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# Copyright (c) 2004, 2005, 2006 Tanaka Akira. All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are met:
#
# 1. Redistributions of source code must retain the above copyright notice, this
# list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright notice,
# this list of conditions and the following disclaimer in the documentation
# and/or other materials provided with the distribution.
# 3. The name of the author may not be used to endorse or promote products
# derived from this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
# WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
# MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
# EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
# OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
# IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
# OF SUCH DAMAGE.
class WebApp
# :stopdoc:
class Header
def Header.capitalize_field_name(field_name)
field_name.gsub(/[A-Za-z]+/) {|s| s.capitalize }
end
def initialize
@fields = []
end
def freeze
@fields.freeze
super
end
def dup
result = Header.new
@fields.each {|_, k, v|
result.add(k, v)
}
result
end
def clear
@fields.clear
end
def remove(field_name)
k1 = field_name.downcase
@fields.reject! {|k2, _, _| k1 == k2 }
nil
end
def add(field_name, field_body)
field_name = WebApp.make_frozen_string(field_name)
field_body = WebApp.make_frozen_string(field_body)
@fields << [field_name.downcase.freeze, field_name, field_body]
end
def set(field_name, field_body)
field_name = WebApp.make_frozen_string(field_name)
remove(field_name)
add(field_name, field_body)
end
def has?(field_name)
@fields.assoc(field_name.downcase) != nil
end
def [](field_name)
k1 = field_name.downcase
@fields.each {|k2, field_name, field_body|
return field_body.dup if k1 == k2
}
nil
end
def lookup_all(field_name)
k1 = field_name.downcase
result = []
@fields.each {|k2, field_name, field_body|
result << field_body.dup if k1 == k2
}
result
end
def each
@fields.each {|_, field_name, field_body|
field_name = field_name.dup
field_body = field_body.dup
yield field_name, field_body
}
end
end
class Message
def initialize(header={}, body='')
@header_object = Header.new
case header
when Hash
header.each_pair {|k, v|
raise ArgumentError, "unexpected header field name: #{k.inspect}" unless k.respond_to? :to_str
raise ArgumentError, "unexpected header field body: #{v.inspect}" unless v.respond_to? :to_str
@header_object.add k.to_str, v.to_str
}
when Array
header.each {|k, v|
raise ArgumentError, "unexpected header field name: #{k.inspect}" unless k.respond_to? :to_str
raise ArgumentError, "unexpected header field body: #{v.inspect}" unless v.respond_to? :to_str
@header_object.add k.to_str, v.to_str
}
else
raise ArgumentError, "unexpected header argument: #{header.inspect}"
end
raise ArgumentError, "unexpected body: #{body.inspect}" unless body.respond_to? :to_str
@body_object = StringIO.new(body.to_str)
end
attr_reader :header_object, :body_object
def freeze
@header_object.freeze
@body_object.string.freeze
super
end
def output_header(out)
@header_object.each {|k, v|
out << "#{k}: #{v}\n"
}
end
def output_body(out)
out << @body_object.string
end
def output_message(out)
output_header(out)
out << "\n"
output_body(out)
end
end
class Request < Message
def initialize(request_line=nil, header={}, body='')
@request_line = request_line
super header, body
end
attr_reader :request_method,
:server_name, :server_port,
:script_name, :path_info,
:query_string,
:server_protocol,
:remote_addr, :content_type
attr_reader :scheme
def make_request_header_from_cgi_env(env)
env.each {|k, v|
next if /\AHTTP_/ !~ k
k = Header.capitalize_field_name($')
k.gsub!(/_/, '-')
@header_object.add k, v
}
@request_method = env['REQUEST_METHOD']
@server_name = env['SERVER_NAME'] || ''
@server_port = env['SERVER_PORT'].to_i
@script_name = env['SCRIPT_NAME'] || ''
@path_info = env['PATH_INFO'] || ''
@query_string = QueryString.primitive_new_for_raw_query_string(env['QUERY_STRING'] || '')
@server_protocol = env['SERVER_PROTOCOL'] || ''
@remote_addr = env['REMOTE_ADDR'] || ''
@content_type = env['CONTENT_TYPE'] || ''
@scheme = 'http'
# non-standard:
@request_uri = env['REQUEST_URI'] # Apache
if env['HTTPS'] and /on/i =~ env['HTTPS'] # Apache
@scheme = 'https'
end
end
end
class Response < Message
def initialize(status_line='200 OK', header={}, body='')
@status_line = status_line
super header, body
end
attr_accessor :status_line
def output_cgi_status_field(out)
out << "Status: #{self.status_line}\n"
end
end
# :startdoc:
end
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