1: # The LearningOnline Network
2: # Create a course
3: #
4: # $Id: loncreatecourse.pm,v 1.39 2003/11/12 21:37:07 albertel Exp $
5: #
6: # Copyright Michigan State University Board of Trustees
7: #
8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
9: #
10: # LON-CAPA is free software; you can redistribute it and/or modify
11: # it under the terms of the GNU General Public License as published by
12: # the Free Software Foundation; either version 2 of the License, or
13: # (at your option) any later version.
14: #
15: # LON-CAPA is distributed in the hope that it will be useful,
16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18: # GNU General Public License for more details.
19: #
20: # You should have received a copy of the GNU General Public License
21: # along with LON-CAPA; if not, write to the Free Software
22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23: #
24: # /home/httpd/html/adm/gpl.txt
25: #
26: # http://www.lon-capa.org/
27: #
28: # (My Desk
29: #
30: # (Internal Server Error Handler
31: #
32: # (Login Screen
33: # 5/21/99,5/22,5/25,5/26,5/31,6/2,6/10,7/12,7/14,
34: # 1/14/00,5/29,5/30,6/1,6/29,7/1,11/9 Gerd Kortemeyer)
35: #
36: # 3/1/1 Gerd Kortemeyer)
37: #
38: # 3/1 Gerd Kortemeyer)
39: #
40: # 2/14,2/16,2/17,7/6 Gerd Kortemeyer
41: #
42: package Apache::loncreatecourse;
43:
44: use strict;
45: use Apache::Constants qw(:common :http);
46: use Apache::lonnet;
47: use Apache::loncommon;
48: use Apache::lonratedt;
49: use Apache::londocs;
50: use Apache::lonlocal;
51:
52: # ================================================ Get course directory listing
53:
54: sub crsdirlist {
55: my ($courseid,$which)=@_;
56: unless ($which) { $which=''; }
57: my %crsdata=&Apache::lonnet::coursedescription($courseid);
58: my @listing=&Apache::lonnet::dirlist
59: ($which,$crsdata{'domain'},$crsdata{'num'},
60: &Apache::loncommon::propath($crsdata{'domain'},$crsdata{'num'}));
61: my @output=();
62: foreach (@listing) {
63: unless ($_=~/^\./) {
64: push (@output,(split(/\&/,$_))[0]);
65: }
66: }
67: return @output;
68: }
69:
70: # ============================================================= Read a userfile
71:
72: sub readfile {
73: my ($courseid,$which)=@_;
74: my %crsdata=&Apache::lonnet::coursedescription($courseid);
75: return &Apache::lonnet::getfile('/uploaded/'.$crsdata{'domain'}.'/'.
76: $crsdata{'num'}.'/'.$which);
77: }
78:
79: # ============================================================ Write a userfile
80:
81: sub writefile {
82: (my $courseid, my $which,$ENV{'form.output'})=@_;
83: my %crsdata=&Apache::lonnet::coursedescription($courseid);
84: return &Apache::lonnet::finishuserfileupload(
85: $crsdata{'num'},$crsdata{'domain'},
86: $crsdata{'home'},
87: 'output',$which);
88: }
89:
90: # ===================================================================== Rewrite
91:
92: sub rewritefile {
93: my ($contents,%rewritehash)=@_;
94: foreach (keys %rewritehash) {
95: my $pattern=$_;
96: $pattern=~s/(\W)/\\$1/gs;
97: my $new=$rewritehash{$_};
98: $contents=~s/$pattern/$new/gs;
99: }
100: return $contents;
101: }
102:
103: # ============================================================= Copy a userfile
104:
105: sub copyfile {
106: my ($origcrsid,$newcrsid,$which)=@_;
107: unless ($which=~/\.sequence$/) {
108: return &writefile($newcrsid,$which,
109: &readfile($origcrsid,$which));
110: } else {
111: my %origcrsdata=&Apache::lonnet::coursedescription($origcrsid);
112: my %newcrsdata= &Apache::lonnet::coursedescription($newcrsid);
113: return &writefile($newcrsid,$which,
114: &rewritefile(
115: &readfile($origcrsid,$which),
116: (
117: '/uploaded/'.$origcrsdata{'domain'}.'/'.$origcrsdata{'num'}.'/'
118: => '/uploaded/'. $newcrsdata{'domain'}.'/'. $newcrsdata{'num'}.'/'
119: )));
120: }
121: }
122:
123: # =============================================================== Copy a dbfile
124:
125: sub copydb {
126: my ($origcrsid,$newcrsid,$which)=@_;
127: $which=~s/\.db$//;
