89 lines
2 KiB
PHP
89 lines
2 KiB
PHP
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<?php
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$redirects = array(
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{% for from, to in redirects.items() %}
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"{{ from }}" => "{{ to }}",
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{% endfor %}
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);
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$gone = array(
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{% for gone in gones %}
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"{{ gone }}" => true,
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{% endfor %}
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);
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function redirect_to($uri) {
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header('HTTP/1.1 301 Moved Permanently');
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if (preg_match("/^https?/", $uri))
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$target = $uri;
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else
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$target = '{{ site.url }}/'. trim($uri, '/') . '/';
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header("Location: ". $target);
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exit;
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}
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function gone($uri) {
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header('HTTP/1.1 410 Gone');
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die('<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="utf-8"/>
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<meta content="width=device-width,initial-scale=1,minimum-scale=1" name="viewport"/>
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<title>Gone</title>
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</head>
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<body>
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<h1><center>This content was deleted.</center></h1>
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<hr>
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<p><center>{{ site.domain }}</center></p>
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</body>
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</html>');
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}
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function notfound() {
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header('HTTP/1.0 404 Not Found');
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die('<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="utf-8"/>
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<meta content="width=device-width,initial-scale=1,minimum-scale=1" name="viewport"/>
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<title>Not found</title>
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</head>
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<body>
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<h1><center>This was not found.</center></h1>
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<h2><center>Please search for it instead.</center></h2>
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<p>
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<center>
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<form action="/search.php" class="search-form" method="get" role="search">
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<label for="search">Search</label>
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<input id="q" name="q" placeholder="search..." title="Search for:" type="search" value=""/>
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<input type="submit" value="OK"/>
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</form>
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</center>
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</p>
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</body>
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</html>');
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}
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function maybe_redirect($uri) {
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if (file_exists("./$uri/index.html")) {
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redirect_to($uri);
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}
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}
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$uri = filter_var($_SERVER['REQUEST_URI'], FILTER_SANITIZE_URL);
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$uri = str_replace('../', '', $uri);
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$uri = str_replace('/feed/', '', $uri);
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$uri = str_replace('/atom/', '', $uri);
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$uri = trim($uri, '/');
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if (isset($gone[$uri]))
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gone($uri);
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elseif (isset($redirects[$uri]))
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redirect_to($redirects[$uri]);
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elseif (strstr($uri, '_'))
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maybe_redirect(str_replace('_', '-', $uri));
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else
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notfound();
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