add download_blob_from_peer.py

scripts/download_blob_from_peer.py

@@ -0,0 +1,43 @@
+import sys
+import os
+import asyncio
+import socket
+from lbrynet.conf import Config
+from lbrynet.extras.daemon.storage import SQLiteStorage
+from lbrynet.blob.blob_manager import BlobFileManager
+from lbrynet.blob_exchange.client import BlobExchangeClientProtocol, request_blob
+import logging
+
+log = logging.getLogger("lbrynet")
+log.addHandler(logging.StreamHandler())
+log.setLevel(logging.DEBUG)
+
+
+async def main(blob_hash: str, url: str):
+    conf = Config()
+    loop = asyncio.get_running_loop()
+    host_url, port = url.split(":")
+    host_info = await loop.getaddrinfo(
+        host_url, 'https',
+        proto=socket.IPPROTO_TCP,
+    )
+    host = host_info[0][4][0]
+
+    storage = SQLiteStorage(conf, os.path.join(conf.data_dir, "lbrynet.sqlite"))
+    blob_manager = BlobFileManager(loop, os.path.join(conf.data_dir, "blobfiles"), storage)
+    await storage.open()
+    await blob_manager.setup()
+
+    blob = blob_manager.get_blob(blob_hash)
+    protocol = BlobExchangeClientProtocol(loop, conf.blob_download_timeout)
+    success, keep = await request_blob(loop, blob, protocol, host, int(port), conf.peer_connect_timeout)
+    print(success, keep)
+    if blob.get_is_verified():
+        await blob_manager.delete_blobs([blob.blob_hash])
+
+
+if __name__ == "__main__":  # usage: python download_blob_from_peer.py <blob_hash> [host url:port]
+    url = 'reflector.lbry.io:5567'
+    if len(sys.argv) > 2:
+        url = sys.argv[2]
+    asyncio.run(main(sys.argv[1], url))