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: Sascha Schumann <sascha@schumann.cx> |
16 +----------------------------------------------------------------------+
17 */
18
19 #define ZEND_INCLUDE_FULL_WINDOWS_HEADERS
20
21 #include "php.h"
22 #include "zend_smart_str.h"
23 #include "ext/standard/info.h"
24 #include "ext/standard/head.h"
25 #include "php_ini.h"
26 #include "SAPI.h"
27
28 #define CORE_PRIVATE
29 #include "apr_strings.h"
30 #include "apr_time.h"
31 #include "ap_config.h"
32 #include "util_filter.h"
33 #include "httpd.h"
34 #include "http_config.h"
35 #include "http_request.h"
36 #include "http_core.h"
37 #include "http_protocol.h"
38 #include "http_log.h"
39 #include "http_main.h"
40 #include "util_script.h"
41 #include "http_core.h"
42 #include "ap_mpm.h"
43 #ifndef PHP_WIN32
44 #include "unixd.h"
45 #endif
46
47 #include "php_apache.h"
48
49 #ifdef ZTS
50 int php_apache2_info_id;
51 #else
52 php_apache2_info_struct php_apache2_info;
53 #endif
54
55 #define SECTION(name) PUTS("<h2>" name "</h2>\n")
56
php_apache_lookup_uri(char * filename)57 static request_rec *php_apache_lookup_uri(char *filename)
58 {
59 php_struct *ctx = SG(server_context);
60
61 if (!filename || !ctx || !ctx->r) {
62 return NULL;
63 }
64
65 return ap_sub_req_lookup_uri(filename, ctx->r, ctx->r->output_filters);
66 }
67
68 /* {{{ proto bool virtual(string uri)
69 Perform an apache sub-request */
PHP_FUNCTION(virtual)70 PHP_FUNCTION(virtual)
71 {
72 char *filename;
73 size_t filename_len;
74 request_rec *rr;
75
76 if (zend_parse_parameters(ZEND_NUM_ARGS(), "p", &filename, &filename_len) == FAILURE) {
77 return;
78 }
79
80 if (!(rr = php_apache_lookup_uri(filename))) {
81 php_error_docref(NULL, E_WARNING, "Unable to include '%s' - URI lookup failed", filename);
82 RETURN_FALSE;
83 }
84
85 if (rr->status != HTTP_OK) {
86 php_error_docref(NULL, E_WARNING, "Unable to include '%s' - error finding URI", filename);
87 ap_destroy_sub_req(rr);
88 RETURN_FALSE;
89 }
90
91 /* Flush everything. */
92 php_output_end_all();
93 php_header();
94
95 /* Ensure that the ap_r* layer for the main request is flushed, to
96 * work around http://issues.apache.org/bugzilla/show_bug.cgi?id=17629 */
97 ap_rflush(rr->main);
98
99 if (ap_run_sub_req(rr)) {
100 php_error_docref(NULL, E_WARNING, "Unable to include '%s' - request execution failed", filename);
101 ap_destroy_sub_req(rr);
102 RETURN_FALSE;
103 }
104 ap_destroy_sub_req(rr);
105 RETURN_TRUE;
106 }
107 /* }}} */
108
109 #define ADD_LONG(name) \
110 add_property_long(return_value, #name, rr->name)
111 #define ADD_TIME(name) \
112 add_property_long(return_value, #name, apr_time_sec(rr->name));
113 #define ADD_STRING(name) \
114 if (rr->name) add_property_string(return_value, #name, (char *) rr->name)
115
PHP_FUNCTION(apache_lookup_uri)116 PHP_FUNCTION(apache_lookup_uri)
117 {
118 request_rec *rr;
119 char *filename;
120 size_t filename_len;
121
122 if (zend_parse_parameters(ZEND_NUM_ARGS(), "p", &filename, &filename_len) == FAILURE) {
123 return;
124 }
125
126 if (!(rr = php_apache_lookup_uri(filename))) {
127 php_error_docref(NULL, E_WARNING, "Unable to include '%s' - URI lookup failed", filename);
128 RETURN_FALSE;
