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module TwitterOAuth
class Client
CRLF = "\r\n"
private
# Properly encodes images in form/multipart specification for upload via OAuth.
def http_multipart_data(params)
body = ""
headers = {}
boundary = Time.now.to_i.to_s(16)
headers["Content-Type"] = "multipart/form-data; boundary=#{boundary}"
params.each do |key,value|
esc_key = OAuth::Helper.escape(key.to_s)
body << "--#{boundary}#{CRLF}"
if value.respond_to?(:read)
mime_type = MIME::Types.type_for(value.path)[0] || MIME::Types["application/octet-stream"][0]
body << "Content-Disposition: form-data; name=\"#{esc_key}\"; filename=\"#{File.basename(value.path)}\"#{CRLF}"
body << "Content-Type: #{mime_type.simplified}#{CRLF*2}"
body << value.read
else
body << "Content-Disposition: form-data; name=\"#{esc_key}\"#{CRLF*2}#{value}"
end
end
body << "--#{boundary}--#{CRLF*2}"
headers["Content-Length"] = body.size.to_s
return [ body, headers ]
end
end
end
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