Rename struct audio_format_info to afh_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 <dirent.h> /* readdir() */
10 #include "para.h"
11 #include "error.h"
12 #include "string.h"
13 #include <sys/mman.h>
14 #include <fnmatch.h>
15 #include "afh.h"
16 #include "afs.h"
17 #include "net.h"
18 #include "vss.h"
19 #include "fd.h"
20 #include "ipc.h"
21
22 static struct osl_table *audio_file_table;
23
24 /** The different sorting methods of the ls command. */
25 enum ls_sorting_method {
26 /** -sp (default) */
27 LS_SORT_BY_PATH,
28 /** -ss */
29 LS_SORT_BY_SCORE,
30 /** -sl */
31 LS_SORT_BY_LAST_PLAYED,
32 /** -sn */
33 LS_SORT_BY_NUM_PLAYED,
34 /** -sf */
35 LS_SORT_BY_FREQUENCY,
36 /** -sc */
37 LS_SORT_BY_CHANNELS,
38 /** -si */
39 LS_SORT_BY_IMAGE_ID,
40 /** -sy */
41 LS_SORT_BY_LYRICS_ID,
42 /** -sb */
43 LS_SORT_BY_BITRATE,
44 /** -sd */
45 LS_SORT_BY_DURATION,
46 /** -sa */
47 LS_SORT_BY_AUDIO_FORMAT,
48 /** -sh */
49 LS_SORT_BY_HASH,
50 };
51
52 /** The different listing modes of the ls command. */
53 enum ls_listing_mode {
54 /** Default listing mode. */
55 LS_MODE_SHORT,
56 /** -l or -ll */
57 LS_MODE_LONG,
58 /** -lv */
59 LS_MODE_VERBOSE,
60 /** -lm */
61 LS_MODE_MBOX
62 };
63
64 /** The flags accepted by the ls command. */
65 enum ls_flags {
66 /** -p */
67 LS_FLAG_FULL_PATH = 1,
68 /** -a */
69 LS_FLAG_ADMISSIBLE_ONLY = 2,
70 /** -r */
71 LS_FLAG_REVERSE = 4,
72 };
73
74 /**
75 * The size of the individual output fields of the ls command.
76 *
77 * These depend on the actual content being listed. If, for instance only files
78 * with duration less than an hour are being listed, then the duration with is
79 * made smaller because then the duration is listed as mm:ss rather than
80 * hh:mm:ss.
81 */
82 struct ls_widths {
83 /** size of the score field. */
84 unsigned short score_width;
85 /** size of the image id field. */
86 unsigned short image_id_width;
87 /** size of the lyrics id field. */
88 unsigned short lyrics_id_width;
89 /** size of the bitrate field. */
90 unsigned short bitrate_width;
91 /** size of the frequency field. */
92 unsigned short frequency_width;
93 /** size of the duration field. */
94 unsigned short duration_width;
95 /** size of the num played field. */
96 unsigned short num_played_width;
97 };
98
99 /** Data passed to the different compare functions (called by qsort()). */
100 struct ls_data {
101 /** Usual audio format handler information. */
102 struct afh_info afhi;
103 /** Audio file selector information. */
104 struct afs_info afsi;
105 /** The full path of the audio file. */
106 char *path;
107 /** The score value (if -a was given). */
108 long score;
109 /** The sha1 hash of audio file. */
110 HASH_TYPE *hash;
111 };
112
113 struct ls_options {
114 unsigned flags;
115 enum ls_sorting_method sorting;
116 enum ls_listing_mode mode;
117 char **patterns;
118 int num_patterns;
119 struct ls_widths widths;
120 uint32_t array_size;
121 uint32_t num_matching_paths;
122 struct ls_data *data;
123 struct ls_data **data_ptr;
124 };
125
126 /**
127 * Describes the layout of the mmapped-afs info struct.
128 *
129 * \sa struct afs_info.
130 */
131 enum afsi_offsets {
132 /** Where .last_played is stored. */
133 AFSI_LAST_PLAYED_OFFSET = 0,
134 /** Storage position of the attributes bitmap. */
135 AFSI_ATTRIBUTES_OFFSET = 8,
136 /** Storage position of the .num_played field. */
137 AFSI_NUM_PLAYED_OFFSET = 16,
138 /** Storage position of the .image_id field. */
139 AFSI_IMAGE_ID_OFFSET = 20,
140 /** Storage position of the .lyrics_id field. */
141 AFSI_LYRICS_ID_OFFSET = 24,
142 /** Storage position of the .audio_format_id field. */
143 AFSI_AUDIO_FORMAT_ID_OFFSET = 28,
144 /** 3 bytes reserved space for future usage. */
145 AFSI_AUDIO_FORMAT_UNUSED_OFFSET = 29,
146 /** On-disk storage space needed. */
147 AFSI_SIZE = 32
148 };
149
150 /**
151 * Convert a struct afs_info to an osl object.
152 *
153 * \param afsi Pointer to the audio file info to be converted.
154 * \param obj Result pointer.
155 *
156 * \sa load_afsi().
157 */
158 void save_afsi(struct afs_info *afsi, struct osl_object *obj)
159 {
160 char *buf = obj->data;
161
162 write_u64(buf + AFSI_LAST_PLAYED_OFFSET, afsi->last_played);
163 write_u64(buf + AFSI_ATTRIBUTES_OFFSET, afsi->attributes);
164 write_u32(buf + AFSI_NUM_PLAYED_OFFSET, afsi->num_played);
165 write_u32(buf + AFSI_IMAGE_ID_OFFSET, afsi->image_id);
166 write_u32(buf + AFSI_LYRICS_ID_OFFSET, afsi->lyrics_id);
167 write_u8(buf + AFSI_AUDIO_FORMAT_ID_OFFSET,
168 afsi->audio_format_id);
169 memset(buf + AFSI_AUDIO_FORMAT_UNUSED_OFFSET, 0, 3);
170 }
171
172 /**
173 * Get the audio file selector info struct stored in an osl object.
174 *
175 * \param afsi Points to the audio_file info structure to be filled in.
176 * \param obj The osl object holding the data.
177 *
178 * \return Positive on success, negative on errors. Possible errors: \p E_BAD_AFS.
179 *
180 * \sa save_afsi().
181 */
182 int load_afsi(struct afs_info *afsi, struct osl_object *obj)
183 {
184 char *buf = obj->data;
185 if (obj->size < AFSI_SIZE)
186 return -E_BAD_AFSI;
187 afsi->last_played = read_u64(buf + AFSI_LAST_PLAYED_OFFSET);
188 afsi->attributes = read_u64(buf + AFSI_ATTRIBUTES_OFFSET);
189 afsi->num_played = read_u32(buf + AFSI_NUM_PLAYED_OFFSET);
190 afsi->image_id = read_u32(buf + AFSI_IMAGE_ID_OFFSET);
191 afsi->lyrics_id = read_u32(buf + AFSI_LYRICS_ID_OFFSET);
192 afsi->audio_format_id = read_u8(buf +
193 AFSI_AUDIO_FORMAT_ID_OFFSET);
194 return 1;
195 }
196
197 /** The columns of the audio file table. */
198 enum audio_file_table_columns {
199 /** The hash on the content of the audio file. */
200 AFTCOL_HASH,
201 /** The full path in the filesystem. */
202 AFTCOL_PATH,
203 /** The audio file selector info. */
204 AFTCOL_AFSI,
205 /** The audio format handler info. */
206 AFTCOL_AFHI,
207 /** The chunk table info and the chunk table of the audio file. */
208 AFTCOL_CHUNKS,
209 /** The number of columns of this table. */
210 NUM_AFT_COLUMNS
211 };
212
213 static struct osl_column_description aft_cols[] = {
214 [AFTCOL_HASH] = {
215 .storage_type = OSL_MAPPED_STORAGE,
216 .storage_flags = OSL_RBTREE | OSL_FIXED_SIZE | OSL_UNIQUE,
217 .name = "hash",
218 .compare_function = osl_hash_compare,
219 .data_size = HASH_SIZE
220 },
221 [AFTCOL_PATH] = {
222 .storage_type = OSL_MAPPED_STORAGE,
223 .storage_flags = OSL_RBTREE | OSL_UNIQUE,
224 .name = "path",
225 .compare_function = string_compare,
226 },
227 [AFTCOL_AFSI] = {
228 .storage_type = OSL_MAPPED_STORAGE,
229 .storage_flags = OSL_FIXED_SIZE,
230 .name = "afs_info",
231 .data_size = AFSI_SIZE
232 },
233 [AFTCOL_AFHI] = {
234 .storage_type = OSL_MAPPED_STORAGE,
235 .name = "afh_info",
236 },
237 [AFTCOL_CHUNKS] = {
238 .storage_type = OSL_DISK_STORAGE,
239 .name = "chunks",
240 }
241 };
242
243 static struct osl_table_description audio_file_table_desc = {
244 .name = "audio_files",
245 .num_columns = NUM_AFT_COLUMNS,
246 .flags = OSL_LARGE_TABLE,
247 .column_descriptions = aft_cols
248 };
249
250 /* We don't want * dot or dot-dot anywhere. */
251 static int verify_dotfile(const char *rest)
252 {
253 /*
254 * The first character was '.', but that has already been discarded, we
255 * now test the rest.
256 */
257 switch (*rest) {
258 case '\0': case '/': /* /foo/. and /foo/./bar are not ok */
259 return -1;
260 case '.': /* path start with /foo/.. */
261 if (rest[1] == '\0' || rest[1] == '/')
262 return -1; /* /foo/.. or /foo/../bar are not ok */
263 /* /foo/..bar is ok */
264 }
265 return 1;
266 }
267
268 /*
269 * We fundamentally don't like some paths: We don't want double slashes or
270 * slashes at the end that can make pathnames ambiguous.
