Cross Reference: /dovecot/src/lib-storage/index/maildir/maildir-mail.c
maildir-mail.c revision 02c335c23bf5fa225a467c19f2c063fb0dc7b8c3
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b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen/* Copyright (c) 2003-2016 Dovecot authors, see the included COPYING file */
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen#include "lib.h"
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen#include "istream.h"
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen#include "nfs-workarounds.h"
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen#include "index-mail.h"
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen#include "maildir-storage.h"
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen#include "maildir-filename.h"
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen#include "maildir-uidlist.h"
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen#include "maildir-sync.h"
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen#include <stdio.h>
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen#include <fcntl.h>
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen#include <unistd.h>
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen#include <sys/stat.h>
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainenstruct maildir_open_context {
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen int fd;
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen char *path;
b5a084602a3dc2c118345f6d2990f47c1ff66264Timo Sirainen};
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainenstatic int
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainendo_open(struct maildir_mailbox *mbox, const char *path,
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen struct maildir_open_context *ctx)
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen{
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen ctx->fd = nfs_safe_open(path, O_RDONLY);
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen if (ctx->fd != -1) {
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen ctx->path = i_strdup(path);
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen return 1;
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen }
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen if (errno == ENOENT)
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen return 0;
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen if (errno == EACCES) {
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen mail_storage_set_critical(&mbox->storage->storage, "%s",
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen mail_error_eacces_msg("open", path));
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen } else {
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen mail_storage_set_critical(&mbox->storage->storage,
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen "open(%s) failed: %m", path);
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen }
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen return -1;
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen}
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen
83c21c990eb2a370f0da56240e73dac846f4acc3Timo Sirainenstatic int
83c21c990eb2a370f0da56240e73dac846f4acc3Timo Sirainendo_stat(struct maildir_mailbox *mbox, const char *path, struct stat *st)
83c21c990eb2a370f0da56240e73dac846f4acc3Timo Sirainen{
83c21c990eb2a370f0da56240e73dac846f4acc3Timo Sirainen if (stat(path, st) == 0)
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen return 1;
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen if (errno == ENOENT)
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen return 0;
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen if (errno == EACCES) {
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen mail_storage_set_critical(&mbox->storage->storage, "%s",
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen mail_error_eacces_msg("stat", path));
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen } else {
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen mail_storage_set_critical(&mbox->storage->storage,
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen "stat(%s) failed: %m", path);
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen }
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen return -1;
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen}
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainenstatic struct istream *
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainenmaildir_open_mail(struct maildir_mailbox *mbox, struct mail *mail,
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen bool *deleted_r)
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen{
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen struct istream *input;
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen const char *path;
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen struct maildir_open_context ctx;
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen *deleted_r = FALSE;
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen ctx.fd = -1;
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen ctx.path = NULL;
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen mail->transaction->stats.open_lookup_count++;
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen if (!mail->saving) {
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen if (maildir_file_do(mbox, mail->uid, do_open, &ctx) < 0)
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen return NULL;
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen } else {
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen path = maildir_save_file_get_path(mail->transaction, mail->seq);
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen if (do_open(mbox, path, &ctx) <= 0)
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen return NULL;
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen }
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen if (ctx.fd == -1) {
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen *deleted_r = TRUE;
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen return NULL;
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen }
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen input = i_stream_create_fd_autoclose(&ctx.fd, 0);
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen if (input->stream_errno == EISDIR) {
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen i_stream_destroy(&input);
65b7beb7cefce89e175920ef6c16118b1b0dbfb3Timo Sirainen if (maildir_lose_unexpected_dir(&mbox->storage->storage,
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen ctx.path) >= 0)
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen *deleted_r = TRUE;
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen } else {
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen i_stream_set_name(input, ctx.path);
65b7beb7cefce89e175920ef6c16118b1b0dbfb3Timo Sirainen index_mail_set_read_buffer_size(mail, input);
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen }
65b7beb7cefce89e175920ef6c16118b1b0dbfb3Timo Sirainen i_free(ctx.path);
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen return input;
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen}
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainenstatic int maildir_mail_stat(struct mail *mail, struct stat *st_r)
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen{
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen struct maildir_mailbox *mbox = (struct maildir_mailbox *)mail->box;
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen struct index_mail *imail = (struct index_mail *)mail;
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen const char *path;
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen int fd, ret;
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen if (mail->lookup_abort == MAIL_LOOKUP_ABORT_NOT_IN_CACHE) {
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen mail_set_aborted(mail);
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen return -1;
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen }
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen if (imail->data.access_part != 0 &&
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen imail->data.stream == NULL) {
