From 72a6619986086df4d8db876ca0424f6bb6671b1b Mon Sep 17 00:00:00 2001
From: Saku Ytti <saku@ytti.fi>
Date: Fri, 7 Jul 2017 14:05:48 +0300
Subject: add pre_login

---
 lib/oxidized/input/cli.rb    | 17 +++++++++++++++++
 lib/oxidized/input/ssh.rb    | 11 +++++++----
 lib/oxidized/input/telnet.rb |  3 +++
 3 files changed, 27 insertions(+), 4 deletions(-)

diff --git a/lib/oxidized/input/cli.rb b/lib/oxidized/input/cli.rb
index 660e173..fb39b81 100644
--- a/lib/oxidized/input/cli.rb
+++ b/lib/oxidized/input/cli.rb
@@ -4,12 +4,15 @@ module Oxidized
       attr_reader :node
 
       def initialize
+        @pre_login = []
         @post_login = []
         @pre_logout = []
         @username, @password, @exec = nil
       end
 
       def get
+        pre_login
+        login
         connect_cli
         d = node.model.get
         disconnect
@@ -19,6 +22,14 @@ module Oxidized
         raise
       end
 
+      def pre_login
+        Oxidized.logger.debug "lib/oxidized/input/cli.rb: Running pre_login commands at #{node.name}"
+        @pre_login.each do |command, block|
+          Oxidized.logger.debug "lib/oxidized/input/cli.rb: Running pre_login command: #{command.inspect}, block: #{block.inspect} at #{node.name}"
+          block ? block.call : (cmd command)
+        end
+      end
+
       def connect_cli
         Oxidized.logger.debug "lib/oxidized/input/cli.rb: Running post_login commands at #{node.name}"
         @post_login.each do |command, block|
@@ -32,6 +43,12 @@ module Oxidized
         @pre_logout.each { |command, block| block ? block.call : (cmd command, nil) }
       end
 
+      def pre_login _pre_login=nil, &block
+        unless @exec
+          @pre_login << [_pre_login, block]
+        end
+      end
+
       def post_login _post_login=nil, &block
         unless @exec
           @post_login << [_post_login, block]
diff --git a/lib/oxidized/input/ssh.rb b/lib/oxidized/input/ssh.rb
index 27e81e0..cca580b 100644
--- a/lib/oxidized/input/ssh.rb
+++ b/lib/oxidized/input/ssh.rb
@@ -24,7 +24,7 @@ module Oxidized
       secure = Oxidized.config.input.ssh.secure
       @log = File.open(Oxidized::Config::Log + "/#{@node.ip}-ssh", 'w') if Oxidized.config.input.debug?
       port = vars(:ssh_port) || 22
-      
+
       ssh_opts = {
                 :port => port.to_i,
                 :password => @node.auth[:password], :timeout => Oxidized.config.timeout,
@@ -47,15 +47,18 @@ module Oxidized
 
       Oxidized.logger.debug "lib/oxidized/input/ssh.rb: Connecting to #{@node.name}"
       @ssh = Net::SSH.start(@node.ip, @node.auth[:username], ssh_opts)
+      connected?
+    end
+
+    def login
       unless @exec
         shell_open @ssh
         begin
-          login
+          shell_login
         rescue Timeout::Error
           raise PromptUndetect, [ @output, 'not matching configured prompt', @node.prompt ].join(' ')
         end
       end
-      connected?
     end
 
     def connected?
@@ -116,7 +119,7 @@ module Oxidized
 
     # some models have SSH auth or terminal auth based on version of code
     # if SSH is configured for terminal auth, we'll still try to detect prompt
-    def login
+    def shell_login
       if @username
         match = expect username, @node.prompt
         if match == username
diff --git a/lib/oxidized/input/telnet.rb b/lib/oxidized/input/telnet.rb
index a5561b9..2b0a440 100644
--- a/lib/oxidized/input/telnet.rb
+++ b/lib/oxidized/input/telnet.rb
@@ -19,6 +19,9 @@ module Oxidized
       opt['Output_log'] = Oxidized::Config::Log + "/#{@node.ip}-telnet" if Oxidized.config.input.debug?
 
       @telnet  = Net::Telnet.new opt
+    end
+
+    def login
       if @node.auth[:username] and @node.auth[:username].length > 0
         expect username
         @telnet.puts @node.auth[:username]
-- 
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