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• Browser-based application or stand-alone GUI app?

  - by crystalattice

  I'm sure this has been asked before, but I can't find it. What are the benefits/limitations of using a browser-based interface for a stand-alone application vs. using a normal GUI framework? I'm working on a Python program currently implement with wxPython for the GUI. The application is simply user-entry forms and dialogs. I am considering moving to PyQt because of the widgets it has (for future expansion), then I realized I could probably just use a browser to do much of the same stuff. The application currently doesn't require Internet access, though it's a possibility in the future. I was thinking of using Karrigell for the web framework if I go browser-based. Edit For clarification, as of right now the application would be browser-based, not web-based. All the information would be stored locally on the client computer; no server calls would need to be made and no Internet access required (it may come later though). It would simply be a browser GUI instead of a wxPython/PyQt GUI. Hope that makes sense.

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• multithreading issue

  - by vbNewbie

  I have written a multithreaded crawler and the process is simply creating threads and having them access a list of urls to crawl. They then access the urls and parse the html content. All this seems to work fine. Now when I need to write to tables in a database is when I experience issues. I have 2 declared arraylists that will contain the content each thread parse. The first arraylist is simply the rss feed links and the other arraylist contains the different posts. I then use a for each loop to iterate one while sequentially incrementing the other and writing to the database. My problem is that each time a new thread accesses one of the lists the content is changed and this affects the iteration. I tried using nested loops but it did not work before and this works fine using a single thread.I hope this makes sense. Here is my code: SyncLock dlock For Each l As String In links finallinks.Add(l) Next End SyncLock SyncLock dlock For Each p As String In posts finalposts.Add(p) Next End SyncLock ... Dim i As Integer = 0 SyncLock dlock For Each rsslink As String In finallinks postlink = finalposts.Item(i) i = i + 1 finallinks and finalposts are the two arraylists. I did not include the rest of the code which shows the threads working but this is the essential part where my error occurs which is basically here postlink = finalposts.Item(i) i = i + 1 ERROR: index was out of range. Must be non-negative and less than the size of the collection Is there an alternative?

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• Accesing WinCE ComboBox DroppedDown property (.NET CF 2.0)

  - by PabloG

  I'm implementing custom behavior sub-classing the form controls, but I cannot manage to access the DroppedDown property of the ComboBox. Looking in the help, it's supposed to be supported in CF.NET 2.0: using System; using System.Collections.Generic; using System.ComponentModel; using System.Drawing; using System.Data; using System.Text; using System.Windows.Forms; namespace xCustomControls { public partial class xComboBox : System.Windows.Forms.ComboBox { private ComboBox comboBox1; public xComboBox() { InitializeComponent(); this.KeyDown += new KeyEventHandler(this.KeyDownHandler); } private void KeyDownHandler(object sender, KeyEventArgs e) { // DroppedDown doesn't appear in the IntelliSense of ComboBox. // or this.comboBox1. if (((ComboBox)sender).DroppedDown) // fail! return; switch (e.KeyData) { case Keys.Up: case Keys.Enter: case Keys.Down: e.Handled = true; this.Parent.SelectNextControl((Control)sender, e.KeyData != Keys.Up, true, true, true); ... fails with 'System.Windows.Forms.ComboBox' does not contain a definition for 'DroppedDown' and no extension method 'DroppedDown' accepting a first argument of type 'System.Windows.Forms.ComboBox' could be found How can I access the property? TIA, Pablo

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• AS 3.0 reference problem

  - by vasion

  I am finding it hard to fugure out the reference system in AS 3.0. this is the code i have (i have trimmed it down in order to find the problem but to no avail) package rpflash.ui { import flash.display.Sprite; import flash.display.MovieClip; import flash.display.Stage; import nowplaying; import flash.text.TextField; public class RPUserInterface extends Sprite{ var np:nowplaying; public function RPUserInterface(){ } public function init(){ var np:nowplaying = new nowplaying(); this.addChild(np) } public function updateplayer(xml:XML){ var artist: String = xml.nowplaying.artist.toString(); var title: String = xml.nowplaying.title.toString(); trace("UI:update"); trace(this.np);// this gives me a null reference } } } and still i cannot access np!!! trace this.np gives me a null reference. i am not even trying to access it from a subling class. (btw i def want to know how to do that as well.)

