Annotation of loncom/interface/lonextresedit.pm, revision 1.6
1.1 raeburn 1: # The LearningOnline Network
2: # Documents
3: #
1.6 ! raeburn 4: # $Id: lonextresedit.pm,v 1.5 2013/02/13 04:41:35 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);
1.5 raeburn 60: if (($env{'form.folderpath'} =~ /^supplemental/) && ($env{'form.suppurl'})) {
61: $supplementalflag = 1;
62: }
63: if (($supplementalflag) || ($env{'form.symb'} =~ /^uploaded/)) {
1.1 raeburn 64: ($updated,$output,$errormsg,$residx,$url,$title,$symb) =
65: &process_changes($supplementalflag,$cdom,$cnum,$chome);
66: if ($supplementalflag) {
67: if ($url ne $env{'form.suppurl'}) {
68: $env{'form.suppurl'} = $url;
69: }
70: if ($title ne $env{'form.title'}) {
71: $env{'form.title'} = $title;
72: }
1.5 raeburn 73: $env{'form.idx'} = $residx;
1.1 raeburn 74: } else {
75: if ($symb ne $env{'form.symb'}) {
76: $env{'form.symb'} = $symb;
77: }
78: }
79: } else {
80: $errormsg = &mt('Information about external resource to edit is missing.');
81: }
82: if ($updated) {
83: $output = &Apache::lonhtmlcommon::confirm_success(&mt('External Resource updated'));
84: }
85: if ($errormsg) {
86: $errormsg = '<p class="LC_error">'.$errormsg.'</p>';
87: }
88: my $js = &Apache::lonhtmlcommon::scripttag(&extedit_javascript());
89: my $pathitem = '<input type="hidden" name="folderpath" value="'.
90: &HTML::Entities::encode($env{'form.folderpath'},'<>&"').'" />';
91: $r->print(&Apache::loncommon::start_page('External Resource Editor',$js).
92: '<div class="LC_left_float">'.
93: $output.
94: $errormsg.
95: &extedit_form($supplementalflag,$residx,$url,$title,$pathitem,undef,
96: 'direct',$env{'form.symb'}).
97: '</div>'.&Apache::loncommon::end_page());
98: return OK;
99: }
100:
101: sub process_changes {
102: my ($supplementalflag,$cdom,$cnum,$chome) = @_;
103: my ($folder,$container,$output,$errormsg,$updated,$symb,$oldidx,$oldurl,
1.5 raeburn 104: $oldtitle,$newidx,$newurl,$newtitle,$residx,$url,$title);
1.1 raeburn 105: if ($env{'form.symb'}) {
106: $symb = $env{'form.symb'};
1.5 raeburn 107: (my $map,$oldidx,$oldurl)=&Apache::lonnet::decode_symb($symb);
1.1 raeburn 108: if ($map =~ m{^uploaded/$cdom/$cnum/(default(_\d+|))\.(sequence|page)$}) {
109: $folder = $1;
110: $container = $3;
111: }
112: $oldtitle = &Apache::lonnet::gettitle($env{'form.symb'});
113: } elsif ($env{'form.folderpath'}) {
114: $folder = &unescape( (split('&',$env{'form.folderpath'}))[-2] );
115: $oldurl = &unescape($env{'form.suppurl'});
116: $oldtitle = &unescape($env{'form.title'});
117: $container = 'sequence';
118: $supplementalflag = 1;
119: }
1.5 raeburn 120: if ($oldurl =~ m{^ext/(.+)$}) {
121: my $external = $1;
122: if ($external =~ m{^https://}) {
123: $oldurl = $external;
124: } else {
125: $oldurl = 'http://'.$oldurl;
126: }
127: }
128: $url = $oldurl;
129: $title = $oldtitle;
130: if ($env{'form.importdetail'}) {
131: ($newtitle,$newurl,$newidx) =
132: map {&unescape($_)} split(/\=/,$env{'form.importdetail'});
133: }
134: if ($supplementalflag) {
135: $residx = $newidx;
136: } else {
137: $residx = $oldidx;
138: }
1.1 raeburn 139: if ($folder && $container) {
140: if ($env{'form.importdetail'}) {
1.5 raeburn 141: my ($errtext,$fatal,$mismatchedid,@imports);
142: if (!$supplementalflag) {
143: if (($oldidx) && ($oldidx != $newidx)) {
