Mercurial > libervia-web
annotate twisted/plugins/libervia_server.py @ 1134:28789926852a
doc: Libervia web framework quick_start + css_framework, first drafts
author | Goffi <goffi@goffi.org> |
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date | Wed, 03 Oct 2018 21:01:42 +0200 |
parents | 0cafb79ced6d |
children | 4426c328eb83 |
rev | line source |
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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 # Libervia: a Salut à Toi frontend |
1054 | 5 # Copyright (C) 2013-2018 Jérôme Poisson <goffi@goffi.org> |
818 | 6 # Copyright (C) 2013-2016 Adrien Cossa <souliane@mailoo.org> |
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7 # Copyright (C) 2013 Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> |
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8 |
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9 # This program is free software: you can redistribute it and/or modify |
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10 # it under the terms of the GNU Affero General Public License as published by |
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11 # the Free Software Foundation, either version 3 of the License, or |
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12 # (at your option) any later version. |
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13 |
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14 # This program is distributed in the hope that it will be useful, |
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15 # but WITHOUT ANY WARRANTY; without even the implied warranty of |
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16 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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17 # GNU Affero General Public License for more details. |
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18 |
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19 # You should have received a copy of the GNU Affero General Public License |
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20 # along with this program. If not, see <http://www.gnu.org/licenses/>. |
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21 |
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22 from twisted.internet import gireactor |
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23 gireactor.install() |
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24 from twisted.internet import defer |
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25 |
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26 if defer.Deferred.debug: |
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27 # if we are in debug mode, we want to use ipdb instead of pdb |
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28 try: |
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29 import ipdb |
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30 import pdb |
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31 |
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32 pdb.set_trace = ipdb.set_trace |
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33 pdb.post_mortem = ipdb.post_mortem |
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34 except ImportError: |
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35 pass |
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36 |
514 | 37 import os.path |
856 | 38 import libervia |
39 import sat | |
514 | 40 |
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41 from libervia.server.constants import Const as C |
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42 |
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43 from sat.core.i18n import _ |
811 | 44 from sat.tools import config |
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45 |
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46 from zope.interface import implements |
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47 |
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48 from twisted.python import usage |
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49 from twisted.plugin import IPlugin |
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50 from twisted.application.service import IServiceMaker |
811 | 51 import ConfigParser |
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52 |
811 | 53 |
54 CONFIG_SECTION = C.APP_NAME.lower() | |
856 | 55 if libervia.__version__ != sat.__version__: |
56 import sys | |
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57 |
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58 sys.stderr.write( |
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59 u"""sat module version ({sat_version}) and {current_app} version ({current_version}) mismatch |
856 | 60 |
61 sat module is located at {sat_path} | |
62 libervia module is located at {libervia_path} | |
63 | |
64 Please be sure to have the same version running | |
65 """.format( | |
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66 sat_version=sat.__version__, |
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67 current_app=C.APP_NAME, |
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68 current_version=libervia.__version__, |
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69 sat_path=os.path.dirname(sat.__file__), |
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70 libervia_path=os.path.dirname(libervia.__file__), |
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71 ).encode( |
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72 "utf-8" |
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73 ) |
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74 ) |
856 | 75 sys.stderr.flush() |
76 # we call os._exit to avoid help to be printed by twisted | |
77 import os | |
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78 |
856 | 79 os._exit(1) |
514 | 80 |
81 | |
82 def coerceConnectionType(value): # called from Libervia.OPT_PARAMETERS | |
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83 allowed_values = ("http", "https", "both") |
514 | 84 if value not in allowed_values: |
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85 raise ValueError( |
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86 "%(given)s not in %(expected)s" |
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87 % {"given": value, "expected": str(allowed_values)} |
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88 ) |
514 | 89 return value |
90 | |
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91 |
514 | 92 def coerceDataDir(value): # called from Libervia.OPT_PARAMETERS |
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93 if not value: |
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94 # we ignore missing values |
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95 return u'' |
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96 if isinstance(value, unicode): |
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97 # XXX: if value comes from sat.conf, it's unicode, |
