/*
- * Citadel/UX
- *
- * commands.c - front end for Citadel
- *
- * This version is the traditional command parser for room prompts.
- *
* $Id$
*
+ * This file contains functions which implement parts of the
+ * text-mode user interface.
+ *
*/
#include "sysdep.h"
#include <sys/select.h>
#endif
+#ifdef THREADED_CLIENT
+#include <pthread.h>
+#endif
#include <signal.h>
#include <errno.h>
#include "routines.h"
#include "routines2.h"
#include "tools.h"
+#include "rooms.h"
#ifndef HAVE_SNPRINTF
#include "snprintf.h"
#endif
int rc_exp_beep;
-char rc_exp_cmd[256];
+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 num_urls = 0;
-char urls[MAXURLS][256];
-char rc_url_cmd[256];
+char urls[MAXURLS][1024];
+char rc_url_cmd[1024];
char *gl_string;
int next_lazy_cmd = 5;
+int lines_printed = 0; /* line count for paginator */
+extern int screenwidth, screenheight;
+extern int termn8;
+
struct citcmd *cmdlist = NULL;
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 (FD_ISSET(0, &rfds)) {
+ set_keepalives(KA_NO);
+ the_character = inkey();
+ set_keepalives(KA_YES);
+ }
+ else {
+ the_character = 0;
+ }
+ return(the_character);
+}
+
+
+
+
+
+/*
+ * Check to see if we need to pause at the end of a screen.
+ * If we do, we have to disable server keepalives during the pause because
+ * we are probably in the middle of a server operation and the NOOP command
+ * would confuse everything.
+ */
+int checkpagin(int lp, int pagin, int height)
+{
+ int thekey;
+
+ if (sigcaught) return(lp);
+ thekey = was_a_key_pressed();
+ if ( (thekey == NEXT_KEY) || (thekey == STOP_KEY)) sigcaught = thekey;
+ if (sigcaught) return(lp);
+
+ if (!pagin) return(0);
+ if (lp>=(height-1)) {
+ set_keepalives(KA_NO);
+ hit_any_key();
+ set_keepalives(KA_YES);
+ return(0);
+ }
+ return(lp);
+}
+
+
+
+
+/*
+ * pprintf() ... paginated version of printf()
+ */
+void pprintf(const char *format, ...) {
+ va_list arg_ptr;
+ static char buf[4096]; /* static for performance, change if needed */
+ int i;
+
+ /* If sigcaught is nonzero, a keypress has interrupted this and we
+ * should just drain output.
+ */
+ if (sigcaught) return;
+
+ /* Otherwise, start spewing... */
+ va_start(arg_ptr, format);
+ vsprintf(buf, format, arg_ptr);
+ va_end(arg_ptr);
+
+ for (i=0; i<strlen(buf); ++i) {
+ putc(buf[i], stdout);
+ if (buf[i]==10) {
+ ++lines_printed;
+ lines_printed = checkpagin(lines_printed,
+ (userflags & US_PAGINATOR),
+ screenheight);
+ }
+ }
+}
+
+
+
/*
* print_express() - print express messages if there are any
*/
void print_express(void)
{
- char buf[256];
+ char buf[1024];
FILE *outpipe;
+ time_t timestamp;
+ struct tm *stamp;
+ int flags = 0;
+ char sender[64];
+ char node[64];
if (express_msgs == 0)
return;
- express_msgs = 0;
- serv_puts("PEXP");
- serv_gets(buf);
- if (buf[0] != '1')
- return;
- if (strlen(rc_exp_cmd) > 0) {
- outpipe = popen(rc_exp_cmd, "w");
- if (outpipe != NULL) {
- while (serv_gets(buf), strcmp(buf, "000")) {
- fprintf(outpipe, "%s\n", buf);
- }
- pclose(outpipe);
- return;
- }
- }
- /* fall back to built-in express message display */
if (rc_exp_beep) {
putc(7, stdout);
}
- color(BRIGHT_RED);
- printf("---\n");
- while (serv_gets(buf), strcmp(buf, "000")) {
- printf("%s\n", buf);
+ if (strlen(rc_exp_cmd) == 0) {
+ color(BRIGHT_RED);
+ printf("\r---");
}
- printf("---\n");
+
+ while (express_msgs != 0) {
+ serv_puts("GEXP");
+ serv_gets(buf);
+ if (buf[0] != '1')
+ return;
+
+ express_msgs = extract_int(&buf[4], 0);
+ timestamp = extract_long(&buf[4], 1);
