class LBRYDownloader(object):
def __init__(self):
self.session = None
self.known_dht_nodes = [('104.236.42.182', 4000)]
self.db_dir = os.path.join(os.path.expanduser("~"), ".lbrydownloader")
self.blobfile_dir = os.path.join(self.db_dir, "blobfiles")
self.peer_port = 3333
self.dht_node_port = 4444
self.run_server = True
self.first_run = False
self.current_db_revision = 1
if os.name == "nt":
from lbrynet.winhelpers.knownpaths import get_path, FOLDERID, UserHandle
self.download_directory = get_path(FOLDERID.Downloads, UserHandle.current)
self.wallet_dir = os.path.join(get_path(FOLDERID.RoamingAppData, UserHandle.current), "lbrycrd")
else:
if sys.platform == 'darwin':
self.download_directory = os.path.join(os.path.expanduser("~"), "Downloads")
self.wallet_dir = os.path.join(os.path.expanduser("~"), "Library/Application Support/lbrycrd")
else:
self.download_directory = os.getcwd()
self.wallet_dir = os.path.join(os.path.expanduser("~"), ".lbrycrd")
self.wallet_conf = os.path.join(self.wallet_dir, "lbrycrd.conf")
self.wallet_user = None
self.wallet_password = None
self.sd_identifier = StreamDescriptorIdentifier()
self.wallet_rpc_port = 8332
self.download_deferreds = []
self.stream_frames = []
self.default_blob_data_payment_rate = MIN_BLOB_DATA_PAYMENT_RATE
self.use_upnp = True
self.start_lbrycrdd = True
if os.name == "nt":
self.lbrycrdd_path = "lbrycrdd.exe"
else:
self.lbrycrdd_path = None
self.default_lbrycrdd_path = "./lbrycrdd"
self.delete_blobs_on_remove = True
self.blob_request_payment_rate_manager = None
def start(self):
d = self._load_conf_options()
d.addCallback(lambda _: threads.deferToThread(self._create_directory))
d.addCallback(lambda _: self._check_db_migration())
d.addCallback(lambda _: self._get_session())
d.addCallback(lambda _: self._setup_stream_info_manager())
d.addCallback(lambda _: self._setup_stream_identifier())
d.addCallback(lambda _: self.start_server())
return d
def stop(self):
dl = defer.DeferredList(self.download_deferreds)
for stream_frame in self.stream_frames:
stream_frame.cancel_func()
if self.session is not None:
dl.addBoth(lambda _: self.stop_server())
dl.addBoth(lambda _: self.session.shut_down())
return dl
def get_new_address(self):
return self.session.wallet.get_new_address()
def _check_db_migration(self):
old_revision = 0
db_revision_file = os.path.join(self.db_dir, "db_revision")
if os.path.exists(db_revision_file):
old_revision = int(open(db_revision_file).read().strip())
if old_revision < self.current_db_revision:
if os.name == "nt":
import subprocess
import sys
def run_migrator():
migrator_exe = os.path.join(os.path.dirname(os.path.abspath(sys.argv[0])),
"dbmigrator", "migrator.exe")
print "trying to find the migrator at", migrator_exe
si = subprocess.STARTUPINFO
si.dwFlags = subprocess.STARTF_USESHOWWINDOW
si.wShowWindow = subprocess.SW_HIDE
print "trying to run the migrator"
migrator_proc = subprocess.Popen([migrator_exe, self.db_dir, str(old_revision),
str(self.current_db_revision)], startupinfo=si)
print "started the migrator"
migrator_proc.wait()
print "migrator has returned"
return threads.deferToThread(run_migrator)
else:
from lbrynet.db_migrator import dbmigrator
return threads.deferToThread(dbmigrator.migrate_db, self.db_dir, old_revision,
self.current_db_revision)
return defer.succeed(True)
def _load_conf_options(self):
