server: Convert com_ls() to lopsub.
[paraslash.git] / aft.c
1 /*
2 * Copyright (C) 2007 Andre Noll <maan@tuebingen.mpg.de>
3 *
4 * Licensed under the GPL v2. For licencing details see COPYING.
5 */
6
7 /** \file aft.c Audio file table functions. */
8
9 #include <regex.h>
10 #include <sys/mman.h>
11 #include <fnmatch.h>
12 #include <sys/shm.h>
13 #include <osl.h>
14 #include <lopsub.h>
15
16 #include "server_cmd.lsg.h"
17 #include "para.h"
18 #include "error.h"
19 #include "crypt.h"
20 #include "string.h"
21 #include "afh.h"
22 #include "afs.h"
23 #include "fd.h"
24 #include "ipc.h"
25 #include "portable_io.h"
26 #include "sideband.h"
27 #include "command.h"
28
29 static struct osl_table *audio_file_table;
30 static char *status_items;
31 static char *parser_friendly_status_items;
32
33 /** The different sorting methods of the ls command. */
34 enum ls_sorting_method {
35 /** -sp (default) */
36 LS_SORT_BY_PATH,
37 /** -ss */
38 LS_SORT_BY_SCORE,
39 /** -sl */
40 LS_SORT_BY_LAST_PLAYED,
41 /** -sn */
42 LS_SORT_BY_NUM_PLAYED,
43 /** -sf */
44 LS_SORT_BY_FREQUENCY,
45 /** -sc */
46 LS_SORT_BY_CHANNELS,
47 /** -si */
48 LS_SORT_BY_IMAGE_ID,
49 /** -sy */
50 LS_SORT_BY_LYRICS_ID,
51 /** -sb */
52 LS_SORT_BY_BITRATE,
53 /** -sd */
54 LS_SORT_BY_DURATION,
55 /** -sa */
56 LS_SORT_BY_AUDIO_FORMAT,
57 /** -sh */
58 LS_SORT_BY_HASH,
59 };
60
61 /** The different listing modes of the ls command. */
62 enum ls_listing_mode {
63 /** Default listing mode. */
64 LS_MODE_SHORT,
65 /** -l or -ll */
66 LS_MODE_LONG,
67 /** -lv */
68 LS_MODE_VERBOSE,
69 /** -lm */
70 LS_MODE_MBOX,
71 /** -lc */
72 LS_MODE_CHUNKS,
73 /** -lp */
74 LS_MODE_PARSER,
75 };
76
77 /* Data about one audio file. Needed for ls and stat output. */
78 struct ls_data {
79 /* Usual audio format handler information. */
80 struct afh_info afhi;
81 /* Audio file selector information. */
82 struct afs_info afsi;
83 /* The full path of the audio file. */
84 char *path;
85 /* The score value (if -a was given). */
86 long score;
87 /* The hash value of the audio file data. */
88 unsigned char *hash;
89 };
90
91 /**
92 * The size of the individual output fields of the ls command.
93 *
94 * These depend on the content being listed. For example, if each listed file
95 * is shorter than an hour, the duration format is set to mm:ss. Otherwise it
96 * is set to hh:mm:ss.
97 */
98 struct ls_widths {
99 /** size of the score field. */
100 unsigned short score_width;
101 /** size of the image id field. */
102 unsigned short image_id_width;
103 /** size of the lyrics id field. */
104 unsigned short lyrics_id_width;
105 /** size of the bitrate field. */
106 unsigned short bitrate_width;
107 /** size of the frequency field. */
108 unsigned short frequency_width;
109 /** size of the duration field. */
110 unsigned short duration_width;
111 /** size of the num played field. */
112 unsigned short num_played_width;
113 /** size of the amp field. */
114 unsigned short amp_width;
115 /** size of the audio format field. */
116 unsigned short audio_format_width;
117 };
118
119 /** Data passed from the ls command handler to its callback function. */
120 struct ls_options {
121 struct lls_parse_result *lpr;
122 /* Derived from lpr */
123 enum ls_sorting_method sorting;
124 /* Derived from lpr */
125 enum ls_listing_mode mode;
126 /** Used for long listing mode to align the output fields. */
127 struct ls_widths widths;
128 /** Size of the \a data array. */
129 uint32_t array_size;
130 /** Number of used entries in the data array. */
131 uint32_t num_matching_paths;
132 /** Array of matching entries. */
133 struct ls_data *data;
134 /** Used to sort the array. */
135 struct ls_data **data_ptr;
136 };
137
138 /**
139 * Describes the layout of the mmapped-afs info struct.
140 *
141 * \sa struct afs_info.
142 */
143 enum afsi_offsets {
144 /** Where .last_played is stored. */
145 AFSI_LAST_PLAYED_OFFSET = 0,
146 /** Storage position of the attributes bitmap. */
147 AFSI_ATTRIBUTES_OFFSET = 8,
148 /** Storage position of the .num_played field. */
149 AFSI_NUM_PLAYED_OFFSET = 16,
150 /** Storage position of the .image_id field. */
151 AFSI_IMAGE_ID_OFFSET = 20,
152 /** Storage position of the .lyrics_id field. */
153 AFSI_LYRICS_ID_OFFSET = 24,
154 /** Storage position of the .audio_format_id field. */
155 AFSI_AUDIO_FORMAT_ID_OFFSET = 28,
156 /** Storage position of the amplification field. */
157 AFSI_AMP_OFFSET = 29,
158 /** 2 bytes reserved space for future usage. */
159 AFSI_AUDIO_FORMAT_UNUSED_OFFSET = 30,
160 /** On-disk storage space needed. */
161 AFSI_SIZE = 32
162 };
163
164 /*
165 * Convert a struct afs_info to an osl object.
166 *
167 * \param afsi Pointer to the audio file info to be converted.
168 * \param obj Result pointer.
169 *
170 * \sa load_afsi().
171 */
172 static void save_afsi(struct afs_info *afsi, struct osl_object *obj)
173 {
174 char *buf = obj->data;
175
176 write_u64(buf + AFSI_LAST_PLAYED_OFFSET, afsi->last_played);
177 write_u64(buf + AFSI_ATTRIBUTES_OFFSET, afsi->attributes);
178 write_u32(buf + AFSI_NUM_PLAYED_OFFSET, afsi->num_played);
179 write_u32(buf + AFSI_IMAGE_ID_OFFSET, afsi->image_id);
180 write_u32(buf + AFSI_LYRICS_ID_OFFSET, afsi->lyrics_id);
181 write_u8(buf + AFSI_AUDIO_FORMAT_ID_OFFSET,
182 afsi->audio_format_id);
183 write_u8(buf + AFSI_AMP_OFFSET, afsi->amp);
184 memset(buf + AFSI_AUDIO_FORMAT_UNUSED_OFFSET, 0, 2);
185 }
186
187 /*
188 * Get the audio file selector info struct stored in an osl object.
189 *
190 * \param afsi Points to the audio_file info structure to be filled in.
191 * \param obj The osl object holding the data.
192 *
193 * \return Standard.
194 *
195 * \sa save_afsi().
196 */
197 static int load_afsi(struct afs_info *afsi, struct osl_object *obj)
198 {
199 char *buf = obj->data;
200 if (obj->size < AFSI_SIZE)
201 return -E_BAD_AFSI;
202 afsi->last_played = read_u64(buf + AFSI_LAST_PLAYED_OFFSET);
203 afsi->attributes = read_u64(buf + AFSI_ATTRIBUTES_OFFSET);
204 afsi->num_played = read_u32(buf + AFSI_NUM_PLAYED_OFFSET);
205 afsi->image_id = read_u32(buf + AFSI_IMAGE_ID_OFFSET);
206 afsi->lyrics_id = read_u32(buf + AFSI_LYRICS_ID_OFFSET);
207 afsi->audio_format_id = read_u8(buf +
208 AFSI_AUDIO_FORMAT_ID_OFFSET);
209 afsi->amp = read_u8(buf + AFSI_AMP_OFFSET);
210 return 1;
211 }
212
213 /** The columns of the audio file table. */
214 enum audio_file_table_columns {
215 /** The hash on the content of the audio file. */
216 AFTCOL_HASH,
217 /** The full path in the filesystem. */
218 AFTCOL_PATH,
219 /** The audio file selector info. */
220 AFTCOL_AFSI,
221 /** The audio format handler info. */
222 AFTCOL_AFHI,
223 /** The chunk table info and the chunk table of the audio file. */
224 AFTCOL_CHUNKS,
225 /** The number of columns of this table. */
226 NUM_AFT_COLUMNS
227 };
228
229 /* compare function for the hash column */
230 static int aft_hash_compare(const struct osl_object *obj1,
231 const struct osl_object *obj2)
232 {
233 return hash_compare((unsigned char *)obj1->data,
234 (unsigned char *)obj2->data);
235 }
236
237 static struct osl_column_description aft_cols[] = {
238 [AFTCOL_HASH] = {
239 .storage_type = OSL_MAPPED_STORAGE,
240 .storage_flags = OSL_RBTREE | OSL_FIXED_SIZE | OSL_UNIQUE,
241 .name = "hash",
242 .compare_function = aft_hash_compare,
243 .data_size = HASH_SIZE
244 },
245 [AFTCOL_PATH] = {
246 .storage_type = OSL_MAPPED_STORAGE,
247 .storage_flags = OSL_RBTREE | OSL_UNIQUE,
248 .name = "path",
249 .compare_function = string_compare,
250 },
251 [AFTCOL_AFSI] = {
252 .storage_type = OSL_MAPPED_STORAGE,
253 .storage_flags = OSL_FIXED_SIZE,
254 .name = "afs_info",
255 .data_size = AFSI_SIZE
256 },
257 [AFTCOL_AFHI] = {
258 .storage_type = OSL_MAPPED_STORAGE,
259 .name = "afh_info",
260 },
261 [AFTCOL_CHUNKS] = {
262 .storage_type = OSL_DISK_STORAGE,
263 .name = "chunks",
264 }
265 };
266
267 static struct osl_table_description audio_file_table_desc = {
268 .name = "audio_files",
269 .num_columns = NUM_AFT_COLUMNS,
270 .flags = OSL_LARGE_TABLE,
271 .column_descriptions = aft_cols
272 };
273
274 /*
275 * Produce a canonicalized absolute pathname.
276 *
277 * Returns one if the resolved path a directory, zero if it is a regular file,
278 * negative on errors.
