jk_isapi_plugin.c

jboss与apache集成的中间件,详情请参看文档说明.

    s->reco_status = RECO_NONE;

    while (hdrs < limit) {
        /* Skip line *before* doing anything, cos we want to lose the first line which
         * contains the request.
         */
        while (hdrs < limit && (*hdrs != '\n' && *hdrs != '\r'))
            hdrs++;
        while (hdrs < limit && (*hdrs == '\n' || *hdrs == '\r'))
            hdrs++;

        if (hdrs >= limit)
            break;

        name = nameEnd = value = valueEnd = NULL;

        name = hdrs;
        while (hdrs < limit && *hdrs >= ' ' && *hdrs != ':')
            hdrs++;
        nameEnd = hdrs;

        if (hdrs < limit && *hdrs == ':') {
            hdrs++;
            while (hdrs < limit && (*hdrs == ' ' || *hdrs == '\t'))
                hdrs++;
            value = hdrs;
            while (hdrs < limit && *hdrs >= ' ')
                hdrs++;
            valueEnd = hdrs;
        }

        if (s->headers_names != NULL && s->headers_values != NULL) {
            s->headers_names[hdrCount] = MemDup(ws, name, nameEnd);
            s->headers_values[hdrCount] = MemDup(ws, value, valueEnd);
            DEBUG(("%s = %s\n", s->headers_names[hdrCount],
                   s->headers_values[hdrCount]));
        }
        hdrCount++;
    }

    return hdrCount;
}

#if 0
/* Set up all the necessary jk_* workspace based on the current HTTP request.
 */
static int InitService(private_ws_t * ws, jk_ws_service_t *s)
{
    /* This is the only fixed size buffer left. It won't be overflowed
     * because the the server API that reads into the buffer accepts a length
     * constraint, and it's unlikely ever to be exhausted because the
     * strings being will typically be short, but it's still aesthetically
     * troublesome.
     */
    char workBuf[16 * 1024];
    FilterRequest fr;
    char *hdrs, *qp;
    int hdrsz;
    int errID;
    int hdrCount;
    int rc /*, dummy */ ;

    static char *methodName[] =
        { "", "HEAD", "GET", "POST", "PUT", "DELETE" };

    rc = ws->context->GetRequest(ws->context, &fr, &errID);

    s->jvm_route = NULL;
    s->start_response = StartResponse;
    s->read = Read;
    s->write = Write;

    s->req_uri = jk_pool_strdup(&ws->p, fr.URL);
    s->query_string = NULL;
    if (qp = strchr(s->req_uri, '?'), qp != NULL) {
        *qp++ = '\0';
        if (strlen(qp))
            s->query_string = qp;
    }

    GETVARIABLE("AUTH_TYPE", &s->auth_type, "");
    GETVARIABLE("REMOTE_USER", &s->remote_user, "");
    GETVARIABLE("SERVER_PROTOCOL", &s->protocol, "");
    GETVARIABLE("REMOTE_HOST", &s->remote_host, "");
    GETVARIABLE("REMOTE_ADDR", &s->remote_addr, "");
    GETVARIABLE("SERVER_NAME", &s->server_name, "");
    GETVARIABLEINT("SERVER_PORT", &s->server_port, 80);
    GETVARIABLE("SERVER_SOFTWARE", &s->server_software, SERVERDFLT);
    GETVARIABLEINT("CONTENT_LENGTH", &s->content_length, 0);


    /* SSL Support
     */
    GETVARIABLEBOOL("HTTPS", &s->is_ssl, 0);

    if (ws->reqData->requestMethod < 0 ||
        ws->reqData->requestMethod >=
        sizeof(methodName) / sizeof(methodName[0]))
        return JK_FALSE;

    s->method = methodName[ws->reqData->requestMethod];

    s->headers_names = NULL;
    s->headers_values = NULL;
    s->num_headers = 0;

    s->ssl_cert_len = fr.clientCertLen;
    s->ssl_cert = fr.clientCert;
    s->ssl_cipher = NULL;       /* required by Servlet 2.3 Api */
    s->ssl_session = NULL;

