mirror of
https://github.com/livebook-dev/livebook.git
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Implement streaming for downloads and file systems (#2072)
Co-authored-by: José Valim <jose.valim@dashbit.co>
This commit is contained in:
Jonatan Kłosko
GitHub
parent
9e7e2f1707
commit
19a5124d1a
11 changed files with 917 additions and 52 deletions
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@ -98,6 +98,15 @@ defmodule Livebook.Config do
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Application.get_env(:livebook, :data_path) || :filename.basedir(:user_data, "livebook")
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end
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@doc """
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Returns path to Livebook temporary dir.
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"""
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@spec tmp_path() :: String.t()
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def tmp_path() do
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tmp_dir = System.tmp_dir!() |> Path.expand()
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Path.join(tmp_dir, "livebook")
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end
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@doc """
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Returns the apps path.
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"""
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@ -174,4 +174,60 @@ defprotocol Livebook.FileSystem do
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"""
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@spec resolve_path(t(), path(), String.t()) :: path()
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def resolve_path(file_system, dir_path, subject)
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@doc """
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Initializes chunked write to the given file.
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Should return the initial state, which is then reduced over in
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`write_stream_chunk/3`
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"""
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@spec write_stream_init(t(), path(), keyword()) :: {:ok, state} | {:error, error()}
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when state: term()
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def write_stream_init(file_system, path, opts)
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@doc """
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Writes a file chunk.
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There is no assumption on the chunk size, you can accumulate chunks
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in `state` and perform the write operation once the desired chunk
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size is achieved.
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"""
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@spec write_stream_chunk(t(), state, binary()) :: {:ok, state} | {:error, error()}
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when state: term()
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def write_stream_chunk(file_system, state, chunk)
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@doc """
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Finalizes chunked write operation.
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This function is called when all chunks have been successfully
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written.
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Note that if the finish operation fails, `write_stream_halt/2`
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is **not** expected to be called, so you should do the necessary
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cleanup here in case of failure as well.
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"""
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@spec write_stream_finish(t(), state) :: :ok | {:error, error()} when state: term()
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def write_stream_finish(file_system, state)
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@doc """
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Halts chunked write operation.
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This function is called when writing any of the chunks fails or the
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writing is aborted by the caller.
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"""
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@spec write_stream_halt(t(), state) :: :ok | {:error, error()} when state: term()
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def write_stream_halt(file_system, state)
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@doc """
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Similar to `read/2`, but streams file contents into `collectable`
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chunk by chunk.
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The `Collectable` protocol does not make room for gracefully
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signalling an error, so implementations generally raise an
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exception. `read_stream_into/3` is not expected to raise, so make
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sure to convert collectable exceptions into an error tuple.
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"""
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@spec read_stream_into(t(), path(), Collectable.t()) ::
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{:ok, Collectable.t()} | {:error, error()}
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def read_stream_into(file_system, path, collectable)
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end
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@ -227,8 +227,8 @@ defmodule Livebook.FileSystem.File do
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end
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defp copy_regular_file(source, destination) do
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with {:ok, content} <- read(source) do
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write(destination, content)
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with {:ok, _} <- read_stream_into(source, destination) do
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:ok
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end
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end
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@ -290,4 +290,45 @@ defmodule Livebook.FileSystem.File do
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end
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end)
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end
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@doc """