279 */
280 static int verify_path(const char *orig_path, char **resolved_path)
281 {
282 int ret;
283 char *path = NULL;
284 struct stat statbuf;
285
286 if (*orig_path != '/') /* we only accept absolute paths */
287 goto fail;
288 path = realpath(orig_path, NULL);
289 if (!path)
290 goto fail;
291 if (stat(path, &statbuf) < 0)
292 goto fail;
293 if (S_ISREG(statbuf.st_mode))
294 ret = 0;
295 else if (S_ISDIR(statbuf.st_mode))
296 ret = 1;
297 else
298 goto fail;
299 *resolved_path = path;
300 return ret;
301 fail:
302 *resolved_path = NULL;
303 free(path);
304 return -E_BAD_PATH;
305 }
306
307 /** The on-disk layout of a afhi struct. */
308 enum afhi_offsets {
309 /** Where the number of seconds is stored. */
310 AFHI_SECONDS_TOTAL_OFFSET = 0,
311 /** Position of the bitrate. */
312 AFHI_BITRATE_OFFSET = 4,
313 /** Position of the frequency. */
314 AFHI_FREQUENCY_OFFSET = 8,
315 /** Was: Location of the audio file header. */
316 AFHI_UNUSED1_OFFSET = 12,
317 /* Length of the audio file header. Zero means: No header. */
318 AFHI_HEADER_LEN_OFFSET = 16,
319 /** The total number of chunks (4 bytes). */
320 CHUNKS_TOTAL_OFFSET = 20,
321 /** The length of the audio file header (4 bytes). */
322 HEADER_LEN_OFFSET = 24,
323 /** Was: The start of the audio file header (4 bytes). */
324 AFHI_UNUSED2_OFFSET = 28,
325 /** The seconds part of the chunk time (4 bytes). */
326 CHUNK_TV_TV_SEC_OFFSET = 32,
327 /** The microseconds part of the chunk time (4 bytes). */
328 CHUNK_TV_TV_USEC_OFFSET = 36,
329 /** Number of channels is stored here. (1 byte) */
330 AFHI_CHANNELS_OFFSET = 40,
331 /** The tag info position. */
332 AFHI_INFO_STRING_OFFSET = 41,
333 /** Minimal on-disk size of a valid afhi struct. */
334 MIN_AFHI_SIZE = 47, /* at least 6 null bytes for techinfo/tags */
335 };
336
337 static unsigned sizeof_afhi_buf(const struct afh_info *afhi)
338 {
339 if (!afhi)
340 return 0;
341 return MIN_AFHI_SIZE
342 + strlen(afhi->techinfo)
343 + strlen(afhi->tags.artist)
344 + strlen(afhi->tags.title)
345 + strlen(afhi->tags.year)
346 + strlen(afhi->tags.album)
347 + strlen(afhi->tags.comment);
348 }
349
350 static void save_afhi(struct afh_info *afhi, char *buf)
351 {
352 char *p;
353
354 if (!afhi)
355 return;
356 write_u32(buf + AFHI_SECONDS_TOTAL_OFFSET, afhi->seconds_total);
357 write_u32(buf + AFHI_BITRATE_OFFSET, afhi->bitrate);
358 write_u32(buf + AFHI_FREQUENCY_OFFSET, afhi->frequency);
359 write_u32(buf + AFHI_UNUSED1_OFFSET, 0);
360 write_u32(buf + AFHI_HEADER_LEN_OFFSET, afhi->header_len);
361 write_u8(buf + AFHI_CHANNELS_OFFSET, afhi->channels);
362 write_u32(buf + CHUNKS_TOTAL_OFFSET, afhi->chunks_total);
363 write_u32(buf + HEADER_LEN_OFFSET, afhi->header_len);
364 write_u32(buf + AFHI_UNUSED2_OFFSET, 0);
365 write_u32(buf + CHUNK_TV_TV_SEC_OFFSET, afhi->chunk_tv.tv_sec);
366 write_u32(buf + CHUNK_TV_TV_USEC_OFFSET, afhi->chunk_tv.tv_usec);
367 p = buf + AFHI_INFO_STRING_OFFSET;
368 /* The sprintf's below are OK as our caller made sure that buf is large enough */
369 p += sprintf(p, "%s", afhi->techinfo) + 1;
370 p += sprintf(p, "%s", afhi->tags.artist) + 1;
371 p += sprintf(p, "%s", afhi->tags.title) + 1;
372 p += sprintf(p, "%s", afhi->tags.year) + 1;
373 p += sprintf(p, "%s", afhi->tags.album) + 1;
374 sprintf(p, "%s", afhi->tags.comment);
375 }
376
377 static void load_afhi(const char *buf, struct afh_info *afhi)
378 {
379 afhi->seconds_total = read_u32(buf + AFHI_SECONDS_TOTAL_OFFSET);
380 afhi->bitrate = read_u32(buf + AFHI_BITRATE_OFFSET);
381 afhi->frequency = read_u32(buf + AFHI_FREQUENCY_OFFSET);
382 afhi->header_len = read_u32(buf + AFHI_HEADER_LEN_OFFSET);
383 afhi->channels = read_u8(buf + AFHI_CHANNELS_OFFSET);
384 afhi->chunks_total = read_u32(buf + CHUNKS_TOTAL_OFFSET);
385 afhi->header_len = read_u32(buf + HEADER_LEN_OFFSET);
386 afhi->chunk_tv.tv_sec = read_u32(buf + CHUNK_TV_TV_SEC_OFFSET);
387 afhi->chunk_tv.tv_usec = read_u32(buf + CHUNK_TV_TV_USEC_OFFSET);
388 afhi->techinfo = (char *)buf + AFHI_INFO_STRING_OFFSET;
389 afhi->tags.artist = afhi->techinfo + strlen(afhi->techinfo) + 1;
390 afhi->tags.title = afhi->tags.artist + strlen(afhi->tags.artist) + 1;
391 afhi->tags.year = afhi->tags.title + strlen(afhi->tags.title) + 1;
392 afhi->tags.album = afhi->tags.year + strlen(afhi->tags.year) + 1;
393 afhi->tags.comment = afhi->tags.album + strlen(afhi->tags.album) + 1;
394 }
395
396 static unsigned sizeof_chunk_table(struct afh_info *afhi)
397 {
398 if (!afhi)
399 return 0;
400 return 4 * (afhi->chunks_total + 1);
401 }
402
403 static uint32_t save_chunk_table(struct afh_info *afhi, char *buf)
404 {
405 int i;
406 uint32_t max = 0, old = 0;
407
408 for (i = 0; i <= afhi->chunks_total; i++) {
409 uint32_t val = afhi->chunk_table[i];
410 write_u32(buf + 4 * i, val);
411 /*
412 * If the first chunk is the header, do not consider it for the
413 * calculation of the largest chunk size.
414 */
415 if (i == 0 || (i == 1 && afhi->header_len > 0)) {
416 old = val;
417 continue;
418 }
419 max = PARA_MAX(max, val - old);
420 old = val;
421 }
422 return max;
423 }
424
425 static void load_chunk_table(struct afh_info *afhi, char *buf)
426 {
427 int i;
428
429 afhi->chunk_table = para_malloc(sizeof_chunk_table(afhi));
430 for (i = 0; i <= afhi->chunks_total; i++)
431 afhi->chunk_table[i] = read_u32(buf + 4 * i);
432 }
433
434 /**
435 * Get the row of the audio file table corresponding to the given path.
436 *
437 * \param path The full path of the audio file.
438 * \param row Result pointer.
439 *
440 * \return Standard.
441 */
442 int aft_get_row_of_path(const char *path, struct osl_row **row)
443 {
444 struct osl_object obj = {.data = (char *)path, .size = strlen(path) + 1};
445
446 return osl(osl_get_row(audio_file_table, AFTCOL_PATH, &obj, row));
447 }
448
449 /**
450 * Get the row of the audio file table corresponding to the given hash value.
451 *
452 * \param hash The hash value of the desired audio file.
453 * \param row Result pointer.
454 *
455 * \return Standard.
456 */
457 static int aft_get_row_of_hash(unsigned char *hash, struct osl_row **row)
458 {
459 const struct osl_object obj = {.data = hash, .size = HASH_SIZE};
460 return osl(osl_get_row(audio_file_table, AFTCOL_HASH, &obj, row));
461 }
462
463 /*
464 * Get the audio file selector info object of a row.
465 *
466 * \param row Pointer to a row in the audio file table.
467 * \param obj Result pointer.
468 *
469 * \return Standard.
470 */
471 static int get_afsi_object_of_row(const struct osl_row *row,
472 struct osl_object *obj)
473 {
474 return osl(osl_get_object(audio_file_table, row, AFTCOL_AFSI, obj));
475 }
476
477 /**
478 * Get the osl object holding the audio file selector info, given a path.
479 *
480 *
481 * \param path The full path of the audio file.
482 * \param obj Result pointer.
483 *
484 * \return Positive on success, negative on errors.
485 */
486 static int get_afsi_object_of_path(const char *path, struct osl_object *obj)
487 {
488 struct osl_row *row;
489 int ret = aft_get_row_of_path(path, &row);
490 if (ret < 0)
491 return ret;
492 return get_afsi_object_of_row(row, obj);
493 }
494
495 /**
496 * Get the audio file selector info, given a row of the audio file table.
497 *
498 * \param row Pointer to a row in the audio file table.
499 * \param afsi Result pointer.
500 *
501 * \return Positive on success, negative on errors.
502 */
503 int get_afsi_of_row(const struct osl_row *row, struct afs_info *afsi)
504 {
505 struct osl_object obj;
506 int ret = get_afsi_object_of_row(row, &obj);
507 if (ret < 0)
508 return ret;
509 return load_afsi(afsi, &obj);
510 }
511
512 /*
513 * Get the audio file selector info, given the path of an audio table.
514 *
515 * \param path The full path of the audio file.
516 * \param afsi Result pointer.
517 *
518 * \return Standard.
519 */
520 static int get_afsi_of_path(const char *path, struct afs_info *afsi)
521 {
522 struct osl_object obj;
523 int ret = get_afsi_object_of_path(path, &obj);
524 if (ret < 0)
525 return ret;
526 return load_afsi(afsi, &obj);
527 }
528
529 /**
530 * Get the path of an audio file, given a row of the audio file table.
531 *
532 * \param row Pointer to a row in the audio file table.
533 * \param path Result pointer.
534 *
535 * The result is a pointer to mmapped data. The caller must not attempt
536 * to free it.
537 *
538 * \return Standard.
539 */
540 int get_audio_file_path_of_row(const struct osl_row *row, char **path)
541 {
542 struct osl_object path_obj;
543 int ret = osl(osl_get_object(audio_file_table, row, AFTCOL_PATH,
544 &path_obj));
545 if (ret < 0)
546 return ret;
547 *path = path_obj.data;
548 return 1;
549 }
550
551 /**
552 * Get the object containing the hash value of an audio file, given a row.
553 *
554 * \param row Pointer to a row of the audio file table.
555 * \param obj Result pointer.
556 *
557 * \return The return value of the underlying call to osl_get_object().
558 *
559 * \sa get_hash_of_row().
560 */
561 static int get_hash_object_of_aft_row(const struct osl_row *row,
562 struct osl_object *obj)
563 {
564 return osl(osl_get_object(audio_file_table, row, AFTCOL_HASH, obj));
565 }
566
567 /**
568 * Get the hash value of an audio file, given a row of the audio file table.
569 *
570 * \param row Pointer to a row of the audio file table.
571 * \param hash Result pointer.
572 *
573 * \a hash points to mapped data and must not be freed by the caller.
574 *
575 * \return The return value of the underlying call to
576 * get_hash_object_of_aft_row().
577 */
578 static int get_hash_of_row(const struct osl_row *row, unsigned char **hash)
579 {
580 struct osl_object obj;
581 int ret = get_hash_object_of_aft_row(row, &obj);
582
583 if (ret < 0)
584 return ret;
585 *hash = obj.data;
586 return 1;
587 }
588
589 /**
590 * Get the audio format handler info, given a row of the audio file table.
591 *
592 * \param row Pointer to a row of the audio file table.
593 * \param afhi Result pointer.
594 *
595 * \return The return value of the underlying call to osl_get_object().
596 *
597 * \sa get_chunk_table_of_row().
598 */
599 int get_afhi_of_row(const struct osl_row *row, struct afh_info *afhi)
600 {
601 struct osl_object obj;
602 int ret = osl(osl_get_object(audio_file_table, row, AFTCOL_AFHI,
603 &obj));
604 if (ret < 0)
605 return ret;
606 load_afhi(obj.data, afhi);
607 return 1;
608 }
609
610 /* returns shmid on success */
611 static int save_afd(struct audio_file_data *afd)
612 {
613 size_t size = sizeof(*afd) + sizeof_chunk_table(&afd->afhi);
614 int shmid, ret = shm_new(size);
615 void *shm_afd;
616 char *buf;
617
618 if (ret < 0)
619 return ret;
620 shmid = ret;
621 ret = shm_attach(shmid, ATTACH_RW, &shm_afd);
622 if (ret < 0)
623 goto err;
624 buf = shm_afd;
625 buf += sizeof(*afd);
626 afd->max_chunk_size = save_chunk_table(&afd->afhi, buf);
627 *(struct audio_file_data *)shm_afd = *afd;
628 shm_detach(shm_afd);
629 return shmid;
630 err:
631 shm_destroy(shmid);
632 return ret;
633 }
634
635 /**
636 * Extract a afd stored in a shared memory area.
637 *
638 * Attach the shared memory area given by \a shmid, load the audio file data
639 * stored therein and detach the area afterwards. Called by vss, after
640 * receiving a positive response to the request for the next audio file.
641 +
642 * \param shmid The identifier of the shared memory area containing the afd.
643 * \param afd Result pointer.
644 *
645 * \return Standard.
646 */
647 int load_afd(int shmid, struct audio_file_data *afd)
648 {
649 void *shm_afd;
650 int ret;
651
652 ret = shm_attach(shmid, ATTACH_RO, &shm_afd);
653 if (ret < 0)
654 return ret;
655 *afd = *(struct audio_file_data *)shm_afd;
656 load_chunk_table(&afd->afhi, shm_afd + sizeof(*afd));
657 shm_detach(shm_afd);
658 return 1;
659 }
660
661 static int get_local_time(uint64_t *seconds, char *buf, size_t size,
662 time_t current_time, enum ls_listing_mode lm)
663 {
664 struct tm *tm;
665 /*
666 * Omit year but show time if the given value is closer to the current
667 * time than this many seconds.
668 */
669 const time_t m = 6 * 30 * 24 * 3600; /* six months */
670
671 tm = localtime((time_t *)seconds);
672 if (!tm)
673 return -E_LOCALTIME;
674 if (lm == LS_MODE_MBOX) {
675 if (!strftime(buf, size, "%c", tm))
676 return -E_STRFTIME;
677 return 1;
678 }
679 if (*seconds > current_time - m && *seconds < current_time + m) {
680 if (!strftime(buf, size, "%b %e %k:%M", tm))
681 return -E_STRFTIME;
682 return 1;
683 }
684 /*
685 * If the given time is more than six month away from the current time,
686 * we print only the year. The additional space character in the format
687 * string below makes the formated date align nicely with dates that
688 * contain the time (those written by the above strftime() statement).
689 */
690 if (!strftime(buf, size, "%b %e %Y", tm))
691 return -E_STRFTIME;
692 return 1;
693 }
694
695 /** Compute the number of (decimal) digits of a number. */
696 #define GET_NUM_DIGITS(x, num) { \
697 typeof((x)) _tmp = PARA_ABS(x); \
698 *num = 1; \
699 if ((_tmp)) \
700 while ((_tmp) > 9) { \
701 (_tmp) /= 10; \
702 (*num)++; \
703 } \
704 }
705
706 __a_const static short unsigned get_duration_width(int seconds)
707 {
708 short unsigned width;
709 unsigned hours = seconds / 3600, mins = (seconds % 3600) / 60;
710
711 if (!hours) /* less than one hour => m:ss or mm:ss => 4 or 5 digits */
712 return 4 + (mins > 9);
713 /* more than one hour => h:mm:ss, hh:mm:ss, hhh:mm:ss, ... */
714 GET_NUM_DIGITS(hours, &width);
715 return width + 6;
716 }
717
718 static void get_duration_buf(int seconds, char *buf, struct ls_options *opts)
719 {
720 unsigned hours = seconds / 3600, mins = (seconds % 3600) / 60;
721 short unsigned max_width;
722
723 if (!hours) { /* m:ss or mm:ss */
724 max_width = opts->mode == LS_MODE_LONG?
