mirror of
https://github.com/open-webui/open-webui
synced 2025-06-26 18:26:48 +00:00
Update mistral.py
This commit is contained in:
parent
86e24bb4aa
commit
bf193dfb5d
@ -1,8 +1,12 @@
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import requests
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import aiohttp
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import asyncio
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import logging
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import os
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import sys
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import time
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from typing import List, Dict, Any
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from contextlib import asynccontextmanager
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from langchain_core.documents import Document
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from open_webui.env import SRC_LOG_LEVELS, GLOBAL_LOG_LEVEL
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@ -14,18 +18,29 @@ log.setLevel(SRC_LOG_LEVELS["RAG"])
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class MistralLoader:
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"""
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Enhanced Mistral OCR loader with both sync and async support.
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Loads documents by processing them through the Mistral OCR API.
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"""
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BASE_API_URL = "https://api.mistral.ai/v1"
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def __init__(self, api_key: str, file_path: str):
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def __init__(
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self,
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api_key: str,
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file_path: str,
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timeout: int = 300, # 5 minutes default
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max_retries: int = 3,
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enable_debug_logging: bool = False
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):
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"""
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Initializes the loader.
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Initializes the loader with enhanced features.
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Args:
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api_key: Your Mistral API key.
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file_path: The local path to the PDF file to process.
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timeout: Request timeout in seconds.
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max_retries: Maximum number of retry attempts.
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enable_debug_logging: Enable detailed debug logs.
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"""
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if not api_key:
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raise ValueError("API key cannot be empty.")
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@ -34,7 +49,23 @@ class MistralLoader:
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self.api_key = api_key
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self.file_path = file_path
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self.headers = {"Authorization": f"Bearer {self.api_key}"}
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self.timeout = timeout
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self.max_retries = max_retries
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self.debug = enable_debug_logging
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# Pre-compute file info for performance
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self.file_name = os.path.basename(file_path)
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self.file_size = os.path.getsize(file_path)
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self.headers = {
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"Authorization": f"Bearer {self.api_key}",
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"User-Agent": "OpenWebUI-MistralLoader/2.0"
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}
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def _debug_log(self, message: str, *args) -> None:
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"""Conditional debug logging for performance."""
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if self.debug:
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log.debug(message, *args)
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def _handle_response(self, response: requests.Response) -> Dict[str, Any]:
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"""Checks response status and returns JSON content."""
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@ -54,24 +85,81 @@ class MistralLoader:
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log.error(f"JSON decode error: {json_err} - Response: {response.text}")
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raise # Re-raise after logging
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async def _handle_response_async(self, response: aiohttp.ClientResponse) -> Dict[str, Any]:
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"""Async version of response handling with better error info."""
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try:
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response.raise_for_status()
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# Check content type
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content_type = response.headers.get('content-type', '')
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if 'application/json' not in content_type:
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if response.status == 204:
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return {}
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text = await response.text()
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raise ValueError(f"Unexpected content type: {content_type}, body: {text[:200]}...")
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return await response.json()
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except aiohttp.ClientResponseError as e:
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error_text = await response.text() if response else "No response"
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log.error(f"HTTP {e.status}: {e.message} - Response: {error_text[:500]}")
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raise
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except aiohttp.ClientError as e:
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log.error(f"Client error: {e}")
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raise
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except Exception as e:
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log.error(f"Unexpected error processing response: {e}")
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raise
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def _retry_request_sync(self, request_func, *args, **kwargs):
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"""Synchronous retry logic with exponential backoff."""
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for attempt in range(self.max_retries):
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try:
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return request_func(*args, **kwargs)
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except (requests.exceptions.RequestException, Exception) as e:
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if attempt == self.max_retries - 1:
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raise
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wait_time = (2 ** attempt) + 0.5
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log.warning(f"Request failed (attempt {attempt + 1}/{self.max_retries}): {e}. Retrying in {wait_time}s...")
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time.sleep(wait_time)
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async def _retry_request_async(self, request_func, *args, **kwargs):
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"""Async retry logic with exponential backoff."""
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for attempt in range(self.max_retries):
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try:
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return await request_func(*args, **kwargs)
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except (aiohttp.ClientError, asyncio.TimeoutError) as e:
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if attempt == self.max_retries - 1:
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raise
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wait_time = (2 ** attempt) + 0.5
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log.warning(f"Request failed (attempt {attempt + 1}/{self.max_retries}): {e}. Retrying in {wait_time}s...")
