I'm build a a BitTorrent tracker with CodeIgniter, and i'm use Torrent RW class for parsing .torrent files (info hash, read/write tracker url, etc.).
I would like to run external torrents, and i need help: how to parse external torrent stats -> seeders-, leechers number.
Please, help me, and sorry for my bad english.
Thanks!
Save yourself the time and use an existing open php torrent tracker (or better yet, convert it over to CodeIgniter and open source it to contribute back!).
RivetTracker
PHPBTTracker+
TBDEV.net
Most are based on the original PHPBTTracker by DeHackEd.
My recommendation would be to look up the PHP required to do this and then think about implementing it in Codeigniter.
The Torrent RW class will read the torrent but you will need to somehow connect to the torrent and its seeds and leechers in order to get this information.
Check out:
http://sourceforge.net/projects/tbdevnet/
Related
I am writing a Bittorrent client in Go and I would like to save the progress of the download by writing a bitfield to the file headers/metadata. This allows me to cancel the download and restart from where I left off the next time I start downloading.
However, I could not find any standard or third party libraries that allow me to write to file metadata. The closest I have gotten was printing the FileInfo struct returned by os.Stat. I am not sure how to add/edit the FileInfo struct.
I realized there are no library functions in Golang like that because metadata is a filesystem specific implementation. So, I have decided to hide my metadata in a hidden file like .filename.meta
Does anyone know if there is a way to load any external executable javascript from a firefox add-on extension? I looked into scriptloader.loadSubScript, but it appears that it can only load from a local resource.
Any help would be appreciated.
You can always xhr for a file, save the contents to disk, then use scriptloader.loadSubScript with an add-on
this would violate the AMO policies though, so you wouldn't be able to upload the add-on to http://addons.mozilla.org
As #erikvold already pointed out, doing so would be a security hazard AND it also violates AMO rules (because it is a security hazard).
Consider your server gets compromised, or there is a way to MITM the connection retrieving the remote script (TLS bugs anyone :p), or you sell your domain and the new owner decides to ship a script to collect credit card information straight from a user's hard disk...
However, it is possible to run a remote script in an unprivileged environment, much like it would run in a website.
Create a Sandbox. The Sandbox should be unprivileged, e.g. pass an URL in your domain into the constructor.
Retrieve your script, e.g. with XHR.
Evaluate your script in the Sandbox and pull out any data it might have generated for you.
This is essentially what tools like Greasemonkey (executing user scripts) do.
Creating and working with Sandboxes in a secure fashion is hard, and the Sandbox being unprivileged prohibits a lot of use cases, but maybe it will work for your stuff.
Try using Components.utils.import .
Example :
const {Cc,Ci,Cu} = require("chrome");
Cu.import("url/path of the file");
Note :
js file which uses DOM objects like window, navigator, etc. will return error saying "window/navigator is undefined". This is simply because the main.js code does not have access to DOM.
Refer this thread for more information.
Examining the 404 errors for my website I noticed requests for a "labels.rdf" file. After some digging I think I understand what it is and want to create one for my website. But I don't really understand how to generate it. Is there any tool or a generic file that I can use?
Thanks
RDF is not just one format, but a collection - most likely it's expecting RDF/XML.
IMHO the esiest thing to do is create the data you need in a format called Turtle (http://www.w3.org/TeamSubmission/turtle/) - there's lots of tutorials online, then convert it to RDF/XML with a tool, such as rapper (http://librdf.org/raptor/).
You will need to know a bit about the RDF data model though, and what the labels.rdf file is trying to express.
I'm working on my first ORM project and am using Mechanize. Here's the situation:
I'm downloading a zip file from my website into a Mechanize::File object. Inside the zip is a file buried three folders deep (folder_1/folder_2/file.txt). I'd like to pull file.txt out of the zip file and return that instead of the zip file itself.
My first thought was to use zip/zipfilesystem. I can do this fine if I save the file to the disk first and use Zip::ZipFile.open(src) but can anyone tell me how/if it is possible to send it over straight from the Mechanize::File.body.
My gut says this has to be possible and I'm just missing something basic. I tried...
zipfile = Mechanize::File.body
Zip::ZipFile.open(zipfile)
...but from what I can tell Zip::ZipFile is only set up to locate a source from a filesystem.
Any direction would be very appreciated and let me know if there are any questions
Thanks in advance
Rob
It seems what you want to do is not possible with rubyzip. From rubyzip library's TODO file:
SUggestion: ZipInputStream/ZipOutputStream should accept an IO object in addition to a filename.
What is the best practice when serving files from the Zend Framework MVC? These files have to be served from the MVC as they are protected.
I know you can read in the file and place it into the Response object but this seems like a bad practice as you would be reading the entire file into memory then serving it. Right now I usually do:
header('Content-type: image/jpeg');
fpassthru(fopen($path, 'rb'));
exit;
But this also doesn't seem right as I'm stopping the execution of the script. Any suggestions?
I see nothing wrong with just exit(); What you will need to be careful of is any output buffering layers you may have on (gzip compression, etc). Large files could blow up those buffers pretty quick, so you'll want to close them out and potentially 'chunk' your output with a fopen/fread loop.
I would suggest building a super-simple script for retrieving files based on ticket system like in CMS you generate ticket to DB - filename, unique-hash and than redirect to the super-simple file-retieving script (file.php?hash=asd52ad3as1g5). It will get the hash from query and based on it fetch the real filename and push that to output as you have written using fpassthru. The hash need to be unique and hard to guess...
You could try using the X-Sendfile header. It is supported by lighttpd and newer versions of apache. Basically the webserver will replace the output of the script with the file you specified. The downside being that it is specific to the configuration of the webserver, so you may be on a host that doesn't support it.