queue-repair

February 6, 2020 Roberto Puzzanghera3 comments

A toolkit for dealing with the qmail queue directory structure; it can create a new queue, move and properly rename a queue, dynamically change the conf-split value, convert big-todo queues to non-big-todo and vice versa, and repair a corrupted queue.

In case you damage the qmail queue by accident, you will say thanks to this software! But I wish you will never have to use it :-)

Download, patch and install. The patch applied (tx Tony Fung) will get the program python3 compliant.

wget http://pyropus.ca/software/queue-repair/queue-repair-0.9.0.tar.gz
tar xzf queue-repair-0.9.0.tar.gz
cd queue-repair-0.9.0
chown -R root.root .
wget https://notes.sagredo.eu/files/qmail/patches/queue_repair.patch
patch < queue_repair.patch
cp queue_repair.py /usr/local/bin

Usage

Don't forget to stop qmail before using.

# qmailctl stop
# queue-repair --help

queue_repair.py v. 0.9.0
Copyright (C) 2001 Charles Cazabon 
Licensed under the GNU General Public License version 2


Usage:  queue_repair.py [options] [conf-qmail]

Options:
  conf-qmail                    (default:  /var/qmail)
  -t   or --test                Test only; do not modify the filesystem
  -r   or --repair              Repair errors found        (default: test)
  -b   or --bigtodo             Force use of big-todo      (default: auto)
  -n   or --no-bigtodo          Force non-use of big-todo  (default: auto)
  -s N or --split N             Force conf-split of N      (default: auto)
  -c   or --create              Force creation of queue    (default: no)
  --i-want-a-broken-conf-split  Force non-prime conf-split (default: no)
  -h   or --help                This text

 

Comments

queue-repair run by Python 3

Hi Roberto,Since Python 2 shall be retired by April 2020 and the original queue-repair cannot run by Python 3.  I created a patch to make it works and tested to run by Python 3.6.8 on CentOS 8 successfully.  Hope the patch is helpful.

--- queue_repair.py 2003-10-22 23:54:13.000000000 +0800
+++ queue_repair.py.new 2020-01-17 18:21:18.834455813 +0800
@@ -1,4 +1,4 @@
-#!/usr/bin/python
+#!/bin/python3
 '''queue_repair.py - qmail tools in Python.
 Copyright (C) 2001 Charles Cazabon
 
@@ -66,24 +66,24 @@
     #   key: pathname - all paths are relative to conf-qmail
     #   data: (user, group, mode, split)
     #       split is:  0 : no, 1 : yes, -1 : only with big-todo
-    'queue' :           ('qmailq', 'qmail', 0750, 0),
-    'queue/bounce' :    ('qmails', 'qmail', 0700, 0),
-    'queue/info' :      ('qmails', 'qmail', 0700, 1),
-    'queue/intd' :      ('qmailq', 'qmail', 0700, -1),
-    'queue/local' :     ('qmails', 'qmail', 0700, 1),
-    'queue/lock' :      ('qmailq', 'qmail', 0750, 0),
-    'queue/mess' :      ('qmailq', 'qmail', 0750, 1),
-    'queue/pid' :       ('qmailq', 'qmail', 0700, 0),
-    'queue/remote' :    ('qmails', 'qmail', 0700, 1),
-    'queue/todo' :      ('qmailq', 'qmail', 0750, -1),
+    'queue' :           ('qmailq', 'qmail', 0o750, 0),
+    'queue/bounce' :    ('qmails', 'qmail', 0o700, 0),
+    'queue/info' :      ('qmails', 'qmail', 0o700, 1),
+    'queue/intd' :      ('qmailq', 'qmail', 0o700, -1),
+    'queue/local' :     ('qmails', 'qmail', 0o700, 1),
+    'queue/lock' :      ('qmailq', 'qmail', 0o750, 0),
+    'queue/mess' :      ('qmailq', 'qmail', 0o750, 1),
+    'queue/pid' :       ('qmailq', 'qmail', 0o700, 0),
+    'queue/remote' :    ('qmails', 'qmail', 0o700, 1),
+    'queue/todo' :      ('qmailq', 'qmail', 0o750, -1),
 }
 
 nondirs = {
     # Files to check; format is:
     #   key: pathname - all paths are relative to conf-qmail
     #   data: (user, group, mode)
-    'queue/lock/sendmutex' :    ('qmails', 'qmail', 0600),
-    'queue/lock/tcpto' :        ('qmailr', 'qmail', 0644),
+    'queue/lock/sendmutex' :    ('qmails', 'qmail', 0o600),
+    'queue/lock/tcpto' :        ('qmailr', 'qmail', 0o644),
 }
 
 
@@ -105,7 +105,7 @@
     while i <= max:
         for p in primelist:
             if (i % p == 0) or (p * p > i): break
-        if (i % p <> 0):
+        if (i % p != 0):
             primelist.append(i)
             if i >= min:
                 result.append(i)
@@ -151,8 +151,8 @@
     '''
     global users, groups
     msg('finding qmail UIDs/GIDs...')
-    us = users.keys()
-    gs = groups.keys()
+    us = list(users.keys())
+    gs = list(groups.keys())
     for u in us:
         if users[u]:
             # Handle case of someone else determining UIDs for us
@@ -182,7 +182,7 @@
     that it has octal mode mode.  If testmode is set, create path if it
     doesn't exist.
     '''
-    if checked_dir.has_key(path):
+    if path in checked_dir:
         return
     msg('  checking directory %s...' % path)
     if not os.path.exists(path):
@@ -208,7 +208,7 @@
 
