Mercurial > libervia-backend
annotate sat/tools/common/template.py @ 3266:8ec5ddb4e759
tools (common/template): list themes and parse their browser data, available through new `getThemesData` method
| author | Goffi <goffi@goffi.org> |
|---|---|
| date | Fri, 01 May 2020 16:26:39 +0200 |
| parents | 559a625a236b |
| children | 2eeca6fd08f7 |
| rev | line source |
|---|---|
| 3028 | 1 #!/usr/bin/env python3 |
| 3137 | 2 |
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3 # SAT: an XMPP client |
| 3136 | 4 # Copyright (C) 2009-2020 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 import os.path |
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22 import time |
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23 import re |
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24 import json |
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25 from pathlib import Path |
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26 from collections import namedtuple |
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27 from xml.sax.saxutils import quoteattr |
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28 from babel import support |
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29 from babel import Locale |
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30 from babel.core import UnknownLocaleError |
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31 import pygments |
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32 from pygments import lexers |
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33 from pygments import formatters |
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34 from sat.core.constants import Const as C |
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35 from sat.core.i18n import _ |
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36 from sat.core import exceptions |
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37 from sat.tools import config |
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38 from sat.tools.common import date_utils |
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39 from sat.core.log import getLogger |
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40 |
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41 log = getLogger(__name__) |
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42 |
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43 try: |
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44 import sat_templates |
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45 except ImportError: |
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46 raise exceptions.MissingModule( |
| 3028 | 47 "sat_templates module is not available, please install it or check your path to " |
| 48 "use template engine" | |
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49 ) |
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50 else: |
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51 sat_templates # to avoid pyflakes warning |
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52 |
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53 try: |
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54 import jinja2 |
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55 except: |
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56 raise exceptions.MissingModule( |
| 3028 | 57 "Missing module jinja2, please install it from http://jinja.pocoo.org or with " |
| 58 "pip install jinja2" | |
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59 ) |
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60 |
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61 from lxml import etree |
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62 from jinja2 import Markup as safe |
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63 from jinja2 import is_undefined |
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64 from jinja2 import utils |
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65 from jinja2 import TemplateNotFound |
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66 from jinja2 import contextfilter |
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67 from jinja2.loaders import split_template_path |
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68 |
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69 HTML_EXT = ("html", "xhtml") |
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70 RE_ATTR_ESCAPE = re.compile(r"[^a-z_-]") |
| 3028 | 71 SITE_RESERVED_NAMES = ("sat",) |
| 72 TPL_RESERVED_CHARS = r"()/." | |
| 73 RE_TPL_RESERVED_CHARS = re.compile("[" + TPL_RESERVED_CHARS + "]") | |
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74 BROWSER_DIR = "_browser" |
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75 BROWSER_META_FILE = "browser_meta.json" |
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76 |
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77 TemplateData = namedtuple("TemplateData", ['site', 'theme', 'path']) |
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78 |
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79 |
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80 class TemplateLoader(jinja2.BaseLoader): |
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81 """A template loader which handle site, theme and absolute paths""" |
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82 # TODO: list_templates should be implemented |
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83 |
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84 def __init__(self, sites_paths, trusted=False): |
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85 """ |
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86 @param trusted(bool): if True, absolue template paths will be allowed |
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87 be careful when using this option and sure that you can trust the template, |
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88 as this allow the template to open any file on the system that the |
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89 launching user can access. |
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90 """ |
| 3028 | 91 if not sites_paths or not "" in sites_paths: |
| 92 raise exceptions.InternalError("Invalid sites_paths") | |
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93 super(jinja2.BaseLoader, self).__init__() |
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94 self.sites_paths = sites_paths |
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95 self.trusted = trusted |
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96 |
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97 @staticmethod |
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98 def parse_template(template): |
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99 """Parse template path and return site, theme and path |
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100 |
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101 @param template_path(unicode): path to template with parenthesis syntax |
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102 The site and/or theme can be specified in parenthesis just before the path |
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103 e.g.: (some_theme)path/to/template.html |
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104 (/some_theme)path/to/template.html (equivalent to previous one) |
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105 (other_site/other_theme)path/to/template.html |
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106 (other_site/)path/to/template.html (defaut theme for other_site) |
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107 /absolute/path/to/template.html (in trusted environment only) |
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108 @return (TemplateData): |
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109 site, theme and template_path. |
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110 if site is empty, SàT Templates are used |
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111 site and theme can be both None if absolute path is used |
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112 Relative path is the path from theme root dir e.g. blog/articles.html |
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113 """ |
| 3028 | 114 if template.startswith("("): |
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115 # site and/or theme are specified |
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116 try: |
| 3028 | 117 theme_end = template.index(")") |
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118 except IndexError: |
| 3028 | 119 raise ValueError("incorrect site/theme in template") |
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120 theme_data = template[1:theme_end] |
| 3028 | 121 theme_splitted = theme_data.split('/') |
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122 if len(theme_splitted) == 1: |
| 3028 | 123 site, theme = "", theme_splitted[0] |
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124 elif len(theme_splitted) == 2: |
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125 site, theme = theme_splitted |
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126 else: |
| 3028 | 127 raise ValueError("incorrect site/theme in template") |
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128 template_path = template[theme_end+1:] |
| 3028 | 129 if not template_path or template_path.startswith("/"): |
| 130 raise ValueError("incorrect template path") | |
| 131 elif template.startswith("/"): | |
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132 # this is an absolute path, so we have no site and no theme |
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133 site = None |
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134 theme = None |
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135 template_path = template |
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136 else: |
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137 # a default template |
| 3028 | 138 site = "" |
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139 theme = C.TEMPLATE_THEME_DEFAULT |
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140 template_path = template |
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141 |
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142 if site is not None: |
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143 site = site.strip() |
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144 if not site: |
| 3028 | 145 site = "" |
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146 elif site in SITE_RESERVED_NAMES: |
| 3028 | 147 raise ValueError(_("{site} can't be used as site name, " |
| 148 "it's reserved.").format(site=site)) | |
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149 |
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150 if theme is not None: |
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151 theme = theme.strip() |
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152 if not theme: |
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153 theme = C.TEMPLATE_THEME_DEFAULT |
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154 if RE_TPL_RESERVED_CHARS.search(theme): |
| 3028 | 155 raise ValueError(_("{theme} contain forbidden char. Following chars " |
| 156 "are forbidden: {reserved}").format( | |
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157 theme=theme, reserved=TPL_RESERVED_CHARS)) |
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158 |
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159 return TemplateData(site, theme, template_path) |
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160 |
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161 @staticmethod |
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162 def getSitesAndThemes(site, theme): |
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163 """Get sites and themes to check for template/file |
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164 |
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165 Will add default theme and default site in search list when suitable |
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166 @param site(unicode): site requested |
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167 @param theme(unicode): theme requested |
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168 @return (list[tuple[unicode, unicode]]): site and theme couples to check |
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169 """ |
