2 * Copyright (C) 1999-2007 Andre Noll <maan@systemlinux.org>
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; either version 2 of the License, or
7 * (at your option) any later version.
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write to the Free Software
16 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
19 /** \file mysql_selector.c para_server's mysql-based audio file selector */
21 /** \cond some internal constants */
22 #define MEDIUM_BLOB_SIZE 16777220 /* (2**24 + 4) */
23 #define BLOB_SIZE 65539 /* (2**16 + 3) */
25 #include "server.cmdline.h"
29 #include <mysql/mysql.h>
30 #include <mysql/mysql_version.h>
34 #include "user_list.h"
35 #include "mysql_selector_command_list.h"
37 /** pointer to the shared memory area */
38 extern struct misc_meta_data *mmd;
40 static void *mysql_ptr = NULL;
42 static struct para_macro macro_list[] = {
44 .replacement = "(data.%s != '1')"
47 .replacement = "(data.%s = '1')"
50 .replacement = "%sdata.Pic_Id"
53 .replacement = "(data.name like '%s')"
56 .replacement = "%sFLOOR((UNIX_TIMESTAMP(now())"
57 "-UNIX_TIMESTAMP(data.Lastplayed))/60)"
60 .replacement = "%sdata.Numplayed"
66 static int real_query(const char *query)
70 PARA_DEBUG_LOG("%s\n", query);
71 if (mysql_real_query(mysql_ptr, query, strlen(query))) {
72 PARA_ERROR_LOG("real_query error (%s)\n",
73 mysql_error(mysql_ptr));
80 * Use open connection given by mysql_ptr to query server. Returns a
81 * result pointer on succes and NULL on errors
83 static struct MYSQL_RES *get_result(const char *query)
87 if (real_query(query) < 0)
89 result = mysql_store_result(mysql_ptr);
91 PARA_ERROR_LOG("%s", "store_result error\n");
95 * write input from fd to dynamically allocated char array,
96 * but maximal max_size byte. Return size.
98 static int fd2buf(int fd, char **buf_ptr, size_t max_size)
100 const size_t chunk_size = 1024;
102 char *buf = para_malloc(size * sizeof(char)), *p = buf;
105 while ((ret = recv_bin_buffer(fd, p, chunk_size)) > 0) {
107 if ((p - buf) + chunk_size >= size) {
111 if (size > max_size) {
115 tmp = para_realloc(buf, size);
130 static char *escape_blob(const char* old, int size)
134 if (!mysql_ptr || size < 0)
136 new = para_malloc(2 * size * sizeof(char) + 1);
137 mysql_real_escape_string(mysql_ptr, new, old, size);
141 static char *escape_str(const char* old)
143 return escape_blob(old, strlen(old));
146 static char *escaped_basename(const char *name)
148 char *esc, *bn = para_basename(name);
152 esc = escape_str(bn);
160 int com_na(__a_unused int fd, int argc, char *argv[])
166 return -E_MYSQL_SYNTAX;
167 tmp = escape_str(argv[1]);
170 q = make_message("alter table data add %s char(1) "
171 "not null default 0", tmp);
181 int com_da(__a_unused int fd, int argc, char *argv[])
187 return -E_MYSQL_SYNTAX;
188 tmp = escape_str(argv[1]);
191 q = make_message("alter table data drop %s", tmp);
199 static int com_stradd_picadd(int fd, int argc, char *argv[])
201 char *blob = NULL, *esc_blob = NULL, *q = NULL, *tmp = NULL;
202 const char *fmt, *del_fmt;
203 int ret, stradd = strcmp(argv[0], "picadd");
207 return -E_MYSQL_SYNTAX;
208 if (strlen(argv[1]) >= MAXLINE - 1)
209 return -E_NAMETOOLONG;
214 fmt = "insert into streams (name, def) values ('%s','%s')";
215 del_fmt="delete from streams where name='%s'";
217 size = MEDIUM_BLOB_SIZE;
218 fmt = "insert into pics (name, pic) values ('%s','%s')";
219 del_fmt="delete from pics where pic='%s'";
221 tmp = escape_str(argv[1]);
224 q = make_message(del_fmt, tmp);
230 if ((ret = send_buffer(fd, AWAITING_DATA_MSG) < 0))
232 if ((ret = fd2buf(fd, &blob, size)) < 0)
238 esc_blob = escape_blob(blob, size);
241 tmp = escape_str(argv[1]);
244 q = make_message(fmt, tmp, esc_blob);
255 int com_stradd(int fd, int argc, char *argv[])
257 return com_stradd_picadd(fd, argc, argv);
261 int com_picadd(int fd, int argc, char *argv[])
263 return com_stradd_picadd(fd, argc, argv);
267 * print results to fd
269 static int print_results(int fd, void *result,
270 unsigned int top, unsigned int left,
271 unsigned int bottom, unsigned int right)
277 for (i = top; i <= bottom; i++) {
278 row = mysql_fetch_row(result);
281 for (j = left; j <= right; j++) {
282 ret = send_va_buffer(fd, j == left? "%s" : "\t%s",
283 row[j]? row[j] : "NULL");
287 ret = send_buffer(fd, "\n");
297 int com_verb(int fd, int argc, char *argv[])
301 unsigned int num_rows, num_fields;
305 return -E_MYSQL_SYNTAX;
306 tmp = escape_str(argv[1]);
309 result = get_result(tmp);
312 /* return success, because it's ok to have no results */
314 num_fields = mysql_field_count(mysql_ptr);
315 num_rows = mysql_num_rows(result);
317 if (num_fields && num_rows)
318 ret = print_results(fd, result, 0, 0, num_rows - 1,
320 mysql_free_result(result);
324 /* returns NULL on errors or if there are no atts defined yet */
325 static void *get_all_attributes(void)
327 void *result = get_result("desc data");
328 unsigned int num_rows;
