| /* |
| * Copyright (C) 2009 The Android Open Source Project |
| * |
| * 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 com.android.email.provider; |
| |
| import android.content.ContentProvider; |
| import android.content.ContentProviderOperation; |
| import android.content.ContentProviderResult; |
| import android.content.ContentResolver; |
| import android.content.ContentUris; |
| import android.content.ContentValues; |
| import android.content.Context; |
| import android.content.Intent; |
| import android.content.OperationApplicationException; |
| import android.content.UriMatcher; |
| import android.database.ContentObserver; |
| import android.database.Cursor; |
| import android.database.MatrixCursor; |
| import android.database.sqlite.SQLiteDatabase; |
| import android.database.sqlite.SQLiteException; |
| import android.net.Uri; |
| import android.text.TextUtils; |
| import android.util.Log; |
| |
| import com.android.email.Email; |
| import com.android.email.Preferences; |
| import com.android.email.provider.ContentCache.CacheToken; |
| import com.android.email.service.AttachmentDownloadService; |
| import com.android.emailcommon.Logging; |
| import com.android.emailcommon.provider.Account; |
| import com.android.emailcommon.provider.EmailContent; |
| import com.android.emailcommon.provider.EmailContent.AccountColumns; |
| import com.android.emailcommon.provider.EmailContent.Attachment; |
| import com.android.emailcommon.provider.EmailContent.AttachmentColumns; |
| import com.android.emailcommon.provider.EmailContent.Body; |
| import com.android.emailcommon.provider.EmailContent.BodyColumns; |
| import com.android.emailcommon.provider.EmailContent.MailboxColumns; |
| import com.android.emailcommon.provider.EmailContent.Message; |
| import com.android.emailcommon.provider.EmailContent.MessageColumns; |
| import com.android.emailcommon.provider.EmailContent.PolicyColumns; |
| import com.android.emailcommon.provider.HostAuth; |
| import com.android.emailcommon.provider.Mailbox; |
| import com.android.emailcommon.provider.Policy; |
| import com.android.emailcommon.provider.QuickResponse; |
| import com.google.common.annotations.VisibleForTesting; |
| |
| import java.io.File; |
| import java.util.ArrayList; |
| import java.util.Arrays; |
| import java.util.Collection; |
| import java.util.HashMap; |
| import java.util.List; |
| import java.util.Map; |
| |
| /** |
| * @author mblank |
| * |
| */ |
| public class EmailProvider extends ContentProvider { |
| |
| private static final String TAG = "EmailProvider"; |
| |
| public static final String EMAIL_APP_MIME_TYPE = "application/email-ls"; |
| |
| protected static final String DATABASE_NAME = "EmailProvider.db"; |
| protected static final String BODY_DATABASE_NAME = "EmailProviderBody.db"; |
| protected static final String BACKUP_DATABASE_NAME = "EmailProviderBackup.db"; |
| |
| public static final String ACTION_ATTACHMENT_UPDATED = "com.android.email.ATTACHMENT_UPDATED"; |
| public static final String ATTACHMENT_UPDATED_EXTRA_FLAGS = |
| "com.android.email.ATTACHMENT_UPDATED_FLAGS"; |
| |
| /** |
| * Notifies that changes happened. Certain UI components, e.g., widgets, can register for this |
| * {@link android.content.Intent} and update accordingly. However, this can be very broad and |
| * is NOT the preferred way of getting notification. |
| */ |
| public static final String ACTION_NOTIFY_MESSAGE_LIST_DATASET_CHANGED = |
| "com.android.email.MESSAGE_LIST_DATASET_CHANGED"; |
| |
| public static final String EMAIL_MESSAGE_MIME_TYPE = |
| "vnd.android.cursor.item/email-message"; |
| public static final String EMAIL_ATTACHMENT_MIME_TYPE = |
| "vnd.android.cursor.item/email-attachment"; |
| |
| public static final Uri INTEGRITY_CHECK_URI = |
| Uri.parse("content://" + EmailContent.AUTHORITY + "/integrityCheck"); |
| public static final Uri ACCOUNT_BACKUP_URI = |
| Uri.parse("content://" + EmailContent.AUTHORITY + "/accountBackup"); |
| public static final Uri FOLDER_STATUS_URI = |
| Uri.parse("content://" + EmailContent.AUTHORITY + "/status"); |
| public static final Uri FOLDER_REFRESH_URI = |
| Uri.parse("content://" + EmailContent.AUTHORITY + "/refresh"); |
| |
| /** Appended to the notification URI for delete operations */ |
| public static final String NOTIFICATION_OP_DELETE = "delete"; |
| /** Appended to the notification URI for insert operations */ |
| public static final String NOTIFICATION_OP_INSERT = "insert"; |
| /** Appended to the notification URI for update operations */ |
| public static final String NOTIFICATION_OP_UPDATE = "update"; |
| |
| // Definitions for our queries looking for orphaned messages |
| private static final String[] ORPHANS_PROJECTION |
| = new String[] {MessageColumns.ID, MessageColumns.MAILBOX_KEY}; |
| private static final int ORPHANS_ID = 0; |
| private static final int ORPHANS_MAILBOX_KEY = 1; |
| |
| private static final String WHERE_ID = EmailContent.RECORD_ID + "=?"; |
| |
| // This is not a hard limit on accounts, per se, but beyond this, we can't guarantee that all |
| // critical mailboxes, host auth's, accounts, and policies are cached |
| private static final int MAX_CACHED_ACCOUNTS = 16; |
| // Inbox, Drafts, Sent, Outbox, Trash, and Search (these boxes are cached when possible) |
| private static final int NUM_ALWAYS_CACHED_MAILBOXES = 6; |
| |
| // We'll cache the following four tables; sizes are best estimates of effective values |
| private final ContentCache mCacheAccount = |
| new ContentCache("Account", Account.CONTENT_PROJECTION, MAX_CACHED_ACCOUNTS); |
| private final ContentCache mCacheHostAuth = |
| new ContentCache("HostAuth", HostAuth.CONTENT_PROJECTION, MAX_CACHED_ACCOUNTS * 2); |
| /*package*/ final ContentCache mCacheMailbox = |
| new ContentCache("Mailbox", Mailbox.CONTENT_PROJECTION, |
| MAX_CACHED_ACCOUNTS * (NUM_ALWAYS_CACHED_MAILBOXES + 2)); |
| private final ContentCache mCacheMessage = |
| new ContentCache("Message", Message.CONTENT_PROJECTION, 8); |
| private final ContentCache mCachePolicy = |
| new ContentCache("Policy", Policy.CONTENT_PROJECTION, MAX_CACHED_ACCOUNTS); |
| |
| private static final int ACCOUNT_BASE = 0; |
| private static final int ACCOUNT = ACCOUNT_BASE; |
| private static final int ACCOUNT_ID = ACCOUNT_BASE + 1; |
| private static final int ACCOUNT_ID_ADD_TO_FIELD = ACCOUNT_BASE + 2; |
| private static final int ACCOUNT_RESET_NEW_COUNT = ACCOUNT_BASE + 3; |
| private static final int ACCOUNT_RESET_NEW_COUNT_ID = ACCOUNT_BASE + 4; |
| private static final int ACCOUNT_DEFAULT_ID = ACCOUNT_BASE + 5; |
| |
| private static final int MAILBOX_BASE = 0x1000; |
| private static final int MAILBOX = MAILBOX_BASE; |
| private static final int MAILBOX_ID = MAILBOX_BASE + 1; |
| private static final int MAILBOX_ID_FROM_ACCOUNT_AND_TYPE = MAILBOX_BASE + 2; |
| private static final int MAILBOX_ID_ADD_TO_FIELD = MAILBOX_BASE + 3; |
| private static final int MAILBOX_NOTIFICATION = MAILBOX_BASE + 4; |
| private static final int MAILBOX_MOST_RECENT_MESSAGE = MAILBOX_BASE + 5; |
| |
| private static final int MESSAGE_BASE = 0x2000; |
| private static final int MESSAGE = MESSAGE_BASE; |
| private static final int MESSAGE_ID = MESSAGE_BASE + 1; |
| private static final int SYNCED_MESSAGE_ID = MESSAGE_BASE + 2; |
| |
| private static final int ATTACHMENT_BASE = 0x3000; |
| private static final int ATTACHMENT = ATTACHMENT_BASE; |
| private static final int ATTACHMENT_ID = ATTACHMENT_BASE + 1; |
| private static final int ATTACHMENTS_MESSAGE_ID = ATTACHMENT_BASE + 2; |
| |
| private static final int HOSTAUTH_BASE = 0x4000; |
| private static final int HOSTAUTH = HOSTAUTH_BASE; |
| private static final int HOSTAUTH_ID = HOSTAUTH_BASE + 1; |
| |
| private static final int UPDATED_MESSAGE_BASE = 0x5000; |
| private static final int UPDATED_MESSAGE = UPDATED_MESSAGE_BASE; |
| private static final int UPDATED_MESSAGE_ID = UPDATED_MESSAGE_BASE + 1; |
| |
| private static final int DELETED_MESSAGE_BASE = 0x6000; |
| private static final int DELETED_MESSAGE = DELETED_MESSAGE_BASE; |
| private static final int DELETED_MESSAGE_ID = DELETED_MESSAGE_BASE + 1; |
| |
| private static final int POLICY_BASE = 0x7000; |
| private static final int POLICY = POLICY_BASE; |
| private static final int POLICY_ID = POLICY_BASE + 1; |
| |
| private static final int QUICK_RESPONSE_BASE = 0x8000; |
| private static final int QUICK_RESPONSE = QUICK_RESPONSE_BASE; |
