Add onetime signer support, and ruby sdk client helper

Gemfile

@@ -1,5 +1,5 @@
 source 'https://rubygems.org'
 gemspec
 
-# gem 'stellar-base', path: "~/src/stellar/ruby-stellar-base"
+# gem 'stellar-base', path: "~/prj/stellar/ruby-stellar-base"
 # gem 'xdr', path: "~/src/stellar/ruby-xdr"#

examples/onetime_signer.rb

@@ -0,0 +1,12 @@
+account :scott
+puts "scott: #{get_account(:scott).address}"
+create_via_friendbot :scott
+wait
+
+pp get_account_info(:scott).signers
+
+add_onetime_signer :scott, "hello world", 1
+
+wait
+
+pp get_account_info(:scott).signers

lib/stellar_core_commander.rb

@@ -1,6 +1,7 @@
 require "stellar_core_commander/version"
 require "active_support/all"
 require "stellar-base"
+require "stellar-sdk"
 require "contracts"
 require "faraday"
 require "faraday_middleware"

lib/stellar_core_commander/concerns/named_objects.rb

@@ -12,6 +12,7 @@ def add_named(name, object)
           raise ArgumentError, "#{name} is already registered"
         end
         @named[name] = object
+        object
       end
 
       Contract Symbol => Any

lib/stellar_core_commander/concerns/tracks_accounts.rb

@@ -25,7 +25,6 @@ def get_account(name)
         end
       end
 
-
     end
   end
 end

lib/stellar_core_commander/horizon_commander.rb

@@ -14,9 +14,9 @@ def initialize(endpoint)
       @open = []
       @sequences = SequenceTracker.new(self)
       @conn = Faraday.new(:url => @endpoint) do |faraday|
+        faraday.request :retry, max: 2
         faraday.use FaradayMiddleware::FollowRedirects
         faraday.adapter :typhoeus
-        faraday.request :retry, max: 2
       end
 
       @transaction_builder = TransactionBuilder.new(self)
@@ -97,8 +97,9 @@ def self.recipe_steps(names)
       :clear_flags,
       :require_trust_auth,
       :add_signer,
-      :set_master_signer_weight,
       :remove_signer,
+      :add_onetime_signer,
+      :set_master_signer_weight,
       :set_thresholds,
       :set_inflation_dest,
       :set_home_domain,
@@ -119,6 +120,22 @@ def sequence_for(account)
       body["sequence"].to_i
     end
 
+    Contract Symbol => Any
+    def create_via_friendbot(account)
+      account = get_account account
+      @open << @conn.get("friendbot", addr: account.address)
+    end
+
+    Contract None => Stellar::Client
+    def sdk_client 
+      @client ||= Stellar::Client.new(horizon: @endpoint)
+    end
+
+    Contract Symbol => Hyperclient::Resource
+    def get_account_info(name)
+      sdk_account = Stellar::Account.new(get_account(name))
+      sdk_client.account_info(sdk_account)
+    end
 
     private
 
@@ -129,12 +146,6 @@ def submit_transaction(envelope, &after_confirmation)
       @open << @conn.post("transactions", tx: b64)
     end
 
-    Contract Symbol => Any
-    def create_via_friendbot(account)
-      account = get_account account
-      @open << @conn.get("friendbot", addr: account.address)
-    end
-
     Contract Exception => Any
     def crash_recipe(e)
       puts

lib/stellar_core_commander/transaction_builder.rb

@@ -245,6 +245,14 @@ def remove_signer(account, key)
       add_signer account, key, 0
     end
 
+    Contract Symbol, String, Num => Any
+    def add_onetime_signer(account, preimage, weight)
+      set_options account, signer: Stellar::Signer.new({
+        key:    Stellar::SignerKey.onetime_signer(preimage),
+        weight: weight
+      })
+    end
+
     Contract(Symbol, MasterWeightByte => Any)
     def set_master_signer_weight(account, weight)
       set_options account, master_weight: weight

lib/stellar_core_commander/transactor.rb

@@ -139,11 +139,15 @@ def payment(*args, &block)
     # @see StellarCoreCommander::TransactionBuilder#add_signer
     recipe_step :add_signer
 
+    # @see StellarCoreCommander::TransactionBuilder#remove_signer
+    recipe_step :remove_signer
+
+    # @see StellarCoreCommander::TransactionBuilder#add_onetime_signer
+    recipe_step :add_onetime_signer
+
     # @see StellarCoreCommander::TransactionBuilder#set_master_signer_weight
     recipe_step :set_master_signer_weight
 
-    # @see StellarCoreCommander::TransactionBuilder#remove_signer
-    recipe_step :remove_signer
 
     # @see StellarCoreCommander::TransactionBuilder#set_thresholds
     recipe_step :set_thresholds

stellar_core_commander.gemspec

@@ -17,14 +17,15 @@ Gem::Specification.new do |spec|
   spec.test_files    = spec.files.grep(%r{^(test|spec|features)/})
   spec.require_paths = ["lib"]
 
-  spec.add_dependency "stellar-base", ">= 0.12.0"
+  spec.add_dependency "stellar-base", ">= 0.16.0"
+  spec.add_dependency "stellar-sdk", ">= 0.5.0"
   spec.add_dependency "slop", "~> 3.6.0"
   spec.add_dependency "faraday", "~> 0.9.1"
   spec.add_dependency "faraday_middleware", "~> 0.9.1"
   spec.add_dependency "pg", "~> 0.18.1"
   spec.add_dependency "sequel", "~> 5.5.0"
-  spec.add_dependency "activesupport", ">= 4.0.0"
-  spec.add_dependency "contracts", "~> 0.9"
+  spec.add_dependency "activesupport", ">= 5.2.0"
+  spec.add_dependency "contracts", "~> 0.16"
   spec.add_dependency "typhoeus", "~> 0.8.0"
   spec.add_dependency "pry", "~> 0.11.3"