Refactor package structure (#1233)

* idea: default test runner to Gradle

* Kick off package structure revamp

* Reparent all classes under dev.msfjarvis.aps

Signed-off-by: Harsh Shandilya <me@msfjarvis.dev>

3 files changed, 486 insertions, 0 deletions

diff --git a/app/src/main/java/dev/msfjarvis/aps/util/services/ClipboardService.kt b/app/src/main/java/dev/msfjarvis/aps/util/services/ClipboardService.kt
new file mode 100644
index 00000000..46363420
--- /dev/null
+++ b/app/src/main/java/dev/msfjarvis/aps/util/services/ClipboardService.kt
@@ -0,0 +1,183 @@
+/*
+ * Copyright © 2014-2020 The Android Password Store Authors. All Rights Reserved.
+ * SPDX-License-Identifier: GPL-3.0-only
+ */
+package dev.msfjarvis.aps.util.services
+
+import android.app.Notification
+import android.app.NotificationChannel
+import android.app.NotificationManager
+import android.app.PendingIntent
+import android.app.Service
+import android.content.ClipData
+import android.content.Intent
+import android.os.Build
+import android.os.IBinder
+import androidx.annotation.RequiresApi
+import androidx.core.app.NotificationCompat
+import androidx.core.content.getSystemService
+import com.github.ajalt.timberkt.d
+import dev.msfjarvis.aps.R
+import dev.msfjarvis.aps.util.settings.PreferenceKeys
+import dev.msfjarvis.aps.util.extensions.clipboard
+import dev.msfjarvis.aps.util.extensions.sharedPrefs
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.Job
+import kotlinx.coroutines.cancel
+import kotlinx.coroutines.delay
+import kotlinx.coroutines.isActive
+import kotlinx.coroutines.launch
+import kotlinx.coroutines.withContext
+
+class ClipboardService : Service() {
+
+    private val scope = CoroutineScope(Job() + Dispatchers.Main)
+
+    override fun onStartCommand(intent: Intent?, flags: Int, startId: Int): Int {
+        if (intent != null) {
+            when (intent.action) {
+                ACTION_CLEAR -> {
+                    clearClipboard()
+                    stopForeground(true)
+                    stopSelf()
+                    return super.onStartCommand(intent, flags, startId)
+                }
+
+                ACTION_START -> {
+                    val time = intent.getIntExtra(EXTRA_NOTIFICATION_TIME, 45)
+
+                    if (time == 0) {
+                        stopSelf()
+                    }
+
+                    createNotification(time)
+                    scope.launch {
+                        withContext(Dispatchers.IO) {
+                            startTimer(time)
+                        }
+                        withContext(Dispatchers.Main) {
+                            clearClipboard()
+                            stopForeground(true)
+                            stopSelf()
+                        }
+                    }
+                    return START_NOT_STICKY
+                }
+            }
+        }
+
+        return super.onStartCommand(intent, flags, startId)
+    }
+
+    override fun onBind(intent: Intent?): IBinder? {
+        return null
+    }
+
+    override fun onDestroy() {
+        scope.cancel()
+        super.onDestroy()
+    }
+
+    private fun clearClipboard() {
+        val deepClear = sharedPrefs.getBoolean(PreferenceKeys.CLEAR_CLIPBOARD_20X, false)
+        val clipboard = clipboard
+
+        if (clipboard != null) {
+            scope.launch {
+                d { "Clearing the clipboard" }
+                val clip = ClipData.newPlainText("pgp_handler_result_pm", "")
+                clipboard.setPrimaryClip(clip)
+                if (deepClear) {
+                    withContext(Dispatchers.IO) {
+                        repeat(20) {
+                            val count = (it * 500).toString()
+                            clipboard.setPrimaryClip(ClipData.newPlainText(count, count))
