mirror of
https://github.com/SickGear/SickGear.git
synced 2024-12-05 02:43:37 +00:00
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!
427 lines
17 KiB
Python
427 lines
17 KiB
Python
"""
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Zip splitter.
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Status: can read most important headers
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Authors: Christophe Gisquet and 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 (FieldSet, ParserError,
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Bit, Bits, Enum,
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TimeDateMSDOS32, SubFile,
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UInt8, UInt16, UInt32, UInt64,
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String, PascalString16,
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RawBytes)
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from lib.hachoir_core.text_handler import textHandler, filesizeHandler, hexadecimal
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from lib.hachoir_core.error import HACHOIR_ERRORS
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from lib.hachoir_core.tools import makeUnicode
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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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MAX_FILESIZE = 1000 * 1024 * 1024
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COMPRESSION_DEFLATE = 8
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COMPRESSION_METHOD = {
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0: u"no compression",
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1: u"Shrunk",
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2: u"Reduced (factor 1)",
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3: u"Reduced (factor 2)",
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4: u"Reduced (factor 3)",
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5: u"Reduced (factor 4)",
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6: u"Imploded",
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7: u"Tokenizing",
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8: u"Deflate",
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9: u"Deflate64",
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10: u"PKWARE Imploding",
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11: u"Reserved by PKWARE",
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12: u"File is compressed using BZIP2 algorithm",
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13: u"Reserved by PKWARE",
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14: u"LZMA (EFS)",
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15: u"Reserved by PKWARE",
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16: u"Reserved by PKWARE",
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17: u"Reserved by PKWARE",
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18: u"File is compressed using IBM TERSE (new)",
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19: u"IBM LZ77 z Architecture (PFS)",
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98: u"PPMd version I, Rev 1",
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}
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def ZipRevision(field):
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return "%u.%u" % divmod(field.value, 10)
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class ZipVersion(FieldSet):
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static_size = 16
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HOST_OS = {
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0: u"FAT file system (DOS, OS/2, NT)",
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1: u"Amiga",
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2: u"VMS (VAX or Alpha AXP)",
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3: u"Unix",
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4: u"VM/CMS",
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5: u"Atari",
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6: u"HPFS file system (OS/2, NT 3.x)",
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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 file system (NT)",
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12: u"SMS/QDOS",
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13: u"Acorn RISC OS",
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14: u"VFAT file system (Win95, NT)",
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15: u"MVS",
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16: u"BeOS (BeBox or PowerMac)",
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17: u"Tandem",
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}
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def createFields(self):
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yield textHandler(UInt8(self, "zip_version", "ZIP version"), ZipRevision)
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yield Enum(UInt8(self, "host_os", "ZIP Host OS"), self.HOST_OS)
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class ZipGeneralFlags(FieldSet):
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static_size = 16
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def createFields(self):
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# Need the compression info from the parent, and that is the byte following
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method = self.stream.readBits(self.absolute_address+16, 16, LITTLE_ENDIAN)
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yield Bits(self, "unused[]", 2, "Unused")
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yield Bit(self, "encrypted_central_dir", "Selected data values in the Local Header are masked")
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yield Bit(self, "incomplete", "Reserved by PKWARE for enhanced compression.")
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yield Bit(self, "uses_unicode", "Filename and comments are in UTF-8")
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yield Bits(self, "unused[]", 4, "Unused")
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yield Bit(self, "strong_encrypt", "Strong encryption (version >= 50)")
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yield Bit(self, "is_patched", "File is compressed with patched data?")
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yield Bit(self, "enhanced_deflate", "Reserved for use with method 8")
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yield Bit(self, "has_descriptor",
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"Compressed data followed by descriptor?")
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if method == 6:
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yield Bit(self, "use_8k_sliding", "Use 8K sliding dictionary (instead of 4K)")
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yield Bit(self, "use_3shannon", "Use a 3 Shannon-Fano tree (instead of 2 Shannon-Fano)")
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elif method in (8, 9):
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NAME = {
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0: "Normal compression",
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1: "Maximum compression",
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2: "Fast compression",
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3: "Super Fast compression"
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}
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yield Enum(Bits(self, "method", 2), NAME)
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elif method == 14: #LZMA
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yield Bit(self, "lzma_eos", "LZMA stream is ended with a EndOfStream marker")
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yield Bit(self, "unused[]")
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else:
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yield Bits(self, "compression_info", 2)
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yield Bit(self, "is_encrypted", "File is encrypted?")
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class ExtraField(FieldSet):
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EXTRA_FIELD_ID = {
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0x0007: "AV Info",
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0x0009: "OS/2 extended attributes (also Info-ZIP)",
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0x000a: "PKWARE Win95/WinNT FileTimes", # undocumented!
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0x000c: "PKWARE VAX/VMS (also Info-ZIP)",
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0x000d: "PKWARE Unix",
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0x000f: "Patch Descriptor",
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0x07c8: "Info-ZIP Macintosh (old, J. Lee)",
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0x2605: "ZipIt Macintosh (first version)",
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0x2705: "ZipIt Macintosh v 1.3.5 and newer (w/o full filename)",
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0x334d: "Info-ZIP Macintosh (new, D. Haase Mac3 field)",
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0x4341: "Acorn/SparkFS (David Pilling)",
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0x4453: "Windows NT security descriptor (binary ACL)",
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0x4704: "VM/CMS",
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0x470f: "MVS",
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0x4b46: "FWKCS MD5 (third party, see below)",
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0x4c41: "OS/2 access control list (text ACL)",
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0x4d49: "Info-ZIP VMS (VAX or Alpha)",
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0x5356: "AOS/VS (binary ACL)",
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0x5455: "extended timestamp",
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0x5855: "Info-ZIP Unix (original; also OS/2, NT, etc.)",
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0x6542: "BeOS (BeBox, PowerMac, etc.)",
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0x756e: "ASi Unix",
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0x7855: "Info-ZIP Unix (new)",
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0xfb4a: "SMS/QDOS",
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}
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def createFields(self):
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yield Enum(UInt16(self, "field_id", "Extra field ID"),
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self.EXTRA_FIELD_ID)
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size = UInt16(self, "field_data_size", "Extra field data size")
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yield size
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if size.value > 0:
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yield RawBytes(self, "field_data", size, "Unknown field data")
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def ZipStartCommonFields(self):
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yield ZipVersion(self, "version_needed", "Version needed")
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yield ZipGeneralFlags(self, "flags", "General purpose flag")
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yield Enum(UInt16(self, "compression", "Compression method"),
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COMPRESSION_METHOD)
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yield TimeDateMSDOS32(self, "last_mod", "Last modification file time")
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yield textHandler(UInt32(self, "crc32", "CRC-32"), hexadecimal)
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yield UInt32(self, "compressed_size", "Compressed size")
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yield UInt32(self, "uncompressed_size", "Uncompressed size")
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yield UInt16(self, "filename_length", "Filename length")
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yield UInt16(self, "extra_length", "Extra fields length")
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def zipGetCharset(self):
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if self["flags/uses_unicode"].value:
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return "UTF-8"
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else:
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return "ISO-8859-15"
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class ZipCentralDirectory(FieldSet):
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HEADER = 0x02014b50
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def createFields(self):
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yield ZipVersion(self, "version_made_by", "Version made by")
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for field in ZipStartCommonFields(self):
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yield field
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# Check unicode status
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charset = zipGetCharset(self)
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yield UInt16(self, "comment_length", "Comment length")
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yield UInt16(self, "disk_number_start", "Disk number start")
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yield UInt16(self, "internal_attr", "Internal file attributes")
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yield UInt32(self, "external_attr", "External file attributes")
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yield UInt32(self, "offset_header", "Relative offset of local header")
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yield String(self, "filename", self["filename_length"].value,
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"Filename", charset=charset)
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if 0 < self["extra_length"].value:
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yield RawBytes(self, "extra", self["extra_length"].value,
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"Extra fields")
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if 0 < self["comment_length"].value:
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yield String(self, "comment", self["comment_length"].value,
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"Comment", charset=charset)
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def createDescription(self):
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return "Central directory: %s" % self["filename"].display
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class Zip64EndCentralDirectory(FieldSet):
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HEADER = 0x06064b50
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def createFields(self):
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yield UInt64(self, "zip64_end_size",
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"Size of zip64 end of central directory record")
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yield ZipVersion(self, "version_made_by", "Version made by")
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yield ZipVersion(self, "version_needed", "Version needed to extract")
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yield UInt32(self, "number_disk", "Number of this disk")
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yield UInt32(self, "number_disk2",
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"Number of the disk with the start of the central directory")
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yield UInt64(self, "number_entries",
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"Total number of entries in the central directory on this disk")
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yield UInt64(self, "number_entries2",
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"Total number of entries in the central directory")
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yield UInt64(self, "size", "Size of the central directory")
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yield UInt64(self, "offset", "Offset of start of central directory")
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if 0 < self["zip64_end_size"].value:
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yield RawBytes(self, "data_sector", self["zip64_end_size"].value,
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"zip64 extensible data sector")
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class ZipEndCentralDirectory(FieldSet):
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HEADER = 0x06054b50
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def createFields(self):
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yield UInt16(self, "number_disk", "Number of this disk")
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yield UInt16(self, "number_disk2", "Number in the central dir")
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yield UInt16(self, "total_number_disk",
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"Total number of entries in this disk")
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yield UInt16(self, "total_number_disk2",
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"Total number of entries in the central dir")
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yield UInt32(self, "size", "Size of the central directory")
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yield UInt32(self, "offset", "Offset of start of central directory")
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yield PascalString16(self, "comment", "ZIP comment")
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class ZipDataDescriptor(FieldSet):
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HEADER_STRING = "\x50\x4B\x07\x08"
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HEADER = 0x08074B50
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static_size = 96
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def createFields(self):
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yield textHandler(UInt32(self, "file_crc32",
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"Checksum (CRC32)"), hexadecimal)
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yield filesizeHandler(UInt32(self, "file_compressed_size",
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"Compressed size (bytes)"))
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yield filesizeHandler(UInt32(self, "file_uncompressed_size",
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"Uncompressed size (bytes)"))
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class FileEntry(FieldSet):
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HEADER = 0x04034B50
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filename = None
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def data(self, size):
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compression = self["compression"].value
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if compression == 0:
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return SubFile(self, "data", size, filename=self.filename)
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compressed = SubFile(self, "compressed_data", size, filename=self.filename)
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if compression == COMPRESSION_DEFLATE:
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return Deflate(compressed)
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else:
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return compressed
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def resync(self):
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# Non-seekable output, search the next data descriptor
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size = self.stream.searchBytesLength(ZipDataDescriptor.HEADER_STRING, False,
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self.absolute_address+self.current_size)
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if size <= 0:
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raise ParserError("Couldn't resync to %s" %
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ZipDataDescriptor.HEADER_STRING)
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yield self.data(size)
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yield textHandler(UInt32(self, "header[]", "Header"), hexadecimal)
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data_desc = ZipDataDescriptor(self, "data_desc", "Data descriptor")
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#self.info("Resynced!")
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yield data_desc
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# The above could be checked anytime, but we prefer trying parsing
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# than aborting
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if self["crc32"].value == 0 and \
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data_desc["file_compressed_size"].value != size:
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raise ParserError("Bad resync: position=>%i but data_desc=>%i" %
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(size, data_desc["file_compressed_size"].value))
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def createFields(self):
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for field in ZipStartCommonFields(self):
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yield field
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length = self["filename_length"].value
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if length:
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filename = String(self, "filename", length, "Filename",
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charset=zipGetCharset(self))
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yield filename
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self.filename = filename.value
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if self["extra_length"].value:
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yield RawBytes(self, "extra", self["extra_length"].value, "Extra")
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size = self["compressed_size"].value
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if size > 0:
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yield self.data(size)
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elif self["flags/incomplete"].value:
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for field in self.resync():
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yield field
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if self["flags/has_descriptor"].value:
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yield ZipDataDescriptor(self, "data_desc", "Data descriptor")
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def createDescription(self):
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return "File entry: %s (%s)" % \
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(self["filename"].value, self["compressed_size"].display)
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def validate(self):
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if self["compression"].value not in COMPRESSION_METHOD:
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return "Unknown compression method (%u)" % self["compression"].value
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return ""
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class ZipSignature(FieldSet):
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HEADER = 0x05054B50
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def createFields(self):
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yield PascalString16(self, "signature", "Signature")
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class Zip64EndCentralDirectoryLocator(FieldSet):
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HEADER = 0x07064b50
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def createFields(self):
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yield UInt32(self, "disk_number", \
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"Number of the disk with the start of the zip64 end of central directory")
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yield UInt64(self, "relative_offset", \
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"Relative offset of the zip64 end of central directory record")
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yield UInt32(self, "disk_total_number", "Total number of disks")
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class ZipFile(Parser):
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endian = LITTLE_ENDIAN
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MIME_TYPES = {
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# Default ZIP archive
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u"application/zip": "zip",
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u"application/x-zip": "zip",
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# Java archive (JAR)
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u"application/x-jar": "jar",
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u"application/java-archive": "jar",
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# OpenOffice 1.0
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u"application/vnd.sun.xml.calc": "sxc",
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u"application/vnd.sun.xml.draw": "sxd",
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u"application/vnd.sun.xml.impress": "sxi",
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u"application/vnd.sun.xml.writer": "sxw",
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u"application/vnd.sun.xml.math": "sxm",
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# OpenOffice 1.0 (template)
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u"application/vnd.sun.xml.calc.template": "stc",
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u"application/vnd.sun.xml.draw.template": "std",
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u"application/vnd.sun.xml.impress.template": "sti",
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u"application/vnd.sun.xml.writer.template": "stw",
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u"application/vnd.sun.xml.writer.global": "sxg",
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# OpenDocument
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u"application/vnd.oasis.opendocument.chart": "odc",
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u"application/vnd.oasis.opendocument.image": "odi",
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u"application/vnd.oasis.opendocument.database": "odb",
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u"application/vnd.oasis.opendocument.formula": "odf",
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u"application/vnd.oasis.opendocument.graphics": "odg",
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u"application/vnd.oasis.opendocument.presentation": "odp",
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u"application/vnd.oasis.opendocument.spreadsheet": "ods",
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u"application/vnd.oasis.opendocument.text": "odt",
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u"application/vnd.oasis.opendocument.text-master": "odm",
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# OpenDocument (template)
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u"application/vnd.oasis.opendocument.graphics-template": "otg",
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u"application/vnd.oasis.opendocument.presentation-template": "otp",
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u"application/vnd.oasis.opendocument.spreadsheet-template": "ots",
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u"application/vnd.oasis.opendocument.text-template": "ott",
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}
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PARSER_TAGS = {
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"id": "zip",
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"category": "archive",
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"file_ext": tuple(MIME_TYPES.itervalues()),
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"mime": tuple(MIME_TYPES.iterkeys()),
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"magic": (("PK\3\4", 0),),
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"subfile": "skip",
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"min_size": (4 + 26)*8, # header + file entry
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"description": "ZIP archive"
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}
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def validate(self):
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if self["header[0]"].value != FileEntry.HEADER:
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return "Invalid magic"
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try:
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file0 = self["file[0]"]
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except HACHOIR_ERRORS, err:
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return "Unable to get file #0"
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err = file0.validate()
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if err:
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return "File #0: %s" % err
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return True
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def createFields(self):
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# File data
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self.signature = None
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self.central_directory = []
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while not self.eof:
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header = textHandler(UInt32(self, "header[]", "Header"), hexadecimal)
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yield header
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header = header.value
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if header == FileEntry.HEADER:
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yield FileEntry(self, "file[]")
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elif header == ZipDataDescriptor.HEADER:
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yield ZipDataDescriptor(self, "spanning[]")
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elif header == 0x30304b50:
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yield ZipDataDescriptor(self, "temporary_spanning[]")
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elif header == ZipCentralDirectory.HEADER:
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yield ZipCentralDirectory(self, "central_directory[]")
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elif header == ZipEndCentralDirectory.HEADER:
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yield ZipEndCentralDirectory(self, "end_central_directory", "End of central directory")
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elif header == Zip64EndCentralDirectory.HEADER:
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yield Zip64EndCentralDirectory(self, "end64_central_directory", "ZIP64 end of central directory")
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elif header == ZipSignature.HEADER:
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yield ZipSignature(self, "signature", "Signature")
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elif header == Zip64EndCentralDirectoryLocator.HEADER:
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yield Zip64EndCentralDirectoryLocator(self, "end_locator", "ZIP64 Enf of central directory locator")
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else:
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raise ParserError("Error, unknown ZIP header (0x%08X)." % header)
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def createMimeType(self):
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if self["file[0]/filename"].value == "mimetype":
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return makeUnicode(self["file[0]/data"].value)
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else:
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return u"application/zip"
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def createFilenameSuffix(self):
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if self["file[0]/filename"].value == "mimetype":
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mime = self["file[0]/compressed_data"].value
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if mime in self.MIME_TYPES:
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return "." + self.MIME_TYPES[mime]
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return ".zip"
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def createContentSize(self):
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start = 0
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end = MAX_FILESIZE * 8
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end = self.stream.searchBytes("PK\5\6", start, end)
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if end is not None:
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return end + 22*8
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return None
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