#if defined(JK_VERSION) && JK_VERSION >= MAKEVERSION(1, 2, 0, 1)
    s->ssl_key_size = -1;       /* required by Servlet 2.3 Api, added in jtc */
#endif

    if (s->is_ssl) {
        int dummy;
#if 0
        char *sslNames[] = {
            "CERT_ISSUER", "CERT_SUBJECT", "CERT_COOKIE", "CERT_FLAGS",
                "CERT_SERIALNUMBER",
            "HTTPS_SERVER_SUBJECT", "HTTPS_SECRETKEYSIZE",
                "HTTPS_SERVER_ISSUER", "HTTPS_KEYSIZE"
        };

        char *sslValues[] = {
            NULL, NULL, NULL, NULL, NULL,
            NULL, NULL, NULL, NULL
        };


        unsigned i, varCount = 0;
#endif

        DEBUG(("SSL request\n"));

#if defined(JK_VERSION) && JK_VERSION >= MAKEVERSION(1, 2, 0, 1)
        /* Read the variable into a dummy variable: we do this for the side effect of
         * reading it into workBuf.
         */
        GETVARIABLEINT("HTTPS_KEYSIZE", &dummy, 0);
        if (workBuf[0] == '[')
            s->ssl_key_size = atoi(workBuf + 1);
#else
        (void)dummy;
#endif

#if 0
        for (i = 0; i < sizeof(sslNames) / sizeof(sslNames[0]); i++) {
            GETVARIABLE(sslNames[i], &sslValues[i], NULL);
            if (sslValues[i])
                varCount++;
        }

        /* Andy, some SSL vars must be mapped directly in  s->ssl_cipher,
         * ssl->session and s->ssl_key_size
         * ie:
         * Cipher could be "RC4-MD5"
         * KeySize 128 (bits)
         * SessionID a string containing the UniqID used in SSL dialogue
         */
        if (varCount > 0) {
            unsigned j;

            s->attributes_names =
                jk_pool_alloc(&ws->p, varCount * sizeof(char *));
            s->attributes_values =
                jk_pool_alloc(&ws->p, varCount * sizeof(char *));

            j = 0;
            for (i = 0; i < sizeof(sslNames) / sizeof(sslNames[0]); i++) {
                if (sslValues[i]) {
                    s->attributes_names[j] = sslNames[i];
                    s->attributes_values[j] = sslValues[i];
                    j++;
                }
            }
            s->num_attributes = varCount;
        }
#endif
    }

    /* Duplicate all the headers now */

    hdrsz = ws->reqData->GetAllHeaders(ws->context, &hdrs, &errID);
    DEBUG(("\nGot headers (length %d)\n--------\n%s\n--------\n\n", hdrsz,
           hdrs));

    s->headers_names = s->headers_values = NULL;
    hdrCount = ParseHeaders(ws, hdrs, hdrsz, s);
    DEBUG(("Found %d headers\n", hdrCount));
    s->num_headers = hdrCount;
    s->headers_names = jk_pool_alloc(&ws->p, hdrCount * sizeof(char *));
    s->headers_values = jk_pool_alloc(&ws->p, hdrCount * sizeof(char *));
    hdrCount = ParseHeaders(ws, hdrs, hdrsz, s);

    return JK_TRUE;
}
#endif

#if 0
/* Handle an HTTP request. Works out whether Tomcat will be interested then either
 * despatches it to Tomcat or passes it back to the server.
 */
static unsigned int ParsedRequest(PHTTP_FILTER_CONTEXT * context,
                                  FilterParsedRequest * reqData)
{
    unsigned int errID;
    int rc;
    FilterRequest fr;
    int result = kFilterNotHandled;

    DEBUG(("\nParsedRequest starting\n"));

    rc = context->GetRequest(context, &fr, &errID);

    if (fr.URL && strlen(fr.URL)) {
        char *uri = fr.URL;
        char *workerName, *qp;

        if (!initDone) {
            /* One time initialisation which is deferred so that we have the name of
             * the server software to plug into worker_env
             */
            int ok = JK_FALSE;
            jk_map_t *map = NULL;

