1<?php
2
3/*
4	[UCenter] (C)2001-2099 Comsenz Inc.
5	This is NOT a freeware, use is subject to license terms
6
7	$Id: db.class.php 1171 2014-11-03 03:33:47Z hypowang $
8*/
9
10
11class ucclient_db {
12	var $querynum = 0;
13	var $link;
14	var $histories;
15
16	var $dbhost;
17	var $dbuser;
18	var $dbpw;
19	var $dbcharset;
20	var $pconnect;
21	var $tablepre;
22	var $time;
23
24	var $goneaway = 5;
25
26	function connect($dbhost, $dbuser, $dbpw, $dbname = '', $dbcharset = '', $pconnect = 0, $tablepre='', $time = 0) {
27		$this->dbhost = $dbhost;
28		$this->dbuser = $dbuser;
29		$this->dbpw = $dbpw;
30		$this->dbname = $dbname;
31		$this->dbcharset = $dbcharset;
32		$this->pconnect = $pconnect;
33		$this->tablepre = $tablepre;
34		$this->time = $time;
35
36		if($pconnect) {
37			if(!$this->link = mysql_pconnect($dbhost, $dbuser, $dbpw)) {
38				$this->halt('Can not connect to MySQL server');
39			}
40		} else {
41			if(!$this->link = mysql_connect($dbhost, $dbuser, $dbpw)) {
42				$this->halt('Can not connect to MySQL server');
43			}
44		}
45
46		if($this->version() > '4.1') {
47			if($dbcharset) {
48				mysql_query("SET character_set_connection=".$dbcharset.", character_set_results=".$dbcharset.", character_set_client=binary", $this->link);
49			}
50
51			if($this->version() > '5.0.1') {
52				mysql_query("SET sql_mode=''", $this->link);
53			}
54		}
55
56		if($dbname) {
57			mysql_select_db($dbname, $this->link);
58		}
59
60	}
61
62	function fetch_array($query, $result_type = MYSQL_ASSOC) {
63		return mysql_fetch_array($query, $result_type);
64	}
65
66	function result_first($sql) {
67		$query = $this->query($sql);
68		return $this->result($query, 0);
69	}
70
71	function fetch_first($sql) {
72		$query = $this->query($sql);
73		return $this->fetch_array($query);
74	}
75
76	function fetch_all($sql, $id = '') {
77		$arr = array();
78		$query = $this->query($sql);
79		while($data = $this->fetch_array($query)) {
80			$id ? $arr[$data[$id]] = $data : $arr[] = $data;
81		}
82		return $arr;
83	}
84
85	function cache_gc() {
86		$this->query("DELETE FROM {$this->tablepre}sqlcaches WHERE expiry<$this->time");
87	}
88
89	function query($sql, $type = '', $cachetime = FALSE) {
90		$func = $type == 'UNBUFFERED' && @function_exists('mysql_unbuffered_query') ? 'mysql_unbuffered_query' : 'mysql_query';
91		if(!($query = $func($sql, $this->link)) && $type != 'SILENT') {
92			$this->halt('MySQL Query Error', $sql);
93		}
94		$this->querynum++;
95		$this->histories[] = $sql;
96		return $query;
97	}
98
99	function affected_rows() {
100		return mysql_affected_rows($this->link);
101	}
102
103	function error() {
104		return (($this->link) ? mysql_error($this->link) : mysql_error());
105	}
106
107	function errno() {
108		return intval(($this->link) ? mysql_errno($this->link) : mysql_errno());
109	}
110
111	function result($query, $row) {
112		$query = @mysql_result($query, $row);
113		return $query;
114	}
115
116	function num_rows($query) {
117		$query = mysql_num_rows($query);
118		return $query;
119	}
120
121	function num_fields($query) {
122		return mysql_num_fields($query);
123	}
124
125	function free_result($query) {
126		return mysql_free_result($query);
127	}
128
129	function insert_id() {
130		return ($id = mysql_insert_id($this->link)) >= 0 ? $id : $this->result($this->query("SELECT last_insert_id()"), 0);
131	}
132
133	function fetch_row($query) {
134		$query = mysql_fetch_row($query);
135		return $query;
136	}
137
138	function fetch_fields($query) {
139		return mysql_fetch_field($query);
140	}
141
142	function version() {
143		return mysql_get_server_info($this->link);
144	}
145
146	function escape_string($str) {
147		return mysql_escape_string($str);
148	}
149
150	function close() {
151		return mysql_close($this->link);
152	}
153
154	function halt($message = '', $sql = '') {
155		$error = mysql_error();
156		$errorno = mysql_errno();
157		if($errorno == 2006 && $this->goneaway-- > 0) {
158			$this->connect($this->dbhost, $this->dbuser, $this->dbpw, $this->dbname, $this->dbcharset, $this->pconnect, $this->tablepre, $this->time);
159			$this->query($sql);
160		} else {
161			$s = '';
162			if($message) {
163				$s = "<b>UCenter info:</b> $message<br />";
164			}
165			if($sql) {
166				$s .= '<b>SQL:</b>'.htmlspecialchars($sql).'<br />';
167			}
168			$s .= '<b>Error:</b>'.$error.'<br />';
169			$s .= '<b>Errno:</b>'.$errorno.'<br />';
170			$s = str_replace(UC_DBTABLEPRE, '[Table]', $s);
171			exit($s);
172		}
173	}
174}
175
176?>