feat: fixwin限速支持设置窗口大小 (#791)

pkg/config/migrations/m008_ad_fixwin_config_migrate.py

@@ -0,0 +1,29 @@
+from __future__ import annotations
+
+from .. import migration
+
+
+@migration.migration_class("ad-fixwin-cfg-migration", 8)
+class AdFixwinConfigMigration(migration.Migration):
+    """迁移"""
+
+    async def need_migrate(self) -> bool:
+        """判断当前环境是否需要运行此迁移"""
+        return isinstance(
+            self.ap.pipeline_cfg.data["rate-limit"]["fixwin"]["default"],
+            int
+        )
+
+    async def run(self):
+        """执行迁移"""
+        
+        for session_name in self.ap.pipeline_cfg.data["rate-limit"]["fixwin"]:
+
+            temp_dict = {
+                "window-size": 60,
+                "limit": self.ap.pipeline_cfg.data["rate-limit"]["fixwin"][session_name]
+            }
+            
+            self.ap.pipeline_cfg.data["rate-limit"]["fixwin"][session_name] = temp_dict
+
+        await self.ap.pipeline_cfg.dump_config()

pkg/core/stages/migrate.py

@@ -5,7 +5,7 @@ import importlib
 from .. import stage, app
 from ...config import migration
 from ...config.migrations import m001_sensitive_word_migration, m002_openai_config_migration, m003_anthropic_requester_cfg_completion, m004_moonshot_cfg_completion
-from ...config.migrations import m005_deepseek_cfg_completion, m006_vision_config, m007_qcg_center_url
+from ...config.migrations import m005_deepseek_cfg_completion, m006_vision_config, m007_qcg_center_url, m008_ad_fixwin_config_migrate
 
 
 @stage.stage_class("MigrationStage")

pkg/pipeline/ratelimit/algos/fixedwin.py

@@ -1,18 +1,15 @@
-# 固定窗口算法
 from __future__ import annotations
-
 import asyncio
 import time
-
 from .. import algo
 
-
+# 固定窗口算法
 class SessionContainer:
     
     wait_lock: asyncio.Lock
 
     records: dict[int, int]
-    """访问记录，key为每分钟的起始时间戳，value为访问次数"""
+    """访问记录，key为每窗口长度的起始时间戳，value为访问次数"""
 
     def __init__(self):
         self.wait_lock = asyncio.Lock()
@@ -47,30 +44,34 @@ class FixedWindowAlgo(algo.ReteLimitAlgo):
 
         # 等待锁
         async with container.wait_lock:
+
+            # 获取窗口大小和限制
+            window_size = self.ap.pipeline_cfg.data['rate-limit']['fixwin']['default']['window-size']
+            limitation = self.ap.pipeline_cfg.data['rate-limit']['fixwin']['default']['limit']
+
+            if session_name in self.ap.pipeline_cfg.data['rate-limit']['fixwin']:
+                window_size = self.ap.pipeline_cfg.data['rate-limit']['fixwin'][session_name]['window-size']
+                limitation = self.ap.pipeline_cfg.data['rate-limit']['fixwin'][session_name]['limit']
+
             # 获取当前时间戳
             now = int(time.time())
 
-            # 获取当前分钟的起始时间戳
+            # 获取当前窗口的起始时间戳
-            now = now - now % 60
+            now = now - now % window_size
 
-            # 获取当前分钟的访问次数
+            # 获取当前窗口的访问次数
             count = container.records.get(now, 0)
 
-            limitation = self.ap.pipeline_cfg.data['rate-limit']['fixwin']['default']
-
-            if session_name in self.ap.pipeline_cfg.data['rate-limit']['fixwin']:
-                limitation = self.ap.pipeline_cfg.data['rate-limit']['fixwin'][session_name]
-
             # 如果访问次数超过了限制
             if count >= limitation:
                 if self.ap.pipeline_cfg.data['rate-limit']['strategy'] == 'drop':
                     return False
                 elif self.ap.pipeline_cfg.data['rate-limit']['strategy'] == 'wait':
-                    # 等待下一分钟
+                    # 等待下一窗口
-                    await asyncio.sleep(60 - time.time() % 60)
+                    await asyncio.sleep(window_size - time.time() % window_size)
     
                     now = int(time.time())
-                    now = now - now % 60
+                    now = now - now % window_size
             
             if now not in container.records:
                 container.records = {}

templates/pipeline.json

@@ -29,7 +29,10 @@
         "strategy": "drop",
         "algo": "fixwin",
         "fixwin": {
-            "default": 60
+            "default": {
+                "window-size": 60,
+                "limit": 60
+            }
         }
     }
 }