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen /* we're going to open the mail anyway */
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen struct istream *input;
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen (void)mail_get_stream(mail, NULL, NULL, &input);
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen }
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen if (imail->data.stream != NULL &&
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen (fd = i_stream_get_fd(imail->data.stream)) != -1) {
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen mail->transaction->stats.fstat_lookup_count++;
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen if (fstat(fd, st_r) < 0) {
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen mail_storage_set_critical(mail->box->storage,
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen "fstat(%s) failed: %m",
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen i_stream_get_name(imail->data.stream));
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen return -1;
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen }
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen } else if (!mail->saving) {
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen mail->transaction->stats.stat_lookup_count++;
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen ret = maildir_file_do(mbox, mail->uid, do_stat, st_r);
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen if (ret <= 0) {
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen if (ret == 0)
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen mail_set_expunged(mail);
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen return -1;
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen }
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen } else {
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen mail->transaction->stats.stat_lookup_count++;
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen path = maildir_save_file_get_path(mail->transaction, mail->seq);
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen if (stat(path, st_r) < 0) {
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen mail_storage_set_critical(mail->box->storage,
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen "stat(%s) failed: %m", path);
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen return -1;
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen }
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen }
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen return 0;
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen}
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainenstatic int maildir_mail_get_received_date(struct mail *_mail, time_t *date_r)
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen{
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen struct index_mail *mail = (struct index_mail *)_mail;
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen struct index_mail_data *data = &mail->data;
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen struct stat st;
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen if (index_mail_get_received_date(_mail, date_r) == 0)
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen return 0;
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen if (maildir_mail_stat(_mail, &st) < 0)
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen return -1;
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen *date_r = data->received_date = st.st_mtime;
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen return 0;
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen}
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainenstatic int maildir_mail_get_save_date(struct mail *_mail, time_t *date_r)
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen{
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen struct index_mail *mail = (struct index_mail *)_mail;
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen struct index_mail_data *data = &mail->data;
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen struct stat st;
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen if (index_mail_get_save_date(_mail, date_r) == 0)
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen return 0;
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen if (maildir_mail_stat(_mail, &st) < 0)
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen return -1;
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen *date_r = data->save_date = st.st_ctime;
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen return 0;
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen}
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainenstatic int
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainenmaildir_mail_get_fname(struct maildir_mailbox *mbox, struct mail *mail,
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen const char **fname_r)
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen{
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen enum maildir_uidlist_rec_flag flags;
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen struct mail_index_view *view;
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen uint32_t seq;
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen bool exists;
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen int ret;
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen ret = maildir_sync_lookup(mbox, mail->uid, &flags, fname_r);
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen if (ret != 0)
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen return ret;
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen /* file exists in index file, but not in dovecot-uidlist anymore. */
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen mail_set_expunged(mail);
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen /* one reason this could happen is if we delayed opening
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen dovecot-uidlist and we're trying to open a mail that got recently
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen expunged. Let's test this theory first: */
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen mail_index_refresh(mbox->box.index);
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen view = mail_index_view_open(mbox->box.index);
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen exists = mail_index_lookup_seq(view, mail->uid, &seq);
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen mail_index_view_close(&view);
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen if (exists) {
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen /* the message still exists in index. this means there's some
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen kind of a desync, which doesn't get fixed if cur/ mtime is
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen the same as in index. fix this by forcing a resync. */
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen (void)maildir_storage_sync_force(mbox, mail->uid);
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen }
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen return 0;
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen}
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainenstatic int maildir_get_pop3_state(struct index_mail *mail)
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen{
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen struct mailbox *box = mail->mail.mail.box;
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen struct index_mailbox_context *ibox = INDEX_STORAGE_CONTEXT(box);
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen const struct mail_cache_field *fields;
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen unsigned int i, count, psize_idx, vsize_idx;
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen enum mail_cache_decision_type dec, vsize_dec;
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen enum mail_fetch_field allowed_pop3_fields;
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen bool not_pop3_only = FALSE;
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen if (mail->pop3_state_set)
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen return mail->pop3_state;
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen /* if this mail itself has non-pop3 fields we know we're not
