This commit is contained in:
ManishMadan2882
2025-08-05 15:28:51 +05:30
25 changed files with 1139 additions and 1058 deletions

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from flask_restx import Api
api = Api(
version="1.0",
title="DocsGPT API",
description="API for DocsGPT",
)

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from flask import Blueprint
from application.api import api
from application.api.answer.routes.answer import AnswerResource
from application.api.answer.routes.base import answer_ns
from application.api.answer.routes.stream import StreamResource
answer = Blueprint("answer", __name__)
api.add_namespace(answer_ns)
def init_answer_routes():
api.add_resource(StreamResource, "/stream")
api.add_resource(AnswerResource, "/api/answer")
init_answer_routes()

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import asyncio
import datetime
import json
import logging
import os
import traceback
from bson.dbref import DBRef
from bson.objectid import ObjectId
from flask import Blueprint, make_response, request, Response
from flask_restx import fields, Namespace, Resource
from application.agents.agent_creator import AgentCreator
from application.core.mongo_db import MongoDB
from application.core.settings import settings
from application.error import bad_request
from application.extensions import api
from application.llm.llm_creator import LLMCreator
from application.retriever.retriever_creator import RetrieverCreator
from application.utils import check_required_fields, limit_chat_history
logger = logging.getLogger(__name__)
mongo = MongoDB.get_client()
db = mongo[settings.MONGO_DB_NAME]
conversations_collection = db["conversations"]
sources_collection = db["sources"]
prompts_collection = db["prompts"]
agents_collection = db["agents"]
user_logs_collection = db["user_logs"]
attachments_collection = db["attachments"]
answer = Blueprint("answer", __name__)
answer_ns = Namespace("answer", description="Answer related operations", path="/")
api.add_namespace(answer_ns)
gpt_model = ""
# to have some kind of default behaviour
if settings.LLM_PROVIDER == "openai":
gpt_model = "gpt-4o-mini"
elif settings.LLM_PROVIDER == "anthropic":
gpt_model = "claude-2"
elif settings.LLM_PROVIDER == "groq":
gpt_model = "llama3-8b-8192"
elif settings.LLM_PROVIDER == "novita":
gpt_model = "deepseek/deepseek-r1"
if settings.LLM_NAME: # in case there is particular model name configured
gpt_model = settings.LLM_NAME
# load the prompts
current_dir = os.path.dirname(
os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
)
with open(os.path.join(current_dir, "prompts", "chat_combine_default.txt"), "r") as f:
chat_combine_template = f.read()
with open(os.path.join(current_dir, "prompts", "chat_reduce_prompt.txt"), "r") as f:
chat_reduce_template = f.read()
with open(os.path.join(current_dir, "prompts", "chat_combine_creative.txt"), "r") as f:
chat_combine_creative = f.read()
with open(os.path.join(current_dir, "prompts", "chat_combine_strict.txt"), "r") as f:
chat_combine_strict = f.read()
api_key_set = settings.API_KEY is not None
embeddings_key_set = settings.EMBEDDINGS_KEY is not None
async def async_generate(chain, question, chat_history):
result = await chain.arun({"question": question, "chat_history": chat_history})
return result
def run_async_chain(chain, question, chat_history):
loop = asyncio.new_event_loop()
asyncio.set_event_loop(loop)
result = {}
try:
answer = loop.run_until_complete(async_generate(chain, question, chat_history))
finally:
loop.close()
result["answer"] = answer
return result
def get_agent_key(agent_id, user_id):
if not agent_id:
return None, False, None
try:
agent = agents_collection.find_one({"_id": ObjectId(agent_id)})
if agent is None:
raise Exception("Agent not found", 404)
is_owner = agent.get("user") == user_id
if is_owner:
agents_collection.update_one(
{"_id": ObjectId(agent_id)},
{"$set": {"lastUsedAt": datetime.datetime.now(datetime.timezone.utc)}},
)
return str(agent["key"]), False, None
is_shared_with_user = agent.get(
"shared_publicly", False
) or user_id in agent.get("shared_with", [])
if is_shared_with_user:
return str(agent["key"]), True, agent.get("shared_token")
raise Exception("Unauthorized access to the agent", 403)
except Exception as e:
logger.error(f"Error in get_agent_key: {str(e)}", exc_info=True)
raise
def get_data_from_api_key(api_key):
data = agents_collection.find_one({"key": api_key})
if not data:
raise Exception("Invalid API Key, please generate a new key", 401)
source = data.get("source")
if isinstance(source, DBRef):
source_doc = db.dereference(source)
data["source"] = str(source_doc["_id"])
data["retriever"] = source_doc.get("retriever", data.get("retriever"))
else:
data["source"] = {}
return data
def get_retriever(source_id: str):
doc = sources_collection.find_one({"_id": ObjectId(source_id)})
if doc is None:
raise Exception("Source document does not exist", 404)
retriever_name = None if "retriever" not in doc else doc["retriever"]
return retriever_name
def is_azure_configured():
return (
settings.OPENAI_API_BASE
and settings.OPENAI_API_VERSION
and settings.AZURE_DEPLOYMENT_NAME
)
def save_conversation(
conversation_id,
question,
response,
thought,
source_log_docs,
tool_calls,
llm,
decoded_token,
index=None,
api_key=None,
agent_id=None,
is_shared_usage=False,
shared_token=None,
attachment_ids=None,
):
current_time = datetime.datetime.now(datetime.timezone.utc)
if conversation_id is not None and index is not None:
conversations_collection.update_one(
{"_id": ObjectId(conversation_id), f"queries.{index}": {"$exists": True}},
{
"$set": {
f"queries.{index}.prompt": question,
f"queries.{index}.response": response,
f"queries.{index}.thought": thought,
f"queries.{index}.sources": source_log_docs,
f"queries.{index}.tool_calls": tool_calls,
f"queries.{index}.timestamp": current_time,
f"queries.{index}.attachments": attachment_ids,
}
},
)
##remove following queries from the array
conversations_collection.update_one(
{"_id": ObjectId(conversation_id), f"queries.{index}": {"$exists": True}},
{"$push": {"queries": {"$each": [], "$slice": index + 1}}},
)
elif conversation_id is not None and conversation_id != "None":
conversations_collection.update_one(
{"_id": ObjectId(conversation_id)},
{
"$push": {
"queries": {
"prompt": question,
"response": response,
"thought": thought,
"sources": source_log_docs,
"tool_calls": tool_calls,
"timestamp": current_time,
"attachments": attachment_ids,
}
}
},
)
else:
# create new conversation
# generate summary
messages_summary = [
{
"role": "assistant",
"content": "Summarise following conversation in no more than 3 "
