mirror of
https://github.com/moparisthebest/SickRage
synced 2024-11-11 11:55:03 -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!
231 lines
7.6 KiB
Python
231 lines
7.6 KiB
Python
"""
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Master Boot Record.
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"""
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# cfdisk uses the following algorithm to compute the geometry:
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# 0. Use the values given by the user.
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# 1. Try to guess the geometry from the partition table:
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# if all the used partitions end at the same head H and the
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# same sector S, then there are (H+1) heads and S sectors/cylinder.
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# 2. Ask the system (ioctl/HDIO_GETGEO).
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# 3. 255 heads and 63 sectors/cylinder.
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from lib.hachoir_parser import Parser
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from lib.hachoir_core.field import (FieldSet,
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Enum, Bits, UInt8, UInt16, UInt32,
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RawBytes)
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from lib.hachoir_core.endian import LITTLE_ENDIAN
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from lib.hachoir_core.tools import humanFilesize
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from lib.hachoir_core.text_handler import textHandler, hexadecimal
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BLOCK_SIZE = 512 # bytes
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class CylinderNumber(Bits):
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def __init__(self, parent, name, description=None):
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Bits.__init__(self, parent, name, 10, description)
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def createValue(self):
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i = self.parent.stream.readInteger(
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self.absolute_address, False, self._size, self.parent.endian)
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return i >> 2 | i % 4 << 8
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class PartitionHeader(FieldSet):
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static_size = 16*8
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# taken from the source of cfdisk:
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# sed -n 's/.*{\(.*\), N_(\(.*\))}.*/ \1: \2,/p' i386_sys_types.c
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system_name = {
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0x00: "Empty",
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0x01: "FAT12",
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0x02: "XENIX root",
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0x03: "XENIX usr",
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0x04: "FAT16 <32M",
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0x05: "Extended",
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0x06: "FAT16",
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0x07: "HPFS/NTFS",
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0x08: "AIX",
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0x09: "AIX bootable",
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0x0a: "OS/2 Boot Manager",
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0x0b: "W95 FAT32",
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0x0c: "W95 FAT32 (LBA)",
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0x0e: "W95 FAT16 (LBA)",
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0x0f: "W95 Ext'd (LBA)",
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0x10: "OPUS",
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0x11: "Hidden FAT12",
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0x12: "Compaq diagnostics",
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0x14: "Hidden FAT16 <32M",
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0x16: "Hidden FAT16",
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0x17: "Hidden HPFS/NTFS",
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0x18: "AST SmartSleep",
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0x1b: "Hidden W95 FAT32",
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0x1c: "Hidden W95 FAT32 (LBA)",
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0x1e: "Hidden W95 FAT16 (LBA)",
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0x24: "NEC DOS",
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0x39: "Plan 9",
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0x3c: "PartitionMagic recovery",
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0x40: "Venix 80286",
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0x41: "PPC PReP Boot",
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0x42: "SFS",
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0x4d: "QNX4.x",
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0x4e: "QNX4.x 2nd part",
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0x4f: "QNX4.x 3rd part",
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0x50: "OnTrack DM",
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0x51: "OnTrack DM6 Aux1",
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0x52: "CP/M",
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0x53: "OnTrack DM6 Aux3",
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0x54: "OnTrackDM6",
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0x55: "EZ-Drive",
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0x56: "Golden Bow",
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0x5c: "Priam Edisk",
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0x61: "SpeedStor",
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0x63: "GNU HURD or SysV",
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0x64: "Novell Netware 286",
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0x65: "Novell Netware 386",
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0x70: "DiskSecure Multi-Boot",
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0x75: "PC/IX",
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0x80: "Old Minix",
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0x81: "Minix / old Linux",
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0x82: "Linux swap / Solaris",
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0x83: "Linux (ext2/ext3)",
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0x84: "OS/2 hidden C: drive",
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0x85: "Linux extended",
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0x86: "NTFS volume set",
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0x87: "NTFS volume set",
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0x88: "Linux plaintext",
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0x8e: "Linux LVM",
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0x93: "Amoeba",
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0x94: "Amoeba BBT",
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0x9f: "BSD/OS",
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0xa0: "IBM Thinkpad hibernation",
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0xa5: "FreeBSD",
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0xa6: "OpenBSD",
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0xa7: "NeXTSTEP",
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0xa8: "Darwin UFS",
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0xa9: "NetBSD",
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0xab: "Darwin boot",
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0xb7: "BSDI fs",
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0xb8: "BSDI swap",
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0xbb: "Boot Wizard hidden",
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0xbe: "Solaris boot",
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0xbf: "Solaris",
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0xc1: "DRDOS/sec (FAT-12)",
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0xc4: "DRDOS/sec (FAT-16 < 32M)",
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0xc6: "DRDOS/sec (FAT-16)",
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0xc7: "Syrinx",
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0xda: "Non-FS data",
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0xdb: "CP/M / CTOS / ...",
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0xde: "Dell Utility",
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0xdf: "BootIt",
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0xe1: "DOS access",
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0xe3: "DOS R/O",
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0xe4: "SpeedStor",
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0xeb: "BeOS fs",
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0xee: "EFI GPT",
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0xef: "EFI (FAT-12/16/32)",
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0xf0: "Linux/PA-RISC boot",
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0xf1: "SpeedStor",
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0xf4: "SpeedStor",
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0xf2: "DOS secondary",
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0xfd: "Linux raid autodetect",
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0xfe: "LANstep",
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0xff: "BBT"
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}
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def createFields(self):
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yield UInt8(self, "bootable", "Bootable flag (true if equals to 0x80)")
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if self["bootable"].value not in (0x00, 0x80):
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self.warning("Stream doesn't look like master boot record (partition bootable error)!")
