Cosmetics.
[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 /** The total number of chunks (4 bytes). */
317 CHUNKS_TOTAL_OFFSET = 20,
318 /** The length of the audio file header (4 bytes). */
319 HEADER_LEN_OFFSET = 24,
320 /** The start of the audio file header (4 bytes). */
321 HEADER_OFFSET_OFFSET = 28,
322 /** The seconds part of the chunk time (4 bytes). */
323 CHUNK_TV_TV_SEC_OFFSET = 32,
324 /** The microseconds part of the chunk time (4 bytes). */
325 CHUNK_TV_TV_USEC_OFFSET = 36,
326 /** Number of channels is stored here. (1 byte) */
327 AFHI_CHANNELS_OFFSET = 40,
328 /** EOF timeout in ms. (2 byte) */
329 AFHI_EOF_OFFSET = 41,
330 /** The tag info position. */
331 AFHI_INFO_STRING_OFFSET = 43,
332 /** Minimal on-disk size of a valid afhi struct. */
333 MIN_AFHI_SIZE = 44
334 };
335
336 static unsigned sizeof_afhi_buf(const struct afh_info *afhi)
337 {
338 if (!afhi)
339 return 0;
340 return strlen(afhi->info_string) + MIN_AFHI_SIZE;
341 }
342
343 static void save_afhi(struct afh_info *afhi, char *buf)
344 {
345 if (!afhi)
346 return;
347 write_u32(buf + AFHI_SECONDS_TOTAL_OFFSET, afhi->seconds_total);
348 write_u32(buf + AFHI_BITRATE_OFFSET, afhi->bitrate);
349 write_u32(buf + AFHI_FREQUENCY_OFFSET, afhi->frequency);
350 write_u32(buf + AFHI_HEADER_OFFSET_OFFSET, afhi->header_offset);
351 write_u32(buf + AFHI_HEADER_LEN_OFFSET, afhi->header_len);
352 write_u8(buf + AFHI_CHANNELS_OFFSET, afhi->channels);
353 write_u32(buf + CHUNKS_TOTAL_OFFSET, afhi->chunks_total);
354 write_u32(buf + HEADER_LEN_OFFSET, afhi->header_len);
355 write_u32(buf + HEADER_OFFSET_OFFSET, afhi->header_offset);
356 write_u32(buf + CHUNK_TV_TV_SEC_OFFSET, afhi->chunk_tv.tv_sec);
357 write_u32(buf + CHUNK_TV_TV_USEC_OFFSET, afhi->chunk_tv.tv_usec);
358 write_u16(buf + AFHI_EOF_OFFSET, tv2ms(&afhi->eof_tv));
359 strcpy(buf + AFHI_INFO_STRING_OFFSET, afhi->info_string); /* OK */
360 }
361
362 static void load_afhi(const char *buf, struct afh_info *afhi)
363 {
364 afhi->seconds_total = read_u32(buf + AFHI_SECONDS_TOTAL_OFFSET);
365 afhi->bitrate = read_u32(buf + AFHI_BITRATE_OFFSET);
366 afhi->frequency = read_u32(buf + AFHI_FREQUENCY_OFFSET);
367 afhi->header_offset = read_u32(buf + AFHI_HEADER_OFFSET_OFFSET);
368 afhi->header_len = read_u32(buf + AFHI_HEADER_LEN_OFFSET);
369 afhi->channels = read_u8(buf + AFHI_CHANNELS_OFFSET);
370 afhi->chunks_total = read_u32(buf + CHUNKS_TOTAL_OFFSET);
371 afhi->header_len = read_u32(buf + HEADER_LEN_OFFSET);
372 afhi->header_offset = read_u32(buf + HEADER_OFFSET_OFFSET);
373 afhi->chunk_tv.tv_sec = read_u32(buf + CHUNK_TV_TV_SEC_OFFSET);
374 afhi->chunk_tv.tv_usec = read_u32(buf + CHUNK_TV_TV_USEC_OFFSET);
375 ms2tv(read_u16(buf + AFHI_EOF_OFFSET), &afhi->eof_tv);
376 strcpy(afhi->info_string, buf + AFHI_INFO_STRING_OFFSET);
377 }
378
379 static unsigned sizeof_chunk_table(struct afh_info *afhi)
380 {
381 if (!afhi)
382 return 0;
383 return 4 * (afhi->chunks_total + 1);
384 }
385
386 static void save_chunk_table(struct afh_info *afhi, char *buf)
387 {
388 int i;
389
390 for (i = 0; i <= afhi->chunks_total; i++)
391 write_u32(buf + 4 * i, afhi->chunk_table[i]);
392 }
393
394 static void load_chunk_table(struct afh_info *afhi, char *buf)
395 {
396 int i;
397
398 afhi->chunk_table = para_malloc(sizeof_chunk_table(afhi));
399 for (i = 0; i <= afhi->chunks_total; i++)
400 afhi->chunk_table[i] = read_u32(buf + 4 * i);
401 }
402
403 /**
404 * Get the row of the audio file table corresponding to the given path.
405 *
406 * \param path The full path of the audio file.
407 * \param row Result pointer.
408 *
409 * \return The return value of the underlying call to osl_get_row().
410 */
411 int aft_get_row_of_path(const char *path, struct osl_row **row)
412 {
413 struct osl_object obj = {.data = (char *)path, .size = strlen(path) + 1};
414
415 return osl_get_row(audio_file_table, AFTCOL_PATH, &obj, row);
416 }
417
418 /**
419 * Get the row of the audio file table corresponding to the given hash value.
420 *
421 * \param hash The hash value of the desired audio file.
422 * \param row resul pointer.
423 *
424 * \return The return value of the underlying call to osl_get_row().
425 */
426 int aft_get_row_of_hash(HASH_TYPE *hash, struct osl_row **row)
427 {
428 const struct osl_object obj = {.data = hash, .size = HASH_SIZE};
429 return osl_get_row(audio_file_table, AFTCOL_HASH, &obj, row);
430 }
431
432 /**
433 * Get the osl object holding the audio file selector info of a row.
434 *
435 * \param row Pointer to a row in the audio file table.
436 * \param obj Result pointer.
437 *
438 * \return The return value of the underlying call to osl_get_object().
439 */
440 int get_afsi_object_of_row(const struct osl_row *row, struct osl_object *obj)
441 {
442 return osl_get_object(audio_file_table, row, AFTCOL_AFSI, obj);
443 }
444
445 /**
446 * Get the osl object holding the audio file selector info, given a path.
447 *
448 *
449 * \param path The full path of the audio file.
450 * \param obj Result pointer.
451 *
452 * \return Positive on success, negative on errors.
453 */
454 int get_afsi_object_of_path(const char *path, struct osl_object *obj)
455 {
456 struct osl_row *row;
457 int ret = aft_get_row_of_path(path, &row);
458 if (ret < 0)
459 return ret;
460 return get_afsi_object_of_row(row, obj);
461 }
462
463 /**
464 * Get the audio file selector info, given a row of the audio file table.
465 *
466 * \param row Pointer to a row in the audio file table.
467 * \param afsi Result pointer.
468 *
469 * \return Positive on success, negative on errors.
470 */
471 int get_afsi_of_row(const struct osl_row *row, struct afs_info *afsi)
472 {
473 struct osl_object obj;
474 int ret = get_afsi_object_of_row(row, &obj);
475 if (ret < 0)
476 return ret;
477 return load_afsi(afsi, &obj);
478 }
479
480 /**
481 * Get the audio file selector info, given the path of an audio table.
482 *
483 * \param path The full path of the audio file.
484 * \param afsi Result pointer.
485 *
486 * \return Positive on success, negative on errors.
487 */
488 int get_afsi_of_path(const char *path, struct afs_info *afsi)
489 {
490 struct osl_object obj;
491 int ret = get_afsi_object_of_path(path, &obj);
492 if (ret < 0)
493 return ret;
494 return load_afsi(afsi, &obj);
495 }
496
497 /**
498 * Get the path of an audio file, given a row of the audio file table.
499 *
500 * \param row Pointer to a row in the audio file table.
501 * \param path Result pointer.
502 *
503 * The result is a pointer to mmapped data. The caller must not attempt
504 * to free it.
505 *
506 * \return Standard.
507 */
508 int get_audio_file_path_of_row(const struct osl_row *row, char **path)
509 {
510 struct osl_object path_obj;
511 int ret = osl_get_object(audio_file_table, row, AFTCOL_PATH,
512 &path_obj);
513 if (ret < 0)
514 return ret;
515 *path = path_obj.data;
516 return 1;
517 }
518
519 /**
520 * Get the object containing the hash value of an audio file, given a row.
521 *
522 * \param row Pointer to a row of the audio file table.
523 * \param obj Result pointer.
524 *
525 * \return The return value of the underlying call to osl_get_object().
526 *
527 * \sa get_hash_of_row().
528 */
529 static int get_hash_object_of_aft_row(const struct osl_row *row, struct osl_object *obj)
530 {
531 return osl_get_object(audio_file_table, row, AFTCOL_HASH, obj);
532 }
533
534 /**
535 * Get the hash value of an audio file, given a row of the audio file table.
536 *
537 * \param row Pointer to a row of the audio file table.
538 * \param hash Result pointer.
539 *
540 * \a hash points to mapped data and must not be freed by the caller.
541 *
542 * \return The return value of the underlying call to
543 * get_hash_object_of_aft_row().
544 */
545 static int get_hash_of_row(const struct osl_row *row, HASH_TYPE **hash)
546 {
547 struct osl_object obj;
548 int ret = get_hash_object_of_aft_row(row, &obj);
549
550 if (ret < 0)
551 return ret;
552 *hash = obj.data;
553 return 1;
554 }
555
556 /**
557 * Get the audio format handler info, given a row of the audio file table.
558 *
559 * \param row Pointer to a row of the audio file table.
560 * \param afhi Result pointer.
561 *
562 * \return The return value of the underlying call to osl_get_object().
563 *
564 * \sa get_chunk_table_of_row().
