Initial revision

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

1 files changed, 286 insertions, 0 deletions

diff --git a/include/functions.inc.php b/include/functions.inc.php
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+++ b/include/functions.inc.php
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+<?php
+/***************************************************************************
+ *                             functions.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;                                         *
+ *                                                                         *
+ ***************************************************************************/
+include( 'functions_user.inc.php' );
+include( 'functions_session.inc.php' );
+include( 'functions_category.inc.php' );
+
+//----------------------------------------------------------- generic functions
+
+// The function get_boolean transforms a string to a boolean value. If the
+// string is "false" (case insensitive), then the boolean value false is
+// returned. In any other case, true is returned.
+function get_boolean( $string )
+{
+  $boolean = true;
+  if ( preg_match( '/^false$/i', $string ) )
+  {
+    $boolean = false;
+  }
+  return $boolean;
+}
+
+// The function array_remove removes a value from the given array if the value
+// existed in this array.
+function array_remove( $array, $value )
+{
+  $i = 0;
+  $output = array();
+  foreach ( $array as $v )
+    {
+      if ( $v != $value )
+      {
+        $output[$i++] = $v;
+      }
+    }
+  return implode( ',', $output );
+}
+
+// The function get_moment returns a float value coresponding to the number
+// of seconds since the unix epoch (1st January 1970) and the microseconds
+// are precised : e.g. 1052343429.89276600
+function get_moment()
+{
+  $t1 = explode( " ", microtime() );
+  $t2 = explode( ".", $t1[0] );
+  $t2 = $t1[1].".".$t2[1];
+  return $t2;
+}
+
+// The function get_elapsed_time returns the number of seconds (with 3
+// decimals precision) between the start time and the end time given.
+function get_elapsed_time( $start, $end )
+{
+  return number_format( $end - $start, 3, '.', ' ').' s';
+}
+
+// - The replace_space function replaces space and '-' characters
+//   by their HTML equivalent  &nbsb; and &minus;
+// - The function does not replace characters in HTML tags
+// - This function was created because IE5 does not respect the
+//   CSS "white-space: nowrap;" property unless space and minus
+//   characters are replaced like this function does.
+function replace_space( $string )
+{
+  //return $string;             
+  $return_string = "";
+  $remaining = $string;
+                
+  $start = 0;
+  $end = 0;
+  $start = strpos ( $remaining, "<" );
+  $end = strpos ( $remaining, ">" );
+  while ( is_numeric( $start ) and is_numeric( $end ) )
+  {
+    $treatment = substr ( $remaining, 0, $start );
+    $treatment = str_replace( " ", "&nbsp;", $treatment );
+    $treatment = str_replace( "-", "&minus;", $treatment );
+    $return_string.= $treatment.substr ( $remaining, $start,
+                                         $end - $start + 1 );
+    $remaining = substr ( $remaining, $end + 1, strlen( $remaining ) );
+    $start = strpos ( $remaining, "<" );
+    $end = strpos ( $remaining, ">" );
+  }
+  $treatment = str_replace( " ", "&nbsp;", $remaining );
+  $treatment = str_replace( "-", "&minus;", $treatment );
+  $return_string.= $treatment;
+                
+  return $return_string;
+}
+
+// get_dirs retourne un tableau contenant tous les sous-répertoires d'un
+// répertoire
+function get_dirs( $rep )
+{
+  $sub_rep = array();
+
+  if ( $opendir = opendir ( $rep ) )
+  {
+    while ( $file = readdir ( $opendir ) )
+    {
+      if ( $file != "." and $file != ".." and is_dir ( $rep.$file ) )
+      {
+        array_push( $sub_rep, $file );
+      }
+    }
+  }
+  return $sub_rep;
+}
+
+// The get_picture_size function return an array containing :
+//      - $picture_size[0] : final width
+//      - $picture_size[1] : final height
+// The final dimensions are calculated thanks to the original dimensions and
+// the maximum dimensions given in parameters.  get_picture_size respects
+// the width/height ratio
+function get_picture_size( $original_width, $original_height,
+                           $max_width, $max_height )
+{
+  $width = $original_width;
+  $height = $original_height;
+  $is_original_size = true;
+                
+  if ( $max_width != "" )
+  {
