+++ /dev/null
-/*
- * This file contains functions which implement parts of the
- * text-mode user interface.
- *
- * Copyright (c) 1987-2017 by the citadel.org team
- *
- * This program is open source software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 3.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- */
-
-#include "sysdep.h"
-#include <stdlib.h>
-#include <unistd.h>
-#include <stdio.h>
-#include <fcntl.h>
-#include <ctype.h>
-#include <string.h>
-#include <sys/types.h>
-
-#if TIME_WITH_SYS_TIME
-# include <sys/time.h>
-# include <time.h>
-#else
-# if HAVE_SYS_TIME_H
-# include <sys/time.h>
-# else
-# include <time.h>
-# endif
-#endif
-
-#ifdef HAVE_TERMIOS_H
-#include <termios.h>
-#else
-#include <sgtty.h>
-#endif
-
-#ifdef HAVE_SYS_SELECT_H
-#include <sys/select.h>
-#endif
-
-#ifdef THREADED_CLIENT
-#include <pthread.h>
-#endif
-
-#include <signal.h>
-#include <errno.h>
-#include <stdarg.h>
-#include <libcitadel.h>
-#include "citadel_ipc.h"
-#include "commands.h"
-#include "messages.h"
-#include "citadel_decls.h"
-#include "routines.h"
-#include "routines2.h"
-#include "rooms.h"
-#include "client_chat.h"
-#include "help.h"
-#include "tuiconfig.h"
-#include "screen.h"
-#include "ecrash.h"
-
-struct citcmd {
- struct citcmd *next;
- int c_cmdnum;
- int c_axlevel;
- char c_keys[5][64];
-};
-
-#define IFNEXPERT if ((userflags&US_EXPERT)==0)
-
-
-int rc_exp_beep;
-char rc_exp_cmd[1024];
-int rc_allow_attachments;
-int rc_display_message_numbers;
-int rc_force_mail_prompts;
-int rc_remember_passwords;
-int rc_ansi_color;
-int rc_color_use_bg;
-int rc_prompt_control = 0;
-time_t rc_idle_threshold = (time_t)900;
-char rc_url_cmd[SIZ];
-char rc_open_cmd[SIZ];
-char rc_gotmail_cmd[SIZ];
-
-int next_lazy_cmd = 5;
-
-extern int screenwidth, screenheight;
-extern int termn8;
-extern CtdlIPC *ipc_for_signal_handlers; /* KLUDGE cover your eyes */
-
-struct citcmd *cmdlist = NULL;
-
-
-/* these variables are local to this module */
-char keepalives_enabled = KA_YES; /* send NOOPs to server when idle */
-int ok_to_interrupt = 0; /* print instant msgs asynchronously */
-time_t AnsiDetect; /* when did we send the detect code? */
-int enable_color = 0; /* nonzero for ANSI color */
-
-
-
-
-/*
- * If an interesting key has been pressed, return its value, otherwise 0
- */
-char was_a_key_pressed(void) {
- fd_set rfds;
- struct timeval tv;
- int the_character;
- int retval;
-
- FD_ZERO(&rfds);
- FD_SET(0, &rfds);
- tv.tv_sec = 0;
- tv.tv_usec = 0;
- retval = select(1, &rfds, NULL, NULL, &tv);
-
- /* Careful! Disable keepalives during keyboard polling; we're probably
- * in the middle of a data transfer from the server, in which case
- * sending a NOOP would throw the client protocol out of sync.
- */
- if ((retval > 0) && FD_ISSET(0, &rfds)) {
- set_keepalives(KA_NO);
- the_character = inkey();
- set_keepalives(KA_YES);
- }
- else {
- the_character = 0;
- }
- return(the_character);
-}
-
-
-
-
-
-/*
- * print_instant() - print instant messages if there are any
- */
-void print_instant(void)
-{
- char buf[1024];
- FILE *outpipe;
- time_t timestamp;
- struct tm stamp;
- int flags = 0;
- char sender[64];
- char node[64];
- char *listing = NULL;
- int r; /* IPC result code */
-
- if (instant_msgs == 0)
- return;
-
- if (rc_exp_beep) {
- ctdl_beep();
- }
- if (IsEmptyStr(rc_exp_cmd)) {
- color(BRIGHT_RED);
- scr_printf("\r---");
- }
-
- while (instant_msgs != 0) {
- r = CtdlIPCGetInstantMessage(ipc_for_signal_handlers, &listing, buf);
- if (r / 100 != 1)
- return;
-
- instant_msgs = extract_int(buf, 0);
- timestamp = extract_long(buf, 1);
- flags = extract_int(buf, 2);
- extract_token(sender, buf, 3, '|', sizeof sender);
- extract_token(node, buf, 4, '|', sizeof node);
- strcpy(last_paged, sender);
-
- localtime_r(×tamp, &stamp);
-
- /* If the page is a Logoff Request, honor it. */
- if (flags & 2) {
- termn8 = 1;
- return;
- }
-
- if (!IsEmptyStr(rc_exp_cmd)) {
- outpipe = popen(rc_exp_cmd, "w");
- if (outpipe != NULL) {
- /* Header derived from flags */
- if (flags & 2)
- fprintf(outpipe,
- "Please log off now, as requested ");
- else if (flags & 1)
- fprintf(outpipe, "Broadcast message ");
- else if (flags & 4)
- fprintf(outpipe, "Chat request ");
- else
- fprintf(outpipe, "Message ");
- /* Timestamp. Can this be improved? */
- if (stamp.tm_hour == 0 || stamp.tm_hour == 12)
- fprintf(outpipe, "at 12:%02d%cm",
- stamp.tm_min,
- stamp.tm_hour ? 'p' : 'a');
- else if (stamp.tm_hour > 12) /* pm */
- fprintf(outpipe, "at %d:%02dpm",
- stamp.tm_hour - 12,
- stamp.tm_min);
- else /* am */
- fprintf(outpipe, "at %d:%02dam",
- stamp.tm_hour, stamp.tm_min);
- fprintf(outpipe, " from %s", sender);
- if (strncmp(ipc_for_signal_handlers->ServInfo.nodename, node, 32))
- fprintf(outpipe, " @%s", node);
- fprintf(outpipe, ":\n%s\n", listing);
- pclose(outpipe);
- if (instant_msgs == 0)
- return;
- continue;
- }
- }
- /* fall back to built-in instant message display */
- scr_printf("\n");
-
- /* Header derived from flags */
- if (flags & 2)
- scr_printf("Please log off now, as requested ");
- else if (flags & 1)
- scr_printf("Broadcast message ");
- else if (flags & 4)
- scr_printf("Chat request ");
- else
- scr_printf("Message ");
-
- /* Timestamp. Can this be improved? */
- if (stamp.tm_hour == 0 || stamp.tm_hour == 12)/* 12am/12pm */
- scr_printf("at 12:%02d%cm", stamp.tm_min,
- stamp.tm_hour ? 'p' : 'a');
- else if (stamp.tm_hour > 12) /* pm */
- scr_printf("at %d:%02dpm",
- stamp.tm_hour - 12, stamp.tm_min);
- else /* am */
- scr_printf("at %d:%02dam", stamp.tm_hour, stamp.tm_min);
-
- /* Sender */
- scr_printf(" from %s", sender);
-
- /* Remote node, if any */
- if (strncmp(ipc_for_signal_handlers->ServInfo.nodename, node, 32))
- scr_printf(" @%s", node);
-
- scr_printf(":\n");
- fmout(screenwidth, NULL, listing, NULL, 0);
- free(listing);
-
- }
- scr_printf("\n---\n");
- color(BRIGHT_WHITE);
-
-
-}
-
-
-void set_keepalives(int s)
-{
- keepalives_enabled = (char) s;
-}
-
-/*
- * This loop handles the "keepalive" messages sent to the server when idling.
- */
-
-static time_t idlet = 0;
-static void really_do_keepalive(void) {
-
- time(&idlet);
-
- /* This may sometimes get called before we are actually connected
- * to the server. Don't do anything if we aren't connected. -IO
- */
- if (!ipc_for_signal_handlers)
- return;
-
- /* If full keepalives are enabled, send a NOOP to the server and
- * wait for a response.
- */
- if (keepalives_enabled == KA_YES) {
- CtdlIPCNoop(ipc_for_signal_handlers);
- if (instant_msgs > 0) {
- if (ok_to_interrupt == 1) {
- scr_printf("\r%64s\r", "");
- print_instant();
- scr_printf("%s%c ", room_name,
- room_prompt(room_flags));
- scr_flush();
- }
- }
- }
-
- /* If half keepalives are enabled, send a QNOP to the server (if the
- * server supports it) and then do nothing.
- */
- if ( (keepalives_enabled == KA_HALF)
- && (ipc_for_signal_handlers->ServInfo.supports_qnop > 0) ) {
- CtdlIPC_chat_send(ipc_for_signal_handlers, "QNOP");
- }
-}
-
-/*
- * threaded nonblocking keepalive stuff starts here. I'm going for a simple
- * encapsulated interface; in theory there should be no need to touch these
- * globals outside of the async_ka_* functions.
- */
-
-#ifdef THREADED_CLIENT
-static pthread_t ka_thr_handle;
-static int ka_thr_active = 0;
-static int async_ka_enabled = 0;
-
-static void *ka_thread(void *arg)
-{
-#ifdef HAVE_BACKTRACE
- char threadName[256];
-
- // Set up our name
- sprintf(threadName, "ka_Thread n");
-
- // Register for tracing
- eCrash_RegisterThread(threadName, 0);
-#endif
- really_do_keepalive();
- pthread_detach(ka_thr_handle);
- ka_thr_active = 0;
-
-#ifdef HAVE_BACKTRACE
- eCrash_UnregisterThread();
-#endif
- return NULL;
-}
-
-/* start up a thread to handle a keepalive in the background */
-static void async_ka_exec(void)
-{
- if (!ka_thr_active) {
- ka_thr_active = 1;
- if (pthread_create(&ka_thr_handle, NULL, ka_thread, NULL)) {
- perror("pthread_create");
- exit(1);
- }
- }
-}
-#endif /* THREADED_CLIENT */
-
-/* I changed this from static to not because I need to call it from
- * screen.c, either that or make something in screen.c not static.
- * Fix it how you like. Why all the staticness? stu
- */
-void do_keepalive(void)
-{
- time_t now;
-
- time(&now);
- if ((now - idlet) < ((long) S_KEEPALIVE))
- return;
-
- /* Do a space-backspace to keep telnet sessions from idling out */
- scr_printf(" %c", 8);
- scr_flush();
-
-#ifdef THREADED_CLIENT
- if (async_ka_enabled)
- async_ka_exec();
- else
-#endif
- really_do_keepalive();
-}
-
-
-/* Now the actual async-keepalve API that we expose to higher levels:
- * async_ka_start() and async_ka_end(). These do nothing when we don't have
- * threading enabled, so we avoid sprinkling ifdef's throughout the code.
- */
-
-/* wait for a background keepalive to complete. this must be done before
- * attempting any further server requests!
- */
-void async_ka_end(void)
-{
-#ifdef THREADED_CLIENT
- if (ka_thr_active)
- pthread_join(ka_thr_handle, NULL);
-
- async_ka_enabled--;
-#endif
-}
-
-/* tell do_keepalive() that keepalives are asynchronous. */
-void async_ka_start(void)
-{
-#ifdef THREADED_CLIENT
- async_ka_enabled++;
-#endif
-}
-
-
-int inkey(void)
-{ /* get a character from the keyboard, with */
- int a; /* the watchdog timer in effect if necessary */
- fd_set rfds;
- struct timeval tv;
- time_t start_time;
-
- scr_flush();
- time(&start_time);
-
- do {
- /* This loop waits for keyboard input. If the keepalive
- * timer expires, it sends a keepalive to the server if
- * necessary and then waits again.
