Add dumb: a privacy focused genius frontend alternative

api/lyrics.php

@@ -3,8 +3,9 @@
  * api/lyrics.php
  * --------------
  * Lyrics lookup. Tries LRCLIB first (free, no key, has synced lyrics), then
- * falls back to scraping the public Genius song page if LRCLIB has nothing
- * and a Genius token is configured. Returns JSON:
+ * falls back to dumb (if USE_DUMB is on) or scraping the public Genius song
+ * page (if a Genius token is configured) when LRCLIB has nothing. Returns
+ * JSON:
  *
  *   {
  *     "found":  true|false,
@@ -81,53 +82,24 @@ if ($lrc !== null) {
     json_out(['found' => true, 'lyrics' => $lrc['lyrics'], 'synced' => $lrc['synced'], 'url' => '']);
 }
 
+/* -- dumb (Genius-API-free fallback) ----------------------------------------- */
+if (cfg('dumb.enabled')) {
+    $path = dumb_search($artist, $title, $timeout);
+    if ($path === '') json_out($empty);
+    $song = dumb_song($path, $timeout);
+    $url  = cfg('dumb.url') . $path;
+    if ($song === null || $song['lyrics'] === '') {
+        json_out(['found' => false, 'lyrics' => '', 'synced' => [], 'url' => $url]);
+    }
+    json_out(['found' => true, 'lyrics' => $song['lyrics'], 'synced' => [], 'url' => $url]);
+}
+
 /* -- Genius (fallback) ------------------------------------------------------- */
 if (cfg('genius.token') === '') json_out($empty);
 
 $token   = cfg('genius.token');
 $headers = ['Authorization: Bearer ' . $token];
 
-/**
- * Return the inner HTML of a balanced <div> whose opening tag starts at $lt.
- * Correctly handles nested <div> elements.
- */
-function inner_balanced_div($html, $lt) {
-    $open = strpos($html, '>', $lt);
-    if ($open === false) return '';
-    $i = $open + 1;
-    $start = $i;
-    $len = strlen($html);
-    $depth = 1;
-    while ($i < $len && $depth > 0) {
-        $next = strpos($html, '<', $i);
-        if ($next === false) break;
-        if (strncasecmp(substr($html, $next, 5), '</div', 5) === 0) {
-            $depth--;
-            if ($depth === 0) return substr($html, $start, $next - $start);
-            $i = $next + 5;
-        } elseif (strncasecmp(substr($html, $next, 4), '<div', 4) === 0) {
-            $depth++;
-            $i = $next + 4;
-        } else {
-            $i = $next + 1;
-        }
-    }
-    return substr($html, $start, max(0, $i - $start));
-}
-
-/** Turn one container's HTML into plain text with newlines. */
-function container_to_text($fragment) {
-    // Line breaks -> newlines before stripping tags.
-    $fragment = preg_replace('#<br\s*/?>#i', "\n", $fragment);
-    // Drop any stray script/style.
-    $fragment = preg_replace('#<(script|style)\b[^>]*>.*?</\1>#is', '', $fragment);
-    // Block-level tags imply a line break.
-    $fragment = preg_replace('#</(p|div)>#i', "\n", $fragment);
-    $text = strip_tags($fragment);
-    $text = html_entity_decode($text, ENT_QUOTES | ENT_HTML5, 'UTF-8');
-    return $text;
-}
-
 /* -- Find the song on Genius ----------------------------------------------- */
 $query  = rawurlencode(trim($artist . ' - ' . $title, ' -'));
 $search = http_get('https://api.genius.com/search?q=' . $query, $timeout, $headers);