Merge pull request #186 from vector-im/feature/crypto_up

Crypto work

matrix-sdk-android/src/main/java/im/vector/matrix/android/internal/crypto/verification/SASVerificationTransaction.kt

@@ -223,13 +223,17 @@ internal abstract class SASVerificationTransaction(
             cancel(CancelCode.MismatchedKeys)
             return
         }
+
+        val verifiedDevices = ArrayList<String>()
+
         //cannot be empty because it has been validated
         theirMac!!.mac!!.keys.forEach {
             val keyIDNoPrefix = if (it.startsWith("ed25519:")) it.substring("ed25519:".length) else it
             val otherDeviceKey = otherUserKnownDevices?.get(keyIDNoPrefix)?.fingerprint()
             if (otherDeviceKey == null) {
-                cancel(CancelCode.MismatchedKeys)
+                Timber.e("Verification: Could not find device $keyIDNoPrefix to verify")
-                return
+                //just ignore and continue
+                return@forEach
             }
             val mac = macUsingAgreedMethod(otherDeviceKey, baseInfo + it)
             if (mac != theirMac?.mac?.get(it)) {
@@ -237,13 +241,21 @@ internal abstract class SASVerificationTransaction(
                 cancel(CancelCode.MismatchedKeys)
                 return
             }
+            verifiedDevices.add(keyIDNoPrefix)
         }
 
-        setDeviceVerified(
+        // if none of the keys could be verified, then error because the app
-                otherDeviceId ?: "",
+        // should be informed about that
-                otherUserId)
+        if (verifiedDevices.isEmpty()) {
+            Timber.e("Verification: No devices verified")
+            cancel(CancelCode.MismatchedKeys)
+            return
+        }
 
-        state = SasVerificationTxState.Verified
+        //TODO what if the otherDevice is not in this list? and should we
+        verifiedDevices.forEach {
+            setDeviceVerified(it, otherUserId)
+        }
     }
 
     private fun setDeviceVerified(deviceId: String, userId: String) {

vector/src/main/java/im/vector/riotredesign/features/crypto/keysbackup/setup/KeysBackupSetupActivity.kt

@@ -22,7 +22,6 @@ import androidx.core.view.isVisible
 import androidx.fragment.app.FragmentManager
 import androidx.lifecycle.Observer
 import androidx.lifecycle.ViewModelProviders
-import im.vector.fragments.keysbackup.setup.KeysBackupSetupSharedViewModel
 import im.vector.matrix.android.api.MatrixCallback
 import im.vector.riotredesign.R
 import im.vector.riotredesign.core.dialogs.ExportKeysDialog
@@ -87,6 +86,17 @@ class KeysBackupSetupActivity : SimpleFragmentActivity() {
                     setResult(RESULT_OK, resultIntent)
                     finish()
                 }
+                KeysBackupSetupSharedViewModel.NAVIGATE_PROMPT_REPLACE -> {
+                    AlertDialog.Builder(this)
+                            .setTitle(R.string.keys_backup_setup_override_backup_prompt_tile)
+                            .setMessage(R.string.keys_backup_setup_override_backup_prompt_description)
+                            .setPositiveButton(R.string.keys_backup_setup_override_replace) { _, _ ->
+                                viewModel.forceCreateKeyBackup(this)
+                            }.setNegativeButton(R.string.keys_backup_setup_override_stop) { _, _ ->
+                                viewModel.stopAndKeepAfterDetectingExistingOnServer()
+                            }
+                            .show()
+                }
                 KeysBackupSetupSharedViewModel.NAVIGATE_MANUAL_EXPORT  -> {
                     exportKeysManually()
                 }

vector/src/main/java/im/vector/riotredesign/features/crypto/keysbackup/setup/KeysBackupSetupSharedViewModel.kt

