const char* IoTHubAccount_GetEventhubAccessKey(void)
{
char *iothub_connection_string;
static char access_key[128];
if ((iothub_connection_string = IoTHubAccount_GetIoTHubConnString()) != NULL)
{
STRING_HANDLE iothub_connection_string_str;
if((iothub_connection_string_str = STRING_construct(iothub_connection_string)) != NULL)
{
STRING_TOKENIZER_HANDLE tokenizer;
if ((tokenizer = STRING_TOKENIZER_create(iothub_connection_string_str)) != NULL)
{
STRING_HANDLE tokenString;
if ((tokenString = STRING_new()) != NULL)
{
STRING_HANDLE valueString;
if ((valueString = STRING_new()) != NULL)
{
while ((STRING_TOKENIZER_get_next_token(tokenizer, tokenString, "=") == 0))
{
char tokenValue[128];
strcpy(tokenValue, STRING_c_str(tokenString));
if (STRING_TOKENIZER_get_next_token(tokenizer, tokenString, ";") != 0)
{
break;
}
if (strcmp(tokenValue, "SharedAccessKey") == 0)
{
strcpy(access_key, STRING_c_str(tokenString));
break;
}
}
STRING_delete(valueString);
}
STRING_delete(tokenString);
}
STRING_TOKENIZER_destroy(tokenizer);
}
STRING_delete(iothub_connection_string_str);
}
}
return access_key;
}
static void setup_dev_auth_emulator_generate_credentials_mocks(const char* token_scope)
{
STRICT_EXPECTED_CALL(STRING_new());
STRICT_EXPECTED_CALL(get_time(IGNORED_PTR_ARG));
STRICT_EXPECTED_CALL(STRING_construct(token_scope));
STRICT_EXPECTED_CALL(STRING_construct(IGNORED_PTR_ARG))
.IgnoreArgument_psz();
STRICT_EXPECTED_CALL(SASToken_Create(IGNORED_PTR_ARG, IGNORED_PTR_ARG, IGNORED_PTR_ARG, IGNORED_NUM_ARG))
.IgnoreArgument_scope()
.IgnoreArgument_keyName()
.IgnoreArgument_expiry()
.IgnoreArgument_key();
STRICT_EXPECTED_CALL(STRING_c_str(IGNORED_PTR_ARG))
.IgnoreArgument_handle();
STRICT_EXPECTED_CALL(mallocAndStrcpy_s(IGNORED_PTR_ARG, IGNORED_PTR_ARG))
.IgnoreArgument_destination()
.IgnoreArgument_source();
STRICT_EXPECTED_CALL(STRING_delete(IGNORED_PTR_ARG))
.IgnoreArgument_handle();
STRICT_EXPECTED_CALL(STRING_delete(IGNORED_PTR_ARG))
.IgnoreArgument_handle();
STRICT_EXPECTED_CALL(STRING_delete(IGNORED_PTR_ARG))
.IgnoreArgument_handle();
STRICT_EXPECTED_CALL(STRING_delete(IGNORED_PTR_ARG))
.IgnoreArgument_handle();
}
static int InitializeConnection(PMQTTTRANSPORT_HANDLE_DATA transportState, bool initialConnection)
{
int result = 0;
if (!transportState->connected && !transportState->destroyCalled)
{
// Construct SAS token
size_t secSinceEpoch = (size_t)(difftime(get_time(NULL), EPOCH_TIME_T_VALUE) + 0);
size_t expiryTime = secSinceEpoch + SAS_TOKEN_DEFAULT_LIFETIME;
// Not checking the success of this variable, if fail it will fail in the SASToken creation and return false;
STRING_HANDLE emptyKeyName = STRING_new();
STRING_HANDLE sasToken = SASToken_Create(transportState->device_key, transportState->sasTokenSr, emptyKeyName, expiryTime);
if (sasToken == NULL)
{
result = __LINE__;
}
else
{
MQTT_CLIENT_OPTIONS options = { 0 };
options.clientId = (char*)STRING_c_str(transportState->device_id);
options.willMessage = NULL;
options.username = (char*)STRING_c_str(transportState->configPassedThroughUsername);
options.password = (char*)STRING_c_str(sasToken);
options.keepAliveInterval = DEFAULT_MQTT_KEEPALIVE;
options.useCleanSession = false;
options.qualityOfServiceValue = DELIVER_AT_LEAST_ONCE;
// construct address
const char* hostAddress = STRING_c_str(transportState->hostAddress);
const char* hostName = strstr(hostAddress, "//");
if (hostName == NULL)
{
hostName = hostAddress;
}
else
{
// Increment beyond the double backslash
hostName += 2;
}
transportState->xioTransport = getIoTransportProvider(hostName, transportState->portNum);
if (mqtt_client_connect(transportState->mqttClient, transportState->xioTransport, &options) != 0)
{
LogError("failure connecting to address %s:%d.\r\n", STRING_c_str(transportState->hostAddress), transportState->portNum);
result = __LINE__;
}
else
{
transportState->connected = true;
result = 0;
}
STRING_delete(emptyKeyName);
STRING_delete(sasToken);
}
}
return result;
}
/* Codes_SRS_CONNECTIONSTRINGPARSER_01_001: [connectionstringparser_parse shall parse all key value pairs from the connection_string passed in as argument and return a new map that holds the key/value pairs.] */
MAP_HANDLE connectionstringparser_parse(STRING_HANDLE connection_string)
{
MAP_HANDLE result;
if (connection_string == NULL)
{
/* Codes_SRS_CONNECTIONSTRINGPARSER_01_002: [If connection_string is NULL then connectionstringparser_parse shall fail and return NULL.] */
result = NULL;
LogError("NULL connection string passed to tokenizer.");
}
else
{
/* Codes_SRS_CONNECTIONSTRINGPARSER_01_003: [connectionstringparser_parse shall create a STRING tokenizer to be used for parsing the connection string, by calling STRING_TOKENIZER_create.] */
/* Codes_SRS_CONNECTIONSTRINGPARSER_01_004: [connectionstringparser_parse shall start scanning at the beginning of the connection string.] */
STRING_TOKENIZER_HANDLE tokenizer = STRING_TOKENIZER_create(connection_string);
if (tokenizer == NULL)
{
/* Codes_SRS_CONNECTIONSTRINGPARSER_01_015: [If STRING_TOKENIZER_create fails, connectionstringparser_parse shall fail and return NULL.] */
result = NULL;
LogError("Error creating STRING tokenizer.");
}
else
{
/* Codes_SRS_CONNECTIONSTRINGPARSER_01_016: [2 STRINGs shall be allocated in order to hold the to be parsed key and value tokens.] */
STRING_HANDLE token_key_string = STRING_new();
if (token_key_string == NULL)
{
/* Codes_SRS_CONNECTIONSTRINGPARSER_01_017: [If allocating the STRINGs fails connectionstringparser_parse shall fail and return NULL.] */
result = NULL;
LogError("Error creating key token STRING.");
}
else
{
STRING_HANDLE token_value_string = STRING_new();
if (token_value_string == NULL)
{
/* Codes_SRS_CONNECTIONSTRINGPARSER_01_017: [If allocating the STRINGs fails connectionstringparser_parse shall fail and return NULL.] */
result = NULL;
LogError("Error creating value token STRING.");
}
else
{
result = Map_Create(NULL);
if (result == NULL)
{
/* Codes_SRS_CONNECTIONSTRINGPARSER_01_018: [If creating the result map fails, then connectionstringparser_parse shall return NULL.] */
LogError("Error creating Map.");
}
else
{
/* Codes_SRS_CONNECTIONSTRINGPARSER_01_005: [The following actions shall be repeated until parsing is complete:] */
/* Codes_SRS_CONNECTIONSTRINGPARSER_01_006: [connectionstringparser_parse shall find a token (the key of the key/value pair) delimited by the `=` character, by calling STRING_TOKENIZER_get_next_token.] */
/* Codes_SRS_CONNECTIONSTRINGPARSER_01_007: [If STRING_TOKENIZER_get_next_token fails, parsing shall be considered complete.] */
while (STRING_TOKENIZER_get_next_token(tokenizer, token_key_string, "=") == 0)
{
bool is_error = false;
/* Codes_SRS_CONNECTIONSTRINGPARSER_01_008: [connectionstringparser_parse shall find a token (the value of the key/value pair) delimited by the `;` character, by calling STRING_TOKENIZER_get_next_token.] */
if (STRING_TOKENIZER_get_next_token(tokenizer, token_value_string, ";") != 0)
{
/* Codes_SRS_CONNECTIONSTRINGPARSER_01_009: [If STRING_TOKENIZER_get_next_token fails, connectionstringparser_parse shall fail and return NULL (freeing the allocated result map).] */
is_error = true;
LogError("Error reading value token from the connection string.");
