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Restored original error messages

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I suspect the tests to check against an exact string when expecting an error
This commit is contained in:
artscoop 2015-03-05 08:47:34 +01:00
parent c8fddb19f5
commit 82aa9011c9
1 changed files with 7 additions and 8 deletions
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15
PIL/BmpImagePlugin.py
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@ -91,7 +91,6 @@ class BmpImageFile(ImageFile.ImageFile):
file_info['header_size'] = i32(read(4)) # read bmp header size @offset 14 (this is part of the header size) file_info['header_size'] = i32(read(4)) # read bmp header size @offset 14 (this is part of the header size)
file_info['direction'] = -1 file_info['direction'] = -1
header_data = ImageFile._safe_read(self.fp, file_info['header_size'] - 4) # read the rest of the bmp header, without its size header_data = ImageFile._safe_read(self.fp, file_info['header_size'] - 4) # read the rest of the bmp header, without its size
file_info['header_size'] = len(header_data) + 4
#---------------------------------------------------- IBM OS/2 Bitmap v1 #---------------------------------------------------- IBM OS/2 Bitmap v1
#------- This format has different offsets because of width/height types #------- This format has different offsets because of width/height types
if file_info['header_size'] == 12: if file_info['header_size'] == 12:
@ -134,18 +133,18 @@ class BmpImageFile(ImageFile.ImageFile):
self.info["dpi"] = tuple(map(lambda x: math.ceil(x / 39.3701), file_info['pixels_per_meter'])) self.info["dpi"] = tuple(map(lambda x: math.ceil(x / 39.3701), file_info['pixels_per_meter']))
else: else:
raise IOError("BMP images with a {0} byte header are not supported".format(file_info['header_size'])) raise IOError("Unsupported BMP header type (%d)" % file_info['header_size'])
self.size = file_info['width'], file_info['height'] self.size = file_info['width'], file_info['height']
#--------- If color count was not found in the header, compute from bits #--------- If color count was not found in the header, compute from bits
file_info['colors'] = file_info['colors'] if file_info.get('colors', 0) else (1 << file_info['bits']) file_info['colors'] = file_info['colors'] if file_info.get('colors', 0) else (1 << file_info['bits'])
#--------------------------------- Check abnormal values for DOS attacks #--------------------------------- Check abnormal values for DOS attacks
if file_info['width'] * file_info['height'] > 2**31: if file_info['width'] * file_info['height'] > 2**31:
raise IOError("BMP images with more than 2 billion pixels are not supported (here {0} pixels)".format(file_info['width'] * file_info['height'])) raise IOError("Unsupported BMP Size: (%dx%d)" % self.size)
#------------------------ Check bit depth for unusual unsupported values #------------------------ Check bit depth for unusual unsupported values
self.mode, raw_mode = BIT2MODE.get(file_info['bits'], (None, None)) self.mode, raw_mode = BIT2MODE.get(file_info['bits'], (None, None))
if self.mode is None: if self.mode is None:
raise IOError("BMP images with a {0}-bit pixel depth are not supported".format(file_info['bits'])) raise IOError("Unsupported BMP pixel depth (%d)" % file_info['bits'])
#------------------ Process BMP with Bitfields compression (not palette) #------------------ Process BMP with Bitfields compression (not palette)
if file_info['compression'] == self.BITFIELDS: if file_info['compression'] == self.BITFIELDS:
@ -158,17 +157,17 @@ class BmpImageFile(ImageFile.ImageFile):
elif file_info['bits'] in (24, 16) and file_info['rgb_mask'] in SUPPORTED[file_info['bits']]: elif file_info['bits'] in (24, 16) and file_info['rgb_mask'] in SUPPORTED[file_info['bits']]:
raw_mode = MASK_MODES[(file_info['bits'], file_info['rgb_mask'])] raw_mode = MASK_MODES[(file_info['bits'], file_info['rgb_mask'])]
else: else:
raise IOError("BMP images with the provided bitfield mask are not supported") raise IOError("Unsupported BMP bitfields layout")
else: else:
raise IOError("BMP images with the provided bitfield information are not supported") raise IOError("Unsupported BMP bitfields layout")
elif file_info['compression'] != self.RAW: elif file_info['compression'] != self.RAW:
raise IOError("BMP files with RLE (1/2), JPEG (4) and PNG (5) compression are not supported") raise IOError("Unsupported BMP compression (%d)" % compression)
#----------------- Once the header is processed, process the palette/LUT #----------------- Once the header is processed, process the palette/LUT
if self.mode == "P": # Paletted for 1, 4 and 8 bit images if self.mode == "P": # Paletted for 1, 4 and 8 bit images
#------------------------------------------------------ 1-bit images #------------------------------------------------------ 1-bit images
if not (0 < file_info['colors'] <= 65536): if not (0 < file_info['colors'] <= 65536):
raise IOError("BMP palette must have between 1 and 256 colors") raise IOError("Unsupported BMP Palette size (%d)" % file_info['colors'])
else: else:
padding = file_info['palette_padding'] padding = file_info['palette_padding']
palette = read(padding * file_info['colors']) palette = read(padding * file_info['colors'])