Mercurial > libervia-backend
annotate libervia/backend/tools/common/template.py @ 4204:879bad48cc2d
frontends (tools/webrtc): implement X11 desktop sharing:
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| author | Goffi <goffi@goffi.org> |
|---|---|
| date | Tue, 16 Jan 2024 10:42:00 +0100 |
| parents | 81faa85c9cfa |
| children | 0d7bb4df2343 |
| rev | line source |
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| 3028 | 1 #!/usr/bin/env python3 |
| 3137 | 2 |
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3 # SAT: an XMPP client |
| 3479 | 4 # Copyright (C) 2009-2021 Jérôme Poisson (goffi@goffi.org) |
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5 |
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6 # This program is free software: you can redistribute it and/or modify |
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7 # it under the terms of the GNU Affero General Public License as published by |
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8 # the Free Software Foundation, either version 3 of the License, or |
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9 # (at your option) any later version. |
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10 |
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11 # This program is distributed in the hope that it will be useful, |
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12 # but WITHOUT ANY WARRANTY; without even the implied warranty of |
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13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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14 # GNU Affero General Public License for more details. |
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15 |
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16 # You should have received a copy of the GNU Affero General Public License |
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17 # along with this program. If not, see <http://www.gnu.org/licenses/>. |
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18 |
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19 """Template generation""" |
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20 |
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21 from collections import namedtuple |
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22 from datetime import datetime |
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23 import html |
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24 import json |
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25 import os.path |
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26 from pathlib import Path |
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27 import re |
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28 import time |
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29 from typing import List, Optional, Tuple, Union |
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30 from xml.sax.saxutils import quoteattr |
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31 |
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32 from babel import support |
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33 from babel import Locale |
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34 from babel.core import UnknownLocaleError |
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35 from jinja2 import is_undefined |
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36 from jinja2 import utils |
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37 from jinja2 import TemplateNotFound |
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38 from jinja2 import pass_context |
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39 from jinja2.loaders import split_template_path |
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40 from lxml import etree |
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41 from markupsafe import Markup as safe |
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42 import pygments |
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43 from pygments import lexers |
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44 from pygments import formatters |
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45 |
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46 from libervia.backend.core import exceptions |
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47 from libervia.backend.core.constants import Const as C |
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48 from libervia.backend.core.i18n import _ |
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49 from libervia.backend.core.log import getLogger |
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50 from libervia.backend.tools import config |
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51 from libervia.backend.tools.common import date_utils |
| 4165 | 52 from libervia.frontends.tools import jid |
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53 |
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54 log = getLogger(__name__) |
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55 |
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56 try: |
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57 import sat_templates |
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58 except ImportError: |
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59 raise exceptions.MissingModule( |
| 3028 | 60 "sat_templates module is not available, please install it or check your path to " |
| 61 "use template engine" | |
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62 ) |
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63 else: |
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64 sat_templates # to avoid pyflakes warning |
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65 |
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66 try: |
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67 import jinja2 |
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68 except: |
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69 raise exceptions.MissingModule( |
| 3028 | 70 "Missing module jinja2, please install it from http://jinja.pocoo.org or with " |
| 71 "pip install jinja2" | |
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72 ) |
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73 |
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74 |
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75 |
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76 HTML_EXT = ("html", "xhtml") |
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77 RE_ATTR_ESCAPE = re.compile(r"[^a-z_-]") |
| 3028 | 78 SITE_RESERVED_NAMES = ("sat",) |
| 79 TPL_RESERVED_CHARS = r"()/." | |
| 80 RE_TPL_RESERVED_CHARS = re.compile("[" + TPL_RESERVED_CHARS + "]") | |
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81 BROWSER_DIR = "_browser" |
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82 BROWSER_META_FILE = "browser_meta.json" |
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83 |
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84 TemplateData = namedtuple("TemplateData", ['site', 'theme', 'path']) |
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85 |
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86 |
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87 class TemplateLoader(jinja2.BaseLoader): |
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88 """A template loader which handle site, theme and absolute paths""" |
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89 # TODO: list_templates should be implemented |
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90 |
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91 def __init__(self, sites_paths, sites_themes, trusted=False): |
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92 """ |
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93 @param trusted(bool): if True, absolue template paths will be allowed |
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94 be careful when using this option and sure that you can trust the template, |
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95 as this allow the template to open any file on the system that the |
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96 launching user can access. |
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97 """ |
| 3028 | 98 if not sites_paths or not "" in sites_paths: |
| 99 raise exceptions.InternalError("Invalid sites_paths") | |
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100 super(jinja2.BaseLoader, self).__init__() |
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101 self.sites_paths = sites_paths |
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102 self.sites_themes = sites_themes |
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103 self.trusted = trusted |
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104 |
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105 @staticmethod |
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106 def parse_template(template): |
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107 """Parse template path and return site, theme and path |
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108 |
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109 @param template_path(unicode): path to template with parenthesis syntax |
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110 The site and/or theme can be specified in parenthesis just before the path |
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111 e.g.: (some_theme)path/to/template.html |
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112 (/some_theme)path/to/template.html (equivalent to previous one) |
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113 (other_site/other_theme)path/to/template.html |
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114 (other_site/)path/to/template.html (defaut theme for other_site) |
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115 /absolute/path/to/template.html (in trusted environment only) |
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116 @return (TemplateData): |
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117 site, theme and template_path. |
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118 if site is empty, SàT Templates are used |
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119 site and theme can be both None if absolute path is used |
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120 Relative path is the path from theme root dir e.g. blog/articles.html |
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121 """ |
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123 # site and/or theme are specified |
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124 try: |
| 3028 | 125 theme_end = template.index(")") |
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126 except IndexError: |
| 3028 | 127 raise ValueError("incorrect site/theme in template") |
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128 theme_data = template[1:theme_end] |
| 3028 | 129 theme_splitted = theme_data.split('/') |
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130 if len(theme_splitted) == 1: |
| 3028 | 131 site, theme = "", theme_splitted[0] |
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132 elif len(theme_splitted) == 2: |
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133 site, theme = theme_splitted |
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134 else: |
| 3028 | 135 raise ValueError("incorrect site/theme in template") |
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136 template_path = template[theme_end+1:] |
| 3028 | 137 if not template_path or template_path.startswith("/"): |
| 138 raise ValueError("incorrect template path") | |
| 139 elif template.startswith("/"): | |
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140 # this is an absolute path, so we have no site and no theme |
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141 site = None |
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142 theme = None |
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143 template_path = template |
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144 else: |
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145 # a default template |
| 3028 | 146 site = "" |
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147 theme = C.TEMPLATE_THEME_DEFAULT |
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148 template_path = template |
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149 |
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150 if site is not None: |
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151 site = site.strip() |
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152 if not site: |
| 3028 | 153 site = "" |
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154 elif site in SITE_RESERVED_NAMES: |
| 3028 | 155 raise ValueError(_("{site} can't be used as site name, " |
| 156 "it's reserved.").format(site=site)) | |
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157 |
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158 if theme is not None: |
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159 theme = theme.strip() |
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160 if not theme: |
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161 theme = C.TEMPLATE_THEME_DEFAULT |
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162 if RE_TPL_RESERVED_CHARS.search(theme): |
| 3028 | 163 raise ValueError(_("{theme} contain forbidden char. Following chars " |
| 164 "are forbidden: {reserved}").format( | |
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165 theme=theme, reserved=TPL_RESERVED_CHARS)) |
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166 |
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167 return TemplateData(site, theme, template_path) |
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168 |
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169 @staticmethod |
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170 def get_sites_and_themes( |
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171 site: str, |
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172 theme: str, |
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173 settings: Optional[dict] = None, |
