diff --git a/swad_API.c b/swad_API.c
index b981d3ac..6c2f28a9 100644
--- a/swad_API.c
+++ b/swad_API.c
@@ -753,7 +753,7 @@ int swad__createAccount (struct soap *soap,
    createAccountOut->wsKey[0] = '\0';
 
    /***** Get plugin code *****/
-   if ((ReturnCode = API_GetPlgCodFromAppKey (soap,(const char *) appKey)) != SOAP_OK)
+   if ((ReturnCode = API_GetPlgCodFromAppKey (soap,appKey)) != SOAP_OK)
       return ReturnCode;
 
    /***** Check parameters used to create the new account *****/
@@ -896,8 +896,7 @@ int swad__loginByUserPasswordKey (struct soap *soap,
    loginByUserPasswordKeyOut->userRole          = 0;	// unknown
 
    /***** Get plugin code *****/
-   if ((ReturnCode = API_GetPlgCodFromAppKey (soap,
-					      (const char *) appKey)) != SOAP_OK)
+   if ((ReturnCode = API_GetPlgCodFromAppKey (soap,appKey)) != SOAP_OK)
       return ReturnCode;
 
    /***** Check if user's email, @nickname or ID are valid *****/
@@ -1070,8 +1069,7 @@ int swad__loginBySessionKey (struct soap *soap,
    loginBySessionKeyOut->courseName[0]     = '\0';
 
    /***** Get plugin code *****/
-   if ((ReturnCode = API_GetPlgCodFromAppKey (soap,
-					      (const char *) appKey)) != SOAP_OK)
+   if ((ReturnCode = API_GetPlgCodFromAppKey (soap,appKey)) != SOAP_OK)
       return ReturnCode;
 
    /***** Check length of session identifier *****/
@@ -1254,8 +1252,7 @@ int swad__getNewPassword (struct soap *soap,
    getNewPasswordOut->success = 0;	// error
 
    /***** Get plugin code *****/
-   if ((ReturnCode = API_GetPlgCodFromAppKey (soap,
-					      (const char *) appKey)) != SOAP_OK)
+   if ((ReturnCode = API_GetPlgCodFromAppKey (soap,appKey)) != SOAP_OK)
       return ReturnCode;
 
    /***** Check if user's email, @nickname or ID are valid *****/
@@ -3365,7 +3362,7 @@ int swad__getNotifications (struct soap *soap,
          getNotificationsOut->notificationsArray.__ptr[NumNotif].notifCode = (int) NtfCod;
 
          /* Get notification event type (row[1]) */
-         NotifyEvent = Ntf_GetNotifyEventFromStr ((const char *) row[1]);
+         NotifyEvent = Ntf_GetNotifyEventFromStr (row[1]);
          getNotificationsOut->notificationsArray.__ptr[NumNotif].eventType =
             soap_malloc (soap,Ntf_MAX_BYTES_NOTIFY_EVENT + 1);
          Str_Copy (getNotificationsOut->notificationsArray.__ptr[NumNotif].eventType,
diff --git a/swad_QR.c b/swad_QR.c
index 2020a3bd..4e075019 100644
--- a/swad_QR.c
+++ b/swad_QR.c
@@ -87,7 +87,7 @@ void QR_PutLinkToPrintQRCode (Act_Action_t Action,
 
 void QR_PutParamQRString (void *QRString)
   {
-   Par_PutHiddenParamString (NULL,"QRString",(const char *) QRString);
+   Par_PutHiddenParamString (NULL,"QRString",QRString);
   }
 
 /*****************************************************************************/
diff --git a/swad_changelog.h b/swad_changelog.h
index 970bf115..09f8b6d4 100644
--- a/swad_changelog.h
+++ b/swad_changelog.h
@@ -598,10 +598,11 @@ TODO: DNI de un estudiante sale err
 TODO: BUG: Cuando un tipo de grupo sólo tiene un grupo, inscribirse es voluntario, el estudiante sólo puede pertenecer a un grupo, y se inscribe en él, debería poder desapuntarse. Ahora no puede.
 TODO: Salvador Romero Cortés: @acanas opción para editar posts
 */
-#define Log_PLATFORM_VERSION	"SWAD 20.39.5 (2021-03-02)"
+#define Log_PLATFORM_VERSION	"SWAD 20.39.6 (2021-03-02)"
 #define CSS_FILE		"swad20.33.9.css"
 #define JS_FILE			"swad20.6.2.js"
 /*
+	Version 20.39.6:  Mar 02, 2021  Code refactoring in fav/share timeline notes. (305570 lines)
 	Version 20.39.5:  Mar 02, 2021  Code refactoring in timeline notes and posts. (305620 lines)
 	Version 20.39.4:  Mar 02, 2021  Code refactoring in timeline notes. (305614 lines)
 	Version 20.39.3:  Mar 02, 2021  Code refactoring in timeline favourites. (305601 lines)
diff --git a/swad_notification.c b/swad_notification.c
index 46b0b6fb..f8299e66 100644
--- a/swad_notification.c
+++ b/swad_notification.c
@@ -405,7 +405,7 @@ void Ntf_ShowMyNotifications (void)
          row = mysql_fetch_row (mysql_res);
 
