maildir-util.c revision 16c89b1260c9d07c01c83a9219424d3727069b2e
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen/* Copyright (C) 2004 Timo Sirainen */
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen#include "lib.h"
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen#include "hostpid.h"
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen#include "ioloop.h"
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen#include "str.h"
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen#include "maildir-storage.h"
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen#include "maildir-uidlist.h"
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen#include <unistd.h>
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen#include <fcntl.h>
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen#include <sys/stat.h>
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainenstatic int maildir_file_do_try(struct index_mailbox *ibox, uint32_t uid,
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen maildir_file_do_func *func, void *context)
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen{
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen const char *fname, *path;
641f0c0900ee6e7cf9667f4b40ed95cec7d0cdcaTimo Sirainen enum maildir_uidlist_rec_flag flags;
641f0c0900ee6e7cf9667f4b40ed95cec7d0cdcaTimo Sirainen int ret;
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen
641f0c0900ee6e7cf9667f4b40ed95cec7d0cdcaTimo Sirainen fname = maildir_uidlist_lookup(ibox->uidlist, uid, &flags);
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen if (fname == NULL)
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen return -2; /* expunged */
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen
2f2823ad8928654ed405467c6c1f4fd4c6f5cf7cTimo Sirainen t_push();
641f0c0900ee6e7cf9667f4b40ed95cec7d0cdcaTimo Sirainen if ((flags & MAILDIR_UIDLIST_REC_FLAG_NEW_DIR) != 0) {
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen /* probably in new/ dir */
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen path = t_strconcat(ibox->path, "/new/", fname, NULL);
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen ret = func(ibox, path, context);
2f2823ad8928654ed405467c6c1f4fd4c6f5cf7cTimo Sirainen if (ret != 0) {
2f2823ad8928654ed405467c6c1f4fd4c6f5cf7cTimo Sirainen t_pop();
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen return ret;
2f2823ad8928654ed405467c6c1f4fd4c6f5cf7cTimo Sirainen }
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen }
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen path = t_strconcat(ibox->path, "/cur/", fname, NULL);
2f2823ad8928654ed405467c6c1f4fd4c6f5cf7cTimo Sirainen ret = func(ibox, path, context);
2f2823ad8928654ed405467c6c1f4fd4c6f5cf7cTimo Sirainen t_pop();
2f2823ad8928654ed405467c6c1f4fd4c6f5cf7cTimo Sirainen return ret;
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen}
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainenint maildir_file_do(struct index_mailbox *ibox, uint32_t uid,
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen maildir_file_do_func *func, void *context)
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen{
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen int i, ret;
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen ret = maildir_file_do_try(ibox, uid, func, context);
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen for (i = 0; i < 10 && ret == 0; i++) {
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen /* file is either renamed or deleted. sync the maildir and
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen see which one. if file appears to be renamed constantly,
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen don't try to open it more than 10 times. */
a38ef15060e45e5060bb24c403a580b9a57a818cTimo Sirainen if (maildir_storage_sync_force(ibox) < 0)
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen return -1;
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen ret = maildir_file_do_try(ibox, uid, func, context);
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen }
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen
039e42997fe5e0d1c5ad9306dc0ae69bf0e1ca10Timo Sirainen if (i == 10) {
039e42997fe5e0d1c5ad9306dc0ae69bf0e1ca10Timo Sirainen mail_storage_set_critical(ibox->box.storage,
039e42997fe5e0d1c5ad9306dc0ae69bf0e1ca10Timo Sirainen "maildir_file_do(%s) racing", ibox->path);
039e42997fe5e0d1c5ad9306dc0ae69bf0e1ca10Timo Sirainen }
039e42997fe5e0d1c5ad9306dc0ae69bf0e1ca10Timo Sirainen
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen return ret == -2 ? 0 : ret;
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen}
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen
16c89b1260c9d07c01c83a9219424d3727069b2eTimo Sirainenint maildir_filename_get_flags(const char *fname, pool_t pool,
16c89b1260c9d07c01c83a9219424d3727069b2eTimo Sirainen enum mail_flags *flags_r,
16c89b1260c9d07c01c83a9219424d3727069b2eTimo Sirainen const char *const **keywords_r)
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen{
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen const char *info;
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen unsigned int num;
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen *flags_r = 0;
16c89b1260c9d07c01c83a9219424d3727069b2eTimo Sirainen *keywords_r = NULL;
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen info = strchr(fname, ':');
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen if (info == NULL || info[1] != '2' || info[2] != ',')
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen return 0;
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen for (info += 3; *info != '\0' && *info != ','; info++) {
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen switch (*info) {
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen case 'R': /* replied */
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen *flags_r |= MAIL_ANSWERED;
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen break;
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen case 'S': /* seen */
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen *flags_r |= MAIL_SEEN;
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen break;
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen case 'T': /* trashed */
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen *flags_r |= MAIL_DELETED;
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen break;
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen case 'D': /* draft */
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen *flags_r |= MAIL_DRAFT;
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen break;
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen case 'F': /* flagged */
