312 lines
10 KiB
Go
312 lines
10 KiB
Go
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package service
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import (
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"bdrp-server/app/main/api/internal/config"
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"bdrp-server/app/main/model"
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"bytes"
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"context"
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"database/sql"
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"fmt"
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"net/url"
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"os"
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"path/filepath"
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"strings"
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"time"
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"github.com/jung-kurt/gofpdf"
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"github.com/pkg/errors"
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"github.com/zeromicro/go-zero/core/logx"
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)
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type AuthorizationService struct {
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config config.Config
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authDocModel model.AuthorizationDocumentModel
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fileStoragePath string
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fileBaseURL string
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}
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// NewAuthorizationService 创建授权书服务实例
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func NewAuthorizationService(c config.Config, authDocModel model.AuthorizationDocumentModel) *AuthorizationService {
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absStoragePath := determineStoragePath()
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return &AuthorizationService{
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config: c,
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authDocModel: authDocModel,
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fileStoragePath: absStoragePath,
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fileBaseURL: c.Authorization.FileBaseURL, // 从配置文件读取
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}
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}
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// GenerateAuthorizationDocument 生成授权书PDF
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func (s *AuthorizationService) GenerateAuthorizationDocument(
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ctx context.Context,
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userID int64,
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orderID int64,
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queryID int64,
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userInfo map[string]interface{},
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) (*model.AuthorizationDocument, error) {
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// 1. 生成PDF内容
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pdfBytes, err := s.generatePDFContent(userInfo)
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if err != nil {
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return nil, errors.Wrapf(err, "生成PDF内容失败")
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}
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// 2. 创建文件存储目录
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year := time.Now().Format("2006")
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month := time.Now().Format("01")
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dirPath := filepath.Join(s.fileStoragePath, year, month)
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if err := os.MkdirAll(dirPath, 0755); err != nil {
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return nil, errors.Wrapf(err, "创建存储目录失败: %s", dirPath)
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}
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// 3. 生成文件名和路径
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fileName := fmt.Sprintf("auth_%d_%d_%s.pdf", userID, orderID, time.Now().Format("20060102_150405"))
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filePath := filepath.Join(dirPath, fileName)
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// 只存储相对路径，不包含域名
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relativePath := fmt.Sprintf("%s/%s/%s", year, month, fileName)
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// 4. 保存PDF文件
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if err := os.WriteFile(filePath, pdfBytes, 0644); err != nil {
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return nil, errors.Wrapf(err, "保存PDF文件失败: %s", filePath)
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}
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// 5. 保存到数据库
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authDoc := &model.AuthorizationDocument{
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UserId: userID,
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OrderId: orderID,
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QueryId: queryID,
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FileName: fileName,
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FilePath: filePath,
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FileUrl: relativePath, // 只存储相对路径
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FileSize: int64(len(pdfBytes)),
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FileType: "pdf",
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Status: "active",
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ExpireTime: sql.NullTime{Valid: false}, // 永久保留，不设置过期时间
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}
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result, err := s.authDocModel.Insert(ctx, nil, authDoc)
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if err != nil {
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// 如果数据库保存失败，删除已创建的文件
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os.Remove(filePath)
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return nil, errors.Wrapf(err, "保存授权书记录失败")
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}
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authDoc.Id, _ = result.LastInsertId()
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logx.Infof("授权书生成成功: userID=%d, orderID=%d, filePath=%s", userID, orderID, filePath)
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return authDoc, nil
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}
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// GetFullFileURL 获取完整的文件访问URL
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func (s *AuthorizationService) GetFullFileURL(relativePath string) string {
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if relativePath == "" {
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return ""
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}
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return fmt.Sprintf("%s/%s", s.fileBaseURL, relativePath)