271 */
272 static int verify_path(const char *orig_path, char **resolved_path)
273 {
274 char c;
275 size_t len;
276 char *path;
277
278 if (*orig_path != '/') /* we only accept absolute paths */
279 return -E_BAD_PATH;
280 len = strlen(orig_path);
281 *resolved_path = para_strdup(orig_path);
282 path = *resolved_path;
283 while (len > 1 && path[--len] == '/')
284 path[len] = '\0'; /* remove slash at the end */
285 c = *path++;
286 while (c) {
287 if (c == '/') {
288 c = *path++;
289 switch (c) {
290 case '/': /* double slash */
291 goto bad_path;
292 case '.':
293 if (verify_dotfile(path) < 0)
294 goto bad_path;
295 default:
296 continue;
297 }
298 }
299 c = *path++;
300 }
301 return 1;
302 bad_path:
303 free(*resolved_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 /** Number of channels is stored here. */
316 AFHI_CHANNELS_OFFSET = 12,
317 /** The tag info position. */
318 AFHI_INFO_STRING_OFFSET = 13,
319 /** Minimal on-disk size of a valid afhi struct. */
320 MIN_AFHI_SIZE = 14
321 };
322
323 static unsigned sizeof_afhi_buf(const struct afh_info *afhi)
324 {
325 if (!afhi)
326 return 0;
327 return strlen(afhi->info_string) + MIN_AFHI_SIZE;
328 }
329
330 static void save_afhi(struct afh_info *afhi, char *buf)
331 {
332 if (!afhi)
333 return;
334 write_u32(buf + AFHI_SECONDS_TOTAL_OFFSET,
335 afhi->seconds_total);
336 write_u32(buf + AFHI_BITRATE_OFFSET, afhi->bitrate);
337 write_u32(buf + AFHI_FREQUENCY_OFFSET, afhi->frequency);
338 write_u8(buf + AFHI_CHANNELS_OFFSET, afhi->channels);
339 strcpy(buf + AFHI_INFO_STRING_OFFSET, afhi->info_string); /* OK */
340 PARA_DEBUG_LOG("last byte written: %p\n", buf + AFHI_INFO_STRING_OFFSET + strlen(afhi->info_string));
341 }
342
343 static void load_afhi(const char *buf, struct afh_info *afhi)
344 {
345 afhi->seconds_total = read_u32(buf + AFHI_SECONDS_TOTAL_OFFSET);
346 afhi->bitrate = read_u32(buf + AFHI_BITRATE_OFFSET);
347 afhi->frequency = read_u32(buf + AFHI_FREQUENCY_OFFSET);
348 afhi->channels = read_u8(buf + AFHI_CHANNELS_OFFSET);
349 strcpy(afhi->info_string, buf + AFHI_INFO_STRING_OFFSET);
350 }
351
352 //#define SIZEOF_CHUNK_TABLE(afhi) (((afhi)->chunks_total + 1) * sizeof(uint32_t))
353
354 static unsigned sizeof_chunk_info_buf(struct afh_info *afhi)
355 {
356 if (!afhi)
357 return 0;
358 return 4 * (afhi->chunks_total + 1) + 20;
359
360 }
361
362 /** The offsets of the data contained in the AFTCOL_CHUNKS column. */
363 enum chunk_info_offsets{
364 /** The total number of chunks (4 bytes). */
365 CHUNKS_TOTAL_OFFSET = 0,
366 /** The length of the audio file header (4 bytes). */
367 HEADER_LEN_OFFSET = 4,
368 /** The start of the audio file header (4 bytes). */
369 HEADER_OFFSET_OFFSET = 8,
370 /** The seconds part of the chunk time (4 bytes). */
371 CHUNK_TV_TV_SEC_OFFSET = 12,
372 /** The microseconds part of the chunk time (4 bytes). */
373 CHUNK_TV_TV_USEC = 16,
374 /** Chunk table entries start here. */
375 CHUNK_TABLE_OFFSET = 20,
376 };
377
378 static void save_chunk_table(struct afh_info *afhi, char *buf)
379 {
380 int i;
381
382 PARA_DEBUG_LOG("%lu chunks\n", afhi->chunks_total);
383 for (i = 0; i <= afhi->chunks_total; i++)
384 write_u32(buf + 4 * i, afhi->chunk_table[i]);
385 }
386
387 static void load_chunk_table(struct afh_info *afhi, char *buf)
388 {
389 int i;
390 for (i = 0; i <= afhi->chunks_total; i++)
391 afhi->chunk_table[i] = read_u32(buf + 4 * i);
392 }
393
394 /* TODO: audio format handlers could just produce this */
395 static void save_chunk_info(struct afh_info *afhi, char *buf)
396 {
397 if (!afhi)
398 return;
399 write_u32(buf + CHUNKS_TOTAL_OFFSET, afhi->chunks_total);
400 write_u32(buf + HEADER_LEN_OFFSET, afhi->header_len);
401 write_u32(buf + HEADER_OFFSET_OFFSET, afhi->header_offset);
402 write_u32(buf + CHUNK_TV_TV_SEC_OFFSET, afhi->chunk_tv.tv_sec);
403 write_u32(buf + CHUNK_TV_TV_USEC, afhi->chunk_tv.tv_usec);
404 save_chunk_table(afhi, buf + CHUNK_TABLE_OFFSET);
405 }
406
407 static int load_chunk_info(struct osl_object *obj, struct afh_info *afhi)
408 {
409 char *buf = obj->data;
410
411 if (obj->size < CHUNK_TABLE_OFFSET)
412 return -E_BAD_DATA_SIZE;
413
414 afhi->chunks_total = read_u32(buf + CHUNKS_TOTAL_OFFSET);
415 afhi->header_len = read_u32(buf + HEADER_LEN_OFFSET);
416 afhi->header_offset = read_u32(buf + HEADER_OFFSET_OFFSET);
417 afhi->chunk_tv.tv_sec = read_u32(buf + CHUNK_TV_TV_SEC_OFFSET);
418 afhi->chunk_tv.tv_usec = read_u32(buf + CHUNK_TV_TV_USEC);
419
420 if ((afhi->chunks_total + 1) * 4 + CHUNK_TABLE_OFFSET > obj->size)
421 return -E_BAD_DATA_SIZE;
422 afhi->chunk_table = para_malloc((afhi->chunks_total + 1) * 4);
423 load_chunk_table(afhi, buf + CHUNK_TABLE_OFFSET);
424 return 1;
425 }
426
427 /**
428 * Get the row of the audio file table corresponding to the given path.
429 *
430 * \param path The full path of the audio file.
431 * \param row Result pointer.
432 *
433 * \return The return value of the underlying call to osl_get_row().
434 */
435 int aft_get_row_of_path(const char *path, struct osl_row **row)
436 {
437 struct osl_object obj = {.data = (char *)path, .size = strlen(path) + 1};
438
439 return osl_get_row(audio_file_table, AFTCOL_PATH, &obj, row);
440 }
441
442 /**
443 * Get the row of the audio file table corresponding to the given hash value.
444 *
445 * \param hash The hash value of the desired audio file.
446 * \param row resul pointer.
447 *
448 * \return The return value of the underlying call to osl_get_row().
449 */
450 int aft_get_row_of_hash(HASH_TYPE *hash, struct osl_row **row)
451 {
452 const struct osl_object obj = {.data = hash, .size = HASH_SIZE};
453 return osl_get_row(audio_file_table, AFTCOL_HASH, &obj, row);
454 }
455
456 /**
457 * Get the osl object holding the audio file selector info of a row.
458 *
459 * \param row Pointer to a row in the audio file table.
460 * \param obj Result pointer.
461 *
462 * \return The return value of the underlying call to osl_get_object().
463 */
464 int get_afsi_object_of_row(const struct osl_row *row, struct osl_object *obj)
465 {
466 return osl_get_object(audio_file_table, row, AFTCOL_AFSI, obj);
467 }
468
469 /**
470 * Get the osl object holding the audio file selector info, given a path.
471 *
472 *
473 * \param path The full path of the audio file.
474 * \param obj Result pointer.
475 *
476 * \return Positive on success, negative on errors.
477 */
478 int get_afsi_object_of_path(const char *path, struct osl_object *obj)
479 {
480 struct osl_row *row;
481 int ret = aft_get_row_of_path(path, &row);
482 if (ret < 0)
483 return ret;
484 return get_afsi_object_of_row(row, obj);
485 }
486
487 /**
488 * Get the audio file selector info, given a row of the audio file table.
489 *
490 * \param row Pointer to a row in the audio file table.
491 * \param afsi Result pointer.
492 *
493 * \return Positive on success, negative on errors.
494 */
495 int get_afsi_of_row(const struct osl_row *row, struct afs_info *afsi)
496 {
497 struct osl_object obj;
498 int ret = get_afsi_object_of_row(row, &obj);
499 if (ret < 0)
500 return ret;
501 return load_afsi(afsi, &obj);
502 }
503
504 /**
505 * Get the audio file selector info, given the path of an audio table.
506 *
507 * \param path The full path of the audio file.
508 * \param afsi Result pointer.
509 *
510 * \return Positive on success, negative on errors.
511 */
512 int get_afsi_of_path(const char *path, struct afs_info *afsi)
513 {
514 struct osl_object obj;
515 int ret = get_afsi_object_of_path(path, &obj);
516 if (ret < 0)
517 return ret;
518 return load_afsi(afsi, &obj);
519 }
520
521 /**
522 * Get the path of an audio file, given a row of the audio file table.
523 *
524 * \param row Pointer to a row in the audio file table.
525 * \param path Result pointer.
526 *
527 * The result is a pointer to mmapped data. The caller must not attempt
528 * to free it.
529 *
530 * \return Standard.
531 */
532 int get_audio_file_path_of_row(const struct osl_row *row, char **path)
533 {
534 struct osl_object path_obj;
535 int ret = osl_get_object(audio_file_table, row, AFTCOL_PATH,
536 &path_obj);
537 if (ret < 0)
538 return ret;
539 *path = path_obj.data;
540 return 1;
541 }
542
543 /**
544 * Get the object containing the hash value of an audio file, given a row.
545 *
546 * \param row Pointer to a row of the audio file table.
547 * \param obj Result pointer.
548 *
549 * \return The return value of the underlying call to osl_get_object().
550 *
551 * \sa get_hash_of_row().
552 */
553 static int get_hash_object_of_aft_row(const struct osl_row *row, struct osl_object *obj)
554 {
555 return osl_get_object(audio_file_table, row, AFTCOL_HASH, obj);
556 }
557
558 /**
559 * Get the hash value of an audio file, given a row of the audio file table.
560 *
561 * \param row Pointer to a row of the audio file table.
562 * \param hash Result pointer.
563 *
564 * \a hash points to mapped data and must not be freed by the caller.
565 *
566 * \return The return value of the underlying call to
567 * get_hash_object_of_aft_row().
568 */
569 static int get_hash_of_row(const struct osl_row *row, HASH_TYPE **hash)
570 {
571 struct osl_object obj;
572 int ret = get_hash_object_of_aft_row(row, &obj);
573
574 if (ret < 0)
575 return ret;
576 *hash = obj.data;
577 return 1;
578 }
579
580 /**
581 * Get the audio format handler info, given a row of the audio file table.
582 *
583 * \param row Pointer to a row of the audio file table.
584 * \param afhi Result pointer.
585 *
586 * \return The return value of the underlying call to osl_get_object().
587 *
588 * \sa get_chunk_table_of_row().
589 */
590 int get_afhi_of_row(const struct osl_row *row, struct afh_info *afhi)
591 {
592 struct osl_object obj;
593 int ret = osl_get_object(audio_file_table, row, AFTCOL_AFHI,
594 &obj);
595 if (ret < 0)
596 return ret;
597 load_afhi(obj.data, afhi);
598 return 1;
599 }
600
601 /* returns shmid on success */
602 static int save_afd(struct audio_file_data *afd)
603 {
604 size_t size = sizeof(*afd)
605 + 4 * (afd->afhi.chunks_total + 1);
606
607 PARA_DEBUG_LOG("size: %zu\n", size);
608 int shmid, ret = shm_new(size);
609 void *shm_afd;
610 char *buf;
611
612 if (ret < 0)
613 return ret;
614 shmid = ret;
615 ret = shm_attach(shmid, ATTACH_RW, &shm_afd);
616 if (ret < 0)
617 goto err;
618 *(struct audio_file_data *)shm_afd = *afd;
619 buf = shm_afd;
620 buf += sizeof(*afd);
621 save_chunk_table(&afd->afhi, buf);
622 shm_detach(shm_afd);
623 return shmid;
624 err:
625 shm_destroy(shmid);
626 return ret;
627 }
628
629 int load_afd(int shmid, struct audio_file_data *afd)
630 {
631 void *shm_afd;
632 char *buf;
633 int ret;
634
635 ret = shm_attach(shmid, ATTACH_RO, &shm_afd);
636 if (ret < 0)
637 return ret;
638 *afd = *(struct audio_file_data *)shm_afd;
639 buf = shm_afd;
640 buf += sizeof(*afd);
641 afd->afhi.chunk_table = para_malloc((afd->afhi.chunks_total + 1) * 4);
642 load_chunk_table(&afd->afhi, buf);
643 shm_detach(shm_afd);
644 return 1;
645 }
646
647 /**
648 * Mmap the given audio file and update statistics.