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• Android app after update: crashes on Motorola Cliq with weird stacktrace

  - by sandis

  So after updating my app on the market I am getting reports from motorola cliq-users that my app crashes on start. The stacktrace is below, and is not very helpful since it does not go trough my app! Unfortunately I have no access to a motorola cliq-phone by myself, and I have changed too many things in this update to know what is causing the trouble. Have anyone of you guys run into the same problem? I would very much appreciate help with this problem! 05-26 11:44:06.521 I/PacketReader( 116): Got the features element 05-26 11:44:06.941 W/WindowManager( 86): No window to dispatch pointer action 0 05-26 11:44:07.381 W/WindowManager( 86): No window to dispatch pointer action 1 05-26 11:44:07.691 W/ActivityManager( 86): Launch timeout has expired, giving up wake lock! 05-26 11:44:07.931 W/ActivityManager( 86): Activity idle timeout for HistoryRecord{43714db8 {my.package/my.package.Main}} 05-26 11:44:08.531 E/AndroidRuntime( 565): Uncaught handler: thread main exiting due to uncaught exception 05-26 11:44:08.541 E/AndroidRuntime( 565): java.lang.RuntimeException: Unable to start activity ComponentInfo{my.packageC/my.package.Main}: java.lang.NullPointerException 05-26 11:44:08.541 E/AndroidRuntime( 565): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2297) 05-26 11:44:08.541 E/AndroidRuntime( 565): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2313) 05-26 11:44:08.541 E/AndroidRuntime( 565): at android.app.ActivityThread.access$2000(ActivityThread.java:115) 05-26 11:44:08.541 E/AndroidRuntime( 565): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1721) 05-26 11:44:08.541 E/AndroidRuntime( 565): at android.os.Handler.dispatchMessage(Handler.java:99) 05-26 11:44:08.541 E/AndroidRuntime( 565): at android.os.Looper.loop(Looper.java:123) 05-26 11:44:08.541 E/AndroidRuntime( 565): at android.app.ActivityThread.main(ActivityThread.java:3977) 05-26 11:44:08.541 E/AndroidRuntime( 565): at java.lang.reflect.Method.invokeNative(Native Method) 05-26 11:44:08.541 E/AndroidRuntime( 565): at java.lang.reflect.Method.invoke(Method.java:521) 05-26 11:44:08.541 E/AndroidRuntime( 565): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:782) 05-26 11:44:08.541 E/AndroidRuntime( 565): at com.android.internal.os.ZygoteI

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• Registry remotley hacked win 7 need help tracking the perp

  - by user577229

  I was writing some .VBS code at thhe office that would allow certain file extensions to be downloaded without a warning dialog on a w7x32 system. The system I was writing this on is in a lab on a segmented subnet. All web access is via a proxy server. The only means of accessing my machine is via the internet or from within the labs MSFT AD domain. While writing and testing my code I found a message of sorts. Upon refresing the registry to verify my code changed a dword, instead the message HELLO was written and visible in regedit where the dword value wass called for. I took a screen shot and proceeded to edit my code. This same weird behavior occurred last time I was writing registry code except on another internal server. I understand that remote registry access exists for windows systems. I will block this immediately once I return to the office. What I want to know is, can I trace who made this connection? How would I do this? I suspect the cause of this is the cause of other "odd" behaviors I'm experiencing at work such as losing control of my input director master control for over an hour and unchanged code that all of a sudden fails for no logical region. These failures occur at funny times, whenver I'm about to give a demonstration of my test code. I know this sounds crazy however knowledge of the registry component makes this believable. Once the registry can be accessed, the entire system is compromised. Any help or sanity checking is appreciated.

