public function checkHttpCache($httpCacheConf)
{
$httpCacheObj = new HttpCache();
$httpCacheConf = $httpCacheObj->checkCacheConf($httpCacheConf, $this->actionData);
if (!empty($httpCacheConf)) {
$httpCacheObj->checkHttpCache($httpCacheConf);
}
}
function render()
{
// call the render method in the main view class... it will take care of sending the headers
// for us and so on...
parent::render();
// if there is no resource to send... then we can quit right away!
if ($this->_resource == null) {
return;
}
// let's see if we really need to send some data or not...
// send also some headers that will help caching, if configured to do so
$config =& Config::getConfig();
$useCaching = $config->getValue('resource_server_http_cache_enabled');
if ($useCaching) {
// send the "Last-Modified" header
$resDate = $this->_resource->getTimestamp();
$lastModified = $resDate->getDate(DATE_FORMAT_UNIXTIME);
$cacheLifetime = $config->getValue('resource_server_http_cache_lifetime', DEFAULT_HTTP_CACHE_LIFETIME);
// check if we have to resent the data and if not, then we're done!
if (HttpCache::httpConditional($lastModified, $cacheLifetime)) {
exit;
}
}
// if we need to send something, then let's do it now and finish
if ($this->_mode == RESOURCE_VIEW_MODE_PREVIEW) {
print $this->_resource->getPreview();
} elseif ($this->_mode == RESOURCE_VIEW_MODE_MEDIUM) {
print $this->_resource->getMediumSizePreview();
} else {
while ($chunk =& $this->_resource->getDataChunk(RESOURCE_DEFAULT_CHUNK_SIZE)) {
echo $chunk;
}
}
return true;
}
function http_end($content)
{
// 没有http-code默认给个
if (!isset(HttpCache::$header['Http-Code'])) {
$header = "HTTP/1.1 200 OK\r\n";
} else {
$header = HttpCache::$header['Http-Code'] . "\r\n";
unset(HttpCache::$header['Http-Code']);
}
// 没有Content-Type默认给个
if (!isset(HttpCache::$header['Content-Type'])) {
$header .= "Content-Type: text/html;charset=utf-8\r\n";
}
// 其它header
foreach (HttpCache::$header as $key => $item) {
if ('Set-Cookie' == $key && is_array($item)) {
foreach ($item as $it) {
$header .= $it . "\r\n";
}
} else {
$header .= $item . "\r\n";
}
}
// header
$header .= "Server: WorkerMan/2.1\r\nContent-Length: " . strlen($content) . "\r\n";
$header .= "\r\n";
HttpCache::$header = array();
// 保存cookie
session_write_close();
$_POST = $_GET = $_COOKIE = $_REQUEST = $_SESSION = array();
$GLOBALS['HTTP_RAW_POST_DATA'] = '';
HttpCache::$instance = null;
// 整个http包
return $header . $content;
}
function render()
{
// set the view character set based on the default locale
$this->_getLocale();
$this->setCharset($this->_locale->getCharset());
$sendOutput = true;
// check if support for conditional HTTP requests is enabled
$config =& Config::getConfig();
if ($config->getValue("template_http_cache_enabled")) {
// some debug information
$timestamp = $this->_template->getCreationTimestamp();
// and now send the correct headers
if (HttpCache::httpConditional($timestamp, $this->getCacheTimeSeconds())) {
$sendOutput = false;
}
header("Last-Modified: " . gmdate('D, d M Y H:i:s', $timestamp) . ' GMT');
} else {
$sendOutput = true;
}
if ($sendOutput) {
View::render();
$this->sendUncachedOutput();
}
}
/**
* Renders the view using the Smarty template object that we created in the constructor. This method
* sends data to the client so it should be called as the last bit of code in our custom classes
* extending SmartyView.
*
* It has no paramaters and returns nothing.
*/
function render()
{
// the View class also needs to do some things...
parent::render();
$sendOutput = true;
// check if plog is configured to use conditional http headers and stuff like
// that... Also, use the HttpCache class to determine whether we should send the
// content or not
if ($this->isTemplateHttpCacheEnabled() && $this->isCached()) {
// some debug information
$timestamp = $this->_template->getCreationTimestamp();
// and now send the correct headers
if (HttpCache::httpConditional($timestamp, $this->getCacheTimeSeconds())) {
$sendOutput = false;
}
$header = "Last-Modified: " . gmdate('D, d M Y H:i:s', $timestamp) . ' GMT';
header($header);
} else {
// send the results if needed
$sendOutput = true;
}
if ($sendOutput) {
// pass all the values to the template object
$this->_template->assign($this->_params->getAsArray());
// and finally send the contents of the template
print $this->_template->fetch($this->getSmartyViewId());
}
}