aae6d66b0bfbd511fb7a7aabbf14f2c1dbab74a7
[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
21 static struct osl_table *audio_file_table;
22
23 /** The different sorting methods of the ls command. */
24 enum ls_sorting_method {
25 /** -sp (default) */
26 LS_SORT_BY_PATH,
27 /** -ss */
28 LS_SORT_BY_SCORE,
29 /** -sl */
30 LS_SORT_BY_LAST_PLAYED,
31 /** -sn */
32 LS_SORT_BY_NUM_PLAYED,
33 /** -sf */
34 LS_SORT_BY_FREQUENCY,
35 /** -sc */
36 LS_SORT_BY_CHANNELS,
37 /** -si */
38 LS_SORT_BY_IMAGE_ID,
39 /** -sy */
40 LS_SORT_BY_LYRICS_ID,
41 /** -sb */
42 LS_SORT_BY_BITRATE,
43 /** -sd */
44 LS_SORT_BY_DURATION,
45 /** -sa */
46 LS_SORT_BY_AUDIO_FORMAT,
47 /** -sh */
48 LS_SORT_BY_HASH,
49 };
50
51 /** The different listing modes of the ls command. */
52 enum ls_listing_mode {
53 /** Default listing mode. */
54 LS_MODE_SHORT,
55 /** -l or -ll */
56 LS_MODE_LONG,
57 /** -lv */
58 LS_MODE_VERBOSE,
59 /** -lm */
60 LS_MODE_MBOX
61 };
62
63 /** The flags accepted by the ls command. */
64 enum ls_flags {
65 /** -p */
66 LS_FLAG_FULL_PATH = 1,
67 /** -a */
68 LS_FLAG_ADMISSIBLE_ONLY = 2,
69 /** -r */
70 LS_FLAG_REVERSE = 4,
71 };
72
73 /**
74 * The size of the individual output fields of the ls command.
75 *
76 * These depend on the actual content being listed. If, for instance only files
77 * with duration less than an hour are being listed, then the duration with is
78 * made smaller because then the duration is listed as mm:ss rather than
79 * hh:mm:ss.
80 */
81 struct ls_widths {
82 /** size of the score field. */
83 unsigned short score_width;
84 /** size of the image id field. */
85 unsigned short image_id_width;
86 /** size of the lyrics id field. */
87 unsigned short lyrics_id_width;
88 /** size of the bitrate field. */
89 unsigned short bitrate_width;
90 /** size of the frequency field. */
91 unsigned short frequency_width;
92 /** size of the duration field. */
93 unsigned short duration_width;
94 /** size of the num played field. */
95 unsigned short num_played_width;
96 };
97
98 /** Data passed to the different compare functions (called by qsort()). */
99 struct ls_data {
100 /** Usual audio format handler information. */
101 struct audio_format_info afhi;
102 /** Audio file selector information. */
103 struct afs_info afsi;
104 /** The full path of the audio file. */
105 char *path;
106 /** The score value (if -a was given). */
107 long score;
108 /** The sha1 hash of audio file. */
109 HASH_TYPE *hash;
110 };
111
112 struct ls_options {
113 unsigned flags;
114 enum ls_sorting_method sorting;
115 enum ls_listing_mode mode;
116 char **patterns;
117 int num_patterns;
118 struct ls_widths widths;
119 uint32_t array_size;
120 uint32_t num_matching_paths;
121 struct ls_data *data;
122 struct ls_data **data_ptr;
123 };
124
125 /**
126 * Describes the layout of the mmapped-afs info struct.
127 *
128 * \sa struct afs_info.
129 */
130 enum afsi_offsets {
131 /** Where .last_played is stored. */
132 AFSI_LAST_PLAYED_OFFSET = 0,
133 /** Storage position of the attributes bitmap. */
134 AFSI_ATTRIBUTES_OFFSET = 8,
135 /** Storage position of the .num_played field. */
136 AFSI_NUM_PLAYED_OFFSET = 16,
137 /** Storage position of the .image_id field. */
138 AFSI_IMAGE_ID_OFFSET = 20,
139 /** Storage position of the .lyrics_id field. */
140 AFSI_LYRICS_ID_OFFSET = 24,
141 /** Storage position of the .audio_format_id field. */
142 AFSI_AUDIO_FORMAT_ID_OFFSET = 28,
143 /** 3 bytes reserved space for future usage. */
144 AFSI_AUDIO_FORMAT_UNUSED_OFFSET = 29,
145 /** On-disk storage space needed. */
146 AFSI_SIZE = 32
147 };
148
149 /**
150 * Convert a struct afs_info to an osl object.
151 *
152 * \param afsi Pointer to the audio file info to be converted.
153 * \param obj Result pointer.
154 *
155 * \sa load_afsi().
156 */
157 void save_afsi(struct afs_info *afsi, struct osl_object *obj)
158 {
159 char *buf = obj->data;
160
161 write_u64(buf + AFSI_LAST_PLAYED_OFFSET, afsi->last_played);
162 write_u64(buf + AFSI_ATTRIBUTES_OFFSET, afsi->attributes);
163 write_u32(buf + AFSI_NUM_PLAYED_OFFSET, afsi->num_played);
164 write_u32(buf + AFSI_IMAGE_ID_OFFSET, afsi->image_id);
165 write_u32(buf + AFSI_LYRICS_ID_OFFSET, afsi->lyrics_id);
166 write_u8(buf + AFSI_AUDIO_FORMAT_ID_OFFSET,
167 afsi->audio_format_id);
168 memset(buf + AFSI_AUDIO_FORMAT_UNUSED_OFFSET, 0, 3);
169 }
170
171 /**
172 * Get the audio file selector info struct stored in an osl object.
173 *
174 * \param afsi Points to the audio_file info structure to be filled in.
175 * \param obj The osl object holding the data.
176 *
177 * \return Positive on success, negative on errors. Possible errors: \p E_BAD_AFS.
178 *
179 * \sa save_afsi().
180 */
181 int load_afsi(struct afs_info *afsi, struct osl_object *obj)
182 {
183 char *buf = obj->data;
184 if (obj->size < AFSI_SIZE)
185 return -E_BAD_AFSI;
186 afsi->last_played = read_u64(buf + AFSI_LAST_PLAYED_OFFSET);
187 afsi->attributes = read_u64(buf + AFSI_ATTRIBUTES_OFFSET);
188 afsi->num_played = read_u32(buf + AFSI_NUM_PLAYED_OFFSET);
189 afsi->image_id = read_u32(buf + AFSI_IMAGE_ID_OFFSET);
190 afsi->lyrics_id = read_u32(buf + AFSI_LYRICS_ID_OFFSET);
191 afsi->audio_format_id = read_u8(buf +
192 AFSI_AUDIO_FORMAT_ID_OFFSET);
193 return 1;
194 }
195
196 /** The columns of the audio file table. */
197 enum audio_file_table_columns {
198 /** The hash on the content of the audio file. */
199 AFTCOL_HASH,
200 /** The full path in the filesystem. */
201 AFTCOL_PATH,
202 /** The audio file selector info. */
203 AFTCOL_AFSI,
204 /** The audio format handler info. */
205 AFTCOL_AFHI,
206 /** The chunk table info and the chunk table of the audio file. */
207 AFTCOL_CHUNKS,
208 /** The number of columns of this table. */
209 NUM_AFT_COLUMNS
210 };
211
212 static struct osl_column_description aft_cols[] = {
213 [AFTCOL_HASH] = {
214 .storage_type = OSL_MAPPED_STORAGE,
215 .storage_flags = OSL_RBTREE | OSL_FIXED_SIZE | OSL_UNIQUE,
216 .name = "hash",
217 .compare_function = osl_hash_compare,
218 .data_size = HASH_SIZE
219 },
220 [AFTCOL_PATH] = {
221 .storage_type = OSL_MAPPED_STORAGE,
222 .storage_flags = OSL_RBTREE | OSL_UNIQUE,
223 .name = "path",
224 .compare_function = string_compare,
225 },
226 [AFTCOL_AFSI] = {
227 .storage_type = OSL_MAPPED_STORAGE,
228 .storage_flags = OSL_FIXED_SIZE,
229 .name = "afs_info",
230 .data_size = AFSI_SIZE
231 },
232 [AFTCOL_AFHI] = {
233 .storage_type = OSL_MAPPED_STORAGE,
234 .name = "afh_info",
235 },
236 [AFTCOL_CHUNKS] = {
237 .storage_type = OSL_DISK_STORAGE,
238 .name = "chunks",
239 }
240 };
241
242 static struct osl_table_description audio_file_table_desc = {
243 .name = "audio_files",
244 .num_columns = NUM_AFT_COLUMNS,
245 .flags = OSL_LARGE_TABLE,
246 .column_descriptions = aft_cols
247 };
248
249 /* We don't want * dot or dot-dot anywhere. */
250 static int verify_dotfile(const char *rest)
251 {
252 /*
253 * The first character was '.', but that has already been discarded, we
254 * now test the rest.
255 */
256 switch (*rest) {
257 case '\0': case '/': /* /foo/. and /foo/./bar are not ok */
258 return -1;
259 case '.': /* path start with /foo/.. */
260 if (rest[1] == '\0' || rest[1] == '/')
261 return -1; /* /foo/.. or /foo/../bar are not ok */
262 /* /foo/..bar is ok */
263 }
264 return 1;
265 }
266
267 /*
268 * We fundamentally don't like some paths: We don't want double slashes or
269 * slashes at the end that can make pathnames ambiguous.
