Merge pull request #6421 from drew2a/refactoring/merge_libtorrent

Merge libtorrent module and component

experiment/popularity_community/initial_filling.py

@@ -13,7 +13,7 @@
 from ipv8.peerdiscovery.discovery import RandomWalk
 from ipv8_service import IPv8
 from tribler_core.components.ipv8.ipv8_component import Ipv8Component
-from tribler_core.components.libtorrent import LibtorrentComponent
+from tribler_core.components.libtorrent.libtorrent_component import LibtorrentComponent
 from tribler_core.components.masterkey.masterkey_component import MasterKeyComponent
 from tribler_core.components.metadata_store.metadata_store_component import MetadataStoreComponent
 from tribler_core.components.popularity import PopularityComponent

src/seedbox/disseminator.py

@@ -30,14 +30,14 @@
 from tribler_core.components.gigachannel.gigachannel_component import GigaChannelComponent
 from tribler_core.components.gigachannel_manager.gigachannel_manager_component import GigachannelManagerComponent
 from tribler_core.components.ipv8.ipv8_component import Ipv8Component
-from tribler_core.components.libtorrent import LibtorrentComponent
+from tribler_core.components.libtorrent.libtorrent_component import LibtorrentComponent
 from tribler_core.components.masterkey.masterkey_component import MasterKeyComponent
 from tribler_core.components.metadata_store.db.orm_bindings.channel_node import NEW
 from tribler_core.components.metadata_store.metadata_store_component import MetadataStoreComponent
 from tribler_core.components.restapi import RESTComponent
 from tribler_core.components.socks_configurator import SocksServersComponent
 from tribler_core.config.tribler_config import TriblerConfig
-from tribler_core.modules.libtorrent.torrentdef import TorrentDef
+from tribler_core.components.libtorrent.torrentdef import TorrentDef
 from tribler_core.utilities.tiny_tribler_service import TinyTriblerService
 
 # fmt: off

src/tribler-core/tribler_core/components/gigachannel_manager/gigachannel_manager.py

@@ -8,9 +8,9 @@
 
 from tribler_common.simpledefs import DLSTATUS_SEEDING, NTFY
 
-from tribler_core.modules.libtorrent.download_config import DownloadConfig
-from tribler_core.modules.libtorrent.download_manager import DownloadManager
-from tribler_core.modules.libtorrent.torrentdef import TorrentDef
+from tribler_core.components.libtorrent.download_manager.download_config import DownloadConfig
+from tribler_core.components.libtorrent.download_manager.download_manager import DownloadManager
+from tribler_core.components.libtorrent.torrentdef import TorrentDef
 from tribler_core.components.metadata_store.db.orm_bindings.channel_node import COMMITTED
 from tribler_core.components.metadata_store.db.serialization import CHANNEL_TORRENT
 from tribler_core.components.metadata_store.db.store import MetadataStore

src/tribler-core/tribler_core/components/gigachannel_manager/gigachannel_manager_component.py

@@ -1,5 +1,5 @@
 from tribler_core.components.gigachannel_manager.gigachannel_manager import GigaChannelManager
-from tribler_core.components.libtorrent import LibtorrentComponent
+from tribler_core.components.libtorrent.libtorrent_component import LibtorrentComponent
 from tribler_core.components.metadata_store.metadata_store_component import MetadataStoreComponent
 from tribler_core.components.restapi import RestfulComponent
 

src/tribler-core/tribler_core/components/gigachannel_manager/tests/test_gigachannel_manager.py

@@ -12,7 +12,7 @@
 
 from tribler_common.simpledefs import DLSTATUS_SEEDING
 
-from tribler_core.modules.libtorrent.torrentdef import TorrentDef
+from tribler_core.components.libtorrent.torrentdef import TorrentDef
 from tribler_core.components.gigachannel_manager.gigachannel_manager import GigaChannelManager
 from tribler_core.components.metadata_store.db.orm_bindings.channel_node import NEW
 from tribler_core.tests.tools.base_test import MockObject
@@ -104,7 +104,7 @@ async def mock_remove_download(download_obj, **_):
     # Test regenerating a non-empty channel
     gigachannel_manager.updated_my_channel = Mock()
     metadata_store.ChannelMetadata.consolidate_channel_torrent = lambda *_: Mock()
-    with patch("tribler_core.modules.libtorrent.torrentdef.TorrentDef.load_from_dict"):
+    with patch("tribler_core.components.libtorrent.torrentdef.TorrentDef.load_from_dict"):
         await gigachannel_manager.regenerate_channel_torrent(chan_pk, chan_id)
         gigachannel_manager.updated_my_channel.assert_called_once()
 

src/tribler-core/tribler_core/components/gigachannel_manager/tests/test_gigachannel_manager_component.py