          /* Get event type (row[0]) */
-         NotifyEvent = Ntf_GetNotifyEventFromStr ((const char *) row[0]);
+         NotifyEvent = Ntf_GetNotifyEventFromStr (row[0]);
 
          /* Get (from) user code (row[1]) */
          UsrDat.UsrCod = Str_ConvertStrCodToLongCod (row[1]);
@@ -1653,7 +1653,7 @@ static void Ntf_SendPendingNotifByEMailToOneUsr (struct UsrData *ToUsrDat,unsign
 	    row = mysql_fetch_row (mysql_res);
 
 	    /* Get event type (row[0]) */
-	    NotifyEvent = Ntf_GetNotifyEventFromStr ((const char *) row[0]);
+	    NotifyEvent = Ntf_GetNotifyEventFromStr (row[0]);
 
 	    /* Get origin user code (row[1]) */
 	    FromUsrDat.UsrCod = Str_ConvertStrCodToLongCod (row[1]);
diff --git a/swad_timeline.c b/swad_timeline.c
index 1237d8f4..03cec306 100644
--- a/swad_timeline.c
+++ b/swad_timeline.c
@@ -443,7 +443,7 @@ static void TL_ShowTimeline (struct TL_Timeline *Timeline,
       if (GlobalTimeline)
 	{
 	 /* Link to view new publications via AJAX */
-	 TL_Pub_PutLinkToViewNewPublications ();
+	 TL_Pub_PutLinkToViewNewPubs ();
 
 	 /* Hidden list where insert
 	    just received (not visible) publications via AJAX */
@@ -486,7 +486,7 @@ static void TL_ShowTimeline (struct TL_Timeline *Timeline,
       if (NumPubs == TL_Pub_MAX_REC_PUBS_TO_GET_AND_SHOW)
 	{
 	 /* Link to view old publications via AJAX */
-	 TL_Pub_PutLinkToViewOldPublications ();
+	 TL_Pub_PutLinkToViewOldPubs ();
 
 	 /* Hidden list where insert old publications via AJAX */
 	 HTM_UL_Begin ("id=\"old_timeline_list\" class=\"TL_LIST\"");
diff --git a/swad_timeline_favourite.c b/swad_timeline_favourite.c
index a3979605..491fddef 100644
--- a/swad_timeline_favourite.c
+++ b/swad_timeline_favourite.c
@@ -143,37 +143,14 @@ void TL_Fav_UnfNoteGbl (void)
 
 static void TL_Fav_FavNote (struct TL_Not_Note *Not)
   {
-   extern const char *Txt_The_original_post_no_longer_exists;
    long OriginalPubCod;
 
-   /***** Get data of note *****/
-   Not->NotCod = TL_Not_GetParamNotCod ();
-   TL_Not_GetDataOfNoteByCod (Not);
-
-   /***** Trivial check 1: note code should be > 0 *****/
-   if (Not->NotCod <= 0)
-     {
-      Ale_ShowAlert (Ale_WARNING,Txt_The_original_post_no_longer_exists);
+   /***** Get data of note and do some checks *****/
+   if (!TL_Not_CheckICanFavShaNote (Not))
       return;
-     }
 
-   /***** Trivial check 2: I must be logged *****/
-   if (!Gbl.Usrs.Me.Logged)
-     {
-      Ale_ShowAlert (Ale_ERROR,"You are not logged.");
-      return;
-     }
-
-   /***** Trivial check 3: The author can not fav his/her own notes *****/
-   if (Usr_ItsMe (Not->UsrCod))
-     {
-      Ale_ShowAlert (Ale_ERROR,"You can not fav/unfav your own posts.");
-      return;
-     }
-
-   /***** Trivial check 4: Have I faved this note? *****/
-   if (TL_DB_CheckIfFavedByUsr (TL_Fav_NOTE,Not->NotCod,
-				Gbl.Usrs.Me.UsrDat.UsrCod))
+   /***** Trivial check: Have I faved this note? *****/
+   if (TL_DB_CheckIfFavedByUsr (TL_Fav_NOTE,Not->NotCod,Gbl.Usrs.Me.UsrDat.UsrCod))
       // Don't show error message
       return;
 
@@ -194,37 +171,14 @@ static void TL_Fav_FavNote (struct TL_Not_Note *Not)
 
 static void TL_Fav_UnfNote (struct TL_Not_Note *Not)
   {
-   extern const char *Txt_The_original_post_no_longer_exists;
    long OriginalPubCod;
 
-   /***** Get data of note *****/
-   Not->NotCod = TL_Not_GetParamNotCod ();
-   TL_Not_GetDataOfNoteByCod (Not);
-
-   /***** Trivial check 1: note code should be > 0 *****/
-   if (Not->NotCod <= 0)
-     {
-      Ale_ShowAlert (Ale_WARNING,Txt_The_original_post_no_longer_exists);
+   /***** Get data of note and do some checks *****/
+   if (!TL_Not_CheckICanFavShaNote (Not))
       return;
-     }
 
-   /***** Trivial check 2: I must be logged *****/
-   if (!Gbl.Usrs.Me.Logged)
-     {
-      Ale_ShowAlert (Ale_ERROR,"You are not logged.");
-      return;
-     }
-
-   /***** Trivial check 3: The author can not unfav his/her own notes *****/
-   if (Usr_ItsMe (Not->UsrCod))
-     {
-      Ale_ShowAlert (Ale_ERROR,"You can not fav/unfav your own posts.");
-      return;
-     }
-
-   /***** Trivial check 4: Have I faved this note? *****/
-   if (!TL_DB_CheckIfFavedByUsr (TL_Fav_NOTE,Not->NotCod,
-				 Gbl.Usrs.Me.UsrDat.UsrCod))
+   /***** Trivial check: Have I faved this note? *****/
+   if (!TL_DB_CheckIfFavedByUsr (TL_Fav_NOTE,Not->NotCod,Gbl.Usrs.Me.UsrDat.UsrCod))
       // Don't show error message
       return;
 
diff --git a/swad_timeline_note.c b/swad_timeline_note.c
index e60ba951..0cae1d83 100644
--- a/swad_timeline_note.c
+++ b/swad_timeline_note.c
@@ -1337,7 +1337,7 @@ static void TL_Not_GetDataOfNoteFromRow (MYSQL_ROW row,struct TL_Not_Note *Not)
    Not->NotCod      = Str_ConvertStrCodToLongCod (row[0]);
 
    /***** Get note type (row[1]) *****/
-   Not->NoteType    = TL_Not_GetNoteTypeFromStr ((const char *) row[1]);
+   Not->NoteType    = TL_Not_GetNoteTypeFromStr (row[1]);
 
    /***** Get file/post... code (row[2]) *****/
    Not->Cod         = Str_ConvertStrCodToLongCod (row[2]);
@@ -1424,3 +1424,39 @@ void TL_Not_GetDataOfNoteByCod (struct TL_Not_Note *Not)
    /***** Free structure that stores the query result *****/
    DB_FreeMySQLResult (&mysql_res);
   }
+
+/*****************************************************************************/
+/******************** Check if I can fav/share a note ************************/
+/*****************************************************************************/
+
+bool TL_Not_CheckICanFavShaNote (struct TL_Not_Note *Not)
+  {
+   extern const char *Txt_The_original_post_no_longer_exists;
+
+   /***** Get data of note *****/
+   Not->NotCod = TL_Not_GetParamNotCod ();
+   TL_Not_GetDataOfNoteByCod (Not);
+
+   /***** Trivial check 1: note code should be > 0 *****/
+   if (Not->NotCod <= 0)
+     {
+      Ale_ShowAlert (Ale_WARNING,Txt_The_original_post_no_longer_exists);
+      return false;
+     }
+
+   /***** Trivial check 2: I must be logged *****/
+   if (!Gbl.Usrs.Me.Logged)
+     {
+      Ale_ShowAlert (Ale_ERROR,"You are not logged.");
+      return false;
+     }
+
+   /***** Trivial check 3: The author can not unfav his/her own notes *****/
+   if (Usr_ItsMe (Not->UsrCod))
+     {
+      Ale_ShowAlert (Ale_ERROR,"You can not fav/share your own posts.");
+      return false;
+     }
+
+   return true;
+  }
diff --git a/swad_timeline_note.h b/swad_timeline_note.h
index 2a6ee453..d1232310 100644
--- a/swad_timeline_note.h
+++ b/swad_timeline_note.h
@@ -113,4 +113,6 @@ void TL_Not_RemoveNoteGbl (void);
 
 void TL_Not_GetDataOfNoteByCod (struct TL_Not_Note *Not);
 
