asterisk事件监控

asterisk有一个很好的东东，就是Event，会主动通知客户端服务器发生了什么……不过前提是你得先连上服务器。

好，不废话了，下面开工。

首先声明下环境：CentOS 6

一、安装并配置asterisk

1、下载asterisk

wget http://downloads.asterisk.org/pub/telephony/asterisk/releases/asterisk-1.8.7.1.tar.gz

2、解压并安装

tar zxvf asterisk-1.8.7.1.tar.gz

cd asterisk-1.8.7.1

./configure && make && make install && make samples

涉及的命令：

yum install libxml2-devel

yum install ncurses-devel

3、开启AMI管理

编辑manager.conf文件，将general中的enabled置为yes

添加管理员：

[admin]

secret = 123456

read = system,call,log,verbose,agent,user,config,dtmf,reporting,cdr,dialplan

write = system,call,agent,user,config,command,reporting,originate

 

 

二、编写Asterisk事件监控程序 

原理：通过login action连上Asterisk的5038端口，监听此端口并把消息输出。 

下面是C++实现的代码： 

/*
    File      : asteriskEventCat.cpp
    Author    : Mike
    E-Mail    : Mike_Zhang@live.com
*/

#include <iostream>
#include <string>
#include <fstream>
#include <boost/asio.hpp>
#define BLOCK_SIZE 10*1024

using namespace std;
using namespace boost::asio;

string strLogin(string userName,string pswwd)
{
    string msg="";
    msg = "Action: login\r\n";
    msg += "UserName: " + userName + "\r\n";
    msg += "Secret: " + pswwd + "\r\n";
    msg += "\r\n";    
    return msg;
}

int main()
{
    io_service iosv;
    ip::tcp::socket s(iosv);
    string svrIp = "";
    cout<<"Input server ip : ";
    cin>>svrIp;
    ip::tcp::endpoint ep(ip::address_v4::from_string(svrIp.c_str()),5038);

    boost::system::error_code ec; 
    s.connect(ep,ec); 
    if(ec)
    {
        cout << boost::system::system_error(ec).what() << endl;         
        return -1; 
    } 
    else
    {
        cout<<"Connect success!"<<endl;
    }

    string msg="";

    string userName,password;
    cout<<"User     : ";
    cin>>userName;
    cout<<"Password : ";
    cin>>password;

    msg += strLogin(userName.c_str(),password.c_str());
    //    msg += strLogin("admin","admin");
    size_t len = s.write_some(buffer(msg.c_str()), ec);
    if(len <= 0)
    {
        cout<<"Send message fail!"<<endl;
        return -1;
    }

    std::ofstream fout("EventCat.txt");
    while(true)
    {
        char buf[BLOCK_SIZE] = {0};
        len=s.read_some(buffer(buf), ec); 
        if(len<=0)
            break;
        cout.write(buf, len); 
        fout<<buf;
        fout.flush();
    }    

    return 0;
}

 

三、进行事件监控 

首先要保证你的防火墙让你过5038端口，嫌配置麻烦的话把防火墙关闭就行了，下面是运行效果：

 我这人比较懒，虽是所谓的C/C++程序员，可是总嫌C++写的代码多，经常用python做模型，

下面是我之前写的，这里也顺便粘出来一起总结，仅供参考，欢迎拍砖。 

Python代码： 

'''
        File      : asteriskEventCat.py
        Author    : Mike
        E-Mail    : Mike_Zhang@live.com
'''
import socket

bufLen = 1024 * 10
def strLogin(userName,passwd):
        msg = 'Action: login\r\n'
        msg += 'UserName: '+userName+'\r\n'
        msg += 'Secret: '+passwd+'\r\n'
        msg += '\r\n'
        return msg
def main():
        s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
        s.connect((raw_input("Input ip : "), 5038))

        ifnot s :
                print"Connect fail!"
                return
        s.send(strLogin(raw_input("Input user name :"),raw_input("Input password :")))
        whileTrue:
                data = s.recv(bufLen)
                iflen(data) <=0 : continue
                print data
if __name__ == '__main__':
        main()
        raw_input("Press Enter to continue")

现在在学习go语言，捎带下，也方便我以后Ctrl + C： 

/*
        File      : asteriskEventCat.go
        Author    : Mike
        E-Mail    : Mike_Zhang@live.com
*/
package main

import (
        "net"
        "bufio"
        "os"
)

var bufLen = 1024 * 10
var lineLen = 2 // windows : "\r\n" 2 ; linux : "\n" 1

func main() {
        reader := bufio.NewReader(os.Stdin)
        print("Input ip : ") ; svrIp, _ := reader.ReadBytes('\n')
        print("Input userName : ") ; usrName, _ := reader.ReadBytes('\n')
        print("Input passwd : ") ; pwd, _ := reader.ReadBytes('\n')
        conn,err := net.Dial("tcp",string(svrIp[0:len(svrIp)-lineLen])+":5038")
        defer conn.Close()
        if err != nil {
                println("Error : ",err.Error()) //In go 1 , use err.Error() ,not err.String()
        }
        conn.Write([]byte("Action: login\r\nUserName: "+
        string(usrName[0:len(usrName)-lineLen])+"\r\nSecret: "+
        string(pwd[0:len(pwd)-lineLen])+"\r\n\r\n"))
        for {
                p := make([]byte,bufLen)
                sz, _ := bufio.NewReader(conn).Read(p)
                println(string(p[0:sz]))
        }
}

好，就这些了，希望对你有帮助。