1 /*
2 +----------------------------------------------------------------------+
3 | PHP Version 7 |
4 +----------------------------------------------------------------------+
5 | Copyright (c) 1997-2018 The PHP Group |
6 +----------------------------------------------------------------------+
7 | This source file is subject to version 3.01 of the PHP license, |
8 | that is bundled with this package in the file LICENSE, and is |
9 | available through the world-wide-web at the following url: |
10 | http://www.php.net/license/3_01.txt |
11 | If you did not receive a copy of the PHP license and are unable to |
12 | obtain it through the world-wide-web, please send a note to |
13 | license@php.net so we can mail you a copy immediately. |
14 +----------------------------------------------------------------------+
15 | Author: Wez Furlong <wez@php.net> |
16 | Frank M. Kromann <frank@kromann.info> |
17 +----------------------------------------------------------------------+
18 */
19
20 /* $Id$ */
21
22 #ifdef HAVE_CONFIG_H
23 # include "config.h"
24 #endif
25
26 #include "php.h"
27 #include "php_ini.h"
28 #include "ext/standard/info.h"
29 #include "pdo/php_pdo.h"
30 #include "pdo/php_pdo_driver.h"
31 #include "php_pdo_dblib.h"
32 #include "php_pdo_dblib_int.h"
33 #include "zend_exceptions.h"
34
35 /* Cache of the server supported datatypes, initialized in handle_factory */
36 zval* pdo_dblib_datatypes;
37
dblib_fetch_error(pdo_dbh_t * dbh,pdo_stmt_t * stmt,zval * info)38 static int dblib_fetch_error(pdo_dbh_t *dbh, pdo_stmt_t *stmt, zval *info)
39 {
40 pdo_dblib_db_handle *H = (pdo_dblib_db_handle *)dbh->driver_data;
41 pdo_dblib_err *einfo = &H->err;
42 pdo_dblib_stmt *S = NULL;
43 char *message;
44 char *msg;
45
46 if (stmt) {
47 S = (pdo_dblib_stmt*)stmt->driver_data;
48 einfo = &S->err;
49 }
50
51 if (einfo->lastmsg) {
52 msg = einfo->lastmsg;
53 } else if (DBLIB_G(err).lastmsg) {
54 msg = DBLIB_G(err).lastmsg;
55 DBLIB_G(err).lastmsg = NULL;
56 } else {
57 msg = einfo->dberrstr;
58 }
59
60 /* don't return anything if there's nothing to return */
61 if (msg == NULL && einfo->dberr == 0 && einfo->oserr == 0 && einfo->severity == 0) {
62 return 0;
63 }
64
65 spprintf(&message, 0, "%s [%d] (severity %d) [%s]",
66 msg, einfo->dberr, einfo->severity, stmt ? stmt->active_query_string : "");
67
68 add_next_index_long(info, einfo->dberr);
69 add_next_index_string(info, message);
70 efree(message);
71 add_next_index_long(info, einfo->oserr);
72 add_next_index_long(info, einfo->severity);
73 if (einfo->oserrstr) {
74 add_next_index_string(info, einfo->oserrstr);
75 }
76
77 return 1;
78 }
79
80
dblib_handle_closer(pdo_dbh_t * dbh)81 static int dblib_handle_closer(pdo_dbh_t *dbh)
82 {
83 pdo_dblib_db_handle *H = (pdo_dblib_db_handle *)dbh->driver_data;
84
85 if (H) {
86 pdo_dblib_err_dtor(&H->err);
87 if (H->link) {
88 dbclose(H->link);
89 H->link = NULL;
90 }
91 if (H->login) {
92 dbfreelogin(H->login);
93 H->login = NULL;
94 }
95 pefree(H, dbh->is_persistent);
96 dbh->driver_data = NULL;
97 }
98 return 0;
99 }
100
dblib_handle_preparer(pdo_dbh_t * dbh,const char * sql,size_t sql_len,pdo_stmt_t * stmt,zval * driver_options)101 static int dblib_handle_preparer(pdo_dbh_t *dbh, const char *sql, size_t sql_len, pdo_stmt_t *stmt, zval *driver_options)
102 {
103 pdo_dblib_db_handle *H = (pdo_dblib_db_handle *)dbh->driver_data;
104 pdo_dblib_stmt *S = ecalloc(1, sizeof(*S));
105
106 S->H = H;
