work in progress

3 files changed, 511 insertions, 1 deletions

diff --git a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/testsupport/KeyringBuilder.java b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/testsupport/KeyringBuilder.java
new file mode 100644
index 000000000..bbbe45ba2
--- /dev/null
+++ b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/testsupport/KeyringBuilder.java
@@ -0,0 +1,168 @@
+package org.sufficientlysecure.keychain.testsupport;
+
+import org.spongycastle.bcpg.CompressionAlgorithmTags;
+import org.spongycastle.bcpg.HashAlgorithmTags;
+import org.spongycastle.bcpg.MPInteger;
+import org.spongycastle.bcpg.PublicKeyAlgorithmTags;
+import org.spongycastle.bcpg.PublicKeyPacket;
+import org.spongycastle.bcpg.RSAPublicBCPGKey;
+import org.spongycastle.bcpg.SignaturePacket;
+import org.spongycastle.bcpg.SignatureSubpacket;
+import org.spongycastle.bcpg.SignatureSubpacketTags;
+import org.spongycastle.bcpg.SymmetricKeyAlgorithmTags;
+import org.spongycastle.bcpg.UserIDPacket;
+import org.spongycastle.bcpg.sig.Features;
+import org.spongycastle.bcpg.sig.IssuerKeyID;
+import org.spongycastle.bcpg.sig.KeyFlags;
+import org.spongycastle.bcpg.sig.PreferredAlgorithms;
+import org.spongycastle.bcpg.sig.SignatureCreationTime;
+import org.spongycastle.bcpg.sig.SignatureExpirationTime;
+import org.spongycastle.openpgp.PGPException;
+import org.spongycastle.openpgp.PGPPublicKey;
+import org.spongycastle.openpgp.PGPPublicKeyRing;
+import org.spongycastle.openpgp.PGPSignature;
+import org.spongycastle.openpgp.operator.bc.BcKeyFingerprintCalculator;
+import org.sufficientlysecure.keychain.pgp.UncachedKeyRing;
+
+import java.math.BigInteger;
+import java.util.Date;
+
+/**
+ * Created by art on 05/07/14.
+ */
+public class KeyringBuilder {
+
+
+    private static final BigInteger modulus = new BigInteger(
+            "cbab78d90d5f2cc0c54dd3c3953005a1" +
+                    "e6b521f1ffa5465a102648bf7b91ec72" +
+                    "f9c180759301587878caeb7333215620" +
+                    "9f81ca5b3b94309d96110f6972cfc56a" +
+                    "37fd6279f61d71f19b8f64b288e33829" +
+                    "9dce133520f5b9b4253e6f4ba31ca36a" +
+                    "fd87c2081b15f0b283e9350e370e181a" +
+                    "23d31379101f17a23ae9192250db6540" +
+                    "2e9cab2a275bc5867563227b197c8b13" +
+                    "6c832a94325b680e144ed864fb00b9b8" +
+                    "b07e13f37b40d5ac27dae63cd6a470a7" +
+                    "b40fa3c7479b5b43e634850cc680b177" +
+                    "8dd6b1b51856f36c3520f258f104db2f" +
+                    "96b31a53dd74f708ccfcefccbe420a90" +
+                    "1c37f1f477a6a4b15f5ecbbfd93311a6" +
+                    "47bcc3f5f81c59dfe7252e3cd3be6e27"
+            , 16
+    );
+
+    private static final BigInteger exponent = new BigInteger("010001", 16);
+
+    public static UncachedKeyRing ring1() {
+        return ringForModulus(new Date(1404566755), "user1@example.com");
+    }
+
+    public static UncachedKeyRing ring2() {
+        return ringForModulus(new Date(1404566755), "user1@example.com");
+    }
+
+    private static UncachedKeyRing ringForModulus(Date date, String userIdString) {
+
+        try {
+            PGPPublicKey publicKey = createPgpPublicKey(modulus, date);
+            UserIDPacket userId = createUserId(userIdString);
+            SignaturePacket signaturePacket = createSignaturePacket(date);
+
+            byte[] publicKeyEncoded = publicKey.getEncoded();
+            byte[] userIdEncoded = userId.getEncoded();
+            byte[] signaturePacketEncoded = signaturePacket.getEncoded();
+            byte[] encodedRing = TestDataUtil.concatAll(
+                    publicKeyEncoded,
+                    userIdEncoded,
+                    signaturePacketEncoded
+            );
+
+            PGPPublicKeyRing pgpPublicKeyRing = new PGPPublicKeyRing(
+                    encodedRing, new BcKeyFingerprintCalculator());
+
+            return UncachedKeyRing.decodeFromData(pgpPublicKeyRing.getEncoded());
+
+        } catch (Exception e) {
+            throw new RuntimeException(e);
+        }
+    }
+
+    private static SignaturePacket createSignaturePacket(Date date) {
+        int signatureType = PGPSignature.POSITIVE_CERTIFICATION;
+        long keyID = 1;
+        int keyAlgorithm = SignaturePacket.RSA_GENERAL;
+        int hashAlgorithm = HashAlgorithmTags.SHA1;
+
+        SignatureSubpacket[] hashedData = new SignatureSubpacket[]{
+                new SignatureCreationTime(true, date),