"words, respond ONLY with the summary, use the same "
"language as the user query",
},
{
"role": "user",
"content": "Summarise following conversation in no more than 3 words, "
"respond ONLY with the summary, use the same language as the "
"user query \n\nUser: " + question + "\n\n" + "AI: " + response,
},
]
completion = llm.gen(model=gpt_model, messages=messages_summary, max_tokens=30)
conversation_data = {
"user": decoded_token.get("sub"),
"date": datetime.datetime.utcnow(),
"name": completion,
"queries": [
{
"prompt": question,
"response": response,
"thought": thought,
"sources": source_log_docs,
"tool_calls": tool_calls,
"timestamp": current_time,
"attachments": attachment_ids,
}
],
}
if api_key:
if agent_id:
conversation_data["agent_id"] = agent_id
if is_shared_usage:
conversation_data["is_shared_usage"] = is_shared_usage
conversation_data["shared_token"] = shared_token
api_key_doc = agents_collection.find_one({"key": api_key})
if api_key_doc:
conversation_data["api_key"] = api_key_doc["key"]
conversation_id = conversations_collection.insert_one(
conversation_data
).inserted_id
return conversation_id
def get_prompt(prompt_id):
if prompt_id == "default":
prompt = chat_combine_template
elif prompt_id == "creative":
prompt = chat_combine_creative
elif prompt_id == "strict":
prompt = chat_combine_strict
else:
prompt = prompts_collection.find_one({"_id": ObjectId(prompt_id)})["content"]
return prompt
def complete_stream(
question,
agent,
retriever,
conversation_id,
user_api_key,
decoded_token,
isNoneDoc=False,
index=None,
should_save_conversation=True,
attachment_ids=None,
agent_id=None,
is_shared_usage=False,
shared_token=None,
):
try:
response_full, thought, source_log_docs, tool_calls = "", "", [], []
answer = agent.gen(query=question, retriever=retriever)
for line in answer:
if "answer" in line:
response_full += str(line["answer"])
data = json.dumps({"type": "answer", "answer": line["answer"]})
yield f"data: {data}\n\n"
elif "sources" in line:
truncated_sources = []
source_log_docs = line["sources"]
for source in line["sources"]:
truncated_source = source.copy()
if "text" in truncated_source:
truncated_source["text"] = (
truncated_source["text"][:100].strip() + "..."
)
truncated_sources.append(truncated_source)
if len(truncated_sources) > 0:
data = json.dumps({"type": "source", "source": truncated_sources})
yield f"data: {data}\n\n"
elif "tool_calls" in line:
tool_calls = line["tool_calls"]
elif "thought" in line:
thought += line["thought"]
data = json.dumps({"type": "thought", "thought": line["thought"]})
yield f"data: {data}\n\n"
elif "type" in line:
data = json.dumps(line)
yield f"data: {data}\n\n"
if isNoneDoc:
for doc in source_log_docs:
doc["source"] = "None"
llm = LLMCreator.create_llm(
settings.LLM_PROVIDER,
api_key=settings.API_KEY,
user_api_key=user_api_key,
decoded_token=decoded_token,
)
if should_save_conversation:
conversation_id = save_conversation(
conversation_id,
question,
response_full,
thought,
source_log_docs,
tool_calls,
llm,
decoded_token,
index,
api_key=user_api_key,
attachment_ids=attachment_ids,
agent_id=agent_id,
is_shared_usage=is_shared_usage,
shared_token=shared_token,
)
else:
conversation_id = None
# send data.type = "end" to indicate that the stream has ended as json
data = json.dumps({"type": "id", "id": str(conversation_id)})
yield f"data: {data}\n\n"
retriever_params = retriever.get_params()
user_logs_collection.insert_one(
{
"action": "stream_answer",
"level": "info",
"user": decoded_token.get("sub"),
"api_key": user_api_key,
"question": question,
"response": response_full,
"sources": source_log_docs,
"retriever_params": retriever_params,
"attachments": attachment_ids,
"timestamp": datetime.datetime.now(datetime.timezone.utc),
}
)
data = json.dumps({"type": "end"})
yield f"data: {data}\n\n"
except Exception as e:
logger.error(f"Error in stream: {str(e)}", exc_info=True)
data = json.dumps(
{
"type": "error",
"error": "Please try again later. We apologize for any inconvenience.",
}
)
yield f"data: {data}\n\n"
return
@answer_ns.route("/stream")
class Stream(Resource):
stream_model = api.model(
"StreamModel",
{
"question": fields.String(
required=True, description="Question to be asked"
),
"history": fields.List(
fields.String, required=False, description="Chat history"
),
"conversation_id": fields.String(
required=False, description="Conversation ID"
),
"prompt_id": fields.String(
required=False, default="default", description="Prompt ID"
),
"chunks": fields.Integer(
required=False, default=2, description="Number of chunks"
),
"token_limit": fields.Integer(required=False, description="Token limit"),
"retriever": fields.String(required=False, description="Retriever type"),
"api_key": fields.String(required=False, description="API key"),
"active_docs": fields.String(
required=False, description="Active documents"
),
"isNoneDoc": fields.Boolean(
required=False, description="Flag indicating if no document is used"
),
"index": fields.Integer(
required=False, description="Index of the query to update"
),
"save_conversation": fields.Boolean(
required=False,
default=True,
description="Whether to save the conversation",
),
"attachments": fields.List(
fields.String, required=False, description="List of attachment IDs"
),
},
)
@api.expect(stream_model)
@api.doc(description="Stream a response based on the question and retriever")
def post(self):
data = request.get_json()
required_fields = ["question"]
if "index" in data:
required_fields = ["question", "conversation_id"]
missing_fields = check_required_fields(data, required_fields)
if missing_fields:
return missing_fields
save_conv = data.get("save_conversation", True)
try:
question = data["question"]
history = limit_chat_history(
json.loads(data.get("history", "[]")), gpt_model=gpt_model
)
conversation_id = data.get("conversation_id")
prompt_id = data.get("prompt_id", "default")
attachment_ids = data.get("attachments", [])
index = data.get("index", None)
chunks = int(data.get("chunks", 2))
token_limit = data.get("token_limit", settings.DEFAULT_MAX_HISTORY)
retriever_name = data.get("retriever", "classic")
agent_id = data.get("agent_id", None)
agent_type = settings.AGENT_NAME
decoded_token = getattr(request, "decoded_token", None)
user_sub = decoded_token.get("sub") if decoded_token else None
agent_key, is_shared_usage, shared_token = get_agent_key(agent_id, user_sub)
if agent_key:
data.update({"api_key": agent_key})
else:
agent_id = None
if "api_key" in data:
data_key = get_data_from_api_key(data["api_key"])
chunks = int(data_key.get("chunks", 2))
prompt_id = data_key.get("prompt_id", "default")
