Apache_PHP_extension/systemMain.cpp

#include <phpcpp.h>
#include <string.h>
#include <string>
#include <unistd.h>
#include <errno.h>

//#include <fcntl.h>
//#include <sys/types.h>
//#include <sys/stat.h>
#include <stdio.h>

//#include "crypto.h"
#include "ProtobufLAInitiator.h"
using namespace std;



// #include <unistd.h> 
// based off the example functionreturnvalue.cpp in PHP-CPP 

/**
 *  Namespace to use
 */
//using namespace std; 

#define DECRYPTOR_PORT 3825 
int local_attestation_successful=0;
int __ImageBase=0;

//extern "C" {

class Mitigator : public Php::Base
{
	private: 
		static std::string mitigator_header; 
//		int x;
	public:
	// adding to extension throws an error if this method is not public

	static void local_attestation_initiator_wrapper() 
	{
		setbuf(stdout,NULL); uint32_t count;
		uint32_t return_sgx; 
		unsigned char base64_encoded_mitigator_header[229] ; //216=(ceil(160/3) * 4) + 1 (for null character) + 12 for "X-Mitigator:"
		memcpy(base64_encoded_mitigator_header, "X-Mitigator:", 12); 
		return_sgx = local_attestation_initiator(DECRYPTOR_PORT, base64_encoded_mitigator_header+12);
		if(return_sgx != 0)
		{
			if(return_sgx== 0xFFFFFFFF)
			{
				perror("\nCould not set up the socket: had the following error: "); fflush(stderr);
			}
			else
			{
				printf("\nHad the following error in SGX local attestation: 0x%x", return_sgx);
				fflush(stdout);
			}
		}
		else {
		printf("\nSuccessful LA with port %d.\n", DECRYPTOR_PORT);
		fflush(stdout);
		local_attestation_successful=1; 
		char base64_encoding[229];
		for(count=0;count<229;count++)
			base64_encoding[count]=base64_encoded_mitigator_header[count];
		printf("String:%s\nThat string was of length 0x%x\n", base64_encoding, strlen(base64_encoding)); fflush(stdout);
		mitigator_header=std::string(base64_encoding,228); 
		}
	}

//         std::cout << "MyCustomClass::MyCustomClass()" << std::endl;

		Mitigator() = default; // {x=3;} //{ mitigator_header=std::string("Miti: Miti");  }
		virtual ~Mitigator() = default;
		// call this function in PHP async or call add_header here. 
		Php::Value get_mitigator_header() 
		{
			return mitigator_header; //Php::Value(mitigator_header, 176);
		}
		// call this func onRequest 
/*		Php::Value decrypt_php_wrapper()
		{
			return "miti"; 
		}
*/
};
 
std::string Mitigator::mitigator_header=std::string("Miti: Miti");

extern "C" {	

    // export the "get_module" function that will be called by the Zend engine
    PHPCPP_EXPORT void *get_module()
    {
        // create extension
        static Php::Extension extension("decryptor_la_setup_and_decryption","1.0");
        
        Php::Class<Mitigator> mitigator("Mitigator");
	mitigator.method<&Mitigator::get_mitigator_header>("get_mitigator_header");
//        mitigator.property("mitigator_header", &Mitigator::get_mitigator_header);


        extension.onStartup(&Mitigator::local_attestation_initiator_wrapper);
        // return the extension module
	extension.add(mitigator); 
        return extension.module();
    }
}