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|
/*
* Copyright (C) 2012-2014 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.provider;
import android.content.ContentProviderOperation;
import android.content.ContentResolver;
import android.content.ContentValues;
import android.content.Context;
import android.content.OperationApplicationException;
import android.database.Cursor;
import android.net.Uri;
import android.os.RemoteException;
import android.support.v4.util.LongSparseArray;
import org.sufficientlysecure.keychain.Constants;
import org.sufficientlysecure.keychain.pgp.KeyRing;
import org.sufficientlysecure.keychain.service.OperationResultParcel;
import org.sufficientlysecure.keychain.service.OperationResultParcel.LogType;
import org.sufficientlysecure.keychain.service.OperationResultParcel.LogLevel;
import org.sufficientlysecure.keychain.service.OperationResultParcel.OperationLog;
import org.sufficientlysecure.keychain.pgp.PgpHelper;
import org.sufficientlysecure.keychain.pgp.PgpKeyHelper;
import org.sufficientlysecure.keychain.pgp.UncachedKeyRing;
import org.sufficientlysecure.keychain.pgp.UncachedPublicKey;
import org.sufficientlysecure.keychain.pgp.WrappedPublicKeyRing;
import org.sufficientlysecure.keychain.pgp.WrappedSecretKeyRing;
import org.sufficientlysecure.keychain.pgp.WrappedSignature;
import org.sufficientlysecure.keychain.pgp.exception.PgpGeneralException;
import org.sufficientlysecure.keychain.provider.KeychainContract.ApiApps;
import org.sufficientlysecure.keychain.provider.KeychainContract.Certs;
import org.sufficientlysecure.keychain.provider.KeychainContract.KeyRingData;
import org.sufficientlysecure.keychain.provider.KeychainContract.KeyRings;
import org.sufficientlysecure.keychain.provider.KeychainContract.Keys;
import org.sufficientlysecure.keychain.provider.KeychainContract.UserIds;
import org.sufficientlysecure.keychain.remote.AccountSettings;
import org.sufficientlysecure.keychain.remote.AppSettings;
import org.sufficientlysecure.keychain.service.OperationResults;
import org.sufficientlysecure.keychain.util.IterableIterator;
import org.sufficientlysecure.keychain.util.Log;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Date;
import java.util.HashMap;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
/** This class contains high level methods for database access. Despite its
* name, it is not only a helper but actually the main interface for all
* synchronous database operations.
*
* Operations in this class write logs (TODO). These can be obtained from the
* OperationResultParcel return values directly, but are also accumulated over
* the lifetime of the executing ProviderHelper object unless the resetLog()
* method is called to start a new one specifically.
*
*/
public class ProviderHelper {
private final Context mContext;
private final ContentResolver mContentResolver;
private OperationLog mLog;
private int mIndent;
public ProviderHelper(Context context) {
this(context, new OperationLog(), 0);
}
public ProviderHelper(Context context, OperationLog log, int indent) {
mContext = context;
mContentResolver = context.getContentResolver();
mLog = log;
mIndent = indent;
}
public void resetLog() {
if(mLog != null) {
// Start a new log (leaving the old one intact)
mLog = new OperationLog();
mIndent = 0;
}
}
public OperationLog getLog() {
return mLog;
}
public static class NotFoundException extends Exception {
public NotFoundException() {
}
public NotFoundException(String name) {
super(name);
}
}
public void log(LogLevel level, LogType type) {
if(mLog != null) {
mLog.add(level, type, null, mIndent);
}
}
public void log(LogLevel level, LogType type, String[] parameters) {
if(mLog != null) {
mLog.add(level, type, parameters, mIndent);
}
}
// If we ever switch to api level 11, we can ditch this whole mess!
