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/* Copyright (c) 2002-2018 Dovecot authors, see the included COPYING file */
#include "lib.h"
#include "array.h"
#include "str.h"
#include "maildir-storage.h"
#include "maildir-keywords.h"
#include "maildir-filename-flags.h"
void maildir_filename_flags_get(struct maildir_keywords_sync_ctx *ctx,
const char *fname, enum mail_flags *flags_r,
ARRAY_TYPE(keyword_indexes) *keywords_r)
{
const char *info;
array_clear(keywords_r);
*flags_r = 0;
info = strrchr(fname, MAILDIR_INFO_SEP);
if (info == NULL || info[1] != '2' || info[2] != MAILDIR_FLAGS_SEP)
return;
for (info += 3; *info != '\0' && *info != MAILDIR_FLAGS_SEP; info++) {
switch (*info) {
case 'R': /* replied */
*flags_r |= MAIL_ANSWERED;
break;
case 'S': /* seen */
*flags_r |= MAIL_SEEN;
break;
case 'T': /* trashed */
*flags_r |= MAIL_DELETED;
break;
case 'D': /* draft */
*flags_r |= MAIL_DRAFT;
break;
case 'F': /* flagged */
*flags_r |= MAIL_FLAGGED;
break;
default:
if (*info >= MAILDIR_KEYWORD_FIRST &&
*info <= MAILDIR_KEYWORD_LAST) {
int idx;
idx = maildir_keywords_char_idx(ctx, *info);
if (idx < 0) {
/* unknown keyword. */
break;
}
array_push_back(keywords_r,
(unsigned int *)&idx);
break;
}
/* unknown flag - ignore */
break;
}
}
}
static int char_cmp(const void *p1, const void *p2)
{
const unsigned char *c1 = p1, *c2 = p2;
return *c1 - *c2;
}
static void
maildir_filename_append_keywords(struct maildir_keywords_sync_ctx *ctx,
ARRAY_TYPE(keyword_indexes) *keywords,
string_t *fname)
{
const unsigned int *indexes;
unsigned int i, count;
size_t start = str_len(fname);
char chr;
indexes = array_get(keywords, &count);
for (i = 0; i < count; i++) {
chr = maildir_keywords_idx_char(ctx, indexes[i]);
if (chr != '\0')
str_append_c(fname, chr);
}
qsort(str_c_modifiable(fname) + start, str_len(fname) - start, 1,
char_cmp);
}
static const char * ATTR_NULL(1, 4)
maildir_filename_flags_full_set(struct maildir_keywords_sync_ctx *ctx,
const char *fname, enum mail_flags flags,
ARRAY_TYPE(keyword_indexes) *keywords)
{
string_t *flags_str;
enum mail_flags flags_left;
const char *info, *oldflags;
int nextflag;
/* remove the old :info from file name, and get the old flags */
info = strrchr(fname, MAILDIR_INFO_SEP);
if (info != NULL && strrchr(fname, '/') > info)
info = NULL;
oldflags = "";
if (info != NULL) {
fname = t_strdup_until(fname, info);
if (info[1] == '2' && info[2] == MAILDIR_FLAGS_SEP)
oldflags = info+3;
}
/* insert the new flags between old flags. flags must be sorted by
their ASCII code. unknown flags are kept. */
flags_str = t_str_new(256);
str_append(flags_str, fname);
str_append(flags_str, MAILDIR_FLAGS_FULL_SEP);
flags_left = flags;
for (;;) {
/* skip all known flags */
while (*oldflags == 'D' || *oldflags == 'F' ||
*oldflags == 'R' || *oldflags == 'S' ||
*oldflags == 'T' ||
(*oldflags >= MAILDIR_KEYWORD_FIRST &&
*oldflags <= MAILDIR_KEYWORD_LAST))
oldflags++;
nextflag = *oldflags == '\0' || *oldflags == MAILDIR_FLAGS_SEP ?
256 : (unsigned char) *oldflags;
if ((flags_left & MAIL_DRAFT) != 0 && nextflag > 'D') {
str_append_c(flags_str, 'D');
flags_left &= ENUM_NEGATE(MAIL_DRAFT);
}
if ((flags_left & MAIL_FLAGGED) != 0 && nextflag > 'F') {
str_append_c(flags_str, 'F');
flags_left &= ENUM_NEGATE(MAIL_FLAGGED);
}
if ((flags_left & MAIL_ANSWERED) != 0 && nextflag > 'R') {
str_append_c(flags_str, 'R');
flags_left &= ENUM_NEGATE(MAIL_ANSWERED);
}
if ((flags_left & MAIL_SEEN) != 0 && nextflag > 'S') {
str_append_c(flags_str, 'S');
flags_left &= ENUM_NEGATE(MAIL_SEEN);
}
if ((flags_left & MAIL_DELETED) != 0 && nextflag > 'T') {
str_append_c(flags_str, 'T');
flags_left &= ENUM_NEGATE(MAIL_DELETED);
}
if (keywords != NULL && array_is_created(keywords) &&
nextflag > MAILDIR_KEYWORD_FIRST) {
maildir_filename_append_keywords(ctx, keywords,
flags_str);
keywords = NULL;
}
if (*oldflags == '\0' || *oldflags == MAILDIR_FLAGS_SEP)
break;
str_append_c(flags_str, *oldflags);
oldflags++;
}
if (*oldflags == MAILDIR_FLAGS_SEP) {
/* another flagset, we don't know about these, just keep them */
while (*oldflags != '\0')
str_append_c(flags_str, *oldflags++);
}
return str_c(flags_str);
}
const char *maildir_filename_flags_set(const char *fname, enum mail_flags flags)
{
return maildir_filename_flags_full_set(NULL, fname, flags, NULL);
}
const char *maildir_filename_flags_kw_set(struct maildir_keywords_sync_ctx *ctx,
const char *fname, enum mail_flags flags,
ARRAY_TYPE(keyword_indexes) *keywords)
{
return maildir_filename_flags_full_set(ctx, fname, flags, keywords);
}
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