1 /*
2 +----------------------------------------------------------------------+
3 | PHP Version 5 |
4 +----------------------------------------------------------------------+
5 | Copyright (c) 1997-2015 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 | Author: Rasmus Lerdorf <rasmus@lerdorf.on.ca> |
16 +----------------------------------------------------------------------+
17 */
18 /* $Id$ */
19
20 #include <stdio.h>
21 #include "php.h"
22 #include "ext/standard/php_standard.h"
23 #include "ext/date/php_date.h"
24 #include "SAPI.h"
25 #include "php_main.h"
26 #include "head.h"
27 #ifdef TM_IN_SYS_TIME
28 #include <sys/time.h>
29 #else
30 #include <time.h>
31 #endif
32
33 #include "php_globals.h"
34
35
36 /* Implementation of the language Header() function */
37 /* {{{ proto void header(string header [, bool replace, [int http_response_code]])
38 Sends a raw HTTP header */
PHP_FUNCTION(header)39 PHP_FUNCTION(header)
40 {
41 zend_bool rep = 1;
42 sapi_header_line ctr = {0};
43
44 if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "s|bl", &ctr.line,
45 &ctr.line_len, &rep, &ctr.response_code) == FAILURE)
46 return;
47
48 sapi_header_op(rep ? SAPI_HEADER_REPLACE:SAPI_HEADER_ADD, &ctr TSRMLS_CC);
49 }
50 /* }}} */
51
52 /* {{{ proto void header_remove([string name])
53 Removes an HTTP header previously set using header() */
PHP_FUNCTION(header_remove)54 PHP_FUNCTION(header_remove)
55 {
56 sapi_header_line ctr = {0};
57
58 if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "|s", &ctr.line,
59 &ctr.line_len) == FAILURE)
60 return;
61
62 sapi_header_op(ZEND_NUM_ARGS() == 0 ? SAPI_HEADER_DELETE_ALL : SAPI_HEADER_DELETE, &ctr TSRMLS_CC);
63 }
64 /* }}} */
65
php_header(TSRMLS_D)66 PHPAPI int php_header(TSRMLS_D)
67 {
68 if (sapi_send_headers(TSRMLS_C)==FAILURE || SG(request_info).headers_only) {
69 return 0; /* don't allow output */
70 } else {
71 return 1; /* allow output */
72 }
73 }
74
75
php_setcookie(char * name,int name_len,char * value,int value_len,time_t expires,char * path,int path_len,char * domain,int domain_len,int secure,int url_encode,int httponly TSRMLS_DC)76 PHPAPI int php_setcookie(char *name, int name_len, char *value, int value_len, time_t expires, char *path, int path_len, char *domain, int domain_len, int secure, int url_encode, int httponly TSRMLS_DC)
77 {
78 char *cookie, *encoded_value = NULL;
79 int len=sizeof("Set-Cookie: ");
80 char *dt;
81 sapi_header_line ctr = {0};
82 int result;
83
84 if (name && strpbrk(name, "=,; \t\r\n\013\014") != NULL) { /* man isspace for \013 and \014 */
85 zend_error( E_WARNING, "Cookie names cannot contain any of the following '=,; \\t\\r\\n\\013\\014'" );
86 return FAILURE;
87 }
88
89 if (!url_encode && value && strpbrk(value, ",; \t\r\n\013\014") != NULL) { /* man isspace for \013 and \014 */
90 zend_error( E_WARNING, "Cookie values cannot contain any of the following ',; \\t\\r\\n\\013\\014'" );
91 return FAILURE;
92 }
93
94 len += name_len;
95 if (value && url_encode) {
96 int encoded_value_len;
97
98 encoded_value = php_url_encode(value, value_len, &encoded_value_len);
99 len += encoded_value_len;
100 } else if ( value ) {
101 encoded_value = estrdup(value);
102 len += value_len;
103 }
104 if (path) {
105 len += path_len;
106 }
107 if (domain) {
