1 | /* $OpenBSD$ */ |
2 | |
3 | /* |
4 | * Copyright (c) 2009 Nicholas Marriott <[email protected]> |
5 | * |
6 | * Permission to use, copy, modify, and distribute this software for any |
7 | * purpose with or without fee is hereby granted, provided that the above |
8 | * copyright notice and this permission notice appear in all copies. |
9 | * |
10 | * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
11 | * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
12 | * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR |
13 | * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
14 | * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER |
15 | * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING |
16 | * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
17 | */ |
18 | |
19 | #include <sys/types.h> |
20 | #include <sys/ioctl.h> |
21 | #include <sys/uio.h> |
22 | |
23 | #include <errno.h> |
24 | #include <event.h> |
25 | #include <fcntl.h> |
26 | #include <stdlib.h> |
27 | #include <string.h> |
28 | #include <time.h> |
29 | #include <unistd.h> |
30 | |
31 | #include "tmux.h" |
32 | |
33 | static void server_client_free(int, short, void *); |
34 | static void server_client_check_focus(struct window_pane *); |
35 | static void server_client_check_resize(struct window_pane *); |
36 | static key_code server_client_check_mouse(struct client *, struct key_event *); |
37 | static void server_client_repeat_timer(int, short, void *); |
38 | static void server_client_click_timer(int, short, void *); |
39 | static void server_client_check_exit(struct client *); |
40 | static void server_client_check_redraw(struct client *); |
41 | static void server_client_set_title(struct client *); |
42 | static void server_client_reset_state(struct client *); |
43 | static int server_client_assume_paste(struct session *); |
44 | static void server_client_clear_overlay(struct client *); |
45 | static void server_client_resize_event(int, short, void *); |
46 | |
47 | static void server_client_dispatch(struct imsg *, void *); |
48 | static void server_client_dispatch_command(struct client *, struct imsg *); |
49 | static void server_client_dispatch_identify(struct client *, struct imsg *); |
50 | static void server_client_dispatch_shell(struct client *); |
51 | static void server_client_dispatch_write_ready(struct client *, |
52 | struct imsg *); |
53 | static void server_client_dispatch_read_data(struct client *, |
54 | struct imsg *); |
55 | static void server_client_dispatch_read_done(struct client *, |
56 | struct imsg *); |
57 | |
58 | /* Number of attached clients. */ |
59 | u_int |
60 | server_client_how_many(void) |
61 | { |
62 | struct client *c; |
63 | u_int n; |
64 | |
65 | n = 0; |
66 | TAILQ_FOREACH(c, &clients, entry) { |
67 | if (c->session != NULL && (~c->flags & CLIENT_DETACHING)) |
68 | n++; |
69 | } |
70 | return (n); |
71 | } |
72 | |
73 | /* Overlay timer callback. */ |
74 | static void |
75 | server_client_overlay_timer(__unused int fd, __unused short events, void *data) |
76 | { |
77 | server_client_clear_overlay(data); |
78 | } |
79 | |
80 | /* Set an overlay on client. */ |
81 | void |
82 | server_client_set_overlay(struct client *c, u_int delay, overlay_draw_cb drawcb, |
83 | overlay_key_cb keycb, overlay_free_cb freecb, void *data) |
84 | { |
85 | struct timeval tv; |
86 | |
87 | if (c->overlay_draw != NULL) |
88 | server_client_clear_overlay(c); |
89 | |
90 | tv.tv_sec = delay / 1000; |
91 | tv.tv_usec = (delay % 1000) * 1000L; |
92 | |
93 | if (event_initialized(&c->overlay_timer)) |
94 | evtimer_del(&c->overlay_timer); |
95 | evtimer_set(&c->overlay_timer, server_client_overlay_timer, c); |
96 | if (delay != 0) |
97 | evtimer_add(&c->overlay_timer, &tv); |
98 | |
99 | c->overlay_draw = drawcb; |
100 | c->overlay_key = keycb; |
101 | c->overlay_free = freecb; |
102 | c->overlay_data = data; |
103 | |
104 | c->tty.flags |= (TTY_FREEZE|TTY_NOCURSOR); |
105 | server_redraw_client(c); |
106 | } |
107 | |
108 | /* Clear overlay mode on client. */ |
109 | static void |
110 | server_client_clear_overlay(struct client *c) |
111 | { |
112 | if (c->overlay_draw == NULL) |
113 | return; |
114 | |
115 | if (event_initialized(&c->overlay_timer)) |
116 | evtimer_del(&c->overlay_timer); |
117 | |
118 | if (c->overlay_free != NULL) |
119 | c->overlay_free(c); |
120 | |
121 | c->overlay_draw = NULL; |
122 | c->overlay_key = NULL; |
123 | |
124 | c->tty.flags &= ~(TTY_FREEZE|TTY_NOCURSOR); |
125 | server_redraw_client(c); |
126 | } |
127 | |
128 | /* Check if this client is inside this server. */ |
129 | int |
130 | server_client_check_nested(struct client *c) |
131 | { |
132 | struct environ_entry *envent; |
133 | struct window_pane *wp; |
134 | |
135 | envent = environ_find(c->environ, "TMUX" ); |
136 | if (envent == NULL || *envent->value == '\0') |
137 | return (0); |
138 | |
139 | RB_FOREACH(wp, window_pane_tree, &all_window_panes) { |
140 | if (strcmp(wp->tty, c->ttyname) == 0) |
141 | return (1); |
142 | } |
143 | return (0); |
144 | } |
145 | |
146 | /* Set client key table. */ |
147 | void |
148 | server_client_set_key_table(struct client *c, const char *name) |
149 | { |
150 | if (name == NULL) |
151 | name = server_client_get_key_table(c); |
152 | |
153 | key_bindings_unref_table(c->keytable); |
154 | c->keytable = key_bindings_get_table(name, 1); |
155 | c->keytable->references++; |
156 | } |
157 | |
158 | /* Get default key table. */ |
159 | const char * |
160 | server_client_get_key_table(struct client *c) |
161 | { |
162 | struct session *s = c->session; |
163 | const char *name; |
164 | |
165 | if (s == NULL) |
166 | return ("root" ); |
167 | |
168 | name = options_get_string(s->options, "key-table" ); |
169 | if (*name == '\0') |
170 | return ("root" ); |
171 | return (name); |
172 | } |
173 | |
174 | /* Is this table the default key table? */ |
175 | static int |
176 | server_client_is_default_key_table(struct client *c, struct key_table *table) |
177 | { |
178 | return (strcmp(table->name, server_client_get_key_table(c)) == 0); |
179 | } |
180 | |
181 | /* Create a new client. */ |
182 | struct client * |
183 | server_client_create(int fd) |
184 | { |
185 | struct client *c; |
186 | |
187 | setblocking(fd, 0); |
188 | |
189 | c = xcalloc(1, sizeof *c); |
190 | c->references = 1; |
191 | c->peer = proc_add_peer(server_proc, fd, server_client_dispatch, c); |
192 | |
193 | if (gettimeofday(&c->creation_time, NULL) != 0) |
194 | fatal("gettimeofday failed" ); |
195 | memcpy(&c->activity_time, &c->creation_time, sizeof c->activity_time); |
196 | |
197 | c->environ = environ_create(); |
198 | |
199 | c->fd = -1; |
200 | c->cwd = NULL; |
201 | |
202 | TAILQ_INIT(&c->queue); |
203 | |
204 | c->tty.fd = -1; |
205 | c->title = NULL; |
206 | |
207 | c->session = NULL; |
208 | c->last_session = NULL; |
209 | |
210 | c->tty.sx = 80; |
211 | c->tty.sy = 24; |
212 | |
213 | status_init(c); |
214 | |
215 | c->message_string = NULL; |
216 | TAILQ_INIT(&c->message_log); |
217 | |
218 | c->prompt_string = NULL; |
219 | c->prompt_buffer = NULL; |
220 | c->prompt_index = 0; |
221 | |
222 | RB_INIT(&c->files); |
223 | |
224 | c->flags |= CLIENT_FOCUSED; |
225 | |
226 | c->keytable = key_bindings_get_table("root" , 1); |
227 | c->keytable->references++; |
228 | |
229 | evtimer_set(&c->repeat_timer, server_client_repeat_timer, c); |
230 | evtimer_set(&c->click_timer, server_client_click_timer, c); |
231 | |
232 | TAILQ_INSERT_TAIL(&clients, c, entry); |
233 | log_debug("new client %p" , c); |
234 | return (c); |
235 | } |
236 | |
237 | /* Open client terminal if needed. */ |
238 | int |
239 | server_client_open(struct client *c, char **cause) |
240 | { |
241 | if (c->flags & CLIENT_CONTROL) |
242 | return (0); |
243 | |
244 | if (strcmp(c->ttyname, "/dev/tty" ) == 0) { |
245 | *cause = xstrdup("can't use /dev/tty" ); |
246 | return (-1); |
247 | } |
248 | |
249 | if (!(c->flags & CLIENT_TERMINAL)) { |
250 | *cause = xstrdup("not a terminal" ); |
251 | return (-1); |
252 | } |
253 | |
254 | if (tty_open(&c->tty, cause) != 0) |
255 | return (-1); |
256 | |
257 | return (0); |
258 | } |
259 | |
260 | /* Lost a client. */ |
261 | void |
262 | server_client_lost(struct client *c) |
263 | { |
264 | struct message_entry *msg, *msg1; |
265 | struct client_file *cf; |
266 | |
267 | c->flags |= CLIENT_DEAD; |
268 | |
269 | server_client_clear_overlay(c); |
270 | status_prompt_clear(c); |
