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/* notmuch - Not much of an email program, (just index and search)
*
* Copyright © 2009 Carl Worth
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see http://www.gnu.org/licenses/ .
*
* Author: Carl Worth <cworth@cworth.org>
*/
#include "notmuch-client.h"
typedef struct show_format {
const char *message_set_start;
const char *message_start;
void (*message) (const void *ctx,
notmuch_message_t *message,
int indent);
const char *header_start;
void (*header) (const void *ctx,
notmuch_message_t *message);
const char *header_end;
const char *body_start;
void (*part) (GMimeObject *part,
int *part_count);
const char *body_end;
const char *message_end;
const char *message_set_sep;
const char *message_set_end;
} show_format_t;
static void
format_message_text (unused (const void *ctx),
notmuch_message_t *message,
int indent);
static void
format_headers_text (const void *ctx,
notmuch_message_t *message);
static void
format_part_text (GMimeObject *part,
int *part_count);
static const show_format_t format_text = {
"",
"\fmessage{ ", format_message_text,
"\fheader{\n", format_headers_text, "\fheader}\n",
"\fbody{\n", format_part_text, "\fbody}\n",
"\fmessage}\n", "",
""
};
static void
format_message_json (const void *ctx,
notmuch_message_t *message,
unused (int indent));
static void
format_headers_json (const void *ctx,
notmuch_message_t *message);
static void
format_part_json (GMimeObject *part,
int *part_count);
static const show_format_t format_json = {
"[",
"{", format_message_json,
", \"headers\": {", format_headers_json, "}",
", \"body\": [", format_part_json, "]",
"}", ", ",
"]"
};
static void
format_message_mbox (const void *ctx,
notmuch_message_t *message,
unused (int indent));
static const show_format_t format_mbox = {
"",
"", format_message_mbox,
"", NULL, "",
"", NULL, "",
"", "",
""
};
static const char *
_get_tags_as_string (const void *ctx, notmuch_message_t *message)
{
notmuch_tags_t *tags;
int first = 1;
const char *tag;
char *result;
result = talloc_strdup (ctx, "");
if (result == NULL)
return NULL;
for (tags = notmuch_message_get_tags (message);
notmuch_tags_valid (tags);
notmuch_tags_move_to_next (tags))
{
tag = notmuch_tags_get (tags);
result = talloc_asprintf_append (result, "%s%s",
first ? "" : " ", tag);
first = 0;
}
return result;
}
/* Get a nice, single-line summary of message. */
static const char *
_get_one_line_summary (const void *ctx, notmuch_message_t *message)
{
const char *from;
time_t date;
const char *relative_date;
const char *tags;
from = notmuch_message_get_header (message, "from");
date = notmuch_message_get_date (message);
relative_date = notmuch_time_relative_date (ctx, date);
tags = _get_tags_as_string (ctx, message);
return talloc_asprintf (ctx, "%s (%s) (%s)",
from, relative_date, tags);
}
static void
format_message_text (unused (const void *ctx), notmuch_message_t *message, int indent)
{
printf ("id:%s depth:%d match:%d filename:%s\n",
notmuch_message_get_message_id (message),
indent,
notmuch_message_get_flag (message, NOTMUCH_MESSAGE_FLAG_MATCH),
notmuch_message_get_filename (message));
}
static void
format_message_json (const void *ctx, notmuch_message_t *message, unused (int indent))
{
notmuch_tags_t *tags;
int first = 1;
void *ctx_quote = talloc_new (ctx);
time_t date;
const char *relative_date;
date = notmuch_message_get_date (message);
relative_date = notmuch_time_relative_date (ctx, date);
printf ("\"id\": %s, \"match\": %s, \"filename\": %s, \"timestamp\": %ld, \"date_relative\": \"%s\", \"tags\": [",
json_quote_str (ctx_quote, notmuch_message_get_message_id (message)),
notmuch_message_get_flag (message, NOTMUCH_MESSAGE_FLAG_MATCH) ? "true" : "false",
json_quote_str (ctx_quote, notmuch_message_get_filename (message)),
date, relative_date);
for (tags = notmuch_message_get_tags (message);
notmuch_tags_valid (tags);
notmuch_tags_move_to_next (tags))
{
printf("%s%s", first ? "" : ",",
json_quote_str (ctx_quote, notmuch_tags_get (tags)));
