root / kamaki / clients / __init__.py @ b773795c
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1 | e3f01d64 | Stavros Sachtouris | # Copyright 2011-2013 GRNET S.A. All rights reserved.
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2 | a1c50326 | Giorgos Verigakis | #
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3 | a1c50326 | Giorgos Verigakis | # Redistribution and use in source and binary forms, with or
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4 | a1c50326 | Giorgos Verigakis | # without modification, are permitted provided that the following
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5 | a1c50326 | Giorgos Verigakis | # conditions are met:
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6 | a1c50326 | Giorgos Verigakis | #
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7 | a1c50326 | Giorgos Verigakis | # 1. Redistributions of source code must retain the above
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8 | e742badc | Stavros Sachtouris | # copyright notice, self.list of conditions and the following
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9 | a1c50326 | Giorgos Verigakis | # disclaimer.
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10 | a1c50326 | Giorgos Verigakis | #
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11 | a1c50326 | Giorgos Verigakis | # 2. Redistributions in binary form must reproduce the above
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12 | e742badc | Stavros Sachtouris | # copyright notice, self.list of conditions and the following
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13 | a1c50326 | Giorgos Verigakis | # disclaimer in the documentation and/or other materials
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14 | a1c50326 | Giorgos Verigakis | # provided with the distribution.
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15 | a1c50326 | Giorgos Verigakis | #
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16 | a1c50326 | Giorgos Verigakis | # THIS SOFTWARE IS PROVIDED BY GRNET S.A. ``AS IS'' AND ANY EXPRESS
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17 | a1c50326 | Giorgos Verigakis | # OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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18 | a1c50326 | Giorgos Verigakis | # WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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19 | a1c50326 | Giorgos Verigakis | # PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GRNET S.A OR
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20 | a1c50326 | Giorgos Verigakis | # CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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21 | a1c50326 | Giorgos Verigakis | # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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22 | a1c50326 | Giorgos Verigakis | # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
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23 | a1c50326 | Giorgos Verigakis | # USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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24 | a1c50326 | Giorgos Verigakis | # AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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25 | a1c50326 | Giorgos Verigakis | # LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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26 | a1c50326 | Giorgos Verigakis | # ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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27 | a1c50326 | Giorgos Verigakis | # POSSIBILITY OF SUCH DAMAGE.
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28 | a1c50326 | Giorgos Verigakis | #
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29 | a1c50326 | Giorgos Verigakis | # The views and conclusions contained in the software and
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30 | a1c50326 | Giorgos Verigakis | # documentation are those of the authors and should not be
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31 | a1c50326 | Giorgos Verigakis | # interpreted as representing official policies, either expressed
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32 | a1c50326 | Giorgos Verigakis | # or implied, of GRNET S.A.
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33 | a1c50326 | Giorgos Verigakis | |
34 | 545c6c29 | Stavros Sachtouris | from urllib2 import quote, unquote |
35 | c2b5da2f | Stavros Sachtouris | from urlparse import urlparse |
36 | 2b74ab4a | Stavros Sachtouris | from threading import Thread |
37 | de4f08ef | Stavros Sachtouris | from json import dumps, loads |
38 | cad39033 | Stavros Sachtouris | from time import time |
39 | ec928235 | Stavros Sachtouris | from httplib import ResponseNotReady, HTTPException |
40 | c2b5da2f | Stavros Sachtouris | from time import sleep |
41 | c2b5da2f | Stavros Sachtouris | from random import random |
42 | c4d51ec9 | Stavros Sachtouris | from logging import getLogger |
43 | c2b5da2f | Stavros Sachtouris | |
44 | c2b5da2f | Stavros Sachtouris | from objpool.http import PooledHTTPConnection |
45 | 61ca0ecd | Stavros Sachtouris | |
46 | 6a0b1658 | Giorgos Verigakis | |
47 | 21871fb2 | Stavros Sachtouris | TIMEOUT = 60.0 # seconds |
48 | 21871fb2 | Stavros Sachtouris | HTTP_METHODS = ['GET', 'POST', 'PUT', 'HEAD', 'DELETE', 'COPY', 'MOVE'] |
49 | 2406db97 | Stavros Sachtouris | |
50 | c4d51ec9 | Stavros Sachtouris | log = getLogger(__name__) |
51 | c4d51ec9 | Stavros Sachtouris | sendlog = getLogger('%s.send' % __name__)
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52 | c4d51ec9 | Stavros Sachtouris | recvlog = getLogger('%s.recv' % __name__)
