Merge pull request #2092 from lbryio/fix_announce_on_storage

Set should_announce=1 to head and descriptor blobs when saving a stream to database

lbrynet/extras/daemon/Components.py

@@ -63,7 +63,7 @@ class DatabaseComponent(Component):
 
     @staticmethod
     def get_current_db_revision():
-        return 9
+        return 10
 
     @property
     def revision_filename(self):

lbrynet/extras/daemon/migrator/migrate9to10.py

@@ -0,0 +1,20 @@
+import sqlite3
+import os
+
+
+def do_migration(conf):
+    db_path = os.path.join(conf.data_dir, "lbrynet.sqlite")
+    connection = sqlite3.connect(db_path)
+    cursor = connection.cursor()
+
+    query = "select stream_hash, sd_hash from main.stream"
+    for stream_hash, sd_hash in cursor.execute(query):
+        head_blob_hash = cursor.execute(
+            "select blob_hash from stream_blob where position = 0 and stream_hash = ?",
+            (stream_hash,)
+        ).fetchone()
+        if not head_blob_hash:
+            continue
+        cursor.execute("update blob set should_announce=1 where blob_hash in (?, ?)", (sd_hash, head_blob_hash[0],))
+    connection.commit()
+    connection.close()

lbrynet/extras/daemon/storage.py

@@ -153,20 +153,11 @@ def get_all_lbry_files(transaction: sqlite3.Connection) -> typing.List[typing.Di
 
 
 def store_stream(transaction: sqlite3.Connection, sd_blob: 'BlobFile', descriptor: 'StreamDescriptor'):
-    # add the head blob and set it to be announced
-    transaction.execute(
-        "insert or ignore into blob values (?, ?, ?, ?, ?, ?, ?),  (?, ?, ?, ?, ?, ?, ?)",
-        (
-            sd_blob.blob_hash, sd_blob.length, 0, 1, "pending", 0, 0,
-            descriptor.blobs[0].blob_hash, descriptor.blobs[0].length, 0, 1, "pending", 0, 0
-        )
-    )
-    # add the rest of the blobs with announcement off
-    if len(descriptor.blobs) > 2:
+    # add all blobs, except the last one, which is empty
     transaction.executemany(
         "insert or ignore into blob values (?, ?, ?, ?, ?, ?, ?)",
         [(blob.blob_hash, blob.length, 0, 0, "pending", 0, 0)
-             for blob in descriptor.blobs[1:-1]]
+         for blob in (descriptor.blobs[:-1] if len(descriptor.blobs) > 1 else descriptor.blobs) + [sd_blob]]
     )
     # associate the blobs to the stream
     transaction.execute("insert or ignore into stream values (?, ?, ?, ?, ?)",
@@ -179,6 +170,11 @@ def store_stream(transaction: sqlite3.Connection, sd_blob: 'BlobFile', descripto
         [(descriptor.stream_hash, blob.blob_hash, blob.blob_num, blob.iv)
          for blob in descriptor.blobs]
     )
+    # ensure should_announce is set regardless if insert was ignored
+    transaction.execute(
+        "update blob set should_announce=1 where blob_hash in (?, ?)",
+        (sd_blob.blob_hash, descriptor.blobs[0].blob_hash,)
+    )
 
 
 def delete_stream(transaction: sqlite3.Connection, descriptor: 'StreamDescriptor'):

tests/integration/test_file_commands.py

@@ -28,6 +28,24 @@ class FileCommands(CommandTestCase):
         await self.daemon.jsonrpc_get('lbry://foo')
         self.assertEqual(len(self.daemon.jsonrpc_file_list()), 1)
 
+    async def test_announces(self):
+        # announces on publish
+        self.assertEqual(await self.daemon.storage.get_blobs_to_announce(), [])
+        await self.stream_create('foo', '0.01')
+        stream = self.daemon.jsonrpc_file_list()[0]
+        self.assertSetEqual(
+            set(await self.daemon.storage.get_blobs_to_announce()),
+            {stream.sd_hash, stream.descriptor.blobs[0].blob_hash}
+        )
+        self.assertTrue(await self.daemon.jsonrpc_file_delete(delete_all=True))
+        # announces on download
+        self.assertEqual(await self.daemon.storage.get_blobs_to_announce(), [])
+        stream = await self.daemon.jsonrpc_get('foo')
+        self.assertSetEqual(
+            set(await self.daemon.storage.get_blobs_to_announce()),
+            {stream.sd_hash, stream.descriptor.blobs[0].blob_hash}
+        )
+
     async def test_file_list_fields(self):
         await self.stream_create('foo', '0.01')
         file_list = self.sout(self.daemon.jsonrpc_file_list())

tests/unit/stream/test_managed_stream.py

@@ -151,26 +151,6 @@ class TestManagedStream(BlobExchangeTestBase):
     async def test_create_and_decrypt_multi_blob_stream(self):
         await self.test_create_and_decrypt_one_blob_stream(10)
 
-    # async def test_create_managed_stream_announces(self):
-    #     # setup a blob manager
-    #     storage = SQLiteStorage(Config(), ":memory:")
-    #     await storage.open()
-    #     tmp_dir = tempfile.mkdtemp()
-    #     self.addCleanup(lambda: shutil.rmtree(tmp_dir))
-    #     blob_manager = BlobManager(self.loop, tmp_dir, storage)
-    #     stream_manager = StreamManager(self.loop, Config(), blob_manager, None, storage, None)
-    #     # create the stream
-    #     download_dir = tempfile.mkdtemp()
-    #     self.addCleanup(lambda: shutil.rmtree(download_dir))
-    #     file_path = os.path.join(download_dir, "test_file")
-    #     with open(file_path, 'wb') as f:
-    #         f.write(b'testtest')
-    #
-    #     stream = await stream_manager.create_stream(file_path)
-    #     self.assertEqual(
-    #         [stream.sd_hash, stream.descriptor.blobs[0].blob_hash],
-    #         await storage.get_blobs_to_announce())
-
     # async def test_create_truncate_and_handle_stream(self):
     #     # The purpose of this test is just to make sure it can finish even if a blob is corrupt/truncated
     #     await asyncio.wait_for(self.test_create_and_decrypt_one_blob_stream(corrupt=True), timeout=5)

tests/unit/stream/test_reflector.py

@@ -62,3 +62,8 @@ class TestStreamAssembler(AsyncioTestCase):
 
         sent = await self.stream.upload_to_reflector('127.0.0.1', 5566)
         self.assertListEqual(sent, [])
+
+    async def test_announces(self):
+        to_announce = await self.storage.get_blobs_to_announce()
+        self.assertIn(self.stream.sd_hash, to_announce, "sd blob not set to announce")
+        self.assertIn(self.stream.descriptor.blobs[0].blob_hash, to_announce, "head blob not set to announce")