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|
module ActionDispatch
module Journey # :nodoc:
class Route # :nodoc:
attr_reader :app, :path, :defaults, :name, :precedence
attr_reader :constraints
alias :conditions :constraints
module VerbMatchers
VERBS = %w{ DELETE GET HEAD OPTIONS LINK PATCH POST PUT TRACE UNLINK }
VERBS.each do |v|
class_eval <<-eoc
class #{v}
def self.verb; name.split("::").last; end
def self.call(req); req.#{v.downcase}?; end
end
eoc
end
class Unknown
attr_reader :verb
def initialize(verb)
@verb = verb
end
def call(request); @verb === request.request_method; end
end
class All
def self.call(_); true; end
def self.verb; ''; end
end
VERB_TO_CLASS = VERBS.each_with_object({ :all => All }) do |verb, hash|
klass = const_get verb
hash[verb] = klass
hash[verb.downcase] = klass
hash[verb.downcase.to_sym] = klass
end
end
def self.verb_matcher(verb)
VerbMatchers::VERB_TO_CLASS.fetch(verb) do
VerbMatchers::Unknown.new verb.to_s.dasherize.upcase
end
end
def self.build(name, app, path, constraints, required_defaults, defaults)
request_method_match = verb_matcher(constraints.delete(:request_method))
new name, app, path, constraints, required_defaults, defaults, request_method_match, 0
end
##
# +path+ is a path constraint.
# +constraints+ is a hash of constraints to be applied to this route.
def initialize(name, app, path, constraints, required_defaults, defaults, request_method_match, precedence)
@name = name
@app = app
@path = path
@request_method_match = request_method_match
@constraints = constraints
@defaults = defaults
@required_defaults = nil
@_required_defaults = required_defaults
@required_parts = nil
@parts = nil
@decorated_ast = nil
@precedence = precedence
@path_formatter = @path.build_formatter
end
def ast
@decorated_ast ||= begin
decorated_ast = path.ast
decorated_ast.find_all(&:terminal?).each { |n| n.memo = self }
decorated_ast
end
end
def requirements # :nodoc:
# needed for rails `rake routes`
@defaults.merge(path.requirements).delete_if { |_,v|
/.+?/ == v
}
end
def segments
path.names
end
def required_keys
required_parts + required_defaults.keys
end
def score(constraints)
required_keys = path.required_names
supplied_keys = constraints.map { |k,v| v && k.to_s }.compact
return -1 unless (required_keys - supplied_keys).empty?
score = (supplied_keys & path.names).length
score + (required_defaults.length * 2)
end
def parts
@parts ||= segments.map(&:to_sym)
end
alias :segment_keys :parts
def format(path_options)
@path_formatter.evaluate path_options
end
def required_parts
@required_parts ||= path.required_names.map(&:to_sym)
end
def required_default?(key)
@_required_defaults.include?(key)
end
def required_defaults
@required_defaults ||= @defaults.dup.delete_if do |k,_|
parts.include?(k) || !required_default?(k)
end
end
def glob?
!path.spec.grep(Nodes::Star).empty?
end
def dispatcher?
@app.dispatcher?
end
def matches?(request)
match_verb(request) &&
constraints.all? { |method, value|
case value
when Regexp, String
value === request.send(method).to_s
when Array
value.include?(request.send(method))
when TrueClass
request.send(method).present?
when FalseClass
request.send(method).blank?
else
value === request.send(method)
end
}
end
def ip
constraints[:ip] || //
end
def requires_matching_verb?
!@request_method_match.all? { |x| x == VerbMatchers::All }
end
def verb
%r[^#{verbs.join('|')}$]
end
private
def verbs
@request_method_match.map(&:verb)
end
def match_verb(request)
@request_method_match.any? { |m| m.call request }
end
end
end
end
|
