Files
olons_server/internal/httpapi/ai_export_oss.go
T

255 lines
7.6 KiB
Go

package httpapi
import (
"bytes"
"context"
"crypto/rand"
"encoding/base32"
"encoding/base64"
"encoding/binary"
"fmt"
"io"
"net/http"
"net/url"
"os"
"path"
"strconv"
"strings"
"time"
"git.118im.com/im_team/im_workbench/internal/auth"
"git.118im.com/im_team/im_workbench/internal/managerconfig"
"git.118im.com/im_team/im_workbench/internal/store"
aliyunoss "github.com/aliyun/aliyun-oss-go-sdk/oss"
)
const aiTableExportDocxMIME = "application/vnd.openxmlformats-officedocument.wordprocessingml.document"
type aiExportedFile struct {
FileID string
FileName string
DownloadURL string
}
type ossUploadConfig struct {
Enabled bool
Endpoint string
Bucket string
AccessKeyID string
AccessKeySecret string
ServeURL string
CacheControl string
}
func (a *API) uploadAITableAnalysisExport(ctx context.Context, r *http.Request, st *store.Store, p *auth.Principal, item *store.AITableAnalysis) (*aiExportedFile, error) {
cfg, err := a.ossUploadConfig(ctx)
if err != nil {
return nil, err
}
data, err := aiTableAnalysisDocx(item)
if err != nil {
return nil, err
}
fileID := newFileUploadID()
publicID, storageID := formatFileUploadID(fileID)
createdAt := time.Now().UTC()
objectKey := path.Join("tenants", strconv.FormatInt(p.TenantID, 10), createdAt.Format("2006"), createdAt.Format("01"), storageID)
client, err := aliyunoss.New(cfg.Endpoint, cfg.AccessKeyID, cfg.AccessKeySecret)
if err != nil {
return nil, err
}
bucket, err := client.Bucket(cfg.Bucket)
if err != nil {
return nil, err
}
options := []aliyunoss.Option{aliyunoss.ContentType(aiTableExportDocxMIME)}
if cfg.CacheControl != "" {
options = append(options, aliyunoss.CacheControl(cfg.CacheControl))
}
if err := bucket.PutObject(objectKey, bytes.NewReader(data), options...); err != nil {
return nil, err
}
etag := ""
if meta, err := bucket.GetObjectDetailedMeta(objectKey); err == nil {
etag = strings.Trim(meta.Get("ETag"), `"`)
}
fileName := aiTableExportFileName(item)
fileURLName := publicID + ".docx"
if err := st.SaveCompletedFileUpload(ctx, store.CompletedFileUpload{
ID: fileID, UserID: p.UserID, MIMEType: aiTableExportDocxMIME, Size: int64(len(data)),
ETag: etag, Location: objectKey, CreatedAt: createdAt,
}); err != nil {
return nil, err
}
if err := st.UpdateAITableAnalysisExportFileID(ctx, p.UserID, item.RecordID, fileURLName); err != nil {
return nil, err
}
return &aiExportedFile{
FileID: fileURLName,
FileName: fileName,
DownloadURL: publicFileDownloadURL(r, cfg.ServeURL, fileURLName),
}, nil
}
func downloadWorkbenchFileToTemp(r *http.Request, fileID, fileType string) (string, func(), error) {
fileID = strings.TrimSpace(fileID)
if fileID == "" {
return "", func() {}, fmt.Errorf("empty file id")
}
req, err := http.NewRequestWithContext(r.Context(), http.MethodGet, absoluteURL(r, "/v0/file/s/"+url.PathEscape(fileID)), nil)
if err != nil {
return "", func() {}, err
}
copyHeader(req, r, "Authorization")
copyHeader(req, r, "X-MeetingIM-APIKey")
copyHeader(req, r, "X-Tenant-Code")
copyHeader(req, r, "X-IM-Schema")
copyHeader(req, r, "X-Request-ID")
if auth := strings.TrimSpace(r.Header.Get("X-MeetingIM-Auth")); auth != "" {
req.Header.Set("X-MeetingIM-Auth", auth)
} else if token := bearerTokenFromHeader(r.Header.Get("Authorization")); token != "" {
req.Header.Set("X-MeetingIM-Auth", "token "+token)
}
resp, err := http.DefaultClient.Do(req)
if err != nil {
return "", func() {}, err
}
defer resp.Body.Close()
if resp.StatusCode < 200 || resp.StatusCode >= 300 {
return "", func() {}, fmt.Errorf("file service returned %d", resp.StatusCode)
}
return responseBodyToTemp(resp.Body, fileType)
}
func (a *API) downloadOSSObjectToTemp(ctx context.Context, objectKey, fileType string) (string, func(), error) {
objectKey = strings.Trim(strings.TrimSpace(objectKey), "/")
if objectKey == "" {
return "", func() {}, fmt.Errorf("empty object key")
}
cfg, err := a.ossUploadConfig(ctx)
if err != nil {
return "", func() {}, err
}
client, err := aliyunoss.New(cfg.Endpoint, cfg.AccessKeyID, cfg.AccessKeySecret)
if err != nil {
return "", func() {}, err
}
bucket, err := client.Bucket(cfg.Bucket)
if err != nil {
return "", func() {}, err
}
reader, err := bucket.GetObject(objectKey)
if err != nil {
return "", func() {}, err
}
defer reader.Close()
return responseBodyToTemp(reader, fileType)
}
func responseBodyToTemp(reader io.Reader, fileType string) (string, func(), error) {
suffix := "." + strings.TrimLeft(strings.ToLower(strings.TrimSpace(fileType)), ".")
if suffix == "." {
suffix = ".table"
}
tmp, err := os.CreateTemp("", "im-workbench-ai-table-*"+suffix)
if err != nil {
return "", func() {}, err
}
tmpPath := tmp.Name()
cleanup := func() { _ = os.Remove(tmpPath) }
if _, err := io.Copy(tmp, reader); err != nil {
_ = tmp.Close()
cleanup()
return "", func() {}, err
}
if err := tmp.Close(); err != nil {
cleanup()
return "", func() {}, err
}
return tmpPath, cleanup, nil
}
func copyHeader(dst *http.Request, src *http.Request, key string) {
if value := strings.TrimSpace(src.Header.Get(key)); value != "" {
dst.Header.Set(key, value)
}
}
func bearerTokenFromHeader(value string) string {
token, ok := strings.CutPrefix(strings.TrimSpace(value), "Bearer ")
if !ok {
return ""
}
return strings.TrimSpace(token)
}
func (a *API) ossUploadConfig(ctx context.Context) (ossUploadConfig, error) {
values, err := managerconfig.New(a.manager).ThirdPartyConfig(ctx, "im_third_party",
"oss_enabled",
"oss_endpoint",
"oss_bucket",
"oss_access_key_id",
"oss_access_key_secret",
"oss_serve_url",
"oss_cache_control",
)
if err != nil {
return ossUploadConfig{}, err
}
cfg := ossUploadConfig{
Enabled: parseConfigBool(values["oss_enabled"]),
Endpoint: strings.TrimSpace(values["oss_endpoint"]),
Bucket: strings.TrimSpace(values["oss_bucket"]),
AccessKeyID: strings.TrimSpace(values["oss_access_key_id"]),
AccessKeySecret: strings.TrimSpace(values["oss_access_key_secret"]),
ServeURL: strings.TrimSpace(values["oss_serve_url"]),
CacheControl: strings.TrimSpace(values["oss_cache_control"]),
}
if cfg.ServeURL == "" {
cfg.ServeURL = "/v0/file/s/"
}
if !cfg.Enabled || cfg.Endpoint == "" || cfg.Bucket == "" || cfg.AccessKeyID == "" || cfg.AccessKeySecret == "" {
return ossUploadConfig{}, fmt.Errorf("oss config incomplete")
}
return cfg, nil
}
func parseConfigBool(value string) bool {
switch strings.ToLower(strings.TrimSpace(value)) {
case "1", "true", "yes", "on", "enabled":
return true
default:
return false
}
}
func newFileUploadID() int64 {
var random [8]byte
if _, err := rand.Read(random[:]); err != nil {
return time.Now().UnixNano()
}
suffix := int64(binary.LittleEndian.Uint64(random[:]) & ((1 << 20) - 1))
return (time.Now().UnixMilli() << 20) | suffix
}
func formatFileUploadID(id int64) (publicID string, storageID string) {
encrypted := encryptUID(id)
publicID = base64.URLEncoding.WithPadding(base64.NoPadding).EncodeToString(encrypted)
storageID = strings.ToLower(base32.StdEncoding.WithPadding(base32.NoPadding).EncodeToString(encrypted))
return publicID, storageID
}
func publicFileDownloadURL(r *http.Request, serveURL, fileName string) string {
serveURL = strings.TrimSpace(serveURL)
if strings.HasPrefix(serveURL, "http://") || strings.HasPrefix(serveURL, "https://") {
return strings.TrimRight(serveURL, "/") + "/" + fileName
}
if serveURL == "" {
serveURL = "/v0/file/s/"
}
if !strings.HasPrefix(serveURL, "/") {
serveURL = "/" + serveURL
}
return absoluteURL(r, strings.TrimRight(serveURL, "/")+"/"+fileName)
}