Introduce new syntax for com_ls().
[paraslash.git] / aft.c
1 /*
2 * Copyright (C) 2007 Andre Noll <maan@tuebingen.mpg.de>
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 <regex.h>
10 #include <sys/mman.h>
11 #include <fnmatch.h>
12 #include <sys/shm.h>
13 #include <osl.h>
14
15 #include "para.h"
16 #include "error.h"
17 #include "crypt.h"
18 #include "string.h"
19 #include "afh.h"
20 #include "afs.h"
21 #include "fd.h"
22 #include "ipc.h"
23 #include "portable_io.h"
24 #include "sideband.h"
25 #include "command.h"
26
27 static struct osl_table *audio_file_table;
28 static char *status_items;
29 static char *parser_friendly_status_items;
30
31 /** The different sorting methods of the ls command. */
32 enum ls_sorting_method {
33 /** -sp (default) */
34 LS_SORT_BY_PATH,
35 /** -ss */
36 LS_SORT_BY_SCORE,
37 /** -sl */
38 LS_SORT_BY_LAST_PLAYED,
39 /** -sn */
40 LS_SORT_BY_NUM_PLAYED,
41 /** -sf */
42 LS_SORT_BY_FREQUENCY,
43 /** -sc */
44 LS_SORT_BY_CHANNELS,
45 /** -si */
46 LS_SORT_BY_IMAGE_ID,
47 /** -sy */
48 LS_SORT_BY_LYRICS_ID,
49 /** -sb */
50 LS_SORT_BY_BITRATE,
51 /** -sd */
52 LS_SORT_BY_DURATION,
53 /** -sa */
54 LS_SORT_BY_AUDIO_FORMAT,
55 /** -sh */
56 LS_SORT_BY_HASH,
57 };
58
59 /** The different listing modes of the ls command. */
60 enum ls_listing_mode {
61 /** Default listing mode. */
62 LS_MODE_SHORT,
63 /** -l or -ll */
64 LS_MODE_LONG,
65 /** -lv */
66 LS_MODE_VERBOSE,
67 /** -lm */
68 LS_MODE_MBOX,
69 /** -lc */
70 LS_MODE_CHUNKS,
71 /** -lp */
72 LS_MODE_PARSER,
73 };
74
75 /* Data about one audio file. Needed for ls and stat output. */
76 struct ls_data {
77 /* Usual audio format handler information. */
78 struct afh_info afhi;
79 /* Audio file selector information. */
80 struct afs_info afsi;
81 /* The full path of the audio file. */
82 char *path;
83 /* The score value (if -a was given). */
84 long score;
85 /* The hash value of the audio file data. */
86 unsigned char *hash;
87 };
88
89 /** The flags accepted by the ls command. */
90 enum ls_flags {
91 /** -p */
92 LS_FLAG_FULL_PATH = 1,
93 /** -a */
94 LS_FLAG_ADMISSIBLE_ONLY = 2,
95 /** -r */
96 LS_FLAG_REVERSE = 4,
97 /** -d */
98 LS_FLAG_UNIXDATE = 8,
99 };
100
101 /**
102 * The size of the individual output fields of the ls command.
103 *
104 * These depend on the content being listed. For example, if each listed file
105 * is shorter than an hour, the duration format is set to mm:ss. Otherwise it
106 * is set to hh:mm:ss.
107 */
108 struct ls_widths {
109 /** size of the score field. */
110 unsigned short score_width;
111 /** size of the image id field. */
112 unsigned short image_id_width;
113 /** size of the lyrics id field. */
114 unsigned short lyrics_id_width;
115 /** size of the bitrate field. */
116 unsigned short bitrate_width;
117 /** size of the frequency field. */
118 unsigned short frequency_width;
119 /** size of the duration field. */
120 unsigned short duration_width;
121 /** size of the num played field. */
122 unsigned short num_played_width;
123 /** size of the amp field. */
124 unsigned short amp_width;
125 /** size of the audio format field. */
126 unsigned short audio_format_width;
127 };
128
129 /** Data passed from the ls command handler to its callback function. */
130 struct ls_options {
131 /** The given command line flags. */
132 unsigned flags;
133 /** The sorting method given at the command line. */
134 enum ls_sorting_method sorting;
135 /** The given listing mode (short, long, verbose, mbox). */
136 enum ls_listing_mode mode;
137 /** The arguments passed to the ls command. */
138 char **patterns;
139 /** Number of non-option arguments. */
140 int num_patterns;
141 /** Used for long listing mode to align the output fields. */
142 struct ls_widths widths;
143 /** Size of the \a data array. */
144 uint32_t array_size;
145 /** Number of used entries in the data array. */
146 uint32_t num_matching_paths;
147 /** Array of matching entries. */
148 struct ls_data *data;
149 /** Used to sort the array. */
150 struct ls_data **data_ptr;
151 };
152
153 /**
154 * Describes the layout of the mmapped-afs info struct.
155 *
156 * \sa struct afs_info.
157 */
158 enum afsi_offsets {
159 /** Where .last_played is stored. */
160 AFSI_LAST_PLAYED_OFFSET = 0,
161 /** Storage position of the attributes bitmap. */
162 AFSI_ATTRIBUTES_OFFSET = 8,
163 /** Storage position of the .num_played field. */
164 AFSI_NUM_PLAYED_OFFSET = 16,
165 /** Storage position of the .image_id field. */
166 AFSI_IMAGE_ID_OFFSET = 20,
167 /** Storage position of the .lyrics_id field. */
168 AFSI_LYRICS_ID_OFFSET = 24,
169 /** Storage position of the .audio_format_id field. */
170 AFSI_AUDIO_FORMAT_ID_OFFSET = 28,
171 /** Storage position of the amplification field. */
172 AFSI_AMP_OFFSET = 29,
173 /** 2 bytes reserved space for future usage. */
174 AFSI_AUDIO_FORMAT_UNUSED_OFFSET = 30,
175 /** On-disk storage space needed. */
176 AFSI_SIZE = 32
177 };
178
179 /*
180 * Convert a struct afs_info to an osl object.
181 *
182 * \param afsi Pointer to the audio file info to be converted.
183 * \param obj Result pointer.
184 *
185 * \sa load_afsi().
186 */
187 static void save_afsi(struct afs_info *afsi, struct osl_object *obj)
188 {
189 char *buf = obj->data;
190
191 write_u64(buf + AFSI_LAST_PLAYED_OFFSET, afsi->last_played);
192 write_u64(buf + AFSI_ATTRIBUTES_OFFSET, afsi->attributes);
193 write_u32(buf + AFSI_NUM_PLAYED_OFFSET, afsi->num_played);
194 write_u32(buf + AFSI_IMAGE_ID_OFFSET, afsi->image_id);
195 write_u32(buf + AFSI_LYRICS_ID_OFFSET, afsi->lyrics_id);
196 write_u8(buf + AFSI_AUDIO_FORMAT_ID_OFFSET,
197 afsi->audio_format_id);
198 write_u8(buf + AFSI_AMP_OFFSET, afsi->amp);
199 memset(buf + AFSI_AUDIO_FORMAT_UNUSED_OFFSET, 0, 2);
200 }
201
202 /*
203 * Get the audio file selector info struct stored in an osl object.
204 *
205 * \param afsi Points to the audio_file info structure to be filled in.
206 * \param obj The osl object holding the data.
207 *
208 * \return Standard.
209 *
210 * \sa save_afsi().
211 */
212 static int load_afsi(struct afs_info *afsi, struct osl_object *obj)
213 {
214 char *buf = obj->data;
215 if (obj->size < AFSI_SIZE)
216 return -E_BAD_AFSI;
217 afsi->last_played = read_u64(buf + AFSI_LAST_PLAYED_OFFSET);
218 afsi->attributes = read_u64(buf + AFSI_ATTRIBUTES_OFFSET);
219 afsi->num_played = read_u32(buf + AFSI_NUM_PLAYED_OFFSET);
220 afsi->image_id = read_u32(buf + AFSI_IMAGE_ID_OFFSET);
221 afsi->lyrics_id = read_u32(buf + AFSI_LYRICS_ID_OFFSET);
222 afsi->audio_format_id = read_u8(buf +
223 AFSI_AUDIO_FORMAT_ID_OFFSET);
224 afsi->amp = read_u8(buf + AFSI_AMP_OFFSET);
225 return 1;
226 }
227
228 /** The columns of the audio file table. */
229 enum audio_file_table_columns {
230 /** The hash on the content of the audio file. */
231 AFTCOL_HASH,
232 /** The full path in the filesystem. */
233 AFTCOL_PATH,
234 /** The audio file selector info. */
235 AFTCOL_AFSI,
236 /** The audio format handler info. */
237 AFTCOL_AFHI,
238 /** The chunk table info and the chunk table of the audio file. */
239 AFTCOL_CHUNKS,
240 /** The number of columns of this table. */
241 NUM_AFT_COLUMNS
242 };
243
244 /**
245 * Compare two osl objects pointing to hash values.
246 *
247 * \param obj1 Pointer to the first hash object.
248 * \param obj2 Pointer to the second hash object.
249 *
250 * \return The values required for an osl compare function.
251 *
252 * \sa osl_compare_func, uint32_compare().
253 */
254 static int aft_hash_compare(const struct osl_object *obj1, const struct osl_object *obj2)
255 {
256 return hash_compare((unsigned char *)obj1->data, (unsigned char *)obj2->data);
257 }
258
259 static struct osl_column_description aft_cols[] = {
260 [AFTCOL_HASH] = {
261 .storage_type = OSL_MAPPED_STORAGE,
262 .storage_flags = OSL_RBTREE | OSL_FIXED_SIZE | OSL_UNIQUE,
263 .name = "hash",
264 .compare_function = aft_hash_compare,
265 .data_size = HASH_SIZE
266 },
267 [AFTCOL_PATH] = {
268 .storage_type = OSL_MAPPED_STORAGE,
269 .storage_flags = OSL_RBTREE | OSL_UNIQUE,
270 .name = "path",
271 .compare_function = string_compare,
272 },
273 [AFTCOL_AFSI] = {
274 .storage_type = OSL_MAPPED_STORAGE,
275 .storage_flags = OSL_FIXED_SIZE,
276 .name = "afs_info",
277 .data_size = AFSI_SIZE
278 },
279 [AFTCOL_AFHI] = {
280 .storage_type = OSL_MAPPED_STORAGE,
281 .name = "afh_info",
282 },
283 [AFTCOL_CHUNKS] = {
284 .storage_type = OSL_DISK_STORAGE,
285 .name = "chunks",
286 }
287 };
288
289 static struct osl_table_description audio_file_table_desc = {
290 .name = "audio_files",
291 .num_columns = NUM_AFT_COLUMNS,
292 .flags = OSL_LARGE_TABLE,
293 .column_descriptions = aft_cols
294 };
295
296 /*
297 * Produce a canonicalized absolute pathname.
298 *
299 * Returns one if the resolved path a directory, zero if it is a regular file,
300 * negative on errors.
