[Change] SpringCQMessageEvent 更新 getImageUrl 具体实现, 首选BotCode中url地址;

[Change] BotEventHandler 调整initial代码;

src/main/java/net/lamgc/cgj/bot/event/BotEventHandler.java

@@ -62,7 +62,19 @@ public class BotEventHandler implements EventHandler {
                     .build()
     ));
 
+    private static boolean initialled = false;
     static {
+        initial();
+    }
+
+    public synchronized static void initial() {
+        if(initialled) {
+            Logger logger = LoggerFactory.getLogger("BotEventHandler@<init>");
+            logger.warn("BotEventHandler已经执行过初始化方法, 可能存在多次执行的问题, 堆栈信息: \n {}",
+                    Throwables.getStackTraceAsString(new Exception()));
+            return;
+        }
+
         executor.setEventUncaughtExceptionHandler(new EventUncaughtExceptionHandler() {
             private final Logger log = LoggerFactory.getLogger("EventUncaughtExceptionHandler");
             @Override
@@ -77,10 +89,10 @@ public class BotEventHandler implements EventHandler {
         });
         try {
             executor.addHandler(new BotEventHandler());
-            executor.addHandler(new TestEventHandler());
         } catch (IllegalAccessException e) {
             LoggerFactory.getLogger("BotEventHandler@Static").error("添加Handler时发生异常", e);
         }
+        initialled = true;
     }
 
     private BotEventHandler() {

src/main/java/net/lamgc/cgj/bot/event/SpringCQMessageEvent.java

@@ -1,5 +1,6 @@
 package net.lamgc.cgj.bot.event;
 
+import net.lamgc.cgj.bot.BotCode;
 import net.lz1998.cq.event.message.CQDiscussMessageEvent;
 import net.lz1998.cq.event.message.CQGroupMessageEvent;
 import net.lz1998.cq.event.message.CQMessageEvent;
@@ -49,13 +50,17 @@ public class SpringCQMessageEvent extends MessageEvent {
     }
 
     /**
-     * 该功能在CQ上需要CQHttp插件启用http接口调用和serve_data_files为true.
-     * 如使用本方法, 则对方需开启5700端口, 且可能会影响多机器人处理.
-     * @param imageFileName 图片文件名
+     * 通过CQ码获取图片下载链接.
+     * @param imageFileName 图片完整CQ码
      * @return 图片下载链接
      */
     @Override
     public String getImageUrl(String imageFileName) {
+        BotCode code;
+        if(imageFileName.startsWith("[CQ:") && imageFileName.endsWith("]")) {
+            code = BotCode.parse(imageFileName);
+            return code.getParameter("url");
+        } else {
             InetSocketAddress remoteAddress = cq.getBotSession().getRemoteAddress();
             if(remoteAddress == null) {
                 throw new IllegalStateException("remoteAddress failed to get");
@@ -63,6 +68,7 @@ public class SpringCQMessageEvent extends MessageEvent {
             String file = cq.getImage(imageFileName).getData().getFile().replaceAll("\\\\", "/");
             return "http://" + remoteAddress.getHostString() + ":5700/data" + file.substring(file.lastIndexOf("/data") + 5);
         }
+    }
 
     @Override
     public Object getRawMessage() {