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen pop3-only */
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen allowed_pop3_fields = MAIL_FETCH_FLAGS | MAIL_FETCH_STREAM_HEADER |
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen MAIL_FETCH_STREAM_BODY | MAIL_FETCH_STORAGE_ID |
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen MAIL_FETCH_VIRTUAL_SIZE;
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen if (mail->data.wanted_headers != NULL ||
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen (mail->data.wanted_fields & ~allowed_pop3_fields) != 0)
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen not_pop3_only = TRUE;
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen /* get vsize decisions */
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen psize_idx = ibox->cache_fields[MAIL_CACHE_PHYSICAL_FULL_SIZE].idx;
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen vsize_idx = ibox->cache_fields[MAIL_CACHE_VIRTUAL_FULL_SIZE].idx;
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen if (not_pop3_only) {
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen vsize_dec = mail_cache_field_get_decision(box->cache,
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen vsize_idx);
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen vsize_dec &= ~MAIL_CACHE_DECISION_FORCED;
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen } else {
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen /* also check if there are any non-[pv]size cached fields */
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen vsize_dec = MAIL_CACHE_DECISION_NO;
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen fields = mail_cache_register_get_list(box->cache,
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen pool_datastack_create(),
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen &count);
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen for (i = 0; i < count; i++) {
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen dec = fields[i].decision & ~MAIL_CACHE_DECISION_FORCED;
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen if (fields[i].idx == vsize_idx)
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen vsize_dec = dec;
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen else if (dec != MAIL_CACHE_DECISION_NO &&
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen fields[i].idx != psize_idx)
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen not_pop3_only = TRUE;
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen }
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen }
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen if (!not_pop3_only) {
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen /* either nothing is cached, or only vsize is cached. */
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen mail->pop3_state = 1;
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen } else if (vsize_dec != MAIL_CACHE_DECISION_YES &&
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen (box->flags & MAILBOX_FLAG_POP3_SESSION) == 0) {
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen /* if virtual size isn't cached permanently,
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen POP3 isn't being used */
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen mail->pop3_state = -1;
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen } else {
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen /* possibly a mixed pop3/imap */
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen mail->pop3_state = 0;
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen }
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen mail->pop3_state_set = TRUE;
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen return mail->pop3_state;
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen}
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainenstatic int maildir_quick_size_lookup(struct index_mail *mail, bool vsize,
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen uoff_t *size_r)
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen{
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen struct mail *_mail = &mail->mail.mail;
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen struct maildir_mailbox *mbox = (struct maildir_mailbox *)_mail->box;
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen enum maildir_uidlist_rec_ext_key key;
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen const char *path, *fname, *value;
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen if (!_mail->saving) {
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen if (maildir_mail_get_fname(mbox, _mail, &fname) <= 0)
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen return -1;
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen } else {
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen if (maildir_save_file_get_size(_mail->transaction, _mail->seq,
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen vsize, size_r) == 0)
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen return 1;
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen path = maildir_save_file_get_path(_mail->transaction,
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen _mail->seq);
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen fname = strrchr(path, '/');
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen fname = fname != NULL ? fname + 1 : path;
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen }
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen /* size can be included in filename */
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen if (vsize || !mbox->storage->set->maildir_broken_filename_sizes) {
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen if (maildir_filename_get_size(fname,
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen vsize ? MAILDIR_EXTRA_VIRTUAL_SIZE :
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen MAILDIR_EXTRA_FILE_SIZE, size_r))
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen return 1;
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen }
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen /* size can be included in uidlist entry */
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen if (!_mail->saving) {
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen key = vsize ? MAILDIR_UIDLIST_REC_EXT_VSIZE :
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen MAILDIR_UIDLIST_REC_EXT_PSIZE;
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen value = maildir_uidlist_lookup_ext(mbox->uidlist, _mail->uid,
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen key);
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen if (value != NULL && str_to_uoff(value, size_r) == 0)
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen return 1;
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen }
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen return 0;
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen}
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainenstatic void
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainenmaildir_handle_size_caching(struct index_mail *mail, bool quick_check,
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen bool vsize)
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen{
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen struct mailbox *box = mail->mail.mail.box;
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen struct maildir_mailbox *mbox = (struct maildir_mailbox *)box;
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen enum mail_fetch_field field;
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen uoff_t size;
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen int pop3_state;
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen field = vsize ? MAIL_FETCH_VIRTUAL_SIZE : MAIL_FETCH_PHYSICAL_SIZE;
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen if ((mail->data.dont_cache_fetch_fields & field) != 0)
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen return;
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen if (quick_check && maildir_quick_size_lookup(mail, vsize, &size) > 0) {
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen /* already in filename / uidlist. don't add it anywhere,
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen including to the uidlist if it's already in filename.
