fix(alerting): Add support for client.insecure in email alerting prov…

…ider (#583) * feat: adding client.insecure flag to email configuration * chore(review): applying suggested changes --------- Co-authored-by: TwiN <[email protected]>
TwiN · Oct 3, 2023 · e88bfa8 · e88bfa8
1 parent 0fa3c5d
commit e88bfa8
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diff --git a/README.md b/README.md
@@ -476,6 +476,7 @@ endpoints:
 | `alerting.email.port`              | Port the mail server is listening to (e.g. `587`)                                          | Required `0`  |
 | `alerting.email.to`                | Email(s) to send the alerts to                                                             | Required `""` |
 | `alerting.email.default-alert`     | Default alert configuration. <br />See [Setting a default alert](#setting-a-default-alert) | N/A           |
+| `alerting.email.client.insecure`   | Whether to skip TLS verification                                                           | `false`       |
 | `alerting.email.overrides`         | List of overrides that may be prioritized over the default configuration                   | `[]`          |
 | `alerting.email.overrides[].group` | Endpoint group for which the configuration will be overridden by this configuration        | `""`          |
 | `alerting.email.overrides[].to`    | Email(s) to send the alerts to                                                             | `""`          |
@@ -489,6 +490,8 @@ alerting:
     host: "mail.example.com"
     port: 587
     to: "[email protected],[email protected]"
+    client:
+      insecure: false
     # You can also add group-specific to keys, which will
     # override the to key above for the specified groups
     overrides:

diff --git a/alerting/provider/email/email.go b/alerting/provider/email/email.go
@@ -1,11 +1,13 @@
 package email
 
 import (
+	"crypto/tls"
 	"fmt"
 	"math"
 	"strings"
 
 	"github.com/TwiN/gatus/v5/alerting/alert"
+	"github.com/TwiN/gatus/v5/client"
 	"github.com/TwiN/gatus/v5/core"
 	gomail "gopkg.in/mail.v2"
 )
@@ -19,6 +21,9 @@ type AlertProvider struct {
 	Port     int    `yaml:"port"`
 	To       string `yaml:"to"`
 
+	// ClientConfig is the configuration of the client used to communicate with the provider's target
+	ClientConfig *client.Config `yaml:"client,omitempty"`
+
 	// DefaultAlert is the default alert configuration to use for endpoints with an alert of the appropriate type
 	DefaultAlert *alert.Alert `yaml:"default-alert,omitempty"`
 
@@ -62,6 +67,9 @@ func (provider *AlertProvider) Send(endpoint *core.Endpoint, alert *alert.Alert,
 	m.SetHeader("Subject", subject)
 	m.SetBody("text/plain", body)
 	d := gomail.NewDialer(provider.Host, provider.Port, username, provider.Password)
+	if provider.ClientConfig != nil && provider.ClientConfig.Insecure {
+		d.TLSConfig = &tls.Config{InsecureSkipVerify: true}
+	}
 	return d.DialAndSend(m)
 }