三次登录，增删改查

python 作业

 

1.增删改查haproxy.conf配置文件

1.查询输入：www.oldboy1.com

2.删除输入：{'backend': 'www.oldboy2.org','record':{'server': ["1.1.1.1","2.2.2.2"],'weight': 20,'maxconn': 30}}

3.增加输入：{'backend': 'www.oldboy2.org','record':{'server': ["1.1.1.1","2.2.2.2"],'weight': 20,'maxconn': 30}}

4.修改输入：{'backend': 'www.oldboy2.org','record':{'server': ["1.1.1.1","2.2.2.2"],'weight': 20,'maxconn': 30}}

　修改之后：{'backend': 'www.oldboy2.org','record':{'server': ["1.1.1.1","2.2.2.2"],'weight': 20,'maxconn': 30}}

1 global
 2         log 127.0.0.1 local2
 3         daemon
 4         maxconn 256
 5         log 127.0.0.1 local2 info
 6 
 7 defaults
 8         log global
 9         mode http
10         timeout connect 5000ms
11         timeout client 50000ms
12         timeout server 50000ms
13         option  dontlognull
14 
15 listen  stats :8888
16         stats enable
17         stats uri       /admin
18         stats auth      admin:1234
19 
20 frontend oldboy.org
21          bind 0.0.0.0:80
22          option httplog
23          option httpclose
24          option  forwardfor
25          log global
26          acl www hdr_reg(host) -i www.oldboy.org
27          use_backend www.oldboy.org if www
28 
29 backend www.oldboy1.org
30         server 100.1.7.9 weight 20 maxconn 1111111
31         server 100.1.7.9 weight 20 maxconn 0
32         server 10.10.0.10 10.10.0.10 weight 9999 maxconn 33
33         server 10.10.10.1 10.10.10.1 weight 22   maxconn 2000
34         server 2.2.2.4 2.2.2.4       weight 20   maxconn 3000
35 
36 backend www.oldboy2.org
37         server 1.1.1.1 2.2.2.2 weight 20 maxconn 30
38         server 10.10.0.10 10.10.0.10 weight 9999 maxconn 33
39         server 10.10.10.1 10.10.10.1 weight 22   maxconn 2000
40 
41 backend www.oldboy20.org
42         server 10.10.0.10 10.10.0.10 weight 9999 maxconn 33
复制代码