649 *
650 * \param aft_row Determines the audio file to be opened and updated.
651 * \param afd Result pointer.
652 *
653 * On success, the numplayed field of the audio file selector info is increased
654 * and the lastplayed time is set to the current time. Finally, the score of
655 * the audio file is updated.
656 *
657 * \return Positive on success, negative on errors.
658 */
659 int open_and_update_audio_file(struct osl_row *aft_row, struct audio_file_data *afd)
660 {
661 HASH_TYPE *aft_hash, file_hash[HASH_SIZE];
662 struct osl_object afsi_obj;
663 struct afs_info new_afsi;
664 int ret = get_hash_of_row(aft_row, &aft_hash);
665 struct afsi_change_event_data aced;
666 struct osl_object map, chunk_table_obj;
667 char *tmp, *path;
668
669 if (ret < 0)
670 return ret;
671 ret = get_audio_file_path_of_row(aft_row, &path);
672 if (ret < 0)
673 return ret;
674 strncpy(afd->path, path, sizeof(afd->path) - 1);
675 afd->path[sizeof(afd->path) - 1] = '\0';
676 ret = get_afsi_object_of_row(aft_row, &afsi_obj);
677 if (ret < 0)
678 return ret;
679 ret = load_afsi(&afd->afsi, &afsi_obj);
680 if (ret < 0)
681 return ret;
682 ret = get_afhi_of_row(aft_row, &afd->afhi);
683 if (ret < 0)
684 return ret;
685 ret = osl_open_disk_object(audio_file_table, aft_row,
686 AFTCOL_CHUNKS, &chunk_table_obj);
687 if (ret < 0)
688 return ret;
689 ret = mmap_full_file(path, O_RDONLY, &map.data,
690 &map.size, &afd->fd);
691 if (ret < 0)
692 goto err;
693 hash_function(map.data, map.size, file_hash);
694 ret = hash_compare(file_hash, aft_hash);
695 para_munmap(map.data, map.size);
696 if (ret) {
697 ret = -E_HASH_MISMATCH;
698 goto err;
699 }
700 new_afsi = afd->afsi;
701 new_afsi.num_played++;
702 new_afsi.last_played = time(NULL);
703 save_afsi(&new_afsi, &afsi_obj); /* in-place update */
704
705 ret = load_chunk_info(&chunk_table_obj, &afd->afhi);
706 if (ret < 0)
707 goto err;
708 ret = get_attribute_text(&afd->afsi.attributes, " ", &tmp);
709 if (ret < 0)
710 goto err;
711 tmp[sizeof(afd->attributes_string) - 1] = '\0';
712 strcpy(afd->attributes_string, tmp); /* OK */
713 free(tmp);
714
715 aced.aft_row = aft_row;
716 aced.old_afsi = &afd->afsi;
717 afs_event(AFSI_CHANGE, NULL, &aced);
718 ret = save_afd(afd);
719 if (ret < 0)
720 goto err;
721 free(afd->afhi.chunk_table);
722 err:
723 osl_close_disk_object(&chunk_table_obj);
724 return ret;
725 }
726
727 static int get_local_time(uint64_t *seconds, char *buf, size_t size,
728 time_t current_time, enum ls_listing_mode lm)
729 {
730 struct tm t;
731
732 if (!localtime_r((time_t *)seconds, &t))
733 return -E_LOCALTIME;
734 if (lm == LS_MODE_MBOX) {
735 if (!strftime(buf, size, "%c", &t))
736 return -E_STRFTIME;
737 return 1;
738 }
739 if (*seconds + 6 * 30 * 24 * 3600 > current_time) {
740 if (!strftime(buf, size, "%b %e %k:%M", &t))
741 return -E_STRFTIME;
742 return 1;
743 }
744 if (!strftime(buf, size, "%b %e %Y", &t))
745 return -E_STRFTIME;
746 return 1;
747 }
748
749 /** Compute the number of (decimal) digits of a number. */
750 #define GET_NUM_DIGITS(x, num) { \
751 typeof((x)) _tmp = PARA_ABS(x); \
752 *num = 1; \
753 if ((x)) \
754 while ((_tmp) > 9) { \
755 (_tmp) /= 10; \
756 (*num)++; \
757 } \
758 }
759
760 static short unsigned get_duration_width(int seconds)
761 {
762 short unsigned width;
763 unsigned hours = seconds / 3600, mins = (seconds % 3600) / 60;
764
765 if (!hours) /* less than one hour => m:ss or mm:ss => 4 or 5 digits */
766 return 4 + (mins > 9);
767 /* more than one hour => h:mm:ss, hh:mm:ss, hhh:mm:ss, ... */
768 GET_NUM_DIGITS(hours, &width);
769 return width + 6;
770 }
771
772 static void get_duration_buf(int seconds, char *buf, short unsigned max_width)
773 {
774 unsigned hours = seconds / 3600, mins = (seconds % 3600) / 60;
775
776 if (!hours) /* m:ss or mm:ss */
777 sprintf(buf, "%*u:%02u", max_width - 3, mins, seconds % 60);
778 else /* more than one hour => h:mm:ss, hh:mm:ss, hhh:mm:ss, ... */
779 sprintf(buf, "%*u:%02u:%02u", max_width - 6, hours, mins,
780 seconds % 60);
781 }
782
783 static char *make_attribute_lines(const char *att_bitmap, struct afs_info *afsi)
784 {
785 char *att_text, *att_lines;
786
787 get_attribute_text(&afsi->attributes, " ", &att_text);
788 if (!att_text)
789 return para_strdup(att_bitmap);
790 att_lines = make_message("%s\nattributes_txt: %s",
791 att_bitmap, att_text);
792 free(att_text);
793 return att_lines;
794 }
795
796 static char *make_lyrics_line(struct afs_info *afsi)
797 {
798 char *lyrics_name;
799
800 lyr_get_name_by_id(afsi->lyrics_id, &lyrics_name);
801 if (!lyrics_name)
802 return make_message("%u", afsi->lyrics_id);
803 return make_message("%u (%s)", afsi->lyrics_id, lyrics_name);
804 }
805
806 static char *make_image_line(struct afs_info *afsi)
807 {
808 char *image_name;
809 img_get_name_by_id(afsi->image_id, &image_name);
810 if (!image_name)
811 return make_message("%u", afsi->image_id);
812 return make_message("%u (%s)", afsi->image_id, image_name);
813 }
814
815 static int print_list_item(struct ls_data *d, struct ls_options *opts,
816 struct para_buffer *b, time_t current_time)
817 {
818 int ret;
819 char att_buf[65];
820 char last_played_time[30];
821 char duration_buf[30]; /* nobody has an audio file long enough to overflow this */
822 char score_buf[30] = "";
823 struct afs_info *afsi = &d->afsi;
824 struct afh_info *afhi = &d->afhi;
825 struct ls_widths *w = &opts->widths;
826 int have_score = opts->flags & LS_FLAG_ADMISSIBLE_ONLY;
827 char asc_hash[2 * HASH_SIZE + 1];
828 char *att_lines, *lyrics_line, *image_line;
829
830 if (opts->mode == LS_MODE_SHORT) {
831 para_printf(b, "%s\n", d->path);
832 return 1;
833 }
834 get_attribute_bitmap(&afsi->attributes, att_buf);
835 ret = get_local_time(&afsi->last_played, last_played_time,
836 sizeof(last_played_time), current_time, opts->mode);
837 if (ret < 0)
838 return ret;
839 get_duration_buf(afhi->seconds_total, duration_buf, w->duration_width);
840 if (have_score) {
841 if (opts->mode == LS_MODE_LONG)
842 sprintf(score_buf, "%*li ", w->score_width, d->score);
843 else
844 sprintf(score_buf, "%li ", d->score);
845 }
846
847 if (opts->mode == LS_MODE_LONG) {
848 para_printf(b,
849 "%s" /* score */
850 "%s " /* attributes */
851 "%*d " /* image_id */
852 "%*d " /* lyrics_id */
853 "%*d " /* bitrate */
854 "%s " /* audio format */
855 "%*d " /* frequency */
856 "%d " /* channels */
857 "%s " /* duration */
858 "%*d " /* num_played */
859 "%s " /* last_played */
860 "%s\n", /* path */
861 score_buf,
862 att_buf,
863 w->image_id_width, afsi->image_id,
864 w->lyrics_id_width, afsi->lyrics_id,
865 w->bitrate_width, afhi->bitrate,
866 audio_format_name(afsi->audio_format_id),
867 w->frequency_width, afhi->frequency,
868 afhi->channels,
869 duration_buf,
870 w->num_played_width, afsi->num_played,
871 last_played_time,
872 d->path
873 );
874 return 1;
875 }
876 hash_to_asc(d->hash, asc_hash);
877 att_lines = make_attribute_lines(att_buf, afsi);
878 lyrics_line = make_lyrics_line(afsi);
879 image_line = make_image_line(afsi);
880 /* TODO: Merge this with status items */
881 if (opts->mode == LS_MODE_VERBOSE) {
882 para_printf(b,
883 "%s: %s\n" /* path */
884 "%s%s%s" /* score */
885 "attributes: %s\n"
886 "hash: %s\n"
887 "image_id: %s\n"
888 "lyrics_id: %s\n"
889 "bitrate: %dkbit/s\n"
890 "format: %s\n"
891 "frequency: %dHz\n"
892 "channels: %d\n"
893 "duration: %s\n"
894 "num_played: %d\n"
895 "last_played: %s\n"
896 "tag info: %s\n",
897 (opts->flags & LS_FLAG_FULL_PATH)?