128: my %origcrsdata=&Apache::lonnet::coursedescription($origcrsid);
129: my %newcrsdata= &Apache::lonnet::coursedescription($newcrsid);
130: my %data=&Apache::lonnet::dump
131: ($which,$origcrsdata{'domain'},$origcrsdata{'num'});
132: return &Apache::lonnet::put
133: ($which,\%data,$newcrsdata{'domain'},$newcrsdata{'num'});
134: }
135:
136: # ========================================================== Copy resourcesdata
137:
138: sub copyresourcedb {
139: my ($origcrsid,$newcrsid)=@_;
140: my %origcrsdata=&Apache::lonnet::coursedescription($origcrsid);
141: my %newcrsdata= &Apache::lonnet::coursedescription($newcrsid);
142: my %data=&Apache::lonnet::dump
143: ('resourcedata',$origcrsdata{'domain'},$origcrsdata{'num'});
144: $origcrsid=~s/^\///;
145: $origcrsid=~s/\//\_/;
146: $newcrsid=~s/^\///;
147: $newcrsid=~s/\//\_/;
148: my %newdata=();
149: undef %newdata;
150: my $startdate=$data{$origcrsid.'.0.opendate'};
151: my $today=time;
152: my $delta=0;
153: if ($startdate) {
154: my $oneday=60*60*24;
155: $delta=$today-$startdate;
156: $delta=int($delta/$oneday)*$oneday;
157: }
158: # ugly retro fix for broken version of types
159: foreach (keys %data) {
160: if ($_=~/\wtype$/) {
161: my $newkey=$_;
162: $newkey=~s/type$/\.type/;
163: $data{$newkey}=$data{$_};
164: delete $data{$_};
165: }
166: }
167: # adjust symbs
168: my $pattern='uploaded/'.$origcrsdata{'domain'}.'/'.$origcrsdata{'num'}.'/';
169: $pattern=~s/(\W)/\\$1/gs;
170: my $new= 'uploaded/'. $newcrsdata{'domain'}.'/'. $newcrsdata{'num'}.'/';
171: foreach (keys %data) {
172: if ($_=~/$pattern/) {
173: my $newkey=$_;
174: $newkey=~s/$pattern/$new/;
175: $data{$newkey}=$data{$_};
176: delete $data{$_};
177: }
178: }
179: # adjust dates
180: foreach (keys %data) {
181: my $thiskey=$_;
182: $thiskey=~s/^$origcrsid/$newcrsid/;
183: $newdata{$thiskey}=$data{$_};
184: if ($data{$_.'.type'}=~/^date/) {
185: $newdata{$thiskey}=$newdata{$thiskey}+$delta;
186: }
187: }
188: return &Apache::lonnet::put
189: ('resourcedata',\%newdata,$newcrsdata{'domain'},$newcrsdata{'num'});
190: }
191:
192: # ========================================================== Copy all userfiles
193:
194: sub copyuserfiles {
195: my ($origcrsid,$newcrsid)=@_;
196: foreach (&crsdirlist($origcrsid,'userfiles')) {
197: ©file($origcrsid,$newcrsid,$_);
198: }
199: }
200: # ========================================================== Copy all userfiles
201:
202: sub copydbfiles {
203: my ($origcrsid,$newcrsid)=@_;
204: foreach (&crsdirlist($origcrsid)) {
205: if ($_=~/\.db$/) {
206: unless
207: ($_=~/^(nohist\_|discussiontimes|classlist|versionupdate|resourcedata)/) {
208: ©db($origcrsid,$newcrsid,$_);
209: }
210: }
211: }
212: }
213:
214: # ======================================================= Copy all course files
215:
216: sub copycoursefiles {
217: my ($origcrsid,$newcrsid)=@_;
218: ©userfiles($origcrsid,$newcrsid);
219: ©dbfiles($origcrsid,$newcrsid);
220: ©resourcedb($origcrsid,$newcrsid);
221: }
222:
223: # ===================================================== Phase one: fill-in form
224:
225: sub print_course_creation_page {
226: my $r=shift;
227: my $defdom=$ENV{'request.role.domain'};
228: my %host_servers = &Apache::loncommon::get_library_servers($defdom);
229: my $course_home = '<select name="course_home" size="1">'."\n";
230: foreach my $server (sort(keys(%host_servers))) {
231: $course_home .= qq{<option value="$server"};
232: if ($server eq $Apache::lonnet::perlvar{'lonHostID'}) {
233: $course_home .= " selected ";
234: }
235: $course_home .= qq{>$server $host_servers{$server}</option>};
236: }
237: $course_home .= "\n</select>\n";
238: my $domform = &Apache::loncommon::select_dom_form($defdom,'ccdomain');
239: my $bodytag=&Apache::loncommon::bodytag('Create a New Course');
240: my $helplink=&Apache::loncommon::help_open_topic('Create_Course','Help on Creating Courses');
241: my $cloneform=&Apache::loncommon::select_dom_form
242: ($ENV{'request.role.domain'},'clonedomain').