107 stmt->driver_data = S;
108 stmt->methods = &dblib_stmt_methods;
109 stmt->supports_placeholders = PDO_PLACEHOLDER_NONE;
110 S->computed_column_name_count = 0;
111 S->err.sqlstate = stmt->error_code;
112
113 return 1;
114 }
115
dblib_handle_doer(pdo_dbh_t * dbh,const char * sql,size_t sql_len)116 static zend_long dblib_handle_doer(pdo_dbh_t *dbh, const char *sql, size_t sql_len)
117 {
118 pdo_dblib_db_handle *H = (pdo_dblib_db_handle *)dbh->driver_data;
119 RETCODE ret, resret;
120
121 dbsetuserdata(H->link, (BYTE*)&H->err);
122
123 if (FAIL == dbcmd(H->link, sql)) {
124 return -1;
125 }
126
127 if (FAIL == dbsqlexec(H->link)) {
128 return -1;
129 }
130
131 resret = dbresults(H->link);
132
133 if (resret == FAIL) {
134 return -1;
135 }
136
137 ret = dbnextrow(H->link);
138 if (ret == FAIL) {
139 return -1;
140 }
141
142 if (dbnumcols(H->link) <= 0) {
143 return DBCOUNT(H->link);
144 }
145
146 /* throw away any rows it might have returned */
147 dbcanquery(H->link);
148
149 return DBCOUNT(H->link);
150 }
151
dblib_handle_quoter(pdo_dbh_t * dbh,const char * unquoted,size_t unquotedlen,char ** quoted,size_t * quotedlen,enum pdo_param_type paramtype)152 static int dblib_handle_quoter(pdo_dbh_t *dbh, const char *unquoted, size_t unquotedlen, char **quoted, size_t *quotedlen, enum pdo_param_type paramtype)
153 {
154
155 size_t i;
156 char * q;
157 *quotedlen = 0;
158
159 /* Detect quoted length, adding extra char for doubled single quotes */
160 for(i=0;i<unquotedlen;i++) {
161 if(unquoted[i] == '\'') ++*quotedlen;
162 ++*quotedlen;
163 }
164
165 *quotedlen += 2; /* +2 for opening, closing quotes */
166 q = *quoted = emalloc(*quotedlen+1); /* Add byte for terminal null */
167 *q++ = '\'';
168
169 for (i=0;i<unquotedlen;i++) {
170 if (unquoted[i] == '\'') {
171 *q++ = '\'';
172 *q++ = '\'';
173 } else {
174 *q++ = unquoted[i];
175 }
176 }
177 *q++ = '\'';
178
179 *q = 0;
180
181 return 1;
182 }
183
pdo_dblib_transaction_cmd(const char * cmd,pdo_dbh_t * dbh)184 static int pdo_dblib_transaction_cmd(const char *cmd, pdo_dbh_t *dbh)
185 {
186 pdo_dblib_db_handle *H = (pdo_dblib_db_handle *)dbh->driver_data;
187
188 if (FAIL == dbcmd(H->link, cmd)) {
189 return 0;
190 }
191
192 if (FAIL == dbsqlexec(H->link)) {
193 return 0;
194 }
195
196 return 1;
197 }
198
dblib_handle_begin(pdo_dbh_t * dbh)199 static int dblib_handle_begin(pdo_dbh_t *dbh)
200 {
201 return pdo_dblib_transaction_cmd("BEGIN TRANSACTION", dbh);
202 }
203
dblib_handle_commit(pdo_dbh_t * dbh)204 static int dblib_handle_commit(pdo_dbh_t *dbh)
205 {
206 return pdo_dblib_transaction_cmd("COMMIT TRANSACTION", dbh);
207 }
208
dblib_handle_rollback(pdo_dbh_t * dbh)209 static int dblib_handle_rollback(pdo_dbh_t *dbh)
210 {
211 return pdo_dblib_transaction_cmd("ROLLBACK TRANSACTION", dbh);
212 }
213
dblib_handle_last_id(pdo_dbh_t * dbh,const char * name,size_t * len)214 char *dblib_handle_last_id(pdo_dbh_t *dbh, const char *name, size_t *len)
215 {
216 pdo_dblib_db_handle *H = (pdo_dblib_db_handle *)dbh->driver_data;
217
218 RETCODE ret;
219 char *id = NULL;
220
221 /*
222 * Would use scope_identity() but it's not implemented on Sybase
223 */
224
225 if (FAIL == dbcmd(H->link, "SELECT @@IDENTITY")) {
226 return NULL;
227 }
228
229 if (FAIL == dbsqlexec(H->link)) {
230 return NULL;
231 }
232
233 ret = dbresults(H->link);
234 if (ret == FAIL || ret == NO_MORE_RESULTS) {
235 dbcancel(H->link);
236 return NULL;
237 }
238
