Add 3 byte reserved space to the afs info.
[paraslash.git] / aft.c
1 /*
2 * Copyright (C) 2007 Andre Noll <maan@systemlinux.org>
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 "para.h"
10 #include "error.h"
11 #include "string.h"
12 #include <sys/mman.h>
13 #include <fnmatch.h>
14 #include "afh.h"
15 #include "afs.h"
16 #include "net.h"
17 #include "vss.h"
18
19 static struct osl_table *audio_file_table;
20
21 /** The different sorting methods of the ls command. */
22 enum ls_sorting_method {
23 /** -sp (default) */
24 LS_SORT_BY_PATH,
25 /** -ss */
26 LS_SORT_BY_SCORE,
27 /** -sl */
28 LS_SORT_BY_LAST_PLAYED,
29 /** -sn */
30 LS_SORT_BY_NUM_PLAYED,
31 /** -sf */
32 LS_SORT_BY_FREQUENCY,
33 /** -sc */
34 LS_SORT_BY_CHANNELS,
35 /** -si */
36 LS_SORT_BY_IMAGE_ID,
37 /** -sy */
38 LS_SORT_BY_LYRICS_ID,
39 /** -sb */
40 LS_SORT_BY_BITRATE,
41 /** -sd */
42 LS_SORT_BY_DURATION,
43 /** -sa */
44 LS_SORT_BY_AUDIO_FORMAT,
45 /** -sh */
46 LS_SORT_BY_HASH,
47 };
48
49 /** The different listing modes of the ls command. */
50 enum ls_listing_mode {
51 /** Default listing mode. */
52 LS_MODE_SHORT,
53 /** -l or -ll */
54 LS_MODE_LONG,
55 /** -lv */
56 LS_MODE_VERBOSE,
57 /** -lm */
58 LS_MODE_MBOX
59 };
60
61 /** The flags accepted by the ls command. */
62 enum ls_flags {
63 /** -p */
64 LS_FLAG_FULL_PATH = 1,
65 /** -a */
66 LS_FLAG_ADMISSIBLE_ONLY = 2,
67 /** -r */
68 LS_FLAG_REVERSE = 4,
69 };
70
71 /**
72 * The size of the individual output fields of the ls command.
73 *
74 * These depend on the actual content being listed. If, for instance only files
75 * with duration less than an hour are being listed, then the duration with is
76 * made smaller because then the duration is listed as mm:ss rather than
77 * hh:mm:ss.
78 */
79 struct ls_widths {
80 /** size of the score field. */
81 unsigned short score_width;
82 /** size of the image id field. */
83 unsigned short image_id_width;
84 /** size of the lyrics id field. */
85 unsigned short lyrics_id_width;
86 /** size of the bitrate field. */
87 unsigned short bitrate_width;
88 /** size of the frequency field. */
89 unsigned short frequency_width;
90 /** size of the duration field. */
91 unsigned short duration_width;
92 /** size of the num played field. */
93 unsigned short num_played_width;
94 };
95
96 /** Data passed to the different compare functions (called by qsort()). */
97 struct ls_data {
98 /** Usual audio format handler information. */
99 struct audio_format_info afhi;
100 /** Audio file selector information. */
101 struct afs_info afsi;
102 /** The full path of the audio file. */
103 char *path;
104 /** The score value (if -a was given). */
105 long score;
106 /** The sha1 hash of audio file. */
107 HASH_TYPE *hash;
108 };
109
110 struct ls_options {
111 unsigned flags;
112 enum ls_sorting_method sorting;
113 enum ls_listing_mode mode;
114 char **patterns;
115 int num_patterns;
116 struct ls_widths widths;
117 uint32_t array_size;
118 uint32_t num_matching_paths;
119 struct ls_data *data;
120 struct ls_data **data_ptr;
121 };
122
123 /**
124 * Describes the layout of the mmapped-afs info struct.
125 *
126 * \sa struct afs_info.
127 */
128 enum afsi_offsets {
129 /** Where .last_played is stored. */
130 AFSI_LAST_PLAYED_OFFSET = 0,
131 /** Storage position of the attributes bitmap. */
132 AFSI_ATTRIBUTES_OFFSET = 8,
133 /** Storage position of the .num_played field. */
134 AFSI_NUM_PLAYED_OFFSET = 16,
135 /** Storage position of the .image_id field. */
136 AFSI_IMAGE_ID_OFFSET = 20,
137 /** Storage position of the .lyrics_id field. */
138 AFSI_LYRICS_ID_OFFSET = 24,
139 /** Storage position of the .audio_format_id field. */
140 AFSI_AUDIO_FORMAT_ID_OFFSET = 28,
141 /** 3 bytes reserved space for future usage. */
142 AFSI_AUDIO_FORMAT_UNUSED_OFFSET = 29,
143 /** On-disk storage space needed. */
144 AFSI_SIZE = 32
145 };
146
147 /**
148 * Convert a struct afs_info to an osl object.
149 *
150 * \param afsi Pointer to the audio file info to be converted.
151 * \param obj Result pointer.
152 *
153 * \sa load_afsi().
154 */
155 void save_afsi(struct afs_info *afsi, struct osl_object *obj)
156 {
157 char *buf = obj->data;
158
159 write_u64(buf + AFSI_LAST_PLAYED_OFFSET, afsi->last_played);
160 write_u64(buf + AFSI_ATTRIBUTES_OFFSET, afsi->attributes);
161 write_u32(buf + AFSI_NUM_PLAYED_OFFSET, afsi->num_played);
162 write_u32(buf + AFSI_IMAGE_ID_OFFSET, afsi->image_id);
163 write_u32(buf + AFSI_LYRICS_ID_OFFSET, afsi->lyrics_id);
164 write_u8(buf + AFSI_AUDIO_FORMAT_ID_OFFSET,
165 afsi->audio_format_id);
166 memset(buf + AFSI_AUDIO_FORMAT_UNUSED_OFFSET, 0, 3);
167 }
168
169 /**
170 * Get the audio file selector info struct stored in an osl object.
171 *
172 * \param afsi Points to the audio_file info structure to be filled in.
173 * \param obj The osl object holding the data.
174 *
175 * \return Positive on success, negative on errors. Possible errors: \p E_BAD_AFS.
176 *
177 * \sa save_afsi().
178 */
179 int load_afsi(struct afs_info *afsi, struct osl_object *obj)
180 {
181 char *buf = obj->data;
182 if (obj->size < AFSI_SIZE)
183 return -E_BAD_AFSI;
184 afsi->last_played = read_u64(buf + AFSI_LAST_PLAYED_OFFSET);
185 afsi->attributes = read_u64(buf + AFSI_ATTRIBUTES_OFFSET);
186 afsi->num_played = read_u32(buf + AFSI_NUM_PLAYED_OFFSET);
187 afsi->image_id = read_u32(buf + AFSI_IMAGE_ID_OFFSET);
188 afsi->lyrics_id = read_u32(buf + AFSI_LYRICS_ID_OFFSET);
189 afsi->audio_format_id = read_u8(buf +
190 AFSI_AUDIO_FORMAT_ID_OFFSET);
191 return 1;
192 }
193
194 /** The columns of the audio file table. */
195 enum audio_file_table_columns {
196 /** The hash on the content of the audio file. */
197 AFTCOL_HASH,
198 /** The full path in the filesystem. */
199 AFTCOL_PATH,
200 /** The audio file selector info. */
201 AFTCOL_AFSI,
202 /** The audio format handler info. */
203 AFTCOL_AFHI,
204 /** The chunk table info and the chunk table of the audio file. */
205 AFTCOL_CHUNKS,
206 /** The number of columns of this table. */
207 NUM_AFT_COLUMNS
208 };
209
210 static struct osl_column_description aft_cols[] = {
211 [AFTCOL_HASH] = {
212 .storage_type = OSL_MAPPED_STORAGE,
213 .storage_flags = OSL_RBTREE | OSL_FIXED_SIZE | OSL_UNIQUE,
214 .name = "hash",
215 .compare_function = osl_hash_compare,
216 .data_size = HASH_SIZE
217 },
218 [AFTCOL_PATH] = {
219 .storage_type = OSL_MAPPED_STORAGE,
220 .storage_flags = OSL_RBTREE | OSL_UNIQUE,
221 .name = "path",
222 .compare_function = string_compare,
223 },
224 [AFTCOL_AFSI] = {
225 .storage_type = OSL_MAPPED_STORAGE,
226 .storage_flags = OSL_FIXED_SIZE,
227 .name = "afs_info",
228 .data_size = AFSI_SIZE
229 },
230 [AFTCOL_AFHI] = {
231 .storage_type = OSL_MAPPED_STORAGE,
232 .name = "afh_info",
233 },
234 [AFTCOL_CHUNKS] = {
235 .storage_type = OSL_DISK_STORAGE,
236 .name = "chunks",
237 }
238 };
239
240 static struct osl_table_description audio_file_table_desc = {
241 .name = "audio_files",
242 .num_columns = NUM_AFT_COLUMNS,
243 .flags = OSL_LARGE_TABLE,
244 .column_descriptions = aft_cols
245 };
246
247 /* We don't want * dot or dot-dot anywhere. */
248 static int verify_dotfile(const char *rest)
249 {
250 /*
251 * The first character was '.', but that has already been discarded, we
252 * now test the rest.
253 */
254 switch (*rest) {
255 case '\0': case '/': /* /foo/. and /foo/./bar are not ok */
256 return -1;
257 case '.': /* path start with /foo/.. */
258 if (rest[1] == '\0' || rest[1] == '/')
259 return -1; /* /foo/.. or /foo/../bar are not ok */
260 /* /foo/..bar is ok */
261 }
262 return 1;
263 }
264
265 /*
266 * We fundamentally don't like some paths: We don't want double slashes or
267 * slashes at the end that can make pathnames ambiguous.