}
else
{
/* Codes_SRS_CONNECTIONSTRINGPARSER_01_011: [The C strings for the key and value shall be extracted from the previously parsed STRINGs by using STRING_c_str.] */
const char* token = STRING_c_str(token_key_string);
/* Codes_SRS_CONNECTIONSTRINGPARSER_01_013: [If STRING_c_str fails then connectionstringparser_parse shall fail and return NULL (freeing the allocated result map).] */
if ((token == NULL) ||
/* Codes_SRS_CONNECTIONSTRINGPARSER_01_019: [If the key length is zero then connectionstringparser_parse shall fail and return NULL (freeing the allocated result map).] */
(strlen(token) == 0))
{
is_error = true;
LogError("The key token is NULL or empty.");
}
else
{
/* Codes_SRS_CONNECTIONSTRINGPARSER_01_011: [The C strings for the key and value shall be extracted from the previously parsed STRINGs by using STRING_c_str.] */
const char* value = STRING_c_str(token_value_string);
if (value == NULL)
{
/* Codes_SRS_CONNECTIONSTRINGPARSER_01_013: [If STRING_c_str fails then connectionstringparser_parse shall fail and return NULL (freeing the allocated result map).] */
is_error = true;
LogError("Could not get C string for value token.");
}
else
{
/* Codes_SRS_CONNECTIONSTRINGPARSER_01_010: [The key and value shall be added to the result map by using Map_Add.] */
if (Map_Add(result, token, value) != 0)
{
/* Codes_SRS_CONNECTIONSTRINGPARSER_01_012: [If Map_Add fails connectionstringparser_parse shall fail and return NULL (freeing the allocated result map).] */
is_error = true;
LogError("Could not add the key/value pair to the result map.");
}
}
}
}
if (is_error)
{
LogError("Error parsing connection string.");
Map_Destroy(result);
result = NULL;
break;
}
}
}
STRING_delete(token_value_string);
}
STRING_delete(token_key_string);
}
/* Codes_SRS_CONNECTIONSTRINGPARSER_01_014: [After the parsing is complete the previously allocated STRINGs and STRING tokenizer shall be freed by calling STRING_TOKENIZER_destroy.] */
STRING_TOKENIZER_destroy(tokenizer);
}
}
return result;
}
IOTHUB_CLIENT_LL_HANDLE IoTHubClient_LL_CreateFromConnectionString(const char* connectionString, IOTHUB_CLIENT_TRANSPORT_PROVIDER protocol)
{
IOTHUB_CLIENT_LL_HANDLE result = NULL;
/*Codes_SRS_IOTHUBCLIENT_LL_05_001: [IoTHubClient_LL_CreateFromConnectionString shall obtain the version string by a call to IoTHubClient_GetVersionString.]*/
/*Codes_SRS_IOTHUBCLIENT_LL_05_002: [IoTHubClient_LL_CreateFromConnectionString shall print the version string to standard output.]*/
LogInfo("IoT Hub SDK for C, version %s", IoTHubClient_GetVersionString());
/* Codes_SRS_IOTHUBCLIENT_LL_12_003: [IoTHubClient_LL_CreateFromConnectionString shall verify the input parameter and if it is NULL then return NULL] */
if (connectionString == NULL)
{
LogError("Input parameter is NULL: connectionString");
}
else if (protocol == NULL)
{
LogError("Input parameter is NULL: protocol");
}
else
{
/* Codes_SRS_IOTHUBCLIENT_LL_12_004: [IoTHubClient_LL_CreateFromConnectionString shall allocate IOTHUB_CLIENT_CONFIG structure] */
IOTHUB_CLIENT_CONFIG* config = malloc(sizeof(IOTHUB_CLIENT_CONFIG));
if (config == NULL)
{
/* Codes_SRS_IOTHUBCLIENT_LL_12_012: [If the allocation failed IoTHubClient_LL_CreateFromConnectionString returns NULL] */
LogError("Malloc failed");
return NULL;
}
else
{
STRING_TOKENIZER_HANDLE tokenizer1 = NULL;
STRING_HANDLE connString = NULL;
STRING_HANDLE tokenString = NULL;
STRING_HANDLE valueString = NULL;
STRING_HANDLE hostNameString = NULL;
STRING_HANDLE hostSuffixString = NULL;
STRING_HANDLE deviceIdString = NULL;
STRING_HANDLE deviceKeyString = NULL;
STRING_HANDLE deviceSasTokenString = NULL;
STRING_HANDLE protocolGateway = NULL;
config->protocol = protocol;
config->iotHubName = NULL;
config->iotHubSuffix = NULL;
config->deviceId = NULL;
config->deviceKey = NULL;
config->deviceSasToken = NULL;
/* Codes_SRS_IOTHUBCLIENT_LL_04_002: [If it does not, it shall pass the protocolGatewayHostName NULL.] */
config->protocolGatewayHostName = NULL;
if ((connString = STRING_construct(connectionString)) == NULL)
{
LogError("Error constructing connectiong String");
}
else if ((tokenizer1 = STRING_TOKENIZER_create(connString)) == NULL)
{
LogError("Error creating Tokenizer");
}
else if ((tokenString = STRING_new()) == NULL)
{
LogError("Error creating Token String");
}
else if ((valueString = STRING_new()) == NULL)
{
LogError("Error creating Value String");
}
else if ((hostNameString = STRING_new()) == NULL)
{
LogError("Error creating HostName String");
}
else if ((hostSuffixString = STRING_new()) == NULL)
{
LogError("Error creating HostSuffix String");
}
/* Codes_SRS_IOTHUBCLIENT_LL_12_005: [IoTHubClient_LL_CreateFromConnectionString shall try to parse the connectionString input parameter for the following structure: "Key1=value1;key2=value2;key3=value3..."] */
/* Codes_SRS_IOTHUBCLIENT_LL_12_006: [IoTHubClient_LL_CreateFromConnectionString shall verify the existence of the following Key/Value pairs in the connection string: HostName, DeviceId, SharedAccessKey or SharedAccessSignature.] */
else
{
while ((STRING_TOKENIZER_get_next_token(tokenizer1, tokenString, "=") == 0))
{
if (STRING_TOKENIZER_get_next_token(tokenizer1, valueString, ";") != 0)
{
LogError("Tokenizer error");
break;
}
else
{
if (tokenString != NULL)
{
/* Codes_SRS_IOTHUBCLIENT_LL_12_010: [IoTHubClient_LL_CreateFromConnectionString shall fill up the IOTHUB_CLIENT_CONFIG structure using the following mapping: iotHubName = Name, iotHubSuffix = Suffix, deviceId = DeviceId, deviceKey = SharedAccessKey or deviceSasToken = SharedAccessSignature] */
const char* s_token = STRING_c_str(tokenString);
if (strcmp(s_token, HOSTNAME_TOKEN) == 0)
{
/* Codes_SRS_IOTHUBCLIENT_LL_12_009: [IoTHubClient_LL_CreateFromConnectionString shall split the value of HostName to Name and Suffix using the first "." as a separator] */
STRING_TOKENIZER_HANDLE tokenizer2 = NULL;
if ((tokenizer2 = STRING_TOKENIZER_create(valueString)) == NULL)
{
LogError("Error creating Tokenizer");
break;
}
else
{
/* Codes_SRS_IOTHUBCLIENT_LL_12_015: [If the string split failed, IoTHubClient_LL_CreateFromConnectionString returns NULL ] */
if (STRING_TOKENIZER_get_next_token(tokenizer2, hostNameString, ".") != 0)
{
LogError("Tokenizer error");
STRING_TOKENIZER_destroy(tokenizer2);
break;
}
else
{
config->iotHubName = STRING_c_str(hostNameString);
if (STRING_TOKENIZER_get_next_token(tokenizer2, hostSuffixString, ";") != 0)
{
LogError("Tokenizer error");
STRING_TOKENIZER_destroy(tokenizer2);
break;
}
else
{
config->iotHubSuffix = STRING_c_str(hostSuffixString);
}
}
STRING_TOKENIZER_destroy(tokenizer2);
}
}
else if (strcmp(s_token, DEVICEID_TOKEN) == 0)
{
deviceIdString = STRING_clone(valueString);
if (deviceIdString != NULL)
{
config->deviceId = STRING_c_str(deviceIdString);
}
}
else if (strcmp(s_token, DEVICEKEY_TOKEN) == 0)
{
deviceKeyString = STRING_clone(valueString);
if (deviceKeyString != NULL)
{
config->deviceKey = STRING_c_str(deviceKeyString);
}
}
else if (strcmp(s_token, DEVICESAS_TOKEN) == 0)
{
deviceSasTokenString = STRING_clone(valueString);
if (deviceSasTokenString != NULL)
{
config->deviceSasToken = STRING_c_str(deviceSasTokenString);
}
}
