68 lines
2.1 KiB
Go
68 lines
2.1 KiB
Go
package authorization
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import (
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"errors"
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"fmt"
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"net/http"
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"net/url"
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"os"
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"strconv"
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"tydata-server/app/main/api/internal/logic/authorization"
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"tydata-server/app/main/api/internal/svc"
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"tydata-server/app/main/api/internal/types"
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"tydata-server/app/main/model"
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"tydata-server/common/result"
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"tydata-server/common/xerr"
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"tydata-server/pkg/lzkit/validator"
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"github.com/zeromicro/go-zero/core/logx"
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"github.com/zeromicro/go-zero/rest/httpx"
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)
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func DownloadAuthorizationDocumentHandler(svcCtx *svc.ServiceContext) http.HandlerFunc {
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return func(w http.ResponseWriter, r *http.Request) {
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var req types.DownloadAuthorizationDocumentReq
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if err := httpx.Parse(r, &req); err != nil {
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result.ParamErrorResult(r, w, err)
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return
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}
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if err := validator.Validate(req); err != nil {
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result.ParamValidateErrorResult(r, w, err)
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return
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}
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l := authorization.NewDownloadAuthorizationDocumentLogic(r.Context(), svcCtx)
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resp, err := l.DownloadAuthorizationDocument(&req)
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if err != nil {
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if errors.Is(err, model.ErrNotFound) {
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httpx.WriteJson(w, http.StatusNotFound, result.Error(xerr.CUSTOM_ERROR, "授权书不存在"))
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return
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}
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result.HttpResult(r, w, nil, err)
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return
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}
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file, openErr := os.Open(resp.FilePath)
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if openErr != nil {
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logx.Errorf("打开授权书文件失败: filePath=%s, error=%v", resp.FilePath, openErr)
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result.HttpResult(r, w, nil, errors.New("授权书文件不存在"))
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return
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}
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defer file.Close()
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fileInfo, statErr := file.Stat()
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if statErr != nil {
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logx.Errorf("读取授权书文件信息失败: filePath=%s, error=%v", resp.FilePath, statErr)
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result.HttpResult(r, w, nil, errors.New("授权书文件不可用"))
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return
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}
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escapedName := url.PathEscape(resp.FileName)
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w.Header().Set("Content-Type", "application/pdf")
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w.Header().Set("Content-Disposition", fmt.Sprintf("attachment; filename=\"%s\"; filename*=UTF-8''%s", escapedName, escapedName))
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w.Header().Set("Content-Length", strconv.FormatInt(fileInfo.Size(), 10))
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http.ServeContent(w, r, resp.FileName, fileInfo.ModTime(), file)
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}
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}
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