diff --git a/cutpaste.go b/cutpaste.go
index f99b076d..e2c004e3 100644
--- a/cutpaste.go
+++ b/cutpaste.go
@@ -168,6 +168,11 @@ func edtrenameAPI(w http.ResponseWriter, r *http.Request, auth *Profile) {
 		Dst string `json:"dst" yaml:"dst" xml:"dst"`
 		Ovw bool   `json:"overwrite,omitempty" yaml:"overwrite,omitempty" xml:"overwrite,omitempty,attr"`
 	}
+	var ret struct {
+		XMLName xml.Name `json:"-" yaml:"-" xml:"ret"`
+
+		Prop FileKit `json:"prop" yaml:"prop" xml:"prop"`
+	}
 
 	// get arguments
 	if err = ParseBody(w, r, &arg); err != nil {
@@ -234,9 +239,9 @@ func edtrenameAPI(w http.ResponseWriter, r *http.Request, auth *Profile) {
 		WriteError500(w, r, err, AECedtrenstat)
 		return
 	}
-	var prop = MakeProp(session, dstpath, fi)
+	ret.Prop.Setup(session, dstpath, fi)
 
-	WriteOK(w, r, prop)
+	WriteOK(w, r, &ret)
 }
 
 // APIHANDLER
diff --git a/fileprop.go b/fileprop.go
index 9035bb4b..64994aec 100644
--- a/fileprop.go
+++ b/fileprop.go
@@ -5,36 +5,6 @@ import (
 	"path"
 )
 
-func GetPropSize(p any) (int64, bool) {
-	switch v := p.(type) {
-	case *FileKit:
-		return v.Size, true
-	case *DirKit:
-		return v.Size, true
-	case *ExifKit:
-		return v.Size, true
-	case *TagKit:
-		return v.Size, true
-	default:
-		return 0, false
-	}
-}
-
-func GetPropType(p any) (FT_t, bool) {
-	switch v := p.(type) {
-	case *FileKit:
-		return v.Type, true
-	case *DirKit:
-		return v.Type, true
-	case *ExifKit:
-		return v.Type, true
-	case *TagKit:
-		return v.Type, true
-	default:
-		return 0, false
-	}
-}
-
 // FileProp is common file properties chunk.
 type FileProp struct {
 	Name string `xorm:"'name'" json:"name" yaml:"name" xml:"name"`
@@ -53,7 +23,8 @@ func (fp *FileProp) Setup(fi fs.FileInfo) {
 
 // PuidProp encapsulated path unique ID value for some properties kit.
 type PuidProp struct {
-	PUID Puid_t `xorm:"'puid'" json:"puid" yaml:"puid" xml:"puid"`
+	PUID   Puid_t `xorm:"'puid'" json:"puid" yaml:"puid" xml:"puid"`
+	Shared bool   `xorm:"'shared'" json:"shared" yaml:"shared" xml:"shared"`
 }
 
 func (pp *PuidProp) Setup(session *Session, syspath string) {
@@ -146,27 +117,4 @@ func (dk *DirKit) Setup(session *Session, syspath string, fi fs.FileInfo) {
 	dk.DirProp, _ = DirStoreGet(session, dk.PUID)
 }
 
-// MakeProp is file properties factory.
-func MakeProp(session *Session, syspath string, fi fs.FileInfo) any {
-	if fi.IsDir() {
-		var dk DirKit
-		dk.Setup(session, syspath, fi)
-		return &dk
-	}
-	var ext = GetFileExt(syspath)
-	if IsTypeID3(ext) {
-		var tk TagKit
-		tk.Setup(session, syspath, fi)
-		return &tk
-	} else if IsTypeEXIF(ext) {
-		var ek ExifKit
-		ek.Setup(session, syspath, fi)
-		return &ek
-	} else {
-		var fk FileKit
-		fk.Setup(session, syspath, fi)
-		return &fk
-	}
-}
-
 // The End.
diff --git a/folder.go b/folder.go
index 57942323..6e477ab9 100644
--- a/folder.go
+++ b/folder.go
@@ -168,12 +168,13 @@ func folderAPI(w http.ResponseWriter, r *http.Request) {
 				WriteError500(w, r, err, AECfolderhome)
 				return
 			}
-			go func() {
+			go SqlSession(func(session *Session) (res any, err error) {
 				DirStoreSet(session, &DirStore{
 					Puid: puid,
 					Prop: lstp,
 				})
-			}()
+				return
+			})
 		case PUIDdrives:
 			if ret.List, err = prf.ScanRoots(session); err != nil {
 				WriteError500(w, r, err, AECfolderdrives)
diff --git a/frontend/devmode/cards.js b/frontend/devmode/cards.js
index f15d55c1..0eb5ec53 100644
--- a/frontend/devmode/cards.js
+++ b/frontend/devmode/cards.js
@@ -1781,7 +1781,7 @@ const VueMapCard = {
 							uncached.push(tp)
 						}
 					}
-					this.addmarkers(gpslist);
+					self.addmarkers(gpslist);
 					// check cached state loop
 					if (!uncached.length) {
 						return;
@@ -1800,7 +1800,7 @@ const VueMapCard = {
 									}
 								}
 							}
-							this.addmarkers(gpslist);
+							self.addmarkers(gpslist);
 							return;
 						}
 					} else {
diff --git a/frontend/devmode/devmode.js b/frontend/devmode/devmode.js
index abf957cd..06affc92 100644
--- a/frontend/devmode/devmode.js
+++ b/frontend/devmode/devmode.js
@@ -3,7 +3,7 @@
 // This file is included only for developer mode linkage
 
