Merge pull request #1128 from RocketChat/beta

[RELEASE] Merge beta into master

.github/ISSUE_TEMPLATE.md

-Your Rocket.Chat.Android version: (make sure you are running the latest)
-<!-- Version can be found by opening the side menu and then clicking on the chevron alongside username -->
+## Description
+
+<!-- Please, describe what's the issue here. -->
+
+## Devices and Versions
+
+<!-- Version can be found by opening the side menu and then clicking on "Settings" and then "About" -->
+Your Rocket.Chat.Android version: (e.g. 2.1.0)
+Your Rocket.Chat Server version: (e.g. 0.63.1-develop)
 
 <!-- Found a bug? List all devices that reproduced it and all that doesn't -->
 Mobile device model and OS version: (e.g. "Nexus 7 - Android 6.0.1")
-<!-- Don't forget to list the steps to reproduce. Stack traces may help too :) -->
+
+## Steps to reproduce
+
+<!-- In case it is a bug, can you describe the steps to reproduce it please? -->
+
+## Logs
+
+<!-- Do you have any logs? It can help the developers indentifying the cause in case it's a bug. -->
+<!-- To get the logs, you can use [Logcat](https://developer.android.com/studio/debug/am-logcat.html) in Android Studio or you can use [Pidcat](https://github.com/JakeWharton/pidcat) -->

app/build.gradle

@@ -13,8 +13,8 @@ android {
         applicationId "chat.rocket.android"
         minSdkVersion 21
         targetSdkVersion versions.targetSdk
-        versionCode 2011
-        versionName "2.0.1"
+        versionCode 2012
+        versionName "2.0.2"
         testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
         multiDexEnabled true
     }

app/src/main/java/chat/rocket/android/authentication/login/presentation/LoginPresenter.kt

@@ -8,7 +8,6 @@ import chat.rocket.android.infrastructure.LocalRepository
 import chat.rocket.android.server.domain.*
 import chat.rocket.android.server.domain.model.Account
 import chat.rocket.android.server.infraestructure.RocketChatClientFactory
-import chat.rocket.android.server.presentation.CheckServerPresenter
 import chat.rocket.android.util.extensions.*
 import chat.rocket.android.util.retryIO
 import chat.rocket.common.RocketChatAuthException
@@ -31,24 +30,24 @@ private const val SERVICE_NAME_GITHUB = "github"
 private const val SERVICE_NAME_GOOGLE = "google"
 private const val SERVICE_NAME_LINKEDIN = "linkedin"
 private const val SERVICE_NAME_GILAB = "gitlab"
+private const val SERVICE_NAME_FACEBOOK = "facebook"
 
-class LoginPresenter @Inject constructor(private val view: LoginView,
-                                         private val strategy: CancelStrategy,
-                                         private val navigator: AuthenticationNavigator,
-                                         private val tokenRepository: TokenRepository,
-                                         private val localRepository: LocalRepository,
-                                         private val getAccountsInteractor: GetAccountsInteractor,
-                                         private val settingsInteractor: GetSettingsInteractor,
-                                         serverInteractor: GetCurrentServerInteractor,
-                                         private val saveAccountInteractor: SaveAccountInteractor,
-                                         private val factory: RocketChatClientFactory)
-    : CheckServerPresenter(strategy, factory, view) {
+class LoginPresenter @Inject constructor(
+    private val view: LoginView,
+    private val strategy: CancelStrategy,
+    private val navigator: AuthenticationNavigator,
+    private val tokenRepository: TokenRepository,
+    private val localRepository: LocalRepository,
+    private val getAccountsInteractor: GetAccountsInteractor,
+    private val settingsInteractor: GetSettingsInteractor,
+    serverInteractor: GetCurrentServerInteractor,
+    private val saveAccountInteractor: SaveAccountInteractor,
+    private val factory: RocketChatClientFactory
+) {
     // TODO - we should validate the current server when opening the app, and have a nonnull get()
     private val currentServer = serverInteractor.get()!!
     private lateinit var client: RocketChatClient
     private lateinit var settings: PublicSettings
-    //private val client: RocketChatClient = factory.create(currentServer)
-    //private val settings: PublicSettings = settingsInteractor.get(currentServer)
     private lateinit var usernameOrEmail: String
     private lateinit var password: String
     private lateinit var credentialToken: String
@@ -62,7 +61,6 @@ class LoginPresenter @Inject constructor(private val view: LoginView,
         setupUserRegistrationView()
         setupCasView()
         setupOauthServicesView()
-        checkServerInfo(currentServer)
     }
 
     fun authenticateWithUserAndPassword(usernameOrEmail: String, password: String) {
@@ -92,25 +90,14 @@ class LoginPresenter @Inject constructor(private val view: LoginView,
         doAuthentication(TYPE_LOGIN_OAUTH)
     }
 