268 */
269 static int verify_path(const char *orig_path, char **resolved_path)
270 {
271 char c;
272 size_t len;
273 char *path;
274
275 if (*orig_path != '/') /* we only accept absolute paths */
276 return -E_BAD_PATH;
277 len = strlen(orig_path);
278 *resolved_path = para_strdup(orig_path);
279 path = *resolved_path;
280 while (len > 1 && path[--len] == '/')
281 path[len] = '\0'; /* remove slash at the end */
282 c = *path++;
283 while (c) {
284 if (c == '/') {
285 c = *path++;
286 switch (c) {
287 case '/': /* double slash */
288 goto bad_path;
289 case '.':
290 if (verify_dotfile(path) < 0)
291 goto bad_path;
292 default:
293 continue;
294 }
295 }
296 c = *path++;
297 }
298 return 1;
299 bad_path:
300 free(*resolved_path);
301 return -E_BAD_PATH;
302 }
303
304 /** The on-disk layout of a afhi struct. */
305 enum afhi_offsets {
306 /** Where the number of seconds is stored. */
307 AFHI_SECONDS_TOTAL_OFFSET = 0,
308 /** Position of the bitrate. */
309 AFHI_BITRATE_OFFSET = 4,
310 /** Position of the frequency. */
311 AFHI_FREQUENCY_OFFSET = 8,
312 /** Number of channels is stored here. */
313 AFHI_CHANNELS_OFFSET = 12,
314 /** The tag info position. */
315 AFHI_INFO_STRING_OFFSET = 13,
316 /** Minimal on-disk size of a valid afhi struct. */
317 MIN_AFHI_SIZE = 14
318 };
319
320 static unsigned sizeof_afhi_buf(const struct audio_format_info *afhi)
321 {
322 if (!afhi)
323 return 0;
324 return strlen(afhi->info_string) + MIN_AFHI_SIZE;
325 }
326
327 static void save_afhi(struct audio_format_info *afhi, char *buf)
328 {
329 if (!afhi)
330 return;
331 write_u32(buf + AFHI_SECONDS_TOTAL_OFFSET,
332 afhi->seconds_total);
333 write_u32(buf + AFHI_BITRATE_OFFSET, afhi->bitrate);
334 write_u32(buf + AFHI_FREQUENCY_OFFSET, afhi->frequency);
335 write_u8(buf + AFHI_CHANNELS_OFFSET, afhi->channels);
336 strcpy(buf + AFHI_INFO_STRING_OFFSET, afhi->info_string); /* OK */
337 PARA_DEBUG_LOG("last byte written: %p\n", buf + AFHI_INFO_STRING_OFFSET + strlen(afhi->info_string));
338 }
339
340 static void load_afhi(const char *buf, struct audio_format_info *afhi)
341 {
342 afhi->seconds_total = read_u32(buf + AFHI_SECONDS_TOTAL_OFFSET);
343 afhi->bitrate = read_u32(buf + AFHI_BITRATE_OFFSET);
344 afhi->frequency = read_u32(buf + AFHI_FREQUENCY_OFFSET);
345 afhi->channels = read_u8(buf + AFHI_CHANNELS_OFFSET);
346 strcpy(afhi->info_string, buf + AFHI_INFO_STRING_OFFSET);
347 }
348
349 static unsigned sizeof_chunk_info_buf(struct audio_format_info *afhi)
350 {
351 if (!afhi)
352 return 0;
353 return 4 * afhi->chunks_total + 20;
354
355 }
356
357 /** The offsets of the data contained in the AFTCOL_CHUNKS column. */
358 enum chunk_info_offsets{
359 /** The total number of chunks (4 bytes). */
360 CHUNKS_TOTAL_OFFSET = 0,
361 /** The length of the audio file header (4 bytes). */
362 HEADER_LEN_OFFSET = 4,
363 /** The start of the audio file header (4 bytes). */
364 HEADER_OFFSET_OFFSET = 8,
365 /** The seconds part of the chunk time (4 bytes). */
366 CHUNK_TV_TV_SEC_OFFSET = 12,
367 /** The microseconds part of the chunk time (4 bytes). */
368 CHUNK_TV_TV_USEC = 16,
369 /** Chunk table entries start here. */
370 CHUNK_TABLE_OFFSET = 20,
371 };
372
373 /* TODO: audio format handlers could just produce this */
374 static void save_chunk_info(struct audio_format_info *afhi, char *buf)
375 {
376 int i;
377
378 if (!afhi)
379 return;
380 write_u32(buf + CHUNKS_TOTAL_OFFSET, afhi->chunks_total);
381 write_u32(buf + HEADER_LEN_OFFSET, afhi->header_len);
382 write_u32(buf + HEADER_OFFSET_OFFSET, afhi->header_offset);
383 write_u32(buf + CHUNK_TV_TV_SEC_OFFSET, afhi->chunk_tv.tv_sec);
384 write_u32(buf + CHUNK_TV_TV_USEC, afhi->chunk_tv.tv_usec);
385 for (i = 0; i < afhi->chunks_total; i++)
386 write_u32(buf + CHUNK_TABLE_OFFSET + 4 * i, afhi->chunk_table[i]);
387 }
388
389 static int load_chunk_info(struct osl_object *obj, struct audio_format_info *afhi)
390 {
391 char *buf = obj->data;
392 int i;
393
394 if (obj->size < CHUNK_TABLE_OFFSET)
395 return -E_BAD_DATA_SIZE;
396
397 afhi->chunks_total = read_u32(buf + CHUNKS_TOTAL_OFFSET);
398 afhi->header_len = read_u32(buf + HEADER_LEN_OFFSET);
399 afhi->header_offset = read_u32(buf + HEADER_OFFSET_OFFSET);
400 afhi->chunk_tv.tv_sec = read_u32(buf + CHUNK_TV_TV_SEC_OFFSET);
401 afhi->chunk_tv.tv_usec = read_u32(buf + CHUNK_TV_TV_USEC);
402
403 if (afhi->chunks_total * 4 + CHUNK_TABLE_OFFSET > obj->size)
404 return -E_BAD_DATA_SIZE;
405 afhi->chunk_table = para_malloc(afhi->chunks_total * sizeof(size_t));
406 for (i = 0; i < afhi->chunks_total; i++)
407 afhi->chunk_table[i] = read_u32(buf + CHUNK_TABLE_OFFSET + 4 * i);
408 return 1;
409 }
410
411 /**
412 * Get the row of the audio file table corresponding to the given path.
413 *
414 * \param path The full path of the audio file.
415 * \param row Result pointer.
416 *
417 * \return The return value of the underlying call to osl_get_row().
418 */
419 int aft_get_row_of_path(const char *path, struct osl_row **row)
420 {
421 struct osl_object obj = {.data = (char *)path, .size = strlen(path) + 1};
422
423 return osl_get_row(audio_file_table, AFTCOL_PATH, &obj, row);
424 }
425
426 /**
427 * Get the row of the audio file table corresponding to the given hash value.
428 *
429 * \param hash The hash value of the desired audio file.
430 * \param row resul pointer.
431 *
432 * \return The return value of the underlying call to osl_get_row().
433 */
434 int aft_get_row_of_hash(HASH_TYPE *hash, struct osl_row **row)
435 {
436 const struct osl_object obj = {.data = hash, .size = HASH_SIZE};
437 return osl_get_row(audio_file_table, AFTCOL_HASH, &obj, row);
438 }
439
440 /**
441 * Get the osl object holding the audio file selector info of a row.
442 *
443 * \param row Pointer to a row in the audio file table.
444 * \param obj Result pointer.
445 *
446 * \return The return value of the underlying call to osl_get_object().
447 */
448 int get_afsi_object_of_row(const struct osl_row *row, struct osl_object *obj)
449 {
450 return osl_get_object(audio_file_table, row, AFTCOL_AFSI, obj);
451 }
452
453 /**
454 * Get the osl object holding the audio file selector info, given a path.
455 *
456 *
457 * \param path The full path of the audio file.
458 * \param obj Result pointer.
459 *
460 * \return Positive on success, negative on errors.
461 */
462 int get_afsi_object_of_path(const char *path, struct osl_object *obj)
463 {
464 struct osl_row *row;
465 int ret = aft_get_row_of_path(path, &row);
466 if (ret < 0)
467 return ret;
468 return get_afsi_object_of_row(row, obj);
469 }
470
471 /**
472 * Get the audio file selector info, given a row of the audio file table.
473 *
474 * \param row Pointer to a row in the audio file table.
475 * \param afsi Result pointer.
476 *
477 * \return Positive on success, negative on errors.
478 */
479 int get_afsi_of_row(const struct osl_row *row, struct afs_info *afsi)
480 {
481 struct osl_object obj;
482 int ret = get_afsi_object_of_row(row, &obj);
483 if (ret < 0)
484 return ret;
485 return load_afsi(afsi, &obj);
486 }
487
488 /**
489 * Get the audio file selector info, given the path of an audio table.
490 *
491 * \param path The full path of the audio file.
492 * \param afsi Result pointer.
493 *
494 * \return Positive on success, negative on errors.
495 */
496 int get_afsi_of_path(const char *path, struct afs_info *afsi)
497 {
498 struct osl_object obj;
499 int ret = get_afsi_object_of_path(path, &obj);
500 if (ret < 0)
501 return ret;
502 return load_afsi(afsi, &obj);
503 }
504
505 /**
506 * Get the path of an audio file, given a row of the audio file table.
507 *
508 * \param row Pointer to a row in the audio file table.
509 * \param path Result pointer.
510 *
511 * \return Positive on success, negative on errors.
512 */
513 int get_audio_file_path_of_row(const struct osl_row *row, char **path)
514 {
515 struct osl_object path_obj;
516 int ret = osl_get_object(audio_file_table, row, AFTCOL_PATH,
517 &path_obj);
518 if (ret < 0)
519 return ret;
520 *path = path_obj.data;
521 return 1;
522 }
523
524 /**
525 * Get the object containing the hash value of an audio file, given a row.
526 *
527 * \param row Pointer to a row of the audio file table.
528 * \param obj Result pointer.
529 *
530 * \return The return value of the underlying call to osl_get_object().
531 *
532 * \sa get_hash_of_row().
533 */
534 static int get_hash_object_of_aft_row(const struct osl_row *row, struct osl_object *obj)
535 {
536 return osl_get_object(audio_file_table, row, AFTCOL_HASH, obj);
537 }
538
539 /**
540 * Get the hash value of an audio file, given a row of the audio file table.
541 *
542 * \param row Pointer to a row of the audio file table.
543 * \param hash Result pointer.
544 *
545 * \a hash points to mapped data and must not be freed by the caller.
546 *
547 * \return The return value of the underlying call to
548 * get_hash_object_of_aft_row().
549 */
550 static int get_hash_of_row(const struct osl_row *row, HASH_TYPE **hash)
551 {
552 struct osl_object obj;
553 int ret = get_hash_object_of_aft_row(row, &obj);
554
555 if (ret < 0)
556 return ret;
557 *hash = obj.data;
558 return 1;
559 }
560
561 /**
562 * Get the audio format handler info, given a row of the audio file table.
563 *
564 * \param row Pointer to a row of the audio file table.
565 * \param afhi Result pointer.
566 *
567 * \return The return value of the underlying call to osl_get_object().
568 *
569 * \sa get_chunk_table_of_row().
570 */
571 int get_afhi_of_row(const struct osl_row *row, struct audio_format_info *afhi)
572 {
573 struct osl_object obj;
574 int ret = osl_get_object(audio_file_table, row, AFTCOL_AFHI,
575 &obj);
576 if (ret < 0)
577 return ret;
578 load_afhi(obj.data, afhi);
579 return 1;
580 }
581
582 /**
583 * Get the chunk table of an audio file, given a row of the audio file table.
584 *
585 * \param row Pointer to a row of the audio file table.
586 * \param afhi Result pointer.
587 *
588 * \return The return value of the underlying call to osl_open_disk_object().
589 *
590 * \sa get_afhi_of_row().
