summaryrefslogtreecommitdiffstats
path: root/mod_log_sql.c
blob: fc9dcc01460b48a1b5c239bb9c38c7cce39b7c5d (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
/* $Id$ */

#if defined(WITH_APACHE20)
#	include "apache20.h"
#elif defined(WITH_APACHE13)
#	include "apache13.h"
#else
#	error Unsupported Apache version
#endif

#ifdef HAVE_CONFIG_H
/* Undefine these to prevent conflicts between Apache ap_config_auto.h and 
 * my config.h. Only really needed for Apache < 2.0.48, but it can't hurt.
 */
#undef PACKAGE_BUGREPORT
#undef PACKAGE_NAME
#undef PACKAGE_STRING
#undef PACKAGE_TARNAME
#undef PACKAGE_VERSION

#include "config.h"
#endif

#if APR_HAVE_UNISTD_H
#include <unistd.h>
#endif
#ifdef HAVE_LIMITS_H
#include <limits.h>
#endif

#include "mod_log_sql.h"

/* Configuratino Defaults */
#define DEFAULT_TRANSFER_LOG_FMT	"AbHhmRSsTUuv"
#define DEFAULT_NOTES_TABLE_NAME	"notes"
#define DEFAULT_HIN_TABLE_NAME		"headers_in"
#define DEFAULT_HOUT_TABLE_NAME		"headers_out"
#define DEFAULT_COOKIE_TABLE_NAME	"cookies"
#define DEFAULT_PRESERVE_FILE		"logs/mod_log_sql-preserve"

/* -------------*
 * DECLARATIONS *
 * -------------*/

/* Declare ourselves so the configuration routines can find and know us. */
module AP_MODULE_DECLARE_DATA log_sql_module;

/* The contents of these are known 'Apache wide' and are not variable
 * on a per-virtual-server basis.  Every virtual server 'knows' the
 * same versions of these variables.
 */

typedef struct {
	int massvirtual;
	int createtables;
	int forcepreserve;
	int disablepreserve;
	char *machid;
	int announce;
	logsql_dbconnection db;
	logsql_dbdriver *driver;
} global_config_t;

static global_config_t global_config;

/* structure to hold helper function info */
typedef struct {
	char key;					/* item letter character */
	logsql_item_func *func;	/* its extraction function */
	const char *sql_field_name;	/* its column in SQL */
	int want_orig_default;		/* if it requires the original request prior to internal redirection */
	int string_contents;		/* if it returns a string */
} logsql_item;

/* But the contents of this structure will vary by virtual server.
 * This permits each virtual server to vary its configuration slightly
 * for per-server customization.
 *
 * Each child process has its own segregated copy of this structure.
 */
typedef struct {
	apr_array_header_t *transfer_ignore_list;
	apr_array_header_t *transfer_accept_list;
	apr_array_header_t *remhost_ignore_list;
	apr_array_header_t *notes_list;
	apr_array_header_t *hout_list;
	apr_array_header_t *hin_list;
	apr_array_header_t *cookie_list;
	const char *notes_table_name;
	const char *hout_table_name;
	const char *hin_table_name;
	const char *cookie_table_name;
	const char *transfer_table_name;
	const char *transfer_log_format;
	apr_pool_t *parsed_pool;
	logsql_item **parsed_log_format;
	const char *preserve_file;
	const char *cookie_name;
} logsql_state;


/* list of "handlers" for log types */
static apr_array_header_t *logsql_item_list;

/* Registration function for extract functions *
 * and update parse cache for transfer_log_format *
 * this is exported from the module */
LOGSQL_DECLARE(void) log_sql_register_item(server_rec *s, apr_pool_t *p,
		char key, logsql_item_func *func, const char *sql_field_name,
		int want_orig_default, int string_contents)
{
	server_rec *ts;
	logsql_item *item;
	if (!logsql_item_list)
		logsql_item_list = apr_array_make(p,10, sizeof(logsql_item));

	item= apr_array_push(logsql_item_list);
	item->key = key;
	item->func = func;
	item->sql_field_name = sql_field_name;
	item->want_orig_default = want_orig_default;
	item->string_contents = string_contents;
	/* some voodoo here to post parse logitems in all servers *
	 * so a "cached" list is used in the main logging loop for speed */
	for (ts = s; ts; ts = ts->next) {
		logsql_state *cfg = ap_get_module_config(ts->module_config,
								&log_sql_module);
		char *pos;

		if (cfg->transfer_log_format) {
			if ( (pos = ap_strchr_c(cfg->transfer_log_format,key))!=NULL) {
				cfg->parsed_log_format[pos - cfg->transfer_log_format] = item;
			}
		}
	}
}

/* Registration function for database drivers */
LOGSQL_DECLARE(void) log_sql_register_driver(apr_pool_t *p,
		logsql_dbdriver *driver)
{
	global_config.driver = driver;
}

/* Include all the core extract functions */
#include "functions.h"
#if defined(WITH_APACHE13)
#	include "functions13.h"
#elif defined(WITH_APACHE20)
#	include "functions20.h"
#endif

static logsql_opendb_ret log_sql_opendb_link(server_rec* s)
{
	logsql_opendb_ret result;
	if (global_config.forcepreserve) {
		global_config.db.connected = 1;
		return LOGSQL_OPENDB_PRESERVE;
	}
	if (global_config.db.connected) {
		return LOGSQL_OPENDB_ALREADY;
	}
	/* database
		host
		user
		passwd
	*/
	if (global_config.db.parms) {
		result = global_config.driver->connect(s, &global_config.db);
		if (result==LOGSQL_OPENDB_FAIL) {
			global_config.db.connected = 0;
		} else {
			global_config.db.connected = 1;			
		}
		return result;
	} else {
		log_error(APLOG_MARK, APLOG_ERR, 0, s,
			"mod_log_sql: insufficient configuration info to establish database link");
		return LOGSQL_OPENDB_FAIL;
	}
}

