Annotation of loncom/interface/lonextresedit.pm, revision 1.4
1.1 raeburn 1: # The LearningOnline Network
2: # Documents
3: #
1.4 ! raeburn 4: # $Id: lonextresedit.pm,v 1.3 2012/12/02 22:40:09 raeburn Exp $
1.1 raeburn 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:
29: package Apache::lonextresedit;
30:
31: use strict;
32: use Apache::Constants qw(:common :http);
33: use HTML::Entities;
34: use Apache::lonlocal;
35: use Apache::lonnet;
36: use Apache::loncommon;
37: use Apache::lonhtmlcommon;
38: use Apache::lonuserstate;
39: use LONCAPA::map();
40: use LONCAPA qw(:DEFAULT :match);
41:
42: sub handler {
43: my $r=shift;
44: &Apache::loncommon::content_type($r,'text/html');
45: $r->send_http_header;
46:
47: return OK if $r->header_only;
48:
49: # Check for access
50: if (! &Apache::lonnet::allowed('mdc',$env{'request.course.id'})) {
51: $env{'user.error.msg'}=
52: $r->uri.":mdc:0:0:Cannot modify course content.";
53: return HTTP_NOT_ACCEPTABLE;
54: }
55:
56: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
57: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
58: my $chome = $env{'course.'.$env{'request.course.id'}.'.home'};
59: my ($supplementalflag,$updated,$output,$errormsg,$residx,$url,$title,$symb);
60: if ((($env{'form.folderpath'} =~ /^supplemental/) && ($env{'form.suppurl'})) ||
61: ($env{'form.symb'} =~ /^uploaded/)) {
62: $supplementalflag = 1;
63: ($updated,$output,$errormsg,$residx,$url,$title,$symb) =
64: &process_changes($supplementalflag,$cdom,$cnum,$chome);
65: if ($supplementalflag) {
66: if ($url ne $env{'form.suppurl'}) {
67: $env{'form.suppurl'} = $url;
68: }
69: if ($title ne $env{'form.title'}) {
70: $env{'form.title'} = $title;
71: }
72: } else {
73: if ($symb ne $env{'form.symb'}) {
74: $env{'form.symb'} = $symb;
75: }
76: }
77: } else {
78: $errormsg = &mt('Information about external resource to edit is missing.');
79: }
80: if ($updated) {
81: $output = &Apache::lonhtmlcommon::confirm_success(&mt('External Resource updated'));
82: }
83: if ($errormsg) {
84: $errormsg = '<p class="LC_error">'.$errormsg.'</p>';
85: }
86: my $js = &Apache::lonhtmlcommon::scripttag(&extedit_javascript());
87: my $pathitem = '<input type="hidden" name="folderpath" value="'.
88: &HTML::Entities::encode($env{'form.folderpath'},'<>&"').'" />';
89: $r->print(&Apache::loncommon::start_page('External Resource Editor',$js).
90: '<div class="LC_left_float">'.
91: $output.
92: $errormsg.
93: &extedit_form($supplementalflag,$residx,$url,$title,$pathitem,undef,
94: 'direct',$env{'form.symb'}).
