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lib: isolate n_d_add_message and helper functions into own file
'database.cc' is becoming a monster, and it's hard to follow what the various static functions are used for. It turns out that about 1/3 of this file notmuch_database_add_message and helper functions not used by any other function. This commit isolates this code into it's own file. Some side effects of this refactoring: - find_doc_ids becomes the non-static (but still private) _notmuch_database_find_doc_ids - a few instances of 'string' have 'std::' prepended, avoiding the need for 'using namespace std;' in the new file.
This commit is contained in:
David Bremner
parent
4a101ec7aa
commit
4034a7cec7
4 changed files with 735 additions and 725 deletions
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@ -50,6 +50,7 @@ libnotmuch_cxx_srcs = \
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$(dir)/directory.cc \
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$(dir)/index.cc \
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$(dir)/message.cc \
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$(dir)/add-message.cc \
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$(dir)/message-property.cc \
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$(dir)/query.cc \
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$(dir)/query-fp.cc \
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721
lib/add-message.cc
Normal file
721
lib/add-message.cc
Normal file
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@ -0,0 +1,721 @@
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#include "database-private.h"
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/* Advance 'str' past any whitespace or RFC 822 comments. A comment is
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* a (potentially nested) parenthesized sequence with '\' used to
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* escape any character (including parentheses).
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*
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* If the sequence to be skipped continues to the end of the string,
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* then 'str' will be left pointing at the final terminating '\0'
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* character.
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*/
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static void
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skip_space_and_comments (const char **str)
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{
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const char *s;
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s = *str;
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while (*s && (isspace (*s) || *s == '(')) {
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while (*s && isspace (*s))
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s++;
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if (*s == '(') {
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int nesting = 1;
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s++;
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while (*s && nesting) {
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if (*s == '(') {
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nesting++;
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} else if (*s == ')') {
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nesting--;
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} else if (*s == '\\') {
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if (*(s+1))
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s++;
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}
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s++;
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}
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}
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}
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*str = s;
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}
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/* Parse an RFC 822 message-id, discarding whitespace, any RFC 822
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* comments, and the '<' and '>' delimiters.
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*
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* If not NULL, then *next will be made to point to the first character
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* not parsed, (possibly pointing to the final '\0' terminator.
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*
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* Returns a newly talloc'ed string belonging to 'ctx'.
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*
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* Returns NULL if there is any error parsing the message-id. */
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static char *
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_parse_message_id (void *ctx, const char *message_id, const char **next)
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{
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const char *s, *end;
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char *result;
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if (message_id == NULL || *message_id == '\0')
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return NULL;
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s = message_id;
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skip_space_and_comments (&s);
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/* Skip any unstructured text as well. */
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while (*s && *s != '<')
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s++;
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if (*s == '<') {
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s++;
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} else {
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if (next)
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*next = s;
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return NULL;
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}
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skip_space_and_comments (&s);
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end = s;
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while (*end && *end != '>')
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end++;
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if (next) {
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if (*end)
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*next = end + 1;
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else
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*next = end;
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}
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if (end > s && *end == '>')
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end--;
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if (end <= s)
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return NULL;
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result = talloc_strndup (ctx, s, end - s + 1);
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/* Finally, collapse any whitespace that is within the message-id
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* itself. */
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{
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char *r;
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int len;
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for (r = result, len = strlen (r); *r; r++, len--)
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if (*r == ' ' || *r == '\t')
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memmove (r, r+1, len);
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}
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return result;
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}
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/* Parse a References header value, putting a (talloc'ed under 'ctx')
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* copy of each referenced message-id into 'hash'.
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*
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* We explicitly avoid including any reference identical to
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* 'message_id' in the result (to avoid mass confusion when a single
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* message references itself cyclically---and yes, mail messages are
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* not infrequent in the wild that do this---don't ask me why).
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*
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* Return the last reference parsed, if it is not equal to message_id.
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*/
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static char *
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parse_references (void *ctx,
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const char *message_id,
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GHashTable *hash,
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const char *refs)
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{
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char *ref, *last_ref = NULL;
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if (refs == NULL || *refs == '\0')
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return NULL;
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while (*refs) {
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ref = _parse_message_id (ctx, refs, &refs);
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if (ref && strcmp (ref, message_id)) {
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g_hash_table_add (hash, ref);
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last_ref = ref;
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}
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}
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/* The return value of this function is used to add a parent
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* reference to the database. We should avoid making a message
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* its own parent, thus the above check.
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*/
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return talloc_strdup(ctx, last_ref);
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}
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static const char *
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_notmuch_database_generate_thread_id (notmuch_database_t *notmuch)
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{
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/* 16 bytes (+ terminator) for hexadecimal representation of
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* a 64-bit integer. */
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static char thread_id[17];
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Xapian::WritableDatabase *db;
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db = static_cast <Xapian::WritableDatabase *> (notmuch->xapian_db);
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notmuch->last_thread_id++;
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sprintf (thread_id, "%016" PRIx64, notmuch->last_thread_id);
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db->set_metadata ("last_thread_id", thread_id);
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return thread_id;
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}
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static char *
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_get_metadata_thread_id_key (void *ctx, const char *message_id)
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{
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if (strlen (message_id) > NOTMUCH_MESSAGE_ID_MAX)
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message_id = _notmuch_message_id_compressed (ctx, message_id);
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return talloc_asprintf (ctx, NOTMUCH_METADATA_THREAD_ID_PREFIX "%s",
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message_id);
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}
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static notmuch_status_t
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_resolve_message_id_to_thread_id_old (notmuch_database_t *notmuch,
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void *ctx,
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const char *message_id,
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const char **thread_id_ret);
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/* Find the thread ID to which the message with 'message_id' belongs.
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*
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* Note: 'thread_id_ret' must not be NULL!
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* On success '*thread_id_ret' is set to a newly talloced string belonging to
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* 'ctx'.
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*
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* Note: If there is no message in the database with the given
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* 'message_id' then a new thread_id will be allocated for this
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* message ID and stored in the database metadata so that the
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* thread ID can be looked up if the message is added to the database
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* later.
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*/
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static notmuch_status_t
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_resolve_message_id_to_thread_id (notmuch_database_t *notmuch,
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void *ctx,
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const char *message_id,
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const char **thread_id_ret)
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{
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notmuch_private_status_t status;
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notmuch_message_t *message;
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if (! (notmuch->features & NOTMUCH_FEATURE_GHOSTS))
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return _resolve_message_id_to_thread_id_old (notmuch, ctx, message_id,
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thread_id_ret);
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/* Look for this message (regular or ghost) */
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message = _notmuch_message_create_for_message_id (
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notmuch, message_id, &status);
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if (status == NOTMUCH_PRIVATE_STATUS_SUCCESS) {
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/* Message exists */
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*thread_id_ret = talloc_steal (
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ctx, notmuch_message_get_thread_id (message));
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} else if (status == NOTMUCH_PRIVATE_STATUS_NO_DOCUMENT_FOUND) {
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/* Message did not exist. Give it a fresh thread ID and
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* populate this message as a ghost message. */
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*thread_id_ret = talloc_strdup (
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ctx, _notmuch_database_generate_thread_id (notmuch));
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if (! *thread_id_ret) {
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status = NOTMUCH_PRIVATE_STATUS_OUT_OF_MEMORY;
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} else {
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status = _notmuch_message_initialize_ghost (message, *thread_id_ret);
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if (status == 0)
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/* Commit the new ghost message */
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_notmuch_message_sync (message);
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}
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} else {
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/* Create failed. Fall through. */
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}
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notmuch_message_destroy (message);
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return COERCE_STATUS (status, "Error creating ghost message");
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}
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/* Pre-ghost messages _resolve_message_id_to_thread_id */
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static notmuch_status_t
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_resolve_message_id_to_thread_id_old (notmuch_database_t *notmuch,
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void *ctx,
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const char *message_id,
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const char **thread_id_ret)
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{
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notmuch_status_t status;
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notmuch_message_t *message;
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std::string thread_id_string;
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char *metadata_key;
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Xapian::WritableDatabase *db;
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status = notmuch_database_find_message (notmuch, message_id, &message);
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if (status)
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return status;
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if (message) {
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*thread_id_ret = talloc_steal (ctx,
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notmuch_message_get_thread_id (message));
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notmuch_message_destroy (message);
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return NOTMUCH_STATUS_SUCCESS;
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}
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/* Message has not been seen yet.