239 ret = dbnextrow(H->link);
240
241 if (ret == FAIL || ret == NO_MORE_ROWS) {
242 dbcancel(H->link);
243 return NULL;
244 }
245
246 if (dbdatlen(H->link, 1) == 0) {
247 dbcancel(H->link);
248 return NULL;
249 }
250
251 id = emalloc(32);
252 *len = dbconvert(NULL, (dbcoltype(H->link, 1)) , (dbdata(H->link, 1)) , (dbdatlen(H->link, 1)), SQLCHAR, (BYTE *)id, (DBINT)-1);
253
254 dbcancel(H->link);
255 return id;
256 }
257
dblib_set_attr(pdo_dbh_t * dbh,zend_long attr,zval * val)258 static int dblib_set_attr(pdo_dbh_t *dbh, zend_long attr, zval *val)
259 {
260 switch(attr) {
261 case PDO_ATTR_TIMEOUT:
262 case PDO_DBLIB_ATTR_QUERY_TIMEOUT:
263 return SUCCEED == dbsettime(zval_get_long(val)) ? 1 : 0;
264 case PDO_DBLIB_ATTR_STRINGIFY_UNIQUEIDENTIFIER:
265 ((pdo_dblib_db_handle *)dbh->driver_data)->stringify_uniqueidentifier = zval_get_long(val);
266 return 1;
267 default:
268 return 0;
269 }
270 }
271
dblib_get_attribute(pdo_dbh_t * dbh,zend_long attr,zval * return_value)272 static int dblib_get_attribute(pdo_dbh_t *dbh, zend_long attr, zval *return_value)
273 {
274 switch (attr) {
275 case PDO_DBLIB_ATTR_STRINGIFY_UNIQUEIDENTIFIER:
276 ZVAL_BOOL(return_value, ((pdo_dblib_db_handle *)dbh->driver_data)->stringify_uniqueidentifier);
277 break;
278
279 default:
280 return 0;
281 }
282
283 return 1;
284 }
285
286 static struct pdo_dbh_methods dblib_methods = {
287 dblib_handle_closer,
288 dblib_handle_preparer,
289 dblib_handle_doer,
290 dblib_handle_quoter,
291 dblib_handle_begin, /* begin */
292 dblib_handle_commit, /* commit */
293 dblib_handle_rollback, /* rollback */
294 dblib_set_attr, /*set attr */
295 dblib_handle_last_id, /* last insert id */
296 dblib_fetch_error, /* fetch error */
297 dblib_get_attribute, /* get attr */
298 NULL, /* check liveness */
299 NULL, /* get driver methods */
300 NULL, /* request shutdown */
301 NULL /* in transaction */
302 };
303
pdo_dblib_handle_factory(pdo_dbh_t * dbh,zval * driver_options)304 static int pdo_dblib_handle_factory(pdo_dbh_t *dbh, zval *driver_options)
305 {
306 pdo_dblib_db_handle *H;
307 int i, nvars, nvers, ret = 0;
308
309 const pdo_dblib_keyval tdsver[] = {
310 {"4.2",DBVERSION_42}
311 ,{"4.6",DBVERSION_46}
312 ,{"5.0",DBVERSION_70} /* FIXME: This does not work with Sybase, but environ will */
313 ,{"6.0",DBVERSION_70}
314 ,{"7.0",DBVERSION_70}
315 #ifdef DBVERSION_71
316 ,{"7.1",DBVERSION_71}
317 #endif
318 #ifdef DBVERSION_72
319 ,{"7.2",DBVERSION_72}
320 ,{"8.0",DBVERSION_72}
321 #endif
322 #ifdef DBVERSION_73
323 ,{"7.3",DBVERSION_73}
324 #endif
325 #ifdef DBVERSION_74
326 ,{"7.4",DBVERSION_74}
327 #endif
328 ,{"10.0",DBVERSION_100}
329 ,{"auto",0} /* Only works with FreeTDS. Other drivers will bork */
330
331 };
332
333 struct pdo_data_src_parser vars[] = {
334 { "charset", NULL, 0 }
335 ,{ "appname", "PHP " PDO_DBLIB_FLAVOUR, 0 }
336 ,{ "host", "127.0.0.1", 0 }
337 ,{ "dbname", NULL, 0 }
338 ,{ "secure", NULL, 0 } /* DBSETLSECURE */
339 ,{ "version", NULL, 0 } /* DBSETLVERSION */
340 };
341
342 nvars = sizeof(vars)/sizeof(vars[0]);
343 nvers = sizeof(tdsver)/sizeof(tdsver[0]);
344
345 php_pdo_parse_data_source(dbh->data_source, dbh->data_source_len, vars, nvars);
346
347 H = pecalloc(1, sizeof(*H), dbh->is_persistent);
348 H->login = dblogin();
349 H->err.sqlstate = dbh->error_code;
350 H->stringify_uniqueidentifier = 0;
351
352 if (!H->login) {
353 goto cleanup;
354 }
355
356 if (driver_options) {