source = {"active_docs": data_key.get("source")}
retriever_name = data_key.get("retriever", retriever_name)
user_api_key = data["api_key"]
agent_type = data_key.get("agent_type", agent_type)
if is_shared_usage:
decoded_token = request.decoded_token
else:
decoded_token = {"sub": data_key.get("user")}
is_shared_usage = False
elif "active_docs" in data:
source = {"active_docs": data["active_docs"]}
retriever_name = get_retriever(data["active_docs"]) or retriever_name
user_api_key = None
decoded_token = request.decoded_token
else:
source = {}
user_api_key = None
decoded_token = request.decoded_token
if not decoded_token:
return make_response({"error": "Unauthorized"}, 401)
attachments = get_attachments_content(
attachment_ids, decoded_token.get("sub")
)
logger.info(
f"/stream - request_data: {data}, source: {source}, attachments: {len(attachments)}",
extra={"data": json.dumps({"request_data": data, "source": source})},
)
prompt = get_prompt(prompt_id)
if "isNoneDoc" in data and data["isNoneDoc"] is True:
chunks = 0
agent = AgentCreator.create_agent(
agent_type,
endpoint="stream",
llm_name=settings.LLM_PROVIDER,
gpt_model=gpt_model,
api_key=settings.API_KEY,
user_api_key=user_api_key,
prompt=prompt,
chat_history=history,
decoded_token=decoded_token,
attachments=attachments,
)
retriever = RetrieverCreator.create_retriever(
retriever_name,
source=source,
chat_history=history,
prompt=prompt,
chunks=chunks,
token_limit=token_limit,
gpt_model=gpt_model,
user_api_key=user_api_key,
decoded_token=decoded_token,
)
return Response(
complete_stream(
question=question,
agent=agent,
retriever=retriever,
conversation_id=conversation_id,
user_api_key=user_api_key,
decoded_token=decoded_token,
isNoneDoc=data.get("isNoneDoc"),
index=index,
should_save_conversation=save_conv,
attachment_ids=attachment_ids,
agent_id=agent_id,
is_shared_usage=is_shared_usage,
shared_token=shared_token,
),
mimetype="text/event-stream",
)
except ValueError:
message = "Malformed request body"
logger.error(f"/stream - error: {message}")
return Response(
error_stream_generate(message),
status=400,
mimetype="text/event-stream",
)
except Exception as e:
logger.error(
f"/stream - error: {str(e)} - traceback: {traceback.format_exc()}",
extra={"error": str(e), "traceback": traceback.format_exc()},
)
status_code = 400
return Response(
error_stream_generate("Unknown error occurred"),
status=status_code,
mimetype="text/event-stream",
)
def error_stream_generate(err_response):
data = json.dumps({"type": "error", "error": err_response})
yield f"data: {data}\n\n"
@answer_ns.route("/api/answer")
class Answer(Resource):
answer_model = api.model(
"AnswerModel",
{
"question": fields.String(
required=True, description="The question to answer"
),
"history": fields.List(
fields.String, required=False, description="Conversation history"
),
"conversation_id": fields.String(
required=False, description="Conversation ID"
),
"prompt_id": fields.String(
required=False, default="default", description="Prompt ID"
),
"chunks": fields.Integer(
required=False, default=2, description="Number of chunks"
),
"token_limit": fields.Integer(required=False, description="Token limit"),
"retriever": fields.String(required=False, description="Retriever type"),
"api_key": fields.String(required=False, description="API key"),
"active_docs": fields.String(
required=False, description="Active documents"
),
"isNoneDoc": fields.Boolean(
required=False, description="Flag indicating if no document is used"
),
},
)
@api.expect(answer_model)
@api.doc(description="Provide an answer based on the question and retriever")
def post(self):
data = request.get_json()
required_fields = ["question"]
missing_fields = check_required_fields(data, required_fields)
if missing_fields:
return missing_fields
try:
question = data["question"]
history = limit_chat_history(
json.loads(data.get("history", "[]")), gpt_model=gpt_model
)
conversation_id = data.get("conversation_id")
prompt_id = data.get("prompt_id", "default")
chunks = int(data.get("chunks", 2))
token_limit = data.get("token_limit", settings.DEFAULT_MAX_HISTORY)
retriever_name = data.get("retriever", "classic")
agent_type = settings.AGENT_NAME
if "api_key" in data:
data_key = get_data_from_api_key(data["api_key"])
chunks = int(data_key.get("chunks", 2))
prompt_id = data_key.get("prompt_id", "default")
source = {"active_docs": data_key.get("source")}
retriever_name = data_key.get("retriever", retriever_name)
user_api_key = data["api_key"]
agent_type = data_key.get("agent_type", agent_type)
decoded_token = {"sub": data_key.get("user")}
elif "active_docs" in data:
source = {"active_docs": data["active_docs"]}
retriever_name = get_retriever(data["active_docs"]) or retriever_name
user_api_key = None
decoded_token = request.decoded_token
else:
source = {}
user_api_key = None
decoded_token = request.decoded_token
if not decoded_token:
return make_response({"error": "Unauthorized"}, 401)
prompt = get_prompt(prompt_id)
logger.info(
f"/api/answer - request_data: {data}, source: {source}",
extra={"data": json.dumps({"request_data": data, "source": source})},
)
agent = AgentCreator.create_agent(
agent_type,
endpoint="api/answer",
llm_name=settings.LLM_PROVIDER,
gpt_model=gpt_model,
api_key=settings.API_KEY,
user_api_key=user_api_key,
prompt=prompt,
chat_history=history,
decoded_token=decoded_token,
)
retriever = RetrieverCreator.create_retriever(
retriever_name,
source=source,
chat_history=history,
prompt=prompt,
chunks=chunks,
token_limit=token_limit,
gpt_model=gpt_model,
user_api_key=user_api_key,
decoded_token=decoded_token,
)
response_full = ""
source_log_docs = []
tool_calls = []
stream_ended = False
thought = ""
for line in complete_stream(
question=question,
agent=agent,
retriever=retriever,
conversation_id=conversation_id,
user_api_key=user_api_key,
decoded_token=decoded_token,
isNoneDoc=data.get("isNoneDoc"),
index=None,
should_save_conversation=False,
):
try:
event_data = line.replace("data: ", "").strip()
event = json.loads(event_data)
if event["type"] == "answer":
response_full += event["answer"]
elif event["type"] == "source":
source_log_docs = event["source"]
elif event["type"] == "tool_calls":
tool_calls = event["tool_calls"]
elif event["type"] == "thought":
thought = event["thought"]
elif event["type"] == "error":
logger.error(f"Error from stream: {event['error']}")
return bad_request(500, event["error"])
elif event["type"] == "end":
stream_ended = True
except (json.JSONDecodeError, KeyError) as e:
logger.warning(f"Error parsing stream event: {e}, line: {line}")
continue
if not stream_ended:
logger.error("Stream ended unexpectedly without an 'end' event.")
