1: # The LearningOnline Network with CAPA
2: # Routines for configuring blocking of access to collaborative functions,
3: # and specific resources during an exam
4: #
5: # $Id: lonblockingmenu.pm,v 1.14.2.3.2.1 2019/02/06 15:40:22 raeburn Exp $
6: #
7: # Copyright Michigan State University Board of Trustees
8: #
9: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
10: #
11: # LON-CAPA is free software; you can redistribute it and/or modify
12: # it under the terms of the GNU General Public License as published by
13: # the Free Software Foundation; either version 2 of the License, or
14: # (at your option) any later version.
15: #
16: # LON-CAPA is distributed in the hope that it will be useful,
17: # but WITHOUT ANY WARRANTY; without even the implied warranty of
18: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19: # GNU General Public License for more details.
20: #
21: # You should have received a copy of the GNU General Public License
22: # along with LON-CAPA; if not, write to the Free Software
23: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
24: #
25: # /home/httpd/html/adm/gpl.txt
26: #
27: # http://www.lon-capa.org/
28: #
29: ##############################################################
30: ##############################################################
31:
32: =pod
33:
34: =head1 NAME
35:
36: lonblockingmenu - Handler to set/modify exam blocks in a course.
37:
38: =head1 SYNOPSIS
39:
40: lonblockingmenu provides an interface for setting exam blocks in a course.
41:
42: =head1 DESCRIPTION
43:
44: This module is used to configure blocking of access to collaborative tools
45: and/or resources during an exam.
46:
47: =head1 OVERVIEW
48:
49: To support high-stakes testing, LON-CAPA provides Coordinators with the
50: ability to disable communication and collaborative features within the
51: system for the duration of an exam.
52:
53: Features which can be disabled include:
54: (a) those which a student could use to communicate with another student.
55: Messaging, discussion, chat, blogs, and some functionality in groups fall
56: into this category.
57: (b) those which a student could use to access materials prepared by the
58: student in advance of an exam, (e.g., for use during an online exam, to
59: gain an unfair advantage). Blogs and portfolio fall into this category.
60: (c) those which a student could use to display or save content within
61: the course itself (outside the exam folder). Printouts and resources
62: fall into this category.
63:
64: For communication blocking to be truly effective in preventing unwanted
65: communication, or access to online materials, online testing needs to
66: take place in a lab setting where use of tools outside LON-CAPA, and use
67: of web sites beyond LON-CAPA are unavailable.
68:
69: Access to specified folder(s) and/or resources in the course contents
70: can be restricted for the duration of an exam.
71:
72: Exam blocks are of two types:
73: (a) Blocks with a defined start and end date.
74: (b) Blocks associated with a timed interval set for a specific folder,
75: or resource.
76:
77: When a student attempts to use a collaboration or communication feature
78: which is currently blocked, information will be available about the
79: duration of the block, and the identity of the Course Coordinator who
80: set the block.
81:
82: Although LON-CAPA communication can be blocked during an exam, course
83: personnel with the 'evb' (evade blocking) privilege will continue to
84: receive LON-CAPA messages sent from students in a course with an active
85: block on messaging. Students will not be able to view messages sent by
86: other students in the same course for the duration of the blocking event.
87:
88: Because students may be enrolled in more than one LON-CAPA course at a time
89: it is important to use reasonable time windows for blocking events, or, in
90: the case of blocks triggered by clicking a button to start a timed quiz,
91: quiz durations that are of limited duration. This is especially important
92: when blocking prtfolio access, as other courses may require students to use
93: the portfolio as a mechanism for submitting assignments.
94:
95: Information about blocks in a course will be cached for 10 minutes, so,
96: as with parameters set for resources, it can take up to 10 minutes for
97: new blocks, or changes to existing blocks, to propagate to other servers.
98:
99: Changes to existing blocks on the server hosting your current session
100: are available immediately, as cached data on blocks is devalidated
101: automatically on the current server whenever a change is made to a
102: block (including deletion), or when a new block is added.
103:
104: =head1 INTERNAL SUBROUTINES
105:
106: =over
107:
108: =item &get_permission()
109:
110: Returns information about permission user has to set/modify exam
111: blocking events.
112:
113: Inputs: None
114:
115: Outputs: 2
116: $readonly - true if modification of blocking events is prohibited.
117:
118: $allowed - true if blocking events information can be shown.
119:
120:
121: =item &get_timed_items()
122:
123: Provides perl data structure with information about timed interval
124: parameters set in a course.
125:
126: Inputs: 2 (optional)
127: $cdom - course's domain
128:
129: $cnum - course's ID
130:
131: Output: 1 Hash
132: nested hashes containing information about timed interval
133: parameters in course). Top level keys are type: course,
134: map, resource. Next inner keys are map or symb. Next
135: inner keys are scope (all, section, group, users).
136: Values are interval (in seconds).
137:
138: =item &blockstore()
139:
140: Stores changes to exam blocks in comm_block.db file for course.
141: Processes deletions, modifications and additions.
142:
143: Inputs: 4
144: $r = request object
145:
146: $crstype - Container type: Course or Community.
147:
148: $blockcount - Total number of blocking events in course.
149:
150: $currblockrecs - Ref to hash of current blocks in course.
151:
152: Outputs: 2
153: $changestotal - Total number of changes made.
154:
155: $output - Information about changes made.
156:
157:
158: =item &get_dates_from_form()
159:
160: Extract start and end dates from web form input for blocks with
161: defined start/end time.
162:
163: Inputs: 1 - $item - numeric ID of current block.
164:
165: Outputs: 2 - $startdate, $enddate (UNIX times for start and end times
166: for blocks with defined start/end
167:
168:
169: =item &get_blockdates()
170:
171: Retrieves contents of comm_block.db file for a course.
172:
173: Inputs: 1 - $records - reference to hash to contain blocks
174:
175: Outputs: 1 - $blockcount - number of blocks
176:
177: Side Effects: populates records hashref.
178:
179:
180: =item &get_block_choices()
181:
182: Extract information from web form about which communication/
183: collaboration features are to be blocked, for a particular event,
184: and also which content areas will have access blocked for the
185: duration of the block.
186:
187: Inputs: 3
188: - $item - numeric ID of current block
189:
190: - $map_ref - reference to hash mapping numeric IDs to map urls
191:
192: - $symb_ref - reference to hash mapping numeric IDs to symbs
193:
194: Outputs: 2
195: - $blocktypes - reference to hash of features to be blocked
196:
197: - $blockdocs - boolean - 0 if no blocking of content, 1 if blocking
198: of content access
199:
200:
201: =item &check_release_required()
202:
203: Update LON-CAPA version requirements for course if blocked items
204: (content) or blocking type (triggered by student starting timer)
205: require specific LON-CAPA version (i.e., 2.11).
206:
207: Inputs: 3 - $value - type of constraint (currently: 'docs', 'printout' or 'timer'),
208: $chomemajor - course's home server LON-CAPA major version number.
209: $chomeminor - course's home server LON-CAPA minor version number.
210:
211: Outputs: 2 - status ('ok' or 'fail') and LON-CAPA version needed.
212:
213: =over
214:
215: A status of 'fail' will be returned if the
216: LON-CAPA version installed on the course's
217: home server is older than the version
218: requirement for the blocking type.
219: For a trigger type event, the requested
220: blocking event will not be added if
221: the course's home server version is old to
222: support that type of block.
223:
224: =back
225:
226: Side Effects: &update_released_required() called in lonnet, if
227: course's home server version is requied version or
228: newer; will update version requirements for course to
229: a more recent version requirement than currently in
230: effect.
231:
232:
233: =item &display_blocker_status()
234:
235: Generates web form elements used to display, cancel, or modify
236: existing blocking events.
237:
238: Inputs: 8
239: - $r - Apache request object
240:
241: - $records - Reference to hash of current blocks
242:
243: - $ltext - Reference to hash of phrases (localized)
244:
245: - $intervals - Reference to hash of parameters for timed intervals
246:
247: - $navmap - navmaps object.
248:
249: - $errormsg - error message for display, if navmaps object
250: could not be instantiated
251:
252: - $blockcount - number of existing blocking events in course
253:
254: - $readonly - if true, modification not allowed.
255:
256:
257: Output: None
258:
259: Side Effects: prints web form elements (in a table) for current blocks.
260:
261: =item &convlim()
262:
263: Convert a time interval used for a timed quiz (in seconds) to
264: days, hours. minutes and seconds.
265:
266: Inputs: 1 - $timelimit - time interval in seconds
267:
268: Outputs: 1 - $output - time in format: DD days, HH hours, MM minutes, SS seconds
269:
270:
271: =item &display_addblocker_table()
272:
273: Generate web form elements used to define a new blocking event.
