Micropub endpoint for my blog https://jlelse.blog/posts/hugo-micropub/
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package main
import (
"errors"
"io/ioutil"
"os"
"sort"
"strings"
tfgo "codeberg.org/jlelse/tinify"
)
type ImageCompression interface {
Compress(url string) (location string, err error)
}
// Tinify
type Tinify struct {
// API Key
key string
}
func (t *Tinify) Compress(url string) (location string, err error) {
fileExtension := func() string {
spliced := strings.Split(url, ".")
return spliced[len(spliced)-1]
}()
supportedTypes := []string{"jpg", "jpeg", "png"}
sort.Strings(supportedTypes)
i := sort.SearchStrings(supportedTypes, strings.ToLower(fileExtension))
if !(i < len(supportedTypes) && supportedTypes[i] == strings.ToLower(fileExtension)) {
err = errors.New("file not supported")
return
}
tfgo.SetKey(t.key)
s, e := tfgo.FromUrl(url)
if e != nil {
err = errors.New("failed to compress file")
return
}
e = s.Resize(&tfgo.ResizeOption{
Method: tfgo.ResizeMethodScale,
Width: 2000,
})
if e != nil {
err = errors.New("failed to resize file")
return
}
file, e := ioutil.TempFile("", "tiny-*."+fileExtension)
if e != nil {
err = errors.New("failed to create temporary file")
return
}
defer func() {
_ = file.Close()
_ = os.Remove(file.Name())
}()
e = s.ToFile(file.Name())
if e != nil {
err = errors.New("failed to save compressed file")
return
}
hashFile, e := os.Open(file.Name())
defer func() { _ = hashFile.Close() }()
if e != nil {
err = errors.New("failed to open temporary file")
return
}
fileName, err := getSHA256(hashFile)
if err != nil {
return
}
location, err = SelectedMediaStorage.Upload(fileName+"."+fileExtension, file)
return
}