mirror of
https://github.com/langbot-app/LangBot.git
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91 lines
2.8 KiB
Python
91 lines
2.8 KiB
Python
from __future__ import annotations
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import mirai
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from .. import stage, entities, stagemgr
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from ...core import entities as core_entities
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from ...provider import entities as llm_entities
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from ...plugin import events
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@stage.stage_class("PreProcessor")
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class PreProcessor(stage.PipelineStage):
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"""请求预处理阶段
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签出会话、prompt、上文、模型、内容函数。
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改写：
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- session
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- prompt
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- messages
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- user_message
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- use_model
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- use_funcs
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"""
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async def process(
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self,
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query: core_entities.Query,
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stage_inst_name: str,
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) -> entities.StageProcessResult:
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"""处理
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"""
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session = await self.ap.sess_mgr.get_session(query)
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conversation = await self.ap.sess_mgr.get_conversation(session)
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# 从会话取出消息和情景预设到query
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query.session = session
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query.prompt = conversation.prompt.copy()
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query.messages = conversation.messages.copy()
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# 检查vision是否启用，没启用就删除所有图片
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if not self.ap.provider_cfg.data['enable-vision']:
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for msg in query.messages:
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if isinstance(msg.content, list):
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for me in msg.content:
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if me.type == 'image_url':
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msg.content.remove(me)
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content_list = []
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for me in query.message_chain:
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if isinstance(me, mirai.Plain):
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content_list.append(
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llm_entities.ContentElement.from_text(me.text)
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)
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elif isinstance(me, mirai.Image):
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if self.ap.provider_cfg.data['enable-vision']:
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if me.url is not None:
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content_list.append(
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llm_entities.ContentElement.from_image_url(str(me.url))
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)
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query.user_message = llm_entities.Message( # TODO 适配多模态输入
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role='user',
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content=content_list
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)
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query.use_model = conversation.use_model
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query.use_funcs = conversation.use_funcs
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# =========== 触发事件 PromptPreProcessing
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event_ctx = await self.ap.plugin_mgr.emit_event(
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event=events.PromptPreProcessing(
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session_name=f'{query.session.launcher_type.value}_{query.session.launcher_id}',
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default_prompt=query.prompt.messages,
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prompt=query.messages,
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query=query
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)
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)
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query.prompt.messages = event_ctx.event.default_prompt
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query.messages = event_ctx.event.prompt
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return entities.StageProcessResult(
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result_type=entities.ResultType.CONTINUE,
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new_query=query
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)
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