/*static const char *extract_table(void *data, const char *key, const char *val)
{
    request_rec *r = (request_rec *)data;

	return apr_pstrcat(r->pool, key, " = ", val, " ", NULL);
}*/

static void preserve_entry(request_rec *r, const char *query)
{
	logsql_state *cls = ap_get_module_config(r->server->module_config, 
											&log_sql_module);
	#if defined(WITH_APACHE20)
		apr_file_t *fp;
		apr_status_t result;
	#elif defined(WITH_APACHE13)
		FILE *fp;
		int result;
	#endif
	/* If preserve file is disabled bail out */
	if (global_config.disablepreserve)
       return;
    #if defined(WITH_APACHE20)
		result = apr_file_open(&fp, cls->preserve_file,APR_APPEND | APR_WRITE | APR_CREATE, APR_OS_DEFAULT, r->pool);
    #elif defined(WITH_APACHE13)
		fp = ap_pfopen(r->pool, cls->preserve_file, "a");
		result = (fp)?0:errno;
    #endif
    if (result != APR_SUCCESS) {
		log_error(APLOG_MARK, APLOG_ERR, result, r->server,
			"attempted append of local preserve file '%s' but failed.",cls->preserve_file);
	} else {
		#if defined(WITH_APACHE20)
			apr_file_printf(fp,"%s;\n", query);
			apr_file_close(fp);
		#elif defined(WITH_APACHE13)
			fprintf(fp,"%s;\n", query);
			ap_pfclose(r->pool, fp);
		#endif
		log_error(APLOG_MARK, APLOG_DEBUG, 0, r->server,
			"mod_log_sql: entry preserved in %s", cls->preserve_file);
	}
}


/* ------------------------------------------------*
 * Command handlers that are called according      *
 * to the directives found at Apache runtime.      *
 * ------------------------------------------------*/


static const char *set_global_flag_slot(cmd_parms *cmd, 
										void *struct_ptr, 
										int flag)
{
	void *ptr = &global_config;
	int offset = (int)(long)cmd->info;

	*(int *)((char *)ptr + offset) = flag ? 1 : 0;

    return NULL;
}

static const char *set_global_nmv_flag_slot(cmd_parms *cmd,
											void *struct_ptr,
											int flag)
{
	if (global_config.massvirtual) {
		return apr_psprintf(cmd->pool,
			"mod_log_sql: do not set %s when LogSQLMassVirtualHosting(%d) is On.%d:%d",
			cmd->cmd->name, global_config.massvirtual,
				(int)(long)&global_config, (int)(long)struct_ptr);
	} else {
		return set_global_flag_slot(cmd,struct_ptr,flag);
	}
}

static const char *set_global_string_slot(cmd_parms *cmd,
                                    	  void *struct_ptr,
                                     	  const char *arg)
{
	void *ptr = &global_config;
	int offset = (int)(long)cmd->info;

    *(const char **)((char *)ptr + offset) = apr_pstrdup(cmd->pool,arg);
    return NULL;
}
static const char *set_server_string_slot(cmd_parms *cmd,
                                     		 void *struct_ptr,
                                     		 const char *arg)
{
	void *ptr = ap_get_module_config(cmd->server->module_config,
			&log_sql_module);
	int offset = (int)(long)cmd->info;

	*(const char **)((char *)ptr + offset) = arg;
    
    return NULL;
}

static const char *set_server_file_slot(cmd_parms *cmd,
                                     		 void *struct_ptr,
                                     		 const char *arg)
{
	void *ptr = ap_get_module_config(cmd->server->module_config,
			&log_sql_module);
	int offset = (int)(long)cmd->info;
    const char *path;

    path = ap_server_root_relative(cmd->pool, (char *)arg);
                            
    if (!path) {
        return apr_pstrcat(cmd->pool, "Invalid file path ",
                           arg, NULL);
    }
    
    *(const char **)((char*)ptr + offset) = path;
    
    return NULL;
}

static const char *set_logformat_slot(cmd_parms *cmd,
                                     		 void *struct_ptr,
                                     		 const char *arg)
{
	logsql_state *cfg = ap_get_module_config(cmd->server->module_config,
					&log_sql_module);
    
	cfg->transfer_log_format = arg;
/*	apr_pool_clear(cfg->parsed_pool);*/
	cfg->parsed_log_format = apr_pcalloc(cfg->parsed_pool,
		strlen(arg) * sizeof(logsql_item *));
    return NULL;
}

static const char *set_server_nmv_string_slot(cmd_parms *parms,
											void *struct_ptr,
											const char *arg)
{
	if (global_config.massvirtual)
		return apr_psprintf(parms->pool,
			"mod_log_sql: do not set %s when LogSQLMassVirtualHosting is On.",
			parms->cmd->name);
	else
		return set_server_string_slot(parms,struct_ptr,arg);
}

/* Set a DB connection parameter */
static const char *set_dbparam(cmd_parms *cmd,
								void *struct_ptr,
								const char *key,
								const char *val)
{
	if (!global_config.db.parms) {
		global_config.db.parms = apr_table_make(cmd->pool,5);
	}
	apr_table_set(global_config.db.parms,key,val);
	return NULL;
}

static const char *set_dbparam_slot(cmd_parms *cmd,
								void *struct_ptr,
								const char *arg)
{
	const char *param = (char *)cmd->info;
	set_dbparam(cmd,NULL,param,arg);
	return NULL;
}

/* Sets basic connection info */
static const char *set_log_sql_info(cmd_parms *cmd, void *dummy, 
						const char *host, const char *user, const char *pwd)
{
	if (!user) { /* user is null, so only one arg passed */
	    /* TODO: to more error checking/force all params to be set */
		apr_uri_t uri;
		apr_uri_parse(cmd->pool, host, &uri);
		if (uri.scheme) {
			set_dbparam(cmd, NULL, "driver", uri.scheme);
		}
		if (uri.hostname) {
			set_dbparam(cmd, NULL, "hostname", uri.hostname);
		}
		if (uri.user) {
			set_dbparam(cmd, NULL, "username", uri.user);
		}
		if (uri.password) {
			set_dbparam(cmd, NULL, "password", uri.password);
		}
		if (uri.port_str) {
			set_dbparam(cmd, NULL, "port", uri.port_str);
		}
		if (uri.path) {
			/* extract Database name */
			char *off = ap_strchr(++uri.path,'/');
			if (off)
				*off='\0';
			set_dbparam(cmd, NULL, "database", uri.path);
			
		}
	} else {
		if (*host != '.') {
			set_dbparam(cmd, NULL, "hostname", host);
		}
		if (*user != '.') {
			set_dbparam(cmd, NULL, "username", user);
		}
		if (*pwd != '.') {
			set_dbparam(cmd, NULL, "password", pwd);
		}
	}
	return NULL;
}

static const char *add_server_string_slot(cmd_parms *cmd,
                                     		 void *struct_ptr,
                                     		 const char *arg)
{
	char **addme;
	void *ptr = ap_get_module_config(cmd->server->module_config,
			&log_sql_module);
	int offset = (int)(long)cmd->info;
	apr_array_header_t *ary = *(apr_array_header_t **)((char *)ptr + offset);
	addme = apr_array_push(ary);
	*addme = apr_pstrdup(ary->pool, arg);
	    
    return NULL;
}

/*------------------------------------------------------------*
 * Apache-specific hooks into the module code                 *
 * that are defined in the array 'mysql_lgog_module' (at EOF) *
 *------------------------------------------------------------*/
/* Closing mysql link: child_exit(1.3), pool registration(2.0) */
#if defined(WITH_APACHE20)
static apr_status_t log_sql_close_link(void *data)
{
	global_config.driver->disconnect(&global_config.db);
	return APR_SUCCESS;
}
#elif defined(WITH_APACHE13)
static void log_sql_child_exit(server_rec *s, apr_pool_t *p)
{
	global_config.driver->disconnect(&global_config.db);
}
#endif