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53 | e8af27f4 | Stavros Sachtouris | |
54 | c2b5da2f | Stavros Sachtouris | |
55 | c2b5da2f | Stavros Sachtouris | def _encode(v): |
56 | c2b5da2f | Stavros Sachtouris | if v and isinstance(v, unicode): |
57 | c2b5da2f | Stavros Sachtouris | return quote(v.encode('utf-8')) |
58 | c2b5da2f | Stavros Sachtouris | return v
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59 | c2b5da2f | Stavros Sachtouris | |
60 | 3dabe5d2 | Stavros Sachtouris | |
61 | a1c50326 | Giorgos Verigakis | class ClientError(Exception): |
62 | 4f989909 | Stavros Sachtouris | def __init__(self, message, status=0, details=None): |
63 | e9db8806 | Stavros Sachtouris | log.debug('ClientError: msg[%s], sts[%s], dtl[%s]' % (
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64 | 008a5db5 | Stavros Sachtouris | message, |
65 | 008a5db5 | Stavros Sachtouris | status, |
66 | 008a5db5 | Stavros Sachtouris | details)) |
67 | de4f08ef | Stavros Sachtouris | try:
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68 | 1f417830 | Stavros Sachtouris | message += '' if message and message[-1] == '\n' else '\n' |
69 | 062b1d0a | Stavros Sachtouris | serv_stat, sep, new_msg = message.partition('{')
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70 | f4de4c91 | Stavros Sachtouris | new_msg = sep + new_msg[:-1 if new_msg.endswith('\n') else 0] |
71 | 062b1d0a | Stavros Sachtouris | json_msg = loads(new_msg) |
72 | de4f08ef | Stavros Sachtouris | key = json_msg.keys()[0]
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73 | f4de4c91 | Stavros Sachtouris | serv_stat = serv_stat.strip() |
74 | 062b1d0a | Stavros Sachtouris | |
75 | de4f08ef | Stavros Sachtouris | json_msg = json_msg[key] |
76 | f4de4c91 | Stavros Sachtouris | message = '%s %s (%s)\n' % (
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77 | f4de4c91 | Stavros Sachtouris | serv_stat, |
78 | f4de4c91 | Stavros Sachtouris | key, |
79 | f4de4c91 | Stavros Sachtouris | json_msg['message']) if ( |
80 | f4de4c91 | Stavros Sachtouris | 'message' in json_msg) else '%s %s' % (serv_stat, key) |
81 | f4de4c91 | Stavros Sachtouris | status = json_msg.get('code', status)
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82 | de4f08ef | Stavros Sachtouris | if 'details' in json_msg: |
83 | de4f08ef | Stavros Sachtouris | if not details: |
84 | de4f08ef | Stavros Sachtouris | details = [] |
85 | f4de4c91 | Stavros Sachtouris | if not isinstance(details, list): |
86 | de4f08ef | Stavros Sachtouris | details = [details] |
87 | de4f08ef | Stavros Sachtouris | if json_msg['details']: |
88 | de4f08ef | Stavros Sachtouris | details.append(json_msg['details'])
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89 | f4de4c91 | Stavros Sachtouris | except Exception: |
90 | de4f08ef | Stavros Sachtouris | pass
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91 | f4de4c91 | Stavros Sachtouris | finally:
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92 | 5dde4c83 | Stavros Sachtouris | while message.endswith('\n\n'): |
93 | 5dde4c83 | Stavros Sachtouris | message = message[:-1]
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94 | f4de4c91 | Stavros Sachtouris | super(ClientError, self).__init__(message) |
95 | f4de4c91 | Stavros Sachtouris | self.status = status if isinstance(status, int) else 0 |
96 | f4de4c91 | Stavros Sachtouris | self.details = details if details else [] |
97 | a1c50326 | Giorgos Verigakis | |
98 | 3dabe5d2 | Stavros Sachtouris | |
99 | 5fdccdec | Stavros Sachtouris | class Logged(object): |
100 | 5fdccdec | Stavros Sachtouris | |
101 | 5fdccdec | Stavros Sachtouris | LOG_TOKEN = False
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102 | 5fdccdec | Stavros Sachtouris | LOG_DATA = False
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103 | 5fdccdec | Stavros Sachtouris | |
104 | 5fdccdec | Stavros Sachtouris | |
105 | 5fdccdec | Stavros Sachtouris | class RequestManager(Logged): |
106 | c2b5da2f | Stavros Sachtouris | """Handle http request information"""
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107 | c2b5da2f | Stavros Sachtouris | |
108 | c2b5da2f | Stavros Sachtouris | def _connection_info(self, url, path, params={}): |
109 | c2b5da2f | Stavros Sachtouris | """ Set self.url to scheme://netloc/?params
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110 | c2b5da2f | Stavros Sachtouris | :param url: (str or unicode) The service url
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111 | c2b5da2f | Stavros Sachtouris |
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112 | c2b5da2f | Stavros Sachtouris | :param path: (str or unicode) The service path (url/path)
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113 | c2b5da2f | Stavros Sachtouris |
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114 | c2b5da2f | Stavros Sachtouris | :param params: (dict) Parameters to add to final url
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115 | c2b5da2f | Stavros Sachtouris |
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116 | c2b5da2f | Stavros Sachtouris | :returns: (scheme, netloc)
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117 | c2b5da2f | Stavros Sachtouris | """
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118 | 819311d3 | Stavros Sachtouris | url = _encode(str(url)) if url else 'http://127.0.0.1/' |
119 | c2b5da2f | Stavros Sachtouris | url += '' if url.endswith('/') else '/' |
120 | c2b5da2f | Stavros Sachtouris | if path:
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121 | c2b5da2f | Stavros Sachtouris | url += _encode(path[1:] if path.startswith('/') else path) |
122 | 7fa5c263 | Stavros Sachtouris | delim = '?'