/* Codes_SRS_IOTHUBCLIENT_LL_04_001: [IoTHubClient_LL_CreateFromConnectionString shall verify the existence of key/value pair GatewayHostName. If it does exist it shall pass the value to IoTHubClient_LL_Create API.] */
else if (strcmp(s_token, PROTOCOL_GATEWAY_HOST) == 0)
{
protocolGateway = STRING_clone(valueString);
if (protocolGateway != NULL)
{
config->protocolGatewayHostName = STRING_c_str(protocolGateway);
}
}
}
}
}
/* parsing is done - check the result */
if (config->iotHubName == NULL)
{
LogError("iotHubName is not found");
}
else if (config->iotHubSuffix == NULL)
{
LogError("iotHubSuffix is not found");
}
else if (config->deviceId == NULL)
{
LogError("deviceId is not found");
}
else if (config->deviceKey == NULL && config->deviceSasToken == NULL)
{
LogError("deviceKey/deviceSasToken not found");
}
else if (config->deviceKey != NULL && config->deviceSasToken != NULL)
{
LogError("Both device Key & SAS token are defined. Only one should be provided.");
}
else
{
/* Codes_SRS_IOTHUBCLIENT_LL_12_011: [IoTHubClient_LL_CreateFromConnectionString shall call into the IoTHubClient_LL_Create API with the current structure and returns with the return value of it] */
result = IoTHubClient_LL_Create(config);
if (result == NULL)
{
LogError("IoTHubClient_LL_Create failed");
}
else
{
/*return as is*/
}
}
}
if (deviceSasTokenString != NULL)
STRING_delete(deviceSasTokenString);
if (deviceKeyString != NULL)
STRING_delete(deviceKeyString);
if (deviceIdString != NULL)
STRING_delete(deviceIdString);
if (hostSuffixString != NULL)
STRING_delete(hostSuffixString);
if (hostNameString != NULL)
STRING_delete(hostNameString);
if (valueString != NULL)
STRING_delete(valueString);
if (tokenString != NULL)
STRING_delete(tokenString);
if (connString != NULL)
STRING_delete(connString);
if (protocolGateway != NULL)
STRING_delete(protocolGateway);
if (tokenizer1 != NULL)
STRING_TOKENIZER_destroy(tokenizer1);
free(config);
}
}
return result;
}
int main(void)
{
pc.baud(115200);
THREAD_HANDLE ThreadHandle;
(void)printf("Initializing mbed specific things...\r\n");
(void)printf("doing a one time EthernetInterface::init();\r\n");
if (EthernetInterface::init() != 0)
{
(void)printf("Failed EthernetInterface::init();\r\n");
return -1;
}
(void)printf("done doing a one time EthernetInterface::init();\r\n");
if (setupRealTime() != 0)
{
(void)printf("Failed setting up real time clock\r\n");
return -1;
}
/* clear the LED light upon startup */
red_led = 1;
blue_led = 1;
green_led = 1;
alarm_type = ALARM_NONE;
led_on = 0;
/* clear the screen */
lcd.cls();
if (ThreadAPI_Create(&ThreadHandle, LED_Update_Thread, NULL) != THREADAPI_OK)
{
(void)printf("Error spinning LED update thread.\r\n");
return -1;
}
/* initialize the IoTHubClient */
if (serializer_init(NULL) != SERIALIZER_OK)
{
(void)printf("Failed on serializer_init\r\n");
}
else
{
/* Setup IoTHub client configuration */
IOTHUB_CLIENT_LL_HANDLE iotHubClientHandle = IoTHubClient_LL_CreateFromConnectionString(connectionString, HTTP_Protocol);
if (iotHubClientHandle == NULL)
{
(void)printf("Failed on IoTHubClient_Create\r\n");
}
else
{
unsigned int minimumPollingTime = 9; /*because it can poll "after 9 seconds" polls will happen effectively at ~10 seconds*/
if (IoTHubClient_LL_SetOption(iotHubClientHandle, "MinimumPollingTime", &minimumPollingTime) != IOTHUB_CLIENT_OK)
{
printf("failure to set option \"MinimumPollingTime\"\r\n");
}
FrdmDevice* frdmDevice = CREATE_MODEL_INSTANCE(Contoso, FrdmDevice, true);
if (frdmDevice == NULL)
{
(void)printf("Failed on CREATE_MODEL_INSTANCE\r\n");
}
else
{
IOTHUB_CLIENT_RESULT setMessageResult = IoTHubClient_LL_SetMessageCallback(iotHubClientHandle, IoTHubMessage, frdmDevice);
if (setMessageResult != IOTHUB_CLIENT_OK)
{
(void)printf("unable to IoTHubClient_SetMessageCallback\r\n");
}
else
{
STRING_HANDLE commandsMetadata;
temp = (sensor.temp() * 9 / 5) + 32;
/* send the device info upon startup so that the cloud app knows
what commands are available and the fact that the device is up */
frdmDevice->ObjectType = "DeviceInfo-HW";
frdmDevice->ObjectName = "An ALARM device";
frdmDevice->Version = "1.0";
frdmDevice->SystemProperties.DeviceID = (char*)deviceId;
frdmDevice->SystemProperties.Enabled = true;
/* build the description of the commands on the device */
commandsMetadata = STRING_new();
if (commandsMetadata == NULL)
{
(void)printf("Failed on creating string for commands metadata\r\n");
}
else
{
/* Serialize the commands metadata as a JSON string before sending */
if (SchemaSerializer_SerializeCommandMetadata(GET_MODEL_HANDLE(Contoso, FrdmDevice), commandsMetadata) != SCHEMA_SERIALIZER_OK)
{
(void)printf("Failed serializing commands metadata\r\n");
}
else
{
frdmDevice->Commands = (char*)STRING_c_str(commandsMetadata);
/* Send the device information and commands metadata to the cloud */
{
unsigned char* destination;
size_t destinationSize;
if (SERIALIZE(&destination, &destinationSize, frdmDevice->ObjectName, frdmDevice->ObjectType, frdmDevice->SystemProperties, frdmDevice->Version, frdmDevice->Commands) != IOT_AGENT_OK)
{
(void)printf("Failed to serialize\r\n");
}
else
{
sendMessage(iotHubClientHandle, destination, destinationSize);
free(destination);
}
}
}
STRING_delete(commandsMetadata);
}
frdmDevice->ObjectName = (ascii_char_ptr)deviceId;
frdmDevice->ObjectType = "SensorTagEvent";
frdmDevice->Version = "1.0";
frdmDevice->TargetAlarmDevice = (ascii_char_ptr)deviceId;
while (1)
{
unsigned char* destination;
size_t destinationSize;
(void)printf("Sending %.02f\r\n", temp);
frdmDevice->temp = temp;
if (SERIALIZE(&destination, &destinationSize, frdmDevice->ObjectName, frdmDevice->ObjectType, frdmDevice->Version, frdmDevice->TargetAlarmDevice, frdmDevice->temp) != IOT_AGENT_OK)
{
(void)printf("Failed to serialize\r\n");
}
else
{
sendMessage(iotHubClientHandle, destination, destinationSize);
free(destination);
}
/* schedule IoTHubClient to send events/receive commands */
IoTHubClient_LL_DoWork(iotHubClientHandle);
}
}
DESTROY_MODEL_INSTANCE(frdmDevice);
}
IoTHubClient_LL_Destroy(iotHubClientHandle);
}
serializer_deinit();
}
}
static void remote_monitoring_run(void)
{
if (platform_init() != 0)
{
printf("Failed to initialize the platform.\r\n");
}
else
{
if (serializer_init(NULL) != SERIALIZER_OK)
{
printf("Failed on serializer_init\r\n");
}
else
{
IOTHUB_CLIENT_CONFIG config;
IOTHUB_CLIENT_HANDLE iotHubClientHandle;
config.deviceSasToken = NULL;
config.deviceId = deviceId;
config.deviceKey = deviceKey;
config.iotHubName = hubName;
config.iotHubSuffix = hubSuffix;
#ifndef WINCE
config.protocol = AMQP_Protocol;
#else
config.protocol = HTTP_Protocol;
#endif
iotHubClientHandle = IoTHubClient_Create(&config);
if (iotHubClientHandle == NULL)
{
(void)printf("Failed on IoTHubClient_CreateFromConnectionString\r\n");
}
else
{
#ifdef MBED_BUILD_TIMESTAMP
// For mbed add the certificate information
if (IoTHubClient_SetOption(iotHubClientHandle, "TrustedCerts", certificates) != IOTHUB_CLIENT_OK)
{
printf("failure to set option \"TrustedCerts\"\r\n");
}
#endif // MBED_BUILD_TIMESTAMP
Thermostat* thermostat = CREATE_MODEL_INSTANCE(Contoso, Thermostat);
if (thermostat == NULL)
{
(void)printf("Failed on CREATE_MODEL_INSTANCE\r\n");
}
else
{
STRING_HANDLE commandsMetadata;
