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2     //$Header: /home/dashley/cvsrep/e3ft_gpl01/e3ft_gpl01/webprojs/fboprime/sw/phplib/usrs.inc,v 1.11 2006/11/04 21:09:31 dashley Exp $
3     //--------------------------------------------------------------------------------------------------------------
4     //usrs.inc--FboPrime Database usrs Table Manipulation Functions
5     //Copyright (C) 2006 David T. Ashley
6     //
7     //This program is free software; you can redistribute it and/or
8     //modify it under the terms of the GNU General Public License
9     //as published by the Free Software Foundation; either version 2
10     //of the License, or (at your option) any later version.
11     //
12     //This program is distributed in the hope that it will be useful,
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14     //MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15     //GNU General Public License for more details.
16     //
17     //You should have received a copy of the GNU General Public License
18     //along with this program; if not, write to the Free Software
19     //Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
20     //********************************************************************************
21     //Contains functions related to [operations on] the usrs table of the database.
22     //-------------------------------------------------------------------------------------------------
23     //Copyright 2006 David T. Ashley
24     //-------------------------------------------------------------------------------------------------
25     //This source code and any program in which it is compiled/used is provided under the GNU GENERAL
26     //PUBLIC LICENSE, Version 3, full license text below.
27     //-------------------------------------------------------------------------------------------------
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536     //covered work in a country, or your recipient's use of the covered work
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544     //or convey a specific copy of the covered work, then the patent license
545     //you grant is automatically extended to all recipients of the covered
546     //work and works based on it.
547     //
548     // A patent license is "discriminatory" if it does not include within
549     //the scope of its coverage, prohibits the exercise of, or is
550     //conditioned on the non-exercise of one or more of the rights that are
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556     //parties who would receive the covered work from you, a discriminatory
557     //patent license (a) in connection with copies of the covered work
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559     //for and in connection with specific products or compilations that
560     //contain the covered work, unless you entered into that arrangement,
561     //or that patent license was granted, prior to 28 March 2007.
562     //
563     // Nothing in this License shall be construed as excluding or limiting
564     //any implied license or other defenses to infringement that may
565     //otherwise be available to you under applicable patent law.
566     //
567     // 12. No Surrender of Others' Freedom.
568     //
569     // If conditions are imposed on you (whether by court order, agreement or
570     //otherwise) that contradict the conditions of this License, they do not
571     //excuse you from the conditions of this License. If you cannot convey a
572     //covered work so as to satisfy simultaneously your obligations under this
573     //License and any other pertinent obligations, then as a consequence you may
574     //not convey it at all. For example, if you agree to terms that obligate you
575     //to collect a royalty for further conveying from those to whom you convey
576     //the Program, the only way you could satisfy both those terms and this
577     //License would be to refrain entirely from conveying the Program.
578     //
579     // 13. Use with the GNU Affero General Public License.
580     //
581     // Notwithstanding any other provision of this License, you have
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588     //combination as such.
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592     // The Free Software Foundation may publish revised and/or new versions of
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606     // If the Program specifies that a proxy can decide which future
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611     // Later license versions may give you additional or different
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616     // 15. Disclaimer of Warranty.
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618     // THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
619     //APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
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639     // 17. Interpretation of Sections 15 and 16.
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641     // If the disclaimer of warranty and limitation of liability provided
642     //above cannot be given local legal effect according to their terms,
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644     //an absolute waiver of all civil liability in connection with the
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646     //copy of the Program in return for a fee.
647     //
648     // END OF TERMS AND CONDITIONS
649     //
650     // How to Apply These Terms to Your New Programs
651     //
652     // If you develop a new program, and you want it to be of the greatest
653     //possible use to the public, the best way to achieve this is to make it
654     //free software which everyone can redistribute and change under these terms.
655     //
656     // To do so, attach the following notices to the program. It is safest
657     //to attach them to the start of each source file to most effectively
658     //state the exclusion of warranty; and each file should have at least
659     //the "copyright" line and a pointer to where the full notice is found.
