Initial revision

git-svn-id: http://piwigo.org/svn/trunk@2 68402e56-0260-453c-a942-63ccdbb3a9ee

1 files changed, 302 insertions, 0 deletions

diff --git a/include/functions_user.inc.php b/include/functions_user.inc.php
new file mode 100644
index 000000000..48160f113
--- /dev/null
+++ b/include/functions_user.inc.php
@@ -0,0 +1,302 @@
+<?php
+/***************************************************************************
+ *                           functions_user.inc.php                        *
+ *                            --------------------                         *
+ *   application          : PhpWebGallery 1.3                              *
+ *   author               : Pierrick LE GALL <pierrick@z0rglub.com>        *
+ *                                                                         *
+ ***************************************************************************
+
+ ***************************************************************************
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation;                                         *
+ *                                                                         *
+ ***************************************************************************/
+function validate_mail_address( $mail_address )
+{
+  global $lang;
+
+  $output = '';
+  // le mail doit être conforme à qqch du type : nom@serveur.com
+  if ( $mail_address != ''
+       and !ereg( "([_a-z0-9-]+(\.[_a-z0-9-]+)*@[a-z0-9-]+(\.[a-z0-9-]+)+)",
+                 $mail_address ) )
+  {
+    $output = $lang['reg_err_mail_address'];
+  }
+
+  return $output;
+}
+
+function register_user( $login, $password, $password_conf,
+                        $mail_address, $status = 'visiteur' )
+{
+  global $prefixeTable;
+
+  $error = array();
+  $i = 0;
+  // le login ne doit pas
+  //      1. être vide
+  //      2. commencer ou se terminer par un espace
+  //      3. comporter les caractères ' ou "
+  //      4. être déjà utilisé
+  if ( $login == '' )
+  {
+    $error[$i++] = $lang['reg_err_login1'];
+  }
+  if ( ereg( "^.* $", $login) )
+  {
+    $error[$i++] = $lang['reg_err_login2'];
+  }
+  if ( ereg( "^ .*$", $login ) )
+  {
+    $error[$i++] = $lang['reg_err_login3'];
+  }
+  if ( ereg( "'", $login ) or ereg( "\"", $login ) )
+  {
+    $error[$i++] = $lang['reg_err_login4'];
+  }
+  else
+  {
+    $query = 'select id';
+    $query.= ' from '.$prefixeTable.'users';
+    $query.= " where pseudo = '".$login."';";
+    $result = mysql_query( $query );
+    if ( mysql_num_rows( $result ) > 0 )
+    {
+      $error[$i++] = $lang['reg_err_login5'];
+    }
+  }
+  // on vérifie que le password rentré correspond bien
+  // à la confirmation faite par l'utilisateur
+  if ( $password != $password_conf )
+  {
+    $error[$i++] = $lang['reg_err_pass'];
+  }
+
+  $error_mail_address = validate_mail_address( $mail_address );
+  if ( $error_mail_address != '' )
+  {
+    $error[$i++] = $error_mail_address;
+  }
+  
+  // on enregistre le nouvel utilisateur si aucune
+  //erreur détectée dans les paramètres
+  if ( sizeof( $error ) == 0 )
+  {
+    // 1.récupération des valeurs par défaut de l'application
+    $infos = array( 'nb_image_line', 'nb_line_page', 'theme', 'language',
+                    'maxwidth', 'maxheight', 'expand', 'show_nb_comments',
+                    'short_period', 'long_period', 'template' );
+    $query = 'select';
+    for ( $i = 0; $i < sizeof( $infos ); $i++ )
+    {
+      if ( $i > 0 )
+      {
+        $query.= ',';
+      }
+      else
+      {
+        $query.= ' ';
+      }
+      $query.= $infos[$i];
+    }
+    $query.= ' from '.$prefixeTable.'users';
+    $query.= " where pseudo = 'visiteur';";
+    $row = mysql_fetch_array( mysql_query( $query ) );
+    // 2.ajout du nouvel utilisateur
+    $query = 'insert into '.$prefixeTable.'users';
+    $query.= ' (';
+    $query.= ' pseudo,password,mail_address,status';
+    for ( $i = 0; $i < sizeof( $infos ); $i++ )
+    {
+      $query.= ','.$infos[$i];
+    }
+    $query.= ' values (';
+    $query.= " '".$login."'";
+    $query.= ",'".md5( $password )."'";
+    if ( $mail_address != '' )
+    {
+      $query.= ",'".$mail_address."'";
+    }
+    else
+    {
+      $query.= ',NULL';
+    }
+    $query.= ",'".$status."'";
+    for ( $i = 0; $i < sizeof( $infos ); $i++ )
+    {
+      $query.= ','.$row[$infos[$i]];
+    }
+    $query.= ');';
+    mysql_query( $query );
+    // 3. récupérer l'identifiant de l'utilisateur nouvellement créé
+    $query = 'select id';
+    $query.= ' from '.$prefixeTable.'users';
+    $query.= " where pseudo = '".$login."';";
+    $row = mysql_fetch_array( mysql_query( $query ) );
+    $user_id = $row['id'];
+    // 4.ajouter les restrictions au nouvel utilisateur,
