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• How to deal with arrays of data in cookies

  - by peter

  Hi all, I want to store data in a cookie and I am not exactly sure how I will go about it. The data is the UserName, and Password values for the users that are logging into a website, e.g. sometime like this UserName = bob, Password=Passw0rd1 UserName = harry, Password=BLANK UserName = george, Password=R0jjd6s What this means is that bob and george logged into the site and chose to have their password remembered, but harry chose for his password not to be remembered. So on the login dialog a dropdown will be present with all the usernames in it 'bob', 'harry', 'george'. If they select the username bob the password will automatically be filled in, etc. So how does that information need to be stored in the cookie? Like it is above, or does it have to be, UserName1 = bob, Password1=Passw0rd1 UserName2 = harry, Password2=BLANK UserName3 = george, Password3=R0jjd6s Are the username and password values actually stored in the same cookie, or is each piece of data separate? Any information would be good.

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• java enterprise project

  - by darko petreski

  Hi All, All the time we are hearing that java is enterprise. We have read many books about jpa, entity beans and other stuff. All this books explain this technology with some dummy examples. I have not seen a book that explains real problems with enterprise beans, java clients and security! I mean real book not some imaginated stupid examples . Is there any book that describes completely some enterprise system, Its architecture, communication, security, of course the client that uses the distributed components ? I need a book that will cover the flowing: server side components (ejb, jpa) client side java desktop application security (authentication and authorization) web services with complete authentication clustering (we can find for all of this a book, but there is no book that covers all this things in one piece. Also all the books are with dummy samples.) Or may be some project that is documented. Regards, Darko

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• Is there such a thing as an "elisp bundle" for TextMate?

  - by Vivi

  I started using Code Collector Pro to organise and save my Emacs codes, and this software requires TextMate bundles for syntax highlighting. They have a lisp bundle, but not an elisp bundle, at least not that I can see. I would think that the syntax highlighting would work under the lisp bundle, but for some reason it isn't happening. I have never even seen any lisp code with syntax highlighting, so it is possible that the thing is working and I don't know, but I honestly don't think so, because the ;; before a line seems to me to be a comment thing, so anything after that should be in the color defined for comments which in my case is green. Here is a picture of my code collector screen with a piece of code written by huaiyuan answering my question posted here: Is this looking as it should or is there something wrong? Back to the initial question: is there a textmate bundle for elisp or a bundle like the ones from textmate I can download to get syntax highlighting?

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• Manipulate COBOL data structure

  - by Morewinder

  Hello. I would like informations to manipulate tables. I encounter few problem with a piece of cobol code like below: 01 TABLE-1. 05 STRUCT-1 OCCURS 25 TIMES. 10 VALUE-1 PIC AAA. 10 VALUE-2 PIC 9(5)V999. 05 NUMBER-OF-OCCURS PIC 99. How do you update values? (update a VALUE-2 when you know a VALUE-1) How look up a value and add new one? Thanks a lot!

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• Keyboard Simulation not working with Keyboard hook for modifier keys

  - by Eduardo Wada

  I have a piece of software that is being used to simulate a certain device on a touchscreen, this device already runs an application that receives keyboard input from the device. My software (reffered to as simulator) displays a virtual keyboard and runs the application. Thus, the simulator sends keys with input simulator: http://inputsimulator.codeplex.com/ And the applciation listens to keys with the following keyboard hook: https://svn.cyberduck.io/tags/release-4-1/source/ch/cyberduck/core/GlobalKeyboardHook.cs My problem is, what some keys from the device's hardware actually do is to sent a key combination (ex: left-alt + 1) to the application and a weird scenario is occurring: The application listens to normal keyboard inputs The simulator sends keys to other applications (ie: visual studio responds to the keys sent when debugging) The simulator can send single keys to the application (I can type) The simulator CANNOT send key combinations to the application (alt+1 is received as just 1 in the application) This started happenning when we imported the application's dll into the same process from the simulator. Could there be any reason why I can't simulate key combinations for a hook in the same process? Is there any easy fix for this?

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• Gplv3 and consulting

  - by Mjgp2

  If you are doing a one off piece of work as a consultant, for which the client receives only binaries, can you use gpl3 software ? You are working on behalf of the client and not distributing it. From a standard gpl FAQ: Q: I am an OXID partner/reseller/consultant and I occasionally do one-time OXID eShop Community Edition customization work for clients which are derived from OXID modules. These customizations are used only for the client. Do I need to make these changes publicly available? A: No, unless your client redistributes the code in which case the client must make it available to its licensees. Is this implying it is ok?