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174 ) -> List[Tuple[str, str]]: |
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175 """Get sites and themes to check for template/file |
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176 |
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177 Will add default theme and default site in search list when suitable. Settings' |
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178 `fallback` can be used to modify behaviour: themes in this list will then be used |
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179 instead of default (it can also be empty list or None, in which case no fallback |
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180 is used). |
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181 |
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182 @param site: site requested |
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183 @param theme: theme requested |
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184 @return: site and theme couples to check |
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185 """ |
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186 if settings is None: |
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187 settings = {} |
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188 sites_and_themes = [[site, theme]] |
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189 fallback = settings.get("fallback", [C.TEMPLATE_THEME_DEFAULT]) |
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190 for fb_theme in fallback: |
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191 if theme != fb_theme: |
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192 sites_and_themes.append([site, fb_theme]) |
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193 if site: |
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194 for fb_theme in fallback: |
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195 sites_and_themes.append(["", fb_theme]) |
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196 return sites_and_themes |
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197 |
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198 def _get_template_f(self, site, theme, path_elts): |
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199 """Look for template and return opened file if found |
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200 |
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201 @param site(unicode): names of site to check |
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202 (default site will also checked) |
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203 @param theme(unicode): theme to check (default theme will also be checked) |
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204 @param path_elts(iterable[str]): elements of template path |
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205 @return (tuple[(File, None), (str, None)]): a tuple with: |
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206 - opened template, or None if not found |
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207 - absolute file path, or None if not found |
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208 """ |
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209 if site is None: |
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210 raise exceptions.InternalError( |
| 3028 | 211 "_get_template_f must not be used with absolute path") |
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212 settings = self.sites_themes[site][theme]['settings'] |
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213 for site_to_check, theme_to_check in self.get_sites_and_themes( |
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214 site, theme, settings): |
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215 try: |
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216 base_path = self.sites_paths[site_to_check] |
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217 except KeyError: |
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218 log.warning(_("Unregistered site requested: {site_to_check}").format( |
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219 site_to_check=site_to_check)) |
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220 filepath = os.path.join( |
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221 base_path, |
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222 C.TEMPLATE_TPL_DIR, |
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223 theme_to_check, |
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224 *path_elts |
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225 ) |
| 3028 | 226 f = utils.open_if_exists(filepath, 'r') |
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227 if f is not None: |
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228 return f, filepath |
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229 return None, None |
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230 |
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231 def get_source(self, environment, template): |
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232 """Retrieve source handling site and themes |
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233 |
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234 If the path is absolute it is used directly if in trusted environment |
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235 else and exception is raised. |
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236 if the path is just relative, "default" theme is used. |
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237 @raise PermissionError: absolute path used in untrusted environment |
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238 """ |
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239 site, theme, template_path = self.parse_template(template) |
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240 |
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241 if site is None: |
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242 # we have an abolute template |
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243 if theme is not None: |
| 3028 | 244 raise exceptions.InternalError("We can't have a theme with absolute " |
| 245 "template.") | |
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246 if not self.trusted: |
| 3028 | 247 log.error(_("Absolute template used while unsecure is disabled, hack " |
| 248 "attempt? Template: {template}").format(template=template)) | |
| 249 raise exceptions.PermissionError("absolute template is not allowed") | |
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250 filepath = template_path |
| 3028 | 251 f = utils.open_if_exists(filepath, 'r') |
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252 else: |
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253 # relative path, we have to deal with site and theme |
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254 assert theme and template_path |
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255 path_elts = split_template_path(template_path) |
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256 # if we have non default site, we check it first, else we only check default |
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257 f, filepath = self._get_template_f(site, theme, path_elts) |
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258 |
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259 if f is None: |
| 3028 | 260 if (site is not None and path_elts[0] == "error" |
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261 and os.path.splitext(template_path)[1][1:] in HTML_EXT): |
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262 # if an HTML error is requested but doesn't exist, we try again |
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263 # with base error. |
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264 f, filepath = self._get_template_f( |
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265 site, theme, ("error", "base.html")) |
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266 if f is None: |
| 3028 | 267 raise exceptions.InternalError("error/base.html should exist") |
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268 else: |
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269 raise TemplateNotFound(template) |
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270 |
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271 try: |
| 3028 | 272 contents = f.read() |
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273 finally: |
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274 f.close() |
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275 |
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276 mtime = os.path.getmtime(filepath) |
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277 |
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278 def uptodate(): |
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279 try: |
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280 return os.path.getmtime(filepath) == mtime |
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281 except OSError: |
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282 return False |
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283 |
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284 return contents, filepath, uptodate |
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285 |
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286 |
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287 class Indexer(object): |
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288 """Index global to a page""" |
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289 |
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290 def __init__(self): |
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291 self._indexes = {} |
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292 |
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293 def next(self, value): |
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294 if value not in self._indexes: |
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295 self._indexes[value] = 0 |
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296 return 0 |
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297 self._indexes[value] += 1 |
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298 return self._indexes[value] |
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299 |
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300 def current(self, value): |
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301 return self._indexes.get(value) |
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302 |
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303 |
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304 class ScriptsHandler(object): |
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305 def __init__(self, renderer, template_data): |
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306 self.renderer = renderer |
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307 self.template_data = template_data |
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308 self.scripts = [] # we don't use a set because order may be important |
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309 |
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310 def include(self, library_name, attribute="defer"): |
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311 """Mark that a script need to be imported. |
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312 |
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313 Must be used before base.html is extended, as <script> are generated there. |
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314 If called several time with the same library, it will be imported once. |
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315 @param library_name(unicode): name of the library to import |
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316 @param loading: |
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317 """ |
| 3028 | 318 if attribute not in ("defer", "async", ""): |
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319 raise exceptions.DataError( |
| 3028 | 320 _('Invalid attribute, please use one of "defer", "async" or ""') |
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321 ) |
| 3028 | 322 if not library_name.endswith(".js"): |
| 323 library_name = library_name + ".js" | |
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324 if (library_name, attribute) not in self.scripts: |
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325 self.scripts.append((library_name, attribute)) |
| 3028 | 326 return "" |
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327 |
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328 def generate_scripts(self): |
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329 """Generate the <script> elements |
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330 |
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331 @return (unicode): <scripts> HTML tags |
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332 """ |
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333 scripts = [] |
| 3028 | 334 tpl = "<script src={src} {attribute}></script>" |
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335 for library, attribute in self.scripts: |
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336 library_path = self.renderer.get_static_path(self.template_data, library) |
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337 if library_path is None: |
| 3028 | 338 log.warning(_("Can't find {libary} javascript library").format( |
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339 library=library)) |
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340 continue |
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341 path = self.renderer.get_front_url(library_path) |
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342 scripts.append(tpl.format(src=quoteattr(path), attribute=attribute)) |
| 3028 | 343 return safe("\n".join(scripts)) |
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344 |
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345 |
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346 class Environment(jinja2.Environment): |
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347 |
