/** * Resizes the image with the given id according to the configured max width and height settings * renders a json response indicating success/failure and dies */ function bulk_resize_resize_image() { bulk_resize_verify_permission(); global $wpdb; $id = intval($_POST['id']); if (!$id) { $results = array('success' => false, 'message' => 'Missing ID Parameter'); echo json_encode($results); die; } // @TODO: probably doesn't need the join...? $query = $wpdb->prepare("select\n\t\t\t\t\t{$wpdb->posts}.ID as ID,\n\t\t\t\t\t{$wpdb->posts}.guid as guid,\n\t\t\t\t\t{$wpdb->postmeta}.meta_value as file_meta\n\t\t\t\t\tfrom {$wpdb->posts}\n\t\t\t\t\tinner join {$wpdb->postmeta} on {$wpdb->posts}.ID = {$wpdb->postmeta}.post_id and {$wpdb->postmeta}.meta_key = %s\n\t\t\t\t\twhere {$wpdb->posts}.ID = %d\n\t\t\t\t\tand {$wpdb->posts}.post_type = %s\n\t\t\t\t\tand {$wpdb->posts}.post_mime_type like %s", array('_wp_attachment_metadata', $id, 'attachment', 'image%')); $images = $wpdb->get_results($query); if ($images) { $image = $images[0]; $meta = unserialize($image->file_meta); $uploads = wp_upload_dir(); $oldPath = $uploads['basedir'] . "/" . $meta['file']; $maxW = bulk_resize_get_option('bulk_resize_max_width', _DEFAULT_MAX_WIDTH); $maxH = bulk_resize_get_option('bulk_resize_max_height', _DEFAULT_MAX_HEIGHT); if (file_exists($oldPath)) { list($oldW, $oldH) = @getimagesize($oldPath); } if ($oldW > $maxW && $maxW > 0 || $oldH > $maxH && $maxH > 0) { $quality = bulk_resize_get_option('bulk_resize_quality', _DEFAULT_QUALITY); list($newW, $newH) = wp_constrain_dimensions($oldW, $oldH, $maxW, $maxH); $resizeResult = image_resize($oldPath, $newW, $newH, false, null, null, $quality); // $resizeResult = new WP_Error('invalid_image', __('Could not read image size'), $oldPath); // uncommend to debug fail condition if (!is_wp_error($resizeResult)) { $newPath = $resizeResult; if ($newPath != $oldPath && file_exists($oldPath) && !is_dir($oldPath)) { // remove original and replace with re-sized image unlink($oldPath); rename($newPath, $oldPath); $meta['width'] = $newW; $meta['height'] = $newH; update_post_meta($image->ID, '_wp_attachment_metadata', $meta); $results = array('success' => true, 'id' => $id, 'message' => '<strong>OK:</strong> ' . $oldPath); } } else { $results = array('success' => false, 'id' => $id, 'message' => '<strong>ERROR:</strong> ' . $oldPath . ' (' . htmlentities($resizeResult->get_error_message()) . ')'); } } else { $results = array('success' => true, 'id' => $id, 'message' => '<strong>SKIPPED:</strong> <span style="color:#777;">' . $oldPath . '</span> <em style="color:#21759B">(Resize not required)</em>'); } } else { $results = array('success' => false, 'id' => $id, 'message' => '<strong>ERROR:</strong> (Attachment with ID of ' . htmlentities($id) . ' not found)'); } echo json_encode($results); die; // required by wordpress }
