f81c48569d23a83c6e863f7b23e1d72e7f137926
[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 audio_format_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 audio_format_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 audio_format_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 audio_format_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 audio_format_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 audio_format_info *afhi, char *buf)
379 {
380 int i;
381
382 PARA_NOTICE_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 audio_format_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 audio_format_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 audio_format_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 * \return Positive on success, negative on errors.
528 */
529 int get_audio_file_path_of_row(const struct osl_row *row, char **path)
530 {
531 struct osl_object path_obj;
532 int ret = osl_get_object(audio_file_table, row, AFTCOL_PATH,
533 &path_obj);
534 if (ret < 0)
535 return ret;
536 *path = path_obj.data;
537 return 1;
538 }
539
540 /**
541 * Get the object containing the hash value of an audio file, given a row.
542 *
543 * \param row Pointer to a row of the audio file table.
544 * \param obj Result pointer.
545 *
546 * \return The return value of the underlying call to osl_get_object().
547 *
548 * \sa get_hash_of_row().
549 */
550 static int get_hash_object_of_aft_row(const struct osl_row *row, struct osl_object *obj)
551 {
552 return osl_get_object(audio_file_table, row, AFTCOL_HASH, obj);
553 }
554
555 /**
556 * Get the hash value of an audio file, given a row of the audio file table.
557 *
558 * \param row Pointer to a row of the audio file table.
559 * \param hash Result pointer.
560 *
561 * \a hash points to mapped data and must not be freed by the caller.
562 *
563 * \return The return value of the underlying call to
564 * get_hash_object_of_aft_row().
565 */
566 static int get_hash_of_row(const struct osl_row *row, HASH_TYPE **hash)
567 {
568 struct osl_object obj;
569 int ret = get_hash_object_of_aft_row(row, &obj);
570
571 if (ret < 0)
572 return ret;
573 *hash = obj.data;
574 return 1;
575 }
576
577 /**
578 * Get the audio format handler info, given a row of the audio file table.
579 *
580 * \param row Pointer to a row of the audio file table.
581 * \param afhi Result pointer.
582 *
583 * \return The return value of the underlying call to osl_get_object().
584 *
585 * \sa get_chunk_table_of_row().
586 */
587 int get_afhi_of_row(const struct osl_row *row, struct audio_format_info *afhi)
588 {
589 struct osl_object obj;
590 int ret = osl_get_object(audio_file_table, row, AFTCOL_AFHI,
591 &obj);
592 if (ret < 0)
593 return ret;
594 load_afhi(obj.data, afhi);
595 return 1;
596 }
597
598 /* returns shmid on success */
599 static int save_afd(struct audio_file_data *afd)
600 {
601 size_t path_size = strlen(afd->path) + 1;
602 size_t size = sizeof(*afd) + path_size
603 + 4 * (afd->afhi.chunks_total + 1);
604
605 PARA_NOTICE_LOG("size: %zu\n", size);
606 int shmid, ret = shm_new(size);
607 void *shm_afd;
608 char *buf;
609
610 if (ret < 0)
611 return ret;
612 shmid = ret;
613 ret = shm_attach(shmid, ATTACH_RW, &shm_afd);
614 if (ret < 0)
615 goto err;
616 *(struct audio_file_data *)shm_afd = *afd;
617 buf = shm_afd;
618 buf += sizeof(*afd);
619 strcpy(buf, afd->path);
620 buf += path_size;
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->path = para_strdup(buf);
642 buf += strlen(buf) + 1;
643 afd->afhi.chunk_table = para_malloc((afd->afhi.chunks_total + 1) * 4);
644 load_chunk_table(&afd->afhi, buf);
645 shm_detach(shm_afd);
646 return 1;
647 }
648
649 /**
650 * Mmap the given audio file and update statistics.
651 *
652 * \param aft_row Determines the audio file to be opened and updated.
653 * \param afd Result pointer.
654 *
655 * On success, the numplayed field of the audio file selector info is increased
656 * and the lastplayed time is set to the current time. Finally, the score of
657 * the audio file is updated.
658 *
659 * \return Positive on success, negative on errors.
660 */
661 int open_and_update_audio_file(struct osl_row *aft_row, struct audio_file_data *afd)
662 {
663 HASH_TYPE *aft_hash, file_hash[HASH_SIZE];
664 struct osl_object afsi_obj;
665 struct afs_info new_afsi;
666 int ret = get_hash_of_row(aft_row, &aft_hash);
667 struct afsi_change_event_data aced;
668 struct osl_object map, chunk_table_obj;
669 char *tmp;
670
671 if (ret < 0)
672 return ret;
673 ret = get_audio_file_path_of_row(aft_row, &afd->path);
674 if (ret < 0)
675 return ret;
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(afd->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 aced.aft_row = aft_row;
715 aced.old_afsi = &afd->afsi;
716 afs_event(AFSI_CHANGE, NULL, &aced);
717 ret = save_afd(afd);
718 if (ret < 0)
719 goto err;
720 free(afd->afhi.chunk_table);
721 err:
722 osl_close_disk_object(&chunk_table_obj);
723 return ret;
724 }
725
726 static int get_local_time(uint64_t *seconds, char *buf, size_t size,
727 time_t current_time, enum ls_listing_mode lm)
728 {
729 struct tm t;
730
731 if (!localtime_r((time_t *)seconds, &t))
732 return -E_LOCALTIME;
733 if (lm == LS_MODE_MBOX) {
734 if (!strftime(buf, size, "%c", &t))
735 return -E_STRFTIME;
736 return 1;
737 }
738 if (*seconds + 6 * 30 * 24 * 3600 > current_time) {
739 if (!strftime(buf, size, "%b %e %k:%M", &t))
740 return -E_STRFTIME;
741 return 1;
742 }
743 if (!strftime(buf, size, "%b %e %Y", &t))
744 return -E_STRFTIME;
745 return 1;
746 }
747
748 /** Compute the number of (decimal) digits of a number. */
749 #define GET_NUM_DIGITS(x, num) { \
750 typeof((x)) _tmp = PARA_ABS(x); \
751 *num = 1; \
752 if ((x)) \
753 while ((_tmp) > 9) { \
754 (_tmp) /= 10; \
755 (*num)++; \
756 } \
757 }
758
759 static short unsigned get_duration_width(int seconds)
760 {
761 short unsigned width;
762 unsigned hours = seconds / 3600, mins = (seconds % 3600) / 60;
763
764 if (!hours) /* less than one hour => m:ss or mm:ss => 4 or 5 digits */
765 return 4 + (mins > 9);
766 /* more than one hour => h:mm:ss, hh:mm:ss, hhh:mm:ss, ... */
767 GET_NUM_DIGITS(hours, &width);
768 return width + 6;
769 }
770
771 static void get_duration_buf(int seconds, char *buf, short unsigned max_width)
772 {
773 unsigned hours = seconds / 3600, mins = (seconds % 3600) / 60;
774
775 if (!hours) /* m:ss or mm:ss */
776 sprintf(buf, "%*u:%02u", max_width - 3, mins, seconds % 60);
777 else /* more than one hour => h:mm:ss, hh:mm:ss, hhh:mm:ss, ... */
778 sprintf(buf, "%*u:%02u:%02u", max_width - 6, hours, mins,
779 seconds % 60);
780 }
781
782 static char *make_attribute_line(const char *att_bitmap, struct afs_info *afsi)
783 {
784 char *att_text, *att_line;
785
786 get_attribute_text(&afsi->attributes, " ", &att_text);
787 if (!att_text)
788 return para_strdup(att_bitmap);
789 att_line = make_message("%s (%s)", att_bitmap, att_text);
790 free(att_text);
791 return att_line;
792 }
793
794 static char *make_lyrics_line(struct afs_info *afsi)
795 {
796 char *lyrics_name;
797
798 lyr_get_name_by_id(afsi->lyrics_id, &lyrics_name);
799 if (!lyrics_name)
800 return make_message("%u", afsi->lyrics_id);
801 return make_message("%u (%s)", afsi->lyrics_id, lyrics_name);
802 }
803
804 static char *make_image_line(struct afs_info *afsi)
805 {
806 char *image_name;
807 img_get_name_by_id(afsi->image_id, &image_name);
808 if (!image_name)
809 return make_message("%u", afsi->image_id);
810 return make_message("%u (%s)", afsi->image_id, image_name);
811 }
812