270 */
271 static int verify_path(const char *orig_path, char **resolved_path)
272 {
273 char c;
274 size_t len;
275 char *path;
276
277 if (*orig_path != '/') /* we only accept absolute paths */
278 return -E_BAD_PATH;
279 len = strlen(orig_path);
280 *resolved_path = para_strdup(orig_path);
281 path = *resolved_path;
282 while (len > 1 && path[--len] == '/')
283 path[len] = '\0'; /* remove slash at the end */
284 c = *path++;
285 while (c) {
286 if (c == '/') {
287 c = *path++;
288 switch (c) {
289 case '/': /* double slash */
290 goto bad_path;
291 case '.':
292 if (verify_dotfile(path) < 0)
293 goto bad_path;
294 default:
295 continue;
296 }
297 }
298 c = *path++;
299 }
300 return 1;
301 bad_path:
302 free(*resolved_path);
303 return -E_BAD_PATH;
304 }
305
306 /** The on-disk layout of a afhi struct. */
307 enum afhi_offsets {
308 /** Where the number of seconds is stored. */
309 AFHI_SECONDS_TOTAL_OFFSET = 0,
310 /** Position of the bitrate. */
311 AFHI_BITRATE_OFFSET = 4,
312 /** Position of the frequency. */
313 AFHI_FREQUENCY_OFFSET = 8,
314 /** Number of channels is stored here. */
315 AFHI_CHANNELS_OFFSET = 12,
316 /** The tag info position. */
317 AFHI_INFO_STRING_OFFSET = 13,
318 /** Minimal on-disk size of a valid afhi struct. */
319 MIN_AFHI_SIZE = 14
320 };
321
322 static unsigned sizeof_afhi_buf(const struct audio_format_info *afhi)
323 {
324 if (!afhi)
325 return 0;
326 return strlen(afhi->info_string) + MIN_AFHI_SIZE;
327 }
328
329 static void save_afhi(struct audio_format_info *afhi, char *buf)
330 {
331 if (!afhi)
332 return;
333 write_u32(buf + AFHI_SECONDS_TOTAL_OFFSET,
334 afhi->seconds_total);
335 write_u32(buf + AFHI_BITRATE_OFFSET, afhi->bitrate);
336 write_u32(buf + AFHI_FREQUENCY_OFFSET, afhi->frequency);
337 write_u8(buf + AFHI_CHANNELS_OFFSET, afhi->channels);
338 strcpy(buf + AFHI_INFO_STRING_OFFSET, afhi->info_string); /* OK */
339 PARA_DEBUG_LOG("last byte written: %p\n", buf + AFHI_INFO_STRING_OFFSET + strlen(afhi->info_string));
340 }
341
342 static void load_afhi(const char *buf, struct audio_format_info *afhi)
343 {
344 afhi->seconds_total = read_u32(buf + AFHI_SECONDS_TOTAL_OFFSET);
345 afhi->bitrate = read_u32(buf + AFHI_BITRATE_OFFSET);
346 afhi->frequency = read_u32(buf + AFHI_FREQUENCY_OFFSET);
347 afhi->channels = read_u8(buf + AFHI_CHANNELS_OFFSET);
348 strcpy(afhi->info_string, buf + AFHI_INFO_STRING_OFFSET);
349 }
350
351 static unsigned sizeof_chunk_info_buf(struct audio_format_info *afhi)
352 {
353 if (!afhi)
354 return 0;
355 return 4 * afhi->chunks_total + 20;
356
357 }
358
359 /** The offsets of the data contained in the AFTCOL_CHUNKS column. */
360 enum chunk_info_offsets{
361 /** The total number of chunks (4 bytes). */
362 CHUNKS_TOTAL_OFFSET = 0,
363 /** The length of the audio file header (4 bytes). */
364 HEADER_LEN_OFFSET = 4,
365 /** The start of the audio file header (4 bytes). */
366 HEADER_OFFSET_OFFSET = 8,
367 /** The seconds part of the chunk time (4 bytes). */
368 CHUNK_TV_TV_SEC_OFFSET = 12,
369 /** The microseconds part of the chunk time (4 bytes). */
370 CHUNK_TV_TV_USEC = 16,
371 /** Chunk table entries start here. */
372 CHUNK_TABLE_OFFSET = 20,
373 };
374
375 /* TODO: audio format handlers could just produce this */
376 static void save_chunk_info(struct audio_format_info *afhi, char *buf)
377 {
378 int i;
379
380 if (!afhi)
381 return;
382 write_u32(buf + CHUNKS_TOTAL_OFFSET, afhi->chunks_total);
383 write_u32(buf + HEADER_LEN_OFFSET, afhi->header_len);
384 write_u32(buf + HEADER_OFFSET_OFFSET, afhi->header_offset);
385 write_u32(buf + CHUNK_TV_TV_SEC_OFFSET, afhi->chunk_tv.tv_sec);
386 write_u32(buf + CHUNK_TV_TV_USEC, afhi->chunk_tv.tv_usec);
387 for (i = 0; i < afhi->chunks_total; i++)
388 write_u32(buf + CHUNK_TABLE_OFFSET + 4 * i, afhi->chunk_table[i]);
389 }
390
391 static int load_chunk_info(struct osl_object *obj, struct audio_format_info *afhi)
392 {
393 char *buf = obj->data;
394 int i;
395
396 if (obj->size < CHUNK_TABLE_OFFSET)
397 return -E_BAD_DATA_SIZE;
398
399 afhi->chunks_total = read_u32(buf + CHUNKS_TOTAL_OFFSET);
400 afhi->header_len = read_u32(buf + HEADER_LEN_OFFSET);
401 afhi->header_offset = read_u32(buf + HEADER_OFFSET_OFFSET);
402 afhi->chunk_tv.tv_sec = read_u32(buf + CHUNK_TV_TV_SEC_OFFSET);
403 afhi->chunk_tv.tv_usec = read_u32(buf + CHUNK_TV_TV_USEC);
404
405 if (afhi->chunks_total * 4 + CHUNK_TABLE_OFFSET > obj->size)
406 return -E_BAD_DATA_SIZE;
407 afhi->chunk_table = para_malloc(afhi->chunks_total * sizeof(size_t));
408 for (i = 0; i < afhi->chunks_total; i++)
409 afhi->chunk_table[i] = read_u32(buf + CHUNK_TABLE_OFFSET + 4 * i);
410 return 1;
411 }
412
413 /**
414 * Get the row of the audio file table corresponding to the given path.
415 *
416 * \param path The full path of the audio file.
417 * \param row Result pointer.
418 *
419 * \return The return value of the underlying call to osl_get_row().
420 */
421 int aft_get_row_of_path(const char *path, struct osl_row **row)
422 {
423 struct osl_object obj = {.data = (char *)path, .size = strlen(path) + 1};
424
425 return osl_get_row(audio_file_table, AFTCOL_PATH, &obj, row);
426 }
427
428 /**
429 * Get the row of the audio file table corresponding to the given hash value.
430 *
431 * \param hash The hash value of the desired audio file.
432 * \param row resul pointer.
433 *
434 * \return The return value of the underlying call to osl_get_row().
435 */
436 int aft_get_row_of_hash(HASH_TYPE *hash, struct osl_row **row)
437 {
438 const struct osl_object obj = {.data = hash, .size = HASH_SIZE};
439 return osl_get_row(audio_file_table, AFTCOL_HASH, &obj, row);
440 }
441
442 /**
443 * Get the osl object holding the audio file selector info of a row.
444 *
445 * \param row Pointer to a row in the audio file table.
446 * \param obj Result pointer.
447 *
448 * \return The return value of the underlying call to osl_get_object().
449 */
450 int get_afsi_object_of_row(const struct osl_row *row, struct osl_object *obj)
451 {
452 return osl_get_object(audio_file_table, row, AFTCOL_AFSI, obj);
453 }
454
455 /**
456 * Get the osl object holding the audio file selector info, given a path.
457 *
458 *
459 * \param path The full path of the audio file.
460 * \param obj Result pointer.
461 *
462 * \return Positive on success, negative on errors.
463 */
464 int get_afsi_object_of_path(const char *path, struct osl_object *obj)
465 {
466 struct osl_row *row;
467 int ret = aft_get_row_of_path(path, &row);
468 if (ret < 0)
469 return ret;
470 return get_afsi_object_of_row(row, obj);
471 }
472
473 /**
474 * Get the audio file selector info, given a row of the audio file table.
475 *
476 * \param row Pointer to a row in the audio file table.
477 * \param afsi Result pointer.
478 *
479 * \return Positive on success, negative on errors.
480 */
481 int get_afsi_of_row(const struct osl_row *row, struct afs_info *afsi)
482 {
483 struct osl_object obj;
484 int ret = get_afsi_object_of_row(row, &obj);
485 if (ret < 0)
486 return ret;
487 return load_afsi(afsi, &obj);
488 }
489
490 /**
491 * Get the audio file selector info, given the path of an audio table.
492 *
493 * \param path The full path of the audio file.
494 * \param afsi Result pointer.
495 *
496 * \return Positive on success, negative on errors.
497 */
498 int get_afsi_of_path(const char *path, struct afs_info *afsi)
499 {
500 struct osl_object obj;
501 int ret = get_afsi_object_of_path(path, &obj);
502 if (ret < 0)
503 return ret;
504 return load_afsi(afsi, &obj);
505 }
506
507 /**
508 * Get the path of an audio file, given a row of the audio file table.
509 *
510 * \param row Pointer to a row in the audio file table.
511 * \param path Result pointer.
512 *
513 * \return Positive on success, negative on errors.
514 */
515 int get_audio_file_path_of_row(const struct osl_row *row, char **path)
516 {
517 struct osl_object path_obj;
518 int ret = osl_get_object(audio_file_table, row, AFTCOL_PATH,
519 &path_obj);
520 if (ret < 0)
521 return ret;
522 *path = path_obj.data;
523 return 1;
524 }
525
526 /**
527 * Get the object containing the hash value of an audio file, given a row.
528 *
529 * \param row Pointer to a row of the audio file table.
530 * \param obj Result pointer.
531 *
532 * \return The return value of the underlying call to osl_get_object().
533 *
534 * \sa get_hash_of_row().
535 */
536 static int get_hash_object_of_aft_row(const struct osl_row *row, struct osl_object *obj)
537 {
538 return osl_get_object(audio_file_table, row, AFTCOL_HASH, obj);
539 }
540
541 /**
542 * Get the hash value of an audio file, given a row of the audio file table.
543 *
544 * \param row Pointer to a row of the audio file table.
545 * \param hash Result pointer.
546 *
547 * \a hash points to mapped data and must not be freed by the caller.
548 *
549 * \return The return value of the underlying call to
550 * get_hash_object_of_aft_row().
551 */
552 static int get_hash_of_row(const struct osl_row *row, HASH_TYPE **hash)
553 {
554 struct osl_object obj;
555 int ret = get_hash_object_of_aft_row(row, &obj);
556
557 if (ret < 0)
558 return ret;
559 *hash = obj.data;
560 return 1;
561 }
562
563 /**
564 * Get the audio format handler info, given a row of the audio file table.
565 *
566 * \param row Pointer to a row of the audio file table.
567 * \param afhi Result pointer.
568 *
569 * \return The return value of the underlying call to osl_get_object().
570 *
571 * \sa get_chunk_table_of_row().
572 */
573 int get_afhi_of_row(const struct osl_row *row, struct audio_format_info *afhi)
574 {
575 struct osl_object obj;
576 int ret = osl_get_object(audio_file_table, row, AFTCOL_AFHI,
577 &obj);
578 if (ret < 0)
579 return ret;
580 load_afhi(obj.data, afhi);
581 return 1;
582 }
583
584 /**
585 * Get the chunk table of an audio file, given a row of the audio file table.
586 *
587 * \param row Pointer to a row of the audio file table.
588 * \param afhi Result pointer.
589 *
590 * \return The return value of the underlying call to osl_open_disk_object().
591 *
592 * \sa get_afhi_of_row().
593 */
594 static int get_chunk_table_of_row(const struct osl_row *row, struct audio_format_info *afhi)
595 {
596 struct osl_object obj;
597 int ret = osl_open_disk_object(audio_file_table, row, AFTCOL_CHUNKS,
598 &obj);
599 if (ret < 0)
600 return ret;
601 ret = load_chunk_info(&obj, afhi);
602 osl_close_disk_object(&obj);
603 return ret;
604 }
605
606 /**
607 * Mmap the given audio file and update statistics.