- */
- do {
- do_keepalive();
-
- FD_ZERO(&rfds);
- FD_SET(0, &rfds);
- tv.tv_sec = S_KEEPALIVE;
- tv.tv_usec = 0;
-
- select(1, &rfds, NULL, NULL, &tv);
- } while (!FD_ISSET(0, &rfds));
-
- /* At this point, there's input, so fetch it.
- * (There's a hole in the bucket...)
- */
- a = scr_getc(SCR_BLOCK);
- if (a == 127) {
- a = 8;
- }
- if (a == 13) {
- a = 10;
- }
- } while (a == 0);
- return (a);
-}
-
-
-int yesno(void)
-{ /* Returns 1 for yes, 0 for no */
- int a;
- while (1) {
- a = inkey();
- a = tolower(a);
- if (a == 'y') {
- scr_printf("Yes\n");
- return (1);
- }
- if (a == 'n') {
- scr_printf("No\n");
- return (0);
- }
- }
-}
-
-/* Returns 1 for yes, 0 for no, arg is default value */
-int yesno_d(int d)
-{
- int a;
- while (1) {
- a = inkey();
- a = tolower(a);
- if (a == 10)
- a = (d ? 'y' : 'n');
- if (a == 'y') {
- scr_printf("Yes\n");
- return (1);
- }
- if (a == 'n') {
- scr_printf("No\n");
- return (0);
- }
- }
-}
-
-
-
-
-/*
- * Function to read a line of text from the terminal.
- *
- * string Pointer to string buffer
- * lim Maximum length
- * noshow Echo asterisks instead of keystrokes?
- * bs Allow backspacing out of the prompt? (returns -1 if this happens)
- *
- * returns: string length
- */
-int ctdl_getline(char *string, int lim, int noshow, int bs)
-{
- int pos = strlen(string);
- int ch;
-
- async_ka_start();
- if (noshow && !IsEmptyStr(string)) {
- int num_stars = strlen(string);
- while (num_stars--) {
- scr_putc('*');
- }
- }
- else {
- scr_printf("%s", string);
- }
-
- while(1) {
- ch = inkey();
-
- if ((ch == 8) && (pos > 0)) { /* backspace */
- --pos;
- scr_putc(8); scr_putc(32); scr_putc(8);
- }
-
- else if ((ch == 8) && (pos == 0) && (bs)) { /* backspace out of the prompt */
- async_ka_end();
- return(-1);
- }
-
- else if ((ch == 23) && (pos > 0)) { /* Ctrl-W deletes a word */
- while ((pos > 0) && !isspace(string[pos])) {
- --pos;
- scr_putc(8); scr_putc(32); scr_putc(8);
- }
- while ((pos > 0) && !isspace(string[pos-1])) {
- --pos;
- scr_putc(8); scr_putc(32); scr_putc(8);
- }
- }
-
- else if (ch == 10) { /* return */
- string[pos] = 0;
- scr_printf("\n");
- async_ka_end();
- return(pos);
- }
-
- else if (isprint(ch)) { /* payload characters */
- scr_putc((noshow ? '*' : ch));
- string[pos] = ch;
- ++pos;
- }
- }
-}
-
-
-/*
- * newprompt() prompt for a string, print the existing value, and
- * allow the user to press return to keep it...
- * If len is negative, pass the "noshow" flag to ctdl_getline()
- */
-void strprompt(char *prompt, char *str, int len)
-{
- print_instant();
- color(DIM_WHITE);
- scr_printf("%s", prompt);
- color(DIM_WHITE);
- scr_printf(": ");
- color(BRIGHT_CYAN);
- ctdl_getline(str, abs(len), (len<0), 0);
- color(DIM_WHITE);
-}
-
-/*
- * boolprompt() - prompt for a yes/no, print the existing value and
- * allow the user to press return to keep it...
- */
-int boolprompt(char *prompt, int prev_val)
-{
- int r;
-
- color(DIM_WHITE);
- scr_printf("%s ", prompt);
- color(DIM_MAGENTA);
- scr_printf("[");
- color(BRIGHT_MAGENTA);
- scr_printf("%s", (prev_val ? "Yes" : "No"));
- color(DIM_MAGENTA);
- scr_printf("]: ");
- color(BRIGHT_CYAN);
- r = (yesno_d(prev_val));
- color(DIM_WHITE);
- return r;
-}
-
-/*
- * intprompt() - like strprompt(), except for an integer
- * (note that it RETURNS the new value!)
