Методические материалы Лохтурова Вячеслава

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====== Программирование диалогов expect ======

===== Установка =====
<code>
server# apt install expect
</code>

===== Cisco CLI =====

==== Вариант использования с элементами конфигурации в коде скрипта ====

!!! Не обрабатывается ситуация первого подключения (подтверждения ключа)

<code>
server# ssh switchN

server# cat cisco_change_conf.exp
</code><code>
#!/usr/bin/expect

set sw [lindex $argv 0];

spawn ssh $sw
send "\n"
expect "sword:" { send "cisco\n" }

expect "#" { send "conf t\n" }
expect "#" { send "ip scp server enable\n" }
expect "#" { send "end\n" }

#expect "#" { send "vlan database\n" }
#expect "#" { send "vtp transparent\n" }
#expect "#" { send "vlan 2 name LAN2\n" }
#expect "#" { send "exit\n" }

expect "#" { send "write\n" }
expect "#" { send "exit\n" }
send_user "\n"
exit 0
</code><code>
server# chmod +x cisco_change_conf.exp

server# ./cisco_change_conf.exp switchN
</code>

==== Вариант использования с элементами конфигурации в файле на tftp сервере ====
<code>
server# cat /srv/tftp/cisco_change_conf.txt
</code><code>
ip scp server enable
end
</code><code>
server# cat cisco_change_conf.exp
</code><code>
...
expect "#" { send "copy tftp://server/cisco_change_conf.txt runn\n" }
send "\n"
send "\n"
...
</code>

===== Communigate CLI =====

<code>
mail# cat cgp_cli.exp
</code><code>
#!/usr/bin/expect

set cmd [lindex $argv 0];

spawn telnet localhost 106

expect "200" {
        send "USER postmaster\n"
}

expect "300" {
        send "PASS Pa\$\$w0rd\n"
}

expect "200" {
        send "$cmd\n\n"
}

expect "200" {}

sleep 1
send "QUIT\n"
send_user "\n"
exit 0
</code><code>
mail# chmod +x cgp_cli.exp

mail# ./cgp_cli.exp 'CREATEACCOUNT user2 {Password = "password2";RealName = "Петр Петрович Петров";}'

mail# ./cgp_cli.exp 'GETACCOUNTSETTINGS user2'
</code>

===== Asterisk AMI =====

  * [[http://the-asterisk-book.com/1.6/asterisk-manager-api.html#manager-interface-beispiel-expect|Example: Getting the number of voicemail messages with expect]]
<code>
# cat /usr/share/originate_ami.exp
</code><code>
#!/usr/bin/expect

set username "admin"
set secret "admin"
set host "127.0.0.1"
set port "5038"

set channel [lindex $argv 0];
set num [lindex $argv 1];
set name [lindex $argv 2];

send_user "Args: $channel $num $name\n"

spawn telnet $host $port

expect "Manager" {
        send "Action: Login\n"
        send "Username: $username\n"
        send "Secret: $secret\n\n"
}

expect "Response: Success" {
        send "Action: Originate\n"
        send "Channel: SIP/$channel\n"
        send "Context: default\n"
        send "Exten: $num\n"
        send "Callerid: $name<$num>\n"
        send "Priority: 1\n\n"
}

sleep 1

send "Action: Logoff\n\n"

exit 0
</code><code>
# /usr/share/originate_ami.exp 403 301 "Hello World"
</code>

===== Docker ======
<code>
webinar BBB# cat /root/scripts/ch_web_pass.exp
</code><code>
#!/usr/bin/expect

set email [lindex $argv 0];
set password [lindex $argv 1];

spawn docker exec -it greenlight-v2 bash
send "\n"
expect "bash*#" {send "bundle exec rails c\n"}
expect "irb*>" { send "User.find_by(email: \"$email\").update_attribute(:password,\"$password\")\n" }
expect "irb*>" { send "exit\n" }
expect "bash*#" { send "exit\n" }
send_user "\n"
exit 0
</code>
Методические материалы Лохтурова Вячеслава

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