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
|
/*
+----------------------------------------------------------------------+
| PHP Version 5 |
+----------------------------------------------------------------------+
| Copyright (c) 1997-2009 The PHP Group |
+----------------------------------------------------------------------+
| This source file is subject to version 3.01 of the PHP license, |
| that is bundled with this package in the file LICENSE, and is |
| available through the world-wide-web at the following url: |
| http://www.php.net/license/3_01.txt |
| If you did not receive a copy of the PHP license and are unable to |
| obtain it through the world-wide-web, please send a note to |
| license@php.net so we can mail you a copy immediately. |
+----------------------------------------------------------------------+
| Author: Wez Furlong <wez@php.net> |
+----------------------------------------------------------------------+
*/
/* $Id: pdo_sqlite2.c 272370 2008-12-31 11:15:49Z sebastian $ */
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "php.h"
#ifdef PHP_SQLITE2_HAVE_PDO
#include "sqlite.h"
#include "pdo/php_pdo.h"
#include "pdo/php_pdo_driver.h"
#include "zend_exceptions.h"
#define php_sqlite_encode_binary(in, n, out) sqlite_encode_binary((const unsigned char *)in, n, (unsigned char *)out)
#define php_sqlite_decode_binary(in, out) sqlite_decode_binary((const unsigned char *)in, (unsigned char *)out)
typedef struct {
const char *file;
int line;
unsigned int errcode;
char *errmsg;
} pdo_sqlite2_error_info;
typedef struct {
sqlite *db;
pdo_sqlite2_error_info einfo;
} pdo_sqlite2_db_handle;
typedef struct {
pdo_sqlite2_db_handle *H;
sqlite_vm *vm;
const char **rowdata, **colnames;
int ncols;
unsigned pre_fetched:1;
unsigned done:1;
pdo_sqlite2_error_info einfo;
} pdo_sqlite2_stmt;
extern int _pdo_sqlite2_error(pdo_dbh_t *dbh, pdo_stmt_t *stmt, char *errmsg, const char *file, int line TSRMLS_DC);
#define pdo_sqlite2_error(msg, s) _pdo_sqlite2_error(s, NULL, msg, __FILE__, __LINE__ TSRMLS_CC)
#define pdo_sqlite2_error_stmt(msg, s) _pdo_sqlite2_error(stmt->dbh, stmt, msg, __FILE__, __LINE__ TSRMLS_CC)
extern struct pdo_stmt_methods sqlite2_stmt_methods;
static int pdo_sqlite2_stmt_dtor(pdo_stmt_t *stmt TSRMLS_DC)
{
pdo_sqlite2_stmt *S = (pdo_sqlite2_stmt*)stmt->driver_data;
if (S->vm) {
char *errmsg = NULL;
sqlite_finalize(S->vm, &errmsg);
if (errmsg) {
sqlite_freemem(errmsg);
}
S->vm = NULL;
}
if (S->einfo.errmsg) {
pefree(S->einfo.errmsg, stmt->dbh->is_persistent);
}
efree(S);
return 1;
}
static int pdo_sqlite2_stmt_execute(pdo_stmt_t *stmt TSRMLS_DC)
{
pdo_sqlite2_stmt *S = (pdo_sqlite2_stmt*)stmt->driver_data;
char *errmsg = NULL;
const char *tail;
if (stmt->executed && !S->done) {
sqlite_finalize(S->vm, &errmsg);
pdo_sqlite2_error_stmt(errmsg, stmt);
errmsg = NULL;
S->vm = NULL;
}
