mirror of
https://codeberg.org/forgejo/forgejo.git
synced 2024-11-01 07:09:21 +01:00
0ebb45cfe7
Found using
`find . -type f -name '*.go' -print -exec vim {} -c
':%s/fmt\.Errorf(\(.*\)%v\(.*\)err/fmt.Errorf(\1%w\2err/g' -c ':wq' \;`
Co-authored-by: 6543 <6543@obermui.de>
Co-authored-by: Andrew Thornton <art27@cantab.net>
Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>
85 lines
2.4 KiB
Go
85 lines
2.4 KiB
Go
// Copyright 2014 The Gogs Authors. All rights reserved.
|
|
// Use of this source code is governed by a MIT-style
|
|
// license that can be found in the LICENSE file.
|
|
|
|
package avatar
|
|
|
|
import (
|
|
"bytes"
|
|
"fmt"
|
|
"image"
|
|
"image/color"
|
|
|
|
_ "image/gif" // for processing gif images
|
|
_ "image/jpeg" // for processing jpeg images
|
|
_ "image/png" // for processing png images
|
|
|
|
"code.gitea.io/gitea/modules/avatar/identicon"
|
|
"code.gitea.io/gitea/modules/setting"
|
|
|
|
"github.com/nfnt/resize"
|
|
"github.com/oliamb/cutter"
|
|
)
|
|
|
|
// AvatarSize returns avatar's size
|
|
const AvatarSize = 290
|
|
|
|
// RandomImageSize generates and returns a random avatar image unique to input data
|
|
// in custom size (height and width).
|
|
func RandomImageSize(size int, data []byte) (image.Image, error) {
|
|
// we use white as background, and use dark colors to draw blocks
|
|
imgMaker, err := identicon.New(size, color.White, identicon.DarkColors...)
|
|
if err != nil {
|
|
return nil, fmt.Errorf("identicon.New: %w", err)
|
|
}
|
|
return imgMaker.Make(data), nil
|
|
}
|
|
|
|
// RandomImage generates and returns a random avatar image unique to input data
|
|
// in default size (height and width).
|
|
func RandomImage(data []byte) (image.Image, error) {
|
|
return RandomImageSize(AvatarSize, data)
|
|
}
|
|
|
|
// Prepare accepts a byte slice as input, validates it contains an image of an
|
|
// acceptable format, and crops and resizes it appropriately.
|
|
func Prepare(data []byte) (*image.Image, error) {
|
|
imgCfg, _, err := image.DecodeConfig(bytes.NewReader(data))
|
|
if err != nil {
|
|
return nil, fmt.Errorf("DecodeConfig: %w", err)
|
|
}
|
|
if imgCfg.Width > setting.Avatar.MaxWidth {
|
|
return nil, fmt.Errorf("Image width is too large: %d > %d", imgCfg.Width, setting.Avatar.MaxWidth)
|
|
}
|
|
if imgCfg.Height > setting.Avatar.MaxHeight {
|
|
return nil, fmt.Errorf("Image height is too large: %d > %d", imgCfg.Height, setting.Avatar.MaxHeight)
|
|
}
|
|
|
|
img, _, err := image.Decode(bytes.NewReader(data))
|
|
if err != nil {
|
|
return nil, fmt.Errorf("Decode: %w", err)
|
|
}
|
|
|
|
if imgCfg.Width != imgCfg.Height {
|
|
var newSize, ax, ay int
|
|
if imgCfg.Width > imgCfg.Height {
|
|
newSize = imgCfg.Height
|
|
ax = (imgCfg.Width - imgCfg.Height) / 2
|
|
} else {
|
|
newSize = imgCfg.Width
|
|
ay = (imgCfg.Height - imgCfg.Width) / 2
|
|
}
|
|
|
|
img, err = cutter.Crop(img, cutter.Config{
|
|
Width: newSize,
|
|
Height: newSize,
|
|
Anchor: image.Point{ax, ay},
|
|
})
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
}
|
|
|
|
img = resize.Resize(AvatarSize, AvatarSize, img, resize.Bilinear)
|
|
return &img, nil
|
|
}
|