274:
275: Inputs: 6
276: - $r - Apache resource object
277:
278: - $parmcount - current ID for block (same as number of current blocks,
279: block IDs in web form have zero-based index)
280:
281: - $ltext - reference to hash of phrases (localized)
282:
283: - $intervals - Reference to hash of parameters for timed intervals
284:
285: - $navmap - navmaps object
286:
287: - $errormsg - error message for display, if navmaps object
288: could not be instantiated
289:
290: Outputs: None
291:
292: Side Effects: prints web form elements (in a table) for adding a new block.
293:
294:
295: =item &blocker_checkboxes()
296:
297: Generates web form elements in a table for checkboxes used to indicate
298: which types of communication/collaboration and/or content should be blocked.
299:
300: Inputs: 4
301: - $parmcount - numeric ID of current block
302:
303: - $blocks - reference to hash of functionalities to block
304:
305: - $jschg - text of javascript call to execute when checkbox clicked
306: use within a box via 'onclick="$jchg"'
307:
308: - $lookups - reference to hash to map urls or symbs to numeric IDs
309: used to populate hodden form elements containing list
310: of resources and folders with access blocking currently set.
311:
312: Output: 1 - HTML for table of checkboxes for current block
313:
314:
315: =item &create_interval_form()
316:
317: Creates web form elements used to select one of the defined timed interval
318: items in the course for use in an exam block of type: "Triggered by
319: Activating Timer".
320:
321: Inputs: 8 (four required, last four optional)
322: - $intervals - Reference to hash of parameters for timed intervals
323:
324: - $parmcount - numeric ID of current block
325:
326: - $navmap - navmaps object
327:
328: - $context - this will be "accesstimes" if called by lonaccesstimes.pm,
329: or "blocking" if called internally by lonblockingmenu.pm
330:
331: - $currkey - current interval (where this is a block already using
332: an interval-based trigger).
333:
334: - $jschg - text of javascript call to execute when radiobutton clicked
335: use within a box via 'onclick="$jchg"'
336:
337: - $itemname - name/scope of current interval used for this block
338:
339: - $iteminfo - Expandable/collapsible block showing which users are
340: able to activate the timer using the current trigger item.
341:
342: Outputs: 1 - $intervalform - web form elements used to select a time interval
343:
344:
345: =item &interval_details()
346:
347: Creates name/scope of current interval and expandable/collapsible
348: showing which interval parameters apply to the current folder/resource
349:
350: Inputs: 6
351:
352: - $item - course, map url, or resource symb
353:
354: - $type - course, map, or resource
355:
356: - $url - url of item (null if item is course).
357:
358: - $navmap - navmaps object
359:
360: - $intervals - Reference to hash of parameters for timed intervals
361:
362: - $parmcount - unique ID for current element.
363:
364:
365: Outputs: 2
366:
367: - $itemname - name/scope of interval (timer) parameter
368:
369: - $iteminfo - Expandable/collapsible block showing which interval
370: (timer) parameters affect the current folder or resource.
371:
372:
373: =item &trigger_details_toggle()
374:
375: Creates link used to expand item showing information about timer for current
376: trigger for exam block.
377:
378: Inputs: 1 - $parmcount - numericID of exam block in web form.
379:
380: Outputs: 1 - returns HTML for link to display contents of information item
381:
382:
383: =item &show_timer_path()
384:
385: Display hierarchy of names of folders/sub-folders containing the current
386: item identified as an item with an interval timer set.
387:
388: Inputs: 3
389: - $type - map or resource
390:
391: - $item - map URL or resource symb
392:
393: - $navmap - navmaps object
394:
395: Outputs: 1 - HTML containing hierarchy of folders/subfolders (raquo entity separated).
396:
397:
398: =item &blocktype_text()
399:
400: Inputs: None
401:
402: Output: 2
403: - $typeorder - reference to array of blockable communication/collaboration/content
404:
405: - $types -reference to hash of descriptions (localized) of blockable types.
406:
407:
408: =item &blockingmenu_javascript()
409:
410: Create Javascript used to launch pop-up used for content selection, and to
411: toggle visibility of a number of expandable/collapsible divs.
412:
413: Inputs: 1 - $blockcount - Total number of blocks in course's comm_block.db
414: database file.
415:
416: Output: 1 - Javascript (with <script></script> tags) for functions used to:
417: (a) launch pop-up window for selection of course content to which
418: access could be blocked.
419: (b) toggle visibility of a number of divs:
420:
421: =over
422:
423: =item * for block type - defined dates or timer activated
424:
425: =item * for action to take -- add or modify block
426:
427: =back
428:
429:
430: =item &details_javascript()
431:
432: Create Javascript to toggle visibility of unordered list item
433: containing details about item with timed interval parameter.
434:
435: Inputs: none
436:
437: Output: 1 Javascript (with <script></script> tags) for functions used to:
438: toggle visibility of unordered list for display of detailed
439: information about intervals.
440:
441: =back
442:
443: =cut
444:
445: package Apache::lonblockingmenu;
446:
447: use strict;
448: use Apache::lonnet;
449: use Apache::Constants qw(:common :http);
450: use Apache::loncommon();
451: use Apache::lonhtmlcommon();
452: use Apache::lonparmset();
453: use Apache::loncourserespicker();
454: use HTML::Entities();
455: use Apache::lonlocal;
456: use lib '/home/httpd/lib/perl/';
457: use LONCAPA qw(:DEFAULT :match);
458:
459: my $registered_cleanup;
460: my $modified_courses;
461:
462: sub handler {
463: my $r=shift;
464:
465: # ----------------------------------------------------------- Set document type
466:
467: &Apache::loncommon::content_type($r,'text/html');
468: $r->send_http_header;
469:
470: return OK if $r->header_only;
471:
472: # Needs to be in a course
473: if (! ($env{'request.course.fn'})) {
474: # Not in a course
475: $env{'user.error.msg'}=
476: "/adm/setblock:dcm:0:0:Cannot set blocking of communications in a course";
477: return HTTP_NOT_ACCEPTABLE;
478: }
479:
480: # ----------------------------------------------------------- Permissions check
481:
482: my ($readonly,$allowed) = &get_permission();
483: unless ($allowed) {
484: $env{'user.error.msg'}=
485: "/adm/setblock:dcm:0:0:Cannot view/set blocking of communications in a course";
486: return HTTP_NOT_ACCEPTABLE;
487: }
488:
489: # -----------------------------Get action and calling context from query string
490:
491: $registered_cleanup=0;
492: @{$modified_courses}=();
493:
494: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
495: ['action','caller','block']);
496:
497: my $crstype = &Apache::loncommon::course_type();
498: my $action = $env{'form.action'};
499: my %records = ();
500: my $blockcount = 0;
501:
502: # ------------------------------------------------------ Retrieve current blocks
503: $blockcount = &get_blockdates(\%records);
504:
505: # -------------------- Generate display for pop-up of Maps and Resources blocked
506: if ($action eq 'showdocs') {
507: my ($navmap,$errormsg) =
508: &Apache::loncourserespicker::get_navmap_object($crstype,'examblock');
509: if (ref($navmap)) {
510: my (%blockedmaps,%blockedresources);
511: if ($env{'form.block'} =~ /^\d+$/) {
512: my @currblocks = sort(keys(%records));
513: my $block = $currblocks[$env{'form.block'}];
514: if (($block ne '') && (ref($records{$block}) eq 'HASH')) {
515: if (ref($records{$block}{'blocks'}) eq 'HASH') {
516: if (ref($records{$block}{'blocks'}{'docs'}) eq 'HASH') {
517: if (ref($records{$block}{'blocks'}{'docs'}{'maps'}) eq 'HASH') {
518: %blockedmaps = %{$records{$block}{'blocks'}{'docs'}{'maps'}};
519: }
520: if (ref($records{$block}{'blocks'}{'docs'}{'resources'}) eq 'HASH') {
521: %blockedresources = %{$records{$block}{'blocks'}{'docs'}{'resources'}};
522: }
523: }
524: }
525: }
526: }
527: $r->print(&Apache::loncourserespicker::create_picker($navmap,
528: 'examblock','resourceblocks',$crstype,
529: \%blockedmaps,\%blockedresources,
530: $env{'form.block'},'','',undef,undef,$readonly));
531: } else {
532: $r->print($errormsg);
533: }
534: return OK;
535: }
536:
537: # -------------------------- Store changes and retrieve latest block information
538: my $storeresult;
539: unless ($readonly) {
540: if ($env{'form.action'} eq 'store') {
541: (my $numchanges,$storeresult) = &blockstore($r,$crstype,$blockcount,\%records);
542: if ($numchanges > 0) {
543: $blockcount = &get_blockdates(\%records);
544: }
545: }
546: }
547:
548: # ------------------------------------------------------------------ Breadcrumbs
549: &Apache::lonhtmlcommon::clear_breadcrumbs();
550: if ($env{'form.caller'} eq 'email') {
551: &Apache::lonhtmlcommon::add_breadcrumb
552: ({href=>'/adm/communicate',
553: text=>'Communication/Messages',
554: faq=>12,bug=>'Communication Tools',});
555: } else {
556: &Apache::lonhtmlcommon::add_breadcrumb
557: ({href=>'/adm/parmset',
558: text=>'Content and Problem Settings'});
559: }
560: &Apache::lonhtmlcommon::add_breadcrumb
561: ({href=>'/adm/setblock',
562: text=>'Blocking communication/content access'});
563:
564: my $js = &blockingmenu_javascript($blockcount).
