xref: /PHP-8.3/sapi/cli/php_cli_server.c (revision 299c3ba8)
1 /*
2    +----------------------------------------------------------------------+
3    | Copyright (c) The PHP Group                                          |
4    +----------------------------------------------------------------------+
5    | This source file is subject to version 3.01 of the PHP license,      |
6    | that is bundled with this package in the file LICENSE, and is        |
7    | available through the world-wide-web at the following url:           |
8    | https://www.php.net/license/3_01.txt                                 |
9    | If you did not receive a copy of the PHP license and are unable to   |
10    | obtain it through the world-wide-web, please send a note to          |
11    | license@php.net so we can mail you a copy immediately.               |
12    +----------------------------------------------------------------------+
13    | Author: Moriyoshi Koizumi <moriyoshi@php.net>                        |
14    |         Xinchen Hui       <laruence@php.net>                         |
15    +----------------------------------------------------------------------+
16 */
17 
18 #include <stdio.h>
19 #include <stdlib.h>
20 #include <fcntl.h>
21 #include <assert.h>
22 #include <signal.h>
23 
24 #ifdef PHP_WIN32
25 # include <process.h>
26 # include <io.h>
27 # include "win32/time.h"
28 # include "win32/signal.h"
29 # include "win32/php_registry.h"
30 # include <sys/timeb.h>
31 #else
32 # include "php_config.h"
33 #endif
34 
35 #ifdef __riscos__
36 #include <unixlib/local.h>
37 #endif
38 
39 #if HAVE_SYS_TIME_H
40 #include <sys/time.h>
41 #endif
42 #if HAVE_UNISTD_H
43 #include <unistd.h>
44 #endif
45 
46 #include <signal.h>
47 #include <locale.h>
48 
49 #if HAVE_DLFCN_H
50 #include <dlfcn.h>
51 #endif
52 
53 #ifdef HAVE_PRCTL
54 # include <sys/prctl.h>
55 #endif
56 
57 #ifdef HAVE_PROCCTL
58 # include <sys/procctl.h>
59 #endif
60 
61 #include "SAPI.h"
62 #include "php.h"
63 #include "php_ini.h"
64 #include "php_main.h"
65 #include "php_globals.h"
66 #include "php_variables.h"
67 #include "zend_hash.h"
68 #include "zend_modules.h"
69 #include "fopen_wrappers.h"
70 #include "http_status_codes.h"
71 
72 #include "zend_compile.h"
73 #include "zend_execute.h"
74 #include "zend_highlight.h"
75 #include "zend_exceptions.h"
76 
77 #include "php_getopt.h"
78 
79 #ifndef PHP_WIN32
80 # define php_select(m, r, w, e, t)	select(m, r, w, e, t)
81 # define SOCK_EINVAL EINVAL
82 # define SOCK_EAGAIN EAGAIN
83 # define SOCK_EINTR EINTR
84 # define SOCK_EADDRINUSE EADDRINUSE
85 #else
86 # include "win32/select.h"
87 # define SOCK_EINVAL WSAEINVAL
88 # define SOCK_EAGAIN WSAEWOULDBLOCK
89 # define SOCK_EINTR WSAEINTR
90 # define SOCK_EADDRINUSE WSAEADDRINUSE
91 #endif
92 
93 #include "ext/standard/file.h" /* for php_set_sock_blocking() :-( */
94 #include "zend_smart_str.h"
95 #include "ext/standard/html.h"
96 #include "ext/standard/url.h" /* for php_raw_url_decode() */
97 #include "ext/standard/php_string.h" /* for php_dirname() */
98 #include "ext/date/php_date.h" /* for php_format_date() */
99 #include "php_network.h"
100 
101 #include "php_http_parser.h"
102 #include "php_cli_server.h"
103 #include "php_cli_server_arginfo.h"
104 #include "mime_type_map.h"
105 
106 #include "php_cli_process_title.h"
107 #include "php_cli_process_title_arginfo.h"
108 
109 #define OUTPUT_NOT_CHECKED -1
110 #define OUTPUT_IS_TTY 1
111 #define OUTPUT_NOT_TTY 0
112 
113 #if HAVE_FORK
114 # include <sys/wait.h>
115 static pid_t	 php_cli_server_master;
116 static pid_t	*php_cli_server_workers;
117 static zend_long php_cli_server_workers_max;
118 #endif
119 
120 static zend_string* cli_concat_persistent_zstr_with_char(zend_string *old_str, const char *at, size_t length);
121 
122 typedef struct php_cli_server_poller {
123 	fd_set rfds, wfds;
124 	struct {
125 		fd_set rfds, wfds;
126 	} active;
127 	php_socket_t max_fd;
128 } php_cli_server_poller;
129 
130 typedef struct php_cli_server_request {
131 	enum php_http_method request_method;
132 	int protocol_version;
133 	zend_string *request_uri;
134 	char *vpath;
135 	size_t vpath_len;
136 	char *path_translated;
137 	size_t path_translated_len;
138 	char *path_info;
139 	size_t path_info_len;
140 	char *query_string;
141 	size_t query_string_len;
142 	HashTable headers;
143 	HashTable headers_original_case;
144 	char *content;
145 	size_t content_len;
146 	const char *ext;
147 	size_t ext_len;
148 	zend_stat_t sb;
149 } php_cli_server_request;
150 
151 typedef struct php_cli_server_chunk {
152 	struct php_cli_server_chunk *next;
153 	enum php_cli_server_chunk_type {
154 		PHP_CLI_SERVER_CHUNK_HEAP,
155 		PHP_CLI_SERVER_CHUNK_IMMORTAL
156 	} type;
157 	union {
158 		struct { void *block; char *p; size_t len; } heap;
159 		struct { const char *p; size_t len; } immortal;
160 	} data;
161 } php_cli_server_chunk;
162 
163 typedef struct php_cli_server_buffer {
164 	php_cli_server_chunk *first;
165 	php_cli_server_chunk *last;
166 } php_cli_server_buffer;
167 
168 typedef struct php_cli_server_content_sender {
169 	php_cli_server_buffer buffer;
170 } php_cli_server_content_sender;
171 
172 typedef struct php_cli_server_client {
173 	struct php_cli_server *server;
174 	php_socket_t sock;
175 	struct sockaddr *addr;
176 	socklen_t addr_len;
177 	zend_string *addr_str;
178 	php_http_parser parser;
179 	bool request_read;
180 	zend_string *current_header_name;
181 	zend_string *current_header_value;
182 	enum { HEADER_NONE=0, HEADER_FIELD, HEADER_VALUE } last_header_element;
183 	size_t post_read_offset;
184 	php_cli_server_request request;
185 	bool content_sender_initialized;
186 	php_cli_server_content_sender content_sender;
187 	int file_fd;
188 } php_cli_server_client;
189 
190 typedef struct php_cli_server {
191 	php_socket_t server_sock;
192 	php_cli_server_poller poller;
193 	int is_running;
194 	char *host;
195 	int port;
196 	int address_family;
197 	char *document_root;
198 	size_t document_root_len;
199 	char *router;
200 	size_t router_len;
201 	socklen_t socklen;
202 	HashTable clients;
203 	HashTable extension_mime_types;
204 } php_cli_server;
205 
206 typedef struct php_cli_server_http_response_status_code_pair {
207 	int code;
208 	const char *str;
209 } php_cli_server_http_response_status_code_pair;
210 
211 static const php_cli_server_http_response_status_code_pair template_map[] = {
212 	{ 400, "<h1>%s</h1><p>Your browser sent a request that this server could not understand.</p>" },
213 	{ 404, "<h1>%s</h1><p>The requested resource <code class=\"url\">%s</code> was not found on this server.</p>" },
214 	{ 405, "<h1>%s</h1><p>Requested method not allowed.</p>" },
215 	{ 500, "<h1>%s</h1><p>The server is temporarily unavailable.</p>" },
216 	{ 501, "<h1>%s</h1><p>Request method not supported.</p>" }
217 };
218 
219 #define PHP_CLI_SERVER_LOG_PROCESS 1
220 #define PHP_CLI_SERVER_LOG_ERROR   2
221 #define PHP_CLI_SERVER_LOG_MESSAGE 3
222 
223 static int php_cli_server_log_level = 3;
224 
225 #if HAVE_UNISTD_H || defined(PHP_WIN32)
226 static int php_cli_output_is_tty = OUTPUT_NOT_CHECKED;
227 #endif
228 
229 static const char php_cli_server_request_error_unexpected_eof[] = "Unexpected EOF";
230 
231 static size_t php_cli_server_client_send_through(php_cli_server_client *client, const char *str, size_t str_len);
232 static php_cli_server_chunk *php_cli_server_chunk_heap_new_self_contained(size_t len);
233 static void php_cli_server_buffer_append(php_cli_server_buffer *buffer, php_cli_server_chunk *chunk);
234 static void php_cli_server_logf(int type, const char *format, ...);
235 static void php_cli_server_log_response(php_cli_server_client *client, int status, const char *message);
236 
237 ZEND_DECLARE_MODULE_GLOBALS(cli_server)
238 
239 /* {{{ static char php_cli_server_css[]
240  * copied from ext/standard/info.c
241  */
242 static const char php_cli_server_css[] = "<style>\n" \
243 										"body { background-color: #fcfcfc; color: #333333; margin: 0; padding:0; }\n" \
244 										"h1 { font-size: 1.5em; font-weight: normal; background-color: #9999cc; min-height:2em; line-height:2em; border-bottom: 1px inset black; margin: 0; }\n" \
245 										"h1, p { padding-left: 10px; }\n" \
246 										"code.url { background-color: #eeeeee; font-family:monospace; padding:0 2px;}\n" \
247 										"</style>\n";
248 /* }}} */
249 
250 #ifdef PHP_WIN32
php_cli_server_get_system_time(char * buf)251 static bool php_cli_server_get_system_time(char *buf) {
252 	struct _timeb system_time;
253 	errno_t err;
254 
255 	if (buf == NULL) {
256 		return false;
257 	}
258 
259 	_ftime(&system_time);
260 	err = ctime_s(buf, 52, &(system_time.time) );
261 	if (err) {
262 		return false;
263 	}
264 	return true;
265 }
266 #else
php_cli_server_get_system_time(char * buf)267 static bool php_cli_server_get_system_time(char *buf) {
268 	struct timeval tv;
269 	struct tm tm;
270 
271 	gettimeofday(&tv, NULL);
272 
273 	if (!php_localtime_r(&tv.tv_sec, &tm)) {
274 		return false;
275 	}
276 	return php_asctime_r(&tm, buf) != NULL;
277 }
278 #endif
279 
280 /* Destructor for php_cli_server_request->headers, this frees header value */
cli_header_value_dtor(zval * zv)281 static void cli_header_value_dtor(zval *zv) /* {{{ */
282 {
283 	zend_string_release_ex(Z_STR_P(zv), /* persistent */ true);
284 } /* }}} */
285 
get_last_error(void)286 static char *get_last_error(void) /* {{{ */
287 {
288 	return pestrdup(strerror(errno), 1);
289 } /* }}} */
290 
status_comp(const void * a,const void * b)291 static int status_comp(const void *a, const void *b) /* {{{ */
292 {
293 	const http_response_status_code_pair *pa = (const http_response_status_code_pair *) a;
294 	const http_response_status_code_pair *pb = (const http_response_status_code_pair *) b;
295 
296 	if (pa->code < pb->code) {
297 		return -1;
298 	} else if (pa->code > pb->code) {
299 		return 1;
300 	}
301 
302 	return 0;
303 } /* }}} */
304 
get_status_string(int code)305 static const char *get_status_string(int code) /* {{{ */
306 {
307 	http_response_status_code_pair needle = {code, NULL},
308 		*result = NULL;
309 
310 	result = bsearch(&needle, http_status_map, http_status_map_len, sizeof(needle), status_comp);
311 
312 	if (result) {
313 		return result->str;
314 	}
315 
316 	/* Returning NULL would require complicating append_http_status_line() to
317 	 * not segfault in that case, so let's just return a placeholder, since RFC
318 	 * 2616 requires a reason phrase. This is basically what a lot of other Web
319 	 * servers do in this case anyway. */
320 	return "Unknown Status Code";
321 } /* }}} */
322 
get_template_string(int code)323 static const char *get_template_string(int code) /* {{{ */
324 {
325 	size_t e = (sizeof(template_map) / sizeof(php_cli_server_http_response_status_code_pair));
326 	size_t s = 0;
327 
328 	while (e != s) {
329 		size_t c = MIN((e + s + 1) / 2, e - 1);
330 		int d = template_map[c].code;
331 		if (d > code) {
332 			e = c;
333 		} else if (d < code) {
334 			s = c;
335 		} else {
336 			return template_map[c].str;
337 		}
338 	}
339 	return NULL;
340 } /* }}} */
341 
append_http_status_line(smart_str * buffer,int protocol_version,int response_code,bool persistent)342 static void append_http_status_line(smart_str *buffer, int protocol_version, int response_code, bool persistent) /* {{{ */
343 {
344 	if (!response_code) {
345 		response_code = 200;
346 	}
347 	smart_str_appendl_ex(buffer, "HTTP", 4, persistent);
348 	smart_str_appendc_ex(buffer, '/', persistent);
349 	smart_str_append_long_ex(buffer, protocol_version / 100, persistent);
350 	smart_str_appendc_ex(buffer, '.', persistent);
351 	smart_str_append_long_ex(buffer, protocol_version % 100, persistent);
352 	smart_str_appendc_ex(buffer, ' ', persistent);
353 	smart_str_append_long_ex(buffer, response_code, persistent);
354 	smart_str_appendc_ex(buffer, ' ', persistent);
355 	smart_str_appends_ex(buffer, get_status_string(response_code), persistent);
356 	smart_str_appendl_ex(buffer, "\r\n", 2, persistent);
357 } /* }}} */
358 
append_essential_headers(smart_str * buffer,php_cli_server_client * client,bool persistent,sapi_headers_struct * sapi_headers)359 static void append_essential_headers(smart_str* buffer, php_cli_server_client *client, bool persistent, sapi_headers_struct *sapi_headers) /* {{{ */
360 {
361 	zval *val;
362 	struct timeval tv = {0};
363 	bool append_date_header = true;
364 
365 	if (sapi_headers != NULL) {
366 		zend_llist_position pos;
367 		sapi_header_struct *h = (sapi_header_struct*)zend_llist_get_first_ex(&sapi_headers->headers, &pos);
368 		while (h) {
369 			if (h->header_len > strlen("Date:")) {
370 				if (strncasecmp(h->header, "Date:", strlen("Date:")) == 0) {
371 					append_date_header = false;
372 					break;
373 				}
374 			}
375 			h = (sapi_header_struct*)zend_llist_get_next_ex(&sapi_headers->headers, &pos);
376 		}
377 	}
378 
379 	if (NULL != (val = zend_hash_find(&client->request.headers, ZSTR_KNOWN(ZEND_STR_HOST)))) {
380 		smart_str_appends_ex(buffer, "Host: ", persistent);
