You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
100 lines
2.7 KiB
100 lines
2.7 KiB
package thumb
|
|
|
|
import (
|
|
"bytes"
|
|
"context"
|
|
"fmt"
|
|
model "github.com/cloudreve/Cloudreve/v3/models"
|
|
"github.com/cloudreve/Cloudreve/v3/pkg/util"
|
|
"github.com/gofrs/uuid"
|
|
"io"
|
|
"os"
|
|
"os/exec"
|
|
"path/filepath"
|
|
"strings"
|
|
)
|
|
|
|
func init() {
|
|
RegisterGenerator(&LibreOfficeGenerator{})
|
|
}
|
|
|
|
type LibreOfficeGenerator struct {
|
|
exts []string
|
|
lastRawExts string
|
|
}
|
|
|
|
func (l *LibreOfficeGenerator) Generate(ctx context.Context, file io.Reader, src string, name string, options map[string]string) (*Result, error) {
|
|
sofficeOpts := model.GetSettingByNames("thumb_libreoffice_path", "thumb_libreoffice_exts", "thumb_encode_method", "temp_path")
|
|
|
|
if l.lastRawExts != sofficeOpts["thumb_libreoffice_exts"] {
|
|
l.exts = strings.Split(sofficeOpts["thumb_libreoffice_exts"], ",")
|
|
}
|
|
|
|
if !util.IsInExtensionList(l.exts, name) {
|
|
return nil, fmt.Errorf("unsupported document format: %w", ErrPassThrough)
|
|
}
|
|
|
|
tempOutputPath := filepath.Join(
|
|
util.RelativePath(sofficeOpts["temp_path"]),
|
|
"thumb",
|
|
fmt.Sprintf("soffice_%s", uuid.Must(uuid.NewV4()).String()),
|
|
)
|
|
|
|
tempInputPath := src
|
|
if tempInputPath == "" {
|
|
// If not local policy files, download to temp folder
|
|
tempInputPath = filepath.Join(
|
|
util.RelativePath(sofficeOpts["temp_path"]),
|
|
"thumb",
|
|
fmt.Sprintf("soffice_%s%s", uuid.Must(uuid.NewV4()).String(), filepath.Ext(name)),
|
|
)
|
|
|
|
// Due to limitations of ffmpeg, we need to write the input file to disk first
|
|
tempInputFile, err := util.CreatNestedFile(tempInputPath)
|
|
if err != nil {
|
|
return nil, fmt.Errorf("failed to create temp file: %w", err)
|
|
}
|
|
|
|
defer os.Remove(tempInputPath)
|
|
defer tempInputFile.Close()
|
|
|
|
if _, err = io.Copy(tempInputFile, file); err != nil {
|
|
return nil, fmt.Errorf("failed to write input file: %w", err)
|
|
}
|
|
|
|
tempInputFile.Close()
|
|
}
|
|
|
|
// Convert the document to an image
|
|
cmd := exec.CommandContext(ctx, sofficeOpts["thumb_libreoffice_path"], "--headless",
|
|
"-nologo", "--nofirststartwizard", "--invisible", "--norestore", "--convert-to",
|
|
sofficeOpts["thumb_encode_method"], "--outdir", tempOutputPath, tempInputPath)
|
|
|
|
// Redirect IO
|
|
var stdErr bytes.Buffer
|
|
cmd.Stdin = file
|
|
cmd.Stderr = &stdErr
|
|
|
|
if err := cmd.Run(); err != nil {
|
|
util.Log().Warning("Failed to invoke LibreOffice: %s", stdErr.String())
|
|
return nil, fmt.Errorf("failed to invoke LibreOffice: %w", err)
|
|
}
|
|
|
|
return &Result{
|
|
Path: filepath.Join(
|
|
tempOutputPath,
|
|
strings.TrimSuffix(filepath.Base(tempInputPath), filepath.Ext(tempInputPath))+"."+sofficeOpts["thumb_encode_method"],
|
|
),
|
|
Continue: true,
|
|
Cleanup: []func(){func() { _ = os.RemoveAll(tempOutputPath) }},
|
|
}, nil
|
|
}
|
|
|
|
func (l *LibreOfficeGenerator) Priority() int {
|
|
return 50
|
|
}
|
|
|
|
func (l *LibreOfficeGenerator) EnableFlag() string {
|
|
return "thumb_libreoffice_enabled"
|
|
}
|