feat: Implement recaptcha verification

app/build.gradle

@@ -181,4 +181,5 @@ dependencies {
     //Smart LOck authentication
     implementation "com.google.android.gms:play-services-auth:${rootConfiguration.playServiceAuthVersion}"
     implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:${rootConfiguration.kotlinVersion}"
+    implementation "com.google.android.gms:play-services-safetynet:${rootConfiguration.safetynetVersion}"
 }

app/config.gradle

@@ -25,4 +25,5 @@ ext {
     mockitoCoreVersion = '1.10.19'
     playServiceAuthVersion='16.0.1'
     shimmerVersion = "0.5.0"
+    safetynetVersion = "16.0.0"
 }

app/src/main/java/org/fossasia/susi/ai/data/LoginModel.kt

@@ -22,10 +22,10 @@ class LoginModel : ILoginModel {
     private lateinit var authResponseCall: Call<LoginResponse>
     private lateinit var userSettingResponseCall: Call<UserSetting>
 
-    override fun login(email: String, password: String, listener: ILoginModel.OnLoginFinishedListener) {
+    override fun login(email: String, password: String, recaptcha_response: String, listener: ILoginModel.OnLoginFinishedListener) {
 
         authResponseCall = ClientBuilder.susiApi
-                .login(email, password)
+                .login(email, password, recaptcha_response)
 
         authResponseCall.enqueue(object : Callback<LoginResponse> {
             override fun onResponse(call: Call<LoginResponse>, response: Response<LoginResponse>) {

app/src/main/java/org/fossasia/susi/ai/data/contract/ILoginModel.kt

@@ -18,7 +18,7 @@ interface ILoginModel {
         fun onErrorSetting()
     }
 
-    fun login(email: String, password: String, listener: OnLoginFinishedListener)
+    fun login(email: String, password: String, recaptcha_response: String, listener: OnLoginFinishedListener)
 
     fun cancelLogin()
 

app/src/main/java/org/fossasia/susi/ai/login/LoginActivity.kt

@@ -12,6 +12,9 @@ import android.view.inputmethod.EditorInfo
 import android.widget.ArrayAdapter
 import android.widget.Toast
 import com.google.android.gms.auth.api.credentials.Credential
+import com.google.android.gms.safetynet.SafetyNet
+import com.google.android.gms.tasks.OnFailureListener
+import com.google.android.gms.tasks.OnSuccessListener
 import kotlinx.android.synthetic.main.activity_login.*
 import org.fossasia.susi.ai.R
 import org.fossasia.susi.ai.chat.ChatActivity
@@ -22,6 +25,7 @@ import org.fossasia.susi.ai.helper.Utils.hideSoftKeyboard
 import org.fossasia.susi.ai.login.contract.ILoginPresenter
 import org.fossasia.susi.ai.login.contract.ILoginView
 import org.fossasia.susi.ai.signup.SignUpActivity
+import timber.log.Timber
 
 /**
  * <h1>The Login activity.</h1>
@@ -36,6 +40,7 @@ class LoginActivity : AppCompatActivity(), ILoginView {
     lateinit var builder: AlertDialog.Builder
     private lateinit var loginPresenter: ILoginPresenter
     private lateinit var progressDialog: ProgressDialog
+    private var recaptcha_response = ""
 
     @SuppressLint("InflateParams")
     override fun onCreate(savedInstanceState: Bundle?) {
@@ -166,10 +171,30 @@ class LoginActivity : AppCompatActivity(), ILoginView {
 
     private fun logIn() {
         logIn.setOnClickListener {
-            startLogin()
+            if (PrefManager.getBoolean(R.string.login_failed, false)) {
+                verifyRecaptcha()
+            } else {
+                startLogin()
+                recaptcha_response = ""
+            }
         }
     }
 