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• Is a GWT app running on Google App Engine protected from CSRF

  - by gerdemb

  I'm developing a GWT app running on the Google App Engine and wondering if I need to worry about Cross-site request forgery or is that automatically taken care of for me? For every RPC request that requires authentication, I have the following code: public class BookServiceImpl extends RemoteServiceServlet implements BookService { public void deleteInventory(Key<Inventory> inventoryKey) throws NotLoggedInException, InvalidStateException, NotFoundException { DAO dao = new DAO(); // This will throw NotLoggedInException if user is not logged in User user = dao.getCurrentUser(); // Do deletion here } } public final class DAO extends DAOBase { public User getCurrentUser() throws NotLoggedInException { currentUser = UserServiceFactory.getUserService().getCurrentUser(); if(currentUser == null) { throw new NotLoggedInException(); } return currentUser; } I couldn't find any documentation on how the UserService checks authentication. Is it enough to rely on the code above or do I need to to more? I'm a beginner at this, but from what I understand to avoid CSRF attacks some of the strategies are: adding an authentication token in the request payload instead of just checking a cookie checking the HTTP Referer header I can see that I have cookies set from Google with what look like SID values, but I can't tell from the serialized Java objects in the payloads if tokens are being passed or not. I also don't know if the Referer header is being used or not. So, am I worrying about a non-issue? If not, what is the best strategy here? This is a common enough problem, that there must be standard solutions out there...

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• PayPal integration woes: PDT hangs on return to site

  - by Tom

  Hi, I'm implementing PayPal IPN & PDT. After some headache & time at the sandbox, IPN is working well and PDT returns the correct $_GET data. The implementation is as follows: Pass user ID in form to PayPal User buys product and triggers IPN which updates database for given user ID PDT returns transaction ID when user returns to site The return page says "please wait" and repeat-Ajax-checks for the transaction status User is redirected to success/failure page Everything works well, EXCEPT that when using the PayPal ready PHP code for PDT to do a return POST, the page hangs. PayPal waits for a response and the user never gets back to my site. I'm not getting a fail status, just nothing. The funny thing is that once the unknown error occurs, my test domain becomes unresponsive for a short period. The code (PHP): https://www.paypal.com/us/cgi-bin/webscr?cmd=p/xcl/rec/pdt-code-outside If I comment out the POST back, it all works fine. I'm able to pin down the problem to once the code enters the while{} loop. Unfortunately, I'm not experienced enough to write a replacement from scratch for the PayPal code, so would really appreciate any ideas on what might be wrong. The POST back goes to ssl://www.sandbox.paypal.com, and I'm using button code and an authorisation token that have all been created via a sandbox test account. Thanks in advance.

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• Nested parsers in happy / infinite loop?

  - by McManiaC

  I'm trying to write a parser for a simple markup language with happy. Currently, I'm having some issues with infinit loops and nested elements. My markup language basicly consists of two elements, one for "normal" text and one for bold/emphasized text. data Markup = MarkupText String | MarkupEmph [Markup] For example, a text like Foo *bar* should get parsed as [MarkupText "Foo ", MarkupEmph [MarkupText "bar"]]. Lexing of that example works fine, but the parsing it results in an infinite loop - and I can't see why. This is my current approach: -- The main parser: Parsing a list of "Markup" Markups :: { [Markup] } : Markups Markup { $1 ++ [$2] } | Markup { [$1] } -- One single markup element Markup :: { Markup } : '*' Markups1 '*' { MarkupEmph $2 } | Markup1 { $1 } -- The nested list inside *..* Markups1 :: { [Markup] } : Markups1 Markup1 { $1 ++ [$2] } | Markup1 { [$1] } -- Markup which is always available: Markup1 :: { Markup } : String { MarkupText $1 } What's wrong with that approach? How could the be resolved? Update: Sorry. Lexing wasn't working as expected. The infinit loop was inside the lexer. Sorry. :) Update 2: On request, I'm using this as lexer: lexer :: String -> [Token] lexer [] = [] lexer str@(c:cs) | c == '*' = TokenSymbol "*" : lexer cs -- ...more rules... | otherwise = TokenString val : lexer rest where (val, rest) = span isValidChar str isValidChar = (/= '*') The infinit recursion occured because I had lexer str instead of lexer cs in that first rule for '*'. Didn't see it because my actual code was a bit more complex. :)

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• svnserve not strictly required?

