2010-04-21 00:58:30 -04:00
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require 'active_support/core_ext/hash/conversions'
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2009-12-22 18:11:21 -05:00
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require 'action_dispatch/http/request'
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2010-04-21 00:58:58 -04:00
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require 'active_support/core_ext/hash/indifferent_access'
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2009-04-22 19:48:58 -04:00
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2009-01-27 19:54:01 -05:00
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module ActionDispatch
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2009-01-17 21:29:50 -05:00
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class ParamsParser
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DEFAULT_PARSERS = {
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Mime::XML => :xml_simple,
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Mime::JSON => :json
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}
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2009-01-17 21:29:50 -05:00
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2009-08-21 17:49:33 -04:00
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def initialize(app, parsers = {})
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@app, @parsers = app, DEFAULT_PARSERS.merge(parsers)
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2009-01-17 21:29:50 -05:00
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end
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def call(env)
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if params = parse_formatted_parameters(env)
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2009-04-30 14:45:12 -04:00
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env["action_dispatch.request.request_parameters"] = params
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2009-01-17 21:29:50 -05:00
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end
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@app.call(env)
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end
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private
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def parse_formatted_parameters(env)
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request = Request.new(env)
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return false if request.content_length.zero?
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2010-03-28 16:40:38 -04:00
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mime_type = content_type_from_legacy_post_data_format_header(env) ||
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request.content_mime_type
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2009-08-21 17:49:33 -04:00
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strategy = @parsers[mime_type]
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2009-01-17 21:29:50 -05:00
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return false unless strategy
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case strategy
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2009-12-20 21:37:09 -05:00
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when Proc
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strategy.call(request.raw_post)
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when :xml_simple, :xml_node
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2010-05-06 07:40:48 -04:00
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data = Hash.from_xml(request.body.read) || {}
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2010-04-07 14:42:07 -04:00
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request.body.rewind if request.body.respond_to?(:rewind)
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data.with_indifferent_access
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when :yaml
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2010-01-19 23:51:41 -05:00
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YAML.load(request.raw_post)
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2009-12-20 21:37:09 -05:00
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when :json
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2010-04-07 14:42:07 -04:00
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data = ActiveSupport::JSON.decode(request.body)
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request.body.rewind if request.body.respond_to?(:rewind)
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2010-04-07 14:12:47 -04:00
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data = {:_json => data} unless data.is_a?(Hash)
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data.with_indifferent_access
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else
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false
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2009-01-17 21:29:50 -05:00
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end
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rescue Exception => e # YAML, XML or Ruby code block errors
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2009-08-11 00:56:46 -04:00
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logger.debug "Error occurred while parsing request parameters.\nContents:\n\n#{request.raw_post}"
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2009-01-17 21:29:50 -05:00
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raise
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{ "body" => request.raw_post,
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"content_type" => request.content_mime_type,
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"content_length" => request.content_length,
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"exception" => "#{e.message} (#{e.class})",
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"backtrace" => e.backtrace }
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2009-01-17 21:29:50 -05:00
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end
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def content_type_from_legacy_post_data_format_header(env)
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if x_post_format = env['HTTP_X_POST_DATA_FORMAT']
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case x_post_format.to_s.downcase
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2009-12-20 21:37:09 -05:00
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when 'yaml' then return Mime::YAML
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when 'xml' then return Mime::XML
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2009-01-17 21:29:50 -05:00
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end
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end
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nil
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end
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2009-08-11 00:56:46 -04:00
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def logger
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defined?(Rails.logger) ? Rails.logger : Logger.new($stderr)
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end
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2009-01-17 21:29:50 -05:00
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end
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2010-04-07 14:42:07 -04:00
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end
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