RESTful API and I would like to know what the most RESTful way is to return details about an operation. E.g. an operation on a resource occurs when some data is POSTed to a URL. HTTP status codes will indicate either success or failure for the operation. But apart from success/failure I need to indicate some other info to the client, such as an ID number. So my question is, should the ID number be returned in an XML document in the response content, or should it be returned in some custom HTTP header fields? Which is more in line with the principles of REST? Or am I free to choose.

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• Content-Length header not returned from Pylons response

  - by Evgeny

  I'm still struggling to Stream a file to the HTTP response in Pylons. In addition to the original problem, I'm finding that I cannot return the Content-Length header, so that for large files the client cannot estimate how long the download will take. I've tried response.content_length = 12345 and I've tried response.headers['Content-Length'] = 12345 In both cases the HTTP response (viewed in Fiddler) simply does not contain the Content-Length header. How do I get Pylons to return this header? (Oh, and if you have any ideas on making it stream the file please reply to the original question - I'm all out of ideas there.)

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• How to securely communicate with a database using a java applet

  - by WarmWaffles

  I have been writing web applications for quite sometime in PHP with MySQL. I always stored my database connection information into a configuration variable and connected to the database that way. A client wants a java applet for their website to communicate with their database. I'm very hesitant on this because the applet is going to be public and I am not sure how I would go about storing the database connection information. I'm paranoid that someone would decompile my application or find some way to extract my database connection information and use it maliciously. Any suggestions on how to do this securely?

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• Any Way to Further Customize Embedded Google Calendar?

  - by user117737

  I'd like to embed a few Google Calendars for my client's web site. The "Google Embeddable Calendar Helper" provides very few customization options. Updating the hex code for the background color in the generated source only works if you pick one of the ~70 standard Google Calendar bg colors. (I can tweak the "border" selector because at least it's in an actual statement.) A "view-source" on the rendered page shows a CSS file loaded from the iframe, but I obviously can't change anything in there. And I assume I can't force an override of selectors with my own CSS file because I have no way of "injecting" it into the iframe. Does anyone know of a (non-API) way of tweaking the colors, fonts, and other CSS thingies in an embedded Google Calendar? Thanks in advance...

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• WCF service blocked by Windows Firewall

  - by Michael Stoll

  Hi, I've got a WCF service using a HttpBinding. The service is running in a self hosting process (A Windows Service) and this process is inside the Windows Firewall exceptions list. If the Firewall is active and I'm trying to access the service using a C# client or Internet Explorer, the service does not respond. But if the Firewall is disabled the connection works like a charm. Does anyone have expirence with WCF and the Windows Firewall? The problem came up on Windows 7 64bit. I didn't try another OS yet. Regards Michael

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• HttpServletResponse XML to Java

  - by Mike

  I am maintaining this servlet that has a HttpServletResponse response that replies back to the client an XML message. I want to take the XML message and convert it to JSON, then send the JSON back. I want to avoid writing my own JSON converter if possible. Does anyone have a good method of doing this? I googled for this: http://pvoss.wordpress.com/2009/02/26/servlet-filter-to-convert-xml-to-json/ , which is exactly what I want but they are using a hacked dom4j jar which doesn't help me.

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• browser cookie issue

  - by George2

  Hello everyone, In my previous understanding, for a web site, only login user of a web site (no matter what login/authentication approach is used) could have cookie as persistent identifier, so that if the user close the browser, open browser again to go to the same web site, the web site could remember the user. But I learned recently that it seems for non-login user, there could still be a cookie associated with the user (after the user close browser, and then open the browser again to go to the same web site, the web site could remember the user), and it is called browser cookie? Is that true? If it is true, who is responsible to set the browser cookie? i.e. need some coding/config at web server side, client browser configuration (without coding from server side), or both? How could web server access such cookie? Appreciate if any code samples. thanks in advance, George

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• customize Help Center Live HLC

  - by Andy

  Hi, I just installed Help Center Live which works fine, but I would like to make just one minor adjustment and after looking almost everywhere I couldn't find the file where the text was listen in. At the end of each chat the user can request a copy of the transcript. I tested it and it got into the spam folder of my email client. Why, I don't know, but the point here is I would lik to add some text. After a user finishes a chat session, he or she gets a page hcl/live/chat/end.php with the following text displayed somewhere: "To e-mail yourself a copy of the transcript, please enter your e-mail address below." After entering the address and pressing submit there is a confirmation message: "A copy of the transcript has been sent to your e-mail address." And I would like to add: "Please check your spam folder if you haven't received your transcript" How can this be done? Thanks.

