Init Server Composer Components

This commit is contained in:
Eole 2016-01-21 10:29:26 +01:00
parent 35db27b0e6
commit a44cc1d2e3
177 changed files with 24745 additions and 0 deletions

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<?php
namespace GuzzleHttp\Handler;
use GuzzleHttp\Exception\RequestException;
use GuzzleHttp\Exception\ConnectException;
use GuzzleHttp\Promise\FulfilledPromise;
use GuzzleHttp\Promise\RejectedPromise;
use GuzzleHttp\Psr7;
use GuzzleHttp\Psr7\LazyOpenStream;
use GuzzleHttp\TransferStats;
use Psr\Http\Message\RequestInterface;
/**
* Creates curl resources from a request
*/
class CurlFactory implements CurlFactoryInterface
{
/** @var array */
private $handles;
/** @var int Total number of idle handles to keep in cache */
private $maxHandles;
/**
* @param int $maxHandles Maximum number of idle handles.
*/
public function __construct($maxHandles)
{
$this->maxHandles = $maxHandles;
}
public function create(RequestInterface $request, array $options)
{
if (isset($options['curl']['body_as_string'])) {
$options['_body_as_string'] = $options['curl']['body_as_string'];
unset($options['curl']['body_as_string']);
}
$easy = new EasyHandle;
$easy->request = $request;
$easy->options = $options;
$conf = $this->getDefaultConf($easy);
$this->applyMethod($easy, $conf);
$this->applyHandlerOptions($easy, $conf);
$this->applyHeaders($easy, $conf);
unset($conf['_headers']);
// Add handler options from the request configuration options
if (isset($options['curl'])) {
$conf = array_replace($conf, $options['curl']);
}
$conf[CURLOPT_HEADERFUNCTION] = $this->createHeaderFn($easy);
$easy->handle = $this->handles
? array_pop($this->handles)
: curl_init();
curl_setopt_array($easy->handle, $conf);
return $easy;
}
public function release(EasyHandle $easy)
{
$resource = $easy->handle;
unset($easy->handle);
if (count($this->handles) >= $this->maxHandles) {
curl_close($resource);
} else {
// Remove all callback functions as they can hold onto references
// and are not cleaned up by curl_reset. Using curl_setopt_array
// does not work for some reason, so removing each one
// individually.
curl_setopt($resource, CURLOPT_HEADERFUNCTION, null);
curl_setopt($resource, CURLOPT_READFUNCTION, null);
curl_setopt($resource, CURLOPT_WRITEFUNCTION, null);
curl_setopt($resource, CURLOPT_PROGRESSFUNCTION, null);
curl_reset($resource);
$this->handles[] = $resource;
}
}
/**
* Completes a cURL transaction, either returning a response promise or a
* rejected promise.
*
* @param callable $handler
* @param EasyHandle $easy
* @param CurlFactoryInterface $factory Dictates how the handle is released
*
* @return \GuzzleHttp\Promise\PromiseInterface
*/
public static function finish(
callable $handler,
EasyHandle $easy,
CurlFactoryInterface $factory
) {
if (isset($easy->options['on_stats'])) {
self::invokeStats($easy);
}
if (!$easy->response || $easy->errno) {
return self::finishError($handler, $easy, $factory);
}
// Return the response if it is present and there is no error.
$factory->release($easy);
// Rewind the body of the response if possible.
$body = $easy->response->getBody();
if ($body->isSeekable()) {
$body->rewind();
}
return new FulfilledPromise($easy->response);
}
private static function invokeStats(EasyHandle $easy)
{
$curlStats = curl_getinfo($easy->handle);
$stats = new TransferStats(
$easy->request,
$easy->response,
$curlStats['total_time'],
$easy->errno,
$curlStats
);
call_user_func($easy->options['on_stats'], $stats);
}
private static function finishError(
callable $handler,
EasyHandle $easy,
CurlFactoryInterface $factory
) {
// Get error information and release the handle to the factory.
$ctx = [
'errno' => $easy->errno,
'error' => curl_error($easy->handle),
] + curl_getinfo($easy->handle);
$factory->release($easy);
// Retry when nothing is present or when curl failed to rewind.
if (empty($easy->options['_err_message'])
&& (!$easy->errno || $easy->errno == 65)
) {
return self::retryFailedRewind($handler, $easy, $ctx);
}
return self::createRejection($easy, $ctx);
}
private static function createRejection(EasyHandle $easy, array $ctx)
{
static $connectionErrors = [
CURLE_OPERATION_TIMEOUTED => true,
CURLE_COULDNT_RESOLVE_HOST => true,
CURLE_COULDNT_CONNECT => true,
CURLE_SSL_CONNECT_ERROR => true,
CURLE_GOT_NOTHING => true,
];
// If an exception was encountered during the onHeaders event, then
// return a rejected promise that wraps that exception.
if ($easy->onHeadersException) {
return new RejectedPromise(
new RequestException(
'An error was encountered during the on_headers event',
$easy->request,
$easy->response,
$easy->onHeadersException,
$ctx
)
);
}
$message = sprintf(
'cURL error %s: %s (%s)',
$ctx['errno'],
$ctx['error'],
'see http://curl.haxx.se/libcurl/c/libcurl-errors.html'
);
// Create a connection exception if it was a specific error code.
