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https://github.com/acanas/swad-core.git
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606 lines
22 KiB
C
606 lines
22 KiB
C
// swad_role.c: user's roles
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/*
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SWAD (Shared Workspace At a Distance),
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is a web platform developed at the University of Granada (Spain),
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and used to support university teaching.
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This file is part of SWAD core.
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Copyright (C) 1999-2018 Antonio Cañas Vargas
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU Affero General 3 License as
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published by the Free Software Foundation, either version 3 of the
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License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Affero General Public License for more details.
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You should have received a copy of the GNU Affero General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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/*****************************************************************************/
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/*********************************** Headers *********************************/
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/*****************************************************************************/
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#include "swad_database.h"
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#include "swad_global.h"
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#include "swad_parameter.h"
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#include "swad_role.h"
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#include "swad_role_type.h"
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/*****************************************************************************/
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/****************************** Public constants *****************************/
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/*****************************************************************************/
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/*****************************************************************************/
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/***************************** Private constants *****************************/
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/*****************************************************************************/
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/*****************************************************************************/
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/****************************** Internal types *******************************/
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/*****************************************************************************/
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/*****************************************************************************/
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/************** External global variables from others modules ****************/
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/*****************************************************************************/
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extern struct Globals Gbl;
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/*****************************************************************************/
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/************************* Internal global variables *************************/
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/*****************************************************************************/
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/*****************************************************************************/
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/***************************** Private prototypes ****************************/
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/*****************************************************************************/
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/*****************************************************************************/
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/******************************* Set my roles ********************************/
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/*****************************************************************************/
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void Rol_SetMyRoles (void)
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{
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bool ICanBeInsAdm = false;
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bool ICanBeCtrAdm = false;
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bool ICanBeDegAdm = false;
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/***** Get my role in current course if not yet filled *****/
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if (!Gbl.Usrs.Me.UsrDat.Roles.InCurrentCrs.Valid)
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{
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Gbl.Usrs.Me.UsrDat.Roles.InCurrentCrs.Role = Rol_GetMyRoleInCrs (Gbl.CurrentCrs.Crs.CrsCod);
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Gbl.Usrs.Me.UsrDat.Roles.InCurrentCrs.Valid = true;
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}
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/***** Set the user's role I am logged *****/
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Rol_GetRolesInAllCrssIfNotYetGot (&Gbl.Usrs.Me.UsrDat); // Get my roles if not yet got
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Gbl.Usrs.Me.Role.Max = Rol_GetMaxRoleInCrss ((unsigned) Gbl.Usrs.Me.UsrDat.Roles.InCrss);
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Gbl.Usrs.Me.Role.Logged = (Gbl.Usrs.Me.Role.FromSession == Rol_UNK) ? // If no logged role retrieved from session...
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((Gbl.Usrs.Me.UsrDat.Roles.InCurrentCrs.Role == Rol_UNK) ? Rol_USR :
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Gbl.Usrs.Me.UsrDat.Roles.InCurrentCrs.Role) :
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Gbl.Usrs.Me.Role.FromSession; // Get logged role from session
