git.notmuchmail.org Git - notmuch/blob - notmuch-reply.c

   1 /* notmuch - Not much of an email program, (just index and search)
   2  *
   3  * Copyright © 2009 Carl Worth
   4  * Copyright © 2009 Keith Packard
   5  *
   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.
  10  *
  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.
  15  *
  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/ .
  18  *
  19  * Authors: Carl Worth <cworth@cworth.org>
  20  *          Keith Packard <keithp@keithp.com>
  21  */
  22
  23 #include "notmuch-client.h"
  24 #include "gmime-filter-reply.h"
  25
  26 static const struct {
  27     const char *header;
  28     const char *fallback;
  29     GMimeRecipientType recipient_type;
  30 } reply_to_map[] = {
  31     { "reply-to", "from", GMIME_RECIPIENT_TYPE_TO  },
  32     { "to",         NULL, GMIME_RECIPIENT_TYPE_TO  },
  33     { "cc",         NULL, GMIME_RECIPIENT_TYPE_CC  },
  34     { "bcc",        NULL, GMIME_RECIPIENT_TYPE_BCC }
  35 };
  36
  37 static void
  38 reply_part_content (GMimeObject *part)
  39 {
  40     GMimeStream *stream_stdout = NULL, *stream_filter = NULL;
  41     GMimeDataWrapper *wrapper;
  42     const char *charset;
  43
  44     charset = g_mime_object_get_content_type_parameter (part, "charset");
  45     stream_stdout = g_mime_stream_file_new (stdout);
  46     if (stream_stdout) {
  47         g_mime_stream_file_set_owner (GMIME_STREAM_FILE (stream_stdout), FALSE);
  48         stream_filter = g_mime_stream_filter_new(stream_stdout);
  49         if (charset) {
  50           g_mime_stream_filter_add(GMIME_STREAM_FILTER(stream_filter),
  51                                    g_mime_filter_charset_new(charset, "UTF-8"));
  52         }
  53     }
  54     g_mime_stream_filter_add(GMIME_STREAM_FILTER(stream_filter),
  55                              g_mime_filter_reply_new(TRUE));
  56     wrapper = g_mime_part_get_content_object (GMIME_PART (part));
  57     if (wrapper && stream_filter)
  58         g_mime_data_wrapper_write_to_stream (wrapper, stream_filter);
  59     if (stream_filter)
  60         g_object_unref(stream_filter);
  61     if (stream_stdout)
  62         g_object_unref(stream_stdout);
  63 }
  64
  65 static void
  66 reply_part (GMimeObject *part, int *part_count)
  67 {
  68     GMimeContentDisposition *disposition;
  69     GMimeContentType *content_type;
  70
  71     (void) part_count;
  72     disposition = g_mime_object_get_content_disposition (part);
  73     if (disposition &&
  74         strcmp (disposition->disposition, GMIME_DISPOSITION_ATTACHMENT) == 0)
  75     {
  76         const char *filename = g_mime_part_get_filename (GMIME_PART (part));
  77         content_type = g_mime_object_get_content_type (GMIME_OBJECT (part));
  78
  79         if (g_mime_content_type_is_type (content_type, "text", "*") &&
  80             !g_mime_content_type_is_type (content_type, "text", "html"))
  81         {
  82             reply_part_content (part);
  83         }
  84         else
  85         {
  86             printf ("Attachment: %s (%s)\n", filename,
  87                     g_mime_content_type_to_string (content_type));
  88         }
  89
  90         return;
  91     }
  92
  93     content_type = g_mime_object_get_content_type (GMIME_OBJECT (part));
  94
  95     if (g_mime_content_type_is_type (content_type, "text", "*") &&
  96         !g_mime_content_type_is_type (content_type, "text", "html"))
  97     {
  98         reply_part_content (part);
  99     }
 100     else
 101     {
 102         printf ("Non-text part: %s\n",
 103                 g_mime_content_type_to_string (content_type));
 104     }
 105 }
 106
 107 /* Is the given address configured as one of the user's "personal" or
 108  * "other" addresses. */
 109 static int
 110 address_is_users (const char *address, notmuch_config_t *config)
 111 {
 112     const char *primary;
 113     char **other;
 114     size_t i, other_len;
 115
 116     primary = notmuch_config_get_user_primary_email (config);
 117     if (strcasecmp (primary, address) == 0)
 118         return 1;
 119
 120     other = notmuch_config_get_user_other_email (config, &other_len);
 121     for (i = 0; i < other_len; i++)
 122         if (strcasecmp (other[i], address) == 0)
 123             return 1;
 124
 125     return 0;
 126 }
 127
 128 /* For each address in 'list' that is not configured as one of the
 129  * user's addresses in 'config', add that address to 'message' as an
 130  * address of 'type'.
