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require 'active_support/core_ext/hash/except'
module ActionController
# Rewrites URLs for Base.redirect_to and Base.url_for in the controller.
module UrlRewriter #:nodoc:
RESERVED_OPTIONS = [:anchor, :params, :only_path, :host, :protocol, :port, :trailing_slash, :skip_relative_url_root]
# ROUTES TODO: Class method code smell
def self.rewrite(router, options)
handle_positional_args(options)
rewritten_url = ""
path_segments = options.delete(:_path_segments)
unless options[:only_path]
rewritten_url << (options[:protocol] || "http")
rewritten_url << "://" unless rewritten_url.match("://")
rewritten_url << rewrite_authentication(options)
raise "Missing host to link to! Please provide :host parameter or set default_url_options[:host]" unless options[:host]
rewritten_url << options[:host]
rewritten_url << ":#{options.delete(:port)}" if options.key?(:port)
end
path_options = options.except(*RESERVED_OPTIONS)
path_options = yield(path_options) if block_given?
path = router.generate(path_options, path_segments || {})
# ROUTES TODO: This can be called directly, so script_name should probably be set in the router
rewritten_url << (options[:trailing_slash] ? path.sub(/\?|\z/) { "/" + $& } : path)
rewritten_url << "##{Rack::Utils.escape(options[:anchor].to_param.to_s)}" if options[:anchor]
rewritten_url
end
protected
def self.handle_positional_args(options)
return unless args = options.delete(:_positional_args)
keys = options.delete(:_positional_keys)
keys -= options.keys if args.size < keys.size - 1 # take format into account
args = args.zip(keys).inject({}) do |h, (v, k)|
h[k] = v
h
end
# Tell url_for to skip default_url_options
options.merge!(args)
end
def self.rewrite_authentication(options)
if options[:user] && options[:password]
"#{Rack::Utils.escape(options.delete(:user))}:#{Rack::Utils.escape(options.delete(:password))}@"
else
""
end
end
end
end
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