1 /*
2 +----------------------------------------------------------------------+
3 | PHP Version 5 |
4 +----------------------------------------------------------------------+
5 | Copyright (c) 2006-2015 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 | Authors: Andrey Hristov <andrey@mysql.com> |
16 | Ulf Wendel <uwendel@mysql.com> |
17 | Georg Richter <georg@mysql.com> |
18 +----------------------------------------------------------------------+
19 */
20
21 #include "php.h"
22 #include "php_globals.h"
23 #include "mysqlnd.h"
24 #include "mysqlnd_wireprotocol.h"
25 #include "mysqlnd_priv.h"
26 #include "mysqlnd_debug.h"
27
28 /* {{{ mysqlnd_local_infile_init */
29 static
mysqlnd_local_infile_init(void ** ptr,char * filename,void ** userdata TSRMLS_DC)30 int mysqlnd_local_infile_init(void ** ptr, char * filename, void ** userdata TSRMLS_DC)
31 {
32 MYSQLND_INFILE_INFO *info;
33 php_stream_context *context = NULL;
34
35 DBG_ENTER("mysqlnd_local_infile_init");
36
37 info = ((MYSQLND_INFILE_INFO *)mnd_ecalloc(1, sizeof(MYSQLND_INFILE_INFO)));
38 if (!info) {
39 DBG_RETURN(1);
40 }
41
42 *ptr = info;
43
44 /* check open_basedir */
45 if (PG(open_basedir)) {
46 if (php_check_open_basedir_ex(filename, 0 TSRMLS_CC) == -1) {
47 strcpy(info->error_msg, "open_basedir restriction in effect. Unable to open file");
48 info->error_no = CR_UNKNOWN_ERROR;
49 DBG_RETURN(1);
50 }
51 }
52
53 info->filename = filename;
54 info->fd = php_stream_open_wrapper_ex((char *)filename, "r", 0, NULL, context);
55
56 if (info->fd == NULL) {
57 snprintf((char *)info->error_msg, sizeof(info->error_msg), "Can't find file '%-.64s'.", filename);
58 info->error_no = MYSQLND_EE_FILENOTFOUND;
59 DBG_RETURN(1);
60 }
61
62 DBG_RETURN(0);
63 }
64 /* }}} */
65
66
67 /* {{{ mysqlnd_local_infile_read */
68 static
mysqlnd_local_infile_read(void * ptr,zend_uchar * buf,unsigned int buf_len TSRMLS_DC)69 int mysqlnd_local_infile_read(void * ptr, zend_uchar * buf, unsigned int buf_len TSRMLS_DC)
70 {
71 MYSQLND_INFILE_INFO *info = (MYSQLND_INFILE_INFO *)ptr;
72 int count;
73
74 DBG_ENTER("mysqlnd_local_infile_read");
75
76 count = (int)php_stream_read(info->fd, (char *) buf, buf_len);
77
78 if (count < 0) {
79 strcpy(info->error_msg, "Error reading file");
80 info->error_no = CR_UNKNOWN_ERROR;
81 }
82
83 DBG_RETURN(count);
84 }
85 /* }}} */
86
87
88 /* {{{ mysqlnd_local_infile_error */
89 static
mysqlnd_local_infile_error(void * ptr,char * error_buf,unsigned int error_buf_len TSRMLS_DC)90 int mysqlnd_local_infile_error(void * ptr, char *error_buf, unsigned int error_buf_len TSRMLS_DC)
91 {
92 MYSQLND_INFILE_INFO *info = (MYSQLND_INFILE_INFO *)ptr;
93
94 DBG_ENTER("mysqlnd_local_infile_error");
95
96 if (info) {
97 strlcpy(error_buf, info->error_msg, error_buf_len);
98 DBG_INF_FMT("have info, %d", info->error_no);
99 DBG_RETURN(info->error_no);
100 }
101
102 strlcpy(error_buf, "Unknown error", error_buf_len);
103 DBG_INF_FMT("no info, %d", CR_UNKNOWN_ERROR);
104 DBG_RETURN(CR_UNKNOWN_ERROR);
105 }
106 /* }}} */
107
108
109 /* {{{ mysqlnd_local_infile_end */
110 static
mysqlnd_local_infile_end(void * ptr TSRMLS_DC)111 void mysqlnd_local_infile_end(void * ptr TSRMLS_DC)
112 {
113 MYSQLND_INFILE_INFO *info = (MYSQLND_INFILE_INFO *)ptr;
114
115 if (info) {
116 /* php_stream_close segfaults on NULL */
117 if (info->fd) {
118 php_stream_close(info->fd);
119 info->fd = NULL;
120 }
121 mnd_efree(info);
122 }
123 }
124 /* }}} */
125
126
127 /* {{{ mysqlnd_local_infile_default */
128 PHPAPI void
mysqlnd_local_infile_default(MYSQLND_CONN_DATA * conn)129 mysqlnd_local_infile_default(MYSQLND_CONN_DATA * conn)
130 {
131 conn->infile.local_infile_init = mysqlnd_local_infile_init;
132 conn->infile.local_infile_read = mysqlnd_local_infile_read;
133 conn->infile.local_infile_error = mysqlnd_local_infile_error;
134 conn->infile.local_infile_end = mysqlnd_local_infile_end;
135 }
136 /* }}} */
137
138
139 /* {{{ mysqlnd_set_local_infile_handler */
140 PHPAPI void