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• Preventing LDAP injection

  - by Matias

  I am working on my first desktop app that queries LDAP. I'm working in C under unix and using opends, and I'm new to LDAP. After woking a while on that I noticed that the user could be able to alter the LDAP query by injecting malicious code. I'd like to know which sanitizing techniques are known, not only for C/unix development but in more general terms, i.e., web development etc. I thought that escaping equals and semicolons would be enough, but not sure. Here is a little piece of code so I can make clearer the question: String ldapSearchQuery = "(cn=" + $userName + ")"; System.out.println(ldapSearchQuery); Obviously I do need to sanitize $userName, as stated in this OWASP ARTICLE

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• Retrieve Gmail using Ruby

  - by Kartik Rao

  I need to retrieve emails from my Gmail account using Ruby on Rails. I'm currently using this piece of code, but it gives me a timeout error everytime. require 'net/pop' pop = Net::POP3.new 'mail.isp.com' pop.start '[email protected]', 'password' if pop.mails.empty? puts "No mail." else puts "You have #{pop.mails.length} new messages." puts "Downloading..." pop.mails.each_with_index do|m,i| File.open( "inbox/#{i}", 'w+' ) do|f| f.write m.pop end m.delete end end This is the error I recieve /usr/lib/ruby/1.8/timeout.rb:60:in `new': execution expired (Timeout::Error) from /usr/lib/ruby/1.8/net/protocol.rb:206:in `old_open' from /usr/lib/ruby/1.8/net/protocol.rb:206:in `old_open' from /usr/lib/ruby/1.8/net/pop.rb:438:in `do_start' from /usr/lib/ruby/1.8/net/pop.rb:432:in `start' from script/mail.rb:4 Any help will be appreciated!

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• .NET and P2P - writing a P2P messenger

  - by brovar

  Hi there, Does anyone have any advice how to write such app? Or maybe knows some nice tutorial? I would like to use System.Net.PeerToPeer namespace, but everything I can find about it is MSDN which I can't read without getting mad. Or maybe using "old-school" TCP/IP would more efficient? I will appreciate every piece of advice. Every sample code I will shower with gold ;) And please, don't send me back to Google for I have searched for a long time for sth useful - maybe inaccurately but time is running out and I really need some help.

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• 32bit to 64bit inline assembly porting

  - by Simone Margaritelli

  I have a piece of C++ code (compiled with g++ under a GNU/Linux environment) that load a function pointer (how it does that doesn't matter), pushes some arguments onto the stack with some inline assembly and then calls that function, the code is like : unsigned long stack[] = { 1, 23, 33, 43 }; /* save all the registers and the stack pointer */ unsigned long esp; asm __volatile__ ( "pusha" ); asm __volatile__ ( "mov %%esp, %0" :"=m" (esp)); for( i = 0; i < sizeof(stack); i++ ){ unsigned long val = stack[i]; asm __volatile__ ( "push %0" :: "m"(val) ); } unsigned long ret = function_pointer(); /* restore registers and stack pointer */ asm __volatile__ ( "mov %0, %%esp" :: "m" (esp) ); asm __volatile__ ( "popa" ); I'd like to add some sort of #ifdef _LP64 // 64bit inline assembly #else // 32bit version as above example #endif But i don't know inline assembly for 64bit machines, anyone could help me? Thanks

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• Windows/.NET Load Distribution & Balancing

  - by andrewbadera

  Hi all, Is there a vetted Windows-friendly, or even .NET-native, load-distributing/load-balancing utility out there along the lines of HA Proxy? We have a .NET stack product, and the one piece that we step out of the stack is for load-balancing. We need something with configurable rules for distribution -- perhaps subdomain-driven -- that NLB alone doesn't seem to offer. If it integrates directly with .NET, or offers an exposed API callable by webservices, so much the better! Thanks in advance! Clarification: we need to logically part over boxes. This is not just a cluster/failover/replication scenario.

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• Are there gotchas using varargs with reference parameters

  - by Roddy

  I have this piece of code (summarized)... AnsiString working(AnsiString format,...) { va_list argptr; AnsiString buff; va_start(argptr, format); buff.vprintf(format.c_str(), argptr); va_end(argptr); return buff; } And, on the basis that pass by reference is preferred where possible, I changed it thusly. AnsiString broken(const AnsiString &format,...) { ... the rest, totally identical ... } My calling code is like this:- AnsiString s1, s2; s1 = working("Hello %s", "World"); s2 = broken("Hello %s", "World"); But, s1 contains "Hello World", while s2 has "Hello (null)". I think this is due to the way va_start works, but I'm not exactly sure what's going on.

