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tcoin/pcoin.cpp

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#include <iostream>
#include <fstream>
#include <cstdlib>
#include <cstdio>
#include <sstream>
#include <cstring>
#include <memory>
#include <stdexcept>
#include <array>
#include <vector>
#include <string>
#include <algorithm>
#include <iterator>
#include <sys/stat.h>
#include <ctime>
#include <unistd.h>
#include "popen2.h"
//set to 1 to enable some debug std::cout statements
#define DEBUG 0
#include "pcoin_defs.cpp"
/* OLD VALUES */
/*
#define TCOIN_PATH "/home/login/tcoin"
#define TCOIN_MSG_PATH "/home/login/tcoin/messages/"
#define TCOIN_SALT_PATH "/home/login/tcoin/salts/"
#define TCOIN_PASS_PATH "/home/login/tcoin/passwords/"
#define TCOIN_PROG_ACT_PATH "/home/login/tcoin/program_accounting/"
#define PROG_ACT_W_SLASH "program_accounting/"
#define PCOIN_KEY_PATH_W_SLASH "/home/login/bin/pcoin_keys/"
#define PCOIN_NEW_KEY_CMD "/bin/cat /dev/urandom | /usr/bin/base64 | /usr/bin/head -c 64 | /usr/bin/tr '+' '-' | /usr/bin/tr '/' '_'"
#define LS_PCOIN_KEY_CMD "/bin/ls /home/login/bin/pcoin_keys"
#define TCOIN_CODEZ_PATH "/home/login/bin/tcoin_codez"
#define TCOIN_BIN_PATH_W_SPACE "/home/login/bin/tcoin "
#define PCOIN_BIN_PATH "/home/login/bin/pcoin"
#define PCOIN_BIN_PATH_W_SPACE "/home/login/bin/pcoin "
#define TCOIN_PATH_W_SLASH "/home/login/tcoin/"
#define TCOIN_SCRYPT_PATH "/home/login/bin/scrypt"
*/
#define LS_HOME_CMD "/bin/ls /home"
#define BIN_ECHO_CMD "/bin/echo $$"
#ifndef KROWBAR_OFF
#define KROWBAR_SCORE_PATH "/home/krowbar/Code/irc/data/tildescores.txt"
#define JU_SCORE_PATH "/home/jmjl/dev/juju/data/tildescores.txt"
#endif
#ifndef DA_OFF
#define TROIDO_DACOINS_CMD "cd /home/troido/daily_adventure/client/ && /home/troido/daily_adventure/client/daclient printinfo 2>&1 | /bin/grep -oP '(?<=\"Coins\", )\[[:digit:]]+'"
#endif
#ifndef MINERCOIN_OFF
#define MINERCOIN_CMD_PRE_USERNAME "/bin/grep -oP '(?<=\"~"
#define MINERCOIN_CMD_PRE_USERNAME2 "/bin/grep -oP '(?<=\""
#define MINERCOIN_CMD_POST_USERNAME "\": )[[:digit:]]+' /home/minerobber/Code/minerbot/minercoin.json"
#endif
#define USERNAME_LENGTH_LIMIT 25
#define TCOIN_MSG_LENGTH_LIMIT 280
#define ERR_MAIN_SEND_TOO_FEW_ARGS 6
#define ERR_MAIN_SEND_TOO_MANY_ARGS 7
#define ERR_MAIN_SEND_TOO_MANY_ARGS_MSG 104
#define ERR_SILENTSEND 2
#define ERR_MAIN_MSG_TOO_LONG 19
#define ERR_UNKNOWN_ARG 3
#define ERR_TCOIN_TO_SELF 5
#define ERR_RECEIVER_BLOCKED 4
#define ERR_NEGATIVE_SEND_AMOUNT 2
#define ERR_INSUFFICIENT_FUNDS 3
#define ERR_RECEIVER_NOT_FOUND 1
#define ERR_PCOIN_KEY_REFRESH_FAILED 20
#define ERR_IN_GET_INTERNAL_BALANCE -1
#define ERR_IN_ADD_INTERNAL_BALANCE_GET_INTERNAL_TOTAL_OWED_FAILED -3
#define ERR_ADD_INTERNAL_BALANCE_VALUE_TO_ADD_UNFULFILLABLE_USING_OWN_CURRENT_FUNDS -1
#define ERR_ADD_INTERNAL_BALANCE_USERNAME_DOESNT_EXIST -2
#define ERR_ADD_INTERNAL_BALANCE_ADD_TO_SELF -4
#define ERR_ADD_FILE_VALUE_INSUFFICIENT_FUNDS 1
#define ERR_ADD_FILE_VALUE_FATAL 999
#define ERR_IN_GET_INTERNAL_TOTAL_OWED_SELF_PROGRAM_DOESNT_EXIST -1
#define ERR_GET_FILE_VALUE_COULDNT_OPEN_BASEFILE 1
#define ERR_ADD_FILE_VALUE_COULDNT_OPEN_BASEFILE 1
#define ERR_SEND_MESSAGE_RECEIVER_MSG_FILE_UNABLE_TO_BE_UPDATED_FATAL 101
#define ERR_SEND_MESSAGE_PROGRAM_RECEIVER_MSG_FILE_UNABLE_TO_BE_UPDATED_FATAL 103
#define ERR_SEND_MESSAGE_SENDER_MSG_FILE_UNABLE_TO_BE_UPDATED_FATAL 102
#define ERR_SEND_MESSAGE_SENDER_PROGRAM_MSG_FILE_UNABLE_TO_BE_UPDATED_FATAL 104
#define ERR_KEY_EMPTY 22
#define ERR_KEY_NOT_IN_USE 9
#define ERR_NO_ARGS 8
#define ERR_IN_MAIN_GET_INTERNAL_TOTAL_OWED_FAILED 18
#define ERR_INTERNAL_BALANCE_USERNAME_NOT_FOUND 17
#define ERR_INTERNAL_BALANCE_NO_USERNAME_SUPPLIED 10
#define ERR_INTERNAL_BALANCE_TOO_MANY_ARGS 11
#define ERR_ADD_INTERNAL_BALANCE_TOO_FEW_ARGS 12
#define ERR_ADD_INTERNAL_BALANCE_TOO_MANY_ARGS 13
#define ERR_IN_MAIN_ADD_INTERNAL_BALANCE_AMOUNT_LARGER_THAN_COVERABLE_BY_UNOWED_BALANCE 14
#define ERR_IN_MAIN_ADD_INTERNAL_BALANCE_AMOUNT_MAKING_USER_INTERNAL_BALANCE_NEGATIVE 16
#define ERR_IN_MAIN_ADD_INTERNAL_BALANCE_NO_SUCH_USERNAME_FOUND 15
#define ERR_IN_MAIN_ADD_INTERNAL_BALANCE_ADD_TO_SELF 21
void exit_program(const int error_number)
{
// Cleanup to do before exiting the program
// Finally, we can exit
std::exit(error_number);
}
//custom function to convert ("abcd.de") to ("abcde")
long long int strtol100(const char* amount_str)
{
long long int result = 0;
int multiplier = 1;
int i=0;
if(amount_str[i]=='-')
{
multiplier = -1;
++i;
}
else if(amount_str[i]=='+')
{
++i;
}
else if(amount_str[i]=='\0') //empty string
{
return (long long int)(0);
}
//before the decimal point
while(amount_str[i]!='.')
{
if(amount_str[i]>='0' && amount_str[i]<='9')
result = result*10 + ((long long int)(amount_str[i]) - (long long int)('0'));
else if(amount_str[i]=='\0') //e.g. "500"
{
result *= (multiplier*100); //multiplied by 100 to get centitildecoins
return result;
}
else //error
{
return (long long int)(0);
}
++i;
}
//at decimal point
++i;
//after decimal point (i.e., tenth's place)
if(amount_str[i]>='0' && amount_str[i]<='9')
result = result*100 + ((long long int)(amount_str[i]) - (long long int)('0'))*10;
else if(amount_str[i]=='\0') //e.g. "500."
