283 lines
12 KiB
Python
283 lines
12 KiB
Python
# Included modules
|
|
import os
|
|
from cStringIO import StringIO
|
|
|
|
# Third party modules
|
|
import gevent
|
|
|
|
from Debug import Debug
|
|
from Config import config
|
|
from util import RateLimit
|
|
from util import StreamingMsgpack
|
|
from util import helper
|
|
|
|
FILE_BUFF = 1024 * 512
|
|
|
|
|
|
# Request from me
|
|
class FileRequest(object):
|
|
__slots__ = ("server", "connection", "req_id", "sites", "log", "responded")
|
|
|
|
def __init__(self, server, connection):
|
|
self.server = server
|
|
self.connection = connection
|
|
|
|
self.req_id = None
|
|
self.sites = self.server.sites
|
|
self.log = server.log
|
|
self.responded = False # Responded to the request
|
|
|
|
def send(self, msg, streaming=False):
|
|
if not self.connection.closed:
|
|
self.connection.send(msg, streaming)
|
|
|
|
def sendRawfile(self, file, read_bytes):
|
|
if not self.connection.closed:
|
|
self.connection.sendRawfile(file, read_bytes)
|
|
|
|
def response(self, msg, streaming=False):
|
|
if self.responded:
|
|
self.log.debug("Req id %s already responded" % self.req_id)
|
|
return
|
|
if not isinstance(msg, dict): # If msg not a dict create a {"body": msg}
|
|
msg = {"body": msg}
|
|
msg["cmd"] = "response"
|
|
msg["to"] = self.req_id
|
|
self.responded = True
|
|
self.send(msg, streaming=streaming)
|
|
|
|
# Route file requests
|
|
def route(self, cmd, req_id, params):
|
|
self.req_id = req_id
|
|
|
|
if cmd == "getFile":
|
|
self.actionGetFile(params)
|
|
elif cmd == "streamFile":
|
|
self.actionStreamFile(params)
|
|
elif cmd == "update":
|
|
event = "%s update %s %s" % (self.connection.id, params["site"], params["inner_path"])
|
|
if not RateLimit.isAllowed(event): # There was already an update for this file in the last 10 second
|
|
self.response({"ok": "File update queued"})
|
|
# If called more than once within 10 sec only keep the last update
|
|
RateLimit.callAsync(event, 10, self.actionUpdate, params)
|
|
|
|
elif cmd == "pex":
|
|
self.actionPex(params)
|
|
elif cmd == "listModified":
|
|
self.actionListModified(params)
|
|
elif cmd == "getHashfield":
|
|
self.actionGetHashfield(params)
|
|
elif cmd == "ping":
|
|
self.actionPing()
|
|
else:
|
|
self.actionUnknown(cmd, params)
|
|
|
|
# Update a site file request
|
|
def actionUpdate(self, params):
|
|
site = self.sites.get(params["site"])
|
|
if not site or not site.settings["serving"]: # Site unknown or not serving
|
|
self.response({"error": "Unknown site"})
|
|
return False
|
|
if site.settings["own"] and params["inner_path"].endswith("content.json"):
|
|
self.log.debug(
|
|
"Someone trying to push a file to own site %s, reload local %s first" %
|
|
(site.address, params["inner_path"])
|
|
)
|
|
changed, deleted = site.content_manager.loadContent(params["inner_path"], add_bad_files=False)
|
|
if changed or deleted: # Content.json changed locally
|
|
site.settings["size"] = site.content_manager.getTotalSize() # Update site size
|
|
buff = StringIO(params["body"])
|
|
valid = site.content_manager.verifyFile(params["inner_path"], buff)
|
|
if valid is True: # Valid and changed
|
|
self.log.info("Update for %s looks valid, saving..." % params["inner_path"])
|
|
buff.seek(0)
|
|
site.storage.write(params["inner_path"], buff)
|
|
|
|
site.onFileDone(params["inner_path"]) # Trigger filedone
|
|
|
|
if params["inner_path"].endswith("content.json"): # Download every changed file from peer
|
|
peer = site.addPeer(self.connection.ip, self.connection.port, return_peer=True) # Add or get peer
|
|