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98 # and we need byte str here (for twisted) |
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99 value = value.encode("utf-8") |
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100 value = value.encode("utf-8") |
514 | 101 html = os.path.join(value, C.HTML_DIR) |
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102 if not os.path.isfile(os.path.join(html, C.LIBERVIA_MAIN_PAGE)): |
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103 raise ValueError( |
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104 "%s is not a Libervia's browser HTML directory" % os.path.realpath(html) |
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105 ) |
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106 themes_dir = os.path.join(value, C.THEMES_DIR) |
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107 if not os.path.isfile(os.path.join(themes_dir, "default/styles/blog.css")): |
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108 raise ValueError( |
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109 "%s is not a Libervia's server data directory" % os.path.realpath(themes_dir) |
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110 ) |
514 | 111 return value |
112 | |
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113 |
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114 def coerceBool(value): |
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115 return C.bool(value) |
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116 |
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117 |
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118 def coerceUnicode(value): |
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119 # XXX: we use this method to check which value to convert to Unicode |
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120 # but we don't do the conversion here as Twisted expect str |
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121 return value |
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122 |
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123 |
514 | 124 DATA_DIR_DEFAULT = '' |
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125 # options which are in sat.conf and on command line, |
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126 # see https://twistedmatrix.com/documents/current/api/twisted.python.usage.Options.html |
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127 OPT_PARAMETERS_BOTH = [['connection_type', 't', 'https', _(u"'http', 'https' or 'both' " |
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128 "(to launch both servers).").encode('utf-8'), |
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129 coerceConnectionType], |
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130 ['port', 'p', 8080, |
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131 _(u'The port number to listen HTTP on.').encode('utf-8'), int], |
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132 ['port_https', 's', 8443, |
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133 _(u'The port number to listen HTTPS on.').encode('utf-8'), int], |
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134 ['port_https_ext', 'e', 0, _(u'The external port number used for ' |
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135 u'HTTPS (0 means port_https value).').encode('utf-8'), int], |
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136 ['tls_private_key', '', '', _(u'TLS certificate private key (PEM ' |
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137 u'format)').encode('utf-8'), coerceUnicode], |
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138 ['tls_certificate', 'c', 'libervia.pem', _(u'TLS public ' |
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139 u'certificate or private key and public certificate combined ' |
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140 u'(PEM format)').encode('utf-8'), coerceUnicode], |
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141 ['tls_chain', '', '', _(u'TLS certificate intermediate chain (PEM ' |
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142 u'format)').encode('utf-8'), coerceUnicode], |
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143 ['redirect_to_https', 'r', True, _(u'Automatically redirect from ' |
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144 u'HTTP to HTTPS.').encode('utf-8'), coerceBool], |
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145 ['security_warning', 'w', True, _(u'Warn user that he is about to ' |
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146 u'connect on HTTP.').encode('utf-8'), coerceBool], |
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147 ['passphrase', 'k', '', (_(u"Passphrase for the SàT profile " |
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148 u"named '%s'") % C.SERVICE_PROFILE).encode('utf-8'), |
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149 coerceUnicode], |
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150 ['data_dir', 'd', DATA_DIR_DEFAULT, _(u'Data directory for ' |
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151 u'Libervia legacy').encode('utf-8'), coerceDataDir], |
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152 ['allow_registration', '', True, _(u'Allow user to register new ' |
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153 u'account').encode('utf-8'), coerceBool], |
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154 ['base_url_ext', '', '', |
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155 _(u'The external URL to use as base URL').encode('utf-8'), |
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156 coerceUnicode], |
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157 ] |
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158 # Options which are in sat.conf only |
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159 OPT_PARAMETERS_CFG = [ |
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160 ["empty_password_allowed_warning_dangerous_list", None, "", None], |
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161 ["vhosts_dict", None, {}, None], |
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162 ["url_redirections_dict", None, {}, None], |
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163 ["menu_json", None, {u'': C.DEFAULT_MENU}, None], |
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164 ["tickets_trackers_json", None, None, None], |
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165 ["mr_handlers_json", None, None, None], |
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166 ] |
514 | 167 |
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168 |
514 | 169 def initialise(options): |
170 """Method to initialise global modules""" | |
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171 # XXX: We need to configure logs before any log method is used, |
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172 # so here is the best place. |