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Similar to `read/2`, but streams file contents into `collectable`
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chunk by chunk.
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"""
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@spec read_stream_into(t(), Collectable.t()) ::
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{:ok, Collectable.t()} | {:error, FileSystem.error()}
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def read_stream_into(file, collectable) do
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FileSystem.read_stream_into(file.file_system, file.path, collectable)
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end
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end
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defimpl Collectable, for: Livebook.FileSystem.File do
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def into(%Livebook.FileSystem.File{file_system: file_system, path: path} = file) do
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state = file_system |> Livebook.FileSystem.write_stream_init(path, []) |> unwrap!()
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collector = fn
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state, {:cont, chunk} when is_binary(chunk) ->
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file_system
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|> Livebook.FileSystem.write_stream_chunk(state, chunk)
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|> unwrap!()
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state, :done ->
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file_system
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|> Livebook.FileSystem.write_stream_finish(state)
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|> unwrap!()
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file
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state, :halt ->
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file_system
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|> Livebook.FileSystem.write_stream_halt(state)
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|> unwrap!()
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end
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{state, collector}
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end
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defp unwrap!(:ok), do: :ok
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defp unwrap!({:ok, result}), do: result
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defp unwrap!({:error, error}), do: raise(error)
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end
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@ -40,6 +40,8 @@ end
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defimpl Livebook.FileSystem, for: Livebook.FileSystem.Local do
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alias Livebook.FileSystem
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@stream_chunk_size_in_bytes 16384
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def resource_identifier(file_system) do
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{:local_file_system, node(file_system.origin_pid)}
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end
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@ -241,4 +243,59 @@ defimpl Livebook.FileSystem, for: Livebook.FileSystem.Local do
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{:error, "this local file system belongs to a different host"}
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end
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end
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def write_stream_init(_file_system, path, _opts) do
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FileSystem.Utils.assert_regular_path!(path)
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downloads_dir = Path.join(Livebook.Config.tmp_path(), "downloads")
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download_path = Path.join(downloads_dir, Livebook.Utils.random_id())
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with :ok <- File.mkdir_p(downloads_dir),
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{:ok, device} <- File.open(download_path, [:write]) do
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{:ok, %{path: path, download_path: download_path, device: device}}
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else
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{:error, error} -> FileSystem.Utils.posix_error(error)
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end
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end
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def write_stream_chunk(_file_system, state, chunk) when is_binary(chunk) do
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case IO.binwrite(state.device, chunk) do
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:ok -> {:ok, state}
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{:error, error} -> FileSystem.Utils.posix_error(error)
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end
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end
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def write_stream_finish(_file_system, state) do
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File.close(state.device)
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with :ok <- File.mkdir_p(Path.dirname(state.path)),
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:ok <- File.rename(state.download_path, state.path) do
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:ok
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else
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{:error, error} ->
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File.rm(state.download_path)
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FileSystem.Utils.posix_error(error)
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end
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end
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def write_stream_halt(_file_system, state) do
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File.close(state.device)
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File.rm(state.download_path)
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:ok
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end
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def read_stream_into(_file_system, path, collectable) do
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FileSystem.Utils.assert_regular_path!(path)
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try do
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result =
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path
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|> File.stream!([], @stream_chunk_size_in_bytes)
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|> Enum.into(collectable)
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{:ok, result}
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rescue
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error in File.Error -> FileSystem.Utils.posix_error(error.reason)
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end
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end
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end
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@ -216,6 +216,111 @@ defimpl Livebook.FileSystem, for: Livebook.FileSystem.S3 do
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FileSystem.Utils.resolve_unix_like_path(dir_path, subject)
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end
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def write_stream_init(_file_system, path, opts) do
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opts = Keyword.validate!(opts, part_size: 50_000_000)
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FileSystem.Utils.assert_regular_path!(path)
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"/" <> key = path
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{:ok,
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%{
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key: key,
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parts: 0,
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etags: [],
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current_chunks: [],
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current_size: 0,
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part_size: opts[:part_size],
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upload_id: nil
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}}
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end
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def write_stream_chunk(file_system, state, chunk) when is_binary(chunk) do
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chunk_size = byte_size(chunk)
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state = update_in(state.current_size, &(&1 + chunk_size))
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state = update_in(state.current_chunks, &[chunk | &1])
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if state.current_size >= state.part_size do
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maybe_state =
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if state.upload_id do
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{:ok, state}
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else
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with {:ok, upload_id} <- create_multipart_upload(file_system, state.key) do
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{:ok, %{state | upload_id: upload_id}}
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end
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end
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with {:ok, state} <- maybe_state do
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upload_part_from_state(file_system, state, state.part_size)
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end
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else
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{:ok, state}
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end
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end
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defp upload_part_from_state(file_system, state, part_size) do
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<<part::binary-size(part_size), rest::binary>> =
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state.current_chunks
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|> Enum.reverse()
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|> IO.iodata_to_binary()
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parts = state.parts + 1
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with {:ok, %{etag: etag}} <- upload_part(file_system, state.key, state.upload_id, parts, part) do
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{:ok,
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%{
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state
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| current_chunks: [rest],
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current_size: byte_size(rest),
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etags: [etag | state.etags],
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parts: parts
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}}
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end
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end
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def write_stream_finish(file_system, state) do
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if state.upload_id do
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maybe_state =
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if state.current_size > 0 do
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upload_part_from_state(file_system, state, state.current_size)
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else
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{:ok, state}
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end
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with {:ok, state} <- maybe_state,
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:ok <-
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complete_multipart_upload(
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file_system,
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state.key,
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state.upload_id,
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Enum.reverse(state.etags)
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) do
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:ok
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else
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{:error, error} ->
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abort_multipart_upload(file_system, state.key, state.upload_id)
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{:error, error}
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end
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else
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content = state.current_chunks |> Enum.reverse() |> IO.iodata_to_binary()
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put_object(file_system, state.key, content)
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end
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end
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def write_stream_halt(file_system, state) do
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if state.upload_id do
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abort_multipart_upload(file_system, state.key, state.upload_id)
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else
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:ok
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end
