/**
* Tests the WordPress HTTP objects for an object to use and returns it.
*
* Tests all of the objects and returns the object that passes. Also caches
* that object to be used later. This is for posting content to a URL and
* is used when there is a body. The plain Fopen Transport can not be used
* to send content, but the streams transport can. This is a limitation that
* is addressed here, by just not including that transport.
*
* @since 2.7.0
* @access private
*
* @param array $args Request args, default us an empty array
* @return object|null Null if no transports are available, HTTP transport object.
*/
function &_postTransport($args = array())
{
static $working_transport, $blocking_transport, $nonblocking_transport;
if (is_null($working_transport)) {
if (true === WP_Http_ExtHttp::test($args)) {
$working_transport['exthttp'] = new WP_Http_ExtHttp();
$blocking_transport[] =& $working_transport['exthttp'];
} else {
if (true === WP_Http_Curl::test($args)) {
$working_transport['curl'] = new WP_Http_Curl();
$blocking_transport[] =& $working_transport['curl'];
} else {
if (true === WP_Http_Streams::test($args)) {
$working_transport['streams'] = new WP_Http_Streams();
$blocking_transport[] =& $working_transport['streams'];
} else {
if (true === WP_Http_Fsockopen::test($args)) {
$working_transport['fsockopen'] = new WP_Http_Fsockopen();
$blocking_transport[] =& $working_transport['fsockopen'];
}
}
}
}
foreach (array('curl', 'streams', 'fsockopen', 'exthttp') as $transport) {
if (isset($working_transport[$transport])) {
$nonblocking_transport[] =& $working_transport[$transport];
}
}
}
do_action('http_transport_post_debug', $working_transport, $blocking_transport, $nonblocking_transport);
if (isset($args['blocking']) && !$args['blocking']) {
return $nonblocking_transport;
} else {
return $blocking_transport;
}
}
/**
* Perform a HEAD request to the specified URL.
*
* Note :
*
* Since the MediaFire checker works by parsing the "Location" header, redirect following
* _must_ be disabled. This can become a problem on servers where WP is forced to fall back
* on using WP_Http_Fopen which ignores the 'redirection' flag. WP_Http_Fsockopen would work,
* but it has the lowest priority of all transports.
*
* Alas, there is no way to reliably influence which transport is chosen - the WP_Http::_getTransport
* function caches the available choices, so plugins can disable individual transports only during
* its first run. Therefore, we must pick the best transport manually.
*
* @param string $url
* @return array|WP_Error
*/
function head($url)
{
//Only consider transports that allow redirection to be disabled.
$args = array();
if (class_exists('WP_Http_ExtHttp') && true === WP_Http_ExtHttp::test($args)) {
$transport = new WP_Http_ExtHttp();
} else {
if (class_exists('WP_Http_Curl') && true === WP_Http_Curl::test($args)) {
$transport = new WP_Http_Curl();
} else {
if (class_exists('WP_Http_Curl') && true === WP_Http_Fsockopen::test($args)) {
$transport = new WP_Http_Fsockopen();
} else {
return new WP_Error('no_suitable_transport', "No suitable HTTP transport found. Please upgrade to a more recent version of PHP or install the CURL extension.");
}
}
}
$conf = blc_get_configuration();
$args = array('timeout' => $conf->options['timeout'], 'redirection' => 0, 'method' => 'HEAD');
return $transport->request($url, $args);
}
/**
* Update the Images get them from Server and check for existance on each image
* @since: 5.0.5
*/
private function _update_images()
{
$templates = get_option('rs-templates', array());
$curl = new WP_Http_Curl();
if (!$curl->test()) {
$curl = false;
}
$connection = 0;
$reload = array();
if (!empty($templates) && is_array($templates)) {
$upload_dir = wp_upload_dir();
// Set upload folder
if (!empty($templates['slider']) && is_array($templates['slider'])) {
foreach ($templates['slider'] as $key => $temp) {
if ($connection > 3) {
continue;
}
//cant connect to server
// Check folder permission and define file location
if (wp_mkdir_p($upload_dir['basedir'] . $this->templates_path)) {
$file = $upload_dir['basedir'] . $this->templates_path . '/' . $temp['img'];
$file_plugin = RS_PLUGIN_PATH . $this->templates_path_plugin . '/' . $temp['img'];
if (!file_exists($file) && !file_exists($file_plugin) || isset($temp['push_image'])) {
if ($curl !== false) {
$image_data = @$curl->request($this->templates_url . $this->templates_server_path . $temp['img']);
// Get image data
if (isset($image_data['body']) && isset($image_data['response']) && isset($image_data['response']['code']) && $image_data['response']['code'] == '200') {
$image_data = $image_data['body'];
} else {
$image_data = false;
}