 const buildvers = "0.9.0";
-const builddate = "2022.12.11";
+const builddate = "2023.01.04";
 console.info("version: %s, builton: %s", buildvers, builddate);
 console.info("starts in developer mode");
 
diff --git a/frontend/devmode/mainpage.js b/frontend/devmode/mainpage.js
index 9aa5f97c..cb685b6c 100644
--- a/frontend/devmode/mainpage.js
+++ b/frontend/devmode/mainpage.js
@@ -449,8 +449,6 @@ const VueMainApp = {
 			readonly: true, // can't modify content of folder
 
 			selfile: null, // current selected item
-			shared: [], // list of shared items
-
 			delfile: null, // file to delete
 			delensured: false, // deletion request
 
@@ -743,7 +741,6 @@ const VueMainApp = {
 
 			// update folder settings
 			this.flist = newlist ?? [];
-			this.updateshared();
 
 			// update page data
 			this.curscan = new Date(Date.now());
@@ -753,18 +750,6 @@ const VueMainApp = {
 			this.$refs.page.scrollTop = 0;
 		},
 
-		async fetchshared() {
-			const response = await fetchajaxauth("POST", "/api/res/folder", {
-				aid: this.aid, path: PUID.shares
-			});
-			traceajax(response);
-			if (!response.ok) {
-				throw new HttpError(response.status, response.data);
-			}
-			this.shared = response.data.list ?? [];
-			this.updateshared();
-		},
-
 		async fetchshareadd(file) {
 			const response = await fetchajaxauth("POST", "/api/share/add", {
 				aid: this.aid,
@@ -775,7 +760,6 @@ const VueMainApp = {
 				throw new HttpError(response.status, response.data);
 			}
 			file.shared = true; // Vue.set
-			this.shared.push(file);
 		},
 
 		async fetchsharedel(file) {
@@ -791,26 +775,6 @@ const VueMainApp = {
 			// update folder settings
 			if (response.data.deleted) { // on ok
 				file.shared = false; // Vue.set
-				for (let i = 0; i < this.shared.length;) {
-					if (this.shared[i].puid === file.puid) {
-						this.shared.splice(i, 1);
-					} else {
-						i++;
-					}
-				}
-			}
-		},
-
-		updateshared() {
-			for (const file of this.flist) {
-				let sf = false;
-				for (const shr of this.shared) {
-					if (shr.puid === file.puid) {
-						sf = true;
-						break;
-					}
-				}
-				file.shared = sf; // Vue.set
 			}
 		},
 
@@ -937,9 +901,6 @@ const VueMainApp = {
 				eventHub.emit('ajax', +1);
 				try {
 					await this.fetchfolder({ aid: this.aid, path: this.curpuid ?? this.curpath });
-					if (this.isadmin && this.curpuid !== PUID.shares) {
-						await this.fetchshared(); // get shares
-					}
 				} catch (e) {
 					ajaxfail(e);
 				} finally {
@@ -1204,9 +1165,6 @@ const VueMainApp = {
 
