function content_negociation()
{
//return var_dump($_SERVER['HTTP_ACCEPT']);
if (request_accepts('json')) {
return "json";
} else {
if (request_accepts('html')) {
return "<h1>HTML</h1>";
} else {
return 'Oops';
}
}
}
function test_request_accepts()
{
$env = env();
$env['SERVER']['HTTP_ACCEPT'] = null;
assert_true(request_accepts('text/plain'));
$env['SERVER']['HTTP_ACCEPT'] = 'text/html';
assert_true(request_accepts('html'));
$env['SERVER']['HTTP_ACCEPT'] = 'text/*; application/json';
assert_true(request_accepts('html'));
assert_true(request_accepts('text/html'));
assert_true(request_accepts('text/plain'));
assert_true(request_accepts('application/json'));
assert_false(request_accepts('image/png'));
assert_false(request_accepts('png'));
assert_true(defined('TESTS_DOC_ROOT'), "Undefined 'TESTS_DOC_ROOT' constant");
$response = test_request(TESTS_DOC_ROOT . '05-content_negociation.php', 'GET', false, array(), array("Accept: image/png"));
assert_equal("Oops", $response);
$response = test_request(TESTS_DOC_ROOT . '05-content_negociation.php', 'GET', false, array(), array("Accept: text/html"));
assert_equal("<h1>HTML</h1>", $response);
$response = test_request(TESTS_DOC_ROOT . '05-content_negociation.php', 'GET', false, array(), array("Accept: application/json"));
assert_equal("json", $response);
}
function responds_with($env = null)
{
if (is_null($env)) {
$env = env();
}
$request_uri = request_uri();
$userAgent = $_SERVER['HTTP_USER_AGENT'];
//return the HTML page for Facebook
if (strpos($userAgent, "facebookexternalhit") > -1) {
return 'html';
}
//return the type if specified in the URL (/foo/bar.png returns png no matter what the header specifies)
if (sizeof(explode('.', $request_uri)) >= 2) {
return array_pop(explode('.', $request_uri));
} else {
if (request_accepts('json')) {
return 'json';
} else {
return 'html';
}
}
}