import time
import threading
from Queue import Queue
+import web
+import json
+from web.wsgiserver import CherryPyWSGIServer
import config
import bt
+import users
+
+if config.SECURITY:
+ CherryPyWSGIServer.ssl_certificate = "cacert.pem"
+ CherryPyWSGIServer.ssl_private_key = "privkey.pem"
class CIWorker(threading.Thread):
raw_videos_dir = 'tmp/raw'
transcoded_videos_dir = 'tmp/media'
thumbs_dir = 'tmp/thumbs'
- torrents_dir = 'tmp/torrents'
+ torrents_dir = config.CIS_TORRENTS_PATH
- def __init__(self, queue, bit_torrent):
+ def __init__(self):
"""
Initialize Content Ingestion Worker.
-
- @param queue a list of dictionaries with the following keys:
- <ul>
- <li>raw_video</li>
- <li>name: a video name which must be a valid file name</li>
- <li>transcode_configs: a list of transcode configuration
- dictionaries having the keys as the parameters of
- api.BaseTranscoder.transcode(...)</li>
- <li>thumbs: string 'random' for extracting a thumbnail
- image from a random video position or a positive integer which
- represents the number of summary thumbnails to be extracted</li>
- </ul>
"""
threading.Thread.__init__(self, name='CIWorker')
- self.queue = queue
- self.bit_torrent = bit_torrent
-
def transfer_in(self, raw_video):
"""
Transfers a raw video file from the Web Server.
@param raw_video raw video file name
"""
-
+
+ print '** Transfering in...'
+
file_transfer = config.FILE_TRANSFERER_CLASS( \
- self.raw_videos_dir, config.INPUT_PATH)
+ self.raw_videos_dir, config.WS_UPLOAD_PATH)
file_transfer.get([raw_video])
file_transfer.close()
- print '** Transfering in finished.'
-
def transcode(self, input_video, video_name, transcode_configs):
"""
Transcodes a video in each requested formats.
@param transcode_configs a list of dictionaries with format settings
"""
+ print '** Transcoding...'
+
transcoder = config.TRANSCODER_CLASS( \
input_file = os.path.join(self.raw_videos_dir, input_video), \
name = video_name, prog_bin = config.TRANSCODER_BIN)
transcode_config['output_file'] = \
transcoder.transcode(**transcode_config)
- print '** Transcoding finished.'
-
def extract_thumbs(self, input_video, video_name, thumbs):
"""
Extracts thumbnail images from a video.
thumbnail
"""
+ print '** Extracting image thumbnails...'
+
# TODO report partial errors
thumb_extractor = config.THUMB_EXTRACTOR_CLASS( \
input_file = os.path.join(self.raw_videos_dir, input_video), \
elif type(thumbs) is int and thumbs > 0:
thumb_extractor.extract_summary_thumbs(thumbs)
- print '** Extracting thumbs finished.'
-
def seed(self, transcode_configs):
"""
Creates torrents from the videos passed and then stats seeding them.
@param transcode_configs a list of dictionaries with format settings
"""
+
+ print '** Creating torrents and starting seeding...'
for transcode_config in transcode_configs:
# * CREATE TORRENTS FOR EACH TRANSCODED VIDEO
output_file = output_file[(output_file.rindex('/') + 1):]
# * SEED TORRENTS
- bit_torrent.start_download( \
+ Server.bit_torrent.start_download( \
os.path.join(self.torrents_dir, output_file),
self.transcoded_videos_dir)
- print '** Creating torrents and seeding finished.'
-
def transfer_out(self, local_files, local_path, remote_path):
"""
Transfers some local files to a remote path of the Web Server.
@param local_files list local files to transfer
@param remote_path destination path on the Web Server
"""
+
+ print '** Transfering out...'
file_transfer = config.FILE_TRANSFERER_CLASS( \
local_path, remote_path)
file_transfer.put(local_files)
file_transfer.close()
- print '** Creating torrents and seeding finished.'
-
def remove_files(self, files, path):
"""
Deletes files from a specified path.
"""
+
+ print '** Cleaning up...'
for f in files:
os.unlink(os.path.join(path, f))
- print '** Cleaning up finished.'
