Hi I need to know is how to read cookies on a html web-view . I have a banner to close it generates a cookie and the idea would be to go to another page that has the banner he would read the cookie to see if the User already have clicked ...
this is the cookie code
function createCookie() {
var d = new Date();
d.setTime(d.getTime() + (1*24*60*60*1000));
var expires = "expires="+d.toUTCString();
document.cookie = "cookie=cookie ; " + expires+';path = http://www.pitstop.com.br/';
document.getElementById('banner_id').style.display='none';
}
function getCookie(cname) {
var name = cname + "=";
var ca = document.cookie.split(';');
for(var i=0; i<ca.length; i++) {
var c = ca[i];
while (c.charAt(0)==' ') c = c.substring(1);
if (c.indexOf(name) == 0) return c.substring(name.length, c.length);
}
return null;
}
function banner_cookie(){
var teste = getCookie('cookie');
if(teste !=null){
alert(teste);
document.getElementById('banner_id').style.display='none';
}else{
document.getElementById('banner_id').style.display
}
}
You have many issues that seems to stem from wishful thinking and misunderstanding.
For example your path is wrong and you need to pass a name to the cookie script instead of hardcoding the name "cookie"
You need to take a well tested cookie script and use it properly.
function getCookie(name) {
var start = document.cookie.indexOf(name + "=");
var len = start + name.length + 1;
if ((!start) && (name != document.cookie.substring(0, name.length))) {
return null;
}
if (start == -1) return null;
var end = document.cookie.indexOf(';', len);
if (end == -1) end = document.cookie.length;
return unescape(document.cookie.substring(len, end));
}
function setCookie(name, value, expires, path, domain, secure) {
var today = new Date();
today.setTime(today.getTime());
if (expires) {
expires = expires * 1000 * 60 * 60 * 24;
}
var expires_date = new Date(today.getTime() + (expires));
document.cookie = name + '=' + escape(value) +
((expires) ? ';expires=' + expires_date.toGMTString() : '') + //expires.toGMTString()
((path) ? ';path=' + path : '') +
((domain) ? ';domain=' + domain : '') +
((secure) ? ';secure' : '');
}
function deleteCookie(name, path, domain) {
if (getCookie(name)) document.cookie = name + '=' +
((path) ? ';path=' + path : '') +
((domain) ? ';domain=' + domain : '') +
';expires=Thu, 01-Jan-1970 00:00:01 GMT';
}
Your script:
function banner_cookie(){
var teste = getCookie('showbanner')=="true";
document.getElementById('banner_id').style.display=teste?"block":"none";
}
and to set:
setCookie("showbanner","true",14,"/"); // 2 weeks accessible to all website
and to remove
deleteCookie("showbanner","/");
Related
I am using the functions, SET/Get and check cookie.
The getCookie function, splits the cookie by using(';') it works fine unless I want to save some text which has (';') inside by cookie.
The split function splits the content incorrectly based on (';').
When I change that to something else like ('&') it does not save at all!
Can anyone give an idea what can I use for that?
function setCookie(content, player) {
var d = new Date();
d.setTime(d.getTime() + (365 * 24 * 60 * 60 * 1000));
var expires = "expires=" + d.toUTCString();
document.cookie = player + "=" + content + "; " + expires;
}
//check if the coockie with current player name exists
function checkCookie(player_name) {
var pnote = getCookie(player_name);
alert(pnote);
var delete_cookie = function (player_name) {
document.cookie = player_name + '=;expires=Thu, 01 Jan 1970 00:00:01 GMT;';
};
if (pnote != "") {
$('#tab' + player_name + ' .nicEdit-main').html(pnote);
} else {
if (player_name != "" && player_name != null) {
$('#tab' + player_name + ' .nicEdit-main').prepend("no note");
}
}
}
//Gets the cookie content
function getCookie(player_name) {
var name = player_name + "=";
var ca = document.cookie.split(';');
for (var i = 0; i < ca.length; i++) {
var c = ca[i];
while (c.charAt(0) == ' ')
c = c.substring(1);
if (c.indexOf(name) == 0)
return c.substring(name.length, c.length);
}
return "";
}
in setCookie use escape function :
document.cookie = player + "=" + escape(content) + "; " + expires;
and in getCookie use unescape function
return unescape(c.substring(name.length, c.length));
So I am new to JavaScript and I'm kinda stuck.
I want to allow my cookie to work on all of my pages.
I know that I need to add "/" to path. The only problem is that the little script I got is a bit different than all the examples out there.
