Initial commit

Silly for shit-and-giggles attempt at rancid

1 files changed, 78 insertions, 0 deletions

diff --git a/lib/oxidized/input/ssh.rb b/lib/oxidized/input/ssh.rb
new file mode 100644
index 0000000..45c89ba
--- /dev/null
+++ b/lib/oxidized/input/ssh.rb
@@ -0,0 +1,78 @@
+module Oxidized
+  require 'net/ssh'
+  require 'oxidized/input/cli'
+  class SSH < Input
+    include CLI
+    class NoShell < StandardError; end
+
+    def connect node
+      @node       = node
+      @output     = ''
+      @node.model.cfg['ssh'].each { |cb| instance_exec &cb }
+      begin
+        @ssh = Net::SSH.start @node.ip, @node.auth[:username],
+                              :password => @node.auth[:password], :timeout => CFG.timeout
+      rescue Timeout::Error, Net::SSH::Disconnect
+        return false
+      end
+      @ses = open_shell @ssh unless @exec
+      not @ssh.closed?
+    end
+
+    def cmd cmd, expect=@node.prompt
+      Log.debug "SSH: #{cmd} @ #{@node.name}"
+      if @exec
+        @ssh.exec! cmd
+      else
+        cmd_shell(cmd, expect).gsub(/\r\n/, "\n")
+      end
+    end
+
+    private
+
+    def disconnect
+      begin
+        @pre_logout.each { |command| cmd command }
+        @ssh.loop
+        @ssh.close if not @ssh.closed?
+      rescue Net::SSH::Disconnect
+      end
+    end
+
+    def open_shell ssh
+      ses = ssh.open_channel do |ch|
+        ch.on_data do |ch, data|
+          @output << data
+        end
+        ch.request_pty do |ch, success|
+          raise NoShell, "Can't get PTY" unless success
+          ch.send_channel_request 'shell' do |ch, success|
+            raise NoShell, "Can't get shell" unless success
+          end
+        end
+      end
+      expect @node.prompt
+      ses
+    end
+
+    def exec state=nil
+      state == nil ? @exec : (@exec=state)
+    end
+
+    def cmd_shell(cmd, expect_re)
+      @output = ''
+      @ses.send_data cmd + "\n"
+      @ses.process
+      expect expect_re if expect_re
+      @output
+    end
+  
+    def expect regexp
+      @ssh.loop(0.1) do
+        sleep 0.1
+        not @output.match regexp
+      end
+    end
+
+  end
+end