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