@@ -1,15 +1,12 @@
-from unittest.mock import patch
-
 import pytest
 
 from tribler_core.components.base import Session
 from tribler_core.components.gigachannel_manager.gigachannel_manager_component import GigachannelManagerComponent
-from tribler_core.components.libtorrent import LibtorrentComponent
+from tribler_core.components.libtorrent.libtorrent_component import LibtorrentComponent
 from tribler_core.components.masterkey.masterkey_component import MasterKeyComponent
 from tribler_core.components.metadata_store.metadata_store_component import MetadataStoreComponent
 from tribler_core.components.restapi import RESTComponent
 from tribler_core.components.socks_configurator import SocksServersComponent
-from tribler_core.restapi.rest_manager import RESTManager
 
 
 # pylint: disable=protected-access

src/tribler-core/tribler_core/modules/libtorrent/download.py → src/tribler-core/tribler_core/components/libtorrent/download_manager/download.py

@@ -16,16 +16,15 @@
 from tribler_common.simpledefs import DLSTATUS_SEEDING, DLSTATUS_STOPPED, DOWNLOAD, NTFY
 
 from tribler_core.exceptions import SaveResumeDataError
-from tribler_core.modules.libtorrent import check_handle, require_handle
-from tribler_core.modules.libtorrent.download_config import DownloadConfig
-from tribler_core.modules.libtorrent.download_state import DownloadState
-from tribler_core.modules.libtorrent.settings import DownloadDefaultsSettings
-from tribler_core.modules.libtorrent.stream import Stream
-from tribler_core.modules.libtorrent.torrentdef import TorrentDef, TorrentDefNoMetainfo
+from tribler_core.components.libtorrent.download_manager.download_config import DownloadConfig
+from tribler_core.components.libtorrent.download_manager.download_state import DownloadState
+from tribler_core.components.libtorrent.settings import DownloadDefaultsSettings
+from tribler_core.components.libtorrent.download_manager.stream import Stream
+from tribler_core.components.libtorrent.torrentdef import TorrentDef, TorrentDefNoMetainfo
 from tribler_core.notifier import Notifier
-from tribler_core.utilities.libtorrent_helper import libtorrent as lt
+from tribler_core.components.libtorrent.utils.libtorrent_helper import libtorrent as lt
 from tribler_core.utilities.path_util import Path
-from tribler_core.utilities.torrent_utils import get_info_from_handle
+from tribler_core.components.libtorrent.utils.torrent_utils import check_handle, get_info_from_handle, require_handle
 from tribler_core.utilities.unicode import ensure_unicode, hexlify
 from tribler_core.utilities.utilities import bdecode_compat
 

src/tribler-core/tribler_core/modules/libtorrent/download_config.py → src/tribler-core/tribler_core/components/libtorrent/download_manager/download_config.py

@@ -8,15 +8,14 @@
 
 from tribler_core.exceptions import InvalidConfigException
 from tribler_core.utilities.install_dir import get_lib_path
-from tribler_core.utilities.libtorrent_helper import libtorrent as lt
+from tribler_core.components.libtorrent.utils.libtorrent_helper import libtorrent as lt
 from tribler_core.utilities.path_util import Path
 from tribler_core.utilities.utilities import bdecode_compat
 
 SPEC_FILENAME = 'download_config.spec'
-CONFIG_SPEC_PATH = get_lib_path() / 'modules' / 'libtorrent' / SPEC_FILENAME
+CONFIG_SPEC_PATH = get_lib_path() / 'components/libtorrent/download_manager' / SPEC_FILENAME
 NONPERSISTENT_DEFAULTS = {}
 
-
 class DownloadConfig:
     def __init__(self, config=None, state_dir=None):
         self.config = config or ConfigObj(configspec=str(CONFIG_SPEC_PATH), default_encoding='utf8')

src/tribler-core/tribler_core/modules/libtorrent/download_manager.py → src/tribler-core/tribler_core/components/libtorrent/download_manager/download_manager.py

