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/* Copyright (c) 2002-2009 Dovecot Sieve authors, see the included COPYING file
*/
#include "lib.h"
#include "sieve-common.h"
#include "sieve-commands.h"
#include "sieve-extensions.h"
#include "sieve-validator.h"
#include "sieve-generator.h"
/*
* Require command
*
* Syntax
* Syntax: require <capabilities: string-list>
*/
static bool cmd_require_validate
(struct sieve_validator *validator, struct sieve_command_context *cmd);
const struct sieve_command cmd_require = {
"require",
SCT_COMMAND,
1, 0, FALSE, FALSE,
NULL, NULL,
cmd_require_validate,
NULL, NULL
};
/*
* Validation
*/
static bool cmd_require_validate
(struct sieve_validator *validator, struct sieve_command_context *cmd)
{
bool result = TRUE;
struct sieve_ast_argument *arg;
struct sieve_command_context *prev_context =
sieve_command_prev_context(cmd);
/* Check valid command placement */
if ( !sieve_command_is_toplevel(cmd) ||
( !sieve_command_is_first(cmd) && prev_context != NULL &&
prev_context->command != &cmd_require ) )
{
sieve_command_validate_error(validator, cmd,
"require commands can only be placed at top level "
"at the beginning of the file");
return FALSE;
}
/* Check argument and load specified extension(s) */
arg = cmd->first_positional;
if ( sieve_ast_argument_type(arg) == SAAT_STRING ) {
/* Single string */
const struct sieve_extension *ext = sieve_validator_extension_load
(validator, cmd, arg, sieve_ast_argument_str(arg));
if ( ext == NULL ) result = FALSE;
} else if ( sieve_ast_argument_type(arg) == SAAT_STRING_LIST ) {
/* String list */
struct sieve_ast_argument *stritem = sieve_ast_strlist_first(arg);
while ( stritem != NULL ) {
const struct sieve_extension *ext = sieve_validator_extension_load
(validator, cmd, stritem, sieve_ast_strlist_str(stritem));
if ( ext == NULL ) result = FALSE;
stritem = sieve_ast_strlist_next(stritem);
}
} else {
/* Something else */
sieve_argument_validate_error(validator, arg,
"the require command accepts a single string or string list argument, "
"but %s was found",
sieve_ast_argument_name(arg));
return FALSE;
}
return result;
}
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