duskflower/signal-decrypt-backup-wasm
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feat: add partly returning statements and remove DecryptionResult

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duskflower 2025-01-24 17:21:08 +01:00
parent 6bb11e60b7
commit 99774ea523
3 changed files with 39 additions and 54 deletions
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59
test/src/App.tsx
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@ -6,7 +6,8 @@ import { db } from "./db";
export async function decryptBackup(
file: File,
passphrase: string,
progressCallback: (progres: number) => void,
progressCallback: (progress: number) => void,
statementsCallback?: (statements: string[]) => void,
) {
const fileSize = file.size;
console.log("Starting decryption of file size:", fileSize);
@ -30,53 +31,30 @@ export async function decryptBackup(
while (!done) {
try {
done = decryptor.process_chunk(passphrase);
} catch (e) {
console.error("Error processing chunk:", e);
throw e;
} catch (error) {
console.error("Error processing chunk:", error);
throw error;
}
}
statementsCallback?.(decryptor.get_new_decrypted_statements());
offset += chunkSize;
// console.log(`Completed chunk, new offset: ${offset}`);
// if (performance.memory) {
// const memoryInfo = performance.memory;
// console.log(`Total JS Heap Size: ${memoryInfo.totalJSHeapSize} bytes`);
// console.log(`Used JS Heap Size: ${memoryInfo.usedJSHeapSize} bytes`);
// console.log(`JS Heap Size Limit: ${memoryInfo.jsHeapSizeLimit} bytes`);
// } else {
// console.log("Memory information is not available in this environment.");
// }
}
// console.log("All chunks processed, finishing up");
const result = decryptor.finish();
// decryptor.free();
return result;
} catch (e) {
console.error("Decryption failed:", e);
throw e;
} catch (error) {
console.error("Decryption failed:", error);
throw error;
}
}
async function decrypt(file: File, passphrase: string) {
try {
const result = await decryptBackup(file, passphrase, console.info);
// console.log(result, result.database_bytes);
// console.log("Database bytes length:", result.databaseBytes.length);
// console.log(
// "Database bytes as string (partly)",
// new TextDecoder().decode(result.database_bytes.slice(0, 1024 * 50)),
// );
// console.log(result.database_statements);
return result;
// console.log("Preferences:", result.preferences);
// console.log("Key values:", result.keyValues);
} catch (error) {
console.error("Decryption failed:", error);
}
@ -86,14 +64,19 @@ const App: Component = () => {
const [passphrase, setPassphrase] = createSignal("");
const [backupFile, setBackupFile] = createSignal<File>();
let executed = 0;
createEffect(
on(
backupFile,
(currentBackupFile) => {
if (currentBackupFile) {
decrypt(currentBackupFile, passphrase()).then((result) => {
if (result) {
for (const statement of result.database_statements) {
decryptBackup(
currentBackupFile,
passphrase(),
console.info,
(statements) => {
for (const statement of statements) {
try {
console.log("executing");
db.exec(statement);
@ -104,7 +87,11 @@ const App: Component = () => {
}
}
console.log("All statements executed");
executed += statements.length;
},
).then((result) => {
if (result) {
console.log("All statements executed: ", result.length, executed);
console.log(
db.exec("SELECT * from message", {