Fix strm check

app/src/main/java/com/fongmi/android/tv/player/extractor/Strm.java

@@ -6,23 +6,34 @@ import com.fongmi.android.tv.player.Source;
 import com.fongmi.android.tv.utils.UrlUtil;
 import com.github.catvod.net.OkHttp;
 import com.github.catvod.utils.Path;
+import com.google.common.net.HttpHeaders;
 
 import java.io.File;
 
+import okhttp3.Response;
+
 public class Strm implements Source.Extractor {
 
     @Override
     public boolean match(Uri uri) {
-        return UrlUtil.path(uri).contains(".strm");
+        return UrlUtil.path(uri).endsWith(".strm");
     }
 
     @Override
     public String fetch(String url) throws Exception {
+        if (url.startsWith("http")) return http(url);
         if (url.startsWith("file")) url = url.substring(7);
-        if (url.startsWith("http")) return OkHttp.string(url).split("\\R", 2)[0];
         return Path.read(new File(url)).split("\\R", 2)[0];
     }
 
+    private String http(String url) throws Exception {
+        try (Response res = OkHttp.newCall(OkHttp.noRedirect(), url).execute()) {
+            String content = res.header(HttpHeaders.CONTENT_DISPOSITION, "");
+            boolean text = content.contains(".strm") || content.contains(".txt");
+            return text ? res.body().string().split("\\R", 2)[0] : url;
+        }
+    }
+
     @Override
     public void stop() {
     }