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await asyncio.sleep(wait_time)
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def _upload_file(self) -> str:
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"""Uploads the file to Mistral for OCR processing."""
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"""Uploads the file to Mistral for OCR processing (sync version)."""
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log.info("Uploading file to Mistral API")
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url = f"{self.BASE_API_URL}/files"
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file_name = os.path.basename(self.file_path)
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try:
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def upload_request():
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with open(self.file_path, "rb") as f:
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files = {"file": (file_name, f, "application/pdf")}
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data = {"purpose": "ocr"}
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upload_headers = self.headers.copy() # Avoid modifying self.headers
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response = requests.post(
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url, headers=upload_headers, files=files, data=data
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url,
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headers=self.headers,
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files=files,
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data=data,
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timeout=self.timeout
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)
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response_data = self._handle_response(response)
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return self._handle_response(response)
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try:
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response_data = self._retry_request_sync(upload_request)
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file_id = response_data.get("id")
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if not file_id:
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raise ValueError("File ID not found in upload response.")
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@ -81,16 +169,63 @@ class MistralLoader:
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log.error(f"Failed to upload file: {e}")
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raise
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async def _upload_file_async(self, session: aiohttp.ClientSession) -> str:
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"""Async file upload with streaming for better memory efficiency."""
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url = f"{self.BASE_API_URL}/files"
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async def upload_request():
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# Create multipart writer for streaming upload
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writer = aiohttp.MultipartWriter('form-data')
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# Add purpose field
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purpose_part = writer.append('ocr')
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purpose_part.set_content_disposition('form-data', name='purpose')
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# Add file part with streaming
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file_part = writer.append_payload(aiohttp.streams.FilePayload(
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self.file_path,
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filename=self.file_name,
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content_type='application/pdf'
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))
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file_part.set_content_disposition('form-data', name='file', filename=self.file_name)
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self._debug_log(f"Uploading file: {self.file_name} ({self.file_size:,} bytes)")
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async with session.post(
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url,
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data=writer,
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headers=self.headers,
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timeout=aiohttp.ClientTimeout(total=self.timeout)
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) as response:
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return await self._handle_response_async(response)
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response_data = await self._retry_request_async(upload_request)
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file_id = response_data.get("id")
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if not file_id:
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raise ValueError("File ID not found in upload response.")
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log.info(f"File uploaded successfully. File ID: {file_id}")
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return file_id
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def _get_signed_url(self, file_id: str) -> str:
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"""Retrieves a temporary signed URL for the uploaded file."""
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"""Retrieves a temporary signed URL for the uploaded file (sync version)."""
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log.info(f"Getting signed URL for file ID: {file_id}")
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url = f"{self.BASE_API_URL}/files/{file_id}/url"
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params = {"expiry": 1}
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signed_url_headers = {**self.headers, "Accept": "application/json"}
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def url_request():
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response = requests.get(
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url,
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headers=signed_url_headers,
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params=params,
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timeout=self.timeout
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)
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return self._handle_response(response)
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try:
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response = requests.get(url, headers=signed_url_headers, params=params)
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response_data = self._handle_response(response)
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response_data = self._retry_request_sync(url_request)
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signed_url = response_data.get("url")
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if not signed_url:
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raise ValueError("Signed URL not found in response.")
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@ -100,8 +235,37 @@ class MistralLoader:
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log.error(f"Failed to get signed URL: {e}")
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raise
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async def _get_signed_url_async(self, session: aiohttp.ClientSession, file_id: str) -> str:
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"""Async signed URL retrieval."""
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url = f"{self.BASE_API_URL}/files/{file_id}/url"
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params = {"expiry": 1}
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headers = {
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**self.headers,
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"Accept": "application/json"
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}
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async def url_request():
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self._debug_log(f"Getting signed URL for file ID: {file_id}")
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async with session.get(
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url,
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headers=headers,
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params=params,
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timeout=aiohttp.ClientTimeout(total=self.timeout)
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) as response:
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return await self._handle_response_async(response)
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response_data = await self._retry_request_async(url_request)
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signed_url = response_data.get("url")
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if not signed_url:
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raise ValueError("Signed URL not found in response.")
