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-rw-r--r--src/IOFileClass/FileManIOFile.cpp147
1 files changed, 147 insertions, 0 deletions
diff --git a/src/IOFileClass/FileManIOFile.cpp b/src/IOFileClass/FileManIOFile.cpp
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+/**
+ * @file FileManIOFile.cpp
+ * @brief FileManIOFile class definitions
+ * @author manzerbredes
+ * @date 9 Mars 2015
+ *
+ * Contain all definitions of FileManIOFile class.
+ *
+ */
+
+
+#include "FileManIOFile.hpp"
+
+//Constructor with filename
+FileManIOFile::FileManIOFile(std::string filename){
+ this->filename=filename;
+ this->readable=false;
+ this->data="";
+ this->key;
+}
+
+//Destructor
+FileManIOFile::~FileManIOFile(){
+}
+
+
+
+//Read the filename with a key
+void FileManIOFile::read(std::string key){
+
+ //create file object
+ std::ifstream file;
+
+ //Clear data
+ this->data.clear();
+
+ //Open file
+ file.open (this->filename, std::ios::in | std::ios::binary);
+
+ //Get MD5 of decrypted data
+ byte fileMD5[16];
+ file.read((char*) fileMD5, sizeof(fileMD5));
+
+ //Read all data
+ char car;
+ file.read(&car, sizeof(car));
+
+ while(file){
+ this->data+=car,
+ file.read(&car, sizeof(car));
+
+ }
+
+ //Decrypt data
+ this->data=this->aes.decrypt(key, this->data);
+
+ //Get current MD5 of decrypted data
+ byte currentMD5[16];
+ this->hash.getMD5_128(this->data, currentMD5, sizeof(currentMD5));
+
+ //Compare the 2 MD5 to find if file is fully decrypted
+ if(this->hash.compareDigest(fileMD5, currentMD5, sizeof(currentMD5))){
+ //Set readable
+ this->readable=true;
+ //Save the key
+ this->hash.getSHA_256(key, this->key, 32);
+ }
+ else{
+ this->readable=false;
+ }
+
+ //Close file
+ file.close();
+
+
+}
+
+
+
+//Write file with key
+void FileManIOFile::write(std::string key,std::string data){
+
+ std::string dataEncrypted;
+
+ dataEncrypted=this->aes.encrypt(key, data);
+
+ this->writeRoutine(data, dataEncrypted);
+
+
+}
+
+//Write file without key
+void FileManIOFile::write(std::string data){
+ if(not(this->readable)){
+ std::cout << "Can't write data without key (read it before) !" << std::endl;
+ std::exit(EXIT_FAILURE);
+ }
+
+ std::string dataEncrypted;
+
+ dataEncrypted=this->aes.encrypt(this->key, data);
+ this->writeRoutine(data, dataEncrypted);
+
+
+}
+
+
+
+//Get readable attribute
+bool FileManIOFile::isReadable(){
+ return this->readable;
+}
+
+
+
+//Write file
+void FileManIOFile::writeRoutine(std::string data, std::string dataEncrypted){
+
+ //Save MD5 of decrypted data
+ byte digest[16];
+ this->hash.getMD5_128(data, digest, sizeof(digest));
+
+ //Create file instance
+ std::ofstream file;
+
+ //Open it
+ file.open(this->filename, std::ios::out | std::ios::binary);
+
+ //Write MD5 on 16 first bytes
+ file.write((char *) digest,sizeof(digest));
+
+ //Write data
+ file.write(dataEncrypted.c_str(), dataEncrypted.size());
+
+ //Close file
+ file.close();
+
+ //Save data to attribute
+ this->data=data;
+}
+
+
+
+//Get data
+std::string FileManIOFile::getData(){
+ return this->data;
+}