3666a2eb90de28431dd25b5adbac41503bf80d92
[paraslash.git] / aft.c
1 /*
2 * Copyright (C) 2007 Andre Noll <maan@systemlinux.org>
3 *
4 * Licensed under the GPL v2. For licencing details see COPYING.
5 */
6
7 /** \file aft.c Audio file table functions. */
8
9 #include "para.h"
10 #include "error.h"
11 #include "string.h"
12 #include <sys/mman.h>
13 #include <fnmatch.h>
14 #include "afh.h"
15 #include "afs.h"
16 #include "net.h"
17 #include "vss.h"
18
19 static struct osl_table *audio_file_table;
20
21 /** The different sorting methods of the ls command. */
22 enum ls_sorting_method {
23 /** -sp (default) */
24 LS_SORT_BY_PATH,
25 /** -ss */
26 LS_SORT_BY_SCORE,
27 /** -sl */
28 LS_SORT_BY_LAST_PLAYED,
29 /** -sn */
30 LS_SORT_BY_NUM_PLAYED,
31 /** -sf */
32 LS_SORT_BY_FREQUENCY,
33 /** -sc */
34 LS_SORT_BY_CHANNELS,
35 /** -si */
36 LS_SORT_BY_IMAGE_ID,
37 /** -sy */
38 LS_SORT_BY_LYRICS_ID,
39 /** -sb */
40 LS_SORT_BY_BITRATE,
41 /** -sd */
42 LS_SORT_BY_DURATION,
43 /** -sa */
44 LS_SORT_BY_AUDIO_FORMAT,
45 /** -sh */
46 LS_SORT_BY_HASH,
47 };
48
49 /** The different listing modes of the ls command. */
50 enum ls_listing_mode {
51 /** Default listing mode. */
52 LS_MODE_SHORT,
53 /** -l or -ll */
54 LS_MODE_LONG,
55 /** -lv */
56 LS_MODE_VERBOSE,
57 /** -lm */
58 LS_MODE_MBOX
59 };
60
61 /** The flags accepted by the ls command. */
62 enum ls_flags {
63 /** -p */
64 LS_FLAG_FULL_PATH = 1,
65 /** -a */
66 LS_FLAG_ADMISSIBLE_ONLY = 2,
67 /** -r */
68 LS_FLAG_REVERSE = 4,
69 };
70
71 /**
72 * The size of the individual output fields of the ls command.
73 *
74 * These depend on the actual content being listed. If, for instance only files
75 * with duration less than an hour are being listed, then the duration with is
76 * made smaller because then the duration is listed as mm:ss rather than
77 * hh:mm:ss.
78 */
79 struct ls_widths {
80 /** size of the score field. */
81 unsigned short score_width;
82 /** size of the image id field. */
83 unsigned short image_id_width;
84 /** size of the lyrics id field. */
85 unsigned short lyrics_id_width;
86 /** size of the bitrate field. */
87 unsigned short bitrate_width;
88 /** size of the frequency field. */
89 unsigned short frequency_width;
90 /** size of the duration field. */
91 unsigned short duration_width;
92 /** size of the num played field. */
93 unsigned short num_played_width;
94 };
95
96 /** Data passed to the different compare functions (called by qsort()). */
97 struct ls_data {
98 /** Usual audio format handler information. */
99 struct audio_format_info afhi;
100 /** Audio file selector information. */
101 struct afs_info afsi;
102 /** The full path of the audio file. */
103 char *path;
104 /** The score value (if -a was given). */
105 long score;
106 /** The sha1 hash of audio file. */
107 HASH_TYPE *hash;
108 };
109
110 struct ls_options {
111 unsigned flags;
112 enum ls_sorting_method sorting;
113 enum ls_listing_mode mode;
114 char **patterns;
115 int num_patterns;
116 struct ls_widths widths;
117 uint32_t array_size;
118 uint32_t num_matching_paths;
119 struct ls_data *data;
120 struct ls_data **data_ptr;
121 };
122
123 /**
124 * Describes the layout of the mmapped-afs info struct.
125 *
126 * \sa struct afs_info.
127 */
128 enum afsi_offsets {
129 /** Where .last_played is stored. */
130 AFSI_LAST_PLAYED_OFFSET = 0,
131 /** Storage position of the attributes bitmap. */
132 AFSI_ATTRIBUTES_OFFSET = 8,
133 /** Storage position of the .num_played field. */
134 AFSI_NUM_PLAYED_OFFSET = 16,
135 /** Storage position of the .image_id field. */
136 AFSI_IMAGE_ID_OFFSET = 20,
137 /** Storage position of the .lyrics_id field. */
138 AFSI_LYRICS_ID_OFFSET = 24,
139 /** Storage position of the .audio_format_id field. */
140 AFSI_AUDIO_FORMAT_ID_OFFSET = 28,
141 /** On-disk storage space needed. */
142 AFSI_SIZE = 29
143 };
144
145 /**
146 * Convert a struct afs_info to an osl object.
147 *
148 * \param afsi Pointer to the audio file info to be converted.
149 * \param obj Result pointer.
150 *
151 * \sa load_afsi().
152 */
153 void save_afsi(struct afs_info *afsi, struct osl_object *obj)
154 {
155 char *buf = obj->data;
156
157 write_u64(buf + AFSI_LAST_PLAYED_OFFSET, afsi->last_played);
158 write_u64(buf + AFSI_ATTRIBUTES_OFFSET, afsi->attributes);
159 write_u32(buf + AFSI_NUM_PLAYED_OFFSET, afsi->num_played);
160 write_u32(buf + AFSI_IMAGE_ID_OFFSET, afsi->image_id);
161 write_u32(buf + AFSI_LYRICS_ID_OFFSET, afsi->lyrics_id);
162 write_u8(buf + AFSI_AUDIO_FORMAT_ID_OFFSET,
163 afsi->audio_format_id);
164 }
165
166 /**
167 * Get the audio file selector info struct stored in an osl object.
168 *
169 * \param afsi Points to the audio_file info structure to be filled in.
170 * \param obj The osl object holding the data.
171 *
172 * \return Positive on success, negative on errors. Possible errors: \p E_BAD_AFS.
173 *
174 * \sa save_afsi().
175 */
176 int load_afsi(struct afs_info *afsi, struct osl_object *obj)
177 {
178 char *buf = obj->data;
179 if (obj->size < AFSI_SIZE)
180 return -E_BAD_AFSI;
181 afsi->last_played = read_u64(buf + AFSI_LAST_PLAYED_OFFSET);
182 afsi->attributes = read_u64(buf + AFSI_ATTRIBUTES_OFFSET);
183 afsi->num_played = read_u32(buf + AFSI_NUM_PLAYED_OFFSET);
184 afsi->image_id = read_u32(buf + AFSI_IMAGE_ID_OFFSET);
185 afsi->lyrics_id = read_u32(buf + AFSI_LYRICS_ID_OFFSET);
186 afsi->audio_format_id = read_u8(buf +
187 AFSI_AUDIO_FORMAT_ID_OFFSET);
188 return 1;
189 }
190
191 /** The columns of the audio file table. */
192 enum audio_file_table_columns {
193 /** The hash on the content of the audio file. */
194 AFTCOL_HASH,
195 /** The full path in the filesystem. */
196 AFTCOL_PATH,
197 /** The audio file selector info. */
198 AFTCOL_AFSI,
199 /** The audio format handler info. */
200 AFTCOL_AFHI,
201 /** The chunk table info and the chunk table of the audio file. */
202 AFTCOL_CHUNKS,
203 /** The number of columns of this table. */
204 NUM_AFT_COLUMNS
205 };
206
207 static struct osl_column_description aft_cols[] = {
208 [AFTCOL_HASH] = {
209 .storage_type = OSL_MAPPED_STORAGE,
210 .storage_flags = OSL_RBTREE | OSL_FIXED_SIZE | OSL_UNIQUE,
211 .name = "hash",
212 .compare_function = osl_hash_compare,
213 .data_size = HASH_SIZE
214 },
215 [AFTCOL_PATH] = {
216 .storage_type = OSL_MAPPED_STORAGE,
217 .storage_flags = OSL_RBTREE | OSL_UNIQUE,
218 .name = "path",
219 .compare_function = string_compare,
220 },
221 [AFTCOL_AFSI] = {
222 .storage_type = OSL_MAPPED_STORAGE,
223 .storage_flags = OSL_FIXED_SIZE,
224 .name = "afs_info",
225 .data_size = AFSI_SIZE
226 },
227 [AFTCOL_AFHI] = {
228 .storage_type = OSL_MAPPED_STORAGE,
229 .name = "afh_info",
230 },
231 [AFTCOL_CHUNKS] = {
232 .storage_type = OSL_DISK_STORAGE,
233 .name = "chunks",
234 }
235 };
236
237 static struct osl_table_description audio_file_table_desc = {
238 .name = "audio_files",
239 .num_columns = NUM_AFT_COLUMNS,
240 .flags = OSL_LARGE_TABLE,
241 .column_descriptions = aft_cols
242 };
243
244 /* We don't want * dot or dot-dot anywhere. */
245 static int verify_dotfile(const char *rest)
246 {
247 /*
248 * The first character was '.', but that has already been discarded, we
249 * now test the rest.
250 */
251 switch (*rest) {
252 case '\0': case '/': /* /foo/. and /foo/./bar are not ok */
253 return -1;
254 case '.': /* path start with /foo/.. */
255 if (rest[1] == '\0' || rest[1] == '/')
256 return -1; /* /foo/.. or /foo/../bar are not ok */
257 /* /foo/..bar is ok */
258 }
259 return 1;
260 }
261
262 /*
263 * We fundamentally don't like some paths: We don't want double slashes or
264 * slashes at the end that can make pathnames ambiguous.
