Compatibility with legacy PHP 5.3

Author: clue

.travis.yml

@@ -1,6 +1,7 @@
 language: php
 
 php:
+# - 5.3 # requires old distro
   - 5.4
   - 5.5
   - 5.6
@@ -14,6 +15,9 @@ php:
 dist: trusty
 
 matrix:
+  include:
+    - php: 5.3
+      dist: precise
   allow_failures:
     - php: nightly
     - php: hhvm

README.md

@@ -170,7 +170,7 @@ $ composer require react/http-client:^0.5.7
 See also the [CHANGELOG](CHANGELOG.md) for details about version upgrades.
 
 This project aims to run on any platform and thus does not require any PHP
-extensions and supports running on legacy PHP 5.4 through current PHP 7+ and
+extensions and supports running on legacy PHP 5.3 through current PHP 7+ and
 HHVM.
 It's *highly recommended to use PHP 7+* for this project.
 

composer.json

@@ -4,8 +4,8 @@
     "keywords": ["http"],
     "license": "MIT",
     "require": {
-        "php": ">=5.4.0",
-        "evenement/evenement": "^3.0 || ^2.0",
+        "php": ">=5.3.0",
+        "evenement/evenement": "^3.0 || ^2.0 || ^1.0",
         "react/event-loop": "^1.0 || ^0.5 || ^0.4 || ^0.3",
         "react/promise": "^2.1 || ^1.2.1",
         "react/socket": "^1.0 || ^0.8.4",

src/ChunkedStreamDecoder.php

@@ -2,7 +2,7 @@
 
 namespace React\HttpClient;
 
-use Evenement\EventEmitterTrait;
+use Evenement\EventEmitter;
 use Exception;
 use React\Stream\ReadableStreamInterface;
 use React\Stream\Util;
@@ -11,12 +11,10 @@
 /**
  * @internal
  */
-class ChunkedStreamDecoder implements ReadableStreamInterface
+class ChunkedStreamDecoder extends EventEmitter implements ReadableStreamInterface
 {
     const CRLF = "\r\n";
 
-    use EventEmitterTrait;
-
     /**
      * @var string
      */
@@ -55,9 +53,9 @@ public function __construct(ReadableStreamInterface $stream)
         $this->stream = $stream;
         $this->stream->on('data', array($this, 'handleData'));
         $this->stream->on('end',  array($this, 'handleEnd'));
-        Util::forwardEvents($this->stream, $this, [
+        Util::forwardEvents($this->stream, $this, array(
             'error',
-        ]);
+        ));
     }
 
     /** @internal */
@@ -89,9 +87,9 @@ protected function iterateBuffer()
         if ($this->nextChunkIsLength) {
             $crlfPosition = strpos($this->buffer, static::CRLF);
             if ($crlfPosition === false && strlen($this->buffer) > 1024) {
-                $this->emit('error', [
+                $this->emit('error', array(
                     new Exception('Chunk length header longer then 1024 bytes'),
-                ]);
+                ));
                 $this->close();
                 return false;
             }
@@ -114,9 +112,9 @@ protected function iterateBuffer()
             }
             $this->nextChunkIsLength = false;
             if (dechex(hexdec($lengthChunk)) !== strtolower($lengthChunk)) {
-                $this->emit('error', [
+                $this->emit('error', array(
                     new Exception('Unable to validate "' . $lengthChunk . '" as chunk length header'),
-                ]);
+                ));
                 $this->close();
                 return false;
             }
@@ -200,9 +198,9 @@ public function handleEnd()
 
         $this->emit(
             'error',
-            [
+            array(
                 new Exception('Stream ended with incomplete control code')
-            ]
+            )
         );
         $this->close();
     }

src/Client.php

@@ -19,7 +19,7 @@ public function __construct(LoopInterface $loop, ConnectorInterface $connector =
         $this->connector = $connector;
     }
 
-    public function request($method, $url, array $headers = [], $protocolVersion = '1.0')
+    public function request($method, $url, array $headers = array(), $protocolVersion = '1.0')
     {
         $requestData = new RequestData($method, $url, $headers, $protocolVersion);
 

src/Request.php

@@ -2,7 +2,7 @@
 
 namespace React\HttpClient;
 
-use Evenement\EventEmitterTrait;
+use Evenement\EventEmitter;
 use React\Promise;
 use React\Socket\ConnectionInterface;
 use React\Socket\ConnectorInterface;
@@ -15,10 +15,8 @@
  * @event error
  * @event end
  */
-class Request implements WritableStreamInterface
+class Request extends EventEmitter implements WritableStreamInterface
 {
-    use EventEmitterTrait;
-
     const STATE_INIT = 0;
     const STATE_WRITING_HEAD = 1;
     const STATE_HEAD_WRITTEN = 2;
@@ -54,17 +52,18 @@ private function writeHead()
         $streamRef = &$this->stream;
         $stateRef = &$this->state;
         $pendingWrites = &$this->pendingWrites;
+        $that = $this;
 
         $promise = $this->connect();
         $promise->then(
-            function (ConnectionInterface $stream) use ($requestData, &$streamRef, &$stateRef, &$pendingWrites) {
+            function (ConnectionInterface $stream) use ($requestData, &$streamRef, &$stateRef, &$pendingWrites, $that) {
                 $streamRef = $stream;
 
-                $stream->on('drain', array($this, 'handleDrain'));
-                $stream->on('data', array($this, 'handleData'));
-                $stream->on('end', array($this, 'handleEnd'));
-                $stream->on('error', array($this, 'handleError'));
-                $stream->on('close', array($this, 'handleClose'));
+                $stream->on('drain', array($that, 'handleDrain'));
+                $stream->on('data', array($that, 'handleData'));
+                $stream->on('end', array($that, 'handleEnd'));
+                $stream->on('error', array($that, 'handleError'));
+                $stream->on('close', array($that, 'handleClose'));
 
                 $headers = (string) $requestData;
 
@@ -77,7 +76,7 @@ function (ConnectionInterface $stream) use ($requestData, &$streamRef, &$stateRe
                     $pendingWrites = '';
 
                     if ($more) {
-                        $this->emit('drain');
+                        $that->emit('drain');
                     }
                 }
             },
@@ -154,11 +153,10 @@ public function handleData($data)
                 return;
             }
 
-            $response->on('close', function () {
-                $this->close();
-            });
-            $response->on('error', function (\Exception $error) {
-                $this->closeError(new \RuntimeException(
+            $response->on('close', array($this, 'close'));
+            $that = $this;
+            $response->on('error', function (\Exception $error) use ($that) {
+                $that->closeError(new \RuntimeException(
                     "An error occured in the response",
                     0,
                     $error

src/RequestData.php

@@ -9,7 +9,7 @@ class RequestData
     private $headers;
     private $protocolVersion;
 
-    public function __construct($method, $url, array $headers = [], $protocolVersion = '1.0')
+    public function __construct($method, $url, array $headers = array(), $protocolVersion = '1.0')
     {
         $this->method = $method;
         $this->url = $url;

src/Response.php

@@ -12,9 +12,8 @@
  * @event error
  * @event end
  */
-class Response extends EventEmitter  implements ReadableStreamInterface
+class Response extends EventEmitter implements ReadableStreamInterface
 {
-
     private $stream;
     private $protocol;
     private $version;
@@ -166,7 +165,7 @@ public function resume()
         $this->stream->resume();
     }
 
-    public function pipe(WritableStreamInterface $dest, array $options = [])
+    public function pipe(WritableStreamInterface $dest, array $options = array())
     {
         Util::pipe($this, $dest, $options);