301 */
302 static int verify_path(const char *orig_path, char **resolved_path)
303 {
304 int ret;
305 char *path = NULL;
306 struct stat statbuf;
307
308 if (*orig_path != '/') /* we only accept absolute paths */
309 goto fail;
310 path = realpath(orig_path, NULL);
311 if (!path)
312 goto fail;
313 if (stat(path, &statbuf) < 0)
314 goto fail;
315 if (S_ISREG(statbuf.st_mode))
316 ret = 0;
317 else if (S_ISDIR(statbuf.st_mode))
318 ret = 1;
319 else
320 goto fail;
321 *resolved_path = path;
322 return ret;
323 fail:
324 *resolved_path = NULL;
325 free(path);
326 return -E_BAD_PATH;
327 }
328
329 /** The on-disk layout of a afhi struct. */
330 enum afhi_offsets {
331 /** Where the number of seconds is stored. */
332 AFHI_SECONDS_TOTAL_OFFSET = 0,
333 /** Position of the bitrate. */
334 AFHI_BITRATE_OFFSET = 4,
335 /** Position of the frequency. */
336 AFHI_FREQUENCY_OFFSET = 8,
337 /** Was: Location of the audio file header. */
338 AFHI_UNUSED1_OFFSET = 12,
339 /* Length of the audio file header. Zero means: No header. */
340 AFHI_HEADER_LEN_OFFSET = 16,
341 /** The total number of chunks (4 bytes). */
342 CHUNKS_TOTAL_OFFSET = 20,
343 /** The length of the audio file header (4 bytes). */
344 HEADER_LEN_OFFSET = 24,
345 /** Was: The start of the audio file header (4 bytes). */
346 AFHI_UNUSED2_OFFSET = 28,
347 /** The seconds part of the chunk time (4 bytes). */
348 CHUNK_TV_TV_SEC_OFFSET = 32,
349 /** The microseconds part of the chunk time (4 bytes). */
350 CHUNK_TV_TV_USEC_OFFSET = 36,
351 /** Number of channels is stored here. (1 byte) */
352 AFHI_CHANNELS_OFFSET = 40,
353 /** The tag info position. */
354 AFHI_INFO_STRING_OFFSET = 41,
355 /** Minimal on-disk size of a valid afhi struct. */
356 MIN_AFHI_SIZE = 47, /* at least 6 null bytes for techinfo/tags */
357 };
358
359 static unsigned sizeof_afhi_buf(const struct afh_info *afhi)
360 {
361 if (!afhi)
362 return 0;
363 return MIN_AFHI_SIZE
364 + strlen(afhi->techinfo)
365 + strlen(afhi->tags.artist)
366 + strlen(afhi->tags.title)
367 + strlen(afhi->tags.year)
368 + strlen(afhi->tags.album)
369 + strlen(afhi->tags.comment);
370 }
371
372 static void save_afhi(struct afh_info *afhi, char *buf)
373 {
374 char *p;
375
376 if (!afhi)
377 return;
378 write_u32(buf + AFHI_SECONDS_TOTAL_OFFSET, afhi->seconds_total);
379 write_u32(buf + AFHI_BITRATE_OFFSET, afhi->bitrate);
380 write_u32(buf + AFHI_FREQUENCY_OFFSET, afhi->frequency);
381 write_u32(buf + AFHI_UNUSED1_OFFSET, 0);
382 write_u32(buf + AFHI_HEADER_LEN_OFFSET, afhi->header_len);
383 write_u8(buf + AFHI_CHANNELS_OFFSET, afhi->channels);
384 write_u32(buf + CHUNKS_TOTAL_OFFSET, afhi->chunks_total);
385 write_u32(buf + HEADER_LEN_OFFSET, afhi->header_len);
386 write_u32(buf + AFHI_UNUSED2_OFFSET, 0);
387 write_u32(buf + CHUNK_TV_TV_SEC_OFFSET, afhi->chunk_tv.tv_sec);
388 write_u32(buf + CHUNK_TV_TV_USEC_OFFSET, afhi->chunk_tv.tv_usec);
389 p = buf + AFHI_INFO_STRING_OFFSET;
390 /* The sprintf's below are OK as our caller made sure that buf is large enough */
391 p += sprintf(p, "%s", afhi->techinfo) + 1;
392 p += sprintf(p, "%s", afhi->tags.artist) + 1;
393 p += sprintf(p, "%s", afhi->tags.title) + 1;
394 p += sprintf(p, "%s", afhi->tags.year) + 1;
395 p += sprintf(p, "%s", afhi->tags.album) + 1;
396 sprintf(p, "%s", afhi->tags.comment);
397 }
398
399 static void load_afhi(const char *buf, struct afh_info *afhi)
400 {
401 afhi->seconds_total = read_u32(buf + AFHI_SECONDS_TOTAL_OFFSET);
402 afhi->bitrate = read_u32(buf + AFHI_BITRATE_OFFSET);
403 afhi->frequency = read_u32(buf + AFHI_FREQUENCY_OFFSET);
404 afhi->header_len = read_u32(buf + AFHI_HEADER_LEN_OFFSET);
405 afhi->channels = read_u8(buf + AFHI_CHANNELS_OFFSET);
406 afhi->chunks_total = read_u32(buf + CHUNKS_TOTAL_OFFSET);
407 afhi->header_len = read_u32(buf + HEADER_LEN_OFFSET);
408 afhi->chunk_tv.tv_sec = read_u32(buf + CHUNK_TV_TV_SEC_OFFSET);
409 afhi->chunk_tv.tv_usec = read_u32(buf + CHUNK_TV_TV_USEC_OFFSET);
410 afhi->techinfo = (char *)buf + AFHI_INFO_STRING_OFFSET;
411 afhi->tags.artist = afhi->techinfo + strlen(afhi->techinfo) + 1;
412 afhi->tags.title = afhi->tags.artist + strlen(afhi->tags.artist) + 1;
413 afhi->tags.year = afhi->tags.title + strlen(afhi->tags.title) + 1;
414 afhi->tags.album = afhi->tags.year + strlen(afhi->tags.year) + 1;
415 afhi->tags.comment = afhi->tags.album + strlen(afhi->tags.album) + 1;
416 }
417
418 static unsigned sizeof_chunk_table(struct afh_info *afhi)
419 {
420 if (!afhi)
421 return 0;
422 return 4 * (afhi->chunks_total + 1);
423 }
424
425 static uint32_t save_chunk_table(struct afh_info *afhi, char *buf)
426 {
427 int i;
428 uint32_t max = 0, old = 0;
429
430 for (i = 0; i <= afhi->chunks_total; i++) {
431 uint32_t val = afhi->chunk_table[i];
432 write_u32(buf + 4 * i, val);
433 /*
434 * If the first chunk is the header, do not consider it for the
435 * calculation of the largest chunk size.
436 */
437 if (i == 0 || (i == 1 && afhi->header_len > 0)) {
438 old = val;
439 continue;
440 }
441 max = PARA_MAX(max, val - old);
442 old = val;
443 }
444 return max;
445 }
446
447 static void load_chunk_table(struct afh_info *afhi, char *buf)
448 {
449 int i;
450
451 afhi->chunk_table = para_malloc(sizeof_chunk_table(afhi));
452 for (i = 0; i <= afhi->chunks_total; i++)
453 afhi->chunk_table[i] = read_u32(buf + 4 * i);
454 }
455
456 /**
457 * Get the row of the audio file table corresponding to the given path.
458 *
459 * \param path The full path of the audio file.
460 * \param row Result pointer.
461 *
462 * \return Standard.
463 */
464 int aft_get_row_of_path(const char *path, struct osl_row **row)
465 {
466 struct osl_object obj = {.data = (char *)path, .size = strlen(path) + 1};
467
468 return osl(osl_get_row(audio_file_table, AFTCOL_PATH, &obj, row));
469 }
470
471 /**
472 * Get the row of the audio file table corresponding to the given hash value.
473 *
474 * \param hash The hash value of the desired audio file.
475 * \param row Result pointer.
476 *
477 * \return Standard.
478 */
479 static int aft_get_row_of_hash(unsigned char *hash, struct osl_row **row)
480 {
481 const struct osl_object obj = {.data = hash, .size = HASH_SIZE};
482 return osl(osl_get_row(audio_file_table, AFTCOL_HASH, &obj, row));
483 }
484
485 /*
486 * Get the audio file selector info object of a row.
487 *
488 * \param row Pointer to a row in the audio file table.
489 * \param obj Result pointer.
490 *
491 * \return Standard.
492 */
493 static int get_afsi_object_of_row(const struct osl_row *row,
494 struct osl_object *obj)
495 {
496 return osl(osl_get_object(audio_file_table, row, AFTCOL_AFSI, obj));
497 }
498
499 /**
500 * Get the osl object holding the audio file selector info, given a path.
501 *
502 *
503 * \param path The full path of the audio file.
504 * \param obj Result pointer.
505 *
506 * \return Positive on success, negative on errors.
507 */
508 static int get_afsi_object_of_path(const char *path, struct osl_object *obj)
509 {
510 struct osl_row *row;
511 int ret = aft_get_row_of_path(path, &row);
512 if (ret < 0)
513 return ret;
514 return get_afsi_object_of_row(row, obj);
515 }
516
517 /**
518 * Get the audio file selector info, given a row of the audio file table.
519 *
520 * \param row Pointer to a row in the audio file table.
521 * \param afsi Result pointer.
522 *
523 * \return Positive on success, negative on errors.
524 */
525 int get_afsi_of_row(const struct osl_row *row, struct afs_info *afsi)
526 {
527 struct osl_object obj;
528 int ret = get_afsi_object_of_row(row, &obj);
529 if (ret < 0)
530 return ret;
531 return load_afsi(afsi, &obj);
532 }
533
534 /*
535 * Get the audio file selector info, given the path of an audio table.
536 *
537 * \param path The full path of the audio file.
538 * \param afsi Result pointer.
539 *
540 * \return Standard.
541 */
542 static int get_afsi_of_path(const char *path, struct afs_info *afsi)
543 {
544 struct osl_object obj;
545 int ret = get_afsi_object_of_path(path, &obj);
546 if (ret < 0)
547 return ret;
548 return load_afsi(afsi, &obj);
549 }
550
551 /**
552 * Get the path of an audio file, given a row of the audio file table.
553 *
554 * \param row Pointer to a row in the audio file table.
555 * \param path Result pointer.
556 *
557 * The result is a pointer to mmapped data. The caller must not attempt
558 * to free it.
559 *
560 * \return Standard.
561 */
562 int get_audio_file_path_of_row(const struct osl_row *row, char **path)
563 {
564 struct osl_object path_obj;
565 int ret = osl(osl_get_object(audio_file_table, row, AFTCOL_PATH,
566 &path_obj));
567 if (ret < 0)
568 return ret;
569 *path = path_obj.data;
570 return 1;
571 }
572
573 /**
574 * Get the object containing the hash value of an audio file, given a row.
575 *
576 * \param row Pointer to a row of the audio file table.
577 * \param obj Result pointer.
578 *
579 * \return The return value of the underlying call to osl_get_object().
580 *
581 * \sa get_hash_of_row().
582 */
583 static int get_hash_object_of_aft_row(const struct osl_row *row,
584 struct osl_object *obj)
585 {
586 return osl(osl_get_object(audio_file_table, row, AFTCOL_HASH, obj));
587 }
588
589 /**
590 * Get the hash value of an audio file, given a row of the audio file table.
591 *
592 * \param row Pointer to a row of the audio file table.
593 * \param hash Result pointer.
594 *
595 * \a hash points to mapped data and must not be freed by the caller.
596 *
597 * \return The return value of the underlying call to
598 * get_hash_object_of_aft_row().
599 */
600 static int get_hash_of_row(const struct osl_row *row, unsigned char **hash)
601 {
602 struct osl_object obj;
603 int ret = get_hash_object_of_aft_row(row, &obj);
604
605 if (ret < 0)
606 return ret;
607 *hash = obj.data;
608 return 1;
609 }
610
611 /**
612 * Get the audio format handler info, given a row of the audio file table.
613 *
614 * \param row Pointer to a row of the audio file table.
615 * \param afhi Result pointer.
616 *
617 * \return The return value of the underlying call to osl_get_object().
618 *
619 * \sa get_chunk_table_of_row().
620 */
621 int get_afhi_of_row(const struct osl_row *row, struct afh_info *afhi)
622 {
623 struct osl_object obj;
624 int ret = osl(osl_get_object(audio_file_table, row, AFTCOL_AFHI,
625 &obj));
626 if (ret < 0)
627 return ret;
628 load_afhi(obj.data, afhi);
629 return 1;
630 }
631
632 /* returns shmid on success */
633 static int save_afd(struct audio_file_data *afd)
634 {
635 size_t size = sizeof(*afd) + sizeof_chunk_table(&afd->afhi);
636 int shmid, ret = shm_new(size);
637 void *shm_afd;
638 char *buf;
639
640 if (ret < 0)
641 return ret;
642 shmid = ret;
643 ret = shm_attach(shmid, ATTACH_RW, &shm_afd);
644 if (ret < 0)
645 goto err;
646 buf = shm_afd;
647 buf += sizeof(*afd);
648 afd->max_chunk_size = save_chunk_table(&afd->afhi, buf);
649 *(struct audio_file_data *)shm_afd = *afd;
650 shm_detach(shm_afd);
651 return shmid;
652 err:
653 shm_destroy(shmid);
654 return ret;
655 }
656
657 /**
658 * Extract a afd stored in a shared memory area.
659 *
660 * Attach the shared memory area given by \a shmid, load the audio file data
661 * stored therein and detach the area afterwards. Called by vss, after
662 * receiving a positive response to the request for the next audio file.
663 +
664 * \param shmid The identifier of the shared memory area containing the afd.
665 * \param afd Result pointer.
666 *
667 * \return Standard.
668 */
669 int load_afd(int shmid, struct audio_file_data *afd)
670 {
671 void *shm_afd;
672 int ret;
673
674 ret = shm_attach(shmid, ATTACH_RO, &shm_afd);
675 if (ret < 0)
676 return ret;
677 *afd = *(struct audio_file_data *)shm_afd;
678 load_chunk_table(&afd->afhi, shm_afd + sizeof(*afd));
679 shm_detach(shm_afd);
680 return 1;
681 }
682
683 static int get_local_time(uint64_t *seconds, char *buf, size_t size,
684 time_t current_time, enum ls_listing_mode lm)
685 {
686 struct tm t;
687
688 if (!localtime_r((time_t *)seconds, &t))
689 return -E_LOCALTIME;
690 if (lm == LS_MODE_MBOX) {
691 if (!strftime(buf, size, "%c", &t))
692 return -E_STRFTIME;
693 return 1;
694 }
695 if (*seconds + 6 * 30 * 24 * 3600 > current_time) {
696 if (!strftime(buf, size, "%b %e %k:%M", &t))
697 return -E_STRFTIME;
698 return 1;
699 }
700 if (!strftime(buf, size, "%b %e %Y", &t))
701 return -E_STRFTIME;
702 return 1;
703 }
704
705 /** Compute the number of (decimal) digits of a number. */
706 #define GET_NUM_DIGITS(x, num) { \
707 typeof((x)) _tmp = PARA_ABS(x); \
708 *num = 1; \
709 if ((_tmp)) \
710 while ((_tmp) > 9) { \
711 (_tmp) /= 10; \
712 (*num)++; \
713 } \
714 }
715
716 __a_const static short unsigned get_duration_width(int seconds)
717 {
718 short unsigned width;
719 unsigned hours = seconds / 3600, mins = (seconds % 3600) / 60;
720
721 if (!hours) /* less than one hour => m:ss or mm:ss => 4 or 5 digits */
722 return 4 + (mins > 9);
723 /* more than one hour => h:mm:ss, hh:mm:ss, hhh:mm:ss, ... */
724 GET_NUM_DIGITS(hours, &width);
725 return width + 6;
726 }
727
728 static void get_duration_buf(int seconds, char *buf, struct ls_options *opts)
729 {
730 unsigned hours = seconds / 3600, mins = (seconds % 3600) / 60;
731 short unsigned max_width;
732
733 if (!hours) { /* m:ss or mm:ss */
734 max_width = opts->mode == LS_MODE_LONG?
735 opts->widths.duration_width : 4;
736 sprintf(buf, "%*u:%02u", max_width - 3, mins, seconds % 60);
737 } else { /* more than one hour => h:mm:ss, hh:mm:ss, hhh:mm:ss, ... */
738 max_width = opts->mode == LS_MODE_LONG?
