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460b9539 | 1 | /* |
2 | * This file is part of DisOrder. | |
5aff007d | 3 | * Copyright (C) 2006-2008 Richard Kettlewell |
460b9539 | 4 | * |
5 | * This program is free software; you can redistribute it and/or modify | |
6 | * it under the terms of the GNU General Public License as published by | |
7 | * the Free Software Foundation; either version 2 of the License, or | |
8 | * (at your option) any later version. | |
9 | * | |
10 | * This program is distributed in the hope that it will be useful, but | |
11 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
13 | * General Public License for more details. | |
14 | * | |
15 | * You should have received a copy of the GNU General Public License | |
16 | * along with this program; if not, write to the Free Software | |
17 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 | |
18 | * USA | |
19 | */ | |
0e4472a0 | 20 | /** @file lib/eclient.c |
21 | * @brief Client code for event-driven programs | |
22 | */ | |
460b9539 | 23 | |
05b75f8d | 24 | #include "common.h" |
460b9539 | 25 | |
26 | #include <sys/types.h> | |
27 | #include <sys/socket.h> | |
28 | #include <netinet/in.h> | |
29 | #include <sys/un.h> | |
460b9539 | 30 | #include <unistd.h> |
31 | #include <errno.h> | |
32 | #include <netdb.h> | |
460b9539 | 33 | #include <inttypes.h> |
34 | #include <stddef.h> | |
8b2e9303 | 35 | #include <time.h> |
460b9539 | 36 | |
37 | #include "log.h" | |
38 | #include "mem.h" | |
39 | #include "configuration.h" | |
40 | #include "queue.h" | |
41 | #include "eclient.h" | |
42 | #include "charset.h" | |
43 | #include "hex.h" | |
44 | #include "split.h" | |
45 | #include "vector.h" | |
46 | #include "inputline.h" | |
47 | #include "kvp.h" | |
48 | #include "syscalls.h" | |
49 | #include "printf.h" | |
50 | #include "addr.h" | |
51 | #include "authhash.h" | |
52 | #include "table.h" | |
53 | #include "client-common.h" | |
54 | ||
55 | /* TODO: more commands */ | |
56 | ||
3f74b5dc RK |
57 | /** @brief How often to send data to the server when receiving logs */ |
58 | #define LOG_PROD_INTERVAL 10 | |
59 | ||
460b9539 | 60 | /* Types *********************************************************************/ |
61 | ||
0e4472a0 | 62 | /** @brief Client state */ |
460b9539 | 63 | enum client_state { |
0e4472a0 | 64 | state_disconnected, /**< @brief not connected */ |
65 | state_connecting, /**< @brief waiting for connect() */ | |
66 | state_connected, /**< @brief connected but not authenticated */ | |
67 | state_idle, /**< @brief not doing anything */ | |
68 | state_cmdresponse, /**< @brief waiting for command resonse */ | |
69 | state_body, /**< @brief accumulating body */ | |
70 | state_log, /**< @brief monitoring log */ | |
460b9539 | 71 | }; |
72 | ||
0e4472a0 | 73 | /** @brief Names for @ref client_state */ |
460b9539 | 74 | static const char *const states[] = { |
75 | "disconnected", | |
76 | "connecting", | |
77 | "connected", | |
78 | "idle", | |
79 | "cmdresponse", | |
80 | "body", | |
81 | "log" | |
82 | }; | |
83 | ||
84 | struct operation; /* forward decl */ | |
85 | ||
0e4472a0 | 86 | /** @brief Type of an operation callback */ |
460b9539 | 87 | typedef void operation_callback(disorder_eclient *c, struct operation *op); |
88 | ||
0e4472a0 | 89 | /** @brief A pending operation. |
90 | * | |
91 | * This can be either a command or part of the authentication protocol. In the | |
92 | * former case new commands are appended to the list, in the latter case they | |
93 | * are inserted at the front. */ | |
460b9539 | 94 | struct operation { |
0e4472a0 | 95 | struct operation *next; /**< @brief next operation */ |
96 | char *cmd; /**< @brief command to send or 0 */ | |
53740beb | 97 | char **body; /**< @brief command body */ |
0e4472a0 | 98 | operation_callback *opcallback; /**< @brief internal completion callback */ |
99 | void (*completed)(); /**< @brief user completion callback or 0 */ | |
100 | void *v; /**< @brief data for COMPLETED */ | |
101 | disorder_eclient *client; /**< @brief owning client */ | |
ad58ebcc | 102 | |
103 | /** @brief true if sent to server | |
104 | * | |
105 | * This is cleared by disorder_eclient_close(), forcing all queued | |
106 | * commands to be transparently resent. | |
107 | */ | |
108 | int sent; | |
460b9539 | 109 | }; |
110 | ||
0e4472a0 | 111 | /** @brief Client structure */ |
460b9539 | 112 | struct disorder_eclient { |
0227f67d | 113 | char *ident; |
0e4472a0 | 114 | int fd; /**< @brief connection to server */ |
115 | enum client_state state; /**< @brief current state */ | |
116 | int authenticated; /**< @brief true when authenicated */ | |
117 | struct dynstr output; /**< @brief output buffer */ | |
118 | struct dynstr input; /**< @brief input buffer */ | |
119 | int eof; /**< @brief input buffer is at EOF */ | |
120 | const disorder_eclient_callbacks *callbacks; /**< @brief error callbacks */ | |
121 | void *u; /**< @brief user data */ | |
122 | struct operation *ops; /**< @brief queue of operations */ | |
123 | struct operation **opstail; /**< @brief queue tail */ | |
460b9539 | 124 | /* accumulated response */ |
0e4472a0 | 125 | int rc; /**< @brief response code */ |
126 | char *line; /**< @brief complete line */ | |
127 | struct vector vec; /**< @brief body */ | |
3f74b5dc RK |
128 | |
129 | const disorder_eclient_log_callbacks *log_callbacks; | |
130 | /**< @brief log callbacks | |
131 | * | |
132 | * Once disorder_eclient_log() has been issued this is always set. When we | |
133 | * re-connect it is checked to re-issue the log command. | |
134 | */ | |
0e4472a0 | 135 | void *log_v; /**< @brief user data */ |
8f763f1b | 136 | unsigned long statebits; /**< @brief latest state */ |
3f74b5dc RK |
137 | |
138 | time_t last_prod; | |
139 | /**< @brief last time we sent a prod | |
140 | * | |
141 | * When we are receiving log data we send a "prod" byte to the server from | |
142 | * time to time so that we detect broken connections reasonably quickly. The | |
143 | * server just ignores these bytes. | |
144 | */ | |
b8b4ef7f | 145 | |
146 | /** @brief Protocol version */ | |
147 | int protocol; | |
68210888 RK |
148 | |
149 | /** @brief True if enabled */ | |
150 | int enabled; | |
460b9539 | 151 | }; |
152 | ||
153 | /* Forward declarations ******************************************************/ | |
154 | ||
0227f67d | 155 | static int start_connect(disorder_eclient *c); |
460b9539 | 156 | static void process_line(disorder_eclient *c, char *line); |
460b9539 | 157 | static void maybe_connected(disorder_eclient *c); |
158 | static void authbanner_opcallback(disorder_eclient *c, | |
159 | struct operation *op); | |
160 | static void authuser_opcallback(disorder_eclient *c, | |
161 | struct operation *op); | |
162 | static void complete(disorder_eclient *c); | |
163 | static void send_output(disorder_eclient *c); | |
164 | static void put(disorder_eclient *c, const char *s, size_t n); | |
165 | static void read_input(disorder_eclient *c); | |
166 | static void stash_command(disorder_eclient *c, | |
167 | int queuejump, | |
168 | operation_callback *opcallback, | |
169 | void (*completed)(), | |
170 | void *v, | |
53740beb RK |
171 | int nbody, |
172 | char **body, | |
460b9539 | 173 | const char *cmd, |
174 | ...); | |
175 | static void log_opcallback(disorder_eclient *c, struct operation *op); | |
176 | static void logline(disorder_eclient *c, const char *line); | |
177 | static void logentry_completed(disorder_eclient *c, int nvec, char **vec); | |
178 | static void logentry_failed(disorder_eclient *c, int nvec, char **vec); | |
179 | static void logentry_moved(disorder_eclient *c, int nvec, char **vec); | |
180 | static void logentry_playing(disorder_eclient *c, int nvec, char **vec); | |
181 | static void logentry_queue(disorder_eclient *c, int nvec, char **vec); | |
182 | static void logentry_recent_added(disorder_eclient *c, int nvec, char **vec); | |
183 | static void logentry_recent_removed(disorder_eclient *c, int nvec, char **vec); | |
184 | static void logentry_removed(disorder_eclient *c, int nvec, char **vec); | |
185 | static void logentry_scratched(disorder_eclient *c, int nvec, char **vec); | |
186 | static void logentry_state(disorder_eclient *c, int nvec, char **vec); | |
187 | static void logentry_volume(disorder_eclient *c, int nvec, char **vec); | |
e025abff | 188 | static void logentry_rescanned(disorder_eclient *c, int nvec, char **vec); |
58d2aad2 RK |
189 | static void logentry_user_add(disorder_eclient *c, int nvec, char **vec); |
190 | static void logentry_user_confirm(disorder_eclient *c, int nvec, char **vec); | |
191 | static void logentry_user_delete(disorder_eclient *c, int nvec, char **vec); | |
192 | static void logentry_user_edit(disorder_eclient *c, int nvec, char **vec); | |
ad492e00 | 193 | static void logentry_rights_changed(disorder_eclient *c, int nvec, char **vec); |
460b9539 | 194 | |
195 | /* Tables ********************************************************************/ | |
196 | ||
0e4472a0 | 197 | /** @brief One possible log entry */ |
198 | struct logentry_handler { | |
199 | const char *name; /**< @brief Entry name */ | |
200 | int min; /**< @brief Minimum arguments */ | |
201 | int max; /**< @brief Maximum arguments */ | |