-
def run(self):
while True:
- job = self.queue.get()
+ job = Server.queue.get()
# * TRANSFER RAW VIDEO IN
self.transfer_in(job['raw_video'])
files = [f for f in os.listdir(self.torrents_dir) \
if os.path.isfile(os.path.join( \
self.torrents_dir, f))]
- torrent_files = fnmatch.filter(files, name + "_*")
+ torrent_files = fnmatch.filter(files, job['name'] + "_*")
# Thumbnail images files.
files = [f for f in os.listdir(self.thumbs_dir) \
if os.path.isfile(os.path.join( \
self.thumbs_dir, f))]
- thumb_files = fnmatch.filter(files, name + "_*")
-
- # Raw video files.
- raw_files = [f for f in os.listdir(self.raw_videos_dir) \
- if os.path.isfile(os.path.join( \
- self.raw_videos_dir, f))]
+ thumb_files = fnmatch.filter(files, job['name'] + "_*")
# * TRANSFER TORRENTS AND THUMBNAIL IMAGES OUT
self.transfer_out(torrent_files, self.torrents_dir, \
- config.OUTPUT_TORRENTS_PATH)
+ config.WS_TORRENTS_PATH)
self.transfer_out(thumb_files, self.thumbs_dir, \
- config.OUTPUT_THUMBS_PATH)
+ config.WS_THUMBS_PATH)
# * CLEANUP RAW VIDEOS AND THUMBNAIL IMAGES
- self.remove_files(raw_files, self.raw_videos_dir)
+ self.remove_files([ job['raw_video'] ], self.raw_videos_dir)
self.remove_files(thumb_files, self.thumbs_dir)
# * JOB FINISHED
- queue.task_done()
+ Server.queue.task_done()
+ Server.load -= job['weight']
-if __name__ == '__main__':
- # Jobs queue.
- queue = Queue()
+class Server:
+ """
+ Implementation of the RESTful web service which constitutes the interface
+ with the client (web server).
+ """
+
+ #def __init__(self):
+ #pass
+
+ #def __del__(self):
+ #pass
+
+ def GET(self, request):
+ #web.header('Cache-Control', 'no-cache')
+
+ if request == 'get_load':
+ resp = {"load": Server.load}
+ web.header('Content-Type', 'application/json')
+ return json.dumps(resp)
+ elif request == 'test':
+ return ''
+ else:
+ web.badrequest()
+ return ""
+
+
+ def POST(self, request):
+ if request == 'ingest_content':
+ # Read JSON parameters.
+ json_data = web.data()
+ data = json.loads(json_data)
+
+ # Authenticate user.
+ if config.SECURITY and \
+ not self.authenticate(data["username"], data["password"]):
+ return "Authentication failed!"
- # The BitTorrent object implements a NextShare (Tribler) BitTorrent client
- # for seeding, downloading etc.
- bit_torrent = bt.BitTorrent()
+ # Add job weight to CIS load.
+ Server.load += data["weight"]
+ # Submit job.
+ Server.queue.put(data)
+
+ return 'Job submitted.'
+ else:
+ web.badrequest()
+ return ""
+
+ def authenticate(self, username, password):
+ if not config.SECURITY:
+ return True
+ if users.users[username] == password:
+ return True
+ else:
+ web.forbidden()
+ return False
+
+
+if __name__ == '__main__':
+ # The BitTorrent object implements a NextShare (Tribler) BitTorrent
+ # client for seeding, downloading etc.
+ Server.bit_torrent = bt.BitTorrent()
+ Server.queue = Queue()
+ Server.load = 0
+
# Worker thread.
- ci_worker = CIWorker(queue, bit_torrent)
+ ci_worker = CIWorker()
ci_worker.daemon = True
ci_worker.start()
- while True:
- raw_video = sys.stdin.readline().strip()
- if raw_video == 'x':
- break
-
- container = 'webm'
- a_codec = 'vorbis'
- a_bitrate = '128k'
- v_codec = 'vp8'
- v_bitrate = '480k'
- v_resolution = '640x480'
-
- name = raw_video[:raw_video.rindex('.')]
- transcode_config = {
- 'container': container,
- 'a_codec': a_codec,
- 'a_bitrate': a_bitrate,
- 'v_codec': v_codec,
- 'v_bitrate': v_bitrate,
- 'v_resolution': v_resolution
- }
- thumbs = 4
-
- job = {
- 'raw_video': raw_video,
- 'name': name,
- 'transcode_configs': [transcode_config],
- 'thumbs': thumbs
- }
-
- queue.put(job)
-
- queue.join()
+ # Web service.
+ urls = ('/(.*)', 'Server')
+ app = web.application(urls, globals())
+ app.run()
projects / living-lab-site.git / blobdiff