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mime_from_contenttype(::String)::MIME #8

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mime_from_contenttype(::String)::MIME #8

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74e5f6f
mime_from_contenttype(::String)::MIME
fonsp Mar 29, 2022
67b81ae
Update MIMEs.jl
fonsp Mar 29, 2022
86aacc0
tests
fonsp Mar 29, 2022
d0ac067
docstring fix
fonsp Mar 29, 2022
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26 changes: 25 additions & 1 deletion src/MIMEs.jl
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Original file line number Diff line number Diff line change
Expand Up @@ -146,11 +146,35 @@ contenttype_from_mime(MIME"application/x-bogus"()) == "application/x-bogus"
```

# See also:
[`charset_from_mime`](@ref)
[`charset_from_mime`](@ref), [`mime_from_contenttype`](@ref)
"""
contenttype_from_mime(mime::MIME) = let c = charset_from_mime(mime)
c === nothing ? string(mime) : "$(string(mime)); charset=$(lowercase(c))"
end


"""
```julia
mime_from_contenttype(content_type::String[, default::T=nothing])::Union{MIME,T}
```

Extract a MIME from a Content-Type header value. If the input is empty, `default` is returned.

# Examples:
```julia
mime_from_contenttype("application/json; charset=utf-8") == MIME"application/json"()
mime_from_contenttype("application/x-bogus") == MIME"application/x-bogus"()
mime_from_contenttype("") == nothing
mime_from_contenttype("", MIME"application/octet-stream"()) == MIME"application/octet-stream"()
```

# See also:
[`contenttype_from_mime`](@ref)
"""
function mime_from_contenttype(content_type::String, default=nothing)
result = strip(split(content_type, ';')[1])
isempty(result) ? default : MIME(result)
end


end
6 changes: 6 additions & 0 deletions test/runtests.jl
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Expand Up @@ -37,6 +37,12 @@ sub(s) = SubString(s, 1)
@test contenttype_from_mime(MIME"application/json"()) == "application/json; charset=utf-8"
@test contenttype_from_mime(MIME"application/x-bogus"()) == "application/x-bogus"


@test mime_from_contenttype("application/json; charset=utf-8") == MIME"application/json"()
@test mime_from_contenttype("application/x-bogus") == MIME"application/x-bogus"()
@test mime_from_contenttype("") == nothing
@test mime_from_contenttype("", MIME"application/octet-stream"()) == MIME"application/octet-stream"()

# from https://developer.mozilla.org/en-US/docs/Web/HTTP/Basics_of_HTTP/MIME_types/Common_types
const mdn = Dict(
".bin" => "application/octet-stream",
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