init
This commit is contained in:
alyssadev
commit
8c58321c7a
2
.gitignore
vendored
Normal file
2
.gitignore
vendored
Normal file
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|
@ -0,0 +1,2 @@
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__pycache__
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*.pyc
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11
README.md
Normal file
11
README.md
Normal file
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@ -0,0 +1,11 @@
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|||
nzbdl
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=====
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A python CLI application for downloading the files referenced by an [NZB](https://en.wikipedia.org/wiki/NZB) file.
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```bash
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pip3 install git+https://github.com/sabnzbd/sabyenc
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python3 nzbdl.py "Big Buck Bunny.nzb"
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# if articles were missing when attempting download:
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cd dl; par2 repair *.par2
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```
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77
nntpdl.py
Normal file
77
nntpdl.py
Normal file
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@ -0,0 +1,77 @@
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#!/usr/bin/env python3
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from nntplib import NNTPPermanentError, NNTPTemporaryError
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from nntplib import NNTP_SSL as NNTP
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import sabyenc3
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from re import search
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import os.path
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from os import environ
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from getpass import getpass
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from sys import stderr
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server = environ.get("NNTP_SERVER", "localhost")
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user = environ.get("NNTP_USER", "user")
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password = environ.get("NNTP_PASSWORD", None)
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if not password:
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password = getpass()
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N = NNTP(server, user=user, password=password)
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lastgroup = None
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dest = environ.get("NNTP_DEST", "./dl")
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def debug(text):
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print(text, file=stderr)
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def set_group(group):
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global lastgroup
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if lastgroup != group:
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lastgroup = group
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return N.group(group)
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def get_part(message_id, group=None):
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global N
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if group:
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set_group(group)
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try:
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resp, info = N.article(f"<{message_id}>")
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except NNTPTemporaryError:
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raise
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lines = info.lines[info.lines.index(b'')+1:]
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size = search('size=(.\d+?) ', lines[-1].decode("utf-8"))
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if size:
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size = int(size.group(1))
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else:
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raise Exception(f"Can't find size in {lines[-1].decode('utf-8')}")
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decoded_data, output_filename, crc, crc_yenc, crc_correct = sabyenc3.decode_usenet_chunks(lines,size)
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return decoded_data
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def get_file(message_ids, group=None, filename=None, sizes=None):
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f = b''
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for n,m in enumerate(message_ids):
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debug(f"downloading {n+1} of {len(message_ids)}")
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try:
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f += get_part(m, group=group)
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except NNTPTemporaryError:
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debug(f"Couldn't get that article, adding 0x00 * {str(sizes[n])}")
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f += b"\0" * sizes[n]
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continue
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if filename:
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with open(os.path.join(dest, filename), "wb") as fh:
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fh.write(f)
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else:
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return f
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def main():
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from argparse import ArgumentParser
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parser = ArgumentParser()
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parser.add_argument("group")
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parser.add_argument("message", nargs="+")
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parser.add_argument("--filename")
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args = parser.parse_args()
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if not args.filename:
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print(get_file(args.message, group=args.group))
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else:
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get_file(args.message, group=args.group, filename=args.filename)
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return 0
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if __name__ == "__main__":
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from sys import exit
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exit(main())
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41
nzbdl.py
Normal file
41
nzbdl.py
Normal file
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@ -0,0 +1,41 @@
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#!/usr/bin/env python3
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from xmltodict import parse
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from nntpdl import get_file
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def get_files(nzb_dict):
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out = {}
