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* fix http_split_response[_ex]()
[m6w6/ext-http] / http_api.c
1 /*
2 +----------------------------------------------------------------------+
3 | PECL :: http |
4 +----------------------------------------------------------------------+
5 | This source file is subject to version 3.0 of the PHP license, that |
6 | is bundled with this package in the file LICENSE, and is available |
7 | through the world-wide-web at http://www.php.net/license/3_0.txt. |
8 | If you did not receive a copy of the PHP license and are unable to |
9 | obtain it through the world-wide-web, please send a note to |
10 | license@php.net so we can mail you a copy immediately. |
11 +----------------------------------------------------------------------+
12 | Copyright (c) 2004-2005 Michael Wallner <mike@php.net> |
13 +----------------------------------------------------------------------+
14 */
15
16 /* $Id$ */
17
18 #define _WINSOCKAPI_
19 #define ZEND_INCLUDE_FULL_WINDOWS_HEADERS
20
21 #ifdef HAVE_CONFIG_H
22 # include "config.h"
23 #endif
24
25 #include <ctype.h>
26
27 #include "php.h"
28 #include "php_version.h"
29 #include "php_streams.h"
30 #include "snprintf.h"
31 #include "ext/standard/md5.h"
32 #include "ext/standard/url.h"
33 #include "ext/standard/base64.h"
34 #include "ext/standard/php_string.h"
35 #include "ext/standard/php_smart_str.h"
36 #include "ext/standard/php_lcg.h"
37
38 #include "SAPI.h"
39
40 #ifdef ZEND_ENGINE_2
41 # include "ext/standard/php_http.h"
42 #endif
43
44 #include "php_http.h"
45 #include "php_http_api.h"
46 #include "php_http_std_defs.h"
47
48 ZEND_DECLARE_MODULE_GLOBALS(http)
49
50 /* {{{ day/month names */
51 static const char *days[] = {
52 "Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"
53 };
54 static const char *wkdays[] = {
55 "Mon", "Tue", "Wed", "Thu", "Fri", "Sat", "Sun"
56 };
57 static const char *weekdays[] = {
58 "Monday", "Tuesday", "Wednesday",
59 "Thursday", "Friday", "Saturday", "Sunday"
60 };
61 static const char *months[] = {
62 "Jan", "Feb", "Mar", "Apr", "May", "Jun",
63 "Jul", "Aug", "Sep", "Okt", "Nov", "Dec"
64 };
65 enum assume_next {
66 DATE_MDAY,
67 DATE_YEAR,
68 DATE_TIME
69 };
70 static const struct time_zone {
71 const char *name;
72 const int offset;
73 } time_zones[] = {
74 {"GMT", 0}, /* Greenwich Mean */
75 {"UTC", 0}, /* Universal (Coordinated) */
76 {"WET", 0}, /* Western European */
77 {"BST", 0}, /* British Summer */
78 {"WAT", 60}, /* West Africa */
79 {"AST", 240}, /* Atlantic Standard */
80 {"ADT", 240}, /* Atlantic Daylight */
81 {"EST", 300}, /* Eastern Standard */
82 {"EDT", 300}, /* Eastern Daylight */
83 {"CST", 360}, /* Central Standard */
84 {"CDT", 360}, /* Central Daylight */
85 {"MST", 420}, /* Mountain Standard */
86 {"MDT", 420}, /* Mountain Daylight */
87 {"PST", 480}, /* Pacific Standard */
88 {"PDT", 480}, /* Pacific Daylight */
89 {"YST", 540}, /* Yukon Standard */
