107 lines
2.1 KiB
Go
107 lines
2.1 KiB
Go
/*
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Copyright © 2023 Seednode <seednode@seedno.de>
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*/
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package formats
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import (
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"errors"
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"fmt"
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"image"
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_ "image/gif"
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_ "image/jpeg"
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_ "image/png"
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"os"
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_ "golang.org/x/image/bmp"
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_ "golang.org/x/image/webp"
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)
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type Dimensions struct {
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Width int
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Height int
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}
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func RegisterImageFormats() *SupportedFormat {
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return &SupportedFormat{
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Css: ``,
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Title: func(queryParams, fileUri, filePath, fileName, mime string) string {
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dimensions, err := ImageDimensions(filePath)
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if err != nil {
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fmt.Println(err)
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}
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return fmt.Sprintf(`<title>%s (%dx%d)</title>`,
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fileName,
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dimensions.Width,
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dimensions.Height)
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},
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Body: func(queryParams, fileUri, filePath, fileName, mime string) string {
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dimensions, err := ImageDimensions(filePath)
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if err != nil {
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fmt.Println(err)
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}
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return fmt.Sprintf(`<a href="/%s"><img src="%s" width="%d" height="%d" type="%s" alt="Roulette selected: %s"></a>`,
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queryParams,
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fileUri,
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dimensions.Width,
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dimensions.Height,
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mime,
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fileName)
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},
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Extensions: []string{
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`.apng`,
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`.avif`,
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`.bmp`,
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`.gif`,
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`.jpg`,
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`.jpeg`,
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`.jfif`,
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`.pjp`,
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`.pjpeg`,
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`.png`,
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`.svg`,
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`.webp`,
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},
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MimeTypes: []string{
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`image/apng`,
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`image/avif`,
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`image/bmp`,
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`image/gif`,
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`image/jpeg`,
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`image/png`,
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`image/svg+xml`,
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`image/webp`,
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},
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Validate: func(filePath string) bool {
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return true
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},
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}
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}
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func ImageDimensions(path string) (*Dimensions, error) {
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file, err := os.Open(path)
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switch {
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case errors.Is(err, os.ErrNotExist):
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fmt.Printf("File %s does not exist\n", path)
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return &Dimensions{}, nil
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case err != nil:
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fmt.Printf("File %s open returned error: %s\n", path, err)
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return &Dimensions{}, err
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}
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defer file.Close()
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decodedConfig, _, err := image.DecodeConfig(file)
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switch {
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case errors.Is(err, image.ErrFormat):
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fmt.Printf("File %s has invalid image format\n", path)
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return &Dimensions{Width: 0, Height: 0}, nil
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case err != nil:
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fmt.Printf("File %s decode returned error: %s\n", path, err)
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return &Dimensions{}, err
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}
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return &Dimensions{Width: decodedConfig.Width, Height: decodedConfig.Height}, nil
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}
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