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen do some extra checks here to catch potential cache bugs. */
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen if (vsize && mail->data.virtual_size != size) {
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen mail_cache_set_corrupted(box->cache,
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen "Corrupted virtual size for uid=%u: "
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen "%"PRIuUOFF_T" != %"PRIuUOFF_T,
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen mail->mail.mail.uid,
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen mail->data.virtual_size, size);
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen mail->data.virtual_size = size;
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen } else if (!vsize && mail->data.physical_size != size) {
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen mail_cache_set_corrupted(box->cache,
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen "Corrupted physical size for uid=%u: "
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen "%"PRIuUOFF_T" != %"PRIuUOFF_T,
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen mail->mail.mail.uid,
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen mail->data.physical_size, size);
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen mail->data.physical_size = size;
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen }
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen mail->data.dont_cache_fetch_fields |= field;
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen return;
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen }
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen /* 1 = pop3-only, 0 = mixed, -1 = no pop3 */
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen pop3_state = maildir_get_pop3_state(mail);
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen if (pop3_state >= 0 && mail->mail.mail.uid != 0) {
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen /* if size is wanted permanently, store it to uidlist
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen so that in case cache file gets lost we can get it quickly */
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen mail->data.dont_cache_fetch_fields |= field;
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen size = vsize ? mail->data.virtual_size :
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen mail->data.physical_size;
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen maildir_uidlist_set_ext(mbox->uidlist, mail->mail.mail.uid,
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen vsize ? MAILDIR_UIDLIST_REC_EXT_VSIZE :
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen MAILDIR_UIDLIST_REC_EXT_PSIZE,
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen dec2str(size));
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen }
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen}
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainenstatic int maildir_mail_get_virtual_size(struct mail *_mail, uoff_t *size_r)
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen{
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen struct maildir_mailbox *mbox = (struct maildir_mailbox *)_mail->box;
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen struct index_mail *mail = (struct index_mail *)_mail;
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen struct index_mail_data *data = &mail->data;
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen struct message_size hdr_size, body_size;
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen struct istream *input;
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen uoff_t old_offset;
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen if (maildir_uidlist_is_read(mbox->uidlist) ||
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen (_mail->box->flags & MAILBOX_FLAG_POP3_SESSION) != 0) {
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen /* try to get the size from uidlist. this is especially useful
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen with pop3 to avoid unnecessarily opening the cache file. */
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen if (maildir_quick_size_lookup(mail, TRUE,
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen &data->virtual_size) < 0)
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen return -1;
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen }
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen if (data->virtual_size == (uoff_t)-1) {
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen if (index_mail_get_cached_virtual_size(mail, size_r)) {
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen i_assert(mail->data.virtual_size != (uoff_t)-1);
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen maildir_handle_size_caching(mail, TRUE, TRUE);
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen return 0;
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen }
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen if (maildir_quick_size_lookup(mail, TRUE,
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen &data->virtual_size) < 0)
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen return -1;
