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• Are parametrized calls/sanitization/escaping characters necessary for hashed password fields in SQL queries?

  - by Computerish

  When writing a login system for a website, it is standard to use some combination of parameterized calls, sanitizing the user input, and/or escaping special characters to prevent SQL injection attacks. Any good login system, however, should also hash (and possibly salt) every password before it goes into an SQL query, so is it still necessary to worry about SQL injection attacks in passwords? Doesn't a hash completely eliminate any possibility of an SQL injection attack on its own?

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• How can my iphone app detect it's own version number?

  - by cmos

  I'm writing an iPhone app. It's already been published, but I would like to add a feature where it's version number is displayed. I'd rather not have to do this manually with each version I release.. Is there a way in objective C to find out what the version is of my app?

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• How does one output bold text in BASH?

  - by ratberryjam

  I'm writing a bash script that prints some text to the screen: echo "Some Text" Can I format the text? I would like to make it bold. Thank you.

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• "reduce" or "apply" using logical functions in Clojure

  - by Alex B

  I cannot use logical functions on a range of booleans in Clojure (1.2). Neither of the following works due to logical functions being macros: (reduce and [... sequence of bools ...]) (apply or [... sequence of bools ...]) The error saying that I "can't take value of a macro: #'clojure.core/and". How to apply these logical functions (macros) without writing boilerplate code?

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• Triggering a Gtk+ menu bar on hover

  - by Kazade

  I've writing a Gnome window-switcher applet in PyGtk+ using menu items to represent the different applications running on the desktop. One thing I'd like to do is to activate the menu item under the cursor when I hover over the menubar. I can connect to the 'enter-notify-event' on the menu bar, but I don't know what to when it is triggered. So that's my question, how can I make the submenus of the menu bar open when I hover over their parent items?

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• Is there a way to get direct_to_template to pass RequestContext in django?

  - by BigJason

  I have found myself writing the same view over and over. It is basically this: def home_index(request): return render_to_response('home/index.html', RequestContext(request)) To keep with the dry principal, I would like to utilize a generic view. I have seen direct_to_template, but it passes an empty context. So how can I use a generic view and still get the power of RequestContext?

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• How do I open a file in such a way that if the file doesn't exist it will be created and opened automatically?

  - by snakile

  Here's how I open a file for writing+ : if( fopen_s( &f, fileName, "w+" ) !=0 ) { printf("Open file failed\n"); return; } fprintf_s(f, "content"); If the file doesn't exist the open operation fails. What's the right way to fopen if I want to create the file automatically if the file doesn't already exist? EDIT: If the file does exist, I would like fprintf to overwrite the file, not to append to it.

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• How can I determine if a file is read-only for my process on *nix?

  - by user109078

  Using the stat function, I can get the read/write permissions for: owner user other ...but this isn't what I want. I want to know the read/write permissions of a file for my process (i.e. the application I'm writing). The owner/user/other is only helpful if I know if my process is running as the owner/user/other of the file...so maybe that's the solution but I'm not sure of the steps to get there.

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• What is the fastest / best Base64 en/decoder for Java ?

  - by mP

  Just found the MIG Base 64 utility but its over 6 years old since its last release. It would appear to be quicker than the Apache commons equivalent but I have yet to confirm by writing up an actual test. Has anyone verified its correctness which is always a worry. If someone takes a look at the methods, please note i a referring to the non fast methods which make assumptions trading possible correctness for pure speed.

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• Class definition thinks setting a variable is a Unit?

  - by DeLongey

  Writing out a Scala class and problem here is that the compiler thinks that the code is a unit not returning the proper value. It's a method used to set a property in the class: def setObject(`object`:StripeObject):StripeObject = { this.`object` = `object` } The error is: type mismatch; found : Unit required: com.stripe.StripeObject The full class is: case class EventData(var previousAttributes: HashMap[String,Object], var `object`:StripeObject) extends StripeObject { def getPreviousAttributes = { previousAttributes } def setPreviousAttributes(previousAttributes: HashMap[String, Object]) = { this.previousAttributes = previousAttributes } def getObject = { `object` } def setObject(`object`:StripeObject):StripeObject = { this.`object` = `object` } } How do I make sure it doesn't return a Unit?

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• Linux directories

  - by Alex Farber

  I am writing installation script for my program, which is supposed to run on Linux/Unix OS. What is the default directory for the following files: Executable files (programs). Program should be executed by typing its name from the command line. Shared libraries. Third-party shared libraries (the program is not open source, so I need to redistribute third-party libraries). Read-only program configuration files for all users. Configuration data available for read/write access for all users.

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• Easy command line Java compile

  - by Nash0

  So I have to send a java project to someone outside our company who has no experience with java and they need to compile it. Is there an easy way to do it on the windows command line that does not require writing out lists of the files? Personally I think javac should be smart enough to handle javac * when in the folder just under the root of the package hierarchy. Is there anything in this ballpark?

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• Is there a python module compatible with Google Apps Engine's new "Tasks"

  - by refack

  I'm writing a Python application, that I want to later migrate to GAE. The new "Task Queues" API fulfills a requirement of my app, and I want to simulate it locally until I have the time to migrate the whole thing to GAE. Does anyone know of a compatible module I can run locally?

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• How find a variable value in MOD expression?

