Mercurial > libervia-backend
annotate libervia/backend/tools/common/template.py @ 4071:4b842c1fb686
refactoring: renamed `sat` package to `libervia.backend`
| author | Goffi <goffi@goffi.org> |
|---|---|
| date | Fri, 02 Jun 2023 11:49:51 +0200 |
| parents | sat/tools/common/template.py@524856bd7b19 |
| children | 47401850dec6 |
| rev | line source |
|---|---|
| 3028 | 1 #!/usr/bin/env python3 |
| 3137 | 2 |
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3 # SAT: an XMPP client |
| 3479 | 4 # Copyright (C) 2009-2021 Jérôme Poisson (goffi@goffi.org) |
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5 |
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6 # This program is free software: you can redistribute it and/or modify |
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7 # it under the terms of the GNU Affero General Public License as published by |
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8 # the Free Software Foundation, either version 3 of the License, or |
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9 # (at your option) any later version. |
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10 |
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11 # This program is distributed in the hope that it will be useful, |
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12 # but WITHOUT ANY WARRANTY; without even the implied warranty of |
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13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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14 # GNU Affero General Public License for more details. |
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15 |
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16 # You should have received a copy of the GNU Affero General Public License |
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17 # along with this program. If not, see <http://www.gnu.org/licenses/>. |
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18 |
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19 """Template generation""" |
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20 |
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21 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 datetime import datetime |
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26 from pathlib import Path |
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27 from collections import namedtuple |
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28 from typing import Optional, List, Tuple, Union |
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29 from xml.sax.saxutils import quoteattr |
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30 from babel import support |
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31 from babel import Locale |
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32 from babel.core import UnknownLocaleError |
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33 import pygments |
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34 from pygments import lexers |
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35 from pygments import formatters |
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36 from libervia.backend.core.constants import Const as C |
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37 from libervia.backend.core.i18n import _ |
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38 from libervia.backend.core import exceptions |
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39 from libervia.backend.tools import config |
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40 from libervia.backend.tools.common import date_utils |
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41 from libervia.backend.core.log import getLogger |
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42 |
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43 log = getLogger(__name__) |
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44 |
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45 try: |
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46 import sat_templates |
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47 except ImportError: |
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48 raise exceptions.MissingModule( |
| 3028 | 49 "sat_templates module is not available, please install it or check your path to " |
| 50 "use template engine" | |
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51 ) |
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52 else: |
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53 sat_templates # to avoid pyflakes warning |
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54 |
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55 try: |
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56 import jinja2 |
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57 except: |
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58 raise exceptions.MissingModule( |
| 3028 | 59 "Missing module jinja2, please install it from http://jinja.pocoo.org or with " |
| 60 "pip install jinja2" | |
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61 ) |
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62 |
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63 from lxml import etree |
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64 from jinja2 import Markup as safe |
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65 from jinja2 import is_undefined |
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66 from jinja2 import utils |
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67 from jinja2 import TemplateNotFound |
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68 from jinja2 import contextfilter |
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69 from jinja2.loaders import split_template_path |
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70 |
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71 HTML_EXT = ("html", "xhtml") |
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72 RE_ATTR_ESCAPE = re.compile(r"[^a-z_-]") |
| 3028 | 73 SITE_RESERVED_NAMES = ("sat",) |
| 74 TPL_RESERVED_CHARS = r"()/." | |
| 75 RE_TPL_RESERVED_CHARS = re.compile("[" + TPL_RESERVED_CHARS + "]") | |
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76 BROWSER_DIR = "_browser" |
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77 BROWSER_META_FILE = "browser_meta.json" |
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78 |
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79 TemplateData = namedtuple("TemplateData", ['site', 'theme', 'path']) |
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80 |
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81 |
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82 class TemplateLoader(jinja2.BaseLoader): |
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83 """A template loader which handle site, theme and absolute paths""" |
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84 # TODO: list_templates should be implemented |
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85 |
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86 def __init__(self, sites_paths, sites_themes, trusted=False): |
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87 """ |
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88 @param trusted(bool): if True, absolue template paths will be allowed |
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89 be careful when using this option and sure that you can trust the template, |
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90 as this allow the template to open any file on the system that the |
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91 launching user can access. |
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92 """ |
| 3028 | 93 if not sites_paths or not "" in sites_paths: |
| 94 raise exceptions.InternalError("Invalid sites_paths") | |
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95 super(jinja2.BaseLoader, self).__init__() |
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96 self.sites_paths = sites_paths |
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97 self.sites_themes = sites_themes |
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98 self.trusted = trusted |
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99 |
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100 @staticmethod |
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101 def parse_template(template): |
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102 """Parse template path and return site, theme and path |
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103 |
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104 @param template_path(unicode): path to template with parenthesis syntax |
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105 The site and/or theme can be specified in parenthesis just before the path |
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106 e.g.: (some_theme)path/to/template.html |
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107 (/some_theme)path/to/template.html (equivalent to previous one) |
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108 (other_site/other_theme)path/to/template.html |
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109 (other_site/)path/to/template.html (defaut theme for other_site) |
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110 /absolute/path/to/template.html (in trusted environment only) |
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111 @return (TemplateData): |
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112 site, theme and template_path. |
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113 if site is empty, SàT Templates are used |
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114 site and theme can be both None if absolute path is used |
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115 Relative path is the path from theme root dir e.g. blog/articles.html |
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116 """ |
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118 # site and/or theme are specified |
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119 try: |
| 3028 | 120 theme_end = template.index(")") |
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121 except IndexError: |
| 3028 | 122 raise ValueError("incorrect site/theme in template") |
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123 theme_data = template[1:theme_end] |
| 3028 | 124 theme_splitted = theme_data.split('/') |
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125 if len(theme_splitted) == 1: |
| 3028 | 126 site, theme = "", theme_splitted[0] |
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127 elif len(theme_splitted) == 2: |
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128 site, theme = theme_splitted |
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129 else: |
| 3028 | 130 raise ValueError("incorrect site/theme in template") |
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131 template_path = template[theme_end+1:] |
| 3028 | 132 if not template_path or template_path.startswith("/"): |
| 133 raise ValueError("incorrect template path") | |
| 134 elif template.startswith("/"): | |
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135 # this is an absolute path, so we have no site and no theme |
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136 site = None |
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137 theme = None |
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138 template_path = template |
