notmuch_database_t *notmuch;
char *thread_id;
char *subject;
+ GHashTable *authors_hash;
char *authors;
GHashTable *tags;
- notmuch_bool_t has_message;
+ notmuch_message_list_t *message_list;
+ GHashTable *message_hash;
+ int total_messages;
+ int matched_messages;
time_t oldest;
time_t newest;
};
static int
_notmuch_thread_destructor (notmuch_thread_t *thread)
{
+ g_hash_table_unref (thread->authors_hash);
g_hash_table_unref (thread->tags);
+ g_hash_table_unref (thread->message_hash);
return 0;
}
-/* Create a new notmuch_thread_t object for an existing document in
- * the database.
- *
- * Here, 'talloc owner' is an optional talloc context to which the new
- * thread will belong. This allows for the caller to not bother
- * calling notmuch_thread_destroy on the thread, and know that all
- * memory will be reclaimed with 'talloc_owner' is freed. The caller
- * still can call notmuch_thread_destroy when finished with the
- * thread if desired.
- *
- * The 'talloc_owner' argument can also be NULL, in which case the
- * caller *is* responsible for calling notmuch_thread_destroy.
- *
- * This function returns NULL in the case of any error.
- */
-notmuch_thread_t *
-_notmuch_thread_create (const void *talloc_owner,
- notmuch_database_t *notmuch,
- const char *thread_id)
+static void
+_thread_add_author (notmuch_thread_t *thread,
+ const char *author)
{
- notmuch_thread_t *thread;
+ if (author == NULL)
+ return;
- thread = talloc (talloc_owner, notmuch_thread_t);
- if (unlikely (thread == NULL))
- return NULL;
+ if (g_hash_table_lookup_extended (thread->authors_hash,
+ author, NULL, NULL))
+ return;
- talloc_set_destructor (thread, _notmuch_thread_destructor);
+ g_hash_table_insert (thread->authors_hash, xstrdup (author), NULL);
- thread->notmuch = notmuch;
- thread->thread_id = talloc_strdup (thread, thread_id);
- thread->subject = NULL;
- thread->authors = NULL;
- thread->tags = g_hash_table_new_full (g_str_hash, g_str_equal,
- free, NULL);
-
- thread->has_message = 0;
- thread->oldest = 0;
- thread->newest = 0;
-
- return thread;
-}
-
-const char *
-notmuch_thread_get_thread_id (notmuch_thread_t *thread)
-{
- return thread->thread_id;
+ if (thread->authors)
+ thread->authors = talloc_asprintf (thread, "%s, %s",
+ thread->authors,
+ author);
+ else
+ thread->authors = talloc_strdup (thread, author);
}
-void
-_notmuch_thread_add_message (notmuch_thread_t *thread,
- notmuch_message_t *message)
+/* Add 'message' as a message that belongs to 'thread'.
+ *
+ * The 'thread' will talloc_steal the 'message' and hold onto a
+ * reference to it.
+ */
+static void
+_thread_add_message (notmuch_thread_t *thread,
+ notmuch_message_t *message)
{
notmuch_tags_t *tags;
const char *tag;
- time_t date;
InternetAddressList *list;
InternetAddress *address;
const char *from, *author;
+ _notmuch_message_list_add_message (thread->message_list,
+ talloc_steal (thread, message));
+ thread->total_messages++;
+
+ g_hash_table_insert (thread->message_hash,
+ xstrdup (notmuch_message_get_message_id (message)),
+ message);
+
from = notmuch_message_get_header (message, "from");
list = internet_address_list_parse_string (from);
if (list) {
mailbox = INTERNET_ADDRESS_MAILBOX (address);
author = internet_address_mailbox_get_addr (mailbox);
}
- if (author) {
- if (thread->authors)
- thread->authors = talloc_asprintf (thread, "%s, %s",
- thread->authors,
- author);
- else
- thread->authors = talloc_strdup (thread, author);
- }
+ _thread_add_author (thread, author);
}
g_object_unref (G_OBJECT (list));
}
- if (! thread->subject) {
- const char *subject;
- subject = notmuch_message_get_header (message, "subject");
- thread->subject = talloc_strdup (thread, subject);
- }
-
for (tags = notmuch_message_get_tags (message);
- notmuch_tags_has_more (tags);
- notmuch_tags_advance (tags))
+ notmuch_tags_valid (tags);
+ notmuch_tags_move_to_next (tags))
{
tag = notmuch_tags_get (tags);
