#include <xapian.h>
struct _notmuch_message {
+ notmuch_database_t *notmuch;
+ Xapian::docid doc_id;
+ char *message_id;
+ char *filename;
Xapian::Document doc;
};
Xapian::TermIterator iterator_end;
};
+struct _notmuch_thread_ids {
+ char *current;
+ char *next;
+};
+
+#define ARRAY_SIZE(arr) (sizeof (arr) / sizeof (arr[0]))
+
+/* These prefix values are specifically chosen to be compatible
+ * with sup, (http://sup.rubyforge.org), written by
+ * William Morgan <wmorgan-sup@masanjin.net>, and released
+ * under the GNU GPL v2.
+ */
+
+typedef struct {
+ const char *name;
+ const char *prefix;
+} prefix_t;
+
+prefix_t NORMAL_PREFIX[] = {
+ { "subject", "S" },
+ { "body", "B" },
+ { "from_name", "FN" },
+ { "to_name", "TN" },
+ { "name", "N" },
+ { "attachment", "A" }
+};
+
+prefix_t BOOLEAN_PREFIX[] = {
+ { "type", "K" },
+ { "from_email", "FE" },
+ { "to_email", "TE" },
+ { "email", "E" },
+ { "date", "D" },
+ { "label", "L" },
+ { "tag", "L" },
+ { "source_id", "I" },
+ { "attachment_extension", "O" },
+ { "msgid", "Q" },
+ { "thread", "H" },
+ { "ref", "R" }
+};
+
+const char *
+_find_prefix (const char *name)
+{
+ unsigned int i;
+
+ for (i = 0; i < ARRAY_SIZE (NORMAL_PREFIX); i++)
+ if (strcmp (name, NORMAL_PREFIX[i].name) == 0)
+ return NORMAL_PREFIX[i].prefix;
+
+ for (i = 0; i < ARRAY_SIZE (BOOLEAN_PREFIX); i++)
+ if (strcmp (name, BOOLEAN_PREFIX[i].name) == 0)
+ return BOOLEAN_PREFIX[i].prefix;
+
+ return "";
+}
+
+/* We end up having to call the destructor explicitly because we had
+ * to use "placement new" in order to initialize C++ objects within a
+ * block that we allocated with talloc. So C++ is making talloc
+ * slightly less simple to use, (we wouldn't need
+ * talloc_set_destructor at all otherwise).
+ */
static int
-_notmuch_message_destroy (notmuch_message_t *message)
+_notmuch_message_destructor (notmuch_message_t *message)
{
message->doc.~Document ();
}
notmuch_message_t *
-_notmuch_message_create (notmuch_results_t *owner,
+_notmuch_message_create (const void *talloc_owner,
notmuch_database_t *notmuch,
- Xapian::docid doc_id)
+ unsigned int doc_id)
{
notmuch_message_t *message;
- message = talloc (owner, notmuch_message_t);
+ message = talloc (talloc_owner, notmuch_message_t);
if (unlikely (message == NULL))
return NULL;
+ message->notmuch = notmuch;
+ message->doc_id = doc_id;
+ message->message_id = NULL; /* lazily created */
+ message->filename = NULL; /* lazily created */
new (&message->doc) Xapian::Document;
- talloc_set_destructor (message, _notmuch_message_destroy);
+ talloc_set_destructor (message, _notmuch_message_destructor);
message->doc = notmuch->xapian_db->get_document (doc_id);
{
Xapian::TermIterator i;
+ if (message->message_id)
+ return message->message_id;
+
i = message->doc.termlist_begin ();
- i.skip_to ("Q");
- if (i != message->doc.termlist_end ())
- return talloc_strdup (message, (*i).c_str () + 1);
- else
+ i.skip_to (_find_prefix ("msgid"));
+
+ /* XXX: This should really be an internal error, but we'll need to
+ * fix the add_message side of things first. */
+ if (i == message->doc.termlist_end ())
return NULL;
+
+ message->message_id = talloc_strdup (message, (*i).c_str () + 1);
+ return message->message_id;
+}
+
+/* Set the filename for 'message' to 'filename'.
+ *
+ * XXX: We should still figure out what we want to do for multiple
+ * files with identical message IDs. We will probably want to store a
+ * list of filenames here, (so that this will be "add_filename"
+ * instead of "set_filename"). Which would make this very similar to
+ * add_thread_ids.
