更新

server/app/common/service/DifyChatService.php

@@ -726,6 +726,21 @@ class DifyChatService
         ];
     }
 
+    /**
+     * libcurl 7.32+ exposes CURLOPT_XFERINFOFUNCTION, while CentOS/RHEL 7 commonly
+     * ships libcurl 7.29 with only CURLOPT_PROGRESSFUNCTION. Resolve the option
+     * by name so loading this class never evaluates an undefined PHP constant.
+     */
+    private static function curlProgressOption(): ?int
+    {
+        foreach (['CURLOPT_XFERINFOFUNCTION', 'CURLOPT_PROGRESSFUNCTION'] as $name) {
+            if (defined($name)) {
+                return (int) constant($name);
+            }
+        }
+        return null;
+    }
+
     /**
      * @param array<string,mixed> $payload
      * @param callable(string):mixed $onDelta
@@ -783,7 +798,7 @@ class DifyChatService
             self::consumeStreamBytes($protocol, $buffer, $chunk, $state, $onDelta);
             return $state['callback_error'] ? 0 : strlen($chunk);
         };
-        $progress = static function () use (&$state, $shouldAbort): int {
+        $progress = static function (...$unused) use (&$state, $shouldAbort): int {
             if ($shouldAbort !== null && $shouldAbort()) {
                 $state['client_aborted'] = true;
                 return 1;
@@ -791,7 +806,7 @@ class DifyChatService
             return 0;
         };
 
-        curl_setopt_array($ch, [
+        $curlOptions = [
             CURLOPT_URL => $url,
             CURLOPT_POST => true,
             CURLOPT_POSTFIELDS => $body,
@@ -807,9 +822,13 @@ class DifyChatService
             ],
             CURLOPT_HEADERFUNCTION => $header,
             CURLOPT_WRITEFUNCTION => $write,
-            CURLOPT_NOPROGRESS => false,
-            CURLOPT_XFERINFOFUNCTION => $progress,
-        ]);
+        ];
+        $progressOption = self::curlProgressOption();
+        if ($progressOption !== null) {
+            $curlOptions[CURLOPT_NOPROGRESS] = false;
+            $curlOptions[$progressOption] = $progress;
+        }
+        curl_setopt_array($ch, $curlOptions);
 
         curl_exec($ch);
         $errno = curl_errno($ch);