/**
* Prepares the start of an AJAX output.
*/
public function header() {
// unfortunately YUI iframe upload does not support application/json
if (!empty($_FILES)) {
@header('Content-type: text/plain; charset=utf-8');
if (!core_useragent::supports_json_contenttype()) {
@header('X-Content-Type-Options: nosniff');
}
} else if (!core_useragent::supports_json_contenttype()) {
@header('Content-type: text/plain; charset=utf-8');
@header('X-Content-Type-Options: nosniff');
} else {
@header('Content-type: application/json; charset=utf-8');
}
// Headers to make it not cacheable and json
@header('Cache-Control: no-store, no-cache, must-revalidate');
@header('Cache-Control: post-check=0, pre-check=0', false);
@header('Pragma: no-cache');
@header('Expires: Mon, 20 Aug 1969 09:23:00 GMT');
@header('Last-Modified: ' . gmdate('D, d M Y H:i:s') . ' GMT');
@header('Accept-Ranges: none');
}
define('NO_MOODLE_COOKIES', false);
}
}
}
}
}
// Start session and prepare global $SESSION, $USER.
if (empty($CFG->sessiontimeout)) {
$CFG->sessiontimeout = 7200;
}
\core\session\manager::start();
// Set default content type and encoding, developers are still required to use
// echo $OUTPUT->header() everywhere, anything that gets set later should override these headers.
// This is intended to mitigate some security problems.
if (AJAX_SCRIPT) {
if (!core_useragent::supports_json_contenttype()) {
// Some bloody old IE.
@header('Content-type: text/plain; charset=utf-8');
@header('X-Content-Type-Options: nosniff');
} else {
if (!empty($_FILES)) {
// Some ajax code may have problems with json and file uploads.
@header('Content-type: text/plain; charset=utf-8');
} else {
@header('Content-type: application/json; charset=utf-8');
}
}
} else {
if (!CLI_SCRIPT) {
@header('Content-type: text/html; charset=utf-8');
}
/**
* @dataProvider user_agents_providers
*/
public function test_useragent_supports($useragent, $tests)
{
// Setup the core_useragent instance.
core_useragent::instance(true, $useragent);
// Supports SVG.
if (!isset($tests['supports_svg']) || $tests['supports_svg']) {
$this->assertTrue(core_useragent::supports_svg(), "SVG Support was not reported (and should have been)");
} else {
$this->assertFalse(core_useragent::supports_svg(), "SVG Support was reported (and should not have been)");
}
// Supports JSON ContentType.
if (!isset($tests['supports_json_contenttype']) || $tests['supports_json_contenttype']) {
$this->assertTrue(core_useragent::supports_json_contenttype(), "JSON ContentType Support was not reported (and should have been)");
} else {
$this->assertFalse(core_useragent::supports_json_contenttype(), "JSON ContentType Support was reported (and should not have been)");
}
}