return bad_request(500, "Stream ended unexpectedly.")
if data.get("isNoneDoc"):
for doc in source_log_docs:
doc["source"] = "None"
llm = LLMCreator.create_llm(
settings.LLM_PROVIDER,
api_key=settings.API_KEY,
user_api_key=user_api_key,
decoded_token=decoded_token,
)
result = {"answer": response_full, "sources": source_log_docs}
result["conversation_id"] = str(
save_conversation(
conversation_id,
question,
response_full,
thought,
source_log_docs,
tool_calls,
llm,
decoded_token,
api_key=user_api_key,
)
)
retriever_params = retriever.get_params()
user_logs_collection.insert_one(
{
"action": "api_answer",
"level": "info",
"user": decoded_token.get("sub"),
"api_key": user_api_key,
"question": question,
"response": response_full,
"sources": source_log_docs,
"retriever_params": retriever_params,
"timestamp": datetime.datetime.now(datetime.timezone.utc),
}
)
except Exception as e:
logger.error(
f"/api/answer - error: {str(e)} - traceback: {traceback.format_exc()}",
extra={"error": str(e), "traceback": traceback.format_exc()},
)
return bad_request(500, str(e))
return make_response(result, 200)
@answer_ns.route("/api/search")
class Search(Resource):
search_model = api.model(
"SearchModel",
{
"question": fields.String(
required=True, description="The question to search"
),
"chunks": fields.Integer(
required=False, default=2, description="Number of chunks"
),
"api_key": fields.String(
required=False, description="API key for authentication"
),
"active_docs": fields.String(
required=False, description="Active documents for retrieval"
),
"retriever": fields.String(required=False, description="Retriever type"),
"token_limit": fields.Integer(
required=False, description="Limit for tokens"
),
"isNoneDoc": fields.Boolean(
required=False, description="Flag indicating if no document is used"
),
},
)
@api.expect(search_model)
@api.doc(
description="Search for relevant documents based on the question and retriever"
)
def post(self):
data = request.get_json()
required_fields = ["question"]
missing_fields = check_required_fields(data, required_fields)
if missing_fields:
return missing_fields
try:
question = data["question"]
chunks = int(data.get("chunks", 2))
token_limit = data.get("token_limit", settings.DEFAULT_MAX_HISTORY)
retriever_name = data.get("retriever", "classic")
if "api_key" in data:
data_key = get_data_from_api_key(data["api_key"])
chunks = int(data_key.get("chunks", 2))
source = {"active_docs": data_key.get("source")}
user_api_key = data["api_key"]
decoded_token = {"sub": data_key.get("user")}
elif "active_docs" in data:
source = {"active_docs": data["active_docs"]}
user_api_key = None
decoded_token = request.decoded_token
else:
source = {}
user_api_key = None
decoded_token = request.decoded_token
if not decoded_token:
return make_response({"error": "Unauthorized"}, 401)
logger.info(
f"/api/answer - request_data: {data}, source: {source}",
extra={"data": json.dumps({"request_data": data, "source": source})},
)
retriever = RetrieverCreator.create_retriever(
retriever_name,
source=source,
chat_history=[],
prompt="default",
chunks=chunks,
token_limit=token_limit,
gpt_model=gpt_model,
user_api_key=user_api_key,
decoded_token=decoded_token,
)
docs = retriever.search(question)
retriever_params = retriever.get_params()
user_logs_collection.insert_one(
{
"action": "api_search",
"level": "info",
"user": decoded_token.get("sub"),
"api_key": user_api_key,
"question": question,
"sources": docs,
"retriever_params": retriever_params,
"timestamp": datetime.datetime.now(datetime.timezone.utc),
}
)
if data.get("isNoneDoc"):
for doc in docs:
doc["source"] = "None"
except Exception as e:
logger.error(
f"/api/search - error: {str(e)} - traceback: {traceback.format_exc()}",
extra={"error": str(e), "traceback": traceback.format_exc()},
)
return bad_request(500, str(e))
return make_response(docs, 200)
def get_attachments_content(attachment_ids, user):
"""
Retrieve content from attachment documents based on their IDs.