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348 def get_template(self, name, parent=None, globals=None): |
| 3028 | 349 if name[0] not in ('/', '('): |
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350 # if name is not an absolute path or a full template name (this happen on |
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351 # extend or import during rendering), we convert it to a full template name. |
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352 # This is needed to handle cache correctly when a base template is overriden. |
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353 # Without that, we could not distinguish something like base/base.html if |
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354 # it's launched from some_site/some_theme or from [default]/default |
| 3028 | 355 name = "({site}/{theme}){template}".format( |
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356 site=self._template_data.site, |
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357 theme=self._template_data.theme, |
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358 template=name) |
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359 |
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360 return super(Environment, self).get_template(name, parent, globals) |
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361 |
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362 |
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363 class Renderer(object): |
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364 |
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365 def __init__(self, host, front_url_filter=None, trusted=False, private=False): |
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366 """ |
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367 @param front_url_filter(callable): filter to retrieve real url of a directory/file |
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368 The callable will get a two arguments: |
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369 - a dict with a "template_data" key containing TemplateData instance of |
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370 current template. Only site and theme should be necessary. |
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371 - the relative URL of the file to retrieve, relative from theme root |
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372 None to use default filter which return real path on file |
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373 Need to be specified for web rendering, to reflect URL seen by end user |
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374 @param trusted(bool): if True, allow to access absolute path |
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375 Only set to True if environment is safe (e.g. command line tool) |
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376 @param private(bool): if True, also load sites from sites_path_private_dict |
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377 """ |
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378 self.host = host |
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379 self.trusted = trusted |
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380 self.sites_paths = { |
| 3028 | 381 "": os.path.dirname(sat_templates.__file__), |
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382 } |
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383 self.sites_themes = { |
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384 } |
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385 conf = config.parse_main_conf() |
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386 public_sites = config.config_get(conf, None, "sites_path_public_dict", {}) |
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387 sites_data = [public_sites] |
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388 if private: |
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389 private_sites = config.config_get(conf, None, "sites_path_private_dict", {}) |
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390 sites_data.append(private_sites) |
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391 for sites in sites_data: |
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392 normalised = {} |
| 3028 | 393 for name, path in sites.items(): |
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394 if RE_TPL_RESERVED_CHARS.search(name): |
| 3028 | 395 log.warning(_("Can't add \"{name}\" site, it contains forbidden " |
| 396 "characters. Forbidden characters are {forbidden}.") | |
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397 .format(name=name, forbidden=TPL_RESERVED_CHARS)) |
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398 continue |
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399 path = os.path.expanduser(os.path.normpath(path)) |
| 3028 | 400 if not path or not path.startswith("/"): |
| 401 log.warning(_("Can't add \"{name}\" site, it should map to an " | |
| 402 "absolute path").format(name=name)) | |
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403 continue |
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404 normalised[name] = path |
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405 self.sites_paths.update(normalised) |
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406 |
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407 for site, site_path in self.sites_paths.items(): |
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408 tpl_path = Path(site_path) / C.TEMPLATE_TPL_DIR |
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409 for p in tpl_path.iterdir(): |
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410 if not p.is_dir(): |
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411 continue |
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412 log.debug(f"theme found for {site or 'default site'}: {p.name}") |
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413 theme_data = self.sites_themes.setdefault(site, {})[p.name] = { |
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414 'path': p, |
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415 'settings': {}} |
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416 theme_settings = p / "settings.json" |
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417 if theme_settings.is_file: |
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418 try: |
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419 with theme_settings.open() as f: |
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420 settings = json.load(f) |
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421 except Exception as e: |
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422 log.warning(_( |
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423 "Can't load theme settings at {path}: {e}").format( |
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424 path=theme_settings, e=e)) |
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425 else: |
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426 log.debug( |
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427 f"found settings for theme {p.name!r} at {theme_settings}") |
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428 fallback = settings.get("fallback") |
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429 if fallback is None: |
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430 settings["fallback"] = [] |
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431 elif isinstance(fallback, str): |
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432 settings["fallback"] = [fallback] |
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433 elif not isinstance(fallback, list): |
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434 raise ValueError( |
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435 'incorrect type for "fallback" in settings ' |
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436 f'({type(fallback)}) at {theme_settings}: {fallback}' |
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437 ) |
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438 theme_data['settings'] = settings |
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439 browser_path = p / BROWSER_DIR |
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440 if browser_path.is_dir(): |
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441 theme_data['browser_path'] = browser_path |
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442 browser_meta_path = browser_path / BROWSER_META_FILE |
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443 if browser_meta_path.is_file(): |
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444 try: |
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445 with browser_meta_path.open() as f: |
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446 theme_data['browser_meta'] = json.load(f) |
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447 except Exception as e: |
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448 log.error( |
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449 f"Can't parse browser metadata at {browser_meta_path}: {e}" |
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450 ) |
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451 continue |
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452 |
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453 self.env = Environment( |
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454 loader=TemplateLoader( |
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455 sites_paths=self.sites_paths, |
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456 sites_themes=self.sites_themes, |
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457 trusted=trusted |
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458 ), |
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459 autoescape=jinja2.select_autoescape(["html", "xhtml", "xml"]), |
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460 trim_blocks=True, |
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461 lstrip_blocks=True, |
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462 extensions=["jinja2.ext.i18n"], |
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463 ) |
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464 self.env._template_data = None |
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465 self._locale_str = C.DEFAULT_LOCALE |
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466 self._locale = Locale.parse(self._locale_str) |
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467 self.install_translations() |
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468 |
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469 # we want to have access to SàT constants in templates |
| 3028 | 470 self.env.globals["C"] = C |
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471 |
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472 # custom filters |
| 4165 | 473 self.env.filters["bare_jid"] = self._bare_jid |
| 3028 | 474 self.env.filters["next_gidx"] = self._next_gidx |
| 475 self.env.filters["cur_gidx"] = self._cur_gidx | |
| 476 self.env.filters["date_fmt"] = self._date_fmt | |
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477 self.env.filters["timestamp_to_hour"] = self._timestamp_to_hour |
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478 self.env.filters["delta_to_human"] = date_utils.delta2human |
| 3028 | 479 self.env.filters["xmlui_class"] = self._xmlui_class |
| 480 self.env.filters["attr_escape"] = self.attr_escape | |
| 481 self.env.filters["item_filter"] = self._item_filter | |
| 482 self.env.filters["adv_format"] = self._adv_format | |
| 483 self.env.filters["dict_ext"] = self._dict_ext | |
| 484 self.env.filters["highlight"] = self.highlight | |
| 485 self.env.filters["front_url"] = (self._front_url if front_url_filter is None | |
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486 else front_url_filter) |
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487 self.env.filters["media_type_main"] = self.media_type_main |
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488 self.env.filters["media_type_sub"] = self.media_type_sub |
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489 # custom tests |
| 3028 | 490 self.env.tests["in_the_past"] = self._in_the_past |
| 491 self.icons_path = os.path.join(host.media_dir, "fonts/fontello/svg") | |
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492 |
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493 # policies |
| 3028 | 494 self.env.policies["ext.i18n.trimmed"] = True |
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495 self.env.policies["json.dumps_kwargs"] = { |
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496 "sort_keys": True, |
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497 # if object can't be serialised, we use None |
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498 "default": lambda o: o.to_json() if hasattr(o, "to_json") else None |
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499 } |
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500 |
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501 def get_front_url(self, template_data, path=None): |
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502 """Give front URL (i.e. URL seen by end-user) of a path |
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503 |
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504 @param template_data[TemplateData]: data of current template |
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505 @param path(unicode, None): relative path of file to get, |
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506 if set, will remplate template_data.path |
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507 """ |
| 3028 | 508 return self.env.filters["front_url"]({"template_data": template_data}, |
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509 path or template_data.path) |
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510 |
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511 def install_translations(self): |
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512 # TODO: support multi translation |
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513 # for now, only translations in sat_templates are handled |
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514 self.translations = {} |
