初步完成服务器向多个客户端递交爬虫请求，客户端返回爬虫结果到全局外部变量

dcs/tests/client.py

@@ -1,5 +1,7 @@
 # -*- coding: UTF-8 -*-
+import json
 import struct
+import threading
 from threading import Thread
 import socket
 from json import JSONEncoder, JSONDecoder
@@ -152,11 +154,35 @@ class Client(Thread):
         self.end()
 
 
+def response():
+    socket_to_server = socket.socket(socket.AF_INET, socket.SOCK_STREAM, socket.IPPROTO_TCP)
+    socket_to_server.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
+    socket_to_server.bind(('', 7798))
+    socket_to_server.listen()
+    while True:
+        server_socket, _ = socket_to_server.accept()
+        request_header_size = struct.unpack("!Q", read_bytes(server_socket, 8))[0]
+        request_map = json.JSONDecoder().decode(read_bytes(server_socket, request_header_size).decode("utf-8"))
+        print(request_map)
+        response_map = {'response': 'I am replying...'}
+        server_socket.sendall(generate_response(response_map))
+
+
+def generate_response(response_map):
+    response_binary = json.JSONEncoder().encode(response_map).encode("utf-8")
+    response_binary_len = len(response_binary)
+    response_binary_len_binary = struct.pack("!Q", response_binary_len)
+    response_binary = response_binary_len_binary + response_binary
+
+    return response_binary
+
+
 download_task = Client(ip, port)
 download_task.daemon = True
-download_task.start()
-download_task.join()
+# download_task.start()
+# download_task.join()
 server = Server(7777)
 server.daemon = True
 server.start()
+response()
 server.join()

dcs/tests/client1.py

@@ -0,0 +1,188 @@
+# -*- coding: UTF-8 -*-
+import json
+import struct
+import threading
+from threading import Thread
+import socket
+from json import JSONEncoder, JSONDecoder
+import sys
+from dcs.tests.server import Server
+
+# -------------------------------配置--------------------------------------------
+# ------------------------------config--------------------------------------------
+
+if len(sys.argv) < 2:
+    ip = "127.0.0.1"  # server的ip
+else:
+    ip = sys.argv[1]
+port = 7777  # server的port
+
+
+def read_bytes(s: 'socket.socket', size: 'int') -> 'bytes':
+    """
+    从socket读取size个字节
+    :param s:套接字
+    :param size:要读取的大小
+    :return:读取的字节数，在遇到套接字关闭的情况下，返回的数据的长度可能小于 size
+    """
+    data = ''.encode('utf-8')
+    while len(data) < size:
+        rsp_data = s.recv(size - len(data))
+        data += rsp_data
+        if len(rsp_data) == 0:
+            break
+    return data
+
+
+def generate_request(request) -> 'bytes':
+    """
+    根据传入的dict生成请求
+    请求包含 8字节头长度+头数据
+    :param request: dict
+    :return: bytes 请求数据
+    """
+    request_bytes = JSONEncoder().encode(request).encode("utf-8")
+    return struct.pack("!Q", len(request_bytes)) + request_bytes
+
+
+class Client(Thread):
+    def __init__(self, server_ip: str, server_port: int) -> None:
+        """
+        :param server_ip: 服务器IP
+        :param server_port: 服务器端口
+        """
+        super().__init__()
+        self.ip = server_ip
+        self.port = server_port
+        self.cookie = None
+
+    def test(self):
+        with socket.socket(socket.AF_INET, socket.SOCK_STREAM, socket.IPPROTO_TCP) as socket_to_server:
+            socket_to_server.connect((self.ip, self.port))
+            request = dict()
+            request['action'] = 'test'
+
+            full_request = generate_request(request)
+
+            socket_to_server.sendall(full_request)
+
+            responseJson = JSONDecoder().decode(
+                read_bytes(socket_to_server, struct.unpack('!Q', socket_to_server.recv(8))[0]).decode(
+                    "utf-8"))
+
+            return responseJson['test']
+
+    def crawling(self, word: str, pages_start: int, pages_end: int):
+        with socket.socket(socket.AF_INET, socket.SOCK_STREAM, socket.IPPROTO_TCP) as socket_to_server:
+            socket_to_server.connect((self.ip, self.port))
+            request = dict()
+            request['action'] = 'crawl zhiwang'
+            request['word'] = word
+            request['pages_start'] = str(pages_start)
+            request['pages_end'] = str(pages_end)
+            request['cookie'] = '2b0fd361bbf0b986fbc20d989a224d66fe9cb13a'
+
+            full_request = generate_request(request)
+
+            socket_to_server.sendall(full_request)
+
+            responseJson = JSONDecoder().decode(
+                read_bytes(socket_to_server, struct.unpack('!Q', socket_to_server.recv(8))[0]).decode(
+                    "utf-8"))
+
+            return responseJson['crawl zhiwang']
+
+    def report_status(self, status: str):
+        # status: free or busy
+        with socket.socket(socket.AF_INET, socket.SOCK_STREAM, socket.IPPROTO_TCP) as socket_to_server:
+            socket_to_server.connect((self.ip, self.port))
+            request = dict()
+            request['action'] = 'report_' + status
+            request['spider_info'] = (ip, port)
+            request['cookie'] = self.cookie
+
+            full_request = generate_request(request)
+
+            socket_to_server.sendall(full_request)
+
+            responseJson = JSONDecoder().decode(
+                read_bytes(socket_to_server, struct.unpack('!Q', socket_to_server.recv(8))[0]).decode(
+                    "utf-8"))
+
+            return responseJson['report_' + status]
+
+    def end(self):
+        """
+        结束通信
+        :return:
+        """
+        with socket.socket(socket.AF_INET, socket.SOCK_STREAM, socket.IPPROTO_TCP) as socket_to_server:
+            socket_to_server.connect((self.ip, self.port))
+            request = dict()
+            request['action'] = 'end'
+
+            full_request = generate_request(request)
+
+            socket_to_server.sendall(full_request)
+
+            print("end communication!")
+
+    def login(self, user, password):
+        with socket.socket(socket.AF_INET, socket.SOCK_STREAM, socket.IPPROTO_TCP) as socket_to_server:
+            socket_to_server.connect((self.ip, self.port))
+            request = dict()
+            request['action'] = 'login'
+            request['user'] = user
+            request['password'] = password
+
+            full_request = generate_request(request)
+
+            socket_to_server.sendall(full_request)
+
+            responseJson = JSONDecoder().decode(
+                read_bytes(socket_to_server, struct.unpack('!Q', socket_to_server.recv(8))[0]).decode(
+                    "utf-8"))
+
+            if responseJson['login'] not in ['用户名错误，登录失败', '密码错误，登录失败']:
+                self.cookie = responseJson['login']
+            return responseJson['login']
+
+    def run(self) -> None:
+        print(self.login('2', '2'))
+        print(self.report_status('free'))
+        print(self.crawling(input("word:"), pages_start=1, pages_end=4))  # [3,4)
+        self.end()
+
+
+def response():
+    socket_to_server = socket.socket(socket.AF_INET, socket.SOCK_STREAM, socket.IPPROTO_TCP)
+    socket_to_server.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
+    socket_to_server.bind(('', 7799))
+    socket_to_server.listen()
+    while True:
+        server_socket, _ = socket_to_server.accept()
+        request_header_size = struct.unpack("!Q", read_bytes(server_socket, 8))[0]
+        request_map = json.JSONDecoder().decode(read_bytes(server_socket, request_header_size).decode("utf-8"))
+        print(request_map)
+        response_map = {'response1': 'I am replying...'}
+        server_socket.sendall(generate_response(response_map))
+
+
+def generate_response(response_map):
+    response_binary = json.JSONEncoder().encode(response_map).encode("utf-8")
+    response_binary_len = len(response_binary)
+    response_binary_len_binary = struct.pack("!Q", response_binary_len)
+    response_binary = response_binary_len_binary + response_binary
+
+    return response_binary
+
+
+download_task = Client(ip, port)
+download_task.daemon = True
+# download_task.start()
+# download_task.join()
+# server = Server(7777)
+# server.daemon = True
+# server.start()
+response()
+# server.join()