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170 sites_and_themes = [[site, theme]] |
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171 if theme != C.TEMPLATE_THEME_DEFAULT: |
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172 sites_and_themes.append([site, C.TEMPLATE_THEME_DEFAULT]) |
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173 if site: |
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174 # the site is not the default one, so we add default at the end |
| 3028 | 175 sites_and_themes.append(['', C.TEMPLATE_THEME_DEFAULT]) |
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176 return sites_and_themes |
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177 |
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178 def _get_template_f(self, site, theme, path_elts): |
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179 """Look for template and return opened file if found |
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180 |
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181 @param site(unicode): names of site to check |
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182 (default site will also checked) |
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183 @param theme(unicode): theme to check (default theme will also be checked) |
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184 @param path_elts(iterable[str]): elements of template path |
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185 @return (tuple[(File, None), (str, None)]): a tuple with: |
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186 - opened template, or None if not found |
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187 - absolute file path, or None if not found |
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188 """ |
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189 if site is None: |
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190 raise exceptions.InternalError( |
| 3028 | 191 "_get_template_f must not be used with absolute path") |
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192 for site, theme in self.getSitesAndThemes(site, theme): |
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193 try: |
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194 base_path = self.sites_paths[site] |
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195 except KeyError: |
| 3028 | 196 log.warning(_("Unregistered site requested: {site}").format( |
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197 site=site)) |
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198 filepath = os.path.join(base_path, C.TEMPLATE_TPL_DIR, theme, *path_elts) |
| 3028 | 199 f = utils.open_if_exists(filepath, 'r') |
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200 if f is not None: |
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201 return f, filepath |
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202 return None, None |
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203 |
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204 def get_source(self, environment, template): |
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205 """Retrieve source handling site and themes |
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206 |
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207 If the path is absolute it is used directly if in trusted environment |
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208 else and exception is raised. |
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209 if the path is just relative, "default" theme is used. |
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210 @raise PermissionError: absolute path used in untrusted environment |
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211 """ |
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212 site, theme, template_path = self.parse_template(template) |
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213 |
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214 if site is None: |
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215 # we have an abolute template |
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216 if theme is not None: |
| 3028 | 217 raise exceptions.InternalError("We can't have a theme with absolute " |
| 218 "template.") | |
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219 if not self.trusted: |
| 3028 | 220 log.error(_("Absolute template used while unsecure is disabled, hack " |
| 221 "attempt? Template: {template}").format(template=template)) | |
| 222 raise exceptions.PermissionError("absolute template is not allowed") | |
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223 filepath = template_path |
| 3028 | 224 f = utils.open_if_exists(filepath, 'r') |
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225 else: |
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226 # relative path, we have to deal with site and theme |
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227 assert theme and template_path |
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228 path_elts = split_template_path(template_path) |
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229 # if we have non default site, we check it first, else we only check default |
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230 f, filepath = self._get_template_f(site, theme, path_elts) |
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231 |
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232 if f is None: |
| 3028 | 233 if (site is not None and path_elts[0] == "error" |
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234 and os.path.splitext(template_path)[1][1:] in HTML_EXT): |
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235 # if an HTML error is requested but doesn't exist, we try again |
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236 # with base error. |
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237 f, filepath = self._get_template_f( |
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238 site, theme, ("error", "base.html")) |
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239 if f is None: |
| 3028 | 240 raise exceptions.InternalError("error/base.html should exist") |
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241 else: |
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242 raise TemplateNotFound(template) |
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243 |
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244 try: |
| 3028 | 245 contents = f.read() |
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246 finally: |
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247 f.close() |
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248 |
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249 mtime = os.path.getmtime(filepath) |
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250 |
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251 def uptodate(): |
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252 try: |
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253 return os.path.getmtime(filepath) == mtime |
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254 except OSError: |
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255 return False |
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256 |
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257 return contents, filepath, uptodate |
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258 |
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259 |
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260 class Indexer(object): |
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261 """Index global to a page""" |
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262 |
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263 def __init__(self): |
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264 self._indexes = {} |
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265 |
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266 def next(self, value): |
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267 if value not in self._indexes: |
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268 self._indexes[value] = 0 |
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269 return 0 |
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270 self._indexes[value] += 1 |
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271 return self._indexes[value] |
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272 |
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273 def current(self, value): |
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274 return self._indexes.get(value) |
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275 |
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276 |
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277 class ScriptsHandler(object): |
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278 def __init__(self, renderer, template_data): |
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279 self.renderer = renderer |
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280 self.template_data = template_data |
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281 self.scripts = [] # we don't use a set because order may be important |
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282 |
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283 def include(self, library_name, attribute="defer"): |
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284 """Mark that a script need to be imported. |
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285 |
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286 Must be used before base.html is extended, as <script> are generated there. |
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287 If called several time with the same library, it will be imported once. |
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288 @param library_name(unicode): name of the library to import |
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289 @param loading: |
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290 """ |
| 3028 | 291 if attribute not in ("defer", "async", ""): |
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292 raise exceptions.DataError( |
| 3028 | 293 _('Invalid attribute, please use one of "defer", "async" or ""') |
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294 ) |
| 3028 | 295 if not library_name.endswith(".js"): |
| 296 library_name = library_name + ".js" | |
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297 if (library_name, attribute) not in self.scripts: |
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298 self.scripts.append((library_name, attribute)) |
| 3028 | 299 return "" |
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300 |
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301 def generate_scripts(self): |
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302 """Generate the <script> elements |
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303 |
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304 @return (unicode): <scripts> HTML tags |
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305 """ |
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306 scripts = [] |
| 3028 | 307 tpl = "<script src={src} {attribute}></script>" |
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308 for library, attribute in self.scripts: |
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309 library_path = self.renderer.getStaticPath(self.template_data, library) |
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310 if library_path is None: |
| 3028 | 311 log.warning(_("Can't find {libary} javascript library").format( |
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312 library=library)) |
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313 continue |
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314 path = self.renderer.getFrontURL(library_path) |
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315 scripts.append(tpl.format(src=quoteattr(path), attribute=attribute)) |
| 3028 | 316 return safe("\n".join(scripts)) |
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317 |
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318 |
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319 class Environment(jinja2.Environment): |
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320 |
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321 def get_template(self, name, parent=None, globals=None): |
| 3028 | 322 if name[0] not in ('/', '('): |
