1 /* notmuch - Not much of an email program, (just index and search)
3 * Copyright © 2009 Carl Worth
4 * Copyright © 2009 Keith Packard
6 * This program is free software: you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation, either version 3 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program. If not, see http://www.gnu.org/licenses/ .
19 * Authors: Carl Worth <cworth@cworth.org>
20 * Keith Packard <keithp@keithp.com>
23 #include "notmuch-client.h"
24 #include "gmime-filter-reply.h"
25 #include "gmime-filter-headers.h"
28 reply_headers_message_part (GMimeMessage *message);
31 reply_part_content (GMimeObject *part);
33 static const notmuch_show_format_t format_reply = {
36 "", NULL, reply_headers_message_part, ">\n",
50 show_reply_headers (GMimeMessage *message)
52 GMimeStream *stream_stdout = NULL, *stream_filter = NULL;
54 stream_stdout = g_mime_stream_file_new (stdout);
56 g_mime_stream_file_set_owner (GMIME_STREAM_FILE (stream_stdout), FALSE);
57 stream_filter = g_mime_stream_filter_new(stream_stdout);
59 g_mime_stream_filter_add(GMIME_STREAM_FILTER(stream_filter),
60 g_mime_filter_headers_new());
61 g_mime_object_write_to_stream(GMIME_OBJECT(message), stream_filter);
62 g_object_unref(stream_filter);
64 g_object_unref(stream_stdout);
69 reply_headers_message_part (GMimeMessage *message)
71 InternetAddressList *recipients;
72 const char *recipients_string;
74 printf ("> From: %s\n", g_mime_message_get_sender (message));
75 recipients = g_mime_message_get_recipients (message, GMIME_RECIPIENT_TYPE_TO);
76 recipients_string = internet_address_list_to_string (recipients, 0);
77 if (recipients_string)
80 recipients = g_mime_message_get_recipients (message, GMIME_RECIPIENT_TYPE_CC);
81 recipients_string = internet_address_list_to_string (recipients, 0);
82 if (recipients_string)
85 printf ("> Subject: %s\n", g_mime_message_get_subject (message));
86 printf ("> Date: %s\n", g_mime_message_get_date_as_string (message));
91 reply_part_content (GMimeObject *part)
93 GMimeContentType *content_type = g_mime_object_get_content_type (GMIME_OBJECT (part));
94 GMimeContentDisposition *disposition = g_mime_object_get_content_disposition (part);
96 if (g_mime_content_type_is_type (content_type, "multipart", "*") ||
97 g_mime_content_type_is_type (content_type, "message", "rfc822"))
99 /* Output nothing, since multipart subparts will be handled individually. */
101 else if (g_mime_content_type_is_type (content_type, "application", "pgp-encrypted") ||
102 g_mime_content_type_is_type (content_type, "application", "pgp-signature"))
104 /* Ignore PGP/MIME cruft parts */
106 else if (g_mime_content_type_is_type (content_type, "text", "*") &&
107 !g_mime_content_type_is_type (content_type, "text", "html"))
109 GMimeStream *stream_stdout = NULL, *stream_filter = NULL;
110 GMimeDataWrapper *wrapper;
113 charset = g_mime_object_get_content_type_parameter (part, "charset");
114 stream_stdout = g_mime_stream_file_new (stdout);
116 g_mime_stream_file_set_owner (GMIME_STREAM_FILE (stream_stdout), FALSE);
117 stream_filter = g_mime_stream_filter_new(stream_stdout);
119 g_mime_stream_filter_add(GMIME_STREAM_FILTER(stream_filter),
120 g_mime_filter_charset_new(charset, "UTF-8"));
123 g_mime_stream_filter_add(GMIME_STREAM_FILTER(stream_filter),
124 g_mime_filter_reply_new(TRUE));
125 wrapper = g_mime_part_get_content_object (GMIME_PART (part));
126 if (wrapper && stream_filter)
127 g_mime_data_wrapper_write_to_stream (wrapper, stream_filter);
129 g_object_unref(stream_filter);
131 g_object_unref(stream_stdout);
136 strcmp (disposition->disposition, GMIME_DISPOSITION_ATTACHMENT) == 0)
138 const char *filename = g_mime_part_get_filename (GMIME_PART (part));
139 printf ("Attachment: %s (%s)\n", filename,
140 g_mime_content_type_to_string (content_type));
144 printf ("Non-text part: %s\n",
145 g_mime_content_type_to_string (content_type));
150 /* Is the given address configured as one of the user's "personal" or
151 * "other" addresses. */
153 address_is_users (const char *address, notmuch_config_t *config)
159 primary = notmuch_config_get_user_primary_email (config);
160 if (strcasecmp (primary, address) == 0)
163 other = notmuch_config_get_user_other_email (config, &other_len);
164 for (i = 0; i < other_len; i++)
165 if (strcasecmp (other[i], address) == 0)
171 /* Scan addresses in 'list'.