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*
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* We may have seen a reference to it already, in which case, we
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* can return the thread ID stored in the metadata. Otherwise, we
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* generate a new thread ID and store it there.
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*/
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db = static_cast <Xapian::WritableDatabase *> (notmuch->xapian_db);
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metadata_key = _get_metadata_thread_id_key (ctx, message_id);
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thread_id_string = notmuch->xapian_db->get_metadata (metadata_key);
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if (thread_id_string.empty()) {
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*thread_id_ret = talloc_strdup (ctx,
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_notmuch_database_generate_thread_id (notmuch));
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db->set_metadata (metadata_key, *thread_id_ret);
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} else {
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*thread_id_ret = talloc_strdup (ctx, thread_id_string.c_str());
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}
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talloc_free (metadata_key);
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return NOTMUCH_STATUS_SUCCESS;
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}
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static notmuch_status_t
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_merge_threads (notmuch_database_t *notmuch,
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const char *winner_thread_id,
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const char *loser_thread_id)
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{
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Xapian::PostingIterator loser, loser_end;
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notmuch_message_t *message = NULL;
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notmuch_private_status_t private_status;
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notmuch_status_t ret = NOTMUCH_STATUS_SUCCESS;
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_notmuch_database_find_doc_ids (notmuch, "thread", loser_thread_id, &loser, &loser_end);
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for ( ; loser != loser_end; loser++) {
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message = _notmuch_message_create (notmuch, notmuch,
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*loser, &private_status);
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if (message == NULL) {
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ret = COERCE_STATUS (private_status,
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"Cannot find document for doc_id from query");
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goto DONE;
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}
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_notmuch_message_remove_term (message, "thread", loser_thread_id);
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_notmuch_message_add_term (message, "thread", winner_thread_id);
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_notmuch_message_sync (message);
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notmuch_message_destroy (message);
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message = NULL;
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}
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DONE:
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if (message)
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notmuch_message_destroy (message);
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return ret;
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}
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static void
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_my_talloc_free_for_g_hash (void *ptr)
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{
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talloc_free (ptr);
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}
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static notmuch_status_t
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_notmuch_database_link_message_to_parents (notmuch_database_t *notmuch,
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notmuch_message_t *message,
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notmuch_message_file_t *message_file,
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const char **thread_id)
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{
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GHashTable *parents = NULL;
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const char *refs, *in_reply_to, *in_reply_to_message_id;
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const char *last_ref_message_id, *this_message_id;
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GList *l, *keys = NULL;
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notmuch_status_t ret = NOTMUCH_STATUS_SUCCESS;
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parents = g_hash_table_new_full (g_str_hash, g_str_equal,
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_my_talloc_free_for_g_hash, NULL);
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this_message_id = notmuch_message_get_message_id (message);
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refs = _notmuch_message_file_get_header (message_file, "references");
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last_ref_message_id = parse_references (message,
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this_message_id,
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parents, refs);
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in_reply_to = _notmuch_message_file_get_header (message_file, "in-reply-to");
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in_reply_to_message_id = parse_references (message,
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this_message_id,
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parents, in_reply_to);
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/* For the parent of this message, use the last message ID of the
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* References header, if available. If not, fall back to the
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* first message ID in the In-Reply-To header. */
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if (last_ref_message_id) {
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_notmuch_message_add_term (message, "replyto",
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last_ref_message_id);
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} else if (in_reply_to_message_id) {
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_notmuch_message_add_term (message, "replyto",
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in_reply_to_message_id);
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}
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keys = g_hash_table_get_keys (parents);
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for (l = keys; l; l = l->next) {
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char *parent_message_id;
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const char *parent_thread_id = NULL;
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parent_message_id = (char *) l->data;
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_notmuch_message_add_term (message, "reference",
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parent_message_id);
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ret = _resolve_message_id_to_thread_id (notmuch,
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message,
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parent_message_id,
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&parent_thread_id);
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if (ret)
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goto DONE;
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if (*thread_id == NULL) {
|
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*thread_id = talloc_strdup (message, parent_thread_id);
|
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_notmuch_message_add_term (message, "thread", *thread_id);
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} else if (strcmp (*thread_id, parent_thread_id)) {
|
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ret = _merge_threads (notmuch, *thread_id, parent_thread_id);
|
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if (ret)
|
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goto DONE;
|
||||
}
|
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}
|
||||
|
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DONE:
|
||||
if (keys)
|
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g_list_free (keys);
|
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if (parents)
|
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g_hash_table_unref (parents);
|
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|
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return ret;
|
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}
|
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|
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static notmuch_status_t
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_notmuch_database_link_message_to_children (notmuch_database_t *notmuch,
|
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notmuch_message_t *message,
|
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const char **thread_id)
|
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{
|
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const char *message_id = notmuch_message_get_message_id (message);
|
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Xapian::PostingIterator child, children_end;
|
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notmuch_message_t *child_message = NULL;
|
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const char *child_thread_id;
|
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notmuch_status_t ret = NOTMUCH_STATUS_SUCCESS;
|
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notmuch_private_status_t private_status;
|
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|
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_notmuch_database_find_doc_ids (notmuch, "reference", message_id, &child, &children_end);
|
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|
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for ( ; child != children_end; child++) {
|
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|
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child_message = _notmuch_message_create (message, notmuch,
|
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*child, &private_status);
|
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if (child_message == NULL) {
|
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ret = COERCE_STATUS (private_status,
|
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"Cannot find document for doc_id from query");
|
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goto DONE;
|
||||
}
|
||||
|
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child_thread_id = notmuch_message_get_thread_id (child_message);
|
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if (*thread_id == NULL) {
|
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*thread_id = talloc_strdup (message, child_thread_id);
|
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_notmuch_message_add_term (message, "thread", *thread_id);
|
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} else if (strcmp (*thread_id, child_thread_id)) {
|
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_notmuch_message_remove_term (child_message, "reference",
|
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message_id);
|
||||
_notmuch_message_sync (child_message);
|
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ret = _merge_threads (notmuch, *thread_id, child_thread_id);
|
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if (ret)
|
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goto DONE;
|
||||
}
|
||||
|
||||
notmuch_message_destroy (child_message);
|
||||
child_message = NULL;
|
||||
}
|
||||
|
||||
DONE:
|
||||
if (child_message)
|
||||
notmuch_message_destroy (child_message);
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
/* Fetch and clear the stored thread_id for message, or NULL if none. */
|
||||
static char *
|
||||
_consume_metadata_thread_id (void *ctx, notmuch_database_t *notmuch,
|
||||
notmuch_message_t *message)
|
||||
{
|
||||
const char *message_id;
|
||||
std::string stored_id;
|
||||
char *metadata_key;
|
||||
|
||||
message_id = notmuch_message_get_message_id (message);
|
||||
metadata_key = _get_metadata_thread_id_key (ctx, message_id);
|
||||
|
||||
/* Check if we have already seen related messages to this one.