608 *
609 * \param aft_row Determines the audio file to be opened and updated.
610 * \param afd Result pointer.
611 *
612 * On success, the numplayed field of the audio file selector info is increased
613 * and the lastplayed time is set to the current time. Finally, the score of
614 * the audio file is updated.
615 *
616 * \return Positive on success, negative on errors.
617 */
618 int open_and_update_audio_file(struct osl_row *aft_row, struct audio_file_data *afd)
619 {
620 HASH_TYPE *aft_hash, file_hash[HASH_SIZE];
621 struct osl_object afsi_obj;
622 struct afs_info new_afsi;
623 int ret = get_hash_of_row(aft_row, &aft_hash);
624 struct afsi_change_event_data aced;
625
626 if (ret < 0)
627 return ret;
628 ret = get_audio_file_path_of_row(aft_row, &afd->path);
629 if (ret < 0)
630 return ret;
631 ret = get_afsi_object_of_row(aft_row, &afsi_obj);
632 if (ret < 0)
633 return ret;
634 ret = load_afsi(&afd->afsi, &afsi_obj);
635 if (ret < 0)
636 return ret;
637 ret = get_afhi_of_row(aft_row, &afd->afhi);
638 if (ret < 0)
639 return ret;
640 ret = get_chunk_table_of_row(aft_row, &afd->afhi);
641 if (ret < 0)
642 return ret;
643 ret = mmap_full_file(afd->path, O_RDONLY, &afd->map.data,
644 &afd->map.size, NULL);
645 if (ret < 0)
646 goto err;
647 hash_function(afd->map.data, afd->map.size, file_hash);
648 ret = -E_HASH_MISMATCH;
649 if (hash_compare(file_hash, aft_hash))
650 goto err;
651 new_afsi = afd->afsi;
652 new_afsi.num_played++;
653 new_afsi.last_played = time(NULL);
654 save_afsi(&new_afsi, &afsi_obj); /* in-place update */
655
656 aced.aft_row = aft_row;
657 aced.old_afsi = &afd->afsi;
658 afs_event(AFSI_CHANGE, NULL, &aced);
659
660 return ret;
661 err:
662 free(afd->afhi.chunk_table);
663 return ret;
664 }
665
666 static int get_local_time(uint64_t *seconds, char *buf, size_t size,
667 time_t current_time, enum ls_listing_mode lm)
668 {
669 struct tm t;
670
671 if (!localtime_r((time_t *)seconds, &t))
672 return -E_LOCALTIME;
673 if (lm == LS_MODE_MBOX) {
674 if (!strftime(buf, size, "%c", &t))
675 return -E_STRFTIME;
676 return 1;
677 }
678 if (*seconds + 6 * 30 * 24 * 3600 > current_time) {
679 if (!strftime(buf, size, "%b %e %k:%M", &t))
680 return -E_STRFTIME;
681 return 1;
682 }
683 if (!strftime(buf, size, "%b %e %Y", &t))
684 return -E_STRFTIME;
685 return 1;
686 }
687
688 /** Compute the number of (decimal) digits of a number. */
689 #define GET_NUM_DIGITS(x, num) { \
690 typeof((x)) _tmp = PARA_ABS(x); \
691 *num = 1; \
692 if ((x)) \
693 while ((_tmp) > 9) { \
694 (_tmp) /= 10; \
695 (*num)++; \
696 } \
697 }
698
699 static short unsigned get_duration_width(int seconds)
700 {
701 short unsigned width;
702 unsigned hours = seconds / 3600, mins = (seconds % 3600) / 60;
703
704 if (!hours) /* less than one hour => m:ss or mm:ss => 4 or 5 digits */
705 return 4 + (mins > 9);
706 /* more than one hour => h:mm:ss, hh:mm:ss, hhh:mm:ss, ... */
707 GET_NUM_DIGITS(hours, &width);
708 return width + 6;
709 }
710
711 static void get_duration_buf(int seconds, char *buf, short unsigned max_width)
712 {
713 unsigned hours = seconds / 3600, mins = (seconds % 3600) / 60;
714
715 if (!hours) /* m:ss or mm:ss */
716 sprintf(buf, "%*u:%02u", max_width - 3, mins, seconds % 60);
717 else /* more than one hour => h:mm:ss, hh:mm:ss, hhh:mm:ss, ... */
718 sprintf(buf, "%*u:%02u:%02u", max_width - 6, hours, mins,
719 seconds % 60);
720 }
721
722 static char *make_attribute_line(const char *att_bitmap, struct afs_info *afsi)
723 {
724 char *att_text, *att_line;
725
726 get_attribute_text(&afsi->attributes, " ", &att_text);
727 if (!att_text)
728 return para_strdup(att_bitmap);
729 att_line = make_message("%s (%s)", att_bitmap, att_text);
730 free(att_text);
731 return att_line;
732 }
733
734 static char *make_lyrics_line(struct afs_info *afsi)
735 {
736 char *lyrics_name;
737
738 lyr_get_name_by_id(afsi->lyrics_id, &lyrics_name);
739 if (!lyrics_name)
740 return make_message("%u", afsi->lyrics_id);
741 return make_message("%u (%s)", afsi->lyrics_id, lyrics_name);
742 }
743
744 static char *make_image_line(struct afs_info *afsi)
745 {
746 char *image_name;
747 img_get_name_by_id(afsi->image_id, &image_name);
748 if (!image_name)
749 return make_message("%u", afsi->image_id);
750 return make_message("%u (%s)", afsi->image_id, image_name);
751 }
752
753 static int print_list_item(struct ls_data *d, struct ls_options *opts,
754 struct para_buffer *b, time_t current_time)
755 {
756 int ret;
757 char att_buf[65];
758 char last_played_time[30];
759 char duration_buf[30]; /* nobody has an audio file long enough to overflow this */
760 char score_buf[30] = "";
761 struct afs_info *afsi = &d->afsi;
762 struct audio_format_info *afhi = &d->afhi;
763 struct ls_widths *w = &opts->widths;
764 int have_score = opts->flags & LS_FLAG_ADMISSIBLE_ONLY;
765 char asc_hash[2 * HASH_SIZE + 1];
766 char *att_line, *lyrics_line, *image_line;
767
768 if (opts->mode == LS_MODE_SHORT) {
769 para_printf(b, "%s\n", d->path);
770 return 1;
771 }
772 get_attribute_bitmap(&afsi->attributes, att_buf);
773 ret = get_local_time(&afsi->last_played, last_played_time,
774 sizeof(last_played_time), current_time, opts->mode);
775 if (ret < 0)
776 return ret;
777 get_duration_buf(afhi->seconds_total, duration_buf, w->duration_width);
778 if (have_score) {
779 if (opts->mode == LS_MODE_LONG)
780 sprintf(score_buf, "%*li ", w->score_width, d->score);
781 else
782 sprintf(score_buf, "%li ", d->score);
783 }
784
785 if (opts->mode == LS_MODE_LONG) {
786 para_printf(b,
787 "%s" /* score */
788 "%s " /* attributes */
789 "%*d " /* image_id */
790 "%*d " /* lyrics_id */
791 "%*d " /* bitrate */
792 "%s " /* audio format */
793 "%*d " /* frequency */
794 "%d " /* channels */
795 "%s " /* duration */
796 "%*d " /* num_played */
797 "%s " /* last_played */
798 "%s\n", /* path */
799 score_buf,
800 att_buf,
801 w->image_id_width, afsi->image_id,
802 w->lyrics_id_width, afsi->lyrics_id,
803 w->bitrate_width, afhi->bitrate,
804 audio_format_name(afsi->audio_format_id),
805 w->frequency_width, afhi->frequency,
806 afhi->channels,
807 duration_buf,
808 w->num_played_width, afsi->num_played,
809 last_played_time,
810 d->path
811 );
812 return 1;
813 }
814 hash_to_asc(d->hash, asc_hash);
815 att_line = make_attribute_line(att_buf, afsi);
816 lyrics_line = make_lyrics_line(afsi);
817 image_line = make_image_line(afsi);
818 if (opts->mode == LS_MODE_VERBOSE) {
819
820 para_printf(b,
821 "%s: %s\n" /* path */
822 "%s%s%s" /* score */
823 "attributes: %s\n"
824 "hash: %s\n"
825 "image_id: %s\n"
826 "lyrics_id: %s\n"
827 "bitrate: %dkbit/s\n"
828 "format: %s\n"
829 "frequency: %dHz\n"
830 "channels: %d\n"
831 "duration: %s\n"
832 "num_played: %d\n"
833 "last_played: %s\n"
834 "tag info: %s\n",
835 (opts->flags & LS_FLAG_FULL_PATH)?
