mec_http_server.py 14.8 KB
Newer Older
Yann Garcia's avatar
Yann Garcia committed
1
2
3
4
5
6
7
8
9
10
import http.server
import json
from mec_database import mec_database

# This class will handles any incoming request from the browser
class myHandler(http.server.BaseHTTPRequestHandler):
    __db__ = mec_database()

    # Handler for the GET requests
    def do_GET(self):
Yann Garcia's avatar
Yann Garcia committed
11
        print('>>> do_GET: ', self.path)
Yann Garcia's avatar
Yann Garcia committed
12
13
14
15
16
17
18
        self.protocol_version = self.request_version
        # Check HTTP end_headers
        if self.__check_http_headers__() == False:
            resp = "{\"problemDetails\": {\t\"type\": \"Bad Request\",\t\"title\": \"N/A\",\t\"status\": 400,\t\"detail\": \"Wrong headers\",\t\"instance\": \"N/A\"}}"
            self.send_response(400, 'Bad Request')
            self.send_header('Host', self.headers.get('Host'))
            self.send_header('Authorization', self.headers.get('Authorization'))
Yann Garcia's avatar
Yann Garcia committed
19
            self.send_header('Content-Type', 'application/problem+json')
Yann Garcia's avatar
Yann Garcia committed
20
21
22
23
24
25
26
            l = len(resp)
            self.send_header('Content-Length', str(l))
            self.end_headers()
            self.wfile.write(bytes(resp, 'utf-8'))
            return

        resp, content_type = self.__process__()
Yann Garcia's avatar
Yann Garcia committed
27
        print('do_GET: resp= ', resp, ', Content_Type= ', content_type)
Yann Garcia's avatar
Yann Garcia committed
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
        if (resp == None):
            self.send_response(404, 'Not Found')
            self.send_header('Host', self.headers.get('Host'))
            self.send_header('Authorization', self.headers.get('Authorization'))
            self.send_header('Content-Type', content_type)
            self.send_header('Content-Length', '0')
            self.end_headers()
        else:
            if resp.find('Not Found') != -1:
                self.send_response(404, 'Not Found')
            elif resp.find('Forbidden') != -1:
                self.send_response(403, 'Forbidden')
            elif resp.find('Bad Request') != -1:
                self.send_response(400, 'Bad Request')
            else:
                self.send_response(200, 'OK')
            self.send_header('Host', self.headers.get('Host'))
            self.send_header('Authorization', self.headers.get('Authorization'))
            self.send_header('Content-Type', content_type)
            l = len(resp)
            self.send_header('Content-Length', str(l))
            self.end_headers()
            self.wfile.write(bytes(resp, 'utf-8'))
    # End of do_GET

    # Handler for the POST requests
    def do_POST(self):
        print(">>> do_POST: ", self.path)
        self.protocol_version = self.request_version
        # Check HTTP end_headers
        if self.__check_http_headers__() == False:
            resp = "{\"problemDetails\": {\t\"type\": \"Bad Request\",\t\"title\": \"N/A\",\t\"status\": 400,\t\"detail\": \"Wrong headers\",\t\"instance\": \"N/A\"}}"
            self.protocol_version = self.request_version
            self.send_response(400, 'Bad Request')
            self.send_header('Host', self.headers.get('Host'))
            self.send_header('Authorization', self.headers.get('Authorization'))
Yann Garcia's avatar
Yann Garcia committed
64
            self.send_header('Content-Type', 'application/problem+json')
Yann Garcia's avatar
Yann Garcia committed
65
66
67
68
69
70
71
            l = len(resp)
            self.send_header('Content-Length', str(l))
            self.end_headers()
            self.wfile.write(bytes(resp, 'utf-8'))
            return

        resp, content_type = self.__process__()
Yann Garcia's avatar
Yann Garcia committed
72
        print('do_POST: resp= ', resp, ', Content_Type= ', content_type)
Yann Garcia's avatar
Yann Garcia committed
73
74
75
76
77
78
79
80
81
82
83
84
85
86
        if (resp == None):
            self.send_response(404, 'Not Found')
            self.send_header('Host', self.headers.get('Host'))
            self.send_header('Authorization', self.headers.get('Authorization'))
            self.send_header('Content-Type', content_type)
            self.send_header('Content-Length', '0')
            self.end_headers()
        else:
            if resp.find('Not Found') != -1:
                self.send_response(404, 'Not Found')
            elif resp.find('Forbidden') != -1:
                self.send_response(403, 'Forbidden')
            elif resp.find('Bad Request') != -1:
                self.send_response(400, 'Bad Request')
Yann Garcia's avatar
Yann Garcia committed
87
88
            elif resp.find('userTrackingSubscription') != -1:
                self.send_response(201, 'Created')
Yann Garcia's avatar
Yann Garcia committed
89
90
91
92
93
94
95
96
97
98
99
100
101
102
            else:
                self.send_response(200, 'OK')
            self.send_header('Host', self.headers.get('Host'))
            self.send_header('Content-Type', content_type)
            self.send_header('Authorization', self.headers.get('Authorization'))
            self.send_header('Content-Type', content_type)
            l = len(resp)
            self.send_header('Content-Length', str(l))
            self.end_headers()
            self.wfile.write(bytes(resp, 'utf-8'))
    # End of do_POST