265 */
266 static int verify_path(const char *orig_path, char **resolved_path)
267 {
268 char c;
269 size_t len;
270 char *path;
271
272 if (*orig_path != '/') /* we only accept absolute paths */
273 return -E_BAD_PATH;
274 len = strlen(orig_path);
275 *resolved_path = para_strdup(orig_path);
276 path = *resolved_path;
277 while (len > 1 && path[--len] == '/')
278 path[len] = '\0'; /* remove slash at the end */
279 c = *path++;
280 while (c) {
281 if (c == '/') {
282 c = *path++;
283 switch (c) {
284 case '/': /* double slash */
285 goto bad_path;
286 case '.':
287 if (verify_dotfile(path) < 0)
288 goto bad_path;
289 default:
290 continue;
291 }
292 }
293 c = *path++;
294 }
295 return 1;
296 bad_path:
297 free(*resolved_path);
298 return -E_BAD_PATH;
299 }
300
301 /** The on-disk layout of a afhi struct. */
302 enum afhi_offsets {
303 /** Where the number of seconds is stored. */
304 AFHI_SECONDS_TOTAL_OFFSET = 0,
305 /** Position of the bitrate. */
306 AFHI_BITRATE_OFFSET = 4,
307 /** Position of the frequency. */
308 AFHI_FREQUENCY_OFFSET = 8,
309 /** Number of channels is stored here. */
310 AFHI_CHANNELS_OFFSET = 12,
311 /** The tag info position. */
312 AFHI_INFO_STRING_OFFSET = 13,
313 /** Minimal on-disk size of a valid afhi struct. */
314 MIN_AFHI_SIZE = 14
315 };
316
317 static unsigned sizeof_afhi_buf(const struct audio_format_info *afhi)
318 {
319 if (!afhi)
320 return 0;
321 return strlen(afhi->info_string) + MIN_AFHI_SIZE;
322 }
323
324 static void save_afhi(struct audio_format_info *afhi, char *buf)
325 {
326 if (!afhi)
327 return;
328 write_u32(buf + AFHI_SECONDS_TOTAL_OFFSET,
329 afhi->seconds_total);
330 write_u32(buf + AFHI_BITRATE_OFFSET, afhi->bitrate);
331 write_u32(buf + AFHI_FREQUENCY_OFFSET, afhi->frequency);
332 write_u8(buf + AFHI_CHANNELS_OFFSET, afhi->channels);
333 strcpy(buf + AFHI_INFO_STRING_OFFSET, afhi->info_string); /* OK */
334 PARA_DEBUG_LOG("last byte written: %p\n", buf + AFHI_INFO_STRING_OFFSET + strlen(afhi->info_string));
335 }
336
337 static void load_afhi(const char *buf, struct audio_format_info *afhi)
338 {
339 afhi->seconds_total = read_u32(buf + AFHI_SECONDS_TOTAL_OFFSET);
340 afhi->bitrate = read_u32(buf + AFHI_BITRATE_OFFSET);
341 afhi->frequency = read_u32(buf + AFHI_FREQUENCY_OFFSET);
342 afhi->channels = read_u8(buf + AFHI_CHANNELS_OFFSET);
343 strcpy(afhi->info_string, buf + AFHI_INFO_STRING_OFFSET);
344 }
345
346 static unsigned sizeof_chunk_info_buf(struct audio_format_info *afhi)
347 {
348 if (!afhi)
349 return 0;
350 return 4 * afhi->chunks_total + 20;
351
352 }
353
354 /** The offsets of the data contained in the AFTCOL_CHUNKS column. */
355 enum chunk_info_offsets{
356 /** The total number of chunks (4 bytes). */
357 CHUNKS_TOTAL_OFFSET = 0,
358 /** The length of the audio file header (4 bytes). */
359 HEADER_LEN_OFFSET = 4,
360 /** The start of the audio file header (4 bytes). */
361 HEADER_OFFSET_OFFSET = 8,
362 /** The seconds part of the chunk time (4 bytes). */
363 CHUNK_TV_TV_SEC_OFFSET = 12,
364 /** The microseconds part of the chunk time (4 bytes). */
365 CHUNK_TV_TV_USEC = 16,
366 /** Chunk table entries start here. */
367 CHUNK_TABLE_OFFSET = 20,
368 };
369
370 /* TODO: audio format handlers could just produce this */
371 static void save_chunk_info(struct audio_format_info *afhi, char *buf)
372 {
373 int i;
374
375 if (!afhi)
376 return;
377 write_u32(buf + CHUNKS_TOTAL_OFFSET, afhi->chunks_total);
378 write_u32(buf + HEADER_LEN_OFFSET, afhi->header_len);
379 write_u32(buf + HEADER_OFFSET_OFFSET, afhi->header_offset);
380 write_u32(buf + CHUNK_TV_TV_SEC_OFFSET, afhi->chunk_tv.tv_sec);
381 write_u32(buf + CHUNK_TV_TV_USEC, afhi->chunk_tv.tv_usec);
382 for (i = 0; i < afhi->chunks_total; i++)
383 write_u32(buf + CHUNK_TABLE_OFFSET + 4 * i, afhi->chunk_table[i]);
384 }
385
386 static int load_chunk_info(struct osl_object *obj, struct audio_format_info *afhi)
387 {
388 char *buf = obj->data;
389 int i;
390
391 if (obj->size < CHUNK_TABLE_OFFSET)
392 return -E_BAD_DATA_SIZE;
393
394 afhi->chunks_total = read_u32(buf + CHUNKS_TOTAL_OFFSET);
395 afhi->header_len = read_u32(buf + HEADER_LEN_OFFSET);
396 afhi->header_offset = read_u32(buf + HEADER_OFFSET_OFFSET);
397 afhi->chunk_tv.tv_sec = read_u32(buf + CHUNK_TV_TV_SEC_OFFSET);
398 afhi->chunk_tv.tv_usec = read_u32(buf + CHUNK_TV_TV_USEC);
399
400 if (afhi->chunks_total * 4 + CHUNK_TABLE_OFFSET > obj->size)
401 return -E_BAD_DATA_SIZE;
402 afhi->chunk_table = para_malloc(afhi->chunks_total * sizeof(size_t));
403 for (i = 0; i < afhi->chunks_total; i++)
404 afhi->chunk_table[i] = read_u32(buf + CHUNK_TABLE_OFFSET + 4 * i);
405 return 1;
406 }
407
408 /**
409 * Get the row of the audio file table corresponding to the given path.
410 *
411 * \param path The full path of the audio file.
412 * \param row Result pointer.
413 *
414 * \return The return value of the underlying call to osl_get_row().
415 */
416 int aft_get_row_of_path(const char *path, struct osl_row **row)
417 {
418 struct osl_object obj = {.data = (char *)path, .size = strlen(path) + 1};
419
420 return osl_get_row(audio_file_table, AFTCOL_PATH, &obj, row);
421 }
422
423 /**
424 * Get the row of the audio file table corresponding to the given hash value.
425 *
426 * \param hash The hash value of the desired audio file.
427 * \param row resul pointer.
428 *
429 * \return The return value of the underlying call to osl_get_row().
430 */
431 int aft_get_row_of_hash(HASH_TYPE *hash, struct osl_row **row)
432 {
433 const struct osl_object obj = {.data = hash, .size = HASH_SIZE};
434 return osl_get_row(audio_file_table, AFTCOL_HASH, &obj, row);
435 }
436
437 /**
438 * Get the osl object holding the audio file selector info of a row.
439 *
440 * \param row Pointer to a row in the audio file table.
441 * \param obj Result pointer.
442 *
443 * \return The return value of the underlying call to osl_get_object().
444 */
445 int get_afsi_object_of_row(const struct osl_row *row, struct osl_object *obj)
446 {
447 return osl_get_object(audio_file_table, row, AFTCOL_AFSI, obj);
448 }
449
450 /**
451 * Get the osl object holding the audio file selector info, given a path.
452 *
453 *
454 * \param path The full path of the audio file.
455 * \param obj Result pointer.
456 *
457 * \return Positive on success, negative on errors.
458 */
459 int get_afsi_object_of_path(const char *path, struct osl_object *obj)
460 {
461 struct osl_row *row;
462 int ret = aft_get_row_of_path(path, &row);
463 if (ret < 0)
464 return ret;
465 return get_afsi_object_of_row(row, obj);
466 }
467
468 /**
469 * Get the audio file selector info, given a row of the audio file table.
470 *
471 * \param row Pointer to a row in the audio file table.
472 * \param afsi Result pointer.
473 *
474 * \return Positive on success, negative on errors.
475 */
476 int get_afsi_of_row(const struct osl_row *row, struct afs_info *afsi)
477 {
478 struct osl_object obj;
479 int ret = get_afsi_object_of_row(row, &obj);
480 if (ret < 0)
481 return ret;
482 return load_afsi(afsi, &obj);
483 }
484
485 /**
486 * Get the audio file selector info, given the path of an audio table.
487 *
488 * \param path The full path of the audio file.
489 * \param afsi Result pointer.
490 *
491 * \return Positive on success, negative on errors.
492 */
493 int get_afsi_of_path(const char *path, struct afs_info *afsi)
494 {
495 struct osl_object obj;
496 int ret = get_afsi_object_of_path(path, &obj);
497 if (ret < 0)
498 return ret;
499 return load_afsi(afsi, &obj);
500 }
501
502 /**
503 * Get the path of an audio file, given a row of the audio file table.
504 *
505 * \param row Pointer to a row in the audio file table.
506 * \param path Result pointer.
507 *
508 * \return Positive on success, negative on errors.
509 */
510 int get_audio_file_path_of_row(const struct osl_row *row, char **path)
511 {
512 struct osl_object path_obj;
513 int ret = osl_get_object(audio_file_table, row, AFTCOL_PATH,
514 &path_obj);
515 if (ret < 0)
516 return ret;
517 *path = path_obj.data;
518 return 1;
519 }
520
521 /**
522 * Get the object containing the hash value of an audio file, given a row.
523 *
524 * \param row Pointer to a row of the audio file table.
525 * \param obj Result pointer.
526 *
527 * \return The return value of the underlying call to osl_get_object().
528 *
529 * \sa get_hash_of_row().
530 */
531 static int get_hash_object_of_aft_row(const struct osl_row *row, struct osl_object *obj)
532 {
533 return osl_get_object(audio_file_table, row, AFTCOL_HASH, obj);
534 }
535
536 /**
537 * Get the hash value of an audio file, given a row of the audio file table.
538 *
539 * \param row Pointer to a row of the audio file table.
540 * \param hash Result pointer.
541 *
542 * \a hash points to mapped data and must not be freed by the caller.
543 *
544 * \return The return value of the underlying call to
545 * get_hash_object_of_aft_row().
546 */
547 static int get_hash_of_row(const struct osl_row *row, HASH_TYPE **hash)
548 {
549 struct osl_object obj;
550 int ret = get_hash_object_of_aft_row(row, &obj);
551
552 if (ret < 0)
553 return ret;
554 *hash = obj.data;
555 return 1;
556 }
557
558 /**
559 * Get the audio format handler info, given a row of the audio file table.
560 *
561 * \param row Pointer to a row of the audio file table.
562 * \param afhi Result pointer.
563 *
564 * \return The return value of the underlying call to osl_get_object().
565 *
566 * \sa get_chunk_table_of_row().
567 */
568 int get_afhi_of_row(const struct osl_row *row, struct audio_format_info *afhi)
569 {
570 struct osl_object obj;
571 int ret = osl_get_object(audio_file_table, row, AFTCOL_AFHI,
572 &obj);
573 if (ret < 0)
574 return ret;
575 load_afhi(obj.data, afhi);
576 return 1;
577 }
578
579 /**
580 * Get the chunk table of an audio file, given a row of the audio file table.
581 *
582 * \param row Pointer to a row of the audio file table.
583 * \param afhi Result pointer.
584 *
585 * \return The return value of the underlying call to osl_open_disk_object().
586 *
587 * \sa get_afhi_of_row().
588 */
589 static int get_chunk_table_of_row(const struct osl_row *row, struct audio_format_info *afhi)
590 {
591 struct osl_object obj;
592 int ret = osl_open_disk_object(audio_file_table, row, AFTCOL_CHUNKS,
593 &obj);
594 if (ret < 0)
595 return ret;
596 ret = load_chunk_info(&obj, afhi);
597 osl_close_disk_object(&obj);
598 return ret;
599 }
600
601 /**
602 * Mmap the given audio file and update statistics.