| 3028 | 515 for site_key, site_path in self.sites_paths.items(): |
| 516 site_prefix = "[{}] ".format(site_key) if site_key else '' | |
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517 i18n_dir = os.path.join(site_path, "i18n") |
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518 for lang_dir in os.listdir(i18n_dir): |
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519 lang_path = os.path.join(i18n_dir, lang_dir) |
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520 if not os.path.isdir(lang_path): |
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521 continue |
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522 po_path = os.path.join(lang_path, "LC_MESSAGES/sat.mo") |
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523 try: |
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524 locale = Locale.parse(lang_dir) |
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525 with open(po_path, "rb") as f: |
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526 try: |
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527 translations = self.translations[locale] |
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528 except KeyError: |
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529 self.translations[locale] = support.Translations(f, "sat") |
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530 else: |
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531 translations.merge(support.Translations(f, "sat")) |
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532 except EnvironmentError: |
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533 log.error( |
| 3028 | 534 _("Can't find template translation at {path}").format( |
|
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535 path=po_path)) |
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536 except UnknownLocaleError as e: |
| 3028 | 537 log.error(_("{site}Invalid locale name: {msg}").format( |
|
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538 site=site_prefix, msg=e)) |
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539 else: |
| 3028 | 540 log.info(_("{site}loaded {lang} templates translations").format( |
|
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541 site = site_prefix, |
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542 lang=lang_dir)) |
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543 |
|
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544 default_locale = Locale.parse(self._locale_str) |
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545 if default_locale not in self.translations: |
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546 # default locale disable gettext, |
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547 # so we can use None instead of a Translations instance |
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548 self.translations[default_locale] = None |
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549 |
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550 self.env.install_null_translations(True) |
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551 # we generate a tuple of locales ordered by display name that templates can access |
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552 # through the "locales" variable |
| 3028 | 553 self.locales = tuple(sorted(list(self.translations.keys()), |
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554 key=lambda l: l.language_name.lower())) |
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555 |
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556 |
|
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557 def set_locale(self, locale_str): |
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558 """set current locale |
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559 |
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560 change current translation locale and self self._locale and self._locale_str |
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561 """ |
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562 if locale_str == self._locale_str: |
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563 return |
|
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564 if locale_str == "en": |
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565 # we default to GB English when it's not specified |
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566 # one of the main reason is to avoid the nonsense U.S. short date format |
|
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567 locale_str = "en_GB" |
|
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568 try: |
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569 locale = Locale.parse(locale_str) |
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570 except ValueError as e: |
| 3028 | 571 log.warning(_("invalid locale value: {msg}").format(msg=e)) |
|
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572 locale_str = self._locale_str = C.DEFAULT_LOCALE |
|
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573 locale = Locale.parse(locale_str) |
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574 |
| 3028 | 575 locale_str = str(locale) |
|
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576 if locale_str != C.DEFAULT_LOCALE: |
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577 try: |
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578 translations = self.translations[locale] |
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579 except KeyError: |
| 3028 | 580 log.warning(_("Can't find locale {locale}".format(locale=locale))) |
|
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581 locale_str = C.DEFAULT_LOCALE |
|
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582 locale = Locale.parse(self._locale_str) |
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583 else: |
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|
584 self.env.install_gettext_translations(translations, True) |
| 3028 | 585 log.debug(_("Switched to {lang}").format(lang=locale.english_name)) |
|
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586 |
|
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587 if locale_str == C.DEFAULT_LOCALE: |
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588 self.env.install_null_translations(True) |
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589 |
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590 self._locale = locale |
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591 self._locale_str = locale_str |
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592 |
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593 def get_theme_and_root(self, template): |
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594 """retrieve theme and root dir of a given template |
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595 |
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596 @param template(unicode): template to parse |
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597 @return (tuple[unicode, unicode]): theme and absolute path to theme's root dir |
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598 @raise NotFound: requested site has not been found |
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599 """ |
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600 # FIXME: check use in CLI frontend, and include site |
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601 site, theme, __ = self.env.loader.parse_template(template) |
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602 if site is None: |
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603 # absolute template |
| 3028 | 604 return "", os.path.dirname(template) |
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605 try: |
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606 site_root_dir = self.sites_paths[site] |
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607 except KeyError: |
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608 raise exceptions.NotFound |
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609 return theme, os.path.join(site_root_dir, C.TEMPLATE_TPL_DIR, theme) |
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610 |
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611 def get_themes_data(self, site_name): |
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612 try: |
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613 return self.sites_themes[site_name] |
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614 except KeyError: |
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615 raise exceptions.NotFound(f"no theme found for {site_name}") |
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616 |
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617 def get_static_path( |
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618 self, |
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619 template_data: TemplateData, |
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620 filename: str, |
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621 settings: Optional[dict]=None |
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622 ) -> Optional[TemplateData]: |
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623 """Retrieve path of a static file if it exists with current theme or default |
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624 |
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625 File will be looked at <site_root_dir>/<theme_dir>/<static_dir>/filename, |
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626 then <site_root_dir>/<default_theme_dir>/<static_dir>/filename anf finally |
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627 <default_site>/<default_theme_dir>/<static_dir> (i.e. sat_templates). |
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628 In case of absolute URL, base dir of template is used as base. For instance if |
|
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629 template is an absolute template to "/some/path/template.html", file will be |
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630 checked at "/some/path/<filename>" |
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631 @param template_data: data of current template |
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632 @param filename: name of the file to retrieve |
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633 @param settings: theme settings, can be used to modify behaviour |
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634 @return: built template data instance where .path is |
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635 the relative path to the file, from theme root dir. |
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636 None if not found. |
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637 """ |
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638 if template_data.site is None: |
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639 # we have an absolue path |
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640 if (not template_data.theme is None |
| 3028 | 641 or not template_data.path.startswith('/')): |
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642 raise exceptions.InternalError( |
| 3028 | 643 "invalid template data, was expecting absolute URL") |
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644 static_dir = os.path.dirname(template_data.path) |
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645 file_path = os.path.join(static_dir, filename) |
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646 if os.path.exists(file_path): |
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647 return TemplateData(site=None, theme=None, path=file_path) |
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648 else: |
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649 return None |
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650 |
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651 sites_and_themes = TemplateLoader.get_sites_and_themes(template_data.site, |
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652 template_data.theme, |
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653 settings) |
|
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654 for site, theme in sites_and_themes: |
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655 site_root_dir = self.sites_paths[site] |
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656 relative_path = os.path.join(C.TEMPLATE_STATIC_DIR, filename) |
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657 absolute_path = os.path.join(site_root_dir, C.TEMPLATE_TPL_DIR, |
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658 theme, relative_path) |
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659 if os.path.exists(absolute_path): |
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660 return TemplateData(site=site, theme=theme, path=relative_path) |
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661 |
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662 return None |
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663 |
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664 def _append_css_paths( |
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665 self, |
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666 template_data: TemplateData, |
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667 css_files: list, |
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668 css_files_noscript: list, |
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669 name_root: str, |
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670 settings: dict |
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671 |
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672 ) -> None: |
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673 """Append found css to css_files and css_files_noscript |
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674 |
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675 @param css_files: list to fill of relative path to found css file |
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676 @param css_files_noscript: list to fill of relative path to found css file |
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677 with "_noscript" suffix |
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678 """ |
| 3028 | 679 name = name_root + ".css" |
