From 4b671eb82c16bff4c941bcbf067921980400baed Mon Sep 17 00:00:00 2001
From: Haralan Dobrev <hkdobrev@gmail.com>
Date: Tue, 6 Sep 2016 23:48:38 +0300
Subject: [PATCH] Add a Slack Webhooks handler using the same SlackRecord util

---
 src/Monolog/Handler/SlackWebhookHandler.php | 96 +++++++++++++++++++++
 1 file changed, 96 insertions(+)
 create mode 100644 src/Monolog/Handler/SlackWebhookHandler.php

diff --git a/src/Monolog/Handler/SlackWebhookHandler.php b/src/Monolog/Handler/SlackWebhookHandler.php
new file mode 100644
index 00000000..1d5ab1a7
--- /dev/null
+++ b/src/Monolog/Handler/SlackWebhookHandler.php
@@ -0,0 +1,96 @@
+<?php
+
+/*
+ * This file is part of the Monolog package.
+ *
+ * (c) Jordi Boggiano <j.boggiano@seld.be>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Monolog\Handler;
+
+use Monolog\Logger;
+use Monolog\Formatter\LineFormatter;
+use Monolog\Handler\Slack\SlackRecord;
+
+/**
+ * Sends notifications through Slack Webhooks
+ *
+ * @author Haralan Dobrev <hkdobrev@gmail.com>
+ * @see    https://api.slack.com/incoming-webhooks
+ */
+class SlackWebhookHandler extends AbstractProcessingHandler
+{
+    /**
+     * Slack Webhook token
+     * @var string
+     */
+    private $webhookUrl;
+
+    /**
+     * Instance of the SlackRecord util class preparing data for Slack API.
+     * @var SlackRecord
+     */
+    private $slackRecord;
+
+    /**
+     * @param  string      $webhookUrl             Slack Webhook URL
+     * @param  string|null $channel                Slack channel (encoded ID or name)
+     * @param  string      $username               Name of a bot
+     * @param  bool        $useAttachment          Whether the message should be added to Slack as attachment (plain text otherwise)
+     * @param  string|null $iconEmoji              The emoji name to use (or null)
+     * @param  bool        $useShortAttachment     Whether the the context/extra messages added to Slack as attachments are in a short style
+     * @param  bool        $includeContextAndExtra Whether the attachment should include context and extra data
+     * @param  int         $level                  The minimum logging level at which this handler will be triggered
+     * @param  bool        $bubble                 Whether the messages that are handled can bubble up the stack or not
+     */
+    public function __construct(
+        $webhookUrl,
+        $channel = null,
+        $username = 'Monolog',
+        $useAttachment = true,
+        $iconEmoji = null,
+        $useShortAttachment = false,
+        $includeContextAndExtra = false,
+        $level = Logger::CRITICAL,
+        $bubble = true
+    ) {
+        parent::__construct($level, $bubble);
+
+        $this->webhookUrl = $webhookUrl;
+
+        $this->slackRecord = new SlackRecord(
+            $channel,
+            $username,
+            $useAttachment,
+            $iconEmoji,
+            $useShortAttachment,
+            $includeContextAndExtra,
+            $this->formatter
+        );
+    }
+
+    /**
+     * {@inheritdoc}
+     *
+     * @param array $record
+     */
+    protected function write(array $record)
+    {
+        $postData = $this->slackRecord->getSlackData($record);
+        $postString = json_encode($postData);
+
+        $ch = curl_init();
+        curl_setopt($ch, CURLOPT_URL, $this->webhookUrl);
+        curl_setopt($ch, CURLOPT_POST, true);
+        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
+        if (defined('CURLOPT_SAFE_UPLOAD')) {
+            curl_setopt($ch, CURLOPT_SAFE_UPLOAD, true);
+        }
+        curl_setopt($ch, CURLOPT_POSTFIELDS, array('payload' => $postString));
+
+        Curl\Util::execute($ch);
+    }
+}