|
||||
* If we have then use the thread_id that we stored at that time.
|
||||
*/
|
||||
stored_id = notmuch->xapian_db->get_metadata (metadata_key);
|
||||
if (stored_id.empty ()) {
|
||||
return NULL;
|
||||
} else {
|
||||
Xapian::WritableDatabase *db;
|
||||
|
||||
db = static_cast <Xapian::WritableDatabase *> (notmuch->xapian_db);
|
||||
|
||||
/* Clear the metadata for this message ID. We don't need it
|
||||
* anymore. */
|
||||
db->set_metadata (metadata_key, "");
|
||||
|
||||
return talloc_strdup (ctx, stored_id.c_str ());
|
||||
}
|
||||
}
|
||||
|
||||
/* Given a blank or ghost 'message' and its corresponding
|
||||
* 'message_file' link it to existing threads in the database.
|
||||
*
|
||||
* First, if is_ghost, this retrieves the thread ID already stored in
|
||||
* the message (which will be the case if a message was previously
|
||||
* added that referenced this one). If the message is blank
|
||||
* (!is_ghost), it doesn't have a thread ID yet (we'll generate one
|
||||
* later in this function). If the database does not support ghost
|
||||
* messages, this checks for a thread ID stored in database metadata
|
||||
* for this message ID.
|
||||
*
|
||||
* Second, we look at 'message_file' and its link-relevant headers
|
||||
* (References and In-Reply-To) for message IDs.
|
||||
*
|
||||
* Finally, we look in the database for existing message that
|
||||
* reference 'message'.
|
||||
*
|
||||
* In all cases, we assign to the current message the first thread ID
|
||||
* found. We will also merge any existing, distinct threads where this
|
||||
* message belongs to both, (which is not uncommon when messages are
|
||||
* processed out of order).
|
||||
*
|
||||
* Finally, if no thread ID has been found through referenced messages, we
|
||||
* call _notmuch_message_generate_thread_id to generate a new thread
|
||||
* ID. This should only happen for new, top-level messages, (no
|
||||
* References or In-Reply-To header in this message, and no previously
|
||||
* added message refers to this message).
|
||||
*/
|
||||
static notmuch_status_t
|
||||
_notmuch_database_link_message (notmuch_database_t *notmuch,
|
||||
notmuch_message_t *message,
|
||||
notmuch_message_file_t *message_file,
|
||||
notmuch_bool_t is_ghost)
|
||||
{
|
||||
void *local = talloc_new (NULL);
|
||||
notmuch_status_t status;
|
||||
const char *thread_id = NULL;
|
||||
|
||||
/* Check if the message already had a thread ID */
|
||||
if (notmuch->features & NOTMUCH_FEATURE_GHOSTS) {
|
||||
if (is_ghost)
|
||||
thread_id = notmuch_message_get_thread_id (message);
|
||||
} else {
|
||||
thread_id = _consume_metadata_thread_id (local, notmuch, message);
|
||||
if (thread_id)
|
||||
_notmuch_message_add_term (message, "thread", thread_id);
|
||||
}
|
||||
|
||||
status = _notmuch_database_link_message_to_parents (notmuch, message,
|
||||
message_file,
|
||||
&thread_id);
|
||||
if (status)
|
||||
goto DONE;
|
||||
|
||||
if (! (notmuch->features & NOTMUCH_FEATURE_GHOSTS)) {
|
||||
/* In general, it shouldn't be necessary to link children,
|
||||
* since the earlier indexing of those children will have
|
||||
* stored a thread ID for the missing parent. However, prior
|
||||
* to ghost messages, these stored thread IDs were NOT
|
||||
* rewritten during thread merging (and there was no
|
||||
* performant way to do so), so if indexed children were
|
||||
* pulled into a different thread ID by a merge, it was
|
||||
* necessary to pull them *back* into the stored thread ID of
|
||||
* the parent. With ghost messages, we just rewrite the
|
||||
* stored thread IDs during merging, so this workaround isn't
|
||||
* necessary. */
|
||||
status = _notmuch_database_link_message_to_children (notmuch, message,
|
||||
&thread_id);
|
||||
if (status)
|
||||
goto DONE;
|
||||
}
|
||||
|
||||
/* If not part of any existing thread, generate a new thread ID. */
|
||||
if (thread_id == NULL) {
|
||||
thread_id = _notmuch_database_generate_thread_id (notmuch);
|
||||
|
||||
_notmuch_message_add_term (message, "thread", thread_id);
|
||||
}
|
||||
|
||||
DONE:
|
||||
talloc_free (local);
|
||||
|
||||
return status;
|
||||
}
|
||||
|
||||
notmuch_status_t
|
||||
notmuch_database_add_message (notmuch_database_t *notmuch,
|
||||
const char *filename,
|
||||
notmuch_message_t **message_ret)
|
||||
{
|
||||
notmuch_message_file_t *message_file;
|
||||
notmuch_message_t *message = NULL;
|
||||
notmuch_status_t ret = NOTMUCH_STATUS_SUCCESS, ret2;
|
||||
notmuch_private_status_t private_status;
|
||||
notmuch_bool_t is_ghost = false;
|
||||
|
||||
const char *date, *header;
|
||||
const char *from, *to, *subject;
|
||||
char *message_id = NULL;
|
||||
|
||||
if (message_ret)
|
||||
*message_ret = NULL;
|
||||
|
||||
ret = _notmuch_database_ensure_writable (notmuch);
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
message_file = _notmuch_message_file_open (notmuch, filename);
|
||||
if (message_file == NULL)
|
||||
return NOTMUCH_STATUS_FILE_ERROR;
|
||||
|
||||
/* Adding a message may change many documents. Do this all
|
||||
* atomically. */
|
||||
ret = notmuch_database_begin_atomic (notmuch);
|
||||
if (ret)
|
||||
goto DONE;
|
||||
|
||||
/* Parse message up front to get better error status. */
|
||||
ret = _notmuch_message_file_parse (message_file);
|
||||
if (ret)
|
||||
goto DONE;
|
||||
|
||||
/* Before we do any real work, (especially before doing a
|
||||
* potential SHA-1 computation on the entire file's contents),
|
||||
* let's make sure that what we're looking at looks like an
|
||||
* actual email message.
|
||||
*/
|
||||
from = _notmuch_message_file_get_header (message_file, "from");
|
||||
subject = _notmuch_message_file_get_header (message_file, "subject");
|
||||
to = _notmuch_message_file_get_header (message_file, "to");
|
||||
|
||||
if ((from == NULL || *from == '\0') &&
|
||||
(subject == NULL || *subject == '\0') &&
|
||||
(to == NULL || *to == '\0')) {
|
||||
ret = NOTMUCH_STATUS_FILE_NOT_EMAIL;
|
||||
goto DONE;
|
||||
}
|
||||
|
||||
/* Now that we're sure it's mail, the first order of business
|
||||
* is to find a message ID (or else create one ourselves).
