NP_gallery/tags/v0.95/gallery/functions.php

   1 <?php\r
   2 //support functions for NP_gallery\r
   3 \r
   4 function generateLink($type,$vars = 'date') {\r
   5         global $manager,$CONF,$NPG_CONF;\r
   6         $base = 'action.php?action=plugin&amp;name=gallery&amp;type=';\r
   7         switch($type) {\r
   8                 case 'list':\r
   9                         $extra['sort'] = $vars;\r
  10                         $link = NP_Gallery::makelink('list',$extra);\r
  11                         break;\r
  12                 case 'addAlbumF':\r
  13                 case 'finaldeletepicture': \r
  14                         $link = NP_Gallery::makelink($type);\r
  15                         break;\r
  16                 case 'editAlbumF': \r
  17                         $link = $CONF['PluginURL'].'gallery/index.php?action=album&amp;id='.$vars;\r
  18                         break;\r
  19                 case 'item': \r
  20                 case 'album': \r
  21                         $extra['sort'] = $NPG_CONF['defaultorder'];\r
  22                         $link = NP_Gallery::makelink('album',$extra);\r
  23                 case 'editPictureF':\r
  24                 case 'deletePictureF':\r
  25                         $extra['id'] = $vars;\r
  26                         $link = NP_Gallery::makelink($type,$extra);\r
  27                         break;\r
  28                 case 'addPictF': $link = $CONF['PluginURL'].'gallery/add_picture.php?type=firststage&amp;id='.$vars;\r
  29                         break;\r
  30                 case 'batchaddPictF': $link = $CONF['PluginURL'].'gallery/add_picture.php?type=firststage';\r
  31                         break;\r
  32                 default: //$link = $base.$type;\r
  33                         break;\r
  34         }\r
  35         return $link;\r
  36 }\r
  37 \r
  38 \r
  39 function resizeImage($orig_filename, $target_w, $target_h, $target_filename) {\r
  40         global $NPG_CONF, $DIR_NUCLEUS;\r
  41         \r
  42         $abs_dir = substr($DIR_NUCLEUS,0,strlen($DIR_NUCLEUS) - 8);\r
  43         \r
  44         if(!$NPG_CONF) {\r
  45                 $NPG_CONF = getNPGConfig();\r
  46                 echo 'NPG_CONF not defined in resizeImage<br />';\r
  47         }\r
  48         \r
  49         if($NPG_CONF['graphics_library'] == 'gd') {\r
  50 \r
  51                 $src_image = imagecreatefromjpeg($abs_dir.$orig_filename);\r
  52                 \r
  53                 $old_x=imageSX($src_image);\r
  54                 $old_y=imageSY($src_image);\r
  55                 \r
  56                 //return original image if original image is smaller than resized dimensions\r
  57                 if ($old_x <= $target_w && $old_y <= $target_h) return $orig_filename;\r
  58                 \r
  59                 //resize\r
  60                 if ($old_x > $old_y) {\r
  61                         $thumb_w=$target_w;\r
  62                         $thumb_h=$old_y*($target_w/$old_x);\r
  63                         if($thumb_h > $target_h) {\r
  64                                 $thumb_w=$old_x*($target_h/$old_y);\r
  65                                 $thumb_h=$target_h;\r
  66                         }\r
  67                 }\r
  68                 if ($old_x < $old_y) {\r
  69                         $thumb_w=$old_x*($target_h/$old_y);\r
  70                         $thumb_h=$target_h;\r
  71                         if($thumb_w > $target_w) {\r
  72                                 $thumb_w=$target_w;\r
  73                                 $thumb_h=$old_y*($target_w/$old_x);\r
  74                         }\r
  75                 }\r
  76                 if ($old_x == $old_y) {\r
  77                         if($target_w > $target_h) {\r
  78                                 $thumb_w=$old_x*($target_w/$old_y);\r
  79                                 $thumb_h=$target_h;\r
  80                         } else  {\r
  81                                 $thumb_w=$target_w;\r