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self._debug_log("Signed URL received successfully")
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return signed_url
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def _process_ocr(self, signed_url: str) -> Dict[str, Any]:
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"""Sends the signed URL to the OCR endpoint for processing."""
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"""Sends the signed URL to the OCR endpoint for processing (sync version)."""
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log.info("Processing OCR via Mistral API")
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url = f"{self.BASE_API_URL}/ocr"
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ocr_headers = {
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@ -118,43 +282,179 @@ class MistralLoader:
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"include_image_base64": False,
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}
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def ocr_request():
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response = requests.post(
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url,
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headers=ocr_headers,
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json=payload,
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timeout=self.timeout
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)
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return self._handle_response(response)
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try:
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response = requests.post(url, headers=ocr_headers, json=payload)
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ocr_response = self._handle_response(response)
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ocr_response = self._retry_request_sync(ocr_request)
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log.info("OCR processing done.")
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log.debug("OCR response: %s", ocr_response)
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self._debug_log("OCR response: %s", ocr_response)
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return ocr_response
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except Exception as e:
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log.error(f"Failed during OCR processing: {e}")
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raise
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async def _process_ocr_async(self, session: aiohttp.ClientSession, signed_url: str) -> Dict[str, Any]:
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"""Async OCR processing with timing metrics."""
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url = f"{self.BASE_API_URL}/ocr"
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headers = {
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**self.headers,
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"Content-Type": "application/json",
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"Accept": "application/json",
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}
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payload = {
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"model": "mistral-ocr-latest",
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"document": {
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"type": "document_url",
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"document_url": signed_url,
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},
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"include_image_base64": False,
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}
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async def ocr_request():
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log.info("Starting OCR processing via Mistral API")
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start_time = time.time()
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async with session.post(
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url,
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json=payload,
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headers=headers,
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timeout=aiohttp.ClientTimeout(total=self.timeout)
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) as response:
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ocr_response = await self._handle_response_async(response)
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processing_time = time.time() - start_time
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log.info(f"OCR processing completed in {processing_time:.2f}s")
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return ocr_response
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return await self._retry_request_async(ocr_request)
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def _delete_file(self, file_id: str) -> None:
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"""Deletes the file from Mistral storage."""
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"""Deletes the file from Mistral storage (sync version)."""
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log.info(f"Deleting uploaded file ID: {file_id}")
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url = f"{self.BASE_API_URL}/files/{file_id}"
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# No specific Accept header needed, default or Authorization is usually sufficient
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try:
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response = requests.delete(url, headers=self.headers)
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delete_response = self._handle_response(
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response
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) # Check status, ignore response body unless needed
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log.info(
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f"File deleted successfully: {delete_response}"
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) # Log the response if available
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response = requests.delete(url, headers=self.headers, timeout=30)
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delete_response = self._handle_response(response)
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log.info(f"File deleted successfully: {delete_response}")
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except Exception as e:
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# Log error but don't necessarily halt execution if deletion fails
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log.error(f"Failed to delete file ID {file_id}: {e}")
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# Depending on requirements, you might choose to raise the error here
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async def _delete_file_async(self, session: aiohttp.ClientSession, file_id: str) -> None:
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"""Async file deletion with error tolerance."""
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try:
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async def delete_request():
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self._debug_log(f"Deleting file ID: {file_id}")
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async with session.delete(
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url=f"{self.BASE_API_URL}/files/{file_id}",
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headers=self.headers,
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timeout=aiohttp.ClientTimeout(total=30) # Shorter timeout for cleanup
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) as response:
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return await self._handle_response_async(response)
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await self._retry_request_async(delete_request)
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self._debug_log(f"File {file_id} deleted successfully")
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except Exception as e:
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# Don't fail the entire process if cleanup fails
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log.warning(f"Failed to delete file ID {file_id}: {e}")
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@asynccontextmanager
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async def _get_session(self):
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"""Context manager for HTTP session with optimized settings."""
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connector = aiohttp.TCPConnector(
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limit=10, # Total connection limit
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limit_per_host=5, # Per-host connection limit
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ttl_dns_cache=300, # DNS cache TTL
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use_dns_cache=True,
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keepalive_timeout=30,
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enable_cleanup_closed=True
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)
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async with aiohttp.ClientSession(
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connector=connector,
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timeout=aiohttp.ClientTimeout(total=self.timeout),
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headers={"User-Agent": "OpenWebUI-MistralLoader/2.0"}
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) as session:
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yield session
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def _process_results(self, ocr_response: Dict[str, Any]) -> List[Document]:
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"""Process OCR results into Document objects with enhanced metadata."""
