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import json
import logging
from datetime import datetime, timezone
from typing import cast
from flask_login import current_user
from flask_sqlalchemy.pagination import Pagination
from configs import dify_config
from constants.model_template import default_app_templates
from core.agent.entities import AgentToolEntity
from core.app.features.rate_limiting import RateLimit
from core.errors.error import LLMBadRequestError, ProviderTokenNotInitError
from core.model_manager import ModelManager
from core.model_runtime.entities.model_entities import ModelPropertyKey, ModelType
from core.model_runtime.model_providers.__base.large_language_model import LargeLanguageModel
from core.tools.tool_manager import ToolManager
from core.tools.utils.configuration import ToolParameterConfigurationManager
from events.app_event import app_was_created
from extensions.ext_database import db
from models.account import Account
from models.model import App, AppMode, AppModelConfig
from models.tools import ApiToolProvider
from services.tag_service import TagService
from tasks.remove_app_and_related_data_task import remove_app_and_related_data_task
class AppService:
def get_paginate_apps(self, tenant_id: str, args: dict) -> Pagination | None:
"""
Get app list with pagination
:param tenant_id: tenant id
:param args: request args
:return:
"""
filters = [
App.tenant_id == tenant_id,
App.is_universal == False
]
if args['mode'] == 'workflow':
filters.append(App.mode.in_([AppMode.WORKFLOW.value, AppMode.COMPLETION.value]))
elif args['mode'] == 'chat':
filters.append(App.mode.in_([AppMode.CHAT.value, AppMode.ADVANCED_CHAT.value]))
elif args['mode'] == 'agent-chat':
filters.append(App.mode == AppMode.AGENT_CHAT.value)
elif args['mode'] == 'channel':
filters.append(App.mode == AppMode.CHANNEL.value)
if args.get('name'):
name = args['name'][:30]
filters.append(App.name.ilike(f'%{name}%'))
if args.get('tag_ids'):
target_ids = TagService.get_target_ids_by_tag_ids('app',
tenant_id,
args['tag_ids'])
if target_ids:
filters.append(App.id.in_(target_ids))
else:
return None
app_models = db.paginate(
db.select(App).where(*filters).order_by(App.created_at.desc()),
page=args['page'],
per_page=args['limit'],
error_out=False
)
return app_models
def create_app(self, tenant_id: str, args: dict, account: Account) -> App:
"""
Create app
:param tenant_id: tenant id
:param args: request args
:param account: Account instance
"""
app_mode = AppMode.value_of(args['mode'])
app_template = default_app_templates[app_mode]
# get model config
default_model_config = app_template.get('model_config')
default_model_config = default_model_config.copy() if default_model_config else None
if default_model_config and 'model' in default_model_config:
# get model provider
model_manager = ModelManager()
# get default model instance
try:
model_instance = model_manager.get_default_model_instance(
tenant_id=account.current_tenant_id,
model_type=ModelType.LLM
)
except (ProviderTokenNotInitError, LLMBadRequestError):
model_instance = None
except Exception as e:
logging.exception(e)
model_instance = None
if model_instance:
if model_instance.model == default_model_config['model']['name'] and model_instance.provider == default_model_config['model']['provider']:
default_model_dict = default_model_config['model']
else:
llm_model = cast(LargeLanguageModel, model_instance.model_type_instance)
model_schema = llm_model.get_model_schema(model_instance.model, model_instance.credentials)
default_model_dict = {
'provider': model_instance.provider,
'name': model_instance.model,
'mode': model_schema.model_properties.get(ModelPropertyKey.MODE),
'completion_params': {}
}
else:
default_model_dict = default_model_config['model']
default_model_config['model'] = json.dumps(default_model_dict)
app = App(**app_template['app'])
app.name = args['name']
app.description = args.get('description', '')
app.mode = args['mode']
app.icon = args['icon']
app.icon_background = args['icon_background']
app.tenant_id = tenant_id
app.api_rph = args.get('api_rph', 0)
app.api_rpm = args.get('api_rpm', 0)
db.session.add(app)
db.session.flush()
if default_model_config:
app_model_config = AppModelConfig(**default_model_config)
app_model_config.app_id = app.id
db.session.add(app_model_config)
db.session.flush()
app.app_model_config_id = app_model_config.id
db.session.commit()
app_was_created.send(app, account=account)
return app
def get_app(self, app: App) -> App:
"""
Get App
"""
# get original app model config
if app.mode == AppMode.AGENT_CHAT.value or app.is_agent:
model_config: AppModelConfig = app.app_model_config
agent_mode = model_config.agent_mode_dict
# decrypt agent tool parameters if it's secret-input
for tool in agent_mode.get('tools') or []:
if not isinstance(tool, dict) or len(tool.keys()) <= 3:
continue
agent_tool_entity = AgentToolEntity(**tool)
# get tool
try:
tool_runtime = ToolManager.get_agent_tool_runtime(
tenant_id=current_user.current_tenant_id,
app_id=app.id,
agent_tool=agent_tool_entity,
)
manager = ToolParameterConfigurationManager(
tenant_id=current_user.current_tenant_id,
tool_runtime=tool_runtime,
provider_name=agent_tool_entity.provider_id,
provider_type=agent_tool_entity.provider_type,
identity_id=f'AGENT.{app.id}'
)
# get decrypted parameters
if agent_tool_entity.tool_parameters:
parameters = manager.decrypt_tool_parameters(agent_tool_entity.tool_parameters or {})
masked_parameter = manager.mask_tool_parameters(parameters or {})
else:
masked_parameter = {}
# override tool parameters
tool['tool_parameters'] = masked_parameter
except Exception as e:
pass
# override agent mode
model_config.agent_mode = json.dumps(agent_mode)
class ModifiedApp(App):
"""
Modified App class
"""
def __init__(self, app):
self.__dict__.update(app.__dict__)
@property
def app_model_config(self):
return model_config
app = ModifiedApp(app)
return app
def update_app(self, app: App, args: dict) -> App:
"""
Update app
:param app: App instance
:param args: request args
:return: App instance
"""
app.name = args.get('name')
app.description = args.get('description', '')
app.max_active_requests = args.get('max_active_requests')
app.icon = args.get('icon')
app.icon_background = args.get('icon_background')
app.updated_at = datetime.now(timezone.utc).replace(tzinfo=None)
db.session.commit()
if app.max_active_requests is not None:
rate_limit = RateLimit(app.id, app.max_active_requests)
rate_limit.flush_cache(use_local_value=True)
return app
def update_app_name(self, app: App, name: str) -> App:
"""
Update app name
:param app: App instance
:param name: new name
:return: App instance
"""
app.name = name
app.updated_at = datetime.now(timezone.utc).replace(tzinfo=None)
db.session.commit()
return app
def update_app_icon(self, app: App, icon: str, icon_background: str) -> App:
"""
Update app icon
:param app: App instance
:param icon: new icon
:param icon_background: new icon_background
:return: App instance
"""
app.icon = icon
app.icon_background = icon_background
app.updated_at = datetime.now(timezone.utc).replace(tzinfo=None)
db.session.commit()
return app
def update_app_site_status(self, app: App, enable_site: bool) -> App:
"""
Update app site status
:param app: App instance
:param enable_site: enable site status
:return: App instance
"""
if enable_site == app.enable_site:
return app
app.enable_site = enable_site
app.updated_at = datetime.now(timezone.utc).replace(tzinfo=None)
db.session.commit()
return app
def update_app_api_status(self, app: App, enable_api: bool) -> App:
"""
Update app api status
:param app: App instance
:param enable_api: enable api status
:return: App instance
"""
if enable_api == app.enable_api:
return app
app.enable_api = enable_api
app.updated_at = datetime.now(timezone.utc).replace(tzinfo=None)
db.session.commit()
return app
def delete_app(self, app: App) -> None:
"""
Delete app
:param app: App instance
"""
db.session.delete(app)
db.session.commit()
# Trigger asynchronous deletion of app and related data
remove_app_and_related_data_task.delay(app.id)
def get_app_meta(self, app_model: App) -> dict:
"""
Get app meta info
:param app_model: app model
:return:
"""
app_mode = AppMode.value_of(app_model.mode)
meta = {
'tool_icons': {}
}
if app_mode in [AppMode.ADVANCED_CHAT, AppMode.WORKFLOW]:
workflow = app_model.workflow
if workflow is None:
return meta
graph = workflow.graph_dict
nodes = graph.get('nodes', [])
tools = []
for node in nodes:
if node.get('data', {}).get('type') == 'tool':
node_data = node.get('data', {})
tools.append({
'provider_type': node_data.get('provider_type'),
'provider_id': node_data.get('provider_id'),
'tool_name': node_data.get('tool_name'),
'tool_parameters': {}
})
else:
app_model_config: AppModelConfig = app_model.app_model_config
if not app_model_config:
return meta
agent_config = app_model_config.agent_mode_dict or {}
# get all tools
tools = agent_config.get('tools', [])
url_prefix = (dify_config.CONSOLE_API_URL
+ "/console/api/workspaces/current/tool-provider/builtin/")
for tool in tools:
keys = list(tool.keys())
if len(keys) >= 4:
# current tool standard
provider_type = tool.get('provider_type')
provider_id = tool.get('provider_id')
tool_name = tool.get('tool_name')
if provider_type == 'builtin':
meta['tool_icons'][tool_name] = url_prefix + provider_id + '/icon'
elif provider_type == 'api':
try:
provider: ApiToolProvider = db.session.query(ApiToolProvider).filter(
ApiToolProvider.id == provider_id
).first()
meta['tool_icons'][tool_name] = json.loads(provider.icon)
except:
meta['tool_icons'][tool_name] = {
"background": "#252525",
"content": "\ud83d\ude01"
}
return meta