-    fun authenticadeWithDeepLink(deepLinkInfo: LoginDeepLinkInfo) {
+    fun authenticateWithDeepLink(deepLinkInfo: LoginDeepLinkInfo) {
         val serverUrl = deepLinkInfo.url
         setupConnectionInfo(serverUrl)
         deepLinkUserId = deepLinkInfo.userId
         deepLinkToken = deepLinkInfo.token
         tokenRepository.save(serverUrl, Token(deepLinkUserId, deepLinkToken))
-        launchUI(strategy) {
-            try {
-                val version = checkServerVersion(serverUrl).await()
-                when (version) {
-                    is Version.OutOfDateError -> {
-                        view.blockAndAlertNotRequiredVersion()
-                    }
-                    else -> doAuthentication(TYPE_LOGIN_DEEP_LINK)
-                }
-            } catch (ex: Exception) {
-                Timber.d(ex, "Error performing deep link login")
-            }
-        }
+
+        doAuthentication(TYPE_LOGIN_DEEP_LINK)
     }
 
     private fun setupConnectionInfo(serverUrl: String) {
@@ -156,9 +143,12 @@ class LoginPresenter @Inject constructor(private val view: LoginView,
                     var totalSocialAccountsEnabled = 0
 
                     if (settings.isFacebookAuthenticationEnabled()) {
-//                        //TODO: Remove until we have this implemented
-//                        view.enableLoginByFacebook()
-//                        totalSocialAccountsEnabled++
+                        val clientId = getOauthClientId(services, SERVICE_NAME_FACEBOOK)
+                        if (clientId != null) {
+                            view.setupFacebookButtonListener(OauthHelper.getFacebookOauthUrl(clientId, currentServer, state), state)
+                            view.enableLoginByFacebook()
+                            totalSocialAccountsEnabled++
+                        }
                     }
                     if (settings.isGithubAuthenticationEnabled()) {
                         val clientId = getOauthClientId(services, SERVICE_NAME_GITHUB)
@@ -291,7 +281,7 @@ class LoginPresenter @Inject constructor(private val view: LoginView,
 
     private fun getOauthClientId(listMap: List<Map<String, String>>, serviceName: String): String? {
         return listMap.find { map -> map.containsValue(serviceName) }
-                ?.get("appId")
+            ?.get("appId")
     }
 
     private suspend fun saveAccount(username: String) {

app/src/main/java/chat/rocket/android/authentication/login/presentation/LoginView.kt

@@ -4,7 +4,7 @@ import chat.rocket.android.authentication.server.presentation.VersionCheckView
 import chat.rocket.android.core.behaviours.LoadingView
 import chat.rocket.android.core.behaviours.MessageView
 
-interface LoginView : LoadingView, MessageView, VersionCheckView {
+interface LoginView : LoadingView, MessageView {
 
     /**
      * Shows the form view (i.e the username/email and password fields) if it is enabled by the server settings.
@@ -145,6 +145,14 @@ interface LoginView : LoadingView, MessageView, VersionCheckView {
      */
     fun setupLinkedinButtonListener(linkedinUrl: String, state: String)
 
+    /**
+     * Setups the Facebook button when tapped.
+     *
+     * @param facebookOauthUrl The Facebook OAuth URL to authenticate with.
+     * @param state A random string generated by the app, which you'll verify later (to protect against forgery attacks).
+     */
+    fun setupFacebookButtonListener(facebookOauthUrl: String, state: String)
+
     /**
      * Shows the "login by Meteor" view if it is enable by the server settings.
      */

app/src/main/java/chat/rocket/android/authentication/login/ui/LoginFragment.kt

@@ -72,7 +72,7 @@ class LoginFragment : Fragment(), LoginView {
         }
 
         deepLinkInfo?.let {
-            presenter.authenticadeWithDeepLink(it)
+            presenter.authenticateWithDeepLink(it)
         }.ifNull {
             presenter.setupView()
         }
@@ -261,6 +261,15 @@ class LoginFragment : Fragment(), LoginView {
         }
     }
 
