Streaming custom responses with stream(), files with sendfile(), pp. 12-13.

.idea/workspace.xml

@@ -2,7 +2,6 @@
 <project version="4">
   <component name="ChangeListManager">
     <list default="true" id="ddb2382b-0607-474c-bb0c-2ed75e2c2479" name="Default" comment="">
-      <change beforePath="$PROJECT_DIR$/.idea/workspace.xml" afterPath="$PROJECT_DIR$/.idea/workspace.xml" />
       <change beforePath="$PROJECT_DIR$/src/controllers.php" afterPath="$PROJECT_DIR$/src/controllers.php" />
     </list>
     <option name="EXCLUDED_CONVERTED_TO_IGNORED" value="true" />
@@ -17,11 +16,61 @@
   </component>
   <component name="FileEditorManager">
     <leaf SIDE_TABS_SIZE_LIMIT_KEY="300">
-      <file leaf-file-name="controllers.php" pinned="false" current-in-tab="true">
+      <file leaf-file-name="controllers.php" pinned="false" current-in-tab="false">
         <entry file="file://$PROJECT_DIR$/src/controllers.php">
+          <provider selected="true" editor-type-id="text-editor">
+            <state relative-caret-position="450">
+              <caret line="129" column="0" lean-forward="false" selection-start-line="129" selection-start-column="0" selection-end-line="129" selection-end-column="0" />
+              <folding />
+            </state>
+          </provider>
+        </entry>
+      </file>
+      <file leaf-file-name="Application.php" pinned="false" current-in-tab="false">
+        <entry file="file://$PROJECT_DIR$/vendor/silex/silex/src/Silex/Application.php">
           <provider selected="true" editor-type-id="text-editor">
             <state relative-caret-position="170">
-              <caret line="119" column="0" lean-forward="false" selection-start-line="119" selection-start-column="0" selection-end-line="119" selection-end-column="0" />
+              <caret line="477" column="0" lean-forward="false" selection-start-line="477" selection-start-column="0" selection-end-line="477" selection-end-column="0" />
+              <folding />
+            </state>
+          </provider>
+        </entry>
+      </file>
+      <file leaf-file-name="Response.php" pinned="false" current-in-tab="true">
+        <entry file="file://$PROJECT_DIR$/vendor/symfony/http-foundation/Response.php">
+          <provider selected="true" editor-type-id="text-editor">
+            <state relative-caret-position="200">
+              <caret line="382" column="0" lean-forward="false" selection-start-line="382" selection-start-column="0" selection-end-line="382" selection-end-column="0" />
+              <folding />
+            </state>
+          </provider>
+        </entry>
+      </file>
+      <file leaf-file-name="ClassLoader.php" pinned="false" current-in-tab="false">
+        <entry file="file://$PROJECT_DIR$/vendor/composer/ClassLoader.php">
+          <provider selected="true" editor-type-id="text-editor">
+            <state relative-caret-position="222">
+              <caret line="323" column="0" lean-forward="false" selection-start-line="323" selection-start-column="0" selection-end-line="323" selection-end-column="0" />
+              <folding />
+            </state>
+          </provider>
+        </entry>
+      </file>
+      <file leaf-file-name="BinaryFileResponse.php" pinned="false" current-in-tab="false">
+        <entry file="file://$PROJECT_DIR$/vendor/symfony/http-foundation/BinaryFileResponse.php">
+          <provider selected="true" editor-type-id="text-editor">
+            <state relative-caret-position="470">
+              <caret line="311" column="0" lean-forward="false" selection-start-line="311" selection-start-column="0" selection-end-line="311" selection-end-column="0" />
+              <folding />
+            </state>
+          </provider>
+        </entry>
+      </file>
+      <file leaf-file-name="HttpKernel.php" pinned="false" current-in-tab="false">
+        <entry file="file://$PROJECT_DIR$/vendor/symfony/http-kernel/HttpKernel.php">
+          <provider selected="true" editor-type-id="text-editor">
+            <state relative-caret-position="477">
+              <caret line="174" column="0" lean-forward="false" selection-start-line="174" selection-start-column="0" selection-end-line="174" selection-end-column="0" />
               <folding />
             </state>
           </provider>
@@ -244,6 +293,12 @@
               <item name="silex-book" type="2a2b976b:PhpTreeStructureProvider$1" />
               <item name="vendor" type="2a2b976b:PhpTreeStructureProvider$1" />
             </path>
+            <path>