$error = isset($connectionErrors[$easy->errno])
? new ConnectException($message, $easy->request, null, $ctx)
: new RequestException($message, $easy->request, $easy->response, null, $ctx);
return new RejectedPromise($error);
}
private function getDefaultConf(EasyHandle $easy)
{
$conf = [
'_headers' => $easy->request->getHeaders(),
CURLOPT_CUSTOMREQUEST => $easy->request->getMethod(),
CURLOPT_URL => (string) $easy->request->getUri(),
CURLOPT_RETURNTRANSFER => false,
CURLOPT_HEADER => false,
CURLOPT_CONNECTTIMEOUT => 150,
];
if (defined('CURLOPT_PROTOCOLS')) {
$conf[CURLOPT_PROTOCOLS] = CURLPROTO_HTTP | CURLPROTO_HTTPS;
}
$version = $easy->request->getProtocolVersion();
if ($version == 1.1) {
$conf[CURLOPT_HTTP_VERSION] = CURL_HTTP_VERSION_1_1;
} elseif ($version == 2.0) {
$conf[CURLOPT_HTTP_VERSION] = CURL_HTTP_VERSION_2_0;
} else {
$conf[CURLOPT_HTTP_VERSION] = CURL_HTTP_VERSION_1_0;
}
return $conf;
}
private function applyMethod(EasyHandle $easy, array &$conf)
{
$body = $easy->request->getBody();
$size = $body->getSize();
if ($size === null || $size > 0) {
$this->applyBody($easy->request, $easy->options, $conf);
return;
}
$method = $easy->request->getMethod();
if ($method === 'PUT' || $method === 'POST') {
// See http://tools.ietf.org/html/rfc7230#section-3.3.2
if (!$easy->request->hasHeader('Content-Length')) {
$conf[CURLOPT_HTTPHEADER][] = 'Content-Length: 0';
}
} elseif ($method === 'HEAD') {
$conf[CURLOPT_NOBODY] = true;
unset(
$conf[CURLOPT_WRITEFUNCTION],
$conf[CURLOPT_READFUNCTION],
$conf[CURLOPT_FILE],
$conf[CURLOPT_INFILE]
);
}
}
private function applyBody(RequestInterface $request, array $options, array &$conf)
{
$size = $request->hasHeader('Content-Length')
? (int) $request->getHeaderLine('Content-Length')
: null;
// Send the body as a string if the size is less than 1MB OR if the
// [curl][body_as_string] request value is set.
if (($size !== null && $size < 1000000) ||
!empty($options['_body_as_string'])
) {
$conf[CURLOPT_POSTFIELDS] = (string) $request->getBody();
// Don't duplicate the Content-Length header
$this->removeHeader('Content-Length', $conf);
$this->removeHeader('Transfer-Encoding', $conf);
} else {
$conf[CURLOPT_UPLOAD] = true;
if ($size !== null) {
$conf[CURLOPT_INFILESIZE] = $size;
$this->removeHeader('Content-Length', $conf);
}
$body = $request->getBody();
$conf[CURLOPT_READFUNCTION] = function ($ch, $fd, $length) use ($body) {
return $body->read($length);
};
}
// If the Expect header is not present, prevent curl from adding it
if (!$request->hasHeader('Expect')) {
$conf[CURLOPT_HTTPHEADER][] = 'Expect:';
}
// cURL sometimes adds a content-type by default. Prevent this.
if (!$request->hasHeader('Content-Type')) {
$conf[CURLOPT_HTTPHEADER][] = 'Content-Type:';
}
}
private function applyHeaders(EasyHandle $easy, array &$conf)
{
foreach ($conf['_headers'] as $name => $values) {
foreach ($values as $value) {
$conf[CURLOPT_HTTPHEADER][] = "$name: $value";
}
}
// Remove the Accept header if one was not set
if (!$easy->request->hasHeader('Accept')) {
$conf[CURLOPT_HTTPHEADER][] = 'Accept:';
}
}
/**
* Remove a header from the options array.
*
* @param string $name Case-insensitive header to remove
* @param array $options Array of options to modify
*/
private function removeHeader($name, array &$options)
{
foreach (array_keys($options['_headers']) as $key) {
if (!strcasecmp($key, $name)) {
unset($options['_headers'][$key]);
return;
}
}
}
private function applyHandlerOptions(EasyHandle $easy, array &$conf)
{
$options = $easy->options;
if (isset($options['verify'])) {
if ($options['verify'] === false) {
unset($conf[CURLOPT_CAINFO]);
$conf[CURLOPT_SSL_VERIFYHOST] = 0;
$conf[CURLOPT_SSL_VERIFYPEER] = false;
} else {
$conf[CURLOPT_SSL_VERIFYHOST] = 2;
$conf[CURLOPT_SSL_VERIFYPEER] = true;
if (is_string($options['verify'])) {
$conf[CURLOPT_CAINFO] = $options['verify'];
if (!file_exists($options['verify'])) {
throw new \InvalidArgumentException(
"SSL CA bundle not found: {$options['verify']}"
);
}
}
}
}
if (!empty($options['decode_content'])) {
$accept = $easy->request->getHeaderLine('Accept-Encoding');
if ($accept) {
$conf[CURLOPT_ENCODING] = $accept;
} else {
$conf[CURLOPT_ENCODING] = '';
// Don't let curl send the header over the wire
$conf[CURLOPT_HTTPHEADER][] = 'Accept-Encoding:';
}
}
if (isset($options['sink'])) {
$sink = $options['sink'];
if (!is_string($sink)) {
$sink = \GuzzleHttp\Psr7\stream_for($sink);
} elseif (!is_dir(dirname($sink))) {
// Ensure that the directory exists before failing in curl.
throw new \RuntimeException(sprintf(
'Directory %s does not exist for sink value of %s',
dirname($sink),
$sink
));
} else {
$sink = new LazyOpenStream($sink, 'w+');
}
$easy->sink = $sink;
$conf[CURLOPT_WRITEFUNCTION] = function ($ch, $write) use ($sink) {
return $sink->write($write);
};
} else {
// Use a default temp stream if no sink was set.
