From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from localhost (localhost [127.0.0.1]) by olra.theworths.org (Postfix) with ESMTP id 99CE6431FB6 for ; Fri, 9 Mar 2012 05:56:37 -0800 (PST) X-Virus-Scanned: Debian amavisd-new at olra.theworths.org X-Spam-Flag: NO X-Spam-Score: 0 X-Spam-Level: X-Spam-Status: No, score=0 tagged_above=-999 required=5 tests=[none] autolearn=disabled Received: from olra.theworths.org ([127.0.0.1]) by localhost (olra.theworths.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id CY6UqosvXWQ7 for ; Fri, 9 Mar 2012 05:56:37 -0800 (PST) Received: from tesseract.cs.unb.ca (tesseract.cs.unb.ca [131.202.240.238]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by olra.theworths.org (Postfix) with ESMTPS id F3179431FAE for ; Fri, 9 Mar 2012 05:56:36 -0800 (PST) Received: from fctnnbsc30w-142166230117.dhcp-dynamic.fibreop.nb.bellaliant.net ([142.166.230.117] helo=zancas.localnet) by tesseract.cs.unb.ca with esmtpsa (TLS1.0:RSA_AES_256_CBC_SHA1:32) (Exim 4.72) (envelope-from ) id 1S60J9-00079K-Ul; Fri, 09 Mar 2012 09:56:36 -0400 Received: from bremner by zancas.localnet with local (Exim 4.77) (envelope-from ) id 1S60J4-00069f-L9; Fri, 09 Mar 2012 09:56:30 -0400 From: David Bremner To: notmuch@notmuchmail.org Subject: [PATCH] mime_node_open: skip envelope from lines at the start of messages Date: Fri, 9 Mar 2012 09:56:26 -0400 Message-Id: <1331301387-23630-1-git-send-email-david@tethera.net> X-Mailer: git-send-email 1.7.9.1 In-Reply-To: References: X-Spam_bar: - Cc: David Bremner X-BeenThere: notmuch@notmuchmail.org X-Mailman-Version: 2.1.13 Precedence: list List-Id: "Use and development of the notmuch mail system." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 09 Mar 2012 13:56:37 -0000 From: David Bremner Some MDAs such as procmail (in MH mode), and exim (doing local delivery in some configurations of the appendfile transport) add a line to the front of a message with "From " followed by envelope sender. Since this is not a proper RFC822 header field, gmime (at least since version 2.6) refuses to parse it, unless in mbox mode. This change reads the line of the file, and if they start with "From ", pass the stream to gmime starting from the second line. This makes mime_node_open more consistent with (but still stricter than) the permissive behaviour of notmuch_file_get_header (message-file.c), which allows a certain number of "broken_headers". We avoid putting gmime into mbox mode in case of side effects; this leaves the situation of mboxes accidentally indexed by notmuch the same as before, namely "undefined behaviour". Ideally they should at least be warned by notmuch-new. Although strict rfc822 adherence would be one way to detect mboxes, it doesn't seem to fit with the spirit or code of message-file.c. --- mime-node.c | 24 ++++++++++++++++++++++++ 1 files changed, 24 insertions(+), 0 deletions(-) diff --git a/mime-node.c b/mime-node.c index a95bdab..cf84423 100644 --- a/mime-node.c +++ b/mime-node.c @@ -72,6 +72,8 @@ mime_node_open (const void *ctx, notmuch_message_t *message, mime_node_context_t *mctx; mime_node_t *root; notmuch_status_t status; + char *first_line=NULL; + size_t first_line_size=0; root = talloc_zero (ctx, mime_node_t); if (root == NULL) { @@ -96,6 +98,23 @@ mime_node_open (const void *ctx, notmuch_message_t *message, goto DONE; } + if (getline(&first_line, &first_line_size, mctx->file) < 0) { + fprintf (stderr, "Failed to read first line from %s: %s\n", + filename, strerror (errno)); + status = NOTMUCH_STATUS_FILE_ERROR; + goto DONE; + } + + if (strcmp (first_line, "From ") != 0) { + /* No envelope from line */ + if (fseek (mctx->file, 0L, SEEK_SET)) { + fprintf (stderr, "Failed to rewind %s: %s\n", + filename, strerror (errno)); + status = NOTMUCH_STATUS_FILE_ERROR; + goto DONE; + } + } + mctx->stream = g_mime_stream_file_new (mctx->file); if (!mctx->stream) { fprintf (stderr, "Out of memory.\n"); @@ -111,7 +130,9 @@ mime_node_open (const void *ctx, notmuch_message_t *message, goto DONE; } + g_mime_parser_set_scan_from (mctx->parser, FALSE); mctx->mime_message = g_mime_parser_construct_message (mctx->parser); + if (!mctx->mime_message) { fprintf (stderr, "Failed to parse %s\n", filename); status = NOTMUCH_STATUS_FILE_ERROR; @@ -136,6 +157,9 @@ mime_node_open (const void *ctx, notmuch_message_t *message, return NOTMUCH_STATUS_SUCCESS; DONE: + if (first_line != NULL) + free (first_line); + talloc_free (root); return status; } -- 1.7.9.1