+    //   les mêmes que celles de l'utilisateur par défaut
+    $query = 'select cat_id';
+    $query.= ' from '.$prefixeTable.'restrictions as r';
+    $query.=      ','.$prefixeTable.'users as u ';
+    $query.= ' where u.id = r.user_id';
+    $query.= " and u.pseudo = 'visiteur';";
+    $result = mysql_query( $query );
+    while( $row = mysql_fetch_array( $result ) )
+    {
+      $query = 'insert into '.$prefixeTable.'restrictions';
+      $query.= ' (user_id,cat_id) values';
+      $query.= ' ('.$user_id.','.$row['cat_id'].');';
+      mysql_query ( $query );
+    }
+  }
+  return $error;
+}
+
+function update_user( $user_id, $mail_address, $status,
+                      $use_new_password = false, $password = '' )
+{
+  global $prefixeTable;
+
+  $error = array();
+  $i = 0;
+  
+  $error_mail_address = validate_mail_address( $mail_address );
+  if ( $error_mail_address != '' )
+  {
+    $error[$i++] = $error_mail_address;
+  }
+
+  if ( sizeof( $error ) == 0 )
+  {
+    $query = 'update '.$prefixeTable.'users';
+    $query.= " set status = '".$status."'";
+    if ( $use_new_password )
+    {
+      $query.= ", password = '".md5( $password )."'";
+    }
+    $query.= ', mail_address = ';
+    if ( $mail_address != '' )
+    {
+      $query.= "'".$mail_address."'";
+    }
+    else
+    {
+      $query.= 'NULL';
+    }
+    $query.= ' where id = '.$user_id;
+    $query.= ';';
+    mysql_query( $query );
+  }
+  return $error;
+}
+
+function check_login_authorization()
+{
+  global $user,$lang,$conf,$page;
+  if ( $user['is_the_guest']
+       and ( $conf['acces'] == 'restreint' or $page['cat'] == 'fav' ) )
+  {
+    echo '<div style="text-align:center;">'.$lang['only_members'].'<br />';
+    echo '<a href="./identification.php">'.$lang['ident_title'].'</a></div>';
+    exit();
+  }
+}
+        
+// The function get_restrictions returns an array with the ids of the
+// restricted categories for the user.
+// If the $check_invisible parameter is set to true, invisible categories
+// are added to the restricted one in the array.
+function get_restrictions( $user_id, $user_status, $check_invisible )
+{
+  global $prefixeTable;
+                
+  // 1. getting the ids of the restricted categories
+  $query = "select cat_id";
+  $query.= " from $prefixeTable"."restrictions";
+  $query.= " where user_id = $user_id;";
+  $result = mysql_query( $query );
+  $i = 0;
+  $restriction = array();
+  while ( $row = mysql_fetch_array( $result ) )
+  {
+    $restriction[$i++] = $row['cat_id'];
+  }
+  if ( $check_invisible )
+  {
+    // 2. adding to the restricted categories, the invisible ones
+    if ( $user_status != "admin" )
+    {
+      $query = 'select id';
+      $query.= ' from '.$prefixeTable.'categories';
+      $query.= " where status='invisible';";
+      $result = mysql_query( $query );
+      while ( $row = mysql_fetch_array( $result ) )
+      {
+        $restriction[$i++] = $row['id'];
+      }
+    }
+  }
+  return $restriction;
+}
+
+// The get_all_restrictions function returns an array with all the
+// categories id which are restricted for the user. Including the
+// sub-categories and invisible categories
+function get_all_restrictions( $user_id, $user_status )
+{
+  global $prefixeTable;
+                
+  $restricted_cat = get_restrictions( $user_id, $user_status, true );
+  $i = sizeof( $restricted_cat );
+  for ( $k = 0; $k < sizeof( $restricted_cat ); $k++ )
+  {
+    $sub_restricted_cat = get_subcats_id( $restricted_cat[$k] );
+    for ( $j = 0; $j < sizeof( $sub_restricted_cat ); $j++ )
+    {
+      $restricted_cat[$i++] = $sub_restricted_cat[$j];
+    }
+  }
+  return $restricted_cat;
+}
+
+// The function is_user_allowed returns :
+//      - 0 : if the category is allowed with this $restrictions array
+//      - 1 : if this category is not allowed
+//      - 2 : if an uppercat category is not allowed
+function is_user_allowed( $category_id, $restrictions )
+{
+  global $user,$prefixeTable;
+                
+  $lowest_category_id = $category_id;
+                
+  $is_root = false;
+  while ( !$is_root and !in_array( $category_id, $restrictions ) )
+  {
+    $query = "select id_uppercat";
+    $query.= " from $prefixeTable"."categories";
+    $query.= " where id = $category_id;";
+    $row = mysql_fetch_array( mysql_query( $query ) );
+    if ( $row['id_uppercat'] == "" )
+    {
+      $is_root = true;
+    }
+    $category_id = $row['id_uppercat'];
+  }
+                
+  if ( in_array( $lowest_category_id, $restrictions ) )
+  {
+    return 1;
+  }
+  if ( in_array( $category_id, $restrictions ) )
+  {
+    return 2;
+  }
+  // this user is allowed to go in this category
+  return 0;
+}
+?>
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