open-keychain/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/provider/KeychainProvider.java

753 lines
32 KiB
Java

/*
* Copyright (C) 2012-2014 Dominik Schürmann <dominik@dominikschuermann.de>
* Copyright (C) 2010 Thialfihar <thi@thialfihar.org>
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.sufficientlysecure.keychain.provider;
import android.content.ContentProvider;
import android.content.ContentValues;
import android.content.UriMatcher;
import android.database.Cursor;
import android.database.DatabaseUtils;
import android.database.sqlite.SQLiteConstraintException;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteQueryBuilder;
import android.net.Uri;
import android.text.TextUtils;
import org.sufficientlysecure.keychain.Constants;
import org.sufficientlysecure.keychain.provider.KeychainContract.ApiAccounts;
import org.sufficientlysecure.keychain.provider.KeychainContract.ApiApps;
import org.sufficientlysecure.keychain.provider.KeychainContract.KeyRings;
import org.sufficientlysecure.keychain.provider.KeychainContract.KeyRingData;
import org.sufficientlysecure.keychain.provider.KeychainContract.Keys;
import org.sufficientlysecure.keychain.provider.KeychainContract.Certs;
import org.sufficientlysecure.keychain.provider.KeychainContract.UserIds;
import org.sufficientlysecure.keychain.provider.KeychainDatabase.Tables;
import org.sufficientlysecure.keychain.util.Log;
import java.util.Arrays;
import java.util.HashMap;
public class KeychainProvider extends ContentProvider {
private static final int KEY_RINGS_UNIFIED = 101;
private static final int KEY_RINGS_PUBLIC = 102;
private static final int KEY_RINGS_SECRET = 103;
private static final int KEY_RING_UNIFIED = 200;
private static final int KEY_RING_KEYS = 201;
private static final int KEY_RING_USER_IDS = 202;
private static final int KEY_RING_PUBLIC = 203;
private static final int KEY_RING_SECRET = 204;
private static final int KEY_RING_CERTS = 205;
private static final int KEY_RING_CERTS_SPECIFIC = 206;
private static final int API_APPS = 301;
private static final int API_APPS_BY_PACKAGE_NAME = 303;
private static final int API_ACCOUNTS = 304;
private static final int API_ACCOUNTS_BY_ACCOUNT_NAME = 306;
private static final int KEY_RINGS_FIND_BY_EMAIL = 400;
private static final int KEY_RINGS_FIND_BY_SUBKEY = 401;
// private static final int DATA_STREAM = 501;
protected UriMatcher mUriMatcher;
/**
* Build and return a {@link UriMatcher} that catches all {@link Uri} variations supported by
* this {@link ContentProvider}.
*/
protected UriMatcher buildUriMatcher() {
final UriMatcher matcher = new UriMatcher(UriMatcher.NO_MATCH);
String authority = KeychainContract.CONTENT_AUTHORITY;
/**
* list key_rings
*
* <pre>
* key_rings/unified
* key_rings/public
* </pre>
*/
matcher.addURI(authority, KeychainContract.BASE_KEY_RINGS
+ "/" + KeychainContract.PATH_UNIFIED,