898 "path" : "file", d->path,
899 have_score? "score: " : "", score_buf,
900 have_score? "\n" : "",
901 att_lines,
902 asc_hash,
903 image_line,
904 lyrics_line,
905 afhi->bitrate,
906 audio_format_name(afsi->audio_format_id),
907 afhi->frequency,
908 afhi->channels,
909 duration_buf,
910 afsi->num_played,
911 last_played_time,
912 afhi->info_string
913 );
914 } else { /* mbox mode */
915 struct osl_object lyrics_def;
916 lyr_get_def_by_id(afsi->lyrics_id, &lyrics_def);
917 para_printf(b,
918 "From foo@localhost %s\n"
919 "Received: from\nTo: bar\nFrom: a\n"
920 "Subject: %s\n\n" /* path */
921 "%s%s%s" /* score */
922 "%s"
923 "hash: %s\n"
924 "image_id: %s\n"
925 "lyrics_id: %s\n"
926 "bitrate: %dkbit/s\n"
927 "format: %s\n"
928 "frequency: %dHz\n"
929 "channels: %d\n"
930 "duration: %s\n"
931 "num_played: %d\n"
932 "tag info: %s\n"
933 "%s%s\n",
934 last_played_time,
935 d->path,
936 have_score? "score: " : "", score_buf,
937 have_score? "\n" : "",
938 att_lines,
939 asc_hash,
940 image_line,
941 lyrics_line,
942 afhi->bitrate,
943 audio_format_name(afsi->audio_format_id),
944 afhi->frequency,
945 afhi->channels,
946 duration_buf,
947 afsi->num_played,
948 afhi->info_string,
949 lyrics_def.data? "Lyrics:\n~~~~~~~\n" : "",
950 lyrics_def.data? (char *)lyrics_def.data : ""
951 );
952 if (lyrics_def.data)
953 osl_close_disk_object(lyrics_def.data);
954 }
955 free(att_lines);
956 free(lyrics_line);
957 free(image_line);
958 return 1;
959 }
960
961 static int ls_audio_format_compare(const void *a, const void *b)
962 {
963 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
964 return NUM_COMPARE(d1->afsi.audio_format_id, d2->afsi.audio_format_id);
965 }
966
967 static int ls_duration_compare(const void *a, const void *b)
968 {
969 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
970 return NUM_COMPARE(d1->afhi.seconds_total, d2->afhi.seconds_total);
971 }
972
973 static int ls_bitrate_compare(const void *a, const void *b)
974 {
975 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
976 return NUM_COMPARE(d1->afhi.bitrate, d2->afhi.bitrate);
977 }
978
979 static int ls_lyrics_id_compare(const void *a, const void *b)
980 {
981 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
982 return NUM_COMPARE(d1->afsi.lyrics_id, d2->afsi.lyrics_id);
983 }
984
985 static int ls_image_id_compare(const void *a, const void *b)
986 {
987 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
988 return NUM_COMPARE(d1->afsi.image_id, d2->afsi.image_id);
989 }
990
991 static int ls_channels_compare(const void *a, const void *b)
992 {
993 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
994 return NUM_COMPARE(d1->afhi.channels, d2->afhi.channels);
995 }
996
997 static int ls_frequency_compare(const void *a, const void *b)
998 {
999 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1000 return NUM_COMPARE(d1->afhi.frequency, d2->afhi.frequency);
1001 }
1002
1003 static int ls_num_played_compare(const void *a, const void *b)
1004 {
1005 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1006 return NUM_COMPARE(d1->afsi.num_played, d2->afsi.num_played);
1007 }
1008
1009 static int ls_last_played_compare(const void *a, const void *b)
1010 {
1011 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1012 return NUM_COMPARE(d1->afsi.last_played, d2->afsi.last_played);
1013 }
1014
1015 static int ls_score_compare(const void *a, const void *b)
1016 {
1017 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1018 return NUM_COMPARE(d1->score, d2->score);
1019 }
1020
1021 static int ls_path_compare(const void *a, const void *b)
1022 {
1023 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1024 return strcmp(d1->path, d2->path);
1025 }
1026
1027 static int sort_matching_paths(struct ls_options *options)
1028 {
1029 size_t nmemb = options->num_matching_paths;
1030 size_t size = sizeof(*options->data_ptr);
1031 int (*compar)(const void *, const void *);
1032 int i;
1033
1034 options->data_ptr = para_malloc(nmemb * sizeof(*options->data_ptr));
1035 for (i = 0; i < nmemb; i++)
1036 options->data_ptr[i] = options->data + i;
1037
1038 /* In these cases the array is already sorted */
1039 if (options->sorting == LS_SORT_BY_PATH
1040 && !(options->flags & LS_FLAG_ADMISSIBLE_ONLY)
1041 && (options->flags & LS_FLAG_FULL_PATH))
1042 return 1;
1043 if (options->sorting == LS_SORT_BY_SCORE &&
1044 options->flags & LS_FLAG_ADMISSIBLE_ONLY)
1045 return 1;
1046
1047 switch (options->sorting) {
1048 case LS_SORT_BY_PATH:
1049 compar = ls_path_compare; break;
1050 case LS_SORT_BY_SCORE:
1051 compar = ls_score_compare; break;
1052 case LS_SORT_BY_LAST_PLAYED:
1053 compar = ls_last_played_compare; break;
1054 case LS_SORT_BY_NUM_PLAYED:
1055 compar = ls_num_played_compare; break;
1056 case LS_SORT_BY_FREQUENCY:
1057 compar = ls_frequency_compare; break;
1058 case LS_SORT_BY_CHANNELS:
1059 compar = ls_channels_compare; break;
1060 case LS_SORT_BY_IMAGE_ID:
1061 compar = ls_image_id_compare; break;
1062 case LS_SORT_BY_LYRICS_ID:
1063 compar = ls_lyrics_id_compare; break;
1064 case LS_SORT_BY_BITRATE:
1065 compar = ls_bitrate_compare; break;
1066 case LS_SORT_BY_DURATION:
1067 compar = ls_duration_compare; break;
1068 case LS_SORT_BY_AUDIO_FORMAT:
1069 compar = ls_audio_format_compare; break;
1070 default:
1071 return -E_BAD_SORT;
1072 }
1073 qsort(options->data_ptr, nmemb, size, compar);
1074 return 1;
1075 }
1076
1077 /* row is either an aft_row or a row of the score table */
1078 /* TODO: Only compute widths if we need them */
1079 static int prepare_ls_row(struct osl_row *row, void *ls_opts)
1080 {
1081 int ret, i;
1082 struct ls_options *options = ls_opts;
1083 struct ls_data *d;
1084 struct ls_widths *w;
1085 unsigned short num_digits;
1086 unsigned tmp;
1087 struct osl_row *aft_row;
1088 long score;
1089 char *path;
1090
1091 if (options->flags & LS_FLAG_ADMISSIBLE_ONLY) {
1092 ret = get_score_and_aft_row(row, &score, &aft_row);
1093 if (ret < 0)
1094 return ret;
1095 } else
1096 aft_row = row;
1097 ret = get_audio_file_path_of_row(aft_row, &path);
1098 if (ret < 0)
1099 return ret;
1100 if (!(options->flags & LS_FLAG_FULL_PATH)) {
1101 char *p = strrchr(path, '/');
1102 if (p)
1103 path = p + 1;
1104 }
1105 if (options->num_patterns) {
1106 for (i = 0; i < options->num_patterns; i++) {
1107 ret = fnmatch(options->patterns[i], path, 0);
1108 if (!ret)
1109 break;
1110 if (ret == FNM_NOMATCH)
1111 continue;
1112 return -E_FNMATCH;
1113 }
1114 if (i >= options->num_patterns) /* no match */
1115 return 1;
1116 }
1117 tmp = options->num_matching_paths++;
1118 if (options->num_matching_paths > options->array_size) {
1119 options->array_size++;
1120 options->array_size *= 2;
1121 options->data = para_realloc(options->data, options->array_size
1122 * sizeof(*options->data));
1123 }
1124 d = options->data + tmp;
1125 ret = get_afsi_of_row(aft_row, &d->afsi);
1126 if (ret < 0)
1127 return ret;
1128 ret = get_afhi_of_row(aft_row, &d->afhi);
1129 if (ret < 0)
1130 return ret;
1131 d->path = path;
1132 ret = get_hash_of_row(aft_row, &d->hash);
1133 if (ret < 0)
1134 return ret;
1135 w = &options->widths;
1136 GET_NUM_DIGITS(d->afsi.image_id, &num_digits);
1137 w->image_id_width = PARA_MAX(w->image_id_width, num_digits);
1138 GET_NUM_DIGITS(d->afsi.lyrics_id, &num_digits);
1139 w->lyrics_id_width = PARA_MAX(w->lyrics_id_width, num_digits);
1140 GET_NUM_DIGITS(d->afhi.bitrate, &num_digits);
1141 w->bitrate_width = PARA_MAX(w->bitrate_width, num_digits);
1142 GET_NUM_DIGITS(d->afhi.frequency, &num_digits);
1143 w->frequency_width = PARA_MAX(w->frequency_width, num_digits);
1144 GET_NUM_DIGITS(d->afsi.num_played, &num_digits);
1145 w->num_played_width = PARA_MAX(w->num_played_width, num_digits);
1146 /* get the number of chars to print this amount of time */
1147 tmp = get_duration_width(d->afhi.seconds_total);
1148 w->duration_width = PARA_MAX(w->duration_width, tmp);
1149 if (options->flags & LS_FLAG_ADMISSIBLE_ONLY) {
1150 GET_NUM_DIGITS(score, &num_digits);
1151 num_digits++; /* add one for the sign (space or "-") */
1152 w->score_width = PARA_MAX(w->score_width, num_digits);
1153 d->score = score;
1154 }
1155 return 1;
1156 }
1157
1158 static int com_ls_callback(const struct osl_object *query,
1159 struct osl_object *ls_output)
1160 {
1161 struct ls_options *opts = query->data;
1162 char *p, *pattern_start = (char *)query->data + sizeof(*opts);
1163 struct para_buffer b = {.buf = NULL, .size = 0};
1164 int i = 0, ret;
1165 time_t current_time;
1166
1167
1168 if (opts->num_patterns) {
1169 opts->patterns = para_malloc(opts->num_patterns * sizeof(char *));
1170 for (i = 0, p = pattern_start; i < opts->num_patterns; i++) {
1171 opts->patterns[i] = p;
1172 p += strlen(p) + 1;
1173 }
1174 } else
1175 opts->patterns = NULL;
1176 if (opts->flags & LS_FLAG_ADMISSIBLE_ONLY)
1177 ret = admissible_file_loop(opts, prepare_ls_row);
1178 else
1179 ret = osl_rbtree_loop(audio_file_table, AFTCOL_PATH, opts,
1180 prepare_ls_row);
1181 if (ret < 0)
1182 goto out;
1183 ret = opts->num_patterns? -E_NO_MATCH : 0;
1184 if (!opts->num_matching_paths)
1185 goto out;
