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819 lines (706 loc) · 21.7 KB
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<?php
/**
* DokuWiki Actions
*
* @license GPL 2 (http://www.gnu.org/licenses/gpl.html)
* @author Andreas Gohr <andi@splitbrain.org>
*/
if(!defined('DOKU_INC')) die('meh.');
/**
* Call the needed action handlers
*
* @author Andreas Gohr <andi@splitbrain.org>
* @triggers ACTION_ACT_PREPROCESS
* @triggers ACTION_HEADERS_SEND
*/
function act_dispatch(){
global $ACT;
global $ID;
global $INFO;
global $QUERY;
global $INPUT;
global $lang;
global $conf;
$preact = $ACT;
// give plugins an opportunity to process the action
$evt = new Doku_Event('ACTION_ACT_PREPROCESS',$ACT);
if ($evt->advise_before()) {
//sanitize $ACT
$ACT = act_validate($ACT);
//check if searchword was given - else just show
$s = cleanID($QUERY);
if($ACT == 'search' && empty($s)){
$ACT = 'show';
}
//login stuff
if(in_array($ACT,array('login','logout'))){
$ACT = act_auth($ACT);
}
//check if user is asking to (un)subscribe a page
if($ACT == 'subscribe') {
try {
$ACT = act_subscription($ACT);
} catch (Exception $e) {
msg($e->getMessage(), -1);
}
}
//display some info
if($ACT == 'check'){
check();
$ACT = 'show';
}
//check permissions
$ACT = act_permcheck($ACT);
//sitemap
if ($ACT == 'sitemap'){
act_sitemap($ACT);
}
//recent changes
if ($ACT == 'recent'){
$show_changes = $INPUT->str('show_changes');
if (!empty($show_changes)) {
set_doku_pref('show_changes', $show_changes);
}
}
//diff
if ($ACT == 'diff'){
$difftype = $INPUT->str('difftype');
if (!empty($difftype)) {
set_doku_pref('difftype', $difftype);
}
}
//register
if($ACT == 'register' && $INPUT->post->bool('save') && register()){
$ACT = 'login';
}
if ($ACT == 'resendpwd' && act_resendpwd()) {
$ACT = 'login';
}
<
8000
div id="LC94" class="react-file-line html-div" data-testid="code-cell" data-line-number="94" style="position:relative">
// user profile changes
if (in_array($ACT, array('profile','profile_delete'))) {
if(!$_SERVER['REMOTE_USER']) {
$ACT = 'login';
} else {
switch ($ACT) {
case 'profile' :
if(updateprofile()) {
msg($lang['profchanged'],1);
$ACT = 'show';
}
break;
case 'profile_delete' :
if(auth_deleteprofile()){
msg($lang['profdeleted'],1);
$ACT = 'show';
} else {
$ACT = 'profile';
}
break;
}
}
}
//revert
if($ACT == 'revert'){
if(checkSecurityToken()){
$ACT = act_revert($ACT);
}else{
$ACT = 'show';
}
}
//save
if($ACT == 'save'){
if(checkSecurityToken()){
$ACT = act_save($ACT);
}else{
$ACT = 'preview';
}
}
//cancel conflicting edit
if($ACT == 'cancel')
$ACT = 'show';
//draft deletion
if($ACT == 'draftdel')
$ACT = act_draftdel($ACT);
//draft saving on preview
if($ACT == 'preview')
$ACT = act_draftsave($ACT);
//edit
if(in_array($ACT, array('edit', 'preview', 'recover'))) {
$ACT = act_edit($ACT);
}else{
unlock($ID); //try to unlock
}
//handle export
if(substr($ACT,0,7) == 'export_')
$ACT = act_export($ACT);
//handle admin tasks
if($ACT == 'admin'){
// retrieve admin plugin name from $_REQUEST['page']
if (($page = $INPUT->str('page', '', true)) != '') {
$pluginlist = plugin_list('admin');
if (in_array($page, $pluginlist)) {
// attempt to load the plugin
if (($plugin = plugin_load('admin',$page)) !== null){
/** @var DokuWiki_Admin_Plugin $plugin */
if($plugin->forAdminOnly() && !$INFO['isadmin']){
// a manager tried to load a plugin that's for admins only
$INPUT->remove('page');
msg('For admins only',-1);
}else{
$plugin->handle();
}
}
}
}
}
// check permissions again - the action may have changed
$ACT = act_permcheck($ACT);
} // end event ACTION_ACT_PREPROCESS default action
$evt->advise_after();
// Make sure plugs can handle 'denied'
if($conf['send404'] && $ACT == 'denied') {
http_status(403);
}
unset($evt);
// when action 'show', the intial not 'show' and POST, do a redirect
if($ACT == 'show' && $preact != 'show' && strtolower($_SERVER['REQUEST_METHOD']) == 'post'){
act_redirect($ID,$preact);
}
global $INFO;
global $conf;
global $license;
//call template FIXME: all needed vars available?
