36 lines
1.1 KiB
Elixir
36 lines
1.1 KiB
Elixir
defmodule Mobilizon.Service.HTTP.Utils do
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@moduledoc """
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Utils for HTTP operations
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"""
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@spec get_header(Enum.t(), String.t()) :: String.t() | nil
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def get_header(headers, key) do
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key = String.downcase(key)
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case List.keyfind(headers, key, 0) do
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{^key, value} -> String.downcase(value)
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nil -> nil
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end
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end
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@spec is_content_type?(Enum.t(), String.t() | list(String.t())) :: boolean
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def is_content_type?(headers, content_type) do
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headers
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|> get_header("Content-Type")
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|> content_type_header_matches(content_type)
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end
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@spec content_type_header_matches(String.t() | nil, Enum.t()) :: boolean
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defp content_type_header_matches(header, content_types)
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defp content_type_header_matches(nil, _content_types), do: false
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defp content_type_header_matches(header, content_type)
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when is_binary(header) and is_binary(content_type),
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do: content_type_header_matches(header, [content_type])
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defp content_type_header_matches(header, content_types)
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when is_binary(header) and is_list(content_types) do
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Enum.any?(content_types, fn content_type -> String.starts_with?(header, content_type) end)
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end
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end
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