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annotate rhodecode/controllers/api/__init__.py @ 2656:c785ad556d44 beta

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added extra logging into API calls
author Marcin Kuzminski <marcin@python-works.com>
date Tue, 24 Jul 2012 22:15:47 +0200
parents 7ac09514a178
children 63e58ef80ef1 9b92cf5a0cca
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1 # -*- coding: utf-8 -*-
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2 """
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3 rhodecode.controllers.api
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4 ~~~~~~~~~~~~~~~~~~~~~~~~~
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5
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6 JSON RPC controller
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7
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8 :created_on: Aug 20, 2011
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9 :author: marcink
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10 :copyright: (C) 2011-2012 Marcin Kuzminski <marcin@python-works.com>
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11 :license: GPLv3, see COPYING for more details.
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12 """
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13 # This program is free software; you can redistribute it and/or
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14 # modify it under the terms of the GNU General Public License
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15 # as published by the Free Software Foundation; version 2
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16 # of the License or (at your opinion) any later version of the license.
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17 #
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18 # This program is distributed in the hope that it will be useful,
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19 # but WITHOUT ANY WARRANTY; without even the implied warranty of
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20 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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21 # GNU General Public License for more details.
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22 #
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23 # You should have received a copy of the GNU General Public License
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24 # along with this program; if not, write to the Free Software
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25 # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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26 # MA 02110-1301, USA.
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27
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28 import inspect
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29 import logging
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30 import types
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31 import urllib
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32 import traceback
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33 import time
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34
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35 from rhodecode.lib.compat import izip_longest, json
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36
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37 from paste.response import replace_header
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38
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39 from pylons.controllers import WSGIController
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40
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41
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42 from webob.exc import HTTPNotFound, HTTPForbidden, HTTPInternalServerError, \
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43 HTTPBadRequest, HTTPError
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44
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45 from rhodecode.model.db import User
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46 from rhodecode.lib.auth import AuthUser
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47 from rhodecode.lib.base import _get_ip_addr, _get_access_path
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48 from rhodecode.lib.utils2 import safe_unicode
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49
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50 log = logging.getLogger('JSONRPC')
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51
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52
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53 class JSONRPCError(BaseException):
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54
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55 def __init__(self, message):
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56 self.message = message
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57 super(JSONRPCError, self).__init__()
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58
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59 def __str__(self):
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60 return str(self.message)
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61
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62
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63 def jsonrpc_error(message, retid=None, code=None):
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64 """
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65 Generate a Response object with a JSON-RPC error body
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66 """
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67 from pylons.controllers.util import Response
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68 return Response(
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69 body=json.dumps(dict(id=retid, result=None, error=message)),
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70 status=code,
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71 content_type='application/json'
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72 )
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74
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75 class JSONRPCController(WSGIController):
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76 """
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77 A WSGI-speaking JSON-RPC controller class
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78
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79 See the specification:
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80 <http://json-rpc.org/wiki/specification>`.
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81
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82 Valid controller return values should be json-serializable objects.
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83
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84 Sub-classes should catch their exceptions and raise JSONRPCError
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85 if they want to pass meaningful errors to the client.
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86
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87 """
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88
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89 def _get_method_args(self):
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90 """
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91 Return `self._rpc_args` to dispatched controller method
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92 chosen by __call__
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93 """
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94 return self._rpc_args
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95
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96 def __call__(self, environ, start_response):
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97 """
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98 Parse the request body as JSON, look up the method on the
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99 controller and if it exists, dispatch to it.