813 static int print_list_item(struct ls_data *d, struct ls_options *opts,
814 struct para_buffer *b, time_t current_time)
815 {
816 int ret;
817 char att_buf[65];
818 char last_played_time[30];
819 char duration_buf[30]; /* nobody has an audio file long enough to overflow this */
820 char score_buf[30] = "";
821 struct afs_info *afsi = &d->afsi;
822 struct audio_format_info *afhi = &d->afhi;
823 struct ls_widths *w = &opts->widths;
824 int have_score = opts->flags & LS_FLAG_ADMISSIBLE_ONLY;
825 char asc_hash[2 * HASH_SIZE + 1];
826 char *att_line, *lyrics_line, *image_line;
827
828 if (opts->mode == LS_MODE_SHORT) {
829 para_printf(b, "%s\n", d->path);
830 return 1;
831 }
832 get_attribute_bitmap(&afsi->attributes, att_buf);
833 ret = get_local_time(&afsi->last_played, last_played_time,
834 sizeof(last_played_time), current_time, opts->mode);
835 if (ret < 0)
836 return ret;
837 get_duration_buf(afhi->seconds_total, duration_buf, w->duration_width);
838 if (have_score) {
839 if (opts->mode == LS_MODE_LONG)
840 sprintf(score_buf, "%*li ", w->score_width, d->score);
841 else
842 sprintf(score_buf, "%li ", d->score);
843 }
844
845 if (opts->mode == LS_MODE_LONG) {
846 para_printf(b,
847 "%s" /* score */
848 "%s " /* attributes */
849 "%*d " /* image_id */
850 "%*d " /* lyrics_id */
851 "%*d " /* bitrate */
852 "%s " /* audio format */
853 "%*d " /* frequency */
854 "%d " /* channels */
855 "%s " /* duration */
856 "%*d " /* num_played */
857 "%s " /* last_played */
858 "%s\n", /* path */
859 score_buf,
860 att_buf,
861 w->image_id_width, afsi->image_id,
862 w->lyrics_id_width, afsi->lyrics_id,
863 w->bitrate_width, afhi->bitrate,
864 audio_format_name(afsi->audio_format_id),
865 w->frequency_width, afhi->frequency,
866 afhi->channels,
867 duration_buf,
868 w->num_played_width, afsi->num_played,
869 last_played_time,
870 d->path
871 );
872 return 1;
873 }
874 hash_to_asc(d->hash, asc_hash);
875 att_line = make_attribute_line(att_buf, afsi);
876 lyrics_line = make_lyrics_line(afsi);
877 image_line = make_image_line(afsi);
878 if (opts->mode == LS_MODE_VERBOSE) {
879
880 para_printf(b,
881 "%s: %s\n" /* path */
882 "%s%s%s" /* score */
883 "attributes: %s\n"
884 "hash: %s\n"
885 "image_id: %s\n"
886 "lyrics_id: %s\n"
887 "bitrate: %dkbit/s\n"
888 "format: %s\n"
889 "frequency: %dHz\n"
890 "channels: %d\n"
891 "duration: %s\n"
892 "num_played: %d\n"
893 "last_played: %s\n"
894 "tag info: %s\n",
895 (opts->flags & LS_FLAG_FULL_PATH)?
896 "path" : "file", d->path,
897 have_score? "score: " : "", score_buf,
898 have_score? "\n" : "",
899 att_line,
900 asc_hash,
901 image_line,
902 lyrics_line,
903 afhi->bitrate,
904 audio_format_name(afsi->audio_format_id),
905 afhi->frequency,
906 afhi->channels,
907 duration_buf,
908 afsi->num_played,
909 last_played_time,
910 afhi->info_string
911 );
912 } else { /* mbox mode */
913 struct osl_object lyrics_def;
914 lyr_get_def_by_id(afsi->lyrics_id, &lyrics_def);
915 para_printf(b,
916 "From foo@localhost %s\n"
917 "Received: from\nTo: bar\nFrom: a\n"
918 "Subject: %s\n\n" /* path */
919 "%s%s%s" /* score */
920 "attributes: %s\n"
921 "hash: %s\n"
922 "image_id: %s\n"
923 "lyrics_id: %s\n"
924 "bitrate: %dkbit/s\n"
925 "format: %s\n"
926 "frequency: %dHz\n"
927 "channels: %d\n"
928 "duration: %s\n"
929 "num_played: %d\n"
930 "tag info: %s\n"
931 "%s%s\n",
932 last_played_time,
933 d->path,
934 have_score? "score: " : "", score_buf,
935 have_score? "\n" : "",
936 att_line,
937 asc_hash,
938 image_line,
939 lyrics_line,
940 afhi->bitrate,
941 audio_format_name(afsi->audio_format_id),
942 afhi->frequency,
943 afhi->channels,
944 duration_buf,
945 afsi->num_played,
946 afhi->info_string,
947 lyrics_def.data? "Lyrics:\n~~~~~~~\n" : "",
948 lyrics_def.data? (char *)lyrics_def.data : ""
949 );
950 if (lyrics_def.data)
951 osl_close_disk_object(lyrics_def.data);
952 }
953 free(att_line);
954 free(lyrics_line);
955 free(image_line);
956 return 1;
957 }
958
959 static int ls_audio_format_compare(const void *a, const void *b)
960 {
961 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
962 return NUM_COMPARE(d1->afsi.audio_format_id, d2->afsi.audio_format_id);
963 }
964
965 static int ls_duration_compare(const void *a, const void *b)
966 {
967 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
968 return NUM_COMPARE(d1->afhi.seconds_total, d2->afhi.seconds_total);
969 }
970
971 static int ls_bitrate_compare(const void *a, const void *b)
972 {
973 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
974 return NUM_COMPARE(d1->afhi.bitrate, d2->afhi.bitrate);
975 }
976
977 static int ls_lyrics_id_compare(const void *a, const void *b)
978 {
979 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
980 return NUM_COMPARE(d1->afsi.lyrics_id, d2->afsi.lyrics_id);
981 }
982
983 static int ls_image_id_compare(const void *a, const void *b)
984 {
985 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
986 return NUM_COMPARE(d1->afsi.image_id, d2->afsi.image_id);
987 }
988
989 static int ls_channels_compare(const void *a, const void *b)
990 {
991 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
992 return NUM_COMPARE(d1->afhi.channels, d2->afhi.channels);
993 }
994
995 static int ls_frequency_compare(const void *a, const void *b)
996 {
997 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
998 return NUM_COMPARE(d1->afhi.frequency, d2->afhi.frequency);
999 }
1000
1001 static int ls_num_played_compare(const void *a, const void *b)
1002 {
1003 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1004 return NUM_COMPARE(d1->afsi.num_played, d2->afsi.num_played);
1005 }
1006
1007 static int ls_last_played_compare(const void *a, const void *b)
1008 {
1009 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1010 return NUM_COMPARE(d1->afsi.last_played, d2->afsi.last_played);
1011 }
1012
1013 static int ls_score_compare(const void *a, const void *b)
1014 {
1015 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1016 return NUM_COMPARE(d1->score, d2->score);
1017 }
1018
1019 static int ls_path_compare(const void *a, const void *b)
1020 {
1021 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1022 return strcmp(d1->path, d2->path);
1023 }
1024
1025 static int sort_matching_paths(struct ls_options *options)
1026 {
1027 size_t nmemb = options->num_matching_paths;
1028 size_t size = sizeof(*options->data_ptr);
1029 int (*compar)(const void *, const void *);
1030 int i;
1031
1032 options->data_ptr = para_malloc(nmemb * sizeof(*options->data_ptr));
1033 for (i = 0; i < nmemb; i++)
1034 options->data_ptr[i] = options->data + i;
1035
1036 /* In these cases the array is already sorted */
1037 if (options->sorting == LS_SORT_BY_PATH
1038 && !(options->flags & LS_FLAG_ADMISSIBLE_ONLY)
1039 && (options->flags & LS_FLAG_FULL_PATH))
1040 return 1;
1041 if (options->sorting == LS_SORT_BY_SCORE &&
1042 options->flags & LS_FLAG_ADMISSIBLE_ONLY)
1043 return 1;
1044
1045 switch (options->sorting) {
1046 case LS_SORT_BY_PATH:
1047 compar = ls_path_compare; break;
1048 case LS_SORT_BY_SCORE:
1049 compar = ls_score_compare; break;
1050 case LS_SORT_BY_LAST_PLAYED:
1051 compar = ls_last_played_compare; break;
1052 case LS_SORT_BY_NUM_PLAYED:
1053 compar = ls_num_played_compare; break;
1054 case LS_SORT_BY_FREQUENCY:
1055 compar = ls_frequency_compare; break;
1056 case LS_SORT_BY_CHANNELS:
1057 compar = ls_channels_compare; break;
1058 case LS_SORT_BY_IMAGE_ID:
1059 compar = ls_image_id_compare; break;
1060 case LS_SORT_BY_LYRICS_ID:
1061 compar = ls_lyrics_id_compare; break;
1062 case LS_SORT_BY_BITRATE:
