refactor: move DuckDuckGo/Free2GPT to deprecated; SearXNG updates

- g4f/Provider/ApiAirforce.py: replace class attr parent="Api.Airforce" with label="Api.Airforce"
- g4f/Provider/EasyChat.py: add guard after loop to raise ValueError("Failed to retrieve arguments for EasyChat.") when args is falsy
- g4f/Provider/SearXNG.py:
  - add imports: from .helper import format_media_prompt; from .. import debug
  - rename class attr default_url to url (SEARXNG_URL) and use cls.url in requests
  - create(): add parameters prompt: str = None and language: str = "it"
  - build prompt via format_media_prompt(messages, prompt); remove previous query extraction
  - request params: set q to prompt and language to provided language
  - pass proxy to session.get(...); replace print(...) with debug.log(...)
  - on empty results, return early (remove "Nessun risultato trovato." and FinishReason("stop") yields)
  - result formatting: use r.get("title") without default fallback
- g4f/Provider/__init__.py: import DuckDuckGo and Free2GPT from .deprecated.DuckDuckGo and .deprecated.Free2GPT
- g4f/Provider/deprecated/DuckDuckGo.py: update relative imports to ...typing, ..base_provider, ..helper
- g4f/Provider/deprecated/Free2GPT.py: update relative imports to ...errors, ...requests, ...typing, ..base_provider
- g4f/Provider/needs_auth/DeepSeekAPI.py: set working = False (was has_dsk)
- g4f/Provider/needs_auth/You.py: set working = False (was True); update headers["Referer"] to f"{cls.url}/api/streamingSearch"

g4f/Provider/ApiAirforce.py

@@ -4,7 +4,7 @@ from .template import OpenaiTemplate
 from ..config import DEFAULT_MODEL
 
 class ApiAirforce(OpenaiTemplate):
-    parent = "Api.Airforce"
+    label = "Api.Airforce"
     url = "https://api.airforce"
     login_url = "https://panel.api.airforce/dashboard"
     api_base = "https://api.airforce/v1"

g4f/Provider/EasyChat.py

@@ -145,6 +145,8 @@ class EasyChat(OpenaiTemplate, AuthFileMixin):
                     continue
                 raise e
             break
+        if not args:
+            raise ValueError("Failed to retrieve arguments for EasyChat.")
         if os.getenv("G4F_SHARE_AUTH"):
             yield "\n" * 10
             yield "<!--"

g4f/Provider/SearXNG.py

@@ -5,9 +5,11 @@ from ..typing import Messages, AsyncResult
 from ..providers.base_provider import AsyncGeneratorProvider
 from ..providers.response import FinishReason
 from ..tools.web_search import fetch_and_scrape 
+from .helper import format_media_prompt
+from .. import debug
 
 class SearXNG(AsyncGeneratorProvider):
-    default_url = os.environ.get("SEARXNG_URL", "http://searxng:8080")
+    url = os.environ.get("SEARXNG_URL", "http://searxng:8080")
     label = "SearXNG"
   
     @classmethod
@@ -15,34 +17,30 @@ class SearXNG(AsyncGeneratorProvider):
         cls,
         model: str,
         messages: Messages,
+        prompt: str = None,
         proxy: str = None,
         timeout: int = 30,
+        language: str = "it",
         max_results: int = 5,
         max_words: int = 2500,
         add_text: bool = True,
         **kwargs
     ) -> AsyncResult:
-        url = cls.default_url
-        query = messages[-1]["content"] if isinstance(messages[-1], dict) else getattr(messages[-1], "content", "")
-
+        prompt = format_media_prompt(messages, prompt)
 
         async with aiohttp.ClientSession(timeout=aiohttp.ClientTimeout(total=timeout)) as session:
             params = {
-                "q": query,
+                "q": prompt,
                 "format": "json",
-                "language": "it",
+                "language": language,
                 "safesearch": 0,
                 "categories": "general",
             }
-
-            async with session.get(f"{url}/search", params=params) as resp:
-                print(f"Request URL on SearXNG: {resp.url}")
+            async with session.get(f"{cls.url}/search", params=params, proxy=proxy) as resp:
+                debug.log(f"Request URL on SearXNG: {resp.url}")
                 data = await resp.json()
                 results = data.get("results", [])
-
                 if not results:
-                    yield "Nessun risultato trovato."
-                    yield FinishReason("stop")
                     return
 
