Commit 82fe15e5 authored by Jérome Perrin's avatar Jérome Perrin

patches/OFSImage: update monkey patch with Zope-4.8.9 version

parent bb762efd
...@@ -22,14 +22,14 @@ from io import BytesIO ...@@ -22,14 +22,14 @@ from io import BytesIO
from zExceptions import Forbidden from zExceptions import Forbidden
def getImageInfo_with_svg_fix(data): def getImageInfo_with_svg_fix(data):
data = str(data) data = bytes(data)
size = len(data) size = len(data)
height = -1 height = -1
width = -1 width = -1
content_type = '' content_type = ''
# handle GIFs # handle GIFs
if (size >= 10) and data[:6] in ('GIF87a', 'GIF89a'): if (size >= 10) and data[:6] in (b'GIF87a', b'GIF89a'):
# Check to see if content_type is correct # Check to see if content_type is correct
content_type = 'image/gif' content_type = 'image/gif'
w, h = struct.unpack("<HH", data[6:10]) w, h = struct.unpack("<HH", data[6:10])
...@@ -39,15 +39,16 @@ def getImageInfo_with_svg_fix(data): ...@@ -39,15 +39,16 @@ def getImageInfo_with_svg_fix(data):
# See PNG v1.2 spec (http://www.cdrom.com/pub/png/spec/) # See PNG v1.2 spec (http://www.cdrom.com/pub/png/spec/)
# Bytes 0-7 are below, 4-byte chunk length, then 'IHDR' # Bytes 0-7 are below, 4-byte chunk length, then 'IHDR'
# and finally the 4-byte width, height # and finally the 4-byte width, height
elif ((size >= 24) and (data[:8] == '\211PNG\r\n\032\n') elif (size >= 24
and (data[12:16] == 'IHDR')): and data[:8] == b'\211PNG\r\n\032\n'
and data[12:16] == b'IHDR'):
content_type = 'image/png' content_type = 'image/png'
w, h = struct.unpack(">LL", data[16:24]) w, h = struct.unpack(">LL", data[16:24])
width = int(w) width = int(w)
height = int(h) height = int(h)
# Maybe this is for an older PNG version. # Maybe this is for an older PNG version.
elif (size >= 16) and (data[:8] == '\211PNG\r\n\032\n'): elif (size >= 16) and (data[:8] == b'\211PNG\r\n\032\n'):
# Check to see if we have the right content type # Check to see if we have the right content type
content_type = 'image/png' content_type = 'image/png'
w, h = struct.unpack(">LL", data[8:16]) w, h = struct.unpack(">LL", data[8:16])
...@@ -55,29 +56,32 @@ def getImageInfo_with_svg_fix(data): ...@@ -55,29 +56,32 @@ def getImageInfo_with_svg_fix(data):
height = int(h) height = int(h)
# handle JPEGs # handle JPEGs
elif (size >= 2) and (data[:2] == '\377\330'): elif (size >= 2) and (data[:2] == b'\377\330'):
content_type = 'image/jpeg' content_type = 'image/jpeg'
jpeg = BytesIO(data) jpeg = BytesIO(data)
jpeg.read(2) jpeg.read(2)
b = jpeg.read(1) b = jpeg.read(1)
try: try:
while (b and ord(b) != 0xDA): while (b and ord(b) != 0xDA):
while (ord(b) != 0xFF): b = jpeg.read(1) while (ord(b) != 0xFF):
while (ord(b) == 0xFF): b = jpeg.read(1) b = jpeg.read(1)
while (ord(b) == 0xFF):
b = jpeg.read(1)
if (ord(b) >= 0xC0 and ord(b) <= 0xC3): if (ord(b) >= 0xC0 and ord(b) <= 0xC3):
jpeg.read(3) jpeg.read(3)
h, w = struct.unpack(">HH", jpeg.read(4)) h, w = struct.unpack(">HH", jpeg.read(4))
break break
else: else:
jpeg.read(int(struct.unpack(">H", jpeg.read(2))[0])-2) jpeg.read(int(struct.unpack(">H", jpeg.read(2))[0]) - 2)
b = jpeg.read(1) b = jpeg.read(1)
width = int(w) width = int(w)
height = int(h) height = int(h)
except: pass except Exception:
pass
# MONKEY PATCH START HERE # MONKEY PATCH START HERE
# Handle SVG # Handle SVG
elif ("</svg>" in data): elif (b"</svg>" in data):
content_type = 'image/svg+xml' content_type = 'image/svg+xml'
# MONKEY PATCH ENDS HERE # MONKEY PATCH ENDS HERE
......
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