mirror of
https://github.com/superseriousbusiness/gotosocial.git
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105 lines
3.1 KiB
Go
105 lines
3.1 KiB
Go
// GoToSocial
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// Copyright (C) GoToSocial Authors admin@gotosocial.org
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// SPDX-License-Identifier: AGPL-3.0-or-later
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Affero General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Affero General Public License for more details.
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//
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// You should have received a copy of the GNU Affero General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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package gtserror
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import (
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"codeberg.org/gruf/go-errors/v2"
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)
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// package private error key type.
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type errkey int
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// ErrorType denotes the type of an error, if set.
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type ErrorType string
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const (
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// error value keys.
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_ errkey = iota
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statusCodeKey
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notFoundKey
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errorTypeKey
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unrtrvableKey
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wrongTypeKey
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// Types returnable from Type(...).
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TypeSMTP ErrorType = "smtp" // smtp (mail)
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)
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// Unretrievable ...
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func Unretrievable(err error) bool {
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_, ok := errors.Value(err, unrtrvableKey).(struct{})
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return ok
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}
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// SetUnretrievable ...
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func SetUnretrievable(err error) error {
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return errors.WithValue(err, unrtrvableKey, struct{}{})
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}
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// WrongType ...
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func WrongType(err error) bool {
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_, ok := errors.Value(err, wrongTypeKey).(struct{})
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return ok
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}
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// SetWrongType ...
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func SetWrongType(err error) error {
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return errors.WithValue(err, unrtrvableKey, struct{}{})
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}
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// StatusCode checks error for a stored status code value. For example
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// an error from an outgoing HTTP request may be stored, or an API handler
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// expected response status code may be stored.
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func StatusCode(err error) int {
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i, _ := errors.Value(err, statusCodeKey).(int)
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return i
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}
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// WithStatusCode will wrap the given error to store provided status code,
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// returning wrapped error. See StatusCode() for example use-cases.
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func WithStatusCode(err error, code int) error {
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return errors.WithValue(err, statusCodeKey, code)
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}
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// NotFound checks error for a stored "not found" flag. For example
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// an error from an outgoing HTTP request due to DNS lookup.
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func NotFound(err error) bool {
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_, ok := errors.Value(err, notFoundKey).(struct{})
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return ok
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}
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// SetNotFound will wrap the given error to store a "not found" flag,
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// returning wrapped error. See NotFound() for example use-cases.
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func SetNotFound(err error) error {
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return errors.WithValue(err, notFoundKey, struct{}{})
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}
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// Type checks error for a stored "type" value. For example
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// an error from sending an email may set a value of "smtp"
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// to indicate this was an SMTP error.
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func Type(err error) ErrorType {
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s, _ := errors.Value(err, errorTypeKey).(ErrorType)
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return s
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}
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// SetType will wrap the given error to store a "type" value,
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// returning wrapped error. See Type() for example use-cases.
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func SetType(err error, errType ErrorType) error {
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return errors.WithValue(err, errorTypeKey, errType)
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}
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