| 1 | <?php
|
|---|
| 2 | /*
|
|---|
| 3 | * Project: NodeMap2.0
|
|---|
| 4 | * File: LogHandler.class.php
|
|---|
| 5 | * Purpose: Handling our log file containing log entries generated by the application
|
|---|
| 6 | */
|
|---|
| 7 |
|
|---|
| 8 | /*
|
|---|
| 9 | * Log levels:
|
|---|
| 10 | * SYSLOG_EMERG System is unusable
|
|---|
| 11 | * SYSLOG_ALERT Action must be taken immediately
|
|---|
| 12 | * SYSLOG_CRIT Critical conditions
|
|---|
| 13 | * SYSLOG_ERR Error conditions
|
|---|
| 14 | * SYSLOG_WARNING Warning conditions
|
|---|
| 15 | * SYSLOG_NOTICE Normal, but significant, condition
|
|---|
| 16 | * SYSLOG_INFO Informational message
|
|---|
| 17 | * SYSLOG_DEBUG Debug-level message
|
|---|
| 18 | */
|
|---|
| 19 |
|
|---|
| 20 | define('SYSLOG_NONE', 0);
|
|---|
| 21 | define('SYSLOG_EMERG', 1);
|
|---|
| 22 | define('SYSLOG_ALERT', 2);
|
|---|
| 23 | define('SYSLOG_CRIT', 3);
|
|---|
| 24 | define('SYSLOG_ERR', 4);
|
|---|
| 25 | define('SYSLOG_WARNING', 5);
|
|---|
| 26 | define('SYSLOG_NOTICE', 6);
|
|---|
| 27 | define('SYSLOG_INFO', 7);
|
|---|
| 28 | define('SYSLOG_DEBUG', 8);
|
|---|
| 29 |
|
|---|
| 30 | /*
|
|---|
| 31 | * Actions on log levels
|
|---|
| 32 | */
|
|---|
| 33 | define('LOG_LEVEL_ECHO', SYSLOG_DEBUG);
|
|---|
| 34 | define('LOG_LEVEL_WRITE', SYSLOG_DEBUG);
|
|---|
| 35 | define('LOG_LEVEL_MAIL', SYSLOG_DEBUG);
|
|---|
| 36 |
|
|---|
| 37 | class LogHandler {
|
|---|
| 38 | /*
|
|---|
| 39 | * Function: __construct (constructor)
|
|---|
| 40 | * Parameters: -
|
|---|
| 41 | * Function: Creating a LogHandler object
|
|---|
| 42 | */
|
|---|
| 43 | public function __construct() {
|
|---|
| 44 | }
|
|---|
| 45 |
|
|---|
| 46 | /*
|
|---|
| 47 | * Function: logEntry
|
|---|
| 48 | * Parameters: int $logno, string $logstr, string $logfile, int $logline
|
|---|
| 49 | * Function: Handling with log entries, decides what to do with it
|
|---|
| 50 | */
|
|---|
| 51 | public function logEntry($logno, $logstr, $logfile, $logline) {
|
|---|
| 52 | $errorString = 'SysLog ';
|
|---|
| 53 |
|
|---|
| 54 | switch ($logno) {
|
|---|
| 55 | case SYSLOG_EMERG:
|
|---|
| 56 | $errorString = 'Emergency';
|
|---|
| 57 | break;
|
|---|
| 58 | case SYSLOG_ALERT:
|
|---|
| 59 | $errorString = 'Alert';
|
|---|
| 60 | break;
|
|---|
| 61 | case SYSLOG_CRIT:
|
|---|
| 62 | $errorString = 'Critical';
|
|---|
| 63 | break;
|
|---|
| 64 | case SYSLOG_ERR:
|
|---|
| 65 | $errorString = 'Error';
|
|---|
| 66 | break;
|
|---|
| 67 | case SYSLOG_WARNING:
|
|---|
| 68 | $errorString = 'Warning';
|
|---|
| 69 | break;
|
|---|
| 70 | case SYSLOG_NOTICE:
|