if (IoTHubClient_SetMessageCallback(iotHubClientHandle, IoTHubMessage, thermostat) != IOTHUB_CLIENT_OK)
{
printf("unable to IoTHubClient_SetMessageCallback\r\n");
}
else
{
/* send the device info upon startup so that the cloud app knows
what commands are available and the fact that the device is up */
thermostat->ObjectType = "DeviceInfo";
thermostat->IsSimulatedDevice = false;
thermostat->Version = "1.0";
thermostat->DeviceProperties.HubEnabledState = true;
thermostat->DeviceProperties.DeviceID = (char*)deviceId;
commandsMetadata = STRING_new();
if (commandsMetadata == NULL)
{
(void)printf("Failed on creating string for commands metadata\r\n");
}
else
{
/* Serialize the commands metadata as a JSON string before sending */
if (SchemaSerializer_SerializeCommandMetadata(GET_MODEL_HANDLE(Contoso, Thermostat), commandsMetadata) != SCHEMA_SERIALIZER_OK)
{
(void)printf("Failed serializing commands metadata\r\n");
}
else
{
unsigned char* buffer;
size_t bufferSize;
thermostat->Commands = (char*)STRING_c_str(commandsMetadata);
/* Here is the actual send of the Device Info */
if (SERIALIZE(&buffer, &bufferSize, thermostat->ObjectType, thermostat->Version, thermostat->IsSimulatedDevice, thermostat->DeviceProperties, thermostat->Commands) != IOT_AGENT_OK)
{
(void)printf("Failed serializing\r\n");
}
else
{
sendMessage(iotHubClientHandle, buffer, bufferSize);
}
}
STRING_delete(commandsMetadata);
}
thermostat->Temperature = 50;
thermostat->ExternalTemperature = 55;
thermostat->Humidity = 50;
thermostat->DeviceId = (char*)deviceId;
while (1)
{
unsigned char*buffer;
size_t bufferSize;
float tempC = -300.0;
float pressurePa = -300;
float humidityPct = -300;
int sensorResult = bme280_read_sensors(&tempC, &pressurePa, &humidityPct);
if (sensorResult == 1)
{
thermostat->Temperature = tempC;
thermostat->Humidity = humidityPct;
printf("Humidity = %.1f%% Temperature = %.1f*C \n",
humidityPct, tempC);
pinMode(Grn_led_pin, OUTPUT);
}
else
{
thermostat->Temperature = 404.0;
thermostat->Humidity = 404.0;
printf("Unable to read BME280 on pin %i\n", Spi_channel);
pinMode(Red_led_pin, OUTPUT);
}
(void)printf("Sending sensor value Temperature = %.1f*C, Humidity = %.1f%%\r\n", thermostat->Temperature, thermostat->Humidity);
if (SERIALIZE(&buffer, &bufferSize, thermostat->DeviceId, thermostat->Temperature, thermostat->Humidity, thermostat->ExternalTemperature) != IOT_AGENT_OK)
{
(void)printf("Failed sending sensor value\r\n");
}
else
{
sendMessage(iotHubClientHandle, buffer, bufferSize);
}
ThreadAPI_Sleep(1000);
}
}
close_lockfile(Lock_fd);
DESTROY_MODEL_INSTANCE(thermostat);
}
IoTHubClient_Destroy(iotHubClientHandle);
}
serializer_deinit();
}
platform_deinit();
}
}
JSON_ENCODER_RESULT JSONEncoder_EncodeTree(MULTITREE_HANDLE treeHandle, STRING_HANDLE destination, JSON_ENCODER_TOSTRING_FUNC toStringFunc)
{
JSON_ENCODER_RESULT result;
size_t childCount;
/* Codes_SRS_JSON_ENCODER_99_032:[If any of the arguments passed to JSONEncoder_EncodeTree is NULL then JSON_ENCODER_INVALID_ARG shall be returned.] */
if ((treeHandle == NULL) ||
(destination == NULL) ||
(toStringFunc == NULL))
{
result = JSON_ENCODER_INVALID_ARG;
LogError("(result = %s)\r\n", ENUM_TO_STRING(JSON_ENCODER_RESULT, result));
}
/*Codes_SRS_JSON_ENCODER_99_035:[ JSON encoder shall inquire the number of child nodes (further called childCount) of the current node (given by parameter treeHandle.]*/
else if (MultiTree_GetChildCount(treeHandle, &childCount) != MULTITREE_OK)
{
result = JSON_ENCODER_MULTITREE_ERROR;
LogError("(result = %s)\r\n", ENUM_TO_STRING(JSON_ENCODER_RESULT, result));
}
else
{
size_t i;
/*Codes_SRS_JSON_ENCODER_99_036:[ The string "{" shall be added to the output;]*/
if (STRING_concat(destination, "{") != 0)
{
result = JSON_ENCODER_ERROR;
LogError("(result = %s)\r\n", ENUM_TO_STRING(JSON_ENCODER_RESULT, result));
}
else
{
result = JSON_ENCODER_OK;
for (i = 0; (i < childCount) && (result == JSON_ENCODER_OK); i++)
{
MULTITREE_HANDLE childTreeHandle;
if ((i > 0) &&
(STRING_concat(destination, ", ") != 0))
{
result = JSON_ENCODER_ERROR;
LogError("(result = %s)\r\n", ENUM_TO_STRING(JSON_ENCODER_RESULT, result));
}
else if (STRING_concat(destination, "\"") != 0)
{
result = JSON_ENCODER_ERROR;
LogError("(result = %s)\r\n", ENUM_TO_STRING(JSON_ENCODER_RESULT, result));
}
else
{
STRING_HANDLE name = STRING_new();
if (name == NULL)
{
result = JSON_ENCODER_ERROR;
LogError("(result = %s)\r\n", ENUM_TO_STRING(JSON_ENCODER_RESULT, result));
}
else
{
if (MultiTree_GetChild(treeHandle, i, &childTreeHandle) != MULTITREE_OK)
{
result = JSON_ENCODER_MULTITREE_ERROR;
LogError("(result = %s)\r\n", ENUM_TO_STRING(JSON_ENCODER_RESULT, result));
}
else if (MultiTree_GetName(childTreeHandle, name) != MULTITREE_OK)
{
result = JSON_ENCODER_MULTITREE_ERROR;
LogError("(result = %s)\r\n", ENUM_TO_STRING(JSON_ENCODER_RESULT, result));
}
else if (STRING_concat_with_STRING(destination, name) != 0)
{
result = JSON_ENCODER_ERROR;
LogError("(result = %s)\r\n", ENUM_TO_STRING(JSON_ENCODER_RESULT, result));
}
else if (STRING_concat(destination, "\":") != 0)
{
result = JSON_ENCODER_ERROR;
LogError("(result = %s)\r\n", ENUM_TO_STRING(JSON_ENCODER_RESULT, result));
}
else
{
size_t innerChildCount;
if (MultiTree_GetChildCount(childTreeHandle, &innerChildCount) != MULTITREE_OK)
{
result = JSON_ENCODER_MULTITREE_ERROR;
LogError("(result = %s)\r\n", ENUM_TO_STRING(JSON_ENCODER_RESULT, result));
}
else
{
if (innerChildCount > 0)
{
STRING_HANDLE child = STRING_new();
if (child == NULL)
{
result = JSON_ENCODER_ERROR;
LogError("(result = %s)\r\n", ENUM_TO_STRING(JSON_ENCODER_RESULT, result));
}
else
{
if ((result = JSONEncoder_EncodeTree(childTreeHandle, child, toStringFunc)) != JSON_ENCODER_OK)
{
LogError("(result = %s)\r\n", ENUM_TO_STRING(JSON_ENCODER_RESULT, result));
}
else if (STRING_concat_with_STRING(destination, child)!=0)
{
result = JSON_ENCODER_ERROR;
LogError("(result = %s)\r\n", ENUM_TO_STRING(JSON_ENCODER_RESULT, result));
}
STRING_delete(child);
}
}
else
{
const void* value;
if (MultiTree_GetValue(childTreeHandle, &value) != MULTITREE_OK)
{
result = JSON_ENCODER_MULTITREE_ERROR;
LogError("(result = %s)\r\n", ENUM_TO_STRING(JSON_ENCODER_RESULT, result));
}
else
{
STRING_HANDLE childValue = STRING_new();
if (childValue == NULL)
{
result = JSON_ENCODER_ERROR;
LogError("(result = %s)\r\n", ENUM_TO_STRING(JSON_ENCODER_RESULT, result));
}
else
{
if (toStringFunc(childValue, value) != JSON_ENCODER_TOSTRING_OK)
{
result = JSON_ENCODER_TOSTRING_FUNCTION_ERROR;
LogError("(result = %s)\r\n", ENUM_TO_STRING(JSON_ENCODER_RESULT, result));
}
else if (STRING_concat_with_STRING(destination, childValue)!=0)
{
result = JSON_ENCODER_ERROR;
LogError("(result = %s)\r\n", ENUM_TO_STRING(JSON_ENCODER_RESULT, result));
}
else
{
/*do nothing, result = JSON_ENCODER_OK is set above at the beginning of the FOR loop*/
}
STRING_delete(childValue);
}
}
}
}
}
STRING_delete(name);
}
}
}
if ((i == childCount) && (result == JSON_ENCODER_OK))
{
if (STRING_concat(destination, "}") != 0)
{
result = JSON_ENCODER_ERROR;
LogError("(result = %s)\r\n", ENUM_TO_STRING(JSON_ENCODER_RESULT, result));
}
else
{
/* Codes_SRS_JSON_ENCODER_99_031:[On success, JSONEncoder_EncodeTree shall return JSON_ENCODER_OK.] */