/* Child Init */
#if defined(WITH_APACHE20)
static void log_sql_child_init(apr_pool_t *p, server_rec *s)
#elif defined(WITH_APACHE13)
static void log_sql_child_init(server_rec *s, apr_pool_t *p)
#endif
{
	logsql_opendb_ret retval;
#	if defined(WITH_APACHE20)
	/* Register cleanup hook to close DDB connection (apache 2 doesn't have child_exit) */
	apr_pool_cleanup_register(p, NULL, log_sql_close_link, log_sql_close_link);
#	endif
	/* Open a link to the database */
	retval = log_sql_opendb_link(s);
	switch (retval) {
	case LOGSQL_OPENDB_FAIL:
		log_error(APLOG_MARK, APLOG_ERR, 0, s,
			"mod_log_sql: child spawned but unable to open database link");
		break;
	case LOGSQL_OPENDB_SUCCESS:
	case LOGSQL_OPENDB_ALREADY:
		log_error(APLOG_MARK,APLOG_DEBUG,0, s,
			"mod_log_sql: open_logdb_link successful");
		break;
	case LOGSQL_OPENDB_PRESERVE:
 		log_error(APLOG_MARK,APLOG_DEBUG, 0, s,
			"mod_log_sql: open_logdb_link said that preservation is forced");
		break;
	}
}

/* post_config / module_init */
#if defined(WITH_APACHE20)
static int log_sql_post_config(apr_pool_t *p, apr_pool_t *plog, apr_pool_t *ptemp, server_rec *s)
#elif defined(WITH_APACHE13)
static void log_sql_module_init(server_rec *s, apr_pool_t *p)
#endif
{
	/* TODO: Add local_address, remote_address, server_name, connection_status */
	/* Register handlers */
	log_sql_register_item(s,p,'A', extract_agent,             "agent",            1, 1);
	log_sql_register_item(s,p,'a', extract_request_query,     "request_args",     1, 1);
	log_sql_register_item(s,p,'b', extract_bytes_sent,        "bytes_sent",       0, 0);
    log_sql_register_item(s,p,'c', extract_cookie,            "cookie",           0, 1);
	/* TODO: Document */
    log_sql_register_item(s,p,'f', extract_request_file,      "request_file",     0, 1);
	log_sql_register_item(s,p,'H', extract_request_protocol,  "request_protocol", 0, 1);
	log_sql_register_item(s,p,'h', extract_remote_host,       "remote_host",      0, 1);
	log_sql_register_item(s,p,'I', extract_unique_id,         "id",               0, 1);
	log_sql_register_item(s,p,'l', extract_remote_logname,    "remote_logname",   0, 1);
	log_sql_register_item(s,p,'m', extract_request_method,    "request_method",   0, 1);
	log_sql_register_item(s,p,'M', extract_machine_id,        "machine_id",       0, 1);
	log_sql_register_item(s,p,'P', extract_child_pid,         "child_pid",        0, 0);
	log_sql_register_item(s,p,'p', extract_server_port,       "server_port",      0, 0);
	log_sql_register_item(s,p,'R', extract_referer,           "referer",          1, 1);
	log_sql_register_item(s,p,'r', extract_request_line,      "request_line",     1, 1);
	log_sql_register_item(s,p,'S', extract_request_timestamp, "time_stamp",       0, 0);
	log_sql_register_item(s,p,'s', extract_status,            "status",           1, 0);
	log_sql_register_item(s,p,'T', extract_request_duration,  "request_duration", 1, 0);
	log_sql_register_item(s,p,'t', extract_request_time,      "request_time",     0, 1);
	log_sql_register_item(s,p,'u', extract_remote_user,       "remote_user",      0, 1);
	log_sql_register_item(s,p,'U', extract_request_uri,       "request_uri",      1, 1);
	log_sql_register_item(s,p,'v', extract_virtual_host,      "virtual_host",     0, 1);

	if (global_config.announce) {
		ap_add_version_component(p, PACKAGE_NAME"/"PACKAGE_VERSION);
	}
	/* ap_server_root_relative any default preserve file locations */
	{
	    server_rec *cur_s;
	    const char *default_p = ap_server_root_relative(p, DEFAULT_PRESERVE_FILE);
	    for (cur_s = s; cur_s != NULL; cur_s= cur_s->next) {
    	     logsql_state *cls = ap_get_module_config(cur_s->module_config,
									&log_sql_module);
             if (cls->preserve_file == DEFAULT_PRESERVE_FILE)
                 cls->preserve_file = default_p;
	    }
	}
#if defined(WITH_APACHE20)
	return OK;
#endif
}

/* This function handles calling the DB module,  handling errors 
 * of missing tables and lost DB connections, and falling back to 
 * preserving the DB query.
 *
 * Parms: request record, table type, table name, and the full SQL command
 */

static logsql_query_ret safe_sql_insert(request_rec *r, logsql_tabletype table_type,
		const char *table_name, const char *query) {

	logsql_query_ret result;
	logsql_state *cls = ap_get_module_config(r->server->module_config,
									&log_sql_module);

	if (!global_config.db.connected) {
		/* preserve query */
		return LOGSQL_QUERY_NOLINK;
	}

	result = global_config.driver->insert(r,&global_config.db,query);

