adding NanoHTTP server for chrome debug

lib/index.js

@@ -5,7 +5,11 @@
 'use strict';
 
 if (typeof Realm != 'undefined') {
+    // The global Realm constructor should be available on device (using JavaScriptCore).
     module.exports = Realm;  // eslint-disable-line no-undef
-} else {
+} else if (navigator.userAgent) {
+    // The userAgent will be defined when running in a browser (such as Chrome debugging mode).
     module.exports = require('./realm');
-}
+} else {
+    throw new Error('Missing Realm constructor - please ensure RealmReact framework is included!');
+}

react-native/android/app/build.gradle

@@ -116,7 +116,6 @@ task buildReactNdkLib(dependsOn: [prepareJSC], type: Exec) {
             "NDK_LIBS_OUT=$buildDir/react-ndk/all",
             "THIRD_PARTY_NDK_DIR=$buildDir/third-party-ndk",
             '-C', file('src/main/jni').absolutePath,
-            '-B',
             'NDK_LOG=1',
             'NDK_DEBUG=1',
             '--jobs', Runtime.runtime.availableProcessors(),
@@ -185,6 +184,7 @@ dependencies {
     compile 'org.webkit:android-jsc:r174650'
     compile "com.facebook.react:react-native:0.16.+"
     compile 'com.github.KeepSafe:ReLinker:1.1'
+    compile 'org.nanohttpd:nanohttpd:2.2.0'
 
     testCompile "junit:junit:${JUNIT_VERSION}"
     testCompile "org.powermock:powermock-api-mockito:${POWERMOCK_VERSION}"

react-native/android/app/src/main/AndroidManifest.xml

@@ -20,8 +20,9 @@
     </application>
 
 </manifest> -->
-<manifest xmlns:android="http://schemas.android.com/apk/res/android" package="com.reacttests">
 
+<manifest xmlns:android="http://schemas.android.com/apk/res/android" package="com.reacttests">
+    <uses-permission android:name="android.permission.INTERNET" />
     <uses-permission android:name="android.permission.SYSTEM_ALERT_WINDOW"/>
 
     <application />

react-native/android/app/src/main/java/com/reacttests/RealmReactAndroid.java

@@ -12,12 +12,18 @@ import android.widget.Toast;
 import com.facebook.react.bridge.Callback;
 import android.util.Log;
 import java.io.IOException;
+import java.util.Map;
+import fi.iki.elonen.NanoHTTPD;
 
 public class RealmReactAndroid extends ReactContextBaseJavaModule {
 	private static final String DURATION_SHORT_KEY = "SHORT";
     private static final String DURATION_LONG_KEY = "LONG";
     private String filesDirPath;
 
+    private static final int DEFAULT_PORT = 8082;
+    private AndroidWebServer webServer;
+    private long rpcServerPtr;
+
 	public RealmReactAndroid(ReactApplicationContext reactContext) {
 		super(reactContext);
         try {
@@ -36,24 +42,67 @@ public class RealmReactAndroid extends ReactContextBaseJavaModule {
     @Override
     public Map<String, Object> getConstants() {
         Log.w("RealmReactAndroid", injectRealmJsContext(filesDirPath));
+        startWebServer();
         return new HashMap<>();
     }
 
-    @ReactMethod
-    public void resultOfJsContextInjection(Callback successCallback) {
-        // Inject our JS Context
-        Exception exception = new Exception();
-        exception.fillInStackTrace();
-        exception.printStackTrace();
-
-        successCallback.invoke(injectRealmJsContext(filesDirPath));
+    @Override
+    public void onCatalystInstanceDestroy() {
+       if (webServer != null) {
+            Log.w("RealmReactAndroid", "Stopping the webserver");
+            webServer.stop();
+       }
+    }
+    // @ReactMethod
+    // public void setUpChromeDebugMode() {
+    //     startWebServer();
+    //     // setupChromeDebugModeRealmJsContext();
+    // }
+    ///FIXME find the right callback to call webServerstop
+    private void startWebServer() {
+        rpcServerPtr = setupChromeDebugModeRealmJsContext();
+        webServer = new AndroidWebServer(DEFAULT_PORT);
+        try {
+            webServer.start();
+            Log.w("RealmReactAndroid", "Starting WebServer, Host: " + webServer.getHostname() + " Port: " + webServer.getListeningPort());
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
     }
 
-    @ReactMethod
-    public void show(String message, int duration) {
-        Toast.makeText(getReactApplicationContext(), message, duration).show();
+    // WebServer
+    class AndroidWebServer extends NanoHTTPD {
+        public AndroidWebServer(int port) {
+            super(port);
+        }
+
+        public AndroidWebServer(String hostname, int port) {
+            super(hostname, port);
+        }
+
+        @Override
+        public Response serve(IHTTPSession session) {
+            String cmdUri = session.getUri();
+            Log.w("AndroidWebServer", "Session Uri: " + cmdUri + " Mehtod: " + session.getMethod().name());
+            // String msg = "<html><body><h1>Hello server</h1>\n";
+            // Map<String, String> parms = session.getParms();
+            // if (parms.get("username") == null) {
+            //     msg += "<form action='?' method='get'>\n  <p>Your name: <input type='text' name='username'></p>\n" + "</form>\n";
+            // } else {
+            //     msg += "<p>Hello, " + parms.get("username") + "!</p>";
+            // }
+            // return newFixedLengthResponse( msg + "</body></html>\n" );
+            String jsonResponse = processChromeDebugCommand(rpcServerPtr, cmdUri);
+            Response response = newFixedLengthResponse(jsonResponse);
+            response.addHeader("Access-Control-Allow-Origin", "http://localhost:8081");
+            return response;
+        }    
     }
 
     // fileDir: path of the internal storage of the application
 	private native String injectRealmJsContext(String fileDir);
+    // responsible for creating the rpcServer that will accept thw chrome Websocket command
+    private native long setupChromeDebugModeRealmJsContext();
+    // this receives one command from Chrome debug, & return the processing we should post back
+    private native String processChromeDebugCommand(long rpcServerPointer, String cmd);
 }

src/android/com_reacttests_RealmReactAndroid.cpp

@@ -45,7 +45,7 @@ JNIEXPORT jstring JNICALL Java_com_reacttests_RealmReactAndroid_injectRealmJsCon
 	  	msg << "Got the globalContext map, size=" << s_globalContextRefToJSCExecutor.size();
 
           for (auto pair : s_globalContextRefToJSCExecutor) {
-			  RJSInitializeInContext(pair.first);
+			   RJSInitializeInContext(pair.first);
 		  }
 	  	return env->NewStringUTF(msg.str().c_str());
 	  } else {
@@ -53,3 +53,27 @@ JNIEXPORT jstring JNICALL Java_com_reacttests_RealmReactAndroid_injectRealmJsCon
 	  }
   }
 
+/*
+ * Class:     com_reacttests_RealmReactAndroid
+ * Method:    setupChromeDebugModeRealmJsContext
+ */
+  JNIEXPORT jlong JNICALL Java_com_reacttests_RealmReactAndroid_setupChromeDebugModeRealmJsContext
+  (JNIEnv *, jclass) 
+  {
+    __android_log_print(ANDROID_LOG_ERROR, "JSRealm", "Java_com_reacttests_RealmReactAndroid_setupChromeDebugModeRealmJsContext");
+    return 0;
+  }
+
+/*
+ * Class:     com_reacttests_RealmReactAndroid
+ * Method:    processChromeDebugCommand
+ */
+
+  JNIEXPORT jstring JNICALL Java_com_reacttests_RealmReactAndroid_processChromeDebugCommand
+  (JNIEnv *env, jclass, jlong rpc_server_ptr, jstring chrome_cmd) 
+  {
+    __android_log_print(ANDROID_LOG_ERROR, "JSRealm", "Java_com_reacttests_RealmReactAndroid_processChromeDebugCommand");
+    return env->NewStringUTF("Echo");
+  }
+
+

src/android/com_reacttests_RealmReactAndroid.h

@@ -15,6 +15,21 @@ extern "C" {
 JNIEXPORT jstring JNICALL Java_com_reacttests_RealmReactAndroid_injectRealmJsContext
   (JNIEnv *, jclass, jstring);
 
+/*
+ * Class:     com_reacttests_RealmReactAndroid
+ * Method:    setupChromeDebugModeRealmJsContext
+ */
+JNIEXPORT jlong JNICALL Java_com_reacttests_RealmReactAndroid_setupChromeDebugModeRealmJsContext
+  (JNIEnv *, jclass);
+
+/*
+ * Class:     com_reacttests_RealmReactAndroid
+ * Method:    processsetupChromeDebugCommand
+ */
+JNIEXPORT jstring JNICALL Java_com_reacttests_RealmReactAndroid_processChromeDebugCommand
+  (JNIEnv *, jclass, jlong, jstring);
+
+
 #ifdef __cplusplus
 }
 #endif

tests/react-test-app/android/app/build.gradle

@@ -78,6 +78,7 @@ dependencies {
     compile 'com.facebook.react:ReactAndroid-debug@aar'
     compile 'com.reacttests:app-debug@aar'
     compile 'com.github.KeepSafe:ReLinker:1.1'
+    compile 'org.nanohttpd:nanohttpd:2.2.0'
 
     compile 'com.google.code.findbugs:jsr305:3.0.0'
     compile 'com.facebook.stetho:stetho-okhttp:1.2.0'