$conf[CURLOPT_FILE] = fopen('php://temp', 'w+');
$easy->sink = Psr7\stream_for($conf[CURLOPT_FILE]);
}
if (isset($options['timeout'])) {
$conf[CURLOPT_TIMEOUT_MS] = $options['timeout'] * 1000;
}
if (isset($options['connect_timeout'])) {
$conf[CURLOPT_CONNECTTIMEOUT_MS] = $options['connect_timeout'] * 1000;
}
if (isset($options['proxy'])) {
if (!is_array($options['proxy'])) {
$conf[CURLOPT_PROXY] = $options['proxy'];
} else {
$scheme = $easy->request->getUri()->getScheme();
if (isset($options['proxy'][$scheme])) {
$host = $easy->request->getUri()->getHost();
if (!isset($options['proxy']['no']) ||
!\GuzzleHttp\is_host_in_noproxy($host, $options['proxy']['no'])
) {
$conf[CURLOPT_PROXY] = $options['proxy'][$scheme];
}
}
}
}
if (isset($options['cert'])) {
$cert = $options['cert'];
if (is_array($cert)) {
$conf[CURLOPT_SSLCERTPASSWD] = $cert[1];
$cert = $cert[0];
}
if (!file_exists($cert)) {
throw new \InvalidArgumentException(
"SSL certificate not found: {$cert}"
);
}
$conf[CURLOPT_SSLCERT] = $cert;
}
if (isset($options['ssl_key'])) {
$sslKey = $options['ssl_key'];
if (is_array($sslKey)) {
$conf[CURLOPT_SSLKEYPASSWD] = $sslKey[1];
$sslKey = $sslKey[0];
}
if (!file_exists($sslKey)) {
throw new \InvalidArgumentException(
"SSL private key not found: {$sslKey}"
);
}
$conf[CURLOPT_SSLKEY] = $sslKey;
}
if (isset($options['progress'])) {
$progress = $options['progress'];
if (!is_callable($progress)) {
throw new \InvalidArgumentException(
'progress client option must be callable'
);
}
$conf[CURLOPT_NOPROGRESS] = false;
$conf[CURLOPT_PROGRESSFUNCTION] = function () use ($progress) {
$args = func_get_args();
// PHP 5.5 pushed the handle onto the start of the args
if (is_resource($args[0])) {
array_shift($args);
}
call_user_func_array($progress, $args);
};
}
if (!empty($options['debug'])) {
$conf[CURLOPT_STDERR] = \GuzzleHttp\debug_resource($options['debug']);
$conf[CURLOPT_VERBOSE] = true;
}
}
/**
* This function ensures that a response was set on a transaction. If one
* was not set, then the request is retried if possible. This error
* typically means you are sending a payload, curl encountered a
* "Connection died, retrying a fresh connect" error, tried to rewind the
* stream, and then encountered a "necessary data rewind wasn't possible"
* error, causing the request to be sent through curl_multi_info_read()
* without an error status.
*/
private static function retryFailedRewind(
callable $handler,
EasyHandle $easy,
array $ctx
) {
try {
// Only rewind if the body has been read from.
$body = $easy->request->getBody();
if ($body->tell() > 0) {
$body->rewind();
}
} catch (\RuntimeException $e) {
$ctx['error'] = 'The connection unexpectedly failed without '
. 'providing an error. The request would have been retried, '
. 'but attempting to rewind the request body failed. '
. 'Exception: ' . $e;
return self::createRejection($easy, $ctx);
}
// Retry no more than 3 times before giving up.
if (!isset($easy->options['_curl_retries'])) {
$easy->options['_curl_retries'] = 1;
} elseif ($easy->options['_curl_retries'] == 2) {
$ctx['error'] = 'The cURL request was retried 3 times '
. 'and did not succeed. The most likely reason for the failure '
. 'is that cURL was unable to rewind the body of the request '
. 'and subsequent retries resulted in the same error. Turn on '
. 'the debug option to see what went wrong. See '
. 'https://bugs.php.net/bug.php?id=47204 for more information.';
return self::createRejection($easy, $ctx);
} else {
$easy->options['_curl_retries']++;
}
return $handler($easy->request, $easy->options);
}
private function createHeaderFn(EasyHandle $easy)
{
if (!isset($easy->options['on_headers'])) {
$onHeaders = null;
} elseif (!is_callable($easy->options['on_headers'])) {
throw new \InvalidArgumentException('on_headers must be callable');
} else {
$onHeaders = $easy->options['on_headers'];
}
return function ($ch, $h) use (
$onHeaders,
$easy,
&$startingResponse
) {
$value = trim($h);
if ($value === '') {
$startingResponse = true;
$easy->createResponse();
if ($onHeaders) {
try {
$onHeaders($easy->response);
} catch (\Exception $e) {
// Associate the exception with the handle and trigger
// a curl header write error by returning 0.
