Packages
plug
1.12.0
1.20.3
1.20.2
1.20.1
retired
1.20.0
retired
1.19.5
1.19.4
1.19.3
1.19.2
1.19.1
1.19.0
1.18.5
1.18.4
1.18.3
1.18.2
1.18.1
1.18.0
1.17.4
1.17.3
1.17.2
1.17.1
1.17.0
1.16.6
1.16.5
1.16.4
1.16.3
1.16.2
1.16.1
1.16.0
1.15.6
1.15.5
1.15.4
1.15.3
1.15.2
1.15.1
1.15.0
1.14.2
1.14.1
1.14.0
1.13.6
1.13.5
1.13.4
1.13.3
1.13.2
1.13.1
retired
1.13.0
retired
1.12.1
1.12.0
1.11.1
1.11.0
1.10.4
1.10.3
1.10.2
1.10.1
1.10.0
1.9.0
1.8.3
1.8.2
1.8.1
1.8.0
1.7.2
1.7.1
1.7.0
1.6.4
1.6.3
1.6.2
1.6.1
1.6.0
1.5.1
1.5.0
1.5.0-rc.2
1.5.0-rc.1
1.5.0-rc.0
1.4.5
1.4.4
1.4.3
1.4.2
1.4.1
1.4.0
1.4.0-rc.0
1.3.6
1.3.5
1.3.4
1.3.3
1.3.2
1.3.1
1.3.0
1.2.6
1.2.5
1.2.4
1.2.3
1.2.2
1.2.1
1.2.0
1.2.0-rc.0
1.1.9
1.1.8
1.1.7
1.1.6
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
1.0.2
1.0.1
1.0.0
0.14.0
0.13.1
0.13.0
0.12.2
0.12.1
0.12.0
0.11.3
0.11.2
0.11.1
0.11.0
0.10.0
0.9.0
0.8.4
0.8.3
0.8.2
0.8.1
0.8.0
0.7.0
0.6.0
0.5.3
0.5.2
0.5.1
0.5.0
0.4.4
0.4.3
0.4.2
0.4.1
Compose web applications with functions
Security advisory:
This version has known vulnerabilities.
View advisories
Current section
Files
Jump to
Current section
Files
lib/plug/method_override.ex
defmodule Plug.MethodOverride do
@moduledoc """
This plug overrides the request's `POST` method with the method defined in
the `_method` request parameter.
The `POST` method can be overridden only by these HTTP methods:
* `PUT`
* `PATCH`
* `DELETE`
This plug expects the body parameters to be already parsed and
fetched. Those can be fetched with `Plug.Parsers`.
This plug doesn't accept any options.
## Examples
Plug.MethodOverride.call(conn, [])
"""
@behaviour Plug
@allowed_methods ~w(DELETE PUT PATCH)
@impl true
def init([]), do: []
@impl true
def call(%Plug.Conn{method: "POST", body_params: body_params} = conn, []),
do: override_method(conn, body_params)
def call(%Plug.Conn{} = conn, []), do: conn
defp override_method(conn, %Plug.Conn.Unfetched{}) do
# Just skip it because maybe it is a content-type that
# we could not parse as parameters (for example, text/gps)
conn
end
defp override_method(conn, body_params) do
method = String.upcase(body_params["_method"] || "", :ascii)
if method in @allowed_methods do
%{conn | method: method}
else
conn
end
end
end