565 */
566 int get_afhi_of_row(const struct osl_row *row, struct afh_info *afhi)
567 {
568 struct osl_object obj;
569 int ret = osl_get_object(audio_file_table, row, AFTCOL_AFHI,
570 &obj);
571 if (ret < 0)
572 return ret;
573 load_afhi(obj.data, afhi);
574 return 1;
575 }
576
577 /* returns shmid on success */
578 static int save_afd(struct audio_file_data *afd)
579 {
580 size_t size = sizeof(*afd) + sizeof_chunk_table(&afd->afhi);
581
582 PARA_DEBUG_LOG("size: %zu\n", size);
583 int shmid, ret = shm_new(size);
584 void *shm_afd;
585 char *buf;
586
587 if (ret < 0)
588 return ret;
589 shmid = ret;
590 ret = shm_attach(shmid, ATTACH_RW, &shm_afd);
591 if (ret < 0)
592 goto err;
593 *(struct audio_file_data *)shm_afd = *afd;
594 buf = shm_afd;
595 buf += sizeof(*afd);
596 save_chunk_table(&afd->afhi, buf);
597 shm_detach(shm_afd);
598 return shmid;
599 err:
600 shm_destroy(shmid);
601 return ret;
602 }
603
604 int load_afd(int shmid, struct audio_file_data *afd)
605 {
606 void *shm_afd;
607 char *buf;
608 int ret;
609
610 ret = shm_attach(shmid, ATTACH_RO, &shm_afd);
611 if (ret < 0)
612 return ret;
613 *afd = *(struct audio_file_data *)shm_afd;
614 buf = shm_afd;
615 buf += sizeof(*afd);
616 load_chunk_table(&afd->afhi, buf);
617 shm_detach(shm_afd);
618 return 1;
619 }
620
621 /**
622 * Mmap the given audio file and update statistics.
623 *
624 * \param aft_row Determines the audio file to be opened and updated.
625 * \param score The score of the audio file.
626 * \param afd Result pointer.
627 *
628 * On success, the numplayed field of the audio file selector info is increased
629 * and the lastplayed time is set to the current time. Finally, the score of
630 * the audio file is updated.
631 *
632 * \return Positive shmid on success, negative on errors.
633 */
634 int open_and_update_audio_file(struct osl_row *aft_row, long score,
635 struct audio_file_data *afd)
636 {
637 HASH_TYPE *aft_hash, file_hash[HASH_SIZE];
638 struct osl_object afsi_obj;
639 struct afs_info old_afsi, new_afsi;
640 int ret = get_hash_of_row(aft_row, &aft_hash);
641 struct afsi_change_event_data aced;
642 struct osl_object map, chunk_table_obj;
643 char *path;
644
645 if (ret < 0)
646 return ret;
647 ret = get_audio_file_path_of_row(aft_row, &path);
648 if (ret < 0)
649 return ret;
650 ret = get_afsi_object_of_row(aft_row, &afsi_obj);
651 if (ret < 0)
652 return ret;
653 ret = load_afsi(&old_afsi, &afsi_obj);
654 if (ret < 0)
655 return ret;
656 ret = get_afhi_of_row(aft_row, &afd->afhi);
657 if (ret < 0)
658 return ret;
659 ret = osl_open_disk_object(audio_file_table, aft_row,
660 AFTCOL_CHUNKS, &chunk_table_obj);
661 if (ret < 0)
662 return ret;
663 ret = mmap_full_file(path, O_RDONLY, &map.data,
664 &map.size, &afd->fd);
665 if (ret < 0)
666 goto err;
667 hash_function(map.data, map.size, file_hash);
668 ret = hash_compare(file_hash, aft_hash);
669 para_munmap(map.data, map.size);
670 if (ret) {
671 ret = -E_HASH_MISMATCH;
672 goto err;
673 }
674 new_afsi = old_afsi;
675 new_afsi.num_played++;
676 new_afsi.last_played = time(NULL);
677 save_afsi(&new_afsi, &afsi_obj); /* in-place update */
678
679 load_chunk_table(&afd->afhi, chunk_table_obj.data);
680 {
681 struct ls_data d = {
682 .afhi = afd->afhi,
683 .afsi = old_afsi,
684 .path = path,
685 .score = score,
686 .hash = file_hash
687 };
688 struct para_buffer pb = {.buf = NULL};
689 ret = make_status_items(&d, &pb);
690 if (ret < 0)
691 goto err;
692 strncpy(afd->verbose_ls_output, pb.buf, VERBOSE_LS_OUTPUT_SIZE);
693 afd->verbose_ls_output[VERBOSE_LS_OUTPUT_SIZE - 1] = '\0';
694 free(pb.buf);
695 }
696 aced.aft_row = aft_row;
697 aced.old_afsi = &old_afsi;
698 afs_event(AFSI_CHANGE, NULL, &aced);
699 ret = save_afd(afd);
700 free(afd->afhi.chunk_table);
701 if (ret < 0)
702 goto err;
703 err:
704 osl_close_disk_object(&chunk_table_obj);
705 return ret;
706 }
707
708 static int get_local_time(uint64_t *seconds, char *buf, size_t size,
709 time_t current_time, enum ls_listing_mode lm)
710 {
711 struct tm t;
712
713 if (!localtime_r((time_t *)seconds, &t))
714 return -E_LOCALTIME;
715 if (lm == LS_MODE_MBOX) {
716 if (!strftime(buf, size, "%c", &t))
717 return -E_STRFTIME;
718 return 1;
719 }
720 if (*seconds + 6 * 30 * 24 * 3600 > current_time) {
721 if (!strftime(buf, size, "%b %e %k:%M", &t))
722 return -E_STRFTIME;
723 return 1;
724 }
725 if (!strftime(buf, size, "%b %e %Y", &t))
726 return -E_STRFTIME;
727 return 1;
728 }
729
730 /** Compute the number of (decimal) digits of a number. */
731 #define GET_NUM_DIGITS(x, num) { \
732 typeof((x)) _tmp = PARA_ABS(x); \
733 *num = 1; \
734 if ((x)) \
735 while ((_tmp) > 9) { \
736 (_tmp) /= 10; \
737 (*num)++; \
738 } \
739 }
740
741 static short unsigned get_duration_width(int seconds)
742 {
743 short unsigned width;
744 unsigned hours = seconds / 3600, mins = (seconds % 3600) / 60;
745
746 if (!hours) /* less than one hour => m:ss or mm:ss => 4 or 5 digits */
747 return 4 + (mins > 9);
748 /* more than one hour => h:mm:ss, hh:mm:ss, hhh:mm:ss, ... */
749 GET_NUM_DIGITS(hours, &width);
750 return width + 6;
751 }
752
753 static void get_duration_buf(int seconds, char *buf, struct ls_options *opts)
754 {
755 unsigned hours = seconds / 3600, mins = (seconds % 3600) / 60;
756 short unsigned max_width;
757
758 if (!hours) { /* m:ss or mm:ss */
759 max_width = opts->mode == LS_MODE_LONG?
760 opts->widths.duration_width : 4;
761 sprintf(buf, "%*u:%02u", max_width - 3, mins, seconds % 60);
762 } else { /* more than one hour => h:mm:ss, hh:mm:ss, hhh:mm:ss, ... */
763 max_width = opts->mode == LS_MODE_LONG?
764 opts->widths.duration_width : 7;
765 sprintf(buf, "%*u:%02u:%02u", max_width - 6, hours, mins,
766 seconds % 60);
767 }
768 }
769
770 static char *make_attribute_lines(const char *att_bitmap, struct afs_info *afsi)
771 {
772 char *att_text, *att_lines;
773
774 get_attribute_text(&afsi->attributes, " ", &att_text);
775 if (!att_text)
776 return para_strdup(att_bitmap);
777 att_lines = make_message("%s: %s\n%s: %s",
778 status_item_list[SI_ATTRIBUTES_BITMAP], att_bitmap,
779 status_item_list[SI_ATTRIBUTES_TXT], att_text);
780 free(att_text);
781 return att_lines;
782 }
783
784 static char *make_lyrics_lines(struct afs_info *afsi)
785 {
786 char *lyrics_name;
787
788 lyr_get_name_by_id(afsi->lyrics_id, &lyrics_name);
789 return make_message("%s: %u\n%s: %s\n",
790 status_item_list[SI_LYRICS_ID], afsi->lyrics_id,
791 status_item_list[SI_LYRICS_NAME], lyrics_name?
792 lyrics_name : "(none)");
793 }
794
795 static char *make_image_lines(struct afs_info *afsi)
796 {
797 char *image_name;
798 img_get_name_by_id(afsi->image_id, &image_name);
799 return make_message("%s: %u\n%s: %s\n",
800 status_item_list[SI_IMAGE_ID], afsi->image_id,
801 status_item_list[SI_IMAGE_NAME], image_name?