 131  *
 132  * The first address encountered that *is* the user's address will be
 133  * returned, (otherwise NULL is returned).
 134  */
 135 static const char *
 136 add_recipients_for_address_list (GMimeMessage *message,
 137                                  notmuch_config_t *config,
 138                                  GMimeRecipientType type,
 139                                  InternetAddressList *list)
 140 {
 141     InternetAddress *address;
 142     int i;
 143     const char *ret = NULL;
 144
 145     for (i = 0; i < internet_address_list_length (list); i++) {
 146         address = internet_address_list_get_address (list, i);
 147         if (INTERNET_ADDRESS_IS_GROUP (address)) {
 148             InternetAddressGroup *group;
 149             InternetAddressList *group_list;
 150
 151             group = INTERNET_ADDRESS_GROUP (address);
 152             group_list = internet_address_group_get_members (group);
 153             if (group_list == NULL)
 154                 continue;
 155
 156             add_recipients_for_address_list (message, config,
 157                                              type, group_list);
 158         } else {
 159             InternetAddressMailbox *mailbox;
 160             const char *name;
 161             const char *addr;
 162
 163             mailbox = INTERNET_ADDRESS_MAILBOX (address);
 164
 165             name = internet_address_get_name (address);
 166             addr = internet_address_mailbox_get_addr (mailbox);
 167
 168             if (address_is_users (addr, config)) {
 169                 if (ret == NULL)
 170                     ret = addr;
 171             } else {
 172                 g_mime_message_add_recipient (message, type, name, addr);
 173             }
 174         }
 175     }
 176
 177     return ret;
 178 }
 179
 180 /* For each address in 'recipients' that is not configured as one of
 181  * the user's addresses in 'config', add that address to 'message' as
 182  * an address of 'type'.
 183  *
 184  * The first address encountered that *is* the user's address will be
 185  * returned, (otherwise NULL is returned).
 186  */
 187 static const char *
 188 add_recipients_for_string (GMimeMessage *message,
 189                            notmuch_config_t *config,
 190                            GMimeRecipientType type,
 191                            const char *recipients)
 192 {
 193     InternetAddressList *list;
 194
 195     list = internet_address_list_parse_string (recipients);
 196     if (list == NULL)
 197         return NULL;
 198
 199     return add_recipients_for_address_list (message, config, type, list);
 200 }
 201
 202 static int
 203 notmuch_reply_format_default(void *ctx, notmuch_config_t *config, notmuch_query_t *query)
 204 {
 205     GMimeMessage *reply;
 206     notmuch_messages_t *messages;
 207     notmuch_message_t *message;
 208     const char *subject, *recipients, *from_addr = NULL;
 209     const char *in_reply_to, *orig_references, *references;
 210     char *reply_headers;
 211     unsigned int i;
 212
 213     for (messages = notmuch_query_search_messages (query);
 214          notmuch_messages_has_more (messages);
 215          notmuch_messages_advance (messages))
 216     {
 217         message = notmuch_messages_get (messages);
 218
 219         /* The 1 means we want headers in a "pretty" order. */
 220         reply = g_mime_message_new (1);
 221         if (reply == NULL) {
 222             fprintf (stderr, "Out of memory\n");
 223             return 1;
 224         }
 225
 226         subject = notmuch_message_get_header (message, "subject");
 227
 228         if (strncasecmp (subject, "Re:", 3))
 229             subject = talloc_asprintf (ctx, "Re: %s", subject);
 230         g_mime_message_set_subject (reply, subject);
 231
 232         for (i = 0; i < ARRAY_SIZE (reply_to_map); i++) {
 233             const char *addr;
 234
 235             recipients = notmuch_message_get_header (message,
 236                                                      reply_to_map[i].header);