1063 compar = ls_bitrate_compare; break;
1064 case LS_SORT_BY_DURATION:
1065 compar = ls_duration_compare; break;
1066 case LS_SORT_BY_AUDIO_FORMAT:
1067 compar = ls_audio_format_compare; break;
1068 default:
1069 return -E_BAD_SORT;
1070 }
1071 qsort(options->data_ptr, nmemb, size, compar);
1072 return 1;
1073 }
1074
1075 /* row is either an aft_row or a row of the score table */
1076 /* TODO: Only compute widths if we need them */
1077 static int prepare_ls_row(struct osl_row *row, void *ls_opts)
1078 {
1079 int ret, i;
1080 struct ls_options *options = ls_opts;
1081 struct ls_data *d;
1082 struct ls_widths *w;
1083 unsigned short num_digits;
1084 unsigned tmp;
1085 struct osl_row *aft_row;
1086 long score;
1087 char *path;
1088
1089 if (options->flags & LS_FLAG_ADMISSIBLE_ONLY) {
1090 ret = get_score_and_aft_row(row, &score, &aft_row);
1091 if (ret < 0)
1092 return ret;
1093 } else
1094 aft_row = row;
1095 ret = get_audio_file_path_of_row(aft_row, &path);
1096 if (ret < 0)
1097 return ret;
1098 if (!(options->flags & LS_FLAG_FULL_PATH)) {
1099 char *p = strrchr(path, '/');
1100 if (p)
1101 path = p + 1;
1102 }
1103 if (options->num_patterns) {
1104 for (i = 0; i < options->num_patterns; i++) {
1105 ret = fnmatch(options->patterns[i], path, 0);
1106 if (!ret)
1107 break;
1108 if (ret == FNM_NOMATCH)
1109 continue;
1110 return -E_FNMATCH;
1111 }
1112 if (i >= options->num_patterns) /* no match */
1113 return 1;
1114 }
1115 tmp = options->num_matching_paths++;
1116 if (options->num_matching_paths > options->array_size) {
1117 options->array_size++;
1118 options->array_size *= 2;
1119 options->data = para_realloc(options->data, options->array_size
1120 * sizeof(*options->data));
1121 }
1122 d = options->data + tmp;
1123 ret = get_afsi_of_row(aft_row, &d->afsi);
1124 if (ret < 0)
1125 return ret;
1126 ret = get_afhi_of_row(aft_row, &d->afhi);
1127 if (ret < 0)
1128 return ret;
1129 d->path = path;
1130 ret = get_hash_of_row(aft_row, &d->hash);
1131 if (ret < 0)
1132 return ret;
1133 w = &options->widths;
1134 GET_NUM_DIGITS(d->afsi.image_id, &num_digits);
1135 w->image_id_width = PARA_MAX(w->image_id_width, num_digits);
1136 GET_NUM_DIGITS(d->afsi.lyrics_id, &num_digits);
1137 w->lyrics_id_width = PARA_MAX(w->lyrics_id_width, num_digits);
1138 GET_NUM_DIGITS(d->afhi.bitrate, &num_digits);
1139 w->bitrate_width = PARA_MAX(w->bitrate_width, num_digits);
1140 GET_NUM_DIGITS(d->afhi.frequency, &num_digits);
1141 w->frequency_width = PARA_MAX(w->frequency_width, num_digits);
1142 GET_NUM_DIGITS(d->afsi.num_played, &num_digits);
1143 w->num_played_width = PARA_MAX(w->num_played_width, num_digits);
1144 /* get the number of chars to print this amount of time */
1145 tmp = get_duration_width(d->afhi.seconds_total);
1146 w->duration_width = PARA_MAX(w->duration_width, tmp);
1147 if (options->flags & LS_FLAG_ADMISSIBLE_ONLY) {
1148 GET_NUM_DIGITS(score, &num_digits);
1149 num_digits++; /* add one for the sign (space or "-") */
1150 w->score_width = PARA_MAX(w->score_width, num_digits);
1151 d->score = score;
1152 }
1153 return 1;
1154 }
1155
1156 static int com_ls_callback(const struct osl_object *query,
1157 struct osl_object *ls_output)
1158 {
1159 struct ls_options *opts = query->data;
1160 char *p, *pattern_start = (char *)query->data + sizeof(*opts);
1161 struct para_buffer b = {.buf = NULL, .size = 0};
1162 int i = 0, ret;
1163 time_t current_time;
1164
1165
1166 if (opts->num_patterns) {
1167 opts->patterns = para_malloc(opts->num_patterns * sizeof(char *));
1168 for (i = 0, p = pattern_start; i < opts->num_patterns; i++) {
1169 opts->patterns[i] = p;
1170 p += strlen(p) + 1;
1171 }
1172 } else
1173 opts->patterns = NULL;
1174 if (opts->flags & LS_FLAG_ADMISSIBLE_ONLY)
1175 ret = admissible_file_loop(opts, prepare_ls_row);
1176 else
1177 ret = osl_rbtree_loop(audio_file_table, AFTCOL_PATH, opts,
1178 prepare_ls_row);
1179 if (ret < 0)
1180 goto out;
1181 ret = opts->num_patterns? -E_NO_MATCH : 0;
1182 if (!opts->num_matching_paths)
1183 goto out;
1184 ret = sort_matching_paths(opts);
1185 if (ret < 0)
1186 goto out;
1187 time(&current_time);
1188 if (opts->flags & LS_FLAG_REVERSE)
1189 for (i = opts->num_matching_paths - 1; i >= 0; i--) {
1190 ret = print_list_item(opts->data_ptr[i], opts, &b, current_time);
1191 if (ret < 0)
1192 break;
1193 }
1194 else
1195 for (i = 0; i < opts->num_matching_paths; i++) {
1196 ret = print_list_item(opts->data_ptr[i], opts, &b, current_time);
1197 if (ret < 0)
1198 break;
1199 }
1200 ret = 1;
1201 out:
1202 ls_output->data = b.buf;
1203 ls_output->size = b.size;
1204 free(opts->data);
1205 free(opts->data_ptr);
1206 free(opts->patterns);
1207 return ret;
1208 }
1209
1210 /*
1211 * TODO: flags -h (sort by hash) -lm (list in mbox format)
1212 *
1213 * long list: list hash, attributes as (xx--x-x-), file size, lastplayed
1214 * full list: list everything, including afsi, afhi, atts as clear text
1215 *
1216 * */
1217 int com_ls(int fd, int argc, char * const * const argv)
1218 {
1219 int i, ret;
1220 unsigned flags = 0;
1221 enum ls_sorting_method sort = LS_SORT_BY_PATH;
1222 enum ls_listing_mode mode = LS_MODE_SHORT;
1223 struct ls_options opts = {.patterns = NULL};
1224 struct osl_object query = {.data = &opts, .size = sizeof(opts)},
1225 ls_output;
1226
1227 for (i = 1; i < argc; i++) {
1228 const char *arg = argv[i];
1229 if (arg[0] != '-')
1230 break;
1231 if (!strcmp(arg, "--")) {
1232 i++;
1233 break;
1234 }
1235 if (!strncmp(arg, "-l", 2)) {
1236 if (!*(arg + 2)) {
1237 mode = LS_MODE_LONG;
1238 continue;
1239 }
1240 if (*(arg + 3))
1241 return -E_AFT_SYNTAX;
1242 switch(*(arg + 2)) {
1243 case 's':
1244 mode = LS_MODE_SHORT;
1245 continue;
1246 case 'l':
1247 mode = LS_MODE_LONG;
1248 continue;
1249 case 'v':
1250 mode = LS_MODE_VERBOSE;
1251 continue;
1252 case 'm':
1253 mode = LS_MODE_MBOX;
1254 continue;
1255 default:
1256 return -E_AFT_SYNTAX;
1257 }
1258 }
1259 if (!strcmp(arg, "-p")) {
1260 flags |= LS_FLAG_FULL_PATH;
1261 continue;
1262 }
1263 if (!strcmp(arg, "-a")) {
1264 flags |= LS_FLAG_ADMISSIBLE_ONLY;
1265 continue;
1266 }
1267 if (!strcmp(arg, "-r")) {
1268 flags |= LS_FLAG_REVERSE;
1269 continue;
1270 }
1271 if (!strncmp(arg, "-s", 2)) {
1272 if (!*(arg + 2) || *(arg + 3))
1273 return -E_AFT_SYNTAX;
1274 switch(*(arg + 2)) {
1275 case 'p':
1276 sort = LS_SORT_BY_PATH;
1277 continue;
1278 case 's': /* -ss implies -a */
1279 sort = LS_SORT_BY_SCORE;
1280 flags |= LS_FLAG_ADMISSIBLE_ONLY;
1281 continue;
1282 case 'l':
1283 sort = LS_SORT_BY_LAST_PLAYED;
1284 continue;
1285 case 'n':
1286 sort = LS_SORT_BY_NUM_PLAYED;
1287 continue;
1288 case 'f':
1289 sort = LS_SORT_BY_FREQUENCY;
1290 continue;
1291 case 'c':
1292 sort = LS_SORT_BY_CHANNELS;
1293 continue;
1294 case 'i':
1295 sort = LS_SORT_BY_IMAGE_ID;
1296 continue;
1297 case 'y':
1298 sort = LS_SORT_BY_LYRICS_ID;
1299 continue;
1300 case 'b':
1301 sort = LS_SORT_BY_BITRATE;
1302 continue;
1303 case 'd':
1304 sort = LS_SORT_BY_DURATION;
1305 continue;
1306 case 'a':
1307 sort = LS_SORT_BY_AUDIO_FORMAT;
1308 continue;
1309 default:
1310 return -E_AFT_SYNTAX;
1311 }
1312 }
1313 return -E_AFT_SYNTAX;
1314 }
1315 opts.flags = flags;
1316 opts.sorting = sort;
1317 opts.mode = mode;
1318 opts.num_patterns = argc - i;
1319 ret = send_option_arg_callback_request(&query, opts.num_patterns,
1320 argv + i, com_ls_callback, &ls_output);
1321 if (ret > 0) {
1322 ret = send_buffer(fd, (char *)ls_output.data);
1323 free(ls_output.data);
1324 }
1325 return ret;
1326 }
1327
1328 /**
1329 * Call the given function for each file in the audio file table.
