renamed proxy to proxy_mode in stroke_msg.h
[strongswan.git] / src / manager / storage.c
1 /*
2 * Copyright (C) 2007 Martin Willi
3 * Hochschule fuer Technik Rapperswil
4 *
5 * This program is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License as published by the
7 * Free Software Foundation; either version 2 of the License, or (at your
8 * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
9 *
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
12 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
13 * for more details.
14 *
15 * $Id$
16 */
17
18 #include "storage.h"
19
20 #include <library.h>
21 #include <crypto/hashers/hasher.h>
22
23
24 typedef struct private_storage_t private_storage_t;
25
26 /**
27 * private data of storage
28 */
29 struct private_storage_t {
30
31 /**
32 * public functions
33 */
34 storage_t public;
35
36 /**
37 * database connection
38 */
39 database_t *db;
40 };
41
42 /**
43 * Implementation of storage_t.login.
44 */
45 static int login(private_storage_t *this, char *username, char *password)
46 {
47 hasher_t *hasher;
48 chunk_t hash, data, hex_str;
49 size_t username_len, password_len;
50 int uid = 0;
51 enumerator_t *enumerator;
52
53 /* hash = SHA1( username | password ) */
54 hasher = lib->crypto->create_hasher(lib->crypto, HASH_SHA1);
55 if (hasher == NULL)
56 {
57 return 0;
58 }
59 hash = chunk_alloca(hasher->get_hash_size(hasher));
60 username_len = strlen(username);
61 password_len = strlen(password);
62 data = chunk_alloca(username_len + password_len);
63 memcpy(data.ptr, username, username_len);
64 memcpy(data.ptr + username_len, password, password_len);
65 hasher->get_hash(hasher, data, hash.ptr);
66 hasher->destroy(hasher);
67 hex_str = chunk_to_hex(hash, NULL, FALSE);
68
69 enumerator = this->db->query(this->db,
70 "SELECT oid FROM users WHERE username = ? AND password = ?;",
71 DB_TEXT, username, DB_TEXT, hex_str.ptr,
72 DB_INT);
73 if (enumerator)
74 {
75 enumerator->enumerate(enumerator, &uid);
76 enumerator->destroy(enumerator);
77 }
78 free(hex_str.ptr);
79 return uid;
80 }
81
82 /**
83 * Implementation of storage_t.create_gateway_enumerator.
84 */
85 static enumerator_t* create_gateway_enumerator(private_storage_t *this, int user)
86 {
87 enumerator_t *enumerator;
88
89 enumerator = this->db->query(this->db,
90 "SELECT gateways.oid AS gid, name, port, address FROM "
91 "gateways, user_gateway AS ug ON gid = ug.gateway WHERE ug.user = ?;",
92 DB_INT, user,
93 DB_INT, DB_TEXT, DB_INT, DB_TEXT);
94 if (!enumerator)
95 {
96 enumerator = enumerator_create_empty();
97 }
98 return enumerator;
99 }
100
101 /**
102 * Implementation of storage_t.destroy
103 */
104 static void destroy(private_storage_t *this)
105 {
106 this->db->destroy(this->db);
107 free(this);
108 }
109
110 /*
111 * see header file
112 */
113 storage_t *storage_create(char *uri)
114 {
115 private_storage_t *this = malloc_thing(private_storage_t);
116
117 this->public.login = (int(*)(storage_t*, char *username, char *password))login;
118 this->public.create_gateway_enumerator = (enumerator_t*(*)(storage_t*,int))create_gateway_enumerator;
119 this->public.destroy = (void(*)(storage_t*))destroy;
120
121 this->db = lib->db->create(lib->db, uri);
122 if (this->db == NULL)
123 {
124 free(this);
125 return NULL;
126 }
127 return &this->public;
128 }
129