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swad-core/swad_duplicate.c

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// swad_duplicate.c: duplicate users
/*
SWAD (Shared Workspace At a Distance),
is a web platform developed at the University of Granada (Spain),
and used to support university teaching.
This file is part of SWAD core.
Copyright (C) 1999-2017 Antonio Cañas Vargas
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General 3 License as
published by the Free Software Foundation, either version 3 of the
License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
/*****************************************************************************/
/*********************************** Headers *********************************/
/*****************************************************************************/
#include "swad_account.h"
#include "swad_database.h"
#include "swad_duplicate.h"
#include "swad_enrolment.h"
#include "swad_global.h"
#include "swad_layout.h"
#include "swad_profile.h"
#include "swad_role_type.h"
#include "swad_user.h"
/*****************************************************************************/
/****************************** Public constants *****************************/
/*****************************************************************************/
/*****************************************************************************/
/***************************** Private constants *****************************/
/*****************************************************************************/
/*****************************************************************************/
/****************************** Internal types *******************************/
/*****************************************************************************/
/*****************************************************************************/
/************** External global variables from others modules ****************/
/*****************************************************************************/
extern struct Globals Gbl;
/*****************************************************************************/
/************************* Internal global variables *************************/
/*****************************************************************************/
/*****************************************************************************/
/***************************** Private prototypes ****************************/
/*****************************************************************************/
static void Dup_ListSimilarUsrs (void);
static bool Dup_CheckIfUsrIsDup (long UsrCod);
static void Dup_PutButtonToViewSimilarUsrs (const struct UsrData *UsrDat);
static void Dup_PutButtonToEliminateUsrAccount (const struct UsrData *UsrDat);
static void Dup_PutButtonToRemoveFromListOfDupUsrs (const struct UsrData *UsrDat);
/*****************************************************************************/
/******************** Report a user as possible duplicate ********************/
/*****************************************************************************/
void Dup_ReportUsrAsPossibleDuplicate (void)
{
extern const char *Txt_Thank_you_for_reporting_a_possible_duplicate_user;
extern const char *Txt_User_not_found_or_you_do_not_have_permission_;
char Query[256];
bool ItsMe;
/***** Get user to be reported as possible duplicate *****/
if (Usr_GetParamOtherUsrCodEncryptedAndGetUsrData ())
{
/* Check if it's allowed to me to report users as possible duplicatedr */
ItsMe = (Gbl.Usrs.Me.UsrDat.UsrCod == Gbl.Usrs.Other.UsrDat.UsrCod);
if (!ItsMe && Gbl.Usrs.Me.LoggedRole >= Rol_TEACHER)
{
/***** Insert possible duplicate into database *****/
sprintf (Query,"REPLACE INTO usr_duplicated"
" (UsrCod,InformerCod,InformTime)"
" VALUES"
" (%ld,%ld,NOW())",
Gbl.Usrs.Other.UsrDat.UsrCod,
