Integrate PGPainless backend into the UI properly (#1647)

1 files changed, 67 insertions, 0 deletions

diff --git a/app/src/main/java/dev/msfjarvis/aps/ui/pgp/PGPKeyImportActivity.kt b/app/src/main/java/dev/msfjarvis/aps/ui/pgp/PGPKeyImportActivity.kt
new file mode 100644
index 00000000..3cd6930c
--- /dev/null
+++ b/app/src/main/java/dev/msfjarvis/aps/ui/pgp/PGPKeyImportActivity.kt
@@ -0,0 +1,67 @@
+/*
+ * Copyright © 2014-2021 The Android Password Store Authors. All Rights Reserved.
+ * SPDX-License-Identifier: GPL-3.0-only
+ */
+@file:Suppress("BlockingMethodInNonBlockingContext")
+
+package dev.msfjarvis.aps.ui.pgp
+
+import android.os.Bundle
+import androidx.activity.result.contract.ActivityResultContracts.OpenDocument
+import androidx.appcompat.app.AppCompatActivity
+import com.github.michaelbull.result.mapBoth
+import com.github.michaelbull.result.runCatching
+import com.google.android.material.dialog.MaterialAlertDialogBuilder
+import dagger.hilt.android.AndroidEntryPoint
+import dev.msfjarvis.aps.R
+import dev.msfjarvis.aps.crypto.Key
+import dev.msfjarvis.aps.crypto.KeyUtils.tryGetId
+import dev.msfjarvis.aps.crypto.PGPKeyManager
+import javax.inject.Inject
+import kotlinx.coroutines.runBlocking
+
+@AndroidEntryPoint
+class PGPKeyImportActivity : AppCompatActivity() {
+
+  @Inject lateinit var keyManager: PGPKeyManager
+
+  private val pgpKeyImportAction =
+    registerForActivityResult(OpenDocument()) { uri ->
+      runCatching {
+          if (uri == null) {
+            throw IllegalStateException("Selected URI was null")
+          }
+          val keyInputStream =
+            contentResolver.openInputStream(uri)
+              ?: throw IllegalStateException("Failed to open selected file")
+          val bytes = keyInputStream.readBytes()
+          val (key, error) = runBlocking { keyManager.addKey(Key(bytes)) }
+          if (error != null) throw error
+          key
+        }
+        .mapBoth(
+          { key ->
+            require(key != null) { "Key cannot be null here" }
+            MaterialAlertDialogBuilder(this)
+              .setTitle(getString(R.string.pgp_key_import_succeeded))
+              .setMessage(getString(R.string.pgp_key_import_succeeded_message, tryGetId(key)))
+              .setPositiveButton(android.R.string.ok) { _, _ -> finish() }
+              .setOnCancelListener { finish() }
+              .show()
+          },
+          { throwable ->
+            MaterialAlertDialogBuilder(this)
+              .setTitle(getString(R.string.pgp_key_import_failed))
+              .setMessage(throwable.message)
+              .setPositiveButton(android.R.string.ok) { _, _ -> finish() }
+              .setOnCancelListener { finish() }
+              .show()
+          }
+        )
+    }
+
+  override fun onCreate(savedInstanceState: Bundle?) {
+    super.onCreate(savedInstanceState)
+    pgpKeyImportAction.launch(arrayOf("*/*"))
+  }
+}