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script.module.pyrrent2http
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==========================
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This add-on is binding to [torrent2http](https://github.com/anteo/torrent2http) client. 
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It is bundled with torrent2http binaries for Android ARM, Linux x86/x64/ARM, Windows x86/x64 and Darwin/OSX x64 platforms.
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You can download it from my [repository](http://bit.ly/184XKjm)
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This add-on is engine for [plugin.video.torrenter](https://github.com/DiMartinoXBMC/plugin.video.torrenter) 
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This add-on can be used to stream media files from torrents without need to download entire files.
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Internally, it runs pre-compiled torrent2http client binary, which starts local HTTP server, presenting contents of torrent.
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Next, request to HTTP server can be sent to receive list of files or to start streaming of needed file inside of torrent.
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Usage
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-----
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### Get list of files inside torrent ###
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Getting list of files inside torrent is straightforward:
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```python
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import xbmc 
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from pyrrent2http import State, Engine, MediaType
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from contextlib import closing
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# Create instance of Engine 
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engine = Engine(uri="...")
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files = []
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# Ensure we'll close engine on exception 
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with closing(engine):
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    # Start engine 
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    engine.start()
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    # Wait until files received 
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    while not files and not xbmc.abortRequested:
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        # Will list only video files in torrent
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        files = engine.list(media_types=[MediaType.VIDEO])
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        # Check if there is loading torrent error and raise exception 
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        engine.check_torrent_error()
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        xbmc.sleep(200)
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```
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### Start streaming ###
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```python
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import xbmc 
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from pyrrent2http import State, Engine, MediaType
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from contextlib import closing
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# XBMC addon handle
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handle = ...
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# Playable list item
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listitem = ...
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# We can know file_id of needed video file on this step, if no, we'll try to detect one.
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file_id = None
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# Flag will set to True when engine is ready to resolve URL to XBMC
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ready = False
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# Set pre-buffer size to 15Mb. This is a size of file that need to be downloaded before we resolve URL to XMBC 
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pre_buffer_bytes = 15*1024*1024
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engine = Engine(uri="...")
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with closing(engine):
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    # Start engine and instruct torrent2http to begin download first file, 
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    # so it can start searching and connecting to peers  
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    engine.start(file_id or 0)
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    while not xbmc.abortRequested and not ready:
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        xbmc.sleep(500)
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        status = engine.status()
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        # Check if there is loading torrent error and raise exception 
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        engine.check_torrent_error(status)
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        # Trying to detect file_id
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        if file_id is None:
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            # Get torrent files list, filtered by video file type only
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            files = engine.list(media_types=[MediaType.VIDEO])
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            # If torrent metadata is not loaded yet then continue
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            if files is None:
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                continue
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            # Torrent has no video files
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            if not files:
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                break
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            # Select first matching file                    
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            file_id = files[0].index
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            file_status = files[0]
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        else:
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            # If we've got file_id already, get file status
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            file_status = engine.file_status(file_id)
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            # If torrent metadata is not loaded yet then continue
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            if not file_status:
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                continue
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        if status.state == State.DOWNLOADING:
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            # Wait until minimum pre_buffer_bytes downloaded before we resolve URL to XBMC
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            if file_status.download >= pre_buffer_bytes:
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                ready = True
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                break
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        elif status.state in [State.FINISHED, State.SEEDING]:
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            # We have already downloaded file
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            ready = True
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            break
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        # Here you can update pre-buffer progress dialog, for example.
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        # Note that State.CHECKING also need waiting until fully finished, so it better to use resume_file option
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        # for engine to avoid CHECKING state if possible.
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        # ...
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    if ready:
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        # Resolve URL to XBMC
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        listitem.SetPath(file_status.url)
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        xbmcplugin.SetResolvedUrl(handle, True, listitem)
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        # Wait until playing finished or abort requested
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        while not xbmc.abortRequested and xbmc.Player().isPlaying():
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            xbmc.sleep(500)
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```
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