{
result *= (multiplier*100); //multiplied by 100 to get centitildecoins
return result;
}
else //error
{
return (long long int)(0);
}
//before hundredth's place
++i;
//at hundredth's place
if(amount_str[i]>='0' && amount_str[i]<='9')
{
result += ((long long int)(amount_str[i]) - (long long int)('0'));
}
else if(amount_str[i]=='\0') //e.g. "500.3"
{
result *= multiplier;
return result;
}
else //error
{
return (long long int)(0);
}
result *= multiplier;
return result;
}
//custom function to convert integer string to long long int fast
long long int strtol_fast(const char* amount_str)
{
long long int result = 0;
int multiplier = 1;
int i=0;
if(amount_str[i]=='-')
{
multiplier = -1;
++i;
}
else if(amount_str[i]=='+')
{
++i;
}
else if(amount_str[i]=='\0') //empty string
{
return (long long int)(0);
}
//before the end of the string
while(amount_str[i]>='0' && amount_str[i]<='9')
{
result = result*10 + ((long long int)(amount_str[i]) - (long long int)('0'));
++i;
}
result *= multiplier;
return result;
}
//string constant time compare (only checks for equality (return 0 if equal))
int strctcmp(const char*a, const char*b)
{
if(!(*a) || !(*b)) //a or b are empty (start with a NULL character)
return 1;
int r = 0;
for (; *a && *b; ++a, ++b)
{
r |= *a != *b;
}
return r;
}
std::string exec(const char* cmd) {
int i=0;
do
{
std::array<char, 128> buffer;
std::string result;
try
{
std::shared_ptr<FILE> pipe(popen(cmd, "r"), pclose);
if (!pipe)
{
++i;
std::cout << "popen() failed - " << i << std::endl;
continue;
}
while (!feof(pipe.get())) {
if (fgets(buffer.data(), 128, pipe.get()) != nullptr)
result += buffer.data();
}
return result;
}
catch (const std::exception& e)
{
++i;
std::cout << "popen() failed - " << i << " (exception " << e.what() << ")" << std::endl;
continue;
}
} while(i < 100);
throw std::runtime_error("popen() failed!");
return std::string(""); //dummy line, never executes
}
std::string exec2(const char* cmd, std::string input) {
std::string data_length_cmd_str = std::string(cmd) + std::string(PIPED_WORD_COUNT_CMD);
const char* data_length_cmd_cstr = data_length_cmd_str.c_str();
std::string data_length_str = exec(data_length_cmd_cstr);
long long int data_length = strtol_fast(data_length_str.c_str())+1;
std::vector <char> buffer;
buffer.reserve(data_length);
std::string result;
files_t *fp = popen2(cmd);
if (!fp) throw std::runtime_error("popen2() failed!");
fputs((input+std::string("\n")).c_str(), fp->in);
std::fflush(fp->in);
while (!feof(fp->out)) {
if (fgets(buffer.data(), data_length, fp->out) != nullptr)
result += buffer.data();
}
pclose2(fp);
return result;
}
long long int get_file_value(const char* file_name)
{
char* file_path = new char[strlen(file_name)+sizeof(TCOIN_PATH_W_SLASH)+4];
std::strcpy(file_path, TCOIN_PATH_W_SLASH);
std::strcat(file_path, file_name);
std::strcat(file_path, ".txt");
std::ifstream file(file_path);
if(!file)
{
if(!strcmp(file_name, "base/base"))
{
std::cerr << "\nError! Could not open file at " << file_path << "!\n\n";
exit_program(ERR_GET_FILE_VALUE_COULDNT_OPEN_BASEFILE);
}
else {
std::cerr << "\nError! Could not open file at " << file_path << "! Assuming its internal content is \"0\\n\".\n\n";
return (long long int)(0);
}
}
std::ostringstream ss;
ss << file.rdbuf();
delete[] file_path;
return strtol_fast(ss.str().c_str());
}
int add_file_value(const char* file_name, const long long int &value_to_add, const long long int &base_amount)
{
char* file_path = new char[strlen(file_name)+sizeof(TCOIN_PATH_W_SLASH)+4];
char* temp_file_path = new char[strlen(file_name)+sizeof(TCOIN_PATH_W_SLASH)+8];
std::strcpy(file_path, TCOIN_PATH_W_SLASH);
std::strcat(file_path, file_name);
std::strcpy(temp_file_path, file_path);
std::strcat(file_path, ".txt");
std::strcat(temp_file_path, "_tmp");
std::strcat(temp_file_path, ".txt");
std::ifstream file(file_path);
if(!file)
{
if(!strcmp(file_name, "base/base"))
{
std::cerr << "\nError! Could not open file at " << file_path << "!\n\n";
file.close();
delete[] file_path;
delete[] temp_file_path;
exit_program(ERR_ADD_FILE_VALUE_COULDNT_OPEN_BASEFILE);
}
}
std::ostringstream ss;
ss << file.rdbuf();
long long int old_value = strtol_fast(ss.str().c_str());
//sufficient funds check
if(value_to_add < 0 && (old_value + base_amount + value_to_add < 0))
{
file.close();
delete[] file_path;
delete[] temp_file_path;
return ERR_ADD_FILE_VALUE_INSUFFICIENT_FUNDS;
}
long long int new_value = old_value + value_to_add;
// Writing new value to file
file.close();
std::ofstream file2(temp_file_path);
file2 << new_value << "\n";
file2.close();
chmod(temp_file_path, (S_IRUSR | S_IWUSR) & ~S_IRWXG & ~S_IRWXO);
if(!file2) //error
{
std::cerr << "Fatal error " << ERR_ADD_FILE_VALUE_FATAL << ": the file \"" << file_name << "\" was unable to be updated. Please contact " << TCOIN_ERR_CONTACT_EMAIL << " to report this error (because it requires manual recovery).";
exit_program(ERR_ADD_FILE_VALUE_FATAL);
}
else
{
std::remove(file_path);
while(1)
{
if(!std::rename(temp_file_path, file_path))
{
chmod(file_path, (S_IRUSR | S_IWUSR) & ~S_IRWXG & ~S_IRWXO);
break;
}
}
}
delete[] file_path;
delete[] temp_file_path;
return 0;
}
std::string global_username;
std::string get_username()
{
return global_username;
}
int set_username(const std::string &username)
{
global_username.assign(username);
return 0;
}
std::string formatted_amount(long long int const& amount, char const* appended_chars_default = "", char const* appended_chars_singular = "")
{
std::ostringstream ss;
bool is_non_negative = amount >= 0 ? true : false;
if(!is_non_negative) //i.e., is negative
ss << "-";
if(((is_non_negative*2-1)*amount) % 100 == 0)
ss << (is_non_negative*2-1)*amount/100;
else if((is_non_negative*2-1)*amount % 100 < 10)
ss << (is_non_negative*2-1)*amount/100 << ".0" << (is_non_negative*2-1)*amount % 100;
else
ss << (is_non_negative*2-1)*amount/100 << "." << (is_non_negative*2-1)*amount % 100;
if(((is_non_negative*2-1)*amount == 100) && strcmp(appended_chars_singular, ""))
ss << appended_chars_singular;
else
ss << appended_chars_default;
std::string formatted_string(ss.str());
return formatted_string;
}
void cout_formatted_amount(long long int const& amount, char const* appended_chars_default = "", char const* appended_chars_singular = "", bool negative_with_parentheses = false)
{
bool amount_is_negative = (amount < 0);
if(negative_with_parentheses && amount_is_negative) std::cout << "(";
std::cout << formatted_amount(amount, appended_chars_default, appended_chars_singular);
if(negative_with_parentheses && amount_is_negative) std::cout << ")";
}
long long int base_amount;
long long int user_amount;
long long int krowbar_amount[2]; //krowbar's tilde game amount
long long int minercoin_amount[2]; //minerobber's !minercoin game amount (tilded ~username entry and non-tilded username entry, both)
void show_breakdown(const long long int &amount0 = 0, char const* amount0_source = "", const long long int &amount1 = 0, char const* amount1_source = "", const long long int &amount2 = 0, char const* amount2_source = "", const long long int &amount3 = 0, char const* amount3_source = "", const long long int &amount4 = 0, char const* amount4_source = "", const long long int &amount5 = 0, char const* amount5_source = "")
{
bool a0 = (amount0 != 0 && strcmp(amount0_source, ""));
bool a1 = (amount1 != 0 && strcmp(amount1_source, ""));
bool a2 = (amount2 != 0 && strcmp(amount2_source, ""));
bool a3 = (amount3 != 0 && strcmp(amount3_source, ""));
bool a4 = (amount4 != 0 && strcmp(amount4_source, ""));
bool a5 = (amount5 != 0 && strcmp(amount5_source, ""));
if(a0 || a1 || a2 || a3 || a4 || a5)
{
if(a0)
{
std::cout << amount0_source << ",";
cout_formatted_amount(amount0);
if(a1 || a2 || a3 || a4 || a5)
{
std::cout << ";";
}
}
if(a1)
{
std::cout << amount1_source << ",";
cout_formatted_amount(amount1);
if(a2 || a3 || a4 || a5)
{
std::cout << ";";
}
}
if(a2)
{
std::cout << amount2_source << ",";
cout_formatted_amount(amount2);
if(a3 || a4 || a5)
{
std::cout << ";";
}
}
if(a3)
{
std::cout << amount3_source << ",";
cout_formatted_amount(amount3);
if(a4 || a5)
{
std::cout << ";";
}
}
if(a4)
{
std::cout << amount4_source << ",";
cout_formatted_amount(amount4);
if(a5)
{
std::cout << ";";
}
}
if(a5)
{
std::cout << amount5_source << ",";
cout_formatted_amount(amount5);
}
std::cout << "\n";
}
}
void show_messages(const char* username)
{
std::string messages_path = std::string(TCOIN_MSG_PATH) + std::string(username) + std::string("_messages.txt");
std::ifstream fin(messages_path.c_str());
char ch;
bool first_char_is_newline = false;
bool reached_eof = false;
for(int i=0; i < 2; ++i)
{
if(ch = fin.get())
{
if(ch == std::istream::traits_type::eof()) //https://stackoverflow.com/questions/4533063/how-does-ifstreams-eof-work
{
if(first_char_is_newline && i==1)
{
reached_eof = true;
std::cout << "No messages found.\n";
}
break;
}
else
{
if(i==0 && ch=='\n')
{
first_char_is_newline = true;
}
std::cout << ch;
}
}
}
if(!reached_eof)
{
std::cout << fin.rdbuf();
}
//removing eofbit
fin.clear();
//moving back two places from the end to read the last two characters
fin.seekg(-2, std::ios::end);
char chs[2]; //chs = characters
chs[0] = fin.get();
chs[1] = fin.get();
fin.get(); //to set eofbit again because I like it to be just the way it was before removing the eofbit
if(chs[0]!='\n' && chs[1]=='\n') //if only one newline at the end of the file
std::cout << "\n"; //print another one
fin.close();
}
void show_tsv_messages(const char* username) //tab-separated-value messages (tsv)
{
std::string messages_path = std::string(TCOIN_PROG_ACT_PATH) + std::string(username) + std::string("/_MESSAGES.txt");
std::ifstream fin(messages_path.c_str());
std::cout << fin.rdbuf();
std::cout << "\n";
fin.close();
}
void show_messages_tail(const char* username, int lineCount)
{
size_t const granularity = 100 * lineCount;
std::string messages_path = std::string(TCOIN_MSG_PATH) + std::string(username) + std::string("_messages.txt");
std::ifstream source(messages_path.c_str(), std::ios_base::binary);
source.seekg(0, std::ios_base::end);