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139 else: |
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140 # a default template |
| 3028 | 141 site = "" |
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142 theme = C.TEMPLATE_THEME_DEFAULT |
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143 template_path = template |
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144 |
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145 if site is not None: |
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146 site = site.strip() |
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147 if not site: |
| 3028 | 148 site = "" |
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149 elif site in SITE_RESERVED_NAMES: |
| 3028 | 150 raise ValueError(_("{site} can't be used as site name, " |
| 151 "it's reserved.").format(site=site)) | |
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152 |
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153 if theme is not None: |
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154 theme = theme.strip() |
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155 if not theme: |
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156 theme = C.TEMPLATE_THEME_DEFAULT |
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157 if RE_TPL_RESERVED_CHARS.search(theme): |
| 3028 | 158 raise ValueError(_("{theme} contain forbidden char. Following chars " |
| 159 "are forbidden: {reserved}").format( | |
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160 theme=theme, reserved=TPL_RESERVED_CHARS)) |
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161 |
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162 return TemplateData(site, theme, template_path) |
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163 |
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164 @staticmethod |
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165 def get_sites_and_themes( |
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166 site: str, |
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167 theme: str, |
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168 settings: Optional[dict] = None, |
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169 ) -> List[Tuple[str, str]]: |
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170 """Get sites and themes to check for template/file |
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171 |
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172 Will add default theme and default site in search list when suitable. Settings' |
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173 `fallback` can be used to modify behaviour: themes in this list will then be used |
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174 instead of default (it can also be empty list or None, in which case no fallback |
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175 is used). |
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176 |
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177 @param site: site requested |
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178 @param theme: theme requested |
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179 @return: site and theme couples to check |
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180 """ |
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181 if settings is None: |
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182 settings = {} |
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183 sites_and_themes = [[site, theme]] |
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184 fallback = settings.get("fallback", [C.TEMPLATE_THEME_DEFAULT]) |
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185 for fb_theme in fallback: |
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186 if theme != fb_theme: |
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187 sites_and_themes.append([site, fb_theme]) |
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188 if site: |
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189 for fb_theme in fallback: |
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190 sites_and_themes.append(["", fb_theme]) |
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191 return sites_and_themes |
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192 |
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193 def _get_template_f(self, site, theme, path_elts): |
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194 """Look for template and return opened file if found |
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195 |
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196 @param site(unicode): names of site to check |
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197 (default site will also checked) |
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198 @param theme(unicode): theme to check (default theme will also be checked) |
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199 @param path_elts(iterable[str]): elements of template path |
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200 @return (tuple[(File, None), (str, None)]): a tuple with: |
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201 - opened template, or None if not found |
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202 - absolute file path, or None if not found |
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203 """ |
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204 if site is None: |
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205 raise exceptions.InternalError( |
| 3028 | 206 "_get_template_f must not be used with absolute path") |
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207 settings = self.sites_themes[site][theme]['settings'] |
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208 for site_to_check, theme_to_check in self.get_sites_and_themes( |
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209 site, theme, settings): |
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210 try: |
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211 base_path = self.sites_paths[site_to_check] |
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212 except KeyError: |
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213 log.warning(_("Unregistered site requested: {site_to_check}").format( |
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214 site_to_check=site_to_check)) |
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215 filepath = os.path.join( |
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216 base_path, |
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217 C.TEMPLATE_TPL_DIR, |
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218 theme_to_check, |
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219 *path_elts |
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220 ) |
| 3028 | 221 f = utils.open_if_exists(filepath, 'r') |
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222 if f is not None: |
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223 return f, filepath |
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224 return None, None |
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225 |
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226 def get_source(self, environment, template): |
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227 """Retrieve source handling site and themes |
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228 |
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229 If the path is absolute it is used directly if in trusted environment |
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230 else and exception is raised. |
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231 if the path is just relative, "default" theme is used. |
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232 @raise PermissionError: absolute path used in untrusted environment |
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233 """ |
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234 site, theme, template_path = self.parse_template(template) |
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235 |
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236 if site is None: |
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237 # we have an abolute template |
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238 if theme is not None: |
| 3028 | 239 raise exceptions.InternalError("We can't have a theme with absolute " |
| 240 "template.") | |
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241 if not self.trusted: |
| 3028 | 242 log.error(_("Absolute template used while unsecure is disabled, hack " |
| 243 "attempt? Template: {template}").format(template=template)) | |
| 244 raise exceptions.PermissionError("absolute template is not allowed") | |
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245 filepath = template_path |
| 3028 | 246 f = utils.open_if_exists(filepath, 'r') |
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247 else: |
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248 # relative path, we have to deal with site and theme |
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249 assert theme and template_path |
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250 path_elts = split_template_path(template_path) |
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251 # if we have non default site, we check it first, else we only check default |
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252 f, filepath = self._get_template_f(site, theme, path_elts) |
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253 |
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254 if f is None: |
| 3028 | 255 if (site is not None and path_elts[0] == "error" |
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256 and os.path.splitext(template_path)[1][1:] in HTML_EXT): |
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257 # if an HTML error is requested but doesn't exist, we try again |
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258 # with base error. |
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259 f, filepath = self._get_template_f( |
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260 site, theme, ("error", "base.html")) |
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261 if f is None: |
| 3028 | 262 raise exceptions.InternalError("error/base.html should exist") |
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263 else: |
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264 raise TemplateNotFound(template) |
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265 |
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266 try: |
| 3028 | 267 contents = f.read() |
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268 finally: |
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269 f.close() |
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270 |
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271 mtime = os.path.getmtime(filepath) |
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272 |
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273 def uptodate(): |
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274 try: |
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275 return os.path.getmtime(filepath) == mtime |
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276 except OSError: |
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277 return False |
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278 |
