jk_nsapi_plugin.c

Tomcat 4.1与WebServer集成组件的源代码包.

    if(!worker_prp_file) {
        worker_prp_file = JK_WORKER_FILE_DEF;
    }

    if(!log_level_str) {
        log_level_str = JK_LOG_LEVEL_DEF;
    }    
    
    if(!jk_open_file_logger(&logger, log_file, 
                            jk_parse_log_level(log_level_str))) {
        logger = NULL;
    }

    if(map_alloc(&init_map)) {
        if(map_read_properties(init_map, worker_prp_file)) {
            int sleep_cnt;
            SYS_THREAD s;
            
            s = systhread_start(SYSTHREAD_DEFAULT_PRIORITY, 
                                0, 
                                init_workers_on_other_threads, 
                                init_map);
            for(sleep_cnt = 0 ; sleep_cnt < 60 ; sleep_cnt++) {
                systhread_sleep(1000);
                jk_log(logger, JK_LOG_DEBUG, "jk_init, a second passed\n");
                if(init_on_other_thread_is_done) {
                    break;
                }
            }

            if(init_on_other_thread_is_done &&
               init_on_other_thread_is_ok) {
                magnus_atrestart(jk_term, NULL);
                rc = REQ_PROCEED;
            }

/*            if(wc_open(init_map, NULL, logger)) {
                magnus_atrestart(jk_term, NULL);
                rc = REQ_PROCEED;
            }
*/
        }
        
        map_free(&init_map);
    }

#ifdef NETWARE
    PR_IsSocketSecure = (int (*)(void **))ImportSymbol(GetNLMHandle(), "PR_IsSocketSecure");
#endif
    return rc;    
}

NSAPI_PUBLIC void jk_term(void *p)
{
#ifdef NETWARE
    if (NULL != PR_IsSocketSecure)
    {
       UnimportSymbol(GetNLMHandle(), "PR_IsSocketSecure");
       PR_IsSocketSecure = NULL;
    }
#endif
    wc_close(logger);
    if(logger) {
        jk_close_file_logger(&logger);
    }
}

NSAPI_PUBLIC int jk_service(pblock *pb,
                            Session *sn,
                            Request *rq)
{
    char *worker_name = pblock_findval(JK_WORKER_NAME_TAG, pb); 
    char *uri_pattern = pblock_findval(URI_PATTERN, pb);     
    jk_worker_t *worker;    
    int rc = REQ_ABORTED;

    if(uri_pattern) {
        char *uri = pblock_findval("uri", rq->reqpb);

        if(0 != shexp_match(uri, uri_pattern)) {
            return REQ_NOACTION;
        }        
    }

    if(!worker_name) {
        worker_name = DEFAULT_WORKER_NAME;
    }

    worker = wc_get_worker_for_name(worker_name, logger);
    if(worker) {
        nsapi_private_data_t private_data;
        jk_ws_service_t s;
        jk_pool_atom_t buf[SMALL_POOL_SIZE];

        jk_open_pool(&private_data.p, buf, sizeof(buf));

        private_data.request_started = JK_FALSE;
        private_data.pb = pb;
        private_data.sn = sn;
        private_data.rq = rq;

        jk_init_ws_service(&s);

        s.ws_private = &private_data;
        s.pool = &private_data.p;

        if(init_ws_service(&private_data, &s)) {
            jk_endpoint_t *e = NULL;
            if(worker->get_endpoint(worker, &e, logger)) {                
                int recover = JK_FALSE;
                if(e->service(e, &s, logger, &recover)) {
                    rc = REQ_PROCEED;
                }
                e->done(&e, logger);
            }
        }
        jk_close_pool(&private_data.p);
    }

    return rc;
}

static int init_ws_service(nsapi_private_data_t *private_data,
                           jk_ws_service_t *s) 
{
    char *tmp;
    int rc;

    s->jvm_route = NULL;
    s->start_response = start_response;
    s->read = ws_read;
    s->write = ws_write;
    
    s->auth_type        = pblock_findval("auth-type", private_data->rq->vars);
    s->remote_user      = pblock_findval("auth-user", private_data->rq->vars);

    s->content_length   = 0;
    tmp = NULL;
    rc  = request_header("content-length", 
                         &tmp, 
                         private_data->sn, 
                         private_data->rq);

    if((rc != REQ_ABORTED) && tmp) {
        s->content_length = atoi(tmp);
    }
    
    s->method           = pblock_findval("method", private_data->rq->reqpb);
    s->protocol         = pblock_findval("protocol", private_data->rq->reqpb);
    
    s->remote_host      = session_dns(private_data->sn);
    s->remote_addr      = pblock_findval("ip", private_data->sn->client);
    
    s->req_uri          = pblock_findval("uri", private_data->rq->reqpb);
    s->query_string     = pblock_findval("query", private_data->rq->reqpb);

    s->server_name      = server_hostname;
    