739 opts->widths.duration_width : 7;
740 sprintf(buf, "%*u:%02u:%02u", max_width - 6, hours, mins,
741 seconds % 60);
742 }
743 }
744
745 static int write_attribute_items(struct para_buffer *b,
746 const char *att_bitmap, struct afs_info *afsi)
747 {
748 char *att_text;
749 int ret;
750
751 ret = WRITE_STATUS_ITEM(b, SI_ATTRIBUTES_BITMAP, "%s\n", att_bitmap);
752 if (ret < 0)
753 return ret;
754 ret = get_attribute_text(&afsi->attributes, " ", &att_text);
755 if (ret < 0)
756 return ret;
757 ret = WRITE_STATUS_ITEM(b, SI_ATTRIBUTES_TXT, "%s\n", att_text);
758 free(att_text);
759 return ret;
760 }
761
762 static int write_lyrics_items(struct para_buffer *b, struct afs_info *afsi)
763 {
764 char *lyrics_name;
765 int ret;
766
767 ret = WRITE_STATUS_ITEM(b, SI_LYRICS_ID, "%u\n", afsi->lyrics_id);
768 if (ret < 0)
769 return ret;
770 lyr_get_name_by_id(afsi->lyrics_id, &lyrics_name);
771 return WRITE_STATUS_ITEM(b, SI_LYRICS_NAME, "%s\n", lyrics_name?
772 lyrics_name : "(none)");
773 }
774
775 static int write_image_items(struct para_buffer *b, struct afs_info *afsi)
776 {
777 char *image_name;
778 int ret;
779
780 ret = WRITE_STATUS_ITEM(b, SI_IMAGE_ID, "%u\n", afsi->image_id);
781 if (ret < 0)
782 return ret;
783 img_get_name_by_id(afsi->image_id, &image_name);
784 return WRITE_STATUS_ITEM(b, SI_IMAGE_NAME, "%s\n", image_name?
785 image_name : "(none)");
786 }
787
788 static int write_filename_items(struct para_buffer *b, const char *path,
789 unsigned flags)
790 {
791 char *val;
792 int ret;
793
794 if (!(flags & LS_FLAG_FULL_PATH))
795 return WRITE_STATUS_ITEM(b, SI_BASENAME, "%s\n", path);
796 ret = WRITE_STATUS_ITEM(b, SI_PATH, "%s\n", path);
797 if (ret < 0)
798 return ret;
799 val = para_basename(path);
800 ret = WRITE_STATUS_ITEM(b, SI_BASENAME, "%s\n", val? val : "");
801 if (ret < 0)
802 return ret;
803 val = para_dirname(path);
804 ret = WRITE_STATUS_ITEM(b, SI_DIRECTORY, "%s\n", val? val : "");
805 free(val);
806 return ret;
807 }
808
809 static int print_chunk_table(struct ls_data *d, struct para_buffer *b)
810 {
811 struct osl_object chunk_table_obj;
812 struct osl_row *aft_row;
813 int ret, i;
814 char *buf;
815
816 ret = aft_get_row_of_hash(d->hash, &aft_row);
817 if (ret < 0)
818 return ret;
819 ret = osl(osl_open_disk_object(audio_file_table, aft_row,
820 AFTCOL_CHUNKS, &chunk_table_obj));
821 if (ret < 0)
822 return ret;
823 ret = para_printf(b, "%s\n"
824 "chunk_time: %lu:%lu\nchunk_offsets: ",
825 d->path,
826 (long unsigned) d->afhi.chunk_tv.tv_sec,
827 (long unsigned) d->afhi.chunk_tv.tv_usec
828 );
829 if (ret < 0)
830 goto out;
831 buf = chunk_table_obj.data;
832 for (i = 0; i <= d->afhi.chunks_total; i++) {
833 ret = para_printf(b, "%u ", (unsigned) read_u32(buf + 4 * i));
834 if (ret < 0)
835 goto out;
836 }
837 ret = para_printf(b, "\n");
838 out:
839 osl_close_disk_object(&chunk_table_obj);
840 return ret;
841 }
842
843 static int write_score(struct para_buffer *b, struct ls_data *d,
844 struct ls_options *opts)
845 {
846 if (!(opts->flags & LS_FLAG_ADMISSIBLE_ONLY)) /* no score*/
847 return 0;
848 return WRITE_STATUS_ITEM(b, SI_SCORE, "%li\n", d->score);
849 }
850
851 static int print_list_item(struct ls_data *d, struct ls_options *opts,
852 struct para_buffer *b, time_t current_time)
853 {
854 int ret;
855 char att_buf[65];
856 char last_played_time[30];
857 char duration_buf[30]; /* nobody has an audio file long enough to overflow this */
858 struct afs_info *afsi = &d->afsi;
859 struct afh_info *afhi = &d->afhi;
860 char asc_hash[2 * HASH_SIZE + 1];
861
862 if (opts->mode == LS_MODE_SHORT) {
863 ret = para_printf(b, "%s\n", d->path);
864 goto out;
865 }
866 if (opts->mode == LS_MODE_CHUNKS) {
867 ret = print_chunk_table(d, b);
868 goto out;
869 }
870 get_attribute_bitmap(&afsi->attributes, att_buf);
871 if (opts->flags & LS_FLAG_UNIXDATE)
872 sprintf(last_played_time, "%llu",
873 (long long unsigned)afsi->last_played);
874 else {
875 ret = get_local_time(&afsi->last_played, last_played_time,
876 sizeof(last_played_time), current_time, opts->mode);
877 if (ret < 0)
878 goto out;
879 }
880 get_duration_buf(afhi->seconds_total, duration_buf, opts);
881 if (opts->mode == LS_MODE_LONG) {
882 struct ls_widths *w = &opts->widths;
883 if (opts->flags & LS_FLAG_ADMISSIBLE_ONLY) {
884 ret = para_printf(b, "%*li ",
885 opts->widths.score_width, d->score);
886 if (ret < 0)
887 goto out;
888 }
889 ret = para_printf(b,
890 "%s " /* attributes */
891 "%*u " /* amp */
892 "%*d " /* image_id */
893 "%*d " /* lyrics_id */
894 "%*d " /* bitrate */
895 "%*s " /* audio format */
896 "%*d " /* frequency */
897 "%d " /* channels */
898 "%s " /* duration */
899 "%*d " /* num_played */
900 "%s " /* last_played */
901 "%s\n", /* path */
902 att_buf,
903 w->amp_width, afsi->amp,
904 w->image_id_width, afsi->image_id,
905 w->lyrics_id_width, afsi->lyrics_id,
906 w->bitrate_width, afhi->bitrate,
907 w->audio_format_width,
908 audio_format_name(afsi->audio_format_id),
909 w->frequency_width, afhi->frequency,
910 afhi->channels,
911 duration_buf,
912 w->num_played_width, afsi->num_played,
913 last_played_time,
914 d->path
915 );
916 goto out;
917 }
918 if (opts->mode == LS_MODE_MBOX) {
919 const char *bn = para_basename(d->path);
920 ret = para_printf(b,
921 "From foo@localhost %s\n"
922 "Received: from\nTo: bar\nFrom: a\n"
923 "Subject: %s\n\n",
924 last_played_time,
925 bn? bn : "?");
926 if (ret < 0)
927 goto out;
928 }
929 ret = write_filename_items(b, d->path, opts->flags);
930 if (ret < 0)
931 goto out;
932 ret = write_score(b, d, opts);
933 if (ret < 0)
934 goto out;
935 ret = write_attribute_items(b, att_buf, afsi);
936 if (ret < 0)
937 goto out;
938 ret = write_image_items(b, afsi);
939 if (ret < 0)
940 goto out;
941 ret = write_lyrics_items(b, afsi);
942 if (ret < 0)
943 goto out;
944 hash_to_asc(d->hash, asc_hash);
945 ret = WRITE_STATUS_ITEM(b, SI_HASH, "%s\n", asc_hash);
946 if (ret < 0)
947 goto out;
948 ret = WRITE_STATUS_ITEM(b, SI_BITRATE, "%dkbit/s\n", afhi->bitrate);
949 if (ret < 0)
950 goto out;
951 ret = WRITE_STATUS_ITEM(b, SI_FORMAT, "%s\n",
952 audio_format_name(afsi->audio_format_id));
953 if (ret < 0)
954 goto out;
955 ret = WRITE_STATUS_ITEM(b, SI_FREQUENCY, "%dHz\n", afhi->frequency);
956 if (ret < 0)
957 goto out;
958 ret = WRITE_STATUS_ITEM(b, SI_CHANNELS, "%d\n", afhi->channels);
959 if (ret < 0)
960 goto out;
961 ret = WRITE_STATUS_ITEM(b, SI_DURATION, "%s\n", duration_buf);
962 if (ret < 0)
963 goto out;
964 ret = WRITE_STATUS_ITEM(b, SI_SECONDS_TOTAL, "%lu\n",
965 afhi->seconds_total);
966 if (ret < 0)
967 goto out;
968 ret = WRITE_STATUS_ITEM(b, SI_LAST_PLAYED, "%s\n", last_played_time);
969 if (ret < 0)
970 goto out;
971 ret = WRITE_STATUS_ITEM(b, SI_NUM_PLAYED, "%d\n", afsi->num_played);
972 if (ret < 0)
973 goto out;
974 ret = WRITE_STATUS_ITEM(b, SI_AMPLIFICATION, "%u\n", afsi->amp);
975 if (ret < 0)
976 goto out;
977 ret = WRITE_STATUS_ITEM(b, SI_CHUNK_TIME, "%lu\n",
978 tv2ms(&afhi->chunk_tv));
979 if (ret < 0)
980 goto out;
981 ret = WRITE_STATUS_ITEM(b, SI_NUM_CHUNKS, "%lu\n",
982 afhi->chunks_total);
983 if (ret < 0)
984 goto out;
985 ret = WRITE_STATUS_ITEM(b, SI_TECHINFO, "%s\n", afhi->techinfo);
986 if (ret < 0)
987 goto out;
988 ret = WRITE_STATUS_ITEM(b, SI_ARTIST, "%s\n", afhi->tags.artist);
989 if (ret < 0)
990 goto out;
991 ret = WRITE_STATUS_ITEM(b, SI_TITLE, "%s\n", afhi->tags.title);
992 if (ret < 0)
993 goto out;
994 ret = WRITE_STATUS_ITEM(b, SI_YEAR, "%s\n", afhi->tags.year);
995 if (ret < 0)
996 goto out;
997 ret = WRITE_STATUS_ITEM(b, SI_ALBUM, "%s\n", afhi->tags.album);
998 if (ret < 0)
999 goto out;
1000 ret = WRITE_STATUS_ITEM(b, SI_COMMENT, "%s\n", afhi->tags.comment);
1001 if (ret < 0)
1002 goto out;
1003 if (opts->mode == LS_MODE_MBOX) {
1004 struct osl_object lyrics_def;
1005 lyr_get_def_by_id(afsi->lyrics_id, &lyrics_def);
1006 if (lyrics_def.data) {
1007 ret = para_printf(b, "Lyrics:\n~~~~~~~\n%s",
1008 (char *)lyrics_def.data);
1009 osl_close_disk_object(&lyrics_def);
1010 }
1011 }
1012 out:
1013 return ret;
1014 }
1015
1016 static struct ls_data status_item_ls_data;
1017 static struct osl_row *current_aft_row;
1018
1019 static void make_inode_status_items(struct para_buffer *pb)
1020 {
1021 struct stat statbuf = {.st_size = 0};
1022 char *path, mtime_str[30] = "\0";
1023 struct tm mtime_tm;
1024 int ret;
1025
1026 ret = get_audio_file_path_of_row(current_aft_row, &path);
1027 if (ret < 0)
1028 goto out;
1029 ret = stat(path, &statbuf);
1030 if (ret < 0)
1031 goto out;
1032 localtime_r(&statbuf.st_mtime, &mtime_tm);
1033 ret = strftime(mtime_str, 29, "%b %d %Y", &mtime_tm);
1034 assert(ret > 0); /* number of bytes placed in mtime_str */
1035 out:
1036 /* We don't care too much about errors here */
1037 (void)WRITE_STATUS_ITEM(pb, SI_MTIME, "%s\n", mtime_str);
1038 (void)WRITE_STATUS_ITEM(pb, SI_FILE_SIZE, "%ld\n", statbuf.st_size / 1024);
1039 }
1040
1041 static int make_status_items(void)
1042 {
1043 struct ls_options opts = {
1044 .flags = LS_FLAG_FULL_PATH | LS_FLAG_ADMISSIBLE_ONLY,
1045 .mode = LS_MODE_VERBOSE,
1046 };
1047 struct para_buffer pb = {.max_size = shm_get_shmmax() - 1};
1048 time_t current_time;
1049 int ret;
1050
1051 time(&current_time);
1052 ret = print_list_item(&status_item_ls_data, &opts, &pb, current_time);
1053 if (ret < 0)
1054 return ret;
1055 make_inode_status_items(&pb);
1056 free(status_items);
1057 status_items = pb.buf;
1058 memset(&pb, 0, sizeof(pb));
1059 pb.max_size = shm_get_shmmax() - 1;
1060 pb.flags = PBF_SIZE_PREFIX;
1061 ret = print_list_item(&status_item_ls_data, &opts, &pb, current_time);
1062 if (ret < 0) {
1063 free(status_items);
1064 status_items = NULL;
1065 return ret;
1066 }
1067 make_inode_status_items(&pb);
1068 free(parser_friendly_status_items);
1069 parser_friendly_status_items = pb.buf;
1070 return 1;
1071 }
1072
1073 /**
1074 * Open the audio file with highest score and set up an afd structure.
1075 *
1076 * \param afd Result pointer.
1077 *
1078 * On success, the numplayed field of the audio file selector info is increased
1079 * and the lastplayed time is set to the current time. Finally, the score of
1080 * the audio file is updated.
1081 *
1082 * \return Positive shmid on success, negative on errors.