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123 | 7fa5c263 | Stavros Sachtouris | for key, val in params.items(): |
124 | c2b5da2f | Stavros Sachtouris | val = _encode(val) |
125 | 7fa5c263 | Stavros Sachtouris | url += '%s%s%s' % (delim, key, ('=%s' % val) if val else '') |
126 | 7fa5c263 | Stavros Sachtouris | delim = '&'
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127 | c2b5da2f | Stavros Sachtouris | parsed = urlparse(url) |
128 | c2b5da2f | Stavros Sachtouris | self.url = url
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129 | c2b5da2f | Stavros Sachtouris | self.path = parsed.path or '/' |
130 | c2b5da2f | Stavros Sachtouris | if parsed.query:
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131 | c2b5da2f | Stavros Sachtouris | self.path += '?%s' % parsed.query |
132 | c2b5da2f | Stavros Sachtouris | return (parsed.scheme, parsed.netloc)
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133 | c2b5da2f | Stavros Sachtouris | |
134 | c2b5da2f | Stavros Sachtouris | def __init__( |
135 | c2b5da2f | Stavros Sachtouris | self, method, url, path,
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136 | c2b5da2f | Stavros Sachtouris | data=None, headers={}, params={}):
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137 | c2b5da2f | Stavros Sachtouris | method = method.upper() |
138 | c2b5da2f | Stavros Sachtouris | assert method in HTTP_METHODS, 'Invalid http method %s' % method |
139 | c2b5da2f | Stavros Sachtouris | if headers:
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140 | c2b5da2f | Stavros Sachtouris | assert isinstance(headers, dict) |
141 | 7fa5c263 | Stavros Sachtouris | self.headers = dict(headers) |
142 | c2b5da2f | Stavros Sachtouris | self.method, self.data = method, data |
143 | c2b5da2f | Stavros Sachtouris | self.scheme, self.netloc = self._connection_info(url, path, params) |
144 | c2b5da2f | Stavros Sachtouris | |
145 | c4563114 | Stavros Sachtouris | def dump_log(self): |
146 | 5fdccdec | Stavros Sachtouris | sendlog.info('%s %s://%s%s\t[%s]' % (
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147 | 201baa17 | Stavros Sachtouris | self.method, self.scheme, self.netloc, self.path, self)) |
148 | 21871fb2 | Stavros Sachtouris | for key, val in self.headers.items(): |
149 | 5fdccdec | Stavros Sachtouris | if (not self.LOG_TOKEN) and key.lower() == 'x-auth-token': |
150 | 21871fb2 | Stavros Sachtouris | continue
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151 | 5fdccdec | Stavros Sachtouris | sendlog.info(' %s: %s\t[%s]' % (key, val, self)) |
152 | 21871fb2 | Stavros Sachtouris | if self.data: |
153 | 5fdccdec | Stavros Sachtouris | sendlog.info('data size:%s\t[%s]' % (len(self.data), self)) |
154 | 5fdccdec | Stavros Sachtouris | if self.LOG_DATA: |
155 | e9db8806 | Stavros Sachtouris | sendlog.info(self.data)
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156 | 21871fb2 | Stavros Sachtouris | else:
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157 | 5fdccdec | Stavros Sachtouris | sendlog.info('data size:0\t[%s]' % self) |
158 | 34b88989 | Stavros Sachtouris | sendlog.info('')
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159 | 21871fb2 | Stavros Sachtouris | |
160 | c2b5da2f | Stavros Sachtouris | def perform(self, conn): |
161 | c2b5da2f | Stavros Sachtouris | """
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162 | c2b5da2f | Stavros Sachtouris | :param conn: (httplib connection object)
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163 | c2b5da2f | Stavros Sachtouris |
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164 | c2b5da2f | Stavros Sachtouris | :returns: (HTTPResponse)
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165 | c2b5da2f | Stavros Sachtouris | """
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166 | c2b5da2f | Stavros Sachtouris | conn.request( |
167 | c2b5da2f | Stavros Sachtouris | method=str(self.method.upper()), |
168 | c2b5da2f | Stavros Sachtouris | url=str(self.path), |
169 | c2b5da2f | Stavros Sachtouris | headers=self.headers,
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170 | c2b5da2f | Stavros Sachtouris | body=self.data)
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171 | c4563114 | Stavros Sachtouris | self.dump_log()