90 {"YDT", 540}, /* Yukon Daylight */
91 {"HST", 600}, /* Hawaii Standard */
92 {"HDT", 600}, /* Hawaii Daylight */
93 {"CAT", 600}, /* Central Alaska */
94 {"AHST", 600}, /* Alaska-Hawaii Standard */
95 {"NT", 660}, /* Nome */
96 {"IDLW", 720}, /* International Date Line West */
97 {"CET", -60}, /* Central European */
98 {"MET", -60}, /* Middle European */
99 {"MEWT", -60}, /* Middle European Winter */
100 {"MEST", -120}, /* Middle European Summer */
101 {"CEST", -120}, /* Central European Summer */
102 {"MESZ", -60}, /* Middle European Summer */
103 {"FWT", -60}, /* French Winter */
104 {"FST", -60}, /* French Summer */
105 {"EET", -120}, /* Eastern Europe, USSR Zone 1 */
106 {"WAST", -420}, /* West Australian Standard */
107 {"WADT", -420}, /* West Australian Daylight */
108 {"CCT", -480}, /* China Coast, USSR Zone 7 */
109 {"JST", -540}, /* Japan Standard, USSR Zone 8 */
110 {"EAST", -600}, /* Eastern Australian Standard */
111 {"EADT", -600}, /* Eastern Australian Daylight */
112 {"GST", -600}, /* Guam Standard, USSR Zone 9 */
113 {"NZT", -720}, /* New Zealand */
114 {"NZST", -720}, /* New Zealand Standard */
115 {"NZDT", -720}, /* New Zealand Daylight */
116 {"IDLE", -720}, /* International Date Line East */
117 };
118 /* }}} */
119
120 /* {{{ internals */
121
122 static int http_sort_q(const void *a, const void *b TSRMLS_DC);
123 #define http_send_chunk(d, b, e, m) _http_send_chunk((d), (b), (e), (m) TSRMLS_CC)
124 static STATUS _http_send_chunk(const void *data, const size_t begin, const size_t end, const http_send_mode mode TSRMLS_DC);
125
126 static int check_day(char *day, size_t len);
127 static int check_month(char *month);
128 static int check_tzone(char *tzone);
129
130 static int http_ob_stack_get(php_ob_buffer *, php_ob_buffer **);
131
132 /* {{{ static int http_sort_q(const void *, const void *) */
133 static int http_sort_q(const void *a, const void *b TSRMLS_DC)
134 {
135 Bucket *f, *s;
136 zval result, *first, *second;
137
138 f = *((Bucket **) a);
139 s = *((Bucket **) b);
140
141 first = *((zval **) f->pData);
142 second= *((zval **) s->pData);
143
144 if (numeric_compare_function(&result, first, second TSRMLS_CC) != SUCCESS) {
145 return 0;
146 }
147 return (Z_LVAL(result) > 0 ? -1 : (Z_LVAL(result) < 0 ? 1 : 0));
148 }
149 /* }}} */
150
151 /* {{{ static STATUS http_send_chunk(const void *, size_t, size_t,
152 http_send_mode) */
153 static STATUS _http_send_chunk(const void *data, const size_t begin,
154 const size_t end, const http_send_mode mode TSRMLS_DC)
155 {
156 char *buf;
157 size_t read = 0;
158 long len = end - begin;
159 php_stream *s;
160
161 switch (mode)
162 {
163 case SEND_RSRC:
164 s = (php_stream *) data;
165 if (php_stream_seek(s, begin, SEEK_SET)) {
166 return FAILURE;
167 }
168 buf = (char *) ecalloc(1, HTTP_SENDBUF_SIZE);
169 /* read into buf and write out */
170 while ((len -= HTTP_SENDBUF_SIZE) >= 0) {
171 if (!(read = php_stream_read(s, buf, HTTP_SENDBUF_SIZE))) {
