From 154782660cabb5ae8d313e6348efe747bb5e9d16 Mon Sep 17 00:00:00 2001
From: cyberslack_lee <jeffrey0122@163.com>
Date: Thu, 9 Jul 2026 14:41:33 +0800
Subject: [PATCH] fix: fix rand.init(0) panic in failover.go (#4112)

---
 plugins/wasm-go/extensions/ai-proxy/provider/failover.go | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/plugins/wasm-go/extensions/ai-proxy/provider/failover.go b/plugins/wasm-go/extensions/ai-proxy/provider/failover.go
index fa3076f31..d80ca9b5b 100644
--- a/plugins/wasm-go/extensions/ai-proxy/provider/failover.go
+++ b/plugins/wasm-go/extensions/ai-proxy/provider/failover.go
@@ -649,6 +649,10 @@ func (c *ProviderConfig) GetGlobalRandomToken() string {
 	count := len(apiTokens)
 	switch count {
 	case 0:
+		if len(unavailableApiTokens) == 0 {
+			log.Warn("all tokens are unavailable and no unavailable tokens recorded")
+			return ""
+		}
 		log.Warn("all tokens are unavailable, will use random one of the unavailable tokens")
 		return unavailableApiTokens[rand.Intn(len(unavailableApiTokens))]
 	case 1: