Python实现简单的HTTP请求发送
2018-07-20 来源:open-open
代码如下
import socket def clean_host(host): """Remove leading http:// and trailing /path_to_somewhere in host name""" host = host.strip() prefixes = ['http://'] for prefix in prefixes: if host.lower().startswith(prefix): host = host[len(prefix):] slash = host.find('/') if slash>0: host = host[:slash] return host def get_ipv4_list(host, port=80): """Return the list of ips corresponding to given host and port number""" info = socket.getaddrinfo(host, port) return [item[4][0] for item in info] def send_request(ip, data, remote_port=80, local_port=2333, bufsize=1024): """Send data to give ip and receive response from the server""" sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM) sock.connect((ip, remote_port)) sock.send(data) recv_data = [] while True: buf = sock.recv(bufsize) if not buf: break recv_data += [buf] sock.close() return ''.join(recv_data) def read_text(promp='> ', promp2='~ '): """Read in text from stdin terminted by EOF""" text = [] try: while True: if not text: text = [raw_input(promp)+'\n'] else: text += [raw_input(promp2)+'\n'] except EOFError: return ''.join(text) return '' def http_app(): remote_host = raw_input('Input remote host name (for example www.baidu.com): ') remote_port = 80 buf = raw_input('Input remote port number (default 80): ') if buf.isdigit() and 0<=int(buf)<=65535: remote_port = int(buf) print remote_host, 'at port', remote_port print 'Resolving host...' ip_list = get_ipv4_list(clean_host(remote_host), port=remote_port) ip = ip_list[0] print 'Using ip address', ip while True: data = read_text() if not data: break print '[REQUEST]' print data response = send_request(ip, data, remote_port=remote_port) print '[REPONSE]' print response if __name__ == '__main__': print 'Running http_app. Press Ctrl+C to quit' while True: try: http_app() except KeyboardInterrupt: if raw_input('Quit? ').lower() == 'n': break
不过不知道是代码哪里有问题导致返回的全都是Bad Request :(
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