feat: Remove VueJS and rewrite in vanilla JS
Karan Sharma
parent
022c1267b7
commit
d985ecd1b4
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@ -1,38 +1,82 @@
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var app = new Vue({
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el: '#app',
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data: {
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apiURL: "/api/lookup/",
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results: [],
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noRecordsFound: false,
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emptyNameError: false,
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apiErrorMessage: "",
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queryName: "",
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queryType: "A",
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nameserverName: "cloudflare",
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customNSAddr: "",
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nsAddrMap: {
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const $ = document.querySelector.bind(document);
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const $new = document.createElement.bind(document);
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const apiURL = "/api/lookup/";
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const isMobile = window.matchMedia("only screen and (max-width: 760px)").matches;
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const nsAddrMap = {
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"google": "8.8.8.8",
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"cloudflare": "1.1.1.1",
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"cloudflare-doh": "https://cloudflare-dns.com/dns-query",
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"quad9": "9.9.9.9",
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}
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function handleNSChange() {
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if ($('select[name=ns]').value == "custom") {
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$('div[id=custom_ns]').classList.remove("hidden");
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$('div[id=ns]').classList.add("hidden");
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} else {
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$('div[id=custom_ns]').classList.add("hidden");
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$('div[id=ns]').classList.remove("hidden");
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$('input[name=ns]').placeholder = nsAddrMap[$('select[name=ns]').value];
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}
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},
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created: function () {
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},
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computed: {
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getNSAddrValue() {
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return this.nsAddrMap[this.nameserverName]
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},
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isCustomNS() {
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if (this.nameserverName == "custom") {
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return true
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}
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// Source: https://stackoverflow.com/a/1026087.
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function capitalizeFirstLetter(string) {
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return string.charAt(0).toUpperCase() + string.slice(1);
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}
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window.addEventListener('DOMContentLoaded', (event) => {
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handleNSChange();
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});
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(function () {
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const fields = ['name', 'address', 'type', 'ttl', 'rtt', 'nameserver'];
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// createRow creates a table row with the given cell values.
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function createRow(item) {
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const tr = $new('tr');
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fields.forEach((f) => {
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const td = $new('td');
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td.classList.add("px-6", "py-4", "whitespace-nowrap", "text-sm");
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if (f == "ttl" || f == "rtt" || f == "nameserver") {
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td.classList.add("text-gray-500");
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} else {
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td.classList.add("text-gray-900");
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}
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return false
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if (f == "name") {
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td.classList.add("font-semibold");
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}
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},
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methods: {
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prepareNS() {
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switch (this.nameserverName) {
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if (f == "type") {
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td.innerHTML = '<span class="px-2 inline-flex text-xs leading-5 font-semibold rounded-full bg-green-100 text-green-800">' + item[f] + '</span>';
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} else {
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td.innerText = item[f];
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}
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tr.appendChild(td);
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});
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return tr;
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}
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// createList creates a table row with the given cell values.
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function createList(item) {
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const ul = $new('ul');
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ul.classList.add("m-4", "block", "bg-indigo-100");
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fields.forEach((f) => {
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const li = $new('li');
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const span = $new('span');
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span.classList.add("p-2", "text-gray-500", "font-semibold");
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span.innerText = capitalizeFirstLetter(f) + ': ' + item[f]
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li.appendChild(span);
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ul.appendChild(li);
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});
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return ul;
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}
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function prepareNSAddr(ns) {
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switch (ns) {
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case "google":
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return "tcp://8.8.8.8:53"
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case "cloudflare":
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@ -42,54 +86,82 @@ var app = new Vue({
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case "quad9":
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return "tcp://9.9.9.9:53"
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case "custom":
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return this.customNSAddr
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return $('input[name=custom_ns]').value.trim()
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default:
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return ""
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}
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},
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lookupRecords() {
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// reset variables.
