Mercurial > libervia-backend

annotate sat_frontends/jp/output_template.py @ 2809:00d905e1b0ef

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core (patches): partially fixed jid caching: jid caching in Twisted use a dict (__internJIDs) which associate a jid as string to its jid.JID instance. But this caching doesn't handle mutability of the objects, resulting wrong jid returned when a modification is done (e.g. if resource is changed). This is a temporary workaround until the patch is proposed and merged upstream. note: this is a partial fix because the caching is also leaking memory (cf. https://twistedmatrix.com/trac/ticket/5122)
author Goffi <goffi@goffi.org>
date Sun, 24 Feb 2019 14:09:44 +0100
parents 003b8b4b56a7
children ab2696e34d29
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1 #! /usr/bin/python
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2 # -*- coding: utf-8 -*-
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3
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4 # jp: a SàT command line tool
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5 # Copyright (C) 2009-2019 Jérôme Poisson (goffi@goffi.org)
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6
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7 # This program is free software: you can redistribute it and/or modify
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8 # it under the terms of the GNU Affero General Public License as published by
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9 # the Free Software Foundation, either version 3 of the License, or
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10 # (at your option) any later version.
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11
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12 # This program is distributed in the hope that it will be useful,
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13 # but WITHOUT ANY WARRANTY; without even the implied warranty of
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14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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15 # GNU Affero General Public License for more details.
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16
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17 # You should have received a copy of the GNU Affero General Public License
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18 # along with this program. If not, see <http://www.gnu.org/licenses/>.
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19 """Standard outputs"""
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20
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21
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22 from sat_frontends.jp.constants import Const as C
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23 from sat.core.i18n import _
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24 from sat.core import log
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25 from sat.tools.common import template
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26 from functools import partial
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27 import logging
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28 import webbrowser
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29 import tempfile
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30 import os.path
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31
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32 __outputs__ = ["Template"]
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33 TEMPLATE = u"template"
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34 OPTIONS = {u"template", u"browser", u"inline-css"}
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35
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36
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37 class Template(object):
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38 """outputs data using SàT templates"""
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39
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40 def __init__(self, jp):
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41 self.host = jp
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42 jp.register_output(C.OUTPUT_COMPLEX, TEMPLATE, self.render)
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43
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44 def _front_url_tmp_dir(self, ctx, relative_url, tmp_dir):
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45 """Get front URL for temporary directory"""
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46 template_data = ctx[u'template_data']
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47 return u"file://" + os.path.join(tmp_dir, template_data.theme, relative_url)
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48
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49 def _do_render(self, template_path, css_inline, **kwargs):
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50 try:
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51 return self.renderer.render(template_path, css_inline=css_inline, **kwargs)
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52 except template.TemplateNotFound:
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53 self.host.disp(_(u"Can't find requested template: {template_path}")
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54 .format(template_path=template_path), error=True)
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55 self.host.quit(C.EXIT_NOT_FOUND)
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56
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57 def render(self, data):
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58 """render output data using requested template
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59
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60 template to render the data can be either command's TEMPLATE or
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61 template output_option requested by user.
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62 @param data(dict): data is a dict which map from variable name to use in template
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63 to the variable itself.
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64 command's template_data_mapping attribute will be used if it exists to convert
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65 data to a dict usable by the template.
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66 """
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67 # media_dir is needed for the template
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68 self.host.media_dir = self.host.bridge.getConfig("", "media_dir")
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69 cmd = self.host.command
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70 try:
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71 template_path = cmd.TEMPLATE
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72 except AttributeError:
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73 if not "template" in cmd.args.output_opts:
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74 self.host.disp(_(
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75 u"no default template set for this command, you need to specify a "
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76 u"template using --oo template=[path/to/template.html]"),
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77 error=True,
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78 )
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79 self.host.quit(C.EXIT_BAD_ARG)
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80
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81 options = self.host.parse_output_options()
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82 self.host.check_output_options(OPTIONS, options)
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83 try:
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84 template_path = options["template"]
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85 except KeyError:
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86 # template is not specified, we use default one
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87 pass
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88 if template_path is None:
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89 self.host.disp(_(u"Can't parse template, please check its syntax"),
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90 error=True)
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91 self.host.quit(C.EXIT_BAD_ARG)
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92
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93 try:
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94 mapping_cb = cmd.template_data_mapping
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95 except AttributeError:
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96 kwargs = data
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97 else:
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98 kwargs = mapping_cb(data)
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99
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100 css_inline = u"inline-css" in options
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101
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102 if "browser" in options:
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103 template_name = os.path.basename(template_path)
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104 tmp_dir = tempfile.mkdtemp()
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105 front_url_filter = partial(self._front_url_tmp_dir, tmp_dir=tmp_dir)
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106 self.renderer = template.Renderer(
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107 self.host, front_url_filter=front_url_filter, trusted=True)
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108 rendered = self._do_render(template_path, css_inline=css_inline, **kwargs)
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109 self.host.disp(_(
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110 u"Browser opening requested.\n"
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111 u"Temporary files are put in the following directory, you'll have to "
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112 u"delete it yourself once finished viewing: {}").format(tmp_dir))
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113 tmp_file = os.path.join(tmp_dir, template_name)
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114 with open(tmp_file, "w") as f:
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115 f.write(rendered.encode("utf-8"))
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116 theme, theme_root_path = self.renderer.getThemeAndRoot(template_path)
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117 if theme is None:
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118 # we have an absolute path
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119 webbrowser
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120 static_dir = os.path.join(theme_root_path, C.TEMPLATE_STATIC_DIR)
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121 if os.path.exists(static_dir):
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122 # we have to copy static files in a subdirectory, to avoid file download
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123 # to be blocked by same origin policy
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124 import shutil
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125 shutil.copytree(
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126 static_dir, os.path.join(tmp_dir, theme, C.TEMPLATE_STATIC_DIR)
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127 )
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128 webbrowser.open(tmp_file)
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129 else:
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130 # FIXME: Q&D way to disable template logging
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131 # logs are overcomplicated, and need to be reworked
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132 template_logger = log.getLogger(u"sat.tools.common.template")
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133 template_logger.log = lambda *args: None
0fa217fafabf tools (common/template), jp: refactoring to handle multiple sites:
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parents: 2624
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134
0fa217fafabf tools (common/template), jp: refactoring to handle multiple sites:
Goffi <goffi@goffi.org>
parents: 2624
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135 logging.disable(logging.WARNING)
0fa217fafabf tools (common/template), jp: refactoring to handle multiple sites:
Goffi <goffi@goffi.org>
parents: 2624
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136 self.renderer = template.Renderer(self.host, trusted=True)
0fa217fafabf tools (common/template), jp: refactoring to handle multiple sites:
Goffi <goffi@goffi.org>
parents: 2624
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137 rendered = self._do_render(template_path, css_inline=css_inline, **kwargs)
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75667727c500 jp (output): template output first draft:
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parents:
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138 self.host.disp(rendered)