Spaces:
Running on Zero
Running on Zero
File size: 4,094 Bytes
28a3312 bb4981a 28a3312 bb4981a 28a3312 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 | import io
import json
import logging
import os
import threading
import time
import uuid
from concurrent.futures import ThreadPoolExecutor
from datetime import datetime, timezone
import requests
from google.auth.transport.requests import Request as GoogleAuthRequest
from google.oauth2 import service_account
from PIL import Image
DRIVE_FOLDER_ID = os.getenv(
"GOOGLE_DRIVE_FOLDER_ID", "1W0J0o-HI0vydlJDg1ed8yTrpFarwuH7M"
)
DRIVE_SCOPE = "https://www.googleapis.com/auth/drive"
DRIVE_UPLOAD_URL = (
"https://www.googleapis.com/upload/drive/v3/files"
"?uploadType=multipart&supportsAllDrives=true&fields=id"
)
MAX_PENDING_SAVES = 8
_executor = ThreadPoolExecutor(max_workers=2, thread_name_prefix="crowd-drive")
_pending_saves = threading.BoundedSemaphore(MAX_PENDING_SAVES)
_logger = logging.getLogger(__name__)
def _service_account_info():
value = os.getenv("GOOGLE_SERVICE_ACCOUNT_JSON")
if not value:
return None
return json.loads(value)
def _jpeg_bytes(image):
buffer = io.BytesIO()
image.convert("RGB").save(buffer, format="JPEG", quality=92, optimize=True)
return buffer.getvalue()
def _upload_image(session, token, name, data, properties):
metadata = {
"name": name,
"parents": [DRIVE_FOLDER_ID],
"appProperties": properties,
}
files = {
"metadata": (
"metadata",
json.dumps(metadata),
"application/json; charset=UTF-8",
),
"file": (name, data, "image/jpeg"),
}
headers = {"Authorization": f"Bearer {token}"}
for attempt in range(3):
response = session.post(
DRIVE_UPLOAD_URL,
headers=headers,
files=files,
timeout=30,
)
if response.ok:
return response.json()["id"]
if response.status_code not in {429, 500, 502, 503, 504}:
response.raise_for_status()
if attempt < 2:
time.sleep(2**attempt)
response.raise_for_status()
def _save_images(service_account_info, run_id, original, overlay, total):
try:
credentials = service_account.Credentials.from_service_account_info(
service_account_info,
scopes=[DRIVE_SCOPE],
)
credentials.refresh(GoogleAuthRequest())
timestamp = datetime.now(timezone.utc).strftime("%Y%m%dT%H%M%SZ")
prefix = f"{timestamp}_{run_id}"
common = {"source": "crowd-counter", "run_id": run_id}
with requests.Session() as session:
_upload_image(
session,
credentials.token,
f"{prefix}_original.jpg",
original,
{**common, "image_type": "original"},
)
_upload_image(
session,
credentials.token,
f"{prefix}_counted_{total}.jpg",
overlay,
{**common, "image_type": "counted", "estimated_count": str(total)},
)
except Exception:
_logger.exception("Failed to save Crowd Counter images to Google Drive")
finally:
_pending_saves.release()
def save_images_async(original_path, overlay, total):
try:
service_account_info = _service_account_info()
except (json.JSONDecodeError, TypeError):
_logger.exception("Invalid GOOGLE_SERVICE_ACCOUNT_JSON")
return False
if not service_account_info:
return False
if not _pending_saves.acquire(blocking=False):
_logger.error("Skipped Crowd Counter Drive save because the queue is full")
return False
try:
original = _jpeg_bytes(Image.open(original_path))
counted = _jpeg_bytes(overlay)
except Exception:
_pending_saves.release()
_logger.exception("Failed to prepare Crowd Counter images for Google Drive")
return False
run_id = uuid.uuid4().hex[:12]
_executor.submit(
_save_images,
service_account_info,
run_id,
original,
counted,
int(total),
)
return True
|