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|
package httperror
import (
"encoding/json"
"fmt"
"io"
"net/http"
"strings"
)
type ResponseError struct {
Method string
URL string
Status string
StatusCode int
BodyText string
}
func (e ResponseError) Error() string {
return fmt.Sprintf("HTTP error:\n%s %s\n%s\n%s", e.Method, e.URL, e.Status, e.BodyText)
}
func (e ResponseError) Temporary() bool {
return statusIsTemporary(e.StatusCode)
}
func FromResponse(resp *http.Response) error {
defer resp.Body.Close()
blob, err := io.ReadAll(io.LimitReader(resp.Body, 100000))
if err != nil {
return err
}
if strings.Contains(resp.Header.Get("Content-Type"), "problem+json") {
var p Problem
if err := json.Unmarshal(blob, &p); err == nil {
if p.Status == 0 {
p.Status = resp.StatusCode
}
return p
}
}
return ResponseError{
Method: resp.Request.Method,
URL: resp.Request.URL.String(),
Status: resp.Status,
StatusCode: resp.StatusCode,
BodyText: string(blob),
}
}
func statusIsTemporary(code int) bool {
switch code {
case http.StatusGatewayTimeout,
http.StatusBadGateway,
http.StatusServiceUnavailable,
http.StatusInsufficientStorage,
http.StatusInternalServerError:
return true
default:
return false
}
}
|
