Version 1.0 import

.gitignore

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+.idea
+/vendor
+composer.phar
+phpunit.phar
+/phpunit.xml

LICENSE

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+The MIT License (MIT)
+
+Copyright (c) 2016 Sergey Makinen
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

README.md

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-# yii2-slack-log
-Pretty Slack log target for Yii 2
+# Slack log target for Yii 2
+
+Pretty [Slack](https://slack.com) log target for Yii 2.
+
+![Screenshot](README.png)
+
+[![Code Quality](https://img.shields.io/scrutinizer/g/sergeymakinen/yii2-slack-log.svg?style=flat-square)](https://scrutinizer-ci.com/g/sergeymakinen/yii2-slack-log) [![Packagist Version](https://img.shields.io/packagist/v/sergeymakinen/yii2-slack-log.svg?style=flat-square)](https://packagist.org/packages/sergeymakinen/yii2-slack-log) [![Total Downloads](https://img.shields.io/packagist/dt/sergeymakinen/yii2-slack-log.svg?style=flat-square)](https://packagist.org/packages/sergeymakinen/yii2-slack-log) [![Software License](https://img.shields.io/badge/license-MIT-brightgreen.svg?style=flat-square)](LICENSE)
+
+## Installation
+
+The preferred way to install this extension is through [composer](http://getcomposer.org/download/).
+
+Either run
+
+```
+php composer.phar require sergeymakinen/yii2-slack-log "^1.0"
+```
+
+or add
+
+```
+"sergeymakinen/yii2-slack-log": "^1.0"
+```
+
+to the require section of your `composer.json` file.
+
+## Usage
+
+First set up an [incoming webhook integration](https://my.slack.com/services/new/incoming-webhook/) in your Slack team and obtain a token. It should look like `https://hooks.slack.com/services/T00000000/B00000000/XXXXXXXXXXXXXXXXXXXXXXXX`.
+
+Then set the following Yii 2 configuration parameters:
+
+```php
+'components' => [
+    'log' => [
+        'targets' => [
+            [
+                'class' => 'sergeymakinen\log\SlackTarget',
+                'exportInterval' => 50, // 50 or less is better
+                'webhookUrl' => 'https://hooks.slack.com/services/T00000000/B00000000/XXXXXXXXXXXXXXXXXXXXXXXX',
+            ],
+        ],
+    ],
+],
+```
+
+Sample config:
+
+```php
+'components' => [
+    'log' => [
+        'targets' => [
+            [
+                'class' => 'sergeymakinen\log\SlackTarget',
+                'levels' => ['error'],
+                'except' => [
+                    'yii\web\HttpException',
+                    'yii\web\HttpException:404',
+                ],
+                'exportInterval' => 50,
+                'enabled' => YII_ENV_PROD,
+                'webhookUrl' => 'https://hooks.slack.com/services/T00000000/B00000000/XXXXXXXXXXXXXXXXXXXXXXXX',
+                'username' => 'Fire Alarm Bot',
+                'iconEmoji' => ':poop:',
+            ],
+        ],
+    ],
+],
+```

