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Interface for HTTP webservers, frameworks and clients.
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Files
lib/http/status_line.ex
# Basically the same as HTTP.Response,
# because the rest of a response is generic headers and fields
defmodule HTTP.StatusLine do
@moduledoc """
Working with HTTP response codes
Defined status-lines are from https://tools.ietf.org/html/rfc7231#section-6.1
"""
@external_resource "./rfc7231.status_codes"
path = Path.expand(@external_resource, Path.dirname(__ENV__.file))
{:ok, file} = File.read(path)
file = String.strip(file)
[header | lines] = String.split(file, "\n")
statuses = Enum.map(lines, fn
(status_string) ->
{code, " " <> reason_phrase} = Integer.parse(status_string)
{code, reason_phrase}
end)
@doc """
Expand a status code into the correct status line
Variable naming from https://www.w3.org/Protocols/rfc2616/rfc2616-sec6.html
"""
for status_string <- lines do
{code, " " <> reason_phrase} = Integer.parse(status_string)
def status_line(unquote(code)) do
"HTTP/1.1 " <> unquote(status_string) <> "\r\n"
end
end
@doc """
List of all statuses as tuples of `{code, reason}`
"""
def statuses do
unquote(statuses)
end
end