603 *
604 * \param aft_row Determines the audio file to be opened and updated.
605 * \param afd Result pointer.
606 *
607 * On success, the numplayed field of the audio file selector info is increased
608 * and the lastplayed time is set to the current time. Finally, the score of
609 * the audio file is updated.
610 *
611 * \return Positive on success, negative on errors.
612 */
613 int open_and_update_audio_file(struct osl_row *aft_row, struct audio_file_data *afd)
614 {
615 HASH_TYPE *aft_hash, file_hash[HASH_SIZE];
616 struct osl_object afsi_obj;
617 struct afs_info new_afsi;
618 int ret = get_hash_of_row(aft_row, &aft_hash);
619
620 if (ret < 0)
621 return ret;
622 ret = get_audio_file_path_of_row(aft_row, &afd->path);
623 if (ret < 0)
624 return ret;
625 ret = get_afsi_object_of_row(aft_row, &afsi_obj);
626 if (ret < 0)
627 return ret;
628 ret = load_afsi(&afd->afsi, &afsi_obj);
629 if (ret < 0)
630 return ret;
631 ret = get_afhi_of_row(aft_row, &afd->afhi);
632 if (ret < 0)
633 return ret;
634 ret = get_chunk_table_of_row(aft_row, &afd->afhi);
635 if (ret < 0)
636 return ret;
637 ret = mmap_full_file(afd->path, O_RDONLY, &afd->map);
638 if (ret < 0)
639 goto err;
640 hash_function(afd->map.data, afd->map.size, file_hash);
641 ret = -E_HASH_MISMATCH;
642 if (hash_compare(file_hash, aft_hash))
643 goto err;
644 new_afsi = afd->afsi;
645 new_afsi.num_played++;
646 new_afsi.last_played = time(NULL);
647 save_afsi(&new_afsi, &afsi_obj); /* in-place update */
648 if (afd->current_play_mode == PLAY_MODE_PLAYLIST)
649 ret = playlist_update_audio_file(aft_row);
650 else {
651 struct afsi_change_event_data aced = {.aft_row = aft_row,
652 .old_afsi = &afd->afsi};
653 afs_event(AFSI_CHANGE, NULL, &aced);
654 }
655 return ret;
656 err:
657 free(afd->afhi.chunk_table);
658 return ret;
659 }
660
661 static int get_local_time(uint64_t *seconds, char *buf, size_t size,
662 time_t current_time, enum ls_listing_mode lm)
663 {
664 struct tm t;
665
666 if (!localtime_r((time_t *)seconds, &t))
667 return -E_LOCALTIME;
668 if (lm == LS_MODE_MBOX) {
669 if (!strftime(buf, size, "%c", &t))
670 return -E_STRFTIME;
671 return 1;
672 }
673 if (*seconds + 6 * 30 * 24 * 3600 > current_time) {
674 if (!strftime(buf, size, "%b %e %k:%M", &t))
675 return -E_STRFTIME;
676 return 1;
677 }
678 if (!strftime(buf, size, "%b %e %Y", &t))
679 return -E_STRFTIME;
680 return 1;
681 }
682
683 /** Compute the number of (decimal) digits of a number. */
684 #define GET_NUM_DIGITS(x, num) { \
685 typeof((x)) _tmp = PARA_ABS(x); \
686 *num = 1; \
687 if ((x)) \
688 while ((_tmp) > 9) { \
689 (_tmp) /= 10; \
690 (*num)++; \
691 } \
692 }
693
694 static short unsigned get_duration_width(int seconds)
695 {
696 short unsigned width;
697 unsigned hours = seconds / 3600, mins = (seconds % 3600) / 60;
698
699 if (!hours) /* less than one hour => m:ss or mm:ss => 4 or 5 digits */
700 return 4 + (mins > 9);
701 /* more than one hour => h:mm:ss, hh:mm:ss, hhh:mm:ss, ... */
702 GET_NUM_DIGITS(hours, &width);
703 return width + 6;
704 }
705
706 static void get_duration_buf(int seconds, char *buf, short unsigned max_width)
707 {
708 unsigned hours = seconds / 3600, mins = (seconds % 3600) / 60;
709
710 if (!hours) /* m:ss or mm:ss */
711 sprintf(buf, "%*u:%02u", max_width - 3, mins, seconds % 60);
712 else /* more than one hour => h:mm:ss, hh:mm:ss, hhh:mm:ss, ... */
713 sprintf(buf, "%*u:%02u:%02u", max_width - 6, hours, mins,
714 seconds % 60);
715 }
716
717 static char *make_attribute_line(const char *att_bitmap, struct afs_info *afsi)
718 {
719 char *att_text, *att_line;
720
721 get_attribute_text(&afsi->attributes, " ", &att_text);
722 if (!att_text)
723 return para_strdup(att_bitmap);
724 att_line = make_message("%s (%s)", att_bitmap, att_text);
725 free(att_text);
726 return att_line;
727 }
728
729 static char *make_lyrics_line(struct afs_info *afsi)
730 {
731 char *lyrics_name;
732
733 lyr_get_name_by_id(afsi->lyrics_id, &lyrics_name);
734 if (!lyrics_name)
735 return make_message("%u", afsi->lyrics_id);
736 return make_message("%u (%s)", afsi->lyrics_id, lyrics_name);
737 }
738
739 static char *make_image_line(struct afs_info *afsi)
740 {
741 char *image_name;
742 img_get_name_by_id(afsi->image_id, &image_name);
743 if (!image_name)
744 return make_message("%u", afsi->image_id);
745 return make_message("%u (%s)", afsi->image_id, image_name);
746 }
747
748 static int print_list_item(struct ls_data *d, struct ls_options *opts,
749 struct para_buffer *b, time_t current_time)
750 {
751 int ret;
752 char att_buf[65];
753 char last_played_time[30];
754 char duration_buf[30]; /* nobody has an audio file long enough to overflow this */
755 char score_buf[30] = "";
756 struct afs_info *afsi = &d->afsi;
757 struct audio_format_info *afhi = &d->afhi;
758 struct ls_widths *w = &opts->widths;
759 int have_score = opts->flags & LS_FLAG_ADMISSIBLE_ONLY;
760 char asc_hash[2 * HASH_SIZE + 1];
761 char *att_line, *lyrics_line, *image_line;
762
763 if (opts->mode == LS_MODE_SHORT) {
764 para_printf(b, "%s\n", d->path);
765 return 1;
766 }
767 get_attribute_bitmap(&afsi->attributes, att_buf);
768 ret = get_local_time(&afsi->last_played, last_played_time,
769 sizeof(last_played_time), current_time, opts->mode);
770 if (ret < 0)
771 return ret;
772 get_duration_buf(afhi->seconds_total, duration_buf, w->duration_width);
773 if (have_score) {
774 if (opts->mode == LS_MODE_LONG)
775 sprintf(score_buf, "%*li ", w->score_width, d->score);
776 else
777 sprintf(score_buf, "%li ", d->score);
778 }
779
780 if (opts->mode == LS_MODE_LONG) {
781 para_printf(b,
782 "%s" /* score */
783 "%s " /* attributes */
784 "%*d " /* image_id */
785 "%*d " /* lyrics_id */
786 "%*d " /* bitrate */
787 "%s " /* audio format */
788 "%*d " /* frequency */
789 "%d " /* channels */
790 "%s " /* duration */
791 "%*d " /* num_played */
792 "%s " /* last_played */
793 "%s\n", /* path */
794 score_buf,
795 att_buf,
796 w->image_id_width, afsi->image_id,
797 w->lyrics_id_width, afsi->lyrics_id,
798 w->bitrate_width, afhi->bitrate,
799 audio_format_name(afsi->audio_format_id),
800 w->frequency_width, afhi->frequency,
801 afhi->channels,
802 duration_buf,
803 w->num_played_width, afsi->num_played,
804 last_played_time,
805 d->path
806 );
807 return 1;
808 }
809 hash_to_asc(d->hash, asc_hash);
810 att_line = make_attribute_line(att_buf, afsi);
811 lyrics_line = make_lyrics_line(afsi);
812 image_line = make_image_line(afsi);
813 if (opts->mode == LS_MODE_VERBOSE) {
814
815 para_printf(b,
816 "%s: %s\n" /* path */
817 "%s%s%s" /* score */
818 "attributes: %s\n"
819 "hash: %s\n"
820 "image_id: %s\n"
821 "lyrics_id: %s\n"
822 "bitrate: %dkbit/s\n"
823 "format: %s\n"
824 "frequency: %dHz\n"
825 "channels: %d\n"
826 "duration: %s\n"
827 "num_played: %d\n"
828 "last_played: %s\n"
829 "tag info: %s\n",
830 (opts->flags & LS_FLAG_FULL_PATH)?