     Verify path is owned by user:group, and make it so if testmode is not set.
     '''
-    if checked_owner.has_key(path):
+    if path in checked_owner:
         return
     uid = users[user]
     gid = groups[group]
@@ -223,7 +223,7 @@
                 msg('  fixed, %s ownership %i:%i' % (path, s[ST_UID], s[ST_GID]))
             else:
                 msg('  testmode, not fixing')
-    except OSError, o:
+    except OSError as o:
         err(o or '[no error message]')
     checked_owner[path] = None
 
@@ -233,7 +233,7 @@
 
     Verify path has mode mode, and make it so if testmode is not set.
     '''
-    if checked_mode.has_key(path):
+    if path in checked_mode:
         return
     try:
         s = os.stat(path)
@@ -247,7 +247,7 @@
                 msg('  changed %s mode to %o' % (path, newmode))
             else:
                 msg('  testmode, not fixing')
-    except OSError, o:
+    except OSError as o:
         err(o or '[no error message]')
     checked_mode[path] = None
 
@@ -259,7 +259,7 @@
     '''
     splits = []
     msg('determining conf-split...')
-    for (path, (user, group, mode, is_split)) in dirs.items():
+    for (path, (user, group, mode, is_split)) in list(dirs.items()):
         if is_split != 1:
             continue
         highest = 0
@@ -311,7 +311,7 @@
         else:
             msg('  found unexpected direntry %s' % p)
 
-    if splits == range(split):
+    if splits == list(range(split)):
         # big-todo apparently in use
         bigtodo = 1
         msg('  big-todo found')
@@ -330,14 +330,14 @@
     Verify ownership, mode, and contents of each queue directory in paths.
     '''
     msg('checking main queue directories...')
-    _dirs = paths.keys()
+    _dirs = list(paths.keys())
     _dirs.sort()
     for path in _dirs:
         (user, group, mode, is_split) = paths[path]
         check_dir(path, user, group, mode)
 
     msg('checking split sub-directories...')
-    for (path, (user, group, mode, is_split)) in paths.items():
+    for (path, (user, group, mode, is_split)) in list(paths.items()):
         if path in ('queue', 'queue/lock'):
             # Nothing in these directories to check at this point
             continue
@@ -345,7 +345,7 @@
         if not this_split:
             splits = []
         else:
-            splits = range(split)
+            splits = list(range(split))
             for i in splits:
                 splitpath = os.path.join(path, str(i))
                 check_dir(splitpath, user, group, mode)
@@ -428,7 +428,7 @@
     Verify ownership and mode of each queue file in paths.
     '''
     msg('checking files...')
-    for (path, (user, group, mode)) in paths.items():
+    for (path, (user, group, mode)) in list(paths.items()):
         if os.path.exists(path):
             if not os.path.isfile(path):
                 msg('  %s is not a file' % path)
@@ -467,7 +467,7 @@
     if not os.path.exists(path) and not testmode:
         os.mkfifo(path)
     chown(path, user, group)
-    chmod(path, 0622)
+    chmod(path, 0o622)
 
 #######################################
 def check_messages(path, split):
@@ -516,7 +516,7 @@
     check_messages().  Correct split sub-directory location as well.
     '''
     msg('fixing misnamed messages...')
-    for (path, (user, junk, junk, is_split)) in paths.items():
+    for (path, (user, junk, junk, is_split)) in list(paths.items()):
         for (oldhash, oldno, newno) in misnamed:
             if not is_splitdir(is_split, bigtodo):
                 old_p = os.path.join(path, str(oldno))
@@ -544,17 +544,17 @@
     of all files found.
     '''
     msg('checking split locations...')
-    for (path, (user, group, junk, is_split)) in paths.items():
+    for (path, (user, group, junk, is_split)) in list(paths.items()):
         if path in ('queue', 'queue/lock'):
             # Nothing in these directories to check at this point
             continue
         elif path in ('queue/mess', 'queue/todo'):
-            mode = 0644
+            mode = 0o644
         else:
-            mode = 0600
+            mode = 0o600
         this_split = is_splitdir(is_split, bigtodo)
         if this_split:
-            splits = range(split)
+            splits = list(range(split))
         else:
             splits = ['']
         for splitval in splits:
@@ -635,7 +635,7 @@
     wd = os.getcwd()
     try:
         os.chdir(qmaildir)
-    except StandardError:
+    except Exception:
         err('failed to chdir to %s' % qmaildir)
 
     if testmode:
@@ -747,7 +747,7 @@
                     if force_split < 1:
                         raise ValueError
                 except ValueError:
-                    raise getopt.error, 'split value must be a positive integer (%s)' % value
+                    raise getopt.error('split value must be a positive integer (%s)' % value)
             elif option in ('-n', '--no-bigtodo'):
                 force_bigtodo = -1
             elif option in ('-b', '--bigtodo'):
@@ -765,10 +765,10 @@
                 create = 1
         if args:
             if len(args) > 1:
-                raise getopt.error, 'conf-qmail must be a single argument (%s)' % string.join(args)
+                raise getopt.error('conf-qmail must be a single argument (%s)' % string.join(args))
             qmaildir = args[0]
 
-    except getopt.error, o:
+    except getopt.error as o:
         err('Error:  %s' % o, showhelp=1)
 
     check_queue(qmaildir, test, force_split, force_bigtodo, create, mathishard)
@@ -776,3 +776,4 @@
 #######################################
 if __name__ == '__main__':
     main()
+

 

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queue-repair run by Python 3

It seems to work with both v.2 and v.3 of python. Applied! Thank you.

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queue-repair run by Python 3

Thank you. Very much appreciated. I'll check it out

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