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use builtin uidna_IDNToASCII on OSX
[m6w6/ext-http] / php_http_url.c
1 /*
2 +--------------------------------------------------------------------+
3 | PECL :: http |
4 +--------------------------------------------------------------------+
5 | Redistribution and use in source and binary forms, with or without |
6 | modification, are permitted provided that the conditions mentioned |
7 | in the accompanying LICENSE file are met. |
8 +--------------------------------------------------------------------+
9 | Copyright (c) 2004-2014, Michael Wallner <mike@php.net> |
10 +--------------------------------------------------------------------+
11 */
12
13 #include "php_http_api.h"
14
15 #ifdef PHP_HTTP_HAVE_IDN
16 # include <idna.h>
17 #endif
18
19 #ifdef PHP_HTTP_HAVE_WCHAR
20 # include <wchar.h>
21 # include <wctype.h>
22 #endif
23
24 #ifdef HAVE_ARPA_INET_H
25 # include <arpa/inet.h>
26 #endif
27
28 #include "php_http_utf8.h"
29
30 static inline char *localhostname(void)
31 {
32 char hostname[1024] = {0};
33
34 #ifdef PHP_WIN32
35 if (SUCCESS == gethostname(hostname, lenof(hostname))) {
36 return estrdup(hostname);
37 }
38 #elif defined(HAVE_GETHOSTNAME)
39 if (SUCCESS == gethostname(hostname, lenof(hostname))) {
40 # if defined(HAVE_GETDOMAINNAME)
41 size_t hlen = strlen(hostname);
42 if (hlen <= lenof(hostname) - lenof("(none)")) {
43 hostname[hlen++] = '.';
44 if (SUCCESS == getdomainname(&hostname[hlen], lenof(hostname) - hlen)) {
45 if (!strcmp(&hostname[hlen], "(none)")) {
46 hostname[hlen - 1] = '\0';
47 }
48 return estrdup(hostname);
49 }
50 }
51 # endif
52 if (strcmp(hostname, "(none)")) {
53 return estrdup(hostname);
54 }
55 }
56 #endif
57 return estrndup("localhost", lenof("localhost"));
58 }
59
60 #define url(buf) ((php_http_url_t *) (buf).data)
61
62 static php_http_url_t *php_http_url_from_env(TSRMLS_D)
63 {
64 zval *https, *zhost, *zport;
65 long port;
66 php_http_buffer_t buf;
67
68 php_http_buffer_init_ex(&buf, MAX(PHP_HTTP_BUFFER_DEFAULT_SIZE, sizeof(php_http_url_t)<<2), PHP_HTTP_BUFFER_INIT_PREALLOC);
69 php_http_buffer_account(&buf, sizeof(php_http_url_t));
70 memset(buf.data, 0, buf.used);
71
72 /* scheme */
73 url(buf)->scheme = &buf.data[buf.used];
74 https = php_http_env_get_server_var(ZEND_STRL("HTTPS"), 1 TSRMLS_CC);
75 if (https && !strcasecmp(Z_STRVAL_P(https), "ON")) {
76 php_http_buffer_append(&buf, "https", sizeof("https"));
77 } else {
78 php_http_buffer_append(&buf, "http", sizeof("http"));
79 }
80
81 /* host */
82 url(buf)->host = &buf.data[buf.used];
83 if ((((zhost = php_http_env_get_server_var(ZEND_STRL("HTTP_HOST"), 1 TSRMLS_CC)) ||
84 (zhost = php_http_env_get_server_var(ZEND_STRL("SERVER_NAME"), 1 TSRMLS_CC)) ||
85 (zhost = php_http_env_get_server_var(ZEND_STRL("SERVER_ADDR"), 1 TSRMLS_CC)))) && Z_STRLEN_P(zhost)) {
86 size_t stop_at = strspn(Z_STRVAL_P(zhost), "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ-.");
87
88 php_http_buffer_append(&buf, Z_STRVAL_P(zhost), stop_at);
89 php_http_buffer_append(&buf, "", 1);
90 } else {
91 char *host_str = localhostname();
92
93 php_http_buffer_append(&buf, host_str, strlen(host_str) + 1);
94 efree(host_str);
95 }
96
97 /* port */
98 zport = php_http_env_get_server_var(ZEND_STRL("SERVER_PORT"), 1 TSRMLS_CC);
99 if (zport && IS_LONG == is_numeric_string(Z_STRVAL_P(zport), Z_STRLEN_P(zport), &port, NULL, 0)) {
100 url(buf)->port = port;
101 }
102
103 /* path */
104 if (SG(request_info).request_uri && SG(request_info).request_uri[0]) {
105 const char *q = strchr(SG(request_info).request_uri, '?');
106
107 url(buf)->path = &buf.data[buf.used];
108
109 if (q) {
110 php_http_buffer_append(&buf, SG(request_info).request_uri, q - SG(request_info).request_uri);
111 php_http_buffer_append(&buf, "", 1);
112 } else {
113 php_http_buffer_append(&buf, SG(request_info).request_uri, strlen(SG(request_info).request_uri) + 1);
114 }
115 }
116
117 /* query */
118 if (SG(request_info).query_string && SG(request_info).query_string[0]) {
119 url(buf)->query = &buf.data[buf.used];
120 php_http_buffer_append(&buf, SG(request_info).query_string, strlen(SG(request_info).query_string) + 1);
121 }
122
123 return url(buf);
124 }
125
126 #define url_isset(u,n) \
127 ((u)&&(u)->n)
128 #define url_append(buf, append) do { \
129 char *_ptr = (buf)->data; \
130 php_http_url_t *_url = (php_http_url_t *) _ptr, _mem = *_url; \
131 append; \
132 /* relocate */ \
133 if (_ptr != (buf)->data) { \
134 ptrdiff_t diff = (buf)->data - _ptr; \
135 _url = (php_http_url_t *) (buf)->data; \
136 if (_mem.scheme) _url->scheme += diff; \
137 if (_mem.user) _url->user += diff; \
138 if (_mem.pass) _url->pass += diff; \
139 if (_mem.host) _url->host += diff; \
140 if (_mem.path) _url->path += diff; \
141 if (_mem.query) _url->query += diff; \
142 if (_mem.fragment) _url->fragment += diff; \
143 } \
144 } while (0)
145 #define url_copy(n) do { \
146 if (url_isset(new_url, n)) { \
147 url(buf)->n = &buf.data[buf.used]; \
148 url_append(&buf, php_http_buffer_append(&buf, new_url->n, strlen(new_url->n) + 1)); \
149 } else if (url_isset(old_url, n)) { \
150 url(buf)->n = &buf.data[buf.used]; \
151 url_append(&buf, php_http_buffer_append(&buf, old_url->n, strlen(old_url->n) + 1)); \
152 } \
153 } while (0)
154
155 php_http_url_t *php_http_url_mod(const php_http_url_t *old_url, const php_http_url_t *new_url, unsigned flags TSRMLS_DC)
156 {
157 php_http_url_t *tmp_url = NULL;
158 php_http_buffer_t buf;
159
160 php_http_buffer_init_ex(&buf, MAX(PHP_HTTP_BUFFER_DEFAULT_SIZE, sizeof(php_http_url_t)<<2), PHP_HTTP_BUFFER_INIT_PREALLOC);
161 php_http_buffer_account(&buf, sizeof(php_http_url_t));
162 memset(buf.data, 0, buf.used);
163
164 /* set from env if requested */
165 if (flags & PHP_HTTP_URL_FROM_ENV) {
166 php_http_url_t *env_url = php_http_url_from_env(TSRMLS_C);
167
168 old_url = tmp_url = php_http_url_mod(env_url, old_url, flags ^ PHP_HTTP_URL_FROM_ENV TSRMLS_CC);
169 php_http_url_free(&env_url);
170 }
171
172 url_copy(scheme);
173
174 if (!(flags & PHP_HTTP_URL_STRIP_USER)) {
175 url_copy(user);
176 }
177
178 if (!(flags & PHP_HTTP_URL_STRIP_PASS)) {
179 url_copy(pass);
180 }
181
182 url_copy(host);
183
184 if (!(flags & PHP_HTTP_URL_STRIP_PORT)) {
185 url(buf)->port = url_isset(new_url, port) ? new_url->port : ((old_url) ? old_url->port : 0);
186 }
187
188 if (!(flags & PHP_HTTP_URL_STRIP_PATH)) {
