From 64ef51a8ce6bc148ba493e350e2cac4cba470201 Mon Sep 17 00:00:00 2001 From: Joursoir Date: Sat, 31 Oct 2020 17:45:29 +0000 Subject: some features: remake README.md for new code architecture; add help command; add man page; --- implementation.c | 256 ------------------------------------------------------- 1 file changed, 256 deletions(-) delete mode 100644 implementation.c (limited to 'implementation.c') diff --git a/implementation.c b/implementation.c deleted file mode 100644 index 3ba2be7..0000000 --- a/implementation.c +++ /dev/null @@ -1,256 +0,0 @@ -#include -#include -#include -#include -#include -#include -#include - -#include "handerror.h" -#include "easydir.h" -#include "implementation.h" - -/* define in implementation.h */ -// GPG_PUBLICKEY_MAXLENGTH 1025 - -#define BASH_EXEC_COPY "lpass_copy.sh" - -// == global var == -extern char *gPath_rootdir; // /home/[username]/.lockpassword/ -extern char *gPath_subdir; // example: programming/github.com -extern char *gPath_pass; // example: programming/github.com/joursoir.gpg - -static void copyText(char *password) -{ - size_t size = (strlen(password) + strlen(BASH_EXEC_COPY) + 1) * sizeof(char); - char *command = malloc(size); - - snprintf(command, size, "%s %s", BASH_EXEC_COPY, password); - system(command); - - free(command); -} - -void checkForbiddenPaths(char *path) // check two dot in path -{ - int firstdot = 0; - for(int i=0; i < strlen(path); i++) - { - if(path[i] == '.') - firstdot ? printError("Error: please, don't use forbidden paths\n") : firstdot++; - else firstdot = 0; - } -} - -char *getGPGKey(char *dest, size_t size) -{ - FILE *fileGPG = fopen(".gpg-key", "r"); - if(fileGPG == NULL) { - if(errno == ENOENT) printError("error: No GPG key exists\n"); - callError(121); - } - - if(!fgets(dest, size, fileGPG)) { - callError(122); - } - fclose(fileGPG); - - return dest; -} - -char* getPassword(char *path_pass, char *password, size_t size, int flag_copy) -{ - int size_gpgkey = sizeof(char) * GPG_PUBLICKEY_MAXLENGTH; - char *secret_gpgkey = (char *) malloc(size_gpgkey); - getGPGKey(secret_gpgkey, size_gpgkey); - - char *arguments[] = {"gpg", "-d", "--quiet", "-r", secret_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(secret_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); -} - -void insertPass(char *add_path, char *password, int flag_copy) -{ - /* gPath_rootdir = /home/[username]/.lock-password/ - add_path = banks/france/[number] - gPath_pass = banks/france/[number].gpg - gPath_subdir = banks/france */ - - int size_gpgkey = sizeof(char) * GPG_PUBLICKEY_MAXLENGTH; - char *secret_gpgkey = (char *) malloc(size_gpgkey); - getGPGKey(secret_gpgkey, size_gpgkey); - - char *arguments1[] = {"mkdir", "-p", gPath_subdir, NULL}; - easyFork("mkdir", arguments1); - - // create file, copy password there - FILE *filePass; - filePass = fopen(add_path, "w"); - if(filePass == NULL) { - callError(108); - } - fputs(password, filePass); - fclose(filePass); - - if(flag_copy) copyText(password); - - // encryption - char *arguments2[] = {"gpg", "--quiet", "--yes", "-r", secret_gpgkey, "-e", add_path, NULL}; - easyFork("gpg", arguments2); - - remove(add_path); - free(secret_gpgkey); -} - -char *typePass(char *text, char *dest, int minlen, int maxlen) -{ - printf("%s", text); - if(fgets(dest, sizeof(char)*maxlen, stdin) == NULL) { - nonvisibleEnter(0); - printError("lpass: Unexpected end of file\n"); - } - - int len = strlen(dest); - if(len < minlen || len > maxlen) { - nonvisibleEnter(0); - printError("lpass: incorrect password\n"); - } - - if(dest[len-1] == '\n') { - dest[len-1] = '\0'; - } - - #if defined(DEBUG) - printf("%s", dest); - #endif - - printf("\n"); // for new line - return dest; -} - -int userEnterPassword(int minlen, int maxlen, char *path_insert, int flag_echo, int flag_copy) -{ - char *pass_one = (char *) malloc(sizeof(char) * maxlen); - int rvalue = 0; - if(!flag_echo) { - char *pass_two = (char *) malloc(sizeof(char) * maxlen); - - nonvisibleEnter(1); // change terminal work - typePass("Type your password: ", pass_one, minlen, maxlen); - typePass("Type your password again: ", pass_two, minlen, maxlen); - nonvisibleEnter(0); - - if(strcmp(pass_one, pass_two) == 0) { - insertPass(path_insert, pass_one, flag_copy); - rvalue = 1; - } - free(pass_two); - } - else { - typePass("Type your password: ", pass_one, minlen, maxlen); - insertPass(path_insert, pass_one, flag_copy); - rvalue = 1; - } - - free(pass_one); - return rvalue; -} - -char *generatePassword(char *dest, int amount, int max_len) -{ - char allowed_symbols[] = { - 'A','E','I','J','O','U','B','C','D','F','G','H', - 'K','L','M','N','P','Q','R','S','T','V','W','X', - 'Y','Z','a','e','i','j','o','u','b','c','d','f', - 'g','h','k','l','m','n','p','q','r','s','t','v', - 'w','x','y','z','1','2','3','4','5','6','7','8', - '9','0','!','#','$',';','%','^',':','&','?','*', - '(',')','-','_','+','=','<', '>' - }; - int max = sizeof(allowed_symbols); - srand(time(NULL)); - - char password[max_len]; - for(int i=0; i < amount; i++) - { - char c = allowed_symbols[rand() % max]; - - password[i] = c; - password[i+1] = '\0'; - } - - strcpy(dest, password); - return dest; -} - -unsigned long hash(char *str) -{ - unsigned long hash = 5381; - char c; - - while( (c = *str++) ) - hash = ((hash << 5) + hash) + c; /* hash * 33 + c */ - - return hash; -} - -static void clearStdinBuff() -{ - char garbage; - - while( (garbage = fgetc(stdin)) != '\n' && garbage != EOF ) - ; -} - - -int getOverwriteAnswer(char *path) -{ - int buffSize = (strlen("Password for '' exists. Overwrite? (Y/N)") + strlen(path) + 1)* sizeof(char); - char *text = malloc(buffSize); - snprintf(text, buffSize, "Password for '%s' exists. Overwrite? (Y/N)", path); - printf("%s ", text); - - int answer; - while((answer = fgetc(stdin))) - { - clearStdinBuff(); - switch(answer) - { - case 'Y': - case 'y': { free(text); return 1; } - case 'N': - case 'n': { free(text); return 0; } - case EOF: printError("Error: Unexpected end of file\n"); - default: { printf("%s ", text); break; } - } - } - - free(text); - return -1; -} -- cgit v1.2.3-18-g5258