87 lines
2.7 KiB
Python
87 lines
2.7 KiB
Python
import json
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import asyncio
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import os
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import aiofiles
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from hashlib import sha256
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from base58 import b58encode
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from datetime import datetime, timedelta
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from httpx import AsyncClient
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from app.core.logger import make_log
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from app.core._config import PROJECT_HOST, UPLOADS_DIR
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from app.core._crypto.signer import Signer
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from app.core._secrets import hot_seed
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from app.core.models.node_storage import StoredContent
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async def create_new_content(
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db_session, type: str, content_bin: bytes, **kwargs
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) -> [StoredContent, bool]: # return content, is_new
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assert type.startswith("local/"), "Invalid type"
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kwargs = {k: v for k, v in kwargs.items() if not (k in ['id', 'content_id', 'created', 'onchain_index'])}
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content_hash_bin = sha256(content_bin).digest()
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content_hash_b58 = b58encode(content_hash_bin).decode()
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new_content = db_session.query(StoredContent).filter(StoredContent.hash == content_hash_b58).first()
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if new_content:
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return new_content, False
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new_content = StoredContent(
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type=type,
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hash=content_hash_b58,
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**kwargs,
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created=datetime.now(),
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)
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db_session.add(new_content)
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db_session.commit()
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new_content = db_session.query(StoredContent).filter(StoredContent.hash == content_hash_b58).first()
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assert new_content, "Content not created (through utils)"
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content_filepath = os.path.join(UPLOADS_DIR, content_hash_b58)
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async with aiofiles.open(content_filepath, 'wb') as file:
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await file.write(content_bin)
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return new_content, True
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async def create_metadata_for_item(
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db_session,
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title: str = None,
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cover_url: str = None,
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authors: list = None,
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hashtags: list = [],
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) -> StoredContent:
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assert title, "No title provided"
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# assert cover_url, "No cover_url provided"
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assert len(title) > 3, "Title too short"
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title = title[:100].strip()
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item_metadata = {
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'name': title,
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'description': ' '.join([f"#{_h}" for _h in hashtags]),
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'attributes': [
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# {
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# 'trait_type': 'Artist',
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# 'value': 'Unknown'
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# },
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],
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}
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if cover_url:
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item_metadata['image'] = cover_url
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item_metadata['authors'] = [
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''.join([_a_ch for _a_ch in _a if len(_a_ch.encode()) == 1]) for _a in (authors or [])[:500]
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]
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# Upload file
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metadata_bin = json.dumps(item_metadata).encode()
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metadata_hash = sha256(metadata_bin).digest()
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metadata_hash_b58 = b58encode(metadata_hash).decode()
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metadata_content, is_new = await create_new_content(
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db_session, "local/content_bin", metadata_bin, filename="metadata.json",
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meta={'content_type': 'application/json'},
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)
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return metadata_content
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