search.js

$(function () {

	setupQuery();


	var queryPos = $("#query").position();
	var queryWidth = $("#query").innerWidth();

	//	$("#engineInfo").css("left", $("#engine").position().left + 7);
	//	$("#engineInfo").width($("#engine").width() - 32);

	// pick a random search engine
	//setEngine(engines[Math.floor(Math.random() * engines.length)]);

	// hide all the radio buttons if JS is enabled
	$(".engine button").focus(function () {
		$(".engine").removeClass("focus")
		$(this).parents(".engine").addClass("focus");
	})

	$(".engine button").focusout(function () {
		$(".engine").removeClass("focus")
	})

	$(".engine").click(function () {
		setEngine($(this).find("button").first().attr("id"));
		doSearch();
	});


	// sniff browser and determine what information to display
	/*
	var browser = $.browser;
	if (browser.mozilla) {
		if (browser.version.substr(0,3) == "1.9") {
			$("#remove").show();
		} else {
			$("#add").show();
			$("#searchBar").show();
		}
	} else {
		$("#add").show();

		if (browser.msie && browser.version.substr(0,1) > 6) {
			$("#searchBar").show();
		} else {
			$("#addressBar").show();
		}
	}
	*/
	$('#addOpenSearch').click(function () {
		if ((typeof window.external == "object") && ((typeof window.external.AddSearchProvider == "unknown") || (typeof window.external.AddSearchProvider == "function"))) {
			window.external.AddSearchProvider("http://oldsearch.creativecommons.org/ccsearch.xml");
		} else {
			alert("Your browser does not support OpenSearch.");
		}

		return false;
	});

	$('#lang').change(function () {
		/* get value of the language */
		var lang_chosen = $("#lang").val();
		var new_loc = location.href.split('?')[0];
		new_loc = new_loc.split('#')[0]; /* Remove spurious "#" */
		new_loc = new_loc + '?lang=' + lang_chosen;
		window.location = new_loc;
	});
});


/*
 * Creative Commons Search Portal Interface
 * 1.0 - 2006-07
 * 
 */
var engines = ["google", "googleimg", "flickr", "jamendo", "openclipart", "wikimediacommons", "fotopedia", "europeana", "youtube", "ccmixter", "soundcloud", "thingiverse"];
//defaults:
var engine = "";
var comm = 1;
var deriv = 1;
var rights = "";
var url = "";
var lang = "";

var default_query = "flowers";
var default_engine = "_random";
//var default_comm = 1;
//var default_deriv = 1;

/*
// DEBUG!!!!!
var d = new Date();
d.setFullYear(2020,0,1);
setCookie("ccsearch", "jamendo", d, '/') 
alert("cookie planted!  mwahahahaha");
// \DEBUG!!!!!
*/

// mmm, cookies...
function setCookie(name, value, expires, path, domain, secure) {
	document.cookie = name + "=" + escape(value) +
		((expires) ? "; expires=" + expires.toGMTString() : "") +
		((path) ? "; path=" + path : "") +
		((domain) ? "; domain=" + domain : "") +
		((secure) ? "; secure" : "");
}
function getCookie(name) {
	var dc = document.cookie;
	var prefix = name + "=";
	var begin = dc.indexOf("; " + prefix);
	if (begin == -1) {
		begin = dc.indexOf(prefix);
		if (begin != 0) return null;
	} else {
		begin += 2;
	}
	var end = document.cookie.indexOf(";", begin);
	if (end == -1) {
		end = dc.length;
	}
	return unescape(dc.substring(begin + prefix.length, end));
}
////

var cookie_name = '__ccsearch';
var cookie_break_text = "[-]";
var cookie_domain = 'oldsearch.creativecommons.org';
//var cookie_domain = '';

function saveSettings() {
	var cookieDate = new Date();
	cookieDate.setFullYear(2020, 0, 1);

	cookieText = engine + cookie_break_text + comm + cookie_break_text + deriv;
	setCookie(cookie_name, cookieText, cookieDate, '/', cookie_domain);
}

function getSettings() {
	cookieText = getCookie(cookie_name);

	if (cookieText && cookieText != '') {
		//break it into pieces
		cookieCrumbs = cookieText.split(cookie_break_text);

		engine = cookieCrumbs[0];
		if (1 in cookieCrumbs) {
			comm = cookieCrumbs[1];
		}
		if (2 in cookieCrumbs) {
			deriv = cookieCrumbs[2];
		}
	}
	else {
	}

	if (engine == null || !engine || engine == "") {
		//engine = default_engine;
		engine = "_random";

