Add help command to CLI

Resolves #25

Author: rastating

data/json/commands.json

@@ -0,0 +1,72 @@
+{
+  "data": [
+    {
+      "cmd": "back",
+      "desc": "Change the context of the session back to it was before loading the current module."
+    },
+    {
+      "cmd": "check",
+      "desc": "Check if the currently loaded module can be used against the specified target."
+    },
+    {
+      "cmd": "clear",
+      "desc": "Clear the screen."
+    },
+    {
+      "cmd": "gset [option] [value]",
+      "desc": "Set the [value] of [option] globally, so it is used by the current and future modules."
+    },
+    {
+      "cmd": "gunset [option]",
+      "desc": "Unset a global [option] set with the gset command."
+    },
+    {
+      "cmd": "help",
+      "desc": "Shows this information."
+    },
+    {
+      "cmd": "info",
+      "desc": "Display information about the currently loaded module."
+    },
+    {
+      "cmd": "quit",
+      "desc": "Exit the WordPress Exploit Framework prompt."
+    },
+    {
+      "cmd": "run",
+      "desc": "Run the currently loaded module."
+    },
+    {
+      "cmd": "set [option] [value]",
+      "desc": "Set the [value] of [option] for the currently loaded module."
+    },
+    {
+      "cmd": "search [keywords]",
+      "desc": "Search for modules that contain one or more of the specified [keywords]"
+    },
+    {
+      "cmd": "show advanced",
+      "desc": "Show the advanced options of the currently loaded module."
+    },
+    {
+      "cmd": "show auxiliary",
+      "desc": "Show the list of available auxiliary modules."
+    },
+    {
+      "cmd": "show exploits",
+      "desc": "Show the list of available exploits."
+    },
+    {
+      "cmd": "show options",
+      "desc": "Show the basic options of the currently loaded module."
+    },
+    {
+      "cmd": "unset [option]",
+      "desc": "Unset an [option] set with the set command."
+    },
+    {
+      "cmd": "use [module_path]",
+      "desc": "Loads the specified module into the current context."
+    }
+  ]
+}

lib/cli/console.rb

@@ -26,7 +26,7 @@ def commands_without_output
 
     def permitted_commands
       %w(use back set show quit run unset check info gset gunset search clear
-         reload)
+         reload help)
     end
 
     def initialize

lib/cli/help.rb

@@ -52,6 +52,15 @@ def show_advanced_options
       end
     end
 
+    def help
+      commands_file = Wpxf::DataFile.new('json', 'commands.json')
+      data = JSON.parse(commands_file.content)['data']
+      data.unshift('cmd' => 'Command', 'desc' => 'Description')
+      indent_cursor 2 do
+        print_table data
+      end
+    end
+
     def show_exploits
       results = search_modules(['exploit/'])
       print_good "#{results.length} Exploits"