$easy->onHeadersException = $e;
return -1;
}
}
} elseif ($startingResponse) {
$startingResponse = false;
$easy->headers = [$value];
} else {
$easy->headers[] = $value;
}
return strlen($h);
};
}
}

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<?php
namespace GuzzleHttp\Handler;
use Psr\Http\Message\RequestInterface;
interface CurlFactoryInterface
{
/**
* Creates a cURL handle resource.
*
* @param RequestInterface $request Request
* @param array $options Transfer options
*
* @return EasyHandle
* @throws \RuntimeException when an option cannot be applied
*/
public function create(RequestInterface $request, array $options);
/**
* Release an easy handle, allowing it to be reused or closed.
*
* This function must call unset on the easy handle's "handle" property.
*
* @param EasyHandle $easy
*/
public function release(EasyHandle $easy);
}

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<?php
namespace GuzzleHttp\Handler;
use GuzzleHttp\Psr7;
use Psr\Http\Message\RequestInterface;
/**
* HTTP handler that uses cURL easy handles as a transport layer.
*
* When using the CurlHandler, custom curl options can be specified as an
* associative array of curl option constants mapping to values in the
* **curl** key of the "client" key of the request.
*/
class CurlHandler
{
/** @var CurlFactoryInterface */
private $factory;
/**
* Accepts an associative array of options:
*
* - factory: Optional curl factory used to create cURL handles.
*
* @param array $options Array of options to use with the handler
*/
public function __construct(array $options = [])
{
$this->factory = isset($options['handle_factory'])
? $options['handle_factory']
: new CurlFactory(3);
}
public function __invoke(RequestInterface $request, array $options)
{
if (isset($options['delay'])) {
usleep($options['delay'] * 1000);
}
$easy = $this->factory->create($request, $options);
curl_exec($easy->handle);
$easy->errno = curl_errno($easy->handle);
return CurlFactory::finish($this, $easy, $this->factory);
}
}

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<?php
namespace GuzzleHttp\Handler;
use GuzzleHttp\Promise as P;
use GuzzleHttp\Promise\Promise;
use GuzzleHttp\Psr7;
use Psr\Http\Message\RequestInterface;
/**
* Returns an asynchronous response using curl_multi_* functions.
*
* When using the CurlMultiHandler, custom curl options can be specified as an
* associative array of curl option constants mapping to values in the
* **curl** key of the provided request options.
*
* @property resource $_mh Internal use only. Lazy loaded multi-handle.
*/
class CurlMultiHandler
{
/** @var CurlFactoryInterface */
private $factory;
private $selectTimeout;
private $active;
private $handles = [];
private $delays = [];
/**
* This handler accepts the following options:
*
* - handle_factory: An optional factory used to create curl handles
* - select_timeout: Optional timeout (in seconds) to block before timing
* out while selecting curl handles. Defaults to 1 second.
*
* @param array $options
*/
public function __construct(array $options = [])
{
$this->factory = isset($options['handle_factory'])
? $options['handle_factory'] : new CurlFactory(50);
$this->selectTimeout = isset($options['select_timeout'])
? $options['select_timeout'] : 1;
}
public function __get($name)
{
if ($name === '_mh') {
return $this->_mh = curl_multi_init();
}
throw new \BadMethodCallException();
}
public function __destruct()
{
if (isset($this->_mh)) {
curl_multi_close($this->_mh);
unset($this->_mh);
}
}
public function __invoke(RequestInterface $request, array $options)
{
$easy = $this->factory->create($request, $options);
$id = (int) $easy->handle;
$promise = new Promise(
[$this, 'execute'],
function () use ($id) { return $this->cancel($id); }
);
$this->addRequest(['easy' => $easy, 'deferred' => $promise]);
return $promise;
}
/**
* Ticks the curl event loop.
*/
public function tick()
{
// Add any delayed handles if needed.
if ($this->delays) {
$currentTime = microtime(true);
foreach ($this->delays as $id => $delay) {
if ($currentTime >= $delay) {
unset($this->delays[$id]);
curl_multi_add_handle(
$this->_mh,
$this->handles[$id]['easy']->handle
);
}
}
}
// Step through the task queue which may add additional requests.
P\queue()->run();
if ($this->active &&
curl_multi_select($this->_mh, $this->selectTimeout) === -1
) {
// Perform a usleep if a select returns -1.
// See: https://bugs.php.net/bug.php?id=61141
usleep(250);
}
while (curl_multi_exec($this->_mh, $this->active) === CURLM_CALL_MULTI_PERFORM);
$this->processMessages();
}
/**
* Runs until all outstanding connections have completed.
*/
public function execute()
{
$queue = P\queue();
while ($this->handles || !$queue->isEmpty()) {
// If there are no transfers, then sleep for the next delay
if (!$this->active && $this->delays) {
usleep($this->timeToNext());
}
$this->tick();
}
}
private function addRequest(array $entry)
{
$easy = $entry['easy'];
$id = (int) $easy->handle;
$this->handles[$id] = $entry;
if (empty($easy->options['delay'])) {
curl_multi_add_handle($this->_mh, $easy->handle);
} else {
$this->delays[$id] = microtime(true) + ($easy->options['delay'] / 1000);
}
}
/**
* Cancels a handle from sending and removes references to it.