#ifdef NETWARE
    /* On NetWare, since we have virtual servers, we have a different way of
     * getting the port that we need to try first.
     */
    tmp = pblock_findval("server_port", private_data->sn->client);
    if (NULL != tmp)
        s->server_port = atoi(tmp);
    else
#endif
    s->server_port      = server_portnum;
    s->server_software  = system_version();


    s->headers_names    = NULL;
    s->headers_values   = NULL;
    s->num_headers      = 0;
    
#ifdef NETWARE
    /* on NetWare, we can have virtual servers that are secure.  
     * PR_IsSocketSecure is an api made available with virtual servers to check
     * if the socket is secure or not
     */
    if (NULL != PR_IsSocketSecure)
        s->is_ssl       = PR_IsSocketSecure(private_data->sn->csd);
    else
#endif
    s->is_ssl           = security_active;

    s->ssl_key_size     = -1; /* required by Servlet 2.3 Api, added in jtc */
    if(s->is_ssl) {
        s->ssl_cert     = pblock_findval("auth-cert", private_data->rq->vars);
        if(s->ssl_cert) {
            s->ssl_cert_len = strlen(s->ssl_cert);
        }
        s->ssl_cipher   = pblock_findval("cipher", private_data->sn->client);
        s->ssl_session  = pblock_findval("ssl-id", private_data->sn->client);
    } else {
        s->ssl_cert     = NULL;
        s->ssl_cert_len = 0;
        s->ssl_cipher   = NULL;
        s->ssl_session  = NULL;
    }

    return setup_http_headers(private_data, s);
}

static int setup_http_headers(nsapi_private_data_t *private_data,
                              jk_ws_service_t *s) 
{
    int need_content_length_header = (s->content_length == 0) ? JK_TRUE : JK_FALSE; 

    pblock *headers_jar = private_data->rq->headers;
    int cnt;
    int i;

    for(i = 0, cnt = 0 ; i < headers_jar->hsize ; i++) {
        struct pb_entry *h = headers_jar->ht[i];
        while(h && h->param) {
            cnt++;
            h = h->next;
        }
    }

    s->headers_names  = NULL;
    s->headers_values = NULL;
    s->num_headers = cnt;
    if(cnt) {
        /* allocate an extra header slot in case we need to add a content-length header */
        s->headers_names  = jk_pool_alloc(&private_data->p, (cnt + 1) * sizeof(char *));
        s->headers_values = jk_pool_alloc(&private_data->p, (cnt + 1) * sizeof(char *));

        if(s->headers_names && s->headers_values) {            
            for(i = 0, cnt = 0 ; i < headers_jar->hsize ; i++) {
                struct pb_entry *h = headers_jar->ht[i];
                while(h && h->param) {
                    s->headers_names[cnt]  = h->param->name;
                    s->headers_values[cnt] = h->param->value;
                    if(need_content_length_header &&
                            !strncmp(h->param->name,"content-length",14)) {
                        need_content_length_header = JK_FALSE;
                    }
                    cnt++;
                    h = h->next;
                }
            }
            /* Add a content-length = 0 header if needed. 
             * Ajp13 assumes an absent content-length header means an unknown, 
             * but non-zero length body. 
             */ 
            if(need_content_length_header) {
                s->headers_names[cnt] = "content-length"; 
                s->headers_values[cnt] = "0"; 
                cnt++;
            }
            s->num_headers = cnt;
            return JK_TRUE;
        }
    } else {
        if (need_content_length_header) {
            s->headers_names  = jk_pool_alloc(&private_data->p, sizeof(char *));
            s->headers_values = jk_pool_alloc(&private_data->p, sizeof(char *));
            if(s->headers_names && s->headers_values) {
                s->headers_names[0] = "content-length"; 
                s->headers_values[0] = "0"; 
                s->num_headers++;
                return JK_TRUE;
            }
        }
        else
            return JK_TRUE;
    }

    return JK_FALSE;
}