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# -*- coding: utf-8 -*-
#
# Copyright (C) 2012 Kouhei Sutou <kou@clear-code.com>
# Copyright (C) 2002-2008 Masao Mutoh
#
# Original: Ruby-GetText-Package-1.92.0.
# License: Ruby's or LGPL
#
# This library is free software: you can redistribute it and/or modify
# it under the terms of the GNU Lesser General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This library is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
require "locale/driver"
module Locale
# Locale::Driver module for CGI.
# Detect the user locales and the charset from CGI parameters.
# This is a low-level class. Application shouldn't use this directly.
module Driver
module CGI
$stderr.puts self.name + " is loaded." if $DEBUG
module_function
# Gets required locales from CGI parameters. (Based on RFC2616)
#
# Returns: An Array of Locale::Tag's subclasses
# (QUERY_STRING "lang" > COOKIE "lang" > HTTP_ACCEPT_LANGUAGE > "en")
#
def locales
req = Thread.current[:current_request]
return nil unless req
locales = []
# QUERY_STRING "lang"
if langs = req[:query_langs]
langs.each do |lang|
locales << Locale::Tag.parse(lang)
end
end
unless locales.size > 0
# COOKIE "lang"
if langs = req[:cookie_langs]
langs.each do |lang|
locales << Locale::Tag.parse(lang) if lang.size > 0
end
end
end
unless locales.size > 0
# HTTP_ACCEPT_LANGUAGE
if lang = req[:accept_language] and lang.size > 0
# 10.0 is for ruby-1.8.6 which have the bug of str.to_f.
# Normally, this should be 1.0.
locales += lang.gsub(/\s/, "").split(/,/).map{|v| v.split(";q=")}.map{|j| [j[0], j[1] ? j[1].to_f : 10.0]}.sort{|a,b| -(a[1] <=> b[1])}.map{|v| Locale::Tag.parse(v[0])}
end
end
locales.size > 0 ? Locale::TagList.new(locales.uniq) : nil
end
# Gets the charset from CGI parameters. (Based on RFC2616)
# * Returns: the charset (HTTP_ACCEPT_CHARSET or nil).
def charset
req = Thread.current[:current_request]
return nil unless req
charsets = req[:accept_charset]
if charsets and charsets.size > 0
num = charsets.index(',')
charset = num ? charsets[0, num] : charsets
charset = nil if charset == "*"
else
charset = nil
end
charset
end
# Set a request.
#
# * query_langs: An Array of QUERY_STRING value "lang".
# * cookie_langs: An Array of cookie value "lang".
# * accept_language: The value of HTTP_ACCEPT_LANGUAGE
# * accept_charset: The value of HTTP_ACCEPT_CHARSET
def set_request(query_langs, cookie_langs, accept_language, accept_charset)
Locale.clear
Thread.current[:current_request] = {
:query_langs => query_langs,
:cookie_langs => cookie_langs,
:accept_language => accept_language,
:accept_charset => accept_charset
}
self
end
# Clear the current request.
def clear_current_request
Thread.current[:current_request] = nil
end
end
MODULES[:cgi] = CGI
end
module_function
# Sets a request values for lang/charset.
#
# * query_langs: An Array of QUERY_STRING value "lang".
# * cookie_langs: An Array of cookie value "lang".
# * accept_language: The value of HTTP_ACCEPT_LANGUAGE
# * accept_charset: The value of HTTP_ACCEPT_CHARSET
def set_request(query_langs, cookie_langs, accept_language, accept_charset)
driver_module.set_request(query_langs, cookie_langs, accept_language, accept_charset)
self
end
# Sets a CGI object. This is the convenient function of set_request().
#
# This method is appeared when Locale.init(:driver => :cgi) is called.
#
# * cgi: CGI object
# * Returns: self
def set_cgi(cgi)
set_request(cgi.params["lang"], cgi.cookies["lang"],
cgi.accept_language, cgi.accept_charset)
self
end
# Sets a CGI object.This is the convenient function of set_request().
#
# This method is appeared when Locale.init(:driver => :cgi) is called.
#
# * cgi: CGI object
# * Returns: cgi
def cgi=(cgi)
set_cgi(cgi)
cgi
end
end
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