wxlitian/miniprogram/miniprogram_npm/signalr-for-wx/wx-request/index.js

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import { RequestMethod } from "./model/RequestMethod";
import { ResponseType } from "./model/ResponseType";
import { LogLevel } from "../ILogger";
import { TimeoutError, HttpError } from "../Errors";
import { NullLogger } from "../Loggers";
/**
 * 封装微信ajax请求工具
 * @author halo
 */
var Request = /** @class */ (function () {
    /**
     * Creates an instance of Request.
     * 实例化配置
     * @param {*} [config]
     * @memberof Request
     */
    function Request(config, logger) {
        if (config === void 0) { config = {}; }
        // 写入配置
        if (wx) {
            // Time: 继承 signalR logger. 日志统一维护
            this.logger = logger ? logger : new NullLogger();
        }
        else {
            throw new Error("当前运行环境不是微信运行环境");
        }
        // custom wx request promise library.
        this.setConfig(config);
    }
    /**
     * merge config
     * @param config
     */
    Request.prototype.setConfig = function (config) {
        if (config === void 0) { config = {}; }
        // 合并默认配置和
        this.config = __assign({ baseUrl: "http://", headers: { "Content-Type": "application/json" }, forceEnableHttps: false, method: RequestMethod.GET, responseType: ResponseType.JSON, responseEncoding: "utf8", timeout: 60 * 1000, transformRequest: [], transformResponse: [] }, config);
        // 请求头默认附加response 解析器
        if (!this.config.transformResponse) {
            this.config.transformResponse = [];
        }
        this.logger.log(LogLevel.Information, "set config success.");
    };
    /**
     * 请求参数序列化
     *
     * @param {RequestOptions} options
     * @memberof Request
     *
     * @description 只支持普通get请求,和content-type = json 的 其他请求(post,put,delete,patch)
     */
    Request.prototype.handleRequestOptions = function (options) {
        return __awaiter(this, void 0, void 0, function () {
            var _i, _a, fun, e_1;
            return __generator(this, function (_b) {
                switch (_b.label) {
                    case 0:
                        // 请求地址处理,对于非<scene>:// 请求,附加baseUrl
                        if (options.url && !/:\/\/.+?/.test(options.url)) {
                            options.url = ((options.config ? options.config.baseUrl : "") + "/" + options.url).replace(/([^:])(\/\/)/g, "$1/");
                        }
                        this.logger.log(LogLevel.Trace, "checked request url");
                        // https 处理
                        if (options.config && options.config.forceEnableHttps) {
                            options.url = options.url.replace(/http:/, "https:");
                            this.logger.log(LogLevel.Trace, "execute fix [request.config.forceEnableHttps] " + options.url);
                        }
                        // header 合并
                        options.headers = Object.assign({}, options.config ? options.config.headers : {}, options.headers);
                        this.logger.log(LogLevel.Trace, "merge headers ", options.headers);
                        // 移除微信封锁参数
                        delete options.headers["Referer"];
                        this.logger.log(LogLevel.Trace, "try delete headers Referer.");
                        // 替换请求内的ResponseType
                        options.responseType = options.responseType
                            ? options.responseType
                            : options.config
                                ? options.config.responseType
                                : ResponseType.TEXT;
                        this.logger.log(LogLevel.Trace, "checked responseType [" + options.responseType + "]");
                        if (!(options.config && options.config.transformRequest)) return [3 /*break*/, 6];
                        this.logger.log(LogLevel.Trace, "execute transform request list. -result\n", options.config);
                        _i = 0, _a = options.config.transformRequest;
                        _b.label = 1;
                    case 1:
                        if (!(_i < _a.length)) return [3 /*break*/, 6];
                        fun = _a[_i];
                        _b.label = 2;
                    case 2:
                        _b.trys.push([2, 4, , 5]);
                        return [4 /*yield*/, fun(options)];
                    case 3:
                        _b.sent();
                        return [3 /*break*/, 5];
                    case 4:
                        e_1 = _b.sent();
                        throw e_1;
                    case 5:
                        _i++;
                        return [3 /*break*/, 1];
                    case 6:
                        // debug print handled request options
                        this.logger.log(LogLevel.Debug, "handled request options \n", options);
                        return [2 /*return*/];
                }
            });
        });
    };
    /**
     * 验证响应结果,执行回调
     *
     * @param {*} resolve
     * @param {*} reject
     * @param {*} response
     * @memberof Request
     */
    Request.prototype.handleResponse = function (response) {
        return __awaiter(this, void 0, void 0, function () {
            var _i, _a, fun, res_1;
            return __generator(this, function (_b) {
                switch (_b.label) {
                    case 0:
                        if (!(response.options.config &&
                            response.options.config.responseType == "json" &&
                            response.options.config.transformResponse)) return [3 /*break*/, 6];
                        _i = 0, _a = response.options.config.transformResponse;
                        _b.label = 1;
                    case 1:
                        if (!(_i < _a.length)) return [3 /*break*/, 6];
                        fun = _a[_i];
                        _b.label = 2;
                    case 2:
                        _b.trys.push([2, 4, , 5]);
                        // handler response
                        return [4 /*yield*/, fun(response)];
                    case 3:
                        // handler response
                        _b.sent();
                        return [3 /*break*/, 5];
                    case 4:
                        res_1 = _b.sent();
                        this.logger.log(LogLevel.Trace, "execute transform request list. -result \n ", res_1);
                        throw res_1;
                    case 5:
                        _i++;
                        return [3 /*break*/, 1];
                    case 6:
                        // debug print handled response context
                        this.logger.log(LogLevel.Debug, "handled response context \n", response);