+ *
+ * This change will not be reflected in the database until the next
+ * call to _notmuch_message_set_sync. */
+void
+_notmuch_message_set_filename (notmuch_message_t *message,
+ const char *filename)
+{
+ if (message->filename)
+ talloc_free (message->filename);
+ message->doc.set_data (filename);
+}
+
+const char *
+notmuch_message_get_filename (notmuch_message_t *message)
+{
+ std::string filename_str;
+
+ if (message->filename)
+ return message->filename;
+
+ filename_str = message->doc.get_data ();
+ message->filename = talloc_strdup (message, filename_str.c_str ());
+
+ return message->filename;
}
+/* We end up having to call the destructors explicitly because we had
+ * to use "placement new" in order to initialize C++ objects within a
+ * block that we allocated with talloc. So C++ is making talloc
+ * slightly less simple to use, (we wouldn't need
+ * talloc_set_destructor at all otherwise).
+ */
static int
-_notmuch_tags_destroy (notmuch_tags_t *tags)
+_notmuch_tags_destructor (notmuch_tags_t *tags)
{
tags->iterator.~TermIterator ();
tags->iterator_end.~TermIterator ();
new (&tags->iterator) Xapian::TermIterator;
new (&tags->iterator_end) Xapian::TermIterator;
- talloc_set_destructor (tags, _notmuch_tags_destroy);
+ talloc_set_destructor (tags, _notmuch_tags_destructor);
tags->iterator = message->doc.termlist_begin ();
- tags->iterator.skip_to ("L");
+ tags->iterator.skip_to (_find_prefix ("tag"));
tags->iterator_end = message->doc.termlist_end ();
return tags;
}
+notmuch_thread_ids_t *
+notmuch_message_get_thread_ids (notmuch_message_t *message)
+{
+ notmuch_thread_ids_t *thread_ids;
+ std::string id_str;
+
+ thread_ids = talloc (message, notmuch_thread_ids_t);
+ if (unlikely (thread_ids == NULL))
+ return NULL;
+
+ id_str = message->doc.get_value (NOTMUCH_VALUE_THREAD);
+ thread_ids->next = talloc_strdup (message, id_str.c_str ());
+
+ /* Initialize thread_ids->current and terminate first ID. */
+ notmuch_thread_ids_advance (thread_ids);
+
+ return thread_ids;
+}
+
+void
+_notmuch_message_set_date (notmuch_message_t *message,
+ const char *date)
+{
+ time_t time_value;
+
+ time_value = notmuch_parse_date (date, NULL);
+
+ message->doc.add_value (NOTMUCH_VALUE_DATE,
+ Xapian::sortable_serialise (time_value));
+}
+
+void
+_notmuch_message_add_thread_id (notmuch_message_t *message,
+ const char *thread_id)
+{
+ std::string id_str;
+
+ _notmuch_message_add_term (message, "thread", thread_id);
+
+ id_str = message->doc.get_value (NOTMUCH_VALUE_THREAD);
+
+ if (id_str.empty ()) {
+ message->doc.add_value (NOTMUCH_VALUE_THREAD, thread_id);
+ } else {
+ size_t pos;
+
+ /* Think about using a hash here if there's any performance
+ * problem. */
+ pos = id_str.find (thread_id);
+ if (pos == std::string::npos) {
+ id_str.append (",");
+ id_str.append (thread_id);
+ message->doc.add_value (NOTMUCH_VALUE_THREAD, id_str);
+ }
+ }
+}
+
+static void
+thread_id_generate (thread_id_t *thread_id)
+{
+ static int seeded = 0;
+ FILE *dev_random;
+ uint32_t value;
+ char *s;
+ int i;
+
+ if (! seeded) {
+ dev_random = fopen ("/dev/random", "r");
+ if (dev_random == NULL) {
+ srand (time (NULL));
+ } else {
+ fread ((void *) &value, sizeof (value), 1, dev_random);
+ srand (value);
+ fclose (dev_random);
+ }
+ seeded = 1;
+ }
+
+ s = thread_id->str;
+ for (i = 0; i < NOTMUCH_THREAD_ID_DIGITS; i += 8) {
+ value = rand ();
+ sprintf (s, "%08x", value);
+ s += 8;
+ }
+}
+
+void
+_notmuch_message_ensure_thread_id (notmuch_message_t *message)
+{
+ /* If not part of any existing thread, generate a new thread_id. */
+ thread_id_t thread_id;
+
+ thread_id_generate (&thread_id);
+ _notmuch_message_add_term (message, "thread", thread_id.str);
+ message->doc.add_value (NOTMUCH_VALUE_THREAD, thread_id.str);
+}
+
+/* Synchronize changes made to message->doc out into the database. */
+void
+_notmuch_message_sync (notmuch_message_t *message)
+{
+ Xapian::WritableDatabase *db = message->notmuch->xapian_db;
+
+ db->replace_document (message->doc_id, message->doc);
+}
+
+/* Add a name:value term to 'message', (the actual term will be
+ * encoded by prefixing the value with a short prefix). See
+ * NORMAL_PREFIX and BOOLEAN_PREFIX arrays for the mapping of term
+ * names to prefix values.