725 opts->widths.duration_width : 4;
726 sprintf(buf, "%*u:%02d", max_width - 3, mins, seconds % 60);
727 } else { /* more than one hour => h:mm:ss, hh:mm:ss, hhh:mm:ss, ... */
728 max_width = opts->mode == LS_MODE_LONG?
729 opts->widths.duration_width : 7;
730 sprintf(buf, "%*u:%02u:%02d", max_width - 6, hours, mins,
731 seconds % 60);
732 }
733 }
734
735 static int write_attribute_items(struct para_buffer *b,
736 const char *att_bitmap, struct afs_info *afsi)
737 {
738 char *att_text;
739 int ret;
740
741 WRITE_STATUS_ITEM(b, SI_ATTRIBUTES_BITMAP, "%s\n", att_bitmap);
742 ret = get_attribute_text(&afsi->attributes, " ", &att_text);
743 if (ret < 0)
744 return ret;
745 WRITE_STATUS_ITEM(b, SI_ATTRIBUTES_TXT, "%s\n", att_text);
746 free(att_text);
747 return ret;
748 }
749
750 static void write_lyrics_items(struct para_buffer *b, struct afs_info *afsi)
751 {
752 char *lyrics_name;
753
754 WRITE_STATUS_ITEM(b, SI_LYRICS_ID, "%u\n", afsi->lyrics_id);
755 lyr_get_name_by_id(afsi->lyrics_id, &lyrics_name);
756 WRITE_STATUS_ITEM(b, SI_LYRICS_NAME, "%s\n", lyrics_name?
757 lyrics_name : "(none)");
758 }
759
760 static void write_image_items(struct para_buffer *b, struct afs_info *afsi)
761 {
762 char *image_name;
763
764 WRITE_STATUS_ITEM(b, SI_IMAGE_ID, "%u\n", afsi->image_id);
765 img_get_name_by_id(afsi->image_id, &image_name);
766 WRITE_STATUS_ITEM(b, SI_IMAGE_NAME, "%s\n", image_name?
767 image_name : "(none)");
768 }
769
770 static void write_filename_items(struct para_buffer *b, const char *path,
771 bool basename)
772 {
773 char *val;
774
775 if (basename) {
776 WRITE_STATUS_ITEM(b, SI_BASENAME, "%s\n", path);
777 return;
778 }
779 WRITE_STATUS_ITEM(b, SI_PATH, "%s\n", path);
780 val = para_basename(path);
781 WRITE_STATUS_ITEM(b, SI_BASENAME, "%s\n", val? val : "");
782 val = para_dirname(path);
783 WRITE_STATUS_ITEM(b, SI_DIRECTORY, "%s\n", val? val : "");
784 free(val);
785 }
786
787 static int print_chunk_table(struct ls_data *d, struct para_buffer *b)
788 {
789 struct osl_object chunk_table_obj;
790 struct osl_row *aft_row;
791 int ret, i;
792 char *buf;
793
794 ret = aft_get_row_of_hash(d->hash, &aft_row);
795 if (ret < 0)
796 return ret;
797 ret = osl(osl_open_disk_object(audio_file_table, aft_row,
798 AFTCOL_CHUNKS, &chunk_table_obj));
799 if (ret < 0)
800 return ret;
801 para_printf(b, "%s\n"
802 "chunk_time: %lu:%lu\nchunk_offsets: ",
803 d->path,
804 (long unsigned) d->afhi.chunk_tv.tv_sec,
805 (long unsigned) d->afhi.chunk_tv.tv_usec
806 );
807 buf = chunk_table_obj.data;
808 for (i = 0; i <= d->afhi.chunks_total; i++)
809 para_printf(b, "%u ", (unsigned) read_u32(buf + 4 * i));
810 para_printf(b, "\n");
811 ret = 1;
812 osl_close_disk_object(&chunk_table_obj);
813 return ret;
814 }
815
816 static int print_list_item(struct ls_data *d, struct ls_options *opts,
817 struct para_buffer *b, time_t current_time)
818 {
819 const struct lls_opt_result *r_a = SERVER_CMD_OPT_RESULT(LS, ADMISSIBLE, opts->lpr);
820 const struct lls_opt_result *r_b = SERVER_CMD_OPT_RESULT(LS, BASENAME, opts->lpr);
821 const struct lls_opt_result *r_d = SERVER_CMD_OPT_RESULT(LS, UNIX_DATE, opts->lpr);
822 int ret;
823 char att_buf[65];
824 char last_played_time[30];
825 char duration_buf[30]; /* nobody has an audio file long enough to overflow this */
826 struct afs_info *afsi = &d->afsi;
827 struct afh_info *afhi = &d->afhi;
828 char asc_hash[2 * HASH_SIZE + 1];
829
830 if (opts->mode == LS_MODE_SHORT) {
831 para_printf(b, "%s\n", d->path);
832 ret = 1;
833 goto out;
834 }
835 if (opts->mode == LS_MODE_CHUNKS) {
836 ret = print_chunk_table(d, b);
837 goto out;
838 }
839 get_attribute_bitmap(&afsi->attributes, att_buf);
840 if (lls_opt_given(r_d))
841 sprintf(last_played_time, "%llu",
842 (long long unsigned)afsi->last_played);
843 else {
844 ret = get_local_time(&afsi->last_played, last_played_time,
845 sizeof(last_played_time), current_time, opts->mode);
846 if (ret < 0)
847 goto out;
848 }
849 get_duration_buf(afhi->seconds_total, duration_buf, opts);
850 if (opts->mode == LS_MODE_LONG) {
851 struct ls_widths *w = &opts->widths;
852 if (lls_opt_given(r_a))
853 para_printf(b, "%*li ", opts->widths.score_width,
854 d->score);
855 para_printf(b,
856 "%s " /* attributes */
857 "%*u " /* amp */
858 "%*u " /* image_id */
859 "%*u " /* lyrics_id */
860 "%*u " /* bitrate */
861 "%*s " /* audio format */
862 "%*u " /* frequency */
863 "%u " /* channels */
864 "%s " /* duration */
865 "%*u " /* num_played */
866 "%s " /* last_played */
867 "%s\n", /* path */
868 att_buf,
869 w->amp_width, afsi->amp,
870 w->image_id_width, afsi->image_id,
871 w->lyrics_id_width, afsi->lyrics_id,
872 w->bitrate_width, afhi->bitrate,
873 w->audio_format_width,
874 audio_format_name(afsi->audio_format_id),
875 w->frequency_width, afhi->frequency,
876 afhi->channels,
877 duration_buf,
878 w->num_played_width, afsi->num_played,
879 last_played_time,
880 d->path
881 );
882 ret = 1;
883 goto out;
884 }
885 if (opts->mode == LS_MODE_MBOX) {
886 const char *bn = para_basename(d->path);
887 para_printf(b,
888 "From foo@localhost %s\n"
889 "Received: from\nTo: bar\nFrom: a\n"
890 "Subject: %s\n\n",
891 last_played_time,
892 bn? bn : "?");
893 }
894 write_filename_items(b, d->path, lls_opt_given(r_b) > 0);
895 if (lls_opt_given(r_a))
896 WRITE_STATUS_ITEM(b, SI_SCORE, "%li\n", d->score);
897 ret = write_attribute_items(b, att_buf, afsi);
898 if (ret < 0)
899 goto out;
900 write_image_items(b, afsi);
901 write_lyrics_items(b, afsi);
902 hash_to_asc(d->hash, asc_hash);
903 WRITE_STATUS_ITEM(b, SI_HASH, "%s\n", asc_hash);
904 WRITE_STATUS_ITEM(b, SI_BITRATE, "%dkbit/s\n", afhi->bitrate);
905 WRITE_STATUS_ITEM(b, SI_FORMAT, "%s\n",
906 audio_format_name(afsi->audio_format_id));
907 WRITE_STATUS_ITEM(b, SI_FREQUENCY, "%dHz\n", afhi->frequency);
908 WRITE_STATUS_ITEM(b, SI_CHANNELS, "%d\n", afhi->channels);
909 WRITE_STATUS_ITEM(b, SI_DURATION, "%s\n", duration_buf);
910 WRITE_STATUS_ITEM(b, SI_SECONDS_TOTAL, "%" PRIu32 "\n",
911 afhi->seconds_total);
912 WRITE_STATUS_ITEM(b, SI_LAST_PLAYED, "%s\n", last_played_time);
913 WRITE_STATUS_ITEM(b, SI_NUM_PLAYED, "%u\n", afsi->num_played);
914 WRITE_STATUS_ITEM(b, SI_AMPLIFICATION, "%u\n", afsi->amp);
915 WRITE_STATUS_ITEM(b, SI_CHUNK_TIME, "%lu\n", tv2ms(&afhi->chunk_tv));
916 WRITE_STATUS_ITEM(b, SI_NUM_CHUNKS, "%" PRIu32 "\n",
917 afhi->chunks_total);
918 WRITE_STATUS_ITEM(b, SI_TECHINFO, "%s\n", afhi->techinfo);
919 WRITE_STATUS_ITEM(b, SI_ARTIST, "%s\n", afhi->tags.artist);
920 WRITE_STATUS_ITEM(b, SI_TITLE, "%s\n", afhi->tags.title);
921 WRITE_STATUS_ITEM(b, SI_YEAR, "%s\n", afhi->tags.year);
922 WRITE_STATUS_ITEM(b, SI_ALBUM, "%s\n", afhi->tags.album);
923 WRITE_STATUS_ITEM(b, SI_COMMENT, "%s\n", afhi->tags.comment);
924 if (opts->mode == LS_MODE_MBOX) {
925 struct osl_object lyrics_def;
926 lyr_get_def_by_id(afsi->lyrics_id, &lyrics_def);
927 if (lyrics_def.data) {
928 para_printf(b, "Lyrics:\n~~~~~~~\n%s",
929 (char *)lyrics_def.data);
930 osl_close_disk_object(&lyrics_def);
931 }
932 }
933 out:
934 return ret;
935 }
936
937 static struct ls_data status_item_ls_data;
938 static struct osl_row *current_aft_row;
939
940 static void make_inode_status_items(struct para_buffer *pb)
941 {
942 struct stat statbuf = {.st_size = 0};
943 char *path, mtime_str[30] = "\0";
944 struct tm mtime_tm;
945 int ret;
946
947 ret = get_audio_file_path_of_row(current_aft_row, &path);
948 if (ret < 0)
949 goto out;
950 ret = stat(path, &statbuf);
951 if (ret < 0)
952 goto out;
953 localtime_r(&statbuf.st_mtime, &mtime_tm);
954 ret = strftime(mtime_str, 29, "%b %d %Y", &mtime_tm);
955 assert(ret > 0); /* number of bytes placed in mtime_str */
956 out:
957 WRITE_STATUS_ITEM(pb, SI_MTIME, "%s\n", mtime_str);
958 WRITE_STATUS_ITEM(pb, SI_FILE_SIZE, "%ld\n", statbuf.st_size / 1024);
959 }
960
961 static int make_status_items(void)
962 {
963 const struct lls_command *cmd = SERVER_CMD_CMD_PTR(LS);
964 char *argv[] = {"ls", "--path", "--admissible",
965 "--listing-mode=verbose"};
966 struct ls_options opts = {.mode = LS_MODE_VERBOSE};
967 struct para_buffer pb = {.max_size = shm_get_shmmax() - 1};
968 time_t current_time;
969 int ret;
970
971 ret = lls_parse(ARRAY_SIZE(argv), argv, cmd, &opts.lpr, NULL);
972 assert(ret >= 0);
973 time(&current_time);
974 ret = print_list_item(&status_item_ls_data, &opts, &pb, current_time);
975 if (ret < 0)
976 goto out;
977 make_inode_status_items(&pb);
978 free(status_items);
979 status_items = pb.buf;
980
981 memset(&pb, 0, sizeof(pb));
982 pb.max_size = shm_get_shmmax() - 1;
983 pb.flags = PBF_SIZE_PREFIX;
984 ret = print_list_item(&status_item_ls_data, &opts, &pb, current_time);
985 if (ret < 0) {
986 free(status_items);
987 status_items = NULL;
988 return ret;
989 }
990 make_inode_status_items(&pb);
991 free(parser_friendly_status_items);
992 parser_friendly_status_items = pb.buf;
993 ret = 1;
994 out:
995 lls_free_parse_result(opts.lpr, cmd);
996 return ret;
997 }
998
999 /**
1000 * Open the audio file with highest score and set up an afd structure.
1001 *
1002 * \param afd Result pointer.
1003 *
1004 * On success, the numplayed field of the audio file selector info is increased
1005 * and the lastplayed time is set to the current time. Finally, the score of
1006 * the audio file is updated.
1007 *
1008 * \return Positive shmid on success, negative on errors.
1009 */
1010 int open_and_update_audio_file(struct audio_file_data *afd)
1011 {
1012 unsigned char file_hash[HASH_SIZE];
1013 struct osl_object afsi_obj;
1014 struct afs_info new_afsi;
1015 int ret;
1016 struct afsi_change_event_data aced;
1017 struct osl_object map, chunk_table_obj;
1018 struct ls_data *d = &status_item_ls_data;
1019 again:
1020 ret = score_get_best(&current_aft_row, &d->score);
1021 if (ret < 0)
1022 return ret;
1023 ret = get_hash_of_row(current_aft_row, &d->hash);
1024 if (ret < 0)
1025 return ret;
1026 ret = get_audio_file_path_of_row(current_aft_row, &d->path);
1027 if (ret < 0)
1028 return ret;
1029 PARA_NOTICE_LOG("%s\n", d->path);
1030 ret = get_afsi_object_of_row(current_aft_row, &afsi_obj);
1031 if (ret < 0)
1032 return ret;
1033 ret = load_afsi(&d->afsi, &afsi_obj);
1034 if (ret < 0)
1035 return ret;
1036 ret = get_afhi_of_row(current_aft_row, &afd->afhi);
1037 if (ret < 0)
1038 return ret;
1039 d->afhi = afd->afhi;
1040 d->afhi.chunk_table = afd->afhi.chunk_table = NULL;
1041 ret = osl(osl_open_disk_object(audio_file_table, current_aft_row,
1042 AFTCOL_CHUNKS, &chunk_table_obj));
1043 if (ret < 0)
1044 return ret;
1045 ret = mmap_full_file(d->path, O_RDONLY, &map.data, &map.size, &afd->fd);
1046 if (ret < 0)
1047 goto out;
1048 hash_function(map.data, map.size, file_hash);
1049 ret = hash_compare(file_hash, d->hash);
1050 para_munmap(map.data, map.size);
1051 if (ret) {
1052 ret = -E_HASH_MISMATCH;
1053 goto out;
1054 }
1055 new_afsi = d->afsi;
1056 new_afsi.num_played++;
1057 new_afsi.last_played = time(NULL);
1058 save_afsi(&new_afsi, &afsi_obj); /* in-place update */
1059
1060 afd->audio_format_id = d->afsi.audio_format_id;
1061 load_chunk_table(&afd->afhi, chunk_table_obj.data);
1062 aced.aft_row = current_aft_row;
1063 aced.old_afsi = &d->afsi;
1064 /*
1065 * No need to update the status items as the AFSI_CHANGE event will
1066 * recreate them.
1067 */
1068 ret = afs_event(AFSI_CHANGE, NULL, &aced);
1069 if (ret < 0)
1070 goto out;
1071 ret = save_afd(afd);
1072 out:
1073 free(afd->afhi.chunk_table);
1074 osl_close_disk_object(&chunk_table_obj);
1075 if (ret < 0) {
1076 PARA_ERROR_LOG("%s: %s\n", d->path, para_strerror(-ret));
1077 ret = score_delete(current_aft_row);
1078 if (ret >= 0)
1079 goto again;
1080 }
1081 return ret;
1082 }
1083
1084 static int ls_audio_format_compare(const void *a, const void *b)
1085 {
1086 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1087 return NUM_COMPARE(d1->afsi.audio_format_id, d2->afsi.audio_format_id);
1088 }
1089
1090 static int ls_duration_compare(const void *a, const void *b)
1091 {
1092 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1093 return NUM_COMPARE(d1->afhi.seconds_total, d2->afhi.seconds_total);
1094 }
1095
1096 static int ls_bitrate_compare(const void *a, const void *b)
1097 {
1098 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1099 return NUM_COMPARE(d1->afhi.bitrate, d2->afhi.bitrate);
1100 }
1101
1102 static int ls_lyrics_id_compare(const void *a, const void *b)
1103 {
1104 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1105 return NUM_COMPARE(d1->afsi.lyrics_id, d2->afsi.lyrics_id);
1106 }
1107
1108 static int ls_image_id_compare(const void *a, const void *b)
1109 {
1110 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1111 return NUM_COMPARE(d1->afsi.image_id, d2->afsi.image_id);
1112 }
1113
1114 static int ls_channels_compare(const void *a, const void *b)
1115 {
1116 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1117 return NUM_COMPARE(d1->afhi.channels, d2->afhi.channels);
1118 }
1119
1120 static int ls_frequency_compare(const void *a, const void *b)
1121 {
1122 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1123 return NUM_COMPARE(d1->afhi.frequency, d2->afhi.frequency);
1124 }
1125
1126 static int ls_num_played_compare(const void *a, const void *b)
1127 {
1128 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1129 return NUM_COMPARE(d1->afsi.num_played, d2->afsi.num_played);
1130 }
1131
1132 static int ls_last_played_compare(const void *a, const void *b)
1133 {
1134 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1135 return NUM_COMPARE(d1->afsi.last_played, d2->afsi.last_played);
1136 }
1137
1138 static int ls_score_compare(const void *a, const void *b)
1139 {
1140 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1141 return NUM_COMPARE(d1->score, d2->score);
1142 }
1143
1144 static int ls_path_compare(const void *a, const void *b)
1145 {
1146 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1147 return strcmp(d1->path, d2->path);
1148 }
1149
1150 static inline bool admissible_only(struct ls_options *opts)
1151 {
1152 return SERVER_CMD_OPT_GIVEN(LS, ADMISSIBLE, opts->lpr)
1153 || opts->sorting == LS_SORT_BY_SCORE;
1154 }
1155
1156 static int sort_matching_paths(struct ls_options *options)
1157 {
1158 const struct lls_opt_result *r_b = SERVER_CMD_OPT_RESULT(LS, BASENAME,
1159 options->lpr);
1160 size_t nmemb = options->num_matching_paths;
1161 size_t size = sizeof(*options->data_ptr);
1162 int (*compar)(const void *, const void *);
1163 int i;
1164
1165 options->data_ptr = para_malloc(nmemb * sizeof(*options->data_ptr));
1166 for (i = 0; i < nmemb; i++)
1167 options->data_ptr[i] = options->data + i;
1168
1169 /* In these cases the array is already sorted */
1170 if (admissible_only(options)) {
1171 if (options->sorting == LS_SORT_BY_SCORE)
1172 return 1;
1173 } else {
1174 if (options->sorting == LS_SORT_BY_PATH && !lls_opt_given(r_b))
1175 return 1;
1176 }
1177
1178 switch (options->sorting) {
1179 case LS_SORT_BY_PATH:
1180 compar = ls_path_compare; break;
1181 case LS_SORT_BY_SCORE:
1182 compar = ls_score_compare; break;
1183 case LS_SORT_BY_LAST_PLAYED:
1184 compar = ls_last_played_compare; break;
1185 case LS_SORT_BY_NUM_PLAYED:
1186 compar = ls_num_played_compare; break;
1187 case LS_SORT_BY_FREQUENCY:
1188 compar = ls_frequency_compare; break;
1189 case LS_SORT_BY_CHANNELS:
1190 compar = ls_channels_compare; break;
1191 case LS_SORT_BY_IMAGE_ID:
1192 compar = ls_image_id_compare; break;
1193 case LS_SORT_BY_LYRICS_ID:
1194 compar = ls_lyrics_id_compare; break;
1195 case LS_SORT_BY_BITRATE:
1196 compar = ls_bitrate_compare; break;
1197 case LS_SORT_BY_DURATION:
1198 compar = ls_duration_compare; break;
1199 case LS_SORT_BY_AUDIO_FORMAT:
1200 compar = ls_audio_format_compare; break;
1201 default:
1202 return -E_BAD_SORT;
1203 }
1204 qsort(options->data_ptr, nmemb, size, compar);
1205 return 1;
1206 }
1207
1208 /* row is either an aft_row or a row of the score table */
1209 /* TODO: Only compute widths if we need them */
1210 static int prepare_ls_row(struct osl_row *row, void *ls_opts)
1211 {
1212 int ret, i;
1213 struct ls_options *options = ls_opts;
1214 bool basename_given = SERVER_CMD_OPT_GIVEN(LS, BASENAME, options->lpr) > 0;
1215 struct ls_data *d;
1216 struct ls_widths *w;
1217 unsigned short num_digits;
1218 unsigned tmp, num_inputs;
1219 struct osl_row *aft_row;
1220 long score;
1221 char *path;
1222
1223 if (admissible_only(options)) {
1224 ret = get_score_and_aft_row(row, &score, &aft_row);
1225 if (ret < 0)
1226 return ret;
1227 } else {
1228 aft_row = row;
1229 score = 0;
1230 }
1231 ret = get_audio_file_path_of_row(aft_row, &path);
1232 if (ret < 0)
1233 return ret;
1234 if (basename_given) {
1235 char *p = strrchr(path, '/');
1236 if (p)
1237 path = p + 1;
1238 }
1239 num_inputs = lls_num_inputs(options->lpr);
1240 if (num_inputs > 0) {
1241 for (i = 0; i < num_inputs; i++) {
1242 ret = fnmatch(lls_input(i, options->lpr), path, 0);
1243 if (!ret)
1244 break;
1245 if (ret == FNM_NOMATCH)
1246 continue;
1247 return -E_FNMATCH;
1248 }
1249 if (i >= num_inputs) /* no match */
1250 return 1;
1251 }
1252 tmp = options->num_matching_paths++;
1253 if (options->num_matching_paths > options->array_size) {
1254 options->array_size++;
1255 options->array_size *= 2;
1256 options->data = para_realloc(options->data, options->array_size
1257 * sizeof(*options->data));
1258 }
1259 d = options->data + tmp;
1260 ret = get_afsi_of_row(aft_row, &d->afsi);
1261 if (ret < 0)
1262 return ret;
1263 ret = get_afhi_of_row(aft_row, &d->afhi);
1264 if (ret < 0)
1265 return ret;
1266 d->path = path;
1267 ret = get_hash_of_row(aft_row, &d->hash);
1268 if (ret < 0)
1269 goto err;
1270 w = &options->widths;
1271 GET_NUM_DIGITS(d->afsi.image_id, &num_digits);
1272 w->image_id_width = PARA_MAX(w->image_id_width, num_digits);
1273 GET_NUM_DIGITS(d->afsi.lyrics_id, &num_digits);
1274 w->lyrics_id_width = PARA_MAX(w->lyrics_id_width, num_digits);
1275 GET_NUM_DIGITS(d->afhi.bitrate, &num_digits);
1276 w->bitrate_width = PARA_MAX(w->bitrate_width, num_digits);
1277 GET_NUM_DIGITS(d->afhi.frequency, &num_digits);
1278 w->frequency_width = PARA_MAX(w->frequency_width, num_digits);
1279 GET_NUM_DIGITS(d->afsi.num_played, &num_digits);
1280 w->num_played_width = PARA_MAX(w->num_played_width, num_digits);
1281 /* get the number of chars to print this amount of time */
1282 num_digits = get_duration_width(d->afhi.seconds_total);
1283 w->duration_width = PARA_MAX(w->duration_width, num_digits);
1284 GET_NUM_DIGITS(d->afsi.amp, &num_digits);