size_t size = static_cast<size_t>(source.tellg());
std::vector<char> buffer;
int newlineCount = 0; //pseudo newline count
while(source && buffer.size() != size && newlineCount <= lineCount)
{
buffer.resize(std::min(buffer.size() + granularity, size));
source.seekg(-static_cast<std::streamoff>(buffer.size()), std::ios_base::end);
source.read(buffer.data(), buffer.size());
newlineCount = std::count(buffer.begin(), buffer.end(), '\n');
for(std::vector<char>::size_type i = 0; i < (buffer.size()-1); ++i)
if(buffer[i] == '\n' && (buffer[i+1] == '\n' || buffer[i+1] == ' '))
{
newlineCount--; // An entry as follows: "<stuff>\n \_message>\n\n" must be treated as a single newline-ended line (and thus count 1 newline (not 3))
++i; //three consecutive newlines should not be "two pairs" of newlines
}
}
std::vector<char>::iterator start = buffer.begin();
while(newlineCount > lineCount)
{
start = std::find(start, buffer.end(), '\n') + 1;
if(*start == ' ' || *start == '\n')
continue; //we're counting cutting off a '\n ' (and '\n\n') as zero (and one) newline cut off because "<stuff>\n \_message>\n\n" is one message
--newlineCount;
}
std::cout << "Last " << lineCount << " Messages:\n";
std::vector<char>::iterator end = remove(start, buffer.end(), '\r');
if((start == (end-1)) && (*(start) == '\n')) //there is only one character, and it is a newline (i.e.. no messages)
std::cout << "\nNo messages found.\n\n";
else
{
if(*(start) != '\n') //if it starts with a newline, don't put another one
std::cout << "\n";
std::cout << std::string(start, end);
if(*(end-2) != '\n' && *(end-1) == '\n') //if it ends with two newlines, don't put another one
std::cout << "\n";
}
}
void show_tsv_messages_tail(const char* username, int lineCount)
{
size_t const granularity = 100 * lineCount;
std::string messages_path = std::string(TCOIN_PROG_ACT_PATH) + std::string(username) + std::string("/_MESSAGES.txt");
std::ifstream source(messages_path.c_str(), std::ios_base::binary);
source.seekg(0, std::ios_base::end);
size_t size = static_cast<size_t>(source.tellg());
std::vector<char> buffer;
int newlineCount = 0; //pseudo newline count
while(source && buffer.size() != size && newlineCount <= lineCount)
{
buffer.resize(std::min(buffer.size() + granularity, size));
source.seekg(-static_cast<std::streamoff>(buffer.size()), std::ios_base::end);
source.read(buffer.data(), buffer.size());
newlineCount = std::count(buffer.begin(), buffer.end(), '\n');
}
std::vector<char>::iterator start = buffer.begin();
while(newlineCount > lineCount)
{
start = std::find(start, buffer.end(), '\n') + 1;
--newlineCount;
}
std::vector<char>::iterator end = remove(start, buffer.end(), '\r');
std::cout << std::string(start, end);
}
bool program_exists(const char* username)
{
char *program_key_path = new char[strlen(username) + sizeof(PCOIN_KEY_PATH_W_SLASH) + 4]; //sizeof counts NULL char at the end too
std::strcpy(program_key_path, PCOIN_KEY_PATH_W_SLASH);
std::strcat(program_key_path, username);
std::strcat(program_key_path, ".txt");
std::ifstream fin(program_key_path);
bool return_value = false;
if(!fin) //file doesn't exist
{
fin.close();
delete[] program_key_path;
return_value = false; //program account not found
}
else
{
fin.close();
delete[] program_key_path;
return_value = true; //program account found
}
return return_value;
}
std::string refresh_pcoin_key()
{
std::string new_key;
const std::string username = get_username();
char* program_key_path = new char[username.length() + sizeof(PCOIN_KEY_PATH_W_SLASH) + 4]; //sizeof counts NULL char at the end too
char* temp_program_key_path = new char[username.length() + sizeof(PCOIN_KEY_PATH_W_SLASH) + 8]; //sizeof counts NULL char at the end too
char* temp2_program_key_path = new char[username.length() + sizeof(PCOIN_KEY_PATH_W_SLASH) + 9]; //sizeof counts NULL char at the end too
std::strcpy(program_key_path, PCOIN_KEY_PATH_W_SLASH);
std::strcat(program_key_path, username.c_str());
std::strcpy(temp_program_key_path, program_key_path);
std::strcpy(temp2_program_key_path, program_key_path);
std::strcat(program_key_path, ".txt");
std::strcat(temp_program_key_path, "_tmp.txt");
std::strcat(temp2_program_key_path, "_tmp2.txt");
std::ifstream fin(program_key_path);
if(!fin)
{
delete[] program_key_path;
delete[] temp_program_key_path;
delete[] temp2_program_key_path;
return std::string("n/a");
}
fin.close();
if(!std::rename(program_key_path, temp_program_key_path))
{
chmod(temp_program_key_path, (S_IRUSR | S_IWUSR) & ~S_IRWXG & ~S_IRWXO);
std::ofstream fin2(temp2_program_key_path);
if(!fin2)
{
fin2.close();
while(1)
{
if(!std::rename(temp_program_key_path, program_key_path))
{
chmod(program_key_path, S_IRUSR & ~S_IWUSR & ~S_IXUSR & ~S_IRWXG & ~S_IRWXO);
break;
}
}
delete[] temp2_program_key_path;
delete[] temp_program_key_path;
delete[] program_key_path;
return std::string("n/a");
}
new_key = exec(PCOIN_NEW_KEY_CMD);
fin2 << new_key << "\n";
fin2.close();
chmod(temp2_program_key_path, S_IRUSR & ~S_IWUSR & ~S_IXUSR & ~S_IRWXG & ~S_IRWXO);
while(1)
{
if(!std::rename(temp2_program_key_path, program_key_path))
{
chmod(program_key_path, S_IRUSR & ~S_IWUSR & ~S_IXUSR & ~S_IRWXG & ~S_IRWXO);
while(1)
{
if(!std::remove(temp_program_key_path))
break;
}
break;
}
}
delete[] program_key_path;
delete[] temp_program_key_path;
delete[] temp2_program_key_path;
return new_key;
}
else
{
delete[] program_key_path;
delete[] temp_program_key_path;
delete[] temp2_program_key_path;
return std::string("n/a");
}
delete[] program_key_path;
delete[] temp_program_key_path;
delete[] temp2_program_key_path;
return std::string("n/a");
}
bool username_exists(const char* username)
{
const static std::string all_usernames = exec(LS_HOME_CMD);
std::istringstream iss(all_usernames);
static std::vector<std::string> usernames{std::istream_iterator<std::string>{iss}, std::istream_iterator<std::string>{}};
if(std::find(usernames.begin(), usernames.end(), username) != usernames.end())
{
return true;
}
return program_exists(username);
}
bool file_is_empty(std::ifstream& pFile)
{
return pFile.peek() == std::ifstream::traits_type::eof();
}
bool files_are_same(const char* file_path1, const char* file_path2)
{
std::ifstream fin1(file_path1);
if(!fin1)
return false;
std::ifstream fin2(file_path2);
if(!fin2)
return false;
char c1;
char c2;
while(fin1.get(c1) && fin2.get(c2)) //we need to go inside the loop body even if one of the reads fails, so we use || instead of &&
{
if(c2 != c1)
return false;
}
fin2.get(c2); //when fin1.get(c1) fails, fin2.get(c2) is not executed because of short-circuited boolean operators. This line compensates for that.
if(fin1 || fin2) //one of the files must still be valid while both files are not simulatenously valid (after the while loop), which means the files are of different sizes
return false;
return true;
//Because of (!fin1 && fin2) || (fin1 && !fin2), if any one
//file is larger than the other, the files are deemed not the same.
//If the last characters of the two files have not been read, then
//both "fin1" and "fin2" will return true in the next iteration, and
//in the current iteration, c1 and c2 have valid values that can be compared.
//If the last characters of the two files were read, then "fin1" and "fin2"
//will still return true until the next time fin1.get() or fin2.get() is called.
//c1 and c2 still carry valid values (namely, the last characters of fin1 and fin2)
//which are compared. At the next iteration, both fin1 and fin2 fail and the loop exits.
//This means all c1's and c2's were equal in the iterations before. Thus, the two files are
//deemed the same.
}
int send_message(const char* sender_username, const char* receiver_username, const char* message, const long long int &amount_sent, const char* option)
{
std::string random_string = std::to_string(rand());
char *receiver_path = new char[strlen(receiver_username) + sizeof(TCOIN_MSG_PATH) + 13]; //sizeof() includes '\0'
char *temp_receiver_path = new char[strlen(receiver_username) + strlen(random_string.c_str()) + sizeof(TCOIN_MSG_PATH) + 13];
std::strcpy(receiver_path, TCOIN_MSG_PATH);
std::strcat(receiver_path, receiver_username);
std::strcat(receiver_path, "_messages.txt"); // length = 13
std::strcpy(temp_receiver_path, TCOIN_MSG_PATH);
std::strcat(temp_receiver_path, receiver_username);
std::strcat(temp_receiver_path, random_string.c_str());
std::strcat(temp_receiver_path, "_messages.txt"); // length = 13
//create receiver's message file if none exists
//the message will be included in the receiver's
//account when she/he initialises her/his account
//at a later time
char *receiver_salt_path = new char[strlen(receiver_username) + sizeof(TCOIN_SALT_PATH) + 9];
char *receiver_salt_logged_in_path = new char[strlen(receiver_username) + sizeof(TCOIN_SALT_PATH) + 19];
std::strcpy(receiver_salt_path, TCOIN_SALT_PATH);
std::strcat(receiver_salt_path, receiver_username);
std::strcpy(receiver_salt_logged_in_path, receiver_salt_path);
std::strcat(receiver_salt_path, "_salt.txt"); // length = 9
std::strcat(receiver_salt_logged_in_path, "_salt_logged_in.txt"); // length = 19
std::ifstream fin(receiver_path);
std::ifstream fin2(receiver_salt_path);
std::ifstream fin3(receiver_salt_logged_in_path);
if((!fin || file_is_empty(fin)) && ((!program_exists(receiver_username)) || ((!fin2 || file_is_empty(fin2)) && (!fin3 || file_is_empty(fin3)))))
{
fin.close();
std::ofstream fout(receiver_path, std::fstream::trunc);
fout << "\n";
fout.close();
}
else
fin.close();
fin2.close();
fin3.close();
chmod(receiver_path, (S_IRUSR | S_IWUSR) & ~S_IRWXG & ~S_IRWXO);
delete[] receiver_salt_path;
delete[] receiver_salt_logged_in_path;
while(1)
{
if(!std::rename(receiver_path, temp_receiver_path))
{
char *really_temp_receiver_path = new char[strlen(temp_receiver_path) + 5];
std::strcpy(really_temp_receiver_path, temp_receiver_path);
std::strcat(really_temp_receiver_path, "_tmp");
std::ifstream fin(temp_receiver_path);
std::ofstream fout(really_temp_receiver_path);
if(!file_is_empty(fin))
fout << fin.rdbuf();
fin.close();
time_t now = std::time(NULL);
char dt[26];