172 efree(buf);
173 return FAILURE;
174 }
175 if (read - php_body_write(buf, read TSRMLS_CC)) {
176 efree(buf);
177 return FAILURE;
178 }
179 }
180
181 /* read & write left over */
182 if (len) {
183 if (read = php_stream_read(s, buf, HTTP_SENDBUF_SIZE + len)) {
184 if (read - php_body_write(buf, read TSRMLS_CC)) {
185 efree(buf);
186 return FAILURE;
187 }
188 } else {
189 efree(buf);
190 return FAILURE;
191 }
192 }
193 efree(buf);
194 return SUCCESS;
195 break;
196
197 case SEND_DATA:
198 return len == php_body_write(((char *)data) + begin, len TSRMLS_CC)
199 ? SUCCESS : FAILURE;
200 break;
201
202 default:
203 return FAILURE;
204 break;
205 }
206 }
207 /* }}} */
208
209 /* {{{ Day/Month/TZ checks for http_parse_date()
210 Originally by libcurl, Copyright (C) 1998 - 2004, Daniel Stenberg, <daniel@haxx.se>, et al. */
211 static int check_day(char *day, size_t len)
212 {
213 int i;
214 const char * const *check = (len > 3) ? &weekdays[0] : &wkdays[0];
215 for (i = 0; i < 7; i++) {
216 if (!strcmp(day, check[0])) {
217 return i;
218 }
219 check++;
220 }
221 return -1;
222 }
223
224 static int check_month(char *month)
225 {
226 int i;
227 const char * const *check = &months[0];
228 for (i = 0; i < 12; i++) {
229 if (!strcmp(month, check[0])) {
230 return i;
231 }
232 check++;
233 }
234 return -1;
235 }
236
237 /* return the time zone offset between GMT and the input one, in number
238 of seconds or -1 if the timezone wasn't found/legal */
239
240 static int check_tzone(char *tzone)
241 {
242 int i;
243 const struct time_zone *check = time_zones;
244 for (i = 0; i < sizeof(time_zones) / sizeof(time_zones[0]); i++) {
245 if (!strcmp(tzone, check->name)) {
246 return check->offset * 60;
247 }
248 check++;
249 }
250 return -1;
251 }
252 /* }}} */
253
254 /* char *pretty_key(char *, int, int, int) */
255 char *pretty_key(char *key, int key_len, int uctitle, int xhyphen)
256 {
257 if (key && key_len) {
258 int i, wasalpha;
259 if (wasalpha = isalpha(key[0])) {
260 key[0] = uctitle ? toupper(key[0]) : tolower(key[0]);
261 }
262 for (i = 1; i < key_len; i++) {
263 if (isalpha(key[i])) {
264 key[i] = ((!wasalpha) && uctitle) ? toupper(key[i]) : tolower(key[i]);
265 wasalpha = 1;
266 } else {
267 if (xhyphen && (key[i] == '_')) {
268 key[i] = '-';
269 }
270 wasalpha = 0;
271 }
272 }
273 }
274 return key;
275 }
276 /* }}} */
277
278 /* {{{ static STATUS http_ob_stack_get(php_ob_buffer *, php_ob_buffer **) */
279 static STATUS http_ob_stack_get(php_ob_buffer *o, php_ob_buffer **s)
280 {
281 static int i = 0;
282 php_ob_buffer *b = emalloc(sizeof(php_ob_buffer));
283 b->handler_name = estrdup(o->handler_name);
284 b->buffer = estrndup(o->buffer, o->text_length);
285 b->text_length = o->text_length;
286 b->chunk_size = o->chunk_size;
287 b->erase = o->erase;
288 s[i++] = b;
289 return SUCCESS;
290 }
291 /* }}} */
292
293 /* }}} internals */
294
295 /* {{{ public API */
296
297 /* {{{ char *http_date(time_t) */
