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