1285 w->amp_width = PARA_MAX(w->amp_width, num_digits);
1286 num_digits = strlen(audio_format_name(d->afsi.audio_format_id));
1287 w->audio_format_width = PARA_MAX(w->audio_format_width, num_digits);
1288 if (admissible_only(options)) {
1289 GET_NUM_DIGITS(score, &num_digits);
1290 num_digits++; /* add one for the sign (space or "-") */
1291 w->score_width = PARA_MAX(w->score_width, num_digits);
1292 d->score = score;
1293 }
1294 return 1;
1295 err:
1296 return ret;
1297 }
1298
1299 static int com_ls_callback(struct afs_callback_arg *aca)
1300 {
1301 const struct lls_command *cmd = SERVER_CMD_CMD_PTR(LS);
1302 struct ls_options *opts = aca->query.data;
1303 int i = 0, ret;
1304 time_t current_time;
1305 const struct lls_opt_result *r_r;
1306
1307 ret = lls_deserialize_parse_result(
1308 (char *)aca->query.data + sizeof(*opts), cmd, &opts->lpr);
1309 assert(ret >= 0);
1310 r_r = SERVER_CMD_OPT_RESULT(LS, REVERSE, opts->lpr);
1311
1312 aca->pbout.flags = (opts->mode == LS_MODE_PARSER)? PBF_SIZE_PREFIX : 0;
1313 if (admissible_only(opts))
1314 ret = admissible_file_loop(opts, prepare_ls_row);
1315 else
1316 ret = osl(osl_rbtree_loop(audio_file_table, AFTCOL_PATH, opts,
1317 prepare_ls_row));
1318 if (ret < 0)
1319 goto out;
1320 if (opts->num_matching_paths == 0) {
1321 ret = lls_num_inputs(opts->lpr) > 0? -E_NO_MATCH : 0;
1322 goto out;
1323 }
1324 ret = sort_matching_paths(opts);
1325 if (ret < 0)
1326 goto out;
1327 time(&current_time);
1328 if (lls_opt_given(r_r))
1329 for (i = opts->num_matching_paths - 1; i >= 0; i--) {
1330 ret = print_list_item(opts->data_ptr[i], opts,
1331 &aca->pbout, current_time);
1332 if (ret < 0)
1333 goto out;
1334 }
1335 else
1336 for (i = 0; i < opts->num_matching_paths; i++) {
1337 ret = print_list_item(opts->data_ptr[i], opts,
1338 &aca->pbout, current_time);
1339 if (ret < 0)
1340 goto out;
1341 }
1342 out:
1343 lls_free_parse_result(opts->lpr, cmd);
1344 free(opts->data);
1345 free(opts->data_ptr);
1346 return ret;
1347 }
1348
1349 /* TODO: flags -h (sort by hash) */
1350 static int com_ls(struct command_context *cc, struct lls_parse_result *lpr)
1351 {
1352 const struct lls_command *cmd = SERVER_CMD_CMD_PTR(LS);
1353 struct ls_options *opts;
1354 struct osl_object query;
1355 const struct lls_opt_result *r_l = SERVER_CMD_OPT_RESULT(LS, LISTING_MODE,
1356 lpr);
1357 const struct lls_opt_result *r_s = SERVER_CMD_OPT_RESULT(LS, SORT, lpr);
1358 int ret;
1359 char *slpr;
1360
1361 ret = lls_serialize_parse_result(lpr, cmd, NULL, &query.size);
1362 assert(ret >= 0);
1363 query.size += sizeof(*opts);
1364 query.data = para_malloc(query.size);
1365 opts = query.data;
1366 memset(opts, 0, sizeof(*opts));
1367 slpr = query.data + sizeof(*opts);
1368 ret = lls_serialize_parse_result(lpr, cmd, &slpr, NULL);
1369 assert(ret >= 0);
1370 opts->mode = LS_MODE_SHORT;
1371 opts->sorting = LS_SORT_BY_PATH;
1372 if (lls_opt_given(r_l)) {
1373 const char *val = lls_string_val(0, r_l);
1374 if (!strcmp(val, "l") || !strcmp(val, "long"))
1375 opts->mode = LS_MODE_LONG;
1376 else if (!strcmp(val, "s") || !strcmp(val, "short"))
1377 opts->mode = LS_MODE_SHORT;
1378 else if (!strcmp(val, "v") || !strcmp(val, "verbose"))
1379 opts->mode = LS_MODE_VERBOSE;
1380 else if (!strcmp(val, "m") || !strcmp(val, "mbox"))
1381 opts->mode = LS_MODE_MBOX;
1382 else if (!strcmp(val, "c") || !strcmp(val, "chunk-table"))
1383 opts->mode = LS_MODE_MBOX;
1384 else if (!strcmp(val, "p") || !strcmp(val, "parser-friendly"))
1385 opts->mode = LS_MODE_PARSER;
1386 else {
1387 ret = -E_AFT_SYNTAX;
1388 goto out;
1389 }
1390 }
1391 if (lls_opt_given(r_s)) {
1392 const char *val = lls_string_val(0, r_s);
1393 if (!strcmp(val, "p") || !strcmp(val, "path"))
1394 opts->sorting = LS_SORT_BY_PATH;
1395 else if (!strcmp(val, "s") || !strcmp(val, "score"))
1396 opts->sorting = LS_SORT_BY_SCORE;
1397 else if (!strcmp(val, "l") || !strcmp(val, "lastplayed"))
1398 opts->sorting = LS_SORT_BY_LAST_PLAYED;
1399 else if (!strcmp(val, "n") || !strcmp(val, "numplayed"))
1400 opts->sorting = LS_SORT_BY_NUM_PLAYED;
1401 else if (!strcmp(val, "f") || !strcmp(val, "frquency"))
1402 opts->sorting = LS_SORT_BY_FREQUENCY;
1403 else if (!strcmp(val, "c") || !strcmp(val, "channels"))
1404 opts->sorting = LS_SORT_BY_CHANNELS;
1405 else if (!strcmp(val, "i") || !strcmp(val, "image-id"))
1406 opts->sorting = LS_SORT_BY_IMAGE_ID;
1407 else if (!strcmp(val, "y") || !strcmp(val, "lyrics-id"))
1408 opts->sorting = LS_SORT_BY_LYRICS_ID;
1409 else if (!strcmp(val, "b") || !strcmp(val, "bitrate"))
1410 opts->sorting = LS_SORT_BY_BITRATE;
1411 else if (!strcmp(val, "d") || !strcmp(val, "duration"))
1412 opts->sorting = LS_SORT_BY_DURATION;
1413 else if (!strcmp(val, "a") || !strcmp(val, "audio-format"))
1414 opts->sorting = LS_SORT_BY_AUDIO_FORMAT;
1415 else {
1416 ret = -E_AFT_SYNTAX;
1417 goto out;
1418 }
1419 }
1420 ret = send_callback_request(com_ls_callback, &query,
1421 afs_cb_result_handler, cc);
1422 out:
1423 free(query.data);
1424 return ret;
1425 }
1426 EXPORT_SERVER_CMD_HANDLER(ls);
1427
1428 /**
1429 * Call the given function for each file in the audio file table.
1430 *
1431 * \param private_data An arbitrary data pointer, passed to \a func.
1432 * \param func The custom function to be called.
1433 *
1434 * \return Standard.
1435 */
1436 int audio_file_loop(void *private_data, osl_rbtree_loop_func *func)
1437 {
1438 return osl(osl_rbtree_loop(audio_file_table, AFTCOL_HASH, private_data,
1439 func));
1440 }
1441
1442 static int find_hash_sister(unsigned char *hash, struct osl_row **result)
1443 {
1444 int ret = aft_get_row_of_hash(hash, result);
1445
1446 if (ret == -OSL_ERRNO_TO_PARA_ERROR(E_OSL_RB_KEY_NOT_FOUND))
1447 return 0;
1448 return ret;
1449 }
1450
1451 static int find_path_brother(const char *path, struct osl_row **result)
1452 {
1453 int ret = aft_get_row_of_path(path, result);
1454
1455 if (ret == -OSL_ERRNO_TO_PARA_ERROR(E_OSL_RB_KEY_NOT_FOUND))
1456 return 0;
1457 return ret;
1458 }
1459
1460 /** The format of the data stored by save_audio_file_data(). */
1461 enum com_add_buffer_offsets {
1462 /* afhi (if present) starts at this offset. */
1463 CAB_AFHI_OFFSET_POS = 0,
1464 /** Start of the chunk table (if present). */
1465 CAB_CHUNKS_OFFSET_POS = 4,
1466 /** Start of the (serialized) lopsub parse result. */
1467 CAB_LPR_OFFSET = 8,
1468 /** Audio format id. */
1469 CAB_AUDIO_FORMAT_ID_OFFSET = 12,
1470 /** The hash of the audio file being added. */
1471 CAB_HASH_OFFSET = 13,
1472 /** Start of the path of the audio file. */
1473 CAB_PATH_OFFSET = (CAB_HASH_OFFSET + HASH_SIZE),
1474 };
1475
1476 /*
1477 * Store the given data to a single buffer. Doesn't need the audio file selector
1478 * info struct as the server knows it as well.
1479 *
1480 * It's OK to call this with afhi == NULL. In this case, the audio format
1481 * handler info won't be stored in the buffer.
1482 */
1483 static void save_add_callback_buffer(unsigned char *hash, const char *path,
1484 struct afh_info *afhi, const char *slpr, size_t slpr_size,
1485 uint8_t audio_format_num, struct osl_object *obj)
1486 {
1487 size_t path_len = strlen(path) + 1;
1488 size_t afhi_size = sizeof_afhi_buf(afhi);
1489 size_t size = CAB_PATH_OFFSET + path_len + afhi_size
1490 + sizeof_chunk_table(afhi) + slpr_size;
1491 char *buf = para_malloc(size);
1492 uint32_t pos;
1493
1494 assert(size <= ~(uint32_t)0);
1495 write_u8(buf + CAB_AUDIO_FORMAT_ID_OFFSET, audio_format_num);
1496 memcpy(buf + CAB_HASH_OFFSET, hash, HASH_SIZE);
1497 strcpy(buf + CAB_PATH_OFFSET, path);
1498 pos = CAB_PATH_OFFSET + path_len;
1499 write_u32(buf + CAB_AFHI_OFFSET_POS, pos);
1500 save_afhi(afhi, buf + pos);
1501 pos += afhi_size;
1502 write_u32(buf + CAB_CHUNKS_OFFSET_POS, pos);
1503 if (afhi) {
1504 save_chunk_table(afhi, buf + pos);
1505 pos += sizeof_chunk_table(afhi);
1506 }
1507 write_u32(buf + CAB_LPR_OFFSET, pos);
1508 memcpy(buf + pos, slpr, slpr_size);
1509 assert(pos + slpr_size == size);
1510 obj->data = buf;
1511 obj->size = size;
1512 }
1513
1514 /*
1515
1516 Overview of the add command.
1517
1518 Input: What was passed to the callback by the command handler.
1519 ~~~~~~
1520 HS: Hash sister. Whether an audio file with identical hash
1521 already exists in the osl database.
1522
1523 PB: Path brother. Whether a file with the given path exists
1524 in the table.
1525
1526 F: Force flag given. Whether add was called with -f.
1527
1528 output: Action performed by the callback.
1529 ~~~~~~~
1530 AFHI: Whether afhi and chunk table are computed and sent.
1531 ACTION: Table modifications to be done by the callback.
1532
1533 +----+----+---+------+---------------------------------------------------+
1534 | HS | PB | F | AFHI | ACTION
1535 +----+----+---+------+---------------------------------------------------+
1536 | Y | Y | Y | Y | if HS != PB: remove PB. HS: force afhi update,
1537 | | update path, keep afsi
1538 +----+----+---+------+---------------------------------------------------+
1539 | Y | Y | N | N | if HS == PB: do not send callback request at all.
1540 | | otherwise: remove PB, HS: update path, keep afhi,
1541 | | afsi.
