add apache config parser

lib/resources/apache_conf.rb

@@ -0,0 +1,114 @@
+# encoding: utf-8
+# copyright: 2015, Vulcano Security GmbH
+# license: All rights reserved
+
+require 'utils/simpleconfig'
+
+class Glob
+
+  def initialize( path )
+    @runner = Specinfra::Runner
+    @command_result ||= @runner.run_command("ls -1 #{path}")
+    @content = @command_result.stdout
+    @exit_status = @command_result.exit_status.to_i
+  end
+
+  def files
+    if @exit_status != 0 then
+      return []
+    else
+      split = @content.split("\n")
+      return split
+    end
+  end
+
+end
+
+class ApacheConf
+
+  def initialize( conf_path )
+    @runner = Specinfra::Runner
+    @conf_path = conf_path
+    @conf_dir = File.expand_path(File.dirname @conf_path)
+    @files_contents = {}
+    @content = nil
+    @params = nil
+    read_content
+  end
+
+  def content
+    @content ||= read_content
+  end
+
+  def params *opts
+    @params || read_content
+    res = @params
+    opts.each do |opt|
+      res = res[opt] unless res.nil?
+    end
+    res
+  end
+
+  def filter_comments data
+    contents = ""
+    data.each_line do |line|
+      if (!line.match(/^\s*#/)) then
+        contents << line
+      end
+    end
+    return contents
+  end
+
+  def read_content
+    @content = ""
+    @params = {}
+    to_read = [@conf_path]
+    while !to_read.empty?
+      raw_conf = read_file(to_read[0])
+      @content += raw_conf
+
+      # parse include file parameters
+      params = SimpleConfig.new(raw_conf,
+        assignment_re: /^\s*(\S+)\s+(.*)\s*$/,
+        multiple_values: true
+      ).params
+      @params.merge!(params)
+
+      to_read = to_read.drop(1)
+      # see if there is more config files to include
+      include_files = params['Include'] || []
+      include_files_optional = params['IncludeOptional'] || []
+
+      required = Array.new
+      include_files.each do |f|
+        id = File.join(@conf_dir, f)
+        required.push(Glob.new(id).files)
+      end
+
+      required.flatten!
+      to_read += required.find_all do |fp|
+        not @files_contents.key? fp
+      end
+
+      optional = Array.new
+      include_files_optional.each do |f|
+        id = File.join(@conf_dir, f)
+        optional.push(Glob.new(id).files)
+      end
+
+      optional.flatten!
+      to_read += optional.find_all do |fp|
+        not @files_contents.key? fp
+      end
+    end
+
+    # fiter comments
+    @content = filter_comments @content
+
+    @content
+  end
+
+  def read_file(path)
+    @files_contents[path] ||= @runner.get_file_content(path).stdout
+  end
+end

lib/resources/resources.rb

@@ -2,6 +2,7 @@
 # copyright: 2015, Vulcano Security GmbH
 # license: All rights reserved
 
+require 'resources/apache_conf'
 require 'resources/audit_policy'
 require 'resources/auditd_conf'
 require 'resources/auditd_rules'