(Fixes issue 454) First run of QRCode Extension. Nothing fancy, but if enabled, gives you some URLs upon start up with default hooking URLs. Advanced hooking and persistance modules will make this sexier

extensions/qrcode/config.yaml

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+#
+#   Copyright 2011 Wade Alcorn wade@bindshell.net
+#
+#   Licensed under the Apache License, Version 2.0 (the "License");
+#   you may not use this file except in compliance with the License.
+#   You may obtain a copy of the License at
+#
+#       http://www.apache.org/licenses/LICENSE-2.0
+#
+#   Unless required by applicable law or agreed to in writing, software
+#   distributed under the License is distributed on an "AS IS" BASIS,
+#   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#   See the License for the specific language governing permissions and
+#   limitations under the License.
+#
+beef:
+    extension:
+        qrcode:
+            name: 'QR Code Generator'
+            enable: false 
+            authors: ["xntrik"]
+            target: ["/demos/basic.html"]
+            qrsize: "300x300"
+

extensions/qrcode/extension.rb

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+#
+#   Copyright 2011 Wade Alcorn wade@bindshell.net
+#
+#   Licensed under the Apache License, Version 2.0 (the "License");
+#   you may not use this file except in compliance with the License.
+#   You may obtain a copy of the License at
+#
+#       http://www.apache.org/licenses/LICENSE-2.0
+#
+#   Unless required by applicable law or agreed to in writing, software
+#   distributed under the License is distributed on an "AS IS" BASIS,
+#   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#   See the License for the specific language governing permissions and
+#   limitations under the License.
+#
+module BeEF
+module Extension
+module Qrcode
+  
+  extend BeEF::API::Extension
+  
+  @short_name = 'qrcode'
+  @full_name = 'QR Code Generator'
+  @description = 'This extension prints out a link to a QR Code which can be used to hook browsers into BeEF'
+
+end
+end
+end
+
+require 'extensions/qrcode/qrcode'

extensions/qrcode/qrcode.rb

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+#
+#   Copyright 2011 Wade Alcorn wade@bindshell.net
+#
+#   Licensed under the Apache License, Version 2.0 (the "License");
+#   you may not use this file except in compliance with the License.
+#   You may obtain a copy of the License at
+#
+#       http://www.apache.org/licenses/LICENSE-2.0
+#
+#   Unless required by applicable law or agreed to in writing, software
+#   distributed under the License is distributed on an "AS IS" BASIS,
+#   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#   See the License for the specific language governing permissions and
+#   limitations under the License.
+#
+module BeEF
+module Extension
+module Qrcode 
+
+  module QrcodeGenerator
+
+    BeEF::API::Registrar.instance.register(BeEF::Extension::Qrcode::QrcodeGenerator, BeEF::API::Server, 'pre_http_start')
+    
+    def self.pre_http_start(http_hook_server)
+      require 'uri'
+      
+      configuration = BeEF::Core::Configuration.instance
+      BeEF::Extension::Console::Banners.interfaces.each do |int|
+        print_success "QRCode images available for interface: #{int}"
+        data = ""
+        configuration.get("beef.extension.qrcode.target").each do |target|
+          url = "http://#{int}:#{configuration.get("beef.http.port")}#{target}"
+          url = URI.escape(url,Regexp.new("[^#{URI::PATTERN::UNRESERVED}]"))
+          data += "https://chart.googleapis.com/chart?cht=qr&chs=#{configuration.get("beef.extension.qrcode.qrsize")}&chl=#{url}\n"
+        end
+        print_more data
+      end
+    end  
+    
+  end
+
+
+end
+end
+end