#ifndef TILDEINSTITUTE
std::strftime(dt, 26, "%a %b %_d %T %Y", std::gmtime(&now));
#else
std::strftime(dt, 26, "%a %b %e %T %Y", std::gmtime(&now));
#endif
char sender_formatted_string[26];
char sender_arrow_formatted_string[47];
char sender_arrow_string[47];
char receiver_formatted_string[26];
std::snprintf(sender_formatted_string, 26, "%25s", sender_username);
std::snprintf(receiver_formatted_string, 26, "%-25s", receiver_username);
int sender_username_length = std::strlen(sender_username);
int number_of_chars = 26 >= sender_username_length ? 26 : sender_username_length;
std::strncpy(sender_arrow_string, sender_username, number_of_chars);
sender_arrow_string[number_of_chars] = '\0';
std::strcat(sender_arrow_string, " ----");
std::string amount_sent_str = formatted_amount(amount_sent);
std::strncat(sender_arrow_string, amount_sent_str.c_str(), 10);
std::strcat(sender_arrow_string, "----> ");
std::snprintf(sender_arrow_formatted_string, 47, "%46s", sender_arrow_string);
fout << dt << ": " << sender_arrow_formatted_string << receiver_username;
if(!strcmp(message, "")) //if message is empty
fout << "\n";
else
{
fout << "\n \\_ " << sender_username << " said: ";
for(int i=0; message[i]!='\0'; ++i)
{
if(message[i] == '\n')
fout << "<new-line>"; //return-key pressed
else if(message[i] == '\v')
fout << "<vertical-tab>"; //vertical-tab symbol entered
else
fout << message[i];
}
fout << "\n\n";
}
fout.close();
chmod(really_temp_receiver_path, (S_IRUSR | S_IWUSR) & ~S_IRWXG & ~S_IRWXO);
if(!fout) //error
{
std::cerr << "Fatal error " << ERR_SEND_MESSAGE_RECEIVER_MSG_FILE_UNABLE_TO_BE_UPDATED_FATAL << ": the receiver message file was unable to be updated. Please contact " << TCOIN_ERR_CONTACT_EMAIL << " to report this error (because it requires manual recovery).";
exit_program(ERR_SEND_MESSAGE_RECEIVER_MSG_FILE_UNABLE_TO_BE_UPDATED_FATAL);
}
else
{
std::remove(temp_receiver_path);
}
while(1)
{
if(!std::rename(really_temp_receiver_path, temp_receiver_path))
break;
}
// unlock_receiver_messages
while(1)
{
if(!std::rename(temp_receiver_path, receiver_path))
break;
}
chmod(receiver_path, (S_IRUSR | S_IWUSR) & ~S_IRWXG & ~S_IRWXO);
delete[] really_temp_receiver_path;
delete[] temp_receiver_path;
delete[] receiver_path;
//additional place to write if sending to a program:
if(program_exists(receiver_username))
{
random_string = std::string("rand");
std::string program_receiver_path = std::string(TCOIN_PROG_ACT_PATH) + std::string(receiver_username) + std::string("/_MESSAGES.txt");
std::string temp_program_receiver_path = std::string(TCOIN_PROG_ACT_PATH) + std::string(receiver_username) + std::string("/_MESSAGES") + random_string + std::string(".txt");
std::string really_temp_program_receiver_path = temp_program_receiver_path + std::string("_tmp");
//create program receiver's _MESSAGES file if none exists
{
std::ifstream fin(program_receiver_path.c_str());
std::ifstream fin2(temp_program_receiver_path.c_str());
if((!fin || file_is_empty(fin)) && (!fin2))
{
fin.close();
std::ofstream fout(program_receiver_path.c_str(), std::fstream::trunc);
fout << "\n";
fout.close();
}
else
fin.close();
fin2.close();
chmod(program_receiver_path.c_str(), (S_IRUSR | S_IWUSR) & ~S_IRWXG & ~S_IRWXO);
}
while(1)
{
if(!std::rename(program_receiver_path.c_str(), temp_program_receiver_path.c_str()))
{
std::ifstream fin(temp_program_receiver_path.c_str());
std::ofstream fout(really_temp_program_receiver_path.c_str());
if(!file_is_empty(fin))
fout << fin.rdbuf();
fin.close();
//now, sender_username, receiver_username, amount_sent
char sender_formatted_string[26];
char receiver_formatted_string[26];
std::snprintf(sender_formatted_string, 26, "%s", sender_username);
std::snprintf(receiver_formatted_string, 26, "%s", receiver_username);
std::string amount_sent_str = formatted_amount(amount_sent);
fout << now << "\t" << sender_formatted_string << "\t" << receiver_formatted_string << "\t" << amount_sent_str;
if(!strcmp(message, "")) //if message is empty
fout << "\n";
else
{
fout << "\t" << sender_formatted_string << "\t";
for(int i=0; message[i]!='\0'; ++i)
{
if(message[i] == '\n')
fout << "<new-line>"; //return-key pressed
else if(message[i] == '\v')
fout << "<vertical-tab>"; //vertical-tab symbol entered
else
fout << message[i];
}
fout << "\n";
}
fout.close();
chmod(really_temp_program_receiver_path.c_str(), (S_IRUSR | S_IWUSR) & ~S_IRWXG & ~S_IRWXO);
if(!fout) //error
{
std::cerr << "Fatal error " << ERR_SEND_MESSAGE_PROGRAM_RECEIVER_MSG_FILE_UNABLE_TO_BE_UPDATED_FATAL << ": the receiver program_message file was unable to be updated. Please contact " TCOIN_ERR_CONTACT_EMAIL " to report this error (because it requires manual recovery).";
exit_program(ERR_SEND_MESSAGE_PROGRAM_RECEIVER_MSG_FILE_UNABLE_TO_BE_UPDATED_FATAL);
}
else
{
std::remove(temp_program_receiver_path.c_str());
}
while(1)
{
if(!std::rename(really_temp_program_receiver_path.c_str(), temp_program_receiver_path.c_str()))
break;
}
// unlock_receiver_program_messages
while(1)
{
if(!std::rename(temp_program_receiver_path.c_str(), program_receiver_path.c_str()))
break;
}
chmod(program_receiver_path.c_str(), (S_IRUSR | S_IWUSR) & ~S_IRWXG & ~S_IRWXO);
break;
}//if statement with !std::rename for receiver's program accounting _messages file
}//while loop for program accounting receiver's _messages file
}//receiver is program account
//locking sender_messages_after_receiver_messages_unlocked
random_string = std::to_string(rand());
char *sender_path = new char[strlen(sender_username) + sizeof(TCOIN_MSG_PATH) + 13];
char *temp_sender_path = new char[strlen(sender_username) + strlen(random_string.c_str()) + sizeof(TCOIN_MSG_PATH) + 13];
std::strcpy(sender_path, TCOIN_MSG_PATH);
std::strcat(sender_path, sender_username);
std::strcat(sender_path, "_messages.txt"); // length = 13
std:strcpy(temp_sender_path, TCOIN_MSG_PATH);
std::strcat(temp_sender_path, sender_username);
std::strcat(temp_sender_path, random_string.c_str());
std::strcat(temp_sender_path, "_messages.txt"); // length = 13
while(1)
{
if(!std::rename(sender_path, temp_sender_path))
{
char *really_temp_sender_path = new char[strlen(temp_sender_path) + 5];
std::strcpy(really_temp_sender_path, temp_sender_path);
std::strcat(really_temp_sender_path, "_tmp");
fin.open(temp_sender_path);
fout.open(really_temp_sender_path);
chmod(really_temp_sender_path, (S_IRUSR | S_IWUSR) & ~S_IRWXG & ~S_IRWXO);
fout << fin.rdbuf();
now = std::time(NULL);
#ifndef TILDEINSTITUTE
std::strftime(dt, 26, "%a %b %_d %T %Y", std::gmtime(&now));
#else
std::strftime(dt, 26, "%a %b %e %T %Y", std::gmtime(&now));
#endif
char sender_formatted_string_right_aligned[26];
char receiver_arrow_formatted_string[47];
char receiver_arrow_string[47];
std::snprintf(receiver_formatted_string, 26, "%25s", receiver_username);
std::snprintf(sender_formatted_string, 26, "%-25s", sender_username);
std::snprintf(sender_formatted_string_right_aligned, 26, "%25s", sender_username);
int receiver_username_length = std::strlen(receiver_username);
int number_of_chars = 26 >= receiver_username_length ? 26 : receiver_username_length;
std::strncpy(receiver_arrow_string, receiver_username, number_of_chars);
receiver_arrow_string[number_of_chars] = '\0';
std::strcat(receiver_arrow_string, " <---");
std::string amount_sent_str = formatted_amount(amount_sent);
std::strncat(receiver_arrow_string, amount_sent_str.c_str(), 10);
std::strcat(receiver_arrow_string, "----- ");
std::snprintf(receiver_arrow_formatted_string, 47, "%46s", receiver_arrow_string);
fout << dt << ": " << receiver_arrow_formatted_string << sender_username;
if(!strcmp(message, "")) //if message is empty
fout << "\n";
else
{
fout << "\n \\_ " << sender_username << " said: ";
for(int i=0; message[i]!='\0'; ++i)
{
if(message[i] == '\n')
fout << "<new-line>"; //return-key pressed
else if(message[i] == '\v')
fout << "<vertical-tab>"; //vertical-tab symbol entered
else
fout << message[i];
}
fout << "\n\n";
}
fin.close();
fout.close();
if(!fout) //error
{
std::cerr << "Fatal error " << ERR_SEND_MESSAGE_SENDER_MSG_FILE_UNABLE_TO_BE_UPDATED_FATAL << ": the sender message file was unable to be updated. Please contact " << TCOIN_ERR_CONTACT_EMAIL << " to report this error (because it requires manual recovery).";
exit_program(ERR_SEND_MESSAGE_SENDER_MSG_FILE_UNABLE_TO_BE_UPDATED_FATAL);
}
else
{
std::remove(temp_sender_path);
}
while(1)
{
if(!std::rename(really_temp_sender_path, temp_sender_path))
break;
}
while(1)
{
if(!std::rename(temp_sender_path, sender_path))
break;
}
delete[] really_temp_sender_path;
delete[] temp_sender_path;
delete[] sender_path;
//additional place to write if sending from a program:
if(program_exists(sender_username))
{
random_string = std::string("rand");
std::string program_sender_path = std::string(TCOIN_PROG_ACT_PATH) + std::string(sender_username) + std::string("/_MESSAGES.txt");
std::string temp_program_sender_path = std::string(TCOIN_PROG_ACT_PATH) + std::string(sender_username) + std::string("/_MESSAGES") + random_string + std::string(".txt");
std::string really_temp_program_sender_path = temp_program_sender_path + std::string("_tmp");
//create program sender's _MESSAGES file if none exists
{
std::ifstream fin(program_sender_path.c_str());
std::ifstream fin2(temp_program_sender_path.c_str());
if((!fin || file_is_empty(fin)) && (!fin2))
{
fin.close();
std::ofstream fout(program_sender_path.c_str(), std::fstream::trunc);
fout << "\n";
fout.close();
}
else
fin.close();
fin2.close();
chmod(program_sender_path.c_str(), (S_IRUSR | S_IWUSR) & ~S_IRWXG & ~S_IRWXO);
}
while(1)
{
if(!std::rename(program_sender_path.c_str(), temp_program_sender_path.c_str()))
{
std::ifstream fin(temp_program_sender_path.c_str());
std::ofstream fout(really_temp_program_sender_path.c_str());
if(!file_is_empty(fin))
fout << fin.rdbuf();
fin.close();
//now (updated by code above to reflect "sending time"), sender_username, receiver_username, amount_sent
char sender_formatted_string[26];
char receiver_formatted_string[26];
std::snprintf(sender_formatted_string, 26, "%s", sender_username);
