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/* Copyright (c) 2002-2018 Pigeonhole authors, see the included COPYING file
*/
#include "lib.h"
#include "str-sanitize.h"
#include "sieve-common.h"
#include "sieve-commands.h"
#include "sieve-code.h"
#include "sieve-message.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"
/*
* Header test
*
* Syntax:
* header [COMPARATOR] [MATCH-TYPE]
* <header-names: string-list> <key-list: string-list>
*/
static bool tst_header_registered
(struct sieve_validator *valdtr, const struct sieve_extension *ext,
struct sieve_command_registration *cmd_reg);
static bool tst_header_validate
(struct sieve_validator *valdtr, struct sieve_command *tst);
static bool tst_header_generate
(const struct sieve_codegen_env *cgenv, struct sieve_command *tst);
const struct sieve_command_def tst_header = {
.identifier = "header",
.type = SCT_TEST,
.positional_args = 2,
.subtests = 0,
.block_allowed = FALSE,
.block_required = FALSE,
.registered = tst_header_registered,
.validate = tst_header_validate,
.generate = tst_header_generate
};
/*
* Header operation
*/
static bool tst_header_operation_dump
(const struct sieve_dumptime_env *denv, sieve_size_t *address);
static int tst_header_operation_execute
(const struct sieve_runtime_env *renv, sieve_size_t *address);
const struct sieve_operation_def tst_header_operation = {
.mnemonic = "HEADER",
.code = SIEVE_OPERATION_HEADER,
.dump = tst_header_operation_dump,
.execute = tst_header_operation_execute
};
/*
* Test registration
*/
static bool tst_header_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_header_validate
(struct sieve_validator *valdtr, struct sieve_command *tst)
{
struct sieve_ast_argument *arg = tst->first_positional;
struct sieve_comparator cmp_default =
SIEVE_COMPARATOR_DEFAULT(i_ascii_casemap_comparator);
struct sieve_match_type mcht_default =
SIEVE_MATCH_TYPE_DEFAULT(is_match_type);
if ( !sieve_validate_positional_argument
(valdtr, tst, arg, "header names", 1, SAAT_STRING_LIST) ) {
return FALSE;
}
if ( !sieve_validator_argument_activate(valdtr, tst, arg, FALSE) )
return FALSE;
if ( !sieve_command_verify_headers_argument(valdtr, arg) )
return FALSE;
arg = sieve_ast_argument_next(arg);
if ( !sieve_validate_positional_argument
(valdtr, tst, arg, "key list", 2, SAAT_STRING_LIST) ) {
return FALSE;
}
if ( !sieve_validator_argument_activate(valdtr, tst, arg, FALSE) )
return FALSE;
/* Validate the key argument to a specified match type */
return sieve_match_type_validate
(valdtr, tst, arg, &mcht_default, &cmp_default);
}
/*
* Code generation
*/
static bool tst_header_generate
(const struct sieve_codegen_env *cgenv, struct sieve_command *tst)
{
sieve_operation_emit(cgenv->sblock, NULL, &tst_header_operation);
/* Generate arguments */
return sieve_generate_arguments(cgenv, tst, NULL);
}
/*
* Code dump
*/
static bool tst_header_operation_dump
(const struct sieve_dumptime_env *denv, sieve_size_t *address)
{
sieve_code_dumpf(denv, "HEADER");
sieve_code_descend(denv);
/* Optional operands */
if ( sieve_message_opr_optional_dump(denv, address, NULL) != 0 )
return FALSE;
return
sieve_opr_stringlist_dump(denv, address, "header names") &&
sieve_opr_stringlist_dump(denv, address, "key list");
}
/*
* Code execution
*/
static int tst_header_operation_execute
(const struct sieve_runtime_env *renv, sieve_size_t *address)
{
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 *hdr_list, *key_list, *value_list;
ARRAY_TYPE(sieve_message_override) svmos;
int match, ret;
/*
* Read operands
*/
/* Optional operands */
i_zero(&svmos);
if ( sieve_message_opr_optional_read
(renv, address, NULL, &ret, NULL, &mcht, &cmp, &svmos) < 0 )
return ret;
/* Read header-list */
if ( (ret=sieve_opr_stringlist_read(renv, address, "header-list", &hdr_list))
<= 0 )
return ret;
/* Read key-list */
if ( (ret=sieve_opr_stringlist_read(renv, address, "key-list", &key_list))
<= 0 )
return ret;
/*
* Perform test
*/
sieve_runtime_trace(renv, SIEVE_TRLVL_TESTS, "header test");
/* Get header */
sieve_runtime_trace_descend(renv);
if ( (ret=sieve_message_get_header_fields
(renv, hdr_list, &svmos, TRUE, &value_list)) <= 0 )
return ret;
sieve_runtime_trace_ascend(renv);
/* 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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