mirror of
https://github.com/open-webui/open-webui
synced 2024-12-29 07:12:07 +00:00
316 lines
10 KiB
Python
316 lines
10 KiB
Python
import logging
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import math
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import re
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from datetime import datetime
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from typing import Optional
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import uuid
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from open_webui.utils.misc import get_last_user_message, get_messages_content
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from open_webui.env import SRC_LOG_LEVELS
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from open_webui.config import DEFAULT_RAG_TEMPLATE
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log = logging.getLogger(__name__)
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log.setLevel(SRC_LOG_LEVELS["RAG"])
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def get_task_model_id(
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default_model_id: str, task_model: str, task_model_external: str, models
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) -> str:
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# Set the task model
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task_model_id = default_model_id
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# Check if the user has a custom task model and use that model
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if models[task_model_id]["owned_by"] == "ollama":
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if task_model and task_model in models:
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task_model_id = task_model
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else:
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if task_model_external and task_model_external in models:
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task_model_id = task_model_external
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return task_model_id
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def prompt_template(
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template: str, user_name: Optional[str] = None, user_location: Optional[str] = None
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) -> str:
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# Get the current date
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current_date = datetime.now()
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# Format the date to YYYY-MM-DD
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formatted_date = current_date.strftime("%Y-%m-%d")
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formatted_time = current_date.strftime("%I:%M:%S %p")
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formatted_weekday = current_date.strftime("%A")
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template = template.replace("{{CURRENT_DATE}}", formatted_date)
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template = template.replace("{{CURRENT_TIME}}", formatted_time)
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template = template.replace(
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"{{CURRENT_DATETIME}}", f"{formatted_date} {formatted_time}"
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)
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template = template.replace("{{CURRENT_WEEKDAY}}", formatted_weekday)
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if user_name:
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# Replace {{USER_NAME}} in the template with the user's name
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template = template.replace("{{USER_NAME}}", user_name)
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else:
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# Replace {{USER_NAME}} in the template with "Unknown"
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template = template.replace("{{USER_NAME}}", "Unknown")
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if user_location:
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# Replace {{USER_LOCATION}} in the template with the current location
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template = template.replace("{{USER_LOCATION}}", user_location)
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else:
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# Replace {{USER_LOCATION}} in the template with "Unknown"
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template = template.replace("{{USER_LOCATION}}", "Unknown")
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return template
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def replace_prompt_variable(template: str, prompt: str) -> str:
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def replacement_function(match):
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full_match = match.group(
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0
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).lower() # Normalize to lowercase for consistent handling
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start_length = match.group(1)
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end_length = match.group(2)
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middle_length = match.group(3)
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if full_match == "{{prompt}}":
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return prompt
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elif start_length is not None:
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return prompt[: int(start_length)]
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elif end_length is not None:
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return prompt[-int(end_length) :]
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elif middle_length is not None:
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middle_length = int(middle_length)
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if len(prompt) <= middle_length:
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return prompt
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start = prompt[: math.ceil(middle_length / 2)]
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end = prompt[-math.floor(middle_length / 2) :]
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return f"{start}...{end}"
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return ""
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# Updated regex pattern to make it case-insensitive with the `(?i)` flag
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pattern = r"(?i){{prompt}}|{{prompt:start:(\d+)}}|{{prompt:end:(\d+)}}|{{prompt:middletruncate:(\d+)}}"
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template = re.sub(pattern, replacement_function, template)
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return template
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def replace_messages_variable(
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template: str, messages: Optional[list[str]] = None
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) -> str:
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def replacement_function(match):
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full_match = match.group(0)
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start_length = match.group(1)
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end_length = match.group(2)
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middle_length = match.group(3)
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# If messages is None, handle it as an empty list
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if messages is None:
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return ""
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# Process messages based on the number of messages required
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if full_match == "{{MESSAGES}}":
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return get_messages_content(messages)
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elif start_length is not None:
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return get_messages_content(messages[: int(start_length)])
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elif end_length is not None:
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return get_messages_content(messages[-int(end_length) :])
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elif middle_length is not None:
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mid = int(middle_length)
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if len(messages) <= mid:
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return get_messages_content(messages)
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# Handle middle truncation: split to get start and end portions of the messages list
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half = mid // 2
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start_msgs = messages[:half]
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end_msgs = messages[-half:] if mid % 2 == 0 else messages[-(half + 1) :]
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formatted_start = get_messages_content(start_msgs)
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formatted_end = get_messages_content(end_msgs)
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return f"{formatted_start}\n{formatted_end}"
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return ""
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template = re.sub(
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r"{{MESSAGES}}|{{MESSAGES:START:(\d+)}}|{{MESSAGES:END:(\d+)}}|{{MESSAGES:MIDDLETRUNCATE:(\d+)}}",
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replacement_function,
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template,
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)
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return template
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# {{prompt:middletruncate:8000}}
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def rag_template(template: str, context: str, query: str):
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if template.strip() == "":
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template = DEFAULT_RAG_TEMPLATE
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if "[context]" not in template and "{{CONTEXT}}" not in template:
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log.debug(
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"WARNING: The RAG template does not contain the '[context]' or '{{CONTEXT}}' placeholder."