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for f in nzb_dict["nzb"]["file"]:
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fn = f["@subject"].split('"')[1]
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if type(f["segments"]["segment"]) is not list:
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segments = [f["segments"]["segment"]["#text"]]
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sizes = [f["segments"]["segment"]["@bytes"]]
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else:
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segments = []
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sizes = []
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for segment in f["segments"]["segment"]:
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segments.append(segment["#text"])
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sizes.append(int(segment["@bytes"]))
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if type(f["groups"]["group"]) is not list:
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out[fn] = (f["groups"]["group"], segments, sizes)
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else:
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out[fn] = ( [g["#text"] for g in f["groups"]["group"]], segments, sizes)
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return out
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def main():
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from argparse import ArgumentParser
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parser = ArgumentParser()
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parser.add_argument("nzb")
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args = parser.parse_args()
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with open(args.nzb) as f:
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data = parse(f.read())
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files = get_files(data)
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for k,v in files.items():
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print(f"downloading {k}")
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get_file(v[1], group=v[0], filename=k, sizes=v[2])
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return 0
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if __name__ == "__main__":
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from sys import exit
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exit(main())
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488
xmltodict.py
Normal file
488
xmltodict.py
Normal file
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@ -0,0 +1,488 @@
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#!/usr/bin/env python
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"Makes working with XML feel like you are working with JSON"
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try:
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from defusedexpat import pyexpat as expat
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except ImportError:
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from xml.parsers import expat
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from xml.sax.saxutils import XMLGenerator
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from xml.sax.xmlreader import AttributesImpl
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try: # pragma no cover
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from cStringIO import StringIO
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except ImportError: # pragma no cover
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try:
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from StringIO import StringIO
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except ImportError:
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from io import StringIO
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from collections import OrderedDict
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try: # pragma no cover
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_basestring = basestring
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except NameError: # pragma no cover
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_basestring = str
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try: # pragma no cover
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_unicode = unicode
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except NameError: # pragma no cover
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_unicode = str
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__author__ = 'Martin Blech'
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__version__ = '0.12.0'
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__license__ = 'MIT'
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class ParsingInterrupted(Exception):
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pass
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class _DictSAXHandler(object):
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def __init__(self,
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item_depth=0,
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item_callback=lambda *args: True,
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xml_attribs=True,
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attr_prefix='@',
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cdata_key='#text',
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force_cdata=False,
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cdata_separator='',
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postprocessor=None,
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dict_constructor=OrderedDict,
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strip_whitespace=True,
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namespace_separator=':',
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namespaces=None,
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force_list=None):
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self.path = []
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self.stack = []
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self.data = []
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self.item = None
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self.item_depth = item_depth
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self.xml_attribs = xml_attribs
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self.item_callback = item_callback
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self.attr_prefix = attr_prefix
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self.cdata_key = cdata_key
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self.force_cdata = force_cdata
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self.cdata_separator = cdata_separator
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self.postprocessor = postprocessor
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self.dict_constructor = dict_constructor
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self.strip_whitespace = strip_whitespace
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self.namespace_separator = namespace_separator
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self.namespaces = namespaces
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self.namespace_declarations = OrderedDict()
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self.force_list = force_list
