Ignore extra spaces and special characters in Recovery Password entry

libsignal/src/main/java/org/session/libsignal/crypto/MnemonicCodec.kt

@@ -114,8 +114,15 @@ class MnemonicCodec(private val loadFileContents: (String) -> String) {
         }.joinToString(separator = "") { it }
     }
 
+    fun sanitizeAndDecodeAsByteArray(mnemonic: String): ByteArray = sanitizeRecoveryPhrase(mnemonic).let(::decode).let(Hex::fromStringCondensed)
     fun decodeAsByteArray(mnemonic: String): ByteArray = decode(mnemonic = mnemonic).let(Hex::fromStringCondensed)
 
+    private fun sanitizeRecoveryPhrase(rawMnemonic: String): String = rawMnemonic
+        .replace("[^\\w]+".toRegex(), " ") // replace any sequence of non-word characters with a space
+        .trim() // remove leading and trailing whitespace (which may have been from prior special chars)
+        .split("\\s+".toRegex()) // split on the now properly positioned spaces
+        .joinToString(" ") // reassemble
+
     fun decodeMnemonicOrHexAsByteArray(mnemonicOrHex: String): ByteArray = try {
         decode(mnemonic = mnemonicOrHex).let(Hex::fromStringCondensed)
     } catch (decodeException: Exception) {