- */
-int intprompt(char *prompt, int ival, int imin, int imax)
-{
- char buf[16];
- int i;
- int p;
-
- do {
- i = ival;
- snprintf(buf, sizeof buf, "%d", i);
- strprompt(prompt, buf, 15);
- i = atoi(buf);
- for (p=0; !IsEmptyStr(&buf[p]); ++p) {
- if ( (!isdigit(buf[p]))
- && ( (buf[p]!='-') || (p!=0) ) )
- i = imin - 1;
- }
- if (i < imin)
- scr_printf("*** Must be no less than %d.\n", imin);
- if (i > imax)
- scr_printf("*** Must be no more than %d.\n", imax);
- } while ((i < imin) || (i > imax));
- return (i);
-}
-
-/*
- * newprompt() prompt for a string with no existing value
- * (clears out string buffer first)
- * If len is negative, pass the "noshow" flag to ctdl_getline()
- */
-void newprompt(char *prompt, char *str, int len)
-{
- str[0] = 0;
- color(BRIGHT_MAGENTA);
- scr_printf("%s", prompt);
- color(DIM_MAGENTA);
- ctdl_getline(str, abs(len), (len<0), 0);
- color(DIM_WHITE);
-}
-
-
-int lkey(void)
-{ /* returns a lower case value */
- int a;
- a = inkey();
- if (isupper(a))
- a = tolower(a);
- return (a);
-}
-
-/*
- * parse the citadel.rc file
- */
-void load_command_set(void)
-{
- FILE *ccfile;
- char buf[1024];
- struct citcmd *cptr;
- struct citcmd *lastcmd = NULL;
- int a, d;
- int b = 0;
-
- /* first, set up some defaults for non-required variables */
-
- strcpy(editor_path, "");
- strcpy(printcmd, "");
- strcpy(imagecmd, "");
- strcpy(rc_username, "");
- strcpy(rc_password, "");
- rc_floor_mode = 0;
- rc_exp_beep = 1;
- rc_allow_attachments = 0;
- rc_remember_passwords = 0;
- strcpy(rc_exp_cmd, "");
- rc_display_message_numbers = 0;
- rc_force_mail_prompts = 0;
- rc_ansi_color = 0;
- rc_color_use_bg = 0;
- strcpy(rc_url_cmd, "");
- strcpy(rc_open_cmd, "");
- strcpy(rc_gotmail_cmd, "");
-#ifdef HAVE_OPENSSL
- rc_encrypt = RC_DEFAULT;
-#endif
-
- /* now try to open the citadel.rc file */
-
- ccfile = NULL;
- if (getenv("HOME") != NULL) {
- snprintf(buf, sizeof buf, "%s/.citadelrc", getenv("HOME"));
- ccfile = fopen(buf, "r");
- }
- if (ccfile == NULL) {
- ccfile = fopen(file_citadel_rc, "r");
- }
- if (ccfile == NULL) {
- ccfile = fopen("/etc/citadel.rc", "r");
- }
- if (ccfile == NULL) {
- ccfile = fopen("./citadel.rc", "r");
- }
- if (ccfile == NULL) {
- perror("commands: cannot open citadel.rc");
- logoff(NULL, 3);
- }
- while (fgets(buf, sizeof buf, ccfile) != NULL) {
- while ((!IsEmptyStr(buf)) ? (isspace(buf[strlen(buf) - 1])) : 0)
- buf[strlen(buf) - 1] = 0;
-
- if (!strncasecmp(buf, "encrypt=", 8)) {
- if (!strcasecmp(&buf[8], "yes")) {
-#ifdef HAVE_OPENSSL
- rc_encrypt = RC_YES;
-#else
- fprintf(stderr, "citadel.rc requires encryption support but citadel is not compiled with OpenSSL");
- logoff(NULL, 3);
-#endif
- }
-#ifdef HAVE_OPENSSL
- else if (!strcasecmp(&buf[8], "no")) {
- rc_encrypt = RC_NO;
- }
- else if (!strcasecmp(&buf[8], "default")) {
- rc_encrypt = RC_DEFAULT;
- }
-#endif
- }
-
- if (!strncasecmp(buf, "editor=", 7)) {
- strcpy(editor_path, &buf[7]);
- }
-
- if (!strncasecmp(buf, "printcmd=", 9))
- strcpy(printcmd, &buf[9]);
-
- if (!strncasecmp(buf, "imagecmd=", 9))
- strcpy(imagecmd, &buf[9]);
-
- if (!strncasecmp(buf, "expcmd=", 7))
- strcpy(rc_exp_cmd, &buf[7]);
-
- if (!strncasecmp(buf, "use_floors=", 11)) {
- if (!strcasecmp(&buf[11], "yes"))
- rc_floor_mode = RC_YES;
- if (!strcasecmp(&buf[11], "no"))
- rc_floor_mode = RC_NO;
- if (!strcasecmp(&buf[11], "default"))
- rc_floor_mode = RC_DEFAULT;
- }
- if (!strncasecmp(buf, "beep=", 5)) {
- rc_exp_beep = atoi(&buf[5]);
- }
- if (!strncasecmp(buf, "allow_attachments=", 18)) {
- rc_allow_attachments = atoi(&buf[18]);
- }
- if (!strncasecmp(buf, "idle_threshold=", 15)) {
- rc_idle_threshold = atol(&buf[15]);
- }
- if (!strncasecmp(buf, "remember_passwords=", 19)) {
- rc_remember_passwords = atoi(&buf[19]);
- }
- if (!strncasecmp(buf, "display_message_numbers=", 24)) {
- rc_display_message_numbers = atoi(&buf[24]);
- }
- if (!strncasecmp(buf, "force_mail_prompts=", 19)) {
- rc_force_mail_prompts = atoi(&buf[19]);
- }
- if (!strncasecmp(buf, "ansi_color=", 11)) {
- if (!strncasecmp(&buf[11], "on", 2))
- rc_ansi_color = 1;
- if (!strncasecmp(&buf[11], "auto", 4))
- rc_ansi_color = 2; /* autodetect */