144: $mismatchedid = 1;
145: }
1.1 raeburn 146: }
147: if ($mismatchedid) {
148: $errormsg = 'Wrong item identifier';
149: } elsif (($newtitle eq $oldtitle) && ($newurl eq $oldurl)) {
150: $output = &mt('No change');
151: } else {
152: my $map = "/uploaded/$cdom/$cnum/$folder.$container";
153: my ($errtext,$fatal) = &LONCAPA::map::mapread($map);
154: if ($fatal) {
155: $errormsg = &mt('Update failed: [_1].',$errtext);
156: } else {
157: my $saveurl = &LONCAPA::map::qtunescape($newurl);
158: my $savetitle = &LONCAPA::map::qtunescape($newtitle);
159: $LONCAPA::map::resources[$residx] =
160: join(':', ($savetitle,$saveurl,'true','normal','res'));
161: my ($outtext,$errtext) = &LONCAPA::map::storemap($map,1);
162: if ($errtext) {
163: $errormsg = &mt('Update failed: [_1].',$errtext);
164: } else {
165: $updated = 1;
1.5 raeburn 166: $title = $newtitle;
167: if ($newurl ne $oldurl) {
168: $url = $newurl;
169: $newurl =~ s{^http://}{};
170: $newurl = "ext/$newurl";
171: }
1.1 raeburn 172: if (!$supplementalflag) {
173: if ($newurl ne $oldurl) {
1.5 raeburn 174: $symb = &Apache::lonnet::encode_symb($map,$residx,$newurl);
1.1 raeburn 175: } else {
176: $symb = $env{'form.symb'};
177: if ($symb) {
178: &Apache::lonnet::devalidate_title_cache($symb);
179: }
180: }
181: }
1.5 raeburn 182: my ($furl,$ferr) =
183: &Apache::lonuserstate::readmap("$cdom/$cnum");
1.1 raeburn 184: if ($ferr) {
185: $errormsg = &mt('Reload failed: [_1].',$ferr);
186: } else {
1.5 raeburn 187: unless ($supplementalflag) {
188: &Apache::loncommon::update_content_constraints($cdom,$cnum,$chome,$cdom.'_'.$cnum);
189: }
1.1 raeburn 190: }
191: }
192: }
193: }
194: } else {
195: $output = &mt('No change');
196: }
197: } else {
198: $errormsg = &mt('Information about current external resource is incomplete.');
199: }
1.5 raeburn 200: return ($updated,$output,$errormsg,$residx,$url,$title,$symb);
1.1 raeburn 201: }
202:
203: sub extedit_form {
204: my ($supplementalflag,$residx,$orig_url,$orig_title,$pathitem,$helpitem,$caller,$symb) = @_;
205: my %lt = &Apache::lonlocal::texthash(
206: ex => 'External Resource',
207: ed => 'Edit',
208: ee => 'External Resource Editor',
209: pr => 'Preview',
210: sv => 'Save',
211: ul => 'URL',
212: ti => 'Title',
213: al => 'Add Link',
214: );
215: my $formname = 'newext';
216: my $tabid = 'aa';
217: my $toggle = 'ext';
218: my $fieldsetid = 'uploadextform';
219: my $urlid = 'exturl';
220: my $size = 60;
221: if ($supplementalflag) {
222: $formname = 'newsuppext';
223: $tabid = 'ee';
224: $toggle = 'suppext';
225: $fieldsetid = 'uploadsuppextform';
226: $urlid = 'suppexturl';
227: }
228: my ($link,$legend,$active,$srcclass,$extsrc,$preview,$title,$save,
1.3 raeburn 229: $fieldsetstyle,$action,$hiddenelem,$form);
1.1 raeburn 230: $fieldsetstyle = 'display: none;';
231: $action = '/adm/coursedocs';
232: if ($residx) {
233: if ($caller eq 'direct') {
234: $fieldsetstyle = 'display: block;';
235: $action = '/adm/extresedit';
236: $legend = "<legend>$lt{'ee'}</legend>";
237: if ($symb) {
238: $hiddenelem = '<input type="hidden" name="symb" value="'.$symb.'" />';
239: } elsif ($supplementalflag) {
240: $hiddenelem = '<input type="hidden" name="suppurl" value="'.
241: &HTML::Entities::encode(&escape($orig_url),'<>&"').'" />'."\n".
242: '<input type="hidden" name="title" value="'.