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172 | f47417e7 | Stavros Sachtouris | keep_trying = TIMEOUT |
173 | f8eea8ec | Stavros Sachtouris | while keep_trying > 0: |
174 | c2b5da2f | Stavros Sachtouris | try:
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175 | c2b5da2f | Stavros Sachtouris | return conn.getresponse()
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176 | c2b5da2f | Stavros Sachtouris | except ResponseNotReady:
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177 | f8eea8ec | Stavros Sachtouris | wait = 0.03 * random()
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178 | f8eea8ec | Stavros Sachtouris | sleep(wait) |
179 | f8eea8ec | Stavros Sachtouris | keep_trying -= wait |
180 | 21871fb2 | Stavros Sachtouris | logmsg = 'Kamaki Timeout %s %s\t[%s]' % (self.method, self.path, self) |
181 | 34b88989 | Stavros Sachtouris | recvlog.debug(logmsg) |
182 | f8eea8ec | Stavros Sachtouris | raise ClientError('HTTPResponse takes too long - kamaki timeout') |
183 | c2b5da2f | Stavros Sachtouris | |
184 | c2b5da2f | Stavros Sachtouris | |
185 | 5fdccdec | Stavros Sachtouris | class ResponseManager(Logged): |
186 | c2b5da2f | Stavros Sachtouris | """Manage the http request and handle the response data, headers, etc."""
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187 | c2b5da2f | Stavros Sachtouris | |
188 | ec928235 | Stavros Sachtouris | def __init__(self, request, poolsize=None, connection_retry_limit=0): |
189 | c2b5da2f | Stavros Sachtouris | """
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190 | c2b5da2f | Stavros Sachtouris | :param request: (RequestManager)
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191 | ec928235 | Stavros Sachtouris |
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192 | ec928235 | Stavros Sachtouris | :param poolsize: (int) the size of the connection pool
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193 | ec928235 | Stavros Sachtouris |
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194 | ec928235 | Stavros Sachtouris | :param connection_retry_limit: (int)
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195 | c2b5da2f | Stavros Sachtouris | """
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196 | ec928235 | Stavros Sachtouris | self.CONNECTION_TRY_LIMIT = 1 + connection_retry_limit |
197 | c2b5da2f | Stavros Sachtouris | self.request = request
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198 | c2b5da2f | Stavros Sachtouris | self._request_performed = False |
199 | c2b5da2f | Stavros Sachtouris | self.poolsize = poolsize
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200 | c2b5da2f | Stavros Sachtouris | |
201 | c2b5da2f | Stavros Sachtouris | def _get_response(self): |
202 | c2b5da2f | Stavros Sachtouris | if self._request_performed: |
203 | c2b5da2f | Stavros Sachtouris | return
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204 | c2b5da2f | Stavros Sachtouris | |
205 | c2b5da2f | Stavros Sachtouris | pool_kw = dict(size=self.poolsize) if self.poolsize else dict() |
206 | ec928235 | Stavros Sachtouris | for retries in range(1, self.CONNECTION_TRY_LIMIT + 1): |
207 | ec928235 | Stavros Sachtouris | try:
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208 | ec928235 | Stavros Sachtouris | with PooledHTTPConnection(
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209 | ec928235 | Stavros Sachtouris | self.request.netloc, self.request.scheme, |
210 | ec928235 | Stavros Sachtouris | **pool_kw) as connection:
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211 | ec928235 | Stavros Sachtouris | self.request.LOG_TOKEN = self.LOG_TOKEN |
212 | ec928235 | Stavros Sachtouris | self.request.LOG_DATA = self.LOG_DATA |
213 | ec928235 | Stavros Sachtouris | r = self.request.perform(connection)
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214 | ec928235 | Stavros Sachtouris | recvlog.info('\n%s <-- %s <-- [req: %s]\n' % (
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215 | ec928235 | Stavros Sachtouris | self, r, self.request)) |
216 | ec928235 | Stavros Sachtouris | self._request_performed = True |
217 | ec928235 | Stavros Sachtouris | self._status_code, self._status = r.status, unquote( |
218 | ec928235 | Stavros Sachtouris | r.reason) |