  - by chiaotzu

  9 = 2^X mod 11 What is X and how do you find X? Its related to finding the plain text in RSA algorithm and I'm writing a C program for it.

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• How can I stop Pages from bolding/italicizing ordered list item numbers/letters?

  - by donut

  I'm writing a long, technical document that uses a lot of ordered lists in Pages '09. Often when I bold or italicize the first bit of text I type for a list item it Pages applies the same styling to the letter or number of that list item. It's been doing this for the first 13 pages I've written and now I've found out that I need to undo that. Is there any place to change this behavior or easily fix existing list item numbers/letters that are styled? The only way I've found is to select the whole list item (all of its content) and removing teh styling (un-bolding and un-italicizing) and then going back in and re-applying my stylings to its content. Definitely not ideal.

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• Java Optimization String vs Char Arrays

  - by ThePinkPoo

  In a program I am writing I am doing a lot of string manipulation. I am trying to increase performance and am wondering if using char arrays would show a decent performance increase. Any suggestions?

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• What are the implications of multi-tasking in iOS 4.0 for developers?

  - by MrDatabase

  I just watched this video from Apple that shows multi-tasking on the new iPhone (running iOS 4.0). What are the implications of multi-tasking to developers? Include both positives and negatives. For example what happens if the user decides to launch two resource-intensives apps at the same time, one of the apps crashes and progress in a game (for example) is lost. Should developers be considering this when writing apps for the new OS and phone?

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• why do you write tests and what is a unit test and how does it differ other types of testing ?

  - by dfafa

  im curious as to know, why tests are written? why would bother writing it ? why not just compile and run the code or view it in your browser, click around and test out stuff. i mean i can understand, a crawler that checks your web app's functions....but why is tests written, maintained and treated as important as the main feature codes ? is it crucial to always write and use tests ?

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• [Python] Different work of the script in Windows and in FreeBSD

  - by www.yegorov-p.ru

  Hello. I'm writing some script, that works with web-servers. So, I have the following code: client = suds.client.Client(WSDLfile) client.service.Login('mylogin', 'mypass') print client.options.transport.cookiejar ####### sessnum = str(client.options.transport.cookiejar).split(' ')[1] client = suds.client.Client( WSDLfile, headers= { 'Set-Cookie' : sessnum } ) When running in FreeBSD, it returns <cookielib.CookieJar[<Cookie sessnum=9WAXQ25D37XY535F6SZ3GXKSCTZG8CVJ for .IP.IP.IP.IP/>]> but in Windows it returns <cookielib.CookieJar[]> How can I fix it?

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• header redirect in Wordpress Plugin?

  - by Kristopher

  I'm writing a Wordpress plugin, and based on certain circumstances, I want to redirect to a different page, but the redirect never happens. headers_sent() returns false. I'm using the pre_get_posts hook. Here is a small snippet: function test_redirect() { header("Location: http://www.cnn.com/"); } add_action('pre_get_posts', 'test_redirect'); The redirect never happens, and no errors are reported on the page or in the error log. Why can't I redirect?

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• Image overlay on external window

  - by user295848

  I'm writing a C# WPF application that creates a video capture of the active window. What I want to do is overlay a transparent .png file in the corner of the active window while a capture is in progress so that all the videos created by my application are watermarked. If I have the IntPntr handle of the window I am capturing and an image file - what is the best way to go about this? Thanks

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• Javascript: How to detect if a word is highlighted

  - by fterh

  I'm writing a Firefox addon that is triggered whenever a word is highlighted. However I need a script that detects when a word is highlighted, and I'm stuck. An example would be nytimes.com (when you're reading an article and you highlight a word, the reference icon pops up). However the nytimes.com script is super complex. I'm 16 and not much of a programmer, so that is definitely way out of my league.

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• What happened to WinFS?

  - by Console

  The most interesting feature that was ever connected to what eventually became Vista was WinFS, a revolutionary (so it seemed, at least back then) new way of storing and accessing information on a computer. This feature was cut despite actually reaching a closed alpha/technical preview release. There was a smoke and mirrors blog post from MS about the technology living on in an upcoming SQL server release, but to me it just felt like it was axed, hard. Does anyone have any idea what happened to it? Is it killed, or just on the backburner? Was it just impossible to implement, too expensive, or did someone think of a better idea? Are there any projects (From MS or anyone else) that have similar goals?

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• PHP difference between notice and warning

  - by Stegeman

  When writing code errors, warnings and notices can occur. I know the idea behind errors. I suppose a warning is there to inform you about something that can cause an error, but isn't a notice exaclty the same? I suppose a notice is not a message of something doing right ;). It's just a bit confusing to me. Can anybody tell the difference between those two and the way these messages should be treated.

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• Getting path of file copied after deployment in a unit test C#

  - by amitchd

  Hi, The connection string in my app.config for my C# project looks like Data Source=.\SQLEXPRESS;AttachDbFilename='|DataDirectory|\EIC.mdf';Integrated Security=True;User Instance=True" I am writing unit tests for the project and have the set the test run configuration to copy the EIC.mdf, but I do am not able to reference the Deployed copy of EIC.mdf to be referenced by the app.config I created for the test project. If I set it to Data Source=.\SQLEXPRESS;AttachDbFilename='EIC.mdf';Integrated Security=True;User Instance=True" It still does not find the mdf file.

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