189 if ((flags & PHP_HTTP_URL_JOIN_PATH) && url_isset(old_url, path) && url_isset(new_url, path) && *new_url->path != '/') {
190 size_t old_path_len = strlen(old_url->path), new_path_len = strlen(new_url->path);
191 char *path = ecalloc(1, old_path_len + new_path_len + 1 + 1);
192
193 strcat(path, old_url->path);
194 if (path[old_path_len - 1] != '/') {
195 php_dirname(path, old_path_len);
196 strcat(path, "/");
197 }
198 strcat(path, new_url->path);
199
200 url(buf)->path = &buf.data[buf.used];
201 if (path[0] != '/') {
202 url_append(&buf, php_http_buffer_append(&buf, "/", 1));
203 }
204 url_append(&buf, php_http_buffer_append(&buf, path, strlen(path) + 1));
205 efree(path);
206 } else {
207 const char *path = NULL;
208
209 if (url_isset(new_url, path)) {
210 path = new_url->path;
211 } else if (url_isset(old_url, path)) {
212 path = old_url->path;
213 }
214
215 if (path) {
216 url(buf)->path = &buf.data[buf.used];
217
218 url_append(&buf, php_http_buffer_append(&buf, path, strlen(path) + 1));
219 }
220
221
222 }
223 }
224
225 if (!(flags & PHP_HTTP_URL_STRIP_QUERY)) {
226 if ((flags & PHP_HTTP_URL_JOIN_QUERY) && url_isset(new_url, query) && url_isset(old_url, query)) {
227 zval qarr, qstr;
228
229 INIT_PZVAL(&qstr);
230 INIT_PZVAL(&qarr);
231 array_init(&qarr);
232
233 ZVAL_STRING(&qstr, old_url->query, 0);
234 php_http_querystring_update(&qarr, &qstr, NULL TSRMLS_CC);
235 ZVAL_STRING(&qstr, new_url->query, 0);
236 php_http_querystring_update(&qarr, &qstr, NULL TSRMLS_CC);
237
238 ZVAL_NULL(&qstr);
239 php_http_querystring_update(&qarr, NULL, &qstr TSRMLS_CC);
240
241 url(buf)->query = &buf.data[buf.used];
242 url_append(&buf, php_http_buffer_append(&buf, Z_STRVAL(qstr), Z_STRLEN(qstr) + 1));
243
244 zval_dtor(&qstr);
245 zval_dtor(&qarr);
246 } else {
247 url_copy(query);
248 }
249 }
250
251 if (!(flags & PHP_HTTP_URL_STRIP_FRAGMENT)) {
252 url_copy(fragment);
253 }
254
255 /* done with copy & combine & strip */
256
257 if (flags & PHP_HTTP_URL_FROM_ENV) {
258 /* free old_url we tainted above */
259 php_http_url_free(&tmp_url);
260 }
261
262 /* replace directory references if path is not a single slash */
263 if ((flags & PHP_HTTP_URL_SANITIZE_PATH)
264 && url(buf)->path[0] && url(buf)->path[1]) {
265 char *ptr, *end = url(buf)->path + strlen(url(buf)->path) + 1;
266
267 for (ptr = strchr(url(buf)->path, '/'); ptr; ptr = strchr(ptr, '/')) {
268 switch (ptr[1]) {
269 case '/':
270 memmove(&ptr[1], &ptr[2], end - &ptr[2]);
271 break;
272
273 case '.':
274 switch (ptr[2]) {
275 case '\0':
276 ptr[1] = '\0';
277 break;
278
279 case '/':
280 memmove(&ptr[1], &ptr[3], end - &ptr[3]);
281 break;
282
283 case '.':
284 if (ptr[3] == '/') {
285 char *pos = &ptr[4];
286 while (ptr != url(buf)->path) {
287 if (*--ptr == '/') {
288 break;
289 }
290 }
291 memmove(&ptr[1], pos, end - pos);
292 break;
293 } else if (!ptr[3]) {
294 /* .. at the end */
295 ptr[1] = '\0';
296 }
297 /* no break */
298
299 default:
300 /* something else */
301 ++ptr;
302 break;
303 }
304 break;
305
306 default:
307 ++ptr;
308 break;
309 }
310 }
311 }
312 /* unset default ports */
313 if (url(buf)->port) {
314 if ( ((url(buf)->port == 80) && url(buf)->scheme && !strcmp(url(buf)->scheme, "http"))
315 || ((url(buf)->port ==443) && url(buf)->scheme && !strcmp(url(buf)->scheme, "https"))
316 ) {
317 url(buf)->port = 0;
318 }
319 }
320
321 return url(buf);
322 }
323
324 char *php_http_url_to_string(const php_http_url_t *url, char **url_str, size_t *url_len, zend_bool persistent)
325 {
326 php_http_buffer_t buf;
327
328 php_http_buffer_init_ex(&buf, PHP_HTTP_BUFFER_DEFAULT_SIZE, persistent ?
329 PHP_HTTP_BUFFER_INIT_PERSISTENT : 0);
330
331 if (url->scheme && *url->scheme) {
332 php_http_buffer_appendl(&buf, url->scheme);
333 php_http_buffer_appends(&buf, "://");
334 } else if ((url->user && *url->user) || (url->host && *url->host)) {
335 php_http_buffer_appends(&buf, "//");
336 }
337
338 if (url->user && *url->user) {
339 php_http_buffer_appendl(&buf, url->user);
340 if (url->pass && *url->pass) {
341 php_http_buffer_appends(&buf, ":");
342 php_http_buffer_appendl(&buf, url->pass);
343 }
344 php_http_buffer_appends(&buf, "@");
345 }
346
347 if (url->host && *url->host) {
348 php_http_buffer_appendl(&buf, url->host);
349 if (url->port) {
350 php_http_buffer_appendf(&buf, ":%hu", url->port);
351 }
352 }
353
354 if (url->path && *url->path) {
355 if (*url->path != '/') {
356 php_http_buffer_appends(&buf, "/");
357 }
358 php_http_buffer_appendl(&buf, url->path);
359 } else if (buf.used) {
360 php_http_buffer_appends(&buf, "/");
361 }
362
363 if (url->query && *url->query) {
364 php_http_buffer_appends(&buf, "?");
365 php_http_buffer_appendl(&buf, url->query);
366 }
367
368 if (url->fragment && *url->fragment) {
369 php_http_buffer_appends(&buf, "#");
370 php_http_buffer_appendl(&buf, url->fragment);
371 }
372
373 php_http_buffer_shrink(&buf);
374 php_http_buffer_fix(&buf);
375
376 if (url_len) {
377 *url_len = buf.used;
378 }
379
380 if (url_str) {
381 *url_str = buf.data;
382 }
383
384 return buf.data;
385 }
386
387 char *php_http_url_authority_to_string(const php_http_url_t *url, char **url_str, size_t *url_len)
388 {
389 php_http_buffer_t buf;
390
391 php_http_buffer_init(&buf);
392
393 if (url->user && *url->user) {
394 php_http_buffer_appendl(&buf, url->user);
395 if (url->pass && *url->pass) {
396 php_http_buffer_appends(&buf, ":");
397 php_http_buffer_appendl(&buf, url->pass);
398 }
399 php_http_buffer_appends(&buf, "@");
400 }
401
402 if (url->host && *url->host) {
403 php_http_buffer_appendl(&buf, url->host);
404 if (url->port) {
405 php_http_buffer_appendf(&buf, ":%hu", url->port);
406 }
407 }
408
409 php_http_buffer_shrink(&buf);
410 php_http_buffer_fix(&buf);
411
412 if (url_len) {
413 *url_len = buf.used;
414 }
415
416 if (url_str) {
417 *url_str = buf.data;
418 }
419
420 return buf.data;
421 }
422
423 php_http_url_t *php_http_url_from_zval(zval *value, unsigned flags TSRMLS_DC)
424 {
425 zval *zcpy;
426 php_http_url_t *purl;
427
428 switch (Z_TYPE_P(value)) {
429 case IS_ARRAY:
430 case IS_OBJECT:
431 purl = php_http_url_from_struct(HASH_OF(value));
432 break;
433
434 default:
435 zcpy = php_http_ztyp(IS_STRING, value);
436 purl = php_http_url_parse(Z_STRVAL_P(zcpy), Z_STRLEN_P(zcpy), flags TSRMLS_CC);
437 zval_ptr_dtor(&zcpy);
438 }
439
440 return purl;
441 }
442
443 php_http_url_t *php_http_url_from_struct(HashTable *ht)
444 {
445 zval **e;
446 php_http_buffer_t buf;
447
