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- # Module and documentation by Eric S. Raymond, 21 Dec 1998
-
- import sys, os, string, shlex
-
- class netrc:
- def __init__(self, file=None):
- if not file:
- file = os.path.join(os.environ['HOME'], ".netrc")
- try:
- fp = open(file)
- except:
- return None
- self.hosts = {}
- self.macros = {}
- lexer = shlex.shlex(fp)
- lexer.wordchars = lexer.wordchars + '.'
- while 1:
- # Look for a machine, default, or macdef top-level keyword
- toplevel = tt = lexer.get_token()
- if tt == '' or tt == None:
- break
- elif tt == 'machine':
- entryname = lexer.get_token()
- elif tt == 'default':
- entryname = 'default'
- elif tt == 'macdef': # Just skip to end of macdefs
- entryname = lexer.get_token()
- self.macros[entryname] = []
- lexer.whitepace = ' \t'
- while 1:
- line = lexer.instream.readline()
- if not line or line == '\012' and tt == '\012':
- lexer.whitepace = ' \t\r\n'
- break
- tt = line
- self.macros[entryname].append(line)
- else:
- raise SyntaxError, "bad toplevel token %s, file %s, line %d" \
- % (tt, file, lexer.lineno)
-
- # We're looking at start of an entry for a named machine or default.
- if toplevel == 'machine':
- login = account = password = None
- self.hosts[entryname] = {}
- while 1:
- tt = lexer.get_token()
- if tt=='' or tt == 'machine' or tt == 'default' or tt == 'macdef':
- if toplevel == 'macdef':
- break;
- elif login and password:
- self.hosts[entryname] = (login, account, password)
- lexer.push_token(tt)
- break
- else:
- raise SyntaxError, "malformed %s entry %s terminated by %s" % (toplevel, entryname, repr(tt))
- elif tt == 'login' or tt == 'user':
- login = lexer.get_token()
- elif tt == 'account':
- account = lexer.get_token()
- elif tt == 'password':
- password = lexer.get_token()
- else:
- raise SyntaxError, "bad follower token %s, file %s, line %d"%(tt,file,lexer.lineno)
-
- def authenticators(self, host):
- "Return a (user, account, password) tuple for given host."
- if self.hosts.has_key(host):
- return self.hosts[host]
- elif self.hosts.has_key('default'):
- return self.hosts['default']
- else:
- return None
-
- def __repr__(self):
- "Dump the class data in the format of a .netrc file"
- rep = ""
- for host in self.hosts.keys():
- attrs = self.hosts[host]
- rep = rep + "machine "+ host + "\n\tlogin " + repr(attrs[0]) + "\n"
- if attrs[1]:
- rep = rep + "account " + repr(attrs[1])
- rep = rep + "\tpassword " + repr(attrs[2]) + "\n"
- for macro in self.macros.keys():
- rep = rep + "macdef " + macro + "\n"
- for line in self.macros[macro]:
- rep = rep + line
- rep = rep + "\n"
- return rep
-
- if __name__ == '__main__':
- print netrc()
-
-