591 */
592 static int get_chunk_table_of_row(const struct osl_row *row, struct audio_format_info *afhi)
593 {
594 struct osl_object obj;
595 int ret = osl_open_disk_object(audio_file_table, row, AFTCOL_CHUNKS,
596 &obj);
597 if (ret < 0)
598 return ret;
599 ret = load_chunk_info(&obj, afhi);
600 osl_close_disk_object(&obj);
601 return ret;
602 }
603
604 /**
605 * Mmap the given audio file and update statistics.
606 *
607 * \param aft_row Determines the audio file to be opened and updated.
608 * \param afd Result pointer.
609 *
610 * On success, the numplayed field of the audio file selector info is increased
611 * and the lastplayed time is set to the current time. Finally, the score of
612 * the audio file is updated.
613 *
614 * \return Positive on success, negative on errors.
615 */
616 int open_and_update_audio_file(struct osl_row *aft_row, struct audio_file_data *afd)
617 {
618 HASH_TYPE *aft_hash, file_hash[HASH_SIZE];
619 struct osl_object afsi_obj;
620 struct afs_info new_afsi;
621 int ret = get_hash_of_row(aft_row, &aft_hash);
622
623 if (ret < 0)
624 return ret;
625 ret = get_audio_file_path_of_row(aft_row, &afd->path);
626 if (ret < 0)
627 return ret;
628 ret = get_afsi_object_of_row(aft_row, &afsi_obj);
629 if (ret < 0)
630 return ret;
631 ret = load_afsi(&afd->afsi, &afsi_obj);
632 if (ret < 0)
633 return ret;
634 ret = get_afhi_of_row(aft_row, &afd->afhi);
635 if (ret < 0)
636 return ret;
637 ret = get_chunk_table_of_row(aft_row, &afd->afhi);
638 if (ret < 0)
639 return ret;
640 ret = mmap_full_file(afd->path, O_RDONLY, &afd->map);
641 if (ret < 0)
642 goto err;
643 hash_function(afd->map.data, afd->map.size, file_hash);
644 ret = -E_HASH_MISMATCH;
645 if (hash_compare(file_hash, aft_hash))
646 goto err;
647 new_afsi = afd->afsi;
648 new_afsi.num_played++;
649 new_afsi.last_played = time(NULL);
650 save_afsi(&new_afsi, &afsi_obj); /* in-place update */
651 if (afd->current_play_mode == PLAY_MODE_PLAYLIST)
652 ret = playlist_update_audio_file(aft_row);
653 else {
654 struct afsi_change_event_data aced = {.aft_row = aft_row,
655 .old_afsi = &afd->afsi};
656 afs_event(AFSI_CHANGE, NULL, &aced);
657 }
658 return ret;
659 err:
660 free(afd->afhi.chunk_table);
661 return ret;
662 }
663
664 static int get_local_time(uint64_t *seconds, char *buf, size_t size,
665 time_t current_time, enum ls_listing_mode lm)
666 {
667 struct tm t;
668
669 if (!localtime_r((time_t *)seconds, &t))
670 return -E_LOCALTIME;
671 if (lm == LS_MODE_MBOX) {
672 if (!strftime(buf, size, "%c", &t))
673 return -E_STRFTIME;
674 return 1;
675 }
676 if (*seconds + 6 * 30 * 24 * 3600 > current_time) {
677 if (!strftime(buf, size, "%b %e %k:%M", &t))
678 return -E_STRFTIME;
679 return 1;
680 }
681 if (!strftime(buf, size, "%b %e %Y", &t))
682 return -E_STRFTIME;
683 return 1;
684 }
685
686 /** Compute the number of (decimal) digits of a number. */
687 #define GET_NUM_DIGITS(x, num) { \
688 typeof((x)) _tmp = PARA_ABS(x); \
689 *num = 1; \
690 if ((x)) \
691 while ((_tmp) > 9) { \
692 (_tmp) /= 10; \
693 (*num)++; \
694 } \
695 }
696
697 static short unsigned get_duration_width(int seconds)
698 {
699 short unsigned width;
700 unsigned hours = seconds / 3600, mins = (seconds % 3600) / 60;
701
702 if (!hours) /* less than one hour => m:ss or mm:ss => 4 or 5 digits */
703 return 4 + (mins > 9);
704 /* more than one hour => h:mm:ss, hh:mm:ss, hhh:mm:ss, ... */
705 GET_NUM_DIGITS(hours, &width);
706 return width + 6;
707 }
708
709 static void get_duration_buf(int seconds, char *buf, short unsigned max_width)
710 {
711 unsigned hours = seconds / 3600, mins = (seconds % 3600) / 60;
712
713 if (!hours) /* m:ss or mm:ss */
714 sprintf(buf, "%*u:%02u", max_width - 3, mins, seconds % 60);
715 else /* more than one hour => h:mm:ss, hh:mm:ss, hhh:mm:ss, ... */
716 sprintf(buf, "%*u:%02u:%02u", max_width - 6, hours, mins,
717 seconds % 60);
718 }
719
720 static char *make_attribute_line(const char *att_bitmap, struct afs_info *afsi)
721 {
722 char *att_text, *att_line;
723
724 get_attribute_text(&afsi->attributes, " ", &att_text);
725 if (!att_text)
726 return para_strdup(att_bitmap);
727 att_line = make_message("%s (%s)", att_bitmap, att_text);
728 free(att_text);
729 return att_line;
730 }
731
732 static char *make_lyrics_line(struct afs_info *afsi)
733 {
734 char *lyrics_name;
735
736 lyr_get_name_by_id(afsi->lyrics_id, &lyrics_name);
737 if (!lyrics_name)
738 return make_message("%u", afsi->lyrics_id);
739 return make_message("%u (%s)", afsi->lyrics_id, lyrics_name);
740 }
741
742 static char *make_image_line(struct afs_info *afsi)
743 {
744 char *image_name;
745 img_get_name_by_id(afsi->image_id, &image_name);
746 if (!image_name)
747 return make_message("%u", afsi->image_id);
748 return make_message("%u (%s)", afsi->image_id, image_name);
749 }
750
751 static int print_list_item(struct ls_data *d, struct ls_options *opts,
752 struct para_buffer *b, time_t current_time)
753 {
754 int ret;
755 char att_buf[65];
756 char last_played_time[30];
757 char duration_buf[30]; /* nobody has an audio file long enough to overflow this */
758 char score_buf[30] = "";
759 struct afs_info *afsi = &d->afsi;
760 struct audio_format_info *afhi = &d->afhi;
761 struct ls_widths *w = &opts->widths;
762 int have_score = opts->flags & LS_FLAG_ADMISSIBLE_ONLY;
763 char asc_hash[2 * HASH_SIZE + 1];
764 char *att_line, *lyrics_line, *image_line;
765
766 if (opts->mode == LS_MODE_SHORT) {
767 para_printf(b, "%s\n", d->path);
768 return 1;
769 }
770 get_attribute_bitmap(&afsi->attributes, att_buf);
771 ret = get_local_time(&afsi->last_played, last_played_time,
772 sizeof(last_played_time), current_time, opts->mode);
773 if (ret < 0)
774 return ret;
775 get_duration_buf(afhi->seconds_total, duration_buf, w->duration_width);
776 if (have_score) {
777 if (opts->mode == LS_MODE_LONG)
778 sprintf(score_buf, "%*li ", w->score_width, d->score);
779 else
780 sprintf(score_buf, "%li ", d->score);
781 }
782
783 if (opts->mode == LS_MODE_LONG) {
784 para_printf(b,
785 "%s" /* score */
786 "%s " /* attributes */
787 "%*d " /* image_id */
788 "%*d " /* lyrics_id */
789 "%*d " /* bitrate */
790 "%s " /* audio format */
791 "%*d " /* frequency */
792 "%d " /* channels */
793 "%s " /* duration */
794 "%*d " /* num_played */
795 "%s " /* last_played */
796 "%s\n", /* path */
797 score_buf,
798 att_buf,
799 w->image_id_width, afsi->image_id,
800 w->lyrics_id_width, afsi->lyrics_id,
801 w->bitrate_width, afhi->bitrate,
802 audio_format_name(afsi->audio_format_id),
803 w->frequency_width, afhi->frequency,
804 afhi->channels,
805 duration_buf,
806 w->num_played_width, afsi->num_played,
807 last_played_time,
808 d->path
809 );
810 return 1;
811 }
812 hash_to_asc(d->hash, asc_hash);
813 att_line = make_attribute_line(att_buf, afsi);
814 lyrics_line = make_lyrics_line(afsi);
815 image_line = make_image_line(afsi);
816 if (opts->mode == LS_MODE_VERBOSE) {
817
818 para_printf(b,
819 "%s: %s\n" /* path */
820 "%s%s%s" /* score */
821 "attributes: %s\n"
822 "hash: %s\n"
823 "image_id: %s\n"
824 "lyrics_id: %s\n"
825 "bitrate: %dkbit/s\n"
826 "format: %s\n"
827 "frequency: %dHz\n"
828 "channels: %d\n"
829 "duration: %s\n"
830 "num_played: %d\n"
831 "last_played: %s\n"
832 "tag info: %s\n",
833 (opts->flags & LS_FLAG_FULL_PATH)?
