mirror of
https://github.com/TwiN/gatus.git
synced 2024-11-23 00:13:30 +01:00
95 lines
2.7 KiB
Go
95 lines
2.7 KiB
Go
package ntfy
|
|
|
|
import (
|
|
"bytes"
|
|
"encoding/json"
|
|
"fmt"
|
|
"io"
|
|
"net/http"
|
|
|
|
"github.com/TwiN/gatus/v4/alerting/alert"
|
|
"github.com/TwiN/gatus/v4/client"
|
|
"github.com/TwiN/gatus/v4/core"
|
|
)
|
|
|
|
const (
|
|
DefaultURL = "https://ntfy.sh"
|
|
DefaultPriority = 3
|
|
)
|
|
|
|
// AlertProvider is the configuration necessary for sending an alert using Slack
|
|
type AlertProvider struct {
|
|
Topic string `yaml:"topic"`
|
|
URL string `yaml:"url,omitempty"` // Defaults to DefaultURL
|
|
Priority int `yaml:"priority,omitempty"` // Defaults to DefaultPriority
|
|
|
|
// 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 {
|
|
if len(provider.URL) == 0 {
|
|
provider.URL = DefaultURL
|
|
}
|
|
if provider.Priority == 0 {
|
|
provider.Priority = DefaultPriority
|
|
}
|
|
return len(provider.URL) > 0 && len(provider.Topic) > 0 && provider.Priority > 0 && provider.Priority < 6
|
|
}
|
|
|
|
// Send an alert using the provider
|
|
func (provider *AlertProvider) Send(endpoint *core.Endpoint, alert *alert.Alert, result *core.Result, resolved bool) error {
|
|
buffer := bytes.NewBuffer([]byte(provider.buildRequestBody(endpoint, alert, result, resolved)))
|
|
request, err := http.NewRequest(http.MethodPost, provider.URL, buffer)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
request.Header.Set("Content-Type", "application/json")
|
|
response, err := client.GetHTTPClient(nil).Do(request)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
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 {
|
|
Topic string `json:"topic"`
|
|
Title string `json:"title"`
|
|
Message string `json:"message"`
|
|
Tags []string `json:"tags"`
|
|
Priority int `json:"priority"`
|
|
}
|
|
|
|
// 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, tag string
|
|
if len(alert.GetDescription()) > 0 {
|
|
message = endpoint.DisplayName() + " - " + alert.GetDescription()
|
|
} else {
|
|
message = endpoint.DisplayName()
|
|
}
|
|
if resolved {
|
|
tag = "white_check_mark"
|
|
} else {
|
|
tag = "x"
|
|
}
|
|
body, _ := json.Marshal(Body{
|
|
Topic: provider.Topic,
|
|
Title: "Gatus",
|
|
Message: message,
|
|
Tags: []string{tag},
|
|
Priority: provider.Priority,
|
|
})
|
|
return body
|
|
}
|
|
|
|
// GetDefaultAlert returns the provider's default alert configuration
|
|
func (provider AlertProvider) GetDefaultAlert() *alert.Alert {
|
|
return provider.DefaultAlert
|
|
}
|