1 files changed, 51 insertions, 0 deletions
diff --git a/lib/chef/config_fetcher.rb b/lib/chef/config_fetcher.rb
new file mode 100644
index 0000000000..369d36c459
--- /dev/null
+++ b/lib/chef/config_fetcher.rb
@@ -0,0 +1,51 @@
+require 'chef/http/simple'
+class Chef
+  class ConfigFetcher
+
+    attr_reader :config_location
+
+    def initialize(config_location)
+      @config_location = config_location
+    end
+
+    def fetch_json
+      config_data = read_config
+      begin
+        Chef::JSONCompat.from_json(config_data)
+      rescue JSON::ParserError => error
+        Chef::Application.fatal!("Could not parse the provided JSON file (#{config_location})!: " + error.message, 2)
+      end
+    end
+
+    def read_config
+      if remote_config?
+        fetch_remote_config
+      else
+        read_local_config
+      end
+    end
+
+    def fetch_remote_config
+      http = Chef::HTTP::Simple.new(config_location)
+      http.get("")
+    rescue SocketError, SystemCallError => error
+      Chef::Application.fatal!("Cannot fetch config '#{config_location}': '#{error.class}: #{error.message}", 2)
+    end
+
+    def read_local_config
+      ::File.read(config_location)
+    rescue Errno::ENOENT => error
+      Chef::Application.fatal!("I cannot find #{config_location}", 2)
+    rescue Errno::EACCES => error
+      Chef::Application.fatal!("Permissions are incorrect on #{config_location}. Please chmod a+r #{config_location}", 2)
+    end
+
+    def http
+      Chef::HTTP::Simple.new(config_location)
+    end
+
+    def remote_config?
+      !!(config_location =~ %r{^(http|https)://})
+    end
+  end
+end