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686 lines
17 KiB
TypeScript
686 lines
17 KiB
TypeScript
import * as BetterSqlite3 from '@signalapp/better-sqlite3';
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import { isNumber } from 'lodash';
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import path from 'path';
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import {
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ATTACHMENT_DOWNLOADS_TABLE,
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CONVERSATIONS_TABLE,
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HEX_KEY,
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IDENTITY_KEYS_TABLE,
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ITEMS_TABLE,
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LAST_HASHES_TABLE,
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MESSAGES_FTS_TABLE,
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MESSAGES_TABLE,
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} from '../database_utility';
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import { getAppRootPath } from '../getRootPath';
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import { updateSessionSchema } from './sessionMigrations';
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// tslint:disable: no-console quotemark non-literal-fs-path one-variable-per-declaration
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const openDbOptions = {
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// tslint:disable-next-line: no-constant-condition
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verbose: false ? console.log : undefined,
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nativeBinding: path.join(
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getAppRootPath(),
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'node_modules',
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'@signalapp',
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'better-sqlite3',
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'build',
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'Release',
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'better_sqlite3.node'
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),
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};
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// tslint:disable: no-console one-variable-per-declaration
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function updateToSchemaVersion1(currentVersion: number, db: BetterSqlite3.Database) {
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if (currentVersion >= 1) {
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return;
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}
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console.log('updateToSchemaVersion1: starting...');
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db.transaction(() => {
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db.exec(
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`CREATE TABLE ${MESSAGES_TABLE}(
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id STRING PRIMARY KEY ASC,
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json TEXT,
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unread INTEGER,
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expires_at INTEGER,
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sent BOOLEAN,
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sent_at INTEGER,
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schemaVersion INTEGER,
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conversationId STRING,
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received_at INTEGER,
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source STRING,
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sourceDevice STRING,
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hasAttachments INTEGER,
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hasFileAttachments INTEGER,
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hasVisualMediaAttachments INTEGER
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);
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CREATE INDEX messages_unread ON ${MESSAGES_TABLE} (
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unread
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);
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CREATE INDEX messages_expires_at ON ${MESSAGES_TABLE} (
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expires_at
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);
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CREATE INDEX messages_receipt ON ${MESSAGES_TABLE} (
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sent_at
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);
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CREATE INDEX messages_schemaVersion ON ${MESSAGES_TABLE} (
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schemaVersion
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);
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CREATE INDEX messages_conversation ON ${MESSAGES_TABLE} (
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conversationId,
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received_at
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);
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CREATE INDEX messages_duplicate_check ON ${MESSAGES_TABLE} (
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source,
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sourceDevice,
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sent_at
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);
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CREATE INDEX messages_hasAttachments ON ${MESSAGES_TABLE} (
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conversationId,
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hasAttachments,
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received_at
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);
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CREATE INDEX messages_hasFileAttachments ON ${MESSAGES_TABLE} (
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conversationId,
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hasFileAttachments,
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received_at
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);
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CREATE INDEX messages_hasVisualMediaAttachments ON ${MESSAGES_TABLE} (
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conversationId,
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hasVisualMediaAttachments,
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received_at
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);
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CREATE TABLE unprocessed(
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id STRING,
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timestamp INTEGER,
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json TEXT
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);
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CREATE INDEX unprocessed_id ON unprocessed (
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id
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);
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CREATE INDEX unprocessed_timestamp ON unprocessed (
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timestamp
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);
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`
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);
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db.pragma('user_version = 1');
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})();
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// tslint:disable: no-console
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console.log('updateToSchemaVersion1: success!');
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}
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function updateToSchemaVersion2(currentVersion: number, db: BetterSqlite3.Database) {
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if (currentVersion >= 2) {
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return;
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}
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console.log('updateToSchemaVersion2: starting...');
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db.transaction(() => {
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db.exec(`ALTER TABLE ${MESSAGES_TABLE}
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ADD COLUMN expireTimer INTEGER;
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ALTER TABLE ${MESSAGES_TABLE}
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ADD COLUMN expirationStartTimestamp INTEGER;
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ALTER TABLE ${MESSAGES_TABLE}
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ADD COLUMN type STRING;
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CREATE INDEX messages_expiring ON ${MESSAGES_TABLE} (
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expireTimer,
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expirationStartTimestamp,
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expires_at
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);
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UPDATE ${MESSAGES_TABLE} SET
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expirationStartTimestamp = json_extract(json, '$.expirationStartTimestamp'),