@@ -20,13 +20,14 @@
 from tribler_common.utilities import uri_to_path
 
 from tribler_core.modules.dht_health_manager import DHTHealthManager
-from tribler_core.modules.libtorrent.download import Download
-from tribler_core.modules.libtorrent.download_config import DownloadConfig
-from tribler_core.modules.libtorrent.settings import DownloadDefaultsSettings, LibtorrentSettings
-from tribler_core.modules.libtorrent.torrentdef import TorrentDef, TorrentDefNoMetainfo
+from tribler_core.components.libtorrent.download_manager.download import Download
+from tribler_core.components.libtorrent.download_manager.download_config import DownloadConfig
+from tribler_core.components.libtorrent.settings import DownloadDefaultsSettings, LibtorrentSettings
+from tribler_core.components.libtorrent.torrentdef import TorrentDef, TorrentDefNoMetainfo
 from tribler_core.notifier import Notifier
-from tribler_core.utilities import path_util, torrent_utils
-from tribler_core.utilities.libtorrent_helper import libtorrent as lt
+from tribler_core.utilities import path_util
+from tribler_core.components.libtorrent.utils import torrent_utils
+from tribler_core.components.libtorrent.utils.libtorrent_helper import libtorrent as lt
 from tribler_core.utilities.path_util import Path
 from tribler_core.utilities.unicode import hexlify
 from tribler_core.utilities.utilities import bdecode_compat, has_bep33_support, parse_magnetlink

src/tribler-core/tribler_core/modules/libtorrent/stream.py → src/tribler-core/tribler_core/components/libtorrent/download_manager/stream.py

@@ -22,8 +22,7 @@
 
 from tribler_common.simpledefs import DLSTATUS_DOWNLOADING, DLSTATUS_SEEDING
 
-from tribler_core.modules.libtorrent import check_vod
-from tribler_core.utilities.torrent_utils import get_info_from_handle
+from tribler_core.components.libtorrent.utils.torrent_utils import check_vod, get_info_from_handle
 
 # Header and footer sizes are necessary for video client to detect file codecs and muxer metadata.
 # Without below pieces are ready, streamer should not start

src/tribler-core/tribler_core/components/libtorrent.py → src/tribler-core/tribler_core/components/libtorrent/libtorrent_component.py

@@ -4,7 +4,7 @@
 from tribler_core.components.restapi import RestfulComponent
 from tribler_core.components.socks_configurator import SocksServersComponent
 from tribler_core.components.upgrade import UpgradeComponent
-from tribler_core.modules.libtorrent.download_manager import DownloadManager
+from tribler_core.components.libtorrent.download_manager.download_manager import DownloadManager
 
 
 class LibtorrentComponent(RestfulComponent):

src/tribler-core/tribler_core/modules/libtorrent/restapi/create_torrent_endpoint.py → src/tribler-core/tribler_core/components/libtorrent/restapi/create_torrent_endpoint.py

@@ -10,8 +10,8 @@
 from marshmallow.fields import String
 
 from tribler_core.exceptions import DuplicateDownloadException
-from tribler_core.modules.libtorrent.download_config import DownloadConfig
-from tribler_core.modules.libtorrent.torrentdef import TorrentDef
+from tribler_core.components.libtorrent.download_manager.download_config import DownloadConfig
+from tribler_core.components.libtorrent.torrentdef import TorrentDef
 from tribler_core.restapi.rest_endpoint import HTTP_BAD_REQUEST, RESTEndpoint, RESTResponse
 from tribler_core.restapi.schema import HandledErrorSchema
 from tribler_core.restapi.util import return_handled_exception

src/tribler-core/tribler_core/modules/libtorrent/restapi/downloads_endpoint.py → src/tribler-core/tribler_core/components/libtorrent/restapi/downloads_endpoint.py

@@ -20,9 +20,9 @@
     dlstatus_strings,
 )
 
