1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
|
<?php
/**
*
* MySQL database class
*
* For debugging, insert 'dbg(1);' anywhere in the program flow.
* dbg(0); will turn it off. Logging is performed at LOGGER_DATA level.
* When logging, all binary info is converted to text and html entities are escaped so that
* the debugging stream is safe to view within both terminals and web pages.
*
*/
if(! class_exists('dba')) {
class dba {
private $debug = 0;
private $db;
public $connected = false;
function __construct($server,$user,$pass,$db,$install = false) {
$this->db = @new mysqli($server,$user,$pass,$db);
if(! mysqli_connect_errno()) {
$this->connected = true;
}
else {
$this->db = null;
if(! $install)
system_unavailable();
}
}
public function getdb() {
return $this->db;
}
public function q($sql) {
if((! $this->db) || (! $this->connected))
return false;
$result = @$this->db->query($sql);
if($this->debug) {
$mesg = '';
if($this->db->errno)
logger('dba: ' . $this->db->error);
if($result === false)
$mesg = 'false';
elseif($result === true)
$mesg = 'true';
else
$mesg = $result->num_rows . ' results' . EOL;
$str = 'SQL = ' . printable($sql) . EOL . 'SQL returned ' . $mesg . EOL;
logger('dba: ' . $str );
}
else {
/*
* If dbfail.out exists, we will write any failed calls directly to it,
* regardless of any logging that may or may nor be in effect.
* These usually indicate SQL syntax errors that need to be resolved.
*/
if($result === false) {
logger('dba: ' . printable($sql) . ' returned false.');
if(file_exists('dbfail.out'))
file_put_contents('dbfail.out', printable($sql) . ' returned false' . "\n", FILE_APPEND);
}
}
if(($result === true) || ($result === false))
return $result;
$r = array();
if($result->num_rows) {
while($x = $result->fetch_array(MYSQL_ASSOC))
$r[] = $x;
$result->free_result();
}
if($this->debug)
logger('dba: ' . printable(print_r($r, true)), LOGGER_DATA);
return($r);
}
public function dbg($dbg) {
$this->debug = $dbg;
}
public function escape($str) {
if($this->db && $this->connected)
return @$this->db->real_escape_string($str);
}
function __destruct() {
@$this->db->close();
}
}}
if(! function_exists('printable')) {
function printable($s) {
$s = preg_replace("~([\x01-\x08\x0E-\x0F\x10-\x1F\x7F-\xFF])~",".", $s);
$s = str_replace("\x00",'.',$s);
if(x($_SERVER,'SERVER_NAME'))
$s = escape_tags($s);
return $s;
}}
// Procedural functions
if(! function_exists('dbg')) {
function dbg($state) {
global $db;
if($db)
$db->dbg($state);
}}
if(! function_exists('dbesc')) {
function dbesc($str) {
global $db;
if($db && $db->connected)
return($db->escape($str));
else
return(str_replace("'","\\'",$str));
}}
// Function: q($sql,$args);
// Description: execute SQL query with printf style args.
// Example: $r = q("SELECT * FROM `%s` WHERE `uid` = %d",
// 'user', 1);
if(! function_exists('q')) {
function q($sql) {
global $db;
$args = func_get_args();
unset($args[0]);
if($db && $db->connected) {
$ret = $db->q(vsprintf($sql,$args));
return $ret;
}
/**
*
* This will happen occasionally trying to store the
* session data after abnormal program termination
*
*/
logger('dba: no database: ' . print_r($args,true));
return false;
}}
/**
*
* Raw db query, no arguments
*
*/
if(! function_exists('dbq')) {
function dbq($sql) {
global $db;
if($db && $db->connected)
$ret = $db->q($sql);
else
$ret = false;
return $ret;
}}
// Caller is responsible for ensuring that any integer arguments to
// dbesc_array are actually integers and not malformed strings containing
// SQL injection vectors. All integer array elements should be specifically
// cast to int to avoid trouble.
if(! function_exists('dbesc_array_cb')) {
function dbesc_array_cb(&$item, $key) {
if(is_string($item))
$item = dbesc($item);
}}
if(! function_exists('dbesc_array')) {
function dbesc_array(&$arr) {
if(is_array($arr) && count($arr)) {
array_walk($arr,'dbesc_array_cb');
}
}}
|