271 | status_message_clear(c); |
272 | |
273 | RB_FOREACH(cf, client_files, &c->files) { |
274 | cf->error = EINTR; |
275 | file_fire_done(cf); |
276 | } |
277 | |
278 | TAILQ_REMOVE(&clients, c, entry); |
279 | log_debug("lost client %p" , c); |
280 | |
281 | /* |
282 | * If CLIENT_TERMINAL hasn't been set, then tty_init hasn't been called |
283 | * and tty_free might close an unrelated fd. |
284 | */ |
285 | if (c->flags & CLIENT_TERMINAL) |
286 | tty_free(&c->tty); |
287 | free(c->ttyname); |
288 | free(c->term); |
289 | |
290 | status_free(c); |
291 | |
292 | free(c->title); |
293 | free((void *)c->cwd); |
294 | |
295 | evtimer_del(&c->repeat_timer); |
296 | evtimer_del(&c->click_timer); |
297 | |
298 | key_bindings_unref_table(c->keytable); |
299 | |
300 | free(c->message_string); |
301 | if (event_initialized(&c->message_timer)) |
302 | evtimer_del(&c->message_timer); |
303 | TAILQ_FOREACH_SAFE(msg, &c->message_log, entry, msg1) { |
304 | free(msg->msg); |
305 | TAILQ_REMOVE(&c->message_log, msg, entry); |
306 | free(msg); |
307 | } |
308 | |
309 | free(c->prompt_saved); |
310 | free(c->prompt_string); |
311 | free(c->prompt_buffer); |
312 | |
313 | format_lost_client(c); |
314 | environ_free(c->environ); |
315 | |
316 | proc_remove_peer(c->peer); |
317 | c->peer = NULL; |
318 | |
319 | server_client_unref(c); |
320 | |
321 | server_add_accept(0); /* may be more file descriptors now */ |
322 | |
323 | recalculate_sizes(); |
324 | server_check_unattached(); |
325 | server_update_socket(); |
326 | } |
327 | |
328 | /* Remove reference from a client. */ |
329 | void |
330 | server_client_unref(struct client *c) |
331 | { |
332 | log_debug("unref client %p (%d references)" , c, c->references); |
333 | |
334 | c->references--; |
335 | if (c->references == 0) |
336 | event_once(-1, EV_TIMEOUT, server_client_free, c, NULL); |
337 | } |
338 | |
339 | /* Free dead client. */ |
340 | static void |
341 | server_client_free(__unused int fd, __unused short events, void *arg) |
342 | { |
343 | struct client *c = arg; |
344 | |
345 | log_debug("free client %p (%d references)" , c, c->references); |
346 | |
347 | if (!TAILQ_EMPTY(&c->queue)) |
348 | fatalx("queue not empty" ); |
349 | |
350 | if (c->references == 0) { |
351 | free((void *)c->name); |
352 | free(c); |
353 | } |
354 | } |
355 | |
356 | /* Suspend a client. */ |
357 | void |
358 | server_client_suspend(struct client *c) |
359 | { |
360 | struct session *s = c->session; |
361 | |
362 | if (s == NULL || (c->flags & CLIENT_DETACHING)) |
363 | return; |
364 | |
365 | tty_stop_tty(&c->tty); |
366 | c->flags |= CLIENT_SUSPENDED; |
367 | proc_send(c->peer, MSG_SUSPEND, -1, NULL, 0); |
368 | } |
369 | |
370 | /* Detach a client. */ |
371 | void |
372 | server_client_detach(struct client *c, enum msgtype msgtype) |
373 | { |
374 | struct session *s = c->session; |
375 | |
376 | if (s == NULL || (c->flags & CLIENT_DETACHING)) |
377 | return; |
378 | |
379 | c->flags |= CLIENT_DETACHING; |
380 | notify_client("client-detached" , c); |
381 | proc_send(c->peer, msgtype, -1, s->name, strlen(s->name) + 1); |
382 | } |
383 | |
384 | /* Execute command to replace a client. */ |
385 | void |
386 | server_client_exec(struct client *c, const char *cmd) |
387 | { |
388 | struct session *s = c->session; |
389 | char *msg; |
390 | const char *shell; |
391 | size_t cmdsize, shellsize; |
392 | |
393 | if (*cmd == '\0') |
394 | return; |
395 | cmdsize = strlen(cmd) + 1; |
396 | |
397 | if (s != NULL) |
398 | shell = options_get_string(s->options, "default-shell" ); |
399 | else |
400 | shell = options_get_string(global_s_options, "default-shell" ); |
401 | shellsize = strlen(shell) + 1; |
402 | |
403 | msg = xmalloc(cmdsize + shellsize); |
404 | memcpy(msg, cmd, cmdsize); |
405 | memcpy(msg + cmdsize, shell, shellsize); |
406 | |
407 | proc_send(c->peer, MSG_EXEC, -1, msg, cmdsize + shellsize); |
408 | free(msg); |
409 | } |
410 | |
411 | /* Check for mouse keys. */ |
412 | static key_code |
413 | server_client_check_mouse(struct client *c, struct key_event *event) |
414 | { |
415 | struct mouse_event *m = &event->m; |
416 | struct session *s = c->session; |
417 | struct winlink *wl; |
418 | struct window_pane *wp; |
419 | u_int x, y, b, sx, sy, px, py; |
420 | int flag; |
421 | key_code key; |
422 | struct timeval tv; |
423 | struct style_range *sr; |
424 | enum { NOTYPE, |
425 | MOVE, |
426 | DOWN, |
427 | UP, |
428 | DRAG, |
429 | WHEEL, |
430 | DOUBLE, |
431 | TRIPLE } type = NOTYPE; |
432 | enum { NOWHERE, |
433 | PANE, |
434 | STATUS, |
435 | STATUS_LEFT, |
436 | STATUS_RIGHT, |
437 | STATUS_DEFAULT, |
438 | BORDER } where = NOWHERE; |
439 | |
440 | log_debug("%s mouse %02x at %u,%u (last %u,%u) (%d)" , c->name, m->b, |
441 | m->x, m->y, m->lx, m->ly, c->tty.mouse_drag_flag); |
442 | |
443 | /* What type of event is this? */ |
444 | if ((m->sgr_type != ' ' && |
445 | MOUSE_DRAG(m->sgr_b) && |
446 | MOUSE_BUTTONS(m->sgr_b) == 3) || |
447 | (m->sgr_type == ' ' && |
448 | MOUSE_DRAG(m->b) && |
449 | MOUSE_BUTTONS(m->b) == 3 && |
450 | MOUSE_BUTTONS(m->lb) == 3)) { |
451 | type = MOVE; |
452 | x = m->x, y = m->y, b = 0; |
453 | log_debug("move at %u,%u" , x, y); |
454 | } else if (MOUSE_DRAG(m->b)) { |
455 | type = DRAG; |
456 | if (c->tty.mouse_drag_flag) { |
457 | x = m->x, y = m->y, b = m->b; |
458 | if (x == m->lx && y == m->ly) |
459 | return (KEYC_UNKNOWN); |
460 | log_debug("drag update at %u,%u" , x, y); |
461 | } else { |
462 | x = m->lx, y = m->ly, b = m->lb; |
463 | log_debug("drag start at %u,%u" , x, y); |
464 | } |
465 | } else if (MOUSE_WHEEL(m->b)) { |
466 | type = WHEEL; |
467 | x = m->x, y = m->y, b = m->b; |
468 | log_debug("wheel at %u,%u" , x, y); |
469 | } else if (MOUSE_RELEASE(m->b)) { |
470 | type = UP; |
471 | x = m->x, y = m->y, b = m->lb; |
472 | log_debug("up at %u,%u" , x, y); |
473 | } else { |
474 | if (c->flags & CLIENT_DOUBLECLICK) { |
475 | evtimer_del(&c->click_timer); |
476 | c->flags &= ~CLIENT_DOUBLECLICK; |
477 | if (m->b == c->click_button) { |
478 | type = DOUBLE; |
479 | x = m->x, y = m->y, b = m->b; |
480 | log_debug("double-click at %u,%u" , x, y); |
481 | flag = CLIENT_TRIPLECLICK; |
482 | goto add_timer; |
483 | } |
484 | } else if (c->flags & CLIENT_TRIPLECLICK) { |
485 | evtimer_del(&c->click_timer); |
486 | c->flags &= ~CLIENT_TRIPLECLICK; |
487 | if (m->b == c->click_button) { |
488 | type = TRIPLE; |
489 | x = m->x, y = m->y, b = m->b; |
490 | log_debug("triple-click at %u,%u" , x, y); |
491 | goto have_event; |
492 | } |
493 | } |
494 | |
495 | type = DOWN; |
496 | x = m->x, y = m->y, b = m->b; |
497 | log_debug("down at %u,%u" , x, y); |
498 | flag = CLIENT_DOUBLECLICK; |
499 | |
500 | add_timer: |
501 | if (KEYC_CLICK_TIMEOUT != 0) { |
502 | c->flags |= flag; |
503 | c->click_button = m->b; |
504 | |
505 | tv.tv_sec = KEYC_CLICK_TIMEOUT / 1000; |
506 | tv.tv_usec = (KEYC_CLICK_TIMEOUT % 1000) * 1000L; |
507 | evtimer_del(&c->click_timer); |
508 | evtimer_add(&c->click_timer, &tv); |
509 | } |
510 | } |
511 | |
512 | have_event: |
513 | if (type == NOTYPE) |
514 | return (KEYC_UNKNOWN); |
515 | |
516 | /* Save the session. */ |
517 | m->s = s->id; |
518 | m->w = -1; |
519 | |
520 | /* Is this on the status line? */ |
521 | m->statusat = status_at_line(c); |
522 | m->statuslines = status_line_size(c); |
523 | if (m->statusat != -1 && |
524 | y >= (u_int)m->statusat && |
525 | y < m->statusat + m->statuslines) { |
526 | sr = status_get_range(c, x, y - m->statusat); |
527 | if (sr == NULL) { |
528 | where = STATUS_DEFAULT; |
529 | } else { |
530 | switch (sr->type) { |
531 | case STYLE_RANGE_NONE: |
532 | return (KEYC_UNKNOWN); |
533 | case STYLE_RANGE_LEFT: |
534 | where = STATUS_LEFT; |
535 | break; |
536 | case STYLE_RANGE_RIGHT: |
537 | where = STATUS_RIGHT; |
538 | break; |
539 | case STYLE_RANGE_WINDOW: |
540 | wl = winlink_find_by_index(&s->windows, |
541 | sr->argument); |
542 | if (wl == NULL) |
543 | return (KEYC_UNKNOWN); |
544 | m->w = wl->window->id; |
545 | |
546 | where = STATUS; |
547 | break; |
548 | } |
549 | } |
550 | } |
551 | |
552 | /* Not on status line. Adjust position and check for border or pane. */ |
553 | if (where == NOWHERE) { |
554 | px = x; |
555 | if (m->statusat == 0 && y >= m->statuslines) |
556 | py = y - m->statuslines; |
557 | else if (m->statusat > 0 && y >= (u_int)m->statusat) |
558 | py = m->statusat - 1; |
559 | else |
560 | py = y; |
561 | |