| private static final int QUICK_RESPONSE_ID = QUICK_RESPONSE_BASE + 1; |
| private static final int QUICK_RESPONSE_ACCOUNT_ID = QUICK_RESPONSE_BASE + 2; |
| |
| private static final int UI_BASE = 0x9000; |
| private static final int UI_FOLDERS = UI_BASE; |
| private static final int UI_SUBFOLDERS = UI_BASE + 1; |
| private static final int UI_MESSAGES = UI_BASE + 2; |
| private static final int UI_MESSAGE = UI_BASE + 3; |
| private static final int UI_SENDMAIL = UI_BASE + 4; |
| private static final int UI_UNDO = UI_BASE + 5; |
| private static final int UI_SAVEDRAFT = UI_BASE + 6; |
| private static final int UI_UPDATEDRAFT = UI_BASE + 7; |
| private static final int UI_SENDDRAFT = UI_BASE + 8; |
| private static final int UI_FOLDER_REFRESH = UI_BASE + 9; |
| private static final int UI_FOLDER = UI_BASE + 10; |
| private static final int UI_ACCOUNT = UI_BASE + 11; |
| private static final int UI_ACCTS = UI_BASE + 12; |
| private static final int UI_ATTACHMENTS = UI_BASE + 13; |
| private static final int UI_ATTACHMENT = UI_BASE + 14; |
| private static final int UI_SEARCH = UI_BASE + 15; |
| private static final int UI_ACCOUNT_DATA = UI_BASE + 16; |
| private static final int UI_FOLDER_LOAD_MORE = UI_BASE + 17; |
| private static final int UI_CONVERSATION = UI_BASE + 18; |
| private static final int UI_RECENT_FOLDERS = UI_BASE + 19; |
| |
| // MUST ALWAYS EQUAL THE LAST OF THE PREVIOUS BASE CONSTANTS |
| private static final int LAST_EMAIL_PROVIDER_DB_BASE = UI_BASE; |
| |
| // DO NOT CHANGE BODY_BASE!! |
| private static final int BODY_BASE = LAST_EMAIL_PROVIDER_DB_BASE + 0x1000; |
| private static final int BODY = BODY_BASE; |
| private static final int BODY_ID = BODY_BASE + 1; |
| |
| private static final int BASE_SHIFT = 12; // 12 bits to the base type: 0, 0x1000, 0x2000, etc. |
| |
| // TABLE_NAMES MUST remain in the order of the BASE constants above (e.g. ACCOUNT_BASE = 0x0000, |
| // MESSAGE_BASE = 0x1000, etc.) |
| private static final String[] TABLE_NAMES = { |
| Account.TABLE_NAME, |
| Mailbox.TABLE_NAME, |
| Message.TABLE_NAME, |
| Attachment.TABLE_NAME, |
| HostAuth.TABLE_NAME, |
| Message.UPDATED_TABLE_NAME, |
| Message.DELETED_TABLE_NAME, |
| Policy.TABLE_NAME, |
| QuickResponse.TABLE_NAME, |
| null, // UI |
| Body.TABLE_NAME, |
| }; |
| |
| // CONTENT_CACHES MUST remain in the order of the BASE constants above |
| private final ContentCache[] mContentCaches = { |
| mCacheAccount, |
| mCacheMailbox, |
| mCacheMessage, |
| null, // Attachment |
| mCacheHostAuth, |
| null, // Updated message |
| null, // Deleted message |
| mCachePolicy, |
| null, // Quick response |
| null, // Body |
| null // UI |
| }; |
| |
| // CACHE_PROJECTIONS MUST remain in the order of the BASE constants above |
| private static final String[][] CACHE_PROJECTIONS = { |
| Account.CONTENT_PROJECTION, |
| Mailbox.CONTENT_PROJECTION, |
| Message.CONTENT_PROJECTION, |
| null, // Attachment |
| HostAuth.CONTENT_PROJECTION, |
| null, // Updated message |
| null, // Deleted message |
| Policy.CONTENT_PROJECTION, |
| null, // Quick response |
| null, // Body |
| null // UI |
| }; |
| |
| private static final UriMatcher sURIMatcher = new UriMatcher(UriMatcher.NO_MATCH); |
| |
| private static final String MAILBOX_PRE_CACHE_SELECTION = MailboxColumns.TYPE + " IN (" + |
| Mailbox.TYPE_INBOX + "," + Mailbox.TYPE_DRAFTS + "," + Mailbox.TYPE_TRASH + "," + |
| Mailbox.TYPE_SENT + "," + Mailbox.TYPE_SEARCH + "," + Mailbox.TYPE_OUTBOX + ")"; |
| |
| /** |
| * Let's only generate these SQL strings once, as they are used frequently |
| * Note that this isn't relevant for table creation strings, since they are used only once |
| */ |
| private static final String UPDATED_MESSAGE_INSERT = "insert or ignore into " + |
| Message.UPDATED_TABLE_NAME + " select * from " + Message.TABLE_NAME + " where " + |
| EmailContent.RECORD_ID + '='; |
| |
| private static final String UPDATED_MESSAGE_DELETE = "delete from " + |
| Message.UPDATED_TABLE_NAME + " where " + EmailContent.RECORD_ID + '='; |
| |
| private static final String DELETED_MESSAGE_INSERT = "insert or replace into " + |
| Message.DELETED_TABLE_NAME + " select * from " + Message.TABLE_NAME + " where " + |
| EmailContent.RECORD_ID + '='; |
| |
| private static final String DELETE_ORPHAN_BODIES = "delete from " + Body.TABLE_NAME + |
| " where " + BodyColumns.MESSAGE_KEY + " in " + "(select " + BodyColumns.MESSAGE_KEY + |
| " from " + Body.TABLE_NAME + " except select " + EmailContent.RECORD_ID + " from " + |
| Message.TABLE_NAME + ')'; |
| |
| private static final String DELETE_BODY = "delete from " + Body.TABLE_NAME + |
| " where " + BodyColumns.MESSAGE_KEY + '='; |
| |
| private static final String ID_EQUALS = EmailContent.RECORD_ID + "=?"; |
| |
| private static final ContentValues CONTENT_VALUES_RESET_NEW_MESSAGE_COUNT; |
| |
| public static final String MESSAGE_URI_PARAMETER_MAILBOX_ID = "mailboxId"; |
| |
| static { |
| // Email URI matching table |
| UriMatcher matcher = sURIMatcher; |
| |
| // All accounts |
| matcher.addURI(EmailContent.AUTHORITY, "account", ACCOUNT); |
| // A specific account |
| // insert into this URI causes a mailbox to be added to the account |
| matcher.addURI(EmailContent.AUTHORITY, "account/#", ACCOUNT_ID); |
| matcher.addURI(EmailContent.AUTHORITY, "account/default", ACCOUNT_DEFAULT_ID); |
| |
| // Special URI to reset the new message count. Only update works, and content values |
| // will be ignored. |
| matcher.addURI(EmailContent.AUTHORITY, "resetNewMessageCount", |
| ACCOUNT_RESET_NEW_COUNT); |
| matcher.addURI(EmailContent.AUTHORITY, "resetNewMessageCount/#", |
| ACCOUNT_RESET_NEW_COUNT_ID); |
| |
| // All mailboxes |
| matcher.addURI(EmailContent.AUTHORITY, "mailbox", MAILBOX); |
| // A specific mailbox |
| // insert into this URI causes a message to be added to the mailbox |
| // ** NOTE For now, the accountKey must be set manually in the values! |
| matcher.addURI(EmailContent.AUTHORITY, "mailbox/#", MAILBOX_ID); |
| matcher.addURI(EmailContent.AUTHORITY, "mailboxIdFromAccountAndType/#/#", |
| MAILBOX_ID_FROM_ACCOUNT_AND_TYPE); |
| matcher.addURI(EmailContent.AUTHORITY, "mailboxNotification/#", MAILBOX_NOTIFICATION); |
| matcher.addURI(EmailContent.AUTHORITY, "mailboxMostRecentMessage/#", |
| MAILBOX_MOST_RECENT_MESSAGE); |
| |
| // All messages |
| matcher.addURI(EmailContent.AUTHORITY, "message", MESSAGE); |
| // A specific message |
| // insert into this URI causes an attachment to be added to the message |
| matcher.addURI(EmailContent.AUTHORITY, "message/#", MESSAGE_ID); |
| |
| // A specific attachment |
| matcher.addURI(EmailContent.AUTHORITY, "attachment", ATTACHMENT); |
| // A specific attachment (the header information) |
| matcher.addURI(EmailContent.AUTHORITY, "attachment/#", ATTACHMENT_ID); |
| // The attachments of a specific message (query only) (insert & delete TBD) |
| matcher.addURI(EmailContent.AUTHORITY, "attachment/message/#", |
| ATTACHMENTS_MESSAGE_ID); |
| |
| // All mail bodies |
| matcher.addURI(EmailContent.AUTHORITY, "body", BODY); |
| // A specific mail body |
| matcher.addURI(EmailContent.AUTHORITY, "body/#", BODY_ID); |
| |
| // All hostauth records |
| matcher.addURI(EmailContent.AUTHORITY, "hostauth", HOSTAUTH); |
| // A specific hostauth |
| matcher.addURI(EmailContent.AUTHORITY, "hostauth/#", HOSTAUTH_ID); |
| |
| // Atomically a constant value to a particular field of a mailbox/account |
| matcher.addURI(EmailContent.AUTHORITY, "mailboxIdAddToField/#", |
| MAILBOX_ID_ADD_TO_FIELD); |
| matcher.addURI(EmailContent.AUTHORITY, "accountIdAddToField/#", |
| ACCOUNT_ID_ADD_TO_FIELD); |
| |
| /** |
| * THIS URI HAS SPECIAL SEMANTICS |
| * ITS USE IS INTENDED FOR THE UI APPLICATION TO MARK CHANGES THAT NEED TO BE SYNCED BACK |
| * TO A SERVER VIA A SYNC ADAPTER |
| */ |
| matcher.addURI(EmailContent.AUTHORITY, "syncedMessage/#", SYNCED_MESSAGE_ID); |
| |
| /** |
| * THE URIs BELOW THIS POINT ARE INTENDED TO BE USED BY SYNC ADAPTERS ONLY |
| * THEY REFER TO DATA CREATED AND MAINTAINED BY CALLS TO THE SYNCED_MESSAGE_ID URI |
| * BY THE UI APPLICATION |
| */ |
| // All deleted messages |
| matcher.addURI(EmailContent.AUTHORITY, "deletedMessage", DELETED_MESSAGE); |
| // A specific deleted message |
| matcher.addURI(EmailContent.AUTHORITY, "deletedMessage/#", DELETED_MESSAGE_ID); |
| |
| // All updated messages |
| matcher.addURI(EmailContent.AUTHORITY, "updatedMessage", UPDATED_MESSAGE); |