108 len += domain_len;
109 }
110
111 cookie = emalloc(len + 100);
112
113 if (value && value_len == 0) {
114 /*
115 * MSIE doesn't delete a cookie when you set it to a null value
116 * so in order to force cookies to be deleted, even on MSIE, we
117 * pick an expiry date in the past
118 */
119 dt = php_format_date("D, d-M-Y H:i:s T", sizeof("D, d-M-Y H:i:s T")-1, 1, 0 TSRMLS_CC);
120 snprintf(cookie, len + 100, "Set-Cookie: %s=deleted; expires=%s; Max-Age=0", name, dt);
121 efree(dt);
122 } else {
123 snprintf(cookie, len + 100, "Set-Cookie: %s=%s", name, value ? encoded_value : "");
124 if (expires > 0) {
125 const char *p;
126 char tsdelta[13];
127 strlcat(cookie, "; expires=", len + 100);
128 dt = php_format_date("D, d-M-Y H:i:s T", sizeof("D, d-M-Y H:i:s T")-1, expires, 0 TSRMLS_CC);
129 /* check to make sure that the year does not exceed 4 digits in length */
130 p = zend_memrchr(dt, '-', strlen(dt));
131 if (!p || *(p + 5) != ' ') {
132 efree(dt);
133 efree(cookie);
134 efree(encoded_value);
135 zend_error(E_WARNING, "Expiry date cannot have a year greater than 9999");
136 return FAILURE;
137 }
138 strlcat(cookie, dt, len + 100);
139 efree(dt);
140
141 snprintf(tsdelta, sizeof(tsdelta), "%li", (long) difftime(expires, time(NULL)));
142 strlcat(cookie, "; Max-Age=", len + 100);
143 strlcat(cookie, tsdelta, len + 100);
144 }
145 }
146
147 if (encoded_value) {
148 efree(encoded_value);
149 }
150
151 if (path && path_len > 0) {
152 strlcat(cookie, "; path=", len + 100);
153 strlcat(cookie, path, len + 100);
154 }
155 if (domain && domain_len > 0) {
156 strlcat(cookie, "; domain=", len + 100);
157 strlcat(cookie, domain, len + 100);
158 }
159 if (secure) {
160 strlcat(cookie, "; secure", len + 100);
161 }
162 if (httponly) {
163 strlcat(cookie, "; httponly", len + 100);
164 }
165
166 ctr.line = cookie;
167 ctr.line_len = strlen(cookie);
168
169 result = sapi_header_op(SAPI_HEADER_ADD, &ctr TSRMLS_CC);
170 efree(cookie);
171 return result;
172 }
173
174
175 /* php_set_cookie(name, value, expires, path, domain, secure) */
176 /* {{{ proto bool setcookie(string name [, string value [, int expires [, string path [, string domain [, bool secure[, bool httponly]]]]]])
177 Send a cookie */
PHP_FUNCTION(setcookie)178 PHP_FUNCTION(setcookie)
179 {
180 char *name, *value = NULL, *path = NULL, *domain = NULL;
181 long expires = 0;
182 zend_bool secure = 0, httponly = 0;
183 int name_len, value_len = 0, path_len = 0, domain_len = 0;
184
185 if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "s|slssbb", &name,
186 &name_len, &value, &value_len, &expires, &path,
187 &path_len, &domain, &domain_len, &secure, &httponly) == FAILURE) {
188 return;
189 }
190
191 if (php_setcookie(name, name_len, value, value_len, expires, path, path_len, domain, domain_len, secure, 1, httponly TSRMLS_CC) == SUCCESS) {
192 RETVAL_TRUE;
193 } else {
194 RETVAL_FALSE;
195 }
196 }
197 /* }}} */
198
199 /* {{{ proto bool setrawcookie(string name [, string value [, int expires [, string path [, string domain [, bool secure[, bool httponly]]]]]])
200 Send a cookie with no url encoding of the value */
PHP_FUNCTION(setrawcookie)201 PHP_FUNCTION(setrawcookie)
202 {
203 char *name, *value = NULL, *path = NULL, *domain = NULL;
204 long expires = 0;