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/***** Check if I am administrator of current institution/centre/degree *****/
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if (Gbl.CurrentIns.Ins.InsCod > 0)
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{
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/* Check if I am and administrator of current institution */
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ICanBeInsAdm = Usr_CheckIfUsrIsAdm (Gbl.Usrs.Me.UsrDat.UsrCod,
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Sco_SCOPE_INS,
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Gbl.CurrentIns.Ins.InsCod);
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if (Gbl.CurrentCtr.Ctr.CtrCod > 0)
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{
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/* Check if I am and administrator of current centre */
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ICanBeCtrAdm = Usr_CheckIfUsrIsAdm (Gbl.Usrs.Me.UsrDat.UsrCod,
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Sco_SCOPE_CTR,
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Gbl.CurrentCtr.Ctr.CtrCod);
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if (Gbl.CurrentDeg.Deg.DegCod > 0)
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/* Check if I am and administrator of current degree */
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ICanBeDegAdm = Usr_CheckIfUsrIsAdm (Gbl.Usrs.Me.UsrDat.UsrCod,
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Sco_SCOPE_DEG,
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Gbl.CurrentDeg.Deg.DegCod);
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}
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}
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/***** Check if I belong to current course *****/
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if (Gbl.CurrentCrs.Crs.CrsCod > 0) // Course selected
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{
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Gbl.Usrs.Me.IBelongToCurrentCrs = Usr_CheckIfUsrBelongsToCurrentCrs (&Gbl.Usrs.Me.UsrDat);
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if (Gbl.Usrs.Me.IBelongToCurrentCrs)
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Gbl.Usrs.Me.UsrDat.Accepted = Usr_CheckIfUsrHasAcceptedInCurrentCrs (&Gbl.Usrs.Me.UsrDat);
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else
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Gbl.Usrs.Me.UsrDat.Accepted = false;
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}
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else // No course selected
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{
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Gbl.Usrs.Me.IBelongToCurrentCrs = false;
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Gbl.Usrs.Me.UsrDat.Accepted = false;
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}
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/***** Check if I belong to current degree *****/
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if (Gbl.CurrentDeg.Deg.DegCod > 0)
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{
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if (Gbl.Usrs.Me.IBelongToCurrentCrs)
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Gbl.Usrs.Me.IBelongToCurrentDeg = true;
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else
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Gbl.Usrs.Me.IBelongToCurrentDeg = Usr_CheckIfIBelongToDeg (Gbl.CurrentDeg.Deg.DegCod);
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}
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else
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Gbl.Usrs.Me.IBelongToCurrentDeg = false;
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/***** Check if I belong to current centre *****/
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if (Gbl.CurrentCtr.Ctr.CtrCod > 0)
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{
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if (Gbl.Usrs.Me.IBelongToCurrentDeg)
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Gbl.Usrs.Me.IBelongToCurrentCtr = true;
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else
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Gbl.Usrs.Me.IBelongToCurrentCtr = Usr_CheckIfIBelongToCtr (Gbl.CurrentCtr.Ctr.CtrCod);
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}
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else
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Gbl.Usrs.Me.IBelongToCurrentCtr = false;
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/***** Check if I belong to current institution *****/
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if (Gbl.CurrentIns.Ins.InsCod > 0)
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{
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if (Gbl.Usrs.Me.IBelongToCurrentCtr)
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Gbl.Usrs.Me.IBelongToCurrentIns = true;
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else
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Gbl.Usrs.Me.IBelongToCurrentIns = Usr_CheckIfIBelongToIns (Gbl.CurrentIns.Ins.InsCod);
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}
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else
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Gbl.Usrs.Me.IBelongToCurrentIns = false;
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/***** Build my list of available roles for current course *****/
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if (Gbl.CurrentCrs.Crs.CrsCod > 0)
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{
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if (Gbl.Usrs.Me.IBelongToCurrentCrs)
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Gbl.Usrs.Me.Role.Available = (1 << Gbl.Usrs.Me.UsrDat.Roles.InCurrentCrs.Role);
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else if (Gbl.Usrs.Me.Role.Max >= Rol_STD)
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Gbl.Usrs.Me.Role.Available = (1 << Rol_USR);
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else
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Gbl.Usrs.Me.Role.Available = (1 << Rol_GST);
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}
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else if (Gbl.Usrs.Me.Role.Max >= Rol_STD)
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Gbl.Usrs.Me.Role.Available = (1 << Rol_USR);
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else
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Gbl.Usrs.Me.Role.Available = (1 << Rol_GST);
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if (ICanBeInsAdm)