} else {
$image_data = @file_get_contents($this->templates_url . $this->templates_server_path . $temp['img']);
// Get image data
}
if ($image_data !== false) {
$reload[$temp['alias']] = true;
unset($templates['slider'][$key]['push_image']);
@mkdir(dirname($file));
@file_put_contents($file, $image_data);
} else {
//could not connect to server
$connection++;
}
} else {
//use default image
}
} else {
//use default images
}
}
}
if (!empty($templates['slides']) && is_array($templates['slides'])) {
foreach ($templates['slides'] as $key => $temp) {
foreach ($temp as $k => $tvalues) {
if ($connection > 3) {
continue;
}
//cant connect to server
// Check folder permission and define file location
if (wp_mkdir_p($upload_dir['basedir'] . $this->templates_path)) {
$file = $upload_dir['basedir'] . $this->templates_path . '/' . $tvalues['img'];
$file_plugin = RS_PLUGIN_PATH . $this->templates_path_plugin . '/' . $tvalues['img'];
if (!file_exists($file) && !file_exists($file_plugin) || isset($reload[$key])) {
//update, so load again
if ($curl !== false) {
$image_data = @$curl->request($this->templates_url . $this->templates_server_path . $tvalues['img']);
// Get image data
if (isset($image_data['body']) && isset($image_data['response']) && isset($image_data['response']['code']) && $image_data['response']['code'] == '200') {
$image_data = $image_data['body'];
} else {
$image_data = false;
}
} else {
$image_data = @file_get_contents($this->templates_url . $this->templates_server_path . $tvalues['img']);
// Get image data
}
if ($image_data !== false) {
@mkdir(dirname($file));
@file_put_contents($file, $image_data);
} else {
//could not connect to server
$connection++;
}
} else {
//use default image
}
} else {
//use default images
}
}
}
}
}
if ($connection > 3) {
//set value that the server cant be contacted
}
RevSliderFunctionsWP::update_option('rs-templates', $templates, false);
//remove the push_image
}
/**
* Tests the WordPress HTTP objects for an object to use and returns it.
*
* Tests all of the objects and returns the object that passes. Also caches
* that object to be used later.
*
* The order for the GET/HEAD requests are Streams, HTTP Extension, Fopen,
* and finally Fsockopen. fsockopen() is used last, because it has the most
* overhead in its implementation. There isn't any real way around it, since
* redirects have to be supported, much the same way the other transports
* also handle redirects.
*
* There are currently issues with "localhost" not resolving correctly with
* DNS. This may cause an error "failed to open stream: A connection attempt
* failed because the connected party did not properly respond after a
* period of time, or established connection failed because connected host
* has failed to respond."
*
* @since 2.7.0
* @access private
*
* @param array $args Request args, default us an empty array
* @return object|null Null if no transports are available, HTTP transport object.
*/
function &_getTransport($args = array())
{
static $working_transport, $blocking_transport, $nonblocking_transport;
if (is_null($working_transport)) {
if (true === WP_Http_ExtHttp::test() && apply_filters('use_http_extension_transport', true)) {
$working_transport['exthttp'] = new WP_Http_ExtHttp();
$blocking_transport[] =& $working_transport['exthttp'];
} else {
if (true === WP_Http_Curl::test() && apply_filters('use_curl_transport', true)) {
$working_transport['curl'] = new WP_Http_Curl();
$blocking_transport[] =& $working_transport['curl'];
} else {
if (true === WP_Http_Streams::test() && apply_filters('use_streams_transport', true)) {
$working_transport['streams'] = new WP_Http_Streams();
$blocking_transport[] =& $working_transport['streams'];
} else {
if (true === WP_Http_Fopen::test() && apply_filters('use_fopen_transport', true)) {
$working_transport['fopen'] = new WP_Http_Fopen();
$blocking_transport[] =& $working_transport['fopen'];
} else {
if (true === WP_Http_Fsockopen::test() && apply_filters('use_fsockopen_transport', true)) {
$working_transport['fsockopen'] = new WP_Http_Fsockopen();
$blocking_transport[] =& $working_transport['fsockopen'];
}
}
}
}
}
foreach (array('curl', 'streams', 'fopen', 'fsockopen', 'exthttp') as $transport) {
if (isset($working_transport[$transport])) {
$nonblocking_transport[] =& $working_transport[$transport];
}
}
}
if (has_filter('http_transport_get_debug')) {
do_action('http_transport_get_debug', $working_transport, $blocking_transport, $nonblocking_transport);
}
if (isset($args['blocking']) && !$args['blocking']) {
return $nonblocking_transport;
} else {
return $blocking_transport;
}
}
function have_curl($args, $url = NULL)
{
return WP_Http_Curl::test($args);
}
