<!DOCTYPE html>
<meta charset=utf-8>
<title>CORS - Response headers</title>
<meta name=author title="Odin Hørthe Omdal" href="mailto:odiho@opera.com">

<script src=/resources/testharness.js></script>
<script src=/resources/testharnessreport.js></script>
<script src=support.js?pipe=sub></script>

<h1>Response headers</h1>
<div id=log></div>
<script>

/*
 * Response Headers
 */

function check_response_header(head, value, desc) {
    async_test(function() {
        var client = new XMLHttpRequest()
        client.open('GET', CROSSDOMAIN + 'resources/cors-headers.asis', true)
        client.onerror = this.step_func(function() {
             assert_unreached("response error")
        })
        client.onload = this.step_func(function(e) {
            if (typeof value === 'function')
                value(client, head)
            else
                assert_equals(client.getResponseHeader(head), value, head)
            this.done()})
        client.send()
    }, desc)
}

check_response_header('X-Custom-Header-Comma', '1, 2', 'getResponseHeader: Expose Access-Control-Expose-Headers (x-custom-header-comma)')
check_response_header('X-Second-Expose', 'flyingpig', 'getResponseHeader: Expose second Access-Control-Expose-Headers (x-second-expose)')
check_response_header(' x-custom-header', null, 'getResponseHeader: Don\'t trim whitespace')
    // The server returns header value "...", not "\xE2\x80\xA6".
// check_response_header('x-custom-header-bytes', "\xE2\x80\xA6", 'getResponseHeader: x-custom-header bytes')
    // Date is a forbidden response header name and can not be exposed.
    // https://fetch.spec.whatwg.org/#forbidden-header-name
// check_response_header('Date',
//     function(client, head) { assert_true(client.getResponseHeader(head).length > 2) },
//     'getResponseHeader: Exposed server field readable (Date)')

function default_readable(head, value) {
    check_response_header(head, value, 'getResponseHeader: '+head+': readable by default')
}
default_readable("Cache-Control", "no-cache");
default_readable("Content-Language", "nn");
default_readable("Expires", "Thu, 01 Dec 1994 16:00:00 GMT");
default_readable("Last-Modified", "Thu, 01 Dec 1994 10:00:00 GMT");
default_readable("Pragma", "no-cache");


function default_unreadable(head) {
    check_response_header(head, null, 'getResponseHeader: '+head+': unreadable by default')
}
default_unreadable("Server")
default_unreadable("X-Powered-By")


async_test("getResponseHeader: Combined testing of cors response headers")
.step(function()
{
    var client = new XMLHttpRequest();
    client.open("GET", CROSSDOMAIN + 'resources/cors-headers.asis')
    window.c=client;
    client.onreadystatechange = this.step_func(function()
    {
        if (client.readyState == 1)
        {
            assert_equals(client.getResponseHeader("x-custom-header"), null, 'x-custom-header')
        }
        if (client.readyState > 1)
        {
            assert_equals(client.getResponseHeader("x-custom-header"), "test, test", 'x-custom-header')
            assert_equals(client.getResponseHeader("x-custom-header-empty"), "", 'x-custom-header-empty')
            assert_equals(client.getResponseHeader("set-cookie"), null)
            assert_equals(client.getResponseHeader("set-cookie2"), null)
            assert_equals(client.getResponseHeader("x-non-existent-header"), null)
            assert_equals(client.getResponseHeader("x-nonexposed"), null)
        }
        if (client.readyState == 4)
        {
            this.done()
        }
    })
    client.send()
})
async_test(function() {
        var client = new XMLHttpRequest()
        client.open('GET', CROSSDOMAIN + 'resources/cors-headers.asis', true)
        client.onerror = this.step_func(function() {
             assert_unreached("response error")
        })
        client.onload = this.step_func(function(e) {
            if (typeof value === 'function')
                value(client, head)
            else
                assert_equals(client.getResponseHeader(head), value, head)
            this.done()})
        client.send()
    }, desc)
async_test(function() {
    var client = new XMLHttpRequest()
    client.open('GET', CROSSDOMAIN + 'resources/cors-headers.asis', true)
    client.onerror = this.step_func(function() {
         assert_unreached("response error")
    })
    client.onload = this.step_func(function(e){
        assert_equals(client.getResponseHeader("x-custom-header"), "test, test", 'x-custom-header')
        assert_equals(client.getResponseHeader("x-nonexposed"), null, 'x-nonexposed')
        this.done()
    })
    client.send(null)
}, "getResponse: don't expose x-nonexposed")

async_test(function() {

    var client = new XMLHttpRequest()
    client.open('GET', CROSSDOMAIN + 'resources/cors-headers.asis', true)
    client.onerror = this.step_func(function() {
         assert_unreached("response error")
    })
    client.onload = this.step_func(function(e){
        h = client.getAllResponseHeaders().toLowerCase()
        assert_true( h.indexOf('x-custom-header') >= 0, 'x-custom-header present')
        assert_true( h.indexOf('x-nonexposed') === -1, 'x-nonexposed not present')
        this.done()
    })
    client.send(null)
}, "getAllResponseHeaders: don't expose x-nonexposed")

</script>