+                new KeyFlags(true, KeyFlags.SIGN_DATA & KeyFlags.CERTIFY_OTHER),
+                new SignatureExpirationTime(true, date.getTime() + 24 * 60 * 60 * 2),
+                new PreferredAlgorithms(SignatureSubpacketTags.PREFERRED_SYM_ALGS, true, new int[]{
+                        SymmetricKeyAlgorithmTags.AES_256,
+                        SymmetricKeyAlgorithmTags.AES_192,
+                        SymmetricKeyAlgorithmTags.AES_128,
+                        SymmetricKeyAlgorithmTags.CAST5,
+                        SymmetricKeyAlgorithmTags.TRIPLE_DES
+                }),
+                new PreferredAlgorithms(SignatureSubpacketTags.PREFERRED_HASH_ALGS, true, new int[]{
+                        HashAlgorithmTags.SHA256,
+                        HashAlgorithmTags.SHA1,
+                        HashAlgorithmTags.SHA384,
+                        HashAlgorithmTags.SHA512,
+                        HashAlgorithmTags.SHA224
+                }),
+                new PreferredAlgorithms(SignatureSubpacketTags.PREFERRED_COMP_ALGS, true, new int[]{
+                        CompressionAlgorithmTags.ZLIB,
+                        CompressionAlgorithmTags.BZIP2,
+                        CompressionAlgorithmTags.ZLIB
+                }),
+                new Features(false, Features.FEATURE_MODIFICATION_DETECTION),
+                // can't do keyserver prefs
+        };
+        SignatureSubpacket[] unhashedData = new SignatureSubpacket[]{
+                new IssuerKeyID(true, new BigInteger("15130BCF071AE6BF", 16).toByteArray())
+        };
+        byte[] fingerPrint = new BigInteger("522c", 16).toByteArray();
+        MPInteger[] signature = new MPInteger[]{
+                new MPInteger(new BigInteger(
+                        "b065c071d3439d5610eb22e5b4df9e42" +
+                                "ed78b8c94f487389e4fc98e8a75a043f" +
+                                "14bf57d591811e8e7db2d31967022d2e" +
+                                "e64372829183ec51d0e20c42d7a1e519" +
+                                "e9fa22cd9db90f0fd7094fd093b78be2" +
+                                "c0db62022193517404d749152c71edc6" +
+                                "fd48af3416038d8842608ecddebbb11c" +
+                                "5823a4321d2029b8993cb017fa8e5ad7" +
+                                "8a9a618672d0217c4b34002f1a4a7625" +
+                                "a514b6a86475e573cb87c64d7069658e" +
+                                "627f2617874007a28d525e0f87d93ca7" +
+                                "b15ad10dbdf10251e542afb8f9b16cbf" +
+                                "7bebdb5fe7e867325a44e59cad0991cb" +
+                                "239b1c859882e2ebb041b80e5cdc3b40" +
+                                "ed259a8a27d63869754c0881ccdcb50f" +
+                                "0564fecdc6966be4a4b87a3507a9d9be", 16
+                ))
+        };
+        return new SignaturePacket(signatureType,
+                keyID,
+                keyAlgorithm,
+                hashAlgorithm,
+                hashedData,
+                unhashedData,
+                fingerPrint,
+                signature);
+    }
+
+    private static PGPPublicKey createPgpPublicKey(BigInteger modulus, Date date) throws PGPException {
+        PublicKeyPacket publicKeyPacket = new PublicKeyPacket(PublicKeyAlgorithmTags.RSA_SIGN, date, new RSAPublicBCPGKey(modulus, exponent));
+        return new PGPPublicKey(
+                publicKeyPacket, new BcKeyFingerprintCalculator());
+    }
+
+    private static UserIDPacket createUserId(String userId) {
+        return new UserIDPacket(userId);
+    }
+
+}
diff --git a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/testsupport/TestDataUtil.java b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/testsupport/TestDataUtil.java
index 9e6ede761..338488e1f 100644
--- a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/testsupport/TestDataUtil.java
+++ b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/testsupport/TestDataUtil.java
@@ -4,6 +4,7 @@ import java.io.ByteArrayOutputStream;
 import java.io.IOException;
 import java.io.InputStream;
 import java.util.Collection;
+import java.util.Iterator;
 
 /**
  * Misc support functions. Would just use Guava / Apache Commons but
@@ -37,8 +38,71 @@ public class TestDataUtil {
         return output.toByteArray();
     }
 
-
     public static InputStream getResourceAsStream(String resourceName) {
         return TestDataUtil.class.getResourceAsStream(resourceName);
     }
+
+    /**
+     * Null-safe equivalent of {@code a.equals(b)}.
