Rename lib/dokuwiki to vendors/dokuwiki

1 files changed, 324 insertions, 0 deletions

diff --git a/vendors/dokuwiki/inc/auth/plain.class.php b/vendors/dokuwiki/inc/auth/plain.class.php
new file mode 100644
index 000000000..94e0c6bc2
--- /dev/null
+++ b/vendors/dokuwiki/inc/auth/plain.class.php
@@ -0,0 +1,324 @@
+<?php
+/**
+ * Plaintext authentication backend
+ *
+ * @license    GPL 2 (http://www.gnu.org/licenses/gpl.html)
+ * @author     Andreas Gohr <andi@splitbrain.org>
+ * @author     Chris Smith <chris@jalakai.co.uk>
+ */
+
+define('DOKU_AUTH', dirname(__FILE__));
+require_once(DOKU_AUTH.'/basic.class.php');
+
+define('AUTH_USERFILE',DOKU_CONF.'users.auth.php');
+
+class auth_plain extends auth_basic {
+
+    var $users = null;
+    var $_pattern = array();
+
+    /**
+     * Constructor
+     *
+     * Carry out sanity checks to ensure the object is
+     * able to operate. Set capabilities.
+     *
+     * @author  Christopher Smith <chris@jalakai.co.uk>
+     */
+    function auth_plain() {
+      if (!@is_readable(AUTH_USERFILE)){
+        $this->success = false;
+      }else{
+        if(@is_writable(AUTH_USERFILE)){
+          $this->cando['addUser']      = true;
+          $this->cando['delUser']      = true;
+          $this->cando['modLogin']     = true;
+          $this->cando['modPass']      = true;
+          $this->cando['modName']      = true;
+          $this->cando['modMail']      = true;
+          $this->cando['modGroups']    = true;
+        }
+        $this->cando['getUsers']     = true;
+        $this->cando['getUserCount'] = true;
+      }
+    }
+
+    /**
+     * Check user+password [required auth function]
+     *
+     * Checks if the given user exists and the given
+     * plaintext password is correct
+     *
+     * @author  Andreas Gohr <andi@splitbrain.org>
+     * @return  bool
+     */
+    function checkPass($user,$pass){
+
+      $userinfo = $this->getUserData($user);
+      if ($userinfo === false) return false;
+
+      return auth_verifyPassword($pass,$this->users[$user]['pass']);
+    }
+
+    /**
+     * Return user info
+     *
+     * Returns info about the given user needs to contain
+     * at least these fields:
+     *
+     * name string  full name of the user
+     * mail string  email addres of the user
+     * grps array   list of groups the user is in
+     *
+     * @author  Andreas Gohr <andi@splitbrain.org>
+     */
+    function getUserData($user){
+
+      if($this->users === null) $this->_loadUserData();
+      return isset($this->users[$user]) ? $this->users[$user] : false;
+    }
+
+    /**
+     * Create a new User
+     *
+     * Returns false if the user already exists, null when an error
+     * occurred and true if everything went well.
+     *
+     * The new user will be added to the default group by this
+     * function if grps are not specified (default behaviour).
+     *
+     * @author  Andreas Gohr <andi@splitbrain.org>
+     * @author  Chris Smith <chris@jalakai.co.uk>
+     */
+    function createUser($user,$pwd,$name,$mail,$grps=null){
+      global $conf;
+
+      // user mustn't already exist
+      if ($this->getUserData($user) !== false) return false;
+
+      $pass = auth_cryptPassword($pwd);
+
+      // set default group if no groups specified
+      if (!is_array($grps)) $grps = array($conf['defaultgroup']);
+
+      // prepare user line
+      $groups = join(',',$grps);
+      $userline = join(':',array($user,$pass,$name,$mail,$groups))."\n";
+
+      if (io_saveFile(AUTH_USERFILE,$userline,true)) {
+        $this->users[$user] = compact('pass','name','mail','grps');
+        return $pwd;
+      }
+
+      msg('The '.AUTH_USERFILE.' file is not writable. Please inform the Wiki-Admin',-1);
+      return null;
+    }
+
+    /**
+     * Modify user data
+     *
+     * @author  Chris Smith <chris@jalakai.co.uk>
+     * @param   $user      nick of the user to be changed
+     * @param   $changes   array of field/value pairs to be changed (password will be clear text)
+     * @return  bool
+     */
+    function modifyUser($user, $changes) {
+      global $conf;
+      global $ACT;
+      global $INFO;
+
+      // sanity checks, user must already exist and there must be something to change
+      if (($userinfo = $this->getUserData($user)) === false) return false;
+      if (!is_array($changes) || !count($changes)) return true;
+
+      // update userinfo with new data, remembering to encrypt any password
+      $newuser = $user;
+      foreach ($changes as $field => $value) {
+        if ($field == 'user') {
+          $newuser = $value;
+          continue;
+        }
+        if ($field == 'pass') $value = auth_cryptPassword($value);
+        $userinfo[$field] = $value;
+      }
+
+      $groups = join(',',$userinfo['grps']);
+      $userline = join(':',array($newuser, $userinfo['pass'], $userinfo['name'], $userinfo['mail'], $groups))."\n";
+
+      if (!$this->deleteUsers(array($user))) {
+        msg('Unable to modify user data. Please inform the Wiki-Admin',-1);
+        return false;
+      }
+
+      if (!io_saveFile(AUTH_USERFILE,$userline,true)) {