		//engine = engines[Math.floor(Math.random() * engines.length)];
	}

}

// function by Pete Freitag (pete@cfdev.com)
function getQueryStrVariable(variable) {
	var query = window.location.search.substring(1);
	var vars = query.split("&");
	for (var i = 0; i < vars.length; i++) {
		var pair = vars[i].split("=");
		if (pair[0] == variable) {
			return pair[1];
		}
	}
	return '';
}

function show_ffx_msg() {
	$('#ffx-search-bar-info').style.display = "block";
}

// initialise app
function setupQuery() {
	var query = $("#query");
	var qs = getQueryStrVariable('q');
	qs = unescape(qs);
	var moz = getQueryStrVariable('sourceid');
	var e = getQueryStrVariable('engine');
	var docom = getQueryStrVariable('commercial');
	var doder = getQueryStrVariable('derivatives');

	// display firefox branding 
	if (moz == "Mozilla-search") {
		show_ffx_msg();
	}

	// grab cookie and setup default engine
	getSettings();
	if (e) {
		setEngine(e);
	}
	else {
		setEngine(engine);
	}

	// set commercial + derivative checkboxes
	updateCommDerivCheckboxes(docom, doder);

	//lang = getQueryStrVariable('lang');

	// Only insert query variable if nothing else is in the search entry
	// Should solve back button problems	
	if (query.val().length < 1 && qs) query.val(qs);

	// Since we don't have a submit button, be nice to users and
	// set focus in search box.
	query.focus();
}

// bell
function wakeQuery() {
	var query = $('#q');

	if (query.value == d) {
		query.val("");
		query.addClass("active");
		query.removeClass("inactive");
	}
}

// whistle
function resetQuery() {
	var query = $('#q');

	if (query.value == "") {
		query.val(d);
		query.addClass("inactive");
		query.removeClass("active");
	}
}

function setEngine(e) {
	var previous = engine;

	var query = $("#query");
	if (query.hasClass("inactive")) {
		query.val(default_query);
		query.addClass("active");
		query.removeClass("inactive");
	}

	if (typeof e == "string") {
		if (e == "_random") {
			engine = engines[Math.floor(Math.random() * engines.length)];
		} else {
			engine = e;
		}
	} else {
		engine = e.value;
	}

	$("#engineInfo ." + previous).hide();
	$("#engineInfo ." + engine).show();

	$("button[value=" + engine + "]").attr("checked", true);

	$(".engine").removeClass("selected");
	$("button[value=" + engine + "]").parents(".engine").addClass("selected");

	//if (e == "_random") engine = "_random";	
	saveSettings();

	//doSearch();

}

function setCommDeriv() {
	if ($('#comm').attr("checked"))
		comm = 1;
	else
		comm = 0;
	if ($('#deriv').attr("checked"))
		deriv = 1;
	else
		deriv = 0;

	saveSettings();
}

function updateCommDerivCheckboxes(comOverride, derivOverride) {
	if ((comm == 1))
		$('#comm').attr("checked", true);
	else
		$('#comm').attr("checked", false);
	if ((deriv == 1))
		$('#deriv').attr("checked", true);
	else
		$('#deriv').attr("checked", false);
}