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen }
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen if (data->virtual_size != (uoff_t)-1) {
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen data->dont_cache_fetch_fields |= MAIL_FETCH_VIRTUAL_SIZE;
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen *size_r = data->virtual_size;
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen return 0;
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen }
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen /* fallback to reading the file */
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen old_offset = data->stream == NULL ? 0 : data->stream->v_offset;
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen if (mail_get_stream(_mail, &hdr_size, &body_size, &input) < 0)
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen return -1;
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen i_stream_seek(data->stream, old_offset);
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen maildir_handle_size_caching(mail, FALSE, TRUE);
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen *size_r = data->virtual_size;
5160580b0ec3f3288a320987abdf12a990f09df5Timo Sirainen return 0;
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen}
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainenstatic int maildir_mail_get_physical_size(struct mail *_mail, uoff_t *size_r)
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen{
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen struct index_mail *mail = (struct index_mail *)_mail;
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen struct maildir_mailbox *mbox = (struct maildir_mailbox *)_mail->box;
b039dabf4c53f72454e795930e7643b6e0e625f9Timo Sirainen struct index_mail_data *data = &mail->data;
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen struct stat st;
a27e065f1a1f91c7fbdf7c2ea1c387441af0cbb3Timo Sirainen struct message_size hdr_size, body_size;
struct istream *input;
const char *path;
int ret;
if (maildir_uidlist_is_read(mbox->uidlist) ||
(_mail->box->flags & MAILBOX_FLAG_POP3_SESSION) != 0) {
/* try to get the size from uidlist (see virtual size above) */
if (maildir_quick_size_lookup(mail, FALSE,
&data->physical_size) < 0)
return -1;
}
if (data->physical_size == (uoff_t)-1) {
if (index_mail_get_physical_size(_mail, size_r) == 0) {
i_assert(mail->data.physical_size != (uoff_t)-1);
maildir_handle_size_caching(mail, TRUE, FALSE);
return 0;
}
if (maildir_quick_size_lookup(mail, FALSE,
&data->physical_size) < 0)
return -1;
}
if (data->physical_size != (uoff_t)-1) {
data->dont_cache_fetch_fields |= MAIL_FETCH_PHYSICAL_SIZE;
*size_r = data->physical_size;
return 0;
}
if (mail->mail.v.istream_opened != NULL) {
/* we can't use stat(), because this may be a mail that some
plugin has changed (e.g. zlib). need to do it the slow
way. */
if (mail_get_stream(_mail, &hdr_size, &body_size, &input) < 0)
return -1;
st.st_size = hdr_size.physical_size + body_size.physical_size;
} else if (!_mail->saving) {
ret = maildir_file_do(mbox, _mail->uid, do_stat, &st);
if (ret <= 0) {
if (ret == 0)
mail_set_expunged(_mail);
return -1;
}
} else {
/* saved mail which hasn't been committed yet */
path = maildir_save_file_get_path(_mail->transaction,
_mail->seq);
if (stat(path, &st) < 0) {
mail_storage_set_critical(_mail->box->storage,
"stat(%s) failed: %m", path);
return -1;
}
}
data->physical_size = st.st_size;
maildir_handle_size_caching(mail, FALSE, FALSE);
*size_r = st.st_size;
return 0;
}
static int
maildir_mail_get_special(struct mail *_mail, enum mail_fetch_field field,
const char **value_r)
{
struct index_mail *mail = (struct index_mail *)_mail;
struct maildir_mailbox *mbox = (struct maildir_mailbox *)_mail->box;
const char *path, *fname = NULL, *end, *guid, *uidl, *order;
struct stat st;
switch (field) {
case MAIL_FETCH_GUID:
/* use GUID from uidlist if it exists */
i_assert(!_mail->saving);
if (mail->data.guid != NULL) {
*value_r = mail->data.guid;
return 0;
}
/* first make sure that we have a refreshed uidlist */
if (maildir_mail_get_fname(mbox, _mail, &fname) <= 0)
return -1;
guid = maildir_uidlist_lookup_ext(mbox->uidlist, _mail->uid,
MAILDIR_UIDLIST_REC_EXT_GUID);
if (guid != NULL) {
if (*guid != '\0') {
*value_r = mail->data.guid =
p_strdup(mail->mail.data_pool, guid);
return 0;
}
mail_storage_set_critical(_mail->box->storage,
"Maildir %s: Corrupted dovecot-uidlist: "
"UID %u had empty GUID, clearing it",
mailbox_get_path(_mail->box), _mail->uid);
maildir_uidlist_unset_ext(mbox->uidlist, _mail->uid,
MAILDIR_UIDLIST_REC_EXT_GUID);
}
/* default to base filename: */
if (maildir_mail_get_special(_mail, MAIL_FETCH_STORAGE_ID,
value_r) < 0)
return -1;
mail->data.guid = mail->data.filename;
return 0;
case MAIL_FETCH_STORAGE_ID:
if (mail->data.filename != NULL) {
*value_r = mail->data.filename;
return 0;
}
if (fname != NULL) {
/* we came here from MAIL_FETCH_GUID,
avoid a second lookup */
} else if (!_mail->saving) {
if (maildir_mail_get_fname(mbox, _mail, &fname) <= 0)
return -1;
} else {
path = maildir_save_file_get_path(_mail->transaction,
_mail->seq);
fname = strrchr(path, '/');
fname = fname != NULL ? fname + 1 : path;
}
end = strchr(fname, MAILDIR_INFO_SEP);
mail->data.filename = end == NULL ?
