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#include <jvm.h>
extern struct uwsgi_server uwsgi;
extern struct uwsgi_jvm ujvm;
#define UWSGI_JVM_REQUEST_HANDLER_JWSGI 0
struct uwsgi_jwsgi {
char *app;
jmethodID app_mid;
jclass app_class;
jobject app_instance;
} ujwsgi;
static struct uwsgi_option uwsgi_jwsgi_options[] = {
{"jwsgi", required_argument, 0, "load the specified JWSGI application (syntax class:method)", uwsgi_opt_set_str, &ujwsgi.app, 0},
{0, 0, 0, 0},
};
static int uwsgi_jwsgi_add_request_item(jobject hm, char *key, uint16_t key_len, char *value, uint16_t value_len) {
jobject j_key = uwsgi_jvm_str(key, key_len);
if (!j_key) return -1;
jobject j_value = NULL;
// avoid clobbering vars
if (value_len > 0) {
j_value = uwsgi_jvm_str(value, value_len);
}
else {
char *tmp = uwsgi_str("");
j_value = uwsgi_jvm_str(tmp, 0);
free(tmp);
}
if (!j_value) {
uwsgi_jvm_local_unref(j_value);
return -1;
}
int ret = uwsgi_jvm_hashmap_put(hm, j_key, j_value);
uwsgi_jvm_local_unref(j_key);
uwsgi_jvm_local_unref(j_value);
return ret;
}
static int uwsgi_jwsgi_add_request_input(jobject hm, char *key, uint16_t key_len) {
jobject j_key = uwsgi_jvm_str(key, key_len);
if (!j_key) return -1;
jobject j_value = uwsgi_jvm_request_body_input_stream();
if (!j_value) {
uwsgi_jvm_local_unref(j_value);
return -1;
}
int ret = uwsgi_jvm_hashmap_put(hm, j_key, j_value);
uwsgi_jvm_local_unref(j_key);
uwsgi_jvm_local_unref(j_value);
return ret;
}
static int uwsgi_jwsgi_request(struct wsgi_request *wsgi_req) {
char status_str[11];
jobject hm = NULL;
jobject response = NULL;
jobject r_status = NULL;
jobject r_headers = NULL;
jobject r_headers_entries = NULL;
jobject r_body = NULL;
hm = uwsgi_jvm_hashmap();
if (!hm) return -1;
int i;
for(i=0;i<wsgi_req->var_cnt;i+=2) {
char *hk = wsgi_req->hvec[i].iov_base;
uint16_t hk_l = wsgi_req->hvec[i].iov_len;
char *hv = wsgi_req->hvec[i+1].iov_base;
uint16_t hv_l = wsgi_req->hvec[i+1].iov_len;
if (uwsgi_jwsgi_add_request_item(hm, hk, hk_l, hv, hv_l)) goto end;
}
if (uwsgi_jwsgi_add_request_input(hm, "jwsgi.input", 11)) goto end;
if (!ujwsgi.app_instance) {
response = uwsgi_jvm_call_object_static(ujwsgi.app_class, ujwsgi.app_mid, hm);
}
else {
response = uwsgi_jvm_call_object(ujwsgi.app_instance, ujwsgi.app_mid, hm);
}
if (!response) goto end;
if (uwsgi_jvm_array_len(response) != 3) {
uwsgi_log("invalid JWSGI response object\n");
goto end;
}
r_status = uwsgi_jvm_array_get(response, 0);
if (!r_status) goto end;
long n_status = uwsgi_jvm_number2c(r_status);
if (n_status == -1) goto end;
if (uwsgi_num2str2(n_status, status_str) != 3) {
goto end;
}
if (uwsgi_response_prepare_headers(wsgi_req, status_str, 3)) goto end;
r_headers = uwsgi_jvm_array_get(response, 1);
if (!r_headers) goto end;
// get entrySet
r_headers_entries = uwsgi_jvm_entryset(r_headers);
if (!r_headers_entries) goto end;
// get iterator
jobject values = uwsgi_jvm_auto_iterator(r_headers_entries);
if (values) {
int ret = uwsgi_jvm_iterator_to_response_headers(wsgi_req, values);
uwsgi_jvm_local_unref(values);
if (ret) goto end;
}
else {
uwsgi_log("unsupported response headers type !!! (must be java/util/HashMap)\n");
goto end;
}
r_body = uwsgi_jvm_array_get(response, 2);
if (!r_body) goto end;
if (uwsgi_jvm_object_to_response_body(wsgi_req, r_body)) {
uwsgi_log("unsupported JWSGI response body type\n");
}
end:
if (r_status) uwsgi_jvm_local_unref(r_status);
if (r_headers_entries) uwsgi_jvm_local_unref(r_headers_entries);
if (r_headers) uwsgi_jvm_local_unref(r_headers);
if (r_body) uwsgi_jvm_local_unref(r_body);
if (response) {
uwsgi_jvm_local_unref(response);
}
uwsgi_jvm_local_unref(hm);
return UWSGI_OK;
}
static int uwsgi_jwsgi_setup() {
char *app = uwsgi_str(ujwsgi.app);
char *method = "application";
char *colon = strchr(app, ':');
if (colon) {
*colon = 0;
method = colon + 1;
}
ujwsgi.app_class = uwsgi_jvm_class(app);
if (!ujwsgi.app_class) {
exit(1);
}
ujwsgi.app_mid = uwsgi_jvm_get_static_method_id_quiet(ujwsgi.app_class, method, "(Ljava/util/HashMap;)[Ljava/lang/Object;");
if (uwsgi_jvm_exception() || !ujwsgi.app_mid) {
jmethodID mid = uwsgi_jvm_get_method_id(ujwsgi.app_class, "<init>", "()V");
if (uwsgi_jvm_exception() || !mid) exit(1);
ujwsgi.app_instance = (*ujvm_env)->NewObject(ujvm_env, ujwsgi.app_class, mid);
if (uwsgi_jvm_exception() || !ujwsgi.app_instance) {
exit(1);
}
ujwsgi.app_mid = uwsgi_jvm_get_method_id(ujwsgi.app_class, method, "(Ljava/util/HashMap;)[Ljava/lang/Object;");
if (uwsgi_jvm_exception() || !ujwsgi.app_mid) {
exit(1);
}
}
uwsgi_log("JWSGI app \"%s\" loaded\n", ujwsgi.app);
return 0;
}
static int uwsgi_jwsgi_init() {
if (!ujwsgi.app) return 0;
if (uwsgi_jvm_register_request_handler(UWSGI_JVM_REQUEST_HANDLER_JWSGI, uwsgi_jwsgi_setup, uwsgi_jwsgi_request)) {
exit(1);
}
return 0;
}
struct uwsgi_plugin jwsgi_plugin = {
.name = "jwsgi",
.options = uwsgi_jwsgi_options,
.init = uwsgi_jwsgi_init,
};
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