5c1605207f67cb114b7e7d6d4add234824bc3af5
[paraslash.git] / aft.c
1 /*
2 * Copyright (C) 2007 Andre Noll <maan@systemlinux.org>
3 *
4 * Licensed under the GPL v2. For licencing details see COPYING.
5 */
6
7 /** \file aft.c Audio file table functions. */
8
9 #include <dirent.h> /* readdir() */
10 #include "para.h"
11 #include "error.h"
12 #include "string.h"
13 #include <sys/mman.h>
14 #include <fnmatch.h>
15 #include "afh.h"
16 #include "afs.h"
17 #include "net.h"
18 #include "vss.h"
19 #include "fd.h"
20 #include "ipc.h"
21
22 static struct osl_table *audio_file_table;
23
24 /** The different sorting methods of the ls command. */
25 enum ls_sorting_method {
26 /** -sp (default) */
27 LS_SORT_BY_PATH,
28 /** -ss */
29 LS_SORT_BY_SCORE,
30 /** -sl */
31 LS_SORT_BY_LAST_PLAYED,
32 /** -sn */
33 LS_SORT_BY_NUM_PLAYED,
34 /** -sf */
35 LS_SORT_BY_FREQUENCY,
36 /** -sc */
37 LS_SORT_BY_CHANNELS,
38 /** -si */
39 LS_SORT_BY_IMAGE_ID,
40 /** -sy */
41 LS_SORT_BY_LYRICS_ID,
42 /** -sb */
43 LS_SORT_BY_BITRATE,
44 /** -sd */
45 LS_SORT_BY_DURATION,
46 /** -sa */
47 LS_SORT_BY_AUDIO_FORMAT,
48 /** -sh */
49 LS_SORT_BY_HASH,
50 };
51
52 /** The different listing modes of the ls command. */
53 enum ls_listing_mode {
54 /** Default listing mode. */
55 LS_MODE_SHORT,
56 /** -l or -ll */
57 LS_MODE_LONG,
58 /** -lv */
59 LS_MODE_VERBOSE,
60 /** -lm */
61 LS_MODE_MBOX
62 };
63
64 /** The flags accepted by the ls command. */
65 enum ls_flags {
66 /** -p */
67 LS_FLAG_FULL_PATH = 1,
68 /** -a */
69 LS_FLAG_ADMISSIBLE_ONLY = 2,
70 /** -r */
71 LS_FLAG_REVERSE = 4,
72 };
73
74 /**
75 * The size of the individual output fields of the ls command.
76 *
77 * These depend on the actual content being listed. If, for instance only files
78 * with duration less than an hour are being listed, then the duration with is
79 * made smaller because then the duration is listed as mm:ss rather than
80 * hh:mm:ss.
81 */
82 struct ls_widths {
83 /** size of the score field. */
84 unsigned short score_width;
85 /** size of the image id field. */
86 unsigned short image_id_width;
87 /** size of the lyrics id field. */
88 unsigned short lyrics_id_width;
89 /** size of the bitrate field. */
90 unsigned short bitrate_width;
91 /** size of the frequency field. */
92 unsigned short frequency_width;
93 /** size of the duration field. */
94 unsigned short duration_width;
95 /** size of the num played field. */
96 unsigned short num_played_width;
97 };
98
99 /** Data passed to the different compare functions (called by qsort()). */
100 struct ls_data {
101 /** Usual audio format handler information. */
102 struct afh_info afhi;
103 /** Audio file selector information. */
104 struct afs_info afsi;
105 /** The full path of the audio file. */
106 char *path;
107 /** The score value (if -a was given). */
108 long score;
109 /** The sha1 hash of audio file. */
110 HASH_TYPE *hash;
111 };
112
113 /** Data passed from the ls command handler to its callback function. */
114 struct ls_options {
115 /** The given command line flags. */
116 unsigned flags;
117 /** The sorting method given at the command line. */
118 enum ls_sorting_method sorting;
119 /** The given listing mode (short, long, verbose, mbox). */
120 enum ls_listing_mode mode;
121 /** The arguments passed to the ls command. */
122 char **patterns;
123 /** Number of non-option arguments. */
124 int num_patterns;
125 /** Used for long listing mode to align the output fields. */
126 struct ls_widths widths;
127 /** Size of the \a data array. */
128 uint32_t array_size;
129 /** Number of used entries in the data array. */
130 uint32_t num_matching_paths;
131 /** Array of matching entries. */
132 struct ls_data *data;
133 /** Used to sort the array. */
134 struct ls_data **data_ptr;
135 };
136
137 /**
138 * Describes the layout of the mmapped-afs info struct.
139 *
140 * \sa struct afs_info.
141 */
142 enum afsi_offsets {
143 /** Where .last_played is stored. */
144 AFSI_LAST_PLAYED_OFFSET = 0,
145 /** Storage position of the attributes bitmap. */
146 AFSI_ATTRIBUTES_OFFSET = 8,
147 /** Storage position of the .num_played field. */
148 AFSI_NUM_PLAYED_OFFSET = 16,
149 /** Storage position of the .image_id field. */
150 AFSI_IMAGE_ID_OFFSET = 20,
151 /** Storage position of the .lyrics_id field. */
152 AFSI_LYRICS_ID_OFFSET = 24,
153 /** Storage position of the .audio_format_id field. */
154 AFSI_AUDIO_FORMAT_ID_OFFSET = 28,
155 /** 3 bytes reserved space for future usage. */
156 AFSI_AUDIO_FORMAT_UNUSED_OFFSET = 29,
157 /** On-disk storage space needed. */
158 AFSI_SIZE = 32
159 };
160
161 /**
162 * Convert a struct afs_info to an osl object.
163 *
164 * \param afsi Pointer to the audio file info to be converted.
165 * \param obj Result pointer.
166 *
167 * \sa load_afsi().
168 */
169 void save_afsi(struct afs_info *afsi, struct osl_object *obj)
170 {
171 char *buf = obj->data;
172
173 write_u64(buf + AFSI_LAST_PLAYED_OFFSET, afsi->last_played);
174 write_u64(buf + AFSI_ATTRIBUTES_OFFSET, afsi->attributes);
175 write_u32(buf + AFSI_NUM_PLAYED_OFFSET, afsi->num_played);
176 write_u32(buf + AFSI_IMAGE_ID_OFFSET, afsi->image_id);
177 write_u32(buf + AFSI_LYRICS_ID_OFFSET, afsi->lyrics_id);
178 write_u8(buf + AFSI_AUDIO_FORMAT_ID_OFFSET,
179 afsi->audio_format_id);
180 memset(buf + AFSI_AUDIO_FORMAT_UNUSED_OFFSET, 0, 3);
181 }
182
183 /**
184 * Get the audio file selector info struct stored in an osl object.
185 *
186 * \param afsi Points to the audio_file info structure to be filled in.
187 * \param obj The osl object holding the data.
188 *
189 * \return Positive on success, negative on errors. Possible errors: \p E_BAD_AFS.
190 *
191 * \sa save_afsi().
192 */
193 int load_afsi(struct afs_info *afsi, struct osl_object *obj)
194 {
195 char *buf = obj->data;
196 if (obj->size < AFSI_SIZE)
197 return -E_BAD_AFSI;
198 afsi->last_played = read_u64(buf + AFSI_LAST_PLAYED_OFFSET);
199 afsi->attributes = read_u64(buf + AFSI_ATTRIBUTES_OFFSET);
200 afsi->num_played = read_u32(buf + AFSI_NUM_PLAYED_OFFSET);
201 afsi->image_id = read_u32(buf + AFSI_IMAGE_ID_OFFSET);
202 afsi->lyrics_id = read_u32(buf + AFSI_LYRICS_ID_OFFSET);
203 afsi->audio_format_id = read_u8(buf +
204 AFSI_AUDIO_FORMAT_ID_OFFSET);
205 return 1;
206 }
207
208 /** The columns of the audio file table. */
209 enum audio_file_table_columns {
210 /** The hash on the content of the audio file. */
211 AFTCOL_HASH,
212 /** The full path in the filesystem. */
213 AFTCOL_PATH,
214 /** The audio file selector info. */
215 AFTCOL_AFSI,
216 /** The audio format handler info. */
217 AFTCOL_AFHI,
218 /** The chunk table info and the chunk table of the audio file. */
219 AFTCOL_CHUNKS,
220 /** The number of columns of this table. */
221 NUM_AFT_COLUMNS
222 };
223
224 static struct osl_column_description aft_cols[] = {
225 [AFTCOL_HASH] = {
226 .storage_type = OSL_MAPPED_STORAGE,
227 .storage_flags = OSL_RBTREE | OSL_FIXED_SIZE | OSL_UNIQUE,
228 .name = "hash",
229 .compare_function = osl_hash_compare,
230 .data_size = HASH_SIZE
231 },
232 [AFTCOL_PATH] = {
233 .storage_type = OSL_MAPPED_STORAGE,
234 .storage_flags = OSL_RBTREE | OSL_UNIQUE,
235 .name = "path",
236 .compare_function = string_compare,
237 },
238 [AFTCOL_AFSI] = {
239 .storage_type = OSL_MAPPED_STORAGE,
240 .storage_flags = OSL_FIXED_SIZE,
241 .name = "afs_info",
242 .data_size = AFSI_SIZE
243 },
244 [AFTCOL_AFHI] = {
245 .storage_type = OSL_MAPPED_STORAGE,
246 .name = "afh_info",
247 },
248 [AFTCOL_CHUNKS] = {
249 .storage_type = OSL_DISK_STORAGE,
250 .name = "chunks",
251 }
252 };
253
254 static struct osl_table_description audio_file_table_desc = {
255 .name = "audio_files",
256 .num_columns = NUM_AFT_COLUMNS,
257 .flags = OSL_LARGE_TABLE,
258 .column_descriptions = aft_cols
259 };
260
261 /* We don't want * dot or dot-dot anywhere. */
262 static int verify_dotfile(const char *rest)
263 {
264 /*
265 * The first character was '.', but that has already been discarded, we
266 * now test the rest.
267 */
268 switch (*rest) {
269 case '\0': case '/': /* /foo/. and /foo/./bar are not ok */
270 return -1;
271 case '.': /* path start with /foo/.. */
272 if (rest[1] == '\0' || rest[1] == '/')
273 return -1; /* /foo/.. or /foo/../bar are not ok */
274 /* /foo/..bar is ok */
275 }
276 return 1;
277 }
278
279 /*
280 * We fundamentally don't like some paths: We don't want double slashes or
281 * slashes at the end that can make pathnames ambiguous.
