ooo: new conversion option to pass a script to edit the document before save

Because LibreOffice does not offer a safe langage (e.g. something
without the Shell funtion), let's go with Python and disable this
feature by default.

cloudooo/handler/ooo/handler.py

@@ -53,6 +53,8 @@ class Handler(object):
   """
   implements(IHandler)
 
+  enable_scripting = False
+
   def __init__(self, base_folder_url, data, source_format, **kw):
     """Creates document in file system and loads it in OOo."""
     self.zip = kw.get('zip', False)
@@ -173,6 +175,8 @@ class Handler(object):
     Keyword Arguments:
     destination_format -- extension of document as String
     """
+    if not self.enable_scripting and kw.get('script'):
+      raise Exception("ooo: scripting is disabled")
     logger.debug("OooConvert: %s > %s" % (self.source_format, destination_format))
     kw['source_format'] = self.source_format
     if destination_format:
@@ -279,6 +283,9 @@ def bootstrapHandler(configuration_dict):
   signal(SIGQUIT, stopProcesses)
   signal(SIGHUP, stopProcesses)
 
+  Handler.enable_scripting = ('false', 'true').index(
+    configuration_dict.pop("ooo_enable_scripting", 'false'))
+
   working_path = configuration_dict.get('working_path')
   application_hostname = configuration_dict.get('application_hostname')
   openoffice_port = int(configuration_dict.get('openoffice_port'))

cloudooo/handler/ooo/helper/unoconverter.py

@@ -75,6 +75,9 @@ Options:
                         Dictionary with metadata
   --infilter=FILTER_NAME[:FILTER_OPTIONS]
                         Import filter with options
+  --script=PYTHON_TEXT
+                        Script to execute on the loaded document,
+                        in Python langage
 """
 
 
@@ -193,6 +196,15 @@ class UnoDocument(object):
     module_manager = createInstance("com.sun.star.frame.ModuleManager")
     self.document_type = module_manager.identify(uno_document)
 
+  def runScript(self, script):
+    exec(script, {
+      # Inspired from XSCRIPTCONTEXT API.
+      # XXX: Is it possible to get a real XSCRIPTCONTEXT object?
+      "ComponentContext": self.service_manager.DefaultContext,
+      #"Desktop": self.desktop, # is there any reasonable use?
+      "Document": self.document_loaded,
+    })
+
   def convert(self):
     """it converts a document to specific format"""
     for document_type, filter_name in self.filter_list:
@@ -305,7 +317,7 @@ def main():
       "hostname=", "port=", "source_format=",
       "document_url=", "destination_format=",
       "mimemapper=", "metadata=", "refresh=",
-      "unomimemapper_bin=", "infilter="])
+      "unomimemapper_bin=", "infilter=", "script="])
   except GetoptError as msg:
     msg = msg.msg + help_msg
     sys.stderr.write(msg)
@@ -317,7 +329,7 @@ def main():
     import json
   except ImportError:
     import simplejson as json
-  metadata = mimemapper = None
+  metadata = mimemapper = script = None
   hostname = port = office_binary_path = uno_path = None
   document_url = destination_format = source_format = infilter = refresh = None
   for opt, arg in iter(opt_list):
@@ -346,11 +358,15 @@ def main():
       mimemapper = json.loads(arg)
     elif opt == '--infilter':
       infilter = arg
+    elif opt == '--script':
+      script = arg
 
   service_manager = helper_util.getServiceManager(
     hostname, port, uno_path, office_binary_path)
   unodocument = UnoDocument(service_manager, document_url,
     source_format, destination_format, infilter, refresh)
+  if script:
+    unodocument.runScript(script)
   if '--setmetadata' in param_list:
     unodocument.setMetadata(metadata)
     output = document_url

cloudooo/sample/sample.conf

@@ -54,6 +54,8 @@ mimetype_registry =
   video/* * ffmpeg
   * application/vnd.oasis.opendocument* ooo
 
+ooo_enable_scripting = false
+
 # This is used to disable ooo filters
 #
 # Below is an example list of spreadsheet filters by UI Name.