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expireTimer = json_extract(json, '$.expireTimer'),
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type = json_extract(json, '$.type');
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`);
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db.pragma('user_version = 2');
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})();
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console.log('updateToSchemaVersion2: success!');
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}
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function updateToSchemaVersion3(currentVersion: number, db: BetterSqlite3.Database) {
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if (currentVersion >= 3) {
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return;
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}
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console.log('updateToSchemaVersion3: starting...');
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db.transaction(() => {
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db.exec(`
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DROP INDEX messages_expiring;
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DROP INDEX messages_unread;
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CREATE INDEX messages_without_timer ON ${MESSAGES_TABLE} (
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expireTimer,
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expires_at,
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type
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) WHERE expires_at IS NULL AND expireTimer IS NOT NULL;
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CREATE INDEX messages_unread ON ${MESSAGES_TABLE} (
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conversationId,
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unread
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) WHERE unread IS NOT NULL;
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ANALYZE;
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`);
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db.pragma('user_version = 3');
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})();
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console.log('updateToSchemaVersion3: success!');
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}
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function updateToSchemaVersion4(currentVersion: number, db: BetterSqlite3.Database) {
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if (currentVersion >= 4) {
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return;
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}
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console.log('updateToSchemaVersion4: starting...');
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db.transaction(() => {
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db.exec(`
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CREATE TABLE ${CONVERSATIONS_TABLE}(
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id STRING PRIMARY KEY ASC,
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json TEXT,
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active_at INTEGER,
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type STRING,
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members TEXT,
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name TEXT,
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profileName TEXT
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);
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CREATE INDEX conversations_active ON ${CONVERSATIONS_TABLE} (
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active_at
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) WHERE active_at IS NOT NULL;
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CREATE INDEX conversations_type ON ${CONVERSATIONS_TABLE} (
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type
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) WHERE type IS NOT NULL;
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`);
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db.pragma('user_version = 4');
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})();
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console.log('updateToSchemaVersion4: success!');
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}
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function updateToSchemaVersion6(currentVersion: number, db: BetterSqlite3.Database) {
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if (currentVersion >= 6) {
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return;
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}
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console.log('updateToSchemaVersion6: starting...');
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db.transaction(() => {
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db.exec(`
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CREATE TABLE ${LAST_HASHES_TABLE}(
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snode TEXT PRIMARY KEY,
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hash TEXT,
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expiresAt INTEGER
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);
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CREATE TABLE seenMessages(
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hash TEXT PRIMARY KEY,
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expiresAt INTEGER
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);
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CREATE TABLE sessions(
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id STRING PRIMARY KEY ASC,
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number STRING,
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json TEXT
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);
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CREATE INDEX sessions_number ON sessions (
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number
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) WHERE number IS NOT NULL;
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CREATE TABLE groups(
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id STRING PRIMARY KEY ASC,
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json TEXT
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);
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CREATE TABLE ${IDENTITY_KEYS_TABLE}(
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id STRING PRIMARY KEY ASC,
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json TEXT
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);
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CREATE TABLE ${ITEMS_TABLE}(
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id STRING PRIMARY KEY ASC,
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json TEXT
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);
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CREATE TABLE preKeys(
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id INTEGER PRIMARY KEY ASC,
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recipient STRING,
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json TEXT
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);
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CREATE TABLE signedPreKeys(
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id INTEGER PRIMARY KEY ASC,
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json TEXT
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);
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CREATE TABLE contactPreKeys(
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id INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT,
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identityKeyString VARCHAR(255),
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keyId INTEGER,
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json TEXT
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);
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CREATE UNIQUE INDEX contact_prekey_identity_key_string_keyid ON contactPreKeys (
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identityKeyString,
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keyId
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);
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CREATE TABLE contactSignedPreKeys(
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id INTEGER NOT NULL PRIMARY KEY AUTOINCREMENT,
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identityKeyString VARCHAR(255),
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keyId INTEGER,
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json TEXT
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);
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CREATE UNIQUE INDEX contact_signed_prekey_identity_key_string_keyid ON contactSignedPreKeys (
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identityKeyString,
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keyId
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);
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`);
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db.pragma('user_version = 6');
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})();
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console.log('updateToSchemaVersion6: success!');
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}
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function updateToSchemaVersion7(currentVersion: number, db: BetterSqlite3.Database) {
