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module Innate
module Helper
module Redirect
def respond(body, status = 200, header = {})
response.write body
response.status = status
header['Content-Type'] ||= Response.mime_type
header.each{|key, value| response[key] = value }
throw(:respond, response)
end
def respond!(body, status = 200, header = {})
header['Content-Type'] ||= Response.mime_type
throw(:respond, Response.new(body, status, header))
end
# +target+ should be anything responding to #to_s.
# To check or modify the URI the redirect will go to you may pass a
# block, the result value of the block is ignored:
#
# redirect("/"){|uri| uri.scheme = 'http' }
# redirect("/"){|uri| uri.host = 'secure.com' if uri.scheme =~ /s/ }
#
# +options+ may contain:
#
# :scheme => "http" | "https" | "ftp" | ...
# :host => "localhost" | "foo.com" | "123.123.123.123" | ...
# :port => 7000 | "80" | 80 | ...
#
# :status => 302 | 300 | 303 | ...
# :body => "This is a redirect, hold on while we teleport" | ...
#
# :raw! => true | false | nil | ...
#
# Note that all options are optional and you may just pass a +target+.
def redirect(target, options = {})
target = target.to_s
case target
when /^http/, /^\//
uri = URI(target)
else
uri = URI("/#{target}")
end
uri.scheme ||= options[:scheme] || request.scheme
uri.host ||= options[:host] || request.host
uri.port ||= options[:port] || request.port
uri = URI(uri.to_s)
yield(uri) if block_given?
raw_redirect(uri, options)
end
def raw_redirect(target, options = {}, &block)
header = response.header.merge('Location' => target.to_s)
status = options[:status] || 302
body = options[:body] || redirect_body(target)
Log.debug "Redirect to: #{target}"
throw(:redirect, Response.new(body, status, header, &block))
end
def redirect_body(target)
"You are being redirected, please follow this link to: " +
"<a href='#{target}'>#{h target}</a>!"
end
def redirect_referrer(fallback = Innate.options.prefix)
if (referer = request.env['HTTP_REFERER']) && (url = request.url)
referer_uri, request_uri = URI(referer), URI(url)
redirect(referer) unless referer_uri == request_uri
end
redirect(fallback)
end
alias redirect_referer redirect_referrer
end
end
end
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