mirror of
https://github.com/SickGear/SickGear.git
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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!
121 lines
4.8 KiB
Python
121 lines
4.8 KiB
Python
"""
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ISO 9660 (cdrom) file system parser.
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Documents:
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- Standard ECMA-119 (december 1987)
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http://www.nondot.org/sabre/os/files/FileSystems/iso9660.pdf
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Author: Victor Stinner
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Creation: 11 july 2006
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"""
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from lib.hachoir_parser import Parser
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from lib.hachoir_core.field import (FieldSet, ParserError,
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UInt8, UInt32, UInt64, Enum,
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NullBytes, RawBytes, String)
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from lib.hachoir_core.endian import LITTLE_ENDIAN, BIG_ENDIAN
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class PrimaryVolumeDescriptor(FieldSet):
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static_size = 2041*8
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def createFields(self):
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yield NullBytes(self, "unused[]", 1)
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yield String(self, "system_id", 32, "System identifier", strip=" ")
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yield String(self, "volume_id", 32, "Volume identifier", strip=" ")
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yield NullBytes(self, "unused[]", 8)
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yield UInt64(self, "space_size", "Volume space size")
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yield NullBytes(self, "unused[]", 32)
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yield UInt32(self, "set_size", "Volume set size")
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yield UInt32(self, "seq_num", "Sequence number")
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yield UInt32(self, "block_size", "Block size")
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yield UInt64(self, "path_table_size", "Path table size")
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yield UInt32(self, "occu_lpath", "Location of Occurrence of Type L Path Table")
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yield UInt32(self, "opt_lpath", "Location of Optional of Type L Path Table")
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yield UInt32(self, "occu_mpath", "Location of Occurrence of Type M Path Table")
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yield UInt32(self, "opt_mpath", "Location of Optional of Type M Path Table")
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yield RawBytes(self, "root", 34, "Directory Record for Root Directory")
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yield String(self, "vol_set_id", 128, "Volume set identifier", strip=" ")
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yield String(self, "publisher", 128, "Publisher identifier", strip=" ")
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yield String(self, "data_preparer", 128, "Data preparer identifier", strip=" ")
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yield String(self, "application", 128, "Application identifier", strip=" ")
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yield String(self, "copyright", 37, "Copyright file identifier", strip=" ")
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yield String(self, "abstract", 37, "Abstract file identifier", strip=" ")
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yield String(self, "biographic", 37, "Biographic file identifier", strip=" ")
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yield String(self, "creation_ts", 17, "Creation date and time", strip=" ")
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yield String(self, "modification_ts", 17, "Modification date and time", strip=" ")
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yield String(self, "expiration_ts", 17, "Expiration date and time", strip=" ")
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yield String(self, "effective_ts", 17, "Effective date and time", strip=" ")
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yield UInt8(self, "struct_ver", "Structure version")
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yield NullBytes(self, "unused[]", 1)
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yield String(self, "app_use", 512, "Application use", strip=" \0")
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yield NullBytes(self, "unused[]", 653)
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class BootRecord(FieldSet):
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static_size = 2041*8
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def createFields(self):
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yield String(self, "sys_id", 31, "Boot system identifier", strip="\0")
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yield String(self, "boot_id", 31, "Boot identifier", strip="\0")
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yield RawBytes(self, "system_use", 1979, "Boot system use")
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class Terminator(FieldSet):
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static_size = 2041*8
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def createFields(self):
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yield NullBytes(self, "null", 2041)
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class Volume(FieldSet):
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endian = BIG_ENDIAN
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TERMINATOR = 255
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type_name = {
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0: "Boot Record",
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1: "Primary Volume Descriptor",
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2: "Supplementary Volume Descriptor",
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3: "Volume Partition Descriptor",
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TERMINATOR: "Volume Descriptor Set Terminator",
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}
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static_size = 2048 * 8
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content_handler = {
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0: BootRecord,
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1: PrimaryVolumeDescriptor,
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TERMINATOR: Terminator,
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}
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def createFields(self):
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yield Enum(UInt8(self, "type", "Volume descriptor type"), self.type_name)
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yield RawBytes(self, "signature", 5, "ISO 9960 signature (CD001)")
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if self["signature"].value != "CD001":
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raise ParserError("Invalid ISO 9960 volume signature")
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yield UInt8(self, "version", "Volume descriptor version")
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cls = self.content_handler.get(self["type"].value, None)
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if cls:
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yield cls(self, "content")
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else:
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yield RawBytes(self, "raw_content", 2048-7)
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class ISO9660(Parser):
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endian = LITTLE_ENDIAN
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MAGIC = "\x01CD001"
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NULL_BYTES = 0x8000
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PARSER_TAGS = {
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"id": "iso9660",
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"category": "file_system",
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"description": "ISO 9660 file system",
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"min_size": (NULL_BYTES + 6)*8,
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"magic": ((MAGIC, NULL_BYTES*8),),
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}
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def validate(self):
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if self.stream.readBytes(self.NULL_BYTES*8, len(self.MAGIC)) != self.MAGIC:
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return "Invalid signature"
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return True
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def createFields(self):
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yield self.seekByte(self.NULL_BYTES, null=True)
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while True:
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volume = Volume(self, "volume[]")
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yield volume
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if volume["type"].value == Volume.TERMINATOR:
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break
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if self.current_size < self._size:
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yield self.seekBit(self._size, "end")
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