예제 #1
0
파일: mk_stream.c 프로젝트: leowzukw/monkey
int mk_channel_write(struct mk_channel *channel)
{
    size_t bytes = -1;
    struct mk_iov *iov;
    mk_ptr_t *ptr;
    struct mk_stream *stream;

    if (mk_list_is_empty(&channel->streams) == 0) {
        MK_TRACE("[CH %i] CHANNEL_EMPTY", channel->fd);
        return MK_CHANNEL_EMPTY;
    }

    /* Get the input source */
    stream = mk_list_entry_first(&channel->streams, struct mk_stream, _head);

    /*
     * Based on the Stream type we consume on that way, not all inputs
     * requires to read from buffer, e.g: Static File, Pipes.
     */
    if (channel->type == MK_CHANNEL_SOCKET) {
        if (stream->type == MK_STREAM_FILE) {
            bytes = channel_write_stream_file(channel, stream);
        }
        else if (stream->type == MK_STREAM_IOV) {
            MK_TRACE("[CH %i] STREAM_IOV, wrote %lu bytes",
                     channel->fd, stream->bytes_total);

            iov   = stream->buffer;
            bytes = mk_socket_sendv(channel->fd, iov);

            if (bytes > 0) {
                /* Perform the adjustment on mk_iov */
                mk_iov_consume(iov, bytes);
            }
        }
        else if (stream->type == MK_STREAM_PTR) {
            MK_TRACE("[CH %i] STREAM_PTR, bytes=%lu",
                     channel->fd, stream->bytes_total);

            ptr = stream->buffer;
            printf("data='%s'\n", ptr->data);
            bytes = mk_socket_send(channel->fd, ptr->data, ptr->len);
            if (bytes > 0) {
                /* FIXME OFFSET */
            }
        }

        if (bytes > 0) {
            mk_stream_bytes_consumed(stream, bytes);

            /* notification callback, optional */
            if (stream->cb_bytes_consumed) {
                stream->cb_bytes_consumed(stream, bytes);
            }

            if (stream->bytes_total == 0) {
                MK_TRACE("Stream done, unlinking");

                if (stream->cb_finished) {
                    stream->cb_finished(stream);
                }

                if (stream->preserve == MK_FALSE) {
                    mk_stream_unlink(stream);
                }
            }

            if (mk_list_is_empty(&channel->streams) == 0) {
                MK_TRACE("[CH %i] CHANNEL_DONE", channel->fd);
                return MK_CHANNEL_DONE;
            }

            MK_TRACE("[CH %i] CHANNEL_FLUSH", channel->fd);
            return MK_CHANNEL_FLUSH;
        }
        else if (bytes <= 0) {
            if (stream->cb_exception) {
                stream->cb_exception(stream, errno);
            }
            return MK_CHANNEL_ERROR;
        }
    }

    return MK_CHANNEL_UNKNOWN;
}
예제 #2
0
/* Send response headers */
int mk_header_send(int fd, struct client_session *cs,
                   struct session_request *sr)
{
    int i=0;
    unsigned long len = 0;
    char *buffer = 0;
    mk_pointer response;
    struct response_headers *sh;
    struct mk_iov *iov;

    sh = &sr->headers;

    iov = mk_header_iov_get();

    /* HTTP Status Code */
    if (sh->status == MK_CUSTOM_STATUS) {
        response.data = sh->custom_status.data;
        response.len = sh->custom_status.len;
    }
    else {
        for (i=0; i < status_response_len; i++) {
            if (status_response[i].status == sh->status) {
                response.data = status_response[i].response;
                response.len  = status_response[i].length;
                break;
            }
        }
    }

    /* Invalid status set */
    mk_bug(i == status_response_len);

    mk_header_iov_add_entry(iov, response, mk_iov_none, MK_IOV_NOT_FREE_BUF);

    /* Server details */
    mk_iov_add_entry(iov, sr->host_conf->header_host_signature.data,
                     sr->host_conf->header_host_signature.len,
                     mk_iov_crlf, MK_IOV_NOT_FREE_BUF);

    /* Date */
    mk_iov_add_entry(iov,
                     mk_header_short_date.data,
                     mk_header_short_date.len,
                     header_current_time,
                     MK_IOV_NOT_FREE_BUF);

    /* Last-Modified */
    if (sh->last_modified > 0) {
        mk_pointer *lm;
        lm = mk_cache_get(mk_cache_header_lm);
        lm->len = mk_utils_utime2gmt(&lm->data, sh->last_modified);

        mk_iov_add_entry(iov, mk_header_last_modified.data,
                         mk_header_last_modified.len,
                         *lm, MK_IOV_NOT_FREE_BUF);
    }

    /* Connection */
    if (sh->connection == 0) {
        if (mk_http_keepalive_check(cs) == 0) {
            if (sr->connection.len > 0) {
                /* Get cached mk_pointers */
                mk_pointer *ka_format = mk_cache_get(mk_cache_header_ka);
                mk_pointer *ka_header = mk_cache_get(mk_cache_header_ka_max);