95: '</div>'.&Apache::loncommon::end_page());
96: return OK;
97: }
98:
99: sub process_changes {
100: my ($supplementalflag,$cdom,$cnum,$chome) = @_;
101: my ($folder,$container,$output,$errormsg,$updated,$symb,$oldidx,$oldurl,
102: $oldtitle,$residx,$newurl,$newtitle);
103: if ($env{'form.symb'}) {
104: $symb = $env{'form.symb'};
105: (my $map,$oldidx,my $url)=&Apache::lonnet::decode_symb($symb);
106: if ($map =~ m{^uploaded/$cdom/$cnum/(default(_\d+|))\.(sequence|page)$}) {
107: $folder = $1;
108: $container = $3;
109: }
110: if ($url =~ m{^ext/(.+)$}) {
111: $oldurl = $1;
112: if ($oldurl !~ m{^https://}) {
113: $oldurl = 'http://'.$oldurl;
114: }
115: }
116: $oldtitle = &Apache::lonnet::gettitle($env{'form.symb'});
117: } elsif ($env{'form.folderpath'}) {
118: $folder = &unescape( (split('&',$env{'form.folderpath'}))[-2] );
119: $oldurl = &unescape($env{'form.suppurl'});
120: $oldtitle = &unescape($env{'form.title'});
121: $container = 'sequence';
122: $supplementalflag = 1;
123: }
124: if ($folder && $container) {
125: if ($env{'form.importdetail'}) {
126: my ($errtext,$fatal,$mismatchedid);
127: ($newtitle,$newurl, $residx) =
128: map {&unescape($_)} split(/\=/,$env{'form.importdetail'});
129: if (!$supplementalflag && $oldidx) {
130: if ($oldidx != $residx) {
131: $mismatchedid = 1;
132: $residx = $oldidx;
133: }
134: }
135: my @imports;
136: if ($mismatchedid) {
137: $errormsg = 'Wrong item identifier';
138: } elsif (($newtitle eq $oldtitle) && ($newurl eq $oldurl)) {
139: $output = &mt('No change');
140: } else {
141: my $map = "/uploaded/$cdom/$cnum/$folder.$container";
142: my ($errtext,$fatal) = &LONCAPA::map::mapread($map);
143: if ($fatal) {
144: $errormsg = &mt('Update failed: [_1].',$errtext);
145: } else {
146: my $saveurl = &LONCAPA::map::qtunescape($newurl);
147: my $savetitle = &LONCAPA::map::qtunescape($newtitle);
148: $LONCAPA::map::resources[$residx] =
149: join(':', ($savetitle,$saveurl,'true','normal','res'));
150: my ($outtext,$errtext) = &LONCAPA::map::storemap($map,1);
151: if ($errtext) {
152: $errormsg = &mt('Update failed: [_1].',$errtext);
153: } else {
154: $updated = 1;
155: if (!$supplementalflag) {
156: if ($newurl ne $oldurl) {
157: $symb = &Apache::lonnet::encode_symb($map,$residx,"ext/$newurl");
158: } else {
159: $symb = $env{'form.symb'};
160: if ($symb) {
161: &Apache::lonnet::devalidate_title_cache($symb);
162: }
163: }
164: }
165: my ($furl,$ferr) = &Apache::lonuserstate::readmap("$cdom/$cnum");
166: if ($ferr) {
167: $errormsg = &mt('Reload failed: [_1].',$ferr);
168: } else {
169: &Apache::loncommon::update_content_constraints($cdom,$cnum,$chome,
170: $cdom.'_'.$cnum);
171: }
172: }
173: }
174: }
175: } else {
176: $output = &mt('No change');
177: }
178: } else {
179: $errormsg = &mt('Information about current external resource is incomplete.');
180: }
181: if ($updated) {
182: return ($updated,$output,$errormsg,$residx,$newurl,$newtitle,$symb);
183: } else {
184: return ($updated,$output,$errormsg,$residx,$oldurl,$oldtitle,$symb);
185: }
186: }
187:
188: sub extedit_form {
189: my ($supplementalflag,$residx,$orig_url,$orig_title,$pathitem,$helpitem,$caller,$symb) = @_;
190: my %lt = &Apache::lonlocal::texthash(
191: ex => 'External Resource',
192: ed => 'Edit',
193: ee => 'External Resource Editor',
194: pr => 'Preview',
195: sv => 'Save',
196: ul => 'URL',
197: ti => 'Title',
198: al => 'Add Link',
199: );
200: my $formname = 'newext';
201: my $tabid = 'aa';
202: my $toggle = 'ext';
203: my $fieldsetid = 'uploadextform';
204: my $urlid = 'exturl';
205: my $size = 60;
206: if ($supplementalflag) {
207: $formname = 'newsuppext';
208: $tabid = 'ee';
209: $toggle = 'suppext';
210: $fieldsetid = 'uploadsuppextform';
211: $urlid = 'suppexturl';
212: }
213: my ($link,$legend,$active,$srcclass,$extsrc,$preview,$title,$save,
1.3 raeburn 214: $fieldsetstyle,$action,$hiddenelem,$form);
1.1 raeburn 215: $fieldsetstyle = 'display: none;';
216: $action = '/adm/coursedocs';
217: if ($residx) {
218: if ($caller eq 'direct') {
219: $fieldsetstyle = 'display: block;';
220: $action = '/adm/extresedit';
221: $legend = "<legend>$lt{'ee'}</legend>";
222: if ($symb) {
223: $hiddenelem = '<input type="hidden" name="symb" value="'.$symb.'" />';
224: } elsif ($supplementalflag) {
225: $hiddenelem = '<input type="hidden" name="suppurl" value="'.
