mirror of
https://github.com/langgenius/dify-plugin-sdks.git
synced 2026-07-22 10:25:23 -04:00
Harry
d6fa7bfb7e
- Updated the version in pyproject.toml from 0.6.0b6 to 0.6.0b7. - Renamed trigger-related methods and classes for clarity, changing invoke_trigger to invoke_trigger_event and updating associated request and response classes. - Adjusted event handling in the GithubTrigger class to improve event dispatching. These changes ensure the plugin is up-to-date and enhance the clarity and functionality of event handling.
543 lines
21 KiB
Python
543 lines
21 KiB
Python
import base64
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import logging
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import uuid
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from collections.abc import Generator
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from typing import Any
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from pydantic import RootModel
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from yarl import URL
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from dify_plugin.config.config import DifyPluginEnv, InstallMethod
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from dify_plugin.config.logger_format import plugin_logger_handler
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from dify_plugin.core.entities.message import InitializeMessage
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from dify_plugin.core.entities.plugin.request import (
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AgentActions,
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DatasourceActions,
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DynamicParameterActions,
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EndpointActions,
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ModelActions,
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OAuthActions,
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PluginInvokeType,
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ToolActions,
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TriggerActions,
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)
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from dify_plugin.core.plugin_executor import PluginExecutor
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from dify_plugin.core.plugin_registration import PluginRegistration
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from dify_plugin.core.runtime import Session
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from dify_plugin.core.server.__base.request_reader import RequestReader
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from dify_plugin.core.server.__base.response_writer import ResponseWriter
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from dify_plugin.core.server.io_server import IOServer
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from dify_plugin.core.server.router import Router
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from dify_plugin.core.server.serverless.request_reader import ServerlessRequestReader
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from dify_plugin.core.server.stdio.request_reader import StdioRequestReader
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from dify_plugin.core.server.stdio.response_writer import StdioResponseWriter
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from dify_plugin.core.server.tcp.request_reader import TCPReaderWriter
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from dify_plugin.entities.tool import ToolInvokeMessage
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logger = logging.getLogger(__name__)
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logger.setLevel(logging.INFO)
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logger.addHandler(plugin_logger_handler)
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class Plugin(IOServer, Router):
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def __init__(self, config: DifyPluginEnv) -> None:
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"""
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Initialize plugin
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"""
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# load plugin configuration
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self.registration = PluginRegistration(config)
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if InstallMethod.Local == config.INSTALL_METHOD:
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request_reader, response_writer = self._launch_local_stream(config)
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elif InstallMethod.Remote == config.INSTALL_METHOD:
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request_reader, response_writer = self._launch_remote_stream(config)
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elif InstallMethod.Serverless == config.INSTALL_METHOD:
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request_reader, response_writer = self._launch_serverless_stream(config)
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else:
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raise ValueError("Invalid install method")
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# set default response writer
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self.default_response_writer = response_writer
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# initialize plugin executor
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self.plugin_executer = PluginExecutor(config, self.registration)
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IOServer.__init__(self, config, request_reader, response_writer)
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Router.__init__(self, request_reader, response_writer)
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# register io routes
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self._register_request_routes()
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def _launch_local_stream(self, config: DifyPluginEnv) -> tuple[RequestReader, ResponseWriter | None]:
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"""
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Launch local stream
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"""
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reader = StdioRequestReader()
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writer = StdioResponseWriter()
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writer.write(self.registration.configuration.model_dump_json() + "\n\n")
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self._log_configuration()
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return reader, writer
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def _launch_remote_stream(self, config: DifyPluginEnv) -> tuple[RequestReader, ResponseWriter | None]:
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"""
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Launch remote stream
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"""
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if not config.REMOTE_INSTALL_KEY:
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raise ValueError("Missing remote install key")
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install_host, install_port = self._get_remote_install_host_and_port(config)
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logging.debug(f"Remote installing to {install_host}:{install_port}")
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tcp_stream = TCPReaderWriter(
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install_host,
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install_port,
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config.REMOTE_INSTALL_KEY,
