shell通过telnet调用http和smtp协议

expect命令简介

Expect是一个免费的编程工具语言，用来实现自动和交互式任务进行通信，而无需人的干预。常用语ssh和telnet等需要进行人机交互的命令。

以前写过一个expect实现ssh跳转登录的例子：http://blog.csdn.net/koastal/article/details/52434314

基本结构

## 如果expect文件不存在，需要安装 yum install expect#!/usr/bin/expect## 设置脚本超时时间set timeout 30## 执行spawn之后的命令spawn ssh -l root 192.168.238.130## 如果执行结果包含expect之后的内容，则继续执行，否则退出expect "password:"## 模拟人工发送数据send "root\r"## 执行完成后保持交互状态，把控制权交给控制台，可以进一步人工操作interact 

HTTP和SMTP的报文格式

具体报文格式参照，php通过sock实现http和smtp的文章：http://blog.csdn.net/koastal/article/details/53149689

shell发送HTTP请求

expect发送GET请求

基本格式

#!/usr/bin/expectset timeout 30spawn telnet 127.0.0.1 80expect "]"send "GET /demo.php?name=zhezhao&age=23 HTTP/1.1\r"send "Host: 127.0.0.1\r"send "Connection: close\r"send "\r\r"interact

expect发送POST请求

基本格式

#!/usr/bin/expectset timeout 30set data "name=zhezhao&age=23"set length [string length $data]spawn telnet 127.0.0.1 80expect "]"send "POST /demo.php HTTP/1.1\r"send "Host: 127.0.0.1\r"send "Content-type:application/x-www-form-urlencoded\r"send "Content-length:$length\r"send "Connection: close\r\r"send "$data\r"interact

shell模拟curl发送HTTP请求

## 发送GET请求./curl.sh "http://127.0.0.1/demo.php?name=zhezhao&age=23"## 发送POST请求./curl.sh -d "name=zhezhao&age=23" "http://127.0.0.1/demo.php"

因为使用except了执行脚本，所以需要使用Tcl语法编写代码（因为except基于Tcl）。
Tcl语法相关资料可以参考：
http://www.yiibai.com/tcl/
http://blog.chinaunix.net/uid-25324849-id-3191069.html
http://blog.sina.com.cn/s/blog_4b3c1f950102e4n5.html
http://blog.csdn.net/dulixin/article/details/2203908

#!/usr/bin/expectset timeout 30set tag [lindex $argv 0]set option "-d"if {$tag == $option} {    set method POST    set data [lindex $argv 1]    set url [lindex $argv 2]    set length [string length $data]} else {    set method GET    set url [lindex $argv 0] }set port 80set path /set tag [string last : $url]if {$tag != -1 && $tag != 4} {    ## 用户手动给出了端口号    ## 通过: 进行分割    set arr [split $url ":"]    if {[llength $arr] == 3} {        set host [lindex $arr 1]         set tmp [lindex $arr 2]    } else {        set host [lindex $arr 0]         set tmp [lindex $arr 1]    }    set host [string trimleft $host "//"]    ## 通过/ 进行分割    set arr [split $tmp "/"]    for {set i 0} {$i < [llength $arr]} {incr i} {        if {$i == 0} {            set port [lindex $arr $i]        } else {            append path [lindex $arr $i]            append path /        }    }} else {    ## 通过: 进行分割    set tmp $url    set arr [split $url ":"]    if {[llength $arr] == 2} {        set tmp [lindex $arr 1]     }    ## 通过/ 进行分割    set tmp [string trimleft $tmp "//"]    set arr [split $tmp "/"]    for {set i 0} {$i < [llength $arr]} {incr i} {        if {$i == 0} {            set host [lindex $arr $i]        } else {            append path [lindex $arr $i]            append path /        }    }}## 校正pathif {[string length $path] > 1} {    set path [string trimright $path "/"]}   spawn telnet $host $portexpect "]"send "$method $path HTTP/1.1\r"send "Host: $host:$port\r"if {$method == "POST"} {    send "Content-type:application/x-www-form-urlencoded\r"    send "Content-length:$length\r"}send "Connection: close\r\r"if {$method == "POST"} {    send "$data\r"}interact

shell通过实现smtp协议发送邮件

基本格式

#!/usr/bin/expectset timeout 60spawn telnet smtp.163.com 25expect "220"#和服务器打招呼send "HELO localhost\r"expect "250"#验证用户和密码send "AUTH LOGIN 发件人邮箱base64编码\r"expect "334"send "发件人邮箱密码base64编码\r"expect "235"#书写信封send "MAIL FROM:<发件人邮箱>\r"expect "250"send "RCPT TO:<收人邮箱>\r"expect "250"#书写新建内容send "DATA\r"expect "354"send "from:发件人邮箱\r"send "to:收人邮箱\r"send "subject:server error\r"send "MIME-Version:1.0\r"send "content-type:text/plain\r\r"send "let us become MI boy\r"send ".\r"expect "250"#邮件发送成功，断开连接send "qiut"

通用脚本

./mail.sh [e-mail] "代码如诗" "好事好事~"

#!/usr/bin/expectset mailto [lindex $argv 0]  set subject [lindex $argv 1]  set body [lindex $argv 2]  set timeout 60spawn telnet smtp.163.com 25expect "220"#和服务器打招呼send "HELO localhost\r"expect "250"#验证用户和密码send "AUTH LOGIN 发件人邮箱base64编码\r"expect "334"send "发件人邮箱密码base64编码\r"expect "235"#书写信封send "MAIL FROM:<发件人邮箱>\r"expect "250"send "RCPT TO:<$mailto>\r"expect "250"#书写新建内容send "DATA\r"expect "354"send "from:发件人邮箱\r"send "to:$mailto\r"send "subject:$subject\r"send "MIME-Version:1.0\r"send "content-type:text/plain\r\r"send "$body\r"send ".\r"expect "250"#邮件发送成功，断开连接send "qiut"

python通过smtp发送邮件

#!/usr/bin/python# -*- coding: utf-8 -*-from email import encodersfrom email.header import Headerfrom email.mime.text import MIMETextimport smtplibfrom_addr = "[e-mail]";password = "XXXX";to_addr = "[e-mail]";smtp_server = "smtp.163.com";msg = MIMEText('<html><body><h1>Hello</h1>' +            '<p>send by <a href="http://www.python.org">Python</a>...</p>' +                '</body></html>', 'html', 'utf-8');msg['From'] = from_addr;msg['To'] = to_addr;msg['Subject'] = Header(u'来自SMTP的问候……', 'utf-8').encode();server = smtplib.SMTP(smtp_server, 25)server.set_debuglevel(1)server.login(from_addr, password)server.sendmail(from_addr, [to_addr], msg.as_string())server.quit()

参考文章：

http://www.liaoxuefeng.com/wiki/001374738125095c955c1e6d8bb493182103fac9270762a000/001386832745198026a685614e7462fb57dbf733cc9f3ad000