282 */
283 static int verify_path(const char *orig_path, char **resolved_path)
284 {
285 char c;
286 size_t len;
287 char *path;
288
289 if (*orig_path != '/') /* we only accept absolute paths */
290 return -E_BAD_PATH;
291 len = strlen(orig_path);
292 *resolved_path = para_strdup(orig_path);
293 path = *resolved_path;
294 while (len > 1 && path[--len] == '/')
295 path[len] = '\0'; /* remove slash at the end */
296 c = *path++;
297 while (c) {
298 if (c == '/') {
299 c = *path++;
300 switch (c) {
301 case '/': /* double slash */
302 goto bad_path;
303 case '.':
304 if (verify_dotfile(path) < 0)
305 goto bad_path;
306 default:
307 continue;
308 }
309 }
310 c = *path++;
311 }
312 return 1;
313 bad_path:
314 free(*resolved_path);
315 return -E_BAD_PATH;
316 }
317
318 /** The on-disk layout of a afhi struct. */
319 enum afhi_offsets {
320 /** Where the number of seconds is stored. */
321 AFHI_SECONDS_TOTAL_OFFSET = 0,
322 /** Position of the bitrate. */
323 AFHI_BITRATE_OFFSET = 4,
324 /** Position of the frequency. */
325 AFHI_FREQUENCY_OFFSET = 8,
326 /** Number of channels is stored here. */
327 AFHI_CHANNELS_OFFSET = 12,
328 /** The tag info position. */
329 AFHI_INFO_STRING_OFFSET = 13,
330 /** Minimal on-disk size of a valid afhi struct. */
331 MIN_AFHI_SIZE = 14
332 };
333
334 static unsigned sizeof_afhi_buf(const struct afh_info *afhi)
335 {
336 if (!afhi)
337 return 0;
338 return strlen(afhi->info_string) + MIN_AFHI_SIZE;
339 }
340
341 static void save_afhi(struct afh_info *afhi, char *buf)
342 {
343 if (!afhi)
344 return;
345 write_u32(buf + AFHI_SECONDS_TOTAL_OFFSET,
346 afhi->seconds_total);
347 write_u32(buf + AFHI_BITRATE_OFFSET, afhi->bitrate);
348 write_u32(buf + AFHI_FREQUENCY_OFFSET, afhi->frequency);
349 write_u8(buf + AFHI_CHANNELS_OFFSET, afhi->channels);
350 strcpy(buf + AFHI_INFO_STRING_OFFSET, afhi->info_string); /* OK */
351 PARA_DEBUG_LOG("last byte written: %p\n", buf + AFHI_INFO_STRING_OFFSET + strlen(afhi->info_string));
352 }
353
354 static void load_afhi(const char *buf, struct afh_info *afhi)
355 {
356 afhi->seconds_total = read_u32(buf + AFHI_SECONDS_TOTAL_OFFSET);
357 afhi->bitrate = read_u32(buf + AFHI_BITRATE_OFFSET);
358 afhi->frequency = read_u32(buf + AFHI_FREQUENCY_OFFSET);
359 afhi->channels = read_u8(buf + AFHI_CHANNELS_OFFSET);
360 strcpy(afhi->info_string, buf + AFHI_INFO_STRING_OFFSET);
361 }
362
363 //#define SIZEOF_CHUNK_TABLE(afhi) (((afhi)->chunks_total + 1) * sizeof(uint32_t))
364
365 static unsigned sizeof_chunk_info_buf(struct afh_info *afhi)
366 {
367 if (!afhi)
368 return 0;
369 return 4 * (afhi->chunks_total + 1) + 20;
370
371 }
372
373 /** The offsets of the data contained in the AFTCOL_CHUNKS column. */
374 enum chunk_info_offsets{
375 /** The total number of chunks (4 bytes). */
376 CHUNKS_TOTAL_OFFSET = 0,
377 /** The length of the audio file header (4 bytes). */
378 HEADER_LEN_OFFSET = 4,
379 /** The start of the audio file header (4 bytes). */
380 HEADER_OFFSET_OFFSET = 8,
381 /** The seconds part of the chunk time (4 bytes). */
382 CHUNK_TV_TV_SEC_OFFSET = 12,
383 /** The microseconds part of the chunk time (4 bytes). */
384 CHUNK_TV_TV_USEC = 16,
385 /** Chunk table entries start here. */
386 CHUNK_TABLE_OFFSET = 20,
387 };
388
389 static void save_chunk_table(struct afh_info *afhi, char *buf)
390 {
391 int i;
392
393 PARA_DEBUG_LOG("%lu chunks\n", afhi->chunks_total);
394 for (i = 0; i <= afhi->chunks_total; i++)
395 write_u32(buf + 4 * i, afhi->chunk_table[i]);
396 }
397
398 static void load_chunk_table(struct afh_info *afhi, char *buf)
399 {
400 int i;
401 for (i = 0; i <= afhi->chunks_total; i++)
402 afhi->chunk_table[i] = read_u32(buf + 4 * i);
403 }
404
405 /* TODO: audio format handlers could just produce this */
406 static void save_chunk_info(struct afh_info *afhi, char *buf)
407 {
408 if (!afhi)
409 return;
410 write_u32(buf + CHUNKS_TOTAL_OFFSET, afhi->chunks_total);
411 write_u32(buf + HEADER_LEN_OFFSET, afhi->header_len);
412 write_u32(buf + HEADER_OFFSET_OFFSET, afhi->header_offset);
413 write_u32(buf + CHUNK_TV_TV_SEC_OFFSET, afhi->chunk_tv.tv_sec);
414 write_u32(buf + CHUNK_TV_TV_USEC, afhi->chunk_tv.tv_usec);
415 save_chunk_table(afhi, buf + CHUNK_TABLE_OFFSET);
416 }
417
418 static int load_chunk_info(struct osl_object *obj, struct afh_info *afhi)
419 {
420 char *buf = obj->data;
421
422 if (obj->size < CHUNK_TABLE_OFFSET)
423 return -E_BAD_DATA_SIZE;
424
425 afhi->chunks_total = read_u32(buf + CHUNKS_TOTAL_OFFSET);
426 afhi->header_len = read_u32(buf + HEADER_LEN_OFFSET);
427 afhi->header_offset = read_u32(buf + HEADER_OFFSET_OFFSET);
428 afhi->chunk_tv.tv_sec = read_u32(buf + CHUNK_TV_TV_SEC_OFFSET);
429 afhi->chunk_tv.tv_usec = read_u32(buf + CHUNK_TV_TV_USEC);
430
431 if ((afhi->chunks_total + 1) * 4 + CHUNK_TABLE_OFFSET > obj->size)
432 return -E_BAD_DATA_SIZE;
433 afhi->chunk_table = para_malloc((afhi->chunks_total + 1) * 4);
434 load_chunk_table(afhi, buf + CHUNK_TABLE_OFFSET);
435 return 1;
436 }
437
438 /**
439 * Get the row of the audio file table corresponding to the given path.
440 *
441 * \param path The full path of the audio file.
442 * \param row Result pointer.
443 *
444 * \return The return value of the underlying call to osl_get_row().
445 */
446 int aft_get_row_of_path(const char *path, struct osl_row **row)
447 {
448 struct osl_object obj = {.data = (char *)path, .size = strlen(path) + 1};
449
450 return osl_get_row(audio_file_table, AFTCOL_PATH, &obj, row);
451 }
452
453 /**
454 * Get the row of the audio file table corresponding to the given hash value.
455 *
456 * \param hash The hash value of the desired audio file.
457 * \param row resul pointer.
458 *
459 * \return The return value of the underlying call to osl_get_row().
460 */
461 int aft_get_row_of_hash(HASH_TYPE *hash, struct osl_row **row)
462 {
463 const struct osl_object obj = {.data = hash, .size = HASH_SIZE};
464 return osl_get_row(audio_file_table, AFTCOL_HASH, &obj, row);
465 }
466
467 /**
468 * Get the osl object holding the audio file selector info of a row.
469 *
470 * \param row Pointer to a row in the audio file table.
471 * \param obj Result pointer.
472 *
473 * \return The return value of the underlying call to osl_get_object().
474 */
475 int get_afsi_object_of_row(const struct osl_row *row, struct osl_object *obj)
476 {
477 return osl_get_object(audio_file_table, row, AFTCOL_AFSI, obj);
478 }
479
480 /**
481 * Get the osl object holding the audio file selector info, given a path.
482 *
483 *
484 * \param path The full path of the audio file.
485 * \param obj Result pointer.
486 *
487 * \return Positive on success, negative on errors.
488 */
489 int get_afsi_object_of_path(const char *path, struct osl_object *obj)
490 {
491 struct osl_row *row;
492 int ret = aft_get_row_of_path(path, &row);
493 if (ret < 0)
494 return ret;
495 return get_afsi_object_of_row(row, obj);
496 }
497
498 /**
499 * Get the audio file selector info, given a row of the audio file table.
500 *
501 * \param row Pointer to a row in the audio file table.
502 * \param afsi Result pointer.
503 *
504 * \return Positive on success, negative on errors.
505 */
506 int get_afsi_of_row(const struct osl_row *row, struct afs_info *afsi)
507 {
508 struct osl_object obj;
509 int ret = get_afsi_object_of_row(row, &obj);
510 if (ret < 0)
511 return ret;
512 return load_afsi(afsi, &obj);
513 }
514
515 /**
516 * Get the audio file selector info, given the path of an audio table.
517 *
518 * \param path The full path of the audio file.
519 * \param afsi Result pointer.
520 *
521 * \return Positive on success, negative on errors.
522 */
523 int get_afsi_of_path(const char *path, struct afs_info *afsi)
524 {
525 struct osl_object obj;
526 int ret = get_afsi_object_of_path(path, &obj);
527 if (ret < 0)
528 return ret;
529 return load_afsi(afsi, &obj);
530 }
531
532 /**
533 * Get the path of an audio file, given a row of the audio file table.
534 *
535 * \param row Pointer to a row in the audio file table.
536 * \param path Result pointer.
537 *
538 * The result is a pointer to mmapped data. The caller must not attempt
539 * to free it.
540 *
541 * \return Standard.
542 */
543 int get_audio_file_path_of_row(const struct osl_row *row, char **path)
544 {
545 struct osl_object path_obj;
546 int ret = osl_get_object(audio_file_table, row, AFTCOL_PATH,
547 &path_obj);
548 if (ret < 0)
549 return ret;
550 *path = path_obj.data;
551 return 1;
552 }
553
554 /**
555 * Get the object containing the hash value of an audio file, given a row.
556 *
557 * \param row Pointer to a row of the audio file table.
558 * \param obj Result pointer.
559 *
560 * \return The return value of the underlying call to osl_get_object().
561 *
562 * \sa get_hash_of_row().
563 */
564 static int get_hash_object_of_aft_row(const struct osl_row *row, struct osl_object *obj)
565 {
566 return osl_get_object(audio_file_table, row, AFTCOL_HASH, obj);
567 }
568
569 /**
570 * Get the hash value of an audio file, given a row of the audio file table.
571 *
572 * \param row Pointer to a row of the audio file table.
573 * \param hash Result pointer.
574 *
575 * \a hash points to mapped data and must not be freed by the caller.
576 *
577 * \return The return value of the underlying call to
578 * get_hash_object_of_aft_row().
579 */
580 static int get_hash_of_row(const struct osl_row *row, HASH_TYPE **hash)
581 {
582 struct osl_object obj;
583 int ret = get_hash_object_of_aft_row(row, &obj);
584
585 if (ret < 0)
586 return ret;
587 *hash = obj.data;
588 return 1;
589 }
590
591 /**
592 * Get the audio format handler info, given a row of the audio file table.
593 *
594 * \param row Pointer to a row of the audio file table.
595 * \param afhi Result pointer.
596 *
597 * \return The return value of the underlying call to osl_get_object().
598 *
599 * \sa get_chunk_table_of_row().
