1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
|
/* -*- Mode: JS2; indent-tabs-mode: nil; js2-basic-offset: 4 -*- */
/* vim: set et ts=4 sw=4: */
/*
* Copyright (c) 2020 Marcus Lundblad
*
* GNOME Maps is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*
* GNOME Maps is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* for more details.
*
* You should have received a copy of the GNU General Public License along
* with GNOME Maps; if not, see <http://www.gnu.org/licenses/>.
*
* Author: Marcus Lundblad <ml@update.uu.se>
*/
import gettext from 'gettext';
import GLib from 'gi://GLib';
import * as Utils from './utils.js';
const _ = gettext.gettext;
// Matches URLs for OpenStreetMap (for addressing objects or coordinates)
const OSM_URL_REGEX = new RegExp(/https?:\/\/(www\.)?openstreetmap\.org./);
/**
* For URLs identifiable as pointing to a coordinate
* e.g. an openstreetmap.org URL with lat and lon query parameters,
* returns [lat, lon, optional zoom], otherwise [].
*/
export function parseAsCoordinateURL(url) {
if (url.match(OSM_URL_REGEX)) {
/* it seems #map= is not handle well by parse_params(), so just remove
* the # as a work-around
*/
let uri = GLib.Uri.parse(url.replace('#map=', 'map='), GLib.UriFlags.NONE);
let query = uri.get_query();
let path = uri.get_path();
// allow OSM location URLs encoding the location with or without a ?
let params = GLib.Uri.parse_params(query ?? path.replace('/', ''), -1,
'&', GLib.UriParamsFlags.NONE);
let lat = params.lat;
let lon = params.lon;
let mlat = params.mlat;
let mlon = params.mlon;
let zoom;
let map = params.map;
if (map) {
let parts = map.split('/');
if (parts.length !== 3) {
return [];
} else {
zoom = parseInt(parts[0]);
lat = parseFloat(parts[1]);
lon = parseFloat(parts[2]);
}
} else if (mlat && mlon) {
lat = parseFloat(mlat);
lon = parseFloat(mlon);
if (params.zoom)
zoom = parseInt(params.zoom);
} else if (lat && lon) {
lat = parseFloat(lat);
lon = parseFloat(lon);
if (params.zoom)
zoom = parseInt(params.zoom);
} else {
return [];
}
return [lat, lon, zoom];
} else {
return [];
}
}
/**
* For URLs addressing a specific OSM object (node, way, or relation),
* returns [type,id], otherwise [].
*/
export function parseAsObjectURL(url) {
if (url.match(OSM_URL_REGEX)) {
let uri = GLib.Uri.parse(url, GLib.UriFlags.NONE);
let path = uri.get_path();
let parts = path.split('/');
if (parts.length === 3 && parts[0] === '' &&
(parts[1] === 'node' ||
parts[1] === 'way' ||
parts[1] === 'relation')) {
let id = parseInt(parts[2]);
if (id > 0)
return [parts[1], id];
}
}
return [];
}
/**
* For maps: URIs, return the search query string if a valid URI
* otherwise null.
*/
export function parseMapsURI(uri) {
let path = uri.substring('maps:'.length);
let [param, value] = Utils.splitAtFirst(path, '=');
if (param === 'q') {
try {
return GLib.uri_unescape_string(value, null);
} catch (error) {
return null;
}
} else {
return null;
}
}
|