| // A specific updated message |
| matcher.addURI(EmailContent.AUTHORITY, "updatedMessage/#", UPDATED_MESSAGE_ID); |
| |
| CONTENT_VALUES_RESET_NEW_MESSAGE_COUNT = new ContentValues(); |
| CONTENT_VALUES_RESET_NEW_MESSAGE_COUNT.put(Account.NEW_MESSAGE_COUNT, 0); |
| |
| matcher.addURI(EmailContent.AUTHORITY, "policy", POLICY); |
| matcher.addURI(EmailContent.AUTHORITY, "policy/#", POLICY_ID); |
| |
| // All quick responses |
| matcher.addURI(EmailContent.AUTHORITY, "quickresponse", QUICK_RESPONSE); |
| // A specific quick response |
| matcher.addURI(EmailContent.AUTHORITY, "quickresponse/#", QUICK_RESPONSE_ID); |
| // All quick responses associated with a particular account id |
| matcher.addURI(EmailContent.AUTHORITY, "quickresponse/account/#", |
| QUICK_RESPONSE_ACCOUNT_ID); |
| |
| matcher.addURI(EmailContent.AUTHORITY, "uifolders/#", UI_FOLDERS); |
| matcher.addURI(EmailContent.AUTHORITY, "uisubfolders/#", UI_SUBFOLDERS); |
| matcher.addURI(EmailContent.AUTHORITY, "uimessages/#", UI_MESSAGES); |
| matcher.addURI(EmailContent.AUTHORITY, "uimessage/#", UI_MESSAGE); |
| matcher.addURI(EmailContent.AUTHORITY, "uisendmail/#", UI_SENDMAIL); |
| matcher.addURI(EmailContent.AUTHORITY, "uiundo", UI_UNDO); |
| matcher.addURI(EmailContent.AUTHORITY, "uisavedraft/#", UI_SAVEDRAFT); |
| matcher.addURI(EmailContent.AUTHORITY, "uiupdatedraft/#", UI_UPDATEDRAFT); |
| matcher.addURI(EmailContent.AUTHORITY, "uisenddraft/#", UI_SENDDRAFT); |
| matcher.addURI(EmailContent.AUTHORITY, "uirefresh/#", UI_FOLDER_REFRESH); |
| matcher.addURI(EmailContent.AUTHORITY, "uifolder/#", UI_FOLDER); |
| matcher.addURI(EmailContent.AUTHORITY, "uiaccount/#", UI_ACCOUNT); |
| matcher.addURI(EmailContent.AUTHORITY, "uiaccts", UI_ACCTS); |
| matcher.addURI(EmailContent.AUTHORITY, "uiattachments/#", UI_ATTACHMENTS); |
| matcher.addURI(EmailContent.AUTHORITY, "uiattachment/#", UI_ATTACHMENT); |
| matcher.addURI(EmailContent.AUTHORITY, "uisearch/#", UI_SEARCH); |
| matcher.addURI(EmailContent.AUTHORITY, "uiaccountdata/#", UI_ACCOUNT_DATA); |
| matcher.addURI(EmailContent.AUTHORITY, "uiloadmore/#", UI_FOLDER_LOAD_MORE); |
| matcher.addURI(EmailContent.AUTHORITY, "uiconversation/#", UI_CONVERSATION); |
| matcher.addURI(EmailContent.AUTHORITY, "uirecentfolders/#", UI_RECENT_FOLDERS); |
| } |
| |
| /** |
| * Wrap the UriMatcher call so we can throw a runtime exception if an unknown Uri is passed in |
| * @param uri the Uri to match |
| * @return the match value |
| */ |
| private static int findMatch(Uri uri, String methodName) { |
| int match = sURIMatcher.match(uri); |
| if (match < 0) { |
| throw new IllegalArgumentException("Unknown uri: " + uri); |
| } else if (Logging.LOGD) { |
| Log.v(TAG, methodName + ": uri=" + uri + ", match is " + match); |
| } |
| return match; |
| } |
| |
| private SQLiteDatabase mDatabase; |
| private SQLiteDatabase mBodyDatabase; |
| |
| public static Uri uiUri(String type, long id) { |
| return Uri.parse(uiUriString(type, id)); |
| } |
| |
| public static String uiUriString(String type, long id) { |
| return "content://" + EmailContent.AUTHORITY + "/" + type + ((id == -1) ? "" : ("/" + id)); |
| } |
| |
| /** |
| * Orphan record deletion utility. Generates a sqlite statement like: |
| * delete from <table> where <column> not in (select <foreignColumn> from <foreignTable>) |
| * @param db the EmailProvider database |
| * @param table the table whose orphans are to be removed |
| * @param column the column deletion will be based on |
| * @param foreignColumn the column in the foreign table whose absence will trigger the deletion |
| * @param foreignTable the foreign table |
| */ |
| @VisibleForTesting |
| void deleteUnlinked(SQLiteDatabase db, String table, String column, String foreignColumn, |
| String foreignTable) { |
| int count = db.delete(table, column + " not in (select " + foreignColumn + " from " + |
| foreignTable + ")", null); |
| if (count > 0) { |
| Log.w(TAG, "Found " + count + " orphaned row(s) in " + table); |
| } |
| } |
| |
| @VisibleForTesting |
| synchronized SQLiteDatabase getDatabase(Context context) { |
| // Always return the cached database, if we've got one |
| if (mDatabase != null) { |
| return mDatabase; |
| } |
| |
| // Whenever we create or re-cache the databases, make sure that we haven't lost one |
| // to corruption |
| checkDatabases(); |
| |
| DBHelper.DatabaseHelper helper = new DBHelper.DatabaseHelper(context, DATABASE_NAME); |
| mDatabase = helper.getWritableDatabase(); |
| DBHelper.BodyDatabaseHelper bodyHelper = |
| new DBHelper.BodyDatabaseHelper(context, BODY_DATABASE_NAME); |
| mBodyDatabase = bodyHelper.getWritableDatabase(); |
| if (mBodyDatabase != null) { |
| String bodyFileName = mBodyDatabase.getPath(); |
| mDatabase.execSQL("attach \"" + bodyFileName + "\" as BodyDatabase"); |
| } |
| |
| // Restore accounts if the database is corrupted... |
| restoreIfNeeded(context, mDatabase); |
| // Check for any orphaned Messages in the updated/deleted tables |
| deleteMessageOrphans(mDatabase, Message.UPDATED_TABLE_NAME); |
| deleteMessageOrphans(mDatabase, Message.DELETED_TABLE_NAME); |
| // Delete orphaned mailboxes/messages/policies (account no longer exists) |
| deleteUnlinked(mDatabase, Mailbox.TABLE_NAME, MailboxColumns.ACCOUNT_KEY, AccountColumns.ID, |
| Account.TABLE_NAME); |
| deleteUnlinked(mDatabase, Message.TABLE_NAME, MessageColumns.ACCOUNT_KEY, AccountColumns.ID, |
| Account.TABLE_NAME); |
| deleteUnlinked(mDatabase, Policy.TABLE_NAME, PolicyColumns.ID, AccountColumns.POLICY_KEY, |
| Account.TABLE_NAME); |
| preCacheData(); |
| return mDatabase; |
| } |
| |
| /** |
| * Pre-cache all of the items in a given table meeting the selection criteria |
| * @param tableUri the table uri |
| * @param baseProjection the base projection of that table |
| * @param selection the selection criteria |
| */ |
| private void preCacheTable(Uri tableUri, String[] baseProjection, String selection) { |
| Cursor c = query(tableUri, EmailContent.ID_PROJECTION, selection, null, null); |
| try { |
| while (c.moveToNext()) { |
| long id = c.getLong(EmailContent.ID_PROJECTION_COLUMN); |
| Cursor cachedCursor = query(ContentUris.withAppendedId( |
| tableUri, id), baseProjection, null, null, null); |
| if (cachedCursor != null) { |
| // For accounts, create a mailbox type map entry (if necessary) |
| if (tableUri == Account.CONTENT_URI) { |
| getOrCreateAccountMailboxTypeMap(id); |
| } |
| cachedCursor.close(); |
| } |
| } |
| } finally { |
| c.close(); |
| } |
| } |
| |
| private final HashMap<Long, HashMap<Integer, Long>> mMailboxTypeMap = |
| new HashMap<Long, HashMap<Integer, Long>>(); |
| |
| private HashMap<Integer, Long> getOrCreateAccountMailboxTypeMap(long accountId) { |
| synchronized(mMailboxTypeMap) { |
| HashMap<Integer, Long> accountMailboxTypeMap = mMailboxTypeMap.get(accountId); |
| if (accountMailboxTypeMap == null) { |
| accountMailboxTypeMap = new HashMap<Integer, Long>(); |
| mMailboxTypeMap.put(accountId, accountMailboxTypeMap); |
| } |
| return accountMailboxTypeMap; |
| } |
| } |
| |
| private void addToMailboxTypeMap(Cursor c) { |
| long accountId = c.getLong(Mailbox.CONTENT_ACCOUNT_KEY_COLUMN); |
| int type = c.getInt(Mailbox.CONTENT_TYPE_COLUMN); |
| synchronized(mMailboxTypeMap) { |
| HashMap<Integer, Long> accountMailboxTypeMap = |
| getOrCreateAccountMailboxTypeMap(accountId); |
| accountMailboxTypeMap.put(type, c.getLong(Mailbox.CONTENT_ID_COLUMN)); |
| } |
| } |
| |
| private long getMailboxIdFromMailboxTypeMap(long accountId, int type) { |
| synchronized(mMailboxTypeMap) { |
| HashMap<Integer, Long> accountMap = mMailboxTypeMap.get(accountId); |
| Long mailboxId = null; |
| if (accountMap != null) { |
| mailboxId = accountMap.get(type); |
| } |
| if (mailboxId == null) return Mailbox.NO_MAILBOX; |
| return mailboxId; |
| } |
| } |
| |
| private void preCacheData() { |
| synchronized(mMailboxTypeMap) { |
| mMailboxTypeMap.clear(); |
| |
| // Pre-cache accounts, host auth's, policies, and special mailboxes |
| preCacheTable(Account.CONTENT_URI, Account.CONTENT_PROJECTION, null); |
| preCacheTable(HostAuth.CONTENT_URI, HostAuth.CONTENT_PROJECTION, null); |
| preCacheTable(Policy.CONTENT_URI, Policy.CONTENT_PROJECTION, null); |
| preCacheTable(Mailbox.CONTENT_URI, Mailbox.CONTENT_PROJECTION, |
| MAILBOX_PRE_CACHE_SELECTION); |
| |
| // Create a map from account,type to a mailbox |