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on_connected=lambda: self._initialize_tcp_stream(tcp_stream),
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)
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tcp_stream.launch()
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return tcp_stream, tcp_stream
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def _initialize_tcp_stream(
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self,
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tcp_stream: TCPReaderWriter,
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):
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class List(RootModel):
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root: list[Any]
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tcp_stream.write(
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InitializeMessage(
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type=InitializeMessage.Type.MANIFEST_DECLARATION,
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data=self.registration.configuration.model_dump(),
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).model_dump_json()
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+ "\n\n"
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)
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if self.registration.tools_configuration:
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tcp_stream.write(
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InitializeMessage(
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type=InitializeMessage.Type.TOOL_DECLARATION,
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data=List(root=self.registration.tools_configuration).model_dump(),
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).model_dump_json()
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+ "\n\n"
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)
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if self.registration.models_configuration:
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tcp_stream.write(
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InitializeMessage(
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type=InitializeMessage.Type.MODEL_DECLARATION,
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data=List(root=self.registration.models_configuration).model_dump(),
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).model_dump_json()
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+ "\n\n"
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)
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if self.registration.endpoints_configuration:
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tcp_stream.write(
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InitializeMessage(
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type=InitializeMessage.Type.ENDPOINT_DECLARATION,
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data=List(root=self.registration.endpoints_configuration).model_dump(),
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).model_dump_json()
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+ "\n\n"
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)
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if self.registration.agent_strategies_configuration:
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tcp_stream.write(
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InitializeMessage(
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type=InitializeMessage.Type.AGENT_STRATEGY_DECLARATION,
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data=List(root=self.registration.agent_strategies_configuration).model_dump(),
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).model_dump_json()
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+ "\n\n"
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)
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if self.registration.datasource_configuration:
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tcp_stream.write(
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InitializeMessage(
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type=InitializeMessage.Type.DATASOURCE_DECLARATION,
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data=List(root=self.registration.datasource_configuration).model_dump(),
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).model_dump_json()
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+ "\n\n"
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)
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if self.registration.triggers_configuration:
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tcp_stream.write(
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InitializeMessage(
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type=InitializeMessage.Type.TRIGGER_DECLARATION,
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data=List(root=self.registration.triggers_configuration).model_dump(),
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).model_dump_json()
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+ "\n\n"
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)
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for file in self.registration.files:
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# divide the file into chunks
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chunks = [file.data[i : i + 8192] for i in range(0, len(file.data), 8192)]
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for sequence, chunk in enumerate(chunks):
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tcp_stream.write(
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InitializeMessage(
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type=InitializeMessage.Type.ASSET_CHUNK,
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data=InitializeMessage.AssetChunk(
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filename=file.filename,
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data=base64.b64encode(chunk).decode(),
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end=sequence == len(chunks) - 1,
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).model_dump(),
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).model_dump_json()
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+ "\n\n"
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)
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tcp_stream.write(
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InitializeMessage(
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type=InitializeMessage.Type.END,
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data={},
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).model_dump_json()
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+ "\n\n"
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)
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self._log_configuration()
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def _launch_serverless_stream(self, config: DifyPluginEnv) -> tuple[RequestReader, ResponseWriter | None]:
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"""
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Launch Serverless stream
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"""
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serverless = ServerlessRequestReader(
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config.SERVERLESS_HOST,
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config.SERVERLESS_PORT,
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config.SERVERLESS_WORKER_CLASS,
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config.SERVERLESS_WORKERS,