Gbl.Usrs.Me.UsrDat.UsrCod);
DB_QueryINSERT (Query,"can not report duplicate");
/***** Show feedback message *****/
Ale_ShowAlert (Ale_SUCCESS,Txt_Thank_you_for_reporting_a_possible_duplicate_user);
}
else
Ale_ShowAlert (Ale_WARNING,Txt_User_not_found_or_you_do_not_have_permission_);
}
else
Ale_ShowAlert (Ale_WARNING,Txt_User_not_found_or_you_do_not_have_permission_);
}
/*****************************************************************************/
/************ Put a link (form) to list possible duplicate users *************/
/*****************************************************************************/
void Dup_PutLinkToListDupUsrs (void)
{
extern const char *Txt_Duplicate_USERS;
/***** Put form to remove old users *****/
Lay_PutContextualLink (ActLstDupUsr,NULL,NULL,
"usrs64x64.gif",
Txt_Duplicate_USERS,Txt_Duplicate_USERS,
NULL);
}
/*****************************************************************************/
/*********************** List possible duplicate users ***********************/
/*****************************************************************************/
void Dup_ListDuplicateUsrs (void)
{
extern const char *Hlp_USERS_Duplicates_possibly_duplicate_users;
extern const char *Txt_Possibly_duplicate_users;
extern const char *Txt_Informants;
char Query[1024];
MYSQL_RES *mysql_res;
MYSQL_ROW row;
unsigned NumUsrs;
unsigned NumUsr;
struct UsrData UsrDat;
unsigned NumInformants;
/***** Start frame with list of possible duplicate users *****/
Lay_StartRoundFrame (NULL,Txt_Possibly_duplicate_users,
NULL,Hlp_USERS_Duplicates_possibly_duplicate_users);
/***** Build query *****/
sprintf (Query,"SELECT UsrCod,COUNT(*) AS N,MIN(UNIX_TIMESTAMP(InformTime)) AS T"
" FROM usr_duplicated"
" GROUP BY UsrCod"
" ORDER BY N DESC,T DESC");
NumUsrs = (unsigned) DB_QuerySELECT (Query,&mysql_res,"can not get possibly duplicate users");
/***** List possible duplicated users *****/
if (NumUsrs)
{
/***** Initialize field names *****/
Usr_SetUsrDatMainFieldNames ();
/***** Initialize structure with user's data *****/
Usr_UsrDataConstructor (&UsrDat);
/***** Start table *****/
Lay_StartTableCenter (2);
/***** Heading row with column names *****/
Gbl.Usrs.Listing.WithPhotos = true;
Usr_WriteHeaderFieldsUsrDat (false); // Columns for the data
/***** List users *****/
for (NumUsr = 0, Gbl.RowEvenOdd = 0;
NumUsr < NumUsrs;
NumUsr++)
{
row = mysql_fetch_row (mysql_res);
/* Get user code (row[0]) */
UsrDat.UsrCod = Str_ConvertStrCodToLongCod (row[0]);
if (Usr_ChkUsrCodAndGetAllUsrDataFromUsrCod (&UsrDat))
{
/* Get if user has accepted all his/her courses */
if (Usr_GetNumCrssOfUsr (UsrDat.UsrCod) != 0)
UsrDat.Accepted = (Usr_GetNumCrssOfUsrNotAccepted (UsrDat.UsrCod) == 0);
else
UsrDat.Accepted = false;
/* Write data of this user */
Usr_WriteRowUsrMainData (NumUsrs - NumUsr,&UsrDat,false);
fprintf (Gbl.F.Out,"<tr>"
"<td colspan=\"2\" class=\"COLOR%u\"></td>"
"<td colspan=\"%u\""
" class=\"DAT LEFT_MIDDLE COLOR%u\">",
Gbl.RowEvenOdd,
Usr_NUM_MAIN_FIELDS_DATA_USR-2,
Gbl.RowEvenOdd);
/* Write number of informants (row[1]) if greater than 1 */
if (sscanf (row[1],"%u",&NumInformants) != 1)
Lay_ShowErrorAndExit ("Wrong number of informants.");
if (NumInformants > 1)
fprintf (Gbl.F.Out,"%s: %u<br />",
Txt_Informants,
NumInformants);
/* Button to view users similar to this */
Dup_PutButtonToViewSimilarUsrs (&UsrDat);
/* Button to remove from list of possible duplicate users */
Dup_PutButtonToRemoveFromListOfDupUsrs (&UsrDat);
fprintf (Gbl.F.Out,"</td>"
"</tr>");
Gbl.RowEvenOdd = 1 - Gbl.RowEvenOdd;
}
else // User does not exists ==>
// remove user from table of possible duplicate users
Dup_RemoveUsrFromDuplicated (UsrDat.UsrCod);
}
/***** End table *****/
Lay_EndTable ();
/***** Free memory used for user's data *****/
Usr_UsrDataDestructor (&UsrDat);
}
else // There are no users