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)
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if "<context>" in context and "</context>" in context:
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log.debug(
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"WARNING: Potential prompt injection attack: the RAG "
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"context contains '<context>' and '</context>'. This might be "
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"nothing, or the user might be trying to hack something."
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)
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query_placeholders = []
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if "[query]" in context:
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query_placeholder = "{{QUERY" + str(uuid.uuid4()) + "}}"
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template = template.replace("[query]", query_placeholder)
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query_placeholders.append(query_placeholder)
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if "{{QUERY}}" in context:
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query_placeholder = "{{QUERY" + str(uuid.uuid4()) + "}}"
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template = template.replace("{{QUERY}}", query_placeholder)
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query_placeholders.append(query_placeholder)
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template = template.replace("[context]", context)
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template = template.replace("{{CONTEXT}}", context)
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template = template.replace("[query]", query)
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template = template.replace("{{QUERY}}", query)
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for query_placeholder in query_placeholders:
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template = template.replace(query_placeholder, query)
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return template
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def title_generation_template(
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template: str, messages: list[dict], user: Optional[dict] = None
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) -> str:
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prompt = get_last_user_message(messages)
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template = replace_prompt_variable(template, prompt)
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template = replace_messages_variable(template, messages)
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template = prompt_template(
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template,
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**(
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{"user_name": user.get("name"), "user_location": user.get("location")}
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if user
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else {}
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),
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)
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return template
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def tags_generation_template(
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template: str, messages: list[dict], user: Optional[dict] = None
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) -> str:
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prompt = get_last_user_message(messages)
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template = replace_prompt_variable(template, prompt)
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template = replace_messages_variable(template, messages)
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template = prompt_template(
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template,
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**(
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{"user_name": user.get("name"), "user_location": user.get("location")}
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if user
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else {}
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),
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)
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return template
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def emoji_generation_template(
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template: str, prompt: str, user: Optional[dict] = None
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) -> str:
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template = replace_prompt_variable(template, prompt)
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template = prompt_template(
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template,
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**(
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{"user_name": user.get("name"), "user_location": user.get("location")}
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if user
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else {}
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),
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)
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return template
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def autocomplete_generation_template(
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template: str,
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prompt: str,
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messages: Optional[list[dict]] = None,
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type: Optional[str] = None,
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user: Optional[dict] = None,
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) -> str:
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template = template.replace("{{TYPE}}", type if type else "")
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template = replace_prompt_variable(template, prompt)
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template = replace_messages_variable(template, messages)
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template = prompt_template(
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template,
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**(
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{"user_name": user.get("name"), "user_location": user.get("location")}
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if user
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else {}
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),
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)
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return template
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def query_generation_template(
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template: str, messages: list[dict], user: Optional[dict] = None
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) -> str:
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prompt = get_last_user_message(messages)
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template = replace_prompt_variable(template, prompt)
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template = replace_messages_variable(template, messages)
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template = prompt_template(
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template,
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**(
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{"user_name": user.get("name"), "user_location": user.get("location")}
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if user
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else {}
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),
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)
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return template
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def moa_response_generation_template(
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template: str, prompt: str, responses: list[str]
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) -> str:
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def replacement_function(match):
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full_match = match.group(0)
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start_length = match.group(1)
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end_length = match.group(2)
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middle_length = match.group(3)
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if full_match == "{{prompt}}":
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return prompt
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elif start_length is not None:
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return prompt[: int(start_length)]
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elif end_length is not None:
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return prompt[-int(end_length) :]
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elif middle_length is not None:
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middle_length = int(middle_length)
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if len(prompt) <= middle_length:
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return prompt
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start = prompt[: math.ceil(middle_length / 2)]
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end = prompt[-math.floor(middle_length / 2) :]
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return f"{start}...{end}"
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return ""
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template = re.sub(
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r"{{prompt}}|{{prompt:start:(\d+)}}|{{prompt:end:(\d+)}}|{{prompt:middletruncate:(\d+)}}",
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replacement_function,
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template,
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)
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responses = [f'"""{response}"""' for response in responses]
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responses = "\n\n".join(responses)
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template = template.replace("{{responses}}", responses)
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return template
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def tools_function_calling_generation_template(template: str, tools_specs: str) -> str:
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template = template.replace("{{TOOLS}}", tools_specs)
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return template
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