831 "path" : "file", d->path,
832 have_score? "score: " : "", score_buf,
833 have_score? "\n" : "",
834 att_line,
835 asc_hash,
836 image_line,
837 lyrics_line,
838 afhi->bitrate,
839 audio_format_name(afsi->audio_format_id),
840 afhi->frequency,
841 afhi->channels,
842 duration_buf,
843 afsi->num_played,
844 last_played_time,
845 afhi->info_string
846 );
847 } else { /* mbox mode */
848 struct osl_object lyrics_def;
849 lyr_get_def_by_id(afsi->lyrics_id, &lyrics_def);
850 para_printf(b,
851 "From foo@localhost %s\n"
852 "Received: from\nTo: bar\nFrom: a\n"
853 "Subject: %s\n\n" /* path */
854 "%s%s%s" /* score */
855 "attributes: %s\n"
856 "hash: %s\n"
857 "image_id: %s\n"
858 "lyrics_id: %s\n"
859 "bitrate: %dkbit/s\n"
860 "format: %s\n"
861 "frequency: %dHz\n"
862 "channels: %d\n"
863 "duration: %s\n"
864 "num_played: %d\n"
865 "tag info: %s\n"
866 "%s%s\n",
867 last_played_time,
868 d->path,
869 have_score? "score: " : "", score_buf,
870 have_score? "\n" : "",
871 att_line,
872 asc_hash,
873 image_line,
874 lyrics_line,
875 afhi->bitrate,
876 audio_format_name(afsi->audio_format_id),
877 afhi->frequency,
878 afhi->channels,
879 duration_buf,
880 afsi->num_played,
881 afhi->info_string,
882 lyrics_def.data? "Lyrics:\n~~~~~~~\n" : "",
883 lyrics_def.data? (char *)lyrics_def.data : ""
884 );
885 if (lyrics_def.data)
886 osl_close_disk_object(lyrics_def.data);
887 }
888 free(att_line);
889 free(lyrics_line);
890 free(image_line);
891 return 1;
892 }
893
894 static int ls_audio_format_compare(const void *a, const void *b)
895 {
896 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
897 return NUM_COMPARE(d1->afsi.audio_format_id, d2->afsi.audio_format_id);
898 }
899
900 static int ls_duration_compare(const void *a, const void *b)
901 {
902 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
903 return NUM_COMPARE(d1->afhi.seconds_total, d2->afhi.seconds_total);
904 }
905
906 static int ls_bitrate_compare(const void *a, const void *b)
907 {
908 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
909 return NUM_COMPARE(d1->afhi.bitrate, d2->afhi.bitrate);
910 }
911
912 static int ls_lyrics_id_compare(const void *a, const void *b)
913 {
914 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
915 return NUM_COMPARE(d1->afsi.lyrics_id, d2->afsi.lyrics_id);
916 }
917
918 static int ls_image_id_compare(const void *a, const void *b)
919 {
920 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
921 return NUM_COMPARE(d1->afsi.image_id, d2->afsi.image_id);
922 }
923
924 static int ls_channels_compare(const void *a, const void *b)
925 {
926 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
927 return NUM_COMPARE(d1->afhi.channels, d2->afhi.channels);
928 }
929
930 static int ls_frequency_compare(const void *a, const void *b)
931 {
932 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
933 return NUM_COMPARE(d1->afhi.frequency, d2->afhi.frequency);
934 }
935
936 static int ls_num_played_compare(const void *a, const void *b)
937 {
938 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
939 return NUM_COMPARE(d1->afsi.num_played, d2->afsi.num_played);
940 }
941
942 static int ls_last_played_compare(const void *a, const void *b)
943 {
944 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
945 return NUM_COMPARE(d1->afsi.last_played, d2->afsi.last_played);
946 }
947
948 static int ls_score_compare(const void *a, const void *b)
949 {
950 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
951 return NUM_COMPARE(d1->score, d2->score);
952 }
953
954 static int ls_path_compare(const void *a, const void *b)
955 {
956 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
957 return strcmp(d1->path, d2->path);
958 }
959
960 static int sort_matching_paths(struct ls_options *options)
961 {
962 size_t nmemb = options->num_matching_paths;
963 size_t size = sizeof(*options->data_ptr);
964 int (*compar)(const void *, const void *);
965 int i;
966
967 options->data_ptr = para_malloc(nmemb * sizeof(*options->data_ptr));
968 for (i = 0; i < nmemb; i++)
969 options->data_ptr[i] = options->data + i;
970
971 /* In these cases the array is already sorted */
972 if (options->sorting == LS_SORT_BY_PATH
973 && !(options->flags & LS_FLAG_ADMISSIBLE_ONLY)
974 && (options->flags & LS_FLAG_FULL_PATH))
975 return 1;
976 if (options->sorting == LS_SORT_BY_SCORE &&
977 options->flags & LS_FLAG_ADMISSIBLE_ONLY)
978 return 1;
979
980 switch (options->sorting) {
981 case LS_SORT_BY_PATH:
982 compar = ls_path_compare; break;
983 case LS_SORT_BY_SCORE:
984 compar = ls_score_compare; break;
985 case LS_SORT_BY_LAST_PLAYED:
986 compar = ls_last_played_compare; break;
987 case LS_SORT_BY_NUM_PLAYED:
988 compar = ls_num_played_compare; break;
989 case LS_SORT_BY_FREQUENCY:
990 compar = ls_frequency_compare; break;
991 case LS_SORT_BY_CHANNELS:
992 compar = ls_channels_compare; break;
993 case LS_SORT_BY_IMAGE_ID:
994 compar = ls_image_id_compare; break;
995 case LS_SORT_BY_LYRICS_ID:
996 compar = ls_lyrics_id_compare; break;
997 case LS_SORT_BY_BITRATE:
998 compar = ls_bitrate_compare; break;
999 case LS_SORT_BY_DURATION:
1000 compar = ls_duration_compare; break;
1001 case LS_SORT_BY_AUDIO_FORMAT:
1002 compar = ls_audio_format_compare; break;
1003 default:
1004 return -E_BAD_SORT;
1005 }
1006 qsort(options->data_ptr, nmemb, size, compar);
1007 return 1;
1008 }
1009
1010 /* row is either an aft_row or a row of the score table */
1011 /* TODO: Only compute widths if we need them */
1012 static int prepare_ls_row(struct osl_row *row, void *ls_opts)
1013 {
1014 int ret, i;
1015 struct ls_options *options = ls_opts;
1016 struct ls_data *d;
1017 struct ls_widths *w;
1018 unsigned short num_digits;
1019 unsigned tmp;
1020 struct osl_row *aft_row;
1021 long score;
1022 char *path;
1023
1024 if (options->flags & LS_FLAG_ADMISSIBLE_ONLY) {
1025 ret = get_score_and_aft_row(row, &score, &aft_row);
1026 if (ret < 0)
1027 return ret;
1028 } else
1029 aft_row = row;
1030 ret = get_audio_file_path_of_row(aft_row, &path);
1031 if (ret < 0)
1032 return ret;
1033 if (!(options->flags & LS_FLAG_FULL_PATH)) {
1034 char *p = strrchr(path, '/');
1035 if (p)
1036 path = p + 1;
1037 }
1038 if (options->num_patterns) {
1039 for (i = 0; i < options->num_patterns; i++) {
1040 ret = fnmatch(options->patterns[i], path, 0);
1041 if (!ret)
1042 break;
1043 if (ret == FNM_NOMATCH)
1044 continue;
1045 return -E_FNMATCH;
1046 }
1047 if (i >= options->num_patterns) /* no match */
1048 return 1;
1049 }
1050 tmp = options->num_matching_paths++;
1051 if (options->num_matching_paths > options->array_size) {
1052 options->array_size++;
1053 options->array_size *= 2;
1054 options->data = para_realloc(options->data, options->array_size
1055 * sizeof(*options->data));
1056 }
1057 d = options->data + tmp;
1058 ret = get_afsi_of_row(aft_row, &d->afsi);
1059 if (ret < 0)
1060 return ret;
1061 ret = get_afhi_of_row(aft_row, &d->afhi);
1062 if (ret < 0)
1063 return ret;
1064 d->path = path;
1065 ret = get_hash_of_row(aft_row, &d->hash);
1066 if (ret < 0)
1067 return ret;
1068 w = &options->widths;
1069 GET_NUM_DIGITS(d->afsi.image_id, &num_digits);
1070 w->image_id_width = PARA_MAX(w->image_id_width, num_digits);
1071 GET_NUM_DIGITS(d->afsi.lyrics_id, &num_digits);
1072 w->lyrics_id_width = PARA_MAX(w->lyrics_id_width, num_digits);
1073 GET_NUM_DIGITS(d->afhi.bitrate, &num_digits);
1074 w->bitrate_width = PARA_MAX(w->bitrate_width, num_digits);
1075 GET_NUM_DIGITS(d->afhi.frequency, &num_digits);
1076 w->frequency_width = PARA_MAX(w->frequency_width, num_digits);
1077 GET_NUM_DIGITS(d->afsi.num_played, &num_digits);
1078 w->num_played_width = PARA_MAX(w->num_played_width, num_digits);
1079 /* get the number of chars to print this amount of time */
1080 tmp = get_duration_width(d->afhi.seconds_total);
1081 w->duration_width = PARA_MAX(w->duration_width, tmp);
1082 if (options->flags & LS_FLAG_ADMISSIBLE_ONLY) {
1083 GET_NUM_DIGITS(score, &num_digits);
1084 num_digits++; /* add one for the sign (space or "-") */
1085 w->score_width = PARA_MAX(w->score_width, num_digits);
1086 d->score = score;
1087 }
1088 return 1;
1089 }
1090
1091 static int com_ls_callback(const struct osl_object *query,
1092 struct osl_object *ls_output)
1093 {
1094 struct ls_options *opts = query->data;
1095 char *p, *pattern_start = (char *)query->data + sizeof(*opts);
1096 struct para_buffer b = {.buf = NULL, .size = 0};
1097 int i = 0, ret;
1098 time_t current_time;
1099
1100
1101 if (opts->num_patterns) {
1102 opts->patterns = para_malloc(opts->num_patterns * sizeof(char *));
1103 for (i = 0, p = pattern_start; i < opts->num_patterns; i++) {
1104 opts->patterns[i] = p;
1105 p += strlen(p) + 1;
1106 }
1107 } else
1108 opts->patterns = NULL;
1109 if (opts->flags & LS_FLAG_ADMISSIBLE_ONLY)
1110 ret = admissible_file_loop(opts, prepare_ls_row);
1111 else
1112 ret = osl_rbtree_loop(audio_file_table, AFTCOL_PATH, opts,
1113 prepare_ls_row);
1114 if (ret < 0)
1115 goto out;
1116 ret = opts->num_patterns? -E_NO_MATCH : 0;
1117 if (!opts->num_matching_paths)
1118 goto out;
1119 ret = sort_matching_paths(opts);
1120 if (ret < 0)
1121 goto out;
1122 time(&current_time);
1123 if (opts->flags & LS_FLAG_REVERSE)
1124 for (i = opts->num_matching_paths - 1; i >= 0; i--) {
1125 ret = print_list_item(opts->data_ptr[i], opts, &b, current_time);
1126 if (ret < 0)
1127 break;
1128 }
1129 else
1130 for (i = 0; i < opts->num_matching_paths; i++) {
1131 ret = print_list_item(opts->data_ptr[i], opts, &b, current_time);
1132 if (ret < 0)
1133 break;
1134 }
1135 ret = 1;
1136 out:
1137 ls_output->data = b.buf;
1138 ls_output->size = b.size;
1139 free(opts->data);
1140 free(opts->data_ptr);
1141 free(opts->patterns);
1142 return ret;
1143 }
1144
1145 /*
1146 * TODO: flags -h (sort by hash) -lm (list in mbox format)
1147 *
1148 * long list: list hash, attributes as (xx--x-x-), file size, lastplayed
1149 * full list: list everything, including afsi, afhi, atts as clear text
1150 *
1151 * */
1152 int com_afs_ls(int fd, int argc, char * const * const argv)
1153 {
1154 int i, ret;
1155 unsigned flags = 0;
1156 enum ls_sorting_method sort = LS_SORT_BY_PATH;
1157 enum ls_listing_mode mode = LS_MODE_SHORT;
1158 struct ls_options opts = {.patterns = NULL};
1159 struct osl_object query = {.data = &opts, .size = sizeof(opts)},
1160 ls_output;
1161
1162 for (i = 1; i < argc; i++) {
1163 const char *arg = argv[i];
1164 if (arg[0] != '-')
1165 break;
1166 if (!strcmp(arg, "--")) {
1167 i++;
1168 break;
1169 }
1170 if (!strncmp(arg, "-l", 2)) {
1171 if (!*(arg + 2)) {
1172 mode = LS_MODE_LONG;
1173 continue;
1174 }
1175 if (*(arg + 3))
1176 return -E_AFT_SYNTAX;
1177 switch(*(arg + 2)) {
1178 case 's':
1179 mode = LS_MODE_SHORT;
1180 continue;
1181 case 'l':
1182 mode = LS_MODE_LONG;
1183 continue;
1184 case 'v':
1185 mode = LS_MODE_VERBOSE;
1186 continue;
1187 case 'm':
1188 mode = LS_MODE_MBOX;
1189 continue;
1190 default:
1191 return -E_AFT_SYNTAX;
1192 }
1193 }
1194 if (!strcmp(arg, "-p")) {
1195 flags |= LS_FLAG_FULL_PATH;
1196 continue;
1197 }
1198 if (!strcmp(arg, "-a")) {
1199 flags |= LS_FLAG_ADMISSIBLE_ONLY;
1200 continue;
1201 }
1202 if (!strcmp(arg, "-r")) {
1203 flags |= LS_FLAG_REVERSE;
1204 continue;
1205 }
1206 if (!strncmp(arg, "-s", 2)) {
1207 if (!*(arg + 2) || *(arg + 3))
1208 return -E_AFT_SYNTAX;
1209 switch(*(arg + 2)) {
1210 case 'p':
1211 sort = LS_SORT_BY_PATH;
1212 continue;
1213 case 's': /* -ss implies -a */
1214 sort = LS_SORT_BY_SCORE;
1215 flags |= LS_FLAG_ADMISSIBLE_ONLY;
1216 continue;
1217 case 'l':
1218 sort = LS_SORT_BY_LAST_PLAYED;
1219 continue;
1220 case 'n':
1221 sort = LS_SORT_BY_NUM_PLAYED;
1222 continue;
1223 case 'f':
1224 sort = LS_SORT_BY_FREQUENCY;
1225 continue;
1226 case 'c':
1227 sort = LS_SORT_BY_CHANNELS;
1228 continue;
1229 case 'i':
1230 sort = LS_SORT_BY_IMAGE_ID;
1231 continue;
1232 case 'y':
1233 sort = LS_SORT_BY_LYRICS_ID;
1234 continue;
1235 case 'b':
1236 sort = LS_SORT_BY_BITRATE;
1237 continue;
1238 case 'd':
1239 sort = LS_SORT_BY_DURATION;
1240 continue;
1241 case 'a':
1242 sort = LS_SORT_BY_AUDIO_FORMAT;
1243 continue;
1244 default:
1245 return -E_AFT_SYNTAX;
1246 }
1247 }
1248 return -E_AFT_SYNTAX;
1249 }
1250 opts.flags = flags;
1251 opts.sorting = sort;
1252 opts.mode = mode;
1253 opts.num_patterns = argc - i;
1254 ret = send_option_arg_callback_request(&query, opts.num_patterns,
1255 argv + i, com_ls_callback, &ls_output);
1256 if (ret > 0) {
1257 ret = send_buffer(fd, (char *)ls_output.data);
1258 free(ls_output.data);
1259 }
1260 return ret;
1261 }
1262
1263 /**
1264 * Call the given function for each file in the audio file table.