  - by Kev

  I was reading the Red Bean book and noticed this paragraph: Do not be seduced by the simple idea of having all of your users access a repository directly via file:// URLs. Even if the repository is readily available to everyone via a network share, this is a bad idea. It removes any layers of protection between the users and the repository: users can accidentally (or intentionally) corrupt the repository database, it becomes hard to take the repository offline for inspection or upgrade, and it can lead to a mess of file permission problems (see the section called “Supporting Multiple Repository Access Methods”). Note that this is also one of the reasons we warn against accessing repositories via svn+ssh:// URLs—from a security standpoint, it's effectively the same as local users accessing via file://, and it can entail all the same problems if the administrator isn't careful. I realized that, since I'm the only one accessing the repository, ever, none of these caveats seem to apply. Can I safely down svnserve then and only ever have to worry about upgrading my TortoiseSVN client, not both the client and the server whenever there's a new version out? (I've tried it already--just needed to use the Relocate feature to switch from svn:// to file://--but I wanted to make sure something wouldn't be sneaking up on me if I left it this way.)

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• Setting Connection Parameters via ADO for MSSQL

  - by taspeotis

  Is it possible to set a connection parameter on a connection to SQL Server and have that variable persist throughout the life of the connection? The parameter must be usable by subsequent queries. We have some old Access reports that use a handful of VBScript functions in the SQL queries (let's call them GetStartDate and GetEndDate) that return global variables. Our application would set these before invoking the query and then the queries can return information between date ranges specified in our application. We are looking at changing to a ReportViewer control running in local mode, but I don't see any convenient way to use these custom functions in straight T-SQL. I have two concept solutions (not tested yet), but I would like to know if there is a better way. Below is some psuedo code. Set all variables before running Recordset.OpenForward Connection->Execute("SET @GetStartDate = ..."); Connection->Execute("SET @GetEndDate = ..."); // Repeat for all parameters Will these variables persist to later calls of Recordset->OpenForward? Can anything reset the variables aside from another SET/SELECT @variable statement? Create an ADOCommand "factory" that automatically adds parameters to each ADOCommand object I will use to execute SQL // Command has been previously been created ADOParameter *Parameter1 = Command->CreateParameter("GetStartDate"); ADOParameter *Parameter2 = Command->CreateParameter("GetEndDate"); // Set values and attach etc... What I would like to know if there is something like: Connection->SetParameter("GetStartDate", "20090101"); Connection->SetParameter("GetEndDate", 20100101"); And these will persist for the lifetime of the connection, and the SQL can do something like @GetStartDate to access them. This may be exactly solution #1, if the variables persist throughout the lifetime of the connection.

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• What is a good programming language/environment for Linux database applications?

  - by Dkellygb

  I could use some advice on my move from the Windows world to Linux. For my business, I have used VB6 and Microsoft Access with both Access databases and SQL server in the past. The easy to use forms, report writers and programming language were perfect for CRUD apps and analysis for our small hotel/restaurant business. After using Linux at home for some time I would like to convert our small business. Our server is already a Linux box using Samba. I am happy with the OpenOffice.org applications instead of Microsoft Office. The only thing which is holding me back is a desktop database application where I can develop the forms and reports we require. Base does not seem to be up to the job yet from my experience. I would like something like VB.Net with visual studio (express) but I would like to avoid Mono – I just don’t see the point of it. (You can correct me if I’m wrong.) But a good collection of forms, controls and a good report writer would be ideal. I have looked at web based stuff like Ruby on Rails, but I think a webserver for our 5 pc network is overkill. I don’t mind running a proper database on our Ubuntu 9.10 server. I may have exposed a few prejudices above but my mind is open. Any thoughts?

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• What does ~ in the beginning of an URL in asp.net exactly do ?

  - by MarceloRamires

  I am editing a certain website which before used the port 80 (default) that was not required at the url (because it's default..) But the port had (for technical reasons) to be changed, and now it has to be informed. I can access the main page through ip:port\page like this: 1.2.3.4:81\page.aspx Every link in the website is composed like this: <asp:HyperLink runat="server" Text="random" NavigateUrl="~/fdr/whatever.aspx" /> And whenever I click on a link, the page doesn't load, but the URL is composed on the URL bar of the browser, then I simply add ":80" after the IP in the URL and it works. Due to the existance of querystrings (in other words, for already having access to the URL) I before thought that '~' in the beginning of a URL in a link was saying "keep in the same website, just change to this webpage in this folder", but if the port vanishes, I assume now that the address is requested (probably to IIS) the location of the current website. I want to know then (instead of having to add the port to each link in my website) how do I set up whoever is requested by the ~ in the link to add the port somehow. How do I do that?