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this.results = []
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this.noRecordsFound = false
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this.emptyNameError = false
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this.apiErrorMessage = ""
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if (this.queryName == "") {
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this.emptyNameError = true
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return
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}
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// GET request using fetch with error handling
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fetch(this.apiURL, {
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const postForm = body => {
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return fetch(apiURL, {
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method: 'POST',
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headers: {
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'Content-Type': 'application/json'
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},
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body: JSON.stringify({
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query: [this.queryName,],
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type: [this.queryType,],
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nameservers: [this.prepareNS(),],
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}),
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}).then(async response => {
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const res = await response.json();
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body
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});
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};
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// check for error response
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if (!response.ok) {
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const handleSubmit = async (e) => {
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e.preventDefault();
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const tbl = $('table tbody');
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const list = $('div[id=mobile-answers-sec]');
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tbl.innerHTML = '';
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list.innerHTML = '';
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$('p[id=empty-name-sec]').classList.add("hidden");
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const errSec = $('div[id=api-error-sec]');
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errSec.classList.add("hidden");
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const q = $('input[name=q]').value.trim(), typ = $('select[name=type]').value;
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const ns = $('select[name=ns]').value;
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if (!q) {
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$('p[id=empty-name-sec]').classList.remove("hidden");
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throw ('Invalid query name.');
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}
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if (!q || !typ || !ns) {
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throw ('Invalid or empty query params.');
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}
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const nsAddr = prepareNSAddr(ns);
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const body = JSON.stringify({ query: [q,], type: [typ,], nameservers: [nsAddr,] });
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const response = await postForm(body);
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const res = await response.json();
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if (res.status != "success") {
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// get error message from body or default to response statusText
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const error = (res && res.message) || response.statusText;
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return Promise.reject(error);
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errSec.classList.remove("hidden");
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errSec.innerHTML = '<p class="text-xl text-red-500">' + error + '</p>'
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throw (error);
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}
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if (res.data[0].answers == null) {
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this.noRecordsFound = true
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} else {
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// Set the answers in the results list.
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this.results = res.data[0].answers
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const errSec = $('div[id=api-error-sec]');
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errSec.classList.remove("hidden");
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errSec.innerHTML = '<p class="text-xl text-red-500">' + 'No records found!' + '</p>'
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return null;
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}
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}).catch(error => {
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this.apiErrorMessage = error
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$('div[id=answer_sec]').classList.remove("hidden");
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if (isMobile === true) {
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list.classList.remove("hidden");
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res.data[0].answers.forEach((item) => {
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console.log("appending", item)
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list.appendChild(createList(item));
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});
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} else {
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res.data[0].answers.forEach((item) => {
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tbl.appendChild(createRow(item));
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});
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}
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}
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})
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};
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document.querySelector('form').addEventListener('submit', handleSubmit);
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})();
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@ -70,7 +70,7 @@ func handleLookup(w http.ResponseWriter, r *http.Request) {
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err = app.LoadNameservers()
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if err != nil {
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app.Logger.WithError(err).Error("error loading nameservers")
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sendErrorResponse(w, fmt.Sprintf("Error lookuping up for records."), http.StatusInternalServerError, nil)
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sendErrorResponse(w, fmt.Sprintf("Error looking up for records."), http.StatusInternalServerError, nil)
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return
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}
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@ -86,7 +86,7 @@ func handleLookup(w http.ResponseWriter, r *http.Request) {
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})