562 | tty_window_offset(&c->tty, &m->ox, &m->oy, &sx, &sy); |
563 | log_debug("mouse window @%u at %u,%u (%ux%u)" , |
564 | s->curw->window->id, m->ox, m->oy, sx, sy); |
565 | if (px > sx || py > sy) |
566 | return (KEYC_UNKNOWN); |
567 | px = px + m->ox; |
568 | py = py + m->oy; |
569 | |
570 | /* Try the pane borders if not zoomed. */ |
571 | if (~s->curw->window->flags & WINDOW_ZOOMED) { |
572 | TAILQ_FOREACH(wp, &s->curw->window->panes, entry) { |
573 | if ((wp->xoff + wp->sx == px && |
574 | wp->yoff <= 1 + py && |
575 | wp->yoff + wp->sy >= py) || |
576 | (wp->yoff + wp->sy == py && |
577 | wp->xoff <= 1 + px && |
578 | wp->xoff + wp->sx >= px)) |
579 | break; |
580 | } |
581 | if (wp != NULL) |
582 | where = BORDER; |
583 | } |
584 | |
585 | /* Otherwise try inside the pane. */ |
586 | if (where == NOWHERE) { |
587 | wp = window_get_active_at(s->curw->window, px, py); |
588 | if (wp != NULL) |
589 | where = PANE; |
590 | } |
591 | |
592 | if (where == NOWHERE) |
593 | return (KEYC_UNKNOWN); |
594 | if (where == PANE) |
595 | log_debug("mouse %u,%u on pane %%%u" , x, y, wp->id); |
596 | else if (where == BORDER) |
597 | log_debug("mouse on pane %%%u border" , wp->id); |
598 | m->wp = wp->id; |
599 | m->w = wp->window->id; |
600 | } else |
601 | m->wp = -1; |
602 | |
603 | /* Stop dragging if needed. */ |
604 | if (type != DRAG && type != WHEEL && c->tty.mouse_drag_flag) { |
605 | if (c->tty.mouse_drag_release != NULL) |
606 | c->tty.mouse_drag_release(c, m); |
607 | |
608 | c->tty.mouse_drag_update = NULL; |
609 | c->tty.mouse_drag_release = NULL; |
610 | |
611 | /* |
612 | * End a mouse drag by passing a MouseDragEnd key corresponding |
613 | * to the button that started the drag. |
614 | */ |
615 | switch (c->tty.mouse_drag_flag) { |
616 | case 1: |
617 | if (where == PANE) |
618 | key = KEYC_MOUSEDRAGEND1_PANE; |
619 | if (where == STATUS) |
620 | key = KEYC_MOUSEDRAGEND1_STATUS; |
621 | if (where == STATUS_LEFT) |
622 | key = KEYC_MOUSEDRAGEND1_STATUS_LEFT; |
623 | if (where == STATUS_RIGHT) |
624 | key = KEYC_MOUSEDRAGEND1_STATUS_RIGHT; |
625 | if (where == STATUS_DEFAULT) |
626 | key = KEYC_MOUSEDRAGEND1_STATUS_DEFAULT; |
627 | if (where == BORDER) |
628 | key = KEYC_MOUSEDRAGEND1_BORDER; |
629 | break; |
630 | case 2: |
631 | if (where == PANE) |
632 | key = KEYC_MOUSEDRAGEND2_PANE; |
633 | if (where == STATUS) |
634 | key = KEYC_MOUSEDRAGEND2_STATUS; |
635 | if (where == STATUS_LEFT) |
636 | key = KEYC_MOUSEDRAGEND2_STATUS_LEFT; |
637 | if (where == STATUS_RIGHT) |
638 | key = KEYC_MOUSEDRAGEND2_STATUS_RIGHT; |
639 | if (where == STATUS_DEFAULT) |
640 | key = KEYC_MOUSEDRAGEND2_STATUS_DEFAULT; |
641 | if (where == BORDER) |
642 | key = KEYC_MOUSEDRAGEND2_BORDER; |
643 | break; |
644 | case 3: |
645 | if (where == PANE) |
646 | key = KEYC_MOUSEDRAGEND3_PANE; |
647 | if (where == STATUS) |
648 | key = KEYC_MOUSEDRAGEND3_STATUS; |
649 | if (where == STATUS_LEFT) |
650 | key = KEYC_MOUSEDRAGEND3_STATUS_LEFT; |
651 | if (where == STATUS_RIGHT) |
652 | key = KEYC_MOUSEDRAGEND3_STATUS_RIGHT; |
653 | if (where == STATUS_DEFAULT) |
654 | key = KEYC_MOUSEDRAGEND3_STATUS_DEFAULT; |
655 | if (where == BORDER) |
656 | key = KEYC_MOUSEDRAGEND3_BORDER; |
657 | break; |
658 | default: |
659 | key = KEYC_MOUSE; |
660 | break; |
661 | } |
662 | c->tty.mouse_drag_flag = 0; |
663 | goto out; |
664 | } |
665 | |
666 | /* Convert to a key binding. */ |
667 | key = KEYC_UNKNOWN; |
668 | switch (type) { |
669 | case NOTYPE: |
670 | break; |
671 | case MOVE: |
672 | if (where == PANE) |
673 | key = KEYC_MOUSEMOVE_PANE; |
674 | if (where == STATUS) |
675 | key = KEYC_MOUSEMOVE_STATUS; |
676 | if (where == STATUS_LEFT) |
677 | key = KEYC_MOUSEMOVE_STATUS_LEFT; |
678 | if (where == STATUS_RIGHT) |
679 | key = KEYC_MOUSEMOVE_STATUS_RIGHT; |
680 | if (where == STATUS_DEFAULT) |
681 | key = KEYC_MOUSEMOVE_STATUS_DEFAULT; |
682 | if (where == BORDER) |
683 | key = KEYC_MOUSEMOVE_BORDER; |
684 | break; |
685 | case DRAG: |
686 | if (c->tty.mouse_drag_update != NULL) |
687 | key = KEYC_DRAGGING; |
688 | else { |
689 | switch (MOUSE_BUTTONS(b)) { |
690 | case 0: |
691 | if (where == PANE) |
692 | key = KEYC_MOUSEDRAG1_PANE; |
693 | if (where == STATUS) |
694 | key = KEYC_MOUSEDRAG1_STATUS; |
695 | if (where == STATUS_LEFT) |
696 | key = KEYC_MOUSEDRAG1_STATUS_LEFT; |
697 | if (where == STATUS_RIGHT) |
698 | key = KEYC_MOUSEDRAG1_STATUS_RIGHT; |
699 | if (where == STATUS_DEFAULT) |
700 | key = KEYC_MOUSEDRAG1_STATUS_DEFAULT; |
701 | if (where == BORDER) |
702 | key = KEYC_MOUSEDRAG1_BORDER; |
703 | break; |
704 | case 1: |
705 | if (where == PANE) |
706 | key = KEYC_MOUSEDRAG2_PANE; |
707 | if (where == STATUS) |
708 | key = KEYC_MOUSEDRAG2_STATUS; |
709 | if (where == STATUS_LEFT) |
710 | key = KEYC_MOUSEDRAG2_STATUS_LEFT; |
711 | if (where == STATUS_RIGHT) |
712 | key = KEYC_MOUSEDRAG2_STATUS_RIGHT; |
713 | if (where == STATUS_DEFAULT) |
714 | key = KEYC_MOUSEDRAG2_STATUS_DEFAULT; |
715 | if (where == BORDER) |
716 | key = KEYC_MOUSEDRAG2_BORDER; |
717 | break; |
718 | case 2: |
719 | if (where == PANE) |
720 | key = KEYC_MOUSEDRAG3_PANE; |
721 | if (where == STATUS) |
722 | key = KEYC_MOUSEDRAG3_STATUS; |
723 | if (where == STATUS_LEFT) |
724 | key = KEYC_MOUSEDRAG3_STATUS_LEFT; |
725 | if (where == STATUS_RIGHT) |
726 | key = KEYC_MOUSEDRAG3_STATUS_RIGHT; |
727 | if (where == STATUS_DEFAULT) |
728 | key = KEYC_MOUSEDRAG3_STATUS_DEFAULT; |
729 | if (where == BORDER) |
730 | key = KEYC_MOUSEDRAG3_BORDER; |
731 | break; |
732 | } |
733 | } |
734 | |
735 | /* |
736 | * Begin a drag by setting the flag to a non-zero value that |
737 | * corresponds to the mouse button in use. |
738 | */ |
739 | c->tty.mouse_drag_flag = MOUSE_BUTTONS(b) + 1; |
740 | break; |
741 | case WHEEL: |
742 | if (MOUSE_BUTTONS(b) == MOUSE_WHEEL_UP) { |
743 | if (where == PANE) |
744 | key = KEYC_WHEELUP_PANE; |
745 | if (where == STATUS) |
746 | key = KEYC_WHEELUP_STATUS; |
747 | if (where == STATUS_LEFT) |
748 | key = KEYC_WHEELUP_STATUS_LEFT; |
749 | if (where == STATUS_RIGHT) |
750 | key = KEYC_WHEELUP_STATUS_RIGHT; |
751 | if (where == STATUS_DEFAULT) |
752 | key = KEYC_WHEELUP_STATUS_DEFAULT; |
753 | if (where == BORDER) |
754 | key = KEYC_WHEELUP_BORDER; |
755 | } else { |
756 | if (where == PANE) |
757 | key = KEYC_WHEELDOWN_PANE; |
758 | if (where == STATUS) |
759 | key = KEYC_WHEELDOWN_STATUS; |
760 | if (where == STATUS_LEFT) |
761 | key = KEYC_WHEELDOWN_STATUS_LEFT; |
762 | if (where == STATUS_RIGHT) |
763 | key = KEYC_WHEELDOWN_STATUS_RIGHT; |
764 | if (where == STATUS_DEFAULT) |
765 | key = KEYC_WHEELDOWN_STATUS_DEFAULT; |
766 | if (where == BORDER) |
767 | key = KEYC_WHEELDOWN_BORDER; |
768 | } |
769 | break; |
770 | case UP: |
771 | switch (MOUSE_BUTTONS(b)) { |
772 | case 0: |
773 | if (where == PANE) |
774 | key = KEYC_MOUSEUP1_PANE; |
775 | if (where == STATUS) |
776 | key = KEYC_MOUSEUP1_STATUS; |
777 | if (where == STATUS_LEFT) |
778 | key = KEYC_MOUSEUP1_STATUS_LEFT; |
779 | if (where == STATUS_RIGHT) |
780 | key = KEYC_MOUSEUP1_STATUS_RIGHT; |
781 | if (where == STATUS_DEFAULT) |
782 | key = KEYC_MOUSEUP1_STATUS_DEFAULT; |
783 | if (where == BORDER) |
784 | key = KEYC_MOUSEUP1_BORDER; |
785 | break; |
786 | case 1: |
787 | if (where == PANE) |
788 | key = KEYC_MOUSEUP2_PANE; |
789 | if (where == STATUS) |
790 | key = KEYC_MOUSEUP2_STATUS; |
791 | if (where == STATUS_LEFT) |
792 | key = KEYC_MOUSEUP2_STATUS_LEFT; |
793 | if (where == STATUS_RIGHT) |
794 | key = KEYC_MOUSEUP2_STATUS_RIGHT; |
795 | if (where == STATUS_DEFAULT) |
796 | key = KEYC_MOUSEUP2_STATUS_DEFAULT; |
797 | if (where == BORDER) |
798 | key = KEYC_MOUSEUP2_BORDER; |
799 | break; |
800 | case 2: |
801 | if (where == PANE) |
802 | key = KEYC_MOUSEUP3_PANE; |
803 | if (where == STATUS) |
804 | key = KEYC_MOUSEUP3_STATUS; |
805 | if (where == STATUS_LEFT) |
806 | key = KEYC_MOUSEUP3_STATUS_LEFT; |
807 | if (where == STATUS_RIGHT) |
808 | key = KEYC_MOUSEUP3_STATUS_RIGHT; |
809 | if (where == STATUS_DEFAULT) |
810 | key = KEYC_MOUSEUP3_STATUS_DEFAULT; |
811 | if (where == BORDER) |
812 | key = KEYC_MOUSEUP3_BORDER; |
813 | break; |
814 | } |
815 | break; |
816 | case DOWN: |
817 | switch (MOUSE_BUTTONS(b)) { |
818 | case 0: |
819 | if (where == PANE) |
820 | key = KEYC_MOUSEDOWN1_PANE; |
821 | if (where == STATUS) |
822 | key = KEYC_MOUSEDOWN1_STATUS; |
823 | if (where == STATUS_LEFT) |
824 | key = KEYC_MOUSEDOWN1_STATUS_LEFT; |
825 | if (where == STATUS_RIGHT) |