1186 ret = sort_matching_paths(opts);
1187 if (ret < 0)
1188 goto out;
1189 time(&current_time);
1190 if (opts->flags & LS_FLAG_REVERSE)
1191 for (i = opts->num_matching_paths - 1; i >= 0; i--) {
1192 ret = print_list_item(opts->data_ptr[i], opts, &b, current_time);
1193 if (ret < 0)
1194 break;
1195 }
1196 else
1197 for (i = 0; i < opts->num_matching_paths; i++) {
1198 ret = print_list_item(opts->data_ptr[i], opts, &b, current_time);
1199 if (ret < 0)
1200 break;
1201 }
1202 ret = 1;
1203 out:
1204 ls_output->data = b.buf;
1205 ls_output->size = b.size;
1206 free(opts->data);
1207 free(opts->data_ptr);
1208 free(opts->patterns);
1209 return ret;
1210 }
1211
1212 /*
1213 * TODO: flags -h (sort by hash) -lm (list in mbox format)
1214 *
1215 * long list: list hash, attributes as (xx--x-x-), file size, lastplayed
1216 * full list: list everything, including afsi, afhi, atts as clear text
1217 *
1218 * */
1219 int com_ls(int fd, int argc, char * const * const argv)
1220 {
1221 int i, ret;
1222 unsigned flags = 0;
1223 enum ls_sorting_method sort = LS_SORT_BY_PATH;
1224 enum ls_listing_mode mode = LS_MODE_SHORT;
1225 struct ls_options opts = {.patterns = NULL};
1226 struct osl_object query = {.data = &opts, .size = sizeof(opts)},
1227 ls_output;
1228
1229 for (i = 1; i < argc; i++) {
1230 const char *arg = argv[i];
1231 if (arg[0] != '-')
1232 break;
1233 if (!strcmp(arg, "--")) {
1234 i++;
1235 break;
1236 }
1237 if (!strncmp(arg, "-l", 2)) {
1238 if (!*(arg + 2)) {
1239 mode = LS_MODE_LONG;
1240 continue;
1241 }
1242 if (*(arg + 3))
1243 return -E_AFT_SYNTAX;
1244 switch(*(arg + 2)) {
1245 case 's':
1246 mode = LS_MODE_SHORT;
1247 continue;
1248 case 'l':
1249 mode = LS_MODE_LONG;
1250 continue;
1251 case 'v':
1252 mode = LS_MODE_VERBOSE;
1253 continue;
1254 case 'm':
1255 mode = LS_MODE_MBOX;
1256 continue;
1257 default:
1258 return -E_AFT_SYNTAX;
1259 }
1260 }
1261 if (!strcmp(arg, "-p")) {
1262 flags |= LS_FLAG_FULL_PATH;
1263 continue;
1264 }
1265 if (!strcmp(arg, "-a")) {
1266 flags |= LS_FLAG_ADMISSIBLE_ONLY;
1267 continue;
1268 }
1269 if (!strcmp(arg, "-r")) {
1270 flags |= LS_FLAG_REVERSE;
1271 continue;
1272 }
1273 if (!strncmp(arg, "-s", 2)) {
1274 if (!*(arg + 2) || *(arg + 3))
1275 return -E_AFT_SYNTAX;
1276 switch(*(arg + 2)) {
1277 case 'p':
1278 sort = LS_SORT_BY_PATH;
1279 continue;
1280 case 's': /* -ss implies -a */
1281 sort = LS_SORT_BY_SCORE;
1282 flags |= LS_FLAG_ADMISSIBLE_ONLY;
1283 continue;
1284 case 'l':
1285 sort = LS_SORT_BY_LAST_PLAYED;
1286 continue;
1287 case 'n':
1288 sort = LS_SORT_BY_NUM_PLAYED;
1289 continue;
1290 case 'f':
1291 sort = LS_SORT_BY_FREQUENCY;
1292 continue;
1293 case 'c':
1294 sort = LS_SORT_BY_CHANNELS;
1295 continue;
1296 case 'i':
1297 sort = LS_SORT_BY_IMAGE_ID;
1298 continue;
1299 case 'y':
1300 sort = LS_SORT_BY_LYRICS_ID;
1301 continue;
1302 case 'b':
1303 sort = LS_SORT_BY_BITRATE;
1304 continue;
1305 case 'd':
1306 sort = LS_SORT_BY_DURATION;
1307 continue;
1308 case 'a':
1309 sort = LS_SORT_BY_AUDIO_FORMAT;
1310 continue;
1311 default:
1312 return -E_AFT_SYNTAX;
1313 }
1314 }
1315 return -E_AFT_SYNTAX;
1316 }
1317 opts.flags = flags;
1318 opts.sorting = sort;
1319 opts.mode = mode;
1320 opts.num_patterns = argc - i;
1321 ret = send_option_arg_callback_request(&query, opts.num_patterns,
1322 argv + i, com_ls_callback, &ls_output);
1323 if (ret > 0) {
1324 ret = send_buffer(fd, (char *)ls_output.data);
1325 free(ls_output.data);
1326 }
1327 return ret;
1328 }
1329
1330 /**
1331 * Call the given function for each file in the audio file table.
1332 *
1333 * \param private_data An arbitrary data pointer, passed to \a func.
1334 * \param func The custom function to be called.
1335 *
1336 * \return The return value of the underlying call to osl_rbtree_loop().
1337 */
1338 int audio_file_loop(void *private_data, osl_rbtree_loop_func *func)
1339 {
1340 return osl_rbtree_loop(audio_file_table, AFTCOL_HASH, private_data,
1341 func);
1342 }
1343
1344 static struct osl_row *find_hash_sister(HASH_TYPE *hash)
1345 {
1346 const struct osl_object obj = {.data = hash, .size = HASH_SIZE};
1347 struct osl_row *row;
1348
1349 osl_get_row(audio_file_table, AFTCOL_HASH, &obj, &row);
1350 return row;
1351 }
1352
1353 enum aft_row_offsets {
1354 AFTROW_AFHI_OFFSET_POS = 0,
1355 AFTROW_CHUNKS_OFFSET_POS = 2,
1356 AFTROW_AUDIO_FORMAT_OFFSET = 4,
1357 AFTROW_FLAGS_OFFSET = 5,
1358 AFTROW_HASH_OFFSET = 9,
1359 AFTROW_PATH_OFFSET = (AFTROW_HASH_OFFSET + HASH_SIZE),
1360 };
1361
1362 /* never save the afsi, as the server knows it too. Note that afhi might be NULL.
1363 * In this case, afhi won't be stored in the buffer */
1364 static void save_audio_file_info(HASH_TYPE *hash, const char *path,
1365 struct afh_info *afhi, uint32_t flags,
1366 uint8_t audio_format_num, struct osl_object *obj)
1367 {
1368 size_t path_len = strlen(path) + 1;
1369 size_t afhi_size = sizeof_afhi_buf(afhi);
1370 size_t size = AFTROW_PATH_OFFSET + path_len + afhi_size
1371 + sizeof_chunk_info_buf(afhi);
1372 char *buf = para_malloc(size);
1373 uint16_t pos;
1374
1375 write_u8(buf + AFTROW_AUDIO_FORMAT_OFFSET, audio_format_num);
1376 write_u32(buf + AFTROW_FLAGS_OFFSET, flags);
1377
1378 memcpy(buf + AFTROW_HASH_OFFSET, hash, HASH_SIZE);
1379 strcpy(buf + AFTROW_PATH_OFFSET, path);
1380
1381 pos = AFTROW_PATH_OFFSET + path_len;
1382 PARA_DEBUG_LOG("size: %zu, afhi starts at %d\n", size, pos);
1383 PARA_DEBUG_LOG("last afhi byte: %p, pos %zu\n", buf + pos + afhi_size - 1,
1384 pos + afhi_size - 1);
1385 write_u16(buf + AFTROW_AFHI_OFFSET_POS, pos);
1386 save_afhi(afhi, buf + pos);
1387
1388 pos += afhi_size;
1389 PARA_DEBUG_LOG("size: %zu, chunks start at %d\n", size, pos);
1390 write_u16(buf + AFTROW_CHUNKS_OFFSET_POS, pos);
1391 save_chunk_info(afhi, buf + pos);
1392 PARA_DEBUG_LOG("last byte in buf: %p\n", buf + size - 1);
1393 obj->data = buf;
1394 obj->size = size;
1395 }
1396
1397 /*
1398 input:
1399 ~~~~~~
1400 HS: hash sister
1401 PB: path brother
1402 F: force flag given
1403
1404 output:
1405 ~~~~~~~
1406 AFHI: whether afhi and chunk table are computed and sent
1407 ACTION: table modifications to be performed
1408
1409 +---+----+-----+------+---------------------------------------------------+
1410 | HS | PB | F | AFHI | ACTION
1411 +---+----+-----+------+---------------------------------------------------+
1412 | Y | Y | Y | Y | if HS != PB: remove PB. HS: force afhi update,
1413 | | update path, keep afsi
1414 +---+----+-----+------+---------------------------------------------------+
1415 | Y | Y | N | N | if HS == PB: do not send callback request at all.
1416 | | otherwise: remove PB, HS: update path, keep afhi,
1417 | | afsi.
1418 +---+----+-----+------+---------------------------------------------------+
1419 | Y | N | Y | Y | (rename) force afhi update of HS, update path of
1420 | | HS, keep afsi
1421 +---+----+-----+------+---------------------------------------------------+
1422 | Y | N | N | N | (file rename) update path of HS, keep afsi, afhi
1423 +---+----+-----+------+---------------------------------------------------+
1424 | N | Y | Y | Y | (file change) update afhi, hash, of PB, keep afsi
1425 | | (force has no effect)
1426 +---+----+-----+------+---------------------------------------------------+
1427 | N | Y | N | Y | (file change) update afhi, hash of PB, keep afsi
1428 +---+----+-----+------+---------------------------------------------------+
1429 | N | N | Y | Y | (new file) create new entry (force has no effect)
1430 +---+----+-----+------+---------------------------------------------------+
1431 | N | N | N | Y | (new file) create new entry
1432 +---+----+-----+------+---------------------------------------------------+
1433
1434 afhi <=> force or no HS
1435
1436 */
1437
1438 /** Flags passed to the add command. */
1439 enum com_add_flags {
1440 /** Skip paths that exist already. */
1441 ADD_FLAG_LAZY = 1,
1442 /** Force adding. */
1443 ADD_FLAG_FORCE = 2,
1444 /** Print what is being done. */
1445 ADD_FLAG_VERBOSE = 4,
1446 /** Try to add files with unknown suffixes. */
1447 ADD_FLAG_ALL = 8,
1448 };
1449
1450 static int com_add_callback(const struct osl_object *query,
1451 struct osl_object *result)
1452 {
1453 char *buf = query->data, *path;
1454 struct osl_row *pb, *aft_row;
1455 struct osl_row *hs;
1456 struct osl_object objs[NUM_AFT_COLUMNS];
1457 HASH_TYPE *hash;
1458 char asc[2 * HASH_SIZE + 1];
1459 int ret;
1460 char afsi_buf[AFSI_SIZE];
1461 uint32_t flags = read_u32(buf + AFTROW_FLAGS_OFFSET);
1462 struct afs_info default_afsi = {.last_played = 0};
1463 struct para_buffer msg = {.buf = NULL};
1464
1465 hash = (HASH_TYPE *)buf + AFTROW_HASH_OFFSET;
1466 hash_to_asc(hash, asc);;
1467 objs[AFTCOL_HASH].data = buf + AFTROW_HASH_OFFSET;
1468 objs[AFTCOL_HASH].size = HASH_SIZE;
1469
1470 path = buf + AFTROW_PATH_OFFSET;
1471 objs[AFTCOL_PATH].data = path;
1472 objs[AFTCOL_PATH].size = strlen(path) + 1;
1473
1474 PARA_INFO_LOG("request to add %s\n", path);
1475 hs = find_hash_sister(hash);
1476 ret = aft_get_row_of_path(path, &pb);
1477 if (ret < 0 && ret != -E_RB_KEY_NOT_FOUND)