public static final int FIELD_TYPE_NULL = 1;
// this is called integer to stay coherent with the constants in Cursor (api level 11)
public static final int FIELD_TYPE_INTEGER = 2;
public static final int FIELD_TYPE_FLOAT = 3;
public static final int FIELD_TYPE_STRING = 4;
public static final int FIELD_TYPE_BLOB = 5;
public Object getGenericData(Uri uri, String column, int type) throws NotFoundException {
return getGenericData(uri, new String[]{column}, new int[]{type}).get(column);
}
public HashMap<String, Object> getGenericData(Uri uri, String[] proj, int[] types)
throws NotFoundException {
Cursor cursor = mContentResolver.query(uri, proj, null, null, null);
try {
HashMap<String, Object> result = new HashMap<String, Object>(proj.length);
if (cursor != null && cursor.moveToFirst()) {
int pos = 0;
for (String p : proj) {
switch (types[pos]) {
case FIELD_TYPE_NULL:
result.put(p, cursor.isNull(pos));
break;
case FIELD_TYPE_INTEGER:
result.put(p, cursor.getLong(pos));
break;
case FIELD_TYPE_FLOAT:
result.put(p, cursor.getFloat(pos));
break;
case FIELD_TYPE_STRING:
result.put(p, cursor.getString(pos));
break;
case FIELD_TYPE_BLOB:
result.put(p, cursor.getBlob(pos));
break;
}
pos += 1;
}
}
return result;
} finally {
if (cursor != null) {
cursor.close();
}
}
}
public Object getUnifiedData(long masterKeyId, String column, int type)
throws NotFoundException {
return getUnifiedData(masterKeyId, new String[]{column}, new int[]{type}).get(column);
}
public HashMap<String, Object> getUnifiedData(long masterKeyId, String[] proj, int[] types)
throws NotFoundException {
return getGenericData(KeyRings.buildUnifiedKeyRingUri(masterKeyId), proj, types);
}
private LongSparseArray<UncachedPublicKey> getUncachedMasterKeys(Uri queryUri) {
Cursor cursor = mContentResolver.query(queryUri,
new String[]{KeyRingData.MASTER_KEY_ID, KeyRingData.KEY_RING_DATA},
null, null, null);
LongSparseArray<UncachedPublicKey> result =
new LongSparseArray<UncachedPublicKey>(cursor.getCount());
try {
if (cursor != null && cursor.moveToFirst()) do {
long masterKeyId = cursor.getLong(0);
byte[] data = cursor.getBlob(1);
if (data != null) {
try {
result.put(masterKeyId,
UncachedKeyRing.decodeFromData(data).getPublicKey());
} catch(PgpGeneralException e) {
Log.e(Constants.TAG, "Error parsing keyring, skipping " + masterKeyId, e);
} catch(IOException e) {
Log.e(Constants.TAG, "IO error, skipping keyring" + masterKeyId, e);
}
}
} while (cursor.moveToNext());
} finally {
if (cursor != null) {
cursor.close();
}
}
return result;
}
public CachedPublicKeyRing getCachedPublicKeyRing(Uri queryUri) {
return new CachedPublicKeyRing(this, queryUri);
}
public WrappedPublicKeyRing getWrappedPublicKeyRing(long id) throws NotFoundException {
return (WrappedPublicKeyRing) getWrappedKeyRing(KeyRings.buildUnifiedKeyRingUri(id), false);
}
public WrappedPublicKeyRing getWrappedPublicKeyRing(Uri queryUri) throws NotFoundException {
return (WrappedPublicKeyRing) getWrappedKeyRing(queryUri, false);
}
public WrappedSecretKeyRing getWrappedSecretKeyRing(long id) throws NotFoundException {
return (WrappedSecretKeyRing) getWrappedKeyRing(KeyRings.buildUnifiedKeyRingUri(id), true);
}