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• What is "Virtual Size" in sysinternals process explorer

  - by robert

  Hi My application runs for few hours, There is no increase in any value ( vmsize, memory) of Task Manager. But after few hours i get out of memory errors. In sysinternals i see that "Virtual Size" is contineously increasing, and when it reach around 2 GB i start getting memory errors. So what kind of memory leak is that ? How can i demonstrate it with a code ? Is it possible to reproduce same thing with any piece of code where none of the memory value increase but only the Virtual Size in sysinternsl process explorer increase ? thanks for any suggestions

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• Invalid receiver type 'NSUInteger'

  - by CJ

  I have a Core Data entity whose header file looks like this: @interface MyEntity : NSManagedObject { } @property (nonatomic, retain) NSNumber * index; @end And it's implementation file looks like this: @implementation MyEntity @dynamic index; @end Now, I have a piece of code that looks like this: NSArray* selectedObects = [myEntityArrayController selectedObjects]; NSUInteger theIndex = [[[selectedObects objectAtIndex:0] index] unsignedIntegerValue]; The 'myEntityArrayController' object is a NSArrayController which manages all entities of MyEntity. This code executes correctly, however XCode always gives the warning "Invalid receiver type 'NSUInteger'" for the last line of code. For some reason, XCode thinks that the index method returns a NSUInteger. I'm not sure why it thinks this, because 'objectAtIndex' returns an object of type 'id'. I've cleaned the project several times, and these warnings have hung around for a while. Any suggestions are appreciated.

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• Large file upload into WSS v3

  - by Rubens Farias

  I'd built an WSSv3 application which upload files in small chunks; when every data piece arrives, I temporarly keep it into a SQL 2005 image data type field for performance reasons**. Problem come when upload ends; I need to move data from my SQL Server to Sharepoint Document Library through WSSv3 object model. Right now, I can think two approaches: SPFileCollection.Add(string, (byte[])reader[0]); // OutOfMemoryException and SPFile file = folder.Files.Add("filename", new byte[]{ }); using(Stream stream = file.OpenBinaryStream()) { // ... init vars and stuff ... while ((bytes = reader.GetBytes(0, offset, buffer, 0, BUFFER_SIZE)) 0) { stream.Write(buffer, 0, (int)bytes); // Timeout issues } file.SaveBinary(stream); } Are there any other way to complete successfully this task? ** Performance reasons: if you tries to write every chunk directly at Sharepoint, you'll note a performance degradation as file grows up (100Mb).

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• Is there an HTML browser rendering engine for Ruby?

  - by Jose

  Given a URL, I would like to be able to render the returned HTML to know width and height for each div, fonts' size for each piece of text, color of each element, position of each element on screen, etc. A possible approach could be traversing the DOM tree with Hpricot and checking CSS style by parsing the associated stylesheet using css_parser gem. But this would not consider default styles, inheritance, floats, etc. In Java there's Cobra, a Java Web Renderer, which is able to render a web page and query attributes like width, font size, etc. for each fragment. I could use Cobra with JRuby or similar solutions, but prefer a Ruby native tool. Is there any library like this for Ruby?

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• JavaScript: 'textarea.value' not working in IE?

  - by pete

  Hi! A few hours ago, I was instructed how to style a specific textarea with JS. The following piece of code (thanks again, Mario Menger) works like a charm in Firefox but unfortunately nothing happens in Internet Explorer (7 tested only so far). var foo = document.getElementById('HCB_textarea'); var defaultText = 'Your message here'; foo.value = defaultText; foo.style.color = '#888'; foo.onfocus = function(){ foo.style.color = '#000'; if ( foo.value == defaultText ) { foo.value = ''; } }; foo.onblur = function(){ foo.style.color = '#888'; if ( foo.value == '' ) { foo.value = defaultText; } }; I've already tried to replace 'value' by 'innerHTML' (for IE only) but to no effect. Any suggestions? TIA

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• Implement a RSA algorithm in Java

  - by Robin Monjo

  Hello everyone. I want to implement a RSA algorithm to encrypt an image (byte[]). To generate my two keys I used this piece of code : KeyPairGenerator keygen = KeyPairGenerator.getInstance("RSA"); keygen.initialize(512); keyPair = keygen.generateKeyPair(); Once public and private key are generated, I would like to show them to the user so he can distribute the public key and use the private key to decode. How can I get back those key? Using keygen.getPrivateKey() and keygen.getPublicKey() give me all the information of the RSA algorithm, not only the keys I need. Thanks

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• Cross Browser Addons

  - by Paul Tarjan

  I'm looking to make a browser add-on as widely and easily distributable as possible. Is there a set of wrapper addons for all the major browsers that will let me write one piece of code and it can execute in any of the environments? I don't need anything fancy, just DOM and some ajax stuff. Something along the lines of greasemonkey for IE, FF, and Chrome would be nice. In the same vein, is there a way to link to my script so that it prompts for an install of greasemonkey (if it isn't installed) and then leads the script?