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323 # if name is not an absolute path or a full template name (this happen on |
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324 # extend or import during rendering), we convert it to a full template name. |
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325 # This is needed to handle cache correctly when a base template is overriden. |
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326 # Without that, we could not distinguish something like base/base.html if |
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327 # it's launched from some_site/some_theme or from [default]/default |
| 3028 | 328 name = "({site}/{theme}){template}".format( |
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329 site=self._template_data.site, |
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330 theme=self._template_data.theme, |
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331 template=name) |
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332 |
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333 return super(Environment, self).get_template(name, parent, globals) |
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334 |
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335 |
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336 class Renderer(object): |
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337 |
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338 def __init__(self, host, front_url_filter=None, trusted=False, private=False): |
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339 """ |
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340 @param front_url_filter(callable): filter to retrieve real url of a directory/file |
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341 The callable will get a two arguments: |
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342 - a dict with a "template_data" key containing TemplateData instance of |
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343 current template. Only site and theme should be necessary. |
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344 - the relative URL of the file to retrieve, relative from theme root |
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345 None to use default filter which return real path on file |
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346 Need to be specified for web rendering, to reflect URL seen by end user |
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347 @param trusted(bool): if True, allow to access absolute path |
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348 Only set to True if environment is safe (e.g. command line tool) |
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349 @param private(bool): if True, also load sites from sites_path_private_dict |
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350 """ |
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351 self.host = host |
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352 self.trusted = trusted |
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353 self.sites_paths = { |
| 3028 | 354 "": os.path.dirname(sat_templates.__file__), |
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355 } |
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356 self.sites_themes = { |
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357 } |
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358 conf = config.parseMainConf() |
| 3028 | 359 public_sites = config.getConfig(conf, None, "sites_path_public_dict", {}) |
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360 sites_data = [public_sites] |
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361 if private: |
| 3028 | 362 private_sites = config.getConfig(conf, None, "sites_path_private_dict", {}) |
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363 sites_data.append(private_sites) |
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364 for sites in sites_data: |
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365 normalised = {} |
| 3028 | 366 for name, path in sites.items(): |
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367 if RE_TPL_RESERVED_CHARS.search(name): |
| 3028 | 368 log.warning(_("Can't add \"{name}\" site, it contains forbidden " |
| 369 "characters. Forbidden characters are {forbidden}.") | |
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370 .format(name=name, forbidden=TPL_RESERVED_CHARS)) |
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371 continue |
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372 path = os.path.expanduser(os.path.normpath(path)) |
| 3028 | 373 if not path or not path.startswith("/"): |
| 374 log.warning(_("Can't add \"{name}\" site, it should map to an " | |
| 375 "absolute path").format(name=name)) | |
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376 continue |
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377 normalised[name] = path |
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378 self.sites_paths.update(normalised) |
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379 |
|
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380 for site, site_path in self.sites_paths.items(): |
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381 tpl_path = Path(site_path) / C.TEMPLATE_TPL_DIR |
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382 for p in tpl_path.iterdir(): |
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383 if not p.is_dir(): |
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384 continue |
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385 log.debug(f"theme found for {site or 'default site'}: {p.name}") |
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386 theme_data = self.sites_themes.setdefault(site, {})[p.name] = {'path': p} |
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387 browser_path = p / BROWSER_DIR |
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388 if browser_path.is_dir(): |
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389 theme_data['browser_path'] = browser_path |
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390 browser_meta_path = browser_path / BROWSER_META_FILE |
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391 if browser_meta_path.is_file(): |
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392 try: |
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393 with browser_meta_path.open() as f: |
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394 theme_data['browser_meta'] = json.load(f) |
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395 except Exception as e: |
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396 log.error( |
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397 f"Can't parse browser metadata at {browser_meta_path}: {e}" |
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398 ) |
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399 continue |
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400 |
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401 self.env = Environment( |
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402 loader=TemplateLoader(sites_paths=self.sites_paths, trusted=trusted), |
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403 autoescape=jinja2.select_autoescape(["html", "xhtml", "xml"]), |
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404 trim_blocks=True, |
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405 lstrip_blocks=True, |
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406 extensions=["jinja2.ext.i18n"], |
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407 ) |
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408 self.env._template_data = None |
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409 self._locale_str = C.DEFAULT_LOCALE |
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410 self._locale = Locale.parse(self._locale_str) |
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411 self.installTranslations() |
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412 |
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413 # we want to have access to SàT constants in templates |
| 3028 | 414 self.env.globals["C"] = C |
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415 |
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416 # custom filters |
| 3028 | 417 self.env.filters["next_gidx"] = self._next_gidx |
| 418 self.env.filters["cur_gidx"] = self._cur_gidx | |
| 419 self.env.filters["date_fmt"] = self._date_fmt | |
| 420 self.env.filters["xmlui_class"] = self._xmlui_class | |
| 421 self.env.filters["attr_escape"] = self.attr_escape | |
| 422 self.env.filters["item_filter"] = self._item_filter | |
| 423 self.env.filters["adv_format"] = self._adv_format | |
| 424 self.env.filters["dict_ext"] = self._dict_ext | |
| 425 self.env.filters["highlight"] = self.highlight | |
| 426 self.env.filters["front_url"] = (self._front_url if front_url_filter is None | |
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427 else front_url_filter) |
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428 # custom tests |
| 3028 | 429 self.env.tests["in_the_past"] = self._in_the_past |
| 430 self.icons_path = os.path.join(host.media_dir, "fonts/fontello/svg") | |
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431 |
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432 # policies |
| 3028 | 433 self.env.policies["ext.i18n.trimmed"] = True |
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434 |
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435 def getFrontURL(self, template_data, path=None): |
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436 """Give front URL (i.e. URL seen by end-user) of a path |
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437 |
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438 @param template_data[TemplateData]: data of current template |
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439 @param path(unicode, None): relative path of file to get, |
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440 if set, will remplate template_data.path |
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441 """ |
| 3028 | 442 return self.env.filters["front_url"]({"template_data": template_data}, |
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443 path or template_data.path) |
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444 |
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445 def installTranslations(self): |
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446 # TODO: support multi translation |
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447 # for now, only translations in sat_templates are handled |
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448 self.translations = {} |
| 3028 | 449 for site_key, site_path in self.sites_paths.items(): |
| 450 site_prefix = "[{}] ".format(site_key) if site_key else '' | |
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451 i18n_dir = os.path.join(site_path, "i18n") |
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452 for lang_dir in os.listdir(i18n_dir): |
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453 lang_path = os.path.join(i18n_dir, lang_dir) |
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454 if not os.path.isdir(lang_path): |
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455 continue |
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456 po_path = os.path.join(lang_path, "LC_MESSAGES/sat.mo") |
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457 try: |
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458 locale = Locale.parse(lang_dir) |
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459 with open(po_path, "rb") as f: |
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460 try: |
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461 translations = self.translations[locale] |
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462 except KeyError: |
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463 self.translations[locale] = support.Translations(f, "sat") |
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464 else: |
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465 translations.merge(support.Translations(f, "sat")) |
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466 except EnvironmentError: |
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467 log.error( |
| 3028 | 468 _("Can't find template translation at {path}").format( |
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469 path=po_path)) |
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470 except UnknownLocaleError as e: |
