public function getAudioTitle()
 {
     $file = filter_input(INPUT_POST, 'file');
     if (strpos($file, '..') !== false) {
         die('');
     }
     $path = ABSPATH . substr($file, strlen(get_site_url()));
     if (is_file($path)) {
         $metadata = wp_read_audio_metadata($path);
         if ($metadata && isset($metadata['title'])) {
             die($metadata['title']);
         } else {
             $fileParts = explode('/', $file);
             die(array_pop($fileParts));
         }
     }
     exit;
 }

 /**
  * Uses wp_read_video_metadata() and wp_read_audio_metadata() to retrieve
  * an embedded image to use as a thumbnail.
  *
  * @param string $ID The attachment ID to retrieve thumbnail from.
  * @param int $pg Unused.
  *
  * @return bool|string  False on failure, URL to thumb on success.
  */
 public function getThumbnail($ID, $pg = 1)
 {
     include_once DG_WPADMIN_PATH . 'includes/media.php';
     $doc_path = get_attached_file($ID);
     $mime_type = get_post_mime_type($ID);
     if (DG_Util::startsWith($mime_type, 'video/')) {
         $metadata = wp_read_video_metadata($doc_path);
     } elseif (DG_Util::startsWith($mime_type, 'audio/')) {
         $metadata = wp_read_audio_metadata($doc_path);
     }
     // unsupported mime type || no embedded image present
     if (!isset($metadata) || empty($metadata['image']['data'])) {
         return false;
     }
     $ext = 'jpg';
     switch ($metadata['image']['mime']) {
         case 'image/gif':
             $ext = 'gif';
             break;
         case 'image/png':
             $ext = 'png';
             break;
     }
     $temp_file = DG_Util::getTempFile($ext);
     if (!($fp = @fopen($temp_file, 'wb'))) {
         DG_Logger::writeLog(DG_LogLevel::Error, __('Could not open file: ', 'document-gallery') . $temp_file);
         return false;
     }
     if (!@fwrite($fp, $metadata['image']['data'])) {
         DG_Logger::writeLog(DG_LogLevel::Error, __('Could not write file: ', 'document-gallery') . $temp_file);
         fclose($fp);
         return false;
     }
     fclose($fp);
     return $temp_file;
 }

/**
 * This handles the file upload POST itself, creating the attachment post.
 *
 * @since 2.5.0
 *
 * @param string $file_id Index into the {@link $_FILES} array of the upload
 * @param int $post_id The post ID the media is associated with
 * @param array $post_data allows you to overwrite some of the attachment
 * @param array $overrides allows you to override the {@link wp_handle_upload()} behavior
 * @return int|WP_Error ID of the attachment or a WP_Error object on failure.
 */
function media_handle_upload($file_id, $post_id, $post_data = array(), $overrides = array('test_form' => false))
{
    $time = current_time('mysql');
    if ($post = get_post($post_id)) {
        if (substr($post->post_date, 0, 4) > 0) {
            $time = $post->post_date;
        }
    }
    $name = $_FILES[$file_id]['name'];
    $file = wp_handle_upload($_FILES[$file_id], $overrides, $time);
    if (isset($file['error'])) {
        return new WP_Error('upload_error', $file['error']);
    }
    $name_parts = pathinfo($name);
    $name = trim(substr($name, 0, -(1 + strlen($name_parts['extension']))));
    $url = $file['url'];
    $type = $file['type'];
    $file = $file['file'];
    $title = $name;
    $content = '';
    if (preg_match('#^audio#', $type)) {
        $meta = wp_read_audio_metadata($file);
        if (!empty($meta['title'])) {
            $title = $meta['title'];
        }
        $content = '';
        if (!empty($title)) {
            if (!empty($meta['album']) && !empty($meta['artist'])) {
                /* translators: 1: audio track title, 2: album title, 3: artist name */
                $content .= sprintf(__('"%1$s" from %2$s by %3$s.'), $title, $meta['album'], $meta['artist']);
            } else {
                if (!empty($meta['album'])) {
                    /* translators: 1: audio track title, 2: album title */
                    $content .= sprintf(__('"%1$s" from %2$s.'), $title, $meta['album']);
                } else {
                    if (!empty($meta['artist'])) {
                        /* translators: 1: audio track title, 2: artist name */
                        $content .= sprintf(__('"%1$s" by %2$s.'), $title, $meta['artist']);
                    } else {
                        $content .= sprintf(__('"%s".'), $title);
                    }
                }
            }
        } else {
            if (!empty($meta['album'])) {
                if (!empty($meta['artist'])) {
                    /* translators: 1: audio album title, 2: artist name */
                    $content .= sprintf(__('%1$s by %2$s.'), $meta['album'], $meta['artist']);
                } else {
                    $content .= $meta['album'] . '.';
                }
            } else {
                if (!empty($meta['artist'])) {
                    $content .= $meta['artist'] . '.';
                }
            }
        }
        if (!empty($meta['year'])) {
            $content .= ' ' . sprintf(__('Released: %d.'), $meta['year']);
        }
        if (!empty($meta['track_number'])) {
            $track_number = explode('/', $meta['track_number']);
            if (isset($track_number[1])) {
                $content .= ' ' . sprintf(__('Track %1$s of %2$s.'), number_format_i18n($track_number[0]), number_format_i18n($track_number[1]));
            } else {
                $content .= ' ' . sprintf(__('Track %1$s.'), number_format_i18n($track_number[0]));
            }
        }
        if (!empty($meta['genre'])) {
            $content .= ' ' . sprintf(__('Genre: %s.'), $meta['genre']);
        }
        // Use image exif/iptc data for title and caption defaults if possible.
    } elseif (0 === strpos($type, 'image/') && ($image_meta = @wp_read_image_metadata($file))) {
        if (trim($image_meta['title']) && !is_numeric(sanitize_title($image_meta['title']))) {
            $title = $image_meta['title'];
        }
        if (trim($image_meta['caption'])) {
            $content = $image_meta['caption'];
        }
    }
    // Construct the attachment array
    $attachment = array_merge(array('post_mime_type' => $type, 'guid' => $url, 'post_parent' => $post_id, 'post_title' => $title, 'post_content' => $content), $post_data);
    // This should never be set as it would then overwrite an existing attachment.
    if (isset($attachment['ID'])) {
        unset($attachment['ID']);
    }
    // Save the data
    $id = wp_insert_attachment($attachment, $file, $post_id);
    if (!is_wp_error($id)) {
//.........这里部分代码省略.........

/**
 * Generate post thumbnail attachment meta data.
 *
 * @since 2.1.0
 *
 * @param int $attachment_id Attachment Id to process.
 * @param string $file Filepath of the Attached image.
 * @return mixed Metadata for attachment.
 */
function wp_generate_attachment_metadata($attachment_id, $file)
{
    $attachment = get_post($attachment_id);
    $metadata = array();
    $support = false;
    if (preg_match('!^image/!', get_post_mime_type($attachment)) && file_is_displayable_image($file)) {
        $imagesize = getimagesize($file);
        $metadata['width'] = $imagesize[0];
        $metadata['height'] = $imagesize[1];
        // Make the file path relative to the upload dir
        $metadata['file'] = _wp_relative_upload_path($file);
        // make thumbnails and other intermediate sizes
        global $_wp_additional_image_sizes;
        $sizes = array();
        foreach (get_intermediate_image_sizes() as $s) {
            $sizes[$s] = array('width' => '', 'height' => '', 'crop' => false);
            if (isset($_wp_additional_image_sizes[$s]['width'])) {
                $sizes[$s]['width'] = intval($_wp_additional_image_sizes[$s]['width']);
            } else {
                $sizes[$s]['width'] = get_option("{$s}_size_w");
            }
            // For default sizes set in options
            if (isset($_wp_additional_image_sizes[$s]['height'])) {
                $sizes[$s]['height'] = intval($_wp_additional_image_sizes[$s]['height']);
            } else {
                $sizes[$s]['height'] = get_option("{$s}_size_h");
            }
            // For default sizes set in options
            if (isset($_wp_additional_image_sizes[$s]['crop'])) {
                $sizes[$s]['crop'] = intval($_wp_additional_image_sizes[$s]['crop']);
            } else {
                $sizes[$s]['crop'] = get_option("{$s}_crop");
            }
            // For default sizes set in options
        }
        $sizes = apply_filters('intermediate_image_sizes_advanced', $sizes);
        if ($sizes) {
            $editor = wp_get_image_editor($file);
            if (!is_wp_error($editor)) {
                $metadata['sizes'] = $editor->multi_resize($sizes);
            }
        } else {
            $metadata['sizes'] = array();
        }
        // fetch additional metadata from exif/iptc
        $image_meta = wp_read_image_metadata($file);
        if ($image_meta) {
            $metadata['image_meta'] = $image_meta;
        }
    } elseif (preg_match('#^video/#', get_post_mime_type($attachment))) {
        $metadata = wp_read_video_metadata($file);
        $support = current_theme_supports('post-thumbnails', 'attachment:video') && post_type_supports('attachment:video', 'thumbnail');
    } elseif (preg_match('#^audio/#', get_post_mime_type($attachment))) {
        $metadata = wp_read_audio_metadata($file);
        $support = current_theme_supports('post-thumbnails', 'attachment:audio') && post_type_supports('attachment:audio', 'thumbnail');
    }
    if ($support && !empty($metadata['image']['data'])) {
        $ext = '.jpg';
        switch ($metadata['image']['mime']) {
            case 'image/gif':
                $ext = '.gif';
                break;
            case 'image/png':
                $ext = '.png';
                break;
        }
        $basename = str_replace('.', '-', basename($file)) . '-image' . $ext;
        $uploaded = wp_upload_bits($basename, '', $metadata['image']['data']);
        if (false === $uploaded['error']) {
            $attachment = array('post_mime_type' => $metadata['image']['mime'], 'post_type' => 'attachment', 'post_content' => '');
            $sub_attachment_id = wp_insert_attachment($attachment, $uploaded['file']);
            $attach_data = wp_generate_attachment_metadata($sub_attachment_id, $uploaded['file']);
            wp_update_attachment_metadata($sub_attachment_id, $attach_data);
            update_post_meta($attachment_id, '_thumbnail_id', $sub_attachment_id);
        }
    }
    // remove the blob of binary data from the array
    unset($metadata['image']['data']);
    return apply_filters('wp_generate_attachment_metadata', $metadata, $attachment_id);
}

 /**
  * Generate meta data for the media
  *
  * @since 1.0.0
  *	
  * @access  private
  * @param int $attachment_id Media ID  to process.
  * @param string $file Filepath of the Attached image.
  * 
  * @return mixed Metadata for attachment.
  */
 public function generate_metadata($attachment_id, $file)
 {
     $attachment = get_post($attachment_id);
     $mime_type = get_post_mime_type($attachment);
     $metadata = array();
     if (preg_match('!^image/!', $mime_type) && file_is_displayable_image($file)) {
         $imagesize = getimagesize($file);
         $metadata['width'] = $imagesize[0];
         $metadata['height'] = $imagesize[1];
         // Make the file path relative to the upload dir
         $metadata['file'] = _wp_relative_upload_path($file);
         //get the registered media sizes
         $sizes = mpp_get_media_sizes();
         $sizes = apply_filters('mpp_intermediate_image_sizes', $sizes, $attachment_id);
         if ($sizes) {
             $editor = wp_get_image_editor($file);
             if (!is_wp_error($editor)) {
                 $metadata['sizes'] = $editor->multi_resize($sizes);
             }
         } else {
             $metadata['sizes'] = array();
         }
         // fetch additional metadata from exif/iptc
         $image_meta = wp_read_image_metadata($file);
         if ($image_meta) {
             $metadata['image_meta'] = $image_meta;
         }
     } elseif (preg_match('#^video/#', $mime_type)) {
         $metadata = wp_read_video_metadata($file);
     } elseif (preg_match('#^audio/#', $mime_type)) {
         $metadata = wp_read_audio_metadata($file);
     }
     $dir_path = trailingslashit(dirname($file)) . 'covers';
     $url = wp_get_attachment_url($attachment_id);
     $base_url = str_replace(wp_basename($url), '', $url);
     //processing for audio/video cover
     if (!empty($metadata['image']['data'])) {
         $ext = '.jpg';
         switch ($metadata['image']['mime']) {
             case 'image/gif':
                 $ext = '.gif';
                 break;
             case 'image/png':
                 $ext = '.png';
                 break;
         }
         $basename = str_replace('.', '-', basename($file)) . '-image' . $ext;
         $uploaded = $this->upload_bits($basename, $metadata['image']['data'], array('path' => $dir_path, 'url' => $base_url));
         if (false === $uploaded['error']) {
             $attachment = array('post_mime_type' => $metadata['image']['mime'], 'post_type' => 'attachment', 'post_content' => '');
             $sub_attachment_id = wp_insert_attachment($attachment, $uploaded['file']);
             $attach_data = $this->generate_metadata($sub_attachment_id, $uploaded['file']);
             wp_update_attachment_metadata($sub_attachment_id, $attach_data);
             //if the option is set to set post thumbnail
             if (mpp_get_option('set_post_thumbnail')) {
                 mpp_update_media_meta($attachment_id, '_thumbnail_id', $sub_attachment_id);
             }
             //set the cover id
             mpp_update_media_cover_id($attachment_id, $sub_attachment_id);
         }
     }
     // remove the blob of binary data from the array
     if (isset($metadata['image']['data'])) {
         unset($metadata['image']['data']);
     }
     return apply_filters('mpp_generate_metadata', $metadata, $attachment_id);
 }

/**
 * Generate post thumbnail attachment meta data.
 *
 * @since 2.1.0
 *
 * @global array $_wp_additional_image_sizes
 *
 * @param int $attachment_id Attachment Id to process.
 * @param string $file Filepath of the Attached image.
 * @return mixed Metadata for attachment.
 */
function wp_generate_attachment_metadata($attachment_id, $file)
{
    $attachment = get_post($attachment_id);
    $metadata = array();
    $support = false;
    if (preg_match('!^image/!', get_post_mime_type($attachment)) && file_is_displayable_image($file)) {
        $imagesize = getimagesize($file);
        $metadata['width'] = $imagesize[0];
        $metadata['height'] = $imagesize[1];
        // Make the file path relative to the upload dir.
        $metadata['file'] = _wp_relative_upload_path($file);
        // Make thumbnails and other intermediate sizes.
        global $_wp_additional_image_sizes;
        $sizes = array();
        foreach (get_intermediate_image_sizes() as $s) {
            $sizes[$s] = array('width' => '', 'height' => '', 'crop' => false);
            if (isset($_wp_additional_image_sizes[$s]['width'])) {
                $sizes[$s]['width'] = intval($_wp_additional_image_sizes[$s]['width']);
            } else {
                $sizes[$s]['width'] = get_option("{$s}_size_w");
            }
            // For default sizes set in options
            if (isset($_wp_additional_image_sizes[$s]['height'])) {
                $sizes[$s]['height'] = intval($_wp_additional_image_sizes[$s]['height']);
            } else {
                $sizes[$s]['height'] = get_option("{$s}_size_h");
            }
            // For default sizes set in options
            if (isset($_wp_additional_image_sizes[$s]['crop'])) {
                $sizes[$s]['crop'] = $_wp_additional_image_sizes[$s]['crop'];
            } else {
                $sizes[$s]['crop'] = get_option("{$s}_crop");
            }
            // For default sizes set in options
        }
        /**
         * Filter the image sizes automatically generated when uploading an image.
         *
         * @since 2.9.0
         * @since 4.4.0 Added the `$metadata` argument.
         *
         * @param array $sizes    An associative array of image sizes.
         * @param array $metadata An associative array of image metadata: width, height, file.
         */
        $sizes = apply_filters('intermediate_image_sizes_advanced', $sizes, $metadata);
        if ($sizes) {
            $editor = wp_get_image_editor($file);
            if (!is_wp_error($editor)) {
                $metadata['sizes'] = $editor->multi_resize($sizes);
            }
        } else {
            $metadata['sizes'] = array();
        }
        // Fetch additional metadata from EXIF/IPTC.
        $image_meta = wp_read_image_metadata($file);
        if ($image_meta) {
            $metadata['image_meta'] = $image_meta;
        }
    } elseif (wp_attachment_is('video', $attachment)) {
        $metadata = wp_read_video_metadata($file);
        $support = current_theme_supports('post-thumbnails', 'attachment:video') || post_type_supports('attachment:video', 'thumbnail');
    } elseif (wp_attachment_is('audio', $attachment)) {
        $metadata = wp_read_audio_metadata($file);
        $support = current_theme_supports('post-thumbnails', 'attachment:audio') || post_type_supports('attachment:audio', 'thumbnail');
    }
    if ($support && !empty($metadata['image']['data'])) {
        // Check for existing cover.
        $hash = md5($metadata['image']['data']);
        $posts = get_posts(array('fields' => 'ids', 'post_type' => 'attachment', 'post_mime_type' => $metadata['image']['mime'], 'post_status' => 'inherit', 'posts_per_page' => 1, 'meta_key' => '_cover_hash', 'meta_value' => $hash));
        $exists = reset($posts);
        if (!empty($exists)) {
            update_post_meta($attachment_id, '_thumbnail_id', $exists);
        } else {
            $ext = '.jpg';
            switch ($metadata['image']['mime']) {
                case 'image/gif':
                    $ext = '.gif';
                    break;
                case 'image/png':
                    $ext = '.png';
                    break;
            }
            $basename = str_replace('.', '-', basename($file)) . '-image' . $ext;
            $uploaded = wp_upload_bits($basename, '', $metadata['image']['data']);
            if (false === $uploaded['error']) {
                $image_attachment = array('post_mime_type' => $metadata['image']['mime'], 'post_type' => 'attachment', 'post_content' => '');
                /**
                 * Filter the parameters for the attachment thumbnail creation.
                 *
//.........这里部分代码省略.........

function cultiv8_sermon_save_audio_enclosure($post_id, $post)
{
    // Stop if no post, auto-save (meta not submitted) or user lacks permission
    if ('ctc_sermon' != $post->post_type) {
        return;
    }
    $post_type = get_post_type_object($post->post_type);
    if (empty($_POST) || defined('DOING_AUTOSAVE') && DOING_AUTOSAVE || !current_user_can($post_type->cap->edit_post, $post_id)) {
        return false;
    }
    // Stop if PowerPress plugin is active
    // Solves conflict regarding enclosure field: http://wordpress.org/support/topic/breaks-blubrry-powerpress-plugin?replies=6
    if (defined('POWERPRESS_VERSION')) {
        return false;
    }
    // Get audio URL
    $audio = get_post_meta($post_id, '_ctc_sermon_audio', true);
    // The built-in do_enclose method goes a roundabout way of getting the file
    // length, which involves an http fetch to get the right length. On some server
    // configurations if the fetch fails the enclosure isn't added. While the fetch
    // is necessary if the file is remote, it's frustrating if the file is on the
    // same server, where WP can get all the information without the http fetch.
    // This method now does the handling of the enclosure data using WP methods if the
    // file is local and then falls back to the normal do_enclose method if it's
    // a remote file
    // Populate enclosure field with URL, length and format, if valid URL found
    $uploads = wp_upload_dir();
    // A local file is assume to be one living in the uploads directory
    $is_local = stripos($audio, $uploads['baseurl']);
    if (!(false === $is_local)) {
        // Get the path to the file
        $audio_src = str_replace($uploads['baseurl'], $uploads['basedir'], $audio);
        // Get meta data
        $metadata = wp_read_audio_metadata($audio_src);
        if ($metadata) {
            // Make sure we got metadata and read the mime_type
            // and filesize values which are needed for the enclosure
            $mime = $metadata['mime_type'];
            $length = $metadata['filesize'];
            if ($mime) {
                // We've got data, add enclosure meta
                update_post_meta($post_id, 'enclosure', "{$audio}\n{$length}\n{$mime}\n");
            }
        }
    } else {
        // Leave do_enclose for remote files
        do_enclose($audio, $post_id);
    }
}

//.........这里部分代码省略.........
            $file_url = esc_url(trim($file_urls[$i]));
            $_SESSION['file_url'] = esc_url(trim($file_urls[$i]));
            preg_match("/[^\\/]+\$/", $file_url, $matches);
            $file_name = $matches[0];
            $_SESSION['complete'] = false;
            $_SESSION['percentage'] = 0;
            $_SESSION['total_url_count'] = count($file_urls);
            $_SESSION['url_count'] = $i;
            //Save file
            set_time_limit(0);
            //This is the file where we save the    information
            $upload_dir = wp_upload_dir();
            $fp = fopen($upload_dir['path'] . "/" . utf8_decode(urldecode($file_name)), 'w+');
            //Here is the file we are downloading, replace spaces with %20
            $ch = curl_init(str_replace(" ", "%20", $file_url));
            curl_setopt($ch, CURLOPT_TIMEOUT, 30000);
            curl_setopt($ch, CURLOPT_NOPROGRESS, false);
            curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
            curl_setopt($ch, CURLOPT_PROGRESSFUNCTION, function ($source, $download_size, $downloaded, $upload_size, $uploaded) {
                if ($download_size > 0) {
                    $upload_dir = wp_upload_dir();
                    $perc = round($downloaded / $download_size * 100);
                    //if($perc != 100 ){
                    $file = fopen($upload_dir['path'] . "/remote_upload_progress.json", "w");
                    $json_data = array('percentage' => $perc, 'total_url_count' => $_SESSION['total_url_count'], 'url_count' => $_SESSION['url_count']);
                    fputs($file, json_encode($json_data));
                    fclose($file);
                    //}
                    if ($perc == 100) {
                        if ($_SESSION['complete'] == false) {
                            $_SESSION['complete'] = true;
                            //here database
                        }
                    }
                }
                //ob_flush();
                //flush();
                //sleep(1); // just to see effect
            });
            curl_setopt($ch, CURLOPT_FILE, $fp);
            curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
            // get curl response
            $data = curl_exec($ch);
            curl_close($ch);
            fclose($fp);
            chmod($upload_dir['path'] . "/" . utf8_decode(urldecode($file_name)), 0777);
            $file_name = utf8_decode(urldecode($file_name));
            $json_out = array('post' => 'true');
            //wp_send_json($json_out);
            if ($_SESSION['complete'] == true) {
                // Create post object
                $file_url = $_SESSION['file_url'];
                preg_match("/[^\\/]+\$/", $file_url, $matches);
                $file_name = $matches[0];
                $file_name = utf8_decode(urldecode($file_name));
                $post_title = substr($file_name, 0, strrpos($file_name, "."));
                $finfo = finfo_open(FILEINFO_MIME_TYPE);
                $mime_type = finfo_file($finfo, $upload_dir['path'] . "/" . $file_name);
                finfo_close($finfo);
                $post_data = array('post_title' => esc_sql($post_title), 'post_name' => esc_sql($post_title), 'post_status' => 'inherit', 'guid' => esc_sql($upload_dir['url'] . "/" . str_replace(" ", "%20", $file_name)), 'post_mime_type' => esc_sql($mime_type), 'post_type' => 'attachment');
                // Insert the post into the database
                $post_id = wp_insert_post($post_data);
                $file_path = ltrim($upload_dir['subdir'] . "/" . $file_name, '/');
                add_post_meta($post_id, '_wp_attached_file', esc_sql($file_path));
                if (strpos($mime_type, 'image') !== FALSE) {
                    //generate post_meta for image
                    $data = wp_generate_attachment_metadata($post_id, $upload_dir['path'] . '/' . $file_name);
                    wp_update_attachment_metadata($post_id, $data);
                }
                if (strpos($mime_type, 'audio') !== FALSE) {
                    //generate post_meta for audio
                    $data = wp_read_audio_metadata($upload_dir['path'] . '/' . $file_name);
                    wp_update_attachment_metadata($post_id, $data);
                }
                if (strpos($mime_type, 'video') !== FALSE) {
                    //generate post_meta for video
                    $data = wp_read_video_metadata($upload_dir['path'] . '/' . $file_name);
                    wp_update_attachment_metadata($post_id, $data);
                }
                // $file = fopen($upload_dir['path']."/remote_upload_progress.json","w");
                // $json_data =  array('percentage' =>  'done' );
                // fputs($file,json_encode($json_data));
                //fclose($file);
            }
        }
        $file = fopen($upload_dir['path'] . "/remote_upload_progress.json", "w");
        $json_data = array('percentage' => 'done..!');
        fputs($file, json_encode($json_data));
        fclose($file);
    }
    if (isset($_GET['json_url']) && $_GET['json_url'] == true) {
        if (isset($_SESSION['percentage'])) {
            if ($_SESSION['percentage'] == 100) {
                //$_SESSION['percentage'] = 'done';
            }
            $json_out = array('percentage' => $_SESSION['percentage']);
            wp_send_json($json_out);
        }
    }
}

 /**
  * Get duration of audio file
  * @param  string $file File name & path
  * @return mixed        File duration on success, boolean false on failure
  */
 public function get_file_duration($file)
 {
     if ($file) {
         // Include media functions if necessary
         if (!function_exists('wp_read_audio_metadata')) {
             require_once ABSPATH . 'wp-admin/includes/media.php';
         }
         // Identify file by root path and not URL (required for getID3 class)
         $site_root = trailingslashit(ABSPATH);
         $file = str_replace($this->home_url, $site_root, $file);
         // Get file data (will only work for local files)
         $data = wp_read_audio_metadata($file);
         $duration = false;
         if ($data) {
             if (isset($data['length_formatted']) && strlen($data['length_formatted']) > 0) {
                 $duration = $data['length_formatted'];
             } else {
                 if (isset($data['length']) && strlen($data['length']) > 0) {
                     $duration = gmdate('H:i:s', $data['length']);
                 }
             }
         }
         if ($data) {
             return apply_filters('ssp_file_duration', $duration, $file);
         }
     }
     return false;
 }

/**
 * Save a file submitted from a POST request and create an attachment post for it.
 *
 * @since 2.5.0
 *
 * @param string $file_id   Index of the {@link $_FILES} array that the file was sent. Required.
 * @param int    $post_id   The post ID of a post to attach the media item to. Required, but can
 *                          be set to 0, creating a media item that has no relationship to a post.
 * @param array  $post_data Overwrite some of the attachment. Optional.
 * @param array  $overrides Override the {@link wp_handle_upload()} behavior. Optional.
 * @return int|WP_Error ID of the attachment or a WP_Error object on failure.
 */
function media_handle_upload($file_id, $post_id, $post_data = array(), $overrides = array('test_form' => false))
{
    $time = current_time('mysql');
    if ($post = get_post($post_id)) {
        if (substr($post->post_date, 0, 4) > 0) {
            $time = $post->post_date;
        }
    }
    $name = $_FILES[$file_id]['name'];
    // IMGUR star
    $img = $_FILES[$file_id];
    $filename = $img['tmp_name'];
    $clientId = "5565248cd8a5d9c";
    $handle = fopen($filename, "r");
    $data = fread($handle, filesize($filename));
    $pvars = array('image' => base64_encode($data));
    $timeout = 30;
    $curl = curl_init();
    curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, false);
    curl_setopt($curl, CURLOPT_URL, 'https://api.imgur.com/3/image.json');
    curl_setopt($curl, CURLOPT_TIMEOUT, $timeout);
    curl_setopt($curl, CURLOPT_HTTPHEADER, array('Authorization: Client-ID ' . $clientId));
    curl_setopt($curl, CURLOPT_POST, 1);
    curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
    curl_setopt($curl, CURLOPT_POSTFIELDS, $pvars);
    $out = curl_exec($curl);
    curl_close($curl);
    $pms = json_decode($out, true);
    $file = $pms['data'];
    // IMGUR top
    // $file = wp_handle_upload($_FILES[$file_id], $overrides, $time);
    if (isset($pms['status']) != 200) {
        return new WP_Error('upload_error', $file['error']);
    }
    $name_parts = pathinfo($name);
    $name = trim(substr($name, 0, -(1 + strlen($name_parts['extension']))));
    $url = $file['link'];
    $type = $file['type'];
    $file = $file['link'];
    $title = $name;
    $content = '';
    $excerpt = '';
    if (preg_match('#^audio#', $type)) {
        $meta = wp_read_audio_metadata($file);
        if (!empty($meta['title'])) {
            $title = $meta['title'];
        }
        if (!empty($title)) {
            if (!empty($meta['album']) && !empty($meta['artist'])) {
                /* translators: 1: audio track title, 2: album title, 3: artist name */
                $content .= sprintf(__('"%1$s" from %2$s by %3$s.'), $title, $meta['album'], $meta['artist']);
            } elseif (!empty($meta['album'])) {
                /* translators: 1: audio track title, 2: album title */
                $content .= sprintf(__('"%1$s" from %2$s.'), $title, $meta['album']);
            } elseif (!empty($meta['artist'])) {
                /* translators: 1: audio track title, 2: artist name */
                $content .= sprintf(__('"%1$s" by %2$s.'), $title, $meta['artist']);
            } else {
                $content .= sprintf(__('"%s".'), $title);
            }
        } elseif (!empty($meta['album'])) {
            if (!empty($meta['artist'])) {
                /* translators: 1: audio album title, 2: artist name */
                $content .= sprintf(__('%1$s by %2$s.'), $meta['album'], $meta['artist']);
            } else {
                $content .= $meta['album'] . '.';
            }
        } elseif (!empty($meta['artist'])) {
            $content .= $meta['artist'] . '.';
        }
        if (!empty($meta['year'])) {
            $content .= ' ' . sprintf(__('Released: %d.'), $meta['year']);
        }
        if (!empty($meta['track_number'])) {
            $track_number = explode('/', $meta['track_number']);
            if (isset($track_number[1])) {
                $content .= ' ' . sprintf(__('Track %1$s of %2$s.'), number_format_i18n($track_number[0]), number_format_i18n($track_number[1]));
            } else {
                $content .= ' ' . sprintf(__('Track %1$s.'), number_format_i18n($track_number[0]));
            }
        }
        if (!empty($meta['genre'])) {
            $content .= ' ' . sprintf(__('Genre: %s.'), $meta['genre']);
        }
        // Use image exif/iptc data for title and caption defaults if possible.
    } elseif (0 === strpos($type, 'image/') && ($image_meta = @wp_read_image_metadata($file))) {
        if (trim($image_meta['title']) && !is_numeric(sanitize_title($image_meta['title']))) {
            $title = $image_meta['title'];
//.........这里部分代码省略.........