C4/Log.pm

   1 package C4::Log;
   2
   3 #package to deal with Logging Actions in DB
   4
   5
   6 # Copyright 2000-2002 Katipo Communications
   7 # Copyright 2011 MJ Ray and software.coop
   8 #
   9 # This file is part of Koha.
  10 #
  11 # Koha is free software; you can redistribute it and/or modify it
  12 # under the terms of the GNU General Public License as published by
  13 # the Free Software Foundation; either version 3 of the License, or
  14 # (at your option) any later version.
  15 #
  16 # Koha is distributed in the hope that it will be useful, but
  17 # WITHOUT ANY WARRANTY; without even the implied warranty of
  18 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  19 # GNU General Public License for more details.
  20 #
  21 # You should have received a copy of the GNU General Public License
  22 # along with Koha; if not, see <http://www.gnu.org/licenses>.
  23
  24 use strict;
  25 use warnings;
  26
  27 use C4::Context;
  28 use Koha::DateUtils;
  29
  30 use vars qw($VERSION @ISA @EXPORT);
  31
  32 BEGIN {
  33     # set the version for version checking
  34     $VERSION = 3.07.00.049;
  35         require Exporter;
  36         @ISA = qw(Exporter);
  37         @EXPORT = qw(&logaction &cronlogaction &GetLogStatus &displaylog &GetLogs);
  38 }
  39
  40 =head1 NAME
  41
  42 C4::Log - Koha Log Facility functions
  43
  44 =head1 SYNOPSIS
  45
  46   use C4::Log;
  47
  48 =head1 DESCRIPTION
  49
  50 The functions in this module perform various functions in order to log all the operations done on the Database, including deleting and undeleting books, adding/editing members, etc.
  51
  52 =head1 FUNCTIONS
  53
  54 =over 2
  55
  56 =item logaction
  57
  58   &logaction($modulename, $actionname, $objectnumber, $infos);
  59
  60 Adds a record into action_logs table to report the different changes upon the database.
  61 Each log entry includes the number of the user currently logged in.  For batch
  62 jobs, which operate without authenticating a user and setting up a session, the user
  63 number is set to 0, which is the same as the superlibrarian's number.
  64
  65 =cut
  66
  67 #'
  68 sub logaction {
  69     my ($modulename, $actionname, $objectnumber, $infos)=@_;
  70
  71     # Get ID of logged in user.  if called from a batch job,
  72     # no user session exists and C4::Context->userenv() returns
  73     # the scalar '0'.
  74     my $userenv = C4::Context->userenv();
  75     my $usernumber = (ref($userenv) eq 'HASH') ? $userenv->{'number'} : 0;
  76     $usernumber ||= 0;
  77
  78     my $dbh = C4::Context->dbh;
  79     my $sth=$dbh->prepare("Insert into action_logs (timestamp,user,module,action,object,info) values (now(),?,?,?,?,?)");
  80     $sth->execute($usernumber,$modulename,$actionname,$objectnumber,$infos);
  81     $sth->finish;
  82 }
  83
  84 =item cronlogaction
  85
  86   &cronlogaction($infos);
  87
  88 Convenience routine to add a record into action_logs table from a cron job.
  89 Logs the path and name of the calling script plus the information privided by param $infos.
  90
  91 =cut
  92
  93 #'
  94 sub cronlogaction {
  95     my ($infos)=@_;
  96     my $loginfo = (caller(0))[1];
  97     $loginfo .= ' ' . $infos if $infos;
  98     logaction( 'CRONJOBS', 'Run', undef, $loginfo ) if C4::Context->preference('CronjobLog');
  99 }
 100
 101
 102 =item GetLogStatus
 103
 104   $status = GetLogStatus;
 105
 106 C<$status> is a hasref like this example:
 107     $hash = {
 108         BorrowersLog   => 1,
 109         CataloguingLog => 0,
 110         IssueLog       => 0,
 111         ...