660     //
661     // <one line to give the program's name and a brief idea of what it does.>
662     // Copyright (C) <year> <name of author>
663     //
664     // This program is free software: you can redistribute it and/or modify
665     // it under the terms of the GNU General Public License as published by
666     // the Free Software Foundation, either version 3 of the License, or
667     // (at your option) any later version.
668     //
669     // This program is distributed in the hope that it will be useful,
670     // but WITHOUT ANY WARRANTY; without even the implied warranty of
671     // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
672     // GNU General Public License for more details.
673     //
674     // You should have received a copy of the GNU General Public License
675     // along with this program. If not, see <http://www.gnu.org/licenses/>.
676     //
677     //Also add information on how to contact you by electronic and paper mail.
678     //
679     // If the program does terminal interaction, make it output a short
680     //notice like this when it starts in an interactive mode:
681     //
682     // <program> Copyright (C) <year> <name of author>
683     // This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
684     // This is free software, and you are welcome to redistribute it
685     // under certain conditions; type `show c' for details.
686     //
687     //The hypothetical commands `show w' and `show c' should show the appropriate
688     //parts of the General Public License. Of course, your program's commands
689     //might be different; for a GUI interface, you would use an "about box".
690     //
691     // You should also get your employer (if you work as a programmer) or school,
692     //if any, to sign a "copyright disclaimer" for the program, if necessary.
693     //For more information on this, and how to apply and follow the GNU GPL, see
694     //<http://www.gnu.org/licenses/>.
695     //
696     // The GNU General Public License does not permit incorporating your program
697     //into proprietary programs. If your program is a subroutine library, you
698     //may consider it more useful to permit linking proprietary applications with
699     //the library. If this is what you want to do, use the GNU Lesser General
700     //Public License instead of this License. But first, please read
701     //<http://www.gnu.org/philosophy/why-not-lgpl.html>.
702     //-------------------------------------------------------------------------------------------------
703     //--------------------------------------------------------------------------------------------------------------
704     //
705     require_once("db.inc");
706     require_once("global.inc");
707     //
708     //--------------------------------------------------------------------------------------------------------------
709     //Constants for usrs table fields.
710     //
711     //Constants for the status field of the usrs table.
712     define("USRS_STATUS_INACTIVE", 0 );
713     define("USRS_STATUS_ACTIVE", 1 );
714     define("USRS_STATUS_MAX", 2 );
715     //
716     //Constants for the "role" of the usrs table. Note that only short tags and descriptive strings and included,
717     //the integer index (starting at 0) is implied by the location in the table.
718     //
719     define("USRS_ROLE_UNSPECIFIED", 0 );
720     define("USRS_ROLE_STUDPRESOLO", 1 );
721     define("USRS_ROLE_STUDSOLO", 2 );
722     define("USRS_ROLE_CUSTNONPILOT", 3 );
723     define("USRS_ROLE_CUSTPILOT", 4 );
724     define("USRS_ROLE_EMPLINE", 5 );
725     define("USRS_ROLE_EMPMECHANIC", 6 );
726     define("USRS_ROLE_EMPOFFICE", 7 );
727     define("USRS_ROLE_EMPFINST", 8 );
728     define("USRS_ROLE_OWNER", 9 );
729     define("USRS_ROLE_MAX", 10 );
730     $USRS_ROLE_ARRAY = array(
731     "unspecified", "Unspecified",
732     "studpresolo", "Student, Pre-Solo",
733     "studsolo", "Student, Solo",
734     "custnonpilot", "Customer, Non-Pilot",
735     "custpilot", "Customer, Pilot",
736     "empline", "Employee, Line",
737     "empmechanic", "Employee, Mechanic",
738     "empoffice", "Employee, Office",
739     "empfinst", "Employee, Flight Instructor",
740     "owner", "Owner"
741     );
742     //
743     //Constants for the sex (gender) of the user.