	/* If we ran the query and it returned an error, try to be robust.
	* (After all, the module thought it had a valid mysql_log connection but the query
	* could have failed for a number of reasons, so we have to be extra-safe and check.) */
	switch (result) {
	case LOGSQL_QUERY_SUCCESS:
		return LOGSQL_QUERY_SUCCESS;
	case LOGSQL_QUERY_NOLINK:
		return LOGSQL_QUERY_FAIL;
		/* TODO: What do we do here */
	case LOGSQL_QUERY_FAIL:
		global_config.driver->disconnect(&global_config.db);
		global_config.db.connected = 0;
		/* re-open the connection and try again */
		if (log_sql_opendb_link(r->server) != LOGSQL_OPENDB_FAIL) {
			log_error(APLOG_MARK,APLOG_NOTICE,0, r->server,"db reconnect successful");
#			if defined(WITH_APACHE20)
			apr_sleep(apr_time_from_sec(0.25)); /* pause for a quarter second */
#			elif defined(WITH_APACHE13)
#            if defined(WIN32)
            Sleep((DWORD)0.25);
#            else
			{
				struct timespec delay, remainder;
				int nanoret;
				delay.tv_sec = 0;
				delay.tv_nsec = 250000000; /* pause for a quarter second */
				nanoret = nanosleep(&delay, &remainder);
				if (nanoret && errno != EINTR) {
					log_error(APLOG_MARK,APLOG_ERR, errno, r->server,"nanosleep unsuccessful");
				}
			}
#			 endif /* win32 */
#			endif
			result = global_config.driver->insert(r,&global_config.db,query);
			if (result == LOGSQL_QUERY_SUCCESS) {
				return LOGSQL_QUERY_SUCCESS;
			} else {
				log_error(APLOG_MARK,APLOG_ERR,0,r->server,"second attempt failed");
				preserve_entry(r, query);
				return LOGSQL_QUERY_PRESERVED;
			}
		} else {
			log_error(APLOG_MARK,APLOG_ERR,0,r->server,
				"reconnect failed, unable to reach database. SQL logging stopped until child regains a db connection.");
			log_error(APLOG_MARK,APLOG_ERR,0,r->server,
				"log entries are being preserved in %s",cls->preserve_file);
			preserve_entry(r, query);
			return LOGSQL_QUERY_PRESERVED;
		}
		break;
	case LOGSQL_QUERY_NOTABLE:
		if (global_config.createtables) {
			log_error(APLOG_MARK,APLOG_ERR,0,r->server,
					"table doesn't exist...creating now");
			if ((result = global_config.driver->create_table(r, &global_config.db, table_type, 
				table_name))!=LOGSQL_TABLE_SUCCESS) {
				log_error(APLOG_MARK,APLOG_ERR,result,r->server,
					"child attempted but failed to create one or more tables for %s, preserving query", ap_get_server_name(r));
				preserve_entry(r, query);
				return LOGSQL_QUERY_PRESERVED;
			} else {
				log_error(APLOG_MARK,APLOG_ERR,result, r->server,
					"tables successfully created - retrying query");
				if ((result = global_config.driver->insert(r,&global_config.db,query))!=LOGSQL_QUERY_SUCCESS) {
					log_error(APLOG_MARK,APLOG_ERR,result, r->server,
						"giving up, preserving query");
					preserve_entry(r, query);
					return LOGSQL_QUERY_PRESERVED;
				} else {
					log_error(APLOG_MARK,APLOG_NOTICE,0, r->server,
						"query successful after table creation");
					return LOGSQL_QUERY_SUCCESS;
				}
			}
		} else {
			log_error(APLOG_MARK,APLOG_ERR,0,r->server,
				"table doesn't exist, creation denied by configuration, preserving query");
			preserve_entry(r, query);
			return LOGSQL_QUERY_PRESERVED;
		}
		break;
	default:
		log_error(APLOG_MARK,APLOG_ERR,0, r->server,
				"Invalid return code from mog_log_query");
		return LOGSQL_QUERY_FAIL;
		break;
	}
	return LOGSQL_QUERY_FAIL;
}

/* This function gets called to create a per-server configuration
 * record.  It will always be called for the main server and
 * for each virtual server that is established.  Each server maintains
 * its own state that is separate from the others' states.
 *
 * The return value is a pointer to the created module-specific
 * structure.
 */
static void *log_sql_make_state(apr_pool_t *p, server_rec *s)
{
	logsql_state *cls = (logsql_state *) apr_pcalloc(p, sizeof(logsql_state));

	/* These defaults are overridable in the httpd.conf file. */
	cls->transfer_log_format = DEFAULT_TRANSFER_LOG_FMT;
	apr_pool_create(&cls->parsed_pool, p);
	cls->parsed_log_format = apr_pcalloc(cls->parsed_pool,
			strlen(cls->transfer_log_format) * sizeof(logsql_item *));
	cls->notes_table_name = DEFAULT_NOTES_TABLE_NAME;
	cls->hin_table_name = DEFAULT_HIN_TABLE_NAME;
	cls->hout_table_name = DEFAULT_HOUT_TABLE_NAME;
	cls->cookie_table_name = DEFAULT_COOKIE_TABLE_NAME;
	cls->preserve_file = DEFAULT_PRESERVE_FILE;

	cls->transfer_ignore_list = apr_array_make(p, 1, sizeof(char *));
	cls->transfer_accept_list = apr_array_make(p, 1, sizeof(char *));
	cls->remhost_ignore_list  = apr_array_make(p, 1, sizeof(char *));
	cls->notes_list           = apr_array_make(p, 1, sizeof(char *));
	cls->hin_list             = apr_array_make(p, 1, sizeof(char *));
	cls->hout_list            = apr_array_make(p, 1, sizeof(char *));
	cls->cookie_list          = apr_array_make(p, 1, sizeof(char *));

	return (void *) cls;
}


/* Iterates through an array of char* and searches for a matching element
 * Returns 0 if not found, 1 if found */
static int in_array(apr_array_header_t *ary, const char *elem)
{
	int itr;
	for (itr = 0; itr < ary->nelts; itr++) {
		if (!strcmp(elem,((char **)ary->elts)[itr])) {
			return 1;
		}
	}
	return 0;
}


/* Parse through cookie lists and merge based on +/- prefixes */
#define DO_MERGE_ARRAY(parent,child,pool) \
if (apr_is_empty_array(child)) { \
	apr_array_cat(child, parent); \
} else { \
	apr_array_header_t *addlist, *dellist; \
	char **elem, **ptr = (char **)(child->elts); \
	int itr, overwrite = 0; \
	addlist = apr_array_make(pool,5,sizeof(char *)); \
	dellist = apr_array_make(subp,5,sizeof(char *)); \
\
	for (itr=0; itr<child->nelts; itr++) { \
		if (*ptr[itr] == '+') { \
			elem = (char **)apr_array_push(addlist); \
			*elem = (ptr[itr]+1); \
		} else if (*ptr[itr] == '-') { \
			elem = (char **)apr_array_push(dellist); \
			*elem = (ptr[itr]+1); \
		} else { \
			overwrite = 1; \
			elem = (char **)apr_array_push(addlist); \
			*elem = ptr[itr]; \
		} \
	} \
	child = apr_array_make(p,1,sizeof(char *)); \
	ptr = (char **)(parent->elts); \
	if (overwrite==0) { \
		/* if we are not overwriting the existing then prepare for merge */ \
		for (itr=0; itr<parent->nelts; itr++) { \
			if (!in_array(addlist, ptr[itr]) && !in_array(dellist,ptr[itr])) { \
				elem = apr_array_push(child); \
				*elem = apr_pstrdup(p, ptr[itr]); \
			} \
		} \
	} \
	apr_array_cat(child, addlist); \
}

static void *log_sql_merge_state(apr_pool_t *p, void *basev, void *addv)
{
	/* Fetch the two states to merge */
	logsql_state *parent = (logsql_state *) basev;
	logsql_state *child = (logsql_state *) addv;

	apr_pool_t *subp;

	apr_pool_create(&subp,p);