381 		smart_str_append_ex(buffer, Z_STR_P(val), persistent);
382 		smart_str_appends_ex(buffer, "\r\n", persistent);
383 	}
384 
385 	if (append_date_header && !gettimeofday(&tv, NULL)) {
386 		zend_string *dt = php_format_date("D, d M Y H:i:s", sizeof("D, d M Y H:i:s") - 1, tv.tv_sec, 0);
387 		smart_str_appends_ex(buffer, "Date: ", persistent);
388 		smart_str_append_ex(buffer, dt, persistent);
389 		smart_str_appends_ex(buffer, " GMT\r\n", persistent);
390 		zend_string_release_ex(dt, 0);
391 	}
392 
393 	smart_str_appendl_ex(buffer, "Connection: close\r\n", sizeof("Connection: close\r\n") - 1, persistent);
394 } /* }}} */
395 
get_mime_type(const php_cli_server * server,const char * ext,size_t ext_len)396 static const char *get_mime_type(const php_cli_server *server, const char *ext, size_t ext_len) /* {{{ */
397 {
398 	char *ret;
399 	ALLOCA_FLAG(use_heap)
400 	char *ext_lower = do_alloca(ext_len + 1, use_heap);
401 	zend_str_tolower_copy(ext_lower, ext, ext_len);
402 	ret = zend_hash_str_find_ptr(&server->extension_mime_types, ext_lower, ext_len);
403 	free_alloca(ext_lower, use_heap);
404 	return (const char*)ret;
405 } /* }}} */
406 
PHP_FUNCTION(apache_request_headers)407 PHP_FUNCTION(apache_request_headers) /* {{{ */
408 {
409 	php_cli_server_client *client;
410 
411 	if (zend_parse_parameters_none() == FAILURE) {
412 		RETURN_THROWS();
413 	}
414 
415 	client = SG(server_context);
416 
417 	/* Need to duplicate the header HashTable */
418 	RETURN_ARR(zend_array_dup(&client->request.headers_original_case));
419 }
420 /* }}} */
421 
add_response_header(sapi_header_struct * h,zval * return_value)422 static void add_response_header(sapi_header_struct *h, zval *return_value) /* {{{ */
423 {
424 	char *s, *p;
425 	ptrdiff_t  len;
426 	ALLOCA_FLAG(use_heap)
427 
428 	if (h->header_len > 0) {
429 		p = strchr(h->header, ':');
430 		len = p - h->header;
431 		if (p && (len > 0)) {
432 			while (len > 0 && (h->header[len-1] == ' ' || h->header[len-1] == '\t')) {
433 				len--;
434 			}
435 			if (len) {
436 				s = do_alloca(len + 1, use_heap);
437 				memcpy(s, h->header, len);
438 				s[len] = 0;
439 				do {
440 					p++;
441 				} while (*p == ' ' || *p == '\t');
442 				add_assoc_stringl_ex(return_value, s, (uint32_t)len, p, h->header_len - (p - h->header));
443 				free_alloca(s, use_heap);
444 			}
445 		}
446 	}
447 }
448 /* }}} */
449 
PHP_FUNCTION(apache_response_headers)450 PHP_FUNCTION(apache_response_headers) /* {{{ */
451 {
452 	if (zend_parse_parameters_none() == FAILURE) {
453 		RETURN_THROWS();
454 	}
455 
456 	array_init(return_value);
457 	zend_llist_apply_with_argument(&SG(sapi_headers).headers, (llist_apply_with_arg_func_t)add_response_header, return_value);
458 }
459 /* }}} */
460 
461 /* {{{ cli_server module */
462 
cli_server_init_globals(zend_cli_server_globals * cg)463 static void cli_server_init_globals(zend_cli_server_globals *cg)
464 {
465 	cg->color = 0;
466 }
467 
468 PHP_INI_BEGIN()
469 	STD_PHP_INI_BOOLEAN("cli_server.color", "0", PHP_INI_ALL, OnUpdateBool, color, zend_cli_server_globals, cli_server_globals)
PHP_INI_END()470 PHP_INI_END()
471 
472 static PHP_MINIT_FUNCTION(cli_server)
473 {
474 	ZEND_INIT_MODULE_GLOBALS(cli_server, cli_server_init_globals, NULL);
475 	REGISTER_INI_ENTRIES();
476 	return SUCCESS;
477 }
478 
PHP_MSHUTDOWN_FUNCTION(cli_server)479 static PHP_MSHUTDOWN_FUNCTION(cli_server)
480 {
481 	UNREGISTER_INI_ENTRIES();
482 	return SUCCESS;
483 }
484 
PHP_MINFO_FUNCTION(cli_server)485 static PHP_MINFO_FUNCTION(cli_server)
486 {
487 	DISPLAY_INI_ENTRIES();
488 }
489 
490 zend_module_entry cli_server_module_entry = {
491 	STANDARD_MODULE_HEADER,
492 	"cli_server",
493 	NULL,
494 	PHP_MINIT(cli_server),
495 	PHP_MSHUTDOWN(cli_server),
496 	NULL,
497 	NULL,
498 	PHP_MINFO(cli_server),
499 	PHP_VERSION,
500 	STANDARD_MODULE_PROPERTIES
501 };
502 /* }}} */
503 
504 const zend_function_entry server_additional_functions[] = {
505 	PHP_FE(cli_set_process_title,	arginfo_cli_set_process_title)
506 	PHP_FE(cli_get_process_title,	arginfo_cli_get_process_title)
507 	PHP_FE(apache_request_headers,	arginfo_apache_request_headers)
508 	PHP_FE(apache_response_headers,	arginfo_apache_response_headers)
509 	PHP_FALIAS(getallheaders, apache_request_headers, arginfo_getallheaders)
510 	PHP_FE_END
511 };
512 
sapi_cli_server_startup(sapi_module_struct * sapi_module)513 static int sapi_cli_server_startup(sapi_module_struct *sapi_module) /* {{{ */
514 {
515 	return php_module_startup(sapi_module, &cli_server_module_entry);
516 } /* }}} */
517 
sapi_cli_server_ub_write(const char * str,size_t str_length)518 static size_t sapi_cli_server_ub_write(const char *str, size_t str_length) /* {{{ */
519 {
520 	php_cli_server_client *client = SG(server_context);
521 	if (!client) {
522 		return 0;
523 	}
524 	return php_cli_server_client_send_through(client, str, str_length);
525 } /* }}} */
526 
sapi_cli_server_flush(void * server_context)527 static void sapi_cli_server_flush(void *server_context) /* {{{ */
528 {
529 	php_cli_server_client *client = server_context;
530 
531 	if (!client) {
532 		return;
533 	}
534 
535 	if (!ZEND_VALID_SOCKET(client->sock)) {
536 		php_handle_aborted_connection();
537 		return;
538 	}
539 
540 	if (!SG(headers_sent)) {
541 		sapi_send_headers();
542 		SG(headers_sent) = 1;
543 	}
544 } /* }}} */
545 
sapi_cli_server_discard_headers(sapi_headers_struct * sapi_headers)546 static int sapi_cli_server_discard_headers(sapi_headers_struct *sapi_headers) /* {{{ */{
547 	return SAPI_HEADER_SENT_SUCCESSFULLY;
548 }
549 /* }}} */
550 
sapi_cli_server_send_headers(sapi_headers_struct * sapi_headers)551 static int sapi_cli_server_send_headers(sapi_headers_struct *sapi_headers) /* {{{ */
552 {
553 	php_cli_server_client *client = SG(server_context);
554 	smart_str buffer = { 0 };
555 	sapi_header_struct *h;
556 	zend_llist_position pos;
557 
558 	if (client == NULL || SG(request_info).no_headers) {
559 		return SAPI_HEADER_SENT_SUCCESSFULLY;
560 	}
561 
562 	if (SG(sapi_headers).http_status_line) {
563 		smart_str_appends(&buffer, SG(sapi_headers).http_status_line);
564 		smart_str_appendl(&buffer, "\r\n", 2);
565 	} else {
566 		append_http_status_line(&buffer, client->request.protocol_version, SG(sapi_headers).http_response_code, 0);
567 	}
568 
569 	append_essential_headers(&buffer, client, 0, sapi_headers);
570 
571 	h = (sapi_header_struct*)zend_llist_get_first_ex(&sapi_headers->headers, &pos);
572 	while (h) {
573 		if (h->header_len) {
574 			smart_str_appendl(&buffer, h->header, h->header_len);
575 			smart_str_appendl(&buffer, "\r\n", 2);
576 		}
577 		h = (sapi_header_struct*)zend_llist_get_next_ex(&sapi_headers->headers, &pos);
578 	}
579 	smart_str_appendl(&buffer, "\r\n", 2);
580 
581 	php_cli_server_client_send_through(client, ZSTR_VAL(buffer.s), ZSTR_LEN(buffer.s));
582 
583 	smart_str_free(&buffer);
584 	return SAPI_HEADER_SENT_SUCCESSFULLY;
585 }
586 /* }}} */
587 
sapi_cli_server_read_cookies(void)588 static char *sapi_cli_server_read_cookies(void) /* {{{ */
589 {
590 	php_cli_server_client *client = SG(server_context);
591 	zval *val;
592 	if (NULL == (val = zend_hash_str_find(&client->request.headers, "cookie", sizeof("cookie")-1))) {
593 		return NULL;
594 	}
595 	return Z_STRVAL_P(val);
596 } /* }}} */
597 
sapi_cli_server_read_post(char * buf,size_t count_bytes)598 static size_t sapi_cli_server_read_post(char *buf, size_t count_bytes) /* {{{ */
599 {
600 	php_cli_server_client *client = SG(server_context);
601 	if (client->request.content) {
602 		size_t content_len = client->request.content_len;
603 		size_t nbytes_copied = MIN(client->post_read_offset + count_bytes, content_len) - client->post_read_offset;
604 		memmove(buf, client->request.content + client->post_read_offset, nbytes_copied);
605 		client->post_read_offset += nbytes_copied;
606 		return nbytes_copied;
607 	}
608 	return 0;
609 } /* }}} */
610 
sapi_cli_server_register_variable(zval * track_vars_array,const char * key,const char * val)611 static void sapi_cli_server_register_variable(zval *track_vars_array, const char *key, const char *val) /* {{{ */
612 {
613 	char *new_val = (char *)val;
614 	size_t new_val_len;
615 
616 	if (NULL == val) {
617 		return;
618 	}
619 
620 	if (sapi_module.input_filter(PARSE_SERVER, (char*)key, &new_val, strlen(val), &new_val_len)) {
621 		php_register_variable_safe((char *)key, new_val, new_val_len, track_vars_array);
622 	}
623 } /* }}} */
624 
sapi_cli_server_register_known_var_char(zval * track_vars_array,const char * var_name,size_t var_name_len,const char * value,size_t value_len)625 static void sapi_cli_server_register_known_var_char(zval *track_vars_array,
626 	const char *var_name, size_t var_name_len, const char *value, size_t value_len)
627 {
628 	zval new_entry;
629 
630 	if (!value) {
631 		return;
632 	}
633 
634 	ZVAL_STRINGL_FAST(&new_entry, value, value_len);
635 
636 	php_register_known_variable(var_name, var_name_len, &new_entry, track_vars_array);
637 }
638 
sapi_cli_server_register_known_var_str(zval * track_vars_array,const char * var_name,size_t var_name_len,zend_string * value)639 static void sapi_cli_server_register_known_var_str(zval *track_vars_array,
640 	const char *var_name, size_t var_name_len, /* const */ zend_string *value)
641 {
642 	zval new_entry;
643 
644 	if (!value) {
645 		return;
646 	}
647 
648 	ZVAL_STR_COPY(&new_entry, value);
649 
650 	php_register_known_variable(var_name, var_name_len, &new_entry, track_vars_array);
651 }
652 
653 /* The entry zval will always contain a zend_string* */
sapi_cli_server_register_entry_cb(zval * entry,int num_args,va_list args,zend_hash_key * hash_key)654 static int sapi_cli_server_register_entry_cb(zval *entry, int num_args, va_list args, zend_hash_key *hash_key) /* {{{ */ {
655 	zval *track_vars_array = va_arg(args, zval *);
656 
657 	ZEND_ASSERT(Z_TYPE_P(entry) == IS_STRING);
658 
659 	if (hash_key->key) {
660 		char *real_key, *key;
661 		uint32_t i;
662 		key = estrndup(ZSTR_VAL(hash_key->key), ZSTR_LEN(hash_key->key));
663 		for(i=0; i<ZSTR_LEN(hash_key->key); i++) {
664 			if (key[i] == '-') {
665 				key[i] = '_';
666 			} else {
667 				key[i] = toupper(key[i]);
668 			}
669 		}
670 		spprintf(&real_key, 0, "%s_%s", "HTTP", key);
671 		if (strcmp(key, "CONTENT_TYPE") == 0 || strcmp(key, "CONTENT_LENGTH") == 0) {
672 			/* Is it possible to use sapi_cli_server_register_known_var_char() and not go through the SAPI filter? */
673 			sapi_cli_server_register_variable(track_vars_array, key, Z_STRVAL_P(entry));
674 		}
675 		sapi_cli_server_register_variable(track_vars_array, real_key, Z_STRVAL_P(entry));
676 		efree(key);
677 		efree(real_key);
678 	}
679 
680 	return ZEND_HASH_APPLY_KEEP;
681 }
682 /* }}} */
683 
sapi_cli_server_register_variables(zval * track_vars_array)684 static void sapi_cli_server_register_variables(zval *track_vars_array) /* {{{ */
685 {
686 	php_cli_server_client *client = SG(server_context);
687 
688 	sapi_cli_server_register_known_var_char(track_vars_array,
689 		"DOCUMENT_ROOT", strlen("DOCUMENT_ROOT"), client->server->document_root, client->server->document_root_len);
690 	{
691 		char *tmp;
692 		if ((tmp = strrchr(ZSTR_VAL(client->addr_str), ':'))) {
693 			char addr[64], port[8];
694 			const char *addr_start = ZSTR_VAL(client->addr_str), *addr_end = tmp;
695 			if (addr_start[0] == '[') addr_start++;
696 			if (addr_end[-1] == ']') addr_end--;
697 
698 			strncpy(port, tmp + 1, 8);
699 			port[7] = '\0';
700 			size_t addr_len = addr_end - addr_start;
701 			strncpy(addr, addr_start, addr_len);
702 			addr[addr_len] = '\0';
703 			ZEND_ASSERT(addr_len == strlen(addr));
704 			sapi_cli_server_register_known_var_char(track_vars_array,
705 				"REMOTE_ADDR", strlen("REMOTE_ADDR"), addr, addr_len);
706 			sapi_cli_server_register_known_var_char(track_vars_array,
707 				"REMOTE_PORT", strlen("REMOTE_PORT"), port, strlen(port));
708 		} else {
709 			sapi_cli_server_register_known_var_str(track_vars_array,
710 				"REMOTE_ADDR", strlen("REMOTE_ADDR"), client->addr_str);
711 		}
712 	}
713 	{
714 		zend_string *tmp = strpprintf(0, "PHP/%s (Development Server)", PHP_VERSION);
715 		sapi_cli_server_register_known_var_str(track_vars_array, "SERVER_SOFTWARE", strlen("SERVER_SOFTWARE"), tmp);
716 		zend_string_release_ex(tmp, /* persistent */ false);
717 	}
718 	{
719 		zend_string *tmp = strpprintf(0, "HTTP/%d.%d", client->request.protocol_version / 100, client->request.protocol_version % 100);
720 		sapi_cli_server_register_known_var_str(track_vars_array, "SERVER_PROTOCOL", strlen("SERVER_PROTOCOL"), tmp);
721 		zend_string_release_ex(tmp, /* persistent */ false);
722 	}
723 	sapi_cli_server_register_known_var_char(track_vars_array,
724 		"SERVER_NAME", strlen("SERVER_NAME"), client->server->host, strlen(client->server->host));
725 	{
726 		zend_string *tmp = strpprintf(0, "%i",  client->server->port);
727 		sapi_cli_server_register_known_var_str(track_vars_array, "SERVER_PORT", strlen("SERVER_PORT"), tmp);
728 		zend_string_release_ex(tmp, /* persistent */ false);
729 	}
730 
731 	sapi_cli_server_register_known_var_str(track_vars_array,