SlackTarget.php

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+<?php
+
+namespace sergeymakinen\log;
+
+use yii\helpers\Json;
+use yii\helpers\Url;
+use yii\helpers\VarDumper;
+use yii\log\Logger;
+use yii\log\Target;
+use yii\web\Request;
+
+class SlackTarget extends Target
+{
+    /**
+     * Incoming Webhook URL.
+     *
+     * @var string
+     */
+    public $webhookUrl;
+
+    /**
+     * Displayed username.
+     *
+     * @var string
+     */
+    public $username;
+
+    /**
+     * Icon URL.
+     *
+     * @var string
+     */
+    public $iconUrl;
+
+    /**
+     * Icon Emoji.
+     *
+     * @var string
+     */
+    public $iconEmoji;
+
+    /**
+     * Channel or Direct Message.
+     *
+     * @var string
+     */
+    public $channel;
+
+    /**
+     * Colors per a Logger level.
+     *
+     * @var array
+     */
+    public $colors = [
+        Logger::LEVEL_ERROR => 'danger',
+        Logger::LEVEL_WARNING => 'warning'
+    ];
+
+    /**
+     * @inheritDoc
+     */
+    public function export()
+    {
+        if (!isset($this->webhookUrl)) {
+            return;
+        }
+
+        $payload = [
+            'parse' => 'none',
+            'attachments' => array_map([$this, 'formatMessageAttachment'], $this->messages)
+        ];
+        if (isset($this->username)) {
+            $payload['username'] = $this->username;
+        }
+        if (isset($this->iconUrl)) {
+            $payload['icon_url'] = $this->iconUrl;
+        }
+        if (isset($this->iconEmoji)) {
+            $payload['icon_emoji'] = $this->iconEmoji;
+        }
+        if (isset($this->channel)) {
+            $payload['channel'] = $this->channel;
+        }
+        $context  = stream_context_create([
+            'http' => [
+                'method' => 'POST',
+                'header' => "Content-Type: application/json; charset=UTF-8\r\n",
+                'content' => Json::encode($payload)
+            ]
+        ]);
+        @file_get_contents($this->webhookUrl, false, $context);
+    }
+
+    /**
+     * Encodes special chars in a message as HTML entities.
+     *
+     * @param string $message
+     *
+     * @return string
+     */
+    protected static function encodeMessage($message)
+    {
+        return htmlspecialchars($message, ENT_NOQUOTES, 'UTF-8');
+    }
+
+    /**
+     * Returns a properly formatted message attachment for Slack API.
+     *
+     * @param array $message
+     *
+     * @return array
+     */
+    protected function formatMessageAttachment($message)
+    {
+        list($text, $level, $category, $timestamp) = $message;
+        $attachment = [
+            'fallback' => static::encodeMessage($this->formatMessage($message)),
+            'title' => ucwords(Logger::getLevelName($level)),
+            'fields' => [
+                [
+                    'title' => 'Level',
+                    'value' => Logger::getLevelName($level),
+                    'short' => true
+                ],
+                [
+                    'title' => 'Category',
+                    'value' => '`' . static::encodeMessage($category) . '`',
+                    'short' => true
+                ]
+            ],
+            'footer' => static::class,
+            'ts' => (integer) round($timestamp),
+            'mrkdwn_in' => [
+                'fields',
+                'text'
+            ]
+        ];
+        if ($this->prefix !== null) {
+            $attachment['fields'][] = [
+                'title' => 'Prefix',
+                'value' => '`' . static::encodeMessage(call_user_func($this->prefix, $message)) . '`',
+                'short' => true,
+            ];
+        }
+        if (isset(\Yii::$app)) {
+            if (isset($_SERVER['argv'])) {
+                $attachment['author_name'] = implode(' ', $_SERVER['argv']);
+            } elseif (\Yii::$app->request instanceof Request) {
+                $attachment['author_name'] = Url::current([], true);
+                $attachment['author_link'] = $attachment['author_name'];
+                $attachment['fields'][] = [
+                    'title' => 'User IP',
+                    'value' => \Yii::$app->request->userIP,
+                    'short' => true,
+                ];
+            }
+            if (\Yii::$app->has('user', true) && isset(\Yii::$app->user)) {
+                $user = \Yii::$app->user->getIdentity(false);
+                if (isset($user)) {
+                    $attachment['fields'][] = [
+                        'title' => 'User ID',
+                        'value' => $user->getId(),
+                        'short' => true,
+                    ];
+                }
+            }
+            if (\Yii::$app->has('session', true) && isset(\Yii::$app->session)) {
+                if (\Yii::$app->session->isActive) {
+                    $attachment['fields'][] = [
+                        'title' => 'Session ID',
+                        'value' => \Yii::$app->session->id,
+                        'short' => true,
+                    ];
+                }
+            }
+        }
+        if (isset($this->colors[$level])) {
+            $attachment['color'] = $this->colors[$level];
+        }
+        if (!is_string($text)) {
+            if ($text instanceof \Throwable || $text instanceof \Exception) {
+                $text = (string) $text;
+            } else {
+                $text = VarDumper::export($text);
+            }
+        }
+        $attachment['text'] = "```\n" . static::encodeMessage($text) . "\n```";
+        $traces = [];
+        if (isset($message[4])) {
+            foreach ($message[4] as $trace) {
+                $traces[] = "in {$trace['file']}:{$trace['line']}";
+            }
+        }
+        if (!empty($traces)) {
+            $attachment['fields'][] = [
+                'title' => 'Stack Trace',
+                'value' => "```\n" . static::encodeMessage(implode("\n", $traces)) . "\n```",
+                'short' => false,
+            ];
+        }
+        return $attachment;
+    }
+}

composer.json

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+{
+    "name": "sergeymakinen/yii2-slack-log",
+    "homepage": "https://github.com/sergeymakinen/yii2-slack-log",
+    "description": "Pretty Slack log target for Yii 2",
+    "keywords": ["yii2-slack-log", "yii2", "yii", "slack", "log", "logging"],
+    "type": "yii2-extension",
+    "license": "MIT",
+    "support": {
+        "issues": "https://github.com/sergeymakinen/yii2-slack-log/issues?state=open",
+        "source": "https://github.com/sergeymakinen/yii2-slack-log"
+    },
+    "authors": [
+        {
+            "name": "Sergey Makinen",
+            "email": "[email protected]",
+            "homepage": "https://makinen.ru"
+        }
+    ],
+    "minimum-stability": "dev",
+    "require": {
+        "yiisoft/yii2": "2.0.*"
+    },
+    "autoload": {
+        "classmap": [
+            "SlackTarget.php"
+        ]
+    }
+}