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,
9: # 12/08,12/28,
10: # 01/15/01 Gerd Kortemeyer
11: #
12: package Apache::lonroles;
13:
14: use strict;
15: use Apache::lonnet();
16: use Apache::lonuserstate();
17: use Apache::Constants qw(:common);
18: use Apache::File();
19:
20: sub handler {
21:
22: my $r = shift;
23:
24: my $now=time;
25: my $then=$ENV{'user.login.time'};
26: my $envkey;
27:
28:
29: # ================================================================== Roles Init
30:
31: if ($ENV{'form.selectrole'}) {
32: &Apache::lonnet::appenv("request.course.id" => '',
33: "request.course.fn" => '',
34: "request.course.uri" => '',
35: "request.course.sec" => '',
36: "request.role" => 'cm');
37: foreach $envkey (keys %ENV) {
38: if ($envkey=~/^user\.role\./) {
39: my ($dum1,$dum2,$role,@pwhere)=split(/\./,$envkey);
40: my $where=join('.',@pwhere);
41: my $trolecode=$role.'.'.$where;
42: if ($ENV{'form.'.$trolecode}) {
43: my ($tstart,$tend)=split(/\./,$ENV{$envkey});
44: my $tstatus='is';
45: if ($tstart) {
46: if ($tstart>$then) {
47: $tstatus='future';
48: }
49: }
50: if ($tend) {
51: if ($tend<$then) { $tstatus='expired'; }
52: if ($tend<$now) { $tstatus='will_not'; }
53: }
54: if ($tstatus eq 'is') {
55: $where=~s/^\///;
56: my ($cdom,$cnum,$csec)=split(/\//,$where);
57: &Apache::lonnet::appenv('request.role' => $trolecode,
58: 'request.course.sec' => $csec);
59: if ($cnum) {
60: my ($furl,$ferr)=
61: &Apache::lonuserstate::readmap($cdom.'/'.$cnum);
62: if (($ENV{'form.orgurl'}) &&
63: ($ENV{'form.orgurl'}!~/^\/adm\/flip/)) {
64: $r->internal_redirect($ENV{'form.orgurl'});
65: return OK;
66: } else {
67: $r->content_type('text/html');
68: $r->send_http_header;
69: print (<<ENDREDIR);
70: <head><title>Entering Course</title>
71: <meta HTTP-EQUIV="Refresh" CONTENT="1; url=$furl">
72: </head>
73: <html>
74: <body bgcolor="#FFFFFF">
75: Entering course ...
76: </body>
77: </html>
78: ENDREDIR
79: return OK;
80: }
81: }
82: }
83: }
84: }
85: }
86: }
87:
88:
89: # =============================================================== No Roles Init
90:
91: $r->content_type('text/html');
92: $r->send_http_header;
93: return OK if $r->header_only;
94:
95: $r->print(<<ENDHEADER);
96: <html>
97: <head>
98: <title>LON-CAPA User Roles</title>
99: </head><body bgcolor="#FFFFFF">
100: ENDHEADER
101:
102: # ------------------------------------------ Get Error Message from Environment
103:
104: my ($fn,$priv,$nochoose,$error,$msg)=split(/:/,$ENV{'user.error.msg'});
105: if ($ENV{'user.error.msg'}) {
106: $r->log_reason(
107: "$msg for $ENV{'user.name'} domain $ENV{'user.domain'} access $priv",$fn);
108: }
109:
110: # ---------------------------------------------------------------- Who is this?
111:
112: my $advanced=0;
113: foreach $envkey (keys %ENV) {
114: if ($envkey=~/^user\.role\./) {
115: my ($dum1,$dum2,$role,@pwhere)=split(/\./,$envkey);
116: if ($role ne 'st') { $advanced=1; }
117: }
118: }
119:
120: # -------------------------------------------------------- Generate Page Output
121: # --------------------------------------------------------------- Error Header?
122: if ($error) {
123: $r->print("<h1>LON-CAPA Access Control</h1>");
124: $r->print("<hr><pre>Access : ".