732 		"REQUEST_URI", strlen("REQUEST_URI"), client->request.request_uri);
733 	sapi_cli_server_register_known_var_char(track_vars_array,
734 		"REQUEST_METHOD", strlen("REQUEST_METHOD"),
735 		SG(request_info).request_method, strlen(SG(request_info).request_method));
736 	sapi_cli_server_register_known_var_char(track_vars_array,
737 		"SCRIPT_NAME", strlen("SCRIPT_NAME"), client->request.vpath, client->request.vpath_len);
738 	if (SG(request_info).path_translated) {
739 		sapi_cli_server_register_known_var_char(track_vars_array,
740 			"SCRIPT_FILENAME", strlen("SCRIPT_FILENAME"),
741 			SG(request_info).path_translated, strlen(SG(request_info).path_translated));
742 	} else if (client->server->router) {
743 		sapi_cli_server_register_known_var_char(track_vars_array,
744 			"SCRIPT_FILENAME", strlen("SCRIPT_FILENAME"), client->server->router, client->server->router_len);
745 	}
746 	if (client->request.path_info) {
747 		sapi_cli_server_register_known_var_char(track_vars_array,
748 			"PATH_INFO", strlen("PATH_INFO"), client->request.path_info, client->request.path_info_len);
749 	}
750 	if (client->request.path_info_len) {
751 		zend_string *tmp = strpprintf(0, "%s%s", client->request.vpath, client->request.path_info);
752 		sapi_cli_server_register_known_var_str(track_vars_array, "PHP_SELF", strlen("PHP_SELF"), tmp);
753 		zend_string_release_ex(tmp, /* persistent */ false);
754 	} else {
755 		sapi_cli_server_register_known_var_char(track_vars_array,
756 			"PHP_SELF", strlen("PHP_SELF"), client->request.vpath, client->request.vpath_len);
757 	}
758 	if (client->request.query_string) {
759 		/* Use sapi_cli_server_register_variable() to pass query string through SAPI input filter,
760 		 * and check keys are proper PHP var names */
761 		sapi_cli_server_register_variable(track_vars_array, "QUERY_STRING", client->request.query_string);
762 	}
763 	/* Use sapi_cli_server_register_variable() to pass header values through SAPI input filter,
764 	 * and check keys are proper PHP var names */
765 	zend_hash_apply_with_arguments(&client->request.headers, (apply_func_args_t)sapi_cli_server_register_entry_cb, 1, track_vars_array);
766 } /* }}} */
767 
sapi_cli_server_log_write(int type,const char * msg)768 static void sapi_cli_server_log_write(int type, const char *msg) /* {{{ */
769 {
770 	char buf[52];
771 
772 	if (php_cli_server_log_level < type) {
773 		return;
774 	}
775 
776 	if (!php_cli_server_get_system_time(buf)) {
777 		memmove(buf, "unknown time, can't be fetched", sizeof("unknown time, can't be fetched"));
778 	} else {
779 		size_t l = strlen(buf);
780 		if (l > 0) {
781 			buf[l - 1] = '\0';
782 		} else {
783 			memmove(buf, "unknown", sizeof("unknown"));
784 		}
785 	}
786 #ifdef HAVE_FORK
787 	if (php_cli_server_workers_max > 1) {
788 		fprintf(stderr, "[%ld] [%s] %s\n", (long) getpid(), buf, msg);
789 	} else {
790 		fprintf(stderr, "[%s] %s\n", buf, msg);
791 	}
792 #else
793 	fprintf(stderr, "[%s] %s\n", buf, msg);
794 #endif
795 } /* }}} */
796 
sapi_cli_server_log_message(const char * msg,int syslog_type_int)797 static void sapi_cli_server_log_message(const char *msg, int syslog_type_int) /* {{{ */
798 {
799 	sapi_cli_server_log_write(PHP_CLI_SERVER_LOG_MESSAGE, msg);
800 } /* }}} */
801 
802 /* {{{ sapi_module_struct cli_server_sapi_module */
803 sapi_module_struct cli_server_sapi_module = {
804 	"cli-server",							/* name */
805 	"Built-in HTTP server",		/* pretty name */
806 
807 	sapi_cli_server_startup,				/* startup */
808 	php_module_shutdown_wrapper,	/* shutdown */
809 
810 	NULL,							/* activate */
811 	NULL,							/* deactivate */
812 
813 	sapi_cli_server_ub_write,		/* unbuffered write */
814 	sapi_cli_server_flush,			/* flush */
815 	NULL,							/* get uid */
816 	NULL,							/* getenv */
817 
818 	php_error,						/* error handler */
819 
820 	NULL,							/* header handler */
821 	sapi_cli_server_send_headers,	/* send headers handler */
822 	NULL,							/* send header handler */
823 
824 	sapi_cli_server_read_post,		/* read POST data */
825 	sapi_cli_server_read_cookies,	/* read Cookies */
826 
827 	sapi_cli_server_register_variables,	/* register server variables */
828 	sapi_cli_server_log_message,	/* Log message */
829 	NULL,							/* Get request time */
830 	NULL,							/* Child terminate */
831 
832 	STANDARD_SAPI_MODULE_PROPERTIES
833 }; /* }}} */
834 
php_cli_server_poller_ctor(php_cli_server_poller * poller)835 static void php_cli_server_poller_ctor(php_cli_server_poller *poller) /* {{{ */
836 {
837 	FD_ZERO(&poller->rfds);
838 	FD_ZERO(&poller->wfds);
839 	poller->max_fd = -1;
840 } /* }}} */
841 
php_cli_server_poller_add(php_cli_server_poller * poller,int mode,php_socket_t fd)842 static void php_cli_server_poller_add(php_cli_server_poller *poller, int mode, php_socket_t fd) /* {{{ */
843 {
844 	if (mode & POLLIN) {
845 		PHP_SAFE_FD_SET(fd, &poller->rfds);
846 	}
847 	if (mode & POLLOUT) {
848 		PHP_SAFE_FD_SET(fd, &poller->wfds);
849 	}
850 	if (fd > poller->max_fd) {
851 		poller->max_fd = fd;
852 	}
853 } /* }}} */
854 
php_cli_server_poller_remove(php_cli_server_poller * poller,int mode,php_socket_t fd)855 static void php_cli_server_poller_remove(php_cli_server_poller *poller, int mode, php_socket_t fd) /* {{{ */
856 {
857 	if (mode & POLLIN) {
858 		PHP_SAFE_FD_CLR(fd, &poller->rfds);
859 	}
860 	if (mode & POLLOUT) {
861 		PHP_SAFE_FD_CLR(fd, &poller->wfds);
862 	}
863 #ifndef PHP_WIN32
864 	if (fd == poller->max_fd) {
865 		while (fd > 0) {
866 			fd--;
867 			if (PHP_SAFE_FD_ISSET(fd, &poller->rfds) || PHP_SAFE_FD_ISSET(fd, &poller->wfds)) {
868 				break;
869 			}
870 		}
871 		poller->max_fd = fd;
872 	}
873 #endif
874 } /* }}} */
875 
php_cli_server_poller_poll(php_cli_server_poller * poller,struct timeval * tv)876 static int php_cli_server_poller_poll(php_cli_server_poller *poller, struct timeval *tv) /* {{{ */
877 {
878 	memmove(&poller->active.rfds, &poller->rfds, sizeof(poller->rfds));
879 	memmove(&poller->active.wfds, &poller->wfds, sizeof(poller->wfds));
880 	return php_select(poller->max_fd + 1, &poller->active.rfds, &poller->active.wfds, NULL, tv);
881 } /* }}} */
882 
php_cli_server_poller_iter_on_active(php_cli_server_poller * poller,void * opaque,zend_result (* callback)(void *,php_socket_t fd,int events))883 static zend_result php_cli_server_poller_iter_on_active(php_cli_server_poller *poller, void *opaque, zend_result(*callback)(void *, php_socket_t fd, int events)) /* {{{ */
884 {
885 	zend_result retval = SUCCESS;
886 #ifdef PHP_WIN32
887 	struct socket_entry {
888 		SOCKET fd;
889 		int events;
890 	} entries[FD_SETSIZE * 2];
891 	size_t i;
892 	struct socket_entry *n = entries, *m;
893 
894 	for (i = 0; i < poller->active.rfds.fd_count; i++) {
895 		n->events = POLLIN;
896 		n->fd = poller->active.rfds.fd_array[i];
897 		n++;
898 	}
899 
900 	m = n;
901 	for (i = 0; i < poller->active.wfds.fd_count; i++) {
902 		struct socket_entry *e;
903 		SOCKET fd = poller->active.wfds.fd_array[i];
904 		for (e = entries; e < m; e++) {
905 			if (e->fd == fd) {
906 				e->events |= POLLOUT;
907 			}
908 		}
909 		if (e == m) {
910 			assert(n < entries + FD_SETSIZE * 2);
911 			n->events = POLLOUT;
912 			n->fd = fd;
913 			n++;
914 		}
915 	}
916 
917 	{
918 		struct socket_entry *e = entries;
919 		for (; e < n; e++) {
920 			if (SUCCESS != callback(opaque, e->fd, e->events)) {
921 				retval = FAILURE;
922 			}
923 		}
924 	}
925 
926 #else
927 	php_socket_t fd;
928 	const php_socket_t max_fd = poller->max_fd;
929 
930 	for (fd=0 ; fd<=max_fd ; fd++)  {
931 		if (PHP_SAFE_FD_ISSET(fd, &poller->active.rfds)) {
932 				if (SUCCESS != callback(opaque, fd, POLLIN)) {
933 					retval = FAILURE;
934 				}
935 		}
936 		if (PHP_SAFE_FD_ISSET(fd, &poller->active.wfds)) {
937 				if (SUCCESS != callback(opaque, fd, POLLOUT)) {
938 					retval = FAILURE;
939 				}
940 		}
941 	}
942 #endif
943 	return retval;
944 } /* }}} */
945 
php_cli_server_chunk_size(const php_cli_server_chunk * chunk)946 static size_t php_cli_server_chunk_size(const php_cli_server_chunk *chunk) /* {{{ */
947 {
948 	switch (chunk->type) {
949 	case PHP_CLI_SERVER_CHUNK_HEAP:
950 		return chunk->data.heap.len;
951 	case PHP_CLI_SERVER_CHUNK_IMMORTAL:
952 		return chunk->data.immortal.len;
953 	}
954 	return 0;
955 } /* }}} */
956 
php_cli_server_chunk_dtor(php_cli_server_chunk * chunk)957 static void php_cli_server_chunk_dtor(php_cli_server_chunk *chunk) /* {{{ */
958 {
959 	switch (chunk->type) {
960 	case PHP_CLI_SERVER_CHUNK_HEAP:
961 		if (chunk->data.heap.block != chunk) {
962 			pefree(chunk->data.heap.block, 1);
963 		}
964 		break;
965 	case PHP_CLI_SERVER_CHUNK_IMMORTAL:
966 		break;
967 	}
968 } /* }}} */
969 
php_cli_server_buffer_dtor(php_cli_server_buffer * buffer)970 static void php_cli_server_buffer_dtor(php_cli_server_buffer *buffer) /* {{{ */
971 {
972 	php_cli_server_chunk *chunk, *next;
973 	for (chunk = buffer->first; chunk; chunk = next) {
974 		next = chunk->next;
975 		php_cli_server_chunk_dtor(chunk);
976 		pefree(chunk, 1);
977 	}
978 } /* }}} */
979 
php_cli_server_buffer_ctor(php_cli_server_buffer * buffer)980 static void php_cli_server_buffer_ctor(php_cli_server_buffer *buffer) /* {{{ */
981 {
982 	buffer->first = NULL;
983 	buffer->last = NULL;
984 } /* }}} */
985 
php_cli_server_buffer_append(php_cli_server_buffer * buffer,php_cli_server_chunk * chunk)986 static void php_cli_server_buffer_append(php_cli_server_buffer *buffer, php_cli_server_chunk *chunk) /* {{{ */
987 {
988 	php_cli_server_chunk *last;
989 	for (last = chunk; last->next; last = last->next);
990 	if (!buffer->last) {
991 		buffer->first = chunk;
992 	} else {
993 		buffer->last->next = chunk;
994 	}
995 	buffer->last = last;
996 } /* }}} */
997 
php_cli_server_buffer_prepend(php_cli_server_buffer * buffer,php_cli_server_chunk * chunk)998 static void php_cli_server_buffer_prepend(php_cli_server_buffer *buffer, php_cli_server_chunk *chunk) /* {{{ */
999 {
1000 	php_cli_server_chunk *last;
1001 	for (last = chunk; last->next; last = last->next);
1002 	last->next = buffer->first;
1003 	if (!buffer->last) {
1004 		buffer->last = last;
1005 	}
1006 	buffer->first = chunk;
1007 } /* }}} */
1008 
php_cli_server_buffer_size(const php_cli_server_buffer * buffer)1009 static size_t php_cli_server_buffer_size(const php_cli_server_buffer *buffer) /* {{{ */
1010 {
1011 	php_cli_server_chunk *chunk;
1012 	size_t retval = 0;
1013 	for (chunk = buffer->first; chunk; chunk = chunk->next) {
1014 		retval += php_cli_server_chunk_size(chunk);
1015 	}
1016 	return retval;
1017 } /* }}} */
1018 
php_cli_server_chunk_immortal_new(const char * buf,size_t len)1019 static php_cli_server_chunk *php_cli_server_chunk_immortal_new(const char *buf, size_t len) /* {{{ */
1020 {
1021 	php_cli_server_chunk *chunk = pemalloc(sizeof(php_cli_server_chunk), 1);
1022 
1023 	chunk->type = PHP_CLI_SERVER_CHUNK_IMMORTAL;
1024 	chunk->next = NULL;
1025 	chunk->data.immortal.p = buf;
1026 	chunk->data.immortal.len = len;
1027 	return chunk;
1028 } /* }}} */
1029 
php_cli_server_chunk_heap_new(void * block,char * buf,size_t len)1030 static php_cli_server_chunk *php_cli_server_chunk_heap_new(void *block, char *buf, size_t len) /* {{{ */
1031 {
1032 	php_cli_server_chunk *chunk = pemalloc(sizeof(php_cli_server_chunk), 1);
1033 
1034 	chunk->type = PHP_CLI_SERVER_CHUNK_HEAP;
1035 	chunk->next = NULL;
1036 	chunk->data.heap.block = block;
1037 	chunk->data.heap.p = buf;
1038 	chunk->data.heap.len = len;
1039 	return chunk;
1040 } /* }}} */
1041 
php_cli_server_chunk_heap_new_self_contained(size_t len)1042 static php_cli_server_chunk *php_cli_server_chunk_heap_new_self_contained(size_t len) /* {{{ */
1043 {
1044 	php_cli_server_chunk *chunk = pemalloc(sizeof(php_cli_server_chunk) + len, 1);
1045 
1046 	chunk->type = PHP_CLI_SERVER_CHUNK_HEAP;
1047 	chunk->next = NULL;
1048 	chunk->data.heap.block = chunk;
1049 	chunk->data.heap.p = (char *)(chunk + 1);
1050 	chunk->data.heap.len = len;
1051 	return chunk;
1052 } /* }}} */
1053 
php_cli_server_content_sender_dtor(php_cli_server_content_sender * sender)1054 static void php_cli_server_content_sender_dtor(php_cli_server_content_sender *sender) /* {{{ */
1055 {
1056 	php_cli_server_buffer_dtor(&sender->buffer);
1057 } /* }}} */
1058 
php_cli_server_content_sender_ctor(php_cli_server_content_sender * sender)1059 static void php_cli_server_content_sender_ctor(php_cli_server_content_sender *sender) /* {{{ */
1060 {
1061 	php_cli_server_buffer_ctor(&sender->buffer);
1062 } /* }}} */
1063 
php_cli_server_content_sender_send(php_cli_server_content_sender * sender,php_socket_t fd,size_t * nbytes_sent_total)1064 static int php_cli_server_content_sender_send(php_cli_server_content_sender *sender, php_socket_t fd, size_t *nbytes_sent_total) /* {{{ */
1065 {
1066 	php_cli_server_chunk *chunk, *next;
1067 	size_t _nbytes_sent_total = 0;
1068 
1069 	for (chunk = sender->buffer.first; chunk; chunk = next) {
1070 #ifdef PHP_WIN32
1071 		int nbytes_sent;
1072 #else
1073 		ssize_t nbytes_sent;
1074 #endif
1075 		next = chunk->next;
1076 