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• @WebServices as @Stateless session bean in ejb jar

  - by kislo_metal

  Hi! Scenario: Creating some web service as @Stateless bean, package it as ejb jar. Result - can`t access to wsdl file. Goal: I want to use @WebServices as @Stateless session using ejb jar packaging with accessible wsdl file form web. Web service: @Stateless @WebService(serviceName = "ws.isp.SecurityService", wsdlLocation = "META-INF/wsdl/SecurityService.wsdl") public class SecurityService{ @EJB private Kerberos factory; @EJB private UsersServiceBean uService; public SecurityService() { } @WebMethod @WebResult(name = "SimpleResponse") public SimpleResponse LogOut( @WebParam(name = "sessionUUID", targetNamespace = "https://secure.co.ua/ws/") String sessionUUID ) { SimpleResponse resp = new SimpleResponse(); try{ factory.removeSession(sessionUUID); resp.setError(WSErrorCodes.SUCCESS); }catch (Exception e){ e.printStackTrace(); resp.setError(WSErrorCodes.UNRELOSVED_ERROR); } return resp; } @WebMethod public MySession logIn( @WebParam(name = "username", targetNamespace = "https://secure.co.ua/ws/") String username, @WebParam(name = "password", targetNamespace = "https://secure.co.ua/ws/") String password){ MySession result = new MySession(); try { UserSession us = factory.creatSession(uService.getUser(username, password).getId()); result.setSessionID(us.getSessionUUID().toString()); result.setError(WSErrorCodes.SUCCESS); } catch (NullPointerException e){ e.printStackTrace(); result.setError(WSErrorCodes.UNRELOSVED_USER); } catch (Exception e){ e.printStackTrace(); result.setError(WSErrorCodes.UNRELOSVED_ERROR); } return result; } } In this case I getting Invalid wsdl request http://192.168.44.48:8181/ws.isp.SecurityService/SecurityService when I try to access to wsdl and if do not use description of wsdlLocation I getting blank page. Web service as it self working good. Q1: what is the rule of describing wsdl file location for web services as stateless in ejb jar. Q2: is it possible to generate wsdl file during maven packaging ? Q3: how to generate wsdl file for web service where we have such annotation as @Stateless and @EJB (currently I can generate it only by commenting those annotations) environment: mave 2, ejb 3.1, glassfish v3, jax-ws 2.x Thank you!

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• Using the Search API with Sharepoint Foundation 2010 - 0 results

  - by MB

  I am a sharepoint newbee and am having trouble getting any search results to return using the search API in Sharepoint 2010 Foundation. Here are the steps I have taken so far. The Service Sharepoint Foundation Search v4 is running and logged in as Local Service Under Team Site - Site Settings - Search and Offline Availability, Indexing Site Content is enabled. Running the PowerShell script Get-SPSearchServiceInstance returns TypeName : SharePoint Foundation Search Description : Search index file on the search server Id : 91e01ce1-016e-44e0-a938-035d37613b70 Server : SPServer Name=V-SP2010 Service : SPSearchService Name=SPSearch4 IndexLocation : C:\Program Files\Common Files\Microsoft Shared\Web Server Exten sions\14\Data\Applications ProxyType : Default Status : Online When I do a search using the search textbox on the team site I get a results as I would expect. Now, when I try to duplicate the search results using the Search API I either receive an error or 0 results. Here is some sample code: using Microsoft.SharePoint.Search.Query; using (var site = new SPSite(_sharepointUrl, token)) { // FullTextSqlQuery fullTextSqlQuery = new FullTextSqlQuery(site) { QueryText = String.Format("SELECT Title, SiteName, Path FROM Scope() WHERE \"scope\"='All Sites' AND CONTAINS('\"{0}\"')", searchPhrase), //QueryText = String.Format("SELECT Title, SiteName, Path FROM Scope()", searchPhrase), TrimDuplicates = true, StartRow = 0, RowLimit = 200, ResultTypes = ResultType.RelevantResults //IgnoreAllNoiseQuery = false }; ResultTableCollection resultTableCollection = fullTextSqlQuery.Execute(); ResultTable result = resultTableCollection[ResultType.RelevantResults]; DataTable tbl = new DataTable(); tbl.Load(result, LoadOption.OverwriteChanges); } When the scope is set to All Sites I retrieve an error about the search scope not being available. Other search just return 0 results. Any ideas about what I am doing wrong?

