57 lines
1.7 KiB
Text
57 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 view map tiles.
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"""
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from gevent import monkey
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monkey.patch_all()
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from gevent.pywsgi import WSGIServer
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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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from os import getcwd
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import importlib.util
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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 Viewer")
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parser.add_argument(
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"--tile-server",
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type=str,
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help="Path to tile server",
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default="https://a.tile.openstreetmap.org/{z}/{x}/{y}.png"
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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 mapviewer folder
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root_path = getcwd() + "/mapserver"
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if not os.path.isdir(root_path):
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spec_location = importlib.util.find_spec('mapviewer')
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if spec_location is None or spec_location.origin is None:
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print("mapviewer 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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print(root_path)
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app = Flask(__name__, root_path=root_path)
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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", tile_server=args['tile_server'])
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if __name__ == '__main__':
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try:
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http_server = WSGIServer(('', args['port']), app)
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print(f"Starting map server on http://localhost:{args['port']}")
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http_server.serve_forever()
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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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