 				// open route and push history step
 				await this.fetchfolder(hist);
-				if (this.isadmin && hist.puid !== PUID.shares) {
-					await this.fetchshared(); // get shares
-				}
 				this.pushhist(hist);
 			} catch (e) {
 				ajaxfail(e);
diff --git a/frontend/devmode/relmode.js b/frontend/devmode/relmode.js
index 501ec18e..35d02fa5 100644
--- a/frontend/devmode/relmode.js
+++ b/frontend/devmode/relmode.js
@@ -3,7 +3,7 @@
 // This file is included for release mode linkage
 
 const buildvers = "0.8.4";
-const builddate = "2022.11.26";
+const builddate = "2023.01.04";
 const devmode = false;
 
 const traceajax = () => undefined;
diff --git a/gps.go b/gps.go
index bf20d5b3..c83d6edc 100644
--- a/gps.go
+++ b/gps.go
@@ -5,8 +5,6 @@ import (
 	"io/fs"
 	"math"
 	"net/http"
-
-	"golang.org/x/sync/errgroup"
 )
 
 // Haversine uses formula to calculate the great-circle distance between
@@ -194,14 +192,8 @@ func gpsscanAPI(w http.ResponseWriter, r *http.Request) {
 		return
 	}
 
-	var wg errgroup.Group
 	var session = xormStorage.NewSession()
-	defer func() {
-		go func() {
-			wg.Wait()
-			session.Close()
-		}()
-	}()
+	defer session.Close()
 
 	var prf *Profile
 	if prf = prflist.ByID(arg.AID); prf == nil {
@@ -213,6 +205,7 @@ func gpsscanAPI(w http.ResponseWriter, r *http.Request) {
 		return
 	}
 
+	var ests []ExifStore
 	for _, puid := range arg.List {
 		var puid = puid // localize
 		if syspath, ok := PathStorePath(session, puid); ok {
@@ -225,33 +218,50 @@ func gpsscanAPI(w http.ResponseWriter, r *http.Request) {
 					ret.List = append(ret.List, gst)
 				} else {
 					// check memory cache
-					if ok = exifcache.Has(puid); ok {
+					if exifcache.Has(puid) {
 						continue // there are tags without GPS
 					}
-					// try to extract from file
-					var ep ExifProp
-					if err := ep.Extract(syspath); err != nil {
-						continue
-					}
-					if ok = !ep.IsZero(); ok {
-						wg.Go(func() (err error) {
-							return ExifStoreSet(session, &ExifStore{ // update database
-								Puid: puid,
-								Prop: ep,
-							})
-						})
+					// try to get from database
+					var est ExifStore
+					est.Puid = puid
+					if ok, _ = session.Get(&est); ok { // skip errors
+						exifcache.Push(puid, est.Prop) // update cache
+						if est.Prop.IsZero() {
+							continue
+						}
+					} else {
+						// try to extract from file
+						if err := est.Prop.Extract(syspath); err != nil {
+							continue
+						}
+						if est.Prop.IsZero() {
+							continue
+						}
+						// set to memory cache
+						exifcache.Push(puid, est.Prop)
+						// prepare to set to database
+						ests = append(ests, est)
 					}
-					if ep.Latitude != 0 || ep.Longitude != 0 {
+					if est.Prop.Latitude != 0 || est.Prop.Longitude != 0 {
 						var gst Store[GpsInfo]
 						gst.Puid = puid
-						gst.Prop.FromProp(&ep)
+						gst.Prop.FromProp(&est.Prop)
 						ret.List = append(ret.List, gst)
+						// set to GPS cache
+						gpscache.Store(puid, gst.Prop)
 					}
 				}
 			}
 		}
 	}
 
+	if len(ests) > 0 {
+		go SqlSession(func(session *Session) (res any, err error) {
+			_, err = session.Insert(&ests)
+			return
+		})
+	}
+
 	WriteOK(w, r, &ret)
 }
 
diff --git a/handlers.go b/handlers.go
index 74db8c02..3eef59fa 100644
--- a/handlers.go
+++ b/handlers.go
@@ -586,9 +586,9 @@ func propAPI(w http.ResponseWriter, r *http.Request) {
 	var ret struct {
 		XMLName xml.Name `json:"-" yaml:"-" xml:"ret"`
 
-		Path string `json:"path" yaml:"path" xml:"path"`
-		Name string `json:"shrname" yaml:"shrname" xml:"shrname"`
-		Prop any    `json:"prop" yaml:"prop" xml:"prop"`
+		Path string  `json:"path" yaml:"path" xml:"path"`
+		Name string  `json:"shrname" yaml:"shrname" xml:"shrname"`
+		Prop FileKit `json:"prop" yaml:"prop" xml:"prop"`
 	}
 
