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/* Copyright (c) 2002-2018 Pigeonhole authors, see the included COPYING file
*/
#include "lib.h"
#include "str-sanitize.h"
#include "mail-storage.h"
#include "mail-namespace.h"
#include "sieve-common.h"
#include "sieve-actions.h"
#include "sieve-extensions.h"
#include "sieve-commands.h"
#include "sieve-stringlist.h"
#include "sieve-code.h"
#include "sieve-validator.h"
#include "sieve-generator.h"
#include "sieve-interpreter.h"
#include "sieve-dump.h"
#include "ext-mailbox-common.h"
/*
* Mailboxexists command
*
* Syntax:
* mailboxexists <mailbox-names: string-list>
*/
static bool
tst_mailboxexists_validate(struct sieve_validator *valdtr,
struct sieve_command *tst);
static bool
tst_mailboxexists_generate(const struct sieve_codegen_env *cgenv,
struct sieve_command *ctx);
const struct sieve_command_def mailboxexists_test = {
.identifier = "mailboxexists",
.type = SCT_TEST,
.positional_args = 1,
.subtests = 0,
.block_allowed = FALSE,
.block_required = FALSE,
.validate = tst_mailboxexists_validate,
.generate = tst_mailboxexists_generate,
};
/*
* Mailboxexists operation
*/
static bool
tst_mailboxexists_operation_dump(const struct sieve_dumptime_env *denv,
sieve_size_t *address);
static int
tst_mailboxexists_operation_execute(const struct sieve_runtime_env *renv,
sieve_size_t *address);
const struct sieve_operation_def mailboxexists_operation = {
.mnemonic = "MAILBOXEXISTS",
.ext_def = &mailbox_extension,
.dump = tst_mailboxexists_operation_dump,
.execute = tst_mailboxexists_operation_execute,
};
/*
* Test validation
*/
struct _validate_context {
struct sieve_validator *valdtr;
struct sieve_command *tst;
};
static int
tst_mailboxexists_mailbox_validate(void *context,
struct sieve_ast_argument *arg)
{
struct _validate_context *valctx =
(struct _validate_context *)context;
if (sieve_argument_is_string_literal(arg)) {
const char *mailbox = sieve_ast_argument_strc(arg), *error;
if (!sieve_mailbox_check_name(mailbox, &error)) {
sieve_argument_validate_warning(
valctx->valdtr, arg, "%s test: "
"invalid mailbox name `%s' specified: %s",
sieve_command_identifier(valctx->tst),
str_sanitize(mailbox, 256), error);
}
}
return 1;
}
static bool
tst_mailboxexists_validate(struct sieve_validator *valdtr,
struct sieve_command *tst)
{
struct sieve_ast_argument *arg = tst->first_positional;
struct sieve_ast_argument *aarg;
struct _validate_context valctx;
if (!sieve_validate_positional_argument(
valdtr, tst, arg, "mailbox-names", 1, SAAT_STRING_LIST))
return FALSE;
if (!sieve_validator_argument_activate(valdtr, tst, arg, FALSE))
return FALSE;
aarg = arg;
i_zero(&valctx);
valctx.valdtr = valdtr;
valctx.tst = tst;
return (sieve_ast_stringlist_map(
&aarg, (void*)&valctx,
tst_mailboxexists_mailbox_validate) >= 0);
}
/*
* Test generation
*/
static bool
tst_mailboxexists_generate(const struct sieve_codegen_env *cgenv,
struct sieve_command *tst)
{
sieve_operation_emit(cgenv->sblock, tst->ext, &mailboxexists_operation);
/* Generate arguments */
return sieve_generate_arguments(cgenv, tst, NULL);
}
/*
* Code dump
*/
static bool
tst_mailboxexists_operation_dump(const struct sieve_dumptime_env *denv,
sieve_size_t *address)
{
sieve_code_dumpf(denv, "MAILBOXEXISTS");
sieve_code_descend(denv);
return sieve_opr_stringlist_dump(denv, address, "mailbox-names");
}
/*
* Code execution
*/
static int
tst_mailboxexists_test_mailbox(const struct sieve_runtime_env *renv,
const char *mailbox, bool trace,
bool *all_exist_r)
{
const struct sieve_execute_env *eenv = renv->exec_env;
struct mailbox *box;
const char *error;
/* Check validity of mailbox name */
if (!sieve_mailbox_check_name(mailbox, &error)) {
sieve_runtime_warning(
renv, NULL, "mailboxexists test: "
"invalid mailbox name `%s' specified: %s",
str_sanitize(mailbox, 256), error);
*all_exist_r = FALSE;
return SIEVE_EXEC_OK;
}
/* Open the box */
box = mailbox_alloc_for_user(eenv->scriptenv->user,
mailbox,
MAILBOX_FLAG_POST_SESSION);
if (mailbox_open(box) < 0) {
if (trace) {
sieve_runtime_trace(
renv, 0,
"mailbox `%s' cannot be opened",
str_sanitize(mailbox, 80));
}
mailbox_free(&box);
*all_exist_r = FALSE;
return SIEVE_EXEC_OK;
}
/* Also fail when it is readonly */
if (mailbox_is_readonly(box)) {
if (trace) {
sieve_runtime_trace(
renv, 0,
"mailbox `%s' is read-only",
str_sanitize(mailbox, 80));
}
mailbox_free(&box);
*all_exist_r = FALSE;
return SIEVE_EXEC_OK;
}
/* FIXME: check acl for 'p' or 'i' ACL permissions as
required by RFC */
if (trace) {
sieve_runtime_trace(
renv, 0, "mailbox `%s' exists",
str_sanitize(mailbox, 80));
}
/* Close mailbox */
mailbox_free(&box);
return SIEVE_EXEC_OK;
}
static int
tst_mailboxexists_operation_execute(const struct sieve_runtime_env *renv,
sieve_size_t *address)
{
const struct sieve_execute_env *eenv = renv->exec_env;
struct sieve_stringlist *mailbox_names;
string_t *mailbox_item;
bool trace = FALSE;
bool all_exist = TRUE;
int ret;
/*
* Read operands
*/
/* Read notify uris */
ret = sieve_opr_stringlist_read(renv, address, "mailbox-names",
&mailbox_names);
if (ret <= 0)
return ret;
/*
* Perform operation
*/
if (sieve_runtime_trace_active(renv, SIEVE_TRLVL_TESTS)) {
sieve_runtime_trace(renv, 0, "mailboxexists test");
sieve_runtime_trace_descend(renv);
trace = sieve_runtime_trace_active(renv, SIEVE_TRLVL_MATCHING);
}
if (eenv->scriptenv->user == NULL) {
sieve_runtime_trace(renv, 0, "no mail user; yield true");
sieve_interpreter_set_test_result(renv->interp, TRUE);
return SIEVE_EXEC_OK;
}
mailbox_item = NULL;
while (all_exist &&
(ret = sieve_stringlist_next_item(mailbox_names,
&mailbox_item)) > 0) {
const char *mailbox = str_c(mailbox_item);
ret = tst_mailboxexists_test_mailbox(renv, mailbox,
trace, &all_exist);
if (ret <= 0)
return ret;
}
if (ret < 0) {
sieve_runtime_trace_error(
renv, "invalid mailbox name item");
return SIEVE_EXEC_BIN_CORRUPT;
}
if (trace) {
if (all_exist) {
sieve_runtime_trace(renv, 0,
"all mailboxes are available");
} else {
sieve_runtime_trace(renv, 0,
"some mailboxes are unavailable");
}
}
sieve_interpreter_set_test_result(renv->interp, all_exist);
return SIEVE_EXEC_OK;
}
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