telegraf-session-firestore
Version:
Google Firestore based session middleware for telegraf.js
157 lines • 7.98 kB
JavaScript
;
var __assign = (this && this.__assign) || function () {
__assign = Object.assign || function(t) {
for (var s, i = 1, n = arguments.length; i < n; i++) {
s = arguments[i];
for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p))
t[p] = s[p];
}
return t;
};
return __assign.apply(this, arguments);
};
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;
return g = { next: verb(0), "throw": verb(1), "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 (_) 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 };
case 5: _.label++; y = op[1]; op = [0]; continue;
case 7: op = _.ops.pop(); _.trys.pop(); continue;
default:
if (!(t = _.trys, t = t.length > 0 && t[t.length - 1]) && (op[0] === 6 || op[0] === 2)) { _ = 0; continue; }
if (op[0] === 3 && (!t || (op[1] > t[0] && op[1] < t[3]))) { _.label = op[1]; break; }
if (op[0] === 6 && _.label < t[1]) { _.label = t[1]; t = op; break; }
if (t && _.label < t[2]) { _.label = t[2]; _.ops.push(op); break; }
if (t[2]) _.ops.pop();
_.trys.pop(); continue;
}
op = body.call(thisArg, _);
} catch (e) { op = [6, e]; y = 0; } finally { f = t = 0; }
if (op[0] & 5) throw op[1]; return { value: op[0] ? op[1] : void 0, done: true };
}
};
function middleware(collection, opts) {
var _this = this;
var DEFAULT_OPTIONS = {
getSessionKey: function (ctx) {
return ctx.from && ctx.chat && ctx.from.id + "-" + ctx.chat.id;
},
lazy: function () { return false; },
};
var completeOpts = __assign(__assign({}, DEFAULT_OPTIONS), opts);
var options = {
getSessionKey: completeOpts.getSessionKey,
lazy: function (ctx) { return __awaiter(_this, void 0, void 0, function () {
return __generator(this, function (_a) {
return [2 /*return*/, typeof completeOpts.lazy === 'function'
? completeOpts.lazy(ctx)
: completeOpts.lazy];
});
}); },
};
function getSession(key) {
return __awaiter(this, void 0, void 0, function () {
var snapshot;
return __generator(this, function (_a) {
switch (_a.label) {
case 0: return [4 /*yield*/, collection.doc(key).get()
// Assume we can cast document to session data
];
case 1:
snapshot = _a.sent();
// Assume we can cast document to session data
return [2 /*return*/, snapshot.data()];
}
});
});
}
function saveSession(key, session) {
if (session == null || Object.keys(session).length === 0) {
return collection.doc(key).delete();
}
return collection.doc(key).set(session);
}
return function (ctx, next) { return __awaiter(_this, void 0, void 0, function () {
var key, immediate, session, sessionP, n, _a, _b;
return __generator(this, function (_c) {
switch (_c.label) {
case 0:
key = options.getSessionKey(ctx);
if (key === undefined) {
return [2 /*return*/, next === null || next === void 0 ? void 0 : next()];
}
return [4 /*yield*/, options.lazy(ctx)];
case 1:
immediate = !(_c.sent());
if (!immediate) return [3 /*break*/, 3];
return [4 /*yield*/, getSession(key)];
case 2:
session = (_c.sent()) || {};
_c.label = 3;
case 3:
Object.defineProperty(ctx, 'session', {
get: function () {
var _this = this;
// returns either session or sessionP, depending on laziness
if (immediate) {
return session;
}
else {
if (sessionP === undefined)
// eslint-disable-next-line no-async-promise-executor
sessionP = new Promise(function (resolve) { return __awaiter(_this, void 0, void 0, function () {
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
if (!(session === undefined)) return [3 /*break*/, 2];
return [4 /*yield*/, getSession(key)];
case 1:
session = (_a.sent()) || {};
_a.label = 2;
case 2:
resolve(session);
return [2 /*return*/];
}
});
}); });
return sessionP;
}
},
set: function (newValue) {
session = Object.assign({}, newValue);
},
});
return [4 /*yield*/, (next === null || next === void 0 ? void 0 : next())];
case 4:
n = _c.sent();
if (!immediate) return [3 /*break*/, 5];
return [2 /*return*/, saveSession(key, session)];
case 5:
if (!(sessionP !== undefined)) return [3 /*break*/, 7];
_a = saveSession;
_b = [key];
return [4 /*yield*/, sessionP];
case 6: return [2 /*return*/, _a.apply(void 0, _b.concat([_c.sent()]))];
case 7: return [2 /*return*/, n];
}
});
}); };
}
module.exports = middleware;
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