Bug 11926: Render community koha statistic usages

Goals:
- Collecting Koha usage statistics
- Rendering stats on a community website
- Having a big bicture of how koha is used

3 parts in the project:
- this patch in koha
- hea-ws which collects data
- hea-app which renders data

Installation:
1/ Fill systempreferences:
UsageStatsLastUpdateTime UsageStatsID UsageStatsShare UsageStatsLibraryName
2/ Setup a cron in your crontab (ex: at 3:00 every first of the month):
0 3 1 * * export KOHA_CONF=/home/koha/etc/koha-conf.xml; export PERL5LIB=/home/koha/src; perl /home/koha/src/C4/UsageStats.pm

Signed-off-by: Chris Cormack <chris@bigballofwax.co.nz>

Signed-off-by: Katrin Fischer <katrin.fischer.83@web.de>
Signed-off-by: Tomas Cohen Arazi <tomascohen@gmail.com>

C4/UsageStats.pm

@@ -0,0 +1,95 @@
+package UsageStats;
+
+# Copyright 2000-2003 Katipo Communications
+# Copyright 2010 BibLibre
+# Parts Copyright 2010 Catalyst IT
+#
+# This file is part of Koha.
+#
+# Koha is free software; you can redistribute it and/or modify it under the
+# terms of the GNU General Public License as published by the Free Software
+# Foundation; either version 2 of the License, or (at your option) any later
+# version.
+#
+# Koha 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 General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along
+# with Koha; if not, write to the Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
+use strict;
+use C4::Context;
+use POSIX qw(strftime);
+use LWP::UserAgent;
+use JSON;
+
+sub NeedUpdate {
+    my $lastupdated = C4::Context->preference('UsageStatsLastUpdateTime') || 0;
+    my $now = strftime("%s", localtime);
+
+    # Need to launch cron.
+    return 1 if $now - $lastupdated >= 2592000;
+
+    # Cron no need to be launched.
+    return 0;
+}
+
+sub LaunchCron {
+    if (!C4::Context->preference('UsageStatsShare')) {
+      die ("UsageStats is not configured");
+    }
+    if (NeedUpdate) {
+        C4::Context->set_preference('UsageStatsLastUpdateTime', strftime("%s", localtime));
+        my $data = BuildReport();
+        ReportToComunity($data);
+    }
+}
+
+sub BuildReport {
+    my $report = {
+        'library' => {
+            'name' => C4::Context->preference('UsageStatsLibraryName'),
+            'id' => C4::Context->preference('UsageStatsID') || 0,
+        },
+    };
+
+    # Get database volumetry.
+    foreach (qw/biblio auth_header old_issues old_reserves borrowers aqorders subscription/) {
+        $report->{volumetry}{$_} = _count($_);
+    }
+
+    # Get systempreferences.
+    foreach (qw/IntranetBiblioDefaultView marcflavour/) {
+        $report->{systempreferences}{$_} = C4::Context->preference($_);
+    }
+    return $report;
+}
+
+sub ReportToComunity {
+    my $data = shift;
+    my $json = to_json($data);
+
+    my $url = C4::Context->config('mebaseurl');
+
+    my $ua = LWP::UserAgent->new;
+    my $req = HTTP::Request->new(POST => "$url/upload.pl");
+    $req->content_type('application/x-www-form-urlencoded');
+    $req->content("data=$json");
+    my $res = $ua->request($req);
+    my $content = from_json($res->decoded_content);
+    C4::Context->set_preference('UsageStatsID', $content->{library}{library_id});
+}
+
+sub _count {
+    my $table = shift;
+
+    my $dbh = C4::Context->dbh;
+    my $sth = $dbh->prepare("SELECT count(*) from $table");
+    $sth->execute;
+    return $sth->fetchrow_array;
+}
+
+&LaunchCron;
+1;

koha-tmpl/intranet-tmpl/prog/en/modules/admin/preferences/admin.pref

@@ -105,3 +105,28 @@ Administration:
                   yes: Allow
                   no: "Don't Allow"
             - Mozilla persona for login
+    Search Engine:
+        -
+            - pref: SearchEngine
+              default: Zebra
+              choices:
+                Solr: Solr
+                Zebra: Zebra
+            - is the search engine used.
+    Usage Stats:
+        -
+            - pref: UsageStatsLastUpdateTime
+              default: 0
+            - stores the last time when cron were launch
+        -
+            - pref: UsageStatsID
+              default:
+            -
+        -
+            - pref: UsageStatsShare
+              default:
+            -
+        -
+            - pref: UsageStatsLibraryName
+              default:
+            -