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if (currentVersion >= 7) {
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return;
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}
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console.log('updateToSchemaVersion7: starting...');
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db.transaction(() => {
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db.exec(`
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-- SQLite has been coercing our STRINGs into numbers, so we force it with TEXT
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-- We create a new table then copy the data into it, since we can't modify columns
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DROP INDEX sessions_number;
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ALTER TABLE sessions RENAME TO sessions_old;
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CREATE TABLE sessions(
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id TEXT PRIMARY KEY,
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number TEXT,
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json TEXT
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);
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CREATE INDEX sessions_number ON sessions (
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number
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) WHERE number IS NOT NULL;
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INSERT INTO sessions(id, number, json)
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SELECT id, number, json FROM sessions_old;
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DROP TABLE sessions_old;
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`);
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db.pragma('user_version = 7');
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})();
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console.log('updateToSchemaVersion7: success!');
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}
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function updateToSchemaVersion8(currentVersion: number, db: BetterSqlite3.Database) {
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if (currentVersion >= 8) {
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return;
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}
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console.log('updateToSchemaVersion8: starting...');
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db.transaction(() => {
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db.exec(`
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-- First, we pull a new body field out of the message table's json blob
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ALTER TABLE ${MESSAGES_TABLE}
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ADD COLUMN body TEXT;
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UPDATE ${MESSAGES_TABLE} SET body = json_extract(json, '$.body');
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-- Then we create our full-text search table and populate it
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CREATE VIRTUAL TABLE ${MESSAGES_FTS_TABLE}
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USING fts5(id UNINDEXED, body);
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INSERT INTO ${MESSAGES_FTS_TABLE}(id, body)
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SELECT id, body FROM ${MESSAGES_TABLE};
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-- Then we set up triggers to keep the full-text search table up to date
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CREATE TRIGGER messages_on_insert AFTER INSERT ON ${MESSAGES_TABLE} BEGIN
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INSERT INTO ${MESSAGES_FTS_TABLE} (
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id,
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body
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) VALUES (
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new.id,
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new.body
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);
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END;
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CREATE TRIGGER messages_on_delete AFTER DELETE ON ${MESSAGES_TABLE} BEGIN
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DELETE FROM ${MESSAGES_FTS_TABLE} WHERE id = old.id;
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END;
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CREATE TRIGGER messages_on_update AFTER UPDATE ON ${MESSAGES_TABLE} BEGIN
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DELETE FROM ${MESSAGES_FTS_TABLE} WHERE id = old.id;
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INSERT INTO ${MESSAGES_FTS_TABLE}(
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id,
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body
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) VALUES (
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new.id,
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new.body
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);
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END;
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`);
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// For formatting search results:
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// https://sqlite.org/fts5.html#the_highlight_function
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// https://sqlite.org/fts5.html#the_snippet_function
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db.pragma('user_version = 8');
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})();
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console.log('updateToSchemaVersion8: success!');
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}
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function updateToSchemaVersion9(currentVersion: number, db: BetterSqlite3.Database) {
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if (currentVersion >= 9) {
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return;
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}
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console.log('updateToSchemaVersion9: starting...');
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db.transaction(() => {
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db.exec(`
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CREATE TABLE ${ATTACHMENT_DOWNLOADS_TABLE}(
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id STRING primary key,
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timestamp INTEGER,
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pending INTEGER,
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json TEXT
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);
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CREATE INDEX attachment_downloads_timestamp
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ON ${ATTACHMENT_DOWNLOADS_TABLE} (
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timestamp
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) WHERE pending = 0;
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CREATE INDEX attachment_downloads_pending
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ON ${ATTACHMENT_DOWNLOADS_TABLE} (
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pending
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) WHERE pending != 0;
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`);
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db.pragma('user_version = 9');
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})();
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console.log('updateToSchemaVersion9: success!');
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}
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function updateToSchemaVersion10(currentVersion: number, db: BetterSqlite3.Database) {
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if (currentVersion >= 10) {
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return;
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}
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console.log('updateToSchemaVersion10: starting...');
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db.transaction(() => {
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db.exec(`
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DROP INDEX unprocessed_id;
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DROP INDEX unprocessed_timestamp;
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ALTER TABLE unprocessed RENAME TO unprocessed_old;
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CREATE TABLE unprocessed(
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id STRING,
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timestamp INTEGER,
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version INTEGER,
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attempts INTEGER,
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envelope TEXT,
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decrypted TEXT,
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source TEXT,
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sourceDevice TEXT,
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serverTimestamp INTEGER
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);
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CREATE INDEX unprocessed_id ON unprocessed (
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id
