389 lines
13 KiB
JavaScript
389 lines
13 KiB
JavaScript
// JSON based simple full text search with vanilla javascript via XMLHttpRequest,
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// (c) 2020 by Tanja Becker - Webdeveleopment, http://tanjabecker.de/
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// pass query string by CGI parameter: [URL]?query=[search string]
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var query = new URLSearchParams(window.location.search).get("query");
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if ((query != '') && (query != null)) {
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document.getElementById("custom-search-field").value = query;
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}
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// Debug mode: shows number of hits in the search result. [URL]?debug=1
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let debug = new URLSearchParams(window.location.search).get("debug");
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let merge_data = [];
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window.addEventListener('load', function() {
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document.getElementById("custom-search").querySelectorAll("input").forEach(item => {
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item.disabled = 'disabled';
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});
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if (!merge_data.length) {
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document.getElementById("custom-search-results").innerHTML = params['json_wait'];
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if (params['json_src'] != '') {
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var json_src_str = params['json_src'].replace("/\s/g", "");
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var json_sources = json_src_str.split(",");
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var src_count = 0;
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for (var i = 0; i < json_sources.length; i++) {
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var xmlhttp = new XMLHttpRequest();
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var url = json_sources[i];
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xmlhttp.onreadystatechange = function() {
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if (this.readyState == 4 && this.status == 200) {
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var data = JSON.parse(this.responseText);
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for (var i = 0; i < data.length; i++) {
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merge_data.push(data[i]);
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}
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src_count++;
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if (src_count == json_sources.length) {
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document.getElementById("custom-search").querySelectorAll("input").forEach(item => {
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item.disabled = '';
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});
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document.getElementById("custom-search-field").focus();
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document.getElementById("custom-search-results").innerHTML = params['json_ready'];
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if ((query != '') && (query != null)) {
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customSearchResults();
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}
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}
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}
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if (this.status == 404) {
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document.getElementById("custom-search-results").innerHTML = params['err_filefailed'];
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}
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};
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xmlhttp.open("GET", url, true);
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xmlhttp.send();
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}
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}
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}
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}, false);
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document.getElementById("custom-search-field").addEventListener('keyup', function(e) {
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if (params['autocomplete'] == 1) {
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document.getElementById("custom-search-results").innerHTML = '';
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if (this.value == '') {
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document.getElementById("custom-search-results").innerHTML = params['err_nostring'];
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return false;
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} else if (this.value.length < params['minlength']) {
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document.getElementById("custom-search-results").innerHTML = params['err_badstring'];
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return false;
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} else if (this.value.length >= params['minlength']) {
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customSearchResults();
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}
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} else {
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if (this.value == '') {
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document.getElementById("custom-search-results").innerHTML = params['err_nostring'];
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}
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}
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});
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let sForm = document.getElementById("custom-search");
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if (params['defaultsearch'] != '') {
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sForm.querySelectorAll("input[name='option']").forEach(item => {
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item.addEventListener('click', event => {
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customSearchResults();
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});
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});
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}
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let sSection = '';
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if ((params['section_search'] == 1) && (sForm.elements["section[]"])) {
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sSection = sForm.elements["section[]"];
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sForm.querySelectorAll("input[name='section[]']").forEach(item => {
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item.addEventListener('click', event => {
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if (item.value == 'site') {
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if (item.checked) {
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sForm.querySelectorAll("input[name='section[]']").forEach(node => {
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node.checked = false;
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});
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sForm.querySelector("input[value='site']").checked = true;
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customSearchResults();
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}
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} else {
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if (item.checked) {
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sForm.querySelector("input[value='site']").checked = false;
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} else {
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var section_checked = [];
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for (var i = 0; i < sSection.length; i++) {
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if ((sSection[i].checked) && (sSection[i].value != 'site')) {
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section_checked.push(sSection[i].value);
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} else {
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continue;
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}
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}
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if (section_checked.length < 1) sForm.querySelector("input[value='site']").checked = true;
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}
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}
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if (document.getElementById("custom-search-field").value != '') {
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customSearchResults();
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}
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});
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});
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}
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function customSearchResults() {
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if (!merge_data.length) {
