55 lines
1.7 KiB
PHP
55 lines
1.7 KiB
PHP
<?php
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require_once(__DIR__ . '/config.lib.php');
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global $db;
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/*
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* The class of the connection that open_db() makes. It is always mysqli
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* on the site; the tests put a fake class in the global $db_class.
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*/
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function open_db($state) {
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global $db, $db_class;
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if ($state == 'open') {
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if (!$db) {
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$hostname = config('DB_HOST', 'localhost');
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$view_user = config('DB_USER');
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$view_pass = config('DB_PASS');
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$db_name = config('DB_NAME');
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// PHP 8.1+ throws exceptions by default; keep the old return-value checks working
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mysqli_report(MYSQLI_REPORT_OFF);
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$class = $db_class ?? 'mysqli';
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$db = new $class($hostname, $view_user, $view_pass, $db_name);
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if ($db->connect_error) {
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$detail = 'connect error (' . $db->connect_errno . ') ' . $db->connect_error;
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$db = NULL;
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db_fail($detail);
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}
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return TRUE;
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} else
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return FALSE;
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}
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else if ($state == 'close') {
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if ($db) {
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$db->close();
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$db = NULL;
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return TRUE;
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} else
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return FALSE;
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}
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}
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/*
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* Stop the page after a database error. The details, with the file and
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* line of the failed call, go to the PHP error log; the visitor only
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* sees a short apology.
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*/
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function db_fail($detail = NULL) {
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global $db;
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if ($detail === NULL)
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$detail = $db ? $db->error : 'no database connection';
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$caller = debug_backtrace(DEBUG_BACKTRACE_IGNORE_ARGS, 1)[0];
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error_log('xxx: database error at ' . basename($caller['file']) . ':' . $caller['line'] . ': ' . $detail);
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if (!headers_sent())
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header('HTTP/1.1 500 Internal Server Error');
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die('<p>Sorry, something went wrong. Please try again later.</p>');
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}
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?>
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