Function proxy_ajp_handler

modules/proxy/mod_proxy_ajp.c:771–862

* This handles ajp:// URLs */

 * This handles ajp:// URLs
 */
static int proxy_ajp_handler(request_rec *r, proxy_worker *worker,
                             proxy_server_conf *conf,
                             char *url, const char *proxyname,
                             apr_port_t proxyport)
{
    int status;
    char server_portstr[32];
    conn_rec *origin = NULL;
    proxy_conn_rec *backend = NULL;
    const char *scheme = "AJP";
    int retry;
    proxy_dir_conf *dconf = ap_get_module_config(r->per_dir_config,
                                                 &proxy_module);
    apr_pool_t *p = r->pool;
    apr_uri_t *uri;

    if (ap_cstr_casecmpn(url, "ajp:", 4) != 0) {
        ap_log_rerror(APLOG_MARK, APLOG_DEBUG, 0, r, APLOGNO(00894) "declining URL %s", url);
        return DECLINED;
    }

    uri = apr_palloc(p, sizeof(*uri));
    ap_log_rerror(APLOG_MARK, APLOG_DEBUG, 0, r, APLOGNO(00895) "serving URL %s", url);

    /* create space for state information */
    status = ap_proxy_acquire_connection(scheme, &backend, worker,
                                         r->server);
    if (status != OK) {
        if (backend) {
            backend->close = 1;
            ap_proxy_release_connection(scheme, backend, r->server);
        }
        return status;
    }

    backend->is_ssl = 0;
    backend->close = 0;

    retry = 0;
    while (retry < 2) {
        char *locurl = url;
        /* Step One: Determine Who To Connect To */
        status = ap_proxy_determine_connection(p, r, conf, worker, backend,
                                               uri, &locurl, proxyname, proxyport,
                                               server_portstr,
                                               sizeof(server_portstr));

        if (status != OK)
            break;

        /* Step Two: Make the Connection */
        if (ap_proxy_check_connection(scheme, backend, r->server, 0,
                                      PROXY_CHECK_CONN_EMPTY)
                && ap_proxy_connect_backend(scheme, backend, worker,
                                            r->server)) {
            ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, r, APLOGNO(00896)
                          "failed to make connection to backend: %s",
                          backend->hostname);