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen *flags_r |= MAIL_FLAGGED;
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen break;
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen default:
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen if (*info >= 'a' && *info <= 'z') {
16c89b1260c9d07c01c83a9219424d3727069b2eTimo Sirainen /* FIXME: keyword */
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen num = (*info - 'a');
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen break;
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen }
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen /* unknown flag - ignore */
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen break;
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen }
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen }
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen return 1;
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen}
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainenconst char *maildir_filename_set_flags(const char *fname, enum mail_flags flags,
16c89b1260c9d07c01c83a9219424d3727069b2eTimo Sirainen const char *const *keywords)
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen{
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen string_t *flags_str;
16c89b1260c9d07c01c83a9219424d3727069b2eTimo Sirainen enum mail_flags flags_left;
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen const char *info, *oldflags;
16c89b1260c9d07c01c83a9219424d3727069b2eTimo Sirainen int nextflag;
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen /* remove the old :info from file name, and get the old flags */
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen info = strrchr(fname, ':');
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen if (info != NULL && strrchr(fname, '/') > info)
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen info = NULL;
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen oldflags = "";
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen if (info != NULL) {
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen fname = t_strdup_until(fname, info);
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen if (info[1] == '2' && info[2] == ',')
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen oldflags = info+3;
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen }
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen /* insert the new flags between old flags. flags must be sorted by
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen their ASCII code. unknown flags are kept. */
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen flags_str = t_str_new(256);
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen str_append(flags_str, fname);
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen str_append(flags_str, ":2,");
16c89b1260c9d07c01c83a9219424d3727069b2eTimo Sirainen flags_left = flags;
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen for (;;) {
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen /* skip all known flags */
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen while (*oldflags == 'D' || *oldflags == 'F' ||
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen *oldflags == 'R' || *oldflags == 'S' ||
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen *oldflags == 'T' ||
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen (*oldflags >= 'a' && *oldflags <= 'z'))
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen oldflags++;
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen nextflag = *oldflags == '\0' || *oldflags == ',' ? 256 :
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen (unsigned char) *oldflags;
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen
16c89b1260c9d07c01c83a9219424d3727069b2eTimo Sirainen if ((flags_left & MAIL_DRAFT) && nextflag > 'D') {
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen str_append_c(flags_str, 'D');
16c89b1260c9d07c01c83a9219424d3727069b2eTimo Sirainen flags_left &= ~MAIL_DRAFT;
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen }
16c89b1260c9d07c01c83a9219424d3727069b2eTimo Sirainen if ((flags_left & MAIL_FLAGGED) && nextflag > 'F') {
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen str_append_c(flags_str, 'F');
16c89b1260c9d07c01c83a9219424d3727069b2eTimo Sirainen flags_left &= ~MAIL_FLAGGED;
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen }
16c89b1260c9d07c01c83a9219424d3727069b2eTimo Sirainen if ((flags_left & MAIL_ANSWERED) && nextflag > 'R') {
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen str_append_c(flags_str, 'R');
16c89b1260c9d07c01c83a9219424d3727069b2eTimo Sirainen flags_left &= ~MAIL_ANSWERED;
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen }
16c89b1260c9d07c01c83a9219424d3727069b2eTimo Sirainen if ((flags_left & MAIL_SEEN) && nextflag > 'S') {
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen str_append_c(flags_str, 'S');
16c89b1260c9d07c01c83a9219424d3727069b2eTimo Sirainen flags_left &= ~MAIL_SEEN;
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen }
16c89b1260c9d07c01c83a9219424d3727069b2eTimo Sirainen if ((flags_left & MAIL_DELETED) && nextflag > 'T') {
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen str_append_c(flags_str, 'T');
16c89b1260c9d07c01c83a9219424d3727069b2eTimo Sirainen flags_left &= ~MAIL_DELETED;
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen }
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen
d8b77aef97e89f1ccc5cbdaef77be9052279e35fTimo Sirainen if (keywords != NULL && nextflag > 'a') {
16c89b1260c9d07c01c83a9219424d3727069b2eTimo Sirainen // FIXME
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen }
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen if (*oldflags == '\0' || *oldflags == ',')
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen break;
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen str_append_c(flags_str, *oldflags);
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen oldflags++;
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen }
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen if (*oldflags == ',') {
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen /* another flagset, we don't know about these, just keep them */
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen while (*oldflags != '\0')
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen str_append_c(flags_str, *oldflags++);
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen }
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen return str_c(flags_str);
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen}
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainenconst char *maildir_generate_tmp_filename(const struct timeval *tv)
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen{
