I was trying to restore email from local thunderbird download data.
None of the script I found could work.
This script is modified from
superuser.com/questions/105653/how-to-convert-mboxo-mboxrd-to-mboxcl-mboxcl2
Which works for me, using this script I could use doveadm import to
restore my INBOX(I don't know how to restore the Sent mailbox).
If this script is useful, I would rewrite one for python3 and
following the mboxrd spec.
Signed-off-by: Randy Li <ay...@soulik.info>
---
mailman2mbox.py | 111 ++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 111 insertions(+)
create mode 100755 mailman2mbox.py
diff --git a/mailman2mbox.py b/mailman2mbox.py
new file mode 100755
index 0000000..1a154b7
--- /dev/null
+++ b/mailman2mbox.py
@@ -0,0 +1,111 @@
+#!/usr/bin/env python2
+"""
+Usage: ./mailman2mbox.py infile outfile default-to-address
+"""
+import sys
+from time import strftime,strptime,mktime,asctime
+from email.utils import parseaddr,formatdate
+
+if len(sys.argv) not in (3,4):
+ print __doc__
+ sys.exit()
+
+out = open(sys.argv[2],"w")
+listid = None
+if len(sys.argv)==4:
+ listid = sys.argv[3]
+
+date_patterns = ("%b %d %H:%M:%S %Y", "%d %b %H:%M:%S %Y", "%d %b %Y
%H:%M:%S", "%d %b %H:%M:%S", "%d %b %y %H:%M:%S", "%d %b %Y
%H.%M.%S",'%m/%d/%y %H:%M:%S %p')
+
+class HeaderError(TypeError):
+ pass
+
+
+def finish(headers, body):
+ body.append("\n")
+ for n,ln in enumerate(headers):
+ if ln.startswith("Date:"):
+ break
+ else:
+ raise HeaderError("No 'Date:' header:\n" + "".join(headers)+"\n")
+ if listid is not None:
+ for ln2 in headers:
+ if ln2.lower().startswith("list-id:"):
+ break
+ else:
+ headers.append("List-Id: <%s>\n" % (listid,))
+ date_line = ln[5:].strip()
+ if date_line.endswith(')'):
+ date_line = date_line[:date_line.rfind('(')].rstrip()
+ if date_line[-5] in "+-":
+ date_line, tz = date_line[:-5].rstrip(), int(date_line[-5:])//100
+ else:
+ tz = -5
+ if date_line[:3] in ("Mon","Tue","Wed","Thu","Fri","Sat","Sun"):
+ if date_line[3:5] == ', ':
+ prefix = "%a, "
+ elif date_line[3] == ',':
+ prefix = "%a,"
+ else:
+ prefix = "%a "
+ else:
+ prefix = ""
+ while True:
+ for p in date_patterns:
+ try:
+ date_struct = strptime(date_line, prefix+p)
+ except ValueError:
+ pass
+ else:
+ break
+ else:
+ if not date_line:
+ raise ValueError(headers[n])
+ date_line = date_line[:date_line.rfind(' ')]
+ continue
+ break
+
+ date_struct = list(date_struct)
+ try:
+ headers[n] = 'Date: %s\n' % (formatdate(mktime(date_struct),True))
+ headers[0] = "From %s %s\n" % (headers[0][:-25].rstrip(),
asctime(date_struct), )
+ except ValueError:
+ raise ValueError(headers[n])
+
+ for w in headers, body:
+ for s in w:
+ out.write(s)
+
+
+message = 0
+headers, body = None, None
+for line in open(sys.argv[1]):
+ if line.startswith("From "):
+ message+=1
+ header = True
+ if headers is not None:
+ try:
+ finish(headers, body)
+ except HeaderError:
+ message -= 1
+ out.write('>')
+ for w in headers, body:
+ for s in w:
+ out.write(s)
+ headers, body = [], []
+ line = line.replace(" at ", "@")
+ elif line == '\n':
+ header = False
+ elif header and line.startswith('From:'):
+ line = line.replace(" at ","@")
+ (headers if header else body).append(line)
+
+try:
+ finish(headers, body)
+except HeaderError:
+ out.write('>')
+ for w in headers, body:
+ for s in w:
+ out.write(s)
+
+out.close()
--
2.40.1
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