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toxic/prompt.c
irungentoo 43d0d7a1c0 astyle --options=tools/astylerc -r ./*.{c,h}
2013-08-20 19:37:05 -04:00

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/*
* Toxic -- Tox Curses Client
*/
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include <curses.h>
#include "../../core/Messenger.h"
#include "../../core/network.h"
#include "windows.h"
#include "prompt.h"
extern char *DATA_FILE;
extern int store_data(Messenger *m, char *path);
uint8_t pending_requests[MAX_STR_SIZE][CLIENT_ID_SIZE]; // XXX
uint8_t num_requests = 0; // XXX
static char prompt_buf[MAX_STR_SIZE] = {0};
static int prompt_buf_pos = 0;
/* commands */
void cmd_accept(ToxWindow *, Messenger *m, char **);
void cmd_add(ToxWindow *, Messenger *m, char **);
void cmd_clear(ToxWindow *, Messenger *m, char **);
void cmd_connect(ToxWindow *, Messenger *m, char **);
void cmd_help(ToxWindow *, Messenger *m, char **);
void cmd_msg(ToxWindow *, Messenger *m, char **);
void cmd_myid(ToxWindow *, Messenger *m, char **);
void cmd_nick(ToxWindow *, Messenger *m, char **);
void cmd_mynick(ToxWindow *, Messenger *m, char **);
void cmd_quit(ToxWindow *, Messenger *m, char **);
void cmd_status(ToxWindow *, Messenger *m, char **);
void cmd_statusmsg(ToxWindow *, Messenger *m, char **);
#define NUM_COMMANDS 14
static struct {
char *name;
int numargs;
void (*func)(ToxWindow *, Messenger *m, char **);
} commands[] = {
{ "accept", 1, cmd_accept },
{ "add", 1, cmd_add },
{ "clear", 0, cmd_clear },
{ "connect", 3, cmd_connect },
{ "exit", 0, cmd_quit },
{ "help", 0, cmd_help },
{ "msg", 2, cmd_msg },
{ "myid", 0, cmd_myid },
{ "nick", 1, cmd_nick },
{ "mynick", 0, cmd_mynick },
{ "q", 0, cmd_quit },
{ "quit", 0, cmd_quit },
{ "status", 2, cmd_status },
{ "statusmsg", 1, cmd_statusmsg },
};
// XXX:
int add_req(uint8_t *public_key)
{
memcpy(pending_requests[num_requests], public_key, CLIENT_ID_SIZE);
++num_requests;
return num_requests - 1;
}
// XXX: FIX
unsigned char *hex_string_to_bin(char hex_string[])
{
size_t len = strlen(hex_string);
unsigned char *val = malloc(len);
char *pos = hex_string;
int i;
for (i = 0; i < len; ++i, pos += 2)
sscanf(pos, "%2hhx", &val[i]);
return val;
}
void cmd_accept(ToxWindow *self, Messenger *m, char **args)
{
int num = atoi(args[1]);
if (num >= num_requests) {
wprintw(self->window, "Invalid syntax.\n");
return;
}
num = m_addfriend_norequest(m, pending_requests[num]);
if (num == -1)
wprintw(self->window, "Failed to add friend.\n");
else {
wprintw(self->window, "Friend accepted as: %d.\n", num);
on_friendadded(m, num);
}
}
void cmd_add(ToxWindow *self, Messenger *m, char **args)
{
uint8_t id_bin[FRIEND_ADDRESS_SIZE];
char xx[3];
uint32_t x;
char *id = args[1];
char *msg = args[2];
if (!id) {
wprintw(self->window, "Invalid command: add expected at least one argument.\n");
return;
}
if (!msg)
msg = "";
if (strlen(id) != 2 * FRIEND_ADDRESS_SIZE) {
wprintw(self->window, "Invalid ID length.\n");
return;
}
int i;
for (i = 0; i < FRIEND_ADDRESS_SIZE; ++i) {
xx[0] = id[2 * i];
xx[1] = id[2 * i + 1];
xx[2] = '\0';
if (sscanf(xx, "%02x", &x) != 1) {
wprintw(self->window, "Invalid ID.\n");
return;
}
id_bin[i] = x;
}
for (i = 0; i < FRIEND_ADDRESS_SIZE; i++) {
id[i] = toupper(id[i]);
}
int num = m_addfriend(m, id_bin, (uint8_t *) msg, strlen(msg) + 1);
switch (num) {
case FAERR_TOOLONG:
wprintw(self->window, "Message is too long.\n");
break;
case FAERR_NOMESSAGE:
wprintw(self->window, "Please add a message to your request.\n");
break;
case FAERR_OWNKEY:
wprintw(self->window, "That appears to be your own ID.\n");
break;
case FAERR_ALREADYSENT:
wprintw(self->window, "Friend request already sent.\n");
break;
case FAERR_UNKNOWN:
wprintw(self->window, "Undefined error when adding friend.\n");
break;
case FAERR_BADCHECKSUM:
wprintw(self->window, "Bad checksum in address.\n");