Does somebody know where to put it?
var expdate = new Date();
expdate.setTime(expdate.getTime() + (24 * 60 * 60 * 1000 * 365));
function setCookie(name, value, expires, path, domain, secure) {
var thisCookie = name + "=" + escape(value) + ((expires) ? "; expires=" +
expires.toGMTString() : "") + ((path) ? "; path=" + path : "") + ((domain) ? ";domain=" + domain : "") + ((secure) ? "; secure" : "");
document.cookie = thisCookie;
}
function showCookie() {
alert(unescape(document.cookie));
}
function getCookieVal(offset) {
var endstr = document.cookie.indexOf(";", offset);
if (endstr == -1) endstr = document.cookie.length;
return unescape(document.cookie.substring(offset, endstr));
}
function GetCookie(name) {
var arg = name + "=";
var alen = arg.length;
var clen = document.cookie.length;
var i = 0;
while (i < clen) {
var j = i + alen;
if (document.cookie.substring(i, j) == arg) return getCookieVal(j);
i = document.cookie.indexOf(" ", i) + 1;
if (i === 0) break;
}
return null;
}
function MyNamer() {
var now = new Date();
now.setTime(now.getTime() + 365 * 24 * 60 * 60 * 1000);
var username = GetCookie("username");
if ((!username) || (username == 'null')) {
username = prompt("What is your name?:", "");
}
setCookie("username", username, now);
if (username) {
document.write(username);
setCookie("username", username, now);
} else
document.write("Guest")
}
Thanks in advance!
Well, from your code it looks like the 4th argument in setCookie is the one you want:
setCookie(name, value, expires, path, domain, secure)
e.g.setCookie("myCookie", "myCookieValue", new Date(), "/")
What are you using the cookie for? The webserver you're making the request from controls cookie data, including path. If you're just storing data then you could use the browsers' local/session storage objects?
I used the following JavaScript to create a pop-up window on the website and for it to show up only once. Now, my client wants a new promotion and I am trying to delete existing cookies and make it pop-up again (so that people who already visited the website, see the pop-up window again, only once like before). Here is the current code:
<!--
function setCookie(name, value, expires, path, domain, secure) {
var curCookie = name + "=" + escape(value) +
((expires) ? "; expires=" + expires.toGMTString() : "") +
((path) ? "; path=" + path : "") +
((domain) ? "; domain=" + domain : "") +
((secure) ? "; secure" : "");
document.cookie = curCookie;
}
function setCookie(name, value, expires, path, domain, secure) {
var curCookie = name + "=" + escape(value) +
((path) ? "; path=" + path : "") +
((domain) ? "; domain=" + domain : "") +
((secure) ? "; secure" : "") +
((expires) ? "; expires=" + expires.toGMTString() : "") ;
document.cookie = curCookie;
}
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));
}
function pop()
{
$(document).ready(function() {
$('#myModal').reveal();
});
}
var seen = getCookie("seen");
if (!seen) {
var now = new Date();
now.setTime(now.getTime() + 360000 * 1000);
setCookie("seen", 1, now);
pop();
}
//-->
I tried the following to reset the cookies
<!--
function setCookie(name, value, expires, path, domain, secure) {
var curCookie = name + "=" + escape(value) +
((expires) ? "; expires=" + expires.toGMTString() : "") +
((path) ? "; path=" + path : "") +
((domain) ? "; domain=" + domain : "") +
((secure) ? "; secure" : "");
document.cookie = curCookie;
}
function setCookie(name, value, expires, path, domain, secure) {
var curCookie = name + "=" + escape(value) +
((path) ? "; path=" + path : "") +
((domain) ? "; domain=" + domain : "") +
((secure) ? "; secure" : "") +
**";expires=Thu, 01 Jan 1970 00:00:01 GMT";**
document.cookie = curCookie;
}
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));
}
function pop()
{
$(document).ready(function() {
$('#myModal').reveal();
});
}
var seen = getCookie("seen");
if (!seen) {
var now = new Date();
now.setTime(now.getTime() + 1 * 1000);
setCookie("seen", 1, now);
pop();
}
//-->
It's not working. I'm new to JavaScript and would appreciate your help!
I see you have a nice mess so, if I have understood well, this code should do the job:
// on document ready
$(function(){
// check for the old cookie and delete it
if( Cookies.Check('seen') ) Cookies.Set('seen', '', -1); // delete the cookie if it exists
// now work with a new one with other name
if( !Cookies.Check('newmodal') ){ // if the cookie doesn't exist we show the modal and set the cookie
$('#myModal').reveal();
Cookies.Set('newmodal', 'true', 365); // days, if you need to use minutes see the method below
} // there is no `else` here, if the cookie exists nothing happens
});
/**
* Object with methods to manage cookies
* #type Object
*/
var Cookies = {
/**
* Checks if a cookie exists
* #param {String} name
* #return Boolean
*/
Check: function (name) {
return !!this.Get(name);
},
/**
* Gets a cookie value or returns false
* #param {String} name
* #return String|Boolean
*/
Get: function (name) {
var n, ca, c;
n = name + "=";
ca = document.cookie.split(';');
for (var i = 0; i < ca.length; i++) {
c = ca[i].trim();
if (c.indexOf(name) === 0) return c.substring(name.length + 1, c.length);
}
return false;
},
/**
* Sets a cookie
* #param {String} name
* #param {String} value
* #param {Number} [expire]
* #param {Object} [options]
* #return Boolean|void
*/
Set: function (name, value, expire, options) {
var d = new Date(), expires;
var defaults = { expire_in: 'days', path: '/' };
if (typeof options !== "undefined") $.extend(true, defaults, options);
if (expire !== undefined && expire !== null) {
if (defaults.expire_in == 'days') d.setDate(d.getDate() + expire);
else if (defaults.expire_in == 'minutes') d.setDate(d.getTime() + expire * 1000);
else {
throw new JUtils.EX('expire_in configuration is not valid');
}
expires = "expires=" + d.toGMTString();
}
else expires = expires = "";
document.cookie = name + "=" + value + "; " + expires + '; path=' + defaults.path;
return true;
}
};
I am trying to find out if its the users first time on my webpage. I am currently storing a variable in local storage and checking if its null or not but it doesn't seem to work in Internet Explorer. What other method can I use to accomplish this?
var str_count = localStorage.getItem("count");
if (str_count == null || str_count == "null")
{
// Do something
}
Setting cookie with long expiration date is definitely more reliable that using localStorage as it is not yet supported by older browsers.