+                        }
+                    }
+                }
+            }
+        } else {
+            d { "Cannot get clipboard manager service" }
+        }
+    }
+
+    private suspend fun startTimer(showTime: Int) {
+        var current = 0
+        while (scope.isActive && current < showTime) {
+            // Block for 1s or until cancel is signalled
+            current++
+            delay(1000)
+        }
+    }
+
+    private fun createNotification(clearTime: Int) {
+        val clearTimeMs = clearTime * 1000L
+        val clearIntent = Intent(this, ClipboardService::class.java).apply {
+            action = ACTION_CLEAR
+        }
+        val pendingIntent = if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
+            PendingIntent.getForegroundService(this, 0, clearIntent, PendingIntent.FLAG_UPDATE_CURRENT)
+        } else {
+            PendingIntent.getService(this, 0, clearIntent, PendingIntent.FLAG_UPDATE_CURRENT)
+        }
+        val notification = if (Build.VERSION.SDK_INT <= Build.VERSION_CODES.M) {
+            createNotificationApi23(pendingIntent)
+        } else {
+            createNotificationApi24(pendingIntent, clearTimeMs)
+        }
+
+        createNotificationChannel()
+        startForeground(1, notification)
+    }
+
+    private fun createNotificationApi23(pendingIntent: PendingIntent): Notification {
+        return NotificationCompat.Builder(this, CHANNEL_ID)
+            .setContentTitle(getString(R.string.app_name))
+            .setContentText(getString(R.string.tap_clear_clipboard))
+            .setSmallIcon(R.drawable.ic_action_secure_24dp)
+            .setContentIntent(pendingIntent)
+            .setUsesChronometer(true)
+            .setPriority(NotificationCompat.PRIORITY_LOW)
+            .build()
+    }
+
+    @RequiresApi(Build.VERSION_CODES.N)
+    private fun createNotificationApi24(pendingIntent: PendingIntent, clearTimeMs: Long): Notification {
+        return NotificationCompat.Builder(this, CHANNEL_ID)
+            .setContentTitle(getString(R.string.app_name))
+            .setContentText(getString(R.string.tap_clear_clipboard))
+            .setSmallIcon(R.drawable.ic_action_secure_24dp)
+            .setContentIntent(pendingIntent)
+            .setUsesChronometer(true)
+            .setChronometerCountDown(true)
+            .setShowWhen(true)
+            .setWhen(System.currentTimeMillis() + clearTimeMs)
+            .setPriority(NotificationCompat.PRIORITY_LOW)
+            .build()
+    }
+
+    private fun createNotificationChannel() {
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
+            val serviceChannel = NotificationChannel(
+                CHANNEL_ID,
+                getString(R.string.app_name),
+                NotificationManager.IMPORTANCE_LOW
+            )
+            val manager = getSystemService<NotificationManager>()
+            if (manager != null) {
+                manager.createNotificationChannel(serviceChannel)
+            } else {
+                d { "Failed to create notification channel" }
+            }
+        }
+    }
+
+    companion object {
+
+        const val ACTION_START = "ACTION_START_CLIPBOARD_TIMER"
+        const val EXTRA_NOTIFICATION_TIME = "EXTRA_NOTIFICATION_TIME"
+        private const val ACTION_CLEAR = "ACTION_CLEAR_CLIPBOARD"
+        private const val CHANNEL_ID = "NotificationService"
+    }
+}
diff --git a/app/src/main/java/dev/msfjarvis/aps/util/services/OreoAutofillService.kt b/app/src/main/java/dev/msfjarvis/aps/util/services/OreoAutofillService.kt
new file mode 100644
index 00000000..3b431525
--- /dev/null
+++ b/app/src/main/java/dev/msfjarvis/aps/util/services/OreoAutofillService.kt
@@ -0,0 +1,145 @@
+/*
+ * Copyright © 2014-2020 The Android Password Store Authors. All Rights Reserved.