public WrappedSecretKeyRing getWrappedSecretKeyRing(Uri queryUri) throws NotFoundException {
return (WrappedSecretKeyRing) getWrappedKeyRing(queryUri, true);
}
private KeyRing getWrappedKeyRing(Uri queryUri, boolean secret) throws NotFoundException {
Cursor cursor = mContentResolver.query(queryUri,
new String[]{
// we pick from cache only information that is not easily available from keyrings
KeyRings.HAS_ANY_SECRET, KeyRings.VERIFIED,
// and of course, ring data
secret ? KeyRings.PRIVKEY_DATA : KeyRings.PUBKEY_DATA
}, null, null, null
);
try {
if (cursor != null && cursor.moveToFirst()) {
boolean hasAnySecret = cursor.getInt(0) > 0;
int verified = cursor.getInt(1);
byte[] blob = cursor.getBlob(2);
if(secret &! hasAnySecret) {
throw new NotFoundException("Secret key not available!");
}
return secret
? new WrappedSecretKeyRing(blob, hasAnySecret, verified)
: new WrappedPublicKeyRing(blob, hasAnySecret, verified);
} else {
throw new NotFoundException("Key not found!");
}
} finally {
if (cursor != null) {
cursor.close();
}
}
}
/**
* Saves PGPPublicKeyRing with its keys and userIds in DB
*/
@SuppressWarnings("unchecked")
public OperationResultParcel savePublicKeyRing(UncachedKeyRing keyRing) {
if (keyRing.isSecret()) {
log(LogLevel.ERROR, LogType.MSG_IP_BAD_TYPE_SECRET);
return new OperationResultParcel(1, mLog);
}
// Canonicalize this key, to assert a number of assumptions made about the key.
keyRing = keyRing.canonicalize(mLog);
UncachedPublicKey masterKey = keyRing.getPublicKey();
long masterKeyId = masterKey.getKeyId();
log(LogLevel.INFO, LogType.MSG_IP_IMPORTING,
new String[]{Long.toString(masterKeyId)});
mIndent += 1;
// IF there is a secret key, preserve it!
UncachedKeyRing secretRing;
try {
secretRing = getWrappedSecretKeyRing(masterKeyId).getUncached();
log(LogLevel.DEBUG, LogType.MSG_IP_PRESERVING_SECRET);
} catch (NotFoundException e) {
secretRing = null;
}
// delete old version of this keyRing, which also deletes all keys and userIds on cascade
try {
mContentResolver.delete(KeyRingData.buildPublicKeyRingUri(Long.toString(masterKeyId)), null, null);
log(LogLevel.DEBUG, LogType.MSG_IP_DELETE_OLD_OK);
} catch (UnsupportedOperationException e) {
Log.e(Constants.TAG, "Key could not be deleted! Maybe we are creating a new one!", e);
log(LogLevel.DEBUG, LogType.MSG_IP_DELETE_OLD_FAIL);
}
try {
// save all keys and userIds included in keyRing object in database
ArrayList<ContentProviderOperation> operations = new ArrayList<ContentProviderOperation>();
log(LogLevel.INFO, LogType.MSG_IP_INSERT_KEYRING);
{ // insert keyring
// insert new version of this keyRing
ContentValues values = new ContentValues();
values.put(KeyRingData.MASTER_KEY_ID, masterKeyId);
try {
values.put(KeyRingData.KEY_RING_DATA, keyRing.getEncoded());
} catch (IOException e) {
log(LogLevel.ERROR, LogType.MSG_IP_ENCODE_FAIL);
return new OperationResultParcel(1, mLog);
}
Uri uri = KeyRingData.buildPublicKeyRingUri(Long.toString(masterKeyId));
operations.add(ContentProviderOperation.newInsert(uri).withValues(values).build());
}
log(LogLevel.INFO, LogType.MSG_IP_INSERT_SUBKEYS);
mIndent += 1;
{ // insert subkeys
Uri uri = Keys.buildKeysUri(Long.toString(masterKeyId));
int rank = 0;
