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moodle/mod/wiki/view.php
tjhunt 38e179a4ed MDL-11741 - Convert core modules to take advantage of recent improvements to build_navigation. 
This check-in removes about 400 lines of code. I hope I have not screwed anything up. I would be grateful if people could review this change, and keep an eye on the navigation bar in modules.

Any navigation bar bugs you find in the near future, feel free to file them in the tracker and assign them to me. Thanks.

If not to many problems are found, I think I would like to backport this to 1.9 stable, but I am not sure that is a good idea. Opinions to the General Developer Forum please. I am about to start a thread there.
2007-10-12 15:55:49 +00:00

498 lines
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<?php // $Id$
/// Extended by Michael Schneider
/// This page prints a particular instance of wiki
global $CFG,$USER;
require_once("../../config.php");
require_once("lib.php");
#require_once("$CFG->dirroot/course/lib.php"); // For side-blocks
require_once($CFG->libdir . '/ajax/ajaxlib.php');
require_js(array('yui_yahoo','yui_connection'));
$ewiki_action = optional_param('ewiki_action', '', PARAM_ALPHA); // Action on Wiki-Page
$id = optional_param('id', 0, PARAM_INT); // Course Module ID, or
$wid = optional_param('wid', 0, PARAM_INT); // Wiki ID
$page = optional_param('page', false); // Wiki Page Name
$q = optional_param('q',""); // Search Context
$userid = optional_param('userid', 0, PARAM_INT); // User wiki.
$groupid = optional_param('groupid', 0, PARAM_INT); // Group wiki.
$canceledit = optional_param('canceledit','', PARAM_ALPHA); // Editing has been cancelled
$cacheme = optional_param('allowcache', 1, PARAM_INT); // Set this to 0 to try and disable page caching.
// Only want to add edit log entries if we have made some changes ie submitted a form
$editsave = optional_param('thankyou', '');
if($page) {
// Split page command into action and page
$actions = explode('/', $page,2);
if(count($actions)==2) {
$pagename=$actions[1];
} else {
$pagename=$actions[0];
}
} else {
$actions=array('');
$pagename='';
}
if ($id) {
if (! $cm = get_coursemodule_from_id('wiki', $id)) {
error("Course Module ID was incorrect");
}
if (! $course = get_record("course", "id", $cm->course)) {
error("Course is misconfigured");
}
if (! $wiki = get_record("wiki", "id", $cm->instance)) {
error("Course module is incorrect");
}
} else {
if (! $wiki = get_record("wiki", "id", $wid)) {
error("Course module is incorrect");
}
if (! $course = get_record("course", "id", $wiki->course)) {
error("Course is misconfigured");
}
if (! $cm = get_coursemodule_from_instance("wiki", $wiki->id, $course->id)) {
error("Course Module ID was incorrect");
}
$id = $cm->id;
$_REQUEST["id"] = $id;
}
require_course_login($course, true, $cm);
/// Add the course module info to the wiki object, for easy access.
$wiki->groupmode = $cm->groupmode;
$wiki->groupingid = $cm->groupingid;
$wiki->groupmembersonly = $cm->groupmembersonly;
$wiki->cmid = $cm->id;
/// Default format:
$moodle_format=FORMAT_MOODLE;
### SAVE ID from Moodle
$moodleID=@$_REQUEST["id"];
/// Globally disable CamelCase, if the option is selected for this wiki.
$moodle_disable_camel_case = ($wiki->disablecamelcase == 1);
if (($wiki_entry = wiki_get_default_entry($wiki, $course, $userid, $groupid))) {
// OK, now we know the entry ID, we can do lock etc.