448 php_http_buffer_init_ex(&buf, MAX(PHP_HTTP_BUFFER_DEFAULT_SIZE, sizeof(php_http_url_t)<<2), PHP_HTTP_BUFFER_INIT_PREALLOC);
449 php_http_buffer_account(&buf, sizeof(php_http_url_t));
450 memset(buf.data, 0, buf.used);
451
452 if (SUCCESS == zend_hash_find(ht, "scheme", sizeof("scheme"), (void *) &e)) {
453 zval *cpy = php_http_ztyp(IS_STRING, *e);
454 url(buf)->scheme = &buf.data[buf.used];
455 url_append(&buf, php_http_buffer_append(&buf, Z_STRVAL_P(cpy), Z_STRLEN_P(cpy) + 1));
456 zval_ptr_dtor(&cpy);
457 }
458 if (SUCCESS == zend_hash_find(ht, "user", sizeof("user"), (void *) &e)) {
459 zval *cpy = php_http_ztyp(IS_STRING, *e);
460 url(buf)->user = &buf.data[buf.used];
461 url_append(&buf, php_http_buffer_append(&buf, Z_STRVAL_P(cpy), Z_STRLEN_P(cpy) + 1));
462 zval_ptr_dtor(&cpy);
463 }
464 if (SUCCESS == zend_hash_find(ht, "pass", sizeof("pass"), (void *) &e)) {
465 zval *cpy = php_http_ztyp(IS_STRING, *e);
466 url(buf)->pass = &buf.data[buf.used];
467 url_append(&buf, php_http_buffer_append(&buf, Z_STRVAL_P(cpy), Z_STRLEN_P(cpy) + 1));
468 zval_ptr_dtor(&cpy);
469 }
470 if (SUCCESS == zend_hash_find(ht, "host", sizeof("host"), (void *) &e)) {
471 zval *cpy = php_http_ztyp(IS_STRING, *e);
472 url(buf)->host = &buf.data[buf.used];
473 url_append(&buf, php_http_buffer_append(&buf, Z_STRVAL_P(cpy), Z_STRLEN_P(cpy) + 1));
474 zval_ptr_dtor(&cpy);
475 }
476 if (SUCCESS == zend_hash_find(ht, "port", sizeof("port"), (void *) &e)) {
477 zval *cpy = php_http_ztyp(IS_LONG, *e);
478 url(buf)->port = (unsigned short) Z_LVAL_P(cpy);
479 zval_ptr_dtor(&cpy);
480 }
481 if (SUCCESS == zend_hash_find(ht, "path", sizeof("path"), (void *) &e)) {
482 zval *cpy = php_http_ztyp(IS_STRING, *e);
483 url(buf)->path = &buf.data[buf.used];
484 url_append(&buf, php_http_buffer_append(&buf, Z_STRVAL_P(cpy), Z_STRLEN_P(cpy) + 1));
485 zval_ptr_dtor(&cpy);
486 }
487 if (SUCCESS == zend_hash_find(ht, "query", sizeof("query"), (void *) &e)) {
488 zval *cpy = php_http_ztyp(IS_STRING, *e);
489 url(buf)->query = &buf.data[buf.used];
490 url_append(&buf, php_http_buffer_append(&buf, Z_STRVAL_P(cpy), Z_STRLEN_P(cpy) + 1));
491 zval_ptr_dtor(&cpy);
492 }
493 if (SUCCESS == zend_hash_find(ht, "fragment", sizeof("fragment"), (void *) &e)) {
494 zval *cpy = php_http_ztyp(IS_STRING, *e);
495 url(buf)->fragment = &buf.data[buf.used];
496 url_append(&buf, php_http_buffer_append(&buf, Z_STRVAL_P(cpy), Z_STRLEN_P(cpy) + 1));
497 zval_ptr_dtor(&cpy);
498 }
499
500 return url(buf);
501 }
502
503 HashTable *php_http_url_to_struct(const php_http_url_t *url, zval *strct TSRMLS_DC)
504 {
505 zval arr;
506
507 if (strct) {
508 switch (Z_TYPE_P(strct)) {
509 default:
510 zval_dtor(strct);
511 array_init(strct);
512 /* no break */
513 case IS_ARRAY:
514 case IS_OBJECT:
515 INIT_PZVAL_ARRAY((&arr), HASH_OF(strct));
516 break;
517 }
518 } else {
519 INIT_PZVAL(&arr);
520 array_init(&arr);
521 }
522
523 if (url) {
524 if (url->scheme) {
525 add_assoc_string(&arr, "scheme", url->scheme, 1);
526 }
527 if (url->user) {
528 add_assoc_string(&arr, "user", url->user, 1);
529 }
530 if (url->pass) {
531 add_assoc_string(&arr, "pass", url->pass, 1);
532 }
533 if (url->host) {
534 add_assoc_string(&arr, "host", url->host, 1);
535 }
536 if (url->port) {
537 add_assoc_long(&arr, "port", (long) url->port);
538 }
539 if (url->path) {
540 add_assoc_string(&arr, "path", url->path, 1);
541 }
542 if (url->query) {
543 add_assoc_string(&arr, "query", url->query, 1);
544 }
545 if (url->fragment) {
546 add_assoc_string(&arr, "fragment", url->fragment, 1);
547 }
548 }
549
550 return Z_ARRVAL(arr);
551 }
552
553 STATUS php_http_url_encode_hash(HashTable *hash, const char *pre_encoded_str, size_t pre_encoded_len, char **encoded_str, size_t *encoded_len TSRMLS_DC)
554 {
555 const char *arg_sep_str;
556 size_t arg_sep_len;
557 php_http_buffer_t *qstr = php_http_buffer_new();
558
559 php_http_url_argsep(&arg_sep_str, &arg_sep_len TSRMLS_CC);
560
561 if (SUCCESS != php_http_url_encode_hash_ex(hash, qstr, arg_sep_str, arg_sep_len, "=", 1, pre_encoded_str, pre_encoded_len TSRMLS_CC)) {
562 php_http_buffer_free(&qstr);
563 return FAILURE;
564 }
565
566 php_http_buffer_data(qstr, encoded_str, encoded_len);
567 php_http_buffer_free(&qstr);
568
569 return SUCCESS;
570 }
571
572 STATUS php_http_url_encode_hash_ex(HashTable *hash, php_http_buffer_t *qstr, const char *arg_sep_str, size_t arg_sep_len, const char *val_sep_str, size_t val_sep_len, const char *pre_encoded_str, size_t pre_encoded_len TSRMLS_DC)
573 {
574 if (pre_encoded_len && pre_encoded_str) {
575 php_http_buffer_append(qstr, pre_encoded_str, pre_encoded_len);
576 }
577
578 if (!php_http_params_to_string(qstr, hash, arg_sep_str, arg_sep_len, "", 0, val_sep_str, val_sep_len, PHP_HTTP_PARAMS_QUERY TSRMLS_CC)) {
579 return FAILURE;
580 }
581
582 return SUCCESS;
583 }
584
585 struct parse_state {
586 php_http_url_t url;
587 #ifdef ZTS
588 void ***ts;
589 #endif
590 const char *ptr;
591 const char *end;
592 size_t maxlen;
593 off_t offset;
594 unsigned flags;
595 char buffer[1]; /* last member */
596 };
597
598 void php_http_url_free(php_http_url_t **url)
599 {
600 if (*url) {
601 efree(*url);
602 *url = NULL;
603 }
604 }
605
606 php_http_url_t *php_http_url_copy(const php_http_url_t *url, zend_bool persistent)
607 {
608 php_http_url_t *cpy;
609 const char *end = NULL, *url_ptr = (const char *) url;
610 char *cpy_ptr;
611
612 end = MAX(url->scheme, end);
613 end = MAX(url->pass, end);
614 end = MAX(url->user, end);
615 end = MAX(url->host, end);
616 end = MAX(url->path, end);
617 end = MAX(url->query, end);
618 end = MAX(url->fragment, end);
619
620 if (end) {
621 end += strlen(end) + 1;
622 cpy_ptr = pecalloc(1, end - url_ptr, persistent);
623 cpy = (php_http_url_t *) cpy_ptr;
624
625 memcpy(cpy_ptr + sizeof(*cpy), url_ptr + sizeof(*url), end - url_ptr - sizeof(*url));
626
627 cpy->scheme = url->scheme ? cpy_ptr + (url->scheme - url_ptr) : NULL;
628 cpy->pass = url->pass ? cpy_ptr + (url->pass - url_ptr) : NULL;
629 cpy->user = url->user ? cpy_ptr + (url->user - url_ptr) : NULL;
630 cpy->host = url->host ? cpy_ptr + (url->host - url_ptr) : NULL;
631 cpy->path = url->path ? cpy_ptr + (url->path - url_ptr) : NULL;
632 cpy->query = url->query ? cpy_ptr + (url->query - url_ptr) : NULL;
633 cpy->fragment = url->fragment ? cpy_ptr + (url->fragment - url_ptr) : NULL;
634 } else {
635 cpy = ecalloc(1, sizeof(*url));
636 }
637
638 cpy->port = url->port;
639