first = 0;
}
printf("]");
talloc_free (ctx_quote);
}
/* Extract just the email address from the contents of a From:
* header. */
static const char *
_extract_email_address (const void *ctx, const char *from)
{
InternetAddressList *addresses;
InternetAddress *address;
InternetAddressMailbox *mailbox;
const char *email = "MAILER-DAEMON";
addresses = internet_address_list_parse_string (from);
/* Bail if there is no address here. */
if (addresses == NULL || internet_address_list_length (addresses) < 1)
goto DONE;
/* Otherwise, just use the first address. */
address = internet_address_list_get_address (addresses, 0);
/* The From header should never contain an address group rather
* than a mailbox. So bail if it does. */
if (! INTERNET_ADDRESS_IS_MAILBOX (address))
goto DONE;
mailbox = INTERNET_ADDRESS_MAILBOX (address);
email = internet_address_mailbox_get_addr (mailbox);
email = talloc_strdup (ctx, email);
DONE:
/* XXX: How to free addresses here? */
return email;
}
/* Return 1 if 'line' is an mbox From_ line---that is, a line
* beginning with zero or more '>' characters followed by the
* characters 'F', 'r', 'o', 'm', and space.
*
* Any characters at all may appear after that in the line.
*/
static int
_is_from_line (const char *line)
{
const char *s = line;
if (line == NULL)
return 0;
while (*s == '>')
s++;
if (STRNCMP_LITERAL (s, "From ") == 0)
return 1;
else
return 0;
}
/* Print a message in "mboxrd" format as documented, for example,
* here:
*
* http://qmail.org/qmail-manual-html/man5/mbox.html
*/
static void
format_message_mbox (const void *ctx,
notmuch_message_t *message,
unused (int indent))
{
const char *filename;
FILE *file;
const char *from;
time_t date;
struct tm date_gmtime;
char date_asctime[26];
char *line = NULL;
size_t line_size;
ssize_t line_len;
filename = notmuch_message_get_filename (message);
file = fopen (filename, "r");
if (file == NULL) {
fprintf (stderr, "Failed to open %s: %s\n",
filename, strerror (errno));
return;
}
from = notmuch_message_get_header (message, "from");
from = _extract_email_address (ctx, from);
date = notmuch_message_get_date (message);
gmtime_r (&date, &date_gmtime);
asctime_r (&date_gmtime, date_asctime);
printf ("From %s %s", from, date_asctime);
while ((line_len = getline (&line, &line_size, file)) != -1 ) {
if (_is_from_line (line))
putchar ('>');
printf ("%s", line);
}
printf ("\n");
fclose (file);
}
static void
format_headers_text (const void *ctx, notmuch_message_t *message)
{
const char *headers[] = {
"Subject", "From", "To", "Cc", "Bcc", "Date"
};
const char *name, *value;
unsigned int i;
printf ("%s\n", _get_one_line_summary (ctx, message));
for (i = 0; i < ARRAY_SIZE (headers); i++) {
name = headers[i];
value = notmuch_message_get_header (message, name);
if (value && strlen (value))
printf ("%s: %s\n", name, value);
}
}
static void
format_headers_json (const void *ctx, notmuch_message_t *message)
{
const char *headers[] = {
"Subject", "From", "To", "Cc", "Bcc", "Date"
};
const char *name, *value;
unsigned int i;
int first_header = 1;
void *ctx_quote = talloc_new (ctx);
for (i = 0; i < ARRAY_SIZE (headers); i++) {
name = headers[i];
value = notmuch_message_get_header (message, name);
if (value)
{
if (!first_header)
fputs (", ", stdout);
first_header = 0;
printf ("%s: %s",
json_quote_str (ctx_quote, name),
json_quote_str (ctx_quote, value));
}
}
talloc_free (ctx_quote);
}
static void
show_part_content (GMimeObject *part, GMimeStream *stream_out)
{
GMimeStream *stream_filter = NULL;
GMimeDataWrapper *wrapper;
const char *charset;
charset = g_mime_object_get_content_type_parameter (part, "charset");
if (stream_out) {
stream_filter = g_mime_stream_filter_new (stream_out);
g_mime_stream_filter_add(GMIME_STREAM_FILTER (stream_filter),
g_mime_filter_crlf_new (FALSE, FALSE));
if (charset) {
GMimeFilter *charset_filter;
charset_filter = g_mime_filter_charset_new (charset, "UTF-8");
/* This result can be NULL for things like "unknown-8bit".