173 * If 'message' is non-NULL, then for each address in 'list' that is
174 * not configured as one of the user's addresses in 'config', add that
175 * address to 'message' as an address of 'type'.
177 * If 'user_from' is non-NULL and *user_from is NULL, *user_from will
178 * be set to the first address encountered in 'list' that is the
181 * Return the number of addresses added to 'message'. (If 'message' is
182 * NULL, the function returns 0 by definition.)
185 scan_address_list (InternetAddressList *list,
186 notmuch_config_t *config,
187 GMimeMessage *message,
188 GMimeRecipientType type,
189 const char **user_from)
191 InternetAddress *address;
195 for (i = 0; i < internet_address_list_length (list); i++) {
196 address = internet_address_list_get_address (list, i);
197 if (INTERNET_ADDRESS_IS_GROUP (address)) {
198 InternetAddressGroup *group;
199 InternetAddressList *group_list;
201 group = INTERNET_ADDRESS_GROUP (address);
202 group_list = internet_address_group_get_members (group);
203 if (group_list == NULL)
206 n += scan_address_list (group_list, config, message, type, NULL);
208 InternetAddressMailbox *mailbox;
212 mailbox = INTERNET_ADDRESS_MAILBOX (address);
214 name = internet_address_get_name (address);
215 addr = internet_address_mailbox_get_addr (mailbox);
217 if (address_is_users (addr, config)) {
218 if (user_from && *user_from == NULL)
220 } else if (message) {
221 g_mime_message_add_recipient (message, type, name, addr);
230 /* Scan addresses in 'recipients'.
232 * See the documentation of scan_address_list() above. This function
233 * does exactly the same, but converts 'recipients' to an
234 * InternetAddressList first.
237 scan_address_string (const char *recipients,
238 notmuch_config_t *config,
239 GMimeMessage *message,
240 GMimeRecipientType type,
241 const char **user_from)
243 InternetAddressList *list;
245 if (recipients == NULL)
248 list = internet_address_list_parse_string (recipients);
252 return scan_address_list (list, config, message, type, user_from);
255 /* Does the address in the Reply-To header of 'message' already appear
256 * in either the 'To' or 'Cc' header of the message?
259 reply_to_header_is_redundant (notmuch_message_t *message)
261 const char *reply_to, *to, *cc, *addr;
262 InternetAddressList *list;
263 InternetAddress *address;
264 InternetAddressMailbox *mailbox;
266 reply_to = notmuch_message_get_header (message, "reply-to");
267 if (reply_to == NULL || *reply_to == '\0')
270 list = internet_address_list_parse_string (reply_to);
272 if (internet_address_list_length (list) != 1)
275 address = internet_address_list_get_address (list, 0);
276 if (INTERNET_ADDRESS_IS_GROUP (address))
279 mailbox = INTERNET_ADDRESS_MAILBOX (address);
280 addr = internet_address_mailbox_get_addr (mailbox);
282 to = notmuch_message_get_header (message, "to");
283 cc = notmuch_message_get_header (message, "cc");
285 if ((to && strstr (to, addr) != 0) ||
286 (cc && strstr (cc, addr) != 0))
294 /* Augments the recipients of reply from the headers of message.