g_hash_table_insert (thread->tags, xstrdup (tag), NULL);
}
+}
+
+static void
+_thread_add_matched_message (notmuch_thread_t *thread,
+ notmuch_message_t *message)
+{
+ time_t date;
+ notmuch_message_t *hashed_message;
date = notmuch_message_get_date (message);
- if (date < thread->oldest || ! thread->has_message)
+ if (date < thread->oldest || ! thread->matched_messages)
thread->oldest = date;
- if (date > thread->newest || ! thread->has_message)
+ if (date > thread->newest || ! thread->matched_messages)
thread->newest = date;
- thread->has_message = 1;
+ if (! thread->subject) {
+ const char *subject;
+
+ subject = notmuch_message_get_header (message, "subject");
+
+ if ((strncasecmp (subject, "Re: ", 4) == 0) ||
+ (strncasecmp (subject, "Aw: ", 4) == 0) ||
+ (strncasecmp (subject, "Vs: ", 4) == 0) ||
+ (strncasecmp (subject, "Sv: ", 4) == 0))
+ {
+ thread->subject = talloc_strdup (thread, subject + 4);
+ }
+ else
+ {
+ thread->subject = talloc_strdup (thread, subject);
+ }
+ }
+
+ thread->matched_messages++;
+
+ if (g_hash_table_lookup_extended (thread->message_hash,
+ notmuch_message_get_message_id (message), NULL,
+ (void **) &hashed_message)) {
+ notmuch_message_set_flag (hashed_message,
+ NOTMUCH_MESSAGE_FLAG_MATCH, 1);
+ }
+}
+
+static void
+_resolve_thread_relationships (unused (notmuch_thread_t *thread))
+{
+ notmuch_message_node_t **prev, *node;
+ notmuch_message_t *message, *parent;
+ const char *in_reply_to;
+
+ prev = &thread->message_list->head;
+ while ((node = *prev)) {
+ message = node->message;
+ in_reply_to = _notmuch_message_get_in_reply_to (message);
+ if (in_reply_to && strlen (in_reply_to) &&
+ g_hash_table_lookup_extended (thread->message_hash,
+ in_reply_to, NULL,
+ (void **) &parent))
+ {
+ *prev = node->next;
+ if (thread->message_list->tail == &node->next)
+ thread->message_list->tail = prev;
+ node->next = NULL;
+ _notmuch_message_add_reply (parent, node);
+ } else {
+ prev = &((*prev)->next);
+ }
+ }
+
+ /* XXX: After scanning through the entire list looking for parents
+ * via "In-Reply-To", we should do a second pass that looks at the
+ * list of messages IDs in the "References" header instead. (And
+ * for this the parent would be the "deepest" message of all the
+ * messages found in the "References" list.)
+ *
+ * Doing this will allow messages and sub-threads to be positioned
+ * correctly in the thread even when an intermediate message is
+ * missing from the thread.
+ */
+}
+
+/* Create a new notmuch_thread_t object for the given thread ID,
+ * treating any messages matching 'query_string' as "matched".
+ *
+ * Creating the thread will trigger two database searches. The first
+ * is for all messages belonging to the thread, (to get the first
+ * subject line, the total count of messages, and all authors). The
+ * second search is for all messages that are in the thread and that
+ * also match the given query_string. This is to allow for a separate
+ * count of matched messages, and to allow a viewer to display these
+ * messages differently.
+ *
+ * Here, 'ctx' is talloc context for the resulting thread object.
+ *
+ * This function returns NULL in the case of any error.
+ */
+notmuch_thread_t *
+_notmuch_thread_create (void *ctx,
+ notmuch_database_t *notmuch,
+ const char *thread_id,
+ const char *query_string,
+ notmuch_sort_t sort)
+{
+ notmuch_thread_t *thread;
+ const char *thread_id_query_string;
+ notmuch_query_t *thread_id_query;
+
+ notmuch_messages_t *messages;
+ notmuch_message_t *message;
+ notmuch_bool_t matched_is_subset_of_thread;
+
+ thread_id_query_string = talloc_asprintf (ctx, "thread:%s", thread_id);
+ if (unlikely (query_string == NULL))
+ return NULL;
+
+ /* Under normal circumstances we need to do two database
+ * queries. One is for the thread itself (thread_id_query_string)
+ * and the second is to determine which messages in that thread
+ * match the original query (matched_query_string).
