1 /* mysqlConn.c - NeonServ v5.6
2 * Copyright (C) 2011-2012 Philipp Kreil (pk910)
4 * This program is free software: you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation, either version 3 of the License, or
7 * (at your option) any later version.
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
14 * You should have received a copy of the GNU General Public License
15 * along with this program. If not, see <http://www.gnu.org/licenses/>.
18 #include "mysqlConn.h"
19 #include "ConfigParser.h"
21 #define DATABASE_VERSION "20"
23 static void show_mysql_error();
25 struct mysql_conn_struct {
28 struct used_result *used_results;
29 struct escaped_string *escaped_strings;
30 struct mysql_conn_struct *next;
35 struct used_result *next;
38 struct escaped_string {
40 struct escaped_string *next;
43 struct mysql_conn_struct *get_mysql_conn_struct();
45 struct mysql_conn_struct *mysql_conns = NULL;
46 static int mysql_serverport;
47 static char *mysql_host, *mysql_user, *mysql_pass, *mysql_base;
50 static pthread_mutex_t synchronized;
53 static void check_mysql() {
54 MYSQL *mysql_conn = get_mysql_conn();
56 if((errid = mysql_ping(mysql_conn))) {
57 if(mysql_errno(mysql_conn) == CR_SERVER_GONE_ERROR) {
58 if(!mysql_real_connect(mysql_conn, mysql_host, mysql_user, mysql_pass, mysql_base, mysql_serverport, NULL, 0)) {
68 MYSQL_RES *mysql_use() {
69 struct mysql_conn_struct *mysql_conn = get_mysql_conn_struct();
70 MYSQL_RES *res = mysql_store_result(mysql_conn->mysql_conn);
71 struct used_result *result = malloc(sizeof(*result));
73 mysql_free_result(res);
77 result->next = mysql_conn->used_results;
78 mysql_conn->used_results = result;
83 struct mysql_conn_struct *mysql_conn = get_mysql_conn_struct();
84 if(!mysql_conn) return;
85 struct used_result *result, *next_result;
86 for(result = mysql_conn->used_results; result; result = next_result) {
87 next_result = result->next;
88 mysql_free_result(result->result);
91 mysql_conn->used_results = NULL;
92 struct escaped_string *escaped, *next_escaped;
93 for(escaped = mysql_conn->escaped_strings; escaped; escaped = next_escaped) {
94 next_escaped = escaped->next;
95 free(escaped->string);
98 mysql_conn->escaped_strings = NULL;
102 char *new_mysql_host = get_string_field("MySQL.host");
103 char *new_mysql_user = get_string_field("MySQL.user");
104 char *new_mysql_pass = get_string_field("MySQL.pass");
105 char *new_mysql_base = get_string_field("MySQL.base");
106 if(!(new_mysql_host && new_mysql_user && new_mysql_pass && new_mysql_base))
112 mysql_host = strdup(new_mysql_host);
116 mysql_user = strdup(new_mysql_user);
120 mysql_pass = strdup(new_mysql_pass);
124 mysql_base = strdup(new_mysql_base);
126 mysql_serverport = get_int_field("MySQL.port");
127 if(!mysql_serverport)
128 mysql_serverport = 3306;
133 THREAD_MUTEX_INIT(synchronized);
135 MYSQL *mysql_conn = get_mysql_conn();
137 //check database version...
139 if(!mysql_query(mysql_conn, "SELECT `database_version` FROM `version`")) {
140 MYSQL_RES *res = mysql_use();
142 if((row = mysql_fetch_row(res))) {
143 version = atoi(row[0]);
148 FILE *f = fopen("database.sql", "r");
149 mysql_set_server_option(mysql_conn, MYSQL_OPTION_MULTI_STATEMENTS_ON);
152 char query_buffer[8192];
153 int query_buffer_pos = 0;
154 while (fgets(line, sizeof(line), f)) {
155 query_buffer_pos += sprintf(query_buffer + query_buffer_pos, " %s", line);
156 if(line[(strlen(line) - 2)] == ';') {
157 if(mysql_query(mysql_conn, query_buffer))
159 query_buffer_pos = 0;
164 f = fopen("database.defaults.sql", "r");
167 char query_buffer[131072];
168 int query_buffer_pos = 0;
169 while (fgets(line, sizeof(line), f)) {
170 query_buffer_pos += sprintf(query_buffer + query_buffer_pos, " %s", line);
171 if(line[(strlen(line) - 2)] == ';') {
172 if(mysql_query(mysql_conn, query_buffer))
174 query_buffer_pos = 0;