for (UncachedPublicKey key : new IterableIterator<UncachedPublicKey>(keyRing.getPublicKeys())) {
log(LogLevel.DEBUG, LogType.MSG_IP_SUBKEY, new String[]{
PgpKeyHelper.convertKeyIdToHex(key.getKeyId())
});
mIndent += 1;
ContentValues values = new ContentValues();
values.put(Keys.MASTER_KEY_ID, masterKeyId);
values.put(Keys.RANK, rank);
values.put(Keys.KEY_ID, key.getKeyId());
values.put(Keys.KEY_SIZE, key.getBitStrength());
values.put(Keys.ALGORITHM, key.getAlgorithm());
values.put(Keys.FINGERPRINT, key.getFingerprint());
boolean c = key.canCertify(), s = key.canSign(), e = key.canEncrypt();
values.put(Keys.CAN_CERTIFY, c);
values.put(Keys.CAN_SIGN, s);
values.put(Keys.CAN_ENCRYPT, e);
values.put(Keys.IS_REVOKED, key.isRevoked());
log(LogLevel.DEBUG, LogType.MSG_IP_SUBKEY_FLAGS, new String[] { "X" });
Date creation = key.getCreationTime();
values.put(Keys.CREATION, creation.getTime() / 1000);
if (creation.after(new Date())) {
log(LogLevel.ERROR, LogType.MSG_IP_SUBKEY_FUTURE, new String[] {
creation.toString()
});
return new OperationResultParcel(1, mLog);
}
Date expiryDate = key.getExpiryTime();
if (expiryDate != null) {
values.put(Keys.EXPIRY, expiryDate.getTime() / 1000);
if (key.isExpired()) {
log(LogLevel.INFO, LogType.MSG_IP_SUBKEY_EXPIRED, new String[] {
expiryDate.toString()
});
} else {
log(LogLevel.DEBUG, LogType.MSG_IP_SUBKEY_EXPIRES, new String[] {
expiryDate.toString()
});
}
}
operations.add(ContentProviderOperation.newInsert(uri).withValues(values).build());
++rank;
mIndent -= 1;
}
}
mIndent -= 1;
log(LogLevel.DEBUG, LogType.MSG_IP_TRUST_RETRIEVE);
// get a list of owned secret keys, for verification filtering
LongSparseArray<UncachedPublicKey> trustedKeys =
getUncachedMasterKeys(KeyRingData.buildSecretKeyRingUri());
// special case: available secret keys verify themselves!
if (secretRing != null) {
trustedKeys.put(secretRing.getMasterKeyId(), secretRing.getPublicKey());
log(LogLevel.INFO, LogType.MSG_IP_TRUST_USING_SEC, new String[]{
Integer.toString(trustedKeys.size())
});
} else {
log(LogLevel.INFO, LogType.MSG_IP_TRUST_USING, new String[] {
Integer.toString(trustedKeys.size())
});
}
// classify and order user ids. primary are moved to the front, revoked to the back,
// otherwise the order in the keyfile is preserved.
log(LogLevel.DEBUG, LogType.MSG_IP_UID_CLASSIFYING);
mIndent += 1;
List<UserIdItem> uids = new ArrayList<UserIdItem>();
for (String userId : new IterableIterator<String>(
masterKey.getUnorderedUserIds().iterator())) {
UserIdItem item = new UserIdItem();
uids.add(item);
item.userId = userId;
int unknownCerts = 0;
log(LogLevel.INFO, LogType.MSG_IP_UID_PROCESSING, new String[] { userId });
mIndent += 1;
// look through signatures for this specific key
for (WrappedSignature cert : new IterableIterator<WrappedSignature>(
masterKey.getSignaturesForId(userId))) {
long certId = cert.getKeyId();
try {
// self signature
if (certId == masterKeyId) {
cert.init(masterKey);
if (!cert.verifySignature(masterKey, userId)) {
// Bad self certification? That's kinda bad...
log(LogLevel.ERROR, LogType.MSG_IP_UID_SELF_BAD);
return new OperationResultParcel(1, mLog);
}
// if we already have a cert..
if (item.selfCert != null) {
// ..is this perchance a more recent one?
