Keep PR 900 overrides bounded and opt-in

The PR adds API limit overrides and static proxy support, but the review found that the default proxy provider changed to an invalid static placeholder and the new API fields accepted unbounded values. This keeps the existing proxy default intact, makes static proxy explicit via config or CLI, validates API limit ranges, and adds focused regression coverage for both paths.

Constraint: PR branch must remain contributor-branch compatible and avoid adding dependencies

Rejected: Keep static as the default provider | breaks existing --enable_ip_proxy defaults with an invalid placeholder URL

Rejected: Accept arbitrary integer limits | lets API callers request negative or excessive crawl sizes

Confidence: high

Scope-risk: narrow

Directive: Do not change proxy provider defaults when adding new providers; new providers should be opt-in and covered by provider-specific tests

Tested: uv run pytest tests/test_api_limits.py tests/test_static_proxy_provider.py

Tested: uv run pytest tests

Tested: uv run pytest test/test_utils.py

Tested: uv run python -m compileall api cmd_arg config proxy tests

Tested: git diff --cached --check

Not-tested: Live crawler run against external platforms or real proxy vendor endpoints

api/schemas/crawler.py

@@ -18,7 +18,10 @@
 
 from enum import Enum
 from typing import Optional, Literal
-from pydantic import BaseModel
+from pydantic import BaseModel, Field
+
+
+MAX_API_LIMIT_COUNT = 10000
 
 
 class PlatformEnum(str, Enum):
@@ -71,8 +74,8 @@ class CrawlerStartRequest(BaseModel):
     save_option: SaveDataOptionEnum = SaveDataOptionEnum.JSONL
     cookies: str = ""
     headless: bool = False
-    max_notes_count: Optional[int] = None
+    max_notes_count: Optional[int] = Field(default=None, ge=1, le=MAX_API_LIMIT_COUNT)
-    max_comments_count: Optional[int] = None
+    max_comments_count: Optional[int] = Field(default=None, ge=1, le=MAX_API_LIMIT_COUNT)
 
 
 class CrawlerStatusResponse(BaseModel):

cmd_arg/arg.py

@@ -320,10 +320,18 @@ async def parse_cmd(argv: Optional[Sequence[str]] = None):
             str,
             typer.Option(
                 "--ip_proxy_provider_name",
-                help="IP proxy provider name (kuaidaili | wandouhttp)",
+                help="IP proxy provider name (kuaidaili | wandouhttp | static)",
                 rich_help_panel="Proxy Configuration",
             ),
         ] = config.IP_PROXY_PROVIDER_NAME,
+        static_proxy_url: Annotated[
+            str,
+            typer.Option(
+                "--static_proxy_url",
+                help="Static proxy URL, for example http://user:password@host:port",
+                rich_help_panel="Proxy Configuration",
+            ),
+        ] = config.STATIC_PROXY_URL,
     ) -> SimpleNamespace:
         """MediaCrawler 命令行入口"""
 
@@ -356,6 +364,7 @@ async def parse_cmd(argv: Optional[Sequence[str]] = None):
         config.ENABLE_IP_PROXY = enable_ip_proxy_value
         config.IP_PROXY_POOL_COUNT = ip_proxy_pool_count
         config.IP_PROXY_PROVIDER_NAME = ip_proxy_provider_name
+        config.STATIC_PROXY_URL = static_proxy_url
 
         # Set platform-specific ID lists for detail/creator mode
         if specified_id_list:

config/base_config.py

@@ -34,14 +34,14 @@ CRAWLER_TYPE = (
 ENABLE_IP_PROXY = False
 
 # Number of proxy IP pools
-IP_PROXY_POOL_COUNT = 1
+IP_PROXY_POOL_COUNT = 2
 
 # Proxy IP provider name
-IP_PROXY_PROVIDER_NAME = "static"  # kuaidaili | wandouhttp | static
+IP_PROXY_PROVIDER_NAME = "kuaidaili"  # kuaidaili | wandouhttp | static
 
 # Static proxy configuration (used when IP_PROXY_PROVIDER_NAME is set to "static")
 # Format: "http://your_home_domain:port" or "http://user:password@your_home_domain:port"
-STATIC_PROXY_URL = "http://your_home_domain:port"
+STATIC_PROXY_URL = ""
 
 # Setting to True will not open the browser (headless browser)
 # Setting False will open a browser

proxy/proxy_ip_pool.py

@@ -22,7 +22,9 @@
 # @Time    : 2023/12/2 13:45
 # @Desc    : IP proxy pool implementation
 import random
+import time
 from typing import Dict, List
+from urllib.parse import unquote, urlparse
 
 import httpx
 from tenacity import retry, stop_after_attempt, wait_fixed
@@ -152,9 +154,6 @@ class ProxyIpPool:
 
 class StaticProxyProvider(ProxyProvider):
     async def get_proxy(self, num: int) -> List[IpInfoModel]:
-        from urllib.parse import urlparse
-        import time
-        
         proxy_url = getattr(config, "STATIC_PROXY_URL", "")
         if not proxy_url:
             utils.logger.warning("[StaticProxyProvider] STATIC_PROXY_URL is not configured!")
@@ -162,23 +161,26 @@ class StaticProxyProvider(ProxyProvider):
 
         try:
             parsed = urlparse(proxy_url)
-            ip = parsed.hostname or ""
+            scheme = parsed.scheme or "http"
-            port = parsed.port or 80
+            if scheme not in {"http", "https"}:
-            user = parsed.username or ""
+                utils.logger.error(f"[StaticProxyProvider] Unsupported proxy scheme: {scheme}")
-            password = parsed.password or ""
+                return []
-            protocol = parsed.scheme + "://" if parsed.scheme else "http://"
 