def get_lbrycrdd_path_conf_file():
if os.name == "nt":
return ""
lbrycrdd_path_conf_path = os.path.join(os.path.expanduser("~"), ".lbrycrddpath.conf")
if not os.path.exists(lbrycrdd_path_conf_path):
return ""
lbrycrdd_path_conf = open(lbrycrdd_path_conf_path)
lines = lbrycrdd_path_conf.readlines()
return lines
d = threads.deferToThread(get_lbrycrdd_path_conf_file)
def load_lbrycrdd_path(conf):
for line in conf:
if len(line.strip()) and line.strip()[0] != "#":
self.lbrycrdd_path = line.strip()
d.addCallback(load_lbrycrdd_path)
def get_configuration_file():
if os.name == "nt":
lbry_conf_path = "lbry.conf"
if not os.path.exists(lbry_conf_path):
log.debug("Could not read lbry.conf")
return ""
else:
lbry_conf_path = os.path.join(os.path.expanduser("~"), ".lbrynetgui.conf")
if not os.path.exists(lbry_conf_path):
clean_conf_path = os.path.join(os.path.dirname(__file__), "lbry.conf")
shutil.copy(clean_conf_path, lbry_conf_path)
lbry_conf = open(lbry_conf_path)
log.debug("Loading configuration options from %s", lbry_conf_path)
lines = lbry_conf.readlines()
log.debug("%s file contents:\n%s", lbry_conf_path, str(lines))
return lines
d.addCallback(lambda _: threads.deferToThread(get_configuration_file))
def load_configuration_file(conf):
for line in conf:
if len(line.strip()) and line.strip()[0] != "#":
try:
field_name, field_value = map(lambda x: x.strip(), line.strip().split("=", 1))
field_name = field_name.lower()
except ValueError:
raise ValueError("Invalid configuration line: %s" % line)
if field_name == "known_dht_nodes":
known_nodes = []
nodes = field_value.split(",")
for n in nodes:
if n.strip():
try:
ip_address, port_string = map(lambda x: x.strip(), n.split(":"))
ip_numbers = ip_address.split(".")
assert len(ip_numbers) == 4
for ip_num in ip_numbers:
num = int(ip_num)
assert 0 <= num <= 255
known_nodes.append((ip_address, int(port_string)))
except (ValueError, AssertionError):
raise ValueError("Expected known nodes in format 192.168.1.1:4000,192.168.1.2:4001. Got %s" % str(field_value))
log.debug("Setting known_dht_nodes to %s", str(known_nodes))
self.known_dht_nodes = known_nodes
elif field_name == "run_server":
if field_value.lower() == "true":
run_server = True
elif field_value.lower() == "false":
run_server = False
else:
raise ValueError("run_server must be set to True or False. Got %s" % field_value)
log.debug("Setting run_server to %s", str(run_server))
self.run_server = run_server
elif field_name == "data_dir":
log.debug("Setting data_dir to %s", str(field_value))
self.db_dir = field_value
self.blobfile_dir = os.path.join(self.db_dir, "blobfiles")
elif field_name == "wallet_dir":
log.debug("Setting wallet_dir to %s", str(field_value))
self.wallet_dir = field_value
elif field_name == "wallet_conf":
log.debug("Setting wallet_conf to %s", str(field_value))
self.wallet_conf = field_value
elif field_name == "peer_port":
try:
peer_port = int(field_value)
assert 0 <= peer_port <= 65535
log.debug("Setting peer_port to %s", str(peer_port))
self.peer_port = peer_port
except (ValueError, AssertionError):
raise ValueError("peer_port must be set to an integer between 1 and 65535. Got %s" % field_value)
elif field_name == "dht_port":
try:
dht_port = int(field_value)
assert 0 <= dht_port <= 65535
log.debug("Setting dht_node_port to %s", str(dht_port))
self.dht_node_port = dht_port
