651 lines
18 KiB
PHP
651 lines
18 KiB
PHP
<?php
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/**
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* DokuWiki Actions
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*
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* @license GPL 2 (http://www.gnu.org/licenses/gpl.html)
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* @author Andreas Gohr <andi@splitbrain.org>
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*/
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if(!defined('DOKU_INC')) die('meh.');
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/**
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* Call the needed action handlers
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*
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* @author Andreas Gohr <andi@splitbrain.org>
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* @triggers ACTION_ACT_PREPROCESS
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* @triggers ACTION_HEADERS_SEND
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*/
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function act_dispatch(){
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global $INFO;
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global $ACT;
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global $ID;
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global $QUERY;
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global $lang;
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global $conf;
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global $license;
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$preact = $ACT;
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// give plugins an opportunity to process the action
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$evt = new Doku_Event('ACTION_ACT_PREPROCESS',$ACT);
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if ($evt->advise_before()) {
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//sanitize $ACT
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$ACT = act_clean($ACT);
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//check if searchword was given - else just show
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$s = cleanID($QUERY);
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if($ACT == 'search' && empty($s)){
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$ACT = 'show';
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}
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//login stuff
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if(in_array($ACT,array('login','logout'))){
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$ACT = act_auth($ACT);
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}
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//check if user is asking to (un)subscribe a page
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if($ACT == 'subscribe') {
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try {
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$ACT = act_subscription($ACT);
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} catch (Exception $e) {
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msg($e->getMessage(), -1);
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}
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}
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//check permissions
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$ACT = act_permcheck($ACT);
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//register
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$nil = array();
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if($ACT == 'register' && $_POST['save'] && register()){
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$ACT = 'login';
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}
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if ($ACT == 'resendpwd' && act_resendpwd()) {
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$ACT = 'login';
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}
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//update user profile
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if ($ACT == 'profile') {
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if(!$_SERVER['REMOTE_USER']) {
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$ACT = 'login';
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} else {
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if(updateprofile()) {
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msg($lang['profchanged'],1);
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$ACT = 'show';
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}
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}
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}
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//revert
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if($ACT == 'revert'){
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if(checkSecurityToken()){
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$ACT = act_revert($ACT);
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}else{
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$ACT = 'show';
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}
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}
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//save
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if($ACT == 'save'){
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if(checkSecurityToken()){
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$ACT = act_save($ACT);
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}else{
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$ACT = 'show';
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}
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}
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//cancel conflicting edit
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if($ACT == 'cancel')
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$ACT = 'show';
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//draft deletion
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if($ACT == 'draftdel')
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$ACT = act_draftdel($ACT);
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//draft saving on preview
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if($ACT == 'preview')
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$ACT = act_draftsave($ACT);
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//edit
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if(($ACT == 'edit' || $ACT == 'preview') && $INFO['editable']){
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$ACT = act_edit($ACT);
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}else{
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unlock($ID); //try to unlock
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}
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//handle export
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if(substr($ACT,0,7) == 'export_')
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$ACT = act_export($ACT);
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//display some infos
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if($ACT == 'check'){
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check();
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$ACT = 'show';
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}
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//handle admin tasks
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if($ACT == 'admin'){
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// retrieve admin plugin name from $_REQUEST['page']
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if (!empty($_REQUEST['page'])) {
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$pluginlist = plugin_list('admin');
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if (in_array($_REQUEST['page'], $pluginlist)) {
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// attempt to load the plugin
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if ($plugin =& plugin_load('admin',$_REQUEST['page']) !== null)
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$plugin->handle();
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}
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}
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}
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// check permissions again - the action may have changed
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$ACT = act_permcheck($ACT);
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} // end event ACTION_ACT_PREPROCESS default action
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$evt->advise_after();
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unset($evt);
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// when action 'show', the intial not 'show' and POST, do a redirect
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if($ACT == 'show' && $preact != 'show' && strtolower($_SERVER['REQUEST_METHOD']) == 'post'){
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act_redirect($ID,$preact);
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}
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//call template FIXME: all needed vars available?
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$headers[] = 'Content-Type: text/html; charset=utf-8';
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trigger_event('ACTION_HEADERS_SEND',$headers,'act_sendheaders');
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include(template('main.php'));
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// output for the commands is now handled in inc/templates.php
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// in function tpl_content()
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}
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function act_sendheaders($headers) {
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foreach ($headers as $hdr) header($hdr);
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}
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/**
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* Sanitize the action command
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*
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* Add all allowed commands here.
