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#include <stdio.h>
#include <stdlib.h>
#include <libgen.h>
#include <unistd.h>
#include <termios.h>
#include <string.h>
#include <time.h>
#include <errno.h>
#include <sys/stat.h>
#include "handerror.h"
#include "easydir.h"
#include "implementation.h"
/* define in implementation.h */
// GPG_PUBLICKEY_MAXLENGTH NNNN
// == global var ==
extern char *gPath_subdir; // example: programming/github.com
extern char *gPath_pass; // example: programming/github.com/joursoir.gpg
static void copyText(char *password)
{
char *simple_path = malloc(sizeof(char) * (5 + 1));
strcpy(simple_path, ".pass");
if(getenv("DISPLAY") != NULL)
{
FILE *f_pass;
f_pass = fopen(simple_path, "w");
if(f_pass == NULL) {
callError(130);
}
fputs(password, f_pass);
fclose(f_pass);
char *xclip[] = {"xclip", "-selection", "clipboard", "-i", simple_path, NULL};
easyFork("xclip", xclip);
remove(simple_path);
free(simple_path);
}
else if(getenv("WAYLAND_DISPLAY") != NULL)
{
char *wl_copy[] = {"wl-copy", password, NULL};
easyFork("wl-copy", wl_copy);
}
else printError("Error: No X11 or Wayland");
#if defined(DEBUG)
printf("Password copied to clipboard\n");
#endif
}
/* check two dot in path */
int checkForbiddenPaths(char *path)
{
int i, length;
int firstdot = 0;
for(i = 0, length = strlen(path); i < length; i++)
{
if(path[i] == '.') {
if(firstdot)
return 1;
firstdot++;
}
else firstdot = 0;
}
return 0;
}
char *getGPGKey()
{
int size_gpgkey = sizeof(char) * GPG_PUBLICKEY_MAXLENGTH;
char *pub_gpgkey = malloc(size_gpgkey + sizeof(char));
FILE *fileGPG = fopen(".gpg-key", "r");
if(fileGPG == NULL) {
if(errno == ENOENT)
printError("error: No GPG key exists. Use \"lpass init\".");
callError(121);
}
if(!fgets(pub_gpgkey, size_gpgkey, fileGPG)) {
callError(122);
}
fclose(fileGPG);
return pub_gpgkey;
}
char* getPassword(char *path_pass, char *password, size_t size, int flag_copy)
{
char *public_gpgkey = getGPGKey();
char *arguments[] = {"gpg", "-d", "--quiet", "-r", public_gpgkey, "-o", path_pass, gPath_pass, NULL};
easyFork("gpg", arguments);
FILE *filePass = fopen(path_pass, "r");
if(filePass == NULL) callError(127);
if(!fgets(password, size, filePass)) {
callError(111);
}
fclose(filePass);
if(flag_copy) copyText(password);
remove(path_pass);
free(public_gpgkey);
return password;
}
void nonvisibleEnter(int status)
{
struct termios term_settings;
tcgetattr(0, &term_settings); // get current settings
if(status == 1)
term_settings.c_lflag &= ~ECHO; // flag reset
else
term_settings.c_lflag |= ECHO;
tcsetattr(0, TCSANOW, &term_settings);
}
static void mkdir_recursive(const char *path)
{
char *subpath, *fullpath;
fullpath = strdup(path);
subpath = dirname(fullpath);
if(subpath[0] != '.')
mkdir_recursive(subpath);
mkdir(path, S_IRWXU);
free(fullpath);
}
int insertPass(char *path, char *password, int flag_copy)
{
char *public_gpgkey = getGPGKey();
// create directories
char *tmp, *dirs_path;
tmp = strdup(path);
dirs_path = dirname(tmp);
if(dirs_path[0] != '.')
mkdir_recursive(dirs_path);
free(tmp);
// create file, copy password there
FILE *file_pass;
file_pass = fopen(path, "w");
if(file_pass == NULL) {
free(public_gpgkey);
return 1;
}
fputs(password, file_pass);
fclose(file_pass);
if(flag_copy)
copyText(password);
// encryption
char *encrypt_arg[] = {"gpg", "--quiet", "--yes", "-r", public_gpgkey, "-e", path, NULL};
easyFork("gpg", encrypt_arg);
remove(path);
free(public_gpgkey);
return 0;
}
char *getInput(int minlen, int maxlen)
{
size_t size = sizeof(char) * maxlen;
char *pass = malloc(size + sizeof(char)); // +1 for '\0'
int len;
if(fgets(pass, size, stdin) == NULL) {
free(pass);
return NULL;
}
len = strlen(pass);
if(len < minlen) {
free(pass);
return NULL;
}
if(pass[len-1] == '\n')
pass[len-1] = '\0';
return pass;
}
char *generatePassword(char *dest, int amount)
{
int i, min = 33, max = 126;
char password[amount];
srand(time(NULL));
for(i = 0; i < amount; i++)
password[i] = min + rand() % (max-min);
strcpy(dest, password);
return dest;
}
static void clearStdinBuff()
{
char garbage;
while( (garbage = fgetc(stdin)) != '\n' && garbage != EOF )
;
}
int getOverwriteAnswer(char *path)
{
int answer;
printf("Password for \"%s\" exists. Overwrite? (Y/N)\n", path);
while((answer = fgetc(stdin)))
{
clearStdinBuff();
switch(answer)
{
case 'Y':
case 'y': return OW_YES;
case 'N':
case 'n': return OW_NO;
case EOF: printError("Error: Unexpected end of file\n");
default: { printf("Overwrite? (Y/N) "); break; }
}
}
return 2;
}
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