#include <sys/time.h>
#include <signal.h>
-#include <xapian.h>
#include <glib.h> /* g_free, GPtrArray, GHashTable */
*
* type: mail
*
- * id: Unique ID of mail, (from Message-ID header or generated
- * as "notmuch-sha1-<sha1_sum_of_entire_file>.
+ * id: Unique ID of mail. This is from the Message-ID header
+ * if present and not too long (see NOTMUCH_MESSAGE_ID_MAX).
+ * If it's present and too long, then we use
+ * "notmuch-sha1-<sha1_sum_of_message_id>".
+ * If this header is not present, we use
+ * "notmuch-sha1-<sha1_sum_of_entire_file>".
*
* thread: The ID of the thread to which the mail belongs
*
*
* thread_id_* A pre-allocated thread ID for a particular
* message. This is actually an arbitarily large
- * family of metadata name. Any particular name
- * is formed by concatenating "thread_id_" with a
- * message ID. The value stored is a thread ID.
+ * family of metadata name. Any particular name is
+ * formed by concatenating "thread_id_" with a message
+ * ID (or the SHA1 sum of a message ID if it is very
+ * long---see description of 'id' in the mail
+ * document). The value stored is a thread ID.
*
* These thread ID metadata values are stored
* whenever a message references a parent message
* nearly universal to all mail messages).
*/
-prefix_t BOOLEAN_PREFIX_INTERNAL[] = {
+static prefix_t BOOLEAN_PREFIX_INTERNAL[] = {
{ "type", "T" },
{ "reference", "XREFERENCE" },
{ "replyto", "XREPLYTO" },
{ "directory-direntry", "XDDIRENTRY" },
};
-prefix_t BOOLEAN_PREFIX_EXTERNAL[] = {
+static prefix_t BOOLEAN_PREFIX_EXTERNAL[] = {
{ "thread", "G" },
{ "tag", "K" },
{ "is", "K" },
{ "id", "Q" }
};
-prefix_t PROBABILISTIC_PREFIX[]= {
+static prefix_t PROBABILISTIC_PREFIX[]= {
{ "from", "XFROM" },
{ "to", "XTO" },
{ "attachment", "XATTACHMENT" },
return notmuch->xapian_db->get_document (doc_id);
}
+/* Generate a compressed version of 'message_id' of the form:
+ *
+ * notmuch-sha1-<sha1_sum_of_message_id>
+ */
+static char *
+_message_id_compressed (void *ctx, const char *message_id)
+{
+ char *sha1, *compressed;
+
+ sha1 = notmuch_sha1_of_string (message_id);
+
+ compressed = talloc_asprintf (ctx, "notmuch-sha1-%s", sha1);
+ free (sha1);
+
+ return compressed;
+}
+
notmuch_message_t *
notmuch_database_find_message (notmuch_database_t *notmuch,
const char *message_id)
notmuch_private_status_t status;
unsigned int doc_id;
- status = _notmuch_database_find_unique_doc_id (notmuch, "id",
- message_id, &doc_id);
+ if (strlen (message_id) > NOTMUCH_MESSAGE_ID_MAX)
+ message_id = _message_id_compressed (notmuch, message_id);
- if (status == NOTMUCH_PRIVATE_STATUS_NO_DOCUMENT_FOUND)
- return NULL;
+ try {
+ status = _notmuch_database_find_unique_doc_id (notmuch, "id",
+ message_id, &doc_id);
+
+ if (status == NOTMUCH_PRIVATE_STATUS_NO_DOCUMENT_FOUND)
+ return NULL;
- return _notmuch_message_create (notmuch, notmuch, doc_id, NULL);
+ return _notmuch_message_create (notmuch, notmuch, doc_id, NULL);
+ } catch (const Xapian::Error &error) {
+ fprintf (stderr, "A Xapian exception occurred finding message: %s.\n",
+ error.get_msg().c_str());
+ notmuch->exception_reported = TRUE;
+ return NULL;
+ }
}
/* Advance 'str' past any whitespace or RFC 822 comments. A comment is
}
}
+ notmuch->last_doc_id = notmuch->xapian_db->get_lastdocid ();
last_thread_id = notmuch->xapian_db->get_metadata ("last_thread_id");
if (last_thread_id.empty ()) {
notmuch->last_thread_id = 0;
{
notmuch_status_t status;
- return _notmuch_directory_create (notmuch, path, &status);
+ try {
+ return _notmuch_directory_create (notmuch, path, &status);
+ } catch (const Xapian::Error &error) {
+ fprintf (stderr, "A Xapian exception occurred getting directory: %s.\n",
+ error.get_msg().c_str());
+ notmuch->exception_reported = TRUE;
+ return NULL;
+ }
+}
+
+/* Allocate a document ID that satisfies the following criteria:
+ *
+ * 1. The ID does not exist for any document in the Xapian database
+ *
+ * 2. The ID was not previously returned from this function
+ *
+ * 3. The ID is the smallest integer satisfying (1) and (2)
+ *
+ * This function will trigger an internal error if these constraints
+ * cannot all be satisfied, (that is, the pool of available document
+ * IDs has been exhausted).