# On complete publish to other peers
|
|
site.onComplete.once(lambda: site.publish(inner_path=params["inner_path"]), "publish_%s" % params["inner_path"])
|
|
|
|
# Load new content file and download changed files in new thread
|
|
gevent.spawn(
|
|
lambda: site.downloadContent(params["inner_path"], peer=peer)
|
|
)
|
|
|
|
self.response({"ok": "Thanks, file %s updated!" % params["inner_path"]})
|
|
|
|
elif valid is None: # Not changed
|
|
peer = site.addPeer(*params["peer"], return_peer=True) # Add or get peer
|
|
if peer:
|
|
self.log.debug(
|
|
"Same version, adding new peer for locked files: %s, tasks: %s" %
|
|
(peer.key, len(site.worker_manager.tasks))
|
|
)
|
|
for task in site.worker_manager.tasks: # New peer add to every ongoing task
|
|
if task["peers"]:
|
|
# Download file from this peer too if its peer locked
|
|
site.needFile(task["inner_path"], peer=peer, update=True, blocking=False)
|
|
|
|
self.response({"ok": "File not changed"})
|
|
|
|
else: # Invalid sign or sha1 hash
|
|
self.log.debug("Update for %s is invalid" % params["inner_path"])
|
|
self.response({"error": "File invalid"})
|
|
|
|
# Send file content request
|
|
def actionGetFile(self, params):
|
|
site = self.sites.get(params["site"])
|
|
if not site or not site.settings["serving"]: # Site unknown or not serving
|
|
self.response({"error": "Unknown site"})
|
|
return False
|
|
try:
|
|
file_path = site.storage.getPath(params["inner_path"])
|
|
if config.debug_socket:
|
|
self.log.debug("Opening file: %s" % file_path)
|
|
with StreamingMsgpack.FilePart(file_path, "rb") as file:
|
|
file.seek(params["location"])
|
|
file.read_bytes = FILE_BUFF
|
|
file_size = os.fstat(file.fileno()).st_size
|
|
assert params["location"] < file_size
|
|
|
|
back = {
|
|
"body": file,
|
|
"size": file_size,
|
|
"location": min(file.tell() + FILE_BUFF, file_size)
|
|
}
|
|
if config.debug_socket:
|
|
self.log.debug(
|
|
"Sending file %s from position %s to %s" %
|
|
(file_path, params["location"], back["location"])
|
|
)
|
|
self.response(back, streaming=True)
|
|
|
|
bytes_sent = min(FILE_BUFF, file_size - params["location"]) # Number of bytes we going to send
|
|
site.settings["bytes_sent"] = site.settings.get("bytes_sent", 0) + bytes_sent
|
|
if config.debug_socket:
|
|
self.log.debug("File %s at position %s sent %s bytes" % (file_path, params["location"], bytes_sent))
|
|
|
|
# Add peer to site if not added before
|
|
connected_peer = site.addPeer(self.connection.ip, self.connection.port)
|
|
if connected_peer: # Just added
|
|
connected_peer.connect(self.connection) # Assign current connection to peer
|
|
|
|
except Exception, err:
|
|
self.log.debug("GetFile read error: %s" % Debug.formatException(err))
|
|
self.response({"error": "File read error: %s" % Debug.formatException(err)})
|
|
return False
|
|
|
|
# New-style file streaming out of Msgpack context
|
|
def actionStreamFile(self, params):
|
|
site = self.sites.get(params["site"])
|
|
if not site or not site.settings["serving"]: # Site unknown or not serving
|
|
self.response({"error": "Unknown site"})
|
|
return False
|
|
try:
|
|
if config.debug_socket:
|
|
self.log.debug("Opening file: %s" % params["inner_path"])
|
|
with site.storage.open(params["inner_path"]) as file:
|
|
file.seek(params["location"])
|
|
file_size = os.fstat(file.fileno()).st_size
|
|
stream_bytes = min(FILE_BUFF, file_size - params["location"])
|
|
assert stream_bytes >= 0
|
|
|
|
back = {
|
|
"size": file_size,
|
|
"location": min(file.tell() + FILE_BUFF, file_size),
|
|
"stream_bytes": stream_bytes
|
|
}
|
|
if config.debug_socket:
|
|
self.log.debug(
|
|
"Sending file %s from position %s to %s" %
|
|
(params["inner_path"], params["location"], back["location"])
|
|
)
|
|
self.response(back)
|
|
self.sendRawfile(file, read_bytes=FILE_BUFF)
|
|
|
|
site.settings["bytes_sent"] = site.settings.get("bytes_sent", 0) + stream_bytes
|
|
if config.debug_socket:
|
|
self.log.debug("File %s at position %s sent %s bytes" % (params["inner_path"], params["location"], stream_bytes))
|
|
|
|
# Add peer to site if not added before
|
|
connected_peer = site.addPeer(self.connection.ip, self.connection.port)
|
|
if connected_peer: # Just added
|
|
connected_peer.connect(self.connection) # Assign current connection to peer
|
|
|
|
except Exception, err:
|
|
self.log.debug("GetFile read error: %s" % Debug.formatException(err))
|
|
self.response({"error": "File read error: %s" % Debug.formatException(err)})
|
|
return False
|
|
|
|
# Peer exchange request
|
|
def actionPex(self, params):
|
|
site = self.sites.get(params["site"])
|
|
if not site or not site.settings["serving"]: # Site unknown or not serving
|
|
self.response({"error": "Unknown site"})
|
|
return False
|
|
|
|
got_peer_keys = []
|
|
added = 0
|
|
|
|
# Add requester peer to site
|
|
connected_peer = site.addPeer(self.connection.ip, self.connection.port)
|
|
if connected_peer: # It was not registered before
|
|
added += 1
|
|
connected_peer.connect(self.connection) # Assign current connection to peer
|
|
|
|
# Add sent peers to site
|
|
for packed_address in params["peers"]:
|
|
address = helper.unpackAddress(packed_address)
|
|
got_peer_keys.append("%s:%s" % address)
|
|
if site.addPeer(*address):
|
|
added += 1
|
|
|
|
# Send back peers that is not in the sent list and connectable (not port 0)
|
|
packed_peers = [peer.packMyAddress() for peer in site.getConnectablePeers(params["need"], got_peer_keys)]
|
|
if added:
|
|
site.worker_manager.onPeers()
|
|
self.log.debug("Added %s peers to %s using pex, sending back %s" % (added, site, len(packed_peers)))
|
|
self.response({"peers": packed_peers})
|
|
|
|
# Get modified content.json files since
|
|
def actionListModified(self, params):
|
|
site = self.sites.get(params["site"])
|
|
if not site or not site.settings["serving"]: # Site unknown or not serving
|
|
self.response({"error": "Unknown site"})
|
|
return False
|
|
modified_files = {
|
|
inner_path: content["modified"]
|
|
for inner_path, content in site.content_manager.contents.iteritems()
|
|
if content["modified"] > params["since"]
|
|
}
|
|
|
|
# Add peer to site if not added before
|
|
connected_peer = site.addPeer(self.connection.ip, self.connection.port)
|
|
if connected_peer: # Just added
|
|
connected_peer.connect(self.connection) # Assign current connection to peer
|
|
|
|
self.response({"modified_files": modified_files})
|
|
|
|
def actionGetHashfield(self, params):
|
|
site = self.sites.get(params["site"])
|
|
if not site or not site.settings["serving"]: # Site unknown or not serving
|
|
self.response({"error": "Unknown site"})
|
|
return False
|
|
|
|
# Add peer to site if not added before
|
|
connected_peer = site.addPeer(self.connection.ip, self.connection.port)
|
|
if connected_peer: # Just added
|
|
connected_peer.connect(self.connection) # Assign current connection to peer
|
|
|
|
self.response({"hashfield_raw": site.content_manager.hashfield.tostring()})
|
|
|
|
|
|
# Send a simple Pong! answer
|
|
def actionPing(self):
|
|
self.response("Pong!")
|
|
|
|
# Unknown command
|
|
def actionUnknown(self, cmd, params):
|
|
self.response({"error": "Unknown command: %s" % cmd})
|