332 num_rows = mysql_num_rows(result);
334 mysql_free_result(result);
337 mysql_data_seek(result, 4); /* skip Lastplayed, Numplayed... */
342 * list all attributes
344 int com_laa(int fd, int argc, __a_unused char *argv[])
350 return -E_MYSQL_SYNTAX;
351 result = get_all_attributes();
354 ret = print_results(fd, result, 0, 0, mysql_num_rows(result) - 5, 0);
355 mysql_free_result(result);
362 int com_hist(int fd, int argc, char *argv[]) {
366 unsigned int num_rows;
369 return -E_MYSQL_SYNTAX;
371 char *tmp = escape_str(argv[1]);
374 atts = make_message("where %s = '1'", tmp);
377 atts = para_strdup(NULL);
379 q = make_message("select name, to_days(now()) - to_days(lastplayed) from "
380 "data %s order by lastplayed", atts);
382 result = get_result(q);
386 num_rows = mysql_num_rows(result);
389 ret = print_results(fd, result, 0, 0, num_rows - 1, 1);
390 mysql_free_result(result);
395 * get last num audio files
397 int com_last(int fd, int argc, char *argv[])
408 return -E_MYSQL_SYNTAX;
409 q = make_message("select name from data order by lastplayed desc "
411 result = get_result(q);
415 ret = print_results(fd, result, 0, 0, mysql_num_rows(result) - 1, 0);
416 mysql_free_result(result);
420 int com_mbox(int fd, int argc, char *argv[])
425 unsigned int num_rows, num_fields;
426 char *query = para_strdup("select concat('From foo@localhost ', "
427 "date_format(Lastplayed, '%a %b %e %T %Y'), "
428 "'\nReceived: from\nTo: bar\n");
431 result = get_all_attributes();
435 while ((row = mysql_fetch_row(result))) {
440 tmp = make_message("%s X-Attribute-%s: ', %s, '\n", query,
445 query = para_strcat(query,
453 char *esc = escape_str(argv[1]), *tmp;
457 tmp = make_message("%s where name LIKE '%s'", query, esc);
462 mysql_free_result(result);
464 result = get_result(query);
467 ret = -E_EMPTY_RESULT;
468 num_fields = mysql_field_count(mysql_ptr);
469 num_rows = mysql_num_rows(result);
470 if (!num_fields || !num_rows)
472 ret = print_results(fd, result, 0, 0, num_rows - 1, num_fields - 1);
476 mysql_free_result(result);
480 /* get attributes by name. If verbose is not 0, get_a writes a string
481 * into atts of the form 'att1="0",att2="1"', which is used in com_cam
482 * for contructing a mysql update query.
483 * never returns NULL in *NON VERBOSE* mode
485 static char *get_atts(char *name, int verbose)
487 char *atts = NULL, *buf, *ebn;
488 void *result = NULL, *result2 = NULL;
491 unsigned int num_fields;
494 result2 = get_all_attributes();
498 if (!(ebn = escaped_basename(name)))
500 buf = make_message("select * from data where name='%s'", ebn);
503 result = get_result(buf);
507 ret = -E_EMPTY_RESULT;
508 num_fields = mysql_num_fields(result);
511 mysql_data_seek(result2, 4); /* skip Lastplayed, Numplayed... */
512 row = mysql_fetch_row(result);
516 for (i = 4; i < num_fields; i++) {
517 int is_set = row[i] && !strcmp(row[i], "1");
518 row2 = mysql_fetch_row(result2);
519 if (!row2 || !row2[0])
521 if (atts && (verbose || is_set))
522 atts = para_strcat(atts, verbose? "," : " ");
523 if (is_set || verbose)
524 atts = para_strcat(atts, row2[0]);
526 atts = para_strcat(atts, is_set? "=\"1\"" : "=\"0\"");
531 mysql_free_result(result2);
533 mysql_free_result(result);
534 if (!atts && !verbose)
535 atts = para_strdup("(none)");
539 /* never returns NULL in verbose mode */
540 static char *get_meta(char *name, int verbose)
544 char *ebn, *q, *ret = NULL;
545 const char *verbose_fmt =
546 "select concat('lastplayed: ', "
547 "(to_days(now()) - to_days(lastplayed)),"
548 "' day(s). numplayed: ', numplayed, "
549 "', pic: ', pic_id) "
550 "from data where name = '%s'";
551 /* is that really needed? */
552 const char *fmt = "select concat('lastplayed=\\'', lastplayed, "
553 "'\\', numplayed=\\'', numplayed, "
554 "'\\', pic_id=\\'', pic_id, '\\'') "
555 "from data where name = '%s'";
557 if (!(ebn = escaped_basename(name)))
559 q = make_message(verbose? verbose_fmt : fmt, ebn);
561 result = get_result(q);
565 row = mysql_fetch_row(result);
568 ret = para_strdup(row[0]);
571 mysql_free_result(result);
573 ret = para_strdup("(not yet played)");
577 static char *get_dir(char *name)
579 char *ret = NULL, *q, *ebn;
583 if (!(ebn = escaped_basename(name)))
585 q = make_message("select dir from dir where name = '%s'", ebn);
587 result = get_result(q);
591 row = mysql_fetch_row(result);
593 ret = para_strdup(row[0]);
594 mysql_free_result(result);
598 /* never returns NULL */
599 static char *get_current_stream(void)
603 void *result = get_result("select def from streams where "
604 "name = 'current_stream'");
608 row = mysql_fetch_row(result);
611 ret = para_strdup(row[0]);
612 mysql_free_result(result);
616 mysql_free_result(result);
617 return para_strdup("(none)");
621 * Read stream definition of stream streamname and construct mysql
622 * query. Return NULL on errors. If streamname is NULL, use current
623 * stream. If that is also NULL, use query that selects everything.
