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: # 09/04,09/06,09/28,09/29,09/30,10/2,10/5,10/26,10/28 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.course.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') { $advanced=1; }
99: }
100: }
101:
102: # -------------------------------------------------------- Generate Page Output
103: # --------------------------------------------------------------- Error Header?
104: if ($error) {
105: $r->print("<h1>LON-CAPA Access Control</h1>");
106: $r->print("<hr><pre>Access : ".
107: Apache::lonnet::plaintext($priv)."\n");
108: $r->print("Resource: $fn\n");
109: $r->print("Action : $msg\n</pre><hr>");
110: } else {
111: $r->print("<h1>LON-CAPA User Roles</h1>");
112: }
113: # -------------------------------------------------------- Choice or no choice?
114: if ($nochoose) {
115: if ($advanced) {
116: $r->print("<h2>Assigned User Roles</h2>\n");
117: } else {
118: $r->print("<h2>Sorry ...</h2>\nThis resource might be part of");
119: if ($ENV{'request.course.id'}) {
120: $r->print(' another');
121: } else {
122: $r->print(' a certain');
123: }
124: $r->print(' course.</body></html>');
125: return OK;
126: }
127: } else {
128: if ($advanced) {
129: $r->print("<h2>Select a User Role</h2>\n");
130: } else {
131: $r->print("<h2>Enter a Course</h2>\n");
132: }
133: $r->print('<form method=post action="'.(($fn)?$fn:$r->uri).'">');
134: $r->print('<input type=hidden name=orgurl value="'.$fn.'">');
135: $r->print('<input type=hidden name=selectrole value=1>');
136: }
137: # ----------------------------------------------------------------------- Table
138: $r->print('<table><tr>');
139: unless ($nochoose) { $r->print('<th> </th>'); }
140: if ($advanced) {
141: $r->print('<th>User Role</th><th colspan=2>Extent</th>'.
142: '<th>Start</th><th>End</th><th>Remark</th></tr>'."\n");
143: } else {
144: $r->print('<th>Course</th></tr>'."\n");
145: }
146:
147: foreach $envkey (sort keys %ENV) {
148: if ($envkey=~/^user\.role\./) {
149: my ($dum1,$dum2,$role,@pwhere)=split(/\./,$envkey);
150: my $where=join('.',@pwhere);
151: my $trolecode=$role.'.'.$where;
152: my ($tstart,$tend)=split(/\./,$ENV{$envkey});
153: my $tremark='';
154: my $tstatus='is';
155: my $tpstart=' ';
156: my $tpend=' ';
157: if ($tstart) {
158: if ($tstart>$then) {
159: $tstatus='future';
160: if ($tstart<$now) { $tstatus='will'; }
161: }
162: $tpstart=localtime($tstart);
163: }
164: if ($tend) {
165: if ($tend<$then) { $tstatus='expired'; }
166: if ($tend>$now) { $tstatus='will_not'; }
167: $tpend=localtime($tend);
168: }
169: if ($ENV{'request.role'} eq $trolecode) {
170: $tstatus='selected';
171: }
172: my $tbg;
173: if ($tstatus eq 'is') {
174: $tbg='#77FF77';
175: } elsif ($tstatus eq 'future') {
176: $tbg='#FFFF77';
177: } elsif ($tstatus eq 'will') {
178: $tbg='#FFAA77';
179: $tremark.='Active at next login. ';
180: } elsif ($tstatus eq 'expired') {
181: $tbg='#FF7777';
182: } elsif ($tstatus eq 'will_not') {
183: $tbg='#AAFF77';
184: $tremark.='Expired after logout. ';
185: } elsif ($tstatus eq 'selected') {
186: $tbg='#33FF33';
187: $tremark.='Currently selected. ';
188: }
189: my $trole;
190: if ($role =~ /^cr\//) {
191: my ($rdummy,$rdomain,$rauthor,$rrole)=split(/\//,$role);
192: $tremark.='<br>Defined by '.$rauthor.' at '.$rdomain.'.';
193: $trole=$rrole;
194: } else {
195: $trole=Apache::lonnet::plaintext($role);
196: }
197: my $ttype;
198: my $twhere;
199: my ($tdom,$trest,$tsection)=
200: split(/\//,Apache::lonnet::declutter($where));
201: if ($trest) {
202: $ttype='Course';
203: if ($tsection) {
204: $ttype.='<br>Section/Group: '.$tsection;
205: }
206: my $tcourseid=$tdom.'_'.$trest;
207: if ($ENV{'course.'.$tcourseid.'.description'}) {
208: $twhere=$ENV{'course.'.$tcourseid.'.description'};
209: } else {
210: my %newhash=Apache::lonnet::coursedescription($tcourseid);
211: if (%newhash) {
212: $twhere=$newhash{'description'};
213: } else {
214: $twhere='Currently not available';
215: $ENV{'course.'.$tcourseid.'.description'}=$twhere;
216: }
217: }
218: } elsif ($tdom) {
219: $ttype='Domain';
220: $twhere=$tdom;
221: } else {
222: $ttype='System';
223: $twhere='system wide';
224: }
225:
226: $r->print('<tr bgcolor='.$tbg.'>');
227: unless ($nochoose) {
228: if ($tstatus eq 'is') {
229: $r->print('<td><input type=submit value=Select name="'.