565: &details_javascript();
566:
567: $r->print(
568: &Apache::loncommon::start_page('Blocking communication/content access',$js).
569: &Apache::lonhtmlcommon::breadcrumbs('Blocking communication/content access'));
570:
571: my $usertype;
572: if ($crstype eq 'Community') {
573: $usertype = 'members';
574: } else {
575: $usertype = 'students';
576: }
577: my $lctype = lc($crstype);
578: my %lt=&Apache::lonlocal::texthash (
579: 'cbds' => 'Blocking communication and/or content access during exams',
580: 'prev' => "For the duration of an exam, or a timed quiz, students in this course can be prevented from:",
581: 'blca' => "Blocks can potentially interrupt legitimate communication between $usertype who are also both enrolled in a different LON-CAPA $lctype.",
582: 'pobl' => "Portfolio blocking can impact a student's ability to complete assignments in courses besides your own. Please use this feature wisely.",
583: 'actt' => "Action to take:",
584: 'addn' => 'Add new blocking event',
585: 'mexb' => 'Modify existing blocking event(s)',
586: 'ncbc' => 'There are no blocking events currently saved.',
587: 'stor' => 'Save',
588: );
589:
590: my %ltext = &Apache::lonlocal::texthash(
591: 'type' => 'Type',
592: 'defs' => 'Defined Start/End',
593: 'trig' => 'Triggered by Activating Timer',
594: 'setb' => 'Set by',
595: 'even' => 'Event',
596: 'blck' => 'Blocked?',
597: 'star' => 'Start',
598: 'endd' => 'End',
599: 'chda' => 'Choose dates',
600: 'chtr' => 'Choose trigger',
601: 'when' => 'When using defined start/end times for an event, please set dates carefully.',
602: 'yes' => 'Yes',
603: 'no' => 'No',
604: );
605:
606: $r->print('<h3>'.$lt{'cbds'}.'</h3>');
607:
608: # ---------------------------------------------------- Get Time Limit parameters
609: my %intervals = &get_timed_items();
610:
611: # -------------------------------------------- Display information about changes
612: if ($env{'form.action'} eq 'store') {
613: $r->print($storeresult);
614: } else {
615: $r->print(
616: $lt{'prev'}.
617: '<ul>'."\n".
618: '<li>'.&mt("displaying LON-CAPA messages sent by other $usertype in the $lctype").'</li>'."\n".
619: '<li>'.&mt("displaying or posting to LON-CAPA discussion boards or live chat in the $lctype").'</li>'."\n".
620: '<li>'.&mt('accessing content in LON-CAPA portfolios or blogs').'</li>'."\n".
621: '<li>'.&mt("generating printouts of $lctype content").'</li>'.
622: '<li>'.&mt("accessing $lctype content in specified folders or resources").'</li>'.
623: '<li>'.&mt("changing user's own password").'</li>'.
624: '</ul>'.
625: '<p class="LC_warning">'.$lt{'blca'}.'<br />'.$lt{'pobl'}.'</p>'
626: );
627: }
628:
629: # ------------------------ Choose between modifying existing block or adding new
630: $r->print('<form name="blockform" method="post" action="/adm/setblock?action=store">');
631:
632: unless ($readonly) {
633: if ($blockcount > 0) {
634: $r->print(<<"END");
635: <div class="LC_left_float">
636: <fieldset><legend>$lt{'actt'}</legend>
637: <span class="LC_nobreak">
638: <label><input type="radio" name="blockaction" value="modify" id="modifyaction"
639: onclick="toggleAddModify();" checked="checked" />$lt{'mexb'}</label>
640: </span>
641: <br />
642: <span class="LC_nobreak">
643: <label><input type="radio" name="blockaction" value="add" id="addaction"
644: onclick="toggleAddModify();" />$lt{'addn'}</label>
645: </span>
646: </fieldset>
647: </div>
648: <br clear="all" />
649: <div id="showadd" style="display:none">
650: END
651: } else {
652: $r->print($lt{'ncbc'}.'<br /><br />'.
653: '<h4>'.$lt{'addn'}.'</h4>'.
654: '<input type="hidden" name="blockaction" value="add" />');
655: }
656: }
657: my ($navmap,$errormsg) =
658: &Apache::loncourserespicker::get_navmap_object($crstype,'examblock');
659:
660: # --------------------------------------------- Interface for adding a new block
661: unless ($readonly) {
662: &display_addblocker_table($r,$blockcount,\%ltext,\%intervals,
663: $navmap,$errormsg);
664: if ($blockcount > 0) {
665: $r->print('</div>');
666: }
667: }
668: # ------------------------------------------------ Interface for existing blocks
669: if (!$blockcount) {
670: if ($readonly) {
671: $r->print($lt{'ncbc'}.'<br />');
672: }
673: } else {
674: &display_blocker_status($r,\%records,\%ltext,\%intervals,
675: $navmap,$errormsg,$blockcount,$readonly);
676: }
677: unless ($readonly) {
678: $r->print(<<"END");
679: <br />
680: <input type ="submit" value="$lt{'stor'}" />
681: END
682: }
683: $r->print('</form>'.
684: &Apache::loncommon::end_page());
685: return OK;
686: }
687:
688: sub get_permission {
689: my %permission;
690: my $allowed = 0;
691: my $readonly = 0;
692: return ($readonly,$allowed) unless ($env{'request.course.id'});
693: if ((&Apache::lonnet::allowed('dcm',$env{'request.course.id'})) ||
694: (&Apache::lonnet::allowed('dcm',$env{'request.course.id'}.'/'.
695: $env{'request.course.sec'}))) {
696: $allowed = 1;
697: } elsif ((&Apache::lonnet::allowed('vcb',$env{'request.course.id'})) ||
698: (&Apache::lonnet::allowed('vcb',$env{'request.course.id'}.'/'.