  82                                 $thumb_h=$old_y*($target_h/$old_x);\r
  83                         }\r
  84                 } \r
  85 \r
  86                 $dst_image=ImageCreateTrueColor($thumb_w,$thumb_h);\r
  87                 imagecopyresampled($dst_image,$src_image,0,0,0,0,$thumb_w,$thumb_h,$old_x,$old_y); \r
  88                 \r
  89                 if(!imagejpeg($dst_image,$abs_dir.$target_filename,90)) return NULL;\r
  90                 \r
  91                 imagedestroy($dst_image);\r
  92                 imagedestroy($src_image);\r
  93         \r
  94                 return $target_filename;\r
  95                 \r
  96         } elseif ($NPG_CONF['graphics_library'] == 'im') {\r
  97                 \r
  98                 //code modified from coppermine photo gallery -- only the non-widows portion was tested, the windows portion was added to the coppermine code so that imagemagick would work even if installed in c:/program files\r
  99                 $imgFile = escapeshellarg($abs_dir.$orig_filename);\r
 100                 $output = array();\r
 101                 $target_file_esc = escapeshellarg($abs_dir.$target_filename);\r
 102                 \r
 103                 if (eregi("win",$_ENV['OS'])) {\r
 104                 $imgFile = str_replace("'","\"" ,$imgFile );\r
 105                          $cmd = "\"".str_replace("\\","/", $NPG_CONF['im_path'])."convert\" -quality {$NPG_CONF['im_quality']} {$NPG_CONF['im_options']} -resize {$target_w}x{$target_h} ".str_replace("\\","/" ,$imgFile )." ".str_replace("\\","/" ,$target_file_esc );\r
 106                          exec ("\"$cmd\"", $output, $retval);\r
 107                 } else {\r
 108                         $cmd = "{$NPG_CONF['im_path']}convert -quality {$NPG_CONF['im_quality']} {$NPG_CONF['im_options']} -resize {$target_w}x{$target_h} $imgFile $target_file_esc";\r
 109                         exec ($cmd, $output, $retval);\r
 110                 }\r
 111                 \r
 112                 //todo: check for errors\r
 113                 return $target_filename;\r
 114 \r
 115         }\r
 116         else return false;\r
 117 }\r
 118 \r
 119 \r
 120 function allowedTemplateTags($template) {\r
 121         switch ($template) {\r
 122                 case 'LIST_HEADER':\r
 123                 case 'LIST_FOOTER':\r
 124                         $tags='Allowed tags: breadcrumb, sortbytitle, sortbydescription, sortbyowner, sortbymodified, '\r
 125                                         .'sortbynumber, addalbumlink, addpicturelink. Allowed condition(if) tags: canaddalbum, canaddpicture';\r
 126                         break;\r
 127                 case 'LIST_BODY':\r
 128                         $tags='Allowed tags: albumlink, description, ownername, modified(date format), numberofimages';\r
 129                         break;\r
 130                 case 'ALBUM_HEADER':\r
 131                 case 'ALBUM_FOOTER':\r
 132                         $tags='Allowed tags: breadcrumb, editalbumlink, addpicturelink. Allowed condition(if) tags: caneditalbum, canaddpicture';\r
 133                         break;\r
 134                 case 'ALBUM_BODY':\r
 135                         $tags='Allowed tags: picturelink, thumbnail, picturetitle, centeredtopmargin(height,offset), pictureviews';\r
 136                         break;\r
 137                 case 'ITEM_HEADER':\r
 138                 case 'ITEM_FOOTER':\r
 139                 case 'ITEM_BODY':\r
 140                         $tags='Allowed tags: breadcrumb, nextlink, previouslink, fullsizelink, width, height, intermediatepicture, owner, date(format), editpicturelink, deletepicturelink, tooltips, id. Allowed condition(if) tags: caneditpicture';\r
 141                         break;\r
 142                 default:\r
 143                         break;\r
 144         }\r
 145         return $tags;\r
 146 }\r
 147 function getNPGConfig() {\r
 148         $result = mysql_query('select * from '.sql_table('plug_gallery_config') );\r
