PersonalVotingMachine/basic-setup/main/impl/controllers/ZipController.cpp
2020-12-22 14:30:09 +02:00

90 lines
2.6 KiB
C++

/**
* @file ZipController.cpp
* @brief ZipController implementation file
* */
#include "miniz.h"
#include "controller.h"
ZipController::ZipController(BaseModel *model){
this->vw = new IndexView();
this->model = static_cast<ZipModel *>(model);
}
void ZipController::index(){
try{
// create a container with .ballot and .xml files
mz_bool status;
mz_zip_archive bdoc;
mz_zip_zero_struct(&bdoc);
size_t len;
status = mz_zip_writer_init_heap(&bdoc, 0,10240); //! * init zip heap
if(!status){
throw mz_zip_get_error_string(bdoc.m_last_error);
}
// Add mimefile
char *mimetype = (char *) "application/vnd.etsi.asic-e+zip"; //! * add mimetype file to zip
status = mz_zip_writer_add_mem(&bdoc, "mimetype", (void *) mimetype, strlen(mimetype), MZ_NO_COMPRESSION);
if (!status){
throw mz_zip_get_error_string(bdoc.m_last_error);
}
// Add manifest.xml
char* manifestXML = (char *) malloc(512);
memset(manifestXML,0,512);
snprintf(manifestXML, 512, manifest, "EP2065.1.ballot");
status = mz_zip_writer_add_mem(&bdoc, "META-INF/manifest.xml", (void *)manifestXML, strlen(manifestXML), MZ_NO_COMPRESSION); //! * add manifest.xml file to zip
if (!status){
throw mz_zip_get_error_string(bdoc.m_last_error);
}
// Add ballot file
status = mz_zip_writer_add_mem(&bdoc, this->model->ballotFileName, (void *) this->model->ballot, this->model->ballotLength, MZ_NO_COMPRESSION); //! * add ballot file to zip
if (!status){
throw mz_zip_get_error_string(bdoc.m_last_error);
}
// Add signature0.xml
status = mz_zip_writer_add_mem(&bdoc, "META-INF/signatures0.xml", (void *) this->model->Signature, strlen(this->model->Signature), MZ_NO_COMPRESSION); //! * add signature file to zip
if (!status){
throw mz_zip_get_error_string(bdoc.m_last_error);
}
// Close zip file
void *zipBuf;
status = mz_zip_writer_finalize_heap_archive(&bdoc, &zipBuf, &len);
if (!status){
throw mz_zip_get_error_string(bdoc.m_last_error);
}
status = mz_zip_writer_end(&bdoc);
if (!status){
throw "zip end failed";
}
// hash container
this->model->voteBase64 = (unsigned char *)malloc(2*len);
if(this->model->voteBase64 == NULL){
throw "Insufficient memory";
}
memset(this->model->voteBase64, 0, 2*len);
int error = mbedtls_base64_encode(this->model->voteBase64, 2*len - 1, &len, (unsigned char *) zipBuf, len); //! * base64 encode zip file
if(error) {
throw "Base64 encode error";
}
this->vw->render((void*) "Signature complete");
mz_free(zipBuf);
free(this->model->Signature);
}
catch (const char* msg){
this->vw->render((void *)msg);
throw msg;
}
}