+ flags = extract_int(&buf[4], 2);
+ extract(sender, &buf[4], 3);
+ extract(node, &buf[4], 4);
+
+ stamp = localtime(×tamp);
+
+ /* If the page is a Logoff Request, honor it. */
+ if (flags & 2) {
+ termn8 = 1;
+ return;
+ }
+
+ if (strlen(rc_exp_cmd) > 0) {
+ 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(serv_info.serv_nodename, node, 32))
+ fprintf(outpipe, " @%s", node);
+ fprintf(outpipe, ":\n");
+ while (serv_gets(buf), strcmp(buf, "000")) {
+ fprintf(outpipe, "%s\n", buf);
+ }
+ pclose(outpipe);
+ if (express_msgs == 0)
+ return;
+ continue;
+ }
+ }
+ /* fall back to built-in express message display */
+ printf("\n");
+
+ /* Header derived from flags */
+ if (flags & 2)
+ printf("Please log off now, as requested ");
+ else if (flags & 1)
+ printf("Broadcast message ");
+ else if (flags & 4)
+ printf("Chat request ");
+ else
+ printf("Message ");
+
+ /* Timestamp. Can this be improved? */
+ if (stamp->tm_hour == 0 || stamp->tm_hour == 12)/* 12am/12pm */
+ printf("at 12:%02d%cm", stamp->tm_min,
+ stamp->tm_hour ? 'p' : 'a');
+ else if (stamp->tm_hour > 12) /* pm */
+ printf("at %d:%02dpm",
+ stamp->tm_hour - 12, stamp->tm_min);
+ else /* am */
+ printf("at %d:%02dam", stamp->tm_hour, stamp->tm_min);
+
+ /* Sender */
+ printf(" from %s", sender);
+
+ /* Remote node, if any */
+ if (strncmp(serv_info.serv_nodename, node, 32))
+ printf(" @%s", node);
+
+ printf(":\n");
+
+ while (serv_gets(buf), strcmp(buf, "000")) {
+ printf("%s", buf);
+ }
+ }
+ printf("\n---\n");
color(BRIGHT_WHITE);
+
+
}
/*
* This loop handles the "keepalive" messages sent to the server when idling.
*/
-void do_keepalive(void)
+
+static time_t idlet = 0;
+static void really_do_keepalive(void) {
+ char buf[1024];
+
+ time(&idlet);
+ if (keepalives_enabled == KA_YES) {
+ serv_puts("NOOP");
+ serv_gets(buf);
+ if (buf[3] == '*') {
+ express_msgs = 1;
+ if (ok_to_interrupt == 1) {
+ printf("\r%64s\r", "");
+ print_express();
+ printf("%s%c ", room_name,
+ room_prompt(room_flags));
+ fflush(stdout);
+ }
+ }
+ }
+}
+
+/* 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)
+{
+ really_do_keepalive();
+ pthread_detach(ka_thr_handle);
+ ka_thr_active = 0;
+ 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 */
+
+static void do_keepalive(void)
{
- char buf[256];
- static time_t idlet = 0;
time_t now;
time(&now);
if ((now - idlet) < ((long) S_KEEPALIVE))
return;
- time(&idlet);
- /* Do a space-backspace to keep socksified telnet sessions open */
+ /* Do a space-backspace to keep telnet sessions from idling out */
printf(" %c", 8);
fflush(stdout);
- if (keepalives_enabled != KA_NO) {
- serv_puts("NOOP");
- if (keepalives_enabled == KA_YES) {
- serv_gets(buf);
- if (buf[3] == '*') {
- express_msgs = 1;
- if (ok_to_interrupt == 1) {
- printf("\r%64s\r", "");
- print_express();
- printf("%s%c ", room_name,
- room_prompt(room_flags));
- fflush(stdout);
- }
- }
- }
- }
+#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
}
char inbuf[2];
fflush(stdout);
+ lines_printed = 0;
time(&start_time);
do {
*/
do {
do_keepalive();
+
FD_ZERO(&rfds);
FD_SET(0, &rfds);
tv.tv_sec = S_KEEPALIVE;
}
strcpy(string, "");
gl_string = string;
+ async_ka_start();
GLA:a = inkey();
a = (a & 127);
if ((a == 8) && (strlen(string) == 0))
if ((a == 13) || (a == 10)) {
putc(13, stdout);
putc(10, stdout);
+ async_ka_end();
return;
}
if (a < 32)
{
char buf[16];
int i;
- i = ival;
+ int p;
+
do {
+ i = ival;
snprintf(buf, sizeof buf, "%d", i);
strprompt(prompt, buf, 15);
i = atoi(buf);
