78 lines
3.9 KiB
Python
78 lines
3.9 KiB
Python
import logging
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import mimetypes
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import os
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from twisted.internet import defer
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from lbrynet.core import file_utils
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from lbrynet.file_manager.EncryptedFileCreator import create_lbry_file
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log = logging.getLogger(__name__)
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class Publisher(object):
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def __init__(self, session, lbry_file_manager, wallet, certificate_id):
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self.session = session
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self.lbry_file_manager = lbry_file_manager
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self.wallet = wallet
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self.certificate_id = certificate_id
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self.lbry_file = None
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@defer.inlineCallbacks
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def create_and_publish_stream(self, name, bid, claim_dict, file_path, claim_address=None,
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change_address=None):
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"""Create lbry file and make claim"""
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log.info('Starting publish for %s', name)
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if not os.path.isfile(file_path):
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raise Exception("File {} not found".format(file_path))
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if os.path.getsize(file_path) == 0:
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raise Exception("Cannot publish empty file {}".format(file_path))
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file_name = os.path.basename(file_path)
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with file_utils.get_read_handle(file_path) as read_handle:
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self.lbry_file = yield create_lbry_file(self.session, self.lbry_file_manager, file_name,
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read_handle)
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if 'source' not in claim_dict['stream']:
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claim_dict['stream']['source'] = {}
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claim_dict['stream']['source']['source'] = self.lbry_file.sd_hash
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claim_dict['stream']['source']['sourceType'] = 'lbry_sd_hash'
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claim_dict['stream']['source']['contentType'] = get_content_type(file_path)
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claim_dict['stream']['source']['version'] = "_0_0_1" # need current version here
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claim_out = yield self.make_claim(name, bid, claim_dict, claim_address, change_address)
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# check if we have a file already for this claim (if this is a publish update with a new stream)
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old_stream_hashes = yield self.session.storage.get_old_stream_hashes_for_claim_id(claim_out['claim_id'],
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self.lbry_file.stream_hash)
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if old_stream_hashes:
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for lbry_file in filter(lambda l: l.stream_hash in old_stream_hashes,
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list(self.lbry_file_manager.lbry_files)):
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yield self.lbry_file_manager.delete_lbry_file(lbry_file, delete_file=False)
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log.info("Removed old stream for claim update: %s", lbry_file.stream_hash)
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yield self.session.storage.save_content_claim(
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self.lbry_file.stream_hash, "%s:%i" % (claim_out['txid'], claim_out['nout'])
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)
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defer.returnValue(claim_out)
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@defer.inlineCallbacks
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def publish_stream(self, name, bid, claim_dict, stream_hash, claim_address=None, change_address=None):
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"""Make a claim without creating a lbry file"""
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claim_out = yield self.make_claim(name, bid, claim_dict, claim_address, change_address)
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if stream_hash: # the stream_hash returned from the db will be None if this isn't a stream we have
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yield self.session.storage.save_content_claim(stream_hash, "%s:%i" % (claim_out['txid'],
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claim_out['nout']))
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self.lbry_file = [f for f in self.lbry_file_manager.lbry_files if f.stream_hash == stream_hash][0]
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defer.returnValue(claim_out)
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@defer.inlineCallbacks
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def make_claim(self, name, bid, claim_dict, claim_address=None, change_address=None):
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claim_out = yield self.wallet.claim_name(name, bid, claim_dict,
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certificate_id=self.certificate_id,
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claim_address=claim_address,
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change_address=change_address)
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defer.returnValue(claim_out)
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def get_content_type(filename):
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return mimetypes.guess_type(filename)[0] or 'application/octet-stream'
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