834 "path" : "file", d->path,
835 have_score? "score: " : "", score_buf,
836 have_score? "\n" : "",
837 att_line,
838 asc_hash,
839 image_line,
840 lyrics_line,
841 afhi->bitrate,
842 audio_format_name(afsi->audio_format_id),
843 afhi->frequency,
844 afhi->channels,
845 duration_buf,
846 afsi->num_played,
847 last_played_time,
848 afhi->info_string
849 );
850 } else { /* mbox mode */
851 struct osl_object lyrics_def;
852 lyr_get_def_by_id(afsi->lyrics_id, &lyrics_def);
853 para_printf(b,
854 "From foo@localhost %s\n"
855 "Received: from\nTo: bar\nFrom: a\n"
856 "Subject: %s\n\n" /* path */
857 "%s%s%s" /* score */
858 "attributes: %s\n"
859 "hash: %s\n"
860 "image_id: %s\n"
861 "lyrics_id: %s\n"
862 "bitrate: %dkbit/s\n"
863 "format: %s\n"
864 "frequency: %dHz\n"
865 "channels: %d\n"
866 "duration: %s\n"
867 "num_played: %d\n"
868 "tag info: %s\n"
869 "%s%s\n",
870 last_played_time,
871 d->path,
872 have_score? "score: " : "", score_buf,
873 have_score? "\n" : "",
874 att_line,
875 asc_hash,
876 image_line,
877 lyrics_line,
878 afhi->bitrate,
879 audio_format_name(afsi->audio_format_id),
880 afhi->frequency,
881 afhi->channels,
882 duration_buf,
883 afsi->num_played,
884 afhi->info_string,
885 lyrics_def.data? "Lyrics:\n~~~~~~~\n" : "",
886 lyrics_def.data? (char *)lyrics_def.data : ""
887 );
888 if (lyrics_def.data)
889 osl_close_disk_object(lyrics_def.data);
890 }
891 free(att_line);
892 free(lyrics_line);
893 free(image_line);
894 return 1;
895 }
896
897 static int ls_audio_format_compare(const void *a, const void *b)
898 {
899 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
900 return NUM_COMPARE(d1->afsi.audio_format_id, d2->afsi.audio_format_id);
901 }
902
903 static int ls_duration_compare(const void *a, const void *b)
904 {
905 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
906 return NUM_COMPARE(d1->afhi.seconds_total, d2->afhi.seconds_total);
907 }
908
909 static int ls_bitrate_compare(const void *a, const void *b)
910 {
911 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
912 return NUM_COMPARE(d1->afhi.bitrate, d2->afhi.bitrate);
913 }
914
915 static int ls_lyrics_id_compare(const void *a, const void *b)
916 {
917 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
918 return NUM_COMPARE(d1->afsi.lyrics_id, d2->afsi.lyrics_id);
919 }
920
921 static int ls_image_id_compare(const void *a, const void *b)
922 {
923 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
924 return NUM_COMPARE(d1->afsi.image_id, d2->afsi.image_id);
925 }
926
927 static int ls_channels_compare(const void *a, const void *b)
928 {
929 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
930 return NUM_COMPARE(d1->afhi.channels, d2->afhi.channels);
931 }
932
933 static int ls_frequency_compare(const void *a, const void *b)
934 {
935 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
936 return NUM_COMPARE(d1->afhi.frequency, d2->afhi.frequency);
937 }
938
939 static int ls_num_played_compare(const void *a, const void *b)
940 {
941 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
942 return NUM_COMPARE(d1->afsi.num_played, d2->afsi.num_played);
943 }
944
945 static int ls_last_played_compare(const void *a, const void *b)
946 {
947 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
948 return NUM_COMPARE(d1->afsi.last_played, d2->afsi.last_played);
949 }
950
951 static int ls_score_compare(const void *a, const void *b)
952 {
953 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
954 return NUM_COMPARE(d1->score, d2->score);
955 }
956
957 static int ls_path_compare(const void *a, const void *b)
958 {
959 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
960 return strcmp(d1->path, d2->path);
961 }
962
963 static int sort_matching_paths(struct ls_options *options)
964 {
965 size_t nmemb = options->num_matching_paths;
966 size_t size = sizeof(*options->data_ptr);
967 int (*compar)(const void *, const void *);
968 int i;
969
970 options->data_ptr = para_malloc(nmemb * sizeof(*options->data_ptr));
971 for (i = 0; i < nmemb; i++)
972 options->data_ptr[i] = options->data + i;
973
974 /* In these cases the array is already sorted */
975 if (options->sorting == LS_SORT_BY_PATH
976 && !(options->flags & LS_FLAG_ADMISSIBLE_ONLY)
977 && (options->flags & LS_FLAG_FULL_PATH))
978 return 1;
979 if (options->sorting == LS_SORT_BY_SCORE &&
980 options->flags & LS_FLAG_ADMISSIBLE_ONLY)
981 return 1;
982
983 switch (options->sorting) {
984 case LS_SORT_BY_PATH:
985 compar = ls_path_compare; break;
986 case LS_SORT_BY_SCORE:
987 compar = ls_score_compare; break;
988 case LS_SORT_BY_LAST_PLAYED:
989 compar = ls_last_played_compare; break;
990 case LS_SORT_BY_NUM_PLAYED:
991 compar = ls_num_played_compare; break;
992 case LS_SORT_BY_FREQUENCY:
993 compar = ls_frequency_compare; break;
994 case LS_SORT_BY_CHANNELS:
995 compar = ls_channels_compare; break;
996 case LS_SORT_BY_IMAGE_ID:
997 compar = ls_image_id_compare; break;
998 case LS_SORT_BY_LYRICS_ID:
999 compar = ls_lyrics_id_compare; break;
1000 case LS_SORT_BY_BITRATE:
1001 compar = ls_bitrate_compare; break;
1002 case LS_SORT_BY_DURATION:
1003 compar = ls_duration_compare; break;
1004 case LS_SORT_BY_AUDIO_FORMAT:
1005 compar = ls_audio_format_compare; break;
1006 default:
1007 return -E_BAD_SORT;
1008 }
1009 qsort(options->data_ptr, nmemb, size, compar);
1010 return 1;
1011 }
1012
1013 /* row is either an aft_row or a row of the score table */
1014 /* TODO: Only compute widths if we need them */
1015 static int prepare_ls_row(struct osl_row *row, void *ls_opts)
1016 {
1017 int ret, i;
1018 struct ls_options *options = ls_opts;
1019 struct ls_data *d;
1020 struct ls_widths *w;
1021 unsigned short num_digits;
1022 unsigned tmp;
1023 struct osl_row *aft_row;
1024 long score;
1025 char *path;
1026
1027 if (options->flags & LS_FLAG_ADMISSIBLE_ONLY) {
1028 ret = get_score_and_aft_row(row, &score, &aft_row);
1029 if (ret < 0)
1030 return ret;
1031 } else
1032 aft_row = row;
1033 ret = get_audio_file_path_of_row(aft_row, &path);
1034 if (ret < 0)
1035 return ret;
1036 if (!(options->flags & LS_FLAG_FULL_PATH)) {
1037 char *p = strrchr(path, '/');
1038 if (p)
1039 path = p + 1;
1040 }
1041 if (options->num_patterns) {
1042 for (i = 0; i < options->num_patterns; i++) {
1043 ret = fnmatch(options->patterns[i], path, 0);
1044 if (!ret)
1045 break;
1046 if (ret == FNM_NOMATCH)
1047 continue;
1048 return -E_FNMATCH;
1049 }
1050 if (i >= options->num_patterns) /* no match */
1051 return 1;
1052 }
1053 tmp = options->num_matching_paths++;
1054 if (options->num_matching_paths > options->array_size) {
1055 options->array_size++;
1056 options->array_size *= 2;
1057 options->data = para_realloc(options->data, options->array_size
1058 * sizeof(*options->data));
1059 }
1060 d = options->data + tmp;
1061 ret = get_afsi_of_row(aft_row, &d->afsi);
1062 if (ret < 0)
1063 return ret;
1064 ret = get_afhi_of_row(aft_row, &d->afhi);
1065 if (ret < 0)
1066 return ret;
1067 d->path = path;
1068 ret = get_hash_of_row(aft_row, &d->hash);
1069 if (ret < 0)
1070 return ret;
1071 w = &options->widths;
1072 GET_NUM_DIGITS(d->afsi.image_id, &num_digits);
1073 w->image_id_width = PARA_MAX(w->image_id_width, num_digits);
1074 GET_NUM_DIGITS(d->afsi.lyrics_id, &num_digits);
1075 w->lyrics_id_width = PARA_MAX(w->lyrics_id_width, num_digits);
1076 GET_NUM_DIGITS(d->afhi.bitrate, &num_digits);
1077 w->bitrate_width = PARA_MAX(w->bitrate_width, num_digits);
1078 GET_NUM_DIGITS(d->afhi.frequency, &num_digits);
1079 w->frequency_width = PARA_MAX(w->frequency_width, num_digits);
1080 GET_NUM_DIGITS(d->afsi.num_played, &num_digits);
1081 w->num_played_width = PARA_MAX(w->num_played_width, num_digits);
1082 /* get the number of chars to print this amount of time */
1083 tmp = get_duration_width(d->afhi.seconds_total);
1084 w->duration_width = PARA_MAX(w->duration_width, tmp);
1085 if (options->flags & LS_FLAG_ADMISSIBLE_ONLY) {
1086 GET_NUM_DIGITS(score, &num_digits);
1087 num_digits++; /* add one for the sign (space or "-") */
1088 w->score_width = PARA_MAX(w->score_width, num_digits);
1089 d->score = score;
1090 }
1091 return 1;
1092 }
1093
1094 static int com_ls_callback(const struct osl_object *query,
1095 struct osl_object *ls_output)
1096 {
1097 struct ls_options *opts = query->data;
1098 char *p, *pattern_start = (char *)query->data + sizeof(*opts);
1099 struct para_buffer b = {.buf = NULL, .size = 0};
1100 int i = 0, ret;
1101 time_t current_time;
1102
1103
1104 if (opts->num_patterns) {
1105 opts->patterns = para_malloc(opts->num_patterns * sizeof(char *));
1106 for (i = 0, p = pattern_start; i < opts->num_patterns; i++) {
1107 opts->patterns[i] = p;
1108 p += strlen(p) + 1;
1109 }
1110 } else
1111 opts->patterns = NULL;
1112 if (opts->flags & LS_FLAG_ADMISSIBLE_ONLY)
1113 ret = admissible_file_loop(opts, prepare_ls_row);
1114 else
1115 ret = osl_rbtree_loop(audio_file_table, AFTCOL_PATH, opts,
1116 prepare_ls_row);
1117 if (ret < 0)
1118 goto out;
1119 ret = opts->num_patterns? -E_NO_MATCH : 0;
1120 if (!opts->num_matching_paths)
1121 goto out;
1122 ret = sort_matching_paths(opts);
1123 if (ret < 0)
1124 goto out;
1125 time(&current_time);
1126 if (opts->flags & LS_FLAG_REVERSE)
1127 for (i = opts->num_matching_paths - 1; i >= 0; i--) {
1128 ret = print_list_item(opts->data_ptr[i], opts, &b, current_time);
1129 if (ret < 0)
1130 break;
1131 }
1132 else
1133 for (i = 0; i < opts->num_matching_paths; i++) {
1134 ret = print_list_item(opts->data_ptr[i], opts, &b, current_time);
1135 if (ret < 0)
1136 break;
1137 }
1138 ret = 1;
1139 out:
1140 ls_output->data = b.buf;
1141 ls_output->size = b.size;
1142 free(opts->data);
1143 free(opts->data_ptr);
1144 free(opts->patterns);
1145 return ret;
1146 }
1147
1148 /*
1149 * TODO: flags -h (sort by hash) -lm (list in mbox format)
1150 *
1151 * long list: list hash, attributes as (xx--x-x-), file size, lastplayed
1152 * full list: list everything, including afsi, afhi, atts as clear text
1153 *
1154 * */
1155 int com_afs_ls(int fd, int argc, char * const * const argv)
1156 {
1157 int i, ret;
1158 unsigned flags = 0;
1159 enum ls_sorting_method sort = LS_SORT_BY_PATH;
1160 enum ls_listing_mode mode = LS_MODE_SHORT;
1161 struct ls_options opts = {.patterns = NULL};
1162 struct osl_object query = {.data = &opts, .size = sizeof(opts)},
1163 ls_output;
1164
1165 for (i = 1; i < argc; i++) {
1166 const char *arg = argv[i];
1167 if (arg[0] != '-')
1168 break;
1169 if (!strcmp(arg, "--")) {
1170 i++;
1171 break;
1172 }
1173 if (!strncmp(arg, "-l", 2)) {
1174 if (!*(arg + 2)) {
1175 mode = LS_MODE_LONG;
1176 continue;
1177 }
1178 if (*(arg + 3))
1179 return -E_AFT_SYNTAX;
1180 switch(*(arg + 2)) {
1181 case 's':
1182 mode = LS_MODE_SHORT;
1183 continue;
1184 case 'l':
1185 mode = LS_MODE_LONG;
1186 continue;
1187 case 'v':
1188 mode = LS_MODE_VERBOSE;
1189 continue;
1190 case 'm':
1191 mode = LS_MODE_MBOX;
1192 continue;
1193 default:
1194 return -E_AFT_SYNTAX;
1195 }
1196 }
1197 if (!strcmp(arg, "-p")) {
1198 flags |= LS_FLAG_FULL_PATH;
1199 continue;
1200 }
1201 if (!strcmp(arg, "-a")) {
1202 flags |= LS_FLAG_ADMISSIBLE_ONLY;
1203 continue;
1204 }
1205 if (!strcmp(arg, "-r")) {
1206 flags |= LS_FLAG_REVERSE;
1207 continue;
1208 }
1209 if (!strncmp(arg, "-s", 2)) {
1210 if (!*(arg + 2) || *(arg + 3))
1211 return -E_AFT_SYNTAX;
1212 switch(*(arg + 2)) {
1213 case 'p':
1214 sort = LS_SORT_BY_PATH;
1215 continue;
1216 case 's': /* -ss implies -a */
1217 sort = LS_SORT_BY_SCORE;
1218 flags |= LS_FLAG_ADMISSIBLE_ONLY;
1219 continue;
1220 case 'l':
1221 sort = LS_SORT_BY_LAST_PLAYED;
1222 continue;
1223 case 'n':
1224 sort = LS_SORT_BY_NUM_PLAYED;
1225 continue;
1226 case 'f':
1227 sort = LS_SORT_BY_FREQUENCY;
1228 continue;
1229 case 'c':
1230 sort = LS_SORT_BY_CHANNELS;
1231 continue;
1232 case 'i':
1233 sort = LS_SORT_BY_IMAGE_ID;
1234 continue;
1235 case 'y':
1236 sort = LS_SORT_BY_LYRICS_ID;
1237 continue;
1238 case 'b':
1239 sort = LS_SORT_BY_BITRATE;
1240 continue;
1241 case 'd':
1242 sort = LS_SORT_BY_DURATION;
1243 continue;
1244 case 'a':
1245 sort = LS_SORT_BY_AUDIO_FORMAT;
1246 continue;
1247 default:
1248 return -E_AFT_SYNTAX;
1249 }
1250 }
1251 return -E_AFT_SYNTAX;
1252 }
1253 opts.flags = flags;
1254 opts.sorting = sort;
1255 opts.mode = mode;
1256 opts.num_patterns = argc - i;
1257 ret = send_option_arg_callback_request(&query, opts.num_patterns,
1258 argv + i, com_ls_callback, &ls_output);
1259 if (ret > 0) {
1260 ret = send_buffer(fd, (char *)ls_output.data);
1261 free(ls_output.data);
1262 }
1263 return ret;
1264 }
1265
1266 /**
1267 * Call the given function for each file in the audio file table.