+ for (p=0; p<strlen(buf); ++p) {
+ if ( (!isdigit(buf[p]))
+ && ( (buf[p]!='-') || (p!=0) ) )
+ i = imin - 1;
+ }
if (i < imin)
printf("*** Must be no less than %d.\n", imin);
if (i > imax)
void load_command_set(void)
{
FILE *ccfile;
- char buf[256];
+ char buf[1024];
struct citcmd *cptr;
struct citcmd *lastcmd = NULL;
int a, d;
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;
perror("commands: cannot open citadel.rc");
logoff(errno);
}
- while (fgets(buf, 256, ccfile) != NULL) {
+ while (fgets(buf, sizeof buf, ccfile) != NULL) {
while ((strlen(buf) > 0) ? (isspace(buf[strlen(buf) - 1])) : 0)
buf[strlen(buf) - 1] = 0;
- if (!struncmp(buf, "editor=", 7))
+ if (!strncasecmp(buf, "editor=", 7))
strcpy(editor_path, &buf[7]);
- if (!struncmp(buf, "printcmd=", 9))
+ if (!strncasecmp(buf, "printcmd=", 9))
strcpy(printcmd, &buf[9]);
- if (!struncmp(buf, "expcmd=", 7))
+ if (!strncasecmp(buf, "expcmd=", 7))
strcpy(rc_exp_cmd, &buf[7]);
- if (!struncmp(buf, "local_screen_dimensions=", 24))
+ if (!strncasecmp(buf, "local_screen_dimensions=", 24))
have_xterm = (char) atoi(&buf[24]);
- if (!struncmp(buf, "use_floors=", 11)) {
- if (!strucmp(&buf[11], "yes"))
+ if (!strncasecmp(buf, "use_floors=", 11)) {
+ if (!strcasecmp(&buf[11], "yes"))
rc_floor_mode = RC_YES;
- if (!strucmp(&buf[11], "no"))
+ if (!strcasecmp(&buf[11], "no"))
rc_floor_mode = RC_NO;
- if (!strucmp(&buf[11], "default"))
+ if (!strcasecmp(&buf[11], "default"))
rc_floor_mode = RC_DEFAULT;
}
- if (!struncmp(buf, "beep=", 5)) {
+ if (!strncasecmp(buf, "beep=", 5)) {
rc_exp_beep = atoi(&buf[5]);
}
- if (!struncmp(buf, "allow_attachments=", 18)) {
+ if (!strncasecmp(buf, "allow_attachments=", 18)) {
rc_allow_attachments = atoi(&buf[18]);
}
- if (!struncmp(buf, "display_message_numbers=", 24)) {
+ 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 (!struncmp(buf, "force_mail_prompts=", 19)) {
+ if (!strncasecmp(buf, "force_mail_prompts=", 19)) {
rc_force_mail_prompts = atoi(&buf[19]);
}
- if (!struncmp(buf, "ansi_color=", 11)) {
- if (!struncmp(&buf[11], "on", 2))
+ if (!strncasecmp(buf, "ansi_color=", 11)) {
+ if (!strncasecmp(&buf[11], "on", 2))
rc_ansi_color = 1;
- if (!struncmp(&buf[11], "auto", 4))
+ if (!strncasecmp(&buf[11], "auto", 4))
rc_ansi_color = 2; /* autodetect */
- if (!struncmp(&buf[11], "user", 4))
+ if (!strncasecmp(&buf[11], "user", 4))
rc_ansi_color = 3; /* user config */
}
- if (!struncmp(buf, "username=", 9))
+ if (!strncasecmp(buf, "username=", 9))
strcpy(rc_username, &buf[9]);
- if (!struncmp(buf, "password=", 9))
+ if (!strncasecmp(buf, "password=", 9))
strcpy(rc_password, &buf[9]);
- if (!struncmp(buf, "urlcmd=", 7))
+ if (!strncasecmp(buf, "urlcmd=", 7))
strcpy(rc_url_cmd, &buf[7]);
- if (!struncmp(buf, "cmd=", 4)) {
+ if (!strncasecmp(buf, "cmd=", 4)) {
strcpy(buf, &buf[4]);
cptr = (struct citcmd *) malloc(sizeof(struct citcmd));
{
int a;
static char exp[64];
- char buf[256];
+ char buf[1024];
strcpy(exp, strbuf);
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)
/*
* set tty modes. commands are:
*
- * 0 - set to bbs mode, intr/quit disabled
- * 1 - set to bbs mode, intr/quit enabled
+ * 01- set to bbs mode
* 2 - save current settings for later restoral
* 3 - restore saved settings
*/
live.c_oflag = OPOST | ONLCR;
live.c_lflag = ISIG | NOFLSH;
- if (cmd == SB_YES_INTR) {
- live.c_cc[VINTR] = NEXT_KEY;
- live.c_cc[VQUIT] = STOP_KEY;
- signal(SIGINT, *sighandler);
- signal(SIGQUIT, *sighandler);
- } else {
- signal(SIGINT, SIG_IGN);
