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77 lines
2.6 KiB
JavaScript
77 lines
2.6 KiB
JavaScript
const checkForTracking = () => {
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const mainDiv = document.getElementById("main");
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const searchBar = document.getElementById("search-bar");
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// some pages (e.g. images) do not have these
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if (!mainDiv || !searchBar)
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return;
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const query = searchBar.value.replace(/\s+/g, '');
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// Note: regex functions for checking for tracking queries were derived
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// from here -- https://stackoverflow.com/questions/619977
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const matchTracking = {
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"ups": {
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"link": `https://www.ups.com/track?tracknum=${query}`,
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"expr": [
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/\b(1Z ?[0-9A-Z]{3} ?[0-9A-Z]{3} ?[0-9A-Z]{2} ?[0-9A-Z]{4} ?[0-9A-Z]{3} ?[0-9A-Z]|[\dT]\d\d\d ?\d\d\d\d ?\d\d\d)\b/
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]
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},
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"usps": {
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"link": `https://tools.usps.com/go/TrackConfirmAction?tLabels=${query}`,
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"expr": [
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/(\b\d{30}\b)|(\b91\d+\b)|(\b\d{20}\b)/,
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/^E\D{1}\d{9}\D{2}$|^9\d{15,21}$/,
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/^91[0-9]+$/,
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/^[A-Za-z]{2}[0-9]+US$/
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]
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},
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"fedex": {
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"link": `https://www.fedex.com/apps/fedextrack/?tracknumbers=${query}`,
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"expr": [
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/(\b96\d{20}\b)|(\b\d{15}\b)|(\b\d{12}\b)/,
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/\b((98\d\d\d\d\d?\d\d\d\d|98\d\d) ?\d\d\d\d ?\d\d\d\d( ?\d\d\d)?)\b/,
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/^[0-9]{15}$/
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]
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}
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};
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// Creates a link to a UPS/USPS/FedEx tracking page
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const createTrackingLink = href => {
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let link = document.createElement("a");
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link.className = "tracking-link";
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link.innerHTML = "View Tracking Info";
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link.href = href;
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mainDiv.prepend(link);
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};
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// Compares the query against a set of regex patterns
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// for tracking numbers
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const compareQuery = provider => {
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provider.expr.some(regex => {
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if (query.match(regex)) {
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createTrackingLink(provider.link);
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return true;
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}
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});
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};
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for (const key of Object.keys(matchTracking)) {
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compareQuery(matchTracking[key]);
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}
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};
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document.addEventListener("DOMContentLoaded", function() {
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checkForTracking();
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// Clear input if reset button tapped
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const searchBar = document.getElementById("search-bar");
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const resetBtn = document.getElementById("search-reset");
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// some pages (e.g. images) do not have these
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if (!searchBar || !resetBtn)
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return;
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resetBtn.addEventListener("click", event => {
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event.preventDefault();
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searchBar.value = "";
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searchBar.focus();
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});
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});
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