|
||||
*/
|
||||
header = _notmuch_message_file_get_header (message_file, "message-id");
|
||||
if (header && *header != '\0') {
|
||||
message_id = _parse_message_id (message_file, header, NULL);
|
||||
|
||||
/* So the header value isn't RFC-compliant, but it's
|
||||
* better than no message-id at all.
|
||||
*/
|
||||
if (message_id == NULL)
|
||||
message_id = talloc_strdup (message_file, header);
|
||||
}
|
||||
|
||||
if (message_id == NULL ) {
|
||||
/* No message-id at all, let's generate one by taking a
|
||||
* hash over the file's contents.
|
||||
*/
|
||||
char *sha1 = _notmuch_sha1_of_file (filename);
|
||||
|
||||
/* If that failed too, something is really wrong. Give up. */
|
||||
if (sha1 == NULL) {
|
||||
ret = NOTMUCH_STATUS_FILE_ERROR;
|
||||
goto DONE;
|
||||
}
|
||||
|
||||
message_id = talloc_asprintf (message_file, "notmuch-sha1-%s", sha1);
|
||||
free (sha1);
|
||||
}
|
||||
|
||||
try {
|
||||
/* Now that we have a message ID, we get a message object,
|
||||
* (which may or may not reference an existing document in the
|
||||
* database). */
|
||||
|
||||
message = _notmuch_message_create_for_message_id (notmuch,
|
||||
message_id,
|
||||
&private_status);
|
||||
|
||||
talloc_free (message_id);
|
||||
|
||||
if (message == NULL) {
|
||||
ret = COERCE_STATUS (private_status,
|
||||
"Unexpected status value from _notmuch_message_create_for_message_id");
|
||||
goto DONE;
|
||||
}
|
||||
|
||||
_notmuch_message_add_filename (message, filename);
|
||||
|
||||
/* Is this a newly created message object or a ghost
|
||||
* message? We have to be slightly careful: if this is a
|
||||
* blank message, it's not safe to call
|
||||
* notmuch_message_get_flag yet. */
|
||||
if (private_status == NOTMUCH_PRIVATE_STATUS_NO_DOCUMENT_FOUND ||
|
||||
(is_ghost = notmuch_message_get_flag (
|
||||
message, NOTMUCH_MESSAGE_FLAG_GHOST))) {
|
||||
_notmuch_message_add_term (message, "type", "mail");
|
||||
if (is_ghost)
|
||||
/* Convert ghost message to a regular message */
|
||||
_notmuch_message_remove_term (message, "type", "ghost");
|
||||
|
||||
ret = _notmuch_database_link_message (notmuch, message,
|
||||
message_file, is_ghost);
|
||||
if (ret)
|
||||
goto DONE;
|
||||
|
||||
date = _notmuch_message_file_get_header (message_file, "date");
|
||||
_notmuch_message_set_header_values (message, date, from, subject);
|
||||
|
||||
ret = _notmuch_message_index_file (message, message_file);
|
||||
if (ret)
|
||||
goto DONE;
|
||||
} else {
|
||||
ret = NOTMUCH_STATUS_DUPLICATE_MESSAGE_ID;
|
||||
}
|
||||
|
||||
_notmuch_message_sync (message);
|
||||
} catch (const Xapian::Error &error) {
|
||||
_notmuch_database_log (notmuch, "A Xapian exception occurred adding message: %s.\n",
|
||||
error.get_msg().c_str());
|
||||
notmuch->exception_reported = TRUE;
|
||||
ret = NOTMUCH_STATUS_XAPIAN_EXCEPTION;
|
||||
goto DONE;
|
||||
}
|
||||
|
||||
DONE:
|
||||
if (message) {
|
||||
if ((ret == NOTMUCH_STATUS_SUCCESS ||
|
||||
ret == NOTMUCH_STATUS_DUPLICATE_MESSAGE_ID) && message_ret)
|
||||
*message_ret = message;
|
||||
else
|
||||
notmuch_message_destroy (message);
|
||||
}
|
||||
|
||||
if (message_file)
|
||||
_notmuch_message_file_close (message_file);
|
||||
|
||||
ret2 = notmuch_database_end_atomic (notmuch);
|
||||
if ((ret == NOTMUCH_STATUS_SUCCESS ||
|
||||
ret == NOTMUCH_STATUS_DUPLICATE_MESSAGE_ID) &&
|
||||
ret2 != NOTMUCH_STATUS_SUCCESS)
|
||||
ret = ret2;
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
|
@ -246,4 +246,10 @@ _notmuch_database_get_terms_with_prefix (void *ctx, Xapian::TermIterator &i,
|
|||
Xapian::TermIterator &end,
|
||||
const char *prefix);
|
||||
|
||||
void
|
||||
_notmuch_database_find_doc_ids (notmuch_database_t *notmuch,
|
||||
const char *prefix_name,
|
||||
const char *value,
|
||||
Xapian::PostingIterator *begin,
|
||||
Xapian::PostingIterator *end);
|
||||
#endif
|
||||
|
|
|
|||
732
lib/database.cc
732
lib/database.cc
|
|
@ -463,12 +463,12 @@ find_doc_ids_for_term (notmuch_database_t *notmuch,
|
|||
*end = notmuch->xapian_db->postlist_end (term);
|
||||
}
|
||||
|
||||
static void
|
||||
find_doc_ids (notmuch_database_t *notmuch,
|
||||
const char *prefix_name,
|
||||
const char *value,
|
||||
Xapian::PostingIterator *begin,
|
||||
Xapian::PostingIterator *end)
|
||||
void
|
||||
_notmuch_database_find_doc_ids (notmuch_database_t *notmuch,
|
||||
const char *prefix_name,
|
||||
const char *value,
|
||||
Xapian::PostingIterator *begin,
|
||||
Xapian::PostingIterator *end)
|
||||
{
|
||||
char *term;
|
||||
|
||||
|
|
@ -488,7 +488,7 @@ _notmuch_database_find_unique_doc_id (notmuch_database_t *notmuch,
|
|||
{
|
||||
Xapian::PostingIterator i, end;
|
||||
|
||||
find_doc_ids (notmuch, prefix_name, value, &i, &end);
|
||||
_notmuch_database_find_doc_ids (notmuch, prefix_name, value, &i, &end);
|
||||
|
||||
if (i == end) {
|
||||
*doc_id = 0;
|
||||
|
|
@ -568,147 +568,6 @@ notmuch_database_find_message (notmuch_database_t *notmuch,
|
|||
}
|
||||
}
|
||||
|
||||
/* Advance 'str' past any whitespace or RFC 822 comments. A comment is
|
||||
* a (potentially nested) parenthesized sequence with '\' used to
|
||||
* escape any character (including parentheses).
|
||||
*
|
||||
* If the sequence to be skipped continues to the end of the string,
|
||||
* then 'str' will be left pointing at the final terminating '\0'
|
||||
* character.
