logging, cleanup

lbrynet/blob_exchange/client.py

@@ -19,15 +19,14 @@ class BlobExchangeClientProtocol(asyncio.Protocol):
 
         self.writer: 'HashBlobWriter' = None
         self.blob: 'BlobFile' = None
-        self.download_running = asyncio.Event(loop=self.loop)
 
         self._blob_bytes_received = 0
         self._response_fut: asyncio.Future = None
         self._request_lock = asyncio.Lock(loop=self.loop)
 
-    def handle_data_received(self, data: bytes):
-        if self.transport.is_closing():
-            if self._response_fut and not (self._response_fut.done() or self._response_fut.cancelled()):
+    def data_received(self, data: bytes):
+        if self.transport.is_closing():  # TODO: is this needed?
+            if self._response_fut and not self._response_fut.done():
                 self._response_fut.cancel()
             return
 
@@ -36,27 +35,36 @@ class BlobExchangeClientProtocol(asyncio.Protocol):
         if response.responses and self.blob:
             blob_response = response.get_blob_response()
             if blob_response and not blob_response.error and blob_response.blob_hash == self.blob.blob_hash:
+                # set the expected length for the incoming blob if we didn't know it
                 self.blob.set_length(blob_response.length)
             elif blob_response and not blob_response.error and self.blob.blob_hash != blob_response.blob_hash:
+                # the server started sending a blob we didn't request
                 log.warning("mismatch with self.blob %s", self.blob.blob_hash)
                 return
         if response.responses:
+            log.debug("got response from %s:%i <- %s", self.peer_address, self.peer_port, response.to_dict())
+            # fire the Future with the response to our request
             self._response_fut.set_result(response)
         if response.blob_data and self.writer and not self.writer.closed():
+            log.debug("got %i blob bytes from %s:%i", len(response.blob_data), self.peer_address, self.peer_port)
+            # write blob bytes if we're writing a blob and have blob bytes to write
             self._blob_bytes_received += len(response.blob_data)
             try:
                 self.writer.write(response.blob_data)
+                return
             except IOError as err:
-                log.error("error downloading blob: %s", err)
-
-    def data_received(self, data):
-        try:
-            return self.handle_data_received(data)
-        except (asyncio.CancelledError, asyncio.TimeoutError) as err:
+                log.error("error downloading blob from %s:%i: %s", self.peer_address, self.peer_port, err)
+                if self._response_fut and not self._response_fut.done():
+                    self._response_fut.set_exception(err)
+            except (asyncio.CancelledError, asyncio.TimeoutError) as err:  # TODO: is this needed?
+                log.error("%s downloading blob from %s:%i", str(err), self.peer_address, self.peer_port)
                 if self._response_fut and not self._response_fut.done():
                     self._response_fut.set_exception(err)
 
     async def _download_blob(self) -> typing.Tuple[bool, bool]:
+        """
+        :return: download success (bool), keep connection (bool)
+        """
         request = BlobRequest.make_request_for_blob_hash(self.blob.blob_hash)
         try:
             msg = request.serialize()
@@ -109,7 +117,6 @@ class BlobExchangeClientProtocol(asyncio.Protocol):
             self.writer.close_handle()
         if self.blob:
             await self.blob.close()
-        self.download_running.clear()
         self._response_fut = None
         self.writer = None
         self.blob = None
@@ -122,11 +129,7 @@ class BlobExchangeClientProtocol(asyncio.Protocol):
             return False, True
         async with self._request_lock:
             try:
-                if self.download_running.is_set():
-                    log.info("wait for download already running")
-                    await self.download_running.wait()
                 self.blob, self.writer, self._blob_bytes_received = blob, blob.open_for_writing(), 0
-                self.download_running.set()
                 self._response_fut = asyncio.Future(loop=self.loop)
                 return await self._download_blob()
             except OSError:
@@ -161,9 +164,6 @@ async def request_blob(loop: asyncio.BaseEventLoop, blob: 'BlobFile', protocol:
     """
     if blob.get_is_verified():
         return False, True
-    if blob.get_is_verified():
-        log.info("already verified")
-        return False, True
     try:
         await asyncio.wait_for(loop.create_connection(lambda: protocol, address, tcp_port),
                                peer_connect_timeout, loop=loop)

lbrynet/stream/downloader.py

@@ -51,7 +51,7 @@ class StreamDownloader(StreamAssembler):  # TODO: reduce duplication, refactor t
 
     async def _request_blob(self, peer: 'KademliaPeer'):
         if self.current_blob.get_is_verified():
-            log.info("already verified")
+            log.debug("already verified")
             return
         if peer not in self.active_connections:
             log.warning("not active, adding: %s", str(peer))
@@ -61,12 +61,12 @@ class StreamDownloader(StreamAssembler):  # TODO: reduce duplication, refactor t
                                                       peer.address, peer.tcp_port, self.peer_connect_timeout)
         await protocol.close()
         if not keep_connection:
-            log.info("drop peer %s:%i", peer.address, peer.tcp_port)
+            log.debug("drop peer %s:%i", peer.address, peer.tcp_port)
             if peer in self.active_connections:
                 async with self._lock:
                     del self.active_connections[peer]
             return
-        log.info("keep peer %s:%i", peer.address, peer.tcp_port)
+        log.debug("keep peer %s:%i", peer.address, peer.tcp_port)
 
     def _update_requests(self):
         self.new_peer_event.clear()
@@ -77,7 +77,7 @@ class StreamDownloader(StreamAssembler):  # TODO: reduce duplication, refactor t
             if peer not in self.requested_from[self.current_blob.blob_hash] and peer not in to_add:
                 to_add.append(peer)
         if to_add or self.running_download_requests:
-            log.info("adding download probes for %i peers to %i already active",
+            log.debug("adding download probes for %i peers to %i already active",
                       min(len(to_add), 8 - len(self.running_download_requests)),
                       len(self.running_download_requests))
         else:
@@ -176,9 +176,7 @@ class StreamDownloader(StreamAssembler):  # TODO: reduce duplication, refactor t
         try:
             async with node.stream_peer_search_junction(blob_queue) as search_junction:
                 async for peers in search_junction:
-                    if not isinstance(peers, list):  # TODO: what's up with this?
-                        log.error("not a list: %s %s", peers, str(type(peers)))
-                    else:
+                    if peers:
                         self._add_peer_protocols(peers)
                         if not added_peers.is_set():
                             added_peers.set()

lbrynet/stream/managed_stream.py

@@ -30,7 +30,6 @@ class ManagedStream:
         self.stream_hash = descriptor.stream_hash
         self.stream_claim_info = claim
         self._status = status
-        self._store_after_finished: asyncio.Task = None
         self.fully_reflected = asyncio.Event(loop=self.loop)
 
     @property