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• subversion merge back to trunk

  - by Berryl

  I set up a branch several weeks ago. When some changes were made to the trunk, SVN was committing to the branch, and not the trunk. The changes were minor and applicable to the branch anyway, so I assumed this is how the branch should work. Now that the branch work is finished, I merged back the branch back to my working trunk, assuming SVN would replace the old trunk with the new branch in the repository as well. That is not the case though. My repository trunk is out of date. I would like to make the repository trunk be same as the branch and then delete the branch. How can I do this? Cheers, Berryl Note: I am using tortoise / visualvsn client.

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• Limit the model data fields serialized by Web API based on the return type Interface

  - by Stevo3000

  We're updating our architecture to use a single object model for desktop, web and mobile that can be used in the MVVM pattern. I would like to be able to limit the data fields that are serialized through Web API by using interfaces on the controllers. This is required because the model objects for mobile are stored in HTML5 local storage so don't carry optional data while a thin desktop client would be able to store (and work with) more data. To achieve this a model will implement the different interfaces that define which data fields should be serialized and there will be a controller specific to the interface. The problem is that the Web API always serializes every field in the model even if it is not part of the interface being returned. How can we only serialize fields in the returned interface?

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• ADO "Unspecified Error" instead of actual error when fetching server side cursor

  - by Dan

  This relates to my recent question: http://stackoverflow.com/questions/2835663/force-oracle-error-on-fetch I am now able to reproduce a scenario where using ADO with the Oracle OLEDB Provider, I can force an error such as ORA-01722: invalid number to occur on calling Recordset.MoveNext However, this is not the error that is returned to the application. Instead, the application sees Provider error '80004005' Unspecified error. How can I get the application to see the real error from the database? This is with Oracle 10g (client and server), if it matters. Sample code is roughly as follows: Dim con As New ADODB.Connection Dim cmd As New ADODB.Command Dim rs As ADODB.Recordset con.ConnectionString = "Provider=OraOLEDB.ORACLE;Data Source=xxx;User Id=yyy;Password=zzz" con.CursorLocation = adUseServer con.Open Set cmd.ActiveConnection = con cmd.CommandText = "select * from table(ret_err)" cmd.Prepared = True Set rs = cmd.Execute While Not rs.EOF rs.MoveNext Wend

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• Select no tabs in a UITabBar

  - by Tom

  Hi, I'm trying to select no tabs at all in my application. At first the first tab is selected, but I'd like to deselect it so no tabs at all would be selected. Don't ask me why, it's just that way the client wants it! hehe Thanks for your help! PS: I already tried: // rootController = UITabBarController rootController.tabBar.selectedItem = 0; rootController.tabBar.selectedItem = nil; [rootController setSelectedIndex:[rootController.items objectAtIndex:0]]; [rootController setSelectedIndex:nil]; [rootController setSelectedIndex:0]; // That one works : (but I can't select 0 or -1 for instance) [rootController setSelectedIndex:2]; Any ideas? Thanks again!

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• Good book suggestions for building enterprise software

  - by ncoder

  Enterprise software are built using technologies/softwares/terminologies/APIs such as EJB, JBoss, Seam, Hibernate(JPA), Maven, Eclipse, Spring, JTS, JMS, JNDI etc. I know there are great books out there for each of these individually, however can someone suggest a book or two that covers all (or most of) these topics in lesser detail and gives examples of how these are integrated? I have intentionally left the client side stuff out because its highly unlikely a single book would cover that much. If anyone knows of a book (or books) that cover most of or various combinations (like EJB, Hibernate, Spring and Seam) of these technologies, please do suggest the same. The idea is not to become an expert in all however know about them in reasonable detail and why each one is required.

