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| | /* message-property.cc - Properties are like tags, but (key,value) pairs.
* keys are allowed to repeat.
*
* This file is part of notmuch.
*
* Copyright © 2016 David Bremner
*
* 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 https://www.gnu.org/licenses/ .
*
* Author: David Bremner <david@tethera.net>
*/
#include "notmuch-private.h"
#include "database-private.h"
#include "message-private.h"
notmuch_status_t
notmuch_message_get_property (notmuch_message_t *message, const char *key, const char **value)
{
if (! value)
return NOTMUCH_STATUS_NULL_POINTER;
*value = _notmuch_string_map_get (_notmuch_message_property_map (message), key);
return NOTMUCH_STATUS_SUCCESS;
}
notmuch_status_t
notmuch_message_count_properties (notmuch_message_t *message, const char *key, unsigned int *count)
{
if (! count || ! key || ! message)
return NOTMUCH_STATUS_NULL_POINTER;
notmuch_string_map_t *map;
map = _notmuch_message_property_map (message);
if (! map)
return NOTMUCH_STATUS_NULL_POINTER;
notmuch_string_map_iterator_t *matcher = _notmuch_string_map_iterator_create (map, key, true);
if (! matcher)
return NOTMUCH_STATUS_OUT_OF_MEMORY;
*count = 0;
while (_notmuch_string_map_iterator_valid (matcher)) {
(*count)++;
_notmuch_string_map_iterator_move_to_next (matcher);
}
_notmuch_string_map_iterator_destroy (matcher);
return NOTMUCH_STATUS_SUCCESS;
}
static notmuch_status_t
_notmuch_message_modify_property (notmuch_message_t *message, const char *key, const char *value,
bool delete_it)
{
notmuch_private_status_t private_status;
notmuch_status_t status;
char *term = NULL;
status = _notmuch_database_ensure_writable (notmuch_message_get_database (message));
if (status)
return status;
if (key == NULL || value == NULL)
return NOTMUCH_STATUS_NULL_POINTER;
if (strchr (key, '='))
return NOTMUCH_STATUS_ILLEGAL_ARGUMENT;
term = talloc_asprintf (message, "%s=%s", key, value);
if (delete_it)
private_status = _notmuch_message_remove_term (message, "property", term);
else
private_status = _notmuch_message_add_term (message, "property", term);
if (private_status)
return COERCE_STATUS (private_status,
"Unhandled error modifying message property");
if (! _notmuch_message_frozen (message))
_notmuch_message_sync (message);
if (term)
talloc_free (term);
return NOTMUCH_STATUS_SUCCESS;
}
notmuch_status_t
notmuch_message_add_property (notmuch_message_t *message, const char *key, const char *value)
{
return _notmuch_message_modify_property (message, key, value, false);
}
notmuch_status_t
notmuch_message_remove_property (notmuch_message_t *message, const char *key, const char *value)
{
return _notmuch_message_modify_property (message, key, value, true);
}
static
notmuch_status_t
_notmuch_message_remove_all_properties (notmuch_message_t *message, const char *key, bool prefix)
{
notmuch_status_t status;
const char *term_prefix;
status = _notmuch_database_ensure_writable (notmuch_message_get_database (message));
if (status)
return status;
_notmuch_message_invalidate_metadata (message, "property");
if (key)
term_prefix = talloc_asprintf (message, "%s%s%s", _find_prefix ("property"), key,
prefix ? "" : "=");
else
term_prefix = _find_prefix ("property");
/* XXX better error reporting ? */
_notmuch_message_remove_terms (message, term_prefix);
return NOTMUCH_STATUS_SUCCESS;
}
notmuch_status_t
notmuch_message_remove_all_properties (notmuch_message_t *message, const char *key)
{
return _notmuch_message_remove_all_properties (message, key, false);
}
notmuch_status_t
notmuch_message_remove_all_properties_with_prefix (notmuch_message_t *message, const char *prefix)
{
return _notmuch_message_remove_all_properties (message, prefix, true);
}
notmuch_message_properties_t *
notmuch_message_get_properties (notmuch_message_t *message, const char *key, notmuch_bool_t exact)
{
notmuch_string_map_t *map;
map = _notmuch_message_property_map (message);
return _notmuch_string_map_iterator_create (map, key, exact);
}
notmuch_bool_t
notmuch_message_properties_valid (notmuch_message_properties_t *properties)
{
return _notmuch_string_map_iterator_valid (properties);
}
void
notmuch_message_properties_move_to_next (notmuch_message_properties_t *properties)
{
return _notmuch_string_map_iterator_move_to_next (properties);
}
const char *
notmuch_message_properties_key (notmuch_message_properties_t *properties)
{
return _notmuch_string_map_iterator_key (properties);
}
const char *
notmuch_message_properties_value (notmuch_message_properties_t *properties)
{
return _notmuch_string_map_iterator_value (properties);
}
void
notmuch_message_properties_destroy (notmuch_message_properties_t *properties)
{
_notmuch_string_map_iterator_destroy (properties);
}
|