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一個python腳本打開套接字，另一個通過套接字發送數據

[英]one python script to open a socket, another to send data over the socket

 原文  2019-02-18 19:14:00  4   1    python/ sockets/ agi

問題描述

我正在研究Asterisk AGI和Python 3的集成。 我在編寫腳本時遇到麻煩，我想這可能是因為它一次運行了太多，最后關閉了套接字導致了問題。

  • 我有一個系統將SIP呼叫發送到星號。
  • 星號然后執行腳本。
  • 腳本打開一個TCP套接字，並發送數據以關閉該腳本結尾的套接字。

如果我一次打進來一個電話，或者他們錯開了，腳本將完美執行。 如果我有多個電話同時打來，請說5（在這種情況下很常見），接收數據的套接字只能處理2個完全完成的腳本。

我試圖最小化腳本，以查看是否可以使它更快地執行，除去不需要的內容，刪除日志記錄，刪除#out行。 我唯一能做的就是嘗試錯開通話，這不是一個可行的選擇。 

#!/usr/bin/env python3

import serial
import re
from time import sleep
import logging
import logging.handlers
from configparser import ConfigParser
import sys
import asterisk
import asterisk.agi
from asterisk.agi import *
import socket
import os
import sys

config = ConfigParser()
config.read('/var/www/html/config.ini')
LOG_LEVEL = logging.info('LOGGING', 'level')

# Initialize logging
LOGGER = logging.getLogger('axi')
LOGGER.setLevel(logging.INFO)
formatter = logging.Formatter('|%(asctime)s|%(levelname)-8s|%(name)s|%(message)s')
log_file = logging.handlers.TimedRotatingFileHandler('/var/log/axi/input.csv', when='midnight', backupCount=7)
log_file.setLevel(logging.INFO)
log_file.setFormatter(formatter)
LOGGER.addHandler(log_file)

# Only print to console if at DEBUG level
if LOG_LEVEL == 'DEBUG':
log_console = logging.StreamHandler()
log_console.setLevel(logging.INFO)
log_console.formatter(formatter)
LOGGER.addHandler(log_console)

#BAUD = config.get('USB_Settings', 'baudrate')
#PTY = config.get('USB_Settings', 'parity')
#STPB = int(config.get('USB_Settings', 'stopbits'))
#BTSZ = int(config.get('USB_Settings', 'bytesize'))

HOST = config.get('Ethernet_Paging_System', 'IP')
PORT = config.get('Ethernet_Paging_System', 'Port')

agi = AGI()

pin = agi.env['agi_extension']
msg = agi.env['agi_calleridname']

geekspeak = {
    "<ESC>": '\\x1b',
    "<ETX>": '\\x03',
    "<CR>": '\\r',
    "<ACK>": '\\x06',
    "<NAK>": '\\x15',
    "<EOT>": '\\x04',
    "<STX>": '\\x02'
}

htmlspeak = {
    "&ltESC&gt": '\\x1b',
    "&ltETX&gt": '\\x03',
    "&ltCR&gt": '\\r',
    "&ltACK&gt": '\\x06',
    "&ltNAK&gt": '\\x15',
    "&ltEOT&gt": '\\x04',
    "&ltSTX&gt": '\\x02'
}


def str2geek(string):
    geekstr = str(string)
    for key, value in geekspeak.items():
        if key in geekstr:
            geekstr = geekstr.replace(key, value)
    return geekstr


def geek2str(string):
    sstr = str(string)
    for key, value in geekspeak.items():
        if value in sstr:
            sstr = sstr.replace(value, key)
    return sstr


def html2str(string):
    hstr = str(string)
    for key, value in htmlspeak.items():
        if value in hstr:
            hstr = hstr.replace(value, key)
    return hstr

#Socket setup
s = None
for res in socket.getaddrinfo(HOST, PORT, socket.AF_INET, socket.SOCK_STREAM):
    af, socktype, proto, canonname, sa = res
    try:
        s = socket.socket(af, socktype, proto)
    except OSError as msg:
        s = None
        continue
    try:
    s.connect(sa)
    except OSError as msg:
    s.close()
    s = None
    continue
    break
if s is None:
    LOGGER.info('---Could not open socket')
    sys.exit(1)
with s:
    s.send(b'\\r')
    sleep(0.5)
    s.send(b'\\x1bPG1\\r')
    strng=(pin)+(msg)
#New Code for Checksum
    list_ascii=[ord(i) for i in strng]
    #Prints each car decimal value
    #print(list_ascii)
    b=sum(list_ascii)+31
    #Convert sum to 12 bit binary and parse to 4 sections frist 4 middle 4 last 4
    h1=(bin(b)[2:].zfill(12)[8:])
    h2=(bin(b)[2:].zfill(12)[4:8])
    h3=(bin(b)[2:].zfill(12)[0:4])
    #Adds 48 decimal value per TAP 1.8
    i1=(int(h1, 2)+48)
    i2=(int(h2, 2)+48)
    i3=(int(h3, 2)+48)
    #Gives checksum value
    chks=chr(i3)+chr(i2)+chr(i1)
    LOGGER.info('---Pin:' + pin + ' - ' + 'Message:' + msg + ' - checksum:' + chks)
    s.send('\x02'.encode() + (pin).encode() + '\r'.encode() + msg.encode() + '\r\x03'.encode() + (chks).encode() + '\r'.encode())
    resp=str(s.recv(1024))
    if resp:
        LOGGER.info(html2str(resp))
        if '15' in resp:
            LOGGER.info('page not accepted')
        if resp:
            sleep(0.5)
            s.send(b'\x04\r')
            sleep(0.5)
            LOGGER.info('---Page Accepted' + ' - checksum:' + chks)
            s.close()

