import os
from typing import (
Any,
Union,
)
import zipfile
import streamlit as st
from streamlit.runtime.uploaded_file_manager import (
UploadedFile,
UploadedFileRec,
UploadedFileManager,
)
from streamlit.runtime.scriptrunner import get_script_run_ctx
from supabase.client import Client
from langchain.vectorstores.supabase import SupabaseVectorStore
from components_keys import ComponentsKeys
from loaders.audio import process_audio
from loaders.txt import process_txt
from loaders.csv import process_csv
from loaders.markdown import process_markdown
from loaders.pdf import process_pdf
from loaders.html import (
create_html_file,
delete_tempfile,
get_html,
process_html,
)
from loaders.powerpoint import process_powerpoint
from loaders.docx import process_docx
from utils import compute_sha1_from_content
ctx = get_script_run_ctx()
manager = UploadedFileManager()
file_processors = {
".txt": process_txt,
".csv": process_csv,
".md": process_markdown,
".markdown": process_markdown,
".m4a": process_audio,
".mp3": process_audio,
".webm": process_audio,
".mp4": process_audio,
".mpga": process_audio,
".wav": process_audio,
".mpeg": process_audio,
".pdf": process_pdf,
".html": process_html,
".pptx": process_powerpoint,
".docx": process_docx
}
def file_uploader(supabase, vector_store):
# Omit zip file support if the `st.secrets.self_hosted` != "true" because
# a zip file can consist of multiple files so the limit on 1 file uploaded
# at a time in the demo can be circumvented.
accepted_file_extensions = list(file_processors.keys())
accept_multiple_files = st.secrets.self_hosted == "true"
if accept_multiple_files:
accepted_file_extensions += [".zip"]
files = st.file_uploader(
"**Upload a file**",
accept_multiple_files=accept_multiple_files,
type=accepted_file_extensions,
key=ComponentsKeys.FILE_UPLOADER,
)
if st.secrets.self_hosted == "false":
st.markdown("**In demo mode, the max file size is 1MB**")
if st.button("Add to Database"):
# Single file upload
if isinstance(files, UploadedFile):
filter_file(files, supabase, vector_store)
# Multiple files upload
elif isinstance(files, list):
for file in files:
filter_file(file, supabase, vector_store)
def file_already_exists(supabase, file):
file_sha1 = compute_sha1_from_content(file.getvalue())
response = supabase.table("documents").select("id").eq("metadata->>file_sha1", file_sha1).execute()
return len(response.data) > 0
def file_to_uploaded_file(file: Any) -> Union[None, UploadedFile]:
"""Convert a file to a streamlit `UploadedFile` object.
This allows us to unzip files and treat them the same way
streamlit treats files uploaded through the file uploader.
Parameters
---------
file : Any
The file. Can be any file supported by this app.
Returns
-------
Union[None, UploadedFile]
The file converted to a streamlit `UploadedFile` object.
Returns `None` if the script context cannot be grabbed.
"""
if ctx is None:
print("script context not found, skipping uploading file:", file.name)
return
file_extension = os.path.splitext(file.name)[-1]
file_name = file.name
file_data = file.read()
# The file manager will automatically assign an ID so pass `None`
# Reference: https://github.com/streamlit/streamlit/blob/9a6ce804b7977bdc1f18906d1672c45f9a9b3398/lib/streamlit/runtime/uploaded_file_manager.py#LL98C6-L98C6
uploaded_file_rec = UploadedFileRec(None, file_name, file_extension, file_data)
uploaded_file_rec = manager.add_file(
ctx.session_id,
ComponentsKeys.FILE_UPLOADER,
uploaded_file_rec,
)
return UploadedFile(uploaded_file_rec)
def filter_zip_file(
file: UploadedFile,
supabase: Client,
vector_store: SupabaseVectorStore,
) -> None:
"""Unzip the zip file then filter each unzipped file.
Parameters
----------
file : UploadedFile
The uploaded file from the file uploader.
supabase : Client
The supabase client.
vector_store : SupabaseVectorStore
The vector store in the database.
"""
with zipfile.ZipFile(file, "r") as z:
unzipped_files = z.namelist()
for unzipped_file in unzipped_files:
with z.open(unzipped_file, "r") as f:
filter_file(f, supabase, vector_store)
def filter_file(file, supabase, vector_store):
# Streamlit file uploads are of type `UploadedFile` which has the
# necessary methods and attributes for this app to work.
if not isinstance(file, UploadedFile):
file = file_to_uploaded_file(file)
file_extension = os.path.splitext(file.name)[-1]
if file_extension == ".zip":
filter_zip_file(file, supabase, vector_store)
return True
if file_already_exists(supabase, file):
st.write(f"😎 {file.name} is already in the database.")
return False
if file.size < 1:
st.write(f"💨 {file.name} is empty.")
return False
if file_extension in file_processors:
if st.secrets.self_hosted == "false":
file_processors[file_extension](vector_store, file, stats_db=supabase)
else:
file_processors[file_extension](vector_store, file, stats_db=None)
st.write(f"✅ {file.name} ")
return True
st.write(f"❌ {file.name} is not a valid file type.")
return False
def url_uploader(supabase, vector_store):
url = st.text_area("**Add an url**",placeholder="https://meraGPT.com")
button = st.button("Add the URL to the database")
if button:
if not st.session_state["overused"]:
html = get_html(url)
if html:
st.write(f"Getting content ... {url} ")
try:
file, temp_file_path = create_html_file(url, html)
except UnicodeEncodeError as e:
st.write(f"❌ Error encoding character: {e}")
file, temp_file_path = create_html_file(url, html)
ret = filter_file(file, supabase, vector_store)
delete_tempfile(temp_file_path, url, ret)
else:
st.write(f"❌ Failed to access to {url} .")
else:
st.write("You have reached your daily limit. Please come back later or self host the solution.")