	/* Child can override these, otherwise they default to parent's choice.
	 * If the parent didn't set them, create reasonable defaults for the
	 * ones that should have such default settings.  Leave the others null. */

	/* No default for transfer_table_name because we want its absence
	 * to disable logging. */
	if (!child->transfer_table_name) {
		child->transfer_table_name = parent->transfer_table_name;
	}

	if (child->transfer_log_format == DEFAULT_TRANSFER_LOG_FMT) {
		child->transfer_log_format = parent->transfer_log_format;
		/*apr_pool_clear(child->parsed_pool);*/
		child->parsed_log_format = apr_pcalloc(child->parsed_pool,
			strlen(child->transfer_log_format) * sizeof(logsql_item *));
	}

	if (child->preserve_file == DEFAULT_PRESERVE_FILE)
		child->preserve_file = parent->preserve_file;
	/* server_root_relative the preserve file location */
	if (child->preserve_file == DEFAULT_PRESERVE_FILE)
        child->preserve_file = ap_server_root_relative(p, DEFAULT_PRESERVE_FILE);
 
	if (child->notes_table_name == DEFAULT_NOTES_TABLE_NAME)
		child->notes_table_name = parent->notes_table_name;

	if (child->hin_table_name == DEFAULT_HIN_TABLE_NAME)
		child->hin_table_name = parent->hin_table_name;

	if (child->hout_table_name == DEFAULT_HOUT_TABLE_NAME)
		child->hout_table_name = parent->hout_table_name;

	if (child->cookie_table_name == DEFAULT_COOKIE_TABLE_NAME)
		child->cookie_table_name = parent->cookie_table_name;

	DO_MERGE_ARRAY(parent->transfer_ignore_list, child->transfer_ignore_list, subp);
	DO_MERGE_ARRAY(parent->transfer_accept_list, child->transfer_accept_list, subp);
	DO_MERGE_ARRAY(parent->remhost_ignore_list, child->remhost_ignore_list, subp);
	DO_MERGE_ARRAY(parent->notes_list, child->notes_list, subp);
	DO_MERGE_ARRAY(parent->hin_list, child->hin_list, subp);
	DO_MERGE_ARRAY(parent->hout_list, child->hout_list, subp);
	DO_MERGE_ARRAY(parent->cookie_list,child->cookie_list, subp);

	apr_pool_destroy(subp);

	if (!child->cookie_name)
		child->cookie_name = parent->cookie_name;


	return (void*) child;
}

/* Routine to perform the actual construction and execution of the relevant
 * INSERT statements.
 */
static int log_sql_transaction(request_rec *orig)
{
	char **ptrptr, **ptrptr2;
	logsql_state *cls = ap_get_module_config(orig->server->module_config, &log_sql_module);
	const char *access_query;
	request_rec *r;
	const char *transfer_tablename = cls->transfer_table_name;
	const char *notes_tablename = cls->notes_table_name;
	const char *hout_tablename = cls->hout_table_name;
	const char *hin_tablename = cls->hin_table_name;
	const char *cookie_tablename = cls->cookie_table_name;

	/* We handle mass virtual hosting differently.  Dynamically determine the name
	 * of the table from the virtual server's name, and flag it for creation.
	 */
	if (global_config.massvirtual) {
		/* TODO: Make these configurable? */
		char *access_base = "access_";
		char *notes_base  = "notes_";
		char *hout_base   = "headout_";
		char *hin_base    = "headin_";
		char *cookie_base = "cookies_";


		/* Determint the hostname and convert it to all lower-case; */
		char *servername = apr_pstrdup(orig->pool,(char *)ap_get_server_name(orig));
		char *p=servername;
		while (*p) {
			*p = apr_tolower(*p);
			if (*p == '.') *p = '_';
			++p;
		}
		
		/* Find memory long enough to hold the table name + \0. */
		transfer_tablename = apr_pstrcat(orig->pool, access_base, servername, NULL);
		notes_tablename = apr_pstrcat(orig->pool, notes_base,  servername, NULL);
		hin_tablename = apr_pstrcat(orig->pool, hin_base,    servername, NULL);
		hout_tablename = apr_pstrcat(orig->pool, hout_base,   servername, NULL);
		cookie_tablename = apr_pstrcat(orig->pool, cookie_base, servername, NULL);

		/* Tell this virtual server its transfer table name, and
		 * turn on create_tables, which is implied by massvirtual.
		 */
		
		global_config.createtables = 1;
	}

	/* Do we have enough info to log? */
	if (!transfer_tablename) {
		return DECLINED;
	} else {
		const char *thehost;
		const char *theitem;
		char *fields = "", *values = "";
		char *itemsets = "";
		char *note_query = NULL;
		char *hin_query = NULL;
		char *hout_query = NULL;
		char *cookie_query = NULL;
		const char *unique_id;
		const char *formatted_item;
		int i,length;
		int proceed;

		for (r = orig; r->next; r = r->next) {
			continue;
		}

		/* The following is a stolen upsetting mess of pointers, I'm sorry.
		 * Anyone with the motiviation and/or the time should feel free
		 * to make this cleaner. :) */
		ptrptr2 = (char **) (cls->transfer_accept_list->elts + (cls->transfer_accept_list->nelts * cls->transfer_accept_list->elt_size));

		/* Go through each element of the accept list and compare it to the
		 * request_uri.  If we don't get a match, return without logging */
		if ((r->uri) && (cls->transfer_accept_list->nelts)) {
			proceed = 0;
			for (ptrptr = (char **) cls->transfer_accept_list->elts; ptrptr < ptrptr2; ptrptr = (char **) ((char *) ptrptr + cls->transfer_accept_list->elt_size))
				if (ap_strstr(r->uri, *ptrptr)) {
					proceed = 1;
					break;
				}
			if (!proceed)
				return OK;
		}

		/* Go through each element of the ignore list and compare it to the
		 * request_uri.  If we get a match, return without logging */
		ptrptr2 = (char **) (cls->transfer_ignore_list->elts + (cls->transfer_ignore_list->nelts * cls->transfer_ignore_list->elt_size));
		if (r->uri) {
			for (ptrptr = (char **) cls->transfer_ignore_list->elts; ptrptr < ptrptr2; ptrptr = (char **) ((char *) ptrptr + cls->transfer_ignore_list->elt_size))
				if (ap_strstr(r->uri, *ptrptr)) {
					return OK;
				}
		}