/** * Render the site settings form. This is processed by * WordPress built-in options persistance mechanism */ function bulk_resize_settings_page_form() { ?> <form method="post" action="options.php" style="width:300px; padding: 0 20px; margin: 20px 20px 0 0 ; float: left; background: #f6f6f6; border: 1px solid #e5e5e5; "> <h2 style="margin-top: 0px;">Settings</h2> <?php settings_fields('bulk-resize-settings-group'); ?> <h4>Posts, Pages, Custom Post Types</h4> W: <input type="text" style="width:40px;" name="bulk_resize_max_width" value="<?php echo bulk_resize_get_option('bulk_resize_max_width', _DEFAULT_MAX_WIDTH); ?> " /> / H: <input type="text" style="width:40px;" name="bulk_resize_max_height" value="<?php echo bulk_resize_get_option('bulk_resize_max_height', _DEFAULT_MAX_HEIGHT); ?> " /> (Enter 0 to disable) <h4>Images uploaded directly to the Media Library</h4> W: <input type="text" style="width:40px;" name="bulk_resize_max_width_library" value="<?php echo bulk_resize_get_option('bulk_resize_max_width_library', _DEFAULT_MAX_WIDTH); ?> " /> / H: <input type="text" style="width:40px;" name="bulk_resize_max_height_library" value="<?php echo bulk_resize_get_option('bulk_resize_max_height_library', _DEFAULT_MAX_HEIGHT); ?> " /> (Enter 0 to disable) <h4>Images uploaded elsewhere (Theme headers, backgrounds, logos, etc)</h4> W: <input type="text" style="width:40px;" name="bulk_resize_max_width_other" value="<?php echo bulk_resize_get_option('bulk_resize_max_width_other', _DEFAULT_MAX_WIDTH); ?> " /> / H: <input type="text" style="width:40px;" name="bulk_resize_max_height_other" value="<?php echo bulk_resize_get_option('bulk_resize_max_height_other', _DEFAULT_MAX_HEIGHT); ?> " /> (Enter 0 to disable) <h4>JPG image quality</h4> <select name="bulk_resize_quality"> <?php $q = bulk_resize_get_option('bulk_resize_quality', _DEFAULT_QUALITY); for ($x = 50; $x <= 100; $x = $x + 10) { echo "<option" . ($q == $x ? " selected='selected'" : "") . ">{$x}</option>"; } ?> </select> (WordPress default is 90) <h4>Convert BMP To JPG</h4> <select name="bulk_resize_bmp_to_jpg"> <option <?php if (bulk_resize_get_option('bulk_resize_bmp_to_jpg', _DEFAULT_BMP_TO_JPG) == "1") { echo "selected='selected'"; } ?> value="1">Yes</option> <option <?php if (bulk_resize_get_option('bulk_resize_bmp_to_jpg', _DEFAULT_BMP_TO_JPG) == "0") { echo "selected='selected'"; } ?> value="0">No</option> </select> <p class="submit"><input type="submit" class="button-primary" value="<?php _e('Save Changes'); ?> " /></p> </form> <?php }
/** * If the uploaded image is a bmp this function handles the details of converting * the bmp to a jpg, saves the new file and adjusts the params array as necessary * * @param array $params */ function bulk_resize_bmp_to_jpg($params) { include_once 'functions/imagecreatefrombmp.php'; $bmp = imagecreatefrombmp($params['file']); // we need to change the extension from .bmp to .jpg so we have to ensure it will be a unique filename $uploads = wp_upload_dir(); $oldFileName = basename($params['file']); $newFileName = basename(str_ireplace(".bmp", ".jpg", $oldFileName)); $newFileName = wp_unique_filename($uploads['path'], $newFileName); $quality = bulk_resize_get_option('bulk_resize_quality', _DEFAULT_QUALITY); if (imagejpeg($bmp, $uploads['path'] . '/' . $newFileName, $quality)) { // conversion succeeded. remove the original bmp & remap the params unlink($params['file']); $params['file'] = $uploads['path'] . '/' . $newFileName; $params['url'] = $uploads['url'] . '/' . $newFileName; $params['type'] = 'image/jpeg'; } else { unlink($params['file']); return wp_handle_upload_error($oldPath, "Oh Snap! Bulk Resize Media was Unable to process the BMP file. " . "If you continue to see this error you may need to disable the BMP-To-JPG " . "feature in Bulk Resize Media settings."); } return $params; }