+     */
+    public static boolean equals(Object a, Object b) {
+        return (a == null) ? (b == null) : a.equals(b);
+    }
+
+    public static <T> boolean iterEquals(Iterator<T> a, Iterator<T> b, EqualityChecker<T> comparator) {
+        while (a.hasNext()) {
+            T aObject = a.next();
+            if (!b.hasNext()) {
+                return false;
+            }
+            T bObject = b.next();
+            if (!comparator.areEquals(aObject, bObject)) {
+                return false;
+            }
+        }
+
+        if (b.hasNext()) {
+            return false;
+        }
+
+        return true;
+    }
+
+
+    public static <T> boolean iterEquals(Iterator<T> a, Iterator<T> b) {
+        return iterEquals(a, b, new EqualityChecker<T>() {
+            @Override
+            public boolean areEquals(T lhs, T rhs) {
+                return TestDataUtil.equals(lhs, rhs);
+            }
+        });
+    }
+
+    public static interface EqualityChecker<T> {
+        public boolean areEquals(T lhs, T rhs);
+    }
+
+    public static byte[] concatAll(byte[]... byteArrays) {
+        if (byteArrays.length == 1) {
+            return byteArrays[0];
+        } else if (byteArrays.length == 2) {
+            return concat(byteArrays[0], byteArrays[1]);
+        } else {
+            byte[] first = concat(byteArrays[0], byteArrays[1]);
+            byte[][] remainingArrays = new byte[byteArrays.length - 1][];
+            remainingArrays[0] = first;
+            System.arraycopy(byteArrays, 2, remainingArrays, 1, byteArrays.length - 2);
+            return concatAll(remainingArrays);
+        }
+    }
+
+    private static byte[] concat(byte[] a, byte[] b) {
+        int aLen = a.length;
+        int bLen = b.length;
+        byte[] c = new byte[aLen + bLen];
+        System.arraycopy(a, 0, c, 0, aLen);
+        System.arraycopy(b, 0, c, aLen, bLen);
+        return c;
+    }
+
 }
diff --git a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/testsupport/UncachedKeyringTestingHelper.java b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/testsupport/UncachedKeyringTestingHelper.java
new file mode 100644
index 000000000..e0580a86a
--- /dev/null
+++ b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/testsupport/UncachedKeyringTestingHelper.java
@@ -0,0 +1,278 @@
+package org.sufficientlysecure.keychain.testsupport;
+
+import org.spongycastle.bcpg.BCPGKey;
+import org.spongycastle.bcpg.PublicKeyAlgorithmTags;
+import org.spongycastle.bcpg.PublicKeyPacket;
+import org.spongycastle.bcpg.RSAPublicBCPGKey;
+import org.spongycastle.bcpg.SignatureSubpacket;
+import org.spongycastle.openpgp.PGPException;
+import org.spongycastle.openpgp.PGPPublicKey;
+import org.spongycastle.openpgp.PGPPublicKeyRing;
+import org.spongycastle.openpgp.PGPSignature;
+import org.spongycastle.openpgp.PGPSignatureSubpacketVector;
+import org.spongycastle.openpgp.PGPUserAttributeSubpacketVector;
+import org.spongycastle.openpgp.operator.bc.BcKeyFingerprintCalculator;
+import org.sufficientlysecure.keychain.pgp.UncachedKeyRing;
+import org.sufficientlysecure.keychain.pgp.UncachedPublicKey;
+
+import java.math.BigInteger;
+import java.util.Arrays;
+import java.util.Date;
+
+/**
+ * Created by art on 28/06/14.