-            # Static proxy doesn't expire
+            ip = parsed.hostname or ""
-            expired_time_ts = int(time.time()) + 99999999
+            port = parsed.port or (443 if scheme == "https" else 80)
+            if not ip:
+                utils.logger.error("[StaticProxyProvider] STATIC_PROXY_URL host is empty!")
+                return []
 
             return [
                 IpInfoModel(
                     ip=ip,
                     port=port,
-                    user=user,
+                    user=unquote(parsed.username or ""),
-                    password=password,
+                    password=unquote(parsed.password or ""),
-                    protocol=protocol,
+                    protocol=f"{scheme}://",
-                    expired_time_ts=expired_time_ts
+                    # Static proxy doesn't expire.
+                    expired_time_ts=int(time.time()) + 99999999,
                 )
             ]
         except Exception as e:
@@ -189,7 +191,7 @@ class StaticProxyProvider(ProxyProvider):
 IpProxyProvider: Dict[str, ProxyProvider] = {
     ProviderNameEnum.KUAI_DAILI_PROVIDER.value: new_kuai_daili_proxy(),
     ProviderNameEnum.WANDOU_HTTP_PROVIDER.value: new_wandou_http_proxy(),
-    "static": StaticProxyProvider(),
+    ProviderNameEnum.STATIC_PROVIDER.value: StaticProxyProvider(),
 }
 
 
@@ -200,7 +202,7 @@ async def create_ip_pool(ip_pool_count: int, enable_validate_ip: bool) -> ProxyI
     :param enable_validate_ip: Whether to enable IP proxy validation
     :return:
     """
-    is_static = config.IP_PROXY_PROVIDER_NAME == "static"
+    is_static = config.IP_PROXY_PROVIDER_NAME == ProviderNameEnum.STATIC_PROVIDER.value
     pool = ProxyIpPool(
         ip_pool_count=ip_pool_count,
         enable_validate_ip=False if is_static else enable_validate_ip,

proxy/types.py

@@ -32,6 +32,7 @@ from pydantic import BaseModel, Field
 class ProviderNameEnum(Enum):
     KUAI_DAILI_PROVIDER: str = "kuaidaili"
     WANDOU_HTTP_PROVIDER: str = "wandouhttp"
+    STATIC_PROVIDER: str = "static"
 
 
 class IpInfoModel(BaseModel):

tests/test_api_limits.py

@@ -107,3 +107,31 @@ def test_api_start_crawler_without_limits():
         assert called_request.platform == PlatformEnum.XHS
         assert called_request.max_notes_count is None
         assert called_request.max_comments_count is None
+
+
+@pytest.mark.parametrize(
+    ("field_name", "value"),
+    [
+        ("max_notes_count", 0),
+        ("max_notes_count", -1),
+        ("max_notes_count", 10001),
+        ("max_comments_count", 0),
+        ("max_comments_count", -1),
+        ("max_comments_count", 10001),
+    ],
+)
+def test_api_rejects_invalid_limits(field_name, value):
+    client = TestClient(app)
+    payload = {
+        "platform": "xhs",
+        "login_type": "qrcode",
+        "crawler_type": "search",
+        "keywords": "test",
+        field_name: value,
+    }
+
+    with patch("api.routers.crawler.crawler_manager.start", new_callable=AsyncMock) as mock_start:
+        response = client.post("/api/crawler/start", json=payload)
+
+    assert response.status_code == 422
+    mock_start.assert_not_called()

tests/test_static_proxy_provider.py

@@ -0,0 +1,49 @@
+# -*- coding: utf-8 -*-
+import pytest
+
+import config
+from proxy.proxy_ip_pool import StaticProxyProvider, create_ip_pool
+from proxy.types import ProviderNameEnum
+
+
+def test_default_proxy_provider_remains_existing_provider():
+    assert config.IP_PROXY_PROVIDER_NAME == ProviderNameEnum.KUAI_DAILI_PROVIDER.value
+    assert config.IP_PROXY_POOL_COUNT == 2
+    assert config.STATIC_PROXY_URL == ""
+
+
+@pytest.mark.asyncio
+async def test_static_proxy_provider_parses_proxy_url(monkeypatch):
+    monkeypatch.setattr(config, "STATIC_PROXY_URL", "http://user:p%40ss@example.com:8080")
+
+    proxies = await StaticProxyProvider().get_proxy(1)
+
+    assert len(proxies) == 1
+    proxy = proxies[0]
+    assert proxy.ip == "example.com"
+    assert proxy.port == 8080
+    assert proxy.user == "user"
+    assert proxy.password == "p@ss"
+    assert proxy.protocol == "http://"
+    assert proxy.expired_time_ts is not None
+
+
+@pytest.mark.asyncio
+async def test_static_proxy_provider_rejects_invalid_url(monkeypatch):
+    monkeypatch.setattr(config, "STATIC_PROXY_URL", "http://your_home_domain:port")
+
+    proxies = await StaticProxyProvider().get_proxy(1)
+
+    assert proxies == []
+
+
+@pytest.mark.asyncio
+async def test_static_proxy_pool_disables_validation(monkeypatch):
+    monkeypatch.setattr(config, "IP_PROXY_PROVIDER_NAME", ProviderNameEnum.STATIC_PROVIDER.value)
+    monkeypatch.setattr(config, "STATIC_PROXY_URL", "https://example.com:8443")
+
+    pool = await create_ip_pool(ip_pool_count=2, enable_validate_ip=True)
+
+    assert pool.enable_validate_ip is False
+    assert len(pool.proxy_list) == 1
+    assert pool.proxy_list[0].protocol == "https://"