imap-search.c revision 6789ed17e7ca4021713507baf0dcf6979bb42e0c
/* Copyright (C) 2002 Timo Sirainen */
#include "common.h"
#include "mail-search.h"
#include "imap-search.h"
#include "imap-parser.h"
struct search_build_data {
pool_t pool;
const char *error;
};
static struct mail_search_arg *
search_arg_new(pool_t pool, enum mail_search_arg_type type)
{
struct mail_search_arg *arg;
arg = p_new(pool, struct mail_search_arg, 1);
arg->type = type;
return arg;
}
#define ARG_NEW(type) \
arg_new(data, args, next_sarg, type, TRUE, NULL)
#define ARG_NEW_FLAG(type) \
arg_new(data, args, next_sarg, type, FALSE, NULL)
#define ARG_NEW_HEADER(type, hdr_name) \
arg_new(data, args, next_sarg, type, TRUE, hdr_name)
static int arg_new(struct search_build_data *data, struct imap_arg **args,
struct mail_search_arg **next_sarg,
enum mail_search_arg_type type, int have_value,
const char *hdr_name)
{
struct mail_search_arg *sarg;
*next_sarg = sarg = search_arg_new(data->pool, type);
if (!have_value)
return TRUE;
if ((*args)->type == IMAP_ARG_EOL) {
data->error = "Missing parameter for argument";
return FALSE;
}
if ((*args)->type != IMAP_ARG_ATOM &&
(*args)->type != IMAP_ARG_STRING) {
data->error = "Invalid parameter for argument";
return FALSE;
}
sarg->value.str = str_ucase(IMAP_ARG_STR(*args));
*args += 1;
if (hdr_name != NULL)
sarg->hdr_field_name = hdr_name;
return TRUE;
}
static int search_arg_build(struct search_build_data *data,
struct imap_arg **args,
struct mail_search_arg **next_sarg)
{
struct mail_search_arg **subargs;
struct imap_arg *arg;
char *str;
if ((*args)->type == IMAP_ARG_EOL) {
data->error = "Missing argument";
return FALSE;
}
arg = *args;
if (arg->type == IMAP_ARG_NIL) {
/* NIL not allowed */
data->error = "NIL not allowed";
return FALSE;
}
if (arg->type == IMAP_ARG_LIST) {
struct imap_arg *listargs = IMAP_ARG_LIST(arg)->args;
if (listargs->type == IMAP_ARG_EOL) {
data->error = "Empty list not allowed";
return FALSE;
}
*next_sarg = search_arg_new(data->pool, SEARCH_SUB);
subargs = &(*next_sarg)->value.subargs;
while (listargs->type != IMAP_ARG_EOL) {
if (!search_arg_build(data, &listargs, subargs))
return FALSE;
subargs = &(*subargs)->next;
}
*args += 1;
return TRUE;
}
i_assert(arg->type == IMAP_ARG_ATOM ||
arg->type == IMAP_ARG_STRING);
/* string argument - get the name and jump to next */
str = IMAP_ARG_STR(arg);
*args += 1;
str_ucase(str);
switch (*str) {
case 'A':
if (strcmp(str, "ANSWERED") == 0)
return ARG_NEW_FLAG(SEARCH_ANSWERED);
else if (strcmp(str, "ALL") == 0)
return ARG_NEW_FLAG(SEARCH_ALL);
break;
case 'B':
if (strcmp(str, "BODY") == 0) {
/* <string> */
return ARG_NEW(SEARCH_BODY);
} else if (strcmp(str, "BEFORE") == 0) {
/* <date> */
return ARG_NEW(SEARCH_BEFORE);
} else if (strcmp(str, "BCC") == 0) {
/* <string> */
return ARG_NEW_HEADER(SEARCH_HEADER_ADDRESS, str);
}
break;
case 'C':
if (strcmp(str, "CC") == 0) {
/* <string> */
return ARG_NEW_HEADER(SEARCH_HEADER_ADDRESS, str);
}
break;
case 'D':
if (strcmp(str, "DELETED") == 0)
return ARG_NEW_FLAG(SEARCH_DELETED);
else if (strcmp(str, "DRAFT") == 0)
return ARG_NEW_FLAG(SEARCH_DRAFT);
break;
case 'F':
if (strcmp(str, "FLAGGED") == 0)
return ARG_NEW_FLAG(SEARCH_FLAGGED);
else if (strcmp(str, "FROM") == 0) {
/* <string> */
return ARG_NEW_HEADER(SEARCH_HEADER_ADDRESS, str);
}
break;
case 'H':
if (strcmp(str, "HEADER") == 0) {
/* <field-name> <string> */
const char *key;
if ((*args)->type == IMAP_ARG_EOL) {
data->error = "Missing parameter for HEADER";
return FALSE;
}
if ((*args)->type != IMAP_ARG_ATOM &&
(*args)->type != IMAP_ARG_STRING) {
data->error = "Invalid parameter for HEADER";
return FALSE;
}
key = str_ucase(IMAP_ARG_STR(*args));
*args += 1;
return ARG_NEW_HEADER(SEARCH_HEADER, key);
}
break;
case 'K':
if (strcmp(str, "KEYWORD") == 0) {
/* <flag> */
return ARG_NEW(SEARCH_KEYWORD);
}
break;
case 'L':
