searxng · dalf · May 17, 2025 · May 17, 2025
diff --git a/requirements.txt b/requirements.txt
@@ -9,6 +9,7 @@ python-dateutil==2.9.0.post0
 pyyaml==6.0.2
 httpx[http2]==0.28.1
 httpx-socks[asyncio]==0.10.0
+httpx_curl_cffi==0.1.3 ; python_version >= "3.10" and (platform_machine == "aarch64" or platform_machine == "arm64"  or platform_machine == "x86_64")
 Brotli==1.1.0
 uvloop==0.21.0
 setproctitle==1.3.6

diff --git a/searx/engines/qwant.py b/searx/engines/qwant.py
@@ -148,6 +148,12 @@ def request(query, params):
         args['offset'] = (params['pageno'] - 1) * args['count']
 
     params['url'] = url + urlencode(args)
+    params['headers'] = {
+        "Accept": "application/json",
+        "Accept-Language": q_locale.replace("_", "-"),
+        "Referer": "https://www.qwant.com/",
+        "Origin": "https://www.qwant.com",
+    }
 
     return params
 

diff --git a/searx/network/client.py b/searx/network/client.py
@@ -11,8 +11,16 @@
 import httpx
 from httpx_socks import AsyncProxyTransport
 from python_socks import parse_proxy_url, ProxyConnectionError, ProxyTimeoutError, ProxyError
+
 import uvloop
 
+try:
+    from httpx_curl_cffi import AsyncCurlTransport, CurlOpt, CurlHttpVersion
+except ImportError:
+    AsyncCurlTransport = None
+    CurlOpt = None
+    CurlHttpVersion = None
+
 from searx import logger
 
 
@@ -152,6 +160,7 @@ def get_transport(verify, http2, local_address, proxy_url, limit, retries):
 
 def new_client(
     # pylint: disable=too-many-arguments
+    impersonate,
     enable_http,
     verify,
     enable_http2,
@@ -169,12 +178,27 @@ def new_client(
         max_keepalive_connections=max_keepalive_connections,
         keepalive_expiry=keepalive_expiry,
     )
+    if impersonate and (AsyncCurlTransport is None or CurlOpt is None):
+        raise ValueError("impersonate requires the AMD64 or ARM64 architecture")
+
     # See https://www.python-httpx.org/advanced/#routing
     mounts = {}
     for pattern, proxy_url in proxies.items():
         if not enable_http and pattern.startswith('http://'):
             continue
-        if proxy_url.startswith('socks4://') or proxy_url.startswith('socks5://') or proxy_url.startswith('socks5h://'):
+        if impersonate and AsyncCurlTransport is not None and CurlOpt is not None and CurlHttpVersion is not None:
+            mounts[pattern] = AsyncCurlTransport(
+                impersonate=impersonate,
+                default_headers=True,
+                # required for parallel requests, see curl_cffi issues below
+                curl_options={CurlOpt.FRESH_CONNECT: True},
+                http_version=CurlHttpVersion.V3 if enable_http2 else CurlHttpVersion.V1_1,
+                proxy=proxy_url,
+                local_address=local_address,
+            )
+        elif (
+            proxy_url.startswith('socks4://') or proxy_url.startswith('socks5://') or proxy_url.startswith('socks5h://')
+        ):
             mounts[pattern] = get_transport_for_socks_proxy(
                 verify, enable_http2, local_address, proxy_url, limit, retries
             )
@@ -184,7 +208,17 @@ def new_client(
     if not enable_http:
         mounts['http://'] = AsyncHTTPTransportNoHttp()
 
-    transport = get_transport(verify, enable_http2, local_address, None, limit, retries)
+    if impersonate and AsyncCurlTransport is not None and CurlOpt is not None and CurlHttpVersion is not None:
+        transport = AsyncCurlTransport(
+            impersonate=impersonate,
+            default_headers=True,
+            # required for parallel requests, see curl_cffi issues below
+            curl_options={CurlOpt.FRESH_CONNECT: True},
+            http_version=CurlHttpVersion.V3 if enable_http2 else CurlHttpVersion.V1_1,
+            local_address=local_address,
+        )
+    else:
+        transport = get_transport(verify, enable_http2, local_address, None, limit, retries)
 
     event_hooks = None
     if hook_log_response:

diff --git a/searx/network/network.py b/searx/network/network.py
@@ -53,6 +53,7 @@ class Network:
         'max_redirects',
         'retries',
         'retry_on_http_error',
+        'impersonate',
         '_local_addresses_cycle',
         '_proxies_cycle',
         '_clients',
@@ -63,6 +64,7 @@ class Network:
 
     def __init__(
         # pylint: disable=too-many-arguments
+        # pylint: disable=too-many-positional-arguments
         self,
         enable_http=True,
         verify=True,
@@ -77,6 +79,7 @@ def __init__(
         retry_on_http_error=None,
         max_redirects=30,
         logger_name=None,
+        impersonate=None,
     ):
 
         self.enable_http = enable_http
@@ -91,6 +94,7 @@ def __init__(
         self.retries = retries
         self.retry_on_http_error = retry_on_http_error
         self.max_redirects = max_redirects
+        self.impersonate = impersonate
         self._local_addresses_cycle = self.get_ipaddress_cycle()
         self._proxies_cycle = self.get_proxy_cycles()
         self._clients = {}
@@ -185,10 +189,11 @@ async def get_client(self, verify=None, max_redirects=None):
         max_redirects = self.max_redirects if max_redirects is None else max_redirects
         local_address = next(self._local_addresses_cycle)
         proxies = next(self._proxies_cycle)  # is a tuple so it can be part of the key
-        key = (verify, max_redirects, local_address, proxies)
+        key = (verify, max_redirects, local_address, proxies, self.impersonate)
         hook_log_response = self.log_response if sxng_debug else None
         if key not in self._clients or self._clients[key].is_closed:
             client = new_client(
+                self.impersonate,
                 self.enable_http,
                 verify,
                 self.enable_http2,

diff --git a/searx/settings.yml b/searx/settings.yml
@@ -1711,6 +1711,8 @@ engines:
     disabled: true
     additional_tests:
       rosebud: *test_rosebud
+    network:
+      impersonate: chrome
 
   - name: qwant news
     qwant_categ: news