744     define("USRS_SEX_UNSPECIFIED", 0 );
745     define("USRS_SEX_FEMALE", 1 );
746     define("USRS_SEX_MALE", 2 );
747     //
748     //--------------------------------------------------------------------------------------------------------------
749     //Warning codes for the functions in usrs.inc and usrsx.inc. Warnings are typically returned as an array.
750     //
751     define("USRS_WARN_NONE", 0 ); //No warning.
752     //
753     //--------------------------------------------------------------------------------------------------------------
754     //Error codes for the functions in usrs.inc and usrsx.inc. Errors are typically returned as an array.
755     //
756     define("USRS_ERROR_NONE", 0 ); //No error.
757     define("USRS_ERROR_ACTION_PAR_ILLEGAL", 1 ); //The "action" parameter was illegal.
758     define("USRS_ERROR_IDX_ILLEGAL", 2 ); //The integer index supplied is illegal.
759     define("USRS_ERROR_USERID_ILLEGAL", 3 ); //The userid supplied is illegal.
760     define("USRS_ERROR_IDX_ON_ADD", 4 ); //The idx was specified on an add (illegal).
761     define("USRS_ERROR_NO_USERID_ON_ADD", 5 ); //The userid was missing on an add operation.
762     define("USRS_ERROR_DUP_USERID_ON_ADD", 6 ); //The userid was already in the table on an add operation.
763     define("USRS_ERROR_MOD_REC_NOT_PRESENT", 7 ); //The user record specified was not present.
764     define("USRS_ERROR_MOD_IDX_USERID_INCONSISTENT", 8 ); //The index and userid were both specified for modification,
765     //and they were inconsistent.
766     define("USRS_ERROR_EDITING_COLLISION", 9 ); //Attempt to modify a record that was modified since browser
767     //form copy loaded.
768     define("USRS_ERROR_UNSPECIFIED", 10 ); //An error of an unknown, unspecified, or unexpected type.
769     //
770     //--------------------------------------------------------------------------------------------------------------
771     //Returns TRUE if the passed string is acceptable for a userid, or an array of complaints
772     //if the passed string is not acceptable.
773     //
774     function USRS_userid_membership_test($arg)
775     {
776     $rvidx = 0;
777    
778     //Must be string type.
779     if (! is_string($arg))
780     {
781     $rv[$rvidx] = "The <i>userid</i> must be a string (internal software error).";
782     $rvidx++;
783     return($rv);
784     }
785    
786     //Must not be zero length.
787     $len = strlen($arg);
788     if ($len == 0)
789     {
790     $rv[$rvidx] = "The <i>userid</i> must be at least one character long.";
791     $rvidx++;
792     return($rv);
793     }
794    
795     //Must not be too long.
796     if ($len > 20)
797     {
798     $rv[$rvidx] = "The <i>userid</i> may not be longer than 20 characters.";
799     $rvidx++;
800     return($rv);
801     }
802    
803     //Split the string for further analysis.
804     $first_char = SubStr($arg, 0, 1);
805     $remainder = SubStr($arg, 1, $len-1);
806    
807     //First character must be lower-case letter.
808     if (strpos("abcdefghijklmnopqrstuvwxyz", $first_char) === FALSE)
809     {
810     $rv[$rvidx] = "The first character of the <i>userid</i> must be a letter.";
811     $rvidx++;
812     return($rv);
813     }
814    
815     //Remaining characters must be lower-case letters or digits.
816     for ($i=0; $i < ($len-1); $i++)
817     {
818     $c = SubStr($remainder, $i, 1);
819     if (strpos("abcdefghijklmnopqrstuvwxyz0123456789", $c) === FALSE)
820     {
821     $rv[$rvidx] = "All characters of the <i>userid</i> must be letters or digits.";
822     $rvidx++;
823     return($rv);
824     }
825     }
826    
827     //Seems OK.
828     return(TRUE);
829     }
830     //
831     //--------------------------------------------------------------------------------------------------------------
832     //Returns the index of the entry from the usrs table where the userid matches, or
833     //FALSE if the entry does not exist.
