summaryrefslogtreecommitdiffstats
path: root/src/test/resources/http-cache/third_party_proxy.py
blob: 72ea4958703bf658c2c7ecbb26fc6bf682feee07 (plain)
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
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
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
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
#!/usr/bin/env python2
###
# ============LICENSE_START=======================================================
# ONAP CLAMP
# ================================================================================
# Copyright (C) 2018 AT&T Intellectual Property. All rights
#                             reserved.
# ================================================================================
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
# ============LICENSE_END============================================
# ===================================================================
# ECOMP is a trademark and service mark of AT&T Intellectual Property.
###

import json
import requests
import os
import sys
import SimpleHTTPServer
import SocketServer
import argparse
import tempfile
import signal
import uuid
import shutil

parser = argparse.ArgumentParser(description="3rd party Cache & Replay")
parser.add_argument("--username", "-u", type=str, help="Set the username for contacting 3rd party - only used for GET")
parser.add_argument("--password", "-p", type=str, help="Set the password for contacting 3rd party - only used for GET")
parser.add_argument("--root",     "-r", default=tempfile.mkdtemp, type=str, help="Root folder for the proxy cache")
parser.add_argument("--proxy"         , type=str, help="Url of the  Act as a proxy. If not set, this script only uses the cache and will return a 404 if files aren't found")
parser.add_argument("--port",     "-P", type=int, default="8081", help="Port on which the proxy should listen to")
parser.add_argument("--verbose",  "-v", type=bool, help="Print more information in case of error")
options = parser.parse_args()


PORT = options.port
HOST = options.proxy
AUTH = (options.username, options.password)
HEADERS = {'X-ECOMP-InstanceID':'CLAMP'}
CACHE_ROOT = options.root

def signal_handler(signal_sent, frame):
    global httpd
    if signal_sent == signal.SIGINT:
        print('Got Ctrl-C (SIGINT)')
        httpd.socket.close()
        httpd.shutdown()
        httpd.server_close()

class Proxy(SimpleHTTPServer.SimpleHTTPRequestHandler):

    def print_headers(self):
        for header,value in self.headers.items():
            print("header: %s : %s" % (header, value))

    def check_credentials(self):
        pass

    def _send_content(self, header_file, content_file):
        self.send_response(200)
        with open(header_file, 'rb') as f:
            headers = json.load(f)
            for key,value in headers.items():
                if key in ('Transfer-Encoding',):
                    continue
                self.send_header(key, value)
            self.end_headers()
        with open(content_file,'rb') as f:
            fc = f.read()
            self.wfile.write(fc)

    def _write_cache(self,cached_file, header_file, content_file, response):
        os.makedirs(cached_file, True)
        with open(content_file, 'w') as f:
            f.write(response.raw.read())
        with open(header_file, 'w') as f:
            json.dump(dict(response.raw.headers), f)
    # Entry point of the code
    def do_GET(self):
        print("\n\n\nGot a GET request for %s " % self.path)

        self.print_headers()
        self.check_credentials()

        cached_file = '%s/%s' % (CACHE_ROOT, self.path,)
        print("Cached file name before escaping : %s" % cached_file)
        cached_file = cached_file.replace('<','&#60;').replace('>','&#62;').replace('?','&#63;').replace('*','&#42;').replace('\\','&#42;').replace(':','&#58;').replace('|','&#124;')
        print("Cached file name after escaping (used for cache storage) : %s" % cached_file)
        cached_file_content = "%s/.file" % (cached_file,)
        cached_file_header = "%s/.header" % (cached_file,)

        _file_available = os.path.exists(cached_file_content)

        if not _file_available:
            print("Request for data currently not present in cache: %s" % (cached_file,))

            if self.path.startswith("/dcae-service-types?asdcResourceId="):
                print "self.path start with /dcae-service-types?asdcResourceId=, generating response json..."
                uuidGenerated = str(uuid.uuid4())
                typeId = "typeId-" + uuidGenerated
                typeName = "typeName-" + uuidGenerated
                print "typeId generated: " + typeName + " and typeName: "+ typeId
                jsonGenerated = "{\"totalCount\":1, \"items\":[{\"typeId\":\"" + typeId + "\", \"typeName\":\"" + typeName +"\"}]}"
                print "jsonGenerated: " + jsonGenerated

                os.makedirs(cached_file, True)
                with open(cached_file_header, 'w') as f:
                    f.write("{\"Content-Length\": \"144\", \"Content-Type\": \"application/json\"}")
                with open(cached_file_content, 'w') as f:
                    f.write(jsonGenerated)
            else:
                if not HOST:
                    self.send_response(404)
                    return "404 Not found"

                url = '%s%s' % (HOST, self.path)
                response = requests.get(url, auth=AUTH, headers=HEADERS, stream=True)

                if response.status_code == 200:
                    self._write_cache(cached_file, cached_file_header, cached_file_content, response)
                else:
                    print('Error when requesting file :')
                    print('Requested url : %s' % (url,))
                    print('Status code : %s' % (response.status_code,))
                    print('Content : %s' % (response.content,))
                    self.send_response(response.status_code)
                    return response.content
        else:
            print("Request for data currently present in cache: %s" % (cached_file,))

        self._send_content(cached_file_header, cached_file_content)