699: $env{'request.course.sec'}))) {
700: $readonly = 1;
701: $allowed = 1;
702: }
703: return ($readonly,$allowed);
704: }
705:
706: sub get_timed_items {
707: my ($cdom,$cnum) = @_;
708: my ($cid,%intervals);
709: if ($cdom eq '' || $cnum eq '') {
710: $cid = $env{'request.course.id'};
711: $cdom = $env{'course.'.$cid.'.domain'};
712: $cnum = $env{'course.'.$cid.'.num'};
713: } else {
714: $cid = $cdom.'_'.$cnum;
715: }
716: if ($cid eq '') {
717: return %intervals;
718: }
719: my $resourcedata=&Apache::lonparmset::readdata($cnum,$cdom);
720: if (ref($resourcedata) eq 'HASH') {
721: foreach my $key (keys(%{$resourcedata})) {
722: if ($key =~ /^\Q$cid\E(.*)\.0\.interval$/) {
723: my $middle = $1;
724: if ($middle eq '') {
725: $intervals{'course'}{'all'} = $resourcedata->{$key};
726: } elsif ($middle =~ /^\.\[(\w+)\]$/) {
727: $intervals{'course'}{'secgrp'}{$1} = $resourcedata->{$key};
728: } elsif ($middle =~ /^\.\[useropt\:($match_username\:$match_domain)\]$/) {
729: $intervals{'course'}{'users'}{$1} = $resourcedata->{$key};
730: } elsif ($middle =~ /^\.(.+)\Q___(all)\E$/) {
731: my $inner = $1;
732: if ($inner =~ /^\[(\w+)\]\.([^\]]+)$/) {
733: $intervals{'map'}{$2}{'secgrp'}{$1} = $resourcedata->{$key};
734: } elsif ($inner =~ /^\[useropt\:($match_username\:$match_domain)\]\.([^\]]+)$/) {
735: $intervals{'map'}{$2}{'users'}{$1} = $resourcedata->{$key};
736: } else {
737: $intervals{'map'}{$inner}{'all'} = $resourcedata->{$key};
738: }
739: } elsif ($middle =~ /^\.\[(\w+)\]\.([^\]]+)$/) {
740: $intervals{'resource'}{$2}{'secgrp'}{$1} = $resourcedata->{$key};
741: } elsif ($middle =~ /^\.\[useropt\:($match_username\:$match_domain)\]\.([^\]]+)$/) {
742: $intervals{'resource'}{$2}{'users'}{$1} = $resourcedata->{$key};
743: } else {
744: my ($symb) = ($middle =~ /^\.(.+)$/);
745: $intervals{'resource'}{$symb}{'all'} = $resourcedata->{$key};
746: }
747: }
748: }
749: }
750: return %intervals;
751: }
752:
753: sub blockstore {
754: my ($r,$crstype,$blockcount,$currblockrecs) = @_;
755: my %lt=&Apache::lonlocal::texthash(
756: 'tfcm' => 'The following changes were made',
757: 'ncwm' => 'No changes were made.',
758: 'unna' => 'Unable to retrieve contents of course.',
759: );
760: my %adds = ();
761: my %removals = ();
762: my %cancels = ();
763: my $modtotal = 0;
764: my $canceltotal = 0;
765: my $addtotal = 0;
766: my $changestotal = 0;
767: my $addtimer = 0;
768: my %blocking = ();
769: my (%map_url,%resource_symb,%titles,$output);
770: $output = '<h3>'.$lt{'head'}.'</h3>';
771: if ($env{'form.blockaction'} eq 'modify') {
772: foreach my $envkey (keys(%env)) {
773: if ($envkey =~ m/^form\.action_(\d+)$/) {
774: if ($env{$envkey} eq 'modify') {
775: $adds{$1} = 1;
776: $removals{$1} = 1;
777: } elsif ($env{$envkey} eq 'cancel') {
778: $cancels{$1} = $1;
779: unless ( defined($removals{$1}) ) {
780: $removals{$1} = 1;
781: $canceltotal ++;
782: }
783: }
784: }
785: }
786: } elsif ($env{'form.blockaction'} eq 'add') {
787: $adds{$blockcount} = 1;
788: }
789: my ($navmap,$errormsg) =
790: &Apache::loncourserespicker::get_navmap_object($crstype,'examblock');
791: unless (ref($navmap)) {
792: $output = $lt{'unna'}.' '.$lt{'ncwm'}.'</br>';
793: return ($changestotal,$output);
794: }
795: &Apache::loncourserespicker::enumerate_course_contents($navmap,\%map_url,\%resource_symb,\%titles,'examblock');
796: my $do_releasereq_update;
797: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
798: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
799: my $chome = $env{'course.'.$env{'request.course.id'}.'.home'};
800: my $chostname = &Apache::lonnet::hostname($chome);
801: my ($chomemajor,$chomeminor) =
802: split(/\./,&Apache::lonnet::get_server_loncaparev($cdom,$chome));
803:
804:
805: foreach my $key (keys(%removals)) {
806: my $hashkey = $env{'form.key_'.$key};
807: if ($hashkey =~ /firstaccess____/) {
808: $do_releasereq_update = 1;
809: }
810: if (ref($currblockrecs->{$hashkey}) eq 'HASH') {
811: if (ref($currblockrecs->{$hashkey}->{'blocks'}) eq 'HASH') {
812: foreach my $type ('docs','printout') {
813: if (exists($currblockrecs->{$hashkey}->{'blocks'}->{$type})) {
814: $do_releasereq_update = 1;
815: }
816: }
817: }
818: }
819: &Apache::lonnet::del('comm_block',["$hashkey"],$cdom,$cnum);
820: }
821: if ($do_releasereq_update) {
822: push(@{$modified_courses},[$cdom,$cnum,$chome,$crstype]);
823: unless ($registered_cleanup) {
824: my $handlers = $r->get_handlers('PerlCleanupHandler');
825: $r->set_handlers('PerlCleanupHandler' => [\&update_releasereq,@{$handlers}]);
826: $registered_cleanup=1;
827: }
828: }
829: foreach my $key (keys(%adds)) {
830: unless ( defined($cancels{$key}) ) {
831: my ($newkey,$status,$needsrelease);;
832: if ($env{'form.firstaccess_'.$key}) {
833: my $interval =
834: &HTML::Entities::decode($env{'form.firstaccess_'.$key});
835: if ($interval ne '') {
836: if ($interval eq 'course') {
837: $newkey = 'firstaccess____'.$interval;
838: } elsif ($interval =~ /___\d+___/) {
839: my ($map,$resid,$url) =
840: &Apache::lonnet::decode_symb($interval);
841: if (&Apache::lonnet::is_on_map($url)) {
842: $newkey = 'firstaccess____'.$interval;
843: }
844: } elsif (&Apache::lonnet::is_on_map($interval)) {
845: $newkey = 'firstaccess____'.$interval;
846: }
847: if ($newkey ne '') {
848: unless (defined($removals{$key})) {
849: ($status,$needsrelease) = &check_release_required('timer',$chomemajor,$chomeminor);
850: if ($status eq 'fail') {
851: $newkey = '';
852: $output .= '<p class="LC_warning">'.
853: &mt('Triggering of blocking events not allowed for [_1]',
854: &escape($env{'form.title_'.$key})).'<br />';
855: }
856: }
857: }
858: }
859: } else {
860: my ($newstart,$newend) = &get_dates_from_form($key);
861: $newkey = $newstart.'____'.$newend;
862: }
863: if ($status eq 'fail') {
864: $output .= &mt('LON-CAPA version ([_1]) installed on home server ([_2]) does not meet version requirements ([_3] or newer).',
865: $chomemajor.'.'.$chomeminor,$chostname,$needsrelease).'</p>';
866: }
867: if ($newkey ne '') {
868: my ($blocktypes,$blockdocs) =
869: &get_block_choices($key,\%map_url,\%resource_symb);
870: if (ref($blocktypes) eq 'HASH') {
871: if ($blocktypes->{'printout'} eq 'on') {
872: ($status,$needsrelease) = &check_release_required('printout',$chomemajor,$chomeminor);
873: if ($status eq 'fail') {
874: $blocktypes->{'printout'} = 'off';
875: $output .= '<p class="LC_warning">'.
876: &mt('Printout blocking not allowed for [_1]',
877: &escape($env{'form.title_'.$key})).'<br />';
878: }
879: }
880: }
881: if ($blockdocs) {
882: ($status,$needsrelease) = &check_release_required('docs',$chomemajor,$chomeminor);
883: if ($status eq 'fail') {
884: delete($blocktypes->{'docs'});
885: $output .= '<p class="LC_warning">'.
886: &mt('Content blocking not allowed for [_1]',
887: &escape($env{'form.title_'.$key})).'<br />';
888: }
889: }
890: $blocking{$newkey} = {
891: setter => $env{'user.name'}.':'.$env{'user.domain'},
892: event => &escape($env{'form.title_'.$key}),
893: blocks => $blocktypes,
894: };
895: if (exists($removals{$key})) {
896: $modtotal ++;
897: } else {
898: $addtotal ++;
899: }
900: } else {
901: if ($env{'form.toggle_'.$key} eq 'timer') {
902: unless ($status eq 'fail') {
903: $output .= '<p class="LC_warning">'.
904: &mt('Invalid trigger for new blocking event').
905: '</p>';
906: }
907: } else {
908: $output .= '<p class="LC_warning">'.
909: &mt('No date range found for new blocking event').
910: '</p>';
911: }
912: }
913: }
914: }
915: if ($addtotal + $modtotal > 0) {
916: &Apache::lonnet::put('comm_block',\%blocking,
917: $env{'course.'.$env{'request.course.id'}.'.domain'},
918: $env{'course.'.$env{'request.course.id'}.'.num'}
919: );
920: }
921: $changestotal = $canceltotal + $modtotal + $addtotal;
922: if ($changestotal > 0) {
923: &Apache::lonnet::devalidate_cache_new('comm_block',
924: $env{'request.course.id'});
925: $output .= $lt{'tfcm'}.'<ul>';
926: if ($canceltotal > 0) {
927: $output .= '<li>'.
928: &mt('[quant,_1,blocking event was,blocking events were] removed.',
929: $canceltotal).
930: '</li>';
931: }
932: if ($modtotal > 0) {
933: $output .= '<li>'.
934: &mt('[quant,_1,blocking event was,blocking events were] modified.',
935: $modtotal).