802 image_name : "(none)");
803 }
804
805 static char *make_filename_lines(const char *path, unsigned flags)
806 {
807 char *basename, *dirname;
808 char *ret;
809
810 if (!(flags & LS_FLAG_FULL_PATH))
811 return make_message("%s: %s\n",
812 status_item_list[SI_BASENAME], path);
813 basename = para_basename(path),
814 dirname = para_dirname(path);
815 ret = make_message("%s: %s\n%s: %s\n%s: %s\n",
816 status_item_list[SI_PATH], path,
817 status_item_list[SI_DIRECTORY], dirname,
818 status_item_list[SI_BASENAME], basename);
819 free(basename);
820 free(dirname);
821 return ret;
822 }
823
824 static int print_list_item(struct ls_data *d, struct ls_options *opts,
825 struct para_buffer *b, time_t current_time)
826 {
827 int ret;
828 char att_buf[65];
829 char last_played_time[30];
830 char duration_buf[30]; /* nobody has an audio file long enough to overflow this */
831 char score_buf[30] = "";
832 struct afs_info *afsi = &d->afsi;
833 struct afh_info *afhi = &d->afhi;
834 struct ls_widths *w = &opts->widths;
835 int have_score = opts->flags & LS_FLAG_ADMISSIBLE_ONLY;
836 char asc_hash[2 * HASH_SIZE + 1];
837 char *att_lines, *lyrics_lines, *image_lines, *filename_lines;
838
839 if (opts->mode == LS_MODE_SHORT) {
840 para_printf(b, "%s\n", d->path);
841 return 1;
842 }
843 get_attribute_bitmap(&afsi->attributes, att_buf);
844 ret = get_local_time(&afsi->last_played, last_played_time,
845 sizeof(last_played_time), current_time, opts->mode);
846 if (ret < 0)
847 return ret;
848 get_duration_buf(afhi->seconds_total, duration_buf, opts);
849 if (have_score) {
850 if (opts->mode == LS_MODE_LONG)
851 sprintf(score_buf, "%*li ", w->score_width, d->score);
852 else
853 sprintf(score_buf, "%li ", d->score);
854 }
855
856 if (opts->mode == LS_MODE_LONG) {
857 para_printf(b,
858 "%s" /* score */
859 "%s " /* attributes */
860 "%*d " /* image_id */
861 "%*d " /* lyrics_id */
862 "%*d " /* bitrate */
863 "%s " /* audio format */
864 "%*d " /* frequency */
865 "%d " /* channels */
866 "%s " /* duration */
867 "%*d " /* num_played */
868 "%s " /* last_played */
869 "%s\n", /* path */
870 score_buf,
871 att_buf,
872 w->image_id_width, afsi->image_id,
873 w->lyrics_id_width, afsi->lyrics_id,
874 w->bitrate_width, afhi->bitrate,
875 audio_format_name(afsi->audio_format_id),
876 w->frequency_width, afhi->frequency,
877 afhi->channels,
878 duration_buf,
879 w->num_played_width, afsi->num_played,
880 last_played_time,
881 d->path
882 );
883 return 1;
884 }
885 hash_to_asc(d->hash, asc_hash);
886 att_lines = make_attribute_lines(att_buf, afsi);
887 lyrics_lines = make_lyrics_lines(afsi);
888 image_lines = make_image_lines(afsi);
889 filename_lines = make_filename_lines(d->path, opts->flags);
890 if (opts->mode == LS_MODE_MBOX)
891 para_printf(b,
892 "From foo@localhost %s\n"
893 "Received: from\nTo: bar\nFrom: a\n"
894 "Subject: %s\n\n",
895 last_played_time,
896 d->path);
897 para_printf(b,
898 "%s" /* filename stuff */
899 "%s%s%s%s" /* score */
900 "%s\n" /* attributes */
901 "%s: %s\n" /* hash */
902 "%s" /* image id, image name */
903 "%s" /* lyrics */
904 "%s: %dkbit/s\n" /* bitrate */
905 "%s: %s\n" /* format */
906 "%s: %dHz\n" /* frequency */
907 "%s: %d\n" /* channels */
908 "%s: %s\n" /* duration */
909 "%s: %lu\n" /* seconds total */
910 "%s: %s\n" /* last played time */
911 "%s: %d\n" /* num_played */
912 "%s" /* tag info */
913 "%s: %lu\n" /* chunk time */
914 "%s: %lu\n", /* num chunks */
915 filename_lines,
916 have_score? status_item_list[SI_SCORE] : "",
917 have_score? ": " : "",
918 score_buf,
919 have_score? "\n" : "",
920 att_lines,
921 status_item_list[SI_HASH], asc_hash,
922 image_lines,
923 lyrics_lines,
924 status_item_list[SI_BITRATE], afhi->bitrate,
925 status_item_list[SI_FORMAT], audio_format_name(afsi->audio_format_id),
926 status_item_list[SI_FREQUENCY], afhi->frequency,
927 status_item_list[SI_CHANNELS], afhi->channels,
928 status_item_list[SI_DURATION], duration_buf,
929 status_item_list[SI_SECONDS_TOTAL], afhi->seconds_total,
930 status_item_list[SI_LAST_PLAYED], last_played_time,
931 status_item_list[SI_NUM_PLAYED], afsi->num_played,
932 afhi->info_string,
933 status_item_list[SI_CHUNK_TIME], tv2ms(&afhi->chunk_tv),
934 status_item_list[SI_NUM_CHUNKS], afhi->chunks_total
935 );
936 if (opts->mode == LS_MODE_MBOX) {
937 struct osl_object lyrics_def;
938 lyr_get_def_by_id(afsi->lyrics_id, &lyrics_def);
939 if (lyrics_def.data) {
940 para_printf(b, "Lyrics:\n~~~~~~~\n%s",
941 (char *)lyrics_def.data);
942 osl_close_disk_object(&lyrics_def);
943 }
944 }
945 free(att_lines);
946 free(lyrics_lines);
947 free(image_lines);
948 free(filename_lines);
949 return 1;
950 }
951
952 void make_empty_status_items(char *buf)
953 {
954 sprintf(buf,
955 "%s: \n" /* path */
956 "%s: \n" /* dirname */
957 "%s: \n" /* basename */
958 "%s: \n" /* score */
959 "%s: \n" /* attributes bitmap */
960 "%s: \n" /* attributes txt */
961 "%s: \n" /* hash */
962 "%s: \n" /* image id */
963 "%s: \n" /* image name */
964 "%s: \n" /* lyrics id */
965 "%s: \n" /* lyrics name */
966 "%s: \n" /* bitrate */
967 "%s: \n" /* format */
968 "%s: \n" /* frequency */
969 "%s: \n" /* channels */
970 "%s: \n" /* duration */
971 "%s: \n" /* seconds total */
972 "%s: \n" /* num played */
973 "%s: \n" /* last played */
974 ,
975 status_item_list[SI_PATH],
976 status_item_list[SI_DIRECTORY],
977 status_item_list[SI_BASENAME],
978 status_item_list[SI_SCORE],
979 status_item_list[SI_ATTRIBUTES_BITMAP],
980 status_item_list[SI_ATTRIBUTES_TXT],
981 status_item_list[SI_HASH],
982 status_item_list[SI_IMAGE_ID],
983 status_item_list[SI_IMAGE_NAME],
984 status_item_list[SI_LYRICS_ID],
985 status_item_list[SI_LYRICS_NAME],
986 status_item_list[SI_BITRATE],
987 status_item_list[SI_FORMAT],
988 status_item_list[SI_FREQUENCY],
989 status_item_list[SI_CHANNELS],
990 status_item_list[SI_DURATION],
991 status_item_list[SI_SECONDS_TOTAL],
992 status_item_list[SI_NUM_PLAYED],
993 status_item_list[SI_LAST_PLAYED]
994 );
995 }
996
997 int make_status_items(struct ls_data *d, struct para_buffer *pb)
998 {
999 struct ls_options opts = {
1000 .flags = LS_FLAG_FULL_PATH | LS_FLAG_ADMISSIBLE_ONLY,
1001 .mode = LS_MODE_VERBOSE,
1002 };
1003 time_t current_time;
1004
1005 time(&current_time);
1006 return print_list_item(d, &opts, pb, current_time);
1007 }
1008
1009
1010 static int ls_audio_format_compare(const void *a, const void *b)
1011 {
1012 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1013 return NUM_COMPARE(d1->afsi.audio_format_id, d2->afsi.audio_format_id);
1014 }
1015
1016 static int ls_duration_compare(const void *a, const void *b)
1017 {
1018 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1019 return NUM_COMPARE(d1->afhi.seconds_total, d2->afhi.seconds_total);
1020 }
1021
1022 static int ls_bitrate_compare(const void *a, const void *b)
1023 {
1024 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1025 return NUM_COMPARE(d1->afhi.bitrate, d2->afhi.bitrate);
1026 }
1027
1028 static int ls_lyrics_id_compare(const void *a, const void *b)
1029 {
1030 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1031 return NUM_COMPARE(d1->afsi.lyrics_id, d2->afsi.lyrics_id);
1032 }
1033
1034 static int ls_image_id_compare(const void *a, const void *b)
1035 {
1036 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1037 return NUM_COMPARE(d1->afsi.image_id, d2->afsi.image_id);
1038 }
1039
1040 static int ls_channels_compare(const void *a, const void *b)
1041 {
1042 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1043 return NUM_COMPARE(d1->afhi.channels, d2->afhi.channels);
1044 }
1045
1046 static int ls_frequency_compare(const void *a, const void *b)
1047 {
1048 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1049 return NUM_COMPARE(d1->afhi.frequency, d2->afhi.frequency);
1050 }
1051
1052 static int ls_num_played_compare(const void *a, const void *b)
1053 {
1054 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1055 return NUM_COMPARE(d1->afsi.num_played, d2->afsi.num_played);
1056 }
1057
1058 static int ls_last_played_compare(const void *a, const void *b)
1059 {
1060 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1061 return NUM_COMPARE(d1->afsi.last_played, d2->afsi.last_played);
1062 }
1063
1064 static int ls_score_compare(const void *a, const void *b)
1065 {
1066 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1067 return NUM_COMPARE(d1->score, d2->score);
1068 }
1069
1070 static int ls_path_compare(const void *a, const void *b)
1071 {
1072 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1073 return strcmp(d1->path, d2->path);
1074 }
1075
1076 static int sort_matching_paths(struct ls_options *options)
1077 {
1078 size_t nmemb = options->num_matching_paths;
1079 size_t size = sizeof(*options->data_ptr);
