1: /*
2: +----------------------------------------------------------------------+
3: | PHP Version 5 |
4: +----------------------------------------------------------------------+
5: | Copyright (c) 1997-2014 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: | Marcus Boerger <helly@php.net> |
17: | Sterling Hughes <sterling@php.net> |
18: +----------------------------------------------------------------------+
19: */
20:
21: /* $Id: pdo.c,v 1.1.1.4 2014/06/15 20:03:51 misho Exp $ */
22:
23: #ifdef HAVE_CONFIG_H
24: #include "config.h"
25: #endif
26:
27: #include <ctype.h>
28: #include "php.h"
29: #include "php_ini.h"
30: #include "ext/standard/info.h"
31: #include "php_pdo.h"
32: #include "php_pdo_driver.h"
33: #include "php_pdo_int.h"
34: #include "zend_exceptions.h"
35:
36: static zend_class_entry *spl_ce_RuntimeException;
37:
38: ZEND_DECLARE_MODULE_GLOBALS(pdo)
39: static PHP_GINIT_FUNCTION(pdo);
40:
41: /* True global resources - no need for thread safety here */
42:
43: /* the registry of PDO drivers */
44: HashTable pdo_driver_hash;
45:
46: /* we use persistent resources for the driver connection stuff */
47: static int le_ppdo;
48:
49: int php_pdo_list_entry(void)
50: {
51: return le_ppdo;
52: }
53:
54: /* for exceptional circumstances */
55: zend_class_entry *pdo_exception_ce;
56:
57: PDO_API zend_class_entry *php_pdo_get_dbh_ce(void)
58: {
59: return pdo_dbh_ce;
60: }
61:
62: PDO_API zend_class_entry *php_pdo_get_exception(void)
63: {
64: return pdo_exception_ce;
65: }
66:
67: PDO_API char *php_pdo_str_tolower_dup(const char *src, int len)
68: {
69: char *dest = emalloc(len + 1);
70: zend_str_tolower_copy(dest, src, len);
71: return dest;
72: }
73:
74: PDO_API zend_class_entry *php_pdo_get_exception_base(int root TSRMLS_DC)
75: {
76: #if can_handle_soft_dependency_on_SPL && defined(HAVE_SPL) && ((PHP_MAJOR_VERSION > 5) || (PHP_MAJOR_VERSION == 5 && PHP_MINOR_VERSION >= 1))
77: if (!root) {
78: if (!spl_ce_RuntimeException) {
79: zend_class_entry **pce;
80:
81: if (zend_hash_find(CG(class_table), "runtimeexception", sizeof("RuntimeException"), (void **) &pce) == SUCCESS) {
82: spl_ce_RuntimeException = *pce;
83: return *pce;
84: }
85: } else {
86: return spl_ce_RuntimeException;
87: }
88: }
89: #endif
90: #if (PHP_MAJOR_VERSION == 5) && (PHP_MINOR_VERSION < 2)
91: return zend_exception_get_default();
92: #else
93: return zend_exception_get_default(TSRMLS_C);
94: #endif
95: }
96:
97: zend_class_entry *pdo_dbh_ce, *pdo_dbstmt_ce, *pdo_row_ce;
98:
99: /* {{{ proto array pdo_drivers()
100: Return array of available PDO drivers */
101: PHP_FUNCTION(pdo_drivers)
102: {
103: HashPosition pos;
104: pdo_driver_t **pdriver;
105:
106: if (zend_parse_parameters_none() == FAILURE) {
107: return;
108: }
109:
110: array_init(return_value);
111:
112: zend_hash_internal_pointer_reset_ex(&pdo_driver_hash, &pos);
113: while (SUCCESS == zend_hash_get_current_data_ex(&pdo_driver_hash, (void**)&pdriver, &pos)) {
114: add_next_index_stringl(return_value, (char*)(*pdriver)->driver_name, (*pdriver)->driver_name_len, 1);
115: zend_hash_move_forward_ex(&pdo_driver_hash, &pos);
116: }
117: }
118: /* }}} */
119:
120: /* {{{ arginfo */
121: ZEND_BEGIN_ARG_INFO(arginfo_pdo_drivers, 0)
122: ZEND_END_ARG_INFO()
123: /* }}} */
124:
125: /* {{{ pdo_functions[] */
126: const zend_function_entry pdo_functions[] = {
127: PHP_FE(pdo_drivers, arginfo_pdo_drivers)
128: PHP_FE_END
129: };
130: /* }}} */
131:
132: /* {{{ pdo_functions[] */
133: #if ZEND_MODULE_API_NO >= 20050922
134: static const zend_module_dep pdo_deps[] = {
135: #ifdef HAVE_SPL
136: ZEND_MOD_REQUIRED("spl")
137: #endif
138: ZEND_MOD_END
139: };