936: '</li>';
937: }
938: if ($addtotal > 0) {
939: $output .= '<li>'.
940: &mt('[quant,_1,blocking event was,blocking events were] added.',
941: $addtotal).
942: '</li>';
943: }
944: $output .= '</ul>';
945: } else {
946: $output .= $lt{'ncwm'};
947: }
948: $output .= '<br />';
949: return ($changestotal,$output);
950: }
951:
952: sub update_releasereq {
953: my $readmap = 1;
954: my $getrelreq = 1;
955: if (ref($modified_courses) eq 'ARRAY') {
956: foreach my $item (@{$modified_courses}) {
957: if (ref($item) eq 'ARRAY') {
958: my ($cdom,$cnum,$chome,$crstype) = @{$item};
959: &Apache::lonrelrequtils::modify_course_relreq(undef,undef,$cnum,$cdom,
960: $chome,$crstype,$cdom.'_'.$cnum,
961: $readmap,$getrelreq);
962: }
963: }
964: $modified_courses = [];
965: }
966: undef($registered_cleanup);
967: return;
968: }
969:
970: sub get_dates_from_form {
971: my $item = shift;
972: my $startdate = &Apache::lonhtmlcommon::get_date_from_form('startdate_'.$item);
973: my $enddate = &Apache::lonhtmlcommon::get_date_from_form('enddate_'.$item);
974: return ($startdate,$enddate);
975: }
976:
977: sub get_blockdates {
978: my ($records) = @_;
979: my $blockcount = 0;
980: %{$records} = &Apache::lonnet::dump('comm_block',
981: $env{'course.'.$env{'request.course.id'}.'.domain'},
982: $env{'course.'.$env{'request.course.id'}.'.num'}
983: );
984: $blockcount = keys(%{$records});
985:
986: if ((keys(%{$records}))[0] =~ /^error: 2 /) {
987: $blockcount = 0;
988: }
989: return $blockcount;
990: }
991:
992: sub get_block_choices {
993: my ($item,$map_ref,$symb_ref) = @_;
994: my $blocklist;
995: my $blockdocs;
996: my ($typeorder,$types) = &blocktype_text();
997: foreach my $type (@{$typeorder}) {
998: if ($type eq 'docs') {
999: if ($env{'form.'.$type.'_'.$item}) {
1000: $blocklist->{$type} = {};
1001: if ($env{'form.docs_resources_'.$item}) {
1002: $env{'form.docs_resources_'.$item} =~ s/,$//;
1003: if (ref($symb_ref) eq 'HASH') {
1004: my %resources = map { $symb_ref->{$_} => 1; }
1005: (split(/,/,$env{'form.docs_resources_'.$item}));
1006: if (exists($resources{''})) {
1007: delete($resources{''});
1008: }
1009: $blocklist->{$type}->{resources} = \%resources;
1010: if (keys(%resources) > 0) {
1011: $blockdocs = 1;
1012: }
1013: }
1014: }
1015: if ($env{'form.docs_maps_'.$item}) {
1016: $env{'form.docs_maps_'.$item} =~ s/,$//;
1017: if (ref($map_ref) eq 'HASH') {
1018: my %maps = map { $map_ref->{$_} => 1; }
1019: (split(/,/,$env{'form.docs_maps_'.$item}));
1020: if (exists($maps{''})) {
1021: delete($maps{''});
1022: }
1023: $blocklist->{$type}->{maps} = \%maps;
1024: if (keys(%maps) > 0) {
1025: $blockdocs = 1;
1026: }
1027: }
1028: }
1029: }
1030: } else {
1031: if ($env{'form.'.$type.'_'.$item}) {
1032: $blocklist->{$type} = 'on';
1033: } else {
1034: $blocklist->{$type} = 'off';
1035: }
1036: }
1037: }
1038: return ($blocklist,$blockdocs);
1039: }
1040:
1041: sub check_release_required {
1042: my ($value,$chomemajor,$chomeminor) = @_;
1043: my $needsrelease = $Apache::lonnet::needsrelease{'course:commblock:'.$value};
1044: if ($needsrelease) {
1045: my ($needsmajor,$needsminor) = split(/\./,$needsrelease);
1046: if (($chomemajor < $needsmajor) ||
1047: (($chomemajor == $needsmajor) && ($chomeminor < $needsminor))) {
1048: return ('fail',$needsrelease);
1049: }
1050: my $curr_required =
1051: $env{'course.'.$env{'request.course.id'}.'.internal.releaserequired'};
1052: if ($curr_required eq '') {
1053: &Apache::lonnet::update_released_required($needsrelease);
1054: } else {
1055: my ($currmajor,$currminor) = split(/\./,$curr_required);
1056: my ($needsmajor,$needsminor) = split(/\./,$needsrelease);
1057: if (($currmajor < $needsmajor) ||
1058: ($currmajor == $needsmajor && $currminor < $needsminor)) {
1059: &Apache::lonnet::update_released_required($needsrelease);
1060: }
1061: }
1062: }
1063: return ('ok',$needsrelease);
1064: }
1065:
1066: sub display_blocker_status {
1067: my ($r,$records,$ltext,$intervals,$navmap,$errormsg,$blockcount,$readonly) = @_;
1068: my $parmcount = 0;
1069: my (%map_url,%resource_symb,%titles,%lookups,$disabled);
1070: &Apache::loncourserespicker::enumerate_course_contents($navmap,\%map_url,\%resource_symb,\%titles,'examblock');
1071: %{$lookups{'maps'}} = reverse(%map_url);
1072: %{$lookups{'resources'}} = reverse(%resource_symb);
1073: my %lt = &Apache::lonlocal::texthash(
1074: 'modi' => 'Modify',
1075: 'dele' => 'Delete',
1076: 'noch' => 'No change',
1077: );
1078: $r->print('<div id="showmodify" style="display:block">'.
1079: &Apache::loncommon::start_data_table().'<tr>');
1080: if ($readonly) {
1081: $disabled = ' disabled="disabled"';
1082: } else {
1083: $r->print('<th></th>');
1084: }
1085: $r->print(<<"END");
1086: <th>$ltext->{'type'}</th>
1087: <th>$ltext->{'even'}</th>
1088: <th>$ltext->{'blck'}</th>
1089: </tr>
1090: END
1091: foreach my $record (sort(keys(%{$records}))) {
1092: my $jschg =
1093: 'javascript:window.document.forms['. "'blockform'".']'.
1094: '.elements['."'action_$parmcount'".'][0].checked=true;';
1095: my $onchange = 'onfocus="'.$jschg.'"';
1096: my ($setuname,$setudom,$title,$blocks) =
1097: &Apache::loncommon::parse_block_record($$records{$record});
1098: $title = &HTML::Entities::encode($title,'"<>&');
1099: my $blockid = &HTML::Entities::encode($record,'"<>&');
1100: my $settername =
1101: &Apache::loncommon::aboutmewrapper(
1102: &Apache::loncommon::plainname($setuname,$setudom),
1103: $setuname,$setudom);
1104: my $state = '';
1105: $r->print(&Apache::loncommon::start_data_table_row());
1106: if ($readonly) {
1107: $state = 'disabled';
1108: } else {
1109: $r->print(<<"ACT");
1110:
1111: <td valign="middle"><span class="LC_nobreak"><label>
1112: <input type="radio" name="action_$parmcount" value="modify" />$lt{'modi'}
1113: </label></span><br />
1114: <span class="LC_nobreak"><label>
1115: <input type="radio" name="action_$parmcount" value="cancel" />$lt{'dele'}
1116: </label></span><br />
1117: <span class="LC_nobreak"><label>
1118: <input type="radio" name="action_$parmcount" id="nochange_$parmcount"
1119: value="nochange" checked="checked" />$lt{'noch'}
1120: </label></span>
1121: </td>
1122: ACT
1123: }
1124: my ($start,$end,$startform,$endform);
1125: if ($record =~ /^(\d+)____(\d+)$/) {
1126: ($start,$end) = split(/____/,$record);
1127: $startform = &Apache::lonhtmlcommon::date_setter('blockform','startdate_'.
1128: $parmcount,$start,$onchange,
1129: undef,$state);
1130: $endform = &Apache::lonhtmlcommon::date_setter('blockform','enddate_'.
1131: $parmcount,$end,$onchange,
1132: undef,$state);
1133: $r->print('<td><fieldset><legend>'.$ltext->{'defs'}.'</legend>'.
1134: $ltext->{'star'}.': '.$startform.'<br />'.
