SecureFileWrapper/lib/index.js

"use strict";
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
    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) : new P(function (resolve) { resolve(result.value); }).then(fulfilled, rejected); }
        step((generator = generator.apply(thisArg, _arguments || [])).next());
    });
};
Object.defineProperty(exports, "__esModule", { value: true });
const observable_1 = require("./observable");
const lock_1 = require("./lock");
class NoConnection extends Error {
    constructor() {
        super("No connection");
        this.type = "noconnection";
    }
}
exports.NoConnection = NoConnection;
class Unauthorized extends Error {
    constructor() {
        super("Not authorized");
        this.type = "unauthorized";
    }
}
exports.Unauthorized = Unauthorized;
class NoPermission extends Error {
    constructor() {
        super("No permission");
        this.type = "nopermission";
    }
}
exports.NoPermission = NoPermission;
class NotFound extends Error {
    constructor() {
        super("Not found");
        this.type = "notfound";
    }
}
exports.NotFound = NotFound;
class BadRequest extends Error {
    constructor() {
        super("Bad request");
        this.type = "badrequest";
    }
}
exports.BadRequest = BadRequest;
const fetch = require("isomorphic-fetch");
function statusParser(res) {
    if (res.status !== 200) {
        switch (res.status) {
            case 400:
                throw new BadRequest();
            case 404:
                throw new NotFound();
            case 403:
                throw new NoPermission();
            case 401:
                throw new Unauthorized();
            default:
                throw new Error(res.statusText);
        }
    }
}
class SecureFileWrapper {
    constructor(server) {
        this.server = server;
        this._jwtObservableServer = new observable_1.default();
        this.jwtObservable = this._jwtObservableServer.getPublicApi();
        this.auth_lock = new lock_1.default();
        if (this.server.endsWith("/")) {
            this.server += "api/v1";
        }
        else {
            this.server += "/api/v1";
        }
    }
    getJWT() {
        return __awaiter(this, void 0, void 0, function* () {
            if (!this.auth_lock.locked) {
                let lock = yield this.auth_lock.getLock();
                this._jwtObservableServer.send((jwt) => {
                    this.jwt = jwt;
                    lock.release();
                });
            }
            yield this.auth_lock.getLock().then(lock => lock.release());
        });
    }
    makeRequest(endpoint, method, query, body, second = false) {
        return __awaiter(this, void 0, void 0, function* () {
            if (!this.jwt || this.jwt === undefined) {
                yield this.getJWT();
            }
            query.jwt = this.jwt;
            let query_str = "?";
            let first = true;
            for (let key in query) {
                if (!first)
                    query_str += "&";
                query_str += encodeURIComponent(key) + "=" + encodeURIComponent(query[key]);
                first = false;
            }
            var headers = {
                "pragme": "no-cache",
                "cache-control": "no-cache"
            };
            let body_n;
            if (body) {
                headers["Content-Type"] = "application/octet-stream";
                body_n = Buffer ? Buffer.from(body instanceof ArrayBuffer ? body : body.buffer) : body;
            }
            try {
                let res = yield fetch(this.server + endpoint + query_str, { method, body: body_n, headers });
                if (res.status === 401 && !second) {
                    yield this.getJWT();
                    return this.makeRequest(endpoint, method, query, body, true);
                }
                else {
                    statusParser(res);
                    return res;
                }
            }
            catch (err) {
                if (err instanceof TypeError || err.errno === "ECONNREFUSED")
                    throw new NoConnection();
                throw err;
            }
        });
    }
    // async test(jwt): Promise<{ user: string, test: true }> {
    //    let res = await this.makeRequest("/test", "GET", {}, undefined, this.jwt_enabled);
    //    statusParser(res);
    //    return await res.json();
    // }
    list(folder) {
        return __awaiter(this, void 0, void 0, function* () {
            let query = {};
            if (folder)
                query.folder = folder;
            let res = yield this.makeRequest("/files", "GET", query);
            let d = yield res.json();
            return d.files;
        });
    }
    create(name, data, type, folder, preview) {
        return __awaiter(this, void 0, void 0, function* () {
            let params = { type: type, name: name };
            if (preview) {
                params.preview = preview;
            }
            if (folder) {
                params.folder = folder;
            }
            let res = yield this.makeRequest("/files", "POST", params, data);
            return (yield res.json()).file;
        });
    }
    get(id, version) {
        return __awaiter(this, void 0, void 0, function* () {
            let res;
            if (typeof version === "string") {
                res = yield this.makeRequest(`/files/${id}/history/${version}`, "GET", {});
            }
            else {
                res = yield this.makeRequest("/files/" + id, "GET", {});
            }
            if (res.arrayBuffer) {
                return res.arrayBuffer();
            }
            else {
                let blob = yield res.buffer();
                // console.log(blob.length);
                return Uint8Array.from(blob).buffer;
            }
        });
    }
    update(id, data, preview) {
        return __awaiter(this, void 0, void 0, function* () {
            let put = {};
            if (preview)
                put.preview = preview;
            let res = yield this.makeRequest("/files/" + id, "PUT", put, data);
            let json = yield res.json();
            return json.file;
        });
    }
    delete(id) {
        return __awaiter(this, void 0, void 0, function* () {
            let res = yield this.makeRequest("/files/" + id, "DELETE", {});
            return res.json();
        });
    }
    history(id) {
        return __awaiter(this, void 0, void 0, function* () {
            let res = yield this.makeRequest(`/files/${id}/history`, "GET", {});
            statusParser(res);
            return res.json();
        });
    }
    restore(id, version) {
        return __awaiter(this, void 0, void 0, function* () {
            yield this.makeRequest(`/files/${id}/history/${version}/restore`, "PUT", {});
        });
    }
}
exports.default = SecureFileWrapper;
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