826 | key = KEYC_MOUSEDOWN1_STATUS_RIGHT; |
827 | if (where == STATUS_DEFAULT) |
828 | key = KEYC_MOUSEDOWN1_STATUS_DEFAULT; |
829 | if (where == BORDER) |
830 | key = KEYC_MOUSEDOWN1_BORDER; |
831 | break; |
832 | case 1: |
833 | if (where == PANE) |
834 | key = KEYC_MOUSEDOWN2_PANE; |
835 | if (where == STATUS) |
836 | key = KEYC_MOUSEDOWN2_STATUS; |
837 | if (where == STATUS_LEFT) |
838 | key = KEYC_MOUSEDOWN2_STATUS_LEFT; |
839 | if (where == STATUS_RIGHT) |
840 | key = KEYC_MOUSEDOWN2_STATUS_RIGHT; |
841 | if (where == STATUS_DEFAULT) |
842 | key = KEYC_MOUSEDOWN2_STATUS_DEFAULT; |
843 | if (where == BORDER) |
844 | key = KEYC_MOUSEDOWN2_BORDER; |
845 | break; |
846 | case 2: |
847 | if (where == PANE) |
848 | key = KEYC_MOUSEDOWN3_PANE; |
849 | if (where == STATUS) |
850 | key = KEYC_MOUSEDOWN3_STATUS; |
851 | if (where == STATUS_LEFT) |
852 | key = KEYC_MOUSEDOWN3_STATUS_LEFT; |
853 | if (where == STATUS_RIGHT) |
854 | key = KEYC_MOUSEDOWN3_STATUS_RIGHT; |
855 | if (where == STATUS_DEFAULT) |
856 | key = KEYC_MOUSEDOWN3_STATUS_DEFAULT; |
857 | if (where == BORDER) |
858 | key = KEYC_MOUSEDOWN3_BORDER; |
859 | break; |
860 | } |
861 | break; |
862 | case DOUBLE: |
863 | switch (MOUSE_BUTTONS(b)) { |
864 | case 0: |
865 | if (where == PANE) |
866 | key = KEYC_DOUBLECLICK1_PANE; |
867 | if (where == STATUS) |
868 | key = KEYC_DOUBLECLICK1_STATUS; |
869 | if (where == STATUS_LEFT) |
870 | key = KEYC_DOUBLECLICK1_STATUS_LEFT; |
871 | if (where == STATUS_RIGHT) |
872 | key = KEYC_DOUBLECLICK1_STATUS_RIGHT; |
873 | if (where == STATUS_DEFAULT) |
874 | key = KEYC_DOUBLECLICK1_STATUS_DEFAULT; |
875 | if (where == BORDER) |
876 | key = KEYC_DOUBLECLICK1_BORDER; |
877 | break; |
878 | case 1: |
879 | if (where == PANE) |
880 | key = KEYC_DOUBLECLICK2_PANE; |
881 | if (where == STATUS) |
882 | key = KEYC_DOUBLECLICK2_STATUS; |
883 | if (where == STATUS_LEFT) |
884 | key = KEYC_DOUBLECLICK2_STATUS_LEFT; |
885 | if (where == STATUS_RIGHT) |
886 | key = KEYC_DOUBLECLICK2_STATUS_RIGHT; |
887 | if (where == STATUS_DEFAULT) |
888 | key = KEYC_DOUBLECLICK2_STATUS_DEFAULT; |
889 | if (where == BORDER) |
890 | key = KEYC_DOUBLECLICK2_BORDER; |
891 | break; |
892 | case 2: |
893 | if (where == PANE) |
894 | key = KEYC_DOUBLECLICK3_PANE; |
895 | if (where == STATUS) |
896 | key = KEYC_DOUBLECLICK3_STATUS; |
897 | if (where == STATUS_LEFT) |
898 | key = KEYC_DOUBLECLICK3_STATUS_LEFT; |
899 | if (where == STATUS_RIGHT) |
900 | key = KEYC_DOUBLECLICK3_STATUS_RIGHT; |
901 | if (where == STATUS_DEFAULT) |
902 | key = KEYC_DOUBLECLICK3_STATUS_DEFAULT; |
903 | if (where == BORDER) |
904 | key = KEYC_DOUBLECLICK3_BORDER; |
905 | break; |
906 | } |
907 | break; |
908 | case TRIPLE: |
909 | switch (MOUSE_BUTTONS(b)) { |
910 | case 0: |
911 | if (where == PANE) |
912 | key = KEYC_TRIPLECLICK1_PANE; |
913 | if (where == STATUS) |
914 | key = KEYC_TRIPLECLICK1_STATUS; |
915 | if (where == STATUS_LEFT) |
916 | key = KEYC_TRIPLECLICK1_STATUS_LEFT; |
917 | if (where == STATUS_RIGHT) |
918 | key = KEYC_TRIPLECLICK1_STATUS_RIGHT; |
919 | if (where == STATUS_DEFAULT) |
920 | key = KEYC_TRIPLECLICK1_STATUS_DEFAULT; |
921 | if (where == BORDER) |
922 | key = KEYC_TRIPLECLICK1_BORDER; |
923 | break; |
924 | case 1: |
925 | if (where == PANE) |
926 | key = KEYC_TRIPLECLICK2_PANE; |
927 | if (where == STATUS) |
928 | key = KEYC_TRIPLECLICK2_STATUS; |
929 | if (where == STATUS_LEFT) |
930 | key = KEYC_TRIPLECLICK2_STATUS_LEFT; |
931 | if (where == STATUS_RIGHT) |
932 | key = KEYC_TRIPLECLICK2_STATUS_RIGHT; |
933 | if (where == STATUS_DEFAULT) |
934 | key = KEYC_TRIPLECLICK2_STATUS_DEFAULT; |
935 | if (where == BORDER) |
936 | key = KEYC_TRIPLECLICK2_BORDER; |
937 | break; |
938 | case 2: |
939 | if (where == PANE) |
940 | key = KEYC_TRIPLECLICK3_PANE; |
941 | if (where == STATUS) |
942 | key = KEYC_TRIPLECLICK3_STATUS; |
943 | if (where == STATUS_LEFT) |
944 | key = KEYC_TRIPLECLICK3_STATUS_LEFT; |
945 | if (where == STATUS_RIGHT) |
946 | key = KEYC_TRIPLECLICK3_STATUS_RIGHT; |
947 | if (where == STATUS_DEFAULT) |
948 | key = KEYC_TRIPLECLICK3_STATUS_DEFAULT; |
949 | if (where == BORDER) |
950 | key = KEYC_TRIPLECLICK3_BORDER; |
951 | break; |
952 | } |
953 | break; |
954 | } |
955 | if (key == KEYC_UNKNOWN) |
956 | return (KEYC_UNKNOWN); |
957 | |
958 | out: |
959 | /* Apply modifiers if any. */ |
960 | if (b & MOUSE_MASK_META) |
961 | key |= KEYC_ESCAPE; |
962 | if (b & MOUSE_MASK_CTRL) |
963 | key |= KEYC_CTRL; |
964 | if (b & MOUSE_MASK_SHIFT) |
965 | key |= KEYC_SHIFT; |
966 | |
967 | if (log_get_level() != 0) |
968 | log_debug("mouse key is %s" , key_string_lookup_key (key)); |
969 | return (key); |
970 | } |
971 | |
972 | /* Is this fast enough to probably be a paste? */ |
973 | static int |
974 | server_client_assume_paste(struct session *s) |
975 | { |
976 | struct timeval tv; |
977 | int t; |
978 | |
979 | if ((t = options_get_number(s->options, "assume-paste-time" )) == 0) |
980 | return (0); |
981 | |
982 | timersub(&s->activity_time, &s->last_activity_time, &tv); |
983 | if (tv.tv_sec == 0 && tv.tv_usec < t * 1000) { |
984 | log_debug("session %s pasting (flag %d)" , s->name, |
985 | !!(s->flags & SESSION_PASTING)); |
986 | if (s->flags & SESSION_PASTING) |
987 | return (1); |
988 | s->flags |= SESSION_PASTING; |
989 | return (0); |
990 | } |
991 | log_debug("session %s not pasting" , s->name); |
992 | s->flags &= ~SESSION_PASTING; |
993 | return (0); |
994 | } |
995 | |
996 | /* Has the latest client changed? */ |
997 | static void |
998 | server_client_update_latest(struct client *c) |
999 | { |
1000 | struct window *w; |
1001 | |
1002 | if (c->session == NULL) |
1003 | return; |
1004 | w = c->session->curw->window; |
1005 | |
1006 | if (w->latest == c) |
1007 | return; |
1008 | w->latest = c; |
1009 | |
1010 | if (options_get_number(w->options, "window-size" ) == WINDOW_SIZE_LATEST) |
1011 | recalculate_size(w); |
1012 | } |
1013 | |
1014 | /* |
1015 | * Handle data key input from client. This owns and can modify the key event it |
1016 | * is given and is responsible for freeing it. |
1017 | */ |
1018 | static enum cmd_retval |
1019 | server_client_key_callback(struct cmdq_item *item, void *data) |
1020 | { |
1021 | struct client *c = item->client; |
1022 | struct key_event *event = data; |
1023 | key_code key = event->key; |
1024 | struct mouse_event *m = &event->m; |
1025 | struct session *s = c->session; |
1026 | struct winlink *wl; |
1027 | struct window_pane *wp; |
1028 | struct window_mode_entry *wme; |
1029 | struct timeval tv; |
1030 | struct key_table *table, *first; |
1031 | struct key_binding *bd; |
1032 | int xtimeout, flags; |
1033 | struct cmd_find_state fs; |
1034 | key_code key0; |
1035 | |
1036 | /* Check the client is good to accept input. */ |
1037 | if (s == NULL || (c->flags & CLIENT_UNATTACHEDFLAGS)) |
1038 | goto out; |
1039 | wl = s->curw; |
1040 | |
1041 | /* Update the activity timer. */ |
1042 | if (gettimeofday(&c->activity_time, NULL) != 0) |
1043 | fatal("gettimeofday failed" ); |
1044 | session_update_activity(s, &c->activity_time); |
1045 | |
1046 | /* Check for mouse keys. */ |
1047 | m->valid = 0; |
1048 | if (key == KEYC_MOUSE) { |
1049 | if (c->flags & CLIENT_READONLY) |
1050 | goto out; |
1051 | key = server_client_check_mouse(c, event); |
1052 | if (key == KEYC_UNKNOWN) |
1053 | goto out; |
1054 | |
1055 | m->valid = 1; |
1056 | m->key = key; |
1057 | |
1058 | /* |
1059 | * Mouse drag is in progress, so fire the callback (now that |
1060 | * the mouse event is valid). |
1061 | */ |
1062 | if ((key & KEYC_MASK_KEY) == KEYC_DRAGGING) { |
1063 | c->tty.mouse_drag_update(c, m); |
1064 | goto out; |
1065 | } |
1066 | } |
1067 | |
1068 | /* Find affected pane. */ |
1069 | if (!KEYC_IS_MOUSE(key) || cmd_find_from_mouse(&fs, m, 0) != 0) |
1070 | cmd_find_from_session(&fs, s, 0); |
1071 | wp = fs.wp; |
1072 | |
1073 | /* Forward mouse keys if disabled. */ |
1074 | if (KEYC_IS_MOUSE(key) && !options_get_number(s->options, "mouse" )) |
1075 | goto forward_key; |
1076 | |
1077 | /* Treat everything as a regular key when pasting is detected. */ |
1078 | if (!KEYC_IS_MOUSE(key) && server_client_assume_paste(s)) |
1079 | goto forward_key; |
1080 | |
1081 | /* |
1082 | * Work out the current key table. If the pane is in a mode, use |
1083 | * the mode table instead of the default key table. |
1084 | */ |
1085 | if (server_client_is_default_key_table(c, c->keytable) && |