1 import os
  2 
  3 
  4 def menu():
  5     menu = (
  6         """
  7         1. 增加
  8         2. 删除
  9         3. 修改
 10         4. 查找""")
 11     print(menu.lstrip('
'))
 12 
 13 def InsertConf():
 14     content = eval(input("please input content："))
 15     server1 = content["record"]["server"][0]
 16     server2 = content["record"]["server"][1]
 17     weight = content["record"]["weight"]
 18     maxconn = content["record"]["maxconn"]
 19     with open("hafile",mode="r",encoding="utf8") as f,open("hafile.bak",mode="w+",encoding="utf8") as f_bak:
 20         for line in f:
 21             if line.startswith("backend") and content["backend"] in line:
 22                 f_bak.write(line)
 23                 f_bak.write("        server %s %s weight %d maxconn %d
" % (server1,server2, weight, maxconn))
 24                 continue
 25             f_bak.write(line)
 26         os.rename("hafile","hafile.obj")
 27         os.rename("hafile.bak","hafile")
 28 
 29 def DeleteConf():
 30     flag = False
 31     choice = eval(input("input content"))
 32     with open("hafile", encoding="utf8") as f_read, open("hafile.bak", mode="w", encoding="utf8") as f_write:
 33         for line in f_read:
 34             if line.startswith("backend") and choice["backend"] in line:
 35                 flag = True
 36             if choice["record"]["server"][0] in line 
 37                     and choice["record"]["server"][1] in line 
 38                     and str(choice["record"]["weight"]) in line 
 39                     and str(choice["record"]["maxconn"]) in line 
 40                     and flag == True:
 41                 flag = False
 42                 continue
 43             f_write.write(line)
 44         os.rename("hafile","hafile.obj")
 45         os.rename("hafile.bak","hafile")
 46 
 47 def UpdateConf():
 48     flag = False
 49     Original = eval(input("input Original content"))
 50     Modified = eval(input("input Modified content"))
 51     Modified = "		server %s %s weight %s maxconn %s
" % (Modified["record"]["server"][0],
 52                                                           Modified["record"]["server"][1], 
 53                                                           Modified["record"]["weight"], 
 54                                                           Modified["record"]["maxconn"])
 55     with open("hafile", encoding="utf8") as f_read, open("hafile.bak", mode="w", encoding="utf8") as f_write:
 56         for line in f_read:
 57             if line.startswith("backend") and Original["backend"] in line:
 58                 flag = True
 59                 print(line)
 60             if Original["record"]["server"][0] in line 
 61                     and Original["record"]["server"][1] in line 
 62                     and str(Original["record"]["weight"]) in line 
 63                     and str(Original["record"]["maxconn"]) in line 
 64                     and flag == True:
 65                 flag = False
 66                 f_write.write(Modified)
 67                 continue
 68             f_write.write(line)
 69 def FindConf():
 70     recode = []
 71     flag = False
 72     ipname = input("please input domain name：")
 73     with open("hafile",mode="r",encoding="utf8") as f:
 74         for line in f:
 75             if line.startswith("backend") and ipname in line:
 76                 flag = True
 77                 continue
 78             if line.startswith("backend")and flag == True:
 79                 break
 80             if flag:
 81                 recode.append(line.strip())
 82         for value in recode:
 83             print("	%s"%(value.rstrip()))
 84 
 85 def Main():
 86     menu()
 87     choice = int(input("input number:"))
 88     return choice
 89 
 90 if __name__ == "__main__":
 91     while True:
 92         obj = Main()
 93         if obj == 1:
 94             InsertConf()
 95         elif obj ==2:
 96             DeleteConf()
 97         elif obj == 3:
 98             UpdateConf()
 99         elif obj == 4:
100             FindConf()
101         else:
102             continue

2.用户认证

　用户输入账号密码三次错误，程序终止

　如果三次都是同一用户错误，锁定用户

1	1.定义一个字典，用户每次错误向字典增加记录{name count},当用户输入错误3次退出时，      判断字典的值是否大于3，大于3写到锁定文件

1 alex      alex3417
2 oldboy    oldboy110
3 oldgirl   oldgirl110

1 accounts = {}
 2 
 3 def lock_user(name):
 4     with open("lock_user", mode="r+", encoding="utf8") as f_lock:
 5         for line in f_lock:
 6             if line.strip().split()[0] == name:
 7                 print("Lock user")
 8                 exit()
 9 
10 def lockd_user(**kwargs):
11     with open("lock_user",mode="a+",encoding="utf8") as f_lockd_user:
12         for key in kwargs:
13             if kwargs[key] >2:
14                  f_lockd_user.write(key + "
")
15 
16 
17 
18 
19 def check_user(name,passwd):
20     with open("user",mode="r",encoding="utf8") as f_check:
21         for line in f_check:
22             if name == line.strip().split()[0]:
23                 if passwd == line.strip().split()[1]:
24                     print("Success")
25                     exit()
26                 else:
27                     add_error(name)
28                     return name
29         return name
30 
31 def add_error(name):
32     if accounts:
33         if name in accounts:
34             accounts[name] += 1
35         else:
36             accounts[name] = 1
37     else:
38         accounts[name] = 1
39 
40 def main():
41     count = 0
42     while True:
43         name = input("input name: ")
44         passwd = input("input passwd: ")
45         lock_user(name)    #判断用户是否锁定
46         name = check_user(name,passwd)       #判断用户
47         count += 1
48         if count > 2:
49             lockd_user(**accounts)
50             print("exit than three")
51             break
52 
53 
54 if __name__ == '__main__':
55         main()
复制代码