0af3bb6512
git-svn-id: svn://svn.cy55.de/Zope3/src/cybertools/trunk@1869 fd906abe-77d9-0310-91a1-e0d9ade77398
133 lines
4.3 KiB
Python
133 lines
4.3 KiB
Python
##############################################################################
|
|
#
|
|
# Copyright (c) 2004 Zope Corporation and Contributors.
|
|
# All Rights Reserved.
|
|
#
|
|
# This software is subject to the provisions of the Zope Public License,
|
|
# Version 2.1 (ZPL). A copy of the ZPL should accompany this distribution.
|
|
# THIS SOFTWARE IS PROVIDED "AS IS" AND ANY AND ALL EXPRESS OR IMPLIED
|
|
# WARRANTIES ARE DISCLAIMED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
|
|
# WARRANTIES OF TITLE, MERCHANTABILITY, AGAINST INFRINGEMENT, AND FITNESS
|
|
# FOR A PARTICULAR PURPOSE.
|
|
#
|
|
##############################################################################
|
|
"""Python Page
|
|
|
|
$Id$
|
|
"""
|
|
|
|
__docformat__ = 'restructuredtext'
|
|
|
|
import new
|
|
import re
|
|
from cStringIO import StringIO
|
|
from persistent import Persistent
|
|
from zope.proxy import removeAllProxies
|
|
from zope.security.untrustedpython.builtins import SafeBuiltins
|
|
from zope.security.untrustedpython.rcompile import compile
|
|
from zope.traversing.api import getParent, getPath
|
|
from zope.app.container.contained import Contained
|
|
#from zope.app.interpreter.interfaces import IInterpreter
|
|
from zope.interface import implements
|
|
from zope.app.i18n import ZopeMessageFactory as _
|
|
|
|
from cybertools.pyscript.interfaces import IPythonScript
|
|
|
|
|
|
class PythonScript(Contained, Persistent):
|
|
"""Persistent Python Page - Content Type
|
|
"""
|
|
|
|
implements(IPythonScript)
|
|
|
|
_v_compiled = None
|
|
|
|
def __init__(self, source=u'', contentType=u'text/plain'):
|
|
"""Initialize the object."""
|
|
super(PythonScript, self).__init__()
|
|
self.source = source
|
|
self.contentType = contentType
|
|
|
|
def __filename(self):
|
|
if self.__parent__ is None:
|
|
filename = 'N/A'
|
|
else:
|
|
filename = getPath(self)
|
|
return filename
|
|
|
|
def setSource(self, source):
|
|
"""Set the source of the page and compile it.
|
|
|
|
This method can raise a syntax error, if the source is not valid.
|
|
"""
|
|
self.__source = source
|
|
self.__prepared_source = self.prepareSource(source)
|
|
# Compile objects cannot be pickled
|
|
self._v_compiled = Function(self.__prepared_source, self.__filename())
|
|
|
|
_tripleQuotedString = re.compile(
|
|
r"^([ \t]*)[uU]?([rR]?)(('''|\"\"\")(.*)\4)", re.MULTILINE | re.DOTALL)
|
|
|
|
def prepareSource(self, source):
|
|
"""Prepare source."""
|
|
# compile() don't accept '\r' altogether
|
|
source = source.replace("\r\n", "\n")
|
|
source = source.replace("\r", "\n")
|
|
if isinstance(source, unicode):
|
|
# Use special conversion function to work around
|
|
# compiler-module failure to handle unicode in literals
|
|
try:
|
|
source = source.encode('ascii')
|
|
except UnicodeEncodeError:
|
|
return self._tripleQuotedString.sub(_print_usrc, source)
|
|
return self._tripleQuotedString.sub(r"\1print \2\3", source)
|
|
|
|
|
|
def getSource(self):
|
|
"""Get the original source code."""
|
|
return self.__source
|
|
|
|
source = property(getSource, setSource)
|
|
|
|
def __call__(self, request, **kw):
|
|
output = StringIO()
|
|
if self._v_compiled is None:
|
|
self._v_compiled = Function(self.__prepared_source,
|
|
self.__filename())
|
|
kw['request'] = request
|
|
kw['script'] = self
|
|
kw['untrusted_output'] = kw['printed'] = output
|
|
kw['context'] = getParent(self)
|
|
kw['script_result'] = None
|
|
self._v_compiled(kw)
|
|
result = kw['script_result']
|
|
if result == output:
|
|
result = result.getvalue().decode('unicode-escape')
|
|
return result
|
|
|
|
|
|
class Function(object):
|
|
"""A compiled function.
|
|
"""
|
|
|
|
def __init__(self, source, filename='<string>'):
|
|
lines = []
|
|
lines.insert(0, 'def dummy(): \n pass')
|
|
for line in source.splitlines():
|
|
lines.append(' ' + line)
|
|
lines.append('script_result = dummy()')
|
|
source = '\n'.join(lines)
|
|
#print source
|
|
self.code = compile(source, filename, 'exec')
|
|
|
|
def __call__(self, globals):
|
|
globals['__builtins__'] = SafeBuiltins
|
|
exec self.code in globals, None
|
|
|
|
|
|
def _print_usrc(match):
|
|
string = match.group(3)
|
|
raw = match.group(2)
|
|
if raw:
|
|
return match.group(1)+'print '+`string`
|
|
return match.group(1)+'print '+match.group(3).encode('unicode-escape')
|