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from typing import List, Union, Optional
from indexify_extractor_sdk import Content, Extractor, Feature
from pydantic import BaseModel, Field
import os
import base64
from openai import OpenAI
from pdf2image import convert_from_path
import tempfile
import mimetypes
class OAIExtractorConfig(BaseModel):
model_name: Optional[str] = Field(default='gpt-3.5-turbo')
key: Optional[str] = Field(default=None)
prompt: str = Field(default='You are a helpful assistant.')
query: Optional[str] = Field(default=None)
class OAIExtractor(Extractor):
name = "tensorlake/openai"
description = "An extractor that let's you use LLMs from OpenAI."
system_dependencies = []
input_mime_types = ["text/plain", "application/pdf", "image/jpeg", "image/png"]
def __init__(self):
super(OAIExtractor, self).__init__()
def extract(self, content: Content, params: OAIExtractorConfig) -> List[Union[Feature, Content]]:
contents = []
model_name = params.model_name
key = params.key
prompt = params.prompt
query = params.query
if content.content_type in ["application/pdf"]:
with tempfile.NamedTemporaryFile(delete=False, suffix=".pdf") as temp_file:
temp_file.write(content.data)
file_path = temp_file.name
images = convert_from_path(file_path)
image_files = []
for i in range(len(images)):
with tempfile.NamedTemporaryFile(delete=False, suffix=".jpg") as temp_image_file:
images[i].save(temp_image_file.name, 'JPEG')
image_files.append(temp_image_file.name)
elif content.content_type in ["image/jpeg", "image/png"]:
image_files = []
suffix = mimetypes.guess_extension(content.content_type)
with tempfile.NamedTemporaryFile(delete=False, suffix=suffix) as temp_image_file:
temp_image_file.write(content.data)
file_path = temp_image_file.name
image_files.append(file_path)
else:
text = content.data.decode("utf-8")
if query is None:
query = text
file_path = None
def encode_image(image_path):
with open(image_path, "rb") as image_file:
return base64.b64encode(image_file.read()).decode('utf-8')
if ('OPENAI_API_KEY' not in os.environ) and (key is None):
response_content = "The OPENAI_API_KEY environment variable is not present."
else:
if ('OPENAI_API_KEY' in os.environ) and (key is None):
client = OpenAI(api_key=os.environ["OPENAI_API_KEY"])
else:
client = OpenAI(api_key=key)
if file_path:
encoded_images = [encode_image(image_path) for image_path in image_files]
messages_content = [ { "role": "user", "content": [ { "type": "text", "text": prompt, } ] + [ { "type": "image_url", "image_url": { "url": f"data:image/jpeg;base64,{encoded_image}", }, } for encoded_image in encoded_images ], } ]
else:
messages_content = [ {"role": "system", "content": prompt}, {"role": "user", "content": query} ]
response = client.chat.completions.create( model=model_name, messages=messages_content )
response_content = response.choices[0].message.content
contents.append(Content.from_text(response_content))
return contents
def sample_input(self) -> Content:
return Content.from_text("Hello world, I am a good boy.") |