# -*- coding: utf-8 -*- import binascii import importlib.util import io import itertools import os import posixpath import shutil import stat import struct import sys import threading import time import contextlib import pathlib from modules.kodi_utils import get_visibility try: import zlib crc32 = zlib.crc32 except ImportError: zlib = None crc32 = binascii.crc32 try: import bz2 except ImportError: bz2 = None try: import lzma except ImportError: lzma = None __all__ = ['BadZipFile', 'BadZipfile', 'error', 'ZIP_STORED', 'ZIP_DEFLATED', 'ZIP_BZIP2', 'ZIP_LZMA', 'is_zipfile', 'ZipInfo', 'ZipFile', 'PyZipFile', 'LargeZipFile', 'Path'] class BadZipFile(Exception): pass class LargeZipFile(Exception): pass error = BadZipfile = BadZipFile ZIP64_LIMIT = (1 << 31) - 1 ZIP_FILECOUNT_LIMIT = (1 << 16) - 1 ZIP_MAX_COMMENT = (1 << 16) - 1 ZIP_STORED = 0 ZIP_DEFLATED = 8 ZIP_BZIP2 = 12 ZIP_LZMA = 14 DEFAULT_VERSION = 20 ZIP64_VERSION = 45 BZIP2_VERSION = 46 LZMA_VERSION = 63 MAX_EXTRACT_VERSION = 63 structEndArchive = b"<4s4H2LH" stringEndArchive = b"PK\005\006" sizeEndCentDir = struct.calcsize(structEndArchive) _ECD_SIGNATURE = 0 _ECD_DISK_NUMBER = 1 _ECD_DISK_START = 2 _ECD_ENTRIES_THIS_DISK = 3 _ECD_ENTRIES_TOTAL = 4 _ECD_SIZE = 5 _ECD_OFFSET = 6 _ECD_COMMENT_SIZE = 7 _ECD_COMMENT = 8 _ECD_LOCATION = 9 structCentralDir = "<4s4B4HL2L5H2L" stringCentralDir = b"PK\001\002" sizeCentralDir = struct.calcsize(structCentralDir) _CD_SIGNATURE = 0 _CD_CREATE_VERSION = 1 _CD_CREATE_SYSTEM = 2 _CD_EXTRACT_VERSION = 3 _CD_EXTRACT_SYSTEM = 4 _CD_FLAG_BITS = 5 _CD_COMPRESS_TYPE = 6 _CD_TIME = 7 _CD_DATE = 8 _CD_CRC = 9 _CD_COMPRESSED_SIZE = 10 _CD_UNCOMPRESSED_SIZE = 11 _CD_FILENAME_LENGTH = 12 _CD_EXTRA_FIELD_LENGTH = 13 _CD_COMMENT_LENGTH = 14 _CD_DISK_NUMBER_START = 15 _CD_INTERNAL_FILE_ATTRIBUTES = 16 _CD_EXTERNAL_FILE_ATTRIBUTES = 17 _CD_LOCAL_HEADER_OFFSET = 18 structFileHeader = "<4s2B4HL2L2H" stringFileHeader = b"PK\003\004" sizeFileHeader = struct.calcsize(structFileHeader) _FH_SIGNATURE = 0 _FH_EXTRACT_VERSION = 1 _FH_EXTRACT_SYSTEM = 2 _FH_GENERAL_PURPOSE_FLAG_BITS = 3 _FH_COMPRESSION_METHOD = 4 _FH_LAST_MOD_TIME = 5 _FH_LAST_MOD_DATE = 6 _FH_CRC = 7 _FH_COMPRESSED_SIZE = 8 _FH_UNCOMPRESSED_SIZE = 9 _FH_FILENAME_LENGTH = 10 _FH_EXTRA_FIELD_LENGTH = 11 structEndArchive64Locator = "<4sLQL" stringEndArchive64Locator = b"PK\x06\x07" sizeEndCentDir64Locator = struct.calcsize(structEndArchive64Locator) structEndArchive64 = "<4sQ2H2L4Q" stringEndArchive64 = b"PK\x06\x06" sizeEndCentDir64 = struct.calcsize(structEndArchive64) _CD64_SIGNATURE = 0 _CD64_DIRECTORY_RECSIZE = 1 _CD64_CREATE_VERSION = 2 _CD64_EXTRACT_VERSION = 3 _CD64_DISK_NUMBER = 4 _CD64_DISK_NUMBER_START = 5 _CD64_NUMBER_ENTRIES_THIS_DISK = 6 _CD64_NUMBER_ENTRIES_TOTAL = 7 _CD64_DIRECTORY_SIZE = 8 _CD64_OFFSET_START_CENTDIR = 9 _DD_SIGNATURE = 0x08074b50 _EXTRA_FIELD_STRUCT = struct.Struct(' 1: raise BadZipFile("zipfiles that span multiple disks are not supported") fpin.seek(offset - sizeEndCentDir64Locator - sizeEndCentDir64, 2) data = fpin.read(sizeEndCentDir64) if len(data) != sizeEndCentDir64: return endrec sig, sz, create_version, read_version, disk_num, disk_dir, \ dircount, dircount2, dirsize, diroffset = \ struct.unpack(structEndArchive64, data) if sig != stringEndArchive64: return endrec endrec[_ECD_SIGNATURE] = sig endrec[_ECD_DISK_NUMBER] = disk_num endrec[_ECD_DISK_START] = disk_dir endrec[_ECD_ENTRIES_THIS_DISK] = dircount endrec[_ECD_ENTRIES_TOTAL] = dircount2 endrec[_ECD_SIZE] = dirsize endrec[_ECD_OFFSET] = diroffset return endrec def _EndRecData(fpin): fpin.seek(0, 2) filesize = fpin.tell() try: fpin.seek(-sizeEndCentDir, 2) except OSError: return None data = fpin.read() if (len(data) == sizeEndCentDir and data[0:4] == stringEndArchive and data[-2:] == b"\000\000"): endrec = struct.unpack(structEndArchive, data) endrec=list(endrec) endrec.append(b"") endrec.append(filesize - sizeEndCentDir) return _EndRecData64(fpin, -sizeEndCentDir, endrec) maxCommentStart = max(filesize - (1 << 16) - sizeEndCentDir, 0) fpin.seek(maxCommentStart, 0) data = fpin.read() start = data.rfind(stringEndArchive) if start >= 0: recData = data[start:start+sizeEndCentDir] if len(recData) != sizeEndCentDir: return None endrec = list(struct.unpack(structEndArchive, recData)) commentSize = endrec[_ECD_COMMENT_SIZE] #as claimed by the zip file comment = data[start+sizeEndCentDir:start+sizeEndCentDir+commentSize] endrec.append(comment) endrec.append(maxCommentStart + start) return _EndRecData64(fpin, maxCommentStart + start - filesize, endrec) return None class ZipInfo (object): __slots__ = ( 'orig_filename', 'filename', 'date_time', 'compress_type', '_compresslevel', 'comment', 'extra', 'create_system', 'create_version', 'extract_version', 'reserved', 'flag_bits', 'volume', 'internal_attr', 'external_attr', 'header_offset', 'CRC', 'compress_size', 'file_size', '_raw_time', ) def __init__(self, filename="NoName", date_time=(1980,1,1,0,0,0)): self.orig_filename = filename null_byte = filename.find(chr(0)) if null_byte >= 0: filename = filename[0:null_byte] if os.sep != "/" and os.sep in filename: filename = filename.replace(os.sep, "/") self.filename = filename self.date_time = date_time if date_time[0] < 1980: raise ValueError('ZIP does not support timestamps before 1980') self.compress_type = ZIP_STORED self._compresslevel = None self.comment = b"" self.extra = b"" if sys.platform == 'win32': self.create_system = 0 else: self.create_system = 3 self.create_version = DEFAULT_VERSION self.extract_version = DEFAULT_VERSION self.reserved = 0 self.flag_bits = 0 self.volume = 0 self.internal_attr = 0 self.external_attr = 0 self.compress_size = 0 self.file_size = 0 def __repr__(self): result = ['<%s filename=%r' % (self.