1080 int (*compar)(const void *, const void *);
1081 int i;
1082
1083 options->data_ptr = para_malloc(nmemb * sizeof(*options->data_ptr));
1084 for (i = 0; i < nmemb; i++)
1085 options->data_ptr[i] = options->data + i;
1086
1087 /* In these cases the array is already sorted */
1088 if (options->sorting == LS_SORT_BY_PATH
1089 && !(options->flags & LS_FLAG_ADMISSIBLE_ONLY)
1090 && (options->flags & LS_FLAG_FULL_PATH))
1091 return 1;
1092 if (options->sorting == LS_SORT_BY_SCORE &&
1093 options->flags & LS_FLAG_ADMISSIBLE_ONLY)
1094 return 1;
1095
1096 switch (options->sorting) {
1097 case LS_SORT_BY_PATH:
1098 compar = ls_path_compare; break;
1099 case LS_SORT_BY_SCORE:
1100 compar = ls_score_compare; break;
1101 case LS_SORT_BY_LAST_PLAYED:
1102 compar = ls_last_played_compare; break;
1103 case LS_SORT_BY_NUM_PLAYED:
1104 compar = ls_num_played_compare; break;
1105 case LS_SORT_BY_FREQUENCY:
1106 compar = ls_frequency_compare; break;
1107 case LS_SORT_BY_CHANNELS:
1108 compar = ls_channels_compare; break;
1109 case LS_SORT_BY_IMAGE_ID:
1110 compar = ls_image_id_compare; break;
1111 case LS_SORT_BY_LYRICS_ID:
1112 compar = ls_lyrics_id_compare; break;
1113 case LS_SORT_BY_BITRATE:
1114 compar = ls_bitrate_compare; break;
1115 case LS_SORT_BY_DURATION:
1116 compar = ls_duration_compare; break;
1117 case LS_SORT_BY_AUDIO_FORMAT:
1118 compar = ls_audio_format_compare; break;
1119 default:
1120 return -E_BAD_SORT;
1121 }
1122 qsort(options->data_ptr, nmemb, size, compar);
1123 return 1;
1124 }
1125
1126 /* row is either an aft_row or a row of the score table */
1127 /* TODO: Only compute widths if we need them */
1128 static int prepare_ls_row(struct osl_row *row, void *ls_opts)
1129 {
1130 int ret, i;
1131 struct ls_options *options = ls_opts;
1132 struct ls_data *d;
1133 struct ls_widths *w;
1134 unsigned short num_digits;
1135 unsigned tmp;
1136 struct osl_row *aft_row;
1137 long score;
1138 char *path;
1139
1140 if (options->flags & LS_FLAG_ADMISSIBLE_ONLY) {
1141 ret = get_score_and_aft_row(row, &score, &aft_row);
1142 if (ret < 0)
1143 return ret;
1144 } else
1145 aft_row = row;
1146 ret = get_audio_file_path_of_row(aft_row, &path);
1147 if (ret < 0)
1148 return ret;
1149 if (!(options->flags & LS_FLAG_FULL_PATH)) {
1150 char *p = strrchr(path, '/');
1151 if (p)
1152 path = p + 1;
1153 }
1154 if (options->num_patterns) {
1155 for (i = 0; i < options->num_patterns; i++) {
1156 ret = fnmatch(options->patterns[i], path, 0);
1157 if (!ret)
1158 break;
1159 if (ret == FNM_NOMATCH)
1160 continue;
1161 return -E_FNMATCH;
1162 }
1163 if (i >= options->num_patterns) /* no match */
1164 return 1;
1165 }
1166 tmp = options->num_matching_paths++;
1167 if (options->num_matching_paths > options->array_size) {
1168 options->array_size++;
1169 options->array_size *= 2;
1170 options->data = para_realloc(options->data, options->array_size
1171 * sizeof(*options->data));
1172 }
1173 d = options->data + tmp;
1174 ret = get_afsi_of_row(aft_row, &d->afsi);
1175 if (ret < 0)
1176 return ret;
1177 ret = get_afhi_of_row(aft_row, &d->afhi);
1178 if (ret < 0)
1179 return ret;
1180 d->path = path;
1181 ret = get_hash_of_row(aft_row, &d->hash);
1182 if (ret < 0)
1183 return ret;
1184 w = &options->widths;
1185 GET_NUM_DIGITS(d->afsi.image_id, &num_digits);
1186 w->image_id_width = PARA_MAX(w->image_id_width, num_digits);
1187 GET_NUM_DIGITS(d->afsi.lyrics_id, &num_digits);
1188 w->lyrics_id_width = PARA_MAX(w->lyrics_id_width, num_digits);
1189 GET_NUM_DIGITS(d->afhi.bitrate, &num_digits);
1190 w->bitrate_width = PARA_MAX(w->bitrate_width, num_digits);
1191 GET_NUM_DIGITS(d->afhi.frequency, &num_digits);
1192 w->frequency_width = PARA_MAX(w->frequency_width, num_digits);
1193 GET_NUM_DIGITS(d->afsi.num_played, &num_digits);
1194 w->num_played_width = PARA_MAX(w->num_played_width, num_digits);
1195 /* get the number of chars to print this amount of time */
1196 tmp = get_duration_width(d->afhi.seconds_total);
1197 w->duration_width = PARA_MAX(w->duration_width, tmp);
1198 if (options->flags & LS_FLAG_ADMISSIBLE_ONLY) {
1199 GET_NUM_DIGITS(score, &num_digits);
1200 num_digits++; /* add one for the sign (space or "-") */
1201 w->score_width = PARA_MAX(w->score_width, num_digits);
1202 d->score = score;
1203 }
1204 return 1;
1205 }
1206
1207 static int com_ls_callback(const struct osl_object *query,
1208 struct osl_object *ls_output)
1209 {
1210 struct ls_options *opts = query->data;
1211 char *p, *pattern_start = (char *)query->data + sizeof(*opts);
1212 struct para_buffer b = {.buf = NULL, .size = 0};
1213 int i = 0, ret;
1214 time_t current_time;
1215
1216
1217 if (opts->num_patterns) {
1218 opts->patterns = para_malloc(opts->num_patterns * sizeof(char *));
1219 for (i = 0, p = pattern_start; i < opts->num_patterns; i++) {
1220 opts->patterns[i] = p;
1221 p += strlen(p) + 1;
1222 }
1223 } else
1224 opts->patterns = NULL;
1225 if (opts->flags & LS_FLAG_ADMISSIBLE_ONLY)
1226 ret = admissible_file_loop(opts, prepare_ls_row);
1227 else
1228 ret = osl_rbtree_loop(audio_file_table, AFTCOL_PATH, opts,
1229 prepare_ls_row);
1230 if (ret < 0)
1231 goto out;
1232 ret = opts->num_patterns? -E_NO_MATCH : 0;
1233 if (!opts->num_matching_paths)
1234 goto out;
1235 ret = sort_matching_paths(opts);
1236 if (ret < 0)
1237 goto out;
1238 time(&current_time);
1239 if (opts->flags & LS_FLAG_REVERSE)
1240 for (i = opts->num_matching_paths - 1; i >= 0; i--) {
1241 ret = print_list_item(opts->data_ptr[i], opts, &b, current_time);
1242 if (ret < 0)
1243 break;
1244 }
1245 else
1246 for (i = 0; i < opts->num_matching_paths; i++) {
1247 ret = print_list_item(opts->data_ptr[i], opts, &b, current_time);
1248 if (ret < 0)
1249 break;
1250 }
1251 ret = 1;
1252 out:
1253 ls_output->data = b.buf;
1254 ls_output->size = b.size;
1255 free(opts->data);
1256 free(opts->data_ptr);
1257 free(opts->patterns);
1258 return ret;
1259 }
1260
1261 /*
1262 * TODO: flags -h (sort by hash)
1263 */
1264 int com_ls(int fd, int argc, char * const * const argv)
1265 {
1266 int i, ret;
1267 unsigned flags = 0;
1268 enum ls_sorting_method sort = LS_SORT_BY_PATH;
1269 enum ls_listing_mode mode = LS_MODE_SHORT;
1270 struct ls_options opts = {.patterns = NULL};
1271 struct osl_object query = {.data = &opts, .size = sizeof(opts)},
1272 ls_output;
1273
1274 for (i = 1; i < argc; i++) {
1275 const char *arg = argv[i];
1276 if (arg[0] != '-')
1277 break;
1278 if (!strcmp(arg, "--")) {
1279 i++;
1280 break;
1281 }
1282 if (!strncmp(arg, "-l", 2)) {
1283 if (!*(arg + 2)) {
1284 mode = LS_MODE_LONG;
1285 continue;
1286 }
1287 if (*(arg + 3))
1288 return -E_AFT_SYNTAX;
1289 switch(*(arg + 2)) {
1290 case 's':
1291 mode = LS_MODE_SHORT;
1292 continue;
1293 case 'l':
1294 mode = LS_MODE_LONG;
1295 continue;
1296 case 'v':
1297 mode = LS_MODE_VERBOSE;
1298 continue;
1299 case 'm':
1300 mode = LS_MODE_MBOX;
1301 continue;
1302 default:
1303 return -E_AFT_SYNTAX;
1304 }
1305 }
1306 if (!strcmp(arg, "-p")) {
1307 flags |= LS_FLAG_FULL_PATH;
1308 continue;
1309 }
1310 if (!strcmp(arg, "-a")) {
1311 flags |= LS_FLAG_ADMISSIBLE_ONLY;
1312 continue;
1313 }
1314 if (!strcmp(arg, "-r")) {
1315 flags |= LS_FLAG_REVERSE;
1316 continue;
1317 }
1318 if (!strncmp(arg, "-s", 2)) {
1319 if (!*(arg + 2) || *(arg + 3))
1320 return -E_AFT_SYNTAX;
1321 switch(*(arg + 2)) {
1322 case 'p':
1323 sort = LS_SORT_BY_PATH;
1324 continue;
1325 case 's': /* -ss implies -a */
1326 sort = LS_SORT_BY_SCORE;
1327 flags |= LS_FLAG_ADMISSIBLE_ONLY;
1328 continue;
1329 case 'l':
1330 sort = LS_SORT_BY_LAST_PLAYED;
1331 continue;
1332 case 'n':
1333 sort = LS_SORT_BY_NUM_PLAYED;
1334 continue;
1335 case 'f':
1336 sort = LS_SORT_BY_FREQUENCY;
1337 continue;
1338 case 'c':
1339 sort = LS_SORT_BY_CHANNELS;
1340 continue;
1341 case 'i':
1342 sort = LS_SORT_BY_IMAGE_ID;
1343 continue;
1344 case 'y':
1345 sort = LS_SORT_BY_LYRICS_ID;
1346 continue;
1347 case 'b':
1348 sort = LS_SORT_BY_BITRATE;
1349 continue;
1350 case 'd':
1351 sort = LS_SORT_BY_DURATION;
1352 continue;
1353 case 'a':
1354 sort = LS_SORT_BY_AUDIO_FORMAT;
1355 continue;
1356 default:
1357 return -E_AFT_SYNTAX;
1358 }
1359 }
1360 return -E_AFT_SYNTAX;
1361 }
1362 opts.flags = flags;
1363 opts.sorting = sort;
1364 opts.mode = mode;
1365 opts.num_patterns = argc - i;
1366 ret = send_option_arg_callback_request(&query, opts.num_patterns,
1367 argv + i, com_ls_callback, &ls_output);
1368 if (ret > 0) {
1369 ret = send_buffer(fd, (char *)ls_output.data);
1370 free(ls_output.data);
1371 }
1372 return ret;
1373 }
1374
1375 /**
1376 * Call the given function for each file in the audio file table.
1377 *
1378 * \param private_data An arbitrary data pointer, passed to \a func.
1379 * \param func The custom function to be called.
1380 *
1381 * \return The return value of the underlying call to osl_rbtree_loop().
