genshi/genshi-test: genshi/filters.py annotate

annotate genshi/filters.py @ 425:5b248708bbed

Try to use proper reStructuredText for docstrings throughout.

author	cmlenz
date	Thu, 22 Mar 2007 12:45:18 +0000
parents	c267061c961f
children	747baa1cd597

rev	line source
1 821114ec4f69 Initial import. cmlenz parents: diff changeset	1 # -- coding: utf-8 --
821114ec4f69 Initial import. cmlenz parents: diff changeset	2 #
408 49a3bae5a8bb Update copyright year for files modified this year. cmlenz parents: 403 diff changeset	3 # Copyright (C) 2006-2007 Edgewall Software
1 821114ec4f69 Initial import. cmlenz parents: diff changeset	4 # All rights reserved.
821114ec4f69 Initial import. cmlenz parents: diff changeset	5 #
821114ec4f69 Initial import. cmlenz parents: diff changeset	6 # This software is licensed as described in the file COPYING, which
821114ec4f69 Initial import. cmlenz parents: diff changeset	7 # you should have received as part of this distribution. The terms
230 24757b771651 Renamed Markup to Genshi in repository. cmlenz parents: 182 diff changeset	8 # are also available at http://genshi.edgewall.org/wiki/License.
1 821114ec4f69 Initial import. cmlenz parents: diff changeset	9 #
821114ec4f69 Initial import. cmlenz parents: diff changeset	10 # This software consists of voluntary contributions made by many
821114ec4f69 Initial import. cmlenz parents: diff changeset	11 # individuals. For the exact contribution history, see the revision
230 24757b771651 Renamed Markup to Genshi in repository. cmlenz parents: 182 diff changeset	12 # history and logs, available at http://genshi.edgewall.org/log/.
1 821114ec4f69 Initial import. cmlenz parents: diff changeset	13
821114ec4f69 Initial import. cmlenz parents: diff changeset	14 """Implementation of a number of stream filters."""
821114ec4f69 Initial import. cmlenz parents: diff changeset	15
821114ec4f69 Initial import. cmlenz parents: diff changeset	16 try:
821114ec4f69 Initial import. cmlenz parents: diff changeset	17 frozenset
821114ec4f69 Initial import. cmlenz parents: diff changeset	18 except NameError:
821114ec4f69 Initial import. cmlenz parents: diff changeset	19 from sets import ImmutableSet as frozenset
821114ec4f69 Initial import. cmlenz parents: diff changeset	20 import re
821114ec4f69 Initial import. cmlenz parents: diff changeset	21
403 32b283e1d310 Remove some magic/overhead from `Attrs` creation and manipulation by not automatically wrapping attribute names in `QName`. cmlenz parents: 363 diff changeset	22 from genshi.core import Attrs, QName, stripentities
363 caf7b68ab5dc Parse template includes at parse time to avoid some runtime overhead. cmlenz parents: 345 diff changeset	23 from genshi.core import END, START, TEXT
1 821114ec4f69 Initial import. cmlenz parents: diff changeset	24
363 caf7b68ab5dc Parse template includes at parse time to avoid some runtime overhead. cmlenz parents: 345 diff changeset	25 __all__ = ['HTMLFormFiller', 'HTMLSanitizer']
425 5b248708bbed Try to use proper reStructuredText for docstrings throughout. cmlenz parents: 415 diff changeset	26 __docformat__ = 'restructuredtext en'
275 7f24dd6fb904 Integrated `HTMLFormFiller` filter initially presented as a [wiki:FormFilling#Usingatemplatefilter recipe]. cmlenz parents: 230 diff changeset	27
7f24dd6fb904 Integrated `HTMLFormFiller` filter initially presented as a [wiki:FormFilling#Usingatemplatefilter recipe]. cmlenz parents: 230 diff changeset	28
7f24dd6fb904 Integrated `HTMLFormFiller` filter initially presented as a [wiki:FormFilling#Usingatemplatefilter recipe]. cmlenz parents: 230 diff changeset	29 class HTMLFormFiller(object):
7f24dd6fb904 Integrated `HTMLFormFiller` filter initially presented as a [wiki:FormFilling#Usingatemplatefilter recipe]. cmlenz parents: 230 diff changeset	30 """A stream filter that can populate HTML forms from a dictionary of values.
7f24dd6fb904 Integrated `HTMLFormFiller` filter initially presented as a [wiki:FormFilling#Usingatemplatefilter recipe]. cmlenz parents: 230 diff changeset	31
7f24dd6fb904 Integrated `HTMLFormFiller` filter initially presented as a [wiki:FormFilling#Usingatemplatefilter recipe]. cmlenz parents: 230 diff changeset	32 >>> from genshi.input import HTML
7f24dd6fb904 Integrated `HTMLFormFiller` filter initially presented as a [wiki:FormFilling#Usingatemplatefilter recipe]. cmlenz parents: 230 diff changeset	33 >>> html = HTML('''<form>
7f24dd6fb904 Integrated `HTMLFormFiller` filter initially presented as a [wiki:FormFilling#Usingatemplatefilter recipe]. cmlenz parents: 230 diff changeset	34 ... <p><input type="text" name="foo" /></p>
7f24dd6fb904 Integrated `HTMLFormFiller` filter initially presented as a [wiki:FormFilling#Usingatemplatefilter recipe]. cmlenz parents: 230 diff changeset	35 ... </form>''')
7f24dd6fb904 Integrated `HTMLFormFiller` filter initially presented as a [wiki:FormFilling#Usingatemplatefilter recipe]. cmlenz parents: 230 diff changeset	36 >>> filler = HTMLFormFiller(data={'foo': 'bar'})
7f24dd6fb904 Integrated `HTMLFormFiller` filter initially presented as a [wiki:FormFilling#Usingatemplatefilter recipe]. cmlenz parents: 230 diff changeset	37 >>> print html \| filler
7f24dd6fb904 Integrated `HTMLFormFiller` filter initially presented as a [wiki:FormFilling#Usingatemplatefilter recipe]. cmlenz parents: 230 diff changeset	38 <form>
7f24dd6fb904 Integrated `HTMLFormFiller` filter initially presented as a [wiki:FormFilling#Usingatemplatefilter recipe]. cmlenz parents: 230 diff changeset	39 <p><input type="text" name="foo" value="bar"/></p>
7f24dd6fb904 Integrated `HTMLFormFiller` filter initially presented as a [wiki:FormFilling#Usingatemplatefilter recipe]. cmlenz parents: 230 diff changeset	40 </form>
7f24dd6fb904 Integrated `HTMLFormFiller` filter initially presented as a [wiki:FormFilling#Usingatemplatefilter recipe]. cmlenz parents: 230 diff changeset	41 """
7f24dd6fb904 Integrated `HTMLFormFiller` filter initially presented as a [wiki:FormFilling#Usingatemplatefilter recipe]. cmlenz parents: 230 diff changeset	42 # TODO: only select the first radio button, and the first select option
7f24dd6fb904 Integrated `HTMLFormFiller` filter initially presented as a [wiki:FormFilling#Usingatemplatefilter recipe]. cmlenz parents: 230 diff changeset	43 # (if not in a multiple-select)
7f24dd6fb904 Integrated `HTMLFormFiller` filter initially presented as a [wiki:FormFilling#Usingatemplatefilter recipe]. cmlenz parents: 230 diff changeset	44 # TODO: only apply to elements in the XHTML namespace (or no namespace)?
7f24dd6fb904 Integrated `HTMLFormFiller` filter initially presented as a [wiki:FormFilling#Usingatemplatefilter recipe]. cmlenz parents: 230 diff changeset	45
7f24dd6fb904 Integrated `HTMLFormFiller` filter initially presented as a [wiki:FormFilling#Usingatemplatefilter recipe]. cmlenz parents: 230 diff changeset	46 def __init__(self, name=None, id=None, data=None):
7f24dd6fb904 Integrated `HTMLFormFiller` filter initially presented as a [wiki:FormFilling#Usingatemplatefilter recipe]. cmlenz parents: 230 diff changeset	47 """Create the filter.
7f24dd6fb904 Integrated `HTMLFormFiller` filter initially presented as a [wiki:FormFilling#Usingatemplatefilter recipe]. cmlenz parents: 230 diff changeset	48
425 5b248708bbed Try to use proper reStructuredText for docstrings throughout. cmlenz parents: 415 diff changeset	49 :param name: The name of the form that should be populated. If this
5b248708bbed Try to use proper reStructuredText for docstrings throughout. cmlenz parents: 415 diff changeset	50 parameter is given, only forms where the ``name`` attribute
5b248708bbed Try to use proper reStructuredText for docstrings throughout. cmlenz parents: 415 diff changeset	51 value matches the parameter are processed.
5b248708bbed Try to use proper reStructuredText for docstrings throughout. cmlenz parents: 415 diff changeset	52 :param id: The ID of the form that should be populated. If this
5b248708bbed Try to use proper reStructuredText for docstrings throughout. cmlenz parents: 415 diff changeset	53 parameter is given, only forms where the ``id`` attribute
5b248708bbed Try to use proper reStructuredText for docstrings throughout. cmlenz parents: 415 diff changeset	54 value matches the parameter are processed.
5b248708bbed Try to use proper reStructuredText for docstrings throughout. cmlenz parents: 415 diff changeset	55 :param data: The dictionary of form values, where the keys are the names
5b248708bbed Try to use proper reStructuredText for docstrings throughout. cmlenz parents: 415 diff changeset	56 of the form fields, and the values are the values to fill
5b248708bbed Try to use proper reStructuredText for docstrings throughout. cmlenz parents: 415 diff changeset	57 in.
275 7f24dd6fb904 Integrated `HTMLFormFiller` filter initially presented as a [wiki:FormFilling#Usingatemplatefilter recipe]. cmlenz parents: 230 diff changeset	58 """
7f24dd6fb904 Integrated `HTMLFormFiller` filter initially presented as a [wiki:FormFilling#Usingatemplatefilter recipe]. cmlenz parents: 230 diff changeset	59 self.name = name
7f24dd6fb904 Integrated `HTMLFormFiller` filter initially presented as a [wiki:FormFilling#Usingatemplatefilter recipe]. cmlenz parents: 230 diff changeset	60 self.id = id
7f24dd6fb904 Integrated `HTMLFormFiller` filter initially presented as a [wiki:FormFilling#Usingatemplatefilter recipe]. cmlenz parents: 230 diff changeset	61 if data is None:
7f24dd6fb904 Integrated `HTMLFormFiller` filter initially presented as a [wiki:FormFilling#Usingatemplatefilter recipe]. cmlenz parents: 230 diff changeset	62 data = {}
7f24dd6fb904 Integrated `HTMLFormFiller` filter initially presented as a [wiki:FormFilling#Usingatemplatefilter recipe]. cmlenz parents: 230 diff changeset	63 self.data = data
7f24dd6fb904 Integrated `HTMLFormFiller` filter initially presented as a [wiki:FormFilling#Usingatemplatefilter recipe]. cmlenz parents: 230 diff changeset	64
7f24dd6fb904 Integrated `HTMLFormFiller` filter initially presented as a [wiki:FormFilling#Usingatemplatefilter recipe]. cmlenz parents: 230 diff changeset	65 def __call__(self, stream, ctxt=None):
277 c9fd81953169 The `HTMLSanitizer` now lets you override the default set of tag and attribute names that are considered safe. cmlenz parents: 275 diff changeset	66 """Apply the filter to the given stream.
c9fd81953169 The `HTMLSanitizer` now lets you override the default set of tag and attribute names that are considered safe. cmlenz parents: 275 diff changeset	67
425 5b248708bbed Try to use proper reStructuredText for docstrings throughout. cmlenz parents: 415 diff changeset	68 :param stream: the markup event stream to filter
5b248708bbed Try to use proper reStructuredText for docstrings throughout. cmlenz parents: 415 diff changeset	69 :param ctxt: the template context (unused)
277 c9fd81953169 The `HTMLSanitizer` now lets you override the default set of tag and attribute names that are considered safe. cmlenz parents: 275 diff changeset	70 """
275 7f24dd6fb904 Integrated `HTMLFormFiller` filter initially presented as a [wiki:FormFilling#Usingatemplatefilter recipe]. cmlenz parents: 230 diff changeset	71 in_form = in_select = in_option = in_textarea = False
7f24dd6fb904 Integrated `HTMLFormFiller` filter initially presented as a [wiki:FormFilling#Usingatemplatefilter recipe]. cmlenz parents: 230 diff changeset	72 select_value = option_value = textarea_value = None
7f24dd6fb904 Integrated `HTMLFormFiller` filter initially presented as a [wiki:FormFilling#Usingatemplatefilter recipe]. cmlenz parents: 230 diff changeset	73 option_start = option_text = None
7f24dd6fb904 Integrated `HTMLFormFiller` filter initially presented as a [wiki:FormFilling#Usingatemplatefilter recipe]. cmlenz parents: 230 diff changeset	74
7f24dd6fb904 Integrated `HTMLFormFiller` filter initially presented as a [wiki:FormFilling#Usingatemplatefilter recipe]. cmlenz parents: 230 diff changeset	75 for kind, data, pos in stream:
7f24dd6fb904 Integrated `HTMLFormFiller` filter initially presented as a [wiki:FormFilling#Usingatemplatefilter recipe]. cmlenz parents: 230 diff changeset	76
7f24dd6fb904 Integrated `HTMLFormFiller` filter initially presented as a [wiki:FormFilling#Usingatemplatefilter recipe]. cmlenz parents: 230 diff changeset	77 if kind is START:
345 8e75b83d3e71 Make `Attrs` instances immutable. cmlenz parents: 305 diff changeset	78 tag, attrs = data
275 7f24dd6fb904 Integrated `HTMLFormFiller` filter initially presented as a [wiki:FormFilling#Usingatemplatefilter recipe]. cmlenz parents: 230 diff changeset	79 tagname = tag.localname
7f24dd6fb904 Integrated `HTMLFormFiller` filter initially presented as a [wiki:FormFilling#Usingatemplatefilter recipe]. cmlenz parents: 230 diff changeset	80
7f24dd6fb904 Integrated `HTMLFormFiller` filter initially presented as a [wiki:FormFilling#Usingatemplatefilter recipe]. cmlenz parents: 230 diff changeset	81 if tagname == 'form' and (
345 8e75b83d3e71 Make `Attrs` instances immutable. cmlenz parents: 305 diff changeset	82 self.name and attrs.get('name') == self.name or
8e75b83d3e71 Make `Attrs` instances immutable. cmlenz parents: 305 diff changeset	83 self.id and attrs.get('id') == self.id or
275 7f24dd6fb904 Integrated `HTMLFormFiller` filter initially presented as a [wiki:FormFilling#Usingatemplatefilter recipe]. cmlenz parents: 230 diff changeset	84 not (self.id or self.name)):
7f24dd6fb904 Integrated `HTMLFormFiller` filter initially presented as a [wiki:FormFilling#Usingatemplatefilter recipe]. cmlenz parents: 230 diff changeset	85 in_form = True
7f24dd6fb904 Integrated `HTMLFormFiller` filter initially presented as a [wiki:FormFilling#Usingatemplatefilter recipe]. cmlenz parents: 230 diff changeset	86
7f24dd6fb904 Integrated `HTMLFormFiller` filter initially presented as a [wiki:FormFilling#Usingatemplatefilter recipe]. cmlenz parents: 230 diff changeset	87 elif in_form:
7f24dd6fb904 Integrated `HTMLFormFiller` filter initially presented as a [wiki:FormFilling#Usingatemplatefilter recipe]. cmlenz parents: 230 diff changeset	88 if tagname == 'input':
345 8e75b83d3e71 Make `Attrs` instances immutable. cmlenz parents: 305 diff changeset	89 type = attrs.get('type')
275 7f24dd6fb904 Integrated `HTMLFormFiller` filter initially presented as a [wiki:FormFilling#Usingatemplatefilter recipe]. cmlenz parents: 230 diff changeset	90 if type in ('checkbox', 'radio'):
345 8e75b83d3e71 Make `Attrs` instances immutable. cmlenz parents: 305 diff changeset	91 name = attrs.get('name')
275 7f24dd6fb904 Integrated `HTMLFormFiller` filter initially presented as a [wiki:FormFilling#Usingatemplatefilter recipe]. cmlenz parents: 230 diff changeset	92 if name:
7f24dd6fb904 Integrated `HTMLFormFiller` filter initially presented as a [wiki:FormFilling#Usingatemplatefilter recipe]. cmlenz parents: 230 diff changeset	93 value = self.data.get(name)
345 8e75b83d3e71 Make `Attrs` instances immutable. cmlenz parents: 305 diff changeset	94 declval = attrs.get('value')
275 7f24dd6fb904 Integrated `HTMLFormFiller` filter initially presented as a [wiki:FormFilling#Usingatemplatefilter recipe]. cmlenz parents: 230 diff changeset	95 checked = False
7f24dd6fb904 Integrated `HTMLFormFiller` filter initially presented as a [wiki:FormFilling#Usingatemplatefilter recipe]. cmlenz parents: 230 diff changeset	96 if isinstance(value, (list, tuple)):
7f24dd6fb904 Integrated `HTMLFormFiller` filter initially presented as a [wiki:FormFilling#Usingatemplatefilter recipe]. cmlenz parents: 230 diff changeset	97 if declval:
415 c267061c961f `HTMLFormFiller` now correctly deals with non-string values in the data dictionary for select/checkbox/radio controls. cmlenz parents: 408 diff changeset	98 checked = declval in [str(v) for v
c267061c961f `HTMLFormFiller` now correctly deals with non-string values in the data dictionary for select/checkbox/radio controls. cmlenz parents: 408 diff changeset	99 in value]
275 7f24dd6fb904 Integrated `HTMLFormFiller` filter initially presented as a [wiki:FormFilling#Usingatemplatefilter recipe]. cmlenz parents: 230 diff changeset	100 else:
7f24dd6fb904 Integrated `HTMLFormFiller` filter initially presented as a [wiki:FormFilling#Usingatemplatefilter recipe]. cmlenz parents: 230 diff changeset	101 checked = bool(filter(None, value))
7f24dd6fb904 Integrated `HTMLFormFiller` filter initially presented as a [wiki:FormFilling#Usingatemplatefilter recipe]. cmlenz parents: 230 diff changeset	102 else:
7f24dd6fb904 Integrated `HTMLFormFiller` filter initially presented as a [wiki:FormFilling#Usingatemplatefilter recipe]. cmlenz parents: 230 diff changeset	103 if declval:
415 c267061c961f `HTMLFormFiller` now correctly deals with non-string values in the data dictionary for select/checkbox/radio controls. cmlenz parents: 408 diff changeset	104 checked = declval == str(value)
275 7f24dd6fb904 Integrated `HTMLFormFiller` filter initially presented as a [wiki:FormFilling#Usingatemplatefilter recipe]. cmlenz parents: 230 diff changeset	105 elif type == 'checkbox':
7f24dd6fb904 Integrated `HTMLFormFiller` filter initially presented as a [wiki:FormFilling#Usingatemplatefilter recipe]. cmlenz parents: 230 diff changeset	106 checked = bool(value)
7f24dd6fb904 Integrated `HTMLFormFiller` filter initially presented as a [wiki:FormFilling#Usingatemplatefilter recipe]. cmlenz parents: 230 diff changeset	107 if checked:
403 32b283e1d310 Remove some magic/overhead from `Attrs` creation and manipulation by not automatically wrapping attribute names in `QName`. cmlenz parents: 363 diff changeset	108 attrs \|= [(QName('checked'), 'checked')]
345 8e75b83d3e71 Make `Attrs` instances immutable. cmlenz parents: 305 diff changeset	109 elif 'checked' in attrs:
8e75b83d3e71 Make `Attrs` instances immutable. cmlenz parents: 305 diff changeset	110 attrs -= 'checked'
275 7f24dd6fb904 Integrated `HTMLFormFiller` filter initially presented as a [wiki:FormFilling#Usingatemplatefilter recipe]. cmlenz parents: 230 diff changeset	111 elif type in (None, 'hidden', 'text'):
345 8e75b83d3e71 Make `Attrs` instances immutable. cmlenz parents: 305 diff changeset	112 name = attrs.get('name')
275 7f24dd6fb904 Integrated `HTMLFormFiller` filter initially presented as a [wiki:FormFilling#Usingatemplatefilter recipe]. cmlenz parents: 230 diff changeset	113 if name:
7f24dd6fb904 Integrated `HTMLFormFiller` filter initially presented as a [wiki:FormFilling#Usingatemplatefilter recipe]. cmlenz parents: 230 diff changeset	114 value = self.data.get(name)
7f24dd6fb904 Integrated `HTMLFormFiller` filter initially presented as a [wiki:FormFilling#Usingatemplatefilter recipe]. cmlenz parents: 230 diff changeset	115 if isinstance(value, (list, tuple)):
7f24dd6fb904 Integrated `HTMLFormFiller` filter initially presented as a [wiki:FormFilling#Usingatemplatefilter recipe]. cmlenz parents: 230 diff changeset	116 value = value[0]
7f24dd6fb904 Integrated `HTMLFormFiller` filter initially presented as a [wiki:FormFilling#Usingatemplatefilter recipe]. cmlenz parents: 230 diff changeset	117 if value is not None:
403 32b283e1d310 Remove some magic/overhead from `Attrs` creation and manipulation by not automatically wrapping attribute names in `QName`. cmlenz parents: 363 diff changeset	118 attrs \|= [(QName('value'), unicode(value))]
275 7f24dd6fb904 Integrated `HTMLFormFiller` filter initially presented as a [wiki:FormFilling#Usingatemplatefilter recipe]. cmlenz parents: 230 diff changeset	119 elif tagname == 'select':
345 8e75b83d3e71 Make `Attrs` instances immutable. cmlenz parents: 305 diff changeset	120 name = attrs.get('name')
275 7f24dd6fb904 Integrated `HTMLFormFiller` filter initially presented as a [wiki:FormFilling#Usingatemplatefilter recipe]. cmlenz parents: 230 diff changeset	121 select_value = self.data.get(name)
7f24dd6fb904 Integrated `HTMLFormFiller` filter initially presented as a [wiki:FormFilling#Usingatemplatefilter recipe]. cmlenz parents: 230 diff changeset	122 in_select = True
7f24dd6fb904 Integrated `HTMLFormFiller` filter initially presented as a [wiki:FormFilling#Usingatemplatefilter recipe]. cmlenz parents: 230 diff changeset	123 elif tagname == 'textarea':
345 8e75b83d3e71 Make `Attrs` instances immutable. cmlenz parents: 305 diff changeset	124 name = attrs.get('name')
275 7f24dd6fb904 Integrated `HTMLFormFiller` filter initially presented as a [wiki:FormFilling#Usingatemplatefilter recipe]. cmlenz parents: 230 diff changeset	125 textarea_value = self.data.get(name)
7f24dd6fb904 Integrated `HTMLFormFiller` filter initially presented as a [wiki:FormFilling#Usingatemplatefilter recipe]. cmlenz parents: 230 diff changeset	126 if isinstance(textarea_value, (list, tuple)):
7f24dd6fb904 Integrated `HTMLFormFiller` filter initially presented as a [wiki:FormFilling#Usingatemplatefilter recipe]. cmlenz parents: 230 diff changeset	127 textarea_value = textarea_value[0]
7f24dd6fb904 Integrated `HTMLFormFiller` filter initially presented as a [wiki:FormFilling#Usingatemplatefilter recipe]. cmlenz parents: 230 diff changeset	128 in_textarea = True
7f24dd6fb904 Integrated `HTMLFormFiller` filter initially presented as a [wiki:FormFilling#Usingatemplatefilter recipe]. cmlenz parents: 230 diff changeset	129 elif in_select and tagname == 'option':
7f24dd6fb904 Integrated `HTMLFormFiller` filter initially presented as a [wiki:FormFilling#Usingatemplatefilter recipe]. cmlenz parents: 230 diff changeset	130 option_start = kind, data, pos
345 8e75b83d3e71 Make `Attrs` instances immutable. cmlenz parents: 305 diff changeset	131 option_value = attrs.get('value')
275 7f24dd6fb904 Integrated `HTMLFormFiller` filter initially presented as a [wiki:FormFilling#Usingatemplatefilter recipe]. cmlenz parents: 230 diff changeset	132 in_option = True
7f24dd6fb904 Integrated `HTMLFormFiller` filter initially presented as a [wiki:FormFilling#Usingatemplatefilter recipe]. cmlenz parents: 230 diff changeset	133 continue
345 8e75b83d3e71 Make `Attrs` instances immutable. cmlenz parents: 305 diff changeset	134 yield kind, (tag, attrs), pos
8e75b83d3e71 Make `Attrs` instances immutable. cmlenz parents: 305 diff changeset	135
275 7f24dd6fb904 Integrated `HTMLFormFiller` filter initially presented as a [wiki:FormFilling#Usingatemplatefilter recipe]. cmlenz parents: 230 diff changeset	136
7f24dd6fb904 Integrated `HTMLFormFiller` filter initially presented as a [wiki:FormFilling#Usingatemplatefilter recipe]. cmlenz parents: 230 diff changeset	137 elif in_form and kind is TEXT:
7f24dd6fb904 Integrated `HTMLFormFiller` filter initially presented as a [wiki:FormFilling#Usingatemplatefilter recipe]. cmlenz parents: 230 diff changeset	138 if in_select and in_option:
7f24dd6fb904 Integrated `HTMLFormFiller` filter initially presented as a [wiki:FormFilling#Usingatemplatefilter recipe]. cmlenz parents: 230 diff changeset	139 if option_value is None:
7f24dd6fb904 Integrated `HTMLFormFiller` filter initially presented as a [wiki:FormFilling#Usingatemplatefilter recipe]. cmlenz parents: 230 diff changeset	140 option_value = data
7f24dd6fb904 Integrated `HTMLFormFiller` filter initially presented as a [wiki:FormFilling#Usingatemplatefilter recipe]. cmlenz parents: 230 diff changeset	141 option_text = kind, data, pos
7f24dd6fb904 Integrated `HTMLFormFiller` filter initially presented as a [wiki:FormFilling#Usingatemplatefilter recipe]. cmlenz parents: 230 diff changeset	142 continue
7f24dd6fb904 Integrated `HTMLFormFiller` filter initially presented as a [wiki:FormFilling#Usingatemplatefilter recipe]. cmlenz parents: 230 diff changeset	143 elif in_textarea:
7f24dd6fb904 Integrated `HTMLFormFiller` filter initially presented as a [wiki:FormFilling#Usingatemplatefilter recipe]. cmlenz parents: 230 diff changeset	144 continue
345 8e75b83d3e71 Make `Attrs` instances immutable. cmlenz parents: 305 diff changeset	145 yield kind, data, pos
275 7f24dd6fb904 Integrated `HTMLFormFiller` filter initially presented as a [wiki:FormFilling#Usingatemplatefilter recipe]. cmlenz parents: 230 diff changeset	146
7f24dd6fb904 Integrated `HTMLFormFiller` filter initially presented as a [wiki:FormFilling#Usingatemplatefilter recipe]. cmlenz parents: 230 diff changeset	147 elif in_form and kind is END:
7f24dd6fb904 Integrated `HTMLFormFiller` filter initially presented as a [wiki:FormFilling#Usingatemplatefilter recipe]. cmlenz parents: 230 diff changeset	148 tagname = data.localname
7f24dd6fb904 Integrated `HTMLFormFiller` filter initially presented as a [wiki:FormFilling#Usingatemplatefilter recipe]. cmlenz parents: 230 diff changeset	149 if tagname == 'form':
7f24dd6fb904 Integrated `HTMLFormFiller` filter initially presented as a [wiki:FormFilling#Usingatemplatefilter recipe]. cmlenz parents: 230 diff changeset	150 in_form = False
7f24dd6fb904 Integrated `HTMLFormFiller` filter initially presented as a [wiki:FormFilling#Usingatemplatefilter recipe]. cmlenz parents: 230 diff changeset	151 elif tagname == 'select':
7f24dd6fb904 Integrated `HTMLFormFiller` filter initially presented as a [wiki:FormFilling#Usingatemplatefilter recipe]. cmlenz parents: 230 diff changeset	152 in_select = False
7f24dd6fb904 Integrated `HTMLFormFiller` filter initially presented as a [wiki:FormFilling#Usingatemplatefilter recipe]. cmlenz parents: 230 diff changeset	153 select_value = None
7f24dd6fb904 Integrated `HTMLFormFiller` filter initially presented as a [wiki:FormFilling#Usingatemplatefilter recipe]. cmlenz parents: 230 diff changeset	154 elif in_select and tagname == 'option':
7f24dd6fb904 Integrated `HTMLFormFiller` filter initially presented as a [wiki:FormFilling#Usingatemplatefilter recipe]. cmlenz parents: 230 diff changeset	155 if isinstance(select_value, (tuple, list)):
415 c267061c961f `HTMLFormFiller` now correctly deals with non-string values in the data dictionary for select/checkbox/radio controls. cmlenz parents: 408 diff changeset	156 selected = option_value in [str(v) for v
c267061c961f `HTMLFormFiller` now correctly deals with non-string values in the data dictionary for select/checkbox/radio controls. cmlenz parents: 408 diff changeset	157 in select_value]
275 7f24dd6fb904 Integrated `HTMLFormFiller` filter initially presented as a [wiki:FormFilling#Usingatemplatefilter recipe]. cmlenz parents: 230 diff changeset	158 else:
415 c267061c961f `HTMLFormFiller` now correctly deals with non-string values in the data dictionary for select/checkbox/radio controls. cmlenz parents: 408 diff changeset	159 selected = option_value == str(select_value)
345 8e75b83d3e71 Make `Attrs` instances immutable. cmlenz parents: 305 diff changeset	160 okind, (tag, attrs), opos = option_start
275 7f24dd6fb904 Integrated `HTMLFormFiller` filter initially presented as a [wiki:FormFilling#Usingatemplatefilter recipe]. cmlenz parents: 230 diff changeset	161 if selected:
403 32b283e1d310 Remove some magic/overhead from `Attrs` creation and manipulation by not automatically wrapping attribute names in `QName`. cmlenz parents: 363 diff changeset	162 attrs \|= [(QName('selected'), 'selected')]
345 8e75b83d3e71 Make `Attrs` instances immutable. cmlenz parents: 305 diff changeset	163 elif 'selected' in attrs:
8e75b83d3e71 Make `Attrs` instances immutable. cmlenz parents: 305 diff changeset	164 attrs -= 'selected'
8e75b83d3e71 Make `Attrs` instances immutable. cmlenz parents: 305 diff changeset	165 yield okind, (tag, attrs), opos
275 7f24dd6fb904 Integrated `HTMLFormFiller` filter initially presented as a [wiki:FormFilling#Usingatemplatefilter recipe]. cmlenz parents: 230 diff changeset	166 if option_text:
7f24dd6fb904 Integrated `HTMLFormFiller` filter initially presented as a [wiki:FormFilling#Usingatemplatefilter recipe]. cmlenz parents: 230 diff changeset	167 yield option_text
7f24dd6fb904 Integrated `HTMLFormFiller` filter initially presented as a [wiki:FormFilling#Usingatemplatefilter recipe]. cmlenz parents: 230 diff changeset	168 in_option = False
7f24dd6fb904 Integrated `HTMLFormFiller` filter initially presented as a [wiki:FormFilling#Usingatemplatefilter recipe]. cmlenz parents: 230 diff changeset	169 option_start = option_text = option_value = None
7f24dd6fb904 Integrated `HTMLFormFiller` filter initially presented as a [wiki:FormFilling#Usingatemplatefilter recipe]. cmlenz parents: 230 diff changeset	170 elif tagname == 'textarea':
7f24dd6fb904 Integrated `HTMLFormFiller` filter initially presented as a [wiki:FormFilling#Usingatemplatefilter recipe]. cmlenz parents: 230 diff changeset	171 if textarea_value:
7f24dd6fb904 Integrated `HTMLFormFiller` filter initially presented as a [wiki:FormFilling#Usingatemplatefilter recipe]. cmlenz parents: 230 diff changeset	172 yield TEXT, unicode(textarea_value), pos
7f24dd6fb904 Integrated `HTMLFormFiller` filter initially presented as a [wiki:FormFilling#Usingatemplatefilter recipe]. cmlenz parents: 230 diff changeset	173 in_textarea = False
345 8e75b83d3e71 Make `Attrs` instances immutable. cmlenz parents: 305 diff changeset	174 yield kind, data, pos
275 7f24dd6fb904 Integrated `HTMLFormFiller` filter initially presented as a [wiki:FormFilling#Usingatemplatefilter recipe]. cmlenz parents: 230 diff changeset	175
345 8e75b83d3e71 Make `Attrs` instances immutable. cmlenz parents: 305 diff changeset	176 else:
8e75b83d3e71 Make `Attrs` instances immutable. cmlenz parents: 305 diff changeset	177 yield kind, data, pos
123 93bbdcf9428b Fix for #18: whitespace in space-sensitive elements such as `<pre>` and `<textarea>` is now preserved. cmlenz parents: 113 diff changeset	178
93bbdcf9428b Fix for #18: whitespace in space-sensitive elements such as `<pre>` and `<textarea>` is now preserved. cmlenz parents: 113 diff changeset	179
93bbdcf9428b Fix for #18: whitespace in space-sensitive elements such as `<pre>` and `<textarea>` is now preserved. cmlenz parents: 113 diff changeset	180 class HTMLSanitizer(object):
93bbdcf9428b Fix for #18: whitespace in space-sensitive elements such as `<pre>` and `<textarea>` is now preserved. cmlenz parents: 113 diff changeset	181 """A filter that removes potentially dangerous HTML tags and attributes
93bbdcf9428b Fix for #18: whitespace in space-sensitive elements such as `<pre>` and `<textarea>` is now preserved. cmlenz parents: 113 diff changeset	182 from the stream.
93bbdcf9428b Fix for #18: whitespace in space-sensitive elements such as `<pre>` and `<textarea>` is now preserved. cmlenz parents: 113 diff changeset	183 """
93bbdcf9428b Fix for #18: whitespace in space-sensitive elements such as `<pre>` and `<textarea>` is now preserved. cmlenz parents: 113 diff changeset	184
277 c9fd81953169 The `HTMLSanitizer` now lets you override the default set of tag and attribute names that are considered safe. cmlenz parents: 275 diff changeset	185 SAFE_TAGS = frozenset(['a', 'abbr', 'acronym', 'address', 'area', 'b',
123 93bbdcf9428b Fix for #18: whitespace in space-sensitive elements such as `<pre>` and `<textarea>` is now preserved. cmlenz parents: 113 diff changeset	186 'big', 'blockquote', 'br', 'button', 'caption', 'center', 'cite',
93bbdcf9428b Fix for #18: whitespace in space-sensitive elements such as `<pre>` and `<textarea>` is now preserved. cmlenz parents: 113 diff changeset	187 'code', 'col', 'colgroup', 'dd', 'del', 'dfn', 'dir', 'div', 'dl', 'dt',
93bbdcf9428b Fix for #18: whitespace in space-sensitive elements such as `<pre>` and `<textarea>` is now preserved. cmlenz parents: 113 diff changeset	188 'em', 'fieldset', 'font', 'form', 'h1', 'h2', 'h3', 'h4', 'h5', 'h6',
93bbdcf9428b Fix for #18: whitespace in space-sensitive elements such as `<pre>` and `<textarea>` is now preserved. cmlenz parents: 113 diff changeset	189 'hr', 'i', 'img', 'input', 'ins', 'kbd', 'label', 'legend', 'li', 'map',
93bbdcf9428b Fix for #18: whitespace in space-sensitive elements such as `<pre>` and `<textarea>` is now preserved. cmlenz parents: 113 diff changeset	190 'menu', 'ol', 'optgroup', 'option', 'p', 'pre', 'q', 's', 'samp',
93bbdcf9428b Fix for #18: whitespace in space-sensitive elements such as `<pre>` and `<textarea>` is now preserved. cmlenz parents: 113 diff changeset	191 'select', 'small', 'span', 'strike', 'strong', 'sub', 'sup', 'table',
93bbdcf9428b Fix for #18: whitespace in space-sensitive elements such as `<pre>` and `<textarea>` is now preserved. cmlenz parents: 113 diff changeset	192 'tbody', 'td', 'textarea', 'tfoot', 'th', 'thead', 'tr', 'tt', 'u',
93bbdcf9428b Fix for #18: whitespace in space-sensitive elements such as `<pre>` and `<textarea>` is now preserved. cmlenz parents: 113 diff changeset	193 'ul', 'var'])
93bbdcf9428b Fix for #18: whitespace in space-sensitive elements such as `<pre>` and `<textarea>` is now preserved. cmlenz parents: 113 diff changeset	194
277 c9fd81953169 The `HTMLSanitizer` now lets you override the default set of tag and attribute names that are considered safe. cmlenz parents: 275 diff changeset	195 SAFE_ATTRS = frozenset(['abbr', 'accept', 'accept-charset', 'accesskey',
123 93bbdcf9428b Fix for #18: whitespace in space-sensitive elements such as `<pre>` and `<textarea>` is now preserved. cmlenz parents: 113 diff changeset	196 'action', 'align', 'alt', 'axis', 'bgcolor', 'border', 'cellpadding',
93bbdcf9428b Fix for #18: whitespace in space-sensitive elements such as `<pre>` and `<textarea>` is now preserved. cmlenz parents: 113 diff changeset	197 'cellspacing', 'char', 'charoff', 'charset', 'checked', 'cite', 'class',
93bbdcf9428b Fix for #18: whitespace in space-sensitive elements such as `<pre>` and `<textarea>` is now preserved. cmlenz parents: 113 diff changeset	198 'clear', 'cols', 'colspan', 'color', 'compact', 'coords', 'datetime',
93bbdcf9428b Fix for #18: whitespace in space-sensitive elements such as `<pre>` and `<textarea>` is now preserved. cmlenz parents: 113 diff changeset	199 'dir', 'disabled', 'enctype', 'for', 'frame', 'headers', 'height',
93bbdcf9428b Fix for #18: whitespace in space-sensitive elements such as `<pre>` and `<textarea>` is now preserved. cmlenz parents: 113 diff changeset	200 'href', 'hreflang', 'hspace', 'id', 'ismap', 'label', 'lang',
93bbdcf9428b Fix for #18: whitespace in space-sensitive elements such as `<pre>` and `<textarea>` is now preserved. cmlenz parents: 113 diff changeset	201 'longdesc', 'maxlength', 'media', 'method', 'multiple', 'name',
93bbdcf9428b Fix for #18: whitespace in space-sensitive elements such as `<pre>` and `<textarea>` is now preserved. cmlenz parents: 113 diff changeset	202 'nohref', 'noshade', 'nowrap', 'prompt', 'readonly', 'rel', 'rev',
93bbdcf9428b Fix for #18: whitespace in space-sensitive elements such as `<pre>` and `<textarea>` is now preserved. cmlenz parents: 113 diff changeset	203 'rows', 'rowspan', 'rules', 'scope', 'selected', 'shape', 'size',
93bbdcf9428b Fix for #18: whitespace in space-sensitive elements such as `<pre>` and `<textarea>` is now preserved. cmlenz parents: 113 diff changeset	204 'span', 'src', 'start', 'style', 'summary', 'tabindex', 'target',
93bbdcf9428b Fix for #18: whitespace in space-sensitive elements such as `<pre>` and `<textarea>` is now preserved. cmlenz parents: 113 diff changeset	205 'title', 'type', 'usemap', 'valign', 'value', 'vspace', 'width'])
277 c9fd81953169 The `HTMLSanitizer` now lets you override the default set of tag and attribute names that are considered safe. cmlenz parents: 275 diff changeset	206
c9fd81953169 The `HTMLSanitizer` now lets you override the default set of tag and attribute names that are considered safe. cmlenz parents: 275 diff changeset	207 SAFE_SCHEMES = frozenset(['file', 'ftp', 'http', 'https', 'mailto', None])
c9fd81953169 The `HTMLSanitizer` now lets you override the default set of tag and attribute names that are considered safe. cmlenz parents: 275 diff changeset	208
c9fd81953169 The `HTMLSanitizer` now lets you override the default set of tag and attribute names that are considered safe. cmlenz parents: 275 diff changeset	209 URI_ATTRS = frozenset(['action', 'background', 'dynsrc', 'href', 'lowsrc',
123 93bbdcf9428b Fix for #18: whitespace in space-sensitive elements such as `<pre>` and `<textarea>` is now preserved. cmlenz parents: 113 diff changeset	210 'src'])
277 c9fd81953169 The `HTMLSanitizer` now lets you override the default set of tag and attribute names that are considered safe. cmlenz parents: 275 diff changeset	211
c9fd81953169 The `HTMLSanitizer` now lets you override the default set of tag and attribute names that are considered safe. cmlenz parents: 275 diff changeset	212 def __init__(self, safe_tags=SAFE_TAGS, safe_attrs=SAFE_ATTRS,
c9fd81953169 The `HTMLSanitizer` now lets you override the default set of tag and attribute names that are considered safe. cmlenz parents: 275 diff changeset	213 safe_schemes=SAFE_SCHEMES, uri_attrs=URI_ATTRS):
c9fd81953169 The `HTMLSanitizer` now lets you override the default set of tag and attribute names that are considered safe. cmlenz parents: 275 diff changeset	214 """Create the sanitizer.
c9fd81953169 The `HTMLSanitizer` now lets you override the default set of tag and attribute names that are considered safe. cmlenz parents: 275 diff changeset	215
c9fd81953169 The `HTMLSanitizer` now lets you override the default set of tag and attribute names that are considered safe. cmlenz parents: 275 diff changeset	216 The exact set of allowed elements and attributes can be configured.
c9fd81953169 The `HTMLSanitizer` now lets you override the default set of tag and attribute names that are considered safe. cmlenz parents: 275 diff changeset	217
425 5b248708bbed Try to use proper reStructuredText for docstrings throughout. cmlenz parents: 415 diff changeset	218 :param safe_tags: a set of tag names that are considered safe
5b248708bbed Try to use proper reStructuredText for docstrings throughout. cmlenz parents: 415 diff changeset	219 :param safe_attrs: a set of attribute names that are considered safe
5b248708bbed Try to use proper reStructuredText for docstrings throughout. cmlenz parents: 415 diff changeset	220 :param safe_schemes: a set of URI schemes that are considered safe
5b248708bbed Try to use proper reStructuredText for docstrings throughout. cmlenz parents: 415 diff changeset	221 :param uri_attrs: a set of names of attributes that contain URIs
277 c9fd81953169 The `HTMLSanitizer` now lets you override the default set of tag and attribute names that are considered safe. cmlenz parents: 275 diff changeset	222 """
c9fd81953169 The `HTMLSanitizer` now lets you override the default set of tag and attribute names that are considered safe. cmlenz parents: 275 diff changeset	223 self.safe_tags = safe_tags
c9fd81953169 The `HTMLSanitizer` now lets you override the default set of tag and attribute names that are considered safe. cmlenz parents: 275 diff changeset	224 self.safe_attrs = safe_attrs
c9fd81953169 The `HTMLSanitizer` now lets you override the default set of tag and attribute names that are considered safe. cmlenz parents: 275 diff changeset	225 self.uri_attrs = uri_attrs
c9fd81953169 The `HTMLSanitizer` now lets you override the default set of tag and attribute names that are considered safe. cmlenz parents: 275 diff changeset	226 self.safe_schemes = safe_schemes
123 93bbdcf9428b Fix for #18: whitespace in space-sensitive elements such as `<pre>` and `<textarea>` is now preserved. cmlenz parents: 113 diff changeset	227
93bbdcf9428b Fix for #18: whitespace in space-sensitive elements such as `<pre>` and `<textarea>` is now preserved. cmlenz parents: 113 diff changeset	228 def __call__(self, stream, ctxt=None):
277 c9fd81953169 The `HTMLSanitizer` now lets you override the default set of tag and attribute names that are considered safe. cmlenz parents: 275 diff changeset	229 """Apply the filter to the given stream.
c9fd81953169 The `HTMLSanitizer` now lets you override the default set of tag and attribute names that are considered safe. cmlenz parents: 275 diff changeset	230
425 5b248708bbed Try to use proper reStructuredText for docstrings throughout. cmlenz parents: 415 diff changeset	231 :param stream: the markup event stream to filter
5b248708bbed Try to use proper reStructuredText for docstrings throughout. cmlenz parents: 415 diff changeset	232 :param ctxt: the template context (unused)
277 c9fd81953169 The `HTMLSanitizer` now lets you override the default set of tag and attribute names that are considered safe. cmlenz parents: 275 diff changeset	233 """
123 93bbdcf9428b Fix for #18: whitespace in space-sensitive elements such as `<pre>` and `<textarea>` is now preserved. cmlenz parents: 113 diff changeset	234 waiting_for = None
93bbdcf9428b Fix for #18: whitespace in space-sensitive elements such as `<pre>` and `<textarea>` is now preserved. cmlenz parents: 113 diff changeset	235
277 c9fd81953169 The `HTMLSanitizer` now lets you override the default set of tag and attribute names that are considered safe. cmlenz parents: 275 diff changeset	236 def _get_scheme(href):
c9fd81953169 The `HTMLSanitizer` now lets you override the default set of tag and attribute names that are considered safe. cmlenz parents: 275 diff changeset	237 if ':' not in href:
c9fd81953169 The `HTMLSanitizer` now lets you override the default set of tag and attribute names that are considered safe. cmlenz parents: 275 diff changeset	238 return None
c9fd81953169 The `HTMLSanitizer` now lets you override the default set of tag and attribute names that are considered safe. cmlenz parents: 275 diff changeset	239 chars = [char for char in href.split(':', 1)[0] if char.isalnum()]
c9fd81953169 The `HTMLSanitizer` now lets you override the default set of tag and attribute names that are considered safe. cmlenz parents: 275 diff changeset	240 return ''.join(chars).lower()
c9fd81953169 The `HTMLSanitizer` now lets you override the default set of tag and attribute names that are considered safe. cmlenz parents: 275 diff changeset	241
123 93bbdcf9428b Fix for #18: whitespace in space-sensitive elements such as `<pre>` and `<textarea>` is now preserved. cmlenz parents: 113 diff changeset	242 for kind, data, pos in stream:
93bbdcf9428b Fix for #18: whitespace in space-sensitive elements such as `<pre>` and `<textarea>` is now preserved. cmlenz parents: 113 diff changeset	243 if kind is START:
93bbdcf9428b Fix for #18: whitespace in space-sensitive elements such as `<pre>` and `<textarea>` is now preserved. cmlenz parents: 113 diff changeset	244 if waiting_for:
93bbdcf9428b Fix for #18: whitespace in space-sensitive elements such as `<pre>` and `<textarea>` is now preserved. cmlenz parents: 113 diff changeset	245 continue
345 8e75b83d3e71 Make `Attrs` instances immutable. cmlenz parents: 305 diff changeset	246 tag, attrs = data
277 c9fd81953169 The `HTMLSanitizer` now lets you override the default set of tag and attribute names that are considered safe. cmlenz parents: 275 diff changeset	247 if tag not in self.safe_tags:
123 93bbdcf9428b Fix for #18: whitespace in space-sensitive elements such as `<pre>` and `<textarea>` is now preserved. cmlenz parents: 113 diff changeset	248 waiting_for = tag
93bbdcf9428b Fix for #18: whitespace in space-sensitive elements such as `<pre>` and `<textarea>` is now preserved. cmlenz parents: 113 diff changeset	249 continue
93bbdcf9428b Fix for #18: whitespace in space-sensitive elements such as `<pre>` and `<textarea>` is now preserved. cmlenz parents: 113 diff changeset	250
345 8e75b83d3e71 Make `Attrs` instances immutable. cmlenz parents: 305 diff changeset	251 new_attrs = []
8e75b83d3e71 Make `Attrs` instances immutable. cmlenz parents: 305 diff changeset	252 for attr, value in attrs:
123 93bbdcf9428b Fix for #18: whitespace in space-sensitive elements such as `<pre>` and `<textarea>` is now preserved. cmlenz parents: 113 diff changeset	253 value = stripentities(value)
277 c9fd81953169 The `HTMLSanitizer` now lets you override the default set of tag and attribute names that are considered safe. cmlenz parents: 275 diff changeset	254 if attr not in self.safe_attrs:
123 93bbdcf9428b Fix for #18: whitespace in space-sensitive elements such as `<pre>` and `<textarea>` is now preserved. cmlenz parents: 113 diff changeset	255 continue
277 c9fd81953169 The `HTMLSanitizer` now lets you override the default set of tag and attribute names that are considered safe. cmlenz parents: 275 diff changeset	256 elif attr in self.uri_attrs:
123 93bbdcf9428b Fix for #18: whitespace in space-sensitive elements such as `<pre>` and `<textarea>` is now preserved. cmlenz parents: 113 diff changeset	257 # Don't allow URI schemes such as "javascript:"
277 c9fd81953169 The `HTMLSanitizer` now lets you override the default set of tag and attribute names that are considered safe. cmlenz parents: 275 diff changeset	258 if _get_scheme(value) not in self.safe_schemes:
123 93bbdcf9428b Fix for #18: whitespace in space-sensitive elements such as `<pre>` and `<textarea>` is now preserved. cmlenz parents: 113 diff changeset	259 continue
93bbdcf9428b Fix for #18: whitespace in space-sensitive elements such as `<pre>` and `<textarea>` is now preserved. cmlenz parents: 113 diff changeset	260 elif attr == 'style':
93bbdcf9428b Fix for #18: whitespace in space-sensitive elements such as `<pre>` and `<textarea>` is now preserved. cmlenz parents: 113 diff changeset	261 # Remove dangerous CSS declarations from inline styles
93bbdcf9428b Fix for #18: whitespace in space-sensitive elements such as `<pre>` and `<textarea>` is now preserved. cmlenz parents: 113 diff changeset	262 decls = []
93bbdcf9428b Fix for #18: whitespace in space-sensitive elements such as `<pre>` and `<textarea>` is now preserved. cmlenz parents: 113 diff changeset	263 for decl in filter(None, value.split(';')):
93bbdcf9428b Fix for #18: whitespace in space-sensitive elements such as `<pre>` and `<textarea>` is now preserved. cmlenz parents: 113 diff changeset	264 is_evil = False
93bbdcf9428b Fix for #18: whitespace in space-sensitive elements such as `<pre>` and `<textarea>` is now preserved. cmlenz parents: 113 diff changeset	265 if 'expression' in decl:
93bbdcf9428b Fix for #18: whitespace in space-sensitive elements such as `<pre>` and `<textarea>` is now preserved. cmlenz parents: 113 diff changeset	266 is_evil = True
93bbdcf9428b Fix for #18: whitespace in space-sensitive elements such as `<pre>` and `<textarea>` is now preserved. cmlenz parents: 113 diff changeset	267 for m in re.finditer(r'url\s*\(([^)]+)', decl):
277 c9fd81953169 The `HTMLSanitizer` now lets you override the default set of tag and attribute names that are considered safe. cmlenz parents: 275 diff changeset	268 if _get_scheme(m.group(1)) not in self.safe_schemes:
123 93bbdcf9428b Fix for #18: whitespace in space-sensitive elements such as `<pre>` and `<textarea>` is now preserved. cmlenz parents: 113 diff changeset	269 is_evil = True
93bbdcf9428b Fix for #18: whitespace in space-sensitive elements such as `<pre>` and `<textarea>` is now preserved. cmlenz parents: 113 diff changeset	270 break
93bbdcf9428b Fix for #18: whitespace in space-sensitive elements such as `<pre>` and `<textarea>` is now preserved. cmlenz parents: 113 diff changeset	271 if not is_evil:
93bbdcf9428b Fix for #18: whitespace in space-sensitive elements such as `<pre>` and `<textarea>` is now preserved. cmlenz parents: 113 diff changeset	272 decls.append(decl.strip())
93bbdcf9428b Fix for #18: whitespace in space-sensitive elements such as `<pre>` and `<textarea>` is now preserved. cmlenz parents: 113 diff changeset	273 if not decls:
93bbdcf9428b Fix for #18: whitespace in space-sensitive elements such as `<pre>` and `<textarea>` is now preserved. cmlenz parents: 113 diff changeset	274 continue
93bbdcf9428b Fix for #18: whitespace in space-sensitive elements such as `<pre>` and `<textarea>` is now preserved. cmlenz parents: 113 diff changeset	275 value = '; '.join(decls)
345 8e75b83d3e71 Make `Attrs` instances immutable. cmlenz parents: 305 diff changeset	276 new_attrs.append((attr, value))
123 93bbdcf9428b Fix for #18: whitespace in space-sensitive elements such as `<pre>` and `<textarea>` is now preserved. cmlenz parents: 113 diff changeset	277
345 8e75b83d3e71 Make `Attrs` instances immutable. cmlenz parents: 305 diff changeset	278 yield kind, (tag, Attrs(new_attrs)), pos
123 93bbdcf9428b Fix for #18: whitespace in space-sensitive elements such as `<pre>` and `<textarea>` is now preserved. cmlenz parents: 113 diff changeset	279
93bbdcf9428b Fix for #18: whitespace in space-sensitive elements such as `<pre>` and `<textarea>` is now preserved. cmlenz parents: 113 diff changeset	280 elif kind is END:
93bbdcf9428b Fix for #18: whitespace in space-sensitive elements such as `<pre>` and `<textarea>` is now preserved. cmlenz parents: 113 diff changeset	281 tag = data
93bbdcf9428b Fix for #18: whitespace in space-sensitive elements such as `<pre>` and `<textarea>` is now preserved. cmlenz parents: 113 diff changeset	282 if waiting_for:
93bbdcf9428b Fix for #18: whitespace in space-sensitive elements such as `<pre>` and `<textarea>` is now preserved. cmlenz parents: 113 diff changeset	283 if waiting_for == tag:
93bbdcf9428b Fix for #18: whitespace in space-sensitive elements such as `<pre>` and `<textarea>` is now preserved. cmlenz parents: 113 diff changeset	284 waiting_for = None
93bbdcf9428b Fix for #18: whitespace in space-sensitive elements such as `<pre>` and `<textarea>` is now preserved. cmlenz parents: 113 diff changeset	285 else:
93bbdcf9428b Fix for #18: whitespace in space-sensitive elements such as `<pre>` and `<textarea>` is now preserved. cmlenz parents: 113 diff changeset	286 yield kind, data, pos
93bbdcf9428b Fix for #18: whitespace in space-sensitive elements such as `<pre>` and `<textarea>` is now preserved. cmlenz parents: 113 diff changeset	287
93bbdcf9428b Fix for #18: whitespace in space-sensitive elements such as `<pre>` and `<textarea>` is now preserved. cmlenz parents: 113 diff changeset	288 else:
93bbdcf9428b Fix for #18: whitespace in space-sensitive elements such as `<pre>` and `<textarea>` is now preserved. cmlenz parents: 113 diff changeset	289 if not waiting_for:
93bbdcf9428b Fix for #18: whitespace in space-sensitive elements such as `<pre>` and `<textarea>` is now preserved. cmlenz parents: 113 diff changeset	290 yield kind, data, pos

Mercurial > genshi > genshi-test

annotate genshi/filters.py @ 425:5b248708bbed