KEY_RINGS_UNIFIED);
matcher.addURI(authority, KeychainContract.BASE_KEY_RINGS
+ "/" + KeychainContract.PATH_PUBLIC,
KEY_RINGS_PUBLIC);
matcher.addURI(authority, KeychainContract.BASE_KEY_RINGS
+ "/" + KeychainContract.PATH_SECRET,
KEY_RINGS_SECRET);
/**
* find by criteria other than master key id
*
* key_rings/find/email/_
* key_rings/find/subkey/_
*
*/
matcher.addURI(authority, KeychainContract.BASE_KEY_RINGS + "/"
+ KeychainContract.PATH_FIND + "/" + KeychainContract.PATH_BY_EMAIL + "/*",
KEY_RINGS_FIND_BY_EMAIL);
matcher.addURI(authority, KeychainContract.BASE_KEY_RINGS + "/"
+ KeychainContract.PATH_FIND + "/" + KeychainContract.PATH_BY_SUBKEY + "/*",
KEY_RINGS_FIND_BY_SUBKEY);
/**
* list key_ring specifics
*
* <pre>
* key_rings/_/unified
* key_rings/_/keys
* key_rings/_/user_ids
* key_rings/_/public
* key_rings/_/secret
* key_rings/_/certs
* key_rings/_/certs/_/_
* </pre>
*/
matcher.addURI(authority, KeychainContract.BASE_KEY_RINGS + "/*/"
+ KeychainContract.PATH_UNIFIED,
KEY_RING_UNIFIED);
matcher.addURI(authority, KeychainContract.BASE_KEY_RINGS + "/*/"
+ KeychainContract.PATH_KEYS,
KEY_RING_KEYS);
matcher.addURI(authority, KeychainContract.BASE_KEY_RINGS + "/*/"
+ KeychainContract.PATH_USER_IDS,
KEY_RING_USER_IDS);
matcher.addURI(authority, KeychainContract.BASE_KEY_RINGS + "/*/"
+ KeychainContract.PATH_PUBLIC,
KEY_RING_PUBLIC);
matcher.addURI(authority, KeychainContract.BASE_KEY_RINGS + "/*/"
+ KeychainContract.PATH_SECRET,
KEY_RING_SECRET);
matcher.addURI(authority, KeychainContract.BASE_KEY_RINGS + "/*/"
+ KeychainContract.PATH_CERTS,
KEY_RING_CERTS);
matcher.addURI(authority, KeychainContract.BASE_KEY_RINGS + "/*/"
+ KeychainContract.PATH_CERTS + "/*/*",
KEY_RING_CERTS_SPECIFIC);
/**
* API apps
*
* <pre>
* api_apps
* api_apps/_ (package name)
*
* api_apps/_/accounts
* api_apps/_/accounts/_ (account name)
* </pre>
*/
matcher.addURI(authority, KeychainContract.BASE_API_APPS, API_APPS);
matcher.addURI(authority, KeychainContract.BASE_API_APPS + "/*", API_APPS_BY_PACKAGE_NAME);
matcher.addURI(authority, KeychainContract.BASE_API_APPS + "/*/"
+ KeychainContract.PATH_ACCOUNTS, API_ACCOUNTS);
matcher.addURI(authority, KeychainContract.BASE_API_APPS + "/*/"
+ KeychainContract.PATH_ACCOUNTS + "/*", API_ACCOUNTS_BY_ACCOUNT_NAME);
/**
* data stream
*
* <pre>
* data / _
* </pre>
*/
// matcher.addURI(authority, KeychainContract.BASE_DATA + "/*", DATA_STREAM);
return matcher;
}
private KeychainDatabase mKeychainDatabase;
/**
* {@inheritDoc}
*/
@Override
public boolean onCreate() {
mUriMatcher = buildUriMatcher();
return true;
}
public KeychainDatabase getDb() {
if(mKeychainDatabase == null)
mKeychainDatabase = new KeychainDatabase(getContext());
return mKeychainDatabase;
}
/**
* {@inheritDoc}
*/
@Override
public String getType(Uri uri) {
final int match = mUriMatcher.match(uri);
switch (match) {
