def includeImageList(self, data):
"""Include Images in ODF archive
- data: zipped archive content
"""
builder = OOoBuilder(data)
content = builder.extract('content.xml')
xml_doc = etree.XML(content)
image_tag_list = xml_doc.xpath('//*[name() = "draw:image"]')
SVG_NAMESPACE = 'urn:oasis:names:tc:opendocument:xmlns:svg-compatible:1.0'
XLINK_NAMESPACE = 'http://www.w3.org/1999/xlink'
ratio_px_cm = 2.54 / 100.
# Flag to enable modification of OOoBuilder
odt_content_modified = False
for image_tag in image_tag_list:
frame = image_tag.getparent()
#Try to get image file from ZODB
href_attribute_list = image_tag.xpath('.//@*[name() = "xlink:href"]')
url = href_attribute_list[0]
parse_result = urlparse(unquote(url))
# urlparse return a 6-tuple: scheme, netloc, path, params, query, fragment
netloc = parse_result[1]
path = parse_result[2]
if path and netloc in ('', None):
# it makes sense to include only relative to current site images not remote ones which can be taken by OOo
# OOo corrupt relative Links inside HTML content during odt conversion
# <img src="REF.TO.IMAGE" ... /> become <draw:image xlink:href="../REF.TO.IMAGE" ... />
# So remove "../" added by OOo
path = CLEAN_RELATIVE_PATH.sub('', path)
# in some cases like Web Page content "/../" can be contained in image URL which will break
# restrictedTraverse calls, our best guess is to remove it
path = path.replace('/../', '')
# remove occurencies of '//' or '///' in path (happens with web pages) and leave
# a traversable relative URL
path = '/'.join([x for x in path.split('/') if x.strip()!=''])
# retrieve http parameters and use them to convert image
query_parameter_string = parse_result[4]
image_parameter_dict = dict(parse_qsl(query_parameter_string))
try:
image = self.context.restrictedTraverse(path)
except (AttributeError, KeyError):
#Image not found, this image is probably not hosted by ZODB. Do nothing
image = None
if image is not None:
odt_content_modified = True
content_type = image.getContentType()
format = image_parameter_dict.pop('format', None)
# convert API accepts only a certail range of arguments
for key, value in image_parameter_dict.items():
if key not in ('format', 'display', 'quality', 'resolution',):
image_parameter_dict.pop(key)
if getattr(image, 'convert', None) is not None:
# The document support conversion so perform conversion
# according given parameters
mime, image_data = image.convert(format, **image_parameter_dict)
# wrapp converted data into OFSImage in order to compute metadatas
# on converted result
image = OFSImage(image.getId(), image.getTitle(), image_data)
# image should be OFSImage
data = str(image.data)
width = image.width
height = image.height
if height:
frame.attrib.update({'{%s}height' % SVG_NAMESPACE: '%.3fcm' % (height * ratio_px_cm)})
if width:
frame.attrib.update({'{%s}width' % SVG_NAMESPACE: '%.3fcm' % (width * ratio_px_cm)})
if not format:
mimetype_list = self.context.getPortalObject().mimetypes_registry.lookup(content_type)
# guess a format with help of mimetypes_registry
for mimetype_object in mimetype_list:
if mimetype_object.extensions:
format = mimetype_object.extensions[0]
break
elif mimetype_object.globs:
format = mimetype_object.globs[0].strip('*.')
break
new_path = builder.addImage(data, format=format)
image_tag.attrib.update({'{%s}href' % XLINK_NAMESPACE: new_path})
if odt_content_modified:
builder.replace('content.xml', etree.tostring(xml_doc, encoding='utf-8',
xml_declaration=True,
pretty_print=False))
return builder.render()
def includeImageList(self, data):
"""Include Images in ODF archive
- data: zipped archive content
"""
builder = OOoBuilder(data)
content = builder.extract('content.xml')
xml_doc = etree.XML(content)
image_tag_list = xml_doc.xpath('//*[name() = "draw:image"]')
SVG_NAMESPACE = 'urn:oasis:names:tc:opendocument:xmlns:svg-compatible:1.0'
XLINK_NAMESPACE = 'http://www.w3.org/1999/xlink'
ratio_px_cm = 2.54 / 100.
