Partially revert d5fc1faf927a ... reintroduce main() interface.0.11.0

Fixes: https://todo.sr.ht/~mcepl/pygn/8

1 files changed, 93 insertions, 5 deletions

diff --git a/src/mail2news.py b/src/mail2news.py
index 6e8fe53..dc05c1d 100644
--- a/src/mail2news.py
+++ b/src/mail2news.py
@@ -14,6 +14,7 @@ Gets news email and sends it via SMTP.
 class mail2news is  hopefully conform to rfc850.
 
 """
+import argparse
 import io
 from collections import OrderedDict
 import email
@@ -31,7 +32,7 @@ import tempfile
 # This is the single source of Truth
 # Yes, it is awkward to have it assymetrically here
 # and not in news2mail as well.
-__version__ = '0.10.3'
+__version__ = '0.11.0'
 __description__ = 'The Python Gateway Script: news2mail mail2news gateway'
 
 
@@ -55,9 +56,14 @@ class mail2news(object):
         self.hostname = gethostbyaddr(gethostname())[0]
 
         self.heads_dict, self.smtpheads, self.nntpheads = {}, {}, {}
-        self.message = self.__readfile(options)
+        if options.input == '':
+            self.message = self.__readfile(options, sys.stdin)
+        else:
+            with open(options.input, 'r') as inp_stream:
+                self.message = self.__readfile(options, inp_stream)
 
-        self.message['X-Gateway'] = 'pyg {0} {1}'.format(VERSION, DESC)
+        self.message['X-Gateway'] = 'pyg {0} {1}'.format(__version__,
+                                                         __description__)
 
     def __add_header(self, header, value, msg=None):
         if msg is None:
@@ -65,8 +71,8 @@ class mail2news(object):
         if value:
             msg[header] = value.strip()
 
-    def __readfile(self, opt):
-        message = email.message_from_file(sys.stdin, policy=email.policy.SMTP)
+    def __readfile(self, opt, input_stream):
+        message = email.message_from_file(input_stream, policy=email.policy.SMTP)
 
         if (len(message) == 0) \
                 and message.get_payload().startswith('/'):
@@ -193,3 +199,85 @@ class mail2news(object):
             logging.exception("Failed to convert message!")
 
         server.quit()
+
+def parse_cmdline(args):
+    parser = argparse.ArgumentParser(
+        description='%s version %s - Copyright 2000 Cosimo Alfarano\n%s' %
+        ('pyg', __version__, __description__))
+
+    parser.add_argument('-s', '--newsserver', default='')
+    parser.add_argument('-a', '--approver', default='',
+                        help="address of moderator/approver")
+    parser.add_argument('-n', '--newsgroup', default='',
+                        help='newsgroup[s] (specified as comma separated ' +
+                        'without spaces list)', required=True)
+    parser.add_argument('-u', '--user', default='',
+                        help='NNTP server user (for authentication)')
+    parser.add_argument('-p', '--password', default='',
+                        help='NNTP server password (for authentication)')
+    parser.add_argument('-P', '--port', default='')
+    parser.add_argument('-e', '--envelope', default='')
+    parser.add_argument('-i', '--input', default='')
+    parser.add_argument('-l', '--logfile')
+
+    parser.add_argument('-T', '--test', action='store_true',
+                        help='test mode (not send article via NNTP)')
+    parser.add_argument('-v', '--verbose', action='store_true',
+                        help='verbose output ' +
+                        '(usefull with -T option for debugging)')
+
+    args = parser.parse_args(args)
+
+    if not args.newsgroup:
+        raise argparse.ArgumentError('Error: Missing Newsgroups\n')
+
+    return args
+
+
+def main(args_in=None):
+    """main is structured in 4 phases:
+        1) check and set pyg's internal variables
+        2) check whitelist for users' permission
+        3) format rfc 822 headers from input article
+        4) open smtp connection and send e-mail
+    """
+    out = ''
+
+    try:
+        """phase 1:
+        check and set pyg's internal variables
+        """
+        if args_in is None:
+            args_in = sys.argv[1:]
+        opt = parse_cmdline(args_in)
+
+        m2n = mail2news(opt)
+        owner = None
+
+        """phase 3:
+        format rfc 822 headers from input article
+        """
+        m2n.renameheads()    # rename useless heads
+        m2n.removeheads()    # remove other heads
+
+        m2n.sortheads()        # sort remaining heads :)
+
+        if opt.verbose:
+            out += m2n.message.as_string() + '\n'
+
+        logging.debug('m2n.payload = len %d', len(m2n.message.get_payload()))
+        if len(m2n.message.get_payload()) > 0:
+    #        wl.logmsg(m2n.heads_dict,wl.ACCEPT,owner)
+            if not opt.test:
+                try:
+                    resp = m2n.sendemail()
+                except nntplib.NNTPError as ex:
+                    logging.exception(ex)
+    except KeyboardInterrupt:
+        logging.error('Keyboard Interrupt')
+        sys.exit(0)
+
+    if opt.input == '':
+        print(out)
+    else:
+        return out