except (ValueError, AssertionError):
raise ValueError("dht_port must be set to an integer between 1 and 65535. Got %s" % field_value)
elif field_name == "use_upnp":
if field_value.lower() == "true":
use_upnp = True
elif field_value.lower() == "false":
use_upnp = False
else:
raise ValueError("use_upnp must be set to True or False. Got %s" % str(field_value))
log.debug("Setting use_upnp to %s", str(use_upnp))
self.use_upnp = use_upnp
elif field_name == "default_blob_data_payment_rate":
try:
rate = float(field_value)
assert rate >= 0.0
log.debug("Setting default_blob_data_payment_rate to %s", str(rate))
self.default_blob_data_payment_rate = rate
except (ValueError, AssertionError):
raise ValueError("default_blob_data_payment_rate must be a positive floating point number, e.g. 0.5. Got %s" % str(field_value))
elif field_name == "start_lbrycrdd":
if field_value.lower() == "true":
start_lbrycrdd = True
elif field_value.lower() == "false":
start_lbrycrdd = False
else:
raise ValueError("start_lbrycrdd must be set to True or False. Got %s" % field_value)
log.debug("Setting start_lbrycrdd to %s", str(start_lbrycrdd))
self.start_lbrycrdd = start_lbrycrdd
elif field_name == "lbrycrdd_path":
self.lbrycrdd_path = field_value
elif field_name == "download_directory":
log.debug("Setting download_directory to %s", str(field_value))
self.download_directory = field_value
elif field_name == "delete_blobs_on_stream_remove":
if field_value.lower() == "true":
self.delete_blobs_on_remove = True
elif field_value.lower() == "false":
self.delete_blobs_on_remove = False
else:
raise ValueError("delete_blobs_on_stream_remove must be set to True or False")
else:
log.warning("Got unknown configuration field: %s", field_name)
d.addCallback(load_configuration_file)
return d
def _create_directory(self):
if not os.path.exists(self.db_dir):
os.makedirs(self.db_dir)
db_revision = open(os.path.join(self.db_dir, "db_revision"), mode='w')
db_revision.write(str(self.current_db_revision))
db_revision.close()
log.debug("Created the configuration directory: %s", str(self.db_dir))
if not os.path.exists(self.blobfile_dir):
os.makedirs(self.blobfile_dir)
log.debug("Created the data directory: %s", str(self.blobfile_dir))
if os.name == "nt":
if not os.path.exists(self.wallet_dir):
os.makedirs(self.wallet_dir)
if not os.path.exists(self.wallet_conf):
lbrycrd_conf = open(self.wallet_conf, mode='w')
self.wallet_user = "******"
lbrycrd_conf.write("rpcuser=%s\n" % self.wallet_user)
self.wallet_password = binascii.hexlify(Random.new().read(20))
lbrycrd_conf.write("rpcpassword=%s\n" % self.wallet_password)
lbrycrd_conf.write("server=1\n")
lbrycrd_conf.close()
else:
lbrycrd_conf = open(self.wallet_conf)
for l in lbrycrd_conf:
if l.startswith("rpcuser="******"rpcpassword="******"rpcport="):
self.wallet_rpc_port = int(l[8:-1].rstrip('\n'))
def _get_session(self):
lbrycrdd_path = None
if self.start_lbrycrdd is True:
lbrycrdd_path = self.lbrycrdd_path
if not lbrycrdd_path:
lbrycrdd_path = self.default_lbrycrdd_path
if sys.platform == 'darwin':
os.chdir("/Applications/LBRY.app/Contents/Resources")
wallet = LBRYcrdWallet(self.db_dir, wallet_dir=self.wallet_dir, wallet_conf=self.wallet_conf,
lbrycrdd_path=lbrycrdd_path)
peer_port = None
if self.run_server:
peer_port = self.peer_port
self.session = LBRYSession(self.default_blob_data_payment_rate, db_dir=self.db_dir,
