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portable version of the cumulocity demo
Dependencies: C027_Support C12832 LM75B MMA7660 MbedSmartRest mbed-rtos mbed
Fork of MbedSmartRestMain by
DeviceBootstrap.cpp
- Committer:
- Cumulocity
- Date:
- 2014-07-28
- Revision:
- 49:ac0ba9d54ebc
- Parent:
- 46:f6976fd64387
- Child:
- 52:8f1370084268
File content as of revision 49:ac0ba9d54ebc:
#include "DeviceBootstrap.h" #include <stdlib.h> #include <stdio.h> #include <string.h> #include "rtos.h" #include "ComposedRecord.h" #include "CharValue.h" #include "IntegerValue.h" #include "ParsedRecord.h" DeviceBootstrap::DeviceBootstrap(SmartRest& client, MDMSerial& mdm, DeviceInfo& deviceInfo) : _client(client), _mdm(mdm), _deviceInfo(deviceInfo) { *_username = *_password = '\0'; } bool DeviceBootstrap::setUpCredentials() { if (((*_username == '\0') || (*_password == '\0')) && (!obtainFromStorage())) { if (!obtainFromPlatform()) return false; if (!writeToStorage()) puts("Warning: Could not write credentials to file!"); } printf("Credentials: %s : %s\n", _username, _password); if (_client.setAuthorization(_username, _password) != SMARTREST_SUCCESS) return false; return true; } const char * DeviceBootstrap::username() { return _username; } const char * DeviceBootstrap::password() { return _password; } bool DeviceBootstrap::obtainFromStorage() { char buf[DEVICE_BOOTSTRAP_CREDENTIALS_LENGTH*2+2], *ptr; int res = _mdm.readFile(CREDENTIALS_FILE, buf, sizeof(buf)); if (res < 0) return false; buf[res] = '\0'; if ((ptr = strchr(buf, '\n')) == NULL) return false; *ptr = '\0'; ptr = buf; strcpy(_username, ptr); ptr += strlen(ptr)+1; strcpy(_password, ptr); return true; } bool DeviceBootstrap::obtainFromPlatform() { uint8_t ret; const char *id; id = _deviceInfo.imei(); printf("Starting device bootstrap with '%s'\n", id); ComposedRecord record; ParsedRecord recvdRecord; IntegerValue msgId(61); CharValue identifier(id); if ((!record.add(msgId)) || (!record.add(identifier))) return false; // set authorization for bootstrap if (_client.setAuthorization(DEVICE_BOOTSTRAP_USERNAME, DEVICE_BOOTSTRAP_PASSWORD) != SMARTREST_SUCCESS) return false; while (true) { if (_client.send(record, "") != SMARTREST_SUCCESS) { puts("Connection unsuccessful. Retrying."); _client.stop(); Thread::wait(2000); continue; } if (_client.receive(recvdRecord) != SMARTREST_SUCCESS) { puts("Receiving failure."); _client.stop(); Thread::wait(2000); continue; } _client.stop(); for (size_t q = 0; q < recvdRecord.values(); q++) puts(recvdRecord.rawValue(q)); if ((recvdRecord.values() < 1) || (recvdRecord.value(0).integerValue() == 50)) { puts("No credentials available yet. Retrying."); Thread::wait(2000); continue; } if ((recvdRecord.value(0).integerValue() != 70) || (recvdRecord.values() != 6)) { puts("Bad credentials received."); return false; } setCredentials(recvdRecord.value(3).characterValue(), recvdRecord.value(4).characterValue(), recvdRecord.value(5).characterValue()); return true; } return false; } bool DeviceBootstrap::writeToStorage() { char buf[DEVICE_BOOTSTRAP_CREDENTIALS_LENGTH*2+2], *ptr; size_t len; ptr = buf; len = strlen(_username); strcpy(ptr, _username); ptr += len; *ptr++ = '\n'; len++; len += strlen(_password); strcpy(ptr, _password); _mdm.delFile(CREDENTIALS_FILE); _mdm.writeFile(CREDENTIALS_FILE, buf, len); return true; } void DeviceBootstrap::setCredentials(const char *tenant, const char *username, const char *password) { *_username = '\0'; if (tenant != NULL) { strncpy(_username, tenant, DEVICE_BOOTSTRAP_CREDENTIALS_LENGTH); _username[DEVICE_BOOTSTRAP_CREDENTIALS_LENGTH-1] = '\0'; if (strlen(_username)+1 < DEVICE_BOOTSTRAP_CREDENTIALS_LENGTH) strcat(_username, "/"); } strncat(_username, username, DEVICE_BOOTSTRAP_CREDENTIALS_LENGTH-strlen(_username)); _username[DEVICE_BOOTSTRAP_CREDENTIALS_LENGTH-1] = '\0'; strncpy(_password, password, DEVICE_BOOTSTRAP_CREDENTIALS_LENGTH); _password[DEVICE_BOOTSTRAP_CREDENTIALS_LENGTH-1] = '\0'; }