Statistics
| Branch: | Tag: | Revision:

root / kamaki / clients / __init__.py @ f3a722d4

History | View | Annotate | Download (4.7 kB)

1
# Copyright 2011-2012 GRNET S.A. All rights reserved.
2
#
3
# Redistribution and use in source and binary forms, with or
4
# without modification, are permitted provided that the following
5
# conditions are met:
6
#
7
#   1. Redistributions of source code must retain the above
8
#      copyright notice, this list of conditions and the following
9
#      disclaimer.
10
#
11
#   2. Redistributions in binary form must reproduce the above
12
#      copyright notice, this list of conditions and the following
13
#      disclaimer in the documentation and/or other materials
14
#      provided with the distribution.
15
#
16
# THIS SOFTWARE IS PROVIDED BY GRNET S.A. ``AS IS'' AND ANY EXPRESS
17
# OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
18
# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
19
# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GRNET S.A OR
20
# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
21
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
22
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
23
# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
24
# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
26
# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
27
# POSSIBILITY OF SUCH DAMAGE.
28
#
29
# The views and conclusions contained in the software and
30
# documentation are those of the authors and should not be
31
# interpreted as representing official policies, either expressed
32
# or implied, of GRNET S.A.
33

    
34
import json
35
import logging
36

    
37
import requests
38

    
39
from requests.auth import AuthBase
40

    
41

    
42
sendlog = logging.getLogger('clients.send')
43
recvlog = logging.getLogger('clients.recv')
44

    
45

    
46
# Add a convenience status property to the responses
47
def _status(self):
48
    return requests.status_codes._codes[self.status_code][0].upper()
49
requests.Response.status = property(_status)
50

    
51

    
52
class ClientError(Exception):
53
    def __init__(self, message, status=0, details=''):
54
        super(ClientError, self).__init__(message, status, details)
55
        self.message = message
56
        self.status = status
57
        self.details = details
58

    
59

    
60
class Client(object):
61
    def __init__(self, base_url, token):
62
        self.base_url = base_url
63
        self.token = token
64

    
65
    def raise_for_status(self, r):
66
        message = "%d %s" % (r.status_code, r.status)
67
        details = r.text
68
        raise ClientError(message, r.status_code, details)
69

    
70
    def request(self, method, path, **kwargs):
71
        raw = kwargs.pop('raw', False)
72
        success = kwargs.pop('success', 200)
73
        directory = kwargs.pop('directory', False)
74

    
75
        data = kwargs.pop('data', None)
76
        headers = kwargs.pop('headers', {})
77
        headers.setdefault('X-Auth-Token', self.token)
78

    
79
        if directory:
80
            headers.setdefault('Content-Type', 'application/directory')
81
            headers.setdefault('Content-length', '0')
82
        else:
83
            if 'json' in kwargs:
84
                data = json.dumps(kwargs.pop('json'))
85
                headers.setdefault('Content-Type', 'application/json')
86
            if data:
87
                headers.setdefault('Content-Length', str(len(data)))
88

    
89
        url = self.base_url + path
90
        kwargs.setdefault('verify', False)  # Disable certificate verification
91
        r = requests.request(method, url, headers=headers, data=data, **kwargs)
92

    
93
        req = r.request
94
        sendlog.info('%s %s', req.method, req.url)
95
        for key, val in req.headers.items():
96
            sendlog.info('%s: %s', key, val)
97
        sendlog.info('')
98
        if req.data:
99
            sendlog.info('%s', req.data)
100

    
101
        recvlog.info('%d %s', r.status_code, r.status)
102
        for key, val in r.headers.items():
103
            recvlog.info('%s: %s', key, val)
104
        recvlog.info('')
105
        if not raw and r.content:
106
            recvlog.debug(r.content)
107

    
108
        if success is not None:
109
            # Success can either be an in or a collection
110
            success = (success,) if isinstance(success, int) else success
111
            if r.status_code not in success:
112
                self.raise_for_status(r)
113

    
114
        return r
115

    
116
    def delete(self, path, **kwargs):
117
        return self.request('delete', path, **kwargs)
118

    
119
    def get(self, path, **kwargs):
120
        return self.request('get', path, **kwargs)
121

    
122
    def head(self, path, **kwargs):
123
        return self.request('head', path, **kwargs)
124

    
125
    def post(self, path, **kwargs):
126
        return self.request('post', path, **kwargs)
127

    
128
    def put(self, path, **kwargs):
129
        return self.request('put', path, **kwargs)
130

    
131

    
132
from .compute import ComputeClient as compute
133
from .image import ImageClient as image
134
from .storage import StorageClient as storage
135
from .cyclades import CycladesClient as cyclades
136
from .pithos import PithosClient as pithos
137
from .astakos import AstakosClient as astakos