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/*
* GodoOS - A lightweight cloud desktop
* Copyright (C) 2024 https://godoos.com
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 2.1 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package libs
import (
"bytes"
"errors"
"fmt"
"godo/libs"
"log"
"os"
"os/exec"
"path/filepath"
"strings"
)
func RunXpdf(pdfPath string) (string, error) {
tempDir, err := GetTempDir("xpdf-dirs")
if err != nil {
return "", err
}
tempDirSlash := tempDir
if !strings.HasSuffix(tempDir, string(filepath.Separator)) { // 检查路径是否已经以分隔符结尾
tempDirSlash = tempDir + string(filepath.Separator) // 添加分隔符
}
runFile, err := getXpdfDir("pdftopng")
if err != nil {
return "", err
}
// 构建命令
cmdArgs := []string{
runFile,
"-mono",
pdfPath,
tempDirSlash,
}
// 打印将要执行的命令行
cmdStr := strings.Join(cmdArgs, " ")
log.Printf("Executing command: %s\n", cmdStr)
// 使用Command构造命令
cmd := exec.Command(cmdArgs[0], cmdArgs[1:]...)
//var out bytes.Buffer
var stderr bytes.Buffer
//cmd.Stdout = &out // 捕获标准输出
cmd.Stderr = &stderr // 捕获标准错误
// 执行命令
err = cmd.Run()
if err != nil {
// 打印错误信息
log.Printf("执行命令时出错: %v, stderr: %s", err, stderr.String())
return "", err
}
// 输出命令结果
// outputStr := out.String()
// log.Printf("Output command: %s\n", outputStr)
err = GetImages(pdfPath)
if err != nil {
log.Println("Failed to get images:", err)
return "", err
}
dir, err := os.ReadDir(tempDir)
if err != nil {
log.Println("Failed to read directory:", err)
return "", err
}
imagePaths := []string{}
for _, entry := range dir {
absPath := filepath.Join(tempDir, entry.Name())
//log.Println(absPath)
imagePaths = append(imagePaths, absPath)
}
//log.Printf("imagePaths: %v\n", imagePaths)
if len(imagePaths) < 1 {
return "", errors.New("no images found")
}
text, err := RunRapid(imagePaths)
if err != nil {
log.Println("Failed to run rapid:", err)
return "", err
}
defer func() {
if err := os.RemoveAll(tempDir); err != nil {
log.Printf("Error removing temp dir: %s", err)
}
}()
// go func(pdfPath string) {
// }(pdfPath)
return text, nil
}
func GetImages(pdfPath string) error {
cacheDir := libs.GetCacheDir()
tempDirSlash := cacheDir
if !strings.HasSuffix(cacheDir, string(filepath.Separator)) { // 检查路径是否已经以分隔符结尾
tempDirSlash = cacheDir + string(filepath.Separator) // 添加分隔符
}
//log.Printf("tempDirSlash: %s\n", tempDirSlash)
runFile, err := getXpdfDir("pdfimages")
if err != nil {
return err
}
cmdArgs := []string{
runFile,
"-j",
pdfPath,
tempDirSlash,
}
//log.Printf("Executing command: %s\n", strings.Join(cmdArgs, " "))
cmd := exec.Command(cmdArgs[0], cmdArgs[1:]...)
var stderr bytes.Buffer
//cmd.Stdout = &out // 捕获标准输出
cmd.Stderr = &stderr // 捕获标准错误
if err := cmd.Run(); err != nil {
log.Printf("执行命令时出错: %v, stderr: %s", err, stderr.String())
return fmt.Errorf("failed to run pdfimages: %w", err)
}
return nil
}