125: Apache::lonnet::plaintext($priv)."\n");
126: $r->print("Resource: $fn\n");
127: $r->print("Action : $msg\n</pre><hr>");
128: } else {
129: $r->print("<h1>LON-CAPA User Roles</h1>");
130: }
131: # -------------------------------------------------------- Choice or no choice?
132: if ($nochoose) {
133: if ($advanced) {
134: $r->print("<h2>Assigned User Roles</h2>\n");
135: } else {
136: $r->print("<h2>Sorry ...</h2>\nThis resource might be part of");
137: if ($ENV{'request.course.id'}) {
138: $r->print(' another');
139: } else {
140: $r->print(' a certain');
141: }
142: $r->print(' course.</body></html>');
143: return OK;
144: }
145: } else {
146: if ($advanced) {
147: $r->print("<h2>Select a User Role</h2>\n");
148: } else {
149: $r->print("<h2>Enter a Course</h2>\n");
150: }
151: if (($ENV{'REDIRECT_QUERY_STRING'}) && ($fn)) {
152: $fn.='?'.$ENV{'REDIRECT_QUERY_STRING'};
153: }
154: $r->print('<form method=post action="'.(($fn)?$fn:$r->uri).'">');
155: $r->print('<input type=hidden name=orgurl value="'.$fn.'">');
156: $r->print('<input type=hidden name=selectrole value=1>');
157: }
158: # ----------------------------------------------------------------------- Table
159: $r->print('<table><tr>');
160: unless ($nochoose) { $r->print('<th> </th>'); }
161: $r->print('<th>User Role</th><th colspan=2>Extent</th>'.
162: '<th>Start</th><th>End</th><th>Remark</th></tr>'."\n");
163:
164: foreach $envkey (sort keys %ENV) {
165: if ($envkey=~/^user\.role\./) {
166: my ($dum1,$dum2,$role,@pwhere)=split(/\./,$envkey);
167: my $where=join('.',@pwhere);
168: my $trolecode=$role.'.'.$where;
169: my ($tstart,$tend)=split(/\./,$ENV{$envkey});
170: my $tremark='';
171: my $tstatus='is';
172: my $tpstart=' ';
173: my $tpend=' ';
174: if ($tstart) {
175: if ($tstart>$then) {
176: $tstatus='future';
177: if ($tstart<$now) { $tstatus='will'; }
178: }
179: $tpstart=localtime($tstart);
180: }
181: if ($tend) {
182: if ($tend<$then) { $tstatus='expired'; }
183: if ($tend<$now) { $tstatus='will_not'; }
184: $tpend=localtime($tend);
185: }
186: if ($ENV{'request.role'} eq $trolecode) {
187: $tstatus='selected';
188: }
189: my $tbg;
190: if ($tstatus eq 'is') {
191: $tbg='#77FF77';
192: } elsif ($tstatus eq 'future') {
193: $tbg='#FFFF77';
194: } elsif ($tstatus eq 'will') {
195: $tbg='#FFAA77';
196: $tremark.='Active at next login. ';
197: } elsif ($tstatus eq 'expired') {
198: $tbg='#FF7777';
199: } elsif ($tstatus eq 'will_not') {
200: $tbg='#AAFF77';
201: $tremark.='Expired after logout. ';
202: } elsif ($tstatus eq 'selected') {
203: $tbg='#11CC55';
204: $tremark.='Currently selected. ';
205: }
206: my $trole;
207: if ($role =~ /^cr\//) {
208: my ($rdummy,$rdomain,$rauthor,$rrole)=split(/\//,$role);
209: $tremark.='<br>Defined by '.$rauthor.' at '.$rdomain.'.';
210: $trole=$rrole;
211: } else {
212: $trole=Apache::lonnet::plaintext($role);
213: }
214: my $ttype;
215: my $twhere;
216: my ($tdom,$trest,$tsection)=
217: split(/\//,Apache::lonnet::declutter($where));
218: if ($trest) {
219: $ttype='Course';
220: if ($tsection) {
221: $ttype.='<br>Section/Group: '.$tsection;
222: }
223: my $tcourseid=$tdom.'_'.$trest;
224: if ($ENV{'course.'.$tcourseid.'.description'}) {
225: $twhere=$ENV{'course.'.$tcourseid.'.description'};
226: } else {
227: my %newhash=Apache::lonnet::coursedescription($tcourseid);
228: if (%newhash) {
229: $twhere=$newhash{'description'};
230: } else {
231: $twhere='Currently not available';
232: $ENV{'course.'.$tcourseid.'.description'}=$twhere;
233: }
234: }
235: } elsif ($tdom) {
236: $ttype='Domain';
237: $twhere=$tdom;
238: } else {
239: $ttype='System';
240: $twhere='system wide';
241: }
242:
243: $r->print('<tr bgcolor='.$tbg.'>');
244: unless ($nochoose) {
245: if ($tstatus eq 'is') {
246: $r->print('<td><input type=submit value=Select name="'.