__class__.__name__, self.filename)] if self.compress_type != ZIP_STORED: result.append(' compress_type=%s' % compressor_names.get(self.compress_type, self.compress_type)) hi = self.external_attr >> 16 lo = self.external_attr & 0xFFFF if hi: result.append(' filemode=%r' % stat.filemode(hi)) if lo: result.append(' external_attr=%#x' % lo) isdir = self.is_dir() if not isdir or self.file_size: result.append(' file_size=%r' % self.file_size) if ((not isdir or self.compress_size) and (self.compress_type != ZIP_STORED or self.file_size != self.compress_size)): result.append(' compress_size=%r' % self.compress_size) result.append('>') return ''.join(result) def FileHeader(self, zip64=None): dt = self.date_time dosdate = (dt[0] - 1980) << 9 | dt[1] << 5 | dt[2] dostime = dt[3] << 11 | dt[4] << 5 | (dt[5] // 2) if self.flag_bits & 0x08: CRC = compress_size = file_size = 0 else: CRC = self.CRC compress_size = self.compress_size file_size = self.file_size extra = self.extra min_version = 0 if zip64 is None: zip64 = file_size > ZIP64_LIMIT or compress_size > ZIP64_LIMIT if zip64: fmt = ' ZIP64_LIMIT or compress_size > ZIP64_LIMIT: if not zip64: raise LargeZipFile("Filesize would require ZIP64 extensions") file_size = 0xffffffff compress_size = 0xffffffff min_version = ZIP64_VERSION if self.compress_type == ZIP_BZIP2: min_version = max(BZIP2_VERSION, min_version) elif self.compress_type == ZIP_LZMA: min_version = max(LZMA_VERSION, min_version) self.extract_version = max(min_version, self.extract_version) self.create_version = max(min_version, self.create_version) filename, flag_bits = self._encodeFilenameFlags() header = struct.pack(structFileHeader, stringFileHeader, self.extract_version, self.reserved, flag_bits, self.compress_type, dostime, dosdate, CRC, compress_size, file_size, len(filename), len(extra)) return header + filename + extra def _encodeFilenameFlags(self): try: return self.filename.encode('ascii'), self.flag_bits except UnicodeEncodeError: return self.filename.encode('utf-8'), self.flag_bits | 0x800 def _decodeExtra(self): extra = self.extra unpack = struct.unpack while len(extra) >= 4: tp, ln = unpack(' len(extra): raise BadZipFile("Corrupt extra field %04x (size=%d)" % (tp, ln)) if tp == 0x0001: data = extra[4:ln+4] try: if self.file_size in (0xFFFF_FFFF_FFFF_FFFF, 0xFFFF_FFFF): field = "File size" self.file_size, = unpack(' 2107: date_time = (2107, 12, 31, 23, 59, 59) if arcname is None: arcname = filename arcname = os.path.normpath(os.path.splitdrive(arcname)[1]) while arcname[0] in (os.sep, os.altsep): arcname = arcname[1:] if isdir: arcname += '/' zinfo = cls(arcname, date_time) zinfo.external_attr = (st.st_mode & 0xFFFF) << 16 if isdir: zinfo.file_size = 0 zinfo.external_attr |= 0x10 else: zinfo.file_size = st.st_size return zinfo def is_dir(self): return self.filename[-1] == '/' _crctable = None def _gen_crc(crc): for j in range(8): if crc & 1: crc = (crc >> 1) ^ 0xEDB88320 else: crc >>= 1 return crc def _ZipDecrypter(pwd): key0 = 305419896 key1 = 591751049 key2 = 878082192 global _crctable if _crctable is None: _crctable = list(map(_gen_crc, range(256))) crctable = _crctable def crc32(ch, crc): return (crc >> 8) ^ crctable[(crc ^ ch) & 0xFF] def update_keys(c): nonlocal key0, key1, key2 key0 = crc32(c, key0) key1 = (key1 + (key0 & 0xFF)) & 0xFFFFFFFF key1 = (key1 * 134775813 + 1) & 0xFFFFFFFF key2 = crc32(key1 >> 24, key2) for p in pwd: update_keys(p) def decrypter(data): result = bytearray() append = result.append for c in data: k = key2 | 2 c ^= ((k * (k^1)) >> 8) & 0xFF update_keys(c) append(c) return bytes(result) return decrypter class LZMACompressor: def __init__(self): self._comp = None def _init(self): props = lzma._encode_filter_properties({'id': lzma.FILTER_LZMA1}) self._comp = lzma.LZMACompressor(lzma.FORMAT_RAW, filters=[ lzma._decode_filter_properties(lzma.FILTER_LZMA1, props) ]) return struct.pack('> 8) & 0xff else: check_byte = (zipinfo.CRC >> 24) & 0xff h = self._init_decrypter() if h != check_byte: raise RuntimeError("Bad password for file %r" % zipinfo.orig_filename) def _init_decrypter(self): self._decrypter = _ZipDecrypter(self._pwd) header = self._fileobj.read(12) self._compress_left -= 12 return self._decrypter(header)[11] def __repr__(self): result = ['<%s.%s' % (self.__class__.__module__, self.__class__.