+ */
+public class UncachedKeyringTestingHelper {
+
+    public static boolean compareRing(UncachedKeyRing keyRing1, UncachedKeyRing keyRing2) {
+        return TestDataUtil.iterEquals(keyRing1.getPublicKeys(), keyRing2.getPublicKeys(), new
+                TestDataUtil.EqualityChecker<UncachedPublicKey>() {
+                    @Override
+                    public boolean areEquals(UncachedPublicKey lhs, UncachedPublicKey rhs) {
+                        return comparePublicKey(lhs, rhs);
+                    }
+                });
+    }
+
+    public static boolean comparePublicKey(UncachedPublicKey key1, UncachedPublicKey key2) {
+        boolean equal = true;
+
+        if (key1.canAuthenticate() != key2.canAuthenticate()) {
+            return false;
+        }
+        if (key1.canCertify() != key2.canCertify()) {
+            return false;
+        }
+        if (key1.canEncrypt() != key2.canEncrypt()) {
+            return false;
+        }
+        if (key1.canSign() != key2.canSign()) {
+            return false;
+        }
+        if (key1.getAlgorithm() != key2.getAlgorithm()) {
+            return false;
+        }
+        if (key1.getBitStrength() != key2.getBitStrength()) {
+            return false;
+        }
+        if (!TestDataUtil.equals(key1.getCreationTime(), key2.getCreationTime())) {
+            return false;
+        }
+        if (!TestDataUtil.equals(key1.getExpiryTime(), key2.getExpiryTime())) {
+            return false;
+        }
+        if (!Arrays.equals(key1.getFingerprint(), key2.getFingerprint())) {
+            return false;
+        }
+        if (key1.getKeyId() != key2.getKeyId()) {
+            return false;
+        }
+        if (key1.getKeyUsage() != key2.getKeyUsage()) {
+            return false;
+        }
+        if (!TestDataUtil.equals(key1.getPrimaryUserId(), key2.getPrimaryUserId())) {
+            return false;
+        }
+
+        // Ooops, getPublicKey is due to disappear. But then how to compare?
+        if (!keysAreEqual(key1.getPublicKey(), key2.getPublicKey())) {
+            return false;
+        }
+
+        return equal;
+    }
+
+    public static boolean keysAreEqual(PGPPublicKey a, PGPPublicKey b) {
+
+        if (a.getAlgorithm() != b.getAlgorithm()) {
+            return false;
+        }
+
+        if (a.getBitStrength() != b.getBitStrength()) {
+            return false;
+        }
+
+        if (!TestDataUtil.equals(a.getCreationTime(), b.getCreationTime())) {
+            return false;
+        }
+
+        if (!Arrays.equals(a.getFingerprint(), b.getFingerprint())) {
+            return false;
+        }
+
+        if (a.getKeyID() != b.getKeyID()) {
+            return false;
+        }
+
+        if (!pubKeyPacketsAreEqual(a.getPublicKeyPacket(), b.getPublicKeyPacket())) {
+            return false;
+        }
+
+        if (a.getVersion() != b.getVersion()) {
+            return false;
+        }
+
+        if (a.getValidDays() != b.getValidDays()) {
+            return false;
+        }
+
+        if (a.getValidSeconds() != b.getValidSeconds()) {
+            return false;
+        }
+
+        if (!Arrays.equals(a.getTrustData(), b.getTrustData())) {
+            return false;
+        }
+
+        if (!TestDataUtil.iterEquals(a.getUserIDs(), b.getUserIDs())) {
+            return false;
+        }
+
+        if (!TestDataUtil.iterEquals(a.getUserAttributes(), b.getUserAttributes(),
+                new TestDataUtil.EqualityChecker<PGPUserAttributeSubpacketVector>() {
+                    public boolean areEquals(PGPUserAttributeSubpacketVector lhs, PGPUserAttributeSubpacketVector rhs) {
+                        // For once, BC defines equals, so we use it implicitly.