// If true, we are 'really' on an editing page, not just on edit/something
$reallyedit=$actions[0]=='edit' && !$canceledit && !$editsave;
// Remove lock when we go to another wiki page (such as the cancel page)
if(!$reallyedit) {
wiki_release_lock($wiki_entry->id,$pagename);
} else if(array_key_exists('content',$_POST)) {
// Do not allow blank content because it causes problems (the wiki decides
// the page should automatically go into edit mode, but Moodle doesn't realise
// this and filters out the JS)
if($_POST['content']=='') {
$_POST['content']="\n";
$_REQUEST['content']="\n";
}
// We must have the edit lock in order to be permitted to save
list($ok,$lock)=wiki_obtain_lock($wiki_entry->id,$pagename);
if(!$ok) {
$strsavenolock=get_string('savenolock','wiki');
error($strsavenolock,$CFG->wwwroot.'/mod/wiki/view.php?id='.$cm->id.'&page=view/'.urlencode($pagename));
}
}
/// ################# EWIKI Part ###########################
/// The wiki_entry->pagename is set to the specified value of the wiki,
/// or the default value in the 'lang' file if the specified value was empty.
define("EWIKI_PAGE_INDEX",$wiki_entry->pagename);
/// If the page has a ' in it, it may have slashes added to it. Remove them if it does.
$page = ($page === false) ? stripslashes(EWIKI_PAGE_INDEX) : stripslashes($page);
/// # Prevent ewiki getting id as PageID...
unset($_REQUEST["id"]);
unset($_GET["id"]);
unset($_POST["id"]);
unset($_POST["id"]);
unset($_SERVER["QUERY_STRING"]);
if (isset($HTTP_GET_VARS)) {
unset($HTTP_GET_VARS["id"]);
}
if (isset($HTTP_POST_VARS)) {
unset($HTTP_POST_VARS["id"]);
}
global $ewiki_title;
/// #-- predefine some of the configuration constants
/// EWIKI_NAME is defined in ewikimoodlelibs, so that also admin.php can use this
#define("EWIKI_NAME", $wiki_entry->pagename);
/// Search Hilighting
if($ewiki_title=="SearchPages") {
$qArgument="&amp;q=".urlencode($q);
}
/// Build the ewsiki script constant
/// ewbase will also be needed by EWIKI_SCRIPT_BINARY
$ewbase = 'view.php?id='.$moodleID;
if (isset($userid) && $userid!=0) $ewbase .= '&amp;userid='.$userid;
if (isset($groupid) && $groupid!=0) $ewbase .= '&amp;groupid='.$groupid;
$ewscript = $ewbase.'&amp;page=';
define("EWIKI_SCRIPT", $ewscript);
define("EWIKI_SCRIPT_URL", $ewscript);
/// # Settings for this specific Wiki
define("EWIKI_PRINT_TITLE", $wiki->ewikiprinttitle);
define("EWIKI_INIT_PAGES", wiki_content_dir($wiki));
/// # Moodle always addslashes to everything so we are going to strip them always
/// # to allow wiki itself to add them again. It's a triple add-strip-add but
/// # was the only way to solve the problem without modifying how the rest of
/// # the module works.
include($CFG->dirroot."/mod/wiki/ewiki/fragments/strip_wonderful_slashes.php");
if (ini_get("register_globals")) {
# include($CFG->dirroot."/mod/wiki/ewiki/fragments/strike_register_globals.php");
}
# Database Handler
include_once($CFG->dirroot."/mod/wiki/ewikimoodlelib.php");
# Plugins
//include_once($CFG->dirroot."/mod/wiki/ewiki/plugins/email_protect.php");
include_once($CFG->dirroot."/mod/wiki/ewiki/plugins/patchsaving.php");
include_once($CFG->dirroot."/mod/wiki/ewiki/plugins/notify.php");
include_once($CFG->dirroot."/mod/wiki/ewiki/plugins/feature/imgresize_gd.php");
include_once($CFG->dirroot."/mod/wiki/ewiki/plugins/moodle/moodle_highlight.php");
include_once($CFG->dirroot."/mod/wiki/ewiki/plugins/moodle/f_fixhtml.php");
#include_once($CFG->dirroot."/mod/wiki/ewiki/plugins/moodle/wikinews.php");
include_once($CFG->dirroot."/mod/wiki/ewiki/plugins/moodle/sitemap.php");
include_once($CFG->dirroot."/mod/wiki/ewiki/plugins/moodle/moodle_wikidump.php");
include_once($CFG->dirroot."/mod/wiki/ewiki/plugins/aview/backlinks.php");
#include_once($CFG->dirroot."/mod/wiki/ewiki/plugins/markup/css.php");
include_once($CFG->dirroot."/mod/wiki/ewiki/plugins/markup/footnotes.php");