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279 return contents, filepath, uptodate |
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280 |
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281 |
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282 class Indexer(object): |
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283 """Index global to a page""" |
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284 |
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285 def __init__(self): |
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286 self._indexes = {} |
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287 |
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288 def next(self, value): |
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289 if value not in self._indexes: |
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290 self._indexes[value] = 0 |
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291 return 0 |
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292 self._indexes[value] += 1 |
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293 return self._indexes[value] |
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294 |
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295 def current(self, value): |
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296 return self._indexes.get(value) |
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297 |
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298 |
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299 class ScriptsHandler(object): |
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300 def __init__(self, renderer, template_data): |
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301 self.renderer = renderer |
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302 self.template_data = template_data |
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303 self.scripts = [] # we don't use a set because order may be important |
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304 |
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305 def include(self, library_name, attribute="defer"): |
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306 """Mark that a script need to be imported. |
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307 |
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308 Must be used before base.html is extended, as <script> are generated there. |
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309 If called several time with the same library, it will be imported once. |
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310 @param library_name(unicode): name of the library to import |
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311 @param loading: |
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312 """ |
| 3028 | 313 if attribute not in ("defer", "async", ""): |
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314 raise exceptions.DataError( |
| 3028 | 315 _('Invalid attribute, please use one of "defer", "async" or ""') |
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316 ) |
| 3028 | 317 if not library_name.endswith(".js"): |
| 318 library_name = library_name + ".js" | |
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319 if (library_name, attribute) not in self.scripts: |
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320 self.scripts.append((library_name, attribute)) |
| 3028 | 321 return "" |
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322 |
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323 def generate_scripts(self): |
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324 """Generate the <script> elements |
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325 |
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326 @return (unicode): <scripts> HTML tags |
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327 """ |
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328 scripts = [] |
| 3028 | 329 tpl = "<script src={src} {attribute}></script>" |
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330 for library, attribute in self.scripts: |
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331 library_path = self.renderer.get_static_path(self.template_data, library) |
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332 if library_path is None: |
| 3028 | 333 log.warning(_("Can't find {libary} javascript library").format( |
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334 library=library)) |
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335 continue |
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336 path = self.renderer.get_front_url(library_path) |
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337 scripts.append(tpl.format(src=quoteattr(path), attribute=attribute)) |
| 3028 | 338 return safe("\n".join(scripts)) |
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339 |
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340 |
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341 class Environment(jinja2.Environment): |
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342 |
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343 def get_template(self, name, parent=None, globals=None): |
| 3028 | 344 if name[0] not in ('/', '('): |
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345 # if name is not an absolute path or a full template name (this happen on |
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346 # extend or import during rendering), we convert it to a full template name. |
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347 # This is needed to handle cache correctly when a base template is overriden. |
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348 # Without that, we could not distinguish something like base/base.html if |
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349 # it's launched from some_site/some_theme or from [default]/default |
| 3028 | 350 name = "({site}/{theme}){template}".format( |
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351 site=self._template_data.site, |
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352 theme=self._template_data.theme, |
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353 template=name) |
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354 |
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355 return super(Environment, self).get_template(name, parent, globals) |
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356 |
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357 |
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358 class Renderer(object): |
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359 |
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360 def __init__(self, host, front_url_filter=None, trusted=False, private=False): |
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361 """ |
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362 @param front_url_filter(callable): filter to retrieve real url of a directory/file |
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363 The callable will get a two arguments: |
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364 - a dict with a "template_data" key containing TemplateData instance of |
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365 current template. Only site and theme should be necessary. |
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366 - the relative URL of the file to retrieve, relative from theme root |
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367 None to use default filter which return real path on file |
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368 Need to be specified for web rendering, to reflect URL seen by end user |
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369 @param trusted(bool): if True, allow to access absolute path |
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370 Only set to True if environment is safe (e.g. command line tool) |
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371 @param private(bool): if True, also load sites from sites_path_private_dict |
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372 """ |
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373 self.host = host |
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374 self.trusted = trusted |
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375 self.sites_paths = { |
| 3028 | 376 "": os.path.dirname(sat_templates.__file__), |
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377 } |
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378 self.sites_themes = { |
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379 } |
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380 conf = config.parse_main_conf() |
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381 public_sites = config.config_get(conf, None, "sites_path_public_dict", {}) |
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382 sites_data = [public_sites] |
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383 if private: |
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384 private_sites = config.config_get(conf, None, "sites_path_private_dict", {}) |
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385 sites_data.append(private_sites) |
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386 for sites in sites_data: |
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387 normalised = {} |
| 3028 | 388 for name, path in sites.items(): |
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389 if RE_TPL_RESERVED_CHARS.search(name): |
| 3028 | 390 log.warning(_("Can't add \"{name}\" site, it contains forbidden " |
| 391 "characters. Forbidden characters are {forbidden}.") | |
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392 .format(name=name, forbidden=TPL_RESERVED_CHARS)) |
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393 continue |
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394 path = os.path.expanduser(os.path.normpath(path)) |
| 3028 | 395 if not path or not path.startswith("/"): |
| 396 log.warning(_("Can't add \"{name}\" site, it should map to an " | |
| 397 "absolute path").format(name=name)) | |
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398 continue |
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399 normalised[name] = path |
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400 self.sites_paths.update(normalised) |
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401 |
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402 for site, site_path in self.sites_paths.items(): |
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403 tpl_path = Path(site_path) / C.TEMPLATE_TPL_DIR |
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404 for p in tpl_path.iterdir(): |
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405 if not p.is_dir(): |
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406 continue |
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407 log.debug(f"theme found for {site or 'default site'}: {p.name}") |
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408 theme_data = self.sites_themes.setdefault(site, {})[p.name] = { |
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409 'path': p, |
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410 'settings': {}} |
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411 theme_settings = p / "settings.json" |
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412 if theme_settings.is_file: |
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413 try: |