| Map<String, Cursor> snapshot = mCacheMailbox.getSnapshot(); |
| Collection<Cursor> values = snapshot.values(); |
| if (values != null) { |
| for (Cursor c: values) { |
| if (c.moveToFirst()) { |
| addToMailboxTypeMap(c); |
| } |
| } |
| } |
| } |
| } |
| |
| /*package*/ static SQLiteDatabase getReadableDatabase(Context context) { |
| DBHelper.DatabaseHelper helper = new DBHelper.DatabaseHelper(context, DATABASE_NAME); |
| return helper.getReadableDatabase(); |
| } |
| |
| /** |
| * Restore user Account and HostAuth data from our backup database |
| */ |
| public static void restoreIfNeeded(Context context, SQLiteDatabase mainDatabase) { |
| if (Email.DEBUG) { |
| Log.w(TAG, "restoreIfNeeded..."); |
| } |
| // Check for legacy backup |
| String legacyBackup = Preferences.getLegacyBackupPreference(context); |
| // If there's a legacy backup, create a new-style backup and delete the legacy backup |
| // In the 1:1000000000 chance that the user gets an app update just as his database becomes |
| // corrupt, oh well... |
| if (!TextUtils.isEmpty(legacyBackup)) { |
| backupAccounts(context, mainDatabase); |
| Preferences.clearLegacyBackupPreference(context); |
| Log.w(TAG, "Created new EmailProvider backup database"); |
| return; |
| } |
| |
| // If we have accounts, we're done |
| Cursor c = mainDatabase.query(Account.TABLE_NAME, EmailContent.ID_PROJECTION, null, null, |
| null, null, null); |
| try { |
| if (c.moveToFirst()) { |
| if (Email.DEBUG) { |
| Log.w(TAG, "restoreIfNeeded: Account exists."); |
| } |
| return; // At least one account exists. |
| } |
| } finally { |
| c.close(); |
| } |
| |
| restoreAccounts(context, mainDatabase); |
| } |
| |
| /** {@inheritDoc} */ |
| @Override |
| public void shutdown() { |
| if (mDatabase != null) { |
| mDatabase.close(); |
| mDatabase = null; |
| } |
| if (mBodyDatabase != null) { |
| mBodyDatabase.close(); |
| mBodyDatabase = null; |
| } |
| } |
| |
| /*package*/ static void deleteMessageOrphans(SQLiteDatabase database, String tableName) { |
| if (database != null) { |
| // We'll look at all of the items in the table; there won't be many typically |
| Cursor c = database.query(tableName, ORPHANS_PROJECTION, null, null, null, null, null); |
| // Usually, there will be nothing in these tables, so make a quick check |
| try { |
| if (c.getCount() == 0) return; |
| ArrayList<Long> foundMailboxes = new ArrayList<Long>(); |
| ArrayList<Long> notFoundMailboxes = new ArrayList<Long>(); |
| ArrayList<Long> deleteList = new ArrayList<Long>(); |
| String[] bindArray = new String[1]; |
| while (c.moveToNext()) { |
| // Get the mailbox key and see if we've already found this mailbox |
| // If so, we're fine |
| long mailboxId = c.getLong(ORPHANS_MAILBOX_KEY); |
| // If we already know this mailbox doesn't exist, mark the message for deletion |
| if (notFoundMailboxes.contains(mailboxId)) { |
| deleteList.add(c.getLong(ORPHANS_ID)); |
| // If we don't know about this mailbox, we'll try to find it |
| } else if (!foundMailboxes.contains(mailboxId)) { |
| bindArray[0] = Long.toString(mailboxId); |
| Cursor boxCursor = database.query(Mailbox.TABLE_NAME, |
| Mailbox.ID_PROJECTION, WHERE_ID, bindArray, null, null, null); |
| try { |
| // If it exists, we'll add it to the "found" mailboxes |
| if (boxCursor.moveToFirst()) { |
| foundMailboxes.add(mailboxId); |
| // Otherwise, we'll add to "not found" and mark the message for deletion |
| } else { |
| notFoundMailboxes.add(mailboxId); |
| deleteList.add(c.getLong(ORPHANS_ID)); |
| } |
| } finally { |
| boxCursor.close(); |
| } |
| } |
| } |
| // Now, delete the orphan messages |
| for (long messageId: deleteList) { |
| bindArray[0] = Long.toString(messageId); |
| database.delete(tableName, WHERE_ID, bindArray); |
| } |
| } finally { |
| c.close(); |
| } |
| } |
| } |
| |
| @Override |
| public int delete(Uri uri, String selection, String[] selectionArgs) { |
| final int match = findMatch(uri, "delete"); |
| Context context = getContext(); |
| // Pick the correct database for this operation |
| // If we're in a transaction already (which would happen during applyBatch), then the |
| // body database is already attached to the email database and any attempt to use the |
| // body database directly will result in a SQLiteException (the database is locked) |
| SQLiteDatabase db = getDatabase(context); |
| int table = match >> BASE_SHIFT; |
| String id = "0"; |
| boolean messageDeletion = false; |
| ContentResolver resolver = context.getContentResolver(); |
| |
| ContentCache cache = mContentCaches[table]; |
| String tableName = TABLE_NAMES[table]; |
| int result = -1; |
| |
| try { |
| switch (match) { |
| case UI_MESSAGE: |
| // These are cases in which one or more Messages might get deleted, either by |
| // cascade or explicitly |
| case MAILBOX_ID: |
| case MAILBOX: |
| case ACCOUNT_ID: |
| case ACCOUNT: |
| case MESSAGE: |
| case SYNCED_MESSAGE_ID: |
| case MESSAGE_ID: |
| // Handle lost Body records here, since this cannot be done in a trigger |
| // The process is: |
| // 1) Begin a transaction, ensuring that both databases are affected atomically |
| // 2) Do the requested deletion, with cascading deletions handled in triggers |
| // 3) End the transaction, committing all changes atomically |
| // |
| // Bodies are auto-deleted here; Attachments are auto-deleted via trigger |
| messageDeletion = true; |
| db.beginTransaction(); |
| break; |
| } |
| switch (match) { |
| case BODY_ID: |
| case DELETED_MESSAGE_ID: |
| case SYNCED_MESSAGE_ID: |
| case MESSAGE_ID: |
| case UPDATED_MESSAGE_ID: |
| case ATTACHMENT_ID: |
| case MAILBOX_ID: |
| case ACCOUNT_ID: |
| case HOSTAUTH_ID: |
| case POLICY_ID: |
| case QUICK_RESPONSE_ID: |
| id = uri.getPathSegments().get(1); |
| if (match == SYNCED_MESSAGE_ID) { |
| // For synced messages, first copy the old message to the deleted table and |
| // delete it from the updated table (in case it was updated first) |
| // Note that this is all within a transaction, for atomicity |
| db.execSQL(DELETED_MESSAGE_INSERT + id); |
| db.execSQL(UPDATED_MESSAGE_DELETE + id); |
| } |
| if (cache != null) { |
| cache.lock(id); |
| } |
| try { |
| result = db.delete(tableName, whereWithId(id, selection), selectionArgs); |
| if (cache != null) { |
| switch(match) { |
| case ACCOUNT_ID: |
| // Account deletion will clear all of the caches, as HostAuth's, |
| // Mailboxes, and Messages will be deleted in the process |
| mCacheMailbox.invalidate("Delete", uri, selection); |
| mCacheHostAuth.invalidate("Delete", uri, selection); |
| mCachePolicy.invalidate("Delete", uri, selection); |
| //$FALL-THROUGH$ |
| case MAILBOX_ID: |
| // Mailbox deletion will clear the Message cache |
| mCacheMessage.invalidate("Delete", uri, selection); |
| //$FALL-THROUGH$ |
| case SYNCED_MESSAGE_ID: |
| case MESSAGE_ID: |
| case HOSTAUTH_ID: |
| case POLICY_ID: |
| cache.invalidate("Delete", uri, selection); |
| // Make sure all data is properly cached |
| if (match != MESSAGE_ID) { |
| preCacheData(); |
| } |
| break; |
| } |
| } |
| } finally { |
| if (cache != null) { |
| cache.unlock(id); |
| } |
| } |
| break; |
| case ATTACHMENTS_MESSAGE_ID: |
| // All attachments for the given message |
| id = uri.getPathSegments().get(2); |
| result = db.delete(tableName, |
| whereWith(Attachment.MESSAGE_KEY + "=" + id, selection), selectionArgs); |
| break; |
| |
| case BODY: |
| case MESSAGE: |
| case DELETED_MESSAGE: |
| case UPDATED_MESSAGE: |
| case ATTACHMENT: |
| case MAILBOX: |
| case ACCOUNT: |
| case HOSTAUTH: |
| case POLICY: |
| switch(match) { |
| // See the comments above for deletion of ACCOUNT_ID, etc |
| case ACCOUNT: |
| mCacheMailbox.invalidate("Delete", uri, selection); |
| mCacheHostAuth.invalidate("Delete", uri, selection); |
| mCachePolicy.invalidate("Delete", uri, selection); |
| //$FALL-THROUGH$ |
| case MAILBOX: |
| mCacheMessage.invalidate("Delete", uri, selection); |
| //$FALL-THROUGH$ |
| case MESSAGE: |
| case HOSTAUTH: |
| case POLICY: |
| cache.invalidate("Delete", uri, selection); |
| break; |
| } |
| result = db.delete(tableName, selection, selectionArgs); |
| switch(match) { |
| case ACCOUNT: |
| case MAILBOX: |
| case HOSTAUTH: |
| case POLICY: |
| // Make sure all data is properly cached |
| preCacheData(); |
| break; |
| } |
| break; |
| |
| default: |
| throw new IllegalArgumentException("Unknown URI " + uri); |
| } |
| if (messageDeletion) { |
| if (match == MESSAGE_ID) { |
