Source Code for Module park.util.host

 1  # This program is public domain 
 2  """ 
 3  Parse user-host-port string. 
 4  """ 
 5 -class Host(object): 
 6      """ 
 7      Parse a resource locator into user, password, host and port. 
 8   
 9          user:password@host:port 
10   
11      This is a subset of URL, which also includes scheme and path. 
12      """ 
13 -    def __init__(self, value): 
14          user = password = host = '' 
15          port = '0' 
16          if '@' in value: 
17              user,value = value.split('@') 
18              if ':' in user: 
19                  user,password = user.split(':') 
20          if ':' in value: 
21              host,port = value.split(':') 
22          else: 
23              host = value 
24          if host == '': host = 'localhost' 
25          self.user = user 
26          self.password = password 
27          self.host = host 
28          self.port = int(port) 
29 -    def __str__(self): 
30          if self.password: 
31              result = [self.user,':',self.password,'@'] 
32          elif self.user: 
33              result = [self.user,'@'] 
34          else: 
35              result = [] 
36          result.append(host) 
37          if self.port: 
38              result.append(':') 
39              result.append(str(self.port)) 
40          return "".join(result) 
41   
42   
43 -def test(): 
44      h = Host('a') 
45      assert h.user=='' and h.password=='' and h.host=='a' and h.port==0 
46      h = Host('a:4') 
47      assert h.user=='' and h.password=='' and h.host=='a' and h.port==4 
48      h = Host('u@a') 
49      assert h.user=='u' and h.password=='' and h.host=='a' and h.port==0 
50      h = Host('u:p@a') 
51      assert h.user=='u' and h.password=='p' and h.host=='a' and h.port==0 
52      h = Host('u@a:4') 
53      assert h.user=='u' and h.password=='' and h.host=='a' and h.port==4 
54      h = Host('u:p@a:4') 
55      assert h.user=='u' and h.password=='p' and h.host=='a' and h.port==4 
56      h = Host('') 
57      assert h.user=='' and h.password=='' and h.host=='localhost' and h.port==0 
58      h = Host('u@') 
59      assert h.user=='u' and h.password=='' and h.host=='localhost' and h.port==0 
60      h = Host('u@:4') 
61      assert h.user=='u' and h.password=='' and h.host=='localhost' and h.port==4 
62      h = Host('u:p@') 
63      assert h.user=='u' and h.password=='p' and h.host=='localhost' and h.port==0 
64      h = Host('u:p@:4') 
65      assert h.user=='u' and h.password=='p' and h.host=='localhost' and h.port==4 
66   
67  if __name__ == "__main__": test() 
68