result = JSON_ENCODER_OK;
}
}
}
}
return result;
#ifdef _MSC_VER
#pragma warning(disable: 4701) /* potentially uninitialized local variable 'result' used */ /* the scanner cannot track variable "i" and link it to childCount*/
#endif
}
void remote_monitoring_run(void)
{
if (serializer_init(NULL) != SERIALIZER_OK)
{
printf("Failed on serializer_init\r\n");
}
else
{
IOTHUB_CLIENT_CONFIG config;
config.deviceId = deviceId;
config.deviceKey = deviceKey;
config.iotHubName = hubName;
config.iotHubSuffix = hubSuffix;
config.protocol = AMQP_Protocol;
IOTHUB_CLIENT_HANDLE iotHubClientHandle = IoTHubClient_Create(&config);
if (iotHubClientHandle == NULL)
{
(void)printf("Failed on IoTHubClient_CreateFromConnectionString\r\n");
}
else
{
unsigned int minimumPollingTime = 9; /*because it can poll "after 9 seconds" polls will happen effectively at ~10 seconds*/
if (IoTHubClient_SetOption(iotHubClientHandle, "MinimumPollingTime", &minimumPollingTime) != IOTHUB_CLIENT_OK)
{
printf("failure to set option \"MinimumPollingTime\"\r\n");
}
#ifdef MBED_BUILD_TIMESTAMP
// For mbed add the certificate information
if (IoTHubClient_SetOption(iotHubClientHandle, "TrustedCerts", certificates) != IOTHUB_CLIENT_OK)
{
printf("failure to set option \"TrustedCerts\"\r\n");
}
#endif // MBED_BUILD_TIMESTAMP
Thermostat* thermostat = CREATE_MODEL_INSTANCE(Contoso, Thermostat);
if (thermostat == NULL)
{
(void)printf("Failed on CREATE_MODEL_INSTANCE\r\n");
}
else
{
STRING_HANDLE commandsMetadata;
if (IoTHubClient_SetMessageCallback(iotHubClientHandle, IoTHubMessage, thermostat) != IOTHUB_CLIENT_OK)
{
printf("unable to IoTHubClient_SetMessageCallback\r\n");
}
else
{
/* send the device info upon startup so that the cloud app knows
what commands are available and the fact that the device is up */
thermostat->ObjectType = "DeviceInfo";
thermostat->IsSimulatedDevice = false;
thermostat->Version = "1.0";
thermostat->DeviceProperties.HubEnabledState = true;
thermostat->DeviceProperties.DeviceID = (char*)deviceId;
commandsMetadata = STRING_new();
if (commandsMetadata == NULL)
{
(void)printf("Failed on creating string for commands metadata\r\n");
}
else
{
/* Serialize the commands metadata as a JSON string before sending */
if (SchemaSerializer_SerializeCommandMetadata(GET_MODEL_HANDLE(Contoso, Thermostat), commandsMetadata) != SCHEMA_SERIALIZER_OK)
{
(void)printf("Failed serializing commands metadata\r\n");
}
else
{
unsigned char* buffer;
size_t bufferSize;
thermostat->Commands = (char*)STRING_c_str(commandsMetadata);
/* Here is the actual send of the Device Info */
if (SERIALIZE(&buffer, &bufferSize, thermostat->ObjectType, thermostat->Version, thermostat->IsSimulatedDevice, thermostat->DeviceProperties, thermostat->Commands) != IOT_AGENT_OK)
{
(void)printf("Failed serializing\r\n");
}
else
{
sendMessage(iotHubClientHandle, buffer, bufferSize);
}
}
STRING_delete(commandsMetadata);
}
thermostat->Temperature = 50.0;
thermostat->Humidity = 50.0;
thermostat->DeviceId = (char*)deviceId;
while (1)
{
unsigned char*buffer;
size_t bufferSize;
(void)printf("Sending sensor value Temperature = %02f, Humidity = %02f\r\n", thermostat->Temperature, thermostat->Humidity);
if (SERIALIZE(&buffer, &bufferSize, thermostat->Temperature, thermostat->Humidity, thermostat->DeviceId) != IOT_AGENT_OK)
{
(void)printf("Failed sending sensor value\r\n");
}
else
{
sendMessage(iotHubClientHandle, buffer, bufferSize);
}
ThreadAPI_Sleep(1000);
}
}
DESTROY_MODEL_INSTANCE(thermostat);
}
IoTHubClient_Destroy(iotHubClientHandle);
}
serializer_deinit();
}
}
void ERROR_define(const char *pattern, char *arg[])
{
uchar c;
char *msg = NULL;
int len;
int narg = 0;
ERROR_clear();
if ((intptr_t)pattern >= 0 && (intptr_t)pattern < 256)
{
ERROR_current->info.code = (int)(intptr_t)pattern;
pattern = _message[(int)(intptr_t)pattern];
if (*pattern == '.')
{
narg = pattern[1] - '0';
pattern += 2;
}
}
else if ((intptr_t)pattern == E_ABORT)
{
ERROR_current->info.code = E_ABORT;
pattern = "";
}
else
{
ERROR_current->info.code = E_CUSTOM;
if (arg)
{
msg = (char *)pattern;
for (;;)
{
c = *msg++;
if (c == 0)
break;
if (c == '&')
{
c = *msg++;
if (c >= '1' && c <= '4')
{
c -= '0';
if (c > narg)
narg = c;
}
}
}
}
}
if (narg)
{
len = get_message_length(pattern, arg, narg);
if (len)
{
msg = STRING_new(NULL, len);
ERROR_current->info.msg = msg;
ERROR_current->info.free = TRUE;
if (EXEC_debug)
{
int i;
strcpy(msg, pattern);
msg += strlen(pattern);
for (i = 0; i < narg; i++)
{
*msg++ = '|';
if (arg[i])
{
strcpy(msg, arg[i]);
msg += strlen(arg[i]);
}
}
}
else
{
for (;;)
{
c = *pattern++;
if (c == 0)
break;
if (c == '&')
{
c = *pattern++;
if (c >= '1' && c <= '4')
{
c -= '1';
if (arg[c])
{
len = strlen(arg[c]);
memcpy(msg, arg[c], len);
msg += len;
}
}
}
else
*msg++ = c;
}
*msg = 0;
}
/*fprintf(stderr, "msg: %s\n", ERROR_current->info.msg);
if (strcmp(ERROR_current->info.msg, "Type mismatch: wanted WebView, got Function instead") == 0)
{
BREAKPOINT();
STRING_watch = ERROR_current->info.msg;
}*/
}
}
else if (ERROR_current->info.code == E_CUSTOM)
{
if (pattern && *pattern)
{
ERROR_current->info.msg = STRING_new_zero(pattern);
ERROR_current->info.free = TRUE;
}
else
{
ERROR_current->info.msg = (char *)_message[E_UNKNOWN];
ERROR_current->info.free = FALSE;
}
}
else
{
ERROR_current->info.msg = (char *)pattern;
ERROR_current->info.free = FALSE;
}
//fprintf(stderr, "ERROR_define: %p %d '%s'\n", ERROR_current, ERROR_current->info.code, ERROR_current->info.msg);
//STRING_add_char(&ERROR_current->info.msg, 0);
ERROR_current->info.cp = CP;
ERROR_current->info.fp = FP;
ERROR_current->info.pc = PC;
#if DEBUG_ERROR
ERROR_debug("ERROR_define: %s\n", ERROR_current->info.msg);
#endif
}
static bool checkAndTryToConnect(PMQTTTAPI_HANDLE_DATA mqttApiState)
{
bool result;
if (mqttApiState != NULL)
{
if (!mqttApiState->connected)
{
/* Codes_SRS_MQTTAPI_04_062: [MQTTAPI_create shall generate SAS Token with an expiring time of 1 hour.] */
size_t secondsSinceEpoch = (size_t)(difftime(get_time(NULL), EPOCH_TIME_T_VALUE) + 0);
size_t possibleNewExpiry = secondsSinceEpoch + mqttApiState->sasTokenLifetime;
STRING_HANDLE zeroLengthString;
if ((zeroLengthString = STRING_new()) == NULL)
{
LogError("Could not generate zeroLenghtString for skn. \r\n");
result = false;
}
else
{
STRING_HANDLE newSASToken = SASToken_Create(mqttApiState->device_key, mqttApiState->sasTokenSr, zeroLengthString, possibleNewExpiry);
if (newSASToken == NULL)
{
LogError("Could not generate a SAS Token\r\n");
result = false;
}
else
{
/* Codes_SRS_MQTTAPI_04_024: [MQTTAPI_Create shall call underlying library connection functions to establish connection with the server.] */
if (!connectToMQTTServer(mqttApiState->client, STRING_c_str(mqttApiState->device_id), STRING_c_str(newSASToken)))
{
/* Tests_SRS_MQTTAPI_04_025: [If connection fails MQTTAPI_Create shall return NULL. */
result = false;
}
else
{
mqttApiState->connected = true;
mqttApiState->lastExpiryUsed = possibleNewExpiry;
result = true;
}
STRING_delete(newSASToken);
}
STRING_delete(zeroLengthString);
}
}
else
{
//Here is the point that we need to check if we need to disconnect, generate a new SAS Token and Connect Again.
