import time

# from FrameWork.dynamic_web_server import HTTPServer

HTML_ROOT_DIR = "../../html"

class Application(object):

"""

一个通用的响应框架

"""

def __init__(self, a):

self.urls = a

def __call__(self, env, start_response):

path = env.get("PATH_INFO", "/") # 不确定字典中是否有该值，则可以用get方法

if path.startswith("/static"):

file_name = path[7:]

try:

file = open(HTML_ROOT_DIR + file_name, "rb")

except IOError:

start_response(status="404 not found", headers=[])

return "not found"

else:

file_data = file.read()

file.close()

start_response(status="200 OK", headers=[])

return file_data.decode("utf-8")

else:

for url, handler in self.urls:

if path == url:

response_body = handler(env, start_response)

return response_body

start_response(status="404 not found", headers=[])

response_body = "function or file not found"

return response_body

# 补充function信息，补充url到function的映射

def show_c_time(env, start_response):

# 当前调用的模式

env.get("Method")

env.get("PATH_INFO")

# env.get("QUERY_STRING")

# 当前调用的状态和头，用来组成报文头

status = "200 OK"

headers = [

("Content-Type", "text/plain")

]

start_response(status, headers)

# 返回相应体，在页面中显示的内容

return "You request the time--->"+str(time.ctime())

def say_hello(env, start_response):

env.get("Method")

status = "200 OK"

headers = [

("Content-Type", "text/plain")

]

start_response(status, headers)

# 返回相应体，在页面中显示的内容

return "<---hello--->"

# urls自定义

urls = [

("/", show_c_time),

("/c_time", show_c_time),

("/say_hello", say_hello)

]

app = Application(urls)

# if __name__ == '__main__':

# http_server = HTTPServer(app)

# http_server.bind(8000)

# http_server.start()