296 * If any of the user's addresses were found in these headers, the first
297 * of these returned, otherwise NULL is returned.
300 add_recipients_from_message (GMimeMessage *reply,
301 notmuch_config_t *config,
302 notmuch_message_t *message)
306 const char *fallback;
307 GMimeRecipientType recipient_type;
309 { "reply-to", "from", GMIME_RECIPIENT_TYPE_TO },
310 { "to", NULL, GMIME_RECIPIENT_TYPE_TO },
311 { "cc", NULL, GMIME_RECIPIENT_TYPE_CC },
312 { "bcc", NULL, GMIME_RECIPIENT_TYPE_BCC }
314 const char *from_addr = NULL;
317 /* Some mailing lists munge the Reply-To header despite it being A Bad
318 * Thing, see http://www.unicom.com/pw/reply-to-harmful.html
320 * The munging is easy to detect, because it results in a
321 * redundant reply-to header, (with an address that already exists
322 * in either To or Cc). So in this case, we ignore the Reply-To
323 * field and use the From header. This ensures the original sender
324 * will get the reply even if not subscribed to the list. Note
325 * that the address in the Reply-To header will always appear in
328 if (reply_to_header_is_redundant (message)) {
329 reply_to_map[0].header = "from";
330 reply_to_map[0].fallback = NULL;
333 for (i = 0; i < ARRAY_SIZE (reply_to_map); i++) {
334 const char *recipients;
336 recipients = notmuch_message_get_header (message,
337 reply_to_map[i].header);
338 if ((recipients == NULL || recipients[0] == '\0') && reply_to_map[i].fallback)
339 recipients = notmuch_message_get_header (message,
340 reply_to_map[i].fallback);
342 scan_address_string (recipients, config, reply,
343 reply_to_map[i].recipient_type, &from_addr);
350 guess_from_received_header (notmuch_config_t *config, notmuch_message_t *message)
352 const char *received,*primary,*by;
355 char *mta,*ptr,*token;
358 const char *delim=". \t";
359 size_t i,j,other_len;
361 const char *to_headers[] = {"Envelope-to", "X-Original-To"};
363 primary = notmuch_config_get_user_primary_email (config);
364 other = notmuch_config_get_user_other_email (config, &other_len);
366 /* sadly, there is no standard way to find out to which email
367 * address a mail was delivered - what is in the headers depends
368 * on the MTAs used along the way. So we are trying a number of
369 * heuristics which hopefully will answer this question.
371 * We only got here if none of the users email addresses are in
372 * the To: or Cc: header. From here we try the following in order:
373 * 1) check for an Envelope-to: header
374 * 2) check for an X-Original-To: header
375 * 3) check for a (for <email@add.res>) clause in Received: headers
376 * 4) check for the domain part of known email addresses in the
377 * 'by' part of Received headers
378 * If none of these work, we give up and return NULL
380 for (i = 0; i < sizeof(to_headers)/sizeof(*to_headers); i++) {
381 tohdr = xstrdup(notmuch_message_get_header (message, to_headers[i]));
382 if (tohdr && *tohdr) {
383 /* tohdr is potentialy a list of email addresses, so here we
384 * check if one of the email addresses is a substring of tohdr
386 if (strcasestr(tohdr, primary)) {
390 for (j = 0; j < other_len; j++)
391 if (strcasestr (tohdr, other[j])) {
399 /* We get the concatenated Received: headers and search from the
400 * front (last Received: header added) and try to extract from
401 * them indications to which email address this message was
403 * The Received: header is special in our get_header function
404 * and is always concatenated.