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);
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CREATE INDEX unprocessed_timestamp ON unprocessed (
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timestamp
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);
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INSERT INTO unprocessed (
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id,
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timestamp,
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version,
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attempts,
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envelope,
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decrypted,
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source,
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sourceDevice,
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serverTimestamp
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) SELECT
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id,
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timestamp,
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json_extract(json, '$.version'),
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json_extract(json, '$.attempts'),
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json_extract(json, '$.envelope'),
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json_extract(json, '$.decrypted'),
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json_extract(json, '$.source'),
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json_extract(json, '$.sourceDevice'),
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json_extract(json, '$.serverTimestamp')
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FROM unprocessed_old;
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DROP TABLE unprocessed_old;
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`);
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db.pragma('user_version = 10');
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})();
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console.log('updateToSchemaVersion10: success!');
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}
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function updateToSchemaVersion11(currentVersion: number, db: BetterSqlite3.Database) {
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if (currentVersion >= 11) {
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return;
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}
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console.log('updateToSchemaVersion11: starting...');
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db.transaction(() => {
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db.exec(`
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DROP TABLE groups;
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`);
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db.pragma('user_version = 11');
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})();
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console.log('updateToSchemaVersion11: success!');
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}
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const SCHEMA_VERSIONS = [
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updateToSchemaVersion1,
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updateToSchemaVersion2,
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updateToSchemaVersion3,
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updateToSchemaVersion4,
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() => null, // version 5 was dropped
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updateToSchemaVersion6,
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updateToSchemaVersion7,
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updateToSchemaVersion8,
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updateToSchemaVersion9,
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updateToSchemaVersion10,
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updateToSchemaVersion11,
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];
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export async function updateSchema(db: BetterSqlite3.Database) {
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const sqliteVersion = getSQLiteVersion(db);
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const sqlcipherVersion = getSQLCipherVersion(db);
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const userVersion = getUserVersion(db);
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const maxUserVersion = SCHEMA_VERSIONS.length;
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const schemaVersion = getSchemaVersion(db);
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console.log('updateSchema:');
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console.log(` Current user_version: ${userVersion}`);
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console.log(` Most recent db schema: ${maxUserVersion}`);
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console.log(` SQLite version: ${sqliteVersion}`);
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console.log(` SQLCipher version: ${sqlcipherVersion}`);
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console.log(` (deprecated) schema_version: ${schemaVersion}`);
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for (let index = 0, max = SCHEMA_VERSIONS.length; index < max; index += 1) {
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const runSchemaUpdate = SCHEMA_VERSIONS[index];
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runSchemaUpdate(schemaVersion, db);
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}
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await updateSessionSchema(db);
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}
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function migrateSchemaVersion(db: BetterSqlite3.Database) {
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const userVersion = getUserVersion(db);
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if (userVersion > 0) {
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return;
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}
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const schemaVersion = getSchemaVersion(db);
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const newUserVersion = schemaVersion > 18 ? 16 : schemaVersion;
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console.log(
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'migrateSchemaVersion: Migrating from schema_version ' +
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`${schemaVersion} to user_version ${newUserVersion}`
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);
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setUserVersion(db, newUserVersion);
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}
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function getUserVersion(db: BetterSqlite3.Database) {
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try {
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return db.pragma('user_version', { simple: true });
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} catch (e) {
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console.error('getUserVersion error', e);
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return 0;
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}
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}
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function setUserVersion(db: BetterSqlite3.Database, version: number) {
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if (!isNumber(version)) {
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throw new Error(`setUserVersion: version ${version} is not a number`);
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}
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db.pragma(`user_version = ${version}`);
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}
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export function openAndMigrateDatabase(filePath: string, key: string) {
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let db;
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// First, we try to open the database without any cipher changes
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try {
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db = new (BetterSqlite3 as any).default(filePath, openDbOptions);
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keyDatabase(db, key);
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switchToWAL(db);
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migrateSchemaVersion(db);
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db.pragma('secure_delete = ON');
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return db;
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} catch (error) {
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if (db) {
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db.close();
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}
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console.log('migrateDatabase: Migration without cipher change failed', error.message);
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}
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// If that fails, we try to open the database with 3.x compatibility to extract the
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|
// user_version (previously stored in schema_version, blown away by cipher_migrate).
