From 03e346554f3f36e1f4bc1fce67e0d9f9dfd798e8 Mon Sep 17 00:00:00 2001
From: "Christian P. MOMON" <christian.momon@devinsy.fr>
Date: Tue, 13 Apr 2021 04:23:31 +0200
Subject: [PATCH] Fixed connexion exception retry (#5261).

---
 src/org/april/hebdobot/bot/Hebdobot.java | 82 ++++++++++++++----------
 1 file changed, 48 insertions(+), 34 deletions(-)

diff --git a/src/org/april/hebdobot/bot/Hebdobot.java b/src/org/april/hebdobot/bot/Hebdobot.java
index 12d4f1b..230c32c 100644
--- a/src/org/april/hebdobot/bot/Hebdobot.java
+++ b/src/org/april/hebdobot/bot/Hebdobot.java
@@ -400,6 +400,7 @@ public class Hebdobot extends PircBot
      */
     public void run() throws HebdobotException
     {
+        //
         try
         {
             logger.info("Cron initializing.");
@@ -408,46 +409,59 @@ public class Hebdobot extends PircBot
                 this.cronManager.start();
             }
             logger.info("Cron initialized.");
-
-            logger.info("Bot connection.");
-            this.connect(this.host, this.port);
-            logger.info("Bot connected.");
-
-            if (this.identifyPassword == null)
-            {
-                logger.info("Skipped identify.");
-            }
-            else
-            {
-                logger.info("Apply identify.");
-                sendMessage("NickServ", "identify " + this.identifyNick + " " + this.identifyPassword);
-                logger.info("Applied identify.");
-            }
-
-            logger.info("Bot joining channel ({}).", this.channel);
-            this.joinChannel(this.channel);
-            logger.info("Bot ready.");
         }
-        catch (NickAlreadyInUseException exception)
-        {
-            throw new HebdobotException(exception);
-        }
-        catch (IOException exception)
-        {
-            throw new HebdobotException(exception);
-        }
-        catch (IrcException exception)
-        {
-            throw new HebdobotException(exception);
-        }
-        catch (SchedulerException exception)
+        catch (SchedulerException | ParseException exception)
         {
             throw new HebdobotException("Error in cron settings.", exception);
         }
-        catch (ParseException exception)
+
+        // Manage "Caused by: java.net.UnknownHostException: irc.freenode.org".
+        boolean ended = false;
+        while (!ended)
         {
-            throw new HebdobotException(exception);
+            try
+            {
+                logger.info("Bot connection.");
+                this.connect(this.host, this.port);
+                logger.info("Bot connected.");
+                ended = true;
+            }
+            catch (NickAlreadyInUseException exception)
+            {
+                throw new HebdobotException(exception);
+            }
+            catch (IOException exception)
+            {
+                try
+                {
+                    Thread.sleep(60000);
+                }
+                catch (InterruptedException subException)
+                {
+                    subException.printStackTrace();
+                }
+            }
+            catch (IrcException exception)
+            {
+                throw new HebdobotException(exception);
+            }
         }
+
+        //
+        if (this.identifyPassword == null)
+        {
+            logger.info("Skipped identify.");
+        }
+        else
+        {
+            logger.info("Apply identify.");
+            sendMessage("NickServ", "identify " + this.identifyNick + " " + this.identifyPassword);
+            logger.info("Applied identify.");
+        }
+
+        logger.info("Bot joining channel ({}).", this.channel);
+        this.joinChannel(this.channel);
+        logger.info("Bot ready.");
     }
 
     /**