process.py
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# -*- coding: UTF-8 -*-
# -------------------------------------------------
# 请不要随意修改文件中的代码
# -------------------------------------------------
import sys
import time
import threading
import socket
import json
import datetime
import php_python
REQUEST_MIN_LEN = 10 # 合法的request消息包最小长度
TIMEOUT = 180 # socket处理时间180秒
pc_dict = {} # 预编译字典,key:调用模块、函数、参数字符串,值是编译对象
global_env = {} # global环境变量
def index(byte_str, c, pos=0):
"""
查找c字符在bytes中的位置(从0开始),找不到返回-1
pos: 查找起始位置
"""
for i in range(len(byte_str)):
if i <= pos:
continue
if byte_str[i] == c:
return i
else:
return -1
def parse_php_req(p):
"""
解析PHP请求消息
返回:元组(模块名,函数名,入参list)
"""
str_p = bytes.decode(p)
params = json.loads(str_p)
module_func = params[0] # 第一个元素是调用模块和函数名
# print("模块和函数名:%s" % module_func)
# print("参数:%s" % params[1:])
pos = module_func.find("::")
module = module_func[:pos] # 模块名
func = module_func[pos + 2:] # 函数名
return module, func, params[1:]
class ProcessThread(threading.Thread):
"""
preThread 处理线程
"""
def __init__(self, client_socket):
threading.Thread.__init__(self)
# 客户socket
self._socket = client_socket
def run(self):
start = datetime.datetime.now()
start_clock = time.clock()
# ---------------------------------------------------
# 1.接收消息
# ---------------------------------------------------
try:
self._socket.settimeout(TIMEOUT) # 设置socket超时时间
first_buf = self._socket.recv(16 * 1024) # 接收第一个消息包(bytes)
if len(first_buf) < REQUEST_MIN_LEN: # 不够消息最小长度
print("非法包,小于最小长度: %s" % first_buf)
self._socket.close()
return
first_comma = index(first_buf, 0x2c) # 查找第一个","分割符
total_len = int(first_buf[0:first_comma]) # 消息包总长度
print("消息长度:%d" % total_len)
req_msg = first_buf[first_comma + 1:]
while len(req_msg) < total_len:
req_msg = req_msg + self._socket.recv(16 * 1024)
# 调试
# print ("请求包:%s" % req_msg)
except Exception as e:
print('接收消息异常', e)
self._socket.close()
return
# ---------------------------------------------------
# 2.调用模块、函数检查,预编译。
# ---------------------------------------------------
# 从消息包中解析出模块名、函数名、入参list
module, func, params = parse_php_req(req_msg)
if module not in pc_dict: # 预编译字典中没有此编译模块
# 检查模块、函数是否存在
try:
call_mod = __import__(module) # 根据module名,反射出module
pc_dict[module] = call_mod # 预编译字典缓存此模块
except Exception as e:
print('模块不存在:%s' % module, e)
self._socket.sendall(("F" + "module '%s' is not exist!" % module).encode(php_python.CHARSET)) # 异常
self._socket.close()
return
else:
call_mod = pc_dict[module] # 从预编译字典中获得模块对象
try:
getattr(call_mod, func)
except Exception as e:
print('函数不存在:%s' % func, e)
self._socket.sendall(("F" + "function '%s()' is not exist!" % func).encode(php_python.CHARSET)) # 异常
self._socket.close()
return
# ---------------------------------------------------
# 3.Python函数调用
# ---------------------------------------------------
try:
params = ','.join([repr(x) for x in params])
# print ("调用函数及参数:%s(%s)" % (module+'.'+func, params) )
# 加载函数
compile_str = "import %s\nret = %s(%s)" % (module, module + '.' + func, params)
print("函数调用代码:%s" % compile_str)
compile_func = compile(compile_str, "", "exec")
if func not in global_env:
global_env[func] = compile_func
local_env = {}
exec(compile_func, global_env, local_env) # 函数调用
# print (global_env)
# print (local_env)
except Exception as e:
print('调用Python业务函数异常', e)
err_type, err_msg, traceback = sys.exc_info()
self._socket.sendall(("F%s" % err_msg).encode(php_python.CHARSET)) # 异常信息返回
self._socket.close()
return
# ---------------------------------------------------
# 4.结果返回给PHP
# ---------------------------------------------------
# retType = type(local_env['ret'])
# print ("函数返回:%s" % retType)
resp_str = json.dumps(local_env['ret']) # 函数结果组装为PHP序列化字符串
try:
# 加上成功前缀'S'
resp_str = "S" + resp_str
# 调试
# print ("返回包:%s" % resp_str)
self._socket.sendall(resp_str.encode(php_python.CHARSET))
except Exception as e:
print('发送消息异常', e)
err_type, err_msg, traceback = sys.exc_info()
self._socket.sendall(("F%s" % err_msg).encode(php_python.CHARSET)) # 异常信息返回
finally:
self._socket.close()
end = datetime.datetime.now()
end_clock = time.clock()
start_str = start.strftime('%H:%M:%S')
end_str = end.strftime('%H:%M:%S')
print("开始时间:%s" % start_str)
print("结束时间:%s" % end_str)
print("读取时间 %d 秒" % (end.timestamp() - start.timestamp()))
print("CPU时间 %d" % (end_clock - start_clock))
return