Reintroduce TOTP support (#890)

Co-authored-by: Fabian Henneke <fabian@henneke.me>

1 files changed, 32 insertions, 0 deletions

diff --git a/app/src/main/java/com/zeapo/pwdstore/utils/TotpFinder.kt b/app/src/main/java/com/zeapo/pwdstore/utils/TotpFinder.kt
new file mode 100644
index 00000000..13a47543
--- /dev/null
+++ b/app/src/main/java/com/zeapo/pwdstore/utils/TotpFinder.kt
@@ -0,0 +1,32 @@
+/*
+ * Copyright © 2014-2020 The Android Password Store Authors. All Rights Reserved.
+ * SPDX-License-Identifier: GPL-3.0-only
+ */
+
+package com.zeapo.pwdstore.utils
+
+/**
+ * Defines a class that can extract relevant parts of a TOTP URL for use by the app.
+ */
+interface TotpFinder {
+
+    /**
+     * Get the TOTP secret from the given extra content.
+     */
+    fun findSecret(content: String): String?
+
+    /**
+     * Get the number of digits required in the final OTP.
+     */
+    fun findDigits(content: String): String
+
+    /**
+     * Get the TOTP timeout period.
+     */
+    fun findPeriod(content: String): Long
+
+    /**
+     * Get the algorithm for the TOTP secret.
+     */
+    fun findAlgorithm(content: String): String
+}