|
||||
*/
|
||||
static void
|
||||
skip_space_and_comments (const char **str)
|
||||
{
|
||||
const char *s;
|
||||
|
||||
s = *str;
|
||||
while (*s && (isspace (*s) || *s == '(')) {
|
||||
while (*s && isspace (*s))
|
||||
s++;
|
||||
if (*s == '(') {
|
||||
int nesting = 1;
|
||||
s++;
|
||||
while (*s && nesting) {
|
||||
if (*s == '(') {
|
||||
nesting++;
|
||||
} else if (*s == ')') {
|
||||
nesting--;
|
||||
} else if (*s == '\\') {
|
||||
if (*(s+1))
|
||||
s++;
|
||||
}
|
||||
s++;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
*str = s;
|
||||
}
|
||||
|
||||
/* Parse an RFC 822 message-id, discarding whitespace, any RFC 822
|
||||
* comments, and the '<' and '>' delimiters.
|
||||
*
|
||||
* If not NULL, then *next will be made to point to the first character
|
||||
* not parsed, (possibly pointing to the final '\0' terminator.
|
||||
*
|
||||
* Returns a newly talloc'ed string belonging to 'ctx'.
|
||||
*
|
||||
* Returns NULL if there is any error parsing the message-id. */
|
||||
static char *
|
||||
_parse_message_id (void *ctx, const char *message_id, const char **next)
|
||||
{
|
||||
const char *s, *end;
|
||||
char *result;
|
||||
|
||||
if (message_id == NULL || *message_id == '\0')
|
||||
return NULL;
|
||||
|
||||
s = message_id;
|
||||
|
||||
skip_space_and_comments (&s);
|
||||
|
||||
/* Skip any unstructured text as well. */
|
||||
while (*s && *s != '<')
|
||||
s++;
|
||||
|
||||
if (*s == '<') {
|
||||
s++;
|
||||
} else {
|
||||
if (next)
|
||||
*next = s;
|
||||
return NULL;
|
||||
}
|
||||
|
||||
skip_space_and_comments (&s);
|
||||
|
||||
end = s;
|
||||
while (*end && *end != '>')
|
||||
end++;
|
||||
if (next) {
|
||||
if (*end)
|
||||
*next = end + 1;
|
||||
else
|
||||
*next = end;
|
||||
}
|
||||
|
||||
if (end > s && *end == '>')
|
||||
end--;
|
||||
if (end <= s)
|
||||
return NULL;
|
||||
|
||||
result = talloc_strndup (ctx, s, end - s + 1);
|
||||
|
||||
/* Finally, collapse any whitespace that is within the message-id
|
||||
* itself. */
|
||||
{
|
||||
char *r;
|
||||
int len;
|
||||
|
||||
for (r = result, len = strlen (r); *r; r++, len--)
|
||||
if (*r == ' ' || *r == '\t')
|
||||
memmove (r, r+1, len);
|
||||
}
|
||||
|
||||
return result;
|
||||
}
|
||||
|
||||
/* Parse a References header value, putting a (talloc'ed under 'ctx')
|
||||
* copy of each referenced message-id into 'hash'.
|
||||
*
|
||||
* We explicitly avoid including any reference identical to
|
||||
* 'message_id' in the result (to avoid mass confusion when a single
|
||||
* message references itself cyclically---and yes, mail messages are
|
||||
* not infrequent in the wild that do this---don't ask me why).
|
||||
*
|
||||
* Return the last reference parsed, if it is not equal to message_id.
|
||||
*/
|
||||
static char *
|
||||
parse_references (void *ctx,
|
||||
const char *message_id,
|
||||
GHashTable *hash,
|
||||
const char *refs)
|
||||
{
|
||||
char *ref, *last_ref = NULL;
|
||||
|
||||
if (refs == NULL || *refs == '\0')
|
||||
return NULL;
|
||||
|
||||
while (*refs) {
|
||||
ref = _parse_message_id (ctx, refs, &refs);
|
||||
|
||||
if (ref && strcmp (ref, message_id)) {
|
||||
g_hash_table_add (hash, ref);
|
||||
last_ref = ref;
|
||||
}
|
||||
}
|
||||
|
||||
/* The return value of this function is used to add a parent
|
||||
* reference to the database. We should avoid making a message
|
||||
* its own parent, thus the above check.
|
||||
*/
|
||||
return talloc_strdup(ctx, last_ref);
|
||||
}
|
||||
|
||||
notmuch_status_t
|
||||
notmuch_database_create (const char *path, notmuch_database_t **database)
|
||||
{
|
||||
|
|
@ -2044,583 +1903,6 @@ _notmuch_database_generate_doc_id (notmuch_database_t *notmuch)
|
|||
return notmuch->last_doc_id;
|
||||
}
|
||||
|
||||
static const char *
|
||||
_notmuch_database_generate_thread_id (notmuch_database_t *notmuch)
|
||||
{
|
||||
/* 16 bytes (+ terminator) for hexadecimal representation of
|
||||
* a 64-bit integer. */
|
||||
static char thread_id[17];
|
||||
Xapian::WritableDatabase *db;
|
||||
|
||||
db = static_cast <Xapian::WritableDatabase *> (notmuch->xapian_db);
|
||||
|
||||
notmuch->last_thread_id++;
|
||||
|
||||
sprintf (thread_id, "%016" PRIx64, notmuch->last_thread_id);
|
||||
|
||||
db->set_metadata ("last_thread_id", thread_id);
|
||||
|
||||
return thread_id;
|
||||
}
|
||||
|
||||
static char *
|
||||
_get_metadata_thread_id_key (void *ctx, const char *message_id)
|
||||
{
|
||||
if (strlen (message_id) > NOTMUCH_MESSAGE_ID_MAX)
|
||||
message_id = _notmuch_message_id_compressed (ctx, message_id);
|
||||
|
||||
return talloc_asprintf (ctx, NOTMUCH_METADATA_THREAD_ID_PREFIX "%s",
|
||||
message_id);
|
||||
}
|
||||
|
||||
static notmuch_status_t
|
||||
_resolve_message_id_to_thread_id_old (notmuch_database_t *notmuch,
|
||||
void *ctx,
|
||||
const char *message_id,
|
||||
const char **thread_id_ret);
|
||||
|
||||
/* Find the thread ID to which the message with 'message_id' belongs.
|
||||
*
|
||||
* Note: 'thread_id_ret' must not be NULL!
|
||||
* On success '*thread_id_ret' is set to a newly talloced string belonging to
|
||||
* 'ctx'.
|
||||
*
|
||||
* Note: If there is no message in the database with the given
|
||||
* 'message_id' then a new thread_id will be allocated for this
|
||||
* message ID and stored in the database metadata so that the
|
||||
* thread ID can be looked up if the message is added to the database
|
||||
* later.