| // Delete the Body record associated with the deleted message |
| db.execSQL(DELETE_BODY + id); |
| } else { |
| // Delete any orphaned Body records |
| db.execSQL(DELETE_ORPHAN_BODIES); |
| } |
| db.setTransactionSuccessful(); |
| } |
| } catch (SQLiteException e) { |
| checkDatabases(); |
| throw e; |
| } finally { |
| if (messageDeletion) { |
| db.endTransaction(); |
| } |
| } |
| |
| // Notify all notifier cursors |
| sendNotifierChange(getBaseNotificationUri(match), NOTIFICATION_OP_DELETE, id); |
| |
| // Notify all email content cursors |
| resolver.notifyChange(EmailContent.CONTENT_URI, null); |
| return result; |
| } |
| |
| @Override |
| // Use the email- prefix because message, mailbox, and account are so generic (e.g. SMS, IM) |
| public String getType(Uri uri) { |
| int match = findMatch(uri, "getType"); |
| switch (match) { |
| case BODY_ID: |
| return "vnd.android.cursor.item/email-body"; |
| case BODY: |
| return "vnd.android.cursor.dir/email-body"; |
| case UPDATED_MESSAGE_ID: |
| case MESSAGE_ID: |
| // NOTE: According to the framework folks, we're supposed to invent mime types as |
| // a way of passing information to drag & drop recipients. |
| // If there's a mailboxId parameter in the url, we respond with a mime type that |
| // has -n appended, where n is the mailboxId of the message. The drag & drop code |
| // uses this information to know not to allow dragging the item to its own mailbox |
| String mimeType = EMAIL_MESSAGE_MIME_TYPE; |
| String mailboxId = uri.getQueryParameter(MESSAGE_URI_PARAMETER_MAILBOX_ID); |
| if (mailboxId != null) { |
| mimeType += "-" + mailboxId; |
| } |
| return mimeType; |
| case UPDATED_MESSAGE: |
| case MESSAGE: |
| return "vnd.android.cursor.dir/email-message"; |
| case MAILBOX: |
| return "vnd.android.cursor.dir/email-mailbox"; |
| case MAILBOX_ID: |
| return "vnd.android.cursor.item/email-mailbox"; |
| case ACCOUNT: |
| return "vnd.android.cursor.dir/email-account"; |
| case ACCOUNT_ID: |
| return "vnd.android.cursor.item/email-account"; |
| case ATTACHMENTS_MESSAGE_ID: |
| case ATTACHMENT: |
| return "vnd.android.cursor.dir/email-attachment"; |
| case ATTACHMENT_ID: |
| return EMAIL_ATTACHMENT_MIME_TYPE; |
| case HOSTAUTH: |
| return "vnd.android.cursor.dir/email-hostauth"; |
| case HOSTAUTH_ID: |
| return "vnd.android.cursor.item/email-hostauth"; |
| default: |
| throw new IllegalArgumentException("Unknown URI " + uri); |
| } |
| } |
| |
| @Override |
| public Uri insert(Uri uri, ContentValues values) { |
| int match = findMatch(uri, "insert"); |
| Context context = getContext(); |
| ContentResolver resolver = context.getContentResolver(); |
| |
| // See the comment at delete(), above |
| SQLiteDatabase db = getDatabase(context); |
| int table = match >> BASE_SHIFT; |
| String id = "0"; |
| long longId; |
| |
| // We do NOT allow setting of unreadCount/messageCount via the provider |
| // These columns are maintained via triggers |
| if (match == MAILBOX_ID || match == MAILBOX) { |
| values.put(MailboxColumns.UNREAD_COUNT, 0); |
| values.put(MailboxColumns.MESSAGE_COUNT, 0); |
| } |
| |
| Uri resultUri = null; |
| |
| try { |
| switch (match) { |
| // NOTE: It is NOT legal for production code to insert directly into UPDATED_MESSAGE |
| // or DELETED_MESSAGE; see the comment below for details |
| case UPDATED_MESSAGE: |
| case DELETED_MESSAGE: |
| case MESSAGE: |
| case BODY: |
| case ATTACHMENT: |
| case MAILBOX: |
| case ACCOUNT: |
| case HOSTAUTH: |
| case POLICY: |
| case QUICK_RESPONSE: |
| longId = db.insert(TABLE_NAMES[table], "foo", values); |
| resultUri = ContentUris.withAppendedId(uri, longId); |
| switch(match) { |
| case MAILBOX: |
| if (values.containsKey(MailboxColumns.TYPE)) { |
| // Only cache special mailbox types |
| int type = values.getAsInteger(MailboxColumns.TYPE); |
| if (type != Mailbox.TYPE_INBOX && type != Mailbox.TYPE_OUTBOX && |
| type != Mailbox.TYPE_DRAFTS && type != Mailbox.TYPE_SENT && |
| type != Mailbox.TYPE_TRASH && type != Mailbox.TYPE_SEARCH) { |
| break; |
| } |
| } |
| //$FALL-THROUGH$ |
| case ACCOUNT: |
| case HOSTAUTH: |
| case POLICY: |
| // Cache new account, host auth, policy, and some mailbox rows |
| Cursor c = query(resultUri, CACHE_PROJECTIONS[table], null, null, null); |
| if (c != null) { |
| if (match == MAILBOX) { |
| addToMailboxTypeMap(c); |
| } else if (match == ACCOUNT) { |
| getOrCreateAccountMailboxTypeMap(longId); |
| } |
| c.close(); |
| } |
| break; |
| } |
| // Clients shouldn't normally be adding rows to these tables, as they are |
| // maintained by triggers. However, we need to be able to do this for unit |
| // testing, so we allow the insert and then throw the same exception that we |
| // would if this weren't allowed. |
| if (match == UPDATED_MESSAGE || match == DELETED_MESSAGE) { |
| throw new IllegalArgumentException("Unknown URL " + uri); |
| } else if (match == ATTACHMENT) { |
| int flags = 0; |
| if (values.containsKey(Attachment.FLAGS)) { |
| flags = values.getAsInteger(Attachment.FLAGS); |
| } |
| // Report all new attachments to the download service |
| mAttachmentService.attachmentChanged(getContext(), longId, flags); |
| } |
| break; |
| case MAILBOX_ID: |
| // This implies adding a message to a mailbox |
| // Hmm, a problem here is that we can't link the account as well, so it must be |
| // already in the values... |
| longId = Long.parseLong(uri.getPathSegments().get(1)); |
| values.put(MessageColumns.MAILBOX_KEY, longId); |
| return insert(Message.CONTENT_URI, values); // Recurse |
| case MESSAGE_ID: |
| // This implies adding an attachment to a message. |
| id = uri.getPathSegments().get(1); |
| longId = Long.parseLong(id); |
| values.put(AttachmentColumns.MESSAGE_KEY, longId); |
| return insert(Attachment.CONTENT_URI, values); // Recurse |
| case ACCOUNT_ID: |
| // This implies adding a mailbox to an account. |
| longId = Long.parseLong(uri.getPathSegments().get(1)); |
| values.put(MailboxColumns.ACCOUNT_KEY, longId); |
| return insert(Mailbox.CONTENT_URI, values); // Recurse |
| case ATTACHMENTS_MESSAGE_ID: |
| longId = db.insert(TABLE_NAMES[table], "foo", values); |
| resultUri = ContentUris.withAppendedId(Attachment.CONTENT_URI, longId); |
| break; |
| default: |
| throw new IllegalArgumentException("Unknown URL " + uri); |
| } |
| } catch (SQLiteException e) { |
| checkDatabases(); |
| throw e; |
| } |
| |
| // Notify all notifier cursors |
| sendNotifierChange(getBaseNotificationUri(match), NOTIFICATION_OP_INSERT, id); |
| |
| // Notify all existing cursors. |
| resolver.notifyChange(EmailContent.CONTENT_URI, null); |
| return resultUri; |
| } |
| |
| @Override |
| public boolean onCreate() { |
| Email.setServicesEnabledAsync(getContext()); |
| checkDatabases(); |
| return false; |
| } |
| |
| /** |
| * The idea here is that the two databases (EmailProvider.db and EmailProviderBody.db must |
| * always be in sync (i.e. there are two database or NO databases). This code will delete |
| * any "orphan" database, so that both will be created together. Note that an "orphan" database |
| * will exist after either of the individual databases is deleted due to data corruption. |
| */ |
| public synchronized void checkDatabases() { |
| // Uncache the databases |
| if (mDatabase != null) { |
| mDatabase = null; |
| } |
| if (mBodyDatabase != null) { |
| mBodyDatabase = null; |
| } |
| // Look for orphans, and delete as necessary; these must always be in sync |
| File databaseFile = getContext().getDatabasePath(DATABASE_NAME); |
| File bodyFile = getContext().getDatabasePath(BODY_DATABASE_NAME); |
| |
| // TODO Make sure attachments are deleted |
| if (databaseFile.exists() && !bodyFile.exists()) { |
| Log.w(TAG, "Deleting orphaned EmailProvider database..."); |
| databaseFile.delete(); |
| } else if (bodyFile.exists() && !databaseFile.exists()) { |
| Log.w(TAG, "Deleting orphaned EmailProviderBody database..."); |
| bodyFile.delete(); |
| } |
| } |
| @Override |
| public Cursor query(Uri uri, String[] projection, String selection, String[] selectionArgs, |
| String sortOrder) { |
| long time = 0L; |
| if (Email.DEBUG) { |
| time = System.nanoTime(); |
| } |
| Cursor c = null; |
| int match; |
| try { |
| match = findMatch(uri, "query"); |
| } catch (IllegalArgumentException e) { |
| String uriString = uri.toString(); |
| // If we were passed an illegal uri, see if it ends in /-1 |
| // if so, and if substituting 0 for -1 results in a valid uri, return an empty cursor |
