Response and stream commads added.

.gitignore

@@ -1,4 +1,5 @@
 .DS_Store
 composer.lock
 vendor/
-dev/
+dev/
+.idea

composer.json

@@ -17,7 +17,8 @@
     },
     "require-dev": {
         "phpunit/phpunit": "3.*",
-        "mockery/mockery": "~0.9.2"
+        "mockery/mockery": "~0.9.2",
+        "guzzlehttp/psr7": "~1.1"
     },
     "suggest": {
         "ext-gd": "to use GD library based image processing.",

src/Intervention/Image/Commands/PsrResponseCommand.php

@@ -0,0 +1,45 @@
+<?php
+
+namespace Intervention\Image\Commands;
+
+use GuzzleHttp\Psr7\Response;
+
+class PsrResponseCommand extends AbstractCommand
+{
+    /**
+     * Builds PSR7 compatible response. May replace "response" command in
+     * some future.
+     *
+     * Method will generate binary stream and put it inside PSR-7
+     * ResponseInterface. Following code can be optimized using native php
+     * streams and more "clean" streaming, however drivers has to be updated
+     * first.
+     *
+     * @param  \Intervention\Image\Image $image
+     * @return boolean
+     */
+    public function execute($image)
+    {
+        $format = $this->argument(0)->value();
+        $quality = $this->argument(1)->between(0, 100)->value();
+
+        //Encoded property will be populated at this moment
+        $stream = $image->stream($format, $quality);
+
+        $mimetype = finfo_buffer(
+            finfo_open(FILEINFO_MIME_TYPE),
+            $image->encoded
+        );
+
+        $this->setOutput(new Response(
+            200,
+            array(
+                'Content-Type'   => $mimetype,
+                'Content-Length' => strlen($image->encoded)
+            ),
+            $stream
+        ));
+
+        return true;
+    }
+}

src/Intervention/Image/Commands/StreamCommand.php

@@ -0,0 +1,25 @@
+<?php
+
+namespace Intervention\Image\Commands;
+
+class StreamCommand extends AbstractCommand
+{
+    /**
+     * Builds PSR7 stream based on image data. Method uses Guzzle PSR7
+     * implementation as easiest choice.
+     *
+     * @param  \Intervention\Image\Image $image
+     * @return boolean
+     */
+    public function execute($image)
+    {
+        $format = $this->argument(0)->value();
+        $quality = $this->argument(1)->between(0, 100)->value();
+
+        $this->setOutput(\GuzzleHttp\Psr7\stream_for(
+            $image->encode($format, $quality)->encoded
+        ));
+
+        return true;
+    }
+}

src/Intervention/Image/Image.php

@@ -2,6 +2,9 @@
 
 namespace Intervention\Image;
 
+use Psr\Http\Message\ResponseInterface;
+use Psr\Http\Message\StreamInterface;
+
 /**
  * @method \Intervention\Image\Image backup(string $name = 'default')                                                                                                     Backups current image state as fallback for reset method under an optional name. Overwrites older state on every call, unless a different name is passed.
  * @method \Intervention\Image\Image blur(integer $amount = 1)                                                                                                            Apply a gaussian blur filter with a optional amount on the current image. Use values between 0 and 100.
@@ -45,6 +48,8 @@ namespace Intervention\Image;
  * @method \Intervention\Image\Image text(string $text, integer $x = 0, integer $y = 0, \Closure $callback = null)                                                        Write a text string to the current image at an optional x,y basepoint position. You can define more details like font-size, font-file and alignment via a callback as the fourth parameter.
  * @method \Intervention\Image\Image trim(string $base = 'top-left', array $away = array('top', 'bottom', 'left', 'right'), integer $tolerance = 0, integer $feather = 0) Trim away image space in given color. Define an optional base to pick a color at a certain position and borders that should be trimmed away. You can also set an optional tolerance level, to trim similar colors and add a feathering border around the trimed image.
  * @method \Intervention\Image\Image widen(integer $width, \Closure $callback = null)                                                                                     Resizes the current image to new width, constraining aspect ratio. Pass an optional Closure callback as third parameter, to apply additional constraints like preventing possible upsizing.
+ * @method StreamInterface           stream(string $format = null, integer $quality = 90)                                                                                 Builds PSR-7 compatible StreamInterface with current image in given format and quality.
+ * @method ResponseInterface         psrResponse(string $format = null, integer $quality = 90)                                                                            Builds PSR-7 compatible ResponseInterface with current image in given format and quality.
  */
 class Image extends File
 {