Commit 409a29fb authored by Jérome Perrin's avatar Jérome Perrin Committed by Arnaud Fontaine

PortalTransforms: update transforms/rest for zope4 compatibility

Update to https://github.com/plone/Products.PortalTransforms/blob/3.2.0/Products/PortalTransforms/transforms/rest.py
because Zope4 no longer ship with a reStructuredText module and recommend
using docutils directly instead, which is what upstream did.

( in zope4py2 branch this was working because slapos patch
component/egg-patch/Zope/0001-OFS-XMLExportImport.patch used to bring
back reStructuredText but we don't seem to need it )
parent c05fd9b7
# -*- coding: utf-8 -*-
from Products.PortalTransforms.interfaces import ITransform from Products.PortalTransforms.interfaces import ITransform
from docutils.core import publish_parts
from zope.interface import implementer from zope.interface import implementer
from reStructuredText import HTML
import sys import six
@implementer(ITransform) @implementer(ITransform)
class rest: class rest(object):
r"""Converts from reST to HTML. r"""Converts from reST to HTML.
>>> transform = rest() >>> transform = rest()
...@@ -13,7 +16,7 @@ class rest: ...@@ -13,7 +16,7 @@ class rest:
... self.value = data ... self.value = data
>>> data = transform.convert('*hello world*', D()) >>> data = transform.convert('*hello world*', D())
>>> print data.value >>> print(data.value)
<p><em>hello world</em></p> <p><em>hello world</em></p>
<BLANKLINE> <BLANKLINE>
...@@ -21,55 +24,131 @@ class rest: ...@@ -21,55 +24,131 @@ class rest:
default: default:
>>> try: >>> try:
... out = transform.convert('.. raw:: html\n :file: <isonum.txt>', D()) ... out = transform.convert('.. raw:: html\n :file: <isonum.txt>', D()) # noqa
... except NotImplementedError: ... except NotImplementedError:
... print 'Good' ... print('Good')
... else: ... else:
... if "&quot;raw&quot; directive disabled." in out.value: ... if "&quot;raw&quot; directive disabled." in out.value:
... print 'Good' ... print('Good')
... else: ... else:
... print 'Failure' ... print('Failure')
Good Good
>>> try: >>> try:
... out = transform.convert('.. include:: <isonum.txt>', D()) ... out = transform.convert('.. include:: <isonum.txt>', D())
... except NotImplementedError: ... except NotImplementedError:
... print 'Good' ... print('Good')
... else: ... else:
... if "&quot;include&quot; directive disabled." in out.value: ... if "&quot;include&quot; directive disabled." in out.value:
... print 'Good' ... print('Good')
... else: ... else:
... print 'Failure' ... print('Failure')
Good Good
""" """
__name__ = "rest_to_html" __name__ = "rest_to_html"
inputs = ("text/x-rst", "text/restructured",) inputs = ("text/x-rst", "text/restructured",)
output = "text/html" output = "text/html"
def __init__(self, name=None, **kwargs):
if name:
self.__name__ = name
self.config = {
'inputs': self.inputs,
'output': self.output,
'report_level': 2,
'initial_header_level': 2,
}
self.config_metadata = {
'inputs':
('list', 'Inputs', 'Input(s) MIME type. Change with care.'),
'initial_header_level':
('int', 'Initial Header Level',
'Level of first header tag. Setting it to "2" will make '
'the first header be "<h2>".'),
'report_level':
('int', 'Report Level',
'Level of error reporting. Set to "1" will display all '
'messages. Setting it to "5" will display no messages.'),
}
self.config.update(kwargs)
def name(self): def name(self):
return self.__name__ return self.__name__
def convert(self, orig, data, **kwargs): def convert(self, orig, data, **kwargs):
# do the format # do the format
encoding = kwargs.get('encoding', 'utf-8') writer_name = kwargs.get('writer_name', 'html4css1')
input_encoding = kwargs.get('input_encoding', encoding)
encoding = kwargs.get('encoding', 'utf-8')
input_encoding = kwargs.get('input_encoding', encoding)
output_encoding = kwargs.get('output_encoding', encoding) output_encoding = kwargs.get('output_encoding', encoding)
language = kwargs.get('language', 'en') language = kwargs.get('language', 'en')
warnings = kwargs.get('warnings', None) initial_header_level = int(self.config.get('initial_header_level', 2))
settings = {'documentclass': '', report_level = int(self.config.get('report_level', 2))
'traceback': 1, # Note: we must NOT use warning_stream and stylesheet, because an attacker can abuse them.
} # See https://sourceforge.net/p/docutils/bugs/413/
html = HTML(orig, # Part of PloneHotfix20210518.
report_level=2, # It would be okay if we can be sure this method is called from trusted Python code,
input_encoding=input_encoding, # but we cannot be sure.
output_encoding=output_encoding, # We keep them in the settings, to be sure nothing changes due to this fix.
language_code=language, settings = {
warnings=warnings, 'documentclass': '',
settings=settings) 'traceback': 1,
'input_encoding': input_encoding,
'output_encoding': output_encoding,
'stylesheet': None,
'stylesheet_path': None,
'file_insertion_enabled': 0,
'raw_enabled': 0,
'language_code': language,
# starting level for <H> elements:
'initial_header_level': initial_header_level + 1,
# set the reporting level to something sane:
'report_level': report_level,
# don't break if we get errors:
'halt_level': 6,
# remember warnings:
'warning_stream': None
}
parts = publish_parts(
source=orig,
writer_name=writer_name,
settings_overrides=settings,
config_section='zope application'
)
header = '<h%(level)s class="title">%(title)s</h%(level)s>\n' % {
'level': initial_header_level,
'title': parts['title']}
subheader = '<h%(level)s class="subtitle">%(subtitle)s</h%(level)s>\n' % { # noqa
'level': initial_header_level+1,
'subtitle': parts['subtitle']}
body = '%(docinfo)s%(body)s' % {
'docinfo': parts['docinfo'],
'body': parts['body']}
html = ''
if parts['title']:
html = html + header
if parts['subtitle']:
html = html + subheader
html = html + body
# TODO: check if this unicode condition works on Python 3.
if six.PY2 and output_encoding != 'unicode':
html = html.encode(output_encoding)
html = html.replace(' class="document"', '', 1) html = html.replace(' class="document"', '', 1)
data.setData(html) data.setData(html)
return data return data
def register(): def register():
return rest() return rest()
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