640 return cpy;
641 }
642
643 static size_t parse_mb_utf8(unsigned *wc, const char *ptr, const char *end)
644 {
645 unsigned wchar;
646 size_t consumed = utf8towc(&wchar, (const unsigned char *) ptr, end - ptr);
647
648 if (!consumed || consumed == (size_t) -1) {
649 return 0;
650 }
651
652 if (wc) {
653 *wc = wchar;
654 }
655 return consumed;
656 }
657
658 #ifdef PHP_HTTP_HAVE_WCHAR
659 static size_t parse_mb_loc(unsigned *wc, const char *ptr, const char *end)
660 {
661 wchar_t wchar;
662 size_t consumed = 0;
663 #if defined(HAVE_MBRTOWC)
664 mbstate_t ps;
665
666 memset(&ps, 0, sizeof(ps));
667 consumed = mbrtowc(&wchar, ptr, end - ptr, &ps);
668 #elif defined(HAVE_MBTOWC)
669 consumed = mbtowc(&wchar, ptr, end - ptr);
670 #endif
671
672 if (!consumed || consumed == (size_t) -1) {
673 return 0;
674 }
675
676 if (wc) {
677 *wc = wchar;
678 }
679 return consumed;
680 }
681 #endif
682
683 typedef enum parse_mb_what {
684 PARSE_SCHEME,
685 PARSE_USERINFO,
686 PARSE_HOSTINFO,
687 PARSE_PATH,
688 PARSE_QUERY,
689 PARSE_FRAGMENT
690 } parse_mb_what_t;
691
692 static const char * const parse_what[] = {
693 "scheme",
694 "userinfo",
695 "hostinfo",
696 "path",
697 "query",
698 "fragment"
699 };
700
701 static const char parse_xdigits[] = "0123456789ABCDEF";
702
703 static size_t parse_mb(struct parse_state *state, parse_mb_what_t what, const char *ptr, const char *end, const char *begin, zend_bool silent)
704 {
705 unsigned wchar;
706 size_t consumed = 0;
707
708 if (state->flags & PHP_HTTP_URL_PARSE_MBUTF8) {
709 consumed = parse_mb_utf8(&wchar, ptr, end);
710 }
711 #ifdef PHP_HTTP_HAVE_WCHAR
712 else if (state->flags & PHP_HTTP_URL_PARSE_MBLOC) {
713 consumed = parse_mb_loc(&wchar, ptr, end);
714 }
715 #endif
716
717 while (consumed) {
718 if (!(state->flags & PHP_HTTP_URL_PARSE_TOPCT) || what == PARSE_HOSTINFO || what == PARSE_SCHEME) {
719 if (what == PARSE_HOSTINFO && (state->flags & PHP_HTTP_URL_PARSE_TOIDN)) {
720 /* idna */
721 } else if (state->flags & PHP_HTTP_URL_PARSE_MBUTF8) {
722 if (!isualnum(wchar)) {
723 break;
724 }
725 #ifdef PHP_HTTP_HAVE_WCHAR
726 } else if (state->flags & PHP_HTTP_URL_PARSE_MBLOC) {
727 if (!iswalnum(wchar)) {
728 break;
729 }
730 #endif
731 }
732 PHP_HTTP_DUFF(consumed, state->buffer[state->offset++] = *ptr++);
733 } else {
734 int i = 0;
735
736 PHP_HTTP_DUFF(consumed,
737 state->buffer[state->offset++] = '%';
738 state->buffer[state->offset++] = parse_xdigits[((unsigned char) ptr[i]) >> 4];
739 state->buffer[state->offset++] = parse_xdigits[((unsigned char) ptr[i]) & 0xf];
740 ++i;
741 );
742 }
743
744 return consumed;
745 }
746
747 if (!silent) {
748 TSRMLS_FETCH_FROM_CTX(state->ts);
749 php_error_docref(NULL TSRMLS_CC, E_WARNING,
750 "Failed to parse %s; unexpected byte 0x%02x at pos %u in '%s'",
751 parse_what[what], (unsigned char) *ptr, (unsigned) (ptr - begin), begin);
752 }
753
754 return 0;
755 }
756
757 static STATUS parse_userinfo(struct parse_state *state, const char *ptr)
758 {
759 size_t mb;
760 const char *password = NULL, *end = state->ptr, *tmp = ptr;
761 TSRMLS_FETCH_FROM_CTX(state->ts);
762
763 state->url.user = &state->buffer[state->offset];
764
765 do {
766 switch (*ptr) {
767 case ':':
768 if (password) {
769 php_error_docref(NULL TSRMLS_CC, E_WARNING,
770 "Failed to parse password; duplicate ':' at pos %u in '%s'",
771 (unsigned) (ptr - tmp), tmp);
772 return FAILURE;
773 }
774 password = ptr + 1;
775 state->buffer[state->offset++] = 0;
776 state->url.pass = &state->buffer[state->offset];
777 break;
778
779 case '%':
780 if (ptr[1] != '%' && (end - ptr <= 2 || !isxdigit(*(ptr+1)) || !isxdigit(*(ptr+2)))) {
781 php_error_docref(NULL TSRMLS_CC, E_WARNING,
782 "Failed to parse userinfo; invalid percent encoding at pos %u in '%s'",
783 (unsigned) (ptr - tmp), tmp);
784 return FAILURE;
785 }
786 state->buffer[state->offset++] = *ptr++;
787 state->buffer[state->offset++] = *ptr++;
788 state->buffer[state->offset++] = *ptr;
789 break;
790
791 case '!': case '$': case '&': case '\'': case '(': case ')': case '*':
792 case '+': case ',': case ';': case '=': /* sub-delims */
793 case '-': case '.': case '_': case '~': /* unreserved */
794 case 'A': case 'B': case 'C': case 'D': case 'E': case 'F': case 'G':
795 case 'H': case 'I': case 'J': case 'K': case 'L': case 'M': case 'N':
796 case 'O': case 'P': case 'Q': case 'R': case 'S': case 'T': case 'U':
797 case 'V': case 'W': case 'X': case 'Y': case 'Z':
798 case 'a': case 'b': case 'c': case 'd': case 'e': case 'f': case 'g':
799 case 'h': case 'i': case 'j': case 'k': case 'l': case 'm': case 'n':
800 case 'o': case 'p': case 'q': case 'r': case 's': case 't': case 'u':
801 case 'v': case 'w': case 'x': case 'y': case 'z':
802 case '0': case '1': case '2': case '3': case '4': case '5': case '6':
803 case '7': case '8': case '9':
804 /* allowed */
805 state->buffer[state->offset++] = *ptr;
806 break;
807
808 default:
809 if (!(mb = parse_mb(state, PARSE_USERINFO, ptr, end, tmp, 0))) {
810 return FAILURE;
811 }
812 ptr += mb - 1;
813 }
814 } while(++ptr != end);
815
816
817 state->buffer[state->offset++] = 0;
818
819 return SUCCESS;
820 }
821
822 #ifdef PHP_HTTP_HAVE_IDN
823 static STATUS parse_idn(struct parse_state *state)
824 {
825 char *idn = NULL;
826 int rv = -1;
827
828 if (state->flags & PHP_HTTP_URL_PARSE_MBUTF8) {
829 rv = idna_to_ascii_8z(state->url.host, &idn, IDNA_ALLOW_UNASSIGNED|IDNA_USE_STD3_ASCII_RULES);
830 }
831 # ifdef PHP_HTTP_HAVE_WCHAR
832 else if (state->flags & PHP_HTTP_URL_PARSE_MBLOC) {
833 rv = idna_to_ascii_lz(state->url.host, &idn, IDNA_ALLOW_UNASSIGNED|IDNA_USE_STD3_ASCII_RULES);
834 }
835 # endif
836 if (rv != IDNA_SUCCESS) {
837 php_error_docref(NULL TSRMLS_CC, E_WARNING, "Failed to parse IDN; %s", idna_strerror(rv));
838 return FAILURE;
839 } else {
840 size_t idnlen = strlen(idn);
841 memcpy(state->url.host, idn, idnlen + 1);
842 free(idn);
843 state->offset += idnlen - len;
844 return SUCCESS;
845 }
846 }
847 #endif
848
849 #ifdef HAVE_UIDNA_IDNTOASCII
850 # if HAVE_UNICODE_UIDNA_H
851 # include <unicode/uidna.h>
852 # else
853 typedef uint16_t UChar;
854 typedef enum { U_ZERO_ERROR = 0 } UErrorCode;
855 int32_t uidna_IDNToASCII(const UChar *src, int32_t srcLength, UChar *dest, int32_t destCapacity, int32_t options, void *parseError, UErrorCode *status);
856 # endif
857 typedef size_t (*parse_mb_func)(unsigned *wc, const char *ptr, const char *end);