1268 *
1269 * \param private_data An arbitrary data pointer, passed to \a func.
1270 * \param func The custom function to be called.
1271 *
1272 * \return The return value of the underlying call to osl_rbtree_loop().
1273 */
1274 int audio_file_loop(void *private_data, osl_rbtree_loop_func *func)
1275 {
1276 return osl_rbtree_loop(audio_file_table, AFTCOL_HASH, private_data,
1277 func);
1278 }
1279
1280 static struct osl_row *find_hash_sister(HASH_TYPE *hash)
1281 {
1282 const struct osl_object obj = {.data = hash, .size = HASH_SIZE};
1283 struct osl_row *row;
1284
1285 osl_get_row(audio_file_table, AFTCOL_HASH, &obj, &row);
1286 return row;
1287 }
1288
1289 enum aft_row_offsets {
1290 AFTROW_AFHI_OFFSET_POS = 0,
1291 AFTROW_CHUNKS_OFFSET_POS = 2,
1292 AFTROW_AUDIO_FORMAT_OFFSET = 4,
1293 AFTROW_FLAGS_OFFSET = 5,
1294 AFTROW_HASH_OFFSET = 9,
1295 AFTROW_PATH_OFFSET = (AFTROW_HASH_OFFSET + HASH_SIZE),
1296 };
1297
1298 /* never save the afsi, as the server knows it too. Note that afhi might be NULL.
1299 * In this case, afhi won't be stored in the buffer */
1300 static void save_audio_file_info(HASH_TYPE *hash, const char *path,
1301 struct audio_format_info *afhi, uint32_t flags,
1302 uint8_t audio_format_num, struct osl_object *obj)
1303 {
1304 size_t path_len = strlen(path) + 1;
1305 size_t afhi_size = sizeof_afhi_buf(afhi);
1306 size_t size = AFTROW_PATH_OFFSET + path_len + afhi_size
1307 + sizeof_chunk_info_buf(afhi);
1308 char *buf = para_malloc(size);
1309 uint16_t pos;
1310
1311 write_u8(buf + AFTROW_AUDIO_FORMAT_OFFSET, audio_format_num);
1312 write_u32(buf + AFTROW_FLAGS_OFFSET, flags);
1313
1314 memcpy(buf + AFTROW_HASH_OFFSET, hash, HASH_SIZE);
1315 strcpy(buf + AFTROW_PATH_OFFSET, path);
1316
1317 pos = AFTROW_PATH_OFFSET + path_len;
1318 PARA_DEBUG_LOG("size: %zu, afhi starts at %d\n", size, pos);
1319 PARA_DEBUG_LOG("last afhi byte: %p, pos %zu\n", buf + pos + afhi_size - 1,
1320 pos + afhi_size - 1);
1321 write_u16(buf + AFTROW_AFHI_OFFSET_POS, pos);
1322 save_afhi(afhi, buf + pos);
1323
1324 pos += afhi_size;
1325 PARA_DEBUG_LOG("size: %zu, chunks start at %d\n", size, pos);
1326 write_u16(buf + AFTROW_CHUNKS_OFFSET_POS, pos);
1327 save_chunk_info(afhi, buf + pos);
1328 PARA_DEBUG_LOG("last byte in buf: %p\n", buf + size - 1);
1329 obj->data = buf;
1330 obj->size = size;
1331 }
1332
1333 /*
1334 input:
1335 ~~~~~~
1336 HS: hash sister
1337 PB: path brother
1338 F: force flag given
1339
1340 output:
1341 ~~~~~~~
1342 AFHI: whether afhi and chunk table are computed and sent
1343 ACTION: table modifications to be performed
1344
1345 +---+----+-----+------+---------------------------------------------------+
1346 | HS | PB | F | AFHI | ACTION
1347 +---+----+-----+------+---------------------------------------------------+
1348 | Y | Y | Y | Y | if HS != PB: remove PB. HS: force afhi update,
1349 | | update path, keep afsi
1350 +---+----+-----+------+---------------------------------------------------+
1351 | Y | Y | N | N | if HS == PB: do not send callback request at all.
1352 | | otherwise: remove PB, HS: update path, keep afhi,
1353 | | afsi.
1354 +---+----+-----+------+---------------------------------------------------+
1355 | Y | N | Y | Y | (rename) force afhi update of HS, update path of
1356 | | HS, keep afsi
1357 +---+----+-----+------+---------------------------------------------------+
1358 | Y | N | N | N | (file rename) update path of HS, keep afsi, afhi
1359 +---+----+-----+------+---------------------------------------------------+
1360 | N | Y | Y | Y | (file change) update afhi, hash, of PB, keep afsi
1361 | | (force has no effect)
1362 +---+----+-----+------+---------------------------------------------------+
1363 | N | Y | N | Y | (file change) update afhi, hash of PB, keep afsi
1364 +---+----+-----+------+---------------------------------------------------+
1365 | N | N | Y | Y | (new file) create new entry (force has no effect)
1366 +---+----+-----+------+---------------------------------------------------+
1367 | N | N | N | Y | (new file) create new entry
1368 +---+----+-----+------+---------------------------------------------------+
1369
1370 afhi <=> force or no HS
1371
1372 */
1373
1374 /** Flags passed to the add command. */
1375 enum com_add_flags {
1376 /** Skip paths that exist already. */
1377 ADD_FLAG_LAZY = 1,
1378 /** Force adding. */
1379 ADD_FLAG_FORCE = 2,
1380 /** Print what is being done. */
1381 ADD_FLAG_VERBOSE = 4,
1382 /** Try to add files with unknown suffixes. */
1383 ADD_FLAG_ALL = 8,
1384 };
1385
1386 static int com_add_callback(const struct osl_object *query,
1387 struct osl_object *result)
1388 {
1389 char *buf = query->data, *path;
1390 struct osl_row *pb, *aft_row;
1391 struct osl_row *hs;
1392 struct osl_object objs[NUM_AFT_COLUMNS];
1393 HASH_TYPE *hash;
1394 char asc[2 * HASH_SIZE + 1];
1395 int ret;
1396 char afsi_buf[AFSI_SIZE];
1397 uint32_t flags = read_u32(buf + AFTROW_FLAGS_OFFSET);
1398 struct afs_info default_afsi = {.last_played = 0};
1399 struct para_buffer msg = {.buf = NULL};
1400
1401 hash = (HASH_TYPE *)buf + AFTROW_HASH_OFFSET;
1402 hash_to_asc(hash, asc);;
1403 objs[AFTCOL_HASH].data = buf + AFTROW_HASH_OFFSET;
1404 objs[AFTCOL_HASH].size = HASH_SIZE;
1405
1406 path = buf + AFTROW_PATH_OFFSET;
1407 objs[AFTCOL_PATH].data = path;
1408 objs[AFTCOL_PATH].size = strlen(path) + 1;
1409
1410 PARA_INFO_LOG("request to add %s\n", path);
1411 hs = find_hash_sister(hash);
1412 ret = aft_get_row_of_path(path, &pb);
1413 if (ret < 0 && ret != -E_RB_KEY_NOT_FOUND)
1414 return ret;
1415 if (hs && pb && hs == pb && !(flags & ADD_FLAG_FORCE)) {
1416 if (flags & ADD_FLAG_VERBOSE)
1417 para_printf(&msg, "ignoring duplicate\n");
1418 ret = 1;
1419 goto out;
1420 }
1421 if (hs && hs != pb) {
1422 struct osl_object obj;
1423 if (pb) { /* hs trumps pb, remove pb */
1424 if (flags & ADD_FLAG_VERBOSE)
1425 para_printf(&msg, "removing path brother\n");
1426 ret = osl_del_row(audio_file_table, pb);
1427 if (ret < 0)
1428 goto out;
1429 pb = NULL;
1430 }
1431 /* file rename, update hs' path */
1432 if (flags & ADD_FLAG_VERBOSE) {
1433 ret = osl_get_object(audio_file_table, hs,
1434 AFTCOL_PATH, &obj);
1435 if (ret < 0)
1436 goto out;
1437 para_printf(&msg, "renamed from %s\n", (char *)obj.data);
1438 }
1439 ret = osl_update_object(audio_file_table, hs, AFTCOL_PATH,
1440 &objs[AFTCOL_PATH]);
1441 if (ret < 0)
1442 goto out;
1443 afs_event(AUDIO_FILE_RENAME, &msg, hs);
1444 if (!(flags & ADD_FLAG_FORCE))
1445 goto out;
1446 }
1447 /* no hs or force mode, child must have sent afhi */
1448 uint16_t afhi_offset = read_u16(buf + AFTROW_AFHI_OFFSET_POS);
1449 uint16_t chunks_offset = read_u16(buf + AFTROW_CHUNKS_OFFSET_POS);
1450
1451 objs[AFTCOL_AFHI].data = buf + afhi_offset;
1452 objs[AFTCOL_AFHI].size = chunks_offset - afhi_offset;
1453 ret = -E_NO_AFHI;
1454 if (!objs[AFTCOL_AFHI].size) /* "impossible" */
1455 goto out;
1456 objs[AFTCOL_CHUNKS].data = buf + chunks_offset;
1457 objs[AFTCOL_CHUNKS].size = query->size - chunks_offset;
1458 if (pb && !hs) { /* update pb's hash */
1459 char old_asc[2 * HASH_SIZE + 1];
1460 HASH_TYPE *old_hash;
1461 ret = get_hash_of_row(pb, &old_hash);
1462 if (ret < 0)
1463 goto out;
1464 hash_to_asc(old_hash, old_asc);
1465 if (flags & ADD_FLAG_VERBOSE)