1083 */
1084 int open_and_update_audio_file(struct audio_file_data *afd)
1085 {
1086 unsigned char file_hash[HASH_SIZE];
1087 struct osl_object afsi_obj;
1088 struct afs_info new_afsi;
1089 int ret;
1090 struct afsi_change_event_data aced;
1091 struct osl_object map, chunk_table_obj;
1092 struct ls_data *d = &status_item_ls_data;
1093 again:
1094 ret = score_get_best(&current_aft_row, &d->score);
1095 if (ret < 0)
1096 return ret;
1097 ret = get_hash_of_row(current_aft_row, &d->hash);
1098 if (ret < 0)
1099 return ret;
1100 ret = get_audio_file_path_of_row(current_aft_row, &d->path);
1101 if (ret < 0)
1102 return ret;
1103 PARA_NOTICE_LOG("%s\n", d->path);
1104 ret = get_afsi_object_of_row(current_aft_row, &afsi_obj);
1105 if (ret < 0)
1106 return ret;
1107 ret = load_afsi(&d->afsi, &afsi_obj);
1108 if (ret < 0)
1109 return ret;
1110 ret = get_afhi_of_row(current_aft_row, &afd->afhi);
1111 if (ret < 0)
1112 return ret;
1113 d->afhi = afd->afhi;
1114 d->afhi.chunk_table = afd->afhi.chunk_table = NULL;
1115 ret = osl(osl_open_disk_object(audio_file_table, current_aft_row,
1116 AFTCOL_CHUNKS, &chunk_table_obj));
1117 if (ret < 0)
1118 return ret;
1119 ret = mmap_full_file(d->path, O_RDONLY, &map.data, &map.size, &afd->fd);
1120 if (ret < 0)
1121 goto out;
1122 hash_function(map.data, map.size, file_hash);
1123 ret = hash_compare(file_hash, d->hash);
1124 para_munmap(map.data, map.size);
1125 if (ret) {
1126 ret = -E_HASH_MISMATCH;
1127 goto out;
1128 }
1129 new_afsi = d->afsi;
1130 new_afsi.num_played++;
1131 new_afsi.last_played = time(NULL);
1132 save_afsi(&new_afsi, &afsi_obj); /* in-place update */
1133
1134 afd->audio_format_id = d->afsi.audio_format_id;
1135 load_chunk_table(&afd->afhi, chunk_table_obj.data);
1136 aced.aft_row = current_aft_row;
1137 aced.old_afsi = &d->afsi;
1138 /*
1139 * No need to update the status items as the AFSI_CHANGE event will
1140 * recreate them.
1141 */
1142 afs_event(AFSI_CHANGE, NULL, &aced);
1143 ret = save_afd(afd);
1144 out:
1145 free(afd->afhi.chunk_table);
1146 osl_close_disk_object(&chunk_table_obj);
1147 if (ret < 0) {
1148 PARA_ERROR_LOG("%s: %s\n", d->path, para_strerror(-ret));
1149 ret = score_delete(current_aft_row);
1150 if (ret >= 0)
1151 goto again;
1152 }
1153 return ret;
1154 }
1155
1156 static int ls_audio_format_compare(const void *a, const void *b)
1157 {
1158 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1159 return NUM_COMPARE(d1->afsi.audio_format_id, d2->afsi.audio_format_id);
1160 }
1161
1162 static int ls_duration_compare(const void *a, const void *b)
1163 {
1164 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1165 return NUM_COMPARE(d1->afhi.seconds_total, d2->afhi.seconds_total);
1166 }
1167
1168 static int ls_bitrate_compare(const void *a, const void *b)
1169 {
1170 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1171 return NUM_COMPARE(d1->afhi.bitrate, d2->afhi.bitrate);
1172 }
1173
1174 static int ls_lyrics_id_compare(const void *a, const void *b)
1175 {
1176 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1177 return NUM_COMPARE(d1->afsi.lyrics_id, d2->afsi.lyrics_id);
1178 }
1179
1180 static int ls_image_id_compare(const void *a, const void *b)
1181 {
1182 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1183 return NUM_COMPARE(d1->afsi.image_id, d2->afsi.image_id);
1184 }
1185
1186 static int ls_channels_compare(const void *a, const void *b)
1187 {
1188 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1189 return NUM_COMPARE(d1->afhi.channels, d2->afhi.channels);
1190 }
1191
1192 static int ls_frequency_compare(const void *a, const void *b)
1193 {
1194 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1195 return NUM_COMPARE(d1->afhi.frequency, d2->afhi.frequency);
1196 }
1197
1198 static int ls_num_played_compare(const void *a, const void *b)
1199 {
1200 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1201 return NUM_COMPARE(d1->afsi.num_played, d2->afsi.num_played);
1202 }
1203
1204 static int ls_last_played_compare(const void *a, const void *b)
1205 {
1206 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1207 return NUM_COMPARE(d1->afsi.last_played, d2->afsi.last_played);
1208 }
1209
1210 static int ls_score_compare(const void *a, const void *b)
1211 {
1212 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1213 return NUM_COMPARE(d1->score, d2->score);
1214 }
1215
1216 static int ls_path_compare(const void *a, const void *b)
1217 {
1218 struct ls_data *d1 = *(struct ls_data **)a, *d2 = *(struct ls_data **)b;
1219 return strcmp(d1->path, d2->path);
1220 }
1221
1222 static int sort_matching_paths(struct ls_options *options)
1223 {
1224 size_t nmemb = options->num_matching_paths;
1225 size_t size = sizeof(*options->data_ptr);
1226 int (*compar)(const void *, const void *);
1227 int i;
1228
1229 options->data_ptr = para_malloc(nmemb * sizeof(*options->data_ptr));
1230 for (i = 0; i < nmemb; i++)
1231 options->data_ptr[i] = options->data + i;
1232
1233 /* In these cases the array is already sorted */
1234 if (options->sorting == LS_SORT_BY_PATH
1235 && !(options->flags & LS_FLAG_ADMISSIBLE_ONLY)
1236 && (options->flags & LS_FLAG_FULL_PATH))
1237 return 1;
1238 if (options->sorting == LS_SORT_BY_SCORE &&
1239 options->flags & LS_FLAG_ADMISSIBLE_ONLY)
1240 return 1;
1241
1242 switch (options->sorting) {
1243 case LS_SORT_BY_PATH:
1244 compar = ls_path_compare; break;
1245 case LS_SORT_BY_SCORE:
1246 compar = ls_score_compare; break;
1247 case LS_SORT_BY_LAST_PLAYED:
1248 compar = ls_last_played_compare; break;
1249 case LS_SORT_BY_NUM_PLAYED:
1250 compar = ls_num_played_compare; break;
1251 case LS_SORT_BY_FREQUENCY:
1252 compar = ls_frequency_compare; break;
1253 case LS_SORT_BY_CHANNELS:
1254 compar = ls_channels_compare; break;
1255 case LS_SORT_BY_IMAGE_ID:
1256 compar = ls_image_id_compare; break;
1257 case LS_SORT_BY_LYRICS_ID:
1258 compar = ls_lyrics_id_compare; break;
1259 case LS_SORT_BY_BITRATE:
1260 compar = ls_bitrate_compare; break;
1261 case LS_SORT_BY_DURATION:
1262 compar = ls_duration_compare; break;
1263 case LS_SORT_BY_AUDIO_FORMAT:
1264 compar = ls_audio_format_compare; break;
1265 default:
1266 return -E_BAD_SORT;
1267 }
1268 qsort(options->data_ptr, nmemb, size, compar);
1269 return 1;
1270 }
1271
1272 /* row is either an aft_row or a row of the score table */
1273 /* TODO: Only compute widths if we need them */
1274 static int prepare_ls_row(struct osl_row *row, void *ls_opts)
1275 {
1276 int ret, i;
1277 struct ls_options *options = ls_opts;
1278 struct ls_data *d;
1279 struct ls_widths *w;
1280 unsigned short num_digits;
1281 unsigned tmp;
1282 struct osl_row *aft_row;
1283 long score;
1284 char *path;
1285
1286 if (options->flags & LS_FLAG_ADMISSIBLE_ONLY) {
1287 ret = get_score_and_aft_row(row, &score, &aft_row);
1288 if (ret < 0)
1289 return ret;
1290 } else {
1291 aft_row = row;
1292 score = 0;
1293 }
1294 ret = get_audio_file_path_of_row(aft_row, &path);
1295 if (ret < 0)
1296 return ret;
1297 if (!(options->flags & LS_FLAG_FULL_PATH)) {
1298 char *p = strrchr(path, '/');
1299 if (p)
1300 path = p + 1;
1301 }
1302 if (options->num_patterns) {
1303 for (i = 0; i < options->num_patterns; i++) {
1304 ret = fnmatch(options->patterns[i], path, 0);
1305 if (!ret)
1306 break;
1307 if (ret == FNM_NOMATCH)
1308 continue;
1309 return -E_FNMATCH;
1310 }
1311 if (i >= options->num_patterns) /* no match */
1312 return 1;
1313 }
1314 tmp = options->num_matching_paths++;
1315 if (options->num_matching_paths > options->array_size) {
1316 options->array_size++;
1317 options->array_size *= 2;
1318 options->data = para_realloc(options->data, options->array_size
1319 * sizeof(*options->data));
1320 }
1321 d = options->data + tmp;
1322 ret = get_afsi_of_row(aft_row, &d->afsi);
1323 if (ret < 0)
1324 return ret;
1325 ret = get_afhi_of_row(aft_row, &d->afhi);
1326 if (ret < 0)
1327 return ret;
1328 d->path = path;
1329 ret = get_hash_of_row(aft_row, &d->hash);
1330 if (ret < 0)
1331 goto err;
1332 w = &options->widths;
1333 GET_NUM_DIGITS(d->afsi.image_id, &num_digits);
1334 w->image_id_width = PARA_MAX(w->image_id_width, num_digits);
1335 GET_NUM_DIGITS(d->afsi.lyrics_id, &num_digits);
1336 w->lyrics_id_width = PARA_MAX(w->lyrics_id_width, num_digits);
1337 GET_NUM_DIGITS(d->afhi.bitrate, &num_digits);
1338 w->bitrate_width = PARA_MAX(w->bitrate_width, num_digits);
1339 GET_NUM_DIGITS(d->afhi.frequency, &num_digits);
1340 w->frequency_width = PARA_MAX(w->frequency_width, num_digits);
1341 GET_NUM_DIGITS(d->afsi.num_played, &num_digits);
1342 w->num_played_width = PARA_MAX(w->num_played_width, num_digits);
1343 /* get the number of chars to print this amount of time */
1344 num_digits = get_duration_width(d->afhi.seconds_total);
1345 w->duration_width = PARA_MAX(w->duration_width, num_digits);
1346 GET_NUM_DIGITS(d->afsi.amp, &num_digits);
1347 w->amp_width = PARA_MAX(w->amp_width, num_digits);
1348 num_digits = strlen(audio_format_name(d->afsi.audio_format_id));
1349 w->audio_format_width = PARA_MAX(w->audio_format_width, num_digits);
1350 if (options->flags & LS_FLAG_ADMISSIBLE_ONLY) {
1351 GET_NUM_DIGITS(score, &num_digits);
1352 num_digits++; /* add one for the sign (space or "-") */
1353 w->score_width = PARA_MAX(w->score_width, num_digits);
1354 d->score = score;
1355 }
1356 return 1;
1357 err:
1358 return ret;
1359 }
1360
1361 static void com_ls_callback(int fd, const struct osl_object *query)
1362 {
1363 struct ls_options *opts = query->data;
1364 char *p, *pattern_start = (char *)query->data + sizeof(*opts);
1365 struct para_buffer b = {
1366 .max_size = shm_get_shmmax(),
1367 .flags = (opts->mode == LS_MODE_PARSER)? PBF_SIZE_PREFIX : 0,
1368 .max_size_handler = afs_max_size_handler,
1369 .private_data = &(struct afs_max_size_handler_data) {
1370 .fd = fd,
1371 .band = SBD_OUTPUT
1372 }
1373 };
1374 int i = 0, ret;
1375 time_t current_time;
1376
1377 if (opts->num_patterns) {
1378 opts->patterns = para_malloc(opts->num_patterns * sizeof(char *));
1379 for (i = 0, p = pattern_start; i < opts->num_patterns; i++) {
1380 opts->patterns[i] = p;
1381 p += strlen(p) + 1;
1382 }
1383 } else
1384 opts->patterns = NULL;
1385 if (opts->flags & LS_FLAG_ADMISSIBLE_ONLY)
1386 ret = admissible_file_loop(opts, prepare_ls_row);
1387 else
1388 ret = osl(osl_rbtree_loop(audio_file_table, AFTCOL_PATH, opts,
1389 prepare_ls_row));
1390 if (ret < 0)
1391 goto out;
1392 if (opts->num_matching_paths == 0) {
1393 if (opts->num_patterns > 0)
1394 para_printf(&b, "no matches\n");
1395 goto out;
1396 }
1397 ret = sort_matching_paths(opts);
1398 if (ret < 0)
1399 goto out;
1400 time(&current_time);
1401 if (opts->flags & LS_FLAG_REVERSE)
1402 for (i = opts->num_matching_paths - 1; i >= 0; i--) {
1403 ret = print_list_item(opts->data_ptr[i], opts, &b, current_time);
1404 if (ret < 0)
1405 goto out;
1406 }
1407 else
1408 for (i = 0; i < opts->num_matching_paths; i++) {
1409 ret = print_list_item(opts->data_ptr[i], opts, &b, current_time);
1410 if (ret < 0)
1411 goto out;
1412 }
1413 out:
1414 if (b.offset)
1415 pass_buffer_as_shm(fd, SBD_OUTPUT, b.buf, b.offset);
1416 free(b.buf);
1417 free(opts->data);
1418 free(opts->data_ptr);
1419 free(opts->patterns);
1420 }
1421
1422 /*
1423 * TODO: flags -h (sort by hash)
1424 */
1425 int com_ls(struct command_context *cc)
1426 {
1427 int i, ret;
1428 unsigned flags = 0;
1429 enum ls_sorting_method sort = LS_SORT_BY_PATH;
1430 enum ls_listing_mode mode = LS_MODE_SHORT;
1431 struct ls_options opts = {.patterns = NULL};
1432 struct osl_object query = {.data = &opts, .size = sizeof(opts)};
1433
1434 for (i = 1; i < cc->argc; i++) {
1435 const char *arg = cc->argv[i];
1436 if (arg[0] != '-')
1437 break;
1438 if (!strcmp(arg, "--")) {
1439 i++;
1440 break;
1441 }
1442 /*
1443 * Compatibility: Prior to 0.5.5 it was necessary to specify
1444 * the listing mode without the '=' character as in -lv, for
1445 * example. Now the variant with '=' is preferred and
1446 * documented but we still accept the old way to specify the
1447 * listing mode.
