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• Is Outlook-friendly HTML code different from code for a conventional web page?

  - by justSteve

  My web-app has to deliver db-generated content by email. The HTML need not include javascript but _does have to include images and CSS. It's a safe bet that most users will be viewing this in Outlook. Are general guidelines different for html destined for email vs. IE?

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• jQuery uses (new Function("return " + data))(); instead of eval(data); to parse JSON, why?

  - by Luca Matteis

  This link shows you that jQuery uses (new Function("return " + data))(); for older browsers, to parse a JSON string instead of eval(). What are the benefits of this? What if the JSON string isn't safe?

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• what is the max width of a facebook page?

  - by jared

  i read it was going to be changed to 520px in early 2010, but i keep seeing pages that are new that are the older 760px width - is it safe to build at the wider width still or should we be building at 520px?

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• Program to change/obfuscate all hashes (MD5/SHA1) in a directory tree?

  - by anon

  Hi fellas, A) Are there any FOSS programs out there that can manage to hashchange all files in a directory tree? B) Failing that, what methods could be used to develop this capability in a (crappy) self-written program without requiring the program to be sophisticated and content-aware? Is there any (roughly) universally safe location within a file (for example, around EOF?) where on could one simply append/add psuedorandom data so the resulting hash is different? Is there a better/more elegant solution? Muchos gracias

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• ConcurrenctBag(Of MyType) Vs List(Of MyType)

  - by Ben

  What is the advantage of using a ConcurrentBag(Of MyType) against just using a List(Of MyType)? The MSDN page on the CB (http://msdn.microsoft.com/en-us/library/dd381779(v=VS.100).aspx) states that ConcurrentBag(Of T) is a thread-safe bag implementation, optimized for scenarios where the same thread will be both producing and consuming data stored in the bag So what is the advantage? I can understand the advantage of the other collection types in the Concurrency namespace, but this one puzzled me. Thanks.

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• Are C++ enums signed or unsigned?

  - by Matt

  Are C++ enums signed or unsigned? And by extension is it safe to validate an input by checking that it is <= your max value, and leave out = your min value (assuming you started at 0 and incremented by 1)?

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• Are cookies enough for storing login data?

  - by jpjp

  I am reading the Head First PHP/Mysql book and they say to store both the user's username, email into cookies and sessions. Is it safe to assume that everyone nowadays accepts cookies? Or should I store both in sessions and cookies? I am not storing any sensitive data in cookies such as password, etc.

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• SQL Server stored procedure in multi threaded environments

  - by Shamika

  Hi, I need to execute some Sql server stored procs in a thread safe manner. At the moment I'm using software locks (C# locks) to achieve this but wonder what kind of features provided by the Sql server itself to achieve thread safety. It seems to be there are some table and row locking features built in to Sql server. Also from a performance perspective what is best approach? Software locks? Or Sql Server built in locks? Thanks, Shamika

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• js function to get filename from url

  - by Blankman

  Hi, I have a url like http://www.example.com/blah/th.html I need a javascript function to give me the 'th' value from that. All my urls have the same format (2 letter filenames, with .html extension). I want it to be a safe function, so if someone passes in an empty url it doesn't break. I know how to check for length, but I should be checking for null to right?

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• locking on dictionary of structs not working between 2 threads?

  - by Rancur3p1c

  C#, .Net2.0, XP, Zen I have 2 threads accessing a shared dictionary of structures, each thread via an event. At the beginning of the event I lock the dictionary, remove some structures, and exit the lock+event. Yet somehow the 2nd thread|event is finding some of the removed structures. Conceptually I must be doing something wrong for this to be happening? I thought locking was supposed to make it thread safe?

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• PHP Multiple form tokens

  - by Juddling

  I understand the idea of generating a form token and storing it in a session, and also putting it as a hidden input in my forms. But how could I make this work if I have pages with multiple forms, is it still safe to use the same token for each form? And I still feel weary about bots and stuff on my website, can these form tokens really safely replace CAPTCHAs?

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• XmlDocument, XmlResolver and www.w3.org

  - by David Rutten

  One of my users had a single error while opening a file (I'm using standard xml 1.0): The remote name could not be resolved: 'www.w3.org' I found a post here in StackOverflow that deals with this and it suggest setting the XmlResolver property to null. I've tried this, and all my documents still seem to load fine. However, the last thing I want is to break the file-reading mechanism of my app, so is it actually safe to disable the resolver?