*
* @param int $id Handle ID to cancel and remove.
*
* @return bool True on success, false on failure.
*/
private function cancel($id)
{
// Cannot cancel if it has been processed.
if (!isset($this->handles[$id])) {
return false;
}
$handle = $this->handles[$id]['easy']->handle;
unset($this->delays[$id], $this->handles[$id]);
curl_multi_remove_handle($this->_mh, $handle);
curl_close($handle);
return true;
}
private function processMessages()
{
while ($done = curl_multi_info_read($this->_mh)) {
$id = (int) $done['handle'];
curl_multi_remove_handle($this->_mh, $done['handle']);
if (!isset($this->handles[$id])) {
// Probably was cancelled.
continue;
}
$entry = $this->handles[$id];
unset($this->handles[$id], $this->delays[$id]);
$entry['easy']->errno = $done['result'];
$entry['deferred']->resolve(
CurlFactory::finish(
$this,
$entry['easy'],
$this->factory
)
);
}
}
private function timeToNext()
{
$currentTime = microtime(true);
$nextTime = PHP_INT_MAX;
foreach ($this->delays as $time) {
if ($time < $nextTime) {
$nextTime = $time;
}
}
return max(0, $currentTime - $nextTime);
}
}

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<?php
namespace GuzzleHttp\Handler;
use GuzzleHttp\Psr7\Response;
use Psr\Http\Message\RequestInterface;
use Psr\Http\Message\ResponseInterface;
use Psr\Http\Message\StreamInterface;
/**
* Represents a cURL easy handle and the data it populates.
*
* @internal
*/
final class EasyHandle
{
/** @var resource cURL resource */
public $handle;
/** @var StreamInterface Where data is being written */
public $sink;
/** @var array Received HTTP headers so far */
public $headers = [];
/** @var ResponseInterface Received response (if any) */
public $response;
/** @var RequestInterface Request being sent */
public $request;
/** @var array Request options */
public $options = [];
/** @var int cURL error number (if any) */
public $errno = 0;
/** @var \Exception Exception during on_headers (if any) */
public $onHeadersException;
/**
* Attach a response to the easy handle based on the received headers.
*
* @throws \RuntimeException if no headers have been received.
*/
public function createResponse()
{
if (empty($this->headers)) {
throw new \RuntimeException('No headers have been received');
}
// HTTP-version SP status-code SP reason-phrase
$startLine = explode(' ', array_shift($this->headers), 3);
$headers = \GuzzleHttp\headers_from_lines($this->headers);
$normalizedKeys = \GuzzleHttp\normalize_header_keys($headers);
if (!empty($this->options['decode_content'])
&& isset($normalizedKeys['content-encoding'])
) {
unset($headers[$normalizedKeys['content-encoding']]);
if (isset($normalizedKeys['content-length'])) {
$bodyLength = (int) $this->sink->getSize();
if ($bodyLength) {
$headers[$normalizedKeys['content-length']] = $bodyLength;
} else {
unset($headers[$normalizedKeys['content-length']]);
}
}
}
// Attach a response to the easy handle with the parsed headers.
$this->response = new Response(
$startLine[1],
$headers,
$this->sink,
substr($startLine[0], 5),
isset($startLine[2]) ? (string) $startLine[2] : null
);
}
public function __get($name)
{
$msg = $name === 'handle'
? 'The EasyHandle has been released'
: 'Invalid property: ' . $name;
throw new \BadMethodCallException($msg);
}
}

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<?php
namespace GuzzleHttp\Handler;
use GuzzleHttp\HandlerStack;
use GuzzleHttp\Promise\PromiseInterface;
use GuzzleHttp\Promise\RejectedPromise;
use GuzzleHttp\TransferStats;
use Psr\Http\Message\RequestInterface;
use Psr\Http\Message\ResponseInterface;
/**
* Handler that returns responses or throw exceptions from a queue.
*/
class MockHandler implements \Countable
{
private $queue;
private $lastRequest;
private $lastOptions;
private $onFulfilled;
private $onRejected;
/**
* Creates a new MockHandler that uses the default handler stack list of
* middlewares.
*
* @param array $queue Array of responses, callables, or exceptions.
* @param callable $onFulfilled Callback to invoke when the return value is fulfilled.
* @param callable $onRejected Callback to invoke when the return value is rejected.
*
* @return MockHandler
*/
public static function createWithMiddleware(
array $queue = null,
callable $onFulfilled = null,
callable $onRejected = null
) {
return HandlerStack::create(new self($queue, $onFulfilled, $onRejected));
}
/**
* The passed in value must be an array of
* {@see Psr7\Http\Message\ResponseInterface} objects, Exceptions,
* callables, or Promises.
*
* @param array $queue
* @param callable $onFulfilled Callback to invoke when the return value is fulfilled.
* @param callable $onRejected Callback to invoke when the return value is rejected.
