Reading browser cookies in safari extension

Question

I am new to safari extension development. I need to access browser cookies specific to a web site. I know that this is possible with in chrome extension development. How can do this with safari extension development.

Answer 1

From an injected script you can send the cookies to the extension. So when building the extension you have global.html and injected.js.

injected.js:

var cookies = document.cookie;
safari.self.tab.dispatchMessage("setCookies",cookies);

global.html (without the HTML tags):

var cookies = null;

function getCookies(incMsg) {
    cookies = incMsg.message;
    alert('I received them :) \n\n'+cookies);
}

safari.application.addEventListener("message",getCookies,false);

The code above will send all the cookies to the extension each time you load a page. Then of course you still need to read out the cookies. I used something like the following function (in global.html):

function readCookie(name) {
    if(cookies) {
        var nameEQ = name + "=";
        var ca = cookies.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;
    }
}

Good luck!