/***** Show warning indicating no users found *****/
Usr_ShowWarningNoUsersFound (Rol_UNKNOWN);
/***** End frame *****/
Lay_EndRoundFrame ();
}
/*****************************************************************************/
/********************* List similar users to a given one *********************/
/*****************************************************************************/
void Dup_GetUsrCodAndListSimilarUsrs (void)
{
extern const char *Txt_User_not_found_or_you_do_not_have_permission_;
/***** Get user to be removed from list of possible duplicates *****/
if (Usr_GetParamOtherUsrCodEncryptedAndGetUsrData ())
Dup_ListSimilarUsrs ();
else
Ale_ShowAlert (Ale_WARNING,Txt_User_not_found_or_you_do_not_have_permission_);
}
static void Dup_ListSimilarUsrs (void)
{
extern const char *Hlp_USERS_Duplicates_similar_users;
extern const char *Txt_Similar_users;
struct UsrData UsrDat;
char Query[512];
MYSQL_RES *mysql_res;
MYSQL_ROW row;
unsigned NumUsrs;
unsigned NumUsr;
/***** Start frame with list of possible duplicate users *****/
Lay_StartRoundFrame (NULL,Txt_Similar_users,
NULL,Hlp_USERS_Duplicates_similar_users);
/***** Build query *****/
if (Gbl.Usrs.Other.UsrDat.Surname1[0] &&
Gbl.Usrs.Other.UsrDat.FirstName[0]) // Name and surname 1 not empty
sprintf (Query,"SELECT DISTINCT UsrCod FROM"
"(SELECT DISTINCT UsrCod FROM usr_IDs"
" WHERE UsrID IN (SELECT UsrID FROM usr_IDs WHERE UsrCod=%ld)"
" UNION"
" SELECT UsrCod FROM usr_data"
" WHERE Surname1='%s' AND Surname2='%s' AND FirstName='%s')"
" AS U",
Gbl.Usrs.Other.UsrDat.UsrCod,
Gbl.Usrs.Other.UsrDat.Surname1,
Gbl.Usrs.Other.UsrDat.Surname2,
Gbl.Usrs.Other.UsrDat.FirstName);
else
sprintf (Query,"SELECT DISTINCT UsrCod FROM usr_IDs"
" WHERE UsrID IN (SELECT UsrID FROM usr_IDs WHERE UsrCod=%ld)",
Gbl.Usrs.Other.UsrDat.UsrCod);
NumUsrs = (unsigned) DB_QuerySELECT (Query,&mysql_res,"can not get similar users");
/***** List possible duplicated users *****/
if (NumUsrs)
{
/***** Initialize field names *****/
Usr_SetUsrDatMainFieldNames ();
/***** Initialize structure with user's data *****/
Usr_UsrDataConstructor (&UsrDat);
/***** Start table *****/
Lay_StartTableCenter (2);
/***** Heading row with column names *****/
Gbl.Usrs.Listing.WithPhotos = true;
Usr_WriteHeaderFieldsUsrDat (false); // Columns for the data
/***** List users *****/
for (NumUsr = 0, Gbl.RowEvenOdd = 0;
NumUsr < NumUsrs;
NumUsr++)
{
row = mysql_fetch_row (mysql_res);
/* Get user code (row[0]) */
UsrDat.UsrCod = Str_ConvertStrCodToLongCod (row[0]);
if (Usr_ChkUsrCodAndGetAllUsrDataFromUsrCod (&UsrDat))
{
/* Get if user has accepted all his/her courses */
if (Usr_GetNumCrssOfUsr (UsrDat.UsrCod) != 0)
UsrDat.Accepted = (Usr_GetNumCrssOfUsrNotAccepted (UsrDat.UsrCod) == 0);
else
UsrDat.Accepted = false;
/* Write data of this user */
Usr_WriteRowUsrMainData (NumUsrs - NumUsr,&UsrDat,false);
fprintf (Gbl.F.Out,"<tr>"
"<td colspan=\"2\" class=\"COLOR%u\"></td>"
"<td colspan=\"%u\" class=\"COLOR%u\">",
Gbl.RowEvenOdd,
Usr_NUM_MAIN_FIELDS_DATA_USR-2,
Gbl.RowEvenOdd);
/* Show details of user's profile */
Prf_ShowDetailsUserProfile (&UsrDat);
/* Write all the courses this user belongs to */
Crs_GetAndWriteCrssOfAUsr (&UsrDat,Rol_TEACHER);
Crs_GetAndWriteCrssOfAUsr (&UsrDat,Rol_STUDENT);
fprintf (Gbl.F.Out,"</td>"
"</tr>");
fprintf (Gbl.F.Out,"<tr>"
"<td colspan=\"2\" class=\"COLOR%u\"></td>"
"<td colspan=\"%u\" class=\"LEFT_TOP COLOR%u\""
" style=\"padding-bottom:20px;\">",
Gbl.RowEvenOdd,
Usr_NUM_MAIN_FIELDS_DATA_USR-2,
Gbl.RowEvenOdd);
/* Button to remove this user */
if (Acc_CheckIfICanEliminateAccount (UsrDat.UsrCod))
Dup_PutButtonToEliminateUsrAccount (&UsrDat);
/* Button to remove from list of possible duplicate users */
if (Dup_CheckIfUsrIsDup (UsrDat.UsrCod))
Dup_PutButtonToRemoveFromListOfDupUsrs (&UsrDat);
fprintf (Gbl.F.Out,"</td>"
"</tr>");
