feat: universal chat in explore (#649)

Co-authored-by: StyleZhang <jasonapring2015@outlook.com>

api/core/tool/provider/serpapi_provider.py

@@ -0,0 +1,77 @@
+from typing import Optional
+
+from core.tool.provider.base import BaseToolProvider
+from core.tool.provider.errors import ToolValidateFailedError
+from core.tool.serpapi_wrapper import OptimizedSerpAPIWrapper
+from models.tool import ToolProviderName
+
+
+class SerpAPIToolProvider(BaseToolProvider):
+    def get_provider_name(self) -> ToolProviderName:
+        """
+        Returns the name of the provider.
+
+        :return:
+        """
+        return ToolProviderName.SERPAPI
+
+    def get_credentials(self, obfuscated: bool = False) -> Optional[dict]:
+        """
+        Returns the credentials for SerpAPI as a dictionary.
+
+        :param obfuscated: obfuscate credentials if True
+        :return:
+        """
+        tool_provider = self.get_provider(must_enabled=True)
+        if not tool_provider:
+            return None
+
+        credentials = tool_provider.credentials
+        if not credentials:
+            return None
+
+        if credentials.get('api_key'):
+            credentials['api_key'] = self.decrypt_token(credentials.get('api_key'), obfuscated)
+
+        return credentials
+
+    def credentials_to_func_kwargs(self) -> Optional[dict]:
+        """
+        Returns the credentials function kwargs as a dictionary.
+
+        :return:
+        """
+        credentials = self.get_credentials()
+        if not credentials:
+            return None
+
+        return {
+            'serpapi_api_key': credentials.get('api_key')
+        }
+
+    def credentials_validate(self, credentials: dict):
+        """
+        Validates the given credentials.
+
+        :param credentials:
+        :return:
+        """
+        if 'api_key' not in credentials or not credentials.get('api_key'):
+            raise ToolValidateFailedError("SerpAPI api_key is required.")
+
+        api_key = credentials.get('api_key')
+
+        try:
+            OptimizedSerpAPIWrapper(serpapi_api_key=api_key).run(query='test')
+        except Exception as e:
+            raise ToolValidateFailedError("SerpAPI api_key is invalid. {}".format(e))
+
+    def encrypt_credentials(self, credentials: dict) -> Optional[dict]:
+        """
+        Encrypts the given credentials.
+
+        :param credentials:
+        :return:
+        """
+        credentials['api_key'] = self.encrypt_token(credentials.get('api_key'))
+        return credentials