1077 		switch (chunk->type) {
1078 		case PHP_CLI_SERVER_CHUNK_HEAP:
1079 #ifdef PHP_WIN32
1080 			nbytes_sent = send(fd, chunk->data.heap.p, (int)chunk->data.heap.len, 0);
1081 #else
1082 			nbytes_sent = send(fd, chunk->data.heap.p, chunk->data.heap.len, 0);
1083 #endif
1084 			if (nbytes_sent < 0) {
1085 				*nbytes_sent_total = _nbytes_sent_total;
1086 				return php_socket_errno();
1087 #ifdef PHP_WIN32
1088 			} else if (nbytes_sent == chunk->data.heap.len) {
1089 #else
1090 			} else if (nbytes_sent == (ssize_t)chunk->data.heap.len) {
1091 #endif
1092 				php_cli_server_chunk_dtor(chunk);
1093 				pefree(chunk, 1);
1094 				sender->buffer.first = next;
1095 				if (!next) {
1096 					sender->buffer.last = NULL;
1097 				}
1098 			} else {
1099 				chunk->data.heap.p += nbytes_sent;
1100 				chunk->data.heap.len -= nbytes_sent;
1101 			}
1102 			_nbytes_sent_total += nbytes_sent;
1103 			break;
1104 
1105 		case PHP_CLI_SERVER_CHUNK_IMMORTAL:
1106 #ifdef PHP_WIN32
1107 			nbytes_sent = send(fd, chunk->data.immortal.p, (int)chunk->data.immortal.len, 0);
1108 #else
1109 			nbytes_sent = send(fd, chunk->data.immortal.p, chunk->data.immortal.len, 0);
1110 #endif
1111 			if (nbytes_sent < 0) {
1112 				*nbytes_sent_total = _nbytes_sent_total;
1113 				return php_socket_errno();
1114 #ifdef PHP_WIN32
1115 			} else if (nbytes_sent == chunk->data.immortal.len) {
1116 #else
1117 			} else if (nbytes_sent == (ssize_t)chunk->data.immortal.len) {
1118 #endif
1119 				php_cli_server_chunk_dtor(chunk);
1120 				pefree(chunk, 1);
1121 				sender->buffer.first = next;
1122 				if (!next) {
1123 					sender->buffer.last = NULL;
1124 				}
1125 			} else {
1126 				chunk->data.immortal.p += nbytes_sent;
1127 				chunk->data.immortal.len -= nbytes_sent;
1128 			}
1129 			_nbytes_sent_total += nbytes_sent;
1130 			break;
1131 		}
1132 	}
1133 	*nbytes_sent_total = _nbytes_sent_total;
1134 	return 0;
1135 } /* }}} */
1136 
php_cli_server_content_sender_pull(php_cli_server_content_sender * sender,int fd,size_t * nbytes_read)1137 static bool php_cli_server_content_sender_pull(php_cli_server_content_sender *sender, int fd, size_t *nbytes_read) /* {{{ */
1138 {
1139 #ifdef PHP_WIN32
1140 	int _nbytes_read;
1141 #else
1142 	ssize_t _nbytes_read;
1143 #endif
1144 	php_cli_server_chunk *chunk = php_cli_server_chunk_heap_new_self_contained(131072);
1145 
1146 #ifdef PHP_WIN32
1147 	_nbytes_read = read(fd, chunk->data.heap.p, (unsigned int)chunk->data.heap.len);
1148 #else
1149 	_nbytes_read = read(fd, chunk->data.heap.p, chunk->data.heap.len);
1150 #endif
1151 	if (_nbytes_read < 0) {
1152 		if (php_cli_server_log_level >= PHP_CLI_SERVER_LOG_ERROR) {
1153 			char *errstr = get_last_error();
1154 			php_cli_server_logf(PHP_CLI_SERVER_LOG_ERROR, "%s", errstr);
1155 			pefree(errstr, 1);
1156 		}
1157 		php_cli_server_chunk_dtor(chunk);
1158 		pefree(chunk, 1);
1159 		return false;
1160 	}
1161 	chunk->data.heap.len = _nbytes_read;
1162 	php_cli_server_buffer_append(&sender->buffer, chunk);
1163 	*nbytes_read = _nbytes_read;
1164 	return true;
1165 } /* }}} */
1166 
1167 #if HAVE_UNISTD_H
php_cli_is_output_tty(void)1168 static int php_cli_is_output_tty(void) /* {{{ */
1169 {
1170 	if (php_cli_output_is_tty == OUTPUT_NOT_CHECKED) {
1171 		php_cli_output_is_tty = isatty(STDOUT_FILENO);
1172 	}
1173 	return php_cli_output_is_tty;
1174 } /* }}} */
1175 #elif defined(PHP_WIN32)
php_cli_is_output_tty()1176 static int php_cli_is_output_tty() /* {{{ */
1177 {
1178 	if (php_cli_output_is_tty == OUTPUT_NOT_CHECKED) {
1179 		php_cli_output_is_tty = php_win32_console_fileno_is_console(STDOUT_FILENO) && php_win32_console_fileno_has_vt100(STDOUT_FILENO);
1180 	}
1181 	return php_cli_output_is_tty;
1182 } /* }}} */
1183 #endif
1184 
php_cli_server_log_response(php_cli_server_client * client,int status,const char * message)1185 static void php_cli_server_log_response(php_cli_server_client *client, int status, const char *message) /* {{{ */
1186 {
1187 	int color = 0, effective_status = status;
1188 	char *basic_buf, *message_buf = "", *error_buf = "";
1189 	bool append_error_message = 0;
1190 
1191 	if (PG(last_error_message)) {
1192 		if (PG(last_error_type) & E_FATAL_ERRORS) {
1193 			if (status == 200) {
1194 				/* the status code isn't changed by a fatal error, so fake it */
1195 				effective_status = 500;
1196 			}
1197 
1198 			append_error_message = 1;
1199 		}
1200 	}
1201 
1202 #if HAVE_UNISTD_H || defined(PHP_WIN32)
1203 	if (CLI_SERVER_G(color) && php_cli_is_output_tty() == OUTPUT_IS_TTY) {
1204 		if (effective_status >= 500) {
1205 			/* server error: red */
1206 			color = 1;
1207 		} else if (effective_status >= 400) {
1208 			/* client error: yellow */
1209 			color = 3;
1210 		} else if (effective_status >= 200) {
1211 			/* success: green */
1212 			color = 2;
1213 		}
1214 	}
1215 #endif
1216 
1217 	/* basic */
1218 	spprintf(&basic_buf, 0, "%s [%d]: %s %s", ZSTR_VAL(client->addr_str), status,
1219 		php_http_method_str(client->request.request_method), ZSTR_VAL(client->request.request_uri));
1220 	if (!basic_buf) {
1221 		return;
1222 	}
1223 
1224 	/* message */
1225 	if (message) {
1226 		spprintf(&message_buf, 0, " - %s", message);
1227 		if (!message_buf) {
1228 			efree(basic_buf);
1229 			return;
1230 		}
1231 	}
1232 
1233 	/* error */
1234 	if (append_error_message) {
1235 		spprintf(&error_buf, 0, " - %s in %s on line %d",
1236 			ZSTR_VAL(PG(last_error_message)), ZSTR_VAL(PG(last_error_file)), PG(last_error_lineno));
1237 		if (!error_buf) {
1238 			efree(basic_buf);
1239 			if (message) {
1240 				efree(message_buf);
1241 			}
1242 			return;
1243 		}
1244 	}
1245 
1246 	if (color) {
1247 		php_cli_server_logf(PHP_CLI_SERVER_LOG_MESSAGE, "\x1b[3%dm%s%s%s\x1b[0m", color, basic_buf, message_buf, error_buf);
1248 	} else {
1249 		php_cli_server_logf(PHP_CLI_SERVER_LOG_MESSAGE, "%s%s%s", basic_buf, message_buf, error_buf);
1250 	}
1251 
1252 	efree(basic_buf);
1253 	if (message) {
1254 		efree(message_buf);
1255 	}
1256 	if (append_error_message) {
1257 		efree(error_buf);
1258 	}
1259 } /* }}} */
1260 
php_cli_server_logf(int type,const char * format,...)1261 static void php_cli_server_logf(int type, const char *format, ...) /* {{{ */
1262 {
1263 	char *buf = NULL;
1264 	va_list ap;
1265 
1266 	if (php_cli_server_log_level < type) {
1267 		return;
1268 	}
1269 
1270 	va_start(ap, format);
1271 	vspprintf(&buf, 0, format, ap);
1272 	va_end(ap);
1273 
1274 	if (!buf) {
1275 		return;
1276 	}
1277 
1278 	sapi_cli_server_log_write(type, buf);
1279 
1280 	efree(buf);
1281 } /* }}} */
1282 
php_network_listen_socket(const char * host,int * port,int socktype,int * af,socklen_t * socklen,zend_string ** errstr)1283 static php_socket_t php_network_listen_socket(const char *host, int *port, int socktype, int *af, socklen_t *socklen, zend_string **errstr) /* {{{ */
1284 {
1285 	php_socket_t retval = SOCK_ERR;
1286 	int err = 0;
1287 	struct sockaddr *sa = NULL, **p, **sal;
1288 
1289 	int num_addrs = php_network_getaddresses(host, socktype, &sal, errstr);
1290 	if (num_addrs == 0) {
1291 		return -1;
1292 	}
1293 	for (p = sal; *p; p++) {
1294 		if (sa) {
1295 			pefree(sa, 1);
1296 			sa = NULL;
1297 		}
1298 
1299 		retval = socket((*p)->sa_family, socktype, 0);
1300 		if (retval == SOCK_ERR) {
1301 			continue;
1302 		}
1303 
1304 		switch ((*p)->sa_family) {
1305 #if HAVE_GETADDRINFO && HAVE_IPV6
1306 		case AF_INET6:
1307 			sa = pemalloc(sizeof(struct sockaddr_in6), 1);
1308 			*(struct sockaddr_in6 *)sa = *(struct sockaddr_in6 *)*p;
1309 			((struct sockaddr_in6 *)sa)->sin6_port = htons(*port);
1310 			*socklen = sizeof(struct sockaddr_in6);
1311 			break;
1312 #endif
1313 		case AF_INET:
1314 			sa = pemalloc(sizeof(struct sockaddr_in), 1);
1315 			*(struct sockaddr_in *)sa = *(struct sockaddr_in *)*p;
1316 			((struct sockaddr_in *)sa)->sin_port = htons(*port);
1317 			*socklen = sizeof(struct sockaddr_in);
1318 			break;
1319 		default:
1320 			/* Unknown family */
1321 			*socklen = 0;
1322 			closesocket(retval);
1323 			continue;
1324 		}
1325 
1326 #ifdef SO_REUSEADDR
1327 		{
1328 			int val = 1;
1329 			setsockopt(retval, SOL_SOCKET, SO_REUSEADDR, (char*)&val, sizeof(val));
1330 		}
1331 #endif
1332 
1333 		if (bind(retval, sa, *socklen) == SOCK_CONN_ERR) {
1334 			err = php_socket_errno();
1335 			if (err == SOCK_EINVAL || err == SOCK_EADDRINUSE) {
1336 				goto out;
1337 			}
1338 			closesocket(retval);
1339 			retval = SOCK_ERR;
1340 			continue;
1341 		}
1342 		err = 0;
1343 
1344 		*af = sa->sa_family;
1345 		if (*port == 0) {
1346 			if (getsockname(retval, sa, socklen)) {
1347 				err = php_socket_errno();
1348 				goto out;
1349 			}
1350 			switch (sa->sa_family) {
1351 #if HAVE_GETADDRINFO && HAVE_IPV6
1352 			case AF_INET6:
1353 				*port = ntohs(((struct sockaddr_in6 *)sa)->sin6_port);
1354 				break;
1355 #endif
1356 			case AF_INET:
1357 				*port = ntohs(((struct sockaddr_in *)sa)->sin_port);
1358 				break;
1359 			}
1360 		}
1361 
1362 		break;
1363 	}
1364 
1365 	if (retval == SOCK_ERR) {
1366 		goto out;
1367 	}
1368 
1369 	if (listen(retval, SOMAXCONN)) {
1370 		err = php_socket_errno();
1371 		goto out;
1372 	}
1373 
1374 out:
1375 	if (sa) {
1376 		pefree(sa, 1);
1377 	}
1378 	if (sal) {
1379 		php_network_freeaddresses(sal);
1380 	}
1381 	if (err) {
1382 		if (ZEND_VALID_SOCKET(retval)) {
1383 			closesocket(retval);
1384 		}
1385 		if (errstr) {
1386 			*errstr = php_socket_error_str(err);
1387 		}
1388 		return SOCK_ERR;
1389 	}
1390 	return retval;
1391 } /* }}} */
1392 
php_cli_server_request_ctor(php_cli_server_request * req)1393 static void php_cli_server_request_ctor(php_cli_server_request *req) /* {{{ */
1394 {
1395 	req->protocol_version = 0;
1396 	req->request_uri = NULL;
1397 	req->vpath = NULL;
1398 	req->vpath_len = 0;
1399 	req->path_translated = NULL;
1400 	req->path_translated_len = 0;
1401 	req->path_info = NULL;
1402 	req->path_info_len = 0;
1403 	req->query_string = NULL;
1404 	req->query_string_len = 0;
1405 	zend_hash_init(&req->headers, 0, NULL, cli_header_value_dtor, 1);
1406 	/* No destructor is registered as the value pointed by is the same as for &req->headers */
1407 	GC_MAKE_PERSISTENT_LOCAL(&req->headers);
1408 	zend_hash_init(&req->headers_original_case, 0, NULL, NULL, 1);
1409 	GC_MAKE_PERSISTENT_LOCAL(&req->headers_original_case);
1410 	req->content = NULL;
1411 	req->content_len = 0;
1412 	req->ext = NULL;
1413 	req->ext_len = 0;
1414 } /* }}} */
1415 
php_cli_server_request_dtor(php_cli_server_request * req)1416 static void php_cli_server_request_dtor(php_cli_server_request *req) /* {{{ */
1417 {
1418 	if (req->request_uri) {
1419 		zend_string_release_ex(req->request_uri, /* persistent */ true);
1420 	}
1421 	if (req->vpath) {
1422 		pefree(req->vpath, 1);
1423 	}
1424 	if (req->path_translated) {
1425 		pefree(req->path_translated, 1);
1426 	}
1427 	if (req->path_info) {
1428 		pefree(req->path_info, 1);
1429 	}
1430 	if (req->query_string) {
1431 		pefree(req->query_string, 1);
1432 	}
1433 	zend_hash_destroy(&req->headers);
1434 	zend_hash_destroy(&req->headers_original_case);
1435 	if (req->content) {
1436 		pefree(req->content, 1);
1437 	}
1438 } /* }}} */
1439 
php_cli_server_request_translate_vpath(php_cli_server_request * request,const char * document_root,size_t document_root_len)1440 static void php_cli_server_request_translate_vpath(php_cli_server_request *request, const char *document_root, size_t document_root_len) /* {{{ */
1441 {
1442 	zend_stat_t sb = {0};
1443 	static const char *index_files[] = { "index.php", "index.html", NULL };
1444 	char *buf = safe_pemalloc(1, request->vpath_len, 1 + document_root_len + 1 + sizeof("index.html"), 1);
1445 	char *p = buf, *prev_path = NULL, *q, *vpath;
1446 	size_t prev_path_len = 0;
1447 	int  is_static_file = 0;
1448 
1449 	memmove(p, document_root, document_root_len);
1450 	p += document_root_len;
1451 	vpath = p;
1452 	if (request->vpath_len != 0) {
1453 		if (request->vpath[0] != '/') {
1454 			*p++ = DEFAULT_SLASH;
1455 		}
1456 		q = request->vpath + request->vpath_len;
1457 		while (q > request->vpath) {
1458 			if (*q-- == '.') {
1459 				is_static_file = 1;
1460 				break;
1461 			}
1462 		}
1463 		memmove(p, request->vpath, request->vpath_len);
1464 #ifdef PHP_WIN32
1465 		q = p + request->vpath_len;
1466 		do {
1467 			if (*q == '/') {
1468 				*q = '\\';
1469 			}
1470 		} while (q-- > p);
1471 #endif
1472 		p += request->vpath_len;
1473 	}
1474 	*p = '\0';
1475 	q = p;
1476 	while (q > buf) {
1477 		if (!php_sys_stat(buf, &sb)) {
1478 			if (sb.st_mode & S_IFDIR) {
1479 				const char **file = index_files;
1480 				if (q[-1] != DEFAULT_SLASH) {
1481 					*q++ = DEFAULT_SLASH;
1482 				}
1483 				while (*file) {
1484 					size_t l = strlen(*file);
1485 					memmove(q, *file, l + 1);
1486 					if (!php_sys_stat(buf, &sb) && (sb.st_mode & S_IFREG)) {
1487 						q += l;
1488 						break;
1489 					}
1490 					file++;
1491 				}
1492 				if (!*file || is_static_file) {
1493 					if (prev_path) {
1494 						pefree(prev_path, 1);
1495 					}