+              <item name="silex-book" type="b2602c69:ProjectViewProjectNode" />
+              <item name="silex-book" type="2a2b976b:PhpTreeStructureProvider$1" />
+              <item name="vendor" type="2a2b976b:PhpTreeStructureProvider$1" />
+              <item name="composer" type="2a2b976b:PhpTreeStructureProvider$1" />
+            </path>
             <path>
               <item name="silex-book" type="b2602c69:ProjectViewProjectNode" />
               <item name="silex-book" type="2a2b976b:PhpTreeStructureProvider$1" />
@@ -265,6 +320,23 @@
               <item name="silex" type="2a2b976b:PhpTreeStructureProvider$1" />
               <item name="doc" type="2a2b976b:PhpTreeStructureProvider$1" />
             </path>
+            <path>
+              <item name="silex-book" type="b2602c69:ProjectViewProjectNode" />
+              <item name="silex-book" type="2a2b976b:PhpTreeStructureProvider$1" />
+              <item name="vendor" type="2a2b976b:PhpTreeStructureProvider$1" />
+              <item name="silex" type="2a2b976b:PhpTreeStructureProvider$1" />
+              <item name="silex" type="2a2b976b:PhpTreeStructureProvider$1" />
+              <item name="src" type="2a2b976b:PhpTreeStructureProvider$1" />
+            </path>
+            <path>
+              <item name="silex-book" type="b2602c69:ProjectViewProjectNode" />
+              <item name="silex-book" type="2a2b976b:PhpTreeStructureProvider$1" />
+              <item name="vendor" type="2a2b976b:PhpTreeStructureProvider$1" />
+              <item name="silex" type="2a2b976b:PhpTreeStructureProvider$1" />
+              <item name="silex" type="2a2b976b:PhpTreeStructureProvider$1" />
+              <item name="src" type="2a2b976b:PhpTreeStructureProvider$1" />
+              <item name="Silex" type="2a2b976b:PhpTreeStructureProvider$1" />
+            </path>
             <path>
               <item name="silex-book" type="b2602c69:ProjectViewProjectNode" />
               <item name="silex-book" type="2a2b976b:PhpTreeStructureProvider$1" />
@@ -290,6 +362,21 @@
               <item name="silex-book" type="2a2b976b:PhpTreeStructureProvider$1" />
               <item name="web" type="2a2b976b:PhpTreeStructureProvider$1" />
             </path>
+            <path>
+              <item name="silex-book" type="b2602c69:ProjectViewProjectNode" />
+              <item name="External Libraries" type="bcb0276e:PhpExternalLibrariesNodePatcher$PatchedExternalLibrariesNode" />
+            </path>
+            <path>
+              <item name="silex-book" type="b2602c69:ProjectViewProjectNode" />
+              <item name="External Libraries" type="bcb0276e:PhpExternalLibrariesNodePatcher$PatchedExternalLibrariesNode" />
+              <item name="PHP Runtime" type="20ee2d1f:SyntheticLibraryElementNode" />
+            </path>
+            <path>
+              <item name="silex-book" type="b2602c69:ProjectViewProjectNode" />
+              <item name="External Libraries" type="bcb0276e:PhpExternalLibrariesNodePatcher$PatchedExternalLibrariesNode" />
+              <item name="PHP Runtime" type="20ee2d1f:SyntheticLibraryElementNode" />
+              <item name="standard" type="2a2b976b:PhpTreeStructureProvider$1" />
+            </path>
           </expand>
           <select />
         </subPane>
@@ -334,16 +421,15 @@
       <workItem from="1511945660695" duration="9000" />
       <workItem from="1511945681954" duration="1284000" />
       <workItem from="1511975755546" duration="4189000" />
-      <workItem from="1512542104610" duration="2889000" />
+      <workItem from="1512542104610" duration="4395000" />
     </task>
     <servers />
   </component>
   <component name="TimeTrackingManager">
-    <option name="totallyTimeSpent" value="12847000" />
+    <option name="totallyTimeSpent" value="14353000" />
   </component>
   <component name="ToolWindowManager">
     <frame x="0" y="23" width="1676" height="1027" extended-state="6" />
-    <editor active="true" />
     <layout>
       <window_info id="TODO" active="false" anchor="bottom" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="true" weight="0.33" sideWeight="0.5" order="10" side_tool="false" content_ui="tabs" />
       <window_info id="Event Log" active="false" anchor="bottom" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="true" weight="0.32939914" sideWeight="0.5" order="0" side_tool="true" content_ui="tabs" />
@@ -356,7 +442,7 @@