460b9539 | 202 | void (*handler)(disorder_eclient *c, |
203 | int nvec, | |
0e4472a0 | 204 | char **vec); /**< @brief Handler function */ |
205 | }; | |
206 | ||
207 | /** @brief Table for parsing log entries */ | |
208 | static const struct logentry_handler logentry_handlers[] = { | |
460b9539 | 209 | #define LE(X, MIN, MAX) { #X, MIN, MAX, logentry_##X } |
210 | LE(completed, 1, 1), | |
211 | LE(failed, 2, 2), | |
212 | LE(moved, 1, 1), | |
213 | LE(playing, 1, 2), | |
214 | LE(queue, 2, INT_MAX), | |
215 | LE(recent_added, 2, INT_MAX), | |
216 | LE(recent_removed, 1, 1), | |
217 | LE(removed, 1, 2), | |
e025abff | 218 | LE(rescanned, 0, 0), |
ad492e00 | 219 | LE(rights_changed, 1, 1), |
460b9539 | 220 | LE(scratched, 2, 2), |
221 | LE(state, 1, 1), | |
58d2aad2 RK |
222 | LE(user_add, 1, 1), |
223 | LE(user_confirm, 1, 1), | |
224 | LE(user_delete, 1, 1), | |
225 | LE(user_edit, 2, 2), | |
460b9539 | 226 | LE(volume, 2, 2) |
227 | }; | |
228 | ||
229 | /* Setup and teardown ********************************************************/ | |
230 | ||
0e4472a0 | 231 | /** @brief Create a new client |
232 | * | |
233 | * Does NOT connect the client - connections are made (and re-made) on demand. | |
234 | */ | |
460b9539 | 235 | disorder_eclient *disorder_eclient_new(const disorder_eclient_callbacks *cb, |
236 | void *u) { | |
237 | disorder_eclient *c = xmalloc(sizeof *c); | |
238 | D(("disorder_eclient_new")); | |
239 | c->fd = -1; | |
240 | c->callbacks = cb; | |
241 | c->u = u; | |
242 | c->opstail = &c->ops; | |
68210888 | 243 | c->enabled = 1; |
460b9539 | 244 | vector_init(&c->vec); |
245 | dynstr_init(&c->input); | |
246 | dynstr_init(&c->output); | |
247 | return c; | |
248 | } | |
249 | ||
ad58ebcc | 250 | /** @brief Disconnect a client |
251 | * @param c Client to disconnect | |
252 | * | |
253 | * NB that this routine just disconnnects the TCP connection. It does not | |
254 | * destroy the client! If you continue to use it then it will attempt to | |
255 | * reconnect. | |
256 | */ | |
460b9539 | 257 | void disorder_eclient_close(disorder_eclient *c) { |
258 | struct operation *op; | |
259 | ||
260 | D(("disorder_eclient_close")); | |
261 | if(c->fd != -1) { | |
262 | D(("disorder_eclient_close closing fd %d", c->fd)); | |
263 | c->callbacks->poll(c->u, c, c->fd, 0); | |
264 | xclose(c->fd); | |
265 | c->fd = -1; | |
266 | c->state = state_disconnected; | |
8f763f1b | 267 | c->statebits = 0; |
460b9539 | 268 | } |
269 | c->output.nvec = 0; | |
270 | c->input.nvec = 0; | |
271 | c->eof = 0; | |
272 | c->authenticated = 0; | |
273 | /* We'll need to resend all operations */ | |
274 | for(op = c->ops; op; op = op->next) | |
275 | op->sent = 0; | |
6d1302f0 RK |
276 | /* Drop our use a hint that we're disconnected */ |
277 | if(c->log_callbacks && c->log_callbacks->state) | |
278 | c->log_callbacks->state(c->log_v, c->statebits); | |
460b9539 | 279 | } |
280 | ||
68210888 RK |
281 | /** @brief Permit new connection activity */ |
282 | void disorder_eclient_enable_connect(disorder_eclient *c) { | |
283 | c->enabled = 1; | |
284 | } | |
285 | ||
286 | /** @brief Suppress new connection activity */ | |
287 | void disorder_eclient_disable_connect(disorder_eclient *c) { | |
288 | c->enabled = 0; | |
289 | } | |
290 | ||
8f763f1b RK |
291 | /** @brief Return current state */ |
292 | unsigned long disorder_eclient_state(const disorder_eclient *c) { | |
293 | return c->statebits | (c->state > state_connected ? DISORDER_CONNECTED : 0); | |
ad58ebcc | 294 | } |
295 | ||
460b9539 | 296 | /* Error reporting ***********************************************************/ |
297 | ||
ad58ebcc | 298 | /** @brief called when a connection error occurs |
299 | * | |
300 | * After this called we will be disconnected (by disorder_eclient_close()), | |
301 | * so there will be a reconnection before any commands can be sent. | |
302 | */ | |
460b9539 | 303 | static int comms_error(disorder_eclient *c, const char *fmt, ...) { |
304 | va_list ap; | |
305 | char *s; | |
306 | ||
307 | D(("comms_error")); | |
308 | va_start(ap, fmt); | |
309 | byte_xvasprintf(&s, fmt, ap); | |
310 | va_end(ap); | |
311 | disorder_eclient_close(c); | |
312 | c->callbacks->comms_error(c->u, s); | |
313 | return -1; | |
314 | } | |
315 | ||
0e4472a0 | 316 | /** @brief called when the server reports an error */ |
460b9539 | 317 | static int protocol_error(disorder_eclient *c, struct operation *op, |
318 | int code, const char *fmt, ...) { | |
319 | va_list ap; | |
320 | char *s; | |
321 | ||
322 | D(("protocol_error")); | |
323 | va_start(ap, fmt); | |
324 | byte_xvasprintf(&s, fmt, ap); | |
325 | va_end(ap); | |
326 | c->callbacks->protocol_error(c->u, op->v, code, s); | |
327 | return -1; | |
328 | } | |
329 | ||
330 | /* State machine *************************************************************/ | |
331 | ||
53740beb RK |
332 | /** @brief Send an operation (into the output buffer) |
333 | * @param op Operation to send | |
334 | */ | |
335 | static void op_send(struct operation *op) { | |
336 | disorder_eclient *const c = op->client; | |
337 | put(c, op->cmd, strlen(op->cmd)); | |
338 | if(op->body) { | |
339 | for(int n = 0; op->body[n]; ++n) { | |
340 | if(op->body[n][0] == '.') | |
341 | put(c, ".", 1); | |
342 | put(c, op->body[n], strlen(op->body[n])); | |
343 | put(c, "\n", 1); | |
344 | } | |
345 | put(c, ".\n", 2); | |
346 | } | |
347 | op->sent = 1; | |
348 | } | |
349 | ||
0e4472a0 | 350 | /** @brief Called when there's something to do |
351 | * @param c Client | |
352 | * @param mode bitmap of @ref DISORDER_POLL_READ and/or @ref DISORDER_POLL_WRITE. | |
353 | * | |
354 | * This should be called from by your code when the file descriptor is readable | |
355 | * or writable (as requested by the @c poll callback, see @ref | |
356 | * disorder_eclient_callbacks) and in any case from time to time (with @p mode | |
357 | * = 0) to allow for retries to work. | |
358 | */ | |
460b9539 | 359 | void disorder_eclient_polled(disorder_eclient *c, unsigned mode) { |
360 | struct operation *op; | |
3f74b5dc | 361 | time_t now; |
ad58ebcc | 362 | |
460b9539 | 363 | D(("disorder_eclient_polled fd=%d state=%s mode=[%s %s]", |
364 | c->fd, states[c->state], | |
365 | mode & DISORDER_POLL_READ ? "READ" : "", | |
366 | mode & DISORDER_POLL_WRITE ? "WRITE" : "")); | |
367 | /* The pattern here is to check each possible state in turn and try to | |
368 | * advance (though on error we might go back). If we advance we leave open | |
369 | * the possibility of falling through to the next state, but we set the mode | |
370 | * bits to 0, to avoid false positives (which matter more in some cases than | |
371 | * others). */ | |
372 | ||
373 | if(c->state == state_disconnected) { | |
374 | D(("state_disconnected")); | |
bf5fdf14 RK |
375 | /* If there is no password yet then we cannot connect */ |
376 | if(!config->password) { | |
377 | comms_error(c, "no password is configured"); | |
68210888 | 378 | c->enabled = 0; |
bf5fdf14 RK |
379 | return; |
380 | } | |
68210888 RK |
381 | /* Only try to connect if enabled */ |
382 | if(c->enabled) | |
383 | start_connect(c); | |
460b9539 | 384 | /* might now be state_disconnected (on error), state_connecting (slow |
385 | * connect) or state_connected (fast connect). If state_disconnected then | |
386 | * we just rely on a periodic callback from the event loop sometime. */ | |
387 | mode = 0; | |
388 | } | |
389 | ||
390 | if(c->state == state_connecting && mode) { | |
391 | D(("state_connecting")); | |
392 | maybe_connected(c); | |
393 | /* Might be state_disconnected (on error) or state_connected (on success). | |
394 | * In the former case we rely on the event loop for a periodic callback to | |
395 | * retry. */ | |
396 | mode = 0; | |
397 | } | |
398 | ||
399 | if(c->state == state_connected) { | |
400 | D(("state_connected")); | |
401 | /* We just connected. Initiate the authentication protocol. */ | |
402 | stash_command(c, 1/*queuejump*/, authbanner_opcallback, | |
53740beb | 403 | 0/*completed*/, 0/*v*/, -1/*nbody*/, 0/*body*/, 0/*cmd*/); |
460b9539 | 404 | /* We never stay is state_connected very long. We could in principle jump |
405 | * straight to state_cmdresponse since there's actually no command to | |
406 | * send, but that would arguably be cheating. */ | |
407 | c->state = state_idle; | |
408 | } | |
409 | ||
410 | if(c->state == state_idle) { | |
411 | D(("state_idle")); | |
412 | /* We are connected, and have finished any command we set off, look for | |
413 | * some work to do */ | |
414 | if(c->ops) { | |
415 | D(("have ops")); | |
416 | if(c->authenticated) { | |
417 | /* Transmit all unsent operations */ | |
418 | for(op = c->ops; op; op = op->next) { | |
53740beb RK |
419 | if(!op->sent) |
420 | op_send(op); | |
460b9539 | 421 | } |
422 | } else { | |
423 | /* Just send the head operation */ | |
53740beb RK |
424 | if(c->ops->cmd && !c->ops->sent) |
425 | op_send(c->ops); | |
460b9539 | 426 | } |
427 | /* Awaiting response for the operation at the head of the list */ | |
428 | c->state = state_cmdresponse; | |
429 | } else | |
430 | /* genuinely idle */ | |
431 | c->callbacks->report(c->u, 0); | |
432 | } | |
433 | ||
3f74b5dc RK |
434 | /* Queue up a byte to send */ |
435 | if(c->state == state_log | |
436 | && c->output.nvec == 0 | |
