Merge branch 'master' into improve-install-md

docker/Dockerfile.wallet_server

@@ -13,6 +13,7 @@ RUN apt-get update && \
       wget \
       tar unzip \
       build-essential \
+      automake libtool \
       pkg-config \
       libleveldb-dev \
       python3.7 \

docker/Dockerfile.web

@@ -11,6 +11,7 @@ ENV DOCKER_TAG=$DOCKER_TAG DOCKER_COMMIT=$DOCKER_COMMIT
 RUN apt-get update && \
     apt-get -y --no-install-recommends install \
       wget \
+      automake libtool \
       tar unzip \
       build-essential \
       pkg-config \

lbry/extras/daemon/components.py

@@ -481,6 +481,10 @@ async def _maintain_redirects(self):
             log.info("external ip changed from %s to %s", self.external_ip, external_ip)
         if external_ip:
             self.external_ip = external_ip
+            dht_component = self.component_manager.get_component(DHT_COMPONENT)
+            if dht_component:
+                dht_node = dht_component.component
+                dht_node.protocol.external_ip = external_ip
         # assert self.external_ip is not None   # TODO: handle going/starting offline
 
         if not self.upnp_redirects and self.upnp:  # setup missing redirects

lbry/extras/daemon/exchange_rate_manager.py

@@ -186,7 +186,7 @@ class UPbitBTCFeed(MarketFeed):
     params = {"markets": "BTC-LBC"}
 
     def get_rate_from_response(self, json_response):
-        if len(json_response) != 1 or 'trade_price' not in json_response[0]:
+        if "error" in json_response or len(json_response) != 1 or 'trade_price' not in json_response[0]:
             raise InvalidExchangeRateResponseError(self.name, 'result not found')
         return 1.0 / float(json_response[0]['trade_price'])
 

lbry/wallet/account.py

@@ -96,7 +96,8 @@ async def get_addresses(self, only_usable: bool = False, **constraints) -> List[
         return [r['address'] for r in records]
 
     async def get_or_create_usable_address(self) -> str:
-        addresses = await self.get_addresses(only_usable=True, limit=10)
+        async with self.address_generator_lock:
+            addresses = await self.get_addresses(only_usable=True, limit=10)
         if addresses:
             return random.choice(addresses)
         addresses = await self.ensure_address_gap()

scripts/download_blob_from_peer.py

@@ -1,3 +1,19 @@
+"""A simple script that attempts to directly download a single blob.
+
+To Do:
+------
+Currently `lbrynet blob get <hash>` does not work to download single blobs
+which are not already present in the system. The function locks up and
+never returns.
+It only works for blobs that are in the `blobfiles` directory already.
+
+This bug is reported in lbryio/lbry-sdk, issue #2070.
+
+Maybe this script can be investigated, and certain parts can be added to
+`lbry.extras.daemon.daemon.jsonrpc_blob_get`
+in order to solve the previous issue, and finally download single blobs
+from the network (peers or reflector servers).
+"""
 import sys
 import os
 import asyncio
@@ -47,7 +63,11 @@ async def main(blob_hash: str, url: str):
         print(f"deleted {blob_hash}")
 
 
-if __name__ == "__main__":  # usage: python download_blob_from_peer.py <blob_hash> [host url:port]
+if __name__ == "__main__":
+    if len(sys.argv) < 2:
+        print("usage: download_blob_from_peer.py <blob_hash> [host_url:port]")
+        sys.exit(1)
+
     url = 'reflector.lbry.com:5567'
     if len(sys.argv) > 2:
         url = sys.argv[2]