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yield UInt8(self, "start_head", "Starting head number of the partition")
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yield Bits(self, "start_sector", 6, "Starting sector number of the partition")
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yield CylinderNumber(self, "start_cylinder", "Starting cylinder number of the partition")
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yield Enum(UInt8(self, "system", "System indicator"), self.system_name)
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yield UInt8(self, "end_head", "Ending head number of the partition")
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yield Bits(self, "end_sector", 6, "Ending sector number of the partition")
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yield CylinderNumber(self, "end_cylinder", "Ending cylinder number of the partition")
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yield UInt32(self, "LBA", "LBA (number of sectors before this partition)")
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yield UInt32(self, "size", "Size (block count)")
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def isUsed(self):
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return self["system"].value != 0
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def createDescription(self):
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desc = "Partition header: "
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if self.isUsed():
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system = self["system"].display
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size = self["size"].value * BLOCK_SIZE
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desc += "%s, %s" % (system, humanFilesize(size))
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else:
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desc += "(unused)"
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return desc
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class MasterBootRecord(FieldSet):
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static_size = 512*8
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def createFields(self):
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yield RawBytes(self, "program", 446, "Boot program (Intel x86 machine code)")
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yield PartitionHeader(self, "header[0]")
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yield PartitionHeader(self, "header[1]")
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yield PartitionHeader(self, "header[2]")
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yield PartitionHeader(self, "header[3]")
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yield textHandler(UInt16(self, "signature", "Signature (0xAA55)"), hexadecimal)
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def _getPartitions(self):
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return ( self[index] for index in xrange(1,5) )
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headers = property(_getPartitions)
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class Partition(FieldSet):
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def createFields(self):
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mbr = MasterBootRecord(self, "mbr")
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yield mbr
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# No error if we only want to analyse a backup of a mbr
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if self.eof:
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return
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for start, index, header in sorted((hdr["LBA"].value, index, hdr)
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for index, hdr in enumerate(mbr.headers) if hdr.isUsed()):
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# Seek to the beginning of the partition
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padding = self.seekByte(start * BLOCK_SIZE, "padding[]")
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if padding:
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yield padding
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# Content of the partition
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name = "partition[%u]" % index
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size = BLOCK_SIZE * header["size"].value
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desc = header["system"].display
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if header["system"].value == 5:
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yield Partition(self, name, desc, size * 8)
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else:
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yield RawBytes(self, name, size, desc)
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# Padding at the end
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if self.current_size < self._size:
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yield self.seekBit(self._size, "end")
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class MSDos_HardDrive(Parser, Partition):
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endian = LITTLE_ENDIAN
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MAGIC = "\x55\xAA"
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PARSER_TAGS = {
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"id": "msdos_harddrive",
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"category": "file_system",
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"description": "MS-DOS hard drive with Master Boot Record (MBR)",
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"min_size": 512*8,
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"file_ext": ("",),
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# "magic": ((MAGIC, 510*8),),
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}
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def validate(self):
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if self.stream.readBytes(510*8, 2) != self.MAGIC:
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return "Invalid signature"
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used = False
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for hdr in self["mbr"].headers:
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if hdr["bootable"].value not in (0x00, 0x80):
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return "Wrong boot flag"
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used |= hdr.isUsed()
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return used or "No partition found"
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