include_once($CFG->dirroot."/mod/wiki/ewiki/plugins/moodle/diff.php");
include_once($CFG->dirroot."/mod/wiki/ewiki/plugins/page/pageindex.php");
include_once($CFG->dirroot."/mod/wiki/ewiki/plugins/page/orphanedpages.php");
include_once($CFG->dirroot."/mod/wiki/ewiki/plugins/moodle/wantedpages.php");
# Binary Handling
if($wiki->ewikiacceptbinary) {
define("EWIKI_UPLOAD_MAXSIZE", get_max_upload_file_size());
define("EWIKI_SCRIPT_BINARY", $ewbase."&binary=");
define("EWIKI_ALLOW_BINARY",1);
define("EWIKI_IMAGE_CACHING",1);
#define("EWIKI_AUTOVIEW",1);
include_once($CFG->dirroot."/mod/wiki/ewiki/plugins/lib/mime_magic.php");
include_once($CFG->dirroot."/mod/wiki/ewiki/plugins/aview/downloads.php");
include_once($CFG->dirroot."/mod/wiki/ewiki/plugins/moodle/downloads.php");
#include_once($CFG->dirroot."/mod/wiki/ewiki/plugins/db/binary_store.php");
include_once($CFG->dirroot."/mod/wiki/ewiki/plugins/moodle/moodle_binary_store.php");
} else {
define("EWIKI_SCRIPT_BINARY", 0);
define("EWIKI_ALLOW_BINARY",0);
}
# The mighty Wiki itself
include_once($CFG->dirroot."/mod/wiki/ewiki/ewiki.php");
if($canceledit) {
if ($delim = strpos($page, EWIKI_ACTION_SEP_CHAR)) {
@$page = substr($page, $delim + 1);
} else {
@$page="";
}
}
# Language-stuff: eWiki gets language from Browser. Lets correct it. Empty arrayelements do no harm
$ewiki_t["languages"]=array(current_language(), $course->lang, $CFG->lang,"en","c");
# Check Access Rights
$canedit = wiki_can_edit_entry($wiki_entry, $wiki, $USER, $course);
if (!$canedit) {
# Protected Mode
unset($ewiki_plugins["action"]["edit"]);
unset($ewiki_plugins["action"]["info"]);
}
# HTML Handling
$ewiki_use_editor=0;
if($wiki->htmlmode == 0) {
# No HTML
$ewiki_config["htmlentities"]=array(); // HTML is managed by moodle
$moodle_format=FORMAT_TEXT;
}
if($wiki->htmlmode == 1) {
# Safe HTML
include_once($CFG->dirroot."/mod/wiki/ewiki/plugins/moodle/moodle_rescue_html.php");
$moodle_format=FORMAT_HTML;
}
if($wiki->htmlmode == 2) {
# HTML Only
$moodle_format=FORMAT_HTML;
$ewiki_use_editor=1;
$ewiki_config["htmlentities"]=array(); // HTML is allowed
$ewiki_config["wiki_link_regex"] = "\007 [!~]?(
\#?\[[^<>\[\]\n]+\] |
\^[-".EWIKI_CHARS_U.EWIKI_CHARS_L."]{3,} |
\b([\w]{3,}:)*([".EWIKI_CHARS_U."]+[".EWIKI_CHARS_L."]+){2,}\#?[\w\d]* |
\w[-_.+\w]+@(\w[-_\w]+[.])+\w{2,} ) \007x";
}
global $ewiki_author, $USER;
$ewiki_author=fullname($USER);
$content=ewiki_page($page);
$content2='';
### RESTORE ID from Moodle
$_REQUEST["id"]=$moodleID;
$id=$moodleID;
/// ################# EWIKI Part ###########################
}
else {
$content = '';
$content2 = '<div class="boxaligncenter">'.get_string('nowikicreated', 'wiki').'</div>';
}
# Group wiki, ...: No page and no ewiki_title
if(!isset($ewiki_title)) {
$ewiki_title="";
}
/// Moodle Log
if ($editsave != NULL) { /// We've submitted an edit and have been redirected back here
add_to_log($course->id, "wiki", 'edit',
addslashes("view.php?id=$cm->id&amp;groupid=$groupid&amp;userid=$userid&amp;page=$ewiki_title"),
format_string($wiki->name,true).": ".$ewiki_title, $cm->id, $userid);
} else if ($ewiki_action != 'edit') {
add_to_log($course->id, "wiki", $ewiki_action,
addslashes("view.php?id=$cm->id&amp;groupid=$groupid&amp;userid=$userid&amp;page=$ewiki_title"),
format_string($wiki->name,true).": ".$ewiki_title, $cm->id, $userid);
}
/// Print the page header
$strwikis = get_string("modulenameplural", "wiki");
$strwiki = get_string("modulename", "wiki");
$navigation = build_navigation('', $cm);
print_header_simple($ewiki_title?$ewiki_title:format_string($wiki->name), "", $navigation,
"", "", $cacheme, update_module_button($cm->id, $course->id, $strwiki),
navmenu($course, $cm));
/// Print Page
echo ' <div id="wikiPageActions">
';
/// The top row contains links to other wikis, if applicable.
