lbry-sdk/lbrynet/lbrynet_daemon/LBRYPublisher.py
2016-07-27 01:13:41 -04:00

141 lines
5.1 KiB
Python

import logging
import mimetypes
import os
import sys
from appdirs import user_data_dir
from datetime import datetime
from lbrynet.core.Error import InsufficientFundsError
from lbrynet.lbryfilemanager.LBRYFileCreator import create_lbry_file
from lbrynet.lbryfile.StreamDescriptor import publish_sd_blob
from lbrynet.core.PaymentRateManager import PaymentRateManager
from lbrynet.core.LBRYMetadata import Metadata, CURRENT_METADATA_VERSION
from lbrynet.lbryfilemanager.LBRYFileDownloader import ManagedLBRYFileDownloader
from lbrynet.conf import LOG_FILE_NAME
from twisted.internet import threads, defer
if sys.platform != "darwin":
log_dir = os.path.join(os.path.expanduser("~"), ".lbrynet")
else:
log_dir = user_data_dir("LBRY")
if not os.path.isdir(log_dir):
os.mkdir(log_dir)
lbrynet_log = os.path.join(log_dir, LOG_FILE_NAME)
log = logging.getLogger(__name__)
handler = logging.handlers.RotatingFileHandler(lbrynet_log, maxBytes=2097152, backupCount=5)
log.addHandler(handler)
log.setLevel(logging.INFO)
class Publisher(object):
def __init__(self, session, lbry_file_manager, wallet):
self.session = session
self.lbry_file_manager = lbry_file_manager
self.wallet = wallet
self.received_file_name = False
self.file_path = None
self.file_name = None
self.publish_name = None
self.bid_amount = None
self.verified = False
self.lbry_file = None
self.txid = None
self.stream_hash = None
self.metadata = {}
def start(self, name, file_path, bid, metadata, old_txid):
def _show_result():
log.info("Published %s --> lbry://%s txid: %s", self.file_name, self.publish_name, self.txid)
return defer.succeed(self.txid)
self.publish_name = name
self.file_path = file_path
self.bid_amount = bid
self.metadata = metadata
self.old_txid = old_txid
d = self._check_file_path(self.file_path)
d.addCallback(lambda _: create_lbry_file(self.session, self.lbry_file_manager,
self.file_name, open(self.file_path)))
d.addCallback(self.add_to_lbry_files)
d.addCallback(lambda _: self._create_sd_blob())
d.addCallback(lambda _: self._claim_name())
d.addCallback(lambda _: self.set_status())
d.addCallbacks(lambda _: _show_result(), self._show_publish_error)
return d
def _check_file_path(self, file_path):
def check_file_threaded():
f = open(file_path)
f.close()
self.file_name = os.path.basename(self.file_path)
return True
return threads.deferToThread(check_file_threaded)
def set_lbry_file(self, lbry_file_downloader):
self.lbry_file = lbry_file_downloader
return defer.succeed(None)
def add_to_lbry_files(self, stream_hash):
self.stream_hash = stream_hash
prm = PaymentRateManager(self.session.base_payment_rate_manager)
d = self.lbry_file_manager.add_lbry_file(stream_hash, prm)
d.addCallback(self.set_lbry_file)
return d
def _create_sd_blob(self):
d = publish_sd_blob(self.lbry_file_manager.stream_info_manager, self.session.blob_manager,
self.lbry_file.stream_hash)
def set_sd_hash(sd_hash):
if 'sources' not in self.metadata:
self.metadata['sources'] = {}
self.metadata['sources']['lbry_sd_hash'] = sd_hash
d.addCallback(set_sd_hash)
return d
def set_status(self):
d = self.lbry_file_manager.change_lbry_file_status(self.lbry_file, ManagedLBRYFileDownloader.STATUS_FINISHED)
d.addCallback(lambda _: self.lbry_file.restore())
return d
def _claim_name(self):
self.metadata['content-type'] = mimetypes.guess_type(os.path.join(self.lbry_file.download_directory,
self.lbry_file.file_name))[0]
self.metadata['ver'] = CURRENT_METADATA_VERSION
if self.old_txid:
d = self.wallet.abandon_name(self.old_txid)
d.addCallback(lambda tx: log.info("Abandoned tx %s" % str(tx)))
d.addCallback(lambda _: self.wallet.claim_name(self.publish_name,
self.bid_amount,
Metadata(self.metadata)))
else:
d = self.wallet.claim_name(self.publish_name,
self.bid_amount,
Metadata(self.metadata))
def set_tx_hash(txid):
self.txid = txid
d.addCallback(set_tx_hash)
return d
def _show_publish_error(self, err):
log.info(err.getTraceback())
message = "An error occurred publishing %s to %s. Error: %s."
if err.check(InsufficientFundsError):
error_message = "Insufficient funds"
else:
error_message = err.getErrorMessage()
log.error(error_message)
log.error(message, str(self.file_name), str(self.publish_name), err.getTraceback())
return defer.succeed(error_message)