if (item.selfCert.getCreationTime().before(cert.getCreationTime())) {
log(LogLevel.DEBUG, LogType.MSG_IP_UID_SELF_NEWER);
} else {
log(LogLevel.DEBUG, LogType.MSG_IP_UID_SELF_IGNORING_OLD);
continue;
}
} else {
log(LogLevel.DEBUG, LogType.MSG_IP_UID_SELF_GOOD);
}
// save certificate as primary self-cert
item.selfCert = cert;
item.isPrimary = cert.isPrimaryUserId();
if (cert.isRevocation()) {
item.isRevoked = true;
log(LogLevel.INFO, LogType.MSG_IP_UID_REVOKED);
} else {
item.isRevoked = false;
}
}
// verify signatures from known private keys
if (trustedKeys.indexOfKey(certId) >= 0) {
UncachedPublicKey trustedKey = trustedKeys.get(certId);
cert.init(trustedKey);
if (cert.verifySignature(masterKey, userId)) {
item.trustedCerts.add(cert);
log(LogLevel.INFO, LogType.MSG_IP_UID_CERT_GOOD, new String[] {
PgpKeyHelper.convertKeyIdToHex(trustedKey.getKeyId())
});
} else {
log(LogLevel.WARN, LogType.MSG_IP_UID_CERT_BAD);
}
}
unknownCerts += 1;
} catch (PgpGeneralException e) {
log(LogLevel.WARN, LogType.MSG_IP_UID_CERT_ERROR, new String[]{
PgpKeyHelper.convertKeyIdToHex(cert.getKeyId())
});
}
}
mIndent -= 1;
if (unknownCerts > 0) {
log(LogLevel.DEBUG, LogType.MSG_IP_UID_CERTS_UNKNOWN, new String[] {
Integer.toString(unknownCerts)
});
}
}
mIndent -= 1;
log(LogLevel.INFO, LogType.MSG_IP_UID_INSERT);
// primary before regular before revoked (see UserIdItem.compareTo)
// this is a stable sort, so the order of keys is otherwise preserved.
Collections.sort(uids);
// iterate and put into db
for (int userIdRank = 0; userIdRank < uids.size(); userIdRank++) {
UserIdItem item = uids.get(userIdRank);
operations.add(buildUserIdOperations(masterKeyId, item, userIdRank));
// no self cert is bad, but allowed by the rfc...
if (item.selfCert != null) {
operations.add(buildCertOperations(
masterKeyId, userIdRank, item.selfCert, Certs.VERIFIED_SELF));
}
// don't bother with trusted certs if the uid is revoked, anyways
if (item.isRevoked) {
continue;
}
for (int i = 0; i < item.trustedCerts.size(); i++) {
operations.add(buildCertOperations(
masterKeyId, userIdRank, item.trustedCerts.get(i), Certs.VERIFIED_SECRET));
}
}
log(LogLevel.DEBUG, LogType.MSG_IP_APPLY_BATCH);
mContentResolver.applyBatch(KeychainContract.CONTENT_AUTHORITY, operations);
} catch (IOException e) {
log(LogLevel.ERROR, LogType.MSG_IP_FAIL_IO_EXC);
Log.e(Constants.TAG, "IOException during import", e);
mIndent -= 1;
return new OperationResultParcel(1, mLog);
} catch (RemoteException e) {
log(LogLevel.ERROR, LogType.MSG_IP_FAIL_REMOTE_EX);
Log.e(Constants.TAG, "RemoteException during import", e);
mIndent -= 1;
return new OperationResultParcel(1, mLog);
} catch (OperationApplicationException e) {
log(LogLevel.ERROR, LogType.MSG_IP_FAIL_OP_EX);
Log.e(Constants.TAG, "OperationApplicationException during import", e);
mIndent -= 1;
return new OperationResultParcel(1, mLog);
}
// Save the saved keyring (if any)
if (secretRing != null) {
log(LogLevel.DEBUG, LogType.MSG_IP_REINSERT_SECRET);
mIndent += 1;
saveSecretKeyRing(secretRing);
mIndent -= 1;
}
log(LogLevel.INFO, LogType.MSG_IP_SUCCESS);
mIndent -= 1;
return new OperationResultParcel(0, mLog);
}
private static class UserIdItem implements Comparable<UserIdItem> {
String userId;
boolean isPrimary = false;
boolean isRevoked = false;
WrappedSignature selfCert;
List<WrappedSignature> trustedCerts = new ArrayList<WrappedSignature>();
@Override
public int compareTo(UserIdItem o) {
// if one key is primary but the other isn't, the primary one always comes first
if (isPrimary != o.isPrimary) {
return isPrimary ? -1 : 1;
}
// revoked keys always come last!