1542 +----+----+---+------+---------------------------------------------------+
1543 | Y | N | Y | Y | (rename) force afhi update of HS, update path of
1544 | | HS, keep afsi
1545 +----+----+---+------+---------------------------------------------------+
1546 | Y | N | N | N | (file rename) update path of HS, keep afsi, afhi
1547 +----+----+---+------+---------------------------------------------------+
1548 | N | Y | Y | Y | (file change) update afhi, hash, of PB, keep afsi
1549 | | (force has no effect)
1550 +----+----+---+------+---------------------------------------------------+
1551 | N | Y | N | Y | (file change) update afhi, hash of PB, keep afsi
1552 +----+----+---+------+---------------------------------------------------+
1553 | N | N | Y | Y | (new file) create new entry (force has no effect)
1554 +----+----+---+------+---------------------------------------------------+
1555 | N | N | N | Y | (new file) create new entry
1556 +----+----+---+------+---------------------------------------------------+
1557
1558 Notes:
1559
1560 afhi <=> force or no HS
1561 F => AFHI
1562
1563 */
1564
1565 static int com_add_callback(struct afs_callback_arg *aca)
1566 {
1567 char *buf = aca->query.data, *path;
1568 struct osl_row *pb, *aft_row;
1569 struct osl_row *hs;
1570 struct osl_object objs[NUM_AFT_COLUMNS];
1571 unsigned char *hash;
1572 char asc[2 * HASH_SIZE + 1];
1573 int ret;
1574 char afsi_buf[AFSI_SIZE];
1575 char *slpr = buf + read_u32(buf + CAB_LPR_OFFSET);
1576 struct afs_info default_afsi = {.last_played = 0};
1577 uint16_t afhi_offset, chunks_offset;
1578 const struct lls_command *cmd = SERVER_CMD_CMD_PTR(ADD);
1579 const struct lls_opt_result *r_f, *r_v;
1580
1581 ret = lls_deserialize_parse_result(slpr, cmd, &aca->lpr);
1582 assert(ret >= 0);
1583 r_f = SERVER_CMD_OPT_RESULT(ADD, FORCE, aca->lpr);
1584 r_v = SERVER_CMD_OPT_RESULT(ADD, VERBOSE, aca->lpr);
1585
1586 hash = (unsigned char *)buf + CAB_HASH_OFFSET;
1587 hash_to_asc(hash, asc);
1588 objs[AFTCOL_HASH].data = buf + CAB_HASH_OFFSET;
1589 objs[AFTCOL_HASH].size = HASH_SIZE;
1590
1591 path = buf + CAB_PATH_OFFSET;
1592 objs[AFTCOL_PATH].data = path;
1593 objs[AFTCOL_PATH].size = strlen(path) + 1;
1594
1595 PARA_INFO_LOG("request to add %s\n", path);
1596 ret = find_hash_sister(hash, &hs);
1597 if (ret < 0)
1598 goto out;
1599 ret = find_path_brother(path, &pb);
1600 if (ret < 0)
1601 goto out;
1602 if (hs && pb && hs == pb && !lls_opt_given(r_f)) {
1603 if (lls_opt_given(r_v))
1604 para_printf(&aca->pbout, "ignoring duplicate\n");
1605 ret = 1;
1606 goto out;
1607 }
1608 if (hs && hs != pb) {
1609 struct osl_object obj;
1610 if (pb) { /* hs trumps pb, remove pb */
1611 if (lls_opt_given(r_v))
1612 para_printf(&aca->pbout, "removing %s\n", path);
1613 ret = afs_event(AUDIO_FILE_REMOVE, &aca->pbout, pb);
1614 if (ret < 0)
1615 goto out;
1616 ret = osl(osl_del_row(audio_file_table, pb));
1617 if (ret < 0)
1618 goto out;
1619 pb = NULL;
1620 }
1621 /* file rename, update hs' path */
1622 if (lls_opt_given(r_v)) {
1623 ret = osl(osl_get_object(audio_file_table, hs,
1624 AFTCOL_PATH, &obj));
1625 if (ret < 0)
1626 goto out;
1627 para_printf(&aca->pbout, "renamed from %s\n",
1628 (char *)obj.data);
1629 }
1630 ret = osl(osl_update_object(audio_file_table, hs, AFTCOL_PATH,
1631 &objs[AFTCOL_PATH]));
1632 if (ret < 0)
1633 goto out;
1634 ret = afs_event(AUDIO_FILE_RENAME, &aca->pbout, hs);
1635 if (ret < 0)
1636 goto out;
1637 if (!lls_opt_given(r_f))
1638 goto out;
1639 }
1640 /* no hs or force mode, child must have sent afhi */
1641 afhi_offset = read_u32(buf + CAB_AFHI_OFFSET_POS);
1642 chunks_offset = read_u32(buf + CAB_CHUNKS_OFFSET_POS);
1643
1644 objs[AFTCOL_AFHI].data = buf + afhi_offset;
1645 objs[AFTCOL_AFHI].size = chunks_offset - afhi_offset;
1646 ret = -E_NO_AFHI;
1647 if (!objs[AFTCOL_AFHI].size) /* "impossible" */
1648 goto out;
1649 objs[AFTCOL_CHUNKS].data = buf + chunks_offset;
1650 objs[AFTCOL_CHUNKS].size = aca->query.size - chunks_offset;
1651 if (pb && !hs) { /* update pb's hash */
1652 char old_asc[2 * HASH_SIZE + 1];
1653 unsigned char *old_hash;
1654 ret = get_hash_of_row(pb, &old_hash);
1655 if (ret < 0)
1656 goto out;
1657 hash_to_asc(old_hash, old_asc);
1658 if (lls_opt_given(r_v))
1659 para_printf(&aca->pbout, "file change: %s -> %s\n",
1660 old_asc, asc);
1661 ret = osl(osl_update_object(audio_file_table, pb, AFTCOL_HASH,
1662 &objs[AFTCOL_HASH]));
1663 if (ret < 0)
1664 goto out;
1665 }
1666 if (hs || pb) { /* (hs != NULL and pb != NULL) implies hs == pb */
1667 struct osl_row *row = pb? pb : hs;
1668 /* update afhi and chunk_table */
1669 if (lls_opt_given(r_v))
1670 para_printf(&aca->pbout,
1671 "updating afhi and chunk table\n");
1672 ret = osl(osl_update_object(audio_file_table, row, AFTCOL_AFHI,
1673 &objs[AFTCOL_AFHI]));
1674 if (ret < 0)
1675 goto out;
1676 ret = osl(osl_update_object(audio_file_table, row, AFTCOL_CHUNKS,
1677 &objs[AFTCOL_CHUNKS]));
1678 if (ret < 0)
1679 goto out;
1680 ret = afs_event(AFHI_CHANGE, &aca->pbout, row);
1681 goto out;
1682 }
1683 /* new entry, use default afsi */
1684 if (lls_opt_given(r_v))
1685 para_printf(&aca->pbout, "new file\n");
1686 default_afsi.last_played = time(NULL) - 365 * 24 * 60 * 60;
1687 default_afsi.audio_format_id = read_u8(buf + CAB_AUDIO_FORMAT_ID_OFFSET);
1688
1689 objs[AFTCOL_AFSI].data = &afsi_buf;
1690 objs[AFTCOL_AFSI].size = AFSI_SIZE;
1691 save_afsi(&default_afsi, &objs[AFTCOL_AFSI]);
1692 ret = osl(osl_add_and_get_row(audio_file_table, objs, &aft_row));
1693 if (ret < 0)
1694 goto out;
1695 ret = afs_event(AUDIO_FILE_ADD, &aca->pbout, aft_row);
1696 out:
1697 if (ret < 0)
1698 para_printf(&aca->pbout, "could not add %s\n", path);
1699 lls_free_parse_result(aca->lpr, cmd);
1700 return ret;
1701 }
1702
1703 /* Used by com_add(). */
1704 struct private_add_data {
1705 /* The pointer passed to the original command handler. */
1706 struct command_context *cc;
1707 /* Contains the flags given at the command line. */
1708 struct lls_parse_result *lpr;
1709 /* Serialized lopsub parse result. */
1710 char *slpr;
1711 /* Number of bytes. */
1712 size_t slpr_size;
1713 };
1714
1715 static int path_brother_callback(struct afs_callback_arg *aca)
1716 {
1717 char *path = aca->query.data;
1718 struct osl_row *path_brother;
1719 int ret = find_path_brother(path, &path_brother);
1720 if (ret <= 0)
1721 return ret;
1722 return pass_buffer_as_shm(aca->fd, SBD_OUTPUT, (char *)&path_brother,
1723 sizeof(path_brother));
1724 }
1725
1726 static int hash_sister_callback(struct afs_callback_arg *aca)
1727 {
1728 unsigned char *hash = aca->query.data;
1729 struct osl_row *hash_sister;
1730 int ret = find_hash_sister(hash, &hash_sister);
1731
1732 if (ret <= 0)
1733 return ret;
1734 return pass_buffer_as_shm(aca->fd, SBD_OUTPUT, (char *)&hash_sister,
1735 sizeof(hash_sister));
1736 }
1737
1738 static int get_row_pointer_from_result(struct osl_object *result,
1739 __a_unused uint8_t band, void *private)
1740 {
1741 struct osl_row **row = private;
1742
1743 if (band == SBD_OUTPUT)
1744 *row = *(struct osl_row **)(result->data);
1745 return 1;
1746 }
1747
1748 static int add_one_audio_file(const char *path, void *private_data)
1749 {
1750 int ret, send_ret = 1, fd;
1751 uint8_t format_num = -1;
1752 struct private_add_data *pad = private_data;
1753 struct afh_info afhi, *afhi_ptr = NULL;
1754 struct osl_row *pb = NULL, *hs = NULL; /* path brother/hash sister */
1755 struct osl_object map, obj = {.data = NULL}, query;
1756 unsigned char hash[HASH_SIZE];
1757 bool a_given = SERVER_CMD_OPT_GIVEN(ADD, ALL, pad->lpr);
1758 bool f_given = SERVER_CMD_OPT_GIVEN(ADD, FORCE, pad->lpr);
1759 bool l_given = SERVER_CMD_OPT_GIVEN(ADD, LAZY, pad->lpr);
1760 bool v_given = SERVER_CMD_OPT_GIVEN(ADD, VERBOSE, pad->lpr);
1761
1762 ret = guess_audio_format(path);
1763 if (ret < 0 && !a_given) {
1764 ret = 0;
1765 goto out_free;
1766 }
1767 query.data = (char *)path;
1768 query.size = strlen(path) + 1;
1769 ret = send_callback_request(path_brother_callback, &query,
1770 get_row_pointer_from_result, &pb);
1771 if (ret < 0 && ret != -OSL_ERRNO_TO_PARA_ERROR(E_OSL_RB_KEY_NOT_FOUND))
1772 goto out_free;
1773 ret = 1;
1774 if (pb && l_given) { /* lazy is really cheap */
1775 if (v_given)
1776 send_ret = send_sb_va(&pad->cc->scc, SBD_OUTPUT,
1777 "lazy-ignore: %s\n", path);
1778 goto out_free;
1779 }
1780 /* We still want to add this file. Compute its hash. */
1781 ret = mmap_full_file(path, O_RDONLY, &map.data, &map.size, &fd);
1782 if (ret < 0)
1783 goto out_free;
1784 hash_function(map.data, map.size, hash);
1785
1786 /* Check whether the database contains a file with the same hash. */
1787 query.data = hash;
1788 query.size = HASH_SIZE;
1789 ret = send_callback_request(hash_sister_callback, &query,
1790 get_row_pointer_from_result, &hs);
1791 if (ret < 0)
1792 goto out_unmap;
1793 /* Return success if we already know this file. */
1794 ret = 1;
1795 if (pb && hs && hs == pb && !f_given) {
1796 if (v_given)
1797 send_ret = send_sb_va(&pad->cc->scc, SBD_OUTPUT,
1798 "%s exists, not forcing update\n", path);
1799 goto out_unmap;
1800 }
1801 /*
1802 * We won't recalculate the audio format info and the chunk table if
1803 * there is a hash sister and FORCE was not given.
1804 */
1805 if (!hs || f_given) {
1806 ret = compute_afhi(path, map.data, map.size, fd, &afhi);
1807 if (ret < 0)
1808 goto out_unmap;
1809 format_num = ret;
1810 afhi_ptr = &afhi;
1811 }
1812 munmap(map.data, map.size);
1813 close(fd);
1814 if (v_given) {
1815 send_ret = send_sb_va(&pad->cc->scc, SBD_OUTPUT,
1816 "adding %s\n", path);
1817 if (send_ret < 0)
1818 goto out_free;
1819 }
1820 save_add_callback_buffer(hash, path, afhi_ptr, pad->slpr,
1821 pad->slpr_size, format_num, &obj);
1822 /* Ask afs to consider this entry for adding. */
1823 ret = send_callback_request(com_add_callback, &obj,
1824 afs_cb_result_handler, pad->cc);
1825 goto out_free;
1826
1827 out_unmap:
1828 close(fd);
1829 munmap(map.data, map.size);
1830 out_free:
1831 if (ret < 0 && send_ret >= 0)
1832 send_ret = send_sb_va(&pad->cc->scc, SBD_ERROR_LOG,
1833 "failed to add %s (%s)\n", path, para_strerror(-ret));
1834 free(obj.data);
1835 clear_afhi(afhi_ptr);
1836 /* Stop adding files only on send errors. */
1837 return send_ret;
1838 }
1839
1840 static int com_add(struct command_context *cc, struct lls_parse_result *lpr)
1841 {
1842 int i, ret;
1843 struct private_add_data pad = {.cc = cc, .lpr = lpr};
1844 const struct lls_command *cmd = SERVER_CMD_CMD_PTR(ADD);
1845 unsigned num_inputs;
1846 char *errctx;
1847
1848 ret = lls(lls_check_arg_count(lpr, 1, INT_MAX, &errctx));
1849 if (ret < 0) {
1850 send_errctx(cc, errctx);
1851 return ret;
1852 }
1853 ret = lls_serialize_parse_result(lpr, cmd, &pad.slpr, &pad.slpr_size);
1854 assert(ret >= 0);
1855 num_inputs = lls_num_inputs(lpr);
1856 for (i = 0; i < num_inputs; i++) {
1857 char *path;
1858 ret = verify_path(lls_input(i, lpr), &path);
1859 if (ret < 0) {
1860 ret = send_sb_va(&cc->scc, SBD_ERROR_LOG, "%s: %s\n",
1861 lls_input(i, lpr), para_strerror(-ret));
1862 if (ret < 0)
1863 goto out;
1864 continue;
1865 }
1866 if (ret == 1) /* directory */
1867 ret = for_each_file_in_dir(path, add_one_audio_file,
1868 &pad);
1869 else /* regular file */
1870 ret = add_one_audio_file(path, &pad);
1871 if (ret < 0) {
1872 send_sb_va(&cc->scc, SBD_OUTPUT, "%s: %s\n", path,
1873 para_strerror(-ret));
1874 free(path);
1875 return ret;
1876 }
1877 free(path);
1878 }
1879 ret = 1;
1880 out:
1881 free(pad.slpr);
1882 return ret;
1883 }
1884 EXPORT_SERVER_CMD_HANDLER(add);
1885
1886 /**
1887 * Flags used by the touch command.
1888 *
1889 * \sa com_touch().
