From 10ad7be46bd44956116c5ac363ea970bcd8082d6 Mon Sep 17 00:00:00 2001
From: Vincent Breitmoser <valodim@mugenguild.com>
Date: Fri, 23 May 2014 16:44:50 +0200
Subject: wrapped-key-ring: UncachedKeyRing wraps only one ring of dynamic type

---
 .../keychain/pgp/UncachedPublicKey.java            | 36 +++++++++++++++++++++-
 1 file changed, 35 insertions(+), 1 deletion(-)

(limited to 'OpenKeychain/src/main/java/org/sufficientlysecure/keychain/pgp/UncachedPublicKey.java')

diff --git a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/pgp/UncachedPublicKey.java b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/pgp/UncachedPublicKey.java
index bc37f6201..7f6fae4a6 100644
--- a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/pgp/UncachedPublicKey.java
+++ b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/pgp/UncachedPublicKey.java
@@ -1,14 +1,19 @@
 package org.sufficientlysecure.keychain.pgp;
 
+import org.spongycastle.bcpg.SignatureSubpacketTags;
 import org.spongycastle.bcpg.sig.KeyFlags;
 import org.spongycastle.openpgp.PGPPublicKey;
 import org.spongycastle.openpgp.PGPSignature;
 import org.spongycastle.openpgp.PGPSignatureSubpacketVector;
+import org.spongycastle.openpgp.operator.jcajce.JcaPGPContentVerifierBuilderProvider;
+import org.sufficientlysecure.keychain.Constants;
 import org.sufficientlysecure.keychain.util.IterableIterator;
 
+import java.util.ArrayList;
 import java.util.Calendar;
 import java.util.Date;
 import java.util.GregorianCalendar;
+import java.util.List;
 
 public class UncachedPublicKey {
     protected final PGPPublicKey mPublicKey;
@@ -22,7 +27,8 @@ public class UncachedPublicKey {
         return mPublicKey.getKeyID();
     }
 
-    public boolean isRevoked() {
+    /** The revocation signature is NOT checked here, so this may be false! */
+    public boolean maybeRevoked() {
         return mPublicKey.isRevoked();
     }
 
@@ -60,6 +66,34 @@ public class UncachedPublicKey {
         return mPublicKey.getAlgorithm();
     }
 
+    public int getBitStrength() {
+        return mPublicKey.getBitStrength();
+    }
+
+    public String getPrimaryUserId() {
+        List<String> userIds = new ArrayList<String>();
+        for (String userId : new IterableIterator<String>(mPublicKey.getUserIDs())) {
+            userIds.add(userId);
+            for (PGPSignature sig : new IterableIterator<PGPSignature>(mPublicKey.getSignaturesForID(userId))) {
+                if (sig.getHashedSubPackets() != null
+                        && sig.getHashedSubPackets().hasSubpacket(SignatureSubpacketTags.PRIMARY_USER_ID)) {
+                    try {
+                        // make sure it's actually valid
+                        sig.init(new JcaPGPContentVerifierBuilderProvider().setProvider(
+                                Constants.BOUNCY_CASTLE_PROVIDER_NAME), mPublicKey);
+                        if (sig.verifyCertification(userId, mPublicKey)) {
+                            return userId;
+                        }
+                    } catch (Exception e) {
+                        // nothing bad happens, the key is just not considered the primary key id
+                    }
+                }
+
+            }
+        }
+        return null;
+    }
+
     public boolean isElGamalEncrypt() {
         return getAlgorithm() == PGPPublicKey.ELGAMAL_ENCRYPT;
     }
-- 
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