219 | ec928235 | Stavros Sachtouris | recvlog.info( |
220 | ec928235 | Stavros Sachtouris | '%d %s\t[p: %s]' % (
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221 | ec928235 | Stavros Sachtouris | self.status_code, self.status, self)) |
222 | ec928235 | Stavros Sachtouris | self._headers = dict() |
223 | ec928235 | Stavros Sachtouris | for k, v in r.getheaders(): |
224 | ec928235 | Stavros Sachtouris | if (not self.LOG_TOKEN) and ( |
225 | ec928235 | Stavros Sachtouris | k.lower() == 'x-auth-token'):
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226 | ec928235 | Stavros Sachtouris | continue
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227 | ec928235 | Stavros Sachtouris | v = unquote(v) |
228 | ec928235 | Stavros Sachtouris | self._headers[k] = v
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229 | ec928235 | Stavros Sachtouris | recvlog.info(' %s: %s\t[p: %s]' % (k, v, self)) |
230 | ec928235 | Stavros Sachtouris | self._content = r.read()
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231 | ec928235 | Stavros Sachtouris | recvlog.info('data size: %s\t[p: %s]' % (
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232 | ec928235 | Stavros Sachtouris | len(self._content) if self._content else 0, |
233 | ec928235 | Stavros Sachtouris | self))
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234 | ec928235 | Stavros Sachtouris | if self.LOG_DATA and self._content: |
235 | ec928235 | Stavros Sachtouris | recvlog.info('%s\t[p: %s]' % (self._content, self)) |
236 | ec928235 | Stavros Sachtouris | break
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237 | ec928235 | Stavros Sachtouris | except Exception as err: |
238 | ec928235 | Stavros Sachtouris | if isinstance(err, HTTPException): |
239 | ec928235 | Stavros Sachtouris | if retries >= self.CONNECTION_TRY_LIMIT: |
240 | ec928235 | Stavros Sachtouris | raise ClientError(
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241 | ec928235 | Stavros Sachtouris | 'Connection to %s failed %s times (%s: %s )' % (
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242 | ec928235 | Stavros Sachtouris | self.request.url, retries, type(err), err)) |
243 | ec928235 | Stavros Sachtouris | else:
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244 | ec928235 | Stavros Sachtouris | from traceback import format_stack |
245 | ec928235 | Stavros Sachtouris | recvlog.debug( |
246 | ec928235 | Stavros Sachtouris | '\n'.join(['%s' % type(err)] + format_stack())) |
247 | ec928235 | Stavros Sachtouris | raise ClientError(
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248 | ec928235 | Stavros Sachtouris | 'Failed while http-connecting to %s (%s)' % (
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249 | ec928235 | Stavros Sachtouris | self.request.url,
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250 | ec928235 | Stavros Sachtouris | err)) |
251 | c2b5da2f | Stavros Sachtouris | |
252 | c2b5da2f | Stavros Sachtouris | @property
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253 | c2b5da2f | Stavros Sachtouris | def status_code(self): |
254 | c2b5da2f | Stavros Sachtouris | self._get_response()
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255 | c2b5da2f | Stavros Sachtouris | return self._status_code |
256 | c2b5da2f | Stavros Sachtouris | |
257 | c2b5da2f | Stavros Sachtouris | @property
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258 | c2b5da2f | Stavros Sachtouris | def status(self): |
259 | c2b5da2f | Stavros Sachtouris | self._get_response()
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260 | c2b5da2f | Stavros Sachtouris | return self._status |
261 | c2b5da2f | Stavros Sachtouris | |
262 | c2b5da2f | Stavros Sachtouris | @property
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263 | c2b5da2f | Stavros Sachtouris | def headers(self): |
264 | c2b5da2f | Stavros Sachtouris | self._get_response()
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265 | c2b5da2f | Stavros Sachtouris | return self._headers |
266 | c2b5da2f | Stavros Sachtouris | |
267 | c2b5da2f | Stavros Sachtouris | @property
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268 | c2b5da2f | Stavros Sachtouris | def content(self): |
269 | c2b5da2f | Stavros Sachtouris | self._get_response()
