def initialize(self):
site = getSite()
self.settings = Settings(self.context)
self.global_settings = GlobalSettings(site)
utils = getToolByName(self.context, 'plone_utils')
msg = None
if self.context.getContentType() in ('application/pdf',
'application/x-pdf', 'image/pdf'):
if not self.installed:
msg = "Since you do not have swftools installed on this " + \
"system, we can not render the pages of this PDF."
elif self.settings.converting is not None and \
self.settings.converting:
msg = "The PDF is currently being converted to the " + \
"FlexPaper view..."
self.enabled = False
elif not self.settings.successfully_converted:
msg = "There was an error trying to convert the PDF. Maybe " +\
"the PDF is encrypted, corrupt or malformed?"
self.enabled = False
else:
self.enabled = False
msg = "The file is not a PDF. No need for this view."
if msg:
mtool = getToolByName(self.context, 'portal_membership')
if mtool.checkPermission('cmf.ModifyPortalContent', self.context):
utils.addPortalMessage(msg)
def convert(context):
"""
Convert PDF to Flex Paper
"""
settings = Settings(context)
site = getSite()
global_settings = GlobalSettings(site)
if DateTime(settings.last_updated) < DateTime(context.ModificationDate()):
context = aq_inner(context)
field = context.getField('file') or context.getPrimaryField()
import transaction
# commit anything done before the expensive operation
transaction.commit()
try:
s_options = settings.command_line_options and \
settings.command_line_options or \
global_settings.command_line_options
if s_options:
opts = [
o.strip().replace(' ', '').replace('\t', '')
for o in s_options.split(',')
]
else:
opts = []
result = pdf2swf.convert(str(field.get(context).data),
opts,
password=settings.encryption_password)
transaction.begin()
if has_pab:
blob = Blob()
bfile = blob.open('w')
bfile.write(result)
bfile.close()
settings.data = blob
else:
file = BaseUnit('_converted_file',
result,
mimetype='application/x-shockwave-flash',
filename=context.getFilename().replace(
'.pdf', '.swf'),
context=context)
converted_field.set(context, file, _initializing_=True)
settings.successfully_converted = True
except:
logger.exception('Error converting PDF')
settings.successfully_converted = False
settings.last_updated = DateTime().ISO8601()
settings.converting = False
transaction.commit()