1382 */
1383 int audio_file_loop(void *private_data, osl_rbtree_loop_func *func)
1384 {
1385 return osl_rbtree_loop(audio_file_table, AFTCOL_HASH, private_data,
1386 func);
1387 }
1388
1389 static struct osl_row *find_hash_sister(HASH_TYPE *hash)
1390 {
1391 const struct osl_object obj = {.data = hash, .size = HASH_SIZE};
1392 struct osl_row *row;
1393
1394 osl_get_row(audio_file_table, AFTCOL_HASH, &obj, &row);
1395 return row;
1396 }
1397
1398 enum aft_row_offsets {
1399 AFTROW_AFHI_OFFSET_POS = 0,
1400 AFTROW_CHUNKS_OFFSET_POS = 2,
1401 AFTROW_AUDIO_FORMAT_OFFSET = 4,
1402 AFTROW_FLAGS_OFFSET = 5,
1403 AFTROW_HASH_OFFSET = 9,
1404 AFTROW_PATH_OFFSET = (AFTROW_HASH_OFFSET + HASH_SIZE),
1405 };
1406
1407 /* never save the afsi, as the server knows it too. Note that afhi might be NULL.
1408 * In this case, afhi won't be stored in the buffer */
1409 static void save_audio_file_info(HASH_TYPE *hash, const char *path,
1410 struct afh_info *afhi, uint32_t flags,
1411 uint8_t audio_format_num, struct osl_object *obj)
1412 {
1413 size_t path_len = strlen(path) + 1;
1414 size_t afhi_size = sizeof_afhi_buf(afhi);
1415 size_t size = AFTROW_PATH_OFFSET + path_len + afhi_size
1416 + sizeof_chunk_table(afhi);
1417 char *buf = para_malloc(size);
1418 uint16_t pos;
1419
1420 write_u8(buf + AFTROW_AUDIO_FORMAT_OFFSET, audio_format_num);
1421 write_u32(buf + AFTROW_FLAGS_OFFSET, flags);
1422
1423 memcpy(buf + AFTROW_HASH_OFFSET, hash, HASH_SIZE);
1424 strcpy(buf + AFTROW_PATH_OFFSET, path);
1425
1426 pos = AFTROW_PATH_OFFSET + path_len;
1427 PARA_DEBUG_LOG("size: %zu, afhi starts at %d\n", size, pos);
1428 PARA_DEBUG_LOG("last afhi byte: %p, pos %zu\n", buf + pos + afhi_size - 1,
1429 pos + afhi_size - 1);
1430 write_u16(buf + AFTROW_AFHI_OFFSET_POS, pos);
1431 save_afhi(afhi, buf + pos);
1432
1433 pos += afhi_size;
1434 PARA_DEBUG_LOG("size: %zu, chunks start at %d\n", size, pos);
1435 write_u16(buf + AFTROW_CHUNKS_OFFSET_POS, pos);
1436 if (afhi)
1437 save_chunk_table(afhi, buf + pos);
1438 PARA_DEBUG_LOG("last byte in buf: %p\n", buf + size - 1);
1439 obj->data = buf;
1440 obj->size = size;
1441 }
1442
1443 /*
1444 input:
1445 ~~~~~~
1446 HS: hash sister
1447 PB: path brother
1448 F: force flag given
1449
1450 output:
1451 ~~~~~~~
1452 AFHI: whether afhi and chunk table are computed and sent
1453 ACTION: table modifications to be performed
1454
1455 +---+----+-----+------+---------------------------------------------------+
1456 | HS | PB | F | AFHI | ACTION
1457 +---+----+-----+------+---------------------------------------------------+
1458 | Y | Y | Y | Y | if HS != PB: remove PB. HS: force afhi update,
1459 | | update path, keep afsi
1460 +---+----+-----+------+---------------------------------------------------+
1461 | Y | Y | N | N | if HS == PB: do not send callback request at all.
1462 | | otherwise: remove PB, HS: update path, keep afhi,
1463 | | afsi.
1464 +---+----+-----+------+---------------------------------------------------+
1465 | Y | N | Y | Y | (rename) force afhi update of HS, update path of
1466 | | HS, keep afsi
1467 +---+----+-----+------+---------------------------------------------------+
1468 | Y | N | N | N | (file rename) update path of HS, keep afsi, afhi
1469 +---+----+-----+------+---------------------------------------------------+
1470 | N | Y | Y | Y | (file change) update afhi, hash, of PB, keep afsi
1471 | | (force has no effect)
1472 +---+----+-----+------+---------------------------------------------------+
1473 | N | Y | N | Y | (file change) update afhi, hash of PB, keep afsi
1474 +---+----+-----+------+---------------------------------------------------+
1475 | N | N | Y | Y | (new file) create new entry (force has no effect)
1476 +---+----+-----+------+---------------------------------------------------+
1477 | N | N | N | Y | (new file) create new entry
1478 +---+----+-----+------+---------------------------------------------------+
1479
1480 afhi <=> force or no HS
1481
1482 */
1483
1484 /** Flags passed to the add command. */
1485 enum com_add_flags {
1486 /** Skip paths that exist already. */
1487 ADD_FLAG_LAZY = 1,
1488 /** Force adding. */
1489 ADD_FLAG_FORCE = 2,
1490 /** Print what is being done. */
1491 ADD_FLAG_VERBOSE = 4,
1492 /** Try to add files with unknown suffixes. */
1493 ADD_FLAG_ALL = 8,
1494 };
1495
1496 static int com_add_callback(const struct osl_object *query,
1497 struct osl_object *result)
1498 {
1499 char *buf = query->data, *path;
1500 struct osl_row *pb, *aft_row;
1501 struct osl_row *hs;
1502 struct osl_object objs[NUM_AFT_COLUMNS];
1503 HASH_TYPE *hash;
1504 char asc[2 * HASH_SIZE + 1];
1505 int ret;
1506 char afsi_buf[AFSI_SIZE];
1507 uint32_t flags = read_u32(buf + AFTROW_FLAGS_OFFSET);
1508 struct afs_info default_afsi = {.last_played = 0};
1509 struct para_buffer msg = {.buf = NULL};
1510
1511 hash = (HASH_TYPE *)buf + AFTROW_HASH_OFFSET;
1512 hash_to_asc(hash, asc);;
1513 objs[AFTCOL_HASH].data = buf + AFTROW_HASH_OFFSET;
1514 objs[AFTCOL_HASH].size = HASH_SIZE;
1515
1516 path = buf + AFTROW_PATH_OFFSET;
1517 objs[AFTCOL_PATH].data = path;
1518 objs[AFTCOL_PATH].size = strlen(path) + 1;
1519
1520 PARA_INFO_LOG("request to add %s\n", path);
1521 hs = find_hash_sister(hash);
1522 ret = aft_get_row_of_path(path, &pb);
1523 if (ret < 0 && ret != -E_RB_KEY_NOT_FOUND)
1524 return ret;
1525 if (hs && pb && hs == pb && !(flags & ADD_FLAG_FORCE)) {
1526 if (flags & ADD_FLAG_VERBOSE)
1527 para_printf(&msg, "ignoring duplicate\n");
1528 ret = 1;
1529 goto out;
1530 }
1531 if (hs && hs != pb) {
1532 struct osl_object obj;
1533 if (pb) { /* hs trumps pb, remove pb */
1534 if (flags & ADD_FLAG_VERBOSE)
1535 para_printf(&msg, "removing path brother\n");
1536 ret = osl_del_row(audio_file_table, pb);
1537 if (ret < 0)
1538 goto out;
1539 pb = NULL;
1540 }
1541 /* file rename, update hs' path */
1542 if (flags & ADD_FLAG_VERBOSE) {
1543 ret = osl_get_object(audio_file_table, hs,
1544 AFTCOL_PATH, &obj);
1545 if (ret < 0)
1546 goto out;
1547 para_printf(&msg, "renamed from %s\n", (char *)obj.data);
1548 }
1549 ret = osl_update_object(audio_file_table, hs, AFTCOL_PATH,
1550 &objs[AFTCOL_PATH]);
1551 if (ret < 0)
1552 goto out;
1553 afs_event(AUDIO_FILE_RENAME, &msg, hs);
1554 if (!(flags & ADD_FLAG_FORCE))
1555 goto out;
1556 }
1557 /* no hs or force mode, child must have sent afhi */
1558 uint16_t afhi_offset = read_u16(buf + AFTROW_AFHI_OFFSET_POS);
1559 uint16_t chunks_offset = read_u16(buf + AFTROW_CHUNKS_OFFSET_POS);
1560
1561 objs[AFTCOL_AFHI].data = buf + afhi_offset;
1562 objs[AFTCOL_AFHI].size = chunks_offset - afhi_offset;
1563 ret = -E_NO_AFHI;
1564 if (!objs[AFTCOL_AFHI].size) /* "impossible" */
1565 goto out;
1566 objs[AFTCOL_CHUNKS].data = buf + chunks_offset;
1567 objs[AFTCOL_CHUNKS].size = query->size - chunks_offset;
1568 if (pb && !hs) { /* update pb's hash */
1569 char old_asc[2 * HASH_SIZE + 1];
1570 HASH_TYPE *old_hash;
1571 ret = get_hash_of_row(pb, &old_hash);
1572 if (ret < 0)
1573 goto out;
1574 hash_to_asc(old_hash, old_asc);
1575 if (flags & ADD_FLAG_VERBOSE)
1576 para_printf(&msg, "file change: %s -> %s\n",
1577 old_asc, asc);
1578 ret = osl_update_object(audio_file_table, pb, AFTCOL_HASH,
1579 &objs[AFTCOL_HASH]);
