diff options
Diffstat (limited to 'OpenKeychain-Test/src/test/java/org/sufficientlysecure/keychain/support/KeyringTestingHelper.java')
| -rw-r--r-- | OpenKeychain-Test/src/test/java/org/sufficientlysecure/keychain/support/KeyringTestingHelper.java | 205 |
1 files changed, 205 insertions, 0 deletions
diff --git a/OpenKeychain-Test/src/test/java/org/sufficientlysecure/keychain/support/KeyringTestingHelper.java b/OpenKeychain-Test/src/test/java/org/sufficientlysecure/keychain/support/KeyringTestingHelper.java new file mode 100644 index 000000000..4c779d2b7 --- /dev/null +++ b/OpenKeychain-Test/src/test/java/org/sufficientlysecure/keychain/support/KeyringTestingHelper.java @@ -0,0 +1,205 @@ +/* + * Copyright (C) Art O Cathain, Vincent Breitmoser + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ +package org.sufficientlysecure.keychain.support; + +import android.content.Context; + +import org.spongycastle.util.Arrays; +import org.sufficientlysecure.keychain.pgp.NullProgressable; +import org.sufficientlysecure.keychain.pgp.UncachedKeyRing; +import org.sufficientlysecure.keychain.provider.ProviderHelper; +import org.sufficientlysecure.keychain.service.OperationResults; + +import java.io.ByteArrayInputStream; +import java.io.IOException; +import java.io.InputStream; +import java.util.Collection; +import java.util.HashSet; +import java.util.Set; + +/** + * Helper for tests of the Keyring import in ProviderHelper. + */ +public class KeyringTestingHelper { + + private final Context context; + + public KeyringTestingHelper(Context robolectricContext) { + this.context = robolectricContext; + } + + public boolean addKeyring(Collection<String> blobFiles) throws Exception { + + ProviderHelper providerHelper = new ProviderHelper(context); + + byte[] data = TestDataUtil.readAllFully(blobFiles); + UncachedKeyRing ring = UncachedKeyRing.decodeFromData(data); + long masterKeyId = ring.getMasterKeyId(); + + // Should throw an exception; key is not yet saved + retrieveKeyAndExpectNotFound(providerHelper, masterKeyId); + + OperationResults.SaveKeyringResult saveKeyringResult = providerHelper.savePublicKeyRing(ring, new NullProgressable()); + + boolean saveSuccess = saveKeyringResult.success(); + + // Now re-retrieve the saved key. Should not throw an exception. + providerHelper.getWrappedPublicKeyRing(masterKeyId); + + // A different ID should still fail + retrieveKeyAndExpectNotFound(providerHelper, masterKeyId - 1); + + return saveSuccess; + } + + public static class Packet { + int tag; + int length; + byte[] buf; + + public boolean equals(Object other) { + return other instanceof Packet && Arrays.areEqual(this.buf, ((Packet) other).buf); + } + + public int hashCode() { + // System.out.println("tag: " + tag + ", code: " + Arrays.hashCode(buf)); + return Arrays.hashCode(buf); + } + } + + public static boolean diffKeyrings(byte[] ringA, byte[] ringB, Set<Packet> onlyA, Set<Packet> onlyB) + throws IOException { + InputStream streamA = new ByteArrayInputStream(ringA); + InputStream streamB = new ByteArrayInputStream(ringB); + + HashSet<Packet> a = new HashSet<Packet>(), b = new HashSet<Packet>(); + + Packet p; + while(true) { + p = readPacket(streamA); + if (p == null) { + break; + } + a.add(p); + } + while(true) { + p = readPacket(streamB); + if (p == null) { + break; + } + b.add(p); + } + + onlyA.addAll(a); + onlyA.removeAll(b); + onlyB.addAll(b); + onlyB.removeAll(a); + + return onlyA.isEmpty() && onlyB.isEmpty(); + } + + private static Packet readPacket(InputStream in) throws IOException { + + // save here. this is tag + length, max 6 bytes + in.mark(6); + + int hdr = in.read(); + int headerLength = 1; + + if (hdr < 0) { + return null; + } + + if ((hdr & 0x80) == 0) { + throw new IOException("invalid header encountered"); + } + + boolean newPacket = (hdr & 0x40) != 0; + int tag = 0; + int bodyLen = 0; + + if (newPacket) { + tag = hdr & 0x3f; + + int l = in.read(); + headerLength += 1; + + if (l < 192) { + bodyLen = l; + } else if (l <= 223) { + int b = in.read(); + headerLength += 1; + + bodyLen = ((l - 192) << 8) + (b) + 192; + } else if (l == 255) { + bodyLen = (in.read() << 24) | (in.read() << 16) | (in.read() << 8) | in.read(); + headerLength += 4; + } else { + // bodyLen = 1 << (l & 0x1f); + throw new IOException("no support for partial bodies in test classes"); + } + } else { + int lengthType = hdr & 0x3; + + tag = (hdr & 0x3f) >> 2; + + switch (lengthType) { + case 0: + bodyLen = in.read(); + headerLength += 1; + break; + case 1: + bodyLen = (in.read() << 8) | in.read(); + headerLength += 2; + break; + case 2: + bodyLen = (in.read() << 24) | (in.read() << 16) | (in.read() << 8) | in.read(); + headerLength += 4; + break; + case 3: + // bodyLen = 1 << (l & 0x1f); + throw new IOException("no support for partial bodies in test classes"); + default: + throw new IOException("unknown length type encountered"); + } + } + + in.reset(); + + // read the entire packet INCLUDING the header here + byte[] buf = new byte[headerLength+bodyLen]; + if (in.read(buf) != headerLength+bodyLen) { + throw new IOException("read length mismatch!"); + } + Packet p = new Packet(); + p.tag = tag; + p.length = bodyLen; + p.buf = buf; + return p; + + } + + private void retrieveKeyAndExpectNotFound(ProviderHelper providerHelper, long masterKeyId) { + try { + providerHelper.getWrappedPublicKeyRing(masterKeyId); + throw new AssertionError("Was expecting the previous call to fail!"); + } catch (ProviderHelper.NotFoundException expectedException) { + // good + } + } + +} |