open-source

openssl crypto library - base64 conversion

I'm using openssl BIO objects to convert a binary string into a base64 string. The code is as follows: void ToBase64(std::string & s_in) { BIO * b_s = BIO_new( BIO_s_mem() ); BIO * b64_f = BIO_new( BIO_f_base64() ); b_s = BIO_push( b64_f , b_s); std::cout << "IN::" << s_in.length(); BIO_write(b_s, s_in.c_str(), s_i...

Open Source Alternative to ASP.NET membership

I'm currently supporting a Python web app with increasingly complicated user/role/permission management requirements. Currently, we are rolling our own user, groups, permissions, etc. code and supporting database. I'd like to find something like ASP.NET membership that can help manage user authentication and authorization, rather than ...

Reccomendations for code/components/software for online custom print

Can anyone recommend code or components (open source or commercial) that can be integrated with an existing e-commerce website to do the following: Allow customers to edit custom text on an image (such as a birthday card) See a preview of the image with the custom text added Generate a proof of the image with the customizations I ha...

Getting started with open source

I'm an undergraduate who has decided that he wants to join the open source community and contribute. However, I have come to think that, once you have chosen an open source project, a lot of time is spent in learning the nitty gritties of that project in addition to stuff like subversion,etc which a typical undergraduate isn't exposed to...

Best Practices for Setup and Management of an Open Source Project

Later this year I want to release a PHP framework that I've been working on as open source. I do use source control (SVN), but it's on an extremely limited basis. I'm self-taught, I develop by myself and don't have the experience of working with large teams. I have some ideas about what can help make a project successful, but I'm fuzzy o...

Does an updated 'vimtutor' exist?

vim comes with a nice built-in interactive tutorial. You can access this tutorial by just running: $ vimtutor It is very easy to use because it creates working cases for basic commands. Is there a more advanced tutorial? Has any one though to build one to help uses take their VIM skills to the next level. Most tutorial and cheat-s...

Viewing recently edited etherpads (note new 'etherpad' tag for open sourced etherpad code!)

Prescript: The amazing etherpad was recently open sourced. Get it here: http://code.google.com/p/etherpad. This is the first question that I know of on StackOverflow about the etherpad code. If you're part of the etherpad open source community, you might want to subscribe to the RSS feed for questions tagged 'etherpad' just in case t...

Typical practice for redistributing third party source code with your source code

I'm releasing an application I wrote as an open-source project by creating a public source-code repository. I use a third-party library which is also open-source and freely redistributable. I'm not versioning the third-party library, but should I include it in my repository for the convenience of those cloning the repository or should ...

Open Source/Free Social Networking SDK

I am currently gathering some technology requirements for a site that will be a social network based. I don't want to re-invent the wheel so i am looking for some type of SDK or collection of tools that can provide me with a way of creating/managing a social network. I understand that no framework will probably fit my exact needs so I ...

Advice for keeping large C++ project modular?

Our team is moving into much larger projects in size, many of which use several open source projects within them. Any advice or best practices to keep libraries and dependancies relatively modular and easily upgradable when new releases for them are out? To put it another way, lets say you make a program that is a fork of an open sourc...

Open-sourcing a web site with active users?

I currently run several research-related web-sites with active users, and these sites use some personally identifying information about these users (their email address, IP address, and query history). Ideally I'd release the code to these sites as open source, so that other people could easily run similar sites, and more importantly scr...

comercial idea for a gpl project

hi, i have a code generator project i would like to offer like open source, but giving programmers the option to get some money writing plugins, anyone having experience about how to do it? for example im thinking in doing some kind of packets or plugins to add to the application... ...

Tag Cloud library in Java

I would like to know if there's an open source library (JAR) available to generate a tag-cloud in Java? ...

Building a financial app with Django

Hi guys, I'm building an app for a small business so I've to work with currencies, decimal numbers, etc... My goal is to create something like pulseapp.com. I've searched for opensource projects to look and the only thing I had found was django-cashflow. This app uses python-money. I've read some of the code and the ways it's coded see...

Can I host a mirror on github or googlecode, if the project is managed on codeplex.com? Should I?

I have a project managed on codeplex.com. Does it ever make sense to push source releases to github or googlecode? ...

Java is open-source, so what?

Hi all, I always here that Java being open-source is a big benefit, but I fail to see how Java being open-source should draw me to use it as opposed to .NET which is closed-source. This website has some Q&A sections (What is the significance of these developments to the industry? in particular) that give a little info, but is being free...

Higher than high-level web frameworks or CMS's?

I'm looking for options that allow very high-level web site development with these special characteristics: not requiring the user to program in a complex programming language not requiring the user to use GUI-like administration areas allow the user to "program" in a lightweight markup language The last point is not only about look ...

Code reading: where can I read great, modern, and well-documented C++ code?

Reading code is one of the best ways to learn new idioms, tricks, and techniques. Sadly it's very common to find badly written C++ code. Some use C++ as if it was C, others as if it was Java, some just shoot in their feet. I believe gtkmm is a good example of C++ design, but a binding could not be the best code to read (you need to kn...

Active C++ project to contribute to

I am a self-taught c++/java programmer (I will be starting uni in August though!). I have worked on one project in which I was part of an active team. I really felt I learnt the most and gained a lot of experience while working with the team. Unfortunately it was a small closed source project which has recently taken a slumber. I'm l...

Legality Of Re-Implementing An Existing API (e.g. GNU implementing the UNIX APIs)

I've often wondered about this. I'm not looking for legal advice, just casual opinions ;) If some company publishes an API on the web for their closed-source library, would it be legal for another party to release an open-source implementation of that API? Are function declarations considered source code? Take GNU implementing the UNIX...