624 * If filename is NULL, query will list everything, otherwise only
625 * the score of given file.
627 static char *get_query(char *streamname, char *filename, int with_path)
629 char *accept_opts = NULL, *deny_opts = NULL, *score = NULL;
630 char *where_clause, *order, *query;
631 char command[255] = ""; /* buffer for sscanf */
635 char *select_clause = NULL;
637 tmp = get_current_stream();
639 tmp = escape_str(streamname);
643 if (!strcmp(tmp, "(none)")) {
646 char *ret, *ebn = escaped_basename(filename);
649 ret = make_message("select to_days(now()) - "
650 "to_days(lastplayed) from data "
651 "where name = '%s'", ebn);
657 "select concat(dir.dir, '/', dir.name) "
658 "from data, dir where dir.name = data.name "
659 "order by data.lastplayed"
662 "select name from data where name is not NULL "
663 "order by lastplayed"
667 query = make_message("select def from streams where name = '%s'",
669 result = get_result(query);
674 row = mysql_fetch_row(result);
680 char *arg, *line = end;
682 if (!(end = strchr(line, '\n')))
686 if (sscanf(line, "%200s%n", command, &n) < 1)
689 if (!strcmp(command, "accept:")) {
690 char *tmp2 = s_a_r_list(macro_list, arg);
692 accept_opts = para_strcat(
693 accept_opts, " or ");
694 accept_opts = para_strcat(accept_opts, tmp2);
698 if (!strcmp(command, "deny:")) {
699 char *tmp2 = s_a_r_list(macro_list, arg);
701 deny_opts = para_strcat(deny_opts, " or ");
702 deny_opts = para_strcat(deny_opts, tmp2);
706 if (!score && !strcmp(command, "score:"))
707 score = s_a_r_list(macro_list, arg);
710 score = s_a_r_list(macro_list, conf.mysql_default_score_arg);
715 char *ebn = escaped_basename(filename);
718 select_clause = make_message("select %s from data ", score);
720 where_clause = make_message( "where name = '%s' ", ebn);
722 order = para_strdup("");
725 select_clause = para_strdup(with_path?
726 "select concat(dir.dir, '/', dir.name) from data, dir "
727 "where dir.name = data.name "
729 "select name from data where name is not NULL");
730 order = make_message("order by -(%s)", score);
732 if (accept_opts && deny_opts) {
733 where_clause = make_message("and ((%s) and not (%s)) ",
734 accept_opts, deny_opts);
737 if (accept_opts && !deny_opts) {
738 where_clause = make_message("and (%s) ", accept_opts);
741 if (!accept_opts && deny_opts) {
742 where_clause = make_message("and not (%s) ", deny_opts);
745 where_clause = para_strdup("");
747 query = make_message("%s %s %s", select_clause, where_clause, order);
757 mysql_free_result(result);
764 * This is called from server and from some commands. Name must not be NULL
765 * Never returns NULL.
