diff options
Diffstat (limited to 'activeresource/lib/active_resource/connection.rb')
| -rw-r--r-- | activeresource/lib/active_resource/connection.rb | 99 |
1 files changed, 84 insertions, 15 deletions
diff --git a/activeresource/lib/active_resource/connection.rb b/activeresource/lib/active_resource/connection.rb index 9d551f04e7..193be89a82 100644 --- a/activeresource/lib/active_resource/connection.rb +++ b/activeresource/lib/active_resource/connection.rb @@ -17,7 +17,7 @@ module ActiveResource :head => 'Accept' } - attr_reader :site, :user, :password, :timeout, :proxy, :ssl_options + attr_reader :site, :user, :password, :auth_type, :timeout, :proxy, :ssl_options attr_accessor :format class << self @@ -31,20 +31,21 @@ module ActiveResource def initialize(site, format = ActiveResource::Formats::XmlFormat) raise ArgumentError, 'Missing site URI' unless site @user = @password = nil + @uri_parser = URI.const_defined?(:Parser) ? URI::Parser.new : URI self.site = site self.format = format end # Set URI for remote service. def site=(site) - @site = site.is_a?(URI) ? site : URI.parse(site) - @user = URI.decode(@site.user) if @site.user - @password = URI.decode(@site.password) if @site.password + @site = site.is_a?(URI) ? site : @uri_parser.parse(site) + @user = @uri_parser.unescape(@site.user) if @site.user + @password = @uri_parser.unescape(@site.password) if @site.password end # Set the proxy for remote service. def proxy=(proxy) - @proxy = proxy.is_a?(URI) ? proxy : URI.parse(proxy) + @proxy = proxy.is_a?(URI) ? proxy : @uri_parser.parse(proxy) end # Sets the user for remote service. @@ -57,6 +58,11 @@ module ActiveResource @password = password end + # Sets the auth type for remote service. + def auth_type=(auth_type) + @auth_type = legitimize_auth_type(auth_type) + end + # Sets the number of seconds after which HTTP requests to the remote service should time out. def timeout=(timeout) @timeout = timeout @@ -70,31 +76,31 @@ module ActiveResource # Executes a GET request. # Used to get (find) resources. def get(path, headers = {}) - format.decode(request(:get, path, build_request_headers(headers, :get)).body) + with_auth { format.decode(request(:get, path, build_request_headers(headers, :get, self.site.merge(path))).body) } end # Executes a DELETE request (see HTTP protocol documentation if unfamiliar). # Used to delete resources. def delete(path, headers = {}) - request(:delete, path, build_request_headers(headers, :delete)) + with_auth { request(:delete, path, build_request_headers(headers, :delete, self.site.merge(path))) } end # Executes a PUT request (see HTTP protocol documentation if unfamiliar). # Used to update resources. def put(path, body = '', headers = {}) - request(:put, path, body.to_s, build_request_headers(headers, :put)) + with_auth { request(:put, path, body.to_s, build_request_headers(headers, :put, self.site.merge(path))) } end # Executes a POST request. # Used to create new resources. def post(path, body = '', headers = {}) - request(:post, path, body.to_s, build_request_headers(headers, :post)) + with_auth { request(:post, path, body.to_s, build_request_headers(headers, :post, self.site.merge(path))) } end # Executes a HEAD request. # Used to obtain meta-information about resources, such as whether they exist and their size (via response headers). def head(path, headers = {}) - request(:head, path, build_request_headers(headers, :head)) + with_auth { request(:head, path, build_request_headers(headers, :head, self.site.merge(path))) } end @@ -198,13 +204,70 @@ module ActiveResource end # Builds headers for request to remote service. - def build_request_headers(headers, http_method=nil) - authorization_header.update(default_header).update(http_format_header(http_method)).update(headers) + def build_request_headers(headers, http_method, uri) + authorization_header(http_method, uri).update(default_header).update(http_format_header(http_method)).update(headers) + end + + def response_auth_header + @response_auth_header ||= "" + end + + def with_auth + retried ||= false + yield + rescue UnauthorizedAccess => e + raise if retried || auth_type != :digest + @response_auth_header = e.response['WWW-Authenticate'] + retried = true + retry + end + + def authorization_header(http_method, uri) + if @user || @password + if auth_type == :digest + { 'Authorization' => digest_auth_header(http_method, uri) } + else + { 'Authorization' => 'Basic ' + ["#{@user}:#{@password}"].pack('m').delete("\r\n") } + end + else + {} + end end - # Sets authorization header - def authorization_header - (@user || @password ? { 'Authorization' => 'Basic ' + ["#{@user}:#{ @password}"].pack('m').delete("\r\n") } : {}) + def digest_auth_header(http_method, uri) + params = extract_params_from_response + + ha1 = Digest::MD5.hexdigest("#{@user}:#{params['realm']}:#{@password}") + ha2 = Digest::MD5.hexdigest("#{http_method.to_s.upcase}:#{uri.path}") + + params.merge!('cnonce' => client_nonce) + request_digest = Digest::MD5.hexdigest([ha1, params['nonce'], "0", params['cnonce'], params['qop'], ha2].join(":")) + "Digest #{auth_attributes_for(uri, request_digest, params)}" + end + + def client_nonce + Digest::MD5.hexdigest("%x" % (Time.now.to_i + rand(65535))) + end + + def extract_params_from_response + params = {} + if response_auth_header =~ /^(\w+) (.*)/ + $2.gsub(/(\w+)="(.*?)"/) { params[$1] = $2 } + end + params + end + + def auth_attributes_for(uri, request_digest, params) + [ + %Q(username="#{@user}"), + %Q(realm="#{params['realm']}"), + %Q(qop="#{params['qop']}"), + %Q(uri="#{uri.path}"), + %Q(nonce="#{params['nonce']}"), + %Q(nc="0"), + %Q(cnonce="#{params['cnonce']}"), + %Q(opaque="#{params['opaque']}"), + %Q(response="#{request_digest}")].join(", ") end def http_format_header(http_method) @@ -214,5 +277,11 @@ module ActiveResource def logger #:nodoc: Base.logger end + + def legitimize_auth_type(auth_type) + return :basic if auth_type.nil? + auth_type = auth_type.to_sym + [:basic, :digest].include?(auth_type) ? auth_type : :basic + end end end |