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+ id AFC976DA; Mon, 25 Jun 2012 10:14:55 -0700 (PDT)\r
+From: Jameson Graef Rollins <jrollins@finestructure.net>\r
+To: David Belohrad <david@belohrad.ch>, notmuch@notmuchmail.org\r
+Subject: Re: extract attachments from multiple mails\r
+In-Reply-To: <uaxwr2vzkdh.fsf@beesknees.cern.ch>\r
+References: <uaxwr2vzkdh.fsf@beesknees.cern.ch>\r
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+ (x86_64-pc-linux-gnu)\r
+Date: Mon, 25 Jun 2012 10:14:53 -0700\r
+Message-ID: <87obo72u0i.fsf@servo.finestructure.net>\r
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+\r
+--=-=-=\r
+\r
+On Mon, Jun 25 2012, David Belohrad <david@belohrad.ch> wrote:\r
+> someone can give an advice? I have many emails containing\r
+> attachment. This is typically an output of copy-machine, which fragments\r
+> a scan into multiple attachments.\r
+>\r
+> I'd like to extract those attached files in a one batch into a specific\r
+> directory. Is there any way how to programmatically fetch those files?\r
+\r
+notmuch show has a --part option for outputting a single part from a\r
+MIME message. Unfortunately there's currently no clean way to determine\r
+the number of parts in a message. But sort of hackily, you could do\r
+something like:\r
+\r
+for id in $(notmuch search --output=messages tag:files-to-extract); do\r
+ for part in $(seq 1 10); do\r
+ notmuch show --part=$part --format=raw $id > $id.$part\r
+ done\r
+done\r
+\r
+That will also save any multipart parts, which aren't really that\r
+useful, so you'll have to sort through them.\r
+\r
+You can make something much cleaner with python, using the notmuch and\r
+email python bindings:\r
+\r
+http://packages.python.org/notmuch/\r
+http://docs.python.org/library/email-examples.html\r
+\r
+I hacked up something simple below that will extract parts from messages\r
+matching a search term into the current directory (tested).\r
+\r
+hth.\r
+\r
+jamie.\r
+\r
+\r
+#!/usr/bin/env python\r
+\r
+import subprocess\r
+import sys\r
+import os\r
+import notmuch\r
+import email\r
+import errno\r
+import mimetypes\r
+\r
+dbpath = subprocess.check_output(['notmuch', 'config', 'get', 'database.path']).strip()\r
+db = notmuch.Database(dbpath)\r
+query = notmuch.Query(db, sys.argv[1])\r
+for msg in query.search_messages():\r
+ with open(msg.get_filename(), 'r') as f:\r
+ msg = email.message_from_file(f)\r
+ counter = 1\r
+ for part in msg.walk():\r
+ if part.get_content_maintype() == 'multipart': continue\r
+ filename = part.get_filename()\r
+ if not filename:\r
+ ext = mimetypes.guess_extension(part.get_content_type())\r
+ if not ext:\r
+ ext = '.bin'\r
+ filename = 'part-%03d%s' % (counter, ext)\r
+ counter += 1\r
+ print filename\r
+ with open(filename, 'wb') as f:\r
+ f.write(part.get_payload(decode=True))\r
+\r
+--=-=-=\r
+Content-Type: application/pgp-signature\r
+\r
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+-----END PGP SIGNATURE-----\r
+--=-=-=--\r
projects / notmuch-archives.git / commitdiff