836 "path" : "file", d->path,
837 have_score? "score: " : "", score_buf,
838 have_score? "\n" : "",
839 att_line,
840 asc_hash,
841 image_line,
842 lyrics_line,
843 afhi->bitrate,
844 audio_format_name(afsi->audio_format_id),
845 afhi->frequency,
846 afhi->channels,
847 duration_buf,
848 afsi->num_played,
849 last_played_time,
850 afhi->info_string
851 );
852 } else { /* mbox mode */
853 struct osl_object lyrics_def;
854 lyr_get_def_by_id(afsi->lyrics_id, &lyrics_def);
855 para_printf(b,
856 "From foo@localhost %s\n"
857 "Received: from\nTo: bar\nFrom: a\n"
858 "Subject: %s\n\n" /* path */
859 "%s%s%s" /* score */
860 "attributes: %s\n"
861 "hash: %s\n"
862 "image_id: %s\n"
863 "lyrics_id: %s\n"
864 "bitrate: %dkbit/s\n"
865 "format: %s\n"
866 "frequency: %dHz\n"
867 "channels: %d\n"
868 "duration: %s\n"
869 "num_played: %d\n"
870 "tag info: %s\n"
871 "%s%s\n",
872 last_played_time,
873 d->path,
874 have_score? "score: " : "", score_buf,
875 have_score? "\n" : "",
876 att_line,
877 asc_hash,
878 image_line,
879 lyrics_line,
880 afhi->bitrate,
881 audio_format_name(afsi->audio_format_id),
882 afhi->frequency,
883 afhi->channels,
884 duration_buf,
885 afsi->num_played,
886 afhi->info_string,
887 lyrics_def.data? "Lyrics:\n~~~~~~~\n" : "",
888 lyrics_def.data? (char *)lyrics_def.data : ""
889 );
890 if (lyrics_def.data)
891 osl_close_disk_object(lyrics_def.data);
892 }
893 free(att_line);
894 free(lyrics_line);
895 free(image_line);
896 return 1;
897 }
898
899 static int ls_audio_format_compare(const void *a, const void *b)
900 {
901 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
902 return NUM_COMPARE(d1->afsi.audio_format_id, d2->afsi.audio_format_id);
903 }
904
905 static int ls_duration_compare(const void *a, const void *b)
906 {
907 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
908 return NUM_COMPARE(d1->afhi.seconds_total, d2->afhi.seconds_total);
909 }
910
911 static int ls_bitrate_compare(const void *a, const void *b)
912 {
913 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
914 return NUM_COMPARE(d1->afhi.bitrate, d2->afhi.bitrate);
915 }
916
917 static int ls_lyrics_id_compare(const void *a, const void *b)
918 {
919 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
920 return NUM_COMPARE(d1->afsi.lyrics_id, d2->afsi.lyrics_id);
921 }
922
923 static int ls_image_id_compare(const void *a, const void *b)
924 {
925 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
926 return NUM_COMPARE(d1->afsi.image_id, d2->afsi.image_id);
927 }
928
929 static int ls_channels_compare(const void *a, const void *b)
930 {
931 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
932 return NUM_COMPARE(d1->afhi.channels, d2->afhi.channels);
933 }
934
935 static int ls_frequency_compare(const void *a, const void *b)
936 {
937 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
938 return NUM_COMPARE(d1->afhi.frequency, d2->afhi.frequency);
939 }
940
941 static int ls_num_played_compare(const void *a, const void *b)
942 {
943 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
944 return NUM_COMPARE(d1->afsi.num_played, d2->afsi.num_played);
945 }
946
947 static int ls_last_played_compare(const void *a, const void *b)
948 {
949 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
950 return NUM_COMPARE(d1->afsi.last_played, d2->afsi.last_played);
951 }
952
953 static int ls_score_compare(const void *a, const void *b)
954 {
955 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
956 return NUM_COMPARE(d1->score, d2->score);
957 }
958
959 static int ls_path_compare(const void *a, const void *b)
960 {
961 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
962 return strcmp(d1->path, d2->path);
963 }
964
965 static int sort_matching_paths(struct ls_options *options)
966 {
967 size_t nmemb = options->num_matching_paths;
968 size_t size = sizeof(*options->data_ptr);
969 int (*compar)(const void *, const void *);
970 int i;
971
972 options->data_ptr = para_malloc(nmemb * sizeof(*options->data_ptr));
973 for (i = 0; i < nmemb; i++)
974 options->data_ptr[i] = options->data + i;
975
976 /* In these cases the array is already sorted */
977 if (options->sorting == LS_SORT_BY_PATH
978 && !(options->flags & LS_FLAG_ADMISSIBLE_ONLY)
979 && (options->flags & LS_FLAG_FULL_PATH))
980 return 1;
981 if (options->sorting == LS_SORT_BY_SCORE &&
982 options->flags & LS_FLAG_ADMISSIBLE_ONLY)
983 return 1;
984
985 switch (options->sorting) {
986 case LS_SORT_BY_PATH:
987 compar = ls_path_compare; break;
988 case LS_SORT_BY_SCORE:
989 compar = ls_score_compare; break;
990 case LS_SORT_BY_LAST_PLAYED:
991 compar = ls_last_played_compare; break;
992 case LS_SORT_BY_NUM_PLAYED:
993 compar = ls_num_played_compare; break;
994 case LS_SORT_BY_FREQUENCY:
995 compar = ls_frequency_compare; break;
996 case LS_SORT_BY_CHANNELS:
997 compar = ls_channels_compare; break;
998 case LS_SORT_BY_IMAGE_ID:
999 compar = ls_image_id_compare; break;
1000 case LS_SORT_BY_LYRICS_ID:
1001 compar = ls_lyrics_id_compare; break;
1002 case LS_SORT_BY_BITRATE:
1003 compar = ls_bitrate_compare; break;
1004 case LS_SORT_BY_DURATION:
1005 compar = ls_duration_compare; break;
1006 case LS_SORT_BY_AUDIO_FORMAT:
1007 compar = ls_audio_format_compare; break;
1008 default:
1009 return -E_BAD_SORT;
1010 }
1011 qsort(options->data_ptr, nmemb, size, compar);
1012 return 1;
1013 }
1014
1015 /* row is either an aft_row or a row of the score table */
1016 /* TODO: Only compute widths if we need them */
1017 static int prepare_ls_row(struct osl_row *row, void *ls_opts)
1018 {
1019 int ret, i;
1020 struct ls_options *options = ls_opts;
1021 struct ls_data *d;
1022 struct ls_widths *w;
1023 unsigned short num_digits;
1024 unsigned tmp;
1025 struct osl_row *aft_row;
1026 long score;
1027 char *path;
1028
1029 if (options->flags & LS_FLAG_ADMISSIBLE_ONLY) {
1030 ret = get_score_and_aft_row(row, &score, &aft_row);
1031 if (ret < 0)
1032 return ret;
1033 } else
1034 aft_row = row;
1035 ret = get_audio_file_path_of_row(aft_row, &path);
1036 if (ret < 0)
1037 return ret;
1038 if (!(options->flags & LS_FLAG_FULL_PATH)) {
1039 char *p = strrchr(path, '/');
1040 if (p)
1041 path = p + 1;
1042 }
1043 if (options->num_patterns) {
1044 for (i = 0; i < options->num_patterns; i++) {
1045 ret = fnmatch(options->patterns[i], path, 0);
1046 if (!ret)
1047 break;
1048 if (ret == FNM_NOMATCH)
1049 continue;
1050 return -E_FNMATCH;
1051 }
1052 if (i >= options->num_patterns) /* no match */
1053 return 1;
1054 }
1055 tmp = options->num_matching_paths++;
1056 if (options->num_matching_paths > options->array_size) {
1057 options->array_size++;
1058 options->array_size *= 2;
1059 options->data = para_realloc(options->data, options->array_size
1060 * sizeof(*options->data));
1061 }
1062 d = options->data + tmp;
1063 ret = get_afsi_of_row(aft_row, &d->afsi);
1064 if (ret < 0)
1065 return ret;
1066 ret = get_afhi_of_row(aft_row, &d->afhi);
1067 if (ret < 0)
1068 return ret;
1069 d->path = path;
1070 ret = get_hash_of_row(aft_row, &d->hash);
1071 if (ret < 0)
1072 return ret;
1073 w = &options->widths;
1074 GET_NUM_DIGITS(d->afsi.image_id, &num_digits);
1075 w->image_id_width = PARA_MAX(w->image_id_width, num_digits);
1076 GET_NUM_DIGITS(d->afsi.lyrics_id, &num_digits);
1077 w->lyrics_id_width = PARA_MAX(w->lyrics_id_width, num_digits);
1078 GET_NUM_DIGITS(d->afhi.bitrate, &num_digits);
1079 w->bitrate_width = PARA_MAX(w->bitrate_width, num_digits);
1080 GET_NUM_DIGITS(d->afhi.frequency, &num_digits);
1081 w->frequency_width = PARA_MAX(w->frequency_width, num_digits);
1082 GET_NUM_DIGITS(d->afsi.num_played, &num_digits);
1083 w->num_played_width = PARA_MAX(w->num_played_width, num_digits);
1084 /* get the number of chars to print this amount of time */
1085 tmp = get_duration_width(d->afhi.seconds_total);
1086 w->duration_width = PARA_MAX(w->duration_width, tmp);
1087 if (options->flags & LS_FLAG_ADMISSIBLE_ONLY) {
1088 GET_NUM_DIGITS(score, &num_digits);
1089 num_digits++; /* add one for the sign (space or "-") */
1090 w->score_width = PARA_MAX(w->score_width, num_digits);
1091 d->score = score;
1092 }
1093 return 1;
1094 }
1095
1096 static int com_ls_callback(const struct osl_object *query,
1097 struct osl_object *ls_output)
1098 {
1099 struct ls_options *opts = query->data;
1100 char *p, *pattern_start = (char *)query->data + sizeof(*opts);
1101 struct para_buffer b = {.buf = NULL, .size = 0};
1102 int i = 0, ret;
1103 time_t current_time;
1104
1105
1106 if (opts->num_patterns) {
1107 opts->patterns = para_malloc(opts->num_patterns * sizeof(char *));
1108 for (i = 0, p = pattern_start; i < opts->num_patterns; i++) {
1109 opts->patterns[i] = p;
1110 p += strlen(p) + 1;
1111 }
1112 } else
1113 opts->patterns = NULL;
1114 if (opts->flags & LS_FLAG_ADMISSIBLE_ONLY)
1115 ret = admissible_file_loop(opts, prepare_ls_row);
1116 else
1117 ret = osl_rbtree_loop(audio_file_table, AFTCOL_PATH, opts,
1118 prepare_ls_row);
1119 if (ret < 0)
1120 goto out;
1121 ret = opts->num_patterns? -E_NO_MATCH : 0;
1122 if (!opts->num_matching_paths)
1123 goto out;
1124 ret = sort_matching_paths(opts);
1125 if (ret < 0)
1126 goto out;
1127 time(&current_time);
1128 if (opts->flags & LS_FLAG_REVERSE)
1129 for (i = opts->num_matching_paths - 1; i >= 0; i--) {
1130 ret = print_list_item(opts->data_ptr[i], opts, &b, current_time);
1131 if (ret < 0)
1132 break;
1133 }
1134 else
1135 for (i = 0; i < opts->num_matching_paths; i++) {
1136 ret = print_list_item(opts->data_ptr[i], opts, &b, current_time);
1137 if (ret < 0)
1138 break;
1139 }
1140 ret = 1;
1141 out:
1142 ls_output->data = b.buf;
1143 ls_output->size = b.size;
1144 free(opts->data);
1145 free(opts->data_ptr);
1146 free(opts->patterns);
1147 return ret;
1148 }
1149
1150 /*
1151 * TODO: flags -h (sort by hash) -lm (list in mbox format)
1152 *
1153 * long list: list hash, attributes as (xx--x-x-), file size, lastplayed
1154 * full list: list everything, including afsi, afhi, atts as clear text
1155 *
1156 * */
1157 int com_afs_ls(int fd, int argc, char * const * const argv)
1158 {
1159 int i, ret;
1160 unsigned flags = 0;
1161 enum ls_sorting_method sort = LS_SORT_BY_PATH;
1162 enum ls_listing_mode mode = LS_MODE_SHORT;
1163 struct ls_options opts = {.patterns = NULL};
1164 struct osl_object query = {.data = &opts, .size = sizeof(opts)},
1165 ls_output;
1166
1167 for (i = 1; i < argc; i++) {
1168 const char *arg = argv[i];
1169 if (arg[0] != '-')
1170 break;
1171 if (!strcmp(arg, "--")) {
1172 i++;
1173 break;
1174 }
1175 if (!strncmp(arg, "-l", 2)) {
1176 if (!*(arg + 2)) {
1177 mode = LS_MODE_LONG;
1178 continue;
1179 }
1180 if (*(arg + 3))
1181 return -E_AFT_SYNTAX;
1182 switch(*(arg + 2)) {
1183 case 's':
1184 mode = LS_MODE_SHORT;
1185 continue;
1186 case 'l':
1187 mode = LS_MODE_LONG;
1188 continue;
1189 case 'v':
1190 mode = LS_MODE_VERBOSE;
1191 continue;
1192 case 'm':
1193 mode = LS_MODE_MBOX;
1194 continue;
1195 default:
1196 return -E_AFT_SYNTAX;
1197 }
1198 }
1199 if (!strcmp(arg, "-p")) {
1200 flags |= LS_FLAG_FULL_PATH;
1201 continue;
1202 }
1203 if (!strcmp(arg, "-a")) {
1204 flags |= LS_FLAG_ADMISSIBLE_ONLY;
1205 continue;
1206 }
1207 if (!strcmp(arg, "-r")) {
1208 flags |= LS_FLAG_REVERSE;
1209 continue;
1210 }
1211 if (!strncmp(arg, "-s", 2)) {
1212 if (!*(arg + 2) || *(arg + 3))
1213 return -E_AFT_SYNTAX;
1214 switch(*(arg + 2)) {
1215 case 'p':
1216 sort = LS_SORT_BY_PATH;
1217 continue;
1218 case 's': /* -ss implies -a */
1219 sort = LS_SORT_BY_SCORE;
1220 flags |= LS_FLAG_ADMISSIBLE_ONLY;
1221 continue;
1222 case 'l':
1223 sort = LS_SORT_BY_LAST_PLAYED;
1224 continue;
1225 case 'n':
1226 sort = LS_SORT_BY_NUM_PLAYED;
1227 continue;
1228 case 'f':
1229 sort = LS_SORT_BY_FREQUENCY;
1230 continue;
1231 case 'c':
1232 sort = LS_SORT_BY_CHANNELS;
1233 continue;
1234 case 'i':
1235 sort = LS_SORT_BY_IMAGE_ID;
1236 continue;
1237 case 'y':
1238 sort = LS_SORT_BY_LYRICS_ID;
1239 continue;
1240 case 'b':
1241 sort = LS_SORT_BY_BITRATE;
1242 continue;
1243 case 'd':
1244 sort = LS_SORT_BY_DURATION;
1245 continue;
1246 case 'a':
1247 sort = LS_SORT_BY_AUDIO_FORMAT;
1248 continue;
1249 default:
1250 return -E_AFT_SYNTAX;
1251 }
1252 }
1253 return -E_AFT_SYNTAX;
1254 }
1255 opts.flags = flags;
1256 opts.sorting = sort;
1257 opts.mode = mode;
1258 opts.num_patterns = argc - i;
1259 ret = send_option_arg_callback_request(&query, opts.num_patterns,
1260 argv + i, com_ls_callback, &ls_output);
1261 if (ret > 0) {
1262 ret = send_buffer(fd, (char *)ls_output.data);
1263 free(ls_output.data);
1264 }
1265 return ret;
1266 }
1267
1268 /**
1269 * Call the given function for each file in the audio file table.