1448 *
1449 * Support for the legacy syntax can be dropped at 0.6.0
1450 * or later.
1451 */
1452 if (!strncmp(arg, "-l", 2)) {
1453 arg += 2;
1454 if (*arg == '=')
1455 arg++;
1456 switch (*arg) {
1457 case 's':
1458 mode = LS_MODE_SHORT;
1459 continue;
1460 case 'l':
1461 case '\0':
1462 mode = LS_MODE_LONG;
1463 continue;
1464 case 'v':
1465 mode = LS_MODE_VERBOSE;
1466 continue;
1467 case 'm':
1468 mode = LS_MODE_MBOX;
1469 continue;
1470 case 'c':
1471 mode = LS_MODE_CHUNKS;
1472 continue;
1473 case 'p':
1474 mode = LS_MODE_PARSER;
1475 continue;
1476 default:
1477 return -E_AFT_SYNTAX;
1478 }
1479 }
1480 if (!strcmp(arg, "-p")) {
1481 flags |= LS_FLAG_FULL_PATH;
1482 continue;
1483 }
1484 if (!strcmp(arg, "-a")) {
1485 flags |= LS_FLAG_ADMISSIBLE_ONLY;
1486 continue;
1487 }
1488 if (!strcmp(arg, "-r")) {
1489 flags |= LS_FLAG_REVERSE;
1490 continue;
1491 }
1492 if (!strcmp(arg, "-d")) {
1493 flags |= LS_FLAG_UNIXDATE;
1494 continue;
1495 }
1496 /* The compatibility remark above applies also to -s. */
1497 if (!strncmp(arg, "-s", 2)) {
1498 arg += 2;
1499 if (*arg == '=')
1500 arg++;
1501 switch (*arg) {
1502 case 'p':
1503 sort = LS_SORT_BY_PATH;
1504 continue;
1505 case 's': /* -ss implies -a */
1506 sort = LS_SORT_BY_SCORE;
1507 flags |= LS_FLAG_ADMISSIBLE_ONLY;
1508 continue;
1509 case 'l':
1510 sort = LS_SORT_BY_LAST_PLAYED;
1511 continue;
1512 case 'n':
1513 sort = LS_SORT_BY_NUM_PLAYED;
1514 continue;
1515 case 'f':
1516 sort = LS_SORT_BY_FREQUENCY;
1517 continue;
1518 case 'c':
1519 sort = LS_SORT_BY_CHANNELS;
1520 continue;
1521 case 'i':
1522 sort = LS_SORT_BY_IMAGE_ID;
1523 continue;
1524 case 'y':
1525 sort = LS_SORT_BY_LYRICS_ID;
1526 continue;
1527 case 'b':
1528 sort = LS_SORT_BY_BITRATE;
1529 continue;
1530 case 'd':
1531 sort = LS_SORT_BY_DURATION;
1532 continue;
1533 case 'a':
1534 sort = LS_SORT_BY_AUDIO_FORMAT;
1535 continue;
1536 default:
1537 return -E_AFT_SYNTAX;
1538 }
1539 }
1540 return -E_AFT_SYNTAX;
1541 }
1542 opts.flags = flags;
1543 opts.sorting = sort;
1544 opts.mode = mode;
1545 opts.num_patterns = cc->argc - i;
1546 ret = send_option_arg_callback_request(&query, opts.num_patterns,
1547 cc->argv + i, com_ls_callback, afs_cb_result_handler, cc);
1548 return ret;
1549 }
1550
1551 /**
1552 * Call the given function for each file in the audio file table.
1553 *
1554 * \param private_data An arbitrary data pointer, passed to \a func.
1555 * \param func The custom function to be called.
1556 *
1557 * \return Standard.
1558 */
1559 int audio_file_loop(void *private_data, osl_rbtree_loop_func *func)
1560 {
1561 return osl(osl_rbtree_loop(audio_file_table, AFTCOL_HASH, private_data,
1562 func));
1563 }
1564
1565 static struct osl_row *find_hash_sister(unsigned char *hash)
1566 {
1567 const struct osl_object obj = {.data = hash, .size = HASH_SIZE};
1568 struct osl_row *row;
1569
1570 osl_get_row(audio_file_table, AFTCOL_HASH, &obj, &row);
1571 return row;
1572 }
1573
1574 /** The format of the data stored by save_audio_file_data(). */
1575 enum com_add_buffer_offsets {
1576 /** afhi (if present) starts here. */
1577 CAB_AFHI_OFFSET_POS = 0,
1578 /** Start of the chunk table (if present). */
1579 CAB_CHUNKS_OFFSET_POS = 2,
1580 /** Audio format id. */
1581 CAB_AUDIO_FORMAT_OFFSET = 4,
1582 /** Flags given to the add command. */
1583 CAB_FLAGS_OFFSET = 5,
1584 /** The hash of the audio file being added. */
1585 CAB_HASH_OFFSET = 9,
1586 /** Start of the path of the audio file. */
1587 CAB_PATH_OFFSET = (CAB_HASH_OFFSET + HASH_SIZE),
1588 };
1589
1590 /*
1591 * Store the given data to a single buffer. Doesn't need the audio file selector
1592 * info struct as the server knows it as well.
1593 *
1594 * It's OK to call this with afhi == NULL. In this case, the audio format
1595 * handler info won't be stored in the buffer.
1596 */
1597 static void save_add_callback_buffer(unsigned char *hash, const char *path,
1598 struct afh_info *afhi, uint32_t flags,
1599 uint8_t audio_format_num, struct osl_object *obj)
1600 {
1601 size_t path_len = strlen(path) + 1;
1602 size_t afhi_size = sizeof_afhi_buf(afhi);
1603 size_t size = CAB_PATH_OFFSET + path_len + afhi_size
1604 + sizeof_chunk_table(afhi);
1605 char *buf = para_malloc(size);
1606 uint16_t pos;
1607
1608 write_u8(buf + CAB_AUDIO_FORMAT_OFFSET, audio_format_num);
1609 write_u32(buf + CAB_FLAGS_OFFSET, flags);
1610
1611 memcpy(buf + CAB_HASH_OFFSET, hash, HASH_SIZE);
1612 strcpy(buf + CAB_PATH_OFFSET, path);
1613
1614 pos = CAB_PATH_OFFSET + path_len;
1615 PARA_DEBUG_LOG("size: %zu, afhi starts at %d\n", size, pos);
1616 PARA_DEBUG_LOG("last afhi byte: %p, pos %zu\n", buf + pos + afhi_size - 1,
1617 pos + afhi_size - 1);
1618 write_u16(buf + CAB_AFHI_OFFSET_POS, pos);
1619 save_afhi(afhi, buf + pos);
1620
1621 pos += afhi_size;
1622 PARA_DEBUG_LOG("size: %zu, chunks start at %d\n", size, pos);
1623 write_u16(buf + CAB_CHUNKS_OFFSET_POS, pos);
1624 if (afhi)
1625 save_chunk_table(afhi, buf + pos);
1626 PARA_DEBUG_LOG("last byte in buf: %p\n", buf + size - 1);
1627 obj->data = buf;
1628 obj->size = size;
1629 }
1630
1631 /*
1632
1633 Overview of the add command.
1634
1635 Input: What was passed to the callback by the command handler.
1636 ~~~~~~
1637 HS: Hash sister. Whether an audio file with identical hash
1638 already exists in the osl database.
1639
1640 PB: Path brother. Whether a file with the given path exists
1641 in the table.
1642
1643 F: Force flag given. Whether add was called with -f.
1644
1645 output: Action performed by the callback.
1646 ~~~~~~~
1647 AFHI: Whether afhi and chunk table are computed and sent.
1648 ACTION: Table modifications to be done by the callback.
1649
1650 +----+----+---+------+---------------------------------------------------+
1651 | HS | PB | F | AFHI | ACTION
1652 +----+----+---+------+---------------------------------------------------+
1653 | Y | Y | Y | Y | if HS != PB: remove PB. HS: force afhi update,
1654 | | update path, keep afsi
1655 +----+----+---+------+---------------------------------------------------+
1656 | Y | Y | N | N | if HS == PB: do not send callback request at all.
1657 | | otherwise: remove PB, HS: update path, keep afhi,
1658 | | afsi.
1659 +----+----+---+------+---------------------------------------------------+
1660 | Y | N | Y | Y | (rename) force afhi update of HS, update path of
1661 | | HS, keep afsi
1662 +----+----+---+------+---------------------------------------------------+
1663 | Y | N | N | N | (file rename) update path of HS, keep afsi, afhi
1664 +----+----+---+------+---------------------------------------------------+
1665 | N | Y | Y | Y | (file change) update afhi, hash, of PB, keep afsi
1666 | | (force has no effect)
1667 +----+----+---+------+---------------------------------------------------+
1668 | N | Y | N | Y | (file change) update afhi, hash of PB, keep afsi
1669 +----+----+---+------+---------------------------------------------------+
1670 | N | N | Y | Y | (new file) create new entry (force has no effect)
1671 +----+----+---+------+---------------------------------------------------+
1672 | N | N | N | Y | (new file) create new entry
1673 +----+----+---+------+---------------------------------------------------+
1674
1675 Notes:
1676
1677 afhi <=> force or no HS
1678 F => AFHI
1679
1680 */
1681
1682 /** Flags passed to the add command. */
1683 enum com_add_flags {
1684 /** Skip paths that exist already. */
1685 ADD_FLAG_LAZY = 1,
1686 /** Force adding. */
1687 ADD_FLAG_FORCE = 2,
1688 /** Print what is being done. */
1689 ADD_FLAG_VERBOSE = 4,
1690 /** Try to add files with unknown suffixes. */
1691 ADD_FLAG_ALL = 8,
1692 };
1693
1694 static void com_add_callback(int fd, const struct osl_object *query)
1695 {
1696 char *buf = query->data, *path;
1697 struct osl_row *pb, *aft_row;
1698 struct osl_row *hs;
1699 struct osl_object objs[NUM_AFT_COLUMNS];
1700 unsigned char *hash;
1701 char asc[2 * HASH_SIZE + 1];
1702 int ret;
1703 char afsi_buf[AFSI_SIZE];
1704 uint32_t flags = read_u32(buf + CAB_FLAGS_OFFSET);
1705 struct afs_info default_afsi = {.last_played = 0};
1706 struct para_buffer msg = {
1707 .max_size = shm_get_shmmax(),
1708 .max_size_handler = afs_max_size_handler,
1709 .private_data = &(struct afs_max_size_handler_data) {
1710 .fd = fd,
1711 .band = SBD_OUTPUT
1712 }
1713 };
1714 uint16_t afhi_offset, chunks_offset;
1715
1716 hash = (unsigned char *)buf + CAB_HASH_OFFSET;
1717 hash_to_asc(hash, asc);
1718 objs[AFTCOL_HASH].data = buf + CAB_HASH_OFFSET;
1719 objs[AFTCOL_HASH].size = HASH_SIZE;
1720
1721 path = buf + CAB_PATH_OFFSET;
1722 objs[AFTCOL_PATH].data = path;
1723 objs[AFTCOL_PATH].size = strlen(path) + 1;
1724
1725 PARA_INFO_LOG("request to add %s\n", path);
1726 hs = find_hash_sister(hash);
1727 ret = aft_get_row_of_path(path, &pb);
1728 if (ret < 0 && ret != -OSL_ERRNO_TO_PARA_ERROR(E_OSL_RB_KEY_NOT_FOUND))
1729 goto out;
1730 if (hs && pb && hs == pb && !(flags & ADD_FLAG_FORCE)) {
1731 if (flags & ADD_FLAG_VERBOSE)