 237             if ((recipients == NULL || recipients[0] == '\0') && reply_to_map[i].fallback)
 238                 recipients = notmuch_message_get_header (message,
 239                                                          reply_to_map[i].fallback);
 240
 241             addr = add_recipients_for_string (reply, config,
 242                                               reply_to_map[i].recipient_type,
 243                                               recipients);
 244             if (from_addr == NULL)
 245                 from_addr = addr;
 246         }
 247
 248         if (from_addr == NULL)
 249             from_addr = notmuch_config_get_user_primary_email (config);
 250
 251         from_addr = talloc_asprintf (ctx, "%s <%s>",
 252                                      notmuch_config_get_user_name (config),
 253                                      from_addr);
 254         g_mime_object_set_header (GMIME_OBJECT (reply),
 255                                   "From", from_addr);
 256
 257         g_mime_object_set_header (GMIME_OBJECT (reply), "Bcc",
 258                            notmuch_config_get_user_primary_email (config));
 259
 260         in_reply_to = talloc_asprintf (ctx, "<%s>",
 261                              notmuch_message_get_message_id (message));
 262
 263         g_mime_object_set_header (GMIME_OBJECT (reply),
 264                                   "In-Reply-To", in_reply_to);
 265
 266         orig_references = notmuch_message_get_header (message, "references");
 267         references = talloc_asprintf (ctx, "%s%s%s",
 268                                       orig_references ? orig_references : "",
 269                                       orig_references ? " " : "",
 270                                       in_reply_to);
 271         g_mime_object_set_header (GMIME_OBJECT (reply),
 272                                   "References", references);
 273
 274         reply_headers = g_mime_object_to_string (GMIME_OBJECT (reply));
 275         printf ("%s", reply_headers);
 276         free (reply_headers);
 277
 278         g_object_unref (G_OBJECT (reply));
 279         reply = NULL;
 280
 281         printf ("On %s, %s wrote:\n",
 282                 notmuch_message_get_header (message, "date"),
 283                 notmuch_message_get_header (message, "from"));
 284
 285         show_message_body (notmuch_message_get_filename (message), reply_part);
 286
 287         notmuch_message_destroy (message);
 288     }
 289     return 0;
 290 }
 291
 292 /* This format is currently tuned for a git send-email --notmuch hook */
 293 static int
 294 notmuch_reply_format_headers_only(void *ctx, notmuch_config_t *config, notmuch_query_t *query)
 295 {
 296     GMimeMessage *reply;
 297     notmuch_messages_t *messages;
 298     notmuch_message_t *message;
 299     const char *recipients, *in_reply_to, *orig_references, *references;
 300     char *reply_headers;
 301     unsigned int i;
 302
 303     for (messages = notmuch_query_search_messages (query);
 304          notmuch_messages_has_more (messages);
 305          notmuch_messages_advance (messages))
 306     {
 307         message = notmuch_messages_get (messages);
 308
 309         /* The 0 means we do not want headers in a "pretty" order. */
 310         reply = g_mime_message_new (0);
 311         if (reply == NULL) {
 312             fprintf (stderr, "Out of memory\n");
 313             return 1;
 314         }
 315
 316         in_reply_to = talloc_asprintf (ctx, "<%s>",
 317                              notmuch_message_get_message_id (message));
 318
 319         g_mime_object_set_header (GMIME_OBJECT (reply),
 320                                   "In-Reply-To", in_reply_to);
 321
 322
 323         orig_references = notmuch_message_get_header (message, "references");
 324
 325         /* We print In-Reply-To followed by References because git format-patch treats them
 326          * specially.  Git does not interpret the other headers specially