                        return [2 /*return*/, Promise.resolve(response)];
                }
            });
        });
    };
    /**
     * 执行请求
     *
     * @param {RequestOptions} [options={
     *       url: this.config.baseUrl
     *     }]
     * @returns {Promise<any>}
     * @memberof Request
     */
    Request.prototype.executeRequest = function (options) {
        var _this = this;
        return new Promise(function (resolve, reject) { return __awaiter(_this, void 0, void 0, function () {
            var error_1, task;
            var _this = this;
            return __generator(this, function (_a) {
                switch (_a.label) {
                    case 0:
                        this.logger.log(LogLevel.Trace, "execute request -options \n", options);
                        // 合并 baseConfig
                        options.config = options.config ? __assign(__assign({}, this.config), options.config) : __assign({}, this.config);
                        if (this.checkAbout(options.config, reject))
                            return [2 /*return*/];
                        _a.label = 1;
                    case 1:
                        _a.trys.push([1, 3, , 4]);
                        // 序列化请求参数
                        return [4 /*yield*/, this.handleRequestOptions(options)];
                    case 2:
                        // 序列化请求参数
                        _a.sent();
                        return [3 /*break*/, 4];
                    case 3:
                        error_1 = _a.sent();
                        // 抛出异常.
                        return [2 /*return*/, reject(__assign({ data: null, header: null, statusCode: -1, options: options }, error_1))];
                    case 4:
                        if (this.checkAbout(options.config, reject))
                            return [2 /*return*/];
                        // print fixed options
                        this.logger.log(LogLevel.Debug, "fixed options \n", options);
                        // execute request
                        this.logger.log(LogLevel.Trace, "invoke wx.request");
                        task = wx.request({
                            url: options.url,
                            data: options.data,
                            dataType: options.responseType,
                            header: options.headers,
                            method: options.method,
                            responseType: (function () {
                                switch (options.responseType) {
                                    case "json":
                                    case "text":
                                        return "text";
                                    case "arraybuffer":
                                        return "arraybuffer";
                                }
                            })(),
                            success: function (res) { return __awaiter(_this, void 0, void 0, function () {
                                var data, header, statusCode, errMsg, responseOptions;
                                var _this = this;
                                return __generator(this, function (_a) {
                                    if (this.checkAbout(options.config, reject))
                                        return [2 /*return*/];
                                    this.logger.log(LogLevel.Debug, "origin response context \n", res);
                                    data = res.data, header = res.header, statusCode = res.statusCode, errMsg = res.errMsg;
                                    responseOptions = {
                                        data: data,
                                        header: header,
                                        statusCode: statusCode,
                                        options: options,
                                        errMsg: errMsg
                                    };
                                    // 调用响应处理链(并返回结果)
                                    this.handleResponse(responseOptions)
                                        .then(function (res) {
                                        // print debug
                                        _this.logger.log(LogLevel.Debug, "handle response context is success. \n", res);
                                        /**
                                         * check and cache cookie (if has) |
                                         * @description 这里因为 signalR的原因,内置了一个 cookies.js [library](https://github.com/jshttp/cookie/index.js)
                                         * 略有改写,暂时将cookie 扔到内存中维护(毕竟就signalr使用,不考虑扔到 localStore 中占地方).
                                         */
                                        if (options.config.cookie)
                                            options.config.cookie.set(options.url, header);
                                        // callback
                                        resolve(res);
                                    })
                                        .catch(function (res) {
                                        // print log
                                        _this.logger.log(LogLevel.Error, "handle response context is fail. \n ", res);
                                        // ! 这里为了兼容 signalR的错误格式,抛出继承了HttpError异常.
                                        var httpError = new HttpError(res.errMsg, res.statusCode);
                                        // callback  - 合并后,返回,可以被认定为 继承 HttpError对象.
                                        reject(__assign(__assign({}, res), httpError));
                                    });
                                    return [2 /*return*/];
                                });
                            }); },
                            fail: function (res) {
                                var responseOptions = null;
                                if (res && /request:fail socket time out timeout/.test(res.errMsg)) {
                                    // ! 这里为了兼容 signalR的错误格式,抛出继承了TimeoutError异常.
                                    responseOptions = __assign({ data: null, status: -1, errMsg: res.errMsg }, new TimeoutError(res.errMsg));
                                }
                                else {
                                    // ! 这里为了兼容 signalR的错误格式,抛出继承了HttpError异常.
                                    responseOptions = __assign({ data: null, status: -1, errMsg: res.errMsg }, new HttpError(res.errMsg, 500));
                                }
                                /**
                                 *  @date 2019年12月11日 13:14:25
                                 * ! 修复bug,wx.request fail 情况下, 未调用 response 处理链.
