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Database.cpp
267 lines (238 loc) · 8.31 KB
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Database.cpp
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#include "Database.h"
#include <QDebug>
/*!
*
* @param databaseName
*/
Database::Database(QString databaseName){
sqlite3_open(databaseName.toStdString().c_str(), &connection);
}
Database::~Database(){
sqlite3_close(connection);
}
/*!
*
* @param username
* @param password
* @return
*/
Customer* Database::loginAsCustomer(QString username, QString password){
unsigned* digest = encryptPassword(password);
Customer* customer;
if(validateCustomerLogin(username, digest)){
ostringstream sqlCmmd;
sqlCmmd << "SELECT cl_customer FROM ics_customer_logins WHERE cl_username = '"
<< username.toStdString() << "'";
sqlite3_stmt* stmt;
sqlite3_prepare_v2(connection, sqlCmmd.str().c_str(), -1, &stmt, NULL);
sqlite3_step(stmt);
customer = new Customer(connection, QString(static_cast<const char*>(sqlite3_column_blob(stmt, 0))));
}
else{
ostringstream ex;
ex << "Invalid login by " << username.toStdString();
throw new InvalidLoginException(ex.str().c_str());
}
return customer;
}
/*!
*
* @param username
* @param password
* @return
*/
QMap<QString, Customer>* Database::loginAsAdmin(QString username, QString password){
unsigned* digest = encryptPassword(password);
QMap<QString, Customer>* customerMap = new QMap<QString, Customer>();
if(validateAdminLogin(username, digest)){
sqlite3_stmt* stmt;
int rc = sqlite3_prepare_v2(connection, "SELECT c_name FROM ics_customers", -1, &stmt, NULL);
rc = sqlite3_step(stmt);
while(rc != SQLITE_DONE){
QString name = QString(static_cast<const char*>(sqlite3_column_blob(stmt, 0)));
customerMap->insert(name, Customer(connection, name));
rc = sqlite3_step(stmt);
}
}
else{
ostringstream ex;
ex << "Invalid login by " << username.toStdString();
throw new InvalidLoginException(ex.str().c_str());
}
return customerMap;
}
/*!
*
* @param name
* @param streetAddress
* @param city
* @param state
* @param zip
* @param interest
* @param isKey
*/
void Database::AddCustomer(QString name,
QString streetAddress, QString city, QString state, QString zip,
Interest interest,
bool isKey){
if(checkKeyCollision("ics_customers", "c_name", name.toStdString())){
throw new KeyCollisionException("Customer already has an account.");
}
ostringstream customer;
customer << "INSERT INTO ics_customers (c_name, c_interest, c_is_key) VALUES ('"
<< name.toStdString() << "', "
<< interest << ", "
<< (int)isKey << ")";
ostringstream address;
address << "INSERT INTO ics_addresses (a_customer, a_street_address, a_city, a_state, a_zip) VALUES ('"
<< name.toStdString() << "', '"
<< streetAddress.toStdString() << "', '"
<< city.toStdString() << "', '"
<< state .toStdString() << "', '"
<< zip.toStdString() << "')";
char* errMsg;
sqlite3_exec(connection, customer.str().c_str(), NULL, 0, &errMsg);
if(errMsg != NULL){
cerr << errMsg;
}
else{
sqlite3_exec(connection, address.str().c_str(), NULL, 0, &errMsg);
if(errMsg!= NULL){
cerr << errMsg;
}
}
}
/*!
*
* @param password
*/
unsigned* Database::encryptPassword(QString password) const{
SHA1 encryption;
unsigned* digest = new unsigned[5];
bool successfulEncryption;
do{
encryption << password.toStdString().c_str();
successfulEncryption = encryption.Result(digest);
if(!successfulEncryption){
encryption.Reset();
delete[] digest;
digest = new unsigned[5];
}
}while(!successfulEncryption);
return digest;
}
/*!
