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Added HPSH init, deinit and serve. Fixed socket communication issues

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This commit is contained in:
Dulana Peiris
2023-10-23 23:11:05 +05:30
parent 172195f1f6
commit a133fb48eb
6 changed files with 115 additions and 86 deletions
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89
src/usr/usr.cpp
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@@ -17,6 +17,7 @@
#include "user_input.hpp"
#include "read_req.hpp"
#include "input_nonce_map.hpp"
#include "../hpsh/hpsh.hpp"
namespace usr
{
@@ -278,91 +279,9 @@ namespace usr
if (parser.extract_shell_input(id, content) != -1)
{
int p1[2] ; // 0,1 are hpcore to hphs
int p2[2] ; // 2,3 are hpsh to hpcore
if (socketpair(AF_UNIX, SOCK_SEQPACKET, 0, p1))
perror("could not create unix domain socket pair");
if (socketpair(AF_UNIX, SOCK_SEQPACKET, 0, p2))
perror("could not create unix domain socket pair");
pid_t pid = -1;
pid = fork();
if (pid == -1)
{
perror("Error occurred when forking");
return -1;
}
if (pid != 0)
{
// parent process
close(p1[0]);
close(p2[1]);
LOG_INFO << "parent: Received Shell Input.\n";
LOG_INFO << "parent: User PubKey:" << user.pubkey << "\n";
LOG_INFO << "parent: ID:" << id << "\n";
LOG_INFO << "parent: Content:" << content << "\n";
LOG_INFO << "parent: writing content to pipe\n";
ssize_t bytes_written = write(p1[1], content.c_str(), content.size());
if (bytes_written == -1)
{
perror("write to pipe failed");
// handle the error appropriately
}
char buffer[1024] = {0};
if(read(p2[0], &buffer, sizeof(buffer))==-1){
perror("Error in reading to the fd");
}
std::cout <<"bufferread"<< buffer << std::endl;
LOG_INFO << "parent: closing pipe\n";
close(p1[1]);
close(p2[0]);
LOG_INFO << "parent: closed\n";
}
else
{
// child process
close(p1[1]);
close(p2[0]);
char read_end[16];
snprintf(read_end, sizeof(read_end), "%d", p1[0]);
char write_end[16];
snprintf(write_end, sizeof(write_end), "%d", p2[1]);
std::string receivedContent;
LOG_INFO << "child: reading from pipe:\n";
const int BUFFER_SIZE = 1024;
char buffer[BUFFER_SIZE];
ssize_t bytes_read = read(p1[0], buffer, BUFFER_SIZE);
if (bytes_read == -1)
{
perror("read from pipe failed");
// handle the error appropriately
}
else
{
buffer[bytes_read] = '\0'; // Null-terminate the string
receivedContent = buffer;
LOG_INFO << "child: Content:" << receivedContent << "\n";
}
receivedContent = "\"" + receivedContent + "\"";
char *passed_command = new char[receivedContent.length() + 1];
std::strcpy(passed_command, receivedContent.c_str());
char *args[] = {const_cast<char *>(conf::ctx.hpsh_exe_path.c_str()), passed_command,read_end, write_end, NULL};
if (execv(conf::ctx.hpsh_exe_path.c_str(), args) == -1)
{
perror("Error when executing HPSH");
}
close(p1[0]);
close(p2[1]);
}
LOG_INFO << "shell input received:" << content;
std::string response = hpsh::serve(content.c_str());
LOG_INFO << "response: " << response;
return 0;
}