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100 """
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101 start = time.time()
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102 self._req_id = None
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103 if 'CONTENT_LENGTH' not in environ:
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104 log.debug("No Content-Length")
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105 return jsonrpc_error(retid=self._req_id,
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106 message="No Content-Length in request")
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107 else:
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108 length = environ['CONTENT_LENGTH'] or 0
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109 length = int(environ['CONTENT_LENGTH'])
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110 log.debug('Content-Length: %s' % length)
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111
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112 if length == 0:
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113 log.debug("Content-Length is 0")
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114 return jsonrpc_error(retid=self._req_id,
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115 message="Content-Length is 0")
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116
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117 raw_body = environ['wsgi.input'].read(length)
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118
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119 try:
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120 json_body = json.loads(urllib.unquote_plus(raw_body))
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121 except ValueError, e:
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122 # catch JSON errors Here
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123 return jsonrpc_error(retid=self._req_id,
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124 message="JSON parse error ERR:%s RAW:%r" \
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125 % (e, urllib.unquote_plus(raw_body)))
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126
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127 # check AUTH based on API KEY
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128 try:
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129 self._req_api_key = json_body['api_key']
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130 self._req_id = json_body['id']
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131 self._req_method = json_body['method']
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132 self._request_params = json_body['args']
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133 log.debug(
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134 'method: %s, params: %s' % (self._req_method,
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135 self._request_params)
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136 )
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137 except KeyError, e:
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138 return jsonrpc_error(retid=self._req_id,
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139 message='Incorrect JSON query missing %s' % e)
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140
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141 # check if we can find this session using api_key
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142 try:
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143 u = User.get_by_api_key(self._req_api_key)
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144 if u is None:
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145 return jsonrpc_error(retid=self._req_id,
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146 message='Invalid API KEY')
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147 auth_u = AuthUser(u.user_id, self._req_api_key)
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148 except Exception, e:
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149 return jsonrpc_error(retid=self._req_id,
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diff changeset
150 message='Invalid API KEY')
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151
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152 self._error = None
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153 try:
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154 self._func = self._find_method()
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155 except AttributeError, e:
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156 return jsonrpc_error(retid=self._req_id,
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diff changeset
157 message=str(e))
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158
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159 # now that we have a method, add self._req_params to
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160 # self.kargs and dispatch control to WGIController
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161 argspec = inspect.getargspec(self._func)
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162 arglist = argspec[0][1:]
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163 defaults = map(type, argspec[3] or [])
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164 default_empty = types.NotImplementedType
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165
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166 # kw arguments required by this method
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167 func_kwargs = dict(izip_longest(reversed(arglist), reversed(defaults),
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168 fillvalue=default_empty))
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169
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170 # this is little trick to inject logged in user for
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171 # perms decorators to work they expect the controller class to have
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172 # rhodecode_user attribute set
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173 self.rhodecode_user = auth_u
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174
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175 # This attribute will need to be first param of a method that uses
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176 # api_key, which is translated to instance of user at that name
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177 USER_SESSION_ATTR = 'apiuser'
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178
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179 if USER_SESSION_ATTR not in arglist:
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180 return jsonrpc_error(
7ac09514a178 created rhodecode-api binary script for working with api via cli
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181 retid=self._req_id,
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182 message='This method [%s] does not support '
7ac09514a178 created rhodecode-api binary script for working with api via cli
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183 'authentication (missing %s param)' % (
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184 self._func.__name__, USER_SESSION_ATTR)
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185 )
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186
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187 # get our arglist and check if we provided them as args
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188 for arg, default in func_kwargs.iteritems():
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189 if arg == USER_SESSION_ATTR:
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190 # USER_SESSION_ATTR is something translated from api key and
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191 # this is checked before so we don't need validate it
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192 continue
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diff changeset
193
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194 # skip the required param check if it's default value is
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195 # NotImplementedType (default_empty)
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196 if (default == default_empty and arg not in self._request_params):
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197 return jsonrpc_error(
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diff changeset
198 retid=self._req_id,
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diff changeset
199 message=(
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200 'Missing non optional `%s` arg in JSON DATA' % arg
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diff changeset
201 )
631caf880b87 implements #329
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parents: 1708
diff changeset
202 )
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203