+    fun verifyRecaptcha() {
+        SafetyNet.getClient(this).verifyWithRecaptcha(RECAPTCHA_KEY)
+                .addOnSuccessListener(this, OnSuccessListener { response ->
+                    val userResponseToken = response.tokenResult
+                    if (response.tokenResult?.isNotEmpty() == true) {
+                        Timber.d("User Response Token - " + userResponseToken)
+                        recaptcha_response = userResponseToken
+                        startLogin()
+                    }
+                })
+                .addOnFailureListener(this, OnFailureListener { e ->
+                    Timber.e("Error: " + e)
+                })
+    }
+
     private fun startLogin() {
         val stringEmail = email.editText?.text.toString()
         val stringPassword = password.editText?.text.toString()
@@ -180,7 +205,7 @@ class LoginActivity : AppCompatActivity(), ILoginView {
         password.error = null
         inputUrl.error = null
 
-        loginPresenter.login(stringEmail, stringPassword, !customServer.isChecked, stringURL)
+        loginPresenter.login(stringEmail, stringPassword, recaptcha_response, !customServer.isChecked, stringURL)
     }
 
     private fun cancelLogin() {

app/src/main/java/org/fossasia/susi/ai/login/LoginPresenter.kt

@@ -73,7 +73,7 @@ class LoginPresenter(loginActivity: LoginActivity) :
         loginView?.skipLogin()
     }
 
-    override fun login(email: String, password: String, isSusiServerSelected: Boolean, url: String) {
+    override fun login(email: String, password: String, recaptcha_response: String, isSusiServerSelected: Boolean, url: String) {
         if (email.isEmpty()) {
             loginView?.invalidCredentials(true, Constant.EMAIL)
             return
@@ -114,7 +114,7 @@ class LoginPresenter(loginActivity: LoginActivity) :
         this.email = email
         PrefManager.putString(Constant.EMAIL, this.email)
         loginView?.showProgress(true)
-        loginModel.login(email.trim { it <= ' ' }.toLowerCase(), password, this)
+        loginModel.login(email.trim { it <= ' ' }.toLowerCase(), password, recaptcha_response, this)
     }
 
     override fun cancelLogin() {
@@ -147,9 +147,11 @@ class LoginPresenter(loginActivity: LoginActivity) :
             utilModel.saveEmail(email)
             utilModel.saveAnonymity(false)
             loginModel.getUserSetting(this)
+            PrefManager.putBoolean(R.string.login_failed, false)
 
             message = response.body()?.message.toString()
         } else if (response.code() == 422) {
+            PrefManager.putBoolean(R.string.login_failed, true)
             loginView?.showProgress(false)
             loginView?.onLoginError(utilModel.getString(R.string.invalid_credentials_title),
                     utilModel.getString(R.string.invalid_credentials))

app/src/main/java/org/fossasia/susi/ai/login/contract/ILoginPresenter.kt

@@ -11,7 +11,7 @@ interface ILoginPresenter {
 
     fun onAttach(loginView: ILoginView)
 
-    fun login(email: String, password: String, isSusiServerSelected: Boolean, url: String)
+    fun login(email: String, password: String, recaptcha_response: String, isSusiServerSelected: Boolean, url: String)
 
     fun skipLogin()
 

app/src/main/java/org/fossasia/susi/ai/rest/services/SusiService.kt

@@ -85,7 +85,8 @@ interface SusiService {
     @POST("/aaa/login.json?type=access-token")
     fun login(
         @Query("login") email: String,
-        @Query("password") password: String
+        @Query("password") password: String,
+        @Query("g-recaptcha-response") recaptcha_response: String
     ): Call<LoginResponse>
 
     /**

app/src/main/res/values/strings.xml

@@ -12,6 +12,7 @@
     <string name="action_wall_settings">Wallpaper</string>
     <string name="used_voice" translatable="false">Used Voice before?</string>
     <string name="voice_welcome">Hi! How can I help you?</string>
+    <string name="login_failed" translatable="false">login_failed</string>
 
     <string name="background_no_wall">no_wall</string>