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270 | c2b5da2f | Stavros Sachtouris | return self._content |
271 | c2b5da2f | Stavros Sachtouris | |
272 | c2b5da2f | Stavros Sachtouris | @property
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273 | c2b5da2f | Stavros Sachtouris | def text(self): |
274 | c2b5da2f | Stavros Sachtouris | """
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275 | c2b5da2f | Stavros Sachtouris | :returns: (str) content
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276 | c2b5da2f | Stavros Sachtouris | """
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277 | c2b5da2f | Stavros Sachtouris | self._get_response()
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278 | c2b5da2f | Stavros Sachtouris | return '%s' % self._content |
279 | c2b5da2f | Stavros Sachtouris | |
280 | c2b5da2f | Stavros Sachtouris | @property
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281 | c2b5da2f | Stavros Sachtouris | def json(self): |
282 | c2b5da2f | Stavros Sachtouris | """
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283 | c2b5da2f | Stavros Sachtouris | :returns: (dict) squeezed from json-formated content
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284 | c2b5da2f | Stavros Sachtouris | """
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285 | c2b5da2f | Stavros Sachtouris | self._get_response()
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286 | c2b5da2f | Stavros Sachtouris | try:
|
287 | c2b5da2f | Stavros Sachtouris | return loads(self._content) |
288 | c2b5da2f | Stavros Sachtouris | except ValueError as err: |
289 | f8eea8ec | Stavros Sachtouris | raise ClientError('Response not formated in JSON - %s' % err) |
290 | c2b5da2f | Stavros Sachtouris | |
291 | c2b5da2f | Stavros Sachtouris | |
292 | 2b74ab4a | Stavros Sachtouris | class SilentEvent(Thread): |
293 | 34b88989 | Stavros Sachtouris | """Thread-run method(*args, **kwargs)"""
|
294 | 2b74ab4a | Stavros Sachtouris | def __init__(self, method, *args, **kwargs): |
295 | 2b74ab4a | Stavros Sachtouris | super(self.__class__, self).__init__() |
296 | 2b74ab4a | Stavros Sachtouris | self.method = method
|
297 | 2b74ab4a | Stavros Sachtouris | self.args = args
|
298 | 2b74ab4a | Stavros Sachtouris | self.kwargs = kwargs
|
299 | 2b74ab4a | Stavros Sachtouris | |
300 | 2b74ab4a | Stavros Sachtouris | @property
|
301 | 2b74ab4a | Stavros Sachtouris | def exception(self): |
302 | 2b74ab4a | Stavros Sachtouris | return getattr(self, '_exception', False) |
303 | 2b74ab4a | Stavros Sachtouris | |
304 | 2b74ab4a | Stavros Sachtouris | @property
|
305 | 2b74ab4a | Stavros Sachtouris | def value(self): |
306 | 2b74ab4a | Stavros Sachtouris | return getattr(self, '_value', None) |
307 | 2b74ab4a | Stavros Sachtouris | |
308 | 2b74ab4a | Stavros Sachtouris | def run(self): |
309 | 2b74ab4a | Stavros Sachtouris | try:
|
310 | 2b74ab4a | Stavros Sachtouris | self._value = self.method(*(self.args), **(self.kwargs)) |
311 | 2b74ab4a | Stavros Sachtouris | except Exception as e: |
312 | 7644c38e | Stavros Sachtouris | recvlog.debug('Thread %s got exception %s\n<%s %s' % (
|
313 | 7644c38e | Stavros Sachtouris | self,
|
314 | 7644c38e | Stavros Sachtouris | type(e),
|
315 | 7644c38e | Stavros Sachtouris | e.status if isinstance(e, ClientError) else '', |
316 | 7644c38e | Stavros Sachtouris | e)) |
317 | 2b74ab4a | Stavros Sachtouris | self._exception = e
|
318 | 2b74ab4a | Stavros Sachtouris | |
319 | 6069b53b | Stavros Sachtouris | |
320 | 6a0b1658 | Giorgos Verigakis | class Client(object): |
321 | cad39033 | Stavros Sachtouris | |
322 | 34b88989 | Stavros Sachtouris | MAX_THREADS = 7
|
323 | b773795c | Stavros Sachtouris | DATE_FORMATS = ['%a %b %d %H:%M:%S %Y', ]
|
324 | 5fdccdec | Stavros Sachtouris | LOG_TOKEN = False
|
325 | b773795c | Stavros Sachtouris | LOG_DATA = True
|
326 | ec928235 | Stavros Sachtouris | CONNECTION_RETRY_LIMIT = 0
|
327 | 34b88989 | Stavros Sachtouris | |
328 | c2b5da2f | Stavros Sachtouris | def __init__(self, base_url, token): |
329 | 528550d9 | Stavros Sachtouris | assert base_url, 'No base_url for client %s' % self |
330 | 6a0b1658 | Giorgos Verigakis | self.base_url = base_url
|
331 | 6c62a96d | Giorgos Verigakis | self.token = token
|
