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| 1 | +<?php |
| 2 | + |
| 3 | +/** |
| 4 | + * Webhook |
| 5 | + * @package framework |
| 6 | + * @subpackage webhook |
| 7 | + */ |
| 8 | + |
| 9 | +class Hm_Telegram_Webhook { |
| 10 | + |
| 11 | + /* webhook_token value */ |
| 12 | + private $webhook_token; |
| 13 | + |
| 14 | + private $prefix_ui = 'https://api.telegram.org/'; |
| 15 | + |
| 16 | + /** |
| 17 | + * Load webhook token |
| 18 | + * @param string $webhook_token |
| 19 | + */ |
| 20 | + public function __construct($webhook_token) { |
| 21 | + $this->webhook_token = $webhook_token; |
| 22 | + } |
| 23 | + |
| 24 | + // Function to send Telegram notification |
| 25 | + /** |
| 26 | + * send telegram notiofication using curl |
| 27 | + * @param array $extracted_msgs |
| 28 | + */ |
| 29 | + public function send(array $extracted_msgs) { |
| 30 | + // Delete the webhook |
| 31 | + if ($this->delete_webhook($this->webhook_token)) { |
| 32 | + // Get the chat ID |
| 33 | + $chatId = $this->get_chat_id(); |
| 34 | + if ($chatId) { |
| 35 | + $text = "New Message\nFrom: {$extracted_msgs['from']}\nSubject: {$extracted_msgs['subject']}\nContent: {$extracted_msgs['body']}"; |
| 36 | + |
| 37 | + $curl_handle = curl_init(); |
| 38 | + curl_setopt($curl_handle, CURLOPT_URL, "{$this->prefix_uri}bot{$this->webhook_token}/sendMessage"); |
| 39 | + curl_setopt($curl_handle, CURLOPT_POST, true); |
| 40 | + curl_setopt($curl_handle, CURLOPT_RETURNTRANSFER, true); |
| 41 | + curl_setopt($curl_handle, CURLOPT_POSTFIELDS, http_build_query(['chat_id' => $chatId, 'text' => $text])); |
| 42 | + curl_setopt($curl_handle, CURLOPT_HTTPHEADER, ["Content-Type: application/x-www-form-urlencoded"]); |
| 43 | + |
| 44 | + $response = curl_exec($curl_handle); |
| 45 | + if (curl_errno($ch)) { |
| 46 | + Hm_Msgs::add('ERRError:' . curl_error($curl_handle)); |
| 47 | + } else { |
| 48 | + $response_data = json_decode($response, true); |
| 49 | + if (!$response_data['ok']) { |
| 50 | + Hm_Msgs::add('ERRFailed to send message: ' . $response_data['description']); |
| 51 | + } |
| 52 | + } |
| 53 | + curl_close($curl_handle); |
| 54 | + unset($curl_handle); |
| 55 | + } |
| 56 | + } |
| 57 | + } |
| 58 | + |
| 59 | + /** |
| 60 | + * get the chat ID using webhook_token |
| 61 | + */ |
| 62 | + private function get_chat_id() { |
| 63 | + $curl_handle = curl_init(); |
| 64 | + curl_setopt($curl_handle, CURLOPT_URL, "{$this->prefix_ui}/bot{$this->webhook_token}/getUpdates"); |
| 65 | + curl_setopt($curl_handle, CURLOPT_RETURNTRANSFER, true); |
| 66 | + $response = curl_exec($curl_handle); |
| 67 | + |
| 68 | + if (curl_errno($curl_handle)) { |
| 69 | + Hm_Msgs::add('ERRError:' . curl_error($curl_handle)); |
| 70 | + return false; |
| 71 | + } else { |
| 72 | + $response_data = json_decode($response, true); |
| 73 | + if ($response_data['ok']) { |
| 74 | + if (!empty($response_data['result'])) { |
| 75 | + $chatId = $response_data['result'][0]['message']['chat']['id']; |
| 76 | + return $chatId; |
| 77 | + } else { |
| 78 | + Hm_Msgs::add('ERRNo messages found. Please send a message to your bot first.<br>'); |
| 79 | + return false; |
| 80 | + } |
| 81 | + } else { |
| 82 | + Hm_Msgs::add('ERRFailed to get chat ID: ' . $response_data['description'] . '<br>'); |
| 83 | + return false; |
| 84 | + } |
| 85 | + } |
| 86 | + |
| 87 | + curl_close($curl_handle); |
| 88 | + unset($curl_handle); |
| 89 | + } |
| 90 | + |
| 91 | + /** |
| 92 | + * This function is usefull when trying to resend, we need to delete old webhook before we send a new one |
| 93 | + * delete the webhook using webhook_token |
| 94 | + */ |
| 95 | + private function delete_webhook() { |
| 96 | + $curl_handle = curl_init(); |
| 97 | + curl_setopt($curl_handle, CURLOPT_URL, "{$this->prefix_ui}bot{$this->webhook_token}/delete_webhook"); |
| 98 | + curl_setopt($curl_handle, CURLOPT_RETURNTRANSFER, true); |
| 99 | + $response = curl_exec($curl_handle); |
| 100 | + |
| 101 | + if (curl_errno($curl_handle)) { |
| 102 | + Hm_Msgs::add('ERRError:' . curl_error($curl_handle)); |
| 103 | + return false; |
| 104 | + } else { |
| 105 | + $response_data = json_decode($response, true); |
| 106 | + if ($response_data['ok']) { |
| 107 | + Hm_Msgs::add('ERRWebhook was deleted successfully.<br>'); |
| 108 | + return true; |
| 109 | + } else { |
| 110 | + Hm_Msgs::add('ERRFailed to delete webhook: ' . $response_data['description'] . '<br>'); |
| 111 | + return false; |
| 112 | + } |
| 113 | + } |
| 114 | + |
| 115 | + curl_close($curl_handle); |
| 116 | + unset($curl_handle); |
| 117 | + } |
| 118 | +} |
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