* Don't set a NULL filter as that makes GMime print
* annoying assertion-failure messages on stderr. */
if (charset_filter)
g_mime_stream_filter_add (GMIME_STREAM_FILTER (stream_filter),
charset_filter);
}
}
wrapper = g_mime_part_get_content_object (GMIME_PART (part));
if (wrapper && stream_filter)
g_mime_data_wrapper_write_to_stream (wrapper, stream_filter);
if (stream_filter)
g_object_unref(stream_filter);
}
static void
format_part_text (GMimeObject *part, int *part_count)
{
GMimeContentDisposition *disposition;
GMimeContentType *content_type;
disposition = g_mime_object_get_content_disposition (part);
if (disposition &&
strcmp (disposition->disposition, GMIME_DISPOSITION_ATTACHMENT) == 0)
{
const char *filename = g_mime_part_get_filename (GMIME_PART (part));
content_type = g_mime_object_get_content_type (GMIME_OBJECT (part));
printf ("\fattachment{ ID: %d, Content-type: %s\n",
*part_count,
g_mime_content_type_to_string (content_type));
printf ("Attachment: %s (%s)\n", filename,
g_mime_content_type_to_string (content_type));
if (g_mime_content_type_is_type (content_type, "text", "*") &&
!g_mime_content_type_is_type (content_type, "text", "html"))
{
GMimeStream *stream_stdout = g_mime_stream_file_new (stdout);
g_mime_stream_file_set_owner (GMIME_STREAM_FILE (stream_stdout), FALSE);
show_part_content (part, stream_stdout);
g_object_unref(stream_stdout);
}
printf ("\fattachment}\n");
return;
}
content_type = g_mime_object_get_content_type (GMIME_OBJECT (part));
printf ("\fpart{ ID: %d, Content-type: %s\n",
*part_count,
g_mime_content_type_to_string (content_type));
if (g_mime_content_type_is_type (content_type, "text", "*") &&
!g_mime_content_type_is_type (content_type, "text", "html"))
{
GMimeStream *stream_stdout = g_mime_stream_file_new (stdout);
g_mime_stream_file_set_owner (GMIME_STREAM_FILE (stream_stdout), FALSE);
show_part_content (part, stream_stdout);
g_object_unref(stream_stdout);
}
else
{
printf ("Non-text part: %s\n",
g_mime_content_type_to_string (content_type));
}
printf ("\fpart}\n");
}
static void
format_part_json (GMimeObject *part, int *part_count)
{
GMimeContentType *content_type;
GMimeContentDisposition *disposition;
void *ctx = talloc_new (NULL);
GMimeStream *stream_memory = g_mime_stream_mem_new ();
GByteArray *part_content;
content_type = g_mime_object_get_content_type (GMIME_OBJECT (part));
if (*part_count > 1)
fputs (", ", stdout);
printf ("{\"id\": %d, \"content-type\": %s",
*part_count,
json_quote_str (ctx, g_mime_content_type_to_string (content_type)));
disposition = g_mime_object_get_content_disposition (part);
if (disposition &&
strcmp (disposition->disposition, GMIME_DISPOSITION_ATTACHMENT) == 0)
{
const char *filename = g_mime_part_get_filename (GMIME_PART (part));
printf (", \"filename\": %s", json_quote_str (ctx, filename));
}
if (g_mime_content_type_is_type (content_type, "text", "*") &&
!g_mime_content_type_is_type (content_type, "text", "html"))
{
show_part_content (part, stream_memory);
part_content = g_mime_stream_mem_get_byte_array (GMIME_STREAM_MEM (stream_memory));
printf (", \"content\": %s", json_quote_chararray (ctx, (char *) part_content->data, part_content->len));
}
fputs ("}", stdout);
talloc_free (ctx);
if (stream_memory)
g_object_unref (stream_memory);
}
static void
show_message (void *ctx, const show_format_t *format, notmuch_message_t *message, int indent)