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• Which key to bind to avoid conflict with native browser shortcuts

  - by Savageman

  Hi, I didn't see the question yet. Every browser has different native keyboard short-cuts. Did someone already tried to figure out which one free / safe to use if we want to add some spicy stuff to our web-app? Thanks in advance.

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• How to authenticate a user/application combination in Oracle?

  - by Martin R-L

  I'd like to authenticate the user/application combination, not only the user. The scenario is that we've built an app that guides the user to safe updates of some data. If the same user installs PL/SQL Dev, Toad, or any other Oracle management tool, she can edit the data in ways that the app prohibits.

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• Is there a straightforward way to have a thread-local instance variable?

  - by Dan Tao

  With the ThreadStatic attribute I can have a static member of a class with one instance of the object per thread. This is really handy for achieving thread safety using types of objects that don't guarantee thread-safe instance methods (e.g., System.Random). It only works for static members, though. Is there any straightforward way to declare a class member as thread-local, meaning, each class instance gets an object per thread?

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• Any harm in setting php.ini, my.cnf and httpd.conf (apache2.conf) charsets?

  - by Camran

  I am thinking about setting the php.ini, my.cnf and httpd.conf default charsets=UTF-8 The website is in swedish lang only. I have some folders with special chars in them, also some files. Is there any harm by doing this? Is it cross-browser safe? Thanks

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• Is there a straightforward way to have a ThreadStatic instance member?

  - by Dan Tao

  With the ThreadStatic attribute I can have a static member of a class with one instance of the object per thread. This is really handy for achieving thread safety using types of objects that don't guarantee thread-safe instance methods (e.g., System.Random). It only works for static members, though. Is there some corresponding attribute that provides the same functionality, but for instance members? In other words, that allows me to have one instance of the object, per thread, per instance of the containing class?

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• How big is interval between taking pictures in Android phone?

  - by rmaster

  I'm wondering how fast I can take pictures one after another withoud surprises from the phone (like fx: 'force close;) Does any of you know that time? I know that 500 milisec is safe time. When i experiment with 100, 200, 300 milisec there is error but who knows, maybe i do sth wrong.

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• Joomla: comments for own componet

  - by vitperov

  I have written my own Jommla component for displaying particular information (for example car info: engine power, year and etc.). Now I want to add a comments to my component. Implementing comments by my own is too hard and it's not very safe. Maybe someone had and experience integrating some existing joomla component for an own component? Update: Maybe I can copy-paste code of some existing joomla comments component in my own component? Does somebody tried to do this?

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• Are cookies enough for storing login data? (PHP)

  - by jpjp

  I am reading the Head First PHP/Mysql book and they say to store both the user's username, email into cookies and sessions. Is it safe to assume that everyone know a day has cookies? Or should I store both in sessions and cookies? I am not storing any sensitive data in cookies such as password, etc.

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• Does a Distributed Version Control System really have no centralised repository?

  - by John

  It might seem a silly question, but how do you get a working drectory set up without a server to check out from? And how does a business keep a safe backed up copy of the repo? I assume then there must be a central repo... but then how exactly is it 'distributed'? I always thought of a server-client (SVN) Vs peer-2-peer (GIT) distinction, but I don't believe that can be correct unless tools like GIT are dependent on torrent-style technology?

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• Strongest cipher available to use with C/C++ ?

  - by George0x77

  I am just wondering if you are supposed to write a sort of really secure application with data being transmitted over insecure networks, what kind of encryption algorithm will you use it in order to make it safe ? I know several c++ libraries for encryption providing nice functions with different algorithms, but i'm not quite sure which cipher to use - AES, DES, RSA, Blowfish or maybe something more different ? Please provide your ideas and suggestions. Thank you.

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• manage messages reported as spam

  - by parm.95

  I want to have an admin page to manage user messages reported as 'spam'. I know how to use MySql and php to have a list of messages reported but I don't know what is the more safe way to access to this page. Local, https,... What strategy use big websites as Facebook, MySpace,... to verify that a message is a true spam and to delete it?

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• Is it possible to get a pointer to String^'s internal array in C++/CLI?

  - by CannibalSmith

  The goal is to avoid copying the string data when I need a const wchar_t*. The answer seems to be yes, but the function PtrToStringChars doesn't have its own MSDN entry (it's only mentioned in the KB and blogs as a trick). That made me suspicious and I want to check with you guys. Is it safe to use that function?

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• Source control system for small database dev team

  - by bjorsig

  I am responsible for a small development team and we deal mainly with database development. We are currently using MS Visual Source Safe as our source control system, but it has its limitations and we are seriously thinking about changing. What system would you choose?

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