767 static char *get_selector_info(char *name)
769 char *meta, *atts, *info, *dir, *query, *stream;
771 MYSQL_ROW row = NULL;
774 return para_strdup("(none)");
775 stream = get_current_stream();
776 meta = get_meta(name, 1);
777 atts = get_atts(name, 0);
780 query = get_query(stream, name, 0); /* FIXME: pass stream == NULL instead? */
783 result = get_result(query);
786 row = mysql_fetch_row(result);
788 info = make_message("dbinfo1:dir: %s\n"
789 "dbinfo2:stream: %s, %s, score: %s\n"
791 dir? dir : "(not contained in table)",
793 (result && row && row[0])? row[0] : "(no score)",
800 mysql_free_result(result);
805 /* might return NULL */
806 static char *get_current_audio_file(void)
810 name = para_basename(mmd->filename);
815 /* list attributes / print database info */
816 static int com_la_info(int fd, int argc, char *argv[])
818 char *name = NULL, *meta = NULL, *atts = NULL, *dir = NULL;
819 int ret, com_la = strcmp(argv[0], "info");
822 ret = -E_GET_AUDIO_FILE;
823 if (!(name = get_current_audio_file()))
825 ret = send_va_buffer(fd, "%s\n", name);
830 if (!(name = escaped_basename(argv[1])))
833 meta = get_meta(name, 1);
834 atts = get_atts(name, 0);
837 ret = send_va_buffer(fd, "%s\n", atts);
839 ret = send_va_buffer(fd, "dir: %s\n" "%s\n" "attributes: %s\n",
840 dir? dir : "(not contained in table)", meta, atts);
849 /* list attributes */
850 int com_la(int fd, int argc, char *argv[])
852 return com_la_info(fd, argc, argv);
855 /* print database info */
856 int com_info(int fd, int argc, char *argv[])
858 return com_la_info(fd, argc, argv);
861 static int change_stream(const char *stream)
865 query = make_message("update streams set def='%s' "
866 "where name = 'current_stream'", stream);
867 ret = real_query(query);
872 static int get_pic_id_by_name(char *name)
879 if (!(ebn = escaped_basename(name)))
881 q = make_message("select pic_id from data where name = '%s'", ebn);
883 result = get_result(q);
887 row = mysql_fetch_row(result);
891 mysql_free_result(result);
895 static int remove_entry(const char *name)
897 char *q, *ebn = escaped_basename(name);
902 q = make_message("delete from data where name = '%s'", ebn);
903 real_query(q); /* ignore errors */
905 q = make_message("delete from dir where name = '%s'", ebn);
906 real_query(q); /* ignore errors */
914 static int add_entry(const char *name)
916 char *q, *dn, *ebn = NULL, *edn = NULL;
920 return -E_MYSQL_SYNTAX;
921 ebn = escaped_basename(name);
924 ret = -E_MYSQL_SYNTAX;
925 dn = para_dirname(name);
929 edn = escape_str(dn);
933 q = make_message("insert into data (name, pic_id) values "
934 "('%s', '%s')", ebn, "1");
936 // ret = 1; PARA_DEBUG_LOG("q: %s\n", q);
940 q = make_message("insert into dir (name, dir) values "
941 "('%s', '%s')", ebn, edn);
942 // ret = 1; PARA_DEBUG_LOG("q: %s\n", q);
956 static int com_rm_ne(__a_unused int fd, int argc, char *argv[])
958 int ne = !strcmp(argv[0], "ne");
961 return -E_MYSQL_SYNTAX;
962 for (i = 1; i < argc; i++) {
963 ret = remove_entry(argv[i]);
968 ret = add_entry(argv[i]);
978 int com_rm(int fd, int argc, char *argv[])
980 return com_rm_ne(fd, argc, argv);
986 int com_ne(int fd, int argc, char *argv[])
988 return com_ne(fd, argc, argv);
994 int com_mv(__a_unused int fd, int argc, char *argv[])
996 char *q, *dn, *ebn1 = NULL, *ebn2 = NULL, *edn = NULL;
1000 return -E_MYSQL_SYNTAX;
1002 ebn1 = escaped_basename(argv[1]);
1003 ebn2 = escaped_basename(argv[2]);
1004 if (!ebn1 || !ebn2 || !*ebn1 || !*ebn2)
1006 ret = -E_MYSQL_SYNTAX;
1007 if (!strcmp(ebn1, ebn2))
1009 remove_entry(argv[2]); /* no need to escape, ignore error */
1010 q = make_message("update data set name = '%s' where name = '%s'",
1012 ret = real_query(q);
1016 ret = -E_AUDIO_FILE;
1017 if (!mysql_affected_rows(mysql_ptr))
1019 q = make_message("update dir set name = '%s' where name = '%s'",
1021 ret = real_query(q);
1027 dn = para_dirname(argv[2]);
1031 edn = escape_str(dn);
1038 q = make_message("update dir set dir = '%s' where name = '%s'",
1040 ret = real_query(q);
1052 static int com_set(__a_unused int fd, int argc, char *argv[])
1057 const char *field = strcmp(argv[0], "picass")? "numplayed" : "pic_id";
1060 return -E_MYSQL_SYNTAX;
1062 for (i = 2; i < argc; i++) {
1063 ebn = escaped_basename(argv[i]);
1066 q = make_message("update data set %s = %lu "
1067 "where name = '%s'", field, id, ebn);
1069 ret = real_query(q);
1078 * snp: set numplayed
1080 int com_picass(int fd, int argc, char *argv[])
1082 return com_set(fd, argc, argv);
1086 * snp: set numplayed
1088 int com_snp(int fd, int argc, char *argv[])
1090 return com_set(fd, argc, argv);
1094 * picch: change entry's name in pics table