if ($wiki_entry && $wiki_list = wiki_get_other_wikis($wiki, $USER, $course, $wiki_entry->id)) {
//echo "wiki list ";print_r($wiki_list);
$selected="";
if (isset($wiki_list['selected'])) {
$selected = $wiki_list['selected'];
unset($wiki_list['selected']);
}
echo '<tr><td colspan="2">';
echo '<form id="otherwikis" action="'.$CFG->wwwroot.'/mod/wiki/view.php">';
echo '<table border="0" cellpadding="0" cellspacing="0" width="100%"><tr>';
echo '<td class="sideblockheading">&nbsp;'
.$WIKI_TYPES[$wiki->wtype].' '
.get_string('modulename', 'wiki')." ".get_string('for',"wiki")." "
.wiki_get_owner($wiki_entry).':</td>';
echo '<td class="sideblockheading">'
.get_string('otherwikis', 'wiki').':&nbsp;&nbsp;';
$script = 'self.location=getElementById(\'otherwikis\').wikiselect.options[getElementById(\'otherwikis\').wikiselect.selectedIndex].value';
choose_from_menu($wiki_list, "wikiselect", $selected, "choose", $script);
echo '</td>';
echo '</tr></table>';
echo '</form>';
echo '</td>';
echo '</tr>';
}
if ($wiki_entry) {
$specialpages=array("WikiExport", "SiteMap", "SearchPages", "PageIndex","NewestPages","MostVisitedPages","MostOftenChangedPages","UpdatedPages","FileDownload","FileUpload","OrphanedPages","WantedPages");
/// Page Actions
echo '<table border="0" width="100%">';
echo '<tr>';
/// Searchform
echo '<td class="wikisearchform">';
wiki_print_search_form($cm->id, $q, $userid, $groupid, false);
echo '</td>';
/// Internal Wikilinks
echo '<td class="wikilinksblock">';
wiki_print_wikilinks_block($cm->id, $wiki->ewikiacceptbinary);
echo '</td>';
/// Administrative Links
if($canedit) {
echo '<td class="wikiadminactions">';
wiki_print_administration_actions($wiki, $cm->id, $userid, $groupid, $ewiki_title, $wiki->htmlmode!=2, $course);
echo '</td>';
}
/// Formatting Rules
echo '<td class="howtowiki">';
helpbutton('howtowiki', get_string('howtowiki', 'wiki'), 'wiki');
echo '</td>';
echo '</tr></table>';
}
echo '</div>
<div id="wiki-view" class="mwiki">
';
if($wiki_entry && $ewiki_title==$wiki_entry->pagename && !empty($wiki->summary)) {
if (trim(strip_tags($wiki->summary))) {
print_box(format_text($wiki->summary, FORMAT_MOODLE), 'generalbox', 'intro');
}
}
// The wiki Contents
if (!empty($canedit)) { /// Print tabs with commands for this page
$tabs = array('view', 'edit','links','info');
if ($wiki->ewikiacceptbinary) {
$tabs[] = 'attachments';
}
$tabrows = array();
$row = array();
$currenttab = '';
foreach ($tabs as $tab) {
$tabname = get_string("tab$tab", 'wiki');
$row[] = new tabobject($tabname, $ewbase.'&amp;page='.$tab.'/'.$ewiki_id, $tabname);
if ($ewiki_action == "$tab" or in_array($page, $specialpages)) {
$currenttab = $tabname;
}
}
$tabrows[] = $row;
print_tabs($tabrows, $currenttab);
}
/// Insert a link to force page refresh if new content isn't showing.