| 3028 | 471 log.error(_("{site}Invalid locale name: {msg}").format( |
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472 site=site_prefix, msg=e)) |
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473 else: |
| 3028 | 474 log.info(_("{site}loaded {lang} templates translations").format( |
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475 site = site_prefix, |
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476 lang=lang_dir)) |
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|
477 |
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478 default_locale = Locale.parse(self._locale_str) |
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479 if default_locale not in self.translations: |
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480 # default locale disable gettext, |
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481 # so we can use None instead of a Translations instance |
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482 self.translations[default_locale] = None |
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483 |
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484 self.env.install_null_translations(True) |
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485 # we generate a tuple of locales ordered by display name that templates can access |
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486 # through the "locales" variable |
| 3028 | 487 self.locales = tuple(sorted(list(self.translations.keys()), |
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488 key=lambda l: l.language_name.lower())) |
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489 |
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490 |
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491 def setLocale(self, locale_str): |
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492 """set current locale |
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493 |
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494 change current translation locale and self self._locale and self._locale_str |
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495 """ |
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496 if locale_str == self._locale_str: |
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497 return |
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498 if locale_str == "en": |
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499 # we default to GB English when it's not specified |
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500 # one of the main reason is to avoid the nonsense U.S. short date format |
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501 locale_str = "en_GB" |
|
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502 try: |
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503 locale = Locale.parse(locale_str) |
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504 except ValueError as e: |
| 3028 | 505 log.warning(_("invalid locale value: {msg}").format(msg=e)) |
|
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506 locale_str = self._locale_str = C.DEFAULT_LOCALE |
|
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507 locale = Locale.parse(locale_str) |
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508 |
| 3028 | 509 locale_str = str(locale) |
|
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510 if locale_str != C.DEFAULT_LOCALE: |
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511 try: |
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512 translations = self.translations[locale] |
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513 except KeyError: |
| 3028 | 514 log.warning(_("Can't find locale {locale}".format(locale=locale))) |
|
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515 locale_str = C.DEFAULT_LOCALE |
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516 locale = Locale.parse(self._locale_str) |
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517 else: |
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518 self.env.install_gettext_translations(translations, True) |
| 3028 | 519 log.debug(_("Switched to {lang}").format(lang=locale.english_name)) |
|
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520 |
|
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|
521 if locale_str == C.DEFAULT_LOCALE: |
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522 self.env.install_null_translations(True) |
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523 |
|
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524 self._locale = locale |
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525 self._locale_str = locale_str |
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526 |
|
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527 def getThemeAndRoot(self, template): |
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528 """retrieve theme and root dir of a given tempalte |
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|
529 |
|
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|
530 @param template(unicode): template to parse |
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|
531 @return (tuple[unicode, unicode]): theme and absolute path to theme's root dir |
|
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532 @raise NotFound: requested site has not been found |
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533 """ |
|
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534 # FIXME: check use in jp, and include site |
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535 site, theme, __ = self.env.loader.parse_template(template) |
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536 if site is None: |
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|
537 # absolute template |
| 3028 | 538 return "", os.path.dirname(template) |
|
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|
539 try: |
|
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|
540 site_root_dir = self.sites_paths[site] |
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|
541 except KeyError: |
|
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|
542 raise exceptions.NotFound |
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543 return theme, os.path.join(site_root_dir, C.TEMPLATE_TPL_DIR, theme) |
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|
544 |
|
3266
8ec5ddb4e759
tools (common/template): list themes and parse their browser data, available through new `getThemesData` method
Goffi <goffi@goffi.org>
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|
545 def getThemesData(self, site_name): |
|
8ec5ddb4e759
tools (common/template): list themes and parse their browser data, available through new `getThemesData` method
Goffi <goffi@goffi.org>
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|
546 try: |
|
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Goffi <goffi@goffi.org>
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|
547 return self.sites_themes[site_name] |
|
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tools (common/template): list themes and parse their browser data, available through new `getThemesData` method
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|
548 except KeyError: |
|
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Goffi <goffi@goffi.org>
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|
549 raise exceptions.NotFound(f"no theme found for {site_name}") |
|
8ec5ddb4e759
tools (common/template): list themes and parse their browser data, available through new `getThemesData` method
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diff
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|
550 |
|
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|
551 def getStaticPath(self, template_data, filename): |
|
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|
552 """Retrieve path of a static file if it exists with current theme or default |
|
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parents:
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|
553 |
|
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|
554 File will be looked at <site_root_dir>/<theme_dir>/<static_dir>/filename, |
|
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tools (common/template), jp: refactoring to handle multiple sites:
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|
555 then <site_root_dir>/<default_theme_dir>/<static_dir>/filename anf finally |
|
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tools (common/template), jp: refactoring to handle multiple sites:
Goffi <goffi@goffi.org>
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|
556 <default_site>/<default_theme_dir>/<static_dir> (i.e. sat_templates). |
|
0fa217fafabf
tools (common/template), jp: refactoring to handle multiple sites:
Goffi <goffi@goffi.org>
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diff
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|
557 In case of absolue URL, base dir of template is used as base. For instance if |
|
0fa217fafabf
tools (common/template), jp: refactoring to handle multiple sites:
Goffi <goffi@goffi.org>
parents:
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diff
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|
558 template is an absolute template to "/some/path/template.html", file will be |
|
0fa217fafabf
tools (common/template), jp: refactoring to handle multiple sites:
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diff
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|
559 checked at "/some/path/<filename>" |
|
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tools (common/template), jp: refactoring to handle multiple sites:
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|
560 @param template_data(TemplateData): data of current template |
|
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Goffi <goffi@goffi.org>
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|
561 @return (TemplateData, None): built template data instance where .path is |
|
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tools (common/template), jp: refactoring to handle multiple sites:
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diff
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|
562 the relative path to the file, from theme root dir. |
|
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tools (common/template), jp: refactoring to handle multiple sites:
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|
563 None if not found. |
|
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|
564 """ |
|
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|
565 if template_data.site is None: |
|
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Goffi <goffi@goffi.org>
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diff
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|
566 # we have and absolue path |
|
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tools (common/template), jp: refactoring to handle multiple sites:
Goffi <goffi@goffi.org>
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|
567 if (not template_data.theme is None |
| 3028 | 568 or not template_data.path.startswith('/')): |
|
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parents:
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diff
changeset
|
569 raise exceptions.InternalError( |
| 3028 | 570 "invalid template data, was expecting absolute URL") |
|
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|
571 static_dir = os.path.dirname(template_data.path) |
|
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tools (common/template), jp: refactoring to handle multiple sites:
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|
572 file_path = os.path.join(static_dir, filename) |
|
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tools (common/template), jp: refactoring to handle multiple sites:
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|
573 if os.path.exists(file_path): |
|
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|
574 return TemplateData(site=None, theme=None, path=file_path) |
|
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|
575 else: |
|
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Goffi <goffi@goffi.org>
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|
576 return None |
|
2245
e09048cb7595
core (tools/common/template): helping methods/filters for templates:
Goffi <goffi@goffi.org>
parents:
2169
diff
changeset
|
577 |
|
2671
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parents:
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changeset
|
578 sites_and_themes = TemplateLoader.getSitesAndThemes(template_data.site, |