+    override fun setupFacebookButtonListener(facebookOauthUrl: String, state: String) {
+        ui { activity ->
+            button_facebook.setOnClickListener {
+                startActivityForResult(activity.oauthWebViewIntent(facebookOauthUrl, state), REQUEST_CODE_FOR_OAUTH)
+                activity.overridePendingTransition(R.anim.slide_up, R.anim.hold)
+            }
+        }
+    }
+
     override fun enableLoginByGithub() {
         ui {
             button_github.isClickable = true
@@ -370,27 +379,6 @@ class LoginFragment : Fragment(), LoginView {
         }
     }
 
-    override fun alertNotRecommendedVersion() {
-        ui {
-            AlertDialog.Builder(it)
-                    .setMessage(getString(R.string.msg_ver_not_recommended, BuildConfig.RECOMMENDED_SERVER_VERSION))
-                    .setPositiveButton(R.string.msg_ok, null)
-                    .create()
-                    .show()
-        }
-    }
-
-    override fun blockAndAlertNotRequiredVersion() {
-        ui {
-            AlertDialog.Builder(it)
-                    .setMessage(getString(R.string.msg_ver_not_minimum, BuildConfig.REQUIRED_SERVER_VERSION))
-                    .setOnDismissListener { activity?.onBackPressed() }
-                    .setPositiveButton(R.string.msg_ok, null)
-                    .create()
-                    .show()
-        }
-    }
-
     private fun showRemainingSocialAccountsView() {
         social_accounts_container.postDelayed(300) {
             ui {

app/src/main/java/chat/rocket/android/authentication/server/presentation/ServerPresenter.kt

@@ -7,9 +7,10 @@ import chat.rocket.android.core.lifecycle.CancelStrategy
 import chat.rocket.android.server.domain.GetAccountsInteractor
 import chat.rocket.android.server.domain.RefreshSettingsInteractor
 import chat.rocket.android.server.domain.SaveCurrentServerInteractor
+import chat.rocket.android.server.infraestructure.RocketChatClientFactory
+import chat.rocket.android.server.presentation.CheckServerPresenter
 import chat.rocket.android.util.extensions.isValidUrl
 import chat.rocket.android.util.extensions.launchUI
-import chat.rocket.common.util.ifNull
 import javax.inject.Inject
 
 class ServerPresenter @Inject constructor(private val view: ServerView,
@@ -17,7 +18,18 @@ class ServerPresenter @Inject constructor(private val view: ServerView,
                                           private val navigator: AuthenticationNavigator,
                                           private val serverInteractor: SaveCurrentServerInteractor,
                                           private val refreshSettingsInteractor: RefreshSettingsInteractor,
-                                          private val getAccountsInteractor: GetAccountsInteractor) {
+                                          private val getAccountsInteractor: GetAccountsInteractor,
+                                          factory: RocketChatClientFactory
+) : CheckServerPresenter(strategy, factory, view) {
+
+    fun checkServer(server: String) {
+        if (!server.isValidUrl()) {
+            view.showInvalidServerUrlMessage()
+        } else {
+            view.showLoading()
+            checkServerInfo(server)
+        }
+    }
 
     fun connect(server: String) {
         connectToServer(server) {
@@ -25,7 +37,7 @@ class ServerPresenter @Inject constructor(private val view: ServerView,
         }
     }
 
-    fun connectToServer(server: String, block: () -> Unit) {
+    private fun connectToServer(server: String, block: () -> Unit) {
         if (!server.isValidUrl()) {
             view.showInvalidServerUrlMessage()
         } else {

app/src/main/java/chat/rocket/android/authentication/server/presentation/ServerView.kt

@@ -3,7 +3,7 @@ package chat.rocket.android.authentication.server.presentation
 import chat.rocket.android.core.behaviours.LoadingView
 import chat.rocket.android.core.behaviours.MessageView
 
-interface ServerView : LoadingView, MessageView {
+interface ServerView : LoadingView, MessageView, VersionCheckView {
 
     /**
      * Shows an invalid server URL message.

app/src/main/java/chat/rocket/android/authentication/server/presentation/VersionCheckView.kt