*/
public function __construct(
array $queue = null,
callable $onFulfilled = null,
callable $onRejected = null
) {
$this->onFulfilled = $onFulfilled;
$this->onRejected = $onRejected;
if ($queue) {
call_user_func_array([$this, 'append'], $queue);
}
}
public function __invoke(RequestInterface $request, array $options)
{
if (!$this->queue) {
throw new \OutOfBoundsException('Mock queue is empty');
}
if (isset($options['delay'])) {
usleep($options['delay'] * 1000);
}
$this->lastRequest = $request;
$this->lastOptions = $options;
$response = array_shift($this->queue);
if (is_callable($response)) {
$response = $response($request, $options);
}
$response = $response instanceof \Exception
? new RejectedPromise($response)
: \GuzzleHttp\Promise\promise_for($response);
return $response->then(
function ($value) use ($request, $options) {
$this->invokeStats($request, $options, $value);
if ($this->onFulfilled) {
call_user_func($this->onFulfilled, $value);
}
if (isset($options['sink'])) {
$contents = (string) $value->getBody();
$sink = $options['sink'];
if (is_resource($sink)) {
fwrite($sink, $contents);
} elseif (is_string($sink)) {
file_put_contents($sink, $contents);
} elseif ($sink instanceof \Psr\Http\Message\StreamInterface) {
$sink->write($contents);
}
}
return $value;
},
function ($reason) use ($request, $options) {
$this->invokeStats($request, $options, null, $reason);
if ($this->onRejected) {
call_user_func($this->onRejected, $reason);
}
return new RejectedPromise($reason);
}
);
}
/**
* Adds one or more variadic requests, exceptions, callables, or promises
* to the queue.
*/
public function append()
{
foreach (func_get_args() as $value) {
if ($value instanceof ResponseInterface
|| $value instanceof \Exception
|| $value instanceof PromiseInterface
|| is_callable($value)
) {
$this->queue[] = $value;
} else {
throw new \InvalidArgumentException('Expected a response or '
. 'exception. Found ' . \GuzzleHttp\describe_type($value));
}
}
}
/**
* Get the last received request.
*
* @return RequestInterface
*/
public function getLastRequest()
{
return $this->lastRequest;
}
/**
* Get the last received request options.
*
* @return RequestInterface
*/
public function getLastOptions()
{
return $this->lastOptions;
}
/**
* Returns the number of remaining items in the queue.
*
* @return int
*/
public function count()
{
return count($this->queue);
}
private function invokeStats(
RequestInterface $request,
array $options,
ResponseInterface $response = null,
$reason = null
) {
if (isset($options['on_stats'])) {
$stats = new TransferStats($request, $response, 0, $reason);
call_user_func($options['on_stats'], $stats);
}
}
}

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<?php
namespace GuzzleHttp\Handler;
use GuzzleHttp\RequestOptions;
use Psr\Http\Message\RequestInterface;
/**
* Provides basic proxies for handlers.
*/
class Proxy
{
/**
* Sends synchronous requests to a specific handler while sending all other
* requests to another handler.
*
* @param callable $default Handler used for normal responses
* @param callable $sync Handler used for synchronous responses.
*
* @return callable Returns the composed handler.
*/
public static function wrapSync(
callable $default,
callable $sync
) {
return function (RequestInterface $request, array $options) use ($default, $sync) {
return empty($options[RequestOptions::SYNCHRONOUS])
? $default($request, $options)
: $sync($request, $options);
};
}
/**
* Sends streaming requests to a streaming compatible handler while sending
* all other requests to a default handler.
*
* This, for example, could be useful for taking advantage of the
* performance benefits of curl while still supporting true streaming
* through the StreamHandler.
*
* @param callable $default Handler used for non-streaming responses
* @param callable $streaming Handler used for streaming responses
*
* @return callable Returns the composed handler.
*/
public static function wrapStreaming(
callable $default,
callable $streaming
) {
return function (RequestInterface $request, array $options) use ($default, $streaming) {
return empty($options['stream'])
? $default($request, $options)
: $streaming($request, $options);
};
}
}

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<?php
namespace GuzzleHttp\Handler;
use GuzzleHttp\Exception\RequestException;
use GuzzleHttp\Exception\ConnectException;
use GuzzleHttp\Promise\FulfilledPromise;
use GuzzleHttp\Promise\RejectedPromise;
use GuzzleHttp\Promise\PromiseInterface;
use GuzzleHttp\Psr7;
use GuzzleHttp\TransferStats;
use Psr\Http\Message\RequestInterface;
use Psr\Http\Message\ResponseInterface;
use Psr\Http\Message\StreamInterface;
/**
* HTTP handler that uses PHP's HTTP stream wrapper.
*/
class StreamHandler
{
private $lastHeaders = [];
/**
* Sends an HTTP request.
*
* @param RequestInterface $request Request to send.
* @param array $options Request transfer options.
*
* @return PromiseInterface
*/
public function __invoke(RequestInterface $request, array $options)
{
// Sleep if there is a delay specified.
if (isset($options['delay'])) {
usleep($options['delay'] * 1000);
}
$startTime = isset($options['on_stats']) ? microtime(true) : null;
try {
// Does not support the expect header.
$request = $request->withoutHeader('Expect');
// Append a content-length header if body size is zero to match
// cURL's behavior.
if (0 === $request->getBody()->getSize()) {
$request = $request->withHeader('Content-Length', 0);
}
return $this->createResponse(
$request,
$options,
$this->createStream($request, $options),
$startTime
);
} catch (\InvalidArgumentException $e) {
throw $e;
} catch (\Exception $e) {
// Determine if the error was a networking error.
