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: # 02/27/01 Scott Harrison
12: # 03/02 Gerd Kortemeyer
13:
14: package Apache::lonroles;
15:
16: use strict;
17: use Apache::lonnet();
18: use Apache::lonuserstate();
19: use Apache::Constants qw(:common);
20: use Apache::File();
21:
22: sub handler {
23:
24: my $r = shift;
25:
26: my $now=time;
27: my $then=$ENV{'user.login.time'};
28: my $envkey;
29:
30:
31: # ================================================================== Roles Init
32:
33: if ($ENV{'form.selectrole'}) {
34: &Apache::lonnet::appenv("request.course.id" => '',
35: "request.course.fn" => '',
36: "request.course.uri" => '',
37: "request.course.sec" => '',
38: "request.role" => 'cm');
39: foreach $envkey (keys %ENV) {
40: if ($envkey=~/^user\.role\./) {
41: my ($dum1,$dum2,$role,@pwhere)=split(/\./,$envkey);
42: my $where=join('.',@pwhere);
43: my $trolecode=$role.'.'.$where;
44: if ($ENV{'form.'.$trolecode}) {
45: my ($tstart,$tend)=split(/\./,$ENV{$envkey});
46: my $tstatus='is';
47: if ($tstart) {
48: if ($tstart>$then) {
49: $tstatus='future';
50: }
51: }
52: if ($tend) {
53: if ($tend<$then) { $tstatus='expired'; }
54: if ($tend<$now) { $tstatus='will_not'; }
55: }
56: if ($tstatus eq 'is') {
57: $where=~s/^\///;
58: my ($cdom,$cnum,$csec)=split(/\//,$where);
59: &Apache::lonnet::appenv('request.role' => $trolecode,
60: 'request.course.sec' => $csec);
61: if ($cnum) {
62: my ($furl,$ferr)=
63: &Apache::lonuserstate::readmap($cdom.'/'.$cnum);
64: if (($ENV{'form.orgurl'}) &&
65: ($ENV{'form.orgurl'}!~/^\/adm\/flip/)) {
66: $r->internal_redirect($ENV{'form.orgurl'});
67: return OK;
68: } else {
69: $r->content_type('text/html');
70: $r->send_http_header;
71: print (<<ENDREDIR);
72: <head><title>Entering Course</title>
73: <meta HTTP-EQUIV="Refresh" CONTENT="1; url=$furl">
74: </head>
75: <html>
76: <body bgcolor="#FFFFFF">
77: Entering course ...
78: </body>
79: </html>
80: ENDREDIR
81: return OK;
82: }
83: }
84: }
85: }
86: }
87: }
88: }
89:
90:
91: # =============================================================== No Roles Init
92:
93: $r->content_type('text/html');
94: $r->send_http_header;
95: return OK if $r->header_only;
96:
97: $r->print(<<ENDHEADER);
98: <html>
99: <head>
100: <title>LON-CAPA User Roles</title>
101: </head><body bgcolor="#FFFFFF">
102: <script>window.focus();</script>
103: ENDHEADER
104:
105: # ------------------------------------------ Get Error Message from Environment
106:
107: my ($fn,$priv,$nochoose,$error,$msg)=split(/:/,$ENV{'user.error.msg'});
108: if ($ENV{'user.error.msg'}) {
109: $r->log_reason(
110: "$msg for $ENV{'user.name'} domain $ENV{'user.domain'} access $priv",$fn);
111: }
112:
113: # ---------------------------------------------------------------- Who is this?
114:
115: my $advanced=0;
116: foreach $envkey (keys %ENV) {
117: if ($envkey=~/^user\.role\./) {
118: my ($dum1,$dum2,$role,@pwhere)=split(/\./,$envkey);
119: if ($role ne 'st') { $advanced=1; }
120: }
121: }
122:
123: # -------------------------------------------------------- Generate Page Output
124: # --------------------------------------------------------------- Error Header?
125: if ($error) {
126: $r->print("<h1>LON-CAPA Access Control</h1>");
127: $r->print("<hr><pre>Access : ".