-from tribler_core.modules.libtorrent.download_config import DownloadConfig
-from tribler_core.modules.libtorrent.download_manager import DownloadManager
-from tribler_core.modules.libtorrent.stream import STREAM_PAUSE_TIME, StreamChunk
+from tribler_core.components.libtorrent.download_manager.download_config import DownloadConfig
+from tribler_core.components.libtorrent.download_manager.download_manager import DownloadManager
+from tribler_core.components.libtorrent.download_manager.stream import STREAM_PAUSE_TIME, StreamChunk
 from tribler_core.restapi.rest_endpoint import (
     HTTP_BAD_REQUEST,
     HTTP_INTERNAL_SERVER_ERROR,
@@ -32,7 +32,7 @@
     RESTStreamResponse,
 )
 from tribler_core.restapi.util import return_handled_exception
-from tribler_core.utilities.libtorrent_helper import libtorrent as lt
+from tribler_core.components.libtorrent.utils.libtorrent_helper import libtorrent as lt
 from tribler_core.utilities.path_util import Path
 from tribler_core.utilities.unicode import ensure_unicode, hexlify
 from tribler_core.utilities.utilities import froze_it

src/tribler-core/tribler_core/modules/libtorrent/restapi/tests/test_downloads_endpoint.py → src/tribler-core/tribler_core/components/libtorrent/restapi/tests/test_downloads_endpoint.py

@@ -10,8 +10,8 @@
 
 from tribler_common.simpledefs import DLSTATUS_CIRCUITS, DLSTATUS_DOWNLOADING, DLSTATUS_EXIT_NODES, DLSTATUS_STOPPED
 
-from tribler_core.modules.libtorrent.download_state import DownloadState
-from tribler_core.modules.libtorrent.restapi.downloads_endpoint import DownloadsEndpoint, get_extended_status
+from tribler_core.components.libtorrent.download_manager.download_state import DownloadState
+from tribler_core.components.libtorrent.restapi.downloads_endpoint import DownloadsEndpoint, get_extended_status
 from tribler_core.restapi.base_api_test import do_request
 from tribler_core.restapi.rest_manager import error_middleware
 from tribler_core.tests.tools.common import TESTS_DATA_DIR

src/tribler-core/tribler_core/modules/libtorrent/restapi/tests/test_libtorrent_endpoint.py → src/tribler-core/tribler_core/components/libtorrent/restapi/tests/test_libtorrent_endpoint.py

@@ -4,7 +4,7 @@
 
 import pytest
 
-from tribler_core.modules.libtorrent.restapi.libtorrent_endpoint import LibTorrentEndpoint
+from tribler_core.components.libtorrent.restapi.libtorrent_endpoint import LibTorrentEndpoint
 from tribler_core.restapi.base_api_test import do_request
 from tribler_core.restapi.rest_manager import error_middleware
 from tribler_core.utilities.unicode import hexlify

src/tribler-core/tribler_core/modules/libtorrent/restapi/tests/test_torrentinfo_endpoint.py → src/tribler-core/tribler_core/components/libtorrent/restapi/tests/test_torrentinfo_endpoint.py

@@ -13,8 +13,8 @@
 
 from tribler_common.simpledefs import NTFY
 
-from tribler_core.modules.libtorrent.restapi.torrentinfo_endpoint import TorrentInfoEndpoint
-from tribler_core.modules.libtorrent.torrentdef import TorrentDef
+from tribler_core.components.libtorrent.restapi.torrentinfo_endpoint import TorrentInfoEndpoint
+from tribler_core.components.libtorrent.torrentdef import TorrentDef
 from tribler_core.components.metadata_store.db.orm_bindings.torrent_metadata import tdef_to_metadata_dict
 from tribler_core.restapi.base_api_test import do_request
 from tribler_core.restapi.rest_manager import error_middleware
@@ -79,7 +79,7 @@ async def mock_http_query(*_):
         with open(tmp_path / "ubuntu.torrent", 'rb') as f:
             return f.read()
 
-    with patch("tribler_core.modules.libtorrent.restapi.torrentinfo_endpoint.query_http_uri", new=mock_http_query):
+    with patch("tribler_core.components.libtorrent.restapi.torrentinfo_endpoint.query_http_uri", new=mock_http_query):
         verify_valid_dict(await do_request(rest_api, f'torrentinfo?uri={quote_plus(path)}', expected_code=200))
 
     path = quote_plus(f'magnet:?xt=urn:btih:{hexlify(UBUNTU_1504_INFOHASH)}'

src/tribler-core/tribler_core/modules/libtorrent/restapi/torrentinfo_endpoint.py → src/tribler-core/tribler_core/components/libtorrent/restapi/torrentinfo_endpoint.py