1890 */
1891 enum touch_flags {
1892 /** Whether the \p FNM_PATHNAME flag should be passed to fnmatch(). */
1893 TOUCH_FLAG_FNM_PATHNAME = 1,
1894 /** Activates verbose mode. */
1895 TOUCH_FLAG_VERBOSE = 2
1896 };
1897
1898 static int touch_audio_file(__a_unused struct osl_table *table,
1899 struct osl_row *row, const char *name, void *data)
1900 {
1901 struct afs_callback_arg *aca = data;
1902 bool v_given = SERVER_CMD_OPT_GIVEN(TOUCH, VERBOSE, aca->lpr);
1903 const struct lls_opt_result *r_n, *r_l, *r_i, *r_y, *r_a;
1904 int ret;
1905 struct osl_object obj;
1906 struct afs_info old_afsi, new_afsi;
1907 bool no_options;
1908 struct afsi_change_event_data aced;
1909
1910 r_n = SERVER_CMD_OPT_RESULT(TOUCH, NUMPLAYED, aca->lpr);
1911 r_l = SERVER_CMD_OPT_RESULT(TOUCH, LASTPLAYED, aca->lpr);
1912 r_i = SERVER_CMD_OPT_RESULT(TOUCH, IMAGE_ID, aca->lpr);
1913 r_y = SERVER_CMD_OPT_RESULT(TOUCH, LYRICS_ID, aca->lpr);
1914 r_a = SERVER_CMD_OPT_RESULT(TOUCH, AMP, aca->lpr);
1915 no_options = !lls_opt_given(r_n) && !lls_opt_given(r_l) && !lls_opt_given(r_i)
1916 && !lls_opt_given(r_y) && !lls_opt_given(r_a);
1917
1918 ret = get_afsi_object_of_row(row, &obj);
1919 if (ret < 0) {
1920 para_printf(&aca->pbout, "cannot touch %s\n", name);
1921 return ret;
1922 }
1923 ret = load_afsi(&old_afsi, &obj);
1924 if (ret < 0) {
1925 para_printf(&aca->pbout, "cannot touch %s\n", name);
1926 return ret;
1927 }
1928 new_afsi = old_afsi;
1929 if (no_options) {
1930 new_afsi.num_played++;
1931 new_afsi.last_played = time(NULL);
1932 if (v_given)
1933 para_printf(&aca->pbout, "%s: num_played = %u, "
1934 "last_played = now()\n", name,
1935 new_afsi.num_played);
1936 } else {
1937 if (lls_opt_given(r_l))
1938 new_afsi.last_played = lls_uint64_val(0, r_l);
1939 if (lls_opt_given(r_n))
1940 new_afsi.num_played = lls_uint32_val(0, r_n);
1941 if (lls_opt_given(r_i))
1942 new_afsi.image_id = lls_uint32_val(0, r_i);
1943 if (lls_opt_given(r_y))
1944 new_afsi.lyrics_id = lls_uint32_val(0, r_y);
1945 if (lls_opt_given(r_a))
1946 new_afsi.amp = lls_uint32_val(0, r_a);
1947 if (v_given)
1948 para_printf(&aca->pbout, "touching %s\n", name);
1949 }
1950 save_afsi(&new_afsi, &obj); /* in-place update */
1951 aced.aft_row = row;
1952 aced.old_afsi = &old_afsi;
1953 return afs_event(AFSI_CHANGE, &aca->pbout, &aced);
1954 }
1955
1956 static int com_touch_callback(struct afs_callback_arg *aca)
1957 {
1958 const struct lls_command *cmd = SERVER_CMD_CMD_PTR(TOUCH);
1959 bool p_given;
1960 const struct lls_opt_result *r_i, *r_y;
1961 int ret;
1962 struct pattern_match_data pmd = {
1963 .table = audio_file_table,
1964 .loop_col_num = AFTCOL_HASH,
1965 .match_col_num = AFTCOL_PATH,
1966 .data = aca,
1967 .action = touch_audio_file
1968 };
1969
1970 ret = lls_deserialize_parse_result(aca->query.data, cmd, &aca->lpr);
1971 assert(ret >= 0);
1972 pmd.lpr = aca->lpr;
1973
1974 r_i = SERVER_CMD_OPT_RESULT(TOUCH, IMAGE_ID, aca->lpr);
1975 if (lls_opt_given(r_i)) {
1976 uint32_t id = lls_uint32_val(0, r_i);
1977 ret = img_get_name_by_id(id, NULL);
1978 if (ret < 0) {
1979 para_printf(&aca->pbout, "invalid image ID: %u\n", id);
1980 return ret;
1981 }
1982 }
1983 r_y = SERVER_CMD_OPT_RESULT(TOUCH, LYRICS_ID, aca->lpr);
1984 if (lls_opt_given(r_y)) {
1985 uint32_t id = lls_uint32_val(0, r_y);
1986 ret = lyr_get_name_by_id(id, NULL);
1987 if (ret < 0) {
1988 para_printf(&aca->pbout, "invalid lyrics ID: %u\n", id);
1989 return ret;
1990 }
1991 }
1992 p_given = SERVER_CMD_OPT_GIVEN(TOUCH, PATHNAME_MATCH, aca->lpr);
1993 if (p_given)
1994 pmd.fnmatch_flags |= FNM_PATHNAME;
1995 ret = for_each_matching_row(&pmd);
1996 if (ret >= 0 && pmd.num_matches == 0)
1997 ret = -E_NO_MATCH;
1998 lls_free_parse_result(aca->lpr, cmd);
1999 return ret;
2000 }
2001
2002 static int com_touch(struct command_context *cc, struct lls_parse_result *lpr)
2003 {
2004 const struct lls_command *cmd = SERVER_CMD_CMD_PTR(TOUCH);
2005 int ret;
2006 char *errctx;
2007
2008 ret = lls(lls_check_arg_count(lpr, 1, INT_MAX, &errctx));
2009 if (ret < 0) {
2010 send_errctx(cc, errctx);
2011 return ret;
2012 }
2013 return send_lls_callback_request(com_touch_callback, cmd, lpr, cc);
2014 }
2015 EXPORT_SERVER_CMD_HANDLER(touch);
2016
2017 static int remove_audio_file(__a_unused struct osl_table *table,
2018 struct osl_row *row, const char *name, void *data)
2019 {
2020 struct afs_callback_arg *aca = data;
2021 bool v_given = SERVER_CMD_OPT_GIVEN(RM, VERBOSE, aca->lpr);
2022 int ret;
2023
2024 if (v_given)
2025 para_printf(&aca->pbout, "removing %s\n", name);
2026 ret = afs_event(AUDIO_FILE_REMOVE, &aca->pbout, row);
2027 if (ret < 0)
2028 return ret;
2029 ret = osl(osl_del_row(audio_file_table, row));
2030 if (ret < 0)
2031 para_printf(&aca->pbout, "cannot remove %s\n", name);
2032 return ret;
2033 }
2034
2035 static int com_rm_callback(struct afs_callback_arg *aca)
2036 {
2037 const struct lls_command *cmd = SERVER_CMD_CMD_PTR(RM);
2038 int ret;
2039 struct pattern_match_data pmd = {
2040 .table = audio_file_table,
2041 .loop_col_num = AFTCOL_HASH,
2042 .match_col_num = AFTCOL_PATH,
2043 .data = aca,
2044 .action = remove_audio_file
2045 };
2046 bool v_given, p_given, f_given;
2047
2048 ret = lls_deserialize_parse_result(aca->query.data, cmd, &aca->lpr);
2049 assert(ret >= 0);
2050 pmd.lpr = aca->lpr;
2051 v_given = SERVER_CMD_OPT_GIVEN(RM, VERBOSE, aca->lpr);
2052 p_given = SERVER_CMD_OPT_GIVEN(RM, PATHNAME_MATCH, aca->lpr);
2053 f_given = SERVER_CMD_OPT_GIVEN(RM, FORCE, aca->lpr);
2054
2055 if (p_given)
2056 pmd.fnmatch_flags |= FNM_PATHNAME;
2057 ret = for_each_matching_row(&pmd);
2058 if (ret < 0)
2059 goto out;
2060 if (pmd.num_matches == 0) {
2061 if (!f_given)
2062 ret = -E_NO_MATCH;
2063 } else if (v_given)
2064 para_printf(&aca->pbout, "removed %u file(s)\n",
2065 pmd.num_matches);
2066 out:
2067 lls_free_parse_result(aca->lpr, cmd);
2068 return ret;
2069 }
2070
2071 /* TODO options: -r (recursive) */
2072 static int com_rm(struct command_context *cc, struct lls_parse_result *lpr)
2073 {
2074 const struct lls_command *cmd = SERVER_CMD_CMD_PTR(RM);
2075 char *errctx;
2076 int ret;
2077
2078 ret = lls(lls_check_arg_count(lpr, 1, INT_MAX, &errctx));
2079 if (ret < 0) {
2080 send_errctx(cc, errctx);
2081 return ret;
2082 }
2083 return send_lls_callback_request(com_rm_callback, cmd, lpr, cc);
2084 }
2085 EXPORT_SERVER_CMD_HANDLER(rm);
2086
2087 /** Data passed to the action handler of com_cpsi(). */
2088 struct cpsi_action_data {
2089 /** Values are copied from here. */
2090 struct afs_info source_afsi;
2091 /** What was passed to com_cpsi_callback(). */
2092 struct afs_callback_arg *aca;
2093 bool copy_all;
2094 };
2095
2096 static int copy_selector_info(__a_unused struct osl_table *table,
2097 struct osl_row *row, const char *name, void *data)
2098 {
2099 struct cpsi_action_data *cad = data;
2100 struct osl_object target_afsi_obj;
2101 int ret;
2102 struct afs_info old_afsi, target_afsi;
2103 struct afsi_change_event_data aced;
2104 bool a_given, y_given, i_given, l_given, n_given, v_given;
2105
2106 a_given = SERVER_CMD_OPT_GIVEN(CPSI, ATTRIBUTE_BITMAP, cad->aca->lpr);
2107 y_given = SERVER_CMD_OPT_GIVEN(CPSI, LYRICS_ID, cad->aca->lpr);
2108 i_given = SERVER_CMD_OPT_GIVEN(CPSI, IMAGE_ID, cad->aca->lpr);
2109 l_given = SERVER_CMD_OPT_GIVEN(CPSI, LASTPLAYED, cad->aca->lpr);
2110 n_given = SERVER_CMD_OPT_GIVEN(CPSI, NUMPLAYED, cad->aca->lpr);
2111 v_given = SERVER_CMD_OPT_GIVEN(CPSI, VERBOSE, cad->aca->lpr);
2112
2113 ret = get_afsi_object_of_row(row, &target_afsi_obj);
2114 if (ret < 0)
2115 return ret;
2116 load_afsi(&target_afsi, &target_afsi_obj);
2117 old_afsi = target_afsi;
2118 if (cad->copy_all || y_given)
2119 target_afsi.lyrics_id = cad->source_afsi.lyrics_id;
2120 if (cad->copy_all || i_given)
2121 target_afsi.image_id = cad->source_afsi.image_id;
2122 if (cad->copy_all || l_given)
2123 target_afsi.last_played = cad->source_afsi.last_played;
2124 if (cad->copy_all || n_given)
2125 target_afsi.num_played = cad->source_afsi.num_played;
2126 if (cad->copy_all || a_given)
2127 target_afsi.attributes = cad->source_afsi.attributes;
2128 save_afsi(&target_afsi, &target_afsi_obj); /* in-place update */
2129 if (v_given)
2130 para_printf(&cad->aca->pbout, "copied afsi to %s\n", name);
2131 aced.aft_row = row;
2132 aced.old_afsi = &old_afsi;
2133 return afs_event(AFSI_CHANGE, &cad->aca->pbout, &aced);
2134 }
2135
2136 static int com_cpsi_callback(struct afs_callback_arg *aca)
2137 {
2138 const struct lls_command *cmd = SERVER_CMD_CMD_PTR(CPSI);
2139 bool a_given, y_given, i_given, l_given, n_given, v_given;
2140 struct cpsi_action_data cad = {.aca = aca};
2141 int ret;
2142 struct pattern_match_data pmd = {
2143 .table = audio_file_table,
2144 .loop_col_num = AFTCOL_HASH,
2145 .match_col_num = AFTCOL_PATH,
2146 .input_skip = 1, /* skip first argument (source file) */
2147 .data = &cad,
2148 .action = copy_selector_info
2149 };
2150
2151 ret = lls_deserialize_parse_result(aca->query.data, cmd, &aca->lpr);
2152 assert(ret >= 0);
2153 pmd.lpr = aca->lpr;
2154
2155 a_given = SERVER_CMD_OPT_GIVEN(CPSI, ATTRIBUTE_BITMAP, aca->lpr);
2156 y_given = SERVER_CMD_OPT_GIVEN(CPSI, LYRICS_ID, aca->lpr);
2157 i_given = SERVER_CMD_OPT_GIVEN(CPSI, IMAGE_ID, aca->lpr);
2158 l_given = SERVER_CMD_OPT_GIVEN(CPSI, LASTPLAYED, aca->lpr);
2159 n_given = SERVER_CMD_OPT_GIVEN(CPSI, NUMPLAYED, aca->lpr);
2160 v_given = SERVER_CMD_OPT_GIVEN(CPSI, VERBOSE, aca->lpr);
2161 cad.copy_all = !a_given && !y_given && !i_given && !l_given && !n_given;
2162
2163 ret = get_afsi_of_path(lls_input(0, aca->lpr), &cad.source_afsi);
2164 if (ret < 0)
2165 goto out;
2166 ret = for_each_matching_row(&pmd);
2167 if (ret < 0)
2168 goto out;
2169 if (pmd.num_matches > 0) {
2170 if (v_given)
2171 para_printf(&aca->pbout, "updated afsi of %u file(s)\n",
2172 pmd.num_matches);
2173 } else
2174 ret = -E_NO_MATCH;
2175 out:
2176 lls_free_parse_result(aca->lpr, cmd);
2177 return ret;
2178 }
2179
2180 static int com_cpsi(struct command_context *cc, struct lls_parse_result *lpr)
2181 {
2182 const struct lls_command *cmd = SERVER_CMD_CMD_PTR(CPSI);
2183 char *errctx;
2184 int ret = lls(lls_check_arg_count(lpr, 2, INT_MAX, &errctx));
2185 if (ret < 0) {
2186 send_errctx(cc, errctx);
2187 return ret;
2188 }
2189 return send_lls_callback_request(com_cpsi_callback, cmd, lpr, cc);
2190 }
2191 EXPORT_SERVER_CMD_HANDLER(cpsi);
2192
2193 struct change_atts_data {
2194 uint64_t add_mask, del_mask;
2195 struct afs_callback_arg *aca;
2196 };
2197
2198 static int change_atts(__a_unused struct osl_table *table,
2199 struct osl_row *row, __a_unused const char *name, void *data)