| if (uriString != null && uriString.endsWith("/-1")) { |
| uri = Uri.parse(uriString.substring(0, uriString.length() - 2) + "0"); |
| match = findMatch(uri, "query"); |
| switch (match) { |
| case BODY_ID: |
| case MESSAGE_ID: |
| case DELETED_MESSAGE_ID: |
| case UPDATED_MESSAGE_ID: |
| case ATTACHMENT_ID: |
| case MAILBOX_ID: |
| case ACCOUNT_ID: |
| case HOSTAUTH_ID: |
| case POLICY_ID: |
| return new MatrixCursor(projection, 0); |
| } |
| } |
| throw e; |
| } |
| Context context = getContext(); |
| // See the comment at delete(), above |
| SQLiteDatabase db = getDatabase(context); |
| int table = match >> BASE_SHIFT; |
| String limit = uri.getQueryParameter(EmailContent.PARAMETER_LIMIT); |
| String id; |
| |
| // Find the cache for this query's table (if any) |
| ContentCache cache = null; |
| String tableName = TABLE_NAMES[table]; |
| // We can only use the cache if there's no selection |
| if (selection == null) { |
| cache = mContentCaches[table]; |
| } |
| if (cache == null) { |
| ContentCache.notCacheable(uri, selection); |
| } |
| |
| try { |
| switch (match) { |
| case MAILBOX_NOTIFICATION: |
| c = notificationQuery(uri); |
| return c; |
| case MAILBOX_MOST_RECENT_MESSAGE: |
| c = mostRecentMessageQuery(uri); |
| return c; |
| case ACCOUNT_DEFAULT_ID: |
| // Start with a snapshot of the cache |
| Map<String, Cursor> accountCache = mCacheAccount.getSnapshot(); |
| long accountId = Account.NO_ACCOUNT; |
| // Find the account with "isDefault" set, or the lowest account ID otherwise. |
| // Note that the snapshot from the cached isn't guaranteed to be sorted in any |
| // way. |
| Collection<Cursor> accounts = accountCache.values(); |
| for (Cursor accountCursor: accounts) { |
| // For now, at least, we can have zero count cursors (e.g. if someone looks |
| // up a non-existent id); we need to skip these |
| if (accountCursor.moveToFirst()) { |
| boolean isDefault = |
| accountCursor.getInt(Account.CONTENT_IS_DEFAULT_COLUMN) == 1; |
| long iterId = accountCursor.getLong(Account.CONTENT_ID_COLUMN); |
| // We'll remember this one if it's the default or the first one we see |
| if (isDefault) { |
| accountId = iterId; |
| break; |
| } else if ((accountId == Account.NO_ACCOUNT) || (iterId < accountId)) { |
| accountId = iterId; |
| } |
| } |
| } |
| // Return a cursor with an id projection |
| MatrixCursor mc = new MatrixCursor(EmailContent.ID_PROJECTION); |
| mc.addRow(new Object[] {accountId}); |
| c = mc; |
| break; |
| case MAILBOX_ID_FROM_ACCOUNT_AND_TYPE: |
| // Get accountId and type and find the mailbox in our map |
| List<String> pathSegments = uri.getPathSegments(); |
| accountId = Long.parseLong(pathSegments.get(1)); |
| int type = Integer.parseInt(pathSegments.get(2)); |
| long mailboxId = getMailboxIdFromMailboxTypeMap(accountId, type); |
| // Return a cursor with an id projection |
| mc = new MatrixCursor(EmailContent.ID_PROJECTION); |
| mc.addRow(new Object[] {mailboxId}); |
| c = mc; |
| break; |
| case BODY: |
| case MESSAGE: |
| case UPDATED_MESSAGE: |
| case DELETED_MESSAGE: |
| case ATTACHMENT: |
| case MAILBOX: |
| case ACCOUNT: |
| case HOSTAUTH: |
| case POLICY: |
| case QUICK_RESPONSE: |
| // Special-case "count of accounts"; it's common and we always know it |
| if (match == ACCOUNT && Arrays.equals(projection, EmailContent.COUNT_COLUMNS) && |
| selection == null && limit.equals("1")) { |
| int accountCount = mMailboxTypeMap.size(); |
| // In the rare case there are MAX_CACHED_ACCOUNTS or more, we can't do this |
| if (accountCount < MAX_CACHED_ACCOUNTS) { |
| mc = new MatrixCursor(projection, 1); |
| mc.addRow(new Object[] {accountCount}); |
| c = mc; |
| break; |
| } |
| } |
| c = db.query(tableName, projection, |
| selection, selectionArgs, null, null, sortOrder, limit); |
| break; |
| case BODY_ID: |
| case MESSAGE_ID: |
| case DELETED_MESSAGE_ID: |
| case UPDATED_MESSAGE_ID: |
| case ATTACHMENT_ID: |
| case MAILBOX_ID: |
| case ACCOUNT_ID: |
| case HOSTAUTH_ID: |
| case POLICY_ID: |
| case QUICK_RESPONSE_ID: |
| id = uri.getPathSegments().get(1); |
| if (cache != null) { |
| c = cache.getCachedCursor(id, projection); |
| } |
| if (c == null) { |
| CacheToken token = null; |
| if (cache != null) { |
| token = cache.getCacheToken(id); |
| } |
| c = db.query(tableName, projection, whereWithId(id, selection), |
| selectionArgs, null, null, sortOrder, limit); |
| if (cache != null) { |
| c = cache.putCursor(c, id, projection, token); |
| } |
| } |
| break; |
| case ATTACHMENTS_MESSAGE_ID: |
| // All attachments for the given message |
| id = uri.getPathSegments().get(2); |
| c = db.query(Attachment.TABLE_NAME, projection, |
| whereWith(Attachment.MESSAGE_KEY + "=" + id, selection), |
| selectionArgs, null, null, sortOrder, limit); |
| break; |
| case QUICK_RESPONSE_ACCOUNT_ID: |
| // All quick responses for the given account |
| id = uri.getPathSegments().get(2); |
| c = db.query(QuickResponse.TABLE_NAME, projection, |
| whereWith(QuickResponse.ACCOUNT_KEY + "=" + id, selection), |
| selectionArgs, null, null, sortOrder); |
| break; |
| default: |
| throw new IllegalArgumentException("Unknown URI " + uri); |
| } |
| } catch (SQLiteException e) { |
| checkDatabases(); |
| throw e; |
| } catch (RuntimeException e) { |
| checkDatabases(); |
| e.printStackTrace(); |
| throw e; |
| } finally { |
| if (cache != null && c != null && Email.DEBUG) { |
| cache.recordQueryTime(c, System.nanoTime() - time); |
| } |
| if (c == null) { |
| // This should never happen, but let's be sure to log it... |
| Log.e(TAG, "Query returning null for uri: " + uri + ", selection: " + selection); |
| } |
| } |
| |
| if ((c != null) && !isTemporary()) { |
| c.setNotificationUri(getContext().getContentResolver(), uri); |
| } |
| return c; |
| } |
| |
| private String whereWithId(String id, String selection) { |
| StringBuilder sb = new StringBuilder(256); |
| sb.append("_id="); |
| sb.append(id); |
| if (selection != null) { |
| sb.append(" AND ("); |
| sb.append(selection); |
| sb.append(')'); |
| } |
| return sb.toString(); |
| } |
| |
| /** |
| * Combine a locally-generated selection with a user-provided selection |
| * |
| * This introduces risk that the local selection might insert incorrect chars |
| * into the SQL, so use caution. |
| * |
| * @param where locally-generated selection, must not be null |
| * @param selection user-provided selection, may be null |
| * @return a single selection string |
| */ |
| private String whereWith(String where, String selection) { |
| if (selection == null) { |
| return where; |
| } |
| StringBuilder sb = new StringBuilder(where); |
| sb.append(" AND ("); |
| sb.append(selection); |
| sb.append(')'); |
| |
| return sb.toString(); |
| } |
| |
| /** |
| * Restore a HostAuth from a database, given its unique id |
| * @param db the database |
| * @param id the unique id (_id) of the row |
| * @return a fully populated HostAuth or null if the row does not exist |
| */ |
| private static HostAuth restoreHostAuth(SQLiteDatabase db, long id) { |
| Cursor c = db.query(HostAuth.TABLE_NAME, HostAuth.CONTENT_PROJECTION, |
| HostAuth.RECORD_ID + "=?", new String[] {Long.toString(id)}, null, null, null); |
| try { |
| if (c.moveToFirst()) { |
| HostAuth hostAuth = new HostAuth(); |
| hostAuth.restore(c); |
| return hostAuth; |
| } |
| return null; |
| } finally { |
| c.close(); |
| } |
| } |
| |
| /** |
| * Copy the Account and HostAuth tables from one database to another |
| * @param fromDatabase the source database |
| * @param toDatabase the destination database |
| * @return the number of accounts copied, or -1 if an error occurred |
| */ |
| private static int copyAccountTables(SQLiteDatabase fromDatabase, SQLiteDatabase toDatabase) { |
| if (fromDatabase == null || toDatabase == null) return -1; |
| |
| // Lock both databases; for the "from" database, we don't want anyone changing it from |
| // under us; for the "to" database, we want to make the operation atomic |
| int copyCount = 0; |
| fromDatabase.beginTransaction(); |
| try { |
| toDatabase.beginTransaction(); |
| try { |
| // Delete anything hanging around here |
| toDatabase.delete(Account.TABLE_NAME, null, null); |
| toDatabase.delete(HostAuth.TABLE_NAME, null, null); |
| |
| // Get our account cursor |
| Cursor c = fromDatabase.query(Account.TABLE_NAME, Account.CONTENT_PROJECTION, |
| null, null, null, null, null); |
| if (c == null) return 0; |