@@ -10,4 +10,9 @@ interface VersionCheckView {
      * Block user to proceed and alert him due to server having an unsupported server version.
      */
     fun blockAndAlertNotRequiredVersion()
+
+    /**
+     * Do some action if version is ok. This is optional.
+     */
+    fun versionOk() {}
 }
\ No newline at end of file

app/src/main/java/chat/rocket/android/authentication/server/ui/ServerFragment.kt

 package chat.rocket.android.authentication.server.ui
 
+import android.app.AlertDialog
+import android.net.Uri
 import android.os.Bundle
 import android.support.v4.app.Fragment
 import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
 import android.view.ViewTreeObserver
+import chat.rocket.android.BuildConfig
 import chat.rocket.android.R
 import chat.rocket.android.authentication.domain.model.LoginDeepLinkInfo
 import chat.rocket.android.authentication.server.presentation.ServerPresenter
 import chat.rocket.android.authentication.server.presentation.ServerView
 import chat.rocket.android.helper.KeyboardHelper
 import chat.rocket.android.util.extensions.*
+import chat.rocket.common.util.ifNull
 import dagger.android.support.AndroidSupportInjection
 import kotlinx.android.synthetic.main.fragment_authentication_server.*
 import javax.inject.Inject
 
 class ServerFragment : Fragment(), ServerView {
-    @Inject lateinit var presenter: ServerPresenter
+    @Inject
+    lateinit var presenter: ServerPresenter
     private var deepLinkInfo: LoginDeepLinkInfo? = null
     private val layoutListener = ViewTreeObserver.OnGlobalLayoutListener {
         text_server_url.isCursorVisible = KeyboardHelper.isSoftKeyboardShown(relative_layout.rootView)
@@ -49,6 +54,8 @@ class ServerFragment : Fragment(), ServerView {
         setupOnClickListener()
 
         deepLinkInfo?.let {
+            val uri = Uri.parse(it.url)
+            uri?.let { text_server_protocol.hintContent = it.host }
             presenter.deepLink(it)
         }
     }
@@ -74,7 +81,7 @@ class ServerFragment : Fragment(), ServerView {
         }
     }
 
-    override fun showMessage(resId: Int){
+    override fun showMessage(resId: Int) {
         ui {
             showToast(resId)
         }
@@ -90,15 +97,60 @@ class ServerFragment : Fragment(), ServerView {
         showMessage(getString(R.string.msg_generic_error))
     }
 
+    override fun alertNotRecommendedVersion() {
+        ui {
+            hideLoading()
+            AlertDialog.Builder(it)
+                .setMessage(getString(R.string.msg_ver_not_recommended, BuildConfig.RECOMMENDED_SERVER_VERSION))
+                .setPositiveButton(R.string.msg_ok, { _, _ ->
+                    performConnect()
+                })
+                .create()
+                .show()
+        }
+    }
+
+    override fun blockAndAlertNotRequiredVersion() {
+        ui {
+            hideLoading()
+            AlertDialog.Builder(it)
+                .setMessage(getString(R.string.msg_ver_not_minimum, BuildConfig.REQUIRED_SERVER_VERSION))
+                .setPositiveButton(R.string.msg_ok, null)
+                .setOnDismissListener {
+                    // reset the deeplink info, so the user can log to another server...
+                    deepLinkInfo = null
+                }
+                .create()
+                .show()
+        }
+    }
+
+    override fun versionOk() {
+        performConnect()
+    }
+
+    private fun performConnect() {
+        ui {
+            deepLinkInfo?.let {
+                presenter.deepLink(it)
+            }.ifNull {
+                val url = text_server_url.textContent.ifEmpty(text_server_url.hintContent)
+                presenter.connect(text_server_protocol.textContent + url)
+            }
+        }
+    }
+
     private fun enableUserInput(value: Boolean) {
         button_connect.isEnabled = value
         text_server_url.isEnabled = value
     }
 
     private fun setupOnClickListener() {
-        button_connect.setOnClickListener {
-            val url = text_server_url.textContent.ifEmpty(text_server_url.hintContent)
-            presenter.connect(text_server_protocol.textContent + url)
+        ui {
+            button_connect.setOnClickListener {
+                val url = text_server_url.textContent.ifEmpty(text_server_url.hintContent)
+                presenter.checkServer(text_server_protocol.textContent + url)
+            }
         }
     }
 }
\ No newline at end of file

app/src/main/java/chat/rocket/android/authentication/ui/AuthenticationActivity.kt