|
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|
579 template_data.theme) |
|
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tools (common/template), jp: refactoring to handle multiple sites:
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parents:
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diff
changeset
|
580 for site, theme in sites_and_themes: |
|
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tools (common/template), jp: refactoring to handle multiple sites:
Goffi <goffi@goffi.org>
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diff
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|
581 site_root_dir = self.sites_paths[site] |
|
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tools (common/template), jp: refactoring to handle multiple sites:
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changeset
|
582 relative_path = os.path.join(C.TEMPLATE_STATIC_DIR, filename) |
|
0fa217fafabf
tools (common/template), jp: refactoring to handle multiple sites:
Goffi <goffi@goffi.org>
parents:
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diff
changeset
|
583 absolute_path = os.path.join(site_root_dir, C.TEMPLATE_TPL_DIR, |
|
0fa217fafabf
tools (common/template), jp: refactoring to handle multiple sites:
Goffi <goffi@goffi.org>
parents:
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diff
changeset
|
584 theme, relative_path) |
|
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tools (common/template), jp: refactoring to handle multiple sites:
Goffi <goffi@goffi.org>
parents:
2624
diff
changeset
|
585 if os.path.exists(absolute_path): |
|
0fa217fafabf
tools (common/template), jp: refactoring to handle multiple sites:
Goffi <goffi@goffi.org>
parents:
2624
diff
changeset
|
586 return TemplateData(site=site, theme=theme, path=relative_path) |
|
0fa217fafabf
tools (common/template), jp: refactoring to handle multiple sites:
Goffi <goffi@goffi.org>
parents:
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diff
changeset
|
587 |
|
0fa217fafabf
tools (common/template), jp: refactoring to handle multiple sites:
Goffi <goffi@goffi.org>
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588 return None |
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589 |
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590 def _appendCSSPaths(self, template_data, css_files, css_files_noscript, name_root): |
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591 """Append found css to css_files and css_files_noscript |
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592 |
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593 @param css_files(list): list to fill of relative path to found css file |
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594 @param css_files_noscript(list): list to fill of relative path to found css file |
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595 with "_noscript" suffix |
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596 """ |
| 3028 | 597 name = name_root + ".css" |
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598 css_path = self.getStaticPath(template_data, name) |
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599 if css_path is not None: |
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600 css_files.append(self.getFrontURL(css_path)) |
| 3028 | 601 noscript_name = name_root + "_noscript.css" |
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602 noscript_path = self.getStaticPath(template_data, noscript_name) |
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603 if noscript_path is not None: |
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604 css_files_noscript.append(self.getFrontURL(noscript_path)) |
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605 |
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606 def getCSSFiles(self, template_data): |
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607 """Retrieve CSS files to use according template_data |
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608 |
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609 For each element of the path, a .css file is looked for in /static, and returned |
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610 if it exists. |
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611 Previous element are kept by replacing '/' with '_'. |
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612 styles_extra.css, styles.css, highlight.css and fonts.css are always used if they |
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613 exist. |
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614 For each found file, if a file with the same name and "_noscript" suffix exists, |
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615 it will be return is second part of resulting tuple. |
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616 For instance, if template_data is (some_site, some_theme, blog/articles.html), |
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617 following files are returned, earch time trying [some_site root] first, |
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618 then default site (i.e. sat_templates) root: |
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619 - some_theme/static/styles.css is returned if it exists |
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620 else default/static/styles.css |
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621 - some_theme/static/blog.css is returned if it exists |
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622 else default/static/blog.css (if it exists too) |
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623 - some_theme/static/blog_articles.css is returned if it exists |
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624 else default/static/blog_articles.css (if it exists too) |
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625 and for each found files, if same file with _noscript suffix exists, it is put |
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626 in noscript list (for instance (some_theme/static/styles_noscript.css)). |
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627 @param template_data(TemplateData): data of the current template |
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628 @return (tuple[list[unicode], list[unicode]]): a tuple with: |
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629 - front URLs of CSS files to use |
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630 - front URLs of CSS files to use when scripts are not enabled |
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631 """ |
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632 # TODO: some caching would be nice |
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633 css_files = [] |
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634 css_files_noscript = [] |
| 3028 | 635 path_elems = template_data.path.split('/') |
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636 path_elems[-1] = os.path.splitext(path_elems[-1])[0] |
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637 |
| 3028 | 638 css_path = self.getStaticPath(template_data, 'fonts.css') |
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639 if css_path is not None: |
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640 css_files.append(self.getFrontURL(css_path)) |
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641 |
| 3028 | 642 for name_root in ('styles', 'styles_extra', 'highlight'): |
| 2683 | 643 self._appendCSSPaths(template_data, css_files, css_files_noscript, name_root) |
| 644 | |
| 3028 | 645 for idx in range(len(path_elems)): |
| 646 name_root = "_".join(path_elems[:idx+1]) | |
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647 self._appendCSSPaths(template_data, css_files, css_files_noscript, name_root) |
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648 |
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649 return css_files, css_files_noscript |
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650 |
|
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651 ## custom filters ## |
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652 |
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653 @contextfilter |
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654 def _front_url(self, ctx, relative_url): |
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655 """Get front URL (URL seen by end-user) from a relative URL |
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656 |
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657 This default method return absolute full path |
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658 """ |
| 3028 | 659 template_data = ctx['template_data'] |
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660 if template_data.site is None: |
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661 assert template_data.theme is None |
| 3028 | 662 assert template_data.path.startswith("/") |
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663 return os.path.join(os.path.dirname(template_data.path, relative_url)) |
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664 |
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665 site_root_dir = self.sites_paths[template_data.site] |
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666 return os.path.join(site_root_dir, C.TEMPLATE_TPL_DIR, template_data.theme, |
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667 relative_url) |
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668 |
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669 @contextfilter |
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670 def _next_gidx(self, ctx, value): |
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671 """Use next current global index as suffix""" |
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672 next_ = ctx["gidx"].next(value) |
| 3028 | 673 return value if next_ == 0 else "{}_{}".format(value, next_) |
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674 |
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675 @contextfilter |
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676 def _cur_gidx(self, ctx, value): |
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677 """Use current current global index as suffix""" |
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678 current = ctx["gidx"].current(value) |
| 3028 | 679 return value if not current else "{}_{}".format(value, current) |
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680 |
|
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681 def _date_fmt(self, timestamp, fmt="short", date_only=False, auto_limit=None, |
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682 auto_old_fmt=None): |
|
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683 if is_undefined(fmt): |
| 3028 | 684 fmt = "short" |
|
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685 try: |
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686 return date_utils.date_fmt( |
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687 timestamp, fmt, date_only, auto_limit, auto_old_fmt, |
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688 locale_str = self._locale_str |
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689 ) |
|
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690 except Exception as e: |
| 3028 | 691 log.warning(_("Can't parse date: {msg}").format(msg=e)) |
|
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692 return timestamp |
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693 |
|
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694 def attr_escape(self, text): |
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695 """escape a text to a value usable as an attribute |
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696 |
|
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697 remove spaces, and put in lower case |
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698 """ |
| 3028 | 699 return RE_ATTR_ESCAPE.sub("_", text.strip().lower())[:50] |
|
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700 |
|
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701 def _xmlui_class(self, xmlui_item, fields): |
|
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702 """return classes computed from XMLUI fields name |
|
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Goffi <goffi@goffi.org>
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|
703 |
|
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template: new "xmlui_class" filter compute class names from name/values of requested fields.