+    if ( $original_width > $max_width )
+    {
+      $width = $max_width;
+      $height = floor( ( $width * $original_height ) / $original_width );
+    }
+  }
+  if ( $max_height != "" )
+  {
+    if ( $original_height > $max_height )
+    {
+      $height = $max_height;
+      $width = floor( ( $height * $original_width ) / $original_height );
+      $is_original_size = false;
+    }
+  }
+  if ( is_numeric( $max_width ) and is_numeric( $max_height )
+       and $max_width != 0 and $max_height != 0 )
+  {
+    $ratioWidth = $original_width / $max_width;
+    $ratioHeight = $original_height / $max_height;
+    if ( ( $ratioWidth > 1 ) or ( $ratioHeight > 1 ) )
+    {
+      if ( $ratioWidth < $ratioHeight )
+      { 
+        $width = floor( $original_width / $ratioHeight );
+        $height = $max_height;
+      }
+      else
+      { 
+        $width = $max_width; 
+        $height = floor( $original_height / $ratioWidth );
+      }
+      $is_original_size = false;
+    }
+  }
+  $picture_size = array();
+  $picture_size[0] = $width;
+  $picture_size[1] = $height;
+  return $picture_size;
+}
+
+//-------------------------------------------- PhpWebGallery specific functions
+
+// get_languages retourne un tableau contenant tous les languages
+// disponibles pour PhpWebGallery
+function get_languages( $rep_language )
+{
+  $languages = array();
+  $i = 0;
+  if ( $opendir = opendir ( $rep_language ) )
+  {
+    while ( $file = readdir ( $opendir ) )
+    {
+      if ( is_file ( $rep_language.$file )
+           and $file != "index.php"
+           and strrchr ( $file, "." ) == ".php" )
+      {
+        $languages[$i++] =
+          substr ( $file, 0, strlen ( $file )
+                   - strlen ( strrchr ( $file, "." ) ) );
+      }
+    }
+  }
+  return $languages;
+}
+
+// get_themes retourne un tableau contenant tous les "template - couleur"
+function get_themes( $theme_dir )
+{
+  $themes = array();
+  $main_themes = get_dirs( $theme_dir );
+  for ( $i = 0; $i < sizeof( $main_themes ); $i++ )
+  {
+    $colors = get_dirs( $theme_dir.$main_themes[$i].'/' );
+    for ( $j = 0; $j < sizeof( $colors ); $j++ )
+    {
+      array_push( $themes, $main_themes[$i].' - '.$colors[$j] );
+    }
+  }
+  return $themes;
+}
+
+// - The replace_search function replaces a $search string by the search in
+// another color
+// - The function does not replace characters in HTML tags
+function replace_search( $string, $search )
+{
+  //return $string;
+  $style_search = "background-color:white;color:red;";
+  $return_string = "";
+  $remaining = $string;
+
+  $start = 0;
+  $end = 0;
+  $start = strpos ( $remaining, "<" );
+  $end = strpos ( $remaining, ">" );
+  while ( is_numeric( $start ) and is_numeric( $end ) )
+  {
+    $treatment = substr ( $remaining, 0, $start );
+    $treatment = eregi_replace( $search, "<span style=\"".$style_search."\">".
+                                $search."</span>", $treatment );
+    $return_string.= $treatment.substr ( $remaining, $start,
+                                         $end - $start + 1 );
+    $remaining = substr ( $remaining, $end + 1, strlen( $remaining ) );
+    $start = strpos ( $remaining, "<" );
+    $end = strpos ( $remaining, ">" );
+  }
+  $treatment = eregi_replace( $search, "<span style=\"".$style_search."\">".
+                              $search."</span>", $remaining );
+  $return_string.= $treatment;
+                
+  return $return_string;
+}
+
+function database_connection()
+{
+  global $cfgHote,$cfgUser,$cfgPassword,$cfgBase;
+  @mysql_connect( $cfgHote, $cfgUser, $cfgPassword )
+    or die ( "Could not connect to server" );
+  @mysql_select_db( $cfgBase )
+    or die ( "Could not connect to database" );
+}
+
+function pwg_log( $file, $category, $picture = '' )
+{
+  global $conf, $user, $prefixeTable;
+
+  if ( $conf['log'] )
+  {
+    $query = 'insert into '.$prefixeTable.'history';
+    $query.= ' (date,login,IP,file,category,picture) values';
+    $query.= " (".time().", '".$user['pseudo']."'";
+    $query.= ",'".$_SERVER['REMOTE_ADDR']."'";
+    $query.= ",'".$file."','".$category."','".$picture."');";
+    mysql_query( $query );
+  }
+}
+
+function templatize_array( $array, $global_array_name )
+{
+  global $vtp, $handle, $lang, $page, $user, $conf;
+
+  for( $i = 0; $i < sizeof( $array ); $i++ )
+  {
+    $vtp->setGlobalVar( $handle, $array[$i],
+                        ${$global_array_name}[$array[$i]] );
+  }
+}
+?>
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