1466 para_printf(&msg, "file change: %s -> %s\n",
1467 old_asc, asc);
1468 ret = osl_update_object(audio_file_table, pb, AFTCOL_HASH,
1469 &objs[AFTCOL_HASH]);
1470 if (ret < 0)
1471 goto out;
1472 }
1473 if (hs || pb) { /* (hs != NULL and pb != NULL) implies hs == pb */
1474 struct osl_row *row = pb? pb : hs;
1475 /* update afhi and chunk_table */
1476 if (flags & ADD_FLAG_VERBOSE)
1477 para_printf(&msg, "updating afhi and chunk table\n");
1478 ret = osl_update_object(audio_file_table, row, AFTCOL_AFHI,
1479 &objs[AFTCOL_AFHI]);
1480 if (ret < 0)
1481 goto out;
1482 ret = osl_update_object(audio_file_table, row, AFTCOL_CHUNKS,
1483 &objs[AFTCOL_CHUNKS]);
1484 if (ret < 0)
1485 goto out;
1486 afs_event(AFHI_CHANGE, &msg, row);
1487 goto out;
1488 }
1489 /* new entry, use default afsi */
1490 if (flags & ADD_FLAG_VERBOSE)
1491 para_printf(&msg, "new file\n");
1492 default_afsi.last_played = time(NULL) - 365 * 24 * 60 * 60;
1493 default_afsi.audio_format_id = read_u8(buf + AFTROW_AUDIO_FORMAT_OFFSET);
1494
1495 objs[AFTCOL_AFSI].data = &afsi_buf;
1496 objs[AFTCOL_AFSI].size = AFSI_SIZE;
1497 save_afsi(&default_afsi, &objs[AFTCOL_AFSI]);
1498 ret = osl_add_and_get_row(audio_file_table, objs, &aft_row);
1499 out:
1500 if (ret < 0)
1501 para_printf(&msg, "%s\n", PARA_STRERROR(-ret));
1502 if (!msg.buf)
1503 return 0;
1504 result->data = msg.buf;
1505 result->size = msg.size;
1506 afs_event(AUDIO_FILE_ADD, &msg, aft_row);
1507 return 1;
1508 }
1509
1510 struct private_add_data {
1511 int fd;
1512 uint32_t flags;
1513 };
1514
1515 static int path_brother_callback(const struct osl_object *query,
1516 struct osl_object *result)
1517 {
1518 char *path = query->data;
1519 struct osl_row *path_brother;
1520 int ret = aft_get_row_of_path(path, &path_brother);
1521 if (ret < 0)
1522 return ret;
1523 result->data = para_malloc(sizeof(path_brother));
1524 result->size = sizeof(path_brother);
1525 *(struct osl_row **)(result->data) = path_brother;
1526 return 1;
1527 }
1528
1529 static int hash_sister_callback(const struct osl_object *query,
1530 struct osl_object *result)
1531 {
1532 HASH_TYPE *hash = query->data;
1533 struct osl_row *hash_sister;
1534
1535 hash_sister = find_hash_sister(hash);
1536 if (!hash_sister)
1537 return -E_RB_KEY_NOT_FOUND;
1538 result->data = para_malloc(sizeof(hash_sister));
1539 result->size = sizeof(hash_sister);
1540 *(struct osl_row **)(result->data) = hash_sister;
1541 return 1;
1542 }
1543
1544 static int add_one_audio_file(const char *path, const void *private_data)
1545 {
1546 int ret, ret2;
1547 uint8_t format_num = -1;
1548 const struct private_add_data *pad = private_data;
1549 struct audio_format_info afhi, *afhi_ptr = NULL;
1550 struct osl_row *pb = NULL, *hs = NULL; /* path brother/hash sister */
1551 struct osl_object map, obj = {.data = NULL}, query, result;
1552 HASH_TYPE hash[HASH_SIZE];
1553
1554 afhi.header_offset = 0;
1555 afhi.header_len = 0;
1556 ret = guess_audio_format(path);
1557 if (ret < 0 && !(pad->flags & ADD_FLAG_ALL))
1558 goto out_free;
1559 query.data = (char *)path;
1560 query.size = strlen(path) + 1;
1561 ret = send_callback_request(path_brother_callback, &query, &result);
1562 if (ret < 0 && ret != -E_RB_KEY_NOT_FOUND)
1563 goto out_free;
1564 if (ret >= 0) {
1565 pb = *(struct osl_row **)result.data;
1566 free(result.data);
1567 }
1568 ret = 1;
1569 if (pb && (pad->flags & ADD_FLAG_LAZY)) { /* lazy is really cheap */
1570 if (pad->flags & ADD_FLAG_VERBOSE)
1571 ret = send_va_buffer(pad->fd, "lazy-ignore: %s\n", path);
1572 goto out_free;
1573 }
1574 /* We still want to add this file. Compute its hash. */
1575 ret = mmap_full_file(path, O_RDONLY, &map);
1576 if (ret < 0)
1577 goto out_free;
1578 hash_function(map.data, map.size, hash);
1579
1580 /* Check whether database contains file with the same hash. */
1581 query.data = hash;
1582 query.size = HASH_SIZE;
1583 ret = send_callback_request(hash_sister_callback, &query, &result);
1584 if (ret < 0 && ret != -E_RB_KEY_NOT_FOUND)
1585 goto out_free;
1586 if (ret >= 0) {
1587 hs = *(struct osl_row **)result.data;
1588 free(result.data);
1589 }
1590 /* Return success if we already know this file. */
1591 ret = 1;
1592 if (pb && hs && hs == pb && (!(pad->flags & ADD_FLAG_FORCE))) {
1593 if (pad->flags & ADD_FLAG_VERBOSE)
1594 ret = send_va_buffer(pad->fd,
1595 "%s exists, not forcing update\n", path);
1596 goto out_unmap;
1597 }
1598 /*
1599 * we won't recalculate the audio format info and the chunk table if
1600 * there is a hash sister unless in FORCE mode.
1601 */
1602 if (!hs || (pad->flags & ADD_FLAG_FORCE)) {
1603 ret = compute_afhi(path, map.data, map.size, &afhi);
1604 if (ret < 0)
1605 goto out_unmap;
1606 format_num = ret;
1607 afhi_ptr = &afhi;
1608 }
1609 if (pad->flags & ADD_FLAG_VERBOSE) {
1610 ret = send_va_buffer(pad->fd, "adding %s\n", path);
1611 if (ret < 0)
1612 goto out_unmap;
1613 }
1614 munmap(map.data, map.size);
1615 save_audio_file_info(hash, path, afhi_ptr, pad->flags, format_num, &obj);
1616 /* Ask afs to consider this entry for adding. */
1617 ret = send_callback_request(com_add_callback, &obj, &result);
1618 if (result.data && result.size) {
1619 ret2 = send_va_buffer(pad->fd, "%s", (char *)result.data);
1620 free(result.data);
1621 if (ret >= 0 && ret2 < 0)
1622 ret = ret2;
1623 }
1624 goto out_free;
1625
1626 out_unmap:
1627 munmap(map.data, map.size);
1628 out_free:
1629 if (ret < 0 && ret != -E_SEND)
1630 send_va_buffer(pad->fd, "failed to add %s (%s)\n", path,
1631 PARA_STRERROR(-ret));
1632 free(obj.data);
1633 if (afhi_ptr)
1634 free(afhi_ptr->chunk_table);
1635 /* it's not an error if not all files could be added */
1636 return ret == -E_SEND? ret : 1;
1637 }
1638
1639 int com_add(int fd, int argc, char * const * const argv)
1640 {
1641 int i, ret;
1642 struct private_add_data pad = {.fd = fd, .flags = 0};
1643 struct stat statbuf;
1644
1645 for (i = 1; i < argc; i++) {
1646 const char *arg = argv[i];
1647 if (arg[0] != '-')
1648 break;
1649 if (!strcmp(arg, "--")) {
1650 i++;
1651 break;
1652 }
1653 if (!strcmp(arg, "-a")) {
1654 pad.flags |= ADD_FLAG_ALL;
1655 continue;
1656 }
1657 if (!strcmp(arg, "-l")) {
1658 pad.flags |= ADD_FLAG_LAZY;
1659 continue;
1660 }
1661 if (!strcmp(arg, "-f")) {
1662 pad.flags |= ADD_FLAG_FORCE;
1663 continue;
1664 }
1665 if (!strcmp(arg, "-v")) {
1666 pad.flags |= ADD_FLAG_VERBOSE;
1667 continue;
1668 }
1669 }
1670 if (argc <= i)
1671 return -E_AFT_SYNTAX;
1672 for (; i < argc; i++) {
1673 char *path;
1674 ret = verify_path(argv[i], &path);
1675 if (ret < 0) {
1676 ret = send_va_buffer(fd, "%s: %s\n", argv[i], PARA_STRERROR(-ret));
1677 if (ret < 0)
1678 return ret;
1679 continue;
1680 }
1681 ret = stat(path, &statbuf);
1682 if (ret < 0) {
1683 ret = send_va_buffer(fd, "failed to stat %s (%s)\n", path,
1684 strerror(errno));
1685 free(path);
1686 if (ret < 0)
1687 return ret;
1688 continue;
1689 }
1690 if (S_ISDIR(statbuf.st_mode))
1691 ret = for_each_file_in_dir(path, add_one_audio_file,
1692 &pad);
1693 else
1694 ret = add_one_audio_file(path, &pad);
1695 if (ret < 0) {
1696 send_va_buffer(fd, "%s: %s\n", path, PARA_STRERROR(-ret));
1697 free(path);
1698 return ret;
1699 }
1700 free(path);
1701 }
1702 return 1;
1703
1704 }
1705
1706 /**
1707 * Flags used by the touch command.