mysqlnd_set_local_infile_handler(MYSQLND_CONN_DATA * const conn,const char * const funcname)141 mysqlnd_set_local_infile_handler(MYSQLND_CONN_DATA * const conn, const char * const funcname)
142 {
143 if (!conn->infile.callback) {
144 MAKE_STD_ZVAL(conn->infile.callback);
145 } else {
146 zval_dtor(conn->infile.callback);
147 }
148 ZVAL_STRING(conn->infile.callback, (char*) funcname, 1);
149 }
150 /* }}} */
151
152
153 static const char *lost_conn = "Lost connection to MySQL server during LOAD DATA of local file";
154
155
156 /* {{{ mysqlnd_handle_local_infile */
157 enum_func_status
mysqlnd_handle_local_infile(MYSQLND_CONN_DATA * conn,const char * filename,zend_bool * is_warning TSRMLS_DC)158 mysqlnd_handle_local_infile(MYSQLND_CONN_DATA * conn, const char * filename, zend_bool * is_warning TSRMLS_DC)
159 {
160 zend_uchar *buf = NULL;
161 zend_uchar empty_packet[MYSQLND_HEADER_SIZE];
162 enum_func_status result = FAIL;
163 unsigned int buflen = 4096;
164 void *info = NULL;
165 int bufsize;
166 size_t ret;
167 MYSQLND_INFILE infile;
168 MYSQLND_NET * net = conn->net;
169
170 DBG_ENTER("mysqlnd_handle_local_infile");
171
172 if (!(conn->options->flags & CLIENT_LOCAL_FILES)) {
173 php_error_docref(NULL TSRMLS_CC, E_WARNING, "LOAD DATA LOCAL INFILE forbidden");
174 /* write empty packet to server */
175 ret = net->data->m.send_ex(net, empty_packet, 0, conn->stats, conn->error_info TSRMLS_CC);
176 *is_warning = TRUE;
177 goto infile_error;
178 }
179
180 infile = conn->infile;
181 /* allocate buffer for reading data */
182 buf = (zend_uchar *) mnd_ecalloc(1, buflen);
183
184 *is_warning = FALSE;
185
186 /* init handler: allocate read buffer and open file */
187 if (infile.local_infile_init(&info, (char *)filename, conn->infile.userdata TSRMLS_CC)) {
188 char tmp_buf[sizeof(conn->error_info->error)];
189 int tmp_error_no;
190 *is_warning = TRUE;
191 /* error occurred */
192 tmp_error_no = infile.local_infile_error(info, tmp_buf, sizeof(tmp_buf) TSRMLS_CC);
193 SET_CLIENT_ERROR(*conn->error_info, tmp_error_no, UNKNOWN_SQLSTATE, tmp_buf);
194 /* write empty packet to server */
195 ret = net->data->m.send_ex(net, empty_packet, 0, conn->stats, conn->error_info TSRMLS_CC);
196 goto infile_error;
197 }
198
199 /* read data */
200 while ((bufsize = infile.local_infile_read (info, buf + MYSQLND_HEADER_SIZE, buflen - MYSQLND_HEADER_SIZE TSRMLS_CC)) > 0) {
201 if ((ret = net->data->m.send_ex(net, buf, bufsize, conn->stats, conn->error_info TSRMLS_CC)) == 0) {
202 DBG_ERR_FMT("Error during read : %d %s %s", CR_SERVER_LOST, UNKNOWN_SQLSTATE, lost_conn);
203 SET_CLIENT_ERROR(*conn->error_info, CR_SERVER_LOST, UNKNOWN_SQLSTATE, lost_conn);
204 goto infile_error;
205 }
206 }
207
208 /* send empty packet for eof */
209 if ((ret = net->data->m.send_ex(net, empty_packet, 0, conn->stats, conn->error_info TSRMLS_CC)) == 0) {
210 SET_CLIENT_ERROR(*conn->error_info, CR_SERVER_LOST, UNKNOWN_SQLSTATE, lost_conn);
211 goto infile_error;
212 }
213
214 /* error during read occurred */
215 if (bufsize < 0) {
216 char tmp_buf[sizeof(conn->error_info->error)];
217 int tmp_error_no;
218 *is_warning = TRUE;
219 DBG_ERR_FMT("Bufsize < 0, warning, %d %s %s", CR_SERVER_LOST, UNKNOWN_SQLSTATE, lost_conn);
220 tmp_error_no = infile.local_infile_error(info, tmp_buf, sizeof(tmp_buf) TSRMLS_CC);
221 SET_CLIENT_ERROR(*conn->error_info, tmp_error_no, UNKNOWN_SQLSTATE, tmp_buf);
222 goto infile_error;
223 }
224
225 result = PASS;
226
227 infile_error:
228 /* get response from server and update upsert values */
229 if (FAIL == conn->m->simple_command_handle_response(conn, PROT_OK_PACKET, FALSE, COM_QUERY, FALSE TSRMLS_CC)) {
230 result = FAIL;
231 }
232
233 (*conn->infile.local_infile_end)(info TSRMLS_CC);
234 if (buf) {
235 mnd_efree(buf);
236 }
237 DBG_INF_FMT("%s", result == PASS? "PASS":"FAIL");
238 DBG_RETURN(result);
239 }
240 /* }}} */
241
242 /*
243 * Local variables:
244 * tab-width: 4
245 * c-basic-offset: 4
246 * End:
247 * vim600: noet sw=4 ts=4 fdm=marker
248 * vim<600: noet sw=4 ts=4
249 */
250