600 */
601 int get_afhi_of_row(const struct osl_row *row, struct afh_info *afhi)
602 {
603 struct osl_object obj;
604 int ret = osl_get_object(audio_file_table, row, AFTCOL_AFHI,
605 &obj);
606 if (ret < 0)
607 return ret;
608 load_afhi(obj.data, afhi);
609 return 1;
610 }
611
612 /* returns shmid on success */
613 static int save_afd(struct audio_file_data *afd)
614 {
615 size_t size = sizeof(*afd)
616 + 4 * (afd->afhi.chunks_total + 1);
617
618 PARA_DEBUG_LOG("size: %zu\n", size);
619 int shmid, ret = shm_new(size);
620 void *shm_afd;
621 char *buf;
622
623 if (ret < 0)
624 return ret;
625 shmid = ret;
626 ret = shm_attach(shmid, ATTACH_RW, &shm_afd);
627 if (ret < 0)
628 goto err;
629 *(struct audio_file_data *)shm_afd = *afd;
630 buf = shm_afd;
631 buf += sizeof(*afd);
632 save_chunk_table(&afd->afhi, buf);
633 shm_detach(shm_afd);
634 return shmid;
635 err:
636 shm_destroy(shmid);
637 return ret;
638 }
639
640 int load_afd(int shmid, struct audio_file_data *afd)
641 {
642 void *shm_afd;
643 char *buf;
644 int ret;
645
646 ret = shm_attach(shmid, ATTACH_RO, &shm_afd);
647 if (ret < 0)
648 return ret;
649 *afd = *(struct audio_file_data *)shm_afd;
650 buf = shm_afd;
651 buf += sizeof(*afd);
652 afd->afhi.chunk_table = para_malloc((afd->afhi.chunks_total + 1) * 4);
653 load_chunk_table(&afd->afhi, buf);
654 shm_detach(shm_afd);
655 return 1;
656 }
657
658 /**
659 * Mmap the given audio file and update statistics.
660 *
661 * \param aft_row Determines the audio file to be opened and updated.
662 * \param afd Result pointer.
663 *
664 * On success, the numplayed field of the audio file selector info is increased
665 * and the lastplayed time is set to the current time. Finally, the score of
666 * the audio file is updated.
667 *
668 * \return Positive on success, negative on errors.
669 */
670 int open_and_update_audio_file(struct osl_row *aft_row, struct audio_file_data *afd)
671 {
672 HASH_TYPE *aft_hash, file_hash[HASH_SIZE];
673 struct osl_object afsi_obj;
674 struct afs_info new_afsi;
675 int ret = get_hash_of_row(aft_row, &aft_hash);
676 struct afsi_change_event_data aced;
677 struct osl_object map, chunk_table_obj;
678 char *tmp, *path;
679
680 if (ret < 0)
681 return ret;
682 ret = get_audio_file_path_of_row(aft_row, &path);
683 if (ret < 0)
684 return ret;
685 strncpy(afd->path, path, sizeof(afd->path) - 1);
686 afd->path[sizeof(afd->path) - 1] = '\0';
687 ret = get_afsi_object_of_row(aft_row, &afsi_obj);
688 if (ret < 0)
689 return ret;
690 ret = load_afsi(&afd->afsi, &afsi_obj);
691 if (ret < 0)
692 return ret;
693 ret = get_afhi_of_row(aft_row, &afd->afhi);
694 if (ret < 0)
695 return ret;
696 ret = osl_open_disk_object(audio_file_table, aft_row,
697 AFTCOL_CHUNKS, &chunk_table_obj);
698 if (ret < 0)
699 return ret;
700 ret = mmap_full_file(path, O_RDONLY, &map.data,
701 &map.size, &afd->fd);
702 if (ret < 0)
703 goto err;
704 hash_function(map.data, map.size, file_hash);
705 ret = hash_compare(file_hash, aft_hash);
706 para_munmap(map.data, map.size);
707 if (ret) {
708 ret = -E_HASH_MISMATCH;
709 goto err;
710 }
711 new_afsi = afd->afsi;
712 new_afsi.num_played++;
713 new_afsi.last_played = time(NULL);
714 save_afsi(&new_afsi, &afsi_obj); /* in-place update */
715
716 ret = load_chunk_info(&chunk_table_obj, &afd->afhi);
717 if (ret < 0)
718 goto err;
719 ret = get_attribute_text(&afd->afsi.attributes, " ", &tmp);
720 if (ret < 0)
721 goto err;
722 tmp[sizeof(afd->attributes_string) - 1] = '\0';
723 strcpy(afd->attributes_string, tmp); /* OK */
724 free(tmp);
725
726 aced.aft_row = aft_row;
727 aced.old_afsi = &afd->afsi;
728 afs_event(AFSI_CHANGE, NULL, &aced);
729 ret = save_afd(afd);
730 if (ret < 0)
731 goto err;
732 free(afd->afhi.chunk_table);
733 err:
734 osl_close_disk_object(&chunk_table_obj);
735 return ret;
736 }
737
738 static int get_local_time(uint64_t *seconds, char *buf, size_t size,
739 time_t current_time, enum ls_listing_mode lm)
740 {
741 struct tm t;
742
743 if (!localtime_r((time_t *)seconds, &t))
744 return -E_LOCALTIME;
745 if (lm == LS_MODE_MBOX) {
746 if (!strftime(buf, size, "%c", &t))
747 return -E_STRFTIME;
748 return 1;
749 }
750 if (*seconds + 6 * 30 * 24 * 3600 > current_time) {
751 if (!strftime(buf, size, "%b %e %k:%M", &t))
752 return -E_STRFTIME;
753 return 1;
754 }
755 if (!strftime(buf, size, "%b %e %Y", &t))
756 return -E_STRFTIME;
757 return 1;
758 }
759
760 /** Compute the number of (decimal) digits of a number. */
761 #define GET_NUM_DIGITS(x, num) { \
762 typeof((x)) _tmp = PARA_ABS(x); \
763 *num = 1; \
764 if ((x)) \
765 while ((_tmp) > 9) { \
766 (_tmp) /= 10; \
767 (*num)++; \
768 } \
769 }
770
771 static short unsigned get_duration_width(int seconds)
772 {
773 short unsigned width;
774 unsigned hours = seconds / 3600, mins = (seconds % 3600) / 60;
775
776 if (!hours) /* less than one hour => m:ss or mm:ss => 4 or 5 digits */
777 return 4 + (mins > 9);
778 /* more than one hour => h:mm:ss, hh:mm:ss, hhh:mm:ss, ... */
779 GET_NUM_DIGITS(hours, &width);
780 return width + 6;
781 }
782
783 static void get_duration_buf(int seconds, char *buf, short unsigned max_width)
784 {
785 unsigned hours = seconds / 3600, mins = (seconds % 3600) / 60;
786
787 if (!hours) /* m:ss or mm:ss */
788 sprintf(buf, "%*u:%02u", max_width - 3, mins, seconds % 60);
789 else /* more than one hour => h:mm:ss, hh:mm:ss, hhh:mm:ss, ... */
790 sprintf(buf, "%*u:%02u:%02u", max_width - 6, hours, mins,
791 seconds % 60);
792 }
793
794 static char *make_attribute_lines(const char *att_bitmap, struct afs_info *afsi)
795 {
796 char *att_text, *att_lines;
797
798 get_attribute_text(&afsi->attributes, " ", &att_text);
799 if (!att_text)
800 return para_strdup(att_bitmap);
801 att_lines = make_message("%s\nattributes_txt: %s",
802 att_bitmap, att_text);
803 free(att_text);
804 return att_lines;
805 }
806
807 static char *make_lyrics_line(struct afs_info *afsi)
808 {
809 char *lyrics_name;
810
811 lyr_get_name_by_id(afsi->lyrics_id, &lyrics_name);
812 if (!lyrics_name)
813 return make_message("%u", afsi->lyrics_id);
814 return make_message("%u (%s)", afsi->lyrics_id, lyrics_name);
815 }
816
817 static char *make_image_line(struct afs_info *afsi)
818 {
819 char *image_name;
820 img_get_name_by_id(afsi->image_id, &image_name);
821 if (!image_name)
822 return make_message("%u", afsi->image_id);
823 return make_message("%u (%s)", afsi->image_id, image_name);
824 }
825
826 static int print_list_item(struct ls_data *d, struct ls_options *opts,
827 struct para_buffer *b, time_t current_time)
828 {
829 int ret;
830 char att_buf[65];
831 char last_played_time[30];
832 char duration_buf[30]; /* nobody has an audio file long enough to overflow this */
833 char score_buf[30] = "";
834 struct afs_info *afsi = &d->afsi;
835 struct afh_info *afhi = &d->afhi;
836 struct ls_widths *w = &opts->widths;
837 int have_score = opts->flags & LS_FLAG_ADMISSIBLE_ONLY;
838 char asc_hash[2 * HASH_SIZE + 1];
839 char *att_lines, *lyrics_line, *image_line;
840
841 if (opts->mode == LS_MODE_SHORT) {
842 para_printf(b, "%s\n", d->path);
843 return 1;
844 }
845 get_attribute_bitmap(&afsi->attributes, att_buf);
846 ret = get_local_time(&afsi->last_played, last_played_time,
847 sizeof(last_played_time), current_time, opts->mode);
848 if (ret < 0)
849 return ret;
850 get_duration_buf(afhi->seconds_total, duration_buf, w->duration_width);
851 if (have_score) {
852 if (opts->mode == LS_MODE_LONG)
853 sprintf(score_buf, "%*li ", w->score_width, d->score);
854 else
855 sprintf(score_buf, "%li ", d->score);
856 }
857
858 if (opts->mode == LS_MODE_LONG) {
859 para_printf(b,
860 "%s" /* score */
861 "%s " /* attributes */
862 "%*d " /* image_id */
863 "%*d " /* lyrics_id */
864 "%*d " /* bitrate */
865 "%s " /* audio format */
866 "%*d " /* frequency */
867 "%d " /* channels */
868 "%s " /* duration */
869 "%*d " /* num_played */
870 "%s " /* last_played */
871 "%s\n", /* path */
872 score_buf,
873 att_buf,
874 w->image_id_width, afsi->image_id,
875 w->lyrics_id_width, afsi->lyrics_id,
876 w->bitrate_width, afhi->bitrate,
877 audio_format_name(afsi->audio_format_id),
878 w->frequency_width, afhi->frequency,
879 afhi->channels,
880 duration_buf,
881 w->num_played_width, afsi->num_played,
882 last_played_time,
883 d->path
884 );
885 return 1;
886 }
887 hash_to_asc(d->hash, asc_hash);
888 att_lines = make_attribute_lines(att_buf, afsi);
889 lyrics_line = make_lyrics_line(afsi);
890 image_line = make_image_line(afsi);
891 /* TODO: Merge this with status items */
892 if (opts->mode == LS_MODE_VERBOSE) {
893 para_printf(b,
894 "%s: %s\n" /* path */
895 "%s%s%s" /* score */
896 "attributes: %s\n"
897 "hash: %s\n"
898 "image_id: %s\n"
899 "lyrics_id: %s\n"
900 "bitrate: %dkbit/s\n"
901 "format: %s\n"
902 "frequency: %dHz\n"
903 "channels: %d\n"
904 "duration: %s\n"
905 "num_played: %d\n"
906 "last_played: %s\n"
907 "tag info: %s\n",
908 (opts->flags & LS_FLAG_FULL_PATH)?