$message = $e->getMessage();
// This list can probably get more comprehensive.
if (strpos($message, 'getaddrinfo') // DNS lookup failed
|| strpos($message, 'Connection refused')
|| strpos($message, "couldn't connect to host") // error on HHVM
) {
$e = new ConnectException($e->getMessage(), $request, $e);
}
$e = RequestException::wrapException($request, $e);
$this->invokeStats($options, $request, $startTime, null, $e);
return new RejectedPromise($e);
}
}
private function invokeStats(
array $options,
RequestInterface $request,
$startTime,
ResponseInterface $response = null,
$error = null
) {
if (isset($options['on_stats'])) {
$stats = new TransferStats(
$request,
$response,
microtime(true) - $startTime,
$error,
[]
);
call_user_func($options['on_stats'], $stats);
}
}
private function createResponse(
RequestInterface $request,
array $options,
$stream,
$startTime
) {
$hdrs = $this->lastHeaders;
$this->lastHeaders = [];
$parts = explode(' ', array_shift($hdrs), 3);
$ver = explode('/', $parts[0])[1];
$status = $parts[1];
$reason = isset($parts[2]) ? $parts[2] : null;
$headers = \GuzzleHttp\headers_from_lines($hdrs);
list ($stream, $headers) = $this->checkDecode($options, $headers, $stream);
$stream = Psr7\stream_for($stream);
$sink = $this->createSink($stream, $options);
$response = new Psr7\Response($status, $headers, $sink, $ver, $reason);
if (isset($options['on_headers'])) {
try {
$options['on_headers']($response);
} catch (\Exception $e) {
$msg = 'An error was encountered during the on_headers event';
$ex = new RequestException($msg, $request, $response, $e);
return new RejectedPromise($ex);
}
}
if ($sink !== $stream) {
$this->drain($stream, $sink);
}
$this->invokeStats($options, $request, $startTime, $response, null);
return new FulfilledPromise($response);
}
private function createSink(StreamInterface $stream, array $options)
{
if (!empty($options['stream'])) {
return $stream;
}
$sink = isset($options['sink'])
? $options['sink']
: fopen('php://temp', 'r+');
return is_string($sink)
? new Psr7\Stream(Psr7\try_fopen($sink, 'r+'))
: Psr7\stream_for($sink);
}
private function checkDecode(array $options, array $headers, $stream)
{
// Automatically decode responses when instructed.
if (!empty($options['decode_content'])) {
$normalizedKeys = \GuzzleHttp\normalize_header_keys($headers);
if (isset($normalizedKeys['content-encoding'])) {
$encoding = $headers[$normalizedKeys['content-encoding']];
if ($encoding[0] == 'gzip' || $encoding[0] == 'deflate') {
$stream = new Psr7\InflateStream(
Psr7\stream_for($stream)
);
// Remove content-encoding header
unset($headers[$normalizedKeys['content-encoding']]);
// Fix content-length header
if (isset($normalizedKeys['content-length'])) {
$length = (int) $stream->getSize();
if ($length == 0) {
unset($headers[$normalizedKeys['content-length']]);
} else {
$headers[$normalizedKeys['content-length']] = [$length];
}
}
}
}
}
return [$stream, $headers];
}
/**
* Drains the source stream into the "sink" client option.
*
* @param StreamInterface $source
* @param StreamInterface $sink
*
* @return StreamInterface
* @throws \RuntimeException when the sink option is invalid.
*/
private function drain(StreamInterface $source, StreamInterface $sink)
{
Psr7\copy_to_stream($source, $sink);
$sink->seek(0);
$source->close();
return $sink;
}
/**
* Create a resource and check to ensure it was created successfully
*
* @param callable $callback Callable that returns stream resource
*
* @return resource
* @throws \RuntimeException on error
*/
private function createResource(callable $callback)
{
$errors = null;
set_error_handler(function ($_, $msg, $file, $line) use (&$errors) {
$errors[] = [
'message' => $msg,
'file' => $file,
'line' => $line
];
return true;
});
$resource = $callback();
restore_error_handler();
if (!$resource) {
$message = 'Error creating resource: ';
foreach ($errors as $err) {
foreach ($err as $key => $value) {
$message .= "[$key] $value" . PHP_EOL;
}
}
throw new \RuntimeException(trim($message));
}
return $resource;
}
private function createStream(RequestInterface $request, array $options)
{
static $methods;
if (!$methods) {
$methods = array_flip(get_class_methods(__CLASS__));
}
// HTTP/1.1 streams using the PHP stream wrapper require a
// Connection: close header
if ($request->getProtocolVersion() == '1.1'
&& !$request->hasHeader('Connection')
) {
$request = $request->withHeader('Connection', 'close');
}
// Ensure SSL is verified by default
if (!isset($options['verify'])) {
$options['verify'] = true;
}
$params = [];
$context = $this->getDefaultContext($request, $options);
if (isset($options['on_headers']) && !is_callable($options['on_headers'])) {
throw new \InvalidArgumentException('on_headers must be callable');
}
if (!empty($options)) {
foreach ($options as $key => $value) {
$method = "add_{$key}";
if (isset($methods[$method])) {
$this->{$method}($request, $context, $value, $params);
}
}
}
if (isset($options['stream_context'])) {
if (!is_array($options['stream_context'])) {
throw new \InvalidArgumentException('stream_context must be an array');
}
$context = array_replace_recursive(
$context,
$options['stream_context']
);
}
$context = $this->createResource(
function () use ($context, $params) {
return stream_context_create($context, $params);
}
);
return $this->createResource(
function () use ($request, &$http_response_header, $context) {
$resource = fopen($request->getUri(), 'r', null, $context);
$this->lastHeaders = $http_response_header;
return $resource;
}
);
}
private function getDefaultContext(RequestInterface $request)
{
$headers = '';
foreach ($request->getHeaders() as $name => $value) {
foreach ($value as $val) {
$headers .= "$name: $val\r\n";
}
}
$context = [
'http' => [
'method' => $request->getMethod(),
'header' => $headers,
'protocol_version' => $request->getProtocolVersion(),
'ignore_errors' => true,
'follow_location' => 0,
],
];
$body = (string) $request->getBody();
if (!empty($body)) {
$context['http']['content'] = $body;
// Prevent the HTTP handler from adding a Content-Type header.