437 | && time(&now) - c->last_prod > LOG_PROD_INTERVAL) { | |
438 | put(c, "x", 1); | |
439 | c->last_prod = now; | |
440 | } | |
441 | ||
460b9539 | 442 | if(c->state == state_cmdresponse |
443 | || c->state == state_body | |
444 | || c->state == state_log) { | |
445 | D(("state_%s", states[c->state])); | |
446 | /* We are awaiting a response */ | |
447 | if(mode & DISORDER_POLL_WRITE) send_output(c); | |
448 | if(mode & DISORDER_POLL_READ) read_input(c); | |
449 | /* There are a couple of reasons we might want to re-enter the state | |
450 | * machine from the top. state_idle is obvious: there may be further | |
451 | * commands to process. Re-entering on state_disconnected means that we | |
452 | * immediately retry connection if a comms error occurs during a command. | |
453 | * This is different to the case where a connection fails, where we await a | |
454 | * spontaneous call to initiate the retry. */ | |
455 | switch(c->state) { | |
456 | case state_disconnected: /* lost connection */ | |
457 | case state_idle: /* completed a command */ | |
458 | D(("retrying")); | |
459 | disorder_eclient_polled(c, 0); | |
460 | return; | |
461 | default: | |
462 | break; | |
463 | } | |
464 | } | |
465 | ||
466 | /* Figure out what to set the mode to */ | |
467 | switch(c->state) { | |
468 | case state_disconnected: | |
469 | D(("state_disconnected (2)")); | |
470 | /* Probably an error occurred. Await a retry. */ | |
471 | mode = 0; | |
472 | break; | |
473 | case state_connecting: | |
474 | D(("state_connecting (2)")); | |
475 | /* Waiting for connect to complete */ | |
476 | mode = DISORDER_POLL_READ|DISORDER_POLL_WRITE; | |
477 | break; | |
478 | case state_connected: | |
479 | D(("state_connected (2)")); | |
480 | assert(!"should never be in state_connected here"); | |
481 | break; | |
482 | case state_idle: | |
483 | D(("state_idle (2)")); | |
484 | /* Connected but nothing to do. */ | |
485 | mode = 0; | |
486 | break; | |
487 | case state_cmdresponse: | |
488 | case state_body: | |
489 | case state_log: | |
490 | D(("state_%s (2)", states[c->state])); | |
491 | /* Gathering a response. Wait for input. */ | |
492 | mode = DISORDER_POLL_READ; | |
493 | /* Flush any pending output. */ | |
494 | if(c->output.nvec) mode |= DISORDER_POLL_WRITE; | |
495 | break; | |
496 | } | |
497 | D(("fd=%d new mode [%s %s]", | |
498 | c->fd, | |
499 | mode & DISORDER_POLL_READ ? "READ" : "", | |
500 | mode & DISORDER_POLL_WRITE ? "WRITE" : "")); | |
501 | if(c->fd != -1) c->callbacks->poll(c->u, c, c->fd, mode); | |
502 | } | |
503 | ||
0e4472a0 | 504 | /** @brief Called to start connecting */ |
0227f67d RK |
505 | static int start_connect(disorder_eclient *c) { |
506 | struct sockaddr *sa; | |
507 | socklen_t len; | |
460b9539 | 508 | |
509 | D(("start_connect")); | |
319d7107 | 510 | if((len = find_server(config, &sa, &c->ident)) == (socklen_t)-1) |
0227f67d | 511 | return comms_error(c, "cannot look up server"); /* TODO better error */ |
460b9539 | 512 | if(c->fd != -1) { |
513 | xclose(c->fd); | |
514 | c->fd = -1; | |
515 | } | |
516 | if((c->fd = socket(sa->sa_family, SOCK_STREAM, 0)) < 0) | |
517 | return comms_error(c, "socket: %s", strerror(errno)); | |
518 | c->eof = 0; | |
519 | nonblock(c->fd); | |
3f74b5dc | 520 | cloexec(c->fd); |
460b9539 | 521 | if(connect(c->fd, sa, len) < 0) { |
522 | switch(errno) { | |
523 | case EINTR: | |
524 | case EINPROGRESS: | |
525 | c->state = state_connecting; | |
526 | /* We are called from _polled so the state machine will get to do its | |
527 | * thing */ | |
528 | return 0; | |
529 | default: | |
530 | /* Signal the error to the caller. */ | |
0227f67d | 531 | return comms_error(c, "connecting to %s: %s", c->ident, strerror(errno)); |
460b9539 | 532 | } |
533 | } else | |
534 | c->state = state_connected; | |
535 | return 0; | |
536 | } | |
537 | ||
ad58ebcc | 538 | /** @brief Called when poll triggers while waiting for a connection */ |
460b9539 | 539 | static void maybe_connected(disorder_eclient *c) { |
540 | /* We either connected, or got an error. */ | |
541 | int err; | |
542 | socklen_t len = sizeof err; | |
543 | ||
544 | D(("maybe_connected")); | |
545 | /* Work around over-enthusiastic error slippage */ | |
546 | if(getsockopt(c->fd, SOL_SOCKET, SO_ERROR, &err, &len) < 0) | |
547 | err = errno; | |
548 | if(err) { | |
549 | /* The connection failed */ | |
550 | comms_error(c, "connecting to %s: %s", c->ident, strerror(err)); | |
551 | /* sets state_disconnected */ | |
552 | } else { | |
e836b1aa | 553 | char *r; |
554 | ||
460b9539 | 555 | /* The connection succeeded */ |
556 | c->state = state_connected; | |
e836b1aa | 557 | byte_xasprintf(&r, "connected to %s", c->ident); |
558 | c->callbacks->report(c->u, r); | |
6d1302f0 RK |
559 | /* If this is a log client we expect to get a bunch of updates from the |
560 | * server straight away */ | |
460b9539 | 561 | } |
562 | } | |
563 | ||
564 | /* Authentication ************************************************************/ | |
565 | ||
1f3ce240 | 566 | /** @brief Called with the greeting from the server */ |
460b9539 | 567 | static void authbanner_opcallback(disorder_eclient *c, |
568 | struct operation *op) { | |
569 | size_t nonce_len; | |
570 | const unsigned char *nonce; | |
571 | const char *res; | |
637fdea3 RK |
572 | char **rvec; |
573 | int nrvec; | |
416609cf | 574 | const char *protocol, *algorithm, *challenge; |
460b9539 | 575 | |
576 | D(("authbanner_opcallback")); | |
637fdea3 RK |
577 | if(c->rc / 100 != 2 |
578 | || !(rvec = split(c->line + 4, &nrvec, SPLIT_QUOTES, 0, 0)) | |
579 | || nrvec < 1) { | |
580 | /* Banner told us to go away, or was malformed. We cannot proceed. */ | |
460b9539 | 581 | protocol_error(c, op, c->rc, "%s: %s", c->ident, c->line); |
582 | disorder_eclient_close(c); | |
583 | return; | |
584 | } | |
b8b4ef7f | 585 | switch(nrvec) { |
586 | case 1: | |
587 | protocol = "1"; | |
588 | algorithm = "sha1"; | |
589 | challenge = *rvec++; | |
590 | break; | |
591 | case 2: | |
592 | protocol = "1"; | |
593 | algorithm = *rvec++; | |
594 | challenge = *rvec++; | |
595 | break; | |
596 | case 3: | |
597 | protocol = *rvec++; | |
598 | algorithm = *rvec++; | |
599 | challenge = *rvec++; | |
600 | break; | |
601 | default: | |
416609cf RK |
602 | protocol_error(c, op, c->rc, "%s: %s", c->ident, c->line); |
603 | disorder_eclient_close(c); | |
b8b4ef7f | 604 | return; |
416609cf | 605 | } |
b8b4ef7f | 606 | c->protocol = atoi(protocol); |
607 | if(c->protocol < 1 || c->protocol > 2) { | |
416609cf RK |
608 | protocol_error(c, op, c->rc, "%s: %s", c->ident, c->line); |
609 | disorder_eclient_close(c); | |
b8b4ef7f | 610 | return; |
637fdea3 | 611 | } |
416609cf RK |
612 | nonce = unhex(challenge, &nonce_len); |
613 | res = authhash(nonce, nonce_len, config->password, algorithm); | |
637fdea3 RK |
614 | if(!res) { |
615 | protocol_error(c, op, c->rc, "%s: unknown authentication algorithm '%s'", | |
416609cf | 616 | c->ident, algorithm); |
637fdea3 RK |
617 | disorder_eclient_close(c); |
618 | return; | |
619 | } | |
460b9539 | 620 | stash_command(c, 1/*queuejump*/, authuser_opcallback, 0/*completed*/, 0/*v*/, |
53740beb | 621 | -1/*nbody*/, 0/*body*/, |
460b9539 | 622 | "user", quoteutf8(config->username), quoteutf8(res), |
623 | (char *)0); | |
624 | } | |
625 | ||
1f3ce240 | 626 | /** @brief Called with the response to the @c user command */ |
460b9539 | 627 | static void authuser_opcallback(disorder_eclient *c, |
628 | struct operation *op) { | |
e836b1aa | 629 | char *r; |
630 | ||
460b9539 | 631 | D(("authuser_opcallback")); |
632 | if(c->rc / 100 != 2) { | |
633 | /* Wrong password or something. We cannot proceed. */ | |
634 | protocol_error(c, op, c->rc, "%s: %s", c->ident, c->line); | |
68210888 | 635 | c->enabled = 0; |
460b9539 | 636 | disorder_eclient_close(c); |
637 | return; | |
638 | } | |
639 | /* OK, we're authenticated now. */ | |
640 | c->authenticated = 1; | |
e836b1aa | 641 | byte_xasprintf(&r, "authenticated with %s", c->ident); |
642 | c->callbacks->report(c->u, r); | |
460b9539 | 643 | if(c->log_callbacks && !(c->ops && c->ops->opcallback == log_opcallback)) |
644 | /* We are a log client, switch to logging mode */ | |
645 | stash_command(c, 0/*queuejump*/, log_opcallback, 0/*completed*/, c->log_v, | |
53740beb | 646 | -1/*nbody*/, 0/*body*/, |
460b9539 | 647 | "log", (char *)0); |
648 | } | |
649 | ||
650 | /* Output ********************************************************************/ | |
651 | ||
652 | /* Chop N bytes off the front of a dynstr */ | |
653 | static void consume(struct dynstr *d, int n) { | |
654 | D(("consume %d", n)); | |
655 | assert(d->nvec >= n); | |
656 | memmove(d->vec, d->vec + n, d->nvec - n); | |
657 | d->nvec -= n; | |
658 | } | |
659 | ||
660 | /* Write some bytes */ | |
661 | static void put(disorder_eclient *c, const char *s, size_t n) { | |
662 | D(("put %d %.*s", c->fd, (int)n, s)); | |
663 | dynstr_append_bytes(&c->output, s, n); | |
664 | } | |
665 | ||
666 | /* Called when we can write to our FD, or at any other time */ | |
667 | static void send_output(disorder_eclient *c) { | |
668 | int n; | |
669 | ||
670 | D(("send_output %d bytes pending", c->output.nvec)); | |
671 | if(c->state > state_connecting && c->output.nvec) { | |