 149         if($result) {\r
 150                 while ($row = mysql_fetch_assoc($result)) {\r
 151                         $npg_config[$row['oname']] = $row['ovalue'];\r
 152                 }\r
 153         }\r
 154         return $npg_config;\r
 155 }\r
 156 \r
 157 function setNPGoption($oname, $ovalue) {\r
 158         $oname=addslashes($oname);\r
 159         $ovalue=addslashes($ovalue);\r
 160         $result = mysql_query("select * from ".sql_table('plug_gallery_config')." where oname='$oname'" );\r
 161         if(@ mysql_num_rows($result)) {\r
 162                 sql_query("update ".sql_table('plug_gallery_config')." set ovalue='$ovalue' where oname='$oname'");\r
 163         } else {\r
 164                 sql_query("insert into ".sql_table('plug_gallery_config')." values ('$oname', '$ovalue' )");\r
 165         }\r
 166 }\r
 167 \r
 168 function database_cleanup() {\r
 169         //check numberofimages for each album\r
 170         $result = mysql_query("select count(*) as noi, albumid from ".sql_table('plug_gallery_picture')." group by albumid" );\r
 171         if($result) {\r
 172                 while ($row = mysql_fetch_assoc($result)) {\r
 173                         $result2 = mysql_query("select numberofimages from ".sql_table('plug_gallery_album')." where albumid = ".intval($row['albumid']));\r
 174                         $row2 = mysql_fetch_assoc($result2);\r
 175                         if($row2['numberofimages'] <> $row['noi']) {\r
 176                                 sql_query("update ".sql_table('plug_gallery_album')." set numberofimages=".intval($row['noi'])." where albumid = ".intval($row['albumid']));\r
 177                         }\r
 178                 }\r
 179         }\r
 180         \r
 181         //if picture is not in database, either give choice for deleting it or adding it to the database\r
 182         \r
 183 }\r
 184 \r
 185 function rethumb($id=0) {\r
 186         global $DIR_NUCLEUS,$NPG_CONF;\r
 187         \r
 188         $abs_dir = $DIR_NUCLEUS.'../';\r
 189         $abs_dir = substr($DIR_NUCLEUS,0,strlen($DIR_NUCLEUS) - 8);\r
 190         \r
 191         //redo the thumbnails and intermediate images\r
 192         if($id) $album = ' where albumid='.invtal($id);\r
 193         $query = 'select * from '.sql_table('plug_gallery_picture').$album;\r
 194         $result = sql_query($query);\r
 195 \r
 196         echo 'Resizing images . . . ';\r
 197         $timestart = microtime();\r
 198         while($row=mysql_fetch_object($result)) {\r
 199                 //check if file exists:\r
 200                 \r
 201                 if(is_file($abs_dir.$row->filename)) {\r
 202                         //make new thumbnail\r
 203                         if($new_thumb = resizeImage($row->filename, $NPG_CONF['thumbwidth'], $NPG_CONF['thumbheight'], $row->thumb_filename)) {\r
 204                                 sql_query('update '.sql_table('plug_gallery_picture').' set thumb_filename=\''.addslashes($new_thumb).'\' where pictureid='.intval($row->pictureid));\r
 205                         }\r
 206                         else echo '<br/>file: '.$abs_dir.$row->thumb_filename.' could not be resized<br/>';\r
 207                         //make new intermediate picture\r
 208                         if($new_thumb = resizeImage($row->filename, $NPG_CONF['maxwidth'], $NPG_CONF['maxheight'], $row->int_filename)) {\r
 209                                 sql_query('update '.sql_table('plug_gallery_picture').' set int_filename=\''.addslashes($new_thumb).'\' where pictureid='.intval($row->pictureid));\r
 210 \r
 211                         }\r
 212                         else echo '<br/>file: '.$abs_dir.$row->int_filename.' could not be resized<br/>';\r
 213                 } else echo '<br/>file: '.$abs_dir.$row->filename.' does not exist -- no action taken<br/>';\r
 214         }\r
 215         echo 'Done<br/>';\r
 216         $timeend = microtime();\r