blob_dir=self.blobfile_dir, use_upnp=self.use_upnp, wallet=wallet,
known_dht_nodes=self.known_dht_nodes, dht_node_port=self.dht_node_port,
peer_port=peer_port)
return self.session.setup()
def _setup_stream_info_manager(self):
self.stream_info_manager = TempLBRYFileMetadataManager()
return defer.succeed(True)
def start_server(self):
if self.run_server:
self.blob_request_payment_rate_manager = PaymentRateManager(
self.session.base_payment_rate_manager,
self.default_blob_data_payment_rate
)
handlers = [
BlobAvailabilityHandlerFactory(self.session.blob_manager),
self.session.wallet.get_wallet_info_query_handler_factory(),
BlobRequestHandlerFactory(self.session.blob_manager, self.session.wallet,
self.blob_request_payment_rate_manager)
]
server_factory = ServerProtocolFactory(self.session.rate_limiter,
handlers,
self.session.peer_manager)
from twisted.internet import reactor
self.lbry_server_port = reactor.listenTCP(self.peer_port, server_factory)
return defer.succeed(True)
def stop_server(self):
if self.lbry_server_port is not None:
self.lbry_server_port, p = None, self.lbry_server_port
return defer.maybeDeferred(p.stopListening)
else:
return defer.succeed(True)
def _setup_stream_identifier(self):
add_lbry_file_to_sd_identifier(self.sd_identifier)
file_saver_factory = LBRYFileSaverFactory(self.session.peer_finder, self.session.rate_limiter,
self.session.blob_manager, self.stream_info_manager,
self.session.wallet, self.download_directory)
self.sd_identifier.add_stream_downloader_factory(LBRYFileStreamType, file_saver_factory)
file_opener_factory = LBRYFileOpenerFactory(self.session.peer_finder, self.session.rate_limiter,
self.session.blob_manager, self.stream_info_manager,
self.session.wallet)
self.sd_identifier.add_stream_downloader_factory(LBRYFileStreamType, file_opener_factory)
def check_first_run(self):
d = self.session.wallet.check_first_run()
d.addCallback(lambda is_first_run: self._do_first_run() if is_first_run else 0.0)
return d
def _do_first_run(self):
d = self.session.wallet.get_new_address()
def send_request(url, data):
r = requests.post(url, json=data)
if r.status_code == 200:
return r.json()['credits_sent']
return 0.0
def log_error(err):
log.warning("unable to request free credits. %s", err.getErrorMessage())
return 0.0
def request_credits(address):
url = "http://credreq.lbry.io/requestcredits"
data = {"address": address}
d = threads.deferToThread(send_request, url, data)
d.addErrback(log_error)
return d
d.addCallback(request_credits)
return d
def _resolve_name(self, uri):
return self.session.wallet.get_stream_info_for_name(uri)
def download_stream(self, stream_frame, uri):
resolve_d = self._resolve_name(uri)
stream_frame.show_metadata_status("resolving name...")
stream_frame.cancel_func = resolve_d.cancel
payment_rate_manager = PaymentRateManager(self.session.base_payment_rate_manager)
def update_stream_name(value):
if 'name' in value:
stream_frame.show_name(value['name'])
if 'description' in value:
stream_frame.show_description(value['description'])
if 'thumbnail' in value:
stream_frame.show_thumbnail(value['thumbnail'])
return value
def get_sd_hash(value):
if 'stream_hash' in value:
return value['stream_hash']
raise UnknownNameError(uri)
def get_sd_blob(sd_hash):
stream_frame.show_metadata_status("name resolved, fetching metadata...")