128: Apache::lonnet::plaintext($priv)."\n");
129: $r->print("Resource: $fn\n");
130: $r->print("Action : $msg\n</pre><hr>");
131: } else {
132: $r->print("<h1>LON-CAPA User Roles</h1>");
133: }
134: # -------------------------------------------------------- Choice or no choice?
135: if ($nochoose) {
136: if ($advanced) {
137: $r->print("<h2>Assigned User Roles</h2>\n");
138: } else {
139: $r->print("<h2>Sorry ...</h2>\nThis resource might be part of");
140: if ($ENV{'request.course.id'}) {
141: $r->print(' another');
142: } else {
143: $r->print(' a certain');
144: }
145: $r->print(' course.</body></html>');
146: return OK;
147: }
148: } else {
149: if ($advanced) {
150: $r->print("<h2>Select a User Role</h2>\n");
151: } else {
152: $r->print("<h2>Enter a Course</h2>\n");
153: }
154: if (($ENV{'REDIRECT_QUERY_STRING'}) && ($fn)) {
155: $fn.='?'.$ENV{'REDIRECT_QUERY_STRING'};
156: }
157: $r->print('<form method=post action="'.(($fn)?$fn:$r->uri).'">');
158: $r->print('<input type=hidden name=orgurl value="'.$fn.'">');
159: $r->print('<input type=hidden name=selectrole value=1>');
160: }
161: # ----------------------------------------------------------------------- Table
162: $r->print('<table><tr>');
163: unless ($nochoose) { $r->print('<th> </th>'); }
164: $r->print('<th>User Role</th><th colspan=2>Extent</th>'.
165: '<th>Start</th><th>End</th><th>Remark</th></tr>'."\n");
166:
167: foreach $envkey (sort keys %ENV) {
168: if ($envkey=~/^user\.role\./) {
169: my ($dum1,$dum2,$role,@pwhere)=split(/\./,$envkey);
170: my $where=join('.',@pwhere);
171: my $trolecode=$role.'.'.$where;
172: my ($tstart,$tend)=split(/\./,$ENV{$envkey});
173: my $tremark='';
174: my $tstatus='is';
175: my $tpstart=' ';
176: my $tpend=' ';
177: if ($tstart) {
178: if ($tstart>$then) {
179: $tstatus='future';
180: if ($tstart<$now) { $tstatus='will'; }
181: }
182: $tpstart=localtime($tstart);
183: }
184: if ($tend) {
185: if ($tend<$then) {
186: $tstatus='expired';
187: } elsif ($tend<$now) {
188: $tstatus='will_not';
189: }
190: $tpend=localtime($tend);
191: }
192: if ($ENV{'request.role'} eq $trolecode) {
193: $tstatus='selected';
194: }
195: my $tbg;
196: if ($tstatus eq 'is') {
197: $tbg='#77FF77';
198: } elsif ($tstatus eq 'future') {
199: $tbg='#FFFF77';
200: } elsif ($tstatus eq 'will') {
201: $tbg='#FFAA77';
202: $tremark.='Active at next login. ';
203: } elsif ($tstatus eq 'expired') {
204: $tbg='#FF7777';
205: } elsif ($tstatus eq 'will_not') {
206: $tbg='#AAFF77';
207: $tremark.='Expired after logout. ';
208: } elsif ($tstatus eq 'selected') {
209: $tbg='#11CC55';
210: $tremark.='Currently selected. ';
211: }
212: my $trole;
213: if ($role =~ /^cr\//) {
214: my ($rdummy,$rdomain,$rauthor,$rrole)=split(/\//,$role);
215: $tremark.='<br>Defined by '.$rauthor.' at '.$rdomain.'.';
216: $trole=$rrole;
217: } else {
218: $trole=Apache::lonnet::plaintext($role);
219: }
220: my $ttype;
221: my $twhere;
222: my ($tdom,$trest,$tsection)=
223: split(/\//,Apache::lonnet::declutter($where));
224: if ($trest) {
225: $ttype='Course';
226: if ($tsection) {
227: $ttype.='<br>Section/Group: '.$tsection;
228: }
229: my $tcourseid=$tdom.'_'.$trest;
230: if ($ENV{'course.'.$tcourseid.'.description'}) {
231: $twhere=$ENV{'course.'.$tcourseid.'.description'};
232: } else {
233: my %newhash=Apache::lonnet::coursedescription($tcourseid);
234: if (%newhash) {
235: $twhere=$newhash{'description'};
236: } else {
237: $twhere='Currently not available';
238: $ENV{'course.'.$tcourseid.'.description'}=$twhere;
239: }
240: }
241: } elsif ($tdom) {
242: $ttype='Domain';
243: $twhere=$tdom;
244: } else {
245: $ttype='System';
246: $twhere='system wide';
247: }
248:
249: $r->print('<tr bgcolor='.$tbg.'>');
250: unless ($nochoose) {
251: if ($tstatus eq 'is') {
252: $r->print('<td><input type=submit value=Select name="'.
