Class: PayPalHttp::HttpClient

Inherits:
Object
  • Object
show all
Defined in:
lib/paypalhttp/http_client.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(environment) ⇒ HttpClient

Returns a new instance of HttpClient.



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# File 'lib/paypalhttp/http_client.rb', line 10

def initialize(environment)
  @environment = environment
  @injectors = []
  @encoder = Encoder.new
end

Instance Attribute Details

#encoder ⇒ Object

Returns the value of attribute encoder.



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# File 'lib/paypalhttp/http_client.rb', line 8

def encoder
  @encoder
end

#environment ⇒ Object

Returns the value of attribute environment.



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# File 'lib/paypalhttp/http_client.rb', line 8

def environment
  @environment
end

Instance Method Details

#_parse_response(response) ⇒ Object 



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# File 'lib/paypalhttp/http_client.rb', line 91

def _parse_response(response)
  status_code = response.code.to_i

  result = response.body
  headers = response.to_hash
  if result && !result.empty?
    deserialized = @encoder.deserialize_response(response.body, format_headers(headers))
    if deserialized.is_a?(String) || deserialized.is_a?(Array)
      result = deserialized
    else
      result = _parse_values(deserialized)
    end
  else
    result = nil
  end

  obj = OpenStruct.new({
    :status_code => status_code,
    :result => result,
    :headers => response.to_hash,
  })

  if status_code >= 200 and status_code < 300
    return obj
  elsif
    raise HttpError.new(obj.status_code, obj.result, obj.headers)
  end
end

#_parse_values(values) ⇒ Object 



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# File 'lib/paypalhttp/http_client.rb', line 120

def _parse_values(values)
  obj = nil

  if values.is_a?(Array)
    obj = []
    values.each do |v|
      obj << _parse_values(v)
    end
  elsif values.is_a?(Hash)
    obj = OpenStruct.new()
    values.each do |k, v|
      obj[k] = _parse_values(v)
    end
  else
    obj = values
  end

  obj
end

#add_injector(&block) ⇒ Object 



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# File 'lib/paypalhttp/http_client.rb', line 20

def add_injector(&block)
  @injectors << block
end

#execute(req) ⇒ Object 



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# File 'lib/paypalhttp/http_client.rb', line 51

def execute(req)
  headers = req.headers || {}

  request = OpenStruct.new({
    :verb => req.verb,
    :path => req.path,
    :headers => headers.clone,
    :body => req.body,
  })

  if !request.headers
    request.headers = {}
  end

  @injectors.each do |injector|
    injector.call(request)
  end

  formatted_headers = format_headers(request.headers)
  if !formatted_headers["user-agent"] || formatted_headers["user-agent"] == "Ruby"
    request.headers["user-agent"] = user_agent
  end

  body = nil
  if has_body(request)
    raw_headers = request.headers
    request.headers = formatted_headers
    body = @encoder.serialize_request(request)
    request.headers = map_headers(raw_headers, request.headers)
  end

  http_request = Net::HTTPGenericRequest.new(request.verb, body != nil, true, request.path, request.headers)
  http_request.body = body

  uri = URI(@environment.base_url)
  Net::HTTP.start(uri.host, uri.port, :use_ssl => uri.scheme == 'https') do |http|
    _parse_response(http.request(http_request))
  end
end

#format_headers(headers) ⇒ Object 



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# File 'lib/paypalhttp/http_client.rb', line 28

def format_headers(headers)
  formatted_headers = {}
  headers.each do |key, value|
    # TODO: Since header is treated as a hash, val is in an array.
    # Will this cause an issue when accessing and modifying val
    # Ensure this is the case and will not propegate access issues/errors
    if key.casecmp("content-type") == 0
      value[0].downcase!
    end
      formatted_headers[key.downcase] = value
  end
  formatted_headers
end

#has_body(request) ⇒ Object 



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# File 'lib/paypalhttp/http_client.rb', line 24

def has_body(request)
  request.respond_to?(:body) and request.body
end

#map_headers(raw_headers, formatted_headers) ⇒ Object 



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# File 'lib/paypalhttp/http_client.rb', line 42

def map_headers(raw_headers , formatted_headers)
  raw_headers.each do |key, value|
    if formatted_headers.key?(key.downcase) == true
      raw_headers[key] = formatted_headers[key.downcase]
    end
  end
  raw_headers
end

#user_agent ⇒ Object 



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# File 'lib/paypalhttp/http_client.rb', line 16

def user_agent
  "PayPalHttp-Ruby HTTP/1.1"
end