1732 ret = para_printf(&msg, "ignoring duplicate\n");
1733 else
1734 ret = 1;
1735 goto out;
1736 }
1737 if (hs && hs != pb) {
1738 struct osl_object obj;
1739 if (pb) { /* hs trumps pb, remove pb */
1740 if (flags & ADD_FLAG_VERBOSE) {
1741 ret = para_printf(&msg, "removing %s\n", path);
1742 if (ret < 0)
1743 goto out;
1744 }
1745 afs_event(AUDIO_FILE_REMOVE, &msg, pb);
1746 ret = osl(osl_del_row(audio_file_table, pb));
1747 if (ret < 0)
1748 goto out;
1749 pb = NULL;
1750 }
1751 /* file rename, update hs' path */
1752 if (flags & ADD_FLAG_VERBOSE) {
1753 ret = osl(osl_get_object(audio_file_table, hs,
1754 AFTCOL_PATH, &obj));
1755 if (ret < 0)
1756 goto out;
1757 ret = para_printf(&msg, "renamed from %s\n", (char *)obj.data);
1758 if (ret < 0)
1759 goto out;
1760 }
1761 ret = osl(osl_update_object(audio_file_table, hs, AFTCOL_PATH,
1762 &objs[AFTCOL_PATH]));
1763 if (ret < 0)
1764 goto out;
1765 afs_event(AUDIO_FILE_RENAME, &msg, hs);
1766 if (!(flags & ADD_FLAG_FORCE))
1767 goto out;
1768 }
1769 /* no hs or force mode, child must have sent afhi */
1770 afhi_offset = read_u16(buf + CAB_AFHI_OFFSET_POS);
1771 chunks_offset = read_u16(buf + CAB_CHUNKS_OFFSET_POS);
1772
1773 objs[AFTCOL_AFHI].data = buf + afhi_offset;
1774 objs[AFTCOL_AFHI].size = chunks_offset - afhi_offset;
1775 ret = -E_NO_AFHI;
1776 if (!objs[AFTCOL_AFHI].size) /* "impossible" */
1777 goto out;
1778 objs[AFTCOL_CHUNKS].data = buf + chunks_offset;
1779 objs[AFTCOL_CHUNKS].size = query->size - chunks_offset;
1780 if (pb && !hs) { /* update pb's hash */
1781 char old_asc[2 * HASH_SIZE + 1];
1782 unsigned char *old_hash;
1783 ret = get_hash_of_row(pb, &old_hash);
1784 if (ret < 0)
1785 goto out;
1786 hash_to_asc(old_hash, old_asc);
1787 if (flags & ADD_FLAG_VERBOSE) {
1788 ret = para_printf(&msg, "file change: %s -> %s\n",
1789 old_asc, asc);
1790 if (ret < 0)
1791 goto out;
1792 }
1793 ret = osl_update_object(audio_file_table, pb, AFTCOL_HASH,
1794 &objs[AFTCOL_HASH]);
1795 if (ret < 0)
1796 goto out;
1797 }
1798 if (hs || pb) { /* (hs != NULL and pb != NULL) implies hs == pb */
1799 struct osl_row *row = pb? pb : hs;
1800 /* update afhi and chunk_table */
1801 if (flags & ADD_FLAG_VERBOSE) {
1802 ret = para_printf(&msg, "updating afhi and chunk table\n");
1803 if (ret < 0)
1804 goto out;
1805 }
1806 ret = osl(osl_update_object(audio_file_table, row, AFTCOL_AFHI,
1807 &objs[AFTCOL_AFHI]));
1808 if (ret < 0)
1809 goto out;
1810 ret = osl(osl_update_object(audio_file_table, row, AFTCOL_CHUNKS,
1811 &objs[AFTCOL_CHUNKS]));
1812 if (ret < 0)
1813 goto out;
1814 afs_event(AFHI_CHANGE, &msg, row);
1815 goto out;
1816 }
1817 /* new entry, use default afsi */
1818 if (flags & ADD_FLAG_VERBOSE) {
1819 ret = para_printf(&msg, "new file\n");
1820 if (ret < 0)
1821 goto out;
1822 }
1823 default_afsi.last_played = time(NULL) - 365 * 24 * 60 * 60;
1824 default_afsi.audio_format_id = read_u8(buf + CAB_AUDIO_FORMAT_OFFSET);
1825
1826 objs[AFTCOL_AFSI].data = &afsi_buf;
1827 objs[AFTCOL_AFSI].size = AFSI_SIZE;
1828 save_afsi(&default_afsi, &objs[AFTCOL_AFSI]);
1829 ret = osl(osl_add_and_get_row(audio_file_table, objs, &aft_row));
1830 afs_event(AUDIO_FILE_ADD, &msg, aft_row);
1831 out:
1832 if (ret < 0)
1833 para_printf(&msg, "%s\n", para_strerror(-ret));
1834 if (msg.offset)
1835 pass_buffer_as_shm(fd, SBD_OUTPUT, msg.buf, msg.offset);
1836 free(msg.buf);
1837 }
1838
1839 /** Used by com_add(). */
1840 struct private_add_data {
1841 /** The pointer passed to the original command handler. */
1842 struct command_context *cc;
1843 /** The given add flags. */
1844 uint32_t flags;
1845 };
1846
1847 static void path_brother_callback(int fd, const struct osl_object *query)
1848 {
1849 char *path = query->data;
1850 struct osl_row *path_brother;
1851 int ret = aft_get_row_of_path(path, &path_brother);
1852 if (ret < 0)
1853 return;
1854 pass_buffer_as_shm(fd, SBD_OUTPUT, (char *)&path_brother,
1855 sizeof(path_brother));
1856 }
1857
1858 static void hash_sister_callback(int fd, const struct osl_object *query)
1859 {
1860 unsigned char *hash = query->data;
1861 struct osl_row *hash_sister;
1862
1863 hash_sister = find_hash_sister(hash);
1864 if (!hash_sister)
1865 return;
1866 pass_buffer_as_shm(fd, SBD_OUTPUT, (char *)&hash_sister,
1867 sizeof(hash_sister));
1868 }
1869
1870 static int get_row_pointer_from_result(struct osl_object *result,
1871 __a_unused uint8_t band, void *private)
1872 {
1873 struct osl_row **row = private;
1874 *row = *(struct osl_row **)(result->data);
1875 return 1;
1876 }
1877
1878 static int add_one_audio_file(const char *path, void *private_data)
1879 {
1880 int ret, send_ret = 1, fd;
1881 uint8_t format_num = -1;
1882 struct private_add_data *pad = private_data;
1883 struct afh_info afhi, *afhi_ptr = NULL;
1884 struct osl_row *pb = NULL, *hs = NULL; /* path brother/hash sister */
1885 struct osl_object map, obj = {.data = NULL}, query;
1886 unsigned char hash[HASH_SIZE];
1887
1888 ret = guess_audio_format(path);
1889 if (ret < 0 && !(pad->flags & ADD_FLAG_ALL)) {
1890 ret = 0;
1891 goto out_free;
1892 }
1893 query.data = (char *)path;
1894 query.size = strlen(path) + 1;
1895 ret = send_callback_request(path_brother_callback, &query,
1896 get_row_pointer_from_result, &pb);
1897 if (ret < 0 && ret != -OSL_ERRNO_TO_PARA_ERROR(E_OSL_RB_KEY_NOT_FOUND))
1898 goto out_free;
1899 ret = 1;
1900 if (pb && (pad->flags & ADD_FLAG_LAZY)) { /* lazy is really cheap */
1901 if (pad->flags & ADD_FLAG_VERBOSE)
1902 send_ret = send_sb_va(&pad->cc->scc, SBD_OUTPUT,
1903 "lazy-ignore: %s\n", path);
1904 goto out_free;
1905 }
1906 /* We still want to add this file. Compute its hash. */
1907 ret = mmap_full_file(path, O_RDONLY, &map.data, &map.size, &fd);
1908 if (ret < 0)
1909 goto out_free;
1910 hash_function(map.data, map.size, hash);
1911
1912 /* Check whether the database contains a file with the same hash. */
1913 query.data = hash;
1914 query.size = HASH_SIZE;
1915 ret = send_callback_request(hash_sister_callback, &query,
1916 get_row_pointer_from_result, &hs);
1917 if (ret < 0)
1918 goto out_unmap;
1919 /* Return success if we already know this file. */
1920 ret = 1;
1921 if (pb && hs && hs == pb && !(pad->flags & ADD_FLAG_FORCE)) {
1922 if (pad->flags & ADD_FLAG_VERBOSE)
1923 send_ret = send_sb_va(&pad->cc->scc, SBD_OUTPUT,
1924 "%s exists, not forcing update\n", path);
1925 goto out_unmap;
1926 }
1927 /*
1928 * We won't recalculate the audio format info and the chunk table if
1929 * there is a hash sister and FORCE was not given.
1930 */
1931 if (!hs || (pad->flags & ADD_FLAG_FORCE)) {
1932 ret = compute_afhi(path, map.data, map.size, fd, &afhi);
1933 if (ret < 0)
1934 goto out_unmap;
1935 format_num = ret;
1936 afhi_ptr = &afhi;
1937 }
1938 munmap(map.data, map.size);
1939 close(fd);
1940 if (pad->flags & ADD_FLAG_VERBOSE) {
1941 send_ret = send_sb_va(&pad->cc->scc, SBD_OUTPUT,
1942 "adding %s\n", path);
1943 if (send_ret < 0)
1944 goto out_free;
1945 }
1946 save_add_callback_buffer(hash, path, afhi_ptr, pad->flags, format_num, &obj);
1947 /* Ask afs to consider this entry for adding. */
1948 ret = send_callback_request(com_add_callback, &obj,
1949 afs_cb_result_handler, pad->cc);
1950 goto out_free;
1951
1952 out_unmap:
1953 close(fd);
1954 munmap(map.data, map.size);
1955 out_free:
1956 if (ret < 0 && send_ret >= 0)
1957 send_ret = send_sb_va(&pad->cc->scc, SBD_ERROR_LOG,
1958 "failed to add %s (%s)\n", path, para_strerror(-ret));
1959 free(obj.data);
1960 clear_afhi(afhi_ptr);
1961 /* Stop adding files only on send errors. */
1962 return send_ret;
1963 }
1964
1965 int com_add(struct command_context *cc)
1966 {
1967 int i, ret;
1968 struct private_add_data pad = {.cc = cc, .flags = 0};
1969
1970 for (i = 1; i < cc->argc; i++) {
1971 const char *arg = cc->argv[i];
1972 if (arg[0] != '-')
1973 break;
1974 if (!strcmp(arg, "--")) {
1975 i++;
1976 break;
1977 }
1978 if (!strcmp(arg, "-a")) {
1979 pad.flags |= ADD_FLAG_ALL;
1980 continue;
1981 }
1982 if (!strcmp(arg, "-l")) {
1983 pad.flags |= ADD_FLAG_LAZY;
1984 continue;
1985 }
1986 if (!strcmp(arg, "-f")) {
1987 pad.flags |= ADD_FLAG_FORCE;
1988 continue;
1989 }
1990 if (!strcmp(arg, "-v")) {
1991 pad.flags |= ADD_FLAG_VERBOSE;
1992 continue;
1993 }
1994 }
1995 if (cc->argc <= i)
1996 return -E_AFT_SYNTAX;
1997 for (; i < cc->argc; i++) {
1998 char *path;
1999 ret = verify_path(cc->argv[i], &path);
2000 if (ret < 0) {
2001 ret = send_sb_va(&cc->scc, SBD_ERROR_LOG, "%s: %s\n",
2002 cc->argv[i], para_strerror(-ret));
2003 if (ret < 0)
2004 return ret;
2005 continue;
2006 }
2007 if (ret == 1) /* directory */
2008 ret = for_each_file_in_dir(path, add_one_audio_file,
2009 &pad);
2010 else /* regular file */
2011 ret = add_one_audio_file(path, &pad);
2012 if (ret < 0) {
2013 send_sb_va(&cc->scc, SBD_OUTPUT, "%s: %s\n", path,
2014 para_strerror(-ret));
2015 free(path);
2016 return ret;
2017 }
2018 free(path);
2019 }
2020 return 1;
2021 }
2022
2023 /**
2024 * Flags used by the touch command.
2025 *
2026 * \sa com_touch().