__qualname__)] if not self.closed: result.append(' name=%r mode=%r' % (self.name, self.mode)) if self._compress_type != ZIP_STORED: result.append(' compress_type=%s' % compressor_names.get(self._compress_type, self._compress_type)) else: result.append(' [closed]') result.append('>') return ''.join(result) def readline(self, limit=-1): if limit < 0: i = self._readbuffer.find(b'\n', self._offset) + 1 if i > 0: line = self._readbuffer[self._offset: i] self._offset = i return line return io.BufferedIOBase.readline(self, limit) def peek(self, n=1): if n > len(self._readbuffer) - self._offset: chunk = self.read(n) if len(chunk) > self._offset: self._readbuffer = chunk + self._readbuffer[self._offset:] self._offset = 0 else: self._offset -= len(chunk) return self._readbuffer[self._offset: self._offset + 512] def readable(self): if self.closed: raise ValueError("I/O operation on closed file.") return True def read(self, n=-1): if self.closed: raise ValueError("read from closed file.") if n is None or n < 0: buf = self._readbuffer[self._offset:] self._readbuffer = b'' self._offset = 0 while not self._eof: buf += self._read1(self.MAX_N) return buf end = n + self._offset if end < len(self._readbuffer): buf = self._readbuffer[self._offset:end] self._offset = end return buf n = end - len(self._readbuffer) buf = self._readbuffer[self._offset:] self._readbuffer = b'' self._offset = 0 while n > 0 and not self._eof: data = self._read1(n) if n < len(data): self._readbuffer = data self._offset = n buf += data[:n] break buf += data n -= len(data) return buf def _update_crc(self, newdata): if self._expected_crc is None: return self._running_crc = crc32(newdata, self._running_crc) if self._eof and self._running_crc != self._expected_crc: raise BadZipFile("Bad CRC-32 for file %r" % self.name) def read1(self, n): if n is None or n < 0: buf = self._readbuffer[self._offset:] self._readbuffer = b'' self._offset = 0 while not self._eof: data = self._read1(self.MAX_N) if data: buf += data break return buf end = n + self._offset if end < len(self._readbuffer): buf = self._readbuffer[self._offset:end] self._offset = end return buf n = end - len(self._readbuffer) buf = self._readbuffer[self._offset:] self._readbuffer = b'' self._offset = 0 if n > 0: while not self._eof: data = self._read1(n) if n < len(data): self._readbuffer = data self._offset = n buf += data[:n] break if data: buf += data break return buf def _read1(self, n): if self._eof or n <= 0: return b'' if self._compress_type == ZIP_DEFLATED: data = self._decompressor.unconsumed_tail if n > len(data): data += self._read2(n - len(data)) else: data = self._read2(n) if self._compress_type == ZIP_STORED: self._eof = self._compress_left <= 0 elif self._compress_type == ZIP_DEFLATED: n = max(n, self.MIN_READ_SIZE) data = self._decompressor.decompress(data, n) self._eof = (self._decompressor.eof or self._compress_left <= 0 and not self._decompressor.unconsumed_tail) if self._eof: data += self._decompressor.flush() else: data = self._decompressor.decompress(data) self._eof = self._decompressor.eof or self._compress_left <= 0 data = data[:self._left] self._left -= len(data) if self._left <= 0: self._eof = True self._update_crc(data) return data def _read2(self, n): if self._compress_left <= 0: return b'' n = max(n, self.MIN_READ_SIZE) n = min(n, self._compress_left) data = self._fileobj.read(n) self._compress_left -= len(data) if not data: raise EOFError if self._decrypter is not None: data = self._decrypter(data) return data def close(self): try: if self._close_fileobj: self._fileobj.close() finally: super().close() def seekable(self): if self.closed: raise ValueError("I/O operation on closed file.") return self._seekable def seek(self, offset, whence=0): if self.closed: raise ValueError("seek on closed file.") if not self._seekable: raise io.UnsupportedOperation("underlying stream is not seekable") curr_pos = self.tell() if whence == 0: new_pos = offset elif whence == 1: new_pos = curr_pos + offset elif whence == 2: new_pos = self._orig_file_size + offset else: raise ValueError("whence must be os.SEEK_SET (0), " "os.SEEK_CUR (1), or os.SEEK_END (2)") if new_pos > self._orig_file_size: new_pos = self._orig_file_size if new_pos < 0: new_pos = 0 read_offset = new_pos - curr_pos buff_offset = read_offset + self._offset if buff_offset >= 0 and buff_offset < len(self._readbuffer): self._offset = buff_offset read_offset = 0 elif read_offset < 0: self._fileobj.seek(self._orig_compress_start) self._running_crc = self._orig_start_crc self._compress_left = self._orig_compress_size self._left = self._orig_file_size self._readbuffer = b'' self._offset = 0 self._decompressor = _get_decompressor(self._compress_type) self._eof = False read_offset = new_pos if self._decrypter is not None: self._init_decrypter() while read_offset > 0: read_len = min(self.MAX_SEEK_READ, read_offset) self.read(read_len) read_offset -= read_len return self.tell() def tell(self): if self.closed: raise ValueError("tell on closed file.") if not self._seekable: raise io.UnsupportedOperation("underlying stream is not seekable") filepos = self._orig_file_size - self._left - len(self._readbuffer) + self._offset return filepos class _ZipWriteFile(io.BufferedIOBase): def __init__(self, zf, zinfo, zip64): self._zinfo = zinfo self._zip64 = zip64 self._zipfile = zf self._compressor = _get_compressor(zinfo.compress_type, zinfo._compresslevel) self._file_size = 0 self._compress_size = 0 self._crc = 0 @property def _fileobj(self): return self._zipfile.fp def writable(self): return True def write(self, data): if self.closed: raise ValueError('I/O operation on closed file.') nbytes = len(data) self._file_size += nbytes