909 "path" : "file", d->path,
910 have_score? "score: " : "", score_buf,
911 have_score? "\n" : "",
912 att_lines,
913 asc_hash,
914 image_line,
915 lyrics_line,
916 afhi->bitrate,
917 audio_format_name(afsi->audio_format_id),
918 afhi->frequency,
919 afhi->channels,
920 duration_buf,
921 afsi->num_played,
922 last_played_time,
923 afhi->info_string
924 );
925 } else { /* mbox mode */
926 struct osl_object lyrics_def;
927 lyr_get_def_by_id(afsi->lyrics_id, &lyrics_def);
928 para_printf(b,
929 "From foo@localhost %s\n"
930 "Received: from\nTo: bar\nFrom: a\n"
931 "Subject: %s\n\n" /* path */
932 "%s%s%s" /* score */
933 "%s"
934 "hash: %s\n"
935 "image_id: %s\n"
936 "lyrics_id: %s\n"
937 "bitrate: %dkbit/s\n"
938 "format: %s\n"
939 "frequency: %dHz\n"
940 "channels: %d\n"
941 "duration: %s\n"
942 "num_played: %d\n"
943 "tag info: %s\n"
944 "%s%s\n",
945 last_played_time,
946 d->path,
947 have_score? "score: " : "", score_buf,
948 have_score? "\n" : "",
949 att_lines,
950 asc_hash,
951 image_line,
952 lyrics_line,
953 afhi->bitrate,
954 audio_format_name(afsi->audio_format_id),
955 afhi->frequency,
956 afhi->channels,
957 duration_buf,
958 afsi->num_played,
959 afhi->info_string,
960 lyrics_def.data? "Lyrics:\n~~~~~~~\n" : "",
961 lyrics_def.data? (char *)lyrics_def.data : ""
962 );
963 if (lyrics_def.data)
964 osl_close_disk_object(lyrics_def.data);
965 }
966 free(att_lines);
967 free(lyrics_line);
968 free(image_line);
969 return 1;
970 }
971
972 static int ls_audio_format_compare(const void *a, const void *b)
973 {
974 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
975 return NUM_COMPARE(d1->afsi.audio_format_id, d2->afsi.audio_format_id);
976 }
977
978 static int ls_duration_compare(const void *a, const void *b)
979 {
980 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
981 return NUM_COMPARE(d1->afhi.seconds_total, d2->afhi.seconds_total);
982 }
983
984 static int ls_bitrate_compare(const void *a, const void *b)
985 {
986 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
987 return NUM_COMPARE(d1->afhi.bitrate, d2->afhi.bitrate);
988 }
989
990 static int ls_lyrics_id_compare(const void *a, const void *b)
991 {
992 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
993 return NUM_COMPARE(d1->afsi.lyrics_id, d2->afsi.lyrics_id);
994 }
995
996 static int ls_image_id_compare(const void *a, const void *b)
997 {
998 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
999 return NUM_COMPARE(d1->afsi.image_id, d2->afsi.image_id);
1000 }
1001
1002 static int ls_channels_compare(const void *a, const void *b)
1003 {
1004 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1005 return NUM_COMPARE(d1->afhi.channels, d2->afhi.channels);
1006 }
1007
1008 static int ls_frequency_compare(const void *a, const void *b)
1009 {
1010 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1011 return NUM_COMPARE(d1->afhi.frequency, d2->afhi.frequency);
1012 }
1013
1014 static int ls_num_played_compare(const void *a, const void *b)
1015 {
1016 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1017 return NUM_COMPARE(d1->afsi.num_played, d2->afsi.num_played);
1018 }
1019
1020 static int ls_last_played_compare(const void *a, const void *b)
1021 {
1022 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1023 return NUM_COMPARE(d1->afsi.last_played, d2->afsi.last_played);
1024 }
1025
1026 static int ls_score_compare(const void *a, const void *b)
1027 {
1028 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1029 return NUM_COMPARE(d1->score, d2->score);
1030 }
1031
1032 static int ls_path_compare(const void *a, const void *b)
1033 {
1034 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1035 return strcmp(d1->path, d2->path);
1036 }
1037
1038 static int sort_matching_paths(struct ls_options *options)
1039 {
1040 size_t nmemb = options->num_matching_paths;
1041 size_t size = sizeof(*options->data_ptr);
1042 int (*compar)(const void *, const void *);
1043 int i;
1044
1045 options->data_ptr = para_malloc(nmemb * sizeof(*options->data_ptr));
1046 for (i = 0; i < nmemb; i++)
1047 options->data_ptr[i] = options->data + i;
1048
1049 /* In these cases the array is already sorted */
1050 if (options->sorting == LS_SORT_BY_PATH
1051 && !(options->flags & LS_FLAG_ADMISSIBLE_ONLY)
1052 && (options->flags & LS_FLAG_FULL_PATH))
1053 return 1;
1054 if (options->sorting == LS_SORT_BY_SCORE &&
1055 options->flags & LS_FLAG_ADMISSIBLE_ONLY)
1056 return 1;
1057
1058 switch (options->sorting) {
1059 case LS_SORT_BY_PATH:
1060 compar = ls_path_compare; break;
1061 case LS_SORT_BY_SCORE:
1062 compar = ls_score_compare; break;
1063 case LS_SORT_BY_LAST_PLAYED:
1064 compar = ls_last_played_compare; break;
1065 case LS_SORT_BY_NUM_PLAYED:
1066 compar = ls_num_played_compare; break;
1067 case LS_SORT_BY_FREQUENCY:
1068 compar = ls_frequency_compare; break;
1069 case LS_SORT_BY_CHANNELS:
1070 compar = ls_channels_compare; break;
1071 case LS_SORT_BY_IMAGE_ID:
1072 compar = ls_image_id_compare; break;
1073 case LS_SORT_BY_LYRICS_ID:
1074 compar = ls_lyrics_id_compare; break;
1075 case LS_SORT_BY_BITRATE:
1076 compar = ls_bitrate_compare; break;
1077 case LS_SORT_BY_DURATION:
1078 compar = ls_duration_compare; break;
1079 case LS_SORT_BY_AUDIO_FORMAT:
1080 compar = ls_audio_format_compare; break;
1081 default:
1082 return -E_BAD_SORT;
1083 }
1084 qsort(options->data_ptr, nmemb, size, compar);
1085 return 1;
1086 }
1087
1088 /* row is either an aft_row or a row of the score table */
1089 /* TODO: Only compute widths if we need them */
1090 static int prepare_ls_row(struct osl_row *row, void *ls_opts)
1091 {
1092 int ret, i;
1093 struct ls_options *options = ls_opts;
1094 struct ls_data *d;
1095 struct ls_widths *w;
1096 unsigned short num_digits;
1097 unsigned tmp;
1098 struct osl_row *aft_row;
1099 long score;
1100 char *path;
1101
1102 if (options->flags & LS_FLAG_ADMISSIBLE_ONLY) {
1103 ret = get_score_and_aft_row(row, &score, &aft_row);
1104 if (ret < 0)
1105 return ret;
1106 } else
1107 aft_row = row;
1108 ret = get_audio_file_path_of_row(aft_row, &path);
1109 if (ret < 0)
1110 return ret;
1111 if (!(options->flags & LS_FLAG_FULL_PATH)) {
1112 char *p = strrchr(path, '/');
1113 if (p)
1114 path = p + 1;
1115 }
1116 if (options->num_patterns) {
1117 for (i = 0; i < options->num_patterns; i++) {
1118 ret = fnmatch(options->patterns[i], path, 0);
1119 if (!ret)
1120 break;
1121 if (ret == FNM_NOMATCH)
1122 continue;
1123 return -E_FNMATCH;
1124 }
1125 if (i >= options->num_patterns) /* no match */
1126 return 1;
1127 }
1128 tmp = options->num_matching_paths++;
1129 if (options->num_matching_paths > options->array_size) {
1130 options->array_size++;
1131 options->array_size *= 2;
1132 options->data = para_realloc(options->data, options->array_size
1133 * sizeof(*options->data));
1134 }
1135 d = options->data + tmp;
1136 ret = get_afsi_of_row(aft_row, &d->afsi);
1137 if (ret < 0)
1138 return ret;
1139 ret = get_afhi_of_row(aft_row, &d->afhi);
1140 if (ret < 0)
1141 return ret;
1142 d->path = path;
1143 ret = get_hash_of_row(aft_row, &d->hash);
1144 if (ret < 0)
1145 return ret;
1146 w = &options->widths;
1147 GET_NUM_DIGITS(d->afsi.image_id, &num_digits);
1148 w->image_id_width = PARA_MAX(w->image_id_width, num_digits);
1149 GET_NUM_DIGITS(d->afsi.lyrics_id, &num_digits);
1150 w->lyrics_id_width = PARA_MAX(w->lyrics_id_width, num_digits);
1151 GET_NUM_DIGITS(d->afhi.bitrate, &num_digits);
1152 w->bitrate_width = PARA_MAX(w->bitrate_width, num_digits);
1153 GET_NUM_DIGITS(d->afhi.frequency, &num_digits);
1154 w->frequency_width = PARA_MAX(w->frequency_width, num_digits);
1155 GET_NUM_DIGITS(d->afsi.num_played, &num_digits);
1156 w->num_played_width = PARA_MAX(w->num_played_width, num_digits);
1157 /* get the number of chars to print this amount of time */
1158 tmp = get_duration_width(d->afhi.seconds_total);
1159 w->duration_width = PARA_MAX(w->duration_width, tmp);