		/* Go through each element of the ignore list and compare it to the
		 * remote host.  If we get a match, return without logging */
		ptrptr2 = (char **) (cls->remhost_ignore_list->elts + (cls->remhost_ignore_list->nelts * cls->remhost_ignore_list->elt_size));
		thehost = ap_get_remote_host(r->connection, r->per_dir_config, REMOTE_NAME, NULL);
		if (thehost) {
			for (ptrptr = (char **) cls->remhost_ignore_list->elts; ptrptr < ptrptr2; ptrptr = (char **) ((char *) ptrptr + cls->remhost_ignore_list->elt_size))
				if (ap_strstr(thehost, *ptrptr)) {
					return OK;
				}
		}


		/* Iterate through the format characters and set up the INSERT string according to
		 * what the user has configured. */
		length = strlen(cls->transfer_log_format);
		for (i = 0; i<length; i++) {
			logsql_item *item = cls->parsed_log_format[i];
			if (item==NULL) {
				log_error(APLOG_MARK, APLOG_ERR, 0, orig->server,
					"Log Format '%c' unknown",cls->transfer_log_format[i]);
				continue;
			}

			/* Yes, this key is one of the configured keys.
			 * Call the key's function and put the returned value into 'formatted_item' */
			formatted_item = item->func(item->want_orig_default ? orig : r, "");

			/* Massage 'formatted_item' for proper SQL eligibility... */
			if (!formatted_item) {
				formatted_item = "";
			} else if (formatted_item[0] == '-' && formatted_item[1] == '\0' && !item->string_contents) {
				/* If apache tried to log a '-' character for a numeric field, convert that to a zero
				 * because the database expects a numeral and will reject the '-' character. */
				formatted_item = "0";
			}

		     /* Append the fieldname and value-to-insert to the appropriate strings, quoting stringvals with ' as appropriate */
			fields = apr_pstrcat(r->pool, fields, (i ? "," : ""),
						 item->sql_field_name, NULL);
			values = apr_pstrcat(r->pool, values, (i ? "," : ""),
						 (item->string_contents ? "'" : ""),
					     global_config.driver->escape(formatted_item, r->pool,&global_config.db),
						 (item->string_contents ? "'" : ""), NULL);
		}

		/* Work through the list of notes defined by LogSQLWhichNotes */
		i = 0;
		unique_id = extract_unique_id(r, "");

		ptrptr2 = (char **) (cls->notes_list->elts + (cls->notes_list->nelts * cls->notes_list->elt_size));
		for (ptrptr = (char **) cls->notes_list->elts; ptrptr < ptrptr2; ptrptr = (char **) ((char *) ptrptr + cls->notes_list->elt_size)) {
			/* If the specified note (*ptrptr) exists for the current request... */
		    if ((theitem = apr_table_get(r->notes, *ptrptr))) {
				itemsets = apr_pstrcat(r->pool, itemsets,
									  (i > 0 ? "," : ""),
									  "('",
									  unique_id,
									  "','",
									  global_config.driver->escape(*ptrptr, r->pool,&global_config.db),
									  "','",
									  global_config.driver->escape(theitem, r->pool,&global_config.db),
									  "')",
									  NULL);
				i++;
			}
		}
		if ( itemsets != "" ) {
			note_query = apr_psprintf(r->pool, "insert %s into `%s` (id, item, val) values %s",
				/*global_config.insertdelayed?"delayed":*/"", notes_tablename, itemsets);

			log_error(APLOG_MARK,APLOG_DEBUG,0, orig->server,"mod_log_sql: note string: %s", note_query);
		}

		/* Work through the list of headers-out defined by LogSQLWhichHeadersOut*/
		i = 0;
		itemsets = "";

		ptrptr2 = (char **) (cls->hout_list->elts + (cls->hout_list->nelts * cls->hout_list->elt_size));
		for (ptrptr = (char **) cls->hout_list->elts; ptrptr < ptrptr2; ptrptr = (char **) ((char *) ptrptr + cls->hout_list->elt_size)) {
			/* If the specified header (*ptrptr) exists for the current request... */
		    if ((theitem = apr_table_get(r->headers_out, *ptrptr))) {
				itemsets = apr_pstrcat(r->pool, itemsets,
									  (i > 0 ? "," : ""),
									  "('",
									  unique_id,
									  "','",
									  global_config.driver->escape(*ptrptr, r->pool,&global_config.db),
									  "','",
									  global_config.driver->escape(theitem, r->pool,&global_config.db),
									  "')",
									  NULL);
				i++;
			}
		}
		if ( itemsets != "" ) {
			hout_query = apr_psprintf(r->pool, "insert %s into `%s` (id, item, val) values %s",
				/*global_config.insertdelayed?"delayed":*/"", hout_tablename, itemsets);

			log_error(APLOG_MARK,APLOG_DEBUG,0, orig->server,"mod_log_sql: header_out string: %s", hout_query);
		}


		/* Work through the list of headers-in defined by LogSQLWhichHeadersIn */
		i = 0;
		itemsets = "";

		ptrptr2 = (char **) (cls->hin_list->elts + (cls->hin_list->nelts * cls->hin_list->elt_size));
		for (ptrptr = (char **) cls->hin_list->elts; ptrptr < ptrptr2; ptrptr = (char **) ((char *) ptrptr + cls->hin_list->elt_size)) {
			/* If the specified header (*ptrptr) exists for the current request... */
		    if ((theitem = apr_table_get(r->headers_in, *ptrptr))) {
				itemsets = apr_pstrcat(r->pool, itemsets,
									  (i > 0 ? "," : ""),
									  "('",
									  unique_id,
									  "','",
									  global_config.driver->escape(*ptrptr, r->pool,&global_config.db),
									  "','",
									  global_config.driver->escape(theitem, r->pool,&global_config.db),
									  "')",
									  NULL);
				i++;
			}
		}
		if ( itemsets != "" ) {
			hin_query = apr_psprintf(r->pool, "insert %s into `%s` (id, item, val) values %s",
				/*global_config.insertdelayed?"delayed":*/"", hin_tablename, itemsets);

			log_error(APLOG_MARK,APLOG_DEBUG,0, orig->server,"mod_log_sql: header_in string: %s", hin_query);
		}


		/* Work through the list of cookies defined by LogSQLWhichCookies */
		i = 0;
		itemsets = "";

		ptrptr2 = (char **) (cls->cookie_list->elts + (cls->cookie_list->nelts * cls->cookie_list->elt_size));
		for (ptrptr = (char **) cls->cookie_list->elts; ptrptr < ptrptr2; ptrptr = (char **) ((char *) ptrptr + cls->cookie_list->elt_size)) {
			/* If the specified cookie (*ptrptr) exists for the current request... */
		    if ( strncmp((theitem = extract_specific_cookie(r, *ptrptr)), "-", 1) ) {
				itemsets = apr_pstrcat(r->pool, itemsets,
									  (i > 0 ? "," : ""),
									  "('",
									  unique_id,
									  "','",
									  global_config.driver->escape(*ptrptr, r->pool,&global_config.db),
									  "','",
									  global_config.driver->escape(theitem, r->pool,&global_config.db),
									  "')",
									  NULL);
				i++;
			}