129 }
130
131 if (rr->status == HTTP_OK) {
132 object_init(return_value);
133
134 ADD_LONG(status);
135 ADD_STRING(the_request);
136 ADD_STRING(status_line);
137 ADD_STRING(method);
138 ADD_TIME(mtime);
139 ADD_LONG(clength);
140 #if MODULE_MAGIC_NUMBER < 20020506
141 ADD_STRING(boundary);
142 #endif
143 ADD_STRING(range);
144 ADD_LONG(chunked);
145 ADD_STRING(content_type);
146 ADD_STRING(handler);
147 ADD_LONG(no_cache);
148 ADD_LONG(no_local_copy);
149 ADD_STRING(unparsed_uri);
150 ADD_STRING(uri);
151 ADD_STRING(filename);
152 ADD_STRING(path_info);
153 ADD_STRING(args);
154 ADD_LONG(allowed);
155 ADD_LONG(sent_bodyct);
156 ADD_LONG(bytes_sent);
157 ADD_LONG(mtime);
158 ADD_TIME(request_time);
159
160 ap_destroy_sub_req(rr);
161 return;
162 }
163
164 php_error_docref(NULL, E_WARNING, "Unable to include '%s' - error finding URI", filename);
165 ap_destroy_sub_req(rr);
166 RETURN_FALSE;
167 }
168
169 /* {{{ proto array getallheaders(void)
170 Fetch all HTTP request headers */
PHP_FUNCTION(apache_request_headers)171 PHP_FUNCTION(apache_request_headers)
172 {
173 php_struct *ctx;
174 const apr_array_header_t *arr;
175 char *key, *val;
176
177 if (zend_parse_parameters_none() == FAILURE) {
178 return;
179 }
180
181 array_init(return_value);
182
183 ctx = SG(server_context);
184 arr = apr_table_elts(ctx->r->headers_in);
185
186 APR_ARRAY_FOREACH_OPEN(arr, key, val)
187 if (!val) val = "";
188 add_assoc_string(return_value, key, val);
189 APR_ARRAY_FOREACH_CLOSE()
190 }
191 /* }}} */
192
193 /* {{{ proto array apache_response_headers(void)
194 Fetch all HTTP response headers */
PHP_FUNCTION(apache_response_headers)195 PHP_FUNCTION(apache_response_headers)
196 {
197 php_struct *ctx;
198 const apr_array_header_t *arr;
199 char *key, *val;
200
201 if (zend_parse_parameters_none() == FAILURE) {
202 return;
203 }
204
205 array_init(return_value);
206
207 ctx = SG(server_context);
208 arr = apr_table_elts(ctx->r->headers_out);
209
210 APR_ARRAY_FOREACH_OPEN(arr, key, val)
211 if (!val) val = "";
212 add_assoc_string(return_value, key, val);
213 APR_ARRAY_FOREACH_CLOSE()
214 }
215 /* }}} */
216
217 /* {{{ proto string apache_note(string note_name [, string note_value])
218 Get and set Apache request notes */
PHP_FUNCTION(apache_note)219 PHP_FUNCTION(apache_note)
220 {
221 php_struct *ctx;
222 char *note_name, *note_val = NULL;
223 size_t note_name_len, note_val_len;
224 char *old_note_val=NULL;
225
226 if (zend_parse_parameters(ZEND_NUM_ARGS(), "s|s", ¬e_name, ¬e_name_len, ¬e_val, ¬e_val_len) == FAILURE) {
227 return;
228 }
229
230 ctx = SG(server_context);
231
232 old_note_val = (char *) apr_table_get(ctx->r->notes, note_name);
233
234 if (note_val) {
235 apr_table_set(ctx->r->notes, note_name, note_val);
236 }
237
238 if (old_note_val) {
239 RETURN_STRING(old_note_val);
240 }
241
242 RETURN_FALSE;
243 }
244 /* }}} */
245
246
247 /* {{{ proto bool apache_setenv(string variable, string value [, bool walk_to_top])
248 Set an Apache subprocess_env variable */
249 /*
250 * XXX this doesn't look right. shouldn't it be the parent ?*/
PHP_FUNCTION(apache_setenv)251 PHP_FUNCTION(apache_setenv)
252 {
253 php_struct *ctx;
