Don't compute attributes string twice.
[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 from the ls command handler to its callback function. */
100 struct ls_options {
101 /** The given command line flags. */
102 unsigned flags;
103 /** The sorting method given at the command line. */
104 enum ls_sorting_method sorting;
105 /** The given listing mode (short, long, verbose, mbox). */
106 enum ls_listing_mode mode;
107 /** The arguments passed to the ls command. */
108 char **patterns;
109 /** Number of non-option arguments. */
110 int num_patterns;
111 /** Used for long listing mode to align the output fields. */
112 struct ls_widths widths;
113 /** Size of the \a data array. */
114 uint32_t array_size;
115 /** Number of used entries in the data array. */
116 uint32_t num_matching_paths;
117 /** Array of matching entries. */
118 struct ls_data *data;
119 /** Used to sort the array. */
120 struct ls_data **data_ptr;
121 };
122
123 /**
124 * Describes the layout of the mmapped-afs info struct.
125 *
126 * \sa struct afs_info.
127 */
128 enum afsi_offsets {
129 /** Where .last_played is stored. */
130 AFSI_LAST_PLAYED_OFFSET = 0,
131 /** Storage position of the attributes bitmap. */
132 AFSI_ATTRIBUTES_OFFSET = 8,
133 /** Storage position of the .num_played field. */
134 AFSI_NUM_PLAYED_OFFSET = 16,
135 /** Storage position of the .image_id field. */
136 AFSI_IMAGE_ID_OFFSET = 20,
137 /** Storage position of the .lyrics_id field. */
138 AFSI_LYRICS_ID_OFFSET = 24,
139 /** Storage position of the .audio_format_id field. */
140 AFSI_AUDIO_FORMAT_ID_OFFSET = 28,
141 /** 3 bytes reserved space for future usage. */
142 AFSI_AUDIO_FORMAT_UNUSED_OFFSET = 29,
143 /** On-disk storage space needed. */
144 AFSI_SIZE = 32
145 };
146
147 /**
148 * Convert a struct afs_info to an osl object.
149 *
150 * \param afsi Pointer to the audio file info to be converted.
151 * \param obj Result pointer.
152 *
153 * \sa load_afsi().
154 */
155 void save_afsi(struct afs_info *afsi, struct osl_object *obj)
156 {
157 char *buf = obj->data;
158
159 write_u64(buf + AFSI_LAST_PLAYED_OFFSET, afsi->last_played);
160 write_u64(buf + AFSI_ATTRIBUTES_OFFSET, afsi->attributes);
161 write_u32(buf + AFSI_NUM_PLAYED_OFFSET, afsi->num_played);
162 write_u32(buf + AFSI_IMAGE_ID_OFFSET, afsi->image_id);
163 write_u32(buf + AFSI_LYRICS_ID_OFFSET, afsi->lyrics_id);
164 write_u8(buf + AFSI_AUDIO_FORMAT_ID_OFFSET,
165 afsi->audio_format_id);
166 memset(buf + AFSI_AUDIO_FORMAT_UNUSED_OFFSET, 0, 3);
167 }
168
169 /**
170 * Get the audio file selector info struct stored in an osl object.
171 *
172 * \param afsi Points to the audio_file info structure to be filled in.
173 * \param obj The osl object holding the data.
174 *
175 * \return Positive on success, negative on errors. Possible errors: \p E_BAD_AFS.
176 *
177 * \sa save_afsi().
178 */
179 int load_afsi(struct afs_info *afsi, struct osl_object *obj)
180 {
181 char *buf = obj->data;
182 if (obj->size < AFSI_SIZE)
183 return -E_BAD_AFSI;
184 afsi->last_played = read_u64(buf + AFSI_LAST_PLAYED_OFFSET);
185 afsi->attributes = read_u64(buf + AFSI_ATTRIBUTES_OFFSET);
186 afsi->num_played = read_u32(buf + AFSI_NUM_PLAYED_OFFSET);
187 afsi->image_id = read_u32(buf + AFSI_IMAGE_ID_OFFSET);
188 afsi->lyrics_id = read_u32(buf + AFSI_LYRICS_ID_OFFSET);
189 afsi->audio_format_id = read_u8(buf +
190 AFSI_AUDIO_FORMAT_ID_OFFSET);
191 return 1;
192 }
193
194 /** The columns of the audio file table. */
195 enum audio_file_table_columns {
196 /** The hash on the content of the audio file. */
197 AFTCOL_HASH,
198 /** The full path in the filesystem. */
199 AFTCOL_PATH,
200 /** The audio file selector info. */
201 AFTCOL_AFSI,
202 /** The audio format handler info. */
203 AFTCOL_AFHI,
204 /** The chunk table info and the chunk table of the audio file. */
205 AFTCOL_CHUNKS,
206 /** The number of columns of this table. */
207 NUM_AFT_COLUMNS
208 };
209
210 static struct osl_column_description aft_cols[] = {
211 [AFTCOL_HASH] = {
212 .storage_type = OSL_MAPPED_STORAGE,
213 .storage_flags = OSL_RBTREE | OSL_FIXED_SIZE | OSL_UNIQUE,
214 .name = "hash",
215 .compare_function = osl_hash_compare,
216 .data_size = HASH_SIZE
217 },
218 [AFTCOL_PATH] = {
219 .storage_type = OSL_MAPPED_STORAGE,
220 .storage_flags = OSL_RBTREE | OSL_UNIQUE,
221 .name = "path",
222 .compare_function = string_compare,
223 },
224 [AFTCOL_AFSI] = {
225 .storage_type = OSL_MAPPED_STORAGE,
226 .storage_flags = OSL_FIXED_SIZE,
227 .name = "afs_info",
228 .data_size = AFSI_SIZE
229 },
230 [AFTCOL_AFHI] = {
231 .storage_type = OSL_MAPPED_STORAGE,
232 .name = "afh_info",
233 },
234 [AFTCOL_CHUNKS] = {
235 .storage_type = OSL_DISK_STORAGE,
236 .name = "chunks",
237 }
238 };
239
240 static struct osl_table_description audio_file_table_desc = {
241 .name = "audio_files",
242 .num_columns = NUM_AFT_COLUMNS,
243 .flags = OSL_LARGE_TABLE,
244 .column_descriptions = aft_cols
245 };
246
247 /* We don't want * dot or dot-dot anywhere. */
248 static int verify_dotfile(const char *rest)
249 {
250 /*
251 * The first character was '.', but that has already been discarded, we
252 * now test the rest.
253 */
254 switch (*rest) {
255 case '\0': case '/': /* /foo/. and /foo/./bar are not ok */
256 return -1;
257 case '.': /* path start with /foo/.. */
258 if (rest[1] == '\0' || rest[1] == '/')
259 return -1; /* /foo/.. or /foo/../bar are not ok */
260 /* /foo/..bar is ok */
261 }
262 return 1;
263 }
264
265 /*
266 * We fundamentally don't like some paths: We don't want double slashes or
267 * slashes at the end that can make pathnames ambiguous.
268 */
269 static int verify_path(const char *orig_path, char **resolved_path)
270 {
271 char c;
272 size_t len;
273 char *path;
274
275 if (*orig_path != '/') /* we only accept absolute paths */
276 return -E_BAD_PATH;
277 len = strlen(orig_path);
278 *resolved_path = para_strdup(orig_path);
279 path = *resolved_path;
280 while (len > 1 && path[--len] == '/')
281 path[len] = '\0'; /* remove slash at the end */
282 c = *path++;
283 while (c) {
284 if (c == '/') {
285 c = *path++;
286 switch (c) {
287 case '/': /* double slash */
288 goto bad_path;
289 case '.':
290 if (verify_dotfile(path) < 0)
291 goto bad_path;
292 default:
293 continue;
294 }
295 }
296 c = *path++;
297 }
298 return 1;
299 bad_path:
300 free(*resolved_path);
301 return -E_BAD_PATH;
302 }
303
304 /** The on-disk layout of a afhi struct. */
305 enum afhi_offsets {
306 /** Where the number of seconds is stored. */
307 AFHI_SECONDS_TOTAL_OFFSET = 0,
308 /** Position of the bitrate. */
309 AFHI_BITRATE_OFFSET = 4,
310 /** Position of the frequency. */
311 AFHI_FREQUENCY_OFFSET = 8,
312 /** Location of the audio file header. */
313 AFHI_HEADER_OFFSET_OFFSET = 12,
314 /* Length of the audio file header. Zero means: No header. */
315 AFHI_HEADER_LEN_OFFSET = 16,
316 /** Number of channels is stored here. */
317 AFHI_CHANNELS_OFFSET = 20,
318 /** EOF timeout in ms. */
319 AFHI_EOF_OFFSET = 21,
320 /** The tag info position. */
321 AFHI_INFO_STRING_OFFSET = 23,
322 /** Minimal on-disk size of a valid afhi struct. */
323 MIN_AFHI_SIZE = 24
324 };
325
326 static unsigned sizeof_afhi_buf(const struct afh_info *afhi)
327 {
328 if (!afhi)
329 return 0;
330 return strlen(afhi->info_string) + MIN_AFHI_SIZE;
331 }
332
333 static void save_afhi(struct afh_info *afhi, char *buf)
334 {
335 if (!afhi)
336 return;
337 write_u32(buf + AFHI_SECONDS_TOTAL_OFFSET,
338 afhi->seconds_total);
339 write_u32(buf + AFHI_BITRATE_OFFSET, afhi->bitrate);
340 write_u32(buf + AFHI_FREQUENCY_OFFSET, afhi->frequency);
341 write_u32(buf + AFHI_HEADER_OFFSET_OFFSET, afhi->header_offset);
342 write_u32(buf + AFHI_HEADER_LEN_OFFSET, afhi->header_len);
343 write_u8(buf + AFHI_CHANNELS_OFFSET, afhi->channels);
344 write_u16(buf + AFHI_EOF_OFFSET, tv2ms(&afhi->eof_tv));
345 strcpy(buf + AFHI_INFO_STRING_OFFSET, afhi->info_string); /* OK */
346 PARA_DEBUG_LOG("last byte written: %p\n", buf + AFHI_INFO_STRING_OFFSET + strlen(afhi->info_string));
347 }
348
349 static void load_afhi(const char *buf, struct afh_info *afhi)
350 {
351 afhi->seconds_total = read_u32(buf + AFHI_SECONDS_TOTAL_OFFSET);
352 afhi->bitrate = read_u32(buf + AFHI_BITRATE_OFFSET);
353 afhi->frequency = read_u32(buf + AFHI_FREQUENCY_OFFSET);
354 afhi->channels = read_u8(buf + AFHI_CHANNELS_OFFSET);
355 afhi->header_offset = read_u32(buf + AFHI_HEADER_OFFSET_OFFSET);
356 afhi->header_len = read_u32(buf + AFHI_HEADER_LEN_OFFSET);
357 ms2tv(read_u16(buf + AFHI_EOF_OFFSET), &afhi->eof_tv);
358 strcpy(afhi->info_string, buf + AFHI_INFO_STRING_OFFSET);
359 }
360
361 //#define SIZEOF_CHUNK_TABLE(afhi) (((afhi)->chunks_total + 1) * sizeof(uint32_t))
362
363 static unsigned sizeof_chunk_info_buf(struct afh_info *afhi)
364 {
365 if (!afhi)
366 return 0;
367 return 4 * (afhi->chunks_total + 1) + 20;
368
369 }
370
371 /** The offsets of the data contained in the AFTCOL_CHUNKS column. */
372 enum chunk_info_offsets{