@@ -13,10 +13,10 @@
 from tribler_common.simpledefs import NTFY
 from tribler_common.utilities import uri_to_path
 
-from tribler_core.modules.libtorrent.torrentdef import TorrentDef
+from tribler_core.components.libtorrent.torrentdef import TorrentDef
 from tribler_core.components.metadata_store.db.orm_bindings.torrent_metadata import tdef_to_metadata_dict
 from tribler_core.restapi.rest_endpoint import HTTP_BAD_REQUEST, HTTP_INTERNAL_SERVER_ERROR, RESTEndpoint, RESTResponse
-from tribler_core.utilities.libtorrent_helper import libtorrent as lt
+from tribler_core.components.libtorrent.utils.libtorrent_helper import libtorrent as lt
 from tribler_core.utilities.unicode import hexlify, recursive_unicode
 from tribler_core.utilities.utilities import bdecode_compat, froze_it, parse_magnetlink
 

src/tribler-core/tribler_core/modules/libtorrent/settings.py → src/tribler-core/tribler_core/components/libtorrent/settings.py

@@ -7,7 +7,7 @@
 
 # pylint: disable=no-self-argument
 from tribler_core.config.tribler_config_section import TriblerConfigSection
-from tribler_core.modules.libtorrent.download_config import get_default_dest_dir
+from tribler_core.components.libtorrent.download_manager.download_config import get_default_dest_dir
 
 
 @validator('port', 'anon_listen_port')

src/tribler-core/tribler_core/modules/libtorrent/tests/conftest.py → src/tribler-core/tribler_core/components/libtorrent/tests/conftest.py

@@ -1,6 +1,6 @@
 import pytest
 
-from tribler_core.modules.libtorrent.torrentdef import TorrentDef, TorrentDefNoMetainfo
+from tribler_core.components.libtorrent.torrentdef import TorrentDef, TorrentDefNoMetainfo
 
 
 @pytest.fixture

src/tribler-core/tribler_core/modules/libtorrent/tests/test_download.py → src/tribler-core/tribler_core/components/libtorrent/tests/test_download.py

@@ -10,10 +10,10 @@
 import pytest
 
 from tribler_core.exceptions import SaveResumeDataError
-from tribler_core.modules.libtorrent.download_config import DownloadConfig
+from tribler_core.components.libtorrent.download_manager.download_config import DownloadConfig
 from tribler_core.tests.tools.base_test import MockObject
 from tribler_core.tests.tools.common import TESTS_DATA_DIR
-from tribler_core.utilities.torrent_utils import get_info_from_handle
+from tribler_core.components.libtorrent.utils.torrent_utils import get_info_from_handle
 from tribler_core.utilities.unicode import hexlify
 from tribler_core.utilities.utilities import bdecode_compat
 

src/tribler-core/tribler_core/modules/libtorrent/tests/test_download_config.py → src/tribler-core/tribler_core/components/libtorrent/tests/test_download_config.py

@@ -4,7 +4,7 @@
 
 import pytest
 
-from tribler_core.modules.libtorrent.download_config import DownloadConfig, get_default_dest_dir
+from tribler_core.components.libtorrent.download_manager.download_config import DownloadConfig, get_default_dest_dir
 from tribler_core.tests.tools.common import TESTS_DATA_DIR
 
 

src/tribler-core/tribler_core/modules/libtorrent/tests/test_download_manager.py → src/tribler-core/tribler_core/components/libtorrent/tests/test_download_manager.py

@@ -9,9 +9,9 @@
 
 from tribler_common.simpledefs import DLSTATUS_SEEDING
 
-from tribler_core.modules.libtorrent.download_manager import DownloadManager
-from tribler_core.modules.libtorrent.settings import LibtorrentSettings
-from tribler_core.modules.libtorrent.torrentdef import TorrentDef, TorrentDefNoMetainfo
+from tribler_core.components.libtorrent.download_manager.download_manager import DownloadManager
+from tribler_core.components.libtorrent.settings import LibtorrentSettings
+from tribler_core.components.libtorrent.torrentdef import TorrentDef, TorrentDefNoMetainfo
 from tribler_core.tests.tools.common import TESTS_DATA_DIR, TORRENT_UBUNTU_FILE
 from tribler_core.utilities.path_util import Path
 from tribler_core.utilities.unicode import hexlify

src/tribler-core/tribler_core/modules/libtorrent/tests/test_download_state.py → src/tribler-core/tribler_core/components/libtorrent/tests/test_download_state.py