332 | c2b5da2f | Stavros Sachtouris | self.headers, self.params = dict(), dict() |
333 | 6c62a96d | Giorgos Verigakis | |
334 | cad39033 | Stavros Sachtouris | def _init_thread_limit(self, limit=1): |
335 | 9c6c3d69 | Stavros Sachtouris | assert isinstance(limit, int) and limit > 0, 'Thread limit not a +int' |
336 | cad39033 | Stavros Sachtouris | self._thread_limit = limit
|
337 | cad39033 | Stavros Sachtouris | self._elapsed_old = 0.0 |
338 | cad39033 | Stavros Sachtouris | self._elapsed_new = 0.0 |
339 | cad39033 | Stavros Sachtouris | |
340 | cad39033 | Stavros Sachtouris | def _watch_thread_limit(self, threadlist): |
341 | 9c6c3d69 | Stavros Sachtouris | self._thread_limit = getattr(self, '_thread_limit', 1) |
342 | 9c6c3d69 | Stavros Sachtouris | self._elapsed_new = getattr(self, '_elapsed_new', 0.0) |
343 | 9c6c3d69 | Stavros Sachtouris | self._elapsed_old = getattr(self, '_elapsed_old', 0.0) |
344 | 16c895db | Stavros Sachtouris | recvlog.debug('# running threads: %s' % len(threadlist)) |
345 | 9c6c3d69 | Stavros Sachtouris | if self._elapsed_old and self._elapsed_old >= self._elapsed_new and ( |
346 | 16b0afe6 | Stavros Sachtouris | self._thread_limit < self.MAX_THREADS): |
347 | 2005b18e | Stavros Sachtouris | self._thread_limit += 1 |
348 | 9c6c3d69 | Stavros Sachtouris | elif self._elapsed_old <= self._elapsed_new and self._thread_limit > 1: |
349 | cad39033 | Stavros Sachtouris | self._thread_limit -= 1 |
350 | cad39033 | Stavros Sachtouris | |
351 | cad39033 | Stavros Sachtouris | self._elapsed_old = self._elapsed_new |
352 | cad39033 | Stavros Sachtouris | if len(threadlist) >= self._thread_limit: |
353 | cad39033 | Stavros Sachtouris | self._elapsed_new = 0.0 |
354 | cad39033 | Stavros Sachtouris | for thread in threadlist: |
355 | cad39033 | Stavros Sachtouris | begin_time = time() |
356 | cad39033 | Stavros Sachtouris | thread.join() |
357 | cad39033 | Stavros Sachtouris | self._elapsed_new += time() - begin_time
|
358 | cad39033 | Stavros Sachtouris | self._elapsed_new = self._elapsed_new / len(threadlist) |
359 | cad39033 | Stavros Sachtouris | return []
|
360 | cad39033 | Stavros Sachtouris | return threadlist
|
361 | cad39033 | Stavros Sachtouris | |
362 | 6ad245d5 | Stavros Sachtouris | def _raise_for_status(self, r): |
363 | e9db8806 | Stavros Sachtouris | log.debug('raise err from [%s] of type[%s]' % (r, type(r))) |
364 | 5dde4c83 | Stavros Sachtouris | status_msg = getattr(r, 'status', None) or '' |
365 | d804de82 | Stavros Sachtouris | try:
|
366 | 7966ffb8 | Stavros Sachtouris | message = '%s %s\n' % (status_msg, r.text)
|
367 | d804de82 | Stavros Sachtouris | except:
|
368 | 7966ffb8 | Stavros Sachtouris | message = '%s %s\n' % (status_msg, r)
|
369 | 7966ffb8 | Stavros Sachtouris | status = getattr(r, 'status_code', getattr(r, 'status', 0)) |
370 | 7966ffb8 | Stavros Sachtouris | raise ClientError(message, status=status)
|
371 | 6a0b1658 | Giorgos Verigakis | |
372 | 4adfa919 | Stavros Sachtouris | def set_header(self, name, value, iff=True): |
373 | 3dabe5d2 | Stavros Sachtouris | """Set a header 'name':'value'"""
|
374 | 4adfa919 | Stavros Sachtouris | if value is not None and iff: |
375 | 82903313 | Stavros Sachtouris | self.headers[name] = unicode(value) |
376 | 2f749e6e | Stavros Sachtouris | |
377 | 2f749e6e | Stavros Sachtouris | def set_param(self, name, value=None, iff=True): |
378 | 2f749e6e | Stavros Sachtouris | if iff:
|
379 | 82903313 | Stavros Sachtouris | self.params[name] = unicode(value) |
380 | 2f749e6e | Stavros Sachtouris | |
381 | de73876b | Stavros Sachtouris | def request( |
382 | c2b5da2f | Stavros Sachtouris | self, method, path,
|
383 | c2b5da2f | Stavros Sachtouris | async_headers=dict(), async_params=dict(), |
384 | 24ff0a35 | Stavros Sachtouris | **kwargs): |
385 | 34b88989 | Stavros Sachtouris | """Commit an HTTP request to base_url/path
|
386 | 34b88989 | Stavros Sachtouris | Requests are commited to and performed by Request/ResponseManager
|
387 | 34b88989 | Stavros Sachtouris | These classes perform a lazy http request. Present method, by default,
|
388 | 34b88989 | Stavros Sachtouris | enforces them to perform the http call. Hint: call present method with
|
389 | 34b88989 | Stavros Sachtouris | success=None to get a non-performed ResponseManager object.