373 /** The total number of chunks (4 bytes). */
374 CHUNKS_TOTAL_OFFSET = 0,
375 /** The length of the audio file header (4 bytes). */
376 HEADER_LEN_OFFSET = 4,
377 /** The start of the audio file header (4 bytes). */
378 HEADER_OFFSET_OFFSET = 8,
379 /** The seconds part of the chunk time (4 bytes). */
380 CHUNK_TV_TV_SEC_OFFSET = 12,
381 /** The microseconds part of the chunk time (4 bytes). */
382 CHUNK_TV_TV_USEC = 16,
383 /** Chunk table entries start here. */
384 CHUNK_TABLE_OFFSET = 20,
385 };
386
387 static void save_chunk_table(struct afh_info *afhi, char *buf)
388 {
389 int i;
390
391 PARA_DEBUG_LOG("%lu chunks\n", afhi->chunks_total);
392 for (i = 0; i <= afhi->chunks_total; i++)
393 write_u32(buf + 4 * i, afhi->chunk_table[i]);
394 }
395
396 static void load_chunk_table(struct afh_info *afhi, char *buf)
397 {
398 int i;
399 for (i = 0; i <= afhi->chunks_total; i++)
400 afhi->chunk_table[i] = read_u32(buf + 4 * i);
401 }
402
403 /* TODO: audio format handlers could just produce this */
404 static void save_chunk_info(struct afh_info *afhi, char *buf)
405 {
406 if (!afhi)
407 return;
408 write_u32(buf + CHUNKS_TOTAL_OFFSET, afhi->chunks_total);
409 write_u32(buf + HEADER_LEN_OFFSET, afhi->header_len);
410 write_u32(buf + HEADER_OFFSET_OFFSET, afhi->header_offset);
411 write_u32(buf + CHUNK_TV_TV_SEC_OFFSET, afhi->chunk_tv.tv_sec);
412 write_u32(buf + CHUNK_TV_TV_USEC, afhi->chunk_tv.tv_usec);
413 save_chunk_table(afhi, buf + CHUNK_TABLE_OFFSET);
414 }
415
416 static int load_chunk_info(struct osl_object *obj, struct afh_info *afhi)
417 {
418 char *buf = obj->data;
419
420 if (obj->size < CHUNK_TABLE_OFFSET)
421 return -E_BAD_DATA_SIZE;
422
423 afhi->chunks_total = read_u32(buf + CHUNKS_TOTAL_OFFSET);
424 afhi->header_len = read_u32(buf + HEADER_LEN_OFFSET);
425 afhi->header_offset = read_u32(buf + HEADER_OFFSET_OFFSET);
426 afhi->chunk_tv.tv_sec = read_u32(buf + CHUNK_TV_TV_SEC_OFFSET);
427 afhi->chunk_tv.tv_usec = read_u32(buf + CHUNK_TV_TV_USEC);
428
429 if ((afhi->chunks_total + 1) * 4 + CHUNK_TABLE_OFFSET > obj->size)
430 return -E_BAD_DATA_SIZE;
431 afhi->chunk_table = para_malloc((afhi->chunks_total + 1) * 4);
432 load_chunk_table(afhi, buf + CHUNK_TABLE_OFFSET);
433 return 1;
434 }
435
436 /**
437 * Get the row of the audio file table corresponding to the given path.
438 *
439 * \param path The full path of the audio file.
440 * \param row Result pointer.
441 *
442 * \return The return value of the underlying call to osl_get_row().
443 */
444 int aft_get_row_of_path(const char *path, struct osl_row **row)
445 {
446 struct osl_object obj = {.data = (char *)path, .size = strlen(path) + 1};
447
448 return osl_get_row(audio_file_table, AFTCOL_PATH, &obj, row);
449 }
450
451 /**
452 * Get the row of the audio file table corresponding to the given hash value.
453 *
454 * \param hash The hash value of the desired audio file.
455 * \param row resul pointer.
456 *
457 * \return The return value of the underlying call to osl_get_row().
458 */
459 int aft_get_row_of_hash(HASH_TYPE *hash, struct osl_row **row)
460 {
461 const struct osl_object obj = {.data = hash, .size = HASH_SIZE};
462 return osl_get_row(audio_file_table, AFTCOL_HASH, &obj, row);
463 }
464
465 /**
466 * Get the osl object holding the audio file selector info of a row.
467 *
468 * \param row Pointer to a row in the audio file table.
469 * \param obj Result pointer.
470 *
471 * \return The return value of the underlying call to osl_get_object().
472 */
473 int get_afsi_object_of_row(const struct osl_row *row, struct osl_object *obj)
474 {
475 return osl_get_object(audio_file_table, row, AFTCOL_AFSI, obj);
476 }
477
478 /**
479 * Get the osl object holding the audio file selector info, given a path.
480 *
481 *
482 * \param path The full path of the audio file.
483 * \param obj Result pointer.
484 *
485 * \return Positive on success, negative on errors.
486 */
487 int get_afsi_object_of_path(const char *path, struct osl_object *obj)
488 {
489 struct osl_row *row;
490 int ret = aft_get_row_of_path(path, &row);
491 if (ret < 0)
492 return ret;
493 return get_afsi_object_of_row(row, obj);
494 }
495
496 /**
497 * Get the audio file selector info, given a row of the audio file table.
498 *
499 * \param row Pointer to a row in the audio file table.
500 * \param afsi Result pointer.
501 *
502 * \return Positive on success, negative on errors.
503 */
504 int get_afsi_of_row(const struct osl_row *row, struct afs_info *afsi)
505 {
506 struct osl_object obj;
507 int ret = get_afsi_object_of_row(row, &obj);
508 if (ret < 0)
509 return ret;
510 return load_afsi(afsi, &obj);
511 }
512
513 /**
514 * Get the audio file selector info, given the path of an audio table.
515 *
516 * \param path The full path of the audio file.
517 * \param afsi Result pointer.
518 *
519 * \return Positive on success, negative on errors.
520 */
521 int get_afsi_of_path(const char *path, struct afs_info *afsi)
522 {
523 struct osl_object obj;
524 int ret = get_afsi_object_of_path(path, &obj);
525 if (ret < 0)
526 return ret;
527 return load_afsi(afsi, &obj);
528 }
529
530 /**
531 * Get the path of an audio file, given a row of the audio file table.
532 *
533 * \param row Pointer to a row in the audio file table.
534 * \param path Result pointer.
535 *
536 * The result is a pointer to mmapped data. The caller must not attempt
537 * to free it.
538 *
539 * \return Standard.
540 */
541 int get_audio_file_path_of_row(const struct osl_row *row, char **path)
542 {
543 struct osl_object path_obj;
544 int ret = osl_get_object(audio_file_table, row, AFTCOL_PATH,
545 &path_obj);
546 if (ret < 0)
547 return ret;
548 *path = path_obj.data;
549 return 1;
550 }
551
552 /**
553 * Get the object containing the hash value of an audio file, given a row.
554 *
555 * \param row Pointer to a row of the audio file table.
556 * \param obj Result pointer.
557 *
558 * \return The return value of the underlying call to osl_get_object().
559 *
560 * \sa get_hash_of_row().
561 */
562 static int get_hash_object_of_aft_row(const struct osl_row *row, struct osl_object *obj)
563 {
564 return osl_get_object(audio_file_table, row, AFTCOL_HASH, obj);
565 }
566
567 /**
568 * Get the hash value of an audio file, given a row of the audio file table.
569 *
570 * \param row Pointer to a row of the audio file table.
571 * \param hash Result pointer.
572 *
573 * \a hash points to mapped data and must not be freed by the caller.
574 *
575 * \return The return value of the underlying call to
576 * get_hash_object_of_aft_row().
577 */
578 static int get_hash_of_row(const struct osl_row *row, HASH_TYPE **hash)
579 {
580 struct osl_object obj;
581 int ret = get_hash_object_of_aft_row(row, &obj);
582
583 if (ret < 0)
584 return ret;
585 *hash = obj.data;
586 return 1;
587 }
588
589 /**
590 * Get the audio format handler info, given a row of the audio file table.
591 *
592 * \param row Pointer to a row of the audio file table.
593 * \param afhi Result pointer.
594 *
595 * \return The return value of the underlying call to osl_get_object().
596 *
597 * \sa get_chunk_table_of_row().
598 */
599 int get_afhi_of_row(const struct osl_row *row, struct afh_info *afhi)
600 {
601 struct osl_object obj;
602 int ret = osl_get_object(audio_file_table, row, AFTCOL_AFHI,
603 &obj);
604 if (ret < 0)
605 return ret;
606 load_afhi(obj.data, afhi);
607 return 1;
608 }
609
610 /* returns shmid on success */
611 static int save_afd(struct audio_file_data *afd)
612 {
613 size_t size = sizeof(*afd)
614 + 4 * (afd->afhi.chunks_total + 1);
615
616 PARA_DEBUG_LOG("size: %zu\n", size);
617 int shmid, ret = shm_new(size);
618 void *shm_afd;
619 char *buf;
620
621 if (ret < 0)
622 return ret;
623 shmid = ret;
624 ret = shm_attach(shmid, ATTACH_RW, &shm_afd);
625 if (ret < 0)
626 goto err;
627 *(struct audio_file_data *)shm_afd = *afd;
628 buf = shm_afd;
629 buf += sizeof(*afd);
630 save_chunk_table(&afd->afhi, buf);
631 shm_detach(shm_afd);
632 return shmid;
633 err:
634 shm_destroy(shmid);
635 return ret;
636 }
637
638 int load_afd(int shmid, struct audio_file_data *afd)
639 {
640 void *shm_afd;
641 char *buf;
642 int ret;
643
644 ret = shm_attach(shmid, ATTACH_RO, &shm_afd);
645 if (ret < 0)
646 return ret;
647 *afd = *(struct audio_file_data *)shm_afd;
648 buf = shm_afd;
649 buf += sizeof(*afd);
650 afd->afhi.chunk_table = para_malloc((afd->afhi.chunks_total + 1) * 4);
651 load_chunk_table(&afd->afhi, buf);
652 shm_detach(shm_afd);
653 return 1;
654 }
655
656 /**
657 * Mmap the given audio file and update statistics.
658 *
659 * \param aft_row Determines the audio file to be opened and updated.
660 * \param afd Result pointer.
661 *
662 * On success, the numplayed field of the audio file selector info is increased
663 * and the lastplayed time is set to the current time. Finally, the score of
664 * the audio file is updated.
665 *
666 * \return Positive on success, negative on errors.