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if err != nil {
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app.Logger.WithError(err).Error("error loading resolver")
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sendErrorResponse(w, fmt.Sprintf("Error lookuping up for records."), http.StatusInternalServerError, nil)
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sendErrorResponse(w, fmt.Sprintf("Error looking up for records."), http.StatusInternalServerError, nil)
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return
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}
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app.Resolvers = rslvrs
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@ -97,7 +97,7 @@ func handleLookup(w http.ResponseWriter, r *http.Request) {
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resp, err := rslv.Lookup(q)
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if err != nil {
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app.Logger.WithError(err).Error("error looking up DNS records")
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sendErrorResponse(w, fmt.Sprintf("Error lookuping up for records."), http.StatusInternalServerError, nil)
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sendErrorResponse(w, fmt.Sprintf("Error looking up for records."), http.StatusInternalServerError, nil)
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return
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}
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responses = append(responses, resp)
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@ -10,17 +10,8 @@
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<link rel="preconnect" href="https://fonts.gstatic.com">
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<link href="https://fonts.googleapis.com/css2?family=Poppins:wght@400;600;700&display=swap" rel="stylesheet">
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<script src="https://cdn.jsdelivr.net/npm/vue@2.6.12"></script>
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<style>
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[v-cloak]>* {
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display: none;
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}
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/* [v-cloak]::before {
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content: "loading...";
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} */
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body {
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font-family: 'Poppins', sans-serif;
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}
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@ -39,18 +30,18 @@
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<header class="mt-10">
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<h1 class="text-5xl font-black text-center"><span class="text-indigo-700">Doggo</span> DNS</h1>
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</header>
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<main id="app" v-cloak class="main flex flex-col flex-grow">
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<form @submit.prevent="lookupRecords">
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<main id="app" class="main flex flex-col flex-grow">
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<form>
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<div class="bg-white shadow-md rounded px-8 pt-6 pb-8 mb-4 flex flex-col my-2">
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<div class="-mx-3 md:flex mb-6">
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<div class="md:w-1/2 px-3 mb-6 md:mb-0">
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<label class="block tracking-wide text-grey-darker text-xs font-bold mb-2">
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Domain Name
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</label>
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<input v-model="queryName"
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<input name="q"
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class="appearance-none block w-full bg-grey-lighter text-grey-darker border border-red rounded py-3 px-4 mb-3"
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type="text" placeholder="domain.tld">
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<p v-if="emptyNameError" class="text-red-500 text-xs">Please enter a domain name to
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<p id="empty-name-sec" class="hidden text-red-500 text-xs">Please enter a domain name to
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query.
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</p>
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</div>
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@ -60,8 +51,8 @@
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</label>
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<select
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class="block appearance-none w-full bg-grey-lighter border border-grey-lighter text-grey-darker py-3 px-4 pr-8 rounded"
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v-model="queryType">
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<option>A</option>
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name="type">
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<option default>A</option>
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<option>AAAA</option>
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<option>CAA</option>
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<option>CNAME</option>
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@ -77,13 +68,13 @@
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</div>
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<div class="-mx-3 md:flex">
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<div class="md:w-1/2 px-3 mb-6 md:mb-0">
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<label class="block tracking-wide text-grey-darker text-xs font-bold mb-2" for="grid-state">
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<label class="block tracking-wide text-grey-darker text-xs font-bold mb-2">
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Nameserver
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</label>
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<select v-model="nameserverName"
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<select name="ns"
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class="block appearance-none w-full bg-grey-lighter border border-grey-lighter text-grey-darker py-3 px-4 pr-8 rounded"
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id="grid-state">
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<option value="cloudflare">Cloudflare</option>
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onchange="handleNSChange()">>
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<option default value="cloudflare">Cloudflare</option>
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<option value="cloudflare-doh">Cloudflare (DOH)</option>
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<option value="google">Google</option>
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<option value="quad9">Quad9</option>
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@ -94,30 +85,29 @@
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<label class="block tracking-wide text-grey-darker text-xs font-bold mb-2" for="grid-zip">
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Address
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</label>
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<div v-if="isCustomNS">
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<input v-model="customNSAddr" class="appearance-none block w-full bg-grey-lighter text-grey-darker border