+bool TL_Not_CheckICanFavShaNote (struct TL_Not_Note *Not);
+
 #endif
diff --git a/swad_timeline_notification.c b/swad_timeline_notification.c
index 56dbd9ed..1dee9391 100644
--- a/swad_timeline_notification.c
+++ b/swad_timeline_notification.c
@@ -121,7 +121,7 @@ void TL_Ntf_GetNotifPublication (char SummaryStr[Ntf_MAX_BYTES_SUMMARY + 1],
    /***** Get summary and content from post from database *****/
    if (TL_DB_GetDataOfPubByCod (PubCod,&mysql_res) == 1)   // Result should have a unique row
       /* Get data of publication from row */
-      TL_Pub_GetDataOfPublicationFromNextRow (mysql_res,&Pub);
+      TL_Pub_GetDataOfPubFromNextRow (mysql_res,&Pub);
 
    /***** Free structure that stores the query result *****/
    DB_FreeMySQLResult (&mysql_res);
diff --git a/swad_timeline_publication.c b/swad_timeline_publication.c
index 63bbe597..cbbca7f1 100644
--- a/swad_timeline_publication.c
+++ b/swad_timeline_publication.c
@@ -313,7 +313,7 @@ static struct TL_Pub_Publication *TL_Pub_SelectTheMostRecentPub (const struct TL
          Lay_NotEnoughMemoryExit ();
 
       /* Get data of publication */
-      TL_Pub_GetDataOfPublicationFromNextRow (mysql_res,Pub);
+      TL_Pub_GetDataOfPubFromNextRow (mysql_res,Pub);
       Pub->Next = NULL;
      }
    else
@@ -402,7 +402,7 @@ TL_TopMessage_t TL_Pub_GetTopMessage (TL_Pub_PubType_t PubType)
 /***************** Put link to view new publications in timeline *************/
 /*****************************************************************************/
 
-void TL_Pub_PutLinkToViewNewPublications (void)
+void TL_Pub_PutLinkToViewNewPubs (void)
   {
    extern const char *The_ClassFormInBoxBold[The_NUM_THEMES];
    extern const char *Txt_See_new_activity;
@@ -437,7 +437,7 @@ void TL_Pub_PutLinkToViewNewPublications (void)
 /***************** Put link to view old publications in timeline *************/
 /*****************************************************************************/
 
-void TL_Pub_PutLinkToViewOldPublications (void)
+void TL_Pub_PutLinkToViewOldPubs (void)
   {
    extern const char *The_ClassFormInBoxBold[The_NUM_THEMES];
    extern const char *Txt_See_more;
@@ -494,8 +494,8 @@ long TL_Pub_GetParamPubCod (void)
 /***************** Get data of publication using its code ********************/
 /*****************************************************************************/
 
-void TL_Pub_GetDataOfPublicationFromNextRow (MYSQL_RES *mysql_res,
-                                             struct TL_Pub_Publication *Pub)
+void TL_Pub_GetDataOfPubFromNextRow (MYSQL_RES *mysql_res,
+                                     struct TL_Pub_Publication *Pub)
   {
    MYSQL_ROW row;
 
@@ -518,7 +518,7 @@ void TL_Pub_GetDataOfPublicationFromNextRow (MYSQL_RES *mysql_res,
    Pub->PublisherCod = Str_ConvertStrCodToLongCod (row[2]);
 
    /***** Get type of publication (row[3]) *****/
-   Pub->PubType      = TL_Pub_GetPubTypeFromStr ((const char *) row[3]);
+   Pub->PubType      = TL_Pub_GetPubTypeFromStr (row[3]);
   }
 
 /*****************************************************************************/
diff --git a/swad_timeline_publication.h b/swad_timeline_publication.h
index c4d27acc..08ebc987 100644
--- a/swad_timeline_publication.h
+++ b/swad_timeline_publication.h
@@ -93,14 +93,14 @@ void TL_Pub_ShowOldPubsInTimeline (struct TL_Timeline *Timeline);
 