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*
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* @author Andreas Gohr <andi@splitbrain.org>
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*/
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function act_clean($act){
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global $lang;
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global $conf;
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// check if the action was given as array key
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if(is_array($act)){
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list($act) = array_keys($act);
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}
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//remove all bad chars
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$act = strtolower($act);
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$act = preg_replace('/[^1-9a-z_]+/','',$act);
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if($act == 'export_html') $act = 'export_xhtml';
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if($act == 'export_htmlbody') $act = 'export_xhtmlbody';
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// check if action is disabled
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if(!actionOK($act)){
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msg('Command disabled: '.htmlspecialchars($act),-1);
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return 'show';
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}
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//disable all acl related commands if ACL is disabled
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if(!$conf['useacl'] && in_array($act,array('login','logout','register','admin',
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'subscribe','unsubscribe','profile','revert',
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'resendpwd','subscribens','unsubscribens',))){
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msg('Command unavailable: '.htmlspecialchars($act),-1);
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return 'show';
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}
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if(!in_array($act,array('login','logout','register','save','cancel','edit','draft',
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'preview','search','show','check','index','revisions',
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'diff','recent','backlink','admin','subscribe','revert',
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'unsubscribe','profile','resendpwd','recover','wordblock',
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'draftdel','subscribens','unsubscribens',)) && substr($act,0,7) != 'export_' ) {
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msg('Command unknown: '.htmlspecialchars($act),-1);
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return 'show';
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}
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return $act;
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}
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/**
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* Run permissionchecks
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*
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* @author Andreas Gohr <andi@splitbrain.org>
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*/
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function act_permcheck($act){
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global $INFO;
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global $conf;
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if(in_array($act,array('save','preview','edit','recover'))){
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if($INFO['exists']){
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if($act == 'edit'){
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//the edit function will check again and do a source show
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//when no AUTH_EDIT available
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$permneed = AUTH_READ;
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}else{
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$permneed = AUTH_EDIT;
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}
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}else{
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$permneed = AUTH_CREATE;
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}
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}elseif(in_array($act,array('login','search','recent','profile'))){
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$permneed = AUTH_NONE;
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}elseif($act == 'revert'){
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$permneed = AUTH_ADMIN;
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if($INFO['ismanager']) $permneed = AUTH_EDIT;
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}elseif($act == 'register'){
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$permneed = AUTH_NONE;
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}elseif($act == 'resendpwd'){
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$permneed = AUTH_NONE;
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}elseif($act == 'admin'){
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if($INFO['ismanager']){
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// if the manager has the needed permissions for a certain admin
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// action is checked later
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$permneed = AUTH_READ;
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}else{
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$permneed = AUTH_ADMIN;
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}
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}else{
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$permneed = AUTH_READ;
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}
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if($INFO['perm'] >= $permneed) return $act;
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return 'denied';
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}
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/**
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* Handle 'draftdel'
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*
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* Deletes the draft for the current page and user
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*/
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function act_draftdel($act){
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global $INFO;
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@unlink($INFO['draft']);
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$INFO['draft'] = null;
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return 'show';
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}
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/**
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* Saves a draft on preview
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*
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* @todo this currently duplicates code from ajax.php :-/
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*/
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function act_draftsave($act){
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global $INFO;
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global $ID;
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global $conf;
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if($conf['usedraft'] && $_POST['wikitext']){
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$draft = array('id' => $ID,
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'prefix' => $_POST['prefix'],
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'text' => $_POST['wikitext'],
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'suffix' => $_POST['suffix'],
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'date' => $_POST['date'],
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'client' => $INFO['client'],
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);
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$cname = getCacheName($draft['client'].$ID,'.draft');
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if(io_saveFile($cname,serialize($draft))){
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$INFO['draft'] = $cname;
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}
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}
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return $act;
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}
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/**
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* Handle 'save'
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*
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* Checks for spam and conflicts and saves the page.
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* Does a redirect to show the page afterwards or
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* returns a new action.