                /* Compose header and add entries to iov */
                mk_string_itop(config->max_keep_alive_request - cs->counter_connections, ka_header);
                mk_iov_add_entry(iov, ka_format->data, ka_format->len,
                                 mk_iov_none, MK_IOV_NOT_FREE_BUF);
                mk_iov_add_entry(iov, ka_header->data, ka_header->len,
                                 mk_header_conn_ka, MK_IOV_NOT_FREE_BUF);
            }
        }
        else {
            mk_iov_add_entry(iov,
                             mk_header_conn_close.data,
                             mk_header_conn_close.len,
                             mk_iov_none, MK_IOV_NOT_FREE_BUF);
        }

    }

    /* Location */
    if (sh->location != NULL) {
        mk_iov_add_entry(iov,
                         mk_header_short_location.data,
                         mk_header_short_location.len,
                         mk_iov_none, MK_IOV_NOT_FREE_BUF);

        mk_iov_add_entry(iov,
                         sh->location,
                         strlen(sh->location), mk_iov_crlf, MK_IOV_FREE_BUF);
    }

    /* allowed methods */
    if (sh->allow_methods.len > 0) {
        mk_iov_add_entry(iov,
                         mk_header_allow.data,
                         mk_header_allow.len,
                         sh->allow_methods, MK_IOV_NOT_FREE_BUF) ;
    }

    /* Content type */
    if (sh->content_type.len > 0) {
        mk_iov_add_entry(iov,
                         mk_header_short_ct.data,
                         mk_header_short_ct.len,
                         sh->content_type, MK_IOV_NOT_FREE_BUF);
    }

    /*
     * Transfer Encoding: the transfer encoding header is just sent when
     * the response has some content defined by the HTTP status response
     */
    if ((sh->status < MK_REDIR_MULTIPLE) || (sh->status > MK_REDIR_USE_PROXY)) {
        switch (sh->transfer_encoding) {
        case MK_HEADER_TE_TYPE_CHUNKED:
            mk_iov_add_entry(iov,
                             mk_header_te_chunked.data,
                             mk_header_te_chunked.len,
                             mk_iov_none, MK_IOV_NOT_FREE_BUF);
            break;
        }
    }

    /* Content-Encoding */
    if (sh->content_encoding.len > 0) {
        mk_iov_add_entry(iov, mk_header_content_encoding.data,
                         mk_header_content_encoding.len,
                         mk_iov_none, MK_IOV_NOT_FREE_BUF);
        mk_iov_add_entry(iov, sh->content_encoding.data,
                         sh->content_encoding.len,
                         mk_iov_none, MK_IOV_NOT_FREE_BUF);
    }

    /* Content-Length */
    if (sh->content_length >= 0) {
        /* Map content length to MK_POINTER */
        mk_pointer *cl;
        cl = mk_cache_get(mk_cache_header_cl);
        mk_string_itop(sh->content_length, cl);

        /* Set headers */
        mk_iov_add_entry(iov, mk_header_content_length.data,
                         mk_header_content_length.len,
                         *cl, MK_IOV_NOT_FREE_BUF);
    }

    if ((sh->content_length != 0 && (sh->ranges[0] >= 0 || sh->ranges[1] >= 0)) &&
        config->resume == MK_TRUE) {
        buffer = 0;

        /* yyy- */
        if (sh->ranges[0] >= 0 && sh->ranges[1] == -1) {
            mk_string_build(&buffer,
                            &len,
                            "%s bytes %d-%ld/%ld",
                            RH_CONTENT_RANGE,
                            sh->ranges[0],
                            (sh->real_length - 1), sh->real_length);
            mk_iov_add_entry(iov, buffer, len, mk_iov_crlf, MK_IOV_FREE_BUF);
        }

        /* yyy-xxx */
        if (sh->ranges[0] >= 0 && sh->ranges[1] >= 0) {
            mk_string_build(&buffer,
                            &len,
                            "%s bytes %d-%d/%ld",
                            RH_CONTENT_RANGE,
                            sh->ranges[0], sh->ranges[1], sh->real_length);

            mk_iov_add_entry(iov, buffer, len, mk_iov_crlf, MK_IOV_FREE_BUF);
        }

        /* -xxx */
        if (sh->ranges[0] == -1 && sh->ranges[1] > 0) {
            mk_string_build(&buffer,
                            &len,
                            "%s bytes %ld-%ld/%ld",
                            RH_CONTENT_RANGE,
                            (sh->real_length - sh->ranges[1]),
                            (sh->real_length - 1), sh->real_length);
            mk_iov_add_entry(iov, buffer, len, mk_iov_crlf, MK_IOV_FREE_BUF);
        }
    }

    mk_socket_set_cork_flag(fd, TCP_CORK_ON);

    if (sh->cgi == SH_NOCGI || sh->breakline == MK_HEADER_BREAKLINE) {
        if (!sr->headers._extra_rows) {
            mk_iov_add_entry(iov, mk_iov_crlf.data, mk_iov_crlf.len,
                             mk_iov_none, MK_IOV_NOT_FREE_BUF);
        }
        else {
            mk_iov_add_entry(sr->headers._extra_rows, mk_iov_crlf.data,
                             mk_iov_crlf.len, mk_iov_none, MK_IOV_NOT_FREE_BUF);
        }
    }

    mk_socket_sendv(fd, iov);
    if (sr->headers._extra_rows) {
        mk_socket_sendv(fd, sr->headers._extra_rows);
        mk_iov_free(sr->headers._extra_rows);
        sr->headers._extra_rows = NULL;
    }

    mk_header_iov_free(iov);
    sh->sent = MK_TRUE;

    return 0;
}