dify/api/models/tool.py

import json
from enum import Enum

from extensions.ext_database import db

from .types import StringUUID


class ToolProviderName(Enum):
    SERPAPI = "serpapi"

    @staticmethod
    def value_of(value):
        for member in ToolProviderName:
            if member.value == value:
                return member
        raise ValueError(f"No matching enum found for value '{value}'")


class ToolProvider(db.Model):
    __tablename__ = "tool_providers"
    __table_args__ = (
        db.PrimaryKeyConstraint("id", name="tool_provider_pkey"),
        db.UniqueConstraint("tenant_id", "tool_name", name="unique_tool_provider_tool_name"),
    )

    id = db.Column(StringUUID, server_default=db.text("uuid_generate_v4()"))
    tenant_id = db.Column(StringUUID, nullable=False)
    tool_name = db.Column(db.String(40), nullable=False)
    encrypted_credentials = db.Column(db.Text, nullable=True)
    is_enabled = db.Column(db.Boolean, nullable=False, server_default=db.text("false"))
    created_at = db.Column(db.DateTime, nullable=False, server_default=db.text("CURRENT_TIMESTAMP(0)"))
    updated_at = db.Column(db.DateTime, nullable=False, server_default=db.text("CURRENT_TIMESTAMP(0)"))

    @property
    def credentials_is_set(self):
        """
        Returns True if the encrypted_config is not None, indicating that the token is set.
        """
        return self.encrypted_credentials is not None

    @property
    def credentials(self):
        """
        Returns the decrypted config.
        """
        return json.loads(self.encrypted_credentials) if self.encrypted_credentials is not None else None