1580 if (ret < 0)
1581 goto out;
1582 }
1583 if (hs || pb) { /* (hs != NULL and pb != NULL) implies hs == pb */
1584 struct osl_row *row = pb? pb : hs;
1585 /* update afhi and chunk_table */
1586 if (flags & ADD_FLAG_VERBOSE)
1587 para_printf(&msg, "updating afhi and chunk table\n");
1588 ret = osl_update_object(audio_file_table, row, AFTCOL_AFHI,
1589 &objs[AFTCOL_AFHI]);
1590 if (ret < 0)
1591 goto out;
1592 ret = osl_update_object(audio_file_table, row, AFTCOL_CHUNKS,
1593 &objs[AFTCOL_CHUNKS]);
1594 if (ret < 0)
1595 goto out;
1596 afs_event(AFHI_CHANGE, &msg, row);
1597 goto out;
1598 }
1599 /* new entry, use default afsi */
1600 if (flags & ADD_FLAG_VERBOSE)
1601 para_printf(&msg, "new file\n");
1602 default_afsi.last_played = time(NULL) - 365 * 24 * 60 * 60;
1603 default_afsi.audio_format_id = read_u8(buf + AFTROW_AUDIO_FORMAT_OFFSET);
1604
1605 objs[AFTCOL_AFSI].data = &afsi_buf;
1606 objs[AFTCOL_AFSI].size = AFSI_SIZE;
1607 save_afsi(&default_afsi, &objs[AFTCOL_AFSI]);
1608 ret = osl_add_and_get_row(audio_file_table, objs, &aft_row);
1609 afs_event(AUDIO_FILE_ADD, &msg, aft_row);
1610 out:
1611 if (ret < 0)
1612 para_printf(&msg, "%s\n", PARA_STRERROR(-ret));
1613 if (!msg.buf)
1614 return 0;
1615 result->data = msg.buf;
1616 result->size = msg.size;
1617 return 1;
1618 }
1619
1620 /** Used by com_add(). */
1621 struct private_add_data {
1622 /** The socket file descriptor. */
1623 int fd;
1624 /** The given add flags. */
1625 uint32_t flags;
1626 };
1627
1628 static int path_brother_callback(const struct osl_object *query,
1629 struct osl_object *result)
1630 {
1631 char *path = query->data;
1632 struct osl_row *path_brother;
1633 int ret = aft_get_row_of_path(path, &path_brother);
1634 if (ret < 0)
1635 return ret;
1636 result->data = para_malloc(sizeof(path_brother));
1637 result->size = sizeof(path_brother);
1638 *(struct osl_row **)(result->data) = path_brother;
1639 return 1;
1640 }
1641
1642 static int hash_sister_callback(const struct osl_object *query,
1643 struct osl_object *result)
1644 {
1645 HASH_TYPE *hash = query->data;
1646 struct osl_row *hash_sister;
1647
1648 hash_sister = find_hash_sister(hash);
1649 if (!hash_sister)
1650 return -E_RB_KEY_NOT_FOUND;
1651 result->data = para_malloc(sizeof(hash_sister));
1652 result->size = sizeof(hash_sister);
1653 *(struct osl_row **)(result->data) = hash_sister;
1654 return 1;
1655 }
1656
1657 static int add_one_audio_file(const char *path, const void *private_data)
1658 {
1659 int ret, send_ret = 1;
1660 uint8_t format_num = -1;
1661 const struct private_add_data *pad = private_data;
1662 struct afh_info afhi, *afhi_ptr = NULL;
1663 struct osl_row *pb = NULL, *hs = NULL; /* path brother/hash sister */
1664 struct osl_object map, obj = {.data = NULL}, query, result = {.data = NULL};
1665 HASH_TYPE hash[HASH_SIZE];
1666
1667 afhi.header_offset = 0;
1668 afhi.header_len = 0;
1669 ret = guess_audio_format(path);
1670 if (ret < 0 && !(pad->flags & ADD_FLAG_ALL))
1671 goto out_free;
1672 query.data = (char *)path;
1673 query.size = strlen(path) + 1;
1674 ret = send_callback_request(path_brother_callback, &query, &result);
1675 if (ret < 0 && ret != -E_RB_KEY_NOT_FOUND)
1676 goto out_free;
1677 if (ret >= 0) {
1678 pb = *(struct osl_row **)result.data;
1679 free(result.data);
1680 }
1681 ret = 1;
1682 if (pb && (pad->flags & ADD_FLAG_LAZY)) { /* lazy is really cheap */
1683 if (pad->flags & ADD_FLAG_VERBOSE)
1684 send_ret = send_va_buffer(pad->fd, "lazy-ignore: %s\n", path);
1685 goto out_free;
1686 }
1687 /* We still want to add this file. Compute its hash. */
1688 ret = mmap_full_file(path, O_RDONLY, &map.data, &map.size, NULL);
1689 if (ret < 0)
1690 goto out_free;
1691 hash_function(map.data, map.size, hash);
1692
1693 /* Check whether the database contains a file with the same hash. */
1694 query.data = hash;
1695 query.size = HASH_SIZE;
1696 ret = send_callback_request(hash_sister_callback, &query, &result);
1697 if (ret < 0 && ret != -E_RB_KEY_NOT_FOUND)
1698 goto out_unmap;
1699 if (ret >= 0) {
1700 hs = *(struct osl_row **)result.data;
1701 free(result.data);
1702 }
1703 /* Return success if we already know this file. */
1704 ret = 1;
1705 if (pb && hs && hs == pb && !(pad->flags & ADD_FLAG_FORCE)) {
1706 if (pad->flags & ADD_FLAG_VERBOSE)
1707 send_ret = send_va_buffer(pad->fd,
1708 "%s exists, not forcing update\n", path);
1709 goto out_unmap;
1710 }
1711 /*
1712 * We won't recalculate the audio format info and the chunk table if
1713 * there is a hash sister and FORCE was not given.
1714 */
1715 if (!hs || (pad->flags & ADD_FLAG_FORCE)) {
1716 ret = compute_afhi(path, map.data, map.size, &afhi);
1717 if (ret < 0)
1718 goto out_unmap;
1719 format_num = ret;
1720 afhi_ptr = &afhi;
1721 }
1722 munmap(map.data, map.size);
1723 if (pad->flags & ADD_FLAG_VERBOSE) {
1724 send_ret = send_va_buffer(pad->fd, "adding %s\n", path);
1725 if (send_ret < 0)
1726 goto out_free;
1727 }
1728 save_audio_file_info(hash, path, afhi_ptr, pad->flags, format_num, &obj);
1729 /* Ask afs to consider this entry for adding. */
1730 ret = send_callback_request(com_add_callback, &obj, &result);
1731 if (ret > 0) {
1732 send_ret = send_va_buffer(pad->fd, "%s", (char *)result.data);
1733 free(result.data);
1734 }
1735 goto out_free;
1736
1737 out_unmap:
1738 munmap(map.data, map.size);
1739 out_free:
1740 if (ret < 0 && send_ret >= 0)
1741 send_ret = send_va_buffer(pad->fd, "failed to add %s (%s)\n", path,
1742 PARA_STRERROR(-ret));
1743 free(obj.data);
1744 if (afhi_ptr)
1745 free(afhi_ptr->chunk_table);
1746 /* Stop adding files only on send errors. */
1747 return send_ret;
1748 }
1749
1750 int com_add(int fd, int argc, char * const * const argv)
1751 {
1752 int i, ret;
1753 struct private_add_data pad = {.fd = fd, .flags = 0};
1754 struct stat statbuf;
1755
1756 for (i = 1; i < argc; i++) {
1757 const char *arg = argv[i];
1758 if (arg[0] != '-')
1759 break;
1760 if (!strcmp(arg, "--")) {
1761 i++;
1762 break;
1763 }
1764 if (!strcmp(arg, "-a")) {
1765 pad.flags |= ADD_FLAG_ALL;
1766 continue;
1767 }
1768 if (!strcmp(arg, "-l")) {
1769 pad.flags |= ADD_FLAG_LAZY;
1770 continue;
1771 }
1772 if (!strcmp(arg, "-f")) {
1773 pad.flags |= ADD_FLAG_FORCE;
1774 continue;
1775 }
1776 if (!strcmp(arg, "-v")) {
1777 pad.flags |= ADD_FLAG_VERBOSE;
1778 continue;
1779 }
1780 }
1781 if (argc <= i)
1782 return -E_AFT_SYNTAX;
1783 for (; i < argc; i++) {
1784 char *path;
1785 ret = verify_path(argv[i], &path);
1786 if (ret < 0) {
1787 ret = send_va_buffer(fd, "%s: %s\n", argv[i], PARA_STRERROR(-ret));
1788 if (ret < 0)
1789 return ret;
1790 continue;
1791 }
1792 ret = stat(path, &statbuf);
1793 if (ret < 0) {
1794 ret = send_va_buffer(fd, "failed to stat %s (%s)\n", path,
1795 strerror(errno));
1796 free(path);
1797 if (ret < 0)
1798 return ret;
1799 continue;
1800 }
1801 if (S_ISDIR(statbuf.st_mode))
1802 ret = for_each_file_in_dir(path, add_one_audio_file,
1803 &pad);
1804 else
1805 ret = add_one_audio_file(path, &pad);
1806 if (ret < 0) {
1807 send_va_buffer(fd, "%s: %s\n", path, PARA_STRERROR(-ret));
1808 free(path);
1809 return ret;
1810 }
1811 free(path);
1812 }
1813 return 1;
1814
1815 }
1816
1817 /**
1818 * Flags used by the touch command.
1819 *
1820 * \sa com_touch().