1270 *
1271 * \param private_data An arbitrary data pointer, passed to \a func.
1272 * \param func The custom function to be called.
1273 *
1274 * \return The return value of the underlying call to osl_rbtree_loop().
1275 */
1276 int audio_file_loop(void *private_data, osl_rbtree_loop_func *func)
1277 {
1278 return osl_rbtree_loop(audio_file_table, AFTCOL_HASH, private_data,
1279 func);
1280 }
1281
1282 static struct osl_row *find_hash_sister(HASH_TYPE *hash)
1283 {
1284 const struct osl_object obj = {.data = hash, .size = HASH_SIZE};
1285 struct osl_row *row;
1286
1287 osl_get_row(audio_file_table, AFTCOL_HASH, &obj, &row);
1288 return row;
1289 }
1290
1291 enum aft_row_offsets {
1292 AFTROW_AFHI_OFFSET_POS = 0,
1293 AFTROW_CHUNKS_OFFSET_POS = 2,
1294 AFTROW_AUDIO_FORMAT_OFFSET = 4,
1295 AFTROW_FLAGS_OFFSET = 5,
1296 AFTROW_HASH_OFFSET = 9,
1297 AFTROW_PATH_OFFSET = (AFTROW_HASH_OFFSET + HASH_SIZE),
1298 };
1299
1300 /* never save the afsi, as the server knows it too. Note that afhi might be NULL.
1301 * In this case, afhi won't be stored in the buffer */
1302 static void save_audio_file_info(HASH_TYPE *hash, const char *path,
1303 struct audio_format_info *afhi, uint32_t flags,
1304 uint8_t audio_format_num, struct osl_object *obj)
1305 {
1306 size_t path_len = strlen(path) + 1;
1307 size_t afhi_size = sizeof_afhi_buf(afhi);
1308 size_t size = AFTROW_PATH_OFFSET + path_len + afhi_size
1309 + sizeof_chunk_info_buf(afhi);
1310 char *buf = para_malloc(size);
1311 uint16_t pos;
1312
1313 write_u8(buf + AFTROW_AUDIO_FORMAT_OFFSET, audio_format_num);
1314 write_u32(buf + AFTROW_FLAGS_OFFSET, flags);
1315
1316 memcpy(buf + AFTROW_HASH_OFFSET, hash, HASH_SIZE);
1317 strcpy(buf + AFTROW_PATH_OFFSET, path);
1318
1319 pos = AFTROW_PATH_OFFSET + path_len;
1320 PARA_DEBUG_LOG("size: %zu, afhi starts at %d\n", size, pos);
1321 PARA_DEBUG_LOG("last afhi byte: %p, pos %zu\n", buf + pos + afhi_size - 1,
1322 pos + afhi_size - 1);
1323 write_u16(buf + AFTROW_AFHI_OFFSET_POS, pos);
1324 save_afhi(afhi, buf + pos);
1325
1326 pos += afhi_size;
1327 PARA_DEBUG_LOG("size: %zu, chunks start at %d\n", size, pos);
1328 write_u16(buf + AFTROW_CHUNKS_OFFSET_POS, pos);
1329 save_chunk_info(afhi, buf + pos);
1330 PARA_DEBUG_LOG("last byte in buf: %p\n", buf + size - 1);
1331 obj->data = buf;
1332 obj->size = size;
1333 }
1334
1335 /*
1336 input:
1337 ~~~~~~
1338 HS: hash sister
1339 PB: path brother
1340 F: force flag given
1341
1342 output:
1343 ~~~~~~~
1344 AFHI: whether afhi and chunk table are computed and sent
1345 ACTION: table modifications to be performed
1346
1347 +---+----+-----+------+---------------------------------------------------+
1348 | HS | PB | F | AFHI | ACTION
1349 +---+----+-----+------+---------------------------------------------------+
1350 | Y | Y | Y | Y | if HS != PB: remove PB. HS: force afhi update,
1351 | | update path, keep afsi
1352 +---+----+-----+------+---------------------------------------------------+
1353 | Y | Y | N | N | if HS == PB: do not send callback request at all.
1354 | | otherwise: remove PB, HS: update path, keep afhi,
1355 | | afsi.
1356 +---+----+-----+------+---------------------------------------------------+
1357 | Y | N | Y | Y | (rename) force afhi update of HS, update path of
1358 | | HS, keep afsi
1359 +---+----+-----+------+---------------------------------------------------+
1360 | Y | N | N | N | (file rename) update path of HS, keep afsi, afhi
1361 +---+----+-----+------+---------------------------------------------------+
1362 | N | Y | Y | Y | (file change) update afhi, hash, of PB, keep afsi
1363 | | (force has no effect)
1364 +---+----+-----+------+---------------------------------------------------+
1365 | N | Y | N | Y | (file change) update afhi, hash of PB, keep afsi
1366 +---+----+-----+------+---------------------------------------------------+
1367 | N | N | Y | Y | (new file) create new entry (force has no effect)
1368 +---+----+-----+------+---------------------------------------------------+
1369 | N | N | N | Y | (new file) create new entry
1370 +---+----+-----+------+---------------------------------------------------+
1371
1372 afhi <=> force or no HS
1373
1374 */
1375
1376 /** Flags passed to the add command. */
1377 enum com_add_flags {
1378 /** Skip paths that exist already. */
1379 ADD_FLAG_LAZY = 1,
1380 /** Force adding. */
1381 ADD_FLAG_FORCE = 2,
1382 /** Print what is being done. */
1383 ADD_FLAG_VERBOSE = 4,
1384 /** Try to add files with unknown suffixes. */
1385 ADD_FLAG_ALL = 8,
1386 };
1387
1388 static int com_add_callback(const struct osl_object *query,
1389 struct osl_object *result)
1390 {
1391 char *buf = query->data, *path;
1392 struct osl_row *pb, *aft_row;
1393 struct osl_row *hs;
1394 struct osl_object objs[NUM_AFT_COLUMNS];
1395 HASH_TYPE *hash;
1396 char asc[2 * HASH_SIZE + 1];
1397 int ret;
1398 char afsi_buf[AFSI_SIZE];
1399 uint32_t flags = read_u32(buf + AFTROW_FLAGS_OFFSET);
1400 struct afs_info default_afsi = {.last_played = 0};
1401 struct para_buffer msg = {.buf = NULL};
1402
1403 hash = (HASH_TYPE *)buf + AFTROW_HASH_OFFSET;
1404 hash_to_asc(hash, asc);;
1405 objs[AFTCOL_HASH].data = buf + AFTROW_HASH_OFFSET;
1406 objs[AFTCOL_HASH].size = HASH_SIZE;
1407
1408 path = buf + AFTROW_PATH_OFFSET;
1409 objs[AFTCOL_PATH].data = path;
1410 objs[AFTCOL_PATH].size = strlen(path) + 1;
1411
1412 PARA_INFO_LOG("request to add %s\n", path);
1413 hs = find_hash_sister(hash);
1414 ret = aft_get_row_of_path(path, &pb);
1415 if (ret < 0 && ret != -E_RB_KEY_NOT_FOUND)
1416 return ret;
1417 if (hs && pb && hs == pb && !(flags & ADD_FLAG_FORCE)) {
1418 if (flags & ADD_FLAG_VERBOSE)
1419 para_printf(&msg, "ignoring duplicate\n");
1420 ret = 1;
1421 goto out;
1422 }
1423 if (hs && hs != pb) {
1424 struct osl_object obj;
1425 if (pb) { /* hs trumps pb, remove pb */
1426 if (flags & ADD_FLAG_VERBOSE)
1427 para_printf(&msg, "removing path brother\n");
1428 ret = osl_del_row(audio_file_table, pb);
1429 if (ret < 0)
1430 goto out;
1431 pb = NULL;
1432 }
1433 /* file rename, update hs' path */
1434 if (flags & ADD_FLAG_VERBOSE) {
1435 ret = osl_get_object(audio_file_table, hs,
1436 AFTCOL_PATH, &obj);
1437 if (ret < 0)
1438 goto out;
1439 para_printf(&msg, "renamed from %s\n", (char *)obj.data);
1440 }
1441 ret = osl_update_object(audio_file_table, hs, AFTCOL_PATH,
1442 &objs[AFTCOL_PATH]);
1443 if (ret < 0)
1444 goto out;
1445 afs_event(AUDIO_FILE_RENAME, &msg, hs);
1446 if (!(flags & ADD_FLAG_FORCE))
1447 goto out;
1448 }
1449 /* no hs or force mode, child must have sent afhi */
1450 uint16_t afhi_offset = read_u16(buf + AFTROW_AFHI_OFFSET_POS);
1451 uint16_t chunks_offset = read_u16(buf + AFTROW_CHUNKS_OFFSET_POS);
1452
1453 objs[AFTCOL_AFHI].data = buf + afhi_offset;
1454 objs[AFTCOL_AFHI].size = chunks_offset - afhi_offset;
1455 ret = -E_NO_AFHI;
1456 if (!objs[AFTCOL_AFHI].size) /* "impossible" */
1457 goto out;
1458 objs[AFTCOL_CHUNKS].data = buf + chunks_offset;
1459 objs[AFTCOL_CHUNKS].size = query->size - chunks_offset;
1460 if (pb && !hs) { /* update pb's hash */
1461 char old_asc[2 * HASH_SIZE + 1];
1462 HASH_TYPE *old_hash;
1463 ret = get_hash_of_row(pb, &old_hash);
1464 if (ret < 0)
1465 goto out;
1466 hash_to_asc(old_hash, old_asc);
1467 if (flags & ADD_FLAG_VERBOSE)