// build advanced search query strings
// each engine has vastly different ways to do this. :/
function modRights() {

	var comm = $("#comm").attr("checked");
	var deriv = $("#deriv").attr("checked");
	rights = "";

	switch (engine) {

		case "google":
			// Google apparently doesn't like .-() appended to the
			// as_rights query string variable, so if neither the
			// commercial or deriv checkboxes are checked then rights
			// should just be empty.
			if ((comm == false) && (deriv == false)) {
				rights = "";
				break;
			}

			//.-(cc_noncommercial|cc_nonderived)
			rights = ".-(";

			if (comm) {
				rights += "cc_noncommercial";
			}
			if (deriv) {
				(comm) ? rights += "|" : null;
				rights += "cc_nonderived";
			}

			rights += ")";
			break;


		case "googleimg":
			//.-(cc_noncommercial|cc_nonderived)

			// Google apparently doesn't like .-() appended to the
			// as_rights query string variable, so if neither the
			// commercial or deriv checkboxes are checked then rights
			// should just be empty.
			if ((comm == false) && (deriv == false)) {
				rights = "";
				break;
			}

			rights = ".-(";

			if (comm) {
				rights += "cc_noncommercial";
			}
			if (deriv) {
				(comm) ? rights += "|" : null;
				rights += "cc_nonderived";
			}

			rights += ")";
			break;

		case "thingiverse":
			/*
				If "comm" or "deriv" is provided, then we first apply the filter
				to capture only results of type "things" before adding the specifics we require because
				the "customizable" and "licence" filters on thingiverse only work alongside the "things" filter
			*/
			if (comm || deriv) {
				rights = "&type=things&sort=relevant";
				rights += deriv ? "&customizable=1" : "";
				
				// Used the licence=cc (which on Thingiverse, stands for the Creative Commons Attribution license)
				// as the equivalent for the "modify, reuse ..." filter on CC search
				rights += comm ? "&license=cc": "";
			}

			break;

		case "yahoo":
			rights = "&";
			if (comm) {
				rights += "ccs=c&";
			}
			if (deriv) {
				rights += "ccs=e";
			}
			break;

		case "flickr":
			rights = "l=";
			if (comm) {
				rights += "comm";
			}
			if (deriv) {
				rights += "deriv";
			}
			break;

		case "jamendo":
			if (comm && deriv) {
				rights = '-nc%20AND%20-nd';
			} else if (comm) {
				rights = '-nc';
			} else if (deriv) {
				rights = '-nd';
			}
			break;

		case "wikimediacommons":
			rights = "";
			if (rights.length < 5) rights = "";
			break;

		case "fotopedia":
			rights = "";
			if (comm && deriv) {
				rights = "reuse_commercial_modify";
			} else if (comm && !deriv) {
				rights = "reuse_commercial";
			} else if (!comm && deriv) {
				rights = "reuse_modify"
			} else {
				rights = "reuse";
			}
			break;
		case "europeana":
			rights = "";
			if (comm && deriv) {
				rights = "+AND+RIGHTS%3A*creative*+AND+NOT+RIGHTS%3A*nc*+AND+NOT+RIGHTS%3A*nd*";
			} else if (comm && !deriv) {
				rights = "+AND+RIGHTS%3A*creative*+AND+NOT+RIGHTS%3A*nc*";
			} else if (!comm && deriv) {
				rights = "+AND+RIGHTS%3A*creative*+AND+NOT+RIGHTS%3A*nd*"
			} else {
				rights = "+AND+RIGHTS%3A*creative*+";
			}

			break;
		case "ccmixter":
			rights = "";
			if (comm && deriv) {
				rights = "&lic=by,sa,s,splus,pd,zero";
			} else if (comm && !deriv) {
				rights = "&lic=open";
			} else if (!comm && deriv) {
				rights = "&lic=by,nc,sa,ncsa,s,splus,pd,zero"
			}
			break;
		case "soundcloud":
			rights = "";
			if (comm && deriv) {
				rights = "&filter.license=to_modify_commercially";
			} else if (comm && !deriv) {
				rights = "&filter.license=to_use_commercially";
			} else if ((!comm && deriv) || (!comm && !deriv)) {
				rights = "&filter.license=to_share";
			}
			break;