@@ -4,7 +4,7 @@
 
 from tribler_common.simpledefs import DLSTATUS_DOWNLOADING, DOWNLOAD, UPLOAD
 
-from tribler_core.modules.libtorrent.download_state import DownloadState
+from tribler_core.components.libtorrent.download_manager.download_state import DownloadState
 
 
 @pytest.fixture

src/tribler-core/tribler_core/components/libtorrent/tests/test_libtorrent_component.py

@@ -0,0 +1,24 @@
+import pytest
+
+from tribler_core.components.base import Session
+from tribler_core.components.libtorrent.libtorrent_component import LibtorrentComponent
+from tribler_core.components.masterkey.masterkey_component import MasterKeyComponent
+from tribler_core.components.restapi import RESTComponent
+from tribler_core.components.socks_configurator import SocksServersComponent
+
+pytestmark = pytest.mark.asyncio
+
+
+# pylint: disable=protected-access
+
+async def test_libtorrent_component(tribler_config):
+    components = [RESTComponent(), MasterKeyComponent(), SocksServersComponent(), LibtorrentComponent()]
+    session = Session(tribler_config, components)
+    with session:
+        await session.start()
+
+        comp = LibtorrentComponent.instance()
+        assert comp.started_event.is_set() and not comp.failed
+        assert comp.download_manager
+
+        await session.shutdown()

src/tribler-core/tribler_core/modules/libtorrent/tests/test_libtorrent_settings.py → src/tribler-core/tribler_core/components/libtorrent/tests/test_libtorrent_settings.py

@@ -2,7 +2,7 @@
 
 from tribler_common.network_utils import NetworkUtils
 
-from tribler_core.modules.libtorrent.settings import DownloadDefaultsSettings, LibtorrentSettings, SeedingMode
+from tribler_core.components.libtorrent.settings import DownloadDefaultsSettings, LibtorrentSettings, SeedingMode
 
 
 @pytest.mark.asyncio

src/tribler-core/tribler_core/modules/libtorrent/tests/test_seeding.py → src/tribler-core/tribler_core/components/libtorrent/tests/test_seeding.py

@@ -7,7 +7,7 @@
 
 from tribler_common.simpledefs import DLSTATUS_SEEDING
 
-from tribler_core.modules.libtorrent.download_config import DownloadConfig
+from tribler_core.components.libtorrent.download_manager.download_config import DownloadConfig
 from tribler_core.tests.tools.common import TESTS_DATA_DIR
 
 

src/tribler-core/tribler_core/modules/libtorrent/tests/test_torrent_def.py → src/tribler-core/tribler_core/components/libtorrent/tests/test_torrent_def.py

@@ -6,7 +6,7 @@
 
 import pytest
 
-from tribler_core.modules.libtorrent.torrentdef import TorrentDef, TorrentDefNoMetainfo
+from tribler_core.components.libtorrent.torrentdef import TorrentDef, TorrentDefNoMetainfo
 from tribler_core.tests.tools.common import TESTS_DATA_DIR, TORRENT_UBUNTU_FILE
 from tribler_core.utilities.path_util import Path
 from tribler_core.utilities.utilities import bdecode_compat

src/tribler-core/tribler_core/modules/libtorrent/torrentdef.py → src/tribler-core/tribler_core/components/libtorrent/torrentdef.py

@@ -9,9 +9,9 @@
 from tribler_common.simpledefs import INFOHASH_LENGTH
 
 from tribler_core.utilities import maketorrent, path_util
-from tribler_core.utilities.libtorrent_helper import libtorrent as lt
+from tribler_core.components.libtorrent.utils.libtorrent_helper import libtorrent as lt
 from tribler_core.utilities.path_util import Path
-from tribler_core.utilities.torrent_utils import create_torrent_file
+from tribler_core.components.libtorrent.utils.torrent_utils import create_torrent_file
 from tribler_core.utilities.unicode import ensure_unicode
 from tribler_core.utilities.utilities import bdecode_compat, is_valid_url, parse_magnetlink