1330 *
1331 * \param private_data An arbitrary data pointer, passed to \a func.
1332 * \param func The custom function to be called.
1333 *
1334 * \return The return value of the underlying call to osl_rbtree_loop().
1335 */
1336 int audio_file_loop(void *private_data, osl_rbtree_loop_func *func)
1337 {
1338 return osl_rbtree_loop(audio_file_table, AFTCOL_HASH, private_data,
1339 func);
1340 }
1341
1342 static struct osl_row *find_hash_sister(HASH_TYPE *hash)
1343 {
1344 const struct osl_object obj = {.data = hash, .size = HASH_SIZE};
1345 struct osl_row *row;
1346
1347 osl_get_row(audio_file_table, AFTCOL_HASH, &obj, &row);
1348 return row;
1349 }
1350
1351 enum aft_row_offsets {
1352 AFTROW_AFHI_OFFSET_POS = 0,
1353 AFTROW_CHUNKS_OFFSET_POS = 2,
1354 AFTROW_AUDIO_FORMAT_OFFSET = 4,
1355 AFTROW_FLAGS_OFFSET = 5,
1356 AFTROW_HASH_OFFSET = 9,
1357 AFTROW_PATH_OFFSET = (AFTROW_HASH_OFFSET + HASH_SIZE),
1358 };
1359
1360 /* never save the afsi, as the server knows it too. Note that afhi might be NULL.
1361 * In this case, afhi won't be stored in the buffer */
1362 static void save_audio_file_info(HASH_TYPE *hash, const char *path,
1363 struct audio_format_info *afhi, uint32_t flags,
1364 uint8_t audio_format_num, struct osl_object *obj)
1365 {
1366 size_t path_len = strlen(path) + 1;
1367 size_t afhi_size = sizeof_afhi_buf(afhi);
1368 size_t size = AFTROW_PATH_OFFSET + path_len + afhi_size
1369 + sizeof_chunk_info_buf(afhi);
1370 char *buf = para_malloc(size);
1371 uint16_t pos;
1372
1373 write_u8(buf + AFTROW_AUDIO_FORMAT_OFFSET, audio_format_num);
1374 write_u32(buf + AFTROW_FLAGS_OFFSET, flags);
1375
1376 memcpy(buf + AFTROW_HASH_OFFSET, hash, HASH_SIZE);
1377 strcpy(buf + AFTROW_PATH_OFFSET, path);
1378
1379 pos = AFTROW_PATH_OFFSET + path_len;
1380 PARA_DEBUG_LOG("size: %zu, afhi starts at %d\n", size, pos);
1381 PARA_DEBUG_LOG("last afhi byte: %p, pos %zu\n", buf + pos + afhi_size - 1,
1382 pos + afhi_size - 1);
1383 write_u16(buf + AFTROW_AFHI_OFFSET_POS, pos);
1384 save_afhi(afhi, buf + pos);
1385
1386 pos += afhi_size;
1387 PARA_DEBUG_LOG("size: %zu, chunks start at %d\n", size, pos);
1388 write_u16(buf + AFTROW_CHUNKS_OFFSET_POS, pos);
1389 save_chunk_info(afhi, buf + pos);
1390 PARA_DEBUG_LOG("last byte in buf: %p\n", buf + size - 1);
1391 obj->data = buf;
1392 obj->size = size;
1393 }
1394
1395 /*
1396 input:
1397 ~~~~~~
1398 HS: hash sister
1399 PB: path brother
1400 F: force flag given
1401
1402 output:
1403 ~~~~~~~
1404 AFHI: whether afhi and chunk table are computed and sent
1405 ACTION: table modifications to be performed
1406
1407 +---+----+-----+------+---------------------------------------------------+
1408 | HS | PB | F | AFHI | ACTION
1409 +---+----+-----+------+---------------------------------------------------+
1410 | Y | Y | Y | Y | if HS != PB: remove PB. HS: force afhi update,
1411 | | update path, keep afsi
1412 +---+----+-----+------+---------------------------------------------------+
1413 | Y | Y | N | N | if HS == PB: do not send callback request at all.
1414 | | otherwise: remove PB, HS: update path, keep afhi,
1415 | | afsi.
1416 +---+----+-----+------+---------------------------------------------------+
1417 | Y | N | Y | Y | (rename) force afhi update of HS, update path of
1418 | | HS, keep afsi
1419 +---+----+-----+------+---------------------------------------------------+
1420 | Y | N | N | N | (file rename) update path of HS, keep afsi, afhi
1421 +---+----+-----+------+---------------------------------------------------+
1422 | N | Y | Y | Y | (file change) update afhi, hash, of PB, keep afsi
1423 | | (force has no effect)
1424 +---+----+-----+------+---------------------------------------------------+
1425 | N | Y | N | Y | (file change) update afhi, hash of PB, keep afsi
1426 +---+----+-----+------+---------------------------------------------------+
1427 | N | N | Y | Y | (new file) create new entry (force has no effect)
1428 +---+----+-----+------+---------------------------------------------------+
1429 | N | N | N | Y | (new file) create new entry
1430 +---+----+-----+------+---------------------------------------------------+
1431
1432 afhi <=> force or no HS
1433
1434 */
1435
1436 /** Flags passed to the add command. */
1437 enum com_add_flags {
1438 /** Skip paths that exist already. */
1439 ADD_FLAG_LAZY = 1,
1440 /** Force adding. */
1441 ADD_FLAG_FORCE = 2,
1442 /** Print what is being done. */
1443 ADD_FLAG_VERBOSE = 4,
1444 /** Try to add files with unknown suffixes. */
1445 ADD_FLAG_ALL = 8,
1446 };
1447
1448 static int com_add_callback(const struct osl_object *query,
1449 struct osl_object *result)
1450 {
1451 char *buf = query->data, *path;
1452 struct osl_row *pb, *aft_row;
1453 struct osl_row *hs;
1454 struct osl_object objs[NUM_AFT_COLUMNS];
1455 HASH_TYPE *hash;
1456 char asc[2 * HASH_SIZE + 1];
1457 int ret;
1458 char afsi_buf[AFSI_SIZE];
1459 uint32_t flags = read_u32(buf + AFTROW_FLAGS_OFFSET);
1460 struct afs_info default_afsi = {.last_played = 0};
1461 struct para_buffer msg = {.buf = NULL};
1462
1463 hash = (HASH_TYPE *)buf + AFTROW_HASH_OFFSET;
1464 hash_to_asc(hash, asc);;
1465 objs[AFTCOL_HASH].data = buf + AFTROW_HASH_OFFSET;
1466 objs[AFTCOL_HASH].size = HASH_SIZE;
1467
1468 path = buf + AFTROW_PATH_OFFSET;
1469 objs[AFTCOL_PATH].data = path;
1470 objs[AFTCOL_PATH].size = strlen(path) + 1;
1471
1472 PARA_INFO_LOG("request to add %s\n", path);
1473 hs = find_hash_sister(hash);
1474 ret = aft_get_row_of_path(path, &pb);
1475 if (ret < 0 && ret != -E_RB_KEY_NOT_FOUND)
1476 return ret;
1477 if (hs && pb && hs == pb && !(flags & ADD_FLAG_FORCE)) {
1478 if (flags & ADD_FLAG_VERBOSE)
1479 para_printf(&msg, "ignoring duplicate\n");
1480 ret = 1;
1481 goto out;
1482 }
1483 if (hs && hs != pb) {
1484 struct osl_object obj;
1485 if (pb) { /* hs trumps pb, remove pb */
1486 if (flags & ADD_FLAG_VERBOSE)
1487 para_printf(&msg, "removing path brother\n");