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||||
def _build_name(self, full_name):
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if not self.namespaces:
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return full_name
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i = full_name.rfind(self.namespace_separator)
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if i == -1:
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return full_name
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namespace, name = full_name[:i], full_name[i+1:]
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short_namespace = self.namespaces.get(namespace, namespace)
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if not short_namespace:
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return name
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else:
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return self.namespace_separator.join((short_namespace, name))
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def _attrs_to_dict(self, attrs):
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if isinstance(attrs, dict):
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return attrs
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return self.dict_constructor(zip(attrs[0::2], attrs[1::2]))
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def startNamespaceDecl(self, prefix, uri):
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self.namespace_declarations[prefix or ''] = uri
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|
||||
def startElement(self, full_name, attrs):
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||||
name = self._build_name(full_name)
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||||
attrs = self._attrs_to_dict(attrs)
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if attrs and self.namespace_declarations:
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attrs['xmlns'] = self.namespace_declarations
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self.namespace_declarations = OrderedDict()
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self.path.append((name, attrs or None))
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||||
if len(self.path) > self.item_depth:
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self.stack.append((self.item, self.data))
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if self.xml_attribs:
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attr_entries = []
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for key, value in attrs.items():
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key = self.attr_prefix+self._build_name(key)
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if self.postprocessor:
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entry = self.postprocessor(self.path, key, value)
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||||
else:
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||||
entry = (key, value)
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||||
if entry:
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||||
attr_entries.append(entry)
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attrs = self.dict_constructor(attr_entries)
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||||
else:
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||||
attrs = None
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||||
self.item = attrs or None
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||||
self.data = []
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||||
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||||
def endElement(self, full_name):
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||||
name = self._build_name(full_name)
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||||
if len(self.path) == self.item_depth:
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||||
item = self.item
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||||
if item is None:
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||||
item = (None if not self.data
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||||
else self.cdata_separator.join(self.data))
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||||
should_continue = self.item_callback(self.path, item)
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||||
if not should_continue:
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||||
raise ParsingInterrupted()
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||||
if len(self.stack):
|
||||
data = (None if not self.data
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||||
else self.cdata_separator.join(self.data))
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||||
item = self.item
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||||
self.item, self.data = self.stack.pop()
|
||||
if self.strip_whitespace and data:
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||||
data = data.strip() or None
|
||||
if data and self.force_cdata and item is None:
|
||||
item = self.dict_constructor()
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||||
if item is not None:
|
||||
if data:
|
||||
self.push_data(item, self.cdata_key, data)
|
||||
self.item = self.push_data(self.item, name, item)
|
||||
else:
|
||||
self.item = self.push_data(self.item, name, data)
|
||||
else:
|
||||
self.item = None
|
||||
self.data = []
|
||||
self.path.pop()
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||||
|
||||
def characters(self, data):
|
||||
if not self.data:
|
||||
self.data = [data]
|
||||
else:
|
||||
self.data.append(data)
|
||||
|
||||
def push_data(self, item, key, data):
|
||||
if self.postprocessor is not None:
|
||||
result = self.postprocessor(self.path, key, data)
|
||||
if result is None:
|
||||
return item
|
||||
key, data = result
|
||||
if item is None:
|
||||
item = self.dict_constructor()
|
||||
try:
|
||||
value = item[key]
|
||||
if isinstance(value, list):
|
||||
value.append(data)
|
||||
else:
|
||||
item[key] = [value, data]
|
||||
except KeyError:
|
||||
if self._should_force_list(key, data):
|
||||
item[key] = [data]
|
||||
else:
|
||||
item[key] = data
|
||||
return item
|
||||
|
||||
def _should_force_list(self, key, value):
|
||||
if not self.force_list:
|
||||
return False
|
||||
if isinstance(self.force_list, bool):
|
||||
return self.force_list
|
||||
try:
|
||||
return key in self.force_list
|
||||
except TypeError:
|
||||
return self.force_list(self.path[:-1], key, value)
|
||||
|
||||
|
||||
def parse(xml_input, encoding=None, expat=expat, process_namespaces=False,
|
||||
namespace_separator=':', disable_entities=True, **kwargs):
|
||||
"""Parse the given XML input and convert it into a dictionary.
|
||||
|
||||
`xml_input` can either be a `string` or a file-like object.
|
||||
|
||||
If `xml_attribs` is `True`, element attributes are put in the dictionary
|
||||
among regular child elements, using `@` as a prefix to avoid collisions. If
|
||||
set to `False`, they are just ignored.
|
||||
|
||||
Simple example::
|
||||
|
||||
>>> import xmltodict
|
||||
>>> doc = xmltodict.parse(\"\"\"
|
||||
... <a prop="x">
|
||||
... <b>1</b>
|
||||
... <b>2</b>
|
||||
... </a>
|
||||
... \"\"\")
|
||||
>>> doc['a']['@prop']
|
||||
u'x'
|
||||
>>> doc['a']['b']
|
||||
[u'1', u'2']
|
||||
|
||||
If `item_depth` is `0`, the function returns a dictionary for the root
|
||||
element (default behavior). Otherwise, it calls `item_callback` every time
|
||||
an item at the specified depth is found and returns `None` in the end
|
||||
(streaming mode).
