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Encrypt message data at rest

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Dragory 2020-09-16 22:32:43 +03:00
parent 3f3d6af4ed
commit baa3a5640e
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10 changed files with 121 additions and 3 deletions
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backend/src/migrations/1600283341726-EncryptExistingMessages.ts Normal file
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import { MigrationInterface, QueryRunner } from "typeorm";
import { decrypt, encrypt } from "../utils/crypt";
export class EncryptExistingMessages1600283341726 implements MigrationInterface {
public async up(queryRunner: QueryRunner): Promise<any> {
// 1. Delete non-permanent messages
await queryRunner.query("DELETE FROM messages WHERE is_permanent = 0");
// 2. Encrypt all permanent messages
const messages = await queryRunner.query("SELECT id, data FROM messages");
for (const message of messages) {
const encryptedData = encrypt(message.data);
await queryRunner.query("UPDATE messages SET data = ? WHERE id = ?", [encryptedData, message.id]);
}
}
public async down(queryRunner: QueryRunner): Promise<any> {
// Decrypt all messages
const messages = await queryRunner.query("SELECT id, data FROM messages");
for (const message of messages) {
const decryptedData = decrypt(message.data);
await queryRunner.query("UPDATE messages SET data = ? WHERE id = ?", [decryptedData, message.id]);
}
}
}