1160 if (options->flags & LS_FLAG_ADMISSIBLE_ONLY) {
1161 GET_NUM_DIGITS(score, &num_digits);
1162 num_digits++; /* add one for the sign (space or "-") */
1163 w->score_width = PARA_MAX(w->score_width, num_digits);
1164 d->score = score;
1165 }
1166 return 1;
1167 }
1168
1169 static int com_ls_callback(const struct osl_object *query,
1170 struct osl_object *ls_output)
1171 {
1172 struct ls_options *opts = query->data;
1173 char *p, *pattern_start = (char *)query->data + sizeof(*opts);
1174 struct para_buffer b = {.buf = NULL, .size = 0};
1175 int i = 0, ret;
1176 time_t current_time;
1177
1178
1179 if (opts->num_patterns) {
1180 opts->patterns = para_malloc(opts->num_patterns * sizeof(char *));
1181 for (i = 0, p = pattern_start; i < opts->num_patterns; i++) {
1182 opts->patterns[i] = p;
1183 p += strlen(p) + 1;
1184 }
1185 } else
1186 opts->patterns = NULL;
1187 if (opts->flags & LS_FLAG_ADMISSIBLE_ONLY)
1188 ret = admissible_file_loop(opts, prepare_ls_row);
1189 else
1190 ret = osl_rbtree_loop(audio_file_table, AFTCOL_PATH, opts,
1191 prepare_ls_row);
1192 if (ret < 0)
1193 goto out;
1194 ret = opts->num_patterns? -E_NO_MATCH : 0;
1195 if (!opts->num_matching_paths)
1196 goto out;
1197 ret = sort_matching_paths(opts);
1198 if (ret < 0)
1199 goto out;
1200 time(&current_time);
1201 if (opts->flags & LS_FLAG_REVERSE)
1202 for (i = opts->num_matching_paths - 1; i >= 0; i--) {
1203 ret = print_list_item(opts->data_ptr[i], opts, &b, current_time);
1204 if (ret < 0)
1205 break;
1206 }
1207 else
1208 for (i = 0; i < opts->num_matching_paths; i++) {
1209 ret = print_list_item(opts->data_ptr[i], opts, &b, current_time);
1210 if (ret < 0)
1211 break;
1212 }
1213 ret = 1;
1214 out:
1215 ls_output->data = b.buf;
1216 ls_output->size = b.size;
1217 free(opts->data);
1218 free(opts->data_ptr);
1219 free(opts->patterns);
1220 return ret;
1221 }
1222
1223 /*
1224 * TODO: flags -h (sort by hash) -lm (list in mbox format)
1225 *
1226 * long list: list hash, attributes as (xx--x-x-), file size, lastplayed
1227 * full list: list everything, including afsi, afhi, atts as clear text
1228 *
1229 * */
1230 int com_ls(int fd, int argc, char * const * const argv)
1231 {
1232 int i, ret;
1233 unsigned flags = 0;
1234 enum ls_sorting_method sort = LS_SORT_BY_PATH;
1235 enum ls_listing_mode mode = LS_MODE_SHORT;
1236 struct ls_options opts = {.patterns = NULL};
1237 struct osl_object query = {.data = &opts, .size = sizeof(opts)},
1238 ls_output;
1239
1240 for (i = 1; i < argc; i++) {
1241 const char *arg = argv[i];
1242 if (arg[0] != '-')
1243 break;
1244 if (!strcmp(arg, "--")) {
1245 i++;
1246 break;
1247 }
1248 if (!strncmp(arg, "-l", 2)) {
1249 if (!*(arg + 2)) {
1250 mode = LS_MODE_LONG;
1251 continue;
1252 }
1253 if (*(arg + 3))
1254 return -E_AFT_SYNTAX;
1255 switch(*(arg + 2)) {
1256 case 's':
1257 mode = LS_MODE_SHORT;
1258 continue;
1259 case 'l':
1260 mode = LS_MODE_LONG;
1261 continue;
1262 case 'v':
1263 mode = LS_MODE_VERBOSE;
1264 continue;
1265 case 'm':
1266 mode = LS_MODE_MBOX;
1267 continue;
1268 default:
1269 return -E_AFT_SYNTAX;
1270 }
1271 }
1272 if (!strcmp(arg, "-p")) {
1273 flags |= LS_FLAG_FULL_PATH;
1274 continue;
1275 }
1276 if (!strcmp(arg, "-a")) {
1277 flags |= LS_FLAG_ADMISSIBLE_ONLY;
1278 continue;
1279 }
1280 if (!strcmp(arg, "-r")) {
1281 flags |= LS_FLAG_REVERSE;
1282 continue;
1283 }
1284 if (!strncmp(arg, "-s", 2)) {
1285 if (!*(arg + 2) || *(arg + 3))
1286 return -E_AFT_SYNTAX;
1287 switch(*(arg + 2)) {
1288 case 'p':
1289 sort = LS_SORT_BY_PATH;
1290 continue;
1291 case 's': /* -ss implies -a */
1292 sort = LS_SORT_BY_SCORE;
1293 flags |= LS_FLAG_ADMISSIBLE_ONLY;
1294 continue;
1295 case 'l':
1296 sort = LS_SORT_BY_LAST_PLAYED;
1297 continue;
1298 case 'n':
1299 sort = LS_SORT_BY_NUM_PLAYED;
1300 continue;
1301 case 'f':
1302 sort = LS_SORT_BY_FREQUENCY;
1303 continue;
1304 case 'c':
1305 sort = LS_SORT_BY_CHANNELS;
1306 continue;
1307 case 'i':
1308 sort = LS_SORT_BY_IMAGE_ID;
1309 continue;
1310 case 'y':
1311 sort = LS_SORT_BY_LYRICS_ID;
1312 continue;
1313 case 'b':
1314 sort = LS_SORT_BY_BITRATE;
1315 continue;
1316 case 'd':
1317 sort = LS_SORT_BY_DURATION;
1318 continue;
1319 case 'a':
1320 sort = LS_SORT_BY_AUDIO_FORMAT;
1321 continue;
1322 default:
1323 return -E_AFT_SYNTAX;
1324 }
1325 }
1326 return -E_AFT_SYNTAX;
1327 }
1328 opts.flags = flags;
1329 opts.sorting = sort;
1330 opts.mode = mode;
1331 opts.num_patterns = argc - i;
1332 ret = send_option_arg_callback_request(&query, opts.num_patterns,
1333 argv + i, com_ls_callback, &ls_output);
1334 if (ret > 0) {
1335 ret = send_buffer(fd, (char *)ls_output.data);
1336 free(ls_output.data);
1337 }
1338 return ret;
1339 }
1340
1341 /**
1342 * Call the given function for each file in the audio file table.
1343 *
1344 * \param private_data An arbitrary data pointer, passed to \a func.
1345 * \param func The custom function to be called.
1346 *
1347 * \return The return value of the underlying call to osl_rbtree_loop().
1348 */
1349 int audio_file_loop(void *private_data, osl_rbtree_loop_func *func)
1350 {
1351 return osl_rbtree_loop(audio_file_table, AFTCOL_HASH, private_data,
1352 func);
1353 }
1354
1355 static struct osl_row *find_hash_sister(HASH_TYPE *hash)
1356 {
1357 const struct osl_object obj = {.data = hash, .size = HASH_SIZE};
1358 struct osl_row *row;
1359
1360 osl_get_row(audio_file_table, AFTCOL_HASH, &obj, &row);
1361 return row;
1362 }
1363
1364 enum aft_row_offsets {
1365 AFTROW_AFHI_OFFSET_POS = 0,
1366 AFTROW_CHUNKS_OFFSET_POS = 2,
1367 AFTROW_AUDIO_FORMAT_OFFSET = 4,
1368 AFTROW_FLAGS_OFFSET = 5,
1369 AFTROW_HASH_OFFSET = 9,
1370 AFTROW_PATH_OFFSET = (AFTROW_HASH_OFFSET + HASH_SIZE),
1371 };
1372
1373 /* never save the afsi, as the server knows it too. Note that afhi might be NULL.
1374 * In this case, afhi won't be stored in the buffer */
1375 static void save_audio_file_info(HASH_TYPE *hash, const char *path,
1376 struct afh_info *afhi, uint32_t flags,
1377 uint8_t audio_format_num, struct osl_object *obj)
1378 {
1379 size_t path_len = strlen(path) + 1;
1380 size_t afhi_size = sizeof_afhi_buf(afhi);
1381 size_t size = AFTROW_PATH_OFFSET + path_len + afhi_size
1382 + sizeof_chunk_info_buf(afhi);
1383 char *buf = para_malloc(size);
1384 uint16_t pos;
1385
1386 write_u8(buf + AFTROW_AUDIO_FORMAT_OFFSET, audio_format_num);
1387 write_u32(buf + AFTROW_FLAGS_OFFSET, flags);
1388
1389 memcpy(buf + AFTROW_HASH_OFFSET, hash, HASH_SIZE);
1390 strcpy(buf + AFTROW_PATH_OFFSET, path);
1391
1392 pos = AFTROW_PATH_OFFSET + path_len;
1393 PARA_DEBUG_LOG("size: %zu, afhi starts at %d\n", size, pos);
1394 PARA_DEBUG_LOG("last afhi byte: %p, pos %zu\n", buf + pos + afhi_size - 1,
1395 pos + afhi_size - 1);
1396 write_u16(buf + AFTROW_AFHI_OFFSET_POS, pos);
1397 save_afhi(afhi, buf + pos);
1398
1399 pos += afhi_size;
1400 PARA_DEBUG_LOG("size: %zu, chunks start at %d\n", size, pos);
1401 write_u16(buf + AFTROW_CHUNKS_OFFSET_POS, pos);
1402 save_chunk_info(afhi, buf + pos);
1403 PARA_DEBUG_LOG("last byte in buf: %p\n", buf + size - 1);
1404 obj->data = buf;
1405 obj->size = size;
1406 }
1407
1408 /*
1409 input:
1410 ~~~~~~
1411 HS: hash sister
1412 PB: path brother
1413 F: force flag given
1414
1415 output:
1416 ~~~~~~~
1417 AFHI: whether afhi and chunk table are computed and sent
1418 ACTION: table modifications to be performed
1419
1420 +---+----+-----+------+---------------------------------------------------+
1421 | HS | PB | F | AFHI | ACTION
1422 +---+----+-----+------+---------------------------------------------------+
1423 | Y | Y | Y | Y | if HS != PB: remove PB. HS: force afhi update,
1424 | | update path, keep afsi
1425 +---+----+-----+------+---------------------------------------------------+
1426 | Y | Y | N | N | if HS == PB: do not send callback request at all.
1427 | | otherwise: remove PB, HS: update path, keep afhi,
1428 | | afsi.
