39c8b14f |
1 | /* Modified version of node-googleweather by maxkueng |
2 | * (Removed the celsius and kmh conversions) |
3 | * Original library can be found at: |
4 | * https://github.com/maxkueng/node-googleweather/ |
5 | * |
6 | MIT License |
7 | |
8 | Copyright (c) 2011 Max Kueng (http://maxkueng.com/) |
9 | |
10 | Permission is hereby granted, free of charge, to any person obtaining |
11 | a copy of this software and associated documentation files (the |
12 | "Software"), to deal in the Software without restriction, including |
13 | without limitation the rights to use, copy, modify, merge, publish, |
14 | distribute, sublicense, and/or sell copies of the Software, and to |
15 | permit persons to whom the Software is furnished to do so, subject to |
16 | the following conditions: |
17 | |
18 | The above copyright notice and this permission notice shall be |
19 | included in all copies or substantial portions of the Software. |
20 | |
21 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
22 | EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
23 | MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND |
24 | NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE |
25 | LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION |
26 | OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION |
27 | WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
28 | */ |
29 | |
30 | var request = require('request'); |
31 | var jsdom = require('jsdom'); |
32 | |
33 | Date.prototype.pad = function (n) { |
34 | return (n < 10) ? '0' + n : n; |
35 | }; |
36 | |
37 | Date.prototype.toISODate = function () { |
38 | return this.getFullYear() + '-' |
39 | + this.pad(this.getMonth() + 1) + '-' |
40 | + this.pad(this.getDate()); |
41 | }; |
42 | |
43 | var get = function (callback, location, forecastDate) { |
44 | var currentConditions = { |
45 | 'date' : null, |
46 | 'condition' : null, |
47 | 'temperature' : null, |
48 | 'humidity' : null, |
49 | 'wind' : { |
50 | 'direction' : null, |
51 | 'speed' : null |
52 | } |
53 | }; |
54 | |
55 | var forecast = []; |
56 | |
57 | var uri = 'http://www.google.com/ig/api?weather=' |
58 | + escape(location); |
59 | |
60 | request({ |
61 | 'method' : 'GET', |
62 | 'uri' : uri, |
63 | 'headers' : { |
64 | 'User-Agent' : 'Nintendo Gameboy/1.0' |
65 | } |
66 | }, function (error, response, body) { |
67 | if (!error && response.statusCode == 200) { |
68 | jsdom.env(body, [], |
69 | function(errors, window) { |
70 | try { |
71 | var document = window.document; |
72 | var info = document.getElementsByTagName('forecast_information')[0]; |
73 | var current = document.getElementsByTagName('current_conditions')[0]; |
74 | var forecasts = document.getElementsByTagName('forecast_conditions'); |
75 | |
76 | var baseDateString = info.getElementsByTagName('forecast_date')[0].getAttribute('data'); |
77 | var baseDate = new Date(baseDateString); |
78 | |
79 | currentConditions.date = baseDateString; |
80 | currentConditions.condition = current.getElementsByTagName('condition')[0].getAttribute('data'); |
81 | currentConditions.temperature = current.getElementsByTagName('temp_f')[0].getAttribute('data'); |
82 | |
83 | var humidityString = current.getElementsByTagName('humidity')[0].getAttribute('data'); |
84 | currentConditions.humidity = /(\d+)%/.exec(humidityString)[1]; |
85 | |
86 | var windString = current.getElementsByTagName('wind_condition')[0].getAttribute('data'); |
87 | var windMatches = /([NESW]+)\sat\s([0-9]+)\smph/.exec(windString); |
88 | currentConditions.wind.direction = windMatches[1]; |
89 | currentConditions.wind.speed = windMatches[2]; |
90 | |
91 | for (var i = 0; i < forecasts.length; i++) { |
92 | var d = new Date(baseDate.getTime() + ( i * 24 * 3600 * 1000 )); |
93 | var condition = forecasts[i].getElementsByTagName('condition')[0].getAttribute('data'); |
94 | var lowTemp = forecasts[i].getElementsByTagName('low')[0].getAttribute('data'); |
95 | var highTemp = forecasts[i].getElementsByTagName('high')[0].getAttribute('data'); |
96 | |
97 | var forecastDay = { |
98 | 'date' : d.toISODate(), |
99 | 'condition' : condition, |
100 | 'temperature' : { |
101 | 'low' : lowTemp, |
102 | 'high' : highTemp |
103 | } |
104 | }; |
105 | |
106 | forecast[d.toISODate()] = forecastDay; |
107 | } |
108 | |
109 | callback(currentConditions, forecast[forecastDate]); |
110 | } catch(err) { |
111 | callback(null, null); |
112 | return; |
113 | } |
114 | } |
115 | ); |
116 | } |
117 | }); |
118 | }; |
119 | |
120 | exports.get = get; |