case KEY_RING_PUBLIC:
return KeyRings.CONTENT_ITEM_TYPE;
case KEY_RING_KEYS:
return Keys.CONTENT_TYPE;
case KEY_RING_USER_IDS:
return UserIds.CONTENT_TYPE;
case KEY_RING_SECRET:
return KeyRings.CONTENT_ITEM_TYPE;
case API_APPS:
return ApiApps.CONTENT_TYPE;
case API_APPS_BY_PACKAGE_NAME:
return ApiApps.CONTENT_ITEM_TYPE;
case API_ACCOUNTS:
return ApiAccounts.CONTENT_TYPE;
case API_ACCOUNTS_BY_ACCOUNT_NAME:
return ApiAccounts.CONTENT_ITEM_TYPE;
default:
throw new UnsupportedOperationException("Unknown uri: " + uri);
}
}
/**
* {@inheritDoc}
*/
@Override
public Cursor query(Uri uri, String[] projection, String selection, String[] selectionArgs,
String sortOrder) {
Log.v(Constants.TAG, "query(uri=" + uri + ", proj=" + Arrays.toString(projection) + ")");
SQLiteQueryBuilder qb = new SQLiteQueryBuilder();
int match = mUriMatcher.match(uri);
// all query() parameters, for good measure
String groupBy = null, having = null;
switch (match) {
case KEY_RING_UNIFIED:
case KEY_RINGS_UNIFIED:
case KEY_RINGS_FIND_BY_EMAIL:
case KEY_RINGS_FIND_BY_SUBKEY: {
HashMap<String, String> projectionMap = new HashMap<String, String>();
projectionMap.put(KeyRings._ID, Tables.KEYS + ".oid AS _id");
projectionMap.put(KeyRings.MASTER_KEY_ID, Tables.KEYS + "." + Keys.MASTER_KEY_ID);
projectionMap.put(KeyRings.KEY_ID, Keys.KEY_ID);
projectionMap.put(KeyRings.KEY_SIZE, Keys.KEY_SIZE);
projectionMap.put(KeyRings.IS_REVOKED, Tables.KEYS + "." + Keys.IS_REVOKED);
projectionMap.put(KeyRings.CAN_CERTIFY, Keys.CAN_CERTIFY);
projectionMap.put(KeyRings.CAN_ENCRYPT, Keys.CAN_ENCRYPT);
projectionMap.put(KeyRings.CAN_SIGN, Keys.CAN_SIGN);
projectionMap.put(KeyRings.CREATION, Tables.KEYS + "." + Keys.CREATION);
projectionMap.put(KeyRings.EXPIRY, Keys.EXPIRY);
projectionMap.put(KeyRings.ALGORITHM, Keys.ALGORITHM);
projectionMap.put(KeyRings.FINGERPRINT, Keys.FINGERPRINT);
projectionMap.put(KeyRings.USER_ID, UserIds.USER_ID);
projectionMap.put(KeyRings.VERIFIED, KeyRings.VERIFIED);
projectionMap.put(KeyRings.HAS_SECRET, "(" + Tables.KEY_RINGS_SECRET + "." + KeyRings.MASTER_KEY_ID + " IS NOT NULL) AS " + KeyRings.HAS_SECRET);
qb.setProjectionMap(projectionMap);
qb.setTables(
Tables.KEYS
+ " INNER JOIN " + Tables.USER_IDS + " ON ("
+ Tables.KEYS + "." + Keys.MASTER_KEY_ID
+ " = "
+ Tables.USER_IDS + "." + UserIds.MASTER_KEY_ID
+ " AND " + Tables.USER_IDS + "." + UserIds.RANK + " = 0"
+ ") LEFT JOIN " + Tables.KEY_RINGS_SECRET + " ON ("
+ Tables.KEYS + "." + Keys.MASTER_KEY_ID
+ " = "
+ Tables.KEY_RINGS_SECRET + "." + KeyRings.MASTER_KEY_ID
+ ") LEFT JOIN " + Tables.CERTS + " ON ("
+ Tables.KEYS + "." + Keys.MASTER_KEY_ID
+ " = "
+ Tables.CERTS + "." + KeyRings.MASTER_KEY_ID
+ " AND " + Tables.CERTS + "." + Certs.VERIFIED
+ " = " + Certs.VERIFIED_SECRET
+ ")"
);
qb.appendWhere(Tables.KEYS + "." + Keys.RANK + " = 0");
// in case there are multiple verifying certificates
