1: # The LearningOnline Network
2: # Generate a menu page containing links to server status pages accessible
3: # to user.
4: #
5: # $Id: domainstatus.pm,v 1.5 2013/02/02 00:22:51 raeburn Exp $
6: #
7: # Copyright Michigan State University Board of Trustees
8: #
9: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
10: #
11: # LON-CAPA is free software; you can redistribute it and/or modify
12: # it under the terms of the GNU General Public License as published by
13: # the Free Software Foundation; either version 2 of the License, or
14: # (at your option) any later version.
15: #
16: # LON-CAPA is distributed in the hope that it will be useful,
17: # but 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 LON-CAPA; if not, write to the Free Software
23: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
24: #
25: # /home/httpd/html/adm/gpl.txt
26: #
27: # http://www.lon-capa.org/
28: #
29: #
30: package Apache::domainstatus;
31:
32: use strict;
33: use Apache::Constants qw(:common);
34: use Apache::lonnet;
35: use Apache::loncommon;
36: use Apache::lonhtmlcommon;
37: use Apache::lonlocal;
38: use LONCAPA::lonauthcgi;
39:
40: sub handler {
41: my $r = shift;
42: &Apache::loncommon::content_type($r,'text/html');
43: $r->send_http_header;
44: if ($r->header_only) {
45: return OK;
46: }
47:
48: &Apache::lonlocal::get_language_handle();
49: my $dom = &Apache::lonnet::default_login_domain();
50:
51: if (($env{'user.domain'} ne '') && ($env{'user.domain'} ne 'public')) {
52: $dom = $env{'user.domain'};
53: if ($env{'request.role.domain'} ne '') {
54: $dom = $env{'request.role.domain'};
55: }
56: }
57: my $domdesc = &Apache::lonnet::domain($dom,'description');
58:
59: my %candisplay;
60: my $titles = &LONCAPA::lonauthcgi::serverstatus_titles();
61: if (ref($titles) eq 'HASH') {
62: foreach my $page (keys(%{$titles})) {
63: if (&LONCAPA::lonauthcgi::can_view($page)) {
64: $candisplay{$page} = 'F';
65: } elsif (&LONCAPA::lonauthcgi::check_ipbased_access($page)) {
66: $candisplay{$page} = 'F';
67: }
68: }
69: }
70:
71: &Apache::lonhtmlcommon::clear_breadcrumbs();
72: &Apache::lonhtmlcommon::add_breadcrumb
73: ({href=>"/adm/domainstatus",
74: text=>"Server Status Information"});
75:
76: $r->print(&Apache::loncommon::start_page('Server Status').
77: &Apache::lonhtmlcommon::breadcrumbs('Server Status Information'));
78:
79: if (keys(%candisplay) > 0) {
80: $r->print('<h2>'.&mt('Server Utilities for Domain: [_1]','<i>'.$domdesc.'</i>').
81: '</h2>'.&print_status_menu(\%candisplay));
82: } else {
83: $r->print(
84: '<h2>'.&mt('No information available').'</h2>'
85: .'<p class="LC_warning">'
86: .&mt('Your current role and/or IP address does not have permission to display information about server status for servers in the domain: [_1].',
87: '<b>'.$domdesc.'</b> ('.$dom.')')