 TL_TopMessage_t TL_Pub_GetTopMessage (TL_Pub_PubType_t PubType);
 
-void TL_Pub_PutLinkToViewNewPublications (void);
-void TL_Pub_PutLinkToViewOldPublications (void);
+void TL_Pub_PutLinkToViewNewPubs (void);
+void TL_Pub_PutLinkToViewOldPubs (void);
 
 void TL_Pub_PutHiddenParamPubCod (long PubCod);
 long TL_Pub_GetParamPubCod (void);
 
-void TL_Pub_GetDataOfPublicationFromNextRow (MYSQL_RES *mysql_res,
-                                             struct TL_Pub_Publication *Pub);
+void TL_Pub_GetDataOfPubFromNextRow (MYSQL_RES *mysql_res,
+                                     struct TL_Pub_Publication *Pub);
 
 void TL_Pub_PublishPubInTimeline (struct TL_Pub_Publication *Pub);
 
diff --git a/swad_timeline_share.c b/swad_timeline_share.c
index f4cbd905..858aeabc 100644
--- a/swad_timeline_share.c
+++ b/swad_timeline_share.c
@@ -115,36 +115,14 @@ void TL_Sha_ShaNoteGbl (void)
 
 static void TL_Sha_ShaNote (struct TL_Not_Note *Not)
   {
-   extern const char *Txt_The_original_post_no_longer_exists;
    struct TL_Pub_Publication Pub;
    long OriginalPubCod;
 
-   /***** Get data of note *****/
-   Not->NotCod = TL_Not_GetParamNotCod ();
-   TL_Not_GetDataOfNoteByCod (Not);
-
-   /***** Trivial check 1: note code should be > 0 *****/
-   if (Not->NotCod <= 0)
-     {
-      Ale_ShowAlert (Ale_WARNING,Txt_The_original_post_no_longer_exists);
+   /***** Get data of note and do some checks *****/
+   if (!TL_Not_CheckICanFavShaNote (Not))
       return;
-     }
 
-   /***** Trivial check 2: Am I logged? *****/
-   if (!Gbl.Usrs.Me.Logged)
-     {
-      Ale_ShowAlert (Ale_ERROR,"You are not logged.");
-      return;
-     }
-
-   /***** Trivial check 3: Am I the author? *****/
-   if (Usr_ItsMe (Not->UsrCod))
-     {
-      Ale_ShowAlert (Ale_ERROR,"You can not share/unshare your own posts.");
-      return;
-     }
-
-   /***** Trivial check 4: Is note already shared by me? *****/
+   /***** Trivial check: Is note already shared by me? *****/
    if (TL_DB_CheckIfNoteIsSharedByUsr (Not->NotCod,Gbl.Usrs.Me.UsrDat.UsrCod))
       // Don't show error message
       return;
@@ -192,35 +170,13 @@ void TL_Sha_UnsNoteGbl (void)
 
 static void TL_Sha_UnsNote (struct TL_Not_Note *Not)
   {
-   extern const char *Txt_The_original_post_no_longer_exists;
    long OriginalPubCod;
 
-   /***** Get data of note *****/
-   Not->NotCod = TL_Not_GetParamNotCod ();
-   TL_Not_GetDataOfNoteByCod (Not);
-
-   /***** Trivial check 1: note code should be > 0 *****/
-   if (Not->NotCod <= 0)
-     {
-      Ale_ShowAlert (Ale_WARNING,Txt_The_original_post_no_longer_exists);
+   /***** Get data of note and do some checks *****/
+   if (!TL_Not_CheckICanFavShaNote (Not))
       return;
-     }
 
-   /***** Trivial check 2: Am I logged? *****/
-   if (!Gbl.Usrs.Me.Logged)
-     {
-      Ale_ShowAlert (Ale_ERROR,"You are not logged.");
-      return;
-     }
-
-   /***** Trivial check 3: Am I the author? *****/
-   if (Usr_ItsMe (Not->UsrCod))
-     {
-      Ale_ShowAlert (Ale_ERROR,"You can not share/unshare your own posts.");
-      return;
-     }
-
-   /***** Trivial check 4: Is note already shared by me? *****/
+   /***** Trivial check: Is note already shared by me? *****/
    if (!TL_DB_CheckIfNoteIsSharedByUsr (Not->NotCod,Gbl.Usrs.Me.UsrDat.UsrCod))
       // Don't show error message
       return;