    # Check HTTP headers
    def __check_http_headers__(self):
Yann Garcia's avatar
Yann Garcia committed
103
        print('>>> __check_http_headers__')
Yann Garcia's avatar
Yann Garcia committed
104
105
106
        result = True
        host = self.headers.get('Host')
        if host == None:
Yann Garcia's avatar
Yann Garcia committed
107
            print("__check_http_headers__: Failed to parse Host header")
Yann Garcia's avatar
Yann Garcia committed
108
109
            result = False
        content_type = self.headers.get('Content-Type')
Yann Garcia's avatar
Yann Garcia committed
110
        if content_type != 'application/json':
Yann Garcia's avatar
Yann Garcia committed
111
112
113
114
115
116
117
118
119
120
121
122
            print("__check_http_headers__: Failed to parse 'Content-Type' header")
            result = False
        auth = self.headers.get('Authorization')
        if auth == None:
            print("__check_http_headers__: Failed to parse 'Authorization' header")
            result = False
        return result
    # End of __check_http_headers__

    # Process the request
    def __process__(self):
        s = self.path.split('/')
Yann Garcia's avatar
Yann Garcia committed
123
        print('>>> __process__: ', s)
Yann Garcia's avatar
Yann Garcia committed
124
        if s[1] != 'exampleAPI':
Yann Garcia's avatar
Yann Garcia committed
125
            return None, 'application/json'
Yann Garcia's avatar
Yann Garcia committed
126
127
128
129
130
131
132
133
134
135
        # TODO Check HTTP headers
        if s[2] == 'location' and ((s[3] == 'v1') or (s[3] == 'v2')):
            return self.__process__location__api__(s)
        elif s[2] == 'ui' and ((s[3] == 'v1') or (s[3] == 'v2')):
            return self.__process__ue__identity__api__(s)
        elif s[2] == 'rni' and ((s[3] == 'v1') or (s[3] == 'v2')):
            return self.__process__rnis__api__(s)
        elif s[2] == 'bwm' and ((s[3] == 'v1') or (s[3] == 'v2')):
            return self.__process__bwm__api__(s)
        else:
Yann Garcia's avatar
Yann Garcia committed
136
            return None, 'application/json'
Yann Garcia's avatar
Yann Garcia committed
137
138
139
140
141
142
    # End of __process__

    # Process the LocationAPI request
    def __process__location__api__(self, p_split):
        print (">>> __process__location__api__: ", p_split)
        resp = None
Yann Garcia's avatar
Yann Garcia committed
143
        content_type = 'application/json'
Yann Garcia's avatar
Yann Garcia committed
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
        if p_split[4].startswith('users'): # E.g. users?zoneId=zone01
            s = p_split[4].split('?')
            if s.__len__() == 1: # Users list requested
                resp = self.__db__.getSubscriberList(self.path)
            elif s.__len__() == 2: # E.g. zoneId=zone01
                s = s[1].split('=')
                if s[0] == 'zoneId': # Users list into a specific zoneId requested
                    resp = self.__db__.getSubscriberFromZoneId(s[1], self.path)
                elif s[0] == 'address':
                    resp = self.__db__.getSubscriberFromAddress(s[1])
        elif p_split[4] == 'zones':
            if p_split.__len__() == 5:
                s = p_split[4].split('?')
                print("__process__location__api__: ", s)
                if s.__len__() == 1: # A list requested
                    if s[0] == 'zones':
                        resp = self.__db__.getZoneList(self.path)
                    else:
                        resp = "{\"Unsupported zone request\"}"
                elif s.__len__() == 2: # E.g. ?
                    resp = "{\"Unsupported zone request\"}"
                else:
                    resp = "{\"Unsupported " + p_split[4] + " request\"}"
            elif p_split.__len__() == 7:
                if p_split[6] == 'accessPoints':
                    resp = self.__db__.getAccessPointList(p_split[5], self.path)
                else:
                    resp = "{\"Unsupported " + p_split[5] + " request\"}"
            else:
                resp = "{\"Unsupported " + p_split[4] + " request\"}"
Yann Garcia's avatar
Yann Garcia committed
174
175
176
177
178
179
180
181
182
183
184
185
186
187
        elif p_split[4] == 'subscriptions':
            if p_split.__len__() == 6:
                # Extract the body if any
                body = None
                content_len = int(self.headers.get('Content-Length'))
                if (content_len != 0):
                    body = self.rfile.read(content_len)
                    json_msg = self.__decode__json__body__(body)
                    if (json_msg == None):
                        resp = "{\"problemDetails\": {\t\"type\": \"Body processing not supported\",\t\"title\": \"UElocationAPI\",\t\"status\": 400,\t\"detail\": \"Unknown request\",\t\"instance\": \"string\"}}"
                    else:
                        resp = self.__db__.registerSubscription(json_msg, self.path)
            elif p_split.__len__() == 7:
                resp = self.__db__.unregisterSubscription(p_split[6])
Yann Garcia's avatar
Yann Garcia committed
188
189
190
191
192
193
194
195
196
197
198
        else:
            resp = "{\"Unsupported " + p_split[4] + " request\"}"