226: &HTML::Entities::encode(&escape($orig_url),'<>&"').'" />'."\n".
227: '<input type="hidden" name="title" value="'.
228: &HTML::Entities::encode(&escape($orig_title),'<>&"').'" />';
229: }
230: } else {
1.3 raeburn 231: $link = '<a class="LC_docs_ext_edit" href="javascript:editext('."'$residx'".');">'.$lt{'ed'}.'</a> '."\n";
1.1 raeburn 232: $size = 40;
1.3 raeburn 233: $active = '<input type="hidden" name="active" value="'.$tabid.'" />';
1.1 raeburn 234: }
235: $formname = "editext_$residx";
236: $fieldsetid = "uploadext$residx";
237: $urlid = "exturl_$residx";
238: $srcclass = ' class="LC_nobreak"';
239: $extsrc = '<span class="LC_docs_ext_edit">'.$lt{'ul'}.' </span>';
240: $preview = ' <a class="LC_docs_ext_edit" href="javascript:extUrlPreview('."'$urlid'".');">'.$lt{'pr'}.'</a>';
241: $title = '<span class="LC_docs_ext_edit">'.$lt{'ti'}.' </span>';
242: $save = $lt{'sv'};
243: } else {
244: $link = '<a class="LC_menubuttons_link" href="javascript:toggleUpload('."'$toggle'".');">'.$lt{'ex'}.'</a>'.$helpitem;
245: $legend = "<legend>$lt{'ex'}</legend>";
246: $extsrc = $lt{'ul'}.':<br />';
247: $title = $lt{'ti'}.':<br />';
248: $residx = 0;
249: $orig_url = 'http://';
250: $orig_title = $lt{'ex'};
251: $preview = '<input type="button" name="view" value="'.$lt{'pr'}.'" onclick="javascript:extUrlPreview('."'$urlid'".');" />';
252: $save = $lt{'al'};
253: $pathitem .= '<br />';
254: }
1.3 raeburn 255: $form = <<ENDFORM;
1.1 raeburn 256: <form action="$action" method="post" name="$formname">
1.2 raeburn 257: <fieldset id="$fieldsetid" style="$fieldsetstyle">
1.1 raeburn 258: $legend
259: $active
260: <span$srcclass>
261: $extsrc
262: <input type="text" size="$size" name="exturl" id="$urlid" value="$orig_url" />
263: $preview
264: </span>
265: <br />
266: <span$srcclass>
267: $title
268: <input type="text" size="$size" name="exttitle" value="$orig_title" />
269: <input type="hidden" name="importdetail" value="" />
270: $pathitem
271: $hiddenelem
272: <input type="button" value="$save" onclick="javascript:setExternal(this.form,'$residx');" />
273: </span>
274: </fieldset>
275: </form>
276: ENDFORM
1.3 raeburn 277: if (wantarray) {
278: return ($link,$form);
279: } else {
280: return $link.$form;
281: }
1.1 raeburn 282: }
283:
284: sub display_editor {
285: my ($url,$folderpath,$symb,$idx) = @_;
286: my ($residx,$supplementalflag,$title,$pathitem,$output);
287: if ($folderpath =~ /^supplemental/) {
288: $supplementalflag = 1;
289: $residx = $idx;
290: $title = &unescape($env{'form.title'});
291: $pathitem = '<input type="hidden" name="folderpath" value="'.&HTML::Entities::encode($folderpath,'<>&"').'" />';
292: } elsif ($symb =~ /^uploaded/) {
293: (my $map,$residx,my $res) =
294: &Apache::lonnet::decode_symb($symb);
295: $title = &Apache::lonnet::gettitle($symb);
296: my $path = &Apache::lonnet::getdocspath($symb);
1.4 ! raeburn 297: $pathitem = '<input type="hidden" name="folderpath" value="'.&HTML::Entities::encode($path,'<>&"').'" />';
1.1 raeburn 298: }
299: my $js = &Apache::lonhtmlcommon::scripttag(&extedit_javascript());
300: my $args = { 'force_register' => $env{'form.register'} };
301: return &Apache::loncommon::start_page('External Resource Editor',$js,$args).