groupBy = Tables.KEYS + "." + Keys.MASTER_KEY_ID;
switch(match) {
case KEY_RING_UNIFIED: {
qb.appendWhere(" AND " + Tables.KEYS + "." + Keys.MASTER_KEY_ID + " = ");
qb.appendWhereEscapeString(uri.getPathSegments().get(1));
break;
}
case KEY_RINGS_FIND_BY_SUBKEY: {
try {
String subkey = Long.valueOf(uri.getLastPathSegment()).toString();
qb.appendWhere(" AND EXISTS ("
+ " SELECT 1 FROM " + Tables.KEYS + " AS tmp"
+ " WHERE tmp." + UserIds.MASTER_KEY_ID
+ " = " + Tables.KEYS + "." + Keys.MASTER_KEY_ID
+ " AND tmp." + Keys.KEY_ID + " = " + subkey + ""
+ ")");
} catch(NumberFormatException e) {
Log.e(Constants.TAG, "Malformed find by subkey query!", e);
qb.appendWhere(" AND 0");
}
break;
}
case KEY_RINGS_FIND_BY_EMAIL: {
String chunks[] = uri.getLastPathSegment().split(" *, *");
boolean gotCondition = false;
String emailWhere = "";
// JAVA ♥
for (int i = 0; i < chunks.length; ++i) {
if (chunks[i].length() == 0) {
continue;
}
if (i != 0) {
emailWhere += " OR ";
}
emailWhere += "tmp." + UserIds.USER_ID + " LIKE ";
// match '*<email>', so it has to be at the *end* of the user id
emailWhere += DatabaseUtils.sqlEscapeString("%<" + chunks[i] + ">");
gotCondition = true;
}
if(gotCondition) {
qb.appendWhere(" AND EXISTS ("
+ " SELECT 1 FROM " + Tables.USER_IDS + " AS tmp"
+ " WHERE tmp." + UserIds.MASTER_KEY_ID
+ " = " + Tables.KEYS + "." + Keys.MASTER_KEY_ID
+ " AND (" + emailWhere + ")"
+ ")");
} else {
// TODO better way to do this?
Log.e(Constants.TAG, "Malformed find by email query!");
qb.appendWhere(" AND 0");
}
break;
}
}
if (TextUtils.isEmpty(sortOrder)) {
sortOrder =
Tables.KEY_RINGS_SECRET + "." + KeyRings.MASTER_KEY_ID + " IS NULL ASC, "
+ Tables.USER_IDS + "." + UserIds.USER_ID + " ASC";
}
// uri to watch is all /key_rings/
uri = KeyRings.CONTENT_URI;
break;
}
case KEY_RING_KEYS: {
HashMap<String, String> projectionMap = new HashMap<String, String>();
projectionMap.put(Keys._ID, Tables.KEYS + ".oid AS _id");
projectionMap.put(Keys.MASTER_KEY_ID, Tables.KEYS + "." + Keys.MASTER_KEY_ID);
projectionMap.put(Keys.RANK, Tables.KEYS + "." + Keys.RANK);
projectionMap.put(Keys.KEY_ID, Keys.KEY_ID);
projectionMap.put(Keys.KEY_SIZE, Keys.KEY_SIZE);
projectionMap.put(Keys.IS_REVOKED, Keys.IS_REVOKED);
projectionMap.put(Keys.CAN_CERTIFY, Keys.CAN_CERTIFY);
projectionMap.put(Keys.CAN_ENCRYPT, Keys.CAN_ENCRYPT);
projectionMap.put(Keys.CAN_SIGN, Keys.CAN_SIGN);
projectionMap.put(Keys.CREATION, Keys.CREATION);
projectionMap.put(Keys.EXPIRY, Keys.EXPIRY);
projectionMap.put(Keys.ALGORITHM, Keys.ALGORITHM);
projectionMap.put(Keys.FINGERPRINT, Keys.FINGERPRINT);
qb.setProjectionMap(projectionMap);
qb.setTables(Tables.KEYS);
qb.appendWhere(Keys.MASTER_KEY_ID + " = ");
qb.appendWhereEscapeString(uri.getPathSegments().get(1));
break;
}
case KEY_RING_USER_IDS: {
HashMap<String, String> projectionMap = new HashMap<String, String>();