@@ -34,7 +34,7 @@ class AuthenticationActivity : AppCompatActivity(), HasSupportFragmentInjector {
         val deepLinkInfo = intent.getLoginDeepLinkInfo()
         launch(UI + job) {
             val newServer = intent.getBooleanExtra(INTENT_ADD_NEW_SERVER, false)
-            // if we got authenticadeWithDeepLink information, pass true to newServer also
+            // if we got authenticateWithDeepLink information, pass true to newServer also
             presenter.loadCredentials(newServer || deepLinkInfo != null) { authenticated ->
                 if (!authenticated) {
                     showServerInput(savedInstanceState, deepLinkInfo)

app/src/main/java/chat/rocket/android/chatroom/di/ChatRoomFragmentModule.kt

@@ -15,9 +15,6 @@ import kotlinx.coroutines.experimental.Job
 @PerFragment
 class ChatRoomFragmentModule {
 
-    @Provides
-    fun provideChatRoomNavigator(activity: ChatRoomActivity) = ChatRoomNavigator(activity)
-
     @Provides
     fun chatRoomView(frag: ChatRoomFragment): ChatRoomView {
         return frag

app/src/main/java/chat/rocket/android/chatroom/di/ChatRoomModule.kt

+package chat.rocket.android.chatroom.di
+
+import chat.rocket.android.chatroom.presentation.ChatRoomNavigator
+import chat.rocket.android.chatroom.ui.ChatRoomActivity
+import chat.rocket.android.dagger.scope.PerActivity
+import dagger.Module
+import dagger.Provides
+
+@Module
+@PerActivity
+class ChatRoomModule {
+    @Provides
+    fun provideChatRoomNavigator(activity: ChatRoomActivity) = ChatRoomNavigator(activity)
+}
\ No newline at end of file

app/src/main/java/chat/rocket/android/chatroom/presentation/ChatRoomNavigator.kt

@@ -3,6 +3,7 @@ package chat.rocket.android.chatroom.presentation
 import chat.rocket.android.R
 import chat.rocket.android.chatroom.ui.ChatRoomActivity
 import chat.rocket.android.members.ui.newInstance
+import chat.rocket.android.server.ui.changeServerIntent
 import chat.rocket.android.util.extensions.addFragmentBackStack
 
 class ChatRoomNavigator(internal val activity: ChatRoomActivity) {
@@ -12,4 +13,9 @@ class ChatRoomNavigator(internal val activity: ChatRoomActivity) {
             newInstance(chatRoomId, chatRoomType)
         }
     }
+
+    fun toNewServer() {
+        activity.startActivity(activity.changeServerIntent())
+        activity.finish()
+    }
 }
\ No newline at end of file

app/src/main/java/chat/rocket/android/chatroom/presentation/ChatRoomPresenter.kt

@@ -10,6 +10,7 @@ import chat.rocket.android.chatroom.viewmodel.ViewModelMapper
 import chat.rocket.android.chatroom.viewmodel.suggestion.ChatRoomSuggestionViewModel
 import chat.rocket.android.chatroom.viewmodel.suggestion.CommandSuggestionViewModel
 import chat.rocket.android.chatroom.viewmodel.suggestion.PeopleSuggestionViewModel
+import chat.rocket.android.core.behaviours.showMessage
 import chat.rocket.android.core.lifecycle.CancelStrategy
 import chat.rocket.android.infrastructure.LocalRepository
 import chat.rocket.android.infrastructure.username
@@ -172,7 +173,7 @@ class ChatRoomPresenter @Inject constructor(private val view: ChatRoomView,
         launchUI(strategy) {
             view.showLoading()
             try {
-                val fileName = async { uriInteractor.getFileName(uri) }.await()
+                val fileName = async { uriInteractor.getFileName(uri) }.await() ?: uri.toString()
                 val mimeType = async { uriInteractor.getMimeType(uri) }.await()
                 val fileSize = async { uriInteractor.getFileSize(uri) }.await()
                 val maxFileSize = settings.uploadMaxFileSize()
@@ -189,12 +190,11 @@ class ChatRoomPresenter @Inject constructor(private val view: ChatRoomView,
                         }
                     }
                 }
-            } catch (ex: RocketChatException) {
-                Timber.d(ex)
-                ex.message?.let {
-                    view.showMessage(it)
-                }.ifNull {
-                    view.showGenericErrorMessage()
+            } catch (ex: Exception) {
+                Timber.d(ex, "Error uploading file")
+                when(ex) {
+                    is RocketChatException -> view.showMessage(ex)
+                    else -> view.showGenericErrorMessage()
                 }
             } finally {
                 view.hideLoading()