205 zend_bool secure = 0, httponly = 0;
206 int name_len, value_len = 0, path_len = 0, domain_len = 0;
207
208 if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "s|slssbb", &name,
209 &name_len, &value, &value_len, &expires, &path,
210 &path_len, &domain, &domain_len, &secure, &httponly) == FAILURE) {
211 return;
212 }
213
214 if (php_setcookie(name, name_len, value, value_len, expires, path, path_len, domain, domain_len, secure, 0, httponly TSRMLS_CC) == SUCCESS) {
215 RETVAL_TRUE;
216 } else {
217 RETVAL_FALSE;
218 }
219 }
220 /* }}} */
221
222
223 /* {{{ proto bool headers_sent([string &$file [, int &$line]])
224 Returns true if headers have already been sent, false otherwise */
PHP_FUNCTION(headers_sent)225 PHP_FUNCTION(headers_sent)
226 {
227 zval *arg1 = NULL, *arg2 = NULL;
228 const char *file="";
229 int line=0;
230
231 if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "|zz", &arg1, &arg2) == FAILURE)
232 return;
233
234 if (SG(headers_sent)) {
235 line = php_output_get_start_lineno(TSRMLS_C);
236 file = php_output_get_start_filename(TSRMLS_C);
237 }
238
239 switch(ZEND_NUM_ARGS()) {
240 case 2:
241 zval_dtor(arg2);
242 ZVAL_LONG(arg2, line);
243 case 1:
244 zval_dtor(arg1);
245 if (file) {
246 ZVAL_STRING(arg1, file, 1);
247 } else {
248 ZVAL_STRING(arg1, "", 1);
249 }
250 break;
251 }
252
253 if (SG(headers_sent)) {
254 RETURN_TRUE;
255 } else {
256 RETURN_FALSE;
257 }
258 }
259 /* }}} */
260
261 /* {{{ php_head_apply_header_list_to_hash
262 Turn an llist of sapi_header_struct headers into a numerically indexed zval hash */
php_head_apply_header_list_to_hash(void * data,void * arg TSRMLS_DC)263 static void php_head_apply_header_list_to_hash(void *data, void *arg TSRMLS_DC)
264 {
265 sapi_header_struct *sapi_header = (sapi_header_struct *)data;
266
267 if (arg && sapi_header) {
268 add_next_index_string((zval *)arg, (char *)(sapi_header->header), 1);
269 }
270 }
271
272 /* {{{ proto array headers_list(void)
273 Return list of headers to be sent / already sent */
PHP_FUNCTION(headers_list)274 PHP_FUNCTION(headers_list)
275 {
276 if (zend_parse_parameters_none() == FAILURE) {
277 return;
278 }
279
280 array_init(return_value);
281 zend_llist_apply_with_argument(&SG(sapi_headers).headers, php_head_apply_header_list_to_hash, return_value TSRMLS_CC);
282 }
283 /* }}} */
284
285 /* {{{ proto long http_response_code([int response_code])
286 Sets a response code, or returns the current HTTP response code */
PHP_FUNCTION(http_response_code)287 PHP_FUNCTION(http_response_code)
288 {
289 long response_code = 0;
290
291 if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "|l", &response_code) == FAILURE) {
292 return;
293 }
294
295 if (response_code)
296 {
297 long old_response_code;
298
299 old_response_code = SG(sapi_headers).http_response_code;
300 SG(sapi_headers).http_response_code = response_code;
301
302 if (old_response_code) {
303 RETURN_LONG(old_response_code);
304 }
305
306 RETURN_TRUE;
307 }
308
309 if (!SG(sapi_headers).http_response_code) {
310 RETURN_FALSE;
311 }
312
313 RETURN_LONG(SG(sapi_headers).http_response_code);
314 }
315 /* }}} */
316
317 /*
318 * Local variables:
319 * tab-width: 4
320 * c-basic-offset: 4
321 * vim600: sw=4 ts=4 fdm=marker
322 * vim<600: sw=4 ts=4 * End:
323 */
324