projectionMap.put(UserIds._ID, Tables.USER_IDS + ".oid AS _id");
projectionMap.put(UserIds.MASTER_KEY_ID, Tables.USER_IDS + "." + UserIds.MASTER_KEY_ID);
projectionMap.put(UserIds.USER_ID, Tables.USER_IDS + "." + UserIds.USER_ID);
projectionMap.put(UserIds.RANK, Tables.USER_IDS + "." + UserIds.RANK);
projectionMap.put(UserIds.IS_PRIMARY, Tables.USER_IDS + "." + UserIds.IS_PRIMARY);
projectionMap.put(UserIds.IS_REVOKED, Tables.USER_IDS + "." + UserIds.IS_REVOKED);
// we take the minimum (>0) here, where "1" is "verified by known secret key"
projectionMap.put(UserIds.VERIFIED, "MIN(" + Certs.VERIFIED + ") AS " + UserIds.VERIFIED);
qb.setProjectionMap(projectionMap);
qb.setTables(Tables.USER_IDS
+ " LEFT JOIN " + Tables.CERTS + " ON ("
+ Tables.USER_IDS + "." + UserIds.MASTER_KEY_ID + " = "
+ Tables.CERTS + "." + Certs.MASTER_KEY_ID
+ " AND " + Tables.USER_IDS + "." + UserIds.RANK + " = "
+ Tables.CERTS + "." + Certs.RANK
+ " AND " + Tables.CERTS + "." + Certs.VERIFIED + " > 0"
+ ")");
groupBy = Tables.USER_IDS + "." + UserIds.RANK;
qb.appendWhere(Tables.USER_IDS + "." + UserIds.MASTER_KEY_ID + " = ");
qb.appendWhereEscapeString(uri.getPathSegments().get(1));
if (TextUtils.isEmpty(sortOrder)) {
sortOrder = Tables.USER_IDS + "." + UserIds.RANK + " ASC";
}
break;
}
case KEY_RINGS_PUBLIC:
case KEY_RING_PUBLIC: {
HashMap<String, String> projectionMap = new HashMap<String, String>();
projectionMap.put(KeyRingData._ID, Tables.KEY_RINGS_PUBLIC + ".oid AS _id");
projectionMap.put(KeyRingData.MASTER_KEY_ID, KeyRingData.MASTER_KEY_ID);
projectionMap.put(KeyRingData.KEY_RING_DATA, KeyRingData.KEY_RING_DATA);
qb.setProjectionMap(projectionMap);
qb.setTables(Tables.KEY_RINGS_PUBLIC);
if(match == KEY_RING_PUBLIC) {
qb.appendWhere(KeyRings.MASTER_KEY_ID + " = ");
qb.appendWhereEscapeString(uri.getPathSegments().get(1));
}
break;
}
case KEY_RINGS_SECRET:
case KEY_RING_SECRET: {
HashMap<String, String> projectionMap = new HashMap<String, String>();
projectionMap.put(KeyRingData._ID, Tables.KEY_RINGS_SECRET + ".oid AS _id");
projectionMap.put(KeyRingData.MASTER_KEY_ID, KeyRingData.MASTER_KEY_ID);
projectionMap.put(KeyRingData.KEY_RING_DATA, KeyRingData.KEY_RING_DATA);
qb.setProjectionMap(projectionMap);
qb.setTables(Tables.KEY_RINGS_SECRET);
if(match == KEY_RING_SECRET) {
qb.appendWhere(KeyRings.MASTER_KEY_ID + " = ");
qb.appendWhereEscapeString(uri.getPathSegments().get(1));
}
break;
}
case KEY_RING_CERTS:
case KEY_RING_CERTS_SPECIFIC: {
HashMap<String, String> projectionMap = new HashMap<String, String>();
projectionMap.put(Certs._ID, Tables.CERTS + ".oid AS " + Certs._ID);
projectionMap.put(Certs.MASTER_KEY_ID, Tables.CERTS + "." + Certs.MASTER_KEY_ID);
projectionMap.put(Certs.RANK, Tables.CERTS + "." + Certs.RANK);
projectionMap.put(Certs.VERIFIED, Tables.CERTS + "." + Certs.VERIFIED);
projectionMap.put(Certs.TYPE, Tables.CERTS + "." + Certs.TYPE);
