1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
|
import json
import types
from functools import wraps
from flask import request, g, session, Response
from flask.ext.restful import Resource, reqparse
from pyaggr3g470r.models import User
from pyaggr3g470r.lib.exceptions import PyAggError
def authenticate(func):
"""
Decorator for the authentication to the web services.
"""
@wraps(func)
def wrapper(*args, **kwargs):
if not getattr(func, 'authenticated', True):
return func(*args, **kwargs)
# authentication based on the session (already logged on the site)
if 'email' in session or g.user.is_authenticated():
return func(*args, **kwargs)
# authentication via HTTP only
auth = request.authorization
try:
email = auth.username
user = User.query.filter(User.email == email).first()
if user and user.check_password(auth.password) and user.activation_key == "":
g.user = user
return func(*args, **kwargs)
except AttributeError:
pass
return Response('<Authentication required>', 401,
{'WWWAuthenticate':'Basic realm="Login Required"'})
return wrapper
def default_handler(obj):
"""JSON handler for default query formatting"""
if hasattr(obj, 'isoformat'):
return obj.isoformat()
if hasattr(obj, 'dump'):
return obj.dump()
if isinstance(obj, (set, frozenset, types.GeneratorType)):
return list(obj)
raise TypeError("Object of type %s with value of %r "
"is not JSON serializable" % (type(obj), obj))
def to_response(func):
def wrapper(*args, **kwargs):
try:
result = func(*args, **kwargs)
except PyAggError as error:
response = Response(json.dumps(result[0], default=default_handler))
response.status_code = error.status_code
return response
status_code = 200
if isinstance(result, tuple):
result, status_code = result
response = Response(json.dumps(result, default=default_handler),
status=status_code)
return response
return wrapper
class PyAggAbstractResource(Resource):
method_decorators = [authenticate, to_response]
def __init__(self, *args, **kwargs):
self.controller = self.controller_cls(g.user.id)
super(PyAggAbstractResource, self).__init__(*args, **kwargs)
def reqparse_args(self, strict=False, default=True):
"""
strict: bool
if True will throw 400 error if args are defined and not in request
default: bool
if True, won't return defaults
"""
parser = reqparse.RequestParser()
for attr_name, attrs in self.attrs.items():
if not default and attr_name not in request.args:
continue
parser.add_argument(attr_name, location='json', **attrs)
return parser.parse_args(strict=strict)
class PyAggResourceNew(PyAggAbstractResource):
def post(self):
return self.controller.create(**self.reqparse_args()), 201
class PyAggResourceExisting(PyAggAbstractResource):
def get(self, obj_id=None):
return self.controller.get(id=obj_id).dump()
def put(self, obj_id=None):
args = self.reqparse_args()
new_values = {key: args[key] for key in
set(args).intersection(self.attrs)}
self.controller.update(obj_id, **new_values)
def delete(self, obj_id=None):
self.controller.delete(obj_id)
return None, 204
class PyAggResourceMulti(PyAggAbstractResource):
def get(self):
filters = self.reqparse_args(default=False)
return [res.dump() for res in self.controller.read(**filters).all()]
def post(self):
status = 201
results = []
args = [] # FIXME
for arg in args:
try:
results.append(self.controller.create(**arg).id)
except Exception as error:
status = 206
results.append(error)
return results, status
def put(self):
status = 200
results = []
args = {} # FIXME
for obj_id, attrs in args.items():
try:
new_values = {key: args[key] for key in
set(attrs).intersection(self.editable_attrs)}
self.controller.update(obj_id, **new_values)
results.append('ok')
except Exception as error:
status = 206
results.append(error)
return results, status
def delete(self):
status = 204
results = []
obj_ids = [] # FIXME extract some real ids
for obj_id in obj_ids:
try:
self.controller.delete(obj_id)
results.append('ok')
except Exception as error:
status = 206
results.append(error)
return results, status
|