if (isRevoked != o.isRevoked) {
return isRevoked ? 1 : -1;
}
return 0;
}
}
/**
* Saves a PGPSecretKeyRing in the DB. This will only work if a corresponding public keyring
* is already in the database!
*/
public OperationResultParcel saveSecretKeyRing(UncachedKeyRing keyRing) {
if (!keyRing.isSecret()) {
log(LogLevel.ERROR, LogType.MSG_IS_BAD_TYPE_PUBLIC);
return new OperationResultParcel(1, mLog);
}
long masterKeyId = keyRing.getMasterKeyId();
log(LogLevel.INFO, LogType.MSG_IS_IMPORTING,
new String[]{Long.toString(masterKeyId)});
// save secret keyring
try {
ContentValues values = new ContentValues();
values.put(KeyRingData.MASTER_KEY_ID, masterKeyId);
values.put(KeyRingData.KEY_RING_DATA, keyRing.getEncoded());
// insert new version of this keyRing
Uri uri = KeyRingData.buildSecretKeyRingUri(Long.toString(masterKeyId));
mContentResolver.insert(uri, values);
} catch (IOException e) {
Log.e(Constants.TAG, "Failed to encode key!", e);
log(LogLevel.ERROR, LogType.MSG_IS_IO_EXCPTION);
return new OperationResultParcel(1, mLog);
}
{
Uri uri = Keys.buildKeysUri(Long.toString(masterKeyId));
// first, mark all keys as not available
ContentValues values = new ContentValues();
values.put(Keys.HAS_SECRET, 0);
mContentResolver.update(uri, values, null, null);
values.put(Keys.HAS_SECRET, 1);
// then, mark exactly the keys we have available
log(LogLevel.INFO, LogType.MSG_IS_IMPORTING_SUBKEYS);
mIndent += 1;
Set<Long> available = keyRing.getAvailableSubkeys();
for (UncachedPublicKey sub :
new IterableIterator<UncachedPublicKey>(keyRing.getPublicKeys())) {
long id = sub.getKeyId();
if(available.contains(id)) {
int upd = mContentResolver.update(uri, values, Keys.KEY_ID + " = ?",
new String[] { Long.toString(id) });
if (upd == 1) {
log(LogLevel.DEBUG, LogType.MSG_IS_SUBKEY_OK, new String[]{
PgpKeyHelper.convertKeyIdToHex(id)
});
} else {
log(LogLevel.WARN, LogType.MSG_IS_SUBKEY_NONEXISTENT, new String[]{
PgpKeyHelper.convertKeyIdToHex(id)
});
}
} else {
log(LogLevel.INFO, LogType.MSG_IS_SUBKEY_STRIPPED, new String[]{
PgpKeyHelper.convertKeyIdToHex(id)
});
}
}
mIndent -= 1;
// this implicitly leaves all keys which were not in the secret key ring
// with has_secret = 0
}
log(LogLevel.INFO, LogType.MSG_IS_SUCCESS);
return new OperationResultParcel(0, mLog);
}
/**
* Saves (or updates) a pair of public and secret KeyRings in the database
*/
public void saveKeyRing(UncachedKeyRing pubRing, UncachedKeyRing secRing) throws IOException {
long masterKeyId = pubRing.getPublicKey().getKeyId();
// delete secret keyring (so it isn't unnecessarily saved by public-savePublicKeyRing below)
mContentResolver.delete(KeyRingData.buildSecretKeyRingUri(Long.toString(masterKeyId)), null, null);
// save public keyring
savePublicKeyRing(pubRing);
saveSecretKeyRing(secRing);
}
/**
* Build ContentProviderOperation to add PGPPublicKey to database corresponding to a keyRing
*/
private ContentProviderOperation
buildCertOperations(long masterKeyId, int rank, WrappedSignature cert, int verified)
throws IOException {
