package cbreaker import ( "bytes" "fmt" "io" "io/ioutil" "net/http" "net/url" "strings" "github.com/vulcand/oxy/utils" ) type SideEffect interface { Exec() error } type Webhook struct { URL string Method string Headers http.Header Form url.Values Body []byte } type WebhookSideEffect struct { w Webhook } func NewWebhookSideEffect(w Webhook) (*WebhookSideEffect, error) { if w.Method == "" { return nil, fmt.Errorf("Supply method") } _, err := url.Parse(w.URL) if err != nil { return nil, err } return &WebhookSideEffect{w: w}, nil } func (w *WebhookSideEffect) getBody() io.Reader { if len(w.w.Form) != 0 { return strings.NewReader(w.w.Form.Encode()) } if len(w.w.Body) != 0 { return bytes.NewBuffer(w.w.Body) } return nil } func (w *WebhookSideEffect) Exec() error { r, err := http.NewRequest(w.w.Method, w.w.URL, w.getBody()) if err != nil { return err } if len(w.w.Headers) != 0 { utils.CopyHeaders(r.Header, w.w.Headers) } if len(w.w.Form) != 0 { r.Header.Set("Content-Type", "application/x-www-form-urlencoded") } re, err := http.DefaultClient.Do(r) if err != nil { return err } if re.Body != nil { defer re.Body.Close() } _, err = ioutil.ReadAll(re.Body) if err != nil { return err } return nil }