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