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414 with theme_settings.open() as f: |
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415 settings = json.load(f) |
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416 except Exception as e: |
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417 log.warning(_( |
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418 "Can't load theme settings at {path}: {e}").format( |
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419 path=theme_settings, e=e)) |
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420 else: |
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421 log.debug( |
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422 f"found settings for theme {p.name!r} at {theme_settings}") |
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423 fallback = settings.get("fallback") |
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424 if fallback is None: |
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425 settings["fallback"] = [] |
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426 elif isinstance(fallback, str): |
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427 settings["fallback"] = [fallback] |
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428 elif not isinstance(fallback, list): |
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429 raise ValueError( |
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430 'incorrect type for "fallback" in settings ' |
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431 f'({type(fallback)}) at {theme_settings}: {fallback}' |
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432 ) |
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433 theme_data['settings'] = settings |
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434 browser_path = p / BROWSER_DIR |
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435 if browser_path.is_dir(): |
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436 theme_data['browser_path'] = browser_path |
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437 browser_meta_path = browser_path / BROWSER_META_FILE |
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438 if browser_meta_path.is_file(): |
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439 try: |
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440 with browser_meta_path.open() as f: |
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441 theme_data['browser_meta'] = json.load(f) |
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442 except Exception as e: |
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443 log.error( |
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444 f"Can't parse browser metadata at {browser_meta_path}: {e}" |
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445 ) |
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446 continue |
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447 |
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448 self.env = Environment( |
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449 loader=TemplateLoader( |
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450 sites_paths=self.sites_paths, |
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451 sites_themes=self.sites_themes, |
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452 trusted=trusted |
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453 ), |
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454 autoescape=jinja2.select_autoescape(["html", "xhtml", "xml"]), |
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455 trim_blocks=True, |
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456 lstrip_blocks=True, |
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457 extensions=["jinja2.ext.i18n"], |
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458 ) |
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459 self.env._template_data = None |
|
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460 self._locale_str = C.DEFAULT_LOCALE |
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461 self._locale = Locale.parse(self._locale_str) |
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462 self.install_translations() |
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463 |
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464 # we want to have access to SàT constants in templates |
| 3028 | 465 self.env.globals["C"] = C |
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466 |
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467 # custom filters |
| 3028 | 468 self.env.filters["next_gidx"] = self._next_gidx |
| 469 self.env.filters["cur_gidx"] = self._cur_gidx | |
| 470 self.env.filters["date_fmt"] = self._date_fmt | |
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471 self.env.filters["timestamp_to_hour"] = self._timestamp_to_hour |
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472 self.env.filters["delta_to_human"] = date_utils.delta2human |
| 3028 | 473 self.env.filters["xmlui_class"] = self._xmlui_class |
| 474 self.env.filters["attr_escape"] = self.attr_escape | |
| 475 self.env.filters["item_filter"] = self._item_filter | |
| 476 self.env.filters["adv_format"] = self._adv_format | |
| 477 self.env.filters["dict_ext"] = self._dict_ext | |
| 478 self.env.filters["highlight"] = self.highlight | |
| 479 self.env.filters["front_url"] = (self._front_url if front_url_filter is None | |
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480 else front_url_filter) |
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481 # custom tests |
| 3028 | 482 self.env.tests["in_the_past"] = self._in_the_past |
| 483 self.icons_path = os.path.join(host.media_dir, "fonts/fontello/svg") | |
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484 |
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485 # policies |
| 3028 | 486 self.env.policies["ext.i18n.trimmed"] = True |
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487 self.env.policies["json.dumps_kwargs"] = { |
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488 "sort_keys": True, |
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489 # if object can't be serialised, we use None |
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490 "default": lambda o: o.to_json() if hasattr(o, "to_json") else None |
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491 } |
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492 |
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493 def get_front_url(self, template_data, path=None): |
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494 """Give front URL (i.e. URL seen by end-user) of a path |
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495 |
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496 @param template_data[TemplateData]: data of current template |
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497 @param path(unicode, None): relative path of file to get, |
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498 if set, will remplate template_data.path |
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499 """ |
| 3028 | 500 return self.env.filters["front_url"]({"template_data": template_data}, |
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501 path or template_data.path) |
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502 |
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503 def install_translations(self): |
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504 # TODO: support multi translation |
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505 # for now, only translations in sat_templates are handled |
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506 self.translations = {} |
| 3028 | 507 for site_key, site_path in self.sites_paths.items(): |
| 508 site_prefix = "[{}] ".format(site_key) if site_key else '' | |
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509 i18n_dir = os.path.join(site_path, "i18n") |
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510 for lang_dir in os.listdir(i18n_dir): |
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511 lang_path = os.path.join(i18n_dir, lang_dir) |
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512 if not os.path.isdir(lang_path): |
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513 continue |
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514 po_path = os.path.join(lang_path, "LC_MESSAGES/sat.mo") |
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515 try: |
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516 locale = Locale.parse(lang_dir) |
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517 with open(po_path, "rb") as f: |
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518 try: |
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519 translations = self.translations[locale] |
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520 except KeyError: |
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521 self.translations[locale] = support.Translations(f, "sat") |
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522 else: |
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523 translations.merge(support.Translations(f, "sat")) |
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524 except EnvironmentError: |
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525 log.error( |
| 3028 | 526 _("Can't find template translation at {path}").format( |
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527 path=po_path)) |
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528 except UnknownLocaleError as e: |
| 3028 | 529 log.error(_("{site}Invalid locale name: {msg}").format( |
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530 site=site_prefix, msg=e)) |
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531 else: |
| 3028 | 532 log.info(_("{site}loaded {lang} templates translations").format( |
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533 site = site_prefix, |
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534 lang=lang_dir)) |
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535 |
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536 default_locale = Locale.parse(self._locale_str) |
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537 if default_locale not in self.translations: |
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538 # default locale disable gettext, |
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539 # so we can use None instead of a Translations instance |
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540 self.translations[default_locale] = None |
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541 |
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542 self.env.install_null_translations(True) |
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543 # we generate a tuple of locales ordered by display name that templates can access |
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544 # through the "locales" variable |
| 3028 | 545 self.locales = tuple(sorted(list(self.translations.keys()), |
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546 key=lambda l: l.language_name.lower())) |
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547 |
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548 |
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549 def set_locale(self, locale_str): |
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550 """set current locale |
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551 |
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552 change current translation locale and self self._locale and self._locale_str |