254 char *variable=NULL, *string_val=NULL;
255 size_t variable_len, string_val_len;
256 zend_bool walk_to_top = 0;
257 int arg_count = ZEND_NUM_ARGS();
258 request_rec *r;
259
260 if (zend_parse_parameters(arg_count, "ss|b", &variable, &variable_len, &string_val, &string_val_len, &walk_to_top) == FAILURE) {
261 return;
262 }
263
264 ctx = SG(server_context);
265
266 r = ctx->r;
267 if (arg_count == 3) {
268 if (walk_to_top) {
269 while(r->prev) {
270 r = r->prev;
271 }
272 }
273 }
274
275 apr_table_set(r->subprocess_env, variable, string_val);
276
277 RETURN_TRUE;
278 }
279 /* }}} */
280
281 /* {{{ proto bool apache_getenv(string variable [, bool walk_to_top])
282 Get an Apache subprocess_env variable */
283 /*
284 * XXX: shouldn't this be the parent not the 'prev'
285 */
PHP_FUNCTION(apache_getenv)286 PHP_FUNCTION(apache_getenv)
287 {
288 php_struct *ctx;
289 char *variable;
290 size_t variable_len;
291 zend_bool walk_to_top = 0;
292 int arg_count = ZEND_NUM_ARGS();
293 char *env_val=NULL;
294 request_rec *r;
295
296 if (zend_parse_parameters(arg_count, "s|b", &variable, &variable_len, &walk_to_top) == FAILURE) {
297 return;
298 }
299
300 ctx = SG(server_context);
301
302 r = ctx->r;
303 if (arg_count == 2) {
304 if (walk_to_top) {
305 while(r->prev) {
306 r = r->prev;
307 }
308 }
309 }
310
311 env_val = (char*) apr_table_get(r->subprocess_env, variable);
312
313 if (env_val != NULL) {
314 RETURN_STRING(env_val);
315 }
316
317 RETURN_FALSE;
318 }
319 /* }}} */
320
php_apache_get_version()321 static char *php_apache_get_version()
322 {
323 #if MODULE_MAGIC_NUMBER_MAJOR >= 20060905
324 return (char *) ap_get_server_banner();
325 #else
326 return (char *) ap_get_server_version();
327 #endif
328 }
329
330 /* {{{ proto string apache_get_version(void)
331 Fetch Apache version */
PHP_FUNCTION(apache_get_version)332 PHP_FUNCTION(apache_get_version)
333 {
334 char *apv = php_apache_get_version();
335
336 if (apv && *apv) {
337 RETURN_STRING(apv);
338 } else {
339 RETURN_FALSE;
340 }
341 }
342 /* }}} */
343
344 /* {{{ proto array apache_get_modules(void)
345 Get a list of loaded Apache modules */
PHP_FUNCTION(apache_get_modules)346 PHP_FUNCTION(apache_get_modules)
347 {
348 int n;
349 char *p;
350
351 array_init(return_value);
352
353 for (n = 0; ap_loaded_modules[n]; ++n) {
354 char *s = (char *) ap_loaded_modules[n]->name;
355 if ((p = strchr(s, '.'))) {
356 add_next_index_stringl(return_value, s, (p - s));
357 } else {
358 add_next_index_string(return_value, s);
359 }
360 }
361 }
362 /* }}} */
363
PHP_MINFO_FUNCTION(apache)364 PHP_MINFO_FUNCTION(apache)
365 {
366 char *apv = php_apache_get_version();
367 smart_str tmp1 = {0};
368 char tmp[1024];
369 int n, max_requests;
370 char *p;
371 server_rec *serv = ((php_struct *) SG(server_context))->r->server;
372 #ifndef PHP_WIN32
373 # if MODULE_MAGIC_NUMBER_MAJOR >= 20081201
374 AP_DECLARE_DATA extern unixd_config_rec ap_unixd_config;
375 # else
376 AP_DECLARE_DATA extern unixd_config_rec unixd_config;
377 # endif
378 #endif
379
380 for (n = 0; ap_loaded_modules[n]; ++n) {
381 char *s = (char *) ap_loaded_modules[n]->name;
382 if ((p = strchr(s, '.'))) {
383 smart_str_appendl(&tmp1, s, (p - s));
384 } else {