1488 ret = osl_del_row(audio_file_table, pb);
1489 if (ret < 0)
1490 goto out;
1491 pb = NULL;
1492 }
1493 /* file rename, update hs' path */
1494 if (flags & ADD_FLAG_VERBOSE) {
1495 ret = osl_get_object(audio_file_table, hs,
1496 AFTCOL_PATH, &obj);
1497 if (ret < 0)
1498 goto out;
1499 para_printf(&msg, "renamed from %s\n", (char *)obj.data);
1500 }
1501 ret = osl_update_object(audio_file_table, hs, AFTCOL_PATH,
1502 &objs[AFTCOL_PATH]);
1503 if (ret < 0)
1504 goto out;
1505 afs_event(AUDIO_FILE_RENAME, &msg, hs);
1506 if (!(flags & ADD_FLAG_FORCE))
1507 goto out;
1508 }
1509 /* no hs or force mode, child must have sent afhi */
1510 uint16_t afhi_offset = read_u16(buf + AFTROW_AFHI_OFFSET_POS);
1511 uint16_t chunks_offset = read_u16(buf + AFTROW_CHUNKS_OFFSET_POS);
1512
1513 objs[AFTCOL_AFHI].data = buf + afhi_offset;
1514 objs[AFTCOL_AFHI].size = chunks_offset - afhi_offset;
1515 ret = -E_NO_AFHI;
1516 if (!objs[AFTCOL_AFHI].size) /* "impossible" */
1517 goto out;
1518 objs[AFTCOL_CHUNKS].data = buf + chunks_offset;
1519 objs[AFTCOL_CHUNKS].size = query->size - chunks_offset;
1520 if (pb && !hs) { /* update pb's hash */
1521 char old_asc[2 * HASH_SIZE + 1];
1522 HASH_TYPE *old_hash;
1523 ret = get_hash_of_row(pb, &old_hash);
1524 if (ret < 0)
1525 goto out;
1526 hash_to_asc(old_hash, old_asc);
1527 if (flags & ADD_FLAG_VERBOSE)
1528 para_printf(&msg, "file change: %s -> %s\n",
1529 old_asc, asc);
1530 ret = osl_update_object(audio_file_table, pb, AFTCOL_HASH,
1531 &objs[AFTCOL_HASH]);
1532 if (ret < 0)
1533 goto out;
1534 }
1535 if (hs || pb) { /* (hs != NULL and pb != NULL) implies hs == pb */
1536 struct osl_row *row = pb? pb : hs;
1537 /* update afhi and chunk_table */
1538 if (flags & ADD_FLAG_VERBOSE)
1539 para_printf(&msg, "updating afhi and chunk table\n");
1540 ret = osl_update_object(audio_file_table, row, AFTCOL_AFHI,
1541 &objs[AFTCOL_AFHI]);
1542 if (ret < 0)
1543 goto out;
1544 ret = osl_update_object(audio_file_table, row, AFTCOL_CHUNKS,
1545 &objs[AFTCOL_CHUNKS]);
1546 if (ret < 0)
1547 goto out;
1548 afs_event(AFHI_CHANGE, &msg, row);
1549 goto out;
1550 }
1551 /* new entry, use default afsi */
1552 if (flags & ADD_FLAG_VERBOSE)
1553 para_printf(&msg, "new file\n");
1554 default_afsi.last_played = time(NULL) - 365 * 24 * 60 * 60;
1555 default_afsi.audio_format_id = read_u8(buf + AFTROW_AUDIO_FORMAT_OFFSET);
1556
1557 objs[AFTCOL_AFSI].data = &afsi_buf;
1558 objs[AFTCOL_AFSI].size = AFSI_SIZE;
1559 save_afsi(&default_afsi, &objs[AFTCOL_AFSI]);
1560 ret = osl_add_and_get_row(audio_file_table, objs, &aft_row);
1561 out:
1562 if (ret < 0)
1563 para_printf(&msg, "%s\n", PARA_STRERROR(-ret));
1564 if (!msg.buf)
1565 return 0;
1566 result->data = msg.buf;
1567 result->size = msg.size;
1568 afs_event(AUDIO_FILE_ADD, &msg, aft_row);
1569 return 1;
1570 }
1571
1572 struct private_add_data {
1573 int fd;
1574 uint32_t flags;
1575 };
1576
1577 static int path_brother_callback(const struct osl_object *query,
1578 struct osl_object *result)
1579 {
1580 char *path = query->data;
1581 struct osl_row *path_brother;
1582 int ret = aft_get_row_of_path(path, &path_brother);
1583 if (ret < 0)
1584 return ret;
1585 result->data = para_malloc(sizeof(path_brother));
1586 result->size = sizeof(path_brother);
1587 *(struct osl_row **)(result->data) = path_brother;
1588 return 1;
1589 }
1590
1591 static int hash_sister_callback(const struct osl_object *query,
1592 struct osl_object *result)
1593 {
1594 HASH_TYPE *hash = query->data;
1595 struct osl_row *hash_sister;
1596
1597 hash_sister = find_hash_sister(hash);
1598 if (!hash_sister)
1599 return -E_RB_KEY_NOT_FOUND;
1600 result->data = para_malloc(sizeof(hash_sister));
1601 result->size = sizeof(hash_sister);
1602 *(struct osl_row **)(result->data) = hash_sister;
1603 return 1;
1604 }
1605
1606 static int add_one_audio_file(const char *path, const void *private_data)
1607 {
1608 int ret, ret2;
1609 uint8_t format_num = -1;
1610 const struct private_add_data *pad = private_data;
1611 struct audio_format_info afhi, *afhi_ptr = NULL;
1612 struct osl_row *pb = NULL, *hs = NULL; /* path brother/hash sister */
1613 struct osl_object map, obj = {.data = NULL}, query, result = {.data = NULL};
1614 HASH_TYPE hash[HASH_SIZE];
1615
1616 afhi.header_offset = 0;
1617 afhi.header_len = 0;
1618 ret = guess_audio_format(path);
1619 if (ret < 0 && !(pad->flags & ADD_FLAG_ALL))
1620 goto out_free;
1621 query.data = (char *)path;
1622 query.size = strlen(path) + 1;
1623 ret = send_callback_request(path_brother_callback, &query, &result);
1624 if (ret < 0 && ret != -E_RB_KEY_NOT_FOUND)
1625 goto out_free;
1626 if (ret >= 0) {
1627 pb = *(struct osl_row **)result.data;
1628 free(result.data);
1629 }
1630 ret = 1;
1631 if (pb && (pad->flags & ADD_FLAG_LAZY)) { /* lazy is really cheap */
1632 if (pad->flags & ADD_FLAG_VERBOSE)
1633 ret = send_va_buffer(pad->fd, "lazy-ignore: %s\n", path);
1634 goto out_free;
1635 }
1636 /* We still want to add this file. Compute its hash. */
1637 ret = mmap_full_file(path, O_RDONLY, &map.data, &map.size, NULL);
1638 if (ret < 0)
1639 goto out_free;
1640 hash_function(map.data, map.size, hash);
1641
1642 /* Check whether database contains file with the same hash. */
1643 query.data = hash;
1644 query.size = HASH_SIZE;
1645 ret = send_callback_request(hash_sister_callback, &query, &result);
1646 if (ret < 0 && ret != -E_RB_KEY_NOT_FOUND)
1647 goto out_free;
1648 if (ret >= 0) {
1649 hs = *(struct osl_row **)result.data;
1650 free(result.data);
1651 }
1652 /* Return success if we already know this file. */
1653 ret = 1;
1654 if (pb && hs && hs == pb && (!(pad->flags & ADD_FLAG_FORCE))) {
1655 if (pad->flags & ADD_FLAG_VERBOSE)
1656 ret = send_va_buffer(pad->fd,
1657 "%s exists, not forcing update\n", path);
1658 goto out_unmap;
1659 }
1660 /*
1661 * we won't recalculate the audio format info and the chunk table if
1662 * there is a hash sister unless in FORCE mode.
