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980e05cc99
Backported 400 revisions from rev 1de4961-8897c5b (2018-2014).
Move core/benchmark, core/cmd_line, core/memory, core/profiler and core/timeout to core/optional/*
Remove metadata/qt*
PORT: Version 2.0a3 (inline with 3.0a3 @ f80c7d5).
Basic Support for XMP Packets.
tga: improvements to adhere more closely to the spec.
pdf: slightly improved parsing.
rar: fix TypeError on unknown block types.
Add MacRoman win32 codepage.
tiff/exif: support SubIFDs and tiled images.
Add method to export metadata in dictionary.
mpeg_video: don't attempt to parse Stream past length.
mpeg_video: parse ESCR correctly, add SCR value.
Change centralise CustomFragments.
field: don't set parser class if class is None, to enable autodetect.
field: add value/display for CustomFragment.
parser: inline warning to enable tracebacks in debug mode.
Fix empty bytestrings in makePrintable.
Fix contentSize in jpeg.py to account for image_data blocks.
Fix the ELF parser.
Enhance the AR archive parser.
elf parser: fix wrong wrong fields order in parsing little endian section flags.
elf parser: add s390 as a machine type.
Flesh out mp4 parser.
PORT: Version 2.0a1 (inline with 3.0a1).
Major refactoring and PEP8.
Fix ResourceWarning warnings on files. Add a close() method and support for the context manager protocol ("with obj: ...") to parsers, input and output streams.
metadata: get comment from ZIP.
Support for InputIOStream.read(0).
Fix sizeGe when size is None.
Remove unused new_seekable_field_set file.
Remove parser Mapsforge .map.
Remove parser Parallel Realities Starfighter .pak files.
sevenzip: fix for newer archives.
java: update access flags and modifiers for Java 1.7 and update description text for most recent Java.
Support ustar prefix field in tar archives.
Remove file_system* parsers.
Remove misc parsers 3d0, 3ds, gnome_keyring, msoffice*, mstask, ole*, word*.
Remove program parsers macho, nds, prc.
Support non-8bit Character subclasses.
Python parser supports Python 3.7.
Enhance mpeg_ts parser to support MTS/M2TS.
Support for creation date in tiff.
Change don't hardcode errno constant.
PORT: 1.9.1
Internal Only: The following are legacy reference to upstream commit messages.
Relevant changes up to b0a115f8.
Use integer division.
Replace HACHOIR_ERRORS with Exception.
Fix metadata.Data: make it sortable.
Import fixes from e7de492.
PORT: Version 2.0a1 (inline with 3.0a1 @ e9f8fad).
Replace hachoir.core.field with hachoir.field
Replace hachoir.core.stream with hachoir.stream
Remove the compatibility module for PY1.5 to PY2.5.
metadata: support TIFF picture.
metadata: fix string normalization.
metadata: fix datetime regex Fix hachoir bug #57.
FileFromInputStream: fix comparison between None and an int.
InputIOStream: open the file in binary mode.
40 lines
1.5 KiB
Python
40 lines
1.5 KiB
Python
from hachoir.core.i18n import getTerminalCharset, guessBytesCharset, _
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from hachoir.stream import InputIOStream, InputSubStream, InputStreamError
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def FileInputStream(filename, real_filename=None, **args):
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"""
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Create an input stream of a file. filename must be unicode.
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real_filename is an optional argument used to specify the real filename,
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its type can be 'str' or 'unicode'. Use real_filename when you are
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not able to convert filename to real unicode string (ie. you have to
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use unicode(name, 'replace') or unicode(name, 'ignore')).
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"""
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# assert isinstance(filename, unicode)
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if not real_filename:
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real_filename = filename
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try:
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inputio = open(real_filename, 'rb')
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except IOError, err:
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charset = getTerminalCharset()
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errmsg = unicode(str(err), charset)
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raise InputStreamError(_(
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"Unable to open file %s: %s") % (filename, errmsg))
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source = "file:" + filename
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offset = args.pop("offset", 0)
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size = args.pop("size", None)
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if offset or size:
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if size:
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size = 8 * size
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stream = InputIOStream(inputio, source=source, **args)
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return InputSubStream(stream, 8 * offset, size, **args)
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else:
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args.setdefault("tags", []).append(("filename", filename))
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return InputIOStream(inputio, source=source, **args)
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def guessStreamCharset(stream, address, size, default=None):
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size = min(size, 1024 * 8)
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bytes = stream.readBytes(address, size // 8)
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return guessBytesCharset(bytes, default)
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