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}
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// ResolveFilePath 根据存储的路径信息解析出本地文件的绝对路径
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func (s *AuthorizationService) ResolveFilePath(filePath string, relativePath string) string {
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candidates := []string{}
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cleanRelative := func(p string) string {
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p = strings.TrimPrefix(p, "/")
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p = strings.TrimPrefix(p, "\\")
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normalized := filepath.ToSlash(p)
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if strings.HasPrefix(normalized, "http://") || strings.HasPrefix(normalized, "https://") {
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if parsed, err := url.Parse(normalized); err == nil {
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normalized = filepath.ToSlash(strings.TrimPrefix(parsed.Path, "/"))
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}
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}
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normalized = strings.TrimPrefix(normalized, "data/authorization_docs/")
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normalized = strings.TrimPrefix(normalized, "authorization_docs/")
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normalized = strings.TrimPrefix(normalized, "./")
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normalized = strings.TrimPrefix(normalized, "../")
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return normalized
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}
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if filePath != "" {
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candidates = append(candidates, filePath)
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}
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if relativePath != "" {
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candidates = append(candidates, filepath.Join(s.fileStoragePath, filepath.FromSlash(cleanRelative(relativePath))))
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}
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if filePath != "" {
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cleaned := filepath.Clean(filePath)
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if strings.HasPrefix(cleaned, s.fileStoragePath) {
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candidates = append(candidates, cleaned)
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} else {
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trimmed := strings.TrimPrefix(cleaned, "data"+string(os.PathSeparator)+"authorization_docs"+string(os.PathSeparator))
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trimmed = strings.TrimPrefix(trimmed, "data/authorization_docs/")
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if trimmed != cleaned {
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candidates = append(candidates, filepath.Join(s.fileStoragePath, filepath.FromSlash(cleanRelative(trimmed))))
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}
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if !filepath.IsAbs(cleaned) {
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candidates = append(candidates, filepath.Join(s.fileStoragePath, filepath.FromSlash(cleanRelative(cleaned))))
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}
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}
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}
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for _, candidate := range candidates {
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if candidate == "" {
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continue
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}
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pathCandidate := candidate
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if !filepath.IsAbs(pathCandidate) {
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if absPath, err := filepath.Abs(pathCandidate); err == nil {
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pathCandidate = absPath
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}
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}
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if statErr := checkFileExists(pathCandidate); statErr == nil {
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return pathCandidate
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}
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}
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logx.Errorf("授权书文件路径解析失败 filePath=%s fileUrl=%s candidates=%v", filePath, relativePath, candidates)
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return ""
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}
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func determineStoragePath() string {
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candidatePaths := []string{
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"data/authorization_docs",
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"../data/authorization_docs",
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"../../data/authorization_docs",
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"../../../data/authorization_docs",
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}
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for _, candidate := range candidatePaths {
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absPath, err := filepath.Abs(candidate)
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if err != nil {
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logx.Errorf("解析授权书存储路径失败: %s, err=%v", candidate, err)
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continue
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}
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if info, err := os.Stat(absPath); err == nil && info.IsDir() {
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logx.Infof("授权书存储路径选择: %s", absPath)
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return absPath
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}
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}
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// 如果没有现成的目录，使用第一个候选的绝对路径
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absPath, err := filepath.Abs(candidatePaths[0])
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if err != nil {
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logx.Errorf("解析默认授权书存储路径失败，使用相对路径: %s, err=%v", candidatePaths[0], err)
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return candidatePaths[0]
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}
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logx.Infof("授权书存储路径创建: %s", absPath)
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return absPath
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}
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func checkFileExists(path string) error {
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info, err := os.Stat(path)
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if err != nil {