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end
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def read_stream_into(file_system, path, collectable) do
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FileSystem.Utils.assert_regular_path!(path)
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"/" <> key = path
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multipart_get_object(file_system, key, collectable)
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end
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# Requests
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defp list_objects(file_system, opts) do
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@ -258,15 +363,24 @@ defimpl Livebook.FileSystem, for: Livebook.FileSystem.S3 do
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end
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defp get_object(file_system, key) do
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case request(file_system, :get, "/" <> encode_key(key)) do
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case request(file_system, :get, "/" <> encode_key(key), long: true) do
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{:ok, 200, _headers, body} -> {:ok, body}
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{:ok, 404, _headers, _body} -> FileSystem.Utils.posix_error(:enoent)
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other -> request_response_to_error(other)
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end
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end
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defp multipart_get_object(file_system, key, collectable) do
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case download(file_system, "/" <> encode_key(key), collectable) do
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{:ok, collectable} -> {:ok, collectable}
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{:error, _message, 404} -> FileSystem.Utils.posix_error(:enoent)
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{:error, message, _status} -> {:error, message}
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end
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end
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defp put_object(file_system, key, content) do
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case request(file_system, :put, "/" <> encode_key(key), body: content) |> decode() do
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case request(file_system, :put, "/" <> encode_key(key), body: content, long: true)
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|> decode() do
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{:ok, 200, _headers, _body} -> :ok
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other -> request_response_to_error(other)
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end
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@ -344,6 +458,66 @@ defimpl Livebook.FileSystem, for: Livebook.FileSystem.S3 do
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end
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end
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defp create_multipart_upload(file_system, key) do
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query = %{"uploads" => ""}
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case request(file_system, :post, "/" <> encode_key(key), query: query, body: "")
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|> decode() do
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{:ok, 200, _headers, %{"InitiateMultipartUploadResult" => %{"UploadId" => upload_id}}} ->
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{:ok, upload_id}
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other ->
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request_response_to_error(other)
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end
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end
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defp upload_part(file_system, key, upload_id, part_number, content) do
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query = %{"uploadId" => upload_id, "partNumber" => part_number}
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case request(file_system, :put, "/" <> encode_key(key),
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query: query,
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body: content,
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long: true
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)
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|> decode() do
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{:ok, 200, headers, _body} ->
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{:ok, etag} = HTTP.fetch_header(headers, "etag")
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{:ok, %{etag: etag}}
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other ->
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request_response_to_error(other)
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end
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end
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defp complete_multipart_upload(file_system, key, upload_id, etags) do
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query = %{"uploadId" => upload_id}
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parts =
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for {etag, n} <- Enum.with_index(etags, 1) do
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%{"PartNumber" => n, "ETag" => etag}
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end
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body =
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%{"CompleteMultipartUpload" => %{"Part" => parts}}
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|> XML.encode_to_iodata!()
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|> IO.iodata_to_binary()
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case request(file_system, :post, "/" <> encode_key(key), query: query, body: body)
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|> decode() do
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{:ok, 200, _headers, _body} -> :ok
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other -> request_response_to_error(other)
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end
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end
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defp abort_multipart_upload(file_system, key, upload_id) do
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query = %{"uploadId" => upload_id}
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case request(file_system, :delete, "/" <> encode_key(key), query: query) |> decode() do
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{:ok, 204, _headers, _body} -> :ok
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other -> request_response_to_error(other)