Args:
attachment_ids (list): List of attachment document IDs
user (str): User identifier to verify ownership
Returns:
list: List of dictionaries containing attachment content and metadata
"""
if not attachment_ids:
return []
attachments = []
for attachment_id in attachment_ids:
try:
attachment_doc = attachments_collection.find_one(
{"_id": ObjectId(attachment_id), "user": user}
)
if attachment_doc:
attachments.append(attachment_doc)
except Exception as e:
logger.error(
f"Error retrieving attachment {attachment_id}: {e}", exc_info=True
)
return attachments

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import logging
import traceback
from flask import make_response, request
from flask_restx import fields, Resource
from application.api import api
from application.api.answer.routes.base import answer_ns, BaseAnswerResource
from application.api.answer.services.stream_processor import StreamProcessor
logger = logging.getLogger(__name__)
@answer_ns.route("/api/answer")
class AnswerResource(Resource, BaseAnswerResource):
def __init__(self, *args, **kwargs):
Resource.__init__(self, *args, **kwargs)
BaseAnswerResource.__init__(self)
answer_model = answer_ns.model(
"AnswerModel",
{
"question": fields.String(
required=True, description="Question to be asked"
),
"history": fields.List(
fields.String,
required=False,
description="Conversation history (only for new conversations)",
),
"conversation_id": fields.String(
required=False,
description="Existing conversation ID (loads history)",
),
"prompt_id": fields.String(
required=False, default="default", description="Prompt ID"
),
"chunks": fields.Integer(
required=False, default=2, description="Number of chunks"
),
"token_limit": fields.Integer(required=False, description="Token limit"),
"retriever": fields.String(required=False, description="Retriever type"),
"api_key": fields.String(required=False, description="API key"),
"active_docs": fields.String(
required=False, description="Active documents"
),
"isNoneDoc": fields.Boolean(
required=False, description="Flag indicating if no document is used"
),
"save_conversation": fields.Boolean(
required=False,
default=True,
description="Whether to save the conversation",
),
},
)
@api.expect(answer_model)
@api.doc(description="Provide a response based on the question and retriever")
def post(self):
data = request.get_json()
if error := self.validate_request(data):
return error
decoded_token = getattr(request, "decoded_token", None)
processor = StreamProcessor(data, decoded_token)
try:
processor.initialize()
if not processor.decoded_token:
return make_response({"error": "Unauthorized"}, 401)
agent = processor.create_agent()
retriever = processor.create_retriever()
stream = self.complete_stream(
question=data["question"],
agent=agent,
retriever=retriever,
conversation_id=processor.conversation_id,
user_api_key=processor.agent_config.get("user_api_key"),
decoded_token=processor.decoded_token,
isNoneDoc=data.get("isNoneDoc"),
index=None,
should_save_conversation=data.get("save_conversation", True),
)
conversation_id, response, sources, tool_calls, thought, error = (
self.process_response_stream(stream)
)
if error:
return make_response({"error": error}, 400)
result = {
"conversation_id": conversation_id,
"answer": response,
"sources": sources,
"tool_calls": tool_calls,
"thought": thought,
}
except Exception as e:
logger.error(
f"/api/answer - error: {str(e)} - traceback: {traceback.format_exc()}",
extra={"error": str(e), "traceback": traceback.format_exc()},
)
return make_response({"error": str(e)}, 500)
return make_response(result, 200)

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import datetime
import json
import logging
from typing import Any, Dict, Generator, List, Optional
from flask import Response
from flask_restx import Namespace
from application.api.answer.services.conversation_service import ConversationService
from application.core.mongo_db import MongoDB
from application.core.settings import settings
from application.llm.llm_creator import LLMCreator
from application.utils import check_required_fields, get_gpt_model
logger = logging.getLogger(__name__)
answer_ns = Namespace("answer", description="Answer related operations", path="/")
class BaseAnswerResource:
"""Shared base class for answer endpoints"""
def __init__(self):
mongo = MongoDB.get_client()
db = mongo[settings.MONGO_DB_NAME]
self.user_logs_collection = db["user_logs"]
self.gpt_model = get_gpt_model()
self.conversation_service = ConversationService()
def validate_request(
self, data: Dict[str, Any], require_conversation_id: bool = False
) -> Optional[Response]:
"""Common request validation"""
required_fields = ["question"]
if require_conversation_id:
required_fields.append("conversation_id")
if missing_fields := check_required_fields(data, required_fields):
return missing_fields
return None
def complete_stream(
self,
question: str,
agent: Any,
retriever: Any,
conversation_id: Optional[str],
user_api_key: Optional[str],
decoded_token: Dict[str, Any],
isNoneDoc: bool = False,
index: Optional[int] = None,
should_save_conversation: bool = True,
attachment_ids: Optional[List[str]] = None,
agent_id: Optional[str] = None,
is_shared_usage: bool = False,
shared_token: Optional[str] = None,
) -> Generator[str, None, None]:
"""
Generator function that streams the complete conversation response.
Args:
question: The user's question
agent: The agent instance
retriever: The retriever instance
conversation_id: Existing conversation ID
user_api_key: User's API key if any
decoded_token: Decoded JWT token
isNoneDoc: Flag for document-less responses
index: Index of message to update
should_save_conversation: Whether to persist the conversation
attachment_ids: List of attachment IDs
agent_id: ID of agent used
is_shared_usage: Flag for shared agent usage
shared_token: Token for shared agent
Yields:
Server-sent event strings
"""
try:
response_full, thought, source_log_docs, tool_calls = "", "", [], []
for line in agent.gen(query=question, retriever=retriever):
if "answer" in line:
response_full += str(line["answer"])
data = json.dumps({"type": "answer", "answer": line["answer"]})
yield f"data: {data}\n\n"
elif "sources" in line:
truncated_sources = []
source_log_docs = line["sources"]
for source in line["sources"]:
truncated_source = source.copy()
if "text" in truncated_source:
truncated_source["text"] = (
truncated_source["text"][:100].strip() + "..."