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen static unsigned int create_count = 0;
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen static time_t first_stamp = 0;
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen if (first_stamp == 0 || first_stamp == ioloop_time) {
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen /* it's possible that within last second another process had
4c176a543191e4572910401c218a63306ed68784Timo Sirainen the same PID as us. Use usecs to make sure we don't create
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen duplicate base name. */
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen first_stamp = ioloop_time;
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen return t_strdup_printf("%s.P%sQ%uM%s.%s",
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen dec2str(tv->tv_sec), my_pid,
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen create_count++,
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen dec2str(tv->tv_usec), my_hostname);
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen } else {
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen /* Don't bother with usecs. Saves a bit space :) */
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen return t_strdup_printf("%s.P%sQ%u.%s",
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen dec2str(tv->tv_sec), my_pid,
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen create_count++, my_hostname);
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen }
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen}
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainenint maildir_create_tmp(struct index_mailbox *ibox, const char *dir,
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen mode_t mode, const char **fname_r)
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen{
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen const char *path, *tmp_fname;
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen struct stat st;
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen struct timeval *tv, tv_now;
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen pool_t pool;
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen int fd;
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen tv = &ioloop_timeval;
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen pool = pool_alloconly_create("maildir_tmp", 4096);
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen for (;;) {
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen p_clear(pool);
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen tmp_fname = maildir_generate_tmp_filename(tv);
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen path = p_strconcat(pool, dir, "/", tmp_fname, NULL);
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen if (stat(path, &st) < 0 && errno == ENOENT) {
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen /* doesn't exist */
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen mode_t old_mask = umask(0);
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen fd = open(path, O_WRONLY | O_CREAT | O_EXCL, mode);
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen umask(old_mask);
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen if (fd != -1 || errno != EEXIST)
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen break;
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen }
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen /* wait and try again - very unlikely */
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen sleep(2);
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen tv = &tv_now;
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen if (gettimeofday(&tv_now, NULL) < 0)
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen i_fatal("gettimeofday(): %m");
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen }
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen *fname_r = t_strdup(path);
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen if (fd == -1) {
102c6b4e47a0d17699004e48740f651153fb8b76Timo Sirainen if (ENOSPACE(errno)) {
102c6b4e47a0d17699004e48740f651153fb8b76Timo Sirainen mail_storage_set_error(ibox->box.storage,
102c6b4e47a0d17699004e48740f651153fb8b76Timo Sirainen "Not enough disk space");
102c6b4e47a0d17699004e48740f651153fb8b76Timo Sirainen } else {
102c6b4e47a0d17699004e48740f651153fb8b76Timo Sirainen mail_storage_set_critical(ibox->box.storage,
102c6b4e47a0d17699004e48740f651153fb8b76Timo Sirainen "open(%s) failed: %m", path);
102c6b4e47a0d17699004e48740f651153fb8b76Timo Sirainen }
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen }
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen pool_unref(pool);
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen return fd;
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen}
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen/* a char* hash function from ASU -- from glib */
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainenunsigned int maildir_hash(const void *p)
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen{
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen const unsigned char *s = p;
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen unsigned int g, h = 0;
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen while (*s != ':' && *s != '\0') {
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen h = (h << 4) + *s;
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen if ((g = h & 0xf0000000UL)) {
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen h = h ^ (g >> 24);
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen h = h ^ g;
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen }
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen s++;
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen }
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen return h;
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen}
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainenint maildir_cmp(const void *p1, const void *p2)
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen{
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen const char *s1 = p1, *s2 = p2;
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen while (*s1 == *s2 && *s1 != ':' && *s1 != '\0') {
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen s1++; s2++;
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen }
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen if ((*s1 == '\0' || *s1 == ':') &&
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen (*s2 == '\0' || *s2 == ':'))
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen return 0;
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen return *s1 - *s2;
0cb2e8eb55e70f8ebe1e8349bdf49e4cbe5d8834Timo Sirainen}