1086 | wp != NULL && |
1087 | (wme = TAILQ_FIRST(&wp->modes)) != NULL && |
1088 | wme->mode->key_table != NULL) |
1089 | table = key_bindings_get_table(wme->mode->key_table(wme), 1); |
1090 | else |
1091 | table = c->keytable; |
1092 | first = table; |
1093 | |
1094 | table_changed: |
1095 | /* |
1096 | * The prefix always takes precedence and forces a switch to the prefix |
1097 | * table, unless we are already there. |
1098 | */ |
1099 | key0 = (key & ~KEYC_XTERM); |
1100 | if ((key0 == (key_code)options_get_number(s->options, "prefix" ) || |
1101 | key0 == (key_code)options_get_number(s->options, "prefix2" )) && |
1102 | strcmp(table->name, "prefix" ) != 0) { |
1103 | server_client_set_key_table(c, "prefix" ); |
1104 | server_status_client(c); |
1105 | goto out; |
1106 | } |
1107 | flags = c->flags; |
1108 | |
1109 | try_again: |
1110 | /* Log key table. */ |
1111 | if (wp == NULL) |
1112 | log_debug("key table %s (no pane)" , table->name); |
1113 | else |
1114 | log_debug("key table %s (pane %%%u)" , table->name, wp->id); |
1115 | if (c->flags & CLIENT_REPEAT) |
1116 | log_debug("currently repeating" ); |
1117 | |
1118 | /* Try to see if there is a key binding in the current table. */ |
1119 | bd = key_bindings_get(table, key0); |
1120 | if (bd != NULL) { |
1121 | /* |
1122 | * Key was matched in this table. If currently repeating but a |
1123 | * non-repeating binding was found, stop repeating and try |
1124 | * again in the root table. |
1125 | */ |
1126 | if ((c->flags & CLIENT_REPEAT) && |
1127 | (~bd->flags & KEY_BINDING_REPEAT)) { |
1128 | log_debug("found in key table %s (not repeating)" , |
1129 | table->name); |
1130 | server_client_set_key_table(c, NULL); |
1131 | first = table = c->keytable; |
1132 | c->flags &= ~CLIENT_REPEAT; |
1133 | server_status_client(c); |
1134 | goto table_changed; |
1135 | } |
1136 | log_debug("found in key table %s" , table->name); |
1137 | |
1138 | /* |
1139 | * Take a reference to this table to make sure the key binding |
1140 | * doesn't disappear. |
1141 | */ |
1142 | table->references++; |
1143 | |
1144 | /* |
1145 | * If this is a repeating key, start the timer. Otherwise reset |
1146 | * the client back to the root table. |
1147 | */ |
1148 | xtimeout = options_get_number(s->options, "repeat-time" ); |
1149 | if (xtimeout != 0 && (bd->flags & KEY_BINDING_REPEAT)) { |
1150 | c->flags |= CLIENT_REPEAT; |
1151 | |
1152 | tv.tv_sec = xtimeout / 1000; |
1153 | tv.tv_usec = (xtimeout % 1000) * 1000L; |
1154 | evtimer_del(&c->repeat_timer); |
1155 | evtimer_add(&c->repeat_timer, &tv); |
1156 | } else { |
1157 | c->flags &= ~CLIENT_REPEAT; |
1158 | server_client_set_key_table(c, NULL); |
1159 | } |
1160 | server_status_client(c); |
1161 | |
1162 | /* Execute the key binding. */ |
1163 | key_bindings_dispatch(bd, item, c, m, &fs); |
1164 | key_bindings_unref_table(table); |
1165 | goto out; |
1166 | } |
1167 | |
1168 | /* |
1169 | * No match, try the ANY key. |
1170 | */ |
1171 | if (key0 != KEYC_ANY) { |
1172 | key0 = KEYC_ANY; |
1173 | goto try_again; |
1174 | } |
1175 | |
1176 | /* |
1177 | * No match in this table. If not in the root table or if repeating, |
1178 | * switch the client back to the root table and try again. |
1179 | */ |
1180 | log_debug("not found in key table %s" , table->name); |
1181 | if (!server_client_is_default_key_table(c, table) || |
1182 | (c->flags & CLIENT_REPEAT)) { |
1183 | log_debug("trying in root table" ); |
1184 | server_client_set_key_table(c, NULL); |
1185 | table = c->keytable; |
1186 | if (c->flags & CLIENT_REPEAT) |
1187 | first = table; |
1188 | c->flags &= ~CLIENT_REPEAT; |
1189 | server_status_client(c); |
1190 | goto table_changed; |
1191 | } |
1192 | |
1193 | /* |
1194 | * No match in the root table either. If this wasn't the first table |
1195 | * tried, don't pass the key to the pane. |
1196 | */ |
1197 | if (first != table && (~flags & CLIENT_REPEAT)) { |
1198 | server_client_set_key_table(c, NULL); |
1199 | server_status_client(c); |
1200 | goto out; |
1201 | } |
1202 | |
1203 | forward_key: |
1204 | if (c->flags & CLIENT_READONLY) |
1205 | goto out; |
1206 | if (wp != NULL) |
1207 | window_pane_key(wp, c, s, wl, key, m); |
1208 | |
1209 | out: |
1210 | if (s != NULL) |
1211 | server_client_update_latest(c); |
1212 | free(event); |
1213 | return (CMD_RETURN_NORMAL); |
1214 | } |
1215 | |
1216 | /* Handle a key event. */ |
1217 | int |
1218 | server_client_handle_key(struct client *c, struct key_event *event) |
1219 | { |
1220 | struct session *s = c->session; |
1221 | struct cmdq_item *item; |
1222 | |
1223 | /* Check the client is good to accept input. */ |
1224 | if (s == NULL || (c->flags & CLIENT_UNATTACHEDFLAGS)) |
1225 | return (0); |
1226 | |
1227 | /* |
1228 | * Key presses in overlay mode and the command prompt are a special |
1229 | * case. The queue might be blocked so they need to be processed |
1230 | * immediately rather than queued. |
1231 | */ |
1232 | if (~c->flags & CLIENT_READONLY) { |
1233 | status_message_clear(c); |
1234 | if (c->prompt_string != NULL) { |
1235 | if (status_prompt_key(c, event->key) == 0) |
1236 | return (0); |
1237 | } |
1238 | if (c->overlay_key != NULL) { |
1239 | switch (c->overlay_key(c, event)) { |
1240 | case 0: |
1241 | return (0); |
1242 | case 1: |
1243 | server_client_clear_overlay(c); |
1244 | return (0); |
1245 | } |
1246 | } |
1247 | server_client_clear_overlay(c); |
1248 | } |
1249 | |
1250 | /* |
1251 | * Add the key to the queue so it happens after any commands queued by |
1252 | * previous keys. |
1253 | */ |
1254 | item = cmdq_get_callback(server_client_key_callback, event); |
1255 | cmdq_append(c, item); |
1256 | return (1); |
1257 | } |
1258 | |
1259 | /* Client functions that need to happen every loop. */ |
1260 | void |
1261 | server_client_loop(void) |
1262 | { |
1263 | struct client *c; |
1264 | struct window *w; |
1265 | struct window_pane *wp; |
1266 | struct winlink *wl; |
1267 | struct session *s; |
1268 | int focus, attached, resize; |
1269 | |
1270 | TAILQ_FOREACH(c, &clients, entry) { |
1271 | server_client_check_exit(c); |
1272 | if (c->session != NULL) { |
1273 | server_client_check_redraw(c); |
1274 | server_client_reset_state(c); |
1275 | } |
1276 | } |
1277 | |
1278 | /* |
1279 | * Any windows will have been redrawn as part of clients, so clear |
1280 | * their flags now. Also check pane focus and resize. |
1281 | * |
1282 | * As an optimization, panes in windows that are in an attached session |
1283 | * but not the current window are not resized (this reduces the amount |
1284 | * of work needed when, for example, resizing an X terminal a |
1285 | * lot). Windows in no attached session are resized immediately since |
1286 | * that is likely to have come from a command like split-window and be |
1287 | * what the user wanted. |
1288 | */ |
1289 | focus = options_get_number(global_options, "focus-events" ); |
1290 | RB_FOREACH(w, windows, &windows) { |
1291 | attached = resize = 0; |
1292 | TAILQ_FOREACH(wl, &w->winlinks, wentry) { |
1293 | s = wl->session; |
1294 | if (s->attached != 0) |
1295 | attached = 1; |
1296 | if (s->attached != 0 && s->curw == wl) { |
1297 | resize = 1; |
1298 | break; |
1299 | } |
1300 | } |
1301 | if (!attached) |
1302 | resize = 1; |
1303 | TAILQ_FOREACH(wp, &w->panes, entry) { |
1304 | if (wp->fd != -1) { |
1305 | if (focus) |
1306 | server_client_check_focus(wp); |
1307 | if (resize) |
1308 | server_client_check_resize(wp); |
1309 | } |
1310 | wp->flags &= ~PANE_REDRAW; |
1311 | } |
1312 | check_window_name(w); |
1313 | } |
1314 | } |
1315 | |
1316 | /* Check if we need to force a resize. */ |
1317 | static int |
1318 | server_client_resize_force(struct window_pane *wp) |
1319 | { |
1320 | struct timeval tv = { .tv_usec = 100000 }; |
1321 | |
1322 | /* |
1323 | * If we are resizing to the same size as when we entered the loop |
1324 | * (that is, to the same size the application currently thinks it is), |
1325 | * tmux may have gone through several resizes internally and thrown |
1326 | * away parts of the screen. So we need the application to actually |
1327 | * redraw even though its final size has not changed. |
1328 | */ |
1329 | |
1330 | if (wp->flags & PANE_RESIZEFORCE) { |
1331 | wp->flags &= ~PANE_RESIZEFORCE; |
1332 | return (0); |
1333 | } |
1334 | |
1335 | if (wp->sx != wp->osx || |
1336 | wp->sy != wp->osy || |
1337 | wp->sx <= 1 || |
1338 | wp->sy <= 1) |
