From 56d1e3a517981562904113765f2eca361a1c6d19 Mon Sep 17 00:00:00 2001
From: Guido van Rossum <guido@python.org>
Date: Fri, 14 Mar 1997 04:16:54 +0000
Subject: Added Fred Drake's netrc parser class.

---
 Lib/ftplib.py | 100 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 100 insertions(+)

diff --git a/Lib/ftplib.py b/Lib/ftplib.py
index 3ea3a25..4064552 100644
--- a/Lib/ftplib.py
+++ b/Lib/ftplib.py
@@ -542,6 +542,106 @@ def ftpcp(source, sourcename, target, targetname = '', type = 'I'):
 	source.voidresp()
 	target.voidresp()
 
+
+NoFileSpecified = "netrc.NoFileSpecified"
+
+
+class Netrc:
+    __defuser = None
+    __defpasswd = None
+    __defacct = None
+
+    def __init__(self, filename=None):
+	if not filename:
+	    if os.environ.has_key("HOME"):
+		filename = os.path.join(os.environ["HOME"], ".netrc")
+	    else:
+		raise NoFileSpecified, "specify file to load or set $HOME"
+	self.__hosts = {}
+	self.__macros = {}
+	fp = open(filename, "r")
+	in_macro = 0
+	while 1:
+	    line = fp.readline()
+	    if not line: break
+	    if in_macro and string.strip(line):
+		macro_lines.append(line)
+		continue
+	    elif in_macro:
+		self.__macros[macro_name] = tuple(macro_lines)
+		in_macro = 0
+	    words = string.split(line)
+	    host = user = passwd = acct = None
+	    default = 0
+	    i = 0
+	    while i < len(words):
+		w1 = words[i]
+		if i+1 < len(words):
+		    w2 = words[i + 1]
+		else:
+		    w2 = None
+		if w1 == 'default':
+		    default = 1
+		elif w1 == 'machine' and w2:
+		    host = string.lower(w2)
+		    i = i + 1
+		elif w1 == 'login' and w2:
+		    user = w2
+		    i = i + 1
+		elif w1 == 'password' and w2:
+		    passwd = w2
+		    i = i + 1
+		elif w1 == 'account' and w2:
+		    acct = w2
+		    i = i + 1
+		elif w1 == 'macdef' and w2:
+		    macro_name = w2
+		    macro_lines = []
+		    in_macro = 1
+		    break
+		i = i + 1
+	    if default:
+		self.__defuser = user or self.__defuser
+		self.__defpasswd = passwd or self.__defpasswd
+		self.__defacct = acct or self.__defacct
+	    if host:
+		if self.__hosts.has_key(host):
+		    ouser, opasswd, oacct = self.__hosts[host]
+		    user = user or ouser
+		    passwd = passwd or opasswd
+		    acct = acct or oacct
+		self.__hosts[host] = user, passwd, acct
+	fp.close()
+
+    def get_hosts(self):
+	"""Return a list of hosts mentioned in the .netrc file."""
+	return self.__hosts.keys()
+
+    def get_account(self, host):
+	"""Returns login information for the named host.
+
+	The return value is a triple containing userid, password, and the
+	accounting field.
+
+	"""
+	host = string.lower(host)
+	user, passwd, acct = None, None, None
+	if self.__hosts.has_key(host):
+	    user, passwd, acct = self.__hosts[host]
+	user = user or self.__defuser
+	passwd = passwd or self.__defpasswd
+	acct = acct or self.__defacct
+	return user, passwd, acct
+
+    def get_macros(self):
+	"""Return a list of all defined macro names."""
+	return self.__macros.keys()
+
+    def get_macro(self, macro):
+	"""Return a sequence of lines which define a named macro."""
+	return self.__macros[macro]
+
+
 def test():
 	'''Test program.
 	Usage: ftp [-d] host [-l[dir]] [-d[dir]] [-p] [file] ...'''
-- 
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