p_strdup(mail->mail.data_pool, fname) :
p_strdup_until(mail->mail.data_pool, fname, end);
*value_r = mail->data.filename;
return 0;
case MAIL_FETCH_UIDL_BACKEND:
uidl = maildir_uidlist_lookup_ext(mbox->uidlist, _mail->uid,
MAILDIR_UIDLIST_REC_EXT_POP3_UIDL);
if (uidl == NULL) {
/* use the default */
*value_r = "";
} else if (*uidl == '\0') {
/* special optimization case: use the base file name */
return maildir_mail_get_special(_mail,
MAIL_FETCH_STORAGE_ID, value_r);
} else {
*value_r = p_strdup(mail->mail.data_pool, uidl);
}
return 0;
case MAIL_FETCH_POP3_ORDER:
order = maildir_uidlist_lookup_ext(mbox->uidlist, _mail->uid,
MAILDIR_UIDLIST_REC_EXT_POP3_ORDER);
if (order == NULL) {
*value_r = "";
} else {
*value_r = p_strdup(mail->mail.data_pool, order);
}
return 0;
case MAIL_FETCH_REFCOUNT:
if (maildir_mail_stat(_mail, &st) < 0)
return -1;
*value_r = p_strdup_printf(mail->mail.data_pool, "%lu",
(unsigned long)st.st_nlink);
return 0;
default:
return index_mail_get_special(_mail, field, value_r);
}
}
static int
maildir_mail_get_stream(struct mail *_mail, bool get_body ATTR_UNUSED,
struct message_size *hdr_size,
struct message_size *body_size,
struct istream **stream_r)
{
struct index_mail *mail = (struct index_mail *)_mail;
struct maildir_mailbox *mbox = (struct maildir_mailbox *)_mail->box;
struct index_mail_data *data = &mail->data;
bool deleted;
if (data->stream == NULL) {
data->stream = maildir_open_mail(mbox, _mail, &deleted);
if (data->stream == NULL) {
if (deleted)
mail_set_expunged(_mail);
return -1;
}
if (mail->mail.v.istream_opened != NULL) {
if (mail->mail.v.istream_opened(_mail,
&data->stream) < 0) {
i_stream_unref(&data->stream);
return -1;
}
}
}
return index_mail_init_stream(mail, hdr_size, body_size, stream_r);
}
static void maildir_update_pop3_uidl(struct mail *_mail, const char *uidl)
{
struct maildir_mailbox *mbox = (struct maildir_mailbox *)_mail->box;
const char *fname;
if (maildir_mail_get_special(_mail, MAIL_FETCH_STORAGE_ID,
&fname) == 0 &&
strcmp(uidl, fname) == 0) {
/* special case optimization: empty UIDL means the same
as base filename */
uidl = "";
}
_mail->transaction->nontransactional_changes = TRUE;
maildir_uidlist_set_ext(mbox->uidlist, _mail->uid,
MAILDIR_UIDLIST_REC_EXT_POP3_UIDL, uidl);
}
static void maildir_mail_remove_sizes_from_uidlist(struct mail *mail)
{
struct maildir_mailbox *mbox = (struct maildir_mailbox *)mail->box;
if (maildir_uidlist_lookup_ext(mbox->uidlist, mail->uid,
MAILDIR_UIDLIST_REC_EXT_VSIZE) != NULL) {
maildir_uidlist_unset_ext(mbox->uidlist, mail->uid,
MAILDIR_UIDLIST_REC_EXT_VSIZE);
}
if (maildir_uidlist_lookup_ext(mbox->uidlist, mail->uid,
MAILDIR_UIDLIST_REC_EXT_PSIZE) != NULL) {
maildir_uidlist_unset_ext(mbox->uidlist, mail->uid,
MAILDIR_UIDLIST_REC_EXT_PSIZE);
}
}
struct maildir_size_fix_ctx {
uoff_t physical_size;
char wrong_key;
};
static int
do_fix_size(struct maildir_mailbox *mbox, const char *path,
struct maildir_size_fix_ctx *ctx)
{
const char *fname, *newpath, *extra, *info, *dir;
struct stat st;
fname = strrchr(path, '/');
i_assert(fname != NULL);
dir = t_strdup_until(path, fname++);
extra = strchr(fname, MAILDIR_EXTRA_SEP);
i_assert(extra != NULL);
info = strchr(fname, MAILDIR_INFO_SEP);
if (info == NULL) info = "";
if (ctx->physical_size == (uoff_t)-1) {