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end
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end
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defp encode_key(key) do
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key
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|> String.split("/")
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@ -384,16 +558,36 @@ defimpl Livebook.FileSystem, for: Livebook.FileSystem.S3 do
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query = opts[:query] || %{}
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headers = opts[:headers] || []
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body = opts[:body]
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long = Keyword.get(opts, :long, false)
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%{host: host} = URI.parse(file_system.bucket_url)
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timeout_opts = if(long, do: [timeout: 60_000], else: [])
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url = file_system.bucket_url <> path <> "?" <> URI.encode_query(query)
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url = url(file_system, path, query)
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headers = headers(file_system, method, url, headers, body)
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body = body && {"application/octet-stream", body}
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HTTP.request(method, url, [headers: headers, body: body] ++ timeout_opts)
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end
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defp download(file_system, path, collectable, opts \\ []) do
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query = opts[:query] || %{}
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headers = opts[:headers] || []
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url = url(file_system, path, query)
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headers = headers(file_system, :get, url, headers)
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HTTP.download(url, collectable, headers: headers)
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end
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defp url(file_system, path, query) do
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file_system.bucket_url <> path <> "?" <> URI.encode_query(query)
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end
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defp headers(file_system, method, url, headers, body \\ nil) do
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now = NaiveDateTime.utc_now() |> NaiveDateTime.to_erl()
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%{host: host} = URI.parse(file_system.bucket_url)
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headers = [{"Host", host} | headers]
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headers =
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:aws_signature.sign_v4(
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file_system.access_key_id,
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file_system.secret_access_key,
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@ -406,16 +600,19 @@ defimpl Livebook.FileSystem, for: Livebook.FileSystem.S3 do
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body || "",
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uri_encode_path: false
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)
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body = body && {"application/octet-stream", body}
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HTTP.request(method, url, headers: headers, body: body)
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end
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defp decode({:ok, status, headers, body}) do
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guess_xml? = String.starts_with?(body, "<?xml")
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case HTTP.fetch_content_type(headers) do
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{:ok, content_type} when content_type in ["text/xml", "application/xml"] ->
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{:ok, status, headers, XML.decode!(body)}
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# Apparently some requests return XML without content-type
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:error when guess_xml? ->
|
||||
{:ok, status, headers, XML.decode!(body)}
|
||||
|
||||
_ ->
|
||||
{:ok, status, headers, body}
|
||||
end
|
||||
|
|
|
|||
|
|
@ -1719,7 +1719,7 @@ defmodule Livebook.Session do
|
|||
end
|
||||
|
||||
defp session_tmp_dir(session_id) do
|
||||
livebook_tmp_path()
|
||||
Livebook.Config.tmp_path()
|
||||
|> Path.join("sessions/#{session_id}")
|
||||
|> FileSystem.Utils.ensure_dir_path()
|
||||
|> FileSystem.File.local()
|
||||
|
|
@ -1735,7 +1735,7 @@ defmodule Livebook.Session do
|
|||
"""
|
||||
@spec local_assets_path(String.t()) :: String.t()
|
||||
def local_assets_path(hash) do
|
||||
Path.join([livebook_tmp_path(), "assets", encode_path_component(hash)])
|
||||
Path.join([Livebook.Config.tmp_path(), "assets", encode_path_component(hash)])
|
||||
end
|
||||
|
||||
@doc """
|
||||
|
|
@ -1765,11 +1765,6 @@ defmodule Livebook.Session do
|
|||
String.replace(component, [".", "/", "\\", ":"], "_")
|
||||
end
|
||||
|
||||
defp livebook_tmp_path() do
|
||||
tmp_dir = System.tmp_dir!() |> Path.expand()
|
||||
Path.join(tmp_dir, "livebook")
|
||||
end
|
||||
|
||||
defp initialize_files_from(state, {:inline, contents_map}) do
|
||||
write_attachment_file_entries(state, fn destination_file, file_entry ->
|
||||
case Map.fetch(contents_map, file_entry.name) do
|
||||
|
|
@ -1786,8 +1781,8 @@ defmodule Livebook.Session do
|
|||
|> Livebook.Utils.expand_url(file_entry.name)
|
||||
|> Livebook.Notebook.ContentLoader.rewrite_url()
|
||||
|
||||
case fetch_content(source_url) do
|
||||
{:ok, content} -> FileSystem.File.write(destination_file, content)
|
||||
case download_content(source_url, destination_file) do
|
||||
:ok -> :ok
|
||||
{:error, _message, 404} -> :ok
|
||||
{:error, message, _status} -> {:error, message}
|
||||
end
|
||||
|
|
@ -2491,8 +2486,8 @@ defmodule Livebook.Session do
|
|||
|
||||
defp file_entry_path_from_url(state, name, url, callback) do
|
||||
fetcher = fn cache_file ->
|
||||
case fetch_content(url) do
|
||||
{:ok, content} -> FileSystem.File.write(cache_file, content)
|
||||
case download_content(url, cache_file) do
|
||||
:ok -> :ok
|
||||
{:error, message, _} -> {:error, message}
|
||||
end
|
||||
end
|
||||
|
|
@ -2731,11 +2726,9 @@ defmodule Livebook.Session do
|
|||
def to_attachment_file_entry(session, %{type: :url} = file_entry) do
|
||||
destination = FileSystem.File.resolve(session.files_dir, file_entry.name)
|
||||
|
||||
case fetch_content(file_entry.url) do
|
||||
{:ok, content} ->
|
||||
with :ok <- FileSystem.File.write(destination, content) do
|
||||
case download_content(file_entry.url, destination) do
|
||||
:ok ->
|
||||