1135: $ltext->{'endd'}.': '.$endform.'</fieldset></td>');
1136: } elsif ($record =~ /^firstaccess____(.+)$/) {
1137: my $item = $1;
1138: my $type = 'map';
1139: my $url;
1140: if ($item eq 'course') {
1141: $type = 'course';
1142: } elsif ($item =~ /___\d+___/) {
1143: $type = 'resource';
1144: (my $map, my $resid, $url) = &Apache::lonnet::decode_symb($item);
1145: } else {
1146: $url = $item;
1147: }
1148: $r->print('<td><fieldset><legend>'.$ltext->{'trig'}.'</legend>');
1149: my ($itemname,$iteminfo) = &interval_details($item,$type,$url,$navmap,$intervals,$parmcount);
1150: $r->print(&create_interval_form($intervals,$parmcount,$navmap,'blocking',$item,$jschg,
1151: $itemname,$iteminfo,$disabled).'</fieldset></td>');
1152: }
1153: $r->print(<<"END");
1154: <td>
1155: <input type="text" name="title_$parmcount" size="15" value="$title" onfocus="$jschg" $disabled />
1156: <input type="hidden" name="key_$parmcount" value="$blockid" />
1157: <br />
1158: <br />
1159: $ltext->{'setb'}: $settername
1160: </td>
1161: END
1162: $r->print('<td>'.&blocker_checkboxes($parmcount,$blocks,$jschg,\%lookups,$disabled).'</td>'.
1163: &Apache::loncommon::end_data_table_row());
1164: $parmcount++;
1165: }
1166: $r->print(<<"END");
1167: </table>
1168: </div>
1169: END
1170: return;
1171: }
1172:
1173: sub convlim {
1174: my ($timelimit) = @_;
1175: my @order = ('days','hours','minutes','seconds');
1176: my %catlimits = (
1177: days => 86400,
1178: hours => 3600,
1179: minutes => 60,
1180: );
1181: my @toshow;
1182: foreach my $cat (@order) {
1183: if ($cat eq 'seconds') {
1184: if ($timelimit > 0) {
1185: push(@toshow,&mt("[_1] $cat",$timelimit));
1186: }
1187: } elsif ($timelimit >= $catlimits{$cat}) {
1188: my $val = int($timelimit/$catlimits{$cat});
1189: if ($val > 0) {
1190: push(@toshow,&mt("[_1] $cat",$val));
1191: }
1192: $timelimit -= $val*$catlimits{$cat};
1193: }
1194: }
1195: my $output = join(', ',@toshow);
1196: return $output;
1197: }
1198:
1199: sub display_addblocker_table {
1200: my ($r,$parmcount,$ltext,$intervals,$navmap,$errormsg) = @_;
1201: return unless ((ref($ltext) eq 'HASH') && (ref($intervals) eq 'HASH'));
1202: my $start = time;
1203: my $end = $start + (60 * 60 * 2); #Default is an exam of 2 hours duration.
1204: my $onchange = 'onfocus="javascript:window.document.forms['.
1205: "'blockform'].elements['addaction'].".
1206: 'checked=true;"';
1207: my $startform = &Apache::lonhtmlcommon::date_setter('blockform','startdate_'.
1208: $parmcount,$start,$onchange);
1209: my $endform = &Apache::lonhtmlcommon::date_setter('blockform','enddate_'.
1210: $parmcount,$end,$onchange);
1211: my %lt = &Apache::lonlocal::texthash(
1212: 'exam' => 'e.g., Exam 1',
1213: );
1214: my $intervalform = &create_interval_form($intervals,$parmcount,$navmap,'blocking');
1215: if ($intervalform ne '') {
1216: $intervalform = '<fieldset>'.
1217: '<legend>'.$ltext->{'chtr'}.'</legend>'.
1218: $intervalform.
1219: '</fieldset>';
1220: }
1221: $r->print(&Apache::loncommon::start_data_table());
1222: $r->print(<<"END");
1223: <tr>
1224: <th>$ltext->{'type'}</th>
1225: <th>$ltext->{'even'} $lt{'exam'}</th>
1226: <th>$ltext->{'blck'}</th>
1227: </tr>
1228: END
1229: $r->print(&Apache::loncommon::start_data_table_row().'<td>');
1230: $r->print(<<"END");
1231: <span class="LC_nobreak"><label><input type="radio" id="toggle_startstop"
1232: name="toggle_$parmcount" value="startstop" onclick="showBlockType();" checked="checked" />
1233: $ltext->{'defs'}</label></span>
1234: <span class="LC_nobreak"><label><input type="radio" id="toggle_timer" name="toggle_$parmcount"
1235: value="timer" onclick="showBlockType();" />$ltext->{'trig'}</label></span><br />
1236: <div id="show_startstop" style="display:block">
1237: <fieldset><legend>$ltext->{'chda'}</legend>
1238: $ltext->{'star'}: $startform<br />$ltext->{'endd'}: $endform</fieldset>
1239: <span class="LC_warning">$ltext->{'when'}</span></div>
1240: <div id="show_timer" style="display:none">$intervalform</div>
1241: </td>
1242: <td><input type="text" name="title_$parmcount" size="15" value="" /></td>
1243: END
1244: $r->print('<td>'.&blocker_checkboxes($parmcount).'</td>'.
1245: &Apache::loncommon::end_data_table_row().
1246: &Apache::loncommon::end_data_table()."\n".
1247: '<br />');
1248: return;
1249: }
1250:
1251: sub blocker_checkboxes {
1252: my ($parmcount,$blocks,$jschg,$lookups,$disabled) = @_;
1253: my ($typeorder,$types) = &blocktype_text();
1254: my $numinrow = 2;
1255: my %currdocs;
1256: my $output = '<table>';
1257: for (my $i=0; $i<@{$typeorder}; $i++) {
1258: my $block = $typeorder->[$i];
1259: my ($clickaction,$blockstatus);
1260: if ($jschg) {
1261: $clickaction = $jschg;
1262: }
1263: if ($block eq 'docs') {
1264: if ((ref($blocks) eq 'HASH') && (ref($lookups) eq 'HASH')) {
1265: if (ref($blocks->{$block}) eq 'HASH') {
1266: if (keys(%{$blocks->{$block}}) > 0) {
1267: $blockstatus = 'checked="checked"';
1268: foreach my $key (sort(keys(%{$blocks->{$block}}))) {
1269: if (ref($blocks->{$block}{$key}) eq 'HASH') {
1270: my @current = ();
1271: foreach my $item (keys(%{$blocks->{$block}{$key}})) {
1272: if ($lookups->{$key}{$item}) {
1273: push(@current,$lookups->{$key}{$item});
1274: }
1275: }
1276: if (@current > 0) {
1277: @current=sort { $a <=> $b } (@current);
1278: $currdocs{$key} = join(',',@current);
1279: }
1280: }
1281: }
1282: }
1283: }
1284: }
1285: $clickaction .= 'javascript:resblockinfo('."'$parmcount'".');';
1286: } else {
1287: if (ref($blocks) eq 'HASH') {
1288: if ($blocks->{$block} eq 'on') {
1289: $blockstatus = 'checked="checked"';
1290: }
1291: }
1292: }
1293: my $rem = $i%($numinrow);
1294: if ($rem == 0) {
1295: if ($i > 0) {
1296: $output .= '</tr>';
1297: }
1298: $output .= '<tr>';
1299: }
1300: if ($i == scalar(@{$typeorder})-1) {
1301: my $colsleft = $numinrow-$rem;
1302: if ($colsleft > 1) {
1303: $output .= '<td colspan="'.$colsleft.'">';
1304: } else {
1305: $output .= '<td>';
1306: }
1307: } else {
1308: $output .= '<td>';
1309: }
1310: my $item = $block.'_'.$parmcount;
1311: if ($clickaction) {
1312: $clickaction = ' onclick="'.$clickaction.'"';
1313: }
1314: if ($blockstatus) {
1315: $blockstatus = ' '.$blockstatus;
1316: }
1317: $output .= '<span class="LC_nobreak"><label>'."\n".
1318: '<input type="checkbox" id="'.$item.'" name="'.$item.'"'.
1319: $blockstatus.$clickaction.' value="1"'.$disabled.' />'.
1320: $types->{$block}.'</label></span>'."\n";
1321: if ($block eq 'docs') {
1322: if ($blockstatus ne '') {
1323: $output .= ' <a href="javascript:resblockinfo('."'$parmcount'".')">'.
1324: &mt('Details').'</a>';
1325: }
1326: }
1327: $output .= '<br /></td>';
1328: }
1329: $output .= '</tr></table>'.
1330: '<input type="hidden" name="docs_maps_'.$parmcount.'"'.
1331: ' id="docs_maps_'.$parmcount.'" value="'.$currdocs{'maps'}.'" />'.