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• Use ModalPopupExtender without having to set TargetControlID?

  - by Monty

  I'd like to use a modalpopupextender in my asp.net page to show a sub form. But it only has to show on specific conditions. Those conditions are determined in a piece of javascript code. So, most importantly, the modal popup doesn't have to show on a button click. However, if I leave the property TargetControlID empty I get the following exception: The TargetControlID of 'ModalPopupExtender1' is not valid. The value cannot be null or empty. Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. Exception Details: System.InvalidOperationException: The TargetControlID of 'ModalPopupExtender1' is not valid. The value cannot be null or empty. Do I just have the TargetControlID to an hidden button or is there aslo a more decent option? Thanks.

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• Lightweight .NET web development?

  - by Breck Fresen

  Fellow stack overflowers, I'm currently working on a project that has a sizable amount of both client and web code. The client code is written in C# and the web piece is written in PHP. Maintaining consistency between the two worlds is becoming cumbersome, and I want consolidate the web code to .Net. The issue is that I hate web development in ASP.Net Web Forms. I want something as raw as PHP, just using C# instead. I've read a little about ASP.Net MVC, but it looks like it abstracts too much of the request logic for my liking. Does anyone know of a lightweight way to allow C# + .Net to handle web requests? Should I be looking more closely at MVC? Thanks in advance, -- Breck

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• MySqlDateTime to System.DateTime conversion

  - by bowsa

  Ok I'm very new to databases and C# in general, but I'm using a piece of code that exports dataset data to an Excel file, and its taking issue with the date/time format. I'm using the MySQL connector so the rowtype is MySql.Data.Types.MySqlDateTime. Is there any quick way to convert it into System.DateTime so I can slot it straight into the case statement? Here's a link to the code I used, I copied it verbatim so I've not copied and pasted it here. It throws a MySql.Data.Types.MySqlDateTime not handled exception: Code Project Thanks in advance for any help.

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• Question about XML deserialization in .net

  - by ryudice

  Hi, I'm trying to deserialize an XML that comes from a web service but I do not know how to tell the serializer how to handlke this piece of xml: <Movimientos> <Movimientos> <NOM_ASOC>pI22E7P30KWB9KeUnI+JlMRBr7biS0JOJKo1JLJCy2ucI7n3MTFWkY5DhHyoPrWs</NOM_ASOC> <FEC1>RZq60KwjWAYPG269X4r9lRZrjbQo8eRqIOmE8qa5p/0=</FEC1> <IDENT_CLIE>IYbofEiD+wOCJ+ujYTUxgsWJTnGfVU+jcQyhzgQralM=</IDENT_CLIE> </Movimientos> <Movimientos> As you can see, the child tag uses the same tag as its parent, I suppose this is wrong however the webservice is provided by an external company and that wont change it, is there any way or any library to tidy up XML or how can I use an attribute on my class so that the serializer gets it right? thanks for any help.

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• Java System.in issue

  - by theo

  `public static void main(String[] args) { Scanner sc = new Scanner(System.in); while (sc.hasNext()) { if (sc.next().equals("exit")){ System.out.println("EXITING"); System.exit(0); } else { System.out.println("IM STILL WORKING ok?"); } } } }` So here is a piece of code i was writing the other day to try and figure sth out (doesn't really matter what). The result of executing this code is : eIM STILL WORKING ok? eIM STILL WORKING ok? exit IM STILL WORKING ok? exit EXITING Can somebody kindly explain why this has happened?

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• Canonical Link as a Way of Fighting Scrapers?

  - by James D

  Hi, Let's say several external sites are scraping/harvesting your content and posting it as their own. Let's also say that you maintain a single unique/permanent URL for each piece of content, so that content aliasing (on your site) is never an issue. Is there any value from an SEO perspective to including a canonical link in your header anyway, such that when your site is "scraped", the canonical indication is injected into whatever site is stealing your content (assuming they harvest the raw HTML rather than going in through RSS etc.)? I've heard different things about the behavior of cross-site canonical links, from "they're ignored" to "behavior undefined" to "it can't hurt" to "sure that's exactly what canonical is intended for". My impression was that canonical was a good way of dealing with intra-site but not necessarily inter-site aliasing. Thanks~

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