some UI frontend cookies respect session cookie lifetime, misc cookie cleanups (closes #52)

backend.php

@@ -102,7 +102,7 @@
 
 	$fetch = $_GET["fetch"];
 
-	setcookie("ttrss_icons_url", ICONS_URL);
+//	setcookie("ttrss_icons_url", ICONS_URL);
 
 	if (!sanity_check($link)) { return; }
 

feedlist.js

@@ -65,7 +65,7 @@ function viewfeed(feed, skip, subop, doc, is_cat) {
 			view_mode = "All Posts";
 		}
 	
-		setCookie("ttrss_vf_vmode", view_mode);
+		setCookie("ttrss_vf_vmode", view_mode, getCookie("ttrss_cltime"));
 	
 		var limitbox = doc.getElementById("limitbox");
 	
@@ -73,7 +73,7 @@ function viewfeed(feed, skip, subop, doc, is_cat) {
 	
 		if (limitbox) {
 			limit = limitbox[limitbox.selectedIndex].text;
-			setCookie("ttrss_vf_limit", limit);
+			setCookie("ttrss_vf_limit", limit, getCookie("ttrss_cltime"));
 		} else {
 			limit = "All";
 		}

functions.js

@@ -267,7 +267,20 @@ function getFeedIds() {
 	return rows;
 }
 
-function setCookie(name, value, expires, path, domain, secure) {
+function setCookie(name, value, lifetime, path, domain, secure) {
+	
+	var d = false;
+	
+	if (lifetime) {
+		d = new Date();
+		d.setTime(lifetime * 1000);
+	}
+	
+	int_setCookie(name, value, d, path, domain, secure);
+
+}
+
+function int_setCookie(name, value, expires, path, domain, secure) {
 	document.cookie= name + "=" + escape(value) +
 		((expires) ? "; expires=" + expires.toGMTString() : "") +
 		((path) ? "; path=" + path : "") +
@@ -275,6 +288,16 @@ function setCookie(name, value, expires, path, domain, secure) {
 		((secure) ? "; secure" : "");
 }
 
+function delCookie(name, path, domain) {
+	if (getCookie(name)) {
+		document.cookie = name + "=" +
+		((path) ? ";path=" + path : "") +
+		((domain) ? ";domain=" + domain : "" ) +
+		";expires=Thu, 01-Jan-1970 00:00:01 GMT";
+	}
+}
+		
+
 function getCookie(name) {
 
 	var dc = document.cookie;

login.php

@@ -41,7 +41,16 @@
 
 		if (authenticate_user($link, $login, $password)) {
 			initialize_user_prefs($link, $_SESSION["uid"]); 
-			
+
+			if ($_POST["remember_me"]) {
+				$_SESSION["cookie_lifetime"] = time() + SESSION_COOKIE_LIFETIME_REMEMBER;
+			} else {
+				$_SESSION["cookie_lifetime"] = time() + SESSION_COOKIE_LIFETIME;
+			}
+
+			setcookie("ttrss_cltime", $_SESSION["cookie_lifetime"], 
+				$_SESSION["cookie_lifetime"]);
+
 			if (!$return_to) {
 				$return_to = "tt-rss.php";
 			}

tt-rss.js

@@ -9,6 +9,7 @@ var daemon_enabled = false;
 var _qfd_deleted_feed = 0;
 var firsttime_update = true;
 var last_refetch = 0;
+var cookie_lifetime = 0;
 
 /*@cc_on @*/
 /*@if (@_jscript_version >= 5)
@@ -438,6 +439,10 @@ function init_second_stage() {
 
 	try {
 
+		cookie_lifetime = getCookie("ttrss_cltime");
+
+		delCookie("ttrss_vf_test");
+
 		setCookie("ttrss_vf_actfeed", "");
 	
 		updateFeedList(false, false);