385 smart_str_appends(&tmp1, s);
386 }
387 smart_str_appendc(&tmp1, ' ');
388 }
389 if (tmp1.s) {
390 if (tmp1.s->len > 0) {
391 tmp1.s->val[tmp1.s->len - 1] = '\0';
392 } else {
393 tmp1.s->val[0] = '\0';
394 }
395 }
396
397 php_info_print_table_start();
398 if (apv && *apv) {
399 php_info_print_table_row(2, "Apache Version", apv);
400 }
401 snprintf(tmp, sizeof(tmp), "%d", MODULE_MAGIC_NUMBER);
402 php_info_print_table_row(2, "Apache API Version", tmp);
403
404 if (serv->server_admin && *(serv->server_admin)) {
405 php_info_print_table_row(2, "Server Administrator", serv->server_admin);
406 }
407
408 snprintf(tmp, sizeof(tmp), "%s:%u", serv->server_hostname, serv->port);
409 php_info_print_table_row(2, "Hostname:Port", tmp);
410
411 #ifndef PHP_WIN32
412 #if MODULE_MAGIC_NUMBER_MAJOR >= 20081201
413 snprintf(tmp, sizeof(tmp), "%s(%d)/%d", ap_unixd_config.user_name, ap_unixd_config.user_id, ap_unixd_config.group_id);
414 #else
415 snprintf(tmp, sizeof(tmp), "%s(%d)/%d", unixd_config.user_name, unixd_config.user_id, unixd_config.group_id);
416 #endif
417 php_info_print_table_row(2, "User/Group", tmp);
418 #endif
419
420 ap_mpm_query(AP_MPMQ_MAX_REQUESTS_DAEMON, &max_requests);
421 snprintf(tmp, sizeof(tmp), "Per Child: %d - Keep Alive: %s - Max Per Connection: %d", max_requests, (serv->keep_alive ? "on":"off"), serv->keep_alive_max);
422 php_info_print_table_row(2, "Max Requests", tmp);
423
424 apr_snprintf(tmp, sizeof tmp,
425 "Connection: %" APR_TIME_T_FMT " - Keep-Alive: %" APR_TIME_T_FMT,
426 apr_time_sec(serv->timeout), apr_time_sec(serv->keep_alive_timeout));
427 php_info_print_table_row(2, "Timeouts", tmp);
428
429 php_info_print_table_row(2, "Virtual Server", (serv->is_virtual ? "Yes" : "No"));
430 php_info_print_table_row(2, "Server Root", ap_server_root);
431 php_info_print_table_row(2, "Loaded Modules", tmp1.s->val);
432
433 smart_str_free(&tmp1);
434 php_info_print_table_end();
435
436 DISPLAY_INI_ENTRIES();
437
438 {
439 const apr_array_header_t *arr = apr_table_elts(((php_struct *) SG(server_context))->r->subprocess_env);
440 char *key, *val;
441
442 SECTION("Apache Environment");
443 php_info_print_table_start();
444 php_info_print_table_header(2, "Variable", "Value");
445 APR_ARRAY_FOREACH_OPEN(arr, key, val)
446 if (!val) {
447 val = "";
448 }
449 php_info_print_table_row(2, key, val);
450 APR_ARRAY_FOREACH_CLOSE()
451
452 php_info_print_table_end();
453
454 SECTION("HTTP Headers Information");
455 php_info_print_table_start();
456 php_info_print_table_colspan_header(2, "HTTP Request Headers");
457 php_info_print_table_row(2, "HTTP Request", ((php_struct *) SG(server_context))->r->the_request);
458
459 arr = apr_table_elts(((php_struct *) SG(server_context))->r->headers_in);
460 APR_ARRAY_FOREACH_OPEN(arr, key, val)
461 if (!val) {
462 val = "";
463 }
464 php_info_print_table_row(2, key, val);
465 APR_ARRAY_FOREACH_CLOSE()
466
467 php_info_print_table_colspan_header(2, "HTTP Response Headers");
468 arr = apr_table_elts(((php_struct *) SG(server_context))->r->headers_out);
469 APR_ARRAY_FOREACH_OPEN(arr, key, val)
470 if (!val) {
471 val = "";
472 }
473 php_info_print_table_row(2, key, val);
474 APR_ARRAY_FOREACH_CLOSE()
