mirror of
https://github.com/moparisthebest/SickRage
synced 2024-12-12 11:02:21 -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!
268 lines
9.7 KiB
Python
268 lines
9.7 KiB
Python
"""
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ACE parser
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From wotsit.org and the SDK header (bitflags)
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Partial study of a new block type (5) I've called "new_recovery", as its
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syntax is very close to the former one (of type 2).
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Status: can only read totally file and header blocks.
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Author: Christophe Gisquet <christophe.gisquet@free.fr>
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Creation date: 19 january 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 (StaticFieldSet, FieldSet,
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Bit, Bits, NullBits, RawBytes, Enum,
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UInt8, UInt16, UInt32,
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PascalString8, PascalString16, String,
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TimeDateMSDOS32)
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from lib.hachoir_core.text_handler import textHandler, filesizeHandler, hexadecimal
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from lib.hachoir_core.endian import LITTLE_ENDIAN
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from lib.hachoir_parser.common.msdos import MSDOSFileAttr32
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MAGIC = "**ACE**"
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OS_MSDOS = 0
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OS_WIN32 = 2
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HOST_OS = {
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0: "MS-DOS",
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1: "OS/2",
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2: "Win32",
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3: "Unix",
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4: "MAC-OS",
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5: "Win NT",
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6: "Primos",
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7: "APPLE GS",
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8: "ATARI",
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9: "VAX VMS",
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10: "AMIGA",
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11: "NEXT",
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}
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COMPRESSION_TYPE = {
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0: "Store",
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1: "Lempel-Ziv 77",
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2: "ACE v2.0",
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}
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COMPRESSION_MODE = {
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0: "fastest",
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1: "fast",
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2: "normal",
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3: "good",
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4: "best",
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}
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# TODO: Computing the CRC16 would also prove useful
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#def markerValidate(self):
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# return not self["extend"].value and self["signature"].value == MAGIC and \
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# self["host_os"].value<12
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class MarkerFlags(StaticFieldSet):
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format = (
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(Bit, "extend", "Whether the header is extended"),
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(Bit, "has_comment", "Whether the archive has a comment"),
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(NullBits, "unused", 7, "Reserved bits"),
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(Bit, "sfx", "SFX"),
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(Bit, "limited_dict", "Junior SFX with 256K dictionary"),
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(Bit, "multi_volume", "Part of a set of ACE archives"),
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(Bit, "has_av_string", "This header holds an AV-string"),
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(Bit, "recovery_record", "Recovery record preset"),
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(Bit, "locked", "Archive is locked"),
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(Bit, "solid", "Archive uses solid compression")
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)
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def markerFlags(self):
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yield MarkerFlags(self, "flags", "Marker flags")
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def markerHeader(self):
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yield String(self, "signature", 7, "Signature")
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yield UInt8(self, "ver_extract", "Version needed to extract archive")
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yield UInt8(self, "ver_created", "Version used to create archive")
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yield Enum(UInt8(self, "host_os", "OS where the files were compressed"), HOST_OS)
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yield UInt8(self, "vol_num", "Volume number")
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yield TimeDateMSDOS32(self, "time", "Date and time (MS DOS format)")
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yield Bits(self, "reserved", 64, "Reserved size for future extensions")
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flags = self["flags"]
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if flags["has_av_string"].value:
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yield PascalString8(self, "av_string", "AV String")
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if flags["has_comment"].value:
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size = filesizeHandler(UInt16(self, "comment_size", "Comment size"))
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yield size
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if size.value > 0:
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yield RawBytes(self, "compressed_comment", size.value, \
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"Compressed comment")
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class FileFlags(StaticFieldSet):
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format = (
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(Bit, "extend", "Whether the header is extended"),
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(Bit, "has_comment", "Presence of file comment"),
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(Bits, "unused", 10, "Unused bit flags"),
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(Bit, "encrypted", "File encrypted with password"),
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(Bit, "previous", "File continued from previous volume"),
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(Bit, "next", "File continues on the next volume"),
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(Bit, "solid", "File compressed using previously archived files")
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)
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def fileFlags(self):
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yield FileFlags(self, "flags", "File flags")
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def fileHeader(self):
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yield filesizeHandler(UInt32(self, "compressed_size", "Size of the compressed file"))
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yield filesizeHandler(UInt32(self, "uncompressed_size", "Uncompressed file size"))
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yield TimeDateMSDOS32(self, "ftime", "Date and time (MS DOS format)")
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if self["/header/host_os"].value in (OS_MSDOS, OS_WIN32):
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yield MSDOSFileAttr32(self, "file_attr", "File attributes")
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else:
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yield textHandler(UInt32(self, "file_attr", "File attributes"), hexadecimal)
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yield textHandler(UInt32(self, "file_crc32", "CRC32 checksum over the compressed file)"), hexadecimal)
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yield Enum(UInt8(self, "compression_type", "Type of compression"), COMPRESSION_TYPE)
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yield Enum(UInt8(self, "compression_mode", "Quality of compression"), COMPRESSION_MODE)
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yield textHandler(UInt16(self, "parameters", "Compression parameters"), hexadecimal)
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yield textHandler(UInt16(self, "reserved", "Reserved data"), hexadecimal)
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# Filename
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yield PascalString16(self, "filename", "Filename")
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# Comment
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if self["flags/has_comment"].value:
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yield filesizeHandler(UInt16(self, "comment_size", "Size of the compressed comment"))
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if self["comment_size"].value > 0:
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yield RawBytes(self, "comment_data", self["comment_size"].value, "Comment data")
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def fileBody(self):
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size = self["compressed_size"].value
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if size > 0:
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yield RawBytes(self, "compressed_data", size, "Compressed data")
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def fileDesc(self):
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return "File entry: %s (%s)" % (self["filename"].value, self["compressed_size"].display)
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def recoveryHeader(self):
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yield filesizeHandler(UInt32(self, "rec_blk_size", "Size of recovery data"))
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self.body_size = self["rec_blk_size"].size
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yield String(self, "signature", 7, "Signature, normally '**ACE**'")
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yield textHandler(UInt32(self, "relative_start",
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"Relative start (to this block) of the data this block is mode of"),
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hexadecimal)
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yield UInt32(self, "num_blocks", "Number of blocks the data is split into")
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yield UInt32(self, "size_blocks", "Size of these blocks")
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yield UInt16(self, "crc16_blocks", "CRC16 over recovery data")
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# size_blocks blocks of size size_blocks follow
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# The ultimate data is the xor data of all those blocks
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size = self["size_blocks"].value
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for index in xrange(self["num_blocks"].value):
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yield RawBytes(self, "data[]", size, "Recovery block %i" % index)
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yield RawBytes(self, "xor_data", size, "The XOR value of the above data blocks")
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def recoveryDesc(self):
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return "Recovery block, size=%u" % self["body_size"].display
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def newRecoveryHeader(self):
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"""
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This header is described nowhere
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"""
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if self["flags/extend"].value:
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yield filesizeHandler(UInt32(self, "body_size", "Size of the unknown body following"))
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self.body_size = self["body_size"].value
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yield textHandler(UInt32(self, "unknown[]", "Unknown field, probably 0"),
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hexadecimal)
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yield String(self, "signature", 7, "Signature, normally '**ACE**'")
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yield textHandler(UInt32(self, "relative_start",
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"Offset (=crc16's) of this block in the file"), hexadecimal)
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yield textHandler(UInt32(self, "unknown[]",
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"Unknown field, probably 0"), hexadecimal)
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class BaseFlags(StaticFieldSet):
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format = (
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(Bit, "extend", "Whether the header is extended"),
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(NullBits, "unused", 15, "Unused bit flags")
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)
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def parseFlags(self):
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yield BaseFlags(self, "flags", "Unknown flags")
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def parseHeader(self):
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if self["flags/extend"].value:
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yield filesizeHandler(UInt32(self, "body_size", "Size of the unknown body following"))
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self.body_size = self["body_size"].value
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def parseBody(self):
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if self.body_size > 0:
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yield RawBytes(self, "body_data", self.body_size, "Body data, unhandled")
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class Block(FieldSet):
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TAG_INFO = {
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0: ("header", "Archiver header", markerFlags, markerHeader, None),
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1: ("file[]", fileDesc, fileFlags, fileHeader, fileBody),
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2: ("recovery[]", recoveryDesc, recoveryHeader, None, None),
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5: ("new_recovery[]", None, None, newRecoveryHeader, None)
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}
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def __init__(self, parent, name, description=None):
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FieldSet.__init__(self, parent, name, description)
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self.body_size = 0
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self.desc_func = None
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type = self["block_type"].value
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if type in self.TAG_INFO:
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self._name, desc, self.parseFlags, self.parseHeader, self.parseBody = self.TAG_INFO[type]
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if desc:
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if isinstance(desc, str):
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self._description = desc
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else:
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self.desc_func = desc
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else:
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self.warning("Processing as unknown block block of type %u" % type)
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if not self.parseFlags:
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self.parseFlags = parseFlags
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if not self.parseHeader:
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self.parseHeader = parseHeader
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if not self.parseBody:
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self.parseBody = parseBody
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def createFields(self):
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yield textHandler(UInt16(self, "crc16", "Archive CRC16 (from byte 4 on)"), hexadecimal)
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yield filesizeHandler(UInt16(self, "head_size", "Block size (from byte 4 on)"))
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yield UInt8(self, "block_type", "Block type")
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# Flags
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for flag in self.parseFlags(self):
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yield flag
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# Rest of the header
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for field in self.parseHeader(self):
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yield field
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size = self["head_size"].value - (self.current_size//8) + (2+2)
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if size > 0:
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yield RawBytes(self, "extra_data", size, "Extra header data, unhandled")
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# Body in itself
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for field in self.parseBody(self):
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yield field
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def createDescription(self):
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if self.desc_func:
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return self.desc_func(self)
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else:
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return "Block: %s" % self["type"].display
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class AceFile(Parser):
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endian = LITTLE_ENDIAN
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PARSER_TAGS = {
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"id": "ace",
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"category": "archive",
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"file_ext": ("ace",),
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"mime": (u"application/x-ace-compressed",),
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"min_size": 50*8,
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"description": "ACE archive"
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}
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def validate(self):
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if self.stream.readBytes(7*8, len(MAGIC)) != MAGIC:
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return "Invalid magic"
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return True
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def createFields(self):
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while not self.eof:
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yield Block(self, "block[]")
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