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annotate roundup/instance.py @ 6681:ab2ed11c021e

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issue2551205: Add support for specifying valid origins for api: xmlrpc/rest We now have an allow list to filter the hosts allowed to do api requests. An element of this allow list must match the http ORIGIN header exactly or the rest/xmlrpc CORS request will result in an error. The tracker host is always allowed to do a request.
author John Rouillard <rouilj@ieee.org>
date Tue, 17 May 2022 17:18:51 -0400
parents 408fd477761f
children ca90f7270cd4 07ce4e4110f5
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1 #
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2 # Copyright (c) 2001 Bizar Software Pty Ltd (http://www.bizarsoftware.com.au/)
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3 # This module is free software, and you may redistribute it and/or modify
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4 # under the same terms as Python, so long as this copyright message and
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5 # disclaimer are retained in their original form.
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6 #
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7 # IN NO EVENT SHALL BIZAR SOFTWARE PTY LTD BE LIABLE TO ANY PARTY FOR
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8 # DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING
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9 # OUT OF THE USE OF THIS CODE, EVEN IF THE AUTHOR HAS BEEN ADVISED OF THE
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10 # POSSIBILITY OF SUCH DAMAGE.
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11 #
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12 # BIZAR SOFTWARE PTY LTD SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
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13 # BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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14 # FOR A PARTICULAR PURPOSE. THE CODE PROVIDED HEREUNDER IS ON AN "AS IS"
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15 # BASIS, AND THERE IS NO OBLIGATION WHATSOEVER TO PROVIDE MAINTENANCE,
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16 # SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
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17 #
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18
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19 """Top-level tracker interface.
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20
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21 Open a tracker with:
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22
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23 >>> from roundup import instance
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24 >>> db = instance.open('path to tracker home')
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25
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26 The "db" handle you get back is the tracker's hyperdb which has the interface
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27 described in `roundup.hyperdb.Database`.
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28 """
2005
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29 __docformat__ = 'restructuredtext'
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30
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31 try:
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32 import builtins
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33 except ImportError:
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34 import __builtin__ as builtins
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35
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36 try:
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37 from collections.abc import Callable
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38 except ImportError:
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39 from collections import Callable
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40
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41 import os
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42 import sys
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43 import warnings
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44
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45 from roundup import configuration, mailgw
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46 from roundup import hyperdb, backends, actions
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47 from roundup.cgi import client, templating
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48 from roundup.cgi import actions as cgi_actions
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49 from roundup.exceptions import RoundupException
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50
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51
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52 class Tracker:
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53 def __init__(self, tracker_home, optimize=0):
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54 """New-style tracker instance constructor
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55
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56 Parameters:
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57 tracker_home:
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58 tracker home directory
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59 optimize:
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60 if set, precompile html templates
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61
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62 """
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63 self.tracker_home = tracker_home
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64 self.optimize = optimize
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65 # if set, call schema_hook after executing schema.py will get
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66 # same variables (in particular db) as schema.py main purpose is
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67 # for regression tests
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68 self.schema_hook = None
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69 self.config = configuration.CoreConfig(tracker_home)
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70 self.actions = {}
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71 self.cgi_actions = {}
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72 self.templating_utils = {}
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74 libdir = os.path.join(self.tracker_home, 'lib')
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75 self.libdir = os.path.isdir(libdir) and libdir or ''
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76
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77 self.load_interfaces()
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78 self.templates = templating.get_loader(self.config["TEMPLATES"],
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79 self.config["TEMPLATE_ENGINE"])
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80
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81 rdbms_backend = self.config.RDBMS_BACKEND
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82
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83 self.backend = backends.get_backend(rdbms_backend)
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84
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85 if self.optimize:
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86 self.templates.precompile()
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87 # initialize tracker extensions
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88 for extension in self.get_extensions('extensions'):
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89 extension(self)
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90 # load database schema
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91 self.schema = self._compile('schema.py')
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92 # load database detectors
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93 self.detectors = self.get_extensions('detectors')
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94 # db_open is set to True after first open()
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95 self.db_open = 0
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96
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97 def open(self, name=None):
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98 # load the database schema
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99 # we cannot skip this part even if self.optimize is set
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100 # because the schema has security settings that must be
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101 # applied to each database instance
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102 backend = self.backend
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103 env = {
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104 'Class': backend.Class,
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105 'FileClass': backend.FileClass,
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106 'IssueClass': backend.IssueClass,
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107 'String': hyperdb.String,
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108 'Password': hyperdb.Password,
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109 'Date': hyperdb.Date,
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110 'Link': hyperdb.Link,
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111 'Multilink': hyperdb.Multilink,
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112 'Interval': hyperdb.Interval,
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113 'Boolean': hyperdb.Boolean,
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114 'Number': hyperdb.Number,
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115 'Integer': hyperdb.Integer,
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116 'db': backend.Database(self.config, name)
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117 }
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118
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119 if self.optimize:
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120 # execute preloaded schema object
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121 self._exec(self.schema, env)
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122 if isinstance(self.schema_hook, Callable):
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123 self.schema_hook(**env)
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124 # use preloaded detectors
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125 detectors = self.detectors
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126 else:
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127 # execute the schema file
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128 self._execfile('schema.py', env)
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129 if isinstance(self.schema_hook, Callable):
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130 self.schema_hook(**env)
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131 # reload extensions and detectors
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132 for extension in self.get_extensions('extensions'):
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133 extension(self)
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134 detectors = self.get_extensions('detectors')
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135 db = env['db']
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136 db.tx_Source = None
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137 # Useful for script when multiple open calls happen. Scripts have
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138 # to inject the i18n object, there is currently no support for this
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139 if hasattr(self, 'i18n'):
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140 db.i18n = self.i18n
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141
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142 # apply the detectors
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143 for detector in detectors:
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144 detector(db)
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145 # if we are running in debug mode
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146 # or this is the first time the database is opened,
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147 # do database upgrade checks
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148 if not (self.optimize and self.db_open):
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149 # As a consistency check, ensure that every link property is
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150 # pointing at a defined class. Otherwise, the schema is
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151 # internally inconsistent. This is an important safety
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152 # measure as it protects against an accidental schema change
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153 # dropping a table while there are still links to the table;
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154 # once the table has been dropped, there is no way to get it
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155 # back, so it is important to drop it only if we are as sure
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156 # as possible that it is no longer needed.