672 | n = write(c->fd, c->output.vec, c->output.nvec); | |
673 | if(n < 0) { | |
674 | switch(errno) { | |
675 | case EINTR: | |
676 | case EAGAIN: | |
677 | break; | |
678 | default: | |
679 | comms_error(c, "writing to %s: %s", c->ident, strerror(errno)); | |
680 | break; | |
681 | } | |
682 | } else | |
683 | consume(&c->output, n); | |
684 | } | |
685 | } | |
686 | ||
687 | /* Input *********************************************************************/ | |
688 | ||
689 | /* Called when c->fd might be readable, or at any other time */ | |
690 | static void read_input(disorder_eclient *c) { | |
691 | char *nl; | |
692 | int n; | |
693 | char buffer[512]; | |
694 | ||
695 | D(("read_input in state %s", states[c->state])); | |
696 | if(c->state <= state_connected) return; /* ignore bogus calls */ | |
697 | /* read some more input */ | |
698 | n = read(c->fd, buffer, sizeof buffer); | |
699 | if(n < 0) { | |
700 | switch(errno) { | |
701 | case EINTR: | |
702 | case EAGAIN: | |
703 | break; | |
704 | default: | |
705 | comms_error(c, "reading from %s: %s", c->ident, strerror(errno)); | |
706 | break; | |
707 | } | |
708 | return; /* no new input to process */ | |
709 | } else if(n) { | |
710 | D(("read %d bytes: [%.*s]", n, n, buffer)); | |
711 | dynstr_append_bytes(&c->input, buffer, n); | |
712 | } else | |
713 | c->eof = 1; | |
714 | /* might have more than one line to process */ | |
715 | while(c->state > state_connecting | |
716 | && (nl = memchr(c->input.vec, '\n', c->input.nvec))) { | |
717 | process_line(c, xstrndup(c->input.vec, nl - c->input.vec)); | |
718 | /* we might have disconnected along the way, which zogs the input buffer */ | |
719 | if(c->state > state_connecting) | |
720 | consume(&c->input, (nl - c->input.vec) + 1); | |
721 | } | |
346ba8d5 | 722 | if(c->eof) { |
460b9539 | 723 | comms_error(c, "reading from %s: server disconnected", c->ident); |
346ba8d5 | 724 | c->authenticated = 0; |
725 | } | |
460b9539 | 726 | } |
727 | ||
728 | /* called with a line that has just been read */ | |
729 | static void process_line(disorder_eclient *c, char *line) { | |
730 | D(("process_line %d [%s]", c->fd, line)); | |
731 | switch(c->state) { | |
732 | case state_cmdresponse: | |
733 | /* This is the first line of a response */ | |
734 | if(!(line[0] >= '0' && line[0] <= '9' | |
735 | && line[1] >= '0' && line[1] <= '9' | |
736 | && line[2] >= '0' && line[2] <= '9' | |
737 | && line[3] == ' ')) | |
738 | fatal(0, "invalid response from server: %s", line); | |
739 | c->rc = (line[0] * 10 + line[1]) * 10 + line[2] - 111 * '0'; | |
740 | c->line = line; | |
741 | switch(c->rc % 10) { | |
742 | case 3: | |
743 | /* We need to collect the body. */ | |
744 | c->state = state_body; | |
6a06a735 | 745 | vector_init(&c->vec); |
460b9539 | 746 | break; |
747 | case 4: | |
748 | assert(c->log_callbacks != 0); | |
749 | if(c->log_callbacks->connected) | |
750 | c->log_callbacks->connected(c->log_v); | |
751 | c->state = state_log; | |
752 | break; | |
753 | default: | |
754 | /* We've got the whole response. Go into the idle state so the state | |
755 | * machine knows we're done and then call the operation callback. */ | |
756 | complete(c); | |
757 | break; | |
758 | } | |
759 | break; | |
760 | case state_body: | |
761 | if(strcmp(line, ".")) { | |
762 | /* A line from the body */ | |
763 | vector_append(&c->vec, line + (line[0] == '.')); | |
764 | } else { | |
765 | /* End of the body. */ | |
766 | vector_terminate(&c->vec); | |
767 | complete(c); | |
768 | } | |
769 | break; | |
770 | case state_log: | |
771 | if(strcmp(line, ".")) { | |
772 | logline(c, line + (line[0] == '.')); | |
773 | } else | |
774 | complete(c); | |
775 | break; | |
776 | default: | |
777 | assert(!"wrong state for location"); | |
778 | break; | |
779 | } | |
780 | } | |
781 | ||
782 | /* Called when an operation completes */ | |
783 | static void complete(disorder_eclient *c) { | |
784 | struct operation *op; | |
785 | ||
786 | D(("complete")); | |
787 | /* Pop the operation off the queue */ | |
788 | op = c->ops; | |
789 | c->ops = op->next; | |
790 | if(c->opstail == &op->next) | |
791 | c->opstail = &c->ops; | |
792 | /* If we've pipelined a command ahead then we go straight to cmdresponser. | |
793 | * Otherwise we go to idle, which will arrange further sends. */ | |
794 | c->state = c->ops && c->ops->sent ? state_cmdresponse : state_idle; | |
795 | op->opcallback(c, op); | |
796 | /* Note that we always call the opcallback even on error, though command | |
797 | * opcallbacks generally always do the same error handling, i.e. just call | |
798 | * protocol_error(). It's the auth* opcallbacks that have different | |
799 | * behaviour. */ | |
800 | } | |
801 | ||
802 | /* Operation setup ***********************************************************/ | |
803 | ||
804 | static void stash_command_vector(disorder_eclient *c, | |
805 | int queuejump, | |
806 | operation_callback *opcallback, | |
807 | void (*completed)(), | |
808 | void *v, | |
53740beb RK |
809 | int nbody, |
810 | char **body, | |
460b9539 | 811 | int ncmd, |
812 | char **cmd) { | |
813 | struct operation *op = xmalloc(sizeof *op); | |
814 | struct dynstr d; | |
815 | int n; | |
816 | ||
817 | if(cmd) { | |
818 | dynstr_init(&d); | |
819 | for(n = 0; n < ncmd; ++n) { | |
820 | if(n) | |
821 | dynstr_append(&d, ' '); | |
822 | dynstr_append_string(&d, quoteutf8(cmd[n])); | |
823 | } | |
824 | dynstr_append(&d, '\n'); | |
825 | dynstr_terminate(&d); | |
826 | op->cmd = d.vec; | |
827 | } else | |
828 | op->cmd = 0; /* usually, awaiting challenge */ | |
53740beb RK |
829 | if(nbody >= 0) { |
830 | op->body = xcalloc(nbody + 1, sizeof (char *)); | |
831 | for(n = 0; n < nbody; ++n) | |
832 | op->body[n] = xstrdup(body[n]); | |
833 | op->body[n] = 0; | |
834 | } else | |
835 | op->body = NULL; | |
460b9539 | 836 | op->opcallback = opcallback; |
837 | op->completed = completed; | |
838 | op->v = v; | |
839 | op->next = 0; | |
840 | op->client = c; | |
841 | assert(op->sent == 0); | |
842 | if(queuejump) { | |
843 | /* Authentication operations jump the queue of useful commands */ | |
844 | op->next = c->ops; | |
845 | c->ops = op; | |
846 | if(c->opstail == &c->ops) | |
847 | c->opstail = &op->next; | |
848 | for(op = c->ops; op; op = op->next) | |
849 | assert(!op->sent); | |
850 | } else { | |
851 | *c->opstail = op; | |
852 | c->opstail = &op->next; | |
853 | } | |
854 | } | |
855 | ||
856 | static void vstash_command(disorder_eclient *c, | |
857 | int queuejump, | |
858 | operation_callback *opcallback, | |
859 | void (*completed)(), | |
860 | void *v, | |
53740beb RK |
861 | int nbody, |
862 | char **body, | |
460b9539 | 863 | const char *cmd, va_list ap) { |
864 | char *arg; | |
865 | struct vector vec; | |
866 | ||
867 | D(("vstash_command %s", cmd ? cmd : "NULL")); | |
868 | if(cmd) { | |
869 | vector_init(&vec); | |
870 | vector_append(&vec, (char *)cmd); | |
871 | while((arg = va_arg(ap, char *))) | |
872 | vector_append(&vec, arg); | |
873 | stash_command_vector(c, queuejump, opcallback, completed, v, | |
53740beb | 874 | nbody, body, vec.nvec, vec.vec); |
460b9539 | 875 | } else |
53740beb RK |
876 | stash_command_vector(c, queuejump, opcallback, completed, v, |
877 | nbody, body, | |
878 | 0, 0); | |
460b9539 | 879 | } |
880 | ||
881 | static void stash_command(disorder_eclient *c, | |
882 | int queuejump, | |
883 | operation_callback *opcallback, | |
884 | void (*completed)(), | |
885 | void *v, | |
53740beb RK |
886 | int nbody, |
887 | char **body, | |
460b9539 | 888 | const char *cmd, |
889 | ...) { | |
890 | va_list ap; | |
891 | ||
892 | va_start(ap, cmd); | |
53740beb | 893 | vstash_command(c, queuejump, opcallback, completed, v, nbody, body, cmd, ap); |
460b9539 | 894 | va_end(ap); |
895 | } | |
896 | ||
897 | /* Command support ***********************************************************/ | |
898 | ||
06bfbba4 RK |
899 | static const char *errorstring(disorder_eclient *c) { |
900 | char *s; | |
901 | ||
902 | byte_xasprintf(&s, "%s: %s: %d", c->ident, c->line, c->rc); | |
903 | return s; | |
904 | } | |
905 | ||
7b32e917 | 906 | /* for commands with a quoted string response */ |
460b9539 | 907 | static void string_response_opcallback(disorder_eclient *c, |
908 | struct operation *op) { | |
06bfbba4 RK |
909 | disorder_eclient_string_response *completed |
910 | = (disorder_eclient_string_response *)op->completed; | |
911 | ||
460b9539 | 912 | D(("string_response_callback")); |
1bd1b63c | 913 | if(c->rc / 100 == 2 || c->rc == 555) { |
7b32e917 | 914 | if(op->completed) { |
1bd1b63c | 915 | if(c->rc == 555) |
06bfbba4 | 916 | completed(op->v, NULL, NULL); |
1bd1b63c | 917 | else if(c->protocol >= 2) { |
b8b4ef7f | 918 | char **rr = split(c->line + 4, 0, SPLIT_QUOTES, 0, 0); |
919 | ||
920 | if(rr && *rr) | |
06bfbba4 | 921 | completed(op->v, NULL, *rr); |
b8b4ef7f | 922 | else |
06bfbba4 RK |
923 | /* TODO error message a is bit lame but generally indicates a server |
924 | * bug rather than anything the user can address */ | |
925 | completed(op->v, "error parsing response", NULL); | |
b8b4ef7f | 926 | } else |
06bfbba4 | 927 | completed(op->v, NULL, c->line + 4); |
7b32e917 | 928 | } |
460b9539 | 929 | } else |
06bfbba4 | 930 | completed(op->v, errorstring(c), NULL); |