1496 					pefree(buf, 1);
1497 					return;
1498 				}
1499 			}
1500 			break; /* regular file */
1501 		}
1502 		if (prev_path) {
1503 			pefree(prev_path, 1);
1504 			*q = DEFAULT_SLASH;
1505 		}
1506 		while (q > buf && *(--q) != DEFAULT_SLASH);
1507 		prev_path_len = p - q;
1508 		prev_path = pestrndup(q, prev_path_len, 1);
1509 		*q = '\0';
1510 	}
1511 	if (prev_path) {
1512 		request->path_info_len = prev_path_len;
1513 #ifdef PHP_WIN32
1514 		while (prev_path_len--) {
1515 			if (prev_path[prev_path_len] == '\\') {
1516 				prev_path[prev_path_len] = '/';
1517 			}
1518 		}
1519 #endif
1520 		request->path_info = prev_path;
1521 		pefree(request->vpath, 1);
1522 		request->vpath = pestrndup(vpath, q - vpath, 1);
1523 		request->vpath_len = q - vpath;
1524 		request->path_translated = buf;
1525 		request->path_translated_len = q - buf;
1526 	} else {
1527 		pefree(request->vpath, 1);
1528 		request->vpath = pestrndup(vpath, q - vpath, 1);
1529 		request->vpath_len = q - vpath;
1530 		request->path_translated = buf;
1531 		request->path_translated_len = q - buf;
1532 	}
1533 #ifdef PHP_WIN32
1534 	{
1535 		uint32_t i = 0;
1536 		for (;i<request->vpath_len;i++) {
1537 			if (request->vpath[i] == '\\') {
1538 				request->vpath[i] = '/';
1539 			}
1540 		}
1541 	}
1542 #endif
1543 	request->sb = sb;
1544 } /* }}} */
1545 
normalize_vpath(char ** retval,size_t * retval_len,const char * vpath,size_t vpath_len,int persistent)1546 static void normalize_vpath(char **retval, size_t *retval_len, const char *vpath, size_t vpath_len, int persistent) /* {{{ */
1547 {
1548 	char *decoded_vpath = NULL;
1549 	char *decoded_vpath_end;
1550 	char *p;
1551 
1552 	*retval = NULL;
1553 	*retval_len = 0;
1554 
1555 	decoded_vpath = pestrndup(vpath, vpath_len, persistent);
1556 	if (!decoded_vpath) {
1557 		return;
1558 	}
1559 
1560 	decoded_vpath_end = decoded_vpath + php_raw_url_decode(decoded_vpath, (int)vpath_len);
1561 
1562 #ifdef PHP_WIN32
1563 	{
1564 		char *p = decoded_vpath;
1565 
1566 		do {
1567 			if (*p == '\\') {
1568 				*p = '/';
1569 			}
1570 		} while (*p++);
1571 	}
1572 #endif
1573 
1574 	p = decoded_vpath;
1575 
1576 	if (p < decoded_vpath_end && *p == '/') {
1577 		char *n = p;
1578 		while (n < decoded_vpath_end && *n == '/') n++;
1579 		memmove(++p, n, decoded_vpath_end - n);
1580 		decoded_vpath_end -= n - p;
1581 	}
1582 
1583 	while (p < decoded_vpath_end) {
1584 		char *n = p;
1585 		while (n < decoded_vpath_end && *n != '/') n++;
1586 		if (n - p == 2 && p[0] == '.' && p[1] == '.') {
1587 			if (p > decoded_vpath) {
1588 				--p;
1589 				for (;;) {
1590 					if (p == decoded_vpath) {
1591 						if (*p == '/') {
1592 							p++;
1593 						}
1594 						break;
1595 					}
1596 					if (*(--p) == '/') {
1597 						p++;
1598 						break;
1599 					}
1600 				}
1601 			}
1602 			while (n < decoded_vpath_end && *n == '/') n++;
1603 			memmove(p, n, decoded_vpath_end - n);
1604 			decoded_vpath_end -= n - p;
1605 		} else if (n - p == 1 && p[0] == '.') {
1606 			while (n < decoded_vpath_end && *n == '/') n++;
1607 			memmove(p, n, decoded_vpath_end - n);
1608 			decoded_vpath_end -= n - p;
1609 		} else {
1610 			if (n < decoded_vpath_end) {
1611 				char *nn = n;
1612 				while (nn < decoded_vpath_end && *nn == '/') nn++;
1613 				p = n + 1;
1614 				memmove(p, nn, decoded_vpath_end - nn);
1615 				decoded_vpath_end -= nn - p;
1616 			} else {
1617 				p = n;
1618 			}
1619 		}
1620 	}
1621 
1622 	*decoded_vpath_end = '\0';
1623 	*retval = decoded_vpath;
1624 	*retval_len = decoded_vpath_end - decoded_vpath;
1625 } /* }}} */
1626 
1627 // TODO Update these functions and php_http_parser.h
1628 /* {{{ php_cli_server_client_read_request */
php_cli_server_client_read_request_on_message_begin(php_http_parser * parser)1629 static int php_cli_server_client_read_request_on_message_begin(php_http_parser *parser)
1630 {
1631 	return 0;
1632 }
1633 
php_cli_server_client_read_request_on_path(php_http_parser * parser,const char * at,size_t length)1634 static int php_cli_server_client_read_request_on_path(php_http_parser *parser, const char *at, size_t length)
1635 {
1636 	php_cli_server_client *client = parser->data;
1637 	{
1638 		char *vpath;
1639 		size_t vpath_len;
1640 		if (UNEXPECTED(client->request.vpath != NULL)) {
1641 			return 1;
1642 		}
1643 		normalize_vpath(&vpath, &vpath_len, at, length, 1);
1644 		client->request.vpath = vpath;
1645 		client->request.vpath_len = vpath_len;
1646 	}
1647 	return 0;
1648 }
1649 
php_cli_server_client_read_request_on_query_string(php_http_parser * parser,const char * at,size_t length)1650 static int php_cli_server_client_read_request_on_query_string(php_http_parser *parser, const char *at, size_t length)
1651 {
1652 	php_cli_server_client *client = parser->data;
1653 	if (EXPECTED(client->request.query_string == NULL)) {
1654 		client->request.query_string = pestrndup(at, length, 1);
1655 		client->request.query_string_len = length;
1656 	} else {
1657 		ZEND_ASSERT(length <= PHP_HTTP_MAX_HEADER_SIZE && PHP_HTTP_MAX_HEADER_SIZE - length >= client->request.query_string_len);
1658 		client->request.query_string = perealloc(client->request.query_string, client->request.query_string_len + length + 1, 1);
1659 		memcpy(client->request.query_string + client->request.query_string_len, at, length);
1660 		client->request.query_string_len += length;
1661 		client->request.query_string[client->request.query_string_len] = '\0';
1662 	}
1663 	return 0;
1664 }
1665 
php_cli_server_client_read_request_on_url(php_http_parser * parser,const char * at,size_t length)1666 static int php_cli_server_client_read_request_on_url(php_http_parser *parser, const char *at, size_t length)
1667 {
1668 	php_cli_server_client *client = parser->data;
1669 	if (EXPECTED(client->request.request_uri == NULL)) {
1670 		client->request.request_method = parser->method;
1671 		client->request.request_uri = zend_string_init(at, length, /* persistent */ true);
1672         GC_MAKE_PERSISTENT_LOCAL(client->request.request_uri);
1673 	} else {
1674 		ZEND_ASSERT(client->request.request_method == parser->method);
1675 		ZEND_ASSERT(length <= PHP_HTTP_MAX_HEADER_SIZE && PHP_HTTP_MAX_HEADER_SIZE - length >= client->request.query_string_len);
1676 		/* Extend URI, append content to it */
1677         client->request.request_uri = cli_concat_persistent_zstr_with_char(client->request.request_uri, at, length);
1678 	}
1679 	return 0;
1680 }
1681 
php_cli_server_client_read_request_on_fragment(php_http_parser * parser,const char * at,size_t length)1682 static int php_cli_server_client_read_request_on_fragment(php_http_parser *parser, const char *at, size_t length)
1683 {
1684 	return 0;
1685 }
1686 
php_cli_server_client_save_header(php_cli_server_client * client)1687 static void php_cli_server_client_save_header(php_cli_server_client *client)
1688 {
1689 	/* Wrap header value in a zval to add is to the HashTable which acts as an array */
1690 	zval tmp;
1691 	ZVAL_STR(&tmp, client->current_header_value);
1692 	/* strip off the colon */
1693 	zend_string *lc_header_name = zend_string_tolower_ex(client->current_header_name, /* persistent */ true);
1694 	GC_MAKE_PERSISTENT_LOCAL(lc_header_name);
1695 
1696 	/* Add the wrapped zend_string to the HashTable */
1697 	zend_hash_add(&client->request.headers, lc_header_name, &tmp);
1698 	zend_hash_add(&client->request.headers_original_case, client->current_header_name, &tmp);
1699 
1700 	zend_string_release_ex(lc_header_name, /* persistent */ true);
1701 	zend_string_release_ex(client->current_header_name, /* persistent */ true);
1702 
1703 	client->current_header_name = NULL;
1704 	client->current_header_value = NULL;
1705 }
1706 
cli_concat_persistent_zstr_with_char(zend_string * old_str,const char * at,size_t length)1707 static zend_string* cli_concat_persistent_zstr_with_char(zend_string *old_str, const char *at, size_t length)
1708 {
1709 	/* Assert that there is only one reference to the string, as then zend_string_extends()
1710 	 * will reallocate it such that we do not need to release the old value. */
1711 	ZEND_ASSERT(GC_REFCOUNT(old_str) == 1);
1712 	/* Previous element was part of header value, append content to it */
1713 	size_t old_length = ZSTR_LEN(old_str);
1714 	zend_string *str = zend_string_extend(old_str, old_length + length, /* persistent */ true);
1715 	memcpy(ZSTR_VAL(str) + old_length, at, length);
1716 	// Null terminate
1717 	ZSTR_VAL(str)[ZSTR_LEN(str)] = '\0';
1718 	return str;
1719 }
1720 
php_cli_server_client_read_request_on_header_field(php_http_parser * parser,const char * at,size_t length)1721 static int php_cli_server_client_read_request_on_header_field(php_http_parser *parser, const char *at, size_t length)
1722 {
1723 	php_cli_server_client *client = parser->data;
1724 	switch (client->last_header_element) {
1725 		case HEADER_VALUE:
1726 			/* Save previous header before creating new one */
1727 			php_cli_server_client_save_header(client);
1728 			ZEND_FALLTHROUGH;
1729 		case HEADER_NONE:
1730 			/* Create new header field */
1731 			client->current_header_name = zend_string_init(at, length, /* persistent */ true);
1732 			GC_MAKE_PERSISTENT_LOCAL(client->current_header_name);
1733 			break;
1734 		case HEADER_FIELD: {
1735 			/* Append header name to the previous value of it */
1736 			client->current_header_name = cli_concat_persistent_zstr_with_char(client->current_header_name, at, length);
1737 			break;
1738 		}
1739 	}
1740 
1741 	client->last_header_element = HEADER_FIELD;
1742 	return 0;
1743 }
1744 
php_cli_server_client_read_request_on_header_value(php_http_parser * parser,const char * at,size_t length)1745 static int php_cli_server_client_read_request_on_header_value(php_http_parser *parser, const char *at, size_t length)
1746 {
1747 	php_cli_server_client *client = parser->data;
1748 	switch (client->last_header_element) {
1749 		case HEADER_FIELD:
1750 			/* Previous element was the header field, create the header value */
1751 			client->current_header_value = zend_string_init(at, length, /* persistent */ true);
1752 			GC_MAKE_PERSISTENT_LOCAL(client->current_header_value);
1753 			break;
1754 		case HEADER_VALUE: {
1755 			/* Append header value to the previous value of it */
1756 			client->current_header_value = cli_concat_persistent_zstr_with_char(client->current_header_value, at, length);
1757 			break;
1758 		}
1759 		case HEADER_NONE:
1760 			/* Cannot happen as a header field must have been found before */
1761 			assert(0);
1762 			break;
1763 	}
1764 	client->last_header_element = HEADER_VALUE;
1765 	return 0;
1766 }
1767 
php_cli_server_client_read_request_on_headers_complete(php_http_parser * parser)1768 static int php_cli_server_client_read_request_on_headers_complete(php_http_parser *parser)
1769 {
1770 	php_cli_server_client *client = parser->data;
1771 	switch (client->last_header_element) {
1772 	case HEADER_NONE:
1773 		break;
1774 	case HEADER_FIELD:
1775 		/* Previous element was the header field, set it's value to an empty string */
1776 		client->current_header_value = ZSTR_EMPTY_ALLOC();
1777 		ZEND_FALLTHROUGH;
1778 	case HEADER_VALUE:
1779 		/* Save last header value */
1780 		php_cli_server_client_save_header(client);
1781 		break;
1782 	}
1783 	client->last_header_element = HEADER_NONE;
1784 	return 0;
1785 }
1786 
php_cli_server_client_read_request_on_body(php_http_parser * parser,const char * at,size_t length)1787 static int php_cli_server_client_read_request_on_body(php_http_parser *parser, const char *at, size_t length)
1788 {
1789 	php_cli_server_client *client = parser->data;
1790 	if (!client->request.content) {
1791 		client->request.content = pemalloc(parser->content_length, 1);
1792 		client->request.content_len = 0;
1793 	}
1794 	client->request.content = perealloc(client->request.content, client->request.content_len + length, 1);
1795 	memmove(client->request.content + client->request.content_len, at, length);
1796 	client->request.content_len += length;
1797 	return 0;
1798 }
1799 
php_cli_server_client_read_request_on_message_complete(php_http_parser * parser)1800 static int php_cli_server_client_read_request_on_message_complete(php_http_parser *parser)
1801 {
1802 	php_cli_server_client *client = parser->data;
1803 	client->request.protocol_version = parser->http_major * 100 + parser->http_minor;
1804 	php_cli_server_request_translate_vpath(&client->request, client->server->document_root, client->server->document_root_len);
1805 	if (client->request.vpath) {
1806 		const char *vpath = client->request.vpath;
1807 		const char *end = vpath + client->request.vpath_len;
1808 		const char *p = end;
1809 		client->request.ext = end;
1810 		client->request.ext_len = 0;
1811 		while (p > vpath) {
1812 			--p;
1813 			if (*p == '.') {
1814 				++p;
1815 				client->request.ext = p;
1816 				client->request.ext_len = end - p;
1817 				break;
1818 			}
1819 		}
1820 	}
1821 	client->request_read = true;
1822 	return 0;
1823 }
1824 
1825 /* Returns:
1826  -1 when an error occurs
1827   0 when the request has not been read (try again?)
