gatus/alerting/provider/messagebird/messagebird.go
2022-12-06 01:41:18 -05:00

82 lines
2.6 KiB
Go

package messagebird
import (
"bytes"
"encoding/json"
"fmt"
"io"
"net/http"
"github.com/TwiN/gatus/v5/alerting/alert"
"github.com/TwiN/gatus/v5/client"
"github.com/TwiN/gatus/v5/core"
)
const (
restAPIURL = "https://rest.messagebird.com/messages"
)
// AlertProvider is the configuration necessary for sending an alert using Messagebird
type AlertProvider struct {
AccessKey string `yaml:"access-key"`
Originator string `yaml:"originator"`
Recipients string `yaml:"recipients"`
// DefaultAlert is the default alert configuration to use for endpoints with an alert of the appropriate type
DefaultAlert *alert.Alert `yaml:"default-alert,omitempty"`
}
// IsValid returns whether the provider's configuration is valid
func (provider *AlertProvider) IsValid() bool {
return len(provider.AccessKey) > 0 && len(provider.Originator) > 0 && len(provider.Recipients) > 0
}
// Send an alert using the provider
// Reference doc for messagebird: https://developers.messagebird.com/api/sms-messaging/#send-outbound-sms
func (provider *AlertProvider) Send(endpoint *core.Endpoint, alert *alert.Alert, result *core.Result, resolved bool) error {
buffer := bytes.NewBuffer(provider.buildRequestBody(endpoint, alert, result, resolved))
request, err := http.NewRequest(http.MethodPost, restAPIURL, buffer)
if err != nil {
return err
}
request.Header.Set("Content-Type", "application/json")
request.Header.Set("Authorization", fmt.Sprintf("AccessKey %s", provider.AccessKey))
response, err := client.GetHTTPClient(nil).Do(request)
if err != nil {
return err
}
defer response.Body.Close()
if response.StatusCode > 399 {
body, _ := io.ReadAll(response.Body)
return fmt.Errorf("call to provider alert returned status code %d: %s", response.StatusCode, string(body))
}
return err
}
type Body struct {
Originator string `json:"originator"`
Recipients string `json:"recipients"`
Body string `json:"body"`
}
// buildRequestBody builds the request body for the provider
func (provider *AlertProvider) buildRequestBody(endpoint *core.Endpoint, alert *alert.Alert, result *core.Result, resolved bool) []byte {
var message string
if resolved {
message = fmt.Sprintf("RESOLVED: %s - %s", endpoint.DisplayName(), alert.GetDescription())
} else {
message = fmt.Sprintf("TRIGGERED: %s - %s", endpoint.DisplayName(), alert.GetDescription())
}
body, _ := json.Marshal(Body{
Originator: provider.Originator,
Recipients: provider.Recipients,
Body: message,
})
return body
}
// GetDefaultAlert returns the provider's default alert configuration
func (provider AlertProvider) GetDefaultAlert() *alert.Alert {
return provider.DefaultAlert
}