self._crc = crc32(data, self._crc) if self._compressor: data = self._compressor.compress(data) self._compress_size += len(data) self._fileobj.write(data) return nbytes def close(self): if self.closed: return try: super().close() if self._compressor: buf = self._compressor.flush() self._compress_size += len(buf) self._fileobj.write(buf) self._zinfo.compress_size = self._compress_size else: self._zinfo.compress_size = self._file_size self._zinfo.CRC = self._crc self._zinfo.file_size = self._file_size if self._zinfo.flag_bits & 0x08: fmt = ' ZIP64_LIMIT: raise RuntimeError( 'File size unexpectedly exceeded ZIP64 limit') if self._compress_size > ZIP64_LIMIT: raise RuntimeError( 'Compressed size unexpectedly exceeded ZIP64 limit') self._zipfile.start_dir = self._fileobj.tell() self._fileobj.seek(self._zinfo.header_offset) self._fileobj.write(self._zinfo.FileHeader(self._zip64)) self._fileobj.seek(self._zipfile.start_dir) self._zipfile.filelist.append(self._zinfo) self._zipfile.NameToInfo[self._zinfo.filename] = self._zinfo finally: self._zipfile._writing = False def platform(): if get_visibility('system.platform.android'): return 'android' elif get_visibility('system.platform.linux'): return 'linux' elif get_visibility('system.platform.linux.Raspberrypi'): return 'linux' elif get_visibility('system.platform.windows'): return 'windows' elif get_visibility('system.platform.osx'): return 'osx' elif get_visibility('system.platform.atv2'): return 'atv2' elif get_visibility('system.platform.ios'): return 'ios' elif get_visibility('system.platform.darwin'): return 'ios' class ZipFile: fp = None _windows_illegal_name_trans_table = None def __init__(self, file, mode="r", compression=ZIP_STORED, allowZip64=True, compresslevel=None, *, strict_timestamps=True): if mode not in ('r', 'w', 'x', 'a'): raise ValueError("ZipFile requires mode 'r', 'w', 'x', or 'a'") _check_compression(compression) self._allowZip64 = allowZip64 self._didModify = False self.debug = 0 self.NameToInfo = {} self.filelist = [] self.compression = compression self.compresslevel = compresslevel self.mode = mode self.pwd = None self._comment = b'' self._strict_timestamps = strict_timestamps if platform() == 'android': try: file = io.FileIO(file, mode) except: pass if isinstance(file, os.PathLike): file = os.fspath(file) if isinstance(file, str): self._filePassed = 0 self.filename = file modeDict = {'r' : 'rb', 'w': 'w+b', 'x': 'x+b', 'a' : 'r+b', 'r+b': 'w+b', 'w+b': 'wb', 'x+b': 'xb'} filemode = modeDict[mode] while True: try: self.fp = io.open(file, filemode) except OSError: if filemode in modeDict: filemode = modeDict[filemode] continue raise break else: self._filePassed = 1 self.fp = file self.filename = getattr(file, 'name', None) self._fileRefCnt = 1 self._lock = threading.RLock() self._seekable = True self._writing = False try: if mode == 'r': self._RealGetContents() elif mode in ('w', 'x'): self._didModify = True try: self.start_dir = self.fp.tell() except (AttributeError, OSError): self.fp = _Tellable(self.fp) self.start_dir = 0 self._seekable = False else: try: self.fp.seek(self.start_dir) except (AttributeError, OSError): self._seekable = False elif mode == 'a': try: self._RealGetContents() self.fp.seek(self.start_dir) except BadZipFile: self.fp.seek(0, 2) self._didModify = True self.start_dir = self.fp.tell() else: raise ValueError("Mode must be 'r', 'w', 'x', or 'a'") except: fp = self.fp self.fp = None self._fpclose(fp) raise def __enter__(self): return self def __exit__(self, type, value, traceback): self.close() def __repr__(self): result = ['<%s.%s' % (self.__class__.__module__, self.__class__.__qualname__)] if self.fp is not None: if self._filePassed: result.append(' file=%r' % self.fp) elif self.filename is not None: result.append(' filename=%r' % self.filename) result.append(' mode=%r' % self.mode) else: result.append(' [closed]') result.append('>') return ''.join(result) def _RealGetContents(self): fp = self.fp try: endrec = _EndRecData(fp) except OSError: raise BadZipFile("File is not a zip file") if not endrec: raise BadZipFile("File is not a zip file") if self.debug > 1: print(endrec) size_cd = endrec[_ECD_SIZE] offset_cd = endrec[_ECD_OFFSET] self._comment = endrec[_ECD_COMMENT] concat = endrec[_ECD_LOCATION] - size_cd - offset_cd if endrec[_ECD_SIGNATURE] == stringEndArchive64: concat -= (sizeEndCentDir64 + sizeEndCentDir64Locator) if self.debug > 2: inferred = concat + offset_cd print("given, inferred, offset", offset_cd, inferred, concat) self.start_dir = offset_cd + concat fp.seek(self.start_dir, 0) data = fp.read(size_cd) fp = io.BytesIO(data) total = 0 while total < size_cd: centdir = fp.read(sizeCentralDir) if len(centdir) != sizeCentralDir: raise BadZipFile("Truncated central directory") centdir = struct.unpack(structCentralDir, centdir) if centdir[_CD_SIGNATURE] != stringCentralDir: raise BadZipFile("Bad magic number for central directory") if self.debug > 2: print(centdir) filename = fp.read(centdir[_CD_FILENAME_LENGTH]) flags = centdir[5] if flags & 0x800: filename = filename.decode('utf-8') else: filename = filename.decode('cp437') x = ZipInfo(filename) x.extra = fp.read(centdir[_CD_EXTRA_FIELD_LENGTH]) x.comment = fp.read(centdir[_CD_COMMENT_LENGTH]) x.header_offset = centdir[_CD_LOCAL_HEADER_OFFSET] (x.create_version, x.create_system, x.extract_version, x.reserved, x.flag_bits, x.compress_type, t, d, x.CRC, x.compress_size, x.file_size) = centdir[1:12] if x.extract_version > MAX_EXTRACT_VERSION: raise NotImplementedError("zip file version %.1f" % (x.extract_version / 10)) x.volume, x.internal_attr, x.external_attr = centdir[15:18] x._raw_time = t x.date_time = ( (d>>9)+1980, (d>>5)&0xF, d&0x1F, t>>11, (t>>5)&0x3F, (t&0x1F) * 2 ) x._decodeExtra() x.header_offset = x.header_offset + concat self.filelist.append(x) self.NameToInfo[x.filename] = x total = (total + sizeCentralDir + centdir[_CD_FILENAME_LENGTH] + centdir[_CD_EXTRA_FIELD_LENGTH] + centdir[_CD_COMMENT_LENGTH]) if self.debug > 2: print("total", total) def namelist(self): return [data.filename for data in self.filelist] def infolist(self): return self.filelist def printdir(self, file=None): print("%-46s %19s %12s" % ("File Name", "Modified ", "Size"), file=file) for zinfo in self.filelist: date = "%d-%02d-%02d %02d:%02d:%02d" % zinfo.date_time[:6] print("%-46s %s %12d" % (zinfo.filename, date, zinfo.file_size), file=file) def testzip(self): chunk_size = 2 ** 20 for zinfo in self.filelist: try: with self.open(zinfo.filename, "r") as f: while f.read(chunk_size): pass except BadZipFile: return zinfo.filename def getinfo(self, name): info = self.NameToInfo.get(name) if info is None: raise KeyError( 'There is no item named %r in the archive' % name) return info def setpassword(self, pwd): if pwd and not isinstance(pwd, bytes): raise TypeError("pwd: expected bytes, got %s" % type(pwd).__name__) if pwd: self.pwd = pwd else: self.pwd = None @property def comment(self): return self._comment @comment.setter def comment(self, comment): if not isinstance(comment, bytes): raise TypeError("comment: expected bytes, got %s" % type(comment).__name__) if len(comment) > ZIP_MAX_COMMENT: import warnings warnings.warn('Archive comment is too long; truncating to %d bytes' % ZIP_MAX_COMMENT, stacklevel=2) comment = comment[:ZIP_MAX_COMMENT] self._comment = comment self._didModify = True def read(self, name, pwd=None): with self.open(name, "r", pwd) as fp: return fp.read() def open(self, name, mode="r", pwd=None, *, force_zip64=False): if mode not in {"r", "w"}: raise ValueError('open() requires mode "r" or "w"') if pwd and not isinstance(pwd, bytes): raise TypeError("pwd: expected bytes, got %s" % type(pwd).__name__) if pwd and (mode == "w"): raise ValueError("pwd is only supported for reading files") if not self.fp: raise ValueError( "Attempt to use ZIP archive that was already closed") if isinstance(name, ZipInfo): zinfo = name elif mode == 'w': zinfo = ZipInfo(name) zinfo.compress_type = self.compression zinfo._compresslevel = self.compresslevel else: zinfo = self.getinfo(name) if mode == 'w': return self._open_to_write(zinfo, force_zip64=force_zip64) if self._writing: raise ValueError("Can't read from the ZIP file while there " "is an open writing handle on it. " "Close the writing handle before trying to read.") self._fileRefCnt += 1 zef_file = _SharedFile(self.fp, zinfo.header_offset, self._fpclose, self._lock, lambda: self._writing) try: fheader = zef_file.read(sizeFileHeader) if len(fheader) != sizeFileHeader: raise BadZipFile("Truncated file header") fheader = struct.unpack(structFileHeader, fheader) if fheader[_FH_SIGNATURE] != stringFileHeader: raise BadZipFile("Bad magic number for file header") fname = zef_file.read(fheader[_FH_FILENAME_LENGTH]) if fheader[_FH_EXTRA_FIELD_LENGTH]: zef_file.read(fheader[_FH_EXTRA_FIELD_LENGTH]) if zinfo.flag_bits & 0x20: raise NotImplementedError("compressed patched data (flag bit 5)") if zinfo.flag_bits & 0x40: raise NotImplementedError("strong encryption (flag bit 6)") if fheader[_FH_GENERAL_PURPOSE_FLAG_BITS] & 0x800: fname_str = fname.decode("utf-8") else: fname_str = fname.decode("cp437") if fname_str != zinfo.orig_filename: raise BadZipFile( 'File name in directory %r and header %r differ.' % (zinfo.orig_filename, fname)) is_encrypted = zinfo.flag_bits & 0x1 if is_encrypted: if not pwd: pwd = self.pwd if not pwd: raise RuntimeError("File %r is encrypted, password " "required for extraction" % name) else: pwd = None return ZipExtFile(zef_file, mode, zinfo, pwd, True) except: zef_file.close() raise def _open_to_write(self, zinfo, force_zip64=False): if force_zip64 and not self._allowZip64: raise ValueError( "force_zip64 is True, but allowZip64 was False when opening " "the ZIP file." ) if self._writing: raise ValueError("Can't write to the ZIP file while there is " "another write handle open on it. " "Close the first handle before opening another.") zinfo.compress_size = 0 zinfo.CRC = 0 zinfo.flag_bits = 0x00 if zinfo.compress_type == ZIP_LZMA: zinfo.flag_bits |= 0x02 if not self._seekable: zinfo.flag_bits |= 0x08 if not zinfo.external_attr: zinfo.external_attr = 0o600 << 16 zip64 = self._allowZip64 and \ (force_zip64 or zinfo.file_size * 1.05 > ZIP64_LIMIT) if self._seekable: self.fp.seek(self.start_dir) zinfo.header_offset = self.fp.tell() self._writecheck(zinfo) self._didModify = True self.fp.write(zinfo.FileHeader(zip64)) self._writing = True return _ZipWriteFile(self, zinfo, zip64) def extract(self, member, path=None, pwd=None): if path is None: path = os.getcwd() else: path = os.fspath(path) return self._extract_member(member, path, pwd) def extractall(self, path=None, members=None, pwd=None): if members is None: members = self.namelist() if path is None: path = os.getcwd() else: path = os.fspath(path) for zipinfo in members: self._extract_member(zipinfo, path, pwd) @classmethod def _sanitize_windows_name(cls, arcname, pathsep): table = cls._windows_illegal_name_trans_table if not table: illegal = ':<>|"?