|
||||
*/
|
||||
static notmuch_status_t
|
||||
_resolve_message_id_to_thread_id (notmuch_database_t *notmuch,
|
||||
void *ctx,
|
||||
const char *message_id,
|
||||
const char **thread_id_ret)
|
||||
{
|
||||
notmuch_private_status_t status;
|
||||
notmuch_message_t *message;
|
||||
|
||||
if (! (notmuch->features & NOTMUCH_FEATURE_GHOSTS))
|
||||
return _resolve_message_id_to_thread_id_old (notmuch, ctx, message_id,
|
||||
thread_id_ret);
|
||||
|
||||
/* Look for this message (regular or ghost) */
|
||||
message = _notmuch_message_create_for_message_id (
|
||||
notmuch, message_id, &status);
|
||||
if (status == NOTMUCH_PRIVATE_STATUS_SUCCESS) {
|
||||
/* Message exists */
|
||||
*thread_id_ret = talloc_steal (
|
||||
ctx, notmuch_message_get_thread_id (message));
|
||||
} else if (status == NOTMUCH_PRIVATE_STATUS_NO_DOCUMENT_FOUND) {
|
||||
/* Message did not exist. Give it a fresh thread ID and
|
||||
* populate this message as a ghost message. */
|
||||
*thread_id_ret = talloc_strdup (
|
||||
ctx, _notmuch_database_generate_thread_id (notmuch));
|
||||
if (! *thread_id_ret) {
|
||||
status = NOTMUCH_PRIVATE_STATUS_OUT_OF_MEMORY;
|
||||
} else {
|
||||
status = _notmuch_message_initialize_ghost (message, *thread_id_ret);
|
||||
if (status == 0)
|
||||
/* Commit the new ghost message */
|
||||
_notmuch_message_sync (message);
|
||||
}
|
||||
} else {
|
||||
/* Create failed. Fall through. */
|
||||
}
|
||||
|
||||
notmuch_message_destroy (message);
|
||||
|
||||
return COERCE_STATUS (status, "Error creating ghost message");
|
||||
}
|
||||
|
||||
/* Pre-ghost messages _resolve_message_id_to_thread_id */
|
||||
static notmuch_status_t
|
||||
_resolve_message_id_to_thread_id_old (notmuch_database_t *notmuch,
|
||||
void *ctx,
|
||||
const char *message_id,
|
||||
const char **thread_id_ret)
|
||||
{
|
||||
notmuch_status_t status;
|
||||
notmuch_message_t *message;
|
||||
string thread_id_string;
|
||||
char *metadata_key;
|
||||
Xapian::WritableDatabase *db;
|
||||
|
||||
status = notmuch_database_find_message (notmuch, message_id, &message);
|
||||
|
||||
if (status)
|
||||
return status;
|
||||
|
||||
if (message) {
|
||||
*thread_id_ret = talloc_steal (ctx,
|
||||
notmuch_message_get_thread_id (message));
|
||||
|
||||
notmuch_message_destroy (message);
|
||||
|
||||
return NOTMUCH_STATUS_SUCCESS;
|
||||
}
|
||||
|
||||
/* Message has not been seen yet.
|
||||
*
|
||||
* We may have seen a reference to it already, in which case, we
|
||||
* can return the thread ID stored in the metadata. Otherwise, we
|
||||
* generate a new thread ID and store it there.
|
||||
*/
|
||||
db = static_cast <Xapian::WritableDatabase *> (notmuch->xapian_db);
|
||||
metadata_key = _get_metadata_thread_id_key (ctx, message_id);
|
||||
thread_id_string = notmuch->xapian_db->get_metadata (metadata_key);
|
||||
|
||||
if (thread_id_string.empty()) {
|
||||
*thread_id_ret = talloc_strdup (ctx,
|
||||
_notmuch_database_generate_thread_id (notmuch));
|
||||
db->set_metadata (metadata_key, *thread_id_ret);
|
||||
} else {
|
||||
*thread_id_ret = talloc_strdup (ctx, thread_id_string.c_str());
|
||||
}
|
||||
|
||||
talloc_free (metadata_key);
|
||||
|
||||
return NOTMUCH_STATUS_SUCCESS;
|
||||
}
|
||||
|
||||
static notmuch_status_t
|
||||
_merge_threads (notmuch_database_t *notmuch,
|
||||
const char *winner_thread_id,
|
||||
const char *loser_thread_id)
|
||||
{
|
||||
Xapian::PostingIterator loser, loser_end;
|
||||
notmuch_message_t *message = NULL;
|
||||
notmuch_private_status_t private_status;
|
||||
notmuch_status_t ret = NOTMUCH_STATUS_SUCCESS;
|
||||
|
||||
find_doc_ids (notmuch, "thread", loser_thread_id, &loser, &loser_end);
|
||||
|
||||
for ( ; loser != loser_end; loser++) {
|
||||
message = _notmuch_message_create (notmuch, notmuch,
|
||||
*loser, &private_status);
|
||||
if (message == NULL) {
|
||||
ret = COERCE_STATUS (private_status,
|
||||
"Cannot find document for doc_id from query");
|
||||
goto DONE;
|
||||
}
|
||||
|
||||
_notmuch_message_remove_term (message, "thread", loser_thread_id);
|
||||
_notmuch_message_add_term (message, "thread", winner_thread_id);
|
||||
_notmuch_message_sync (message);
|
||||
|
||||
notmuch_message_destroy (message);
|
||||
message = NULL;
|
||||
}
|
||||
|
||||
DONE:
|
||||
if (message)
|
||||
notmuch_message_destroy (message);
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
static void
|
||||
_my_talloc_free_for_g_hash (void *ptr)
|
||||
{
|
||||
talloc_free (ptr);
|
||||
}
|
||||
|
||||
static notmuch_status_t
|
||||
_notmuch_database_link_message_to_parents (notmuch_database_t *notmuch,
|
||||
notmuch_message_t *message,
|
||||
notmuch_message_file_t *message_file,
|
||||
const char **thread_id)
|
||||
{
|
||||
GHashTable *parents = NULL;
|
||||
const char *refs, *in_reply_to, *in_reply_to_message_id;
|
||||
const char *last_ref_message_id, *this_message_id;
|
||||
GList *l, *keys = NULL;
|
||||
notmuch_status_t ret = NOTMUCH_STATUS_SUCCESS;
|
||||
|
||||
parents = g_hash_table_new_full (g_str_hash, g_str_equal,
|
||||
_my_talloc_free_for_g_hash, NULL);
|
||||
this_message_id = notmuch_message_get_message_id (message);
|
||||
|
||||
refs = _notmuch_message_file_get_header (message_file, "references");
|
||||
last_ref_message_id = parse_references (message,
|
||||
this_message_id,
|
||||
parents, refs);
|
||||
|
||||
in_reply_to = _notmuch_message_file_get_header (message_file, "in-reply-to");
|
||||
in_reply_to_message_id = parse_references (message,
|
||||
this_message_id,
|
||||
parents, in_reply_to);
|
||||
|
||||
/* For the parent of this message, use the last message ID of the
|
||||
* References header, if available. If not, fall back to the
|
||||
* first message ID in the In-Reply-To header. */
|
||||
if (last_ref_message_id) {
|
||||
_notmuch_message_add_term (message, "replyto",
|
||||
last_ref_message_id);
|
||||
} else if (in_reply_to_message_id) {
|
||||
_notmuch_message_add_term (message, "replyto",
|
||||
in_reply_to_message_id);
|
||||
}
|
||||
|
||||
keys = g_hash_table_get_keys (parents);
|
||||
for (l = keys; l; l = l->next) {
|
||||
char *parent_message_id;
|
||||
const char *parent_thread_id = NULL;
|
||||
|
||||
parent_message_id = (char *) l->data;
|
||||
|
||||
_notmuch_message_add_term (message, "reference",
|
||||
parent_message_id);
|
||||
|
||||
ret = _resolve_message_id_to_thread_id (notmuch,
|
||||
message,
|
||||
parent_message_id,
|
||||
&parent_thread_id);
|
||||
if (ret)
|
||||
goto DONE;
|
||||
|
||||
if (*thread_id == NULL) {
|
||||
*thread_id = talloc_strdup (message, parent_thread_id);
|
||||
_notmuch_message_add_term (message, "thread", *thread_id);
|
||||
} else if (strcmp (*thread_id, parent_thread_id)) {
|
||||
ret = _merge_threads (notmuch, *thread_id, parent_thread_id);
|
||||
if (ret)
|
||||
goto DONE;
|
||||
}
|
||||
}
|
||||
|
||||
DONE:
|
||||
if (keys)
|
||||
g_list_free (keys);
|
||||
if (parents)
|
||||
g_hash_table_unref (parents);
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
static notmuch_status_t
|
||||
_notmuch_database_link_message_to_children (notmuch_database_t *notmuch,
|
||||
notmuch_message_t *message,
|
||||
const char **thread_id)
|
||||
{
|
||||
const char *message_id = notmuch_message_get_message_id (message);
|
||||
Xapian::PostingIterator child, children_end;
|
||||
notmuch_message_t *child_message = NULL;
|
||||
const char *child_thread_id;
