/**
* Calculate a hash of a Stream
*
* @param StreamInterface $stream Stream to calculate the hash for
* @param string $algo Hash algorithm (e.g. md5, crc32, etc)
* @param bool $rawOutput Whether or not to use raw output
*
* @return bool|string Returns false on failure or a hash string on success
*/
public static function getHash(StreamInterface $stream, $algo, $rawOutput = false)
{
$pos = $stream->ftell();
if (!$stream->seek(0)) {
return false;
}
$ctx = hash_init($algo);
while ($data = $stream->read(8192)) {
hash_update($ctx, $data);
}
$out = hash_final($ctx, (bool) $rawOutput);
$stream->seek($pos);
return $out;
}
/**
* Send HTTP response headers and body
*
* @return \Slim\Interfaces\Http\Response Self
* @api
*/
public function send()
{
// Send headers
if (headers_sent() === false) {
if (strpos(PHP_SAPI, 'cgi') === 0) {
header(sprintf('Status: %s', $this->getReasonPhrase()));
} else {
header(sprintf('%s %s', $this->getProtocolVersion(), $this->getReasonPhrase()));
}
foreach ($this->headers as $name => $value) {
foreach ($value as $hVal) {
header("{$name}: {$hVal}", false);
}
}
}
// Send body
$this->body->seek(0);
while ($this->body->feof() === false) {
echo $this->body->read(1024);
}
return $this;
}
/**
* Process response headers
*
* @param StreamInterface $stream
*/
protected function processResponseHeaders(StreamInterface $stream)
{
// Set the size on the stream if it was returned in the response
foreach ($this->lastResponseHeaders as $header) {
if (($pos = stripos($header, 'Content-Length:')) === 0) {
$stream->setSize(trim(substr($header, 15)));
}
}
}
/**
* {@inheritdoc}
*/
protected function doGetContents()
{
return stream_get_contents($this->stream->getStream());
}
/**
* @param StreamInterface $stream
* @param MailchimpExport_DataCallbackInterface $dataCallable
* @throws MailchimpExport_Exception
*/
protected function readFromStream(StreamInterface $stream, MailchimpExport_DataCallbackInterface $dataCallable)
{
$headings = null;
$first = true;
$hasHeadingRow = $dataCallable->hasHeadingRow();
// Read until the stream is closed
while (!$stream->feof()) {
// Read a line from the stream
$currentRow = trim($stream->readLine());
if (strlen($currentRow) == 0) {
continue;
}
$currentDataSet = json_decode($currentRow, true);
if (!$currentDataSet) {
throw new \MailchimpExport_Exception('invalid response: ' . $currentRow);
}
$currentRow = null;
// check for errors
if (isset($currentDataSet['error']) && isset($currentDataSet['code'])) {
throw new \MailchimpExport_Exception($currentDataSet['error'], $currentDataSet['code']);
}
if ($first && $hasHeadingRow) {
$headings = $currentDataSet;
$first = false;
continue;
}
// if we have headings => combine them with the dataset
if ($headings !== null) {
// Sometimes mailchimps gives an smaller array of data because of missing data.
// This will cause an error in array_column
while (count($headings) > count($currentDataSet)) {
$currentDataSet[] = null;
}
$returnValue = array_combine($headings, $currentDataSet);
} else {
$returnValue = $currentDataSet;
}
$dataCallable->addDataSet($returnValue);
$returnValue = null;
$currentDataSet = null;
}
}
protected function processResponseHeaders(StreamInterface $stream)
{
foreach ($this->lastResponseHeaders as $header) {
if (stripos($header, 'Content-Length:') === 0) {
$stream->setSize(trim(substr($header, 15)));
}
}
}
/**
* Constructor
*
* @param \Slim\Interfaces\EnvironmentInterface $env
* @param \Slim\Interfaces\Http\HeadersInterface $headers
* @param \Slim\Interfaces\Http\CookiesInterface $cookies
* @param string $body
* @api
*/
public function __construct(EnvironmentInterface $env, HeadersInterface $headers, CookiesInterface $cookies, $body = null)
{
$this->env = $env;
$this->headers = $headers;
$this->cookies = $cookies;
$this->bodyRaw = new \Guzzle\Stream\Stream(fopen('php://temp', 'r+'));
if (is_string($body) === true) {
$this->bodyRaw->write($body);
}
$this->bodyRaw->seek(0);
}