460b9539 | 931 | } |
932 | ||
933 | /* for commands with a simple integer response */ | |
934 | static void integer_response_opcallback(disorder_eclient *c, | |
935 | struct operation *op) { | |
658c8a35 RK |
936 | disorder_eclient_integer_response *completed |
937 | = (disorder_eclient_integer_response *)op->completed; | |
938 | ||
460b9539 | 939 | D(("string_response_callback")); |
940 | if(c->rc / 100 == 2) { | |
658c8a35 RK |
941 | long n; |
942 | int e; | |
943 | ||
944 | e = xstrtol(&n, c->line + 4, 0, 10); | |
945 | if(e) | |
946 | completed(op->v, strerror(e), 0); | |
947 | else | |
948 | completed(op->v, 0, n); | |
460b9539 | 949 | } else |
658c8a35 | 950 | completed(op->v, errorstring(c), 0); |
460b9539 | 951 | } |
952 | ||
953 | /* for commands with no response */ | |
954 | static void no_response_opcallback(disorder_eclient *c, | |
955 | struct operation *op) { | |
53fa91bb RK |
956 | disorder_eclient_no_response *completed |
957 | = (disorder_eclient_no_response *)op->completed; | |
958 | ||
460b9539 | 959 | D(("no_response_callback")); |
53fa91bb RK |
960 | if(c->rc / 100 == 2) |
961 | completed(op->v, NULL); | |
962 | else | |
963 | completed(op->v, errorstring(c)); | |
460b9539 | 964 | } |
965 | ||
966 | /* error callback for queue_unmarshall */ | |
967 | static void eclient_queue_error(const char *msg, | |
968 | void *u) { | |
969 | struct operation *op = u; | |
970 | ||
1f3ce240 | 971 | /* TODO don't use protocol_error here */ |
460b9539 | 972 | protocol_error(op->client, op, -1, "error parsing queue entry: %s", msg); |
973 | } | |
974 | ||
975 | /* for commands that expect a queue dump */ | |
976 | static void queue_response_opcallback(disorder_eclient *c, | |
977 | struct operation *op) { | |
3035257f RK |
978 | disorder_eclient_queue_response *const completed |
979 | = (disorder_eclient_queue_response *)op->completed; | |
460b9539 | 980 | int n; |
3035257f | 981 | int parse_failed = 0; |
460b9539 | 982 | struct queue_entry *q, *qh = 0, **qtail = &qh, *qlast = 0; |
983 | ||
984 | D(("queue_response_callback")); | |
985 | if(c->rc / 100 == 2) { | |
986 | /* parse the queue */ | |
987 | for(n = 0; n < c->vec.nvec; ++n) { | |
988 | q = xmalloc(sizeof *q); | |
989 | D(("queue_unmarshall %s", c->vec.vec[n])); | |
4190a4d9 | 990 | if(!queue_unmarshall(q, c->vec.vec[n], NULL, op)) { |
460b9539 | 991 | q->prev = qlast; |
992 | *qtail = q; | |
993 | qtail = &q->next; | |
994 | qlast = q; | |
3035257f RK |
995 | } else |
996 | parse_failed = 1; | |
460b9539 | 997 | } |
3035257f RK |
998 | /* Currently we pass the partial queue to the callback along with the |
999 | * error. This might not be very useful in practice... */ | |
1000 | if(parse_failed) | |
1001 | completed(op->v, "cannot parse result", qh); | |
1002 | else | |
1003 | completed(op->v, 0, qh); | |
460b9539 | 1004 | } else |
3035257f | 1005 | completed(op->v, errorstring(c), 0); |
460b9539 | 1006 | } |
1007 | ||
1008 | /* for 'playing' */ | |
1009 | static void playing_response_opcallback(disorder_eclient *c, | |
1010 | struct operation *op) { | |
3035257f RK |
1011 | disorder_eclient_queue_response *const completed |
1012 | = (disorder_eclient_queue_response *)op->completed; | |
460b9539 | 1013 | struct queue_entry *q; |
1014 | ||
1015 | D(("playing_response_callback")); | |
1016 | if(c->rc / 100 == 2) { | |
1017 | switch(c->rc % 10) { | |
1018 | case 2: | |
1019 | if(queue_unmarshall(q = xmalloc(sizeof *q), c->line + 4, | |
4190a4d9 | 1020 | NULL, c)) |
3035257f RK |
1021 | completed(op->v, "cannot parse result", 0); |
1022 | else | |
1023 | completed(op->v, 0, q); | |
460b9539 | 1024 | break; |
1025 | case 9: | |
3035257f | 1026 | completed(op->v, 0, 0); |
460b9539 | 1027 | break; |
1028 | default: | |
3035257f RK |
1029 | completed(op->v, errorstring(c), 0); |
1030 | break; | |
460b9539 | 1031 | } |
460b9539 | 1032 | } else |
3035257f | 1033 | completed(op->v, errorstring(c), 0); |
460b9539 | 1034 | } |
1035 | ||
1036 | /* for commands that expect a list of some sort */ | |
1037 | static void list_response_opcallback(disorder_eclient *c, | |
1038 | struct operation *op) { | |
4190a4d9 RK |
1039 | disorder_eclient_list_response *const completed = |
1040 | (disorder_eclient_list_response *)op->completed; | |
1041 | ||
460b9539 | 1042 | D(("list_response_callback")); |
4190a4d9 RK |
1043 | if(c->rc / 100 == 2) |
1044 | completed(op->v, NULL, c->vec.nvec, c->vec.vec); | |
53740beb RK |
1045 | else if(c->rc == 555) |
1046 | completed(op->v, NULL, -1, NULL); | |
4190a4d9 RK |
1047 | else |
1048 | completed(op->v, errorstring(c), 0, 0); | |
460b9539 | 1049 | } |
1050 | ||
1051 | /* for volume */ | |
1052 | static void volume_response_opcallback(disorder_eclient *c, | |
1053 | struct operation *op) { | |
699517af RK |
1054 | disorder_eclient_volume_response *completed |
1055 | = (disorder_eclient_volume_response *)op->completed; | |
460b9539 | 1056 | int l, r; |
1057 | ||
1058 | D(("volume_response_callback")); | |
1059 | if(c->rc / 100 == 2) { | |
1060 | if(op->completed) { | |
1061 | if(sscanf(c->line + 4, "%d %d", &l, &r) != 2 || l < 0 || r < 0) | |
699517af | 1062 | completed(op->v, "cannot parse volume response", 0, 0); |
460b9539 | 1063 | else |
699517af | 1064 | completed(op->v, 0, l, r); |
460b9539 | 1065 | } |
1066 | } else | |
699517af | 1067 | completed(op->v, errorstring(c), 0, 0); |
460b9539 | 1068 | } |
1069 | ||
1070 | static int simple(disorder_eclient *c, | |
1071 | operation_callback *opcallback, | |
1072 | void (*completed)(), | |
1073 | void *v, | |
1074 | const char *cmd, ...) { | |
1075 | va_list ap; | |
1076 | ||
1077 | va_start(ap, cmd); | |
53740beb RK |
1078 | vstash_command(c, 0/*queuejump*/, opcallback, completed, v, -1, 0, cmd, ap); |
1079 | va_end(ap); | |
1080 | /* Give the state machine a kick, since we might be in state_idle */ | |
1081 | disorder_eclient_polled(c, 0); | |
1082 | return 0; | |
1083 | } | |
1084 | ||
1085 | static int simple_body(disorder_eclient *c, | |
1086 | operation_callback *opcallback, | |
1087 | void (*completed)(), | |
1088 | void *v, | |
1089 | int nbody, | |
1090 | char **body, | |
1091 | const char *cmd, ...) { | |
1092 | va_list ap; | |
1093 | ||
1094 | va_start(ap, cmd); | |
1095 | vstash_command(c, 0/*queuejump*/, opcallback, completed, v, nbody, body, cmd, ap); | |
460b9539 | 1096 | va_end(ap); |
1097 | /* Give the state machine a kick, since we might be in state_idle */ | |
1098 | disorder_eclient_polled(c, 0); | |
1099 | return 0; | |
1100 | } | |
1101 | ||
1102 | /* Commands ******************************************************************/ | |
1103 | ||
1104 | int disorder_eclient_version(disorder_eclient *c, | |
1105 | disorder_eclient_string_response *completed, | |
1106 | void *v) { | |
1107 | return simple(c, string_response_opcallback, (void (*)())completed, v, | |
1108 | "version", (char *)0); | |
1109 | } | |
1110 | ||
1111 | int disorder_eclient_namepart(disorder_eclient *c, | |
1112 | disorder_eclient_string_response *completed, | |
1113 | const char *track, | |
1114 | const char *context, | |
1115 | const char *part, | |
1116 | void *v) { | |
1117 | return simple(c, string_response_opcallback, (void (*)())completed, v, | |
1118 | "part", track, context, part, (char *)0); | |
1119 | } | |
1120 | ||
1121 | int disorder_eclient_play(disorder_eclient *c, | |
1122 | const char *track, | |
1123 | disorder_eclient_no_response *completed, | |
1124 | void *v) { | |
1125 | return simple(c, no_response_opcallback, (void (*)())completed, v, | |
1126 | "play", track, (char *)0); | |
1127 | } | |
1128 | ||
1129 | int disorder_eclient_pause(disorder_eclient *c, | |
1130 | disorder_eclient_no_response *completed, | |
1131 | void *v) { | |
1132 | return simple(c, no_response_opcallback, (void (*)())completed, v, | |
1133 | "pause", (char *)0); | |
1134 | } | |
1135 | ||
1136 | int disorder_eclient_resume(disorder_eclient *c, | |
1137 | disorder_eclient_no_response *completed, | |
1138 | void *v) { | |
1139 | return simple(c, no_response_opcallback, (void (*)())completed, v, | |
1140 | "resume", (char *)0); | |
1141 | } | |
1142 | ||
1143 | int disorder_eclient_scratch(disorder_eclient *c, | |
1144 | const char *id, | |
1145 | disorder_eclient_no_response *completed, | |
1146 | void *v) { | |
1147 | return simple(c, no_response_opcallback, (void (*)())completed, v, | |
1148 | "scratch", id, (char *)0); | |
1149 | } | |
1150 | ||
1151 | int disorder_eclient_scratch_playing(disorder_eclient *c, | |
1152 | disorder_eclient_no_response *completed, | |
1153 | void *v) { | |
1154 | return disorder_eclient_scratch(c, 0, completed, v); | |
1155 | } | |
1156 | ||
1157 | int disorder_eclient_remove(disorder_eclient *c, | |
1158 | const char *id, | |
1159 | disorder_eclient_no_response *completed, | |
1160 | void *v) { | |
1161 | return simple(c, no_response_opcallback, (void (*)())completed, v, | |
1162 | "remove", id, (char *)0); | |
1163 | } | |
1164 | ||
1165 | int disorder_eclient_moveafter(disorder_eclient *c, | |
1166 | const char *target, | |
1167 | int nids, | |
1168 | const char **ids, | |
1169 | disorder_eclient_no_response *completed, | |
1170 | void *v) { | |
1171 | struct vector vec; | |
1172 | int n; | |
1173 | ||
1174 | vector_init(&vec); | |
1175 | vector_append(&vec, (char *)"moveafter"); | |
