[5.4] Allow Slack Notifications to use image urls

src/Illuminate/Notifications/Channels/SlackWebhookChannel.php

@@ -57,6 +57,7 @@ protected function buildJsonPayload(SlackMessage $message)
         $optionalFields = array_filter([
             'username' => data_get($message, 'username'),
             'icon_emoji' => data_get($message, 'icon'),
+            'icon_url' => data_get($message, 'image'),
             'channel' => data_get($message, 'channel'),
         ]);
 

src/Illuminate/Notifications/Messages/SlackMessage.php

@@ -21,12 +21,19 @@ class SlackMessage
     public $username;
 
     /**
-     * The user icon for the message.
+     * The user emoji icon for the message.
      *
      * @var string|null
      */
     public $icon;
 
+    /**
+     * The user image icon for the message.
+     *
+     * @var string|null
+     */
+    public $image;
+
     /**
      * The channel to send the message on.
      *
@@ -92,7 +99,7 @@ public function error()
     }
 
     /**
-     * Set a custom user icon for the Slack message.
+     * Set a custom username and optional emoji icon for the Slack message.
      *
      * @param  string  $username
      * @param  string|null  $icon
@@ -109,6 +116,19 @@ public function from($username, $icon = null)
         return $this;
     }
 
+    /**
+     * Set a custom image icon the message should use.
+     *
+     * @param  string $channel
+     * @return $this
+     */
+    public function image($image)
+    {
+        $this->image = $image;
+
+        return $this;
+    }
+
     /**
      * Set the Slack channel the message should be sent to.
      *

tests/Notifications/NotificationSlackChannelTest.php

@@ -65,6 +65,40 @@ public function testCorrectPayloadIsSentToSlack()
         );
     }
 
+    public function testCorrectPayloadIsSentToSlackWithImageIcon()
+    {
+        $this->validatePayload(
+            new NotificationSlackChannelTestNotificationWithImageIcon,
+            [
+                'json' => [
+                    'username' => 'Ghostbot',
+                    'icon_url' => 'http://example.com/image.png',
+                    'channel' => '#ghost-talk',
+                    'text' => 'Content',
+                    'attachments' => [
+                        [
+                            'title' => 'Laravel',
+                            'title_link' => 'https://laravel.com',
+                            'text' => 'Attachment Content',
+                            'fallback' => 'Attachment Fallback',
+                            'fields' => [
+                                [
+                                    'title' => 'Project',
+                                    'value' => 'Laravel',
+                                    'short' => true,
+                                ],
+                            ],
+                            'mrkdwn_in' => ['text'],
+                            'footer' => 'Laravel',
+                            'footer_icon' => 'https://laravel.com/fake.png',
+                            'ts' => 1234567890,
+                        ],
+                    ],
+                ],
+            ]
+        );
+    }
+
     public function testCorrectPayloadWithoutOptionalFieldsIsSentToSlack()
     {
         $this->validatePayload(
@@ -158,6 +192,32 @@ public function toSlack($notifiable)
     }
 }
 
+class NotificationSlackChannelTestNotificationWithImageIcon extends Notification
+{
+    public function toSlack($notifiable)
+    {
+        return (new SlackMessage)
+                    ->from('Ghostbot')
+                    ->image('http://example.com/image.png')
+                    ->to('#ghost-talk')
+                    ->content('Content')
+                    ->attachment(function ($attachment) {
+                        $timestamp = Mockery::mock('Carbon\Carbon');
+                        $timestamp->shouldReceive('getTimestamp')->andReturn(1234567890);
+                        $attachment->title('Laravel', 'https://laravel.com')
+                                   ->content('Attachment Content')
+                                   ->fallback('Attachment Fallback')
+                                   ->fields([
+                                        'Project' => 'Laravel',
+                                    ])
+                                    ->footer('Laravel')
+                                    ->footerIcon('https://laravel.com/fake.png')
+                                    ->markdown(['text'])
+                                    ->timestamp($timestamp);
+                    });
+    }
+}
+
 class NotificationSlackChannelWithoutOptionalFieldsTestNotification extends Notification
 {
     public function toSlack($notifiable)