import hashlib from typing import List from flask import current_app from staticmap import Line, StaticMap from fittrackee.files import get_absolute_file_path def generate_map(map_filepath: str, map_data: List) -> None: """ Generate and save map image from map data """ m = StaticMap(400, 225, 10) if not current_app.config['TILE_SERVER']['DEFAULT_STATICMAP']: m.url_template = current_app.config['TILE_SERVER']['URL'].replace( '{s}.', '' ) line = Line(map_data, '#3388FF', 4) m.add_line(line) image = m.render() image.save(map_filepath) def get_map_hash(map_filepath: str) -> str: """ Generate a md5 hash used as id instead of workout id, to retrieve map image (maps are sensitive data) """ md5 = hashlib.md5() # nosec # need 3.9+ to use 'usedforsecurity' flag absolute_map_filepath = get_absolute_file_path(map_filepath) with open(absolute_map_filepath, 'rb') as f: for chunk in iter(lambda: f.read(128 * md5.block_size), b''): md5.update(chunk) return md5.hexdigest()