mirror of
https://github.com/esphome/esphome.git
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105 lines
3.3 KiB
Python
105 lines
3.3 KiB
Python
from __future__ import annotations
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from datetime import datetime
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import logging
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import os
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from pathlib import Path
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import requests
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import esphome.config_validation as cv
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from esphome.const import __version__
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from esphome.core import CORE, TimePeriodSeconds
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_LOGGER = logging.getLogger(__name__)
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CODEOWNERS = ["@landonr"]
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NETWORK_TIMEOUT = 30
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IF_MODIFIED_SINCE = "If-Modified-Since"
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CACHE_CONTROL = "Cache-Control"
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CACHE_CONTROL_MAX_AGE = "max-age="
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CONTENT_DISPOSITION = "content-disposition"
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TEMP_DIR = "temp"
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def has_remote_file_changed(url, local_file_path):
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if os.path.exists(local_file_path):
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_LOGGER.debug("has_remote_file_changed: File exists at %s", local_file_path)
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try:
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local_modification_time = os.path.getmtime(local_file_path)
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local_modification_time_str = datetime.utcfromtimestamp(
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local_modification_time
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).strftime("%a, %d %b %Y %H:%M:%S GMT")
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headers = {
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IF_MODIFIED_SINCE: local_modification_time_str,
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CACHE_CONTROL: CACHE_CONTROL_MAX_AGE + "3600",
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}
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response = requests.head(
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url, headers=headers, timeout=NETWORK_TIMEOUT, allow_redirects=True
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)
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_LOGGER.debug(
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"has_remote_file_changed: File %s, Local modified %s, response code %d",
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local_file_path,
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local_modification_time_str,
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response.status_code,
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)
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if response.status_code == 304:
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_LOGGER.debug(
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"has_remote_file_changed: File not modified since %s",
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local_modification_time_str,
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)
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return False
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_LOGGER.debug("has_remote_file_changed: File modified")
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return True
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except requests.exceptions.RequestException as e:
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raise cv.Invalid(
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f"Could not check if {url} has changed, please check if file exists "
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f"({e})"
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)
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_LOGGER.debug("has_remote_file_changed: File doesn't exists at %s", local_file_path)
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return True
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def is_file_recent(file_path: str, refresh: TimePeriodSeconds) -> bool:
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if os.path.exists(file_path):
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creation_time = os.path.getctime(file_path)
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current_time = datetime.now().timestamp()
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return current_time - creation_time <= refresh.total_seconds
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return False
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def compute_local_file_dir(domain: str) -> Path:
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base_directory = Path(CORE.data_dir) / domain
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base_directory.mkdir(parents=True, exist_ok=True)
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return base_directory
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def download_content(url: str, path: Path, timeout=NETWORK_TIMEOUT) -> None:
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if not has_remote_file_changed(url, path):
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_LOGGER.debug("Remote file has not changed %s", url)
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return
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_LOGGER.debug(
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"Remote file has changed, downloading from %s to %s",
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url,
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path,
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)
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try:
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req = requests.get(
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url,
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timeout=timeout,
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headers={"User-agent": f"ESPHome/{__version__} (https://esphome.io)"},
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)
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req.raise_for_status()
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except requests.exceptions.RequestException as e:
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raise cv.Invalid(f"Could not download from {url}: {e}")
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path.parent.mkdir(parents=True, exist_ok=True)
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path.write_bytes(req.content)
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