break;
case FAERR_SETNEWNOSPAM:
wprintw(self->window, "Nospam was different.\n");
break;
default:
wprintw(self->window, "Friend added as %d.\n", num);
on_friendadded(m, num);
break;
}
}
void cmd_clear(ToxWindow *self, Messenger *m, char **args)
{
wclear(self->window);
}
void cmd_connect(ToxWindow *self, Messenger *m, char **args)
{
IP_Port dht;
char *ip = args[1];
char *port = args[2];
char *key = args[3];
if (atoi(port) == 0) {
wprintw(self->window, "Invalid syntax.\n");
return;
}
dht.port = htons(atoi(port));
uint32_t resolved_address = resolve_addr(ip);
if (resolved_address == 0) {
return;
}
dht.ip.i = resolved_address;
unsigned char *binary_string = hex_string_to_bin(key);
DHT_bootstrap(m->dht, dht, binary_string);
free(binary_string);
}
void cmd_quit(ToxWindow *self, Messenger *m, char **args)
{
endwin();
exit(0);
}
void cmd_help(ToxWindow *self, Messenger *m, char **args)
{
wclear(self->window);
wattron(self->window, COLOR_PAIR(2) | A_BOLD);
wprintw(self->window, "Commands:\n");
wattroff(self->window, A_BOLD);
wprintw(self->window, " connect <ip> <port> <key> : Connect to DHT server\n");
wprintw(self->window, " add <id> <message> : Add friend\n");
wprintw(self->window, " status <type> <message> : Set your status\n");
wprintw(self->window, " statusmsg <message> : Set your status\n");
wprintw(self->window, " nick <nickname> : Set your nickname\n");
wprintw(self->window, " mynick : Print your current nickname\n");
wprintw(self->window, " accept <number> : Accept friend request\n");
wprintw(self->window, " myid : Print your ID\n");
wprintw(self->window, " quit/exit : Exit program\n");
wprintw(self->window, " help : Print this message again\n");
wprintw(self->window, " clear : Clear this window\n");
wattron(self->window, A_BOLD);
wprintw(self->window, "TIP: Use the TAB key to navigate through the tabs.\n\n");
wattroff(self->window, A_BOLD);
wattroff(self->window, COLOR_PAIR(2));
}
void cmd_msg(ToxWindow *self, Messenger *m, char **args)
{
char *id = args[1];
char *msg = args[2];
if (m_sendmessage(m, atoi(id), (uint8_t *) msg, strlen(msg) + 1) == 0)
wprintw(self->window, "Error occurred while sending message.\n");
else
wprintw(self->window, "Message successfully sent.\n");
}
void cmd_myid(ToxWindow *self, Messenger *m, char **args)
{
char id[FRIEND_ADDRESS_SIZE * 2 + 1] = {0};
size_t i;
uint8_t address[FRIEND_ADDRESS_SIZE];
getaddress(m, address);
for (i = 0; i < FRIEND_ADDRESS_SIZE; ++i) {
char xx[3];
snprintf(xx, sizeof(xx), "%02X", address[i] & 0xff);
strcat(id, xx);
}
wprintw(self->window, "%s\n", id);
}
void cmd_nick(ToxWindow *self, Messenger *m, char **args)
{
char *nick = args[1];
setname(m, (uint8_t *) nick, strlen(nick) + 1);
wprintw(self->window, "Nickname set to: %s\n", nick);
if (store_data(m, DATA_FILE)) {
wprintw(self->window, "\nCould not store Messenger data\n");
}
}
void cmd_mynick(ToxWindow *self, Messenger *m, char **args)
{
uint8_t *nick = malloc(m->name_length);
getself_name(m, nick, m->name_length);
wprintw(self->window, "Current nickname: %s\n", nick);
free(nick);
}
void cmd_status(ToxWindow *self, Messenger *m, char **args)
{
char *status = args[1];
char *status_text;
USERSTATUS status_kind;
if (!strncmp(status, "online", strlen("online"))) {
status_kind = USERSTATUS_NONE;
status_text = "ONLINE";
} else if (!strncmp(status, "away", strlen("away"))) {
status_kind = USERSTATUS_AWAY;
status_text = "AWAY";
} else if (!strncmp(status, "busy", strlen("busy"))) {
status_kind = USERSTATUS_BUSY;
status_text = "BUSY";
} else {
wprintw(self->window, "Invalid status.\n");
return;
}
char *msg = args[2];
if (msg == NULL) {
m_set_userstatus(m, status_kind);
wprintw(self->window, "Status set to: %s\n", status_text);
} else {
m_set_userstatus(m, status_kind);
m_set_statusmessage(m, (uint8_t *) msg, strlen(msg) + 1);
wprintw(self->window, "Status set to: %s, %s\n", status_text, msg);