2027 */
2028 enum touch_flags {
2029 /** Whether the \p FNM_PATHNAME flag should be passed to fnmatch(). */
2030 TOUCH_FLAG_FNM_PATHNAME = 1,
2031 /** Activates verbose mode. */
2032 TOUCH_FLAG_VERBOSE = 2
2033 };
2034
2035 /** Options used by com_touch(). */
2036 struct com_touch_options {
2037 /** New num_played value. */
2038 int32_t num_played;
2039 /** New last played count. */
2040 int64_t last_played;
2041 /** New lyrics id. */
2042 int32_t lyrics_id;
2043 /** New image id. */
2044 int32_t image_id;
2045 /** New amplification value. */
2046 int32_t amp;
2047 /** Command line flags (see \ref touch_flags). */
2048 unsigned flags;
2049 };
2050
2051 /** Data passed to the action handler of com_touch(). */
2052 struct touch_action_data {
2053 /** Command line options (see \ref com_touch_options). */
2054 struct com_touch_options *cto;
2055 /** Message buffer. */
2056 struct para_buffer pb;
2057 };
2058
2059 static int touch_audio_file(__a_unused struct osl_table *table,
2060 struct osl_row *row, const char *name, void *data)
2061 {
2062 struct touch_action_data *tad = data;
2063 struct osl_object obj;
2064 struct afs_info old_afsi, new_afsi;
2065 int ret, no_options = tad->cto->num_played < 0 && tad->cto->last_played < 0 &&
2066 tad->cto->lyrics_id < 0 && tad->cto->image_id < 0 && tad->cto->amp < 0;
2067 struct afsi_change_event_data aced;
2068
2069 ret = get_afsi_object_of_row(row, &obj);
2070 if (ret < 0)
2071 return para_printf(&tad->pb, "%s: %s\n", name, para_strerror(-ret));
2072 ret = load_afsi(&old_afsi, &obj);
2073 if (ret < 0)
2074 return para_printf(&tad->pb, "%s: %s\n", name, para_strerror(-ret));
2075 new_afsi = old_afsi;
2076 if (no_options) {
2077 new_afsi.num_played++;
2078 new_afsi.last_played = time(NULL);
2079 if (tad->cto->flags & TOUCH_FLAG_VERBOSE) {
2080 ret = para_printf(&tad->pb, "%s: num_played = %u, "
2081 "last_played = now()\n", name,
2082 new_afsi.num_played);
2083 if (ret < 0)
2084 return ret;
2085 }
2086 } else {
2087 if (tad->cto->flags & TOUCH_FLAG_VERBOSE) {
2088 ret = para_printf(&tad->pb, "touching %s\n", name);
2089 if (ret < 0)
2090 return ret;
2091 }
2092 if (tad->cto->lyrics_id >= 0)
2093 new_afsi.lyrics_id = tad->cto->lyrics_id;
2094 if (tad->cto->image_id >= 0)
2095 new_afsi.image_id = tad->cto->image_id;
2096 if (tad->cto->num_played >= 0)
2097 new_afsi.num_played = tad->cto->num_played;
2098 if (tad->cto->last_played >= 0)
2099 new_afsi.last_played = tad->cto->last_played;
2100 if (tad->cto->amp >= 0)
2101 new_afsi.amp = tad->cto->amp;
2102 }
2103 save_afsi(&new_afsi, &obj); /* in-place update */
2104 aced.aft_row = row;
2105 aced.old_afsi = &old_afsi;
2106 afs_event(AFSI_CHANGE, &tad->pb, &aced);
2107 return 1;
2108 }
2109
2110 static void com_touch_callback(int fd, const struct osl_object *query)
2111 {
2112 struct touch_action_data tad = {.cto = query->data,
2113 .pb = {
2114 .max_size = shm_get_shmmax(),
2115 .private_data = &(struct afs_max_size_handler_data) {
2116 .fd = fd,
2117 .band = SBD_OUTPUT
2118 },
2119 .max_size_handler = afs_max_size_handler
2120 }
2121 };
2122 int ret, ret2 = 0;
2123 struct pattern_match_data pmd = {
2124 .table = audio_file_table,
2125 .loop_col_num = AFTCOL_HASH,
2126 .match_col_num = AFTCOL_PATH,
2127 .patterns = {.data = (char *)query->data + sizeof(*tad.cto),
2128 .size = query->size - sizeof(*tad.cto)},
2129 .data = &tad,
2130 .action = touch_audio_file
2131 };
2132 if (tad.cto->flags & TOUCH_FLAG_FNM_PATHNAME)
2133 pmd.fnmatch_flags |= FNM_PATHNAME;
2134 ret = for_each_matching_row(&pmd);
2135 if (ret < 0)
2136 ret2 = para_printf(&tad.pb, "%s\n", para_strerror(-ret));
2137 else if (pmd.num_matches == 0)
2138 ret2 = para_printf(&tad.pb, "no matches\n");
2139 if (ret2 >= 0 && tad.pb.offset)
2140 pass_buffer_as_shm(fd, SBD_OUTPUT, tad.pb.buf, tad.pb.offset);
2141 free(tad.pb.buf);
2142 }
2143
2144 int com_touch(struct command_context *cc)
2145 {
2146 struct com_touch_options cto = {
2147 .num_played = -1,
2148 .last_played = -1,
2149 .lyrics_id = -1,
2150 .image_id = -1,
2151 .amp = -1,
2152 };
2153 struct osl_object query = {.data = &cto, .size = sizeof(cto)};
2154 int i, ret;
2155
2156
2157 for (i = 1; i < cc->argc; i++) {
2158 const char *arg = cc->argv[i];
2159 if (arg[0] != '-')
2160 break;
2161 if (!strcmp(arg, "--")) {
2162 i++;
2163 break;
2164 }
2165 if (!strncmp(arg, "-n=", 3)) {
2166 ret = para_atoi32(arg + 3, &cto.num_played);
2167 if (ret < 0)
2168 return ret;
2169 continue;
2170 }
2171 if (!strncmp(arg, "-l=", 3)) {
2172 ret = para_atoi64(arg + 3, &cto.last_played);
2173 if (ret < 0)
2174 return ret;
2175 continue;
2176 }
2177 if (!strncmp(arg, "-y=", 3)) {
2178 ret = para_atoi32(arg + 3, &cto.lyrics_id);
2179 if (ret < 0)
2180 return ret;
2181 continue;
2182 }
2183 if (!strncmp(arg, "-i=", 3)) {
2184 ret = para_atoi32(arg + 3, &cto.image_id);
2185 if (ret < 0)
2186 return ret;
2187 continue;
2188 }
2189 if (!strncmp(arg, "-a=", 3)) {
2190 int32_t val;
2191 ret = para_atoi32(arg + 3, &val);
2192 if (ret < 0)
2193 return ret;
2194 if (val < 0 || val > 255)
2195 return -ERRNO_TO_PARA_ERROR(EINVAL);
2196 cto.amp = val;
2197 continue;
2198 }
2199 if (!strcmp(arg, "-p")) {
2200 cto.flags |= TOUCH_FLAG_FNM_PATHNAME;
2201 continue;
2202 }
2203 if (!strcmp(arg, "-v")) {
2204 cto.flags |= TOUCH_FLAG_VERBOSE;
2205 continue;
2206 }
2207 break; /* non-option starting with dash */
2208 }
2209 if (i >= cc->argc)
2210 return -E_AFT_SYNTAX;
2211 ret = send_option_arg_callback_request(&query, cc->argc - i,
2212 cc->argv + i, com_touch_callback, afs_cb_result_handler, cc);
2213 if (ret < 0)
2214 send_strerror(cc, -ret);
2215 return ret;
2216 }
2217
2218 /** Flags for com_rm(). */
2219 enum rm_flags {
2220 /** -v */
2221 RM_FLAG_VERBOSE = 1,
2222 /** -f */
2223 RM_FLAG_FORCE = 2,
2224 /** -p */
2225 RM_FLAG_FNM_PATHNAME = 4
2226 };
2227
2228 /** Data passed to the action handler of com_rm(). */
2229 struct com_rm_action_data {
2230 /** Command line flags ((see \ref rm_flags). */
2231 uint32_t flags;
2232 /** Message buffer. */
2233 struct para_buffer pb;
2234 };
2235
2236 static int remove_audio_file(__a_unused struct osl_table *table,
2237 struct osl_row *row, const char *name, void *data)
2238 {
2239 struct com_rm_action_data *crd = data;
2240 int ret;
2241
2242 if (crd->flags & RM_FLAG_VERBOSE) {
2243 ret = para_printf(&crd->pb, "removing %s\n", name);
2244 if (ret < 0)
2245 return ret;
2246 }
2247 afs_event(AUDIO_FILE_REMOVE, &crd->pb, row);
2248 ret = osl(osl_del_row(audio_file_table, row));
2249 if (ret < 0)
2250 para_printf(&crd->pb, "%s: %s\n", name, para_strerror(-ret));
2251 return ret;
2252 }
2253
2254 static void com_rm_callback(int fd, const struct osl_object *query)
2255 {
2256 struct com_rm_action_data crd = {.flags = *(uint32_t *)query->data,
2257 .pb = {
2258 .max_size = shm_get_shmmax(),
2259 .private_data = &(struct afs_max_size_handler_data) {
2260 .fd = fd,
2261 .band = SBD_OUTPUT
2262 },
2263 .max_size_handler = afs_max_size_handler
2264 }
2265 };
2266 int ret;
2267 struct pattern_match_data pmd = {
2268 .table = audio_file_table,
2269 .loop_col_num = AFTCOL_HASH,
2270 .match_col_num = AFTCOL_PATH,
2271 .patterns = {.data = (char *)query->data + sizeof(uint32_t),
2272 .size = query->size - sizeof(uint32_t)},
2273 .data = &crd,
2274 .action = remove_audio_file
2275 };
2276 if (crd.flags & RM_FLAG_FNM_PATHNAME)
2277 pmd.fnmatch_flags |= FNM_PATHNAME;
2278 ret = for_each_matching_row(&pmd);
2279 if (ret < 0) {
2280 para_printf(&crd.pb, "%s\n", para_strerror(-ret));
2281 return;
2282 }
2283 if ((pmd.num_matches == 0) && !(crd.flags & RM_FLAG_FORCE))
2284 ret = para_printf(&crd.pb, "no matches -- nothing removed\n");
2285 else if (crd.flags & RM_FLAG_VERBOSE) {
2286 ret = para_printf(&crd.pb, "removed %u files\n",
2287 pmd.num_matches);
2288 }
2289 if (ret >= 0 && crd.pb.offset)
2290 pass_buffer_as_shm(fd, SBD_OUTPUT, crd.pb.buf, crd.pb.offset);
2291 free(crd.pb.buf);
2292 }
2293
2294 /* TODO options: -r (recursive) */
2295 int com_rm(struct command_context *cc)
2296 {
2297 uint32_t flags = 0;
2298 struct osl_object query = {.data = &flags, .size = sizeof(flags)};
2299 int i, ret;
2300
2301 for (i = 1; i < cc->argc; i++) {
2302 const char *arg = cc->argv[i];
2303 if (arg[0] != '-')
2304 break;
2305 if (!strcmp(arg, "--")) {
2306 i++;
2307 break;
2308 }
2309 if (!strcmp(arg, "-f")) {
2310 flags |= RM_FLAG_FORCE;
2311 continue;
2312 }
2313 if (!strcmp(arg, "-p")) {
2314 flags |= RM_FLAG_FNM_PATHNAME;
2315 continue;
2316 }
2317 if (!strcmp(arg, "-v")) {
2318 flags |= RM_FLAG_VERBOSE;
2319 continue;
2320 }
2321 break;
2322 }
2323 if (i >= cc->argc)
2324 return -E_AFT_SYNTAX;
2325 ret = send_option_arg_callback_request(&query, cc->argc - i,
2326 cc->argv + i, com_rm_callback, afs_cb_result_handler, cc);
2327 if (ret < 0)
2328 send_strerror(cc, -ret);
2329 return ret;
2330 }
2331
2332 /**
2333 * Flags used by the cpsi command.
2334 *
2335 * \sa com_cpsi().
2336 */
2337 enum cpsi_flags {
2338 /** Whether the lyrics id should be copied. */
2339 CPSI_FLAG_COPY_LYRICS_ID = 1,
2340 /** Whether the image id should be copied. */
2341 CPSI_FLAG_COPY_IMAGE_ID = 2,
2342 /** Whether the lastplayed time should be copied. */
2343 CPSI_FLAG_COPY_LASTPLAYED = 4,
2344 /** Whether the numplayed count should be copied. */
2345 CPSI_FLAG_COPY_NUMPLAYED = 8,
2346 /** Whether the attributes should be copied. */
2347 CPSI_FLAG_COPY_ATTRIBUTES = 16,
2348 /** Activates verbose mode. */
2349 CPSI_FLAG_VERBOSE = 32,
2350 };
2351
2352 /** Data passed to the action handler of com_cpsi(). */
2353 struct cpsi_action_data {
2354 /** command line flags (see \ref cpsi_flags). */
2355 unsigned flags;
2356 /** Message buffer. */
2357 struct para_buffer pb;
2358 /** Values are copied from here. */
2359 struct afs_info source_afsi;
2360 };
2361
2362 static int copy_selector_info(__a_unused struct osl_table *table,
2363 struct osl_row *row, const char *name, void *data)
2364 {
2365 struct cpsi_action_data *cad = data;
2366 struct osl_object target_afsi_obj;
2367 int ret;
2368 struct afs_info old_afsi, target_afsi;
2369 struct afsi_change_event_data aced;
2370
2371 ret = get_afsi_object_of_row(row, &target_afsi_obj);
2372 if (ret < 0)
2373 return ret;
2374 load_afsi(&target_afsi, &target_afsi_obj);
2375 old_afsi = target_afsi;
2376 if (cad->flags & CPSI_FLAG_COPY_LYRICS_ID)
2377 target_afsi.lyrics_id = cad->source_afsi.lyrics_id;
2378 if (cad->flags & CPSI_FLAG_COPY_IMAGE_ID)
2379 target_afsi.image_id = cad->source_afsi.image_id;
2380 if (cad->flags & CPSI_FLAG_COPY_LASTPLAYED)
2381 target_afsi.last_played = cad->source_afsi.last_played;
2382 if (cad->flags & CPSI_FLAG_COPY_NUMPLAYED)
2383 target_afsi.num_played = cad->source_afsi.num_played;
2384 if (cad->flags & CPSI_FLAG_COPY_ATTRIBUTES)
2385 target_afsi.attributes = cad->source_afsi.attributes;
2386 save_afsi(&target_afsi, &target_afsi_obj); /* in-place update */
2387 if (cad->flags & CPSI_FLAG_VERBOSE) {
2388 ret = para_printf(&cad->pb, "copied afsi to %s\n", name);
2389 if (ret < 0)
2390 return ret;
2391 }
2392 aced.aft_row = row;
2393 aced.old_afsi = &old_afsi;
2394 afs_event(AFSI_CHANGE, &cad->pb, &aced);
2395 return 1;
2396 }
2397
2398 static void com_cpsi_callback(int fd, const struct osl_object *query)
2399 {
2400 struct cpsi_action_data cad = {
2401 .flags = *(unsigned *)query->data,
2402 .pb = {
2403 .max_size = shm_get_shmmax(),
2404 .private_data = &(struct afs_max_size_handler_data) {
2405 .fd = fd,
2406 .band = SBD_OUTPUT
2407 },
2408 .max_size_handler = afs_max_size_handler
2409 }
2410 };
2411 int ret;
2412 char *source_path = (char *)query->data + sizeof(cad.flags);
