FILE / ScuroNeko/Laniakea
errors.go
Исходный файл и его история в репозитории.
ScuroNeko
945b8240e6
- add centralized message validation errors - switch command handlers to return error - add explicit long plain-text reply helpers - support strict payload type policy with debug logging - document versioning and changelog workflow
60 lines
2.3 KiB
Go
60 lines
2.3 KiB
Go
package laniakea
|
|
|
|
import (
|
|
"errors"
|
|
"fmt"
|
|
"unicode/utf8"
|
|
)
|
|
|
|
const (
|
|
maxMessageTextLen = 4096
|
|
maxMessageCaptionLen = 1024
|
|
)
|
|
|
|
var (
|
|
// ErrEmptyMessage reports that a required message text is empty.
|
|
ErrEmptyMessage = errors.New("empty message")
|
|
// ErrMessageTooLong reports that a message exceeds Telegram's text limit.
|
|
ErrMessageTooLong = errors.New("message too long")
|
|
// ErrCaptionTooLong reports that a caption exceeds Telegram's caption limit.
|
|
ErrCaptionTooLong = errors.New("caption too long")
|
|
// ErrMessageSplitImpossible reports that automatic message splitting cannot preserve semantics.
|
|
ErrMessageSplitImpossible = errors.New("message split is impossible")
|
|
// ErrPayloadTypeMismatch reports that callback payload encoding does not match bot policy.
|
|
ErrPayloadTypeMismatch = errors.New("payload type mismatch")
|
|
// ErrDraftChatIDZero reports that a draft has no target chat ID.
|
|
ErrDraftChatIDZero = errors.New("zero draft chat ID")
|
|
// ErrMessageContextNil reports that an operation requires ctx.Msg but none is set.
|
|
ErrMessageContextNil = errors.New("message context is nil")
|
|
// ErrEditTargetMissing reports that an edit operation has no message target.
|
|
ErrEditTargetMissing = errors.New("edit target is missing")
|
|
// ErrCallbackMessageMissing reports that a callback operation has no callback message target.
|
|
ErrCallbackMessageMissing = errors.New("callback message is missing")
|
|
// ErrDraftProviderNil reports that draft creation was requested without a draft provider.
|
|
ErrDraftProviderNil = errors.New("draft provider is nil")
|
|
// ErrAPIIsNil reports that an operation requires an API client but none is set.
|
|
ErrAPIIsNil = errors.New("api is nil")
|
|
// ErrMessageIDZero reports that an operation requires a non-zero message ID.
|
|
ErrMessageIDZero = errors.New("message ID is zero")
|
|
)
|
|
|
|
func validateMessageText(text string) error {
|
|
length := utf8.RuneCountInString(text)
|
|
switch {
|
|
case length == 0:
|
|
return ErrEmptyMessage
|
|
case length > maxMessageTextLen:
|
|
return fmt.Errorf("%w: got %d, limit %d", ErrMessageTooLong, length, maxMessageTextLen)
|
|
default:
|
|
return nil
|
|
}
|
|
}
|
|
|
|
func validateCaptionText(text string) error {
|
|
length := utf8.RuneCountInString(text)
|
|
if length > maxMessageCaptionLen {
|
|
return fmt.Errorf("%w: got %d, limit %d", ErrCaptionTooLong, length, maxMessageCaptionLen)
|
|
}
|
|
return nil
|
|
}
|