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return false;
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}
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var sOutput = document.getElementById("custom-search-results");
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var sString = document.getElementById("custom-search-field").value;
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if (sString == '') {
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sOutput.innerHTML = params['err_nostring'];
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return false;
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}
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if (sString.length < params['minlength']) {
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sOutput.innerHTML = params['err_badstring'];
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return false;
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}
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var data = merge_data;
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var add_searchlink = params['add_searchlink'];
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if ((add_searchlink) && (add_searchlink != '')) {
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add_searchlink = add_searchlink.replace(/\[QUERY\]/g, sString);
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}
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var sOption = '';
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var optionField = document.forms["custom-search"]["option"];
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if (optionField) {
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sOption = optionField.value;
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} else {
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sOption = params['defaultsearch'];
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}
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var badwords = [];
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if (params['badwords'] != '') {
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var badwords_str = params['badwords'];
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badwords_str = badwords_str.replace("/\s/g", "");
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badwords = badwords_str.split(",");
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}
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var words = [];
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var search_words = sString.split(" ");
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for (var i = 0; i < search_words.length; i++) {
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if (badwords.includes(search_words[i])) {
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continue;
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} else {
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words.push(search_words[i]);
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}
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}
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if (!words.length) {
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sOutput.innerHTML = params['err_badstring'];
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return false;
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}
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var section_filter = [];
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if (sSection != '') {
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for (var i = 0; i < sSection.length; i++) {
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if ((sSection[i].checked) && (sSection[i].value != 'site')) {
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section_filter.push(sSection[i].value);
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} else {
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continue;
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}
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}
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}
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var results = [];
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for (var i = 0; i < data.length; i++) {
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var title = data[i].title;
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var summary = data[i].summary;
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var content = data[i].content;
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var tags = data[i].tags;
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var section = data[i].section;
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if (section_filter.length >= 1) {
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if (!section_filter.includes(section)) {
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continue;
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}
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}
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var searchtext = '';
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if (title != '') searchtext += title;
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if (summary != '') searchtext += ' '+summary;
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if (content != '') searchtext += ' '+content;
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if (tags != '') searchtext += ' '+tags;
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var matched = 0;
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var matches = 0;
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var matches_calc = 0;
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var title_matches = 0;
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var tags_matches = 0;
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var summary_matches = 0;
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var content_matches = 0;
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for (var y = 0; y < words.length; y++) {
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var searchword = new RegExp(words[y], 'gi');
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if (searchword.test(searchtext) === true) {
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var wordmatches = searchtext.match(searchword);
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matches = matches + wordmatches.length;
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matches_calc = matches;
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for (var key in searchfield_weight) {
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var val = searchfield_weight[key];
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var searchstr = '';
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var count = '';
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if (key == 'title') searchstr = title;
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if ((key == 'tags') && (tags != '')) searchstr = tags.join(",");
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if (key == 'summary') searchstr = summary;
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if (key == 'content') searchstr = content;
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if (searchword.test(searchstr) === true) {
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matches_calc = matches_calc + val;
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count = searchstr.match(searchword).length;
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if (key == 'title') title_matches = title_matches + count;
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if ((key == 'tags') && (tags != '')) tags_matches = tags_matches + count;
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if (key == 'summary') summary_matches = summary_matches + count;
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if (key == 'content') content_matches = content_matches + count;
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}
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}
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matched++;
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}
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}
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data[i]['matches_calc'] = matches_calc;
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if ((debug != '') && (debug != null)) {
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data[i]['matches'] = matches;
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data[i]['title_matches'] = title_matches;
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data[i]['tags_matches'] = tags_matches;
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data[i]['summary_matches'] = summary_matches;
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data[i]['content_matches'] = content_matches;
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}
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if (sOption == 'OR') {
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if (matched >= 1) {
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results.push(data[i]);
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}
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} else {
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if (matched == words.length) {
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results.push(data[i]);
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}
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}
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}
