本文整理汇总了Python中zipfile.structFileHeader方法的典型用法代码示例。如果您正苦于以下问题：Python zipfile.structFileHeader方法的具体用法？Python zipfile.structFileHeader怎么用？Python zipfile.structFileHeader使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类zipfile的用法示例。
在下文中一共展示了zipfile.structFileHeader方法的3个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: write
# 需要导入模块: import zipfile [as 别名]
# 或者: from zipfile import structFileHeader [as 别名]
def write (self, data):
# only test for headers if we know that we're not writing
# (potentially compressed) data.
if self.in_file_data == 0:
if data[:4] == zipfile.stringFileHeader:
# fix the file header for extra Data descriptor
hdr = list (struct.unpack (zipfile.structFileHeader, data[:30]))
hdr[3] |= (1 << 3)
data = struct.pack (zipfile.structFileHeader, *hdr) + data[30:]
self.in_file_data = 1
elif data[:4] == zipfile.stringCentralDir:
# fix the directory entry to match file header.
hdr = list (struct.unpack (zipfile.structCentralDir, data[:46]))
hdr[5] |= (1 << 3)
data = struct.pack (zipfile.structCentralDir, *hdr) + data[46:]
self.position += len (data)
self.victim_fd.write (data) 示例2: readfile
# 需要导入模块: import zipfile [as 别名]
# 或者: from zipfile import structFileHeader [as 别名]
def readfile(self, name):
"""
Return file-like object for name.
"""
if self.mode not in ("r", "a"):
raise RuntimeError('read() requires mode "r" or "a"')
if not self.fp:
raise RuntimeError(
"Attempt to read ZIP archive that was already closed")
zinfo = self.getinfo(name)
self.fp.seek(zinfo.header_offset, 0)
fheader = self.fp.read(_fileHeaderSize)
if fheader[0:4] != zipfile.stringFileHeader:
raise zipfile.BadZipfile("Bad magic number for file header")
fheader = struct.unpack(zipfile.structFileHeader, fheader)
fname = self.fp.read(fheader[zipfile._FH_FILENAME_LENGTH])
if fheader[zipfile._FH_EXTRA_FIELD_LENGTH]:
self.fp.read(fheader[zipfile._FH_EXTRA_FIELD_LENGTH])
if fname != zinfo.orig_filename:
raise zipfile.BadZipfile(
'File name in directory "%s" and header "%s" differ.' % (
zinfo.orig_filename, fname))
if zinfo.compress_type == zipfile.ZIP_STORED:
return ZipFileEntry(self, zinfo.compress_size)
elif zinfo.compress_type == zipfile.ZIP_DEFLATED:
return DeflatedZipFileEntry(self, zinfo.compress_size)
else:
raise zipfile.BadZipfile(
"Unsupported compression method %d for file %s" %
(zinfo.compress_type, name)) 示例3: readfile
# 需要导入模块: import zipfile [as 别名]
# 或者: from zipfile import structFileHeader [as 别名]
def readfile(self, name):
"""
Return file-like object for name.
"""
if self.mode not in ("r", "a"):
raise RuntimeError('read() requires mode "r" or "a"')
if not self.fp:
raise RuntimeError(
"Attempt to read ZIP archive that was already closed")
zinfo = self.getinfo(name)
self.fp.seek(zinfo.header_offset, 0)
fheader = self.fp.read(_fileHeaderSize)
if fheader[0:4] != zipfile.stringFileHeader:
raise zipfile.BadZipfile("Bad magic number for file header")
fheader = struct.unpack(zipfile.structFileHeader, fheader)
fname = self.fp.read(fheader[zipfile._FH_FILENAME_LENGTH])
if fheader[zipfile._FH_EXTRA_FIELD_LENGTH]:
self.fp.read(fheader[zipfile._FH_EXTRA_FIELD_LENGTH])
if zinfo.flag_bits & 0x800:
# UTF-8 filename
fname_str = fname.decode("utf-8")
else:
fname_str = fname.decode("cp437")
if fname_str != zinfo.orig_filename:
raise zipfile.BadZipfile(
'File name in directory "%s" and header "%s" differ.' % (
zinfo.orig_filename, fname_str))
if zinfo.compress_type == zipfile.ZIP_STORED:
return ZipFileEntry(self, zinfo.compress_size)
elif zinfo.compress_type == zipfile.ZIP_DEFLATED:
return DeflatedZipFileEntry(self, zinfo.compress_size)
else:
raise zipfile.BadZipfile(
"Unsupported compression method %d for file %s" %
(zinfo.compress_type, name))