864bb54496
for the search functionality, it's better to keep this contained instead of adding one more black magic (eg. nginx rules) Note: I've sort of exhausted client-side JS search options; the smallest index I was able to build was still a few megabytes, way to large for my taste, hence the SQLite FTS4 python + PHP solution. Yes, it's ugly, but it works, and PHP is available nearly everywhere. Nearly. Without something that can set headers properly, it's impossible to do real HTTP 410 Gone, and even HTTP 301 or 302, so it's very likely I'm stuck with the minimal PHP solution.
88 lines
2 KiB
PHP
88 lines
2 KiB
PHP
<?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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