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phoenix
1.3.1
1.8.9
1.8.8
1.8.7
1.8.6
1.8.5
1.8.4
1.8.3
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1.8.0
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1.8.0-rc.1
1.8.0-rc.0
1.7.24
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1.7.1
1.7.0
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1.6.17
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1.6.9
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1.6.4
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1.6.0
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1.6.0-rc.0
1.5.15
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1.5.11
1.5.10
1.5.9
1.5.8
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1.5.6
1.5.5
1.5.4
1.5.3
1.5.2
1.5.1
1.5.0
1.5.0-rc.0
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1.4.16
1.4.15
1.4.14
1.4.13
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1.4.0
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1.4.0-rc.2
1.4.0-rc.1
1.4.0-rc.0
1.3.5
1.3.4
1.3.3
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1.3.1
1.3.0
1.3.0-rc.3
1.3.0-rc.2
1.3.0-rc.1
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1.2.5
1.2.4
1.2.3
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1.2.1
1.2.0
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1.1.9
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1.1.5
1.1.4
1.1.3
1.1.2
1.1.1
1.1.0
1.0.6
1.0.5
1.0.4
1.0.3
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1.0.1
1.0.0
0.17.1
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0.16.1
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0.15.0
0.14.0
0.13.1
0.13.0
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0.10.0
0.9.0
0.8.0
0.7.2
0.7.1
0.7.0
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0.6.1
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0.2.6
0.2.5
0.2.4
0.2.3
0.2.2
0.2.1
0.2.0
0.1.0
Productive. Reliable. Fast. A productive web framework that does not compromise speed or maintainability.
Security advisory:
This version has known vulnerabilities.
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Files
lib/phoenix/endpoint/render_errors.ex
defmodule Phoenix.Endpoint.RenderErrors do
# This module is used to catch failures and render them using a view.
#
# This module is automatically used in `Phoenix.Endpoint` where it
# overrides `call/2` to provide rendering. Once the error is
# rendered, the error is reraised unless it is a NoRouteError.
#
# ## Options
#
# * `:view` - the name of the view we render templates against
# * `:format` - the format to use when none is available from the request
#
@moduledoc false
@already_sent {:plug_conn, :sent}
import Plug.Conn
import Phoenix.Controller
require Logger
@doc false
defmacro __using__(opts) do
quote do
@before_compile Phoenix.Endpoint.RenderErrors
@phoenix_render_errors unquote(opts)
end
end
@doc false
defmacro __before_compile__(_) do
quote location: :keep do
defoverridable [call: 2]
def call(conn, opts) do
try do
super(conn, opts)
catch
kind, reason ->
Phoenix.Endpoint.RenderErrors.__catch__(conn, kind, reason, @phoenix_render_errors)
end
end
end
end
@doc false
def __catch__(_conn, :error, %Plug.Conn.WrapperError{} = wrapper, opts) do
%{conn: conn, kind: kind, reason: reason, stack: stack} = wrapper
__catch__(conn, kind, reason, stack, opts)
end
def __catch__(conn, kind, reason, opts) do
__catch__(conn, kind, reason, System.stacktrace, opts)
end
defp __catch__(_conn, :error, %Phoenix.Router.NoRouteError{} = reason, stack, opts) do
maybe_render(reason.conn, :error, reason, stack, opts)
:erlang.raise(:error, reason, stack)
end
defp __catch__(conn, kind, reason, stack, opts) do
maybe_render(conn, kind, reason, stack, opts)
:erlang.raise(kind, reason, stack)
end
## Rendering
# Made public with @doc false for testing.
@doc false
def render(conn, kind, reason, stack, opts) do
conn = conn |> maybe_fetch_query_params() |> maybe_fetch_format(opts)
reason = Exception.normalize(kind, reason, stack)
format = get_format(conn)
status = status(kind, reason)
format = "#{status}.#{format}"
conn
|> put_layout(opts[:layout] || false)
|> put_view(opts[:view])
|> put_status(status)
|> render(format, %{kind: kind, reason: reason, stack: stack})
end
defp maybe_render(conn, kind, reason, stack, opts) do
receive do
@already_sent ->
send self(), @already_sent
%Plug.Conn{conn | state: :sent}
after
0 ->
render conn, kind, reason, stack, opts
end
end
defp maybe_fetch_query_params(conn) do
fetch_query_params(conn)
rescue
Plug.Conn.InvalidQueryError ->
case conn.params do
%Plug.Conn.Unfetched{} -> %Plug.Conn{conn | query_params: %{}, params: %{}}
params -> %Plug.Conn{conn | query_params: %{}, params: params}
end
end
defp maybe_fetch_format(conn, opts) do
# We ignore params["_format"] although we respect any already stored.
case conn.private do
%{phoenix_format: format} when is_binary(format) -> conn
_ -> accepts(conn, Keyword.fetch!(opts, :accepts))
end
rescue
e in Phoenix.NotAcceptableError ->
fallback_format = Keyword.fetch!(opts, :accepts) |> List.first()
Logger.debug("Could not render errors due to #{Exception.message(e)}. " <>
"Errors will be rendered using the first accepted format #{inspect fallback_format} as fallback. " <>
"Please customize the :accepts option under the :render_errors configuration " <>
"in your endpoint if you want to support other formats or choose another fallback")
put_format(conn, fallback_format)
end
defp status(:error, error), do: Plug.Exception.status(error)
defp status(:throw, _throw), do: 500
defp status(:exit, _exit), do: 500
end