app/src/main/java/chat/rocket/android/chatroom/ui/ChatRoomActivity.kt

@@ -8,12 +8,14 @@ import android.os.Bundle
 import android.support.v4.app.Fragment
 import android.support.v7.app.AppCompatActivity
 import chat.rocket.android.R
+import chat.rocket.android.chatroom.presentation.ChatRoomNavigator
 import chat.rocket.android.server.domain.GetCurrentServerInteractor
 import chat.rocket.android.server.infraestructure.ConnectionManagerFactory
 import chat.rocket.android.util.extensions.addFragment
 import chat.rocket.android.util.extensions.textContent
 import chat.rocket.common.model.RoomType
 import chat.rocket.common.model.roomTypeOf
+import chat.rocket.common.util.ifNull
 import dagger.android.AndroidInjection
 import dagger.android.AndroidInjector
 import dagger.android.DispatchingAndroidInjector
@@ -51,6 +53,7 @@ class ChatRoomActivity : AppCompatActivity(), HasSupportFragmentInjector {
 
     // TODO - workaround for now... We will move to a single activity
     @Inject lateinit var serverInteractor: GetCurrentServerInteractor
+    @Inject lateinit var navigator: ChatRoomNavigator
     @Inject lateinit var managerFactory: ConnectionManagerFactory
 
     private lateinit var chatRoomId: String
@@ -66,7 +69,13 @@ class ChatRoomActivity : AppCompatActivity(), HasSupportFragmentInjector {
         setContentView(R.layout.activity_chat_room)
 
         // Workaround for when we are coming to the app via the recents app and the app was killed.
-        managerFactory.create(serverInteractor.get()!!).connect()
+        val serverUrl = serverInteractor.get()
+        if (serverUrl != null) {
+            managerFactory.create(serverUrl).connect()
+        } else {
+            navigator.toNewServer()
+            return
+        }
 
         chatRoomId = intent.getStringExtra(INTENT_CHAT_ROOM_ID)
         requireNotNull(chatRoomId) { "no chat_room_id provided in Intent extras" }

app/src/main/java/chat/rocket/android/dagger/module/ActivityBuilder.kt

@@ -8,6 +8,7 @@ import chat.rocket.android.authentication.signup.di.SignupFragmentProvider
 import chat.rocket.android.authentication.twofactor.di.TwoFAFragmentProvider
 import chat.rocket.android.authentication.ui.AuthenticationActivity
 import chat.rocket.android.chatroom.di.ChatRoomFragmentProvider
+import chat.rocket.android.chatroom.di.ChatRoomModule
 import chat.rocket.android.chatroom.di.PinnedMessagesFragmentProvider
 import chat.rocket.android.chatroom.ui.ChatRoomActivity
 import chat.rocket.android.chatroom.ui.PinnedMessagesActivity
@@ -45,7 +46,9 @@ abstract class ActivityBuilder {
     abstract fun bindMainActivity(): MainActivity
 
     @PerActivity
-    @ContributesAndroidInjector(modules = [ChatRoomFragmentProvider::class, MembersFragmentProvider::class])
+    @ContributesAndroidInjector(modules = [ChatRoomModule::class,
+        ChatRoomFragmentProvider::class,
+        MembersFragmentProvider::class])
     abstract fun bindChatRoomActivity(): ChatRoomActivity
 
     @PerActivity

app/src/main/java/chat/rocket/android/helper/OauthHelper.kt

@@ -67,4 +67,21 @@ object OauthHelper {
                 "&response_type=code" +
                 "&scope=read_user"
     }
-}
\ No newline at end of file
+
+    /**
+     * Returns the Facebook Oauth URL.
+     *
+     * @param clientId The Facebook client ID.
+     * @param serverUrl The server URL.
+     * @param state An unguessable random string used to protect against forgery attacks.
+     * @return The Facebook Oauth URL.
+     */
+    fun getFacebookOauthUrl(clientId: String, serverUrl: String, state: String): String {
+        return  "https://facebook.com/v2.9/dialog/oauth" +
+                "?client_id=$clientId" +
+                "&redirect_uri=${serverUrl.removeTrailingSlash()}/_oauth/facebook?close" +
+                "&state=$state" +
+                "&response_type=code" +
+                "&scope=email"
+    }
+}

