@slack/oauth
Version:
Official library for interacting with Slack's Oauth endpoints
144 lines • 7.59 kB
JavaScript
;
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());
});
};
var __generator = (this && this.__generator) || function (thisArg, body) {
var _ = { label: 0, sent: function() { if (t[0] & 1) throw t[1]; return t[1]; }, trys: [], ops: [] }, f, y, t, g = Object.create((typeof Iterator === "function" ? Iterator : Object).prototype);
return g.next = verb(0), g["throw"] = verb(1), g["return"] = verb(2), typeof Symbol === "function" && (g[Symbol.iterator] = function() { return this; }), g;
function verb(n) { return function (v) { return step([n, v]); }; }
function step(op) {
if (f) throw new TypeError("Generator is already executing.");
while (g && (g = 0, op[0] && (_ = 0)), _) try {
if (f = 1, y && (t = op[0] & 2 ? y["return"] : op[0] ? y["throw"] || ((t = y["return"]) && t.call(y), 0) : y.next) && !(t = t.call(y, op[1])).done) return t;
if (y = 0, t) op = [op[0] & 2, t.value];
switch (op[0]) {
case 0: case 1: t = op; break;
case 4: _.label++; return { value: op[1], done: false };
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}
};
var __importDefault = (this && this.__importDefault) || function (mod) {
return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.FileStateStore = void 0;
var node_fs_1 = __importDefault(require("node:fs"));
var node_os_1 = require("node:os");
var node_path_1 = __importDefault(require("node:path"));
var logger_1 = require("@slack/logger");
var errors_1 = require("../errors");
var FileStateStore = /** @class */ (function () {
function FileStateStore(args) {
this.baseDir = args.baseDir !== undefined ? args.baseDir : "".concat((0, node_os_1.homedir)(), "/.bolt-js-oauth-states");
this.stateExpirationSeconds = args.stateExpirationSeconds !== undefined ? args.stateExpirationSeconds : 600;
this.logger = args.logger !== undefined ? args.logger : new logger_1.ConsoleLogger();
}
FileStateStore.prototype.generateStateParam = function (installOptions, now) {
return __awaiter(this, void 0, void 0, function () {
var state, source;
return __generator(this, function (_a) {
state = generateRandomString();
while (this.alreadyExists(state)) {
// Still race condition can arise here
state = generateRandomString();
}
source = { installOptions: installOptions, now: now };
this.writeToFile(state, source);
return [2 /*return*/, state];
});
});
};
FileStateStore.prototype.verifyStateParam = function (now, state) {
return __awaiter(this, void 0, void 0, function () {
var decoded, message, generatedAt, passedSeconds;
return __generator(this, function (_a) {
try {
decoded = void 0;
try {
decoded = this.readFile(state);
}
catch (e) {
message = "Failed to load the data represented by the state parameter (error: ".concat(e, ")");
throw new errors_1.InvalidStateError(message);
}
if (decoded !== undefined) {
generatedAt = new Date(decoded.now);
passedSeconds = Math.floor((now.getTime() - generatedAt.getTime()) / 1000);
if (passedSeconds > this.stateExpirationSeconds) {
throw new errors_1.InvalidStateError('The state value is already expired');
}
// return installOptions
return [2 /*return*/, decoded.installOptions];
}
}
finally {
this.deleteFile(state);
}
throw new errors_1.InvalidStateError('The state value is already expired');
});
});
};
// -------------------------------------------
// private methods
// -------------------------------------------
FileStateStore.prototype.alreadyExists = function (filename) {
var fullpath = node_path_1.default.resolve("".concat(this.baseDir, "/").concat(filename));
return node_fs_1.default.existsSync(fullpath);
};
FileStateStore.prototype.writeToFile = function (filename, data) {
node_fs_1.default.mkdirSync(this.baseDir, { recursive: true });
var fullpath = node_path_1.default.resolve("".concat(this.baseDir, "/").concat(filename));
node_fs_1.default.writeFileSync(fullpath, JSON.stringify(data));
};
FileStateStore.prototype.readFile = function (filename) {
var fullpath = node_path_1.default.resolve("".concat(this.baseDir, "/").concat(filename));
try {
var data = node_fs_1.default.readFileSync(fullpath);
if (data !== undefined) {
return JSON.parse(data.toString());
}
return undefined;
}
catch (e) {
this.logger.debug("Failed to load state data from file (error: ".concat(e, ")"));
return undefined;
}
};
FileStateStore.prototype.deleteFile = function (filename) {
var fullpath = node_path_1.default.resolve("".concat(this.baseDir, "/").concat(filename));
if (node_fs_1.default.existsSync(fullpath)) {
node_fs_1.default.unlinkSync(fullpath);
}
};
return FileStateStore;
}());
exports.FileStateStore = FileStateStore;
var chars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789';
function generateRandomString(length) {
if (length === void 0) { length = 10; }
var generated = '';
for (var i = 0; i < length; i += 1) {
var position = Math.floor(Math.random() * chars.length);
generated += chars.charAt(position);
}
return generated;
}
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