+ * SPDX-License-Identifier: GPL-3.0-only
+ */
+package dev.msfjarvis.aps.util.services
+
+import android.content.Context
+import android.os.Build
+import android.os.CancellationSignal
+import android.service.autofill.AutofillService
+import android.service.autofill.FillCallback
+import android.service.autofill.FillRequest
+import android.service.autofill.FillResponse
+import android.service.autofill.SaveCallback
+import android.service.autofill.SaveRequest
+import androidx.annotation.RequiresApi
+import com.github.ajalt.timberkt.d
+import com.github.ajalt.timberkt.e
+import com.github.androidpasswordstore.autofillparser.AutofillScenario
+import com.github.androidpasswordstore.autofillparser.Credentials
+import com.github.androidpasswordstore.autofillparser.FillableForm
+import com.github.androidpasswordstore.autofillparser.FixedSaveCallback
+import com.github.androidpasswordstore.autofillparser.FormOrigin
+import com.github.androidpasswordstore.autofillparser.cachePublicSuffixList
+import com.github.androidpasswordstore.autofillparser.passwordValue
+import com.github.androidpasswordstore.autofillparser.recoverNodes
+import com.github.androidpasswordstore.autofillparser.usernameValue
+import dev.msfjarvis.aps.BuildConfig
+import dev.msfjarvis.aps.R
+import dev.msfjarvis.aps.ui.autofill.AutofillSaveActivity
+import dev.msfjarvis.aps.util.autofill.Api30AutofillResponseBuilder
+import dev.msfjarvis.aps.util.autofill.AutofillResponseBuilder
+import dev.msfjarvis.aps.util.settings.PreferenceKeys
+import dev.msfjarvis.aps.util.extensions.getString
+import dev.msfjarvis.aps.util.extensions.hasFlag
+import dev.msfjarvis.aps.util.extensions.sharedPrefs
+
+@RequiresApi(Build.VERSION_CODES.O)
+class OreoAutofillService : AutofillService() {
+
+    companion object {
+
+        // TODO: Provide a user-configurable denylist
+        private val DENYLISTED_PACKAGES = listOf(
+            BuildConfig.APPLICATION_ID,
+            "android",
+            "com.android.settings",
+            "com.android.settings.intelligence",
+            "com.android.systemui",
+            "com.oneplus.applocker",
+            "org.sufficientlysecure.keychain",
+        )
+
+        private const val DISABLE_AUTOFILL_DURATION_MS = 1000 * 60 * 60 * 24L
+    }
+
+    override fun onCreate() {
+        super.onCreate()
+        cachePublicSuffixList(applicationContext)
+    }
+
+    override fun onFillRequest(
+        request: FillRequest,
+        cancellationSignal: CancellationSignal,
+        callback: FillCallback
+    ) {
+        val structure = request.fillContexts.lastOrNull()?.structure ?: run {
+            callback.onSuccess(null)
+            return
+        }
+        if (structure.activityComponent.packageName in DENYLISTED_PACKAGES) {
+            if (Build.VERSION.SDK_INT >= 28) {
+                callback.onSuccess(FillResponse.Builder().run {
+                    disableAutofill(DISABLE_AUTOFILL_DURATION_MS)
+                    build()
+                })
+            } else {
+                callback.onSuccess(null)
+            }
+            return
+        }
+        val formToFill = FillableForm.parseAssistStructure(
+            this, structure,
+            isManualRequest = request.flags hasFlag FillRequest.FLAG_MANUAL_REQUEST,
+            getCustomSuffixes(),
+        ) ?: run {
+            d { "Form cannot be filled" }
+            callback.onSuccess(null)
+            return
+        }
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.R) {
+            Api30AutofillResponseBuilder(formToFill).fillCredentials(this, request.inlineSuggestionsRequest, callback)
+        } else {
+            AutofillResponseBuilder(formToFill).fillCredentials(this, callback)
+        }
+    }
+
+    override fun onSaveRequest(request: SaveRequest, callback: SaveCallback) {
+        // SaveCallback's behavior and feature set differs based on both target and device SDK, so
+        // we replace it with a wrapper that works the same in all situations.