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553 """ |
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554 if locale_str == self._locale_str: |
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555 return |
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556 if locale_str == "en": |
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557 # we default to GB English when it's not specified |
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558 # one of the main reason is to avoid the nonsense U.S. short date format |
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559 locale_str = "en_GB" |
|
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560 try: |
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561 locale = Locale.parse(locale_str) |
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562 except ValueError as e: |
| 3028 | 563 log.warning(_("invalid locale value: {msg}").format(msg=e)) |
|
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564 locale_str = self._locale_str = C.DEFAULT_LOCALE |
|
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565 locale = Locale.parse(locale_str) |
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566 |
| 3028 | 567 locale_str = str(locale) |
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568 if locale_str != C.DEFAULT_LOCALE: |
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569 try: |
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570 translations = self.translations[locale] |
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571 except KeyError: |
| 3028 | 572 log.warning(_("Can't find locale {locale}".format(locale=locale))) |
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573 locale_str = C.DEFAULT_LOCALE |
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574 locale = Locale.parse(self._locale_str) |
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575 else: |
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576 self.env.install_gettext_translations(translations, True) |
| 3028 | 577 log.debug(_("Switched to {lang}").format(lang=locale.english_name)) |
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578 |
|
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579 if locale_str == C.DEFAULT_LOCALE: |
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580 self.env.install_null_translations(True) |
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581 |
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582 self._locale = locale |
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583 self._locale_str = locale_str |
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584 |
|
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585 def get_theme_and_root(self, template): |
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586 """retrieve theme and root dir of a given template |
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587 |
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588 @param template(unicode): template to parse |
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589 @return (tuple[unicode, unicode]): theme and absolute path to theme's root dir |
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590 @raise NotFound: requested site has not been found |
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591 """ |
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592 # FIXME: check use in jp, and include site |
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593 site, theme, __ = self.env.loader.parse_template(template) |
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594 if site is None: |
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595 # absolute template |
| 3028 | 596 return "", os.path.dirname(template) |
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597 try: |
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598 site_root_dir = self.sites_paths[site] |
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599 except KeyError: |
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600 raise exceptions.NotFound |
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601 return theme, os.path.join(site_root_dir, C.TEMPLATE_TPL_DIR, theme) |
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602 |
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603 def get_themes_data(self, site_name): |
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604 try: |
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605 return self.sites_themes[site_name] |
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606 except KeyError: |
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607 raise exceptions.NotFound(f"no theme found for {site_name}") |
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608 |
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609 def get_static_path( |
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610 self, |
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611 template_data: TemplateData, |
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612 filename: str, |
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613 settings: Optional[dict]=None |
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614 ) -> Optional[TemplateData]: |
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615 """Retrieve path of a static file if it exists with current theme or default |
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616 |
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617 File will be looked at <site_root_dir>/<theme_dir>/<static_dir>/filename, |
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618 then <site_root_dir>/<default_theme_dir>/<static_dir>/filename anf finally |
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619 <default_site>/<default_theme_dir>/<static_dir> (i.e. sat_templates). |
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620 In case of absolute URL, base dir of template is used as base. For instance if |
|
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621 template is an absolute template to "/some/path/template.html", file will be |
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622 checked at "/some/path/<filename>" |
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623 @param template_data: data of current template |
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624 @param filename: name of the file to retrieve |
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625 @param settings: theme settings, can be used to modify behaviour |
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626 @return: built template data instance where .path is |
|
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627 the relative path to the file, from theme root dir. |
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628 None if not found. |
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629 """ |
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630 if template_data.site is None: |
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631 # we have an absolue path |
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632 if (not template_data.theme is None |
| 3028 | 633 or not template_data.path.startswith('/')): |
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634 raise exceptions.InternalError( |
| 3028 | 635 "invalid template data, was expecting absolute URL") |
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636 static_dir = os.path.dirname(template_data.path) |
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637 file_path = os.path.join(static_dir, filename) |
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638 if os.path.exists(file_path): |
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639 return TemplateData(site=None, theme=None, path=file_path) |
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640 else: |
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641 return None |
|
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642 |
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|
643 sites_and_themes = TemplateLoader.get_sites_and_themes(template_data.site, |
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|
644 template_data.theme, |
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|
645 settings) |
|
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646 for site, theme in sites_and_themes: |
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647 site_root_dir = self.sites_paths[site] |
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648 relative_path = os.path.join(C.TEMPLATE_STATIC_DIR, filename) |
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649 absolute_path = os.path.join(site_root_dir, C.TEMPLATE_TPL_DIR, |
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|
650 theme, relative_path) |
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651 if os.path.exists(absolute_path): |
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652 return TemplateData(site=site, theme=theme, path=relative_path) |
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|
653 |
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654 return None |
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|
655 |
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656 def _append_css_paths( |
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657 self, |
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658 template_data: TemplateData, |
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659 css_files: list, |
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660 css_files_noscript: list, |
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661 name_root: str, |
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662 settings: dict |
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663 |
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664 ) -> None: |
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665 """Append found css to css_files and css_files_noscript |
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666 |
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667 @param css_files: list to fill of relative path to found css file |
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668 @param css_files_noscript: list to fill of relative path to found css file |
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669 with "_noscript" suffix |
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670 """ |
| 3028 | 671 name = name_root + ".css" |
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672 css_path = self.get_static_path(template_data, name, settings) |
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673 if css_path is not None: |
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674 css_files.append(self.get_front_url(css_path)) |
| 3028 | 675 noscript_name = name_root + "_noscript.css" |
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676 noscript_path = self.get_static_path( |
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|
677 template_data, noscript_name, settings) |
|
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678 if noscript_path is not None: |
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679 css_files_noscript.append(self.get_front_url(noscript_path)) |
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680 |
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681 def get_css_files(self, template_data): |
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682 """Retrieve CSS files to use according template_data |
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683 |
|