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680 css_path = self.get_static_path(template_data, name, settings) |
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681 if css_path is not None: |
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682 css_files.append(self.get_front_url(css_path)) |
| 3028 | 683 noscript_name = name_root + "_noscript.css" |
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684 noscript_path = self.get_static_path( |
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685 template_data, noscript_name, settings) |
|
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686 if noscript_path is not None: |
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687 css_files_noscript.append(self.get_front_url(noscript_path)) |
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688 |
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689 def get_css_files(self, template_data): |
|
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690 """Retrieve CSS files to use according template_data |
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691 |
|
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692 For each element of the path, a .css file is looked for in /static, and returned |
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693 if it exists. |
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694 Previous element are kept by replacing '/' with '_'. |
|
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695 styles_extra.css, styles.css, highlight.css and fonts.css are always used if they |
|
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696 exist. |
|
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697 For each found file, if a file with the same name and "_noscript" suffix exists, |
| 3267 | 698 it will be returned is second part of resulting tuple. |
|
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699 For instance, if template_data is (some_site, some_theme, blog/articles.html), |
| 3267 | 700 following files are returned, each time trying [some_site root] first, |
|
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701 then default site (i.e. sat_templates) root: |
|
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702 - some_theme/static/styles.css is returned if it exists |
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703 else default/static/styles.css |
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704 - some_theme/static/blog.css is returned if it exists |
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|
705 else default/static/blog.css (if it exists too) |
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706 - some_theme/static/blog_articles.css is returned if it exists |
|
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|
707 else default/static/blog_articles.css (if it exists too) |
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708 and for each found files, if same file with _noscript suffix exists, it is put |
|
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|
709 in noscript list (for instance (some_theme/static/styles_noscript.css)). |
|
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|
710 The behaviour may be changed with theme settings: if "fallback" is set, specified |
|
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711 themes will be checked instead of default. The theme will be checked in given |
|
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|
712 order, and "fallback" may be None or empty list to not check anything. |
|
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713 @param template_data(TemplateData): data of the current template |
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714 @return (tuple[list[unicode], list[unicode]]): a tuple with: |
|
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|
715 - front URLs of CSS files to use |
|
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|
716 - front URLs of CSS files to use when scripts are not enabled |
|
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717 """ |
|
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718 # TODO: some caching would be nice |
|
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719 css_files = [] |
|
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|
720 css_files_noscript = [] |
| 3028 | 721 path_elems = template_data.path.split('/') |
|
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|
722 path_elems[-1] = os.path.splitext(path_elems[-1])[0] |
|
3268
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|
723 site = template_data.site |
|
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|
724 if site is None: |
|
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|
725 # absolute path |
|
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|
726 settings = {} |
|
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|
727 else: |
|
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|
728 settings = self.sites_themes[site][template_data.theme]['settings'] |
|
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|
729 |
|
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|
730 css_path = self.get_static_path(template_data, 'fonts.css', settings) |
|
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|
731 if css_path is not None: |
|
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|
732 css_files.append(self.get_front_url(css_path)) |
|
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|
733 |
| 3028 | 734 for name_root in ('styles', 'styles_extra', 'highlight'): |
|
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|
735 self._append_css_paths( |
|
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|
736 template_data, css_files, css_files_noscript, name_root, settings) |
| 2683 | 737 |
| 3028 | 738 for idx in range(len(path_elems)): |
| 739 name_root = "_".join(path_elems[:idx+1]) | |
|
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|
740 self._append_css_paths( |
|
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|
741 template_data, css_files, css_files_noscript, name_root, settings) |
|
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|
742 |
|
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|
743 return css_files, css_files_noscript |
|
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|
744 |
|
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|
745 ## custom filters ## |
|
dec31114c402
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|
746 |
|
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|
747 @pass_context |
|
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|
748 def _front_url(self, ctx, relative_url): |
|
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749 """Get front URL (URL seen by end-user) from a relative URL |
|
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|
750 |
|
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|
751 This default method return absolute full path |
|
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|
752 """ |
| 3028 | 753 template_data = ctx['template_data'] |
|
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|
754 if template_data.site is None: |
|
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|
755 assert template_data.theme is None |
| 3028 | 756 assert template_data.path.startswith("/") |
|
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757 return os.path.join(os.path.dirname(template_data.path, relative_url)) |
|
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|
758 |
|
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|
759 site_root_dir = self.sites_paths[template_data.site] |
|
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|
760 return os.path.join(site_root_dir, C.TEMPLATE_TPL_DIR, template_data.theme, |
|
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|
761 relative_url) |
|
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|
762 |
| 4165 | 763 def _bare_jid(self, full_jid: str|jid.JID) -> str: |
| 764 """Return the bare JID""" | |
| 765 return str(jid.JID(str(full_jid)).bare) | |
| 766 | |
|
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|
767 @pass_context |
|
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|
768 def _next_gidx(self, ctx, value): |
|
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|
769 """Use next current global index as suffix""" |
|
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|
770 next_ = ctx["gidx"].next(value) |
| 3028 | 771 return value if next_ == 0 else "{}_{}".format(value, next_) |
|
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|
772 |
|
4081
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|
773 @pass_context |
|
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|
774 def _cur_gidx(self, ctx, value): |
|
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|
775 """Use current current global index as suffix""" |
|
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|
776 current = ctx["gidx"].current(value) |
| 3028 | 777 return value if not current else "{}_{}".format(value, current) |
|
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|
778 |
|
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|
779 def _date_fmt( |
|
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|
780 self, |
|
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|
781 timestamp: Union[int, float], |
|
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|
782 fmt: str = "short", |
|
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|
783 date_only: bool = False, |
|
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|
784 auto_limit: int = 7, |
|
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|
785 auto_old_fmt: str = "short", |
|
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|
786 auto_new_fmt: str = "relative", |
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|
787 tz_name: Optional[str] = None |
|
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|
788 ) -> str: |
|
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|
789 if is_undefined(fmt): |
| 3028 | 790 fmt = "short" |
|
4031
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|
791 |
|
2453
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|
792 try: |
|
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|
793 return date_utils.date_fmt( |
|
2907
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2906
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|
794 timestamp, fmt, date_only, auto_limit, auto_old_fmt, |
|
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|
795 auto_new_fmt, locale_str = self._locale_str, |
|
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|
796 tz_info=tz_name or date_utils.TZ_UTC |
|
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|
797 ) |
|
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|
798 except Exception as e: |
| 3028 | 799 log.warning(_("Can't parse date: {msg}").format(msg=e)) |
|
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|
800 return str(timestamp) |
|
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|
801 |
|
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|
802 def _timestamp_to_hour(self, timestamp: float) -> int: |
|
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|
803 """Get hour of day corresponding to a timestamp""" |
|
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|
804 dt = datetime.fromtimestamp(timestamp) |
|
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|
805 return dt.hour |
|
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|
806 |
|
2384
d14c1a3e3244
template: new "xmlui_class" filter compute class names from name/values of requested fields.
Goffi <goffi@goffi.org>
parents:
2323
diff
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|
807 def attr_escape(self, text): |
|
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|
808 """escape a text to a value usable as an attribute |
|
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template: new "xmlui_class" filter compute class names from name/values of requested fields.
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parents:
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diff
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|
809 |
|
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diff
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|
810 remove spaces, and put in lower case |
|
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template: new "xmlui_class" filter compute class names from name/values of requested fields.
Goffi <goffi@goffi.org>
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diff
changeset
|
811 """ |
| 3028 | 812 return RE_ATTR_ESCAPE.sub("_", text.strip().lower())[:50] |
|
2384
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template: new "xmlui_class" filter compute class names from name/values of requested fields.
Goffi <goffi@goffi.org>
parents:
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diff
changeset
|
813 |
|
d14c1a3e3244
template: new "xmlui_class" filter compute class names from name/values of requested fields.
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parents:
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diff
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|
814 def _xmlui_class(self, xmlui_item, fields): |
|
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template: new "xmlui_class" filter compute class names from name/values of requested fields.
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|
815 """return classes computed from XMLUI fields name |
|
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template: new "xmlui_class" filter compute class names from name/values of requested fields.
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parents:
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diff
changeset
|
816 |
|
d14c1a3e3244
template: new "xmlui_class" filter compute class names from name/values of requested fields.
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parents:
2323
diff
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|
817 will return a string with a series of escaped {name}_{value} separated by spaces. |
|
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template: new "xmlui_class" filter compute class names from name/values of requested fields.
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|
818 @param xmlui_item(xmlui.XMLUIPanel): XMLUI containing the widgets to use |
|
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template: new "xmlui_class" filter compute class names from name/values of requested fields.
