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transport - enforcing Webex max message length. (#15789)

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* Add support for Webex max message length.

Webex limits messages to just over 7 KB.  Some alerts might be longer
than this.  So truncate the message with ellipses.

While here switch to using the new API URL.

* Use spaces.

Formatting got messed up on the transfer from test to dev.

* Do the truncation after the message is massaged.

This may yield a few more allowed characters.

---------

Co-authored-by: Joe Clarke <jclarke@cisco.com>
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Joe Clarke 2024-02-04 11:20:36 -05:00 committed by GitHub
parent 566619b2a8
commit 31e8557930
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1 changed files with 13 additions and 3 deletions
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16
LibreNMS/Alert/Transport/Ciscospark.php
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@ -19,23 +19,33 @@ use LibreNMS\Util\Http;
class Ciscospark extends Transport
{
protected string $name = 'Cisco Webex Teams';
// This is the total length minus 4 bytes for ellipses.
private static int $MAX_MSG_SIZE = 7435;
public function deliverAlert(array $alert_data): bool
{
$room_id = $this->config['room-id'];
$token = $this->config['api-token'];
$url = 'https://api.ciscospark.com/v1/messages';
$url = 'https://webexapis.com/v1/messages';
$data = [
'roomId' => $room_id,
];
if ($this->config['use-markdown'] === 'on') {
// Remove blank lines as they create weird markdown behaviors.
$data['markdown'] = preg_replace('/^\s+/m', '', $alert_data['msg']);
$msg = preg_replace('/^\s+/m', '', $alert_data['msg']);
$mtype = 'markdown';
} else {
$data['text'] = strip_tags($alert_data['msg']);
$msg = strip_tags($alert_data['msg']);
$mtype = 'text';
}
if (strlen($msg) > Ciscospark::$MAX_MSG_SIZE) {
$msg = substr($msg, 0, Ciscospark::$MAX_MSG_SIZE) . '...';
}
$data[$mtype] = $msg;
$res = Http::client()
->withToken($token)
->post($url, $data);