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• nginx error: (99: Cannot assign requested address)

  - by k-g-f

  I am running Ubuntu Hardy 8.04 and nginx 0.7.65, and when I try starting my nginx server: $ sudo /etc/init.d/nginx start I get the following error: Starting nginx: [emerg]: bind() to IP failed (99: Cannot assign requested address) where "IP" is a placeholder for my IP address. Does anybody know why that error might be happening? This is running on EC2. My nginx.conf file looks like this: user www-data www-data; worker_processes 4; events { worker_connections 1024; } http { include mime.types; default_type application/octet-stream; access_log /usr/local/nginx/logs/access.log; sendfile on; tcp_nopush on; tcp_nodelay on; keepalive_timeout 3; gzip on; gzip_comp_level 2; gzip_proxied any; gzip_types text/plain text/css application/x-javascript text/xml application/xml application/xml+rss text/javascript; include /usr/local/nginx/sites-enabled/*; } and my /usr/local/nginx/sites-enabled/example.com looks like: server { listen IP:80; server_name example.com; rewrite ^/(.*) https://example.com/$1 permanent; } server { listen IP:443 default ssl; ssl on; ssl_certificate /etc/ssl/certs/myssl.crt; ssl_certificate_key /etc/ssl/private/myssl.key; ssl_protocols SSLv3 TLSv1; ssl_ciphers ALL:!ADH:RC4+RSA:+HIGH:+MEDIUM:-LOW:-SSLv2:-EXP; server_name example.com; access_log /home/example/example.com/log/access.log; error_log /home/example/example.com/log/error.log; }

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• How to make images hosted on Amazon S3 less public but not completely private?

  - by Jay Godse

  I fired up a sample application that uses Amazon S3 for image hosting. I managed to coax it into working. The application is hosted at github.com. The application lets you create users with a profile photo. When you upload the photo, the web application stores it on Amazon S3 instead of your local file system. (Very important if you host at heroku.com) However, when I did a "view source" in the browser of the page I noticed that the URL of the picture was an Amazon S3 URL in the S3 bucket that I assigned to the app. I cut & pasted the URL and was able to view the picture in the same browser, and in in another browser in which I had no open sessions to my web app or to Amazon S3. Is there any way that I could restrict access to that URL (and image) so that it is accessible only to browsers that are logged into my applications? Most of the information I found about Amazon ACLs only talk about access for only the owner or to groups of users authenticated with Amazon or AmazonS3, or to everybody anonymously.

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• Problem facing to run ruport from other machine

  - by shabi

  I am using SQL Server 2008 Reporting Services and set mode remotely. All is going fine and reports running on my machine. I am not using report viewer control, but switch to browser. Problem is that when I access the report from any other system in browser by providing required url. I m getting the following premission error: Server Error in /ReportServer Application. Access is denied: Description: An error is occured while accessing the resources required to serve for this request. You might have not premission to view the requested resources. Error message: 401.3 : You dont have the premission to view this directory or page using the creditinals you supplied. I have go through all step of this article "http://msdn.microsoft.com/en-us/library/ms365170.aspx" and set remotly premession but after all changes no success and getting same error. Please some one can tell me or provide step list, that how can I set the premession? that the report can run from other machine. Quick and detail response will

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• Apache Tuscany 1.6 How do you set the JMS Binding Delivery Mode to NON_PERSISTENT?