1265 *
1266 * \param private_data An arbitrary data pointer, passed to \a func.
1267 * \param func The custom function to be called.
1268 *
1269 * \return The return value of the underlying call to osl_rbtree_loop().
1270 */
1271 int audio_file_loop(void *private_data, osl_rbtree_loop_func *func)
1272 {
1273 return osl_rbtree_loop(audio_file_table, AFTCOL_HASH, private_data,
1274 func);
1275 }
1276
1277 static struct osl_row *find_hash_sister(HASH_TYPE *hash)
1278 {
1279 const struct osl_object obj = {.data = hash, .size = HASH_SIZE};
1280 struct osl_row *row;
1281
1282 osl_get_row(audio_file_table, AFTCOL_HASH, &obj, &row);
1283 return row;
1284 }
1285
1286 enum aft_row_offsets {
1287 AFTROW_AFHI_OFFSET_POS = 0,
1288 AFTROW_CHUNKS_OFFSET_POS = 2,
1289 AFTROW_AUDIO_FORMAT_OFFSET = 4,
1290 AFTROW_FLAGS_OFFSET = 5,
1291 AFTROW_HASH_OFFSET = 9,
1292 AFTROW_PATH_OFFSET = (AFTROW_HASH_OFFSET + HASH_SIZE),
1293 };
1294
1295 /* never save the afsi, as the server knows it too. Note that afhi might be NULL.
1296 * In this case, afhi won't be stored in the buffer */
1297 static void save_audio_file_info(HASH_TYPE *hash, const char *path,
1298 struct audio_format_info *afhi, uint32_t flags,
1299 uint8_t audio_format_num, struct osl_object *obj)
1300 {
1301 size_t path_len = strlen(path) + 1;
1302 size_t afhi_size = sizeof_afhi_buf(afhi);
1303 size_t size = AFTROW_PATH_OFFSET + path_len + afhi_size
1304 + sizeof_chunk_info_buf(afhi);
1305 char *buf = para_malloc(size);
1306 uint16_t pos;
1307
1308 write_u8(buf + AFTROW_AUDIO_FORMAT_OFFSET, audio_format_num);
1309 write_u32(buf + AFTROW_FLAGS_OFFSET, flags);
1310
1311 memcpy(buf + AFTROW_HASH_OFFSET, hash, HASH_SIZE);
1312 strcpy(buf + AFTROW_PATH_OFFSET, path);
1313
1314 pos = AFTROW_PATH_OFFSET + path_len;
1315 PARA_DEBUG_LOG("size: %zu, afhi starts at %d\n", size, pos);
1316 PARA_DEBUG_LOG("last afhi byte: %p, pos %zu\n", buf + pos + afhi_size - 1,
1317 pos + afhi_size - 1);
1318 write_u16(buf + AFTROW_AFHI_OFFSET_POS, pos);
1319 save_afhi(afhi, buf + pos);
1320
1321 pos += afhi_size;
1322 PARA_DEBUG_LOG("size: %zu, chunks start at %d\n", size, pos);
1323 write_u16(buf + AFTROW_CHUNKS_OFFSET_POS, pos);
1324 save_chunk_info(afhi, buf + pos);
1325 PARA_DEBUG_LOG("last byte in buf: %p\n", buf + size - 1);
1326 obj->data = buf;
1327 obj->size = size;
1328 }
1329
1330 /*
1331 input:
1332 ~~~~~~
1333 HS: hash sister
1334 PB: path brother
1335 F: force flag given
1336
1337 output:
1338 ~~~~~~~
1339 AFHI: whether afhi and chunk table are computed and sent
1340 ACTION: table modifications to be performed
1341
1342 +---+----+-----+------+---------------------------------------------------+
1343 | HS | PB | F | AFHI | ACTION
1344 +---+----+-----+------+---------------------------------------------------+
1345 | Y | Y | Y | Y | if HS != PB: remove PB. HS: force afhi update,
1346 | | update path, keep afsi
1347 +---+----+-----+------+---------------------------------------------------+
1348 | Y | Y | N | N | if HS == PB: do not send callback request at all.
1349 | | otherwise: remove PB, HS: update path, keep afhi,
1350 | | afsi.
1351 +---+----+-----+------+---------------------------------------------------+
1352 | Y | N | Y | Y | (rename) force afhi update of HS, update path of
1353 | | HS, keep afsi
1354 +---+----+-----+------+---------------------------------------------------+
1355 | Y | N | N | N | (file rename) update path of HS, keep afsi, afhi
1356 +---+----+-----+------+---------------------------------------------------+
1357 | N | Y | Y | Y | (file change) update afhi, hash, of PB, keep afsi
1358 | | (force has no effect)
1359 +---+----+-----+------+---------------------------------------------------+
1360 | N | Y | N | Y | (file change) update afhi, hash of PB, keep afsi
1361 +---+----+-----+------+---------------------------------------------------+
1362 | N | N | Y | Y | (new file) create new entry (force has no effect)
1363 +---+----+-----+------+---------------------------------------------------+
1364 | N | N | N | Y | (new file) create new entry
1365 +---+----+-----+------+---------------------------------------------------+
1366
1367 afhi <=> force or no HS
1368
1369 */
1370
1371 /** Flags passed to the add command. */
1372 enum com_add_flags {
1373 /** Skip paths that exist already. */
1374 ADD_FLAG_LAZY = 1,
1375 /** Force adding. */
1376 ADD_FLAG_FORCE = 2,
1377 /** Print what is being done. */
1378 ADD_FLAG_VERBOSE = 4,
1379 /** Try to add files with unknown suffixes. */
1380 ADD_FLAG_ALL = 8,
1381 };
1382
1383 static int com_add_callback(const struct osl_object *query,
1384 struct osl_object *result)
1385 {
1386 char *buf = query->data, *path;
1387 struct osl_row *pb, *aft_row;
1388 struct osl_row *hs;
1389 struct osl_object objs[NUM_AFT_COLUMNS];
1390 HASH_TYPE *hash;
1391 char asc[2 * HASH_SIZE + 1];
1392 int ret;
1393 char afsi_buf[AFSI_SIZE];
1394 uint32_t flags = read_u32(buf + AFTROW_FLAGS_OFFSET);
1395 struct afs_info default_afsi = {.last_played = 0};
1396 struct para_buffer msg = {.buf = NULL};
1397
1398 hash = (HASH_TYPE *)buf + AFTROW_HASH_OFFSET;
1399 hash_to_asc(hash, asc);;
1400 objs[AFTCOL_HASH].data = buf + AFTROW_HASH_OFFSET;
1401 objs[AFTCOL_HASH].size = HASH_SIZE;
1402
1403 path = buf + AFTROW_PATH_OFFSET;
1404 objs[AFTCOL_PATH].data = path;
1405 objs[AFTCOL_PATH].size = strlen(path) + 1;
1406
1407 PARA_INFO_LOG("request to add %s\n", path);
1408 hs = find_hash_sister(hash);
1409 ret = aft_get_row_of_path(path, &pb);
1410 if (ret < 0 && ret != -E_RB_KEY_NOT_FOUND)
1411 return ret;
1412 if (hs && pb && hs == pb && !(flags & ADD_FLAG_FORCE)) {
1413 if (flags & ADD_FLAG_VERBOSE)
1414 para_printf(&msg, "ignoring duplicate\n");
1415 ret = 1;
1416 goto out;
1417 }
1418 if (hs && hs != pb) {
1419 struct osl_object obj;
1420 if (pb) { /* hs trumps pb, remove pb */
1421 if (flags & ADD_FLAG_VERBOSE)
1422 para_printf(&msg, "removing path brother\n");
1423 ret = osl_del_row(audio_file_table, pb);
1424 if (ret < 0)
1425 goto out;
1426 pb = NULL;
1427 }
1428 /* file rename, update hs' path */
1429 if (flags & ADD_FLAG_VERBOSE) {
1430 ret = osl_get_object(audio_file_table, hs,
1431 AFTCOL_PATH, &obj);
1432 if (ret < 0)
1433 goto out;
1434 para_printf(&msg, "renamed from %s\n", (char *)obj.data);
1435 }
1436 ret = osl_update_object(audio_file_table, hs, AFTCOL_PATH,
1437 &objs[AFTCOL_PATH]);
1438 if (ret < 0)
1439 goto out;
1440 afs_event(AUDIO_FILE_RENAME, &msg, hs);
1441 if (!(flags & ADD_FLAG_FORCE))
1442 goto out;
1443 }
1444 /* no hs or force mode, child must have sent afhi */
1445 uint16_t afhi_offset = read_u16(buf + AFTROW_AFHI_OFFSET_POS);
1446 uint16_t chunks_offset = read_u16(buf + AFTROW_CHUNKS_OFFSET_POS);
1447
1448 objs[AFTCOL_AFHI].data = buf + afhi_offset;
1449 objs[AFTCOL_AFHI].size = chunks_offset - afhi_offset;
1450 ret = -E_NO_AFHI;
1451 if (!objs[AFTCOL_AFHI].size) /* "impossible" */
1452 goto out;
1453 objs[AFTCOL_CHUNKS].data = buf + chunks_offset;
1454 objs[AFTCOL_CHUNKS].size = query->size - chunks_offset;
1455 if (pb && !hs) { /* update pb's hash */
1456 char old_asc[2 * HASH_SIZE + 1];
1457 HASH_TYPE *old_hash;
1458 ret = get_hash_of_row(pb, &old_hash);
1459 if (ret < 0)
1460 goto out;
1461 hash_to_asc(old_hash, old_asc);
1462 if (flags & ADD_FLAG_VERBOSE)
