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