|
||||
notmuch_status_t ret = NOTMUCH_STATUS_SUCCESS;
|
||||
notmuch_private_status_t private_status;
|
||||
|
||||
find_doc_ids (notmuch, "reference", message_id, &child, &children_end);
|
||||
|
||||
for ( ; child != children_end; child++) {
|
||||
|
||||
child_message = _notmuch_message_create (message, notmuch,
|
||||
*child, &private_status);
|
||||
if (child_message == NULL) {
|
||||
ret = COERCE_STATUS (private_status,
|
||||
"Cannot find document for doc_id from query");
|
||||
goto DONE;
|
||||
}
|
||||
|
||||
child_thread_id = notmuch_message_get_thread_id (child_message);
|
||||
if (*thread_id == NULL) {
|
||||
*thread_id = talloc_strdup (message, child_thread_id);
|
||||
_notmuch_message_add_term (message, "thread", *thread_id);
|
||||
} else if (strcmp (*thread_id, child_thread_id)) {
|
||||
_notmuch_message_remove_term (child_message, "reference",
|
||||
message_id);
|
||||
_notmuch_message_sync (child_message);
|
||||
ret = _merge_threads (notmuch, *thread_id, child_thread_id);
|
||||
if (ret)
|
||||
goto DONE;
|
||||
}
|
||||
|
||||
notmuch_message_destroy (child_message);
|
||||
child_message = NULL;
|
||||
}
|
||||
|
||||
DONE:
|
||||
if (child_message)
|
||||
notmuch_message_destroy (child_message);
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
/* Fetch and clear the stored thread_id for message, or NULL if none. */
|
||||
static char *
|
||||
_consume_metadata_thread_id (void *ctx, notmuch_database_t *notmuch,
|
||||
notmuch_message_t *message)
|
||||
{
|
||||
const char *message_id;
|
||||
string stored_id;
|
||||
char *metadata_key;
|
||||
|
||||
message_id = notmuch_message_get_message_id (message);
|
||||
metadata_key = _get_metadata_thread_id_key (ctx, message_id);
|
||||
|
||||
/* Check if we have already seen related messages to this one.
|
||||
* If we have then use the thread_id that we stored at that time.
|
||||
*/
|
||||
stored_id = notmuch->xapian_db->get_metadata (metadata_key);
|
||||
if (stored_id.empty ()) {
|
||||
return NULL;
|
||||
} else {
|
||||
Xapian::WritableDatabase *db;
|
||||
|
||||
db = static_cast <Xapian::WritableDatabase *> (notmuch->xapian_db);
|
||||
|
||||
/* Clear the metadata for this message ID. We don't need it
|
||||
* anymore. */
|
||||
db->set_metadata (metadata_key, "");
|
||||
|
||||
return talloc_strdup (ctx, stored_id.c_str ());
|
||||
}
|
||||
}
|
||||
|
||||
/* Given a blank or ghost 'message' and its corresponding
|
||||
* 'message_file' link it to existing threads in the database.
|
||||
*
|
||||
* First, if is_ghost, this retrieves the thread ID already stored in
|
||||
* the message (which will be the case if a message was previously
|
||||
* added that referenced this one). If the message is blank
|
||||
* (!is_ghost), it doesn't have a thread ID yet (we'll generate one
|
||||
* later in this function). If the database does not support ghost
|
||||
* messages, this checks for a thread ID stored in database metadata
|
||||
* for this message ID.
|
||||
*
|
||||
* Second, we look at 'message_file' and its link-relevant headers
|
||||
* (References and In-Reply-To) for message IDs.
|
||||
*
|
||||
* Finally, we look in the database for existing message that
|
||||
* reference 'message'.
|
||||
*
|
||||
* In all cases, we assign to the current message the first thread ID
|
||||
* found. We will also merge any existing, distinct threads where this
|
||||
* message belongs to both, (which is not uncommon when messages are
|
||||
* processed out of order).
|
||||
*
|
||||
* Finally, if no thread ID has been found through referenced messages, we
|
||||
* call _notmuch_message_generate_thread_id to generate a new thread
|
||||
* ID. This should only happen for new, top-level messages, (no
|
||||
* References or In-Reply-To header in this message, and no previously
|
||||
* added message refers to this message).
|
||||
*/
|
||||
static notmuch_status_t
|
||||
_notmuch_database_link_message (notmuch_database_t *notmuch,
|
||||
notmuch_message_t *message,
|
||||
notmuch_message_file_t *message_file,
|
||||
notmuch_bool_t is_ghost)
|
||||
{
|
||||
void *local = talloc_new (NULL);
|
||||
notmuch_status_t status;
|
||||
const char *thread_id = NULL;
|
||||
|
||||
/* Check if the message already had a thread ID */
|
||||
if (notmuch->features & NOTMUCH_FEATURE_GHOSTS) {
|
||||
if (is_ghost)
|
||||
thread_id = notmuch_message_get_thread_id (message);
|
||||
} else {
|
||||
thread_id = _consume_metadata_thread_id (local, notmuch, message);
|
||||
if (thread_id)
|
||||
_notmuch_message_add_term (message, "thread", thread_id);
|
||||
}
|
||||
|
||||
status = _notmuch_database_link_message_to_parents (notmuch, message,
|
||||
message_file,
|
||||
&thread_id);
|
||||
if (status)
|
||||
goto DONE;
|
||||
|
||||
if (! (notmuch->features & NOTMUCH_FEATURE_GHOSTS)) {
|
||||
/* In general, it shouldn't be necessary to link children,
|
||||
* since the earlier indexing of those children will have
|
||||
* stored a thread ID for the missing parent. However, prior
|
||||
* to ghost messages, these stored thread IDs were NOT
|
||||
* rewritten during thread merging (and there was no
|
||||
* performant way to do so), so if indexed children were
|
||||
* pulled into a different thread ID by a merge, it was
|
||||
* necessary to pull them *back* into the stored thread ID of
|
||||
* the parent. With ghost messages, we just rewrite the
|
||||
* stored thread IDs during merging, so this workaround isn't
|
||||
* necessary. */
|
||||
status = _notmuch_database_link_message_to_children (notmuch, message,
|
||||
&thread_id);
|
||||
if (status)
|
||||
goto DONE;
|
||||
}
|
||||
|
||||
/* If not part of any existing thread, generate a new thread ID. */
|
||||
if (thread_id == NULL) {
|
||||
thread_id = _notmuch_database_generate_thread_id (notmuch);
|
||||
|
||||
_notmuch_message_add_term (message, "thread", thread_id);
|
||||
}
|
||||
|
||||
DONE:
|
||||
talloc_free (local);
|
||||
|
||||
return status;
|
||||
}
|
||||
|
||||
notmuch_status_t
|
||||
notmuch_database_add_message (notmuch_database_t *notmuch,
|
||||
const char *filename,
|
||||
notmuch_message_t **message_ret)
|
||||
{
|
||||
notmuch_message_file_t *message_file;
|
||||
notmuch_message_t *message = NULL;
|
||||
notmuch_status_t ret = NOTMUCH_STATUS_SUCCESS, ret2;
|
||||
notmuch_private_status_t private_status;
|
||||
notmuch_bool_t is_ghost = false;
|
||||
|
||||
const char *date, *header;
|
||||
const char *from, *to, *subject;
|
||||
char *message_id = NULL;
|
||||
|
||||
if (message_ret)
|
||||
*message_ret = NULL;
|
||||
|
||||
ret = _notmuch_database_ensure_writable (notmuch);
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
message_file = _notmuch_message_file_open (notmuch, filename);
|
||||
if (message_file == NULL)
|
||||
return NOTMUCH_STATUS_FILE_ERROR;
|
||||
|
||||
/* Adding a message may change many documents. Do this all
|
||||
* atomically. */
|
||||
ret = notmuch_database_begin_atomic (notmuch);
|
||||
if (ret)
|
||||
goto DONE;
|
||||
|
||||
/* Parse message up front to get better error status. */
|
||||
ret = _notmuch_message_file_parse (message_file);
|
||||
if (ret)
|
||||
goto DONE;
|
||||
|
||||
/* Before we do any real work, (especially before doing a
|
||||
* potential SHA-1 computation on the entire file's contents),
|
||||
* let's make sure that what we're looking at looks like an
|
||||
* actual email message.
