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-rw-r--r--src/rest/rest.c112
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diff --git a/src/rest/rest.c b/src/rest/rest.c
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1/*
2 This file is part of GNUnet
3 Copyright (C) 2010-2015 GNUnet e.V.
4
5 GNUnet is free software: you can redistribute it and/or modify it
6 under the terms of the GNU Affero General Public License as published
7 by the Free Software Foundation, either version 3 of the License,
8 or (at your option) any later version.
9
10 GNUnet is distributed in the hope that it will be useful, but
11 WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Affero General Public License for more details.
14
15 You should have received a copy of the GNU Affero General Public License
16 along with this program. If not, see <http://www.gnu.org/licenses/>.
17
18 SPDX-License-Identifier: AGPL3.0-or-later
19 */
20
21/**
22 * @file rest/rest.c
23 * @brief helper library to create JSON REST Objects and handle REST
24 * responses/requests.
25 * @author Martin Schanzenbach
26 */
27#include "platform.h"
28#include "gnunet_util_lib.h"
29#include "gnunet_rest_lib.h"
30#include "microhttpd.h"
31
32/**
33 * REST Utilities
34 */
35
36/**
37 * Check if namespace is in URL.
38 *
39 * @param url URL to check
40 * @param namespace namespace to check against
41 * @return GNUNET_YES if namespace matches
42 */
43int
44GNUNET_REST_namespace_match (const char *url, const char *namespace)
45{
46 return 0 == strncmp (namespace, url, strlen (namespace));
47}
48
49
50/**
51 * Create MHD response
52 *
53 * @param data result
54 * @return MHD response
55 */
56struct MHD_Response*
57GNUNET_REST_create_response (const char *data)
58{
59 struct MHD_Response *resp;
60 size_t len;
61
62 if (NULL == data)
63 {
64 len = 0;
65 data = "";
66 }
67 else
68 len = strlen (data);
69 resp = MHD_create_response_from_buffer (len,
70 (void *) data,
71 MHD_RESPMEM_MUST_COPY);
72 return resp;
73}
74
75
76int
77GNUNET_REST_handle_request (struct GNUNET_REST_RequestHandle *conn,
78 const struct GNUNET_REST_RequestHandler *handlers,
79 struct GNUNET_REST_RequestHandlerError *err,
80 void *cls)
81{
82 int count;
83 int i;
84 char *url;
85
86 count = 0;
87 while (NULL != handlers[count].method)
88 count++;
89
90 GNUNET_asprintf (&url, "%s", conn->url);
91 if (url[strlen (url) - 1] == '/')
92 url[strlen (url) - 1] = '\0';
93 for (i = 0; i < count; i++)
94 {
95 if (0 != strcasecmp (conn->method, handlers[i].method))
96 continue;
97 if (strlen (url) < strlen (handlers[i].namespace))
98 continue;
99 if (GNUNET_NO == GNUNET_REST_namespace_match (url, handlers[i].namespace))
100 continue;
101 // Match
102 handlers[i].proc (conn, (const char *) url, cls);
103 GNUNET_free (url);
104 return GNUNET_YES;
105 }
106 GNUNET_free (url);
107 err->error_code = MHD_HTTP_BAD_REQUEST;
108 return GNUNET_NO;
109}
110
111
112/* end of rest.c */