projectionMap.put(Certs.CREATION, Tables.CERTS + "." + Certs.CREATION);
projectionMap.put(Certs.KEY_ID_CERTIFIER, Tables.CERTS + "." + Certs.KEY_ID_CERTIFIER);
projectionMap.put(Certs.DATA, Tables.CERTS + "." + Certs.DATA);
projectionMap.put(Certs.USER_ID, Tables.USER_IDS + "." + UserIds.USER_ID);
projectionMap.put(Certs.SIGNER_UID, "signer." + UserIds.USER_ID + " AS " + Certs.SIGNER_UID);
qb.setProjectionMap(projectionMap);
qb.setTables(Tables.CERTS
+ " JOIN " + Tables.USER_IDS + " ON ("
+ Tables.CERTS + "." + Certs.MASTER_KEY_ID + " = "
+ Tables.USER_IDS + "." + UserIds.MASTER_KEY_ID
+ " AND "
+ Tables.CERTS + "." + Certs.RANK + " = "
+ Tables.USER_IDS + "." + UserIds.RANK
+ ") LEFT JOIN " + Tables.USER_IDS + " AS signer ON ("
+ Tables.CERTS + "." + Certs.KEY_ID_CERTIFIER + " = "
+ "signer." + UserIds.MASTER_KEY_ID
+ " AND "
+ "signer." + Keys.RANK + " = 0"
+ ")");
groupBy = Tables.CERTS + "." + Certs.RANK + ", "
+ Tables.CERTS + "." + Certs.KEY_ID_CERTIFIER;
qb.appendWhere(Tables.CERTS + "." + Certs.MASTER_KEY_ID + " = ");
qb.appendWhereEscapeString(uri.getPathSegments().get(1));
if(match == KEY_RING_CERTS_SPECIFIC) {
qb.appendWhere(" AND " + Tables.CERTS + "." + Certs.RANK + " = ");
qb.appendWhereEscapeString(uri.getPathSegments().get(3));
qb.appendWhere(" AND " + Tables.CERTS + "." + Certs.KEY_ID_CERTIFIER+ " = ");
qb.appendWhereEscapeString(uri.getPathSegments().get(4));
}
break;
}
case API_APPS:
qb.setTables(Tables.API_APPS);
break;
case API_APPS_BY_PACKAGE_NAME:
qb.setTables(Tables.API_APPS);
qb.appendWhere(ApiApps.PACKAGE_NAME + " = ");
qb.appendWhereEscapeString(uri.getLastPathSegment());
break;
case API_ACCOUNTS:
qb.setTables(Tables.API_ACCOUNTS);
qb.appendWhere(Tables.API_ACCOUNTS + "." + ApiAccounts.PACKAGE_NAME + " = ");
qb.appendWhereEscapeString(uri.getPathSegments().get(1));
break;
case API_ACCOUNTS_BY_ACCOUNT_NAME:
qb.setTables(Tables.API_ACCOUNTS);
qb.appendWhere(Tables.API_ACCOUNTS + "." + ApiAccounts.PACKAGE_NAME + " = ");
qb.appendWhereEscapeString(uri.getPathSegments().get(1));
qb.appendWhere(" AND " + Tables.API_ACCOUNTS + "." + ApiAccounts.ACCOUNT_NAME + " = ");
qb.appendWhereEscapeString(uri.getLastPathSegment());
break;
default:
throw new IllegalArgumentException("Unknown URI " + uri + " (" + match + ")");
}
// If no sort order is specified use the default
String orderBy;
if (TextUtils.isEmpty(sortOrder)) {
orderBy = null;
} else {
orderBy = sortOrder;
}
SQLiteDatabase db = getDb().getReadableDatabase();
Cursor c = qb.query(db, projection, selection, selectionArgs, groupBy, having, orderBy);
// Tell the cursor what uri to watch, so it knows when its source data changes
c.setNotificationUri(getContext().getContentResolver(), uri);
if (Constants.DEBUG) {
Log.d(Constants.TAG,
"Query: "
+ qb.buildQuery(projection, selection, selectionArgs, null, null,
orderBy, null));
