static bool catenate_args_can_stop(struct cmd_append_context *ctx,
const struct imap_arg *args)
{
/* eat away literal_sizes from URLs */
while (args->type != IMAP_ARG_EOL) {
if (imap_arg_atom_equals(args, "TEXT"))
return TRUE;
if (!imap_arg_atom_equals(args, "URL")) {
/* error - handle it later */
return TRUE;
}
args++;
if (args->type == IMAP_ARG_LITERAL_SIZE ||
args->type == IMAP_ARG_LITERAL_SIZE_NONSYNC) {
if (args->type == IMAP_ARG_LITERAL_SIZE) {
if (!cmd_append_send_literal_continue(ctx))
return TRUE;
}
imap_parser_read_last_literal(ctx->save_parser);
return FALSE;
}
args++;
}
return TRUE;
}
static bool cmd_append_args_can_stop(struct cmd_append_context *ctx,
const struct imap_arg *args,
bool *last_literal_r)
{
const struct imap_arg *cat_list;
*last_literal_r = FALSE;
if (args->type == IMAP_ARG_EOL)
return TRUE;
/* [(flags)] ["internal date"] <message literal> | CATENATE (..) */
if (args->type == IMAP_ARG_LIST)
args++;
if (args->type == IMAP_ARG_STRING)
args++;
if (args->type == IMAP_ARG_LITERAL_SIZE ||
args->type == IMAP_ARG_LITERAL_SIZE_NONSYNC)
return TRUE;
if (imap_arg_atom_equals(args, "CATENATE") &&
imap_arg_get_list(&args[1], &cat_list)) {
if (catenate_args_can_stop(ctx, cat_list))
return TRUE;
*last_literal_r = TRUE;
}
return FALSE;
}
bool cmd_search(struct client_command_context *cmd)
{
struct imap_search_context *ctx;
struct mail_search_args *sargs;
const struct imap_arg *args;
const char *charset;
int ret;
if (!client_read_args(cmd, 0, 0, &args))
return FALSE;
if (!client_verify_open_mailbox(cmd))
return TRUE;
ctx = p_new(cmd->pool, struct imap_search_context, 1);
ctx->cmd = cmd;
if ((ret = cmd_search_parse_return_if_found(ctx, &args)) <= 0) {
/* error / waiting for unambiguity */
return ret < 0;
}
if (imap_arg_atom_equals(args, "CHARSET")) {
/* CHARSET specified */
if (!imap_arg_get_astring(&args[1], &charset)) {
client_send_command_error(cmd,
"Invalid charset argument.");
imap_search_context_free(ctx);
return TRUE;
}
args += 2;
} else {
charset = "UTF-8";
}
ret = imap_search_args_build(cmd, args, charset, &sargs);
if (ret <= 0) {
imap_search_context_free(ctx);
return ret < 0;
}
return imap_search_start(ctx, sargs, NULL);
}
static int
cmd_append_handle_args(struct client_command_context *cmd,
const struct imap_arg *args, bool *nonsync_r)
{
struct client *client = cmd->client;
struct cmd_append_context *ctx = cmd->context;
const struct imap_arg *flags_list;
const struct imap_arg *cat_list = NULL;
enum mail_flags flags;
const char *const *keywords_list;
struct mail_keywords *keywords;
struct istream *input;
const char *internal_date_str;
time_t internal_date;
int ret, timezone_offset;
bool valid;
/* [<flags>] */
if (!imap_arg_get_list(args, &flags_list))
flags_list = NULL;
else
args++;
/* [<internal date>] */
if (args->type != IMAP_ARG_STRING)
internal_date_str = NULL;
else {
internal_date_str = imap_arg_as_astring(args);
args++;
}
/* <message literal> | CATENATE (..) */
valid = FALSE;
*nonsync_r = FALSE;
ctx->catenate = FALSE;
if (imap_arg_get_literal_size(args, &ctx->literal_size)) {
*nonsync_r = args->type == IMAP_ARG_LITERAL_SIZE_NONSYNC;
ctx->binary_input = args->literal8;
valid = TRUE;
} else if (!imap_arg_atom_equals(args, "CATENATE")) {