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|
704 will return a string with a series of escaped {name}_{value} separated by spaces. |
|
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|
705 @param xmlui_item(xmlui.XMLUIPanel): XMLUI containing the widgets to use |
|
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diff
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|
706 @param fields(iterable(unicode)): names of the widgets to use |
|
d14c1a3e3244
template: new "xmlui_class" filter compute class names from name/values of requested fields.
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diff
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|
707 @return (unicode, None): computer string to use as class attribute value |
|
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Goffi <goffi@goffi.org>
parents:
2323
diff
changeset
|
708 None if no field was specified |
|
d14c1a3e3244
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Goffi <goffi@goffi.org>
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2323
diff
changeset
|
709 """ |
|
d14c1a3e3244
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
|
710 classes = [] |
|
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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|
711 for name in fields: |
|
d14c1a3e3244
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
|
712 escaped_name = self.attr_escape(name) |
|
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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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|
713 try: |
|
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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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|
714 for value in xmlui_item.widgets[name].values: |
|
2624
56f94936df1e
code style reformatting using black
Goffi <goffi@goffi.org>
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diff
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|
715 classes.append(escaped_name + "_" + self.attr_escape(value)) |
|
2384
d14c1a3e3244
template: new "xmlui_class" filter compute class names from name/values of requested fields.
Goffi <goffi@goffi.org>
parents:
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diff
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|
716 except KeyError: |
|
2624
56f94936df1e
code style reformatting using black
Goffi <goffi@goffi.org>
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2599
diff
changeset
|
717 log.debug( |
| 3028 | 718 _('ignoring field "{name}": it doesn\'t exists').format(name=name) |
|
2624
56f94936df1e
code style reformatting using black
Goffi <goffi@goffi.org>
parents:
2599
diff
changeset
|
719 ) |
|
2384
d14c1a3e3244
template: new "xmlui_class" filter compute class names from name/values of requested fields.
Goffi <goffi@goffi.org>
parents:
2323
diff
changeset
|
720 continue |
| 3028 | 721 return " ".join(classes) or None |
|
2384
d14c1a3e3244
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
|
722 |
|
2675
39d187f3698d
template: import contextfilter as module attribute
Goffi <goffi@goffi.org>
parents:
2671
diff
changeset
|
723 @contextfilter |
|
2422
5425cf18929b
template: fixed the use of eval_context_filter in item_filter
Goffi <goffi@goffi.org>
parents:
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diff
changeset
|
724 def _item_filter(self, ctx, item, filters): |
| 2402 | 725 """return item's value, filtered if suitable |
| 726 | |
| 727 @param item(object): item to filter | |
| 728 value must have name and value attributes, | |
| 729 mostly used for XMLUI items | |
| 730 @param filters(dict[unicode, (callable, dict, None)]): map of name => filter | |
| 731 if filter is None, return the value unchanged | |
| 732 if filter is a callable, apply it | |
| 733 if filter is a dict, it can have following keys: | |
| 734 - filters: iterable of filters to apply | |
|
2671
0fa217fafabf
tools (common/template), jp: refactoring to handle multiple sites:
Goffi <goffi@goffi.org>
parents:
2624
diff
changeset
|
735 - 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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diff
changeset
|
736 dict if needed) |
| 2402 | 737 - template: template to format where {value} is the filtered value |
| 738 """ | |
| 739 value = item.value | |
| 740 filter_ = filters.get(item.name, None) | |
| 741 if filter_ is None: | |
| 742 return value | |
| 743 elif isinstance(filter_, dict): | |
| 3028 | 744 filters_args = filter_.get("filters_args") |
| 745 for idx, f_name in enumerate(filter_.get("filters", [])): | |
|
2422
5425cf18929b
template: fixed the use of eval_context_filter in item_filter
Goffi <goffi@goffi.org>
parents:
2414
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changeset
|
746 kwargs = filters_args[idx] if filters_args is not None else {} |
|
5425cf18929b
template: fixed the use of eval_context_filter in item_filter
Goffi <goffi@goffi.org>
parents:
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|
747 filter_func = self.env.filters[f_name] |
|
5425cf18929b
template: fixed the use of eval_context_filter in item_filter
Goffi <goffi@goffi.org>
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diff
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|
748 try: |
|
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Goffi <goffi@goffi.org>
parents:
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diff
changeset
|
749 eval_context_filter = filter_func.evalcontextfilter |
|
5425cf18929b
template: fixed the use of eval_context_filter in item_filter
Goffi <goffi@goffi.org>
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|
750 except AttributeError: |
|
5425cf18929b
template: fixed the use of eval_context_filter in item_filter
Goffi <goffi@goffi.org>
parents:
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changeset
|
751 eval_context_filter = False |
|
5425cf18929b
template: fixed the use of eval_context_filter in item_filter
Goffi <goffi@goffi.org>
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diff
changeset
|
752 |
|
5425cf18929b
template: fixed the use of eval_context_filter in item_filter
Goffi <goffi@goffi.org>
parents:
2414
diff
changeset
|
753 if eval_context_filter: |
|
5425cf18929b
template: fixed the use of eval_context_filter in item_filter
Goffi <goffi@goffi.org>
parents:
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diff
changeset
|
754 value = filter_func(ctx.eval_ctx, value, **kwargs) |
|
5425cf18929b
template: fixed the use of eval_context_filter in item_filter
Goffi <goffi@goffi.org>
parents:
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diff
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|
755 else: |
|
5425cf18929b
template: fixed the use of eval_context_filter in item_filter
Goffi <goffi@goffi.org>
parents:
2414
diff
changeset
|
756 value = filter_func(value, **kwargs) |
| 3028 | 757 template = filter_.get("template") |
|
2422
5425cf18929b
template: fixed the use of eval_context_filter in item_filter
Goffi <goffi@goffi.org>
parents:
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diff
changeset
|
758 if template: |
|
5425cf18929b
template: fixed the use of eval_context_filter in item_filter
Goffi <goffi@goffi.org>
parents:
2414
diff
changeset