2413 struct pattern_match_data pmd = {
2414 .table = audio_file_table,
2415 .loop_col_num = AFTCOL_HASH,
2416 .match_col_num = AFTCOL_PATH,
2417 .patterns = {.data = source_path + strlen(source_path) + 1,
2418 .size = query->size - sizeof(cad.flags)
2419 - strlen(source_path) - 1},
2420 .data = &cad,
2421 .action = copy_selector_info
2422 };
2423
2424 ret = get_afsi_of_path(source_path, &cad.source_afsi);
2425 if (ret < 0)
2426 goto out;
2427 ret = for_each_matching_row(&pmd);
2428 out:
2429 if (ret < 0)
2430 para_printf(&cad.pb, "%s\n", para_strerror(-ret));
2431 else if (pmd.num_matches > 0) {
2432 if (cad.flags & CPSI_FLAG_VERBOSE)
2433 para_printf(&cad.pb, "copied requested afsi from %s "
2434 "to %u files\n", source_path, pmd.num_matches);
2435 } else
2436 para_printf(&cad.pb, "no matches - nothing copied\n");
2437 if (cad.pb.offset)
2438 pass_buffer_as_shm(fd, SBD_OUTPUT, cad.pb.buf, cad.pb.offset);
2439 free(cad.pb.buf);
2440 }
2441
2442 int com_cpsi(struct command_context *cc)
2443 {
2444 unsigned flags = 0;
2445 int i, ret;
2446 struct osl_object options = {.data = &flags, .size = sizeof(flags)};
2447
2448 for (i = 1; i < cc->argc; i++) {
2449 const char *arg = cc->argv[i];
2450 if (arg[0] != '-')
2451 break;
2452 if (!strcmp(arg, "--")) {
2453 i++;
2454 break;
2455 }
2456 if (!strcmp(arg, "-y")) {
2457 flags |= CPSI_FLAG_COPY_LYRICS_ID;
2458 continue;
2459 }
2460 if (!strcmp(arg, "-i")) {
2461 flags |= CPSI_FLAG_COPY_IMAGE_ID;
2462 continue;
2463 }
2464 if (!strcmp(arg, "-l")) {
2465 flags |= CPSI_FLAG_COPY_LASTPLAYED;
2466 continue;
2467 }
2468 if (!strcmp(arg, "-n")) {
2469 flags |= CPSI_FLAG_COPY_NUMPLAYED;
2470 continue;
2471 }
2472 if (!strcmp(arg, "-a")) {
2473 flags |= CPSI_FLAG_COPY_ATTRIBUTES;
2474 continue;
2475 }
2476 if (!strcmp(arg, "-v")) {
2477 flags |= CPSI_FLAG_VERBOSE;
2478 continue;
2479 }
2480 break;
2481 }
2482 if (i + 1 >= cc->argc) /* need at least source file and pattern */
2483 return -E_AFT_SYNTAX;
2484 if (!(flags & ~CPSI_FLAG_VERBOSE)) /* no copy flags given */
2485 flags = ~(unsigned)CPSI_FLAG_VERBOSE | flags;
2486 ret = send_option_arg_callback_request(&options, cc->argc - i,
2487 cc->argv + i, com_cpsi_callback, afs_cb_result_handler, cc);
2488 if (ret < 0)
2489 send_strerror(cc, -ret);
2490 return ret;
2491 }
2492
2493 struct change_atts_data {
2494 uint64_t add_mask, del_mask;
2495 struct para_buffer pb;
2496 };
2497
2498 static int change_atts(__a_unused struct osl_table *table,
2499 struct osl_row *row, __a_unused const char *name, void *data)
2500 {
2501 int ret;
2502 struct osl_object obj;
2503 struct afs_info old_afsi, new_afsi;
2504 struct afsi_change_event_data aced = {
2505 .aft_row = row,
2506 .old_afsi = &old_afsi
2507 };
2508 struct change_atts_data *cad = data;
2509
2510 ret = get_afsi_object_of_row(row, &obj);
2511 if (ret < 0)
2512 return ret;
2513 ret = load_afsi(&old_afsi, &obj);
2514 if (ret < 0)
2515 return ret;
2516 new_afsi = old_afsi;
2517 new_afsi.attributes |= cad->add_mask;
2518 new_afsi.attributes &= ~cad->del_mask;
2519 save_afsi(&new_afsi, &obj); /* in-place update */
2520 afs_event(AFSI_CHANGE, &cad->pb, &aced);
2521 return 1;
2522 }
2523
2524 static void com_setatt_callback(int fd, const struct osl_object *query)
2525 {
2526 char *p;
2527 int ret;
2528 size_t len;
2529 struct change_atts_data cad = {
2530 .pb = {
2531 .max_size = shm_get_shmmax(),
2532 .max_size_handler = afs_max_size_handler,
2533 .private_data = &(struct afs_max_size_handler_data) {
2534 .fd = fd,
2535 .band = SBD_OUTPUT
2536 }
2537 }
2538 };
2539 struct pattern_match_data pmd = {
2540 .table = audio_file_table,
2541 .loop_col_num = AFTCOL_HASH,
2542 .match_col_num = AFTCOL_PATH,
2543 .pm_flags = PM_SKIP_EMPTY_NAME,
2544 .data = &cad,
2545 .action = change_atts
2546 };
2547
2548 for (p = query->data; p < (char *)query->data + query->size; p += len + 1) {
2549 char c;
2550 unsigned char bitnum;
2551
2552 len = strlen(p);
2553 ret = -E_ATTR_SYNTAX;
2554 if (len == 0)
2555 goto out;
2556 c = p[len - 1];
2557 if (c != '+' && c != '-')
2558 break;
2559 p[len - 1] = '\0';
2560 ret = get_attribute_bitnum_by_name(p, &bitnum);
2561 if (ret < 0) {
2562 para_printf(&cad.pb, "attribute not found: %s\n", p);
2563 goto out;
2564 }
2565 if (c == '+')
2566 cad.add_mask |= (1UL << bitnum);
2567 else
2568 cad.del_mask |= (1UL << bitnum);
2569 }
2570 ret = -E_ATTR_SYNTAX;
2571 if (!cad.add_mask && !cad.del_mask)
2572 goto out;
2573 pmd.patterns.data = p;
2574 if (p >= (char *)query->data + query->size)
2575 goto out;
2576 pmd.patterns.size = (char *)query->data + query->size - p;
2577 ret = for_each_matching_row(&pmd);
2578 if (ret < 0)
2579 goto out;
2580 if (pmd.num_matches == 0)
2581 para_printf(&cad.pb, "no matches\n");
2582 out:
2583 if (ret < 0)
2584 para_printf(&cad.pb, "%s\n", para_strerror(-ret));
2585 if (cad.pb.offset)
2586 pass_buffer_as_shm(fd, SBD_OUTPUT, cad.pb.buf, cad.pb.offset);
2587 free(cad.pb.buf);
2588 }
2589
2590 int com_setatt(struct command_context *cc)
2591 {
2592 if (cc->argc < 3)
2593 return -E_ATTR_SYNTAX;
2594 return send_standard_callback_request(cc->argc - 1, cc->argv + 1,
2595 com_setatt_callback, afs_cb_result_handler, cc);
2596 }
2597
2598 static void afs_stat_callback(int fd, const struct osl_object *query)
2599 {
2600 int *parser_friendly = query->data;
2601 char *buf = *parser_friendly?
2602 parser_friendly_status_items : status_items;
2603
2604 if (!buf)
2605 return;
2606 pass_buffer_as_shm(fd, SBD_OUTPUT, buf, strlen(buf));
2607 }
2608
2609 /**
2610 * Get the current afs status items from the afs process and send it.
2611 *
2612 * \param cc The command context, used e.g. for data encryption.
2613 * \param parser_friendly Whether parser-friendly output format should be used.
2614 *
2615 * As the contents of the afs status items change in time and the command
2616 * handler only has a COW version created at fork time, it can not send
2617 * up-to-date afs status items directly. Therefore the usual callback mechanism
2618 * is used to pass the status items from the afs process to the command handler
2619 * via a shared memory area and a pipe.
2620 *
2621 * \return The return value of the underlying call to \ref send_callback_request().
2622 */
2623 int send_afs_status(struct command_context *cc, int parser_friendly)
2624 {
2625 struct osl_object query = {.data = &parser_friendly,
2626 .size = sizeof(parser_friendly)};
2627
2628 return send_callback_request(afs_stat_callback, &query,
2629 afs_cb_result_handler, cc);
2630 }
2631
2632 /* TODO: optionally fix problems by removing offending rows */
2633 static int check_audio_file(struct osl_row *row, void *data)
2634 {
2635 char *path;
2636 struct para_buffer *pb = data;
2637 struct stat statbuf;
2638 int ret = get_audio_file_path_of_row(row, &path);
2639 struct afs_info afsi;
2640 char *blob_name;
2641
2642 if (ret < 0)
2643 return para_printf(pb, "%s\n", para_strerror(-ret));
2644 if (stat(path, &statbuf) < 0) {
2645 ret = para_printf(pb, "%s: stat error (%s)\n", path, strerror(errno));
2646 if (ret < 0)
2647 return ret;
2648 } else {
2649 if (!S_ISREG(statbuf.st_mode)) {
2650 ret = para_printf(pb, "%s: not a regular file\n", path);
2651 if (ret < 0)
2652 return ret;
2653 }
2654 }
2655 ret = get_afsi_of_row(row, &afsi);
2656 if (ret < 0)
2657 return para_printf(pb, "%s: %s\n", path, para_strerror(-ret));
2658 ret = lyr_get_name_by_id(afsi.lyrics_id, &blob_name);
2659 if (ret < 0) {
2660 ret = para_printf(pb, "%s lyrics id %u: %s\n", path, afsi.lyrics_id,
2661 para_strerror(-ret));
2662 if (ret < 0)
2663 return ret;
2664 }
2665 ret = img_get_name_by_id(afsi.image_id, &blob_name);
2666 if (ret < 0)
2667 ret = para_printf(pb, "%s image id %u: %s\n", path, afsi.image_id,
2668 para_strerror(-ret));
2669 return ret;
2670 }
2671
2672 /**
2673 * Check the audio file table for inconsistencies.
2674 *
2675 * \param fd The afs socket.
2676 * \param query Unused.
2677 *
2678 * This function always succeeds.
2679 *
2680 * \sa com_check().
2681 */
2682 void aft_check_callback(int fd, __a_unused const struct osl_object *query)
2683 {
2684 struct para_buffer pb = {
2685 .max_size = shm_get_shmmax(),
2686 .private_data = &(struct afs_max_size_handler_data) {
2687 .fd = fd,
2688 .band = SBD_OUTPUT
2689 },
2690 .max_size_handler = afs_max_size_handler
2691 };
2692 int ret = para_printf(&pb, "checking audio file table...\n");
2693
2694 if (ret < 0)
2695 return;
2696 audio_file_loop(&pb, check_audio_file);
2697 if (pb.offset)
2698 pass_buffer_as_shm(fd, SBD_OUTPUT, pb.buf, pb.offset);
2699 free(pb.buf);
2700 }
2701
2702 /**
2703 * Close the audio file table.
2704 *
2705 * \param flags Usual flags that are passed to osl_close_table().
2706 *
2707 * \sa osl_close_table().
2708 */
2709 static void aft_close(void)
2710 {
2711 osl_close_table(audio_file_table, OSL_MARK_CLEAN);
2712 audio_file_table = NULL;
2713 }
2714
2715 /**
2716 * Open the audio file table.
2717 *
2718 * \param dir The database directory.
2719 *
2720 * \return Standard.
2721 *
2722 * \sa osl_open_table().
2723 */
2724 static int aft_open(const char *dir)
2725 {
2726 int ret;
2727
2728 audio_file_table_desc.dir = dir;
2729 ret = osl(osl_open_table(&audio_file_table_desc, &audio_file_table));
2730 if (ret >= 0) {
2731 unsigned num;
2732 osl_get_num_rows(audio_file_table, &num);
2733 PARA_INFO_LOG("audio file table contains %d files\n", num);
2734 return ret;
2735 }
2736 PARA_NOTICE_LOG("failed to open audio file table\n");
2737 audio_file_table = NULL;
2738 if (ret == -OSL_ERRNO_TO_PARA_ERROR(E_OSL_NOENT))
2739 return 1;
2740 return ret;
2741 }
2742
2743 static int aft_create(const char *dir)
2744 {
2745 audio_file_table_desc.dir = dir;
2746 return osl(osl_create_table(&audio_file_table_desc));
2747 }
2748
2749 static int clear_attribute(struct osl_row *row, void *data)
2750 {
2751 struct rmatt_event_data *red = data;
2752 struct afs_info afsi;
2753 struct osl_object obj;
2754 int ret = get_afsi_object_of_row(row, &obj);
2755 uint64_t mask = ~(1ULL << red->bitnum);
2756
2757 if (ret < 0)
2758 return ret;
2759 ret = load_afsi(&afsi, &obj);
2760 if (ret < 0)
2761 return ret;
2762 afsi.attributes &= mask;
2763 save_afsi(&afsi, &obj);
2764 return 1;
2765 }
2766
2767 static int aft_event_handler(enum afs_events event, struct para_buffer *pb,
2768 void *data)
2769 {
2770 int ret;
2771
2772 switch (event) {
2773 case ATTRIBUTE_REMOVE: {
2774 const struct rmatt_event_data *red = data;
2775 ret = para_printf(pb, "clearing attribute %s (bit %u) from all "
2776 "entries in the audio file table\n", red->name,
2777 red->bitnum);
2778 if (ret < 0)
2779 return ret;
2780 return audio_file_loop(data, clear_attribute);
2781 } case AFSI_CHANGE: {
2782 struct afsi_change_event_data *aced = data;
2783 uint64_t old_last_played = status_item_ls_data.afsi.last_played;
2784 if (aced->aft_row != current_aft_row)
2785 return 0;
2786 ret = get_afsi_of_row(aced->aft_row, &status_item_ls_data.afsi);
2787 if (ret < 0)
2788 return ret;
2789 status_item_ls_data.afsi.last_played = old_last_played;
2790 make_status_items();
2791 return 1;
2792 } case AFHI_CHANGE: {
2793 if (data != current_aft_row)
2794 return 0;
2795 ret = get_afhi_of_row(data, &status_item_ls_data.afhi);
2796 if (ret < 0)
2797 return ret;
2798 make_status_items();
2799 return 1;
2800 } default:
2801 return 0;
2802 }
2803 }
2804
2805 /**
2806 * Initialize the audio file table.
2807 *
2808 * \param t Pointer to the structure to be initialized.
2809 */
2810 void aft_init(struct afs_table *t)
2811 {
2812 t->open = aft_open;
2813 t->close = aft_close;
2814 t->create = aft_create;
2815 t->event_handler = aft_event_handler;
2816 }