+ */
+unsigned int
+_notmuch_database_generate_doc_id (notmuch_database_t *notmuch)
+{
+ assert (notmuch->last_doc_id >= notmuch->xapian_db->get_lastdocid ());
+
+ notmuch->last_doc_id++;
+
+ if (notmuch->last_doc_id == 0)
+ INTERNAL_ERROR ("Xapian document IDs are exhausted.\n");
+
+ return notmuch->last_doc_id;
}
static const char *
static char *
_get_metadata_thread_id_key (void *ctx, const char *message_id)
{
- return talloc_asprintf (ctx, "thread_id_%s", message_id);
+ if (strlen (message_id) > NOTMUCH_MESSAGE_ID_MAX)
+ message_id = _message_id_compressed (ctx, message_id);
+
+ return talloc_asprintf (ctx, NOTMUCH_METADATA_THREAD_ID_PREFIX "%s",
+ message_id);
}
/* Find the thread ID to which the message with 'message_id' belongs.
talloc_free (metadata_key);
- return thread_id;
+ return talloc_strdup (ctx, thread_id);
}
static notmuch_status_t
if (message_id == NULL)
message_id = talloc_strdup (message_file, header);
- /* Reject a Message ID that's too long. */
- if (message_id && strlen (message_id) + 1 > NOTMUCH_TERM_MAX) {
+ /* If a message ID is too long, substitute its sha1 instead. */
+ if (message_id && strlen (message_id) > NOTMUCH_MESSAGE_ID_MAX) {
+ char *compressed = _message_id_compressed (message_file,
+ message_id);
talloc_free (message_id);
- message_id = NULL;
+ message_id = compressed;
}
}
_notmuch_message_add_filename (message, filename);
+ /* This is a new message or it has a new filename and as such,
+ * its tags in database either do not exists or might be out
+ * of date. We assign the tags later in notmuch new, but until
+ * then we should not synchronize the tags back to the maildir
+ * flags (if notmuch is configured to do so). */
+ notmuch_message_set_flag(message, NOTMUCH_MESSAGE_FLAG_TAGS_INVALID, TRUE);
+
/* Is this a newly created message object? */
if (private_status == NOTMUCH_PRIVATE_STATUS_NO_DOCUMENT_FOUND) {
_notmuch_message_add_term (message, "type", "mail");
_notmuch_message_sync (message);
} catch (const Xapian::Error &error) {
fprintf (stderr, "A Xapian exception occurred adding message: %s.\n",
- error.get_description().c_str());
+ error.get_msg().c_str());
notmuch->exception_reported = TRUE;
ret = NOTMUCH_STATUS_XAPIAN_EXCEPTION;
goto DONE;
DONE:
if (message) {
- if (ret == NOTMUCH_STATUS_SUCCESS && message_ret)
+ if ((ret == NOTMUCH_STATUS_SUCCESS ||
+ ret == NOTMUCH_STATUS_DUPLICATE_MESSAGE_ID) && message_ret)
*message_ret = message;
else
notmuch_message_destroy (message);
const char *filename)
{
Xapian::WritableDatabase *db;
- void *local = talloc_new (notmuch);
+ void *local;
const char *prefix = _find_prefix ("file-direntry");
char *direntry, *term;
Xapian::PostingIterator i, end;
if (status)
return status;
+ local = talloc_new (notmuch);
+
db = static_cast <Xapian::WritableDatabase *> (notmuch->xapian_db);
- status = _notmuch_database_filename_to_direntry (local, notmuch,
- filename, &direntry);
- if (status)
- return status;
+ try {
- term = talloc_asprintf (notmuch, "%s%s", prefix, direntry);
+ status = _notmuch_database_filename_to_direntry (local, notmuch,
+ filename, &direntry);
+ if (status)
+ return status;
- find_doc_ids_for_term (notmuch, term, &i, &end);
+ term = talloc_asprintf (notmuch, "%s%s", prefix, direntry);
- for ( ; i != end; i++) {
- Xapian::TermIterator j;
+ find_doc_ids_for_term (notmuch, term, &i, &end);
- document = find_document_for_doc_id (notmuch, *i);
+ for ( ; i != end; i++) {
+ Xapian::TermIterator j;
- document.remove_term (term);
+ document = find_document_for_doc_id (notmuch, *i);
- j = document.termlist_begin ();
- j.skip_to (prefix);
+ document.remove_term (term);
- /* Was this the last file-direntry in the message? */
- if (j == document.termlist_end () ||
- strncmp ((*j).c_str (), prefix, strlen (prefix)))
- {
- db->delete_document (document.get_docid ());
- status = NOTMUCH_STATUS_SUCCESS;
- } else {
- db->replace_document (document.get_docid (), document);
- status = NOTMUCH_STATUS_DUPLICATE_MESSAGE_ID;
+ j = document.termlist_begin ();
+ j.skip_to (prefix);
+
+ /* Was this the last file-direntry in the message? */
+ if (j == document.termlist_end () ||
+ strncmp ((*j).c_str (), prefix, strlen (prefix)))
+ {
+ db->delete_document (document.get_docid ());
+ status = NOTMUCH_STATUS_SUCCESS;
+ } else {
+ db->replace_document (document.get_docid (), document);
+ status = NOTMUCH_STATUS_DUPLICATE_MESSAGE_ID;
+ }
}
+ } catch (const Xapian::Error &error) {
+ fprintf (stderr, "Error: A Xapian exception occurred removing message: %s\n",
+ error.get_msg().c_str());
+ notmuch->exception_reported = TRUE;
+ status = NOTMUCH_STATUS_XAPIAN_EXCEPTION;
}
talloc_free (local);
notmuch_database_get_all_tags (notmuch_database_t *db)
{
Xapian::TermIterator i, end;
- i = db->xapian_db->allterms_begin();
- end = db->xapian_db->allterms_end();
- return _notmuch_convert_tags(db, i, end);
+
+ try {
+ i = db->xapian_db->allterms_begin();
+ end = db->xapian_db->allterms_end();
+ return _notmuch_convert_tags(db, i, end);
+ } catch (const Xapian::Error &error) {
+ fprintf (stderr, "A Xapian exception occurred getting tags: %s.\n",
+ error.get_msg().c_str());
+ db->exception_reported = TRUE;
+ return NULL;
+ }
}
projects / notmuch / blobdiff