858 static STATUS toutf16(parse_mb_func fn, const char *u8, uint16_t **u16, size_t *len)
859 {
860 size_t offset = 0, u8_len = strlen(u8);
861
862 *u16 = ecalloc(4 * sizeof(uint16_t), u8_len + 1);
863 *len = 0;
864
865 while (offset < u8_len) {
866 unsigned wc;
867 uint16_t buf[2], *ptr = buf;
868 size_t consumed = fn(&wc, &u8[offset], &u8[u8_len]);
869
870 if (!consumed) {
871 efree(*u16);
872 return FAILURE;
873 } else {
874 offset += consumed;
875 }
876
877 switch (wctoutf16(buf, wc)) {
878 case 2:
879 (*u16)[(*len)++] = *ptr++;
880 /* no break */
881 case 1:
882 (*u16)[(*len)++] = *ptr++;
883 break;
884 case 0:
885 default:
886 efree(*u16);
887 return FAILURE;
888 }
889 }
890
891 return SUCCESS;
892 }
893 static STATUS parse_uidn(struct parse_state *state)
894 {
895 char *host_ptr;
896 uint16_t *uhost_str = NULL, *ahost_str, *ahost_ptr;
897 size_t uhost_len, ahost_len;
898 UErrorCode error = U_ZERO_ERROR;
899
900 if (state->flags & PHP_HTTP_URL_PARSE_MBUTF8) {
901 if (SUCCESS != toutf16(parse_mb_utf8, state->url.host, &uhost_str, &uhost_len)) {
902 php_error_docref(NULL TSRMLS_CC, E_WARNING, "Failed to parse IDN");
903 return FAILURE;
904 }
905 #ifdef PHP_HTTP_HAVE_WCHAR
906 } else if (state->flags & PHP_HTTP_URL_PARSE_MBLOC) {
907 if (SUCCESS != toutf16(parse_mb_loc, state->url.host, &uhost_str, &uhost_len)) {
908 php_error_docref(NULL TSRMLS_CC, E_WARNING, "Failed to parse IDN");
909 return FAILURE;
910 }
911 #endif
912 } else {
913 php_error_docref(NULL TSRMLS_CC, E_WARNING, "Failed to parse IDN");
914 return FAILURE;
915 }
916
917 ahost_len = uhost_len * 3;
918 ahost_str = ecalloc(sizeof(uint16_t), ahost_len);
919
920 ahost_len = uidna_IDNToASCII(uhost_str, uhost_len, ahost_str, ahost_len, 3, NULL, &error);
921 efree(uhost_str);
922
923 if (error != U_ZERO_ERROR) {
924 php_error_docref(NULL TSRMLS_CC, E_WARNING, "Failed to parse IDN");
925 return FAILURE;
926 }
927
928 host_ptr = state->url.host;
929 ahost_ptr = ahost_str;
930 PHP_HTTP_DUFF(ahost_len, *host_ptr++ = *ahost_ptr++);
931 efree(ahost_str);
932
933 *host_ptr = '\0';
934 state->offset += host_ptr - state->url.host;
935
936 return SUCCESS;
937 }
938 #endif
939
940 static STATUS parse_hostinfo(struct parse_state *state, const char *ptr)
941 {
942 size_t mb, len;
943 const char *end = state->ptr, *tmp = ptr, *port = NULL;
944 TSRMLS_FETCH_FROM_CTX(state->ts);
945
946
947 #ifdef HAVE_INET_PTON
948 if (*ptr == '[') {
949 char *error = NULL, *tmp = memchr(ptr, ']', end - ptr);
950
951 if (tmp) {
952 size_t addrlen = tmp - ptr + 1;
953 char buf[16], *addr = estrndup(ptr + 1, addrlen - 2);
954 int rv = inet_pton(AF_INET6, addr, buf);
955
956 efree(addr);
957 if (rv == 1) {
958 state->buffer[state->offset] = '[';
959 state->url.host = &state->buffer[state->offset];
960 inet_ntop(AF_INET6, buf, state->url.host + 1, state->maxlen - state->offset);
961 state->offset += strlen(state->url.host);
962 state->buffer[state->offset++] = ']';
963 state->buffer[state->offset++] = 0;
964 ptr = tmp + 1;
965 } else if (rv == -1) {
966 error = strerror(errno);
967 } else {
968 error = "unexpected '['";
969 }
970 } else {
971 error = "expected ']'";
972 }
973
974 if (error) {
975 php_error_docref(NULL TSRMLS_CC, E_WARNING, "Failed to parse hostinfo; %s", error);
976 return FAILURE;
977 }
978 }
979 #endif
980 if (ptr != end) do {
981 switch (*ptr) {
982 case ':':
983 if (port) {
984 php_error_docref(NULL TSRMLS_CC, E_WARNING,
985 "Failed to parse port; unexpected ':' at pos %u in '%s'",
986 (unsigned) (ptr - tmp), tmp);
987 return FAILURE;
988 }
989 port = ptr + 1;
990 break;
991
992 case '%':
993 if (ptr[1] != '%' && (end - ptr <= 2 || !isxdigit(*(ptr+1)) || !isxdigit(*(ptr+2)))) {
994 php_error_docref(NULL TSRMLS_CC, E_WARNING,
995 "Failed to parse hostinfo; invalid percent encoding at pos %u in '%s'",
996 (unsigned) (ptr - tmp), tmp);
997 return FAILURE;
998 }
999 state->buffer[state->offset++] = *ptr++;
1000 state->buffer[state->offset++] = *ptr++;
1001 state->buffer[state->offset++] = *ptr;
1002 break;
1003
1004 case '!': case '$': case '&': case '\'': case '(': case ')': case '*':
1005 case '+': case ',': case ';': case '=': /* sub-delims */
1006 case '-': case '.': case '_': case '~': /* unreserved */
1007 case 'A': case 'B': case 'C': case 'D': case 'E': case 'F': case 'G':
1008 case 'H': case 'I': case 'J': case 'K': case 'L': case 'M': case 'N':
1009 case 'O': case 'P': case 'Q': case 'R': case 'S': case 'T': case 'U':
1010 case 'V': case 'W': case 'X': case 'Y': case 'Z':
1011 case 'a': case 'b': case 'c': case 'd': case 'e': case 'f': case 'g':
1012 case 'h': case 'i': case 'j': case 'k': case 'l': case 'm': case 'n':
1013 case 'o': case 'p': case 'q': case 'r': case 's': case 't': case 'u':
1014 case 'v': case 'w': case 'x': case 'y': case 'z':
1015 if (port) {
1016 php_error_docref(NULL TSRMLS_CC, E_WARNING,
1017 "Failed to parse port; unexpected char '%c' at pos %u in '%s'",
1018 (unsigned char) *ptr, (unsigned) (ptr - tmp), tmp);
1019 return FAILURE;
1020 }
1021 /* no break */
1022 case '0': case '1': case '2': case '3': case '4': case '5': case '6':
1023 case '7': case '8': case '9':
1024 /* allowed */
1025 if (port) {
1026 state->url.port *= 10;
1027 state->url.port += *ptr - '0';
1028 } else {
1029 state->buffer[state->offset++] = *ptr;
1030 }
1031 break;
1032
1033 default:
1034 if (ptr == end) {
1035 break;
1036 } else if (port) {
1037 php_error_docref(NULL TSRMLS_CC, E_WARNING,
1038 "Failed to parse port; unexpected byte 0x%02x at pos %u in '%s'",
1039 (unsigned char) *ptr, (unsigned) (ptr - tmp), tmp);
1040 return FAILURE;
1041 } else if (!(mb = parse_mb(state, PARSE_HOSTINFO, ptr, end, tmp, 0))) {
1042 return FAILURE;
1043 }
1044 ptr += mb - 1;
1045 }
1046 } while (++ptr != end);
1047
1048 if (!state->url.host) {
1049 len = (port ? port - tmp - 1 : end - tmp);
1050 state->url.host = &state->buffer[state->offset - len];
1051 state->buffer[state->offset++] = 0;
1052 }
1053
1054 if (state->flags & PHP_HTTP_URL_PARSE_TOIDN) {
1055 #ifdef PHP_HTTP_HAVE_IDN
1056 return parse_idn(state);
1057 #endif
1058 #ifdef HAVE_UIDNA_IDNTOASCII
1059 return parse_uidn(state);
1060 #endif
1061 }
1062
1063 return SUCCESS;
1064 }
1065
1066 static const char *parse_authority(struct parse_state *state)
1067 {
1068 const char *tmp = state->ptr, *host = NULL;
1069
1070 do {
1071 switch (*state->ptr) {
1072 case '@':
1073 /* userinfo delimiter */
1074 if (host) {
1075 TSRMLS_FETCH_FROM_CTX(state->ts);
