diff options
Diffstat (limited to 'admin/include/functions_upload.inc.php')
| -rw-r--r-- | admin/include/functions_upload.inc.php | 264 |
1 files changed, 264 insertions, 0 deletions
diff --git a/admin/include/functions_upload.inc.php b/admin/include/functions_upload.inc.php new file mode 100644 index 000000000..39259ad34 --- /dev/null +++ b/admin/include/functions_upload.inc.php @@ -0,0 +1,264 @@ +<?php +// TODO +// * check md5sum (already exists?) + +include_once(PHPWG_ROOT_PATH.'include/common.inc.php'); +include_once(PHPWG_ROOT_PATH.'include/ws_functions.inc.php'); +include_once(PHPWG_ROOT_PATH.'admin/include/functions.php'); + +// Here is the plan +// +// 1) move uploaded file to upload/2010/01/22/20100122003814-449ada00.jpg +// +// 2) if taller than max_height or wider than max_width, move to pwg_high +// + web sized creation +// +// 3) thumbnail creation from web sized +// +// 4) register in database + +function add_uploaded_file($source_filepath, $original_filename=null, $categories=null, $level=null) +{ + global $conf; + + // current date + list($dbnow) = mysql_fetch_row(pwg_query('SELECT NOW();')); + list($year, $month, $day) = preg_split('/[^\d]/', $dbnow, 4); + + // upload directory hierarchy + $upload_dir = sprintf( + PHPWG_ROOT_PATH.'upload/%s/%s/%s', + $year, + $month, + $day + ); + + // compute file path + $md5sum = md5_file($source_filepath); + $date_string = preg_replace('/[^\d]/', '', $dbnow); + $random_string = substr($md5sum, 0, 8); + $filename_wo_ext = $date_string.'-'.$random_string; + $file_path = $upload_dir.'/'.$filename_wo_ext.'.jpg'; + + prepare_directory($upload_dir); + if (is_uploaded_file($source_filepath)) + { + move_uploaded_file($source_filepath, $file_path); + } + else + { + copy($source_filepath, $file_path); + } + + if ($conf['upload_form_websize_resize'] + and need_resize($file_path, $conf['upload_form_websize_maxwidth'], $conf['upload_form_websize_maxheight'])) + { + $high_path = file_path_for_type($file_path, 'high'); + $high_dir = dirname($high_path); + prepare_directory($high_dir); + + rename($file_path, $high_path); + $high_infos = pwg_image_infos($high_path); + + pwg_image_resize( + $high_path, + $file_path, + $conf['upload_form_websize_maxwidth'], + $conf['upload_form_websize_maxheight'], + $conf['upload_form_websize_quality'] + ); + } + + $file_infos = pwg_image_infos($file_path); + + $thumb_path = file_path_for_type($file_path, 'thumb'); + $thumb_dir = dirname($thumb_path); + prepare_directory($thumb_dir); + + pwg_image_resize( + $file_path, + $thumb_path, + $conf['upload_form_thumb_maxwidth'], + $conf['upload_form_thumb_maxheight'], + $conf['upload_form_thumb_quality'] + ); + + $thumb_infos = pwg_image_infos($thumb_path); + + // database registration + $insert = array( + 'file' => isset($original_filename) ? $original_filename : basename($file_path), + 'date_available' => $dbnow, + 'tn_ext' => 'jpg', + 'path' => preg_replace('/^.*?upload/', './upload', $file_path), + 'filesize' => $file_infos['filesize'], + 'width' => $file_infos['width'], + 'height' => $file_infos['height'], + 'md5sum' => $md5sum, + ); + + if (isset($high_infos)) + { + $insert['has_high'] = 'true'; + $insert['high_filesize'] = $high_infos['filesize']; + } + + if (isset($level)) + { + $insert['level'] = $level; + } + + mass_inserts( + IMAGES_TABLE, + array_keys($insert), + array($insert) + ); + + $image_id = mysql_insert_id(); + + if (isset($categories) and count($categories) > 0) + { + associate_images_to_categories( + array($image_id), + $categories + ); + } + + // update metadata from the uploaded file (exif/iptc) + update_metadata(array($image_id=>$file_path)); + + invalidate_user_cache(); + + return $image_id; +} + +function prepare_directory($directory) +{ + if (!is_dir($directory)) { + umask(0000); + $recursive = true; + if (!@mkdir($directory, 0777, $recursive)) + { + die('[prepare_directory] cannot create directory "'.$directory.'"'); + } + } + + if (!is_writable($directory)) + { + // last chance to make the directory writable + @chmod($directory, 0777); + + if (!is_writable($directory)) + { + die('[prepare_directory] directory "'.$directory.'" has no write access'); + } + } + + secure_directory($directory); +} + +function need_resize($image_filepath, $max_width, $max_height) +{ + list($width, $height) = getimagesize($image_filepath); + + if ($width > $max_width or $height > $max_height) + { + return true; + } + + return false; +} + +function pwg_image_resize($source_filepath, $destination_filepath, $max_width, $max_height, $quality) +{ + if (!function_exists('gd_info')) + { + return false; + } + + // extension of the picture filename + $extension = strtolower(get_extension($source_filepath)); + + $source_image = null; + if (in_array($extension, array('jpg', 'jpeg'))) + { + $source_image = @imagecreatefromjpeg($source_filepath); + } + else if ($extension == 'png') + { + $source_image = @imagecreatefrompng($source_filepath); + } + else + { + die('unsupported file extension'); + } + + // width/height + $source_width = imagesx($source_image); + $source_height = imagesy($source_image); + + $ratio_width = $source_width / $max_width; + $ratio_height = $source_height / $max_height; + + // maximal size exceeded ? + if ($ratio_width > 1 or $ratio_height > 1) + { + if ($ratio_width < $ratio_height) + { + $destination_width = ceil($source_width / $ratio_height); + $destination_height = $max_height; + } + else + { + $destination_width = $max_width; + $destination_height = ceil($source_height / $ratio_width); + } + } + else + { + // the image doesn't need any resize! We just copy it to the destination + copy($source_filepath, $destination_filepath); + return true; + } + + $destination_image = imagecreatetruecolor($destination_width, $destination_height); + + imagecopyresampled( + $destination_image, + $source_image, + 0, + 0, + 0, + 0, + $destination_width, + $destination_height, + $source_width, + $source_height + ); + + imagejpeg($destination_image, $destination_filepath, $quality); + // freeing memory ressources + imagedestroy($source_image); + imagedestroy($destination_image); + + // everything should be OK if we are here! + return true; +} + +function pwg_image_infos($path) +{ + list($width, $height) = getimagesize($path); + $filesize = floor(filesize($path)/1024); + + return array( + 'width' => $width, + 'height' => $height, + 'filesize' => $filesize, + ); +} + +function is_valid_image_extension($extension) +{ + return in_array(strtolower($extension), array('jpg', 'jpeg', 'png')); +} +?>
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