S->einfo.errcode = sqlite_compile(S->H->db, stmt->active_query_string, &tail, &S->vm, &errmsg);
if (S->einfo.errcode != SQLITE_OK) {
pdo_sqlite2_error_stmt(errmsg, stmt);
return 0;
}
S->done = 0;
S->einfo.errcode = sqlite_step(S->vm, &S->ncols, &S->rowdata, &S->colnames);
switch (S->einfo.errcode) {
case SQLITE_ROW:
S->pre_fetched = 1;
stmt->column_count = S->ncols;
return 1;
case SQLITE_DONE:
stmt->column_count = S->ncols;
stmt->row_count = sqlite_changes(S->H->db);
S->einfo.errcode = sqlite_reset(S->vm, &errmsg);
if (S->einfo.errcode != SQLITE_OK) {
pdo_sqlite2_error_stmt(errmsg, stmt);
}
S->done = 1;
return 1;
case SQLITE_ERROR:
case SQLITE_MISUSE:
case SQLITE_BUSY:
default:
pdo_sqlite2_error_stmt(errmsg, stmt);
return 0;
}
}
static int pdo_sqlite2_stmt_param_hook(pdo_stmt_t *stmt, struct pdo_bound_param_data *param,
enum pdo_param_event event_type TSRMLS_DC)
{
return 1;
}
static int pdo_sqlite2_stmt_fetch(pdo_stmt_t *stmt,
enum pdo_fetch_orientation ori, long offset TSRMLS_DC)
{
pdo_sqlite2_stmt *S = (pdo_sqlite2_stmt*)stmt->driver_data;
char *errmsg = NULL;
if (!S->vm) {
return 0;
}
if (S->pre_fetched) {
S->pre_fetched = 0;
return 1;
}
if (S->done) {
return 0;
}
S->einfo.errcode = sqlite_step(S->vm, &S->ncols, &S->rowdata, &S->colnames);
switch (S->einfo.errcode) {
case SQLITE_ROW:
return 1;
case SQLITE_DONE:
S->done = 1;
S->einfo.errcode = sqlite_reset(S->vm, &errmsg);
if (S->einfo.errcode != SQLITE_OK) {
pdo_sqlite2_error_stmt(errmsg, stmt);
errmsg = NULL;
}
return 0;
default:
pdo_sqlite2_error_stmt(errmsg, stmt);
return 0;
}
}
static int pdo_sqlite2_stmt_describe(pdo_stmt_t *stmt, int colno TSRMLS_DC)
{
pdo_sqlite2_stmt *S = (pdo_sqlite2_stmt*)stmt->driver_data;
if(colno >= S->ncols) {
/* error invalid column */
pdo_sqlite2_error_stmt(NULL, stmt);
return 0;
}
stmt->columns[colno].name = estrdup(S->colnames[colno]);
stmt->columns[colno].namelen = strlen(stmt->columns[colno].name);
stmt->columns[colno].maxlen = 0xffffffff;
stmt->columns[colno].precision = 0;
stmt->columns[colno].param_type = PDO_PARAM_STR;
return 1;
}
static int pdo_sqlite2_stmt_get_col(pdo_stmt_t *stmt, int colno, char **ptr, unsigned long *len, int *caller_frees TSRMLS_DC)
{
pdo_sqlite2_stmt *S = (pdo_sqlite2_stmt*)stmt->driver_data;
if (!S->vm) {
return 0;
}
if(colno >= S->ncols) {
/* error invalid column */
pdo_sqlite2_error_stmt(NULL, stmt);
return 0;
}
if (S->rowdata[colno]) {
if (S->rowdata[colno][0] == '\x01') {
/* encoded */
*caller_frees = 1;
*ptr = emalloc(strlen(S->rowdata[colno]));
*len = php_sqlite_decode_binary(S->rowdata[colno]+1, *ptr);
(*(char**)ptr)[*len] = '\0';
} else {
*ptr = (char*)S->rowdata[colno];
*len = strlen(*ptr);
}
} else {
*ptr = NULL;
*len = 0;
}
return 1;
}
struct pdo_stmt_methods sqlite2_stmt_methods = {
pdo_sqlite2_stmt_dtor,
pdo_sqlite2_stmt_execute,
pdo_sqlite2_stmt_fetch,
pdo_sqlite2_stmt_describe,
pdo_sqlite2_stmt_get_col,
pdo_sqlite2_stmt_param_hook,