1463 para_printf(&msg, "file change: %s -> %s\n",
1464 old_asc, asc);
1465 ret = osl_update_object(audio_file_table, pb, AFTCOL_HASH,
1466 &objs[AFTCOL_HASH]);
1467 if (ret < 0)
1468 goto out;
1469 }
1470 if (hs || pb) { /* (hs != NULL and pb != NULL) implies hs == pb */
1471 struct osl_row *row = pb? pb : hs;
1472 /* update afhi and chunk_table */
1473 if (flags & ADD_FLAG_VERBOSE)
1474 para_printf(&msg, "updating afhi and chunk table\n");
1475 ret = osl_update_object(audio_file_table, row, AFTCOL_AFHI,
1476 &objs[AFTCOL_AFHI]);
1477 if (ret < 0)
1478 goto out;
1479 ret = osl_update_object(audio_file_table, row, AFTCOL_CHUNKS,
1480 &objs[AFTCOL_CHUNKS]);
1481 if (ret < 0)
1482 goto out;
1483 afs_event(AFHI_CHANGE, &msg, row);
1484 goto out;
1485 }
1486 /* new entry, use default afsi */
1487 if (flags & ADD_FLAG_VERBOSE)
1488 para_printf(&msg, "new file\n");
1489 default_afsi.last_played = time(NULL) - 365 * 24 * 60 * 60;
1490 default_afsi.audio_format_id = read_u8(buf + AFTROW_AUDIO_FORMAT_OFFSET);
1491
1492 objs[AFTCOL_AFSI].data = &afsi_buf;
1493 objs[AFTCOL_AFSI].size = AFSI_SIZE;
1494 save_afsi(&default_afsi, &objs[AFTCOL_AFSI]);
1495 ret = osl_add_and_get_row(audio_file_table, objs, &aft_row);
1496 out:
1497 if (ret < 0)
1498 para_printf(&msg, "%s\n", PARA_STRERROR(-ret));
1499 if (!msg.buf)
1500 return 0;
1501 result->data = msg.buf;
1502 result->size = msg.size;
1503 afs_event(AUDIO_FILE_ADD, &msg, aft_row);
1504 return 1;
1505 }
1506
1507 struct private_add_data {
1508 int fd;
1509 uint32_t flags;
1510 };
1511
1512 static int path_brother_callback(const struct osl_object *query,
1513 struct osl_object *result)
1514 {
1515 char *path = query->data;
1516 struct osl_row *path_brother;
1517 int ret = aft_get_row_of_path(path, &path_brother);
1518 if (ret < 0)
1519 return ret;
1520 result->data = para_malloc(sizeof(path_brother));
1521 result->size = sizeof(path_brother);
1522 *(struct osl_row **)(result->data) = path_brother;
1523 return 1;
1524 }
1525
1526 static int hash_sister_callback(const struct osl_object *query,
1527 struct osl_object *result)
1528 {
1529 HASH_TYPE *hash = query->data;
1530 struct osl_row *hash_sister;
1531
1532 hash_sister = find_hash_sister(hash);
1533 if (!hash_sister)
1534 return -E_RB_KEY_NOT_FOUND;
1535 result->data = para_malloc(sizeof(hash_sister));
1536 result->size = sizeof(hash_sister);
1537 *(struct osl_row **)(result->data) = hash_sister;
1538 return 1;
1539 }
1540
1541 static int add_one_audio_file(const char *path, const void *private_data)
1542 {
1543 int ret, ret2;
1544 uint8_t format_num = -1;
1545 const struct private_add_data *pad = private_data;
1546 struct audio_format_info afhi, *afhi_ptr = NULL;
1547 struct osl_row *pb = NULL, *hs = NULL; /* path brother/hash sister */
1548 struct osl_object map, obj = {.data = NULL}, query, result;
1549 HASH_TYPE hash[HASH_SIZE];
1550
1551 afhi.header_offset = 0;
1552 afhi.header_len = 0;
1553 ret = guess_audio_format(path);
1554 if (ret < 0 && !(pad->flags & ADD_FLAG_ALL))
1555 goto out_free;
1556 query.data = (char *)path;
1557 query.size = strlen(path) + 1;
1558 ret = send_callback_request(path_brother_callback, &query, &result);
1559 if (ret < 0 && ret != -E_RB_KEY_NOT_FOUND)
1560 goto out_free;
1561 if (ret >= 0) {
1562 pb = *(struct osl_row **)result.data;
1563 free(result.data);
1564 }
1565 ret = 1;
1566 if (pb && (pad->flags & ADD_FLAG_LAZY)) { /* lazy is really cheap */
1567 if (pad->flags & ADD_FLAG_VERBOSE)
1568 ret = send_va_buffer(pad->fd, "lazy-ignore: %s\n", path);
1569 goto out_free;
1570 }
1571 /* We still want to add this file. Compute its hash. */
1572 ret = mmap_full_file(path, O_RDONLY, &map);
1573 if (ret < 0)
1574 goto out_free;
1575 hash_function(map.data, map.size, hash);
1576
1577 /* Check whether database contains file with the same hash. */
1578 query.data = hash;
1579 query.size = HASH_SIZE;
1580 ret = send_callback_request(hash_sister_callback, &query, &result);
1581 if (ret < 0 && ret != -E_RB_KEY_NOT_FOUND)
1582 goto out_free;
1583 if (ret >= 0) {
1584 hs = *(struct osl_row **)result.data;
1585 free(result.data);
1586 }
1587 /* Return success if we already know this file. */
1588 ret = 1;
1589 if (pb && hs && hs == pb && (!(pad->flags & ADD_FLAG_FORCE))) {
1590 if (pad->flags & ADD_FLAG_VERBOSE)
1591 ret = send_va_buffer(pad->fd,
1592 "%s exists, not forcing update\n", path);
1593 goto out_unmap;
1594 }
1595 /*
1596 * we won't recalculate the audio format info and the chunk table if
1597 * there is a hash sister unless in FORCE mode.
1598 */
1599 if (!hs || (pad->flags & ADD_FLAG_FORCE)) {
1600 ret = compute_afhi(path, map.data, map.size, &afhi);
1601 if (ret < 0)
1602 goto out_unmap;
1603 format_num = ret;
1604 afhi_ptr = &afhi;
1605 }
1606 if (pad->flags & ADD_FLAG_VERBOSE) {
1607 ret = send_va_buffer(pad->fd, "adding %s\n", path);
1608 if (ret < 0)
1609 goto out_unmap;
1610 }
1611 munmap(map.data, map.size);
1612 save_audio_file_info(hash, path, afhi_ptr, pad->flags, format_num, &obj);
1613 /* Ask afs to consider this entry for adding. */
1614 ret = send_callback_request(com_add_callback, &obj, &result);
1615 if (result.data && result.size) {
1616 ret2 = send_va_buffer(pad->fd, "%s", (char *)result.data);
1617 free(result.data);
1618 if (ret >= 0 && ret2 < 0)
1619 ret = ret2;
1620 }
1621 goto out_free;
1622
1623 out_unmap:
1624 munmap(map.data, map.size);
1625 out_free:
1626 if (ret < 0 && ret != -E_SEND)
1627 send_va_buffer(pad->fd, "failed to add %s (%s)\n", path,
1628 PARA_STRERROR(-ret));
1629 free(obj.data);
1630 if (afhi_ptr)
1631 free(afhi_ptr->chunk_table);
1632 /* it's not an error if not all files could be added */
1633 return ret == -E_SEND? ret : 1;
1634 }
1635
1636 int com_add(int fd, int argc, char * const * const argv)
1637 {
1638 int i, ret;
1639 struct private_add_data pad = {.fd = fd, .flags = 0};
1640 struct stat statbuf;
1641
1642 for (i = 1; i < argc; i++) {
1643 const char *arg = argv[i];
1644 if (arg[0] != '-')
1645 break;
1646 if (!strcmp(arg, "--")) {
1647 i++;
1648 break;
1649 }
1650 if (!strcmp(arg, "-a")) {
1651 pad.flags |= ADD_FLAG_ALL;
1652 continue;
1653 }
1654 if (!strcmp(arg, "-l")) {
1655 pad.flags |= ADD_FLAG_LAZY;
1656 continue;
1657 }
1658 if (!strcmp(arg, "-f")) {
1659 pad.flags |= ADD_FLAG_FORCE;
1660 continue;
1661 }
1662 if (!strcmp(arg, "-v")) {
1663 pad.flags |= ADD_FLAG_VERBOSE;
1664 continue;
1665 }
1666 }
1667 if (argc <= i)
1668 return -E_AFT_SYNTAX;
1669 for (; i < argc; i++) {
1670 char *path;
1671 ret = verify_path(argv[i], &path);
1672 if (ret < 0) {
1673 ret = send_va_buffer(fd, "%s: %s\n", argv[i], PARA_STRERROR(-ret));
1674 if (ret < 0)
1675 return ret;
1676 continue;
1677 }
1678 ret = stat(path, &statbuf);
1679 if (ret < 0) {
1680 ret = send_va_buffer(fd, "failed to stat %s (%s)\n", path,
1681 strerror(errno));
1682 free(path);
1683 if (ret < 0)
1684 return ret;
1685 continue;
1686 }
1687 if (S_ISDIR(statbuf.st_mode))
1688 ret = for_each_file_in_dir(path, add_one_audio_file,
1689 &pad);
1690 else
1691 ret = add_one_audio_file(path, &pad);
1692 if (ret < 0) {
1693 send_va_buffer(fd, "%s: %s\n", path, PARA_STRERROR(-ret));
1694 free(path);
1695 return ret;
1696 }
1697 free(path);
1698 }
1699 return 1;
1700
1701 }
1702
1703 /**
1704 * Flags used by the touch command.