302: '<div class="LC_left_float">'.
303: &extedit_form($supplementalflag,$residx,$url,$title,$pathitem,undef,'direct',$symb).
304: '</div>'.
305: &Apache::loncommon::end_page();
306: }
307:
308: sub extedit_javascript {
309: my %lt = &Apache::lonlocal::texthash(
310: invurl => 'Invalid URL',
311: titbl => 'Title is blank',
312: );
313:
314: my $urlregexp = <<'ENDREGEXP';
315: /^([a-z]([a-z]|\d|\+|-|\.)*):(\/\/(((([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(%[\da-f]{2})|[!\$&'\(\)\*\+,;=]|:)*@)?((\[(|(v[\da-f]{1,}\.(([a-z]|\d|-|\.|_|~)|[!\$&'\(\)\*\+,;=]|:)+))\])|((\d|[1-9]\d|1\d\d|2[0-4]\d|25[0-5])\.(\d|[1-9]\d|1\d\d|2[0-4]\d|25[0-5])\.(\d|[1-9]\d|1\d\d|2[0-4]\d|25[0-5])\.(\d|[1-9]\d|1\d\d|2[0-4]\d|25[0-5]))|(([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(%[\da-f]{2})|[!\$&'\(\)\*\+,;=])*)(:\d*)?)(\/(([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(%[\da-f]{2})|[!\$&'\(\)\*\+,;=]|:|@)*)*|(\/((([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(%[\da-f]{2})|[!\$&'\(\)\*\+,;=]|:|@)+(\/(([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(%[\da-f]{2})|[!\$&'\(\)\*\+,;=]|:|@)*)*)?)|((([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(%[\da-f]{2})|[!\$&'\(\)\*\+,;=]|:|@)+(\/(([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(%[\da-f]{2})|[!\$&'\(\)\*\+,;=]|:|@)*)*)|((([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(%[\da-f]{2})|[!\$&'\(\)\*\+,;=]|:|@)){0})(\?((([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(%[\da-f]{2})|[!\$&'\(\)\*\+,;=]|:|@)|[\uE000-\uF8FF]|\/|\?)*)?(\#((([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(%[\da-f]{2})|[!\$&'\(\)\*\+,;=]|:|@)|\/|\?)*)?$/i
316: ENDREGEXP
317:
318: return <<ENDJS;
319:
320: var regexp = $urlregexp;
321:
322: function setExternal(extform,residx) {
323: var title=extform.exttitle.value;
324: if (!String.trim) {
325: String.prototype.trim = function() {return this.replace(\/^\\s+|\\s+$\/g, "");}; }
326: var url=extform.exturl.value;
327: if (title == null || title.trim()=="") {
328: alert("$lt{'titbl'}");
329: extform.exttitle.focus();
330: return;
331: }
332: if (regexp.test(url)) {
333: url = escape(url);
334: if (residx > 0) {
335: eval("extform.importdetail.value=title+'='+url+'='+residx;extform.submit();");
336: } else {
337: eval("extform.importdetail.value=title+'='+url;extform.submit();");
338: }
339: } else {
340: alert("$lt{'invurl'}");
341: extform.exturl.focus();
342: return;
343: }
344: }
345:
346: function editext(residx) {
347: if (document.getElementById('uploadext'+residx)) {
348: var curr = document.getElementById('uploadext'+residx).style.display;
349: if (curr == 'none') {
350: disp = 'block';
351: } else {
352: disp = 'none';
353: }
354: document.getElementById('uploadext'+residx).style.display=disp;
355: }
356: resize_scrollbox('contentscroll','1','1');
357: return;
358: }
359:
360: function extUrlPreview(caller) {
361: if (document.getElementById(caller)) {
362: var url = document.getElementById(caller).value;
363: if (regexp.test(url)) {
364: openMyModal(url,500,400,'yes');
365: } else {
366: alert("$lt{'invurl'}");
367: }
368: }
369: }
370:
371: ENDJS
372:
373: }
374:
375: 1;
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