1708 *
1709 * \sa com_touch().
1710 */
1711 enum touch_flags {
1712 /** Whether the \p FNM_PATHNAME flag should be passed to fnmatch(). */
1713 TOUCH_FLAG_FNM_PATHNAME = 1,
1714 /** Activates verbose mode. */
1715 TOUCH_FLAG_VERBOSE = 2
1716 };
1717
1718 struct com_touch_options {
1719 int32_t num_played;
1720 int64_t last_played;
1721 int32_t lyrics_id;
1722 int32_t image_id;
1723 unsigned flags;
1724 };
1725
1726 struct touch_action_data {
1727 struct com_touch_options *cto;
1728 struct para_buffer pb;
1729 };
1730
1731 static int touch_audio_file(__a_unused struct osl_table *table,
1732 struct osl_row *row, const char *name, void *data)
1733 {
1734 struct touch_action_data *tad = data;
1735 struct osl_object obj;
1736 struct afs_info old_afsi, new_afsi;
1737 int ret, no_options = tad->cto->num_played < 0 && tad->cto->last_played < 0 &&
1738 tad->cto->lyrics_id < 0 && tad->cto->image_id < 0;
1739 struct afsi_change_event_data aced;
1740
1741 ret = get_afsi_object_of_row(row, &obj);
1742 if (ret < 0) {
1743 para_printf(&tad->pb, "%s: %s\n", name, PARA_STRERROR(-ret));
1744 return 1;
1745 }
1746 ret = load_afsi(&old_afsi, &obj);
1747 if (ret < 0) {
1748 para_printf(&tad->pb, "%s: %s\n", name, PARA_STRERROR(-ret));
1749 return 1;
1750 }
1751 new_afsi = old_afsi;
1752 if (no_options) {
1753 new_afsi.num_played++;
1754 new_afsi.last_played = time(NULL);
1755 if (tad->cto->flags & TOUCH_FLAG_VERBOSE)
1756 para_printf(&tad->pb, "%s: num_played = %u, "
1757 "last_played = now()\n", name,
1758 new_afsi.num_played);
1759 } else {
1760 if (tad->cto->flags & TOUCH_FLAG_VERBOSE)
1761 para_printf(&tad->pb, "touching %s\n", name);
1762 if (tad->cto->lyrics_id >= 0)
1763 new_afsi.lyrics_id = tad->cto->lyrics_id;
1764 if (tad->cto->image_id >= 0)
1765 new_afsi.image_id = tad->cto->image_id;
1766 if (tad->cto->num_played >= 0)
1767 new_afsi.num_played = tad->cto->num_played;
1768 if (tad->cto->last_played >= 0)
1769 new_afsi.last_played = tad->cto->last_played;
1770 }
1771 save_afsi(&new_afsi, &obj); /* in-place update */
1772 aced.aft_row = row;
1773 aced.old_afsi = &old_afsi;
1774 afs_event(AFSI_CHANGE, &tad->pb, &aced);
1775 return 1;
1776 }
1777
1778 static int com_touch_callback(const struct osl_object *query,
1779 struct osl_object *result)
1780 {
1781 struct touch_action_data tad = {.cto = query->data};
1782 int ret;
1783 struct pattern_match_data pmd = {
1784 .table = audio_file_table,
1785 .loop_col_num = AFTCOL_HASH,
1786 .match_col_num = AFTCOL_PATH,
1787 .patterns = {.data = (char *)query->data + sizeof(*tad.cto),
1788 .size = query->size - sizeof(*tad.cto)},
1789 .data = &tad,
1790 .action = touch_audio_file
1791 };
1792 if (tad.cto->flags & TOUCH_FLAG_FNM_PATHNAME)
1793 pmd.fnmatch_flags |= FNM_PATHNAME;
1794 ret = for_each_matching_row(&pmd);
1795 if (ret < 0)
1796 para_printf(&tad.pb, "%s\n", PARA_STRERROR(-ret));
1797 if (tad.pb.buf) {
1798 result->data = tad.pb.buf;
1799 result->size = tad.pb.size;
1800 return 1;
1801 }
1802 return ret < 0? ret : 0;
1803 }
1804
1805 int com_touch(int fd, int argc, char * const * const argv)
1806 {
1807 struct com_touch_options cto = {
1808 .num_played = -1,
1809 .last_played = -1,
1810 .lyrics_id = -1,
1811 .image_id = -1
1812 };
1813 struct osl_object query = {.data = &cto, .size = sizeof(cto)},
1814 result;
1815 int i, ret;
1816
1817
1818 for (i = 1; i < argc; i++) {
1819 const char *arg = argv[i];
1820 if (arg[0] != '-')
1821 break;
1822 if (!strcmp(arg, "--")) {
1823 i++;
1824 break;
1825 }
1826 if (!strncmp(arg, "-n", 2)) {
1827 ret = para_atoi32(arg + 2, &cto.num_played);
1828 if (ret < 0)
1829 return ret;
1830 continue;
1831 }
1832 if (!strncmp(arg, "-l", 2)) {
1833 ret = para_atoi64(arg + 2, &cto.last_played);
1834 if (ret < 0)
1835 return ret;
1836 continue;
1837 }
1838 if (!strncmp(arg, "-y", 2)) {
1839 ret = para_atoi32(arg + 2, &cto.lyrics_id);
1840 if (ret < 0)
1841 return ret;
1842 continue;
1843 }
1844 if (!strncmp(arg, "-i", 2)) {
1845 ret = para_atoi32(arg + 2, &cto.image_id);
1846 if (ret < 0)
1847 return ret;
1848 continue;
1849 }
1850 if (!strcmp(arg, "-p")) {
1851 cto.flags |= TOUCH_FLAG_FNM_PATHNAME;
1852 continue;
1853 }
1854 if (!strcmp(arg, "-v")) {
1855 cto.flags |= TOUCH_FLAG_VERBOSE;
1856 continue;
1857 }
1858 break; /* non-option starting with dash */
1859 }
1860 if (i >= argc)
1861 return -E_AFT_SYNTAX;
1862 ret = send_option_arg_callback_request(&query, argc - i,
1863 argv + i, com_touch_callback, &result);
1864 if (ret > 0) {
1865 send_buffer(fd, (char *)result.data);
1866 free(result.data);
1867 } else
1868 send_va_buffer(fd, "%s\n", PARA_STRERROR(-ret));
1869 return ret;
1870 }
1871
1872 enum rm_flags {
1873 RM_FLAG_VERBOSE = 1,
1874 RM_FLAG_FORCE = 2,
1875 RM_FLAG_FNM_PATHNAME = 4
1876 };
1877
1878 struct com_rm_data {
1879 uint32_t flags;
1880 struct para_buffer pb;
1881 unsigned num_removed;
1882 };
1883
1884 static int remove_audio_file(__a_unused struct osl_table *table,
1885 struct osl_row *row, const char *name, void *data)
1886 {
1887 struct com_rm_data *crd = data;
1888 int ret;
1889
1890 if (crd->flags & RM_FLAG_VERBOSE)
1891 para_printf(&crd->pb, "removing %s\n", name);
1892 afs_event(AUDIO_FILE_REMOVE, &crd->pb, row);
1893 ret = osl_del_row(audio_file_table, row);
1894 if (ret < 0)
1895 para_printf(&crd->pb, "%s: %s\n", name, PARA_STRERROR(-ret));
1896 else
1897 crd->num_removed++;
1898 return 1;
1899 }
1900
1901 static int com_rm_callback(const struct osl_object *query,
1902 __a_unused struct osl_object *result)
1903 {
1904 struct com_rm_data crd = {.flags = *(uint32_t *)query->data};
1905 int ret;
1906 struct pattern_match_data pmd = {
1907 .table = audio_file_table,
1908 .loop_col_num = AFTCOL_HASH,
1909 .match_col_num = AFTCOL_PATH,
1910 .patterns = {.data = (char *)query->data + sizeof(uint32_t),
1911 .size = query->size - sizeof(uint32_t)},
1912 .data = &crd,
1913 .action = remove_audio_file
1914 };
1915 if (crd.flags & RM_FLAG_FNM_PATHNAME)
1916 pmd.fnmatch_flags |= FNM_PATHNAME;
1917 ret = for_each_matching_row(&pmd);
1918 if (ret < 0)
1919 para_printf(&crd.pb, "%s\n", PARA_STRERROR(-ret));
1920 if (!crd.num_removed && !(crd.flags & RM_FLAG_FORCE))
1921 para_printf(&crd.pb, "no matches -- nothing removed\n");
1922 else {
1923 if (crd.flags & RM_FLAG_VERBOSE)
1924 para_printf(&crd.pb, "removed %u files\n", crd.num_removed);
1925 }
1926 if (crd.pb.buf) {
1927 result->data = crd.pb.buf;
1928 result->size = crd.pb.size;
1929 return 1;
1930 }
1931 return ret < 0? ret : 0;
1932 }
1933
1934 /* TODO options: -r (recursive) */
1935 int com_afs_rm(int fd, int argc, char * const * const argv)
1936 {
1937 uint32_t flags = 0;
1938 struct osl_object query = {.data = &flags, .size = sizeof(flags)},
1939 result;
1940 int i, ret;
1941
1942 for (i = 1; i < argc; i++) {
1943 const char *arg = argv[i];
1944 if (arg[0] != '-')
1945 break;
1946 if (!strcmp(arg, "--")) {
1947 i++;
1948 break;
1949 }
1950 if (!strcmp(arg, "-f")) {
1951 flags |= RM_FLAG_FORCE;
1952 continue;
1953 }
1954 if (!strcmp(arg, "-p")) {
1955 flags |= RM_FLAG_FNM_PATHNAME;
1956 continue;
1957 }
1958 if (!strcmp(arg, "-v")) {
1959 flags |= RM_FLAG_VERBOSE;
1960 continue;
1961 }
1962 break;
1963 }
1964 if (i >= argc)
1965 return -E_AFT_SYNTAX;
1966 ret = send_option_arg_callback_request(&query, argc - i, argv + i,
1967 com_rm_callback, &result);
1968 if (ret > 0) {
1969 send_buffer(fd, (char *)result.data);
1970 free(result.data);
1971 } else if (ret < 0)
1972 send_va_buffer(fd, "%s\n", PARA_STRERROR(-ret));
1973 return ret;
1974 }
1975
1976 /**
1977 * Flags used by the cpsi command.
1978 *
1979 * \sa com_cpsi().