1478 return ret;
1479 if (hs && pb && hs == pb && !(flags & ADD_FLAG_FORCE)) {
1480 if (flags & ADD_FLAG_VERBOSE)
1481 para_printf(&msg, "ignoring duplicate\n");
1482 ret = 1;
1483 goto out;
1484 }
1485 if (hs && hs != pb) {
1486 struct osl_object obj;
1487 if (pb) { /* hs trumps pb, remove pb */
1488 if (flags & ADD_FLAG_VERBOSE)
1489 para_printf(&msg, "removing path brother\n");
1490 ret = osl_del_row(audio_file_table, pb);
1491 if (ret < 0)
1492 goto out;
1493 pb = NULL;
1494 }
1495 /* file rename, update hs' path */
1496 if (flags & ADD_FLAG_VERBOSE) {
1497 ret = osl_get_object(audio_file_table, hs,
1498 AFTCOL_PATH, &obj);
1499 if (ret < 0)
1500 goto out;
1501 para_printf(&msg, "renamed from %s\n", (char *)obj.data);
1502 }
1503 ret = osl_update_object(audio_file_table, hs, AFTCOL_PATH,
1504 &objs[AFTCOL_PATH]);
1505 if (ret < 0)
1506 goto out;
1507 afs_event(AUDIO_FILE_RENAME, &msg, hs);
1508 if (!(flags & ADD_FLAG_FORCE))
1509 goto out;
1510 }
1511 /* no hs or force mode, child must have sent afhi */
1512 uint16_t afhi_offset = read_u16(buf + AFTROW_AFHI_OFFSET_POS);
1513 uint16_t chunks_offset = read_u16(buf + AFTROW_CHUNKS_OFFSET_POS);
1514
1515 objs[AFTCOL_AFHI].data = buf + afhi_offset;
1516 objs[AFTCOL_AFHI].size = chunks_offset - afhi_offset;
1517 ret = -E_NO_AFHI;
1518 if (!objs[AFTCOL_AFHI].size) /* "impossible" */
1519 goto out;
1520 objs[AFTCOL_CHUNKS].data = buf + chunks_offset;
1521 objs[AFTCOL_CHUNKS].size = query->size - chunks_offset;
1522 if (pb && !hs) { /* update pb's hash */
1523 char old_asc[2 * HASH_SIZE + 1];
1524 HASH_TYPE *old_hash;
1525 ret = get_hash_of_row(pb, &old_hash);
1526 if (ret < 0)
1527 goto out;
1528 hash_to_asc(old_hash, old_asc);
1529 if (flags & ADD_FLAG_VERBOSE)
1530 para_printf(&msg, "file change: %s -> %s\n",
1531 old_asc, asc);
1532 ret = osl_update_object(audio_file_table, pb, AFTCOL_HASH,
1533 &objs[AFTCOL_HASH]);
1534 if (ret < 0)
1535 goto out;
1536 }
1537 if (hs || pb) { /* (hs != NULL and pb != NULL) implies hs == pb */
1538 struct osl_row *row = pb? pb : hs;
1539 /* update afhi and chunk_table */
1540 if (flags & ADD_FLAG_VERBOSE)
1541 para_printf(&msg, "updating afhi and chunk table\n");
1542 ret = osl_update_object(audio_file_table, row, AFTCOL_AFHI,
1543 &objs[AFTCOL_AFHI]);
1544 if (ret < 0)
1545 goto out;
1546 ret = osl_update_object(audio_file_table, row, AFTCOL_CHUNKS,
1547 &objs[AFTCOL_CHUNKS]);
1548 if (ret < 0)
1549 goto out;
1550 afs_event(AFHI_CHANGE, &msg, row);
1551 goto out;
1552 }
1553 /* new entry, use default afsi */
1554 if (flags & ADD_FLAG_VERBOSE)
1555 para_printf(&msg, "new file\n");
1556 default_afsi.last_played = time(NULL) - 365 * 24 * 60 * 60;
1557 default_afsi.audio_format_id = read_u8(buf + AFTROW_AUDIO_FORMAT_OFFSET);
1558
1559 objs[AFTCOL_AFSI].data = &afsi_buf;
1560 objs[AFTCOL_AFSI].size = AFSI_SIZE;
1561 save_afsi(&default_afsi, &objs[AFTCOL_AFSI]);
1562 ret = osl_add_and_get_row(audio_file_table, objs, &aft_row);
1563 out:
1564 if (ret < 0)
1565 para_printf(&msg, "%s\n", PARA_STRERROR(-ret));
1566 if (!msg.buf)
1567 return 0;
1568 result->data = msg.buf;
1569 result->size = msg.size;
1570 afs_event(AUDIO_FILE_ADD, &msg, aft_row);
1571 return 1;
1572 }
1573
1574 struct private_add_data {
1575 int fd;
1576 uint32_t flags;
1577 };
1578
1579 static int path_brother_callback(const struct osl_object *query,
1580 struct osl_object *result)
1581 {
1582 char *path = query->data;
1583 struct osl_row *path_brother;
1584 int ret = aft_get_row_of_path(path, &path_brother);
1585 if (ret < 0)
1586 return ret;
1587 result->data = para_malloc(sizeof(path_brother));
1588 result->size = sizeof(path_brother);
1589 *(struct osl_row **)(result->data) = path_brother;
1590 return 1;
1591 }
1592
1593 static int hash_sister_callback(const struct osl_object *query,
1594 struct osl_object *result)
1595 {
1596 HASH_TYPE *hash = query->data;
1597 struct osl_row *hash_sister;
1598
1599 hash_sister = find_hash_sister(hash);
1600 if (!hash_sister)
1601 return -E_RB_KEY_NOT_FOUND;
1602 result->data = para_malloc(sizeof(hash_sister));
1603 result->size = sizeof(hash_sister);
1604 *(struct osl_row **)(result->data) = hash_sister;
1605 return 1;
1606 }
1607
1608 static int add_one_audio_file(const char *path, const void *private_data)
1609 {
1610 int ret, ret2;
1611 uint8_t format_num = -1;
1612 const struct private_add_data *pad = private_data;
1613 struct afh_info afhi, *afhi_ptr = NULL;
1614 struct osl_row *pb = NULL, *hs = NULL; /* path brother/hash sister */
1615 struct osl_object map, obj = {.data = NULL}, query, result = {.data = NULL};
1616 HASH_TYPE hash[HASH_SIZE];
1617
1618 afhi.header_offset = 0;
1619 afhi.header_len = 0;
1620 ret = guess_audio_format(path);
1621 if (ret < 0 && !(pad->flags & ADD_FLAG_ALL))
1622 goto out_free;
1623 query.data = (char *)path;
1624 query.size = strlen(path) + 1;
1625 ret = send_callback_request(path_brother_callback, &query, &result);
1626 if (ret < 0 && ret != -E_RB_KEY_NOT_FOUND)
1627 goto out_free;
1628 if (ret >= 0) {
1629 pb = *(struct osl_row **)result.data;
1630 free(result.data);
1631 }
1632 ret = 1;
1633 if (pb && (pad->flags & ADD_FLAG_LAZY)) { /* lazy is really cheap */
1634 if (pad->flags & ADD_FLAG_VERBOSE)
1635 ret = send_va_buffer(pad->fd, "lazy-ignore: %s\n", path);
1636 goto out_free;
1637 }
1638 /* We still want to add this file. Compute its hash. */
1639 ret = mmap_full_file(path, O_RDONLY, &map.data, &map.size, NULL);
1640 if (ret < 0)
1641 goto out_free;
1642 hash_function(map.data, map.size, hash);
1643
1644 /* Check whether database contains file with the same hash. */
1645 query.data = hash;
1646 query.size = HASH_SIZE;
1647 ret = send_callback_request(hash_sister_callback, &query, &result);
1648 if (ret < 0 && ret != -E_RB_KEY_NOT_FOUND)
1649 goto out_free;
1650 if (ret >= 0) {
1651 hs = *(struct osl_row **)result.data;
1652 free(result.data);
1653 }
1654 /* Return success if we already know this file. */
1655 ret = 1;
1656 if (pb && hs && hs == pb && (!(pad->flags & ADD_FLAG_FORCE))) {
1657 if (pad->flags & ADD_FLAG_VERBOSE)
1658 ret = send_va_buffer(pad->fd,
1659 "%s exists, not forcing update\n", path);
1660 goto out_unmap;
1661 }
1662 /*
1663 * we won't recalculate the audio format info and the chunk table if
1664 * there is a hash sister unless in FORCE mode.
1665 */
1666 if (!hs || (pad->flags & ADD_FLAG_FORCE)) {
1667 ret = compute_afhi(path, map.data, map.size, &afhi);
1668 if (ret < 0)
1669 goto out_unmap;
1670 format_num = ret;
1671 afhi_ptr = &afhi;
1672 }
1673 if (pad->flags & ADD_FLAG_VERBOSE) {
1674 ret = send_va_buffer(pad->fd, "adding %s\n", path);
1675 if (ret < 0)
1676 goto out_unmap;
1677 }
1678 munmap(map.data, map.size);
1679 save_audio_file_info(hash, path, afhi_ptr, pad->flags, format_num, &obj);
1680 /* Ask afs to consider this entry for adding. */
1681 ret = send_callback_request(com_add_callback, &obj, &result);
1682 if (ret >= 0 && result.data && result.size) {
1683 ret2 = send_va_buffer(pad->fd, "%s", (char *)result.data);
1684 free(result.data);
1685 if (ret >= 0 && ret2 < 0)
1686 ret = ret2;
1687 }
1688 goto out_free;
1689
1690 out_unmap:
1691 munmap(map.data, map.size);
1692 out_free:
1693 if (ret < 0 && ret != -E_SEND)
1694 send_va_buffer(pad->fd, "failed to add %s (%s)\n", path,
1695 PARA_STRERROR(-ret));
1696 free(obj.data);
1697 if (afhi_ptr)
1698 free(afhi_ptr->chunk_table);
1699 /* it's not an error if not all files could be added */
1700 return ret == -E_SEND? ret : 1;
1701 }
1702
1703 int com_add(int fd, int argc, char * const * const argv)
1704 {
1705 int i, ret;
1706 struct private_add_data pad = {.fd = fd, .flags = 0};
1707 struct stat statbuf;
1708
1709 for (i = 1; i < argc; i++) {
1710 const char *arg = argv[i];
1711 if (arg[0] != '-')
1712 break;
1713 if (!strcmp(arg, "--")) {
1714 i++;
1715 break;
1716 }
1717 if (!strcmp(arg, "-a")) {
1718 pad.flags |= ADD_FLAG_ALL;
1719 continue;
1720 }
1721 if (!strcmp(arg, "-l")) {
1722 pad.flags |= ADD_FLAG_LAZY;
1723 continue;
1724 }
1725 if (!strcmp(arg, "-f")) {
1726 pad.flags |= ADD_FLAG_FORCE;
1727 continue;
1728 }
1729 if (!strcmp(arg, "-v")) {
1730 pad.flags |= ADD_FLAG_VERBOSE;
1731 continue;
1732 }
1733 }
1734 if (argc <= i)
1735 return -E_AFT_SYNTAX;
1736 for (; i < argc; i++) {
1737 char *path;
1738 ret = verify_path(argv[i], &path);
1739 if (ret < 0) {
1740 ret = send_va_buffer(fd, "%s: %s\n", argv[i], PARA_STRERROR(-ret));
1741 if (ret < 0)
1742 return ret;
1743 continue;
1744 }
1745 ret = stat(path, &statbuf);
1746 if (ret < 0) {
1747 ret = send_va_buffer(fd, "failed to stat %s (%s)\n", path,
1748 strerror(errno));
1749 free(path);
1750 if (ret < 0)
1751 return ret;
1752 continue;
1753 }
1754 if (S_ISDIR(statbuf.st_mode))
1755 ret = for_each_file_in_dir(path, add_one_audio_file,
1756 &pad);
1757 else
1758 ret = add_one_audio_file(path, &pad);
1759 if (ret < 0) {
1760 send_va_buffer(fd, "%s: %s\n", path, PARA_STRERROR(-ret));
1761 free(path);
1762 return ret;
1763 }
1764 free(path);
1765 }
1766 return 1;
1767
1768 }
1769
1770 /**
1771 * Flags used by the touch command.