1096 int com_picch(__a_unused int fd, int argc, char *argv[])
1103 return -E_MYSQL_SYNTAX;
1106 tmp = escape_str(argv[2]);
1109 q = make_message("update pics set name = '%s' where id = %lu", tmp, id);
1111 ret = real_query(q);
1117 * piclist: print list of pics in db
1119 int com_piclist(__a_unused int fd, int argc, __a_unused char *argv[])
1121 void *result = NULL;
1123 unsigned long *length;
1127 return -E_MYSQL_SYNTAX;
1128 result = get_result("select id,name,pic from pics order by id");
1131 while ((row = mysql_fetch_row(result))) {
1132 length = mysql_fetch_lengths(result);
1133 if (!row || !row[0] || !row[1] || !row[2])
1135 ret = send_va_buffer(fd, "%s\t%lu\t%s\n", row[0], length[2], row[1]);
1141 mysql_free_result(result);
1146 * picdel: delete picture from database
1148 int com_picdel(int fd, int argc, char *argv[])
1156 return -E_MYSQL_SYNTAX;
1157 for (i = 1; i < argc; i++) {
1159 q = make_message("delete from pics where id = %lu", id);
1160 ret = real_query(q);
1164 aff = mysql_affected_rows(mysql_ptr);
1166 ret = send_va_buffer(fd, "No such id: %lu\n", id);
1171 q = make_message("update data set pic_id = 1 where pic_id = %lu", id);
1172 ret = real_query(q);
1178 * pic: get picture by name or by number
1180 int com_pic(int fd, int argc, char *argv[])
1182 void *result = NULL;
1184 unsigned long *length, id;
1186 char *q, *name = NULL;
1189 ret = -E_GET_AUDIO_FILE;
1190 name = get_current_audio_file();
1193 name = escaped_basename(argv[1]);
1198 id = atoi(name + 1);
1200 id = get_pic_id_by_name(name);
1204 q = make_message("select pic from pics where id = '%lu'", id);
1205 result = get_result(q);
1209 row = mysql_fetch_row(result);
1211 if (!row || !row[0])
1213 length = mysql_fetch_lengths(result);
1214 ret = send_bin_buffer(fd, row[0], *length);
1216 mysql_free_result(result);
1221 int com_strdel(__a_unused int fd, int argc, char *argv[])
1227 return -E_MYSQL_SYNTAX;
1228 tmp = escape_str(argv[1]);
1231 q = make_message("delete from streams where name='%s'", tmp);
1233 ret = real_query(q);
1241 int com_ls(int fd, int argc, char *argv[])
1246 unsigned int num_rows;
1249 return -E_MYSQL_SYNTAX;
1251 char *tmp = escape_str(argv[1]);
1254 q = make_message("select name from data where name like '%s'",
1258 q = para_strdup("select name from data");
1259 result = get_result(q);
1263 num_rows = mysql_num_rows(result);
1266 ret = print_results(fd, result, 0, 0, num_rows - 1, 0);
1267 mysql_free_result(result);
1274 int com_summary(__a_unused int fd, int argc, __a_unused char *argv[])
1279 void *result2 = NULL;
1280 const char *fmt = "select count(name) from data where %s='1'";
1281 int ret = -E_NORESULT;
1284 return -E_MYSQL_SYNTAX;
1285 result = get_all_attributes();
1288 while ((row = mysql_fetch_row(result))) {
1295 buf = make_message(fmt, row[0]);
1296 result2 = get_result(buf);
1301 row2 = mysql_fetch_row(result2);
1302 if (!row2 || !row2[0])
1304 ret = send_va_buffer(fd, "%s\t%s\n", row[0], row2[0]);
1311 mysql_free_result(result2);
1313 mysql_free_result(result);
1317 static int get_numplayed(char *name)
1321 const char *fmt = "select numplayed from data where name = '%s'";
1322 char *buf = make_message(fmt, name);
1323 int ret = -E_NORESULT;
1325 result = get_result(buf);
1330 row = mysql_fetch_row(result);
1331 if (!row || !row[0])
1336 mysql_free_result(result);
1340 static int update_audio_file(char *name)
1343 const char *fmt1 = "update data set lastplayed = now() where name = '%s'";
1344 const char *fmt2 = "update data set numplayed = %i where name = '%s'";
1346 char *ebn = escaped_basename(name);
1351 q = make_message(fmt1, ebn);
1352 ret = real_query(q);
1356 ret = get_numplayed(ebn);
1359 q = make_message(fmt2, ret + 1, ebn);
1360 ret = real_query(q);
1367 /* If called as child, mmd_lock must be held */
1368 static void update_mmd(char *info)
1370 PARA_DEBUG_LOG("%s", "updating shared memory area\n");
1371 strncpy(mmd->selector_info, info, MMD_INFO_SIZE - 1);
1372 mmd->selector_info[MMD_INFO_SIZE - 1] = '\0';
1375 static void update_audio_file_server_handler(char *name)
1378 info = get_selector_info(name);
1381 update_audio_file(name);
1384 int com_us(__a_unused int fd, int argc, char *argv[])
1390 return -E_MYSQL_SYNTAX;
1391 tmp = escape_str(argv[1]);
1394 ret = update_audio_file(argv[1]);
1399 static void refresh_selector_info(void)
1401 char *name = get_current_audio_file();
1406 info = get_selector_info(name);
1414 /* select previous / next stream */
1415 static int com_ps_ns(__a_unused int fd, int argc, char *argv[])
1417 char *query, *stream = get_current_stream();
1418 void *result = get_result("select name from streams");