app/src/main/java/chat/rocket/android/profile/presentation/ProfilePresenter.kt

@@ -28,14 +28,21 @@ class ProfilePresenter @Inject constructor(private val view: ProfileView,
             view.showLoading()
             try {
                 val myself = retryIO("me") { client.me() }
-                myselfId = myself.id!!
-                val avatarUrl = serverUrl.avatarUrl(myself.username!!)
-                view.showProfile(
-                        avatarUrl,
-                        myself.name ?: "",
-                        myself.username ?: "",
-                        myself.emails?.get(0)?.address!!
-                )
+                val id = myself.id
+                val username = myself.username
+                if (id == null || username == null) {
+                    view.showGenericErrorMessage()
+                } else {
+                    myselfId = id
+                    val avatarUrl = serverUrl.avatarUrl(username)
+                    val email = myself.emails?.getOrNull(0)?.address
+                    view.showProfile(
+                            avatarUrl,
+                            myself.name ?: "",
+                            myself.username ?: "",
+                            email
+                    )
+                }
             } catch (exception: RocketChatException) {
                 view.showMessage(exception)
             } finally {

app/src/main/java/chat/rocket/android/profile/presentation/ProfileView.kt

@@ -2,7 +2,6 @@ package chat.rocket.android.profile.presentation
 
 import chat.rocket.android.core.behaviours.LoadingView
 import chat.rocket.android.core.behaviours.MessageView
-import chat.rocket.core.model.Myself
 
 interface ProfileView : LoadingView, MessageView {
 
@@ -14,7 +13,7 @@ interface ProfileView : LoadingView, MessageView {
      * @param username The user username.
      * @param email The user email.
      */
-    fun showProfile(avatarUrl: String, name: String, username: String, email: String)
+    fun showProfile(avatarUrl: String, name: String, username: String, email: String?)
 
     /**
      * Shows a profile update successfully message

app/src/main/java/chat/rocket/android/profile/ui/ProfileFragment.kt

@@ -55,18 +55,18 @@ class ProfileFragment : Fragment(), ProfileView, ActionMode.Callback {
         super.onDestroyView()
     }
 
-    override fun showProfile(avatarUrl: String, name: String, username: String, email: String) {
+    override fun showProfile(avatarUrl: String, name: String, username: String, email: String?) {
         ui {
             image_avatar.setImageURI(avatarUrl)
 
             text_name.textContent = name
             text_username.textContent = username
-            text_email.textContent = email
+            text_email.textContent = email ?: ""
             text_avatar_url.textContent = ""
 
             currentName = name
             currentUsername = username
-            currentEmail = email
+            currentEmail = email ?: ""
             currentAvatar = avatarUrl
 
             profile_container.setVisible(true)

app/src/main/java/chat/rocket/android/server/presentation/CheckServerPresenter.kt

@@ -18,17 +18,18 @@ abstract class CheckServerPresenter constructor(private val strategy: CancelStra
                                                 private val factory: RocketChatClientFactory,
                                                 private val view: VersionCheckView) {
     private lateinit var currentServer: String
-    private val client: RocketChatClient by lazy {
-        factory.create(currentServer)
-    }
+    private lateinit var client: RocketChatClient
 
     internal fun checkServerInfo(serverUrl: String): Job {
         return launchUI(strategy) {
             try {
+                currentServer = serverUrl
+                client = factory.create(currentServer)
                 val version = checkServerVersion(serverUrl).await()
                 when (version) {
                     is Version.VersionOk -> {
                         Timber.i("Your version is nice! (Requires: 0.62.0, Yours: ${version.version})")
+                        view.versionOk()
                     }
                     is Version.RecommendedVersionWarning -> {
                         Timber.i("Your server ${version.version} is bellow recommended version ${BuildConfig.RECOMMENDED_SERVER_VERSION}")

app/src/main/java/chat/rocket/android/server/ui/ChangeServerActivity.kt

@@ -41,7 +41,7 @@ private const val INTENT_SERVER_URL = "INTENT_SERVER_URL"
 private const val INTENT_CHAT_ROOM_NAME = "INTENT_CHAT_ROOM_NAME"
 private const val INTENT_CHAT_ROOM_TYPE = "INTENT_CHAT_ROOM_TYPE"
 
-fun Context.changeServerIntent(serverUrl: String?): Intent {
+fun Context.changeServerIntent(serverUrl: String? = null): Intent {
     return Intent(this, ChangeServerActivity::class.java).apply {
         serverUrl?.let { url ->
             putExtra(INTENT_SERVER_URL, url)