# Flag to enable modification of OOoBuilder
odt_content_modified = False
for image_tag in image_tag_list:
frame = image_tag.getparent()
#Try to get image file from ZODB
href_attribute_list = image_tag.xpath(
'.//@*[name() = "xlink:href"]')
url = href_attribute_list[0]
parse_result = urlparse(unquote(url))
# urlparse return a 6-tuple: scheme, netloc, path, params, query, fragment
netloc = parse_result[1]
path = parse_result[2]
if path and netloc in ('', None):
# it makes sense to include only relative to current site images not remote ones which can be taken by OOo
# OOo corrupt relative Links inside HTML content during odt conversion
# <img src="REF.TO.IMAGE" ... /> become <draw:image xlink:href="../REF.TO.IMAGE" ... />
# So remove "../" added by OOo
path = CLEAN_RELATIVE_PATH.sub('', path)
# in some cases like Web Page content "/../" can be contained in image URL which will break
# restrictedTraverse calls, our best guess is to remove it
path = path.replace('/../', '')
# remove occurencies of '//' or '///' in path (happens with web pages) and leave
# a traversable relative URL
path = '/'.join(
[x for x in path.split('/') if x.strip() != ''])
# retrieve http parameters and use them to convert image
query_parameter_string = parse_result[4]
image_parameter_dict = dict(parse_qsl(query_parameter_string))
try:
image = self.context.restrictedTraverse(path)
except (AttributeError, KeyError):
#Image not found, this image is probably not hosted by ZODB. Do nothing
image = None
if image is not None:
odt_content_modified = True
content_type = image.getContentType()
format = image_parameter_dict.pop('format', None)
# convert API accepts only a certail range of arguments
for key, value in ensure_list(
image_parameter_dict.items()):
if key not in (
'format',
'display',
'quality',
'resolution',
):
image_parameter_dict.pop(key)
if getattr(image, 'convert', None) is not None:
# The document support conversion so perform conversion
# according given parameters
mime, image_data = image.convert(
format, **image_parameter_dict)
# wrapp converted data into OFSImage in order to compute metadatas
# on converted result
image = OFSImage(image.getId(), image.getTitle(),
image_data)
# image should be OFSImage
data = str(image.data)
width = image.width
height = image.height
if height:
frame.attrib.update({
'{%s}height' % SVG_NAMESPACE:
'%.3fcm' % (height * ratio_px_cm)
})
if width:
frame.attrib.update({
'{%s}width' % SVG_NAMESPACE:
'%.3fcm' % (width * ratio_px_cm)
})
if not format:
mimetype_list = self.context.getPortalObject(
).mimetypes_registry.lookup(content_type)
# guess a format with help of mimetypes_registry
for mimetype_object in mimetype_list:
if mimetype_object.extensions:
format = mimetype_object.extensions[0]
break
elif mimetype_object.globs:
format = mimetype_object.globs[0].strip('*.')
break
new_path = builder.addImage(data, format=format)
image_tag.attrib.update(
{'{%s}href' % XLINK_NAMESPACE: new_path})
if odt_content_modified:
builder.replace(
'content.xml',
etree.tostring(xml_doc,
encoding='utf-8',
xml_declaration=True,
pretty_print=False))
return builder.render()
def includeImageList(self, data):
"""Include Images in ODF archive
- data: zipped archive content
"""
builder = OOoBuilder(data)
content = builder.extract("content.xml")
xml_doc = etree.XML(content)
image_tag_list = xml_doc.xpath('//*[name() = "draw:image"]')
SVG_NAMESPACE = "urn:oasis:names:tc:opendocument:xmlns:svg-compatible:1.0"
XLINK_NAMESPACE = "http://www.w3.org/1999/xlink"
ratio_px_cm = 2.54 / 100.0
# Flag to enable modification of OOoBuilder
odt_content_modified = False
for image_tag in image_tag_list:
frame = image_tag.getparent()
# Try to get image file from ZODB
href_attribute_list = image_tag.xpath('.//@*[name() = "xlink:href"]')
url = href_attribute_list[0]
parse_result = urlparse(unquote(url))
# urlparse return a 6-tuple: scheme, netloc, path, params, query, fragment
path = parse_result[2]
if path:
# OOo corrupt relative Links inside HTML content during odt conversion
# <img src="REF.TO.IMAGE" ... /> become <draw:image xlink:href="../REF.TO.IMAGE" ... />
# So remove "../" added by OOo
path = CLEAN_RELATIVE_PATH.sub("", path)
# in some cases like Web Page content "/../" can be contained in image URL which will break
# restrictedTraverse calls, our best guess is to remove it
path = path.replace("/../", "")
# retrieve http parameters and use them to convert image
query_parameter_string = parse_result[4]
image_parameter_dict = dict(parse_qsl(query_parameter_string))
try:
image = self.context.restrictedTraverse(path)
except (AttributeError, KeyError):
# Image not found, this image is probably not hosted by ZODB. Do nothing
image = None
if image is not None:
odt_content_modified = True
content_type = image.getContentType()
format = image_parameter_dict.pop("format", None)
if getattr(image, "convert", None) is not None:
# The document support conversion so perform conversion
# according given parameters
mime, image_data = image.convert(format, **image_parameter_dict)
# wrapp converted data into OFSImage in order to compute metadatas
# on converted result
image = OFSImage(image.getId(), image.getTitle(), image_data)
# image should be OFSImage
data = str(image.data)
width = image.width
height = image.height
if height:
frame.attrib.update({"{%s}height" % SVG_NAMESPACE: "%.3fcm" % (height * ratio_px_cm)})
if width:
frame.attrib.update({"{%s}width" % SVG_NAMESPACE: "%.3fcm" % (width * ratio_px_cm)})
if not format:
mimetype_list = self.context.getPortalObject().mimetypes_registry.lookup(content_type)
# guess a format with help of mimetypes_registry
for mimetype_object in mimetype_list:
if mimetype_object.extensions:
format = mimetype_object.extensions[0]
break
elif mimetype_object.globs:
format = mimetype_object.globs[0].strip("*.")
break
new_path = builder.addImage(data, format=format)
image_tag.attrib.update({"{%s}href" % XLINK_NAMESPACE: new_path})
if odt_content_modified:
builder.replace(
"content.xml", etree.tostring(xml_doc, encoding="utf-8", xml_declaration=True, pretty_print=False)
)
return builder.render()