1420 int match = -1, ret, i;
1421 unsigned int num_rows;
1424 return -E_MYSQL_SYNTAX;
1428 num_rows = mysql_num_rows(result);
1429 ret = -E_EMPTY_RESULT;
1433 for (i = 0; i < num_rows; i++) {
1434 row = mysql_fetch_row(result);
1435 if (!row || !row[0])
1437 if (!strcmp(row[0], "current_stream"))
1439 if (!strcmp(row[0], stream)) {
1447 if (!strcmp(argv[0], "ps"))
1448 i = match > 0? match - 1 : num_rows - 1;
1450 i = match < num_rows - 1? match + 1 : 0;
1452 mysql_data_seek(result, i);
1453 row = mysql_fetch_row(result);
1454 if (!row || !row[0])
1456 if (!strcmp(row[0], "current_stream")) {
1457 if (!strcmp(argv[0], "ps")) {
1459 i = i < 0? i + num_rows : i;
1462 i = i > num_rows - 1? i - num_rows : i;
1464 mysql_data_seek(result, i);
1465 row = mysql_fetch_row(result);
1466 if (!row || !row[0])
1469 query = make_message("update streams set def='%s' where name = "
1470 "'current_stream'", row[0]);
1471 ret = real_query(query);
1473 refresh_selector_info();
1477 mysql_free_result(result);
1481 /* select previous stream */
1482 int com_ps(int fd, int argc, char *argv[])
1484 return com_ps_ns(fd, argc, argv);
1487 /* select next stream */
1488 int com_ns(int fd, int argc, char *argv[])
1490 return com_ps_ns(fd, argc, argv);
1494 int com_streams(int fd, int argc, __a_unused char *argv[])
1496 unsigned int num_rows;
1497 int i, ret = -E_NORESULT;
1501 if (argc > 1 && strcmp(argv[1], "current_stream"))
1502 return -E_MYSQL_SYNTAX;
1504 char *cs = get_current_stream();
1505 ret = send_va_buffer(fd, "%s\n", cs);
1509 result = get_result("select name from streams");
1512 num_rows = mysql_num_rows(result);
1517 for (i = 0; i < num_rows; i++) {
1518 row = mysql_fetch_row(result);
1519 if (!row || !row[0])
1521 if (strcmp(row[0], "current_stream"))
1522 send_va_buffer(fd, "%s\n", row[0]);
1527 mysql_free_result(result);
1531 /* query stream definition */
1532 int com_strq(int fd, int argc, char *argv[])
1540 ret = -E_GET_STREAM;
1541 name = get_current_stream();
1544 name = escaped_basename(argv[1]);
1549 query = make_message("select def from streams where name='%s'", name);
1551 result = get_result(query);
1556 row = mysql_fetch_row(result);
1557 if (!row || !row[0])
1559 /* no '\n' needed */
1560 ret = send_buffer(fd, row[0]);
1563 mysql_free_result(result);
1567 /* change stream / change stream and play */
1568 static int com_cs_csp(int fd, int argc, char *argv[])
1570 int ret, stream_change;
1571 char *query, *stream = NULL;
1572 char *old_stream = get_current_stream();
1573 int csp = !strcmp(argv[0], "csp");
1575 ret = -E_MYSQL_SYNTAX;
1581 ret = send_va_buffer(fd, "%s\n", old_stream);
1585 /* test if stream is valid, no need to escape argv[1] */
1586 query = get_query(argv[1], NULL, 0);
1591 stream = escape_str(argv[1]);
1594 stream_change = strcmp(stream, old_stream);
1595 if (stream_change) {
1596 ret = change_stream(stream);
1599 refresh_selector_info();
1603 mmd->new_vss_status_flags |= VSS_PLAYING;
1605 mmd->new_vss_status_flags |= VSS_NEXT;
1616 int com_cs(int fd, int argc, char *argv[])
1618 return com_cs_csp(fd, argc, argv);
1621 /* change stream and play */
1622 int com_csp(int fd, int argc, char *argv[])
1624 return com_cs_csp(fd, argc, argv);
1627 /* score list / skip */
1628 static int com_sl_skip(int fd, int argc, char *argv[])
1630 void *result = NULL;
1632 int ret, i, skip = !strcmp(argv[0], "skip");
1633 char *query, *stream, *tmp;
1634 unsigned int num_rows, num;
1637 return -E_MYSQL_SYNTAX;
1638 num = atoi(argv[1]);
1640 return -E_MYSQL_SYNTAX;
1642 stream = get_current_stream();
1644 return -E_GET_STREAM;
1646 stream = escape_str(argv[2]);
1650 tmp = get_query(stream, NULL, 0);
1653 return -E_GET_QUERY;
1654 query = make_message("%s limit %d", tmp, num);
1657 result = get_result(query);
1661 ret = -E_EMPTY_RESULT;
1662 num_rows = mysql_num_rows(result);
1665 for (i = 0; i < num_rows && i < num; i++) {
1666 row = mysql_fetch_row(result);
1668 send_va_buffer(fd, "Skipping %s\n", row[0]);
1669 update_audio_file(row[0]);
1671 send_va_buffer(fd, "%s\n", row[0]? row[0]: "BUG");
1676 mysql_free_result(result);
1681 int com_sl(int fd, int argc, char *argv[])
1683 return com_sl_skip(fd, argc, argv);
1687 int com_skip(int fd, int argc, char *argv[])
1689 return com_sl_skip(fd, argc, argv);
1693 * update attributes of name
1695 static int update_atts(int fd, char *name, char *atts)
1698 char *ebn, *q, *old, *new = NULL;
1702 ebn = escaped_basename(name);
1705 q = make_message("update data set %s where name = '%s'", atts, ebn);
1706 old = get_atts(ebn, 0);
1707 send_va_buffer(fd, "old: %s\n", old);
1709 ret = real_query(q);