}
}
void cmd_statusmsg(ToxWindow *self, Messenger *m, char **args)
{
char *msg = args[1];
m_set_statusmessage(m, (uint8_t *) msg, strlen(msg) + 1);
wprintw(self->window, "Status set to: %s\n", msg);
}
static void execute(ToxWindow *self, Messenger *m, char *u_cmd)
{
int newlines = 0;
char cmd[MAX_STR_SIZE] = {0};
int i;
for (i = 0; i < strlen(prompt_buf); ++i) {
if (u_cmd[i] == '\n')
++newlines;
else
cmd[i - newlines] = u_cmd[i];
}
int leading_spc = 0;
for (i = 0; i < MAX_STR_SIZE && isspace(cmd[i]); ++i)
leading_spc++;
memmove(cmd, cmd + leading_spc, MAX_STR_SIZE - leading_spc);
int cmd_end = strlen(cmd);
while (cmd_end > 0 && cmd_end--)
if (!isspace(cmd[cmd_end]))
break;
cmd[cmd_end + 1] = '\0';
/* insert \0 at argument boundaries */
int numargs = 0;
for (i = 0; i < MAX_STR_SIZE; i++) {
if (cmd[i] == '\"')
while (cmd[++i] != '\"'); /* skip over strings */
if (cmd[i] == ' ') {
cmd[i] = '\0';
int j = i;
while (++j < MAX_STR_SIZE && isspace(cmd[j]));
i = j - 1;
numargs++;
}
}
/* excessive arguments */
if (numargs > 3) {
wprintw(self->window, "Invalid command: too many arguments.\n");
return;
}
/* read arguments into array */
char *cmdargs[5];
int pos = 0;
for (i = 0; i < 5; i++) {
cmdargs[i] = cmd + pos;
pos += strlen(cmdargs[i]) + 1;
while (isspace(cmd[pos]) && pos < MAX_STR_SIZE)
++pos;
}
/* no input */
if (strlen(cmdargs[0]) == 0)
return;
/* match input to command list */
for (i = 0; i < NUM_COMMANDS; i++) {
if (!strcmp(cmdargs[0], commands[i].name)) {
/* check for missing arguments */
int j;
for (j = 0; j <= commands[i].numargs; j++) {
if (strlen(cmdargs[j]) == 0) {
wprintw(self->window, "Invalid command: %s expected %d arguments, got %d.\n",
commands[i].name, commands[i].numargs, j - 1);
return;
}
}
/* check for excess arguments */
if (strcmp(cmdargs[0], "add") && strlen(cmdargs[j]) != 0) {
wprintw(self->window, "Invalid command: too many arguments to %s.\n", commands[i].name);
return;
}
/* pass arguments to command function */
(commands[i].func)(self, m, cmdargs);
return;
}
}
/* no match */
wprintw(self->window, "Invalid command.\n");
}
static void prompt_onKey(ToxWindow *self, Messenger *m, int key)
{
/* Add printable characters to line */
if (isprint(key)) {
if (prompt_buf_pos == (sizeof(prompt_buf) - 1)) {
wprintw(self->window, "\nToo Long.\n");
prompt_buf_pos = 0;
prompt_buf[0] = 0;
} else if (!(prompt_buf_pos == 0) && (prompt_buf_pos < COLS)
&& (prompt_buf_pos % (COLS - 3) == 0)) {
prompt_buf[prompt_buf_pos++] = '\n';
} else if (!(prompt_buf_pos == 0) && (prompt_buf_pos > COLS)
&& ((prompt_buf_pos - (COLS - 3)) % (COLS) == 0)) {
prompt_buf[prompt_buf_pos++] = '\n';
}
prompt_buf[prompt_buf_pos++] = key;
prompt_buf[prompt_buf_pos] = 0;
}
/* RETURN key: execute command */
else if (key == '\n') {
wprintw(self->window, "\n");
execute(self, m, prompt_buf);
prompt_buf_pos = 0;
prompt_buf[0] = 0;
}
/* BACKSPACE key: Remove one character from line */
else if (key == 0x107 || key == 0x8 || key == 0x7f) {
if (prompt_buf_pos != 0) {
prompt_buf[--prompt_buf_pos] = 0;
}
}
}
static void prompt_onDraw(ToxWindow *self, Messenger *m)
{
curs_set(1);
int x, y;
getyx(self->window, y, x);
(void) x;
int i;
for (i = 0; i < (strlen(prompt_buf)); ++i) {
if ((prompt_buf[i] == '\n') && (y != 0))
--y;
}
wattron(self->window, COLOR_PAIR(1));
mvwprintw(self->window, y, 0, "# ");
wattroff(self->window, COLOR_PAIR(1));
mvwprintw(self->window, y, 2, "%s", prompt_buf);
wclrtoeol(self->window);
wrefresh(self->window);
}
static void prompt_onInit(ToxWindow *self, Messenger *m)
{
scrollok(self->window, 1);
cmd_help(self, m, NULL);
wclrtoeol(self->window);
}
ToxWindow new_prompt()
{
ToxWindow ret;
memset(&ret, 0, sizeof(ret));
ret.onKey = &prompt_onKey;
ret.onDraw = &prompt_onDraw;
ret.onInit = &prompt_onInit;
strcpy(ret.title, "[prompt]");
return ret;
}
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