243: &Apache::loncommon::selectcourse_link
244: ('ccrs','clonecourse','clonedomain');
245: my $coursebrowserjs=&Apache::loncommon::coursebrowser_javascript();
246: $r->print(<<ENDDOCUMENT);
247: <html>
248: <script language="JavaScript" type="text/javascript">
249: var editbrowser = null;
250: function openbrowser(formname,elementname) {
251: var url = '/res/?';
252: if (editbrowser == null) {
253: url += 'launch=1&';
254: }
255: url += 'catalogmode=interactive&';
256: url += 'mode=edit&';
257: url += 'form=' + formname + '&';
258: url += 'element=' + elementname + '&';
259: url += 'only=sequence' + '';
260: var title = 'Browser';
261: var options = 'scrollbars=1,resizable=1,menubar=0';
262: options += ',width=700,height=600';
263: editbrowser = open(url,title,options,'1');
264: editbrowser.focus();
265: }
266: </script>
267: $coursebrowserjs
268: <head>
269: <title>The LearningOnline Network with CAPA</title>
270: </head>
271: $bodytag
272: $helplink
273: <form action="/adm/createcourse" method="post" name="ccrs">
274: <h2>Course Information</h2>
275: <p>
276: <b>Course Title:</b>
277: <input type="text" size="50" name="title">
278: </p><p>
279: <b>Course Home Server:</b>$course_home
280: </p><p>
281: <b>Course ID/Number (optional)</b>
282: <input type="text" size="30" name="crsid">
283: </p>
284: <h2>Course Content</h2>
285: <table border="2">
286: <tr><th>Completely new course</th><th>Clone an existing course</th></tr>
287: <tr><td>
288: <p>
289: <b>Map:</b>
290: <input type="text" size="50" name="topmap">
291: <a href="javascript:openbrowser('ccrs','topmap')">Select Map</a>
292: </p><p>
293: <b>Do NOT generate as standard course</b><br />
294: (only check if you know what you are doing):
295: <input type="checkbox" name="nonstandard">
296: </p>
297: <p>
298: <b>First Resource</b><br />(standard courses only):
299: <input type="radio" name="firstres" value="blank">Blank
300:
301: <input type="radio" name="firstres" value="syl" checked>Syllabus
302:
303: <input type="radio" name="firstres" value="nav">Navigate
304: </p>
305: </td><td>
306: Course ID: <input input type="text" size="25" name="clonecourse" value="" />
307: <br />
308: Domain:
309: $cloneform<br /> <br />
310: Additional settings, if specified below, will override cloned settings.