        if self.path.startswith("/dcae-service-types?asdcResourceId="):
            print "DCAE case deleting folder created " + cached_file
            shutil.rmtree(cached_file, ignore_errors=False, onerror=None)
        else:
            print "NOT in DCAE case deleting folder created " + cached_file

    def do_POST(self):
        print("\n\n\nGot a POST for %s" % self.path)
        self.check_credentials()
        self.data_string = self.rfile.read(int(self.headers['Content-Length']))
        print("data-string:\n %s" % self.data_string)
        print("self.headers:\n %s" % self.headers)

        cached_file = '%s/%s' % (CACHE_ROOT, self.path,)
        print("Cached file name before escaping : %s" % cached_file)
        cached_file = cached_file.replace('<','&#60;').replace('>','&#62;').replace('?','&#63;').replace('*','&#42;').replace('\\','&#42;').replace(':','&#58;').replace('|','&#124;')
        print("Cached file name after escaping (used for cache storage) : %s" % cached_file)
        cached_file_content = "%s/.file" % (cached_file,)
        cached_file_header = "%s/.header" % (cached_file,)

        _file_available = os.path.exists(cached_file_content)

        if not _file_available:
            if self.path.startswith("/sdc/v1/catalog/services/"):
                print "self.path start with /sdc/v1/catalog/services/, generating response json..."
                jsondata = json.loads(self.data_string)
                jsonGenerated = "{\"artifactName\":\"" + jsondata['artifactName'] + "\",\"artifactType\":\"" + jsondata['artifactType'] + "\",\"artifactURL\":\"" + self.path + "\",\"artifactDescription\":\"" + jsondata['description'] + "\",\"artifactChecksum\":\"ZjJlMjVmMWE2M2M1OTM2MDZlODlmNTVmZmYzNjViYzM=\",\"artifactUUID\":\"" + str(uuid.uuid4()) + "\",\"artifactVersion\":\"1\"}"
                print "jsonGenerated: " + jsonGenerated

                os.makedirs(cached_file, True)
                with open(cached_file_header, 'w') as f:
                    f.write("{\"Content-Length\": \"" + str(len(jsonGenerated)) + "\", \"Content-Type\": \"application/json\"}")
                with open(cached_file_content, 'w') as f:
                    f.write(jsonGenerated)
            else:
                if not HOST:
                    self.send_response(404)
                    return "404 Not found"

                print("Request for data currently not present in cache: %s" % (cached_file,))

                url = '%s%s' % (HOST, self.path)
                print("url: %s" % (url,))
                response = requests.post(url, data=self.data_string, headers=self.headers, stream=True)

                if response.status_code == 200:
                    self._write_cache(cached_file, cached_file_header, cached_file_content, response)
                else:
                    print('Error when requesting file :')
                    print('Requested url : %s' % (url,))
                    print('Status code : %s' % (response.status_code,))
                    print('Content : %s' % (response.content,))
                    self.send_response(response.status_code)
                    return response.content
        else:
            print("Request for data present in cache: %s" % (cached_file,))

        self._send_content(cached_file_header, cached_file_content)

    def do_PUT(self):
        print("\n\n\nGot a PUT for %s " % self.path)
        self.check_credentials()
        self.data_string = self.rfile.read(int(self.headers['Content-Length']))
        print("data-string:\n %s" % self.data_string)
        print("self.headers:\n %s" % self.headers)

        cached_file = '%s/%s' % (CACHE_ROOT, self.path,)
        print("Cached file name before escaping : %s" % cached_file)
        cached_file = cached_file.replace('<','&#60;').replace('>','&#62;').replace('?','&#63;').replace('*','&#42;').replace('\\','&#42;').replace(':','&#58;').replace('|','&#124;')
        print("Cached file name after escaping (used for cache storage) : %s" % cached_file)
        cached_file_content = "%s/.file" % (cached_file,)
        cached_file_header = "%s/.header" % (cached_file,)

        _file_available = os.path.exists(cached_file_content)
        if not _file_available and not HOST:
            print("No file corresponding in cache and no HOST specified: %s" % HOST)
            self.send_response(404)
            return "404 Not found"

        if not _file_available:
            print("Request for data currently not present in cache: %s" % (cached_file,))

            url = '%s%s' % (HOST, self.path)
            print("url: %s" % (url,))
            response = requests.put(url, data=self.data_string, headers=self.headers, stream=True)

            if response.status_code == 200:
                self._write_cache(cached_file, cached_file_header, cached_file_content, response)
            else:
                print('Error when requesting file :')
                print('Requested url : %s' % (url,))
                print('Status code : %s' % (response.status_code,))
                print('Content : %s' % (response.content,))
                self.send_response(response.status_code)
                return response.content
        else:
            print("Request for data present in cache: %s" % (cached_file,))

        self._send_content(cached_file_header, cached_file_content)



# Main code that start the HTTP server
httpd = SocketServer.ForkingTCPServer(('', PORT), Proxy)
httpd.allow_reuse_address = True
print "Listening on port "+ str(PORT) + " and caching in " + CACHE_ROOT + "(Press Ctrl+C to stop HTTPD Caching script)"
signal.signal(signal.SIGINT, signal_handler)
httpd.serve_forever()