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pages_data = ocr_response.get("pages")
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if not pages_data:
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log.warning("No pages found in OCR response.")
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return [Document(page_content="No text content found", metadata={"error": "no_pages"})]
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documents = []
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total_pages = len(pages_data)
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skipped_pages = 0
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for page_data in pages_data:
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page_content = page_data.get("markdown")
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page_index = page_data.get("index") # API uses 0-based index
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if page_content is not None and page_index is not None:
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# Clean up content efficiently
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cleaned_content = page_content.strip() if isinstance(page_content, str) else str(page_content)
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if cleaned_content: # Only add non-empty pages
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documents.append(
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Document(
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page_content=cleaned_content,
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metadata={
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"page": page_index, # 0-based index from API
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"page_label": page_index + 1, # 1-based label for convenience
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"total_pages": total_pages,
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"file_name": self.file_name,
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"file_size": self.file_size,
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"processing_engine": "mistral-ocr"
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},
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)
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)
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else:
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skipped_pages += 1
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self._debug_log(f"Skipping empty page {page_index}")
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else:
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skipped_pages += 1
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self._debug_log(f"Skipping page due to missing 'markdown' or 'index'. Data: {page_data}")
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if skipped_pages > 0:
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log.info(f"Processed {len(documents)} pages, skipped {skipped_pages} empty/invalid pages")
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if not documents:
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# Case where pages existed but none had valid markdown/index
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log.warning("OCR response contained pages, but none had valid content/index.")
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return [
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Document(
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page_content="No valid text content found in document",
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metadata={"error": "no_valid_pages", "total_pages": total_pages}
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)
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]
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return documents
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def load(self) -> List[Document]:
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"""
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Executes the full OCR workflow: upload, get URL, process OCR, delete file.
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Synchronous version for backward compatibility.
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Returns:
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A list of Document objects, one for each page processed.
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"""
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file_id = None
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start_time = time.time()
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try:
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# 1. Upload file
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file_id = self._upload_file()
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@ -166,53 +466,21 @@ class MistralLoader:
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ocr_response = self._process_ocr(signed_url)
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# 4. Process results
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pages_data = ocr_response.get("pages")
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if not pages_data:
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log.warning("No pages found in OCR response.")
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return [Document(page_content="No text content found", metadata={})]
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documents = []
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total_pages = len(pages_data)
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for page_data in pages_data:
|
||||
page_content = page_data.get("markdown")
|
||||
page_index = page_data.get("index") # API uses 0-based index
|
||||
|
||||
if page_content is not None and page_index is not None:
|
||||
documents.append(
|
||||
Document(
|
||||
page_content=page_content,
|
||||
metadata={
|
||||
"page": page_index, # 0-based index from API
|
||||
"page_label": page_index
|
||||
+ 1, # 1-based label for convenience
|
||||
"total_pages": total_pages,
|
||||
# Add other relevant metadata from page_data if available/needed
|
||||
# e.g., page_data.get('width'), page_data.get('height')
|
||||
},
|
||||
)
|
||||
)
|
||||
else:
|
||||
log.warning(
|
||||
f"Skipping page due to missing 'markdown' or 'index'. Data: {page_data}"
|
||||
)
|
||||
|
||||
if not documents:
|
||||
# Case where pages existed but none had valid markdown/index
|
||||
log.warning(
|
||||
"OCR response contained pages, but none had valid content/index."
