mirror of
https://github.com/langgenius/dify.git
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443 lines
16 KiB
Python
443 lines
16 KiB
Python
import logging
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import httpx
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import yaml # type: ignore
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from core.app.segments import factory
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from events.app_event import app_model_config_was_updated, app_was_created
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from extensions.ext_database import db
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from models.account import Account
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from models.model import App, AppMode, AppModelConfig
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from models.workflow import Workflow
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from services.workflow_service import WorkflowService
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logger = logging.getLogger(__name__)
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current_dsl_version = "0.1.2"
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dsl_to_dify_version_mapping: dict[str, str] = {
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"0.1.2": "0.8.0",
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"0.1.1": "0.6.0", # dsl version -> from dify version
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}
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class AppDslService:
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@classmethod
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def import_and_create_new_app_from_url(cls, tenant_id: str, url: str, args: dict, account: Account) -> App:
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"""
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Import app dsl from url and create new app
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:param tenant_id: tenant id
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:param url: import url
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:param args: request args
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:param account: Account instance
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"""
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try:
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max_size = 10 * 1024 * 1024 # 10MB
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timeout = httpx.Timeout(10.0)
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with httpx.stream("GET", url.strip(), follow_redirects=True, timeout=timeout) as response:
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response.raise_for_status()
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total_size = 0
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content = b""
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for chunk in response.iter_bytes():
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total_size += len(chunk)
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if total_size > max_size:
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raise ValueError("File size exceeds the limit of 10MB")
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content += chunk
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except httpx.HTTPStatusError as http_err:
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raise ValueError(f"HTTP error occurred: {http_err}")
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except httpx.RequestError as req_err:
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raise ValueError(f"Request error occurred: {req_err}")
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except Exception as e:
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raise ValueError(f"Failed to fetch DSL from URL: {e}")
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if not content:
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raise ValueError("Empty content from url")
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try:
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data = content.decode("utf-8")
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except UnicodeDecodeError as e:
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raise ValueError(f"Error decoding content: {e}")
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return cls.import_and_create_new_app(tenant_id, data, args, account)
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@classmethod
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def import_and_create_new_app(cls, tenant_id: str, data: str, args: dict, account: Account) -> App:
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"""
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Import app dsl and create new app
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:param tenant_id: tenant id
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:param data: import data
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:param args: request args
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:param account: Account instance
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"""
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try:
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import_data = yaml.safe_load(data)
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except yaml.YAMLError:
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raise ValueError("Invalid YAML format in data argument.")
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# check or repair dsl version
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import_data = cls._check_or_fix_dsl(import_data)
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app_data = import_data.get("app")
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if not app_data:
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raise ValueError("Missing app in data argument")
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# get app basic info
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name = args.get("name") or app_data.get("name")
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description = args.get("description") or app_data.get("description", "")
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icon_type = args.get("icon_type") or app_data.get("icon_type")
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icon = args.get("icon") or app_data.get("icon")
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icon_background = args.get("icon_background") or app_data.get("icon_background")
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use_icon_as_answer_icon = app_data.get("use_icon_as_answer_icon", False)
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# import dsl and create app
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app_mode = AppMode.value_of(app_data.get("mode"))
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if app_mode in {AppMode.ADVANCED_CHAT, AppMode.WORKFLOW}:
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app = cls._import_and_create_new_workflow_based_app(
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tenant_id=tenant_id,
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app_mode=app_mode,
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workflow_data=import_data.get("workflow"),
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account=account,
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name=name,
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description=description,
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icon_type=icon_type,
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icon=icon,
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icon_background=icon_background,
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use_icon_as_answer_icon=use_icon_as_answer_icon,
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)
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elif app_mode in {AppMode.CHAT, AppMode.AGENT_CHAT, AppMode.COMPLETION}:
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app = cls._import_and_create_new_model_config_based_app(
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tenant_id=tenant_id,
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app_mode=app_mode,
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model_config_data=import_data.get("model_config"),
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account=account,
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name=name,
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description=description,
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icon_type=icon_type,
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icon=icon,
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icon_background=icon_background,
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use_icon_as_answer_icon=use_icon_as_answer_icon,
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)
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else:
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raise ValueError("Invalid app mode")
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return app
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@classmethod
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def import_and_overwrite_workflow(cls, app_model: App, data: str, account: Account) -> Workflow:
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"""
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Import app dsl and overwrite workflow
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:param app_model: App instance
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:param data: import data
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:param account: Account instance
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"""
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try:
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import_data = yaml.safe_load(data)
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except yaml.YAMLError:
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raise ValueError("Invalid YAML format in data argument.")