1705 *
1706 * \sa com_touch().
1707 */
1708 enum touch_flags {
1709 /** Whether the \p FNM_PATHNAME flag should be passed to fnmatch(). */
1710 TOUCH_FLAG_FNM_PATHNAME = 1,
1711 /** Activates verbose mode. */
1712 TOUCH_FLAG_VERBOSE = 2
1713 };
1714
1715 struct com_touch_options {
1716 int32_t num_played;
1717 int64_t last_played;
1718 int32_t lyrics_id;
1719 int32_t image_id;
1720 unsigned flags;
1721 };
1722
1723 struct touch_action_data {
1724 struct com_touch_options *cto;
1725 struct para_buffer pb;
1726 };
1727
1728 static int touch_audio_file(__a_unused struct osl_table *table,
1729 struct osl_row *row, const char *name, void *data)
1730 {
1731 struct touch_action_data *tad = data;
1732 struct osl_object obj;
1733 struct afs_info old_afsi, new_afsi;
1734 int ret, no_options = tad->cto->num_played < 0 && tad->cto->last_played < 0 &&
1735 tad->cto->lyrics_id < 0 && tad->cto->image_id < 0;
1736 struct afsi_change_event_data aced;
1737
1738 ret = get_afsi_object_of_row(row, &obj);
1739 if (ret < 0) {
1740 para_printf(&tad->pb, "%s: %s\n", name, PARA_STRERROR(-ret));
1741 return 1;
1742 }
1743 ret = load_afsi(&old_afsi, &obj);
1744 if (ret < 0) {
1745 para_printf(&tad->pb, "%s: %s\n", name, PARA_STRERROR(-ret));
1746 return 1;
1747 }
1748 new_afsi = old_afsi;
1749 if (no_options) {
1750 new_afsi.num_played++;
1751 new_afsi.last_played = time(NULL);
1752 if (tad->cto->flags & TOUCH_FLAG_VERBOSE)
1753 para_printf(&tad->pb, "%s: num_played = %u, "
1754 "last_played = now()\n", name,
1755 new_afsi.num_played);
1756 } else {
1757 if (tad->cto->flags & TOUCH_FLAG_VERBOSE)
1758 para_printf(&tad->pb, "touching %s\n", name);
1759 if (tad->cto->lyrics_id >= 0)
1760 new_afsi.lyrics_id = tad->cto->lyrics_id;
1761 if (tad->cto->image_id >= 0)
1762 new_afsi.image_id = tad->cto->image_id;
1763 if (tad->cto->num_played >= 0)
1764 new_afsi.num_played = tad->cto->num_played;
1765 if (tad->cto->last_played >= 0)
1766 new_afsi.last_played = tad->cto->last_played;
1767 }
1768 save_afsi(&new_afsi, &obj); /* in-place update */
1769 aced.aft_row = row;
1770 aced.old_afsi = &old_afsi;
1771 afs_event(AFSI_CHANGE, &tad->pb, &aced);
1772 return 1;
1773 }
1774
1775 static int com_touch_callback(const struct osl_object *query,
1776 struct osl_object *result)
1777 {
1778 struct touch_action_data tad = {.cto = query->data};
1779 int ret;
1780 struct pattern_match_data pmd = {
1781 .table = audio_file_table,
1782 .loop_col_num = AFTCOL_HASH,
1783 .match_col_num = AFTCOL_PATH,
1784 .patterns = {.data = (char *)query->data + sizeof(*tad.cto),
1785 .size = query->size - sizeof(*tad.cto)},
1786 .data = &tad,
1787 .action = touch_audio_file
1788 };
1789 if (tad.cto->flags & TOUCH_FLAG_FNM_PATHNAME)
1790 pmd.fnmatch_flags |= FNM_PATHNAME;
1791 ret = for_each_matching_row(&pmd);
1792 if (ret < 0)
1793 para_printf(&tad.pb, "%s\n", PARA_STRERROR(-ret));
1794 if (tad.pb.buf) {
1795 result->data = tad.pb.buf;
1796 result->size = tad.pb.size;
1797 return 1;
1798 }
1799 return ret < 0? ret : 0;
1800 }
1801
1802 int com_touch(int fd, int argc, char * const * const argv)
1803 {
1804 struct com_touch_options cto = {
1805 .num_played = -1,
1806 .last_played = -1,
1807 .lyrics_id = -1,
1808 .image_id = -1
1809 };
1810 struct osl_object query = {.data = &cto, .size = sizeof(cto)},
1811 result;
1812 int i, ret;
1813
1814
1815 for (i = 1; i < argc; i++) {
1816 const char *arg = argv[i];
1817 if (arg[0] != '-')
1818 break;
1819 if (!strcmp(arg, "--")) {
1820 i++;
1821 break;
1822 }
1823 if (!strncmp(arg, "-n", 2)) {
1824 ret = para_atoi32(arg + 2, &cto.num_played);
1825 if (ret < 0)
1826 return ret;
1827 continue;
1828 }
1829 if (!strncmp(arg, "-l", 2)) {
1830 ret = para_atoi64(arg + 2, &cto.last_played);
1831 if (ret < 0)
1832 return ret;
1833 continue;
1834 }
1835 if (!strncmp(arg, "-y", 2)) {
1836 ret = para_atoi32(arg + 2, &cto.lyrics_id);
1837 if (ret < 0)
1838 return ret;
1839 continue;
1840 }
1841 if (!strncmp(arg, "-i", 2)) {
1842 ret = para_atoi32(arg + 2, &cto.image_id);
1843 if (ret < 0)
1844 return ret;
1845 continue;
1846 }
1847 if (!strcmp(arg, "-p")) {
1848 cto.flags |= TOUCH_FLAG_FNM_PATHNAME;
1849 continue;
1850 }
1851 if (!strcmp(arg, "-v")) {
1852 cto.flags |= TOUCH_FLAG_VERBOSE;
1853 continue;
1854 }
1855 break; /* non-option starting with dash */
1856 }
1857 if (i >= argc)
1858 return -E_AFT_SYNTAX;
1859 ret = send_option_arg_callback_request(&query, argc - i,
1860 argv + i, com_touch_callback, &result);
1861 if (ret > 0) {
1862 send_buffer(fd, (char *)result.data);
1863 free(result.data);
1864 } else
1865 send_va_buffer(fd, "%s\n", PARA_STRERROR(-ret));
1866 return ret;
1867 }
1868
1869 enum rm_flags {
1870 RM_FLAG_VERBOSE = 1,
1871 RM_FLAG_FORCE = 2,
1872 RM_FLAG_FNM_PATHNAME = 4
1873 };
1874
1875 struct com_rm_data {
1876 uint32_t flags;
1877 struct para_buffer pb;
1878 unsigned num_removed;
1879 };
1880
1881 static int remove_audio_file(__a_unused struct osl_table *table,
1882 struct osl_row *row, const char *name, void *data)
1883 {
1884 struct com_rm_data *crd = data;
1885 int ret;
1886
1887 if (crd->flags & RM_FLAG_VERBOSE)
1888 para_printf(&crd->pb, "removing %s\n", name);
1889 afs_event(AUDIO_FILE_REMOVE, &crd->pb, row);
1890 ret = osl_del_row(audio_file_table, row);
1891 if (ret < 0)
1892 para_printf(&crd->pb, "%s: %s\n", name, PARA_STRERROR(-ret));
1893 else
1894 crd->num_removed++;
1895 return 1;
1896 }
1897
1898 static int com_rm_callback(const struct osl_object *query,
1899 __a_unused struct osl_object *result)
1900 {
1901 struct com_rm_data crd = {.flags = *(uint32_t *)query->data};
1902 int ret;
1903 struct pattern_match_data pmd = {
1904 .table = audio_file_table,
1905 .loop_col_num = AFTCOL_HASH,
1906 .match_col_num = AFTCOL_PATH,
1907 .patterns = {.data = (char *)query->data + sizeof(uint32_t),
1908 .size = query->size - sizeof(uint32_t)},
1909 .data = &crd,
1910 .action = remove_audio_file
1911 };
1912 if (crd.flags & RM_FLAG_FNM_PATHNAME)
1913 pmd.fnmatch_flags |= FNM_PATHNAME;
1914 ret = for_each_matching_row(&pmd);
1915 if (ret < 0)
1916 para_printf(&crd.pb, "%s\n", PARA_STRERROR(-ret));
1917 if (!crd.num_removed && !(crd.flags & RM_FLAG_FORCE))
1918 para_printf(&crd.pb, "no matches -- nothing removed\n");
1919 else {
1920 if (crd.flags & RM_FLAG_VERBOSE)
1921 para_printf(&crd.pb, "removed %u files\n", crd.num_removed);
1922 }
1923 if (crd.pb.buf) {
1924 result->data = crd.pb.buf;
1925 result->size = crd.pb.size;
1926 return 1;
1927 }
1928 return ret < 0? ret : 0;
1929 }
1930
1931 /* TODO options: -r (recursive) */
1932 int com_afs_rm(int fd, int argc, char * const * const argv)
1933 {
1934 uint32_t flags = 0;
1935 struct osl_object query = {.data = &flags, .size = sizeof(flags)},
1936 result;
1937 int i, ret;
1938
1939 for (i = 1; i < argc; i++) {
1940 const char *arg = argv[i];
1941 if (arg[0] != '-')
1942 break;
1943 if (!strcmp(arg, "--")) {
1944 i++;
1945 break;
1946 }
1947 if (!strcmp(arg, "-f")) {
1948 flags |= RM_FLAG_FORCE;
1949 continue;
1950 }
1951 if (!strcmp(arg, "-p")) {
1952 flags |= RM_FLAG_FNM_PATHNAME;
1953 continue;
1954 }
1955 if (!strcmp(arg, "-v")) {
1956 flags |= RM_FLAG_VERBOSE;
1957 continue;
1958 }
1959 break;
1960 }
1961 if (i >= argc)
1962 return -E_AFT_SYNTAX;
1963 ret = send_option_arg_callback_request(&query, argc - i, argv + i,
1964 com_rm_callback, &result);
1965 if (ret > 0) {
1966 send_buffer(fd, (char *)result.data);
1967 free(result.data);
1968 } else if (ret < 0)
1969 send_va_buffer(fd, "%s\n", PARA_STRERROR(-ret));
1970 return ret;
1971 }
1972
1973 /**
1974 * Flags used by the cpsi command.
1975 *
1976 * \sa com_cpsi().
