15e45b95a9
- Custom index.html with xterm.js for reliable Ctrl+V text paste - Go clipboard-upload service saves pasted images to /tmp/clipboard-images/ - Traefik IngressRoute routes /clipboard/* to upload service (same-origin) - Authentik-protected upload path with strip-prefix middleware
94 lines
2.1 KiB
Go
94 lines
2.1 KiB
Go
package main
|
|
|
|
import (
|
|
"crypto/rand"
|
|
"encoding/hex"
|
|
"encoding/json"
|
|
"fmt"
|
|
"io"
|
|
"log"
|
|
"net/http"
|
|
"os"
|
|
"path/filepath"
|
|
"strings"
|
|
"time"
|
|
)
|
|
|
|
const (
|
|
uploadDir = "/tmp/clipboard-images"
|
|
maxUpload = 10 << 20 // 10MB
|
|
listenAddr = "0.0.0.0:7683"
|
|
)
|
|
|
|
func main() {
|
|
if err := os.MkdirAll(uploadDir, 0755); err != nil {
|
|
log.Fatalf("Failed to create upload dir: %v", err)
|
|
}
|
|
|
|
http.HandleFunc("/upload", handleUpload)
|
|
http.HandleFunc("/health", func(w http.ResponseWriter, r *http.Request) {
|
|
w.Write([]byte("ok"))
|
|
})
|
|
|
|
log.Printf("Clipboard upload service listening on %s, saving to %s", listenAddr, uploadDir)
|
|
log.Fatal(http.ListenAndServe(listenAddr, nil))
|
|
}
|
|
|
|
func handleUpload(w http.ResponseWriter, r *http.Request) {
|
|
if r.Method != http.MethodPost {
|
|
http.Error(w, "POST only", http.StatusMethodNotAllowed)
|
|
return
|
|
}
|
|
|
|
r.Body = http.MaxBytesReader(w, r.Body, maxUpload)
|
|
if err := r.ParseMultipartForm(maxUpload); err != nil {
|
|
http.Error(w, "File too large (max 10MB)", http.StatusRequestEntityTooLarge)
|
|
return
|
|
}
|
|
|
|
file, header, err := r.FormFile("image")
|
|
if err != nil {
|
|
http.Error(w, "Missing 'image' field", http.StatusBadRequest)
|
|
return
|
|
}
|
|
defer file.Close()
|
|
|
|
ct := header.Header.Get("Content-Type")
|
|
if !strings.HasPrefix(ct, "image/") {
|
|
http.Error(w, "Not an image", http.StatusBadRequest)
|
|
return
|
|
}
|
|
|
|
ext := ".png"
|
|
switch ct {
|
|
case "image/jpeg":
|
|
ext = ".jpg"
|
|
case "image/gif":
|
|
ext = ".gif"
|
|
case "image/webp":
|
|
ext = ".webp"
|
|
}
|
|
|
|
randBytes := make([]byte, 4)
|
|
rand.Read(randBytes)
|
|
filename := fmt.Sprintf("%s-%s%s", time.Now().Format("20060102-150405"), hex.EncodeToString(randBytes), ext)
|
|
destPath := filepath.Join(uploadDir, filename)
|
|
|
|
dest, err := os.Create(destPath)
|
|
if err != nil {
|
|
http.Error(w, "Failed to save", http.StatusInternalServerError)
|
|
return
|
|
}
|
|
defer dest.Close()
|
|
|
|
if _, err := io.Copy(dest, file); err != nil {
|
|
os.Remove(destPath)
|
|
http.Error(w, "Failed to save", http.StatusInternalServerError)
|
|
return
|
|
}
|
|
|
|
log.Printf("Saved clipboard image: %s (%s, %d bytes)", destPath, ct, header.Size)
|
|
|
|
w.Header().Set("Content-Type", "application/json")
|
|
json.NewEncoder(w).Encode(map[string]string{"path": destPath})
|
|
}
|