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phorge/src/aphront/response/AphrontFileResponse.php
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AphrontFileResponse.php
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<?php
final class AphrontFileResponse extends AphrontResponse {
private $content;
private $contentIterator;
private $contentLength;
private $compressResponse;
private $mimeType;
/**
* Download filename
*
* This is NULL as default or a string.
*
* @var string|null
*/
private $download;
private $rangeMin;
private $rangeMax;
private $allowOrigins = array();
public function addAllowOrigin($origin) {
$this->allowOrigins[] = $origin;
return $this;
}
/**
* Set a download filename
*
* @param string $download
* @return self
*/
public function setDownload($download) {
// Make sure we have a populated string
if (!phutil_nonempty_string($download)) {
$download = 'untitled';
}
$this->download = $download;
return $this;
}
/**
* Get the download filename
*
* If this was never set, NULL is given.
*
* @return string|null
*/
public function getDownload() {
return $this->download;
}
public function setMimeType($mime_type) {
$this->mimeType = $mime_type;
return $this;
}
public function getMimeType() {
return $this->mimeType;
}
public function setContent($content) {
$this->setContentLength(strlen($content));
$this->content = $content;
return $this;
}
public function setContentIterator($iterator) {
$this->contentIterator = $iterator;
return $this;
}
public function buildResponseString() {
return $this->content;
}
public function getContentIterator() {
if ($this->contentIterator) {
return $this->contentIterator;
}
return parent::getContentIterator();
}
public function setContentLength($length) {
$this->contentLength = $length;
return $this;
}
public function getContentLength() {
return $this->contentLength;
}
public function setCompressResponse($compress_response) {
$this->compressResponse = $compress_response;
return $this;
}
public function getCompressResponse() {
return $this->compressResponse;
}
public function setRange($min, $max) {
$this->rangeMin = $min;
$this->rangeMax = $max;
return $this;
}
public function getHeaders() {
$headers = array(
array('Content-Type', $this->getMimeType()),
// This tells clients that we can support requests with a "Range" header,
// which allows downloads to be resumed, in some browsers, some of the
// time, if the stars align.
array('Accept-Ranges', 'bytes'),
);
if ($this->rangeMin !== null || $this->rangeMax !== null) {
$len = $this->getContentLength();
$min = $this->rangeMin;
$max = $this->rangeMax;
if ($max === null) {
$max = ($len - 1);
}
$headers[] = array('Content-Range', "bytes {$min}-{$max}/{$len}");
$content_len = ($max - $min) + 1;
} else {
$content_len = $this->getContentLength();
}
if (!$this->shouldCompressResponse()) {
$headers[] = array('Content-Length', $content_len);
}
if (phutil_nonempty_string($this->getDownload())) {
$headers[] = array('X-Download-Options', 'noopen');
$filename = $this->getDownload();
$filename = addcslashes($filename, '"\\');
$headers[] = array(
'Content-Disposition',
'attachment; filename="'.$filename.'"',
);
}
if ($this->allowOrigins) {
$headers[] = array(
'Access-Control-Allow-Origin',
implode(',', $this->allowOrigins),
);
}
$headers = array_merge(parent::getHeaders(), $headers);
return $headers;
}
protected function shouldCompressResponse() {
return $this->getCompressResponse();
}
public function parseHTTPRange($range) {
$begin = null;
$end = null;
$matches = null;
if (preg_match('/^bytes=(\d+)-(\d*)$/', $range, $matches)) {
// Note that the "Range" header specifies bytes differently than
// we do internally: the range 0-1 has 2 bytes (byte 0 and byte 1).
$begin = (int)$matches[1];
// The "Range" may be "200-299" or "200-", meaning "until end of file".
if (strlen($matches[2])) {
$range_end = (int)$matches[2];
$end = $range_end + 1;
} else {
$range_end = null;
}
$this->setHTTPResponseCode(206);
$this->setRange($begin, $range_end);
}
return array($begin, $end);
}
}

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