243: &HTML::Entities::encode(&escape($orig_title),'<>&"').'" />';
244: }
245: } else {
1.3 raeburn 246: $link = '<a class="LC_docs_ext_edit" href="javascript:editext('."'$residx'".');">'.$lt{'ed'}.'</a> '."\n";
1.1 raeburn 247: $size = 40;
1.3 raeburn 248: $active = '<input type="hidden" name="active" value="'.$tabid.'" />';
1.1 raeburn 249: }
250: $formname = "editext_$residx";
251: $fieldsetid = "uploadext$residx";
252: $urlid = "exturl_$residx";
253: $srcclass = ' class="LC_nobreak"';
254: $extsrc = '<span class="LC_docs_ext_edit">'.$lt{'ul'}.' </span>';
255: $preview = ' <a class="LC_docs_ext_edit" href="javascript:extUrlPreview('."'$urlid'".');">'.$lt{'pr'}.'</a>';
256: $title = '<span class="LC_docs_ext_edit">'.$lt{'ti'}.' </span>';
257: $save = $lt{'sv'};
258: } else {
259: $link = '<a class="LC_menubuttons_link" href="javascript:toggleUpload('."'$toggle'".');">'.$lt{'ex'}.'</a>'.$helpitem;
260: $legend = "<legend>$lt{'ex'}</legend>";
261: $extsrc = $lt{'ul'}.':<br />';
262: $title = $lt{'ti'}.':<br />';
263: $residx = 0;
264: $orig_url = 'http://';
265: $orig_title = $lt{'ex'};
266: $preview = '<input type="button" name="view" value="'.$lt{'pr'}.'" onclick="javascript:extUrlPreview('."'$urlid'".');" />';
267: $save = $lt{'al'};
268: $pathitem .= '<br />';
269: }
1.3 raeburn 270: $form = <<ENDFORM;
1.1 raeburn 271: <form action="$action" method="post" name="$formname">
1.2 raeburn 272: <fieldset id="$fieldsetid" style="$fieldsetstyle">
1.1 raeburn 273: $legend
274: $active
275: <span$srcclass>
276: $extsrc
277: <input type="text" size="$size" name="exturl" id="$urlid" value="$orig_url" />
278: $preview
279: </span>
280: <br />
281: <span$srcclass>
282: $title
283: <input type="text" size="$size" name="exttitle" value="$orig_title" />
284: <input type="hidden" name="importdetail" value="" />
285: $pathitem
286: $hiddenelem
287: <input type="button" value="$save" onclick="javascript:setExternal(this.form,'$residx');" />
288: </span>
289: </fieldset>
290: </form>
291: ENDFORM
1.3 raeburn 292: if (wantarray) {
293: return ($link,$form);
294: } else {
295: return $link.$form;
296: }
1.1 raeburn 297: }
298:
299: sub display_editor {
300: my ($url,$folderpath,$symb,$idx) = @_;
301: my ($residx,$supplementalflag,$title,$pathitem,$output);
302: if ($folderpath =~ /^supplemental/) {
303: $supplementalflag = 1;
304: $residx = $idx;
305: $title = &unescape($env{'form.title'});
306: $pathitem = '<input type="hidden" name="folderpath" value="'.&HTML::Entities::encode($folderpath,'<>&"').'" />';
307: } elsif ($symb =~ /^uploaded/) {
308: (my $map,$residx,my $res) =
309: &Apache::lonnet::decode_symb($symb);
310: $title = &Apache::lonnet::gettitle($symb);
1.6 ! raeburn 311: my $path = &Apache::loncommon::symb_to_docspath($symb);
1.4 raeburn 312: $pathitem = '<input type="hidden" name="folderpath" value="'.&HTML::Entities::encode($path,'<>&"').'" />';
1.1 raeburn 313: }
314: my $js = &Apache::lonhtmlcommon::scripttag(&extedit_javascript());
315: my $args = { 'force_register' => $env{'form.register'} };
316: return &Apache::loncommon::start_page('External Resource Editor',$js,$args).
317: '<div class="LC_left_float">'.
318: &extedit_form($supplementalflag,$residx,$url,$title,$pathitem,undef,'direct',$symb).
319: '</div>'.
320: &Apache::loncommon::end_page();
321: }
322:
323: sub extedit_javascript {
324: my %lt = &Apache::lonlocal::texthash(
325: invurl => 'Invalid URL',
326: titbl => 'Title is blank',
327: );
328:
329: my $urlregexp = <<'ENDREGEXP';
330: /^([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
331: ENDREGEXP
332:
333: return <<ENDJS;
334:
335: var regexp = $urlregexp;
336:
337: function setExternal(extform,residx) {
338: var title=extform.exttitle.value;
339: if (!String.trim) {
340: String.prototype.trim = function() {return this.replace(\/^\\s+|\\s+$\/g, "");}; }
341: var url=extform.exturl.value;
342: if (title == null || title.trim()=="") {
343: alert("$lt{'titbl'}");
344: extform.exttitle.focus();
345: return;
346: }
347: if (regexp.test(url)) {
348: url = escape(url);
349: if (residx > 0) {
350: eval("extform.importdetail.value=title+'='+url+'='+residx;extform.submit();");
351: } else {
352: eval("extform.importdetail.value=title+'='+url;extform.submit();");
353: }
354: } else {
355: alert("$lt{'invurl'}");
356: extform.exturl.focus();
357: return;
358: }
359: }
360:
361: function editext(residx) {
362: if (document.getElementById('uploadext'+residx)) {
363: var curr = document.getElementById('uploadext'+residx).style.display;
364: if (curr == 'none') {
365: disp = 'block';
366: } else {
367: disp = 'none';
368: }
369: document.getElementById('uploadext'+residx).style.display=disp;
370: }
371: resize_scrollbox('contentscroll','1','1');
372: return;
373: }
374:
375: function extUrlPreview(caller) {
376: if (document.getElementById(caller)) {
377: var url = document.getElementById(caller).value;
378: if (regexp.test(url)) {
379: openMyModal(url,500,400,'yes');
380: } else {
381: alert("$lt{'invurl'}");
382: }
383: }
384: }
385:
386: ENDJS
387:
388: }
389:
390: 1;
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