	}

}

// "main logic", no turning back.
function doSearch() {
	var query = $("#query");
	var comm = $("#comm").attr("checked");
	var deriv = $("#deriv").attr("checked");

	// We never want the search to execute with the default text
	if (query.val() == "Enter search query") {
		query.val(default_query);
	}

	url = "";

	// search only if there is something to search with
	if ((query.val().length > 0)/* && (query.className == "active")*/) {
		// set up rights string, works if user hits "go" or a tab. 
		modRights();

		// NOTE: if you make changes here, you should make a similar change in search.php 
		switch (engine) {
			case "openclipart":
				url = 'http://openclipart.org/search/?query=' + query.val();
				break;

			case "jamendo":
				if (rights) {
					url = 'http://www.jamendo.com/search?qs=fq=license_cc:(' + rights + ')&q=' + query.val();
				} else {
					url = 'http://www.jamendo.com/search?qs=q=' + query.val();
				}
				break;

			case "flickr":
				url = 'http://flickr.com/search/?' + ((rights.length > 2) ? rights : "l=cc") + '&q=' + query.val();
				break;

			case "owlmm":
				url = 'http://www.owlmm.com/?query_source=CC&' + ((rights.length > 13) ? rights : "license_type=cc") + '&q=' + query.val();
				break;

			case "yahoo":
				url = 'http://search.yahoo.com/search?cc=1&p=' + query.val() + rights;
				break;

			case "googleimg":
				url = 'https://www.google.com/search?site=imghp&tbm=isch&q=' + query.val() + '&tbs=sur:f' + ((deriv) ? "m" : "") + ((comm) ? "c" : "") + '%2Cil:cl';
				break;

			case "wikimediacommons":
				url = 'http://commons.wikimedia.org/w/index.php?title=Special%3ASearch&redirs=0&search=' + query.val() + '&fulltext=Search&ns0=1&ns6=1&ns14=1&title=Special%3ASearch&advanced=1&fulltext=Advanced+search';
				break;

			case "fotopedia":
				url = 'http://www.fotopedia.com/search?q=' + query.val() + '&human_license=' + rights;
				break;

			case "europeana":
				url = 'http://www.europeana.eu/portal/search.html?query=' + query.val() + rights;
				break;

			case "youtube":
				url = 'http://www.youtube.com/results?search_query=' + query.val() + ',creativecommons';
				break;

			case "ccmixter":
				url = 'http://ccmixter.org/api/query?datasource=uploads&search_type=all&sort=rank&search=' + query.val() + rights;
				break;

			case "soundcloud":
				url = 'http://soundcloud.com/search/sounds?q=' + query.val() + rights;
				break;
			
			case "thingiverse":
				url = 'https://www.thingiverse.com/search?q=' + query.val() + rights;
				break;

			case "google":
			default:
				url = 'http://google.com/search?as_rights=(cc_publicdomain|cc_attribute|cc_sharealike' +
					((comm) ? "" : "|cc_noncommercial") + ((deriv) ? "" : "|cc_nonderived") + ')' +
					rights + '&q=' + query.val();
				if (lang != null) url += '&hl=' + lang;
				break;

		}

		url = 'https://oldsearch.creativecommons.org/bouncer.php?q=' + query.val() + '&url=' + encodeURIComponent(url);

		window.open(
			url,
			'_blank',
			'noopener'
		);
		//	document.getElementBy$('#stat').setAttribute('src','transparent.gif?engine='+engine+'&comm='+comm+'&deriv='+deriv+'&q='+query.value);
	}
	return false;
}

// i18n
function grabOriginalLanguage() {
	return document.getElementsByTagName('html')[0].lang.replace('-', '_');
}


function grabChosenLanguage() {
	var select_box = document.getElementById('lang');
	for (var i = 0; i < select_box.childNodes.length; i++) {
		var select_child = select_box.childNodes[i];
		if (select_child.nodeType == 1) {
			if (select_child.selected) {
				return select_child.value;
			}
		}
	}
	return null;
}