Refactor Jboss mixin

Use send_request_cgi and vars_get
rand_text_alpha -> Rex::Text.rand_text_alpha

Author: us3r777

lib/msf/http/jboss/base.rb

@@ -73,11 +73,16 @@ def auto_target(available_targets)
   end
 
   def query_serverinfo
-    path = normalize_uri(target_uri.path.to_s, '/HtmlAdaptor?action=inspectMBean&name=jboss.system:type=ServerInfo')
-    res = send_request_raw(
+    path = normalize_uri(target_uri.path.to_s, 'HtmlAdaptor')
+    res = send_request_cgi(
       {
         'uri'    => path,
-        'method' => http_verb
+        'method' => http_verb,
+        'vars_get' => 
+        {
+          'action' => 'inspectMBean',
+          'name' => 'jboss.system:type=ServerInfo'
+        }
       })
 
     unless res && res.code == 200

lib/msf/http/jboss/deployment_file_repository_scripts.rb

@@ -10,11 +10,11 @@ module Msf::HTTP::JBoss::DeploymentFileRepositoryScripts
   # @param stager_jsp [String] The name name of the jsp stager.
   # @return [String] The JSP head stager.
   def head_stager_jsp(stager_base, stager_jsp_name)
-    content_var = rand_text_alpha(8+rand(8))
-    file_path_var = rand_text_alpha(8+rand(8))
-    jboss_home_var = rand_text_alpha(8+rand(8))
-    fos_var = rand_text_alpha(8+rand(8))
-    bw_var = rand_text_alpha(8+rand(8))
+    content_var = Rex::Text.rand_text_alpha(8+rand(8))
+    file_path_var = Rex::Text.rand_text_alpha(8+rand(8))
+    jboss_home_var = Rex::Text.rand_text_alpha(8+rand(8))
+    fos_var = Rex::Text.rand_text_alpha(8+rand(8))
+    bw_var = Rex::Text.rand_text_alpha(8+rand(8))
     head_stager_jsp_code = <<-EOT
 <%@page import="java.io.*,
   java.util.*"