834     //
835     function USRS_userid_idx_map($arg)
836     {
837     global $GLOBAL_dbhandle;
838    
839     //Form the query string.
840     $query_string = "SELECT idx FROM usrs WHERE userid=\""
841     .
842     mysql_real_escape_string($arg, $GLOBAL_dbhandle)
843     .
844     "\"";
845    
846     //Execute the query.
847     $result = mysql_query($query_string, $GLOBAL_dbhandle);
848    
849     if ($result === FALSE)
850     {
851     //Unknown query failure. Return FALSE to the caller. No need to free,
852     //as this is not a result.
853     return(FALSE);
854     }
855     else
856     {
857     //Get the integer result.
858     $row = mysql_fetch_array($result, MYSQL_NUM);
859    
860     $rv = $row[0];
861    
862     //Free the result.
863     mysql_free_result($result);
864    
865     //Return the appropriate.
866     if($rv > 0)
867     return($rv);
868     else
869     return(FALSE);
870     }
871     }
872     //
873     //--------------------------------------------------------------------------------------------------------------
874     //Retrieves a two dimensional associative array corresponding to the USRS record
875     //with the passed USERID, or FALSE if the record does not exist.
876     //
877     function USRS_retrieve_by_userid($userid)
878     {
879     global $GLOBAL_dbhandle;
880    
881     //Form the query string.
882     $query_string = "SELECT * FROM usrs WHERE userid=\""
883     .
884     mysql_real_escape_string($userid, $GLOBAL_dbhandle)
885     .
886     "\"";
887    
888     //Execute the query.
889     $result = mysql_query($query_string, $GLOBAL_dbhandle);
890    
891     if ($result === FALSE)
892     {
893     //Unknown query failure. Return FALSE to the caller. No need to free,
894     //as this is not a result.
895     $rv = FALSE;
896     }
897     else
898     {
899     //Figure out how many rows in the result.
900     $nrows = mysql_num_rows($result);
901    
902     if ($nrows == 0)
903     {
904     //No rows in the result. The query failed to give us a record, but still
905     //we need to free the result set.
906    
907     //Free the result.
908     mysql_free_result($result);
909    
910     //The caller gets FALSE. No record with that SID.
911     $rv = FALSE;
912     }
913     else
914     {
915     //We have at least one record. Assume just one, because the USERID is supposed
916     //to be unique.
917     $rv = mysql_fetch_assoc($result); //Get the associative record.
918    
919     //Free the result.
920     mysql_free_result($result);
921     }
922    
923     //Return the value to the caller.
924     return($rv);
925     }
926     }
927     //
928     //--------------------------------------------------------------------------------------------------------------
929     //Retrieves a two dimensional associative array corresponding to the USRS record
930     //with the passed IDX, or FALSE if the record does not exist.
931     //
932     function USRS_retrieve_by_idx($idx)
933     {
934     global $GLOBAL_dbhandle;
935    
936     //Form the query string.
937     $query_string = "SELECT * FROM usrs WHERE idx=\""
938     .
939     mysql_real_escape_string($idx, $GLOBAL_dbhandle)
940     .
941     "\"";
942    
943     //Execute the query.
944     $result = mysql_query($query_string, $GLOBAL_dbhandle);
945    
946     if ($result === FALSE)
947     {
948     //Unknown query failure. Return FALSE to the caller. No need to free,
949     //as this is not a result.
950     $rv = FALSE;
951     }
952     else
953     {
954     //Figure out how many rows in the result.
955     $nrows = mysql_num_rows($result);
956    
957     if ($nrows == 0)
958     {
959     //No rows in the result. The query failed to give us a record, but still
960     //we need to free the result set.
961    
962     //Free the result.
963     mysql_free_result($result);
964    
965     //The caller gets FALSE. No record with that SID.
966     $rv = FALSE;
967     }
968     else
969     {
970     //We have at least one record. Assume just one, because the IDX is supposed
971     //to be unique.