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# check or repair dsl version
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import_data = cls._check_or_fix_dsl(import_data)
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app_data = import_data.get("app")
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if not app_data:
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raise ValueError("Missing app in data argument")
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# import dsl and overwrite app
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app_mode = AppMode.value_of(app_data.get("mode"))
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if app_mode not in {AppMode.ADVANCED_CHAT, AppMode.WORKFLOW}:
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raise ValueError("Only support import workflow in advanced-chat or workflow app.")
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if app_data.get("mode") != app_model.mode:
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raise ValueError(f"App mode {app_data.get('mode')} is not matched with current app mode {app_mode.value}")
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return cls._import_and_overwrite_workflow_based_app(
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app_model=app_model,
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workflow_data=import_data.get("workflow"),
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account=account,
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)
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@classmethod
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def export_dsl(cls, app_model: App, include_secret: bool = False) -> str:
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"""
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Export app
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:param app_model: App instance
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:return:
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"""
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app_mode = AppMode.value_of(app_model.mode)
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export_data = {
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"version": current_dsl_version,
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"kind": "app",
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"app": {
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"name": app_model.name,
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"mode": app_model.mode,
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"icon": "🤖" if app_model.icon_type == "image" else app_model.icon,
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"icon_background": "#FFEAD5" if app_model.icon_type == "image" else app_model.icon_background,
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"description": app_model.description,
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"use_icon_as_answer_icon": app_model.use_icon_as_answer_icon,
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},
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}
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if app_mode in {AppMode.ADVANCED_CHAT, AppMode.WORKFLOW}:
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cls._append_workflow_export_data(
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export_data=export_data, app_model=app_model, include_secret=include_secret
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)
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else:
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cls._append_model_config_export_data(export_data, app_model)
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return yaml.dump(export_data, allow_unicode=True)
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@classmethod
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def _check_or_fix_dsl(cls, import_data: dict) -> dict:
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"""
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Check or fix dsl
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:param import_data: import data
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"""
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if not import_data.get("version"):
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import_data["version"] = "0.1.0"
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if not import_data.get("kind") or import_data.get("kind") != "app":
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import_data["kind"] = "app"
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if import_data.get("version") != current_dsl_version:
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# Currently only one DSL version, so no difference checks or compatibility fixes will be performed.
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logger.warning(
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f"DSL version {import_data.get('version')} is not compatible "
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f"with current version {current_dsl_version}, related to "
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f"Dify version {dsl_to_dify_version_mapping.get(current_dsl_version)}."
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)
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return import_data
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@classmethod
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def _import_and_create_new_workflow_based_app(
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cls,
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tenant_id: str,
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app_mode: AppMode,
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workflow_data: dict,
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account: Account,
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name: str,
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description: str,
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icon_type: str,
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icon: str,
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icon_background: str,
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use_icon_as_answer_icon: bool,
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) -> App:
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"""
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Import app dsl and create new workflow based app
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:param tenant_id: tenant id
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:param app_mode: app mode
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:param workflow_data: workflow data
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:param account: Account instance
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:param name: app name
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:param description: app description
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:param icon_type: app icon type, "emoji" or "image"
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:param icon: app icon
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:param icon_background: app icon background
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:param use_icon_as_answer_icon: use app icon as answer icon
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"""
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if not workflow_data:
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raise ValueError("Missing workflow in data argument when app mode is advanced-chat or workflow")
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app = cls._create_app(
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tenant_id=tenant_id,
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app_mode=app_mode,
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account=account,
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name=name,
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description=description,
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icon_type=icon_type,
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icon=icon,
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icon_background=icon_background,
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use_icon_as_answer_icon=use_icon_as_answer_icon,
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)
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# init draft workflow
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environment_variables_list = workflow_data.get("environment_variables") or []
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environment_variables = [factory.build_variable_from_mapping(obj) for obj in environment_variables_list]
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conversation_variables_list = workflow_data.get("conversation_variables") or []
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conversation_variables = [factory.build_variable_from_mapping(obj) for obj in conversation_variables_list]
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workflow_service = WorkflowService()
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draft_workflow = workflow_service.sync_draft_workflow(
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app_model=app,
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graph=workflow_data.get("graph", {}),
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features=workflow_data.get("../core/app/features", {}),
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unique_hash=None,
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account=account,
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environment_variables=environment_variables,
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conversation_variables=conversation_variables,
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)
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workflow_service.publish_workflow(app_model=app, account=account, draft_workflow=draft_workflow)
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return app
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@classmethod
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def _import_and_overwrite_workflow_based_app(
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cls, app_model: App, workflow_data: dict, account: Account
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) -> Workflow:
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"""
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Import app dsl and overwrite workflow based app
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:param app_model: App instance
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:param workflow_data: workflow data
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:param account: Account instance
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"""
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if not workflow_data:
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raise ValueError("Missing workflow in data argument when app mode is advanced-chat or workflow")