|
||||
|
||||
The callback function receives two parameters: the `path` from the document
|
||||
root to the item (name-attribs pairs), and the `item` (dict). If the
|
||||
callback's return value is false-ish, parsing will be stopped with the
|
||||
:class:`ParsingInterrupted` exception.
|
||||
|
||||
Streaming example::
|
||||
|
||||
>>> def handle(path, item):
|
||||
... print('path:%s item:%s' % (path, item))
|
||||
... return True
|
||||
...
|
||||
>>> xmltodict.parse(\"\"\"
|
||||
... <a prop="x">
|
||||
... <b>1</b>
|
||||
... <b>2</b>
|
||||
... </a>\"\"\", item_depth=2, item_callback=handle)
|
||||
path:[(u'a', {u'prop': u'x'}), (u'b', None)] item:1
|
||||
path:[(u'a', {u'prop': u'x'}), (u'b', None)] item:2
|
||||
|
||||
The optional argument `postprocessor` is a function that takes `path`,
|
||||
`key` and `value` as positional arguments and returns a new `(key, value)`
|
||||
pair where both `key` and `value` may have changed. Usage example::
|
||||
|
||||
>>> def postprocessor(path, key, value):
|
||||
... try:
|
||||
... return key + ':int', int(value)
|
||||
... except (ValueError, TypeError):
|
||||
... return key, value
|
||||
>>> xmltodict.parse('<a><b>1</b><b>2</b><b>x</b></a>',
|
||||
... postprocessor=postprocessor)
|
||||
OrderedDict([(u'a', OrderedDict([(u'b:int', [1, 2]), (u'b', u'x')]))])
|
||||
|
||||
You can pass an alternate version of `expat` (such as `defusedexpat`) by
|
||||
using the `expat` parameter. E.g:
|
||||
|
||||
>>> import defusedexpat
|
||||
>>> xmltodict.parse('<a>hello</a>', expat=defusedexpat.pyexpat)
|
||||
OrderedDict([(u'a', u'hello')])
|
||||
|
||||
You can use the force_list argument to force lists to be created even
|
||||
when there is only a single child of a given level of hierarchy. The
|
||||
force_list argument is a tuple of keys. If the key for a given level
|
||||
of hierarchy is in the force_list argument, that level of hierarchy
|
||||
will have a list as a child (even if there is only one sub-element).
|
||||
The index_keys operation takes precendence over this. This is applied
|
||||
after any user-supplied postprocessor has already run.
|
||||
|
||||
For example, given this input:
|
||||
<servers>
|
||||
<server>
|
||||
<name>host1</name>
|
||||
<os>Linux</os>
|
||||
<interfaces>
|
||||
<interface>
|
||||
<name>em0</name>
|
||||
<ip_address>10.0.0.1</ip_address>
|
||||
</interface>
|
||||
</interfaces>
|
||||
</server>
|
||||
</servers>
|
||||
|
||||
If called with force_list=('interface',), it will produce
|
||||
this dictionary:
|
||||
{'servers':
|
||||
{'server':
|
||||
{'name': 'host1',
|
||||
'os': 'Linux'},
|
||||
'interfaces':
|
||||
{'interface':
|
||||
[ {'name': 'em0', 'ip_address': '10.0.0.1' } ] } } }
|
||||
|
||||
`force_list` can also be a callable that receives `path`, `key` and
|
||||
`value`. This is helpful in cases where the logic that decides whether
|
||||
a list should be forced is more complex.