{
fputs (format->message_start, stdout);
if (format->message)
format->message(ctx, message, indent);
fputs (format->header_start, stdout);
if (format->header)
format->header(ctx, message);
fputs (format->header_end, stdout);
fputs (format->body_start, stdout);
if (format->part)
show_message_body (notmuch_message_get_filename (message), format->part);
fputs (format->body_end, stdout);
fputs (format->message_end, stdout);
}
static void
show_messages (void *ctx, const show_format_t *format, notmuch_messages_t *messages, int indent,
notmuch_bool_t entire_thread)
{
notmuch_message_t *message;
notmuch_bool_t match;
int first_set = 1;
int next_indent;
fputs (format->message_set_start, stdout);
for (;
notmuch_messages_valid (messages);
notmuch_messages_move_to_next (messages))
{
if (!first_set)
fputs (format->message_set_sep, stdout);
first_set = 0;
fputs (format->message_set_start, stdout);
message = notmuch_messages_get (messages);
match = notmuch_message_get_flag (message, NOTMUCH_MESSAGE_FLAG_MATCH);
next_indent = indent;
if (match || entire_thread) {
show_message (ctx, format, message, indent);
next_indent = indent + 1;
fputs (format->message_set_sep, stdout);
}
show_messages (ctx, format, notmuch_message_get_replies (message),
next_indent, entire_thread);
notmuch_message_destroy (message);
fputs (format->message_set_end, stdout);
}
fputs (format->message_set_end, stdout);
}
/* Support for --format=raw */
static int
do_show_raw (unused(void *ctx), notmuch_query_t *query)
{
notmuch_messages_t *messages;
notmuch_message_t *message;
const char *filename;
FILE *file;
size_t size;
char buf[4096];
if (notmuch_query_count_messages (query) != 1) {
fprintf (stderr, "Error: search term did not match precisely one message.\n");
return 1;
}
messages = notmuch_query_search_messages (query);
message = notmuch_messages_get (messages);
if (message == NULL) {
fprintf (stderr, "Error: Cannot find matching message.\n");
return 1;
}
filename = notmuch_message_get_filename (message);
if (filename == NULL) {
fprintf (stderr, "Error: Cannot message filename.\n");
return 1;
}
file = fopen (filename, "r");
if (file == NULL) {
fprintf (stderr, "Error: Cannot open file %s: %s\n", filename, strerror (errno));
return 1;
}
while (!feof (file)) {
size = fread (buf, 1, sizeof (buf), file);
fwrite (buf, size, 1, stdout);
}
fclose (file);
return 0;
}
/* Support for --format=text|json|mbox */
static int
do_show (void *ctx,
notmuch_query_t *query,
const show_format_t *format,
int entire_thread)
{
notmuch_threads_t *threads;
notmuch_thread_t *thread;
notmuch_messages_t *messages;
int first_toplevel = 1;
fputs (format->message_set_start, stdout);
for (threads = notmuch_query_search_threads (query);
notmuch_threads_valid (threads);
notmuch_threads_move_to_next (threads))
{
thread = notmuch_threads_get (threads);
messages = notmuch_thread_get_toplevel_messages (thread);
if (messages == NULL)
INTERNAL_ERROR ("Thread %s has no toplevel messages.\n",
notmuch_thread_get_thread_id (thread));
if (!first_toplevel)
fputs (format->message_set_sep, stdout);
first_toplevel = 0;
show_messages (ctx, format, messages, 0, entire_thread);
notmuch_thread_destroy (thread);
}
fputs (format->message_set_end, stdout);
return 0;
}
int
notmuch_show_command (void *ctx, unused (int argc), unused (char *argv[]))
{
