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: # 03/02,05/03,05/25,05/30,06/01,07/06 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: use Apache::lonmenu;
22:
23: sub handler {
24:
25: my $r = shift;
26:
27: my $now=time;
28: my $then=$ENV{'user.login.time'};
29: my $envkey;
30:
31:
32: # ================================================================== Roles Init
33:
34: if ($ENV{'form.selectrole'}) {
35: &Apache::lonnet::appenv("request.course.id" => '',
36: "request.course.fn" => '',
37: "request.course.uri" => '',
38: "request.course.sec" => '',
39: "request.role" => 'cm');
40: foreach $envkey (keys %ENV) {
41: if ($envkey=~/^user\.role\./) {
42: my ($dum1,$dum2,$role,@pwhere)=split(/\./,$envkey);
43: my $where=join('.',@pwhere);
44: my $trolecode=$role.'.'.$where;
45: if ($ENV{'form.'.$trolecode}) {
46: my ($tstart,$tend)=split(/\./,$ENV{$envkey});
47: my $tstatus='is';
48: if ($tstart) {
49: if ($tstart>$then) {
50: $tstatus='future';
51: }
52: }
53: if ($tend) {
54: if ($tend<$then) { $tstatus='expired'; }
55: if ($tend<$now) { $tstatus='will_not'; }
56: }
57: if ($tstatus eq 'is') {
58: $where=~s/^\///;
59: my ($cdom,$cnum,$csec)=split(/\//,$where);
60: &Apache::lonnet::appenv('request.role' => $trolecode,
61: 'request.course.sec' => $csec);
62: my $msg='Entering course ...';
63: if (($cnum) && ($role ne 'ca')) {
64: my ($furl,$ferr)=
65: &Apache::lonuserstate::readmap($cdom.'/'.$cnum);
66: if (($ENV{'form.orgurl'}) &&
67: ($ENV{'form.orgurl'}!~/^\/adm\/flip/)) {
68: $r->internal_redirect($ENV{'form.orgurl'});
69: return OK;
70: } else {
71: unless ($ENV{'request.course.id'}) {
72: &Apache::lonnet::appenv(
73: "request.course.id" => $cdom.'_'.$cnum);
74: $furl='/adm/notfound.html';
75: $msg=
76: '<h1><font color=red>Could not initialize top-level map.</font></h1>';
77: }
78: $r->content_type('text/html');
79: $r->send_http_header;
80: my $swinfo=&Apache::lonmenu::rawconfig;
81: print (<<ENDREDIR);
82: <head><title>Entering Course</title>
83: <meta HTTP-EQUIV="Refresh" CONTENT="1; url=$furl">
84: </head>
85: <html>
86: <body bgcolor="#FFFFFF">
87: <script>
88: $swinfo
89: </script>
90: $msg
91: </body>
92: </html>
93: ENDREDIR
94: return OK;
95: }
96: }
97: }
98: }
99: }
100: }
101: }
102:
103:
104: # =============================================================== No Roles Init
105:
106: $r->content_type('text/html');
107: $r->send_http_header;
108: return OK if $r->header_only;
109:
110: my $swinfo=&Apache::lonmenu::rawconfig;
111:
112: $r->print(<<ENDHEADER);
113: <html>
114: <head>
115: <title>LON-CAPA User Roles</title>
116: </head><body bgcolor="#FFFFFF">
117: <script>
118: $swinfo
119: window.focus();
120: </script>
121: ENDHEADER
122:
123: # ------------------------------------------ Get Error Message from Environment
124:
125: my ($fn,$priv,$nochoose,$error,$msg)=split(/:/,$ENV{'user.error.msg'});
126: if ($ENV{'user.error.msg'}) {
127: $r->log_reason(
128: "$msg for $ENV{'user.name'} domain $ENV{'user.domain'} access $priv",$fn);
129: }
130:
131: # ---------------------------------------------------------------- Who is this?
132:
133: my $advanced=0;
134: foreach $envkey (keys %ENV) {
135: if ($envkey=~/^user\.role\./) {
136: my ($dum1,$dum2,$role,@pwhere)=split(/\./,$envkey);
137: if ($role ne 'st') { $advanced=1; }
138: }
139: }
140:
141: # -------------------------------------------------------- Generate Page Output
142: # --------------------------------------------------------------- Error Header?
143: if ($error) {
144: $r->print("<h1>LON-CAPA Access Control</h1>");
145: $r->print("<hr><pre>Access : ".
146: Apache::lonnet::plaintext($priv)."\n");
147: $r->print("Resource: $fn\n");
148: $r->print("Action : $msg\n</pre><hr>");
149: } else {
150: $r->print("<h1>LON-CAPA User Roles</h1>");
151: if ($ENV{'user.error.msg'}) {
152: $r->print(
153: '<h3><font color=red>You need to choose another user role or '.
154: 'enter a specific course for this function</font></h3>');
155: }
156: }
157: # -------------------------------------------------------- Choice or no choice?
158: if ($nochoose) {
159: if ($advanced) {
160: $r->print("<h2>Assigned User Roles</h2>\n");
161: } else {
162: $r->print("<h2>Sorry ...</h2>\nThis resource might be part of");
163: if ($ENV{'request.course.id'}) {
164: $r->print(' another');
165: } else {
166: $r->print(' a certain');
167: }
168: $r->print(' course.</body></html>');
169: return OK;
170: }
171: } else {
172: if ($advanced) {
173: $r->print("<h2>Select a User Role</h2>\n");
174: } else {
175: $r->print("<h2>Enter a Course</h2>\n");
176: }
177: if (($ENV{'REDIRECT_QUERY_STRING'}) && ($fn)) {
178: $fn.='?'.$ENV{'REDIRECT_QUERY_STRING'};
179: }
180: $r->print('<form method=post action="'.(($fn)?$fn:$r->uri).'">');
181: $r->print('<input type=hidden name=orgurl value="'.$fn.'">');
182: $r->print('<input type=hidden name=selectrole value=1>');
183: }
184: $r->print('<br>Show all roles: <input type=checkbox name=showall');
185: if ($ENV{'form.showall'}) { $r->print(' checked'); }
186: $r->print('><input type=submit value="Display"><br>');
187: # ----------------------------------------------------------------------- Table
188: $r->print('<table><tr>');
189: unless ($nochoose) { $r->print('<th> </th>'); }
190: $r->print('<th>User Role</th><th colspan=2>Extent</th>'.
191: '<th>Start</th><th>End</th><th>Remark</th></tr>'."\n");
192:
193: foreach $envkey (sort keys %ENV) {
194: if ($envkey=~/^user\.role\./) {
195: my ($dum1,$dum2,$role,@pwhere)=split(/\./,$envkey);
196: my $where=join('.',@pwhere);
197: my $trolecode=$role.'.'.$where;
198: my ($tstart,$tend)=split(/\./,$ENV{$envkey});
199: my $tremark='';
200: my $tstatus='is';
201: my $tpstart=' ';
202: my $tpend=' ';
203: if ($tstart) {
204: if ($tstart>$then) {
205: $tstatus='future';
206: if ($tstart<$now) { $tstatus='will'; }
207: }
208: $tpstart=localtime($tstart);
209: }
210: if ($tend) {
211: if ($tend<$then) {
212: $tstatus='expired';
213: } elsif ($tend<$now) {
214: $tstatus='will_not';
215: }
216: $tpend=localtime($tend);
217: }
218: if ($ENV{'request.role'} eq $trolecode) {
219: $tstatus='selected';
220: }
221: my $tbg;
222: if (($tstatus eq 'is') || ($tstatus eq 'selected') ||
223: ($ENV{'form.showall'})) {
224: if ($tstatus eq 'is') {
225: $tbg='#77FF77';
226: } elsif ($tstatus eq 'future') {
227: $tbg='#FFFF77';
228: } elsif ($tstatus eq 'will') {
229: $tbg='#FFAA77';
230: $tremark.='Active at next login. ';
231: } elsif ($tstatus eq 'expired') {
232: $tbg='#FF7777';
233: } elsif ($tstatus eq 'will_not') {
234: $tbg='#AAFF77';
235: $tremark.='Expired after logout. ';
236: } elsif ($tstatus eq 'selected') {
237: $tbg='#11CC55';
238: $tremark.='Currently selected. ';
239: }
240: my $trole;
241: if ($role =~ /^cr\//) {
242: my ($rdummy,$rdomain,$rauthor,$rrole)=split(/\//,$role);
243: $tremark.='<br>Defined by '.$rauthor.' at '.$rdomain.'.';
244: $trole=$rrole;
245: } else {
246: $trole=Apache::lonnet::plaintext($role);
247: }
248: my $ttype;
249: my $twhere;
250: my ($tdom,$trest,$tsection)=
251: split(/\//,Apache::lonnet::declutter($where));
252: if ($trest) {
253: if ($role eq 'ca') {
254: $ttype='Construction Space';
255: $twhere='User: '.$trest.'<br>Domain: '.$tdom;
256: $ENV{'course.'.$tdom.'_'.$trest.'.description'}='ca';
257: } else {
258: $ttype='Course';
259: if ($tsection) {
260: $ttype.='<br>Section/Group: '.$tsection;
261: }
262: my $tcourseid=$tdom.'_'.$trest;
263: if ($ENV{'course.'.$tcourseid.'.description'}) {
264: $twhere=$ENV{'course.'.$tcourseid.'.description'};
265: } else {
266: my %newhash=Apache::lonnet::coursedescription($tcourseid);
267: if (%newhash) {
268: $twhere=$newhash{'description'};
269: } else {
270: $twhere='Currently not available';
271: $ENV{'course.'.$tcourseid.'.description'}=$twhere;
272: }
273: }
274: }
275: } elsif ($tdom) {
276: $ttype='Domain';
277: $twhere=$tdom;
278: } else {
279: $ttype='System';
280: $twhere='system wide';
281: }
282:
283: $r->print('<tr bgcolor='.$tbg.'>');
284: unless ($nochoose) {
285: if ($tstatus eq 'is') {
286: $r->print('<td><input type=submit value=Select name="'.
287: $trolecode.'"></td>');
288: } else {
289: $r->print('<td> </td>');
290: }
291: }
292: $r->print('<td>'.$trole.'</td><td>'.
293: $ttype.'</td><td>'.$twhere.'</td><td>'.$tpstart.
294: '</td><td>'.$tpend.
295: '</td><td>'.$tremark.' </td></tr>'."\n");
296: }
297: }
298: }
299: my $tremark='';
300: if ($ENV{'request.role'} eq 'cm') {
301: $r->print('<tr bgcolor="#11CC55">');
302: $tremark='Currently selected.';
303: } else {
304: $r->print('<tr bgcolor="#77FF77">');
305: }
306: unless ($nochoose) {
307: if ($ENV{'request.role'} ne 'cm') {
308: $r->print('<td><input type=submit value=Select name="cm"></td>');
309: } else {
310: $r->print('<td> </td>');
311: }
312: }
313: $r->print('<td colspan=5>No role specified'.
314: '</td><td>'.$tremark.' </td></tr>'."\n");
315:
316: $r->print('</table>');
317: unless ($nochoose) {
318: $r->print("</form>\n");
319: }
320: # ------------------------------------------------------------ Privileges Info
321: if ($advanced) {
322: $r->print('<hr><h2>Current Privileges</h2>');
323:
324: foreach $envkey (sort keys %ENV) {
325: if ($envkey=~/^user\.priv\.$ENV{'request.role'}\./) {
326: my $where=$envkey;
327: $where=~s/^user\.priv\.$ENV{'request.role'}\.//;
328: my $ttype;
329: my $twhere;
330: my ($tdom,$trest,$tsec)=
331: split(/\//,Apache::lonnet::declutter($where));
332: if ($trest) {
333: if ($ENV{'course.'.$tdom.'_'.$trest.'.description'} eq 'ca') {
334: $ttype='Construction Space';
335: $twhere='User: '.$trest.', Domain: '.$tdom;
336: } else {
337: $ttype='Course';
338: $twhere=$ENV{'course.'.$tdom.'_'.$trest.'.description'};
339: if ($tsec) {
340: $twhere.=' (Section/Group: '.$tsec.')';
341: }
342: }
343: } elsif ($tdom) {
344: $ttype='Domain';
345: $twhere=$tdom;
346: } else {
347: $ttype='System';
348: $twhere='/';
349: }
350: $r->print("\n<h3>".$ttype.': '.$twhere.'</h3><ul>');
351: map {
352: if ($_) {
353: my ($prv,$restr)=split(/\&/,$_);
354: my $trestr='';
355: if ($restr ne 'F') {
356: my $i;
357: $trestr.=' (';
358: for ($i=0;$i<length($restr);$i++) {
359: $trestr.=
360: Apache::lonnet::plaintext(substr($restr,$i,1));
361: if ($i<length($restr)-1) { $trestr.=', '; }
362: }
363: $trestr.=')';
364: }
365: $r->print('<li>'.Apache::lonnet::plaintext($prv).$trestr.
366: '</li>');
367: }
368: } sort split(/:/,$ENV{$envkey});
369: $r->print('</ul>');
370: }
371: }
372: }
373:
374: $r->print("</body></html>\n");
375: return OK;
376: }
377:
378: 1;
379: __END__
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