99 lines
3.5 KiB
JavaScript
99 lines
3.5 KiB
JavaScript
function parsePage() {
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let entry = {
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url: window.location.href,
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title: "",
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publishedDate: ""
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};
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// fix the URL's of certain websites
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if (entry.url.startsWith('https://freedium.cfd/')) { // extract original article link from freedium url
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entry.url = entry.url.replace('https://freedium.cfd/', '');
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}
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// if schema.org JSON-LD is present, read that data
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const jsonLDElem = document.querySelector('script[type="application/ld+json"]');
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if (jsonLDElem) {
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const jsonLDObj = JSON.parse(jsonLDElem.textContent);
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if (jsonLDObj['@type'] == 'NewsArticle') {
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entry.publishedDate = jsonLDObj.datePublished?.slice(0, 19) ?? "";
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entry.author = jsonLDObj.author?.name ?? ""
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entry.title = jsonLDObj.headline ?? ""
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}
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}
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return entry;
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}
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// thanks stack overflow: https://stackoverflow.com/questions/12413243/javascript-date-format-like-iso-but-local
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function dateToISOLikeButLocal(date) {
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const offsetMs = date.getTimezoneOffset() * 60 * 1000;
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const msLocal = date.getTime() - offsetMs;
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const dateLocal = new Date(msLocal);
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const iso = dateLocal.toISOString();
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const isoLocal = iso.slice(0, 19);
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return isoLocal;
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}
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function fillForm(entry) {
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const curDate = new Date();
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document.getElementById('url').value = entry.url;
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document.getElementById('title').value = entry.title ?? "";
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document.getElementById('author').value = entry.author ?? "";
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document.getElementById('publishedDate').value = entry.publishedDate ?? "";
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document.getElementById('accessedDate').value = dateToISOLikeButLocal(curDate);
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}
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function runContentScript(tabId) {
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chrome.scripting.executeScript({
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target: { tabId: tabId},
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func: parsePage,
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}).then((injectionResults) => {
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fillForm(injectionResults[0].result);
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});
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}
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function generateJSON(event) {
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event.preventDefault();
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const urlField = document.getElementById('url');
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const titleField = document.getElementById('title');
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const authorField = document.getElementById('author');
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const publishedDateField = document.getElementById('publishedDate');
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const accessedDateField = document.getElementById('accessedDate');
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const noteField = document.getElementById('note');
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const errorElem = document.getElementById('error');
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const JSONElem = document.getElementById('generated');
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// first, make sure all of our required fields are in place
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if ((urlField.value == null || urlField.value == "") ||
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(titleField.value == null || titleField.value == "") ||
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(accessedDateField.value == null || accessedDateField.value == "") ||
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(noteField.value == null || noteField.value == "")) {
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errorElem.textContent = "ERROR: Missing required field."
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return;
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}
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errorElem.textContent = ""
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JSONElem.value = `{
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"url": "${urlField.value}",
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"title": "${titleField.value}",
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"author": "${authorField.value}",
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"publishedDate": "${publishedDateField.value.replace('T', ' ')}",
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"accessedDate": "${accessedDateField.value.replace('T', ' ')}",
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"note": "${noteField.value}",\n},`
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}
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window.addEventListener('DOMContentLoaded', () => {
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chrome.tabs.query({
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active: true,
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currentWindow: true
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}, tabs => {
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runContentScript(tabs[0].id);
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});
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const form = document.getElementById('sharefeed')
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form.addEventListener('submit', generateJSON);
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});
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