RunSwift: Try Swift in Your Browser
runswiftlang.com
RunSwift: Try Swift in Your Browser
1–10 of 24 posts
Re: RunSwift: Try Swift in Your Browser
#2Hi! I made RunSwift this past week and thought it was pretty neat so I wanted to share it. Have fun!
Re: RunSwift: Try Swift in Your Browser
#3Hi! I made RunSwift this past week and thought it was pretty neat so I wanted to share it. Have fun!
I've always wondered how these are made. Does it run in some kind of virtualised container?
Re: RunSwift: Try Swift in Your Browser
#4Hi! I made RunSwift this past week and thought it was pretty neat so I wanted to share it. Have fun!
I've always wondered how these are made. Does it run in some kind of virtualised container?
That's one way to do it, sure. In this case I had the problem of having to use a Mac for a build server, though.
I did a few things to get this running:
- The application server and build server are separate, with access control to the build server controlled by an API key that I can revoke should anyone gain access to it.
- The process that compiles and runs your code is an unprivileged user.
- All import statements are disabled in user submitted code
- Foundation is imported selectively with only a few classes allowed to be used by submitted code (namely, the NSString, NSArray, NSDictionary, etc APIs)
- Code is checked for a list of blacklisted APIs before hitting the compiler
- The execution of your code has a timeout of a few seconds, and the process will be killed should it take any longer.
I looked into more advanced techniques for sandboxing but couldn't find anything on OS X that was feasible. Happy to be schooled on security though, if you know better than I do :)
Re: RunSwift: Try Swift in Your Browser
#5Hi! I made RunSwift this past week and thought it was pretty neat so I wanted to share it. Have fun!
Looks a lot like swiftstub.com. Nice job though.
Re: RunSwift: Try Swift in Your Browser
#6Re: RunSwift: Try Swift in Your Browser
#7Earlier quoted context omitted.
Looks a lot like swiftstub.com. Nice job though.
Hah, had never seen that :) thanks for the link!
Re: RunSwift: Try Swift in Your Browser
#8I dabbled with implementing Swift on JavaScript, but has proven a bit difficult. The grammar is very big and just implementing a parser is huge task on its own.
I would like to see someone tackle this though.
Re: RunSwift: Try Swift in Your Browser
#9I dabbled with implementing Swift on JavaScript, but has proven a bit difficult. The grammar is very big and just implementing a parser is huge task on its own. I would like to see someone tackle this though.
It will happen. http://www.reddit.com/r/atwoodslaw/
Re: RunSwift: Try Swift in Your Browser
#10Earlier quoted context omitted.
I've always wondered how these are made. Does it run in some kind of virtualised container?
That's one way to do it, sure. In this case I had the problem of having to use a Mac for a build server, though. I did a few things to get this running: - The application server and build server are separate, with access control to the build server controlled by an API key that I can revoke should anyone gain access to it. - The process that compiles and runs your code is an unprivileged user. - All import statements…
You can execute the process under sandbox-exec to take advantage of OS X kernel-level sandboxing. You'll need to write your own profile file that allows/denys what you want. There are plenty of examples of these .sb profile files under /System/Library. More: https://developer.apple.com/library/mac/documentation/Darwin...