expo-storage/lib/index.js

Simple way to store persistent data, which does not have size limitations of react-native async-storage.

"use strict";
var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
    if (k2 === undefined) k2 = k;
    var desc = Object.getOwnPropertyDescriptor(m, k);
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      desc = { enumerable: true, get: function() { return m[k]; } };
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    Object.defineProperty(o, k2, desc);
}) : (function(o, m, k, k2) {
    if (k2 === undefined) k2 = k;
    o[k2] = m[k];
}));
var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
    Object.defineProperty(o, "default", { enumerable: true, value: v });
}) : function(o, v) {
    o["default"] = v;
});
var __importStar = (this && this.__importStar) || (function () {
    var ownKeys = function(o) {
        ownKeys = Object.getOwnPropertyNames || function (o) {
            var ar = [];
            for (var k in o) if (Object.prototype.hasOwnProperty.call(o, k)) ar[ar.length] = k;
            return ar;
        };
        return ownKeys(o);
    };
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        if (mod && mod.__esModule) return mod;
        var result = {};
        if (mod != null) for (var k = ownKeys(mod), i = 0; i < k.length; i++) if (k[i] !== "default") __createBinding(result, mod, k[i]);
        __setModuleDefault(result, mod);
        return result;
    };
})();
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
    function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
    return new (P || (P = Promise))(function (resolve, reject) {
        function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
        function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
        function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
        step((generator = generator.apply(thisArg, _arguments || [])).next());
    });
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.Storage = void 0;
const FileSystem = __importStar(require("expo-file-system"));
const CONST = __importStar(require("./consts"));
const isValidKey = (key) => {
    // Prevent path traversal and ensure safe filenames
    const safeKeyRegex = /^[a-zA-Z0-9-_\.]+$/;
    return Boolean(key) && safeKeyRegex.test(key);
};
const serializeValue = (value) => {
    try {
        return typeof value === 'string' ? value : JSON.stringify(value);
    }
    catch (_a) {
        throw new Error('Unable to serialize value');
    }
};
const getErrorMessage = (error) => {
    if (error instanceof Error)
        return error.message;
    return String(error);
};
const isFileNotFoundError = (error) => {
    return error instanceof Error && 'code' in error && error.code === 'ENOENT';
};
const ensureStorageDirectoryExists = () => __awaiter(void 0, void 0, void 0, function* () {
    const dirInfo = yield FileSystem.getInfoAsync(CONST.DOCUMENT_FOLDER);
    if (!dirInfo.exists) {
        yield FileSystem.makeDirectoryAsync(CONST.DOCUMENT_FOLDER, { intermediates: true });
    }
});
exports.Storage = {
    setItem: (_a) => __awaiter(void 0, [_a], void 0, function* ({ key, value }) {
        if (!isValidKey(key)) {
            throw new Error(`Invalid storage key ${key}`);
        }
        yield ensureStorageDirectoryExists();
        const serializedValue = serializeValue(value);
        try {
            yield FileSystem.writeAsStringAsync(`${CONST.DOCUMENT_FOLDER}${key}`, serializedValue);
        }
        catch (error) {
            throw new Error(`Failed to write to storage: ${getErrorMessage(error)}`);
        }
    }),
    getItem: (_a) => __awaiter(void 0, [_a], void 0, function* ({ key }) {
        if (!isValidKey(key)) {
            throw new Error(`Invalid storage key ${key}`);
        }
        try {
            const value = yield FileSystem.readAsStringAsync(`${CONST.DOCUMENT_FOLDER}${key}`);
            return value;
        }
        catch (error) {
            if (isFileNotFoundError(error)) {
                return null;
            }
            throw new Error(`Failed to read from storage: ${getErrorMessage(error)}`);
        }
    }),
    removeItem: (_a) => __awaiter(void 0, [_a], void 0, function* ({ key }) {
        if (!isValidKey(key)) {
            throw new Error(`Invalid storage key ${key}`);
        }
        try {
            yield FileSystem.deleteAsync(`${CONST.DOCUMENT_FOLDER}${key}`, { idempotent: true });
        }
        catch (error) {
            throw new Error(`Failed to remove from storage: ${getErrorMessage(error)}`);
        }
    }),
    getAllKeys: () => __awaiter(void 0, void 0, void 0, function* () {
        try {
            yield ensureStorageDirectoryExists();
            const keys = yield FileSystem.readDirectoryAsync(CONST.DOCUMENT_FOLDER);
            return keys.filter(key => isValidKey(key));
        }
        catch (error) {
            throw new Error(`Failed to list storage keys: ${getErrorMessage(error)}`);
        }
    }),
};
exports.default = exports.Storage;