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*
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* @author Andreas Gohr <andi@splitbrain.org>
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*/
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function act_save($act){
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global $ID;
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global $DATE;
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global $PRE;
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global $TEXT;
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global $SUF;
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global $SUM;
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//spam check
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if(checkwordblock())
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return 'wordblock';
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//conflict check //FIXME use INFO
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if($DATE != 0 && @filemtime(wikiFN($ID)) > $DATE )
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return 'conflict';
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//save it
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saveWikiText($ID,con($PRE,$TEXT,$SUF,1),$SUM,$_REQUEST['minor']); //use pretty mode for con
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//unlock it
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unlock($ID);
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//delete draft
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act_draftdel($act);
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session_write_close();
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// when done, show page
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return 'show';
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}
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/**
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* Revert to a certain revision
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*
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* @author Andreas Gohr <andi@splitbrain.org>
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*/
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function act_revert($act){
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global $ID;
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global $REV;
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global $lang;
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// when no revision is given, delete current one
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// FIXME this feature is not exposed in the GUI currently
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$text = '';
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$sum = $lang['deleted'];
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if($REV){
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$text = rawWiki($ID,$REV);
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if(!$text) return 'show'; //something went wrong
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$sum = $lang['restored'];
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}
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// spam check
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if(checkwordblock($Text))
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return 'wordblock';
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saveWikiText($ID,$text,$sum,false);
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msg($sum,1);
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//delete any draft
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act_draftdel($act);
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session_write_close();
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// when done, show current page
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$_SERVER['REQUEST_METHOD'] = 'post'; //should force a redirect
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$REV = '';
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return 'show';
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}
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/**
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* Do a redirect after receiving post data
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*
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* Tries to add the section id as hash mark after section editing
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*/
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function act_redirect($id,$preact){
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global $PRE;
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global $TEXT;
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global $MSG;
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//are there any undisplayed messages? keep them in session for display
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//on the next page
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if(isset($MSG) && count($MSG)){
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//reopen session, store data and close session again
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@session_start();
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$_SESSION[DOKU_COOKIE]['msg'] = $MSG;
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session_write_close();
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}
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$opts = array(
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'id' => $id,
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'preact' => $preact
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);
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//get section name when coming from section edit
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if($PRE && preg_match('/^\s*==+([^=\n]+)/',$TEXT,$match)){
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$check = false; //Byref
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$opts['fragment'] = sectionID($match[0], $check);
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}
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trigger_event('ACTION_SHOW_REDIRECT',$opts,'act_redirect_execute');
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}
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function act_redirect_execute($opts){
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$go = wl($opts['id'],'',true);
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if(isset($opts['fragment'])) $go .= '#'.$opts['fragment'];
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//show it
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send_redirect($go);
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}
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/**
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* Handle 'login', 'logout'
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*
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* @author Andreas Gohr <andi@splitbrain.org>
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*/
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function act_auth($act){
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global $ID;
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global $INFO;
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//already logged in?
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if(isset($_SERVER['REMOTE_USER']) && $act=='login'){
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return 'show';
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}
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//handle logout
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if($act=='logout'){
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$lockedby = checklock($ID); //page still locked?
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if($lockedby == $_SERVER['REMOTE_USER'])
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unlock($ID); //try to unlock
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// do the logout stuff
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auth_logoff();
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// rebuild info array
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$INFO = pageinfo();
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act_redirect($ID,'login');
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}
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return $act;
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}
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/**
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* Handle 'edit', 'preview'
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*
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* @author Andreas Gohr <andi@splitbrain.org>
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*/
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function act_edit($act){
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global $ID;
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global $INFO;
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//check if locked by anyone - if not lock for my self
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$lockedby = checklock($ID);
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if($lockedby) return 'locked';