std::snprintf(receiver_formatted_string, 26, "%s", receiver_username);
std::string amount_sent_str = formatted_amount(-1*amount_sent);
fout << now << "\t" << receiver_formatted_string << "\t" << sender_formatted_string << "\t" << amount_sent_str;
if(!strcmp(message, "")) //if message is empty
fout << "\n";
else
{
fout << "\t" << sender_formatted_string << "\t";
for(int i=0; message[i]!='\0'; ++i)
{
if(message[i] == '\n')
fout << "<new-line>"; //return-key pressed
else if(message[i] == '\v')
fout << "<vertical-tab>"; //vertical-tab symbol entered
else
fout << message[i];
}
fout << "\n";
}
fout.close();
chmod(really_temp_program_sender_path.c_str(), (S_IRUSR | S_IWUSR) & ~S_IRWXG & ~S_IRWXO);
if(!fout) //error
{
std::cerr << "Fatal error " << ERR_SEND_MESSAGE_SENDER_PROGRAM_MSG_FILE_UNABLE_TO_BE_UPDATED_FATAL << ": the sender program message file was unable to be updated. Please contact " << TCOIN_ERR_CONTACT_EMAIL << " to report this error (because it requires manual recovery).";
exit_program(ERR_SEND_MESSAGE_SENDER_PROGRAM_MSG_FILE_UNABLE_TO_BE_UPDATED_FATAL);
}
else
{
std::remove(temp_program_sender_path.c_str());
}
while(1)
{
if(!std::rename(really_temp_program_sender_path.c_str(), temp_program_sender_path.c_str()))
break;
}
// unlock_sender_program_messages
while(1)
{
if(!std::rename(temp_program_sender_path.c_str(), program_sender_path.c_str()))
break;
}
chmod(program_sender_path.c_str(), (S_IRUSR | S_IWUSR) & ~S_IRWXG & ~S_IRWXO);
break;
}//if statement with !std::rename for sender's program accounting _messages file
}//while loop for program accounting sender's _messages file
}//sender is program account
break;
}
}
break;
}
}
//finally, everything ran well and we can send the message to stdout if verbose is turned on
if(!strcmp(option, "verbose") && strcmp(message, "")) //message should not be empty
{
//since the message to stdout from send() ends with "\n\n", we have commented this below line out
//std::cout << "\n";
std::cout << "In addition, the transaction message \"" << message << "\" was ";
std::cout << "sent from `" << sender_username << "` to `" << receiver_username << "` successfully.";
std::cout << "\n\n";
}
return 0;
}
bool user_is_locked(const char* username)
{
std::ifstream fin((std::string(TCOIN_PATH_W_SLASH) + std::string(username) + std::string("_locked.txt")).c_str());
if(!fin)
return false;
return true;
}
int send(const char* sender_username, const char* receiver_username, const long long int &amount_to_send, const long long int &base_amount, const char* option)
{
int final_return_value = 0;
//receiver usrname check
if(username_exists(receiver_username))
{
if(!strcmp(sender_username, receiver_username))
{
std::cout << "\nSorry, you cannot send tildecoins to yourself.\n\n";
return ERR_TCOIN_TO_SELF;
}
if(user_is_locked(receiver_username))
{
if(!strcmp(option, "verbose"))
std::cout << "\nSorry, `" << receiver_username << "` does not wish to receive any tildecoins at this time.\n\n";
return ERR_RECEIVER_BLOCKED;
}
if(amount_to_send <= 0)
{
if(!strcmp(option, "verbose"))
std::cout << "\nSorry, that amount is not valid. The amount should be a positive decimal number when truncated to two decimal places.\n\n";
return ERR_NEGATIVE_SEND_AMOUNT;
}
else
{
std::string random_string = std::to_string(rand());
int return_value = -1;
//additional place to deduct from if the sender is a program (which is
//always the case when `pcoin` is used, but we'll check anyway
//we do this before the "tcoin send" part so that if program tries to send
//more than it owes receiver, it's checked before checking "tcoin send's"
//conditions
if(program_exists(sender_username))
{
random_string = std::string("rand"); //not really random
std::string program_sender_path = std::string(TCOIN_PROG_ACT_PATH) + std::string(sender_username) + std::string("/") + std::string(receiver_username) + std::string(".txt");
std::string temp_program_sender_path = std::string(TCOIN_PROG_ACT_PATH) + std::string(sender_username) + std::string("/") + std::string(receiver_username) + random_string + std::string(".txt");
std::string temp_program_sender_username = std::string(PROG_ACT_W_SLASH) + std::string(sender_username) + std::string("/") + std::string(receiver_username) + random_string;
//create program sender's "receiver's balance file" if none exists
{
std::ifstream fin(program_sender_path.c_str());
std::ifstream fin2(temp_program_sender_path.c_str());
#if DEBUG
std::cout << program_sender_path << "," << temp_program_sender_path << "," << !fin << "," << file_is_empty(fin) << "," << !fin2 << std::endl;
#endif
if((!fin || file_is_empty(fin)) && (!fin2))
{
fin.close();
std::ofstream fout(program_sender_path.c_str(), std::fstream::trunc);
fout << "0\n";
fout.close();
#if DEBUG
char dummy;
std::cout << "Press enter to continue"; std::cin >> dummy;
#endif
}
else
fin.close();
fin2.close();
chmod(program_sender_path.c_str(), (S_IRUSR | S_IWUSR) & ~S_IRWXG & ~S_IRWXO);
}
while(1)
{
if(!std::rename(program_sender_path.c_str(), temp_program_sender_path.c_str()))
{
//Insufficient funds check in add_file_value() itself
//third argument, base_amount, is 0 because program
//should not be allowed to send more than what is owed
//to the receiver
return_value = add_file_value(temp_program_sender_username.c_str(), -1 * amount_to_send, 0);
//The same amount must also be deducted from the "_total.txt" file
//which records the total amount owed to others
if(return_value == 0)
{
random_string = std::string("rand");
std::string program_sender_total_path = std::string(TCOIN_PROG_ACT_PATH) + std::string(sender_username) + std::string("/_TOTAL.txt");
std::string temp_program_sender_total_path = std::string(TCOIN_PROG_ACT_PATH) + std::string(sender_username) + std::string("/_TOTAL") + random_string + std::string(".txt");
std::string temp_program_sender_total_username = std::string(PROG_ACT_W_SLASH) + std::string(sender_username) + std::string("/_TOTAL") + random_string;
//create program sender's "total balance file" if none exists
{
std::ifstream fin(program_sender_total_path.c_str());
std::ifstream fin2(temp_program_sender_total_path.c_str());
if((!fin || file_is_empty(fin)) && (!fin2))
{
fin.close();
std::ofstream fout(program_sender_total_path.c_str(), std::fstream::trunc);
fout << "0\n";
fout.close();
}
else
fin.close();
fin2.close();
chmod(program_sender_total_path.c_str(), (S_IRUSR | S_IWUSR) & ~S_IRWXG & ~S_IRWXO);
}
while(1)
{
if(!std::rename(program_sender_total_path.c_str(), temp_program_sender_total_path.c_str()))
{
//Insufficient funds check in add_file_value() itself
//third argument, base_amount, is 0 because program
//should not be allowed to send more than what is owed
//to the receiver
add_file_value(temp_program_sender_total_username.c_str(), -1 * amount_to_send, 0);
random_string = std::to_string(rand());
// sizeof() includes '\0'
char* temp_sender_path = new char[strlen(sender_username) + strlen(random_string.c_str()) + sizeof(TCOIN_PATH_W_SLASH) + 4];
char* sender_path = new char[strlen(sender_username) + sizeof(TCOIN_PATH_W_SLASH) + 4];
char* temp_sender_username = new char[strlen(sender_username) + strlen(random_string.c_str()) + 1];
std::strcpy(temp_sender_username, sender_username);
std::strcat(temp_sender_username, random_string.c_str());
std::strcpy(temp_sender_path, TCOIN_PATH_W_SLASH);
std::strcat(temp_sender_path, temp_sender_username);
std::strcat(temp_sender_path, ".txt"); // length = 4
std::strcpy(sender_path, TCOIN_PATH_W_SLASH);
std::strcat(sender_path, sender_username);
std::strcat(sender_path, ".txt"); // length = 4
while(1)
{
if(!std::rename(sender_path, temp_sender_path))
{
//Insufficient funds check is in add_file_value()
return_value = add_file_value(temp_sender_username, -1 * amount_to_send, base_amount);
if(return_value == 0) // Funds sucessfully deducted from sender_username
{
random_string = std::string("rand");
// sizeof() includes '\0'
char *temp_receiver_path = new char[strlen(receiver_username) + strlen(random_string.c_str()) + sizeof(TCOIN_PATH_W_SLASH) + 4];
char *receiver_path = new char[strlen(receiver_username) + sizeof(TCOIN_PATH_W_SLASH) + 4];
char *temp_receiver_username = new char[strlen(receiver_username) + strlen(random_string.c_str()) + 1];
std::strcpy(temp_receiver_username, receiver_username);
std::strcat(temp_receiver_username, random_string.c_str());
std::strcpy(temp_receiver_path, TCOIN_PATH_W_SLASH);
std::strcat(temp_receiver_path, temp_receiver_username);
std::strcat(temp_receiver_path, ".txt");
std::strcpy(receiver_path, TCOIN_PATH_W_SLASH);
std::strcat(receiver_path, receiver_username);
std::strcat(receiver_path, ".txt");
//create receiver's balance file if none exists
//the balance will be included in the receiver's
//account when she/he initialises her/his account
//at a later time
char *receiver_salt_path = new char[strlen(receiver_username) + sizeof(TCOIN_SALT_PATH) + 9]; // sizeof() includes '\0'
char *receiver_salt_logged_in_path = new char[strlen(receiver_username) + sizeof(TCOIN_SALT_PATH) + 19];
std::strcpy(receiver_salt_path, TCOIN_SALT_PATH);
std::strcat(receiver_salt_path, receiver_username);
std::strcpy(receiver_salt_logged_in_path, receiver_salt_path);
std::strcat(receiver_salt_path, "_salt.txt"); // length = 9
std::strcat(receiver_salt_logged_in_path, "_salt_logged_in.txt"); // length = 19
std::ifstream fin(receiver_path);
std::ifstream fin2(receiver_salt_path);
std::ifstream fin3(receiver_salt_logged_in_path);
if((!fin || file_is_empty(fin)) && ((!program_exists(receiver_username)) || ((!fin2 || file_is_empty(fin2)) && (!fin3 || file_is_empty(fin3)))))
{
fin.close();
std::ofstream fout(receiver_path, std::fstream::trunc);
fout << "0\n";
fout.close();
}
else
fin.close();
fin2.close();
fin3.close();
chmod(receiver_path, (S_IRUSR | S_IWUSR) & ~S_IRWXG & ~S_IRWXO);
delete[] receiver_salt_path;
delete[] receiver_salt_logged_in_path;
while(1)
{
if(!std::rename(receiver_path, temp_receiver_path))
{
//Insufficient funds check in add_file_value() itself
add_file_value(temp_receiver_username, amount_to_send, base_amount);
