Protocols » History » Revision 8
Revision 7 (Greg Burri, 11/09/2009 10:05 AM) → Revision 8/26 (Greg Burri, 11/09/2009 10:06 AM)
h1. Protocols * [[Protocol core-core]] * [[Protocol core-GUI]] There is two main protocols, one between cores and one between GUI and core. Both used "protocol buffers":http://code.google.com/p/protobuf/ for describing the exchanged messages. Each data sent over the network (using TCP or UDP) are formatted like this : <pre> <messageType:uint32><size:uint32><serializedMessage> </pre> Where : * _messageType_ is a number which determine the message type, more information in the proto files. * _size_ is the size of the following serialized message. * _serializedMessage_ is the data serialized by protocol buffer. h2. Links to resource Links can be shared across peers. It locates a remote resource like folder or file from a specific peer. It doesn't contain any chunk hash, thus the peer must be online to download a file or a folder. _ayb://[<peer name>][:<file id>][:<shared id>/<folder>/<file>]_ * <peer name> : Not required and not used to locate the resource, just an information for the user. * <file id> : its the n first group of nibble of the m first chunk where _n * m = 40 nibbles_ (20 octets). ** 20,87cace382f7371cd3fab3cb0a53b93b7cd9719f6 : 20 chunks of 2 nibbles. ** 8,05649bcbf065e0d032ada540d4a749d98db055cf : 8 chunks of 5 nibbles. * <shared id> : Contains only the beginning of the hash. h3. Character encoding TODO.. h3. Examples * _ayb://20,87cace382f7371cd3fab3cb0a53b93b7cd9719f6_ _ayb://20,87cace382f7371cd3fab3cb0a53b93b7cd9719f6 * _ayb://pierre:20,87cace382f7371cd3fab3cb0a53b93b7cd9719f6_ _ayb://pierre:20,87cace382f7371cd3fab3cb0a53b93b7cd9719f6 * _ayb://pierre:20,87cace382f7371cd3fab3cb0a53b93b7cd9719f6:dac4f75c/my%20movies/LOLCat.avi_ * _ayb://pierre:dac4f75c/my%20movies/LOLCat.avi_ * _ayb://pierre:dac4f75c/my%20movies_