1713 new = get_atts(ebn, 0);
1714 ret = send_va_buffer(fd, "new: %s\n", new);
1724 int com_sa(int fd, int argc, char *argv[])
1727 char *atts = NULL, *name;
1730 return -E_MYSQL_SYNTAX;
1731 for (i = 1; i < argc; i++) {
1733 char *esc, *tmp, *p =argv[i];
1734 int len = strlen(p);
1738 switch (p[len - 1]) {
1749 esc = escape_str(p);
1752 tmp = make_message("%s%s='%s'", atts? "," : "", esc,
1755 atts = para_strcat(atts, tmp);
1761 if (i >= argc) { /* no name given, use current af */
1762 ret = -E_GET_AUDIO_FILE;
1763 if (!(name = get_current_audio_file()))
1765 ret = update_atts(fd, name, atts);
1769 for (; argv[i] && ret >= 0; i++)
1770 ret = update_atts(fd, argv[i], atts);
1772 refresh_selector_info();
1781 int com_cam(int fd, int argc, char *argv[])
1783 char *name = NULL, *meta = NULL, *atts = NULL;
1787 return -E_MYSQL_SYNTAX;
1788 if (!(name = escaped_basename(argv[1])))
1791 if (!(atts = get_atts(name, 1)))
1794 if (!(meta = get_meta(name, 0)))
1796 for (i = 2; i < argc; i++) {
1799 if (!(ebn = escaped_basename(argv[i])))
1801 ret = send_va_buffer(fd, "updating %s\n", ebn);
1806 q = make_message("update data set %s where name = '%s'",
1808 if ((ret = update_atts(fd, ebn, atts)) >= 0)
1809 ret = real_query(q);
1829 static int com_vrfy_clean(int fd, int argc, __a_unused char *argv[])
1832 int ret, vrfy_mode = strcmp(argv[0], "clean");
1833 void *result = NULL;
1834 unsigned int num_rows;
1839 return -E_MYSQL_SYNTAX;
1841 result = get_result("select data.name from data left join dir on "
1842 "dir.name = data.name where dir.name is NULL");
1845 num_rows = mysql_num_rows(result);
1847 ret = send_buffer(fd, "No invalid entries\n");
1851 send_va_buffer(fd, "found %i invalid entr%s\n", num_rows,
1852 num_rows == 1? "y" : "ies");
1853 ret = print_results(fd, result, 0, 0, num_rows - 1, 0);
1856 while ((row = mysql_fetch_row(result))) {
1861 escaped_name = escape_str(row[0]);
1864 send_va_buffer(fd, "deleting %s\n", escaped_name);
1865 query = make_message("delete from data where name = '%s'",
1867 ret = real_query(query);
1875 mysql_free_result(result);
1882 int com_vrfy(int fd, int argc, char **argv)
1884 return com_vrfy_clean(fd, argc, argv);
1890 int com_clean(int fd, int argc, char **argv)
1892 return com_vrfy_clean(fd, argc, argv);
1895 static FILE *out_file;
1897 static int mysql_write_tmp_file(const char *dir, const char *name)
1899 int ret = -E_TMPFILE;
1900 char *msg = make_message("%s\t%s\n", dir, name);
1901 if (fputs(msg, out_file) != EOF)
1910 int com_upd(int fd, int argc, __a_unused char *argv[])
1912 char *tempname = NULL, *query = NULL;
1913 int ret, out_fd = -1, num = 0;
1914 void *result = NULL;
1915 unsigned int num_rows;
1919 return -E_MYSQL_SYNTAX;
1921 tempname = para_strdup("/tmp/mysql.tmp.XXXXXX");
1922 ret = para_mkstemp(tempname, S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH);
1926 out_file = fdopen(out_fd, "w");
1931 if (find_audio_files(conf.mysql_audio_file_dir_arg, mysql_write_tmp_file) < 0)
1933 num = ftell(out_file);
1935 * we have to make sure the file hit the disk before we call
1940 PARA_DEBUG_LOG("wrote tempfile %s (%d bytes)\n", tempname, num);
1943 if ((ret = real_query("delete from dir")) < 0)
1945 query = make_message("load data infile '%s' ignore into table dir "
1946 "fields terminated by '\t' lines terminated by '\n' "
1947 "(dir, name)", tempname);
1948 ret = real_query(query);
1952 result = get_result("select dir.name from dir left join data on "
1953 "data.name = dir.name where data.name is NULL");
1957 num_rows = mysql_num_rows(result);
1959 ret = send_buffer(fd, "no new entries\n");
1962 while ((row = mysql_fetch_row(result))) {
1967 send_va_buffer(fd, "new entry: %s\n", row[0]);
1968 erow = escape_str(row[0]);
1971 query = make_message("insert into data (name, pic_id) values "
1972 "('%s','%s')", erow, "1");
1974 ret = real_query(query);
1987 mysql_free_result(result);
1991 static char **server_get_audio_file_list(unsigned int num)
1993 char **list = para_malloc((num + 1) * sizeof(char *));
1994 char *tmp, *query, *stream = get_current_stream();
1995 void *result = NULL;
1996 unsigned int num_rows;
2000 tmp = get_query(stream, NULL, 1);
2004 query = make_message("%s limit %d", tmp, num);
2006 result = get_result(query);
2010 num_rows = mysql_num_rows(result);
2013 for (i = 0; i < num_rows && i < num; i++) {
2014 row = mysql_fetch_row(result);
2015 if (!row || !row[0])
2017 list[i] = para_strdup(row[0]);
2030 mysql_free_result(result);
2035 * connect to mysql server, return mysql pointer on success, -E_NOTCONN
2036 * on errors. Called from parent on startup and also from com_cdb().