|
||||
"""
|
||||
handler = _DictSAXHandler(namespace_separator=namespace_separator,
|
||||
**kwargs)
|
||||
if isinstance(xml_input, _unicode):
|
||||
if not encoding:
|
||||
encoding = 'utf-8'
|
||||
xml_input = xml_input.encode(encoding)
|
||||
if not process_namespaces:
|
||||
namespace_separator = None
|
||||
parser = expat.ParserCreate(
|
||||
encoding,
|
||||
namespace_separator
|
||||
)
|
||||
try:
|
||||
parser.ordered_attributes = True
|
||||
except AttributeError:
|
||||
# Jython's expat does not support ordered_attributes
|
||||
pass
|
||||
parser.StartNamespaceDeclHandler = handler.startNamespaceDecl
|
||||
parser.StartElementHandler = handler.startElement
|
||||
parser.EndElementHandler = handler.endElement
|
||||
parser.CharacterDataHandler = handler.characters
|
||||
parser.buffer_text = True
|
||||
if disable_entities:
|
||||
try:
|
||||
# Attempt to disable DTD in Jython's expat parser (Xerces-J).
|
||||
feature = "http://apache.org/xml/features/disallow-doctype-decl"
|
||||
parser._reader.setFeature(feature, True)
|
||||
except AttributeError:
|
||||
# For CPython / expat parser.
|
||||
# Anything not handled ends up here and entities aren't expanded.
|
||||
parser.DefaultHandler = lambda x: None
|
||||
# Expects an integer return; zero means failure -> expat.ExpatError.
|
||||
parser.ExternalEntityRefHandler = lambda *x: 1
|
||||
if hasattr(xml_input, 'read'):
|
||||
parser.ParseFile(xml_input)
|
||||
else:
|
||||
parser.Parse(xml_input, True)
|
||||
return handler.item
|
||||
|
||||
|
||||
def _process_namespace(name, namespaces, ns_sep=':', attr_prefix='@'):
|
||||
if not namespaces:
|
||||
return name
|
||||
try:
|
||||
ns, name = name.rsplit(ns_sep, 1)
|
||||
except ValueError:
|
||||
pass
|
||||
else:
|
||||
ns_res = namespaces.get(ns.strip(attr_prefix))
|
||||
name = '{}{}{}{}'.format(
|
||||
attr_prefix if ns.startswith(attr_prefix) else '',
|
||||
ns_res, ns_sep, name) if ns_res else name
|
||||
return name
|
||||
|
||||
|
||||
def _emit(key, value, content_handler,
|
||||
attr_prefix='@',
|
||||
cdata_key='#text',
|
||||
depth=0,
|
||||
preprocessor=None,
|
||||
pretty=False,
|
||||
newl='\n',
|
||||
indent='\t',
|
||||
namespace_separator=':',
|
||||
namespaces=None,
|
||||
full_document=True):
|
||||
key = _process_namespace(key, namespaces, namespace_separator, attr_prefix)
|
||||
if preprocessor is not None:
|
||||
result = preprocessor(key, value)
|
||||
if result is None:
|
||||
return
|
||||
key, value = result
|
||||
if (not hasattr(value, '__iter__')
|
||||
or isinstance(value, _basestring)
|
||||
or isinstance(value, dict)):
|
||||
value = [value]
|
||||
for index, v in enumerate(value):
|
||||
if full_document and depth == 0 and index > 0:
|
||||
raise ValueError('document with multiple roots')
|
||||
if v is None:
|
||||
v = OrderedDict()
|
||||
elif isinstance(v, bool):
|
||||
if v:
|
||||
v = _unicode('true')
|
||||
else:
|
||||
v = _unicode('false')
|
||||
elif not isinstance(v, dict):
|
||||
v = _unicode(v)
|
||||
if isinstance(v, _basestring):
|
||||
v = OrderedDict(((cdata_key, v),))
|
||||
cdata = None
|
||||
attrs = OrderedDict()
|
||||
children = []
|
||||
for ik, iv in v.items():
|
||||
if ik == cdata_key:
|
||||
cdata = iv
|
||||
continue
|
||||
if ik.startswith(attr_prefix):
|
||||
ik = _process_namespace(ik, namespaces, namespace_separator,
|
||||
attr_prefix)
|
||||
if ik == '@xmlns' and isinstance(iv, dict):
|
||||
for k, v in iv.items():