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• How to correctly load 32-bit DLL dependencies when running a program from a batch file

  - by neilwhitaker1

  I have written a tool that references Microsoft.TeamFoundation.VersionControl.Client.dll, which is a 32-bit DLL. When I build my tool on 64-bit Windows, I set Visual Studio to specifically target X86 in order to force it to a 32-bit build. Targetting X86 instead of All-CPU's prevents me from getting a BadImageFormatException, as long as I invoke the tool directly (e.g. by typing "myTool.exe" on the command line). However, if I run a batch file that invokes the tool, I still get the exception. This happens even if the batch file runs in a 32-bit command prompt (%WINDIR%\SysWOW64\cmd.exe). What else can I do to make this work?

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• Java URL("file://") doesn't work on Windows XP

  - by Soumya Simanta

  For some reason the following code doesn't work on Windows XP. new URL("file://" + tempfile.getAbsolutePath()); I'm using Java 1.6. Java(TM) SE Runtime Environment (build 1.6.0_31-b05) Java HotSpot(TM) Client VM (build 20.6-b01, mixed mode, sharing) However, the same code just works fine in OS X (Lion) and Java 1.6 java version "1.6.0_29" Java(TM) SE Runtime Environment (build 1.6.0_29-b11-402-11M3527) Java HotSpot(TM) 64-Bit Server VM (build 20.4-b02-402, mixed mode) Linux (Linux 2.6.32-38-generic #83-Ubuntu x86_64 GNU/Linux) with Java 1.6 java version "1.6.0_26" Java(TM) SE Runtime Environment (build 1.6.0_26-b03) Java HotSpot(TM) 64-Bit Server VM (build 20.1-b02, mixed mode) Based on this the above code should work.

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• How can one make a web-site accessible only when someone has a dongle?

  - by Brian M. Hunt

  Suppose you want to add an extra layer of credentials on top of a SSL-encrypted login/password, but you don't want to increase complexity to the user. Is there a way to add the requirement of the possession of a dongle to web-server authentication schemes with existing cross-platform browser capabilities? In other words, to get access to the web-site, you would need a username, password, and a USB dongle that has been plugged into the client computer. The dongle would presumably do some sort of challenge/response. It'd be ideal if this dongle solution worked with Firefox automatically or with the simple addition of a plugin. Thoughts and suggestions are appreciated.

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• Can i make products on Paypal site

  - by Mirage

  I offer hosting to only 2 clients for 2 diff products. I don't want to build the site and tell them to pay. Is is possible that on my paypal account i create two products like Product1 - monthly subscription 20 product 2 - monnthly yearly subscription 150 So that i can just send them the link and it automatically gets deducted from their account. One thing more can i send same link to other client as well who has bought the same product. Can i group them in paypal system to see which one has paid and which one does not Thanks

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• SQL Try catch purpose unclear

  - by PaN1C_Showt1Me

  Let's suppose I want to inform the application about what happened / returned the SQL server. Let's have this code block: BEGIN TRY -- Generate divide-by-zero error. SELECT 1/0; END TRY BEGIN CATCH SELECT ERROR_NUMBER() AS ErrorNumber, ERROR_SEVERITY() AS ErrorSeverity, ERROR_STATE() as ErrorState, ERROR_PROCEDURE() as ErrorProcedure, ERROR_LINE() as ErrorLine, ERROR_MESSAGE() as ErrorMessage; END CATCH; GO and Let's have this code block: SELECT 1/0; My question is: Both return the division by zero error. What I don't understand clearly is that why I should surround it with the try catch clausule when I got that error in both cases ? Isn't it true that this error will be in both cases propagated to the client application ?

