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/* Copyright (c) 2010-2018 Dovecot authors, see the included COPYING file */
#include "lib.h"
#include "imap-arg.h"
#include "mail-search-parser-private.h"
struct imap_arg_stack {
struct imap_arg_stack *prev;
const struct imap_arg *args;
};
struct imap_mail_search_parser {
struct mail_search_parser parser;
struct imap_arg_stack root, *cur;
};
static int imap_search_parse_key(struct mail_search_parser *_parser,
const char **key_r)
{
struct imap_mail_search_parser *parser =
(struct imap_mail_search_parser *)_parser;
const struct imap_arg *arg = parser->cur->args;
struct imap_arg_stack *stack;
switch (arg->type) {
case IMAP_ARG_NIL:
case IMAP_ARG_ATOM:
*key_r = imap_arg_as_astring(arg);
break;
case IMAP_ARG_STRING:
case IMAP_ARG_LITERAL:
_parser->error = t_strconcat(
"Unexpected string as search key: ",
imap_arg_as_astring(arg), NULL);
return -1;
case IMAP_ARG_LIST:
stack = p_new(_parser->pool, struct imap_arg_stack, 1);
stack->prev = parser->cur;
stack->args = imap_arg_as_list(arg);
parser->cur->args++;
parser->cur = stack;
*key_r = MAIL_SEARCH_PARSER_KEY_LIST;
return 1;
case IMAP_ARG_EOL:
parser->cur = parser->cur->prev;
return 0;
case IMAP_ARG_LITERAL_SIZE:
case IMAP_ARG_LITERAL_SIZE_NONSYNC:
i_unreached();
}
parser->cur->args++;
return 1;
}
static int imap_search_parse_string(struct mail_search_parser *_parser,
const char **value_r)
{
struct imap_mail_search_parser *parser =
(struct imap_mail_search_parser *)_parser;
const struct imap_arg *arg = parser->cur->args;
switch (arg->type) {
case IMAP_ARG_NIL:
case IMAP_ARG_ATOM:
case IMAP_ARG_STRING:
case IMAP_ARG_LITERAL:
*value_r = imap_arg_as_astring(arg);
break;
case IMAP_ARG_LIST:
_parser->error = "Unexpected (";
return -1;
case IMAP_ARG_EOL:
_parser->error = "Missing parameter for search key";
return -1;
case IMAP_ARG_LITERAL_SIZE:
case IMAP_ARG_LITERAL_SIZE_NONSYNC:
i_unreached();
}
parser->cur->args++;
return 1;
}
static bool
imap_search_parse_skip_next(struct mail_search_parser *_parser, const char *str)
{
struct imap_mail_search_parser *parser =
(struct imap_mail_search_parser *)_parser;
const char *arg;
if (!imap_arg_get_astring(parser->cur->args, &arg))
return FALSE;
if (strcasecmp(arg, str) != 0)
return FALSE;
parser->cur->args++;
return TRUE;
}
static const struct mail_search_parser_vfuncs mail_search_parser_imap_vfuncs = {
imap_search_parse_key,
imap_search_parse_string,
imap_search_parse_skip_next
};
struct mail_search_parser *
mail_search_parser_init_imap(const struct imap_arg *args)
{
struct imap_mail_search_parser *parser;
pool_t pool;
pool = pool_alloconly_create("imap search parser", 1024);
parser = p_new(pool, struct imap_mail_search_parser, 1);
parser->parser.pool = pool;
parser->parser.v = mail_search_parser_imap_vfuncs;
parser->root.args = args;
parser->cur = &parser->root;
return &parser->parser;
}
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