Use HTTPS protocol for secure remote URLs.

src/Entity/StationMount.php

@@ -373,6 +373,13 @@ class StationMount implements StationMountInterface
         return $fe_settings->getPort();
     }
 
+    public function getAutodjProtocol(): ?string
+    {
+        return Adapters::FRONTEND_SHOUTCAST === $this->getAutodjAdapterType()
+            ? self::PROTOCOL_ICY
+            : null;
+    }
+
     public function getAutodjUsername(): ?string
     {
         return '';

src/Entity/StationMountInterface.php

@@ -9,6 +9,10 @@ interface StationMountInterface
     public const FORMAT_AAC = 'aac';
     public const FORMAT_OPUS = 'opus';
 
+    public const PROTOCOL_ICY = 'icy';
+    public const PROTOCOL_HTTP = 'http';
+    public const PROTOCOL_HTTPS = 'https';
+
     public function getEnableAutodj(): bool;
 
     public function getAutodjUsername(): ?string;
@@ -23,6 +27,8 @@ interface StationMountInterface
 
     public function getAutodjPort(): ?int;
 
+    public function getAutodjProtocol(): ?string;
+
     public function getAutodjMount(): ?string;
 
     public function getAutodjAdapterType(): string;

src/Entity/StationRemote.php

@@ -440,6 +440,18 @@ class StationRemote implements StationMountInterface
         $this->source_port = $source_port;
     }
 
+    public function getAutodjProtocol(): ?string
+    {
+        if (Adapters::REMOTE_SHOUTCAST2 === $this->getAutodjAdapterType()) {
+            return self::PROTOCOL_ICY;
+        }
+
+        $urlScheme = parse_url($this->getUrl(), PHP_URL_SCHEME);
+        return ('https' === $urlScheme)
+            ? self::PROTOCOL_HTTPS
+            : self::PROTOCOL_HTTP;
+    }
+
     public function getAutodjAdapterType(): string
     {
         return $this->getType();

src/Radio/Backend/Liquidsoap/ConfigWriter.php

@@ -1037,9 +1037,10 @@ class ConfigWriter implements EventSubscriberInterface
         }
         $output_params[] = 'password = "' . $password . '"';
 
-        $isShoutcastMode = Adapters::REMOTE_ICECAST !== $mount->getAutodjAdapterType();
+        $protocol = $mount->getAutodjProtocol();
+
         if (!empty($mount->getAutodjMount())) {
-            if ($isShoutcastMode) {
+            if ($mount::PROTOCOL_ICY === $protocol) {
                 $output_params[] = 'icy_id = ' . $id;
             } else {
                 $output_params[] = 'mount = "' . self::cleanUpString($mount->getAutodjMount()) . '"';
@@ -1057,8 +1058,8 @@ class ConfigWriter implements EventSubscriberInterface
         $output_params[] = 'public = ' . ($mount->getIsPublic() ? 'true' : 'false');
         $output_params[] = 'encoding = "' . $charset . '"';
 
-        if ($isShoutcastMode) {
-            $output_params[] = 'protocol="icy"';
+        if (null !== $protocol) {
+            $output_params[] = 'protocol="' . $protocol . '"';
         }
 
         if (Entity\StationMountInterface::FORMAT_OPUS === $mount->getAutodjFormat()) {