记录POST传参

Author: kilingzhang

include/utils.h

@@ -98,6 +98,8 @@ std::string find_server_string(const char *key, size_t len);
 
 zval *find_server_zval(const char *key, size_t len);
 
+zval *get_post_zval();
+
 /**
  *
  * @return

src/core.cc

@@ -274,6 +274,15 @@ void start_tracer(std::string traceparent, std::string tracebaggage, opentelemet
 		std::string request_remote_ip = find_server_string("REMOTE_ADDR", sizeof("REMOTE_ADDR") - 1);
 
 		set_string_attribute(span->add_attributes(), "http.method", request_method);
+
+		//记录POST传参数
+		if (is_equal(request_method, "POST")) {
+			zval *post = get_post_zval();
+			if (post) {
+				set_string_attribute(span->add_attributes(), "http.params", opentelemetry_json_encode(post));
+			}
+		}
+
 		set_string_attribute(span->add_attributes(), "http.host", request_http_host);
 		set_string_attribute(span->add_attributes(), "http.target", request_uri);
 		set_string_attribute(span->add_attributes(), "http.client_ip", request_remote_ip);

src/utils.cc

@@ -231,6 +231,16 @@ zval *find_server_zval(const char *key, size_t len) {
 	return server_value;
 }
 
+zval *get_post_zval() {
+	zend_bool jit_initialization = PG(auto_globals_jit);
+	if (jit_initialization) {
+		zend_string *str = zend_string_init("_POST", sizeof("_POST") - 1, 0);
+		zend_is_auto_global(str);
+		zend_string_release(str);
+	}
+	return zend_hash_str_find(&EG(symbol_table), ZEND_STRL("_POST"));
+}
+
 boost::uuids::uuid generate_span_id() {
 	return boost::uuids::random_generator()();
 }