                 if add_text:
@@ -56,7 +54,7 @@ class SearXNG(AsyncGeneratorProvider):
                 formatted = ""
                 used_words = 0
                 for i, r in enumerate(results[:max_results]):
-                    title = r.get("title", "Senza titolo")
+                    title = r.get("title")
                     url = r.get("url", "#")
                     content = r.get("text") or r.get("snippet") or ""
                     formatted += f"Title: {title}\n\n{content}\n\nSource: [[{i}]]({url})\n\n"

g4f/Provider/__init__.py

@@ -32,16 +32,17 @@ try:
 except ImportError as e:
     debug.error("Audio providers not loaded:", e)
 
-from .deprecated.ARTA      import ARTA
+from .deprecated.ARTA import ARTA
+from .deprecated.DuckDuckGo import DuckDuckGo
+from .deprecated.Free2GPT import Free2GPT
+
 from .ApiAirforce          import ApiAirforce
 from .Blackbox             import Blackbox
 from .Chatai               import Chatai
 from .Cloudflare           import Cloudflare
 from .Copilot              import Copilot
 from .DeepInfraChat        import DeepInfraChat
-from .DuckDuckGo           import DuckDuckGo
 from .EasyChat             import EasyChat
-from .Free2GPT             import Free2GPT
 from .GLM                  import GLM
 from .GptOss               import GptOss
 from .ImageLabs            import ImageLabs

g4f/Provider/deprecated/DuckDuckGo.py

@@ -8,9 +8,9 @@ try:
 except ImportError:
     has_requirements = False
 
-from ..typing import CreateResult, Messages
-from .base_provider import AbstractProvider, ProviderModelMixin
-from .helper import get_last_user_message
+from ...typing import CreateResult, Messages
+from ..base_provider import AbstractProvider, ProviderModelMixin
+from ..helper import get_last_user_message
 
 class DuckDuckGo(AbstractProvider, ProviderModelMixin):
     label = "Duck.ai (duckduckgo_search)"

g4f/Provider/deprecated/Free2GPT.py

@@ -5,11 +5,11 @@ from hashlib import sha256
 
 from aiohttp import BaseConnector, ClientSession
 
-from ..errors import RateLimitError
-from ..requests import raise_for_status
-from ..requests.aiohttp import get_connector
-from ..typing import AsyncResult, Messages
-from .base_provider import AsyncGeneratorProvider, ProviderModelMixin
+from ...errors import RateLimitError
+from ...requests import raise_for_status
+from ...requests.aiohttp import get_connector
+from ...typing import AsyncResult, Messages
+from ..base_provider import AsyncGeneratorProvider, ProviderModelMixin
 
 
 class Free2GPT(AsyncGeneratorProvider, ProviderModelMixin):

g4f/Provider/needs_auth/DeepSeekAPI.py

@@ -20,7 +20,7 @@ except ImportError:
 class DeepSeekAPI(AsyncAuthedProvider, ProviderModelMixin):
     label = "DeepSeek"
     url = "https://chat.deepseek.com"
-    working = has_dsk
+    working = False
     active_by_default = False
     needs_auth = True
     use_nodriver = True

g4f/Provider/needs_auth/You.py

@@ -17,7 +17,7 @@ from ... import debug
 class You(AsyncGeneratorProvider, ProviderModelMixin):
     label = "You.com"
     url = "https://you.com"
-    working = True
+    working = False
     needs_auth = True
     default_model = "gpt-4o-mini"
     default_vision_model = "agent"
@@ -103,7 +103,7 @@ class You(AsyncGeneratorProvider, ProviderModelMixin):
                 upload = json.dumps([upload_file])
             headers = {
                 "Accept": "text/event-stream",
-                "Referer": f"{cls.url}/search?fromSearchBar=true&tbm=youchat",
+                "Referer": f"{cls.url}/api/streamingSearch",
             }
             data = {
                 "userFiles": upload,