$headers[] = 'Content-Type: text/html; charset=utf-8';
trigger_event('ACTION_HEADERS_SEND',$headers,'act_sendheaders');
include(template('main.php'));
// output for the commands is now handled in inc/templates.php
// in function tpl_content()
}
/**
* Send the given headers using header()
*
* @param array $headers The headers that shall be sent
*/
function act_sendheaders($headers) {
foreach ($headers as $hdr) header($hdr);
}
/**
* Sanitize the action command
*
* @author Andreas Gohr <andi@splitbrain.org>
*/
function act_clean($act){
// check if the action was given as array key
if(is_array($act)){
list($act) = array_keys($act);
}
//remove all bad chars
$act = strtolower($act);
$act = preg_replace('/[^1-9a-z_]+/','',$act);
if($act == 'export_html') $act = 'export_xhtml';
if($act == 'export_htmlbody') $act = 'export_xhtmlbody';
if($act === '') $act = 'show';
return $act;
}
/**
* Sanitize and validate action commands.
*
* Add all allowed commands here.
*
* @author Andreas Gohr <andi@splitbrain.org>
*/
function act_validate($act) {
global $conf;
global $INFO;
$act = act_clean($act);
// check if action is disabled
if(!actionOK($act)){
msg('Command disabled: '.htmlspecialchars($act),-1);
return 'show';
}
//disable all acl related commands if ACL is disabled
if(!$conf['useacl'] && in_array($act,array('login','logout','register','admin',
'subscribe','unsubscribe','profile','revert',
'resendpwd','profile_delete'))){
msg('Command unavailable: '.htmlspecialchars($act),-1);
return 'show';
}
//is there really a draft?
if($act == 'draft' && !file_exists($INFO['draft'])) return 'edit';
if(!in_array($act,array('login','logout','register','save','cancel','edit','draft',
'preview','search','show','check','index','revisions',
'diff','recent','backlink','admin','subscribe','revert',
'unsubscribe','profile','profile_delete','resendpwd','recover',
'draftdel','sitemap','media')) && substr($act,0,7) != 'export_' ) {
msg('Command unknown: '.htmlspecialchars($act),-1);
return 'show';
}
return $act;
}
/**
* Run permissionchecks
*
* @author Andreas Gohr <andi@splitbrain.org>
*/
function act_permcheck($act){
global $INFO;
global $conf;
if(in_array($act,array('save','preview','edit','recover'))){
if($INFO['exists']){
if($act == 'edit'){
//the edit function will check again and do a source show
//when no AUTH_EDIT available
$permneed = AUTH_READ;
}else{
$permneed = AUTH_EDIT;
}
}else{
$permneed = AUTH_CREATE;
}
}elseif(in_array($act,array('login','search','recent','profile','profile_delete','index', 'sitemap'))){
$permneed = AUTH_NONE;
}elseif($act == 'revert'){
$permneed = AUTH_ADMIN;
if($INFO['ismanager']) $permneed = AUTH_EDIT;
}elseif($act == 'register'){
$permneed = AUTH_NONE;
}elseif($act == 'resendpwd'){
$permneed = AUTH_NONE;
}elseif($act == 'admin'){
if($INFO['ismanager']){
// if the manager has the needed permissions for a certain admin
// action is checked later
$permneed = AUTH_READ;
}else{
$permneed = AUTH_ADMIN;
}
}else{
$permneed = AUTH_READ;
}
if($INFO['perm'] >= $permneed) return $act;
return 'denied';
}
/**
* Handle 'draftdel'
*
* Deletes the draft for the current page and user
*/
function act_draftdel($act){
global $INFO;
@unlink($INFO['draft']);
$INFO['draft'] = null;
return 'show';
}
/**
* Saves a draft on preview
*
* @todo this currently duplicates code from ajax.php :-/
*/
function act_draftsave($act){
global $INFO;
global $ID;
global $INPUT;
global $conf;
if($conf['usedraft'] && $INPUT->post->has('wikitext')) {
$draft = array('id' => $ID,
'prefix' => substr($INPUT->post->str('prefix'), 0, -1),
'text' => $INPUT->post->str('wikitext'),
'suffix' => $INPUT->post->str('suffix'),
'date' => $INPUT->post->int('date'),
'client' => $INFO['client'],
);
$cname = getCacheName($draft['client'].$ID,'.draft');
if(io_saveFile($cname,serialize($draft))){
$INFO['draft'] = $cname;
}
}
return $act;
}
/**
* Handle 'save'
*
* Checks for spam and conflicts and saves the page.
* Does a redirect to show the page afterwards or
* returns a new action.
*
* @author Andreas Gohr <andi@splitbrain.org>
*/
function act_save($act){
global $ID;
global $DATE;
global $PRE;
global $TEXT;
global $SUF;
global $SUM;
global $lang;
global $INFO;
global $INPUT;
//spam check
if(checkwordblock()) {
msg($lang['wordblock'], -1);
return 'edit';
}
//conflict check
if($DATE != 0 && $INFO['meta']['date']['modified'] > $DATE )
return 'conflict';
//save it
saveWikiText($ID,con($PRE,$TEXT,$SUF,1),$SUM,$INPUT->bool('minor')); //use pretty mode for con
//unlock it
unlock($ID);
//delete draft
act_draftdel($act);
session_write_close();
// when done, show page
return 'show';
}
/**
* Revert to a certain revision
*
* @author Andreas Gohr <andi@splitbrain.org>
*/
function act_revert($act){
global $ID;
global $REV;
global $lang;
// FIXME $INFO['writable'] currently refers to the attic version
// global $INFO;
// if (!$INFO['writable']) {
// return 'show';
// }
// when no revision is given, delete current one
// FIXME this feature is not exposed in the GUI currently
$text = '';
$sum = $lang['deleted'];
if($REV){
$text = rawWiki($ID,$REV);
if(!$text) return 'show'; //something went wrong
$sum = sprintf($lang['restored'], dformat($REV));
}
// spam check
if (checkwordblock($text)) {
msg($lang['wordblock'], -1);
return 'edit';
}
saveWikiText($ID,$text,$sum,false);
msg($sum,1);
//delete any draft
act_draftdel($act);
session_write_close();
// when done, show current page
$_SERVER['REQUEST_METHOD'] = 'post'; //should force a redirect
$REV = '';
return 'show';
}
/**
* Do a redirect after receiving post data
*
* Tries to add the section id as hash mark after section editing
*/
function act_redirect($id,$preact){
global $PRE;
global $TEXT;
$opts = array(
'id' => $id,
'preact' => $preact
);
//get section name when coming from section edit
if($PRE && preg_match('/^\s*==+([^=\n]+)/',$TEXT,$match)){
$check = false; //Byref
$opts['fragment'] = sectionID($match[0], $check);
}
trigger_event('ACTION_SHOW_REDIRECT',$opts,'act_redirect_execute');
}
/**
* Execute the redirect
*
* @param array $opts id and fragment for the redirect
*/
function act_redirect_execute($opts){
$go = wl($opts['id'],'',true);
if(isset($opts['fragment'])) $go .= '#'.$opts['fragment'];
//show it
send_redirect($go);
}
/**
* Handle 'login', 'logout'
*
* @author Andreas Gohr <andi@splitbrain.org>
*/
function act_auth($act){
global $ID;
global $INFO;
//already logged in?
if(isset($_SERVER['REMOTE_USER']) && $act=='login'){
return 'show';
}
//handle logout
if($act=='logout'){
$lockedby = checklock($ID); //page still locked?
