1 /*
2 +----------------------------------------------------------------------+
3 | PHP Version 5 |
4 +----------------------------------------------------------------------+
5 | Copyright (c) 1997-2013 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: Rasmus Lerdorf <rasmus@php.net> |
16 +----------------------------------------------------------------------+
17 */
18
19 /* $Id$ */
20
21 #include <stdlib.h>
22 #include <ctype.h>
23 #include <stdio.h>
24 #include "php.h"
25 #include "ext/standard/info.h"
26 #include "ext/standard/php_string.h"
27 #include "ext/standard/basic_functions.h"
28
29 #if HAVE_SYSEXITS_H
30 #include <sysexits.h>
31 #endif
32 #if HAVE_SYS_SYSEXITS_H
33 #include <sys/sysexits.h>
34 #endif
35
36 #if PHP_SIGCHILD
37 #if HAVE_SIGNAL_H
38 #include <signal.h>
39 #endif
40 #endif
41
42 #include "php_mail.h"
43 #include "php_ini.h"
44 #include "php_string.h"
45 #include "safe_mode.h"
46 #include "exec.h"
47
48 #ifdef PHP_WIN32
49 #include "win32/sendmail.h"
50 #endif
51
52 #ifdef NETWARE
53 #define EX_OK 0 /* successful termination */
54 #define EX_TEMPFAIL 75 /* temp failure; user is invited to retry */
55 #endif
56
57 #define SKIP_LONG_HEADER_SEP(str, pos) \
58 if (str[pos] == '\r' && str[pos + 1] == '\n' && (str[pos + 2] == ' ' || str[pos + 2] == '\t')) { \
59 pos += 2; \
60 while (str[pos + 1] == ' ' || str[pos + 1] == '\t') { \
61 pos++; \
62 } \
63 continue; \
64 } \
65
66 #define MAIL_ASCIIZ_CHECK(str, len) \
67 p = str; \
68 e = p + len; \
69 while ((p = memchr(p, '\0', (e - p)))) { \
70 *p = ' '; \
71 } \
72
73 extern long php_getuid(void);
74
75 /* {{{ proto int ezmlm_hash(string addr)
76 Calculate EZMLM list hash value. */
PHP_FUNCTION(ezmlm_hash)77 PHP_FUNCTION(ezmlm_hash)
78 {
79 char *str = NULL;
80 unsigned int h = 5381;
81 int j, str_len;
82
83 if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "s", &str, &str_len) == FAILURE) {
84 return;
85 }
86
87 for (j = 0; j < str_len; j++) {
88 h = (h + (h << 5)) ^ (unsigned long) (unsigned char) tolower(str[j]);
89 }
90
91 h = (h % 53);
92
93 RETURN_LONG((int) h);
94 }
95 /* }}} */
96
97 /* {{{ proto int mail(string to, string subject, string message [, string additional_headers [, string additional_parameters]])
98 Send an email message */
PHP_FUNCTION(mail)99 PHP_FUNCTION(mail)
100 {
101 char *to=NULL, *message=NULL, *headers=NULL, *headers_trimmed=NULL;
102 char *subject=NULL, *extra_cmd=NULL;
103 int to_len, message_len, headers_len = 0;
104 int subject_len, extra_cmd_len = 0, i;
105 char *force_extra_parameters = INI_STR("mail.force_extra_parameters");
106 char *to_r, *subject_r;
107 char *p, *e;
108
109 if (PG(safe_mode) && (ZEND_NUM_ARGS() == 5)) {
110 php_error_docref(NULL TSRMLS_CC, E_WARNING, "SAFE MODE Restriction in effect. The fifth parameter is disabled in SAFE MODE");
111 RETURN_FALSE;
112 }
113
114 if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "sss|ss", &to, &to_len, &subject, &subject_len, &message, &message_len,
115 &headers, &headers_len, &extra_cmd, &extra_cmd_len) == FAILURE
116 ) {
117 return;
118 }
119
120 /* ASCIIZ check */
121 MAIL_ASCIIZ_CHECK(to, to_len);
122 MAIL_ASCIIZ_CHECK(subject, subject_len);
123 MAIL_ASCIIZ_CHECK(message, message_len);
124 if (headers) {
125 MAIL_ASCIIZ_CHECK(headers, headers_len);
126 headers_trimmed = php_trim(headers, headers_len, NULL, 0, NULL, 2 TSRMLS_CC);
127 }
128 if (extra_cmd) {
129 MAIL_ASCIIZ_CHECK(extra_cmd, extra_cmd_len);
130 }
131
132 if (to_len > 0) {
133 to_r = estrndup(to, to_len);
134 for (; to_len; to_len--) {
135 if (!isspace((unsigned char) to_r[to_len - 1])) {
136 break;
137 }
138 to_r[to_len - 1] = '\0';
139 }
140 for (i = 0; to_r[i]; i++) {
141 if (iscntrl((unsigned char) to_r[i])) {
142 /* According to RFC 822, section 3.1.1 long headers may be separated into
143 * parts using CRLF followed at least one linear-white-space character ('\t' or ' ').
