Class: Utopia::Middleware::Localization
- Inherits:
-
Object
- Object
- Utopia::Middleware::Localization
- Defined in:
- lib/utopia/middleware/localization.rb,
lib/utopia/middleware/localization/name.rb
Defined Under Namespace
Modules: Name
Instance Attribute Summary collapse
-
#all_locales ⇒ Object
readonly
Returns the value of attribute all_locales.
-
#default_locale ⇒ Object
readonly
Returns the value of attribute default_locale.
Instance Method Summary collapse
- #call(env) ⇒ Object
- #check_resource(resource_name, resource_locale, env) ⇒ Object
-
#initialize(app, options = {}) ⇒ Localization
constructor
A new instance of Localization.
- #named_locale(resource_name) ⇒ Object
- #nonlocalized?(env) ⇒ Boolean
Constructor Details
#initialize(app, options = {}) ⇒ Localization
Returns a new instance of Localization.
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# File 'lib/utopia/middleware/localization.rb', line 28 def initialize(app, = {}) @app = app @default_locale = [:default] || "en" @all_locales = [:all] || ["en"] @nonlocalized = [:nonlocalized] || [] end |
Instance Attribute Details
#all_locales ⇒ Object (readonly)
Returns the value of attribute all_locales.
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# File 'lib/utopia/middleware/localization.rb', line 45 def all_locales @all_locales end |
#default_locale ⇒ Object (readonly)
Returns the value of attribute default_locale.
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# File 'lib/utopia/middleware/localization.rb', line 46 def default_locale @default_locale end |
Instance Method Details
#call(env) ⇒ Object
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# File 'lib/utopia/middleware/localization.rb', line 75 def call(env) # Check for a non-localized resource. if nonlocalized?(env) return @app.call(env) end # Otherwise, we need to check if the resource has been localized based on the request and referer parameters. path = Path.create(env["PATH_INFO"]) env["utopia.localization"] = self referer_locale = named_locale(env['HTTP_REFERER']) request_locale = named_locale(path.basename) resource_name = Name.nonlocalized(path.basename, @all_locales).join(".") response = nil if request_locale env["utopia.current_locale"] = request_locale resource_path, response = check_resource(resource_name, request_locale, env) elsif referer_locale env["utopia.current_locale"] = referer_locale resource_path, response = check_resource(resource_name, referer_locale, env) end # If the previous checks failed, i.e. there was no request/referer locale # or the response was 404 (i.e. no localised resource), we check for the # @default_locale if response == nil || response[0] >= 400 env["utopia.current_locale"] = @default_locale resource_path, response = check_resource(resource_name, @default_locale, env) end # If the response is 2xx, we have a localised resource if response[0] < 300 # If the original request was the same as the localized request, if path.basename == resource_path.basename # The resource URI is correct. return @app.call(env) else # Redirect to the correct resource URI. return [307, {"Location" => resource_path.to_s}, []] end elsif response[0] < 400 # We have encountered a redirect while accessing the localized resource return response else # A localized resource was not found, return the unlocalised resource path, if path.basename == resource_name return @app.call(env) else return [307, {"Location" => (path.dirname + resource_name).to_s}, []] end end end |
#check_resource(resource_name, resource_locale, env) ⇒ Object
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# File 'lib/utopia/middleware/localization.rb', line 48 def check_resource(resource_name, resource_locale, env) localized_name = Name.localized(resource_name, resource_locale, @all_locales).join(".") localized_path = Path.create(env["PATH_INFO"]).dirname + localized_name localization_probe = env.dup localization_probe["REQUEST_METHOD"] = "HEAD" localization_probe["PATH_INFO"] = localized_path.to_s # Find out if a resource exists for the requested localization return [localized_path, @app.call(localization_probe)] end |
#named_locale(resource_name) ⇒ Object
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# File 'lib/utopia/middleware/localization.rb', line 37 def named_locale(resource_name) if resource_name Name.extract_locale(resource_name, @all_locales) else nil end end |
#nonlocalized?(env) ⇒ Boolean
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# File 'lib/utopia/middleware/localization.rb', line 60 def nonlocalized?(env) @nonlocalized.each do |pattern| case pattern when String return true if pattern == env["PATH_INFO"] when Regexp return true if pattern.match(env["PATH_INFO"]) when pattern.respond_to?(:call) return true if pattern.call(env) end end return false end |