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Gbl.Usrs.Me.Role.Available |= (1 << Rol_INS_ADM);
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if (ICanBeCtrAdm)
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Gbl.Usrs.Me.Role.Available |= (1 << Rol_CTR_ADM);
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if (ICanBeDegAdm)
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Gbl.Usrs.Me.Role.Available |= (1 << Rol_DEG_ADM);
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if (Usr_CheckIfUsrIsSuperuser (Gbl.Usrs.Me.UsrDat.UsrCod))
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Gbl.Usrs.Me.Role.Available |= (1 << Rol_SYS_ADM);
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/***** Check if the role I am logged is now available for me *****/
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if (!(Gbl.Usrs.Me.Role.Available & (1 << Gbl.Usrs.Me.Role.Logged))) // Current type I am logged is not available for me
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/* Set the lowest role available for me */
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for (Gbl.Usrs.Me.Role.Logged = Rol_UNK;
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Gbl.Usrs.Me.Role.Logged <= (Rol_Role_t) (Rol_NUM_ROLES - 1);
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Gbl.Usrs.Me.Role.Logged++)
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if (Gbl.Usrs.Me.Role.Available & (1 << Gbl.Usrs.Me.Role.Logged))
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break;
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}
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/*****************************************************************************/
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/****************** Get number of available roles for me *********************/
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/*****************************************************************************/
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unsigned Rol_GetNumAvailableRoles (void)
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{
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Rol_Role_t Role;
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unsigned NumAvailableRoles = 0;
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for (Role = Rol_GST;
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Role < Rol_NUM_ROLES;
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Role++)
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if (Gbl.Usrs.Me.Role.Available & (1 << Role))
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NumAvailableRoles++;
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return NumAvailableRoles;
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}
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/*****************************************************************************/
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/************ Get maximum role of a user in all his/her courses **************/
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/*****************************************************************************/
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Rol_Role_t Rol_GetMaxRoleInCrss (unsigned Roles)
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{
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/***** User's role in one of her/his course can be ROL_STD or ROL_TCH *****/
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/* Check first if user is a teacher in any course */
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if (Roles & (1 << Rol_TCH))
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return Rol_TCH;
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/* Not a teacher. Check then if user is a non-editing teacher in any course */
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if (Roles & (1 << Rol_NET))
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return Rol_NET;
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/* Not a non-editing teacher or a teacher. Check then if user is a student in any course */
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if (Roles & (1 << Rol_STD))
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return Rol_STD;
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/* Not a teacher or student */
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return Rol_GST; // Guest means that this user is not registered in any course
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}
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/*****************************************************************************/
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/******************* Get my maximum role in a institution ********************/
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/*****************************************************************************/
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Rol_Role_t Rol_GetMyMaxRoleInIns (long InsCod)
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{
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unsigned NumMyIns;
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if (InsCod > 0)
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{
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/***** Fill the list with the institutions I belong to (if not already filled) *****/
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Usr_GetMyInstits ();
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/***** Check if the institution passed as parameter is any of my institutions *****/
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for (NumMyIns = 0;
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NumMyIns < Gbl.Usrs.Me.MyInss.Num;
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NumMyIns++)
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if (Gbl.Usrs.Me.MyInss.Inss[NumMyIns].InsCod == InsCod)
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return Gbl.Usrs.Me.MyInss.Inss[NumMyIns].MaxRole;
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return Rol_GST;
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}
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return Rol_UNK; // No degree
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}
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/*****************************************************************************/
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/********************** Get my maximum role in a centre **********************/
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/*****************************************************************************/