1332: '<input type="hidden" name="docs_resources_'.$parmcount.'"'.
1333: ' id="docs_resources_'.$parmcount.'" value="'.$currdocs{'resources'}.'" />';
1334: return $output;
1335: }
1336:
1337: sub create_interval_form {
1338: my ($intervals,$parmcount,$navmap,$context,$currkey,$jschg,$itemname,$iteminfo,$disabled) = @_;
1339: return unless ((ref($intervals) eq 'HASH') && (ref($navmap)));
1340: my $intervalform;
1341: my $counter = 0;
1342: if (keys(%{$intervals}) > 0) {
1343: foreach my $type (sort(keys(%{$intervals}))) {
1344: if ($type eq 'course') {
1345: my ($checked,$clickaction);
1346: if ($currkey eq 'course') {
1347: $checked = ' checked="checked"';
1348: } elsif ($jschg) {
1349: $clickaction = ' onclick="'.$jschg.'"';
1350: }
1351: $intervalform .= '<label><input type="radio" name="firstaccess_'.$parmcount.
1352: '" value="course"'.$checked.$clickaction.$disabled.' />';
1353: if ($currkey eq 'course') {
1354: $intervalform .= $itemname;
1355: } else {
1356: $intervalform .= &mt('Timer for all items in course');
1357: }
1358: $intervalform .= '</label>';
1359: if ($currkey eq 'course') {
1360: $intervalform .= $iteminfo;
1361: } elsif ($context eq 'accesstimes') {
1362: (undef,$iteminfo) = &interval_details('course',$type,'',$navmap,$intervals,$counter);
1363: if ($iteminfo) {
1364: $intervalform .= ' '.$iteminfo;
1365: }
1366: }
1367: $intervalform .= '<br />';
1368: $counter ++;
1369: } elsif ($type eq 'map') {
1370: if (ref($intervals->{$type}) eq 'HASH') {
1371: if (ref($navmap)) {
1372: foreach my $map (sort(keys(%{$intervals->{$type}}))) {
1373: next if ((!&Apache::lonnet::is_on_map($map)) &&
1374: ($currkey ne $map));
1375: my ($checked,$clickaction);
1376: if ($currkey eq $map) {
1377: $checked = ' checked="checked"';
1378: } elsif ($jschg) {
1379: $clickaction = ' onclick="'.$jschg.'"';
1380: }
1381: $intervalform .= '<label><input type="radio" name="firstaccess_'.$parmcount.
1382: '" value="'.&HTML::Entities::encode($map,'"<>&').'"'.
1383: $checked.$clickaction.$disabled.' />';
1384: if ($currkey eq $map) {
1385: $intervalform .= $itemname.'</label>'.$iteminfo;
1386: } else {
1387: my ($resobj,$title,$path,$hierarchy);
1388: $resobj = $navmap->getResourceByUrl($map);
1389: if (ref($resobj)) {
1390: $title = $resobj->compTitle();
1391: } else {
1392: $title = &Apache::lonnet::gettitle($map);
1393: }
1394: $hierarchy = &show_timer_path($type,$map,$navmap);
1395: if ($hierarchy) {
1396: $path = ' <span style="font-size:90%;">'.
1397: &mt('(in: [_1])',$hierarchy).
1398: '</span>';
1399: }
1400: $intervalform .= &mt('Timer for all items in folder: [_1]',
1401: '<i>'.$title.'</i>').
1402: '</label>'.$path;
1403: if ($context eq 'accesstimes') {
1404: (undef,$iteminfo) = &interval_details($map,$type,$map,$navmap,$intervals,$counter);
1405: if ($iteminfo) {
1406: $intervalform .= ' '.$iteminfo;
1407: }
1408: }
1409: }
1410: $intervalform .= '<br />';
1411: $counter ++;
1412: }
1413: }
1414: }
1415: } elsif ($type eq 'resource') {
1416: if (ref($intervals->{$type}) eq 'HASH') {
1417: if (ref($navmap)) {
1418: foreach my $resource (sort(keys(%{$intervals->{$type}}))) {
1419: my ($checked,$clickaction,$resobj);
1420: if ($currkey eq $resource) {
1421: $checked = ' checked="checked"';
1422: } else {
1423: $resobj = $navmap->getBySymb($resource);
1424: next unless(ref($resobj));
1425: if ($jschg) {
1426: $clickaction = ' onclick="'.$jschg.'"';
1427: }
1428: }
1429: $intervalform .= '<label><input type="radio" name="firstaccess_'.$parmcount.
1430: '" value="'.&HTML::Entities::encode($resource,'"<>&').'"'.
1431: $checked.$clickaction.$disabled.' />';
1432: if ($currkey eq $resource) {
1433: $intervalform .= $itemname.'</label>'.$iteminfo;
1434: } else {
1435: my ($title,$path,$hierarchy);
1436: if (ref($resobj)) {
1437: $title = $resobj->compTitle();
1438: }
1439: if ($title eq '') {
1440: $title = &Apache::lonnet::gettitle($resource);
1441: }
1442: $hierarchy = &show_timer_path($type,$resource,$navmap);
1443: if ($hierarchy) {
1444: $path = ' <span style="font-size:90%;">'.
1445: &mt('(in: [_1])',$hierarchy).
1446: '</span>';
1447: }
1448: $intervalform .= &mt('Timer for resource: [_1]','<i>'.$title.'</i>').
1449: '</label>'.
1450: $path;
1451: if ($context eq 'accesstimes') {
1452: if (ref($resobj)) {
1453: my $url = $resobj->src();
1454: if ($url eq '') {
1455: (my $map, my $resid, $url) = &Apache::lonnet::decode_symb($resource);
1456: }
1457: ($itemname,$iteminfo) = &interval_details($resource,$type,$url,$navmap,$intervals,$counter);
1458: $intervalform .= ' '.$iteminfo;
1459: }
1460: }
1461: }
1462: $intervalform .= '<br />';
1463: $counter ++;
1464: }
1465: }
1466: }
1467: }
1468: }
1469: } else {
1470: if ($currkey ne '') {
1471: $intervalform = '<input type="radio" name="firstaccess_'.$parmcount.
1472: '" checked="checked" value="'.
1473: &HTML::Entities::encode($currkey,'"<>&').'"'.$disabled.' />'.
1474: $itemname.'<br />';
1475: } else {
1476: $intervalform = &mt('No timed items defined.').' '.
1477: &mt('Use [_1]Settings[_2] to assign a timer, then return here.',
1478: '<a href="/adm/parmset">','</a>');
1479: }
1480: }
1481: return $intervalform;
1482: }
1483:
1484: sub trigger_details_toggle {
1485: my ($parmcount) = @_;
1486: return ' <span id="toggletext_'.$parmcount.'" class="LC_cusr_subheading LC_nobreak">'.
1487: '<a href="javascript:showTriggerDetails('."'$parmcount'".');" '.
1488: 'style="text-decoration: none;"><b>'.&mt('(More ...)').'</b></a></span>';
1489: }
1490:
1491: sub interval_details {
1492: my ($item,$type,$url,$navmap,$intervals,$parmcount) = @_;
1493: my ($itemname,$iteminfo,$skipdetails);
1494: if ($type eq 'course') {
1495: $itemname = &mt('Timer for all items in course.');
1496: } else {
1497: if (&Apache::lonnet::is_on_map($url)) {
1498: if ($type eq 'map') {
1499: if (ref($navmap)) {
1500: my $title;
1501: my $resobj = $navmap->getResourceByUrl($item);
1502: if (ref($resobj)) {
1503: $title = $resobj->compTitle();
1504: } else {
1505: $title = &Apache::lonnet::gettitle($item);
1506: }
1507: $itemname = &mt('Timer for all items in folder: [_1]',
1508: '<span style="font-style:italic">'.
1509: $title.'</span>');
1510: }
1511: } else {
1512: if (ref($navmap)) {
1513: my $title;
1514: my $resobj = $navmap->getBySymb($item);
1515: if (ref($resobj)) {
1516: $title = $resobj->compTitle();
1517: } else {
1518: $title = &Apache::lonnet::gettitle($item);
1519: }
1520: $itemname = &mt('Timer for resource: [_1]',
1521: '<span style="font-style:italic">'.
1522: $title.'</span>');
1523: }
1524: }
1525: if (ref($navmap)) {
1526: my $path = &show_timer_path($type,$item);
1527: if ($path) {
1528: $iteminfo = ' <span style="font-size:90%;">'.
1529: &mt('(in: [_1])',$path).
1530: '</span>';
1531: }
1532: }
1533: } else {
1534: $skipdetails = 1;
1535: $itemname = '<span style="LC_warning">'.
