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Split up max value for img height and with into values for img and banner

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This commit is contained in:
Jason Streifling
2024-10-27 15:05:11 +01:00
parent d86b9027bf
commit 878f57af08
5 changed files with 82 additions and 115 deletions
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30
cmd/backend/images.go
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@ -1,6 +1,7 @@
package backend
import (
"encoding/base64"
"fmt"
"image"
"io"
@ -13,7 +14,7 @@ import (
var ErrUnsupportedFormat error = image.ErrFormat // used internally by imaging
func SaveImage(c *Config, src io.Reader) (string, error) {
func SaveImage(src io.Reader, maxHeight, maxWidth int, path string) (string, error) {
img, err := imaging.Decode(src, imaging.AutoOrientation(true))
if err != nil {
if err == ErrUnsupportedFormat {
@ -22,15 +23,15 @@ func SaveImage(c *Config, src io.Reader) (string, error) {
return "", fmt.Errorf("error decoding image: %v", err)
}
if img.Bounds().Dy() > c.MaxImgHeight {
img = imaging.Resize(img, 0, c.MaxImgHeight, imaging.Lanczos)
if img.Bounds().Dy() > maxHeight {
img = imaging.Resize(img, 0, maxHeight, imaging.Lanczos)
}
if img.Bounds().Dx() > c.MaxImgWidth {
img = imaging.Resize(img, c.MaxImgWidth, 0, imaging.Lanczos)
if img.Bounds().Dx() > maxWidth {
img = imaging.Resize(img, maxWidth, 0, imaging.Lanczos)
}
filename := fmt.Sprint(uuid.New(), ".webp")
file, err := os.Create(c.PicsDir + "/" + filename)
file, err := os.Create(path + filename)
if err != nil {
return "", fmt.Errorf("error creating new image file: %v", err)
}
@ -42,3 +43,20 @@ func SaveImage(c *Config, src io.Reader) (string, error) {
return filename, nil
}
func ServeBase64Image(c *Config, filename string) (string, error) {
file := c.PicsDir + "/" + filename
img, err := os.Open(file)
if err != nil {
return "", fmt.Errorf("error opening file %v: %v", file, err)
}
defer img.Close()
imgBytes, err := io.ReadAll(img)
if err != nil {
return "", fmt.Errorf("error turning %v into bytes: %v", file, err)
}
return base64.StdEncoding.EncodeToString(imgBytes), nil
}