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#
# Author:: Adam Jacob (<adam@hjksolutions.com>)
# Copyright:: Copyright (c) 2008 HJK Solutions, LLC
# License:: GNU General Public License version 2 or later
#
# This program and entire repository is free software; you can
# redistribute it and/or modify it under the terms of the GNU
# General Public License as published by the Free Software
# Foundation; either version 2 of the License, or any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
#
require File.join(File.dirname(__FILE__), "mixin", "params_validate")
require 'net/https'
require 'uri'
require 'json'
class Chef
class REST
def initialize(url)
@url = url
@cookies = Hash.new
end
# Send an HTTP GET request to the path
def get_rest(path)
run_request(:GET, create_url(path))
end
# Send an HTTP DELETE request to the path
def delete_rest(path)
run_request(:DELETE, create_url(path))
end
# Send an HTTP POST request to the path
def post_rest(path, json)
run_request(:POST, create_url(path), json)
end
# Send an HTTP PUT request to the path
def put_rest(path, json)
run_request(:PUT, create_url(path), json)
end
def create_url(path)
if path =~ /^(http|https):\/\//
URI.parse(path)
else
URI.parse("#{@url}/#{path}")
end
end
# Actually run an HTTP request. First argument is the HTTP method,
# which should be one of :GET, :PUT, :POST or :DELETE. Next is the
# URL, then an object to include in the body (which will be converted with
# .to_json) and finally, the limit of HTTP Redirects to follow (10).
#
# Typically, you won't use this method -- instead, you'll use one of
# the helper methods (get_rest, post_rest, etc.)
#
# Will return the body of the response on success.
def run_request(method, url, data=false, limit=10)
raise ArgumentError, 'HTTP redirect too deep' if limit == 0
http = Net::HTTP.new(url.host, url.port)
if url.scheme == "https"
http.use_ssl = true
if Chef::Config[:ssl_verify_mode] == :verify_none
http.verify_mode = OpenSSL::SSL::VERIFY_NONE
end
end
http.read_timeout = Chef::Config[:rest_timeout]
headers = {
'Accept' => "application/json",
}
if @cookies["#{url.host}:#{url.port}"]
headers['Cookie'] = @cookies["#{url.host}:#{url.port}"]
end
req = nil
case method
when :GET
req_path = "#{url.path}"
req_path << "?#{url.query}" if url.query
req = Net::HTTP::Get.new(req_path, headers)
when :POST
headers["Content-Type"] = 'application/json' if data
req = Net::HTTP::Post.new(url.path, headers)
req.body = data.to_json if data
when :PUT
headers["Content-Type"] = 'application/json' if data
req = Net::HTTP::Put.new(url.path, headers)
req.body = data.to_json if data
when :DELETE
req_path = "#{url.path}"
req_path << "?#{url.query}" if url.query
req = Net::HTTP::Delete.new(req_path, headers)
else
raise ArgumentError, "You must provide :GET, :PUT, :POST or :DELETE as the method"
end
Chef::Log.debug("Sending HTTP Request via #{req.method} to #{req.path}")
res = http.request(req)
if res.kind_of?(Net::HTTPSuccess)
if res['set-cookie']
@cookies["#{url.host}:#{url.port}"] = res['set-cookie']
end
if res['content-type'] == "application/json"
JSON.parse(res.body)
else
res.body
end
elsif res.kind_of?(Net::HTTPRedirection)
if res['set-cookie']
@cookies["#{url.host}:#{url.port}"] = res['set-cookie']
end
run_request(:GET, create_url(res['location']), false, limit - 1)
else
res.error!
end
end
end
end
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