|
|
|
|
let db1;
|
|
try {
|
|
db1 = new (BetterSqlite3 as any).default(filePath, openDbOptions);
|
|
keyDatabase(db1, key);
|
|
|
|
// https://www.zetetic.net/blog/2018/11/30/sqlcipher-400-release/#compatability-sqlcipher-4-0-0
|
|
db1.pragma('cipher_compatibility = 3');
|
|
migrateSchemaVersion(db1);
|
|
db1.close();
|
|
} catch (error) {
|
|
if (db1) {
|
|
db1.close();
|
|
}
|
|
console.log('migrateDatabase: migrateSchemaVersion failed', error);
|
|
return null;
|
|
}
|
|
// After migrating user_version -> schema_version, we reopen database, because we can't
|
|
// migrate to the latest ciphers after we've modified the defaults.
|
|
let db2;
|
|
try {
|
|
db2 = new (BetterSqlite3 as any).default(filePath, openDbOptions);
|
|
keyDatabase(db2, key);
|
|
|
|
db2.pragma('cipher_migrate');
|
|
switchToWAL(db2);
|
|
|
|
// Because foreign key support is not enabled by default!
|
|
db2.pragma('foreign_keys = OFF');
|
|
|
|
return db2;
|
|
} catch (error) {
|
|
if (db2) {
|
|
db2.close();
|
|
}
|
|
console.log('migrateDatabase: switchToWAL failed');
|
|
return null;
|
|
}
|
|
}
|
|
|
|
function getSQLiteVersion(db: BetterSqlite3.Database) {
|
|
const { sqlite_version } = db.prepare('select sqlite_version() as sqlite_version').get();
|
|
return sqlite_version;
|
|
}
|
|
|
|
function getSchemaVersion(db: BetterSqlite3.Database) {
|
|
return db.pragma('schema_version', { simple: true });
|
|
}
|
|
|
|
function getSQLCipherVersion(db: BetterSqlite3.Database) {
|
|
return db.pragma('cipher_version', { simple: true });
|
|
}
|
|
|
|
export function getSQLCipherIntegrityCheck(db: BetterSqlite3.Database) {
|
|
const rows = db.pragma('cipher_integrity_check');
|
|
if (rows.length === 0) {
|
|
return undefined;
|
|
}
|
|
return rows.map((row: any) => row.cipher_integrity_check);
|
|
}
|
|
|
|
function keyDatabase(db: BetterSqlite3.Database, key: string) {
|
|
// https://www.zetetic.net/sqlcipher/sqlcipher-api/#key
|
|
// If the password isn't hex then we need to derive a key from it
|
|
|
|
const deriveKey = HEX_KEY.test(key);
|
|
|
|
const value = deriveKey ? `'${key}'` : `"x'${key}'"`;
|
|
|
|
const pragramToRun = `key = ${value}`;
|
|
|
|
db.pragma(pragramToRun);
|
|
}
|
|
|
|
function switchToWAL(db: BetterSqlite3.Database) {
|
|
// https://sqlite.org/wal.html
|
|
db.pragma('journal_mode = WAL');
|
|
db.pragma('synchronous = FULL');
|
|
}
|