| Log.d(TAG, "fromDatabase accounts: " + c.getCount()); |
| try { |
| // Loop through accounts, copying them and associated host auth's |
| while (c.moveToNext()) { |
| Account account = new Account(); |
| account.restore(c); |
| |
| // Clear security sync key and sync key, as these were specific to the |
| // state of the account, and we've reset that... |
| // Clear policy key so that we can re-establish policies from the server |
| // TODO This is pretty EAS specific, but there's a lot of that around |
| account.mSecuritySyncKey = null; |
| account.mSyncKey = null; |
| account.mPolicyKey = 0; |
| |
| // Copy host auth's and update foreign keys |
| HostAuth hostAuth = restoreHostAuth(fromDatabase, |
| account.mHostAuthKeyRecv); |
| |
| // The account might have gone away, though very unlikely |
| if (hostAuth == null) continue; |
| account.mHostAuthKeyRecv = toDatabase.insert(HostAuth.TABLE_NAME, null, |
| hostAuth.toContentValues()); |
| |
| // EAS accounts have no send HostAuth |
| if (account.mHostAuthKeySend > 0) { |
| hostAuth = restoreHostAuth(fromDatabase, account.mHostAuthKeySend); |
| // Belt and suspenders; I can't imagine that this is possible, |
| // since we checked the validity of the account above, and the |
| // database is now locked |
| if (hostAuth == null) continue; |
| account.mHostAuthKeySend = toDatabase.insert( |
| HostAuth.TABLE_NAME, null, hostAuth.toContentValues()); |
| } |
| |
| // Now, create the account in the "to" database |
| toDatabase.insert(Account.TABLE_NAME, null, account.toContentValues()); |
| copyCount++; |
| } |
| } finally { |
| c.close(); |
| } |
| |
| // Say it's ok to commit |
| toDatabase.setTransactionSuccessful(); |
| } finally { |
| // STOPSHIP: Remove logging here and in at endTransaction() below |
| Log.d(TAG, "ending toDatabase transaction; copyCount = " + copyCount); |
| toDatabase.endTransaction(); |
| } |
| } catch (SQLiteException ex) { |
| Log.w(TAG, "Exception while copying account tables", ex); |
| copyCount = -1; |
| } finally { |
| Log.d(TAG, "ending fromDatabase transaction; copyCount = " + copyCount); |
| fromDatabase.endTransaction(); |
| } |
| return copyCount; |
| } |
| |
| private static SQLiteDatabase getBackupDatabase(Context context) { |
| DBHelper.DatabaseHelper helper = new DBHelper.DatabaseHelper(context, BACKUP_DATABASE_NAME); |
| return helper.getWritableDatabase(); |
| } |
| |
| /** |
| * Backup account data, returning the number of accounts backed up |
| */ |
| private static int backupAccounts(Context context, SQLiteDatabase mainDatabase) { |
| if (Email.DEBUG) { |
| Log.d(TAG, "backupAccounts..."); |
| } |
| SQLiteDatabase backupDatabase = getBackupDatabase(context); |
| try { |
| int numBackedUp = copyAccountTables(mainDatabase, backupDatabase); |
| if (numBackedUp < 0) { |
| Log.e(TAG, "Account backup failed!"); |
| } else if (Email.DEBUG) { |
| Log.d(TAG, "Backed up " + numBackedUp + " accounts..."); |
| } |
| return numBackedUp; |
| } finally { |
| if (backupDatabase != null) { |
| backupDatabase.close(); |
| } |
| } |
| } |
| |
| /** |
| * Restore account data, returning the number of accounts restored |
| */ |
| private static int restoreAccounts(Context context, SQLiteDatabase mainDatabase) { |
| if (Email.DEBUG) { |
| Log.d(TAG, "restoreAccounts..."); |
| } |
| SQLiteDatabase backupDatabase = getBackupDatabase(context); |
| try { |
| int numRecovered = copyAccountTables(backupDatabase, mainDatabase); |
| if (numRecovered > 0) { |
| Log.e(TAG, "Recovered " + numRecovered + " accounts!"); |
| } else if (numRecovered < 0) { |
| Log.e(TAG, "Account recovery failed?"); |
| } else if (Email.DEBUG) { |
| Log.d(TAG, "No accounts to restore..."); |
| } |
| return numRecovered; |
| } finally { |
| if (backupDatabase != null) { |
| backupDatabase.close(); |
| } |
| } |
| } |
| |
| @Override |
| public int update(Uri uri, ContentValues values, String selection, String[] selectionArgs) { |
| // Handle this special case the fastest possible way |
| if (uri == INTEGRITY_CHECK_URI) { |
| checkDatabases(); |
| return 0; |
| } else if (uri == ACCOUNT_BACKUP_URI) { |
| return backupAccounts(getContext(), getDatabase(getContext())); |
| } |
| |
| // Notify all existing cursors, except for ACCOUNT_RESET_NEW_COUNT(_ID) |
| Uri notificationUri = EmailContent.CONTENT_URI; |
| |
| int match = findMatch(uri, "update"); |
| Context context = getContext(); |
| ContentResolver resolver = context.getContentResolver(); |
| // See the comment at delete(), above |
| SQLiteDatabase db = getDatabase(context); |
| int table = match >> BASE_SHIFT; |
| int result; |
| |
| // We do NOT allow setting of unreadCount/messageCount via the provider |
| // These columns are maintained via triggers |
| if (match == MAILBOX_ID || match == MAILBOX) { |
| values.remove(MailboxColumns.UNREAD_COUNT); |
| values.remove(MailboxColumns.MESSAGE_COUNT); |
| } |
| |
| ContentCache cache = mContentCaches[table]; |
| String tableName = TABLE_NAMES[table]; |
| String id = "0"; |
| |
| try { |
| outer: |
| switch (match) { |
| case MAILBOX_ID_ADD_TO_FIELD: |
| case ACCOUNT_ID_ADD_TO_FIELD: |
| id = uri.getPathSegments().get(1); |
| String field = values.getAsString(EmailContent.FIELD_COLUMN_NAME); |
| Long add = values.getAsLong(EmailContent.ADD_COLUMN_NAME); |
| if (field == null || add == null) { |
| throw new IllegalArgumentException("No field/add specified " + uri); |
| } |
| ContentValues actualValues = new ContentValues(); |
| if (cache != null) { |
| cache.lock(id); |
| } |
| try { |
| db.beginTransaction(); |
| try { |
| Cursor c = db.query(tableName, |
| new String[] {EmailContent.RECORD_ID, field}, |
| whereWithId(id, selection), |
| selectionArgs, null, null, null); |
| try { |
| result = 0; |
| String[] bind = new String[1]; |
| if (c.moveToNext()) { |
| bind[0] = c.getString(0); // _id |
| long value = c.getLong(1) + add; |
| actualValues.put(field, value); |
| result = db.update(tableName, actualValues, ID_EQUALS, bind); |
| } |
| db.setTransactionSuccessful(); |
| } finally { |
| c.close(); |
| } |
| } finally { |
| db.endTransaction(); |
| } |
| } finally { |
| if (cache != null) { |
| cache.unlock(id, actualValues); |
| } |
| } |
| break; |
| case SYNCED_MESSAGE_ID: |
| case UPDATED_MESSAGE_ID: |
| case MESSAGE_ID: |
| case BODY_ID: |
| case ATTACHMENT_ID: |
| case MAILBOX_ID: |
| case ACCOUNT_ID: |
| case HOSTAUTH_ID: |
| case QUICK_RESPONSE_ID: |
| case POLICY_ID: |
| id = uri.getPathSegments().get(1); |
| if (cache != null) { |
| cache.lock(id); |
| } |
| try { |
| if (match == SYNCED_MESSAGE_ID) { |
| // For synced messages, first copy the old message to the updated table |
| // Note the insert or ignore semantics, guaranteeing that only the first |
| // update will be reflected in the updated message table; therefore this |
| // row will always have the "original" data |
| db.execSQL(UPDATED_MESSAGE_INSERT + id); |
| } else if (match == MESSAGE_ID) { |
| db.execSQL(UPDATED_MESSAGE_DELETE + id); |
| } |
| result = db.update(tableName, values, whereWithId(id, selection), |
| selectionArgs); |
| } catch (SQLiteException e) { |
| // Null out values (so they aren't cached) and re-throw |
| values = null; |
| throw e; |
| } finally { |
| if (cache != null) { |
| cache.unlock(id, values); |
| } |
| } |
| if (match == ATTACHMENT_ID) { |
| long attId = Integer.parseInt(id); |
| if (values.containsKey(Attachment.FLAGS)) { |
| int flags = values.getAsInteger(Attachment.FLAGS); |
| mAttachmentService.attachmentChanged(context, attId, flags); |
| } |
| } |
| break; |
| case BODY: |
| case MESSAGE: |
| case UPDATED_MESSAGE: |
| case ATTACHMENT: |
| case MAILBOX: |
| case ACCOUNT: |
| case HOSTAUTH: |
| case POLICY: |
| switch(match) { |
| // To avoid invalidating the cache on updates, we execute them one at a |
| // time using the XXX_ID uri; these are all executed atomically |
| case ACCOUNT: |
| case MAILBOX: |
| case HOSTAUTH: |
| case POLICY: |
| Cursor c = db.query(tableName, EmailContent.ID_PROJECTION, |
| selection, selectionArgs, null, null, null); |
| db.beginTransaction(); |
| result = 0; |
| try { |
| while (c.moveToNext()) { |
| update(ContentUris.withAppendedId( |
| uri, c.getLong(EmailContent.ID_PROJECTION_COLUMN)), |
| values, null, null); |
| result++; |
| } |
| db.setTransactionSuccessful(); |
| } finally { |
| db.endTransaction(); |
| c.close(); |
| } |
| break outer; |
