function send($content = null)
{
if (empty($this->url)) {
return false;
}
if (!is_null($content)) {
$this->content = $content;
}
$request = @parse_url($this->url);
for ($trial = 0; $trial < 5; $trial++) {
unset($this->_response);
if (empty($request['scheme']) || $request['scheme'] != 'http' || empty($request['host'])) {
return false;
}
if (empty($request['port'])) {
$request['port'] = 80;
}
if (empty($request['path'])) {
$request['path'] = '/';
}
if (!($socket = @fsockopen($request['host'], $request['port'], $errno, $errstr, $this->timeout))) {
return false;
}
$path = empty($request['query']) ? $request['path'] : $request['path'] . '?' . $request['query'];
fwrite($socket, $this->method . ' ' . $path . " HTTP/1.1\r\n");
fwrite($socket, 'Host: ' . $request['host'] . "\r\n");
fwrite($socket, "User-Agent: Mozilla/4.0 (compatible; Textcube " . TEXTCUBE_VERSION . ")\r\n");
fwrite($socket, "Accept-Encoding: identity\r\n");
if (!is_null($this->referer)) {
fwrite($socket, "Referer: {$this->referer}\r\n");
}
if (!is_null($this->eTag)) {
fwrite($socket, "If-None-Match: {$this->eTag}\r\n");
}
if (!is_null($this->lastModified)) {
if (is_numeric($this->lastModified)) {
$this->lastModified = Timestamp::getRFC1123GMT($this->lastModified);
}
fwrite($socket, "If-Modified-Since: {$this->lastModified}\r\n");
}
if (!empty($this->content)) {
fwrite($socket, "Content-Type: {$this->contentType}\r\n");
fwrite($socket, "Content-Length: " . strlen($this->content) . "\r\n");
}
fwrite($socket, "Connection: close\r\n");
fwrite($socket, "\r\n");
if ($this->content !== false) {
fwrite($socket, $this->content);
}
if ($this->async) {
return true;
}
for (; $trial < 5; $trial++) {
if (!($line = fgets($socket))) {
fclose($socket);
return false;
}
if (!preg_match('@^HTTP/([0-9\\.]+)[ \\t]+([0-9]+)[ \\t]+@', $line, $match)) {
fclose($socket);
return false;
}
$this->_response['version'] = $match[1];
$this->_response['status'] = $match[2];
while ($line = fgets($socket)) {
$line = rtrim($line);
if (empty($line)) {
break;
}
$header = explode(': ', $line, 2);
if (count($header) != 2) {
continue;
}
$header[0] = strtolower($header[0]);
switch ($header[0]) {
case 'connection':
case 'content-length':
case 'content-type':
case 'date':
case 'etag':
case 'last-modified':
case 'location':
case 'transfer-encoding':
case 'X-Pingback':
case 'X-CommunicationFeed':
$this->_response[$header[0]] = trim($header[1]);
break;
}
}
if ($this->_response['status'] != 100) {
break;
}
unset($this->_response);
}
if (in_array($this->_response['status'], array(300, 301, 302, 307))) {
fclose($socket);
if (empty($this->_response['location'])) {
return false;
}
$this->url = $this->_response['location'];
$request['path'] = '/';
foreach (parse_url($this->_response['location']) as $key => $value) {
$request[$key] = $value;
}
continue;
}
break;
}
switch ($this->_response['status']) {
case 200:
// OK
break;
case 300:
// Multiple Choices
// Multiple Choices
case 301:
// Moved Permanently
// Moved Permanently
case 302:
// Found
// Found
default:
fclose($socket);
return false;
case 304:
// Not Modified
if (is_null($this->eTag) && is_null($this->lastModified)) {
fclose($socket);
return false;
}
break;
}
if ($this->pathToSave) {
if (!($fp = fopen($this->pathToSave, 'wb+'))) {
fclose($socket);
return false;
}
if ($this->getResponseHeader('Transfer-Encoding') == 'chunked') {
while ($line = fgets($socket)) {
$chunkSize = hexdec(trim($line));
if ($chunkSize == 0) {
break;
}
$readBuffer = '';
while (strlen($readBuffer) < $chunkSize + 2) {
$readBuffer .= fread($socket, $chunkSize + 2 - strlen($readBuffer));
}
fwrite($fp, substr($readBuffer, 0, strlen($readBuffer) - 2));
}
} else {
if (!empty($this->_response['content-length'])) {
while (ftell($fp) < $this->_response['content-length']) {
fwrite($fp, fread($socket, 10240));
}
} else {
if (!empty($this->_response['content-type'])) {
while (!feof($socket)) {
fwrite($fp, fread($socket, 10240));
}
}
}
}
fclose($fp);
} else {
$this->responseText = '';
if ($this->getResponseHeader('Transfer-Encoding') == 'chunked') {
while ($line = fgets($socket)) {
$chunkSize = hexdec(trim($line));
if ($chunkSize == 0) {
break;
}
$readBuffer = '';
while (strlen($readBuffer) < $chunkSize + 2) {
$readBuffer .= fread($socket, $chunkSize + 2 - strlen($readBuffer));
}
$this->responseText .= substr($readBuffer, 0, strlen($readBuffer) - 2);
}
} else {
if (!empty($this->_response['content-length'])) {
while (strlen($this->responseText) < $this->_response['content-length']) {
$this->responseText .= fread($socket, $this->_response['content-length'] - strlen($this->responseText));
}
} else {
if (!empty($this->_response['content-type'])) {
while (!feof($socket)) {
$this->responseText .= fread($socket, 10240);
}
}
}
}
}
fclose($socket);
return true;
}
Respond::NotFoundPage();
}
if (!($attachment = getAttachmentByOnlyName($blogid, $suri['value']))) {
Respond::NotFoundPage();
}
$fp = fopen(__TEXTCUBE_ATTACH_DIR__ . "/{$blogid}/{$attachment['name']}", 'rb');
if (!$fp) {
Respond::NotFoundPage();
}
$fstat = fstat($fp);
if (!empty($_SERVER['HTTP_IF_MODIFIED_SINCE'])) {
$modifiedSince = strtotime($_SERVER['HTTP_IF_MODIFIED_SINCE']);
if ($modifiedSince && $modifiedSince >= $fstat['mtime']) {
fclose($fp);
header('HTTP/1.1 304 Not Modified');
header('Connection: close');
exit;
}
}
ini_set('zlib.output_compression', 'off');
header('Content-Disposition: attachment; filename="' . rawurlencode(Utils_Unicode::bring($attachment['label'])) . '"');
header('Content-Transfer-Encoding: binary');
header('Last-Modified: ' . Timestamp::getRFC1123GMT($fstat['mtime']));
header('Content-Length: ' . $fstat['size']);
header('Content-Type: ' . $attachment['mime']);
header('Cache-Control: private');
header('Pragma: no-cache');
header('Connection: close');
fpassthru($fp);
fclose($fp);
downloadAttachment($attachment['name']);