140: #endif
141: /* }}} */
142:
143: /* {{{ pdo_module_entry */
144: zend_module_entry pdo_module_entry = {
145: #if ZEND_MODULE_API_NO >= 20050922
146: STANDARD_MODULE_HEADER_EX, NULL,
147: pdo_deps,
148: #else
149: STANDARD_MODULE_HEADER,
150: #endif
151: "PDO",
152: pdo_functions,
153: PHP_MINIT(pdo),
154: PHP_MSHUTDOWN(pdo),
155: NULL,
156: NULL,
157: PHP_MINFO(pdo),
158: "1.0.4dev",
159: PHP_MODULE_GLOBALS(pdo),
160: PHP_GINIT(pdo),
161: NULL,
162: NULL,
163: STANDARD_MODULE_PROPERTIES_EX
164: };
165: /* }}} */
166:
167: /* TODO: visit persistent handles: for each persistent statement handle,
168: * remove bound parameter associations */
169:
170: #ifdef COMPILE_DL_PDO
171: ZEND_GET_MODULE(pdo)
172: #endif
173:
174: /* {{{ PHP_GINIT_FUNCTION */
175: static PHP_GINIT_FUNCTION(pdo)
176: {
177: pdo_globals->global_value = 0;
178: }
179: /* }}} */
180:
181: PDO_API int php_pdo_register_driver(pdo_driver_t *driver)
182: {
183: if (driver->api_version != PDO_DRIVER_API) {
184: zend_error(E_ERROR, "PDO: driver %s requires PDO API version %ld; this is PDO version %d",
185: driver->driver_name, driver->api_version, PDO_DRIVER_API);
186: return FAILURE;
187: }
188: if (!zend_hash_exists(&module_registry, "pdo", sizeof("pdo"))) {
189: zend_error(E_ERROR, "You MUST load PDO before loading any PDO drivers");
190: return FAILURE; /* NOTREACHED */
191: }
192:
193: return zend_hash_add(&pdo_driver_hash, (char*)driver->driver_name, driver->driver_name_len,
194: (void**)&driver, sizeof(pdo_driver_t *), NULL);
195: }
196:
197: PDO_API void php_pdo_unregister_driver(pdo_driver_t *driver)
198: {
199: if (!zend_hash_exists(&module_registry, "pdo", sizeof("pdo"))) {
200: return;
201: }
202:
203: zend_hash_del(&pdo_driver_hash, (char*)driver->driver_name, driver->driver_name_len);
204: }
205:
206: pdo_driver_t *pdo_find_driver(const char *name, int namelen)
207: {
208: pdo_driver_t **driver = NULL;
209:
210: zend_hash_find(&pdo_driver_hash, (char*)name, namelen, (void**)&driver);
211:
212: return driver ? *driver : NULL;
213: }
214:
215: PDO_API int php_pdo_parse_data_source(const char *data_source,
216: unsigned long data_source_len, struct pdo_data_src_parser *parsed,
217: int nparams)
218: {
219: int i, j;
220: int valstart = -1;
221: int semi = -1;
222: int optstart = 0;
223: int nlen;
224: int n_matches = 0;
225: int n_semicolumns = 0;
226:
227: i = 0;
228: while (i < data_source_len) {
229: /* looking for NAME= */
230:
231: if (data_source[i] == '\0') {
232: break;
233: }
234:
235: if (data_source[i] != '=') {
236: ++i;
237: continue;
238: }
239:
240: valstart = ++i;
241:
242: /* now we're looking for VALUE; or just VALUE<NUL> */
243: semi = -1;
244: n_semicolumns = 0;
245: while (i < data_source_len) {
246: if (data_source[i] == '\0') {
247: semi = i++;
248: break;
249: }
250: if (data_source[i] == ';') {
251: if ((i + 1 >= data_source_len) || data_source[i+1] != ';') {
252: semi = i++;
253: break;
254: } else {
255: n_semicolumns++;
256: i += 2;
257: continue;
258: }
259: }
260: ++i;
261: }
262:
263: if (semi == -1) {
264: semi = i;
265: }
266:
267: /* find the entry in the array */
268: nlen = valstart - optstart - 1;
269: for (j = 0; j < nparams; j++) {
270: if (0 == strncmp(data_source + optstart, parsed[j].optname, nlen) && parsed[j].optname[nlen] == '\0') {
271: /* got a match */
272: if (parsed[j].freeme) {
273: efree(parsed[j].optval);
274: }
275:
276: if (n_semicolumns == 0) {
277: parsed[j].optval = estrndup(data_source + valstart, semi - valstart - n_semicolumns);
278: } else {
279: int vlen = semi - valstart;
280: const char *orig_val = data_source + valstart;