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return err
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}
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if info.IsDir() {
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return fmt.Errorf("path %s is directory", path)
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}
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return nil
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}
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// generatePDFContent 生成PDF内容
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func (s *AuthorizationService) generatePDFContent(userInfo map[string]interface{}) ([]byte, error) {
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// 创建PDF文档
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pdf := gofpdf.New("P", "mm", "A4", "")
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pdf.AddPage()
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// 添加中文字体支持 - 参考imageService的路径处理方式
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fontPaths := []string{
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"static/SIMHEI.TTF", // 相对于工作目录的路径（与imageService一致）
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"/app/static/SIMHEI.TTF", // Docker容器内的字体文件
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"app/main/api/static/SIMHEI.TTF", // 开发环境备用路径
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}
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// 尝试添加字体
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fontAdded := false
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for _, fontPath := range fontPaths {
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if _, err := os.Stat(fontPath); err == nil {
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pdf.AddUTF8Font("ChineseFont", "", fontPath)
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fontAdded = true
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logx.Infof("成功加载字体: %s", fontPath)
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break
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} else {
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logx.Debugf("字体文件不存在: %s, 错误: %v", fontPath, err)
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}
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}
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// 如果没有找到字体文件，使用默认字体，并记录警告
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if !fontAdded {
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pdf.SetFont("Arial", "", 12)
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logx.Errorf("未找到中文字体文件，使用默认Arial字体，可能无法正确显示中文")
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} else {
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// 设置默认字体
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pdf.SetFont("ChineseFont", "", 12)
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}
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// 获取用户信息
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name := getUserInfoString(userInfo, "name")
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idCard := getUserInfoString(userInfo, "id_card")
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// 生成当前日期
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currentDate := time.Now().Format("2006年1月2日")
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// 设置标题样式 - 大字体、居中
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if fontAdded {
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pdf.SetFont("ChineseFont", "", 20) // 使用20号字体
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} else {
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pdf.SetFont("Arial", "", 20)
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}
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pdf.CellFormat(0, 15, "授权书", "", 1, "C", false, 0, "")
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// 添加空行
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pdf.Ln(5)
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// 设置正文样式 - 正常字体
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if fontAdded {
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pdf.SetFont("ChineseFont", "", 12)
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} else {
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pdf.SetFont("Arial", "", 12)
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}
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// 构建授权书内容（与前端 Authorization.vue 保持一致）
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content := fmt.Sprintf(`戎行技术有限公司：
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本人（姓名：%s／身份证号码：%s）拟向贵司申请业务，贵司需要了解本人相关状况，用于查询大数据分析报告，因此本人特同意并不可撤销的授权：
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（一）贵司向依法成立的第三方服务商（包括但不限于天津津北数字产业发展集团有限公司）根据本人提交的信息进行核实；并有权通过前述第三方服务机构查询、使用本人的身份信息、电话号码等，查询本人信息（包括但不限于学历、婚姻、资产状况及对信息主体产生负面影响的不良信息），出具相关报告。
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（二）第三方服务商应当在上述处理目的、处理方式和个人信息的种类等范围内处理个人信息。变更原先的处理目的、处理方式的，应当依法重新取得您的同意。
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本人在此声明已充分理解上述授权条款含义，知晓并自愿承担上述因收集等本人数据可能会给本人的生活行为（评分）结果产生不利影响，以及该等数据被使用者依法提供给第三方后被他人不当利用的风险，但本人仍同意上述授权。
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特别提示：
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为了保障您的合法权益，请您务必阅读并充分理解与遵守本授权书；若您不接受本授权书的任何条款，请您立即终止授权。贵司已经对上述事宜及其风险向本人做了充分说明，本人已知晓并同意。
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你通过“赤眉”APP或代理商推广查询模式，自愿支付相应费用，用于购买戎行技术有限公司的大数据报告产品。
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你向戎行技术有限公司的支付方式为：戎行技术有限公司及其关联公司的支付宝及微信账户。
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本授权书一经本人在网上点击勾选同意即完成签署。本授权书是本人真实意思表示，本人同意承担由此带来的一切法律后果。
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授权人：%s
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身份证号：%s
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签署时间：%s`, name, idCard, name, idCard, currentDate)
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// 将内容写入PDF
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pdf.MultiCell(0, 6, content, "", "", false)
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// 生成PDF字节数组
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var buf bytes.Buffer
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err := pdf.Output(&buf)
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if err != nil {
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return nil, errors.Wrapf(err, "生成PDF字节数组失败")
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}
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return buf.Bytes(), nil
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}
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// getUserInfoString 安全获取用户信息字符串
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func getUserInfoString(userInfo map[string]interface{}, key string) string {
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if value, exists := userInfo[key]; exists {
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if str, ok := value.(string); ok {
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return str
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}
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}
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return ""
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}
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