@@ -14,7 +14,7 @@
  * limitations under the License.
  */
 
-package im.vector.fragments.keysbackup.setup
+package im.vector.riotredesign.features.crypto.keysbackup.setup
 
 import android.content.Context
 import androidx.lifecycle.MutableLiveData
@@ -26,6 +26,7 @@ import im.vector.matrix.android.api.session.Session
 import im.vector.matrix.android.api.session.crypto.keysbackup.KeysBackupService
 import im.vector.matrix.android.internal.crypto.keysbackup.model.MegolmBackupCreationInfo
 import im.vector.matrix.android.internal.crypto.keysbackup.model.rest.KeysVersion
+import im.vector.matrix.android.internal.crypto.keysbackup.model.rest.KeysVersionResult
 import im.vector.riotredesign.R
 import im.vector.riotredesign.core.platform.WaitingViewData
 import im.vector.riotredesign.core.utils.LiveEvent
@@ -39,6 +40,7 @@ class KeysBackupSetupSharedViewModel : ViewModel() {
     companion object {
         const val NAVIGATE_TO_STEP_2 = "NAVIGATE_TO_STEP_2"
         const val NAVIGATE_TO_STEP_3 = "NAVIGATE_TO_STEP_3"
+        const val NAVIGATE_PROMPT_REPLACE = "NAVIGATE_PROMPT_REPLACE"
         const val NAVIGATE_FINISH = "NAVIGATE_FINISH"
         const val NAVIGATE_MANUAL_EXPORT = "NAVIGATE_MANUAL_EXPORT"
     }
@@ -123,15 +125,8 @@ class KeysBackupSetupSharedViewModel : ViewModel() {
                             megolmBackupCreationInfo = data
                             copyHasBeenMade = false
 
-                            val keyBackup = session?.getKeysBackupService()
+                            val keyBackup = session.getKeysBackupService()
-                            if (keyBackup != null) {
                             createKeysBackup(context, keyBackup)
-                            } else {
-                                loadingStatus.value = null
-
-                                isCreatingBackupVersion.value = false
-                                prepareRecoverFailError.value = Exception()
-                            }
                         }
 
                         override fun onFailure(failure: Throwable) {
@@ -149,12 +144,44 @@ class KeysBackupSetupSharedViewModel : ViewModel() {
         }
     }
 
-    private fun createKeysBackup(context: Context, keysBackup: KeysBackupService) {
+    fun forceCreateKeyBackup(context: Context) {
+        val keyBackup = session.getKeysBackupService()
+        createKeysBackup(context, keyBackup, true)
+    }
+
+    fun stopAndKeepAfterDetectingExistingOnServer() {
+        loadingStatus.value = null
+        navigateEvent.value = LiveEvent(NAVIGATE_FINISH)
+        session.getKeysBackupService().checkAndStartKeysBackup()
+    }
+
+    private fun createKeysBackup(context: Context, keysBackup: KeysBackupService, forceOverride: Boolean = false) {
         loadingStatus.value = WaitingViewData(context.getString(R.string.keys_backup_setup_creating_backup), isIndeterminate = true)
 
         creatingBackupError.value = null
-        keysBackup.createKeysBackupVersion(megolmBackupCreationInfo!!, object : MatrixCallback<KeysVersion> {
 
+        keysBackup.getCurrentVersion(object : MatrixCallback<KeysVersionResult?> {
+            override fun onSuccess(data: KeysVersionResult?) {
+                if (data?.version.isNullOrBlank() || forceOverride) {
+                    processOnCreate()
+                } else {
+                    loadingStatus.value = null
+                    // we should prompt
+                    isCreatingBackupVersion.value = false
+                    navigateEvent.value = LiveEvent(NAVIGATE_PROMPT_REPLACE)
+                }
+            }
+
+            override fun onFailure(failure: Throwable) {
+                Timber.e(failure, "## createKeyBackupVersion")
+                loadingStatus.value = null
+
+                isCreatingBackupVersion.value = false
+                creatingBackupError.value = failure
+            }
+
+            fun processOnCreate() {
+                keysBackup.createKeysBackupVersion(megolmBackupCreationInfo!!, object : MatrixCallback<KeysVersion> {
                     override fun onSuccess(data: KeysVersion) {
                         loadingStatus.value = null
 