//additional place to write if sending to a program:
if(program_exists(receiver_username))
{
random_string = std::string("rand");
std::string program_receiver_path = std::string(TCOIN_PROG_ACT_PATH) + std::string(receiver_username) + std::string("/") + std::string(sender_username) + std::string(".txt");
std::string temp_program_receiver_path = std::string(TCOIN_PROG_ACT_PATH) + std::string(receiver_username) + std::string("/") + std::string(sender_username) + random_string + std::string(".txt");
std::string temp_program_receiver_username = std::string(PROG_ACT_W_SLASH) + std::string(receiver_username) + std::string("/") + std::string(sender_username) + random_string;
//create program receiver's balance file if none exists
{
std::ifstream fin(program_receiver_path.c_str());
std::ifstream fin2(temp_program_receiver_path.c_str());
if((!fin || file_is_empty(fin)) && (!fin2))
{
fin.close();
std::ofstream fout(program_receiver_path.c_str(), std::fstream::trunc);
fout << "0\n";
fout.close();
}
else
fin.close();
fin2.close();
chmod(program_receiver_path.c_str(), (S_IRUSR | S_IWUSR) & ~S_IRWXG & ~S_IRWXO);
}
while(1)
{
if(!std::rename(program_receiver_path.c_str(), temp_program_receiver_path.c_str()))
{
//Insufficient funds check in add_file_value() itself
add_file_value(temp_program_receiver_username.c_str(), amount_to_send, base_amount);
//Value must also be added to a _total.txt file
{
random_string = std::string("rand");
std::string program_receiver_total_path = std::string(TCOIN_PROG_ACT_PATH) + std::string(receiver_username) + std::string("/_TOTAL.txt");
std::string temp_program_receiver_total_path = std::string(TCOIN_PROG_ACT_PATH) + std::string(receiver_username) + std::string("/_TOTAL") + random_string + std::string(".txt");
std::string temp_program_receiver_total_username = std::string(PROG_ACT_W_SLASH) + std::string(receiver_username) + std::string("/_TOTAL") + random_string;
//create program receiver's "total balance file" if none exists
{
std::ifstream fin(program_receiver_total_path.c_str());
std::ifstream fin2(temp_program_receiver_total_path.c_str());
if((!fin || file_is_empty(fin)) && (!fin2))
{
fin.close();
std::ofstream fout(program_receiver_total_path.c_str(), std::fstream::trunc);
fout << "0\n";
fout.close();
}
else
fin.close();
fin2.close();
chmod(program_receiver_total_path.c_str(), (S_IRUSR | S_IWUSR) & ~S_IRWXG & ~S_IRWXO);
}
while(1)
{
if(!std::rename(program_receiver_total_path.c_str(), temp_program_receiver_total_path.c_str()))
{
//Insufficient funds check in add_file_value() itself
add_file_value(temp_program_receiver_total_username.c_str(), amount_to_send, base_amount);
while(1)
{
if(!std::rename(temp_program_receiver_total_path.c_str(), program_receiver_total_path.c_str()))
break;
}
break;
}
}
}
while(1)
{
if(!std::rename(temp_program_receiver_path.c_str(), program_receiver_path.c_str()))
break;
}
break;
}
}
}
if(!strcmp(option, "verbose"))
{
std::cout << "\n";
cout_formatted_amount(amount_to_send, " tildecoins were ", " tildecoin was ");
std::cout << "sent from `" << sender_username << "` to `" << receiver_username << "`.";
std::cout << "\n\n";
}
while(1)
{
if(!std::rename(temp_receiver_path, receiver_path))
break;
}
delete[] temp_receiver_path;
delete[] receiver_path;
delete[] temp_receiver_username;
break;
}
}
}
else if(return_value == 1)
{
if(!strcmp(option, "verbose"))
{
long long int amount_of_funds = base_amount + get_file_value(temp_sender_username);
std::cout << "\nSorry, you do not have sufficient funds to execute this transaction. ";
std::cout << "Your current balance is ";
cout_formatted_amount(amount_of_funds, " tildecoins.\n\n", " tildecoin.\n\n");
}
final_return_value = ERR_INSUFFICIENT_FUNDS; //we don't simply "return 3" here because we want temp_sender_path to get renamed again
}
while(1)
{
if(!std::rename(temp_sender_path, sender_path))
break;
}
delete[] temp_sender_path;
delete[] sender_path;
delete[] temp_sender_username;
break;
}
}
while(1)
{
if(!std::rename(temp_program_sender_total_path.c_str(), program_sender_total_path.c_str()))
break;
}
break;
}
}
}
else if(return_value == 1)
{
long long int amount_owed = get_file_value(temp_program_sender_username.c_str());
long long int amount_to_aib = (long long int)(amount_to_send) - amount_owed;
std::cout << "\nSorry, you only owe `" << receiver_username << "` ";
cout_formatted_amount(amount_owed, " tildecoins", " tildecoin");
std::cout << ", not ";
cout_formatted_amount(amount_to_send, " tildecoins. ", " tildecoin. ");
std::cout << "Please run `" << PCOIN_BIN_PATH_W_SPACE << "add_internal_balance " << receiver_username << " ";
cout_formatted_amount(amount_to_aib);
std::cout << "` to sufficiently increase the amount owed to `" << receiver_username << "`.\n\n";
final_return_value = ERR_INSUFFICIENT_FUNDS; //we don't simply "return 3" here because we want temp_program_sender_path to get renamed again
}
while(1)
{
if(!std::rename(temp_program_sender_path.c_str(), program_sender_path.c_str()))
break;
}
break;
}
}
}
}
}
else
{
if(!strcmp(option, "verbose"))
std::cout << "\nSorry, no user with the username `" << receiver_username << "` was found.\n\n";
return ERR_RECEIVER_NOT_FOUND;
}
return final_return_value;
}
void help()
{
std::cout <<"\npcoin is meant for programs. After each of the following commands, you will have to input a valid key to stdin.";
std::cout << "\n`" << PCOIN_BIN_PATH_W_SPACE << "messages` or `" << PCOIN_BIN_PATH_W_SPACE << "-m`: check your messages";
std::cout << "\n`" << PCOIN_BIN_PATH_W_SPACE << "messages <num>` or `" << PCOIN_BIN_PATH_W_SPACE << "-m <num>`: print the last <num> messages";
std::cout << "\n`" << PCOIN_BIN_PATH_W_SPACE << "messages_tsv` or `" << PCOIN_BIN_PATH_W_SPACE << "-mtsv`: check your messages in tab-separated-values format";
std::cout << "\n`" << PCOIN_BIN_PATH_W_SPACE << "messages_tsv <num>` or `" << PCOIN_BIN_PATH_W_SPACE << "-mtsv <num>`: print the last <num> messages in tab-separated-values format";
std::cout << "\n`" << PCOIN_BIN_PATH_W_SPACE << "balance` or `" << PCOIN_BIN_PATH_W_SPACE << "-b`: print the number representing your balance";
std::cout << "\n`" << PCOIN_BIN_PATH_W_SPACE << "total_owed` or `" << PCOIN_BIN_PATH_W_SPACE << "-to`: print the total amount owed to others";
std::cout << "\n`" << PCOIN_BIN_PATH_W_SPACE << "internal_balance <username>` or `" << PCOIN_BIN_PATH_W_SPACE << "-ib <username>`: print the amount you owe <username>";
std::cout << "\n`" << PCOIN_BIN_PATH_W_SPACE << "add_internal_balance <username>` or `" << PCOIN_BIN_PATH_W_SPACE << "-aib <username> <amount>`: add <amount> to the amount you owe <username>";
std::cout << "\n`" << PCOIN_BIN_PATH_W_SPACE << "send <username> <amount>` or `" << PCOIN_BIN_PATH_W_SPACE << "-s <username> <amount>`: send <amount> tildecoins to <username>";
std::cout << "\n`" << PCOIN_BIN_PATH_W_SPACE << "send <username> <amount> \"<message>\"` or `" << PCOIN_BIN_PATH_W_SPACE << "-s <username> <amount> \"<message>\"`: optionally, include a message to be sent to <username>";
std::cout << "\n`" << PCOIN_BIN_PATH_W_SPACE << "silentsend <username> <amount> [\"<message>\"]`, `" << PCOIN_BIN_PATH_W_SPACE << "send -s <username> <amount> [\"<message>\"]` or `" << PCOIN_BIN_PATH_W_SPACE << "-ss <username> <amount> [\"<message>\"]`: send <amount> tildecoins to <username> with an optional (as indicated by [ and ], which should not be included in the actual comment) message included without printing anything";
std::cout << "\n`" << PCOIN_BIN_PATH_W_SPACE << "refresh_key` or `" << PCOIN_BIN_PATH_W_SPACE << "-rk`: generate a new key for your pcoin account and print it";
std::cout << "\n`" << PCOIN_BIN_PATH_W_SPACE << "name` or `" << PCOIN_BIN_PATH_W_SPACE << "-n`: print the name on the account";
std::cout << "\nIn the commands with `<username> <amount>`, switching the two arguments around (i.e., from `<username> <amount>` to `<amount> <username>`) will also work";
std::cout << "\n`" << PCOIN_BIN_PATH_W_SPACE << "--help`, `" << PCOIN_BIN_PATH_W_SPACE << "help` or `" << PCOIN_BIN_PATH_W_SPACE << "-h`: print this help text";
std::cout << "\nSend an email to " << TCOIN_PASS_RESET_CONTACT_EMAIL << " to report any errors or request a key for your program.\n\n";
}
bool is_number(const char* test_string)
{
char* p;
strtod(test_string, &p);
return *p == 0;
}
std::string get_username_from_key(std::string &key)
{
std::ifstream codefin(TCOIN_CODEZ_PATH);
char code1[513], code2[513], code3[513];
codefin >> code1;
codefin >> code2;
codefin >> code3;
codefin.close();
const static std::string all_usernames_dot_txt = exec2((std::string(TCOIN_BIN_PATH_W_SPACE) + std::string("pcoin_list")).c_str(), std::string(code3));
std::istringstream iss(all_usernames_dot_txt);
std::string word1, word2, program_name("n/a");
//first word is program username with .txt on the end, second word is key
while(iss >> word1)
{
char *program_key_path = new char[strlen(word1.c_str()) + sizeof(PCOIN_KEY_PATH_W_SLASH)]; //sizeof counts NULL char at the end too
std::strcpy(program_key_path, PCOIN_KEY_PATH_W_SLASH);
std::strcat(program_key_path, word1.c_str());
std::ifstream fin(program_key_path);
fin >> word2;
if(!strctcmp(word2.c_str(), key.c_str()))
{
fin.close();
delete[] program_key_path;
program_name = word1.substr(0, word1.size()-4); //removing .txt from the username returned
}
else
{
fin.close();
delete[] program_key_path;
}
}
return program_name;
}
long long int get_internal_balance(const char* username)
{
//sometimes, it just helps to double-check things
//this makes the security of this function decoupled
//from the 'deny access' mechanism in the "main"
//function when an incorrect key is entered
if(program_exists(get_username().c_str()) && username_exists(username))
{
std::string internal_path = std::string(TCOIN_PROG_ACT_PATH) + get_username() + std::string("/") + std::string(username) + std::string(".txt");
//create internal balance file if none exists
{
std::ifstream fin(internal_path.c_str());
if(!fin || file_is_empty(fin))
{
fin.close();
std::ofstream fout(internal_path.c_str(), std::fstream::trunc);
fout << "0\n";
fout.close();
}
else
fin.close();