298 PHP_HTTP_API char *_http_date(time_t t TSRMLS_DC)
299 {
300 struct tm *gmtime, tmbuf;
301
302 if (gmtime = php_gmtime_r(&t, &tmbuf)) {
303 char *date = ecalloc(1, 31);
304 snprintf(date, 30,
305 "%s, %02d %s %04d %02d:%02d:%02d GMT",
306 days[gmtime->tm_wday], gmtime->tm_mday,
307 months[gmtime->tm_mon], gmtime->tm_year + 1900,
308 gmtime->tm_hour, gmtime->tm_min, gmtime->tm_sec
309 );
310 return date;
311 }
312
313 return NULL;
314 }
315 /* }}} */
316
317 /* {{{ time_t http_parse_date(char *)
318 Originally by libcurl, Copyright (C) 1998 - 2004, Daniel Stenberg, <daniel@haxx.se>, et al. */
319 PHP_HTTP_API time_t _http_parse_date(const char *date)
320 {
321 time_t t = 0;
322 int tz_offset = -1, year = -1, month = -1, monthday = -1, weekday = -1,
323 hours = -1, minutes = -1, seconds = -1;
324 struct tm tm;
325 enum assume_next dignext = DATE_MDAY;
326 const char *indate = date;
327
328 int found = 0, part = 0; /* max 6 parts */
329
330 while (*date && (part < 6)) {
331 int found = 0;
332
333 while (*date && !isalnum(*date)) {
334 date++;
335 }
336
337 if (isalpha(*date)) {
338 /* a name coming up */
339 char buf[32] = "";
340 size_t len;
341 sscanf(date, "%31[A-Za-z]", buf);
342 len = strlen(buf);
343
344 if (weekday == -1) {
345 weekday = check_day(buf, len);
346 if (weekday != -1) {
347 found = 1;
348 }
349 }
350
351 if (!found && (month == -1)) {
352 month = check_month(buf);
353 if (month != -1) {
354 found = 1;
355 }
356 }
357
358 if (!found && (tz_offset == -1)) {
359 /* this just must be a time zone string */
360 tz_offset = check_tzone(buf);
361 if (tz_offset != -1) {
362 found = 1;
363 }
364 }
365
366 if (!found) {
367 return -1; /* bad string */
368 }
369 date += len;
370 }
371 else if (isdigit(*date)) {
372 /* a digit */
373 int val;
374 char *end;
375 if ((seconds == -1) &&
376 (3 == sscanf(date, "%02d:%02d:%02d", &hours, &minutes, &seconds))) {
377 /* time stamp! */
378 date += 8;
379 found = 1;
380 }
381 else {
382 val = (int) strtol(date, &end, 10);
383
384 if ((tz_offset == -1) && ((end - date) == 4) && (val < 1300) &&
385 (indate < date) && ((date[-1] == '+' || date[-1] == '-'))) {
386 /* four digits and a value less than 1300 and it is preceeded with
387 a plus or minus. This is a time zone indication. */
388 found = 1;
389 tz_offset = (val / 100 * 60 + val % 100) * 60;
390
391 /* the + and - prefix indicates the local time compared to GMT,
392 this we need ther reversed math to get what we want */
393 tz_offset = date[-1] == '+' ? -tz_offset : tz_offset;
394 }
395
396 if (((end - date) == 8) && (year == -1) && (month == -1) && (monthday == -1)) {
397 /* 8 digits, no year, month or day yet. This is YYYYMMDD */
398 found = 1;
399 year = val / 10000;
400 month = (val % 10000) / 100 - 1; /* month is 0 - 11 */
401 monthday = val % 100;
402 }
403
404 if (!found && (dignext == DATE_MDAY) && (monthday == -1)) {
405 if ((val > 0) && (val < 32)) {
406 monthday = val;