if (stat(path, &st) < 0) {
if (errno == ENOENT)
return 0;
mail_storage_set_critical(&mbox->storage->storage,
"stat(%s) failed: %m", path);
return -1;
}
ctx->physical_size = st.st_size;
}
newpath = t_strdup_printf("%s/%s,S=%"PRIuUOFF_T"%s", dir,
t_strdup_until(fname, extra),
ctx->physical_size, info);
if (rename(path, newpath) == 0) {
mail_storage_set_critical(mbox->box.storage,
"Maildir filename has wrong %c value, "
"renamed the file from %s to %s",
ctx->wrong_key, path, newpath);
return 1;
}
if (errno == ENOENT)
return 0;
mail_storage_set_critical(&mbox->storage->storage,
"rename(%s, %s) failed: %m", path, newpath);
return -1;
}
static void
maildir_mail_remove_sizes_from_filename(struct mail *mail,
enum mail_fetch_field field)
{
struct maildir_mailbox *mbox = (struct maildir_mailbox *)mail->box;
struct mail_private *pmail = (struct mail_private *)mail;
enum maildir_uidlist_rec_flag flags;
const char *fname;
uoff_t size;
struct maildir_size_fix_ctx ctx;
if (mbox->storage->set->maildir_broken_filename_sizes) {
/* never try to fix sizes in maildir filenames */
return;
}
if (maildir_sync_lookup(mbox, mail->uid, &flags, &fname) <= 0)
return;
if (strchr(fname, MAILDIR_EXTRA_SEP) == NULL)
return;
memset(&ctx, 0, sizeof(ctx));
ctx.physical_size = (uoff_t)-1;
if (field == MAIL_FETCH_VIRTUAL_SIZE &&
maildir_filename_get_size(fname, MAILDIR_EXTRA_VIRTUAL_SIZE,
&size)) {
ctx.wrong_key = 'W';
} else if (field == MAIL_FETCH_PHYSICAL_SIZE &&
maildir_filename_get_size(fname, MAILDIR_EXTRA_FILE_SIZE,
&size)) {
ctx.wrong_key = 'S';
} else {
/* the broken size isn't in filename */
return;
}
if (pmail->v.istream_opened != NULL) {
/* the mail could be e.g. compressed. get the physical size
the slow way by actually reading the mail. */
struct istream *input;
const struct stat *stp;
if (mail_get_stream(mail, NULL, NULL, &input) < 0)
return;
if (i_stream_stat(input, TRUE, &stp) < 0)
return;
ctx.physical_size = stp->st_size;
}
(void)maildir_file_do(mbox, mail->uid, do_fix_size, &ctx);
}
static void maildir_mail_set_cache_corrupted(struct mail *_mail,
enum mail_fetch_field field)
{
if (field == MAIL_FETCH_PHYSICAL_SIZE ||
field == MAIL_FETCH_VIRTUAL_SIZE) {
maildir_mail_remove_sizes_from_uidlist(_mail);
maildir_mail_remove_sizes_from_filename(_mail, field);
}
index_mail_set_cache_corrupted(_mail, field);
}
struct mail_vfuncs maildir_mail_vfuncs = {
index_mail_close,
index_mail_free,
index_mail_set_seq,
index_mail_set_uid,
index_mail_set_uid_cache_updates,
index_mail_prefetch,
index_mail_precache,
index_mail_add_temp_wanted_fields,
index_mail_get_flags,
index_mail_get_keywords,
index_mail_get_keyword_indexes,
index_mail_get_modseq,
index_mail_get_pvt_modseq,
index_mail_get_parts,
index_mail_get_date,
maildir_mail_get_received_date,
maildir_mail_get_save_date,
maildir_mail_get_virtual_size,
maildir_mail_get_physical_size,
index_mail_get_first_header,
index_mail_get_headers,
index_mail_get_header_stream,
maildir_mail_get_stream,
index_mail_get_binary_stream,
maildir_mail_get_special,
index_mail_get_real_mail,
index_mail_update_flags,
index_mail_update_keywords,
index_mail_update_modseq,
index_mail_update_pvt_modseq,
maildir_update_pop3_uidl,
index_mail_expunge,
maildir_mail_set_cache_corrupted,
index_mail_opened
};