1076 php_error_docref(NULL TSRMLS_CC, E_WARNING,
1077 "Failed to parse userinfo; unexpected '@'");
1078 return NULL;
1079 }
1080 host = state->ptr + 1;
1081 if (tmp != state->ptr && SUCCESS != parse_userinfo(state, tmp)) {
1082 return NULL;
1083 }
1084 tmp = state->ptr + 1;
1085 break;
1086
1087 case '/':
1088 case '?':
1089 case '#':
1090 case '\0':
1091 EOD:
1092 /* host delimiter */
1093 if (tmp != state->ptr && SUCCESS != parse_hostinfo(state, tmp)) {
1094 return NULL;
1095 }
1096 return state->ptr;
1097 }
1098 } while (++state->ptr <= state->end);
1099
1100 --state->ptr;
1101 goto EOD;
1102 }
1103
1104 static const char *parse_path(struct parse_state *state)
1105 {
1106 size_t mb;
1107 const char *tmp;
1108 TSRMLS_FETCH_FROM_CTX(state->ts);
1109
1110 /* is there actually a path to parse? */
1111 if (!*state->ptr) {
1112 return state->ptr;
1113 }
1114 tmp = state->ptr;
1115 state->url.path = &state->buffer[state->offset];
1116
1117 do {
1118 switch (*state->ptr) {
1119 case '#':
1120 case '?':
1121 goto done;
1122
1123 case '%':
1124 if (state->ptr[1] != '%' && (state->end - state->ptr <= 2 || !isxdigit(*(state->ptr+1)) || !isxdigit(*(state->ptr+2)))) {
1125 php_error_docref(NULL TSRMLS_CC, E_WARNING,
1126 "Failed to parse path; invalid percent encoding at pos %u in '%s'",
1127 (unsigned) (state->ptr - tmp), tmp);
1128 return NULL;
1129 }
1130 state->buffer[state->offset++] = *state->ptr++;
1131 state->buffer[state->offset++] = *state->ptr++;
1132 state->buffer[state->offset++] = *state->ptr;
1133 break;
1134
1135 case '/': /* yeah, well */
1136 case '!': case '$': case '&': case '\'': case '(': case ')': case '*':
1137 case '+': case ',': case ';': case '=': /* sub-delims */
1138 case '-': case '.': case '_': case '~': /* unreserved */
1139 case ':': case '@': /* pchar */
1140 case 'A': case 'B': case 'C': case 'D': case 'E': case 'F': case 'G':
1141 case 'H': case 'I': case 'J': case 'K': case 'L': case 'M': case 'N':
1142 case 'O': case 'P': case 'Q': case 'R': case 'S': case 'T': case 'U':
1143 case 'V': case 'W': case 'X': case 'Y': case 'Z':
1144 case 'a': case 'b': case 'c': case 'd': case 'e': case 'f': case 'g':
1145 case 'h': case 'i': case 'j': case 'k': case 'l': case 'm': case 'n':
1146 case 'o': case 'p': case 'q': case 'r': case 's': case 't': case 'u':
1147 case 'v': case 'w': case 'x': case 'y': case 'z':
1148 case '0': case '1': case '2': case '3': case '4': case '5': case '6':
1149 case '7': case '8': case '9':
1150 /* allowed */
1151 state->buffer[state->offset++] = *state->ptr;
1152 break;
1153
1154 default:
1155 if (!(mb = parse_mb(state, PARSE_PATH, state->ptr, state->end, tmp, 0))) {
1156 return NULL;
1157 }
1158 state->ptr += mb - 1;
1159 }
1160 } while (++state->ptr < state->end);
1161
1162 done:
1163 /* did we have any path component ? */
1164 if (tmp != state->ptr) {
1165 state->buffer[state->offset++] = 0;
1166 } else {
1167 state->url.path = NULL;
1168 }
1169 return state->ptr;
1170 }
1171
1172 static const char *parse_query(struct parse_state *state)
1173 {
1174 size_t mb;
1175 const char *tmp = state->ptr + !!*state->ptr;
1176 TSRMLS_FETCH_FROM_CTX(state->ts);
1177
1178 /* is there actually a query to parse? */
1179 if (*state->ptr != '?') {
1180 return state->ptr;
1181 }
1182
1183 /* skip initial '?' */
1184 tmp = ++state->ptr;
1185 state->url.query = &state->buffer[state->offset];
1186
1187 do {
1188 switch (*state->ptr) {
1189 case '#':
1190 goto done;
1191
1192 case '%':
1193 if (state->ptr[1] != '%' && (state->end - state->ptr <= 2 || !isxdigit(*(state->ptr+1)) || !isxdigit(*(state->ptr+2)))) {
1194 php_error_docref(NULL TSRMLS_CC, E_WARNING,
1195 "Failed to parse query; invalid percent encoding at pos %u in '%s'",
1196 (unsigned) (state->ptr - tmp), tmp);
1197 return NULL;
1198 }
1199 state->buffer[state->offset++] = *state->ptr++;
1200 state->buffer[state->offset++] = *state->ptr++;
1201 state->buffer[state->offset++] = *state->ptr;
1202 break;
1203
1204 case ']':
1205 case '[':
1206 if (state->flags & PHP_HTTP_URL_PARSE_TOPCT) {
1207 state->buffer[state->offset++] = '%';
1208 state->buffer[state->offset++] = parse_xdigits[((unsigned char) *state->ptr) >> 4];
1209 state->buffer[state->offset++] = parse_xdigits[((unsigned char) *state->ptr) & 0xf];
1210 break;
1211 }
1212 /* no break */
1213
1214 case '?': case '/': /* yeah, well */
1215 case '!': case '$': case '&': case '\'': case '(': case ')': case '*':
1216 case '+': case ',': case ';': case '=': /* sub-delims */
1217 case '-': case '.': case '_': case '~': /* unreserved */
1218 case ':': case '@': /* pchar */
1219 case 'A': case 'B': case 'C': case 'D': case 'E': case 'F': case 'G':
1220 case 'H': case 'I': case 'J': case 'K': case 'L': case 'M': case 'N':
1221 case 'O': case 'P': case 'Q': case 'R': case 'S': case 'T': case 'U':
1222 case 'V': case 'W': case 'X': case 'Y': case 'Z':
1223 case 'a': case 'b': case 'c': case 'd': case 'e': case 'f': case 'g':
1224 case 'h': case 'i': case 'j': case 'k': case 'l': case 'm': case 'n':
1225 case 'o': case 'p': case 'q': case 'r': case 's': case 't': case 'u':
1226 case 'v': case 'w': case 'x': case 'y': case 'z':
1227 case '0': case '1': case '2': case '3': case '4': case '5': case '6':
1228 case '7': case '8': case '9':
1229 /* allowed */
1230 state->buffer[state->offset++] = *state->ptr;
1231 break;
1232
1233 default:
1234 if (!(mb = parse_mb(state, PARSE_QUERY, state->ptr, state->end, tmp, 0))) {
1235 return NULL;
1236 }
1237 state->ptr += mb - 1;
1238 }
1239 } while (++state->ptr < state->end);
1240
1241 done:
1242 state->buffer[state->offset++] = 0;
1243 return state->ptr;
1244 }
1245
1246 static const char *parse_fragment(struct parse_state *state)
1247 {
1248 size_t mb;
1249 const char *tmp;
1250 TSRMLS_FETCH_FROM_CTX(state->ts);
1251
1252 /* is there actually a fragment to parse? */
1253 if (*state->ptr != '#') {
1254 return state->ptr;
1255 }
1256
1257 /* skip initial '#' */
1258 tmp = ++state->ptr;
1259 state->url.fragment = &state->buffer[state->offset];
1260
1261 do {
1262 switch (*state->ptr) {
1263 case '%':
1264 if (state->ptr[1] != '%' && (state->end - state->ptr <= 2 || !isxdigit(*(state->ptr+1)) || !isxdigit(*(state->ptr+2)))) {
1265 php_error_docref(NULL TSRMLS_CC, E_WARNING,
1266 "Failed to parse fragment; invalid percent encoding at pos %u in '%s'",
1267 (unsigned) (state->ptr - tmp), tmp);
1268 return NULL;
1269 }
1270 state->buffer[state->offset++] = *state->ptr++;