ContentValues values = new ContentValues();
values.put(Certs.MASTER_KEY_ID, masterKeyId);
values.put(Certs.RANK, rank);
values.put(Certs.KEY_ID_CERTIFIER, cert.getKeyId());
values.put(Certs.TYPE, cert.getSignatureType());
values.put(Certs.CREATION, cert.getCreationTime().getTime() / 1000);
values.put(Certs.VERIFIED, verified);
values.put(Certs.DATA, cert.getEncoded());
Uri uri = Certs.buildCertsUri(Long.toString(masterKeyId));
return ContentProviderOperation.newInsert(uri).withValues(values).build();
}
/**
* Build ContentProviderOperation to add PublicUserIds to database corresponding to a keyRing
*/
private ContentProviderOperation
buildUserIdOperations(long masterKeyId, UserIdItem item, int rank) {
ContentValues values = new ContentValues();
values.put(UserIds.MASTER_KEY_ID, masterKeyId);
values.put(UserIds.USER_ID, item.userId);
values.put(UserIds.IS_PRIMARY, item.isPrimary);
values.put(UserIds.IS_REVOKED, item.isRevoked);
values.put(UserIds.RANK, rank);
Uri uri = UserIds.buildUserIdsUri(Long.toString(masterKeyId));
return ContentProviderOperation.newInsert(uri).withValues(values).build();
}
private String getKeyRingAsArmoredString(byte[] data) throws IOException, PgpGeneralException {
UncachedKeyRing keyRing = UncachedKeyRing.decodeFromData(data);
ByteArrayOutputStream bos = new ByteArrayOutputStream();
keyRing.encodeArmored(bos, PgpHelper.getFullVersion(mContext));
String armoredKey = bos.toString("UTF-8");
Log.d(Constants.TAG, "armoredKey:" + armoredKey);
return armoredKey;
}
public String getKeyRingAsArmoredString(Uri uri)
throws NotFoundException, IOException, PgpGeneralException {
byte[] data = (byte[]) getGenericData(
uri, KeyRingData.KEY_RING_DATA, ProviderHelper.FIELD_TYPE_BLOB);
return getKeyRingAsArmoredString(data);
}
public ArrayList<String> getRegisteredApiApps() {
Cursor cursor = mContentResolver.query(ApiApps.CONTENT_URI, null, null, null, null);
ArrayList<String> packageNames = new ArrayList<String>();
try {
if (cursor != null) {
int packageNameCol = cursor.getColumnIndex(ApiApps.PACKAGE_NAME);
if (cursor.moveToFirst()) {
do {
packageNames.add(cursor.getString(packageNameCol));
} while (cursor.moveToNext());
}
}
} finally {
if (cursor != null) {
cursor.close();
}
}
return packageNames;
}
private ContentValues contentValueForApiApps(AppSettings appSettings) {
ContentValues values = new ContentValues();
values.put(ApiApps.PACKAGE_NAME, appSettings.getPackageName());
values.put(ApiApps.PACKAGE_SIGNATURE, appSettings.getPackageSignature());
return values;
}
private ContentValues contentValueForApiAccounts(AccountSettings accSettings) {
ContentValues values = new ContentValues();
values.put(KeychainContract.ApiAccounts.ACCOUNT_NAME, accSettings.getAccountName());
values.put(KeychainContract.ApiAccounts.KEY_ID, accSettings.getKeyId());
values.put(KeychainContract.ApiAccounts.COMPRESSION, accSettings.getCompression());
values.put(KeychainContract.ApiAccounts.ENCRYPTION_ALGORITHM, accSettings.getEncryptionAlgorithm());
