1: # The LearningOnline Network with CAPA
2: # User Roles Screen
3: # (Directory Indexer
4: # (Login Screen
5: # 5/21/99,5/22,5/25,5/26,5/31,6/2,6/10,7/12,7/14 Gerd Kortemeyer)
6: # 11/23 Gerd Kortemeyer)
7: # 1/14,03/06,06/01,07/22,07/24,07/25,
8: # 09/04,09/06,09/28,09/29,09/30,10/2,10/5,10/26 Gerd Kortemeyer
9: #
10: package Apache::lonroles;
11:
12: use strict;
13: use Apache::lonnet();
14: use Apache::lonuserstate();
15: use Apache::Constants qw(:common);
16: use Apache::File();
17:
18: sub handler {
19:
20: my $r = shift;
21:
22: my $now=time;
23: my $then=$ENV{'user.login.time'};
24: my $envkey;
25:
26:
27: # ================================================================== Roles Init
28:
29: if ($ENV{'form.selectrole'}) {
30: &Apache::lonnet::appenv("request.course.id" => '',
31: "request.course.fn" => '',
32: "request.course.uri" => '',
33: "request.course.sec" => '',
34: "request.role" => 'cm');
35: foreach $envkey (keys %ENV) {
36: if ($envkey=~/^user\.role\./) {
37: my ($dum1,$dum2,$role,@pwhere)=split(/\./,$envkey);
38: my $where=join('.',@pwhere);
39: my $trolecode=$role.'.'.$where;
40: if ($ENV{'form.'.$trolecode}) {
41: my ($tstart,$tend)=split(/\./,$ENV{$envkey});
42: my $tstatus='is';
43: if ($tstart) {
44: if ($tstart>$then) {
45: $tstatus='future';
46: }
47: }
48: if ($tend) {
49: if ($tend<$then) { $tstatus='expired'; }
50: if ($tend>$now) { $tstatus='will_not'; }
51: }
52: if ($tstatus eq 'is') {
53: $where=~s/^\///;
54: my ($cdom,$cnum,$csec)=split(/\//,$where);
55: &Apache::lonnet::appenv('request.role' => $trolecode,
56: 'request.sec' => $csec);
57: if ($cnum) {
58: &Apache::lonuserstate::readmap($cdom.'/'.$cnum);
59: if ($ENV{'form.orgurl'}) {
60: $r->internal_redirect($ENV{'form.orgurl'});
61: return OK;
62: }
63: }
64: }
65: }
66: }
67: }
68: }
69:
70:
71: # =============================================================== No Roles Init
72:
73: $r->content_type('text/html');
74: $r->send_http_header;
75: return OK if $r->header_only;
76:
77: $r->print(<<ENDHEADER);
78: <html>
79: <head>
80: <title>LON-CAPA User Roles</title>
81: </head><body bgcolor="#FFFFFF">
82: ENDHEADER
83:
84: # ------------------------------------------ Get Error Message from Environment
85:
86: my ($fn,$priv,$nochoose,$error,$msg)=split(/:/,$ENV{'user.error.msg'});
87: if ($ENV{'user.error.msg'}) {
88: $r->log_reason(
89: "$msg for $ENV{'user.name'} domain $ENV{'user.domain'} access $priv",$fn);
90: }
91:
92: # ---------------------------------------------------------------- Who is this?
93:
94: my $advanced=0;
95: foreach $envkey (keys %ENV) {
96: if ($envkey=~/^user\.role\./) {
97: my ($dum1,$dum2,$role,@pwhere)=split(/\./,$envkey);
98: if ($role ne 'st') { $advanced=1; }
99: }
100: }
101:
102: # ---------------------------------------------- Get cached course descriptions
103:
104: my %cdes=Apache::lonnet::dump('nohist_coursedescriptions');
105:
106: # -------------------------------------------------------- Generate Page Output
107: # --------------------------------------------------------------- Error Header?
108: if ($error) {
109: $r->print("<h1>LON-CAPA Access Control</h1>");
110: $r->print("<hr><pre>Access : ".
111: Apache::lonnet::plaintext($priv)."\n");
112: $r->print("Resource: $fn\n");
113: $r->print("Action : $msg\n</pre><hr>");
114: } else {
115: $r->print("<h1>LON-CAPA User Roles</h1>");
116: }
117: # -------------------------------------------------------- Choice or no choice?
118: if ($nochoose) {
119: if ($advanced) {
120: $r->print("<h2>Assigned User Roles</h2>\n");
121: } else {
122: $r->print("<h2>Sorry ...</h2>\nThis resource might be part of");
123: if ($ENV{'request.course.id'}) {
124: $r->print(' another');
125: } else {
126: $r->print(' a certain');
127: }
128: $r->print(' course.</body></html>');
129: return OK;
130: }
131: } else {
132: if ($advanced) {
133: $r->print("<h2>Select a User Role</h2>\n");
134: } else {
135: $r->print("<h2>Enter a Course</h2>\n");
136: }
137: $r->print('<form method=post action="'.(($fn)?$fn:$r->uri).'">');
138: $r->print('<input type=hidden name=orgurl value="'.$fn.'">');
139: $r->print('<input type=hidden name=selectrole value=1>');
140: }
141: # ----------------------------------------------------------------------- Table
142: $r->print('<table><tr>');
143: unless ($nochoose) { $r->print('<th> </th>'); }
144: if ($advanced) {
145: $r->print('<th>User Role</th><th colspan=2>Extent</th>'.