1271 state->buffer[state->offset++] = *state->ptr++;
1272 state->buffer[state->offset++] = *state->ptr;
1273 break;
1274
1275 case '?': case '/':
1276 case '!': case '$': case '&': case '\'': case '(': case ')': case '*':
1277 case '+': case ',': case ';': case '=': /* sub-delims */
1278 case '-': case '.': case '_': case '~': /* unreserved */
1279 case ':': case '@': /* pchar */
1280 case 'A': case 'B': case 'C': case 'D': case 'E': case 'F': case 'G':
1281 case 'H': case 'I': case 'J': case 'K': case 'L': case 'M': case 'N':
1282 case 'O': case 'P': case 'Q': case 'R': case 'S': case 'T': case 'U':
1283 case 'V': case 'W': case 'X': case 'Y': case 'Z':
1284 case 'a': case 'b': case 'c': case 'd': case 'e': case 'f': case 'g':
1285 case 'h': case 'i': case 'j': case 'k': case 'l': case 'm': case 'n':
1286 case 'o': case 'p': case 'q': case 'r': case 's': case 't': case 'u':
1287 case 'v': case 'w': case 'x': case 'y': case 'z':
1288 case '0': case '1': case '2': case '3': case '4': case '5': case '6':
1289 case '7': case '8': case '9':
1290 /* allowed */
1291 state->buffer[state->offset++] = *state->ptr;
1292 break;
1293
1294 default:
1295 if (!(mb = parse_mb(state, PARSE_FRAGMENT, state->ptr, state->end, tmp, 0))) {
1296 return NULL;
1297 }
1298 state->ptr += mb - 1;
1299 }
1300 } while (++state->ptr < state->end);
1301
1302 state->buffer[state->offset++] = 0;
1303 return state->ptr;
1304 }
1305
1306 static const char *parse_hier(struct parse_state *state)
1307 {
1308 if (*state->ptr == '/') {
1309 if (state->end - state->ptr > 1) {
1310 if (*(state->ptr + 1) == '/') {
1311 state->ptr += 2;
1312 if (!(state->ptr = parse_authority(state))) {
1313 return NULL;
1314 }
1315 }
1316 }
1317 }
1318 return parse_path(state);
1319 }
1320
1321 static const char *parse_scheme(struct parse_state *state)
1322 {
1323 size_t mb;
1324 const char *tmp = state->ptr;
1325
1326 do {
1327 switch (*state->ptr) {
1328 case ':':
1329 /* scheme delimiter */
1330 state->url.scheme = &state->buffer[0];
1331 state->buffer[state->offset++] = 0;
1332 return ++state->ptr;
1333
1334 case '0': case '1': case '2': case '3': case '4': case '5': case '6':
1335 case '7': case '8': case '9':
1336 case '+': case '-': case '.':
1337 if (state->ptr == tmp) {
1338 return tmp;
1339 }
1340 /* no break */
1341 case 'A': case 'B': case 'C': case 'D': case 'E': case 'F': case 'G':
1342 case 'H': case 'I': case 'J': case 'K': case 'L': case 'M': case 'N':
1343 case 'O': case 'P': case 'Q': case 'R': case 'S': case 'T': case 'U':
1344 case 'V': case 'W': case 'X': case 'Y': case 'Z':
1345 case 'a': case 'b': case 'c': case 'd': case 'e': case 'f': case 'g':
1346 case 'h': case 'i': case 'j': case 'k': case 'l': case 'm': case 'n':
1347 case 'o': case 'p': case 'q': case 'r': case 's': case 't': case 'u':
1348 case 'v': case 'w': case 'x': case 'y': case 'z':
1349 /* scheme part */
1350 state->buffer[state->offset++] = *state->ptr;
1351 break;
1352
1353 default:
1354 if (!(mb = parse_mb(state, PARSE_SCHEME, state->ptr, state->end, tmp, 1))) {
1355 /* soft fail; parse path next */
1356 return tmp;
1357 }
1358 state->ptr += mb - 1;
1359 }
1360 } while (++state->ptr != state->end);
1361
1362 return state->ptr = tmp;
1363 }
1364
1365 php_http_url_t *php_http_url_parse(const char *str, size_t len, unsigned flags TSRMLS_DC)
1366 {
1367 size_t maxlen = 3 * len;
1368 struct parse_state *state = ecalloc(1, sizeof(*state) + maxlen);
1369
1370 state->end = str + len;
1371 state->ptr = str;
1372 state->flags = flags;
1373 state->maxlen = maxlen;
1374 TSRMLS_SET_CTX(state->ts);
1375
1376 if (!parse_scheme(state)) {
1377 php_error_docref(NULL TSRMLS_CC, E_WARNING, "Failed to parse URL scheme: '%s'", state->ptr);
1378 efree(state);
1379 return NULL;
1380 }
1381
1382 if (!parse_hier(state)) {
1383 efree(state);
1384 return NULL;
1385 }
1386
1387 if (!parse_query(state)) {
1388 php_error_docref(NULL TSRMLS_CC, E_WARNING, "Failed to parse URL query: '%s'", state->ptr);
1389 efree(state);
1390 return NULL;
1391 }
1392
1393 if (!parse_fragment(state)) {
1394 php_error_docref(NULL TSRMLS_CC, E_WARNING, "Failed to parse URL fragment: '%s'", state->ptr);
1395 efree(state);
1396 return NULL;
1397 }
1398
1399 return (php_http_url_t *) state;
1400 }
1401
1402 php_http_url_t *php_http_url_parse_authority(const char *str, size_t len, unsigned flags TSRMLS_DC)
1403 {
1404 size_t maxlen = 3 * len;
1405 struct parse_state *state = ecalloc(1, sizeof(*state) + maxlen);
1406
1407 state->end = str + len;
1408 state->ptr = str;
1409 state->flags = flags;
1410 state->maxlen = maxlen;
1411 TSRMLS_SET_CTX(state->ts);
1412
1413 if (!(state->ptr = parse_authority(state))) {
1414 efree(state);
1415 return NULL;
1416 }
1417
1418 if (state->ptr != state->end) {
1419 php_error_docref(NULL TSRMLS_CC, E_WARNING,
1420 "Failed to parse URL authority, unexpected character at pos %u in '%s'",
1421 (unsigned) (state->ptr - str), str);
1422 efree(state);
1423 return NULL;
1424 }
1425
1426 return (php_http_url_t *) state;
1427 }
1428
1429 ZEND_BEGIN_ARG_INFO_EX(ai_HttpUrl___construct, 0, 0, 0)
1430 ZEND_ARG_INFO(0, old_url)
1431 ZEND_ARG_INFO(0, new_url)
1432 ZEND_ARG_INFO(0, flags)
1433 ZEND_END_ARG_INFO();
1434 PHP_METHOD(HttpUrl, __construct)
1435 {
1436 zval *new_url = NULL, *old_url = NULL;
1437 long flags = PHP_HTTP_URL_FROM_ENV;
1438 zend_error_handling zeh;
1439
1440 php_http_expect(SUCCESS == zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "|z!z!l", &old_url, &new_url, &flags), invalid_arg, return);
1441
1442 zend_replace_error_handling(EH_THROW, php_http_exception_bad_url_class_entry, &zeh TSRMLS_CC);
1443 {
1444 php_http_url_t *res_purl, *new_purl = NULL, *old_purl = NULL;
1445
1446 if (new_url) {
1447 new_purl = php_http_url_from_zval(new_url, flags TSRMLS_CC);
1448 if (!new_purl) {
1449 zend_restore_error_handling(&zeh TSRMLS_CC);
1450 return;
1451 }
1452 }
1453 if (old_url) {
1454 old_purl = php_http_url_from_zval(old_url, flags TSRMLS_CC);
1455 if (!old_purl) {
1456 if (new_purl) {
1457 php_http_url_free(&new_purl);
1458 }
1459 zend_restore_error_handling(&zeh TSRMLS_CC);
1460 return;
1461 }
1462 }
1463
1464 res_purl = php_http_url_mod(old_purl, new_purl, flags TSRMLS_CC);
1465 php_http_url_to_struct(res_purl, getThis() TSRMLS_CC);
1466
1467 php_http_url_free(&res_purl);
1468 if (old_purl) {
1469 php_http_url_free(&old_purl);
1470 }
1471 if (new_purl) {
1472 php_http_url_free(&new_purl);
1473 }
1474 }