  - by Robert Greiner

  I am using Tuscany 1.6 and am trying to set the Delivery Mode JMS Binding to NON_PERSISTENT. I've tried using uri="jms:MyService?deliveryMode=1" (which is what the spec (PDF) says to do) but, I ended up getting the following exception: Unknown token deliveryMode=1 I also tried <headers JMSDeliveryMode="NON_PERSISTENT"/>, although I did not get an exception the messages still got delivered as PERSISTENT. This is the format for the URI jms:<jms-dest>? connectionFactoryName=<Connection-Factory-Name> & destinationType={queue|topic} deliveryMode=<Delivery-Mode> & timeToLive=<Time-To-Live> & priority=<Priority> & <User-Property>=<User-Property-Value> & … This is the example I am using <composite xmlns="http://www.osoa.org/xmlns/sca/1.0" name="MyValueComposite"> <service name="MyValueService"> <interface.java interface="services.myvalue.MyValueService"/> <binding.jms uri="jms:MyValueServiceQueue?activationSpecName=MyValueServiceAS&... "/> </service> <reference name="StockQuoteService"> <interface.java interface="services.stockquote.StockQuoteService"/> <binding.jms uri="jms:StockQuoteServiceQueue?connectionFactoryName=StockQuoteServiceQCF&deliveryMode=1&... "/> </reference> </composite>

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• restrict script inside iframe to run only within pages of same top-level domain?

  - by Justin Grant

  I'd like to enforce a requirement that client script inside a page (which in turn is loaded inside an iframe of another page) will only run when the parent page is on the same top-level domain as the framed page (although it may be on another hostname in that domain). Is this do-able? I assume that the easy solution of looking at top.location.host won't be available due to cross-site scripting limitations, but I'm wondering if other javascript hackery could suffice. Constraints on any potential solution inculde: I need to be able to run XmlHttpRequest calls inside the child page, and I need to validate that the hostname is in the same domain before I make those calls. (this makes a document.domain solution challenging because AFAIK setting document.domain disables the ability to make XmlHttpRequest calls. I can control client-side script and HTML on both parent or child (and I can create new pages if needed), but I can't make any server-side code changes. I can't simulate the above via server-side calls or proxies, because the child page's hostname uses a forms auth system with hostname-scoped cookies that I can't get access to from the parent page since it's on a different hostname. I don't have enough control over the child-frame site to be able to put both sites behind the same reverse-proxy or load-balancer (which would enable me to put both sites on the same hostname). I don't actually need to access any UI inside the IFrame-- the iframe is invisible and I'm only using it to run javascript within the security context of a site on a different hostname from the parent page. So at this point I'm stumped. Got any ideas? I want to make sure I'm not overlooking an easy solution before giving up.

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• .NET How would I build a DAL to meet my requirments?

  - by Jonno

  Assuming that I must deploy an asp.net app over the following 3 servers: 1) DB - not public 2) 'middle' - not public 3) Web server - public I am not allowed to connect from the web server to the DB directly. I must pass through 'middle' - this is purely to slow down an attacker if they breached the web server. All db access is via stored procedures. No table access. I simply want to provide the web server with a ado dataset (I know many will dislike this, but this is the requirement). Using asmx web services - it works, but XML serialisation is slow and it's an extra set of code to maintain and deploy. Using a ssh/vpn tunnel so that the one connects to the db 'via' the middle server, seems to remove any possible benefit of maintaining 'middle'. Using WCF binary/tcp removes the XML problem, but still there is extra code. Is there an approach that provides the ease of ssh/vpn, but the potential benefit of having the dal on the middle server? Many thanks.

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• Creating an SQL variable character column > 255 characters supporting multiple databases

  - by Piers

  I have an application that stores data through an ODBC data source of the user's choosing. So far it has worked well on a range of database systems (e.g. JET, Oracle, SQL Server), as the SQL syntax is fairly simple. Now I am running into a problem where I need to store more than 255 characters in my strings. Previously I created the table using column type VARCHAR (255). Now if I try to create a table using, e.g. VARCHAR (512) then it falls over on Access databases. I know that I can use the MEMO type for Access, but this is non-standard SQL and will thus likely fail on other database systems (e.g. Oracle). Is there any widely supported SQL standard for creating text columns wider than 255 characters, or do I need to find another solution? The alternatives seem to me to be: 1) Profile the database system and customise the SQL CREATE TABLE command based on the database system. I don't like this as it defeats the purpose of using ODBC. 2) Add extra columns of 255 chars as required (e.g. LONGSTRING1, LONGSTRING2, ...) and concatenate after reading. I don't like this because it means the number of columns can vary between tables and it complicates read/write. Are there any other viable alternatives to these two options? Or is it possible to have an SQL compliant CREATE TABLE command supported by the majority of database vendors, that supports strings longer than 255 chars?