 112     }
 113
 114 =cut
 115
 116 #'
 117 sub GetLogStatus {
 118     my %hash;
 119     $hash{BorrowersLog}    = C4::Context->preference("BorrowersLog");
 120     $hash{CataloguingLog}  = C4::Context->preference("CataloguingLog");
 121     $hash{IssueLog}        = C4::Context->preference("IssueLog");
 122     $hash{ReturnLog}       = C4::Context->preference("ReturnLog");
 123     $hash{SubscriptionLog} = C4::Context->preference("SubscriptionLog");
 124     $hash{LetterLog}       = C4::Context->preference("LetterLog");
 125     $hash{FinesLog}        = C4::Context->preference("FinesLog");
 126     return \%hash;
 127 }
 128
 129 =item displaylog
 130
 131   &displaylog($modulename, @filters);
 132   $modulename is the name of the module on which the user wants to display logs
 133   @filters is an optional table of hash containing :
 134       - name : the name of the variable to filter
 135     - value : the value of the filter.... May be with * joker
 136
 137 returns a table of hash containing who did what on which object at what time
 138
 139 =cut
 140
 141 #'
 142 sub displaylog {
 143   my ($modulename, @filters) = @_;
 144     my $dbh = C4::Context->dbh;
 145     my $strsth=qq|
 146                 SELECT action_logs.timestamp, action_logs.action, action_logs.info,
 147                                 borrowers.cardnumber, borrowers.surname, borrowers.firstname, borrowers.userid,
 148                         biblio.biblionumber, biblio.title, biblio.author
 149         FROM action_logs
 150                 LEFT JOIN borrowers ON borrowers.borrowernumber=action_logs.user
 151         LEFT JOIN  biblio   ON action_logs.object=biblio.biblionumber
 152         WHERE action_logs.module = 'cataloguing'
 153         |;
 154         my %filtermap = ();
 155     if ($modulename eq "catalogue" or $modulename eq "acqui") {
 156                 %filtermap = (
 157                           user => 'borrowers.surname',
 158                          title => 'biblio.title',
 159                         author => 'biblio.author',
 160                 );
 161     } elsif ($modulename eq "members") {
 162         $strsth=qq|
 163                 SELECT action_logs.timestamp, action_logs.action, action_logs.info,
 164                         borrowers.cardnumber, borrowers.surname, borrowers.firstname, borrowers.userid,
 165                         bor2.cardnumber, bor2.surname, bor2.firstname, bor2.userid
 166         FROM action_logs
 167                 LEFT JOIN borrowers ON borrowers.borrowernumber=action_logs.user
 168                 LEFT JOIN borrowers as bor2 ON action_logs.object=bor2.borrowernumber
 169         WHERE action_logs.module = 'members'
 170                 |;
 171                 %filtermap = (
 172                        user => 'borrowers.surname',
 173                     surname => 'bor2.surname',
 174                   firstname => 'bor2.firstname',
 175                  cardnumber => 'bor2.cardnumber',
 176                 );
 177     } else {
 178                 return 0;
 179         }
 180
 181     if (@filters) {
 182                 foreach my $filter (@filters) {
 183                         my $tempname = $filter->{name}         or next;
 184                         (grep {/^$tempname$/} keys %filtermap) or next;
 185                         $filter->{value} =~ s/\*/%/g;
 186                         $strsth .= " AND " . $filtermap{$tempname} . " LIKE " . $filter->{value};
 187                 }
 188         }
 189     my $sth=$dbh->prepare($strsth);
 190     $sth->execute;
 191     my @results;
 192     my $count;
 193     my $hilighted=1;
 194     while (my $data = $sth->fetchrow_hashref){
 195         $data->{hilighted} = ($hilighted>0);
 196         $data->{info} =~ s/\n/<br\/>/g;
 197         $data->{day} = output_pref({ str => $data->{timestamp} });
 198         push @results, $data;
 199         $count++;
 200         $hilighted = -$hilighted;
 201     }
 202     return ($count, \@results);
 203 }
 204
 205 =item GetLogs
 206
 207 $logs = GetLogs($datefrom,$dateto,$user,\@modules,$action,$object,$info);
 208
 209 Return:
 210 C<$logs> is a ref to a hash which containts all columns from action_logs
 211
 212 =cut
 213
 214 sub GetLogs {
 215     my $datefrom = shift;
 216     my $dateto   = shift;
 217     my $user     = shift;
 218     my $modules   = shift;
 219     my $action   = shift;
 220     my $object   = shift;
 221     my $info     = shift;
 222
 223     my $iso_datefrom = output_pref({ dt => dt_from_string( $datefrom ), dateformat => 'iso', dateonly => 1 });
 224     my $iso_dateto = output_pref({ dt => dt_from_string( $dateto ), dateformat => 'iso', dateonly => 1 });
 225
 226     my $dbh = C4::Context->dbh;
 227     my $query = "
 228         SELECT *
 229         FROM   action_logs
 230         WHERE 1
 231     ";
 232
 233     my @parameters;
 234     $query .= " AND DATE_FORMAT(timestamp, '%Y-%m-%d') >= \"".$iso_datefrom."\" " if $iso_datefrom;   #fix me - mysql specific
 235     $query .= " AND DATE_FORMAT(timestamp, '%Y-%m-%d') <= \"".$iso_dateto."\" " if $iso_dateto;
 236     if($user ne "") {
 237         $query .= " AND user = ? ";
 238         push(@parameters,$user);
 239     }
 240     if($modules && scalar(@$modules)) {
 241         $query .= " AND module IN (".join(",",map {"?"} @$modules).") ";
 242         push(@parameters,@$modules);
 243     }
 244     if($action && scalar(@$action)) {
 245         $query .= " AND action IN (".join(",",map {"?"} @$action).") ";
 246         push(@parameters,@$action);
 247     }
 248     if($object) {
 249         $query .= " AND object = ? ";
 250         push(@parameters,$object);
 251     }
 252     if($info) {
 253         $query .= " AND info LIKE ? ";
 254         push(@parameters,"%".$info."%");
 255     }
 256
 257     my $sth = $dbh->prepare($query);
 258     $sth->execute(@parameters);
 259
 260     my @logs;
 261     while( my $row = $sth->fetchrow_hashref ) {
 262         push @logs , $row;
 263     }
 264     return \@logs;
 265 }
 266
 267 1;
 268 __END__
 269
 270 =back
 271
 272 =head1 AUTHOR
 273
 274 Koha Development Team <http://koha-community.org/>
 275
 276 =cut