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redirect: Add counting

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This commit is contained in:
Michael Fabian 'Xaymar' Dirks
2022-07-25 00:15:28 +02:00
parent fd55d974c4
commit e30e5df3c4
1 changed files with 70 additions and 59 deletions
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redirect.php
+70 -59
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@@ -35,6 +35,14 @@ INSERT INTO `redirects`
SET
`path` = ?
STR;
$STATEMENTS["Increment"] = <<<STR
UPDATE `redirects`
SET
`uses` = `uses` + 1
WHERE
(`disabled` = false)
AND (`path` = ?)
STR;
// Convert text into actual prepared statements.
foreach($STATEMENTS as $k => $v) {
@@ -42,74 +50,77 @@ STR;
}
}
{ // Try and redirect user according to the full provided URI
function insert_lookup($url) {
global $STATEMENTS;
$STATEMENTS['Insert']->bind_param('s', $url);
if (!$STATEMENTS['Insert']->execute()) {
throw new Exception($SQL['Handle']->errno." ".$SQL['Handle']->error);
} else if (!$STATEMENTS['Insert']->get_result()) {
throw new Exception($SQL['Handle']->errno." ".$SQL['Handle']->error);
}
}
function increment_lookup($url) {
global $STATEMENTS;
$STATEMENTS['Increment']->bind_param('s', $url);
if (!$STATEMENTS['Increment']->execute()) {
throw new Exception($SQL['Handle']->errno." ".$SQL['Handle']->error);
} else if (!$STATEMENTS['Increment']->get_result()) {
throw new Exception($SQL['Handle']->errno." ".$SQL['Handle']->error);
}
}
function redirect_lookup($url) {
global $STATEMENTS;
$STATEMENTS['LookUp']->bind_param('s', $url);
if (!$STATEMENTS['LookUp']->execute()) {
throw new Exception("".$SQL['Handle']->errno." ".$SQL['Handle']->error);
}
$output = null;
$res = $STATEMENTS['LookUp']->get_result();
if ($res->num_rows == 0) {
insert_lookup($url);
} else {
while($obj = $res->fetch_object()) {
if ($obj->target != null) {
$output = $obj->target;
increment_lookup($url);
break;
}
}
}
$res->close();
return $output;
}
try { // Try and redirect user according to the full provided URI
$url = urldecode($_SERVER['REQUEST_URI']);
$url_parts = parse_url($url);
// Try and identify a redirect by the full URI.
$STATEMENTS['LookUp']->bind_param('s', $url);
if (!$STATEMENTS['LookUp']->execute()) {
header("Service Unavailable", true, 503);
header("Retry-After: 30", true);
die($SQL['Handle']->errno." ".$SQL['Handle']->error);
} else {
$res = $STATEMENTS['LookUp']->get_result();
if ($res->num_rows != 0) {
while($obj = $res->fetch_object()) {
if ($obj->target != null) {
header("Location: ".$obj->target, true, 307);
$res->close();
die();
}
}
} else {
$STATEMENTS['Insert']->bind_param('s', $url);
if (!$STATEMENTS['Insert']->execute()) {
header("Service Unavailable", true, 503);
header("Retry-After: 30", true);
die($SQL['Handle']->errno." ".$SQL['Handle']->error);
} else if (!$STATEMENTS['Insert']->get_result()) {
header("Service Unavailable", true, 503);
header("Retry-After: 30", true);
die($SQL['Handle']->errno." ".$SQL['Handle']->error);
}
}
$res->close();
$location = null;
// Try and identify a redirect by the full URI.
$location = redirect_lookup($url);
if ($location == null) {
// Try and identify a redirect by the path.
$location = redirect_lookup($url_parts["path"]);
}
// Try and identify a redirect by the path.
$STATEMENTS['LookUp']->bind_param('s', $url_parts["path"]);
if (!$STATEMENTS['LookUp']->execute()) {
header("Service Unavailable", true, 503);
header("Retry-After: 30", true);
die($SQL['Handle']->errno." ".$SQL['Handle']->error);
if ($location != null) {
header("Location: ".$location, true, 307);
} else {
$res = $STATEMENTS['LookUp']->get_result();
if ($res->num_rows != 0) {
while($obj = $res->fetch_object()) {
if ($obj->target != null) {
header("Location: ".$obj->target, true, 307);
$res->close();
die();
}
}
} else {
$STATEMENTS['Insert']->bind_param('s', $url_parts["path"]);
if (!$STATEMENTS['Insert']->execute()) {
header("Service Unavailable", true, 503);
header("Retry-After: 30", true);
die($SQL['Handle']->errno." ".$SQL['Handle']->error);
} else if (!$STATEMENTS['Insert']->get_result()) {
header("Service Unavailable", true, 503);
header("Retry-After: 30", true);
die($SQL['Handle']->errno." ".$SQL['Handle']->error);
}
}
$res->close();
header("Location: https://www.xaymar.com/404.html");
}
// In all other cases, just redirect to 404.
header("Location: https://www.xaymar.com/404.html");
} catch(Exception $e) {
header("Service Unavailable", true, 503);
header("Retry-After: 30", true);
die($e);
}
die();