 	// get arguments
@@ -638,7 +638,8 @@ func propAPI(w http.ResponseWriter, r *http.Request) {
 		WriteError500(w, r, err, AECpropbadstat)
 		return
 	}
-	ret.Prop = MakeProp(session, syspath, fi)
+	ret.Prop.Setup(session, syspath, fi)
+	ret.Prop.Shared = prf.IsShared(syspath)
 
 	WriteOK(w, r, &ret)
 }
@@ -702,6 +703,7 @@ func ispathAPI(w http.ResponseWriter, r *http.Request, auth *Profile) {
 
 	var fk FileKit
 	fk.Setup(session, syspath, fi)
+	fk.Shared = prf.IsShared(syspath)
 	WriteOK(w, r, &fk)
 }
 
@@ -864,6 +866,7 @@ func drvaddAPI(w http.ResponseWriter, r *http.Request, auth *Profile) {
 
 	var fk FileKit
 	fk.PUID = puid
+	fk.Shared = prf.IsShared(syspath)
 	fk.Name = path.Base(syspath)
 	fk.Type = FTdrv
 	fk.Size = fi.Size()
diff --git a/profile.go b/profile.go
index 2ffdf095..ae65a824 100644
--- a/profile.go
+++ b/profile.go
@@ -182,36 +182,35 @@ func (prf *Profile) GetPathGroup(fpath string, fi fs.FileInfo) (grp FG_t) {
 // IsHidden do check up that file path is in hidden list.
 func (prf *Profile) IsHidden(fpath string) bool {
 	var matched bool
-	var kpath = strings.ToLower(ToSlash(fpath))
+	var kpath = strings.ToLower(fpath)
 
 	prf.mux.RLock()
 	defer prf.mux.RUnlock()
 
 	var name = path.Base(kpath)
-patterns:
 	for _, pattern := range prf.Hidden {
 		if strings.HasPrefix(pattern, "**/") {
 			if matched, _ = path.Match(pattern[3:], name); matched {
-				break
+				return true
 			}
 		} else if strings.HasPrefix(pattern, "?:/") {
 			for _, root := range prf.Roots {
 				if root[len(root)-1] != '/' {
 					root += "/"
 				}
-				if strings.HasPrefix(kpath, root) {
+				if strings.HasPrefix(kpath, strings.ToLower(root)) {
 					if matched, _ = path.Match(pattern[3:], kpath[len(root):]); matched {
-						break patterns
+						return true
 					}
 				}
 			}
 		} else {
 			if matched, _ = path.Match(pattern, kpath); matched {
-				break
+				return true
 			}
 		}
 	}
-	return matched
+	return false
 }
 
 // IsRoot checks whether file path is disk root path.
@@ -227,15 +226,11 @@ func (prf *Profile) IsRoot(syspath string) bool {
 }
 
 // IsShared checks that syspath is become in any share.
-func (prf *Profile) IsShared(syspath string) bool {
+func (prf *Profile) IsShared(syspath string) (ok bool) {
 	prf.mux.RLock()
-	defer prf.mux.RUnlock()
-	for _, fpath := range prf.Shares {
-		if fpath == syspath {
-			return true
-		}
-	}
-	return false
+	_, ok = prf.sharepuid[syspath]
+	prf.mux.RUnlock()
+	return
 }
 
 // RootIndex returns index of given path in roots list or -1 if not found.
diff --git a/scandir.go b/scandir.go
index b28151e9..bad0f538 100644
--- a/scandir.go
+++ b/scandir.go
@@ -116,6 +116,7 @@ func ScanFileInfoList(prf *Profile, session *Session, vfiles []fs.FileInfo, vpat
 		if dp, ok := dpmap[puid]; ok || fp.Type != FTfile {
 			var dk DirKit
 			dk.PUID = puid
+			dk.Shared = prf.IsShared(fpath)
 			dk.FileProp = fp
 			dk.DirProp = dp
 			if vfiles[i] == nil && dk.Type != FTctgr {
@@ -125,6 +126,7 @@ func ScanFileInfoList(prf *Profile, session *Session, vfiles []fs.FileInfo, vpat
 		} else {
 			var fk FileKit
 			fk.PUID = puid
+			fk.Shared = prf.IsShared(fpath)
 			fk.FileProp = fp
 			if tp, ok := tilecache.Peek(puid); ok {
 				fk.TileProp = *tp