667 */
668 int open_and_update_audio_file(struct osl_row *aft_row, struct audio_file_data *afd)
669 {
670 HASH_TYPE *aft_hash, file_hash[HASH_SIZE];
671 struct osl_object afsi_obj;
672 struct afs_info new_afsi;
673 int ret = get_hash_of_row(aft_row, &aft_hash);
674 struct afsi_change_event_data aced;
675 struct osl_object map, chunk_table_obj;
676 char *path;
677
678 if (ret < 0)
679 return ret;
680 ret = get_audio_file_path_of_row(aft_row, &path);
681 if (ret < 0)
682 return ret;
683 strncpy(afd->path, path, sizeof(afd->path) - 1);
684 afd->path[sizeof(afd->path) - 1] = '\0';
685 ret = get_afsi_object_of_row(aft_row, &afsi_obj);
686 if (ret < 0)
687 return ret;
688 ret = load_afsi(&afd->afsi, &afsi_obj);
689 if (ret < 0)
690 return ret;
691 ret = get_afhi_of_row(aft_row, &afd->afhi);
692 if (ret < 0)
693 return ret;
694 ret = osl_open_disk_object(audio_file_table, aft_row,
695 AFTCOL_CHUNKS, &chunk_table_obj);
696 if (ret < 0)
697 return ret;
698 ret = mmap_full_file(path, O_RDONLY, &map.data,
699 &map.size, &afd->fd);
700 if (ret < 0)
701 goto err;
702 hash_function(map.data, map.size, file_hash);
703 ret = hash_compare(file_hash, aft_hash);
704 para_munmap(map.data, map.size);
705 if (ret) {
706 ret = -E_HASH_MISMATCH;
707 goto err;
708 }
709 new_afsi = afd->afsi;
710 new_afsi.num_played++;
711 new_afsi.last_played = time(NULL);
712 save_afsi(&new_afsi, &afsi_obj); /* in-place update */
713
714 ret = load_chunk_info(&chunk_table_obj, &afd->afhi);
715 if (ret < 0)
716 goto err;
717 {
718 struct ls_data d = {
719 .afhi = afd->afhi,
720 .afsi = afd->afsi,
721 .path = path,
722 .score = afd->score,
723 .hash = file_hash
724 };
725 struct para_buffer pb = {.buf = NULL};
726 ret = make_status_items(&d, &pb);
727 if (ret < 0)
728 goto err;
729 strncpy(afd->afs_status_info, pb.buf, AFS_STATUS_INFO_SIZE);
730 afd->afs_status_info[AFS_STATUS_INFO_SIZE] = '\0';
731 free(pb.buf);
732 }
733 aced.aft_row = aft_row;
734 aced.old_afsi = &afd->afsi;
735 afs_event(AFSI_CHANGE, NULL, &aced);
736 ret = save_afd(afd);
737 if (ret < 0)
738 goto err;
739 free(afd->afhi.chunk_table);
740 err:
741 osl_close_disk_object(&chunk_table_obj);
742 return ret;
743 }
744
745 static int get_local_time(uint64_t *seconds, char *buf, size_t size,
746 time_t current_time, enum ls_listing_mode lm)
747 {
748 struct tm t;
749
750 if (!localtime_r((time_t *)seconds, &t))
751 return -E_LOCALTIME;
752 if (lm == LS_MODE_MBOX) {
753 if (!strftime(buf, size, "%c", &t))
754 return -E_STRFTIME;
755 return 1;
756 }
757 if (*seconds + 6 * 30 * 24 * 3600 > current_time) {
758 if (!strftime(buf, size, "%b %e %k:%M", &t))
759 return -E_STRFTIME;
760 return 1;
761 }
762 if (!strftime(buf, size, "%b %e %Y", &t))
763 return -E_STRFTIME;
764 return 1;
765 }
766
767 /** Compute the number of (decimal) digits of a number. */
768 #define GET_NUM_DIGITS(x, num) { \
769 typeof((x)) _tmp = PARA_ABS(x); \
770 *num = 1; \
771 if ((x)) \
772 while ((_tmp) > 9) { \
773 (_tmp) /= 10; \
774 (*num)++; \
775 } \
776 }
777
778 static short unsigned get_duration_width(int seconds)
779 {
780 short unsigned width;
781 unsigned hours = seconds / 3600, mins = (seconds % 3600) / 60;
782
783 if (!hours) /* less than one hour => m:ss or mm:ss => 4 or 5 digits */
784 return 4 + (mins > 9);
785 /* more than one hour => h:mm:ss, hh:mm:ss, hhh:mm:ss, ... */
786 GET_NUM_DIGITS(hours, &width);
787 return width + 6;
788 }
789
790 static void get_duration_buf(int seconds, char *buf, short unsigned max_width)
791 {
792 unsigned hours = seconds / 3600, mins = (seconds % 3600) / 60;
793
794 if (!hours) /* m:ss or mm:ss */
795 sprintf(buf, "%*u:%02u", max_width - 3, mins, seconds % 60);
796 else /* more than one hour => h:mm:ss, hh:mm:ss, hhh:mm:ss, ... */
797 sprintf(buf, "%*u:%02u:%02u", max_width - 6, hours, mins,
798 seconds % 60);
799 }
800
801 static char *make_attribute_lines(const char *att_bitmap, struct afs_info *afsi)
802 {
803 char *att_text, *att_lines;
804
805 get_attribute_text(&afsi->attributes, " ", &att_text);
806 if (!att_text)
807 return para_strdup(att_bitmap);
808 att_lines = make_message("%s\nattributes_txt: %s",
809 att_bitmap, att_text);
810 free(att_text);
811 return att_lines;
812 }
813
814 static char *make_lyrics_line(struct afs_info *afsi)
815 {
816 char *lyrics_name;
817
818 lyr_get_name_by_id(afsi->lyrics_id, &lyrics_name);
819 if (!lyrics_name)
820 return make_message("%u", afsi->lyrics_id);
821 return make_message("%u (%s)", afsi->lyrics_id, lyrics_name);
822 }
823
824 static char *make_image_line(struct afs_info *afsi)
825 {
826 char *image_name;
827 img_get_name_by_id(afsi->image_id, &image_name);
828 if (!image_name)
829 return make_message("%u", afsi->image_id);
830 return make_message("%u (%s)", afsi->image_id, image_name);
831 }
832
833 static int print_list_item(struct ls_data *d, struct ls_options *opts,
834 struct para_buffer *b, time_t current_time)
835 {
836 int ret;
837 char att_buf[65];
838 char last_played_time[30];
839 char duration_buf[30]; /* nobody has an audio file long enough to overflow this */
840 char score_buf[30] = "";
841 struct afs_info *afsi = &d->afsi;
842 struct afh_info *afhi = &d->afhi;
843 struct ls_widths *w = &opts->widths;
844 int have_score = opts->flags & LS_FLAG_ADMISSIBLE_ONLY;
845 char asc_hash[2 * HASH_SIZE + 1];
846 char *att_lines, *lyrics_line, *image_line;
847
848 if (opts->mode == LS_MODE_SHORT) {
849 para_printf(b, "%s\n", d->path);
850 return 1;
851 }
852 get_attribute_bitmap(&afsi->attributes, att_buf);
853 ret = get_local_time(&afsi->last_played, last_played_time,
854 sizeof(last_played_time), current_time, opts->mode);
855 if (ret < 0)
856 return ret;
857 get_duration_buf(afhi->seconds_total, duration_buf, w->duration_width);
858 if (have_score) {
859 if (opts->mode == LS_MODE_LONG)
860 sprintf(score_buf, "%*li ", w->score_width, d->score);
861 else
862 sprintf(score_buf, "%li ", d->score);
863 }
864
865 if (opts->mode == LS_MODE_LONG) {
866 para_printf(b,
867 "%s" /* score */
868 "%s " /* attributes */
869 "%*d " /* image_id */
870 "%*d " /* lyrics_id */
871 "%*d " /* bitrate */
872 "%s " /* audio format */
873 "%*d " /* frequency */
874 "%d " /* channels */
875 "%s " /* duration */
876 "%*d " /* num_played */
877 "%s " /* last_played */
878 "%s\n", /* path */
879 score_buf,
880 att_buf,
881 w->image_id_width, afsi->image_id,
882 w->lyrics_id_width, afsi->lyrics_id,
883 w->bitrate_width, afhi->bitrate,
884 audio_format_name(afsi->audio_format_id),
885 w->frequency_width, afhi->frequency,
886 afhi->channels,
887 duration_buf,
888 w->num_played_width, afsi->num_played,
889 last_played_time,
890 d->path
891 );
892 return 1;
893 }
894 hash_to_asc(d->hash, asc_hash);
895 att_lines = make_attribute_lines(att_buf, afsi);
896 lyrics_line = make_lyrics_line(afsi);
897 image_line = make_image_line(afsi);
898 if (opts->mode == LS_MODE_VERBOSE) {
899 para_printf(b,
900 "%s: %s\n" /* path */
901 "%s%s%s" /* score */
902 "attributes: %s\n"
903 "hash: %s\n"
904 "image_id: %s\n"
905 "lyrics_id: %s\n"
906 "bitrate: %dkbit/s\n"
907 "format: %s\n"
908 "frequency: %dHz\n"
909 "channels: %d\n"
910 "duration: %s\n"
911 "num_played: %d\n"
912 "last_played: %s\n"
913 "tag info: %s\n",
914 (opts->flags & LS_FLAG_FULL_PATH)?