1429 +---+----+-----+------+---------------------------------------------------+
1430 | Y | N | Y | Y | (rename) force afhi update of HS, update path of
1431 | | HS, keep afsi
1432 +---+----+-----+------+---------------------------------------------------+
1433 | Y | N | N | N | (file rename) update path of HS, keep afsi, afhi
1434 +---+----+-----+------+---------------------------------------------------+
1435 | N | Y | Y | Y | (file change) update afhi, hash, of PB, keep afsi
1436 | | (force has no effect)
1437 +---+----+-----+------+---------------------------------------------------+
1438 | N | Y | N | Y | (file change) update afhi, hash of PB, keep afsi
1439 +---+----+-----+------+---------------------------------------------------+
1440 | N | N | Y | Y | (new file) create new entry (force has no effect)
1441 +---+----+-----+------+---------------------------------------------------+
1442 | N | N | N | Y | (new file) create new entry
1443 +---+----+-----+------+---------------------------------------------------+
1444
1445 afhi <=> force or no HS
1446
1447 */
1448
1449 /** Flags passed to the add command. */
1450 enum com_add_flags {
1451 /** Skip paths that exist already. */
1452 ADD_FLAG_LAZY = 1,
1453 /** Force adding. */
1454 ADD_FLAG_FORCE = 2,
1455 /** Print what is being done. */
1456 ADD_FLAG_VERBOSE = 4,
1457 /** Try to add files with unknown suffixes. */
1458 ADD_FLAG_ALL = 8,
1459 };
1460
1461 static int com_add_callback(const struct osl_object *query,
1462 struct osl_object *result)
1463 {
1464 char *buf = query->data, *path;
1465 struct osl_row *pb, *aft_row;
1466 struct osl_row *hs;
1467 struct osl_object objs[NUM_AFT_COLUMNS];
1468 HASH_TYPE *hash;
1469 char asc[2 * HASH_SIZE + 1];
1470 int ret;
1471 char afsi_buf[AFSI_SIZE];
1472 uint32_t flags = read_u32(buf + AFTROW_FLAGS_OFFSET);
1473 struct afs_info default_afsi = {.last_played = 0};
1474 struct para_buffer msg = {.buf = NULL};
1475
1476 hash = (HASH_TYPE *)buf + AFTROW_HASH_OFFSET;
1477 hash_to_asc(hash, asc);;
1478 objs[AFTCOL_HASH].data = buf + AFTROW_HASH_OFFSET;
1479 objs[AFTCOL_HASH].size = HASH_SIZE;
1480
1481 path = buf + AFTROW_PATH_OFFSET;
1482 objs[AFTCOL_PATH].data = path;
1483 objs[AFTCOL_PATH].size = strlen(path) + 1;
1484
1485 PARA_INFO_LOG("request to add %s\n", path);
1486 hs = find_hash_sister(hash);
1487 ret = aft_get_row_of_path(path, &pb);
1488 if (ret < 0 && ret != -E_RB_KEY_NOT_FOUND)
1489 return ret;
1490 if (hs && pb && hs == pb && !(flags & ADD_FLAG_FORCE)) {
1491 if (flags & ADD_FLAG_VERBOSE)
1492 para_printf(&msg, "ignoring duplicate\n");
1493 ret = 1;
1494 goto out;
1495 }
1496 if (hs && hs != pb) {
1497 struct osl_object obj;
1498 if (pb) { /* hs trumps pb, remove pb */
1499 if (flags & ADD_FLAG_VERBOSE)
1500 para_printf(&msg, "removing path brother\n");
1501 ret = osl_del_row(audio_file_table, pb);
1502 if (ret < 0)
1503 goto out;
1504 pb = NULL;
1505 }
1506 /* file rename, update hs' path */
1507 if (flags & ADD_FLAG_VERBOSE) {
1508 ret = osl_get_object(audio_file_table, hs,
1509 AFTCOL_PATH, &obj);
1510 if (ret < 0)
1511 goto out;
1512 para_printf(&msg, "renamed from %s\n", (char *)obj.data);
1513 }
1514 ret = osl_update_object(audio_file_table, hs, AFTCOL_PATH,
1515 &objs[AFTCOL_PATH]);
1516 if (ret < 0)
1517 goto out;
1518 afs_event(AUDIO_FILE_RENAME, &msg, hs);
1519 if (!(flags & ADD_FLAG_FORCE))
1520 goto out;
1521 }
1522 /* no hs or force mode, child must have sent afhi */
1523 uint16_t afhi_offset = read_u16(buf + AFTROW_AFHI_OFFSET_POS);
1524 uint16_t chunks_offset = read_u16(buf + AFTROW_CHUNKS_OFFSET_POS);
1525
1526 objs[AFTCOL_AFHI].data = buf + afhi_offset;
1527 objs[AFTCOL_AFHI].size = chunks_offset - afhi_offset;
1528 ret = -E_NO_AFHI;
1529 if (!objs[AFTCOL_AFHI].size) /* "impossible" */
1530 goto out;
1531 objs[AFTCOL_CHUNKS].data = buf + chunks_offset;
1532 objs[AFTCOL_CHUNKS].size = query->size - chunks_offset;
1533 if (pb && !hs) { /* update pb's hash */
1534 char old_asc[2 * HASH_SIZE + 1];
1535 HASH_TYPE *old_hash;
1536 ret = get_hash_of_row(pb, &old_hash);
1537 if (ret < 0)
1538 goto out;
1539 hash_to_asc(old_hash, old_asc);
1540 if (flags & ADD_FLAG_VERBOSE)
1541 para_printf(&msg, "file change: %s -> %s\n",
1542 old_asc, asc);
1543 ret = osl_update_object(audio_file_table, pb, AFTCOL_HASH,
1544 &objs[AFTCOL_HASH]);
1545 if (ret < 0)
1546 goto out;
1547 }
1548 if (hs || pb) { /* (hs != NULL and pb != NULL) implies hs == pb */
1549 struct osl_row *row = pb? pb : hs;
1550 /* update afhi and chunk_table */
1551 if (flags & ADD_FLAG_VERBOSE)
1552 para_printf(&msg, "updating afhi and chunk table\n");
1553 ret = osl_update_object(audio_file_table, row, AFTCOL_AFHI,
1554 &objs[AFTCOL_AFHI]);
1555 if (ret < 0)
1556 goto out;
1557 ret = osl_update_object(audio_file_table, row, AFTCOL_CHUNKS,
1558 &objs[AFTCOL_CHUNKS]);
1559 if (ret < 0)
1560 goto out;
1561 afs_event(AFHI_CHANGE, &msg, row);
1562 goto out;
1563 }
1564 /* new entry, use default afsi */
1565 if (flags & ADD_FLAG_VERBOSE)
1566 para_printf(&msg, "new file\n");
1567 default_afsi.last_played = time(NULL) - 365 * 24 * 60 * 60;
1568 default_afsi.audio_format_id = read_u8(buf + AFTROW_AUDIO_FORMAT_OFFSET);
1569
1570 objs[AFTCOL_AFSI].data = &afsi_buf;
1571 objs[AFTCOL_AFSI].size = AFSI_SIZE;
1572 save_afsi(&default_afsi, &objs[AFTCOL_AFSI]);
1573 ret = osl_add_and_get_row(audio_file_table, objs, &aft_row);
1574 out:
1575 if (ret < 0)
1576 para_printf(&msg, "%s\n", PARA_STRERROR(-ret));
1577 if (!msg.buf)
1578 return 0;
1579 result->data = msg.buf;
1580 result->size = msg.size;
1581 afs_event(AUDIO_FILE_ADD, &msg, aft_row);
1582 return 1;
1583 }
1584
1585 /** Used by com_add(). */
1586 struct private_add_data {
1587 /** The socket file descriptor. */
1588 int fd;
1589 /** The given add flags. */
1590 uint32_t flags;
1591 };
1592
1593 static int path_brother_callback(const struct osl_object *query,
1594 struct osl_object *result)
1595 {
1596 char *path = query->data;
1597 struct osl_row *path_brother;
1598 int ret = aft_get_row_of_path(path, &path_brother);
1599 if (ret < 0)
1600 return ret;
1601 result->data = para_malloc(sizeof(path_brother));
1602 result->size = sizeof(path_brother);
1603 *(struct osl_row **)(result->data) = path_brother;
1604 return 1;
1605 }
1606
1607 static int hash_sister_callback(const struct osl_object *query,
1608 struct osl_object *result)
1609 {
1610 HASH_TYPE *hash = query->data;
1611 struct osl_row *hash_sister;
1612
1613 hash_sister = find_hash_sister(hash);
1614 if (!hash_sister)
1615 return -E_RB_KEY_NOT_FOUND;
1616 result->data = para_malloc(sizeof(hash_sister));
1617 result->size = sizeof(hash_sister);
1618 *(struct osl_row **)(result->data) = hash_sister;
1619 return 1;
1620 }
1621
1622 static int add_one_audio_file(const char *path, const void *private_data)
1623 {
1624 int ret, ret2;
1625 uint8_t format_num = -1;
1626 const struct private_add_data *pad = private_data;
1627 struct afh_info afhi, *afhi_ptr = NULL;
1628 struct osl_row *pb = NULL, *hs = NULL; /* path brother/hash sister */
1629 struct osl_object map, obj = {.data = NULL}, query, result = {.data = NULL};
1630 HASH_TYPE hash[HASH_SIZE];
1631
1632 afhi.header_offset = 0;
1633 afhi.header_len = 0;
1634 ret = guess_audio_format(path);
1635 if (ret < 0 && !(pad->flags & ADD_FLAG_ALL))
1636 goto out_free;
1637 query.data = (char *)path;
1638 query.size = strlen(path) + 1;
1639 ret = send_callback_request(path_brother_callback, &query, &result);
1640 if (ret < 0 && ret != -E_RB_KEY_NOT_FOUND)
1641 goto out_free;
1642 if (ret >= 0) {
1643 pb = *(struct osl_row **)result.data;
1644 free(result.data);
1645 }
1646 ret = 1;
1647 if (pb && (pad->flags & ADD_FLAG_LAZY)) { /* lazy is really cheap */
1648 if (pad->flags & ADD_FLAG_VERBOSE)
1649 ret = send_va_buffer(pad->fd, "lazy-ignore: %s\n", path);
1650 goto out_free;
1651 }
1652 /* We still want to add this file. Compute its hash. */
1653 ret = mmap_full_file(path, O_RDONLY, &map.data, &map.size, NULL);
1654 if (ret < 0)
1655 goto out_free;
1656 hash_function(map.data, map.size, hash);
1657
1658 /* Check whether database contains file with the same hash. */
1659 query.data = hash;
1660 query.size = HASH_SIZE;
1661 ret = send_callback_request(hash_sister_callback, &query, &result);
1662 if (ret < 0 && ret != -E_RB_KEY_NOT_FOUND)
1663 goto out_free;
1664 if (ret >= 0) {
1665 hs = *(struct osl_row **)result.data;
1666 free(result.data);
1667 }
1668 /* Return success if we already know this file. */
1669 ret = 1;
1670 if (pb && hs && hs == pb && (!(pad->flags & ADD_FLAG_FORCE))) {
1671 if (pad->flags & ADD_FLAG_VERBOSE)
1672 ret = send_va_buffer(pad->fd,
1673 "%s exists, not forcing update\n", path);
1674 goto out_unmap;
1675 }
1676 /*
1677 * we won't recalculate the audio format info and the chunk table if
1678 * there is a hash sister unless in FORCE mode.
1679 */
1680 if (!hs || (pad->flags & ADD_FLAG_FORCE)) {
1681 ret = compute_afhi(path, map.data, map.size, &afhi);
1682 if (ret < 0)
1683 goto out_unmap;
1684 format_num = ret;
1685 afhi_ptr = &afhi;
1686 }
1687 if (pad->flags & ADD_FLAG_VERBOSE) {
1688 ret = send_va_buffer(pad->fd, "adding %s\n", path);
1689 if (ret < 0)
1690 goto out_unmap;
1691 }
1692 munmap(map.data, map.size);
1693 save_audio_file_info(hash, path, afhi_ptr, pad->flags, format_num, &obj);
1694 /* Ask afs to consider this entry for adding. */
1695 ret = send_callback_request(com_add_callback, &obj, &result);
1696 if (ret >= 0 && result.data && result.size) {
1697 ret2 = send_va_buffer(pad->fd, "%s", (char *)result.data);
1698 free(result.data);
1699 if (ret >= 0 && ret2 < 0)
1700 ret = ret2;
1701 }
1702 goto out_free;
1703
1704 out_unmap:
1705 munmap(map.data, map.size);
1706 out_free:
1707 if (ret < 0 && ret != -E_SEND)
1708 send_va_buffer(pad->fd, "failed to add %s (%s)\n", path,
1709 PARA_STRERROR(-ret));
1710 free(obj.data);
1711 if (afhi_ptr)
1712 free(afhi_ptr->chunk_table);
1713 /* it's not an error if not all files could be added */
1714 return ret == -E_SEND? ret : 1;
1715 }
1716
1717 int com_add(int fd, int argc, char * const * const argv)
1718 {
1719 int i, ret;
1720 struct private_add_data pad = {.fd = fd, .flags = 0};
1721 struct stat statbuf;
1722
1723 for (i = 1; i < argc; i++) {
1724 const char *arg = argv[i];
1725 if (arg[0] != '-')
1726 break;
1727 if (!strcmp(arg, "--")) {
1728 i++;
1729 break;
1730 }
1731 if (!strcmp(arg, "-a")) {
1732 pad.flags |= ADD_FLAG_ALL;
1733 continue;
1734 }
1735 if (!strcmp(arg, "-l")) {
1736 pad.flags |= ADD_FLAG_LAZY;
1737 continue;
1738 }
1739 if (!strcmp(arg, "-f")) {
1740 pad.flags |= ADD_FLAG_FORCE;
1741 continue;
1742 }
1743 if (!strcmp(arg, "-v")) {
1744 pad.flags |= ADD_FLAG_VERBOSE;
1745 continue;
1746 }
1747 }
1748 if (argc <= i)
1749 return -E_AFT_SYNTAX;
1750 for (; i < argc; i++) {
1751 char *path;
1752 ret = verify_path(argv[i], &path);
1753 if (ret < 0) {
1754 ret = send_va_buffer(fd, "%s: %s\n", argv[i], PARA_STRERROR(-ret));
1755 if (ret < 0)
1756 return ret;
1757 continue;
1758 }
1759 ret = stat(path, &statbuf);
1760 if (ret < 0) {
1761 ret = send_va_buffer(fd, "failed to stat %s (%s)\n", path,
1762 strerror(errno));
1763 free(path);
1764 if (ret < 0)
1765 return ret;
1766 continue;
1767 }
1768 if (S_ISDIR(statbuf.st_mode))
1769 ret = for_each_file_in_dir(path, add_one_audio_file,
1770 &pad);
1771 else
1772 ret = add_one_audio_file(path, &pad);
1773 if (ret < 0) {
1774 send_va_buffer(fd, "%s: %s\n", path, PARA_STRERROR(-ret));
1775 free(path);
1776 return ret;
1777 }
1778 free(path);
1779 }
1780 return 1;
1781
1782 }
1783
1784 /**
1785 * Flags used by the touch command.