1339 | return (0); |
1340 | |
1341 | log_debug("%s: %%%u forcing resize" , __func__, wp->id); |
1342 | window_pane_send_resize(wp, -1); |
1343 | |
1344 | evtimer_add(&wp->resize_timer, &tv); |
1345 | wp->flags |= PANE_RESIZEFORCE; |
1346 | return (1); |
1347 | } |
1348 | |
1349 | /* Resize a pane. */ |
1350 | static void |
1351 | server_client_resize_pane(struct window_pane *wp) |
1352 | { |
1353 | log_debug("%s: %%%u resize to %u,%u" , __func__, wp->id, wp->sx, wp->sy); |
1354 | window_pane_send_resize(wp, 0); |
1355 | |
1356 | wp->flags &= ~PANE_RESIZE; |
1357 | |
1358 | wp->osx = wp->sx; |
1359 | wp->osy = wp->sy; |
1360 | } |
1361 | |
1362 | /* Start the resize timer. */ |
1363 | static void |
1364 | server_client_start_resize_timer(struct window_pane *wp) |
1365 | { |
1366 | struct timeval tv = { .tv_usec = 250000 }; |
1367 | |
1368 | if (!evtimer_pending(&wp->resize_timer, NULL)) |
1369 | evtimer_add(&wp->resize_timer, &tv); |
1370 | } |
1371 | |
1372 | /* Resize timer event. */ |
1373 | static void |
1374 | server_client_resize_event(__unused int fd, __unused short events, void *data) |
1375 | { |
1376 | struct window_pane *wp = data; |
1377 | |
1378 | evtimer_del(&wp->resize_timer); |
1379 | |
1380 | if (~wp->flags & PANE_RESIZE) |
1381 | return; |
1382 | log_debug("%s: %%%u timer fired (was%s resized)" , __func__, wp->id, |
1383 | (wp->flags & PANE_RESIZED) ? "" : " not" ); |
1384 | |
1385 | if (wp->saved_grid == NULL && (wp->flags & PANE_RESIZED)) { |
1386 | log_debug("%s: %%%u deferring timer" , __func__, wp->id); |
1387 | server_client_start_resize_timer(wp); |
1388 | } else if (!server_client_resize_force(wp)) { |
1389 | log_debug("%s: %%%u resizing pane" , __func__, wp->id); |
1390 | server_client_resize_pane(wp); |
1391 | } |
1392 | wp->flags &= ~PANE_RESIZED; |
1393 | } |
1394 | |
1395 | /* Check if pane should be resized. */ |
1396 | static void |
1397 | server_client_check_resize(struct window_pane *wp) |
1398 | { |
1399 | if (~wp->flags & PANE_RESIZE) |
1400 | return; |
1401 | |
1402 | if (!event_initialized(&wp->resize_timer)) |
1403 | evtimer_set(&wp->resize_timer, server_client_resize_event, wp); |
1404 | |
1405 | if (!evtimer_pending(&wp->resize_timer, NULL)) { |
1406 | log_debug("%s: %%%u starting timer" , __func__, wp->id); |
1407 | server_client_resize_pane(wp); |
1408 | server_client_start_resize_timer(wp); |
1409 | } else |
1410 | log_debug("%s: %%%u timer running" , __func__, wp->id); |
1411 | } |
1412 | |
1413 | /* Check whether pane should be focused. */ |
1414 | static void |
1415 | server_client_check_focus(struct window_pane *wp) |
1416 | { |
1417 | struct client *c; |
1418 | int push; |
1419 | |
1420 | /* Do we need to push the focus state? */ |
1421 | push = wp->flags & PANE_FOCUSPUSH; |
1422 | wp->flags &= ~PANE_FOCUSPUSH; |
1423 | |
1424 | /* If we're not the active pane in our window, we're not focused. */ |
1425 | if (wp->window->active != wp) |
1426 | goto not_focused; |
1427 | |
1428 | /* If we're in a mode, we're not focused. */ |
1429 | if (wp->screen != &wp->base) |
1430 | goto not_focused; |
1431 | |
1432 | /* |
1433 | * If our window is the current window in any focused clients with an |
1434 | * attached session, we're focused. |
1435 | */ |
1436 | TAILQ_FOREACH(c, &clients, entry) { |
1437 | if (c->session == NULL || !(c->flags & CLIENT_FOCUSED)) |
1438 | continue; |
1439 | if (c->session->attached == 0) |
1440 | continue; |
1441 | |
1442 | if (c->session->curw->window == wp->window) |
1443 | goto focused; |
1444 | } |
1445 | |
1446 | not_focused: |
1447 | if (push || (wp->flags & PANE_FOCUSED)) { |
1448 | if (wp->base.mode & MODE_FOCUSON) |
1449 | bufferevent_write(wp->event, "\033[O" , 3); |
1450 | notify_pane("pane-focus-out" , wp); |
1451 | } |
1452 | wp->flags &= ~PANE_FOCUSED; |
1453 | return; |
1454 | |
1455 | focused: |
1456 | if (push || !(wp->flags & PANE_FOCUSED)) { |
1457 | if (wp->base.mode & MODE_FOCUSON) |
1458 | bufferevent_write(wp->event, "\033[I" , 3); |
1459 | notify_pane("pane-focus-in" , wp); |
1460 | session_update_activity(c->session, NULL); |
1461 | } |
1462 | wp->flags |= PANE_FOCUSED; |
1463 | } |
1464 | |
1465 | /* |
1466 | * Update cursor position and mode settings. The scroll region and attributes |
1467 | * are cleared when idle (waiting for an event) as this is the most likely time |
1468 | * a user may interrupt tmux, for example with ~^Z in ssh(1). This is a |
1469 | * compromise between excessive resets and likelihood of an interrupt. |
1470 | * |
1471 | * tty_region/tty_reset/tty_update_mode already take care of not resetting |
1472 | * things that are already in their default state. |
1473 | */ |
1474 | static void |
1475 | server_client_reset_state(struct client *c) |
1476 | { |
1477 | struct window *w = c->session->curw->window; |
1478 | struct window_pane *wp = w->active, *loop; |
1479 | struct screen *s = wp->screen; |
1480 | struct options *oo = c->session->options; |
1481 | int mode, cursor = 0; |
1482 | u_int cx = 0, cy = 0, ox, oy, sx, sy; |
1483 | |
1484 | if (c->flags & (CLIENT_CONTROL|CLIENT_SUSPENDED)) |
1485 | return; |
1486 | if (c->overlay_draw != NULL) |
1487 | return; |
1488 | mode = s->mode; |
1489 | |
1490 | tty_region_off(&c->tty); |
1491 | tty_margin_off(&c->tty); |
1492 | |
1493 | /* Move cursor to pane cursor and offset. */ |
1494 | cursor = 0; |
1495 | tty_window_offset(&c->tty, &ox, &oy, &sx, &sy); |
1496 | if (wp->xoff + s->cx >= ox && wp->xoff + s->cx <= ox + sx && |
1497 | wp->yoff + s->cy >= oy && wp->yoff + s->cy <= oy + sy) { |
1498 | cursor = 1; |
1499 | |
1500 | cx = wp->xoff + s->cx - ox; |
1501 | cy = wp->yoff + s->cy - oy; |
1502 | |
1503 | if (status_at_line(c) == 0) |
1504 | cy += status_line_size(c); |
1505 | } |
1506 | if (!cursor) |
1507 | mode &= ~MODE_CURSOR; |
1508 | tty_cursor(&c->tty, cx, cy); |
1509 | |
1510 | /* |
1511 | * Set mouse mode if requested. To support dragging, always use button |
1512 | * mode. |
1513 | */ |
1514 | if (options_get_number(oo, "mouse" )) { |
1515 | mode &= ~ALL_MOUSE_MODES; |
1516 | TAILQ_FOREACH(loop, &w->panes, entry) { |
1517 | if (loop->screen->mode & MODE_MOUSE_ALL) |
1518 | mode |= MODE_MOUSE_ALL; |
1519 | } |
1520 | if (~mode & MODE_MOUSE_ALL) |
1521 | mode |= MODE_MOUSE_BUTTON; |
1522 | } |
1523 | |
1524 | /* Clear bracketed paste mode if at the prompt. */ |
1525 | if (c->prompt_string != NULL) |
1526 | mode &= ~MODE_BRACKETPASTE; |
1527 | |
1528 | /* Set the terminal mode and reset attributes. */ |
1529 | tty_update_mode(&c->tty, mode, s); |
1530 | tty_reset(&c->tty); |
1531 | } |
1532 | |
1533 | /* Repeat time callback. */ |
1534 | static void |
1535 | server_client_repeat_timer(__unused int fd, __unused short events, void *data) |
1536 | { |
1537 | struct client *c = data; |
1538 | |
1539 | if (c->flags & CLIENT_REPEAT) { |
1540 | server_client_set_key_table(c, NULL); |
1541 | c->flags &= ~CLIENT_REPEAT; |
1542 | server_status_client(c); |
1543 | } |
1544 | } |
1545 | |
1546 | /* Double-click callback. */ |
1547 | static void |
1548 | server_client_click_timer(__unused int fd, __unused short events, void *data) |
1549 | { |
1550 | struct client *c = data; |
1551 | |
1552 | c->flags &= ~(CLIENT_DOUBLECLICK|CLIENT_TRIPLECLICK); |
1553 | } |
1554 | |
1555 | /* Check if client should be exited. */ |
1556 | static void |
1557 | server_client_check_exit(struct client *c) |
1558 | { |
1559 | struct client_file *cf; |
1560 | |
1561 | if (~c->flags & CLIENT_EXIT) |
1562 | return; |
1563 | if (c->flags & CLIENT_EXITED) |
1564 | return; |
1565 | |
1566 | RB_FOREACH(cf, client_files, &c->files) { |
1567 | if (EVBUFFER_LENGTH(cf->buffer) != 0) |
1568 | return; |
1569 | } |
1570 | |
1571 | if (c->flags & CLIENT_ATTACHED) |
1572 | notify_client("client-detached" , c); |
1573 | proc_send(c->peer, MSG_EXIT, -1, &c->retval, sizeof c->retval); |
1574 | c->flags |= CLIENT_EXITED; |
1575 | } |
1576 | |
1577 | /* Redraw timer callback. */ |
1578 | static void |
1579 | server_client_redraw_timer(__unused int fd, __unused short events, |
1580 | __unused void *data) |
1581 | { |
1582 | log_debug("redraw timer fired" ); |
1583 | } |
1584 | |
1585 | /* Check for client redraws. */ |
1586 | static void |
1587 | server_client_check_redraw(struct client *c) |
1588 | { |
1589 | struct session *s = c->session; |
1590 | struct tty *tty = &c->tty; |
1591 | struct window_pane *wp; |
1592 | int needed, flags; |
1593 | struct timeval tv = { .tv_usec = 1000 }; |