|
390 | 34b88989 | Stavros Sachtouris | """
|
391 | 6a6175c0 | Stavros Sachtouris | assert isinstance(method, str) or isinstance(method, unicode) |
392 | 6a6175c0 | Stavros Sachtouris | assert method
|
393 | 6a6175c0 | Stavros Sachtouris | assert isinstance(path, str) or isinstance(path, unicode) |
394 | d726b3d0 | Stavros Sachtouris | try:
|
395 | c2b5da2f | Stavros Sachtouris | headers = dict(self.headers) |
396 | c2b5da2f | Stavros Sachtouris | headers.update(async_headers) |
397 | c2b5da2f | Stavros Sachtouris | params = dict(self.params) |
398 | c2b5da2f | Stavros Sachtouris | params.update(async_params) |
399 | 2f749e6e | Stavros Sachtouris | success = kwargs.pop('success', 200) |
400 | 2f749e6e | Stavros Sachtouris | data = kwargs.pop('data', None) |
401 | c2b5da2f | Stavros Sachtouris | headers.setdefault('X-Auth-Token', self.token) |
402 | 2f749e6e | Stavros Sachtouris | if 'json' in kwargs: |
403 | de4f08ef | Stavros Sachtouris | data = dumps(kwargs.pop('json'))
|
404 | c2b5da2f | Stavros Sachtouris | headers.setdefault('Content-Type', 'application/json') |
405 | 2f749e6e | Stavros Sachtouris | if data:
|
406 | c2b5da2f | Stavros Sachtouris | headers.setdefault('Content-Length', '%s' % len(data)) |
407 | c2b5da2f | Stavros Sachtouris | |
408 | a863029c | Stavros Sachtouris | sendlog.debug('\n\nCMT %s@%s\t[%s]', method, self.base_url, self) |
409 | c2b5da2f | Stavros Sachtouris | req = RequestManager( |
410 | c2b5da2f | Stavros Sachtouris | method, self.base_url, path,
|
411 | c2b5da2f | Stavros Sachtouris | data=data, headers=headers, params=params) |
412 | 21871fb2 | Stavros Sachtouris | # req.log()
|
413 | ec928235 | Stavros Sachtouris | r = ResponseManager( |
414 | ec928235 | Stavros Sachtouris | req, connection_retry_limit=self.CONNECTION_RETRY_LIMIT)
|
415 | 5fdccdec | Stavros Sachtouris | r.LOG_TOKEN, r.LOG_DATA = self.LOG_TOKEN, self.LOG_DATA |
416 | 6a6175c0 | Stavros Sachtouris | finally:
|
417 | c2b5da2f | Stavros Sachtouris | self.headers = dict() |
418 | c2b5da2f | Stavros Sachtouris | self.params = dict() |
419 | 0238c167 | Stavros Sachtouris | |
420 | 0238c167 | Stavros Sachtouris | if success is not None: |
421 | a037fd61 | Stavros Sachtouris | # Success can either be an int or a collection
|
422 | 0238c167 | Stavros Sachtouris | success = (success,) if isinstance(success, int) else success |
423 | 0238c167 | Stavros Sachtouris | if r.status_code not in success: |
424 | 0238c167 | Stavros Sachtouris | self._raise_for_status(r)
|
425 | d726b3d0 | Stavros Sachtouris | return r
|
426 | a1c50326 | Giorgos Verigakis | |
427 | 6a0b1658 | Giorgos Verigakis | def delete(self, path, **kwargs): |
428 | 6a0b1658 | Giorgos Verigakis | return self.request('delete', path, **kwargs) |
429 | 6a0b1658 | Giorgos Verigakis | |
430 | 6a0b1658 | Giorgos Verigakis | def get(self, path, **kwargs): |
431 | 6a0b1658 | Giorgos Verigakis | return self.request('get', path, **kwargs) |
432 | 6a0b1658 | Giorgos Verigakis | |
433 | 6a0b1658 | Giorgos Verigakis | def head(self, path, **kwargs): |
434 | 6a0b1658 | Giorgos Verigakis | return self.request('head', path, **kwargs) |
435 | 6a0b1658 | Giorgos Verigakis | |
436 | 6a0b1658 | Giorgos Verigakis | def post(self, path, **kwargs): |
437 | 6a0b1658 | Giorgos Verigakis | return self.request('post', path, **kwargs) |
438 | 6a0b1658 | Giorgos Verigakis | |
439 | 6a0b1658 | Giorgos Verigakis | def put(self, path, **kwargs): |
440 | 6a0b1658 | Giorgos Verigakis | return self.request('put', path, **kwargs) |
441 | 6a0b1658 | Giorgos Verigakis | |
442 | 4adfa919 | Stavros Sachtouris | def copy(self, path, **kwargs): |
443 | 4adfa919 | Stavros Sachtouris | return self.request('copy', path, **kwargs) |
444 | 4adfa919 | Stavros Sachtouris | |
445 | 4adfa919 | Stavros Sachtouris | def move(self, path, **kwargs): |
446 | 4adfa919 | Stavros Sachtouris | return self.request('move', path, **kwargs) |