Source code for pygeoapi.flask_app

# =================================================================
#
# Authors: Tom Kralidis <tomkralidis@gmail.com>
#          Norman Barker <norman.barker@gmail.com>
#
# Copyright (c) 2020 Tom Kralidis
#
# Permission is hereby granted, free of charge, to any person
# obtaining a copy of this software and associated documentation
# files (the "Software"), to deal in the Software without
# restriction, including without limitation the rights to use,
# copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the
# Software is furnished to do so, subject to the following
# conditions:
#
# The above copyright notice and this permission notice shall be
# included in all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
# OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
# HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
# WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
# OTHER DEALINGS IN THE SOFTWARE.
#
# =================================================================

""" Flask module providing the route paths to the api"""

import os

import click

from flask import Flask, make_response, request, send_from_directory

from pygeoapi.api import API
from pygeoapi.util import get_mimetype, yaml_load

APP = Flask(__name__)
APP.url_map.strict_slashes = False

CONFIG = None

if 'PYGEOAPI_CONFIG' not in os.environ:
    raise RuntimeError('PYGEOAPI_CONFIG environment variable not set')

with open(os.environ.get('PYGEOAPI_CONFIG'), encoding='utf8') as fh:
    CONFIG = yaml_load(fh)

# CORS: optionally enable from config.
if CONFIG['server'].get('cors', False):
    from flask_cors import CORS
    CORS(APP)

APP.config['JSONIFY_PRETTYPRINT_REGULAR'] = CONFIG['server'].get(
    'pretty_print', True)

api_ = API(CONFIG)

OGC_SCHEMAS_LOCATION = CONFIG['server'].get('ogc_schemas_location', None)

if (OGC_SCHEMAS_LOCATION is not None and
        not OGC_SCHEMAS_LOCATION.startswith('http')):
    # serve the OGC schemas locally

    if not os.path.exists(OGC_SCHEMAS_LOCATION):
        raise RuntimeError('OGC schemas misconfigured')

    @APP.route('/schemas/<path:path>', methods=['GET'])
    def schemas(path):
        """
        Serve OGC schemas locally

        :param path: path of the OGC schema document

        :returns: HTTP response
        """

        full_filepath = os.path.join(OGC_SCHEMAS_LOCATION, path)
        dirname_ = os.path.dirname(full_filepath)
        basename_ = os.path.basename(full_filepath)

        # TODO: better sanitization?
        path_ = dirname_.replace('..', '').replace('//', '')
        return send_from_directory(path_, basename_,
                                   mimetype=get_mimetype(basename_))


[docs]@APP.route('/') def landing_page(): """ OGC API landing page endpoint :returns: HTTP response """ headers, status_code, content = api_.landing_page( request.headers, request.args) response = make_response(content, status_code) if headers: response.headers = headers return response
[docs]@APP.route('/openapi') def openapi(): """ OpenAPI endpoint :returns: HTTP response """ with open(os.environ.get('PYGEOAPI_OPENAPI'), encoding='utf8') as ff: openapi = yaml_load(ff) headers, status_code, content = api_.openapi(request.headers, request.args, openapi) response = make_response(content, status_code) if headers: response.headers = headers return response
[docs]@APP.route('/conformance') def conformance(): """ OGC API conformance endpoint :returns: HTTP response """ headers, status_code, content = api_.conformance(request.headers, request.args) response = make_response(content, status_code) if headers: response.headers = headers return response
[docs]@APP.route('/collections') @APP.route('/collections/<collection_id>') def collections(collection_id=None): """ OGC API collections endpoint :param collection_id: collection identifier :returns: HTTP response """ headers, status_code, content = api_.describe_collections( request.headers, request.args, collection_id) response = make_response(content, status_code) if headers: response.headers = headers return response
[docs]@APP.route('/collections/<collection_id>/queryables') def collection_queryables(collection_id=None): """ OGC API collections querybles endpoint :param collection_id: collection identifier :returns: HTTP response """ headers, status_code, content = api_.get_collection_queryables( request.headers, request.args, collection_id) response = make_response(content, status_code) if headers: response.headers = headers return response
[docs]@APP.route('/collections/<collection_id>/items') @APP.route('/collections/<collection_id>/items/<item_id>') def collection_items(collection_id, item_id=None): """ OGC API collections items endpoint :param collection_id: collection identifier :param item_id: item identifier :returns: HTTP response """ if item_id is None: headers, status_code, content = api_.get_collection_items( request.headers, request.args, collection_id) else: headers, status_code, content = api_.get_collection_item( request.headers, request.args, collection_id, item_id) response = make_response(content, status_code) if headers: response.headers = headers return response
[docs]@APP.route('/processes') @APP.route('/processes/<process_id>') def processes(process_id=None): """ OGC API - Processes description endpoint :param process_id: process identifier :returns: HTTP response """ headers, status_code, content = api_.describe_processes( request.headers, request.args, process_id) response = make_response(content, status_code) if headers: response.headers = headers return response
[docs]@APP.route('/processes/<process_id>/jobs', methods=['GET', 'POST']) def process_jobs(process_id=None): """ OGC API - Processes jobs endpoint :param process_id: process identifier :returns: HTTP response """ if request.method == 'GET': headers, status_code, content = ({}, 200, "[]") elif request.method == 'POST': headers, status_code, content = api_.execute_process( request.headers, request.args, request.data, process_id) response = make_response(content, status_code) if headers: response.headers = headers return response
[docs]@APP.route('/stac') def stac_catalog_root(): """ STAC root endpoint :returns: HTTP response """ headers, status_code, content = api_.get_stac_root( request.headers, request.args) response = make_response(content, status_code) if headers: response.headers = headers return response
[docs]@APP.route('/stac/<path:path>') def stac_catalog_path(path): """ STAC path endpoint :param path: path :returns: HTTP response """ headers, status_code, content = api_.get_stac_path( request.headers, request.args, path) response = make_response(content, status_code) if headers: response.headers = headers return response
@click.command() @click.pass_context @click.option('--debug', '-d', default=False, is_flag=True, help='debug') def serve(ctx, server=None, debug=False): """ Serve pygeoapi via Flask. Runs pygeoapi as a flask server. Not recommend for production. :param server: `string` of server type :param debug: `bool` of whether to run in debug mode :returns: void """ # setup_logger(CONFIG['logging']) APP.run(debug=True, host=api_.config['server']['bind']['host'], port=api_.config['server']['bind']['port']) if __name__ == '__main__': # run locally, for testing serve()