+        @Suppress("NAME_SHADOWING") val callback = FixedSaveCallback(this, callback)
+        val structure = request.fillContexts.lastOrNull()?.structure ?: run {
+            callback.onFailure(getString(R.string.oreo_autofill_save_app_not_supported))
+            return
+        }
+        val clientState = request.clientState ?: run {
+            e { "Received save request without client state" }
+            callback.onFailure(getString(R.string.oreo_autofill_save_internal_error))
+            return
+        }
+        val scenario = AutofillScenario.fromClientState(clientState)?.recoverNodes(structure)
+            ?: run {
+                e { "Failed to recover client state or nodes from client state" }
+                callback.onFailure(getString(R.string.oreo_autofill_save_internal_error))
+                return
+            }
+        val formOrigin = FormOrigin.fromBundle(clientState) ?: run {
+            e { "Failed to recover form origin from client state" }
+            callback.onFailure(getString(R.string.oreo_autofill_save_internal_error))
+            return
+        }
+
+        val username = scenario.usernameValue
+        val password = scenario.passwordValue ?: run {
+            callback.onFailure(getString(R.string.oreo_autofill_save_passwords_dont_match))
+            return
+        }
+        callback.onSuccess(
+            AutofillSaveActivity.makeSaveIntentSender(
+                this,
+                credentials = Credentials(username, password, null),
+                formOrigin = formOrigin
+            )
+        )
+    }
+}
+
+fun Context.getDefaultUsername() = sharedPrefs.getString(PreferenceKeys.OREO_AUTOFILL_DEFAULT_USERNAME)
+
+fun Context.getCustomSuffixes(): Sequence<String> {
+    return sharedPrefs.getString(PreferenceKeys.OREO_AUTOFILL_CUSTOM_PUBLIC_SUFFIXES)
+        ?.splitToSequence('\n')
+        ?.filter { it.isNotBlank() && it.first() != '.' && it.last() != '.' }
+        ?: emptySequence()
+}
diff --git a/app/src/main/java/dev/msfjarvis/aps/util/services/PasswordExportService.kt b/app/src/main/java/dev/msfjarvis/aps/util/services/PasswordExportService.kt
new file mode 100644
index 00000000..9164aa46
--- /dev/null
+++ b/app/src/main/java/dev/msfjarvis/aps/util/services/PasswordExportService.kt
@@ -0,0 +1,158 @@
+/*
+ * Copyright © 2014-2020 The Android Password Store Authors. All Rights Reserved.
+ * SPDX-License-Identifier: GPL-3.0-only
+ */
+
+package dev.msfjarvis.aps.util.services
+
+import android.app.NotificationChannel
+import android.app.NotificationManager
+import android.app.Service
+import android.content.Intent
+import android.net.Uri
+import android.os.Build
+import android.os.IBinder
+import androidx.core.app.NotificationCompat
+import androidx.core.content.getSystemService
+import androidx.documentfile.provider.DocumentFile
+import com.github.ajalt.timberkt.d
+import dev.msfjarvis.aps.R
+import dev.msfjarvis.aps.data.repo.PasswordRepository
+import java.time.LocalDateTime
+import java.time.format.DateTimeFormatter
+import java.util.Calendar
+import java.util.TimeZone
+
+class PasswordExportService : Service() {
+
+    override fun onStartCommand(intent: Intent?, flags: Int, startId: Int): Int {
+        if (intent != null) {
+            when (intent.action) {
+                ACTION_EXPORT_PASSWORD -> {
+                    val uri = intent.getParcelableExtra<Uri>("uri")
+                    if (uri != null) {
+                        val targetDirectory = DocumentFile.fromTreeUri(applicationContext, uri)
+
+                        if (targetDirectory != null) {
+                            createNotification()
+                            exportPasswords(targetDirectory)
+                            stopSelf()
+                            return START_NOT_STICKY
+                        }
+                    }
+                }
+            }
+        }
+        return super.onStartCommand(intent, flags, startId)
+    }
+
+    override fun onBind(intent: Intent?): IBinder? {
+        return null
+    }
+
+    /**
+     * Exports passwords to the given directory.