            DEBUG(("Initialising worker map\n"));

            if (jk_map_alloc(&map)) {
                if (jk_map_read_properties(map, workerMountFile))
                    if (uri_worker_map_alloc(&uw_map, map, logger))
                        ok = JK_TRUE;
                jk_map_free(&map);
            }

            DEBUG(("Got the URI worker map\n"));

            if (ok) {
                ok = JK_FALSE;
                DEBUG(("About to allocate map\n"));
                if (jk_map_alloc(&map)) {
                    DEBUG(("About to read %s\n", workerFile));
                    if (jk_map_read_properties(map, workerFile)) {
#if defined(JK_VERSION) && JK_VERSION >= MAKEVERSION(1, 2, 0, 1)
                        char server[256];

                        worker_env.uri_to_worker = uw_map;
                        if (context->
                            GetServerVariable(context, "SERVER_SOFTWARE",
                                              server, sizeof(server) - 1,
                                              &errID))
                            worker_env.server_name =
                                jk_pool_strdup(&cfgPool, server);
                        else
                            worker_env.server_name = SERVERDFLT;

                        DEBUG(("Server name %s\n", worker_env.server_name));

                        if (wc_open(map, &worker_env, logger))
                            ok = JK_TRUE;
#else
                        if (wc_open(map, logger))
                            ok = JK_TRUE;
#endif
                        DEBUG(("OK = %d\n", ok));
                    }

                    DEBUG(("Read %s, OK = %d\n", workerFile, ok));
                    jk_map_free(&map);
                }
            }

            if (!ok)
                return kFilterError;
            initDone = JK_TRUE;
        }


        if (qp = strchr(uri, '?'), qp != NULL)
            *qp = '\0';
        workerName = map_uri_to_worker(uw_map, uri, logger);
        if (qp)
            *qp = '?';

        DEBUG(("Worker for this URL is %s\n", workerName));

        if (NULL != workerName) {
            private_ws_t ws;
            jk_ws_service_t s;
            jk_pool_atom_t buf[SMALL_POOL_SIZE];

            if (BadURI(uri))
                return RejectBadURI(context);

            /* Go dispatch the call */

            jk_init_ws_service(&s);
            jk_open_pool(&ws.p, buf, sizeof(buf));

            ws.responseStarted = JK_FALSE;
            ws.context = context;
            ws.reqData = reqData;

            ws.reqSize =
                context->GetRequestContents(context, &ws.reqBuffer, &errID);

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

            if (InitService(&ws, &s)) {
                jk_worker_t *worker =
                    wc_get_worker_for_name(workerName, logger);

                jk_log(logger, JK_LOG_DEBUG,
                       "HttpExtensionProc %s a worker for name %s\n",
                       worker ? "got" : "could not get", workerName);

                if (worker) {
                    jk_endpoint_t *e = NULL;

                    if (worker->get_endpoint(worker, &e, logger)) {
                        int recover = JK_FALSE;

                        if (e->service(e, &s, logger, &recover)) {
                            result = kFilterHandledRequest;
                            jk_log(logger, JK_LOG_DEBUG,
                                   "HttpExtensionProc service() returned OK\n");
                            DEBUG(("HttpExtensionProc service() returned OK\n"));
                        }
                        else {
                            result = kFilterError;
                            jk_log(logger, JK_LOG_ERROR,
                                   "HttpExtensionProc error, service() failed\n");
                            DEBUG(("HttpExtensionProc error, service() failed\n"));
                        }
                        e->done(&e, logger);
                    }
                }
                else {
                    jk_log(logger, JK_LOG_ERROR,
                           "HttpExtensionProc error, could not get a worker for name %s\n",
                           workerName);
                }
            }

            jk_close_pool(&ws.p);
        }
    }

    return result;
}
#endif

BOOL WINAPI DllMain(HINSTANCE hInst, ULONG ulReason, LPVOID lpReserved)
{
    BOOL fReturn = TRUE;

    switch (ulReason) {

    case DLL_PROCESS_DETACH:
        TerminateFilter(HSE_TERM_MUST_UNLOAD);
        break;

    default:
        break;
    }

    return fReturn;
}