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Edit File : erbhandler.rb \| Size : 2.27 KB
# frozen_string_literal: false # # erbhandler.rb -- ERBHandler Class # # Author: IPR -- Internet Programming with Ruby -- writers # Copyright (c) 2001 TAKAHASHI Masayoshi, GOTOU Yuuzou # Copyright (c) 2002 Internet Programming with Ruby writers. All rights # reserved. # # $IPR: erbhandler.rb,v 1.25 2003/02/24 19:25:31 gotoyuzo Exp $ require_relative 'abstract' require 'erb' module WEBrick module HTTPServlet ## # ERBHandler evaluates an ERB file and returns the result. This handler # is automatically used if there are .rhtml files in a directory served by # the FileHandler. # # ERBHandler supports GET and POST methods. # # The ERB file is evaluated with the local variables +servlet_request+ and # +servlet_response+ which are a WEBrick::HTTPRequest and # WEBrick::HTTPResponse respectively. # # Example .rhtml file: # # Request to <%= servlet_request.request_uri %> # # Query params <%= servlet_request.query.inspect %> class ERBHandler < AbstractServlet ## # Creates a new ERBHandler on +server+ that will evaluate and serve the # ERB file +name+ def initialize(server, name) super(server, name) @script_filename = name end ## # Handles GET requests def do_GET(req, res) unless defined?(ERB) @logger.warn "#{self.class}: ERB not defined." raise HTTPStatus::Forbidden, "ERBHandler cannot work." end begin data = File.open(@script_filename, &:read) res.body = evaluate(ERB.new(data), req, res) res['content-type'] \|\|= HTTPUtils::mime_type(@script_filename, @config[:MimeTypes]) rescue StandardError raise rescue Exception => ex @logger.error(ex) raise HTTPStatus::InternalServerError, ex.message end end ## # Handles POST requests alias do_POST do_GET private ## # Evaluates +erb+ providing +servlet_request+ and +servlet_response+ as # local variables. def evaluate(erb, servlet_request, servlet_response) Module.new.module_eval{ servlet_request.meta_vars servlet_request.query erb.result(binding) } end end end end Back

Edit File : erbhandler.rb | Size : 2.27 KB

# frozen_string_literal: false
#
# erbhandler.rb -- ERBHandler Class
#
# Author: IPR -- Internet Programming with Ruby -- writers
# Copyright (c) 2001 TAKAHASHI Masayoshi, GOTOU Yuuzou
# Copyright (c) 2002 Internet Programming with Ruby writers. All rights
# reserved.
#
# $IPR: erbhandler.rb,v 1.25 2003/02/24 19:25:31 gotoyuzo Exp $

require_relative 'abstract'

require 'erb'

module WEBrick
  module HTTPServlet

##
    # ERBHandler evaluates an ERB file and returns the result.  This handler
    # is automatically used if there are .rhtml files in a directory served by
    # the FileHandler.
    #
    # ERBHandler supports GET and POST methods.
    #
    # The ERB file is evaluated with the local variables +servlet_request+ and
    # +servlet_response+ which are a WEBrick::HTTPRequest and
    # WEBrick::HTTPResponse respectively.
    #
    # Example .rhtml file:
    #
    #   Request to <%= servlet_request.request_uri %>
    #
    #   Query params <%= servlet_request.query.inspect %>

class ERBHandler < AbstractServlet

##
      # Creates a new ERBHandler on +server+ that will evaluate and serve the
      # ERB file +name+

def initialize(server, name)
        super(server, name)
        @script_filename = name
      end

##
      # Handles GET requests

def do_GET(req, res)
        unless defined?(ERB)
          @logger.warn "#{self.class}: ERB not defined."
          raise HTTPStatus::Forbidden, "ERBHandler cannot work."
        end
        begin
          data = File.open(@script_filename, &:read)
          res.body = evaluate(ERB.new(data), req, res)
          res['content-type'] ||=
            HTTPUtils::mime_type(@script_filename, @config[:MimeTypes])
        rescue StandardError
          raise
        rescue Exception => ex
          @logger.error(ex)
          raise HTTPStatus::InternalServerError, ex.message
        end
      end

##
      # Handles POST requests

alias do_POST do_GET

private

##
      # Evaluates +erb+ providing +servlet_request+ and +servlet_response+ as
      # local variables.

def evaluate(erb, servlet_request, servlet_response)
        Module.new.module_eval{
          servlet_request.meta_vars
          servlet_request.query
          erb.result(binding)
        }
      end
    end
  end
end

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