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• Unable to render php files in browser

  - by p1

  Hello, I am very new to php, and I am trying to develop a facebook application using php. I am using Joyent as my hosting platform. Currently, I am trying to do some simple scripts in php and then build on them. However I am unable to see any php files being rendered properly in my application. For eg: I have a simple script called phpinfo.php: If I execute this on terminal like php phpinfo.php , I can see all the configurations. However if I try to access the same file as http://xxxxxx.facebook.joyent.us/phpinfo.php, I get : Internal Server Error The server encountered an internal error or misconfiguration and was unable to complete your request. Even if I rename this file to index.php its still the same. However I am able to access other html files [index.html] on the same location . These are some of my php settings: These are some of the settings: [fbkusoni:~/web/public] aafhe7vh$ php phpinfo.php | grep On allow_url_fopen = On = On auto_globals_jit = On = On enable_dl = On = On file_uploads = On = On ignore_repeated_errors = On = On ignore_repeated_source = On = On implicit_flush = On = On log_errors = On = On register_argc_argv = On = On report_memleaks = On = On y2k_compliance = On = On Multibyte regex (oniguruma) backtrack check = On mysql.allow_persistent = On = On session.bug_compat_warn = On = On session.use_cookies = On = On suhosin.cookie.cryptdocroot = On = On suhosin.cookie.cryptua = On = On suhosin.mt_srand.ignore = On = On suhosin.protectkey = On = On suhosin.server.encode = On = On suhosin.server.strip = On = On suhosin.session.cryptdocroot = On = On suhosin.session.cryptua = On = On suhosin.session.encrypt = On = On suhosin.srand.ignore = On = On suhosin.stealth = On = On The answer might be very naive, but I am just trying to get started and looking for any suggestions regarding this and also using Joyent and cakephp to develop facebook applications. Thanks.

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• Return a list of imported Python modules used in a script?

  - by Jono Bacon

  Hi All, I am writing a program that categorizes a list of Python files by which modules they import. As such I need to scan the collection of .py files ad return a list of which modules they import. As an example, if one of the files I import has the following lines: import os import sys, gtk I would like it to return: ["os", "sys", "gtk"] I played with modulefinder and wrote: from modulefinder import ModuleFinder finder = ModuleFinder() finder.run_script('testscript.py') print 'Loaded modules:' for name, mod in finder.modules.iteritems(): print '%s ' % name, but this returns more than just the modules used in the script. As an example in a script which merely has: import os print os.getenv('USERNAME') The modules returned from the ModuleFinder script return: tokenize heapq __future__ copy_reg sre_compile _collections cStringIO _sre functools random cPickle __builtin__ subprocess cmd gc __main__ operator array select _heapq _threading_local abc _bisect posixpath _random os2emxpath tempfile errno pprint binascii token sre_constants re _abcoll collections ntpath threading opcode _struct _warnings math shlex fcntl genericpath stat string warnings UserDict inspect repr struct sys pwd imp getopt readline copy bdb types strop _functools keyword thread StringIO bisect pickle signal traceback difflib marshal linecache itertools dummy_thread posix doctest unittest time sre_parse os pdb dis ...whereas I just want it to return 'os', as that was the module used in the script. Can anyone help me achieve this?

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• Extensionless URLs in IIS 6

  - by Jason Marsell

  My client has asked me to build a personalized URL system so that they can send out really short URLs in postcards to customers like this: www.client.com/JasonSmith03 www.client.com/TonyAdams With these URLs, I need IIS 6 to trap the incoming request and pass that “JasonSmith03” token to my database to determine which landing page to redirect them to. I’d love to use an HttpHandler or HttpModule but they both look like they require an file extension (.aspx) in the URL. Wildcard mapping will chew up every incoming request and that’s ridiculous. ISAPI filters are just text routing files, so I can’t employ logic to call the database. According to Scott Guthrie, this would be cake if I had IIS 7, but I don’t. Can this be done using MVC? I’ve been working with MVP for the last few years, so I haven’t done any MVC and routing. I thought I remembered that MVC has the ability to use REST-style extensionless URLs. I’d be more than happy to have these personalized URLs land on a site that’s built in MVC, if it will work. Thank you!

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