if (!$request->hasHeader('Content-Type')) {
$context['http']['header'] .= "Content-Type:\r\n";
}
}
$context['http']['header'] = rtrim($context['http']['header']);
return $context;
}
private function add_proxy(RequestInterface $request, &$options, $value, &$params)
{
if (!is_array($value)) {
$options['http']['proxy'] = $value;
} else {
$scheme = $request->getUri()->getScheme();
if (isset($value[$scheme])) {
if (!isset($value['no'])
|| !\GuzzleHttp\is_host_in_noproxy(
$request->getUri()->getHost(),
$value['no']
)
) {
$options['http']['proxy'] = $value[$scheme];
}
}
}
}
private function add_timeout(RequestInterface $request, &$options, $value, &$params)
{
$options['http']['timeout'] = $value;
}
private function add_verify(RequestInterface $request, &$options, $value, &$params)
{
if ($value === true) {
// PHP 5.6 or greater will find the system cert by default. When
// < 5.6, use the Guzzle bundled cacert.
if (PHP_VERSION_ID < 50600) {
$options['ssl']['cafile'] = \GuzzleHttp\default_ca_bundle();
}
} elseif (is_string($value)) {
$options['ssl']['cafile'] = $value;
if (!file_exists($value)) {
throw new \RuntimeException("SSL CA bundle not found: $value");
}
} elseif ($value === false) {
$options['ssl']['verify_peer'] = false;
$options['ssl']['verify_peer_name'] = false;
return;
} else {
throw new \InvalidArgumentException('Invalid verify request option');
}
$options['ssl']['verify_peer'] = true;
$options['ssl']['verify_peer_name'] = true;
$options['ssl']['allow_self_signed'] = false;
}
private function add_cert(RequestInterface $request, &$options, $value, &$params)
{
if (is_array($value)) {
$options['ssl']['passphrase'] = $value[1];
$value = $value[0];
}
if (!file_exists($value)) {
throw new \RuntimeException("SSL certificate not found: {$value}");
}
$options['ssl']['local_cert'] = $value;
}
private function add_progress(RequestInterface $request, &$options, $value, &$params)
{
$this->addNotification(
$params,
function ($code, $a, $b, $c, $transferred, $total) use ($value) {
if ($code == STREAM_NOTIFY_PROGRESS) {
$value($total, $transferred, null, null);
}
}
);
}
private function add_debug(RequestInterface $request, &$options, $value, &$params)
{
if ($value === false) {
return;
}
static $map = [
STREAM_NOTIFY_CONNECT => 'CONNECT',
STREAM_NOTIFY_AUTH_REQUIRED => 'AUTH_REQUIRED',
STREAM_NOTIFY_AUTH_RESULT => 'AUTH_RESULT',
STREAM_NOTIFY_MIME_TYPE_IS => 'MIME_TYPE_IS',
STREAM_NOTIFY_FILE_SIZE_IS => 'FILE_SIZE_IS',
STREAM_NOTIFY_REDIRECTED => 'REDIRECTED',
STREAM_NOTIFY_PROGRESS => 'PROGRESS',
STREAM_NOTIFY_FAILURE => 'FAILURE',
STREAM_NOTIFY_COMPLETED => 'COMPLETED',
STREAM_NOTIFY_RESOLVE => 'RESOLVE',
];
static $args = ['severity', 'message', 'message_code',
'bytes_transferred', 'bytes_max'];
$value = \GuzzleHttp\debug_resource($value);
$ident = $request->getMethod() . ' ' . $request->getUri();
$this->addNotification(
$params,
function () use ($ident, $value, $map, $args) {
$passed = func_get_args();
$code = array_shift($passed);
fprintf($value, '<%s> [%s] ', $ident, $map[$code]);
foreach (array_filter($passed) as $i => $v) {
fwrite($value, $args[$i] . ': "' . $v . '" ');
}
fwrite($value, "\n");
}
);
}
private function addNotification(array &$params, callable $notify)
{
// Wrap the existing function if needed.
if (!isset($params['notification'])) {
$params['notification'] = $notify;
} else {
$params['notification'] = $this->callArray([
$params['notification'],
$notify
]);
}
}
private function callArray(array $functions)
{
return function () use ($functions) {
$args = func_get_args();
foreach ($functions as $fn) {
call_user_func_array($fn, $args);
}
};
}
}