NULL, /* set_attr */
NULL, /* get_attr */
NULL
};
int _pdo_sqlite2_error(pdo_dbh_t *dbh, pdo_stmt_t *stmt, char *errmsg, const char *file, int line TSRMLS_DC) /* {{{ */
{
pdo_sqlite2_db_handle *H = (pdo_sqlite2_db_handle *)dbh->driver_data;
pdo_error_type *pdo_err = stmt ? &stmt->error_code : &dbh->error_code;
pdo_sqlite2_error_info *einfo = &H->einfo;
pdo_sqlite2_stmt *S;
if (stmt) {
S = stmt->driver_data;
einfo = &S->einfo;
}
einfo->file = file;
einfo->line = line;
if (einfo->errmsg) {
pefree(einfo->errmsg, dbh->is_persistent);
einfo->errmsg = NULL;
}
if (einfo->errcode != SQLITE_OK) {
if (errmsg) {
einfo->errmsg = pestrdup(errmsg, dbh->is_persistent);
sqlite_freemem(errmsg);
} else {
einfo->errmsg = pestrdup(sqlite_error_string(einfo->errcode), dbh->is_persistent);
}
} else { /* no error */
strcpy(*pdo_err, PDO_ERR_NONE);
return 0;
}
switch (einfo->errcode) {
case SQLITE_NOTFOUND:
strcpy(*pdo_err, "42S02");
break;
case SQLITE_INTERRUPT:
strcpy(*pdo_err, "01002");
break;
case SQLITE_NOLFS:
strcpy(*pdo_err, "HYC00");
break;
case SQLITE_TOOBIG:
strcpy(*pdo_err, "22001");
break;
case SQLITE_CONSTRAINT:
strcpy(*pdo_err, "23000");
break;
case SQLITE_ERROR:
default:
strcpy(*pdo_err, "HY000");
break;
}
if (!dbh->methods) {
zend_throw_exception_ex(php_pdo_get_exception(), 0 TSRMLS_CC, "SQLSTATE[%s] [%d] %s",
*pdo_err, einfo->errcode, einfo->errmsg);
}
return einfo->errcode;
}
/* }}} */
static int pdo_sqlite2_fetch_error_func(pdo_dbh_t *dbh, pdo_stmt_t *stmt, zval *info TSRMLS_DC)
{
pdo_sqlite2_db_handle *H = (pdo_sqlite2_db_handle *)dbh->driver_data;
pdo_sqlite2_error_info *einfo = &H->einfo;
pdo_sqlite2_stmt *S;
if (stmt) {
S = stmt->driver_data;
einfo = &S->einfo;
}
if (einfo->errcode) {
add_next_index_long(info, einfo->errcode);
if (einfo->errmsg) {
add_next_index_string(info, einfo->errmsg, 1);
}
}
return 1;
}
static int sqlite2_handle_closer(pdo_dbh_t *dbh TSRMLS_DC) /* {{{ */
{
pdo_sqlite2_db_handle *H = (pdo_sqlite2_db_handle *)dbh->driver_data;
if (H) {
if (H->db) {
sqlite_close(H->db);
H->db = NULL;
}
if (H->einfo.errmsg) {
pefree(H->einfo.errmsg, dbh->is_persistent);
H->einfo.errmsg = NULL;
}
pefree(H, dbh->is_persistent);
dbh->driver_data = NULL;
}
return 0;
}
/* }}} */
static int sqlite2_handle_preparer(pdo_dbh_t *dbh, const char *sql, long sql_len, pdo_stmt_t *stmt, zval *driver_options TSRMLS_DC)
{
pdo_sqlite2_db_handle *H = (pdo_sqlite2_db_handle *)dbh->driver_data;
pdo_sqlite2_stmt *S = ecalloc(1, sizeof(pdo_sqlite2_stmt));
S->H = H;
stmt->driver_data = S;
stmt->methods = &sqlite2_stmt_methods;
stmt->supports_placeholders = PDO_PLACEHOLDER_NONE;
if (PDO_CURSOR_FWDONLY != pdo_attr_lval(driver_options, PDO_ATTR_CURSOR, PDO_CURSOR_FWDONLY TSRMLS_CC)) {
H->einfo.errcode = SQLITE_ERROR;
pdo_sqlite2_error(NULL, dbh);
return 0;
}
return 1;
}
static long sqlite2_handle_doer(pdo_dbh_t *dbh, const char *sql, long sql_len TSRMLS_DC)
{
