Current File : //usr/lib/libreoffice/program/pythonloader.py
# -*- tab-width: 4; indent-tabs-mode: nil; py-indent-offset: 4 -*-
#
# This file is part of the LibreOffice project.
#
# This Source Code Form is subject to the terms of the Mozilla Public
# License, v. 2.0. If a copy of the MPL was not distributed with this
# file, You can obtain one at http://mozilla.org/MPL/2.0/.
#
# This file incorporates work covered by the following license notice:
#
# Licensed to the Apache Software Foundation (ASF) under one or more
# contributor license agreements. See the NOTICE file distributed
# with this work for additional information regarding copyright
# ownership. The ASF licenses this file to you under the Apache
# License, Version 2.0 (the "License"); you may not use this file
# except in compliance with the License. You may obtain a copy of
# the License at http://www.apache.org/licenses/LICENSE-2.0 .
#
import uno
import unohelper
import sys
import types
import os
from urllib.parse import unquote
from com.sun.star.uno import Exception,RuntimeException
from com.sun.star.loader import XImplementationLoader
from com.sun.star.lang import XServiceInfo
MODULE_PROTOCOL = "vnd.openoffice.pymodule:"
DEBUG = 0
g_supportedServices = "com.sun.star.loader.Python", # referenced by the native C++ loader !
g_implementationName = "org.openoffice.comp.pyuno.Loader" # referenced by the native C++ loader !
def splitUrl( url ):
nColon = url.find( ":" )
if -1 == nColon:
raise RuntimeException( "PythonLoader: No protocol in url " + url, None )
return url[0:nColon], url[nColon+1:len(url)]
g_loadedComponents = {}
def checkForPythonPathBesideComponent( url ):
path = unohelper.fileUrlToSystemPath( url+"/pythonpath.zip" );
if DEBUG == 1:
print(b"checking for existence of " + encfile( path ))
if 1 == os.access( encfile( path ), os.F_OK) and not path in sys.path:
if DEBUG == 1:
print(b"adding " + encfile( path ) + b" to sys.path")
sys.path.append( path )
path = unohelper.fileUrlToSystemPath( url+"/pythonpath" );
if 1 == os.access( encfile( path ), os.F_OK) and not path in sys.path:
if DEBUG == 1:
print(b"adding " + encfile( path ) + b" to sys.path")
sys.path.append( path )
def encfile(uni):
return uni.encode( sys.getfilesystemencoding())
class Loader( XImplementationLoader, XServiceInfo, unohelper.Base ):
def __init__(self, ctx ):
if DEBUG:
print("pythonloader.Loader ctor")
self.ctx = ctx
def getModuleFromUrl( self, url ):
if DEBUG:
print("pythonloader: interpreting url " + url)
protocol, dependent = splitUrl( url )
if "vnd.sun.star.expand" == protocol:
exp = self.ctx.getValueByName( "/singletons/com.sun.star.util.theMacroExpander" )
url = exp.expandMacros(unquote(dependent))
protocol,dependent = splitUrl( url )
if DEBUG:
print("pythonloader: after expansion " + protocol + ":" + dependent)
try:
if "file" == protocol:
# remove \..\ sequence, which may be useful e.g. in the build env
url = unohelper.absolutize( url, url )
# did we load the module already ?
mod = g_loadedComponents.get( url )
if not mod:
mod = types.ModuleType("uno_component")
# check for pythonpath.zip beside .py files
checkForPythonPathBesideComponent( url[0:url.rfind('/')] )
# read the file
filename = unohelper.fileUrlToSystemPath( url )
with open( filename, encoding='utf_8' ) as fileHandle:
src = fileHandle.read().replace("\r","")
if not src.endswith( "\n" ):
src = src + "\n"
# compile and execute the module
codeobject = compile( src, encfile(filename), "exec" )
mod.__file__ = filename
exec(codeobject, mod.__dict__)
g_loadedComponents[url] = mod
return mod
elif "vnd.openoffice.pymodule" == protocol:
nSlash = dependent.rfind('/')
if -1 != nSlash:
path = unohelper.fileUrlToSystemPath( dependent[0:nSlash] )
dependent = dependent[nSlash+1:len(dependent)]
if not path in sys.path:
sys.path.append( path )
mod = __import__( dependent )
path_component, dot, rest = dependent.partition('.')
while dot == '.':
path_component, dot, rest = rest.partition('.')
mod = getattr(mod, path_component)
return mod
else:
if DEBUG:
print("Unknown protocol '" + protocol + "'");
raise RuntimeException( "PythonLoader: Unknown protocol " +
protocol + " in url " +url, self )
except Exception as e:
if DEBUG:
print ("Python import exception " + str(type(e)) +
" message " + str(e) + " args " + str(e.args));
raise RuntimeException( "Couldn't load " + url + " for reason " + str(e), None )
return None
def activate( self, implementationName, dummy, locationUrl, regKey ):
if DEBUG:
print("pythonloader.Loader.activate")
mod = self.getModuleFromUrl( locationUrl )
implHelper = mod.__dict__.get( "g_ImplementationHelper" , None )
if DEBUG:
print ("Fetched ImplHelper as " + str(implHelper))
if implHelper is None:
return mod.getComponentFactory( implementationName, self.ctx.ServiceManager, regKey )
else:
return implHelper.getComponentFactory( implementationName,regKey,self.ctx.ServiceManager)
def writeRegistryInfo( self, regKey, dummy, locationUrl ):
if DEBUG:
print( "pythonloader.Loader.writeRegistryInfo" )
mod = self.getModuleFromUrl( locationUrl )
implHelper = mod.__dict__.get( "g_ImplementationHelper" , None )
if implHelper is None:
return mod.writeRegistryInfo( self.ctx.ServiceManager, regKey )
else:
return implHelper.writeRegistryInfo( regKey, self.ctx.ServiceManager )
def getImplementationName( self ):
return g_implementationName
def supportsService( self, ServiceName ):
return ServiceName in self.getSupportedServiceNames()
def getSupportedServiceNames( self ):
return g_supportedServices
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