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config.SERVERLESS_THREADS,
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config.MAX_REQUEST_TIMEOUT,
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)
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serverless.launch()
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return serverless, None
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def _log_configuration(self):
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"""
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Log plugin configuration
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"""
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for tool in self.registration.tools_configuration:
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logger.info(f"Installed tool: {tool.identity.name}")
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for model in self.registration.models_configuration:
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logger.info(f"Installed model: {model.provider}")
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for endpoint in self.registration.endpoints_configuration:
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logger.info(f"Installed endpoint: {[e.path for e in endpoint.endpoints]}")
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for agent in self.registration.agent_strategies_configuration:
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logger.info(f"Installed agent: {agent.identity.name}")
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for trigger_provider in self.registration.triggers_configuration:
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logger.info(f"Installed trigger provider: {trigger_provider.identity.name}")
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def _register_request_routes(self):
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"""
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Register routes
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"""
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self.register_route(
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self.plugin_executer.invoke_tool,
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lambda data: data.get("type") == PluginInvokeType.Tool.value
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and data.get("action") == ToolActions.InvokeTool.value,
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)
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self.register_route(
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self.plugin_executer.validate_tool_provider_credentials,
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lambda data: data.get("type") == PluginInvokeType.Tool.value
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and data.get("action") == ToolActions.ValidateCredentials.value,
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)
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self.register_route(
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self.plugin_executer.invoke_agent_strategy,
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lambda data: data.get("type") == PluginInvokeType.Agent.value
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and data.get("action") == AgentActions.InvokeAgentStrategy.value,
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)
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self.register_route(
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self.plugin_executer.invoke_llm,
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lambda data: data.get("type") == PluginInvokeType.Model.value
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and data.get("action") == ModelActions.InvokeLLM.value,
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)
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self.register_route(
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self.plugin_executer.get_llm_num_tokens,
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lambda data: data.get("type") == PluginInvokeType.Model.value
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and data.get("action") == ModelActions.GetLLMNumTokens.value,
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)
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self.register_route(
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self.plugin_executer.invoke_text_embedding,
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lambda data: data.get("type") == PluginInvokeType.Model.value
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and data.get("action") == ModelActions.InvokeTextEmbedding.value,
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)
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self.register_route(
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self.plugin_executer.get_text_embedding_num_tokens,
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lambda data: data.get("type") == PluginInvokeType.Model.value
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and data.get("action") == ModelActions.GetTextEmbeddingNumTokens.value,
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)
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self.register_route(
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self.plugin_executer.invoke_rerank,
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lambda data: data.get("type") == PluginInvokeType.Model.value
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and data.get("action") == ModelActions.InvokeRerank.value,
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)
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self.register_route(
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self.plugin_executer.invoke_tts,
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lambda data: data.get("type") == PluginInvokeType.Model.value
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and data.get("action") == ModelActions.InvokeTTS.value,
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)
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self.register_route(
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self.plugin_executer.get_tts_model_voices,
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lambda data: data.get("type") == PluginInvokeType.Model.value
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and data.get("action") == ModelActions.GetTTSVoices.value,
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)
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self.register_route(
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self.plugin_executer.invoke_speech_to_text,
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lambda data: data.get("type") == PluginInvokeType.Model.value
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and data.get("action") == ModelActions.InvokeSpeech2Text.value,
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)
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self.register_route(
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self.plugin_executer.invoke_moderation,
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lambda data: data.get("type") == PluginInvokeType.Model.value
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and data.get("action") == ModelActions.InvokeModeration.value,
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)
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self.register_route(
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self.plugin_executer.validate_model_provider_credentials,
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lambda data: data.get("type") == PluginInvokeType.Model.value
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and data.get("action") == ModelActions.ValidateProviderCredentials.value,