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684 For each element of the path, a .css file is looked for in /static, and returned |
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685 if it exists. |
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686 Previous element are kept by replacing '/' with '_'. |
|
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687 styles_extra.css, styles.css, highlight.css and fonts.css are always used if they |
|
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|
688 exist. |
|
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689 For each found file, if a file with the same name and "_noscript" suffix exists, |
| 3267 | 690 it will be returned is second part of resulting tuple. |
|
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691 For instance, if template_data is (some_site, some_theme, blog/articles.html), |
| 3267 | 692 following files are returned, each time trying [some_site root] first, |
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693 then default site (i.e. sat_templates) root: |
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694 - some_theme/static/styles.css is returned if it exists |
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695 else default/static/styles.css |
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696 - some_theme/static/blog.css is returned if it exists |
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697 else default/static/blog.css (if it exists too) |
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698 - some_theme/static/blog_articles.css is returned if it exists |
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699 else default/static/blog_articles.css (if it exists too) |
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700 and for each found files, if same file with _noscript suffix exists, it is put |
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701 in noscript list (for instance (some_theme/static/styles_noscript.css)). |
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702 The behaviour may be changed with theme settings: if "fallback" is set, specified |
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703 themes will be checked instead of default. The theme will be checked in given |
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704 order, and "fallback" may be None or empty list to not check anything. |
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705 @param template_data(TemplateData): data of the current template |
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706 @return (tuple[list[unicode], list[unicode]]): a tuple with: |
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707 - front URLs of CSS files to use |
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708 - front URLs of CSS files to use when scripts are not enabled |
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709 """ |
|
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710 # TODO: some caching would be nice |
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711 css_files = [] |
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|
712 css_files_noscript = [] |
| 3028 | 713 path_elems = template_data.path.split('/') |
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714 path_elems[-1] = os.path.splitext(path_elems[-1])[0] |
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715 site = template_data.site |
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716 if site is None: |
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717 # absolute path |
|
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718 settings = {} |
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719 else: |
|
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720 settings = self.sites_themes[site][template_data.theme]['settings'] |
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721 |
|
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|
722 css_path = self.get_static_path(template_data, 'fonts.css', settings) |
|
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723 if css_path is not None: |
|
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|
724 css_files.append(self.get_front_url(css_path)) |
|
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725 |
| 3028 | 726 for name_root in ('styles', 'styles_extra', 'highlight'): |
|
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727 self._append_css_paths( |
|
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|
728 template_data, css_files, css_files_noscript, name_root, settings) |
| 2683 | 729 |
| 3028 | 730 for idx in range(len(path_elems)): |
| 731 name_root = "_".join(path_elems[:idx+1]) | |
|
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|
732 self._append_css_paths( |
|
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|
733 template_data, css_files, css_files_noscript, name_root, settings) |
|
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|
734 |
|
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735 return css_files, css_files_noscript |
|
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736 |
|
2403
dec31114c402
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|
737 ## custom filters ## |
|
dec31114c402
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|
738 |
|
2675
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|
739 @contextfilter |
|
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740 def _front_url(self, ctx, relative_url): |
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741 """Get front URL (URL seen by end-user) from a relative URL |
|
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742 |
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743 This default method return absolute full path |
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744 """ |
| 3028 | 745 template_data = ctx['template_data'] |
|
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746 if template_data.site is None: |
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747 assert template_data.theme is None |
| 3028 | 748 assert template_data.path.startswith("/") |
|
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749 return os.path.join(os.path.dirname(template_data.path, relative_url)) |
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|
750 |
|
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|
751 site_root_dir = self.sites_paths[template_data.site] |
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|
752 return os.path.join(site_root_dir, C.TEMPLATE_TPL_DIR, template_data.theme, |
|
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|
753 relative_url) |
|
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|
754 |
|
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|
755 @contextfilter |
|
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|
756 def _next_gidx(self, ctx, value): |
|
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|
757 """Use next current global index as suffix""" |
|
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|
758 next_ = ctx["gidx"].next(value) |
| 3028 | 759 return value if next_ == 0 else "{}_{}".format(value, next_) |
|
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|
760 |
|
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|
761 @contextfilter |
|
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|
762 def _cur_gidx(self, ctx, value): |
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|
763 """Use current current global index as suffix""" |
|
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|
764 current = ctx["gidx"].current(value) |
| 3028 | 765 return value if not current else "{}_{}".format(value, current) |
|
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|
766 |
|
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|
767 def _date_fmt( |
|
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|
768 self, |
|
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|
769 timestamp: Union[int, float], |
|
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|
770 fmt: str = "short", |
|
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|
771 date_only: bool = False, |
|
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|
772 auto_limit: int = 7, |
|
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|
773 auto_old_fmt: str = "short", |
|
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|
774 auto_new_fmt: str = "relative", |
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|
775 tz_name: Optional[str] = None |
|
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|
776 ) -> str: |
|
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|
777 if is_undefined(fmt): |
| 3028 | 778 fmt = "short" |
|
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|
779 |
|
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|
780 try: |
|
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|
781 return date_utils.date_fmt( |
|
2907
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|
782 timestamp, fmt, date_only, auto_limit, auto_old_fmt, |
|
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|
783 auto_new_fmt, locale_str = self._locale_str, |
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|
784 tz_info=tz_name or date_utils.TZ_UTC |
|
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|
785 ) |
|
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|
786 except Exception as e: |
| 3028 | 787 log.warning(_("Can't parse date: {msg}").format(msg=e)) |
|
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|
788 return str(timestamp) |
|
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|
789 |
|
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|
790 def _timestamp_to_hour(self, timestamp: float) -> int: |
|
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|
791 """Get hour of day corresponding to a timestamp""" |
|
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|
792 dt = datetime.fromtimestamp(timestamp) |
|
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|
793 return dt.hour |
|
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|
794 |
|
2384
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|
795 def attr_escape(self, text): |
|
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796 """escape a text to a value usable as an attribute |
|
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|
797 |
|
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|
798 remove spaces, and put in lower case |
|
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|
799 """ |
| 3028 | 800 return RE_ATTR_ESCAPE.sub("_", text.strip().lower())[:50] |
|
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|
801 |
|
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|
802 def _xmlui_class(self, xmlui_item, fields): |
|
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|
803 """return classes computed from XMLUI fields name |
|
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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|
804 |
|
d14c1a3e3244
template: new "xmlui_class" filter compute class names from name/values of requested fields.
Goffi <goffi@goffi.org>
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diff
changeset
|
805 will return a string with a series of escaped {name}_{value} separated by spaces. |
|
d14c1a3e3244
template: new "xmlui_class" filter compute class names from name/values of requested fields.
Goffi <goffi@goffi.org>
parents:
2323
diff
changeset
|
806 @param xmlui_item(xmlui.XMLUIPanel): XMLUI containing the widgets to use |
|
d14c1a3e3244
template: new "xmlui_class" filter compute class names from name/values of requested fields.
Goffi <goffi@goffi.org>
parents:
2323
diff
changeset
|
807 @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.
Goffi <goffi@goffi.org>
parents:
2323
diff
changeset
|
808 @return (unicode, None): computer string to use as class attribute value |
|
d14c1a3e3244
template: new "xmlui_class" filter compute class names from name/values of requested fields.
Goffi <goffi@goffi.org>
parents:
2323
diff
changeset
|
809 None if no field was specified |
|
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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|
810 """ |
|
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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|
811 classes = [] |
|
d14c1a3e3244
template: new "xmlui_class" filter compute class names from name/values of requested fields.
Goffi <goffi@goffi.org>
parents:
2323
diff
changeset
|
812 for name in fields: |
|
d14c1a3e3244
template: new "xmlui_class" filter compute class names from name/values of requested fields.
Goffi <goffi@goffi.org>
parents:
2323
diff
changeset
|
813 escaped_name = self.attr_escape(name) |
|
d14c1a3e3244
template: new "xmlui_class" filter compute class names from name/values of requested fields.
Goffi <goffi@goffi.org>
parents:
2323
diff
changeset
|
814 try: |
|
d14c1a3e3244
template: new "xmlui_class" filter compute class names from name/values of requested fields.
Goffi <goffi@goffi.org>
parents:
2323
diff
changeset
|
815 for value in xmlui_item.widgets[name].values: |
|
2624
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Goffi <goffi@goffi.org>
parents:
2599
diff
changeset
|
816 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:
2323
diff
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|
817 except KeyError: |
|
2624
56f94936df1e
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Goffi <goffi@goffi.org>
parents:
2599
diff
changeset
|
818 log.debug( |
| 3028 | 819 _('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
|
820 ) |
|
2384
d14c1a3e3244
template: new "xmlui_class" filter compute class names from name/values of requested fields.
Goffi <goffi@goffi.org>
parents:
2323
diff
changeset
|
821 continue |
| 3028 | 822 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>
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2323
diff
changeset
|
823 |
|
2675
39d187f3698d
template: import contextfilter as module attribute
Goffi <goffi@goffi.org>
parents:
2671
diff
changeset
|
824 @contextfilter |
|
2422
5425cf18929b
template: fixed the use of eval_context_filter in item_filter
Goffi <goffi@goffi.org>
parents:
2414
diff
changeset
|
825 def _item_filter(self, ctx, item, filters): |
| 2402 | 826 """return item's value, filtered if suitable |
| 827 | |
| 828 @param item(object): item to filter | |
| 829 value must have name and value attributes, | |
| 830 mostly used for XMLUI items | |
| 831 @param filters(dict[unicode, (callable, dict, None)]): map of name => filter | |
| 832 if filter is None, return the value unchanged | |
| 833 if filter is a callable, apply it | |
| 834 if filter is a dict, it can have following keys: | |
| 835 - filters: iterable of filters to apply | |
|
2671
0fa217fafabf
tools (common/template), jp: refactoring to handle multiple sites:
Goffi <goffi@goffi.org>
parents:
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diff
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|
836 - filters_args: kwargs of filters in the same order as filters (use empty |
|
0fa217fafabf
tools (common/template), jp: refactoring to handle multiple sites:
Goffi <goffi@goffi.org>
parents:
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diff
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|
837 dict if needed) |
| 2402 | 838 - template: template to format where {value} is the filtered value |
| 839 """ | |
| 840 value = item.value | |
| 841 filter_ = filters.get(item.name, None) | |
| 842 if filter_ is None: | |
| 843 return value | |
| 844 elif isinstance(filter_, dict): | |
| 3028 | 845 filters_args = filter_.get("filters_args") |
| 846 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
|
847 kwargs = filters_args[idx] if filters_args is not None else {} |
|
5425cf18929b
template: fixed the use of eval_context_filter in item_filter
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parents:
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diff
changeset
|
848 filter_func = self.env.filters[f_name] |
|
5425cf18929b
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Goffi <goffi@goffi.org>
parents:
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diff
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|
849 try: |
|
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template: fixed the use of eval_context_filter in item_filter
Goffi <goffi@goffi.org>
parents:
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diff
changeset
|
850 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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|
851 except AttributeError: |
|
5425cf18929b
template: fixed the use of eval_context_filter in item_filter
Goffi <goffi@goffi.org>
parents:
2414
diff
changeset
|
852 eval_context_filter = False |
|
5425cf18929b
template: fixed the use of eval_context_filter in item_filter
Goffi <goffi@goffi.org>
parents:
2414
diff
changeset
|
853 |
|
5425cf18929b
template: fixed the use of eval_context_filter in item_filter
Goffi <goffi@goffi.org>
parents:
2414
diff
changeset
|
854 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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changeset
|
855 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:
2414
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changeset
|
856 else: |
|
5425cf18929b
template: fixed the use of eval_context_filter in item_filter
Goffi <goffi@goffi.org>
parents:
2414
diff
changeset
|
857 value = filter_func(value, **kwargs) |
| 3028 | 858 template = filter_.get("template") |
|
2422
5425cf18929b
template: fixed the use of eval_context_filter in item_filter
Goffi <goffi@goffi.org>
parents:
2414
diff
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|
859 if template: |
|
5425cf18929b
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Goffi <goffi@goffi.org>
parents:
2414
diff
changeset
|
860 # format will return a string, so we need to check first |
|
5425cf18929b
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Goffi <goffi@goffi.org>
parents:
2414
diff
changeset
|
861 # 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:
2414
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changeset
|
862 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
|
863 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
|
864 if is_safe: |
|
5425cf18929b
template: fixed the use of eval_context_filter in item_filter
Goffi <goffi@goffi.org>
parents:
2414
diff
changeset
|
865 value = safe(value) |
|
5425cf18929b
template: fixed the use of eval_context_filter in item_filter
Goffi <goffi@goffi.org>
parents:
2414
diff
changeset
|
866 return value |
| 2402 | 867 |
|
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
|
868 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
|
869 """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
|
870 |
|
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
|
871 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
|
872 @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
|
873 @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
|
874 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
|
875 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
|
876 @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
|
877 """ |
|
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
|
878 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
|
879 return value |
|
2624
56f94936df1e
code style reformatting using black
Goffi <goffi@goffi.org>
parents:
2599
diff
changeset
|
880 # jinja use string when no special char is used, so we have to convert to unicode |
| 3028 | 881 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
|
882 |
|
2425
d294527bd46f
template: added dict_ext filter to extend a dictionary
Goffi <goffi@goffi.org>
parents:
2422
diff
changeset
|
883 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
|
884 """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
|
885 |
|
d294527bd46f
template: added dict_ext filter to extend a dictionary
Goffi <goffi@goffi.org>
parents:
2422
diff
changeset
|
886 @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
|
887 @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
|
888 None to return source_dict unmodified |
|
d294527bd46f
template: added dict_ext filter to extend a dictionary
Goffi <goffi@goffi.org>
parents:
2422
diff
changeset
|
889 @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
|
890 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
|
891 @return (dict): resulting dictionary |
|
d294527bd46f
template: added dict_ext filter to extend a dictionary
Goffi <goffi@goffi.org>
parents:
2422
diff
changeset
|
892 """ |
|
d294527bd46f
template: added dict_ext filter to extend a dictionary
Goffi <goffi@goffi.org>
parents:
2422
diff
changeset
|
893 if extra_dict is None: |
|
d294527bd46f
template: added dict_ext filter to extend a dictionary
Goffi <goffi@goffi.org>
parents:
2422
diff
changeset
|
894 return source_dict |
|
d294527bd46f
template: added dict_ext filter to extend a dictionary
Goffi <goffi@goffi.org>
parents:
2422
diff
changeset
|
895 if key is not None: |
|
d294527bd46f
template: added dict_ext filter to extend a dictionary
Goffi <goffi@goffi.org>
parents:
2422
diff
changeset
|
896 extra_dict = extra_dict.get(key, {}) |
|
d294527bd46f
template: added dict_ext filter to extend a dictionary
Goffi <goffi@goffi.org>
parents:
2422
diff
changeset
|
897 ret = source_dict.copy() |
|
d294527bd46f
template: added dict_ext filter to extend a dictionary
Goffi <goffi@goffi.org>
parents:
2422
diff
changeset
|
898 ret.update(extra_dict) |
|
d294527bd46f
template: added dict_ext filter to extend a dictionary
Goffi <goffi@goffi.org>
parents:
2422
diff
changeset
|
899 return ret |
|
d294527bd46f
template: added dict_ext filter to extend a dictionary
Goffi <goffi@goffi.org>
parents:
2422
diff
changeset
|
900 |
|
2454
06ff33052354
core, template (filters): added pygments as a dependency + new highlight filter to use it.
Goffi <goffi@goffi.org>
parents:
2453
diff
changeset
|
901 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
|
902 """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
|
903 |
|
2671
0fa217fafabf
tools (common/template), jp: refactoring to handle multiple sites:
Goffi <goffi@goffi.org>
parents:
2624
diff
changeset
|
904 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
|
905 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
|
906 @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
|
907 @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
|
908 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
|
909 @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
|
910 @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
|
911 """ |
|
06ff33052354
core, template (filters): added pygments as a dependency + new highlight filter to use it.
Goffi <goffi@goffi.org>
parents:
2453
diff
changeset
|
912 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
|
913 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
|
914 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
|
915 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
|
916 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
|
917 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
|
918 else: |
|
06ff33052354
core, template (filters): added pygments as a dependency + new highlight filter to use it.