406 received = notmuch_message_get_header (message, "received");
407 if (received == NULL)
410 /* First we look for a " for <email@add.res>" in the received
413 ptr = strstr (received, " for ");
415 /* the text following is potentialy a list of email addresses,
416 * so again we check if one of the email addresses is a
419 if (strcasestr(ptr, primary)) {
422 for (i = 0; i < other_len; i++)
423 if (strcasestr (ptr, other[i])) {
427 /* Finally, we parse all the " by MTA ..." headers to guess the
428 * email address that this was originally delivered to.
429 * We extract just the MTA here by removing leading whitespace and
430 * assuming that the MTA name ends at the next whitespace.
431 * We test for *(by+4) to be non-'\0' to make sure there's
432 * something there at all - and then assume that the first
433 * whitespace delimited token that follows is the receiving
434 * system in this step of the receive chain
437 while((by = strstr (by, " by ")) != NULL) {
442 token = strtok(mta," \t");
447 /* Now extract the last two components of the MTA host name
451 while ((ptr = strsep (&token, delim)) != NULL) {
459 /* Recombine domain and tld and look for it among the configured
461 * This time we have a known domain name and nothing else - so
462 * the test is the other way around: we check if this is a
463 * substring of one of the email addresses.
467 if (strcasestr(primary, domain)) {
471 for (i = 0; i < other_len; i++)
472 if (strcasestr (other[i],domain)) {
484 notmuch_reply_format_default(void *ctx,
485 notmuch_config_t *config,
486 notmuch_query_t *query,
487 notmuch_show_params_t *params)
490 notmuch_messages_t *messages;
491 notmuch_message_t *message;
492 const char *subject, *from_addr = NULL;
493 const char *in_reply_to, *orig_references, *references;
494 const notmuch_show_format_t *format = &format_reply;
496 for (messages = notmuch_query_search_messages (query);
497 notmuch_messages_valid (messages);
498 notmuch_messages_move_to_next (messages))
500 message = notmuch_messages_get (messages);
502 /* The 1 means we want headers in a "pretty" order. */
503 reply = g_mime_message_new (1);
505 fprintf (stderr, "Out of memory\n");
509 subject = notmuch_message_get_header (message, "subject");
511 if (strncasecmp (subject, "Re:", 3))
512 subject = talloc_asprintf (ctx, "Re: %s", subject);
513 g_mime_message_set_subject (reply, subject);
516 from_addr = add_recipients_from_message (reply, config, message);
518 if (from_addr == NULL)
519 from_addr = guess_from_received_header (config, message);
521 if (from_addr == NULL)
522 from_addr = notmuch_config_get_user_primary_email (config);
524 from_addr = talloc_asprintf (ctx, "%s <%s>",
525 notmuch_config_get_user_name (config),
527 g_mime_object_set_header (GMIME_OBJECT (reply),
530 in_reply_to = talloc_asprintf (ctx, "<%s>",
531 notmuch_message_get_message_id (message));
533 g_mime_object_set_header (GMIME_OBJECT (reply),
534 "In-Reply-To", in_reply_to);
536 orig_references = notmuch_message_get_header (message, "references");
537 references = talloc_asprintf (ctx, "%s%s%s",
538 orig_references ? orig_references : "",
539 orig_references ? " " : "",
541 g_mime_object_set_header (GMIME_OBJECT (reply),
542 "References", references);
544 show_reply_headers (reply);
546 g_object_unref (G_OBJECT (reply));
549 printf ("On %s, %s wrote:\n",
550 notmuch_message_get_header (message, "date"),
551 notmuch_message_get_header (message, "from"));
553 show_message_body (message, format, params);
555 notmuch_message_destroy (message);
