Added token_for method

README.md

@@ -72,6 +72,16 @@ Gets message history of the channel:
 
 	client.history('test_channel')
 
+### JS Client token generation
+
+Generates token for JS client:
+
+  client.token_for('testuser', '123123')
+
+Where `123123` is UNIX timestamp. You can also add user info as valid json string as third parameter:
+
+  client.token_for('testuser', '123123', "{}")
+
 ### Other API
 
 Other API methods, like projects and channels management are unavailable now.

lib/centrifuge/builder.rb

@@ -10,7 +10,7 @@ def initialize(method, data, client)
 
     def process
       body = { data: json(method, data) }
-      body.merge!(sign: sign(body[:data]))
+      body.merge!(sign: client.sign(body[:data]))
       Centrifuge::Request.new(client.client, 'POST', client.url, nil, body).send
     end
 
@@ -19,18 +19,5 @@ def process
     def json(method, params)
       MultiJson.dump({ method: method, params: params })
     end
-
-    def sign(body)
-      dig = OpenSSL::Digest.new('md5')
-      OpenSSL::HMAC.hexdigest(dig, secret, "#{project_id}#{body}")
-    end
-
-    def project_id
-      client.project_id
-    end
-
-    def secret
-      client.secret
-    end
   end
 end

lib/centrifuge/client.rb

@@ -59,6 +59,15 @@ def history(channel)
       Centrifuge::Builder.new('history', { channel: channel }, self).process
     end
 
+    def token_for(user, timestamp, user_info = "")
+      sign("#{user}#{timestamp}#{user_info}")
+    end
+
+    def sign(body)
+      dig = OpenSSL::Digest.new('md5')
+      OpenSSL::HMAC.hexdigest(dig, secret, "#{project_id}#{body}")
+    end
+
     def client
       @client ||= begin
         HTTPClient.new.tap do |http|

lib/centrifuge/version.rb

@@ -1,3 +1,3 @@
 module Centrifuge
-  VERSION = "0.0.1"
+  VERSION = "0.0.2"
 end