dcs/tests/config.py

@@ -1,4 +1,5 @@
 import socket
+from collections import deque
 
 
 class CUI:
@@ -9,6 +10,7 @@ class CUI:
         self.state = state
         self.cookie = cookie
         self.socket = st
+        self.crawl_result = deque()
 
 
 class global_var:

dcs/tests/requester.py

@@ -0,0 +1,72 @@
+import socket
+import threading
+import struct
+from json import JSONEncoder, JSONDecoder
+from time import sleep
+
+from loguru import logger
+from collections import deque
+
+
+def read_bytes(s: 'socket.socket', size: 'int') -> 'bytes':
+    data = ''.encode('utf-8')
+    while len(data) < size:
+        rsp_data = s.recv(size - len(data))
+        data += rsp_data
+        if len(rsp_data) == 0:
+            break
+    return data
+
+
+def generate_request(request) -> 'bytes':
+    request_bytes = JSONEncoder().encode(request).encode("utf-8")
+    return struct.pack("!Q", len(request_bytes)) + request_bytes
+
+
+class Requester(threading.Thread):
+    def __init__(self, request_map: 'dict', client_address: tuple):
+        super().__init__()
+        self.request_map = request_map
+        self.daemon = True
+        self.client_address = client_address
+        self.responseJson = None
+        pass
+
+    def request(self):
+        with socket.socket(socket.AF_INET, socket.SOCK_STREAM, socket.IPPROTO_TCP) as socket_to_client:
+            socket_to_client.connect(self.client_address)
+            socket_to_client.sendall(generate_request(self.request_map))
+            self.responseJson = JSONDecoder().decode(
+                read_bytes(socket_to_client, struct.unpack('!Q', socket_to_client.recv(8))[0]).decode(
+                    "utf-8"))
+            res.append(self.responseJson)
+        return res
+
+    def get(self):
+        try:
+            return self.request()
+        except:
+            return None
+
+    def run(self) -> None:
+        self.request()
+
+
+if __name__ == '__main__':
+    address = ('127.0.0.1', 7798)
+    address1 = ('127.0.0.1', 7799)
+    my_request = {'request': 'I am asking you...'}
+    my_request1 = {'request1': 'I am asking you...'}
+    res = deque()
+
+    requester = Requester(my_request, address)
+    requester1 = Requester(my_request1, address1)
+    requester1.start()
+    requester.start()
+
+    requester1.join()
+    requester.join()
+    sleep(2)
+    # print(requester1.get())
+    # print(requester.get())
+    print(res)