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require 'cgi'
class CGI #:nodoc:
module QueryExtension
# Remove the old initialize_query method before redefining it.
remove_method :initialize_query
# Initialize the data from the query.
#
# Handles multipart forms (in particular, forms that involve file uploads).
# Reads query parameters in the @params field, and cookies into @cookies.
def initialize_query
@cookies = CGI::Cookie::parse(env_table['HTTP_COOKIE'] || env_table['COOKIE'])
# Fix some strange request environments.
if method = env_table['REQUEST_METHOD']
method = method.to_s.downcase.intern
else
method = :get
end
# POST assumes missing Content-Type is application/x-www-form-urlencoded.
content_type = env_table['CONTENT_TYPE']
if content_type.blank? && method == :post
content_type = 'application/x-www-form-urlencoded'
end
# Force content length to zero if missing.
content_length = env_table['CONTENT_LENGTH'].to_i
# Set multipart to false by default.
@multipart = false
# POST and PUT may have params in entity body. If content type is
# missing for POST, assume urlencoded. If content type is missing
# for PUT, don't assume anything and don't parse the parameters:
# it's likely binary data.
#
# The other HTTP methods have their params in the query string.
if method == :post || method == :put
if boundary = extract_multipart_form_boundary(content_type)
@multipart = true
@params = read_multipart(boundary, content_length)
elsif content_type.blank? || content_type !~ %r{application/x-www-form-urlencoded}i
read_params(method, content_length)
@params = {}
end
end
@params ||= CGI.parse(read_params(method, content_length))
end
private
unless defined?(MULTIPART_FORM_BOUNDARY_RE)
MULTIPART_FORM_BOUNDARY_RE = %r|\Amultipart/form-data.*boundary=\"?([^\";,]+)\"?|n #"
end
def extract_multipart_form_boundary(content_type)
MULTIPART_FORM_BOUNDARY_RE.match(content_type).to_a.pop
end
if defined? MOD_RUBY
def read_query
Apache::request.args || ''
end
else
def read_query
# fixes CGI querystring parsing for lighttpd
env_qs = env_table['QUERY_STRING']
if env_qs.blank? && !(uri = env_table['REQUEST_URI']).blank?
uri.split('?', 2)[1] || ''
else
env_qs || ''
end
end
end
def read_body(content_length)
stdinput.binmode if stdinput.respond_to?(:binmode)
content = stdinput.read(content_length) || ''
# Fix for Safari Ajax postings that always append \000
content.chop! if content[-1] == 0
content.gsub!(/&_=$/, '')
env_table['RAW_POST_DATA'] = content.freeze
end
def read_params(method, content_length)
case method
when :get
read_query
when :post, :put
read_body(content_length)
when :cmd
read_from_cmdline
else # :head, :delete, :options, :trace, :connect
read_query
end
end
end # module QueryExtension
end
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