180 MYSQL_RES *res = mysql_store_result(mysql_conn);
181 mysql_free_result(res);
182 } while(!mysql_next_result(mysql_conn));
183 mysql_set_server_option(mysql_conn, MYSQL_OPTION_MULTI_STATEMENTS_OFF);
184 mysql_query(mysql_conn, "INSERT INTO `version` (`database_version`) VALUES ('" DATABASE_VERSION "')");
186 else if(version < atoi(DATABASE_VERSION)) {
188 FILE *f = fopen("database.upgrade.sql", "r");
189 mysql_set_server_option(mysql_conn, MYSQL_OPTION_MULTI_STATEMENTS_ON);
192 char query_buffer[8192];
193 int query_buffer_pos = 0, use_querys = 0;
194 sprintf(query_buffer, "-- version: %d", version);
195 while (fgets(line, sizeof(line), f)) {
197 query_buffer_pos += sprintf(query_buffer + query_buffer_pos, " %s", line);
198 if(line[strlen(line) - 1] == ';') {
199 mysql_query(mysql_conn, query_buffer);
200 query_buffer_pos = 0;
202 } else if(!stricmplen(query_buffer, line, strlen(query_buffer))) {
206 if(query_buffer_pos) {
207 if(mysql_query(mysql_conn, query_buffer))
212 perror("database.sql missing!");
214 MYSQL_RES *res = mysql_store_result(mysql_conn);
215 mysql_free_result(res);
216 } while(!mysql_next_result(mysql_conn));
217 mysql_set_server_option(mysql_conn, MYSQL_OPTION_MULTI_STATEMENTS_OFF);
218 mysql_query(mysql_conn, "UPDATE `version` SET `database_version` = '" DATABASE_VERSION "'");
223 struct mysql_conn_struct *mysql_conn, *next;
224 for(mysql_conn = mysql_conns; mysql_conn; mysql_conn = next) {
225 next = mysql_conn->next;
226 mysql_close(mysql_conn->mysql_conn);
232 static void show_mysql_error() {
233 MYSQL *mysql_conn = get_mysql_conn();
235 putlog(LOGLEVEL_ERROR, "MySQL Error: %s\n", mysql_error(mysql_conn));
238 void printf_mysql_query(const char *text, ...) {
239 MYSQL *mysql_conn = get_mysql_conn();
241 char queryBuf[MYSQLMAXLEN];
244 va_start(arg_list, text);
245 pos = vsnprintf(queryBuf, MYSQLMAXLEN - 2, text, arg_list);
247 if (pos < 0 || pos > (MYSQLMAXLEN - 2)) pos = MYSQLMAXLEN - 2;
248 queryBuf[pos] = '\0';
249 putlog(LOGLEVEL_MYSQL, "MySQL: %s\n", queryBuf);
250 if(mysql_query(mysql_conn, queryBuf)) {
252 if(mysql_query(mysql_conn, queryBuf)) {
258 void printf_long_mysql_query(int len, const char *text, ...) {
259 MYSQL *mysql_conn = get_mysql_conn();
264 va_start(arg_list, text);
265 pos = vsnprintf(queryBuf, len - 2, text, arg_list);
267 if (pos < 0 || pos > (len - 2)) pos = len - 2;
268 queryBuf[pos] = '\0';
269 putlog(LOGLEVEL_MYSQL, "MySQL: %s\n", queryBuf);
270 if(mysql_query(mysql_conn, queryBuf)) {
272 if(mysql_query(mysql_conn, queryBuf)) {
278 char* escape_string(const char *str) {
279 struct mysql_conn_struct *mysql_conn = get_mysql_conn_struct();
280 struct escaped_string *escapedstr = malloc(sizeof(*escapedstr));
284 char escaped[strlen(str)*2+1];
285 mysql_real_escape_string(mysql_conn->mysql_conn, escaped, str, strlen(str));
286 escapedstr->string = strdup(escaped);
287 escapedstr->next = mysql_conn->escaped_strings;
288 mysql_conn->escaped_strings = escapedstr;
289 return escapedstr->string;
292 struct mysql_conn_struct *get_mysql_conn_struct() {
293 SYNCHRONIZE(synchronized);
294 struct mysql_conn_struct *mysql_conn;
297 tid = (unsigned int) pthread_self_tid();
301 for(mysql_conn = mysql_conns; mysql_conn; mysql_conn = mysql_conn->next) {
302 if(mysql_conn->tid == tid) {
303 DESYNCHRONIZE(synchronized);
307 mysql_conn = malloc(sizeof(*mysql_conn));
308 mysql_conn->mysql_conn = mysql_init(NULL);
309 mysql_conn->tid = tid;
310 mysql_conn->used_results = NULL;
311 mysql_conn->escaped_strings = NULL;
312 mysql_conn->next = mysql_conns;
313 mysql_conns = mysql_conn;
314 if (!mysql_real_connect(mysql_conn->mysql_conn, mysql_host, mysql_user, mysql_pass, mysql_base, mysql_serverport, NULL, 0)) {
318 DESYNCHRONIZE(synchronized);
322 MYSQL *get_mysql_conn() {
323 struct mysql_conn_struct *mysql_conn = get_mysql_conn_struct();
324 return mysql_conn->mysql_conn;