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
|
#include "location.hpp"
#include "wifi_info.hpp"
#include "download_manager.hpp"
#include "../base/logging.hpp"
#include "../std/bind.hpp"
#include "../std/ctime.hpp"
#include "../3party/jansson/myjansson.hpp"
#define MWM_GEOLOCATION_SERVER "http://geolocation.server/"
namespace location
{
class WiFiLocationService : public LocationService
{
WiFiInfo m_wifiInfo;
void OnHttpPostFinished(HttpFinishedParams const & result)
{
// here we should receive json reply with coordinates and accuracy
try
{
my::Json root(result.m_data.c_str());
if (json_is_object(root))
{
json_t * location = json_object_get(root, "location");
if (json_is_object(location))
{
json_t * lat = json_object_get(location, "latitude");
json_t * lon = json_object_get(location, "longitude");
json_t * acc = json_object_get(location, "accuracy");
if (json_is_real(lat) && json_is_real(lon) && json_is_real(acc))
{
GpsInfo info;
info.m_latitude = json_real_value(lat);
info.m_longitude = json_real_value(lon);
info.m_horizontalAccuracy = json_real_value(acc);
// @TODO introduce flags to mark valid values
info.m_status = EAccurateMode;
info.m_timestamp = time(NULL);
info.m_source = location::EGoogle;
NotifyGpsObserver(info);
}
}
}
}
catch (my::Json::Exception const & e)
{
LOG(LWARNING, ("Invalid reply from location server:", e.what(), result.m_data));
}
LOG(LWARNING, ("Invalid reply from location server:", result.m_data));
}
void OnWifiScanCompleted(vector<WiFiInfo::AccessPoint> const & accessPoints)
{
string jsonRequest("{\"version\":\"1.1.0\"");
if (accessPoints.size())
jsonRequest += ",\"wifi_towers\":[";
for (size_t i = 0; i < accessPoints.size(); ++i)
{
jsonRequest += "{\"mac_address\":\"";
jsonRequest += accessPoints[i].m_bssid;
jsonRequest += "\",\"ssid\":\"";
jsonRequest += accessPoints[i].m_ssid;
jsonRequest += "\",\"signal_strength\":";
jsonRequest += accessPoints[i].m_signalStrength;
jsonRequest += "},";
}
if (accessPoints.size())
jsonRequest[jsonRequest.size() - 1] = ']';
jsonRequest += "}";
HttpStartParams params;
params.m_finish = bind(&WiFiLocationService::OnHttpPostFinished, this, _1);
params.m_contentType = "application/json";
params.m_postData = jsonRequest;
params.m_url = MWM_GEOLOCATION_SERVER;
GetDownloadManager().HttpRequest(params);
}
public:
virtual void StartUpdate(bool)
{
m_wifiInfo.RequestWiFiBSSIDs(bind(&WiFiLocationService::OnWifiScanCompleted, this, _1));
}
virtual void StopUpdate()
{
}
};
}
location::LocationService * CreateWiFiLocationService()
{
return new location::WiFiLocationService();
}
|