1663 */
1664 if (!hs || (pad->flags & ADD_FLAG_FORCE)) {
1665 ret = compute_afhi(path, map.data, map.size, &afhi);
1666 if (ret < 0)
1667 goto out_unmap;
1668 format_num = ret;
1669 afhi_ptr = &afhi;
1670 }
1671 if (pad->flags & ADD_FLAG_VERBOSE) {
1672 ret = send_va_buffer(pad->fd, "adding %s\n", path);
1673 if (ret < 0)
1674 goto out_unmap;
1675 }
1676 munmap(map.data, map.size);
1677 save_audio_file_info(hash, path, afhi_ptr, pad->flags, format_num, &obj);
1678 /* Ask afs to consider this entry for adding. */
1679 ret = send_callback_request(com_add_callback, &obj, &result);
1680 if (ret >= 0 && result.data && result.size) {
1681 ret2 = send_va_buffer(pad->fd, "%s", (char *)result.data);
1682 free(result.data);
1683 if (ret >= 0 && ret2 < 0)
1684 ret = ret2;
1685 }
1686 goto out_free;
1687
1688 out_unmap:
1689 munmap(map.data, map.size);
1690 out_free:
1691 if (ret < 0 && ret != -E_SEND)
1692 send_va_buffer(pad->fd, "failed to add %s (%s)\n", path,
1693 PARA_STRERROR(-ret));
1694 free(obj.data);
1695 if (afhi_ptr)
1696 free(afhi_ptr->chunk_table);
1697 /* it's not an error if not all files could be added */
1698 return ret == -E_SEND? ret : 1;
1699 }
1700
1701 int com_add(int fd, int argc, char * const * const argv)
1702 {
1703 int i, ret;
1704 struct private_add_data pad = {.fd = fd, .flags = 0};
1705 struct stat statbuf;
1706
1707 for (i = 1; i < argc; i++) {
1708 const char *arg = argv[i];
1709 if (arg[0] != '-')
1710 break;
1711 if (!strcmp(arg, "--")) {
1712 i++;
1713 break;
1714 }
1715 if (!strcmp(arg, "-a")) {
1716 pad.flags |= ADD_FLAG_ALL;
1717 continue;
1718 }
1719 if (!strcmp(arg, "-l")) {
1720 pad.flags |= ADD_FLAG_LAZY;
1721 continue;
1722 }
1723 if (!strcmp(arg, "-f")) {
1724 pad.flags |= ADD_FLAG_FORCE;
1725 continue;
1726 }
1727 if (!strcmp(arg, "-v")) {
1728 pad.flags |= ADD_FLAG_VERBOSE;
1729 continue;
1730 }
1731 }
1732 if (argc <= i)
1733 return -E_AFT_SYNTAX;
1734 for (; i < argc; i++) {
1735 char *path;
1736 ret = verify_path(argv[i], &path);
1737 if (ret < 0) {
1738 ret = send_va_buffer(fd, "%s: %s\n", argv[i], PARA_STRERROR(-ret));
1739 if (ret < 0)
1740 return ret;
1741 continue;
1742 }
1743 ret = stat(path, &statbuf);
1744 if (ret < 0) {
1745 ret = send_va_buffer(fd, "failed to stat %s (%s)\n", path,
1746 strerror(errno));
1747 free(path);
1748 if (ret < 0)
1749 return ret;
1750 continue;
1751 }
1752 if (S_ISDIR(statbuf.st_mode))
1753 ret = for_each_file_in_dir(path, add_one_audio_file,
1754 &pad);
1755 else
1756 ret = add_one_audio_file(path, &pad);
1757 if (ret < 0) {
1758 send_va_buffer(fd, "%s: %s\n", path, PARA_STRERROR(-ret));
1759 free(path);
1760 return ret;
1761 }
1762 free(path);
1763 }
1764 return 1;
1765
1766 }
1767
1768 /**
1769 * Flags used by the touch command.
1770 *
1771 * \sa com_touch().
1772 */
1773 enum touch_flags {
1774 /** Whether the \p FNM_PATHNAME flag should be passed to fnmatch(). */
1775 TOUCH_FLAG_FNM_PATHNAME = 1,
1776 /** Activates verbose mode. */
1777 TOUCH_FLAG_VERBOSE = 2
1778 };
1779
1780 struct com_touch_options {
1781 int32_t num_played;
1782 int64_t last_played;
1783 int32_t lyrics_id;
1784 int32_t image_id;
1785 unsigned flags;
1786 };
1787
1788 struct touch_action_data {
1789 struct com_touch_options *cto;
1790 struct para_buffer pb;
1791 };
1792
1793 static int touch_audio_file(__a_unused struct osl_table *table,
1794 struct osl_row *row, const char *name, void *data)
1795 {
1796 struct touch_action_data *tad = data;
1797 struct osl_object obj;
1798 struct afs_info old_afsi, new_afsi;
1799 int ret, no_options = tad->cto->num_played < 0 && tad->cto->last_played < 0 &&
1800 tad->cto->lyrics_id < 0 && tad->cto->image_id < 0;
1801 struct afsi_change_event_data aced;
1802
1803 ret = get_afsi_object_of_row(row, &obj);
1804 if (ret < 0) {
1805 para_printf(&tad->pb, "%s: %s\n", name, PARA_STRERROR(-ret));
1806 return 1;
1807 }
1808 ret = load_afsi(&old_afsi, &obj);
1809 if (ret < 0) {
1810 para_printf(&tad->pb, "%s: %s\n", name, PARA_STRERROR(-ret));
1811 return 1;
1812 }
1813 new_afsi = old_afsi;
1814 if (no_options) {
1815 new_afsi.num_played++;
1816 new_afsi.last_played = time(NULL);
1817 if (tad->cto->flags & TOUCH_FLAG_VERBOSE)
1818 para_printf(&tad->pb, "%s: num_played = %u, "
1819 "last_played = now()\n", name,
1820 new_afsi.num_played);
1821 } else {
1822 if (tad->cto->flags & TOUCH_FLAG_VERBOSE)
1823 para_printf(&tad->pb, "touching %s\n", name);
1824 if (tad->cto->lyrics_id >= 0)
1825 new_afsi.lyrics_id = tad->cto->lyrics_id;
1826 if (tad->cto->image_id >= 0)
1827 new_afsi.image_id = tad->cto->image_id;
1828 if (tad->cto->num_played >= 0)
1829 new_afsi.num_played = tad->cto->num_played;
1830 if (tad->cto->last_played >= 0)
1831 new_afsi.last_played = tad->cto->last_played;
1832 }
1833 save_afsi(&new_afsi, &obj); /* in-place update */
1834 aced.aft_row = row;
1835 aced.old_afsi = &old_afsi;
1836 afs_event(AFSI_CHANGE, &tad->pb, &aced);
1837 return 1;
1838 }
1839
1840 static int com_touch_callback(const struct osl_object *query,
1841 struct osl_object *result)
1842 {
1843 struct touch_action_data tad = {.cto = query->data};
1844 int ret;
1845 struct pattern_match_data pmd = {
1846 .table = audio_file_table,
1847 .loop_col_num = AFTCOL_HASH,
1848 .match_col_num = AFTCOL_PATH,
1849 .patterns = {.data = (char *)query->data + sizeof(*tad.cto),
1850 .size = query->size - sizeof(*tad.cto)},
1851 .data = &tad,
1852 .action = touch_audio_file
1853 };
1854 if (tad.cto->flags & TOUCH_FLAG_FNM_PATHNAME)
1855 pmd.fnmatch_flags |= FNM_PATHNAME;
1856 ret = for_each_matching_row(&pmd);
1857 if (ret < 0)
1858 para_printf(&tad.pb, "%s\n", PARA_STRERROR(-ret));
1859 if (tad.pb.buf) {
1860 result->data = tad.pb.buf;
1861 result->size = tad.pb.size;
1862 return 1;
1863 }
1864 return ret < 0? ret : 0;
1865 }
1866
1867 int com_touch(int fd, int argc, char * const * const argv)
1868 {
1869 struct com_touch_options cto = {
1870 .num_played = -1,
1871 .last_played = -1,
1872 .lyrics_id = -1,
1873 .image_id = -1
1874 };
1875 struct osl_object query = {.data = &cto, .size = sizeof(cto)},
1876 result;
1877 int i, ret;
1878
1879
1880 for (i = 1; i < argc; i++) {
1881 const char *arg = argv[i];
1882 if (arg[0] != '-')
1883 break;
1884 if (!strcmp(arg, "--")) {
1885 i++;
1886 break;
1887 }
1888 if (!strncmp(arg, "-n", 2)) {
1889 ret = para_atoi32(arg + 2, &cto.num_played);
1890 if (ret < 0)
