Michael Fabian 'Xaymar' Dirks
125 lines
3.0 KiB
PHP
125 lines
3.0 KiB
PHP
<?php
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// SQL Information and Related
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$SQL = array();
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$SQL['Host'] = "database.svc.xaymar.com";
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$SQL['Database'] = "com.xaymar.www";
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$SQL['Username'] = "com.xaymar.www";
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$SQL['Password'] = "G_5R_ZXm6Uek9DEt";
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$SQL['Persistent'] = true; // Persistent database connection. (Recommended)
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{ // MySQL Database Connection
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// Try and connect to the database (otherwise die).
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ini_set("mysqli.allow_persistent", $SQL['Persistent']);
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mysqli_report(MYSQLI_REPORT_ERROR | MYSQLI_REPORT_STRICT);
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$SQL['Handle'] = new mysqli($SQL['Host'], $SQL['Username'], $SQL['Password'], $SQL['Database']);
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if ($SQL['Handle']->connect_errno) {
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header("500 Internal Server Error");
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die($SQL['Handle']->connect_errno." ".$SQL['Handle']->connect_error);
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}
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}
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{ // Prepare a few statements.
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$STATEMENTS = array();
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$STATEMENTS["LookUp"] = <<<STR
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SELECT `target`
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FROM `redirects`
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WHERE
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(`disabled` = false)
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AND (`path` = ?)
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ORDER BY
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`date_created` DESC
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STR;
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$STATEMENTS["Insert"] = <<<STR
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INSERT INTO `redirects`
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SET
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`path` = ?
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STR;
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$STATEMENTS["Increment"] = <<<STR
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UPDATE `redirects`
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SET
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`uses` = `uses` + 1
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WHERE
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(`disabled` = false)
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AND (`path` = ?)
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STR;
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// Convert text into actual prepared statements.
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foreach($STATEMENTS as $k => $v) {
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$STATEMENTS[$k] = $SQL['Handle']->prepare($v);
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}
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}
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function insert_lookup($url) {
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global $STATEMENTS;
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global $SQL;
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$STATEMENTS['Insert']->bind_param('s', $url);
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if (!$STATEMENTS['Insert']->execute()) {
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throw new Exception("".$SQL['Handle']->errno." ".$SQL['Handle']->error);
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} else if (!$STATEMENTS['Insert']->get_result()) {
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throw new Exception("".$SQL['Handle']->errno." ".$SQL['Handle']->error);
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}
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}
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function increment_lookup($url) {
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global $STATEMENTS;
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global $SQL;
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$STATEMENTS['Increment']->bind_param('s', $url);
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if (!$STATEMENTS['Increment']->execute()) {
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throw new Exception("".$SQL['Handle']->errno." ".$SQL['Handle']->error);
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}
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}
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function redirect_lookup($url) {
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global $STATEMENTS;
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global $SQL;
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$STATEMENTS['LookUp']->bind_param('s', $url);
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if (!$STATEMENTS['LookUp']->execute()) {
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throw new Exception("".$SQL['Handle']->errno." ".$SQL['Handle']->error);
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}
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$output = null;
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$res = $STATEMENTS['LookUp']->get_result();
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if ($res->num_rows == 0) {
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insert_lookup($url);
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} else {
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while($obj = $res->fetch_object()) {
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if ($obj->target != null) {
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$output = $obj->target;
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increment_lookup($url);
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break;
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}
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}
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}
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$res->close();
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return $output;
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}
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try { // Try and redirect user according to the full provided URI
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$url = urldecode($_SERVER['REQUEST_URI']);
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$url_parts = parse_url($url);
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$location = null;
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// Try and identify a redirect by the full URI.
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$location = redirect_lookup($url);
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if (!($location != null)) {
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// Try and identify a redirect by the path.
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$location = redirect_lookup($url_parts["path"]);
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}
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if ($location != null) {
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header("Location: ".$location, true, 307);
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die();
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}
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// In all other cases, just redirect to 404.
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header("Location: https://www.xaymar.com/404.html");
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} catch(Exception $e) {
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header("Retry-After: 30", true, 503);
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echo($e);
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}
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die(); |