|
759 # format will return a string, so we need to check first |
|
5425cf18929b
template: fixed the use of eval_context_filter in item_filter
Goffi <goffi@goffi.org>
parents:
2414
diff
changeset
|
760 # 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
Goffi <goffi@goffi.org>
parents:
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diff
changeset
|
761 is_safe = isinstance(value, safe) |
|
5425cf18929b
template: fixed the use of eval_context_filter in item_filter
Goffi <goffi@goffi.org>
parents:
2414
diff
changeset
|
762 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
|
763 if is_safe: |
|
5425cf18929b
template: fixed the use of eval_context_filter in item_filter
Goffi <goffi@goffi.org>
parents:
2414
diff
changeset
|
764 value = safe(value) |
|
5425cf18929b
template: fixed the use of eval_context_filter in item_filter
Goffi <goffi@goffi.org>
parents:
2414
diff
changeset
|
765 return value |
| 2402 | 766 |
|
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
|
767 def _adv_format(self, value, template, **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
|
768 """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:
2385
diff
changeset
|
769 |
|
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
|
770 like format() method, but take care or special values like 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
|
771 @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>
parents:
2385
diff
changeset
|
772 @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
|
773 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
|
774 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
|
775 @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:
2385
diff
changeset
|
776 """ |
|
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
|
777 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
|
778 return value |
|
2624
56f94936df1e
code style reformatting using black
Goffi <goffi@goffi.org>
parents:
2599
diff
changeset
|
779 # jinja use string when no special char is used, so we have to convert to unicode |
| 3028 | 780 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
|
781 |
|
2425
d294527bd46f
template: added dict_ext filter to extend a dictionary
Goffi <goffi@goffi.org>
parents:
2422
diff
changeset
|
782 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
|
783 """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:
2422
diff
changeset
|
784 |
|
d294527bd46f
template: added dict_ext filter to extend a dictionary
Goffi <goffi@goffi.org>
parents:
2422
diff
changeset
|
785 @param source_dict(dict): dictionary to extend |
|
d294527bd46f
template: added dict_ext filter to extend a dictionary
Goffi <goffi@goffi.org>
parents:
2422
diff
changeset
|
786 @param extra_dict(dict, None): dictionary to use to extend first one |
|
d294527bd46f
template: added dict_ext filter to extend a dictionary
Goffi <goffi@goffi.org>
parents:
2422
diff
changeset
|
787 None to return source_dict unmodified |
|
d294527bd46f
template: added dict_ext filter to extend a dictionary
Goffi <goffi@goffi.org>
parents:
2422
diff
changeset
|
788 @param key(unicode, None): if specified extra_dict[key] will be used |
|
d294527bd46f
template: added dict_ext filter to extend a dictionary
Goffi <goffi@goffi.org>
parents:
2422
diff
changeset
|
789 if it doesn't exists, a copy of unmodified source_dict is returned |
|
d294527bd46f
template: added dict_ext filter to extend a dictionary
Goffi <goffi@goffi.org>
parents:
2422
diff
changeset
|
790 @return (dict): resulting dictionary |
|
d294527bd46f
template: added dict_ext filter to extend a dictionary
Goffi <goffi@goffi.org>
parents:
2422
diff
changeset
|
791 """ |
|
d294527bd46f
template: added dict_ext filter to extend a dictionary
Goffi <goffi@goffi.org>
parents:
2422
diff
changeset
|
792 if extra_dict is None: |
|
d294527bd46f
template: added dict_ext filter to extend a dictionary
Goffi <goffi@goffi.org>
parents:
2422
diff
changeset
|
793 return source_dict |
|
d294527bd46f
template: added dict_ext filter to extend a dictionary
Goffi <goffi@goffi.org>
parents:
2422
diff
changeset
|
794 if key is not None: |
|
d294527bd46f
template: added dict_ext filter to extend a dictionary
Goffi <goffi@goffi.org>
parents:
2422
diff
changeset
|
795 extra_dict = extra_dict.get(key, {}) |
|
d294527bd46f
template: added dict_ext filter to extend a dictionary
Goffi <goffi@goffi.org>
parents:
2422
diff
changeset
|
796 ret = source_dict.copy() |
|
d294527bd46f
template: added dict_ext filter to extend a dictionary
Goffi <goffi@goffi.org>
parents:
2422
diff
changeset
|
797 ret.update(extra_dict) |
|
d294527bd46f
template: added dict_ext filter to extend a dictionary
Goffi <goffi@goffi.org>
parents:
2422
diff
changeset
|
798 return ret |
|
d294527bd46f
template: added dict_ext filter to extend a dictionary
Goffi <goffi@goffi.org>
parents:
2422
diff
changeset
|
799 |
|
2454
06ff33052354
core, template (filters): added pygments as a dependency + new highlight filter to use it.
Goffi <goffi@goffi.org>
parents:
2453
diff
changeset
|
800 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
|
801 """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
|
802 |
|
2671
0fa217fafabf
tools (common/template), jp: refactoring to handle multiple sites:
Goffi <goffi@goffi.org>
parents:
2624
diff
changeset
|
803 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:
2624
diff
changeset
|
804 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
|
805 @param code(unicode): code or markup to highlight |
|
06ff33052354
core, template (filters): added pygments as a dependency + new highlight filter to use it.
Goffi <goffi@goffi.org>
parents:
2453
diff
changeset
|
806 @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
|
807 None to autodetect it |
|
06ff33052354
core, template (filters): added pygments as a dependency + new highlight filter to use it.
Goffi <goffi@goffi.org>
parents:
2453
diff
changeset
|
808 @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
|
809 @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:
2453
diff
changeset
|
810 """ |
|
06ff33052354
core, template (filters): added pygments as a dependency + new highlight filter to use it.
Goffi <goffi@goffi.org>
parents:
2453
diff
changeset
|
811 if lexer_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
|
812 lexer_opts = {} |
|
06ff33052354
core, template (filters): added pygments as a dependency + new highlight filter to use it.
Goffi <goffi@goffi.org>
parents:
2453
diff
changeset
|
813 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
|
814 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
|
815 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
|
816 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:
2453
diff
changeset
|
817 else: |
|
06ff33052354
core, template (filters): added pygments as a dependency + new highlight filter to use it.
Goffi <goffi@goffi.org>
parents:
2453
diff
changeset
|
818 lexer = lexers.get_lexer_by_name(lexer_name, **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
|
819 formatter = formatters.HtmlFormatter(**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
|
820 return safe(pygments.highlight(code, lexer, formatter)) |
|
06ff33052354
core, template (filters): added pygments as a dependency + new highlight filter to use it.