notmuch_config_t *config;
notmuch_database_t *notmuch;
notmuch_query_t *query;
char *query_string;
char *opt;
const show_format_t *format = &format_text;
int entire_thread = 0;
int i;
int raw = 0;
for (i = 0; i < argc && argv[i][0] == '-'; i++) {
if (strcmp (argv[i], "--") == 0) {
i++;
break;
}
if (STRNCMP_LITERAL (argv[i], "--format=") == 0) {
opt = argv[i] + sizeof ("--format=") - 1;
if (strcmp (opt, "text") == 0) {
format = &format_text;
} else if (strcmp (opt, "json") == 0) {
format = &format_json;
entire_thread = 1;
} else if (strcmp (opt, "mbox") == 0) {
format = &format_mbox;
} else if (strcmp (opt, "raw") == 0) {
raw = 1;
} else {
fprintf (stderr, "Invalid value for --format: %s\n", opt);
return 1;
}
} else if (STRNCMP_LITERAL (argv[i], "--entire-thread") == 0) {
entire_thread = 1;
} else {
fprintf (stderr, "Unrecognized option: %s\n", argv[i]);
return 1;
}
}
argc -= i;
argv += i;
config = notmuch_config_open (ctx, NULL, NULL);
if (config == NULL)
return 1;
query_string = query_string_from_args (ctx, argc, argv);
if (query_string == NULL) {
fprintf (stderr, "Out of memory\n");
return 1;
}
if (*query_string == '\0') {
fprintf (stderr, "Error: notmuch show requires at least one search term.\n");
return 1;
}
notmuch = notmuch_database_open (notmuch_config_get_database_path (config),
NOTMUCH_DATABASE_MODE_READ_ONLY);
if (notmuch == NULL)
return 1;
query = notmuch_query_create (notmuch, query_string);
if (query == NULL) {
fprintf (stderr, "Out of memory\n");
return 1;
}
if (raw)
return do_show_raw (ctx, query);
else
return do_show (ctx, query, format, entire_thread);
notmuch_query_destroy (query);
notmuch_database_close (notmuch);
return 0;
}
int
notmuch_part_command (void *ctx, unused (int argc), unused (char *argv[]))
{
notmuch_config_t *config;
notmuch_database_t *notmuch;
notmuch_query_t *query;
notmuch_messages_t *messages;
notmuch_message_t *message;
char *query_string;
int i;
int part = 0;
for (i = 0; i < argc && argv[i][0] == '-'; i++) {
if (strcmp (argv[i], "--") == 0) {
i++;
break;
}
if (STRNCMP_LITERAL (argv[i], "--part=") == 0) {
part = atoi(argv[i] + sizeof ("--part=") - 1);
} else {
fprintf (stderr, "Unrecognized option: %s\n", argv[i]);
return 1;
}
}
argc -= i;
argv += i;
config = notmuch_config_open (ctx, NULL, NULL);
if (config == NULL)
return 1;
query_string = query_string_from_args (ctx, argc, argv);
if (query_string == NULL) {
fprintf (stderr, "Out of memory\n");
return 1;
}
if (*query_string == '\0') {
fprintf (stderr, "Error: notmuch part requires at least one search term.\n");
return 1;
}
notmuch = notmuch_database_open (notmuch_config_get_database_path (config),
NOTMUCH_DATABASE_MODE_READ_ONLY);
if (notmuch == NULL)
return 1;
query = notmuch_query_create (notmuch, query_string);
if (query == NULL) {
fprintf (stderr, "Out of memory\n");
return 1;
}
if (notmuch_query_count_messages (query) != 1) {
fprintf (stderr, "Error: search term did not match precisely one message.\n");
return 1;
}
messages = notmuch_query_search_messages (query);
message = notmuch_messages_get (messages);
if (message == NULL) {
fprintf (stderr, "Error: cannot find matching message.\n");
return 1;
}
show_one_part (notmuch_message_get_filename (message), part);
notmuch_query_destroy (query);
notmuch_database_close (notmuch);
return 0;
}
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