1828   1 when the request has been read
1829 */
php_cli_server_client_read_request(php_cli_server_client * client,char ** errstr)1830 static int php_cli_server_client_read_request(php_cli_server_client *client, char **errstr)
1831 {
1832 	char buf[16384];
1833 	static const php_http_parser_settings settings = {
1834 		php_cli_server_client_read_request_on_message_begin,
1835 		php_cli_server_client_read_request_on_path,
1836 		php_cli_server_client_read_request_on_query_string,
1837 		php_cli_server_client_read_request_on_url,
1838 		php_cli_server_client_read_request_on_fragment,
1839 		php_cli_server_client_read_request_on_header_field,
1840 		php_cli_server_client_read_request_on_header_value,
1841 		php_cli_server_client_read_request_on_headers_complete,
1842 		php_cli_server_client_read_request_on_body,
1843 		php_cli_server_client_read_request_on_message_complete
1844 	};
1845 	size_t nbytes_consumed;
1846 	int nbytes_read;
1847 	if (client->request_read) {
1848 		return 1;
1849 	}
1850 	nbytes_read = recv(client->sock, buf, sizeof(buf) - 1, 0);
1851 	if (nbytes_read < 0) {
1852 		int err = php_socket_errno();
1853 		if (err == SOCK_EAGAIN) {
1854 			return 0;
1855 		}
1856 
1857 		if (php_cli_server_log_level >= PHP_CLI_SERVER_LOG_ERROR) {
1858 			*errstr = php_socket_strerror(err, NULL, 0);
1859 		}
1860 
1861 		return -1;
1862 	} else if (nbytes_read == 0) {
1863 		if (php_cli_server_log_level >= PHP_CLI_SERVER_LOG_ERROR) {
1864 			*errstr = estrdup(php_cli_server_request_error_unexpected_eof);
1865 		}
1866 
1867 		return -1;
1868 	}
1869 	client->parser.data = client;
1870 	nbytes_consumed = php_http_parser_execute(&client->parser, &settings, buf, nbytes_read);
1871 	if (nbytes_consumed != (size_t)nbytes_read) {
1872 		if (php_cli_server_log_level >= PHP_CLI_SERVER_LOG_ERROR) {
1873 			if ((buf[0] & 0x80) /* SSLv2 */ || buf[0] == 0x16 /* SSLv3/TLSv1 */) {
1874 				*errstr = estrdup("Unsupported SSL request");
1875 			} else {
1876 				*errstr = estrdup("Malformed HTTP request");
1877 			}
1878 		}
1879 
1880 		return -1;
1881 	}
1882 
1883 	return client->request_read ? 1: 0;
1884 }
1885 /* }}} */
1886 
php_cli_server_client_send_through(php_cli_server_client * client,const char * str,size_t str_len)1887 static size_t php_cli_server_client_send_through(php_cli_server_client *client, const char *str, size_t str_len) /* {{{ */
1888 {
1889 	struct timeval tv = { 10, 0 };
1890 #ifdef PHP_WIN32
1891 	int nbytes_left = (int)str_len;
1892 #else
1893 	ssize_t nbytes_left = (ssize_t)str_len;
1894 #endif
1895 	do {
1896 #ifdef PHP_WIN32
1897 		int nbytes_sent;
1898 #else
1899 		ssize_t nbytes_sent;
1900 #endif
1901 
1902 		nbytes_sent = send(client->sock, str + str_len - nbytes_left, nbytes_left, 0);
1903 		if (nbytes_sent < 0) {
1904 			int err = php_socket_errno();
1905 			if (err == SOCK_EAGAIN) {
1906 				int nfds = php_pollfd_for(client->sock, POLLOUT, &tv);
1907 				if (nfds > 0) {
1908 					continue;
1909 				} else {
1910 					/* error or timeout */
1911 					php_handle_aborted_connection();
1912 					return nbytes_left;
1913 				}
1914 			} else {
1915 				php_handle_aborted_connection();
1916 				return nbytes_left;
1917 			}
1918 		}
1919 		nbytes_left -= nbytes_sent;
1920 	} while (nbytes_left > 0);
1921 
1922 	return str_len;
1923 } /* }}} */
1924 
php_cli_server_client_populate_request_info(const php_cli_server_client * client,sapi_request_info * request_info)1925 static void php_cli_server_client_populate_request_info(const php_cli_server_client *client, sapi_request_info *request_info) /* {{{ */
1926 {
1927 	zval *val;
1928 
1929 	request_info->request_method = php_http_method_str(client->request.request_method);
1930 	request_info->proto_num = client->request.protocol_version;
1931 	request_info->request_uri = ZSTR_VAL(client->request.request_uri);
1932 	request_info->path_translated = client->request.path_translated;
1933 	request_info->query_string = client->request.query_string;
1934 	request_info->content_length = client->request.content_len;
1935 	request_info->auth_user = request_info->auth_password = request_info->auth_digest = NULL;
1936 	if (NULL != (val = zend_hash_str_find(&client->request.headers, "content-type", sizeof("content-type")-1))) {
1937 		request_info->content_type = Z_STRVAL_P(val);
1938 	}
1939 } /* }}} */
1940 
1941 // TODO Remove?
destroy_request_info(sapi_request_info * request_info)1942 static void destroy_request_info(sapi_request_info *request_info) /* {{{ */
1943 {
1944 } /* }}} */
1945 
php_cli_server_client_ctor(php_cli_server_client * client,php_cli_server * server,php_socket_t client_sock,struct sockaddr * addr,socklen_t addr_len)1946 static void php_cli_server_client_ctor(php_cli_server_client *client, php_cli_server *server, php_socket_t client_sock, struct sockaddr *addr, socklen_t addr_len) /* {{{ */
1947 {
1948 	client->server = server;
1949 	client->sock = client_sock;
1950 	client->addr = addr;
1951 	client->addr_len = addr_len;
1952 
1953 	// TODO To prevent the reallocation need to retrieve a persistent string
1954 	// Create a new php_network_populate_name_from_sockaddr_ex() API with a persistent flag?
1955 	zend_string *tmp_addr = NULL;
1956 	php_network_populate_name_from_sockaddr(addr, addr_len, &tmp_addr, NULL, 0);
1957 	client->addr_str = zend_string_dup(tmp_addr, /* persistent */ true);
1958 	GC_MAKE_PERSISTENT_LOCAL(client->addr_str);
1959 	zend_string_release_ex(tmp_addr, /* persistent */ false);
1960 
1961 	php_http_parser_init(&client->parser, PHP_HTTP_REQUEST);
1962 	client->request_read = false;
1963 
1964 	client->last_header_element = HEADER_NONE;
1965 	client->current_header_name = NULL;
1966 	client->current_header_value = NULL;
1967 
1968 	client->post_read_offset = 0;
1969 
1970 	php_cli_server_request_ctor(&client->request);
1971 
1972 	client->content_sender_initialized = false;
1973 	client->file_fd = -1;
1974 } /* }}} */
1975 
php_cli_server_client_dtor(php_cli_server_client * client)1976 static void php_cli_server_client_dtor(php_cli_server_client *client) /* {{{ */
1977 {
1978 	php_cli_server_request_dtor(&client->request);
1979 	if (client->file_fd >= 0) {
1980 		close(client->file_fd);
1981 		client->file_fd = -1;
1982 	}
1983 	pefree(client->addr, 1);
1984 	zend_string_release_ex(client->addr_str, /* persistent */ true);
1985 
1986 	if (client->content_sender_initialized) {
1987 		/* Headers must be set if we reached the content initialisation */
1988 		assert(client->current_header_name == NULL);
1989 		assert(client->current_header_value == NULL);
1990 		php_cli_server_content_sender_dtor(&client->content_sender);
1991 	}
1992 } /* }}} */
1993 
php_cli_server_close_connection(php_cli_server * server,php_cli_server_client * client)1994 static void php_cli_server_close_connection(php_cli_server *server, php_cli_server_client *client) /* {{{ */
1995 {
1996 	php_cli_server_logf(PHP_CLI_SERVER_LOG_MESSAGE, "%s Closing", ZSTR_VAL(client->addr_str));
1997 
1998 	zend_hash_index_del(&server->clients, client->sock);
1999 } /* }}} */
2000 
php_cli_server_send_error_page(php_cli_server * server,php_cli_server_client * client,int status)2001 static zend_result php_cli_server_send_error_page(php_cli_server *server, php_cli_server_client *client, int status) /* {{{ */
2002 {
2003 	zend_string *escaped_request_uri = NULL;
2004 	const char *status_string = get_status_string(status);
2005 	const char *content_template = get_template_string(status);
2006 	char *errstr = get_last_error();
2007 	assert(status_string && content_template);
2008 
2009 	php_cli_server_content_sender_ctor(&client->content_sender);
2010 	client->content_sender_initialized = true;
2011 
2012 	if (client->request.request_method != PHP_HTTP_HEAD) {
2013 		escaped_request_uri = php_escape_html_entities_ex((const unsigned char *) ZSTR_VAL(client->request.request_uri), ZSTR_LEN(client->request.request_uri), 0, ENT_QUOTES, NULL, /* double_encode */ 0, /* quiet */ 0);
2014 
2015 		{
2016 			static const char prologue_template[] = "<!doctype html><html><head><title>%d %s</title>";
2017 			php_cli_server_chunk *chunk = php_cli_server_chunk_heap_new_self_contained(strlen(prologue_template) + 3 + strlen(status_string) + 1);
2018 			if (!chunk) {
2019 				goto fail;
2020 			}
2021 			snprintf(chunk->data.heap.p, chunk->data.heap.len, prologue_template, status, status_string);
2022 			chunk->data.heap.len = strlen(chunk->data.heap.p);
2023 			php_cli_server_buffer_append(&client->content_sender.buffer, chunk);
2024 		}
2025 		{
2026 			php_cli_server_chunk *chunk = php_cli_server_chunk_immortal_new(php_cli_server_css, sizeof(php_cli_server_css) - 1);
2027 			if (!chunk) {
2028 				goto fail;
2029 			}
2030 			php_cli_server_buffer_append(&client->content_sender.buffer, chunk);
2031 		}
2032 		{
2033 			static const char template[] = "</head><body>";
2034 			php_cli_server_chunk *chunk = php_cli_server_chunk_immortal_new(template, sizeof(template) - 1);
2035 			if (!chunk) {
2036 				goto fail;
2037 			}
2038 			php_cli_server_buffer_append(&client->content_sender.buffer, chunk);
2039 		}
2040 		{
2041 			php_cli_server_chunk *chunk = php_cli_server_chunk_heap_new_self_contained(strlen(content_template) + ZSTR_LEN(escaped_request_uri) + 3 + strlen(status_string) + 1);
2042 			if (!chunk) {
2043 				goto fail;
2044 			}
2045 			snprintf(chunk->data.heap.p, chunk->data.heap.len, content_template, status_string, ZSTR_VAL(escaped_request_uri));
2046 			chunk->data.heap.len = strlen(chunk->data.heap.p);
2047 			php_cli_server_buffer_append(&client->content_sender.buffer, chunk);
2048 		}
2049 		{
2050 			static const char epilogue_template[] = "</body></html>";
2051 			php_cli_server_chunk *chunk = php_cli_server_chunk_immortal_new(epilogue_template, sizeof(epilogue_template) - 1);
2052 			if (!chunk) {
2053 				goto fail;
2054 			}
2055 			php_cli_server_buffer_append(&client->content_sender.buffer, chunk);
2056 		}
2057 	}
2058 
2059 	{
2060 		php_cli_server_chunk *chunk;
2061 		smart_str buffer = { 0 };
2062 		append_http_status_line(&buffer, client->request.protocol_version, status, 1);
2063 		if (!buffer.s) {
2064 			/* out of memory */
2065 			goto fail;
2066 		}
2067 		append_essential_headers(&buffer, client, 1, NULL);
2068 		smart_str_appends_ex(&buffer, "Content-Type: text/html; charset=UTF-8\r\n", 1);
2069 		smart_str_appends_ex(&buffer, "Content-Length: ", 1);
2070 		smart_str_append_unsigned_ex(&buffer, php_cli_server_buffer_size(&client->content_sender.buffer), 1);
2071 		smart_str_appendl_ex(&buffer, "\r\n", 2, 1);
2072 		if (status == 405) {
2073 			smart_str_appends_ex(&buffer, "Allow: ", 1);
2074 			smart_str_appends_ex(&buffer, php_http_method_str(PHP_HTTP_GET), 1);
2075 			smart_str_appends_ex(&buffer, ", ", 1);
2076 			smart_str_appends_ex(&buffer, php_http_method_str(PHP_HTTP_HEAD), 1);
2077 			smart_str_appends_ex(&buffer, ", ", 1);
2078 			smart_str_appends_ex(&buffer, php_http_method_str(PHP_HTTP_POST), 1);
2079 			smart_str_appendl_ex(&buffer, "\r\n", 2, 1);
2080 		}
2081 		smart_str_appendl_ex(&buffer, "\r\n", 2, 1);
2082 
2083 		chunk = php_cli_server_chunk_heap_new(buffer.s, ZSTR_VAL(buffer.s), ZSTR_LEN(buffer.s));
2084 		if (!chunk) {
2085 			smart_str_free_ex(&buffer, 1);
2086 			goto fail;
2087 		}
2088 		php_cli_server_buffer_prepend(&client->content_sender.buffer, chunk);
2089 	}
2090 
2091 	php_cli_server_log_response(client, status, errstr ? errstr : "?");
2092 	php_cli_server_poller_add(&server->poller, POLLOUT, client->sock);
2093 	if (errstr) {
2094 		pefree(errstr, 1);
2095 	}
2096 	if (escaped_request_uri) {
2097 		zend_string_free(escaped_request_uri);
2098 	}
2099 	return SUCCESS;
2100 
2101 fail:
2102 	if (errstr) {
2103 		pefree(errstr, 1);
2104 	}
2105 	if (escaped_request_uri) {
2106 		zend_string_free(escaped_request_uri);
2107 	}
2108 	return FAILURE;
2109 } /* }}} */
2110 
php_cli_server_dispatch_script(php_cli_server * server,php_cli_server_client * client)2111 static zend_result php_cli_server_dispatch_script(php_cli_server *server, php_cli_server_client *client) /* {{{ */
2112 {
2113 	if (strlen(client->request.path_translated) != client->request.path_translated_len) {
2114 		/* can't handle paths that contain nul bytes */
2115 		return php_cli_server_send_error_page(server, client, 400);
2116 	}
2117 
2118 	zend_file_handle zfd;
2119 	zend_stream_init_filename(&zfd, SG(request_info).path_translated);
2120 	zfd.primary_script = 1;
2121 	zend_try {
2122 		php_execute_script(&zfd);
2123 	} zend_end_try();
2124 	zend_destroy_file_handle(&zfd);
2125 
2126 	php_cli_server_log_response(client, SG(sapi_headers).http_response_code, NULL);
2127 	return SUCCESS;
2128 } /* }}} */
2129 
php_cli_server_begin_send_static(php_cli_server * server,php_cli_server_client * client)2130 static zend_result php_cli_server_begin_send_static(php_cli_server *server, php_cli_server_client *client) /* {{{ */
2131 {
2132 	int fd;
2133 	int status = 200;
2134 
2135 	if (client->request.request_method == PHP_HTTP_DELETE
2136 		|| client->request.request_method == PHP_HTTP_PUT
2137 		|| client->request.request_method == PHP_HTTP_PATCH) {
2138 		return php_cli_server_send_error_page(server, client, 405);
2139 	}
2140 
2141 	if (client->request.path_translated && strlen(client->request.path_translated) != client->request.path_translated_len) {
2142 		/* can't handle paths that contain nul bytes */
2143 		return php_cli_server_send_error_page(server, client, 400);
2144 	}
2145 
2146 #ifdef PHP_WIN32
2147 	/* The win32 namespace will cut off trailing dots and spaces. Since the
2148 	   VCWD functionality isn't used here, a sophisticated functionality
2149 	   would have to be reimplemented to know ahead there are no files
2150 	   with invalid names there. The simplest is just to forbid invalid
2151 	   filenames, which is done here. */
2152 	if (client->request.path_translated &&
2153 		('.' == client->request.path_translated[client->request.path_translated_len-1] ||
2154 		 ' ' == client->request.path_translated[client->request.path_translated_len-1])) {
2155 		return php_cli_server_send_error_page(server, client, 500);
2156 	}
2157 
2158 	fd = client->request.path_translated ? php_win32_ioutil_open(client->request.path_translated, O_RDONLY): -1;
2159 #else