if($lockedby == $_SERVER['REMOTE_USER'])
unlock($ID); //try to unlock
// do the logout stuff
auth_logoff();
// rebuild info array
$INFO = pageinfo();
act_redirect($ID,'login');
}
return $act;
}
/**
* Handle 'edit', 'preview', 'recover'
*
* @author Andreas Gohr <andi@splitbrain.org>
*/
function act_edit($act){
global $ID;
global $INFO;
global $TEXT;
global $RANGE;
global $PRE;
global $SUF;
global $REV;
global $SUM;
global $lang;
global $DATE;
if (!isset($TEXT)) {
if ($INFO['exists']) {
if ($RANGE) {
list($PRE,$TEXT,$SUF) = rawWikiSlices($RANGE,$ID,$REV);
} else {
$TEXT = rawWiki($ID,$REV);
}
} else {
$TEXT = pageTemplate($ID);
}
}
//set summary default
if(!$SUM){
if($REV){
$SUM = sprintf($lang['restored'], dformat($REV));
}elseif(!$INFO['exists']){
$SUM = $lang['created'];
}
}
// Use the date of the newest revision, not of the revision we edit
// This is used for conflict detection
if(!$DATE) $DATE = @filemtime(wikiFN($ID));
//check if locked by anyone - if not lock for my self
//do not lock when the user can't edit anyway
if ($INFO['writable']) {
$lockedby = checklock($ID);
if($lockedby) return 'locked';
lock($ID);
}
return $act;
}
/**
* Export a wiki page for various formats
*
* Triggers ACTION_EXPORT_POSTPROCESS
*
* Event data:
* data['id'] -- page id
* data['mode'] -- requested export mode
* data['headers'] -- export headers
* data['output'] -- export output
*
* @author Andreas Gohr <andi@splitbrain.org>
* @author Michael Klier <chi@chimeric.de>
*/
function act_export($act){
global $ID;
global $REV;
global $conf;
global $lang;
$pre = '';
$post = '';
$output = '';
$headers = array();
// search engines: never cache exported docs! (Google only currently)
$headers['X-Robots-Tag'] = 'noindex';
$mode = substr($act,7);
switch($mode) {
case 'raw':
$headers['Content-Type'] = 'text/plain; charset=utf-8';
$headers['Content-Disposition'] = 'attachment; filename='.noNS($ID).'.txt';
$output = rawWiki($ID,$REV);
break;
case 'xhtml':
$pre .= '<!DOCTYPE html>' . DOKU_LF;
$pre .= '<html lang="'.$conf['lang'].'" dir="'.$lang['direction'].'">' . DOKU_LF;
$pre .= '<head>' . DOKU_LF;
$pre .= ' <meta charset="utf-8" />' . DOKU_LF;
$pre .= ' <title>'.$ID.'</title>' . DOKU_LF;
// get metaheaders
ob_start();
tpl_metaheaders();
$pre .= ob_get_clean();
$pre .= '</head>' . DOKU_LF;
$pre .= '<body>' . DOKU_LF;
$pre .= '<div class="dokuwiki export">' . DOKU_LF;
// get toc
$pre .= tpl_toc(true);
$headers['Content-Type'] = 'text/html; charset=utf-8';
$output = p_wiki_xhtml($ID,$REV,false);
$post .= '</div>' . DOKU_LF;
$post .= '</body>' . DOKU_LF;
$post .= '</html>' . DOKU_LF;
break;
case 'xhtmlbody':
$headers['Content-Type'] = 'text/html; charset=utf-8';
$output = p_wiki_xhtml($ID,$REV,false);
break;
default:
$output = p_cached_output(wikiFN($ID,$REV), $mode);
$headers = p_get_metadata($ID,"format $mode");
break;
}
// prepare event data
$data = array();
$data['id'] = $ID;
$data['mode'] = $mode;
$data['headers'] = $headers;
$data['output'] =& $output;
trigger_event('ACTION_EXPORT_POSTPROCESS', $data);
if(!empty($data['output'])){
if(is_array($data['headers'])) foreach($data['headers'] as $key => $val){
header("$key: $val");
}
print $pre.$data['output'].$post;
exit;
}
return 'show';
}
/**
* Handle sitemap delivery
*
* @author Michael Hamann <michael@content-space.de>
*/
function act_sitemap($act) {
global $conf;
if ($conf['sitemap'] < 1 || !is_numeric($conf['sitemap'])) {
http_status(404);
print "Sitemap generation is disabled.";
exit;
}
$sitemap = Sitemapper::getFilePath();
if (Sitemapper::sitemapIsCompressed()) {
$mime = 'application/x-gzip';
}else{
$mime = 'application/xml; charset=utf-8';
}
// Check if sitemap file exists, otherwise create it
if (!is_readable($sitemap)) {
Sitemapper::generate();
}
if (is_readable($sitemap)) {
// Send headers
header('Content-Type: '.$mime);
header('Content-Disposition: attachment; filename='.utf8_basename($sitemap));
http_conditionalRequest(filemtime($sitemap));
// Send file
//use x-sendfile header to pass the delivery to compatible webservers
if (http_sendfile($sitemap)) exit;
readfile($sitemap);
exit;
}
http_status(500);
print "Could not read the sitemap file - bad permissions?";
exit;
}
/**
* Handle page 'subscribe'
*
* Throws exception on error.
