114 lines
2.8 KiB
JavaScript
114 lines
2.8 KiB
JavaScript
class MessagingService {
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async GetHyperlinkNodes(sender, callback) {
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const a = this;
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const nodes = await document.querySelectorAll("a");
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let result = [];
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for (let i=0; i<nodes.length; i++) {
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result.push({
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innerText: nodes[i].innerText ?? "",
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innerHTML: a.#encodeHtml(nodes[i].innerHTML),
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href: (nodes[i].getAttribute("href") ?? "").trim(),
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title: (nodes[i].getAttribute("title") ?? "").trim(),
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target: nodes[i].getAttribute("target") ?? "",
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rel: nodes[i].getAttribute("rel") ?? "",
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type: nodes[i].getAttribute("type") ?? "",
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occurrence: 1
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});
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}
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await callback(result);
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}
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async GetImageNodes(sender, callback) {
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const a = this;
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const nodes = await document.querySelectorAll("img");
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let result = [];
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for (let i=0; i<nodes.length; i++) {
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result.push({
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src: (nodes[i].getAttribute("src") ?? ""),
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alt: (nodes[i].getAttribute("alt") ?? ""),
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srcset: nodes[i].getAttribute("srcset") ?? "",
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usemap: nodes[i].getAttribute("usemap") ?? "",
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width: nodes[i].getAttribute("width") ?? "",
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height: nodes[i].getAttribute("height") ?? "",
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occurrence: 1
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});
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}
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await callback(result);
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}
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async GetLocation(sender, callback) {
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callback(document.location.href);
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}
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async GetMetaNodes(sender, callback) {
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const a = this;
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const nodes = await document.querySelectorAll("meta");
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let result = [];
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for (let i=0; i<nodes.length; i++) {
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result.push({
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content: (nodes[i].getAttribute("content") ?? ""),
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name: (nodes[i].getAttribute("name") ?? ""),
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httpEquiv: (nodes[i].getAttribute("http-equiv") ?? ""),
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occurrence: 1
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});
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}
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await callback(result);
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}
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async GetScriptNodes(sender, callback) {
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const a = this;
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const nodes = await document.querySelectorAll("script");
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let result = [];
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for (let i=0; i<nodes.length; i++) {
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result.push({
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src: (nodes[i].getAttribute("src") ?? ""),
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type: (nodes[i].getAttribute("type") ?? ""),
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occurrence: 1
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});
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}
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await callback(result);
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}
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#encodeHtml(htmlContent) {
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const map = {
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"&": "&",
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"<": "<",
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">": ">",
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'"': """,
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"'": "'",
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};
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let result = (htmlContent ?? "").replace("\r", "").replace("\n", "\\n").replace("\t", "\\t");
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result = result.replace(/[&<>"']/g, (char) => map[char]);
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return result;
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}
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}
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const messageService = new MessagingService();
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chrome.runtime.onMessage.addListener(async function(request, sender, callback) {
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if (typeof(messageService[request.event]) == "undefined") {
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return;
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}
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await messageService[request.event](sender, callback);
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}); |