mirror of
https://git.notmuchmail.org/git/notmuch
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2f8871df6e
Outputting of single MIME parts is moved to an option of notmuch show, instead of being handled in it's own sub-command. The recent rework of multipart mime allowed for this change but consolidating part handling into a single recursive function (show_message_part) that includes formatting. This allows for far simpler handling single output of a single part, including formatting.
138 lines
3.6 KiB
C
138 lines
3.6 KiB
C
/* notmuch - Not much of an email program, (just index and search)
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*
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* Copyright © 2009 Carl Worth
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* Copyright © 2009 Keith Packard
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see http://www.gnu.org/licenses/ .
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*
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* Authors: Carl Worth <cworth@cworth.org>
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* Keith Packard <keithp@keithp.com>
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*/
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#include "notmuch-client.h"
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typedef struct show_message_state {
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int part_count;
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int in_zone;
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} show_message_state_t;
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static void
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show_message_part (GMimeObject *part,
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show_message_state_t *state,
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const notmuch_show_format_t *format,
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notmuch_show_params_t *params,
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int first)
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{
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int selected;
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state->part_count += 1;
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if (! (GMIME_IS_PART (part) || GMIME_IS_MULTIPART (part) || GMIME_IS_MESSAGE_PART (part))) {
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fprintf (stderr, "Warning: Not displaying unknown mime part: %s.\n",
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g_type_name (G_OBJECT_TYPE (part)));
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return;
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}
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selected = (params->part <= 0 || state->part_count == params->part);
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if (selected || state->in_zone) {
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if (!first && (params->part <= 0 || state->in_zone))
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fputs (format->part_sep, stdout);
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format->part (part, &(state->part_count));
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}
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if (GMIME_IS_MULTIPART (part)) {
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GMimeMultipart *multipart = GMIME_MULTIPART (part);
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int i;
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if (selected)
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state->in_zone = 1;
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for (i = 0; i < g_mime_multipart_get_count (multipart); i++) {
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show_message_part (g_mime_multipart_get_part (multipart, i),
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state, format, params, i == 0);
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}
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if (selected)
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state->in_zone = 0;
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} else if (GMIME_IS_MESSAGE_PART (part)) {
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GMimeMessage *mime_message = g_mime_message_part_get_message (GMIME_MESSAGE_PART (part));
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if (selected)
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state->in_zone = 1;
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show_message_part (g_mime_message_get_mime_part (mime_message),
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state, format, params, TRUE);
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if (selected)
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state->in_zone = 0;
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}
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if (selected || state->in_zone) {
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if (format->part_end)
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format->part_end (part);
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}
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}
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notmuch_status_t
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show_message_body (const char *filename,
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const notmuch_show_format_t *format,
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notmuch_show_params_t *params)
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{
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GMimeStream *stream = NULL;
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GMimeParser *parser = NULL;
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GMimeMessage *mime_message = NULL;
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notmuch_status_t ret = NOTMUCH_STATUS_SUCCESS;
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FILE *file = NULL;
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show_message_state_t state;
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state.part_count = 0;
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state.in_zone = 0;
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file = fopen (filename, "r");
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if (! file) {
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fprintf (stderr, "Error opening %s: %s\n", filename, strerror (errno));
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ret = NOTMUCH_STATUS_FILE_ERROR;
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goto DONE;
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}
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stream = g_mime_stream_file_new (file);
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g_mime_stream_file_set_owner (GMIME_STREAM_FILE (stream), FALSE);
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parser = g_mime_parser_new_with_stream (stream);
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mime_message = g_mime_parser_construct_message (parser);
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show_message_part (g_mime_message_get_mime_part (mime_message),
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&state,
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format,
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params,
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TRUE);
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DONE:
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if (mime_message)
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g_object_unref (mime_message);
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if (parser)
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g_object_unref (parser);
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if (stream)
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g_object_unref (stream);
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if (file)
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fclose (file);
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return ret;
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}
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