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/*
* Copyright (C) 2014 Dominik Schürmann <dominik@dominikschuermann.de>
*
* 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.pgp;
import org.openintents.openpgp.OpenPgpSignatureResult;
import org.sufficientlysecure.keychain.Constants;
import org.sufficientlysecure.keychain.pgp.exception.PgpKeyNotFoundException;
import org.sufficientlysecure.keychain.util.Log;
import java.util.ArrayList;
/**
* This class can be used to build OpenPgpSignatureResult objects based on several checks.
* It serves as a constraint which information are returned inside an OpenPgpSignatureResult object.
*/
public class OpenPgpSignatureResultBuilder {
// OpenPgpSignatureResult
private String mPrimaryUserId;
private ArrayList<String> mUserIds = new ArrayList<>();
private long mKeyId;
// builder
private boolean mSignatureAvailable = false;
private boolean mKnownKey = false;
private boolean mValidSignature = false;
private boolean mIsSignatureKeyCertified = false;
private boolean mIsKeyRevoked = false;
private boolean mIsKeyExpired = false;
private boolean mInsecure = false;
public void setPrimaryUserId(String userId) {
this.mPrimaryUserId = userId;
}
public void setKeyId(long keyId) {
this.mKeyId = keyId;
}
public void setKnownKey(boolean knownKey) {
this.mKnownKey = knownKey;
}
public void setValidSignature(boolean validSignature) {
this.mValidSignature = validSignature;
}
public void setInsecure(boolean insecure) {
this.mInsecure = insecure;
}
public void setSignatureKeyCertified(boolean isSignatureKeyCertified) {
this.mIsSignatureKeyCertified = isSignatureKeyCertified;
}
public void setSignatureAvailable(boolean signatureAvailable) {
this.mSignatureAvailable = signatureAvailable;
}
public void setKeyRevoked(boolean keyRevoked) {
this.mIsKeyRevoked = keyRevoked;
}
public void setKeyExpired(boolean keyExpired) {
this.mIsKeyExpired = keyExpired;
}
public void setUserIds(ArrayList<String> userIds) {
this.mUserIds = userIds;
}
public boolean isValidSignature() {
return mValidSignature;
}
public boolean isInsecure() {
return mInsecure;
}
public void initValid(CanonicalizedPublicKey signingKey) {
setSignatureAvailable(true);
setKnownKey(true);
CanonicalizedKeyRing signingRing = signingKey.getKeyRing();
// from RING
setKeyId(signingRing.getMasterKeyId());
try {
setPrimaryUserId(signingRing.getPrimaryUserIdWithFallback());
} catch (PgpKeyNotFoundException e) {
Log.d(Constants.TAG, "No primary user id in keyring with master key id " + signingRing.getMasterKeyId());
}
setSignatureKeyCertified(signingRing.getVerified() > 0);
Log.d(Constants.TAG, "signingRing.getUnorderedUserIds(): " + signingRing.getUnorderedUserIds());
setUserIds(signingRing.getUnorderedUserIds());
// either master key is expired/revoked or this specific subkey is expired/revoked
setKeyExpired(signingRing.isExpired() || signingKey.isExpired());
setKeyRevoked(signingRing.isRevoked() || signingKey.isRevoked());
}
public OpenPgpSignatureResult build() {
OpenPgpSignatureResult result = new OpenPgpSignatureResult();
if (!mSignatureAvailable) {
Log.d(Constants.TAG, "RESULT_NO_SIGNATURE");
result.setResult(OpenPgpSignatureResult.RESULT_NO_SIGNATURE);
return result;
}
if (!mKnownKey) {
result.setKeyId(mKeyId);
Log.d(Constants.TAG, "RESULT_KEY_MISSING");
result.setResult(OpenPgpSignatureResult.RESULT_KEY_MISSING);
return result;
}
if (!mValidSignature) {
Log.d(Constants.TAG, "RESULT_INVALID_SIGNATURE");
result.setResult(OpenPgpSignatureResult.RESULT_INVALID_SIGNATURE);
return result;
}
result.setKeyId(mKeyId);
result.setPrimaryUserId(mPrimaryUserId);
result.setUserIds(mUserIds);
if (mIsKeyRevoked) {
Log.d(Constants.TAG, "RESULT_INVALID_KEY_REVOKED");
result.setResult(OpenPgpSignatureResult.RESULT_INVALID_KEY_REVOKED);
} else if (mIsKeyExpired) {
Log.d(Constants.TAG, "RESULT_INVALID_KEY_EXPIRED");
result.setResult(OpenPgpSignatureResult.RESULT_INVALID_KEY_EXPIRED);
} else if (mInsecure) {
Log.d(Constants.TAG, "RESULT_INVALID_INSECURE");
result.setResult(OpenPgpSignatureResult.RESULT_INVALID_INSECURE);
} else if (mIsSignatureKeyCertified) {
Log.d(Constants.TAG, "RESULT_VALID_CONFIRMED");
result.setResult(OpenPgpSignatureResult.RESULT_VALID_CONFIRMED);
} else {
Log.d(Constants.TAG, "RESULT_VALID_UNCONFIRMED");
result.setResult(OpenPgpSignatureResult.RESULT_VALID_UNCONFIRMED);
}
return result;
}
}
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