1176 | vector_append(&vec, (char *)target); | |
1177 | for(n = 0; n < nids; ++n) | |
1178 | vector_append(&vec, (char *)ids[n]); | |
1179 | stash_command_vector(c, 0/*queuejump*/, no_response_opcallback, completed, v, | |
53740beb | 1180 | -1, 0, vec.nvec, vec.vec); |
460b9539 | 1181 | disorder_eclient_polled(c, 0); |
1182 | return 0; | |
1183 | } | |
1184 | ||
1185 | int disorder_eclient_recent(disorder_eclient *c, | |
1186 | disorder_eclient_queue_response *completed, | |
1187 | void *v) { | |
1188 | return simple(c, queue_response_opcallback, (void (*)())completed, v, | |
1189 | "recent", (char *)0); | |
1190 | } | |
1191 | ||
1192 | int disorder_eclient_queue(disorder_eclient *c, | |
1193 | disorder_eclient_queue_response *completed, | |
1194 | void *v) { | |
1195 | return simple(c, queue_response_opcallback, (void (*)())completed, v, | |
1196 | "queue", (char *)0); | |
1197 | } | |
1198 | ||
1199 | int disorder_eclient_files(disorder_eclient *c, | |
1200 | disorder_eclient_list_response *completed, | |
1201 | const char *dir, | |
1202 | const char *re, | |
1203 | void *v) { | |
1204 | return simple(c, list_response_opcallback, (void (*)())completed, v, | |
1205 | "files", dir, re, (char *)0); | |
1206 | } | |
1207 | ||
1208 | int disorder_eclient_dirs(disorder_eclient *c, | |
1209 | disorder_eclient_list_response *completed, | |
1210 | const char *dir, | |
1211 | const char *re, | |
1212 | void *v) { | |
1213 | return simple(c, list_response_opcallback, (void (*)())completed, v, | |
1214 | "dirs", dir, re, (char *)0); | |
1215 | } | |
1216 | ||
1217 | int disorder_eclient_playing(disorder_eclient *c, | |
1218 | disorder_eclient_queue_response *completed, | |
1219 | void *v) { | |
1220 | return simple(c, playing_response_opcallback, (void (*)())completed, v, | |
1221 | "playing", (char *)0); | |
1222 | } | |
1223 | ||
1224 | int disorder_eclient_length(disorder_eclient *c, | |
1225 | disorder_eclient_integer_response *completed, | |
1226 | const char *track, | |
1227 | void *v) { | |
1228 | return simple(c, integer_response_opcallback, (void (*)())completed, v, | |
1229 | "length", track, (char *)0); | |
1230 | } | |
1231 | ||
1232 | int disorder_eclient_volume(disorder_eclient *c, | |
1233 | disorder_eclient_volume_response *completed, | |
1234 | int l, int r, | |
1235 | void *v) { | |
1236 | char sl[64], sr[64]; | |
1237 | ||
1238 | if(l < 0 && r < 0) { | |
1239 | return simple(c, volume_response_opcallback, (void (*)())completed, v, | |
1240 | "volume", (char *)0); | |
1241 | } else if(l >= 0 && r >= 0) { | |
1242 | assert(l <= 100); | |
1243 | assert(r <= 100); | |
1244 | byte_snprintf(sl, sizeof sl, "%d", l); | |
1245 | byte_snprintf(sr, sizeof sr, "%d", r); | |
1246 | return simple(c, volume_response_opcallback, (void (*)())completed, v, | |
1247 | "volume", sl, sr, (char *)0); | |
1248 | } else { | |
1249 | assert(!"invalid arguments to disorder_eclient_volume"); | |
1250 | return -1; /* gcc is being dim */ | |
1251 | } | |
1252 | } | |
1253 | ||
1254 | int disorder_eclient_enable(disorder_eclient *c, | |
1255 | disorder_eclient_no_response *completed, | |
1256 | void *v) { | |
1257 | return simple(c, no_response_opcallback, (void (*)())completed, v, | |
1258 | "enable", (char *)0); | |
1259 | } | |
1260 | ||
1261 | int disorder_eclient_disable(disorder_eclient *c, | |
1262 | disorder_eclient_no_response *completed, | |
1263 | void *v){ | |
1264 | return simple(c, no_response_opcallback, (void (*)())completed, v, | |
1265 | "disable", (char *)0); | |
1266 | } | |
1267 | ||
1268 | int disorder_eclient_random_enable(disorder_eclient *c, | |
1269 | disorder_eclient_no_response *completed, | |
1270 | void *v){ | |
1271 | return simple(c, no_response_opcallback, (void (*)())completed, v, | |
1272 | "random-enable", (char *)0); | |
1273 | } | |
1274 | ||
1275 | int disorder_eclient_random_disable(disorder_eclient *c, | |
1276 | disorder_eclient_no_response *completed, | |
1277 | void *v){ | |
1278 | return simple(c, no_response_opcallback, (void (*)())completed, v, | |
1279 | "random-disable", (char *)0); | |
1280 | } | |
1281 | ||
1282 | int disorder_eclient_get(disorder_eclient *c, | |
1283 | disorder_eclient_string_response *completed, | |
1284 | const char *track, const char *pref, | |
1285 | void *v) { | |
1286 | return simple(c, string_response_opcallback, (void (*)())completed, v, | |
1287 | "get", track, pref, (char *)0); | |
1288 | } | |
1289 | ||
1290 | int disorder_eclient_set(disorder_eclient *c, | |
1291 | disorder_eclient_no_response *completed, | |
1292 | const char *track, const char *pref, | |
1293 | const char *value, | |
1294 | void *v) { | |
1295 | return simple(c, no_response_opcallback, (void (*)())completed, v, | |
1296 | "set", track, pref, value, (char *)0); | |
1297 | } | |
1298 | ||
1299 | int disorder_eclient_unset(disorder_eclient *c, | |
1300 | disorder_eclient_no_response *completed, | |
1301 | const char *track, const char *pref, | |
1302 | void *v) { | |
1303 | return simple(c, no_response_opcallback, (void (*)())completed, v, | |
1304 | "unset", track, pref, (char *)0); | |
1305 | } | |
1306 | ||
1307 | int disorder_eclient_resolve(disorder_eclient *c, | |
1308 | disorder_eclient_string_response *completed, | |
1309 | const char *track, | |
1310 | void *v) { | |
1311 | return simple(c, string_response_opcallback, (void (*)())completed, v, | |
1312 | "resolve", track, (char *)0); | |
1313 | } | |
1314 | ||
1315 | int disorder_eclient_search(disorder_eclient *c, | |
1316 | disorder_eclient_list_response *completed, | |
1317 | const char *terms, | |
1318 | void *v) { | |
1319 | if(!split(terms, 0, SPLIT_QUOTES, 0, 0)) return -1; | |
1320 | return simple(c, list_response_opcallback, (void (*)())completed, v, | |
1321 | "search", terms, (char *)0); | |
1322 | } | |
1323 | ||
7858930d | 1324 | int disorder_eclient_nop(disorder_eclient *c, |
1325 | disorder_eclient_no_response *completed, | |
1326 | void *v) { | |
1327 | return simple(c, no_response_opcallback, (void (*)())completed, v, | |
1328 | "nop", (char *)0); | |
1329 | } | |
1330 | ||
2a10b70b RK |
1331 | /** @brief Get the last @p max added tracks |
1332 | * @param c Client | |
1333 | * @param completed Called with list | |
1334 | * @param max Number of tracks to get, 0 for all | |
1335 | * @param v Passed to @p completed | |
1336 | * | |
1337 | * The first track in the list is the most recently added. | |
1338 | */ | |
1339 | int disorder_eclient_new_tracks(disorder_eclient *c, | |
1340 | disorder_eclient_list_response *completed, | |
1341 | int max, | |
1342 | void *v) { | |
1343 | char limit[32]; | |
1344 | ||
1345 | sprintf(limit, "%d", max); | |
1346 | return simple(c, list_response_opcallback, (void (*)())completed, v, | |
1347 | "new", limit, (char *)0); | |
1348 | } | |
1349 | ||
a99c4e9a RK |
1350 | static void rtp_response_opcallback(disorder_eclient *c, |
1351 | struct operation *op) { | |
4190a4d9 RK |
1352 | disorder_eclient_list_response *const completed = |
1353 | (disorder_eclient_list_response *)op->completed; | |
a99c4e9a RK |
1354 | D(("rtp_response_opcallback")); |
1355 | if(c->rc / 100 == 2) { | |
4190a4d9 RK |
1356 | int nvec; |
1357 | char **vec = split(c->line + 4, &nvec, SPLIT_QUOTES, 0, 0); | |
a99c4e9a | 1358 | |
4190a4d9 RK |
1359 | if(vec) |
1360 | completed(op->v, NULL, nvec, vec); | |
1361 | else | |
1362 | completed(op->v, "error parsing response", 0, 0); | |
a99c4e9a | 1363 | } else |
4190a4d9 | 1364 | completed(op->v, errorstring(c), 0, 0); |
a99c4e9a RK |
1365 | } |
1366 | ||
1367 | /** @brief Determine the RTP target address | |
1368 | * @param c Client | |
1369 | * @param completed Called with address details | |
1370 | * @param v Passed to @p completed | |
1371 | * | |
1372 | * The address details will be two elements, the first being the hostname and | |
1373 | * the second the service (port). | |
1374 | */ | |
1375 | int disorder_eclient_rtp_address(disorder_eclient *c, | |
1376 | disorder_eclient_list_response *completed, | |
1377 | void *v) { | |
1378 | return simple(c, rtp_response_opcallback, (void (*)())completed, v, | |
1379 | "rtp-address", (char *)0); | |
1380 | } | |
1381 | ||
ffc4dbaf RK |
1382 | /** @brief Get the list of users |
1383 | * @param c Client | |
1384 | * @param completed Called with list of users | |
1385 | * @param v Passed to @p completed | |
1386 | * | |
1387 | * The user list is not sorted in any particular order. | |
1388 | */ | |
1389 | int disorder_eclient_users(disorder_eclient *c, | |
1390 | disorder_eclient_list_response *completed, | |
1391 | void *v) { | |
1392 | return simple(c, list_response_opcallback, (void (*)())completed, v, | |
1393 | "users", (char *)0); | |
1394 | } | |
1395 | ||
4aa8a0a4 RK |
1396 | /** @brief Delete a user |
1397 | * @param c Client | |
1398 | * @param completed Called on completion | |
1399 | * @param user User to delete | |
1400 | * @param v Passed to @p completed | |
1401 | */ | |
1402 | int disorder_eclient_deluser(disorder_eclient *c, | |
1403 | disorder_eclient_no_response *completed, | |
1404 | const char *user, | |
1405 | void *v) { | |
1406 | return simple(c, no_response_opcallback, (void (*)())completed, v, | |
1407 | "deluser", user, (char *)0); | |
1408 | } | |
1409 | ||
e61aef23 RK |
1410 | /** @brief Get a user property |
