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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.
86 lines
2.4 KiB
Python
86 lines
2.4 KiB
Python
"""
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Photoshop parser (.psd file).
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Creation date: 8 january 2006
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Author: Victor Stinner
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"""
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from hachoir.parser import Parser
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from hachoir.field import (FieldSet,
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UInt16, UInt32, String, NullBytes, Enum, RawBytes)
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from hachoir.core.endian import BIG_ENDIAN
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from hachoir.parser.image.photoshop_metadata import Photoshop8BIM
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class Config(FieldSet):
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def __init__(self, *args):
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FieldSet.__init__(self, *args)
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self._size = (4 + self["size"].value) * 8
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def createFields(self):
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yield UInt32(self, "size")
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while not self.eof:
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yield Photoshop8BIM(self, "item[]")
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class PsdFile(Parser):
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endian = BIG_ENDIAN
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PARSER_TAGS = {
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"id": "psd",
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"category": "image",
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"file_ext": ("psd",),
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"mime": (u"image/psd", u"image/photoshop", u"image/x-photoshop"),
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"min_size": 4 * 8,
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"magic": (("8BPS\0\1", 0),),
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"description": "Photoshop (PSD) picture",
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}
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COLOR_MODE = {
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0: u"Bitmap",
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1: u"Grayscale",
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2: u"Indexed",
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3: u"RGB color",
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4: u"CMYK color",
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7: u"Multichannel",
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8: u"Duotone",
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9: u"Lab Color",
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}
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COMPRESSION_NAME = {
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0: "Raw data",
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1: "RLE",
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}
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def validate(self):
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if self.stream.readBytes(0, 4) != "8BPS":
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return "Invalid signature"
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return True
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def createFields(self):
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yield String(self, "signature", 4, "PSD signature (8BPS)", charset="ASCII")
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yield UInt16(self, "version")
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yield NullBytes(self, "reserved[]", 6)
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yield UInt16(self, "nb_channels")
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yield UInt32(self, "width")
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yield UInt32(self, "height")
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yield UInt16(self, "depth")
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yield Enum(UInt16(self, "color_mode"), self.COLOR_MODE)
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# Mode data
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yield UInt32(self, "mode_data_size")
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size = self["mode_data_size"].value
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if size:
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yield RawBytes(self, "mode_data", size)
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# Resources
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yield Config(self, "config")
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# Reserved
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yield UInt32(self, "reserved_data_size")
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size = self["reserved_data_size"].value
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if size:
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yield RawBytes(self, "reserved_data", size)
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yield Enum(UInt16(self, "compression"), self.COMPRESSION_NAME)
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size = (self.size - self.current_size) // 8
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if size:
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yield RawBytes(self, "end", size)
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