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Rol_Role_t Rol_GetMyMaxRoleInCtr (long CtrCod)
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{
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unsigned NumMyCtr;
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if (CtrCod > 0)
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{
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/***** Fill the list with the centres I belong to (if not already filled) *****/
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Usr_GetMyCentres ();
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/***** Check if the centre passed as parameter is any of my centres *****/
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for (NumMyCtr = 0;
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NumMyCtr < Gbl.Usrs.Me.MyCtrs.Num;
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NumMyCtr++)
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if (Gbl.Usrs.Me.MyCtrs.Ctrs[NumMyCtr].CtrCod == CtrCod)
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return Gbl.Usrs.Me.MyCtrs.Ctrs[NumMyCtr].MaxRole;
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return Rol_GST;
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}
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return Rol_UNK; // No centre
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}
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/*****************************************************************************/
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/********************** Get my maximum role in a degree **********************/
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/*****************************************************************************/
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Rol_Role_t Rol_GetMyMaxRoleInDeg (long DegCod)
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{
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unsigned NumMyDeg;
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if (DegCod > 0)
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{
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/***** Fill the list with the degrees I belong to (if not already filled) *****/
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Usr_GetMyDegrees ();
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/***** Check if the degree passed as parameter is any of my degrees *****/
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for (NumMyDeg = 0;
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NumMyDeg < Gbl.Usrs.Me.MyDegs.Num;
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NumMyDeg++)
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if (Gbl.Usrs.Me.MyDegs.Degs[NumMyDeg].DegCod == DegCod)
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return Gbl.Usrs.Me.MyDegs.Degs[NumMyDeg].MaxRole;
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return Rol_GST;
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}
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return Rol_UNK; // No degree
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}
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/*****************************************************************************/
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/*************************** Get my role in a course *************************/
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/*****************************************************************************/
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Rol_Role_t Rol_GetMyRoleInCrs (long CrsCod)
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{
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unsigned NumMyCrs;
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if (CrsCod > 0)
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{
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/***** Fill the list with the courses I belong to (if not already filled) *****/
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Usr_GetMyCourses ();
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/***** Check if the course is any of my courses *****/
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for (NumMyCrs = 0;
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NumMyCrs < Gbl.Usrs.Me.MyCrss.Num;
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NumMyCrs++)
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if (Gbl.Usrs.Me.MyCrss.Crss[NumMyCrs].CrsCod == CrsCod)
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return Gbl.Usrs.Me.MyCrss.Crss[NumMyCrs].Role;
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}
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return Rol_UNK;
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}
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/*****************************************************************************/
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/********************** Get role of a user in a course ***********************/
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/*****************************************************************************/
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void Rol_FlushCacheRoleUsrInCrs (void)
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{
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Gbl.Cache.RoleUsrInCrs.UsrCod = -1L;
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Gbl.Cache.RoleUsrInCrs.CrsCod = -1L;
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Gbl.Cache.RoleUsrInCrs.Role = Rol_UNK;
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}
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Rol_Role_t Rol_GetRoleUsrInCrs (long UsrCod,long CrsCod)
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{
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char Query[256];
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MYSQL_RES *mysql_res;
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MYSQL_ROW row;
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/***** 1. Fast check: trivial cases *****/
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if (UsrCod <= 0 ||
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CrsCod <= 0)
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return Rol_UNK;
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/***** 2. Fast check: Is role in course already calculated *****/
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if (UsrCod == Gbl.Cache.RoleUsrInCrs.UsrCod &&
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CrsCod == Gbl.Cache.RoleUsrInCrs.CrsCod )
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return Gbl.Cache.RoleUsrInCrs.Role;
