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| *[[pr-downloader]] (c++, cross-platform) | | *[[pr-downloader]] (c++, cross-platform) |
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| ==Rapid==
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|
| |
|
| ===server-side===
| | There are some download systems for spring content files: |
| Made by CarRepairer:
| | - [[Rapid]] is currently for games only (rsync like) |
| | | - [[xml-rpc]] allows to search for games and maps |
| http://packages.springrts.com/
| | - [[Plasma]] allows to search for games and maps |
| | |
| Or svn, developed by licho & det[THE]threat (instantly creates the rapid entry after an svn commit)
| |
| http://code.google.com/p/zero-k/source/browse/trunk#trunk%2Ftools%2Fbuild_ca
| |
| | |
| To get+compile the server-side-tools:
| |
| | |
| sudo aptitude install subversion libextlib-ocaml-dev libxml-light-ocaml-dev \
| |
| libzip-ocaml-dev libpcre-ocaml-dev libsvn-dev liblua5.1-0-dev
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| svn co svn://svn.caspring.org/trunk/tools/build_ca
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| cd build_ca
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| | |
| ./add-archive <file.sdz> </path/to/repo> <tag1 tag2 ...>
| |
| | |
| filename of the .sdp is:
| |
| md5(md5(filename1) + md5(content of file1) + md5(filename2) + md5(content of file2) ...)
| |
| | |
| ===general description===
| |
| Rapid is used to list all games in the (online-) repositry
| |
| | |
| as spring supports also reading such a structure, there are some docs in the [http://github.com/spring/spring/blob/master/rts/System/FileSystem/ArchivePool.h sourcecode]
| |
| | |
| here is a short description how it works:
| |
| | |
| take a mod archive
| |
| | |
| atm the archive is a single blob
| |
| rapid takes all the files in an archive it zips them separately and gives to each zip, as filename, the md5 of the file itself those files belong to the pool folder.
| |
| mods can share files as long as the md5 is the same.
| |
| A mod, is a binary file that is what can be seen in ~/.spring/pool/
| |
| | |
| ~/.spring/packages containts all mods with the associated md5s
| |
| | |
| The filesize is useless, since it assumes same md5 == same file, ie assumes no collision.
| |
| | |
| Then, there's a repository of mods:
| |
| ie, a list of available mods, and the pool files they need | |
| since now on, i'll refer to a mod as the file which is list of md5 that it needs
| |
| unless specified otherwise
| |
| spring can read those mods and pool folder directly
| |
| unpacking the files on the fly and reading them like it'd be a monolithic archive
| |
| then, there's yet another repository, which contains the list of repositories
| |
| if you picture in a tree graph
| |
| there's list of repositories on top
| |
| then splits to multiple repos
| |
| then each repos has multiple mods
| |
| | |
| http://repos.springrts.com/repos.gz is the master
| |
| | |
| what a rapid downloader needs to do:
| |
| download the list of repositories
| |
| for each repository | |
| download the list of available mods
| |
| the each repo has also info about latest version of a mod
| |
| then, give a list of available mods ( packages in linux package manager terms ), and eventually some meta package that represents the latest version of a mod
| |
| on download request, download the mod descriptor
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| parse it to get the list of md5
| |
| check the available md5 local in the pool folder, and download the missing
| |
| upon download of each file, the rapid tool should deflate each archive and verify that the md5 is the same as the file
| |
| if not, reject it
| |
| | |
| if the test is successful, move the md5 files to the pool folder
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| the mod descriptor
| |
| belongs to the packages folder instead
| |
| with filename == md5 hash
| |
| and sdp extension
| |
| extra functionality, which is optional:
| |
| add possibility to delete mods ( since the filenames use md5 hash, it's quite unclear to the user which files he should remove )
| |
| and a garbage collector which removes the files from the pool which aren't linked by mod | |
| | |
| simple reference counting should suffice for garbace collecting
| |
| | |
| ===in short===
| |
| rapid downloads the master file with all repos:
| |
| http://repos.springrts.com/repos.gz
| |
| then it downloads from all repos /versions.gz
| |
| for example here http://packages.caspring.org/versions.gz
| |
| | |
| ca-1faction:revision:6355,054cf15829e79c357a3be50236e00c4f,Complete Annihilation test-6355,Complete Annihilation 1 faction test-6355
| |
| the first section is the name: "ca-1faction:revision:6355"
| |
| | |
| the package will be downloaded from hash +.sdp
| |
| so 054cf15829e79c357a3be50236e00c4f.sdp
| |
| that file belongs to the local packages folder
| |
| that file contains the list of md5
| |
| that the mod requires
| |
| so you should open it
| |
| and then check the local pool folder
| |
| for all the missing files
| |
| | |
| http://packages.caspring.org/packages/054cf15829e79c357a3be50236e00c4f.sdp
| |
| this file contains binary md5 + filename of the original file
| |
| | |
| remember: you must keep the file names untouched
| |
| as in, everything is indexed by md5
| |
| | |
| to download the md5 files there's a streamer which will speed up the download
| |
| ===adding your game to the rapid download system===
| |
| [http://springrts.com/phpbb/viewtopic.php?f=67&t=22077 forum thread]
| |
| | |
| ==Plasma==
| |
| | |
| The plasma system can be used to download a specific file by filename
| |
| | |
| http://zero-k.info/ContentService.asmx
| |
| | |
| Its a soap-service, the service-name for downloading is "DownloadFile".
| |
| | |
| It returns a torrent file and a list of mirrors. This allows parallel downloads and pieces can be checked with the torrent file. A torrent file is a bencoded file.
| |
| | |
| An [http://zero-k.info/ResourceList.aspx admin-interface] is also available.
| |
| | |
| ==xml-rpc==
| |
| | |
| made by abma
| |
| | |
| springfiles.com supports a xml-rpc service which allows to search for files, too:
| |
| | |
| for an example-client see: https://github.com/springfiles/upq/blob/dedicated/doc/exampleclient.py
| |
| | |
| implementation in c++:
| |
| https://github.com/abma/pr-downloader
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|
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|
| [[Category: Lobbies]] | | [[Category: Lobbies]] |
| [[Category: Download_Systems]] | | [[Category: Download_Systems]] |
The Lobbys currently use two download systems: Torrent and Rapid, a new one is also avaiable (xml-rpc on springfiles.com)
Sorry, this file is from a chatlog (+slightly improved) use it only as a start.
Feel free to improve it!
clients/implementations
There are some download systems for spring content files:
- Rapid is currently for games only (rsync like)
- xml-rpc allows to search for games and maps
- Plasma allows to search for games and maps