		}
		if ( itemsets != "" ) {
			cookie_query = apr_psprintf(r->pool, "insert %s into `%s` (id, item, val) values %s",
				/*global_config.insertdelayed?"delayed":*/"", cookie_tablename, itemsets);

			log_error(APLOG_MARK,APLOG_DEBUG,0, orig->server,"mod_log_sql: cookie string: %s", cookie_query);
		}


		/* Set up the actual INSERT statement */
		access_query = apr_psprintf(r->pool, "insert %s into `%s` (%s) values (%s)",
			/*global_config.insertdelayed?"delayed":*/"", transfer_tablename, fields, values);

        log_error(APLOG_MARK,APLOG_DEBUG,0, r->server,"mod_log_sql: access string: %s", access_query);

		/* If the person activated force-preserve, go ahead and push all the entries
		 * into the preserve file, then return.
		 */
		if (global_config.forcepreserve) {
			log_error(APLOG_MARK,APLOG_DEBUG,0, orig->server,"mod_log_sql: preservation forced");
			preserve_entry(orig, access_query);
			if ( note_query != NULL )
				preserve_entry(orig, note_query);
			if ( hin_query != NULL )
			  	preserve_entry(orig, hin_query);
			if ( hout_query != NULL )
			  	preserve_entry(orig, hout_query);
			if ( cookie_query != NULL )
			  	preserve_entry(orig, cookie_query);
			return OK;
		}

		/* How's our mysql link integrity? */
		if (!global_config.db.connected) {

			/* Make a try to establish the link */
			log_sql_opendb_link(r->server);

			if (!global_config.db.connected) {
				/* Unable to re-establish a DB link, so assume that it's really
				 * gone and send the entry to the preserve file instead.
				 * This short-circuits safe_sql_query() during a db outage and therefore
				 * we don't keep logging the db error over and over.
				 */
				preserve_entry(orig, access_query);
				if ( note_query != NULL )
					preserve_entry(orig, note_query);
				if ( hin_query != NULL )
				  	preserve_entry(orig, hin_query);
				if ( hout_query != NULL )
				  	preserve_entry(orig, hout_query);
				if ( cookie_query != NULL )
				  	preserve_entry(orig, cookie_query);

				return OK;
			} else {
				/* Whew, we got the DB link back */
				log_error(APLOG_MARK,APLOG_NOTICE,0, orig->server,"mod_log_sql: child established database connection");
			}
		}


		/* ---> So as of here we have a non-null value of mysql_log. <--- */
		/* ---> i.e. we have a good MySQL connection.                <--- */

  	    /* Make the access-table insert */
		safe_sql_insert(orig,LOGSQL_TABLE_ACCESS,transfer_tablename,access_query);

		/* Log the optional notes, headers, etc. */
		if (note_query)
			safe_sql_insert(orig, LOGSQL_TABLE_NOTES,notes_tablename,note_query);

		if (hout_query)
		  	safe_sql_insert(orig, LOGSQL_TABLE_HEADERSOUT,hout_tablename,hout_query);

		if (hin_query)
		  	safe_sql_insert(orig, LOGSQL_TABLE_HEADERSIN,hin_tablename,hin_query);

		if (cookie_query)
		  	safe_sql_insert(orig, LOGSQL_TABLE_COOKIES,cookie_tablename,cookie_query);

