mirror of
https://github.com/go-vikunja/vikunja.git
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kolaente
f930d895c9
Attachment previews now decode through imageutils.Decode, which holds an image's pixels against one process-wide budget until the caller is done with the decoded image. Other decode sites move onto it next.
72 lines
2.1 KiB
Go
72 lines
2.1 KiB
Go
// Vikunja is a to-do list application to facilitate your life.
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// Copyright 2018-present Vikunja and contributors. All rights reserved.
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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 <https://www.gnu.org/licenses/>.
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package imageutils
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import (
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"errors"
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"fmt"
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"net/http"
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"code.vikunja.io/api/pkg/web"
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)
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// ErrImageTooLarge rejects hostile dimensions before decoding (GHSA-4vh2-39rq-rq8j).
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type ErrImageTooLarge struct {
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Width int
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Height int
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}
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func (err *ErrImageTooLarge) Error() string {
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return fmt.Sprintf("image dimensions %dx%d are invalid or exceed the maximum of %d pixels", err.Width, err.Height, MaxPixels)
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}
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const ErrCodeImageTooLarge = 4032
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func (err *ErrImageTooLarge) HTTPError() web.HTTPError {
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return web.HTTPError{
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HTTPCode: http.StatusBadRequest,
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Code: ErrCodeImageTooLarge,
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Message: fmt.Sprintf("Image dimensions %dx%d are invalid or exceed the maximum of %d pixels.", err.Width, err.Height, MaxPixels),
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}
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}
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func IsErrImageTooLarge(err error) bool {
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var e *ErrImageTooLarge
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return errors.As(err, &e)
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}
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type ErrDecodeBusy struct{}
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func (err ErrDecodeBusy) Error() string {
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return "Timed out waiting for capacity to decode an image"
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}
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const ErrCodeDecodeBusy = 4040
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func (err ErrDecodeBusy) HTTPError() web.HTTPError {
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return web.HTTPError{
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HTTPCode: http.StatusServiceUnavailable,
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Code: ErrCodeDecodeBusy,
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Message: "The server is busy processing other images, please try again later.",
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}
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}
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func IsErrDecodeBusy(err error) bool {
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var busy ErrDecodeBusy
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return errors.As(err, &busy)
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}
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