1536: &mt('Timer folder/resource not in course').
1537: '</span>';
1538: }
1539: }
1540: if ((!$skipdetails) && (ref($intervals) eq 'HASH') && (ref($intervals->{$type}) eq 'HASH')) {
1541: $iteminfo = &trigger_details_toggle($parmcount).
1542: '<ul id="trigdetails_'.$parmcount.'" style="display:none">';
1543: if ($type eq 'course') {
1544: foreach my $scope (keys(%{$intervals->{$type}})) {
1545: if ($scope eq 'all') {
1546: $iteminfo .= '<li>'.&mt('All users -- time limit: [_1]',
1547: &convlim($intervals->{$type}->{$scope})).'</li>';
1548: } elsif ($scope eq 'secgrp') {
1549: if (ref($intervals->{$type}->{$scope}) eq 'HASH') {
1550: $iteminfo .= '<li>'.&mt('Sections/groups').'<ul>';
1551: foreach my $item (sort(keys(%{$intervals->{$type}->{$scope}}))) {
1552: $iteminfo .= '<li>'.&mt('[_1] -- time limit: [_2]',$item,
1553: &convlim($intervals->{$type}->{$scope}->{$item})).
1554: '</li>';
1555: }
1556: $iteminfo .= '</ul></li>';
1557: }
1558: } elsif ($scope eq 'users') {
1559: if (ref($intervals->{$type}->{$scope}) eq 'HASH') {
1560: $iteminfo .= '<li>'.&mt('Users').'<ul>';
1561: foreach my $item (sort(keys(%{$intervals->{$type}->{$scope}}))) {
1562: $iteminfo .= '<li>'.&mt('[_1] -- time limit: [_2]',
1563: &convlim($item,$intervals->{$type}->{$scope}->{$item})).
1564: '</li>';
1565: }
1566: $iteminfo .= '</ul></li>';
1567: }
1568: }
1569: }
1570: } elsif (($type eq 'map') || ($type eq 'resource')) {
1571: if (ref($intervals->{$type}->{$item}) eq 'HASH') {
1572: foreach my $scope (keys(%{$intervals->{$type}->{$item}})) {
1573: if ($scope eq 'all') {
1574: $iteminfo .= '<li>'.&mt('All users -- time limit: [_1]',
1575: &convlim($intervals->{$type}->{$item}->{$scope})).
1576: '</li>';
1577: } elsif ($scope eq 'secgrp') {
1578: if (ref($intervals->{$type}->{$item}->{$scope}) eq 'HASH') {
1579: $iteminfo .= '<li>'.&mt('Sections/groups').'<ul>';
1580: foreach my $sec (sort(keys(%{$intervals->{$type}->{$item}->{$scope}}))) {
1581: $iteminfo .= '<li>'.&mt('[_1] -- time limit: [_2]',$sec,
1582: &convlim($intervals->{$type}->{$item}->{$scope}->{$sec})).
1583: '</li>';
1584: }
1585: $iteminfo .= '</ul></li>';
1586: }
1587: } elsif ($scope eq 'users') {
1588: if (ref($intervals->{$type}->{$item}->{$scope}) eq 'HASH') {
1589: $iteminfo .= '<li>'.&mt('Users').'<ul>';
1590: foreach my $user (sort(keys(%{$intervals->{$type}->{$item}->{$scope}}))) {
1591: $iteminfo .= '<li>'.&mt('[_1] -- time limit: [_2]',$user,
1592: &convlim($intervals->{$type}->{$item}->{$scope}->{$user})).
1593: '</li>';
1594: }
1595: $iteminfo .= '</ul></li>';
1596: }
1597: }
1598: }
1599: }
1600: }
1601: $iteminfo .= '</ul>';
1602: }
1603: return ($itemname,$iteminfo);
1604: }
1605:
1606: sub show_timer_path {
1607: my ($type,$item,$navmap) = @_;
1608: return unless(ref($navmap));
1609: my @pathitems;
1610: if ($type eq 'map') {
1611: @pathitems =
1612: &Apache::loncommon::get_folder_hierarchy($navmap,$item);
1613: } elsif ($type eq 'resource') {
1614: my ($map,$id,$resource) = &Apache::lonnet::decode_symb($item);
1615: @pathitems =
1616: &Apache::loncommon::get_folder_hierarchy($navmap,$map,1);
1617: }
1618: if (@pathitems) {
1619: return join(' » ',@pathitems);
1620: }
1621: return;
1622: }
1623:
1624: sub blocktype_text {
1625: my %types = &Apache::lonlocal::texthash(
1626: 'com' => 'Messaging',
1627: 'chat' => 'Chat Room',
1628: 'boards' => 'Discussion',
1629: 'port' => 'Portfolio',
1630: 'groups' => 'Groups',
1631: 'blogs' => 'Blogs',
1632: 'docs' => 'Content',
1633: 'printout' => 'Printouts',
1634: 'passwd' => 'Change Password',
1635: );
1636: my $typeorder = ['com','chat','boards','port','groups','blogs','printout','docs','passwd'];
1637: return ($typeorder,\%types);
1638: }
1639:
1640: sub blockingmenu_javascript {
1641: my ($blockcount) = @_;
1642: return <<ENDSCRIPT;
1643: <script type="text/javascript">
1644: // <![CDATA[
1645: function resblockinfo(blockid) {
1646: if (document.getElementById('docs_'+blockid).checked) {
1647: var resblockwin = null;
1648: var url = '/adm/setblock?action=showdocs&block='+blockid;
1649: if (!resblockwin || resblockwin.closed) {
1650: resblockwin=window.open(url,'blockingwin','height=480,width=600,resizable=yes,scrollbars=yes,location=no,menubar=no,toolbar=no');
1651: }
1652: resblockwin.focus();
1653: } else {
1654: document.getElementById('docs_resources_'+blockid).value = '';
1655: document.getElementById('docs_maps_'+blockid).value = '';
1656: }
1657: return;
1658: }
1659:
1660: function showBlockType() {
1661: if (document.getElementById('toggle_startstop').checked == true) {
1662: document.getElementById('show_startstop').style.display='block';
1663: } else {
1664: document.getElementById('show_startstop').style.display='none';
1665: }
1666: if (document.getElementById('toggle_timer').checked == true) {
1667: document.getElementById('show_timer').style.display='block';
1668: } else {
1669: document.getElementById('show_timer').style.display='none';
1670: }
1671: return;
1672: }
1673:
1674: function toggleAddModify() {
1675: for (var i=0; i<document.blockform.blockaction.length; i++) {
1676: if (document.blockform.blockaction[i].checked) {
1677: if (document.blockform.blockaction[i].value == 'add') {
1678: document.getElementById('showadd').style.display='block';
1679: document.getElementById('showmodify').style.display='none';
1680: var blocktotal = $blockcount;
1681: if (blocktotal > 0) {
1682: for (var i=0; i<blocktotal; i++) {
1683: document.getElementById('nochange_'+i).checked = true;
1684: }
1685: }
1686: document.getElementById('showmodify').style.display='none';
1687: document.getElementById('showadd').style.display='block';
1688: } else {
1689: document.getElementById('showadd').style.display='none';
1690: document.getElementById('showmodify').style.display='block';
1691: }
1692: }
1693: }
1694: return;
1695: }
1696:
1697: // ]]>
1698: </script>
1699: ENDSCRIPT
1700:
1701: }
1702:
1703: sub details_javascript {
1704: my %lt = &Apache::lonlocal::texthash (
1705: more => 'More ...',
1706: less => 'Less ...',
1707: );
1708: return <<ENDSCRIPT;
1709:
1710: <script type="text/javascript">
1711: // <![CDATA[
1712:
1713: function showTriggerDetails(item) {
1714: document.getElementById('trigdetails_'+item).style.display='block';
1715: document.getElementById('trigdetails_'+item).style.textAlign='left';
1716: document.getElementById('trigdetails_'+item).style.textFace='normal';
1717: document.getElementById('toggletext_'+item).innerHTML = '<a href="javascript:hideTriggerDetails('+item+');" style="text-decoration: none;"><b>($lt{'less'})</b></a>';
1718: return;
1719: }
1720:
1721: function hideTriggerDetails(item) {
1722: document.getElementById('trigdetails_'+item).style.display='none';
1723: document.getElementById('toggletext_'+item).innerHTML = '<a href="javascript:showTriggerDetails('+item+');" style="text-decoration: none;"><b>($lt{'more'})</b></a>';
1724: return;
1725: }
1726:
1727: // ]]>
1728: </script>
1729: ENDSCRIPT
1730:
1731: }
1732:
1733: 1;
1734:
1735: __END__
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