Python DrupyPHP.is_uploaded_file方法代码示例

# 需要导入模块: from lib.drupy import DrupyPHP [as 别名]
# 或者: from lib.drupy.DrupyPHP import is_uploaded_file [as 别名]
def save_upload(source, validators = {}, dest = False, \
    replace = FILE_EXISTS_RENAME):
  """
   Saves a file upload to a new location + The source file is validated as a
   proper upload and handled as such.
  
   The file will be added to the files table as a temporary file.
   Temporary files
   are periodically cleaned + To make the file permanent file call
   file_set_status() to change its status.
  
   @param source
     A string specifying the name of the upload field to save.
   @param validators
     An optional, associative array of callback functions used to validate the
     file + The keys are function names and the values arrays of callback
     parameters which will be passed in after the user and file objects + The
     functions should return an array of error messages, an empty array
     indicates that the file passed validation.
     The functions will be called in
     the order specified.
   @param dest
     A string containing the directory source should be copied to + If this is
     not provided or is not writable, the temporary directory will be used.
   @param replace
     A boolean indicating whether an existing file of the same name in the
     destination directory should overwritten + A False value will generate a
     new, unique filename in the destination directory.
   @return
     An object containing the file information, or False
     in the event of an error.
  """
  php.static(file_save_upload, 'upload_cache', {})
  # Add in our check of the the file name length.
  validators['file_validate_name_length'] = {}
  # Return cached objects without processing since the file will have
  # already been processed and the paths in FILES will be invalid.
  if (php.isset(file_save_upload.uploadcache, source)):
    return file_save_upload.uploadcache[source]
  # If a file was uploaded, process it.
  if (php.isset(p.FILES, 'files') and p.FILES['files']['name'][source] and \
      php.is_uploaded_file(p.FILES['files']['tmp_name'][source])):
    # Check for file upload errors and return False if a
    # lower level system error occurred.
    # @see http://php.net/manual/en/features.file-upload.errors.php
    if p.FILES['files']['error'][source] == UPLOAD_ERR_OK:
      pass
    elif p.FILES['files']['error'][source] == UPLOAD_ERR_INI_SIZE or \
        p.FILES['files']['error'][source] == UPLOAD_ERR_FORM_SIZE:
      drupal_set_message(t(\
        'The file %file could not be saved, because it exceeds %maxsize, ' + \
        'the maximum allowed size for uploads.', \
        {'%file' : source, '%maxsize' : \
        format_size(file_upload_max_size())}), 'error')
      return False
    elif p.FILES['files']['error'][source] == UPLOAD_ERR_PARTIAL or \
        p.FILES['files']['error'][source] == UPLOAD_ERR_NO_FILE:
      drupal_set_message(t('The file %file could not be saved, ' + \
        'because the upload did not complete.', {'%file' : source}), 'error')
      return False
    # Unknown error
    else:
      drupal_set_message(t('The file %file could not be saved. ' + \
        'An unknown error has occurred.', {'%file' : source}), 'error')
      return False
    # Build the list of non-munged extensions.
    # @todo: this should not be here + we need to figure out the right place.
    extensions = ''
    for rid,name in lib_appglobals.user.roles.items():
      extensions += ' ' + variable_get("upload_extensions_rid",
      variable_get('upload_extensions_default', \
        'jpg jpeg gif png txt html doc xls pdf ppt pps odt ods odp'))
    # Begin building file object.
    file = php.stdClass()
    file.filename = file_munge_filename(php.trim(\
      basename(p.FILES['files']['name'][source]), '.'), extensions)
    file.filepath = p.FILES['files']['tmp_name'][source]
    file.filemime = p.FILES['files']['type'][source]
    # Rename potentially executable files, to help prevent exploits.
    if (php.preg_match('/\.(php|pl|py|cgi|asp|js)$/i', file.filename) and \
        (php.substr(file.filename, -4) != '.txt')):
      file.filemime = 'text/plain'
      file.filepath += '.txt'
      file.filename += '.txt'
    # If the destination is not provided, or is not writable, then use the
    # temporary directory.
    if (php.empty(dest) or file_check_path(dest) == False):
      dest = file_directory_temp()
    file.source = source
    file.destination = file_destination(file_create_path(dest + '/' + \
      file.filename), replace)
    file.filesize = FILES['files']['size'][source]
    # Call the validation functions.
    errors = {}
    for function,args in validators.items():
      array_unshift(args, file)
      errors = php.array_merge(errors, function(*args))
    # Check for validation errors.
    if (not php.empty(errors)):
      message = t('The selected file %name could not be uploaded.', \
#.........这里部分代码省略.........