- signal(SIGQUIT, SIG_IGN);
- live.c_cc[VINTR] = (-1);
- live.c_cc[VQUIT] = (-1);
- }
+ live.c_cc[VINTR] = (-1);
+ live.c_cc[VQUIT] = (-1);
+
+#ifdef hpux
+ live.c_cc[VMIN] = 0;
+ live.c_cc[VTIME] = 0;
+#endif
/* do we even need this stuff anymore? */
/* live.c_line=0; */
/*
* fmout() - Citadel text formatter and paginator
*/
-int fmout(int width, FILE * fp, char pagin, int height, int starting_lp, char subst)
- /* screen width to use */
- /* file to read from, or NULL to read from server */
- /* nonzero if we should use the paginator */
- /* screen height to use */
- /* starting value for lines_printed, -1 for global */
- /* nonzero if we should use hypertext mode */
+int fmout(
+ int width, /* screen width to use */
+ FILE *fp, /* file to read from, or NULL to read from server */
+ char pagin, /* nonzero if we should use the paginator */
+ int height, /* screen height to use */
+ int starting_lp,/* starting value for lines_printed, -1 for global */
+ char subst) /* nonzero if we should use hypertext mode */
{
int a, b, c, d, old;
int real = (-1);
strcpy(buffer, "");
c = 1; /* c is the current pos */
- sigcaught = 0;
- sttybbs(1);
-
FMTA: while ((eof_flag == 0) && (strlen(buffer) < 126)) {
-
- if (sigcaught)
- goto OOPS;
if (fp != NULL) { /* read from file */
if (feof(fp))
eof_flag = 1;
}
}
- if ( (!struncmp(buffer, "http://", 7))
- || (!struncmp(buffer, "ftp://", 6)) ) {
+ if ( (!strncasecmp(buffer, "http://", 7))
+ || (!strncasecmp(buffer, "ftp://", 6)) ) {
safestrncpy(urls[num_urls], buffer, 255);
for (a=0; a<strlen(urls[num_urls]); ++a) {
b = urls[num_urls][a];
if ( (b==' ') || (b==')') || (b=='>') || (b==10)
- || (b==13) || (b==9) )
+ || (b==13) || (b==9) || (b=='\"') )
urls[num_urls][a] = 0;
}
++num_urls;
c = 1;
++lines_printed;
lines_printed = checkpagin(lines_printed, pagin, height);
+ if (sigcaught) goto OOPS;
strcpy(aaa, "");
goto FMTA;
}
goto FMTA;
- /* signal caught; drain the server */
- OOPS:do {
+ /* keypress caught; drain the server */
+OOPS: do {
serv_gets(aaa);
} while (strcmp(aaa, "000"));
- FMTEND:printf("\n");
+FMTEND: printf("\n");
++lines_printed;
lines_printed = checkpagin(lines_printed, pagin, height);
return (sigcaught);
current_color = colornum;
if (enable_color) {
- printf("\033[3%dm", (colornum % 8));
+ /* When switching to dim white, actually output an 'original
+ * pair' sequence -- this looks better on black-on-white
+ * terminals.
+ */
+ if (colornum == DIM_WHITE)
+ printf("\033[39;49m");
+ else
+ printf("\033[3%d;40m", (colornum & 7));
+
if ((colornum >= 8) && (is_bold == 0)) {
printf("\033[1m");
is_bold = 1;
}
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) if (strlen(menuprompt)==0) do_prompt = 0;
+
+ while (1) {
+ if (display_prompt) {
+ if (do_prompt) {
+ printf("%s ", menuprompt);
+ }
+ else {
+ for (i=0; i<choices; ++i) {
+ extract(buf, menustring, i);
+ keyopt(buf);
+ printf(" ");
+ }
+ }
+ printf(" -> ");
+ display_prompt = 0;
+ }
+ ch = lkey();
+
+ if ( (do_prompt) && (ch=='?') ) {
+ printf("\rOne of... ");
+ printf(" \n");
+ for (i=0; i<choices; ++i) {
+ extract(buf, menustring, i);
+ printf(" ");
+ keyopt(buf);
+ printf("\n");
+ }
+ printf("\n");
+ display_prompt = 1;
+ }
+
+ for (i=0; i<choices; ++i) {
+ extract(buf, menustring, i);
+ for (c=1; c<strlen(buf); ++c) {
+ if ( (ch == tolower(buf[c]))
+ && (buf[c-1]=='<')
+ && (buf[c+1]=='>') ) {
+ for (a=0; a<strlen(buf); ++a) {
+ if ( (a!=(c-1)) && (a!=(c+1))) {
+ putc(buf[a], stdout);
+ }
+ }
+ printf("\n\n");
+ return ch;
+ }
+ }
+ }
+ }
+}