1 files changed, 104 insertions, 0 deletions

diff --git a/Mailman/smtplib.py b/Mailman/smtplib.py
new file mode 100644
index 000000000..db6e3e254
--- /dev/null
+++ b/Mailman/smtplib.py
@@ -0,0 +1,104 @@
+# A quick hack. Talk to the SMTP port.
+# Right now this isn't very functional.
+# A lot of functionality was borrowed directly from ftplib...
+# John Viega (viega@list.org)
+
+# >>> from smtplib import *
+# >>> s = SmtpConnection('list.org')
+# >>> s.helo('adder.cs.virginia.edu')
+# >>> s.send(to='viega@list.org', frm='jtv2j@cs.virginia.edu', text='hello, world!')
+# >>> s.quit()
+
+from socket import *
+import string
+
+SMTP_PORT = 25
+
+CRLF = '\r\n'
+
+# Exception raised when an error or invalid response is received
+error_reply = 'smtplib.error_reply'	# unexpected [123]xx reply
+error_temp = 'smtplib.error_temp'	# 4xx errors
+error_perm = 'smtplib.error_perm'	# 5xx errors
+error_proto = 'smtplib.error_proto'	# response does not begin with [1-5]
+
+class SmtpConnection:
+    def __init__(self, host=''):
+	self.host = host
+	self._file = None
+	self.connect()
+
+    def connect(self):
+	self._sock = socket(AF_INET, SOCK_STREAM)
+	self._sock.connect(self.host, SMTP_PORT)
+	self._file = self._sock.makefile('r')
+	self.getresp()
+
+    def helo(self, host):
+	self._sock.send('HELO %s\r\n' % host)
+	self.getresp()
+
+    def quit(self):
+	self._sock.send('QUIT\r\n')
+	self.getresp()
+
+    # text should be \n at eol, we'll add the \r.
+    def send(self, to, frm, text, headers=None):
+	if headers:
+	    hlines = string.split(headers, '\n')
+	lines  = string.split(text, '\n')
+	self._sock.send('MAIL FROM: %s\r\n' % frm)
+	self.getresp()
+	self._sock.send('RCPT TO: %s\r\n' % to)
+	self.getresp()
+	self._sock.send('DATA\r\n')
+	self.getresp()
+	if headers:
+	    for line in hlines:
+		self._sock.send(line + '\r\n')
+	    self._sock.send('\r\n')
+	for line in lines:
+	    if line == '.': line = '..'
+	    self._sock.send(line + '\r\n')
+	self._sock.send('.\r\n')
+	self.getresp()
+
+# Private crap from here down.
+    def getline(self):
+	line = self._file.readline()
+	if not line: raise EOFError
+	if line[-2:] == CRLF: line = line[:-2]
+	elif line[-1:] in CRLF: line = line[:-1]
+	return line
+
+    # Internal: get a response from the server, which may possibly
+    # consist of multiple lines.  Return a single string with no
+    # trailing CRLF.  If the response consists of multiple lines,
+    # these are separated by '\n' characters in the string
+    def getmultiline(self):
+	line = self.getline()
+	if line[3:4] == '-':
+	    code = line[:3]
+	    while 1:
+		nextline = self.getline()
+		line = line + ('\n' + nextline)
+		if nextline[:3] == code and \
+		   nextline[3:4] <> '-':
+		    break
+	return line
+
+    def getresp(self):
+	resp = self.getmultiline()
+	self.lastresp = resp[:3]
+	c = resp[:1]
+	if c == '4':
+	    raise error_temp, resp
+	if c == '5':
+	    raise error_perm, resp
+	if c not in '123':
+	    raise error_proto, resp
+	return resp
+	
+
+
+