lego/acme/error.go

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package acme
import (
"encoding/json"
"fmt"
"net/http"
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"strings"
)
const (
tosAgreementError = "Must agree to subscriber agreement before any further actions"
)
// RemoteError is the base type for all errors specific to the ACME protocol.
type RemoteError struct {
StatusCode int `json:"status,omitempty"`
Type string `json:"type"`
Detail string `json:"detail"`
}
func (e RemoteError) Error() string {
return fmt.Sprintf("acme: Error %d - %s - %s", e.StatusCode, e.Type, e.Detail)
}
// TOSError represents the error which is returned if the user needs to
// accept the TOS.
// TODO: include the new TOS url if we can somehow obtain it.
type TOSError struct {
RemoteError
}
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type domainError struct {
Domain string
Error error
}
type challengeError struct {
RemoteError
records []validationRecord
}
func (c challengeError) Error() string {
var errStr string
for _, validation := range c.records {
errStr = errStr + fmt.Sprintf("\tValidation for %s:%s\n\tResolved to:\n\t\t%s\n\tUsed: %s\n\n",
validation.Hostname, validation.Port, strings.Join(validation.ResolvedAddresses, "\n\t\t"), validation.UsedAddress)
}
return fmt.Sprintf("%s\nError Detail:\n%s", c.RemoteError.Error(), errStr)
}
func handleHTTPError(resp *http.Response) error {
var errorDetail RemoteError
decoder := json.NewDecoder(resp.Body)
err := decoder.Decode(&errorDetail)
if err != nil {
return err
}
errorDetail.StatusCode = resp.StatusCode
// Check for errors we handle specifically
if errorDetail.StatusCode == http.StatusForbidden && errorDetail.Detail == tosAgreementError {
return TOSError{errorDetail}
}
return errorDetail
}
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func handleChallengeError(chlng challenge) error {
return challengeError{chlng.Error, chlng.ValidationRecords}
}