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package org.sufficientlysecure.keychain.service.input;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Date;
import android.os.Parcel;
import android.os.Parcelable;
import org.sufficientlysecure.keychain.Constants.key;
public class RequiredInputParcel implements Parcelable {
public enum RequiredInputType {
PASSPHRASE, PASSPHRASE_SYMMETRIC, NFC_SIGN, NFC_DECRYPT
}
public Date mSignatureTime;
public final RequiredInputType mType;
public final byte[][] mInputHashes;
public final int[] mSignAlgos;
private Long mMasterKeyId;
private Long mSubKeyId;
private RequiredInputParcel(RequiredInputType type, byte[][] inputHashes,
int[] signAlgos, Date signatureTime, Long masterKeyId, Long subKeyId) {
mType = type;
mInputHashes = inputHashes;
mSignAlgos = signAlgos;
mSignatureTime = signatureTime;
mMasterKeyId = masterKeyId;
mSubKeyId = subKeyId;
}
public RequiredInputParcel(Parcel source) {
mType = RequiredInputType.values()[source.readInt()];
// 0 = none, 1 = both, 2 = only hashes (decrypt)
int hashTypes = source.readInt();
if (hashTypes != 0) {
int count = source.readInt();
mInputHashes = new byte[count][];
if (hashTypes == 1) {
mSignAlgos = new int[count];
for (int i = 0; i < count; i++) {
mInputHashes[i] = source.createByteArray();
mSignAlgos[i] = source.readInt();
}
} else {
mSignAlgos = null;
for (int i = 0; i < count; i++) {
mInputHashes[i] = source.createByteArray();
}
}
} else {
mInputHashes = null;
mSignAlgos = null;
}
mSignatureTime = source.readInt() != 0 ? new Date(source.readLong()) : null;
mMasterKeyId = source.readInt() != 0 ? source.readLong() : null;
mSubKeyId = source.readInt() != 0 ? source.readLong() : null;
}
public Long getMasterKeyId() {
return mMasterKeyId;
}
public Long getSubKeyId() {
return mSubKeyId;
}
public static RequiredInputParcel createNfcSignOperation(
byte[] inputHash, int signAlgo, Date signatureTime) {
return new RequiredInputParcel(RequiredInputType.NFC_SIGN,
new byte[][] { inputHash }, new int[] { signAlgo },
signatureTime, null, null);
}
public static RequiredInputParcel createNfcDecryptOperation(byte[] inputHash, long subKeyId) {
return new RequiredInputParcel(RequiredInputType.NFC_DECRYPT,
new byte[][] { inputHash }, null, null, null, subKeyId);
}
public static RequiredInputParcel createRequiredSignPassphrase(
long masterKeyId, long subKeyId, Date signatureTime) {
return new RequiredInputParcel(RequiredInputType.PASSPHRASE,
null, null, signatureTime, masterKeyId, subKeyId);
}
public static RequiredInputParcel createRequiredDecryptPassphrase(
long masterKeyId, long subKeyId) {
return new RequiredInputParcel(RequiredInputType.PASSPHRASE,
null, null, null, masterKeyId, subKeyId);
}
public static RequiredInputParcel createRequiredSymmetricPassphrase() {
return new RequiredInputParcel(RequiredInputType.PASSPHRASE_SYMMETRIC,
null, null, null, null, null);
}
public static RequiredInputParcel createRequiredPassphrase(
RequiredInputParcel req) {
return new RequiredInputParcel(RequiredInputType.PASSPHRASE,
null, null, req.mSignatureTime, req.mMasterKeyId, req.mSubKeyId);
}
@Override
public int describeContents() {
return 0;
}
@Override
public void writeToParcel(Parcel dest, int flags) {
dest.writeInt(mType.ordinal());
if (mInputHashes != null) {
dest.writeInt(mSignAlgos != null ? 1 : 2);
dest.writeInt(mInputHashes.length);
for (int i = 0; i < mInputHashes.length; i++) {
dest.writeByteArray(mInputHashes[i]);
if (mSignAlgos != null) {
dest.writeInt(mSignAlgos[i]);
}
}
} else {
dest.writeInt(0);
}
if (mSignatureTime != null) {
dest.writeInt(1);
dest.writeLong(mSignatureTime.getTime());
} else {
dest.writeInt(0);
}
if (mMasterKeyId != null) {
dest.writeInt(1);
dest.writeLong(mMasterKeyId);
} else {
dest.writeInt(0);
}
if (mSubKeyId != null) {
dest.writeInt(1);
dest.writeLong(mSubKeyId);
} else {
dest.writeInt(0);
}
}
public static final Creator<RequiredInputParcel> CREATOR = new Creator<RequiredInputParcel>() {
public RequiredInputParcel createFromParcel(final Parcel source) {
return new RequiredInputParcel(source);
}
public RequiredInputParcel[] newArray(final int size) {
return new RequiredInputParcel[size];
}
};
public static class NfcSignOperationsBuilder {
Date mSignatureTime;
ArrayList<Integer> mSignAlgos = new ArrayList<>();
ArrayList<byte[]> mInputHashes = new ArrayList<>();
Long mMasterKeyId;
Long mSubKeyId;
public NfcSignOperationsBuilder(Date signatureTime, Long masterKeyId, Long subKeyId) {
mSignatureTime = signatureTime;
mMasterKeyId = masterKeyId;
mSubKeyId = subKeyId;
}
public RequiredInputParcel build() {
byte[][] inputHashes = new byte[mInputHashes.size()][];
mInputHashes.toArray(inputHashes);
int[] signAlgos = new int[mSignAlgos.size()];
for (int i = 0; i < mSignAlgos.size(); i++) {
signAlgos[i] = mSignAlgos.get(i);
}
return new RequiredInputParcel(RequiredInputType.NFC_SIGN,
inputHashes, signAlgos, mSignatureTime, mMasterKeyId, mSubKeyId);
}
public void addHash(byte[] hash, int algo) {
mInputHashes.add(hash);
mSignAlgos.add(algo);
}
public void addAll(RequiredInputParcel input) {
if (!mSignatureTime.equals(input.mSignatureTime)) {
throw new AssertionError("input times must match, this is a programming error!");
}
if (input.mType != RequiredInputType.NFC_SIGN) {
throw new AssertionError("operation types must match, this is a progrmming error!");
}
Collections.addAll(mInputHashes, input.mInputHashes);
for (int signAlgo : input.mSignAlgos) {
mSignAlgos.add(signAlgo);
}
}
public boolean isEmpty() {
return mInputHashes.isEmpty();
}
}
}
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