src/imap/cmd-thread.c

	cmd-thread.c revision c4b376dd6e0c423006d7ac83a39253bcaf8e7c47
/* Copyright (c) 2002-2008 Dovecot authors, see the included COPYING file */

#include "common.h"
#include "buffer.h"
#include "commands.h"
#include "imap-search.h"
#include "imap-thread.h"

bool cmd_thread(struct client_command_context *cmd)
{
    struct client *client = cmd->client;
    enum mail_thread_type threading;
    struct mail_search_args *sargs;
    const struct imap_arg *args;
    int ret, args_count;
    const char *charset, *str;

    args_count = imap_parser_read_args(cmd->parser, 0, 0, &args);
    if (args_count == -2)
        return FALSE;
    client->input_lock = NULL;

    if (args_count < 3) {
        client_send_command_error(cmd, args_count < 0 ? NULL :
                      "Missing or invalid arguments.");
        return TRUE;
    }

    if (!client_verify_open_mailbox(cmd))
        return TRUE;

    if (args->type != IMAP_ARG_ATOM && args->type != IMAP_ARG_STRING) {
        client_send_command_error(cmd,
                      "Invalid thread algorithm argument.");
        return TRUE;
    }

    str = IMAP_ARG_STR(args);
    if (strcasecmp(str, "REFERENCES") == 0)
        threading = MAIL_THREAD_REFERENCES;
    else if (strcasecmp(str, "ORDEREDSUBJECT") == 0) {
        client_send_command_error(cmd,
            "ORDEREDSUBJECT threading is currently not supported.");
        return TRUE;
    } else {
        client_send_command_error(cmd, "Unknown thread algorithm.");
        return TRUE;
    }
    args++;

    /* charset */
    if (args->type != IMAP_ARG_ATOM && args->type != IMAP_ARG_STRING) {
        client_send_command_error(cmd,
                      "Invalid charset argument.");
        return TRUE;
    }
    charset = IMAP_ARG_STR(args);
    args++;

    ret = imap_search_args_build(cmd, args, charset, &sargs);
    if (ret <= 0)
        return ret < 0;

    ret = imap_thread(cmd, sargs, threading);
    mail_search_args_unref(&sargs);
    if (ret < 0) {
        client_send_storage_error(cmd,
                      mailbox_get_storage(client->mailbox));
        return TRUE;
    }

    return cmd_sync(cmd, MAILBOX_SYNC_FLAG_FAST |
            (cmd->uid ? 0 : MAILBOX_SYNC_FLAG_NO_EXPUNGES),
            0, "OK Thread completed.");
}