475
476 php_info_print_table_end();
477 }
478 }
479
480 /* {{{ arginfo */
481 ZEND_BEGIN_ARG_INFO_EX(arginfo_apache2handler_lookup_uri, 0, 0, 1)
482 ZEND_ARG_INFO(0, filename)
483 ZEND_END_ARG_INFO()
484
485 ZEND_BEGIN_ARG_INFO_EX(arginfo_apache2handler_virtual, 0, 0, 1)
486 ZEND_ARG_INFO(0, uri)
487 ZEND_END_ARG_INFO()
488
489 ZEND_BEGIN_ARG_INFO(arginfo_apache2handler_response_headers, 0)
490 ZEND_END_ARG_INFO()
491
492 ZEND_BEGIN_ARG_INFO(arginfo_apache2handler_getallheaders, 0)
493 ZEND_END_ARG_INFO()
494
495 ZEND_BEGIN_ARG_INFO_EX(arginfo_apache2handler_note, 0, 0, 1)
496 ZEND_ARG_INFO(0, note_name)
497 ZEND_ARG_INFO(0, note_value)
498 ZEND_END_ARG_INFO()
499
500 ZEND_BEGIN_ARG_INFO_EX(arginfo_apache2handler_setenv, 0, 0, 2)
501 ZEND_ARG_INFO(0, variable)
502 ZEND_ARG_INFO(0, value)
503 ZEND_ARG_INFO(0, walk_to_top)
504 ZEND_END_ARG_INFO()
505
506 ZEND_BEGIN_ARG_INFO_EX(arginfo_apache2handler_getenv, 0, 0, 1)
507 ZEND_ARG_INFO(0, variable)
508 ZEND_ARG_INFO(0, walk_to_top)
509 ZEND_END_ARG_INFO()
510
511 ZEND_BEGIN_ARG_INFO(arginfo_apache2handler_get_version, 0)
512 ZEND_END_ARG_INFO()
513
514 ZEND_BEGIN_ARG_INFO(arginfo_apache2handler_get_modules, 0)
515 ZEND_END_ARG_INFO()
516 /* }}} */
517
518 static const zend_function_entry apache_functions[] = {
519 PHP_FE(apache_lookup_uri, arginfo_apache2handler_lookup_uri)
520 PHP_FE(virtual, arginfo_apache2handler_virtual)
521 PHP_FE(apache_request_headers, arginfo_apache2handler_getallheaders)
522 PHP_FE(apache_response_headers, arginfo_apache2handler_response_headers)
523 PHP_FE(apache_setenv, arginfo_apache2handler_setenv)
524 PHP_FE(apache_getenv, arginfo_apache2handler_getenv)
525 PHP_FE(apache_note, arginfo_apache2handler_note)
526 PHP_FE(apache_get_version, arginfo_apache2handler_get_version)
527 PHP_FE(apache_get_modules, arginfo_apache2handler_get_modules)
528 PHP_FALIAS(getallheaders, apache_request_headers, arginfo_apache2handler_getallheaders)
529 {NULL, NULL, NULL}
530 };
531
532 PHP_INI_BEGIN()
533 STD_PHP_INI_ENTRY("xbithack", "0", PHP_INI_ALL, OnUpdateBool, xbithack, php_apache2_info_struct, php_apache2_info)
534 STD_PHP_INI_ENTRY("engine", "1", PHP_INI_ALL, OnUpdateBool, engine, php_apache2_info_struct, php_apache2_info)
535 STD_PHP_INI_ENTRY("last_modified", "0", PHP_INI_ALL, OnUpdateBool, last_modified, php_apache2_info_struct, php_apache2_info)
PHP_INI_END()536 PHP_INI_END()
537
538 static PHP_MINIT_FUNCTION(apache)
539 {
540 #ifdef ZTS
541 ts_allocate_id(&php_apache2_info_id, sizeof(php_apache2_info_struct), (ts_allocate_ctor) NULL, NULL);
542 #endif
543 REGISTER_INI_ENTRIES();
544 return SUCCESS;
545 }
546
PHP_MSHUTDOWN_FUNCTION(apache)547 static PHP_MSHUTDOWN_FUNCTION(apache)
548 {
549 UNREGISTER_INI_ENTRIES();
550 return SUCCESS;
551 }
552
553 zend_module_entry php_apache_module = {
554 STANDARD_MODULE_HEADER,
555 "apache2handler",
556 apache_functions,
557 PHP_MINIT(apache),
558 PHP_MSHUTDOWN(apache),
559 NULL,
560 NULL,
561 PHP_MINFO(apache),
562 NULL,
563 STANDARD_MODULE_PROPERTIES
564 };
565
566 /*
567 * Local variables:
568 * tab-width: 4
569 * c-basic-offset: 4
570 * End:
571 * vim600: sw=4 ts=4 fdm=marker
572 * vim<600: sw=4 ts=4
573 */
574
