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Perf: avoid copying memory when decoding telegrm config

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SukkaW 2025-10-19 01:27:35 +08:00
parent 4edcecc1b6
commit 6b0e600ac7
1 changed files with 3 additions and 3 deletions
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6
Build/lib/get-telegram-backup-ip.ts
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@ -25,7 +25,7 @@ export function getTelegramBackupIPFromBase64(base64: string) {
}
// 2. Filter to base64 and check length
// Not needed with Buffer.from
// Not needed with base64ToUint8Array, it has built-in base64-able checking
// 3. Decode base64 to Buffer
const decoded = base64ToUint8Array(base64);
@ -76,7 +76,7 @@ export function getTelegramBackupIPFromBase64(base64: string) {
throw new Error('SHA256 hash mismatch');
}
const parser = new TgExtensions.BinaryReader(Buffer.from(decryptedCbc));
const parser = new TgExtensions.BinaryReader(Buffer.from(decryptedCbc.buffer, decryptedCbc.byteOffset, decryptedCbc.byteLength));
const len = parser.readInt();
if (len < 8 || len > 208) throw new Error(`Invalid TL data length: ${len}`);
@ -88,7 +88,7 @@ export function getTelegramBackupIPFromBase64(base64: string) {
const payload = decryptedCbc.subarray(8, len);
const configSimple = Api.help.ConfigSimple.fromReader(new TgExtensions.BinaryReader(Buffer.from(payload)));
const configSimple = Api.help.ConfigSimple.fromReader(new TgExtensions.BinaryReader(Buffer.from(payload.buffer, payload.byteOffset, payload.byteLength)));
return configSimple.rules.flatMap(rule => rule.ips.map(ip => {
switch (ip.CONSTRUCTOR_ID) {