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module ActionController
# Rewrites URLs for Base.redirect_to and Base.url_for in the controller.
class UrlRewriter #:nodoc:
RESERVED_OPTIONS = [:anchor, :params, :only_path, :host, :protocol, :trailing_slash, :skip_relative_url_root]
def initialize(request, parameters)
@request, @parameters = request, parameters
end
def rewrite(options = {})
rewrite_url(rewrite_path(options), options)
end
def to_str
"#{@request.protocol}, #{@request.host_with_port}, #{@request.path}, #{@parameters[:controller]}, #{@parameters[:action]}, #{@request.parameters.inspect}"
end
alias_method :to_s, :to_str
private
def rewrite_url(path, options)
rewritten_url = ""
unless options[:only_path]
rewritten_url << (options[:protocol] || @request.protocol)
rewritten_url << (options[:host] || @request.host_with_port)
end
rewritten_url << @request.relative_url_root.to_s unless options[:skip_relative_url_root]
rewritten_url << path
rewritten_url << '/' if options[:trailing_slash]
rewritten_url << "##{options[:anchor]}" if options[:anchor]
rewritten_url
end
def rewrite_path(options)
options = options.symbolize_keys
options.update(options[:params].symbolize_keys) if options[:params]
if (overwrite = options.delete(:overwrite_params))
options.update(@parameters.symbolize_keys)
options.update(overwrite)
end
RESERVED_OPTIONS.each {|k| options.delete k}
# Generates the query string, too
Routing::Routes.generate(options, @request.parameters)
end
end
end
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