Gbl.RowEvenOdd = 1 - Gbl.RowEvenOdd;
}
}
/***** End table *****/
Lay_EndTable ();
/***** Free memory used for user's data *****/
Usr_UsrDataDestructor (&UsrDat);
}
else // There are no users
/***** Show warning indicating no users found *****/
Usr_ShowWarningNoUsersFound (Rol_UNKNOWN);
/***** End frame *****/
Lay_EndRoundFrame ();
}
/*****************************************************************************/
/********** Check if a user is in list of possible duplicate users ***********/
/*****************************************************************************/
static bool Dup_CheckIfUsrIsDup (long UsrCod)
{
char Query[128];
sprintf (Query,"SELECT COUNT(*) FROM usr_duplicated WHERE UsrCod=%ld",
UsrCod);
return (DB_QueryCOUNT (Query,"can not if user is in list of possible duplicate users") != 0);
}
/*****************************************************************************/
/********************* Put button to view similar users **********************/
/*****************************************************************************/
static void Dup_PutButtonToViewSimilarUsrs (const struct UsrData *UsrDat)
{
extern const char *Txt_Similar_users;
Act_FormStart (ActLstSimUsr);
Usr_PutParamUsrCodEncrypted (UsrDat->EncryptedUsrCod);
Lay_PutConfirmButtonInline (Txt_Similar_users);
Act_FormEnd ();
}
/*****************************************************************************/
/********* Put button to request the elimination of a user's account *********/
/*****************************************************************************/
static void Dup_PutButtonToEliminateUsrAccount (const struct UsrData *UsrDat)
{
extern const char *Txt_Eliminate_user_account;
Act_FormStart (ActUpdOth);
Usr_PutParamUsrCodEncrypted (UsrDat->EncryptedUsrCod);
Par_PutHiddenParamUnsigned ("RegRemAction",(unsigned) Enr_ELIMINATE_ONE_USR_FROM_PLATFORM);
Lay_PutRemoveButtonInline (Txt_Eliminate_user_account);
Act_FormEnd ();
}
/*****************************************************************************/
/****** Put button to remove user from list of possible duplicate users ******/
/*****************************************************************************/
static void Dup_PutButtonToRemoveFromListOfDupUsrs (const struct UsrData *UsrDat)
{
extern const char *Txt_Not_duplicated;
Act_FormStart (ActRemDupUsr);
Usr_PutParamUsrCodEncrypted (UsrDat->EncryptedUsrCod);
Lay_PutConfirmButtonInline (Txt_Not_duplicated);
Act_FormEnd ();
}
/*****************************************************************************/
/*********** Remove user from list of possible duplicate users ***************/
/*****************************************************************************/
void Dup_RemoveUsrFromListDupUsrs (void)
{
extern const char *Txt_User_not_found_or_you_do_not_have_permission_;
/***** Get user to be removed from list of possible duplicates *****/
if (Usr_GetParamOtherUsrCodEncryptedAndGetUsrData ())
{
/* Remove entry from database */
Dup_RemoveUsrFromDuplicated (Gbl.Usrs.Other.UsrDat.UsrCod);
/* Show list of similar users again */
// Dup_ListSimilarUsrsInternal ();
/* Show list of possible duplicated users again */
Dup_ListDuplicateUsrs ();
}
else
Ale_ShowAlert (Ale_WARNING,Txt_User_not_found_or_you_do_not_have_permission_);
}
/*****************************************************************************/
/******* Remove user from list of possible duplicate users in database *******/
/*****************************************************************************/
void Dup_RemoveUsrFromDuplicated (long UsrCod)
{
char Query[128];
/***** Remove user from list of duplicated users *****/
sprintf (Query,"DELETE FROM usr_duplicated WHERE UsrCod=%ld",
UsrCod);
DB_QueryDELETE (Query,"can not remove a user from possible duplicates");
}
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