1821 */
1822 enum touch_flags {
1823 /** Whether the \p FNM_PATHNAME flag should be passed to fnmatch(). */
1824 TOUCH_FLAG_FNM_PATHNAME = 1,
1825 /** Activates verbose mode. */
1826 TOUCH_FLAG_VERBOSE = 2
1827 };
1828
1829 /** Options used by com_touch(). */
1830 struct com_touch_options {
1831 /** New num_played value. */
1832 int32_t num_played;
1833 /** New last played count. */
1834 int64_t last_played;
1835 /** new lyrics id. */
1836 int32_t lyrics_id;
1837 /** new image id. */
1838 int32_t image_id;
1839 /** command line flags (see \ref touch_flags). */
1840 unsigned flags;
1841 };
1842
1843 /** Data passed to the action handler of com_touch(). */
1844 struct touch_action_data {
1845 /** Command line options (see \ref com_touch_options). */
1846 struct com_touch_options *cto;
1847 /** Message buffer. */
1848 struct para_buffer pb;
1849 };
1850
1851 static int touch_audio_file(__a_unused struct osl_table *table,
1852 struct osl_row *row, const char *name, void *data)
1853 {
1854 struct touch_action_data *tad = data;
1855 struct osl_object obj;
1856 struct afs_info old_afsi, new_afsi;
1857 int ret, no_options = tad->cto->num_played < 0 && tad->cto->last_played < 0 &&
1858 tad->cto->lyrics_id < 0 && tad->cto->image_id < 0;
1859 struct afsi_change_event_data aced;
1860
1861 ret = get_afsi_object_of_row(row, &obj);
1862 if (ret < 0) {
1863 para_printf(&tad->pb, "%s: %s\n", name, PARA_STRERROR(-ret));
1864 return 1;
1865 }
1866 ret = load_afsi(&old_afsi, &obj);
1867 if (ret < 0) {
1868 para_printf(&tad->pb, "%s: %s\n", name, PARA_STRERROR(-ret));
1869 return 1;
1870 }
1871 new_afsi = old_afsi;
1872 if (no_options) {
1873 new_afsi.num_played++;
1874 new_afsi.last_played = time(NULL);
1875 if (tad->cto->flags & TOUCH_FLAG_VERBOSE)
1876 para_printf(&tad->pb, "%s: num_played = %u, "
1877 "last_played = now()\n", name,
1878 new_afsi.num_played);
1879 } else {
1880 if (tad->cto->flags & TOUCH_FLAG_VERBOSE)
1881 para_printf(&tad->pb, "touching %s\n", name);
1882 if (tad->cto->lyrics_id >= 0)
1883 new_afsi.lyrics_id = tad->cto->lyrics_id;
1884 if (tad->cto->image_id >= 0)
1885 new_afsi.image_id = tad->cto->image_id;
1886 if (tad->cto->num_played >= 0)
1887 new_afsi.num_played = tad->cto->num_played;
1888 if (tad->cto->last_played >= 0)
1889 new_afsi.last_played = tad->cto->last_played;
1890 }
1891 save_afsi(&new_afsi, &obj); /* in-place update */
1892 aced.aft_row = row;
1893 aced.old_afsi = &old_afsi;
1894 afs_event(AFSI_CHANGE, &tad->pb, &aced);
1895 return 1;
1896 }
1897
1898 static int com_touch_callback(const struct osl_object *query,
1899 struct osl_object *result)
1900 {
1901 struct touch_action_data tad = {.cto = query->data};
1902 int ret;
1903 struct pattern_match_data pmd = {
1904 .table = audio_file_table,
1905 .loop_col_num = AFTCOL_HASH,
1906 .match_col_num = AFTCOL_PATH,
1907 .patterns = {.data = (char *)query->data + sizeof(*tad.cto),
1908 .size = query->size - sizeof(*tad.cto)},
1909 .data = &tad,
1910 .action = touch_audio_file
1911 };
1912 if (tad.cto->flags & TOUCH_FLAG_FNM_PATHNAME)
1913 pmd.fnmatch_flags |= FNM_PATHNAME;
1914 ret = for_each_matching_row(&pmd);
1915 if (ret < 0)
1916 para_printf(&tad.pb, "%s\n", PARA_STRERROR(-ret));
1917 if (tad.pb.buf) {
1918 result->data = tad.pb.buf;
1919 result->size = tad.pb.size;
1920 return 1;
1921 }
1922 return ret < 0? ret : 0;
1923 }
1924
1925 int com_touch(int fd, int argc, char * const * const argv)
1926 {
1927 struct com_touch_options cto = {
1928 .num_played = -1,
1929 .last_played = -1,
1930 .lyrics_id = -1,
1931 .image_id = -1
1932 };
1933 struct osl_object query = {.data = &cto, .size = sizeof(cto)},
1934 result;
1935 int i, ret;
1936
1937
1938 for (i = 1; i < argc; i++) {
1939 const char *arg = argv[i];
1940 if (arg[0] != '-')
1941 break;
1942 if (!strcmp(arg, "--")) {
1943 i++;
1944 break;
1945 }
1946 if (!strncmp(arg, "-n", 2)) {
1947 ret = para_atoi32(arg + 2, &cto.num_played);
1948 if (ret < 0)
1949 return ret;
1950 continue;
1951 }
1952 if (!strncmp(arg, "-l", 2)) {
1953 ret = para_atoi64(arg + 2, &cto.last_played);
1954 if (ret < 0)
1955 return ret;
1956 continue;
1957 }
1958 if (!strncmp(arg, "-y", 2)) {
1959 ret = para_atoi32(arg + 2, &cto.lyrics_id);
1960 if (ret < 0)
1961 return ret;
1962 continue;
1963 }
1964 if (!strncmp(arg, "-i", 2)) {
1965 ret = para_atoi32(arg + 2, &cto.image_id);
1966 if (ret < 0)
1967 return ret;
1968 continue;
1969 }
1970 if (!strcmp(arg, "-p")) {
1971 cto.flags |= TOUCH_FLAG_FNM_PATHNAME;
1972 continue;
1973 }
1974 if (!strcmp(arg, "-v")) {
1975 cto.flags |= TOUCH_FLAG_VERBOSE;
1976 continue;
1977 }
1978 break; /* non-option starting with dash */
1979 }
1980 if (i >= argc)
1981 return -E_AFT_SYNTAX;
1982 ret = send_option_arg_callback_request(&query, argc - i,
1983 argv + i, com_touch_callback, &result);
1984 if (ret > 0) {
1985 send_buffer(fd, (char *)result.data);
1986 free(result.data);
1987 } else if (ret < 0)
1988 send_va_buffer(fd, "%s\n", PARA_STRERROR(-ret));
1989 return ret;
1990 }
1991
1992 /** Flags for com_rm(). */
1993 enum rm_flags {
1994 /** -v */
1995 RM_FLAG_VERBOSE = 1,
1996 /** -f */
1997 RM_FLAG_FORCE = 2,
1998 /** -p */
1999 RM_FLAG_FNM_PATHNAME = 4
2000 };
2001
2002 /** Data passed to the action handler of com_rm(). */
2003 struct com_rm_action_data {
2004 /** Command line flags ((see \ref rm_flags). */
2005 uint32_t flags;
2006 /** Message buffer. */
2007 struct para_buffer pb;
2008 /** Number of audio files removed. */
2009 unsigned num_removed;
2010 };
2011
2012 static int remove_audio_file(__a_unused struct osl_table *table,
2013 struct osl_row *row, const char *name, void *data)
2014 {
2015 struct com_rm_action_data *crd = data;
2016 int ret;
2017
2018 if (crd->flags & RM_FLAG_VERBOSE)
2019 para_printf(&crd->pb, "removing %s\n", name);
2020 afs_event(AUDIO_FILE_REMOVE, &crd->pb, row);
2021 ret = osl_del_row(audio_file_table, row);
2022 if (ret < 0)
2023 para_printf(&crd->pb, "%s: %s\n", name, PARA_STRERROR(-ret));
2024 else
2025 crd->num_removed++;
2026 return 1;
2027 }
2028
2029 static int com_rm_callback(const struct osl_object *query,
2030 __a_unused struct osl_object *result)
2031 {
2032 struct com_rm_action_data crd = {.flags = *(uint32_t *)query->data};
2033 int ret;
2034 struct pattern_match_data pmd = {
2035 .table = audio_file_table,
2036 .loop_col_num = AFTCOL_HASH,
2037 .match_col_num = AFTCOL_PATH,
2038 .patterns = {.data = (char *)query->data + sizeof(uint32_t),
2039 .size = query->size - sizeof(uint32_t)},
2040 .data = &crd,
2041 .action = remove_audio_file
2042 };
2043 if (crd.flags & RM_FLAG_FNM_PATHNAME)
2044 pmd.fnmatch_flags |= FNM_PATHNAME;
2045 ret = for_each_matching_row(&pmd);
2046 if (ret < 0)
2047 para_printf(&crd.pb, "%s\n", PARA_STRERROR(-ret));
2048 if (!crd.num_removed && !(crd.flags & RM_FLAG_FORCE))
2049 para_printf(&crd.pb, "no matches -- nothing removed\n");
2050 else {
2051 if (crd.flags & RM_FLAG_VERBOSE)
2052 para_printf(&crd.pb, "removed %u files\n", crd.num_removed);
2053 }
2054 if (crd.pb.buf) {
2055 result->data = crd.pb.buf;
2056 result->size = crd.pb.size;
2057 return 1;
2058 }
2059 return ret < 0? ret : 0;
2060 }
2061
2062 /* TODO options: -r (recursive) */
2063 int com_rm(int fd, int argc, char * const * const argv)
2064 {
2065 uint32_t flags = 0;
2066 struct osl_object query = {.data = &flags, .size = sizeof(flags)},
2067 result;
2068 int i, ret;
2069
2070 for (i = 1; i < argc; i++) {
2071 const char *arg = argv[i];
2072 if (arg[0] != '-')
2073 break;
2074 if (!strcmp(arg, "--")) {
2075 i++;
2076 break;
2077 }
2078 if (!strcmp(arg, "-f")) {
2079 flags |= RM_FLAG_FORCE;
2080 continue;
2081 }
2082 if (!strcmp(arg, "-p")) {
2083 flags |= RM_FLAG_FNM_PATHNAME;
2084 continue;
2085 }
2086 if (!strcmp(arg, "-v")) {
2087 flags |= RM_FLAG_VERBOSE;
2088 continue;
2089 }
2090 break;
2091 }
2092 if (i >= argc)
2093 return -E_AFT_SYNTAX;
2094 ret = send_option_arg_callback_request(&query, argc - i, argv + i,
2095 com_rm_callback, &result);
2096 if (ret > 0) {
2097 send_buffer(fd, (char *)result.data);
2098 free(result.data);
2099 } else if (ret < 0)
2100 send_va_buffer(fd, "%s\n", PARA_STRERROR(-ret));
2101 return ret;
2102 }
2103
2104 /**
2105 * Flags used by the cpsi command.
2106 *
2107 * \sa com_cpsi().
