Annotation of mqtt/src/pubmqtt.c, revision 1.1.2.8
1.1.2.1 misho 1: #include "global.h"
2:
3:
1.1.2.2 misho 4: /*
5: * mqtt_db_log() Log database connection message
6: *
7: * @fmt = format string
8: * @... = argument list
9: * return: none
10: */
11: static void
12: mqtt_rtlm_log(const char *fmt, ...)
13: {
14: va_list lst;
15:
16: va_start(lst, fmt);
17: vsyslog(LOG_ERR, fmt, lst);
18: va_end(lst);
19: }
1.1.2.3 misho 20: #define MQTT_RTLM_LOG(_sql) (assert((_sql)), mqtt_rtlm_log("Error:: SQL #%d - %s", \
1.1.2.2 misho 21: sqlite3_errcode((_sql)), sqlite3_errmsg((_sql))))
22:
23:
24: /*
25: * mqtt_rtlm_open() Open database connection
26: *
1.1.2.3 misho 27: * @cfg = config filename
1.1.2.2 misho 28: * return: NULL error or SQL handle
29: */
30: sqlite3 *
31: mqtt_rtlm_open(sl_config *cfg)
32: {
33: sqlite3 *sql = NULL;
34: const char *str = NULL;
35:
36: if (!cfg)
37: return NULL;
38:
39: str = (const char*) cfg_GetAttribute(cfg, CFG("mqtt_pub"), CFG("name"));
40: if (!str) {
41: mqtt_rtlm_log("Error:: Unknown database name ...\n");
42: return NULL;
43: }
44:
45: if (sqlite3_open_v2(str, &sql, SQLITE_OPEN_READWRITE, NULL)) {
1.1.2.3 misho 46: MQTT_RTLM_LOG(sql);
1.1.2.2 misho 47: sqlite3_close(sql);
48: return NULL;
49: }
50:
51: return sql;
52: }
53:
54: /*
55: * mqtt_rtlm_close() Close database connection
56: *
57: * @sql = SQL handle
58: * return: none
59: */
60: void
61: mqtt_rtlm_close(sqlite3 *sql)
62: {
63: sqlite3_close(sql);
64: }
1.1.2.4 misho 65:
66: /*
67: * mqtt_rtlm_init_session() Create session
68: *
69: * @cfg = loaded config
70: * @sql = SQL handle
71: * @user = username
72: * @host = hostname
73: * @port = port
74: * return: -1 error, 0 session already appears or >0 row changed
75: */
76: int
77: mqtt_rtlm_init_session(sl_config *cfg, sqlite3 *sql, const char *user, const char *host, u_short port)
78: {
79: int ret = 0;
80: char *str, szStmt[BUFSIZ] = { 0 };
81: sqlite3_stmt *stmt;
82:
83: if (!cfg || !sql)
84: return -1;
85:
86: str = (char*) cfg_GetAttribute(cfg, CFG("mqtt_pub"), CFG("tbl_online"));
87: if (!str) {
1.1.2.8 ! misho 88: mqtt_rtlm_log("Error:: not found online table name");
1.1.2.4 misho 89: return -1;
90: }
91: snprintf(szStmt, sizeof szStmt, "INSERT INTO %s (Username, RemoteHost, RemotePort) "
92: "VALUES ('%s', '%s', %d);", str, user, host, port);
93:
94: if (sqlite3_prepare_v2(sql, szStmt, strlen(szStmt), &stmt, NULL)) {
95: MQTT_RTLM_LOG(sql);
96: return -1;
97: }
98: if ((ret = sqlite3_step(stmt)) == SQLITE_DONE)
99: ret = sqlite3_changes(sql);
100: else {
101: if (ret > SQLITE_OK && ret < SQLITE_ROW)
102: MQTT_RTLM_LOG(sql);
103: ret = 0;
104: }
105: sqlite3_finalize(stmt);
106:
107: return ret;
108: }
1.1.2.5 misho 109:
110: /*
