1 files changed, 100 insertions, 0 deletions
diff --git a/inc/auth_plain.php b/inc/auth_plain.php
new file mode 100644
index 000000000..2b45b94ca
--- /dev/null
+++ b/inc/auth_plain.php
@@ -0,0 +1,100 @@
+<?php
+
+/**
+ * If you want to authenticate against something
+ * else then the builtin flatfile auth system
+ * you have to reimplement the "required auth
+ * functions"
+ */
+
+
+/**
+ * required auth function
+ *
+ * Checks if the given user exists and the given
+ * plaintext password is correct
+ */
+function auth_checkPass($user,$pass){
+  $users = auth_loadUserData();
+  $pass = md5($pass); //encode pass
+
+  if($users[$user]['pass'] == $pass){
+    return true;
+  }else{
+    return false;
+  }
+}
+
+/**
+ * Required auth function
+ *
+ * Returns info about the given user needs to contain
+ * at least these fields:
+ *
+ * name string  full name of the user
+ * mail string  email addres of the user
+ * grps array   list of groups the user is in
+ */
+function auth_getUserData($user){
+  $users = auth_loadUserData();
+  return $users[$user];
+}
+
+/**
+ * Required auth function
+ *
+ * Creates a new user.
+ *
+ * Returns false if the user already exists, null when an error
+ * occured and the cleartext password of the new user if
+ * everything went well.
+ * 
+ * The new user HAS TO be added to the default group by this
+ * function!
+ */
+function auth_createUser($user,$name,$mail){
+  global $conf;
+
+  $users = auth_loadUserData();
+  if(isset($users[$user])) return false;
+
+  $pass = auth_pwgen();
+  $userline = join(':',array($user,
+                             md5($pass),
+                             $name,
+                             $mail,
+                             $conf['defaultgroup']));
+  $userline .= "\n";
+  $fh = fopen('conf/users.auth','a');
+  if($fh){
+    fwrite($fh,$userline);
+    fclose($fh);
+    return $pass;
+  }
+  msg('The users.auth file is not writable. Please inform the Wiki-Admin',-1);
+  return null;
+}
+
+/**
+ * used by the plaintext auth functions
+ * loads the user file into a datastructure
+ */
+function auth_loadUserData(){
+  $data = array();
+  $lines = file('conf/users.auth');
+  foreach($lines as $line){
+    $line = preg_replace('/#.*$/','',$line); //ignore comments
+    $line = trim($line);
+    if(empty($line)) continue;
+
+    $row    = split(":",$line,5);
+    $groups = split(",",$row[4]);
+    $data[$row[0]]['pass'] = $row[1];
+    $data[$row[0]]['name'] = urldecode($row[2]);
+    $data[$row[0]]['mail'] = $row[3];
+    $data[$row[0]]['grps'] = $groups;
+  }
+  return $data;
+}
+
+?>