index/dbox-single/sdbox-mail.c

	sdbox-mail.c revision 0a7b04ec6441fdcf083392888b2e30844fc3e86d
/* Copyright (c) 2007-2011 Dovecot authors, see the included COPYING file */

#include "lib.h"
#include "ioloop.h"
#include "istream.h"
#include "str.h"
#include "index-mail.h"
#include "dbox-mail.h"
#include "sdbox-storage.h"
#include "sdbox-file.h"

#include <stdlib.h>
#include <sys/stat.h>

static void sdbox_mail_set_expunged(struct dbox_mail *mail)
{
    struct mail *_mail = &mail->imail.mail.mail;

    (void)mail_index_refresh(_mail->box->index);
    if (mail_index_is_expunged(_mail->transaction->view, _mail->seq)) {
        mail_set_expunged(_mail);
        return;
    }

    mail_storage_set_critical(_mail->box->storage,
                  "dbox %s: Unexpectedly lost uid=%u",
                  _mail->box->path, _mail->uid);
    sdbox_set_mailbox_corrupted(_mail->box);
}

static bool sdbox_mail_file_set(struct dbox_mail *mail)
{
    struct mail *_mail = &mail->imail.mail.mail;
    struct sdbox_mailbox *mbox = (struct sdbox_mailbox *)_mail->box;
    bool deleted;
    int ret;

    if (mail->open_file != NULL) {
        /* already set */
        return FALSE;
    } else if (!_mail->saving) {
        mail->open_file = sdbox_file_init(mbox, _mail->uid);
        return FALSE;
    } else {
        /* mail is being saved in this transaction */
        mail->open_file =
            sdbox_save_file_get_file(_mail->transaction,
                         _mail->seq);
        mail->open_file->refcount++;

        /* it doesn't have input stream yet */
        ret = dbox_file_open(mail->open_file, &deleted);
        i_assert(ret > 0);
        return TRUE;
    }
}

int sdbox_mail_open(struct dbox_mail *mail, uoff_t *offset_r,
            struct dbox_file **file_r)
{
    struct mail *_mail = &mail->imail.mail.mail;
    bool deleted;

    if (_mail->lookup_abort != MAIL_LOOKUP_ABORT_NEVER) {
        mail_set_aborted(_mail);
        return -1;
    }

    if (!sdbox_mail_file_set(mail)) {
        if (!dbox_file_is_open(mail->open_file))
            mail->imail.mail.stats_open_lookup_count++;
        if (dbox_file_open(mail->open_file, &deleted) <= 0)
            return -1;
        if (deleted) {
            sdbox_mail_set_expunged(mail);
            return -1;
        }
    }

    *file_r = mail->open_file;
    *offset_r = 0;
    return 0;
}

struct mail_vfuncs sdbox_mail_vfuncs = {
    dbox_mail_close,
    index_mail_free,
    index_mail_set_seq,
    index_mail_set_uid,
    index_mail_set_uid_cache_updates,

    index_mail_get_flags,
    index_mail_get_keywords,
    index_mail_get_keyword_indexes,
    index_mail_get_modseq,
    index_mail_get_parts,
    index_mail_get_date,
    dbox_mail_get_received_date,
    dbox_mail_get_save_date,
    dbox_mail_get_virtual_size,
    dbox_mail_get_physical_size,
    index_mail_get_first_header,
    index_mail_get_headers,
    index_mail_get_header_stream,
    dbox_mail_get_stream,
    dbox_mail_get_special,
    index_mail_get_real_mail,
    index_mail_update_flags,
    index_mail_update_keywords,
    index_mail_update_modseq,
    NULL,
    index_mail_expunge,
    index_mail_set_cache_corrupted,
    index_mail_opened
};