lynx-framework
Version:
lynx is a NodeJS framework for Web Development, based on decorators and the async/await support.
208 lines (206 loc) • 13.8 kB
JavaScript
"use strict";
var __extends = (this && this.__extends) || (function () {
var extendStatics = function (d, b) {
extendStatics = Object.setPrototypeOf ||
({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
return extendStatics(d, b);
};
return function (d, b) {
extendStatics(d, b);
function __() { this.constructor = d; }
d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
};
})();
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 };
}
};
Object.defineProperty(exports, "__esModule", { value: true });
var async_response_1 = require("./async.response");
var Jimp = require("jimp");
var fs = require("fs");
var app_1 = require("./app");
var logger_1 = require("./logger");
function fileExists(path) {
return new Promise(function (res, _) {
fs.exists(path, function (val) {
res(val);
});
});
}
function saveToCache(path, s) {
if (!app_1.app.config.cachingImages) {
return;
}
s.writeAsync(path).catch(function (err) { return logger_1.default.shared.error(err); });
}
function saveBuffToCache(path, buff) {
if (!app_1.app.config.cachingImages) {
return;
}
fs.writeFile(path, buff, function (err) {
logger_1.default.shared.error(err);
});
}
/**
* Generation of a File response.
*/
var FileResponse = /** @class */ (function (_super) {
__extends(FileResponse, _super);
function FileResponse(path) {
var _this = _super.call(this) || this;
_this.path = path;
return _this;
}
Object.defineProperty(FileResponse.prototype, "contentType", {
/**
* Set the content type of the response.
* @param value the content type
*/
set: function (value) {
this._contentType = value;
},
enumerable: false,
configurable: true
});
Object.defineProperty(FileResponse.prototype, "fileName", {
/**
* Set the name of the file to download
* @param value the name of the file
*/
set: function (value) {
this._fileName = value;
},
enumerable: false,
configurable: true
});
Object.defineProperty(FileResponse.prototype, "options", {
/**
* Set the file options, to correctly generate the response.
* @param value the FileOptions
*/
set: function (value) {
this._options = value;
},
enumerable: false,
configurable: true
});
FileResponse.prototype.download = function (res, path) {
if (this._fileName) {
return res.download(path, this._fileName);
}
res.download(path);
};
/**
* Generation of the response.
* This method can eventually perform some transformation on output if a
* FileOptions was specified.
*/
FileResponse.prototype.asyncResponse = function (_, res) {
return __awaiter(this, void 0, void 0, function () {
var path, cachePath, buff, img, hasProcessing, buff;
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
if (this._contentType) {
res.contentType(this._contentType);
}
return [4 /*yield*/, app_1.app.config.ufs.getToCache(this.path, app_1.app.config.cachePath)];
case 1:
path = _a.sent();
if (!this._options) {
return [2 /*return*/, this.download(res, path)];
}
cachePath = path + '_' + JSON.stringify(this._options);
return [4 /*yield*/, fileExists(cachePath)];
case 2:
if (_a.sent()) {
return [2 /*return*/, this.download(res, cachePath)];
}
return [4 /*yield*/, fileExists(path)];
case 3:
if (!(_a.sent())) {
res.status(404);
res.end();
return [2 /*return*/];
}
if (!(app_1.app.customResizeFunction != null &&
(this._options.height || this._options.width))) return [3 /*break*/, 5];
return [4 /*yield*/, app_1.app.customResizeFunction(path, this._options)];
case 4:
buff = _a.sent();
res.send(buff);
res.end();
saveBuffToCache(cachePath, buff);
return [2 /*return*/];
case 5:
img = {};
hasProcessing = false;
if (!!this._options.height) return [3 /*break*/, 7];
return [4 /*yield*/, Jimp.read(path)];
case 6:
img = _a.sent();
img = img.resize(this._options.width, Jimp.AUTO);
hasProcessing = true;
_a.label = 7;
case 7:
if (!(this._options.width && this._options.height)) return [3 /*break*/, 9];
hasProcessing = true;
return [4 /*yield*/, Jimp.read(path)];
case 8:
img = _a.sent();
img = img.resize(this._options.width, this._options.height);
_a.label = 9;
case 9:
if (!hasProcessing) return [3 /*break*/, 11];
return [4 /*yield*/, img.getBufferAsync(this._contentType)];
case 10:
buff = _a.sent();
res.send(buff);
res.end();
saveToCache(cachePath, img);
return [2 /*return*/];
case 11:
this.download(res, path);
return [2 /*return*/];
}
});
});
};
return FileResponse;
}(async_response_1.default));
exports.default = FileResponse;
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