2038 static int init_mysql_server(void)
2040 char *u = conf.mysql_user_arg? conf.mysql_user_arg : para_logname();
2042 mysql_ptr = mysql_init(NULL);
2044 PARA_CRIT_LOG("%s", "mysql init error\n");
2047 PARA_DEBUG_LOG("connecting: %s@%s:%d\n", u, conf.mysql_host_arg,
2048 conf.mysql_port_arg);
2049 if (!conf.mysql_user_arg)
2052 * If host is NULL a connection to the local host is assumed,
2053 * If user is NULL, the current user is assumed
2055 if (!(mysql_ptr = mysql_real_connect(mysql_ptr,
2056 conf.mysql_host_arg,
2057 conf.mysql_user_arg,
2058 conf.mysql_passwd_arg,
2059 conf.mysql_database_arg,
2060 conf.mysql_port_arg, NULL, 0))) {
2061 PARA_CRIT_LOG("%s", "connect error\n");
2064 PARA_INFO_LOG("%s", "success\n");
2068 /* mmd lock must be held */
2069 static void write_msg2mmd(int success)
2071 sprintf(mmd->selector_info, "dbinfo1:%s\ndbinfo2:mysql-%s\ndbinfo3:\n",
2072 success < 0? PARA_STRERROR(-success) :
2073 "successfully connected to mysql server",
2074 success < 0? "" : mysql_get_server_info(mysql_ptr));
2077 /* create database */
2078 int com_cdb(int fd, int argc, char *argv[])
2084 PARA_INFO_LOG("%s", "closing database\n");
2085 mysql_close(mysql_ptr);
2087 /* dont use any database */
2088 conf.mysql_database_arg = NULL; /* leak? */
2089 ret = -E_MYSQL_INIT;
2090 if (init_mysql_server() < 0 || !mysql_ptr)
2093 conf.mysql_database_arg = para_strdup("paraslash");
2096 conf.mysql_database_arg = escape_str(argv[1]);
2097 if (!conf.mysql_database_arg)
2100 query = make_message("create database %s", conf.mysql_database_arg);
2101 ret = real_query(query);
2105 /* reconnect with database just created */
2106 mysql_close(mysql_ptr);
2107 ret = -E_MYSQL_INIT;
2108 if (init_mysql_server() < 0 || !mysql_ptr)
2114 if (real_query("create table data (name varchar(255) binary not null "
2116 "lastplayed datetime not null default "
2118 "numplayed int not null default 0, "
2119 "pic_id bigint unsigned not null default 1)") < 0)
2121 if (real_query("create table dir (name varchar(255) binary not null "
2122 "primary key, dir varchar(255) default null)") < 0)
2124 if (real_query("create table pics ("
2125 "id bigint(20) unsigned not null primary key "
2127 "name varchar(255) binary not null, "
2128 "pic mediumblob not null)") < 0)
2130 if (real_query("create table streams ("
2131 "name varchar(255) binary not null primary key, "
2132 "def blob not null)") < 0)
2134 if (real_query("insert into streams (name, def) values "
2135 "('current_stream', '(none)')") < 0)
2137 ret = send_va_buffer(fd, "successfully created database %s\n",
2138 conf.mysql_database_arg);
2143 static void shutdown_connection(void)
2146 PARA_NOTICE_LOG("%s", "shutting down mysql connection\n");
2147 mysql_close(mysql_ptr);
2153 * the init function of the mysql-based audio file selector
2155 * Check the command line options and initialize all function pointers of \a db.
2156 * Connect to the mysql server and initialize the info string.
2158 * \sa struct audio_file_selector, misc_meta_data::selector_info,
2161 int mysql_selector_init(struct audio_file_selector *db)
2165 if (!conf.mysql_passwd_given)
2166 return -E_NO_MYSQL_PASSWD;
2167 if (!conf.mysql_audio_file_dir_given)
2168 return -E_NO_AF_DIR;
2170 db->cmd_list = mysql_selector_cmds;
2171 db->get_audio_file_list = server_get_audio_file_list;
2172 db->update_audio_file = update_audio_file_server_handler;
2173 db->shutdown = shutdown_connection;
2174 ret = init_mysql_server();
2176 PARA_WARNING_LOG("%s\n", PARA_STRERROR(-ret));
2178 return 1; /* return success even if connect failed to give the
2179 * user the chance to exec com_cdb