{:ok, %{name: file_entry.name, type: :attachment}}
|
||||
end
|
||||
|
||||
{:error, message, _status} ->
|
||||
{:error, message}
|
||||
|
|
@ -2746,16 +2739,13 @@ defmodule Livebook.Session do
|
|||
{:ok, file_entry}
|
||||
end
|
||||
|
||||
defp fetch_content(url) do
|
||||
case Livebook.Utils.HTTP.request(:get, url) do
|
||||
{:ok, 200, _headers, body} ->
|
||||
{:ok, body}
|
||||
defp download_content(url, file) do
|
||||
case Livebook.Utils.HTTP.download(url, file) do
|
||||
{:ok, _file} ->
|
||||
:ok
|
||||
|
||||
{:ok, status, _headers, _body} ->
|
||||
{:error, "failed to download file from the given URL", status}
|
||||
|
||||
_ ->
|
||||
{:error, "failed to download file from the given URL", nil}
|
||||
{:error, message, status} ->
|
||||
{:error, "download failed, " <> message, status}
|
||||
end
|
||||
end
|
||||
end
|
||||
|
|
|
|||
|
|
@ -83,6 +83,125 @@ defmodule Livebook.Utils.HTTP do
|
|||
end)
|
||||
end
|
||||
|
||||
@doc """
|
||||
Downloads resource at the given URL into `collectable`.
|
||||
|
||||
If collectable raises and error, it is rescued and an error tuple
|
||||
is returned.
|
||||
|
||||
## Options
|
||||
|
||||
* `:headers` - request headers
|
||||
|
||||
"""
|
||||
@spec download(String.t(), Collectable.t(), keyword()) ::
|
||||
{:ok, Collectable.t()} | {:error, String.t(), status()}
|
||||
def download(url, collectable, opts \\ []) do
|
||||
headers = build_headers(opts[:headers] || [])
|
||||
|
||||
request = {url, headers}
|
||||
http_opts = [ssl: http_ssl_opts()]
|
||||
|
||||
caller = self()
|
||||
|
||||
receiver = fn reply_info ->
|
||||
request_id = elem(reply_info, 0)
|
||||
|
||||
# Cancel the request if the caller terminates
|
||||
if Process.alive?(caller) do
|
||||
send(caller, {:http, reply_info})
|
||||
else
|
||||
:httpc.cancel_request(request_id)
|
||||
end
|
||||
end
|
||||
|
||||
opts = [stream: :self, sync: false, receiver: receiver]
|
||||
|
||||
{:ok, request_id} = :httpc.request(:get, request, http_opts, opts)
|
||||
|
||||
try do
|
||||
{acc, collector} = Collectable.into(collectable)
|
||||
|
||||
try do
|
||||
download_loop(%{
|
||||
request_id: request_id,
|
||||
total_size: nil,
|
||||
size: nil,
|
||||
acc: acc,
|
||||
collector: collector
|
||||
})
|
||||
catch
|
||||
kind, reason ->
|
||||
collector.(acc, :halt)
|
||||
:httpc.cancel_request(request_id)
|
||||
exception = Exception.normalize(kind, reason, __STACKTRACE__)
|
||||
{:error, Exception.message(exception), nil}
|
||||
else
|
||||
{:ok, state} ->
|
||||
acc = state.collector.(state.acc, :done)
|
||||
{:ok, acc}
|
||||
|
||||
{:error, message, status} ->
|
||||
collector.(acc, :halt)
|
||||
:httpc.cancel_request(request_id)
|
||||
{:error, message, status}
|
||||
end
|
||||
catch
|
||||
kind, reason ->
|
||||
:httpc.cancel_request(request_id)
|
||||
exception = Exception.normalize(kind, reason, __STACKTRACE__)
|
||||
{:error, Exception.message(exception), nil}
|
||||
end
|
||||
end
|
||||
|
||||
defp download_loop(state) do
|
||||
receive do
|
||||
{:http, reply_info} when elem(reply_info, 0) == state.request_id ->
|
||||
download_receive(state, reply_info)
|
||||
end
|
||||
end
|
||||
|
||||
defp download_receive(_state, {_, {:error, error}}) do
|
||||
{:error, "reason: #{inspect(error)}", nil}
|
||||
end
|
||||
|
||||
defp download_receive(state, {_, {{_, 200, _}, _headers, body}}) do
|
||||
acc = state.collector.(state.acc, {:cont, body})
|
||||
{:ok, %{state | acc: acc}}
|
||||
end
|
||||
|
||||
defp download_receive(_state, {_, {{_, status, _}, _headers, _body}}) do
|
||||
{:error, "got HTTP status: #{status}", status}
|
||||
end
|
||||
|
||||
defp download_receive(state, {_, :stream_start, headers}) do
|
||||
total_size = total_size(headers)
|
||||
download_loop(%{state | total_size: total_size, size: 0})
|
||||
end
|
||||
|
||||
defp download_receive(state, {_, :stream, body_part}) do
|
||||
acc = state.collector.(state.acc, {:cont, body_part})
|
||||
state = %{state | acc: acc}
|
||||
|
||||
part_size = byte_size(body_part)
|
||||
state = update_in(state.size, &(&1 + part_size))
|
||||
download_loop(state)
|
||||
end
|
||||
|
||||
defp download_receive(state, {_, :stream_end, _headers}) do
|
||||
{:ok, state}
|
||||
end
|
||||
|
||||
defp total_size(headers) do
|
||||
case List.keyfind(headers, ~c"content-length", 0) do
|
||||
{_, content_length} ->
|
||||
List.to_integer(content_length)
|
||||
|
||||
_ ->
|
||||
nil
|
||||
end
|
||||
end
|
||||
|
||||
# Load SSL certificates
|
||||
|
||||
crt_file = CAStore.file_path()
|
||||
|
|
|
|||
|
|
@ -268,7 +268,7 @@ defmodule Livebook.FileSystem.FileTest do
|
|||
|
||||
describe "copy/2" do
|
||||
@tag :tmp_dir
|
||||
test "supports regular files from different file systems via explicit read and write",
|
||||
test "supports regular files from different file systems via stream read and write",
|
||||
%{tmp_dir: tmp_dir} do
|
||||
bypass = Bypass.open()
|
||||
s3_fs = FileSystem.S3.new("http://localhost:#{bypass.port}/mybucket", "key", "secret")
|
||||
|
|
@ -281,6 +281,7 @@ defmodule Livebook.FileSystem.FileTest do
|
|||
src_file = FileSystem.File.new(local_fs, Path.join(tmp_dir, "src_file.txt"))
|
||||
dest_file = FileSystem.File.new(s3_fs, "/dest_file.txt")
|
||||
|
||||
# Note: the content is small, so write is a single request
|
||||
Bypass.expect_once(bypass, "PUT", "/mybucket/dest_file.txt", fn conn ->
|
||||
assert {:ok, "content", conn} = Plug.Conn.read_body(conn)
|
||||
|
||||
|
|
@ -291,7 +292,7 @@ defmodule Livebook.FileSystem.FileTest do
|
|||
end
|
||||
|
||||
@tag :tmp_dir
|
||||
test "supports directories from different file systems via explicit read and write",
|
||||
test "supports directories from different file systems via stream read and write",
|
||||
%{tmp_dir: tmp_dir} do
|
||||
bypass = Bypass.open()
|
||||
s3_fs = FileSystem.S3.new("http://localhost:#{bypass.port}/mybucket", "key", "secret")
|
||||
|
|
@ -309,6 +310,7 @@ defmodule Livebook.FileSystem.FileTest do
|
|||
src_dir = FileSystem.File.new(local_fs, Path.join(tmp_dir, "src_dir") <> "/")
|
||||
dest_dir = FileSystem.File.new(s3_fs, "/dest_dir/")
|
||||
|
||||
# Note: the content is small, so write is a single request
|
||||
Bypass.expect_once(bypass, "PUT", "/mybucket/dest_dir/nested/file.txt", fn conn ->
|
||||
assert {:ok, "content", conn} = Plug.Conn.read_body(conn)
|
||||
Plug.Conn.resp(conn, 200, "")
|
||||
|
|
@ -442,4 +444,34 @@ defmodule Livebook.FileSystem.FileTest do
|
|||
assert %{path: p("/dir/.txt")} = FileSystem.File.ensure_extension(dir, ".txt")
|
||||
end
|
||||
end
|
||||
|
||||
describe "Collectable into" do
|
||||
@tag :tmp_dir
|
||||
test "uses chunked write to file", %{tmp_dir: tmp_dir} do
|
||||
path = Path.join(tmp_dir, "dir/file.txt")
|
||||
file = FileSystem.File.local(path)
|
||||
|
||||
chunk = String.duplicate("a", 2048)
|
||||
|
||||
chunk |> List.duplicate(10) |> Enum.into(file)
|
||||
|
||||
assert FileSystem.File.read(file) == {:ok, String.duplicate(chunk, 10)}
|
||||
end
|
||||
end
|
||||
|
||||
describe "read_stream_into/2" do
|
||||
@tag :tmp_dir
|
||||
test "collects file contents", %{tmp_dir: tmp_dir} do
|
||||
create_tree!(tmp_dir,
|
||||