1772 *
1773 * \sa com_touch().
1774 */
1775 enum touch_flags {
1776 /** Whether the \p FNM_PATHNAME flag should be passed to fnmatch(). */
1777 TOUCH_FLAG_FNM_PATHNAME = 1,
1778 /** Activates verbose mode. */
1779 TOUCH_FLAG_VERBOSE = 2
1780 };
1781
1782 struct com_touch_options {
1783 int32_t num_played;
1784 int64_t last_played;
1785 int32_t lyrics_id;
1786 int32_t image_id;
1787 unsigned flags;
1788 };
1789
1790 struct touch_action_data {
1791 struct com_touch_options *cto;
1792 struct para_buffer pb;
1793 };
1794
1795 static int touch_audio_file(__a_unused struct osl_table *table,
1796 struct osl_row *row, const char *name, void *data)
1797 {
1798 struct touch_action_data *tad = data;
1799 struct osl_object obj;
1800 struct afs_info old_afsi, new_afsi;
1801 int ret, no_options = tad->cto->num_played < 0 && tad->cto->last_played < 0 &&
1802 tad->cto->lyrics_id < 0 && tad->cto->image_id < 0;
1803 struct afsi_change_event_data aced;
1804
1805 ret = get_afsi_object_of_row(row, &obj);
1806 if (ret < 0) {
1807 para_printf(&tad->pb, "%s: %s\n", name, PARA_STRERROR(-ret));
1808 return 1;
1809 }
1810 ret = load_afsi(&old_afsi, &obj);
1811 if (ret < 0) {
1812 para_printf(&tad->pb, "%s: %s\n", name, PARA_STRERROR(-ret));
1813 return 1;
1814 }
1815 new_afsi = old_afsi;
1816 if (no_options) {
1817 new_afsi.num_played++;
1818 new_afsi.last_played = time(NULL);
1819 if (tad->cto->flags & TOUCH_FLAG_VERBOSE)
1820 para_printf(&tad->pb, "%s: num_played = %u, "
1821 "last_played = now()\n", name,
1822 new_afsi.num_played);
1823 } else {
1824 if (tad->cto->flags & TOUCH_FLAG_VERBOSE)
1825 para_printf(&tad->pb, "touching %s\n", name);
1826 if (tad->cto->lyrics_id >= 0)
1827 new_afsi.lyrics_id = tad->cto->lyrics_id;
1828 if (tad->cto->image_id >= 0)
1829 new_afsi.image_id = tad->cto->image_id;
1830 if (tad->cto->num_played >= 0)
1831 new_afsi.num_played = tad->cto->num_played;
1832 if (tad->cto->last_played >= 0)
1833 new_afsi.last_played = tad->cto->last_played;
1834 }
1835 save_afsi(&new_afsi, &obj); /* in-place update */
1836 aced.aft_row = row;
1837 aced.old_afsi = &old_afsi;
1838 afs_event(AFSI_CHANGE, &tad->pb, &aced);
1839 return 1;
1840 }
1841
1842 static int com_touch_callback(const struct osl_object *query,
1843 struct osl_object *result)
1844 {
1845 struct touch_action_data tad = {.cto = query->data};
1846 int ret;
1847 struct pattern_match_data pmd = {
1848 .table = audio_file_table,
1849 .loop_col_num = AFTCOL_HASH,
1850 .match_col_num = AFTCOL_PATH,
1851 .patterns = {.data = (char *)query->data + sizeof(*tad.cto),
1852 .size = query->size - sizeof(*tad.cto)},
1853 .data = &tad,
1854 .action = touch_audio_file
1855 };
1856 if (tad.cto->flags & TOUCH_FLAG_FNM_PATHNAME)
1857 pmd.fnmatch_flags |= FNM_PATHNAME;
1858 ret = for_each_matching_row(&pmd);
1859 if (ret < 0)
1860 para_printf(&tad.pb, "%s\n", PARA_STRERROR(-ret));
1861 if (tad.pb.buf) {
1862 result->data = tad.pb.buf;
1863 result->size = tad.pb.size;
1864 return 1;
1865 }
1866 return ret < 0? ret : 0;
1867 }
1868
1869 int com_touch(int fd, int argc, char * const * const argv)
1870 {
1871 struct com_touch_options cto = {
1872 .num_played = -1,
1873 .last_played = -1,
1874 .lyrics_id = -1,
1875 .image_id = -1
1876 };
1877 struct osl_object query = {.data = &cto, .size = sizeof(cto)},
1878 result;
1879 int i, ret;
1880
1881
1882 for (i = 1; i < argc; i++) {
1883 const char *arg = argv[i];
1884 if (arg[0] != '-')
1885 break;
1886 if (!strcmp(arg, "--")) {
1887 i++;
1888 break;
1889 }
1890 if (!strncmp(arg, "-n", 2)) {
1891 ret = para_atoi32(arg + 2, &cto.num_played);
1892 if (ret < 0)
1893 return ret;
1894 continue;
1895 }
1896 if (!strncmp(arg, "-l", 2)) {
1897 ret = para_atoi64(arg + 2, &cto.last_played);
1898 if (ret < 0)
1899 return ret;
1900 continue;
1901 }
1902 if (!strncmp(arg, "-y", 2)) {
1903 ret = para_atoi32(arg + 2, &cto.lyrics_id);
1904 if (ret < 0)
1905 return ret;
1906 continue;
1907 }
1908 if (!strncmp(arg, "-i", 2)) {
1909 ret = para_atoi32(arg + 2, &cto.image_id);
1910 if (ret < 0)
1911 return ret;
1912 continue;
1913 }
1914 if (!strcmp(arg, "-p")) {
1915 cto.flags |= TOUCH_FLAG_FNM_PATHNAME;
1916 continue;
1917 }
1918 if (!strcmp(arg, "-v")) {
1919 cto.flags |= TOUCH_FLAG_VERBOSE;
1920 continue;
1921 }
1922 break; /* non-option starting with dash */
1923 }
1924 if (i >= argc)
1925 return -E_AFT_SYNTAX;
1926 ret = send_option_arg_callback_request(&query, argc - i,
1927 argv + i, com_touch_callback, &result);
1928 if (ret > 0) {
1929 send_buffer(fd, (char *)result.data);
1930 free(result.data);
1931 } else if (ret < 0)
1932 send_va_buffer(fd, "%s\n", PARA_STRERROR(-ret));
1933 return ret;
1934 }
1935
1936 enum rm_flags {
1937 RM_FLAG_VERBOSE = 1,
1938 RM_FLAG_FORCE = 2,
1939 RM_FLAG_FNM_PATHNAME = 4
1940 };
1941
1942 struct com_rm_data {
1943 uint32_t flags;
1944 struct para_buffer pb;
1945 unsigned num_removed;
1946 };
1947
1948 static int remove_audio_file(__a_unused struct osl_table *table,
1949 struct osl_row *row, const char *name, void *data)
1950 {
1951 struct com_rm_data *crd = data;
1952 int ret;
1953
1954 if (crd->flags & RM_FLAG_VERBOSE)
1955 para_printf(&crd->pb, "removing %s\n", name);
1956 afs_event(AUDIO_FILE_REMOVE, &crd->pb, row);
1957 ret = osl_del_row(audio_file_table, row);
1958 if (ret < 0)
1959 para_printf(&crd->pb, "%s: %s\n", name, PARA_STRERROR(-ret));
1960 else
1961 crd->num_removed++;
1962 return 1;
1963 }
1964
1965 static int com_rm_callback(const struct osl_object *query,
1966 __a_unused struct osl_object *result)
1967 {
1968 struct com_rm_data crd = {.flags = *(uint32_t *)query->data};
1969 int ret;
1970 struct pattern_match_data pmd = {
1971 .table = audio_file_table,
1972 .loop_col_num = AFTCOL_HASH,
1973 .match_col_num = AFTCOL_PATH,
1974 .patterns = {.data = (char *)query->data + sizeof(uint32_t),
1975 .size = query->size - sizeof(uint32_t)},
1976 .data = &crd,
1977 .action = remove_audio_file
1978 };
1979 if (crd.flags & RM_FLAG_FNM_PATHNAME)
1980 pmd.fnmatch_flags |= FNM_PATHNAME;
1981 ret = for_each_matching_row(&pmd);
1982 if (ret < 0)
1983 para_printf(&crd.pb, "%s\n", PARA_STRERROR(-ret));
1984 if (!crd.num_removed && !(crd.flags & RM_FLAG_FORCE))
1985 para_printf(&crd.pb, "no matches -- nothing removed\n");
1986 else {
1987 if (crd.flags & RM_FLAG_VERBOSE)
1988 para_printf(&crd.pb, "removed %u files\n", crd.num_removed);
1989 }
1990 if (crd.pb.buf) {
1991 result->data = crd.pb.buf;
1992 result->size = crd.pb.size;
1993 return 1;
1994 }
1995 return ret < 0? ret : 0;
1996 }
1997
1998 /* TODO options: -r (recursive) */
1999 int com_rm(int fd, int argc, char * const * const argv)
2000 {
2001 uint32_t flags = 0;
2002 struct osl_object query = {.data = &flags, .size = sizeof(flags)},
2003 result;
2004 int i, ret;
2005
2006 for (i = 1; i < argc; i++) {
2007 const char *arg = argv[i];
2008 if (arg[0] != '-')
2009 break;
2010 if (!strcmp(arg, "--")) {
2011 i++;
2012 break;
2013 }
2014 if (!strcmp(arg, "-f")) {
2015 flags |= RM_FLAG_FORCE;
2016 continue;
2017 }
2018 if (!strcmp(arg, "-p")) {
2019 flags |= RM_FLAG_FNM_PATHNAME;
2020 continue;
2021 }
2022 if (!strcmp(arg, "-v")) {
2023 flags |= RM_FLAG_VERBOSE;
2024 continue;
2025 }
2026 break;
2027 }
2028 if (i >= argc)
2029 return -E_AFT_SYNTAX;
2030 ret = send_option_arg_callback_request(&query, argc - i, argv + i,
2031 com_rm_callback, &result);
2032 if (ret > 0) {
2033 send_buffer(fd, (char *)result.data);
2034 free(result.data);
2035 } else if (ret < 0)
2036 send_va_buffer(fd, "%s\n", PARA_STRERROR(-ret));
2037 return ret;
2038 }
2039
2040 /**
2041 * Flags used by the cpsi command.
2042 *
2043 * \sa com_cpsi().