Log.d(Constants.TAG, "Cursor: " + DatabaseUtils.dumpCursorToString(c));
}
return c;
}
/**
* {@inheritDoc}
*/
@Override
public Uri insert(Uri uri, ContentValues values) {
Log.d(Constants.TAG, "insert(uri=" + uri + ", values=" + values.toString() + ")");
final SQLiteDatabase db = getDb().getWritableDatabase();
Uri rowUri = null;
Long keyId = null;
try {
final int match = mUriMatcher.match(uri);
switch (match) {
case KEY_RING_PUBLIC:
db.insertOrThrow(Tables.KEY_RINGS_PUBLIC, null, values);
keyId = values.getAsLong(KeyRings.MASTER_KEY_ID);
break;
case KEY_RING_SECRET:
db.insertOrThrow(Tables.KEY_RINGS_SECRET, null, values);
keyId = values.getAsLong(KeyRings.MASTER_KEY_ID);
break;
case KEY_RING_KEYS:
Log.d(Constants.TAG, "keys");
db.insertOrThrow(Tables.KEYS, null, values);
keyId = values.getAsLong(Keys.MASTER_KEY_ID);
break;
case KEY_RING_USER_IDS:
db.insertOrThrow(Tables.USER_IDS, null, values);
keyId = values.getAsLong(UserIds.MASTER_KEY_ID);
break;
case KEY_RING_CERTS:
// we replace here, keeping only the latest signature
// TODO this would be better handled in saveKeyRing directly!
db.replaceOrThrow(Tables.CERTS, null, values);
keyId = values.getAsLong(Certs.MASTER_KEY_ID);
break;
case API_APPS:
db.insertOrThrow(Tables.API_APPS, null, values);
break;
case API_ACCOUNTS:
// set foreign key automatically based on given uri
// e.g., api_apps/com.example.app/accounts/
String packageName = uri.getPathSegments().get(1);
values.put(ApiAccounts.PACKAGE_NAME, packageName);
Log.d(Constants.TAG, "provider packageName: " + packageName);
db.insertOrThrow(Tables.API_ACCOUNTS, null, values);
// TODO: this is wrong:
// rowUri = ApiAccounts.buildIdUri(Long.toString(rowId));
break;
default:
throw new UnsupportedOperationException("Unknown uri: " + uri);
}
if(keyId != null) {
uri = KeyRings.buildGenericKeyRingUri(keyId.toString());
rowUri = uri;
}
// notify of changes in db
getContext().getContentResolver().notifyChange(uri, null);
} catch (SQLiteConstraintException e) {
Log.e(Constants.TAG, "Constraint exception on insert! Entry already existing?", e);
}
return rowUri;
}
/**
* {@inheritDoc}
*/
@Override
public int delete(Uri uri, String additionalSelection, String[] selectionArgs) {
Log.v(Constants.TAG, "delete(uri=" + uri + ")");
final SQLiteDatabase db = getDb().getWritableDatabase();
int count;
final int match = mUriMatcher.match(uri);
switch (match) {
case KEY_RING_PUBLIC: {
@SuppressWarnings("ConstantConditions") // ensured by uriMatcher above
String selection = KeyRings.MASTER_KEY_ID + " = " + uri.getPathSegments().get(1);
if (!TextUtils.isEmpty(additionalSelection)) {
selection += " AND (" + additionalSelection + ")";
}
// corresponding keys and userIds are deleted by ON DELETE CASCADE
count = db.delete(Tables.KEY_RINGS_PUBLIC, selection, selectionArgs);
uri = KeyRings.buildGenericKeyRingUri(uri.getPathSegments().get(1));
break;