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lock($ID);
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return $act;
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}
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/**
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* Export a wiki page for various formats
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*
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* Triggers ACTION_EXPORT_POSTPROCESS
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*
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* Event data:
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* data['id'] -- page id
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* data['mode'] -- requested export mode
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* data['headers'] -- export headers
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* data['output'] -- export output
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*
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* @author Andreas Gohr <andi@splitbrain.org>
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* @author Michael Klier <chi@chimeric.de>
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*/
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function act_export($act){
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global $ID;
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global $REV;
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global $conf;
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global $lang;
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$pre = '';
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$post = '';
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$output = '';
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$headers = array();
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// search engines: never cache exported docs! (Google only currently)
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$headers['X-Robots-Tag'] = 'noindex';
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$mode = substr($act,7);
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switch($mode) {
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case 'raw':
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$headers['Content-Type'] = 'text/plain; charset=utf-8';
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$headers['Content-Disposition'] = 'attachment; filename='.noNS($ID).'.txt';
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$output = rawWiki($ID,$REV);
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break;
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case 'xhtml':
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$pre .= '<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"' . DOKU_LF;
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$pre .= ' "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">' . DOKU_LF;
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$pre .= '<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="'.$conf['lang'].'"' . DOKU_LF;
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$pre .= ' lang="'.$conf['lang'].'" dir="'.$lang['direction'].'">' . DOKU_LF;
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$pre .= '<head>' . DOKU_LF;
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$pre .= ' <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />' . DOKU_LF;
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$pre .= ' <title>'.$ID.'</title>' . DOKU_LF;
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// get metaheaders
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ob_start();
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tpl_metaheaders();
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$pre .= ob_get_clean();
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$pre .= '</head>' . DOKU_LF;
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$pre .= '<body>' . DOKU_LF;
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$pre .= '<div class="dokuwiki export">' . DOKU_LF;
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// get toc
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$pre .= tpl_toc(true);
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$headers['Content-Type'] = 'text/html; charset=utf-8';
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$output = p_wiki_xhtml($ID,$REV,false);
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$post .= '</div>' . DOKU_LF;
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$post .= '</body>' . DOKU_LF;
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$post .= '</html>' . DOKU_LF;
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break;
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case 'xhtmlbody':
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$headers['Content-Type'] = 'text/html; charset=utf-8';
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$output = p_wiki_xhtml($ID,$REV,false);
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break;
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default:
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$output = p_cached_output(wikiFN($ID,$REV), $mode);
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$headers = p_get_metadata($ID,"format $mode");
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break;
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}
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// prepare event data
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$data = array();
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$data['id'] = $ID;
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$data['mode'] = $mode;
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$data['headers'] = $headers;
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$data['output'] =& $output;
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trigger_event('ACTION_EXPORT_POSTPROCESS', $data);
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if(!empty($data['output'])){
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if(is_array($data['headers'])) foreach($data['headers'] as $key => $val){
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header("$key: $val");
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}
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print $pre.$data['output'].$post;
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exit;
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}
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return 'show';
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}
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/**
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* Handle page 'subscribe'
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*
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* Throws exception on error.
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*
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* @author Adrian Lang <lang@cosmocode.de>
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*/
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function act_subscription($act){
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global $lang;
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global $INFO;
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global $ID;
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// get and preprocess data.
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$params = array();
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foreach(array('target', 'style', 'action') as $param) {
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if (isset($_REQUEST["sub_$param"])) {
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$params[$param] = $_REQUEST["sub_$param"];
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}
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}
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// any action given? if not just return and show the subscription page
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|
if(!$params['action']) return $act;
|
|
|
|
// Handle POST data, may throw exception.
|
|
trigger_event('ACTION_HANDLE_SUBSCRIBE', $params, 'subscription_handle_post');
|
|
|
|
$target = $params['target'];
|
|
$style = $params['style'];
|
|
$data = $params['data'];
|
|
$action = $params['action'];
|
|
|
|
// Perform action.
|
|
require_once DOKU_INC . 'inc/subscription.php';
|
|
if (!subscription_set($_SERVER['REMOTE_USER'], $target, $style, $data)) {
|
|
throw new Exception(sprintf($lang["subscr_{$action}_error"],
|
|
hsc($INFO['userinfo']['name']),
|
|
prettyprint_id($target)));
|
|
}
|
|
msg(sprintf($lang["subscr_{$action}_success"], hsc($INFO['userinfo']['name']),
|
|
prettyprint_id($target)), 1);
|
|
act_redirect($ID, $act);
|
|
|
|
// Assure that we have valid data if act_redirect somehow fails.
|
|
$INFO['subscribed'] = get_info_subscribed();
|
|
return 'show';
|
|
}
|
|
|
|
/**
|
|
* Validate POST data
|
|
*
|
|
* Validates POST data for a subscribe or unsubscribe request. This is the
|
|
* default action for the event ACTION_HANDLE_SUBSCRIBE.
|
|
*
|
|
* @author Adrian Lang <lang@cosmocode.de>
|
|
*/
|
|
function subscription_handle_post(&$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;
|
|
}
|
|
|
|
$data = in_array($style, array('list', 'digest')) ? time() : null;
|
|
$params = compact('target', 'style', 'data', 'action');
|
|
}
|
|
|
|
//Setup VIM: ex: et ts=2 enc=utf-8 :
|