2044 */
2045 enum cpsi_flags {
2046 /** Whether the lyrics id should be copied. */
2047 CPSI_FLAG_COPY_LYRICS_ID = 1,
2048 /** Whether the image id should be copied. */
2049 CPSI_FLAG_COPY_IMAGE_ID = 2,
2050 /** Whether the lastplayed time should be copied. */
2051 CPSI_FLAG_COPY_LASTPLAYED = 4,
2052 /** Whether the numplayed count should be copied. */
2053 CPSI_FLAG_COPY_NUMPLAYED = 8,
2054 /** Whether the attributes should be copied. */
2055 CPSI_FLAG_COPY_ATTRIBUTES = 16,
2056 /** Activates verbose mode. */
2057 CPSI_FLAG_VERBOSE = 32,
2058 };
2059
2060 struct cpsi_action_data {
2061 unsigned flags;
2062 unsigned num_copied;
2063 struct para_buffer pb;
2064 struct afs_info source_afsi;
2065 };
2066
2067 static int copy_selector_info(__a_unused struct osl_table *table,
2068 struct osl_row *row, const char *name, void *data)
2069 {
2070 struct cpsi_action_data *cad = data;
2071 struct osl_object target_afsi_obj;
2072 int ret;
2073 struct afs_info old_afsi, target_afsi;
2074 struct afsi_change_event_data aced;
2075
2076 ret = get_afsi_object_of_row(row, &target_afsi_obj);
2077 if (ret < 0)
2078 return ret;
2079 load_afsi(&target_afsi, &target_afsi_obj);
2080 old_afsi = target_afsi;
2081 if (cad->flags & CPSI_FLAG_COPY_LYRICS_ID)
2082 target_afsi.lyrics_id = cad->source_afsi.lyrics_id;
2083 if (cad->flags & CPSI_FLAG_COPY_IMAGE_ID)
2084 target_afsi.image_id = cad->source_afsi.image_id;
2085 if (cad->flags & CPSI_FLAG_COPY_LASTPLAYED)
2086 target_afsi.last_played = cad->source_afsi.last_played;
2087 if (cad->flags & CPSI_FLAG_COPY_NUMPLAYED)
2088 target_afsi.num_played = cad->source_afsi.num_played;
2089 if (cad->flags & CPSI_FLAG_COPY_ATTRIBUTES)
2090 target_afsi.attributes = cad->source_afsi.attributes;
2091 save_afsi(&target_afsi, &target_afsi_obj); /* in-place update */
2092 cad->num_copied++;
2093 if (cad->flags & CPSI_FLAG_VERBOSE)
2094 para_printf(&cad->pb, "copied afsi to %s\n", name);
2095 aced.aft_row = row;
2096 aced.old_afsi = &old_afsi;
2097 afs_event(AFSI_CHANGE, &cad->pb, &aced);
2098 return 1;
2099 }
2100
2101 static int com_cpsi_callback(const struct osl_object *query,
2102 struct osl_object *result)
2103 {
2104 struct cpsi_action_data cad = {.flags = *(unsigned *)query->data};
2105 int ret;
2106 char *source_path = (char *)query->data + sizeof(cad.flags);
2107
2108 ret = get_afsi_of_path(source_path, &cad.source_afsi);
2109 if (ret < 0)
2110 goto out;
2111 struct pattern_match_data pmd = {
2112 .table = audio_file_table,
2113 .loop_col_num = AFTCOL_HASH,
2114 .match_col_num = AFTCOL_PATH,
2115 .patterns = {.data = source_path + strlen(source_path) + 1,
2116 .size = query->size - sizeof(cad.flags)
2117 - strlen(source_path) - 1},
2118 .data = &cad,
2119 .action = copy_selector_info
2120 };
2121 ret = for_each_matching_row(&pmd);
2122 out:
2123 if (ret < 0)
2124 para_printf(&cad.pb, "%s\n", PARA_STRERROR(-ret));
2125 if (cad.flags & CPSI_FLAG_VERBOSE) {
2126 if (cad.num_copied)
2127 para_printf(&cad.pb, "copied requested afsi from %s "
2128 "to %u files\n",
2129 source_path, cad.num_copied);
2130 else
2131 para_printf(&cad.pb, "nothing copied\n");
2132 }
2133 if (cad.pb.buf) {
2134 result->data = cad.pb.buf;
2135 result->size = cad.pb.size;
2136 return 1;
2137 }
2138 return ret < 0? ret : 0;
2139 }
2140
2141 int com_cpsi(int fd, int argc, char * const * const argv)
2142 {
2143 unsigned flags = 0;
2144 int i, ret;
2145 struct osl_object options = {.data = &flags, .size = sizeof(flags)},
2146 result;
2147
2148 for (i = 1; i < argc; i++) {
2149 const char *arg = argv[i];
2150 if (arg[0] != '-')
2151 break;
2152 if (!strcmp(arg, "--")) {
2153 i++;
2154 break;
2155 }
2156 if (!strcmp(arg, "-y")) {
2157 flags |= CPSI_FLAG_COPY_LYRICS_ID;
2158 continue;
2159 }
2160 if (!strcmp(arg, "-i")) {
2161 flags |= CPSI_FLAG_COPY_IMAGE_ID;
2162 continue;
2163 }
2164 if (!strcmp(arg, "-l")) {
2165 flags |= CPSI_FLAG_COPY_LASTPLAYED;
2166 continue;
2167 }
2168 if (!strcmp(arg, "-n")) {
2169 flags |= CPSI_FLAG_COPY_NUMPLAYED;
2170 continue;
2171 }
2172 if (!strcmp(arg, "-a")) {
2173 flags |= CPSI_FLAG_COPY_ATTRIBUTES;
2174 continue;
2175 }
2176 if (!strcmp(arg, "-v")) {
2177 flags |= CPSI_FLAG_VERBOSE;
2178 continue;
2179 }
2180 break;
2181 }
2182 if (i + 1 >= argc) /* need at least souce file and pattern */
2183 return -E_AFT_SYNTAX;
2184 if (!(flags & ~CPSI_FLAG_VERBOSE)) /* no copy flags given */
2185 flags = ~(unsigned)CPSI_FLAG_VERBOSE | flags;
2186 ret = send_option_arg_callback_request(&options, argc - i, argv + i,
2187 com_cpsi_callback, &result);
2188 if (ret > 0) {
2189 send_buffer(fd, (char *)result.data);
2190 free(result.data);
2191 } else
2192 send_va_buffer(fd, "%s\n", PARA_STRERROR(-ret));
2193 return ret;
2194 }
2195
2196 /* TODO: optionally fix problems by removing offending rows */
2197 static int check_audio_file(struct osl_row *row, void *data)
2198 {
2199 char *path;
2200 struct para_buffer *pb = data;
2201 struct stat statbuf;
2202 int ret = get_audio_file_path_of_row(row, &path);
2203 struct afs_info afsi;
2204 char *blob_name;
2205
2206 if (ret < 0) {
2207 para_printf(pb, "%s\n", PARA_STRERROR(-ret));
2208 return 1;
2209 }
2210 if (stat(path, &statbuf) < 0)
2211 para_printf(pb, "%s: stat error (%s)\n", path, strerror(errno));
2212 else {
2213 if (!S_ISREG(statbuf.st_mode))
2214 para_printf(pb, "%s: not a regular file\n", path);
2215 }
2216 ret = get_afsi_of_row(row, &afsi);
2217 if (ret < 0) {
2218 para_printf(pb, "%s: %s\n", path, PARA_STRERROR(-ret));
2219 return 1;
2220 }
2221 ret = lyr_get_name_by_id(afsi.lyrics_id, &blob_name);
2222 if (ret < 0)
2223 para_printf(pb, "%s lyrics id %u: %s\n", path, afsi.lyrics_id,
2224 PARA_STRERROR(-ret));
2225 ret = img_get_name_by_id(afsi.image_id, &blob_name);
2226 if (ret < 0)
2227 para_printf(pb, "%s image id %u: %s\n", path, afsi.image_id,
2228 PARA_STRERROR(-ret));
2229 return 1;
2230 }
2231
2232 /**
2233 * Check the audio file table for inconsistencies.
2234 *
2235 * \param query Unused.
2236 * \param result Contains message string upon return.
2237 *
2238 * This function always succeeds.
2239 *
2240 * \sa com_check().
2241 */
2242 int aft_check_callback(__a_unused const struct osl_object *query, struct osl_object *result)
2243 {
2244 struct para_buffer pb = {.buf = NULL};
2245
2246 para_printf(&pb, "checking audio file table...\n");
2247 audio_file_loop(&pb, check_audio_file);
2248 result->data = pb.buf;
2249 result->size = pb.size;
2250 return 1;
2251
2252 }
2253
2254 /**
2255 * Close the audio file table.
2256 *
2257 * \param flags Ususal flags that are passed to osl_close_table().
2258 *
2259 * \sa osl_close_table().
2260 */
2261 static void aft_close(void)
2262 {
2263 osl_close_table(audio_file_table, OSL_MARK_CLEAN);
2264 audio_file_table = NULL;
2265 }
2266
2267 /**
2268 * Open the audio file table.
2269 *
2270 * \param dir The database directory.
2271 *
2272 * \return Standard.
2273 *
2274 * \sa osl_open_table().
2275 */
2276 static int aft_open(const char *dir)
2277 {
2278 int ret;
2279
2280 audio_file_table_desc.dir = dir;
2281 ret = osl_open_table(&audio_file_table_desc, &audio_file_table);
2282 if (ret >= 0) {
2283 unsigned num;
2284 osl_get_num_rows(audio_file_table, &num);
2285 PARA_INFO_LOG("audio file table contains %d files\n", num);
2286 return ret;
2287 }
2288 PARA_INFO_LOG("failed to open audio file table\n");
2289 audio_file_table = NULL;
2290 if (ret >= 0 || is_errno(-ret, ENOENT))
2291 return 1;
2292 return ret;
2293 }
2294
2295 static int aft_create(const char *dir)
2296 {
2297 audio_file_table_desc.dir = dir;
2298 return osl_create_table(&audio_file_table_desc);
2299 }
2300
2301 static int clear_attribute(struct osl_row *row, void *data)
2302 {
2303 struct rmatt_event_data *red = data;
2304 struct afs_info afsi;
2305 struct osl_object obj;
2306 int ret = get_afsi_object_of_row(row, &obj);
2307 uint64_t mask = ~(1ULL << red->bitnum);
2308
2309 if (ret < 0)
2310 return ret;
2311 ret = load_afsi(&afsi, &obj);
2312 if (ret < 0)
2313 return ret;
2314 afsi.attributes &= mask;
2315 save_afsi(&afsi, &obj);
2316 return 1;
2317 }
2318
2319 static int aft_event_handler(enum afs_events event, struct para_buffer *pb,
2320 void *data)
2321 {
2322 switch(event) {
2323 case ATTRIBUTE_REMOVE: {
2324 const struct rmatt_event_data *red = data;
2325 para_printf(pb, "clearing attribute %s (bit %u) from all "
2326 "entries in the audio file table\n", red->name,
2327 red->bitnum);
2328 return audio_file_loop(data, clear_attribute);
2329 }
2330 default:
2331 return 1;
2332 }
2333 }
2334
2335 void aft_init(struct afs_table *t)
2336 {
2337 t->name = audio_file_table_desc.name;
2338 t->open = aft_open;
2339 t->close = aft_close;
2340 t->create = aft_create;
2341 t->event_handler = aft_event_handler;
2342 }