514 | 173 from sat.core import log_config |
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174 |
514 | 175 log_config.satConfigure(C.LOG_BACKEND_TWISTED, C, backend_data=options) |
176 from libervia.server import server | |
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177 |
514 | 178 # we can't import this file from libervia.server.server because it's not a true module |
179 # (there is no __init__.py file, as required by twistd plugin system), so we set the | |
180 # global values from here | |
181 server.DATA_DIR_DEFAULT = DATA_DIR_DEFAULT | |
182 server.OPT_PARAMETERS_BOTH = OPT_PARAMETERS_BOTH | |
183 server.OPT_PARAMETERS_CFG = OPT_PARAMETERS_CFG | |
184 server.coerceDataDir = coerceDataDir | |
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185 |
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186 |
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187 class Options(usage.Options): |
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188 # optArgs is not really useful in our case, we need more than a flag |
514 | 189 optParameters = OPT_PARAMETERS_BOTH |
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190 |
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191 def __init__(self): |
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192 """Read SàT configuration file in order to overwrite the hard-coded default values |
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193 |
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194 Priority for the usage of the values is (from lowest to highest): |
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195 - hard-coded default values |
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196 - values from SàT configuration files |
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197 - values passed on the command line |
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198 """ |
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199 # If we do it the reading later: after the command line options have been parsed, |
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200 # there's no good way to know |
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201 # if the options values are the hard-coded ones or if they have been passed |
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202 # on the command line. |
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203 |
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204 # FIXME: must be refactored + code can be factorised with backend |
811 | 205 config_parser = ConfigParser.SafeConfigParser() |
206 config_parser.read(C.CONFIG_FILES) | |
207 self.handleDeprecated(config_parser) | |
514 | 208 for param in self.optParameters + OPT_PARAMETERS_CFG: |
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209 name = param[0] |
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210 try: |
811 | 211 value = config.getConfig(config_parser, CONFIG_SECTION, name, Exception) |
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212 if isinstance(value, unicode): |
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213 value = value.encode("utf-8") |
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214 try: |
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215 param[2] = param[4](value) |
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216 except IndexError: # the coerce method is optional |
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217 param[2] = value |
811 | 218 except (ConfigParser.NoSectionError, ConfigParser.NoOptionError): |
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219 pass |
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220 usage.Options.__init__(self) |
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221 for opt_data in OPT_PARAMETERS_CFG: |
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222 self[opt_data[0]] = opt_data[2] |
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223 |
811 | 224 def handleDeprecated(self, config_parser): |
225 """display warning and/or change option when a deprecated option if found | |
226 | |
227 param config_parser(ConfigParser): read ConfigParser instance for sat.conf | |
228 """ | |
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229 replacements = (("ssl_certificate", "tls_certificate"),) |
811 | 230 for old, new in replacements: |
231 try: | |
232 value = config.getConfig(config_parser, CONFIG_SECTION, old, Exception) | |
233 except (ConfigParser.NoSectionError, ConfigParser.NoOptionError): | |
234 pass | |
235 else: | |
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236 print(u"\n/!\\ Use of {old} is deprecated, please use {new} instead\n" |
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237 .format(old=old, new=new)) |
811 | 238 config_parser.set(CONFIG_SECTION, new, value) |
239 | |
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240 |
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241 class LiberviaMaker(object): |
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242 implements(IServiceMaker, IPlugin) |
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243 |
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244 tapname = C.APP_NAME_FILE |
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245 description = _(u"The web frontend of Salut à Toi") |
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246 options = Options |
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247 |
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248 def makeService(self, options): |
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249 for opt in OPT_PARAMETERS_BOTH: |
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250 # FIXME: that's a ugly way to get unicode in Libervia |
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251 # from command line or sat.conf |
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252 # we should move to argparse and handle options this properly |
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253 try: |
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254 coerce_cb = opt[4] |
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255 except IndexError: |
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256 continue |
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257 if coerce_cb == coerceUnicode: |
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258 options[opt[0]] = options[opt[0]].decode("utf-8") |
514 | 259 initialise(options.parent) |
260 from libervia.server import server | |
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261 |
810 | 262 return server.Libervia(options) |
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263 |
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264 |
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265 # affectation to some variable is necessary for twisted introspection to work |
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266 serviceMaker = LiberviaMaker() |