Goffi <goffi@goffi.org>
parents:
2453
diff
changeset
|
821 |
|
2403
dec31114c402
template: improved date formatter:
Goffi <goffi@goffi.org>
parents:
2402
diff
changeset
|
822 ## custom tests ## |
|
dec31114c402
template: improved date formatter:
Goffi <goffi@goffi.org>
parents:
2402
diff
changeset
|
823 |
|
dec31114c402
template: improved date formatter:
Goffi <goffi@goffi.org>
parents:
2402
diff
changeset
|
824 def _in_the_past(self, timestamp): |
|
dec31114c402
template: improved date formatter:
Goffi <goffi@goffi.org>
parents:
2402
diff
changeset
|
825 """check if a date is in the past |
|
dec31114c402
template: improved date formatter:
Goffi <goffi@goffi.org>
parents:
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|
826 |
|
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|
827 @param timestamp(unicode, int): unix time |
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|
828 @return (bool): True if date is in the past |
|
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|
829 """ |
|
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830 return time.time() > int(timestamp) |
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831 |
| 2515 | 832 ## template methods ## |
| 833 | |
| 834 def _icon_defs(self, *names): | |
|
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835 """Define svg icons which will be used in the template. |
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|
836 |
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|
837 Their name is used as id |
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|
838 """ |
|
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839 svg_elt = etree.Element( |
|
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840 "svg", |
|
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|
841 nsmap={None: "http://www.w3.org/2000/svg"}, |
|
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842 width="0", |
|
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|
843 height="0", |
|
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844 style="display: block", |
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|
845 ) |
|
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846 defs_elt = etree.SubElement(svg_elt, "defs") |
| 2515 | 847 for name in names: |
| 3028 | 848 path = os.path.join(self.icons_path, name + ".svg") |
| 2515 | 849 icon_svg_elt = etree.parse(path).getroot() |
| 850 # we use icon name as id, so we can retrieve them easily | |
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851 icon_svg_elt.set("id", name) |
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852 if not icon_svg_elt.tag == "{http://www.w3.org/2000/svg}svg": |
| 3028 | 853 raise exceptions.DataError("invalid SVG element") |
| 2515 | 854 defs_elt.append(icon_svg_elt) |
|
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855 return safe(etree.tostring(svg_elt, encoding="unicode")) |
| 2515 | 856 |
|
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857 def _icon_use(self, name, cls=""): |
| 3028 | 858 return safe('<svg class="svg-icon{cls}" xmlns="http://www.w3.org/2000/svg" ' |
| 859 'viewBox="0 0 100 100">\n' | |
| 860 ' <use href="#{name}"/>' | |
| 861 '</svg>\n'.format(name=name, cls=(" " + cls) if cls else "")) | |
| 2515 | 862 |
|
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863 def render(self, template, site=None, theme=None, locale=C.DEFAULT_LOCALE, |
| 3028 | 864 media_path="", css_files=None, css_inline=False, **kwargs): |
|
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865 """Render a template |
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|
866 |
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867 @param template(unicode): template to render (e.g. blog/articles.html) |
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868 @param site(unicide): site name |
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869 None or empty string for defaut site (i.e. SàT templates) |
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870 @param theme(unicode): template theme |
|
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871 @param media_path(unicode): prefix of the SàT media path/URL to use for |
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|
872 template root. Must end with a u'/' |
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873 @param css_files(list[unicode],None): CSS files to used |
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874 CSS files must be in static dir of the template |
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|
875 use None for automatic selection of CSS files based on template category |
|
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876 None is recommended. General static/style.css and theme file name will be |
|
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|
877 used. |
|
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878 @param css_inline(bool): if True, CSS will be embedded in the HTML page |
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879 @param **kwargs: variable to transmit to the template |
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|
880 """ |
|
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|
881 if not template: |
| 3028 | 882 raise ValueError("template can't be empty") |
|
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883 if site is not None or theme is not None: |
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|
884 # user wants to set site and/or theme, so we add it to the template path |
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885 if site is None: |
| 3028 | 886 site = '' |
|
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|
887 if theme is None: |
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|
888 theme = C.TEMPLATE_THEME_DEFAULT |
| 3028 | 889 if template[0] == "(": |
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890 raise ValueError( |
| 3028 | 891 "you can't specify site or theme in template path and in argument " |
| 892 "at the same time" | |
|
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893 ) |
|
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|
894 |
|
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|
895 template_data = TemplateData(site, theme, template) |
| 3028 | 896 template = "({site}/{theme}){template}".format( |
|
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|
897 site=site, theme=theme, template=template) |
|
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|
898 else: |
|
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|
899 template_data = self.env.loader.parse_template(template) |
|
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900 |
|
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|
901 # we need to save template_data in environment, to load right templates when they |
|
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|
902 # are referenced from other templates (e.g. import) |
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903 # FIXME: this trick will not work anymore if we use async templates (it works |
|
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|
904 # here because we know that the rendering will be blocking until we unset |
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|
905 # _template_data) |
|
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|
906 self.env._template_data = template_data |
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|
907 |
|
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|
908 template_source = self.env.get_template(template) |
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|
909 |
|
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|
910 if css_files is None: |
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|
911 css_files, css_files_noscript = self.getCSSFiles(template_data) |
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|
912 |
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913 kwargs["icon_defs"] = self._icon_defs |
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914 kwargs["icon"] = self._icon_use |
| 2515 | 915 |
|
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|
916 if css_inline: |
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|
917 css_contents = [] |
| 3028 | 918 for files, suffix in ((css_files, ""), |
| 919 (css_files_noscript, "_noscript")): | |
|
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|
920 site_root_dir = self.sites_paths[template_data.site] |
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|
921 for css_file in files: |
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|
922 css_file_path = os.path.join(site_root_dir, css_file) |
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|
923 with open(css_file_path) as f: |
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|
924 css_contents.append(f.read()) |
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|
925 if css_contents: |
| 3028 | 926 kwargs["css_content" + suffix] = "\n".join(css_contents) |
|
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|
927 |
|
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|
928 scripts_handler = ScriptsHandler(self, template_data) |
|
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|
929 self.setLocale(locale) |
|
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|
930 |
|
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|
931 # XXX: theme used in template arguments is the requested theme, which may differ |
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932 # from actual theme if the template doesn't exist in the requested theme. |
|
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933 rendered = template_source.render( |
|
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|
934 template_data=template_data, |
|
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935 media_path=media_path, |
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|
936 css_files=css_files, |
|
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|
937 css_files_noscript=css_files_noscript, |
|
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|
938 locale=self._locale, |
|
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|
939 locales=self.locales, |
|
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940 gidx=Indexer(), |
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941 script=scripts_handler, |
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|
942 **kwargs |
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|
943 ) |
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|
944 self.env._template_data = None |
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945 return rendered |