                                 */
                                // 调用响应处理链(并返回结果)
                                _this.handleResponse(responseOptions)
                                    .then(function (res) {
                                    // print debug
                                    _this.logger.log(LogLevel.Debug, "handle response context is success. \n", res);
                                    /**
                                     * check and cache cookie (if has) |
                                     * @description 这里因为 signalR的原因,内置了一个 cookies.js [library](https://github.com/jshttp/cookie/index.js)
                                     * 略有改写,暂时将cookie 扔到内存中维护(毕竟就signalr使用,不考虑扔到 localStore 中占地方).
                                     */
                                    if (options.config.cookie)
                                        options.config.cookie.set(options.url, {});
                                    // callback
                                    resolve(res);
                                })
                                    .catch(function (res) {
                                    // print log
                                    _this.logger.log(LogLevel.Error, "handle response context is fail. \n ", res);
                                    // ! 这里为了兼容 signalR的错误格式,抛出继承了HttpError异常.
                                    var httpError = new HttpError(res.errMsg, res.statusCode);
                                    // callback  - 合并后,返回,可以被认定为 继承 HttpError对象.
                                    reject(__assign(__assign({}, res), httpError));
                                });
                            }
                        });
                        // 监听 headers 变化
                        task.onHeadersReceived(function () {
                            // 当检查到 about() 状态,中断请求
                            if (_this.checkAbout(options.config, reject)) {
                                // 中断请求
                                task.abort();
                                return;
                            }
                        });
                        return [2 /*return*/];
                }
            });
        }); });
    };
    /**
     * 检查中断
     *
     * @memberof Request
     */
    Request.prototype.checkAbout = function (options, reject) {
        if (options.config && options.config.about) {
            reject({
                data: null,
                header: options.headers,
                statusCode: 412,
                options: options,
                errMsg: "网络异常" // 直接自定义错误了.
            });
            return true;
        }
        else {
            return false;
        }
    };
    /**
     * GET 请求
     * @description 封装调用
     * @param url 请求地址
     * @param data 请求参数
     * @param options 请求配置
     */
    Request.prototype.get = function (url, data, options) {
        if (data === void 0) { data = {}; }
        // print execute step
        this.logger.log(LogLevel.Trace, "invoke request.get()");
        // merge config
        var requestOptions = __assign(__assign({}, (function () { return (options ? options : {}); })()), { method: RequestMethod.GET, url: url,
            data: data });
        // execute and response
        return this.executeRequest(requestOptions);
    };
    /**
     * POST 请求
     * @description 封装调用
     * @param url 请求地址
     * @param data 请求参数
     * @param options 请求配置
     */
    Request.prototype.post = function (url, data, options) {
        if (data === void 0) { data = {}; }
        // print execute step
        this.logger.log(LogLevel.Trace, "invoke request.post()");
        // merge config
        var requestOptions = __assign(__assign({}, (function () { return (options ? options : {}); })()), { method: RequestMethod.POST, url: url,
            data: data });
        // execute and response
        return this.executeRequest(requestOptions);
    };
    /**
     * PUT 请求
     * @description 封装调用
     * @param url 请求地址
     * @param data 请求参数
     * @param options 请求配置
     */
    Request.prototype.put = function (url, data, options) {
        if (data === void 0) { data = {}; }
        // print execute step
        this.logger.log(LogLevel.Trace, "invoke request.put()");
        // merge config
        var requestOptions = __assign(__assign({}, (function () { return (options ? options : {}); })()), { method: RequestMethod.PUT, url: url,
            data: data });
        // execute and response
        return this.executeRequest(requestOptions);
    };
    /**
     * DELETE 请求
     * @description 封装调用
     * @param url 请求地址
     * @param data 请求参数
     * @param options 请求配置
     */
    Request.prototype.delete = function (url, data, options) {
        if (data === void 0) { data = {}; }
        // print execute step
        this.logger.log(LogLevel.Trace, "invoke request.delete()");
        // merge config
        var requestOptions = __assign(__assign({}, (function () { return (options ? options : {}); })()), { method: RequestMethod.DELETE, url: url,
            data: data });
        // execute and response
        return this.executeRequest(requestOptions);
    };
    /**
     * 多请求同步执行
     * @param taskQueue
     */
    Request.prototype.all = function (taskQueue) {
        // print execute step
        this.logger.log(LogLevel.Trace, "invoke request.all()");
        // merge config
        return Promise.all(taskQueue);
    };
    /**
     * 用于兼容 @aspnet/signalR 的 获取 cookie 方法
     *
     * @description 这里用内存对象来维护一个 在线 cookies
     * @param {string} url
     * @returns
     * @memberof Request
     */
    Request.prototype.getCookieString = function (url) {
        if (this.config && this.config.cookie) {
            return this.config.cookie.origin(url);
        }
        else {
            return "";
        }
    };
    Request.prototype.cookie = function (url, key) {
        if (this.config && this.config.cookie) {
            return this.config.cookie.get(url, key);
        }
        else {
            return "";
        }
    };
    return Request;
}());
export { Request };