        print ("<<< __process__location__api__: ", resp, ", ", content_type)
        return resp, content_type
    # End of __process__location__api__

    # Process the ue_identityAPI request
    def __process__ue__identity__api__(self, p_split):
        print (">>> __process__ue__identity__api__: ", p_split)
        resp = None
Yann Garcia's avatar
Yann Garcia committed
199
        content_type = 'application/json'
Yann Garcia's avatar
Yann Garcia committed
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
        if p_split[4] == 'appInst98': # Used for unknown application, e.g. TC_MEC_PLAT_UETAG_003_BI
            resp = "{\"problemDetails\": {\t\"type\": \"Not Authorized\",\t\"title\": \"UEidentityAPI\",\t\"status\": 403,\t\"detail\": \"Forbidden\",\t\"instance\": \"AppInst98\"}}"
        else:
            if p_split[5].startswith('ue_identity_tag_info'): # E.g. ue_identity_tag_info?ueIdentityTag=UeTagA
                s = p_split[5].split('?')
                if s[0] != 'ue_identity_tag_info':
                    resp = "{\"problemDetails\": {\t\"type\": \"Bad Request\",\t\"title\": \"UEidentityAPI\",\t\"status\": 400,\t\"detail\": \"Wrong parameters\",\t\"instance\": \"string\"}}"
                elif s.__len__() == 1: # ue_identity_tag_info, POST
                    # Register/Unregister operation
                    body = None
                    # Extract the body if any
                    content_len = int(self.headers.get('Content-Length'))
                    if (content_len != 0):
                        body = self.rfile.read(content_len)
                        json_msg = self.__decode__json__body__(body)
                        if (json_msg == None):
                            resp = "{\"problemDetails\": {\t\"type\": \"Body processing not supported\",\t\"title\": \"UEidentityAPI\",\t\"status\": 400,\t\"detail\": \"Unknown request\",\t\"instance\": \"string\"}}"
                        else:
                            resp = self.__db__.registerUEidentity(p_split[4], json_msg)
                elif s.__len__() == 2: # E.g. ueIdentityTag=UeTagA
                    s = s[1].split('=')
                    if s[0] == 'ueIdentityTag': # Users list into a specific zoneId requested
                        resp = self.__db__.getUEidentityTagInfo(p_split[4], s[1])
                        if (resp == None):
                            resp = "{\"problemDetails\": {\t\"type\": \"Not Found\",\t\"title\": \"UEidentityAPI\",\t\"status\": 404,\t\"detail\": \"Wrong parameters\",\t\"instance\": \"string\"}}"
Yann Garcia's avatar
Yann Garcia committed
225
                            content_type = 'application/problem+json'
Yann Garcia's avatar
Yann Garcia committed
226
227
        if (resp == None):
            resp = "{\"problemDetails\": {\t\"type\": \"Bad Request\",\t\"title\": \"UEidentityAPI\",\t\"status\": 400,\t\"detail\": \"Wrong parameters\",\t\"instance\": \"string\"}}"
Yann Garcia's avatar
Yann Garcia committed
228
            content_type = 'application/problem+json'
Yann Garcia's avatar
Yann Garcia committed
229
        elif resp.find('problemDetails') != -1:
Yann Garcia's avatar
Yann Garcia committed
230
            content_type = 'application/problem+json'
Yann Garcia's avatar
Yann Garcia committed
231
232
233
234
235
236
237

        print ("<<< __process__ue__identity__api__: ", resp, ", ", content_type)
        return resp, content_type
    # End of __process__ue__identity__api__