*' table = str.maketrans(illegal, '_' * len(illegal)) cls._windows_illegal_name_trans_table = table arcname = arcname.translate(table) arcname = (x.rstrip('.') for x in arcname.split(pathsep)) arcname = pathsep.join(x for x in arcname if x) return arcname def _extract_member(self, member, targetpath, pwd): if not isinstance(member, ZipInfo): member = self.getinfo(member) arcname = member.filename.replace('/', os.path.sep) if os.path.altsep: arcname = arcname.replace(os.path.altsep, os.path.sep) arcname = os.path.splitdrive(arcname)[1] invalid_path_parts = ('', os.path.curdir, os.path.pardir) arcname = os.path.sep.join(x for x in arcname.split(os.path.sep) if x not in invalid_path_parts) if os.path.sep == '\\': arcname = self._sanitize_windows_name(arcname, os.path.sep) targetpath = os.path.join(targetpath, arcname) targetpath = os.path.normpath(targetpath) upperdirs = os.path.dirname(targetpath) if upperdirs and not os.path.exists(upperdirs): os.makedirs(upperdirs) if member.is_dir(): if not os.path.isdir(targetpath): os.mkdir(targetpath) return targetpath with self.open(member, pwd=pwd) as source, \ open(targetpath, "wb") as target: shutil.copyfileobj(source, target) return targetpath def _writecheck(self, zinfo): if zinfo.filename in self.NameToInfo: import warnings warnings.warn('Duplicate name: %r' % zinfo.filename, stacklevel=3) if self.mode not in ('w', 'x', 'a'): raise ValueError("write() requires mode 'w', 'x', or 'a'") if not self.fp: raise ValueError( "Attempt to write ZIP archive that was already closed") _check_compression(zinfo.compress_type) if not self._allowZip64: requires_zip64 = None if len(self.filelist) >= ZIP_FILECOUNT_LIMIT: requires_zip64 = "Files count" elif zinfo.file_size > ZIP64_LIMIT: requires_zip64 = "Filesize" elif zinfo.header_offset > ZIP64_LIMIT: requires_zip64 = "Zipfile size" if requires_zip64: raise LargeZipFile(requires_zip64 + " would require ZIP64 extensions") def write(self, filename, arcname=None, compress_type=None, compresslevel=None): if not self.fp: raise ValueError( "Attempt to write to ZIP archive that was already closed") if self._writing: raise ValueError( "Can't write to ZIP archive while an open writing handle exists" ) zinfo = ZipInfo.from_file(filename, arcname, strict_timestamps=self._strict_timestamps) if zinfo.is_dir(): zinfo.compress_size = 0 zinfo.CRC = 0 else: if compress_type is not None: zinfo.compress_type = compress_type else: zinfo.compress_type = self.compression if compresslevel is not None: zinfo._compresslevel = compresslevel else: zinfo._compresslevel = self.compresslevel if zinfo.is_dir(): with self._lock: if self._seekable: self.fp.seek(self.start_dir) zinfo.header_offset = self.fp.tell() if zinfo.compress_type == ZIP_LZMA: zinfo.flag_bits |= 0x02 self._writecheck(zinfo) self._didModify = True self.filelist.append(zinfo) self.NameToInfo[zinfo.filename] = zinfo self.fp.write(zinfo.FileHeader(False)) self.start_dir = self.fp.tell() else: with open(filename, "rb") as src, self.open(zinfo, 'w') as dest: shutil.copyfileobj(src, dest, 1024*8) def writestr(self, zinfo_or_arcname, data, compress_type=None, compresslevel=None): if isinstance(data, str): data = data.encode("utf-8") if not isinstance(zinfo_or_arcname, ZipInfo): zinfo = ZipInfo(filename=zinfo_or_arcname, date_time=time.localtime(time.time())[:6]) zinfo.compress_type = self.compression zinfo._compresslevel = self.compresslevel if zinfo.filename[-1] == '/': zinfo.external_attr = 0o40775 << 16 zinfo.external_attr |= 0x10 else: zinfo.external_attr = 0o600 << 16 else: zinfo = zinfo_or_arcname if not self.fp: raise ValueError( "Attempt to write to ZIP archive that was already closed") if self._writing: raise ValueError( "Can't write to ZIP archive while an open writing handle exists." ) if compress_type is not None: zinfo.compress_type = compress_type if compresslevel is not None: zinfo._compresslevel = compresslevel zinfo.file_size = len(data) with self._lock: with self.open(zinfo, mode='w') as dest: dest.write(data) def __del__(self): self.close() def close(self): if self.fp is None: return if self._writing: raise ValueError("Can't close the ZIP file while there is " "an open writing handle on it. " "Close the writing handle before closing the zip.") try: if self.mode in ('w', 'x', 'a') and self._didModify: with self._lock: if self._seekable: self.fp.seek(self.start_dir) self._write_end_record() finally: fp = self.fp self.fp = None self._fpclose(fp) def _write_end_record(self): for zinfo in self.filelist: dt = zinfo.date_time dosdate = (dt[0] - 1980) << 9 | dt[1] << 5 | dt[2] dostime = dt[3] << 11 | dt[4] << 5 | (dt[5] // 2) extra = [] if zinfo.file_size > ZIP64_LIMIT \ or zinfo.compress_size > ZIP64_LIMIT: extra.append(zinfo.file_size) extra.append(zinfo.compress_size) file_size = 0xffffffff compress_size = 0xffffffff else: file_size = zinfo.file_size compress_size = zinfo.compress_size if zinfo.header_offset > ZIP64_LIMIT: extra.append(zinfo.header_offset) header_offset = 0xffffffff else: header_offset = zinfo.header_offset extra_data = zinfo.extra min_version = 0 if extra: extra_data = _strip_extra(extra_data, (1,)) extra_data = struct.pack( ' ZIP_FILECOUNT_LIMIT: requires_zip64 = "Files count" elif centDirOffset > ZIP64_LIMIT: requires_zip64 = "Central directory offset" elif centDirSize > ZIP64_LIMIT: requires_zip64 = "Central directory size" if requires_zip64: if not self._allowZip64: raise LargeZipFile(requires_zip64 + " would require ZIP64 extensions") zip64endrec = struct.pack( structEndArchive64, stringEndArchive64, 44, 45, 45, 0, 0, centDirCount, centDirCount, centDirSize, centDirOffset) self.fp.write(zip64endrec) zip64locrec = struct.pack( structEndArchive64Locator, stringEndArchive64Locator, 0, pos2, 1) self.fp.write(zip64locrec) centDirCount = min(centDirCount, 0xFFFF) centDirSize = min(centDirSize, 0xFFFFFFFF) centDirOffset = min(centDirOffset, 0xFFFFFFFF) endrec = struct.pack(structEndArchive, stringEndArchive, 0, 0, centDirCount, centDirCount, centDirSize, centDirOffset, len(self._comment)) self.fp.write(endrec) self.fp.write(self._comment) if self.mode == "a": self.fp.truncate() self.fp.flush() def _fpclose(self, fp): assert self._fileRefCnt > 0 self._fileRefCnt -= 1 if not self._fileRefCnt and not self._filePassed: fp.close() class PyZipFile(ZipFile): def __init__(self, file, mode="r", compression=ZIP_STORED, allowZip64=True, optimize=-1): ZipFile.__init__(self, file, mode=mode, compression=compression, allowZip64=allowZip64) self._optimize = optimize def writepy(self, pathname, basename="", filterfunc=None): pathname = os.fspath(pathname) if filterfunc and not filterfunc(pathname): if self.debug: label = 'path' if os.path.isdir(pathname) else 'file' print('%s %r skipped by filterfunc' % (label, pathname)) return dir, name = os.path.split(pathname) if os.path.isdir(pathname): initname = os.path.join(pathname, "__init__.py") if os.path.isfile(initname): if basename: basename = "%s/%s" % (basename, name) else: basename = name if self.debug: print("Adding package in", pathname, "as", basename) fname, arcname = self._get_codename(initname[0:-3], basename) if self.debug: print("Adding", arcname) self.write(fname, arcname) dirlist = sorted(os.listdir(pathname)) dirlist.remove("__init__.py") for filename in dirlist: path = os.path.join(pathname, filename) root, ext = os.path.splitext(filename) if os.path.isdir(path): if os.path.isfile(os.path.join(path, "__init__.py")): self.writepy(path, basename, filterfunc=filterfunc) elif ext == ".py": if filterfunc and not filterfunc(path): if self.debug: print('file %r skipped by filterfunc' % path) continue fname, arcname = self._get_codename(path[0:-3], basename) if self.debug: print("Adding", arcname) self.write(fname, arcname) else: if self.debug: print("Adding files from directory", pathname) for filename in sorted(os.listdir(pathname)): path = os.path.join(pathname, filename) root, ext = os.path.splitext(filename) if ext == ".py": if filterfunc and not filterfunc(path): if self.debug: print('file %r skipped by filterfunc' % path) continue fname, arcname = self._get_codename(path[0:-3], basename) if self.debug: print("Adding", arcname) self.write(fname, arcname) else: if pathname[-3:] != ".py": raise RuntimeError( 'Files added with writepy() must end with ".py"') fname, arcname = self._get_codename(pathname[0:-3], basename) if self.debug: print("Adding file", arcname) self.write(fname, arcname) def _get_codename(self, pathname, basename): def _compile(file, optimize=-1): import py_compile if self.debug: print("Compiling", file) try: py_compile.compile(file, doraise=True, optimize=optimize) except py_compile.PyCompileError as err: print(err.msg) return False return True file_py = pathname + ".py" file_pyc = pathname + ".pyc" pycache_opt0 = importlib.util.cache_from_source(file_py, optimization='') pycache_opt1 = importlib.util.cache_from_source(file_py, optimization=1) pycache_opt2 = importlib.util.cache_from_source(file_py, optimization=2) if self._optimize == -1: if (os.path.isfile(file_pyc) and os.stat(file_pyc).st_mtime >= os.stat(file_py).st_mtime): arcname = fname = file_pyc elif (os.path.isfile(pycache_opt0) and os.stat(pycache_opt0).st_mtime >= os.stat(file_py).st_mtime): fname = pycache_opt0 arcname = file_pyc elif (os.path.isfile(pycache_opt1) and os.stat(pycache_opt1).st_mtime >= os.stat(file_py).st_mtime): fname = pycache_opt1 arcname = file_pyc elif (os.path.isfile(pycache_opt2) and os.stat(pycache_opt2).st_mtime >= os.stat(file_py).st_mtime): fname = pycache_opt2 arcname = file_pyc else: if _compile(file_py): if sys.flags.optimize == 0: fname = pycache_opt0 elif sys.flags.optimize == 1: fname = pycache_opt1 else: fname = pycache_opt2 arcname = file_pyc else: fname = arcname = file_py else: if self._optimize == 0: fname = pycache_opt0 arcname = file_pyc else: arcname = file_pyc if self._optimize == 1: fname = pycache_opt1 elif self._optimize == 2: fname = pycache_opt2 else: msg = "invalid value for 'optimize': {!r}".format(self._optimize) raise ValueError(msg) if not (os.path.isfile(fname) and os.stat(fname).st_mtime >= os.stat(file_py).st_mtime): if not _compile(file_py, optimize=self._optimize): fname = arcname = file_py archivename = os.path.split(arcname)[1] if basename: archivename = "%s/%s" % (basename, archivename) return (fname, archivename) def _parents(path): return itertools.islice(_ancestry(path), 1, None) def _ancestry(path): path = path.rstrip(posixpath.sep) while path and path != posixpath.sep: yield path path, tail = posixpath.split(path) _dedupe = dict.fromkeys def _difference(minuend, subtrahend): return itertools.filterfalse(set(subtrahend).