915 "path" : "file", d->path,
916 have_score? "score: " : "", score_buf,
917 have_score? "\n" : "",
918 att_lines,
919 asc_hash,
920 image_line,
921 lyrics_line,
922 afhi->bitrate,
923 audio_format_name(afsi->audio_format_id),
924 afhi->frequency,
925 afhi->channels,
926 duration_buf,
927 afsi->num_played,
928 last_played_time,
929 afhi->info_string
930 );
931 } else { /* mbox mode */
932 struct osl_object lyrics_def;
933 lyr_get_def_by_id(afsi->lyrics_id, &lyrics_def);
934 para_printf(b,
935 "From foo@localhost %s\n"
936 "Received: from\nTo: bar\nFrom: a\n"
937 "Subject: %s\n\n" /* path */
938 "%s%s%s" /* score */
939 "%s\n" /* attributes */
940 "hash: %s\n"
941 "image_id: %s\n"
942 "lyrics_id: %s\n"
943 "bitrate: %dkbit/s\n"
944 "format: %s\n"
945 "frequency: %dHz\n"
946 "channels: %d\n"
947 "duration: %s\n"
948 "num_played: %d\n"
949 "tag info: %s\n"
950 "%s%s\n",
951 last_played_time,
952 d->path,
953 have_score? "score: " : "", score_buf,
954 have_score? "\n" : "",
955 att_lines,
956 asc_hash,
957 image_line,
958 lyrics_line,
959 afhi->bitrate,
960 audio_format_name(afsi->audio_format_id),
961 afhi->frequency,
962 afhi->channels,
963 duration_buf,
964 afsi->num_played,
965 afhi->info_string,
966 lyrics_def.data? "Lyrics:\n~~~~~~~\n" : "",
967 lyrics_def.data? (char *)lyrics_def.data : ""
968 );
969 if (lyrics_def.data)
970 osl_close_disk_object(lyrics_def.data);
971 }
972 free(att_lines);
973 free(lyrics_line);
974 free(image_line);
975 return 1;
976 }
977
978 int make_status_items(struct ls_data *d, struct para_buffer *pb)
979 {
980 struct ls_options opts = {
981 .flags = LS_FLAG_FULL_PATH | LS_FLAG_ADMISSIBLE_ONLY,
982 .mode = LS_MODE_VERBOSE,
983 };
984 time_t current_time;
985
986 time(&current_time);
987 return print_list_item(d, &opts, pb, current_time);
988 }
989
990
991 static int ls_audio_format_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.audio_format_id, d2->afsi.audio_format_id);
995 }
996
997 static int ls_duration_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->afhi.seconds_total, d2->afhi.seconds_total);
1001 }
1002
1003 static int ls_bitrate_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.bitrate, d2->afhi.bitrate);
1007 }
1008
1009 static int ls_lyrics_id_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->afsi.lyrics_id, d2->afsi.lyrics_id);
1013 }
1014
1015 static int ls_image_id_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.image_id, d2->afsi.image_id);
1019 }
1020
1021 static int ls_channels_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->afhi.channels, d2->afhi.channels);
1025 }
1026
1027 static int ls_frequency_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->afhi.frequency, d2->afhi.frequency);
1031 }
1032
1033 static int ls_num_played_compare(const void *a, const void *b)
1034 {
1035 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1036 return NUM_COMPARE(d1->afsi.num_played, d2->afsi.num_played);
1037 }
1038
1039 static int ls_last_played_compare(const void *a, const void *b)
1040 {
1041 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1042 return NUM_COMPARE(d1->afsi.last_played, d2->afsi.last_played);
1043 }
1044
1045 static int ls_score_compare(const void *a, const void *b)
1046 {
1047 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1048 return NUM_COMPARE(d1->score, d2->score);
1049 }
1050
1051 static int ls_path_compare(const void *a, const void *b)
1052 {
1053 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1054 return strcmp(d1->path, d2->path);
1055 }
1056
1057 static int sort_matching_paths(struct ls_options *options)
1058 {
1059 size_t nmemb = options->num_matching_paths;
1060 size_t size = sizeof(*options->data_ptr);
1061 int (*compar)(const void *, const void *);
1062 int i;
1063
1064 options->data_ptr = para_malloc(nmemb * sizeof(*options->data_ptr));
1065 for (i = 0; i < nmemb; i++)
1066 options->data_ptr[i] = options->data + i;
1067
1068 /* In these cases the array is already sorted */
1069 if (options->sorting == LS_SORT_BY_PATH
1070 && !(options->flags & LS_FLAG_ADMISSIBLE_ONLY)
1071 && (options->flags & LS_FLAG_FULL_PATH))
1072 return 1;
1073 if (options->sorting == LS_SORT_BY_SCORE &&
1074 options->flags & LS_FLAG_ADMISSIBLE_ONLY)
1075 return 1;
1076
1077 switch (options->sorting) {
1078 case LS_SORT_BY_PATH:
1079 compar = ls_path_compare; break;
1080 case LS_SORT_BY_SCORE:
1081 compar = ls_score_compare; break;
1082 case LS_SORT_BY_LAST_PLAYED:
1083 compar = ls_last_played_compare; break;
1084 case LS_SORT_BY_NUM_PLAYED:
1085 compar = ls_num_played_compare; break;
1086 case LS_SORT_BY_FREQUENCY:
1087 compar = ls_frequency_compare; break;
1088 case LS_SORT_BY_CHANNELS:
1089 compar = ls_channels_compare; break;
1090 case LS_SORT_BY_IMAGE_ID:
1091 compar = ls_image_id_compare; break;
1092 case LS_SORT_BY_LYRICS_ID:
1093 compar = ls_lyrics_id_compare; break;
1094 case LS_SORT_BY_BITRATE:
1095 compar = ls_bitrate_compare; break;
1096 case LS_SORT_BY_DURATION:
1097 compar = ls_duration_compare; break;
1098 case LS_SORT_BY_AUDIO_FORMAT:
1099 compar = ls_audio_format_compare; break;
1100 default:
1101 return -E_BAD_SORT;
1102 }
1103 qsort(options->data_ptr, nmemb, size, compar);
1104 return 1;
1105 }
1106
1107 /* row is either an aft_row or a row of the score table */
1108 /* TODO: Only compute widths if we need them */
1109 static int prepare_ls_row(struct osl_row *row, void *ls_opts)
1110 {
1111 int ret, i;
1112 struct ls_options *options = ls_opts;
1113 struct ls_data *d;
1114 struct ls_widths *w;
1115 unsigned short num_digits;
1116 unsigned tmp;
1117 struct osl_row *aft_row;
1118 long score;
1119 char *path;
1120
1121 if (options->flags & LS_FLAG_ADMISSIBLE_ONLY) {
1122 ret = get_score_and_aft_row(row, &score, &aft_row);
1123 if (ret < 0)
1124 return ret;
1125 } else
1126 aft_row = row;
1127 ret = get_audio_file_path_of_row(aft_row, &path);
1128 if (ret < 0)
1129 return ret;
1130 if (!(options->flags & LS_FLAG_FULL_PATH)) {
1131 char *p = strrchr(path, '/');
1132 if (p)
1133 path = p + 1;
1134 }
1135 if (options->num_patterns) {
1136 for (i = 0; i < options->num_patterns; i++) {
1137 ret = fnmatch(options->patterns[i], path, 0);
1138 if (!ret)
1139 break;
1140 if (ret == FNM_NOMATCH)
1141 continue;
1142 return -E_FNMATCH;
1143 }
1144 if (i >= options->num_patterns) /* no match */
1145 return 1;
1146 }
1147 tmp = options->num_matching_paths++;
1148 if (options->num_matching_paths > options->array_size) {
1149 options->array_size++;
1150 options->array_size *= 2;
1151 options->data = para_realloc(options->data, options->array_size
1152 * sizeof(*options->data));
1153 }
1154 d = options->data + tmp;
1155 ret = get_afsi_of_row(aft_row, &d->afsi);
1156 if (ret < 0)
1157 return ret;
1158 ret = get_afhi_of_row(aft_row, &d->afhi);
1159 if (ret < 0)
1160 return ret;
1161 d->path = path;
1162 ret = get_hash_of_row(aft_row, &d->hash);
1163 if (ret < 0)
1164 return ret;
1165 w = &options->widths;
1166 GET_NUM_DIGITS(d->afsi.image_id, &num_digits);
1167 w->image_id_width = PARA_MAX(w->image_id_width, num_digits);
1168 GET_NUM_DIGITS(d->afsi.lyrics_id, &num_digits);
1169 w->lyrics_id_width = PARA_MAX(w->lyrics_id_width, num_digits);
1170 GET_NUM_DIGITS(d->afhi.bitrate, &num_digits);
1171 w->bitrate_width = PARA_MAX(w->bitrate_width, num_digits);
1172 GET_NUM_DIGITS(d->afhi.frequency, &num_digits);
1173 w->frequency_width = PARA_MAX(w->frequency_width, num_digits);
1174 GET_NUM_DIGITS(d->afsi.num_played, &num_digits);
1175 w->num_played_width = PARA_MAX(w->num_played_width, num_digits);
1176 /* get the number of chars to print this amount of time */
1177 tmp = get_duration_width(d->afhi.seconds_total);
1178 w->duration_width = PARA_MAX(w->duration_width, tmp);
1179 if (options->flags & LS_FLAG_ADMISSIBLE_ONLY) {
1180 GET_NUM_DIGITS(score, &num_digits);
1181 num_digits++; /* add one for the sign (space or "-") */
1182 w->score_width = PARA_MAX(w->score_width, num_digits);
1183 d->score = score;
1184 }
1185 return 1;
1186 }
1187
1188 static int com_ls_callback(const struct osl_object *query,
1189 struct osl_object *ls_output)
1190 {
1191 struct ls_options *opts = query->data;
1192 char *p, *pattern_start = (char *)query->data + sizeof(*opts);
1193 struct para_buffer b = {.buf = NULL, .size = 0};
1194 int i = 0, ret;
1195 time_t current_time;
1196
1197
1198 if (opts->num_patterns) {
1199 opts->patterns = para_malloc(opts->num_patterns * sizeof(char *));
1200 for (i = 0, p = pattern_start; i < opts->num_patterns; i++) {
1201 opts->patterns[i] = p;
1202 p += strlen(p) + 1;
1203 }
1204 } else
1205 opts->patterns = NULL;
1206 if (opts->flags & LS_FLAG_ADMISSIBLE_ONLY)
1207 ret = admissible_file_loop(opts, prepare_ls_row);
1208 else
1209 ret = osl_rbtree_loop(audio_file_table, AFTCOL_PATH, opts,
1210 prepare_ls_row);
1211 if (ret < 0)
1212 goto out;
1213 ret = opts->num_patterns? -E_NO_MATCH : 0;
1214 if (!opts->num_matching_paths)
1215 goto out;
1216 ret = sort_matching_paths(opts);
1217 if (ret < 0)
1218 goto out;
1219 time(&current_time);
1220 if (opts->flags & LS_FLAG_REVERSE)
1221 for (i = opts->num_matching_paths - 1; i >= 0; i--) {
1222 ret = print_list_item(opts->data_ptr[i], opts, &b, current_time);
1223 if (ret < 0)
1224 break;
1225 }
1226 else
1227 for (i = 0; i < opts->num_matching_paths; i++) {
1228 ret = print_list_item(opts->data_ptr[i], opts, &b, current_time);
1229 if (ret < 0)
1230 break;
1231 }
1232 ret = 1;
1233 out:
1234 ls_output->data = b.buf;
1235 ls_output->size = b.size;
1236 free(opts->data);
1237 free(opts->data_ptr);
1238 free(opts->patterns);
1239 return ret;
1240 }
1241
1242 /*
1243 * TODO: flags -h (sort by hash)
1244 */
1245 int com_ls(int fd, int argc, char * const * const argv)
1246 {
1247 int i, ret;
1248 unsigned flags = 0;
1249 enum ls_sorting_method sort = LS_SORT_BY_PATH;
1250 enum ls_listing_mode mode = LS_MODE_SHORT;
1251 struct ls_options opts = {.patterns = NULL};
1252 struct osl_object query = {.data = &opts, .size = sizeof(opts)},
1253 ls_output;
1254
1255 for (i = 1; i < argc; i++) {
1256 const char *arg = argv[i];
1257 if (arg[0] != '-')
1258 break;
1259 if (!strcmp(arg, "--")) {
1260 i++;
1261 break;
1262 }
1263 if (!strncmp(arg, "-l", 2)) {
1264 if (!*(arg + 2)) {
1265 mode = LS_MODE_LONG;
1266 continue;
1267 }
1268 if (*(arg + 3))
1269 return -E_AFT_SYNTAX;
1270 switch(*(arg + 2)) {
1271 case 's':
1272 mode = LS_MODE_SHORT;
1273 continue;
1274 case 'l':
1275 mode = LS_MODE_LONG;
1276 continue;
1277 case 'v':
1278 mode = LS_MODE_VERBOSE;
1279 continue;
1280 case 'm':
1281 mode = LS_MODE_MBOX;
1282 continue;
1283 default:
1284 return -E_AFT_SYNTAX;
1285 }
1286 }
1287 if (!strcmp(arg, "-p")) {
1288 flags |= LS_FLAG_FULL_PATH;
1289 continue;
1290 }
1291 if (!strcmp(arg, "-a")) {
1292 flags |= LS_FLAG_ADMISSIBLE_ONLY;
1293 continue;
1294 }
1295 if (!strcmp(arg, "-r")) {
1296 flags |= LS_FLAG_REVERSE;
1297 continue;
1298 }
1299 if (!strncmp(arg, "-s", 2)) {
1300 if (!*(arg + 2) || *(arg + 3))
1301 return -E_AFT_SYNTAX;
1302 switch(*(arg + 2)) {
1303 case 'p':
1304 sort = LS_SORT_BY_PATH;
1305 continue;
1306 case 's': /* -ss implies -a */
1307 sort = LS_SORT_BY_SCORE;
1308 flags |= LS_FLAG_ADMISSIBLE_ONLY;
1309 continue;
1310 case 'l':
1311 sort = LS_SORT_BY_LAST_PLAYED;
1312 continue;
1313 case 'n':
1314 sort = LS_SORT_BY_NUM_PLAYED;
1315 continue;
1316 case 'f':
1317 sort = LS_SORT_BY_FREQUENCY;
1318 continue;
1319 case 'c':
1320 sort = LS_SORT_BY_CHANNELS;
1321 continue;
1322 case 'i':
1323 sort = LS_SORT_BY_IMAGE_ID;
1324 continue;
1325 case 'y':
1326 sort = LS_SORT_BY_LYRICS_ID;
1327 continue;
1328 case 'b':
1329 sort = LS_SORT_BY_BITRATE;
1330 continue;
1331 case 'd':
1332 sort = LS_SORT_BY_DURATION;
1333 continue;
1334 case 'a':
1335 sort = LS_SORT_BY_AUDIO_FORMAT;
1336 continue;
1337 default:
1338 return -E_AFT_SYNTAX;
1339 }
1340 }
1341 return -E_AFT_SYNTAX;
1342 }
1343 opts.flags = flags;
1344 opts.sorting = sort;
1345 opts.mode = mode;
1346 opts.num_patterns = argc - i;
1347 ret = send_option_arg_callback_request(&query, opts.num_patterns,
1348 argv + i, com_ls_callback, &ls_output);
1349 if (ret > 0) {
1350 ret = send_buffer(fd, (char *)ls_output.data);
1351 free(ls_output.data);
1352 }
1353 return ret;
1354 }
1355
1356 /**
1357 * Call the given function for each file in the audio file table.