281: char *new_val = (char *) emalloc(vlen - n_semicolumns + 1);
282:
283: parsed[j].optval = new_val;
284:
285: while (vlen && *orig_val) {
286: *new_val = *orig_val;
287: new_val++;
288:
289: if (*orig_val == ';') {
290: orig_val+=2;
291: vlen-=2;
292: } else {
293: orig_val++;
294: vlen--;
295: }
296: }
297: *new_val = '\0';
298: }
299:
300: parsed[j].freeme = 1;
301: ++n_matches;
302: break;
303: }
304: }
305:
306: while (i < data_source_len && isspace(data_source[i])) {
307: i++;
308: }
309:
310: optstart = i;
311: }
312:
313: return n_matches;
314: }
315:
316: static const char digit_vec[] = "0123456789";
317: PDO_API char *php_pdo_int64_to_str(pdo_int64_t i64 TSRMLS_DC)
318: {
319: char buffer[65];
320: char outbuf[65] = "";
321: register char *p;
322: long long_val;
323: char *dst = outbuf;
324:
325: if (i64 < 0) {
326: i64 = -i64;
327: *dst++ = '-';
328: }
329:
330: if (i64 == 0) {
331: *dst++ = '0';
332: *dst++ = '\0';
333: return estrdup(outbuf);
334: }
335:
336: p = &buffer[sizeof(buffer)-1];
337: *p = '\0';
338:
339: while ((pdo_uint64_t)i64 > (pdo_uint64_t)LONG_MAX) {
340: pdo_uint64_t quo = (pdo_uint64_t)i64 / (unsigned int)10;
341: unsigned int rem = (unsigned int)(i64 - quo*10U);
342: *--p = digit_vec[rem];
343: i64 = (pdo_int64_t)quo;
344: }
345: long_val = (long)i64;
346: while (long_val != 0) {
347: long quo = long_val / 10;
348: *--p = digit_vec[(unsigned int)(long_val - quo * 10)];
349: long_val = quo;
350: }
351: while ((*dst++ = *p++) != 0)
352: ;
353: *dst = '\0';
354: return estrdup(outbuf);
355: }
356:
357: /* {{{ PHP_MINIT_FUNCTION */
358: PHP_MINIT_FUNCTION(pdo)
359: {
360: zend_class_entry ce;
361:
362: spl_ce_RuntimeException = NULL;
363:
364: if (FAILURE == pdo_sqlstate_init_error_table()) {
365: return FAILURE;
366: }
367:
368: zend_hash_init(&pdo_driver_hash, 0, NULL, NULL, 1);
369:
370: le_ppdo = zend_register_list_destructors_ex(NULL, php_pdo_pdbh_dtor,
371: "PDO persistent database", module_number);
372:
373: INIT_CLASS_ENTRY(ce, "PDOException", NULL);
374:
375: pdo_exception_ce = zend_register_internal_class_ex(&ce, php_pdo_get_exception_base(0 TSRMLS_CC), NULL TSRMLS_CC);
376:
377: zend_declare_property_null(pdo_exception_ce, "errorInfo", sizeof("errorInfo")-1, ZEND_ACC_PUBLIC TSRMLS_CC);
378:
379: pdo_dbh_init(TSRMLS_C);
380: pdo_stmt_init(TSRMLS_C);
381:
382: return SUCCESS;
383: }
384: /* }}} */
385:
386: /* {{{ PHP_MSHUTDOWN_FUNCTION */
387: PHP_MSHUTDOWN_FUNCTION(pdo)
388: {
389: zend_hash_destroy(&pdo_driver_hash);
390: pdo_sqlstate_fini_error_table();
391: return SUCCESS;
392: }
393: /* }}} */
394:
395: /* {{{ PHP_MINFO_FUNCTION */
396: PHP_MINFO_FUNCTION(pdo)
397: {
398: HashPosition pos;
399: char *drivers = NULL, *ldrivers = estrdup("");
400: pdo_driver_t **pdriver;
401:
402: php_info_print_table_start();
403: php_info_print_table_header(2, "PDO support", "enabled");
404:
405: zend_hash_internal_pointer_reset_ex(&pdo_driver_hash, &pos);
406: while (SUCCESS == zend_hash_get_current_data_ex(&pdo_driver_hash, (void**)&pdriver, &pos)) {
407: spprintf(&drivers, 0, "%s, %s", ldrivers, (*pdriver)->driver_name);
408: zend_hash_move_forward_ex(&pdo_driver_hash, &pos);
409: efree(ldrivers);
410: ldrivers = drivers;
411: }
412:
413: php_info_print_table_row(2, "PDO drivers", drivers ? drivers+2 : "");
414:
415: if (drivers) {
416: efree(drivers);
417: } else {
418: efree(ldrivers);
419: }
420:
421: php_info_print_table_end();
422:
423: }
424: /* }}} */
425:
426: /*
427: * Local variables:
428: * tab-width: 4
429: * c-basic-offset: 4
430: * End:
431: * vim600: noet sw=4 ts=4 fdm=marker
432: * vim<600: noet sw=4 ts=4
433: */
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