scripts/troubleshoot_p2p_and_dht_webservice.py

@@ -0,0 +1,71 @@
+import asyncio
+from aiohttp import web
+
+from lbry.blob_exchange.serialization import BlobRequest, BlobResponse
+from lbry.dht.constants import generate_id
+from lbry.dht.node import Node
+from lbry.dht.peer import make_kademlia_peer, PeerManager
+from lbry.extras.daemon.storage import SQLiteStorage
+
+loop = asyncio.get_event_loop()
+NODE = Node(
+    loop, PeerManager(loop), generate_id(), 60600, 60600, 3333, None,
+    storage=SQLiteStorage(None, ":memory:", loop, loop.time)
+)
+
+
+async def check_p2p(ip, port):
+    writer = None
+    try:
+        reader, writer = await asyncio.open_connection(ip, port)
+        writer.write(BlobRequest.make_request_for_blob_hash('0'*96).serialize())
+        return BlobResponse.deserialize(await reader.readuntil(b'}')).get_address_response().lbrycrd_address
+    except OSError:
+        return None
+    finally:
+        if writer:
+            writer.close()
+            await writer.wait_closed()
+
+
+async def check_dht(ip, port):
+    peer = make_kademlia_peer(None, ip, udp_port=int(port))
+    return await NODE.protocol.get_rpc_peer(peer).ping()
+
+
+async def endpoint_p2p(request):
+    p2p_port = request.match_info.get('p2p_port', "3333")
+    try:
+        address = await asyncio.wait_for(check_p2p(request.remote, p2p_port), 3)
+    except asyncio.TimeoutError:
+        address = None
+    return {"status": address is not None, "port": p2p_port, "payment_address": address}
+
+
+async def endpoint_dht(request):
+    dht_port = request.match_info.get('dht_port', "3333")
+    try:
+        response = await check_dht(request.remote, dht_port)
+    except asyncio.TimeoutError:
+        response = None
+    return {"status": response == b'pong', "port": dht_port}
+
+
+async def endpoint_default(request):
+    return {"dht_status": await endpoint_dht(request), "p2p_status": await endpoint_p2p(request)}
+
+
+def as_json_response_wrapper(endpoint):
+    async def json_endpoint(*args, **kwargs):
+        return web.json_response(await endpoint(*args, **kwargs))
+    return json_endpoint
+
+
+app = web.Application()
+app.add_routes([web.get('/', as_json_response_wrapper(endpoint_default)),
+                web.get('/dht/{dht_port}', as_json_response_wrapper(endpoint_dht)),
+                web.get('/p2p/{p2p_port}', as_json_response_wrapper(endpoint_p2p))])
+
+if __name__ == '__main__':
+    loop.create_task(NODE.start_listening("0.0.0.0"))
+    web.run_app(app, port=60666)

tests/unit/dht/test_node.py

@@ -1,4 +1,5 @@
 import asyncio
+import time
 import unittest
 import typing
 from lbry.testcase import AsyncioTestCase
@@ -92,11 +93,11 @@ async def test_ping_queue_discover(self):
 
 
 class TestTemporarilyLosingConnection(AsyncioTestCase):
-    @unittest.SkipTest
+    TIMEOUT = None  # not supported as it advances time
     async def test_losing_connection(self):
         async def wait_for(check_ok, insist, timeout=20):
-            start = loop.time()
-            while loop.time() - start < timeout:
+            start = time.time()
+            while time.time() - start < timeout:
                 if check_ok():
                     break
                 await asyncio.sleep(0)

tests/unit/wallet/test_account.py

@@ -1,3 +1,4 @@
+import asyncio
 from binascii import hexlify
 from lbry.testcase import AsyncioTestCase
 from lbry.wallet import Wallet, Ledger, Database, Headers, Account, SingleKey, HierarchicalDeterministic
@@ -37,6 +38,18 @@ async def test_generate_account(self):
         addresses = await account.change.get_addresses()
         self.assertEqual(len(addresses), 6)
 
+    async def test_unused_address_on_account_creation_does_not_cause_a_race(self):
+        account = Account.generate(self.ledger, Wallet(), 'lbryum')
+        await account.ledger.db.db.executescript("update pubkey_address set used_times=10")
+        await account.receiving.address_generator_lock.acquire()
+        delayed1 = asyncio.ensure_future(account.receiving.ensure_address_gap())
+        delayed = asyncio.ensure_future(account.receiving.get_or_create_usable_address())
+        await asyncio.sleep(0)
+        # wallet being created and queried at the same time
+        account.receiving.address_generator_lock.release()
+        await delayed1
+        await delayed
+
     async def test_generate_keys_over_batch_threshold_saves_it_properly(self):
         account = Account.generate(self.ledger, Wallet(), 'lbryum')
         async with account.receiving.address_generator_lock: