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annotate rhodecode/lib/markup_renderer.py @ 3172:264d9c930c17 beta

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added some more logging into get_container_username function
author Marcin Kuzminski <marcin@python-works.com>
date Sat, 19 Jan 2013 16:28:18 +0100
parents 01cb7df198ae
children 7563624e712c
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 # -*- coding: utf-8 -*-
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2 """
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3 rhodecode.lib.markup_renderer
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4 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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5
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6
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7 Renderer for markup languages with ability to parse using rst or markdown
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8
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9 :created_on: Oct 27, 2011
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10 :author: marcink
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11 :copyright: (C) 2011-2012 Marcin Kuzminski <marcin@python-works.com>
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12 :license: GPLv3, see COPYING for more details.
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13 """
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14 # This program is free software: you can redistribute it and/or modify
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15 # it under the terms of the GNU General Public License as published by
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16 # the Free Software Foundation, either version 3 of the License, or
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17 # (at your option) any later version.
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18 #
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19 # This program is distributed in the hope that it will be useful,
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20 # but WITHOUT ANY WARRANTY; without even the implied warranty of
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21 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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22 # GNU General Public License for more details.
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23 #
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24 # You should have received a copy of the GNU General Public License
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25 # along with this program. If not, see <http://www.gnu.org/licenses/>.
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26
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27 import re
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28 import logging
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29 import traceback
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30
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31 from rhodecode.lib.utils2 import safe_unicode, MENTIONS_REGEX
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32
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33 log = logging.getLogger(__name__)
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34
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35
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36 class MarkupRenderer(object):
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37 RESTRUCTUREDTEXT_DISALLOWED_DIRECTIVES = ['include', 'meta', 'raw']
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38
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39 MARKDOWN_PAT = re.compile(r'md|mkdn?|mdown|markdown', re.IGNORECASE)
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40 RST_PAT = re.compile(r're?st', re.IGNORECASE)
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41 PLAIN_PAT = re.compile(r'readme', re.IGNORECASE)
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42
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43 def __detect_renderer(self, source, filename=None):
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44 """
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45 runs detection of what renderer should be used for generating html
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46 from a markup language
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47
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48 filename can be also explicitly a renderer name
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49
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50 :param source:
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51 :param filename:
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52 """
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53
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54 if MarkupRenderer.MARKDOWN_PAT.findall(filename):
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55 detected_renderer = 'markdown'
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56 elif MarkupRenderer.RST_PAT.findall(filename):
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57 detected_renderer = 'rst'
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58 elif MarkupRenderer.PLAIN_PAT.findall(filename):
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59 detected_renderer = 'rst'
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60 else:
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61 detected_renderer = 'plain'
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62
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63 return getattr(MarkupRenderer, detected_renderer)
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64
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65 def render(self, source, filename=None):
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66 """
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67 Renders a given filename using detected renderer
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68 it detects renderers based on file extension or mimetype.
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69 At last it will just do a simple html replacing new lines with <br/>
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70
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71 :param file_name:
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72 :param source:
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73 """
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74
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75 renderer = self.__detect_renderer(source, filename)
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76 readme_data = renderer(source)
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77 return readme_data
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78
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79 @classmethod
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80 def plain(cls, source):
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81 source = safe_unicode(source)
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82
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83 def urlify_text(text):
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84 url_pat = re.compile(r'(http[s]?://(?:[a-zA-Z]|[0-9]|[$-_@.&+]'
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85 '|[!*\(\),]|(?:%[0-9a-fA-F][0-9a-fA-F]))+)')
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86
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87 def url_func(match_obj):
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88 url_full = match_obj.groups()[0]
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89 return '<a href="%(url)s">%(url)s</a>' % ({'url': url_full})
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90
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91 return url_pat.sub(url_func, text)
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92
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93 source = urlify_text(source)
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94 return '<br />' + source.replace("\n", '<br />')
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95
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96 @classmethod
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97 def markdown(cls, source, safe=True):
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98 source = safe_unicode(source)
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99 try:
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100 import markdown as __markdown
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101 return __markdown.markdown(source, ['codehilite', 'extra'])
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102 except ImportError:
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103 log.warning('Install markdown to use this function')
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104 return cls.plain(source)
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105 except Exception:
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106 log.error(traceback.format_exc())
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107 if safe:
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108 return source
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109 else:
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110 raise
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111
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112 @classmethod
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113 def rst(cls, source, safe=True):
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114 source = safe_unicode(source)
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115 try:
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116 from docutils.core import publish_parts
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117 from docutils.parsers.rst import directives
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118 docutils_settings = dict([(alias, None) for alias in
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119 cls.RESTRUCTUREDTEXT_DISALLOWED_DIRECTIVES])
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120
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121 docutils_settings.update({'input_encoding': 'unicode',
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122 'report_level': 4})
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123
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124 for k, v in docutils_settings.iteritems():
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125 directives.register_directive(k, v)
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126
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127 parts = publish_parts(source=source,
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128 writer_name="html4css1",
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129 settings_overrides=docutils_settings)
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130
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131 return parts['html_title'] + parts["fragment"]
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132 except ImportError:
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133 log.warning('Install docutils to use this function')
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134 return cls.plain(source)
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135 except Exception:
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136 log.error(traceback.format_exc())
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137 if safe:
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138 return source
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139 else:
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140 raise
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141
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142 @classmethod
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143 def rst_with_mentions(cls, source):
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144 mention_pat = re.compile(MENTIONS_REGEX)
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145
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146 def wrapp(match_obj):
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147 uname = match_obj.groups()[0]
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148 return ' **@%(uname)s** ' % {'uname': uname}
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149 mention_hl = mention_pat.sub(wrapp, source).strip()
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150 return cls.rst(mention_hl)