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)
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self.register_route(
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self.plugin_executer.validate_model_credentials,
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lambda data: data.get("type") == PluginInvokeType.Model.value
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and data.get("action") == ModelActions.ValidateModelCredentials.value,
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)
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self.register_route(
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self.plugin_executer.invoke_endpoint,
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lambda data: data.get("type") == PluginInvokeType.Endpoint.value
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and data.get("action") == EndpointActions.InvokeEndpoint.value,
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)
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self.register_route(
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self.plugin_executer.get_ai_model_schemas,
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lambda data: data.get("type") == PluginInvokeType.Model.value
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and data.get("action") == ModelActions.GetAIModelSchemas.value,
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)
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self.register_route(
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self.plugin_executer.validate_datasource_credentials,
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lambda data: data.get("type") == PluginInvokeType.Datasource.value
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and data.get("action") == DatasourceActions.ValidateCredentials.value,
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)
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self.register_route(
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self.plugin_executer.datasource_crawl_website,
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lambda data: data.get("type") == PluginInvokeType.Datasource.value
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and data.get("action") == DatasourceActions.InvokeWebsiteDatasourceGetCrawl.value,
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)
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self.register_route(
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self.plugin_executer.datasource_get_page_content,
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lambda data: data.get("type") == PluginInvokeType.Datasource.value
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and data.get("action") == DatasourceActions.InvokeOnlineDocumentDatasourceGetPageContent.value,
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)
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self.register_route(
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self.plugin_executer.datasource_get_pages,
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lambda data: data.get("type") == PluginInvokeType.Datasource.value
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and data.get("action") == DatasourceActions.InvokeOnlineDocumentDatasourceGetPages.value,
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)
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self.register_route(
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self.plugin_executer.get_oauth_authorization_url,
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lambda data: data.get("type") == PluginInvokeType.OAuth.value
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and data.get("action") == OAuthActions.GetAuthorizationUrl.value,
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)
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self.register_route(
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self.plugin_executer.get_oauth_credentials,
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lambda data: data.get("type") == PluginInvokeType.OAuth.value
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and data.get("action") == OAuthActions.GetCredentials.value,
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)
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self.register_route(
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self.plugin_executer.refresh_oauth_credentials,
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lambda data: data.get("type") == PluginInvokeType.OAuth.value
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and data.get("action") == OAuthActions.RefreshCredentials.value,
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)
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self.register_route(
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self.plugin_executer.datasource_online_drive_browse_files,
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lambda data: data.get("type") == PluginInvokeType.Datasource.value
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and data.get("action") == DatasourceActions.InvokeOnlineDriveBrowseFiles.value,
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)
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self.register_route(
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self.plugin_executer.datasource_online_drive_download_file,
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lambda data: data.get("type") == PluginInvokeType.Datasource.value
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and data.get("action") == DatasourceActions.InvokeOnlineDriveDownloadFile.value,
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)
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self.register_route(
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self.plugin_executer.fetch_parameter_options,
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lambda data: data.get("type") == PluginInvokeType.DynamicParameter.value
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and data.get("action") == DynamicParameterActions.FetchParameterOptions.value,
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)
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# Trigger routes
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self.register_route(
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self.plugin_executer.invoke_trigger_event,
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lambda data: data.get("type") == PluginInvokeType.Trigger.value
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and data.get("action") == TriggerActions.InvokeTriggerEvent.value,
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)
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self.register_route(
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self.plugin_executer.validate_trigger_provider_credentials,
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lambda data: data.get("type") == PluginInvokeType.Trigger.value
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and data.get("action") == TriggerActions.ValidateProviderCredentials.value,
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)
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self.register_route(
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self.plugin_executer.dispatch_trigger_event,
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lambda data: data.get("type") == PluginInvokeType.Trigger.value
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and data.get("action") == TriggerActions.DispatchTriggerEvent.value,
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)
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self.register_route(
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self.plugin_executer.subscribe_trigger,