88: .'</p>'
89: );
90: }
91: $r->print(&Apache::loncommon::end_page());
92: return OK;
93: }
94:
95: sub print_status_menu {
96: my ($candisplay) = @_;
97: return '' if (ref($candisplay) ne 'HASH');
98: return &Apache::lonhtmlcommon::generate_menu(
99: &servermenu_items($candisplay));
100: }
101:
102: sub servermenu_items {
103: my ($candisplay) = @_;
104: my $titles = &LONCAPA::lonauthcgi::serverstatus_titles();
105: my $linknames = &serverstatus_links();
106: my @menu;
107: if ((ref($candisplay) eq 'HASH') && (ref($titles) eq 'HASH') &&
108: (ref($linknames) eq 'HASH')) {
109: @menu = ( {categorytitle => 'Status information',
110: items =>
111: [{
112: linktext => $linknames->{'userstatus'},
113: icon => '',
114: alttext => '',
115: #help => 'Domain_Coordination_Userstatus',
116: url => '/cgi-bin/userstatus.pl',
117: permission => $candisplay->{'userstatus'},
118: linktitle => $titles->{'userstatus'},
119: },
120: {
121: linktext => $linknames->{'lonstatus'},
122: icon => '',
123: alttext => '',
124: #help => 'Domain_Coordination_Connection_Status',
125: url => '/lon-status/',
126: permission => $candisplay->{'lonstatus'},
127: linktitle => $titles->{'lonstatus'},
128: },
129: {
130: linktext => $linknames->{'server-status'},
131: icon => '',
132: alttext => '',
133: #help => 'Domain_Coordination_Apache_Status',
134: url => '/server-status',
135: permission => $candisplay->{'server-status'},
136: linktitle => $titles->{'server-status'},
137: },
138: {
139: linktext => $linknames->{'clusterstatus'},
140: icon => '',
141: alttext => '',
142: #help => 'Domain_Coordination_Apache_Status',
143: url => '/cgi-bin/clusterstatus.pl',
144: permission => $candisplay->{'clusterstatus'},
145: linktitle => $titles->{'clusterstatus'},
146: },
147: {
148: linktext => $linknames->{'codeversions'},
149: icon => '',
150: alttext => '',
151: #help => 'Domain_Coordination_Code_Versions',
152: url => '/cgi-bin/lonversions.pl',
153: permission => $candisplay->{'codeversions'},
154: linktitle => $titles->{'codeversions'},
155: },
156: {
157: linktext => $linknames->{'checksums'},
158: icon => '',
159: alttext => '',
160: #help => 'Domain_Coordination_Code_Checksums',
161: url => '/cgi-bin/lonmodulecheck.pl',
162: permission => $candisplay->{'checksums'},
163: linktitle => $titles->{'checksums'},
164: },
165: {
166: linktext => $linknames->{'showenv'},
167: icon => '',
168: alttext => '',
169: #help => 'Domain_Coordination_User_Environment',
170: url => '/adm/test',
171: permission => $candisplay->{'showenv'},
172: linktitle => $titles->{'showenv'},
173: }]},
174: {categorytitle => 'Server Actions',
175: items =>
176: [{
177: linktext => $linknames->{'loncron'},
178: icon => '',
179: alttext => '',
180: #help => 'Domain_Coordination_Connection_Reload',
181: url => '/cgi-bin/loncron.pl',
182: permission => $candisplay->{'loncron'},
183: linktitle => $titles->{'loncron'},
184: },
185: {
186: linktext => $linknames->{'takeoffline'},
187: icon => '',
188: alttext => '',
189: #help => 'Domain_Coordination_Server_Offline',
190: url => '/cgi-bin/takeoffline.pl',
191: permission => $candisplay->{'takeoffline'},
192: linktitle => $titles->{'takeoffline'},
193: },
194: {
195: linktext => $linknames->{'takeonline'},
196: icon => '',
197: alttext => '',
198: #help => 'Domain_Coordination_Server_Online',
199: url => '/cgi-bin/takeonline.pl',
200: permission => $candisplay->{'takeonline'},
201: linktitle => $titles->{'takeonline'},
202: }]},
203: {categorytitle => 'Metadata Information',
204: items =>
205: [{
206: linktext => $linknames->{'metadata_keywords'},
207: icon => '',
208: alttext => '',
209: #help => 'Domain_Coordination_Metadata_Keywords',
210: url => '/cgi-bin/metadata_keywords.pl',
211: permission => $candisplay->{'metadata_keywords'},
212: linktitle => $titles->{'metadata_keywords'},
213: },
214: {
215: linktext => $linknames->{'metadata_harvest'},
216: icon => '',
217: alttext => '',
218: #help => 'Domain_Coordination_Metadata_Harvest',
219: url => '/cgi-bin/metadata_harvest.pl',
220: permission => $candisplay->{'metadata_harvest'},
221: linktitle => $titles->{'metadata_harvest'},
222: }]},
223: );
224: }
225: return @menu;
226: }
227:
228: sub serverstatus_links {
229: my $linkname = {
230: 'userstatus' => 'User Sessions',
231: 'lonstatus' => 'Connection Status',
232: 'server-status' => 'Apache Server Status',
233: 'clusterstatus' => 'Domain Status',
234: 'codeversions' => 'LON-CAPA Modules',
235: 'checksums' => 'Check for LON-CAPA Module changes',
236: 'showenv' => 'User Environment for current log-in',
237: 'loncron' => 'Update Connections and Refresh Status Information',
238: 'takeoffline' => 'Replace log-in page with offline notice',
239: 'takeonline' => 'Replace offline notice with log-in page',
240: 'metadata_keywords' => 'Display Metadata Keywords',
241: 'metadata_harvest' => 'Harvest Metadata Keywords',
242: };
243: return $linkname;
244: }
245:
246: 1;
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