+                        return TestDataUtil.equals(lhs, rhs);
+                    }
+                }
+        )) {
+            return false;
+        }
+
+
+        if (!TestDataUtil.iterEquals(a.getSignatures(), b.getSignatures(),
+                new TestDataUtil.EqualityChecker<PGPSignature>() {
+                    public boolean areEquals(PGPSignature lhs, PGPSignature rhs) {
+                        return signaturesAreEqual(lhs, rhs);
+                    }
+                }
+        )) {
+            return false;
+        }
+
+        return true;
+    }
+
+    public static boolean signaturesAreEqual(PGPSignature a, PGPSignature b) {
+
+        if (a.getVersion() != b.getVersion()) {
+            return false;
+        }
+
+        if (a.getKeyAlgorithm() != b.getKeyAlgorithm()) {
+            return false;
+        }
+
+        if (a.getHashAlgorithm() != b.getHashAlgorithm()) {
+            return false;
+        }
+
+        if (a.getSignatureType() != b.getSignatureType()) {
+            return false;
+        }
+
+        try {
+            if (!Arrays.equals(a.getSignature(), b.getSignature())) {
+                return false;
+            }
+        } catch (PGPException ex) {
+            throw new RuntimeException(ex);
+        }
+
+        if (a.getKeyID() != b.getKeyID()) {
+            return false;
+        }
+
+        if (!TestDataUtil.equals(a.getCreationTime(), b.getCreationTime())) {
+            return false;
+        }
+
+        if (!Arrays.equals(a.getSignatureTrailer(), b.getSignatureTrailer())) {
+            return false;
+        }
+
+        if (!subPacketVectorsAreEqual(a.getHashedSubPackets(), b.getHashedSubPackets())) {
+            return false;
+        }
+
+        if (!subPacketVectorsAreEqual(a.getUnhashedSubPackets(), b.getUnhashedSubPackets())) {
+            return false;
+        }
+
+        return true;
+    }
+
+    private static boolean subPacketVectorsAreEqual(PGPSignatureSubpacketVector aHashedSubPackets, PGPSignatureSubpacketVector bHashedSubPackets) {
+        for (int i = 0; i < Byte.MAX_VALUE; i++) {
+            if (!TestDataUtil.iterEquals(Arrays.asList(aHashedSubPackets.getSubpackets(i)).iterator(),
+                    Arrays.asList(bHashedSubPackets.getSubpackets(i)).iterator(),
+                    new TestDataUtil.EqualityChecker<SignatureSubpacket>() {
+                        @Override
+                        public boolean areEquals(SignatureSubpacket lhs, SignatureSubpacket rhs) {
+                            return signatureSubpacketsAreEqual(lhs, rhs);
+                        }
+                    }
+            )) {
+                return false;
+            }
+
+        }
+        return true;
+    }
+
+    private static boolean signatureSubpacketsAreEqual(SignatureSubpacket lhs, SignatureSubpacket rhs) {
+        if (lhs.getType() != rhs.getType()) {
+            return false;
+        }
+        if (!Arrays.equals(lhs.getData(), rhs.getData())) {
+            return false;
+        }
+        return true;
+    }
+
+    public static boolean pubKeyPacketsAreEqual(PublicKeyPacket a, PublicKeyPacket b) {
+
+        if (a.getAlgorithm() != b.getAlgorithm()) {
+            return false;
+        }
+
+        if (!bcpgKeysAreEqual(a.getKey(), b.getKey())) {
+            return false;
+        }
+
+        if (!TestDataUtil.equals(a.getTime(), b.getTime())) {
+            return false;
+        }
+
+        if (a.getValidDays() != b.getValidDays()) {
+            return false;
+        }
+
+        if (a.getVersion() != b.getVersion()) {
+            return false;
+        }
+
+        return true;
+    }
+
+    public static boolean bcpgKeysAreEqual(BCPGKey a, BCPGKey b) {
+
+        if (!TestDataUtil.equals(a.getFormat(), b.getFormat())) {
+            return false;
+        }
+
+        if (!Arrays.equals(a.getEncoded(), b.getEncoded())) {
+            return false;
+        }
+
+        return true;
+    }
+
+
+    public void doTestCanonicalize(UncachedKeyRing inputKeyRing, UncachedKeyRing expectedKeyRing) {
+        if (!compareRing(inputKeyRing, expectedKeyRing)) {
+            throw new AssertionError("Expected [" + inputKeyRing + "] to match [" + expectedKeyRing + "]");
+        }
+    }
+
+}