1891 return ret;
1892 continue;
1893 }
1894 if (!strncmp(arg, "-l", 2)) {
1895 ret = para_atoi64(arg + 2, &cto.last_played);
1896 if (ret < 0)
1897 return ret;
1898 continue;
1899 }
1900 if (!strncmp(arg, "-y", 2)) {
1901 ret = para_atoi32(arg + 2, &cto.lyrics_id);
1902 if (ret < 0)
1903 return ret;
1904 continue;
1905 }
1906 if (!strncmp(arg, "-i", 2)) {
1907 ret = para_atoi32(arg + 2, &cto.image_id);
1908 if (ret < 0)
1909 return ret;
1910 continue;
1911 }
1912 if (!strcmp(arg, "-p")) {
1913 cto.flags |= TOUCH_FLAG_FNM_PATHNAME;
1914 continue;
1915 }
1916 if (!strcmp(arg, "-v")) {
1917 cto.flags |= TOUCH_FLAG_VERBOSE;
1918 continue;
1919 }
1920 break; /* non-option starting with dash */
1921 }
1922 if (i >= argc)
1923 return -E_AFT_SYNTAX;
1924 ret = send_option_arg_callback_request(&query, argc - i,
1925 argv + i, com_touch_callback, &result);
1926 if (ret > 0) {
1927 send_buffer(fd, (char *)result.data);
1928 free(result.data);
1929 } else
1930 send_va_buffer(fd, "%s\n", PARA_STRERROR(-ret));
1931 return ret;
1932 }
1933
1934 enum rm_flags {
1935 RM_FLAG_VERBOSE = 1,
1936 RM_FLAG_FORCE = 2,
1937 RM_FLAG_FNM_PATHNAME = 4
1938 };
1939
1940 struct com_rm_data {
1941 uint32_t flags;
1942 struct para_buffer pb;
1943 unsigned num_removed;
1944 };
1945
1946 static int remove_audio_file(__a_unused struct osl_table *table,
1947 struct osl_row *row, const char *name, void *data)
1948 {
1949 struct com_rm_data *crd = data;
1950 int ret;
1951
1952 if (crd->flags & RM_FLAG_VERBOSE)
1953 para_printf(&crd->pb, "removing %s\n", name);
1954 afs_event(AUDIO_FILE_REMOVE, &crd->pb, row);
1955 ret = osl_del_row(audio_file_table, row);
1956 if (ret < 0)
1957 para_printf(&crd->pb, "%s: %s\n", name, PARA_STRERROR(-ret));
1958 else
1959 crd->num_removed++;
1960 return 1;
1961 }
1962
1963 static int com_rm_callback(const struct osl_object *query,
1964 __a_unused struct osl_object *result)
1965 {
1966 struct com_rm_data crd = {.flags = *(uint32_t *)query->data};
1967 int ret;
1968 struct pattern_match_data pmd = {
1969 .table = audio_file_table,
1970 .loop_col_num = AFTCOL_HASH,
1971 .match_col_num = AFTCOL_PATH,
1972 .patterns = {.data = (char *)query->data + sizeof(uint32_t),
1973 .size = query->size - sizeof(uint32_t)},
1974 .data = &crd,
1975 .action = remove_audio_file
1976 };
1977 if (crd.flags & RM_FLAG_FNM_PATHNAME)
1978 pmd.fnmatch_flags |= FNM_PATHNAME;
1979 ret = for_each_matching_row(&pmd);
1980 if (ret < 0)
1981 para_printf(&crd.pb, "%s\n", PARA_STRERROR(-ret));
1982 if (!crd.num_removed && !(crd.flags & RM_FLAG_FORCE))
1983 para_printf(&crd.pb, "no matches -- nothing removed\n");
1984 else {
1985 if (crd.flags & RM_FLAG_VERBOSE)
1986 para_printf(&crd.pb, "removed %u files\n", crd.num_removed);
1987 }
1988 if (crd.pb.buf) {
1989 result->data = crd.pb.buf;
1990 result->size = crd.pb.size;
1991 return 1;
1992 }
1993 return ret < 0? ret : 0;
1994 }
1995
1996 /* TODO options: -r (recursive) */
1997 int com_rm(int fd, int argc, char * const * const argv)
1998 {
1999 uint32_t flags = 0;
2000 struct osl_object query = {.data = &flags, .size = sizeof(flags)},
2001 result;
2002 int i, ret;
2003
2004 for (i = 1; i < argc; i++) {
2005 const char *arg = argv[i];
2006 if (arg[0] != '-')
2007 break;
2008 if (!strcmp(arg, "--")) {
2009 i++;
2010 break;
2011 }
2012 if (!strcmp(arg, "-f")) {
2013 flags |= RM_FLAG_FORCE;
2014 continue;
2015 }
2016 if (!strcmp(arg, "-p")) {
2017 flags |= RM_FLAG_FNM_PATHNAME;
2018 continue;
2019 }
2020 if (!strcmp(arg, "-v")) {
2021 flags |= RM_FLAG_VERBOSE;
2022 continue;
2023 }
2024 break;
2025 }
2026 if (i >= argc)
2027 return -E_AFT_SYNTAX;
2028 ret = send_option_arg_callback_request(&query, argc - i, argv + i,
2029 com_rm_callback, &result);
2030 if (ret > 0) {
2031 send_buffer(fd, (char *)result.data);
2032 free(result.data);
2033 } else if (ret < 0)
2034 send_va_buffer(fd, "%s\n", PARA_STRERROR(-ret));
2035 return ret;
2036 }
2037
2038 /**
2039 * Flags used by the cpsi command.
2040 *
2041 * \sa com_cpsi().
2042 */
2043 enum cpsi_flags {
2044 /** Whether the lyrics id should be copied. */
2045 CPSI_FLAG_COPY_LYRICS_ID = 1,
2046 /** Whether the image id should be copied. */
2047 CPSI_FLAG_COPY_IMAGE_ID = 2,
2048 /** Whether the lastplayed time should be copied. */
2049 CPSI_FLAG_COPY_LASTPLAYED = 4,
2050 /** Whether the numplayed count should be copied. */
2051 CPSI_FLAG_COPY_NUMPLAYED = 8,
2052 /** Whether the attributes should be copied. */
2053 CPSI_FLAG_COPY_ATTRIBUTES = 16,
2054 /** Activates verbose mode. */
2055 CPSI_FLAG_VERBOSE = 32,
2056 };
2057
2058 struct cpsi_action_data {
2059 unsigned flags;
2060 unsigned num_copied;
2061 struct para_buffer pb;
2062 struct afs_info source_afsi;
2063 };
2064
2065 static int copy_selector_info(__a_unused struct osl_table *table,
2066 struct osl_row *row, const char *name, void *data)
2067 {
2068 struct cpsi_action_data *cad = data;
2069 struct osl_object target_afsi_obj;
2070 int ret;
2071 struct afs_info old_afsi, target_afsi;
2072 struct afsi_change_event_data aced;
2073
2074 ret = get_afsi_object_of_row(row, &target_afsi_obj);
2075 if (ret < 0)
2076 return ret;
2077 load_afsi(&target_afsi, &target_afsi_obj);
2078 old_afsi = target_afsi;
2079 if (cad->flags & CPSI_FLAG_COPY_LYRICS_ID)
2080 target_afsi.lyrics_id = cad->source_afsi.lyrics_id;
2081 if (cad->flags & CPSI_FLAG_COPY_IMAGE_ID)
2082 target_afsi.image_id = cad->source_afsi.image_id;
2083 if (cad->flags & CPSI_FLAG_COPY_LASTPLAYED)
2084 target_afsi.last_played = cad->source_afsi.last_played;
2085 if (cad->flags & CPSI_FLAG_COPY_NUMPLAYED)
2086 target_afsi.num_played = cad->source_afsi.num_played;
2087 if (cad->flags & CPSI_FLAG_COPY_ATTRIBUTES)
2088 target_afsi.attributes = cad->source_afsi.attributes;
2089 save_afsi(&target_afsi, &target_afsi_obj); /* in-place update */
2090 cad->num_copied++;
2091 if (cad->flags & CPSI_FLAG_VERBOSE)
2092 para_printf(&cad->pb, "copied afsi to %s\n", name);
2093 aced.aft_row = row;
2094 aced.old_afsi = &old_afsi;
2095 afs_event(AFSI_CHANGE, &cad->pb, &aced);
2096 return 1;
2097 }
2098
2099 static int com_cpsi_callback(const struct osl_object *query,
2100 struct osl_object *result)
2101 {
2102 struct cpsi_action_data cad = {.flags = *(unsigned *)query->data};
2103 int ret;
2104 char *source_path = (char *)query->data + sizeof(cad.flags);
2105
2106 ret = get_afsi_of_path(source_path, &cad.source_afsi);