1468 para_printf(&msg, "file change: %s -> %s\n",
1469 old_asc, asc);
1470 ret = osl_update_object(audio_file_table, pb, AFTCOL_HASH,
1471 &objs[AFTCOL_HASH]);
1472 if (ret < 0)
1473 goto out;
1474 }
1475 if (hs || pb) { /* (hs != NULL and pb != NULL) implies hs == pb */
1476 struct osl_row *row = pb? pb : hs;
1477 /* update afhi and chunk_table */
1478 if (flags & ADD_FLAG_VERBOSE)
1479 para_printf(&msg, "updating afhi and chunk table\n");
1480 ret = osl_update_object(audio_file_table, row, AFTCOL_AFHI,
1481 &objs[AFTCOL_AFHI]);
1482 if (ret < 0)
1483 goto out;
1484 ret = osl_update_object(audio_file_table, row, AFTCOL_CHUNKS,
1485 &objs[AFTCOL_CHUNKS]);
1486 if (ret < 0)
1487 goto out;
1488 afs_event(AFHI_CHANGE, &msg, row);
1489 goto out;
1490 }
1491 /* new entry, use default afsi */
1492 if (flags & ADD_FLAG_VERBOSE)
1493 para_printf(&msg, "new file\n");
1494 default_afsi.last_played = time(NULL) - 365 * 24 * 60 * 60;
1495 default_afsi.audio_format_id = read_u8(buf + AFTROW_AUDIO_FORMAT_OFFSET);
1496
1497 objs[AFTCOL_AFSI].data = &afsi_buf;
1498 objs[AFTCOL_AFSI].size = AFSI_SIZE;
1499 save_afsi(&default_afsi, &objs[AFTCOL_AFSI]);
1500 ret = osl_add_and_get_row(audio_file_table, objs, &aft_row);
1501 out:
1502 if (ret < 0)
1503 para_printf(&msg, "%s\n", PARA_STRERROR(-ret));
1504 if (!msg.buf)
1505 return 0;
1506 result->data = msg.buf;
1507 result->size = msg.size;
1508 afs_event(AUDIO_FILE_ADD, &msg, aft_row);
1509 return 1;
1510 }
1511
1512 struct private_add_data {
1513 int fd;
1514 uint32_t flags;
1515 };
1516
1517 static int path_brother_callback(const struct osl_object *query,
1518 struct osl_object *result)
1519 {
1520 char *path = query->data;
1521 struct osl_row *path_brother;
1522 int ret = aft_get_row_of_path(path, &path_brother);
1523 if (ret < 0)
1524 return ret;
1525 result->data = para_malloc(sizeof(path_brother));
1526 result->size = sizeof(path_brother);
1527 *(struct osl_row **)(result->data) = path_brother;
1528 return 1;
1529 }
1530
1531 static int hash_sister_callback(const struct osl_object *query,
1532 struct osl_object *result)
1533 {
1534 HASH_TYPE *hash = query->data;
1535 struct osl_row *hash_sister;
1536
1537 hash_sister = find_hash_sister(hash);
1538 if (!hash_sister)
1539 return -E_RB_KEY_NOT_FOUND;
1540 result->data = para_malloc(sizeof(hash_sister));
1541 result->size = sizeof(hash_sister);
1542 *(struct osl_row **)(result->data) = hash_sister;
1543 return 1;
1544 }
1545
1546 static int add_one_audio_file(const char *path, const void *private_data)
1547 {
1548 int ret, ret2;
1549 uint8_t format_num = -1;
1550 const struct private_add_data *pad = private_data;
1551 struct audio_format_info afhi, *afhi_ptr = NULL;
1552 struct osl_row *pb = NULL, *hs = NULL; /* path brother/hash sister */
1553 struct osl_object map, obj = {.data = NULL}, query, result;
1554 HASH_TYPE hash[HASH_SIZE];
1555
1556 afhi.header_offset = 0;
1557 afhi.header_len = 0;
1558 ret = guess_audio_format(path);
1559 if (ret < 0 && !(pad->flags & ADD_FLAG_ALL))
1560 goto out_free;
1561 query.data = (char *)path;
1562 query.size = strlen(path) + 1;
1563 ret = send_callback_request(path_brother_callback, &query, &result);
1564 if (ret < 0 && ret != -E_RB_KEY_NOT_FOUND)
1565 goto out_free;
1566 if (ret >= 0) {
1567 pb = *(struct osl_row **)result.data;
1568 free(result.data);
1569 }
1570 ret = 1;
1571 if (pb && (pad->flags & ADD_FLAG_LAZY)) { /* lazy is really cheap */
1572 if (pad->flags & ADD_FLAG_VERBOSE)
1573 ret = send_va_buffer(pad->fd, "lazy-ignore: %s\n", path);
1574 goto out_free;
1575 }
1576 /* We still want to add this file. Compute its hash. */
1577 ret = mmap_full_file(path, O_RDONLY, &map.data, &map.size, NULL);
1578 if (ret < 0)
1579 goto out_free;
1580 hash_function(map.data, map.size, hash);
1581
1582 /* Check whether database contains file with the same hash. */
1583 query.data = hash;
1584 query.size = HASH_SIZE;
1585 ret = send_callback_request(hash_sister_callback, &query, &result);
1586 if (ret < 0 && ret != -E_RB_KEY_NOT_FOUND)
1587 goto out_free;
1588 if (ret >= 0) {
1589 hs = *(struct osl_row **)result.data;
1590 free(result.data);
1591 }
1592 /* Return success if we already know this file. */
1593 ret = 1;
1594 if (pb && hs && hs == pb && (!(pad->flags & ADD_FLAG_FORCE))) {
1595 if (pad->flags & ADD_FLAG_VERBOSE)
1596 ret = send_va_buffer(pad->fd,
1597 "%s exists, not forcing update\n", path);
1598 goto out_unmap;
1599 }
1600 /*
1601 * we won't recalculate the audio format info and the chunk table if
1602 * there is a hash sister unless in FORCE mode.
1603 */
1604 if (!hs || (pad->flags & ADD_FLAG_FORCE)) {
1605 ret = compute_afhi(path, map.data, map.size, &afhi);
1606 if (ret < 0)
1607 goto out_unmap;
1608 format_num = ret;
1609 afhi_ptr = &afhi;
1610 }
1611 if (pad->flags & ADD_FLAG_VERBOSE) {
1612 ret = send_va_buffer(pad->fd, "adding %s\n", path);
1613 if (ret < 0)
1614 goto out_unmap;
1615 }
1616 munmap(map.data, map.size);
1617 save_audio_file_info(hash, path, afhi_ptr, pad->flags, format_num, &obj);
1618 /* Ask afs to consider this entry for adding. */
1619 ret = send_callback_request(com_add_callback, &obj, &result);
1620 if (result.data && result.size) {
1621 ret2 = send_va_buffer(pad->fd, "%s", (char *)result.data);
1622 free(result.data);
1623 if (ret >= 0 && ret2 < 0)
1624 ret = ret2;
1625 }
1626 goto out_free;
1627
1628 out_unmap:
1629 munmap(map.data, map.size);
1630 out_free:
1631 if (ret < 0 && ret != -E_SEND)
1632 send_va_buffer(pad->fd, "failed to add %s (%s)\n", path,
1633 PARA_STRERROR(-ret));
1634 free(obj.data);
1635 if (afhi_ptr)
1636 free(afhi_ptr->chunk_table);
1637 /* it's not an error if not all files could be added */
1638 return ret == -E_SEND? ret : 1;
1639 }
1640
1641 int com_add(int fd, int argc, char * const * const argv)
1642 {
1643 int i, ret;
1644 struct private_add_data pad = {.fd = fd, .flags = 0};
1645 struct stat statbuf;
1646
1647 for (i = 1; i < argc; i++) {
1648 const char *arg = argv[i];
1649 if (arg[0] != '-')
1650 break;
1651 if (!strcmp(arg, "--")) {
1652 i++;
1653 break;
1654 }
1655 if (!strcmp(arg, "-a")) {
1656 pad.flags |= ADD_FLAG_ALL;
1657 continue;
1658 }
1659 if (!strcmp(arg, "-l")) {
1660 pad.flags |= ADD_FLAG_LAZY;
1661 continue;
1662 }
1663 if (!strcmp(arg, "-f")) {
1664 pad.flags |= ADD_FLAG_FORCE;
1665 continue;
1666 }
1667 if (!strcmp(arg, "-v")) {
1668 pad.flags |= ADD_FLAG_VERBOSE;
1669 continue;
1670 }
1671 }
1672 if (argc <= i)
1673 return -E_AFT_SYNTAX;
1674 for (; i < argc; i++) {
1675 char *path;
1676 ret = verify_path(argv[i], &path);
1677 if (ret < 0) {
1678 ret = send_va_buffer(fd, "%s: %s\n", argv[i], PARA_STRERROR(-ret));
1679 if (ret < 0)
1680 return ret;
1681 continue;
1682 }
1683 ret = stat(path, &statbuf);
1684 if (ret < 0) {
1685 ret = send_va_buffer(fd, "failed to stat %s (%s)\n", path,
1686 strerror(errno));
1687 free(path);
1688 if (ret < 0)
1689 return ret;
1690 continue;
1691 }
1692 if (S_ISDIR(statbuf.st_mode))
1693 ret = for_each_file_in_dir(path, add_one_audio_file,
1694 &pad);
1695 else
1696 ret = add_one_audio_file(path, &pad);
1697 if (ret < 0) {
1698 send_va_buffer(fd, "%s: %s\n", path, PARA_STRERROR(-ret));
1699 free(path);
1700 return ret;
1701 }
1702 free(path);
1703 }
1704 return 1;
1705
1706 }
1707
1708 /**
1709 * Flags used by the touch command.