1980 */
1981 enum cpsi_flags {
1982 /** Whether the lyrics id should be copied. */
1983 CPSI_FLAG_COPY_LYRICS_ID = 1,
1984 /** Whether the image id should be copied. */
1985 CPSI_FLAG_COPY_IMAGE_ID = 2,
1986 /** Whether the lastplayed time should be copied. */
1987 CPSI_FLAG_COPY_LASTPLAYED = 4,
1988 /** Whether the numplayed count should be copied. */
1989 CPSI_FLAG_COPY_NUMPLAYED = 8,
1990 /** Whether the attributes should be copied. */
1991 CPSI_FLAG_COPY_ATTRIBUTES = 16,
1992 /** Activates verbose mode. */
1993 CPSI_FLAG_VERBOSE = 32,
1994 };
1995
1996 struct cpsi_action_data {
1997 unsigned flags;
1998 unsigned num_copied;
1999 struct para_buffer pb;
2000 struct afs_info source_afsi;
2001 };
2002
2003 static int copy_selector_info(__a_unused struct osl_table *table,
2004 struct osl_row *row, const char *name, void *data)
2005 {
2006 struct cpsi_action_data *cad = data;
2007 struct osl_object target_afsi_obj;
2008 int ret;
2009 struct afs_info old_afsi, target_afsi;
2010 struct afsi_change_event_data aced;
2011
2012 ret = get_afsi_object_of_row(row, &target_afsi_obj);
2013 if (ret < 0)
2014 return ret;
2015 load_afsi(&target_afsi, &target_afsi_obj);
2016 old_afsi = target_afsi;
2017 if (cad->flags & CPSI_FLAG_COPY_LYRICS_ID)
2018 target_afsi.lyrics_id = cad->source_afsi.lyrics_id;
2019 if (cad->flags & CPSI_FLAG_COPY_IMAGE_ID)
2020 target_afsi.image_id = cad->source_afsi.image_id;
2021 if (cad->flags & CPSI_FLAG_COPY_LASTPLAYED)
2022 target_afsi.last_played = cad->source_afsi.last_played;
2023 if (cad->flags & CPSI_FLAG_COPY_NUMPLAYED)
2024 target_afsi.num_played = cad->source_afsi.num_played;
2025 if (cad->flags & CPSI_FLAG_COPY_ATTRIBUTES)
2026 target_afsi.attributes = cad->source_afsi.attributes;
2027 save_afsi(&target_afsi, &target_afsi_obj); /* in-place update */
2028 cad->num_copied++;
2029 if (cad->flags & CPSI_FLAG_VERBOSE)
2030 para_printf(&cad->pb, "copied afsi to %s\n", name);
2031 aced.aft_row = row;
2032 aced.old_afsi = &old_afsi;
2033 afs_event(AFSI_CHANGE, &cad->pb, &aced);
2034 return 1;
2035 }
2036
2037 static int com_cpsi_callback(const struct osl_object *query,
2038 struct osl_object *result)
2039 {
2040 struct cpsi_action_data cad = {.flags = *(unsigned *)query->data};
2041 int ret;
2042 char *source_path = (char *)query->data + sizeof(cad.flags);
2043
2044 ret = get_afsi_of_path(source_path, &cad.source_afsi);
2045 if (ret < 0)
2046 goto out;
2047 struct pattern_match_data pmd = {
2048 .table = audio_file_table,
2049 .loop_col_num = AFTCOL_HASH,
2050 .match_col_num = AFTCOL_PATH,
2051 .patterns = {.data = source_path + strlen(source_path) + 1,
2052 .size = query->size - sizeof(cad.flags)
2053 - strlen(source_path) - 1},
2054 .data = &cad,
2055 .action = copy_selector_info
2056 };
2057 ret = for_each_matching_row(&pmd);
2058 out:
2059 if (ret < 0)
2060 para_printf(&cad.pb, "%s\n", PARA_STRERROR(-ret));
2061 if (cad.flags & CPSI_FLAG_VERBOSE) {
2062 if (cad.num_copied)
2063 para_printf(&cad.pb, "copied requested afsi from %s "
2064 "to %u files\n",
2065 source_path, cad.num_copied);
2066 else
2067 para_printf(&cad.pb, "nothing copied\n");
2068 }
2069 if (cad.pb.buf) {
2070 result->data = cad.pb.buf;
2071 result->size = cad.pb.size;
2072 return 1;
2073 }
2074 return ret < 0? ret : 0;
2075 }
2076
2077 int com_cpsi(int fd, int argc, char * const * const argv)
2078 {
2079 unsigned flags = 0;
2080 int i, ret;
2081 struct osl_object options = {.data = &flags, .size = sizeof(flags)},
2082 result;
2083
2084 for (i = 1; i < argc; i++) {
2085 const char *arg = argv[i];
2086 if (arg[0] != '-')
2087 break;
2088 if (!strcmp(arg, "--")) {
2089 i++;
2090 break;
2091 }
2092 if (!strcmp(arg, "-y")) {
2093 flags |= CPSI_FLAG_COPY_LYRICS_ID;
2094 continue;
2095 }
2096 if (!strcmp(arg, "-i")) {
2097 flags |= CPSI_FLAG_COPY_IMAGE_ID;
2098 continue;
2099 }
2100 if (!strcmp(arg, "-l")) {
2101 flags |= CPSI_FLAG_COPY_LASTPLAYED;
2102 continue;
2103 }
2104 if (!strcmp(arg, "-n")) {
2105 flags |= CPSI_FLAG_COPY_NUMPLAYED;
2106 continue;
2107 }
2108 if (!strcmp(arg, "-a")) {
2109 flags |= CPSI_FLAG_COPY_ATTRIBUTES;
2110 continue;
2111 }
2112 if (!strcmp(arg, "-v")) {
2113 flags |= CPSI_FLAG_VERBOSE;
2114 continue;
2115 }
2116 break;
2117 }
2118 if (i + 1 >= argc) /* need at least souce file and pattern */
2119 return -E_AFT_SYNTAX;
2120 if (!(flags & ~CPSI_FLAG_VERBOSE)) /* no copy flags given */
2121 flags = ~(unsigned)CPSI_FLAG_VERBOSE | flags;
2122 ret = send_option_arg_callback_request(&options, argc - i, argv + i,
2123 com_cpsi_callback, &result);
2124 if (ret > 0) {
2125 send_buffer(fd, (char *)result.data);
2126 free(result.data);
2127 } else
2128 send_va_buffer(fd, "%s\n", PARA_STRERROR(-ret));
2129 return ret;
2130 }
2131
2132 /* TODO: optionally fix problems by removing offending rows */
2133 static int check_audio_file(struct osl_row *row, void *data)
2134 {
2135 char *path;
2136 struct para_buffer *pb = data;
2137 struct stat statbuf;
2138 int ret = get_audio_file_path_of_row(row, &path);
2139 struct afs_info afsi;
2140 char *blob_name;
2141
2142 if (ret < 0) {
2143 para_printf(pb, "%s\n", PARA_STRERROR(-ret));
2144 return 1;
2145 }
2146 if (stat(path, &statbuf) < 0)
2147 para_printf(pb, "%s: stat error (%s)\n", path, strerror(errno));
2148 else {
2149 if (!S_ISREG(statbuf.st_mode))
2150 para_printf(pb, "%s: not a regular file\n", path);
2151 }
2152 ret = get_afsi_of_row(row, &afsi);
2153 if (ret < 0) {
2154 para_printf(pb, "%s: %s\n", path, PARA_STRERROR(-ret));
2155 return 1;
2156 }
2157 ret = lyr_get_name_by_id(afsi.lyrics_id, &blob_name);
2158 if (ret < 0)
2159 para_printf(pb, "%s lyrics id %u: %s\n", path, afsi.lyrics_id,
2160 PARA_STRERROR(-ret));
2161 ret = img_get_name_by_id(afsi.image_id, &blob_name);
2162 if (ret < 0)
2163 para_printf(pb, "%s image id %u: %s\n", path, afsi.image_id,
2164 PARA_STRERROR(-ret));
2165 return 1;
2166 }
2167
2168 /**
2169 * Check the audio file table for inconsistencies.
2170 *
2171 * \param query Unused.
2172 * \param result Contains message string upon return.
2173 *
2174 * This function always succeeds.
2175 *
2176 * \sa com_check().
2177 */
2178 int aft_check_callback(__a_unused const struct osl_object *query, struct osl_object *result)
2179 {
2180 struct para_buffer pb = {.buf = NULL};
2181
2182 para_printf(&pb, "checking audio file table...\n");
2183 audio_file_loop(&pb, check_audio_file);
2184 result->data = pb.buf;
2185 result->size = pb.size;
2186 return 1;
2187
2188 }
2189
2190 /**
2191 * Close the audio file table.
2192 *
2193 * \param flags Ususal flags that are passed to osl_close_table().
2194 *
2195 * \sa osl_close_table().
2196 */
2197 static void aft_close(void)
2198 {
2199 osl_close_table(audio_file_table, OSL_MARK_CLEAN);
2200 audio_file_table = NULL;
2201 }
2202
2203 /**
2204 * Open the audio file table.
2205 *
2206 * \param dir The database directory.
2207 *
2208 * \return Standard.
2209 *
2210 * \sa osl_open_table().
2211 */
2212 static int aft_open(const char *dir)
2213 {
2214 int ret;
2215
2216 audio_file_table_desc.dir = dir;
2217 ret = osl_open_table(&audio_file_table_desc, &audio_file_table);
2218 if (ret >= 0) {
2219 unsigned num;
2220 osl_get_num_rows(audio_file_table, &num);
2221 PARA_INFO_LOG("audio file table contains %d files\n", num);
2222 return ret;
2223 }
2224 PARA_INFO_LOG("failed to open audio file table\n");
2225 audio_file_table = NULL;
2226 if (ret >= 0 || is_errno(-ret, ENOENT))
2227 return 1;
2228 return ret;
2229 }
2230
2231 static int aft_create(const char *dir)
2232 {
2233 audio_file_table_desc.dir = dir;
2234 return osl_create_table(&audio_file_table_desc);
2235 }
2236
2237 static int clear_attribute(struct osl_row *row, void *data)
2238 {
2239 struct rmatt_event_data *red = data;
2240 struct afs_info afsi;
2241 struct osl_object obj;
2242 int ret = get_afsi_object_of_row(row, &obj);
2243 uint64_t mask = ~(1ULL << red->bitnum);
2244
2245 if (ret < 0)
2246 return ret;
2247 ret = load_afsi(&afsi, &obj);
2248 if (ret < 0)
2249 return ret;
2250 afsi.attributes &= mask;
2251 save_afsi(&afsi, &obj);
2252 return 1;
2253 }
2254
2255 static int aft_event_handler(enum afs_events event, struct para_buffer *pb,
2256 void *data)
2257 {
2258 switch(event) {
2259 case ATTRIBUTE_REMOVE: {
2260 const struct rmatt_event_data *red = data;
2261 para_printf(pb, "clearing attribute %s (bit %u) from all "
2262 "entries in the audio file table\n", red->name,
2263 red->bitnum);
2264 return audio_file_loop(data, clear_attribute);
2265 }
2266 default:
2267 return 1;
2268 }
2269 }
2270
2271 void aft_init(struct afs_table *t)
2272 {
2273 t->name = audio_file_table_desc.name;
2274 t->open = aft_open;
2275 t->close = aft_close;
2276 t->create = aft_create;
2277 t->event_handler = aft_event_handler;
2278 }