1411 | * @param c Client | |
1412 | * @param completed Called on completion | |
1413 | * @param user User to look up | |
1414 | * @param property Property to look up | |
1415 | * @param v Passed to @p completed | |
1416 | */ | |
1417 | int disorder_eclient_userinfo(disorder_eclient *c, | |
1418 | disorder_eclient_string_response *completed, | |
1419 | const char *user, | |
1420 | const char *property, | |
1421 | void *v) { | |
1422 | return simple(c, string_response_opcallback, (void (*)())completed, v, | |
1423 | "userinfo", user, property, (char *)0); | |
1424 | } | |
1425 | ||
1426 | /** @brief Modify a user property | |
1427 | * @param c Client | |
1428 | * @param completed Called on completion | |
1429 | * @param user User to modify | |
1430 | * @param property Property to modify | |
1431 | * @param value New property value | |
1432 | * @param v Passed to @p completed | |
1433 | */ | |
1434 | int disorder_eclient_edituser(disorder_eclient *c, | |
1435 | disorder_eclient_no_response *completed, | |
1436 | const char *user, | |
1437 | const char *property, | |
1438 | const char *value, | |
1439 | void *v) { | |
1440 | return simple(c, no_response_opcallback, (void (*)())completed, v, | |
1441 | "edituser", user, property, value, (char *)0); | |
1442 | } | |
1443 | ||
0d719587 RK |
1444 | /** @brief Create a new user |
1445 | * @param c Client | |
1446 | * @param completed Called on completion | |
1447 | * @param user User to create | |
1448 | * @param password Initial password | |
1449 | * @param rights Initial rights or NULL | |
1450 | * @param v Passed to @p completed | |
1451 | */ | |
1452 | int disorder_eclient_adduser(disorder_eclient *c, | |
1453 | disorder_eclient_no_response *completed, | |
1454 | const char *user, | |
1455 | const char *password, | |
1456 | const char *rights, | |
1457 | void *v) { | |
1458 | return simple(c, no_response_opcallback, (void (*)())completed, v, | |
1459 | "adduser", user, password, rights, (char *)0); | |
1460 | } | |
e61aef23 | 1461 | |
53740beb RK |
1462 | /** @brief Get the list of playlists |
1463 | * @param c Client | |
1464 | * @param completed Called with list of playlists | |
1465 | * @param v Passed to @p completed | |
1466 | * | |
1467 | * The playlist list is not sorted in any particular order. | |
1468 | */ | |
1469 | int disorder_eclient_playlists(disorder_eclient *c, | |
1470 | disorder_eclient_list_response *completed, | |
1471 | void *v) { | |
1472 | return simple(c, list_response_opcallback, (void (*)())completed, v, | |
1473 | "playlists", (char *)0); | |
1474 | } | |
1475 | ||
1476 | /** @brief Delete a playlist | |
1477 | * @param c Client | |
1478 | * @param completed Called on completion | |
1479 | * @param playlist Playlist to delete | |
1480 | * @param v Passed to @p completed | |
1481 | */ | |
1482 | int disorder_eclient_playlist_delete(disorder_eclient *c, | |
1483 | disorder_eclient_no_response *completed, | |
1484 | const char *playlist, | |
1485 | void *v) { | |
1486 | return simple(c, no_response_opcallback, (void (*)())completed, v, | |
1487 | "playlist-delete", playlist, (char *)0); | |
1488 | } | |
1489 | ||
1490 | /** @brief Lock a playlist | |
1491 | * @param c Client | |
1492 | * @param completed Called on completion | |
1493 | * @param playlist Playlist to lock | |
1494 | * @param v Passed to @p completed | |
1495 | */ | |
1496 | int disorder_eclient_playlist_lock(disorder_eclient *c, | |
1497 | disorder_eclient_no_response *completed, | |
1498 | const char *playlist, | |
1499 | void *v) { | |
1500 | return simple(c, no_response_opcallback, (void (*)())completed, v, | |
1501 | "playlist-lock", playlist, (char *)0); | |
1502 | } | |
1503 | ||
1504 | /** @brief Unlock the locked a playlist | |
1505 | * @param c Client | |
1506 | * @param completed Called on completion | |
1507 | * @param v Passed to @p completed | |
1508 | */ | |
1509 | int disorder_eclient_playlist_unlock(disorder_eclient *c, | |
1510 | disorder_eclient_no_response *completed, | |
1511 | void *v) { | |
1512 | return simple(c, no_response_opcallback, (void (*)())completed, v, | |
1513 | "playlist-unlock", (char *)0); | |
1514 | } | |
1515 | ||
1516 | /** @brief Set a playlist's sharing | |
1517 | * @param c Client | |
1518 | * @param completed Called on completion | |
1519 | * @param playlist Playlist to modify | |
1520 | * @param sharing @c "public" or @c "private" | |
1521 | * @param v Passed to @p completed | |
1522 | */ | |
1523 | int disorder_eclient_playlist_set_share(disorder_eclient *c, | |
1524 | disorder_eclient_no_response *completed, | |
1525 | const char *playlist, | |
1526 | const char *sharing, | |
1527 | void *v) { | |
1528 | return simple(c, no_response_opcallback, (void (*)())completed, v, | |
1529 | "playlist-set-share", playlist, sharing, (char *)0); | |
1530 | } | |
1531 | ||
1532 | /** @brief Get a playlist's sharing | |
1533 | * @param c Client | |
1534 | * @param completed Called with sharing status | |
1535 | * @param playlist Playlist to inspect | |
1536 | * @param v Passed to @p completed | |
1537 | */ | |
1538 | int disorder_eclient_playlist_get_share(disorder_eclient *c, | |
1539 | disorder_eclient_string_response *completed, | |
1540 | const char *playlist, | |
1541 | void *v) { | |
1542 | return simple(c, string_response_opcallback, (void (*)())completed, v, | |
1543 | "playlist-get-share", playlist, (char *)0); | |
1544 | } | |
1545 | ||
1546 | /** @brief Set a playlist | |
1547 | * @param c Client | |
1548 | * @param completed Called on completion | |
1549 | * @param playlist Playlist to modify | |
1550 | * @param tracks List of tracks | |
1551 | * @param ntracks Number of tracks | |
1552 | * @param v Passed to @p completed | |
1553 | */ | |
1554 | int disorder_eclient_playlist_set(disorder_eclient *c, | |
1555 | disorder_eclient_no_response *completed, | |
1556 | const char *playlist, | |
1557 | char **tracks, | |
1558 | int ntracks, | |
1559 | void *v) { | |
1560 | return simple_body(c, no_response_opcallback, (void (*)())completed, v, | |
1561 | ntracks, tracks, | |
1562 | "playlist-set", playlist, (char *)0); | |
1563 | } | |
1564 | ||
1565 | /** @brief Get a playlist's contents | |
1566 | * @param c Client | |
1567 | * @param completed Called with playlist contents | |
1568 | * @param playlist Playlist to inspect | |
1569 | * @param v Passed to @p completed | |
1570 | */ | |
1571 | int disorder_eclient_playlist_get(disorder_eclient *c, | |
1572 | disorder_eclient_list_response *completed, | |
1573 | const char *playlist, | |
1574 | void *v) { | |
1575 | return simple(c, list_response_opcallback, (void (*)())completed, v, | |
1576 | "playlist-get", playlist, (char *)0); | |
1577 | } | |
1578 | ||
460b9539 | 1579 | /* Log clients ***************************************************************/ |
1580 | ||
60b95b6e | 1581 | /** @brief Monitor the server log |
1582 | * @param c Client | |
1583 | * @param callbacks Functions to call when anything happens | |
1584 | * @param v Passed to @p callbacks functions | |
1585 | * | |
1586 | * Once a client is being used for logging it cannot be used for anything else. | |
1587 | * There is magic in authuser_opcallback() to re-submit the @c log command | |
1588 | * after reconnection. | |
6d1302f0 RK |
1589 | * |
1590 | * NB that the @c state callback may be called from within this function, | |
1591 | * i.e. not solely later on from the event loop callback. | |
60b95b6e | 1592 | */ |
460b9539 | 1593 | int disorder_eclient_log(disorder_eclient *c, |
1594 | const disorder_eclient_log_callbacks *callbacks, | |
1595 | void *v) { | |
1596 | if(c->log_callbacks) return -1; | |
1597 | c->log_callbacks = callbacks; | |
1598 | c->log_v = v; | |
6d1302f0 RK |
1599 | /* Repoort initial state */ |
1600 | if(c->log_callbacks->state) | |
1601 | c->log_callbacks->state(c->log_v, c->statebits); | |
460b9539 | 1602 | stash_command(c, 0/*queuejump*/, log_opcallback, 0/*completed*/, v, |
53740beb | 1603 | -1, 0, "log", (char *)0); |
bcc46dc3 | 1604 | disorder_eclient_polled(c, 0); |
460b9539 | 1605 | return 0; |
1606 | } | |
1607 | ||
1608 | /* If we get here we've stopped being a log client */ | |
1609 | static void log_opcallback(disorder_eclient *c, | |
1610 | struct operation attribute((unused)) *op) { | |
1611 | D(("log_opcallback")); | |
1612 | c->log_callbacks = 0; | |
1613 | c->log_v = 0; | |
1614 | } | |
1615 | ||
1616 | /* error callback for log line parsing */ | |
1617 | static void logline_error(const char *msg, void *u) { | |
1618 | disorder_eclient *c = u; | |
1f3ce240 | 1619 | /* TODO don't use protocol_error here */ |
460b9539 | 1620 | protocol_error(c, c->ops, -1, "error parsing log line: %s", msg); |
1621 | } | |
1622 | ||
1623 | /* process a single log line */ | |
1624 | static void logline(disorder_eclient *c, const char *line) { | |
1625 | int nvec, n; | |
1626 | char **vec; | |
1627 | uintmax_t when; | |
1628 | ||
6cd155a8 | 1629 | D(("logline [%s]", line)); |
460b9539 | 1630 | vec = split(line, &nvec, SPLIT_QUOTES, logline_error, c); |
1631 | if(nvec < 2) return; /* probably an error, already | |
1632 | * reported */ | |
1633 | if(sscanf(vec[0], "%"SCNxMAX, &when) != 1) { | |
1634 | /* probably the wrong side of a format change */ | |
1f3ce240 | 1635 | /* TODO don't use protocol_error here */ |