1710 *
1711 * \sa com_touch().
1712 */
1713 enum touch_flags {
1714 /** Whether the \p FNM_PATHNAME flag should be passed to fnmatch(). */
1715 TOUCH_FLAG_FNM_PATHNAME = 1,
1716 /** Activates verbose mode. */
1717 TOUCH_FLAG_VERBOSE = 2
1718 };
1719
1720 struct com_touch_options {
1721 int32_t num_played;
1722 int64_t last_played;
1723 int32_t lyrics_id;
1724 int32_t image_id;
1725 unsigned flags;
1726 };
1727
1728 struct touch_action_data {
1729 struct com_touch_options *cto;
1730 struct para_buffer pb;
1731 };
1732
1733 static int touch_audio_file(__a_unused struct osl_table *table,
1734 struct osl_row *row, const char *name, void *data)
1735 {
1736 struct touch_action_data *tad = data;
1737 struct osl_object obj;
1738 struct afs_info old_afsi, new_afsi;
1739 int ret, no_options = tad->cto->num_played < 0 && tad->cto->last_played < 0 &&
1740 tad->cto->lyrics_id < 0 && tad->cto->image_id < 0;
1741 struct afsi_change_event_data aced;
1742
1743 ret = get_afsi_object_of_row(row, &obj);
1744 if (ret < 0) {
1745 para_printf(&tad->pb, "%s: %s\n", name, PARA_STRERROR(-ret));
1746 return 1;
1747 }
1748 ret = load_afsi(&old_afsi, &obj);
1749 if (ret < 0) {
1750 para_printf(&tad->pb, "%s: %s\n", name, PARA_STRERROR(-ret));
1751 return 1;
1752 }
1753 new_afsi = old_afsi;
1754 if (no_options) {
1755 new_afsi.num_played++;
1756 new_afsi.last_played = time(NULL);
1757 if (tad->cto->flags & TOUCH_FLAG_VERBOSE)
1758 para_printf(&tad->pb, "%s: num_played = %u, "
1759 "last_played = now()\n", name,
1760 new_afsi.num_played);
1761 } else {
1762 if (tad->cto->flags & TOUCH_FLAG_VERBOSE)
1763 para_printf(&tad->pb, "touching %s\n", name);
1764 if (tad->cto->lyrics_id >= 0)
1765 new_afsi.lyrics_id = tad->cto->lyrics_id;
1766 if (tad->cto->image_id >= 0)
1767 new_afsi.image_id = tad->cto->image_id;
1768 if (tad->cto->num_played >= 0)
1769 new_afsi.num_played = tad->cto->num_played;
1770 if (tad->cto->last_played >= 0)
1771 new_afsi.last_played = tad->cto->last_played;
1772 }
1773 save_afsi(&new_afsi, &obj); /* in-place update */
1774 aced.aft_row = row;
1775 aced.old_afsi = &old_afsi;
1776 afs_event(AFSI_CHANGE, &tad->pb, &aced);
1777 return 1;
1778 }
1779
1780 static int com_touch_callback(const struct osl_object *query,
1781 struct osl_object *result)
1782 {
1783 struct touch_action_data tad = {.cto = query->data};
1784 int ret;
1785 struct pattern_match_data pmd = {
1786 .table = audio_file_table,
1787 .loop_col_num = AFTCOL_HASH,
1788 .match_col_num = AFTCOL_PATH,
1789 .patterns = {.data = (char *)query->data + sizeof(*tad.cto),
1790 .size = query->size - sizeof(*tad.cto)},
1791 .data = &tad,
1792 .action = touch_audio_file
1793 };
1794 if (tad.cto->flags & TOUCH_FLAG_FNM_PATHNAME)
1795 pmd.fnmatch_flags |= FNM_PATHNAME;
1796 ret = for_each_matching_row(&pmd);
1797 if (ret < 0)
1798 para_printf(&tad.pb, "%s\n", PARA_STRERROR(-ret));
1799 if (tad.pb.buf) {
1800 result->data = tad.pb.buf;
1801 result->size = tad.pb.size;
1802 return 1;
1803 }
1804 return ret < 0? ret : 0;
1805 }
1806
1807 int com_touch(int fd, int argc, char * const * const argv)
1808 {
1809 struct com_touch_options cto = {
1810 .num_played = -1,
1811 .last_played = -1,
1812 .lyrics_id = -1,
1813 .image_id = -1
1814 };
1815 struct osl_object query = {.data = &cto, .size = sizeof(cto)},
1816 result;
1817 int i, ret;
1818
1819
1820 for (i = 1; i < argc; i++) {
1821 const char *arg = argv[i];
1822 if (arg[0] != '-')
1823 break;
1824 if (!strcmp(arg, "--")) {
1825 i++;
1826 break;
1827 }
1828 if (!strncmp(arg, "-n", 2)) {
1829 ret = para_atoi32(arg + 2, &cto.num_played);
1830 if (ret < 0)
1831 return ret;
1832 continue;
1833 }
1834 if (!strncmp(arg, "-l", 2)) {
1835 ret = para_atoi64(arg + 2, &cto.last_played);
1836 if (ret < 0)
1837 return ret;
1838 continue;
1839 }
1840 if (!strncmp(arg, "-y", 2)) {
1841 ret = para_atoi32(arg + 2, &cto.lyrics_id);
1842 if (ret < 0)
1843 return ret;
1844 continue;
1845 }
1846 if (!strncmp(arg, "-i", 2)) {
1847 ret = para_atoi32(arg + 2, &cto.image_id);
1848 if (ret < 0)
1849 return ret;
1850 continue;
1851 }
1852 if (!strcmp(arg, "-p")) {
1853 cto.flags |= TOUCH_FLAG_FNM_PATHNAME;
1854 continue;
1855 }
1856 if (!strcmp(arg, "-v")) {
1857 cto.flags |= TOUCH_FLAG_VERBOSE;
1858 continue;
1859 }
1860 break; /* non-option starting with dash */
1861 }
1862 if (i >= argc)
1863 return -E_AFT_SYNTAX;
1864 ret = send_option_arg_callback_request(&query, argc - i,
1865 argv + i, com_touch_callback, &result);
1866 if (ret > 0) {
1867 send_buffer(fd, (char *)result.data);
1868 free(result.data);
1869 } else
1870 send_va_buffer(fd, "%s\n", PARA_STRERROR(-ret));
1871 return ret;
1872 }
1873
1874 enum rm_flags {
1875 RM_FLAG_VERBOSE = 1,
1876 RM_FLAG_FORCE = 2,
1877 RM_FLAG_FNM_PATHNAME = 4
1878 };
1879
1880 struct com_rm_data {
1881 uint32_t flags;
1882 struct para_buffer pb;
1883 unsigned num_removed;
1884 };
1885
1886 static int remove_audio_file(__a_unused struct osl_table *table,
1887 struct osl_row *row, const char *name, void *data)
1888 {
1889 struct com_rm_data *crd = data;
1890 int ret;
1891
1892 if (crd->flags & RM_FLAG_VERBOSE)
1893 para_printf(&crd->pb, "removing %s\n", name);
1894 afs_event(AUDIO_FILE_REMOVE, &crd->pb, row);
1895 ret = osl_del_row(audio_file_table, row);
1896 if (ret < 0)
1897 para_printf(&crd->pb, "%s: %s\n", name, PARA_STRERROR(-ret));
1898 else
1899 crd->num_removed++;
1900 return 1;
1901 }
1902
1903 static int com_rm_callback(const struct osl_object *query,
1904 __a_unused struct osl_object *result)
1905 {
1906 struct com_rm_data crd = {.flags = *(uint32_t *)query->data};
1907 int ret;
1908 struct pattern_match_data pmd = {
1909 .table = audio_file_table,
1910 .loop_col_num = AFTCOL_HASH,
1911 .match_col_num = AFTCOL_PATH,
1912 .patterns = {.data = (char *)query->data + sizeof(uint32_t),
1913 .size = query->size - sizeof(uint32_t)},
1914 .data = &crd,
1915 .action = remove_audio_file
1916 };
1917 if (crd.flags & RM_FLAG_FNM_PATHNAME)
1918 pmd.fnmatch_flags |= FNM_PATHNAME;
1919 ret = for_each_matching_row(&pmd);
1920 if (ret < 0)
1921 para_printf(&crd.pb, "%s\n", PARA_STRERROR(-ret));
1922 if (!crd.num_removed && !(crd.flags & RM_FLAG_FORCE))
1923 para_printf(&crd.pb, "no matches -- nothing removed\n");
1924 else {
1925 if (crd.flags & RM_FLAG_VERBOSE)
1926 para_printf(&crd.pb, "removed %u files\n", crd.num_removed);
1927 }
1928 if (crd.pb.buf) {
1929 result->data = crd.pb.buf;
1930 result->size = crd.pb.size;
1931 return 1;
1932 }
1933 return ret < 0? ret : 0;
1934 }
1935
1936 /* TODO options: -r (recursive) */
1937 int com_afs_rm(int fd, int argc, char * const * const argv)
1938 {
1939 uint32_t flags = 0;
1940 struct osl_object query = {.data = &flags, .size = sizeof(flags)},
1941 result;
1942 int i, ret;
1943
1944 for (i = 1; i < argc; i++) {
1945 const char *arg = argv[i];
1946 if (arg[0] != '-')
1947 break;
1948 if (!strcmp(arg, "--")) {
1949 i++;
1950 break;
1951 }
1952 if (!strcmp(arg, "-f")) {
1953 flags |= RM_FLAG_FORCE;
1954 continue;
1955 }
1956 if (!strcmp(arg, "-p")) {
1957 flags |= RM_FLAG_FNM_PATHNAME;
1958 continue;
1959 }
1960 if (!strcmp(arg, "-v")) {
1961 flags |= RM_FLAG_VERBOSE;
1962 continue;
1963 }
1964 break;
1965 }
1966 if (i >= argc)
1967 return -E_AFT_SYNTAX;
1968 ret = send_option_arg_callback_request(&query, argc - i, argv + i,
1969 com_rm_callback, &result);
1970 if (ret > 0) {
1971 send_buffer(fd, (char *)result.data);
1972 free(result.data);
1973 } else if (ret < 0)
1974 send_va_buffer(fd, "%s\n", PARA_STRERROR(-ret));
1975 return ret;
1976 }
1977
1978 /**
1979 * Flags used by the cpsi command.
1980 *
1981 * \sa com_cpsi().