values.put(KeychainContract.ApiAccounts.HASH_ALORITHM, accSettings.getHashAlgorithm());
return values;
}
public void insertApiApp(AppSettings appSettings) {
mContentResolver.insert(KeychainContract.ApiApps.CONTENT_URI,
contentValueForApiApps(appSettings));
}
public void insertApiAccount(Uri uri, AccountSettings accSettings) {
mContentResolver.insert(uri, contentValueForApiAccounts(accSettings));
}
public void updateApiAccount(AccountSettings accSettings, Uri uri) {
if (mContentResolver.update(uri, contentValueForApiAccounts(accSettings), null,
null) <= 0) {
throw new RuntimeException();
}
}
/**
* Must be an uri pointing to an account
*
* @param uri
* @return
*/
public AppSettings getApiAppSettings(Uri uri) {
AppSettings settings = null;
Cursor cursor = mContentResolver.query(uri, null, null, null, null);
try {
if (cursor != null && cursor.moveToFirst()) {
settings = new AppSettings();
settings.setPackageName(cursor.getString(
cursor.getColumnIndex(KeychainContract.ApiApps.PACKAGE_NAME)));
settings.setPackageSignature(cursor.getBlob(
cursor.getColumnIndex(KeychainContract.ApiApps.PACKAGE_SIGNATURE)));
}
} finally {
if (cursor != null) {
cursor.close();
}
}
return settings;
}
public AccountSettings getApiAccountSettings(Uri accountUri) {
AccountSettings settings = null;
Cursor cursor = mContentResolver.query(accountUri, null, null, null, null);
try {
if (cursor != null && cursor.moveToFirst()) {
settings = new AccountSettings();
settings.setAccountName(cursor.getString(
cursor.getColumnIndex(KeychainContract.ApiAccounts.ACCOUNT_NAME)));
settings.setKeyId(cursor.getLong(
cursor.getColumnIndex(KeychainContract.ApiAccounts.KEY_ID)));
settings.setCompression(cursor.getInt(
cursor.getColumnIndexOrThrow(KeychainContract.ApiAccounts.COMPRESSION)));
settings.setHashAlgorithm(cursor.getInt(
cursor.getColumnIndexOrThrow(KeychainContract.ApiAccounts.HASH_ALORITHM)));
settings.setEncryptionAlgorithm(cursor.getInt(
cursor.getColumnIndexOrThrow(KeychainContract.ApiAccounts.ENCRYPTION_ALGORITHM)));
}
} finally {
if (cursor != null) {
cursor.close();
}
}
return settings;
}
public Set<Long> getAllKeyIdsForApp(Uri uri) {
Set<Long> keyIds = new HashSet<Long>();
Cursor cursor = mContentResolver.query(uri, null, null, null, null);
try {
if (cursor != null) {
int keyIdColumn = cursor.getColumnIndex(KeychainContract.ApiAccounts.KEY_ID);
while (cursor.moveToNext()) {
keyIds.add(cursor.getLong(keyIdColumn));
}
}
} finally {
if (cursor != null) {
cursor.close();
}
}
return keyIds;
}
public byte[] getApiAppSignature(String packageName) {
Uri queryUri = ApiApps.buildByPackageNameUri(packageName);
String[] projection = new String[]{ApiApps.PACKAGE_SIGNATURE};
Cursor cursor = mContentResolver.query(queryUri, projection, null, null, null);
try {
byte[] signature = null;
if (cursor != null && cursor.moveToFirst()) {
int signatureCol = 0;
signature = cursor.getBlob(signatureCol);
}
return signature;
} finally {
if (cursor != null) {
cursor.close();
}
}
}
}
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