)
truncated_sources.append(truncated_source)
if truncated_sources:
data = json.dumps(
{"type": "source", "source": truncated_sources}
)
yield f"data: {data}\n\n"
elif "tool_calls" in line:
tool_calls = line["tool_calls"]
elif "thought" in line:
thought += line["thought"]
data = json.dumps({"type": "thought", "thought": line["thought"]})
yield f"data: {data}\n\n"
elif "type" in line:
data = json.dumps(line)
yield f"data: {data}\n\n"
if isNoneDoc:
for doc in source_log_docs:
doc["source"] = "None"
llm = LLMCreator.create_llm(
settings.LLM_PROVIDER,
api_key=settings.API_KEY,
user_api_key=user_api_key,
decoded_token=decoded_token,
)
if should_save_conversation:
conversation_id = self.conversation_service.save_conversation(
conversation_id,
question,
response_full,
thought,
source_log_docs,
tool_calls,
llm,
self.gpt_model,
decoded_token,
index=index,
api_key=user_api_key,
agent_id=agent_id,
is_shared_usage=is_shared_usage,
shared_token=shared_token,
attachment_ids=attachment_ids,
)
else:
conversation_id = None
# Send conversation ID
data = json.dumps({"type": "id", "id": str(conversation_id)})
yield f"data: {data}\n\n"
# Log the interaction
retriever_params = retriever.get_params()
self.user_logs_collection.insert_one(
{
"action": "stream_answer",
"level": "info",
"user": decoded_token.get("sub"),
"api_key": user_api_key,
"question": question,
"response": response_full,
"sources": source_log_docs,
"retriever_params": retriever_params,
"attachments": attachment_ids,
"timestamp": datetime.datetime.now(datetime.timezone.utc),
}
)
# End of stream
data = json.dumps({"type": "end"})
yield f"data: {data}\n\n"
except Exception as e:
logger.error(f"Error in stream: {str(e)}", exc_info=True)
data = json.dumps(
{
"type": "error",
"error": "Please try again later. We apologize for any inconvenience.",
}
)
yield f"data: {data}\n\n"
return
def process_response_stream(self, stream):
"""Process the stream response for non-streaming endpoint"""
conversation_id = ""
response_full = ""
source_log_docs = []
tool_calls = []
thought = ""
stream_ended = False
for line in stream:
try:
event_data = line.replace("data: ", "").strip()
event = json.loads(event_data)
if event["type"] == "id":
conversation_id = event["id"]
elif event["type"] == "answer":
response_full += event["answer"]
elif event["type"] == "source":
source_log_docs = event["source"]
elif event["type"] == "tool_calls":
tool_calls = event["tool_calls"]
elif event["type"] == "thought":
thought = event["thought"]
elif event["type"] == "error":
logger.error(f"Error from stream: {event['error']}")
return None, None, None, None, event["error"]
elif event["type"] == "end":
stream_ended = True
except (json.JSONDecodeError, KeyError) as e:
logger.warning(f"Error parsing stream event: {e}, line: {line}")
continue
if not stream_ended:
logger.error("Stream ended unexpectedly without an 'end' event.")
return None, None, None, None, "Stream ended unexpectedly"
return (
conversation_id,
response_full,
source_log_docs,
tool_calls,
thought,
None,
)
def error_stream_generate(self, err_response):
data = json.dumps({"type": "error", "error": err_response})
yield f"data: {data}\n\n"

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import logging
import traceback
from flask import make_response, request, Response
from flask_restx import fields, Resource
from application.api import api
from application.api.answer.routes.base import answer_ns, BaseAnswerResource
from application.api.answer.services.stream_processor import StreamProcessor
logger = logging.getLogger(__name__)
@answer_ns.route("/stream")
class StreamResource(Resource, BaseAnswerResource):
def __init__(self, *args, **kwargs):
Resource.__init__(self, *args, **kwargs)
BaseAnswerResource.__init__(self)
stream_model = answer_ns.model(
"StreamModel",
{
"question": fields.String(
required=True, description="Question to be asked"
),
"history": fields.List(
fields.String,
required=False,
description="Conversation history (only for new conversations)",
),
"conversation_id": fields.String(
required=False,
description="Existing conversation ID (loads history)",
),
"prompt_id": fields.String(
required=False, default="default", description="Prompt ID"
),
"chunks": fields.Integer(
required=False, default=2, description="Number of chunks"
),
"token_limit": fields.Integer(required=False, description="Token limit"),
"retriever": fields.String(required=False, description="Retriever type"),
"api_key": fields.String(required=False, description="API key"),
"active_docs": fields.String(
required=False, description="Active documents"
),
"isNoneDoc": fields.Boolean(
required=False, description="Flag indicating if no document is used"
),
"index": fields.Integer(
required=False, description="Index of the query to update"
),
"save_conversation": fields.Boolean(
required=False,
default=True,
description="Whether to save the conversation",
),
"attachments": fields.List(
fields.String, required=False, description="List of attachment IDs"
),
},
)
@api.expect(stream_model)
@api.doc(description="Stream a response based on the question and retriever")
def post(self):
data = request.get_json()
if error := self.validate_request(data, "index" in data):
return error
decoded_token = getattr(request, "decoded_token", None)
processor = StreamProcessor(data, decoded_token)
try:
processor.initialize()
agent = processor.create_agent()
retriever = processor.create_retriever()
return Response(
self.complete_stream(
question=data["question"],
agent=agent,
retriever=retriever,
conversation_id=processor.conversation_id,
user_api_key=processor.agent_config.get("user_api_key"),
decoded_token=processor.decoded_token,
isNoneDoc=data.get("isNoneDoc"),
index=data.get("index"),
should_save_conversation=data.get("save_conversation", True),
attachment_ids=data.get("attachments", []),
agent_id=data.get("agent_id"),
is_shared_usage=processor.is_shared_usage,
shared_token=processor.shared_token,
),
mimetype="text/event-stream",
)
except ValueError as e:
message = "Malformed request body"
logger.error(
f"/stream - error: {message} - specific error: {str(e)} - traceback: {traceback.format_exc()}",
extra={"error": str(e), "traceback": traceback.format_exc()},
)
return Response(
self.error_stream_generate(message),
status=400,
mimetype="text/event-stream",
)
except Exception as e:
logger.error(
f"/stream - error: {str(e)} - traceback: {traceback.format_exc()}",
extra={"error": str(e), "traceback": traceback.format_exc()},
)
return Response(
self.error_stream_generate("Unknown error occurred"),
status=400,
mimetype="text/event-stream",
)

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import logging
from datetime import datetime, timezone
from typing import Any, Dict, List, Optional
from application.core.mongo_db import MongoDB
from application.core.settings import settings
from bson import ObjectId
logger = logging.getLogger(__name__)
class ConversationService:
def __init__(self):
mongo = MongoDB.get_client()
db = mongo[settings.MONGO_DB_NAME]
self.conversations_collection = db["conversations"]
self.agents_collection = db["agents"]
def get_conversation(
self, conversation_id: str, user_id: str
) -> Optional[Dict[str, Any]]:
"""Retrieve a conversation with proper access control"""
if not conversation_id or not user_id:
return None
try:
conversation = self.conversations_collection.find_one(
{
"_id": ObjectId(conversation_id),
"$or": [{"user": user_id}, {"shared_with": user_id}],
}
)
if not conversation:
logger.warning(
f"Conversation not found or unauthorized - ID: {conversation_id}, User: {user_id}"
)
return None
conversation["_id"] = str(conversation["_id"])
return conversation
except Exception as e:
logger.error(f"Error fetching conversation: {str(e)}", exc_info=True)
return None
def save_conversation(
self,
conversation_id: Optional[str],
question: str,
response: str,
thought: str,
sources: List[Dict[str, Any]],
tool_calls: List[Dict[str, Any]],
llm: Any,
gpt_model: str,
decoded_token: Dict[str, Any],
index: Optional[int] = None,
api_key: Optional[str] = None,
agent_id: Optional[str] = None,
is_shared_usage: bool = False,
shared_token: Optional[str] = None,
attachment_ids: Optional[List[str]] = None,
) -> str:
"""Save or update a conversation in the database"""
user_id = decoded_token.get("sub")
if not user_id:
raise ValueError("User ID not found in token")
current_time = datetime.now(timezone.utc)
if conversation_id is not None and index is not None:
# Update existing conversation with new query
result = self.conversations_collection.update_one(
{
"_id": ObjectId(conversation_id),
"user": user_id,
f"queries.{index}": {"$exists": True},
},
{
"$set": {
f"queries.{index}.prompt": question,
f"queries.{index}.response": response,
f"queries.{index}.thought": thought,
f"queries.{index}.sources": sources,
f"queries.{index}.tool_calls": tool_calls,
f"queries.{index}.timestamp": current_time,
f"queries.{index}.attachments": attachment_ids,
}
},
)
if result.matched_count == 0:
raise ValueError("Conversation not found or unauthorized")
self.conversations_collection.update_one(
{
"_id": ObjectId(conversation_id),
"user": user_id,
f"queries.{index}": {"$exists": True},
},
{"$push": {"queries": {"$each": [], "$slice": index + 1}}},
)
return conversation_id
elif conversation_id:
# Append new message to existing conversation
result = self.conversations_collection.update_one(
{"_id": ObjectId(conversation_id), "user": user_id},
{
"$push": {
"queries": {
"prompt": question,
"response": response,
"thought": thought,
"sources": sources,
"tool_calls": tool_calls,
"timestamp": current_time,
"attachments": attachment_ids,
}
}
},
)
if result.matched_count == 0:
raise ValueError("Conversation not found or unauthorized")
return conversation_id
else:
# Create new conversation
messages_summary = [
{
"role": "assistant",
"content": "Summarise following conversation in no more than 3 "
"words, respond ONLY with the summary, use the same "
"language as the user query",
},
{
"role": "user",
"content": "Summarise following conversation in no more than 3 words, "
"respond ONLY with the summary, use the same language as the "
"user query \n\nUser: " + question + "\n\n" + "AI: " + response,
},
]
completion = llm.gen(
model=gpt_model, messages=messages_summary, max_tokens=30
)
conversation_data = {
"user": user_id,
"date": current_time,
"name": completion,
"queries": [
{
"prompt": question,
"response": response,
"thought": thought,
"sources": sources,
"tool_calls": tool_calls,
"timestamp": current_time,
"attachments": attachment_ids,
}
],
}
if api_key:
if agent_id:
conversation_data["agent_id"] = agent_id
if is_shared_usage:
conversation_data["is_shared_usage"] = is_shared_usage
conversation_data["shared_token"] = shared_token
agent = self.agents_collection.find_one({"key": api_key})
if agent:
conversation_data["api_key"] = agent["key"]
result = self.conversations_collection.insert_one(conversation_data)
return str(result.inserted_id)

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import datetime
import json
import logging
import os
from pathlib import Path
from typing import Any, Dict, Optional
from bson.dbref import DBRef
from bson.objectid import ObjectId
from application.agents.agent_creator import AgentCreator
from application.api.answer.services.conversation_service import ConversationService
from application.core.mongo_db import MongoDB
from application.core.settings import settings
from application.retriever.retriever_creator import RetrieverCreator
from application.utils import get_gpt_model, limit_chat_history
logger = logging.getLogger(__name__)
def get_prompt(prompt_id: str, prompts_collection=None) -> str:
"""
Get a prompt by preset name or MongoDB ID
"""
current_dir = Path(__file__).resolve().parents[3]
prompts_dir = current_dir / "prompts"
preset_mapping = {
"default": "chat_combine_default.txt",
"creative": "chat_combine_creative.txt",
"strict": "chat_combine_strict.txt",
"reduce": "chat_reduce_prompt.txt",
}
if prompt_id in preset_mapping:
file_path = os.path.join(prompts_dir, preset_mapping[prompt_id])
try:
with open(file_path, "r") as f:
return f.read()
except FileNotFoundError:
raise FileNotFoundError(f"Prompt file not found: {file_path}")
try:
if prompts_collection is None:
mongo = MongoDB.get_client()
db = mongo[settings.MONGO_DB_NAME]
prompts_collection = db["prompts"]
prompt_doc = prompts_collection.find_one({"_id": ObjectId(prompt_id)})
if not prompt_doc:
raise ValueError(f"Prompt with ID {prompt_id} not found")
return prompt_doc["content"]
except Exception as e:
raise ValueError(f"Invalid prompt ID: {prompt_id}") from e
class StreamProcessor:
def __init__(
self, request_data: Dict[str, Any], decoded_token: Optional[Dict[str, Any]]
):
mongo = MongoDB.get_client()
self.db = mongo[settings.MONGO_DB_NAME]
self.agents_collection = self.db["agents"]
self.attachments_collection = self.db["attachments"]
self.prompts_collection = self.db["prompts"]
self.data = request_data
self.decoded_token = decoded_token
self.initial_user_id = (
self.decoded_token.get("sub") if self.decoded_token is not None else None
)
self.conversation_id = self.data.get("conversation_id")
self.source = (
{"active_docs": self.data["active_docs"]}
if "active_docs" in self.data
else {}
)
self.attachments = []
self.history = []
self.agent_config = {}
self.retriever_config = {}
self.is_shared_usage = False
self.shared_token = None
self.gpt_model = get_gpt_model()
self.conversation_service = ConversationService()
def initialize(self):
"""Initialize all required components for processing"""
self._configure_agent()
self._configure_retriever()
self._load_conversation_history()
self._process_attachments()
def _load_conversation_history(self):
"""Load conversation history either from DB or request"""
if self.conversation_id and self.initial_user_id:
conversation = self.conversation_service.get_conversation(
self.conversation_id, self.initial_user_id
)
if not conversation:
raise ValueError("Conversation not found or unauthorized")
self.history = [
{"prompt": query["prompt"], "response": query["response"]}
for query in conversation.get("queries", [])
]
else:
self.history = limit_chat_history(
json.loads(self.data.get("history", "[]")), gpt_model=self.gpt_model
)
def _process_attachments(self):
"""Process any attachments in the request"""
attachment_ids = self.data.get("attachments", [])
self.attachments = self._get_attachments_content(
attachment_ids, self.initial_user_id
)
def _get_attachments_content(self, attachment_ids, user_id):
"""
Retrieve content from attachment documents based on their IDs.
