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require 'tempfile'
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module Foreman
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module Renderer
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def render_safe template, allowed_methods = [], allowed_vars = {}
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if Setting[:safemode_render]
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box = Safemode::Box.new self, allowed_methods
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box.eval(ERB.new(template, nil, '-').src, allowed_vars)
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else
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allowed_vars.each { |k,v| instance_variable_set "@#{k}", v }
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ERB.new(template, nil, '-').result(binding)
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end
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end
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#returns the URL for Foreman Built status (when a host has finished the OS installation)
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def foreman_url(action = "built")
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url_for :only_path => false, :controller => "unattended", :action => action,
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:host => (Setting[:foreman_url] unless Setting[:foreman_url].blank?),
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:protocol => 'http',
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:token => (@host.token.value unless @host.token.nil?)
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end
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# provide embedded snippets support as simple erb templates
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def snippets(file)
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if ConfigTemplate.where(:name => file, :snippet => true).empty?
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render :partial => "unattended/snippets/#{file}"
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else
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return snippet(file.gsub(/^_/, ""))
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end
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end
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def snippet name
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if (template = ConfigTemplate.where(:name => name, :snippet => true).first)
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logger.debug "rendering snippet #{template.name}"
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begin
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return unattended_render(template.template)
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rescue Exception => exc
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raise "The snippet '#{name}' threw an error: #{exc}"
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end
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else
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raise "The specified snippet '#{name}' does not exist, or is not a snippet."
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end
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end
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def unattended_render template
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allowed_helpers = [ :foreman_url, :grub_pass, :snippet, :snippets, :ks_console, :root_pass, :multiboot, :jumpstart_path, :install_path,
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:miniroot, :media_path]
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allowed_variables = ({:arch => @arch, :host => @host, :osver => @osver, :mediapath => @mediapath, :static => @static,
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:yumrepo => @yumrepo, :dynamic => @dynamic, :epel => @epel, :kernel => @kernel, :initrd => @initrd,
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:preseed_server => @preseed_server, :preseed_path => @preseed_path })
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render_safe template, allowed_helpers, allowed_variables
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end
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alias_method :pxe_render, :unattended_render
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def unattended_render_to_temp_file content, prefix = id, options = {}
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file = ""
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Tempfile.open(prefix, Rails.root.join('tmp') ) do |f|
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f.print(unattended_render(content))
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f.flush
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f.chmod options[:mode] if options[:mode]
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file = f
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end
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file
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end
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end
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end
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