dir: [
|
||||
"file.txt": "content"
|
||||
]
|
||||
)
|
||||
|
||||
path = Path.join(tmp_dir, "dir/file.txt")
|
||||
file = FileSystem.File.local(path)
|
||||
|
||||
assert {:ok, "content"} = FileSystem.File.read_stream_into(file, <<>>)
|
||||
end
|
||||
end
|
||||
end
|
||||
|
|
|
|||
|
|
@ -516,4 +516,96 @@ defmodule Livebook.FileSystem.LocalTest do
|
|||
)
|
||||
end
|
||||
end
|
||||
|
||||
describe "FileSystem chunked write" do
|
||||
@tag :tmp_dir
|
||||
test "writes chunks to file", %{tmp_dir: tmp_dir} do
|
||||
file_system = Local.new()
|
||||
file_path = Path.join(tmp_dir, "file.txt")
|
||||
|
||||
assert {:ok, state} = FileSystem.write_stream_init(file_system, file_path, [])
|
||||
|
||||
chunk = String.duplicate("a", 2048)
|
||||
|
||||
state =
|
||||
for _ <- 1..10, reduce: state do
|
||||
state ->
|
||||
assert {:ok, state} = FileSystem.write_stream_chunk(file_system, state, chunk)
|
||||
state
|
||||
end
|
||||
|
||||
assert :ok = FileSystem.write_stream_finish(file_system, state)
|
||||
|
||||
assert File.read!(file_path) == String.duplicate(chunk, 10)
|
||||
end
|
||||
|
||||
@tag :tmp_dir
|
||||
test "creates nonexistent directories", %{tmp_dir: tmp_dir} do
|
||||
file_system = Local.new()
|
||||
file_path = Path.join(tmp_dir, "dir/nested/file.txt")
|
||||
|
||||
assert {:ok, state} = FileSystem.write_stream_init(file_system, file_path, [])
|
||||
assert {:ok, state} = FileSystem.write_stream_chunk(file_system, state, "a")
|
||||
assert :ok = FileSystem.write_stream_finish(file_system, state)
|
||||
|
||||
assert File.read!(file_path) == "a"
|
||||
end
|
||||
|
||||
@tag :tmp_dir
|
||||
test "overrides existing files on finish", %{tmp_dir: tmp_dir} do
|
||||
create_tree!(tmp_dir,
|
||||
"file.txt": "content"
|
||||
)
|
||||
|
||||
file_system = Local.new()
|
||||
file_path = Path.join(tmp_dir, "file.txt")
|
||||
|
||||
assert {:ok, state} = FileSystem.write_stream_init(file_system, file_path, [])
|
||||
assert {:ok, state} = FileSystem.write_stream_chunk(file_system, state, "new content")
|
||||
assert :ok = FileSystem.write_stream_finish(file_system, state)
|
||||
|
||||
assert File.read!(file_path) == "new content"
|
||||
end
|
||||
|
||||
@tag :tmp_dir
|
||||
test "does not overrides existing files when halted", %{tmp_dir: tmp_dir} do
|
||||
create_tree!(tmp_dir,
|
||||
"file.txt": "content"
|
||||
)
|
||||
|
||||
file_system = Local.new()
|
||||
file_path = Path.join(tmp_dir, "file.txt")
|
||||
|
||||
assert {:ok, state} = FileSystem.write_stream_init(file_system, file_path, [])
|
||||
assert {:ok, state} = FileSystem.write_stream_chunk(file_system, state, "new content")
|
||||
assert :ok = FileSystem.write_stream_halt(file_system, state)
|
||||
|
||||
assert File.read!(file_path) == "content"
|
||||
end
|
||||
end
|
||||
|
||||
describe "FileSystem.read_stream_into/2" do
|
||||
@tag :tmp_dir
|
||||
test "returns an error when a nonexistent file is given", %{tmp_dir: tmp_dir} do
|
||||
file_system = Local.new()
|
||||
file_path = Path.join(tmp_dir, "nonexistent.txt")
|
||||
|
||||
assert {:error, "no such file or directory"} =
|
||||
FileSystem.read_stream_into(file_system, file_path, <<>>)
|
||||
end
|
||||
|
||||
@tag :tmp_dir
|
||||
test "collects file contents", %{tmp_dir: tmp_dir} do
|
||||
create_tree!(tmp_dir,
|
||||
dir: [
|
||||
"file.txt": "content"
|
||||
]
|
||||
)
|
||||
|
||||
file_system = Local.new()
|
||||
file_path = Path.join(tmp_dir, "dir/file.txt")
|
||||
|
||||
assert {:ok, "content"} = FileSystem.read_stream_into(file_system, file_path, <<>>)
|
||||
end
|
||||
end
|
||||
end
|
||||
|
|
|
|||
|
|
@ -723,6 +723,278 @@ defmodule Livebook.FileSystem.S3Test do
|
|||
end
|
||||
end
|
||||
|
||||
describe "FileSystem chunked write" do
|
||||
test "accumulates small chunks and sends a single request if the content is small",
|
||||
%{bypass: bypass} do
|
||||
Bypass.expect_once(bypass, "PUT", "/mybucket/dir/file.txt", fn conn ->
|
||||
assert {:ok, "ab", conn} = Plug.Conn.read_body(conn)
|
||||
|
||||
Plug.Conn.resp(conn, 200, "")
|
||||
end)
|
||||
|
||||
file_system = S3.new(bucket_url(bypass.port), "key", "secret")
|
||||
file_path = "/dir/file.txt"
|
||||
|
||||
assert {:ok, state} = FileSystem.write_stream_init(file_system, file_path, part_size: 5_000)
|
||||
assert {:ok, state} = FileSystem.write_stream_chunk(file_system, state, "a")
|
||||
assert {:ok, state} = FileSystem.write_stream_chunk(file_system, state, "b")
|
||||
assert :ok = FileSystem.write_stream_finish(file_system, state)
|
||||
end
|
||||
|
||||
test "creates a multi-part upload for contents over 50MB", %{bypass: bypass} do
|
||||
file_system = S3.new(bucket_url(bypass.port), "key", "secret")
|
||||
file_path = "/dir/file.txt"
|
||||
|
||||
chunk_3kb = String.duplicate("a", 3_000)
|
||||
|
||||
assert {:ok, state} = FileSystem.write_stream_init(file_system, file_path, part_size: 5_000)
|
||||
|
||||
Bypass.expect_once(bypass, "POST", "/mybucket/dir/file.txt", fn conn ->
|
||||
assert %{"uploads" => ""} = conn.params
|
||||
|
||||
# AWS does not return Content-Type for this request, so we emulate that
|
||||
Plug.Conn.resp(conn, 200, """
|
||||
<?xml version="1.0" encoding="UTF-8"?>
|
||||
<InitiateMultipartUploadResult>
|
||||
<UploadId>1</UploadId>
|
||||
</InitiateMultipartUploadResult>
|
||||
""")
|
||||
end)
|
||||
|
||||
Bypass.expect_once(bypass, "PUT", "/mybucket/dir/file.txt", fn conn ->
|
||||
assert %{"uploadId" => "1", "partNumber" => "1"} = conn.params
|
||||
assert {:ok, body, conn} = Plug.Conn.read_body(conn)
|
||||
assert byte_size(body) == 5_000
|
||||
|
||||
conn
|
||||
|> Plug.Conn.put_resp_header("ETag", "value1")
|
||||
|> Plug.Conn.resp(200, "")
|
||||
end)
|
||||
|
||||
assert {:ok, state} = FileSystem.write_stream_chunk(file_system, state, chunk_3kb)
|
||||
assert {:ok, state} = FileSystem.write_stream_chunk(file_system, state, chunk_3kb)
|
||||
|
||||
Bypass.expect_once(bypass, "PUT", "/mybucket/dir/file.txt", fn conn ->
|
||||
assert %{"uploadId" => "1", "partNumber" => "2"} = conn.params
|
||||
assert {:ok, body, conn} = Plug.Conn.read_body(conn)
|
||||
assert byte_size(body) == 5_000
|
||||
|
||||
conn
|
||||
|> Plug.Conn.put_resp_header("ETag", "value2")
|
||||
|> Plug.Conn.resp(200, "")
|
||||
end)
|
||||
|
||||
assert {:ok, state} = FileSystem.write_stream_chunk(file_system, state, chunk_3kb)
|
||||
assert {:ok, state} = FileSystem.write_stream_chunk(file_system, state, chunk_3kb)
|
||||
|
||||
Bypass.expect_once(bypass, "PUT", "/mybucket/dir/file.txt", fn conn ->
|
||||
assert %{"uploadId" => "1", "partNumber" => "3"} = conn.params
|
||||
assert {:ok, body, conn} = Plug.Conn.read_body(conn)
|
||||
assert byte_size(body) == 2_000
|
||||
|
||||
conn
|
||||
|> Plug.Conn.put_resp_header("ETag", "value3")
|
||||
|> Plug.Conn.resp(200, "")
|
||||
end)
|
||||
|
||||
expected_body =
|
||||
"""
|
||||
<CompleteMultipartUpload>
|
||||
<Part>
|
||||
<ETag>value1</ETag>
|
||||
<PartNumber>1</PartNumber>
|
||||
</Part>
|
||||
<Part>
|
||||
<ETag>value2</ETag>
|
||||
<PartNumber>2</PartNumber>
|
||||
</Part>
|
||||
<Part>
|
||||
<ETag>value3</ETag>
|
||||
<PartNumber>3</PartNumber>
|
||||
</Part>