357 int connect_timeout = pdo_attr_lval(driver_options, PDO_DBLIB_ATTR_CONNECTION_TIMEOUT, -1);
358 int query_timeout = pdo_attr_lval(driver_options, PDO_DBLIB_ATTR_QUERY_TIMEOUT, -1);
359 int timeout = pdo_attr_lval(driver_options, PDO_ATTR_TIMEOUT, 30);
360
361 if (connect_timeout == -1) {
362 connect_timeout = timeout;
363 }
364 if (query_timeout == -1) {
365 query_timeout = timeout;
366 }
367
368 dbsetlogintime(connect_timeout); /* Connection/Login Timeout */
369 dbsettime(query_timeout); /* Statement Timeout */
370
371 H->stringify_uniqueidentifier = pdo_attr_lval(driver_options, PDO_DBLIB_ATTR_STRINGIFY_UNIQUEIDENTIFIER, 0);
372 }
373
374 DBERRHANDLE(H->login, (EHANDLEFUNC) pdo_dblib_error_handler);
375 DBMSGHANDLE(H->login, (MHANDLEFUNC) pdo_dblib_msg_handler);
376
377 if(vars[5].optval) {
378 for(i=0;i<nvers;i++) {
379 if(strcmp(vars[5].optval,tdsver[i].key) == 0) {
380 if(FAIL==dbsetlversion(H->login, tdsver[i].value)) {
381 pdo_raise_impl_error(dbh, NULL, "HY000", "PDO_DBLIB: Failed to set version specified in connection string.");
382 goto cleanup;
383 }
384 break;
385 }
386 }
387
388 if (i==nvers) {
389 printf("Invalid version '%s'\n", vars[5].optval);
390 pdo_raise_impl_error(dbh, NULL, "HY000", "PDO_DBLIB: Invalid version specified in connection string.");
391 goto cleanup; /* unknown version specified */
392 }
393 }
394
395 if (dbh->username) {
396 if(FAIL == DBSETLUSER(H->login, dbh->username)) {
397 goto cleanup;
398 }
399 }
400
401 if (dbh->password) {
402 if(FAIL == DBSETLPWD(H->login, dbh->password)) {
403 goto cleanup;
404 }
405 }
406
407 #if !PHP_DBLIB_IS_MSSQL
408 if (vars[0].optval) {
409 DBSETLCHARSET(H->login, vars[0].optval);
410 }
411 #endif
412
413 DBSETLAPP(H->login, vars[1].optval);
414
415 /* DBSETLDBNAME is only available in FreeTDS 0.92 or above */
416 #ifdef DBSETLDBNAME
417 if (vars[3].optval) {
418 if(FAIL == DBSETLDBNAME(H->login, vars[3].optval)) goto cleanup;
419 }
420 #endif
421
422 H->link = dbopen(H->login, vars[2].optval);
423
424 if (!H->link) {
425 goto cleanup;
426 }
427
428 /*
429 * FreeTDS < 0.92 does not support the DBSETLDBNAME option
430 * Send use database here after login (Will not work with SQL Azure)
431 */
432 #ifndef DBSETLDBNAME
433 if (vars[3].optval) {
434 if(FAIL == dbuse(H->link, vars[3].optval)) goto cleanup;
435 }
436 #endif
437
438 #if PHP_DBLIB_IS_MSSQL
439 /* dblib do not return more than this length from text/image */
440 DBSETOPT(H->link, DBTEXTLIMIT, "2147483647");
441 #endif
442
443 /* limit text/image from network */
444 DBSETOPT(H->link, DBTEXTSIZE, "2147483647");
445
446 /* allow double quoted indentifiers */
447 DBSETOPT(H->link, DBQUOTEDIDENT, "1");
448
449 ret = 1;
450 dbh->max_escaped_char_length = 2;
451 dbh->alloc_own_columns = 1;
452
453 cleanup:
454 for (i = 0; i < nvars; i++) {
455 if (vars[i].freeme) {
456 efree(vars[i].optval);
457 }
458 }
459
460 dbh->methods = &dblib_methods;
461 dbh->driver_data = H;
462
463 if (!ret) {
464 zend_throw_exception_ex(php_pdo_get_exception(), DBLIB_G(err).dberr,
465 "SQLSTATE[%s] %s (severity %d)",
466 DBLIB_G(err).sqlstate,
467 DBLIB_G(err).dberrstr,
468 DBLIB_G(err).severity);
469 }
470
471 return ret;
472 }
473
474 pdo_driver_t pdo_dblib_driver = {
475 #if PDO_DBLIB_IS_MSSQL
476 PDO_DRIVER_HEADER(mssql),
477 #elif defined(PHP_WIN32)
478 #define PDO_DBLIB_IS_SYBASE
479 PDO_DRIVER_HEADER(sybase),
480 #else
481 PDO_DRIVER_HEADER(dblib),
482 #endif
483 pdo_dblib_handle_factory
484 };
485
