Python socket向百度發送http長連接請求 並做搜索

Python socket向百度發送http長連接請求 並做搜索

1. #coding=gbk
2. '''''
3. socket 給百度發送http請求
5. 連接成功後，發送http的get請求，所搜索功能
7. '''
8. import socket
9. import sys
10. import time
11. if __name__=='__main__':
12. #創建套接字
13. try :
14. sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
15. except socket.eorror,e:
16. print 'socket false:%s'%e
17. print 'socket ...'
19. #連接百度ip
20. try :
21. sock.connect(('220.181.111.148',80))
22. except socket.error,e:
23. print 'connect false %s'%e
24. sock.close()
25. print 'connect ...'
27. #發送百度首頁面請求並且保持連接
28. try :
29. print 'send start...'
30. str='GET / HTTP/1.1\r\nHost:www.baidu.com\r\nConnection:keep-alive\r\n\r\n'
31. sock.send(str)
32. except socket.eorror,e:
33. print 'send false'
34. sock.close()
36. data=''
37. data = sock.recv(1024)
38. while (1): '''''如何判斷數據接收完畢，在發送http 最前端,
39. 包含發送數據文件大小屬性Content-Length，
40. 用字符匹配方式取得文件大小,
41. 同過大小判斷是否接收完畢。
42. '''
43. print data
44. beg = data.find('Content-Length:',0,len(data))
45. end = data.find('Content-Type:',0,len(data))
46. print beg
47. print end
48. if(beg == end):
49. print 'connecting closed'
50. break
51. num = long(data[beg+16:end-2])
52. print num
53. nums = 0
54. while (1):
55. data=sock.recv(1024)
56. print data
57. nums +=len(data)
58. if(nums >= num):
59. break
60. word = raw_input('please input your word----->')
61. str='''''GET /s?wd=''' + word + ''''' HTTP/1.1
62. Host:www.baidu.com
63. Connection: Keep-Alive
65. '''
66. print str
67. sock.send(str)
68. data = ''
69. data = sock.recv(1024)
70. sock.close()
71. print data