}
case KEY_RING_SECRET: {
@SuppressWarnings("ConstantConditions") // ensured by uriMatcher above
String selection = KeyRings.MASTER_KEY_ID + " = " + uri.getPathSegments().get(1);
if (!TextUtils.isEmpty(additionalSelection)) {
selection += " AND (" + additionalSelection + ")";
}
count = db.delete(Tables.KEY_RINGS_SECRET, selection, selectionArgs);
uri = KeyRings.buildGenericKeyRingUri(uri.getPathSegments().get(1));
break;
}
case API_APPS_BY_PACKAGE_NAME:
count = db.delete(Tables.API_APPS, buildDefaultApiAppsSelection(uri, additionalSelection),
selectionArgs);
break;
case API_ACCOUNTS_BY_ACCOUNT_NAME:
count = db.delete(Tables.API_ACCOUNTS, buildDefaultApiAccountsSelection(uri, additionalSelection),
selectionArgs);
break;
default:
throw new UnsupportedOperationException("Unknown uri: " + uri);
}
// notify of changes in db
getContext().getContentResolver().notifyChange(uri, null);
return count;
}
/**
* {@inheritDoc}
*/
@Override
public int update(Uri uri, ContentValues values, String selection, String[] selectionArgs) {
Log.v(Constants.TAG, "update(uri=" + uri + ", values=" + values.toString() + ")");
final SQLiteDatabase db = mKeychainDatabase.getWritableDatabase();
String defaultSelection = null;
int count = 0;
try {
final int match = mUriMatcher.match(uri);
switch (match) {
case API_APPS_BY_PACKAGE_NAME:
count = db.update(Tables.API_APPS, values,
buildDefaultApiAppsSelection(uri, selection), selectionArgs);
break;
case API_ACCOUNTS_BY_ACCOUNT_NAME:
count = db.update(Tables.API_ACCOUNTS, values,
buildDefaultApiAccountsSelection(uri, selection), selectionArgs);
break;
default:
throw new UnsupportedOperationException("Unknown uri: " + uri);
}
// notify of changes in db
getContext().getContentResolver().notifyChange(uri, null);
} catch (SQLiteConstraintException e) {
Log.e(Constants.TAG, "Constraint exception on update! Entry already existing?");
}
return count;
}
/**
* Build default selection statement for API apps. If no extra selection is specified only build
* where clause with rowId
*
* @param uri
* @param selection
* @return
*/
private String buildDefaultApiAppsSelection(Uri uri, String selection) {
String packageName = DatabaseUtils.sqlEscapeString(uri.getLastPathSegment());
String andSelection = "";
if (!TextUtils.isEmpty(selection)) {
andSelection = " AND (" + selection + ")";
}
return ApiApps.PACKAGE_NAME + "=" + packageName + andSelection;
}
private String buildDefaultApiAccountsSelection(Uri uri, String selection) {
String packageName = DatabaseUtils.sqlEscapeString(uri.getPathSegments().get(1));
String accountName = DatabaseUtils.sqlEscapeString(uri.getLastPathSegment());
String andSelection = "";
if (!TextUtils.isEmpty(selection)) {
andSelection = " AND (" + selection + ")";
}
return ApiAccounts.PACKAGE_NAME + "=" + packageName + " AND "
+ ApiAccounts.ACCOUNT_NAME + "=" + accountName
+ andSelection;
}
}