Created
July 23, 2012 10:27
-
-
Save int128/3162977 to your computer and use it in GitHub Desktop.
Generate an image to show environment status
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| <?php | |
| define('ZABBIX_AUTHKEY', '****'); | |
| define('FONT_PATH', '/usr/share/fonts/vlgothic/VL-PGothic-Regular.ttf'); | |
| //define('FONT_PATH', '/usr/share/fonts/dejavu/DejaVuSans.ttf'); | |
| define('FONT_SIZE', 24); | |
| define('IMAGE_WIDTH', 300); | |
| define('IMAGE_HEIGHT', 50); | |
| function zabbix_query ($request) { | |
| $channel = curl_init(); | |
| $options = array( | |
| CURLOPT_AUTOREFERER => TRUE, | |
| CURLOPT_FAILONERROR => FALSE, | |
| CURLOPT_RETURNTRANSFER => TRUE, | |
| CURLOPT_POST => TRUE, | |
| CURLOPT_HTTPHEADER => array('Content-Type: application/json-rpc'), | |
| CURLOPT_URL => 'http://localhost/zabbix/api_jsonrpc.php', | |
| CURLOPT_POSTFIELDS => $request | |
| ); | |
| curl_setopt_array($channel, $options); | |
| $result = curl_exec($channel); | |
| curl_close($channel); | |
| return json_decode($result, true); | |
| } | |
| function zabbix_query_items ($itemidarray) { | |
| $itemids = implode(',', $itemidarray); | |
| $authkey = ZABBIX_AUTHKEY; | |
| return zabbix_query(<<<EOT | |
| { | |
| "method":"item.get", | |
| "params":{"output":"extend","itemids":[$itemids]}, | |
| "id":1, | |
| "auth":"$authkey", | |
| "jsonrpc":"2.0" | |
| } | |
| EOT | |
| ); | |
| } | |
| function write_as_image ($message) { | |
| $image = imagecreatetruecolor(IMAGE_WIDTH, IMAGE_HEIGHT); | |
| $foreground_color = imagecolorallocate($image, 0, 0, 0); | |
| $background_color = imagecolorallocate($image, 255, 255, 255); | |
| imagefill($image, 0, 0, $background_color); | |
| imagettftext($image, FONT_SIZE, 0, 0, FONT_SIZE+10, $foreground_color, FONT_PATH, $message); | |
| header('Content-Type: image/png'); | |
| imagepng($image); | |
| imagedestroy($image); | |
| } | |
| $items = zabbix_query_items(array(/* item IDs: 1, 2, 3, ... */)); | |
| $message = sprintf(<<<EOT | |
| %s W %.1f ℃ | |
| EOT | |
| , | |
| number_format(((float) $items['result'][0]['lastvalue'])), | |
| (float) $items['result'][1]['lastvalue'] | |
| ); | |
| write_as_image($message); | |
| ?> |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment