联系表 7 - 文件类型 [Wordpress]

Question

我想让网站访问者能够向我发送不同的、非常规的文件类型。就像 PCB 文档或 .psd 文件一样。 我查看了所有代码，没有找到任何提示。 我想要的只是禁用文件类型检查。 另外，我在某处读到它与 Wordpress 配置文件有关，没关系，我会更改它们。 提前谢谢你。

Answer 1

它在the contact form 7 website上列出。

可以上传的文件类型有：

当您未明确设置 filetypes: 和 limit:（文件大小）选项时，Contact Form 7 对文件类型和文件大小应用默认限制。默认可接受的文件类型（扩展名）为：jpg、jpeg、png、gif、pdf、doc、docx、ppt、pptx、odt、avi、ogg、m4a、mov、mp3、mp4、mpg、wav 和 wmv。默认可接受的文件大小为 1 MB（1048576 字节）。

Answer 2

include_once( ABSPATH . 'wp-admin/includes/plugin.php' );
if (!is_plugin_active('contact-form-7/wp-contact-form-7.php')) {
  return;
}

require_once ABSPATH.'wp-content/plugins/contact-form-7/wp-contact-form-7.php';

remove_filter( 'wpcf7_validate_file', 'wpcf7_file_validation_filter', 10, 2 );
remove_filter( 'wpcf7_validate_file*', 'wpcf7_file_validation_filter', 10, 2 );

add_filter( 'wpcf7_validate_file', 'wpcf7_custom_file_validation_filter', 10, 2 );
add_filter( 'wpcf7_validate_file*', 'wpcf7_custom_file_validation_filter', 10, 2 );

function wpcf7_custom_file_validation_filter($result, $tag){
  $tag = new WPCF7_Shortcode( $tag );

  $name = $tag->name;
  $id = $tag->get_id_option();

  $file = isset( $_FILES[$name] ) ? $_FILES[$name] : null;

  if ( $file['error'] && UPLOAD_ERR_NO_FILE != $file['error'] ) {
    $result->invalidate( $tag, wpcf7_get_message( 'upload_failed_php_error' ) );
    return $result;
  }

  if ( empty( $file['tmp_name'] ) && $tag->is_required() ) {
    $result->invalidate( $tag, wpcf7_get_message( 'invalid_required' ) );
    return $result;
  }

  if ( ! is_uploaded_file( $file['tmp_name'] ) )
    return $result;

  $allowed_file_types = array();

  if ( $file_types_a = $tag->get_option( 'filetypes' ) ) {
    foreach ( $file_types_a as $file_types ) {
      $file_types = explode( '|', $file_types );

      foreach ( $file_types as $file_type ) {
        $file_type = trim( $file_type, '.' );
        $file_type = str_replace( array( '.', '+', '*', '?' ),
          array( '\.', '\+', '\*', '\?' ), $file_type );
        $allowed_file_types[] = $file_type;
      }
    }
  }

  $allowed_file_types = array_unique( $allowed_file_types );
  $file_type_pattern = implode( '|', $allowed_file_types );

  $allowed_size = 1048576; // default size 1 MB

  if ( $file_size_a = $tag->get_option( 'limit' ) ) {
    $limit_pattern = '/^([1-9][0-9]*)([kKmM]?[bB])?$/';

    foreach ( $file_size_a as $file_size ) {
      if ( preg_match( $limit_pattern, $file_size, $matches ) ) {
        $allowed_size = (int) $matches[1];

        if ( ! empty( $matches[2] ) ) {
          $kbmb = strtolower( $matches[2] );

          if ( 'kb' == $kbmb )
            $allowed_size *= 1024;
          elseif ( 'mb' == $kbmb )
            $allowed_size *= 1024 * 1024;
        }

        break;
      }
    }
  }

  /* File type validation */

  // Default file-type restriction
  if ( '' == $file_type_pattern )
    $file_type_pattern = 'jpg|jpeg|png|gif|pdf|doc|docx|ppt|pptx|odt|avi|ogg|m4a|mov|mp3|mp4|mpg|wav|wmv|ai|eps|tif';

  $file_type_pattern = trim( $file_type_pattern, '|' );
  $file_type_pattern = '(' . $file_type_pattern . ')';
  $file_type_pattern = '/\.' . $file_type_pattern . '$/i';

  if ( ! preg_match( $file_type_pattern, $file['name'] ) ) {
    $result->invalidate( $tag, wpcf7_get_message( 'upload_file_type_invalid' ) );
    return $result;
  }

  /* File size validation */

  if ( $file['size'] > $allowed_size ) {
    $result->invalidate( $tag, wpcf7_get_message( 'upload_file_too_large' ) );
    return $result;
  }

  wpcf7_init_uploads(); // Confirm upload dir
  $uploads_dir = wpcf7_upload_tmp_dir();
  $uploads_dir = wpcf7_maybe_add_random_dir( $uploads_dir );

  $filename = $file['name'];
  $filename = wpcf7_canonicalize( $filename );
  $filename = sanitize_file_name( $filename );
  $filename = wpcf7_antiscript_file_name( $filename );
  $filename = wp_unique_filename( $uploads_dir, $filename );

  $new_file = trailingslashit( $uploads_dir ) . $filename;

  if ( false === @move_uploaded_file( $file['tmp_name'], $new_file ) ) {
    $result->invalidate( $tag, wpcf7_get_message( 'upload_failed' ) );
    return $result;
  }

  // Make sure the uploaded file is only readable for the owner process
  @chmod( $new_file, 0400 );

  if ( $submission = WPCF7_Submission::get_instance() ) {
    $submission->add_uploaded_file( $name, $new_file );
  }

  return $result;
}

将此 sn-p 粘贴到您的 functions.php 文件中 在末尾附加您所需的文件类型 排队

$file_type_pattern = 'jpg|jpeg|png|gif|pdf|doc|docx|ppt|pptx|odt|avi|ogg|m4a|mov|mp3|mp4|mpg|wav|wmv|ai|eps|tif';

你很高兴……