		return OK;
	}
}


/* Setup of the available httpd.conf configuration commands.
 * Structure: command, function called, NULL, where available, how many arguments, verbose description
 */
static const command_rec log_sql_cmds[] = {
	AP_INIT_FLAG("LogSQLAnnounce", set_global_flag_slot,
	 (void *)APR_OFFSETOF(global_config_t, announce), RSRC_CONF,
	 "Whether to announce that mod_log_sql is loaded in the server header")
	,
	/* DB connection parameters */
	AP_INIT_TAKE13("LogSQLLoginInfo", set_log_sql_info, NULL, RSRC_CONF,
	 "The database connection URI in the form &quot;driver://user:password@hostname:port/database&quot;")
	,
	AP_INIT_TAKE2("LogSQLDBParam", set_dbparam, NULL, RSRC_CONF,
	 "First argument is the DB parameter, second is the value to assign")
	,
	AP_INIT_FLAG("LogSQLForcePreserve", set_global_flag_slot,
	 (void *)APR_OFFSETOF(global_config_t, forcepreserve), RSRC_CONF,
	 "Forces logging to preserve file and bypasses database")
	,
	AP_INIT_FLAG("LogSQLDisablePreserve", set_global_flag_slot,
	 (void *)APR_OFFSETOF(global_config_t, disablepreserve), RSRC_CONF,
	 "Completely disables use of the preserve file")
	,
	AP_INIT_TAKE1("LogSQLPreserveFile", set_server_file_slot,
	 (void *)APR_OFFSETOF(logsql_state,preserve_file), RSRC_CONF,
	 "Name of the file to use for data preservation during database downtime")
	,
	AP_INIT_FLAG("LogSQLCreateTables", set_global_nmv_flag_slot, 
	 (void *)APR_OFFSETOF(global_config_t, createtables), RSRC_CONF,
	 "Turn on module's capability to create its SQL tables on the fly")
	,
	/* Table names */
	AP_INIT_FLAG("LogSQLMassVirtualHosting", set_global_flag_slot,
	 (void *)APR_OFFSETOF(global_config_t, massvirtual), RSRC_CONF,
	 "Activates option(s) useful for ISPs performing mass virutal hosting")
	,
	AP_INIT_TAKE1("LogSQLTransferLogTable", set_server_nmv_string_slot,
	 (void *)APR_OFFSETOF(logsql_state, transfer_table_name), RSRC_CONF, 
	 "The database table that holds the transfer log")
	,
	AP_INIT_TAKE1("LogSQLNotesLogTable", set_server_nmv_string_slot,
	 (void *)APR_OFFSETOF(logsql_state, notes_table_name), RSRC_CONF,
	 "The database table that holds the notes")
	,
	AP_INIT_TAKE1("LogSQLHeadersOutLogTable", set_server_nmv_string_slot,
	 (void *)APR_OFFSETOF(logsql_state, hout_table_name), RSRC_CONF,
	 "The database table that holds the outbound headers")
	,
	AP_INIT_TAKE1("LogSQLHeadersInLogTable", set_server_nmv_string_slot,
	 (void *)APR_OFFSETOF(logsql_state, hin_table_name), RSRC_CONF,
	 "The database table that holds the inbound headers")
	,
	AP_INIT_TAKE1("LogSQLCookieLogTable", set_server_nmv_string_slot,
	 (void *)APR_OFFSETOF(logsql_state, cookie_table_name), RSRC_CONF,
	 "The database table that holds the cookie info")
	,
	/* Log format */
	AP_INIT_TAKE1("LogSQLTransferLogFormat", set_logformat_slot,
	 NULL, RSRC_CONF,
	 "Instruct the module what information to log to the database transfer log")
	,
	/* Machine ID */
	AP_INIT_TAKE1("LogSQLMachineID", set_global_string_slot,
	 (void *)APR_OFFSETOF(global_config_t, machid), RSRC_CONF,
	 "Machine ID that the module will log, useful in web clusters to differentiate machines")
	,
	/* Limits on logging */
	AP_INIT_ITERATE("LogSQLRequestAccept", add_server_string_slot,
	 (void *)APR_OFFSETOF(logsql_state, transfer_accept_list), RSRC_CONF,
	 "List of URIs to accept for logging. Accesses that don't match will not be logged")
	,
	AP_INIT_ITERATE("LogSQLRequestIgnore", add_server_string_slot,
	 (void *)APR_OFFSETOF(logsql_state, transfer_ignore_list), RSRC_CONF,
	 "List of URIs to ignore. Accesses that match will not be logged to database")
	,
	AP_INIT_ITERATE("LogSQLRemhostIgnore", add_server_string_slot,
	 (void *)APR_OFFSETOF(logsql_state, remhost_ignore_list), RSRC_CONF,
	 "List of remote hosts to ignore. Accesses that match will not be logged to database")
	,
	/* Special loggin table configuration */
	AP_INIT_TAKE1("LogSQLWhichCookie", set_server_string_slot, 
	 (void *)APR_OFFSETOF(logsql_state, cookie_name), RSRC_CONF,
	 "The single cookie that you want logged in the access_log when using the 'c' config directive")
	,
	AP_INIT_ITERATE("LogSQLWhichNotes", add_server_string_slot,
	 (void *)APR_OFFSETOF(logsql_state, notes_list), RSRC_CONF,
	 "Notes that you would like to log in a separate table")
	,
	AP_INIT_ITERATE("LogSQLWhichHeadersOut", add_server_string_slot,
	 (void *)APR_OFFSETOF(logsql_state, hout_list), RSRC_CONF,
	 "Outbound headers that you would like to log in a separate table")
	,
	AP_INIT_ITERATE("LogSQLWhichHeadersIn", add_server_string_slot,
	 (void *)APR_OFFSETOF(logsql_state, hin_list), RSRC_CONF,
	 "Inbound headers that you would like to log in a separate table")
	,
	AP_INIT_ITERATE("LogSQLWhichCookies", add_server_string_slot,
	 (void *)APR_OFFSETOF(logsql_state, cookie_list), RSRC_CONF,
	 "The cookie(s) that you would like to log in a separate table")
	,
	AP_INIT_RAW_ARGS("LogSQLDeprecated", ap_set_deprecated, NULL, RSRC_CONF,
	 "<br><b>Deprecated</b><br>The following Commands are deprecated and should not be used.. <br>Read the documentation for more information<br><b>Deprecated</b>")
	,
	/* Deprecated commands */
	AP_INIT_TAKE1("LogSQLDatabase", set_dbparam_slot, 
	 (void *)"database", RSRC_CONF,
	 "<b>(Deprecated) Use LogSQLDBParam database dbname.</b> The name of the database database for logging")
	,
	AP_INIT_TAKE1("LogSQLTableType", set_dbparam_slot,
	 (void *)"tabletype", RSRC_CONF,
	 "<b>(Deprecated) Use LogSQLDBParam tabletype type.</b> What kind of table to create (MyISAM, InnoDB,...) when creating tables")
	,
	AP_INIT_TAKE1("LogSQLSocketFile", set_dbparam_slot,
	 (void *)"socketfile", RSRC_CONF,
	 "<b>(Deprecated) Use LogSQLDBParam socketfile socket.</b> Name of the file to employ for socket connections to database")
	,
	AP_INIT_TAKE1("LogSQLTCPPort", set_dbparam_slot, 
	 (void *)"port", RSRC_CONF,
	 "<b>(Deprecated) Use LogSQLDBParam port port.</b> Port number to use for TCP connections to database, defaults to 3306 if not set")
	,
	{NULL}
};
/* The configuration array that sets up the hooks into the module. */
#if defined(WITH_APACHE20)
static void register_hooks(apr_pool_t *p) {
	ap_hook_post_config(log_sql_post_config, NULL, NULL, APR_HOOK_REALLY_FIRST);
	ap_hook_child_init(log_sql_child_init, NULL, NULL, APR_HOOK_MIDDLE);
	ap_hook_log_transaction(log_sql_transaction, NULL, NULL, APR_HOOK_MIDDLE);
}

module AP_MODULE_DECLARE_DATA log_sql_module = {
	STANDARD20_MODULE_STUFF,
	NULL,		/* create per-directory config structures */
    NULL,		/* merge per-directory config structures */
    log_sql_make_state,		/* create per-server config structures */
    log_sql_merge_state,		/* merge per-server config structures     */
    log_sql_cmds,	/* command handlers */
    register_hooks	/* register hooks */
};
#elif defined(WITH_APACHE13)
module MODULE_VAR_EXPORT log_sql_module = {
	STANDARD_MODULE_STUFF,
	log_sql_module_init,	 /* module initializer 				*/
	NULL,					 /* create per-dir config 			*/
	NULL,					 /* merge per-dir config 			*/
	log_sql_make_state,		 /* create server config 			*/
	log_sql_merge_state,	 /* merge server config 			*/
	log_sql_cmds,			 /* config directive table 			*/
	NULL,					 /* [9] content handlers 			*/
	NULL,					 /* [2] URI-to-filename translation */
	NULL,					 /* [5] check/validate user_id 		*/
	NULL,					 /* [6] check authorization 		*/
	NULL,					 /* [4] check access by host		*/
	NULL,					 /* [7] MIME type checker/setter 	*/
	NULL,					 /* [8] fixups 						*/
	log_sql_transaction,	 /* [10] logger 					*/
	NULL					 /* [3] header parser 				*/
#if MODULE_MAGIC_NUMBER >= 19970728 /* 1.3-dev or later support these additionals... */
	,log_sql_child_init,   /* child process initializer 		*/
	log_sql_child_exit,    /* process exit/cleanup 			*/
	NULL					 /* [1] post read-request 			*/
#endif

};
#endif