407 found = 1;
408 }
409 dignext = DATE_YEAR;
410 }
411
412 if (!found && (dignext == DATE_YEAR) && (year == -1)) {
413 year = val;
414 found = 1;
415 if (year < 1900) {
416 year += year > 70 ? 1900 : 2000;
417 }
418 if(monthday == -1) {
419 dignext = DATE_MDAY;
420 }
421 }
422
423 if (!found) {
424 return -1;
425 }
426
427 date = end;
428 }
429 }
430
431 part++;
432 }
433
434 if (-1 == seconds) {
435 seconds = minutes = hours = 0; /* no time, make it zero */
436 }
437
438 if ((-1 == monthday) || (-1 == month) || (-1 == year)) {
439 /* lacks vital info, fail */
440 return -1;
441 }
442
443 if (sizeof(time_t) < 5) {
444 /* 32 bit time_t can only hold dates to the beginning of 2038 */
445 if (year > 2037) {
446 return 0x7fffffff;
447 }
448 }
449
450 tm.tm_sec = seconds;
451 tm.tm_min = minutes;
452 tm.tm_hour = hours;
453 tm.tm_mday = monthday;
454 tm.tm_mon = month;
455 tm.tm_year = year - 1900;
456 tm.tm_wday = 0;
457 tm.tm_yday = 0;
458 tm.tm_isdst = 0;
459
460 t = mktime(&tm);
461
462 /* time zone adjust */
463 {
464 struct tm *gmt, keeptime2;
465 long delta;
466 time_t t2;
467
468 if(!(gmt = php_gmtime_r(&t, &keeptime2))) {
469 return -1; /* illegal date/time */
470 }
471
472 t2 = mktime(gmt);
473
474 /* Add the time zone diff (between the given timezone and GMT) and the
475 diff between the local time zone and GMT. */
476 delta = (tz_offset != -1 ? tz_offset : 0) + (t - t2);
477
478 if((delta > 0) && (t + delta < t)) {
479 return -1; /* time_t overflow */
480 }
481
482 t += delta;
483 }
484
485 return t;
486 }
487 /* }}} */
488
489 /* {{{ char *http_etag(void *, size_t, http_send_mode) */
490 PHP_HTTP_API char *_http_etag(const void *data_ptr, const size_t data_len,
491 const http_send_mode data_mode TSRMLS_DC)
492 {
493 char ssb_buf[128] = {0};
494 unsigned char digest[16];
495 PHP_MD5_CTX ctx;
496 char *new_etag = ecalloc(1, 33);
497
498 PHP_MD5Init(&ctx);
499
500 switch (data_mode)
501 {
502 case SEND_DATA:
503 PHP_MD5Update(&ctx, data_ptr, data_len);
504 break;
505
506 case SEND_RSRC:
507 if (!HTTP_G(ssb).sb.st_ino) {
508 if (php_stream_stat((php_stream *) data_ptr, &HTTP_G(ssb))) {
509 return NULL;
510 }
511 }
512 snprintf(ssb_buf, 127, "%ld=%ld=%ld",
513 HTTP_G(ssb).sb.st_mtime,
514 HTTP_G(ssb).sb.st_ino,
515 HTTP_G(ssb).sb.st_size
516 );
517 PHP_MD5Update(&ctx, ssb_buf, strlen(ssb_buf));
518 break;
519
520 default:
521 efree(new_etag);
522 return NULL;
523 break;
524 }
525
526 PHP_MD5Final(digest, &ctx);
527 make_digest(new_etag, digest);
528
529 return new_etag;
530 }
531 /* }}} */
532
533 /* {{{ time_t http_lmod(void *, http_send_mode) */
534 PHP_HTTP_API time_t _http_lmod(const void *data_ptr, const http_send_mode data_mode TSRMLS_DC)
535 {
536 switch (data_mode)
537 {
538 case SEND_DATA:
539 {
540 return time(NULL);
541 }
542
543 case SEND_RSRC:
544 {
545 if (!HTTP_G(ssb).sb.st_mtime) {
546 if (php_stream_stat((php_stream *) data_ptr, &HTTP_G(ssb))) {
547 return 0;
548 }