1358 *
1359 * \param private_data An arbitrary data pointer, passed to \a func.
1360 * \param func The custom function to be called.
1361 *
1362 * \return The return value of the underlying call to osl_rbtree_loop().
1363 */
1364 int audio_file_loop(void *private_data, osl_rbtree_loop_func *func)
1365 {
1366 return osl_rbtree_loop(audio_file_table, AFTCOL_HASH, private_data,
1367 func);
1368 }
1369
1370 static struct osl_row *find_hash_sister(HASH_TYPE *hash)
1371 {
1372 const struct osl_object obj = {.data = hash, .size = HASH_SIZE};
1373 struct osl_row *row;
1374
1375 osl_get_row(audio_file_table, AFTCOL_HASH, &obj, &row);
1376 return row;
1377 }
1378
1379 enum aft_row_offsets {
1380 AFTROW_AFHI_OFFSET_POS = 0,
1381 AFTROW_CHUNKS_OFFSET_POS = 2,
1382 AFTROW_AUDIO_FORMAT_OFFSET = 4,
1383 AFTROW_FLAGS_OFFSET = 5,
1384 AFTROW_HASH_OFFSET = 9,
1385 AFTROW_PATH_OFFSET = (AFTROW_HASH_OFFSET + HASH_SIZE),
1386 };
1387
1388 /* never save the afsi, as the server knows it too. Note that afhi might be NULL.
1389 * In this case, afhi won't be stored in the buffer */
1390 static void save_audio_file_info(HASH_TYPE *hash, const char *path,
1391 struct afh_info *afhi, uint32_t flags,
1392 uint8_t audio_format_num, struct osl_object *obj)
1393 {
1394 size_t path_len = strlen(path) + 1;
1395 size_t afhi_size = sizeof_afhi_buf(afhi);
1396 size_t size = AFTROW_PATH_OFFSET + path_len + afhi_size
1397 + sizeof_chunk_info_buf(afhi);
1398 char *buf = para_malloc(size);
1399 uint16_t pos;
1400
1401 write_u8(buf + AFTROW_AUDIO_FORMAT_OFFSET, audio_format_num);
1402 write_u32(buf + AFTROW_FLAGS_OFFSET, flags);
1403
1404 memcpy(buf + AFTROW_HASH_OFFSET, hash, HASH_SIZE);
1405 strcpy(buf + AFTROW_PATH_OFFSET, path);
1406
1407 pos = AFTROW_PATH_OFFSET + path_len;
1408 PARA_DEBUG_LOG("size: %zu, afhi starts at %d\n", size, pos);
1409 PARA_DEBUG_LOG("last afhi byte: %p, pos %zu\n", buf + pos + afhi_size - 1,
1410 pos + afhi_size - 1);
1411 write_u16(buf + AFTROW_AFHI_OFFSET_POS, pos);
1412 save_afhi(afhi, buf + pos);
1413
1414 pos += afhi_size;
1415 PARA_DEBUG_LOG("size: %zu, chunks start at %d\n", size, pos);
1416 write_u16(buf + AFTROW_CHUNKS_OFFSET_POS, pos);
1417 save_chunk_info(afhi, buf + pos);
1418 PARA_DEBUG_LOG("last byte in buf: %p\n", buf + size - 1);
1419 obj->data = buf;
1420 obj->size = size;
1421 }
1422
1423 /*
1424 input:
1425 ~~~~~~
1426 HS: hash sister
1427 PB: path brother
1428 F: force flag given
1429
1430 output:
1431 ~~~~~~~
1432 AFHI: whether afhi and chunk table are computed and sent
1433 ACTION: table modifications to be performed
1434
1435 +---+----+-----+------+---------------------------------------------------+
1436 | HS | PB | F | AFHI | ACTION
1437 +---+----+-----+------+---------------------------------------------------+
1438 | Y | Y | Y | Y | if HS != PB: remove PB. HS: force afhi update,
1439 | | update path, keep afsi
1440 +---+----+-----+------+---------------------------------------------------+
1441 | Y | Y | N | N | if HS == PB: do not send callback request at all.
1442 | | otherwise: remove PB, HS: update path, keep afhi,
1443 | | afsi.
1444 +---+----+-----+------+---------------------------------------------------+
1445 | Y | N | Y | Y | (rename) force afhi update of HS, update path of
1446 | | HS, keep afsi
1447 +---+----+-----+------+---------------------------------------------------+
1448 | Y | N | N | N | (file rename) update path of HS, keep afsi, afhi
1449 +---+----+-----+------+---------------------------------------------------+
1450 | N | Y | Y | Y | (file change) update afhi, hash, of PB, keep afsi
1451 | | (force has no effect)
1452 +---+----+-----+------+---------------------------------------------------+
1453 | N | Y | N | Y | (file change) update afhi, hash of PB, keep afsi
1454 +---+----+-----+------+---------------------------------------------------+
1455 | N | N | Y | Y | (new file) create new entry (force has no effect)
1456 +---+----+-----+------+---------------------------------------------------+
1457 | N | N | N | Y | (new file) create new entry
1458 +---+----+-----+------+---------------------------------------------------+
1459
1460 afhi <=> force or no HS
1461
1462 */
1463
1464 /** Flags passed to the add command. */
1465 enum com_add_flags {
1466 /** Skip paths that exist already. */
1467 ADD_FLAG_LAZY = 1,
1468 /** Force adding. */
1469 ADD_FLAG_FORCE = 2,
1470 /** Print what is being done. */
1471 ADD_FLAG_VERBOSE = 4,
1472 /** Try to add files with unknown suffixes. */
1473 ADD_FLAG_ALL = 8,
1474 };
1475
1476 static int com_add_callback(const struct osl_object *query,
1477 struct osl_object *result)
1478 {
1479 char *buf = query->data, *path;
1480 struct osl_row *pb, *aft_row;
1481 struct osl_row *hs;
1482 struct osl_object objs[NUM_AFT_COLUMNS];
1483 HASH_TYPE *hash;
1484 char asc[2 * HASH_SIZE + 1];
1485 int ret;
1486 char afsi_buf[AFSI_SIZE];
1487 uint32_t flags = read_u32(buf + AFTROW_FLAGS_OFFSET);
1488 struct afs_info default_afsi = {.last_played = 0};
1489 struct para_buffer msg = {.buf = NULL};
1490
1491 hash = (HASH_TYPE *)buf + AFTROW_HASH_OFFSET;
1492 hash_to_asc(hash, asc);;
1493 objs[AFTCOL_HASH].data = buf + AFTROW_HASH_OFFSET;
1494 objs[AFTCOL_HASH].size = HASH_SIZE;
1495
1496 path = buf + AFTROW_PATH_OFFSET;
1497 objs[AFTCOL_PATH].data = path;
1498 objs[AFTCOL_PATH].size = strlen(path) + 1;
1499
1500 PARA_INFO_LOG("request to add %s\n", path);
1501 hs = find_hash_sister(hash);
1502 ret = aft_get_row_of_path(path, &pb);
1503 if (ret < 0 && ret != -E_RB_KEY_NOT_FOUND)
1504 return ret;
1505 if (hs && pb && hs == pb && !(flags & ADD_FLAG_FORCE)) {
1506 if (flags & ADD_FLAG_VERBOSE)
1507 para_printf(&msg, "ignoring duplicate\n");
1508 ret = 1;
1509 goto out;
1510 }
1511 if (hs && hs != pb) {
1512 struct osl_object obj;
1513 if (pb) { /* hs trumps pb, remove pb */
1514 if (flags & ADD_FLAG_VERBOSE)
1515 para_printf(&msg, "removing path brother\n");
1516 ret = osl_del_row(audio_file_table, pb);
1517 if (ret < 0)
1518 goto out;
1519 pb = NULL;
1520 }
1521 /* file rename, update hs' path */
1522 if (flags & ADD_FLAG_VERBOSE) {
1523 ret = osl_get_object(audio_file_table, hs,
1524 AFTCOL_PATH, &obj);
1525 if (ret < 0)
1526 goto out;
1527 para_printf(&msg, "renamed from %s\n", (char *)obj.data);
1528 }
1529 ret = osl_update_object(audio_file_table, hs, AFTCOL_PATH,
1530 &objs[AFTCOL_PATH]);
1531 if (ret < 0)
1532 goto out;
1533 afs_event(AUDIO_FILE_RENAME, &msg, hs);
1534 if (!(flags & ADD_FLAG_FORCE))
1535 goto out;
1536 }
1537 /* no hs or force mode, child must have sent afhi */
1538 uint16_t afhi_offset = read_u16(buf + AFTROW_AFHI_OFFSET_POS);
1539 uint16_t chunks_offset = read_u16(buf + AFTROW_CHUNKS_OFFSET_POS);
1540
1541 objs[AFTCOL_AFHI].data = buf + afhi_offset;
1542 objs[AFTCOL_AFHI].size = chunks_offset - afhi_offset;
1543 ret = -E_NO_AFHI;
1544 if (!objs[AFTCOL_AFHI].size) /* "impossible" */
1545 goto out;
1546 objs[AFTCOL_CHUNKS].data = buf + chunks_offset;
1547 objs[AFTCOL_CHUNKS].size = query->size - chunks_offset;
1548 if (pb && !hs) { /* update pb's hash */
1549 char old_asc[2 * HASH_SIZE + 1];
1550 HASH_TYPE *old_hash;
1551 ret = get_hash_of_row(pb, &old_hash);
1552 if (ret < 0)
1553 goto out;
1554 hash_to_asc(old_hash, old_asc);
1555 if (flags & ADD_FLAG_VERBOSE)
1556 para_printf(&msg, "file change: %s -> %s\n",
1557 old_asc, asc);