230: $trolecode.'"></td>');
231: } else {
232: $r->print('<td> </td>');
233: }
234: }
235: $r->print('<td>'.$trole.'</td><td>'.
236: $ttype.'</td><td>'.$twhere.'</td><td>'.$tpstart.
237: '</td><td>'.$tpend.
238: '</td><td>'.$tremark.' </td></tr>'."\n");
239: }
240: }
241: my $tremark='';
242: if ($ENV{'request.role'} eq 'cm') {
243: $r->print('<tr bgcolor="#33FF33">');
244: $tremark='Currently selected.';
245: } else {
246: $r->print('<tr bgcolor="#77FF77">');
247: }
248: unless ($nochoose) {
249: if ($ENV{'request.role'} ne 'cm') {
250: $r->print('<td><input type=submit value=Select name="cm"></td>');
251: } else {
252: $r->print('<td> </td>');
253: }
254: }
255: $r->print('<td colspan=5>No role specified'.
256: '</td><td>'.$tremark.' </td></tr>'."\n");
257:
258: $r->print('</table>');
259: unless ($nochoose) {
260: $r->print("</form>\n");
261: }
262: # ------------------------------------------------------------ Priviledges Info
263: if ($advanced) {
264: $r->print('<hr><h2>Current Priviledges</h2>');
265:
266: foreach $envkey (sort keys %ENV) {
267: if ($envkey=~/^user\.priv\.$ENV{'request.role'}\./) {
268: my $where=$envkey;
269: $where=~s/^user\.priv\.$ENV{'request.role'}\.//;
270: my $ttype;
271: my $twhere;
272: my ($tdom,$trest,$tsec)=
273: split(/\//,Apache::lonnet::declutter($where));
274: if ($trest) {
275: $ttype='Course';
276: $twhere=$ENV{'course.'.$tdom.'_'.$trest.'.description'};
277: if ($tsec) {
278: $twhere.=' (Section/Group: '.$tsec.')';
279: }
280: } elsif ($tdom) {
281: $ttype='Domain';
282: $twhere=$tdom;
283: } else {
284: $ttype='System';
285: $twhere='/';
286: }
287: $r->print("\n<h3>".$ttype.': '.$twhere.'</h3><ul>');
288: map {
289: if ($_) {
290: my ($prv,$restr)=split(/\&/,$_);
291: my $trestr='';
292: if ($restr ne 'F') {
293: my $i;
294: $trestr.=' (';
295: for ($i=0;$i<length($restr);$i++) {
296: $trestr.=
297: Apache::lonnet::plaintext(substr($restr,$i,1));
298: if ($i<length($restr)-1) { $trestr.=', '; }
299: }
300: $trestr.=')';
301: }
302: $r->print('<li>'.Apache::lonnet::plaintext($prv).$trestr.
303: '</li>');
304: }
305: } sort split(/:/,$ENV{$envkey});
306: $r->print('</ul>');
307: }
308: }
309: }
310: # -------------------------------------------------------------- Debug - remove
311:
312: $->print("<hr><h1>Debugging</h1><hr>\n");
313:
314: foreach $envkey (sort keys %ENV) {
315: $r->print("$envkey ---- $ENV{$envkey}<br>");
316: }
317:
318: # ------------------------------------------------------------------- End Debug
319:
320: $r->print("</body></html>\n");
321: return OK;
322: }
323:
324: 1;
325: __END__
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