- if (!strncasecmp(&buf[11], "user", 4))
- rc_ansi_color = 3; /* user config */
- }
- if (!strncasecmp(buf, "status_line=", 12)) {
- if (!strncasecmp(&buf[12], "on", 2))
- enable_status_line = 1;
- }
- if (!strncasecmp(buf, "use_background=", 15)) {
- if (!strncasecmp(&buf[15], "on", 2))
- rc_color_use_bg = 9;
- }
- if (!strncasecmp(buf, "prompt_control=", 15)) {
- if (!strncasecmp(&buf[15], "on", 2))
- rc_prompt_control = 1;
- if (!strncasecmp(&buf[15], "user", 4))
- rc_prompt_control = 3; /* user config */
- }
- if (!strncasecmp(buf, "username=", 9))
- strcpy(rc_username, &buf[9]);
-
- if (!strncasecmp(buf, "password=", 9))
- strcpy(rc_password, &buf[9]);
-
- if (!strncasecmp(buf, "urlcmd=", 7))
- strcpy(rc_url_cmd, &buf[7]);
-
- if (!strncasecmp(buf, "opencmd=", 7))
- strcpy(rc_open_cmd, &buf[8]);
-
- if (!strncasecmp(buf, "gotmailcmd=", 11))
- strcpy(rc_gotmail_cmd, &buf[11]);
-
- if (!strncasecmp(buf, "cmd=", 4)) {
- strcpy(buf, &buf[4]);
-
- cptr = (struct citcmd *) malloc(sizeof(struct citcmd));
-
- cptr->c_cmdnum = atoi(buf);
- for (d = strlen(buf); d >= 0; --d)
- if (buf[d] == ',')
- b = d;
- strcpy(buf, &buf[b + 1]);
-
- cptr->c_axlevel = atoi(buf);
- for (d = strlen(buf); d >= 0; --d)
- if (buf[d] == ',')
- b = d;
- strcpy(buf, &buf[b + 1]);
-
- for (a = 0; a < 5; ++a)
- cptr->c_keys[a][0] = 0;
-
- a = 0;
- b = 0;
- buf[strlen(buf) + 1] = 0;
- while (!IsEmptyStr(buf)) {
- b = strlen(buf);
- for (d = strlen(buf); d >= 0; --d)
- if (buf[d] == ',')
- b = d;
- strncpy(cptr->c_keys[a], buf, b);
- cptr->c_keys[a][b] = 0;
- if (buf[b] == ',')
- strcpy(buf, &buf[b + 1]);
- else
- strcpy(buf, "");
- ++a;
- }
-
- cptr->next = NULL;
- if (cmdlist == NULL)
- cmdlist = cptr;
- else
- lastcmd->next = cptr;
- lastcmd = cptr;
- }
- }
- fclose(ccfile);
-}
-
-
-
-/*
- * return the key associated with a command
- */
-char keycmd(char *cmdstr)
-{
- int a;
-
- for (a = 0; !IsEmptyStr(&cmdstr[a]); ++a)
- if (cmdstr[a] == '&')
- return (tolower(cmdstr[a + 1]));
- return (0);
-}
-
-
-/*
- * Output the string from a key command without the ampersand
- * "mode" should be set to 0 for normal or 1 for <C>ommand key highlighting
- */
-char *cmd_expand(char *strbuf, int mode)
-{
- int a;
- static char exp[64];
- char buf[1024];
-
- strcpy(exp, strbuf);
-
- for (a = 0; exp[a]; ++a) {
- if (strbuf[a] == '&') {
-
- /* dont echo these non mnemonic command keys */
- int noecho = strbuf[a+1] == '<' || strbuf[a+1] == '>' || strbuf[a+1] == '+' || strbuf[a+1] == '-';
-
- if (mode == 0) {
- strcpy(&exp[a], &exp[a + 1 + noecho]);
- }
- if (mode == 1) {
- exp[a] = '<';
- strcpy(buf, &exp[a + 2]);
- exp[a + 2] = '>';
- exp[a + 3] = 0;
- strcat(exp, buf);
- }
- }
- if (!strncmp(&exp[a], "^r", 2)) {
- strcpy(buf, exp);
- strcpy(&exp[a], room_name);
- strcat(exp, &buf[a + 2]);
- }
- if (!strncmp(&exp[a], "^c", 2)) {
- exp[a] = ',';
- strcpy(&exp[a + 1], &exp[a + 2]);
- }
- }
-
- return (exp);
-}
-
-
-
-/*
- * Comparison function to determine if entered commands match a
- * command loaded from the config file.
- */
-int cmdmatch(char *cmdbuf, struct citcmd *cptr, int ncomp)
-{
- int a;
- int cmdax;
-
- cmdax = 0;
- if (is_room_aide)
- cmdax = 1;
- if (axlevel >= 6)
- cmdax = 2;
-
- for (a = 0; a < ncomp; ++a) {
- if ((tolower(cmdbuf[a]) != keycmd(cptr->c_keys[a]))
- || (cptr->c_axlevel > cmdax))
- return (0);
- }
- return (1);
-}
-
-
-/*
- * This function returns 1 if a given command requires a string input
- */
-int requires_string(struct citcmd *cptr, int ncomp)
-{
- int a;
- char buf[64];
-
- strcpy(buf, cptr->c_keys[ncomp - 1]);
- for (a = 0; !IsEmptyStr(&buf[a]); ++a) {
- if (buf[a] == ':')
- return (1);
- }
- return (0);
-}
-
-
-/*
- * Input a command at the main prompt.
- * This function returns an integer command number. If the command prompts
- * for a string then it is placed in the supplied buffer.
- */
-int getcmd(CtdlIPC *ipc, char *argbuf)
-{
- char cmdbuf[5];
- int cmdspaces[5];
- int cmdpos;
- int ch;
- int a;
- int got;
- int this_lazy_cmd;
- struct citcmd *cptr;
-
- /*
- * Starting a new command now, so set sigcaught to 0. This variable
- * is set to nonzero (usually NEXT_KEY or STOP_KEY) if a command has
- * been interrupted by a keypress.