size_t secondsSinceEpoch;
int differenceWithLastExpiry;
secondsSinceEpoch = (size_t)(difftime(get_time(NULL), EPOCH_TIME_T_VALUE) + 0);
differenceWithLastExpiry = mqttApiState->lastExpiryUsed - secondsSinceEpoch;
/* Codes_SRS_MQTTAPI_04_063: [DoWork shall check the SAS Token Expiration time for the current connection. If the token is near to expire and there is no pending item, it shall disconnect, generate a new SAS Token with 1 hour expiration and connect again.] */
if ((differenceWithLastExpiry <= 0) ||
(((size_t)differenceWithLastExpiry) < mqttApiState->sasRefreshLine && DList_IsListEmpty(&(mqttApiState->messagesSent))
)
) // Within refresh minutes (or past if negative) of the expiration
{
/* First Disconnect */
/* Codes_SRS_MQTTAPI_04_064: [If the token is expired we shall disconnect, signal that all pending message are failed due to Token Expired.] */
if (MQTTClient_disconnect(mqttApiState->client, 0) != MQTTCLIENT_SUCCESS)
{
LogError("Token is Expired or about to be expired and Disconnect Failed. \r\n");
}
else
{
size_t possibleNewExpiry = secondsSinceEpoch + mqttApiState->sasTokenLifetime;
STRING_HANDLE zeroLengthString;
if ((zeroLengthString = STRING_new()) == NULL)
{
LogError("Could not generate zeroLenghtString for skn. \r\n");
result = false;
}
else
{
STRING_HANDLE newSASToken = SASToken_Create(mqttApiState->device_key, mqttApiState->sasTokenSr, zeroLengthString, possibleNewExpiry);
mqttApiState->connected = false;
if (newSASToken == NULL)
{
LogError("Could not generate a SAS Token\r\n");
result = false;
}
else
{
/* Codes_SRS_MQTTAPI_04_024: [MQTTAPI_Create shall call underlying library connection functions to establish connection with the server.] */
if (!connectToMQTTServer(mqttApiState->client, STRING_c_str(mqttApiState->device_id), STRING_c_str(newSASToken)))
{
/* Tests_SRS_MQTTAPI_04_025: [If connection fails MQTTAPI_Create shall return NULL. */
result = false;
}
else
{
mqttApiState->connected = true;
mqttApiState->lastExpiryUsed = possibleNewExpiry;
if (mqttApiState->subscribed)
{
int rc;
LogInfo("Trying to Subscribe after reconnect.\r\n");
if ((rc = MQTTClient_subscribe(mqttApiState->client, STRING_c_str(mqttApiState->subscribedTopicHandleData->topicName), SUBSCRIBEQOS)) != MQTTCLIENT_SUCCESS)
{
LogError("Could not subscribe again. Won't be able to receive messages. Error Code: %d.\r\n", rc);
}
else
{
LogInfo("Subscribed succesfully after reconnect..\r\n");
}
}
result = true;
}
STRING_delete(newSASToken);
}
STRING_delete(zeroLengthString);
}
}
}
result = true;
}
}
else
{
LogError("Invalid Arg. Handle is NULL. \r\n");
result = false;
}
return result;
}
IOTHUB_SERVICE_CLIENT_AUTH_HANDLE IoTHubServiceClientAuth_CreateFromConnectionString(const char* connectionString)
{
IOTHUB_SERVICE_CLIENT_AUTH_HANDLE result;
/*Codes_SRS_IOTHUBSERVICECLIENT_12_001: [** IoTHubServiceClientAuth_CreateFromConnectionString shall verify the input parameter and if it is NULL then return NULL **]*/
if (connectionString == NULL)
{
LogError("Input parameter is NULL: connectionString");
result = NULL;
}
else
{
/*Codes_SRS_IOTHUBSERVICECLIENT_12_002: [** IoTHubServiceClientAuth_CreateFromConnectionString shall allocate memory for a new service client instance. **] */
result = malloc(sizeof(IOTHUB_SERVICE_CLIENT_AUTH));
if (result == NULL)
{
/*Codes_SRS_IOTHUBSERVICECLIENT_12_003: [** If the allocation failed, IoTHubServiceClientAuth_CreateFromConnectionString shall return NULL **] */
LogError("Malloc failed for IOTHUB_SERVICE_CLIENT_AUTH");
}
else
{
/*Codes_SRS_IOTHUBSERVICECLIENT_12_009: [** IoTHubServiceClientAuth_CreateFromConnectionString shall create a STRING_HANDLE from the given connection string by calling STRING_construct. **] */
STRING_HANDLE connection_string;
if ((connection_string = STRING_construct(connectionString)) == NULL)
{
/*Codes_SRS_IOTHUBSERVICECLIENT_12_010: [** If the STRING_construct fails, IoTHubServiceClientAuth_CreateFromConnectionString shall do clean up and return NULL. **] */
LogError("STRING_construct failed");
free(result);
result = NULL;
}
else
{
/*Codes_SRS_IOTHUBSERVICECLIENT_12_004: [** IoTHubServiceClientAuth_CreateFromConnectionString shall populate hostName, iotHubName, iotHubSuffix, sharedAccessKeyName, sharedAccessKeyValue from the given connection string by calling connectionstringparser_parse **] */
MAP_HANDLE connection_string_values_map;
if ((connection_string_values_map = connectionstringparser_parse(connection_string)) == NULL)
{
/*Codes_SRS_IOTHUBSERVICECLIENT_12_005: [** If populating the IOTHUB_SERVICE_CLIENT_AUTH fails, IoTHubServiceClientAuth_CreateFromConnectionString shall do clean up and return NULL **] */
LogError("Tokenizing failed on connectionString");
free(result);
result = NULL;
}
else
{
STRING_TOKENIZER_HANDLE tokenizer = NULL;
STRING_HANDLE token_key_string = NULL;
STRING_HANDLE token_value_string = NULL;
STRING_HANDLE host_name_string = NULL;
const char* hostName;
const char* keyName;
const char* sharedAccessKey;
const char* iothubName;
const char* iothubSuffix;
/*Codes_SRS_IOTHUBSERVICECLIENT_12_004: [** IoTHubServiceClientAuth_CreateFromConnectionString shall populate hostName, iotHubName, iotHubSuffix, sharedAccessKeyName, sharedAccessKeyValue from the given connection string by calling connectionstringparser_parse **] */
(void)memset(result, 0, sizeof(IOTHUB_SERVICE_CLIENT_AUTH));
if ((hostName = Map_GetValueFromKey(connection_string_values_map, IOTHUBHOSTNAME)) == NULL)
{
/*Codes_SRS_IOTHUBSERVICECLIENT_12_011: [** If the populating HostName fails, IoTHubServiceClientAuth_CreateFromConnectionString shall do clean up and return NULL. **] */
LogError("Couldn't find %s in connection string", IOTHUBHOSTNAME);
free(result);
result = NULL;
}
else if ((keyName = Map_GetValueFromKey(connection_string_values_map, IOTHUBSHAREDACESSKEYNAME)) == NULL)
{
/*Codes_SRS_IOTHUBSERVICECLIENT_12_012: [** If the populating SharedAccessKeyName fails, IoTHubServiceClientAuth_CreateFromConnectionString shall do clean up and return NULL. **] */
LogError("Couldn't find %s in connection string", IOTHUBSHAREDACESSKEYNAME);
free(result);
result = NULL;
}
else if ((sharedAccessKey = Map_GetValueFromKey(connection_string_values_map, IOTHUBSHAREDACESSKEY)) == NULL)
{
/*Codes_SRS_IOTHUBSERVICECLIENT_12_013: [** If the populating SharedAccessKey fails, IoTHubServiceClientAuth_CreateFromConnectionString shall do clean up and return NULL. **] */
LogError("Couldn't find %s in connection string", IOTHUBSHAREDACESSKEY);
free(result);
result = NULL;
}
/*Codes_SRS_IOTHUBSERVICECLIENT_12_038: [** IoTHubServiceClientAuth_CreateFromConnectionString shall create a STRING_handle from hostName by calling STRING_construct. **] */
else if ((host_name_string = STRING_construct(hostName)) == NULL)
{
/*Codes_SRS_IOTHUBSERVICECLIENT_12_039: [** If the STRING_construct fails, IoTHubServiceClientAuth_CreateFromConnectionString shall do clean up and return NULL. **] */
LogError("STRING_construct failed");
free(result);
result = NULL;
}
/*Codes_SRS_IOTHUBSERVICECLIENT_12_014: [** IoTHubServiceClientAuth_CreateFromConnectionString shall create a STRING_TOKENIZER to parse HostName by calling STRING_TOKENIZER_create. **] */
else if ((tokenizer = STRING_TOKENIZER_create(host_name_string)) == NULL)
{