+     *
+     * Recursively copies the existing password store to an external directory.
+     *
+     * @param targetDirectory directory to copy password directory to.
+     */
+    private fun exportPasswords(targetDirectory: DocumentFile) {
+
+        val repositoryDirectory = requireNotNull(PasswordRepository.getRepositoryDirectory())
+        val sourcePassDir = DocumentFile.fromFile(repositoryDirectory)
+
+        d { "Copying ${repositoryDirectory.path} to $targetDirectory" }
+
+        val dateString = if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
+            LocalDateTime
+                .now()
+                .format(DateTimeFormatter.ISO_DATE_TIME)
+        } else {
+            String.format("%tFT%<tRZ", Calendar.getInstance(TimeZone.getTimeZone("Z")))
+        }
+
+        val passDir = targetDirectory.createDirectory("password_store_$dateString")
+
+        if (passDir != null) {
+            copyDirToDir(sourcePassDir, passDir)
+        }
+    }
+
+    /**
+     * Copies a password file to a given directory.
+     *
+     * Note: this does not preserve last modified time.
+     *
+     * @param passwordFile password file to copy.
+     * @param targetDirectory target directory to copy password.
+     */
+    private fun copyFileToDir(passwordFile: DocumentFile, targetDirectory: DocumentFile) {
+        val sourceInputStream = contentResolver.openInputStream(passwordFile.uri)
+        val name = passwordFile.name
+        val targetPasswordFile = targetDirectory.createFile("application/octet-stream", name!!)
+        if (targetPasswordFile?.exists() == true) {
+            val destOutputStream = contentResolver.openOutputStream(targetPasswordFile.uri)
+
+            if (destOutputStream != null && sourceInputStream != null) {
+                sourceInputStream.copyTo(destOutputStream, 1024)
+
+                sourceInputStream.close()
+                destOutputStream.close()
+            }
+        }
+    }
+
+    /**
+     * Recursively copies a directory to a destination.
+     *
+     *  @param sourceDirectory directory to copy from.
+     *  @param targetDirectory directory to copy to.
+     */
+    private fun copyDirToDir(sourceDirectory: DocumentFile, targetDirectory: DocumentFile) {
+        sourceDirectory.listFiles().forEach { file ->
+            if (file.isDirectory) {
+                // Create new directory and recurse
+                val newDir = targetDirectory.createDirectory(file.name!!)
+                copyDirToDir(file, newDir!!)
+            } else {
+                copyFileToDir(file, targetDirectory)
+            }
+        }
+    }
+
+    private fun createNotification() {
+        createNotificationChannel()
+
+        val notification = NotificationCompat.Builder(this, CHANNEL_ID)
+            .setContentTitle(getString(R.string.app_name))
+            .setContentText(getString(R.string.exporting_passwords))
+            .setSmallIcon(R.drawable.ic_round_import_export)
+            .setPriority(NotificationCompat.PRIORITY_LOW)
+            .build()
+
+        startForeground(2, notification)
+    }
+
+    private fun createNotificationChannel() {
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
+            val serviceChannel = NotificationChannel(
+                CHANNEL_ID,
+                getString(R.string.app_name),
+                NotificationManager.IMPORTANCE_LOW
+            )
+            val manager = getSystemService<NotificationManager>()
+            if (manager != null) {
+                manager.createNotificationChannel(serviceChannel)
+            } else {
+                d { "Failed to create notification channel" }
+            }
+        }
+    }
+
+    companion object {
+
+        const val ACTION_EXPORT_PASSWORD = "ACTION_EXPORT_PASSWORD"
+        private const val CHANNEL_ID = "NotificationService"
+    }
+}