549 }
550 return HTTP_G(ssb).sb.st_mtime;
551 }
552
553 default:
554 {
555 if (!HTTP_G(ssb).sb.st_mtime) {
556 if(php_stream_stat_path(Z_STRVAL_P((zval *) data_ptr), &HTTP_G(ssb))) {
557 return 0;
558 }
559 }
560 return HTTP_G(ssb).sb.st_mtime;
561 }
562 }
563 }
564 /* }}} */
565
566 /* {{{ STATUS http_send_status_header(int, char *) */
567 PHP_HTTP_API STATUS _http_send_status_header(const int status, const char *header TSRMLS_DC)
568 {
569 sapi_header_line h = {(char *) header, strlen(header), status};
570 return sapi_header_op(SAPI_HEADER_REPLACE, &h TSRMLS_CC);
571 }
572 /* }}} */
573
574 /* {{{ zval *http_get_server_var(char *) */
575 PHP_HTTP_API zval *_http_get_server_var(const char *key TSRMLS_DC)
576 {
577 zval **var;
578 if (SUCCESS == zend_hash_find(
579 HTTP_SERVER_VARS,
580 (char *) key, strlen(key) + 1, (void **) &var)) {
581 return *var;
582 }
583 return NULL;
584 }
585 /* }}} */
586
587 /* {{{ void http_ob_etaghandler(char *, uint, char **, uint *, int) */
588 PHP_HTTP_API void _http_ob_etaghandler(char *output, uint output_len,
589 char **handled_output, uint *handled_output_len, int mode TSRMLS_DC)
590 {
591 char etag[33] = { 0 };
592 unsigned char digest[16];
593
594 if (mode & PHP_OUTPUT_HANDLER_START) {
595 PHP_MD5Init(&HTTP_G(etag_md5));
596 }
597
598 PHP_MD5Update(&HTTP_G(etag_md5), output, output_len);
599
600 if (mode & PHP_OUTPUT_HANDLER_END) {
601 PHP_MD5Final(digest, &HTTP_G(etag_md5));
602
603 /* just do that if desired */
604 if (HTTP_G(etag_started)) {
605 make_digest(etag, digest);
606
607 if (http_etag_match("HTTP_IF_NONE_MATCH", etag)) {
608 http_send_status(304);
609 } else {
610 http_send_etag(etag, 32);
611 }
612 }
613 }
614
615 *handled_output_len = output_len;
616 *handled_output = estrndup(output, output_len);
617 }
618 /* }}} */
619
620 /* {{{ STATUS http_start_ob_handler(php_output_handler_func_t, char *, uint, zend_bool) */
621 PHP_HTTP_API STATUS _http_start_ob_handler(php_output_handler_func_t handler_func,
622 char *handler_name, uint chunk_size, zend_bool erase TSRMLS_DC)
623 {
624 php_ob_buffer **stack;
625 int count, i;
626
627 if (count = OG(ob_nesting_level)) {
628 stack = ecalloc(count, sizeof(php_ob_buffer *));
629
630 if (count > 1) {
631 zend_stack_apply_with_argument(&OG(ob_buffers), ZEND_STACK_APPLY_BOTTOMUP,
632 (int (*)(void *elem, void *)) http_ob_stack_get, stack);
633 }
634
635 if (count > 0) {
636 http_ob_stack_get(&OG(active_ob_buffer), stack);
637 }
638
639 while (OG(ob_nesting_level)) {
640 php_end_ob_buffer(0, 0 TSRMLS_CC);
641 }
642 }
643
644 php_ob_set_internal_handler(handler_func, chunk_size, handler_name, erase TSRMLS_CC);
645
646 for (i = 0; i < count; i++) {
647 php_ob_buffer *s = stack[i];
648 if (strcmp(s->handler_name, "default output handler")) {
649 php_start_ob_buffer_named(s->handler_name, s->chunk_size, s->erase TSRMLS_CC);
650 }
651 php_body_write(s->buffer, s->text_length TSRMLS_CC);
652 efree(s->handler_name);