 327          */
 328         references = talloc_asprintf (ctx, "%s%s%s",
 329                                       orig_references ? orig_references : "",
 330                                       orig_references ? " " : "",
 331                                       in_reply_to);
 332         g_mime_object_set_header (GMIME_OBJECT (reply),
 333                                   "References", references);
 334
 335         for (i = 0; i < ARRAY_SIZE (reply_to_map); i++) {
 336             const char *addr;
 337
 338             recipients = notmuch_message_get_header (message,
 339                                                      reply_to_map[i].header);
 340             if ((recipients == NULL || recipients[0] == '\0') && reply_to_map[i].fallback)
 341                 recipients = notmuch_message_get_header (message,
 342                                                          reply_to_map[i].fallback);
 343
 344             addr = add_recipients_for_string (reply, config,
 345                                               reply_to_map[i].recipient_type,
 346                                               recipients);
 347         }
 348
 349         g_mime_object_set_header (GMIME_OBJECT (reply), "Bcc",
 350                            notmuch_config_get_user_primary_email (config));
 351
 352         reply_headers = g_mime_object_to_string (GMIME_OBJECT (reply));
 353         printf ("%s", reply_headers);
 354         free (reply_headers);
 355
 356         g_object_unref (G_OBJECT (reply));
 357         reply = NULL;
 358
 359         notmuch_message_destroy (message);
 360     }
 361     return 0;
 362 }
 363
 364 int
 365 notmuch_reply_command (void *ctx, int argc, char *argv[])
 366 {
 367     notmuch_config_t *config;
 368     notmuch_database_t *notmuch;
 369     notmuch_query_t *query;
 370     char *opt, *query_string;
 371     int i, ret = 0;
 372     int (*reply_format_func)(void *ctx, notmuch_config_t *config, notmuch_query_t *query);
 373
 374     reply_format_func = notmuch_reply_format_default;
 375
 376     for (i = 0; i < argc && argv[i][0] == '-'; i++) {
 377         if (strcmp (argv[i], "--") == 0) {
 378             i++;
 379             break;
 380         }
 381         if (STRNCMP_LITERAL (argv[i], "--format=") == 0) {
 382             opt = argv[i] + sizeof ("--format=") - 1;
 383             if (strcmp (opt, "default") == 0) {
 384                 reply_format_func = notmuch_reply_format_default;
 385             } else if (strcmp (opt, "headers-only") == 0) {
 386                 reply_format_func = notmuch_reply_format_headers_only;
 387             } else {
 388                 fprintf (stderr, "Invalid value for --format: %s\n", opt);
 389                 return 1;
 390             }
 391         } else {
 392             fprintf (stderr, "Unrecognized option: %s\n", argv[i]);
 393             return 1;
 394         }
 395     }
 396
 397     argc -= i;
 398     argv += i;
 399
 400     config = notmuch_config_open (ctx, NULL, NULL);
 401     if (config == NULL)
 402         return 1;
 403
 404     query_string = query_string_from_args (ctx, argc, argv);
 405     if (query_string == NULL) {
 406         fprintf (stderr, "Out of memory\n");
 407         return 1;
 408     }
 409
 410     if (*query_string == '\0') {
 411         fprintf (stderr, "Error: notmuch reply requires at least one search term.\n");
 412         return 1;
 413     }
 414
 415     notmuch = notmuch_database_open (notmuch_config_get_database_path (config),
 416                                      NOTMUCH_DATABASE_MODE_READ_ONLY);
 417     if (notmuch == NULL)
 418         return 1;
 419
 420     query = notmuch_query_create (notmuch, query_string);
 421     if (query == NULL) {
 422         fprintf (stderr, "Out of memory\n");
 423         return 1;
 424     }
 425
 426     if (reply_format_func (ctx, config, query) != 0)
 427         return 1;
 428
 429     notmuch_query_destroy (query);
 430     notmuch_database_close (notmuch);
 431
 432     return ret;
 433 }