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diff changeset
204 self._rpc_args = {USER_SESSION_ATTR: u}
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diff changeset
205 self._rpc_args.update(self._request_params)
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206
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207 self._rpc_args['action'] = self._req_method
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208 self._rpc_args['environ'] = environ
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209 self._rpc_args['start_response'] = start_response
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diff changeset
210
c78f6bf52e9c Beginning of API implementation for rhodecode
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211 status = []
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212 headers = []
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213 exc_info = []
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diff changeset
214
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215 def change_content(new_status, new_headers, new_exc_info=None):
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216 status.append(new_status)
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217 headers.extend(new_headers)
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218 exc_info.append(new_exc_info)
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diff changeset
219
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diff changeset
220 output = WSGIController.__call__(self, environ, change_content)
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221 output = list(output)
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diff changeset
222 headers.append(('Content-Length', str(len(output[0]))))
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diff changeset
223 replace_header(headers, 'Content-Type', 'application/json')
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diff changeset
224 start_response(status[0], headers, exc_info[0])
2656
c785ad556d44 added extra logging into API calls
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diff changeset
225 log.info('IP: %s Request to %s time: %.3fs' % (
c785ad556d44 added extra logging into API calls
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parents: 2379
diff changeset
226 _get_ip_addr(environ),
c785ad556d44 added extra logging into API calls
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diff changeset
227 safe_unicode(_get_access_path(environ)), time.time() - start)
c785ad556d44 added extra logging into API calls
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diff changeset
228 )
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229 return output
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diff changeset
230
c78f6bf52e9c Beginning of API implementation for rhodecode
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diff changeset
231 def _dispatch_call(self):
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232 """
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233 Implement dispatch interface specified by WSGIController
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diff changeset
234 """
c78f6bf52e9c Beginning of API implementation for rhodecode
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diff changeset
235 try:
c78f6bf52e9c Beginning of API implementation for rhodecode
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diff changeset
236 raw_response = self._inspect_call(self._func)
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Marcin Kuzminski <marcin@python-works.com>
parents:
diff changeset
237 if isinstance(raw_response, HTTPError):
c78f6bf52e9c Beginning of API implementation for rhodecode
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diff changeset
238 self._error = str(raw_response)
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diff changeset
239 except JSONRPCError, e:
1445
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diff changeset
240 self._error = str(e)
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diff changeset
241 except Exception, e:
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parents: 1508
diff changeset
242 log.error('Encountered unhandled exception: %s' \
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diff changeset
243 % traceback.format_exc())
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diff changeset
244 json_exc = JSONRPCError('Internal server error')
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diff changeset
245 self._error = str(json_exc)
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diff changeset
246
c78f6bf52e9c Beginning of API implementation for rhodecode
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diff changeset
247 if self._error is not None:
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diff changeset
248 raw_response = None
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diff changeset
249
1818
cf51bbfb120e auto white-space removal
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diff changeset
250 response = dict(id=self._req_id, result=raw_response,
1708
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diff changeset
251 error=self._error)
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diff changeset
252
c78f6bf52e9c Beginning of API implementation for rhodecode
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diff changeset
253 try:
c78f6bf52e9c Beginning of API implementation for rhodecode
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diff changeset
254 return json.dumps(response)
c78f6bf52e9c Beginning of API implementation for rhodecode
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diff changeset
255 except TypeError, e:
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parents: 1976
diff changeset
256 log.error('API FAILED. Error encoding response: %s' % e)
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diff changeset
257 return json.dumps(
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parents: 1793
diff changeset
258 dict(
2151
12ceeda33339 #404 API extensions for showing permission for users
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parents: 1976
diff changeset
259 id=self._req_id,
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diff changeset
260 result=None,
6274adc06988 fixed RPC call for api that was missing request id
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parents: 1793
diff changeset
261 error="Error encoding response"
6274adc06988 fixed RPC call for api that was missing request id
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parents: 1793
diff changeset
262 )
6274adc06988 fixed RPC call for api that was missing request id
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parents: 1793
diff changeset
263 )
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parents:
diff changeset
264
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parents:
diff changeset
265 def _find_method(self):
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parents:
diff changeset
266 """
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diff changeset
267 Return method named by `self._req_method` in controller if able
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parents:
diff changeset
268 """
1976
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parents: 1824
diff changeset
269 log.debug('Trying to find JSON-RPC method: %s' % self._req_method)
1445
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diff changeset
270 if self._req_method.startswith('_'):
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diff changeset
271 raise AttributeError("Method not allowed")
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parents:
diff changeset
272
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diff changeset
273 try:
c78f6bf52e9c Beginning of API implementation for rhodecode
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parents:
diff changeset
274 func = getattr(self, self._req_method, None)
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parents:
diff changeset
275 except UnicodeEncodeError:
c78f6bf52e9c Beginning of API implementation for rhodecode
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parents:
diff changeset
276 raise AttributeError("Problem decoding unicode in requested "
c78f6bf52e9c Beginning of API implementation for rhodecode
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parents:
diff changeset
277 "method name.")
c78f6bf52e9c Beginning of API implementation for rhodecode
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parents:
diff changeset
278
c78f6bf52e9c Beginning of API implementation for rhodecode
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parents:
diff changeset
279 if isinstance(func, types.MethodType):
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diff changeset
280 return func
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parents:
diff changeset
281 else:
c78f6bf52e9c Beginning of API implementation for rhodecode
Marcin Kuzminski <marcin@python-works.com>
parents:
diff changeset
282 raise AttributeError("No such method: %s" % self._req_method)