+        msg('There was an error modifying your user data. You should register again.',-1);
+        // FIXME, user has been deleted but not recreated, should force a logout and redirect to login page
+        $ACT == 'register';
+        return false;
+      }
+
+      $this->users[$newuser] = $userinfo;
+      return true;
+    }
+
+    /**
+     *  Remove one or more users from the list of registered users
+     *
+     *  @author  Christopher Smith <chris@jalakai.co.uk>
+     *  @param   array  $users   array of users to be deleted
+     *  @return  int             the number of users deleted
+     */
+    function deleteUsers($users) {
+
+      if (!is_array($users) || empty($users)) return 0;
+
+      if ($this->users === null) $this->_loadUserData();
+
+      $deleted = array();
+      foreach ($users as $user) {
+        if (isset($this->users[$user])) $deleted[] = preg_quote($user,'/');
+      }
+
+      if (empty($deleted)) return 0;
+
+      $pattern = '/^('.join('|',$deleted).'):/';
+
+      if (io_deleteFromFile(AUTH_USERFILE,$pattern,true)) {
+        foreach ($deleted as $user) unset($this->users[$user]);
+        return count($deleted);
+      }
+
+      // problem deleting, reload the user list and count the difference
+      $count = count($this->users);
+      $this->_loadUserData();
+      $count -= count($this->users);
+      return $count;
+    }
+
+    /**
+     * Return a count of the number of user which meet $filter criteria
+     *
+     * @author  Chris Smith <chris@jalakai.co.uk>
+     */
+    function getUserCount($filter=array()) {
+      if($this->users === null) $this->_loadUserData();
+
+      if (!count($filter)) return count($this->users);
+
+      $count = 0;
+      $this->_constructPattern($filter);
+
+      foreach ($this->users as $user => $info) {
+          $count += $this->_filter($user, $info);
+      }
+
+      return $count;
+    }
+
+    /**
+     * Bulk retrieval of user data
+     *
+     * @author  Chris Smith <chris@jalakai.co.uk>
+     * @param   start     index of first user to be returned
+     * @param   limit     max number of users to be returned
+     * @param   filter    array of field/pattern pairs
+     * @return  array of userinfo (refer getUserData for internal userinfo details)
+     */
+    function retrieveUsers($start=0,$limit=0,$filter=array()) {
+
+      if ($this->users === null) $this->_loadUserData();
+
+      ksort($this->users);
+
+      $i = 0;
+      $count = 0;
+      $out = array();
+      $this->_constructPattern($filter);
+
+      foreach ($this->users as $user => $info) {
+        if ($this->_filter($user, $info)) {
+          if ($i >= $start) {
+            $out[$user] = $info;
+            $count++;
+            if (($limit > 0) && ($count >= $limit)) break;
+          }
+          $i++;
+        }
+      }
+
+      return $out;
+    }
+
+    /**
+     * Only valid pageid's (no namespaces) for usernames
+     */
+    function cleanUser($user){
+        global $conf;
+        return cleanID(str_replace(':',$conf['sepchar'],$user));
+    }
+
+    /**
+     * Only valid pageid's (no namespaces) for groupnames
+     */
+    function cleanGroup($group){
+        global $conf;
+        return cleanID(str_replace(':',$conf['sepchar'],$group));
+    }
+
+    /**
+     * Load all user data
+     *
+     * loads the user file into a datastructure
+     *
+     * @author  Andreas Gohr <andi@splitbrain.org>
+     */
+    function _loadUserData(){
+      $this->users = array();
+
+      if(!@file_exists(AUTH_USERFILE)) return;
+
+      $lines = file(AUTH_USERFILE);
+      foreach($lines as $line){
+        $line = preg_replace('/#.*$/','',$line); //ignore comments
+        $line = trim($line);
+        if(empty($line)) continue;
+
+        $row    = explode(":",$line,5);
+        $groups = array_values(array_filter(explode(",",$row[4])));
+
+        $this->users[$row[0]]['pass'] = $row[1];
+        $this->users[$row[0]]['name'] = urldecode($row[2]);
+        $this->users[$row[0]]['mail'] = $row[3];
+        $this->users[$row[0]]['grps'] = $groups;
+      }
+    }
+
+    /**
+     * return 1 if $user + $info match $filter criteria, 0 otherwise
+     *
+     * @author   Chris Smith <chris@jalakai.co.uk>
+     */
+    function _filter($user, $info) {
+        // FIXME
+        foreach ($this->_pattern as $item => $pattern) {
+            if ($item == 'user') {
+                if (!preg_match($pattern, $user)) return 0;
+            } else if ($item == 'grps') {
+                if (!count(preg_grep($pattern, $info['grps']))) return 0;
+            } else {
+                if (!preg_match($pattern, $info[$item])) return 0;
+            }
+        }
+        return 1;
+    }
+
+    function _constructPattern($filter) {
+      $this->_pattern = array();
+      foreach ($filter as $item => $pattern) {
+//        $this->_pattern[$item] = '/'.preg_quote($pattern,"/").'/i';          // don't allow regex characters
+        $this->_pattern[$item] = '/'.str_replace('/','\/',$pattern).'/i';    // allow regex characters
+      }
+    }
+}
+
+//Setup VIM: ex: et ts=2 enc=utf-8 :