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/* Copyright (c) 2002-2018 Pigeonhole authors, see the included COPYING file
*/
#include "lib.h"
#include "sieve-commands.h"
#include "sieve-stringlist.h"
#include "sieve-code.h"
#include "sieve-comparators.h"
#include "sieve-match-types.h"
#include "sieve-validator.h"
#include "sieve-generator.h"
#include "sieve-interpreter.h"
#include "sieve-dump.h"
#include "sieve-match.h"
#include "ext-imap4flags-common.h"
/*
* Hasflag test
*
* Syntax:
* hasflag [MATCH-TYPE] [COMPARATOR] [<variable-list: string-list>]
* <list-of-flags: string-list>
*/
static bool tst_hasflag_registered
(struct sieve_validator *valdtr, const struct sieve_extension *ext,
struct sieve_command_registration *cmd_reg);
static bool tst_hasflag_validate
(struct sieve_validator *valdtr, struct sieve_command *tst);
static bool tst_hasflag_generate
(const struct sieve_codegen_env *cgenv, struct sieve_command *cmd);
const struct sieve_command_def tst_hasflag = {
.identifier = "hasflag",
.type = SCT_TEST,
.positional_args = -1, /* We check positional arguments ourselves */
.subtests = 0,
.block_allowed = FALSE,
.block_required = FALSE,
.registered = tst_hasflag_registered,
.validate = tst_hasflag_validate,
.generate = tst_hasflag_generate
};
/*
* Hasflag operation
*/
static bool tst_hasflag_operation_dump
(const struct sieve_dumptime_env *denv, sieve_size_t *address);
static int tst_hasflag_operation_execute
(const struct sieve_runtime_env *renv, sieve_size_t *address);
const struct sieve_operation_def hasflag_operation = {
.mnemonic = "HASFLAG",
.ext_def = &imap4flags_extension,
.code = EXT_IMAP4FLAGS_OPERATION_HASFLAG,
.dump = tst_hasflag_operation_dump,
.execute = tst_hasflag_operation_execute
};
/*
* Optional arguments
*/
enum tst_hasflag_optional {
OPT_VARIABLES = SIEVE_MATCH_OPT_LAST,
};
/*
* Tag registration
*/
static bool tst_hasflag_registered
(struct sieve_validator *valdtr, const struct sieve_extension *ext ATTR_UNUSED,
struct sieve_command_registration *cmd_reg)
{
/* The order of these is not significant */
sieve_comparators_link_tag(valdtr, cmd_reg, SIEVE_MATCH_OPT_COMPARATOR);
sieve_match_types_link_tags(valdtr, cmd_reg, SIEVE_MATCH_OPT_MATCH_TYPE);
return TRUE;
}
/*
* Validation
*/
static bool tst_hasflag_validate
(struct sieve_validator *valdtr, struct sieve_command *tst)
{
struct sieve_ast_argument *vars = tst->first_positional;
struct sieve_ast_argument *keys = sieve_ast_argument_next(vars);
const struct sieve_match_type mcht_default =
SIEVE_MATCH_TYPE_DEFAULT(is_match_type);
const struct sieve_comparator cmp_default =
SIEVE_COMPARATOR_DEFAULT(i_ascii_casemap_comparator);
if ( !ext_imap4flags_command_validate(valdtr, tst) )
return FALSE;
if ( keys == NULL ) {
keys = vars;
vars = NULL;
} else {
vars->argument->id_code = OPT_VARIABLES;
}
/* Validate the key argument to a specified match type */
return sieve_match_type_validate
(valdtr, tst, keys, &mcht_default, &cmp_default);
}
/*
* Code generation
*/
static bool tst_hasflag_generate
(const struct sieve_codegen_env *cgenv, struct sieve_command *cmd)
{
sieve_operation_emit(cgenv->sblock, cmd->ext, &hasflag_operation);
/* Generate arguments */
if ( !sieve_generate_arguments(cgenv, cmd, NULL) )
return FALSE;
return TRUE;
}
/*
* Code dump
*/
static bool tst_hasflag_operation_dump
(const struct sieve_dumptime_env *denv, sieve_size_t *address)
{
int opt_code = 0;
sieve_code_dumpf(denv, "HASFLAG");
sieve_code_descend(denv);
/* Optional operands */
for (;;) {
bool opok = TRUE;
int opt;
if ( (opt=sieve_match_opr_optional_dump(denv, address, &opt_code))
< 0 )
return FALSE;
if ( opt == 0 ) break;
switch ( opt_code ) {
case OPT_VARIABLES:
opok = sieve_opr_stringlist_dump(denv, address, "variables");
break;
default:
return FALSE;
}
if ( !opok ) return FALSE;
}
return
sieve_opr_stringlist_dump(denv, address, "list of flags");
}
/*
* Interpretation
*/
static int tst_hasflag_operation_execute
(const struct sieve_runtime_env *renv, sieve_size_t *address)
{
const struct sieve_operation *op = renv->oprtn;
int opt_code = 0;
struct sieve_comparator cmp =
SIEVE_COMPARATOR_DEFAULT(i_ascii_casemap_comparator);
struct sieve_match_type mcht =
SIEVE_MATCH_TYPE_DEFAULT(is_match_type);
struct sieve_stringlist *flag_list, *variables_list, *value_list, *key_list;
int match, ret;
/*
* Read operands
*/
/* Optional operands */
variables_list = NULL;
for (;;) {
int opt;
if ( (opt=sieve_match_opr_optional_read
(renv, address, &opt_code, &ret, &cmp, &mcht)) < 0 )
return ret;
if ( opt == 0 ) break;
switch ( opt_code ) {
case OPT_VARIABLES:
ret = sieve_opr_stringlist_read
(renv, address, "variables-list", &variables_list);
break;
default:
sieve_runtime_trace_error(renv, "invalid optional operand");
ret = SIEVE_EXEC_BIN_CORRUPT;
}
if ( ret <= 0 ) return ret;
}
/* Fixed operands */
if ( (ret=sieve_opr_stringlist_read(renv, address, "flag-list", &flag_list))
<= 0 )
return ret;
/*
* Perform operation
*/
sieve_runtime_trace(renv, SIEVE_TRLVL_TESTS, "hasflag test");
value_list = sieve_ext_imap4flags_get_flags
(renv, op->ext, variables_list);
if ( sieve_match_type_is(&mcht, is_match_type) ||
sieve_match_type_is(&mcht, contains_match_type) ) {
key_list = sieve_ext_imap4flags_get_flags
(renv, op->ext, flag_list);
} else {
key_list = flag_list;
}
/* Perform match */
if ( (match=sieve_match(renv, &mcht, &cmp, value_list, key_list, &ret)) < 0 )
return ret;
/* Set test result for subsequent conditional jump */
sieve_interpreter_set_test_result(renv->interp, match > 0);
return SIEVE_EXEC_OK;
}
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