import params from "../parameters"; //for server URL
+import { store } from "../store"; //for translations
// TODO: replace by fetch API ?
// https://www.sitepoint.com/xmlhttprequest-vs-the-fetch-api-whats-best-for-ajax-in-2019/
-// Problem: fetch() does not set req.xhr... see access/ajax() security especially for /whoami
// From JSON (encoded string values!) to "arg1=...&arg2=..."
-function toQueryString(data)
-{
+function toQueryString(data) {
let data_str = "";
Object.keys(data).forEach(k => {
data_str += k + "=" + encodeURIComponent(data[k]) + "&";
}
// data, error: optional
-export function ajax(url, method, data, success, error)
-{
+export function ajax(url, method, data, success, error) {
let xhr = new XMLHttpRequest();
- if (data === undefined || typeof(data) === "function") //no data
- {
+ if (data === undefined || typeof data === "function") {
+ //no data
error = success;
success = data;
data = {};
}
- if (!success)
- success = () => {}; //by default, do nothing
+ if (!success) success = () => {}; //by default, do nothing
if (!error)
- error = errmsg => { alert(errmsg); };
+ error = errmsg => {
+ alert(store.state.tr[errmsg] || errmsg);
+ };
xhr.onreadystatechange = function() {
- if (this.readyState == 4 && this.status == 200)
- {
+ if (this.readyState == 4 && this.status == 200) {
let res_json = "";
try {
res_json = JSON.parse(xhr.responseText);
} catch (e) {
- // Plain text (e.g. for rules retrieval)
- return success(xhr.responseText);
+ // Plain text (e.g. for rules retrieval) (TODO: no more plain text in current version)
+ success(xhr.responseText);
}
- if (!res_json.errmsg && !res_json.errno)
- success(res_json);
- else
- {
- if (!!res_json.errmsg)
- error(res_json.errmsg);
- else
- error(res_json.code + ". errno = " + res_json.errno);
+ if (res_json) {
+ if (!res_json.errmsg && !res_json.errno) success(res_json);
+ else {
+ if (res_json.errmsg) error(res_json.errmsg);
+ else error(res_json.code + ". errno = " + res_json.errno);
+ }
}
}
};
- if (["GET","DELETE"].includes(method) && !!data)
- {
+ if (["GET", "DELETE"].includes(method) && !!data) {
// Append query params to URL
url += "/?" + toQueryString(data);
}
xhr.open(method, params.serverUrl + url, true);
- xhr.setRequestHeader('X-Requested-With', "XMLHttpRequest");
+ xhr.setRequestHeader("X-Requested-With", "XMLHttpRequest");
// Next line to allow cross-domain cookies in dev mode
- if (params.cors)
- xhr.withCredentials = true;
- if (["POST","PUT"].includes(method))
- {
+ if (params.cors) xhr.withCredentials = true;
+ if (["POST", "PUT"].includes(method)) {
xhr.setRequestHeader("Content-Type", "application/json;charset=UTF-8");
xhr.send(JSON.stringify(data));
- }
- else
- xhr.send();
+ } else xhr.send();
}