get_sd_d = StreamDescriptor.download_sd_blob(self.session, sd_hash,
payment_rate_manager)
get_sd_d.addCallback(self.sd_identifier.get_metadata_for_sd_blob)
get_sd_d.addCallbacks(choose_download_factory, bad_sd_blob)
return get_sd_d
def get_info_from_validator(info_validator):
stream_name = None
stream_size = None
for field, val in info_validator.info_to_show():
if field == "suggested_file_name":
stream_name = val
elif field == "stream_name" and stream_name is None:
stream_name = val
elif field == "stream_size":
stream_size = int(val)
if stream_size is None:
stream_size = "unknown"
if stream_name is None:
stream_name = "unknown"
return stream_name, stream_size
def choose_download_factory(metadata):
#info_validator, options, factories = info_and_factories
stream_name, stream_size = get_info_from_validator(metadata.validator)
if isinstance(stream_size, (int, long)):
price = payment_rate_manager.get_effective_min_blob_data_payment_rate()
estimated_cost = stream_size * 1.0 / 2**20 * price
else:
estimated_cost = "unknown"
stream_frame.show_stream_metadata(stream_name, stream_size, estimated_cost)
available_options = metadata.options.get_downloader_options(metadata.validator,
payment_rate_manager)
stream_frame.show_download_options(available_options)
get_downloader_d = defer.Deferred()
def create_downloader(f, chosen_options):
def fire_get_downloader_d(downloader):
if not get_downloader_d.called:
get_downloader_d.callback(downloader)
stream_frame.disable_download_buttons()
d = f.make_downloader(metadata, chosen_options,
payment_rate_manager)
d.addCallback(fire_get_downloader_d)
for factory in metadata.factories:
def choose_factory(f=factory):
chosen_options = stream_frame.get_chosen_options()
create_downloader(f, chosen_options)
stream_frame.add_download_factory(factory, choose_factory)
get_downloader_d.addCallback(start_download)
return get_downloader_d
def show_stream_status(downloader):
total_bytes = downloader.get_total_bytes_cached()
bytes_left_to_download = downloader.get_bytes_left_to_download()
points_paid = payment_rate_manager.points_paid
payment_rate = payment_rate_manager.get_effective_min_blob_data_payment_rate()
points_remaining = 1.0 * bytes_left_to_download * payment_rate / 2**20
stream_frame.show_progress(total_bytes, bytes_left_to_download,
points_paid, points_remaining)
def show_finished(arg, downloader):
show_stream_status(downloader)
stream_frame.show_download_done(payment_rate_manager.points_paid)
return arg
def start_download(downloader):
stream_frame.stream_hash = downloader.stream_hash
l = task.LoopingCall(show_stream_status, downloader)
l.start(1)
d = downloader.start()
stream_frame.cancel_func = downloader.stop
def stop_looping_call(arg):
l.stop()
stream_frame.cancel_func = resolve_d.cancel
return arg
d.addBoth(stop_looping_call)
d.addCallback(show_finished, downloader)
return d
def lookup_failed(err):
stream_frame.show_metadata_status("name lookup failed")
return err
def bad_sd_blob(err):
stream_frame.show_metadata_status("Unknown type or badly formed metadata")
return err
resolve_d.addCallback(update_stream_name)
resolve_d.addCallback(get_sd_hash)
resolve_d.addCallbacks(get_sd_blob, lookup_failed)
def show_err(err):
tkMessageBox.showerror(title="Download Error", message=err.getErrorMessage())
log.error(err.getErrorMessage())
stream_frame.show_download_done(payment_rate_manager.points_paid)
resolve_d.addErrback(lambda err: err.trap(defer.CancelledError, UnknownNameError,
UnknownStreamTypeError, InvalidStreamDescriptorError,
InvalidStreamInfoError))
resolve_d.addErrback(show_err)
def delete_associated_blobs():
if stream_frame.stream_hash is None or self.delete_blobs_on_remove is False:
return defer.succeed(True)
d1 = self.stream_info_manager.get_blobs_for_stream(stream_frame.stream_hash)
def get_blob_hashes(blob_infos):
return [b[0] for b in blob_infos if b[0] is not None]
d1.addCallback(get_blob_hashes)
d2 = self.stream_info_manager.get_sd_blob_hashes_for_stream(stream_frame.stream_hash)
def combine_blob_hashes(results):
blob_hashes = []
for success, result in results:
if success is True:
blob_hashes.extend(result)
return blob_hashes
def delete_blobs(blob_hashes):
return self.session.blob_manager.delete_blobs(blob_hashes)
dl = defer.DeferredList([d1, d2], fireOnOneErrback=True)
dl.addCallback(combine_blob_hashes)
dl.addCallback(delete_blobs)
return dl
resolve_d.addCallback(lambda _: delete_associated_blobs())
self._add_download_deferred(resolve_d, stream_frame)
def _add_download_deferred(self, d, stream_frame):
self.download_deferreds.append(d)
self.stream_frames.append(stream_frame)
def remove_from_list():
self.download_deferreds.remove(d)
self.stream_frames.remove(stream_frame)
d.addBoth(lambda _: remove_from_list())