460b9539 | 1636 | protocol_error(c, c->ops, -1, "invalid log timestamp '%s'", vec[0]); |
1637 | return; | |
1638 | } | |
1639 | /* TODO: do something with the time */ | |
fa7d5980 | 1640 | //fprintf(stderr, "log key: %s\n", vec[1]); |
ba937f01 | 1641 | n = TABLE_FIND(logentry_handlers, name, vec[1]); |
fa7d5980 RK |
1642 | if(n < 0) { |
1643 | //fprintf(stderr, "...not found\n"); | |
1644 | return; /* probably a future command */ | |
1645 | } | |
460b9539 | 1646 | vec += 2; |
1647 | nvec -= 2; | |
fa7d5980 RK |
1648 | if(nvec < logentry_handlers[n].min || nvec > logentry_handlers[n].max) { |
1649 | //fprintf(stderr, "...wrong # args\n"); | |
460b9539 | 1650 | return; |
fa7d5980 | 1651 | } |
460b9539 | 1652 | logentry_handlers[n].handler(c, nvec, vec); |
1653 | } | |
1654 | ||
1655 | static void logentry_completed(disorder_eclient *c, | |
1656 | int attribute((unused)) nvec, char **vec) { | |
277f7f59 | 1657 | c->statebits &= ~DISORDER_PLAYING; |
bcc46dc3 RK |
1658 | if(c->log_callbacks->completed) |
1659 | c->log_callbacks->completed(c->log_v, vec[0]); | |
8f763f1b RK |
1660 | if(c->log_callbacks->state) |
1661 | c->log_callbacks->state(c->log_v, c->statebits | DISORDER_CONNECTED); | |
460b9539 | 1662 | } |
1663 | ||
1664 | static void logentry_failed(disorder_eclient *c, | |
1665 | int attribute((unused)) nvec, char **vec) { | |
277f7f59 | 1666 | c->statebits &= ~DISORDER_PLAYING; |
bcc46dc3 RK |
1667 | if(c->log_callbacks->failed) |
1668 | c->log_callbacks->failed(c->log_v, vec[0], vec[1]); | |
8f763f1b RK |
1669 | if(c->log_callbacks->state) |
1670 | c->log_callbacks->state(c->log_v, c->statebits | DISORDER_CONNECTED); | |
460b9539 | 1671 | } |
1672 | ||
1673 | static void logentry_moved(disorder_eclient *c, | |
1674 | int attribute((unused)) nvec, char **vec) { | |
bcc46dc3 RK |
1675 | if(c->log_callbacks->moved) |
1676 | c->log_callbacks->moved(c->log_v, vec[0]); | |
460b9539 | 1677 | } |
1678 | ||
1679 | static void logentry_playing(disorder_eclient *c, | |
1680 | int attribute((unused)) nvec, char **vec) { | |
277f7f59 | 1681 | c->statebits |= DISORDER_PLAYING; |
bcc46dc3 RK |
1682 | if(c->log_callbacks->playing) |
1683 | c->log_callbacks->playing(c->log_v, vec[0], vec[1]); | |
8f763f1b RK |
1684 | if(c->log_callbacks->state) |
1685 | c->log_callbacks->state(c->log_v, c->statebits | DISORDER_CONNECTED); | |
460b9539 | 1686 | } |
1687 | ||
1688 | static void logentry_queue(disorder_eclient *c, | |
1689 | int attribute((unused)) nvec, char **vec) { | |
1690 | struct queue_entry *q; | |
1691 | ||
bcc46dc3 | 1692 | if(!c->log_callbacks->queue) return; |
460b9539 | 1693 | q = xmalloc(sizeof *q); |
1694 | if(queue_unmarshall_vec(q, nvec, vec, eclient_queue_error, c)) | |
1695 | return; /* bogus */ | |
1696 | c->log_callbacks->queue(c->log_v, q); | |
1697 | } | |
1698 | ||
1699 | static void logentry_recent_added(disorder_eclient *c, | |
1700 | int attribute((unused)) nvec, char **vec) { | |
1701 | struct queue_entry *q; | |
1702 | ||
1703 | if(!c->log_callbacks->recent_added) return; | |
1704 | q = xmalloc(sizeof *q); | |
1705 | if(queue_unmarshall_vec(q, nvec, vec, eclient_queue_error, c)) | |
1706 | return; /* bogus */ | |
1707 | c->log_callbacks->recent_added(c->log_v, q); | |
1708 | } | |
1709 | ||
1710 | static void logentry_recent_removed(disorder_eclient *c, | |
1711 | int attribute((unused)) nvec, char **vec) { | |
bcc46dc3 RK |
1712 | if(c->log_callbacks->recent_removed) |
1713 | c->log_callbacks->recent_removed(c->log_v, vec[0]); | |
460b9539 | 1714 | } |
1715 | ||
1716 | static void logentry_removed(disorder_eclient *c, | |
1717 | int attribute((unused)) nvec, char **vec) { | |
bcc46dc3 RK |
1718 | if(c->log_callbacks->removed) |
1719 | c->log_callbacks->removed(c->log_v, vec[0], vec[1]); | |
460b9539 | 1720 | } |
1721 | ||
e025abff RK |
1722 | static void logentry_rescanned(disorder_eclient *c, |
1723 | int attribute((unused)) nvec, | |
1724 | char attribute((unused)) **vec) { | |
bcc46dc3 RK |
1725 | if(c->log_callbacks->rescanned) |
1726 | c->log_callbacks->rescanned(c->log_v); | |
e025abff RK |
1727 | } |
1728 | ||
460b9539 | 1729 | static void logentry_scratched(disorder_eclient *c, |
1730 | int attribute((unused)) nvec, char **vec) { | |
277f7f59 | 1731 | c->statebits &= ~DISORDER_PLAYING; |
bcc46dc3 RK |
1732 | if(c->log_callbacks->scratched) |
1733 | c->log_callbacks->scratched(c->log_v, vec[0], vec[1]); | |
8f763f1b RK |
1734 | if(c->log_callbacks->state) |
1735 | c->log_callbacks->state(c->log_v, c->statebits | DISORDER_CONNECTED); | |
460b9539 | 1736 | } |
1737 | ||
58d2aad2 RK |
1738 | static void logentry_user_add(disorder_eclient *c, |
1739 | int attribute((unused)) nvec, char **vec) { | |
1740 | if(c->log_callbacks->user_add) | |
1741 | c->log_callbacks->user_add(c->log_v, vec[0]); | |
1742 | } | |
1743 | ||
1744 | static void logentry_user_confirm(disorder_eclient *c, | |
1745 | int attribute((unused)) nvec, char **vec) { | |
1746 | if(c->log_callbacks->user_confirm) | |
1747 | c->log_callbacks->user_confirm(c->log_v, vec[0]); | |
1748 | } | |
1749 | ||
1750 | static void logentry_user_delete(disorder_eclient *c, | |
1751 | int attribute((unused)) nvec, char **vec) { | |
1752 | if(c->log_callbacks->user_delete) | |
1753 | c->log_callbacks->user_delete(c->log_v, vec[0]); | |
1754 | } | |
1755 | ||
1756 | static void logentry_user_edit(disorder_eclient *c, | |
1757 | int attribute((unused)) nvec, char **vec) { | |
1758 | if(c->log_callbacks->user_edit) | |
1759 | c->log_callbacks->user_edit(c->log_v, vec[0], vec[1]); | |
1760 | } | |
1761 | ||
ad492e00 RK |
1762 | static void logentry_rights_changed(disorder_eclient *c, |
1763 | int attribute((unused)) nvec, char **vec) { | |
1764 | if(c->log_callbacks->rights_changed) { | |
1765 | rights_type r; | |
fa7d5980 | 1766 | if(!parse_rights(vec[0], &r, 0/*report*/)) |
ad492e00 RK |
1767 | c->log_callbacks->rights_changed(c->log_v, r); |
1768 | } | |
1769 | } | |
1770 | ||
460b9539 | 1771 | static const struct { |
1772 | unsigned long bit; | |
1773 | const char *enable; | |
1774 | const char *disable; | |
1775 | } statestrings[] = { | |
1776 | { DISORDER_PLAYING_ENABLED, "enable_play", "disable_play" }, | |
1777 | { DISORDER_RANDOM_ENABLED, "enable_random", "disable_random" }, | |
1778 | { DISORDER_TRACK_PAUSED, "pause", "resume" }, | |
e56e1cc0 RK |
1779 | { DISORDER_PLAYING, "playing", "completed" }, |
1780 | { DISORDER_PLAYING, 0, "scratched" }, | |
1781 | { DISORDER_PLAYING, 0, "failed" }, | |
460b9539 | 1782 | }; |
6cd155a8 | 1783 | #define NSTATES (int)(sizeof statestrings / sizeof *statestrings) |
460b9539 | 1784 | |
1785 | static void logentry_state(disorder_eclient *c, | |
1786 | int attribute((unused)) nvec, char **vec) { | |
1787 | int n; | |
1788 | ||
1789 | for(n = 0; n < NSTATES; ++n) | |
e56e1cc0 | 1790 | if(statestrings[n].enable && !strcmp(vec[0], statestrings[n].enable)) { |
460b9539 | 1791 | c->statebits |= statestrings[n].bit; |
1792 | break; | |
e56e1cc0 | 1793 | } else if(statestrings[n].disable && !strcmp(vec[0], statestrings[n].disable)) { |
460b9539 | 1794 | c->statebits &= ~statestrings[n].bit; |
1795 | break; | |
1796 | } | |
bcc46dc3 RK |
1797 | if(c->log_callbacks->state) |
1798 | c->log_callbacks->state(c->log_v, c->statebits | DISORDER_CONNECTED); | |
460b9539 | 1799 | } |
1800 | ||
1801 | static void logentry_volume(disorder_eclient *c, | |
1802 | int attribute((unused)) nvec, char **vec) { | |
1803 | long l, r; | |
1804 | ||
1805 | if(!c->log_callbacks->volume) return; | |
1806 | if(xstrtol(&l, vec[0], 0, 10) | |
1807 | || xstrtol(&r, vec[1], 0, 10) | |
1808 | || l < 0 || l > INT_MAX | |
1809 | || r < 0 || r > INT_MAX) | |
1810 | return; /* bogus */ | |
1811 | c->log_callbacks->volume(c->log_v, (int)l, (int)r); | |
1812 | } | |
1813 | ||
00959300 RK |
1814 | /** @brief Convert @p statebits to a string */ |
1815 | char *disorder_eclient_interpret_state(unsigned long statebits) { | |
1816 | struct dynstr d[1]; | |
1817 | size_t n; | |
1818 | ||
1819 | static const struct { | |
1820 | unsigned long bit; | |
1821 | const char *name; | |
1822 | } bits[] = { | |
1823 | { DISORDER_PLAYING_ENABLED, "playing_enabled" }, | |
1824 | { DISORDER_RANDOM_ENABLED, "random_enabled" }, | |
1825 | { DISORDER_TRACK_PAUSED, "track_paused" }, | |
1826 | { DISORDER_PLAYING, "playing" }, | |
1827 | { DISORDER_CONNECTED, "connected" }, | |
1828 | }; | |
1829 | #define NBITS (sizeof bits / sizeof *bits) | |
1830 | ||
1831 | dynstr_init(d); | |
6d1302f0 RK |
1832 | if(!statebits) |
1833 | dynstr_append(d, '0'); | |
00959300 RK |
1834 | for(n = 0; n < NBITS; ++n) |
1835 | if(statebits & bits[n].bit) { | |
1836 | if(d->nvec) | |
1837 | dynstr_append(d, '|'); | |
1838 | dynstr_append_string(d, bits[n].name); | |
1839 | statebits ^= bits[n].bit; | |
1840 | } | |
1841 | if(statebits) { | |
1842 | char s[20]; | |
1843 | ||
1844 | if(d->nvec) | |
1845 | dynstr_append(d, '|'); | |
1846 | sprintf(s, "%#lx", statebits); | |
1847 | dynstr_append_string(d, s); | |
1848 | } | |
1849 | dynstr_terminate(d); | |
1850 | return d->vec; | |
1851 | } | |
1852 | ||
460b9539 | 1853 | /* |
1854 | Local Variables: | |
1855 | c-basic-offset:2 | |
1856 | comment-column:40 | |
1857 | fill-column:79 | |
1858 | indent-tabs-mode:nil | |
1859 | End: | |
1860 | */ |