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lambda data: data.get("type") == PluginInvokeType.Trigger.value
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and data.get("action") == TriggerActions.SubscribeTrigger.value,
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)
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self.register_route(
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self.plugin_executer.unsubscribe_trigger,
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lambda data: data.get("type") == PluginInvokeType.Trigger.value
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and data.get("action") == TriggerActions.UnsubscribeTrigger.value,
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)
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self.register_route(
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self.plugin_executer.refresh_trigger,
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lambda data: data.get("type") == PluginInvokeType.Trigger.value
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and data.get("action") == TriggerActions.RefreshTrigger.value,
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)
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def _execute_request(
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self,
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session_id: str,
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data: dict,
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reader: RequestReader,
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writer: ResponseWriter,
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conversation_id: str | None = None,
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message_id: str | None = None,
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app_id: str | None = None,
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endpoint_id: str | None = None,
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context: dict | None = None,
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):
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"""
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accept requests and execute
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:param session_id: session id, unique for each request
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:param data: request data
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"""
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session = Session(
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session_id=session_id,
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executor=self.executer,
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reader=reader,
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writer=writer,
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install_method=self.config.INSTALL_METHOD,
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dify_plugin_daemon_url=self.config.DIFY_PLUGIN_DAEMON_URL,
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conversation_id=conversation_id,
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message_id=message_id,
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app_id=app_id,
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endpoint_id=endpoint_id,
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context=context,
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max_invocation_timeout=self.config.MAX_INVOCATION_TIMEOUT,
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)
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response = self.dispatch(session, data)
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if response:
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if isinstance(response, Generator):
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for message in response:
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if isinstance(message, ToolInvokeMessage) and isinstance(
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message.message, ToolInvokeMessage.BlobMessage
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):
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# convert blob to file chunks
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id_ = uuid.uuid4().hex
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blob = message.message.blob
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message.message.blob = id_.encode("utf-8")
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# split the blob into chunks
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chunks = [blob[i : i + 8192] for i in range(0, len(blob), 8192)]
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for sequence, chunk in enumerate(chunks):
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writer.session_message(
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session_id=session_id,
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data=writer.stream_object(
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data=ToolInvokeMessage(
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type=ToolInvokeMessage.MessageType.BLOB_CHUNK,
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message=ToolInvokeMessage.BlobChunkMessage(
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id=id_,
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sequence=sequence,
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total_length=len(blob),
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blob=chunk,
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end=False,
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),
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meta=message.meta,
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),
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),
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)
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# end the file stream
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writer.session_message(
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session_id=session_id,
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data=writer.stream_object(
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data=ToolInvokeMessage(
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type=ToolInvokeMessage.MessageType.BLOB_CHUNK,
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message=ToolInvokeMessage.BlobChunkMessage(
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id=id_,
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sequence=len(chunks),
|
|
total_length=len(blob),
|
|
blob=b"",
|
|
end=True,
|
|
),
|
|
meta=message.meta,
|
|
)
|
|
),
|
|
)
|
|
else:
|
|
writer.session_message(
|
|
session_id=session_id,
|
|
data=writer.stream_object(data=message),
|
|
)
|
|
else:
|
|
writer.session_message(
|
|
session_id=session_id,
|
|
data=writer.stream_object(data=response),
|
|
)
|
|
|
|
@staticmethod
|
|
def _get_remote_install_host_and_port(config: DifyPluginEnv) -> tuple[str, int]:
|
|
"""
|
|
Get host and port for remote installation
|
|
:param config: Dify plugin env config
|
|
:return: host and port
|
|
"""
|
|
install_url = config.REMOTE_INSTALL_URL
|
|
if install_url is not None:
|
|
if ":" in install_url:
|
|
url = URL(install_url)
|
|
if url.host and url.port:
|
|
# for the url with protocol prefix
|
|
host = url.host
|
|
port = url.port
|
|
else:
|
|
# for "host:port" format
|
|
split = install_url.split(":")
|
|
host = split[0]
|
|
port = int(split[1])
|
|
else:
|
|
raise ValueError(
|
|
f'Invalid remote install URL {install_url}, which should be in the format of "host:port"'
|
|
)
|
|
else:
|
|
host = config.REMOTE_INSTALL_HOST
|
|
port = config.REMOTE_INSTALL_PORT
|
|
|
|
return host, port
|