Initial Commit

.gitignore

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+config.ini
+.php_cs.cache

README.md

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 # rafflebot-slack
 Bot for Slack, for Select active user in your team.
+
+You need, a API Key of your team, for get all members, and slash command integration. 
+
+After that, you need to rename config.ini.txt, to config.ini, replace these values with your new values.
+
+Documentation is on WIP...

config.ini.txt

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+SLACK_TOKEN = "YOUR-SLACK-TOKEN-HERE"
+COMMAND_TOKEN = "YOUR-SLACK-SLASH-TOKEN"
+COMMAND_NAME[] = "/yourcommand"
+; Use {user} for replace with name of selected user of your team.
+; Use {text} for add the parameter passed to the slash command.
+; You can use Markdown formatting.
+TEXT = "*Sorteo* de `{text}`, el seleccionado fue: {user}"

index.php

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+<?php 
+
+header('Content-Type: application/json');
+
+include 'src/Slack.php';
+$config = parse_ini_file("config.ini");
+$slack = new Slack($config['SLACK_TOKEN']);
+
+$data = $slack->call('users.list', ['presence' => true]);
+
+
+if (isset($data['members'])) {
+    $users=[];
+    foreach ($data['members'] as $member) {
+        if (isset($member['presence']) && $member['presence'] == "active") {
+            $users[] = $member;
+        }
+    }
+    $index = array_rand($users);
+    $user_id = $users[$index]['id'];
+    $username = $users[$index]['name'];
+} else {
+    die(json_encode([
+        'ok'    => false,
+        'error' => 'Failed Connection to Slack',
+        'response' => $data
+    ]));
+}
+
+
+$request = $_POST;
+
+if (!empty($request['token']) && $request['token'] == $config['COMMAND_TOKEN']) {
+    $command = (!empty($request['command'])) ? $request['command'] : '';
+    $text = (!empty($request['text'])) ? $request['text'] : '';
+    $username = (!empty($request['user_name'])) ? $request['user_name'] : '';
+
+    switch ($command) {
+        case $config['COMMAND_NAME'][0]:
+                $response_text = str_replace('{text}', $text, $config['TEXT']);
+                $response_text = str_replace('{user}', "<@$user_id|$username>", $response_text);
+                $response = [
+                    'response_type' => 'in_channel',
+                    'text' => $response_text,
+                    'username' => "markdownbot",
+                    'mrkdwn' => true
+
+                ];
+                $response = json_encode($response);
+                echo $response;
+
+            break;
+
+    }
+} else {
+    die(json_encode([
+        'ok'    =>false,
+        'error' => 'Close Connection, is\'nt a post request'
+    ]));
+}

src/Slack.php

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+<?php
+/**
+ * Simple abstraction of Slack API
+ *
+ * Uses curl, if not falls back to file_get_contents and HTTP stream.
+ *
+ * For all api methods, refer to https://api.slack.com/
+ *
+ * @author  Yong Zhen <[email protected]>
+ * @version  1.0.0
+ */
+class Slack
+{
+    private $api_token;
+    private $api_endpoint = 'https://slack.com/api/<method>';
+
+  /**
+   * Create a new instance
+   * @param string $api_token Your Slack api bearer token
+   */
+  public function __construct($api_token)
+  {
+      $this->api_token = $api_token;
+  }
+
+  /**
+   * Calls an API method. You don't have to pass in the token, it will automatically be included.
+   * @param  string  $method  The API method to call.
+   * @param  array   $args    An associative array of arguments to pass to the API.
+   * @param  integer $timeout Set maximum time the request is allowed to take, in seconds.
+   * @return array           The response as an associative array, JSON-decoded.
+   */
+  public function call($method, $args = array(), $timeout = 10)
+  {
+      return $this->request($method, $args, $timeout);
+  }
+
+  /**
+   * Performs the underlying HTTP request.
+   * @param  string  $method  The API method to call.
+   * @param  array   $args    An associative array of arguments to pass to the API.
+   * @param  integer $timeout Set maximum time the request is allowed to take, in seconds.
+   * @return array           The response as an associative array, JSON-decoded.
+   */
+  private function request($method, $args = array(), $timeout = 10)
+  {
+      $url = str_replace('<method>', $method, $this->api_endpoint);
+      $args['token'] = $this->api_token;
+
+      if (function_exists('curl_version')) {
+          $ch = curl_init();
+          curl_setopt($ch, CURLOPT_URL, $url);
+          curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
+          curl_setopt($ch, CURLOPT_TIMEOUT, $timeout);
+          curl_setopt($ch, CURLOPT_POST, true);
+          curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
+          curl_setopt($ch, CURLOPT_POSTFIELDS, $args);
+          $result = curl_exec($ch);
+          curl_close($ch);
+      } else {
+          $post_data = http_build_query($args);
+          $result    = file_get_contents($url, false, stream_context_create(array(
+        'http' => array(
+          'protocol_version' => 1.1,
+          'method'           => 'POST',
+          'header'           => "Content-type: application/x-www-form-urlencoded\r\n" .
+                                "Content-length: " . strlen($post_data) . "\r\n" .
+                                "Connection: close\r\n",
+          'content'          => $post_data
+        ),
+      )));
+      }
+
+      return $result ? json_decode($result, true) : false;
+  }
+}