|
||||
attr = 'xmlns{}'.format(':{}'.format(k) if k else '')
|
||||
attrs[attr] = _unicode(v)
|
||||
continue
|
||||
if not isinstance(iv, _unicode):
|
||||
iv = _unicode(iv)
|
||||
attrs[ik[len(attr_prefix):]] = iv
|
||||
continue
|
||||
children.append((ik, iv))
|
||||
if pretty:
|
||||
content_handler.ignorableWhitespace(depth * indent)
|
||||
content_handler.startElement(key, AttributesImpl(attrs))
|
||||
if pretty and children:
|
||||
content_handler.ignorableWhitespace(newl)
|
||||
for child_key, child_value in children:
|
||||
_emit(child_key, child_value, content_handler,
|
||||
attr_prefix, cdata_key, depth+1, preprocessor,
|
||||
pretty, newl, indent, namespaces=namespaces,
|
||||
namespace_separator=namespace_separator)
|
||||
if cdata is not None:
|
||||
content_handler.characters(cdata)
|
||||
if pretty and children:
|
||||
content_handler.ignorableWhitespace(depth * indent)
|
||||
content_handler.endElement(key)
|
||||
if pretty and depth:
|
||||
content_handler.ignorableWhitespace(newl)
|
||||
|
||||
|
||||
def unparse(input_dict, output=None, encoding='utf-8', full_document=True,
|
||||
short_empty_elements=False,
|
||||
**kwargs):
|
||||
"""Emit an XML document for the given `input_dict` (reverse of `parse`).
|
||||
|
||||
The resulting XML document is returned as a string, but if `output` (a
|
||||
file-like object) is specified, it is written there instead.
|
||||
|
||||
Dictionary keys prefixed with `attr_prefix` (default=`'@'`) are interpreted
|
||||
as XML node attributes, whereas keys equal to `cdata_key`
|
||||
(default=`'#text'`) are treated as character data.
|
||||
|
||||
The `pretty` parameter (default=`False`) enables pretty-printing. In this
|
||||
mode, lines are terminated with `'\n'` and indented with `'\t'`, but this
|
||||
can be customized with the `newl` and `indent` parameters.
|
||||
|
||||
"""
|
||||
if full_document and len(input_dict) != 1:
|
||||
raise ValueError('Document must have exactly one root.')
|
||||
must_return = False
|
||||
if output is None:
|
||||
output = StringIO()
|
||||
must_return = True
|
||||
if short_empty_elements:
|
||||
content_handler = XMLGenerator(output, encoding, True)
|
||||
else:
|
||||
content_handler = XMLGenerator(output, encoding)
|
||||
if full_document:
|
||||
content_handler.startDocument()
|
||||
for key, value in input_dict.items():
|
||||
_emit(key, value, content_handler, full_document=full_document,
|
||||
**kwargs)
|
||||
if full_document:
|
||||
content_handler.endDocument()
|
||||
if must_return:
|
||||
value = output.getvalue()
|
||||
try: # pragma no cover
|
||||
value = value.decode(encoding)
|
||||
except AttributeError: # pragma no cover
|
||||
pass
|
||||
return value
|
||||
|
||||
|
||||
if __name__ == '__main__': # pragma: no cover
|
||||
import sys
|
||||
import marshal
|
||||
try:
|
||||
stdin = sys.stdin.buffer
|
||||
stdout = sys.stdout.buffer
|
||||
except AttributeError:
|
||||
stdin = sys.stdin
|
||||
stdout = sys.stdout
|
||||
|
||||
(item_depth,) = sys.argv[1:]
|
||||
item_depth = int(item_depth)
|
||||
|
||||
def handle_item(path, item):
|
||||
marshal.dump((path, item), stdout)
|
||||
return True
|
||||
|
||||
try:
|
||||
root = parse(stdin,
|
||||
item_depth=item_depth,
|
||||
item_callback=handle_item,
|
||||
dict_constructor=dict)
|
||||
if item_depth == 0:
|
||||
handle_item([], root)
|
||||
except KeyboardInterrupt:
|
||||
pass
|
||||
Loading…
Reference in a new issue