1558 ret = osl_update_object(audio_file_table, pb, AFTCOL_HASH,
1559 &objs[AFTCOL_HASH]);
1560 if (ret < 0)
1561 goto out;
1562 }
1563 if (hs || pb) { /* (hs != NULL and pb != NULL) implies hs == pb */
1564 struct osl_row *row = pb? pb : hs;
1565 /* update afhi and chunk_table */
1566 if (flags & ADD_FLAG_VERBOSE)
1567 para_printf(&msg, "updating afhi and chunk table\n");
1568 ret = osl_update_object(audio_file_table, row, AFTCOL_AFHI,
1569 &objs[AFTCOL_AFHI]);
1570 if (ret < 0)
1571 goto out;
1572 ret = osl_update_object(audio_file_table, row, AFTCOL_CHUNKS,
1573 &objs[AFTCOL_CHUNKS]);
1574 if (ret < 0)
1575 goto out;
1576 afs_event(AFHI_CHANGE, &msg, row);
1577 goto out;
1578 }
1579 /* new entry, use default afsi */
1580 if (flags & ADD_FLAG_VERBOSE)
1581 para_printf(&msg, "new file\n");
1582 default_afsi.last_played = time(NULL) - 365 * 24 * 60 * 60;
1583 default_afsi.audio_format_id = read_u8(buf + AFTROW_AUDIO_FORMAT_OFFSET);
1584
1585 objs[AFTCOL_AFSI].data = &afsi_buf;
1586 objs[AFTCOL_AFSI].size = AFSI_SIZE;
1587 save_afsi(&default_afsi, &objs[AFTCOL_AFSI]);
1588 ret = osl_add_and_get_row(audio_file_table, objs, &aft_row);
1589 out:
1590 if (ret < 0)
1591 para_printf(&msg, "%s\n", PARA_STRERROR(-ret));
1592 if (!msg.buf)
1593 return 0;
1594 result->data = msg.buf;
1595 result->size = msg.size;
1596 afs_event(AUDIO_FILE_ADD, &msg, aft_row);
1597 return 1;
1598 }
1599
1600 /** Used by com_add(). */
1601 struct private_add_data {
1602 /** The socket file descriptor. */
1603 int fd;
1604 /** The given add flags. */
1605 uint32_t flags;
1606 };
1607
1608 static int path_brother_callback(const struct osl_object *query,
1609 struct osl_object *result)
1610 {
1611 char *path = query->data;
1612 struct osl_row *path_brother;
1613 int ret = aft_get_row_of_path(path, &path_brother);
1614 if (ret < 0)
1615 return ret;
1616 result->data = para_malloc(sizeof(path_brother));
1617 result->size = sizeof(path_brother);
1618 *(struct osl_row **)(result->data) = path_brother;
1619 return 1;
1620 }
1621
1622 static int hash_sister_callback(const struct osl_object *query,
1623 struct osl_object *result)
1624 {
1625 HASH_TYPE *hash = query->data;
1626 struct osl_row *hash_sister;
1627
1628 hash_sister = find_hash_sister(hash);
1629 if (!hash_sister)
1630 return -E_RB_KEY_NOT_FOUND;
1631 result->data = para_malloc(sizeof(hash_sister));
1632 result->size = sizeof(hash_sister);
1633 *(struct osl_row **)(result->data) = hash_sister;
1634 return 1;
1635 }
1636
1637 static int add_one_audio_file(const char *path, const void *private_data)
1638 {
1639 int ret, ret2;
1640 uint8_t format_num = -1;
1641 const struct private_add_data *pad = private_data;
1642 struct afh_info afhi, *afhi_ptr = NULL;
1643 struct osl_row *pb = NULL, *hs = NULL; /* path brother/hash sister */
1644 struct osl_object map, obj = {.data = NULL}, query, result = {.data = NULL};
1645 HASH_TYPE hash[HASH_SIZE];
1646
1647 afhi.header_offset = 0;
1648 afhi.header_len = 0;
1649 ret = guess_audio_format(path);
1650 if (ret < 0 && !(pad->flags & ADD_FLAG_ALL))
1651 goto out_free;
1652 query.data = (char *)path;
1653 query.size = strlen(path) + 1;
1654 ret = send_callback_request(path_brother_callback, &query, &result);
1655 if (ret < 0 && ret != -E_RB_KEY_NOT_FOUND)
1656 goto out_free;
1657 if (ret >= 0) {
1658 pb = *(struct osl_row **)result.data;
1659 free(result.data);
1660 }
1661 ret = 1;
1662 if (pb && (pad->flags & ADD_FLAG_LAZY)) { /* lazy is really cheap */
1663 if (pad->flags & ADD_FLAG_VERBOSE)
1664 ret = send_va_buffer(pad->fd, "lazy-ignore: %s\n", path);
1665 goto out_free;
1666 }
1667 /* We still want to add this file. Compute its hash. */
1668 ret = mmap_full_file(path, O_RDONLY, &map.data, &map.size, NULL);
1669 if (ret < 0)
1670 goto out_free;
1671 hash_function(map.data, map.size, hash);
1672
1673 /* Check whether database contains file with the same hash. */
1674 query.data = hash;
1675 query.size = HASH_SIZE;
1676 ret = send_callback_request(hash_sister_callback, &query, &result);
1677 if (ret < 0 && ret != -E_RB_KEY_NOT_FOUND)
1678 goto out_free;
1679 if (ret >= 0) {
1680 hs = *(struct osl_row **)result.data;
1681 free(result.data);
1682 }
1683 /* Return success if we already know this file. */
1684 ret = 1;
1685 if (pb && hs && hs == pb && (!(pad->flags & ADD_FLAG_FORCE))) {
1686 if (pad->flags & ADD_FLAG_VERBOSE)
1687 ret = send_va_buffer(pad->fd,
1688 "%s exists, not forcing update\n", path);
1689 goto out_unmap;
1690 }
1691 /*
1692 * we won't recalculate the audio format info and the chunk table if
1693 * there is a hash sister unless in FORCE mode.
1694 */
1695 if (!hs || (pad->flags & ADD_FLAG_FORCE)) {
1696 ret = compute_afhi(path, map.data, map.size, &afhi);
1697 if (ret < 0)
1698 goto out_unmap;
1699 format_num = ret;
1700 afhi_ptr = &afhi;
1701 }
1702 if (pad->flags & ADD_FLAG_VERBOSE) {
1703 ret = send_va_buffer(pad->fd, "adding %s\n", path);
1704 if (ret < 0)
1705 goto out_unmap;
1706 }
1707 munmap(map.data, map.size);
1708 save_audio_file_info(hash, path, afhi_ptr, pad->flags, format_num, &obj);
1709 /* Ask afs to consider this entry for adding. */
1710 ret = send_callback_request(com_add_callback, &obj, &result);
1711 if (ret > 0) {
1712 ret2 = send_va_buffer(pad->fd, "%s", (char *)result.data);
1713 free(result.data);
1714 if (ret >= 0 && ret2 < 0)
1715 ret = ret2;
1716 }
1717 goto out_free;
1718
1719 out_unmap:
1720 munmap(map.data, map.size);
1721 out_free:
1722 if (ret < 0 && ret != -E_SEND)
1723 send_va_buffer(pad->fd, "failed to add %s (%s)\n", path,
1724 PARA_STRERROR(-ret));
1725 free(obj.data);
1726 if (afhi_ptr)
1727 free(afhi_ptr->chunk_table);
1728 /* it's not an error if not all files could be added */
1729 return ret == -E_SEND? ret : 1;
1730 }
1731
1732 int com_add(int fd, int argc, char * const * const argv)
1733 {
1734 int i, ret;
1735 struct private_add_data pad = {.fd = fd, .flags = 0};
1736 struct stat statbuf;
1737
1738 for (i = 1; i < argc; i++) {
1739 const char *arg = argv[i];
1740 if (arg[0] != '-')
1741 break;
1742 if (!strcmp(arg, "--")) {
1743 i++;
1744 break;
1745 }
1746 if (!strcmp(arg, "-a")) {
1747 pad.flags |= ADD_FLAG_ALL;
1748 continue;
1749 }
1750 if (!strcmp(arg, "-l")) {
1751 pad.flags |= ADD_FLAG_LAZY;
1752 continue;
1753 }
1754 if (!strcmp(arg, "-f")) {
1755 pad.flags |= ADD_FLAG_FORCE;
1756 continue;
1757 }
1758 if (!strcmp(arg, "-v")) {
1759 pad.flags |= ADD_FLAG_VERBOSE;
1760 continue;
1761 }
1762 }
1763 if (argc <= i)
1764 return -E_AFT_SYNTAX;
1765 for (; i < argc; i++) {
1766 char *path;
1767 ret = verify_path(argv[i], &path);
1768 if (ret < 0) {
1769 ret = send_va_buffer(fd, "%s: %s\n", argv[i], PARA_STRERROR(-ret));
1770 if (ret < 0)
1771 return ret;
1772 continue;
1773 }
1774 ret = stat(path, &statbuf);
1775 if (ret < 0) {
1776 ret = send_va_buffer(fd, "failed to stat %s (%s)\n", path,
1777 strerror(errno));
1778 free(path);
1779 if (ret < 0)
1780 return ret;
1781 continue;
1782 }
1783 if (S_ISDIR(statbuf.st_mode))
1784 ret = for_each_file_in_dir(path, add_one_audio_file,
1785 &pad);
1786 else
1787 ret = add_one_audio_file(path, &pad);
1788 if (ret < 0) {
1789 send_va_buffer(fd, "%s: %s\n", path, PARA_STRERROR(-ret));
1790 free(path);
1791 return ret;
1792 }
1793 free(path);
1794 }
1795 return 1;
1796
1797 }
1798
1799 /**
1800 * Flags used by the touch command.
1801 *
1802 * \sa com_touch().