311: </td></tr>
312: </table>
313: <h2>Assessment Parameters</h2>
314: <p>
315: <b>Open all assessments: </b>
316: <input type="checkbox" name="openall" checked>
317: </p>
318: <h2>Messaging</h2>
319: <p>
320: <b>Set course policy feedback to Course Coordinator: </b>
321: <input type="checkbox" name="setpolicy" checked>
322: </p><p>
323: <b>Set content feedback to Course Coordinator: </b>
324: <input type="checkbox" name="setcontent" checked>
325: </p>
326: <h2>Communication</h2>
327: <p>
328: <b>Disable student resource discussion: </b>
329: <input type="checkbox" name="disresdis" /> <br />
330: <b>Disable student use of chatrooms: </b>
331: <input type="checkbox" name="disablechat" />
332: </p>
333: <h2>Access Control</h2>
334: <p>
335: <b>Students need access key to enter course: </b>
336: <input type="checkbox" name="setkeys" />
337: </p>
338: <h2>Course Coordinator</h2>
339: <p>
340: <b>Username:</b> <input type="text" size="15" name="ccuname" />
341: </p><p>
342: <b>Domain:</b> $domform
343: </p><p>
344: <b>Immediately expire own role as Course Coordinator:</b>
345: <input type="checkbox" name="expireown" checked>
346: </p><p>
347: <input type="hidden" name="phase" value="two" />
348: <input type="submit" value="Open Course">
349: </p>
350: </form>
351: </body>
352: </html>
353: ENDDOCUMENT
354: }
355:
356: # ====================================================== Phase two: make course
357:
358: sub create_course {
359: my $r=shift;
360: my $topurl='/res/'.&Apache::lonnet::declutter($ENV{'form.topmap'});
361: my $ccuname=$ENV{'form.ccuname'};
362: my $ccdomain=$ENV{'form.ccdomain'};
363: $ccuname=~s/\W//g;
364: $ccdomain=~s/\W//g;
365: my $cdescr=$ENV{'form.title'};
366: my $curl=$ENV{'form.topmap'};
367: my $bodytag=&Apache::loncommon::bodytag('Create a New Course');
368: $r->print(<<ENDENHEAD);
369: <html>
370: <head>
371: <title>The LearningOnline Network with CAPA</title>
372: </head>
373: $bodytag
374: ENDENHEAD
375: #
376: # Verify data
377: #
378: # Check the veracity of the course coordinator
379: if (&Apache::lonnet::homeserver($ccuname,$ccdomain) eq 'no_host') {
380: $r->print('No such user '.$ccuname.' at '.$ccdomain.'</body></html>');
381: return;
382: }
383: # Check the proposed home server for the course
384: my %host_servers = &Apache::loncommon::get_library_servers
385: ($ENV{'request.role.domain'});
386: if (! exists($host_servers{$ENV{'form.course_home'}})) {
387: $r->print('Invalid home server for course: '.
388: $ENV{'form.course_home'}.'</body></html>');
389: return;
390: }
391: #
392: # Open course
393: #
394: my %cenv=();
395: my $courseid=&Apache::lonnet::createcourse($ENV{'request.role.domain'},
396: $cdescr,$curl,
397: $ENV{'form.course_home'},
398: $ENV{'form.nonstandard'});
399:
400: # Note: The testing routines depend on this being output; see
401: # Utils::Course. This needs to at least be output as a comment
402: # if anyone ever decides to not show this, and Utils::Course::new
403: # will need to be suitably modified.
404: $r->print('New LON-CAPA Course ID: '.$courseid.'<br>');
405: #
406: # Check if created correctly
407: #
408: my ($crsudom,$crsunum)=($courseid=~/^\/(\w+)\/(\w+)$/);
409: my $crsuhome=&Apache::lonnet::homeserver($crsunum,$crsudom);
410: $r->print('Created on: '.$crsuhome.'<br>');
411: #
412: # Are we cloning?
413: #
414: my $cloneid='';
415: if (($ENV{'form.clonecourse'}) && ($ENV{'form.clonedomain'})) {
416: $cloneid='/'.$ENV{'form.clonedomain'}.'/'.$ENV{'form.clonecourse'};
417: my ($clonecrsudom,$clonecrsunum)=($cloneid=~/^\/(\w+)\/(\w+)$/);
418: my $clonehome=&Apache::lonnet::homeserver($clonecrsunum,$clonecrsudom);
419: if ($clonehome eq 'no_host') {
420: $r->print(
421: '<br /><font color="red">Attempting to clone non-existing course '.$cloneid.'</font>');
422: } else {
423: $r->print(
424: '<br /><font color="green">Cloning course from '.$clonehome.'</font>');
425: my %oldcenv=&Apache::lonnet::dump('environment',$crsudom,$crsunum);
426: # Copy all files
427: ©coursefiles($cloneid,$courseid);
428: # Restore URL
429: $cenv{'url'}=$oldcenv{'url'};
430: # Restore title
431: $cenv{'description'}=$oldcenv{'description'};
432: # Mark as cloned
433: $cenv{'clonedfrom'}=$cloneid;
434: }
435: }
436: #
437: # Set environment (will override cloned, if existing)
438: #
439: if ($ENV{'form.crsid'}) {
440: $cenv{'courseid'}=$ENV{'form.crsid'};
441: }
442: if (($ccdomain) && ($ccuname)) {
443: if ($ENV{'form.setpolicy'}) {
444: $cenv{'policy.email'}=$ccuname.':'.$ccdomain;
445: }
446: if ($ENV{'form.setcontent'}) {
447: $cenv{'question.email'}=$ccuname.':'.$ccdomain;
448: }
449: }
450: if ($ENV{'form.setkeys'}) {
451: $cenv{'keyaccess'}='yes';
452: }
453: if ($ENV{'form.disresdis'}) {
454: $cenv{'pch.roles.denied'}='st';
455: }
456: if ($ENV{'form.disablechat'}) {
457: $cenv{'plc.roles.denied'}='st';
458: }
459:
460: # Record we've not yet viewed the Course Initialization Helper for this
461: # course
462: $cenv{'course.helper.not.run'} = 1;
463: #
464: # Use new Randomseed
465: #
466: $cenv{'rndseed'}=&Apache::lonnet::latest_rnd_algorithm_id();;
467: #
468: # By default, use standard grading
469: $cenv{'grading'} = 'standard';
470:
471: $r->print('<br />Setting environment: '.