1786 *
1787 * \sa com_touch().
1788 */
1789 enum touch_flags {
1790 /** Whether the \p FNM_PATHNAME flag should be passed to fnmatch(). */
1791 TOUCH_FLAG_FNM_PATHNAME = 1,
1792 /** Activates verbose mode. */
1793 TOUCH_FLAG_VERBOSE = 2
1794 };
1795
1796 struct com_touch_options {
1797 int32_t num_played;
1798 int64_t last_played;
1799 int32_t lyrics_id;
1800 int32_t image_id;
1801 unsigned flags;
1802 };
1803
1804 struct touch_action_data {
1805 struct com_touch_options *cto;
1806 struct para_buffer pb;
1807 };
1808
1809 static int touch_audio_file(__a_unused struct osl_table *table,
1810 struct osl_row *row, const char *name, void *data)
1811 {
1812 struct touch_action_data *tad = data;
1813 struct osl_object obj;
1814 struct afs_info old_afsi, new_afsi;
1815 int ret, no_options = tad->cto->num_played < 0 && tad->cto->last_played < 0 &&
1816 tad->cto->lyrics_id < 0 && tad->cto->image_id < 0;
1817 struct afsi_change_event_data aced;
1818
1819 ret = get_afsi_object_of_row(row, &obj);
1820 if (ret < 0) {
1821 para_printf(&tad->pb, "%s: %s\n", name, PARA_STRERROR(-ret));
1822 return 1;
1823 }
1824 ret = load_afsi(&old_afsi, &obj);
1825 if (ret < 0) {
1826 para_printf(&tad->pb, "%s: %s\n", name, PARA_STRERROR(-ret));
1827 return 1;
1828 }
1829 new_afsi = old_afsi;
1830 if (no_options) {
1831 new_afsi.num_played++;
1832 new_afsi.last_played = time(NULL);
1833 if (tad->cto->flags & TOUCH_FLAG_VERBOSE)
1834 para_printf(&tad->pb, "%s: num_played = %u, "
1835 "last_played = now()\n", name,
1836 new_afsi.num_played);
1837 } else {
1838 if (tad->cto->flags & TOUCH_FLAG_VERBOSE)
1839 para_printf(&tad->pb, "touching %s\n", name);
1840 if (tad->cto->lyrics_id >= 0)
1841 new_afsi.lyrics_id = tad->cto->lyrics_id;
1842 if (tad->cto->image_id >= 0)
1843 new_afsi.image_id = tad->cto->image_id;
1844 if (tad->cto->num_played >= 0)
1845 new_afsi.num_played = tad->cto->num_played;
1846 if (tad->cto->last_played >= 0)
1847 new_afsi.last_played = tad->cto->last_played;
1848 }
1849 save_afsi(&new_afsi, &obj); /* in-place update */
1850 aced.aft_row = row;
1851 aced.old_afsi = &old_afsi;
1852 afs_event(AFSI_CHANGE, &tad->pb, &aced);
1853 return 1;
1854 }
1855
1856 static int com_touch_callback(const struct osl_object *query,
1857 struct osl_object *result)
1858 {
1859 struct touch_action_data tad = {.cto = query->data};
1860 int ret;
1861 struct pattern_match_data pmd = {
1862 .table = audio_file_table,
1863 .loop_col_num = AFTCOL_HASH,
1864 .match_col_num = AFTCOL_PATH,
1865 .patterns = {.data = (char *)query->data + sizeof(*tad.cto),
1866 .size = query->size - sizeof(*tad.cto)},
1867 .data = &tad,
1868 .action = touch_audio_file
1869 };
1870 if (tad.cto->flags & TOUCH_FLAG_FNM_PATHNAME)
1871 pmd.fnmatch_flags |= FNM_PATHNAME;
1872 ret = for_each_matching_row(&pmd);
1873 if (ret < 0)
1874 para_printf(&tad.pb, "%s\n", PARA_STRERROR(-ret));
1875 if (tad.pb.buf) {
1876 result->data = tad.pb.buf;
1877 result->size = tad.pb.size;
1878 return 1;
1879 }
1880 return ret < 0? ret : 0;
1881 }
1882
1883 int com_touch(int fd, int argc, char * const * const argv)
1884 {
1885 struct com_touch_options cto = {
1886 .num_played = -1,
1887 .last_played = -1,
1888 .lyrics_id = -1,
1889 .image_id = -1
1890 };
1891 struct osl_object query = {.data = &cto, .size = sizeof(cto)},
1892 result;
1893 int i, ret;
1894
1895
1896 for (i = 1; i < argc; i++) {
1897 const char *arg = argv[i];
1898 if (arg[0] != '-')
1899 break;
1900 if (!strcmp(arg, "--")) {
1901 i++;
1902 break;
1903 }
1904 if (!strncmp(arg, "-n", 2)) {
1905 ret = para_atoi32(arg + 2, &cto.num_played);
1906 if (ret < 0)
1907 return ret;
1908 continue;
1909 }
1910 if (!strncmp(arg, "-l", 2)) {
1911 ret = para_atoi64(arg + 2, &cto.last_played);
1912 if (ret < 0)
1913 return ret;
1914 continue;
1915 }
1916 if (!strncmp(arg, "-y", 2)) {
1917 ret = para_atoi32(arg + 2, &cto.lyrics_id);
1918 if (ret < 0)
1919 return ret;
1920 continue;
1921 }
1922 if (!strncmp(arg, "-i", 2)) {
1923 ret = para_atoi32(arg + 2, &cto.image_id);
1924 if (ret < 0)
1925 return ret;
1926 continue;
1927 }
1928 if (!strcmp(arg, "-p")) {
1929 cto.flags |= TOUCH_FLAG_FNM_PATHNAME;
1930 continue;
1931 }
1932 if (!strcmp(arg, "-v")) {
1933 cto.flags |= TOUCH_FLAG_VERBOSE;
1934 continue;
1935 }
1936 break; /* non-option starting with dash */
1937 }
1938 if (i >= argc)
1939 return -E_AFT_SYNTAX;
1940 ret = send_option_arg_callback_request(&query, argc - i,
1941 argv + i, com_touch_callback, &result);
1942 if (ret > 0) {
1943 send_buffer(fd, (char *)result.data);
1944 free(result.data);
1945 } else if (ret < 0)
1946 send_va_buffer(fd, "%s\n", PARA_STRERROR(-ret));
1947 return ret;
1948 }
1949
1950 enum rm_flags {
1951 RM_FLAG_VERBOSE = 1,
1952 RM_FLAG_FORCE = 2,
1953 RM_FLAG_FNM_PATHNAME = 4
1954 };
1955
1956 struct com_rm_data {
1957 uint32_t flags;
1958 struct para_buffer pb;
1959 unsigned num_removed;
1960 };
1961
1962 static int remove_audio_file(__a_unused struct osl_table *table,
1963 struct osl_row *row, const char *name, void *data)
1964 {
1965 struct com_rm_data *crd = data;
1966 int ret;
1967
1968 if (crd->flags & RM_FLAG_VERBOSE)
1969 para_printf(&crd->pb, "removing %s\n", name);
1970 afs_event(AUDIO_FILE_REMOVE, &crd->pb, row);
1971 ret = osl_del_row(audio_file_table, row);
1972 if (ret < 0)
1973 para_printf(&crd->pb, "%s: %s\n", name, PARA_STRERROR(-ret));
1974 else
1975 crd->num_removed++;
1976 return 1;
1977 }
1978
1979 static int com_rm_callback(const struct osl_object *query,
1980 __a_unused struct osl_object *result)
1981 {
1982 struct com_rm_data crd = {.flags = *(uint32_t *)query->data};
1983 int ret;
1984 struct pattern_match_data pmd = {
1985 .table = audio_file_table,
1986 .loop_col_num = AFTCOL_HASH,
1987 .match_col_num = AFTCOL_PATH,
1988 .patterns = {.data = (char *)query->data + sizeof(uint32_t),
1989 .size = query->size - sizeof(uint32_t)},
1990 .data = &crd,
1991 .action = remove_audio_file
1992 };
1993 if (crd.flags & RM_FLAG_FNM_PATHNAME)
1994 pmd.fnmatch_flags |= FNM_PATHNAME;
1995 ret = for_each_matching_row(&pmd);
1996 if (ret < 0)
1997 para_printf(&crd.pb, "%s\n", PARA_STRERROR(-ret));
1998 if (!crd.num_removed && !(crd.flags & RM_FLAG_FORCE))
1999 para_printf(&crd.pb, "no matches -- nothing removed\n");
2000 else {
2001 if (crd.flags & RM_FLAG_VERBOSE)
2002 para_printf(&crd.pb, "removed %u files\n", crd.num_removed);
2003 }
2004 if (crd.pb.buf) {
2005 result->data = crd.pb.buf;
2006 result->size = crd.pb.size;
2007 return 1;
2008 }
2009 return ret < 0? ret : 0;
2010 }
2011
2012 /* TODO options: -r (recursive) */
2013 int com_rm(int fd, int argc, char * const * const argv)
2014 {
2015 uint32_t flags = 0;
2016 struct osl_object query = {.data = &flags, .size = sizeof(flags)},
2017 result;
2018 int i, ret;
2019
2020 for (i = 1; i < argc; i++) {
2021 const char *arg = argv[i];
2022 if (arg[0] != '-')
2023 break;
2024 if (!strcmp(arg, "--")) {
2025 i++;
2026 break;
2027 }
2028 if (!strcmp(arg, "-f")) {
2029 flags |= RM_FLAG_FORCE;
2030 continue;
2031 }
2032 if (!strcmp(arg, "-p")) {
2033 flags |= RM_FLAG_FNM_PATHNAME;
2034 continue;
2035 }
2036 if (!strcmp(arg, "-v")) {
2037 flags |= RM_FLAG_VERBOSE;
2038 continue;
2039 }
2040 break;
2041 }
2042 if (i >= argc)
2043 return -E_AFT_SYNTAX;
2044 ret = send_option_arg_callback_request(&query, argc - i, argv + i,
2045 com_rm_callback, &result);
2046 if (ret > 0) {
2047 send_buffer(fd, (char *)result.data);
2048 free(result.data);
2049 } else if (ret < 0)
2050 send_va_buffer(fd, "%s\n", PARA_STRERROR(-ret));
2051 return ret;
2052 }
2053
2054 /**
2055 * Flags used by the cpsi command.
2056 *
2057 * \sa com_cpsi().