chmod(internal_path.c_str(), (S_IRUSR | S_IWUSR) & ~S_IRWXG & ~S_IRWXO);
}
std::string internal_username = std::string(PROG_ACT_W_SLASH) + get_username() + std::string("/") + std::string(username);
return get_file_value(internal_username.c_str());
}
return ERR_IN_GET_INTERNAL_BALANCE;
}
long long int get_internal_total_owed()
{
if(program_exists(get_username().c_str()))
{
std::string internal_total_path = std::string(TCOIN_PROG_ACT_PATH) + get_username() + std::string("/_TOTAL.txt");
//create internal total file if none exists
{
std::ifstream fin(internal_total_path.c_str());
if(!fin || file_is_empty(fin))
{
fin.close();
std::ofstream fout(internal_total_path.c_str(), std::fstream::trunc);
fout << "0\n";
fout.close();
}
else
fin.close();
chmod(internal_total_path.c_str(), (S_IRUSR | S_IWUSR) & ~S_IRWXG & ~S_IRWXO);
}
std::string internal_total_username = std::string(PROG_ACT_W_SLASH) + get_username() + std::string("/_TOTAL");
return get_file_value(internal_total_username.c_str());
}
return ERR_IN_GET_INTERNAL_TOTAL_OWED_SELF_PROGRAM_DOESNT_EXIST;
}
int add_internal_balance(const char* username, const long long int value_to_add)
{
if(!strcmp(get_username().c_str(), username))
{
return ERR_ADD_INTERNAL_BALANCE_ADD_TO_SELF;
}
if(program_exists(get_username().c_str()) && username_exists(username))
{
std::string random_string = std::string("rand");
std::string internal_username = std::string(PROG_ACT_W_SLASH) + get_username() + std::string("/") + std::string(username);
std::string temp_internal_username = std::string(PROG_ACT_W_SLASH) + get_username() + std::string("/") + std::string(username) + random_string;
long long int internal_total_owed = get_internal_total_owed();
if(internal_total_owed == ERR_IN_GET_INTERNAL_TOTAL_OWED_SELF_PROGRAM_DOESNT_EXIST)
{
std::cerr << "\nError in add_internal_balance()! get_internal_total_owed() failed!\n\n";
return ERR_IN_ADD_INTERNAL_BALANCE_GET_INTERNAL_TOTAL_OWED_FAILED;
}
if((value_to_add > 0) && (value_to_add > (base_amount + user_amount - internal_total_owed)))
{
return ERR_ADD_INTERNAL_BALANCE_VALUE_TO_ADD_UNFULFILLABLE_USING_OWN_CURRENT_FUNDS; //value_to_add is more than what the program can fulfil using its own current funds
}
std::string internal_path = std::string(TCOIN_PROG_ACT_PATH) + get_username() + std::string("/") + std::string(username) + std::string(".txt");
std::string temp_internal_path = std::string(TCOIN_PROG_ACT_PATH) + get_username() + std::string("/") + std::string(username) + random_string + std::string(".txt");
//create internal file if none exists
{
std::ifstream fin(internal_path.c_str());
std::ifstream fin2(temp_internal_path.c_str());
if((!fin || file_is_empty(fin)) && (!fin2))
{
fin.close();
std::ofstream fout(internal_path.c_str(), std::fstream::trunc);
fout << "0\n";
fout.close();
}
else
fin.close();
fin2.close();
chmod(internal_path.c_str(), (S_IRUSR | S_IWUSR) & ~S_IRWXG & ~S_IRWXO);
}
int return_value;
int final_return_value = 0;
while(1)
{
if(!std::rename(internal_path.c_str(), temp_internal_path.c_str()))
{
return_value = add_file_value(temp_internal_username.c_str(), value_to_add, 0); //cannot make user's internal balance negative, so base_amount is 0
if(return_value) //if return value is non-zero
{
final_return_value = return_value; //we don't simply "return return_value" because we want files to get renamed back to their original filenames
}
else //return value is zero, i.e., add_file_value succeeded
//also need to update _total.txt
{
random_string = std::string("rand");
std::string internal_total_username = std::string(PROG_ACT_W_SLASH) + get_username() + std::string("/_TOTAL");
std::string temp_internal_total_username = std::string(PROG_ACT_W_SLASH) + get_username() + std::string("/_TOTAL") + random_string;
std::string internal_total_path = std::string(TCOIN_PROG_ACT_PATH) + get_username() + std::string("/_TOTAL.txt");
std::string temp_internal_total_path = std::string(TCOIN_PROG_ACT_PATH) + get_username() + std::string("/_TOTAL") + random_string + std::string(".txt");
//create _total.txt file if none exists
{
std::ifstream fin(internal_total_path.c_str());
std::ifstream fin2(temp_internal_total_path.c_str());
if((!fin || file_is_empty(fin)) && (!fin2))
{
fin.close();
std::ofstream fout(internal_total_path.c_str(), std::fstream::trunc);
fout << "0\n";
fout.close();
}
else
fin.close();
fin2.close();
chmod(internal_total_path.c_str(), (S_IRUSR | S_IWUSR) & ~S_IRWXG & ~S_IRWXO);
}
while(1)
{
if(!std::rename(internal_total_path.c_str(), temp_internal_total_path.c_str()))
{
return_value = add_file_value(temp_internal_total_username.c_str(), value_to_add, 0);
while(1)
{
if(!std::rename(temp_internal_total_path.c_str(), internal_total_path.c_str()))
break;
}
break;
}
}
if(return_value) //if return value is non-zero
final_return_value = return_value; //we don't simply "return return_value" because we want files to get renamed back to their original filenames
}
while(1)
{
if(!std::rename(temp_internal_path.c_str(), internal_path.c_str()))
break;
}
break;
}
}
return final_return_value;
}
return ERR_ADD_INTERNAL_BALANCE_USERNAME_DOESNT_EXIST;
}
bool message_is_long(const char* test_string)
{
for(int i=0; i < TCOIN_MSG_LENGTH_LIMIT+1; ++i)
if(test_string[i] == '\0')
{
return false; //message is shorter than TCOIN_MSG_LENGTH_LIMIT characters
}
return true; //message is longer than TCOIN_MSG_LENGTH_LIMIT characters
}
int main(int argc, char *argv[])
{
if(argc > 1 && (!strcmp(argv[1], "--help") || !strcmp(argv[1], "help") || !strcmp(argv[1], "-h")))
{
help();
return 0;
}
{
std::string key;
std::string program_username;
std::getline(std::cin, key);
if(!key.compare(""))
{
std::cout << "\nSorry, you incorrectly specified an empty key.\n\n";
return ERR_KEY_EMPTY;
}
program_username.assign(get_username_from_key(key));
if(!program_username.compare("n/a"))
{
std::cout << "\nSorry, the key you specified is not in use.\n\n";
return ERR_KEY_NOT_IN_USE;
}
set_username(program_username);
}
base_amount = 0;
long long int unaltered_base_amount = base_amount;
user_amount = 0;
krowbar_amount[0] = krowbar_amount[1] = 0;
minercoin_amount[0] = minercoin_amount[1] = 0;
#ifndef KROWBAR_OFF
//adding tildebot scores from krowbar to base amount
{
std::string line;
const std::string username = get_username();
const int username_length = username.length();
std::string score_file_path;
for(int j=0; j<2; ++j)
{
if(j == 0)
score_file_path.assign(KROWBAR_SCORE_PATH);
else if(j == 1)
score_file_path.assign(JU_SCORE_PATH);
std::ifstream fin(score_file_path);
while(std::getline(fin, line))
{
char* line_c_string = new char[line.length()+1];
std::strcpy(line_c_string, line.c_str());
const int irc_username_length = username_length > USERNAME_LENGTH_LIMIT ? USERNAME_LENGTH_LIMIT : username_length;
if(!strncasecmp(username.c_str(), line_c_string, irc_username_length)) //username starts with capital letter, but name in database does not
{
char number_of_tildes[21];
number_of_tildes[0] = '0'; //just in case the loop below doesn't detect any digits
number_of_tildes[1] = '\0';
for(int i=0; i < 20; ++i)
{
if(std::isdigit(line_c_string[irc_username_length+3+i])
|| line_c_string[irc_username_length+3+i] == '-'
|| line_c_string[irc_username_length+3+i] == '.')
number_of_tildes[i] = line_c_string[irc_username_length+3+i];
else
{
number_of_tildes[i] = '\0'; //manually terminating the string
break;
}
}
number_of_tildes[20] = '\0'; //incase the number overflows 20 characters
krowbar_amount[j] += strtol100(number_of_tildes);
base_amount += krowbar_amount[j];
//multiplied by 100 inside strtol100() to convert tildecoins to centitildecoins, which
//is the unit used throughout the program (and converted appropriately when displayed)
}
delete[] line_c_string;
}
}
}
#endif
#if DEBUG
std::string debug_string("");
#endif
#ifndef MINERCOIN_OFF
{
std::string command_to_exec, minercoin_cmd_pre_username, number_of_tildes, username(get_username());
username.at(0) = username.at(0)+'a'-'A';
const std::string minercoin_cmd_post_username(MINERCOIN_CMD_POST_USERNAME), lowercase_username(username);
//adding minercoin scores from minerobber to base amount (from "~username" and "username", both, in minerbot)
#if DEBUG
debug_string += lowercase_username;
#endif
for(int i=0; i<2; ++i)
{
if(i == 0)
minercoin_cmd_pre_username.assign(MINERCOIN_CMD_PRE_USERNAME);
else if(i == 1)
minercoin_cmd_pre_username.assign(MINERCOIN_CMD_PRE_USERNAME2);
command_to_exec = minercoin_cmd_pre_username + lowercase_username + minercoin_cmd_post_username;
number_of_tildes = exec(command_to_exec.c_str());
number_of_tildes.pop_back();
//to get rid of the newline at the end
if(is_number(number_of_tildes.c_str()))
{
minercoin_amount[i] += strtol100(number_of_tildes.c_str());
base_amount += minercoin_amount[i];
}
//multiplied by 100 to convert tildecoins to centitildecoins, which
//is the unit used throughout the program (and converted appropriately when displayed)
}
}
#endif
user_amount = get_file_value(get_username().c_str());
srand((long int)(std::time(NULL)) + strtol_fast(exec(BIN_ECHO_CMD).c_str()));
long long int total_amount = base_amount + user_amount;
if(argc < 2)
{
std::cout << "\nSorry, `" << PCOIN_BIN_PATH << "` doesn't work. Please use `" << PCOIN_BIN_PATH_W_SPACE << "-m` for messages or `" << PCOIN_BIN_PATH_W_SPACE << "-b` to check your balance. `" << PCOIN_BIN_PATH_W_SPACE << "--help` prints the help text.\n\n";
return ERR_NO_ARGS;
}
else if(!strcmp(argv[1], "breakdown") || !strcmp(argv[1], "-bd"))
{
std::cout << "total,";
cout_formatted_amount(total_amount, ";", ";");
show_breakdown(unaltered_base_amount, "baseamount", user_amount, "transfers", krowbar_amount[0], "tildegame", krowbar_amount[1], "jugame", minercoin_amount[0]+minercoin_amount[1], "minercoingame");
}
#if DEBUG
else if(!strcmp(argv[1], "debug_string"))
{
std::cout << debug_string;
}
#endif
else if(!strcmp(argv[1], "messages") || !strcmp(argv[1], "-m"))
{
double number_of_messages = 0.0;
bool number_of_messages_is_specified = argc > 2 && is_number(argv[2]); //number of messages specified
if(number_of_messages_is_specified)