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// results
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if (results.length >= 1) {
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results.sort(function(a, b) {
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if (params['sort_date'] == 'DESC') {
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return b.matches_calc - a.matches_calc || b.date - a.date;
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} else {
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return b.matches_calc - a.matches_calc || a.date - b.date;
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}
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});
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var results_header = '';
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if (results.length > 1) {
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results_header = params['res_more_items'];
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} else {
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results_header = params['res_one_item'];
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}
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results_header = results_header.replace("[CNT]", results.length);
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if ((add_searchlink) && (add_searchlink != '')) {
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results_header += add_searchlink;
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}
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var tag_top = params['res_out_top'];
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var tag_bottom = params['res_out_bottom'];
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var results_content = '';
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for (var i = 0; i < results.length; i++) {
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var title = results[i].title;
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var summary = results[i].summary;
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var date = results[i].date;
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var url = results[i].url;
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var tags = results[i].tags;
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var section = results[i].section;
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var extern = results[i].extern;
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// only for debug mode
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var infos = '';
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if ((debug != '') && (debug != null)) {
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var matches = results[i].matches;
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var matches_calc = results[i].matches_calc;
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var title_matches = results[i].title_matches;
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var tags_matches = results[i].tags_matches;
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var summary_matches = results[i].summary_matches;
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var content_matches = results[i].content_matches;
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var plus_title = title_matches >=1 ? '+ '+searchfield_weight['title'] : '+ 0';
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var plus_tags = tags_matches >=1 ? '+ '+searchfield_weight['tags'] : '+ 0';
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var plus_summary = summary_matches >=1 ? '+ '+searchfield_weight['summary'] : '+ 0';
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var plus_content = content_matches >=1 ? '+ '+searchfield_weight['content'] : '+ 0';
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infos += '<table style="font-size: 12px; color: #666666;">';
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infos += '<tr><td style="width: 100px;"><b>Gesamt:</b></td><td style="text-align: right;">'+matches+'</td></tr>';
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infos += '<tr><td>Title ('+title_matches+'):</td><td style="text-align: right;">'+plus_title+'</td></tr>';
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infos += '<tr><td>Tags ('+tags_matches+'):</td><td style="text-align: right;">'+plus_tags+'</td></tr>';
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infos += '<tr><td>Summary ('+summary_matches+'):</td><td style="text-align: right;">'+plus_summary+'</td></tr>';
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infos += '<tr><td>Content ('+content_matches+'):</td><td style="text-align: right;">'+plus_content+'</td></tr>';
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infos += '<tr><td><b>Gesamt neu:</b></td><td style="text-align: right;">'+matches_calc+'</td></tr>';
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infos += '</table><br>';
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}
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if ((extern == 1) && (params['extern_icon'])) {
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title += ' '+params['extern_icon'];
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url = url + '" target="_blank"';
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}
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if (section != '') {
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if (section_trans[section] != undefined) {
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section = section_trans[section];
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}
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}
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var newdate = new Date(date*1000);
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var datestr = newdate.toLocaleDateString();
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var templ = params['res_item_tpl'];
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if (templ) {
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templ = templ.replace("[TITLE]", title);
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templ = templ.replace(/\[URL\]/g, url);
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if (templ.includes("[DATE]")) {
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if (date != '') {
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templ = templ.replace("[DATE]", datestr);
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} else {
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templ = templ.replace("[DATE]", '');
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}
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}
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if (templ.includes("[SUMMARY]")) {
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if (summary != '') {
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templ = templ.replace("[SUMMARY]", summary);
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} else {
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templ = templ.replace("[SUMMARY]", '');
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}
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}
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if (templ.includes("[TAGS]")) {
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if (tags != '') {
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tags = tags.join(",");
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tags = tags.replace(/,/g, ", ");
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templ = templ.replace("[TAGS]", tags);
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} else {
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templ = templ.replace("[TAGS]", '');
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}
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}
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if (templ.includes("[SECTION]")) {
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if (section != '') {
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templ = templ.replace("[SECTION]", '['+section+'] ');
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} else {
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templ = templ.replace("[SECTION]", '');
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}
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}
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results_content += templ;
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if (infos != '') {
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results_content += '<li>'+infos+'</li>';
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}
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}
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}
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sOutput.innerHTML = results_header+tag_top+results_content+tag_bottom;
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} else {
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var noresult = '';
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if ((add_searchlink) && (add_searchlink != '')) {
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noresult += add_searchlink;
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}
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noresult += params['err_noresult'];
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sOutput.innerHTML = noresult;
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}
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}
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