2058 */
2059 enum cpsi_flags {
2060 /** Whether the lyrics id should be copied. */
2061 CPSI_FLAG_COPY_LYRICS_ID = 1,
2062 /** Whether the image id should be copied. */
2063 CPSI_FLAG_COPY_IMAGE_ID = 2,
2064 /** Whether the lastplayed time should be copied. */
2065 CPSI_FLAG_COPY_LASTPLAYED = 4,
2066 /** Whether the numplayed count should be copied. */
2067 CPSI_FLAG_COPY_NUMPLAYED = 8,
2068 /** Whether the attributes should be copied. */
2069 CPSI_FLAG_COPY_ATTRIBUTES = 16,
2070 /** Activates verbose mode. */
2071 CPSI_FLAG_VERBOSE = 32,
2072 };
2073
2074 struct cpsi_action_data {
2075 unsigned flags;
2076 unsigned num_copied;
2077 struct para_buffer pb;
2078 struct afs_info source_afsi;
2079 };
2080
2081 static int copy_selector_info(__a_unused struct osl_table *table,
2082 struct osl_row *row, const char *name, void *data)
2083 {
2084 struct cpsi_action_data *cad = data;
2085 struct osl_object target_afsi_obj;
2086 int ret;
2087 struct afs_info old_afsi, target_afsi;
2088 struct afsi_change_event_data aced;
2089
2090 ret = get_afsi_object_of_row(row, &target_afsi_obj);
2091 if (ret < 0)
2092 return ret;
2093 load_afsi(&target_afsi, &target_afsi_obj);
2094 old_afsi = target_afsi;
2095 if (cad->flags & CPSI_FLAG_COPY_LYRICS_ID)
2096 target_afsi.lyrics_id = cad->source_afsi.lyrics_id;
2097 if (cad->flags & CPSI_FLAG_COPY_IMAGE_ID)
2098 target_afsi.image_id = cad->source_afsi.image_id;
2099 if (cad->flags & CPSI_FLAG_COPY_LASTPLAYED)
2100 target_afsi.last_played = cad->source_afsi.last_played;
2101 if (cad->flags & CPSI_FLAG_COPY_NUMPLAYED)
2102 target_afsi.num_played = cad->source_afsi.num_played;
2103 if (cad->flags & CPSI_FLAG_COPY_ATTRIBUTES)
2104 target_afsi.attributes = cad->source_afsi.attributes;
2105 save_afsi(&target_afsi, &target_afsi_obj); /* in-place update */
2106 cad->num_copied++;
2107 if (cad->flags & CPSI_FLAG_VERBOSE)
2108 para_printf(&cad->pb, "copied afsi to %s\n", name);
2109 aced.aft_row = row;
2110 aced.old_afsi = &old_afsi;
2111 afs_event(AFSI_CHANGE, &cad->pb, &aced);
2112 return 1;
2113 }
2114
2115 static int com_cpsi_callback(const struct osl_object *query,
2116 struct osl_object *result)
2117 {
2118 struct cpsi_action_data cad = {.flags = *(unsigned *)query->data};
2119 int ret;
2120 char *source_path = (char *)query->data + sizeof(cad.flags);
2121
2122 ret = get_afsi_of_path(source_path, &cad.source_afsi);
2123 if (ret < 0)
2124 goto out;
2125 struct pattern_match_data pmd = {
2126 .table = audio_file_table,
2127 .loop_col_num = AFTCOL_HASH,
2128 .match_col_num = AFTCOL_PATH,
2129 .patterns = {.data = source_path + strlen(source_path) + 1,
2130 .size = query->size - sizeof(cad.flags)
2131 - strlen(source_path) - 1},
2132 .data = &cad,
2133 .action = copy_selector_info
2134 };
2135 ret = for_each_matching_row(&pmd);
2136 out:
2137 if (ret < 0)
2138 para_printf(&cad.pb, "%s\n", PARA_STRERROR(-ret));
2139 if (cad.flags & CPSI_FLAG_VERBOSE) {
2140 if (cad.num_copied)
2141 para_printf(&cad.pb, "copied requested afsi from %s "
2142 "to %u files\n",
2143 source_path, cad.num_copied);
2144 else
2145 para_printf(&cad.pb, "nothing copied\n");
2146 }
2147 if (cad.pb.buf) {
2148 result->data = cad.pb.buf;
2149 result->size = cad.pb.size;
2150 return 1;
2151 }
2152 return ret < 0? ret : 0;
2153 }
2154
2155 int com_cpsi(int fd, int argc, char * const * const argv)
2156 {
2157 unsigned flags = 0;
2158 int i, ret;
2159 struct osl_object options = {.data = &flags, .size = sizeof(flags)},
2160 result;
2161
2162 for (i = 1; i < argc; i++) {
2163 const char *arg = argv[i];
2164 if (arg[0] != '-')
2165 break;
2166 if (!strcmp(arg, "--")) {
2167 i++;
2168 break;
2169 }
2170 if (!strcmp(arg, "-y")) {
2171 flags |= CPSI_FLAG_COPY_LYRICS_ID;
2172 continue;
2173 }
2174 if (!strcmp(arg, "-i")) {
2175 flags |= CPSI_FLAG_COPY_IMAGE_ID;
2176 continue;
2177 }
2178 if (!strcmp(arg, "-l")) {
2179 flags |= CPSI_FLAG_COPY_LASTPLAYED;
2180 continue;
2181 }
2182 if (!strcmp(arg, "-n")) {
2183 flags |= CPSI_FLAG_COPY_NUMPLAYED;
2184 continue;
2185 }
2186 if (!strcmp(arg, "-a")) {
2187 flags |= CPSI_FLAG_COPY_ATTRIBUTES;
2188 continue;
2189 }
2190 if (!strcmp(arg, "-v")) {
2191 flags |= CPSI_FLAG_VERBOSE;
2192 continue;
2193 }
2194 break;
2195 }
2196 if (i + 1 >= argc) /* need at least souce file and pattern */
2197 return -E_AFT_SYNTAX;
2198 if (!(flags & ~CPSI_FLAG_VERBOSE)) /* no copy flags given */
2199 flags = ~(unsigned)CPSI_FLAG_VERBOSE | flags;
2200 ret = send_option_arg_callback_request(&options, argc - i, argv + i,
2201 com_cpsi_callback, &result);
2202 if (ret > 0) {
2203 send_buffer(fd, (char *)result.data);
2204 free(result.data);
2205 } else
2206 send_va_buffer(fd, "%s\n", PARA_STRERROR(-ret));
2207 return ret;
2208 }
2209
2210 /* TODO: optionally fix problems by removing offending rows */
2211 static int check_audio_file(struct osl_row *row, void *data)
2212 {
2213 char *path;
2214 struct para_buffer *pb = data;
2215 struct stat statbuf;
2216 int ret = get_audio_file_path_of_row(row, &path);
2217 struct afs_info afsi;
2218 char *blob_name;
2219
2220 if (ret < 0) {
2221 para_printf(pb, "%s\n", PARA_STRERROR(-ret));
2222 return 1;
2223 }
2224 if (stat(path, &statbuf) < 0)
2225 para_printf(pb, "%s: stat error (%s)\n", path, strerror(errno));
2226 else {
2227 if (!S_ISREG(statbuf.st_mode))
2228 para_printf(pb, "%s: not a regular file\n", path);
2229 }
2230 ret = get_afsi_of_row(row, &afsi);
2231 if (ret < 0) {
2232 para_printf(pb, "%s: %s\n", path, PARA_STRERROR(-ret));
2233 return 1;
2234 }
2235 ret = lyr_get_name_by_id(afsi.lyrics_id, &blob_name);
2236 if (ret < 0)
2237 para_printf(pb, "%s lyrics id %u: %s\n", path, afsi.lyrics_id,
2238 PARA_STRERROR(-ret));
2239 ret = img_get_name_by_id(afsi.image_id, &blob_name);
2240 if (ret < 0)
2241 para_printf(pb, "%s image id %u: %s\n", path, afsi.image_id,
2242 PARA_STRERROR(-ret));
2243 return 1;
2244 }
2245
2246 /**
2247 * Check the audio file table for inconsistencies.
2248 *
2249 * \param query Unused.
2250 * \param result Contains message string upon return.
2251 *
2252 * This function always succeeds.
2253 *
2254 * \sa com_check().
2255 */
2256 int aft_check_callback(__a_unused const struct osl_object *query, struct osl_object *result)
2257 {
2258 struct para_buffer pb = {.buf = NULL};
2259
2260 para_printf(&pb, "checking audio file table...\n");
2261 audio_file_loop(&pb, check_audio_file);
2262 result->data = pb.buf;
2263 result->size = pb.size;
2264 return 1;
2265
2266 }
2267
2268 /**
2269 * Close the audio file table.
2270 *
2271 * \param flags Usual flags that are passed to osl_close_table().
2272 *
2273 * \sa osl_close_table().
2274 */
2275 static void aft_close(void)
2276 {
2277 osl_close_table(audio_file_table, OSL_MARK_CLEAN);
2278 audio_file_table = NULL;
2279 }
2280
2281 /**
2282 * Open the audio file table.
2283 *
2284 * \param dir The database directory.
2285 *
2286 * \return Standard.
2287 *
2288 * \sa osl_open_table().
2289 */
2290 static int aft_open(const char *dir)
2291 {
2292 int ret;
2293
2294 audio_file_table_desc.dir = dir;
2295 ret = osl_open_table(&audio_file_table_desc, &audio_file_table);
2296 if (ret >= 0) {
2297 unsigned num;
2298 osl_get_num_rows(audio_file_table, &num);
2299 PARA_INFO_LOG("audio file table contains %d files\n", num);
2300 return ret;
2301 }
2302 PARA_INFO_LOG("failed to open audio file table\n");
2303 audio_file_table = NULL;
2304 if (ret >= 0 || is_errno(-ret, ENOENT))
2305 return 1;
2306 return ret;
2307 }
2308
2309 static int aft_create(const char *dir)
2310 {
2311 audio_file_table_desc.dir = dir;
2312 return osl_create_table(&audio_file_table_desc);
2313 }
2314
2315 static int clear_attribute(struct osl_row *row, void *data)
2316 {
2317 struct rmatt_event_data *red = data;
2318 struct afs_info afsi;
2319 struct osl_object obj;
2320 int ret = get_afsi_object_of_row(row, &obj);
2321 uint64_t mask = ~(1ULL << red->bitnum);
2322
2323 if (ret < 0)
2324 return ret;
2325 ret = load_afsi(&afsi, &obj);
2326 if (ret < 0)
2327 return ret;
2328 afsi.attributes &= mask;
2329 save_afsi(&afsi, &obj);
2330 return 1;
2331 }
2332
2333 static int aft_event_handler(enum afs_events event, struct para_buffer *pb,
2334 void *data)
2335 {
2336 switch(event) {
2337 case ATTRIBUTE_REMOVE: {
2338 const struct rmatt_event_data *red = data;
2339 para_printf(pb, "clearing attribute %s (bit %u) from all "
2340 "entries in the audio file table\n", red->name,
2341 red->bitnum);
2342 return audio_file_loop(data, clear_attribute);
2343 }
2344 default:
2345 return 1;
2346 }
2347 }
2348
2349 void aft_init(struct afs_table *t)
2350 {
2351 t->name = audio_file_table_desc.name;
2352 t->open = aft_open;
2353 t->close = aft_close;
2354 t->create = aft_create;
2355 t->event_handler = aft_event_handler;
2356 }