1594 | static struct event ev; |
1595 | size_t left; |
1596 | |
1597 | if (c->flags & (CLIENT_CONTROL|CLIENT_SUSPENDED)) |
1598 | return; |
1599 | if (c->flags & CLIENT_ALLREDRAWFLAGS) { |
1600 | log_debug("%s: redraw%s%s%s%s" , c->name, |
1601 | (c->flags & CLIENT_REDRAWWINDOW) ? " window" : "" , |
1602 | (c->flags & CLIENT_REDRAWSTATUS) ? " status" : "" , |
1603 | (c->flags & CLIENT_REDRAWBORDERS) ? " borders" : "" , |
1604 | (c->flags & CLIENT_REDRAWOVERLAY) ? " overlay" : "" ); |
1605 | } |
1606 | |
1607 | /* |
1608 | * If there is outstanding data, defer the redraw until it has been |
1609 | * consumed. We can just add a timer to get out of the event loop and |
1610 | * end up back here. |
1611 | */ |
1612 | needed = 0; |
1613 | if (c->flags & CLIENT_ALLREDRAWFLAGS) |
1614 | needed = 1; |
1615 | else { |
1616 | TAILQ_FOREACH(wp, &c->session->curw->window->panes, entry) { |
1617 | if (wp->flags & PANE_REDRAW) { |
1618 | needed = 1; |
1619 | break; |
1620 | } |
1621 | } |
1622 | } |
1623 | if (needed && (left = EVBUFFER_LENGTH(tty->out)) != 0) { |
1624 | log_debug("%s: redraw deferred (%zu left)" , c->name, left); |
1625 | if (!evtimer_initialized(&ev)) |
1626 | evtimer_set(&ev, server_client_redraw_timer, NULL); |
1627 | if (!evtimer_pending(&ev, NULL)) { |
1628 | log_debug("redraw timer started" ); |
1629 | evtimer_add(&ev, &tv); |
1630 | } |
1631 | |
1632 | /* |
1633 | * We may have got here for a single pane redraw, but force a |
1634 | * full redraw next time in case other panes have been updated. |
1635 | */ |
1636 | c->flags |= CLIENT_ALLREDRAWFLAGS; |
1637 | return; |
1638 | } else if (needed) |
1639 | log_debug("%s: redraw needed" , c->name); |
1640 | |
1641 | flags = tty->flags & (TTY_BLOCK|TTY_FREEZE|TTY_NOCURSOR); |
1642 | tty->flags = (tty->flags & ~(TTY_BLOCK|TTY_FREEZE)) | TTY_NOCURSOR; |
1643 | |
1644 | if (~c->flags & CLIENT_REDRAWWINDOW) { |
1645 | /* |
1646 | * If not redrawing the entire window, check whether each pane |
1647 | * needs to be redrawn. |
1648 | */ |
1649 | TAILQ_FOREACH(wp, &c->session->curw->window->panes, entry) { |
1650 | if (wp->flags & PANE_REDRAW) { |
1651 | tty_update_mode(tty, tty->mode, NULL); |
1652 | screen_redraw_pane(c, wp); |
1653 | } |
1654 | } |
1655 | } |
1656 | |
1657 | if (c->flags & CLIENT_ALLREDRAWFLAGS) { |
1658 | if (options_get_number(s->options, "set-titles" )) |
1659 | server_client_set_title(c); |
1660 | screen_redraw_screen(c); |
1661 | } |
1662 | |
1663 | tty->flags = (tty->flags & ~(TTY_FREEZE|TTY_NOCURSOR)) | flags; |
1664 | tty_update_mode(tty, tty->mode, NULL); |
1665 | |
1666 | c->flags &= ~(CLIENT_ALLREDRAWFLAGS|CLIENT_STATUSFORCE); |
1667 | |
1668 | if (needed) { |
1669 | /* |
1670 | * We would have deferred the redraw unless the output buffer |
1671 | * was empty, so we can record how many bytes the redraw |
1672 | * generated. |
1673 | */ |
1674 | c->redraw = EVBUFFER_LENGTH(tty->out); |
1675 | log_debug("%s: redraw added %zu bytes" , c->name, c->redraw); |
1676 | } |
1677 | } |
1678 | |
1679 | /* Set client title. */ |
1680 | static void |
1681 | server_client_set_title(struct client *c) |
1682 | { |
1683 | struct session *s = c->session; |
1684 | const char *template; |
1685 | char *title; |
1686 | struct format_tree *ft; |
1687 | |
1688 | template = options_get_string(s->options, "set-titles-string" ); |
1689 | |
1690 | ft = format_create(c, NULL, FORMAT_NONE, 0); |
1691 | format_defaults(ft, c, NULL, NULL, NULL); |
1692 | |
1693 | title = format_expand_time(ft, template); |
1694 | if (c->title == NULL || strcmp(title, c->title) != 0) { |
1695 | free(c->title); |
1696 | c->title = xstrdup(title); |
1697 | tty_set_title(&c->tty, c->title); |
1698 | } |
1699 | free(title); |
1700 | |
1701 | format_free(ft); |
1702 | } |
1703 | |
1704 | /* Dispatch message from client. */ |
1705 | static void |
1706 | server_client_dispatch(struct imsg *imsg, void *arg) |
1707 | { |
1708 | struct client *c = arg; |
1709 | ssize_t datalen; |
1710 | struct session *s; |
1711 | |
1712 | if (c->flags & CLIENT_DEAD) |
1713 | return; |
1714 | |
1715 | if (imsg == NULL) { |
1716 | server_client_lost(c); |
1717 | return; |
1718 | } |
1719 | |
1720 | datalen = imsg->hdr.len - IMSG_HEADER_SIZE; |
1721 | |
1722 | switch (imsg->hdr.type) { |
1723 | case MSG_IDENTIFY_FLAGS: |
1724 | case MSG_IDENTIFY_TERM: |
1725 | case MSG_IDENTIFY_TTYNAME: |
1726 | case MSG_IDENTIFY_CWD: |
1727 | case MSG_IDENTIFY_STDIN: |
1728 | case MSG_IDENTIFY_ENVIRON: |
1729 | case MSG_IDENTIFY_CLIENTPID: |
1730 | case MSG_IDENTIFY_DONE: |
1731 | server_client_dispatch_identify(c, imsg); |
1732 | break; |
1733 | case MSG_COMMAND: |
1734 | server_client_dispatch_command(c, imsg); |
1735 | break; |
1736 | case MSG_RESIZE: |
1737 | if (datalen != 0) |
1738 | fatalx("bad MSG_RESIZE size" ); |
1739 | |
1740 | if (c->flags & CLIENT_CONTROL) |
1741 | break; |
1742 | server_client_update_latest(c); |
1743 | server_client_clear_overlay(c); |
1744 | tty_resize(&c->tty); |
1745 | recalculate_sizes(); |
1746 | server_redraw_client(c); |
1747 | if (c->session != NULL) |
1748 | notify_client("client-resized" , c); |
1749 | break; |
1750 | case MSG_EXITING: |
1751 | if (datalen != 0) |
1752 | fatalx("bad MSG_EXITING size" ); |
1753 | |
1754 | c->session = NULL; |
1755 | tty_close(&c->tty); |
1756 | proc_send(c->peer, MSG_EXITED, -1, NULL, 0); |
1757 | break; |
1758 | case MSG_WAKEUP: |
1759 | case MSG_UNLOCK: |
1760 | if (datalen != 0) |
1761 | fatalx("bad MSG_WAKEUP size" ); |
1762 | |
1763 | if (!(c->flags & CLIENT_SUSPENDED)) |
1764 | break; |
1765 | c->flags &= ~CLIENT_SUSPENDED; |
1766 | |
1767 | if (c->tty.fd == -1) /* exited in the meantime */ |
1768 | break; |
1769 | s = c->session; |
1770 | |
1771 | if (gettimeofday(&c->activity_time, NULL) != 0) |
1772 | fatal("gettimeofday failed" ); |
1773 | |
1774 | tty_start_tty(&c->tty); |
1775 | server_redraw_client(c); |
1776 | recalculate_sizes(); |
1777 | |
1778 | if (s != NULL) |
1779 | session_update_activity(s, &c->activity_time); |
1780 | break; |
1781 | case MSG_SHELL: |
1782 | if (datalen != 0) |
1783 | fatalx("bad MSG_SHELL size" ); |
1784 | |
1785 | server_client_dispatch_shell(c); |
1786 | break; |
1787 | case MSG_WRITE_READY: |
1788 | server_client_dispatch_write_ready(c, imsg); |
1789 | break; |
1790 | case MSG_READ: |
1791 | server_client_dispatch_read_data(c, imsg); |
1792 | break; |
1793 | case MSG_READ_DONE: |
1794 | server_client_dispatch_read_done(c, imsg); |
1795 | break; |
1796 | } |
1797 | } |
1798 | |
1799 | /* Callback when command is done. */ |
1800 | static enum cmd_retval |
1801 | server_client_command_done(struct cmdq_item *item, __unused void *data) |
1802 | { |
1803 | struct client *c = item->client; |
1804 | |
1805 | if (~c->flags & CLIENT_ATTACHED) |
1806 | c->flags |= CLIENT_EXIT; |
1807 | return (CMD_RETURN_NORMAL); |
1808 | } |
1809 | |
1810 | /* Handle command message. */ |
1811 | static void |
1812 | server_client_dispatch_command(struct client *c, struct imsg *imsg) |
1813 | { |
1814 | struct msg_command data; |
1815 | char *buf; |
1816 | size_t len; |
1817 | int argc; |
1818 | char **argv, *cause; |
1819 | struct cmd_parse_result *pr; |
1820 | |
1821 | if (c->flags & CLIENT_EXIT) |
1822 | return; |
1823 | |
1824 | if (imsg->hdr.len - IMSG_HEADER_SIZE < sizeof data) |
1825 | fatalx("bad MSG_COMMAND size" ); |
1826 | memcpy(&data, imsg->data, sizeof data); |
1827 | |
1828 | buf = (char *)imsg->data + sizeof data; |
1829 | len = imsg->hdr.len - IMSG_HEADER_SIZE - sizeof data; |
1830 | if (len > 0 && buf[len - 1] != '\0') |
1831 | fatalx("bad MSG_COMMAND string" ); |
1832 | |
1833 | argc = data.argc; |
1834 | if (cmd_unpack_argv(buf, len, argc, &argv) != 0) { |
1835 | cause = xstrdup("command too long" ); |
1836 | goto error; |
1837 | } |
1838 | |
1839 | if (argc == 0) { |
1840 | argc = 1; |
1841 | argv = xcalloc(1, sizeof *argv); |
1842 | *argv = xstrdup("new-session" ); |
1843 | } |
1844 | |
1845 | pr = cmd_parse_from_arguments(argc, argv, NULL); |
1846 | switch (pr->status) { |
1847 | case CMD_PARSE_EMPTY: |
1848 | cause = xstrdup("empty command" ); |
1849 | goto error; |
1850 | case CMD_PARSE_ERROR: |
1851 | cause = pr->error; |
1852 | goto error; |
1853 | case CMD_PARSE_SUCCESS: |
1854 | break; |
1855 | } |
1856 | cmd_free_argv(argc, argv); |
1857 | |
1858 | cmdq_append(c, cmdq_get_command(pr->cmdlist, NULL, NULL, 0)); |