144 * To prevent these separators from being replaced with a space, we use the
145 * SKIP_LONG_HEADER_SEP to skip over them. */
146 SKIP_LONG_HEADER_SEP(to_r, i);
147 to_r[i] = ' ';
148 }
149 }
150 } else {
151 to_r = to;
152 }
153
154 if (subject_len > 0) {
155 subject_r = estrndup(subject, subject_len);
156 for (; subject_len; subject_len--) {
157 if (!isspace((unsigned char) subject_r[subject_len - 1])) {
158 break;
159 }
160 subject_r[subject_len - 1] = '\0';
161 }
162 for (i = 0; subject_r[i]; i++) {
163 if (iscntrl((unsigned char) subject_r[i])) {
164 SKIP_LONG_HEADER_SEP(subject_r, i);
165 subject_r[i] = ' ';
166 }
167 }
168 } else {
169 subject_r = subject;
170 }
171
172 if (force_extra_parameters) {
173 extra_cmd = php_escape_shell_cmd(force_extra_parameters);
174 } else if (extra_cmd) {
175 extra_cmd = php_escape_shell_cmd(extra_cmd);
176 }
177
178 if (php_mail(to_r, subject_r, message, headers_trimmed, extra_cmd TSRMLS_CC)) {
179 RETVAL_TRUE;
180 } else {
181 RETVAL_FALSE;
182 }
183
184 if (headers_trimmed) {
185 efree(headers_trimmed);
186 }
187
188 if (extra_cmd) {
189 efree (extra_cmd);
190 }
191 if (to_r != to) {
192 efree(to_r);
193 }
194 if (subject_r != subject) {
195 efree(subject_r);
196 }
197 }
198 /* }}} */
199
200 /* {{{ php_mail
201 */
php_mail(char * to,char * subject,char * message,char * headers,char * extra_cmd TSRMLS_DC)202 PHPAPI int php_mail(char *to, char *subject, char *message, char *headers, char *extra_cmd TSRMLS_DC)
203 {
204 #if (defined PHP_WIN32 || defined NETWARE)
205 int tsm_err;
206 char *tsm_errmsg = NULL;
207 #endif
208 FILE *sendmail;
209 int ret;
210 char *sendmail_path = INI_STR("sendmail_path");
211 char *sendmail_cmd = NULL;
212 char *mail_log = INI_STR("mail.log");
213 char *hdr = headers;
214 #if PHP_SIGCHILD
215 void (*sig_handler)() = NULL;
216 #endif
217
218 #define MAIL_RET(val) \
219 if (hdr != headers) { \
220 efree(hdr); \
221 } \
222 return val; \
223
224 if (mail_log && *mail_log) {
225 char *tmp;
226 int l = spprintf(&tmp, 0, "mail() on [%s:%d]: To: %s -- Headers: %s\n", zend_get_executed_filename(TSRMLS_C), zend_get_executed_lineno(TSRMLS_C), to, hdr ? hdr : "");
227 php_stream *stream = php_stream_open_wrapper(mail_log, "a", IGNORE_URL_WIN | REPORT_ERRORS | STREAM_DISABLE_OPEN_BASEDIR, NULL);
228
229 if (hdr) { /* find all \r\n instances and replace them with spaces, so a log line is always one line long */
230 char *p = tmp;
231 while ((p = strpbrk(p, "\r\n"))) {
232 *p = ' ';
233 }
234 tmp[l - 1] = '\n';
235 }
236 if (stream) {
237 php_stream_write(stream, tmp, l);
238 php_stream_close(stream);
239 }
240 efree(tmp);
241 }
242 if (PG(mail_x_header)) {
243 char *tmp = zend_get_executed_filename(TSRMLS_C);
244 char *f;
245 size_t f_len;
246
247 php_basename(tmp, strlen(tmp), NULL, 0,&f, &f_len TSRMLS_CC);
248
249 if (headers != NULL) {
250 spprintf(&hdr, 0, "X-PHP-Originating-Script: %ld:%s\n%s", php_getuid(), f, headers);
251 } else {
252 spprintf(&hdr, 0, "X-PHP-Originating-Script: %ld:%s\n", php_getuid(), f);
253 }
254 efree(f);
255 }
256
257 if (!sendmail_path) {
258 #if (defined PHP_WIN32 || defined NETWARE)
259 /* handle old style win smtp sending */
260 if (TSendMail(INI_STR("SMTP"), &tsm_err, &tsm_errmsg, hdr, subject, to, message, NULL, NULL, NULL TSRMLS_CC) == FAILURE) {
261 if (tsm_errmsg) {
262 php_error_docref(NULL TSRMLS_CC, E_WARNING, "%s", tsm_errmsg);
263 efree(tsm_errmsg);
264 } else {
265 php_error_docref(NULL TSRMLS_CC, E_WARNING, "%s", GetSMErrorText(tsm_err));
266 }
267 MAIL_RET(0);
268 }
269 MAIL_RET(1);
270 #else
271 MAIL_RET(0);
272 #endif
273 }
274 if (extra_cmd != NULL) {
275 spprintf(&sendmail_cmd, 0, "%s %s", sendmail_path, extra_cmd);
276 } else {
277 sendmail_cmd = sendmail_path;
278 }
279
280 #if PHP_SIGCHILD
281 /* Set signal handler of SIGCHLD to default to prevent other signal handlers
282 * from being called and reaping the return code when our child exits.