2160 	fd = client->request.path_translated ? open(client->request.path_translated, O_RDONLY): -1;
2161 #endif
2162 	if (fd < 0) {
2163 		return php_cli_server_send_error_page(server, client, 404);
2164 	}
2165 
2166 	php_cli_server_content_sender_ctor(&client->content_sender);
2167 	client->content_sender_initialized = true;
2168 	if (client->request.request_method != PHP_HTTP_HEAD) {
2169 		client->file_fd = fd;
2170 	}
2171 
2172 	{
2173 		php_cli_server_chunk *chunk;
2174 		smart_str buffer = { 0 };
2175 		const char *mime_type = get_mime_type(server, client->request.ext, client->request.ext_len);
2176 
2177 		append_http_status_line(&buffer, client->request.protocol_version, status, 1);
2178 		if (!buffer.s) {
2179 			/* out of memory */
2180 			php_cli_server_log_response(client, 500, NULL);
2181 			return FAILURE;
2182 		}
2183 		append_essential_headers(&buffer, client, 1, NULL);
2184 		if (mime_type) {
2185 			smart_str_appendl_ex(&buffer, "Content-Type: ", sizeof("Content-Type: ") - 1, 1);
2186 			smart_str_appends_ex(&buffer, mime_type, 1);
2187 			if (strncmp(mime_type, "text/", 5) == 0) {
2188 				smart_str_appends_ex(&buffer, "; charset=UTF-8", 1);
2189 			}
2190 			smart_str_appendl_ex(&buffer, "\r\n", 2, 1);
2191 		}
2192 		smart_str_appends_ex(&buffer, "Content-Length: ", 1);
2193 		smart_str_append_unsigned_ex(&buffer, client->request.sb.st_size, 1);
2194 		smart_str_appendl_ex(&buffer, "\r\n", 2, 1);
2195 		smart_str_appendl_ex(&buffer, "\r\n", 2, 1);
2196 		chunk = php_cli_server_chunk_heap_new(buffer.s, ZSTR_VAL(buffer.s), ZSTR_LEN(buffer.s));
2197 		if (!chunk) {
2198 			smart_str_free_ex(&buffer, 1);
2199 			php_cli_server_log_response(client, 500, NULL);
2200 			return FAILURE;
2201 		}
2202 		php_cli_server_buffer_append(&client->content_sender.buffer, chunk);
2203 	}
2204 	php_cli_server_log_response(client, 200, NULL);
2205 	php_cli_server_poller_add(&server->poller, POLLOUT, client->sock);
2206 	return SUCCESS;
2207 }
2208 /* }}} */
2209 
php_cli_server_request_startup(php_cli_server * server,php_cli_server_client * client)2210 static zend_result php_cli_server_request_startup(php_cli_server *server, php_cli_server_client *client) { /* {{{ */
2211 	zval *auth;
2212 	php_cli_server_client_populate_request_info(client, &SG(request_info));
2213 	if (NULL != (auth = zend_hash_str_find(&client->request.headers, "authorization", sizeof("authorization")-1))) {
2214 		php_handle_auth_data(Z_STRVAL_P(auth));
2215 	}
2216 	SG(sapi_headers).http_response_code = 200;
2217 	if (FAILURE == php_request_startup()) {
2218 		return FAILURE;
2219 	}
2220 	PG(during_request_startup) = 0;
2221 
2222 	return SUCCESS;
2223 }
2224 /* }}} */
2225 
php_cli_server_request_shutdown(php_cli_server * server,php_cli_server_client * client)2226 static void php_cli_server_request_shutdown(php_cli_server *server, php_cli_server_client *client) { /* {{{ */
2227 	php_request_shutdown(0);
2228 	php_cli_server_close_connection(server, client);
2229 	destroy_request_info(&SG(request_info));
2230 	SG(server_context) = NULL;
2231 	SG(rfc1867_uploaded_files) = NULL;
2232 }
2233 /* }}} */
2234 
php_cli_server_dispatch_router(php_cli_server * server,php_cli_server_client * client)2235 static bool php_cli_server_dispatch_router(php_cli_server *server, php_cli_server_client *client) /* {{{ */
2236 {
2237 	bool decline = false;
2238 	zend_file_handle zfd;
2239 	char *old_cwd;
2240 
2241 	ALLOCA_FLAG(use_heap)
2242 	old_cwd = do_alloca(MAXPATHLEN, use_heap);
2243 	old_cwd[0] = '\0';
2244 	php_ignore_value(VCWD_GETCWD(old_cwd, MAXPATHLEN - 1));
2245 
2246 	zend_stream_init_filename(&zfd, server->router);
2247 	zfd.primary_script = 1;
2248 
2249 	zend_try {
2250 		zval retval;
2251 
2252 		/* Normally php_execute_script restarts the timer with max_execution_time if it has
2253 		 * previously been initialized with max_input_time. We're not using php_execute_script here
2254 		 * because it does not provide a way to get the return value of the main script, so we need
2255 		 * to restart the timer manually. */
2256 		if (PG(max_input_time) != -1) {
2257 #ifdef PHP_WIN32
2258 			zend_unset_timeout();
2259 #endif
2260 			zend_set_timeout(INI_INT("max_execution_time"), 0);
2261 		}
2262 
2263 		ZVAL_UNDEF(&retval);
2264 		if (SUCCESS == zend_execute_scripts(ZEND_REQUIRE, &retval, 1, &zfd)) {
2265 			if (Z_TYPE(retval) != IS_UNDEF) {
2266 				decline = Z_TYPE(retval) == IS_FALSE;
2267 				zval_ptr_dtor(&retval);
2268 			}
2269 		}
2270 	} zend_end_try();
2271 
2272 	zend_destroy_file_handle(&zfd);
2273 
2274 	if (old_cwd[0] != '\0') {
2275 		php_ignore_value(VCWD_CHDIR(old_cwd));
2276 	}
2277 
2278 	free_alloca(old_cwd, use_heap);
2279 
2280 	return decline;
2281 }
2282 /* }}} */
2283 
php_cli_server_dispatch(php_cli_server * server,php_cli_server_client * client)2284 static zend_result php_cli_server_dispatch(php_cli_server *server, php_cli_server_client *client) /* {{{ */
2285 {
2286 	int is_static_file  = 0;
2287 	const char *ext = client->request.ext;
2288 
2289 	SG(server_context) = client;
2290 	if (client->request.ext_len != 3
2291 	 || (ext[0] != 'p' && ext[0] != 'P') || (ext[1] != 'h' && ext[1] != 'H') || (ext[2] != 'p' && ext[2] != 'P')
2292 	 || !client->request.path_translated) {
2293 		is_static_file = 1;
2294 	}
2295 
2296 	if (server->router || !is_static_file) {
2297 		if (FAILURE == php_cli_server_request_startup(server, client)) {
2298 			php_cli_server_request_shutdown(server, client);
2299 			return FAILURE;
2300 		}
2301 	}
2302 
2303 	if (server->router) {
2304 		if (!php_cli_server_dispatch_router(server, client)) {
2305 			php_cli_server_request_shutdown(server, client);
2306 			return SUCCESS;
2307 		}
2308 	}
2309 
2310 	if (!is_static_file) {
2311 		// TODO What?
2312 		if (SUCCESS == php_cli_server_dispatch_script(server, client)
2313 				|| FAILURE == php_cli_server_send_error_page(server, client, 500)) {
2314 			if (SG(sapi_headers).http_response_code == 304) {
2315 				SG(sapi_headers).send_default_content_type = 0;
2316 			}
2317 			php_cli_server_request_shutdown(server, client);
2318 			return SUCCESS;
2319 		}
2320 	} else {
2321 		if (server->router) {
2322 			static int (*send_header_func)(sapi_headers_struct *);
2323 			send_header_func = sapi_module.send_headers;
2324 			/* do not generate default content type header */
2325 			SG(sapi_headers).send_default_content_type = 0;
2326 			/* we don't want headers to be sent */
2327 			sapi_module.send_headers = sapi_cli_server_discard_headers;
2328 			php_request_shutdown(0);
2329 			sapi_module.send_headers = send_header_func;
2330 			SG(sapi_headers).send_default_content_type = 1;
2331 			SG(rfc1867_uploaded_files) = NULL;
2332 		}
2333 		if (FAILURE == php_cli_server_begin_send_static(server, client)) {
2334 			php_cli_server_close_connection(server, client);
2335 		}
2336 		SG(server_context) = NULL;
2337 		return SUCCESS;
2338 	}
2339 
2340 	SG(server_context) = NULL;
2341 	destroy_request_info(&SG(request_info));
2342 	return SUCCESS;
2343 }
2344 /* }}} */
2345 
php_cli_server_mime_type_ctor(php_cli_server * server,const php_cli_server_ext_mime_type_pair * mime_type_map)2346 static void php_cli_server_mime_type_ctor(php_cli_server *server, const php_cli_server_ext_mime_type_pair *mime_type_map) /* {{{ */
2347 {
2348 	const php_cli_server_ext_mime_type_pair *pair;
2349 
2350 	zend_hash_init(&server->extension_mime_types, 0, NULL, NULL, 1);
2351 	GC_MAKE_PERSISTENT_LOCAL(&server->extension_mime_types);
2352 
2353 	for (pair = mime_type_map; pair->ext; pair++) {
2354 		size_t ext_len = strlen(pair->ext);
2355 		zend_hash_str_add_ptr(&server->extension_mime_types, pair->ext, ext_len, (void*)pair->mime_type);
2356 	}
2357 } /* }}} */
2358 
php_cli_server_dtor(php_cli_server * server)2359 static void php_cli_server_dtor(php_cli_server *server) /* {{{ */
2360 {
2361 	zend_hash_destroy(&server->clients);
2362 	zend_hash_destroy(&server->extension_mime_types);
2363 	if (ZEND_VALID_SOCKET(server->server_sock)) {
2364 		closesocket(server->server_sock);
2365 	}
2366 	if (server->host) {
2367 		pefree(server->host, 1);
2368 	}
2369 	if (server->document_root) {
2370 		pefree(server->document_root, 1);
2371 	}
2372 	if (server->router) {
2373 		pefree(server->router, 1);
2374 	}
2375 #if HAVE_FORK
2376 	if (php_cli_server_workers_max > 1 &&
2377 		php_cli_server_workers &&
2378 		getpid() == php_cli_server_master) {
2379 		zend_long php_cli_server_worker;
2380 
2381 		for (php_cli_server_worker = 0;
2382 			 php_cli_server_worker < php_cli_server_workers_max;
2383 			 php_cli_server_worker++) {
2384 			 int php_cli_server_worker_status;
2385 
2386 			 do {
2387 				if (waitpid(php_cli_server_workers[php_cli_server_worker],
2388 						   &php_cli_server_worker_status,
2389 						   0) == FAILURE) {
2390 					/* an extremely bad thing happened */
2391 					break;
2392 				}
2393 
2394 			 } while (!WIFEXITED(php_cli_server_worker_status) &&
2395 					  !WIFSIGNALED(php_cli_server_worker_status));
2396 		}
2397 
2398 		pefree(php_cli_server_workers, 1);
2399 	}
2400 #endif
2401 } /* }}} */
2402 
php_cli_server_client_dtor_wrapper(zval * zv)2403 static void php_cli_server_client_dtor_wrapper(zval *zv) /* {{{ */
2404 {
2405 	php_cli_server_client *p = Z_PTR_P(zv);
2406 
2407 	shutdown(p->sock, SHUT_RDWR);
2408 	closesocket(p->sock);
2409 	php_cli_server_poller_remove(&p->server->poller, POLLIN | POLLOUT, p->sock);
2410 	php_cli_server_client_dtor(p);
2411 	pefree(p, 1);
2412 } /* }}} */
2413 
2414 /**
2415  * Parse the host and port portions of an address specifier in
2416  * one of the following forms:
2417  * - hostOrIP:port
2418  * - [hostOrIP]:port
2419  */
php_cli_server_parse_addr(const char * addr,int * pport)2420 static char *php_cli_server_parse_addr(const char *addr, int *pport) {
2421 	const char *p, *end;
2422 	long port;
2423 
2424 	if (addr[0] == '[') {
2425 		/* Encapsulated [hostOrIP]:port */
2426 		const char *start = addr + 1;
2427 		end = strchr(start, ']');
2428 		if (!end) {
2429 			/* No ending ] delimiter to match [ */
2430 			return NULL;
2431 		}
2432 
2433 		p = end + 1;
2434 		if (*p != ':') {
2435 			/* Invalid char following address/missing port */
2436 			return NULL;
2437 		}
2438 
2439 		port = strtol(p + 1, (char**)&p, 10);
2440 		if (p && *p) {
2441 			/* Non-numeric in port */
2442 			return NULL;
2443 		}
2444 		if (port < 0 || port > 65535) {
2445 			/* Invalid port */
2446 			return NULL;
2447 		}
2448 
2449 		/* Full [hostOrIP]:port provided */
2450 		*pport = (int)port;
2451 		return pestrndup(start, end - start, 1);
2452 	}
2453 
2454 	end = strchr(addr, ':');
2455 	if (!end) {
2456 		/* Missing port */
2457 		return NULL;
2458 	}
2459 
2460 	port = strtol(end + 1, (char**)&p, 10);
2461 	if (p && *p) {
2462 		/* Non-numeric port */
2463 		return NULL;
2464 	}
2465 	if (port < 0 || port > 65535) {
2466 		/* Invalid port */
2467 		return NULL;
2468 	}
2469 	*pport = (int)port;
2470 	return pestrndup(addr, end - addr, 1);
2471 }
2472 
2473 #if defined(HAVE_PRCTL) || defined(HAVE_PROCCTL)
php_cli_server_worker_install_pdeathsig(void)2474 static void php_cli_server_worker_install_pdeathsig(void)
2475 {
2476 	// Ignore failure to register PDEATHSIG, it's not available on all platforms anyway
2477 #if defined(HAVE_PRCTL)
2478 	prctl(PR_SET_PDEATHSIG, SIGTERM);
2479 #elif defined(HAVE_PROCCTL)
2480 	int signal = SIGTERM;
2481 	procctl(P_PID, 0, PROC_PDEATHSIG_CTL, &signal);
2482 #endif
2483 
2484 	// Check if parent has exited just after the fork
2485 	if (getppid() != php_cli_server_master) {
2486 		exit(1);
2487 	}
2488 }
2489 #endif
2490 
php_cli_server_startup_workers(void)2491 static void php_cli_server_startup_workers(void) {
2492 	char *workers = getenv("PHP_CLI_SERVER_WORKERS");
2493 	if (!workers) {
2494 		return;
2495 	}
2496 
2497 #if HAVE_FORK
2498 	php_cli_server_workers_max = ZEND_ATOL(workers);
2499 	if (php_cli_server_workers_max > 1) {
2500 		zend_long php_cli_server_worker;
2501 
2502 		php_cli_server_workers = pecalloc(
2503 			php_cli_server_workers_max, sizeof(pid_t), 1);
2504 
2505 		php_cli_server_master = getpid();
2506 
2507 		for (php_cli_server_worker = 0;
2508 			 php_cli_server_worker < php_cli_server_workers_max;
2509 			 php_cli_server_worker++) {
2510 			pid_t pid = fork();
2511 
2512 			if (pid < 0) {
2513 				/* no more forks allowed, work with what we have ... */
2514 				php_cli_server_workers_max =
2515 					php_cli_server_worker + 1;
2516 				return;
2517 			} else if (pid == 0) {
2518 #if defined(HAVE_PRCTL) || defined(HAVE_PROCCTL)
2519 				php_cli_server_worker_install_pdeathsig();
2520 #endif
2521 				return;
2522 			} else {
2523 				php_cli_server_workers[php_cli_server_worker] = pid;
2524 			}
2525 		}
2526 	} else {
2527 		fprintf(stderr, "number of workers must be larger than 1\n");
2528 	}
2529 #else
2530 	fprintf(stderr, "forking is not supported on this platform\n");
2531 #endif
2532 }
2533 
php_cli_server_ctor(php_cli_server * server,const char * addr,const char * document_root,const char * router)2534 static zend_result php_cli_server_ctor(php_cli_server *server, const char *addr, const char *document_root, const char *router) /* {{{ */
2535 {
2536 	zend_result retval = SUCCESS;
2537 	char *host = NULL;
2538 	zend_string *errstr = NULL;
2539 	char *_document_root = NULL;
2540 	char *_router = NULL;
2541 	int port = 3000;
2542 	php_socket_t server_sock = SOCK_ERR;
2543 
2544 	host = php_cli_server_parse_addr(addr, &port);
2545 	if (!host) {
2546 		fprintf(stderr, "Invalid address: %s\n", addr);
2547 		retval = FAILURE;
2548 		goto out;
2549 	}
2550 
2551 	server_sock = php_network_listen_socket(host, &port, SOCK_STREAM, &server->address_family, &server->socklen, &errstr);
2552 	if (server_sock == SOCK_ERR) {
2553 		php_cli_server_logf(PHP_CLI_SERVER_LOG_ERROR, "Failed to listen on %s:%d (reason: %s)", host, port, errstr ? ZSTR_VAL(errstr) : "?");
2554 		if (errstr) {
2555 			zend_string_release_ex(errstr, 0);
2556 		}
2557 		retval = FAILURE;
2558 		goto out;
2559 	}
2560 	// server_sock needs to be non-blocking when using multiple processes. Without it, the first process would
2561 	// successfully accept the connection but the others would block, causing client sockets of the same select
2562 	// call not to be handled.