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157 classes = db.getclasses()
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158 for classname in classes:
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159 cl = db.getclass(classname)
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160 for propname, prop in cl.getprops().items():
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161 if not isinstance(prop, (hyperdb.Link,
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162 hyperdb.Multilink)):
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163 continue
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164 linkto = prop.classname
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165 if linkto not in classes:
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166 raise ValueError("property %s.%s links to "
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167 "non-existent class %s"
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168 % (classname, propname, linkto))
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169
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170 self.db_open = 1
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171 # *Must* call post_init! It is not an error if called multiple times.
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172 db.post_init()
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173 return db
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174
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175 def load_interfaces(self):
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176 """load interfaces.py (if any), initialize Client and MailGW attrs"""
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177 env = {}
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178 if os.path.isfile(os.path.join(self.tracker_home, 'interfaces.py')):
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179 self._execfile('interfaces.py', env)
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180 self.Client = env.get('Client', client.Client)
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181 self.MailGW = env.get('MailGW', mailgw.MailGW)
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182 self.TemplatingUtils = env.get('TemplatingUtils',
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183 templating.TemplatingUtils)
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184
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185 def get_extensions(self, dirname):
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186 """Load python extensions
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187
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188 Parameters:
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189 dirname:
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190 extension directory name relative to tracker home
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191
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192 Return value:
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193 list of init() functions for each extension
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194
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195 """
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196 extensions = []
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197 dirpath = os.path.join(self.tracker_home, dirname)
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198 if os.path.isdir(dirpath):
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199 sys.path.insert(1, dirpath)
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200 for name in os.listdir(dirpath):
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201 if not name.endswith('.py'):
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202 continue
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203 env = {}
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204 self._execfile(os.path.join(dirname, name), env)
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205 extensions.append(env['init'])
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206 sys.path.remove(dirpath)
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207 return extensions
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208
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209 def init(self, adminpw, tx_Source=None):
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210 db = self.open('admin')
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211 db.tx_Source = tx_Source
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212 self._execfile('initial_data.py',
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213 {'db': db, 'adminpw': adminpw,
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214 'admin_email': self.config['ADMIN_EMAIL']})
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215 db.commit()
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216 db.close()
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217
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218 def exists(self):
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219 return self.backend.db_exists(self.config)
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220
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221 def nuke(self):
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222 self.backend.db_nuke(self.config)
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223
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224 def _compile(self, fname):
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225 fname = os.path.join(self.tracker_home, fname)
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226 with builtins.open(fname) as fnamed:
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227 return compile(fnamed.read(), fname, 'exec')
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228
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229 def _exec(self, obj, env):
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230 if self.libdir:
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231 sys.path.insert(1, self.libdir)
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232 exec(obj, env)
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233 if self.libdir:
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234 sys.path.remove(self.libdir)
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235 return env
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236
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237 def _execfile(self, fname, env):
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238 self._exec(self._compile(fname), env)
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239
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240 def registerAction(self, name, action):
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241
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242 # The logic here is this:
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243 # * if `action` derives from actions.Action,
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244 # it is executable as a generic action.
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245 # * if, moreover, it also derives from cgi.actions.Bridge,
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246 # it may in addition be called via CGI
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247 # * in all other cases we register it as a CGI action, without
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248 # any check (for backward compatibility).
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249 if issubclass(action, actions.Action):
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250 self.actions[name] = action
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251 if issubclass(action, cgi_actions.Bridge):
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252 self.cgi_actions[name] = action
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253 else:
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254 self.cgi_actions[name] = action
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255
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256 def registerUtil(self, name, function):
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257 self.templating_utils[name] = function
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258
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259
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260 class TrackerError(RoundupException):
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261 pass
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262
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263
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264 def open(tracker_home, optimize=0):
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d2801a2b0a77 Initial implementation (half-baked) at new Tracker instance.
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265 if os.path.exists(os.path.join(tracker_home, 'dbinit.py')):
d2801a2b0a77 Initial implementation (half-baked) at new Tracker instance.
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266 # user should upgrade...
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267 raise TrackerError("Old style trackers using dbinit.py "
778a9f455067 Remove old code import imp, old style trackers db/backend_name
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268 "are not supported after release 2.0")
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269
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Alexander Smishlajev <a1s@users.sourceforge.net>
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270 return Tracker(tracker_home, optimize=optimize)
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271
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d344419d599d use new style config;
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272 # vim: set filetype=python sts=4 sw=4 et si :
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