Add `KeyUtils#tryGetEmail`

1 files changed, 6 insertions, 0 deletions

diff --git a/crypto-pgpainless/src/main/kotlin/app/passwordstore/crypto/KeyUtils.kt b/crypto-pgpainless/src/main/kotlin/app/passwordstore/crypto/KeyUtils.kt
index 39478751..586603fd 100644
--- a/crypto-pgpainless/src/main/kotlin/app/passwordstore/crypto/KeyUtils.kt
+++ b/crypto-pgpainless/src/main/kotlin/app/passwordstore/crypto/KeyUtils.kt
@@ -6,6 +6,7 @@
 package app.passwordstore.crypto
 
 import app.passwordstore.crypto.GpgIdentifier.KeyId
+import app.passwordstore.crypto.GpgIdentifier.UserId
 import com.github.michaelbull.result.get
 import com.github.michaelbull.result.runCatching
 import org.bouncycastle.openpgp.PGPKeyRing
@@ -34,4 +35,9 @@ public object KeyUtils {
     val keyRing = tryParseKeyring(key) ?: return null
     return KeyId(keyRing.publicKey.keyID)
   }
+
+  public fun tryGetEmail(key: PGPKey): UserId? {
+    val keyRing = tryParseKeyring(key) ?: return null
+    return UserId(keyRing.publicKey.userIDs.next())
+  }
 }