2563 	if (SUCCESS != php_set_sock_blocking(server_sock, 0)) {
2564 		php_cli_server_logf(PHP_CLI_SERVER_LOG_ERROR, "Failed to make server socket non-blocking");
2565 		retval = FAILURE;
2566 		goto out;
2567 	}
2568 	server->server_sock = server_sock;
2569 
2570 	php_cli_server_startup_workers();
2571 
2572 	php_cli_server_poller_ctor(&server->poller);
2573 
2574 	php_cli_server_poller_add(&server->poller, POLLIN, server_sock);
2575 
2576 	server->host = host;
2577 	server->port = port;
2578 
2579 	zend_hash_init(&server->clients, 0, NULL, php_cli_server_client_dtor_wrapper, 1);
2580 
2581 	{
2582 		size_t document_root_len = strlen(document_root);
2583 		_document_root = pestrndup(document_root, document_root_len, 1);
2584 		server->document_root = _document_root;
2585 		server->document_root_len = document_root_len;
2586 	}
2587 
2588 	if (router) {
2589 		size_t router_len = strlen(router);
2590 		_router = pestrndup(router, router_len, 1);
2591 		server->router = _router;
2592 		server->router_len = router_len;
2593 	} else {
2594 		server->router = NULL;
2595 		server->router_len = 0;
2596 	}
2597 
2598 	php_cli_server_mime_type_ctor(server, mime_type_map);
2599 
2600 	server->is_running = 1;
2601 out:
2602 	if (retval == FAILURE) {
2603 		if (host) {
2604 			pefree(host, 1);
2605 		}
2606 		if (_document_root) {
2607 			pefree(_document_root, 1);
2608 		}
2609 		if (_router) {
2610 			pefree(_router, 1);
2611 		}
2612 		if (server_sock > -1) {
2613 			closesocket(server_sock);
2614 		}
2615 	}
2616 	return retval;
2617 } /* }}} */
2618 
php_cli_server_recv_event_read_request(php_cli_server * server,php_cli_server_client * client)2619 static zend_result php_cli_server_recv_event_read_request(php_cli_server *server, php_cli_server_client *client) /* {{{ */
2620 {
2621 	char *errstr = NULL;
2622 
2623 	switch (php_cli_server_client_read_request(client, &errstr)) {
2624 		case -1:
2625 			if (errstr) {
2626 				if (strcmp(errstr, php_cli_server_request_error_unexpected_eof) == 0 && client->parser.state == s_start_req) {
2627 					php_cli_server_logf(PHP_CLI_SERVER_LOG_MESSAGE,
2628 						"%s Closed without sending a request; it was probably just an unused speculative preconnection", ZSTR_VAL(client->addr_str));
2629 				} else {
2630 					php_cli_server_logf(PHP_CLI_SERVER_LOG_ERROR, "%s Invalid request (%s)", ZSTR_VAL(client->addr_str), errstr);
2631 				}
2632 				efree(errstr);
2633 			}
2634 			php_cli_server_close_connection(server, client);
2635 			return FAILURE;
2636 		case 1:
2637 			if (client->request.request_method == PHP_HTTP_NOT_IMPLEMENTED) {
2638 				return php_cli_server_send_error_page(server, client, 501);
2639 			}
2640 			php_cli_server_poller_remove(&server->poller, POLLIN, client->sock);
2641 			return php_cli_server_dispatch(server, client);
2642 		case 0:
2643 			php_cli_server_poller_add(&server->poller, POLLIN, client->sock);
2644 			return SUCCESS;
2645 		EMPTY_SWITCH_DEFAULT_CASE();
2646 	}
2647 	/* Under ASAN the compiler somehow doesn't realise that the switch block always returns */
2648 	return FAILURE;
2649 } /* }}} */
2650 
php_cli_server_send_event(php_cli_server * server,php_cli_server_client * client)2651 static zend_result php_cli_server_send_event(php_cli_server *server, php_cli_server_client *client) /* {{{ */
2652 {
2653 	if (client->content_sender_initialized) {
2654 		if (client->file_fd >= 0 && !client->content_sender.buffer.first) {
2655 			size_t nbytes_read;
2656 			if (!php_cli_server_content_sender_pull(&client->content_sender, client->file_fd, &nbytes_read)) {
2657 				php_cli_server_close_connection(server, client);
2658 				return FAILURE;
2659 			}
2660 			if (nbytes_read == 0) {
2661 				close(client->file_fd);
2662 				client->file_fd = -1;
2663 			}
2664 		}
2665 
2666 		size_t nbytes_sent;
2667 		int err = php_cli_server_content_sender_send(&client->content_sender, client->sock, &nbytes_sent);
2668 		if (err && err != SOCK_EAGAIN) {
2669 			php_cli_server_close_connection(server, client);
2670 			return FAILURE;
2671 		}
2672 
2673 		if (!client->content_sender.buffer.first && client->file_fd < 0) {
2674 			php_cli_server_close_connection(server, client);
2675 		}
2676 	}
2677 	return SUCCESS;
2678 }
2679 /* }}} */
2680 
2681 typedef struct php_cli_server_do_event_for_each_fd_callback_params {
2682 	php_cli_server *server;
2683 	zend_result(*rhandler)(php_cli_server*, php_cli_server_client*);
2684 	zend_result(*whandler)(php_cli_server*, php_cli_server_client*);
2685 } php_cli_server_do_event_for_each_fd_callback_params;
2686 
php_cli_server_do_event_for_each_fd_callback(void * _params,php_socket_t fd,int event)2687 static zend_result php_cli_server_do_event_for_each_fd_callback(void *_params, php_socket_t fd, int event) /* {{{ */
2688 {
2689 	php_cli_server_do_event_for_each_fd_callback_params *params = _params;
2690 	php_cli_server *server = params->server;
2691 	if (server->server_sock == fd) {
2692 		php_cli_server_client *client = NULL;
2693 		php_socket_t client_sock;
2694 		socklen_t socklen = server->socklen;
2695 		struct sockaddr *sa = pemalloc(server->socklen, 1);
2696 		client_sock = accept(server->server_sock, sa, &socklen);
2697 		if (!ZEND_VALID_SOCKET(client_sock)) {
2698 			int err = php_socket_errno();
2699 			if (err != SOCK_EAGAIN && php_cli_server_log_level >= PHP_CLI_SERVER_LOG_ERROR) {
2700 				char *errstr = php_socket_strerror(php_socket_errno(), NULL, 0);
2701 				php_cli_server_logf(PHP_CLI_SERVER_LOG_ERROR,
2702 					"Failed to accept a client (reason: %s)", errstr);
2703 				efree(errstr);
2704 			}
2705 			pefree(sa, 1);
2706 			return FAILURE;
2707 		}
2708 		if (SUCCESS != php_set_sock_blocking(client_sock, 0)) {
2709 			pefree(sa, 1);
2710 			closesocket(client_sock);
2711 			return FAILURE;
2712 		}
2713 		client = pemalloc(sizeof(php_cli_server_client), 1);
2714 
2715 		php_cli_server_client_ctor(client, server, client_sock, sa, socklen);
2716 
2717 		php_cli_server_logf(PHP_CLI_SERVER_LOG_MESSAGE, "%s Accepted", ZSTR_VAL(client->addr_str));
2718 
2719 		zend_hash_index_update_ptr(&server->clients, client_sock, client);
2720 
2721 		php_cli_server_poller_add(&server->poller, POLLIN, client->sock);
2722 	} else {
2723 		php_cli_server_client *client;
2724 		if (NULL != (client = zend_hash_index_find_ptr(&server->clients, fd))) {
2725 			if (event & POLLIN) {
2726 				params->rhandler(server, client);
2727 			}
2728 			if (event & POLLOUT) {
2729 				params->whandler(server, client);
2730 			}
2731 		}
2732 	}
2733 	return SUCCESS;
2734 } /* }}} */
2735 
php_cli_server_do_event_for_each_fd(php_cli_server * server,zend_result (* rhandler)(php_cli_server *,php_cli_server_client *),zend_result (* whandler)(php_cli_server *,php_cli_server_client *))2736 static void php_cli_server_do_event_for_each_fd(php_cli_server *server,
2737 	zend_result(*rhandler)(php_cli_server*, php_cli_server_client*),
2738 	zend_result(*whandler)(php_cli_server*, php_cli_server_client*)) /* {{{ */
2739 {
2740 	php_cli_server_do_event_for_each_fd_callback_params params = {
2741 		server,
2742 		rhandler,
2743 		whandler
2744 	};
2745 
2746 	if (SUCCESS != php_cli_server_poller_iter_on_active(&server->poller, &params, php_cli_server_do_event_for_each_fd_callback)) {
2747 		php_cli_server_logf(PHP_CLI_SERVER_LOG_ERROR, "Failed to poll event");
2748 	}
2749 } /* }}} */
2750 
php_cli_server_do_event_loop(php_cli_server * server)2751 static zend_result php_cli_server_do_event_loop(php_cli_server *server) /* {{{ */
2752 {
2753 	zend_result retval = SUCCESS;
2754 	while (server->is_running) {
2755 		struct timeval tv = { 1, 0 };
2756 		int n = php_cli_server_poller_poll(&server->poller, &tv);
2757 		if (n > 0) {
2758 			php_cli_server_do_event_for_each_fd(server,
2759 					php_cli_server_recv_event_read_request,
2760 					php_cli_server_send_event);
2761 		} else if (n == 0) {
2762 			/* do nothing */
2763 		} else {
2764 			int err = php_socket_errno();
2765 			if (err != SOCK_EINTR) {
2766 				if (php_cli_server_log_level >= PHP_CLI_SERVER_LOG_ERROR) {
2767 					char *errstr = php_socket_strerror(err, NULL, 0);
2768 					php_cli_server_logf(PHP_CLI_SERVER_LOG_ERROR, "%s", errstr);
2769 					efree(errstr);
2770 				}
2771 				retval = FAILURE;
2772 				goto out;
2773 			}
2774 		}
2775 	}
2776 out:
2777 	return retval;
2778 } /* }}} */
2779 
2780 static php_cli_server server;
2781 
php_cli_server_sigint_handler(int sig)2782 static void php_cli_server_sigint_handler(int sig) /* {{{ */
2783 {
2784 	server.is_running = 0;
2785 }
2786 /* }}} */
2787 
2788 /* Returns status code */
do_cli_server(int argc,char ** argv)2789 int do_cli_server(int argc, char **argv) /* {{{ */
2790 {
2791 	char *php_optarg = NULL;
2792 	int php_optind = 1;
2793 	int c, r;
2794 	const char *server_bind_address = NULL;
2795 	extern const opt_struct OPTIONS[];
2796 	const char *document_root = NULL;
2797 #ifdef PHP_WIN32
2798 	char document_root_tmp[MAXPATHLEN];
2799 	size_t k;
2800 #endif
2801 	const char *router = NULL;
2802 	char document_root_buf[MAXPATHLEN];
2803 
2804 	while ((c = php_getopt(argc, argv, OPTIONS, &php_optarg, &php_optind, 0, 2))!=-1) {
2805 		switch (c) {
2806 			case 'S':
2807 				server_bind_address = php_optarg;
2808 				break;
2809 			case 't':
2810 #ifndef PHP_WIN32
2811 				document_root = php_optarg;
2812 #else
2813 				k = strlen(php_optarg);
2814 				if (k + 1 > MAXPATHLEN) {
2815 					fprintf(stderr, "Document root path is too long.\n");
2816 					return 1;
2817 				}
2818 				memmove(document_root_tmp, php_optarg, k + 1);
2819 				/* Clean out any trailing garbage that might have been passed
2820 					from a batch script. */
2821 				do {
2822 					document_root_tmp[k] = '\0';
2823 					k--;
2824 				} while ('"' == document_root_tmp[k] || ' ' == document_root_tmp[k]);
2825 				document_root = document_root_tmp;
2826 #endif
2827 				break;
2828 			case 'q':
2829 				if (php_cli_server_log_level > 1) {
2830 					php_cli_server_log_level--;
2831 				}
2832 				break;
2833 		}
2834 	}
2835 
2836 	if (document_root) {
2837 		zend_stat_t sb = {0};
2838 
2839 		if (php_sys_stat(document_root, &sb)) {
2840 			fprintf(stderr, "Directory %s does not exist.\n", document_root);
2841 			return 1;
2842 		}
2843 		if (!S_ISDIR(sb.st_mode)) {
2844 			fprintf(stderr, "%s is not a directory.\n", document_root);
2845 			return 1;
2846 		}
2847 		if (VCWD_REALPATH(document_root, document_root_buf)) {
2848 			document_root = document_root_buf;
2849 		}
2850 	} else {
2851 		char *ret = NULL;
2852 
2853 #if HAVE_GETCWD
2854 		ret = VCWD_GETCWD(document_root_buf, MAXPATHLEN);
2855 #elif HAVE_GETWD
2856 		ret = VCWD_GETWD(document_root_buf);
2857 #endif
2858 		document_root = ret ? document_root_buf: ".";
2859 	}
2860 
2861 	if (argc > php_optind) {
2862 		router = argv[php_optind];
2863 	}
2864 
2865 	if (FAILURE == php_cli_server_ctor(&server, server_bind_address, document_root, router)) {
2866 		return 1;
2867 	}
2868 	sapi_module.phpinfo_as_text = 0;
2869 
2870 	{
2871 		r = 0;
2872 		bool ipv6 = strchr(server.host, ':');
2873 		php_cli_server_logf(
2874 			PHP_CLI_SERVER_LOG_PROCESS,
2875 			"PHP %s Development Server (http://%s%s%s:%d) started",
2876 			PHP_VERSION, ipv6 ? "[" : "", server.host,
2877 			ipv6 ? "]" : "", server.port);
2878 	}
2879 
2880 #if defined(SIGINT)
2881 	signal(SIGINT, php_cli_server_sigint_handler);
2882 #endif
2883 
2884 #if defined(SIGPIPE)
2885 	signal(SIGPIPE, SIG_IGN);
2886 #endif
2887 
2888 	zend_signal_init();
2889 
2890 	if (SUCCESS != php_cli_server_do_event_loop(&server)) {
2891 		r = 1;
2892 	}
2893 	php_cli_server_dtor(&server);
2894 	return r;
2895 } /* }}} */
2896