__contains__, minuend) class CompleteDirs(ZipFile): @staticmethod def _implied_dirs(names): parents = itertools.chain.from_iterable(map(_parents, names)) as_dirs = (p + posixpath.sep for p in parents) return _dedupe(_difference(as_dirs, names)) def namelist(self): names = super(CompleteDirs, self).namelist() return names + list(self._implied_dirs(names)) def _name_set(self): return set(self.namelist()) def resolve_dir(self, name): names = self._name_set() dirname = name + '/' dir_match = name not in names and dirname in names return dirname if dir_match else name @classmethod def make(cls, source): if isinstance(source, CompleteDirs): return source if not isinstance(source, ZipFile): return cls(source) if 'r' not in source.mode: cls = CompleteDirs source.__class__ = cls return source class FastLookup(CompleteDirs): def namelist(self): with contextlib.suppress(AttributeError): return self.__names self.__names = super(FastLookup, self).namelist() return self.__names def _name_set(self): with contextlib.suppress(AttributeError): return self.__lookup self.__lookup = super(FastLookup, self)._name_set() return self.__lookup class Path: __repr = "{self.__class__.__name__}({self.root.filename!r}, {self.at!r})" def __init__(self, root, at=""): self.root = FastLookup.make(root) self.at = at def open(self, mode='r', *args, pwd=None, **kwargs): if self.is_dir(): raise IsADirectoryError(self) zip_mode = mode[0] if not self.exists() and zip_mode == 'r': raise FileNotFoundError(self) stream = self.root.open(self.at, zip_mode, pwd=pwd) if 'b' in mode: if args or kwargs: raise ValueError("encoding args invalid for binary operation") return stream return io.TextIOWrapper(stream, *args, **kwargs) @property def name(self): return pathlib.Path(self.at).name or self.filename.name @property def filename(self): return pathlib.Path(self.root.filename).joinpath(self.at) def read_text(self, *args, **kwargs): with self.open('r', *args, **kwargs) as strm: return strm.read() def read_bytes(self): with self.open('rb') as strm: return strm.read() def _is_child(self, path): return posixpath.dirname(path.at.rstrip("/")) == self.at.rstrip("/") def _next(self, at): return self.__class__(self.root, at) def is_dir(self): return not self.at or self.at.endswith("/") def is_file(self): return self.exists() and not self.is_dir() def exists(self): return self.at in self.root._name_set() def iterdir(self): if not self.is_dir(): raise ValueError("Can't listdir a file") subs = map(self._next, self.root.namelist()) return filter(self._is_child, subs) def __str__(self): return posixpath.join(self.root.filename, self.at) def __repr__(self): return self.__repr.format(self=self) def joinpath(self, *other): next = posixpath.join(self.at, *other) return self._next(self.root.resolve_dir(next)) __truediv__ = joinpath @property def parent(self): if not self.at: return self.filename.parent parent_at = posixpath.dirname(self.at.rstrip('/')) if parent_at: parent_at += '/' return self._next(parent_at) def main(args=None): import argparse description = 'A simple command-line interface for zipfile module.' parser = argparse.ArgumentParser(description=description) group = parser.add_mutually_exclusive_group(required=True) group.add_argument('-l', '--list', metavar='', help='Show listing of a zipfile') group.add_argument('-e', '--extract', nargs=2, metavar=('', ''), help='Extract zipfile into target dir') group.add_argument('-c', '--create', nargs='+', metavar=('', ''), help='Create zipfile from sources') group.add_argument('-t', '--test', metavar='', help='Test if a zipfile is valid') args = parser.parse_args(args) if args.test is not None: src = args.test with ZipFile(src, 'r') as zf: badfile = zf.testzip() if badfile: print("The following enclosed file is corrupted: {!r}".format(badfile)) print("Done testing") elif args.list is not None: src = args.list with ZipFile(src, 'r') as zf: zf.printdir() elif args.extract is not None: src, curdir = args.extract with ZipFile(src, 'r') as zf: zf.extractall(curdir) elif args.create is not None: zip_name = args.create.pop(0) files = args.create def addToZip(zf, path, zippath): if os.path.isfile(path): zf.write(path, zippath, ZIP_DEFLATED) elif os.path.isdir(path): if zippath: zf.write(path, zippath) for nm in sorted(os.listdir(path)): addToZip(zf, os.path.join(path, nm), os.path.join(zippath, nm)) with ZipFile(zip_name, 'w') as zf: for path in files: zippath = os.path.basename(path) if not zippath: zippath = os.path.basename(os.path.dirname(path)) if zippath in ('', os.curdir, os.pardir): zippath = '' addToZip(zf, path, zippath) if __name__ == "__main__": main()