/* invalid */
} else if (!imap_arg_get_list(++args, &cat_list)) {
/* invalid */
} else {
valid = TRUE;
ctx->catenate = TRUE;
/* We'll do BINARY conversion only if the CATENATE's first
part is a literal8. If it doesn't and a literal8 is seen
later we'll abort the append with UNKNOWN-CTE. */
ctx->binary_input = imap_arg_atom_equals(&cat_list[0], "TEXT") &&
cat_list[1].literal8;
}
if (!IMAP_ARG_IS_EOL(&args[1]))
valid = FALSE;
if (!valid) {
client->input_skip_line = TRUE;
if (!ctx->failed)
client_send_command_error(cmd, "Invalid arguments.");
return -1;
}
if (flags_list == NULL || ctx->failed) {
flags = 0;
keywords = NULL;
} else {
if (!client_parse_mail_flags(cmd, flags_list,
&flags, &keywords_list))
return -1;
if (keywords_list == NULL)
keywords = NULL;
else if (mailbox_keywords_create(ctx->box, keywords_list,
&keywords) < 0) {
/* invalid keywords - delay failure */
client_send_box_error(cmd, ctx->box);
ctx->failed = TRUE;
keywords = NULL;
}
}
if (internal_date_str == NULL || ctx->failed) {
/* no time given, default to now. */
internal_date = (time_t)-1;
timezone_offset = 0;
} else if (!imap_parse_datetime(internal_date_str,
&internal_date, &timezone_offset)) {
client_send_command_error(cmd, "Invalid internal date.");
if (keywords != NULL)
mailbox_keywords_unref(&keywords);
return -1;
}
if (internal_date != (time_t)-1 &&
internal_date > ioloop_time + INTERNALDATE_MAX_FUTURE_SECS) {
/* the client specified a time in the future, set it to now. */
internal_date = (time_t)-1;
timezone_offset = 0;
}
if (cat_list != NULL) {
ctx->cat_msg_size = 0;
ctx->input = i_stream_create_chain(&ctx->catchain);
} else {
if (ctx->literal_size == 0) {
/* no message data, abort */
if (!ctx->failed) {
client_send_tagline(cmd,
"NO Can't save a zero byte message.");
ctx->failed = TRUE;
}
if (!*nonsync_r) {
if (keywords != NULL)
mailbox_keywords_unref(&keywords);
return -1;
}
/* {0+} used. although there isn't any point in using
MULTIAPPEND here and adding more messages, it is
technically valid so we'll continue parsing.. */
}
ctx->litinput = i_stream_create_limit(client->input, ctx->literal_size);
ctx->input = ctx->litinput;
i_stream_ref(ctx->input);
}
if (ctx->binary_input) {
input = i_stream_create_binary_converter(ctx->input);
i_stream_unref(&ctx->input);
ctx->input = input;
}
if (!ctx->failed) {
/* save the mail */
ctx->save_ctx = mailbox_save_alloc(ctx->t);
mailbox_save_set_flags(ctx->save_ctx, flags, keywords);
mailbox_save_set_received_date(ctx->save_ctx,
internal_date, timezone_offset);
if (mailbox_save_begin(&ctx->save_ctx, ctx->input) < 0) {
/* save initialization failed */
client_send_box_error(cmd, ctx->box);
ctx->failed = TRUE;
}
}
if (keywords != NULL)
mailbox_keywords_unref(&keywords);
ctx->count++;
if (cat_list == NULL) {
/* normal APPEND */
return 1;
} else if (cat_list->type == IMAP_ARG_EOL) {
/* zero parts */
if (!ctx->failed)
client_send_command_error(cmd, "Empty CATENATE list.");
client->input_skip_line = TRUE;
return -1;
} else if ((ret = cmd_append_catenate(cmd, cat_list, nonsync_r)) < 0) {
/* invalid parameters, abort immediately */
return -1;
} else if (ret == 0) {
/* CATENATE consisted only of URLs */
return 0;
} else {
/* TEXT part found from CATENATE */
return 1;
}
}