- */
- sigcaught = 0;
-
- /* Switch color support on or off if we're in user mode */
- if (rc_ansi_color == 3) {
- if (userflags & US_COLOR)
- enable_color = 1;
- else
- enable_color = 0;
- }
- /* if we're running in idiot mode, display a cute little menu */
-
- IFNEXPERT {
- scr_printf("-----------------------------------------------------------------------\n");
- scr_printf("Room cmds: <K>nown rooms, <G>oto next room, <.G>oto a specific room,\n");
- scr_printf(" <S>kip this room, <A>bandon this room, <Z>ap this room,\n");
- scr_printf(" <U>ngoto (move back)\n");
- scr_printf("Message cmds: <N>ew msgs, <F>orward read, <R>everse read, <O>ld msgs,\n");
- scr_printf(" <L>ast five msgs, <E>nter a message\n");
- scr_printf("General cmds: <?> help, <T>erminate, <C>hat, <W>ho is online\n");
- scr_printf("Misc: <X> toggle eXpert mode, <D>irectory\n");
- scr_printf("\n");
- scr_printf(" (Type .Help SUMMARY for extended commands, <X> to hide this menu)\n");
- scr_printf("-----------------------------------------------------------------------\n");
- }
-
- print_instant();
- strcpy(argbuf, "");
- cmdpos = 0;
- for (a = 0; a < 5; ++a)
- cmdbuf[a] = 0;
- /* now the room prompt... */
- ok_to_interrupt = 1;
- color(BRIGHT_WHITE);
- scr_printf("\n%s", room_name);
- color(DIM_WHITE);
- scr_printf("%c ", room_prompt(room_flags));
-
- while (1) {
- ch = inkey();
- ok_to_interrupt = 0;
-
- /* Handle the backspace key, but only if there's something
- * to backspace over...
- */
- if ((ch == 8) && (cmdpos > 0)) {
- back(cmdspaces[cmdpos - 1] + 1);
- cmdbuf[cmdpos] = 0;
- --cmdpos;
- }
- /* Spacebar invokes "lazy traversal" commands */
- if ((ch == 32) && (cmdpos == 0)) {
- this_lazy_cmd = next_lazy_cmd;
- if (this_lazy_cmd == 13)
- next_lazy_cmd = 5;
- if (this_lazy_cmd == 5)
- next_lazy_cmd = 13;
- for (cptr = cmdlist; cptr != NULL; cptr = cptr->next) {
- if (cptr->c_cmdnum == this_lazy_cmd) {
- for (a = 0; a < 5; ++a)
- if (cptr->c_keys[a][0] != 0)
- scr_printf("%s ", cmd_expand(
- cptr->c_keys[a], 0));
- scr_printf("\n");
- return (this_lazy_cmd);
- }
- }
- scr_printf("\n");
- return (this_lazy_cmd);
- }
- /* Otherwise, process the command */
- cmdbuf[cmdpos] = tolower(ch);
-
- for (cptr = cmdlist; cptr != NULL; cptr = cptr->next) {
- if (cmdmatch(cmdbuf, cptr, cmdpos + 1)) {
-
- scr_printf("%s", cmd_expand(cptr->c_keys[cmdpos], 0));
- cmdspaces[cmdpos] = strlen(
- cmd_expand(cptr->c_keys[cmdpos], 0));
- if (cmdpos < 4)
- if ((cptr->c_keys[cmdpos + 1]) != 0)
- scr_putc(' ');
- ++cmdpos;
- }
- }
-
- for (cptr = cmdlist; cptr != NULL; cptr = cptr->next) {
- if (cmdmatch(cmdbuf, cptr, 5)) {
- /* We've found our command. */
- if (requires_string(cptr, cmdpos)) {
- argbuf[0] = 0;
- ctdl_getline(argbuf, 64, 0, 0);
- } else {
- scr_printf("\n");
- }
-
- /* If this command is one that changes rooms,
- * then the next lazy-command (space bar)
- * should be "read new" instead of "goto"
- */
- if ((cptr->c_cmdnum == 5)
- || (cptr->c_cmdnum == 6)
- || (cptr->c_cmdnum == 47)
- || (cptr->c_cmdnum == 52)
- || (cptr->c_cmdnum == 16)
- || (cptr->c_cmdnum == 20))
- next_lazy_cmd = 13;
-
- /* If this command is "read new"
- * then the next lazy-command (space bar)
- * should be "goto"
- */
- if (cptr->c_cmdnum == 13)
- next_lazy_cmd = 5;
-
- return (cptr->c_cmdnum);
-
- }
- }
-
- if (ch == '?') {
- scr_printf("\rOne of ... \n");
- for (cptr = cmdlist; cptr != NULL; cptr = cptr->next) {
- if (cmdmatch(cmdbuf, cptr, cmdpos)) {
- for (a = 0; a < 5; ++a) {
- keyopt(cmd_expand(cptr->c_keys[a], 1));
- scr_printf(" ");
- }
- scr_printf("\n");
- }
- }
- sigcaught = 0;
-
- scr_printf("\n%s%c ", room_name, room_prompt(room_flags));
- got = 0;
- for (cptr = cmdlist; cptr != NULL; cptr = cptr->next) {
- if ((got == 0) && (cmdmatch(cmdbuf, cptr, cmdpos))) {
- for (a = 0; a < cmdpos; ++a) {
- scr_printf("%s ",
- cmd_expand(cptr->c_keys[a], 0));
- }
- got = 1;
- }
- }
- }
- }
-
-}
-
-
-
-
-
-/*
- * set tty modes. commands are:
- *
- * 01- set to Citadel mode
- * 2 - save current settings for later restoral
- * 3 - restore saved settings
- */
-#ifdef HAVE_TERMIOS_H
-void stty_ctdl(int cmd)
-{ /* SysV version of stty_ctdl() */
- struct termios live;
- static struct termios saved_settings;
- static int last_cmd = 0;
-
- if (cmd == SB_LAST)
- cmd = last_cmd;
- else
- last_cmd = cmd;
-
- if ((cmd == 0) || (cmd == 1)) {
- tcgetattr(0, &live);
- live.c_iflag = ISTRIP | IXON | IXANY;
- live.c_oflag = OPOST | ONLCR;
- live.c_lflag = ISIG | NOFLSH;
-
- live.c_cc[VINTR] = 0;
- live.c_cc[VQUIT] = 0;
-
-#ifdef hpux
- live.c_cc[VMIN] = 0;
- live.c_cc[VTIME] = 0;
-#endif
-
- /* do we even need this stuff anymore? */
- /* live.c_line=0; */
- live.c_cc[VERASE] = 8;
- live.c_cc[VKILL] = 24;
- live.c_cc[VEOF] = 1;
- live.c_cc[VEOL] = 255;
- live.c_cc[VEOL2] = 0;
- live.c_cc[VSTART] = 0;
- tcsetattr(0, TCSADRAIN, &live);
- }
- if (cmd == 2) {
- tcgetattr(0, &saved_settings);
- }
- if (cmd == 3) {
- tcsetattr(0, TCSADRAIN, &saved_settings);
- }
-
-}
-#else