111: * mqtt_rtlm_fini_session() Delete session(s)
112: *
113: * @cfg = loaded config
114: * @sql = SQL handle
115: * @user = username
116: * @host = hostname
117: * return: -1 error, 0 session already appears or >0 row changed
118: */
119: int
120: mqtt_rtlm_fini_session(sl_config *cfg, sqlite3 *sql, const char *user, const char *host)
121: {
122: int ret = 0;
123: char *str, szStmt[BUFSIZ] = { 0 };
124: sqlite3_stmt *stmt;
125:
126: if (!cfg || !sql)
127: return -1;
128:
129: str = (char*) cfg_GetAttribute(cfg, CFG("mqtt_pub"), CFG("tbl_online"));
130: if (!str) {
1.1.2.8 ! misho 131: mqtt_rtlm_log("Error:: not found online table name");
1.1.2.5 misho 132: return -1;
133: }
134: snprintf(szStmt, sizeof szStmt, "DELETE FROM %s WHERE Username = '%s' AND RemoteHost LIKE '%s';",
135: str, user, host);
136:
137: if (sqlite3_prepare_v2(sql, szStmt, strlen(szStmt), &stmt, NULL)) {
138: MQTT_RTLM_LOG(sql);
139: return -1;
140: }
141: if ((ret = sqlite3_step(stmt)) == SQLITE_DONE)
142: ret = sqlite3_changes(sql);
143: else {
144: if (ret > SQLITE_OK && ret < SQLITE_ROW)
145: MQTT_RTLM_LOG(sql);
146: ret = 0;
147: }
148: sqlite3_finalize(stmt);
149:
150: return ret;
151: }
1.1.2.6 misho 152:
153: /*
154: * mqtt_rtlm_chk_session() Check session(s)
155: *
156: * @cfg = loaded config
157: * @sql = SQL handle
158: * @user = username
159: * @host = hostname
160: * return: -1 error, 0 not logged or >0 logged found rows
161: */
162: int
163: mqtt_rtlm_chk_session(sl_config *cfg, sqlite3 *sql, const char *user, const char *host)
164: {
165: int ret = 0;
166: char *str, szStmt[BUFSIZ] = { 0 };
167: sqlite3_stmt *stmt;
168:
169: if (!cfg || !sql)
170: return -1;
171:
172: str = (char*) cfg_GetAttribute(cfg, CFG("mqtt_pub"), CFG("tbl_online"));
173: if (!str) {
1.1.2.8 ! misho 174: mqtt_rtlm_log("Error:: not found online table name");
1.1.2.6 misho 175: return -1;
176: }
177: snprintf(szStmt, sizeof szStmt, "SELECT RemoteHost, RemotePort FROM %s WHERE "
178: "Username = '%s' AND RemoteHost LIKE '%s';", str, user, host);
179:
180: if (sqlite3_prepare_v2(sql, szStmt, strlen(szStmt), &stmt, NULL)) {
181: MQTT_RTLM_LOG(sql);
182: return -1;
183: }
1.1.2.7 misho 184: if (sqlite3_step(stmt) == SQLITE_ROW)
185: ret = sqlite3_changes(sql);
186: else
187: ret = 0;
1.1.2.6 misho 188: sqlite3_finalize(stmt);
189:
190: return ret;
191: }
1.1.2.8 ! misho 192:
! 193: /*
! 194: * mqtt_rtlm_write_topic() Publish topic
! 195: *
! 196: * @cfg = loaded config
! 197: * @sql = SQL handle
! 198: * @topic = topic
! 199: * @txt = text
! 200: * @user = username
! 201: * @host = hostname
! 202: * @retain = !=0 retain message to database
! 203: * return: -1 error, 0 no publish or >0 published ok
! 204: */
! 205: int
! 206: mqtt_rtlm_write_topic(sl_config *cfg, sqlite3 *sql, const char *topic, const char *txt,
! 207: const char *user, const char *host, char retain)
! 208: {
! 209: int ret = 0;
! 210: char *str, szStmt[BUFSIZ] = { 0 };
! 211: sqlite3_stmt *stmt;
! 212:
! 213: if (!cfg || !sql || !topic)
! 214: return -1;
! 215:
! 216: str = (char*) cfg_GetAttribute(cfg, CFG("mqtt_pub"), CFG("tbl_topics"));
! 217: if (!str) {
! 218: mqtt_rtlm_log("Error:: not found topics table name");
! 219: return -1;
! 220: }
! 221: snprintf(szStmt, sizeof szStmt, "INSERT INTO %s (Retain, Topic, Value, PubUser, PubDate, PubHost) "
! 222: "VALUES (%d, '%s', '%s', '%s', datetime('now', 'localtime'), '%s');", str,
! 223: retain, topic, txt, user, host);
! 224:
! 225: if (sqlite3_prepare_v2(sql, szStmt, strlen(szStmt), &stmt, NULL)) {
! 226: MQTT_RTLM_LOG(sql);
! 227: return -1;
! 228: }
! 229: if ((ret = sqlite3_step(stmt)) == SQLITE_DONE)
! 230: ret = sqlite3_changes(sql);
! 231: else {
! 232: if (ret > SQLITE_OK && ret < SQLITE_ROW)
! 233: MQTT_RTLM_LOG(sql);
! 234: ret = 0;
! 235: }
! 236: sqlite3_finalize(stmt);
! 237:
! 238: return ret;
! 239: }
! 240:
! 241: /*
! 242: * mqtt_rtlm_delete_topic() Delete topic
! 243: *
! 244: * @cfg = loaded config
! 245: * @sql = SQL handle
! 246: * @topic = topic
! 247: * @user = username
! 248: * @host = hostname
! 249: * @retain = -1 no matter
! 250: * return: -1 error, 0 no changes or >0 deleted rows
! 251: */
! 252: int
! 253: mqtt_rtlm_delete_topic(sl_config *cfg, sqlite3 *sql, const char *topic,
! 254: const char *user, const char *host, char retain)
! 255: {
! 256: int ret = 0;
! 257: char *str, *rtn, szStmt[BUFSIZ] = { 0 };
! 258: sqlite3_stmt *stmt;
! 259:
! 260: if (!cfg || !sql || !topic)
! 261: return -1;
! 262:
! 263: str = (char*) cfg_GetAttribute(cfg, CFG("mqtt_pub"), CFG("tbl_topics"));
! 264: if (!str) {
! 265: mqtt_rtlm_log("Error:: not found topics table name");
! 266: return -1;
! 267: }
! 268: switch (retain) {
! 269: case -1:
! 270: rtn = "";
! 271: break;
! 272: case 0:
! 273: rtn = "AND Retain = 0";
! 274: break;
! 275: default:
! 276: rtn = "AND Retain != 0";
! 277: break;
! 278: }
! 279: snprintf(szStmt, sizeof szStmt, "DELETE FROM %s WHERE Topic LIKE '%s' AND "
! 280: "PubUser LIKE '%s' AND PubHost LIKE '%s' %s;", str,
! 281: topic, user, host, rtn);
! 282:
! 283: if (sqlite3_prepare_v2(sql, szStmt, strlen(szStmt), &stmt, NULL)) {
! 284: MQTT_RTLM_LOG(sql);
! 285: return -1;
! 286: }
! 287: if ((ret = sqlite3_step(stmt)) == SQLITE_DONE)
! 288: ret = sqlite3_changes(sql);
! 289: else {
! 290: if (ret > SQLITE_OK && ret < SQLITE_ROW)
! 291: MQTT_RTLM_LOG(sql);
! 292: ret = 0;
! 293: }
! 294: sqlite3_finalize(stmt);
! 295:
! 296: return ret;
! 297: }
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