Check this code:
function createCookie(name,value,days) {
if (days) {
var date = new Date();
date.setTime(date.getTime()+(days*24*60*60*1000));
var expires = "; expires="+date.toGMTString();
}
else var expires = "";
document.cookie = name+"="+value+expires+"; path=/";
}
function readCookie(name) {
var nameEQ = name + "=";
var ca = document.cookie.split(';');
for(var i=0;i < ca.length;i++) {
var c = ca[i];
while (c.charAt(0)==' ') c = c.substring(1,c.length);
if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
}
return null;
}
function eraseCookie(name) {
createCookie(name,"",-1);
}
Read more about cookies here.
You can set a cookie with
document.cookie = name + "=" + value + "; expires=" + exp + "; path=/";
More info here: http://www.w3schools.com/js/js_cookies.asp
More info here: http://www.quirksmode.org/js/cookies.html
As #Greg said, the better solution is to set and get cookie values. Here's two functions to do this:
setCookie = function(){
var args = arguments,
name = (args[0] ? args[0] : '') + '=',
_value = args[1] ? escape(args[1]) : '',
value = _value + ';',
expires = args[2] ? 'expires=' + args[2].toUTCString() + ';' : '',
path = args[3] ? 'path=' + args[3] + ';' : '',
domain = args[4] ? 'domain=' + args[4] + ';' : '',
secure = args[5] ? 'secure;' : '',
newCookie = name + value + expires + path + domain + secure;
document.cookie = newCookie.match(/[a-z||A-Z]/) ? newCookie : ''
return _value;
},
getCookie = function(name){
if(!name || name.replace(/[^a-z|0-9|çáéíóúãõâêîôûàèìòùäëïöü]/,'')=='*') return document.cookie;
var ck = ' ' + document.cookie + ' ',
pos = ck.search(' ' + name + '='),
pos = (pos!=-1) ? pos + 1 : ck.length,
ck = ck.substring(pos-1,ck.length),
end = (ck.search('; ')!=-1) ? ck.search('; ') : ck.length,
value = ck.substring(((ck.search('=')!=-1) ? (ck.search('=')+1) : end),end);
return unescape((value[value.length-1]==' ') ? value.substring(0,value.length-1) : value);
}
They're crossbrowser functions. To use getCookie function, just use the name parameter, and with the setCookie function, use the name,value,expires,path,domain,secure parameters
For some reason this script gets stuck in a redirection loop and wont let you leave "android.html". The url bar shows it is trying to go to "index.html" but it just flashes then stays on "android.html"
var caution = false
function setCookie(name, value, expires, path, domain, secure) {
var curCookie = name + "=" + escape(value) +
((expires) ? "; expires=" + expires.toGMTString() : "") +
((path) ? "; path=" + path : "") +
((domain) ? "; domain=" + domain : "") +
((secure) ? "; secure" : "")
if (!caution || (name + "=" + escape(value)).length <= 4000)
document.cookie = curCookie
else
if (confirm("Cookie exceeds 4KB and will be cut!"))
document.cookie = curCookie
}
function getCookie(name) {
var prefix = name + "="
var cookieStartIndex = document.cookie.indexOf(prefix)
if (cookieStartIndex == -1)
return null
var cookieEndIndex = document.cookie.indexOf(";", cookieStartIndex + prefix.length)
if (cookieEndIndex == -1)
cookieEndIndex = document.cookie.length
return unescape(document.cookie.substring(cookieStartIndex + prefix.length, cookieEndIndex))
}
function deleteCookie(name, path, domain) {
if (getCookie(name)) {
document.cookie = name + "=" +
((path) ? "; path=" + path : "") +
((domain) ? "; domain=" + domain : "") +
"; expires=Thu, 01-Jan-70 00:00:01 GMT"
}
}
function fixDate(date) {
var base = new Date(0)
var skew = base.getTime()
if (skew > 0)
date.setTime(date.getTime() - skew)
}
var now = new Date()
fixDate(now)
now.setTime(now.getTime() + 365 * 24 * 60 * 60 * 1000)
var visits = getCookie("indexVisited")
if (!visits)
window.location.replace("./android.html");
else
window.location.replace("./index.html");
setCookie("indexVisited", visits, now)
Besides missing a whole lot of semicolons, your code tries to set the cookie after it redirects to another page. Javascript stops executing upon a redirect, so your setCookie call never gets executed. Try moving it up before the redirects.