combain.cpp

00001 #include "main.h"
00002 #if (GEOLOCATION_PROVIDER == COMBAIN)
00003 #include "radio.h"
00004 
00005 char my_copy[128];
00006 
00007 const char COMBAIN_SSL_CA_PEM[] = "-----BEGIN CERTIFICATE-----\n"
00008 "MIIDSjCCAjKgAwIBAgIQRK+wgNajJ7qJMDmGLvhAazANBgkqhkiG9w0BAQUFADA/\n"
00009 "MSQwIgYDVQQKExtEaWdpdGFsIFNpZ25hdHVyZSBUcnVzdCBDby4xFzAVBgNVBAMT\n"
00010 "DkRTVCBSb290IENBIFgzMB4XDTAwMDkzMDIxMTIxOVoXDTIxMDkzMDE0MDExNVow\n"
00011 "PzEkMCIGA1UEChMbRGlnaXRhbCBTaWduYXR1cmUgVHJ1c3QgQ28uMRcwFQYDVQQD\n"
00012 "Ew5EU1QgUm9vdCBDQSBYMzCCASIwDQYJKoZIhvcNAQEBBQADggEPADCCAQoCggEB\n"
00013 "AN+v6ZdQCINXtMxiZfaQguzH0yxrMMpb7NnDfcdAwRgUi+DoM3ZJKuM/IUmTrE4O\n"
00014 "rz5Iy2Xu/NMhD2XSKtkyj4zl93ewEnu1lcCJo6m67XMuegwGMoOifooUMM0RoOEq\n"
00015 "OLl5CjH9UL2AZd+3UWODyOKIYepLYYHsUmu5ouJLGiifSKOeDNoJjj4XLh7dIN9b\n"
00016 "xiqKqy69cK3FCxolkHRyxXtqqzTWMIn/5WgTe1QLyNau7Fqckh49ZLOMxt+/yUFw\n"
00017 "7BZy1SbsOFU5Q9D8/RhcQPGX69Wam40dutolucbY38EVAjqr2m7xPi71XAicPNaD\n"
00018 "aeQQmxkqtilX4+U9m5/wAl0CAwEAAaNCMEAwDwYDVR0TAQH/BAUwAwEB/zAOBgNV\n"
00019 "HQ8BAf8EBAMCAQYwHQYDVR0OBBYEFMSnsaR7LHH62+FLkHX/xBVghYkQMA0GCSqG\n"
00020 "SIb3DQEBBQUAA4IBAQCjGiybFwBcqR7uKGY3Or+Dxz9LwwmglSBd49lZRNI+DT69\n"
00021 "ikugdB/OEIKcdBodfpga3csTS7MgROSR6cz8faXbauX+5v3gTt23ADq1cEmv8uXr\n"
00022 "AvHRAosZy5Q6XkjEGB5YGV8eAlrwDPGxrancWYaLbumR9YbK+rlmM6pZW87ipxZz\n"
00023 "R8srzJmwN0jP41ZL9c8PDHIyh8bwRLtTcm1D9SZImlJnt1ir/md2cXjbDaJWFBM5\n"
00024 "JDGFoqgCWjBH4d1QB7wCCZAA62RjYJsWvIjJEubSfZGL+T0yjWW06XyxV3bqxbYo\n"
00025 "Ob8VZRzI9neWagqNdwvYkQsEjgfbKbYK7p2CNTUQ\n"
00026 "-----END CERTIFICATE-----\n";
00027 
00028 /* parse_json: get result sent from server */
00029 void parse_json(const char *body, float *lat, float *lng, int *accuracy)
00030 {
00031     bool in_location = false;
00032     bool get_lat = false;
00033     bool get_lng = false;
00034     bool get_accuracy = false;
00035     unsigned n;
00036     strncpy(my_copy, body, sizeof(my_copy));
00037     strtok(my_copy, "\"");
00038     for (n = 0; n < 10; n++) {
00039         char *t = strtok(NULL, "\":");
00040         if (!t)
00041             break;
00042         if (in_location) {
00043             if (get_lat) {
00044                 sscanf(t, "%f", lat);
00045                 get_lat = false;
00046             } else if (get_lng) {
00047                 sscanf(t, "%f", lng);
00048                 get_lng = false;
00049             }
00050             if (strchr(t, '}'))
00051                 in_location = false;
00052             else if (strcmp(t, "lat") == 0)
00053                 get_lat = true;
00054             else if (strcmp(t, "lng") == 0)
00055                 get_lng = true;
00056         } else {
00057             if (get_accuracy) {
00058                 sscanf(t, "%d", accuracy);
00059                 get_accuracy = false;
00060             }
00061             if (strcmp(t, "location") == 0)
00062                 in_location = true;
00063             else if (strcmp(t, "accuracy") == 0)
00064                 get_accuracy = true;
00065         }
00066     }
00067 }
00068 
00069 int post_scan_result(const char *body, float *lat, float *lng, int *accuracy)
00070 {
00071     HttpsRequest* post_req = new HttpsRequest(network, COMBAIN_SSL_CA_PEM, HTTP_POST, "https://apiv2.combain.com?key=YOUR_API_KEY");
00072 
00073     post_req->set_header("Content-Type", "application/json");
00074 
00075     HttpResponse* post_res = post_req->send(body, strlen(body));
00076     if (!post_res) {
00077         printf("HttpRequest failed (error code %d)\n", post_req->get_error());
00078         return -1;
00079     }
00080 
00081     dump_response(post_res);
00082     parse_json(post_res->get_body_as_string().c_str(), lat, lng, accuracy);
00083     delete post_req;
00084 
00085     return 0;
00086 }
00087 
00088 /*
00089  * https://combain.com/api/#request-body
00090  */
00091 
00092 void wifi_result_to_json(bool first, const uint8_t *result, unsigned macStart, unsigned rssi_idx)
00093 {
00094     char str[8];
00095     unsigned i;
00096 
00097     if (!first)
00098         strcat(json, ",");  // end previous wifiAccessPoint
00099 
00100     strcat(json, "{\"macAddress\": \"");
00101     for (i = 0; i < 6; i++) {
00102         sprintf(str, "%02x", result[i + macStart]);
00103         strcat(json, str);
00104         if (i < 5)
00105             strcat(json, ":");
00106     }
00107     strcat(json, "\",\"signalStrength\": ");
00108     sprintf(str, "%d", (int8_t)result[rssi_idx]);
00109     strcat(json, str);
00110     /* TODO: combain takes channel and/or frequency of access point */
00111 
00112     strcat(json, "}");
00113 }
00114 
00115 void json_start()
00116 {
00117     strcpy(json, "{\"considerIp\": \"false\",");
00118     strcat(json, "\"wifiAccessPoints\": [");
00119 }
00120 
00121 void json_end()
00122 {
00123     strcat(json, "]");
00124     strcat(json, "}");
00125 }
00126 
00127 #endif /* GEOLOCATION_PROVIDER == COMBAIN */