/*Codes_SRS_IOTHUBSERVICECLIENT_12_015: [** If the STRING_TOKENIZER_create fails, IoTHubServiceClientAuth_CreateFromConnectionString shall do clean up and return NULL. **] */
LogError("Error creating STRING tokenizer");
free(result);
result = NULL;
}
/*Codes_SRS_IOTHUBSERVICECLIENT_12_016: [** IoTHubServiceClientAuth_CreateFromConnectionString shall create a new STRING_HANDLE for token key string by calling STRING_new. **] */
else if ((token_key_string = STRING_new()) == NULL)
{
/*Codes_SRS_IOTHUBSERVICECLIENT_12_017: [** If the STRING_new fails, IoTHubServiceClientAuth_CreateFromConnectionString shall do clean up and return NULL. **] */
LogError("Error creating key token STRING_HANDLE");
free(result);
result = NULL;
}
/*Codes_SRS_IOTHUBSERVICECLIENT_12_018: [** IoTHubServiceClientAuth_CreateFromConnectionString shall create a new STRING_HANDLE for token value string by calling STRING_new. **] */
else if ((token_value_string = STRING_new()) == NULL)
{
/*Codes_SRS_IOTHUBSERVICECLIENT_12_019: [** If the STRING_new fails, IoTHubServiceClientAuth_CreateFromConnectionString shall do clean up and return NULL. **] */
LogError("Error creating value token STRING_HANDLE");
free(result);
result = NULL;
}
/*Codes_SRS_IOTHUBSERVICECLIENT_12_020: [** IoTHubServiceClientAuth_CreateFromConnectionString shall call STRING_TOKENIZER_get_next_token to get token key string. **] */
else if (STRING_TOKENIZER_get_next_token(tokenizer, token_key_string, ".") != 0)
{
/*Codes_SRS_IOTHUBSERVICECLIENT_12_021: [** If the STRING_TOKENIZER_get_next_token fails, IoTHubServiceClientAuth_CreateFromConnectionString shall do clean up and return NULL. **] */
LogError("Error reading key token STRING");
free(result);
result = NULL;
}
/*Codes_SRS_IOTHUBSERVICECLIENT_12_022: [** IoTHubServiceClientAuth_CreateFromConnectionString shall call STRING_TOKENIZER_get_next_token to get token value string. **] */
else if (STRING_TOKENIZER_get_next_token(tokenizer, token_value_string, "0") != 0)
{
/*Codes_SRS_IOTHUBSERVICECLIENT_12_023: [** If the STRING_TOKENIZER_get_next_token fails, IoTHubServiceClientAuth_CreateFromConnectionString shall do clean up and return NULL. **] */
LogError("Error reading value token STRING");
free(result);
result = NULL;
}
/*Codes_SRS_IOTHUBSERVICECLIENT_12_024: [** IoTHubServiceClientAuth_CreateFromConnectionString shall allocate memory and copy hostName to result->hostName by calling mallocAndStrcpy_s. **] */
else if (mallocAndStrcpy_s(&result->hostname, hostName) != 0)
{
/*Codes_SRS_IOTHUBSERVICECLIENT_12_025: [** If the mallocAndStrcpy_s fails, IoTHubServiceClientAuth_CreateFromConnectionString shall do clean up and return NULL. **] */
LogError("mallocAndStrcpy_s failed for hostName");
free(result);
result = NULL;
}
/*Codes_SRS_IOTHUBSERVICECLIENT_12_026: [** IoTHubServiceClientAuth_CreateFromConnectionString shall allocate memory and copy keyName to result->keyName by calling mallocAndStrcpy_s. **] */
else if (mallocAndStrcpy_s(&result->keyName, keyName) != 0)
{
/*Codes_SRS_IOTHUBSERVICECLIENT_12_027: [** If the mallocAndStrcpy_s fails, IoTHubServiceClientAuth_CreateFromConnectionString shall do clean up and return NULL. **] */
LogError("mallocAndStrcpy_s failed for keyName");
free(result->hostname);
free(result);
result = NULL;
}
/*Codes_SRS_IOTHUBSERVICECLIENT_12_028: [** IoTHubServiceClientAuth_CreateFromConnectionString shall allocate memory and copy sharedAccessKey to result->sharedAccessKey by calling mallocAndStrcpy_s. **] */
else if (mallocAndStrcpy_s(&result->sharedAccessKey, sharedAccessKey) != 0)
{
/*Codes_SRS_IOTHUBSERVICECLIENT_12_029: [** If the mallocAndStrcpy_s fails, IoTHubServiceClientAuth_CreateFromConnectionString shall do clean up and return NULL. **] */
LogError("mallocAndStrcpy_s failed for sharedAccessKey");
free(result->hostname);
free(result->keyName);
free(result);
result = NULL;
}
/*Codes_SRS_IOTHUBSERVICECLIENT_12_034: [** IoTHubServiceClientAuth_CreateFromConnectionString shall create C string from token key string handle by calling STRING_c_str. **] */
else if ((iothubName = STRING_c_str(token_key_string)) == NULL)
{
/*Codes_SRS_IOTHUBSERVICECLIENT_12_035 : [** If the STRING_c_str fails, IoTHubServiceClientAuth_CreateFromConnectionString shall do clean up and return NULL. **] */
LogError("STRING_c_str failed for iothubName");
free(result->hostname);
free(result->keyName);
free(result->sharedAccessKey);
free(result);
result = NULL;
}
/*Codes_SRS_IOTHUBSERVICECLIENT_12_036 : [** IoTHubServiceClientAuth_CreateFromConnectionString shall create C string from token value string handle by calling STRING_c_str. **] */
else if ((iothubSuffix = STRING_c_str(token_value_string)) == NULL)
{
/*Codes_SRS_IOTHUBSERVICECLIENT_12_037 : [** If the mallocAndStrcpy_s fails, IoTHubServiceClientAuth_CreateFromConnectionString shall do clean up and return NULL. **] */
LogError("STRING_c_str failed for iothubSuffix");
free(result->hostname);
free(result->keyName);
free(result->sharedAccessKey);
free(result);
result = NULL;
}
/*Codes_SRS_IOTHUBSERVICECLIENT_12_030: [** IoTHubServiceClientAuth_CreateFromConnectionString shall allocate memory and copy iothubName to result->iothubName by calling mallocAndStrcpy_s. **] */
else if (mallocAndStrcpy_s(&result->iothubName, iothubName) != 0)
{
/*Codes_SRS_IOTHUBSERVICECLIENT_12_031 : [** If the mallocAndStrcpy_s fails, IoTHubServiceClientAuth_CreateFromConnectionString shall do clean up and return NULL. **] */
LogError("mallocAndStrcpy_s failed for sharedAccessKey");
free(result->hostname);
free(result->keyName);
free(result->sharedAccessKey);
free(result);
result = NULL;
}
/*Codes_SRS_IOTHUBSERVICECLIENT_12_032: [** IoTHubServiceClientAuth_CreateFromConnectionString shall allocate memory and copy iothubSuffix to result->iothubSuffix by calling mallocAndStrcpy_s. **] */
else if (mallocAndStrcpy_s(&result->iothubSuffix, iothubSuffix) != 0)
{
/*Codes_SRS_IOTHUBSERVICECLIENT_12_033 : [** If the mallocAndStrcpy_s fails, IoTHubServiceClientAuth_CreateFromConnectionString shall do clean up and return NULL. **] */
LogError("mallocAndStrcpy_s failed for sharedAccessKey");
free(result->hostname);
free(result->keyName);
free(result->sharedAccessKey);
free(result->iothubName);
free(result);
result = NULL;
}
/*Codes_SRS_IOTHUBSERVICECLIENT_12_006: [** If the IOTHUB_SERVICE_CLIENT_AUTH has been populated IoTHubServiceClientAuth_CreateFromConnectionString shall do clean up and return with a IOTHUB_SERVICE_CLIENT_AUTH_HANDLE to it **] */
STRING_delete(token_key_string);
STRING_delete(token_value_string);
STRING_delete(host_name_string);
STRING_TOKENIZER_destroy(tokenizer);
Map_Destroy(connection_string_values_map);
}
STRING_delete(connection_string);
}
}
}
return result;
}
STRING_HANDLE SASToken_Create(STRING_HANDLE key, STRING_HANDLE scope, STRING_HANDLE keyName, size_t expiry)
{
STRING_HANDLE result = NULL;
char tokenExpirationTime[32] = { 0 };
/*Codes_SRS_SASTOKEN_06_001: [If key is NULL then SASToken_Create shall return NULL.]*/
/*Codes_SRS_SASTOKEN_06_003: [If scope is NULL then SASToken_Create shall return NULL.]*/
/*Codes_SRS_SASTOKEN_06_007: [If keyName is NULL then SASToken_Create shall return NULL.]*/
if ((key == NULL) ||
(scope == NULL) ||
(keyName == NULL))
{