if (strcmp(str, "LARGER") == 0) {
/* <n> */
return ARG_NEW(SEARCH_LARGER);
}
break;
case 'N':
if (strcmp(str, "NOT") == 0) {
if (!search_arg_build(data, args, next_sarg))
return FALSE;
(*next_sarg)->not = !(*next_sarg)->not;
return TRUE;
} else if (strcmp(str, "NEW") == 0) {
/* NEW == (RECENT UNSEEN) */
*next_sarg = search_arg_new(data->pool, SEARCH_SUB);
subargs = &(*next_sarg)->value.subargs;
*subargs = search_arg_new(data->pool, SEARCH_RECENT);
(*subargs)->next = search_arg_new(data->pool,
SEARCH_SEEN);
(*subargs)->next->not = TRUE;
return TRUE;
}
break;
case 'O':
if (strcmp(str, "OR") == 0) {
/* <search-key1> <search-key2> */
*next_sarg = search_arg_new(data->pool, SEARCH_OR);
subargs = &(*next_sarg)->value.subargs;
for (;;) {
if (!search_arg_build(data, args, subargs))
return FALSE;
subargs = &(*subargs)->next;
/* <key> OR <key> OR ... <key> - put them all
under one SEARCH_OR list. */
if ((*args)->type == IMAP_ARG_EOL)
break;
if ((*args)->type != IMAP_ARG_ATOM ||
strcasecmp(IMAP_ARG_STR(*args), "OR") != 0)
break;
*args += 1;
}
if (!search_arg_build(data, args, subargs))
return FALSE;
return TRUE;
} if (strcmp(str, "ON") == 0) {
/* <date> */
return ARG_NEW(SEARCH_ON);
} if (strcmp(str, "OLD") == 0) {
/* OLD == NOT RECENT */
if (!ARG_NEW_FLAG(SEARCH_RECENT))
return FALSE;
(*next_sarg)->not = TRUE;
return TRUE;
}
break;
case 'R':
if (strcmp(str, "RECENT") == 0)
return ARG_NEW_FLAG(SEARCH_RECENT);
break;
case 'S':
if (strcmp(str, "SEEN") == 0)
return ARG_NEW_FLAG(SEARCH_SEEN);
else if (strcmp(str, "SUBJECT") == 0) {
/* <string> */
return ARG_NEW_HEADER(SEARCH_HEADER, str);
} else if (strcmp(str, "SENTBEFORE") == 0) {
/* <date> */
return ARG_NEW(SEARCH_SENTBEFORE);
} else if (strcmp(str, "SENTON") == 0) {
/* <date> */
return ARG_NEW(SEARCH_SENTON);
} else if (strcmp(str, "SENTSINCE") == 0) {
/* <date> */
return ARG_NEW(SEARCH_SENTSINCE);
} else if (strcmp(str, "SINCE") == 0) {
/* <date> */
return ARG_NEW(SEARCH_SINCE);
} else if (strcmp(str, "SMALLER") == 0) {
/* <n> */
return ARG_NEW(SEARCH_SMALLER);
}
break;
case 'T':
if (strcmp(str, "TEXT") == 0) {
/* <string> */
return ARG_NEW(SEARCH_TEXT);
} else if (strcmp(str, "TO") == 0) {
/* <string> */
return ARG_NEW_HEADER(SEARCH_HEADER_ADDRESS, str);
}
break;
case 'U':
if (strcmp(str, "UID") == 0) {
/* <message set> */
return ARG_NEW(SEARCH_UID);
} else if (strcmp(str, "UNANSWERED") == 0) {
if (!ARG_NEW_FLAG(SEARCH_ANSWERED))
return FALSE;
(*next_sarg)->not = TRUE;
return TRUE;
} else if (strcmp(str, "UNDELETED") == 0) {
if (!ARG_NEW_FLAG(SEARCH_DELETED))
return FALSE;
(*next_sarg)->not = TRUE;
return TRUE;
} else if (strcmp(str, "UNDRAFT") == 0) {
if (!ARG_NEW_FLAG(SEARCH_DRAFT))
return FALSE;
(*next_sarg)->not = TRUE;
return TRUE;
} else if (strcmp(str, "UNFLAGGED") == 0) {
if (!ARG_NEW_FLAG(SEARCH_FLAGGED))
return FALSE;
(*next_sarg)->not = TRUE;
return TRUE;
} else if (strcmp(str, "UNKEYWORD") == 0) {
if (!ARG_NEW_FLAG(SEARCH_KEYWORD))
return FALSE;
(*next_sarg)->not = TRUE;
return TRUE;
} else if (strcmp(str, "UNSEEN") == 0) {
if (!ARG_NEW_FLAG(SEARCH_SEEN))
return FALSE;
(*next_sarg)->not = TRUE;
return TRUE;
}
break;
default:
if (*str == '*' || (*str >= '0' && *str <= '9')) {
/* <message-set> */
if (!ARG_NEW_FLAG(SEARCH_SET))
return FALSE;
(*next_sarg)->value.str = str;
return TRUE;
}
break;
}
data->error = t_strconcat("Unknown argument ", str, NULL);
return FALSE;
}
struct mail_search_arg *
imap_search_args_build(pool_t pool, struct imap_arg *args, const char **error)
{
struct search_build_data data;
struct mail_search_arg *first_sarg, **sargs;
data.pool = pool;
data.error = NULL;
/* get the first arg */
first_sarg = NULL; sargs = &first_sarg;
while (args->type != IMAP_ARG_EOL) {
if (!search_arg_build(&data, &args, sargs)) {
*error = data.error;
return NULL;
}
sargs = &(*sargs)->next;
}
*error = NULL;
return first_sarg;
}