283 * The original handler needs to be restored after pclose() */
284 sig_handler = (void *)signal(SIGCHLD, SIG_DFL);
285 if (sig_handler == SIG_ERR) {
286 sig_handler = NULL;
287 }
288 #endif
289
290 #ifdef PHP_WIN32
291 sendmail = popen(sendmail_cmd, "wb");
292 #else
293 /* Since popen() doesn't indicate if the internal fork() doesn't work
294 * (e.g. the shell can't be executed) we explicitely set it to 0 to be
295 * sure we don't catch any older errno value. */
296 errno = 0;
297 sendmail = popen(sendmail_cmd, "w");
298 #endif
299 if (extra_cmd != NULL) {
300 efree (sendmail_cmd);
301 }
302
303 if (sendmail) {
304 #ifndef PHP_WIN32
305 if (EACCES == errno) {
306 php_error_docref(NULL TSRMLS_CC, E_WARNING, "Permission denied: unable to execute shell to run mail delivery binary '%s'", sendmail_path);
307 pclose(sendmail);
308 #if PHP_SIGCHILD
309 /* Restore handler in case of error on Windows
310 Not sure if this applicable on Win but just in case. */
311 if (sig_handler) {
312 signal(SIGCHLD, sig_handler);
313 }
314 #endif
315 MAIL_RET(0);
316 }
317 #endif
318 fprintf(sendmail, "To: %s\n", to);
319 fprintf(sendmail, "Subject: %s\n", subject);
320 if (hdr != NULL) {
321 fprintf(sendmail, "%s\n", hdr);
322 }
323 fprintf(sendmail, "\n%s\n", message);
324 ret = pclose(sendmail);
325
326 #if PHP_SIGCHILD
327 if (sig_handler) {
328 signal(SIGCHLD, sig_handler);
329 }
330 #endif
331
332 #ifdef PHP_WIN32
333 if (ret == -1)
334 #else
335 #if defined(EX_TEMPFAIL)
336 if ((ret != EX_OK)&&(ret != EX_TEMPFAIL))
337 #elif defined(EX_OK)
338 if (ret != EX_OK)
339 #else
340 if (ret != 0)
341 #endif
342 #endif
343 {
344 MAIL_RET(0);
345 } else {
346 MAIL_RET(1);
347 }
348 } else {
349 php_error_docref(NULL TSRMLS_CC, E_WARNING, "Could not execute mail delivery program '%s'", sendmail_path);
350 #if PHP_SIGCHILD
351 if (sig_handler) {
352 signal(SIGCHLD, sig_handler);
353 }
354 #endif
355 MAIL_RET(0);
356 }
357
358 MAIL_RET(1); /* never reached */
359 }
360 /* }}} */
361
362 /* {{{ PHP_MINFO_FUNCTION
363 */
PHP_MINFO_FUNCTION(mail)364 PHP_MINFO_FUNCTION(mail)
365 {
366 char *sendmail_path = INI_STR("sendmail_path");
367
368 #ifdef PHP_WIN32
369 if (!sendmail_path) {
370 php_info_print_table_row(2, "Internal Sendmail Support for Windows", "enabled");
371 } else {
372 php_info_print_table_row(2, "Path to sendmail", sendmail_path);
373 }
374 #else
375 php_info_print_table_row(2, "Path to sendmail", sendmail_path);
376 #endif
377 }
378 /* }}} */
379
380 /*
381 * Local variables:
382 * tab-width: 4
383 * c-basic-offset: 4
384 * End:
385 * vim600: sw=4 ts=4 fdm=marker
386 * vim<600: sw=4 ts=4
387 */
388