Goffi <goffi@goffi.org>
parents:
2453
diff
changeset
|
919 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:
2453
diff
changeset
|
920 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
|
921 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
|
922 |
|
2403
dec31114c402
template: improved date formatter:
Goffi <goffi@goffi.org>
parents:
2402
diff
changeset
|
923 ## custom tests ## |
|
dec31114c402
template: improved date formatter:
Goffi <goffi@goffi.org>
parents:
2402
diff
changeset
|
924 |
|
dec31114c402
template: improved date formatter:
Goffi <goffi@goffi.org>
parents:
2402
diff
changeset
|
925 def _in_the_past(self, timestamp): |
|
dec31114c402
template: improved date formatter:
Goffi <goffi@goffi.org>
parents:
2402
diff
changeset
|
926 """check if a date is in the past |
|
dec31114c402
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|
927 |
|
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|
928 @param timestamp(unicode, int): unix time |
|
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|
929 @return (bool): True if date is in the past |
|
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|
930 """ |
|
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|
931 return time.time() > int(timestamp) |
|
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|
932 |
| 2515 | 933 ## template methods ## |
| 934 | |
| 935 def _icon_defs(self, *names): | |
|
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|
936 """Define svg icons which will be used in the template. |
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|
937 |
|
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|
938 Their name is used as id |
|
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|
939 """ |
|
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|
940 svg_elt = etree.Element( |
|
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|
941 "svg", |
|
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|
942 nsmap={None: "http://www.w3.org/2000/svg"}, |
|
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|
943 width="0", |
|
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|
944 height="0", |
|
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|
945 style="display: block", |
|
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|
946 ) |
|
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|
947 defs_elt = etree.SubElement(svg_elt, "defs") |
| 2515 | 948 for name in names: |
| 3028 | 949 path = os.path.join(self.icons_path, name + ".svg") |
| 2515 | 950 icon_svg_elt = etree.parse(path).getroot() |
| 951 # we use icon name as id, so we can retrieve them easily | |
|
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|
952 icon_svg_elt.set("id", name) |
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|
953 if not icon_svg_elt.tag == "{http://www.w3.org/2000/svg}svg": |
| 3028 | 954 raise exceptions.DataError("invalid SVG element") |
| 2515 | 955 defs_elt.append(icon_svg_elt) |
|
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956 return safe(etree.tostring(svg_elt, encoding="unicode")) |
| 2515 | 957 |
|
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|
958 def _icon_use(self, name, cls=""): |
| 3028 | 959 return safe('<svg class="svg-icon{cls}" xmlns="http://www.w3.org/2000/svg" ' |
| 960 'viewBox="0 0 100 100">\n' | |
| 961 ' <use href="#{name}"/>' | |
| 962 '</svg>\n'.format(name=name, cls=(" " + cls) if cls else "")) | |
| 2515 | 963 |
|
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|
964 def _icon_from_client(self, client): |
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|
965 """Get icon name to represent a disco client""" |
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|
966 if client is None: |
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967 return 'desktop' |
|
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968 elif 'pc' in client: |
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|
969 return 'desktop' |
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|
970 elif 'phone' in client: |
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|
971 return 'mobile' |
|
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|
972 elif 'web' in client: |
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|
973 return 'globe' |
|
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|
974 elif 'console' in client: |
|
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|
975 return 'terminal' |
|
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|
976 else: |
|
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|
977 return 'desktop' |
|
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|
978 |
|
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|
979 def render(self, template, site=None, theme=None, locale=C.DEFAULT_LOCALE, |
| 3028 | 980 media_path="", css_files=None, css_inline=False, **kwargs): |
|
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|
981 """Render a template |
|
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|
982 |
|
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|
983 @param template(unicode): template to render (e.g. blog/articles.html) |
| 3267 | 984 @param site(unicode): site name |
|
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|
985 None or empty string for defaut site (i.e. SàT templates) |
|
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|
986 @param theme(unicode): template theme |
|
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|
987 @param media_path(unicode): prefix of the SàT media path/URL to use for |
|
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|
988 template root. Must end with a u'/' |
| 3267 | 989 @param css_files(list[unicode],None): CSS files to use |
|
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|
990 CSS files must be in static dir of the template |
|
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|
991 use None for automatic selection of CSS files based on template category |
|
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|
992 None is recommended. General static/style.css and theme file name will be |
|
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|
993 used. |
|
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|
994 @param css_inline(bool): if True, CSS will be embedded in the HTML page |
|
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|
995 @param **kwargs: variable to transmit to the template |
|
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|
996 """ |
|
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|
997 if not template: |
| 3028 | 998 raise ValueError("template can't be empty") |
|
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|
999 if site is not None or theme is not None: |
|
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|
1000 # user wants to set site and/or theme, so we add it to the template path |
|
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|
1001 if site is None: |
| 3028 | 1002 site = '' |
|
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|
1003 if theme is None: |
|
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|
1004 theme = C.TEMPLATE_THEME_DEFAULT |
| 3028 | 1005 if template[0] == "(": |
|
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|
1006 raise ValueError( |
| 3028 | 1007 "you can't specify site or theme in template path and in argument " |
| 1008 "at the same time" | |
|
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|
1009 ) |
|
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|
1010 |
|
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|
1011 template_data = TemplateData(site, theme, template) |
| 3028 | 1012 template = "({site}/{theme}){template}".format( |
|
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|
1013 site=site, theme=theme, template=template) |
|
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|
1014 else: |
|
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|
1015 template_data = self.env.loader.parse_template(template) |
|
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|
1016 |
|
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|
1017 # we need to save template_data in environment, to load right templates when they |
|
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|
1018 # are referenced from other templates (e.g. import) |
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|
1019 # FIXME: this trick will not work anymore if we use async templates (it works |
|
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|
1020 # here because we know that the rendering will be blocking until we unset |
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|
1021 # _template_data) |
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|
1022 self.env._template_data = template_data |
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|
1023 |
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1024 template_source = self.env.get_template(template) |
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|
1025 |
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|
1026 if css_files is None: |
|
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|
1027 css_files, css_files_noscript = self.get_css_files(template_data) |
|
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|
1028 else: |
|
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|
1029 css_files_noscript = [] |
|
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1030 |
|
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1031 kwargs["icon_defs"] = self._icon_defs |
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1032 kwargs["icon"] = self._icon_use |
|
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|
1033 kwargs["icon_from_client"] = self._icon_from_client |
| 2515 | 1034 |
|
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1035 if css_inline: |
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|
1036 css_contents = [] |
| 3028 | 1037 for files, suffix in ((css_files, ""), |
| 1038 (css_files_noscript, "_noscript")): | |
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1039 site_root_dir = self.sites_paths[template_data.site] |
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1040 for css_file in files: |
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1041 css_file_path = os.path.join(site_root_dir, css_file) |
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|
1042 with open(css_file_path) as f: |
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|
1043 css_contents.append(f.read()) |
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|
1044 if css_contents: |
| 3028 | 1045 kwargs["css_content" + suffix] = "\n".join(css_contents) |
|
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|
1046 |
|
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|
1047 scripts_handler = ScriptsHandler(self, template_data) |
|
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|
1048 self.set_locale(locale) |
|
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|
1049 |
|
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1050 # XXX: theme used in template arguments is the requested theme, which may differ |
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|
1051 # from actual theme if the template doesn't exist in the requested theme. |
|
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|
1052 rendered = template_source.render( |
|
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|
1053 template_data=template_data, |
|
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1054 media_path=media_path, |
|
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1055 css_files=css_files, |
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template: fixed by variable used in css_files_noscript
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1056 css_files_noscript=css_files_noscript, |
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1057 locale=self._locale, |
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template: added "locales" variables to templates:
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1058 locales=self.locales, |
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1059 gidx=Indexer(), |
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1060 script=scripts_handler, |
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1061 **kwargs |
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1062 ) |
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template: overriden get_template to always have full template name:
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parents:
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1063 self.env._template_data = None |
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1064 return rendered |