|
||||
)
|
||||
return [
|
||||
Document(
|
||||
page_content="No text content found in valid pages", metadata={}
|
||||
)
|
||||
]
|
||||
|
||||
documents = self._process_results(ocr_response)
|
||||
|
||||
total_time = time.time() - start_time
|
||||
log.info(f"Sync OCR workflow completed in {total_time:.2f}s, produced {len(documents)} documents")
|
||||
|
||||
return documents
|
||||
|
||||
except Exception as e:
|
||||
log.error(f"An error occurred during the loading process: {e}")
|
||||
# Return an empty list or a specific error document on failure
|
||||
return [Document(page_content=f"Error during processing: {e}", metadata={})]
|
||||
total_time = time.time() - start_time
|
||||
log.error(f"An error occurred during the loading process after {total_time:.2f}s: {e}")
|
||||
# Return an error document on failure
|
||||
return [Document(
|
||||
page_content=f"Error during processing: {e}",
|
||||
metadata={"error": "processing_failed", "file_name": self.file_name}
|
||||
)]
|
||||
finally:
|
||||
# 5. Delete file (attempt even if prior steps failed after upload)
|
||||
if file_id:
|
||||
@ -220,6 +488,88 @@ class MistralLoader:
|
||||
self._delete_file(file_id)
|
||||
except Exception as del_e:
|
||||
# Log deletion error, but don't overwrite original error if one occurred
|
||||
log.error(
|
||||
f"Cleanup error: Could not delete file ID {file_id}. Reason: {del_e}"
|
||||
)
|
||||
log.error(f"Cleanup error: Could not delete file ID {file_id}. Reason: {del_e}")
|
||||
|
||||
async def load_async(self) -> List[Document]:
|
||||
"""
|
||||
Asynchronous OCR workflow execution with optimized performance.
|
||||
|
||||
Returns:
|
||||
A list of Document objects, one for each page processed.
|
||||
"""
|
||||
file_id = None
|
||||
start_time = time.time()
|
||||
|
||||
try:
|
||||
async with self._get_session() as session:
|
||||
# 1. Upload file with streaming
|
||||
file_id = await self._upload_file_async(session)
|
||||
|
||||
# 2. Get signed URL
|
||||
signed_url = await self._get_signed_url_async(session, file_id)
|
||||
|
||||
# 3. Process OCR
|
||||
ocr_response = await self._process_ocr_async(session, signed_url)
|
||||
|
||||
# 4. Process results
|
||||
documents = self._process_results(ocr_response)
|
||||
|
||||
total_time = time.time() - start_time
|
||||
log.info(f"Async OCR workflow completed in {total_time:.2f}s, produced {len(documents)} documents")
|
||||
|
||||
return documents
|
||||
|
||||
except Exception as e:
|
||||
total_time = time.time() - start_time
|
||||
log.error(f"Async OCR workflow failed after {total_time:.2f}s: {e}")
|
||||
return [Document(
|
||||
page_content=f"Error during OCR processing: {e}",
|
||||
metadata={"error": "processing_failed", "file_name": self.file_name}
|
||||
)]
|
||||
finally:
|
||||
# 5. Cleanup - always attempt file deletion
|
||||
if file_id:
|
||||
try:
|
||||
async with self._get_session() as session:
|
||||
await self._delete_file_async(session, file_id)
|
||||
except Exception as cleanup_error:
|
||||
log.error(f"Cleanup failed for file ID {file_id}: {cleanup_error}")
|
||||
|
||||
@staticmethod
|
||||
async def load_multiple_async(loaders: List['MistralLoader']) -> List[List[Document]]:
|
||||
"""
|
||||
Process multiple files concurrently for maximum performance.
|
||||
|
||||
Args:
|
||||
loaders: List of MistralLoader instances
|
||||
|
||||
Returns:
|
||||
List of document lists, one for each loader
|
||||
"""
|
||||
if not loaders:
|
||||
return []
|
||||
|
||||
log.info(f"Starting concurrent processing of {len(loaders)} files")
|
||||
start_time = time.time()
|
||||
|
||||
# Process all files concurrently
|
||||
tasks = [loader.load_async() for loader in loaders]
|
||||
results = await asyncio.gather(*tasks, return_exceptions=True)
|
||||
|
||||
# Handle any exceptions in results
|
||||
processed_results = []
|
||||
for i, result in enumerate(results):
|
||||
if isinstance(result, Exception):
|
||||
log.error(f"File {i} failed: {result}")
|
||||
processed_results.append([Document(
|
||||
page_content=f"Error processing file: {result}",
|
||||
metadata={"error": "batch_processing_failed", "file_index": i}
|
||||
)])
|
||||
else:
|
||||
processed_results.append(result)
|
||||
|
||||
total_time = time.time() - start_time
|
||||
total_docs = sum(len(docs) for docs in processed_results)
|
||||
log.info(f"Batch processing completed in {total_time:.2f}s, produced {total_docs} total documents")
|
||||
|
||||
return processed_results
|
||||
|
Loading…
Reference in New Issue
Block a user