2107 if (ret < 0)
2108 goto out;
2109 struct pattern_match_data pmd = {
2110 .table = audio_file_table,
2111 .loop_col_num = AFTCOL_HASH,
2112 .match_col_num = AFTCOL_PATH,
2113 .patterns = {.data = source_path + strlen(source_path) + 1,
2114 .size = query->size - sizeof(cad.flags)
2115 - strlen(source_path) - 1},
2116 .data = &cad,
2117 .action = copy_selector_info
2118 };
2119 ret = for_each_matching_row(&pmd);
2120 out:
2121 if (ret < 0)
2122 para_printf(&cad.pb, "%s\n", PARA_STRERROR(-ret));
2123 if (cad.flags & CPSI_FLAG_VERBOSE) {
2124 if (cad.num_copied)
2125 para_printf(&cad.pb, "copied requested afsi from %s "
2126 "to %u files\n",
2127 source_path, cad.num_copied);
2128 else
2129 para_printf(&cad.pb, "nothing copied\n");
2130 }
2131 if (cad.pb.buf) {
2132 result->data = cad.pb.buf;
2133 result->size = cad.pb.size;
2134 return 1;
2135 }
2136 return ret < 0? ret : 0;
2137 }
2138
2139 int com_cpsi(int fd, int argc, char * const * const argv)
2140 {
2141 unsigned flags = 0;
2142 int i, ret;
2143 struct osl_object options = {.data = &flags, .size = sizeof(flags)},
2144 result;
2145
2146 for (i = 1; i < argc; i++) {
2147 const char *arg = argv[i];
2148 if (arg[0] != '-')
2149 break;
2150 if (!strcmp(arg, "--")) {
2151 i++;
2152 break;
2153 }
2154 if (!strcmp(arg, "-y")) {
2155 flags |= CPSI_FLAG_COPY_LYRICS_ID;
2156 continue;
2157 }
2158 if (!strcmp(arg, "-i")) {
2159 flags |= CPSI_FLAG_COPY_IMAGE_ID;
2160 continue;
2161 }
2162 if (!strcmp(arg, "-l")) {
2163 flags |= CPSI_FLAG_COPY_LASTPLAYED;
2164 continue;
2165 }
2166 if (!strcmp(arg, "-n")) {
2167 flags |= CPSI_FLAG_COPY_NUMPLAYED;
2168 continue;
2169 }
2170 if (!strcmp(arg, "-a")) {
2171 flags |= CPSI_FLAG_COPY_ATTRIBUTES;
2172 continue;
2173 }
2174 if (!strcmp(arg, "-v")) {
2175 flags |= CPSI_FLAG_VERBOSE;
2176 continue;
2177 }
2178 break;
2179 }
2180 if (i + 1 >= argc) /* need at least souce file and pattern */
2181 return -E_AFT_SYNTAX;
2182 if (!(flags & ~CPSI_FLAG_VERBOSE)) /* no copy flags given */
2183 flags = ~(unsigned)CPSI_FLAG_VERBOSE | flags;
2184 ret = send_option_arg_callback_request(&options, argc - i, argv + i,
2185 com_cpsi_callback, &result);
2186 if (ret > 0) {
2187 send_buffer(fd, (char *)result.data);
2188 free(result.data);
2189 } else
2190 send_va_buffer(fd, "%s\n", PARA_STRERROR(-ret));
2191 return ret;
2192 }
2193
2194 /* TODO: optionally fix problems by removing offending rows */
2195 static int check_audio_file(struct osl_row *row, void *data)
2196 {
2197 char *path;
2198 struct para_buffer *pb = data;
2199 struct stat statbuf;
2200 int ret = get_audio_file_path_of_row(row, &path);
2201 struct afs_info afsi;
2202 char *blob_name;
2203
2204 if (ret < 0) {
2205 para_printf(pb, "%s\n", PARA_STRERROR(-ret));
2206 return 1;
2207 }
2208 if (stat(path, &statbuf) < 0)
2209 para_printf(pb, "%s: stat error (%s)\n", path, strerror(errno));
2210 else {
2211 if (!S_ISREG(statbuf.st_mode))
2212 para_printf(pb, "%s: not a regular file\n", path);
2213 }
2214 ret = get_afsi_of_row(row, &afsi);
2215 if (ret < 0) {
2216 para_printf(pb, "%s: %s\n", path, PARA_STRERROR(-ret));
2217 return 1;
2218 }
2219 ret = lyr_get_name_by_id(afsi.lyrics_id, &blob_name);
2220 if (ret < 0)
2221 para_printf(pb, "%s lyrics id %u: %s\n", path, afsi.lyrics_id,
2222 PARA_STRERROR(-ret));
2223 ret = img_get_name_by_id(afsi.image_id, &blob_name);
2224 if (ret < 0)
2225 para_printf(pb, "%s image id %u: %s\n", path, afsi.image_id,
2226 PARA_STRERROR(-ret));
2227 return 1;
2228 }
2229
2230 /**
2231 * Check the audio file table for inconsistencies.
2232 *
2233 * \param query Unused.
2234 * \param result Contains message string upon return.
2235 *
2236 * This function always succeeds.
2237 *
2238 * \sa com_check().
2239 */
2240 int aft_check_callback(__a_unused const struct osl_object *query, struct osl_object *result)
2241 {
2242 struct para_buffer pb = {.buf = NULL};
2243
2244 para_printf(&pb, "checking audio file table...\n");
2245 audio_file_loop(&pb, check_audio_file);
2246 result->data = pb.buf;
2247 result->size = pb.size;
2248 return 1;
2249
2250 }
2251
2252 /**
2253 * Close the audio file table.
2254 *
2255 * \param flags Ususal flags that are passed to osl_close_table().
2256 *
2257 * \sa osl_close_table().
2258 */
2259 static void aft_close(void)
2260 {
2261 osl_close_table(audio_file_table, OSL_MARK_CLEAN);
2262 audio_file_table = NULL;
2263 }
2264
2265 /**
2266 * Open the audio file table.
2267 *
2268 * \param dir The database directory.
2269 *
2270 * \return Standard.
2271 *
2272 * \sa osl_open_table().
2273 */
2274 static int aft_open(const char *dir)
2275 {
2276 int ret;
2277
2278 audio_file_table_desc.dir = dir;
2279 ret = osl_open_table(&audio_file_table_desc, &audio_file_table);
2280 if (ret >= 0) {
2281 unsigned num;
2282 osl_get_num_rows(audio_file_table, &num);
2283 PARA_INFO_LOG("audio file table contains %d files\n", num);
2284 return ret;
2285 }
2286 PARA_INFO_LOG("failed to open audio file table\n");
2287 audio_file_table = NULL;
2288 if (ret >= 0 || is_errno(-ret, ENOENT))
2289 return 1;
2290 return ret;
2291 }
2292
2293 static int aft_create(const char *dir)
2294 {
2295 audio_file_table_desc.dir = dir;
2296 return osl_create_table(&audio_file_table_desc);
2297 }
2298
2299 static int clear_attribute(struct osl_row *row, void *data)
2300 {
2301 struct rmatt_event_data *red = data;
2302 struct afs_info afsi;
2303 struct osl_object obj;
2304 int ret = get_afsi_object_of_row(row, &obj);
2305 uint64_t mask = ~(1ULL << red->bitnum);
2306
2307 if (ret < 0)
2308 return ret;
2309 ret = load_afsi(&afsi, &obj);
2310 if (ret < 0)
2311 return ret;
2312 afsi.attributes &= mask;
2313 save_afsi(&afsi, &obj);
2314 return 1;
2315 }
2316
2317 static int aft_event_handler(enum afs_events event, struct para_buffer *pb,
2318 void *data)
2319 {
2320 switch(event) {
2321 case ATTRIBUTE_REMOVE: {
2322 const struct rmatt_event_data *red = data;
2323 para_printf(pb, "clearing attribute %s (bit %u) from all "
2324 "entries in the audio file table\n", red->name,
2325 red->bitnum);
2326 return audio_file_loop(data, clear_attribute);
2327 }
2328 default:
2329 return 1;
2330 }
2331 }
2332
2333 void aft_init(struct afs_table *t)
2334 {
2335 t->name = audio_file_table_desc.name;
2336 t->open = aft_open;
2337 t->close = aft_close;
2338 t->create = aft_create;
2339 t->event_handler = aft_event_handler;
2340 }