|
||||
*/
|
||||
from = _notmuch_message_file_get_header (message_file, "from");
|
||||
subject = _notmuch_message_file_get_header (message_file, "subject");
|
||||
to = _notmuch_message_file_get_header (message_file, "to");
|
||||
|
||||
if ((from == NULL || *from == '\0') &&
|
||||
(subject == NULL || *subject == '\0') &&
|
||||
(to == NULL || *to == '\0')) {
|
||||
ret = NOTMUCH_STATUS_FILE_NOT_EMAIL;
|
||||
goto DONE;
|
||||
}
|
||||
|
||||
/* Now that we're sure it's mail, the first order of business
|
||||
* is to find a message ID (or else create one ourselves).
|
||||
*/
|
||||
header = _notmuch_message_file_get_header (message_file, "message-id");
|
||||
if (header && *header != '\0') {
|
||||
message_id = _parse_message_id (message_file, header, NULL);
|
||||
|
||||
/* So the header value isn't RFC-compliant, but it's
|
||||
* better than no message-id at all.
|
||||
*/
|
||||
if (message_id == NULL)
|
||||
message_id = talloc_strdup (message_file, header);
|
||||
}
|
||||
|
||||
if (message_id == NULL ) {
|
||||
/* No message-id at all, let's generate one by taking a
|
||||
* hash over the file's contents.
|
||||
*/
|
||||
char *sha1 = _notmuch_sha1_of_file (filename);
|
||||
|
||||
/* If that failed too, something is really wrong. Give up. */
|
||||
if (sha1 == NULL) {
|
||||
ret = NOTMUCH_STATUS_FILE_ERROR;
|
||||
goto DONE;
|
||||
}
|
||||
|
||||
message_id = talloc_asprintf (message_file, "notmuch-sha1-%s", sha1);
|
||||
free (sha1);
|
||||
}
|
||||
|
||||
try {
|
||||
/* Now that we have a message ID, we get a message object,
|
||||
* (which may or may not reference an existing document in the
|
||||
* database). */
|
||||
|
||||
message = _notmuch_message_create_for_message_id (notmuch,
|
||||
message_id,
|
||||
&private_status);
|
||||
|
||||
talloc_free (message_id);
|
||||
|
||||
if (message == NULL) {
|
||||
ret = COERCE_STATUS (private_status,
|
||||
"Unexpected status value from _notmuch_message_create_for_message_id");
|
||||
goto DONE;
|
||||
}
|
||||
|
||||
_notmuch_message_add_filename (message, filename);
|
||||
|
||||
/* Is this a newly created message object or a ghost
|
||||
* message? We have to be slightly careful: if this is a
|
||||
* blank message, it's not safe to call
|
||||
* notmuch_message_get_flag yet. */
|
||||
if (private_status == NOTMUCH_PRIVATE_STATUS_NO_DOCUMENT_FOUND ||
|
||||
(is_ghost = notmuch_message_get_flag (
|
||||
message, NOTMUCH_MESSAGE_FLAG_GHOST))) {
|
||||
_notmuch_message_add_term (message, "type", "mail");
|
||||
if (is_ghost)
|
||||
/* Convert ghost message to a regular message */
|
||||
_notmuch_message_remove_term (message, "type", "ghost");
|
||||
|
||||
ret = _notmuch_database_link_message (notmuch, message,
|
||||
message_file, is_ghost);
|
||||
if (ret)
|
||||
goto DONE;
|
||||
|
||||
date = _notmuch_message_file_get_header (message_file, "date");
|
||||
_notmuch_message_set_header_values (message, date, from, subject);
|
||||
|
||||
ret = _notmuch_message_index_file (message, message_file);
|
||||
if (ret)
|
||||
goto DONE;
|
||||
} else {
|
||||
ret = NOTMUCH_STATUS_DUPLICATE_MESSAGE_ID;
|
||||
}
|
||||
|
||||
_notmuch_message_sync (message);
|
||||
} catch (const Xapian::Error &error) {
|
||||
_notmuch_database_log (notmuch, "A Xapian exception occurred adding message: %s.\n",
|
||||
error.get_msg().c_str());
|
||||
notmuch->exception_reported = TRUE;
|
||||
ret = NOTMUCH_STATUS_XAPIAN_EXCEPTION;
|
||||
goto DONE;
|
||||
}
|
||||
|
||||
DONE:
|
||||
if (message) {
|
||||
if ((ret == NOTMUCH_STATUS_SUCCESS ||
|
||||
ret == NOTMUCH_STATUS_DUPLICATE_MESSAGE_ID) && message_ret)
|
||||
*message_ret = message;
|
||||
else
|
||||
notmuch_message_destroy (message);
|
||||
}
|
||||
|
||||
if (message_file)
|
||||
_notmuch_message_file_close (message_file);
|
||||
|
||||
ret2 = notmuch_database_end_atomic (notmuch);
|
||||
if ((ret == NOTMUCH_STATUS_SUCCESS ||
|
||||
ret == NOTMUCH_STATUS_DUPLICATE_MESSAGE_ID) &&
|
||||
ret2 != NOTMUCH_STATUS_SUCCESS)
|
||||
ret = ret2;
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
notmuch_status_t
|
||||
notmuch_database_remove_message (notmuch_database_t *notmuch,
|
||||
const char *filename)
|
||||
|
|
|
|||
Loading…
Reference in a new issue