| // Any cached table other than those above should be invalidated here |
| case MESSAGE: |
| // If we're doing some generic update, the whole cache needs to be |
| // invalidated. This case should be quite rare |
| cache.invalidate("Update", uri, selection); |
| //$FALL-THROUGH$ |
| default: |
| result = db.update(tableName, values, selection, selectionArgs); |
| break outer; |
| } |
| case ACCOUNT_RESET_NEW_COUNT_ID: |
| id = uri.getPathSegments().get(1); |
| if (cache != null) { |
| cache.lock(id); |
| } |
| ContentValues newMessageCount = CONTENT_VALUES_RESET_NEW_MESSAGE_COUNT; |
| if (values != null) { |
| Long set = values.getAsLong(EmailContent.SET_COLUMN_NAME); |
| if (set != null) { |
| newMessageCount = new ContentValues(); |
| newMessageCount.put(Account.NEW_MESSAGE_COUNT, set); |
| } |
| } |
| try { |
| result = db.update(tableName, newMessageCount, |
| whereWithId(id, selection), selectionArgs); |
| } finally { |
| if (cache != null) { |
| cache.unlock(id, values); |
| } |
| } |
| notificationUri = Account.CONTENT_URI; // Only notify account cursors. |
| break; |
| case ACCOUNT_RESET_NEW_COUNT: |
| result = db.update(tableName, CONTENT_VALUES_RESET_NEW_MESSAGE_COUNT, |
| selection, selectionArgs); |
| // Affects all accounts. Just invalidate all account cache. |
| cache.invalidate("Reset all new counts", null, null); |
| notificationUri = Account.CONTENT_URI; // Only notify account cursors. |
| break; |
| default: |
| throw new IllegalArgumentException("Unknown URI " + uri); |
| } |
| } catch (SQLiteException e) { |
| checkDatabases(); |
| throw e; |
| } |
| |
| // Notify all notifier cursors |
| sendNotifierChange(getBaseNotificationUri(match), NOTIFICATION_OP_UPDATE, id); |
| |
| resolver.notifyChange(notificationUri, null); |
| return result; |
| } |
| |
| /** |
| * Returns the base notification URI for the given content type. |
| * |
| * @param match The type of content that was modified. |
| */ |
| private Uri getBaseNotificationUri(int match) { |
| Uri baseUri = null; |
| switch (match) { |
| case MESSAGE: |
| case MESSAGE_ID: |
| case SYNCED_MESSAGE_ID: |
| baseUri = Message.NOTIFIER_URI; |
| break; |
| case ACCOUNT: |
| case ACCOUNT_ID: |
| baseUri = Account.NOTIFIER_URI; |
| break; |
| } |
| return baseUri; |
| } |
| |
| /** |
| * Sends a change notification to any cursors observers of the given base URI. The final |
| * notification URI is dynamically built to contain the specified information. It will be |
| * of the format <<baseURI>>/<<op>>/<<id>>; where <<op>> and <<id>> are optional depending |
| * upon the given values. For message-related notifications, we also notify the widget |
| * provider. |
| * NOTE: If <<op>> is specified, notifications for <<baseURI>>/<<id>> will NOT be invoked. |
| * If this is necessary, it can be added. However, due to the implementation of |
| * {@link ContentObserver}, observers of <<baseURI>> will receive multiple notifications. |
| * |
| * @param baseUri The base URI to send notifications to. Must be able to take appended IDs. |
| * @param op Optional operation to be appended to the URI. |
| * @param id If a positive value, the ID to append to the base URI. Otherwise, no ID will be |
| * appended to the base URI. |
| */ |
| private void sendNotifierChange(Uri baseUri, String op, String id) { |
| if (baseUri == null) return; |
| Uri uri = baseUri; |
| |
| // Append the operation, if specified |
| if (op != null) { |
| uri = baseUri.buildUpon().appendEncodedPath(op).build(); |
| } |
| |
| long longId = 0L; |
| try { |
| longId = Long.valueOf(id); |
| } catch (NumberFormatException ignore) {} |
| |
| final ContentResolver resolver = getContext().getContentResolver(); |
| if (longId > 0) { |
| resolver.notifyChange(ContentUris.withAppendedId(uri, longId), null); |
| } else { |
| resolver.notifyChange(uri, null); |
| } |
| |
| // If a message has changed, notify any widgets |
| if (baseUri.equals(Message.NOTIFIER_URI)) { |
| sendMessageListDataChangedNotification(); |
| } |
| } |
| |
| private void sendMessageListDataChangedNotification() { |
| final Context context = getContext(); |
| final Intent intent = new Intent(ACTION_NOTIFY_MESSAGE_LIST_DATASET_CHANGED); |
| // Ideally this intent would contain information about which account changed, to limit the |
| // updates to that particular account. Unfortunately, that information is not available in |
| // sendNotifierChange(). |
| context.sendBroadcast(intent); |
| } |
| |
| @Override |
| public ContentProviderResult[] applyBatch(ArrayList<ContentProviderOperation> operations) |
| throws OperationApplicationException { |
| Context context = getContext(); |
| SQLiteDatabase db = getDatabase(context); |
| db.beginTransaction(); |
| try { |
| ContentProviderResult[] results = super.applyBatch(operations); |
| db.setTransactionSuccessful(); |
| return results; |
| } finally { |
| db.endTransaction(); |
| } |
| } |
| |
| /** |
| * For testing purposes, check whether a given row is cached |
| * @param baseUri the base uri of the EmailContent |
| * @param id the row id of the EmailContent |
| * @return whether or not the row is currently cached |
| */ |
| @VisibleForTesting |
| protected boolean isCached(Uri baseUri, long id) { |
| int match = findMatch(baseUri, "isCached"); |
| int table = match >> BASE_SHIFT; |
| ContentCache cache = mContentCaches[table]; |
| if (cache == null) return false; |
| Cursor cc = cache.get(Long.toString(id)); |
| return (cc != null); |
| } |
| |
| public static interface AttachmentService { |
| /** |
| * Notify the service that an attachment has changed. |
| */ |
| void attachmentChanged(Context context, long id, int flags); |
| } |
| |
| private final AttachmentService DEFAULT_ATTACHMENT_SERVICE = new AttachmentService() { |
| @Override |
| public void attachmentChanged(Context context, long id, int flags) { |
| // The default implementation delegates to the real service. |
| AttachmentDownloadService.attachmentChanged(context, id, flags); |
| } |
| }; |
| private AttachmentService mAttachmentService = DEFAULT_ATTACHMENT_SERVICE; |
| |
| /** |
| * Injects a custom attachment service handler. If null is specified, will reset to the |
| * default service. |
| */ |
| public void injectAttachmentService(AttachmentService as) { |
| mAttachmentService = (as == null) ? DEFAULT_ATTACHMENT_SERVICE : as; |
| } |
| |
| // SELECT DISTINCT Boxes._id, Boxes.unreadCount count(Message._id) from Message, |
| // (SELECT _id, unreadCount, messageCount, lastNotifiedMessageCount, lastNotifiedMessageKey |
| // FROM Mailbox WHERE accountKey=6 AND ((type = 0) OR (syncInterval!=0 AND syncInterval!=-1))) |
| // AS Boxes |
| // WHERE Boxes.messageCount!=Boxes.lastNotifiedMessageCount |
| // OR (Boxes._id=Message.mailboxKey AND Message._id>Boxes.lastNotifiedMessageKey) |
| // AND flagRead = 0 AND timeStamp != 0 |
| // TODO: This query can be simplified a bit |
| private static final String NOTIFICATION_QUERY = |
| "SELECT DISTINCT Boxes." + MailboxColumns.ID + ", Boxes." + MailboxColumns.UNREAD_COUNT + |
| ", count(" + Message.TABLE_NAME + "." + MessageColumns.ID + ")" + |
| " FROM " + |
| Message.TABLE_NAME + "," + |
| "(SELECT " + MailboxColumns.ID + "," + MailboxColumns.UNREAD_COUNT + "," + |
| MailboxColumns.MESSAGE_COUNT + "," + MailboxColumns.LAST_NOTIFIED_MESSAGE_COUNT + |
| "," + MailboxColumns.LAST_NOTIFIED_MESSAGE_KEY + " FROM " + Mailbox.TABLE_NAME + |
| " WHERE " + MailboxColumns.ACCOUNT_KEY + "=?" + |
| " AND (" + MailboxColumns.TYPE + "=" + Mailbox.TYPE_INBOX + " OR (" |
| + MailboxColumns.SYNC_INTERVAL + "!=0 AND " + |
| MailboxColumns.SYNC_INTERVAL + "!=-1))) AS Boxes " + |
| "WHERE Boxes." + MailboxColumns.ID + '=' + Message.TABLE_NAME + "." + |
| MessageColumns.MAILBOX_KEY + " AND " + Message.TABLE_NAME + "." + |
| MessageColumns.ID + ">Boxes." + MailboxColumns.LAST_NOTIFIED_MESSAGE_KEY + |
| " AND " + MessageColumns.FLAG_READ + "=0 AND " + MessageColumns.TIMESTAMP + "!=0"; |
| |
| public Cursor notificationQuery(Uri uri) { |
| SQLiteDatabase db = getDatabase(getContext()); |
| String accountId = uri.getLastPathSegment(); |
| return db.rawQuery(NOTIFICATION_QUERY, new String[] {accountId}); |
| } |
| |
| public Cursor mostRecentMessageQuery(Uri uri) { |
| SQLiteDatabase db = getDatabase(getContext()); |
| String mailboxId = uri.getLastPathSegment(); |
| return db.rawQuery("select max(_id) from Message where mailboxKey=?", |
| new String[] {mailboxId}); |
| } |
| } |
