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import { promises as fs } from "fs";
import path from "path";
import { Link } from "../models/Link";
import { decryptData, encryptData } from "./encryption";
const dataDir = path.join(__dirname, "../../src/data/encrypted/");
function parseMyFormat(content: string): any[] {
if (!content.trim()) return [];
return content
.trim()
.split("\n")
.filter((line) => line.trim())
.map((line) => {
const obj: any = {};
line.split(";").forEach((pair) => {
if (!pair.trim()) return;
const [key, ...valueParts] = pair.split("=");
const value = valueParts.join("=");
if (key && value !== undefined) {
obj[key.trim()] = convertValue(value.trim());
}
});
return obj;
});
}
function convertValue(value: string): any {
if (value === "null" || value === "undefined") {
return null;
}
if (value === "true") return true;
if (value === "false") return false;
if (!isNaN(Number(value)) && value !== "") {
return Number(value);
}
if (value.startsWith("[") && value.endsWith("]")) {
try {
const parsed = JSON.parse(value);
if (Array.isArray(parsed) && parsed.length > 0) {
if (typeof parsed[0] === "string" && parsed[0].includes(":")) {
return parsed.map((str) => Link.fromString(str));
}
}
return parsed;
} catch {
return value;
}
}
if (value.startsWith("{") && value.endsWith("}")) {
try {
return JSON.parse(value);
} catch {
return value;
}
}
if (value.includes(":") && !value.includes(" ")) {
const parts = value.split(":");
if (parts.length === 2) {
return Link.fromString(value);
}
}
return value;
}
function serializeValue(value: any): string {
if (value === null || value === undefined) {
return "null";
}
if (value instanceof Link) {
return value.toString();
}
if (Array.isArray(value)) {
if (value.length > 0 && value[0] instanceof Link) {
const linkStrings = value.map((link) => link.toString());
return JSON.stringify(linkStrings);
}
return JSON.stringify(value);
}
if (typeof value === "object") {
return JSON.stringify(value);
}
return String(value);
}
function serializeMyFormat(data: any[]): string {
return data
.map((obj) => {
return Object.entries(obj)
.map(([key, value]) => {
const serializedValue = serializeValue(value);
return `${key}=${serializedValue}`;
})
.join(";");
})
.join("\n");
}
export async function readMyData<T>(filename: string): Promise<T[]> {
const filePath = path.join(dataDir, filename);
try {
// Читаем зашифрованные данные
const encryptedData = await fs.readFile(filePath, "utf-8");
if (!encryptedData.trim()) {
return [];
}
// Расшифровываем и декодируем
const decryptedData = await decryptData(encryptedData);
// Парсим в объекты
return parseMyFormat(decryptedData) as T[];
} catch (err: any) {
if (err.code === "ENOENT") {
await fs.writeFile(filePath, "", "utf-8");
return [];
}
throw new Error(`Failed to read file ${filename}: ${err.message}`);
}
}
export async function writeMyData<T>(
filename: string,
data: T[]
): Promise<void> {
const filePath = path.join(dataDir, filename);
try {
// Сериализуем данные в строку
const serialized = serializeMyFormat(data);
// Кодируем и шифруем
const encrypted = await encryptData(serialized);
// Записываем зашифрованные данные
await fs.writeFile(filePath, encrypted, "utf-8");
} catch (err: any) {
throw new Error(`Failed to write file ${filename}: ${err.message}`);
}
} |