Add search.

src/main/java/me/kavin/piped/Main.java

@@ -124,6 +124,20 @@ public class Main {
 
 	    });
 
+	    routes.get("/search", (req, res) -> {
+
+		QueryStringDecoder query = new QueryStringDecoder(req.uri());
+
+		try {
+		    return writeResponse(res, ResponseHelper.searchResponse(query.parameters().get("q").get(0)), 200,
+			    "public, max-age=600");
+		} catch (Exception e) {
+		    e.printStackTrace();
+		    return writeResponse(res, ExceptionUtils.getStackTrace(e), 500, "private");
+		}
+
+	    });
+
 	    routes.get("/trending", (req, res) -> {
 
 		try {

src/main/java/me/kavin/piped/utils/ResponseHelper.java

@@ -21,6 +21,7 @@ import org.schabi.newpipe.extractor.comments.CommentsInfo;
 import org.schabi.newpipe.extractor.exceptions.ExtractionException;
 import org.schabi.newpipe.extractor.exceptions.ParsingException;
 import org.schabi.newpipe.extractor.kiosk.KioskInfo;
+import org.schabi.newpipe.extractor.search.SearchInfo;
 import org.schabi.newpipe.extractor.stream.Stream;
 import org.schabi.newpipe.extractor.stream.StreamInfo;
 import org.schabi.newpipe.extractor.stream.StreamInfoItem;
@@ -37,6 +38,8 @@ import me.kavin.piped.utils.obj.PipedStream;
 import me.kavin.piped.utils.obj.StreamItem;
 import me.kavin.piped.utils.obj.Streams;
 import me.kavin.piped.utils.obj.Subtitle;
+import me.kavin.piped.utils.obj.search.SearchItem;
+import me.kavin.piped.utils.obj.search.SearchStream;
 
 public class ResponseHelper {
 
@@ -205,6 +208,33 @@ public class ResponseHelper {
 
     }
 
+    public static final String searchResponse(String q) throws IOException, ExtractionException, InterruptedException {
+
+	final SearchInfo info = SearchInfo.getInfo(Constants.YOUTUBE_SERVICE,
+		Constants.YOUTUBE_SERVICE.getSearchQHFactory().fromQuery(q));
+
+	ObjectArrayList<SearchItem> items = new ObjectArrayList<>();
+
+	info.getRelatedItems().forEach(item -> {
+	    switch (item.getInfoType()) {
+	    case STREAM:
+		StreamInfoItem stream = (StreamInfoItem) item;
+		items.add(new SearchStream(item.getName(), rewriteURL(item.getThumbnailUrl()),
+			item.getUrl().substring(23), stream.getViewCount(), stream.getDuration()));
+		break;
+	    case CHANNEL:
+		items.add(new SearchItem(item.getName(), rewriteURL(item.getThumbnailUrl()),
+			item.getUrl().substring(23)));
+		break;
+	    default:
+		break;
+	    }
+	});
+
+	return Constants.mapper.writeValueAsString(items);
+
+    }
+
     private static final String getLBRYStreamURL(String videoId) throws IOException, InterruptedException {
 
 	String lbryId = new JSONObject(Constants.h2client.send(HttpRequest

src/main/java/me/kavin/piped/utils/obj/search/SearchItem.java

@@ -0,0 +1,24 @@
+package me.kavin.piped.utils.obj.search;
+
+public class SearchItem {
+
+    private String name, thumbnail, url;
+
+    public SearchItem(String name, String thumbnail, String url) {
+	this.name = name;
+	this.thumbnail = thumbnail;
+	this.url = url;
+    }
+
+    public String getName() {
+	return name;
+    }
+
+    public String getThumbnail() {
+	return thumbnail;
+    }
+
+    public String getUrl() {
+	return url;
+    }
+}

src/main/java/me/kavin/piped/utils/obj/search/SearchStream.java

@@ -0,0 +1,20 @@
+package me.kavin.piped.utils.obj.search;
+
+public class SearchStream extends SearchItem {
+
+    private long views, duration;
+
+    public SearchStream(String name, String thumbnail, String url, long views, long duration) {
+	super(name, thumbnail, url);
+	this.views = views;
+	this.duration = duration;
+    }
+
+    public long getViews() {
+	return views;
+    }
+
+    public long getDuration() {
+	return duration;
+    }
+}