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• WCF error service error message with shared classes

  - by sevenalive

  Source code: http://code.google.com/p/sevenupdate/source/browse/#hg/Source/SevenUpdate.Base SevenUpdate.Base.Sui cannot be used since it does not match imported DataContract. Need to exclude this type from referenced types. Now I tried unchecking reuse reference types and I was able to get my project to compile. but when sending a collection from the client it was never received or couldn't be deserialized on the server end. I really need this to work. Any help would be appreciated, the fullsource code is provided by google code.

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• Dynamic Accordion

  - by Kubi

  Hi, I need a little bit help. I want to implement my object collection with a jquery accordion. But when I should change the java script of the accordion so that I will be able to call a server side method when I click on the Header part of the accordion in my asp.net application. My javascript and jquery knowledge is very limited so any help would be greatly appreciated ! Thanks. p.s. any accordion script would do fine for me since I am able to call a server side function from client side which is the header div of the accordion

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• Dynamic Database connection

  - by gsieranski

  I have multiple client databases that I need to hit on the fly and I am having trouble getting the code I have to work. At first I was just storing a connection string in a clinet object in the db, pulling it out based on logged-in user, and passing it to linq data context constructor. This works fine in my development enviorment but is failing on the Winhost server I am using. It is running SQL 2008. I am getting a "The current configuration system does not support user scoped settings." error. Any help or guidance on this issue is greatly appreciated. Greg

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• iphone tableview & webservice

  - by Anonymous

  Hi, I have a tableview, when the user selects a row i call a webservice depending on which row is selected. my problem is i can connect to the webservice but i dont get any response from the webservice. I used soap client to test if webservice is working correctly or not. //rootviewcontroller.m - (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {.... //call to webservice [self connectToWebService]; } On debugging i found that my code does not go to any of the following methods -(void)connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse *) response{} -(void) connection:(NSURLConnection *) connection didReceiveData:(NSData *) data {} -(void) connection:(NSURLConnection *) connection didFailWithError:(NSError *) error{} -(void) connectionDidFinishLoading:(NSURLConnection *) connection {} any suggestions where am i going wrong??? thanks

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• How do I detect the OpenJDK in my applet (System Properties)?

  - by Stefan Kendall

  How can I determine if my client is running OpenJDK with a web plugin? I've tried java.version and the rest of the properties listed here. Running java -version from the terminal works fine, but if I went this route, java would have to be on the user's path, which I don't know if I can trust entirely. Is there any other way to see the string given by java -version programmatically, without shelling out to the command line or terminal? Right now, when I run System.getProperties().getProperty("java.version"), I get Sun Microsystems Inc.!

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• charts, forms and credit card payment in drupal

  - by mingos

  Hey. I've got this client who's a dietician and wants a site with some functionality I'm not sure how to implement: custom forms that calculate some stuff (like ideal body weight, based on a bazillion factors), the user is supposed to be able to pay for the consultation with a credit card - which lets him access more consultation forms, bi-weekly results from how a user's diet is going (weight reduction and so on) should be displayed using a series of charts, preferably in the user's account page. I use Drupal exclusively, so the question is whether such functionality can be implemented using existing modules? Which modules would you recommend? Can this be achieved without writing custom modules (I've never written a Drupal module)? Thanks in advance for your suggestions.

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• SharePoint ECMAScript: Web.DoesUserHavePermissions()

  - by Donaldinio

  I am trying to determine the permission level of the current user using the ECMAScript client OM. The following code always returns 0. Any thoughts? function Initialize() { clientContext = new SP.ClientContext.get_current(); web = clientContext.get_web(); clientContext.load(web); clientContext.executeQueryAsync(Function.createDelegate(this, this.onSiteLoadSuccess), Function.createDelegate(this, this.onQueryFailed)); } function isUserWebAdmin() { var permissionMask = null; permissionMask = new SP.BasePermissions(); permissionMask.set(SP.PermissionKind.manageWeb); var result = new SP.BooleanResult(); result = web.doesUserHavePermissions(permissionMask); alert(result.get_value()) }

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