*
* @param username
* @param digest
* @return
*/
bool Database::validateCustomerLogin(QString username, unsigned* digest) const{
ostringstream sqlCmmd;
sqlCmmd << "SELECT count(*) FROM ics_customer_logins WHERE "
<< "cl_username = '" << username.toStdString() << "' AND "
<< "cl_password_part_one = " << digest[0] << " AND "
<< "cl_password_part_two = " << digest[1] << " AND "
<< "cl_password_part_three = " << digest[2] << " AND "
<< "cl_password_part_four = " << digest[3] << " AND "
<< "cl_password_part_five = " << digest[4];
sqlite3_stmt* stmt;
int rc = sqlite3_prepare_v2(connection, sqlCmmd.str().c_str(), -1, &stmt, NULL);
rc = sqlite3_step(stmt);
return rc == SQLITE_ROW && sqlite3_column_int(stmt, 0) == 1;
}
/*!
*
* @param username
* @param digest
* @return
*/
bool Database::validateAdminLogin(QString username, unsigned* digest) const{
ostringstream sqlCmmd;
sqlCmmd << "SELECT count(*) FROM ics_admin_logins WHERE "
<< "al_admin = '" << username.toStdString() << "' AND "
<< "al_password_part_one = " << digest[0] << " AND "
<< "al_password_part_two = " << digest[1] << " AND "
<< "al_password_part_three = " << digest[2] << " AND "
<< "al_password_part_four = " << digest[3] << " AND "
<< "al_password_part_five = " << digest[4];
sqlite3_stmt* stmt;
int rc = sqlite3_prepare_v2(connection, sqlCmmd.str().c_str(), -1, &stmt, NULL);
sqlite3_step(stmt);
return sqlite3_column_int(stmt, 0) == 1;
}
/*!
*
* @param table
* @param field
* @param value
* @return
*/
bool Database::checkKeyCollision(string table, string field, string value) const{
ostringstream sqlCmmd;
sqlCmmd << "SELECT count(*) FROM "
<< table
<< " WHERE "
<< field
<< " = "
<< value;
sqlite3_stmt* stmt;
sqlite3_prepare_v2(connection, sqlCmmd.str().c_str(), -1, &stmt, NULL);
sqlite3_step(stmt);
return sqlite3_column_int(stmt, 0) == 1;
}
/*!
*
* @param username
* @param password
* @param customer
*/
void Database::registerCustomer(QString username, QString password, QString customer){
unsigned* digest = encryptPassword(password);
if(checkKeyCollision("ics_customer_logins", "cl_username", username.toStdString()) ||
checkKeyCollision("ics_customer_logins", "cl_customer", customer.toStdString())){
throw new KeyCollisionException("Username already exists or customer already has an account.");
}
ostringstream sqlCmmd;
sqlCmmd << "INSERT INTO ics_customer_logins (cl_customer, cl_password_part_one, "
<< "cl_password_part_two, cl_password_part_three, cl_password_part_four, "
<< "cl_password_part_five, cl_username) VALUES ('"
<< customer.toStdString() << "', "
<< digest[0] << ", "
<< digest[1] << ", "
<< digest[2] << ", "
<< digest[3] << ", "
<< digest[4] << ", '"
<< username.toStdString() << "')";
char* errMsg;
sqlite3_exec(connection, sqlCmmd.str().c_str(), NULL, 0, &errMsg);
if(errMsg != NULL){
cerr << errMsg << endl;
}
}
/*!
*
* @param username
* @param password
*/
void Database::registerAdmin(QString username, QString password){
unsigned* digest = encryptPassword(password);
if(checkKeyCollision("ics_admin_logins", "al_admin", username.toStdString())){
throw new KeyCollisionException("Admin username already exists.");
}
ostringstream sqlCmmd;
sqlCmmd << "INSERT INTO ics_admin_logins (al_admin, al_password_part_one, "
<< "al_password_part_two, al_password_part_three, al_password_part_four, "
<< "al_password_part_five) VALUES ('"
<< username.toStdString() << "', "
<< digest[0] << ", "
<< digest[1] << ", "
<< digest[2] << ", "
<< digest[3] << ", "
<< digest[4] << ")";
char* errMsg;
sqlite3_exec(connection, sqlCmmd.str().c_str(), NULL, 0, &errMsg);
if(errMsg != NULL){
cerr << errMsg << endl;
}
}