|
||||
</CompleteMultipartUpload>
|
||||
"""
|
||||
|> String.replace(~r/\s/, "")
|
||||
|
||||
Bypass.expect_once(bypass, "POST", "/mybucket/dir/file.txt", fn conn ->
|
||||
assert {:ok, ^expected_body, conn} = Plug.Conn.read_body(conn)
|
||||
|
||||
conn
|
||||
|> Plug.Conn.put_resp_content_type("application/xml")
|
||||
|> Plug.Conn.resp(200, """
|
||||
<CompleteMultipartUploadResult>
|
||||
</CompleteMultipartUploadResult>
|
||||
""")
|
||||
end)
|
||||
|
||||
assert :ok = FileSystem.write_stream_finish(file_system, state)
|
||||
end
|
||||
|
||||
test "aborts the multi-part upload when halted", %{bypass: bypass} do
|
||||
file_system = S3.new(bucket_url(bypass.port), "key", "secret")
|
||||
file_path = "/dir/file.txt"
|
||||
|
||||
chunk_5kb = String.duplicate("a", 5_000)
|
||||
|
||||
assert {:ok, state} = FileSystem.write_stream_init(file_system, file_path, part_size: 5_000)
|
||||
|
||||
Bypass.expect_once(bypass, "POST", "/mybucket/dir/file.txt", fn conn ->
|
||||
assert %{"uploads" => ""} = conn.params
|
||||
|
||||
# AWS does not return Content-Type for this request, so we emulate that
|
||||
Plug.Conn.resp(conn, 200, """
|
||||
<?xml version="1.0" encoding="UTF-8"?>
|
||||
<InitiateMultipartUploadResult>
|
||||
<UploadId>1</UploadId>
|
||||
</InitiateMultipartUploadResult>
|
||||
""")
|
||||
end)
|
||||
|
||||
Bypass.expect_once(bypass, "PUT", "/mybucket/dir/file.txt", fn conn ->
|
||||
assert %{"uploadId" => "1", "partNumber" => "1"} = conn.params
|
||||
assert {:ok, body, conn} = Plug.Conn.read_body(conn)
|
||||
assert byte_size(body) == 5_000
|
||||
|
||||
conn
|
||||
|> Plug.Conn.put_resp_header("ETag", "value1")
|
||||
|> Plug.Conn.resp(200, "")
|
||||
end)
|
||||
|
||||
assert {:ok, state} = FileSystem.write_stream_chunk(file_system, state, chunk_5kb)
|
||||
|
||||
Bypass.expect_once(bypass, "DELETE", "/mybucket/dir/file.txt", fn conn ->
|
||||
assert %{"uploadId" => "1"} = conn.params
|
||||
Plug.Conn.resp(conn, 204, "")
|
||||
end)
|
||||
|
||||
assert :ok = FileSystem.write_stream_halt(file_system, state)
|
||||
end
|
||||
|
||||
test "aborts the multi-part upload when finish fails", %{bypass: bypass} do
|
||||
file_system = S3.new(bucket_url(bypass.port), "key", "secret")
|
||||
file_path = "/dir/file.txt"
|
||||
|
||||
chunk_5kb = String.duplicate("a", 5_000)
|
||||
|
||||
assert {:ok, state} = FileSystem.write_stream_init(file_system, file_path, part_size: 5_000)
|
||||
|
||||
Bypass.expect_once(bypass, "POST", "/mybucket/dir/file.txt", fn conn ->
|
||||
assert %{"uploads" => ""} = conn.params
|
||||
|
||||
# AWS does not return Content-Type for this request, so we emulate that
|
||||
Plug.Conn.resp(conn, 200, """
|
||||
<?xml version="1.0" encoding="UTF-8"?>
|
||||
<InitiateMultipartUploadResult>
|
||||
<UploadId>1</UploadId>
|
||||
</InitiateMultipartUploadResult>
|
||||
""")
|
||||
end)
|
||||
|
||||
Bypass.expect_once(bypass, "PUT", "/mybucket/dir/file.txt", fn conn ->
|
||||
assert %{"uploadId" => "1", "partNumber" => "1"} = conn.params
|
||||
assert {:ok, body, conn} = Plug.Conn.read_body(conn)
|
||||
assert byte_size(body) == 5_000
|
||||
|
||||
conn
|
||||
|> Plug.Conn.put_resp_header("ETag", "value1")
|
||||
|> Plug.Conn.resp(200, "")
|
||||
end)
|
||||
|
||||
assert {:ok, state} = FileSystem.write_stream_chunk(file_system, state, chunk_5kb)
|
||||
|
||||
expected_body =
|
||||
"""
|
||||
<CompleteMultipartUpload>
|
||||
<Part>
|
||||
<ETag>value1</ETag>
|
||||
<PartNumber>1</PartNumber>
|
||||
</Part>
|
||||
</CompleteMultipartUpload>
|
||||
"""
|
||||
|> String.replace(~r/\s/, "")
|
||||
|
||||
Bypass.expect_once(bypass, "POST", "/mybucket/dir/file.txt", fn conn ->
|
||||
assert {:ok, ^expected_body, conn} = Plug.Conn.read_body(conn)
|
||||
|
||||
conn
|
||||
|> Plug.Conn.put_resp_content_type("application/xml")
|
||||
|> Plug.Conn.resp(500, """
|
||||
<Error>
|
||||
<Message>Error message</Message>
|
||||
</Error>
|
||||
""")
|
||||
end)
|
||||
|
||||
Bypass.expect_once(bypass, "DELETE", "/mybucket/dir/file.txt", fn conn ->
|
||||
assert %{"uploadId" => "1"} = conn.params
|
||||
Plug.Conn.resp(conn, 204, "")
|
||||
end)
|
||||
|
||||
assert {:error, "error message"} = FileSystem.write_stream_finish(file_system, state)
|
||||
end
|
||||
end
|
||||
|
||||
describe "FileSystem.read_stream_into/2" do
|
||||
test "returns an error when a nonexistent key is given", %{bypass: bypass} do
|
||||
Bypass.expect_once(bypass, "GET", "/mybucket/nonexistent.txt", fn conn ->
|
||||
conn
|
||||
|> Plug.Conn.put_resp_content_type("application/xml")
|
||||
|> Plug.Conn.resp(404, """
|
||||
<Error>
|
||||
<Message>The specified key does not exist.</Message>
|
||||
</Error>
|
||||
""")
|
||||
end)
|
||||
|
||||
file_system = S3.new(bucket_url(bypass.port), "key", "secret")
|
||||
file_path = "/nonexistent.txt"
|
||||
|
||||
assert {:error, "no such file or directory"} =
|
||||
FileSystem.read_stream_into(file_system, file_path, <<>>)
|
||||
end
|
||||
|
||||
test "collects regular response", %{bypass: bypass} do
|
||||
content = """
|
||||
<MyData>
|
||||
<Info>this should not be parsed</Info>
|
||||
</MyData>
|
||||
"""
|
||||
|
||||
Bypass.expect_once(bypass, "GET", "/mybucket/dir/file.txt", fn conn ->
|
||||
# When reading the content should be returned as binary,
|
||||
# regardless the content type
|
||||
conn
|
||||
|> Plug.Conn.put_resp_content_type("application/xml")
|
||||
|> Plug.Conn.resp(200, content)
|
||||
end)
|
||||
|
||||
file_system = S3.new(bucket_url(bypass.port), "key", "secret")
|
||||
file_path = "/dir/file.txt"
|
||||
|
||||
assert {:ok, ^content} = FileSystem.read_stream_into(file_system, file_path, <<>>)
|
||||
end
|
||||
|
||||
test "collects chunked response", %{bypass: bypass} do
|
||||
chunk = String.duplicate("a", 2048)
|
||||
|
||||
Bypass.expect_once(bypass, "GET", "/mybucket/dir/file.txt", fn conn ->
|
||||
conn = Plug.Conn.send_chunked(conn, 200)
|
||||
|
||||
for _ <- 1..10, reduce: conn do
|
||||
conn ->
|
||||
{:ok, conn} = Plug.Conn.chunk(conn, chunk)
|
||||
conn
|
||||
end
|
||||
end)
|
||||
|
||||
file_system = S3.new(bucket_url(bypass.port), "key", "secret")
|
||||
file_path = "/dir/file.txt"
|
||||
|
||||
assert {:ok, content} = FileSystem.read_stream_into(file_system, file_path, <<>>)
|
||||
assert content == String.duplicate(chunk, 10)
|
||||
end
|
||||
end
|
||||
|
||||
# Helpers
|
||||
|
||||
defp bucket_url(port), do: "http://localhost:#{port}/mybucket"
|
||||
|
|
|
|||
|
|
@ -1537,14 +1537,14 @@ defmodule Livebook.SessionTest do
|
|||
url = "http://localhost:#{bypass.port}/files/image.jpg"
|
||||
|
||||
Bypass.expect_once(bypass, "GET", "/files/image.jpg", fn conn ->
|
||||
Plug.Conn.resp(conn, 404, "not fount")
|
||||
Plug.Conn.resp(conn, 404, "not found")
|
||||
end)
|
||||
|
||||
session = start_session()
|
||||
file_entry = %{type: :url, name: "image.jpg", url: url}
|
||||
|
||||
assert Session.to_attachment_file_entry(session, file_entry) ==
|
||||
{:error, "failed to download file from the given URL"}
|
||||
{:error, "download failed, got HTTP status: 404"}
|
||||
end
|
||||
end
|
||||
|
||||
|
|
|
|||
Loading…
Add table
Reference in a new issue