@@ -172,5 +199,6 @@ class KeysBackupSetupSharedViewModel : ViewModel() {
                     }
                 })
             }
-
+        })
+    }
 }

vector/src/main/java/im/vector/riotredesign/features/crypto/keysbackup/setup/KeysBackupSetupStep1Fragment.kt

@@ -24,7 +24,6 @@ import androidx.lifecycle.Observer
 import androidx.lifecycle.ViewModelProviders
 import butterknife.BindView
 import butterknife.OnClick
-import im.vector.fragments.keysbackup.setup.KeysBackupSetupSharedViewModel
 import im.vector.riotredesign.R
 import im.vector.riotredesign.core.platform.VectorBaseFragment
 import im.vector.riotredesign.core.utils.LiveEvent

vector/src/main/java/im/vector/riotredesign/features/crypto/keysbackup/setup/KeysBackupSetupStep2Fragment.kt

@@ -30,7 +30,6 @@ import butterknife.OnClick
 import butterknife.OnTextChanged
 import com.google.android.material.textfield.TextInputLayout
 import com.nulabinc.zxcvbn.Zxcvbn
-import im.vector.fragments.keysbackup.setup.KeysBackupSetupSharedViewModel
 import im.vector.riotredesign.R
 import im.vector.riotredesign.core.extensions.showPassword
 import im.vector.riotredesign.core.platform.VectorBaseFragment

vector/src/main/java/im/vector/riotredesign/features/crypto/keysbackup/setup/KeysBackupSetupStep3Fragment.kt

@@ -29,7 +29,6 @@ import arrow.core.Try
 import butterknife.BindView
 import butterknife.OnClick
 import com.google.android.material.bottomsheet.BottomSheetDialog
-import im.vector.fragments.keysbackup.setup.KeysBackupSetupSharedViewModel
 import im.vector.riotredesign.R
 import im.vector.riotredesign.core.files.addEntryToDownloadManager
 import im.vector.riotredesign.core.files.writeToFile

vector/src/main/java/im/vector/riotredesign/features/home/HomeActivity.kt

@@ -46,6 +46,8 @@ import kotlinx.android.synthetic.main.activity_home.*
 import org.koin.android.ext.android.inject
 import org.koin.android.scope.ext.android.bindScope
 import org.koin.android.scope.ext.android.getOrCreateScope
+import im.vector.riotredesign.features.workers.signout.SignOutViewModel
+
 
 
 class HomeActivity : VectorBaseActivity(), ToolbarConfigurable {
@@ -130,6 +132,9 @@ class HomeActivity : VectorBaseActivity(), ToolbarConfigurable {
                     .setNegativeButton(R.string.no) { _, _ -> BugReporter.deleteCrashFile(this) }
                     .show()
         }
+
+        //Force remote backup state update to update the banner if needed
+        ViewModelProviders.of(this).get(SignOutViewModel::class.java).refreshRemoteStateIfNeeded()
     }
 
     override fun configure(toolbar: Toolbar) {

vector/src/main/java/im/vector/riotredesign/features/workers/signout/SignOutViewModel.kt

@@ -81,6 +81,12 @@ class SignOutViewModel : ViewModel(), KeysBackupStateListener {
         keysBackupState.value = newState
     }
 
+    fun refreshRemoteStateIfNeeded() {
+        if (keysBackupState.value == KeysBackupState.Disabled) {
+            mxSession?.getKeysBackupService()?.checkAndStartKeysBackup()
+        }
+    }
+
     companion object {
         /**
          * The backup check on logout flow has to be displayed if there are keys in the store, and the keys backup state is not Ready