*
* @author Adrian Lang <lang@cosmocode.de>
*/
function act_subscription($act){
global $lang;
global $INFO;
global $ID;
global $INPUT;
// subcriptions work for logged in users only
if(!$_SERVER['REMOTE_USER']) return 'show';
// get and preprocess data.
$params = array();
foreach(array('target', 'style', 'action') as $param) {
if ($INPUT->has("sub_$param")) {
$params[$param] = $INPUT->str("sub_$param");
}
}
// any action given? if not just return and show the subscription page
if(!$params['action'] || !checkSecurityToken()) return $act;
// Handle POST data, may throw exception.
trigger_event('ACTION_HANDLE_SUBSCRIBE', $params, 'subscription_handle_post');
$target = $params['target'];
$style = $params['style'];
$action = $params['action'];
// Perform action.
$sub = new Subscription();
if($action == 'unsubscribe'){
$ok = $sub->remove($target, $_SERVER['REMOTE_USER'], $style);
}else{
$ok = $sub->add($target, $_SERVER['REMOTE_USER'], $style);
}
if($ok) {
msg(sprintf($lang["subscr_{$action}_success"], hsc($INFO['userinfo']['name']),
prettyprint_id($target)), 1);
act_redirect($ID, $act);
} else {
throw new Exception(sprintf($lang["subscr_{$action}_error"],
hsc($INFO['userinfo']['name']),
prettyprint_id($target)));
}
// Assure that we have valid data if act_redirect somehow fails.
$INFO['subscribed'] = $sub->user_subscription();
return 'show';
}
/**
* Validate POST data
*
* Validates POST data for a subscribe or unsubscribe request. This is the
* default action for the event ACTION_HANDLE_SUBSCRIBE.
*
* @author Adrian Lang <lang@cosmocode.de>
*/
function subscription_handle_post(&$params) {
global $INFO;
global $lang;
// Get and validate parameters.
if (!isset($params['target'])) {
throw new Exception('no subscription target given');
}
$target = $params['target'];
$valid_styles = array('every', 'digest');
if (substr($target, -1, 1) === ':') {
// Allow “list” subscribe style since the target is a namespace.
$valid_styles[] = 'list';
}
$style = valid_input_set('style', $valid_styles, $params,
'invalid subscription style given');
$action = valid_input_set('action', array('subscribe', 'unsubscribe'),
$params, 'invalid subscription action given');
// Check other conditions.
if ($action === 'subscribe') {
if ($INFO['userinfo']['mail'] === '') {
throw new Exception($lang['subscr_subscribe_noaddress']);
}
} elseif ($action === 'unsubscribe') {
$is = false;
foreach($INFO['subscribed'] as $subscr) {
if ($subscr['target'] === $target) {
$is = true;
}
}
if ($is === false) {
throw new Exception(sprintf($lang['subscr_not_subscribed'],
$_SERVER['REMOTE_USER'],
prettyprint_id($target)));
}
// subscription_set deletes a subscription if style = null.
$style = null;
}
$params = compact('target', 'style', 'action');
}
//Setup VIM: ex: et ts=2 :