560 /* This format is currently tuned for a git send-email --notmuch hook */
562 notmuch_reply_format_headers_only(void *ctx,
563 notmuch_config_t *config,
564 notmuch_query_t *query,
565 unused (notmuch_show_params_t *params))
568 notmuch_messages_t *messages;
569 notmuch_message_t *message;
570 const char *in_reply_to, *orig_references, *references;
573 for (messages = notmuch_query_search_messages (query);
574 notmuch_messages_valid (messages);
575 notmuch_messages_move_to_next (messages))
577 message = notmuch_messages_get (messages);
579 /* The 0 means we do not want headers in a "pretty" order. */
580 reply = g_mime_message_new (0);
582 fprintf (stderr, "Out of memory\n");
586 in_reply_to = talloc_asprintf (ctx, "<%s>",
587 notmuch_message_get_message_id (message));
589 g_mime_object_set_header (GMIME_OBJECT (reply),
590 "In-Reply-To", in_reply_to);
593 orig_references = notmuch_message_get_header (message, "references");
595 /* We print In-Reply-To followed by References because git format-patch treats them
596 * specially. Git does not interpret the other headers specially
598 references = talloc_asprintf (ctx, "%s%s%s",
599 orig_references ? orig_references : "",
600 orig_references ? " " : "",
602 g_mime_object_set_header (GMIME_OBJECT (reply),
603 "References", references);
605 (void)add_recipients_from_message (reply, config, message);
607 reply_headers = g_mime_object_to_string (GMIME_OBJECT (reply));
608 printf ("%s", reply_headers);
609 free (reply_headers);
611 g_object_unref (G_OBJECT (reply));
614 notmuch_message_destroy (message);
625 notmuch_reply_command (void *ctx, int argc, char *argv[])
627 notmuch_config_t *config;
628 notmuch_database_t *notmuch;
629 notmuch_query_t *query;
631 int opt_index, ret = 0;
632 int (*reply_format_func)(void *ctx, notmuch_config_t *config, notmuch_query_t *query, notmuch_show_params_t *params);
633 notmuch_show_params_t params = { .part = -1 };
634 int format = FORMAT_DEFAULT;
635 notmuch_bool_t decrypt = FALSE;
637 notmuch_opt_desc_t options[] = {
638 { NOTMUCH_OPT_KEYWORD, &format, "format", 'f',
639 (notmuch_keyword_t []){ { "default", FORMAT_DEFAULT },
640 { "headers-only", FORMAT_HEADERS_ONLY },
642 { NOTMUCH_OPT_BOOLEAN, &decrypt, "decrypt", 'd', 0 },
646 opt_index = parse_arguments (argc, argv, options, 1);
648 /* diagnostics already printed */
652 if (format == FORMAT_HEADERS_ONLY)
653 reply_format_func = notmuch_reply_format_headers_only;
655 reply_format_func = notmuch_reply_format_default;
658 GMimeSession* session = g_object_new (g_mime_session_get_type(), NULL);
659 params.cryptoctx = g_mime_gpg_context_new (session, "gpg");
660 if (params.cryptoctx) {
661 g_mime_gpg_context_set_always_trust ((GMimeGpgContext*) params.cryptoctx, FALSE);
662 params.decrypt = TRUE;
664 fprintf (stderr, "Failed to construct gpg context.\n");
666 g_object_unref (session);
669 config = notmuch_config_open (ctx, NULL, NULL);
673 query_string = query_string_from_args (ctx, argc-opt_index, argv+opt_index);
674 if (query_string == NULL) {
675 fprintf (stderr, "Out of memory\n");
679 if (*query_string == '\0') {
680 fprintf (stderr, "Error: notmuch reply requires at least one search term.\n");
684 notmuch = notmuch_database_open (notmuch_config_get_database_path (config),
685 NOTMUCH_DATABASE_MODE_READ_ONLY);
689 query = notmuch_query_create (notmuch, query_string);
691 fprintf (stderr, "Out of memory\n");
695 if (reply_format_func (ctx, config, query, ¶ms) != 0)
698 notmuch_query_destroy (query);
699 notmuch_database_close (notmuch);
701 if (params.cryptoctx)
702 g_object_unref(params.cryptoctx);