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parents:
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diff
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|
819 @param fields(iterable(unicode)): names of the widgets to use |
|
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template: new "xmlui_class" filter compute class names from name/values of requested fields.
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|
820 @return (unicode, None): computer string to use as class attribute value |
|
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|
821 None if no field was specified |
|
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|
822 """ |
|
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|
823 classes = [] |
|
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template: new "xmlui_class" filter compute class names from name/values of requested fields.
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parents:
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|
824 for name in fields: |
|
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changeset
|
825 escaped_name = self.attr_escape(name) |
|
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template: new "xmlui_class" filter compute class names from name/values of requested fields.
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parents:
2323
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|
826 try: |
|
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Goffi <goffi@goffi.org>
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|
827 for value in xmlui_item.widgets[name].values: |
|
2624
56f94936df1e
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|
828 classes.append(escaped_name + "_" + self.attr_escape(value)) |
|
2384
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Goffi <goffi@goffi.org>
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diff
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|
829 except KeyError: |
|
2624
56f94936df1e
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Goffi <goffi@goffi.org>
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|
830 log.debug( |
| 3028 | 831 _('ignoring field "{name}": it doesn\'t exists').format(name=name) |
|
2624
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|
832 ) |
|
2384
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|
833 continue |
| 3028 | 834 return " ".join(classes) or None |
|
2384
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Goffi <goffi@goffi.org>
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|
835 |
|
4081
84f6bee6440d
installation: moved from `setup.py` to `pyproject.toml`:
Goffi <goffi@goffi.org>
parents:
4075
diff
changeset
|
836 @pass_context |
|
2422
5425cf18929b
template: fixed the use of eval_context_filter in item_filter
Goffi <goffi@goffi.org>
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diff
changeset
|
837 def _item_filter(self, ctx, item, filters): |
| 2402 | 838 """return item's value, filtered if suitable |
| 839 | |
| 840 @param item(object): item to filter | |
| 841 value must have name and value attributes, | |
| 842 mostly used for XMLUI items | |
| 843 @param filters(dict[unicode, (callable, dict, None)]): map of name => filter | |
| 844 if filter is None, return the value unchanged | |
| 845 if filter is a callable, apply it | |
| 846 if filter is a dict, it can have following keys: | |
| 847 - filters: iterable of filters to apply | |
|
2671
0fa217fafabf
tools (common/template), jp: refactoring to handle multiple sites:
Goffi <goffi@goffi.org>
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|
848 - filters_args: kwargs of filters in the same order as filters (use empty |
|
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tools (common/template), jp: refactoring to handle multiple sites:
Goffi <goffi@goffi.org>
parents:
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changeset
|
849 dict if needed) |
| 2402 | 850 - template: template to format where {value} is the filtered value |
| 851 """ | |
| 852 value = item.value | |
| 853 filter_ = filters.get(item.name, None) | |
| 854 if filter_ is None: | |
| 855 return value | |
| 856 elif isinstance(filter_, dict): | |
| 3028 | 857 filters_args = filter_.get("filters_args") |
| 858 for idx, f_name in enumerate(filter_.get("filters", [])): | |
|
2422
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Goffi <goffi@goffi.org>
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|
859 kwargs = filters_args[idx] if filters_args is not None else {} |
|
5425cf18929b
template: fixed the use of eval_context_filter in item_filter
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|
860 filter_func = self.env.filters[f_name] |
|
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parents:
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|
861 try: |
|
4081
84f6bee6440d
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Goffi <goffi@goffi.org>
parents:
4075
diff
changeset
|
862 eval_context_filter = filter_func.evalpass_context |
|
2422
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|
863 except AttributeError: |
|
5425cf18929b
template: fixed the use of eval_context_filter in item_filter
Goffi <goffi@goffi.org>
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changeset
|
864 eval_context_filter = False |
|
5425cf18929b
template: fixed the use of eval_context_filter in item_filter
Goffi <goffi@goffi.org>
parents:
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diff
changeset
|
865 |
|
5425cf18929b
template: fixed the use of eval_context_filter in item_filter
Goffi <goffi@goffi.org>
parents:
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changeset
|
866 if eval_context_filter: |
|
5425cf18929b
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Goffi <goffi@goffi.org>
parents:
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|
867 value = filter_func(ctx.eval_ctx, value, **kwargs) |
|
5425cf18929b
template: fixed the use of eval_context_filter in item_filter
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|
868 else: |
|
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parents:
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diff
changeset
|
869 value = filter_func(value, **kwargs) |
| 3028 | 870 template = filter_.get("template") |
|
2422
5425cf18929b
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Goffi <goffi@goffi.org>
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changeset
|
871 if template: |
|
5425cf18929b
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Goffi <goffi@goffi.org>
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changeset
|
872 # format will return a string, so we need to check first |
|
5425cf18929b
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parents:
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|
873 # if the value is safe or not, and re-mark it after formatting |
|
5425cf18929b
template: fixed the use of eval_context_filter in item_filter
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|
874 is_safe = isinstance(value, safe) |
|
5425cf18929b
template: fixed the use of eval_context_filter in item_filter
Goffi <goffi@goffi.org>
parents:
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diff
changeset
|
875 value = template.format(value=value) |
|
5425cf18929b
template: fixed the use of eval_context_filter in item_filter
Goffi <goffi@goffi.org>
parents:
2414
diff
changeset
|
876 if is_safe: |
|
5425cf18929b
template: fixed the use of eval_context_filter in item_filter
Goffi <goffi@goffi.org>
parents:
2414
diff
changeset
|
877 value = safe(value) |
|
5425cf18929b
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Goffi <goffi@goffi.org>
parents:
2414
diff
changeset
|
878 return value |
| 2402 | 879 |
|
2391
07e1543d6992
template: new "adv_format" filter which use Python's format and return whole value if template is None
Goffi <goffi@goffi.org>
parents:
2385
diff
changeset
|
880 def _adv_format(self, value, template, **kwargs): |
|
07e1543d6992
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Goffi <goffi@goffi.org>
parents:
2385
diff
changeset
|
881 """Advancer formatter |
|
07e1543d6992
template: new "adv_format" filter which use Python's format and return whole value if template is None
Goffi <goffi@goffi.org>
parents:
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diff
changeset
|
882 |
|
07e1543d6992
template: new "adv_format" filter which use Python's format and return whole value if template is None
Goffi <goffi@goffi.org>
parents:
2385
diff
changeset
|
883 like format() method, but take care or special values like None |
|
07e1543d6992
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Goffi <goffi@goffi.org>
parents:
2385
diff
changeset
|
884 @param value(unicode): value to format |
|
07e1543d6992
template: new "adv_format" filter which use Python's format and return whole value if template is None