LogError("Invalid Parameter to SASToken_Create. handle key: %p, handle scope: %p, handle keyName: %p\r\n", key, scope, keyName);
}
else
{
BUFFER_HANDLE decodedKey;
/*Codes_SRS_SASTOKEN_06_029: [The key parameter is decoded from base64.]*/
if ((decodedKey = Base64_Decoder(STRING_c_str(key))) == NULL)
{
/*Codes_SRS_SASTOKEN_06_030: [If there is an error in the decoding then SASToken_Create shall return NULL.]*/
LogError("Unable to decode the key for generating the SAS.\r\n");
}
else
{
/*Codes_SRS_SASTOKEN_06_026: [If the conversion to string form fails for any reason then SASToken_Create shall return NULL.]*/
if (size_tToString(tokenExpirationTime, sizeof(tokenExpirationTime), expiry) != 0)
{
LogError("For some reason converting seconds to a string failed. No SAS can be generated.\r\n");
}
else
{
STRING_HANDLE toBeHashed = NULL;
BUFFER_HANDLE hash = NULL;
if (((hash = BUFFER_new()) == NULL) ||
((toBeHashed = STRING_new()) == NULL) ||
((result = STRING_new()) == NULL))
{
LogError("Unable to allocate memory to prepare SAS token.\r\n")
}
else
{
/*Codes_SRS_SASTOKEN_06_009: [The scope is the basis for creating a STRING_HANDLE.]*/
/*Codes_SRS_SASTOKEN_06_010: [A "\n" is appended to that string.]*/
/*Codes_SRS_SASTOKEN_06_011: [tokenExpirationTime is appended to that string.]*/
if ((STRING_concat_with_STRING(toBeHashed, scope) != 0) ||
(STRING_concat(toBeHashed, "\n") != 0) ||
(STRING_concat(toBeHashed, tokenExpirationTime) != 0))
{
LogError("Unable to build the input to the HMAC to prepare SAS token.\r\n");
STRING_delete(result);
result = NULL;
}
else
{
STRING_HANDLE base64Signature = NULL;
STRING_HANDLE urlEncodedSignature = NULL;
/*Codes_SRS_SASTOKEN_06_013: [If an error is returned from the HMAC256 function then NULL is returned from SASToken_Create.]*/
/*Codes_SRS_SASTOKEN_06_012: [An HMAC256 hash is calculated using the decodedKey, over toBeHashed.]*/
/*Codes_SRS_SASTOKEN_06_014: [If there are any errors from the following operations then NULL shall be returned.]*/
/*Codes_SRS_SASTOKEN_06_015: [The hash is base 64 encoded.]*/
/*Codes_SRS_SASTOKEN_06_028: [base64Signature shall be url encoded.]*/
/*Codes_SRS_SASTOKEN_06_016: [The string "SharedAccessSignature sr=" is the first part of the result of SASToken_Create.]*/
/*Codes_SRS_SASTOKEN_06_017: [The scope parameter is appended to result.]*/
/*Codes_SRS_SASTOKEN_06_018: [The string "&sig=" is appended to result.]*/
/*Codes_SRS_SASTOKEN_06_019: [The string urlEncodedSignature shall be appended to result.]*/
/*Codes_SRS_SASTOKEN_06_020: [The string "&se=" shall be appended to result.]*/
/*Codes_SRS_SASTOKEN_06_021: [tokenExpirationTime is appended to result.]*/
/*Codes_SRS_SASTOKEN_06_022: [The string "&skn=" is appended to result.]*/
/*Codes_SRS_SASTOKEN_06_023: [The argument keyName is appended to result.]*/
if ((HMACSHA256_ComputeHash(BUFFER_u_char(decodedKey), BUFFER_length(decodedKey), (const unsigned char*)STRING_c_str(toBeHashed), STRING_length(toBeHashed), hash) != HMACSHA256_OK) ||
((base64Signature = Base64_Encode(hash)) == NULL) ||
((urlEncodedSignature = URL_Encode(base64Signature)) == NULL) ||
(STRING_copy(result, "SharedAccessSignature sr=") != 0) ||
(STRING_concat_with_STRING(result, scope) != 0) ||
(STRING_concat(result, "&sig=") != 0) ||
(STRING_concat_with_STRING(result, urlEncodedSignature) != 0) ||
(STRING_concat(result, "&se=") != 0) ||
(STRING_concat(result, tokenExpirationTime) != 0) ||
(STRING_concat(result, "&skn=") != 0) ||
(STRING_concat_with_STRING(result, keyName) != 0))
{
LogError("Unable to build the SAS token.\r\n");
STRING_delete(result);
result = NULL;
}
else
{
/* everything OK */
}
STRING_delete(base64Signature);
STRING_delete(urlEncodedSignature);
}
}
STRING_delete(toBeHashed);
BUFFER_delete(hash);
}
BUFFER_delete(decodedKey);
}
}
return result;
}
void remote_monitoring_run(void)
{
initBme();
srand((unsigned int)time(NULL));
if (serializer_init(NULL) != SERIALIZER_OK)
{
LogInfo("Failed on serializer_init\r\n");
}
else
{
IOTHUB_CLIENT_CONFIG config;
IOTHUB_CLIENT_LL_HANDLE iotHubClientHandle;
config.deviceId = deviceId;
config.deviceKey = deviceKey;
config.iotHubName = hubName;
config.iotHubSuffix = hubSuffix;
config.protocol = HTTP_Protocol;
iotHubClientHandle = IoTHubClient_LL_Create(&config);
if (iotHubClientHandle == NULL)
{
LogInfo("Failed on IoTHubClient_CreateFromConnectionString\r\n");
}
else
{
#ifdef MBED_BUILD_TIMESTAMP
// For mbed add the certificate information
if (IoTHubClient_LL_SetOption(iotHubClientHandle, "TrustedCerts", certificates) != IOTHUB_CLIENT_OK)
{
LogInfo("failure to set option \"TrustedCerts\"\r\n");
}
#endif // MBED_BUILD_TIMESTAMP
Thermostat* thermostat = CREATE_MODEL_INSTANCE(Contoso, Thermostat);
if (thermostat == NULL)
{
LogInfo("Failed on CREATE_MODEL_INSTANCE\r\n");
}
else
{
STRING_HANDLE commandsMetadata;
if (IoTHubClient_LL_SetMessageCallback(iotHubClientHandle, IoTHubMessage, thermostat) != IOTHUB_CLIENT_OK)
{
LogInfo("unable to IoTHubClient_SetMessageCallback\r\n");
}
else
{
/* send the device info upon startup so that the cloud app knows
what commands are available and the fact that the device is up */
thermostat->ObjectType = "DeviceInfo";
thermostat->IsSimulatedDevice = false;
thermostat->Version = "1.0";
thermostat->DeviceProperties.HubEnabledState = true;
thermostat->DeviceProperties.DeviceID = (char*)deviceId;
commandsMetadata = STRING_new();
if (commandsMetadata == NULL)
{
LogInfo("Failed on creating string for commands metadata\r\n");
}
else
{
/* Serialize the commands metadata as a JSON string before sending */
if (SchemaSerializer_SerializeCommandMetadata(GET_MODEL_HANDLE(Contoso, Thermostat), commandsMetadata) != SCHEMA_SERIALIZER_OK)
{
LogInfo("Failed serializing commands metadata\r\n");
}
else
{
unsigned char* buffer;
size_t bufferSize;
thermostat->Commands = (char*)STRING_c_str(commandsMetadata);
/* Here is the actual send of the Device Info */
if (SERIALIZE(&buffer, &bufferSize, thermostat->ObjectType, thermostat->Version, thermostat->IsSimulatedDevice, thermostat->DeviceProperties, thermostat->Commands) != IOT_AGENT_OK)
{
LogInfo("Failed serializing\r\n");
}
else
{
sendMessage(iotHubClientHandle, buffer, bufferSize);
}
}
STRING_delete(commandsMetadata);
}
thermostat->DeviceId = (char*)deviceId;
int sendCycle = 10;
int currentCycle = 0;
while (1)
{
if(currentCycle >= sendCycle) {
float Temp;
float Humi;
getNextSample(&Temp, &Humi);
//thermostat->Temperature = 50 + (rand() % 10 + 2);
thermostat->Temperature = (int)round(Temp);
thermostat->ExternalTemperature = 55 + (rand() % 5 + 2);
//thermostat->Humidity = 50 + (rand() % 8 + 2);
thermostat->Humidity = (int)round(Humi);
currentCycle = 0;
unsigned char*buffer;
size_t bufferSize;
LogInfo("Sending sensor value Temperature = %d, Humidity = %d\r\n", thermostat->Temperature, thermostat->Humidity);
if (SERIALIZE(&buffer, &bufferSize, thermostat->DeviceId, thermostat->Temperature, thermostat->Humidity, thermostat->ExternalTemperature) != IOT_AGENT_OK)
{
LogInfo("Failed sending sensor value\r\n");
}
else
{
sendMessage(iotHubClientHandle, buffer, bufferSize);
}
}
IoTHubClient_LL_DoWork(iotHubClientHandle);
ThreadAPI_Sleep(100);
currentCycle++;
}
}
DESTROY_MODEL_INSTANCE(thermostat);
}
IoTHubClient_LL_Destroy(iotHubClientHandle);
}
serializer_deinit();
}
}