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# fetch draft workflow by app_model
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workflow_service = WorkflowService()
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current_draft_workflow = workflow_service.get_draft_workflow(app_model=app_model)
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if current_draft_workflow:
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unique_hash = current_draft_workflow.unique_hash
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else:
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unique_hash = None
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# sync draft workflow
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environment_variables_list = workflow_data.get("environment_variables") or []
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environment_variables = [factory.build_variable_from_mapping(obj) for obj in environment_variables_list]
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conversation_variables_list = workflow_data.get("conversation_variables") or []
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conversation_variables = [factory.build_variable_from_mapping(obj) for obj in conversation_variables_list]
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draft_workflow = workflow_service.sync_draft_workflow(
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app_model=app_model,
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graph=workflow_data.get("graph", {}),
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features=workflow_data.get("features", {}),
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unique_hash=unique_hash,
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account=account,
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environment_variables=environment_variables,
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conversation_variables=conversation_variables,
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)
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return draft_workflow
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@classmethod
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def _import_and_create_new_model_config_based_app(
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cls,
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tenant_id: str,
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app_mode: AppMode,
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model_config_data: dict,
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account: Account,
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name: str,
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description: str,
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icon_type: str,
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icon: str,
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icon_background: str,
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use_icon_as_answer_icon: bool,
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) -> App:
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"""
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Import app dsl and create new model config based app
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:param tenant_id: tenant id
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:param app_mode: app mode
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:param model_config_data: model config data
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:param account: Account instance
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:param name: app name
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:param description: app description
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:param icon: app icon
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:param icon_background: app icon background
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"""
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if not model_config_data:
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raise ValueError("Missing model_config in data argument when app mode is chat, agent-chat or completion")
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app = cls._create_app(
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tenant_id=tenant_id,
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app_mode=app_mode,
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account=account,
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name=name,
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description=description,
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icon_type=icon_type,
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icon=icon,
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icon_background=icon_background,
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use_icon_as_answer_icon=use_icon_as_answer_icon,
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)
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app_model_config = AppModelConfig()
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app_model_config = app_model_config.from_model_config_dict(model_config_data)
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app_model_config.app_id = app.id
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app_model_config.created_by = account.id
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app_model_config.updated_by = account.id
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db.session.add(app_model_config)
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db.session.commit()
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app.app_model_config_id = app_model_config.id
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app_model_config_was_updated.send(app, app_model_config=app_model_config)
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return app
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@classmethod
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def _create_app(
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cls,
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tenant_id: str,
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app_mode: AppMode,
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account: Account,
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name: str,
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description: str,
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icon_type: str,
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icon: str,
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icon_background: str,
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use_icon_as_answer_icon: bool,
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) -> App:
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"""
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Create new app
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:param tenant_id: tenant id
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:param app_mode: app mode
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:param account: Account instance
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:param name: app name
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:param description: app description
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:param icon_type: app icon type, "emoji" or "image"
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:param icon: app icon
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:param icon_background: app icon background
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:param use_icon_as_answer_icon: use app icon as answer icon
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"""
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app = App(
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tenant_id=tenant_id,
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mode=app_mode.value,
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name=name,
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description=description,
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icon_type=icon_type,
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icon=icon,
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icon_background=icon_background,
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enable_site=True,
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enable_api=True,
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use_icon_as_answer_icon=use_icon_as_answer_icon,
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created_by=account.id,
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updated_by=account.id,
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)
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db.session.add(app)
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db.session.commit()
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app_was_created.send(app, account=account)
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return app
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@classmethod
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def _append_workflow_export_data(cls, *, export_data: dict, app_model: App, include_secret: bool) -> None:
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"""
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Append workflow export data
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:param export_data: export data
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:param app_model: App instance
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"""
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workflow_service = WorkflowService()
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workflow = workflow_service.get_draft_workflow(app_model)
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if not workflow:
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raise ValueError("Missing draft workflow configuration, please check.")
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export_data["workflow"] = workflow.to_dict(include_secret=include_secret)
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@classmethod
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def _append_model_config_export_data(cls, export_data: dict, app_model: App) -> None:
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"""
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Append model config export data
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:param export_data: export data
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:param app_model: App instance
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"""
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app_model_config = app_model.app_model_config
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if not app_model_config:
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raise ValueError("Missing app configuration, please check.")
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export_data["model_config"] = app_model_config.to_dict()
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