|---|
| 71 | $errorString = 'Notice';
|
|---|
| 72 | break;
|
|---|
| 73 | case SYSLOG_INFO:
|
|---|
| 74 | $errorString = 'Information';
|
|---|
| 75 | break;
|
|---|
| 76 | case SYSLOG_DEBUG:
|
|---|
| 77 | $errorString = 'Debug';
|
|---|
| 78 | break;
|
|---|
| 79 | default:
|
|---|
| 80 | $errorString = 'SYSLOG_DEFAULT';
|
|---|
| 81 | break;
|
|---|
| 82 | }
|
|---|
| 83 |
|
|---|
| 84 | $time = date( "H:i.s m/d/y" );
|
|---|
| 85 | $errorString .= ' (' . $logno .' | '.$time .' | ): ' . $logstr . "\r\n\t" . 'In file "' . $logfile . '" on line "' . $logline . '"' . "\r\n";
|
|---|
| 86 |
|
|---|
| 87 | if ($logno <= LOG_LEVEL_ECHO) {
|
|---|
| 88 | echo '<!-- ' . $errorString . ' -->';
|
|---|
| 89 | }
|
|---|
| 90 | if ((!defined('IGNORE_LOG_LEVEL_WRITE')) && ($logno <= LOG_LEVEL_WRITE)) {
|
|---|
| 91 | $filename = 'logfile.txt';
|
|---|
| 92 | if (is_writable($filename)) {
|
|---|
| 93 |
|
|---|
| 94 | //Check if the file can be opened
|
|---|
| 95 | if (!$handle = fopen($filename, 'w')) {
|
|---|
| 96 | define('IGNORE_LOG_LEVEL_WRITE', true);
|
|---|
| 97 | trigger_log(SYSLOG_EMERG, 'Cannot open file "' . $filename . '"', __FILE__, __LINE__);
|
|---|
| 98 | exit;
|
|---|
| 99 | }
|
|---|
| 100 |
|
|---|
| 101 | // Write $errorString to file.
|
|---|
| 102 | if (fwrite($handle, $errorString) === FALSE) {
|
|---|
| 103 | define('LOG_LEVEL_WRITE', LOG_LEVEL_NONE);
|
|---|
| 104 | trigger_log(SYSLOG_EMERG, 'Cannot write to "' . $filename . '"', __FILE__, __LINE__);
|
|---|
| 105 | exit;
|
|---|
| 106 | }
|
|---|
| 107 |
|
|---|
| 108 | fclose($handle);
|
|---|
| 109 |
|
|---|
| 110 | } else {
|
|---|
| 111 | define('IGNORE_LOG_LEVEL_WRITE', true);
|
|---|
| 112 | trigger_log(SYSLOG_EMERG, 'Cannot write to "' . $filename . '"', __FILE__, __LINE__);
|
|---|
| 113 | }
|
|---|
| 114 | }
|
|---|
| 115 |
|
|---|
| 116 | if ($logno <= LOG_LEVEL_MAIL) {
|
|---|
| 117 | mail('test@test.com', 'Nodemap error', $errorString);
|
|---|
| 118 | }
|
|---|
| 119 | }
|
|---|
| 120 | }
|
|---|
| 121 |
|
|---|
| 122 | $LOG_HANDLER = new LogHandler();
|
|---|
| 123 |
|
|---|
| 124 | /*
|
|---|
| 125 | * Function: trigger_log
|
|---|
| 126 | * Parameters: int $logno, string $logstr, string $logfile, int $logline
|
|---|
| 127 | * Function: Handling with log entries, forwarding them to our $LOG_HANDLER object.
|
|---|
| 128 | */
|
|---|
| 129 | function trigger_log($logno, $logstr, $logfile, $logline) {
|
|---|
| 130 | global $LOG_HANDLER;
|
|---|
| 131 |
|
|---|
| 132 | $LOG_HANDLER->logEntry($logno, $logstr, $logfile, $logline);
|
|---|
| 133 | }
|
|---|
| 134 | ?>
|
|---|