247: $trolecode.'"></td>');
248: } else {
249: $r->print('<td> </td>');
250: }
251: }
252: $r->print('<td>'.$trole.'</td><td>'.
253: $ttype.'</td><td>'.$twhere.'</td><td>'.$tpstart.
254: '</td><td>'.$tpend.
255: '</td><td>'.$tremark.' </td></tr>'."\n");
256: }
257: }
258: my $tremark='';
259: if ($ENV{'request.role'} eq 'cm') {
260: $r->print('<tr bgcolor="#11CC55">');
261: $tremark='Currently selected.';
262: } else {
263: $r->print('<tr bgcolor="#77FF77">');
264: }
265: unless ($nochoose) {
266: if ($ENV{'request.role'} ne 'cm') {
267: $r->print('<td><input type=submit value=Select name="cm"></td>');
268: } else {
269: $r->print('<td> </td>');
270: }
271: }
272: $r->print('<td colspan=5>No role specified'.
273: '</td><td>'.$tremark.' </td></tr>'."\n");
274:
275: $r->print('</table>');
276: unless ($nochoose) {
277: $r->print("</form>\n");
278: }
279: # ------------------------------------------------------------ Priviledges Info
280: if ($advanced) {
281: $r->print('<hr><h2>Current Priviledges</h2>');
282:
283: foreach $envkey (sort keys %ENV) {
284: if ($envkey=~/^user\.priv\.$ENV{'request.role'}\./) {
285: my $where=$envkey;
286: $where=~s/^user\.priv\.$ENV{'request.role'}\.//;
287: my $ttype;
288: my $twhere;
289: my ($tdom,$trest,$tsec)=
290: split(/\//,Apache::lonnet::declutter($where));
291: if ($trest) {
292: $ttype='Course';
293: $twhere=$ENV{'course.'.$tdom.'_'.$trest.'.description'};
294: if ($tsec) {
295: $twhere.=' (Section/Group: '.$tsec.')';
296: }
297: } elsif ($tdom) {
298: $ttype='Domain';
299: $twhere=$tdom;
300: } else {
301: $ttype='System';
302: $twhere='/';
303: }
304: $r->print("\n<h3>".$ttype.': '.$twhere.'</h3><ul>');
305: map {
306: if ($_) {
307: my ($prv,$restr)=split(/\&/,$_);
308: my $trestr='';
309: if ($restr ne 'F') {
310: my $i;
311: $trestr.=' (';
312: for ($i=0;$i<length($restr);$i++) {
313: $trestr.=
314: Apache::lonnet::plaintext(substr($restr,$i,1));
315: if ($i<length($restr)-1) { $trestr.=', '; }
316: }
317: $trestr.=')';
318: }
319: $r->print('<li>'.Apache::lonnet::plaintext($prv).$trestr.
320: '</li>');
321: }
322: } sort split(/:/,$ENV{$envkey});
323: $r->print('</ul>');
324: }
325: }
326: }
327:
328: $r->print("</body></html>\n");
329: return OK;
330: }
331:
332: 1;
333: __END__
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