146: '<th>Start</th><th>End</th><th>Remark</th></tr>'."\n");
147: } else {
148: $r->print('<th>Course</th></tr>'."\n");
149: }
150:
151: foreach $envkey (sort keys %ENV) {
152: if ($envkey=~/^user\.role\./) {
153: my ($dum1,$dum2,$role,@pwhere)=split(/\./,$envkey);
154: my $where=join('.',@pwhere);
155: my $trolecode=$role.'.'.$where;
156: my ($tstart,$tend)=split(/\./,$ENV{$envkey});
157: my $tremark='';
158: my $tstatus='is';
159: my $tpstart=' ';
160: my $tpend=' ';
161: if ($tstart) {
162: if ($tstart>$then) {
163: $tstatus='future';
164: if ($tstart<$now) { $tstatus='will'; }
165: }
166: $tpstart=localtime($tstart);
167: }
168: if ($tend) {
169: if ($tend<$then) { $tstatus='expired'; }
170: if ($tend>$now) { $tstatus='will_not'; }
171: $tpend=localtime($tend);
172: }
173: if ($ENV{'request.role'} eq $trolecode) {
174: $tstatus='selected';
175: }
176: my $tbg;
177: if ($tstatus eq 'is') {
178: $tbg='#77FF77';
179: } elsif ($tstatus eq 'future') {
180: $tbg='#FFFF77';
181: } elsif ($tstatus eq 'will') {
182: $tbg='#FFAA77';
183: $tremark.='Active at next login. ';
184: } elsif ($tstatus eq 'expired') {
185: $tbg='#FF7777';
186: } elsif ($tstatus eq 'will_not') {
187: $tbg='#AAFF77';
188: $tremark.='Expired after logout. ';
189: } elsif ($tstatus eq 'selected') {
190: $tbg='#33FF33';
191: $tremark.='Currently selected. ';
192: }
193: my $trole;
194: if ($role =~ /^cr\//) {
195: my ($rdummy,$rdomain,$rauthor,$rrole)=split(/\//,$role);
196: $tremark.='<br>Defined by '.$rauthor.' at '.$rdomain.'.';
197: $trole=$rrole;
198: } else {
199: $trole=Apache::lonnet::plaintext($role);
200: }
201: my $ttype;
202: my $twhere;
203: my ($tdom,$trest,$tsection)=
204: split(/\//,Apache::lonnet::declutter($where));
205: if ($trest) {
206: $ttype='Course';
207: if ($tsection) {
208: $ttype.='<br>Section/Group: '.$tsection;
209: }
210: my $tcourseid=$tdom.'/'.$trest;
211: if ($cdes{$tcourseid}) {
212: $twhere=$cdes{$tcourseid};
213: } else {
214: my %newhash=Apache::lonnet::coursedescription($tcourseid);
215: if (%newhash) {
216: $twhere=$newhash{'description'};
217: } else {
218: $twhere='Currently not available';
219: }
220: $cdes{$tcourseid}=$twhere;
221: }
222: } elsif ($tdom) {
223: $ttype='Domain';
224: $twhere=$tdom;
225: } else {
226: $ttype='System';
227: $twhere='system wide';
228: }
229:
230: $r->print('<tr bgcolor='.$tbg.'>');
231: unless ($nochoose) {
232: if ($tstatus eq 'is') {
233: $r->print('<td><input type=submit value=Select name="'.
234: $trolecode.'"></td>');
235: } else {
236: $r->print('<td> </td>');
237: }
238: }
239: $r->print('<td>'.$trole.'</td><td>'.
240: $ttype.'</td><td>'.$twhere.'</td><td>'.$tpstart.
241: '</td><td>'.$tpend.
242: '</td><td>'.$tremark.' </td></tr>'."\n");
243: }
244: }
245:
246: $r->print('</table>');
247: unless ($nochoose) {
248: $r->print("</form>\n");
249: }
250: # ------------------------------------------------------------ Priviledges Info
251: if ($advanced) {
252: $r->print('<hr><h2>Priviledges</h2>');
253:
254: foreach $envkey (sort keys %ENV) {
255: if ($envkey=~/^user\.priv\./) {
256: my ($dum1,$dum2,@pwhere)=split(/\./,$envkey);
257: my $where=join('.',@pwhere);
258: my $ttype;
259: my $twhere;
260: my ($tdom,$trest)=
261: split(/\//,Apache::lonnet::declutter($where));
262: if ($trest) {
263: $ttype='Course';
264: $twhere=$cdes{$tdom.'/'.$trest};
265: } elsif ($tdom) {
266: $ttype='Domain';
267: $twhere=$tdom;
268: } else {
269: $ttype='System';
270: $twhere='/';
271: }
272: $r->print("\n<h3>".$ttype.': '.$twhere.'</h3><ul>');
273: map {
274: if ($_) {
275: my ($prv,$restr)=split(/\&/,$_);
276: my $trestr='';
277: if ($restr ne 'F') {
278: my $i;
279: $trestr.=' (';
280: for ($i=0;$i<length($restr);$i++) {
281: $trestr.=
282: Apache::lonnet::plaintext(substr($restr,$i,1));
283: if ($i<length($restr)-1) { $trestr.=', '; }
284: }
285: $trestr.=')';
286: }
287: $r->print('<li>'.Apache::lonnet::plaintext($prv).$trestr.
288: '</li>');
289: }
290: } sort split(/:/,$ENV{$envkey});
291: $r->print('</ul>');
292: }
293: }
294: }
295: # -------------------------------------------------------------- Debug - remove
296:
297: $->print("<hr><h1>Debugging</h1><hr>\n");
298:
299: foreach $envkey (sort keys %ENV) {
300: $r->print("$envkey ---- $ENV{$envkey}<br>");
301: }
302:
303: # ------------------------------------------------------------------- End Debug
304:
305: $r->print("</body></html>\n");
306: return OK;
307: }
308:
309: 1;
310: __END__
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