 217         $diff = number_format(((substr($timeend,0,9)) + (substr($timeend,-10)) - (substr($timestart,0,9)) - (substr($timestart,-10))),4);\r
 218         echo "Execution time: $diff s <br/>";\r
 219 }\r
 220 function GDisPresent() {\r
 221         if(function_exists('ImageCreateTrueColor')) return true;\r
 222 }\r
 223 \r
 224 function IMisPresent() {\r
 225         global $NPG_CONF;\r
 226         \r
 227         $cmd = "{$NPG_CONF['im_path']}convert -version";\r
 228         exec ($cmd, $output, $retval);\r
 229         if($retval == 0) return true; \r
 230         return false;\r
 231 }\r
 232 \r
 233 function getIMversion() {\r
 234         global $NPG_CONF;\r
 235         \r
 236         $cmd = "{$NPG_CONF['im_path']}convert -version";\r
 237         exec ($cmd, $output, $retval);\r
 238         if($retval == 0) {\r
 239                 $pieces = explode(" ", $output[0]);\r
 240                 $imversion = $pieces[2];\r
 241                 return $imversion;\r
 242         }\r
 243         return false;\r
 244 }\r
 245 \r
 246 function checkgalleryconfig() {\r
 247         global $NP_BASE_DIR,$NPG_CONF;\r
 248         \r
 249         $status = array();\r
 250         \r
 251         if((GDispresent() && $NPG_CONF['graphics_library'] == 'gd') || (IMisPresent() && $NPG_CONF['graphics_library'] == 'im')) {\r
 252                 $status['configured'] = true;\r
 253         } else {\r
 254                 $status['message'] = 'Graphics engine not configured!<br/>';\r
 255         }\r
 256         \r
 257         //check for presence of NPGallery skin\r
 258         $res = sql_query('select sdname, scontent from '.sql_table('skin_desc').', '.sql_table('skin').' where sdesc=sdnumber and stype="index" and sdname="NPGallery" LIMIT 1');\r
 259         if(!$res) {\r
 260                 $status['message'] .= 'mysql error checking for NPGallery skin: '.mysql_error().'<br/>';\r
 261         }\r
 262         else if(!mysql_num_rows($res)) {\r
 263                 $status['message'] .= 'NPGallery skin was not found<br/>';\r
 264         }\r
 265         else {\r
 266                 $row = mysql_fetch_object($res);\r
 267                 $haystack = stripslashes($row->scontent);\r
 268                 $s = stristr($haystack,'<%gallery');\r
 269                 if(!$s) {\r
 270                         $status['message'] .= '<%gallery%> tag not found in NPGallery skin<br/>';\r
 271                 }\r
 272         }\r
 273         \r
 274         //check for directory and directory permissions\r
 275         $mediadir = $NP_BASE_DIR.$NPG_CONF['galleryDir'];\r
 276         if (!@is_dir($mediadir)) {\r
 277                 $error = 'Gallery directory not found<br/>';\r
 278                 $oldumask = umask(0000);\r
 279                 if (!@mkdir($mediadir, 0777)) {\r
 280                         $error = 'Cannot create gallery directory<br/>';\r
 281                 }\r
 282                 else {\r
 283                         $error = NULL;\r
 284                         umask($oldumask);                               \r
 285                 }\r
 286                 $status['message'] .= $error;\r
 287         }\r
 288         else {\r
 289                 if (!is_writeable($mediadir)) \r
 290                         $status['message'] = 'Gallery directory: '.$mediadir.' not writable';\r
 291         }\r
 292         \r
 293         if($status['message']) $status['configured'] = false; else $status['configured'] = true;\r
 294         \r
 295         return $status;\r
 296         \r
 297 }\r
 298 \r
 299 function converttimestamp($d) {\r
 300         if(strlen($d) > 14) list($year, $month, $day, $hour, $minute, $second) = sscanf($d, "%4u-%2u-%2u %2u:%2u:%2u");\r
 301                         else list($year, $month, $day, $hour, $minute, $second) = sscanf($d, "%4u%2u%2u%2u%2u%2u");\r
 302         $rd = mktime(intval($hour), intval($minute), intval($second), intval($month), intval($day), intval($year));\r
 303         return $rd;\r
 304 }\r
 305 \r
 306 ?>\r