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https://github.com/pi-hole/web.git
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108 lines
3.2 KiB
JavaScript
108 lines
3.2 KiB
JavaScript
/* Pi-hole: A black hole for Internet advertisements
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* (c) 2017 Pi-hole, LLC (https://pi-hole.net)
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* Network-wide ad blocking via your own hardware.
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*
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* This file is copyright under the latest version of the EUPL.
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* Please see LICENSE file for your rights under this license. */
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/* global apiUrl: false */
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function eventsource() {
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var alInfo = $("#alInfo");
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var alSuccess = $("#alSuccess");
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var ta = $("#output");
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// https://caniuse.com/fetch - everything except IE
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// This is fine, as we dropped support for IE a while ago
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if (typeof fetch !== "function") {
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ta.show();
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ta.html("Updating lists of ad-serving domains is not supported with this browser!");
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return;
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}
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ta.html("");
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ta.show();
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alInfo.show();
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alSuccess.hide();
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// eslint-disable-next-line compat/compat
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fetch(apiUrl + "/action/gravity", {
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method: "POST",
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headers: { "X-CSRF-TOKEN": $('meta[name="csrf-token"]').attr("content") },
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})
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// Retrieve its body as ReadableStream
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.then(response => {
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const reader = response.body.getReader();
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return new ReadableStream({
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start(controller) {
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return pump();
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function pump() {
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return reader.read().then(({ done, value }) => {
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// When no more data needs to be consumed, close the stream
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if (done) {
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controller.close();
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alInfo.hide();
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$("#gravityBtn").prop("disabled", false);
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return;
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}
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// Enqueue the next data chunk into our target stream
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controller.enqueue(value);
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var string = new TextDecoder().decode(value);
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parseLines(ta, string);
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if (string.indexOf("Done.") !== -1) {
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alSuccess.show();
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}
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return pump();
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});
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}
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},
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});
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})
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.catch(error => console.error(error)); // eslint-disable-line no-console
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}
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$("#gravityBtn").on("click", function () {
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$("#gravityBtn").prop("disabled", true);
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eventsource();
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});
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// Handle hiding of alerts
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$(function () {
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$("[data-hide]").on("click", function () {
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$(this)
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.closest("." + $(this).attr("data-hide"))
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.hide();
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});
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// Do we want to start updating immediately?
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// gravity.lp?go
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var searchString = globalThis.location.search.substring(1);
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if (searchString.indexOf("go") !== -1) {
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$("#gravityBtn").prop("disabled", true);
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eventsource();
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}
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});
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function parseLines(ta, str) {
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// str can contain multiple lines.
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// We want to split the text before an "OVER" escape sequence to allow overwriting previous line when needed
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// Splitting the text on "\r"
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var lines = str.split(/(?=\r)/g);
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for (let i = 0; i < lines.length; i++) {
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if (lines[i][0] === "\r") {
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// This line starts with the "OVER" sequence. Replace them with "\n" before print
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lines[i] = lines[i].replaceAll("\r[K", "\n").replaceAll("\r", "\n");
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// Last line from the textarea will be overwritten, so we remove it
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ta.text(ta.text().substring(0, ta.text().lastIndexOf("\n")));
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}
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// Append the new text to the end of the output
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ta.append(lines[i]);
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}
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}
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