1982 */
1983 enum cpsi_flags {
1984 /** Whether the lyrics id should be copied. */
1985 CPSI_FLAG_COPY_LYRICS_ID = 1,
1986 /** Whether the image id should be copied. */
1987 CPSI_FLAG_COPY_IMAGE_ID = 2,
1988 /** Whether the lastplayed time should be copied. */
1989 CPSI_FLAG_COPY_LASTPLAYED = 4,
1990 /** Whether the numplayed count should be copied. */
1991 CPSI_FLAG_COPY_NUMPLAYED = 8,
1992 /** Whether the attributes should be copied. */
1993 CPSI_FLAG_COPY_ATTRIBUTES = 16,
1994 /** Activates verbose mode. */
1995 CPSI_FLAG_VERBOSE = 32,
1996 };
1997
1998 struct cpsi_action_data {
1999 unsigned flags;
2000 unsigned num_copied;
2001 struct para_buffer pb;
2002 struct afs_info source_afsi;
2003 };
2004
2005 static int copy_selector_info(__a_unused struct osl_table *table,
2006 struct osl_row *row, const char *name, void *data)
2007 {
2008 struct cpsi_action_data *cad = data;
2009 struct osl_object target_afsi_obj;
2010 int ret;
2011 struct afs_info old_afsi, target_afsi;
2012 struct afsi_change_event_data aced;
2013
2014 ret = get_afsi_object_of_row(row, &target_afsi_obj);
2015 if (ret < 0)
2016 return ret;
2017 load_afsi(&target_afsi, &target_afsi_obj);
2018 old_afsi = target_afsi;
2019 if (cad->flags & CPSI_FLAG_COPY_LYRICS_ID)
2020 target_afsi.lyrics_id = cad->source_afsi.lyrics_id;
2021 if (cad->flags & CPSI_FLAG_COPY_IMAGE_ID)
2022 target_afsi.image_id = cad->source_afsi.image_id;
2023 if (cad->flags & CPSI_FLAG_COPY_LASTPLAYED)
2024 target_afsi.last_played = cad->source_afsi.last_played;
2025 if (cad->flags & CPSI_FLAG_COPY_NUMPLAYED)
2026 target_afsi.num_played = cad->source_afsi.num_played;
2027 if (cad->flags & CPSI_FLAG_COPY_ATTRIBUTES)
2028 target_afsi.attributes = cad->source_afsi.attributes;
2029 save_afsi(&target_afsi, &target_afsi_obj); /* in-place update */
2030 cad->num_copied++;
2031 if (cad->flags & CPSI_FLAG_VERBOSE)
2032 para_printf(&cad->pb, "copied afsi to %s\n", name);
2033 aced.aft_row = row;
2034 aced.old_afsi = &old_afsi;
2035 afs_event(AFSI_CHANGE, &cad->pb, &aced);
2036 return 1;
2037 }
2038
2039 static int com_cpsi_callback(const struct osl_object *query,
2040 struct osl_object *result)
2041 {
2042 struct cpsi_action_data cad = {.flags = *(unsigned *)query->data};
2043 int ret;
2044 char *source_path = (char *)query->data + sizeof(cad.flags);
2045
2046 ret = get_afsi_of_path(source_path, &cad.source_afsi);
2047 if (ret < 0)
2048 goto out;
2049 struct pattern_match_data pmd = {
2050 .table = audio_file_table,
2051 .loop_col_num = AFTCOL_HASH,
2052 .match_col_num = AFTCOL_PATH,
2053 .patterns = {.data = source_path + strlen(source_path) + 1,
2054 .size = query->size - sizeof(cad.flags)
2055 - strlen(source_path) - 1},
2056 .data = &cad,
2057 .action = copy_selector_info
2058 };
2059 ret = for_each_matching_row(&pmd);
2060 out:
2061 if (ret < 0)
2062 para_printf(&cad.pb, "%s\n", PARA_STRERROR(-ret));
2063 if (cad.flags & CPSI_FLAG_VERBOSE) {
2064 if (cad.num_copied)
2065 para_printf(&cad.pb, "copied requested afsi from %s "
2066 "to %u files\n",
2067 source_path, cad.num_copied);
2068 else
2069 para_printf(&cad.pb, "nothing copied\n");
2070 }
2071 if (cad.pb.buf) {
2072 result->data = cad.pb.buf;
2073 result->size = cad.pb.size;
2074 return 1;
2075 }
2076 return ret < 0? ret : 0;
2077 }
2078
2079 int com_cpsi(int fd, int argc, char * const * const argv)
2080 {
2081 unsigned flags = 0;
2082 int i, ret;
2083 struct osl_object options = {.data = &flags, .size = sizeof(flags)},
2084 result;
2085
2086 for (i = 1; i < argc; i++) {
2087 const char *arg = argv[i];
2088 if (arg[0] != '-')
2089 break;
2090 if (!strcmp(arg, "--")) {
2091 i++;
2092 break;
2093 }
2094 if (!strcmp(arg, "-y")) {
2095 flags |= CPSI_FLAG_COPY_LYRICS_ID;
2096 continue;
2097 }
2098 if (!strcmp(arg, "-i")) {
2099 flags |= CPSI_FLAG_COPY_IMAGE_ID;
2100 continue;
2101 }
2102 if (!strcmp(arg, "-l")) {
2103 flags |= CPSI_FLAG_COPY_LASTPLAYED;
2104 continue;
2105 }
2106 if (!strcmp(arg, "-n")) {
2107 flags |= CPSI_FLAG_COPY_NUMPLAYED;
2108 continue;
2109 }
2110 if (!strcmp(arg, "-a")) {
2111 flags |= CPSI_FLAG_COPY_ATTRIBUTES;
2112 continue;
2113 }
2114 if (!strcmp(arg, "-v")) {
2115 flags |= CPSI_FLAG_VERBOSE;
2116 continue;
2117 }
2118 break;
2119 }
2120 if (i + 1 >= argc) /* need at least souce file and pattern */
2121 return -E_AFT_SYNTAX;
2122 if (!(flags & ~CPSI_FLAG_VERBOSE)) /* no copy flags given */
2123 flags = ~(unsigned)CPSI_FLAG_VERBOSE | flags;
2124 ret = send_option_arg_callback_request(&options, argc - i, argv + i,
2125 com_cpsi_callback, &result);
2126 if (ret > 0) {
2127 send_buffer(fd, (char *)result.data);
2128 free(result.data);
2129 } else
2130 send_va_buffer(fd, "%s\n", PARA_STRERROR(-ret));
2131 return ret;
2132 }
2133
2134 /* TODO: optionally fix problems by removing offending rows */
2135 static int check_audio_file(struct osl_row *row, void *data)
2136 {
2137 char *path;
2138 struct para_buffer *pb = data;
2139 struct stat statbuf;
2140 int ret = get_audio_file_path_of_row(row, &path);
2141 struct afs_info afsi;
2142 char *blob_name;
2143
2144 if (ret < 0) {
2145 para_printf(pb, "%s\n", PARA_STRERROR(-ret));
2146 return 1;
2147 }
2148 if (stat(path, &statbuf) < 0)
2149 para_printf(pb, "%s: stat error (%s)\n", path, strerror(errno));
2150 else {
2151 if (!S_ISREG(statbuf.st_mode))
2152 para_printf(pb, "%s: not a regular file\n", path);
2153 }
2154 ret = get_afsi_of_row(row, &afsi);
2155 if (ret < 0) {
2156 para_printf(pb, "%s: %s\n", path, PARA_STRERROR(-ret));
2157 return 1;
2158 }
2159 ret = lyr_get_name_by_id(afsi.lyrics_id, &blob_name);
2160 if (ret < 0)
2161 para_printf(pb, "%s lyrics id %u: %s\n", path, afsi.lyrics_id,
2162 PARA_STRERROR(-ret));
2163 ret = img_get_name_by_id(afsi.image_id, &blob_name);
2164 if (ret < 0)
2165 para_printf(pb, "%s image id %u: %s\n", path, afsi.image_id,
2166 PARA_STRERROR(-ret));
2167 return 1;
2168 }
2169
2170 /**
2171 * Check the audio file table for inconsistencies.
2172 *
2173 * \param query Unused.
2174 * \param result Contains message string upon return.
2175 *
2176 * This function always succeeds.
2177 *
2178 * \sa com_check().
2179 */
2180 int aft_check_callback(__a_unused const struct osl_object *query, struct osl_object *result)
2181 {
2182 struct para_buffer pb = {.buf = NULL};
2183
2184 para_printf(&pb, "checking audio file table...\n");
2185 audio_file_loop(&pb, check_audio_file);
2186 result->data = pb.buf;
2187 result->size = pb.size;
2188 return 1;
2189
2190 }
2191
2192 /**
2193 * Close the audio file table.
2194 *
2195 * \param flags Ususal flags that are passed to osl_close_table().
2196 *
2197 * \sa osl_close_table().
2198 */
2199 static void aft_close(void)
2200 {
2201 osl_close_table(audio_file_table, OSL_MARK_CLEAN);
2202 audio_file_table = NULL;
2203 }
2204
2205 /**
2206 * Open the audio file table.
2207 *
2208 * \param dir The database directory.
2209 *
2210 * \return Standard.
2211 *
2212 * \sa osl_open_table().
2213 */
2214 static int aft_open(const char *dir)
2215 {
2216 int ret;
2217
2218 audio_file_table_desc.dir = dir;
2219 ret = osl_open_table(&audio_file_table_desc, &audio_file_table);
2220 if (ret >= 0) {
2221 unsigned num;
2222 osl_get_num_rows(audio_file_table, &num);
2223 PARA_INFO_LOG("audio file table contains %d files\n", num);
2224 return ret;
2225 }
2226 PARA_INFO_LOG("failed to open audio file table\n");
2227 audio_file_table = NULL;
2228 if (ret >= 0 || is_errno(-ret, ENOENT))
2229 return 1;
2230 return ret;
2231 }
2232
2233 static int aft_create(const char *dir)
2234 {
2235 audio_file_table_desc.dir = dir;
2236 return osl_create_table(&audio_file_table_desc);
2237 }
2238
2239 static int clear_attribute(struct osl_row *row, void *data)
2240 {
2241 struct rmatt_event_data *red = data;
2242 struct afs_info afsi;
2243 struct osl_object obj;
2244 int ret = get_afsi_object_of_row(row, &obj);
2245 uint64_t mask = ~(1ULL << red->bitnum);
2246
2247 if (ret < 0)
2248 return ret;
2249 ret = load_afsi(&afsi, &obj);
2250 if (ret < 0)
2251 return ret;
2252 afsi.attributes &= mask;
2253 save_afsi(&afsi, &obj);
2254 return 1;
2255 }
2256
2257 static int aft_event_handler(enum afs_events event, struct para_buffer *pb,
2258 void *data)
2259 {
2260 switch(event) {
2261 case ATTRIBUTE_REMOVE: {
2262 const struct rmatt_event_data *red = data;
2263 para_printf(pb, "clearing attribute %s (bit %u) from all "
2264 "entries in the audio file table\n", red->name,
2265 red->bitnum);
2266 return audio_file_loop(data, clear_attribute);
2267 }
2268 default:
2269 return 1;
2270 }
2271 }
2272
2273 void aft_init(struct afs_table *t)
2274 {
2275 t->name = audio_file_table_desc.name;
2276 t->open = aft_open;
2277 t->close = aft_close;
2278 t->create = aft_create;
2279 t->event_handler = aft_event_handler;
2280 }