From d9d58154880b1e0c58d5f0536ded2ecd5501dae7 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Imre=20L=C3=A1szl=C3=B3?=
 <48689330+imrelaszlo@users.noreply.github.com>
Date: Wed, 28 May 2025 01:28:20 +0200
Subject: [PATCH] fix(alerting): Support Twilio overrides for
 `text-twilio-triggered` and `text-twilio-resolved` (#1120)

* Make twilio alert provider translatable

* Update alerting/provider/twilio/twilio.go

---------

Co-authored-by: Imre Laszlo <imre.laszlo@matrixonline.hu>
Co-authored-by: TwiN <twin@linux.com>
---
 alerting/provider/twilio/twilio.go | 22 ++++++++++++++++++++--
 1 file changed, 20 insertions(+), 2 deletions(-)

diff --git a/alerting/provider/twilio/twilio.go b/alerting/provider/twilio/twilio.go
index 544397fb..ccb83770 100644
--- a/alerting/provider/twilio/twilio.go
+++ b/alerting/provider/twilio/twilio.go
@@ -8,6 +8,7 @@ import (
 	"io"
 	"net/http"
 	"net/url"
+	"strings"
 
 	"github.com/TwiN/gatus/v5/alerting/alert"
 	"github.com/TwiN/gatus/v5/client"
@@ -27,6 +28,9 @@ type Config struct {
 	Token string `yaml:"token"`
 	From  string `yaml:"from"`
 	To    string `yaml:"to"`
+
+	TextTwilioTriggered string `yaml:"text-twilio-triggered,omitempty"` // String used in the SMS body and subject (optional)
+	TextTwilioResolved  string `yaml:"text-twilio-resolved,omitempty"`  // String used in the SMS body and subject (optional)
 }
 
 func (cfg *Config) Validate() error {
@@ -58,6 +62,12 @@ func (cfg *Config) Merge(override *Config) {
 	if len(override.To) > 0 {
 		cfg.To = override.To
 	}
+	if len(override.TextTwilioTriggered) > 0 {
+		cfg.TextTwilioTriggered = override.TextTwilioTriggered
+	}
+	if len(override.TextTwilioResolved) > 0 {
+		cfg.TextTwilioResolved = override.TextTwilioResolved
+	}
 }
 
 // AlertProvider is the configuration necessary for sending an alert using Twilio
@@ -102,9 +112,17 @@ func (provider *AlertProvider) Send(ep *endpoint.Endpoint, alert *alert.Alert, r
 func (provider *AlertProvider) buildRequestBody(cfg *Config, ep *endpoint.Endpoint, alert *alert.Alert, result *endpoint.Result, resolved bool) string {
 	var message string
 	if resolved {
-		message = fmt.Sprintf("RESOLVED: %s - %s", ep.DisplayName(), alert.GetDescription())
+		if len(cfg.TextTwilioResolved) > 0 {
+			message = strings.Replace(strings.Replace(cfg.TextTwilioResolved, "{endpoint}", ep.DisplayName(), 1), "{description}", alert.GetDescription(), 1)
+		} else {
+			message = fmt.Sprintf("RESOLVED: %s - %s", ep.DisplayName(), alert.GetDescription())
+		}
 	} else {
-		message = fmt.Sprintf("TRIGGERED: %s - %s", ep.DisplayName(), alert.GetDescription())
+		if len(cfg.TextTwilioTriggered) > 0 {
+			message = strings.Replace(strings.Replace(cfg.TextTwilioTriggered, "{endpoint}", ep.DisplayName(), 1), "{description}", alert.GetDescription(), 1)
+		} else {
+			message = fmt.Sprintf("TRIGGERED: %s - %s", ep.DisplayName(), alert.GetDescription())
+		}
 	}
 	return url.Values{
 		"To":   {cfg.To},