number_of_messages = std::strtod(argv[2], NULL);
if(number_of_messages >= 1.0) //number of messages specified is a valid number
show_messages_tail(get_username().c_str(), (long long int)(number_of_messages));
else //show all messages
show_messages(get_username().c_str());
}
else if(!strcmp(argv[1], "messages_tsv") || !strcmp(argv[1], "-mtsv"))
{
double number_of_messages = 0.0;
bool number_of_messages_is_specified = argc > 2 && is_number(argv[2]); //number of messages specified
if(number_of_messages_is_specified)
number_of_messages = std::strtod(argv[2], NULL);
if(number_of_messages >= 1.0) //number of messages specified is a valid number
show_tsv_messages_tail(get_username().c_str(), (long long int)(number_of_messages));
else //show all messages
show_tsv_messages(get_username().c_str());
}
else if(!strcmp(argv[1], "balance") || !strcmp(argv[1], "-b"))
cout_formatted_amount(total_amount, "\n");
else if(!strcmp(argv[1], "total_owed") || !strcmp(argv[1], "-to"))
{
long long int total_owed = get_internal_total_owed();
if(total_owed == ERR_IN_GET_INTERNAL_TOTAL_OWED_SELF_PROGRAM_DOESNT_EXIST)
{
std::cerr << "\nError in main()! get_internal_total_owed() failed!\n\n";
return ERR_IN_MAIN_GET_INTERNAL_TOTAL_OWED_FAILED;
}
cout_formatted_amount(total_owed, "\n");
}
else if(!strcmp(argv[1], "internal_balance") || !strcmp(argv[1], "-ib"))
{
if(argc == 3) //second argument (the one right after "-ib") is the username
{
long long int internal_balance = get_internal_balance(argv[2]);
if(internal_balance == ERR_IN_GET_INTERNAL_BALANCE) //username check doesn't pass
{
std::cout << "\nSorry, no user with the username `" << argv[2] << "` was found.\n\n";
return ERR_INTERNAL_BALANCE_USERNAME_NOT_FOUND;
}
cout_formatted_amount(internal_balance, "\n");
}
else if(argc == 2) //no username supplied (too few arguments supplied)
{
std::cout << "\nSorry, too few command-line arguments were passed. The correct format is `" << PCOIN_BIN_PATH_W_SPACE << "internal_balance <username>`.\n\n";
return ERR_INTERNAL_BALANCE_NO_USERNAME_SUPPLIED;
}
else if(argc > 3) //too many arguments supplied
{
std::cout << "\nSorry, too many command-line arguments were passed. The correct format is `" << PCOIN_BIN_PATH_W_SPACE << "internal_balance <username>`.\n\n";
return ERR_INTERNAL_BALANCE_TOO_MANY_ARGS;
}
}
else if(!strcmp(argv[1], "add_internal_balance") || !strcmp(argv[1], "-aib"))
{
if(argc < 4)
{
std::cout << "\nSorry, too few command-line arguments were passed. The correct format is `" << PCOIN_BIN_PATH_W_SPACE << "add_internal_balance <username> <amount>`.\n\n";
return ERR_ADD_INTERNAL_BALANCE_TOO_FEW_ARGS;
}
else if(argc > 4)
{
std::cout << "\nSorry, too many command-line arguments were passed. The correct format is `" << PCOIN_BIN_PATH_W_SPACE << "add_internal_balance <username> <amount>`.\n\n";
return ERR_ADD_INTERNAL_BALANCE_TOO_MANY_ARGS;
}
// number of arguments is exactly 3
{
int return_value = ERR_IN_ADD_INTERNAL_BALANCE_GET_INTERNAL_TOTAL_OWED_FAILED, return_value2 = ERR_IN_ADD_INTERNAL_BALANCE_GET_INTERNAL_TOTAL_OWED_FAILED;
if(is_number(argv[3]))
return_value = add_internal_balance(argv[2], strtol100(argv[3]));
else
return_value2 = add_internal_balance(argv[3], strtol100(argv[2]));
if(return_value == ERR_ADD_INTERNAL_BALANCE_ADD_TO_SELF || return_value2 == ERR_ADD_INTERNAL_BALANCE_ADD_TO_SELF) //cannot add to self internal balance
{
std::cout << "\nSorry, you cannot add to your own internal balance.\n\n";
return ERR_ADD_INTERNAL_BALANCE_ADD_TO_SELF;
}
if(return_value == ERR_ADD_INTERNAL_BALANCE_VALUE_TO_ADD_UNFULFILLABLE_USING_OWN_CURRENT_FUNDS || return_value2 == ERR_ADD_INTERNAL_BALANCE_VALUE_TO_ADD_UNFULFILLABLE_USING_OWN_CURRENT_FUNDS) //value_to_add was too large
{
std::cout << "\nSorry, the amount was larger than what the program's current unowed balance could cover.\n\n";
return ERR_IN_MAIN_ADD_INTERNAL_BALANCE_AMOUNT_LARGER_THAN_COVERABLE_BY_UNOWED_BALANCE;
}
if(return_value == ERR_ADD_FILE_VALUE_INSUFFICIENT_FUNDS) //value_to_add was too negative
{
std::cout << "\nSorry, the amount was more negative than what `" << argv[2] << "` could cover.\n\n";
return ERR_IN_MAIN_ADD_INTERNAL_BALANCE_AMOUNT_MAKING_USER_INTERNAL_BALANCE_NEGATIVE;
}
if(return_value2 == ERR_ADD_FILE_VALUE_INSUFFICIENT_FUNDS) //value_to_add was too negative
{
std::cout << "\nSorry, the amount was more negative than what `" << argv[3] << "` could cover.\n\n";
return ERR_IN_MAIN_ADD_INTERNAL_BALANCE_AMOUNT_MAKING_USER_INTERNAL_BALANCE_NEGATIVE;
}
if(return_value == ERR_ADD_INTERNAL_BALANCE_USERNAME_DOESNT_EXIST) //username check doesn't pass
{
std::cout << "\nSorry, no user with the username `" << argv[2] << "` was found.\n\n";
return ERR_IN_MAIN_ADD_INTERNAL_BALANCE_NO_SUCH_USERNAME_FOUND;
}
if(return_value2 == ERR_ADD_INTERNAL_BALANCE_USERNAME_DOESNT_EXIST) //username check doesn't pass
{
std::cout << "\nSorry, no user with the username `" << argv[3] << "` was found.\n\n";
return ERR_IN_MAIN_ADD_INTERNAL_BALANCE_NO_SUCH_USERNAME_FOUND;
}
}
}
else if(!strcmp(argv[1], "send") || !strcmp(argv[1], "-s"))
{
if(argc == 5)
{
if(!strcmp(argv[2], "-s"))
{
int return_value;
long long int amount = 0;
char *receiver = NULL;
if(is_number(argv[3]))
{
amount = strtol100(argv[3]);
receiver = argv[4];
}
else
{
amount = strtol100(argv[4]);
receiver = argv[3];
}
return_value = send(get_username().c_str(), receiver, amount, base_amount, "silent");
if(!return_value) //send was successful
send_message(get_username().c_str(), receiver, "", amount, "silent");
}
else //argument count is 5 because a custom message was included
{
int return_value;
long long int amount = 0;
char* receiver = NULL;
return_value = message_is_long(argv[4]);
if(return_value) //message is too long
{
std::cout << "\nSorry, the message was longer than " << TCOIN_MSG_LENGTH_LIMIT << " characters. Please keep messages at or below this limit.\n\n";
return ERR_MAIN_MSG_TOO_LONG;
}
if(is_number(argv[2]))
{
amount = strtol100(argv[2]);
receiver = argv[3];
}
else
{
amount = strtol100(argv[3]);
receiver = argv[2];
}
return_value = send(get_username().c_str(), receiver, amount, base_amount, "verbose");
if(!return_value) //send was successful
send_message(get_username().c_str(), receiver, argv[4], amount, "verbose");
}
}
else if(argc == 6)
{
if(!strcmp(argv[2], "-s"))
{ //argument count is 6 because of silent send with custom message included
int return_value;
long long int amount = 0;
char *receiver = NULL;
return_value = message_is_long(argv[5]);
if(return_value) //message is too long
{
std::cout << "\nSorry, the message was longer than " << TCOIN_MSG_LENGTH_LIMIT << " characters. Please keep messages at or below this limit.\n\n";
return ERR_MAIN_MSG_TOO_LONG;
}
if(is_number(argv[3]))
{
amount = strtol100(argv[3]);
receiver = argv[4];
}
else
{
amount = strtol100(argv[4]);
receiver = argv[3];
}
return_value = send(get_username().c_str(), receiver, amount, base_amount, "silent");
if(!return_value) //send was successful
send_message(get_username().c_str(), receiver, argv[5], amount, "silent");
}
else
{
//too many command-line arguments were passed (6 args) (probably a message was intended)
std::cout << "\nSorry, too many command-line arguments were passed. The correct format is `tcoin send <username> <amount> \"<message>\"`.\n\n";
return ERR_MAIN_SEND_TOO_MANY_ARGS_MSG;
}
}
else if(argc < 4)
{
std::cout << "\nSorry, too few command-line arguments were passed. The correct format is `" << PCOIN_BIN_PATH_W_SPACE << "send <username> <amount>`.\n\n";
return ERR_MAIN_SEND_TOO_FEW_ARGS;
}
else if(argc > 4)
{
std::cout << "\nSorry, too many command-line arguments were passed. The correct format is `" << PCOIN_BIN_PATH_W_SPACE << "send <username> <amount>`.\n\n";
return ERR_MAIN_SEND_TOO_MANY_ARGS;
}
else
{
int return_value;
long long int amount = 0;
char* receiver = NULL;
if(is_number(argv[2]))
{
amount = strtol100(argv[2]);
receiver = argv[3];
}
else
{
amount = strtol100(argv[3]);
receiver = argv[2];
}
return_value = send(get_username().c_str(), receiver, amount, base_amount, "verbose");
if(!return_value) //send was successful
send_message(get_username().c_str(), receiver, "", amount, "verbose");
}
}
else if(!strcmp(argv[1], "silentsend") || !strcmp(argv[1], "-ss"))
{
if(argc==4)
{
int return_value;
long long int amount = 0;
char* receiver = NULL;
if(is_number(argv[2]))
{
amount = strtol100(argv[2]);
receiver = argv[3];
}
else
{
amount = strtol100(argv[3]);
receiver = argv[2];
}
return_value = send(get_username().c_str(), receiver, amount, base_amount, "silent");
if(!return_value) //send was successful
send_message(get_username().c_str(), receiver, "", amount, "silent");
}
if(argc==5) //custom message included
{
int return_value;
long long int amount = 0;
char* receiver = NULL;
return_value = message_is_long(argv[4]);
if(return_value) //message is too long
{
std::cout << "\nSorry, the message was longer than " << TCOIN_MSG_LENGTH_LIMIT << " characters. Please keep messages at or below this limit.\n\n";
return ERR_MAIN_MSG_TOO_LONG;
}
if(is_number(argv[2]))
{
amount = strtol100(argv[2]);
receiver = argv[3];
}
else
{
amount = strtol100(argv[3]);
receiver = argv[2];
}
return_value = send(get_username().c_str(), receiver, amount, base_amount, "silent");
if(!return_value) //send was successful
send_message(get_username().c_str(), receiver, argv[4], amount, "silent");
}
else
return ERR_SILENTSEND;
}
else if(!strcmp(argv[1], "refresh_key") || !strcmp(argv[1], "-rk"))
{
std::string new_key;
new_key.assign(refresh_pcoin_key());
if(!new_key.compare("n/a") || new_key.length() != 64)
{
std::cout << "\nSorry, key was not refreshed.\n\n"; //make sure this is less than 64 characters
return ERR_PCOIN_KEY_REFRESH_FAILED;
}
else
std::cout << new_key << "\n";
}
else if(!strcmp(argv[1], "name") || !strcmp(argv[1], "-n"))
{
std::cout << get_username() << "\n";
}
else
{
std::cout << "\nSorry, an unknown command-line argument was received. `" << PCOIN_BIN_PATH_W_SPACE << "help` will print the help text.\n\n";
return ERR_UNKNOWN_ARG;
}
return 0;
}
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