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border-grey-lighter rounded py-3 px-4" id="grid-zip" type="text"
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placeholder="Enter Nameserver address">
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<div id="custom_ns" class="hidden">
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<input name="custom_ns" class="appearance-none block w-full bg-grey-lighter text-grey-darker border
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border-grey-lighter rounded py-3 px-4" type="text" placeholder="Enter Nameserver address">
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<p class="mt-2 text-grey-darker text-xs">To use different protocols like DOH, DOT etc. refer
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to the
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instructions <a class="font-semibold"
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href="https://github.com/mr-karan/doggo#transport-options">here</a>.</p>
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</div>
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<div v-else>
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<input readonly
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<div id="ns">
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<input readonly name="ns"
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class="appearance-none block w-full bg-grey-lighter text-grey-darker border border-grey-lighter rounded py-3 px-4"
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id="grid-zip" type="text" :placeholder="getNSAddrValue">
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type="text">
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</div>
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</div>
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</div>
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<div class="mt-8 text-right">
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<button type="submit" class="py-2 px-10 text-white rounded-xl bg-indigo-800">Submit</button>
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<button class="py-2 px-10 text-white rounded-xl bg-indigo-800">Submit</button>
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</div>
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</div>
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</form>
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<!--Responses-->
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<div v-if="Object.keys(results).length > 0" class="mt-12 flex flex-col">
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<div id="answer_sec" class="hidden mt-12 flex flex-col">
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<div class="-my-2 overflow-x-auto sm:-mx-6 lg:-mx-8 sm:block hidden">
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<div class="py-2 align-middle inline-block min-w-full sm:px-6 lg:px-8">
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<div class="shadow overflow-hidden border-b border-gray-200 sm:rounded-lg">
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@ -151,55 +141,24 @@
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</tr>
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</thead>
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<tbody class="bg-white divide-y divide-gray-200">
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<tr v-for="answer in results">
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<td class="px-6 py-4 whitespace-nowrap text-sm text-gray-900 font-medium">
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{{answer.name}}
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</td>
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<td class="px-6 py-4 whitespace-nowrap text-sm text-gray-900">
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{{answer.address}}
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</td>
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<td class="px-6 py-4 whitespace-nowrap">
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<span
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class="px-2 inline-flex text-xs leading-5 font-semibold rounded-full bg-green-100 text-green-800">
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{{answer.type}}
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</span>
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</td>
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<td class="px-6 py-4 whitespace-nowrap text-sm text-gray-500">
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{{answer.ttl}}
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</td>
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<td class="px-6 py-4 whitespace-nowrap text-sm text-gray-500">
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{{answer.rtt}}
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</td>
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<td class="px-6 py-4 whitespace-nowrap text-sm text-gray-500">
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{{answer.nameserver}}
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</td>
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</tr>
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<!--tr is added by JS-->
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</tbody>
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</table>
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</div>
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</div>
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</div>
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<!--On Mobile-->
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<ul v-for="answer in results" class="m-4 sm:hidden block bg-indigo-100">
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<li><span class="p-2 text-gray-500 font-semibold">Name:</span> {{answer.name}}</li>
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<li><span class="p-2 text-gray-500 font-semibold">Address:</span> {{answer.address}}</li>
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<li><span class="p-2 text-gray-500 font-semibold">Type:</span> {{answer.type}}</li>
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<li><span class="p-2 text-gray-500 font-semibold">Nameserver:</span> {{answer.nameserver}}</li>
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<li><span class="p-2 text-gray-500 font-semibold">TTL:</span> {{answer.ttl}}</li>
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<li><span class="p-2 text-gray-500 font-semibold">RTT:</span> {{answer.rtt}}</li>
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</ul>
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<div id="mobile-answers-sec" class="hidden">
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</div>
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</div>
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<!--No Answers-->
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<div v-if="noRecordsFound" class="mt-12 text-center">
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<div id="no-answers-sec" class="hidden mt-12 text-center">
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<p class="text-xl text-gray-900">Oops! Found no records for this query.</p>
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</div>
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<!--Show Error-->
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<div v-if="apiErrorMessage" class="mt-12 text-center">
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<p class="text-xl text-red-500">{{apiErrorMessage}}</p>
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<div id="api-error-sec" class="hidden mt-12 text-center">
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</div>
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</main>
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