// build new URL + query string
$queries = preg_split('/[?&]/', me());
$nqueries = count($queries);
$me = $queries[0] . '?';
for($i=1; $i < $nqueries; $i++)
{
if( !strstr($queries[$i], 'allowcache') )
$me .= $queries[$i] . '&amp;';
}
$me .= 'allowcache=0';
// Insert the link
$linkdesc = get_string('reloadlinkdescription', 'wiki');
$linktext = get_string('reloadlinktext', 'wiki');
echo "<div class='wikilinkright'><a href='$me' title='$linkdesc'><input type='button' value='$linktext' /></a></div>";
print_simple_box_start('center', '100%', '', '20');
/// Don't filter any pages containing wiki actions (except view). A wiki page containing
/// actions will have the form [action]/[pagename]. If the action is 'view' or the '/'
/// isn't there (so the action defaults to 'view'), filter it.
/// If the page does not yet exist, the display will default to 'edit'.
if((count($actions) < 2 || $actions[0] == "view") && $wiki_entry &&
record_exists('wiki_pages', 'pagename', addslashes($page), 'wiki', $wiki_entry->id)) {
print(format_text($content, $moodle_format));
} else if($actions[0]=='edit' && $reallyedit) {
// Check the page isn't locked before printing out standard wiki content. (Locking
// is implemented as a wrapper over the existing wiki.)
list($gotlock,$lock)=wiki_obtain_lock($wiki_entry->id,$pagename);
if(!$gotlock) {
$modcontext = get_context_instance(CONTEXT_MODULE, $cm->id);
$canoverridelock = has_capability('mod/wiki:overridelock', $modcontext);
$a=new stdClass;
$a->since=userdate($lock->lockedsince);
$a->seen=userdate($lock->lockedseen);
$user=get_record('user','id',$lock->lockedby);
$a->name=fullname($user,
has_capability('moodle/site:viewfullnames', $modcontext));
print_string('pagelocked','wiki',$a);
if($canoverridelock) {
$pageesc=htmlspecialchars($page);
$stroverrideinfo=get_string('overrideinfo','wiki');
$stroverridebutton=get_string('overridebutton','wiki');
$sesskey=sesskey();
print "
<form id='overridelock' method='post' action='overridelock.php'>
<div>
<input type='hidden' name='sesskey' value='$sesskey' />
<input type='hidden' name='id' value='$id' />
<input type='hidden' name='page' value='$pageesc' />
$stroverrideinfo
<input type='submit' value='$stroverridebutton' />
</div>
</form>
";
}
} else {
if (ajaxenabled()) {
// OK, the page is now locked to us. Put in the AJAX for keeping the lock
$strlockcancelled=get_string('lockcancelled','wiki');
$strnojslockwarning=get_string('nojslockwarning','wiki');
$intervalms=WIKI_LOCK_RECONFIRM*1000;
print "
<script type='text/javascript'>
var intervalID;
function handleResponse(o) {
if(o.responseText=='cancel') {
document.forms['ewiki'].elements['preview'].disabled=true;
document.forms['ewiki'].elements['save'].disabled=true;
clearInterval(intervalID);
alert('$strlockcancelled');
}
}
function handleFailure(o) {
// Ignore for now
}
intervalID=setInterval(function() {
YAHOO.util.Connect.asyncRequest('POST','confirmlock.php',
{success:handleResponse,failure:handleFailure},'lockid={$lock->id}');
},$intervalms);
</script>
<noscript><p>
$strnojslockwarning
</p></noscript>
";
}
// Print editor etc
print $content;
}
} else {
print $content;
}
print $content2;
print_simple_box_end();
echo "<br />";
/// Finish the page
echo '
</div>
';
print_footer($course);
?>
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