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gallery-dl/gallery_dl/__init__.py
2019-11-24 00:42:28 +01:00

263 lines
8.5 KiB
Python

# -*- coding: utf-8 -*-
# Copyright 2014-2019 Mike Fährmann
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 2 as
# published by the Free Software Foundation.
from __future__ import unicode_literals, print_function
__author__ = "Mike Fährmann"
__copyright__ = "Copyright 2014-2018 Mike Fährmann"
__license__ = "GPLv2"
__maintainer__ = "Mike Fährmann"
__email__ = "mike_faehrmann@web.de"
import sys
if sys.hexversion < 0x3040000:
sys.exit("Python 3.4+ required")
import json
import logging
from . import version, config, option, output, extractor, job, util, exception
__version__ = version.__version__
def progress(urls, pformat):
"""Wrapper around urls to output a simple progress indicator"""
if pformat is True:
pformat = "[{current}/{total}] {url}"
pinfo = {"total": len(urls)}
for pinfo["current"], pinfo["url"] in enumerate(urls, 1):
print(pformat.format_map(pinfo), file=sys.stderr)
yield pinfo["url"]
def parse_inputfile(file, log):
"""Filter and process strings from an input file.
Lines starting with '#' and empty lines will be ignored.
Lines starting with '-' will be interpreted as a key-value pair separated
by an '='. where 'key' is a dot-separated option name and 'value' is a
JSON-parsable value for it. These config options will be applied while
processing the next URL.
Lines starting with '-G' are the same as above, except these options will
be valid for all following URLs, i.e. they are Global.
Everything else will be used as potential URL.
Example input file:
# settings global options
-G base-directory = "/tmp/"
-G skip = false
# setting local options for the next URL
-filename="spaces_are_optional.jpg"
-skip = true
https://example.org/
# next URL uses default filename and 'skip' is false.
https://example.com/index.htm
"""
gconf = []
lconf = []
for line in file:
line = line.strip()
if not line or line[0] == "#":
# empty line or comment
continue
elif line[0] == "-":
# config spec
if len(line) >= 2 and line[1] == "G":
conf = gconf
line = line[2:]
else:
conf = lconf
line = line[1:]
key, sep, value = line.partition("=")
if not sep:
log.warning("input file: invalid <key>=<value> pair: %s", line)
continue
try:
value = json.loads(value.strip())
except ValueError as exc:
log.warning("input file: unable to parse '%s': %s", value, exc)
continue
key = key.strip().split(".")
conf.append((key[:-1], key[-1], value))
else:
# url
if gconf or lconf:
yield util.ExtendedUrl(line, gconf, lconf)
gconf = []
lconf = []
else:
yield line
def main():
try:
if sys.stdout.encoding.lower() != "utf-8":
output.replace_std_streams()
parser = option.build_parser()
args = parser.parse_args()
log = output.initialize_logging(args.loglevel)
# configuration
if args.load_config:
config.load()
if args.cfgfiles:
config.load(args.cfgfiles, strict=True)
if args.yamlfiles:
config.load(args.yamlfiles, strict=True, fmt="yaml")
if args.postprocessors:
config.set((), "postprocessors", args.postprocessors)
if args.abort:
config.set((), "skip", "abort:" + str(args.abort))
for opts in args.options:
config.set(*opts)
# stream logging handler
output.configure_logging_handler(
"log", logging.getLogger().handlers[0])
# file logging handler
handler = output.setup_logging_handler(
"logfile", lvl=args.loglevel)
if handler:
logging.getLogger().addHandler(handler)
# loglevels
if args.loglevel >= logging.ERROR:
config.set(("output",), "mode", "null")
elif args.loglevel <= logging.DEBUG:
import platform
import subprocess
import os.path
import requests
head = ""
try:
out, err = subprocess.Popen(
("git", "rev-parse", "--short", "HEAD"),
stdout=subprocess.PIPE,
stderr=subprocess.PIPE,
cwd=os.path.dirname(os.path.abspath(__file__)),
).communicate()
if out and not err:
head = " - Git HEAD: " + out.decode().rstrip()
except (OSError, subprocess.SubprocessError):
pass
log.debug("Version %s%s", __version__, head)
log.debug("Python %s - %s",
platform.python_version(), platform.platform())
try:
log.debug("requests %s - urllib3 %s",
requests.__version__,
requests.packages.urllib3.__version__)
except AttributeError:
pass
if args.list_modules:
for module_name in extractor.modules:
print(module_name)
elif args.list_extractors:
for extr in extractor.extractors():
if not extr.__doc__:
continue
print(extr.__name__)
print(extr.__doc__)
print("Category:", extr.category,
"- Subcategory:", extr.subcategory)
test = next(extr._get_tests(), None)
if test:
print("Example :", test[0])
print()
elif args.clear_cache:
from . import cache
log = logging.getLogger("cache")
cnt = cache.clear()
if cnt is None:
log.error("Database file not available")
else:
log.info(
"Deleted %d %s from '%s'",
cnt, "entry" if cnt == 1 else "entries", cache._path(),
)
else:
if not args.urls and not args.inputfile:
parser.error(
"The following arguments are required: URL\n"
"Use 'gallery-dl --help' to get a list of all options.")
if args.list_urls:
jobtype = job.UrlJob
jobtype.maxdepth = args.list_urls
else:
jobtype = args.jobtype or job.DownloadJob
urls = args.urls
if args.inputfile:
try:
if args.inputfile == "-":
file = sys.stdin
else:
file = open(args.inputfile, encoding="utf-8")
urls += parse_inputfile(file, log)
file.close()
except OSError as exc:
log.warning("input file: %s", exc)
# unsupported file logging handler
handler = output.setup_logging_handler(
"unsupportedfile", fmt="{message}")
if handler:
ulog = logging.getLogger("unsupported")
ulog.addHandler(handler)
ulog.propagate = False
job.Job.ulog = ulog
pformat = config.get(("output",), "progress", True)
if pformat and len(urls) > 1 and args.loglevel < logging.ERROR:
urls = progress(urls, pformat)
retval = 0
for url in urls:
try:
log.debug("Starting %s for '%s'", jobtype.__name__, url)
if isinstance(url, util.ExtendedUrl):
for opts in url.gconfig:
config.set(*opts)
with config.apply(url.lconfig):
retval |= jobtype(url.value).run()
else:
retval |= jobtype(url).run()
except exception.NoExtractorError:
log.error("No suitable extractor found for '%s'", url)
retval |= 64
return retval
except KeyboardInterrupt:
sys.exit("\nKeyboardInterrupt")
except BrokenPipeError:
pass
except OSError as exc:
import errno
if exc.errno != errno.EPIPE:
raise
return 1