1977 */
1978 enum cpsi_flags {
1979 /** Whether the lyrics id should be copied. */
1980 CPSI_FLAG_COPY_LYRICS_ID = 1,
1981 /** Whether the image id should be copied. */
1982 CPSI_FLAG_COPY_IMAGE_ID = 2,
1983 /** Whether the lastplayed time should be copied. */
1984 CPSI_FLAG_COPY_LASTPLAYED = 4,
1985 /** Whether the numplayed count should be copied. */
1986 CPSI_FLAG_COPY_NUMPLAYED = 8,
1987 /** Whether the attributes should be copied. */
1988 CPSI_FLAG_COPY_ATTRIBUTES = 16,
1989 /** Activates verbose mode. */
1990 CPSI_FLAG_VERBOSE = 32,
1991 };
1992
1993 struct cpsi_action_data {
1994 unsigned flags;
1995 unsigned num_copied;
1996 struct para_buffer pb;
1997 struct afs_info source_afsi;
1998 };
1999
2000 static int copy_selector_info(__a_unused struct osl_table *table,
2001 struct osl_row *row, const char *name, void *data)
2002 {
2003 struct cpsi_action_data *cad = data;
2004 struct osl_object target_afsi_obj;
2005 int ret;
2006 struct afs_info old_afsi, target_afsi;
2007 struct afsi_change_event_data aced;
2008
2009 ret = get_afsi_object_of_row(row, &target_afsi_obj);
2010 if (ret < 0)
2011 return ret;
2012 load_afsi(&target_afsi, &target_afsi_obj);
2013 old_afsi = target_afsi;
2014 if (cad->flags & CPSI_FLAG_COPY_LYRICS_ID)
2015 target_afsi.lyrics_id = cad->source_afsi.lyrics_id;
2016 if (cad->flags & CPSI_FLAG_COPY_IMAGE_ID)
2017 target_afsi.image_id = cad->source_afsi.image_id;
2018 if (cad->flags & CPSI_FLAG_COPY_LASTPLAYED)
2019 target_afsi.last_played = cad->source_afsi.last_played;
2020 if (cad->flags & CPSI_FLAG_COPY_NUMPLAYED)
2021 target_afsi.num_played = cad->source_afsi.num_played;
2022 if (cad->flags & CPSI_FLAG_COPY_ATTRIBUTES)
2023 target_afsi.attributes = cad->source_afsi.attributes;
2024 save_afsi(&target_afsi, &target_afsi_obj); /* in-place update */
2025 cad->num_copied++;
2026 if (cad->flags & CPSI_FLAG_VERBOSE)
2027 para_printf(&cad->pb, "copied afsi to %s\n", name);
2028 aced.aft_row = row;
2029 aced.old_afsi = &old_afsi;
2030 afs_event(AFSI_CHANGE, &cad->pb, &aced);
2031 return 1;
2032 }
2033
2034 static int com_cpsi_callback(const struct osl_object *query,
2035 struct osl_object *result)
2036 {
2037 struct cpsi_action_data cad = {.flags = *(unsigned *)query->data};
2038 int ret;
2039 char *source_path = (char *)query->data + sizeof(cad.flags);
2040
2041 ret = get_afsi_of_path(source_path, &cad.source_afsi);
2042 if (ret < 0)
2043 goto out;
2044 struct pattern_match_data pmd = {
2045 .table = audio_file_table,
2046 .loop_col_num = AFTCOL_HASH,
2047 .match_col_num = AFTCOL_PATH,
2048 .patterns = {.data = source_path + strlen(source_path) + 1,
2049 .size = query->size - sizeof(cad.flags)
2050 - strlen(source_path) - 1},
2051 .data = &cad,
2052 .action = copy_selector_info
2053 };
2054 ret = for_each_matching_row(&pmd);
2055 out:
2056 if (ret < 0)
2057 para_printf(&cad.pb, "%s\n", PARA_STRERROR(-ret));
2058 if (cad.flags & CPSI_FLAG_VERBOSE) {
2059 if (cad.num_copied)
2060 para_printf(&cad.pb, "copied requested afsi from %s "
2061 "to %u files\n",
2062 source_path, cad.num_copied);
2063 else
2064 para_printf(&cad.pb, "nothing copied\n");
2065 }
2066 if (cad.pb.buf) {
2067 result->data = cad.pb.buf;
2068 result->size = cad.pb.size;
2069 return 1;
2070 }
2071 return ret < 0? ret : 0;
2072 }
2073
2074 int com_cpsi(int fd, int argc, char * const * const argv)
2075 {
2076 unsigned flags = 0;
2077 int i, ret;
2078 struct osl_object options = {.data = &flags, .size = sizeof(flags)},
2079 result;
2080
2081 for (i = 1; i < argc; i++) {
2082 const char *arg = argv[i];
2083 if (arg[0] != '-')
2084 break;
2085 if (!strcmp(arg, "--")) {
2086 i++;
2087 break;
2088 }
2089 if (!strcmp(arg, "-y")) {
2090 flags |= CPSI_FLAG_COPY_LYRICS_ID;
2091 continue;
2092 }
2093 if (!strcmp(arg, "-i")) {
2094 flags |= CPSI_FLAG_COPY_IMAGE_ID;
2095 continue;
2096 }
2097 if (!strcmp(arg, "-l")) {
2098 flags |= CPSI_FLAG_COPY_LASTPLAYED;
2099 continue;
2100 }
2101 if (!strcmp(arg, "-n")) {
2102 flags |= CPSI_FLAG_COPY_NUMPLAYED;
2103 continue;
2104 }
2105 if (!strcmp(arg, "-a")) {
2106 flags |= CPSI_FLAG_COPY_ATTRIBUTES;
2107 continue;
2108 }
2109 if (!strcmp(arg, "-v")) {
2110 flags |= CPSI_FLAG_VERBOSE;
2111 continue;
2112 }
2113 break;
2114 }
2115 if (i + 1 >= argc) /* need at least souce file and pattern */
2116 return -E_AFT_SYNTAX;
2117 if (!(flags & ~CPSI_FLAG_VERBOSE)) /* no copy flags given */
2118 flags = ~(unsigned)CPSI_FLAG_VERBOSE | flags;
2119 ret = send_option_arg_callback_request(&options, argc - i, argv + i,
2120 com_cpsi_callback, &result);
2121 if (ret > 0) {
2122 send_buffer(fd, (char *)result.data);
2123 free(result.data);
2124 } else
2125 send_va_buffer(fd, "%s\n", PARA_STRERROR(-ret));
2126 return ret;
2127 }
2128
2129 /* TODO: optionally fix problems by removing offending rows */
2130 static int check_audio_file(struct osl_row *row, void *data)
2131 {
2132 char *path;
2133 struct para_buffer *pb = data;
2134 struct stat statbuf;
2135 int ret = get_audio_file_path_of_row(row, &path);
2136 struct afs_info afsi;
2137 char *blob_name;
2138
2139 if (ret < 0) {
2140 para_printf(pb, "%s\n", PARA_STRERROR(-ret));
2141 return 1;
2142 }
2143 if (stat(path, &statbuf) < 0)
2144 para_printf(pb, "%s: stat error (%s)\n", path, strerror(errno));
2145 else {
2146 if (!S_ISREG(statbuf.st_mode))
2147 para_printf(pb, "%s: not a regular file\n", path);
2148 }
2149 ret = get_afsi_of_row(row, &afsi);
2150 if (ret < 0) {
2151 para_printf(pb, "%s: %s\n", path, PARA_STRERROR(-ret));
2152 return 1;
2153 }
2154 ret = lyr_get_name_by_id(afsi.lyrics_id, &blob_name);
2155 if (ret < 0)
2156 para_printf(pb, "%s lyrics id %u: %s\n", path, afsi.lyrics_id,
2157 PARA_STRERROR(-ret));
2158 ret = img_get_name_by_id(afsi.image_id, &blob_name);
2159 if (ret < 0)
2160 para_printf(pb, "%s image id %u: %s\n", path, afsi.image_id,
2161 PARA_STRERROR(-ret));
2162 return 1;
2163 }
2164
2165 /**
2166 * Check the audio file table for inconsistencies.
2167 *
2168 * \param query Unused.
2169 * \param result Contains message string upon return.
2170 *
2171 * This function always succeeds.
2172 *
2173 * \sa com_check().
2174 */
2175 int aft_check_callback(__a_unused const struct osl_object *query, struct osl_object *result)
2176 {
2177 struct para_buffer pb = {.buf = NULL};
2178
2179 para_printf(&pb, "checking audio file table...\n");
2180 audio_file_loop(&pb, check_audio_file);
2181 result->data = pb.buf;
2182 result->size = pb.size;
2183 return 1;
2184
2185 }
2186
2187 /**
2188 * Close the audio file table.
2189 *
2190 * \param flags Ususal flags that are passed to osl_close_table().
2191 *
2192 * \sa osl_close_table().
2193 */
2194 static void aft_close(void)
2195 {
2196 osl_close_table(audio_file_table, OSL_MARK_CLEAN);
2197 audio_file_table = NULL;
2198 }
2199
2200 /**
2201 * Open the audio file table.
2202 *
2203 * \param dir The database directory.
2204 *
2205 * \return Standard.
2206 *
2207 * \sa osl_open_table().
2208 */
2209 static int aft_open(const char *dir)
2210 {
2211 int ret;
2212
2213 audio_file_table_desc.dir = dir;
2214 ret = osl_open_table(&audio_file_table_desc, &audio_file_table);
2215 if (ret >= 0) {
2216 unsigned num;
2217 osl_get_num_rows(audio_file_table, &num);
2218 PARA_INFO_LOG("audio file table contains %d files\n", num);
2219 return ret;
2220 }
2221 PARA_INFO_LOG("failed to open audio file table\n");
2222 audio_file_table = NULL;
2223 if (ret >= 0 || is_errno(-ret, ENOENT))
2224 return 1;
2225 return ret;
2226 }
2227
2228 static int aft_create(const char *dir)
2229 {
2230 audio_file_table_desc.dir = dir;
2231 return osl_create_table(&audio_file_table_desc);
2232 }
2233
2234 static int clear_attribute(struct osl_row *row, void *data)
2235 {
2236 struct rmatt_event_data *red = data;
2237 struct afs_info afsi;
2238 struct osl_object obj;
2239 int ret = get_afsi_object_of_row(row, &obj);
2240 uint64_t mask = ~(1ULL << red->bitnum);
2241
2242 if (ret < 0)
2243 return ret;
2244 ret = load_afsi(&afsi, &obj);
2245 if (ret < 0)
2246 return ret;
2247 afsi.attributes &= mask;
2248 save_afsi(&afsi, &obj);
2249 return 1;
2250 }
2251
2252 static int aft_event_handler(enum afs_events event, struct para_buffer *pb,
2253 void *data)
2254 {
2255 switch(event) {
2256 case ATTRIBUTE_REMOVE: {
2257 const struct rmatt_event_data *red = data;
2258 para_printf(pb, "clearing attribute %s (bit %u) from all "
2259 "entries in the audio file table\n", red->name,
2260 red->bitnum);
2261 return audio_file_loop(data, clear_attribute);
2262 }
2263 default:
2264 return 1;
2265 }
2266 }
2267
2268 void aft_init(struct afs_table *t)
2269 {
2270 t->name = audio_file_table_desc.name;
2271 t->open = aft_open;
2272 t->close = aft_close;
2273 t->create = aft_create;
2274 t->event_handler = aft_event_handler;
2275 }