253: $trolecode.'"></td>');
254: } else {
255: $r->print('<td> </td>');
256: }
257: }
258: $r->print('<td>'.$trole.'</td><td>'.
259: $ttype.'</td><td>'.$twhere.'</td><td>'.$tpstart.
260: '</td><td>'.$tpend.
261: '</td><td>'.$tremark.' </td></tr>'."\n");
262: }
263: }
264: my $tremark='';
265: if ($ENV{'request.role'} eq 'cm') {
266: $r->print('<tr bgcolor="#11CC55">');
267: $tremark='Currently selected.';
268: } else {
269: $r->print('<tr bgcolor="#77FF77">');
270: }
271: unless ($nochoose) {
272: if ($ENV{'request.role'} ne 'cm') {
273: $r->print('<td><input type=submit value=Select name="cm"></td>');
274: } else {
275: $r->print('<td> </td>');
276: }
277: }
278: $r->print('<td colspan=5>No role specified'.
279: '</td><td>'.$tremark.' </td></tr>'."\n");
280:
281: $r->print('</table>');
282: unless ($nochoose) {
283: $r->print("</form>\n");
284: }
285: # ------------------------------------------------------------ Privileges Info
286: if ($advanced) {
287: $r->print('<hr><h2>Current Privileges</h2>');
288:
289: foreach $envkey (sort keys %ENV) {
290: if ($envkey=~/^user\.priv\.$ENV{'request.role'}\./) {
291: my $where=$envkey;
292: $where=~s/^user\.priv\.$ENV{'request.role'}\.//;
293: my $ttype;
294: my $twhere;
295: my ($tdom,$trest,$tsec)=
296: split(/\//,Apache::lonnet::declutter($where));
297: if ($trest) {
298: $ttype='Course';
299: $twhere=$ENV{'course.'.$tdom.'_'.$trest.'.description'};
300: if ($tsec) {
301: $twhere.=' (Section/Group: '.$tsec.')';
302: }
303: } elsif ($tdom) {
304: $ttype='Domain';
305: $twhere=$tdom;
306: } else {
307: $ttype='System';
308: $twhere='/';
309: }
310: $r->print("\n<h3>".$ttype.': '.$twhere.'</h3><ul>');
311: map {
312: if ($_) {
313: my ($prv,$restr)=split(/\&/,$_);
314: my $trestr='';
315: if ($restr ne 'F') {
316: my $i;
317: $trestr.=' (';
318: for ($i=0;$i<length($restr);$i++) {
319: $trestr.=
320: Apache::lonnet::plaintext(substr($restr,$i,1));
321: if ($i<length($restr)-1) { $trestr.=', '; }
322: }
323: $trestr.=')';
324: }
325: $r->print('<li>'.Apache::lonnet::plaintext($prv).$trestr.
326: '</li>');
327: }
328: } sort split(/:/,$ENV{$envkey});
329: $r->print('</ul>');
330: }
331: }
332: }
333:
334: $r->print("</body></html>\n");
335: return OK;
336: }
337:
338: 1;
339: __END__
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