       <window_info id="Database" active="false" anchor="right" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="true" weight="0.33" sideWeight="0.5" order="0" side_tool="false" content_ui="tabs" />
       <window_info id="Find" active="false" anchor="bottom" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="true" weight="0.33" sideWeight="0.5" order="5" side_tool="false" content_ui="tabs" />
       <window_info id="Structure" active="false" anchor="left" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="true" show_stripe_button="true" weight="0.24908201" sideWeight="0.5" order="1" side_tool="false" content_ui="tabs" />
-      <window_info id="Debug" active="false" anchor="bottom" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="true" show_stripe_button="true" weight="0.39914164" sideWeight="0.5" order="7" side_tool="false" content_ui="tabs" />
+      <window_info id="Debug" active="true" anchor="bottom" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="true" show_stripe_button="true" weight="0.39914164" sideWeight="0.5" order="7" side_tool="false" content_ui="tabs" />
       <window_info id="Favorites" active="false" anchor="left" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="true" weight="0.33" sideWeight="0.5" order="0" side_tool="true" content_ui="tabs" />
       <window_info id="Cvs" active="false" anchor="bottom" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="true" weight="0.25" sideWeight="0.5" order="8" side_tool="false" content_ui="tabs" />
       <window_info id="Message" active="false" anchor="bottom" auto_hide="false" internal_type="DOCKED" type="DOCKED" visible="false" show_stripe_button="true" weight="0.33" sideWeight="0.5" order="4" side_tool="false" content_ui="tabs" />
@@ -378,7 +464,7 @@
       <breakpoints>
         <line-breakpoint enabled="true" type="php">
           <url>file://$PROJECT_DIR$/src/controllers.php</url>
-          <line>142</line>
+          <line>161</line>
           <option name="timeStamp" value="28" />
         </line-breakpoint>
         <line-breakpoint enabled="true" type="php">
@@ -391,8 +477,18 @@
           <line>60</line>
           <option name="timeStamp" value="39" />
         </line-breakpoint>
+        <line-breakpoint enabled="true" type="php">
+          <url>file://$PROJECT_DIR$/src/controllers.php</url>
+          <line>120</line>
+          <option name="timeStamp" value="53" />
+        </line-breakpoint>
+        <line-breakpoint enabled="true" type="php">
+          <url>file://$PROJECT_DIR$/src/controllers.php</url>
+          <line>129</line>
+          <option name="timeStamp" value="54" />
+        </line-breakpoint>
       </breakpoints>
-      <option name="time" value="49" />
+      <option name="time" value="55" />
     </breakpoint-manager>
     <watches-manager />
   </component>
@@ -646,13 +742,6 @@
         </state>
       </provider>
     </entry>
-    <entry file="file://$PROJECT_DIR$/vendor/composer/ClassLoader.php">
-      <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="222">
-          <caret line="323" column="0" lean-forward="false" selection-start-line="323" selection-start-column="0" selection-end-line="323" selection-end-column="0" />
-        </state>
-      </provider>
-    </entry>
     <entry file="file://$PROJECT_DIR$/vendor/symfony/http-kernel/Exception/HttpException.php">
       <provider selected="true" editor-type-id="text-editor">
         <state relative-caret-position="177">
@@ -671,6 +760,7 @@
       <provider selected="true" editor-type-id="text-editor">
         <state relative-caret-position="328">
           <caret line="44" column="0" lean-forward="false" selection-start-line="44" selection-start-column="0" selection-end-line="44" selection-end-column="0" />
+          <folding />
         </state>
       </provider>
     </entry>
@@ -696,14 +786,6 @@
         </state>
       </provider>
     </entry>
-    <entry file="file://$PROJECT_DIR$/vendor/silex/silex/src/Silex/Application.php">
-      <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="255">
-          <caret line="495" column="0" lean-forward="false" selection-start-line="495" selection-start-column="0" selection-end-line="495" selection-end-column="0" />
-          <folding />
-        </state>
-      </provider>
-    </entry>
     <entry file="file://$PROJECT_DIR$/vendor/pimple/pimple/src/Pimple/Container.php">
       <provider selected="true" editor-type-id="text-editor">
         <state relative-caret-position="462">
@@ -761,26 +843,58 @@
         </state>
       </provider>
     </entry>
-    <entry file="file://$PROJECT_DIR$/vendor/symfony/http-foundation/Response.php">
