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| author | Anton Luka Šijanec <anton@sijanec.eu> | 2022-01-11 12:35:47 +0100 |
|---|---|---|
| committer | Anton Luka Šijanec <anton@sijanec.eu> | 2022-01-11 12:35:47 +0100 |
| commit | 19985dbb8c0aa66dc4bf7905abc1148de909097d (patch) | |
| tree | 2cd5a5d20d7e80fc2a51adf60d838d8a2c40999e /admin/survey/minify/static/lib.php | |
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Diffstat (limited to 'admin/survey/minify/static/lib.php')
| -rw-r--r-- | admin/survey/minify/static/lib.php | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/admin/survey/minify/static/lib.php b/admin/survey/minify/static/lib.php new file mode 100644 index 0000000..32c6df5 --- /dev/null +++ b/admin/survey/minify/static/lib.php @@ -0,0 +1,68 @@ +<?php
+
+namespace Minify\StaticService;
+
+/**
+ * Build a URI for the static cache
+ *
+ * @param string $static_uri E.g. "/min/static"
+ * @param string $query E.g. "b=scripts&f=1.js,2.js"
+ * @param string $type "css" or "js"
+ * @return string
+ */
+function build_uri($static_uri, $query, $type) {
+ $static_uri = rtrim($static_uri, '/');
+ $query = ltrim($query, '?');
+
+ $ext = ".$type";
+ if (substr($query, - strlen($ext)) !== $ext) {
+ $query .= "&z=$ext";
+ }
+
+ $cache_time = get_cache_time();
+
+ return "$static_uri/$cache_time/$query";
+}
+
+/**
+ * Get the name of the current cache directory within static/. E.g. "1467089473"
+ *
+ * @param bool $auto_create Automatically create the directory if missing?
+ * @return null|string null if missing or can't create
+ */
+function get_cache_time($auto_create = true) {
+ foreach (scandir(__DIR__) as $entry) {
+ if (ctype_digit($entry)) {
+ return $entry;
+ break;
+ }
+ }
+
+ if (!$auto_create) {
+ return null;
+ }
+
+ $time = (string)time();
+ if (!mkdir(__DIR__ . "/$time")) {
+ return null;
+ }
+
+ return $time;
+}
+
+function flush_cache() {
+ $time = get_cache_time(false);
+ if ($time) {
+ remove_tree(__DIR__ . "/$time");
+ }
+}
+
+function remove_tree($dir) {
+ $files = array_diff(scandir($dir), array('.', '..'));
+
+ foreach ($files as $file) {
+ is_dir("$dir/$file") ? remove_tree("$dir/$file") : unlink("$dir/$file");
+ }
+
+ return rmdir($dir);
+}
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