Goffi <goffi@goffi.org>
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2385
diff
changeset
|
885 @param template(None, unicode): template to use with format() method. |
|
07e1543d6992
template: new "adv_format" filter which use Python's format and return whole value if template is None
Goffi <goffi@goffi.org>
parents:
2385
diff
changeset
|
886 It will be formatted using value=value and **kwargs |
|
07e1543d6992
template: new "adv_format" filter which use Python's format and return whole value if template is None
Goffi <goffi@goffi.org>
parents:
2385
diff
changeset
|
887 None to return value unchanged |
|
07e1543d6992
template: new "adv_format" filter which use Python's format and return whole value if template is None
Goffi <goffi@goffi.org>
parents:
2385
diff
changeset
|
888 @return (unicode): formatted value |
|
07e1543d6992
template: new "adv_format" filter which use Python's format and return whole value if template is None
Goffi <goffi@goffi.org>
parents:
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diff
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|
889 """ |
|
07e1543d6992
template: new "adv_format" filter which use Python's format and return whole value if template is None
Goffi <goffi@goffi.org>
parents:
2385
diff
changeset
|
890 if template is None: |
|
07e1543d6992
template: new "adv_format" filter which use Python's format and return whole value if template is None
Goffi <goffi@goffi.org>
parents:
2385
diff
changeset
|
891 return value |
|
2624
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2599
diff
changeset
|
892 # jinja use string when no special char is used, so we have to convert to unicode |
| 3028 | 893 return str(template).format(value=value, **kwargs) |
|
2391
07e1543d6992
template: new "adv_format" filter which use Python's format and return whole value if template is None
Goffi <goffi@goffi.org>
parents:
2385
diff
changeset
|
894 |
|
2425
d294527bd46f
template: added dict_ext filter to extend a dictionary
Goffi <goffi@goffi.org>
parents:
2422
diff
changeset
|
895 def _dict_ext(self, source_dict, extra_dict, key=None): |
|
d294527bd46f
template: added dict_ext filter to extend a dictionary
Goffi <goffi@goffi.org>
parents:
2422
diff
changeset
|
896 """extend source_dict with extra dict and return the result |
|
d294527bd46f
template: added dict_ext filter to extend a dictionary
Goffi <goffi@goffi.org>
parents:
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diff
changeset
|
897 |
|
d294527bd46f
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Goffi <goffi@goffi.org>
parents:
2422
diff
changeset
|
898 @param source_dict(dict): dictionary to extend |
|
d294527bd46f
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parents:
2422
diff
changeset
|
899 @param extra_dict(dict, None): dictionary to use to extend first one |
|
d294527bd46f
template: added dict_ext filter to extend a dictionary
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parents:
2422
diff
changeset
|
900 None to return source_dict unmodified |
|
d294527bd46f
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parents:
2422
diff
changeset
|
901 @param key(unicode, None): if specified extra_dict[key] will be used |
|
d294527bd46f
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parents:
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diff
changeset
|
902 if it doesn't exists, a copy of unmodified source_dict is returned |
|
d294527bd46f
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Goffi <goffi@goffi.org>
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diff
changeset
|
903 @return (dict): resulting dictionary |
|
d294527bd46f
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Goffi <goffi@goffi.org>
parents:
2422
diff
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|
904 """ |
|
d294527bd46f
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parents:
2422
diff
changeset
|
905 if extra_dict is None: |
|
d294527bd46f
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Goffi <goffi@goffi.org>
parents:
2422
diff
changeset
|
906 return source_dict |
|
d294527bd46f
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Goffi <goffi@goffi.org>
parents:
2422
diff
changeset
|
907 if key is not None: |
|
d294527bd46f
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parents:
2422
diff
changeset
|
908 extra_dict = extra_dict.get(key, {}) |
|
d294527bd46f
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parents:
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diff
changeset
|
909 ret = source_dict.copy() |
|
d294527bd46f
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parents:
2422
diff
changeset
|
910 ret.update(extra_dict) |
|
d294527bd46f
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Goffi <goffi@goffi.org>
parents:
2422
diff
changeset
|
911 return ret |
|
d294527bd46f
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Goffi <goffi@goffi.org>
parents:
2422
diff
changeset
|
912 |
|
2454
06ff33052354
core, template (filters): added pygments as a dependency + new highlight filter to use it.
Goffi <goffi@goffi.org>
parents:
2453
diff
changeset
|
913 def highlight(self, code, lexer_name=None, lexer_opts=None, html_fmt_opts=None): |
|
06ff33052354
core, template (filters): added pygments as a dependency + new highlight filter to use it.
Goffi <goffi@goffi.org>
parents:
2453
diff
changeset
|
914 """Do syntax highlighting on code |
|
06ff33052354
core, template (filters): added pygments as a dependency + new highlight filter to use it.
Goffi <goffi@goffi.org>
parents:
2453
diff
changeset
|
915 |
|
2671
0fa217fafabf
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Goffi <goffi@goffi.org>
parents:
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diff
changeset
|
916 Under the hood, pygments is used, check its documentation for options possible |
|
0fa217fafabf
tools (common/template), jp: refactoring to handle multiple sites:
Goffi <goffi@goffi.org>
parents:
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diff
changeset
|
917 values. |
|
2454
06ff33052354
core, template (filters): added pygments as a dependency + new highlight filter to use it.
Goffi <goffi@goffi.org>
parents:
2453
diff
changeset
|
918 @param code(unicode): code or markup to highlight |
|
06ff33052354
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Goffi <goffi@goffi.org>
parents:
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changeset
|
919 @param lexer_name(unicode, None): name of the lexer to use |
|
06ff33052354
core, template (filters): added pygments as a dependency + new highlight filter to use it.
Goffi <goffi@goffi.org>
parents:
2453
diff
changeset
|
920 None to autodetect it |
|
06ff33052354
core, template (filters): added pygments as a dependency + new highlight filter to use it.
Goffi <goffi@goffi.org>
parents:
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diff
changeset
|
921 @param html_fmt_opts(dict, None): kword arguments to use for HtmlFormatter |
|
06ff33052354
core, template (filters): added pygments as a dependency + new highlight filter to use it.
Goffi <goffi@goffi.org>
parents:
2453
diff
changeset
|
922 @return (unicode): HTML markup with highlight classes |
|
06ff33052354
core, template (filters): added pygments as a dependency + new highlight filter to use it.
Goffi <goffi@goffi.org>
parents:
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diff
changeset
|
923 """ |
|
06ff33052354
core, template (filters): added pygments as a dependency + new highlight filter to use it.
Goffi <goffi@goffi.org>
parents:
2453
diff
changeset
|
924 if lexer_opts is None: |
|
06ff33052354
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Goffi <goffi@goffi.org>
parents:
2453
diff
changeset
|
925 lexer_opts = {} |
|
06ff33052354
core, template (filters): added pygments as a dependency + new highlight filter to use it.
Goffi <goffi@goffi.org>
parents:
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diff
changeset
|
926 if html_fmt_opts is None: |
|
06ff33052354
core, template (filters): added pygments as a dependency + new highlight filter to use it.
Goffi <goffi@goffi.org>
parents:
2453
diff
changeset
|
927 html_fmt_opts = {} |
|
06ff33052354
core, template (filters): added pygments as a dependency + new highlight filter to use it.
Goffi <goffi@goffi.org>
parents:
2453
diff
changeset
|
928 if lexer_name is None: |
|
06ff33052354
core, template (filters): added pygments as a dependency + new highlight filter to use it.
Goffi <goffi@goffi.org>
parents:
2453
diff
changeset
|
929 lexer = lexers.guess_lexer(code, **lexer_opts) |
|
06ff33052354
core, template (filters): added pygments as a dependency + new highlight filter to use it.
Goffi <goffi@goffi.org>
parents:
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|
930 else: |
|
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core, template (filters): added pygments as a dependency + new highlight filter to use it.