"""
if not attachment_ids:
return []
attachments = []
for attachment_id in attachment_ids:
try:
attachment_doc = self.attachments_collection.find_one(
{"_id": ObjectId(attachment_id), "user": user_id}
)
if attachment_doc:
attachments.append(attachment_doc)
except Exception as e:
logger.error(
f"Error retrieving attachment {attachment_id}: {e}", exc_info=True
)
return attachments
def _get_agent_key(self, agent_id: Optional[str], user_id: Optional[str]) -> tuple:
"""Get API key for agent with access control"""
if not agent_id:
return None, False, None
try:
agent = self.agents_collection.find_one({"_id": ObjectId(agent_id)})
if agent is None:
raise Exception("Agent not found")
is_owner = agent.get("user") == user_id
is_shared_with_user = agent.get(
"shared_publicly", False
) or user_id in agent.get("shared_with", [])
if not (is_owner or is_shared_with_user):
raise Exception("Unauthorized access to the agent")
if is_owner:
self.agents_collection.update_one(
{"_id": ObjectId(agent_id)},
{
"$set": {
"lastUsedAt": datetime.datetime.now(datetime.timezone.utc)
}
},
)
return str(agent["key"]), not is_owner, agent.get("shared_token")
except Exception as e:
logger.error(f"Error in get_agent_key: {str(e)}", exc_info=True)
raise
def _get_data_from_api_key(self, api_key: str) -> Dict[str, Any]:
data = self.agents_collection.find_one({"key": api_key})
if not data:
raise Exception("Invalid API Key, please generate a new key", 401)
source = data.get("source")
if isinstance(source, DBRef):
source_doc = self.db.dereference(source)
data["source"] = str(source_doc["_id"])
data["retriever"] = source_doc.get("retriever", data.get("retriever"))
else:
data["source"] = {}
return data
def _configure_agent(self):
"""Configure the agent based on request data"""
agent_id = self.data.get("agent_id")
self.agent_key, self.is_shared_usage, self.shared_token = self._get_agent_key(
agent_id, self.initial_user_id
)
api_key = self.data.get("api_key")
if api_key:
data_key = self._get_data_from_api_key(api_key)
self.agent_config.update(
{
"prompt_id": data_key.get("prompt_id", "default"),
"agent_type": data_key.get("agent_type", settings.AGENT_NAME),
"user_api_key": api_key,
}
)
self.initial_user_id = data_key.get("user")
self.decoded_token = {"sub": data_key.get("user")}
elif self.agent_key:
data_key = self._get_data_from_api_key(self.agent_key)
self.agent_config.update(
{
"prompt_id": data_key.get("prompt_id", "default"),
"agent_type": data_key.get("agent_type", settings.AGENT_NAME),
"user_api_key": self.agent_key,
}
)
self.decoded_token = (
self.decoded_token
if self.is_shared_usage
else {"sub": data_key.get("user")}
)
else:
self.agent_config.update(
{
"prompt_id": self.data.get("prompt_id", "default"),
"agent_type": settings.AGENT_NAME,
"user_api_key": None,
}
)
def _configure_retriever(self):
"""Configure the retriever based on request data"""
self.retriever_config = {
"retriever_name": self.data.get("retriever", "classic"),
"chunks": int(self.data.get("chunks", 2)),
"token_limit": self.data.get("token_limit", settings.DEFAULT_MAX_HISTORY),
}
if "isNoneDoc" in self.data and self.data["isNoneDoc"]:
self.retriever_config["chunks"] = 0
def create_agent(self):
"""Create and return the configured agent"""
return AgentCreator.create_agent(
self.agent_config["agent_type"],
endpoint="stream",
llm_name=settings.LLM_PROVIDER,
gpt_model=self.gpt_model,
api_key=settings.API_KEY,
user_api_key=self.agent_config["user_api_key"],
prompt=get_prompt(self.agent_config["prompt_id"], self.prompts_collection),
chat_history=self.history,
decoded_token=self.decoded_token,
attachments=self.attachments,
)
def create_retriever(self):
"""Create and return the configured retriever"""
return RetrieverCreator.create_retriever(
self.retriever_config["retriever_name"],
source=self.source,
chat_history=self.history,
prompt=get_prompt(self.agent_config["prompt_id"], self.prompts_collection),
chunks=self.retriever_config["chunks"],
token_limit=self.retriever_config["token_limit"],
gpt_model=self.gpt_model,
user_api_key=self.agent_config["user_api_key"],
decoded_token=self.decoded_token,
)

View File

@@ -35,7 +35,7 @@ from application.api.user.tasks import (
)
from application.core.mongo_db import MongoDB
from application.core.settings import settings
from application.extensions import api
from application.api import api
from application.storage.storage_creator import StorageCreator
from application.tts.google_tts import GoogleTTS
from application.utils import (
@@ -3746,14 +3746,18 @@ class StoreAttachment(Resource):
"AttachmentModel",
{
"file": fields.Raw(required=True, description="File to upload"),
"api_key": fields.String(
required=False, description="API key (optional)"
),
},
)
)
@api.doc(description="Stores a single attachment without vectorization or training")
@api.doc(
description="Stores a single attachment without vectorization or training. Supports user or API key authentication."
)
def post(self):
decoded_token = request.decoded_token
if not decoded_token:
return make_response(jsonify({"success": False}), 401)
decoded_token = getattr(request, "decoded_token", None)
api_key = request.form.get("api_key") or request.args.get("api_key")
file = request.files.get("file")
if not file or file.filename == "":
@@ -3761,7 +3765,21 @@ class StoreAttachment(Resource):
jsonify({"status": "error", "message": "Missing file"}),
400,
)
user = safe_filename(decoded_token.get("sub"))
user = None
if decoded_token:
user = safe_filename(decoded_token.get("sub"))
elif api_key:
agent = agents_collection.find_one({"key": api_key})
if not agent:
return make_response(
jsonify({"success": False, "message": "Invalid API key"}), 401
)
user = safe_filename(agent.get("user"))
else:
return make_response(
jsonify({"success": False, "message": "Authentication required"}), 401
)
try:
attachment_id = ObjectId()