blocks|key|1316101|text|bittorrent协议的完整描述：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1316102|http://jonas.nitro.dk/bittorrent/bittorrent-rfc.html|offset|length|1316103|entityMap|0|LINK|mutability|MUTABLE|url^0|0|0|1G|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|N|8|@]|9|@$D|O|E|P|1|Q]]|A|$]]|$1|F|3|-4|5|6|7|R|8|@]|9|@]|A|$]]]|G|$H|$5|I|J|K|A|$L|C]]]]

the complete description of bittorrent protocol:

<a href="http://jonas.nitro.dk/bittorrent/bittorrent-rfc.html" rel="noreferrer">http://jonas.nitro.dk/bittorrent/bittorrent-rfc.html</a>

blocks|key|1531170|text|这就是libtorrent库。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1531171|这是API+documentation和examples。|1531172|entityMap|0|LINK|mutability|MUTABLE|url|http://www.rasterbar.com/products/libtorrent/index.html|1|http://www.rasterbar.com/products/libtorrent/manual.html|2|http://www.rasterbar.com/products/libtorrent/examples.html^0|3|A|0|0|2|H|1|K|8|2|0^^$0|@$1|2|3|4|5|6|7|R|8|@]|9|@$A|S|B|T|1|U]]|C|$]]|$1|D|3|E|5|6|7|V|8|@]|9|@$A|W|B|X|1|Y]|$A|Z|B|10|1|11]]|C|$]]|$1|F|3|-4|5|6|7|12|8|@]|9|@]|C|$]]]|G|$H|$5|I|J|K|C|$L|M]]|N|$5|I|J|K|C|$L|O]]|P|$5|I|J|K|C|$L|Q]]]]

There is the <a href="http://www.rasterbar.com/products/libtorrent/index.html" rel="noreferrer">libtorrent</a> library.

Here's the <a href="http://www.rasterbar.com/products/libtorrent/manual.html" rel="noreferrer">API documentation</a> and <a href="http://www.rasterbar.com/products/libtorrent/examples.html" rel="noreferrer">examples</a>.

blocks|key|1531359|text|这是一个很好的源码，http://www.kristenwidman.com/blog/how-to-write-a-bittorrent-client-part-1/她一步一步地解释了这个过程。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1531360|entityMap|0|LINK|mutability|MUTABLE|url|http://www.kristenwidman.com/blog/how-to-write-a-bittorrent-client-part-1/^0|A|22|0|0^^$0|@$1|2|3|4|5|6|7|L|8|@]|9|@$A|M|B|N|1|O]]|C|$]]|$1|D|3|-4|5|6|7|P|8|@]|9|@]|C|$]]]|E|$F|$5|G|H|I|C|$J|K]]]]

This is good source <a href="http://www.kristenwidman.com/blog/how-to-write-a-bittorrent-client-part-1/" rel="noreferrer">http://www.kristenwidman.com/blog/how-to-write-a-bittorrent-client-part-1/</a>
She explains the process step by step...

blocks|key|1531208|text|我建议你去看看at+the+spec和一些开源客户端的源代码。你必须做一些工作，但这就是编程的方式。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1531209|entityMap|0|LINK|mutability|MUTABLE|url|http://www.bittorrent.org/beps/bep_0003.html^0|7|B|0|0^^$0|@$1|2|3|4|5|6|7|L|8|@]|9|@$A|M|B|N|1|O]]|C|$]]|$1|D|3|-4|5|6|7|P|8|@]|9|@]|C|$]]]|E|$F|$5|G|H|I|C|$J|K]]]]

I'd suggest you look <a href="http://www.bittorrent.org/beps/bep_0003.html" rel="noreferrer">at the spec</a> and sources of some OSS clients. You'll have to do some work, but that's how programming works.

blocks|key|1316077|text|我目前正在使用this规范在Java语言中实现一个BitTorrent客户端。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1316078|entityMap|0|LINK|mutability|MUTABLE|url|http://wiki.theory.org/index.php/BitTorrentSpecification^0|7|4|0|0^^$0|@$1|2|3|4|5|6|7|L|8|@]|9|@$A|M|B|N|1|O]]|C|$]]|$1|D|3|-4|5|6|7|P|8|@]|9|@]|C|$]]]|E|$F|$5|G|H|I|C|$J|K]]]]

I'm currently implementing a BitTorrent client in Java using <a href="http://wiki.theory.org/index.php/BitTorrentSpecification" rel="noreferrer">this</a> specification.

blocks|key|1316127|text|Qt非常容易阅读，因此您可以阅读Qt+Torrent+Example+(C%2B%2B)|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1316128|entityMap|0|LINK|mutability|MUTABLE|url|http://doc.qt.nokia.com/latest/network-torrent.html^0|G|I|0|0^^$0|@$1|2|3|4|5|6|7|L|8|@]|9|@$A|M|B|N|1|O]]|C|$]]|$1|D|3|-4|5|6|7|P|8|@]|9|@]|C|$]]]|E|$F|$5|G|H|I|C|$J|K]]]]

Qt is very easy to read so you can read the <a href="http://doc.qt.nokia.com/latest/network-torrent.html" rel="nofollow">Qt Torrent Example</a> (C++)

blocks|key|1316108|text|这是一个用.NET实现的bittorrent协议，它的源代码可以在github上找到，还有文档|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1316109|Monotorrent|offset|length|1316110|entityMap|0|LINK|mutability|MUTABLE|url|http://www.monotorrent.com/^0|0|0|B|0|0^^$0|@$1|2|3|4|5|6|7|N|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|O|8|@]|9|@$D|P|E|Q|1|R]]|A|$]]|$1|F|3|-4|5|6|7|S|8|@]|9|@]|A|$]]]|G|$H|$5|I|J|K|A|$L|M]]]]

This is a implementation of the bittorrent protocol done in .NET. Its source code is available on github and it has documentation

<a href="http://www.monotorrent.com/" rel="nofollow">Monotorrent</a>

blocks|key|1316160|text|通过遵循规范来实现协议并不那么困难。然而，有很多内部的东西，如存储，可伸缩的服务器，对等/块挑选算法等。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1316161|早期的BitTorrent实现或BitTornado使用的是python，很容易阅读。我个人发现它们对理解内部结构很有用。|offset|length|1316162|entityMap|0|LINK|mutability|MUTABLE|url|http://www.bittornado.com/^0|0|G|A|0|0^^$0|@$1|2|3|4|5|6|7|N|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|O|8|@]|9|@$D|P|E|Q|1|R]]|A|$]]|$1|F|3|-4|5|6|7|S|8|@]|9|@]|A|$]]]|G|$H|$5|I|J|K|A|$L|M]]]]

Implementing the protocol is not that hard by following the specs. However, there are lots of internal things like storage, scalable server, peer/piece pick algorithm, etc. 

Earlier BitTorrent implementation or <a href="http://www.bittornado.com" rel="nofollow">BitTornado</a> used python, which is easy to read. I personally found them useful to understand the internals.

I am looking for a tutorial/blog post on how to implement bittorrent protocol step by step.
How it works? How do you make requests to peers? and talk to trackers.

I do not mind the programming language (java,ruby,perl,c#)

Implementing Bittorrent Protocol

服务器

Java

我正在寻找一篇关于如何逐步实现bittorrent协议的教程/博客文章。它是如何工作的？您如何向同级发出请求？和追踪者交流。我不介意编程语言(java、ruby、perl、c#)。

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