我希望能夠創建一個使TCP套接字保持活動狀態的腳本，而另一個腳本將在對星號的調用上執行，並通過套接字或已運行的python腳本發送該數據，並開始使用變量發送數據的過程。

謝謝

1 個解決方案

解決方案1
 0 已采納  2019-03-01 13:42:40

這是我的方法。 我得到了第一個腳本來運行對星號的調用，第二個腳本打開連接並保持打開狀態，直到一側關閉為止。 星號腳本僅在呼叫進入星號時運行，並將入站SIP消息轉換為在護士呼叫行業大量使用的TAP 1.8消息。 我作為服務運行的套接字腳本打開了連接以發送數據。

星號腳本 

#!/usr/bin/env python3

import serial
import re
from time import sleep
import sys
import asterisk
import asterisk.agi
from asterisk.agi import *
import socket
import os

geekspeak = {
    "<ESC>": '\\x1b',
    "<ETX>": '\\x03',
    "<CR>": '\\r',
    "<ACK>": '\\x06',
    "<NAK>": '\\x15',
    "<EOT>": '\\x04',
    "<STX>": '\\x02'
}

htmlspeak = {
    "&ltESC&gt": '\\x1b',
    "&ltETX&gt": '\\x03',
    "&ltCR&gt": '\\r',
    "&ltACK&gt": '\\x06',
    "&ltNAK&gt": '\\x15',
    "&ltEOT&gt": '\\x04',
    "&ltSTX&gt": '\\x02'
}

def str2geek(string):
    geekstr = str(string)
    for key, value in geekspeak.items():
        if key in geekstr:
            geekstr = geekstr.replace(key, value)
    return geekstr


def geek2str(string):
    sstr = str(string)
    for key, value in geekspeak.items():
        if value in sstr:
            sstr = sstr.replace(value, key)
    return sstr


def html2str(string):
    hstr = str(string)
    for key, value in htmlspeak.items():
        if value in hstr:
            hstr = hstr.replace(value, key)
    return hstr

agi = AGI()
pin = '201' #agi.env['agi_extension']
msg = 'TEST' #agi.env['agi_calleridname']
strng=(pin)+(msg)
#New Code for Checksum
list_ascii=[ord(i) for i in strng]
#Prints each car decimal value
#print(list_ascii)
b=sum(list_ascii)+31
#Convert sum to 12 bit binary and parse to 4 sections frist 4 middle 4 last 4
h1=(bin(b)[2:].zfill(12)[8:])
h2=(bin(b)[2:].zfill(12)[4:8])
h3=(bin(b)[2:].zfill(12)[0:4])
#Adds 48 decimal value per TAP 1.8
i1=(int(h1, 2)+48)
i2=(int(h2, 2)+48)
i3=(int(h3, 2)+48)
#Gives checksum value
chks=chr(i3)+chr(i2)+chr(i1)
#Socket setup
s = None
for res in socket.getaddrinfo("localhost", 9988, socket.AF_INET, socket.SOCK_STREAM):
    af, socktype, proto, canonname, sa = res
    try:
        s = socket.socket(af, socktype, proto)
    except OSError as msg:
        s = None
        continue
    try:
        s.connect(sa)
    except OSError as msg:
        s.close()
        s = None
        continue
    break
if s is None:
    sys.exit(1)
with s:
    s.send('\x02'.encode() + (pin).encode() + '\r'.encode() + msg.encode() + '\r\x03'.encode() + (chks).encode() + '\r'.encode())
    s.close()

套接字腳本 

#!/usr/bin/env python3

import serial
import re
from time import sleep
import logging
import logging.handlers
from configparser import ConfigParser
import socket
import os
import sys

config = ConfigParser()
config.read('/var/www/html/config.ini')
LOG_LEVEL = logging.info('LOGGING', 'level')

# Initialize logging
LOGGER = logging.getLogger('axi')
LOGGER.setLevel(logging.INFO)
formatter = logging.Formatter('|%(asctime)s|%(levelname)-8s|%(name)s|%(message)s')
log_file = logging.handlers.TimedRotatingFileHandler('/var/log/axi/input.csv', when='midnight', backupCount=7)
log_file.setLevel(logging.INFO)
log_file.setFormatter(formatter)
LOGGER.addHandler(log_file)

# Only print to console if at DEBUG level
if LOG_LEVEL == 'DEBUG':
    log_console = logging.StreamHandler()
    log_console.setLevel(logging.INFO)
    log_console.formatter(formatter)
    LOGGER.addHandler(log_console)

HOST = config.get('Ethernet_Paging_System', 'IP')
PORT = config.get('Ethernet_Paging_System', 'Port')

#Socket setup
s2 = None
for res in socket.getaddrinfo(HOST, PORT, socket.AF_INET, socket.SOCK_STREAM):
    af, socktype, proto, canonname, sa = res
    try:
        s2 = socket.socket(af, socktype, proto)
    except OSError as msg:
        s2 = None
        continue
    try:
        s2.connect(sa)
    except OSError as msg:
        s2.close()
        s2 = None
        continue
    break
if s2 is None:
    LOGGER.info('---Could not open socket')
    sys.exit(1)
#listening Socket
s3 = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s3.bind(("localhost", 9988))
s3.listen(1)

while True:
    conn, addr = s3.accept()
    data = conn.recv(1024)
    if data:
        #with s2:
        s2.send(b'\\r')
        sleep(0.5)
        s2.send(b'\\x1bPG1\\r')
        LOGGER.info(data)
        s2.send(data)
        resp=str(s2.recv(1024))
        if resp:
#            LOGGER.info(html2str(resp))
            if '15' in resp:
                LOGGER.info('page not accepted')
            if resp:
                s2.send(b'\x04\r')
                LOGGER.info('---Page Accepted')

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