65 lines
1.5 KiB
Ruby
65 lines
1.5 KiB
Ruby
require 'forwardable'
|
|
require 'http/client'
|
|
|
|
module HTTP
|
|
class Response
|
|
# A streamable response body, also easily converted into a string
|
|
class Body
|
|
extend Forwardable
|
|
include Enumerable
|
|
def_delegator :to_s, :empty?
|
|
|
|
def initialize(client)
|
|
@client = client
|
|
@streaming = nil
|
|
@contents = nil
|
|
end
|
|
|
|
# Read up to length bytes, but return any data that's available
|
|
# @see HTTP::Client#readpartial
|
|
def readpartial(*args)
|
|
stream!
|
|
@client.readpartial(*args)
|
|
end
|
|
|
|
# Iterate over the body, allowing it to be enumerable
|
|
def each
|
|
while (chunk = readpartial)
|
|
yield chunk
|
|
end
|
|
end
|
|
|
|
# Eagerly consume the entire body as a string
|
|
def to_s
|
|
return @contents if @contents
|
|
fail StateError, 'body is being streamed' unless @streaming.nil?
|
|
|
|
begin
|
|
@streaming = false
|
|
@contents = ''
|
|
while (chunk = @client.readpartial)
|
|
@contents << chunk
|
|
end
|
|
rescue
|
|
@contents = nil
|
|
raise
|
|
end
|
|
|
|
@contents
|
|
end
|
|
alias_method :to_str, :to_s
|
|
|
|
# Assert that the body is actively being streamed
|
|
def stream!
|
|
fail StateError, 'body has already been consumed' if @streaming == false
|
|
@streaming = true
|
|
end
|
|
|
|
# Easier to interpret string inspect
|
|
def inspect
|
|
"#<#{self.class}:#{object_id.to_s(16)} @streaming=#{!!@streaming}>"
|
|
end
|
|
end
|
|
end
|
|
end
|