source: plugins/efiMetadatas/inc/class.efimetadatas.php @ 1989

<?php
# -- BEGIN LICENSE BLOCK ----------------------------------
# This file is part of efiMetadatas, a plugin for Dotclear 2.
# 
# Copyright (c) 2009 JC Denis and contributors
# jcdenis@gdwd.com
# 
# Licensed under the GPL version 2.0 license.
# A copy of this license is available in LICENSE file or at
# http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
# -- END LICENSE BLOCK ------------------------------------


class efiMetadatas
{
     public static function imgSource($core,$subject,$size='')
     {
          # Path and url
          $p_url = $core->blog->settings->public_url;
          $p_site = preg_replace('#^(.+?//.+?)/(.*)$#','$1',$core->blog->url);
          $p_root = $core->blog->public_path;

          # Image pattern
          $pattern = '(?:'.preg_quote($p_site,'/').')?'.preg_quote($p_url,'/');
          $pattern = sprintf('/<img.+?src="%s(.*?\.(?:jpg|gif|png))"[^>]+/msu',$pattern);

          # No image
          if (!preg_match_all($pattern,$subject,$m)) return;

          $src = $thb = $alt = false;
          $alt = $metas = $thumb = '';
          $allowed_ext = array('.jpg','.JPG','.png','.PNG','.gif','.GIF');

          # Loop through images
          foreach ($m[1] as $i => $img)
          {
               $src = false;
               $info = path::info($img);
               $base = $info['base'];
               $ext = $info['extension'];

               # Not original
               if (preg_match('/^\.(.+)_(sq|t|s|m)$/',$base,$mbase))
               {
                    $base = $mbase[1];
               }

               # Full path
               $f = $p_root.'/'.$info['dirname'].'/'.$base;

               # Find extension
               foreach($allowed_ext as $end)
               {
                    if (file_exists($f.$end))
                    {
                         $src = $f.$end;
                         break;
                    }
               }

               # No file
               if (!$src) continue;

               # Find thumbnail
               if (!empty($size))
               {
                    $t = $p_root.'/'.$info['dirname'].'/.'.$base.'_'.$size.'.jpg';
                    if (file_exists($t))
                    {
                         $thb = $p_url.(dirname($img) != '/' ? dirname($img) : '').'/.'.$base.'_'.$size.'.jpg';
                    }
               }

               # Find image description
               if (preg_match('/alt="([^"]+)"/',$m[0][$i],$malt))
               {
                    $alt = $malt[1];
               }
               break;
          }
          
          return array('source' => $src, 'thumb' => $thb, 'title' => $alt);
     }

     public static function imgMeta($core,$src)
     {
          $metas = array(
               'Title' => array(__('Title'),''),
               'Description' => array(__('Description'),''),
               'Location' => array(__('Location'),''),
               'DateTimeOriginal' => array(__('Date'),''),
               'Make' => array(__('Manufacturer'),''),
               'Model' => array(__('Model'),''),
               'Lens' => array(__('Lens'),''),
               'ExposureProgram' => array(__('Program'),''),
               'Exposure' => array(__('Speed'),''),
               'FNumber' => array(__('Aperture'),''),
               'ISOSpeedRatings' => array(__('ISO'),''),
               'FocalLength' => array(__('Focal'),''),
               'ExposureBiasValue' => array(__('Exposure Bias'),''),
               'MeteringMode' => array(__('Metering mode'),'')
          );

          $exp_prog = array(
               0 => __('Not defined'),
               1 => __('Manual'),
               2 => __('Normal program'),
               3 => __('Aperture priority'),
               4 => __('Shutter priority'),
               5 => __('Creative program'),
               6 => __('Action program'),
               7 => __('Portait mode'),
               8 => __('Landscape mode')
          );

          $met_mod = array(
               0 => __('Unknow'),
               1 => __('Average'),
               2 => __('Center-weighted average'),
               3 => __('Spot'),
               4 => __('Multi spot'),
               5 => __('Pattern'),
               6 => __('Partial'),
               7 => __('Other')
          );

          if (!$src || !file_exists($src)) return $metas;

          $m = imageMeta::readMeta($src);

          # Title
          if (!empty($m['Title']))
          {
               $metas['Title'][1] = html::escapeHTML($m['Title']);
          }

          # Description
          if (!empty($m['Description']))
          {
               if (!empty($m['Title']) && $m['Title'] != $m['Description'])
               {
                    $metas['Description'][1] = html::escpeHTML($m['Description']);
               }
          }

          # Location
          if (!empty($m['City']))
          {
               $metas['Location'][1] .= html::escapeHTML($m['City']);
          }
          if (!empty($m['City']) && !empty($m['country']))
          {
               $metas['Location'][1] .= ', ';
          }
          if (!empty($m['country']))
          {
               $metas['Location'][1] .= html::escapeHTML($m['Country']);
          }
          
          # DateTimeOriginal
          if (!empty($m['DateTimeOriginal']))
          {
               $dt_ft = $core->blog->settings->date_format.', '.$core->blog->settings->time_format;
               $dt_tz = $core->blog->settings->blog_timezone;
               $metas['DateTimeOriginal'][1] = dt::dt2str($dt_ft,$m['DateTimeOriginal'],$dt_tz);
          }

          # Make
          if (isset($m['Make']))
          {
               $metas['Make'][1] = html::escapeHTML($m['Make']);
          }

          # Model
          if (isset($m['Model']))
          {
               $metas['Model'][1] = html::escapeHTML($m['Model']);
          }

          # Lens
          if (isset($m['Lens']))
          {
               $metas['Lens'][1] = html::escapeHTML($m['Lens']);
          }
          
          # ExposureProgram
          if (isset($m['ExposureProgram']))
          {
               $metas['ExposureProgram'][1] = isset($exp_prog[$m['ExposureProgram']]) ?
               $exp_prog[$m['ExposureProgram']] : $m['ExposureProgram'];
          }

          # Exposure
          if (!empty($m['Exposure']))
          {
               $metas['Exposure'][1] = $m['Exposure'].'s';
          }

          # FNumber
          if (!empty($m['FNumber']))
          {
               $ap = sscanf($m['FNumber'],'%d/%d');
               $metas['FNumber'][1] = $ap ? 'f/'.( $ap[0] / $ap[1]) : $m['FNumber'];
          }

          # ISOSpeedRatings
          if (!empty($m['ISOSpeedRatings']))
          {
               $metas['ISOSpeedRatings'][1] = $m['ISOSpeedRatings'];
          }

          # FocalLength
          if (!empty($m['FocalLength']))
          {
               $fl = sscanf($m['FocalLength'],'%d/%d');
               $metas['FocalLength'][1] = $fl ? $fl[0]/$fl[1].'mm' : $m['FocalLength'];
          }

          # ExposureBiasValue
          if (isset($m['ExposureBiasValue']))
          {
               $metas['ExposureBiasValue'][1] = $m['ExposureBiasValue'];
          }

          # MeteringMode
          if (isset($m['MeteringMode']))
          {
               $metas['MeteringMode'][1] = isset($met_mod[$m['MeteringMode']]) ?
               $exp_prog[$m['MeteringMode']] : $m['MeteringMode'];
          }

          return $metas;
     }
}
?>