Mercurial > p > roundup > code

annotate roundup/xmlrpc.py @ 3833:ee377c7c90fe

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clean up
author Richard Jones <richard@users.sourceforge.net>
date Mon, 26 Mar 2007 06:19:55 +0000
parents ba6ba8d6bcc1
children cf6c45201980
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
3828
ba6ba8d6bcc1 Initial checkin for new xmlrpc frontend.
Stefan Seefeld <stefan@seefeld.name>
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1 #
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2 # Copyright (C) 2007 Stefan Seefeld
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3 # All rights reserved.
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4 # Licensed to the public under the terms of the GNU LGPL (>= 2),
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5 # see the file COPYING for details.
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6 #
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7
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8
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9 import base64
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10 import roundup.instance
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11 from roundup import hyperdb
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12 from roundup.cgi.exceptions import *
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13 from roundup.admin import UsageError
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14 from SimpleXMLRPCServer import SimpleXMLRPCRequestHandler
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15
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16 class RoundupRequestHandler(SimpleXMLRPCRequestHandler):
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17 """A SimpleXMLRPCRequestHandler with support for basic
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18 HTTP Authentication."""
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19
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20 def do_POST(self):
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21 """Extract username and password from authorization header."""
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22
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23 # Try to extract username and password from HTTP Authentication.
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24 self.username = None
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25 self.password = None
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26 authorization = self.headers.get('authorization', ' ')
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27 scheme, challenge = authorization.split(' ', 1)
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28
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29 if scheme.lower() == 'basic':
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30 decoded = base64.decodestring(challenge)
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31 self.username, self.password = decoded.split(':')
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32
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33 SimpleXMLRPCRequestHandler.do_POST(self)
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34
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35 def _dispatch(self, method, params):
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36 """Inject username and password into function arguments."""
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37
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38 # Add username and password to function arguments
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39 params = [self.username, self.password] + list(params)
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40 return self.server._dispatch(method, params)
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41
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42
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43 class RoundupRequest:
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44 """Little helper class to handle common per-request tasks such
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45 as authentication and login."""
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46
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47 def __init__(self, tracker, username, password):
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48 """Open the database for the given tracker, using the given
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49 username and password."""
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50
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51 self.tracker = tracker
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52 self.db = self.tracker.open('admin')
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53 try:
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54 userid = self.db.user.lookup(username)
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55 except KeyError: # No such user
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56 raise Unauthorised, 'Invalid user.'
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57 stored = self.db.user.get(userid, 'password')
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58 if stored != password: # Wrong password
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59 raise Unauthorised, 'Invalid user.'
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60 self.db.setCurrentUser(username)
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61
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62 def __del__(self):
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63 """Close the database, after committing any changes, if needed."""
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64
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65 if getattr(self, 'db'):
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66 try:
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67 if self.db.transactions:
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68 self.db.commit()
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69 finally:
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70 self.db.close()
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71
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72
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73 def get_class(self, classname):
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74 """Return the class for the given classname."""
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75
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76 try:
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77 return self.db.getclass(classname)
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78 except KeyError:
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79 raise UsageError, 'no such class "%s"'%classname
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80
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81 def props_from_args(self, cl, args):
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82 """Construct a list of properties from the given arguments,
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83 and return them after validation."""
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84
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85 props = {}
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86 for arg in args:
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87 if arg.find('=') == -1:
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88 raise UsageError, 'argument "%s" not propname=value'%arg
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89 l = arg.split('=')
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90 if len(l) < 2:
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91 raise UsageError, 'argument "%s" not propname=value'%arg
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92 key, value = l[0], '='.join(l[1:])
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93 if value:
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94 try:
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95 props[key] = hyperdb.rawToHyperdb(self.db, cl, None,
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96 key, value)
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97 except hyperdb.HyperdbValueError, message:
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98 raise UsageError, message
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99 else:
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100 props[key] = None
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101
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102 return props
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103
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104
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105 #The server object
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106 class RoundupServer:
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107 """The RoundupServer provides the interface accessible through
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108 the Python XMLRPC mapping. All methods take an additional username
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109 and password argument so each request can be authenticated."""
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110
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111 def __init__(self, tracker, verbose = False):
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112 self.tracker = roundup.instance.open(tracker)
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113 self.verbose = verbose
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114
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115 def list(self, username, password, classname, propname = None):
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116
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117 r = RoundupRequest(self.tracker, username, password)
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118 cl = r.get_class(classname)
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119 if not propname:
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120 propname = cl.labelprop()
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121 return [cl.get(id, propname) for id in cl.list()]
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122
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123 def display(self, username, password, designator, *properties):
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124
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125 r = RoundupRequest(self.tracker, username, password)
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126 classname, nodeid = hyperdb.splitDesignator(designator)
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127 cl = r.get_class(classname)
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128 props = properties and list(properties) or cl.properties.keys()
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129 props.sort()
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130 return dict([(property, cl.get(nodeid, property))
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131 for property in props])
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132
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133 def create(self, username, password, classname, *args):
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134
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135 r = RoundupRequest(self.tracker, username, password)
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136 cl = r.get_class(classname)
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137
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138 # convert types
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139 props = r.props_from_args(cl, args)
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140
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141 # check for the key property
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142 key = cl.getkey()
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143 if key and not props.has_key(key):
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144 raise UsageError, 'you must provide the "%s" property.'%key
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145
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146 # do the actual create
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147 try:
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148 return cl.create(**props)
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149 except (TypeError, IndexError, ValueError), message:
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150 raise UsageError, message
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151
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152 def set(self, username, password, designator, *args):
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153
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154 r = RoundupRequest(self.tracker, username, password)
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155 classname, itemid = hyperdb.splitDesignator(designator)
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156 cl = r.get_class(classname)
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157
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158 # convert types
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159 props = r.props_from_args(cl, args)
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160 try:
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161 cl.set(itemid, **props)
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162 except (TypeError, IndexError, ValueError), message:
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163 raise UsageError, message
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164
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165
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