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|
931 lexer = lexers.get_lexer_by_name(lexer_name, **lexer_opts) |
|
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|
932 formatter = formatters.HtmlFormatter(**html_fmt_opts) |
|
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|
933 return safe(pygments.highlight(code, lexer, formatter)) |
|
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|
934 |
|
4100
810921c33a47
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|
935 def media_type_main(self, value: Optional[str]) -> Optional[str]: |
|
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|
936 """Return main type of a media type""" |
|
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|
937 if not value: |
|
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|
938 return None |
|
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|
939 return value.partition("/")[0] |
|
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|
940 |
|
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|
941 def media_type_sub(self, value: Optional[str]) -> Optional[str]: |
|
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|
942 """Return main type of a media type""" |
|
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|
943 if not value: |
|
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|
944 return None |
|
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|
945 return value.partition("/")[1] |
|
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|
946 |
|
2403
dec31114c402
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|
947 ## custom tests ## |
|
dec31114c402
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|
948 |
|
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|
949 def _in_the_past(self, timestamp): |
|
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|
950 """check if a date is in the past |
|
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|
951 |
|
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|
952 @param timestamp(unicode, int): unix time |
|
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|
953 @return (bool): True if date is in the past |
|
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|
954 """ |
|
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|
955 return time.time() > int(timestamp) |
|
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|
956 |
| 2515 | 957 ## template methods ## |
| 958 | |
| 959 def _icon_defs(self, *names): | |
|
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|
960 """Define svg icons which will be used in the template. |
|
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|
961 |
|
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|
962 Their name is used as id |
|
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|
963 """ |
|
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|
964 svg_elt = etree.Element( |
|
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|
965 "svg", |
|
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|
966 nsmap={None: "http://www.w3.org/2000/svg"}, |
|
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|
967 width="0", |
|
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|
968 height="0", |
|
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|
969 style="display: block", |
|
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|
970 ) |
|
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|
971 defs_elt = etree.SubElement(svg_elt, "defs") |
| 2515 | 972 for name in names: |
| 3028 | 973 path = os.path.join(self.icons_path, name + ".svg") |
| 2515 | 974 icon_svg_elt = etree.parse(path).getroot() |
| 975 # we use icon name as id, so we can retrieve them easily | |
|
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|
976 icon_svg_elt.set("id", name) |
|
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|
977 if not icon_svg_elt.tag == "{http://www.w3.org/2000/svg}svg": |
| 3028 | 978 raise exceptions.DataError("invalid SVG element") |
| 2515 | 979 defs_elt.append(icon_svg_elt) |
|
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|
980 return safe(etree.tostring(svg_elt, encoding="unicode")) |
| 2515 | 981 |
|
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|
982 def _icon_use(self, name: str, cls: str = "", **kwargs: str) -> safe: |
|
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|
983 """Insert a icon previously defined with [_icon_defs]""" |
|
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|
984 extra_attrs = " ".join(f'{k}="{html.escape(str(v))}"' for k, v in kwargs.items()) |
|
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|
985 return safe( |
|
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|
986 '<svg class="svg-icon{cls}"{extra_attrs} xmlns="http://www.w3.org/2000/svg" ' |
|
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|
987 'viewBox="0 0 100 100">\n' |
|
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|
988 ' <use href="#{name}"/>' |
|
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|
989 '</svg>\n'.format( |
|
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|
990 name=name, |
|
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|
991 cls=(" " + cls) if cls else "", |
|
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|
992 extra_attrs=" " + extra_attrs if extra_attrs else "" |
|
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|
993 ) |
|
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|
994 ) |
| 2515 | 995 |
|
3274
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|
996 def _icon_from_client(self, client): |
|
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|
997 """Get icon name to represent a disco client""" |
|
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|
998 if client is None: |
|
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|
999 return 'desktop' |
|
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|
1000 elif 'pc' in client: |
|
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|
1001 return 'desktop' |
|
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|
1002 elif 'phone' in client: |
|
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|
1003 return 'mobile' |
|
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|
1004 elif 'web' in client: |
|
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|
1005 return 'globe' |
|
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|
1006 elif 'console' in client: |
|
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|
1007 return 'terminal' |
|
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|
1008 else: |
|
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|
1009 return 'desktop' |
|
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|
1010 |
|
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|
1011 def render(self, template, site=None, theme=None, locale=C.DEFAULT_LOCALE, |
| 3028 | 1012 media_path="", css_files=None, css_inline=False, **kwargs): |
|
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|
1013 """Render a template |
|
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|
1014 |
|
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|
1015 @param template(unicode): template to render (e.g. blog/articles.html) |
| 3267 | 1016 @param site(unicode): site name |
|
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|
1017 None or empty string for defaut site (i.e. SàT templates) |
|
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|
1018 @param theme(unicode): template theme |
|
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|
1019 @param media_path(unicode): prefix of the SàT media path/URL to use for |
|
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|
1020 template root. Must end with a u'/' |
| 3267 | 1021 @param css_files(list[unicode],None): CSS files to use |
|
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|
1022 CSS files must be in static dir of the template |
|
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|
1023 use None for automatic selection of CSS files based on template category |
|
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1024 None is recommended. General static/style.css and theme file name will be |
|
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|
1025 used. |
|
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|
1026 @param css_inline(bool): if True, CSS will be embedded in the HTML page |
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|
1027 @param **kwargs: variable to transmit to the template |
|
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|
1028 """ |
|
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|
1029 if not template: |
| 3028 | 1030 raise ValueError("template can't be empty") |
|
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|
1031 if site is not None or theme is not None: |
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|
1032 # user wants to set site and/or theme, so we add it to the template path |
|
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|
1033 if site is None: |
| 3028 | 1034 site = '' |
|
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|
1035 if theme is None: |
|
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|
1036 theme = C.TEMPLATE_THEME_DEFAULT |
| 3028 | 1037 if template[0] == "(": |
|
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|
1038 raise ValueError( |
| 3028 | 1039 "you can't specify site or theme in template path and in argument " |
| 1040 "at the same time" | |
|
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|
1041 ) |
|
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|
1042 |
|
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|
1043 template_data = TemplateData(site, theme, template) |
| 3028 | 1044 template = "({site}/{theme}){template}".format( |
|
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|
1045 site=site, theme=theme, template=template) |
|
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|
1046 else: |
|
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|
1047 template_data = self.env.loader.parse_template(template) |
|
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|
1048 |
|
2676
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|
1049 # we need to save template_data in environment, to load right templates when they |
|
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|
1050 # are referenced from other templates (e.g. import) |
|
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|
1051 # FIXME: this trick will not work anymore if we use async templates (it works |
|
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|
1052 # here because we know that the rendering will be blocking until we unset |
|
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1053 # _template_data) |
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1054 self.env._template_data = template_data |
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1055 |
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1056 template_source = self.env.get_template(template) |
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1057 |
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1058 if css_files is None: |
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1059 css_files, css_files_noscript = self.get_css_files(template_data) |
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1060 else: |
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1061 css_files_noscript = [] |
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1062 |
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1063 kwargs["icon_defs"] = self._icon_defs |
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1064 kwargs["icon"] = self._icon_use |
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1065 kwargs["icon_from_client"] = self._icon_from_client |
| 2515 | 1066 |
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1067 if css_inline: |
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1068 css_contents = [] |
| 3028 | 1069 for files, suffix in ((css_files, ""), |
| 1070 (css_files_noscript, "_noscript")): | |
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1071 site_root_dir = self.sites_paths[template_data.site] |
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1072 for css_file in files: |
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1073 css_file_path = os.path.join(site_root_dir, css_file) |
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1074 with open(css_file_path) as f: |
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1075 css_contents.append(f.read()) |
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1076 if css_contents: |
| 3028 | 1077 kwargs["css_content" + suffix] = "\n".join(css_contents) |
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1078 |
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1079 scripts_handler = ScriptsHandler(self, template_data) |
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1080 self.set_locale(locale) |
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1081 |
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1082 # XXX: theme used in template arguments is the requested theme, which may differ |
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1083 # from actual theme if the template doesn't exist in the requested theme. |
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1084 rendered = template_source.render( |
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1085 template_data=template_data, |
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1086 media_path=media_path, |
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1087 css_files=css_files, |
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1088 css_files_noscript=css_files_noscript, |
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1089 locale=self._locale, |
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1090 locales=self.locales, |
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1091 gidx=Indexer(), |
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1092 script=scripts_handler, |
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1093 **kwargs |
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1094 ) |
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1095 self.env._template_data = None |
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1096 return rendered |