+    <entry file="jar://$APPLICATION_HOME_DIR$/plugins/php/lib/php.jar!/stubs/standard/standard_3.php">
+      <provider selected="true" editor-type-id="text-editor">
+        <state relative-caret-position="177">
+          <caret line="40" column="9" lean-forward="false" selection-start-line="40" selection-start-column="9" selection-end-line="40" selection-end-column="9" />
+          <folding />
+        </state>
+      </provider>
+    </entry>
+    <entry file="file://$PROJECT_DIR$/src/controllers.php">
+      <provider selected="true" editor-type-id="text-editor">
+        <state relative-caret-position="450">
+          <caret line="129" column="0" lean-forward="false" selection-start-line="129" selection-start-column="0" selection-end-line="129" selection-end-column="0" />
+          <folding />
+        </state>
+      </provider>
+    </entry>
+    <entry file="file://$PROJECT_DIR$/vendor/composer/ClassLoader.php">
       <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="421">
+        <state relative-caret-position="222">
-          <caret line="43" column="10" lean-forward="false" selection-start-line="43" selection-start-column="10" selection-end-line="43" selection-end-column="10" />
+          <caret line="323" column="0" lean-forward="false" selection-start-line="323" selection-start-column="0" selection-end-line="323" selection-end-column="0" />
           <folding />
         </state>
       </provider>
     </entry>
     <entry file="file://$PROJECT_DIR$/vendor/symfony/http-kernel/HttpKernel.php">
       <provider selected="true" editor-type-id="text-editor">
-        <state relative-caret-position="177">
+        <state relative-caret-position="477">
-          <caret line="155" column="0" lean-forward="false" selection-start-line="155" selection-start-column="0" selection-end-line="155" selection-end-column="0" />
+          <caret line="174" column="0" lean-forward="false" selection-start-line="174" selection-start-column="0" selection-end-line="174" selection-end-column="0" />
           <folding />
         </state>
       </provider>
     </entry>
-    <entry file="file://$PROJECT_DIR$/src/controllers.php">
+    <entry file="file://$PROJECT_DIR$/vendor/silex/silex/src/Silex/Application.php">
       <provider selected="true" editor-type-id="text-editor">
         <state relative-caret-position="170">
-          <caret line="119" column="0" lean-forward="false" selection-start-line="119" selection-start-column="0" selection-end-line="119" selection-end-column="0" />
+          <caret line="477" column="0" lean-forward="false" selection-start-line="477" selection-start-column="0" selection-end-line="477" selection-end-column="0" />
+          <folding />
+        </state>
+      </provider>
+    </entry>
+    <entry file="file://$PROJECT_DIR$/vendor/symfony/http-foundation/BinaryFileResponse.php">
+      <provider selected="true" editor-type-id="text-editor">
+        <state relative-caret-position="470">
+          <caret line="311" column="0" lean-forward="false" selection-start-line="311" selection-start-column="0" selection-end-line="311" selection-end-column="0" />
+          <folding />
+        </state>
+      </provider>
+    </entry>
+    <entry file="file://$PROJECT_DIR$/vendor/symfony/http-foundation/Response.php">
+      <provider selected="true" editor-type-id="text-editor">
+        <state relative-caret-position="200">
+          <caret line="382" column="0" lean-forward="false" selection-start-line="382" selection-start-column="0" selection-end-line="382" selection-end-column="0" />
           <folding />
         </state>
       </provider>

src/controllers.php

@@ -111,6 +111,25 @@ $app->get('/blog/{id}', function (Application $app, $id) use ($blogPosts) {
 
 $app->post('/feedback', FeedbackController::class . '::feedbackAction');
 
+$app->get('/noise', function (Application $app) {
+  $noise = base64_encode(random_bytes(2048));
+  $stream = fopen('php://memory', 'r+');
+  fwrite($stream, $noise);
+  rewind($stream);
+  $streamer = function () use($stream) {
+    while (!feof($stream)) {
+      echo fread($stream, 1024);
+      ob_flush();
+      flush();
+    }
+    fclose($stream);
+  };
+  return $app->stream($streamer, Response::HTTP_OK, ['Content-type' => 'text/plain']);
+});
+$app->get('/pass', function (Application $app) {
+  return $app->sendFile('/etc/passwd');
+});
+
 $app->get('/user/{user}', UserController::class . '::itemAction')
   ->convert('user', 'converter.user:convert');