Only show that have sessions in fingerprint list

Doesn't access database directly anymore but goes through AxolotlService
now to obtain list of fingerprints associated with an Account/Contact.
This should prevent orphaned keys littering the UI which previously
couldn't be removed through the Clear Devices function.

Together with 1c79982da84964c1d81179a0927d9cd1eadf53de this fixes #1393

2 files changed, 21 insertions, 5 deletions

diff --git a/src/main/java/eu/siacs/conversations/crypto/axolotl/AxolotlService.java b/src/main/java/eu/siacs/conversations/crypto/axolotl/AxolotlService.java
index e4c49e7c..a8e414f0 100644
--- a/src/main/java/eu/siacs/conversations/crypto/axolotl/AxolotlService.java
+++ b/src/main/java/eu/siacs/conversations/crypto/axolotl/AxolotlService.java
@@ -190,8 +190,8 @@ public class AxolotlService {
 		this.executor = new SerialSingleThreadExecutor();
 	}
 
-	public IdentityKey getOwnPublicKey() {
-		return axolotlStore.getIdentityKeyPair().getPublicKey();
+	public String getOwnFingerprint() {
+		return axolotlStore.getIdentityKeyPair().getPublicKey().getFingerprint().replaceAll("\\s", "");
 	}
 
 	public Set<IdentityKey> getKeysWithTrust(XmppAxolotlSession.Trust trust) {
@@ -222,6 +222,22 @@ public class AxolotlService {
 		return sessions;
 	}
 
+	public Set<String> getFingerprintsForOwnSessions() {
+		Set<String> fingerprints = new HashSet<>();
+		for (XmppAxolotlSession session : findOwnSessions()) {
+			fingerprints.add(session.getFingerprint());
+		}
+		return fingerprints;
+	}
+
+	public Set<String> getFingerprintsForContact(final Contact contact) {
+		Set<String> fingerprints = new HashSet<>();
+		for (XmppAxolotlSession session : findSessionsforContact(contact)) {
+			fingerprints.add(session.getFingerprint());
+		}
+		return fingerprints;
+	}
+
 	private boolean hasAny(Contact contact) {
 		AxolotlAddress contactAddress = getAddressForJid(contact.getJid());
 		return sessions.hasAny(contactAddress);
@@ -310,8 +326,8 @@ public class AxolotlService {
 		});
 	}
 
-	public void purgeKey(IdentityKey identityKey) {
-		axolotlStore.setFingerprintTrust(identityKey.getFingerprint().replaceAll("\\s", ""), XmppAxolotlSession.Trust.COMPROMISED);
+	public void purgeKey(final String fingerprint) {
+		axolotlStore.setFingerprintTrust(fingerprint.replaceAll("\\s", ""), XmppAxolotlSession.Trust.COMPROMISED);
 	}
 
 	public void publishOwnDeviceIdIfNeeded() {
diff --git a/src/main/java/eu/siacs/conversations/crypto/axolotl/XmppAxolotlSession.java b/src/main/java/eu/siacs/conversations/crypto/axolotl/XmppAxolotlSession.java
index c4053854..d582db40 100644
--- a/src/main/java/eu/siacs/conversations/crypto/axolotl/XmppAxolotlSession.java
+++ b/src/main/java/eu/siacs/conversations/crypto/axolotl/XmppAxolotlSession.java
@@ -91,7 +91,7 @@ public class XmppAxolotlSession {
 
 	public XmppAxolotlSession(Account account, SQLiteAxolotlStore store, AxolotlAddress remoteAddress, String fingerprint) {
 		this(account, store, remoteAddress);
-		this.fingerprint = fingerprint;
+		this.fingerprint = fingerprint.replaceAll("\\s","");
 	}
 
 	public XmppAxolotlSession(Account account, SQLiteAxolotlStore store, AxolotlAddress remoteAddress) {