-void stty_ctdl(int cmd)
-{ /* BSD version of stty_ctdl() */
- struct sgttyb live;
- static struct sgttyb saved_settings;
- static int last_cmd = 0;
-
- if (cmd == SB_LAST)
- cmd = last_cmd;
- else
- last_cmd = cmd;
-
- if ((cmd == 0) || (cmd == 1)) {
- gtty(0, &live);
- live.sg_flags |= CBREAK;
- live.sg_flags |= CRMOD;
- live.sg_flags |= NL1;
- live.sg_flags &= ~ECHO;
- if (cmd == 1)
- live.sg_flags |= NOFLSH;
- stty(0, &live);
- }
- if (cmd == 2) {
- gtty(0, &saved_settings);
- }
- if (cmd == 3) {
- stty(0, &saved_settings);
- }
-}
-#endif
-
-
-/*
- * display_help() - help text viewer
- */
-void display_help(CtdlIPC *ipc, char *name)
-{
- int i;
- int num_helps = sizeof(helpnames) / sizeof(char *) ;
-
- for (i=0; i<num_helps; ++i) {
- if (!strcasecmp(name, helpnames[i])) {
- fmout(screenwidth, NULL, helptexts[i], NULL, 0);
- return;
- }
- }
-
- scr_printf("'%s' not found. Enter one of:\n", name);
- for (i=0; i<num_helps; ++i) {
- scr_printf(" %s\n", helpnames[i]);
- }
-}
-
-
-/*
- * fmout() - Citadel text formatter and paginator
- */
-int fmout(
- int width, /* screen width to use */
- FILE *fpin, /* file to read from, or NULL to format given text */
- char *text, /* text to be formatted (when fpin is NULL */
- FILE *fpout, /* file to write to, or NULL to write to screen */
- int subst) /* nonzero if we should use hypertext mode */
-{
- char *buffer = NULL; /* The current message */
- char *word = NULL; /* What we are about to actually print */
- char *e; /* Pointer to position in text */
- char old = 0; /* The previous character */
- int column = 0; /* Current column */
- size_t i; /* Generic counter */
-
- /* Space for a single word, which can be at most screenwidth */
- word = (char *)calloc(1, width);
- if (!word) {
- scr_printf("Can't alloc memory to print message: %s!\n",
- strerror(errno));
- logoff(NULL, 3);
- }
-
- /* Read the entire message body into memory */
- if (fpin) {
- buffer = load_message_from_file(fpin);
- if (!buffer) {
- scr_printf("Can't print message: %s!\n",
- strerror(errno));
- logoff(NULL, 3);
- }
- } else {
- buffer = text;
- }
- e = buffer;
-
- /* Run the message body */
- while (*e) {
- /* Catch characters that shouldn't be there at all */
- if (*e == '\r') {
- e++;
- continue;
- }
- /* First, are we looking at a newline? */
- if (*e == '\n') {
- e++;
- if (*e == ' ') { /* Paragraph */
- if (fpout) {
- fprintf(fpout, "\n");
- } else {
- scr_printf("\n");
- }
- column = 0;
- } else if (old != ' ') {/* Don't print two spaces */
- if (fpout) {
- fprintf(fpout, " ");
- } else {
- scr_printf(" ");
- }
- column++;
- }
- old = '\n';
- continue;
- }
-
- /* Are we looking at a nonprintable?
- * (This section is now commented out because we could be displaying
- * a character set like UTF-8 or ISO-8859-1.)
- if ( (*e < 32) || (*e > 126) ) {
- e++;
- continue;
- } */
-
- /* Or are we looking at a space? */
- if (*e == ' ') {
- e++;
- if (column >= width - 1) {
- /* Are we in the rightmost column? */
- if (fpout) {
- fprintf(fpout, "\n");
- } else {
- scr_printf("\n");
- }
- column = 0;
- } else if (!(column == 0 && old == ' ')) {
- /* Eat only the first space on a line */
- if (fpout) {
- fprintf(fpout, " ");
- } else {
- scr_printf(" ");
- }
- column++;
- }
- /* ONLY eat the FIRST space on a line */
- old = ' ';
- continue;
- }
- old = *e;
-
- /* Read a word, slightly messy */
- i = 0;
- while (e[i]) {
- if (!isprint(e[i]) && !isspace(e[i]))
- e[i] = ' ';
- if (isspace(e[i]))
- break;
- i++;
- }
-
- /* We should never see these, but... slightly messy */
- if (e[i] == '\t' || e[i] == '\f' || e[i] == '\v')
- e[i] = ' ';
-
- /* Break up really long words */
- /* TODO: auto-hyphenation someday? */
- if (i >= width)
- i = width - 1;
- strncpy(word, e, i);
- word[i] = 0;
-
- /* Decide where to print the word */
- if (column + i >= width) {
- /* Wrap to the next line */
- if (fpout) {
- fprintf(fpout, "\n");
- } else {
- scr_printf("\n");
- }
- column = 0;
- }
-
- /* Print the word */
- if (fpout) {
- fprintf(fpout, "%s", word);
- } else {
- scr_printf("%s", word);
- }
- column += i;
- e += i; /* Start over with the whitepsace! */
- }
-
- free(word);
- if (fpin) /* We allocated this, remember? */
- free(buffer);
-
- /* Is this necessary? It makes the output kind of spacey. */
- if (fpout) {
- fprintf(fpout, "\n");
- } else {
- scr_printf("\n");
- }
-
- return sigcaught;
-}
-
-
-/*
- * support ANSI color if defined
- */
-void color(int colornum)
-{
- static int hold_color;
- static int current_color;
-
- if (colornum == COLOR_PUSH) {
- hold_color = current_color;
- return;
- }
-
- if (colornum == COLOR_POP) {
- color(hold_color);
- return;
- }
-
- current_color = colornum;
- if (enable_color) {
- /* When switching to dim white, actually output an 'original
- * pair' sequence -- this looks better on black-on-white
- * terminals. - Changed to ORIGINAL_PAIR as this actually
- * wound up looking horrible on black-on-white terminals, not
- * to mention transparent terminals.