972     $rv = mysql_fetch_assoc($result); //Get the associative record.
973    
974     //Free the result.
975     mysql_free_result($result);
976     }
977    
978     //Return the value to the caller.
979     return($rv);
980     }
981     }
982     //
983     //--------------------------------------------------------------------------------------------------------------
984     //Given an associative array containing information about a user, returns:
985     // a)The userid.
986     // b)The name to be displayed. The database rules may be lax, so need to protect for the possibility that
987     // the last name, first name, or both are missing.
988     //
989     function USRS_form_display_strings_a($uinfo, &$userid, &$dname)
990     {
991     if ($uinfo === FALSE)
992     {
993     $userid = "invaliduser";
994     $dname = "Invalid User";
995     }
996     else if ((strlen($uinfo["lname"]) > 0) && (strlen($uinfo["fname"]) > 0))
997     {
998     //This is the very normal case where we have a first and last name.
999     $userid = $uinfo["userid"];
1000     $dname = $uinfo["fname"] . " " . $uinfo["lname"];
1001     }
1002     else if ((strlen($uinfo["lname"]) > 0) && (strlen($uinfo["fname"]) == 0))
1003     {
1004     //First name seems to be absent.
1005     if ($uinfo["sex"] == USRS_SEX_UNSPECIFIED)
1006     {
1007     $title = "Mr. or Ms.";
1008     }
1009     else if ($uinfo["sex"] == USRS_SEX_FEMALE)
1010     {
1011     $title = "Ms.";
1012     }
1013     else
1014     {
1015     $title = "Mr.";
1016     }
1017    
1018     $userid = $uinfo["userid"];
1019     $dname = $title . " " . $uinfo["lname"];
1020     }
1021     else
1022     {
1023     //We want to refer to this user by number rather than name. The name seems to be
1024     //critically absent.
1025     $userid = $uinfo["userid"];
1026     $dname = sprintf("User #%d", $uinfo["idx"]);
1027     }
1028     }
1029     //
1030     //--------------------------------------------------------------------------------------------------------------
1031     //Updates the "mostrecentlogin" string of a user's database record. Input parameter is minimally
1032     //checked to be sure no surprises.
1033     //
1034     //The crmodsguid of the record isn't updated or checked. Reason is that this is an independent
1035     //matter (the most recent login time) and not something that can ever be changed directly by
1036     //a user.
1037     //
1038     function USRS_set_mostrecentlogin($userinfo, $mrl_in)
1039     {
1040     global $GLOBAL_dbhandle;
1041    
1042     //echo "<pre>\n";
1043     //print_r($sid_in);
1044     //print_r($sddt_in);
1045     //print_r($sdtim_in);
1046     //echo "</pre>\n";
1047    
1048     //Force this to be a string.
1049     $mrl_in = (string)$mrl_in;
1050    
1051     //Force this to be all numeric.
1052     $mrl_in = STRFUNC_force_into_subset($mrl_in, "0123456789");
1053    
1054     //If it is longer than 8 characters, whack it down.
1055     if (strlen($mrl_in) > 8)
1056     $mrl_in = SubStr($mrl_in, 0, 8);
1057    
1058     //Do the query. Nothing should go wrong.
1059     $query_string = "UPDATE usrs set mostrecentlogin=\""
1060     .
1061     mysql_real_escape_string ($mrl_in, $GLOBAL_dbhandle)
1062     .
1063     "\" WHERE idx=\""
1064     .
1065     $userinfo["idx"]
1066     .
1067     "\"";
1068     //Run the query. We don't much care whether it fails or succeeds (nothing to be done, anyway).
1069     mysql_query($query_string, $GLOBAL_dbhandle);
1070     }
1071     //
1072     //--------------------------------------------------------------------------------------------------------------
1073     //End of $RCSfile: usrs.inc,v $.
1074     //--------------------------------------------------------------------------------------------------------------
1075     ?>

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