2108 */
2109 enum cpsi_flags {
2110 /** Whether the lyrics id should be copied. */
2111 CPSI_FLAG_COPY_LYRICS_ID = 1,
2112 /** Whether the image id should be copied. */
2113 CPSI_FLAG_COPY_IMAGE_ID = 2,
2114 /** Whether the lastplayed time should be copied. */
2115 CPSI_FLAG_COPY_LASTPLAYED = 4,
2116 /** Whether the numplayed count should be copied. */
2117 CPSI_FLAG_COPY_NUMPLAYED = 8,
2118 /** Whether the attributes should be copied. */
2119 CPSI_FLAG_COPY_ATTRIBUTES = 16,
2120 /** Activates verbose mode. */
2121 CPSI_FLAG_VERBOSE = 32,
2122 };
2123
2124 /** Data passed to the action handler of com_cpsi(). */
2125 struct cpsi_action_data {
2126 /** command line flags (see \ref cpsi_flags). */
2127 unsigned flags;
2128 /** Number of audio files changed. */
2129 unsigned num_copied;
2130 /** Message buffer. */
2131 struct para_buffer pb;
2132 /** Values are copied from here. */
2133 struct afs_info source_afsi;
2134 };
2135
2136 static int copy_selector_info(__a_unused struct osl_table *table,
2137 struct osl_row *row, const char *name, void *data)
2138 {
2139 struct cpsi_action_data *cad = data;
2140 struct osl_object target_afsi_obj;
2141 int ret;
2142 struct afs_info old_afsi, target_afsi;
2143 struct afsi_change_event_data aced;
2144
2145 ret = get_afsi_object_of_row(row, &target_afsi_obj);
2146 if (ret < 0)
2147 return ret;
2148 load_afsi(&target_afsi, &target_afsi_obj);
2149 old_afsi = target_afsi;
2150 if (cad->flags & CPSI_FLAG_COPY_LYRICS_ID)
2151 target_afsi.lyrics_id = cad->source_afsi.lyrics_id;
2152 if (cad->flags & CPSI_FLAG_COPY_IMAGE_ID)
2153 target_afsi.image_id = cad->source_afsi.image_id;
2154 if (cad->flags & CPSI_FLAG_COPY_LASTPLAYED)
2155 target_afsi.last_played = cad->source_afsi.last_played;
2156 if (cad->flags & CPSI_FLAG_COPY_NUMPLAYED)
2157 target_afsi.num_played = cad->source_afsi.num_played;
2158 if (cad->flags & CPSI_FLAG_COPY_ATTRIBUTES)
2159 target_afsi.attributes = cad->source_afsi.attributes;
2160 save_afsi(&target_afsi, &target_afsi_obj); /* in-place update */
2161 cad->num_copied++;
2162 if (cad->flags & CPSI_FLAG_VERBOSE)
2163 para_printf(&cad->pb, "copied afsi to %s\n", name);
2164 aced.aft_row = row;
2165 aced.old_afsi = &old_afsi;
2166 afs_event(AFSI_CHANGE, &cad->pb, &aced);
2167 return 1;
2168 }
2169
2170 static int com_cpsi_callback(const struct osl_object *query,
2171 struct osl_object *result)
2172 {
2173 struct cpsi_action_data cad = {.flags = *(unsigned *)query->data};
2174 int ret;
2175 char *source_path = (char *)query->data + sizeof(cad.flags);
2176
2177 ret = get_afsi_of_path(source_path, &cad.source_afsi);
2178 if (ret < 0)
2179 goto out;
2180 struct pattern_match_data pmd = {
2181 .table = audio_file_table,
2182 .loop_col_num = AFTCOL_HASH,
2183 .match_col_num = AFTCOL_PATH,
2184 .patterns = {.data = source_path + strlen(source_path) + 1,
2185 .size = query->size - sizeof(cad.flags)
2186 - strlen(source_path) - 1},
2187 .data = &cad,
2188 .action = copy_selector_info
2189 };
2190 ret = for_each_matching_row(&pmd);
2191 out:
2192 if (ret < 0)
2193 para_printf(&cad.pb, "%s\n", PARA_STRERROR(-ret));
2194 if (cad.flags & CPSI_FLAG_VERBOSE) {
2195 if (cad.num_copied)
2196 para_printf(&cad.pb, "copied requested afsi from %s "
2197 "to %u files\n",
2198 source_path, cad.num_copied);
2199 else
2200 para_printf(&cad.pb, "nothing copied\n");
2201 }
2202 if (cad.pb.buf) {
2203 result->data = cad.pb.buf;
2204 result->size = cad.pb.size;
2205 return 1;
2206 }
2207 return ret < 0? ret : 0;
2208 }
2209
2210 int com_cpsi(int fd, int argc, char * const * const argv)
2211 {
2212 unsigned flags = 0;
2213 int i, ret;
2214 struct osl_object options = {.data = &flags, .size = sizeof(flags)},
2215 result;
2216
2217 for (i = 1; i < argc; i++) {
2218 const char *arg = argv[i];
2219 if (arg[0] != '-')
2220 break;
2221 if (!strcmp(arg, "--")) {
2222 i++;
2223 break;
2224 }
2225 if (!strcmp(arg, "-y")) {
2226 flags |= CPSI_FLAG_COPY_LYRICS_ID;
2227 continue;
2228 }
2229 if (!strcmp(arg, "-i")) {
2230 flags |= CPSI_FLAG_COPY_IMAGE_ID;
2231 continue;
2232 }
2233 if (!strcmp(arg, "-l")) {
2234 flags |= CPSI_FLAG_COPY_LASTPLAYED;
2235 continue;
2236 }
2237 if (!strcmp(arg, "-n")) {
2238 flags |= CPSI_FLAG_COPY_NUMPLAYED;
2239 continue;
2240 }
2241 if (!strcmp(arg, "-a")) {
2242 flags |= CPSI_FLAG_COPY_ATTRIBUTES;
2243 continue;
2244 }
2245 if (!strcmp(arg, "-v")) {
2246 flags |= CPSI_FLAG_VERBOSE;
2247 continue;
2248 }
2249 break;
2250 }
2251 if (i + 1 >= argc) /* need at least souce file and pattern */
2252 return -E_AFT_SYNTAX;
2253 if (!(flags & ~CPSI_FLAG_VERBOSE)) /* no copy flags given */
2254 flags = ~(unsigned)CPSI_FLAG_VERBOSE | flags;
2255 ret = send_option_arg_callback_request(&options, argc - i, argv + i,
2256 com_cpsi_callback, &result);
2257 if (ret > 0) {
2258 send_buffer(fd, (char *)result.data);
2259 free(result.data);
2260 } else
2261 send_va_buffer(fd, "%s\n", PARA_STRERROR(-ret));
2262 return ret;
2263 }
2264
2265 /* TODO: optionally fix problems by removing offending rows */
2266 static int check_audio_file(struct osl_row *row, void *data)
2267 {
2268 char *path;
2269 struct para_buffer *pb = data;
2270 struct stat statbuf;
2271 int ret = get_audio_file_path_of_row(row, &path);
2272 struct afs_info afsi;
2273 char *blob_name;
2274
2275 if (ret < 0) {
2276 para_printf(pb, "%s\n", PARA_STRERROR(-ret));
2277 return 1;
2278 }
2279 if (stat(path, &statbuf) < 0)
2280 para_printf(pb, "%s: stat error (%s)\n", path, strerror(errno));
2281 else {
2282 if (!S_ISREG(statbuf.st_mode))
2283 para_printf(pb, "%s: not a regular file\n", path);
2284 }
2285 ret = get_afsi_of_row(row, &afsi);
2286 if (ret < 0) {
2287 para_printf(pb, "%s: %s\n", path, PARA_STRERROR(-ret));
2288 return 1;
2289 }
2290 ret = lyr_get_name_by_id(afsi.lyrics_id, &blob_name);
2291 if (ret < 0)
2292 para_printf(pb, "%s lyrics id %u: %s\n", path, afsi.lyrics_id,
2293 PARA_STRERROR(-ret));
2294 ret = img_get_name_by_id(afsi.image_id, &blob_name);
2295 if (ret < 0)
2296 para_printf(pb, "%s image id %u: %s\n", path, afsi.image_id,
2297 PARA_STRERROR(-ret));
2298 return 1;
2299 }
2300
2301 /**
2302 * Check the audio file table for inconsistencies.
2303 *
2304 * \param query Unused.
2305 * \param result Contains message string upon return.
2306 *
2307 * This function always succeeds.
2308 *
2309 * \sa com_check().
2310 */
2311 int aft_check_callback(__a_unused const struct osl_object *query, struct osl_object *result)
2312 {
2313 struct para_buffer pb = {.buf = NULL};
2314
2315 para_printf(&pb, "checking audio file table...\n");
2316 audio_file_loop(&pb, check_audio_file);
2317 result->data = pb.buf;
2318 result->size = pb.size;
2319 return 1;
2320
2321 }
2322
2323 /**
2324 * Close the audio file table.
2325 *
2326 * \param flags Usual flags that are passed to osl_close_table().
2327 *
2328 * \sa osl_close_table().
2329 */
2330 static void aft_close(void)
2331 {
2332 osl_close_table(audio_file_table, OSL_MARK_CLEAN);
2333 audio_file_table = NULL;
2334 }
2335
2336 /**
2337 * Open the audio file table.
2338 *
2339 * \param dir The database directory.
2340 *
2341 * \return Standard.
2342 *
2343 * \sa osl_open_table().
2344 */
2345 static int aft_open(const char *dir)
2346 {
2347 int ret;
2348
2349 audio_file_table_desc.dir = dir;
2350 ret = osl_open_table(&audio_file_table_desc, &audio_file_table);
2351 if (ret >= 0) {
2352 unsigned num;
2353 osl_get_num_rows(audio_file_table, &num);
2354 PARA_INFO_LOG("audio file table contains %d files\n", num);
2355 return ret;
2356 }
2357 PARA_INFO_LOG("failed to open audio file table\n");
2358 audio_file_table = NULL;
2359 if (ret >= 0 || is_errno(-ret, ENOENT))
2360 return 1;
2361 return ret;
2362 }
2363
2364 static int aft_create(const char *dir)
2365 {
2366 audio_file_table_desc.dir = dir;
2367 return osl_create_table(&audio_file_table_desc);
2368 }
2369
2370 static int clear_attribute(struct osl_row *row, void *data)
2371 {
2372 struct rmatt_event_data *red = data;
2373 struct afs_info afsi;
2374 struct osl_object obj;
2375 int ret = get_afsi_object_of_row(row, &obj);
2376 uint64_t mask = ~(1ULL << red->bitnum);
2377
2378 if (ret < 0)
2379 return ret;
2380 ret = load_afsi(&afsi, &obj);
2381 if (ret < 0)
2382 return ret;
2383 afsi.attributes &= mask;
2384 save_afsi(&afsi, &obj);
2385 return 1;
2386 }
2387
2388 static int aft_event_handler(enum afs_events event, struct para_buffer *pb,
2389 void *data)
2390 {
2391 switch(event) {
2392 case ATTRIBUTE_REMOVE: {
2393 const struct rmatt_event_data *red = data;
2394 para_printf(pb, "clearing attribute %s (bit %u) from all "
2395 "entries in the audio file table\n", red->name,
2396 red->bitnum);
2397 return audio_file_loop(data, clear_attribute);
2398 }
2399 default:
2400 return 1;
2401 }
2402 }
2403
2404 void aft_init(struct afs_table *t)
2405 {
2406 t->name = audio_file_table_desc.name;
2407 t->open = aft_open;
2408 t->close = aft_close;
2409 t->create = aft_create;
2410 t->event_handler = aft_event_handler;
2411 }