1475 zend_restore_error_handling(&zeh TSRMLS_CC);
1476 }
1477
1478 ZEND_BEGIN_ARG_INFO_EX(ai_HttpUrl_mod, 0, 0, 1)
1479 ZEND_ARG_INFO(0, more_url_parts)
1480 ZEND_ARG_INFO(0, flags)
1481 ZEND_END_ARG_INFO();
1482 PHP_METHOD(HttpUrl, mod)
1483 {
1484 zval *new_url = NULL;
1485 long flags = PHP_HTTP_URL_JOIN_PATH | PHP_HTTP_URL_JOIN_QUERY;
1486 zend_error_handling zeh;
1487
1488 php_http_expect(SUCCESS == zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "z!|l", &new_url, &flags), invalid_arg, return);
1489
1490 zend_replace_error_handling(EH_THROW, php_http_exception_bad_url_class_entry, &zeh TSRMLS_CC);
1491 {
1492 php_http_url_t *new_purl = NULL, *old_purl = NULL;
1493
1494 if (new_url) {
1495 new_purl = php_http_url_from_zval(new_url, flags TSRMLS_CC);
1496 if (!new_purl) {
1497 zend_restore_error_handling(&zeh TSRMLS_CC);
1498 return;
1499 }
1500 }
1501
1502 if ((old_purl = php_http_url_from_struct(HASH_OF(getThis())))) {
1503 php_http_url_t *res_purl;
1504
1505 ZVAL_OBJVAL(return_value, zend_objects_clone_obj(getThis() TSRMLS_CC), 0);
1506
1507 res_purl = php_http_url_mod(old_purl, new_purl, flags TSRMLS_CC);
1508 php_http_url_to_struct(res_purl, return_value TSRMLS_CC);
1509
1510 php_http_url_free(&res_purl);
1511 php_http_url_free(&old_purl);
1512 }
1513 if (new_purl) {
1514 php_http_url_free(&new_purl);
1515 }
1516 }
1517 zend_restore_error_handling(&zeh TSRMLS_CC);
1518 }
1519
1520 ZEND_BEGIN_ARG_INFO_EX(ai_HttpUrl_toString, 0, 0, 0)
1521 ZEND_END_ARG_INFO();
1522 PHP_METHOD(HttpUrl, toString)
1523 {
1524 if (SUCCESS == zend_parse_parameters_none()) {
1525 php_http_url_t *purl;
1526
1527 if ((purl = php_http_url_from_struct(HASH_OF(getThis())))) {
1528 char *str;
1529 size_t len;
1530
1531 php_http_url_to_string(purl, &str, &len, 0);
1532 php_http_url_free(&purl);
1533 RETURN_STRINGL(str, len, 0);
1534 }
1535 }
1536 RETURN_EMPTY_STRING();
1537 }
1538
1539 ZEND_BEGIN_ARG_INFO_EX(ai_HttpUrl_toArray, 0, 0, 0)
1540 ZEND_END_ARG_INFO();
1541 PHP_METHOD(HttpUrl, toArray)
1542 {
1543 php_http_url_t *purl;
1544
1545 if (SUCCESS != zend_parse_parameters_none()) {
1546 return;
1547 }
1548
1549 /* strip any non-URL properties */
1550 purl = php_http_url_from_struct(HASH_OF(getThis()));
1551 php_http_url_to_struct(purl, return_value TSRMLS_CC);
1552 php_http_url_free(&purl);
1553 }
1554
1555 static zend_function_entry php_http_url_methods[] = {
1556 PHP_ME(HttpUrl, __construct, ai_HttpUrl___construct, ZEND_ACC_PUBLIC|ZEND_ACC_CTOR)
1557 PHP_ME(HttpUrl, mod, ai_HttpUrl_mod, ZEND_ACC_PUBLIC)
1558 PHP_ME(HttpUrl, toString, ai_HttpUrl_toString, ZEND_ACC_PUBLIC)
1559 ZEND_MALIAS(HttpUrl, __toString, toString, ai_HttpUrl_toString, ZEND_ACC_PUBLIC)
1560 PHP_ME(HttpUrl, toArray, ai_HttpUrl_toArray, ZEND_ACC_PUBLIC)
1561 EMPTY_FUNCTION_ENTRY
1562 };
1563
1564 zend_class_entry *php_http_url_class_entry;
1565
1566 PHP_MINIT_FUNCTION(http_url)
1567 {
1568 zend_class_entry ce = {0};
1569
1570 INIT_NS_CLASS_ENTRY(ce, "http", "Url", php_http_url_methods);
1571 php_http_url_class_entry = zend_register_internal_class(&ce TSRMLS_CC);
1572
1573 zend_declare_property_null(php_http_url_class_entry, ZEND_STRL("scheme"), ZEND_ACC_PUBLIC TSRMLS_CC);
1574 zend_declare_property_null(php_http_url_class_entry, ZEND_STRL("user"), ZEND_ACC_PUBLIC TSRMLS_CC);
1575 zend_declare_property_null(php_http_url_class_entry, ZEND_STRL("pass"), ZEND_ACC_PUBLIC TSRMLS_CC);
1576 zend_declare_property_null(php_http_url_class_entry, ZEND_STRL("host"), ZEND_ACC_PUBLIC TSRMLS_CC);
1577 zend_declare_property_null(php_http_url_class_entry, ZEND_STRL("port"), ZEND_ACC_PUBLIC TSRMLS_CC);
1578 zend_declare_property_null(php_http_url_class_entry, ZEND_STRL("path"), ZEND_ACC_PUBLIC TSRMLS_CC);
1579 zend_declare_property_null(php_http_url_class_entry, ZEND_STRL("query"), ZEND_ACC_PUBLIC TSRMLS_CC);
1580 zend_declare_property_null(php_http_url_class_entry, ZEND_STRL("fragment"), ZEND_ACC_PUBLIC TSRMLS_CC);
1581
1582 zend_declare_class_constant_long(php_http_url_class_entry, ZEND_STRL("REPLACE"), PHP_HTTP_URL_REPLACE TSRMLS_CC);
1583 zend_declare_class_constant_long(php_http_url_class_entry, ZEND_STRL("JOIN_PATH"), PHP_HTTP_URL_JOIN_PATH TSRMLS_CC);
1584 zend_declare_class_constant_long(php_http_url_class_entry, ZEND_STRL("JOIN_QUERY"), PHP_HTTP_URL_JOIN_QUERY TSRMLS_CC);
1585 zend_declare_class_constant_long(php_http_url_class_entry, ZEND_STRL("STRIP_USER"), PHP_HTTP_URL_STRIP_USER TSRMLS_CC);
1586 zend_declare_class_constant_long(php_http_url_class_entry, ZEND_STRL("STRIP_PASS"), PHP_HTTP_URL_STRIP_PASS TSRMLS_CC);
1587 zend_declare_class_constant_long(php_http_url_class_entry, ZEND_STRL("STRIP_AUTH"), PHP_HTTP_URL_STRIP_AUTH TSRMLS_CC);
1588 zend_declare_class_constant_long(php_http_url_class_entry, ZEND_STRL("STRIP_PORT"), PHP_HTTP_URL_STRIP_PORT TSRMLS_CC);
1589 zend_declare_class_constant_long(php_http_url_class_entry, ZEND_STRL("STRIP_PATH"), PHP_HTTP_URL_STRIP_PATH TSRMLS_CC);
1590 zend_declare_class_constant_long(php_http_url_class_entry, ZEND_STRL("STRIP_QUERY"), PHP_HTTP_URL_STRIP_QUERY TSRMLS_CC);
1591 zend_declare_class_constant_long(php_http_url_class_entry, ZEND_STRL("STRIP_FRAGMENT"), PHP_HTTP_URL_STRIP_FRAGMENT TSRMLS_CC);
1592 zend_declare_class_constant_long(php_http_url_class_entry, ZEND_STRL("STRIP_ALL"), PHP_HTTP_URL_STRIP_ALL TSRMLS_CC);
1593 zend_declare_class_constant_long(php_http_url_class_entry, ZEND_STRL("FROM_ENV"), PHP_HTTP_URL_FROM_ENV TSRMLS_CC);
1594 zend_declare_class_constant_long(php_http_url_class_entry, ZEND_STRL("SANITIZE_PATH"), PHP_HTTP_URL_SANITIZE_PATH TSRMLS_CC);
1595
1596 #ifdef PHP_HTTP_HAVE_WCHAR
1597 zend_declare_class_constant_long(php_http_url_class_entry, ZEND_STRL("PARSE_MBLOC"), PHP_HTTP_URL_PARSE_MBLOC TSRMLS_CC);
1598 #endif
1599 zend_declare_class_constant_long(php_http_url_class_entry, ZEND_STRL("PARSE_MBUTF8"), PHP_HTTP_URL_PARSE_MBUTF8 TSRMLS_CC);
1600 #if defined(PHP_HTTP_HAVE_IDN) || defined(HAVE_UIDNA_IDNTOASCII)
1601 zend_declare_class_constant_long(php_http_url_class_entry, ZEND_STRL("PARSE_TOIDN"), PHP_HTTP_URL_PARSE_TOIDN TSRMLS_CC);
1602 #endif
1603 zend_declare_class_constant_long(php_http_url_class_entry, ZEND_STRL("PARSE_TOPCT"), PHP_HTTP_URL_PARSE_TOPCT TSRMLS_CC);
1604
1605 return SUCCESS;
1606 }
1607
1608
1609 /*
1610 * Local variables:
1611 * tab-width: 4
1612 * c-basic-offset: 4
1613 * End:
1614 * vim600: noet sw=4 ts=4 fdm=marker
1615 * vim<600: noet sw=4 ts=4
1616 */
1617
Extended HTTP Support