+ *
+ * This change will not be reflected in the database until the next
+ * call to _notmuch_message_set_sync. */
+notmuch_private_status_t
+_notmuch_message_add_term (notmuch_message_t *message,
+ const char *prefix_name,
+ const char *value)
+{
+
+ char *term;
+
+ if (value == NULL)
+ return NOTMUCH_PRIVATE_STATUS_NULL_POINTER;
+
+ term = talloc_asprintf (message, "%s%s",
+ _find_prefix (prefix_name), value);
+
+ if (strlen (term) > NOTMUCH_TERM_MAX)
+ return NOTMUCH_PRIVATE_STATUS_TERM_TOO_LONG;
+
+ message->doc.add_term (term);
+
+ talloc_free (term);
+
+ return NOTMUCH_PRIVATE_STATUS_SUCCESS;
+}
+
+/* Remove a name:value term from 'message', (the actual term will be
+ * encoded by prefixing the value with a short prefix). See
+ * NORMAL_PREFIX and BOOLEAN_PREFIX arrays for the mapping of term
+ * names to prefix values.
+ *
+ * This change will not be reflected in the database until the next
+ * call to _notmuch_message_set_sync. */
+notmuch_private_status_t
+_notmuch_message_remove_term (notmuch_message_t *message,
+ const char *prefix_name,
+ const char *value)
+{
+ char *term;
+
+ if (value == NULL)
+ return NOTMUCH_PRIVATE_STATUS_NULL_POINTER;
+
+ term = talloc_asprintf (message, "%s%s",
+ _find_prefix (prefix_name), value);
+
+ if (strlen (term) > NOTMUCH_TERM_MAX)
+ return NOTMUCH_PRIVATE_STATUS_TERM_TOO_LONG;
+
+ message->doc.remove_term (term);
+
+ talloc_free (term);
+
+ return NOTMUCH_PRIVATE_STATUS_SUCCESS;
+}
+
+notmuch_status_t
+notmuch_message_add_tag (notmuch_message_t *message, const char *tag)
+{
+ notmuch_private_status_t status;
+
+ if (tag == NULL)
+ return NOTMUCH_STATUS_NULL_POINTER;
+
+ if (strlen (tag) > NOTMUCH_TAG_MAX)
+ return NOTMUCH_STATUS_TAG_TOO_LONG;
+
+ status = _notmuch_message_add_term (message, "tag", tag);
+ if (status) {
+ fprintf (stderr, "Internal error: _notmuch_message_add_term return unexpected value: %d\n",
+ status);
+ exit (1);
+ }
+
+ _notmuch_message_sync (message);
+
+ return NOTMUCH_STATUS_SUCCESS;
+}
+
+notmuch_status_t
+notmuch_message_remove_tag (notmuch_message_t *message, const char *tag)
+{
+ notmuch_private_status_t status;
+
+ if (tag == NULL)
+ return NOTMUCH_STATUS_NULL_POINTER;
+
+ if (strlen (tag) > NOTMUCH_TAG_MAX)
+ return NOTMUCH_STATUS_TAG_TOO_LONG;
+
+ status = _notmuch_message_remove_term (message, "tag", tag);
+ if (status) {
+ fprintf (stderr, "Internal error: _notmuch_message_remove_term return unexpected value: %d\n",
+ status);
+ exit (1);
+ }
+
+ _notmuch_message_sync (message);
+
+ return NOTMUCH_STATUS_SUCCESS;
+}
+
+void
+notmuch_message_destroy (notmuch_message_t *message)
+{
+ talloc_free (message);
+}
+
notmuch_bool_t
notmuch_tags_has_more (notmuch_tags_t *tags)
{
{
tags->iterator++;
}
+
+void
+notmuch_tags_destroy (notmuch_tags_t *tags)
+{
+ talloc_free (tags);
+}
+
+notmuch_bool_t
+notmuch_thread_ids_has_more (notmuch_thread_ids_t *thread_ids)
+{
+ if (thread_ids->current == NULL || *thread_ids->current == '\0')
+ return FALSE;
+ else
+ return TRUE;
+}
+
+const char *
+notmuch_thread_ids_get (notmuch_thread_ids_t *thread_ids)
+{
+ return thread_ids->current;
+}
+
+void
+notmuch_thread_ids_advance (notmuch_thread_ids_t *thread_ids)
+{
+ thread_ids->current = strsep (&thread_ids->next, ",");
+}
+
+void
+notmuch_thread_ids_destroy (notmuch_thread_ids_t *thread_ids)
+{
+ talloc_free (thread_ids);
+}
projects / notmuch / blobdiff