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/***** 3. Slow check: Get rol of a user in a course from database.
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The result of the query will have one row or none *****/
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Gbl.Cache.RoleUsrInCrs.UsrCod = UsrCod;
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Gbl.Cache.RoleUsrInCrs.CrsCod = CrsCod;
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Gbl.Cache.RoleUsrInCrs.Role = Rol_UNK;
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sprintf (Query,"SELECT Role FROM crs_usr"
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" WHERE CrsCod=%ld AND UsrCod=%ld",
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CrsCod,UsrCod);
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if (DB_QuerySELECT (Query,&mysql_res,"can not get the role of a user in a course") == 1) // User belongs to the course
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{
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row = mysql_fetch_row (mysql_res);
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Gbl.Cache.RoleUsrInCrs.Role = Rol_ConvertUnsignedStrToRole (row[0]);
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}
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DB_FreeMySQLResult (&mysql_res);
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return Gbl.Cache.RoleUsrInCrs.Role;
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}
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/*****************************************************************************/
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/**************** Get roles of a user in all his/her courses *****************/
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/*****************************************************************************/
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// Roles >=0 ==> already filled/calculated ==> nothing to do
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// Roles <0 ==> not yet filled/calculated ==> get roles
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void Rol_GetRolesInAllCrssIfNotYetGot (struct UsrData *UsrDat)
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{
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char Query[128];
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MYSQL_RES *mysql_res;
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MYSQL_ROW row;
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unsigned NumRole;
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unsigned NumRoles;
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/***** If roles is already filled ==> nothing to do *****/
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if (UsrDat->Roles.InCrss < 0) // Not yet filled
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{
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/***** Get distinct roles in all courses of the user from database *****/
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sprintf (Query,"SELECT DISTINCT(Role) FROM crs_usr WHERE UsrCod=%ld",
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UsrDat->UsrCod);
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NumRoles = (unsigned) DB_QuerySELECT (Query,&mysql_res,
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"can not get the roles of a user"
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" in all his/her courses");
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for (NumRole = 0, UsrDat->Roles.InCrss = 0;
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NumRole < NumRoles;
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NumRole++)
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{
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row = mysql_fetch_row (mysql_res);
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UsrDat->Roles.InCrss |= (int) (1 << Rol_ConvertUnsignedStrToRole (row[0]));
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}
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/***** Free structure that stores the query result *****/
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DB_FreeMySQLResult (&mysql_res);
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}
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}
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/*****************************************************************************/
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/********************** Get role from unsigned string ************************/
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/*****************************************************************************/
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Rol_Role_t Rol_ConvertUnsignedStrToRole (const char *UnsignedStr)
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{
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unsigned UnsignedNum;
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if (sscanf (UnsignedStr,"%u",&UnsignedNum) == 1)
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if (UnsignedNum < Rol_NUM_ROLES)
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return (Rol_Role_t) UnsignedNum;
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return Rol_UNK;
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}
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/*****************************************************************************/
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/****** Get roles (several bits can be activated) from unsigned string *******/
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/*****************************************************************************/
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unsigned Rol_ConvertUnsignedStrToRoles (const char *UnsignedStr)
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{
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unsigned UnsignedNum;
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if (sscanf (UnsignedStr,"%u",&UnsignedNum) == 1)
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return UnsignedNum;
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return 0;
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}
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/*****************************************************************************/
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/*********************** Put a form to change my role ************************/
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/*****************************************************************************/