472: &Apache::lonnet::put('environment',\%cenv,$crsudom,$crsunum).'<br>');
473: #
474: # Open all assignments
475: #
476: if ($ENV{'form.openall'}) {
477: my $storeunder=$crsudom.'_'.$crsunum.'.0.opendate';
478: my %storecontent = ($storeunder => time,
479: $storeunder.'.type' => 'date_start');
480:
481: $r->print('Opening all assignments: '.&Apache::lonnet::cput
482: ('resourcedata',\%storecontent,$crsudom,$crsunum).'<br>');
483: }
484: #
485: # Set first page
486: #
487: unless (($ENV{'form.nonstandard'}) || ($ENV{'form.firstres'} eq 'blank')) {
488: $r->print('Setting first resource: ');
489: my ($errtext,$fatal)=
490: &Apache::londocs::mapread($crsunum,$crsudom,'default.sequence');
491: $r->print(($fatal?$errtext:'read ok').' - ');
492: my $title; my $url;
493: if ($ENV{'form.firstres'} eq 'syl') {
494: $title='Syllabus';
495: $url='/public/'.$crsudom.'/'.$crsunum.'/syllabus';
496: } else {
497: $title='Navigate Contents';
498: $url='/adm/navmaps';
499: }
500: $Apache::lonratedt::resources[1]=$title.':'.$url.':false:start:res';
501: ($errtext,$fatal)=
502: &Apache::londocs::storemap($crsunum,$crsudom,'default.sequence');
503: $r->print(($fatal?$errtext:'write ok').'<br>');
504: }
505: #
506: # Make current user course adminstrator
507: #
508: my $end=undef;
509: my $addition='';
510: if ($ENV{'form.expireown'}) { $end=time+5; $addition='expired'; }
511: $r->print('Assigning '.$addition.' role of course coordinator to self: '.
512: &Apache::lonnet::assignrole(
513: $ENV{'user.domain'},$ENV{'user.name'},$courseid,'cc',$end).'<br>');
514: #
515: # Make additional user course administrator
516: #
517: if (($ccdomain) && ($ccuname)) {
518: $r->print('Assigning role of course coordinator to '.
519: $ccuname.' at '.$ccdomain.': '.
520: &Apache::lonnet::assignrole($ccdomain,$ccuname,$courseid,'cc').'<p>');
521: }
522: if ($ENV{'form.setkeys'}) {
523: $r->print(
524: '<p><a href="/adm/managekeys?cid='.$crsudom.'_'.$crsunum.'">Manage Access Keys</a></p>');
525: }
526: $r->print('<p>Roles will be active at next login.</p></body></html>');
527: }
528:
529: # ===================================================================== Handler
530: sub handler {
531: my $r = shift;
532:
533: if ($r->header_only) {
534: &Apache::loncommon::content_type($r,'text/html');
535: $r->send_http_header;
536: return OK;
537: }
538:
539: if (&Apache::lonnet::allowed('ccc',$ENV{'request.role.domain'})) {
540: &Apache::loncommon::content_type($r,'text/html');
541: $r->send_http_header;
542:
543: if ($ENV{'form.phase'} eq 'two') {
544: &create_course($r);
545: } else {
546: &print_course_creation_page($r);
547: }
548: } else {
549: $ENV{'user.error.msg'}=
550: "/adm/createcourse:ccc:0:0:Cannot create courses";
551: return HTTP_NOT_ACCEPTABLE;
552: }
553: return OK;
554: }
555:
556: 1;
557: __END__
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