1803 */
1804 enum touch_flags {
1805 /** Whether the \p FNM_PATHNAME flag should be passed to fnmatch(). */
1806 TOUCH_FLAG_FNM_PATHNAME = 1,
1807 /** Activates verbose mode. */
1808 TOUCH_FLAG_VERBOSE = 2
1809 };
1810
1811 /** Options used by com_touch(). */
1812 struct com_touch_options {
1813 /** New num_played value. */
1814 int32_t num_played;
1815 /** New last played count. */
1816 int64_t last_played;
1817 /** new lyrics id. */
1818 int32_t lyrics_id;
1819 /** new image id. */
1820 int32_t image_id;
1821 /** command line flags (see \ref touch_flags). */
1822 unsigned flags;
1823 };
1824
1825 /** Data passed to the action handler of com_touch(). */
1826 struct touch_action_data {
1827 /** Command line options (see \ref com_touch_options). */
1828 struct com_touch_options *cto;
1829 /** Message buffer. */
1830 struct para_buffer pb;
1831 };
1832
1833 static int touch_audio_file(__a_unused struct osl_table *table,
1834 struct osl_row *row, const char *name, void *data)
1835 {
1836 struct touch_action_data *tad = data;
1837 struct osl_object obj;
1838 struct afs_info old_afsi, new_afsi;
1839 int ret, no_options = tad->cto->num_played < 0 && tad->cto->last_played < 0 &&
1840 tad->cto->lyrics_id < 0 && tad->cto->image_id < 0;
1841 struct afsi_change_event_data aced;
1842
1843 ret = get_afsi_object_of_row(row, &obj);
1844 if (ret < 0) {
1845 para_printf(&tad->pb, "%s: %s\n", name, PARA_STRERROR(-ret));
1846 return 1;
1847 }
1848 ret = load_afsi(&old_afsi, &obj);
1849 if (ret < 0) {
1850 para_printf(&tad->pb, "%s: %s\n", name, PARA_STRERROR(-ret));
1851 return 1;
1852 }
1853 new_afsi = old_afsi;
1854 if (no_options) {
1855 new_afsi.num_played++;
1856 new_afsi.last_played = time(NULL);
1857 if (tad->cto->flags & TOUCH_FLAG_VERBOSE)
1858 para_printf(&tad->pb, "%s: num_played = %u, "
1859 "last_played = now()\n", name,
1860 new_afsi.num_played);
1861 } else {
1862 if (tad->cto->flags & TOUCH_FLAG_VERBOSE)
1863 para_printf(&tad->pb, "touching %s\n", name);
1864 if (tad->cto->lyrics_id >= 0)
1865 new_afsi.lyrics_id = tad->cto->lyrics_id;
1866 if (tad->cto->image_id >= 0)
1867 new_afsi.image_id = tad->cto->image_id;
1868 if (tad->cto->num_played >= 0)
1869 new_afsi.num_played = tad->cto->num_played;
1870 if (tad->cto->last_played >= 0)
1871 new_afsi.last_played = tad->cto->last_played;
1872 }
1873 save_afsi(&new_afsi, &obj); /* in-place update */
1874 aced.aft_row = row;
1875 aced.old_afsi = &old_afsi;
1876 afs_event(AFSI_CHANGE, &tad->pb, &aced);
1877 return 1;
1878 }
1879
1880 static int com_touch_callback(const struct osl_object *query,
1881 struct osl_object *result)
1882 {
1883 struct touch_action_data tad = {.cto = query->data};
1884 int ret;
1885 struct pattern_match_data pmd = {
1886 .table = audio_file_table,
1887 .loop_col_num = AFTCOL_HASH,
1888 .match_col_num = AFTCOL_PATH,
1889 .patterns = {.data = (char *)query->data + sizeof(*tad.cto),
1890 .size = query->size - sizeof(*tad.cto)},
1891 .data = &tad,
1892 .action = touch_audio_file
1893 };
1894 if (tad.cto->flags & TOUCH_FLAG_FNM_PATHNAME)
1895 pmd.fnmatch_flags |= FNM_PATHNAME;
1896 ret = for_each_matching_row(&pmd);
1897 if (ret < 0)
1898 para_printf(&tad.pb, "%s\n", PARA_STRERROR(-ret));
1899 if (tad.pb.buf) {
1900 result->data = tad.pb.buf;
1901 result->size = tad.pb.size;
1902 return 1;
1903 }
1904 return ret < 0? ret : 0;
1905 }
1906
1907 int com_touch(int fd, int argc, char * const * const argv)
1908 {
1909 struct com_touch_options cto = {
1910 .num_played = -1,
1911 .last_played = -1,
1912 .lyrics_id = -1,
1913 .image_id = -1
1914 };
1915 struct osl_object query = {.data = &cto, .size = sizeof(cto)},
1916 result;
1917 int i, ret;
1918
1919
1920 for (i = 1; i < argc; i++) {
1921 const char *arg = argv[i];
1922 if (arg[0] != '-')
1923 break;
1924 if (!strcmp(arg, "--")) {
1925 i++;
1926 break;
1927 }
1928 if (!strncmp(arg, "-n", 2)) {
1929 ret = para_atoi32(arg + 2, &cto.num_played);
1930 if (ret < 0)
1931 return ret;
1932 continue;
1933 }
1934 if (!strncmp(arg, "-l", 2)) {
1935 ret = para_atoi64(arg + 2, &cto.last_played);
1936 if (ret < 0)
1937 return ret;
1938 continue;
1939 }
1940 if (!strncmp(arg, "-y", 2)) {
1941 ret = para_atoi32(arg + 2, &cto.lyrics_id);
1942 if (ret < 0)
1943 return ret;
1944 continue;
1945 }
1946 if (!strncmp(arg, "-i", 2)) {
1947 ret = para_atoi32(arg + 2, &cto.image_id);
1948 if (ret < 0)
1949 return ret;
1950 continue;
1951 }
1952 if (!strcmp(arg, "-p")) {
1953 cto.flags |= TOUCH_FLAG_FNM_PATHNAME;
1954 continue;
1955 }
1956 if (!strcmp(arg, "-v")) {
1957 cto.flags |= TOUCH_FLAG_VERBOSE;
1958 continue;
1959 }
1960 break; /* non-option starting with dash */
1961 }
1962 if (i >= argc)
1963 return -E_AFT_SYNTAX;
1964 ret = send_option_arg_callback_request(&query, argc - i,
1965 argv + i, com_touch_callback, &result);
1966 if (ret > 0) {
1967 send_buffer(fd, (char *)result.data);
1968 free(result.data);
1969 } else if (ret < 0)
1970 send_va_buffer(fd, "%s\n", PARA_STRERROR(-ret));
1971 return ret;
1972 }
1973
1974 /** Flags for com_rm(). */
1975 enum rm_flags {
1976 /** -v */
1977 RM_FLAG_VERBOSE = 1,
1978 /** -f */
1979 RM_FLAG_FORCE = 2,
1980 /** -p */
1981 RM_FLAG_FNM_PATHNAME = 4
1982 };
1983
1984 /** Data passed to the action handler of com_rm(). */
1985 struct com_rm_action_data {
1986 /** Command line flags ((see \ref rm_flags). */
1987 uint32_t flags;
1988 /** Message buffer. */
1989 struct para_buffer pb;
1990 /** Number of audio files removed. */
1991 unsigned num_removed;
1992 };
1993
1994 static int remove_audio_file(__a_unused struct osl_table *table,
1995 struct osl_row *row, const char *name, void *data)
1996 {
1997 struct com_rm_action_data *crd = data;
1998 int ret;
1999
2000 if (crd->flags & RM_FLAG_VERBOSE)
2001 para_printf(&crd->pb, "removing %s\n", name);
2002 afs_event(AUDIO_FILE_REMOVE, &crd->pb, row);
2003 ret = osl_del_row(audio_file_table, row);
2004 if (ret < 0)
2005 para_printf(&crd->pb, "%s: %s\n", name, PARA_STRERROR(-ret));
2006 else
2007 crd->num_removed++;
2008 return 1;
2009 }
2010
2011 static int com_rm_callback(const struct osl_object *query,
2012 __a_unused struct osl_object *result)
2013 {
2014 struct com_rm_action_data crd = {.flags = *(uint32_t *)query->data};
2015 int ret;
2016 struct pattern_match_data pmd = {
2017 .table = audio_file_table,
2018 .loop_col_num = AFTCOL_HASH,
2019 .match_col_num = AFTCOL_PATH,
2020 .patterns = {.data = (char *)query->data + sizeof(uint32_t),
2021 .size = query->size - sizeof(uint32_t)},
2022 .data = &crd,
2023 .action = remove_audio_file
2024 };
2025 if (crd.flags & RM_FLAG_FNM_PATHNAME)
2026 pmd.fnmatch_flags |= FNM_PATHNAME;
2027 ret = for_each_matching_row(&pmd);
2028 if (ret < 0)
2029 para_printf(&crd.pb, "%s\n", PARA_STRERROR(-ret));
2030 if (!crd.num_removed && !(crd.flags & RM_FLAG_FORCE))
2031 para_printf(&crd.pb, "no matches -- nothing removed\n");
2032 else {
2033 if (crd.flags & RM_FLAG_VERBOSE)
2034 para_printf(&crd.pb, "removed %u files\n", crd.num_removed);
2035 }
2036 if (crd.pb.buf) {
2037 result->data = crd.pb.buf;
2038 result->size = crd.pb.size;
2039 return 1;
2040 }
2041 return ret < 0? ret : 0;
2042 }
2043
2044 /* TODO options: -r (recursive) */
2045 int com_rm(int fd, int argc, char * const * const argv)
2046 {
2047 uint32_t flags = 0;
2048 struct osl_object query = {.data = &flags, .size = sizeof(flags)},
2049 result;
2050 int i, ret;
2051
2052 for (i = 1; i < argc; i++) {
2053 const char *arg = argv[i];
2054 if (arg[0] != '-')
2055 break;
2056 if (!strcmp(arg, "--")) {
2057 i++;
2058 break;
2059 }
2060 if (!strcmp(arg, "-f")) {
2061 flags |= RM_FLAG_FORCE;
2062 continue;
2063 }
2064 if (!strcmp(arg, "-p")) {
2065 flags |= RM_FLAG_FNM_PATHNAME;
2066 continue;
2067 }
2068 if (!strcmp(arg, "-v")) {
2069 flags |= RM_FLAG_VERBOSE;
2070 continue;
2071 }
2072 break;
2073 }
2074 if (i >= argc)
2075 return -E_AFT_SYNTAX;
2076 ret = send_option_arg_callback_request(&query, argc - i, argv + i,
2077 com_rm_callback, &result);
2078 if (ret > 0) {
2079 send_buffer(fd, (char *)result.data);
2080 free(result.data);
2081 } else if (ret < 0)
2082 send_va_buffer(fd, "%s\n", PARA_STRERROR(-ret));
2083 return ret;
2084 }
2085
2086 /**
2087 * Flags used by the cpsi command.
2088 *
2089 * \sa com_cpsi().