2200 {
2201 int ret;
2202 struct osl_object obj;
2203 struct afs_info old_afsi, new_afsi;
2204 struct afsi_change_event_data aced = {
2205 .aft_row = row,
2206 .old_afsi = &old_afsi
2207 };
2208 struct change_atts_data *cad = data;
2209
2210 ret = get_afsi_object_of_row(row, &obj);
2211 if (ret < 0)
2212 return ret;
2213 ret = load_afsi(&old_afsi, &obj);
2214 if (ret < 0)
2215 return ret;
2216 new_afsi = old_afsi;
2217 new_afsi.attributes |= cad->add_mask;
2218 new_afsi.attributes &= ~cad->del_mask;
2219 save_afsi(&new_afsi, &obj); /* in-place update */
2220 return afs_event(AFSI_CHANGE, &cad->aca->pbout, &aced);
2221 }
2222
2223 static int com_setatt_callback(struct afs_callback_arg *aca)
2224 {
2225 const struct lls_command *cmd = SERVER_CMD_CMD_PTR(SETATT);
2226 int i, ret;
2227 struct change_atts_data cad = {.aca = aca};
2228 struct pattern_match_data pmd = {
2229 .table = audio_file_table,
2230 .loop_col_num = AFTCOL_HASH,
2231 .match_col_num = AFTCOL_PATH,
2232 .pm_flags = PM_SKIP_EMPTY_NAME,
2233 .data = &cad,
2234 .action = change_atts
2235 };
2236 unsigned num_inputs;
2237
2238 ret = lls_deserialize_parse_result(aca->query.data, cmd, &aca->lpr);
2239 assert(ret >= 0);
2240 pmd.lpr = aca->lpr;
2241
2242 num_inputs = lls_num_inputs(aca->lpr);
2243 for (i = 0; i < num_inputs; i++) {
2244 unsigned char bitnum;
2245 uint64_t one = 1;
2246 const char *arg = lls_input(i, aca->lpr);
2247 char c, *p;
2248 size_t len = strlen(arg);
2249
2250 ret = -E_ATTR_SYNTAX;
2251 if (len == 0)
2252 goto out;
2253 c = arg[len - 1];
2254 if (c != '+' && c != '-') {
2255 if (cad.add_mask == 0 && cad.del_mask == 0)
2256 goto out; /* no attribute modifier given */
2257 goto set_atts;
2258 }
2259 p = para_malloc(len);
2260 memcpy(p, arg, len - 1);
2261 p[len - 1] = '\0';
2262 ret = get_attribute_bitnum_by_name(p, &bitnum);
2263 free(p);
2264 if (ret < 0) {
2265 para_printf(&aca->pbout, "invalid argument: %s\n", arg);
2266 goto out;
2267 }
2268 if (c == '+')
2269 cad.add_mask |= (one << bitnum);
2270 else
2271 cad.del_mask |= (one << bitnum);
2272 }
2273 /* no pattern given */
2274 ret = -E_ATTR_SYNTAX;
2275 goto out;
2276 set_atts:
2277 pmd.input_skip = i;
2278 ret = for_each_matching_row(&pmd);
2279 if (ret >= 0 && pmd.num_matches == 0)
2280 ret = -E_NO_MATCH;
2281 out:
2282 lls_free_parse_result(aca->lpr, cmd);
2283 return ret;
2284 }
2285
2286 static int com_setatt(struct command_context *cc, struct lls_parse_result *lpr)
2287 {
2288 const struct lls_command *cmd = SERVER_CMD_CMD_PTR(SETATT);
2289 char *errctx;
2290 int ret = lls(lls_check_arg_count(lpr, 2, INT_MAX, &errctx));
2291
2292 if (ret < 0) {
2293 send_errctx(cc, errctx);
2294 return ret;
2295 }
2296 return send_lls_callback_request(com_setatt_callback, cmd, lpr, cc);
2297 }
2298 EXPORT_SERVER_CMD_HANDLER(setatt);
2299
2300 static int afs_stat_callback(struct afs_callback_arg *aca)
2301 {
2302 int *parser_friendly = aca->query.data;
2303 char *buf = *parser_friendly?
2304 parser_friendly_status_items : status_items;
2305
2306 if (!buf)
2307 return 0;
2308 return pass_buffer_as_shm(aca->fd, SBD_OUTPUT, buf, strlen(buf));
2309 }
2310
2311 /**
2312 * Get the current afs status items from the afs process and send it.
2313 *
2314 * \param cc The command context, used e.g. for data encryption.
2315 * \param parser_friendly Whether parser-friendly output format should be used.
2316 *
2317 * As the contents of the afs status items change in time and the command
2318 * handler only has a COW version created at fork time, it can not send
2319 * up-to-date afs status items directly. Therefore the usual callback mechanism
2320 * is used to pass the status items from the afs process to the command handler
2321 * via a shared memory area and a pipe.
2322 *
2323 * \return The return value of the underlying call to \ref send_callback_request().
2324 */
2325 int send_afs_status(struct command_context *cc, int parser_friendly)
2326 {
2327 struct osl_object query = {.data = &parser_friendly,
2328 .size = sizeof(parser_friendly)};
2329
2330 return send_callback_request(afs_stat_callback, &query,
2331 afs_cb_result_handler, cc);
2332 }
2333
2334 /* returns success on non-fatal errors to keep the loop going */
2335 static int check_audio_file(struct osl_row *row, void *data)
2336 {
2337 char *path;
2338 struct para_buffer *pb = data;
2339 struct stat statbuf;
2340 int ret = get_audio_file_path_of_row(row, &path);
2341 struct afs_info afsi;
2342 char *blob_name;
2343
2344 if (ret < 0) {
2345 para_printf(pb, "%s\n", para_strerror(-ret));
2346 return ret;
2347 }
2348 if (stat(path, &statbuf) < 0)
2349 para_printf(pb, "%s: stat error (%s)\n", path, strerror(errno));
2350 else if (!S_ISREG(statbuf.st_mode))
2351 para_printf(pb, "%s: not a regular file\n", path);
2352 ret = get_afsi_of_row(row, &afsi);
2353 if (ret < 0) {
2354 para_printf(pb, "%s: %s\n", path, para_strerror(-ret));
2355 return 1;
2356 }
2357 ret = lyr_get_name_by_id(afsi.lyrics_id, &blob_name);
2358 if (ret < 0)
2359 para_printf(pb, "%s lyrics id %u: %s\n", path, afsi.lyrics_id,
2360 para_strerror(-ret));
2361 ret = img_get_name_by_id(afsi.image_id, &blob_name);
2362 if (ret < 0)
2363 para_printf(pb, "%s image id %u: %s\n", path, afsi.image_id,
2364 para_strerror(-ret));
2365 return 0;
2366 }
2367
2368 /**
2369 * Check the audio file table for inconsistencies.
2370 *
2371 * \param aca Only ->pbout is used for diagnostics.
2372 *
2373 * \return Standard. Inconsistencies are reported but not regarded as an error.
2374 *
2375 * \sa com_check().
2376 */
2377 int aft_check_callback(struct afs_callback_arg *aca)
2378 {
2379 para_printf(&aca->pbout, "checking audio file table...\n");
2380 return audio_file_loop(&aca->pbout, check_audio_file);
2381 }
2382
2383 struct aft_check_atts_data {
2384 uint64_t att_mask;
2385 struct para_buffer *pb;
2386 };
2387
2388 static int check_atts_of_audio_file(struct osl_row *row, void *data)
2389 {
2390 struct aft_check_atts_data *acad = data;
2391 int ret;
2392 struct afs_info afsi;
2393 char *path;
2394 uint64_t bad_bits;
2395
2396 ret = get_afsi_of_row(row, &afsi);
2397 if (ret < 0) {
2398 para_printf(acad->pb, "cannot get afsi\n");
2399 return ret;
2400 }
2401 bad_bits = afsi.attributes & ~acad->att_mask;
2402 if (bad_bits == 0) /* OK */
2403 return 0;
2404 ret = get_audio_file_path_of_row(row, &path);
2405 if (ret < 0) {
2406 para_printf(acad->pb, "cannot get path\n");
2407 return ret;
2408 }
2409 para_printf(acad->pb, "invalid attribute bits (%" PRIu64 "): %s\n",
2410 bad_bits, path);
2411 /* return success to keep looping */
2412 return 1;
2413 }
2414
2415 /**
2416 * Iterate over all audio files and check the attribute bit mask.
2417 *
2418 * \param att_mask The mask of all valid attributes.
2419 * \param pb Used for reporting inconsistencies.
2420 *
2421 * This reads the attribute bit mask of each audio file from the afs info
2422 * structure stored in the audio file table and verifies that all set bits are
2423 * also turned on in \a att_mask, i.e., correspond to an attribute of the
2424 * attribute table. Audio files for which this is not the case are reported via
2425 * \a pb.
2426 *
2427 * \return Standard. Inconsistencies are not regarded as errors.
2428 *
2429 * \sa \ref attribute_check_callback().
2430 */
2431 int aft_check_attributes(uint64_t att_mask, struct para_buffer *pb)
2432 {
2433 struct aft_check_atts_data acad = {.att_mask = att_mask, .pb = pb};
2434
2435 para_printf(pb, "checking attributes, mask: %" PRIx64 "\n", att_mask);
2436 return audio_file_loop(&acad, check_atts_of_audio_file);
2437 }
2438
2439 /**
2440 * Close the audio file table.
2441 *
2442 * \param flags Usual flags that are passed to osl_close_table().
2443 *
2444 * \sa osl_close_table().
2445 */
2446 static void aft_close(void)
2447 {
2448 osl_close_table(audio_file_table, OSL_MARK_CLEAN);
2449 audio_file_table = NULL;
2450 }
2451
2452 /**
2453 * Open the audio file table.
2454 *
2455 * \param dir The database directory.
2456 *
2457 * \return Standard.
2458 *
2459 * \sa osl_open_table().
2460 */
2461 static int aft_open(const char *dir)
2462 {
2463 int ret;
2464
2465 audio_file_table_desc.dir = dir;
2466 ret = osl(osl_open_table(&audio_file_table_desc, &audio_file_table));
2467 if (ret >= 0) {
2468 unsigned num;
2469 osl_get_num_rows(audio_file_table, &num);
2470 PARA_INFO_LOG("audio file table contains %u files\n", num);
2471 return ret;
2472 }
2473 PARA_NOTICE_LOG("failed to open audio file table\n");
2474 audio_file_table = NULL;
2475 if (ret == -OSL_ERRNO_TO_PARA_ERROR(E_OSL_NOENT))
2476 return 1;
2477 return ret;
2478 }
2479
2480 static int aft_create(const char *dir)
2481 {
2482 audio_file_table_desc.dir = dir;
2483 return osl(osl_create_table(&audio_file_table_desc));
2484 }
2485
2486 static int clear_attribute(struct osl_row *row, void *data)
2487 {
2488 struct rmatt_event_data *red = data;
2489 struct afs_info afsi;
2490 struct osl_object obj;
2491 int ret = get_afsi_object_of_row(row, &obj);
2492 uint64_t mask = ~(1ULL << red->bitnum);
2493
2494 if (ret < 0)
2495 return ret;
2496 ret = load_afsi(&afsi, &obj);
2497 if (ret < 0)
2498 return ret;
2499 afsi.attributes &= mask;
2500 save_afsi(&afsi, &obj);
2501 return 1;
2502 }
2503
2504 static int aft_event_handler(enum afs_events event, struct para_buffer *pb,
2505 void *data)
2506 {
2507 int ret;
2508
2509 switch (event) {
2510 case ATTRIBUTE_REMOVE: {
2511 const struct rmatt_event_data *red = data;
2512 para_printf(pb, "clearing attribute %s (bit %u) from all "
2513 "entries in the audio file table\n", red->name,
2514 red->bitnum);
2515 return audio_file_loop(data, clear_attribute);
2516 } case AFSI_CHANGE: {
2517 struct afsi_change_event_data *aced = data;
2518 uint64_t old_last_played = status_item_ls_data.afsi.last_played;
2519 if (aced->aft_row != current_aft_row)
2520 return 0;
2521 ret = get_afsi_of_row(aced->aft_row, &status_item_ls_data.afsi);
2522 if (ret < 0)
2523 return ret;
2524 status_item_ls_data.afsi.last_played = old_last_played;
2525 make_status_items();
2526 return 1;
2527 } case AFHI_CHANGE: {
2528 if (data != current_aft_row)
2529 return 0;
2530 ret = get_afhi_of_row(data, &status_item_ls_data.afhi);
2531 if (ret < 0)
2532 return ret;
2533 make_status_items();
2534 return 1;
2535 } default:
2536 return 0;
2537 }
2538 }
2539
2540 /**
2541 * Initialize the audio file table.
2542 *
2543 * \param t Pointer to the structure to be initialized.
2544 */
2545 void aft_init(struct afs_table *t)
2546 {
2547 t->open = aft_open;
2548 t->close = aft_close;
2549 t->create = aft_create;
2550 t->event_handler = aft_event_handler;
2551 }