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void Rol_PutFormToChangeMyRole (void)
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{
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extern const char *Txt_ROLES_SINGUL_Abc[Rol_NUM_ROLES][Usr_NUM_SEXS];
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Rol_Role_t Role;
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Act_FormStart (ActChgMyRol);
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fprintf (Gbl.F.Out,"<select name=\"MyRole\" class=\"SEL_ROLE\""
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" onchange=\"document.getElementById('%s').submit();\">",
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Gbl.Form.Id);
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for (Role = Rol_GST;
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Role < Rol_NUM_ROLES;
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Role++)
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if (Gbl.Usrs.Me.Role.Available & (1 << Role))
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{
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fprintf (Gbl.F.Out,"<option value=\"%u\"",(unsigned) Role);
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if (Role == Gbl.Usrs.Me.Role.Logged)
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fprintf (Gbl.F.Out," selected=\"selected\"");
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fprintf (Gbl.F.Out,">%s</option>",
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Txt_ROLES_SINGUL_Abc[Role][Gbl.Usrs.Me.UsrDat.Sex]);
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}
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fprintf (Gbl.F.Out,"</select>");
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Act_FormEnd ();
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}
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/*****************************************************************************/
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/****************************** Change my role *******************************/
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/*****************************************************************************/
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void Rol_ChangeMyRole (void)
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{
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Rol_Role_t NewRole;
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/***** Get parameter with the new logged role ******/
|
|
NewRole = (Rol_Role_t)
|
|
Par_GetParToUnsignedLong ("MyRole",
|
|
0,
|
|
Rol_NUM_ROLES - 1,
|
|
(unsigned long) Rol_UNK);
|
|
if (NewRole != Rol_UNK)
|
|
{
|
|
/* Check if new role is allowed for me */
|
|
if (!(Gbl.Usrs.Me.Role.Available & (1 << NewRole)))
|
|
return;
|
|
|
|
/* New role is correct and is allowed for me */
|
|
if (NewRole != Gbl.Usrs.Me.Role.Logged)
|
|
{
|
|
/* New role is distinct to current role,
|
|
so change my role... */
|
|
Gbl.Usrs.Me.Role.Logged = NewRole;
|
|
Gbl.Usrs.Me.Role.HasChanged = true;
|
|
|
|
/* ...update logged role in session... */
|
|
Ses_UpdateSessionDataInDB ();
|
|
|
|
/* ...and update logged role in list of connected */
|
|
Con_UpdateMeInConnectedList ();
|
|
}
|
|
}
|
|
}
|
|
|
|
/*****************************************************************************/
|
|
/********************* Write selector of users' roles ************************/
|
|
/*****************************************************************************/
|
|
|
|
void Rol_WriteSelectorRoles (unsigned RolesAllowed,unsigned RolesSelected,
|
|
bool Disabled,bool SendOnChange)
|
|
{
|
|
extern const char *Txt_ROLES_PLURAL_abc[Rol_NUM_ROLES][Usr_NUM_SEXS];
|
|
Rol_Role_t Role;
|
|
|
|
for (Role = Rol_UNK;
|
|
Role <= Rol_SYS_ADM;
|
|
Role++)
|
|
if ((RolesAllowed & (1 << Role)))
|
|
{
|
|
fprintf (Gbl.F.Out,"<label>"
|
|
"<input type=\"checkbox\" name=\"Role\" value=\"%u\"",
|
|
(unsigned) Role);
|
|
|
|
if ((RolesSelected & (1 << Role)))
|
|
fprintf (Gbl.F.Out," checked=\"checked\"");
|
|
|
|
if (Disabled)
|
|
fprintf (Gbl.F.Out," disabled=\"disabled\"");
|
|
|
|
if (SendOnChange)
|
|
fprintf (Gbl.F.Out," onchange=\"document.getElementById('%s').submit();\"",
|
|
Gbl.Form.Id);
|
|
|
|
fprintf (Gbl.F.Out," />"
|
|
"%s"
|
|
"</label>"
|
|
"<br />",
|
|
Txt_ROLES_PLURAL_abc[Role][Usr_SEX_UNKNOWN]);
|
|
}
|
|
}
|
|
|
|
/*****************************************************************************/
|
|
/******************** Put hidden param with users' roles *********************/
|
|
/*****************************************************************************/
|
|
|
|
void Rol_PutHiddenParamRoles (unsigned Roles)
|
|
{
|
|
fprintf (Gbl.F.Out,"<input type=\"hidden\" name=\"Roles\" value=\"%u\" />",
|
|
Roles);
|
|
}
|
|
|
|
/*****************************************************************************/
|
|
/************************* Get selected users' roles *************************/
|
|
/*****************************************************************************/
|
|
|
|
unsigned Rol_GetSelectedRoles (void)
|
|
{
|
|
char StrRoles[Rol_NUM_ROLES * (10 + 1)];
|
|
const char *Ptr;
|
|
char UnsignedStr[10 + 1];
|
|
Rol_Role_t Role;
|
|
unsigned Roles;
|
|
|
|
/***** Try to get param "Roles" with multiple roles *****/
|
|
Roles = (unsigned)
|
|
Par_GetParToUnsignedLong ("Roles",
|
|
0, // 000...000
|
|
(1 << Rol_NUM_ROLES) - 1, // 111...111
|
|
0); // 000...000
|
|
|
|
/***** Try to get multiple param "Role" *****/
|
|
Par_GetParMultiToText ("Role",StrRoles,Rol_NUM_ROLES * (10 + 1));
|
|
for (Ptr = StrRoles;
|
|
*Ptr;)
|
|
{
|
|
Par_GetNextStrUntilSeparParamMult (&Ptr,UnsignedStr,10);
|
|
Role = Rol_ConvertUnsignedStrToRole (UnsignedStr);
|
|
if (Role != Rol_UNK)
|
|
Roles |= (1 << Role);
|
|
}
|
|
|
|
return Roles;
|
|
}
|
|
|
|
/*****************************************************************************/
|
|
/************ Get requested role of a user in current course *****************/
|
|
/*****************************************************************************/
|
|
|
|
Rol_Role_t Rol_GetRequestedRole (long UsrCod)
|
|
{
|
|
char Query[256];
|
|
MYSQL_RES *mysql_res;
|
|
MYSQL_ROW row;
|
|
Rol_Role_t Role = Rol_UNK;
|
|
|
|
/***** Get requested role from database *****/
|
|
sprintf (Query,"SELECT Role FROM crs_usr_requests"
|
|
" WHERE CrsCod=%ld AND UsrCod=%ld",
|
|
Gbl.CurrentCrs.Crs.CrsCod,UsrCod);
|
|
if (DB_QuerySELECT (Query,&mysql_res,"can not get requested role"))
|
|
{
|
|
/***** Get role *****/
|
|
row = mysql_fetch_row (mysql_res);
|
|
Role = Rol_ConvertUnsignedStrToRole (row[0]);
|
|
}
|
|
|
|
/***** Free structure that stores the query result *****/
|
|
DB_FreeMySQLResult (&mysql_res);
|
|
|
|
return Role;
|
|
}
|