2090 */
2091 enum cpsi_flags {
2092 /** Whether the lyrics id should be copied. */
2093 CPSI_FLAG_COPY_LYRICS_ID = 1,
2094 /** Whether the image id should be copied. */
2095 CPSI_FLAG_COPY_IMAGE_ID = 2,
2096 /** Whether the lastplayed time should be copied. */
2097 CPSI_FLAG_COPY_LASTPLAYED = 4,
2098 /** Whether the numplayed count should be copied. */
2099 CPSI_FLAG_COPY_NUMPLAYED = 8,
2100 /** Whether the attributes should be copied. */
2101 CPSI_FLAG_COPY_ATTRIBUTES = 16,
2102 /** Activates verbose mode. */
2103 CPSI_FLAG_VERBOSE = 32,
2104 };
2105
2106 /** Data passed to the action handler of com_cpsi(). */
2107 struct cpsi_action_data {
2108 /** command line flags (see \ref cpsi_flags). */
2109 unsigned flags;
2110 /** Number of audio files changed. */
2111 unsigned num_copied;
2112 /** Message buffer. */
2113 struct para_buffer pb;
2114 /** Values are copied from here. */
2115 struct afs_info source_afsi;
2116 };
2117
2118 static int copy_selector_info(__a_unused struct osl_table *table,
2119 struct osl_row *row, const char *name, void *data)
2120 {
2121 struct cpsi_action_data *cad = data;
2122 struct osl_object target_afsi_obj;
2123 int ret;
2124 struct afs_info old_afsi, target_afsi;
2125 struct afsi_change_event_data aced;
2126
2127 ret = get_afsi_object_of_row(row, &target_afsi_obj);
2128 if (ret < 0)
2129 return ret;
2130 load_afsi(&target_afsi, &target_afsi_obj);
2131 old_afsi = target_afsi;
2132 if (cad->flags & CPSI_FLAG_COPY_LYRICS_ID)
2133 target_afsi.lyrics_id = cad->source_afsi.lyrics_id;
2134 if (cad->flags & CPSI_FLAG_COPY_IMAGE_ID)
2135 target_afsi.image_id = cad->source_afsi.image_id;
2136 if (cad->flags & CPSI_FLAG_COPY_LASTPLAYED)
2137 target_afsi.last_played = cad->source_afsi.last_played;
2138 if (cad->flags & CPSI_FLAG_COPY_NUMPLAYED)
2139 target_afsi.num_played = cad->source_afsi.num_played;
2140 if (cad->flags & CPSI_FLAG_COPY_ATTRIBUTES)
2141 target_afsi.attributes = cad->source_afsi.attributes;
2142 save_afsi(&target_afsi, &target_afsi_obj); /* in-place update */
2143 cad->num_copied++;
2144 if (cad->flags & CPSI_FLAG_VERBOSE)
2145 para_printf(&cad->pb, "copied afsi to %s\n", name);
2146 aced.aft_row = row;
2147 aced.old_afsi = &old_afsi;
2148 afs_event(AFSI_CHANGE, &cad->pb, &aced);
2149 return 1;
2150 }
2151
2152 static int com_cpsi_callback(const struct osl_object *query,
2153 struct osl_object *result)
2154 {
2155 struct cpsi_action_data cad = {.flags = *(unsigned *)query->data};
2156 int ret;
2157 char *source_path = (char *)query->data + sizeof(cad.flags);
2158
2159 ret = get_afsi_of_path(source_path, &cad.source_afsi);
2160 if (ret < 0)
2161 goto out;
2162 struct pattern_match_data pmd = {
2163 .table = audio_file_table,
2164 .loop_col_num = AFTCOL_HASH,
2165 .match_col_num = AFTCOL_PATH,
2166 .patterns = {.data = source_path + strlen(source_path) + 1,
2167 .size = query->size - sizeof(cad.flags)
2168 - strlen(source_path) - 1},
2169 .data = &cad,
2170 .action = copy_selector_info
2171 };
2172 ret = for_each_matching_row(&pmd);
2173 out:
2174 if (ret < 0)
2175 para_printf(&cad.pb, "%s\n", PARA_STRERROR(-ret));
2176 if (cad.flags & CPSI_FLAG_VERBOSE) {
2177 if (cad.num_copied)
2178 para_printf(&cad.pb, "copied requested afsi from %s "
2179 "to %u files\n",
2180 source_path, cad.num_copied);
2181 else
2182 para_printf(&cad.pb, "nothing copied\n");
2183 }
2184 if (cad.pb.buf) {
2185 result->data = cad.pb.buf;
2186 result->size = cad.pb.size;
2187 return 1;
2188 }
2189 return ret < 0? ret : 0;
2190 }
2191
2192 int com_cpsi(int fd, int argc, char * const * const argv)
2193 {
2194 unsigned flags = 0;
2195 int i, ret;
2196 struct osl_object options = {.data = &flags, .size = sizeof(flags)},
2197 result;
2198
2199 for (i = 1; i < argc; i++) {
2200 const char *arg = argv[i];
2201 if (arg[0] != '-')
2202 break;
2203 if (!strcmp(arg, "--")) {
2204 i++;
2205 break;
2206 }
2207 if (!strcmp(arg, "-y")) {
2208 flags |= CPSI_FLAG_COPY_LYRICS_ID;
2209 continue;
2210 }
2211 if (!strcmp(arg, "-i")) {
2212 flags |= CPSI_FLAG_COPY_IMAGE_ID;
2213 continue;
2214 }
2215 if (!strcmp(arg, "-l")) {
2216 flags |= CPSI_FLAG_COPY_LASTPLAYED;
2217 continue;
2218 }
2219 if (!strcmp(arg, "-n")) {
2220 flags |= CPSI_FLAG_COPY_NUMPLAYED;
2221 continue;
2222 }
2223 if (!strcmp(arg, "-a")) {
2224 flags |= CPSI_FLAG_COPY_ATTRIBUTES;
2225 continue;
2226 }
2227 if (!strcmp(arg, "-v")) {
2228 flags |= CPSI_FLAG_VERBOSE;
2229 continue;
2230 }
2231 break;
2232 }
2233 if (i + 1 >= argc) /* need at least souce file and pattern */
2234 return -E_AFT_SYNTAX;
2235 if (!(flags & ~CPSI_FLAG_VERBOSE)) /* no copy flags given */
2236 flags = ~(unsigned)CPSI_FLAG_VERBOSE | flags;
2237 ret = send_option_arg_callback_request(&options, argc - i, argv + i,
2238 com_cpsi_callback, &result);
2239 if (ret > 0) {
2240 send_buffer(fd, (char *)result.data);
2241 free(result.data);
2242 } else
2243 send_va_buffer(fd, "%s\n", PARA_STRERROR(-ret));
2244 return ret;
2245 }
2246
2247 /* TODO: optionally fix problems by removing offending rows */
2248 static int check_audio_file(struct osl_row *row, void *data)
2249 {
2250 char *path;
2251 struct para_buffer *pb = data;
2252 struct stat statbuf;
2253 int ret = get_audio_file_path_of_row(row, &path);
2254 struct afs_info afsi;
2255 char *blob_name;
2256
2257 if (ret < 0) {
2258 para_printf(pb, "%s\n", PARA_STRERROR(-ret));
2259 return 1;
2260 }
2261 if (stat(path, &statbuf) < 0)
2262 para_printf(pb, "%s: stat error (%s)\n", path, strerror(errno));
2263 else {
2264 if (!S_ISREG(statbuf.st_mode))
2265 para_printf(pb, "%s: not a regular file\n", path);
2266 }
2267 ret = get_afsi_of_row(row, &afsi);
2268 if (ret < 0) {
2269 para_printf(pb, "%s: %s\n", path, PARA_STRERROR(-ret));
2270 return 1;
2271 }
2272 ret = lyr_get_name_by_id(afsi.lyrics_id, &blob_name);
2273 if (ret < 0)
2274 para_printf(pb, "%s lyrics id %u: %s\n", path, afsi.lyrics_id,
2275 PARA_STRERROR(-ret));
2276 ret = img_get_name_by_id(afsi.image_id, &blob_name);
2277 if (ret < 0)
2278 para_printf(pb, "%s image id %u: %s\n", path, afsi.image_id,
2279 PARA_STRERROR(-ret));
2280 return 1;
2281 }
2282
2283 /**
2284 * Check the audio file table for inconsistencies.
2285 *
2286 * \param query Unused.
2287 * \param result Contains message string upon return.
2288 *
2289 * This function always succeeds.
2290 *
2291 * \sa com_check().
2292 */
2293 int aft_check_callback(__a_unused const struct osl_object *query, struct osl_object *result)
2294 {
2295 struct para_buffer pb = {.buf = NULL};
2296
2297 para_printf(&pb, "checking audio file table...\n");
2298 audio_file_loop(&pb, check_audio_file);
2299 result->data = pb.buf;
2300 result->size = pb.size;
2301 return 1;
2302
2303 }
2304
2305 /**
2306 * Close the audio file table.
2307 *
2308 * \param flags Usual flags that are passed to osl_close_table().
2309 *
2310 * \sa osl_close_table().
2311 */
2312 static void aft_close(void)
2313 {
2314 osl_close_table(audio_file_table, OSL_MARK_CLEAN);
2315 audio_file_table = NULL;
2316 }
2317
2318 /**
2319 * Open the audio file table.
2320 *
2321 * \param dir The database directory.
2322 *
2323 * \return Standard.
2324 *
2325 * \sa osl_open_table().
2326 */
2327 static int aft_open(const char *dir)
2328 {
2329 int ret;
2330
2331 audio_file_table_desc.dir = dir;
2332 ret = osl_open_table(&audio_file_table_desc, &audio_file_table);
2333 if (ret >= 0) {
2334 unsigned num;
2335 osl_get_num_rows(audio_file_table, &num);
2336 PARA_INFO_LOG("audio file table contains %d files\n", num);
2337 return ret;
2338 }
2339 PARA_INFO_LOG("failed to open audio file table\n");
2340 audio_file_table = NULL;
2341 if (ret >= 0 || is_errno(-ret, ENOENT))
2342 return 1;
2343 return ret;
2344 }
2345
2346 static int aft_create(const char *dir)
2347 {
2348 audio_file_table_desc.dir = dir;
2349 return osl_create_table(&audio_file_table_desc);
2350 }
2351
2352 static int clear_attribute(struct osl_row *row, void *data)
2353 {
2354 struct rmatt_event_data *red = data;
2355 struct afs_info afsi;
2356 struct osl_object obj;
2357 int ret = get_afsi_object_of_row(row, &obj);
2358 uint64_t mask = ~(1ULL << red->bitnum);
2359
2360 if (ret < 0)
2361 return ret;
2362 ret = load_afsi(&afsi, &obj);
2363 if (ret < 0)
2364 return ret;
2365 afsi.attributes &= mask;
2366 save_afsi(&afsi, &obj);
2367 return 1;
2368 }
2369
2370 static int aft_event_handler(enum afs_events event, struct para_buffer *pb,
2371 void *data)
2372 {
2373 switch(event) {
2374 case ATTRIBUTE_REMOVE: {
2375 const struct rmatt_event_data *red = data;
2376 para_printf(pb, "clearing attribute %s (bit %u) from all "
2377 "entries in the audio file table\n", red->name,
2378 red->bitnum);
2379 return audio_file_loop(data, clear_attribute);
2380 }
2381 default:
2382 return 1;
2383 }
2384 }
2385
2386 void aft_init(struct afs_table *t)
2387 {
2388 t->name = audio_file_table_desc.name;
2389 t->open = aft_open;
2390 t->close = aft_close;
2391 t->create = aft_create;
2392 t->event_handler = aft_event_handler;
2393 }