+ *
+ * But under two circumstances, we use only the
+ * thread_id_query_string:
+ *
+ * 1. If the original query_string *is* just the thread
+ * specification.
+ *
+ * 2. If the original query_string matches all messages ("" or
+ * "*").
+ *
+ * In either of these cases, we can be more efficient by running
+ * just the thread_id query (since we know all messages in the
+ * thread will match the query_string).
+ *
+ * Beyond the performance advantage, in the second case, it's
+ * important to not try to create a concatenated query because our
+ * parser handles "" and "*" as special cases and will not do the
+ * right thing with a query string of "* and thread:<foo>".
+ **/
+ matched_is_subset_of_thread = 1;
+ if (strcmp (query_string, thread_id_query_string) == 0 ||
+ strcmp (query_string, "") == 0 ||
+ strcmp (query_string, "*") == 0)
+ {
+ matched_is_subset_of_thread = 0;
+ }
+
+ thread_id_query = notmuch_query_create (notmuch, thread_id_query_string);
+ if (unlikely (thread_id_query == NULL))
+ return NULL;
+
+ thread = talloc (ctx, notmuch_thread_t);
+ if (unlikely (thread == NULL))
+ return NULL;
+
+ talloc_set_destructor (thread, _notmuch_thread_destructor);
+
+ thread->notmuch = notmuch;
+ thread->thread_id = talloc_strdup (thread, thread_id);
+ thread->subject = NULL;
+ thread->authors_hash = g_hash_table_new_full (g_str_hash, g_str_equal,
+ free, NULL);
+ thread->authors = NULL;
+ thread->tags = g_hash_table_new_full (g_str_hash, g_str_equal,
+ free, NULL);
+
+ thread->message_list = _notmuch_message_list_create (thread);
+ if (unlikely (thread->message_list == NULL))
+ return NULL;
+
+ thread->message_hash = g_hash_table_new_full (g_str_hash, g_str_equal,
+ free, NULL);
+
+ thread->total_messages = 0;
+ thread->matched_messages = 0;
+ thread->oldest = 0;
+ thread->newest = 0;
+
+ notmuch_query_set_sort (thread_id_query, sort);
+
+ for (messages = notmuch_query_search_messages (thread_id_query);
+ notmuch_messages_valid (messages);
+ notmuch_messages_move_to_next (messages))
+ {
+ message = notmuch_messages_get (messages);
+
+ _thread_add_message (thread, message);
+
+ if (! matched_is_subset_of_thread)
+ _thread_add_matched_message (thread, message);
+
+ _notmuch_message_close (message);
+ }
+
+ notmuch_query_destroy (thread_id_query);
+
+ if (matched_is_subset_of_thread)
+ {
+ const char *matched_query_string;
+ notmuch_query_t *matched_query;
+
+ matched_query_string = talloc_asprintf (ctx, "%s AND (%s)",
+ thread_id_query_string,
+ query_string);
+ if (unlikely (matched_query_string == NULL))
+ return NULL;
+
+ matched_query = notmuch_query_create (notmuch, matched_query_string);
+ if (unlikely (matched_query == NULL))
+ return NULL;
+
+ notmuch_query_set_sort (matched_query, sort);
+
+ for (messages = notmuch_query_search_messages (matched_query);
+ notmuch_messages_valid (messages);
+ notmuch_messages_move_to_next (messages))
+ {
+ message = notmuch_messages_get (messages);
+ _thread_add_matched_message (thread, message);
+ _notmuch_message_close (message);
+ }
+
+ notmuch_query_destroy (matched_query);
+ }
+
+ _resolve_thread_relationships (thread);
+
+ return thread;
+}
+
+notmuch_messages_t *
+notmuch_thread_get_toplevel_messages (notmuch_thread_t *thread)
+{
+ return _notmuch_messages_create (thread->message_list);
+}
+
+const char *
+notmuch_thread_get_thread_id (notmuch_thread_t *thread)
+{
+ return thread->thread_id;
+}
+
+int
+notmuch_thread_get_total_messages (notmuch_thread_t *thread)
+{
+ return thread->total_messages;
+}
+
+int
+notmuch_thread_get_matched_messages (notmuch_thread_t *thread)
+{
+ return thread->matched_messages;
}
const char *