pdo_sqlite2_db_handle *H = (pdo_sqlite2_db_handle *)dbh->driver_data;
char *errmsg = NULL;
if ((H->einfo.errcode = sqlite_exec(H->db, sql, NULL, NULL, &errmsg)) != SQLITE_OK) {
pdo_sqlite2_error(errmsg, dbh);
return -1;
} else {
return sqlite_changes(H->db);
}
}
static char *pdo_sqlite2_last_insert_id(pdo_dbh_t *dbh, const char *name, unsigned int *len TSRMLS_DC)
{
pdo_sqlite2_db_handle *H = (pdo_sqlite2_db_handle *)dbh->driver_data;
char *id;
id = php_pdo_int64_to_str(sqlite_last_insert_rowid(H->db) TSRMLS_CC);
*len = strlen(id);
return id;
}
static int sqlite2_handle_quoter(pdo_dbh_t *dbh, const char *unquoted, int unquotedlen, char **quoted, int *quotedlen, enum pdo_param_type paramtype TSRMLS_DC)
{
char *ret;
if (unquotedlen && (unquoted[0] == '\x01' || memchr(unquoted, '\0', unquotedlen) != NULL)) {
/* binary string */
int len;
ret = safe_emalloc(1 + unquotedlen / 254, 257, 5);
ret[0] = '\'';
ret[1] = '\x01';
len = php_sqlite_encode_binary(unquoted, unquotedlen, ret+2);
ret[len + 2] = '\'';
ret[len + 3] = '\0';
*quoted = ret;
*quotedlen = len + 3;
/* fprintf(stderr, "Quoting:%d:%.*s:\n", *quotedlen, *quotedlen, *quoted); */
return 1;
} else if (unquotedlen) {
ret = sqlite_mprintf("'%q'", unquoted);
if (ret) {
*quoted = estrdup(ret);
*quotedlen = strlen(ret);
sqlite_freemem(ret);
return 1;
}
return 0;
} else {
*quoted = estrdup("''");
*quotedlen = 2;
return 1;
}
}
static int sqlite2_handle_begin(pdo_dbh_t *dbh TSRMLS_DC)
{
pdo_sqlite2_db_handle *H = (pdo_sqlite2_db_handle *)dbh->driver_data;
char *errmsg = NULL;
if (sqlite_exec(H->db, "BEGIN", NULL, NULL, &errmsg) != SQLITE_OK) {
pdo_sqlite2_error(errmsg, dbh);
return 0;
}
return 1;
}
static int sqlite2_handle_commit(pdo_dbh_t *dbh TSRMLS_DC)
{
pdo_sqlite2_db_handle *H = (pdo_sqlite2_db_handle *)dbh->driver_data;
char *errmsg = NULL;
if (sqlite_exec(H->db, "COMMIT", NULL, NULL, &errmsg) != SQLITE_OK) {
pdo_sqlite2_error(errmsg, dbh);
return 0;
}
return 1;
}
static int sqlite2_handle_rollback(pdo_dbh_t *dbh TSRMLS_DC)
{
pdo_sqlite2_db_handle *H = (pdo_sqlite2_db_handle *)dbh->driver_data;
char *errmsg = NULL;
if (sqlite_exec(H->db, "ROLLBACK", NULL, NULL, &errmsg) != SQLITE_OK) {
pdo_sqlite2_error(errmsg, dbh);
return 0;
}
return 1;
}
static int pdo_sqlite2_get_attribute(pdo_dbh_t *dbh, long attr, zval *return_value TSRMLS_DC)
{
switch (attr) {
case PDO_ATTR_CLIENT_VERSION:
case PDO_ATTR_SERVER_VERSION:
ZVAL_STRING(return_value, (char *)sqlite_libversion(), 1);
break;
default:
return 0;
}
return 1;
}
static int pdo_sqlite2_set_attr(pdo_dbh_t *dbh, long attr, zval *val TSRMLS_DC)
{
pdo_sqlite2_db_handle *H = (pdo_sqlite2_db_handle *)dbh->driver_data;
switch (attr) {
case PDO_ATTR_TIMEOUT:
convert_to_long(val);
sqlite_busy_timeout(H->db, Z_LVAL_P(val) * 1000);
return 1;
}
return 0;
}
static PHP_FUNCTION(sqlite2_create_function)
{
/* TODO: implement this stuff */
}
static const zend_function_entry dbh_methods[] = {