- */
- if (colornum == ORIGINAL_PAIR)
- printf("\033[0;39;49m");
- else
- printf("\033[%d;3%d;4%dm",
- (colornum & 8) ? 1 : 0,
- (colornum & 7),
- rc_color_use_bg);
-
- }
-}
-
-void cls(int colornum)
-{
- if (enable_color) {
- printf("\033[4%dm\033[2J\033[H\033[0m",
- colornum ? colornum : rc_color_use_bg);
- }
-}
-
-
-/*
- * Detect whether ANSI color is available (answerback)
- */
-void send_ansi_detect(void)
-{
- if (rc_ansi_color == 2) {
- printf("\033[c");
- scr_flush();
- time(&AnsiDetect);
- }
-}
-
-void look_for_ansi(void)
-{
- fd_set rfds;
- struct timeval tv;
- char abuf[512];
- time_t now;
- int a, rv;
-
- if (rc_ansi_color == 0) {
- enable_color = 0;
- } else if (rc_ansi_color == 1) {
- enable_color = 1;
- } else if (rc_ansi_color == 2) {
-
- /* otherwise, do the auto-detect */
-
- strcpy(abuf, "");
-
- time(&now);
- if ((now - AnsiDetect) < 2)
- sleep(1);
-
- do {
- FD_ZERO(&rfds);
- FD_SET(0, &rfds);
- tv.tv_sec = 0;
- tv.tv_usec = 1;
-
- select(1, &rfds, NULL, NULL, &tv);
- if (FD_ISSET(0, &rfds)) {
- abuf[strlen(abuf) + 1] = 0;
- rv = read(0, &abuf[strlen(abuf)], 1);
- if (rv < 0) {
- scr_printf("failed to read after select: %s",
- strerror(errno));
- break;
- }
- }
- } while (FD_ISSET(0, &rfds));
-
- for (a = 0; !IsEmptyStr(&abuf[a]); ++a) {
- if ((abuf[a] == 27) && (abuf[a + 1] == '[')
- && (abuf[a + 2] == '?')) {
- enable_color = 1;
- }
- }
- }
-}
-
-
-/*
- * Display key options (highlight hotkeys inside angle brackets)
- */
-void keyopt(char *buf) {
- int i;
-
- color(DIM_WHITE);
- for (i=0; !IsEmptyStr(&buf[i]); ++i) {
- if (buf[i]=='<') {
- scr_printf("%c", buf[i]);
- color(BRIGHT_MAGENTA);
- } else {
- if (buf[i]=='>'&& buf[i+1] != '>') {
- color(DIM_WHITE);
- }
- scr_printf("%c", buf[i]);
- }
- }
- color(DIM_WHITE);
-}
-
-
-
-/*
- * Present a key-menu line choice type of thing
- */
-char keymenu(char *menuprompt, char *menustring) {
- int i, c, a;
- int choices;
- int do_prompt = 0;
- char buf[1024];
- int ch;
- int display_prompt = 1;
-
- choices = num_tokens(menustring, '|');
-
- if (menuprompt != NULL) do_prompt = 1;
- if ((menuprompt != NULL) && (IsEmptyStr(menuprompt))) do_prompt = 0;
-
- while (1) {
- if (display_prompt) {
- if (do_prompt) {
- scr_printf("%s ", menuprompt);
- }
- else {
- for (i=0; i<choices; ++i) {
- extract_token(buf, menustring, i, '|', sizeof buf);
- keyopt(buf);
- scr_printf(" ");
- }
- }
- scr_printf("-> ");
- display_prompt = 0;
- }
- ch = lkey();
-
- if ( (do_prompt) && (ch=='?') ) {
- scr_printf("\rOne of... ");
- scr_printf(" \n");
- for (i=0; i<choices; ++i) {
- extract_token(buf, menustring, i, '|', sizeof buf);
- scr_printf(" ");
- keyopt(buf);
- scr_printf("\n");
- }
- scr_printf("\n");
- display_prompt = 1;
- }
-
- for (i=0; i<choices; ++i) {
- extract_token(buf, menustring, i, '|', sizeof buf);
- for (c=1; !IsEmptyStr(&buf[c]); ++c) {
- if ( (ch == tolower(buf[c]))
- && (buf[c-1]=='<')
- && (buf[c+1]=='>') ) {
- for (a=0; !IsEmptyStr(&buf[a]); ++a) {
- if ( (a!=(c-1)) && (a!=(c+1))) {
- scr_putc(buf[a]);
- }
- }
- scr_printf("\n");
- return ch;
- }
- }
- }
- }
-}
projects / citadel.git / blobdiff