class ActiveStorageDownloader

Imported from the future github.com/rails/rails/commit/ee21b7c2eb64def8f00887a9fafbd77b85f464f1#diff-c76fb6202b7f95a08fe12f40c4999ac9

Attributes

blob[R]

tempdir[R]

Public Class Methods

new(blob, tempdir: nil) click to toggle source

# File lib/clowne_active_storage/helpers/active_storage_downloader.rb, line 7
def initialize(blob, tempdir: nil)
  @blob    = blob
  @tempdir = tempdir
end

Public Instance Methods

download_blob_to_tempfile() { |file| ... } click to toggle source

# File lib/clowne_active_storage/helpers/active_storage_downloader.rb, line 12
def download_blob_to_tempfile
  open_tempfile do |file|
    download_blob_to file
    verify_integrity_of file
    yield file
  end
end

Private Instance Methods

download_blob_to(file) click to toggle source

# File lib/clowne_active_storage/helpers/active_storage_downloader.rb, line 35
def download_blob_to(file)
  file.binmode
  blob.download { |chunk| file.write(chunk) }
  file.flush
  file.rewind
end

open_tempfile() { |file| ... } click to toggle source

# File lib/clowne_active_storage/helpers/active_storage_downloader.rb, line 22
def open_tempfile
  file = Tempfile.open(
    ["ActiveStorage-#{blob.id}-", blob.filename.extension_with_delimiter],
    tempdir
  )

  begin
    yield file
  ensure
    file.close!
  end
end

verify_integrity_of(file) click to toggle source

# File lib/clowne_active_storage/helpers/active_storage_downloader.rb, line 42
def verify_integrity_of(file)
  return if Digest::MD5.file(file).base64digest == blob.checksum
  raise ActiveStorage::IntegrityError
end