1859 | cmdq_append(c, cmdq_get_callback(server_client_command_done, NULL)); |
1860 | |
1861 | cmd_list_free(pr->cmdlist); |
1862 | return; |
1863 | |
1864 | error: |
1865 | cmd_free_argv(argc, argv); |
1866 | |
1867 | cmdq_append(c, cmdq_get_error(cause)); |
1868 | free(cause); |
1869 | |
1870 | c->flags |= CLIENT_EXIT; |
1871 | } |
1872 | |
1873 | /* Handle identify message. */ |
1874 | static void |
1875 | server_client_dispatch_identify(struct client *c, struct imsg *imsg) |
1876 | { |
1877 | const char *data, *home; |
1878 | size_t datalen; |
1879 | int flags; |
1880 | char *name; |
1881 | |
1882 | if (c->flags & CLIENT_IDENTIFIED) |
1883 | fatalx("out-of-order identify message" ); |
1884 | |
1885 | data = imsg->data; |
1886 | datalen = imsg->hdr.len - IMSG_HEADER_SIZE; |
1887 | |
1888 | switch (imsg->hdr.type) { |
1889 | case MSG_IDENTIFY_FLAGS: |
1890 | if (datalen != sizeof flags) |
1891 | fatalx("bad MSG_IDENTIFY_FLAGS size" ); |
1892 | memcpy(&flags, data, sizeof flags); |
1893 | c->flags |= flags; |
1894 | log_debug("client %p IDENTIFY_FLAGS %#x" , c, flags); |
1895 | break; |
1896 | case MSG_IDENTIFY_TERM: |
1897 | if (datalen == 0 || data[datalen - 1] != '\0') |
1898 | fatalx("bad MSG_IDENTIFY_TERM string" ); |
1899 | c->term = xstrdup(data); |
1900 | log_debug("client %p IDENTIFY_TERM %s" , c, data); |
1901 | break; |
1902 | case MSG_IDENTIFY_TTYNAME: |
1903 | if (datalen == 0 || data[datalen - 1] != '\0') |
1904 | fatalx("bad MSG_IDENTIFY_TTYNAME string" ); |
1905 | c->ttyname = xstrdup(data); |
1906 | log_debug("client %p IDENTIFY_TTYNAME %s" , c, data); |
1907 | break; |
1908 | case MSG_IDENTIFY_CWD: |
1909 | if (datalen == 0 || data[datalen - 1] != '\0') |
1910 | fatalx("bad MSG_IDENTIFY_CWD string" ); |
1911 | if (access(data, X_OK) == 0) |
1912 | c->cwd = xstrdup(data); |
1913 | else if ((home = find_home()) != NULL) |
1914 | c->cwd = xstrdup(home); |
1915 | else |
1916 | c->cwd = xstrdup("/" ); |
1917 | log_debug("client %p IDENTIFY_CWD %s" , c, data); |
1918 | break; |
1919 | case MSG_IDENTIFY_STDIN: |
1920 | if (datalen != 0) |
1921 | fatalx("bad MSG_IDENTIFY_STDIN size" ); |
1922 | c->fd = imsg->fd; |
1923 | log_debug("client %p IDENTIFY_STDIN %d" , c, imsg->fd); |
1924 | break; |
1925 | case MSG_IDENTIFY_ENVIRON: |
1926 | if (datalen == 0 || data[datalen - 1] != '\0') |
1927 | fatalx("bad MSG_IDENTIFY_ENVIRON string" ); |
1928 | if (strchr(data, '=') != NULL) |
1929 | environ_put(c->environ, data); |
1930 | log_debug("client %p IDENTIFY_ENVIRON %s" , c, data); |
1931 | break; |
1932 | case MSG_IDENTIFY_CLIENTPID: |
1933 | if (datalen != sizeof c->pid) |
1934 | fatalx("bad MSG_IDENTIFY_CLIENTPID size" ); |
1935 | memcpy(&c->pid, data, sizeof c->pid); |
1936 | log_debug("client %p IDENTIFY_CLIENTPID %ld" , c, (long)c->pid); |
1937 | break; |
1938 | default: |
1939 | break; |
1940 | } |
1941 | |
1942 | if (imsg->hdr.type != MSG_IDENTIFY_DONE) |
1943 | return; |
1944 | c->flags |= CLIENT_IDENTIFIED; |
1945 | |
1946 | if (*c->ttyname != '\0') |
1947 | name = xstrdup(c->ttyname); |
1948 | else |
1949 | xasprintf(&name, "client-%ld" , (long)c->pid); |
1950 | c->name = name; |
1951 | log_debug("client %p name is %s" , c, c->name); |
1952 | |
1953 | #ifdef __CYGWIN__ |
1954 | c->fd = open(c->ttyname, O_RDWR|O_NOCTTY); |
1955 | #endif |
1956 | |
1957 | if (c->flags & CLIENT_CONTROL) { |
1958 | close(c->fd); |
1959 | c->fd = -1; |
1960 | |
1961 | control_start(c); |
1962 | c->tty.fd = -1; |
1963 | } else if (c->fd != -1) { |
1964 | if (tty_init(&c->tty, c, c->fd, c->term) != 0) { |
1965 | close(c->fd); |
1966 | c->fd = -1; |
1967 | } else { |
1968 | if (c->flags & CLIENT_UTF8) |
1969 | c->tty.flags |= TTY_UTF8; |
1970 | if (c->flags & CLIENT_256COLOURS) |
1971 | c->tty.term_flags |= TERM_256COLOURS; |
1972 | tty_resize(&c->tty); |
1973 | c->flags |= CLIENT_TERMINAL; |
1974 | } |
1975 | } |
1976 | |
1977 | /* |
1978 | * If this is the first client that has finished identifying, load |
1979 | * configuration files. |
1980 | */ |
1981 | if ((~c->flags & CLIENT_EXIT) && |
1982 | !cfg_finished && |
1983 | c == TAILQ_FIRST(&clients) && |
1984 | TAILQ_NEXT(c, entry) == NULL) |
1985 | start_cfg(); |
1986 | } |
1987 | |
1988 | /* Handle shell message. */ |
1989 | static void |
1990 | server_client_dispatch_shell(struct client *c) |
1991 | { |
1992 | const char *shell; |
1993 | |
1994 | shell = options_get_string(global_s_options, "default-shell" ); |
1995 | if (*shell == '\0' || areshell(shell)) |
1996 | shell = _PATH_BSHELL; |
1997 | proc_send(c->peer, MSG_SHELL, -1, shell, strlen(shell) + 1); |
1998 | |
1999 | proc_kill_peer(c->peer); |
2000 | } |
2001 | |
2002 | /* Handle write ready message. */ |
2003 | static void |
2004 | server_client_dispatch_write_ready(struct client *c, struct imsg *imsg) |
2005 | { |
2006 | struct msg_write_ready *msg = imsg->data; |
2007 | size_t msglen = imsg->hdr.len - IMSG_HEADER_SIZE; |
2008 | struct client_file find, *cf; |
2009 | |
2010 | if (msglen != sizeof *msg) |
2011 | fatalx("bad MSG_WRITE_READY size" ); |
2012 | find.stream = msg->stream; |
2013 | if ((cf = RB_FIND(client_files, &c->files, &find)) == NULL) |
2014 | return; |
2015 | if (msg->error != 0) { |
2016 | cf->error = msg->error; |
2017 | file_fire_done(cf); |
2018 | } else |
2019 | file_push(cf); |
2020 | } |
2021 | |
2022 | /* Handle read data message. */ |
2023 | static void |
2024 | server_client_dispatch_read_data(struct client *c, struct imsg *imsg) |
2025 | { |
2026 | struct msg_read_data *msg = imsg->data; |
2027 | size_t msglen = imsg->hdr.len - IMSG_HEADER_SIZE; |
2028 | struct client_file find, *cf; |
2029 | void *bdata = msg + 1; |
2030 | size_t bsize = msglen - sizeof *msg; |
2031 | |
2032 | if (msglen < sizeof *msg) |
2033 | fatalx("bad MSG_READ_DATA size" ); |
2034 | find.stream = msg->stream; |
2035 | if ((cf = RB_FIND(client_files, &c->files, &find)) == NULL) |
2036 | return; |
2037 | |
2038 | log_debug("%s: file %d read %zu bytes" , c->name, cf->stream, bsize); |
2039 | if (cf->error == 0) { |
2040 | if (evbuffer_add(cf->buffer, bdata, bsize) != 0) { |
2041 | cf->error = ENOMEM; |
2042 | file_fire_done(cf); |
2043 | } else |
2044 | file_fire_read(cf); |
2045 | } |
2046 | } |
2047 | |
2048 | /* Handle read done message. */ |
2049 | static void |
2050 | server_client_dispatch_read_done(struct client *c, struct imsg *imsg) |
2051 | { |
2052 | struct msg_read_done *msg = imsg->data; |
2053 | size_t msglen = imsg->hdr.len - IMSG_HEADER_SIZE; |
2054 | struct client_file find, *cf; |
2055 | |
2056 | if (msglen != sizeof *msg) |
2057 | fatalx("bad MSG_READ_DONE size" ); |
2058 | find.stream = msg->stream; |
2059 | if ((cf = RB_FIND(client_files, &c->files, &find)) == NULL) |
2060 | return; |
2061 | |
2062 | log_debug("%s: file %d read done" , c->name, cf->stream); |
2063 | cf->error = msg->error; |
2064 | file_fire_done(cf); |
2065 | } |
2066 | |
2067 | /* Add to client message log. */ |
2068 | void |
2069 | server_client_add_message(struct client *c, const char *fmt, ...) |
2070 | { |
2071 | struct message_entry *msg, *msg1; |
2072 | char *s; |
2073 | va_list ap; |
2074 | u_int limit; |
2075 | |
2076 | va_start(ap, fmt); |
2077 | xvasprintf(&s, fmt, ap); |
2078 | va_end(ap); |
2079 | |
2080 | log_debug("message %s (client %p)" , s, c); |
2081 | |
2082 | msg = xcalloc(1, sizeof *msg); |
2083 | msg->msg_time = time(NULL); |
2084 | msg->msg_num = c->message_next++; |
2085 | msg->msg = s; |
2086 | TAILQ_INSERT_TAIL(&c->message_log, msg, entry); |
2087 | |
2088 | limit = options_get_number(global_options, "message-limit" ); |
2089 | TAILQ_FOREACH_SAFE(msg, &c->message_log, entry, msg1) { |
2090 | if (msg->msg_num + limit >= c->message_next) |
2091 | break; |
2092 | free(msg->msg); |
2093 | TAILQ_REMOVE(&c->message_log, msg, entry); |
2094 | free(msg); |
2095 | } |
2096 | } |
2097 | |
2098 | /* Get client working directory. */ |
2099 | const char * |
2100 | server_client_get_cwd(struct client *c, struct session *s) |
2101 | { |
2102 | const char *home; |
2103 | |
2104 | if (!cfg_finished && cfg_client != NULL) |
2105 | return (cfg_client->cwd); |
2106 | if (c != NULL && c->session == NULL && c->cwd != NULL) |
2107 | return (c->cwd); |
2108 | if (s != NULL && s->cwd != NULL) |
2109 | return (s->cwd); |
2110 | if (c != NULL && (s = c->session) != NULL && s->cwd != NULL) |
2111 | return (s->cwd); |
2112 | if ((home = find_home()) != NULL) |
2113 | return (home); |
2114 | return ("/" ); |
2115 | } |
2116 | |