/**
* Parses a response body into a PHP object if appropriate.
*
* @param CFResponse|string $response (Required) The <CFResponse> object to parse, or an XML string that would otherwise be a response body.
* @param string $content_type (Optional) The content-type to use when determining how to parse the content.
* @return CFResponse|string A parsed <CFResponse> object, or parsed XML.
*/
public function parse_callback($response, $headers = null)
{
// Shorten this so we have a (mostly) single code path
if (isset($response->body)) {
if (is_string($response->body)) {
$body = $response->body;
} else {
return $response;
}
} elseif (is_string($response)) {
$body = $response;
} else {
return $response;
}
// Decompress gzipped content
if (isset($headers['content-encoding'])) {
switch (strtolower(trim($headers['content-encoding'], "\t\n\r "))) {
case 'gzip':
case 'x-gzip':
if (strpos($headers['_info']['url'], 'monitoring.') !== false) {
// CloudWatch incorrectly uses the deflate algorithm when they say gzip.
if (($uncompressed = gzuncompress($body)) !== false) {
$body = $uncompressed;
} elseif (($uncompressed = gzinflate($body)) !== false) {
$body = $uncompressed;
}
break;
} else {
// Everyone else uses gzip correctly.
$decoder = new CFGzipDecode($body);
if ($decoder->parse()) {
$body = $decoder->data;
}
break;
}
case 'deflate':
if (strpos($headers['_info']['url'], 'monitoring.') !== false) {
// CloudWatch incorrectly does nothing when they say deflate.
continue;
} else {
// Everyone else uses deflate correctly.
if (($uncompressed = gzuncompress($body)) !== false) {
$body = $uncompressed;
} elseif (($uncompressed = gzinflate($body)) !== false) {
$body = $uncompressed;
}
}
break;
}
}
// Look for XML cues
if (isset($headers['content-type']) && ($headers['content-type'] === 'text/xml' || $headers['content-type'] === 'application/xml') || (!isset($headers['content-type']) && (stripos($body, '<?xml') === 0 || strpos($body, '<Error>') === 0) || preg_match('/^<(\\w*) xmlns="http(s?):\\/\\/(\\w*).amazon(aws)?.com/im', $body))) {
// Strip the default XML namespace to simplify XPath expressions
$body = str_replace("xmlns=", "ns=", $body);
// Parse the XML body
$body = new $this->parser_class($body);
} elseif (isset($headers['content-type']) && $headers['content-type'] === 'application/json' || !isset($headers['content-type']) && $this->util->is_json($body)) {
// Normalize JSON to a CFSimpleXML object
$body = CFJSON::to_xml($body);
}
// Put the parsed data back where it goes
if (isset($response->body)) {
$response->body = $body;
} else {
$response = $body;
}
return $response;
}
/**
* Parses a response body into a PHP object if appropriate.
*
* @param CFResponse|string $response (Required) The <CFResponse> object to parse, or an XML string that would otherwise be a response body.
* @param string $content_type (Optional) The content-type to use when determining how to parse the content.
* @return CFResponse|string A parsed <CFResponse> object, or parsed XML.
*/
public function parse_callback($response, $headers = null)
{
// Bail out
if (!$this->parse_the_response) {
return $response;
}
// Shorten this so we have a (mostly) single code path
if (isset($response->body)) {
if (is_string($response->body)) {
$body = $response->body;
} else {
return $response;
}
} elseif (is_string($response)) {
$body = $response;
} else {
return $response;
}
// Decompress gzipped content
if (isset($headers['content-encoding'])) {
switch (strtolower(trim($headers['content-encoding'], "\t\n\r "))) {
case 'gzip':
case 'x-gzip':
$decoder = new CFGzipDecode($body);
if ($decoder->parse()) {
$body = $decoder->data;
}
break;
case 'deflate':
if (($uncompressed = gzuncompress($body)) !== false) {
$body = $uncompressed;
} elseif (($uncompressed = gzinflate($body)) !== false) {
$body = $uncompressed;
}
break;
}
}
// Look for XML cues
if (isset($headers['content-type']) && ($headers['content-type'] === 'text/xml' || $headers['content-type'] === 'application/xml') || (!isset($headers['content-type']) && (stripos($body, '<?xml') === 0 || strpos($body, '<Error>') === 0) || preg_match('/^<(\\w*) xmlns="http(s?):\\/\\/(\\w*).amazon(aws)?.com/im', $body))) {
// Strip the default XML namespace to simplify XPath expressions
$body = str_replace("xmlns=", "ns=", $body);
try {
// Parse the XML body
$body = new $this->parser_class($body);
} catch (Exception $e) {
throw new Parser_Exception($e->getMessage());
}
} elseif (isset($headers['content-type']) && $headers['content-type'] === 'application/json' || $headers['content-type'] === 'application/x-amz-json-1.0' || !isset($headers['content-type']) && $this->util->is_json($body)) {
// Normalize JSON to a CFSimpleXML object
$body = CFJSON::to_xml($body, $this->parser_class);
}
// Put the parsed data back where it goes
if (isset($response->body)) {
$response->body = $body;
} else {
$response = $body;
}
return $response;
}