58 lines
1.7 KiB
Text
58 lines
1.7 KiB
Text
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#!/usr/bin/env python
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"""
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Small flask server to serve map tiles.
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"""
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from argparse import ArgumentParser
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import importlib.util
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from http import HTTPStatus
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import errno
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import os.path
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import sys
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from flask import Flask, send_file, Response, render_template
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# Parse Arguments
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parser = ArgumentParser(description="Map Tile Server")
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parser.add_argument(
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"--tile-path",
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type=str,
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help="Location of map tiles on the filesystem",
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default=f"{os.path.expanduser('~')}/.local/share/marble/maps/earth/openstreetmap"
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)
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parser.add_argument("--port", type=int, help="Port to bind to.", default=9001)
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args = vars(parser.parse_args())
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# Try to locate mapserver folder
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root_path = "mapserver"
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if not os.path.isdir(root_path):
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spec_location = importlib.util.find_spec('mapserver')
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if spec_location is None or spec_location.origin is None:
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print("mapserver folder is not in current directory or installed.")
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sys.exit(1)
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root_path = os.path.dirname(spec_location.origin)
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app = Flask(__name__, root_path=root_path)
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@app.route('/tiles/<zoom>/<y>/<x>')
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def tiles(zoom, y, x):
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"""Serve tiles directly from filesystem if found."""
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filename = args['tile_path'] + f"/{zoom}/{x}/{y}.jpg"
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if os.path.isfile(filename):
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return send_file(filename)
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return Response(status=HTTPStatus.NOT_FOUND)
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@app.route('/')
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def index():
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"""Return a sample fullscreen map application."""
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return render_template("index.html")
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if __name__ == '__main__':
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try:
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app.run(port=args['port'])
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except OSError as e:
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if e.errno == errno.EADDRINUSE:
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print("Address-Port Combination in use. Is another servemaps running?")
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os._exit(errno.EADDRINUSE)
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raise e
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