mirror of
https://github.com/moparisthebest/SickRage
synced 2024-11-14 13:25:11 -05:00
0d9fbc1ad7
This version of SickBeard uses both TVDB and TVRage to search and gather it's series data from allowing you to now have access to and download shows that you couldn't before because of being locked into only what TheTVDB had to offer. Also this edition is based off the code we used in our XEM editon so it does come with scene numbering support as well as all the other features our XEM edition has to offer. Please before using this with your existing database (sickbeard.db) please make a backup copy of it and delete any other database files such as cache.db and failed.db if present, we HIGHLY recommend starting out with no database files at all to make this a fresh start but the choice is at your own risk! Enjoy!
130 lines
4.7 KiB
Python
130 lines
4.7 KiB
Python
"""
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GZIP archive parser.
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Author: Victor Stinner
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"""
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from lib.hachoir_parser import Parser
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from lib.hachoir_core.field import (
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UInt8, UInt16, UInt32, Enum, TimestampUnix32,
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Bit, CString, SubFile,
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NullBits, Bytes, RawBytes)
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from lib.hachoir_core.text_handler import textHandler, hexadecimal, filesizeHandler
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from lib.hachoir_core.endian import LITTLE_ENDIAN
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from lib.hachoir_parser.common.deflate import Deflate
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class GzipParser(Parser):
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endian = LITTLE_ENDIAN
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PARSER_TAGS = {
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"id": "gzip",
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"category": "archive",
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"file_ext": ("gz",),
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"mime": (u"application/x-gzip",),
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"min_size": 18*8,
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#"magic": (('\x1F\x8B\x08', 0),),
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"magic_regex": (
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# (magic, compression=deflate, <flags>, <mtime>, )
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('\x1F\x8B\x08.{5}[\0\2\4\6][\x00-\x0D]', 0),
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),
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"description": u"gzip archive",
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}
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os_name = {
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0: u"FAT filesystem",
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1: u"Amiga",
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2: u"VMS (or OpenVMS)",
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3: u"Unix",
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4: u"VM/CMS",
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5: u"Atari TOS",
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6: u"HPFS filesystem (OS/2, NT)",
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7: u"Macintosh",
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8: u"Z-System",
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9: u"CP/M",
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10: u"TOPS-20",
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11: u"NTFS filesystem (NT)",
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12: u"QDOS",
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13: u"Acorn RISCOS",
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}
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COMPRESSION_NAME = {
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8: u"deflate",
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}
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def validate(self):
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if self["signature"].value != '\x1F\x8B':
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return "Invalid signature"
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if self["compression"].value not in self.COMPRESSION_NAME:
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return "Unknown compression method (%u)" % self["compression"].value
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if self["reserved[0]"].value != 0:
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return "Invalid reserved[0] value"
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if self["reserved[1]"].value != 0:
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return "Invalid reserved[1] value"
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if self["reserved[2]"].value != 0:
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return "Invalid reserved[2] value"
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return True
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def createFields(self):
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# Gzip header
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yield Bytes(self, "signature", 2, r"GZip file signature (\x1F\x8B)")
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yield Enum(UInt8(self, "compression", "Compression method"), self.COMPRESSION_NAME)
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# Flags
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yield Bit(self, "is_text", "File content is probably ASCII text")
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yield Bit(self, "has_crc16", "Header CRC16")
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yield Bit(self, "has_extra", "Extra informations (variable size)")
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yield Bit(self, "has_filename", "Contains filename?")
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yield Bit(self, "has_comment", "Contains comment?")
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yield NullBits(self, "reserved[]", 3)
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yield TimestampUnix32(self, "mtime", "Modification time")
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# Extra flags
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yield NullBits(self, "reserved[]", 1)
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yield Bit(self, "slowest", "Compressor used maximum compression (slowest)")
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yield Bit(self, "fastest", "Compressor used the fastest compression")
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yield NullBits(self, "reserved[]", 5)
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yield Enum(UInt8(self, "os", "Operating system"), self.os_name)
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# Optional fields
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if self["has_extra"].value:
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yield UInt16(self, "extra_length", "Extra length")
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yield RawBytes(self, "extra", self["extra_length"].value, "Extra")
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if self["has_filename"].value:
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yield CString(self, "filename", "Filename", charset="ISO-8859-1")
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if self["has_comment"].value:
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yield CString(self, "comment", "Comment")
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if self["has_crc16"].value:
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yield textHandler(UInt16(self, "hdr_crc16", "CRC16 of the header"),
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hexadecimal)
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if self._size is None: # TODO: is it possible to handle piped input?
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raise NotImplementedError()
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# Read file
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size = (self._size - self.current_size) // 8 - 8 # -8: crc32+size
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if 0 < size:
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if self["has_filename"].value:
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filename = self["filename"].value
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else:
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for tag, filename in self.stream.tags:
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if tag == "filename" and filename.endswith(".gz"):
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filename = filename[:-3]
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break
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else:
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filename = None
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yield Deflate(SubFile(self, "file", size, filename=filename))
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# Footer
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yield textHandler(UInt32(self, "crc32",
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"Uncompressed data content CRC32"), hexadecimal)
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yield filesizeHandler(UInt32(self, "size", "Uncompressed size"))
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def createDescription(self):
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desc = u"gzip archive"
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info = []
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if "filename" in self:
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info.append('filename "%s"' % self["filename"].value)
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if "size" in self:
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info.append("was %s" % self["size"].display)
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if self["mtime"].value:
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info.append(self["mtime"].display)
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return "%s: %s" % (desc, ", ".join(info))
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