PHP_FE(sqlite2_create_function, NULL)
{NULL, NULL, NULL}
};
static const zend_function_entry *get_driver_methods(pdo_dbh_t *dbh, int kind TSRMLS_DC)
{
switch (kind) {
case PDO_DBH_DRIVER_METHOD_KIND_DBH:
return dbh_methods;
default:
return NULL;
}
}
static struct pdo_dbh_methods sqlite2_methods = {
sqlite2_handle_closer,
sqlite2_handle_preparer,
sqlite2_handle_doer,
sqlite2_handle_quoter,
sqlite2_handle_begin,
sqlite2_handle_commit,
sqlite2_handle_rollback,
pdo_sqlite2_set_attr,
pdo_sqlite2_last_insert_id,
pdo_sqlite2_fetch_error_func,
pdo_sqlite2_get_attribute,
NULL, /* check_liveness: not needed */
get_driver_methods
};
static char *make_filename_safe(const char *filename TSRMLS_DC)
{
if (strncmp(filename, ":memory:", sizeof(":memory:")-1)) {
char *fullpath = expand_filepath(filename, NULL TSRMLS_CC);
if (!fullpath) {
return NULL;
}
if (PG(safe_mode) && (!php_checkuid(fullpath, NULL, CHECKUID_CHECK_FILE_AND_DIR))) {
efree(fullpath);
return NULL;
}
if (php_check_open_basedir(fullpath TSRMLS_CC)) {
efree(fullpath);
return NULL;
}
return fullpath;
}
return estrdup(filename);
}
static int authorizer(void *autharg, int access_type, const char *arg3, const char *arg4,
const char *arg5, const char *arg6)
{
char *filename;
switch (access_type) {
case SQLITE_COPY: {
TSRMLS_FETCH();
filename = make_filename_safe(arg4 TSRMLS_CC);
if (!filename) {
return SQLITE_DENY;
}
efree(filename);
return SQLITE_OK;
}
case SQLITE_ATTACH: {
TSRMLS_FETCH();
filename = make_filename_safe(arg3 TSRMLS_CC);
if (!filename) {
return SQLITE_DENY;
}
efree(filename);
return SQLITE_OK;
}
default:
/* access allowed */
return SQLITE_OK;
}
}
static int pdo_sqlite2_handle_factory(pdo_dbh_t *dbh, zval *driver_options TSRMLS_DC) /* {{{ */
{
pdo_sqlite2_db_handle *H;
int ret = 0;
long timeout = 60;
char *filename;
char *errmsg = NULL;
H = pecalloc(1, sizeof(pdo_sqlite2_db_handle), dbh->is_persistent);
H->einfo.errcode = 0;
H->einfo.errmsg = NULL;
dbh->driver_data = H;
filename = make_filename_safe(dbh->data_source TSRMLS_CC);
if (!filename) {
zend_throw_exception_ex(php_pdo_get_exception(), 0 TSRMLS_CC,
"safe_mode/open_basedir prohibits opening %s",
dbh->data_source);
goto cleanup;
}
H->db = sqlite_open(filename, 0666, &errmsg);
efree(filename);
if (!H->db) {
pdo_sqlite2_error(errmsg, dbh);
goto cleanup;
}
sqlite_set_authorizer(H->db, authorizer, NULL);
if (driver_options) {
timeout = pdo_attr_lval(driver_options, PDO_ATTR_TIMEOUT, timeout TSRMLS_CC);
}
sqlite_busy_timeout(H->db, timeout * 1000);
dbh->alloc_own_columns = 1;
dbh->max_escaped_char_length = 2;
ret = 1;
cleanup:
dbh->methods = &sqlite2_methods;
return ret;
}
/* }}} */
pdo_driver_t pdo_sqlite2_driver = {
PDO_DRIVER_HEADER(sqlite2),
pdo_sqlite2_handle_factory
};
#endif
/*
* Local variables:
* tab-width: 4
* c-basic-offset: 4
* End:
* vim600: noet sw=4 ts=4 fdm=marker
* vim<600: noet sw=4 ts=4
*/
|