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Projet_JAVA_P2P_STRI2A/doc/protocol.md

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P2P-JAVA-PROJECT version 1 (Protocol for step 1)

All messages begins with P2P-JAVA-PROJECT VERSION 1.0\n (this version of the protocol).

Client messages

  • LIST\n: ask the server to list files from server root directory
  • DOWNLOAD\n<FILENAME>\n: ask the server to download file from server root directory. Only one filename is allowed per request.

Server responses

  • The response to LIST request is in the format LIST\n<FILENAME 1>\n<FILENAME 2>\n[…]<LAST FILENAME>\n\n
  • The response to DOWNLOAD request is LOAD\n<FILESIZE (BYTES)>\n<CONTENT OF FILE> or NOT FOUND\n if the file doesn't exists.
  • The server send a PROTOCOL ERROR\n message if it doesn't understands what the client sent.
  • The server send a INTERNAL ERROR\n message if it encounters an internal error.