    # Process the RnisAPI request
    def __process__rnis__api__(self, p_split):
Yann Garcia's avatar
Yann Garcia committed
238
        print ('>>> __process__rnis__api__: ', p_split)
Yann Garcia's avatar
Yann Garcia committed
239
        resp = None
Yann Garcia's avatar
Yann Garcia committed
240
        content_type = 'application/json'
Yann Garcia's avatar
Yann Garcia committed
241
242
243
244
245
246
        if p_split[4].startswith('subscriptions'):
            if p_split.__len__() == 6:
                if p_split[5] == '':
                    resp = self.__db__.getSubscriptionLinkList(self.path)
        if (resp == None):
            resp = "{\"problemDetails\": {\t\"type\": \"Not supported\",\t\"title\": \"RnisAPI\",\t\"status\": 400,\t\"detail\": \"Wrong parameters\",\t\"instance\": \"string\"}}"
Yann Garcia's avatar
Yann Garcia committed
247
            content_type = 'application/problem+json'
Yann Garcia's avatar
Yann Garcia committed
248
249
250
251
252
253
254
255
256

        print ("<<< __process__rnis__api__: ", resp, ", ", content_type)
        return resp, content_type
    # End of __process__rnis__api__

    # Process the BwManagementAPI request
    def __process__bwm__api__(self, p_split):
        print (">>> __process__bwm__api__: ", p_split)
        resp = None
Yann Garcia's avatar
Yann Garcia committed
257
        content_type = 'application/json'
Yann Garcia's avatar
Yann Garcia committed
258
259
260
261
262
263
264
265
266
267
268
269
        if p_split[4].startswith('bw_allocations'): # E.g. bw_allocation?app_instance_id=InstApp01
            s = p_split[4].split('?')
            if s.__len__() == 1: # ue_identity_tag_info, POST
                # Register/Unregister operation
                body = None
                # Extract the body if any
                content_len = int(self.headers.get('Content-Length'))
                if (content_len != 0):
                    body = self.rfile.read(content_len)
                    json_msg = self.__decode__json__body__(body)
                    if (json_msg == None):
                        resp = "{\"problemDetails\": {\t\"type\": \"Body processing not supported\",\t\"title\": \"BwManagementAPI\",\t\"status\": 400,\t\"detail\": \"Unknown request\",\t\"instance\": \"string\"}}"
Yann Garcia's avatar
Yann Garcia committed
270
                        content_type = 'application/problem+json'
Yann Garcia's avatar
Yann Garcia committed
271
272
273
274
275
276
277
278
                    else:
                        resp = self.__db__.bwAllocation(json_msg)
            elif s.__len__() == 2: # E.g. app_instance_id=InstApp01
                s = s[1].split('=')
                if s[0] == 'app_instance_id':
                    resp = self.__db__.getBwAllocationAppInst(p_split[4], s[1])
        if (resp == None):
            resp = "{\"problemDetails\": {\t\"type\": \"Not supported\",\t\"title\": \"BwManagementAPI\",\t\"status\": 400,\t\"detail\": \"Wrong parameters\",\t\"instance\": \"string\"}}"
Yann Garcia's avatar
Yann Garcia committed
279
            content_type = 'application/problem+json'
Yann Garcia's avatar
Yann Garcia committed
280
281
282
283
284
285
286

        print ("<<< __process__bwm__api__: ", resp, ", ", content_type)
        return resp, content_type
    # End of __process__bwm__api__

    # Decode a Json HTTP body message
    def __decode__json__body__(self, p_body):
Yann Garcia's avatar
Yann Garcia committed
287
        print(">>> __decode__json__body__: ", p_body)
Yann Garcia's avatar
Yann Garcia committed
288
289
        json_msg = json.loads(p_body)
        print("__decode__json__body__: ", type(json_msg))
Yann Garcia's avatar
Yann Garcia committed
290
291
292
293
294
295
        print("__decode__json__body__: ", json_msg.keys())
        if ("ueIdentityTags" in json_msg.keys()) == True:
            return json_msg.get("ueIdentityTags")[0]
        elif ("userTrackingSubscription" in json_msg.keys()) == True:
            return json_msg.get("userTrackingSubscription")
        return None
Yann Garcia's avatar
Yann Garcia committed
296
297
298
    # End of __decode__json__body__

# End of class SimpleHTTPRequestHandler