1 files changed, 150 insertions, 0 deletions
diff --git a/chef/lib/chef/rest.rb b/chef/lib/chef/rest.rb
new file mode 100644
index 0000000000..b78df6c35f
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+++ b/chef/lib/chef/rest.rb
@@ -0,0 +1,150 @@
+#
+# Author:: Adam Jacob (<adam@hjksolutions.com>)
+# Copyright:: Copyright (c) 2008 HJK Solutions, LLC
+# License:: Apache License, Version 2.0
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+# 
+#     http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+require File.join(File.dirname(__FILE__), "mixin", "params_validate")
+require 'net/https'
+require 'uri'
+require 'json'
+require 'tempfile'
+
+class Chef
+  class REST
+    
+    def initialize(url)
+      @url = url
+      @cookies = Hash.new
+    end
+    
+    # Send an HTTP GET request to the path
+    #
+    # === Parameters
+    # path:: The path to GET
+    # raw:: Whether you want the raw body returned, or JSON inflated.  Defaults 
+    #   to JSON inflated.
+    def get_rest(path, raw=false)
+      run_request(:GET, create_url(path), false, 10, raw)    
+    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, raw=false)
+      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 = Hash.new
+      unless raw
+        headers = { 
+          'Accept' => "application/json",
+        }
+      end
+      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)
+      
+      Chef::Log.debug("HTTP request headers: #{req.to_hash.inspect} ")
+
+      Chef::Log.debug("HTTP response headers: #{res.to_hash.inspect} ")
+
+      if res.kind_of?(Net::HTTPSuccess)
+        if res['set-cookie']
+          @cookies["#{url.host}:#{url.port}"] = res['set-cookie']
+        end
+        if res['content-type'] =~ /json/
+          JSON.parse(res.body)
+        else
+          if raw
+            tf = Tempfile.new("chef-rest")
+            tf.print(res.body)
+            tf.close
+            tf
+          else
+            res.body
+          end
+        end
+      elsif res.kind_of?(Net::HTTPFound)
+        if res['set-cookie']
+          @cookies["#{url.host}:#{url.port}"] = res['set-cookie']
+        end
+        run_request(:GET, create_url(res['location']), false, limit - 1, raw)
+      else
+        res.error!
+      end
+    end
+ 
+  end
+end