653 efree(s->buffer);
654 efree(s);
655 }
656 if (count) {
657 efree(stack);
658 }
659
660 return SUCCESS;
661 }
662 /* }}} */
663
664 /* {{{ int http_modified_match(char *, int) */
665 PHP_HTTP_API int _http_modified_match(const char *entry, const time_t t TSRMLS_DC)
666 {
667 int retval;
668 zval *zmodified;
669 char *modified, *chr_ptr;
670
671 HTTP_GSC(zmodified, entry, 0);
672
673 modified = estrndup(Z_STRVAL_P(zmodified), Z_STRLEN_P(zmodified));
674 if (chr_ptr = strrchr(modified, ';')) {
675 chr_ptr = 0;
676 }
677 retval = (t <= http_parse_date(modified));
678 efree(modified);
679 return retval;
680 }
681 /* }}} */
682
683 /* {{{ int http_etag_match(char *, char *) */
684 PHP_HTTP_API int _http_etag_match(const char *entry, const char *etag TSRMLS_DC)
685 {
686 zval *zetag;
687 char *quoted_etag;
688 STATUS result;
689
690 HTTP_GSC(zetag, entry, 0);
691
692 if (NULL != strchr(Z_STRVAL_P(zetag), '*')) {
693 return 1;
694 }
695
696 quoted_etag = (char *) emalloc(strlen(etag) + 3);
697 sprintf(quoted_etag, "\"%s\"", etag);
698
699 if (!strchr(Z_STRVAL_P(zetag), ',')) {
700 result = !strcmp(Z_STRVAL_P(zetag), quoted_etag);
701 } else {
702 result = (NULL != strstr(Z_STRVAL_P(zetag), quoted_etag));
703 }
704 efree(quoted_etag);
705 return result;
706 }
707 /* }}} */
708
709 /* {{{ STATUS http_send_last_modified(int) */
710 PHP_HTTP_API STATUS _http_send_last_modified(const time_t t TSRMLS_DC)
711 {
712 char *date = NULL;
713 if (date = http_date(t)) {
714 char modified[96] = "Last-Modified: ";
715 strcat(modified, date);
716 efree(date);
717
718 /* remember */
719 HTTP_G(lmod) = t;
720
721 return http_send_header(modified);
722 }
723 return FAILURE;
724 }
725 /* }}} */
726
727 /* {{{ static STATUS http_send_etag(char *, int) */
728 PHP_HTTP_API STATUS _http_send_etag(const char *etag,
729 const int etag_len TSRMLS_DC)
730 {
731 STATUS status;
732 char *etag_header;
733
734 if (!etag_len){
735 php_error_docref(NULL TSRMLS_CC,E_ERROR,
736 "Attempt to send empty ETag (previous: %s)\n", HTTP_G(etag));
737 return FAILURE;
738 }
739
740 /* remember */
741 if (HTTP_G(etag)) {
742 efree(HTTP_G(etag));
743 }
744 HTTP_G(etag) = estrdup(etag);
745
746 etag_header = ecalloc(1, sizeof("ETag: \"\"") + etag_len);
747 sprintf(etag_header, "ETag: \"%s\"", etag);
748 if (SUCCESS != (status = http_send_header(etag_header))) {
749 php_error_docref(NULL TSRMLS_CC, E_WARNING, "Couldn't send '%s' header", etag_header);
750 }
751 efree(etag_header);
752 return status;
753 }
754 /* }}} */
755
756 /* {{{ STATUS http_send_cache_control(char *, size_t) */
757 PHP_HTTP_API STATUS _http_send_cache_control(const char *cache_control,
758 const size_t cc_len TSRMLS_DC)
759 {
760 STATUS status;
761 char *cc_header = ecalloc(1, sizeof("Cache-Control: ") + cc_len);
762
763 sprintf(cc_header, "Cache-Control: %s", cache_control);
764 if (SUCCESS != (status = http_send_header(cc_header))) {
765 php_error_docref(NULL TSRMLS_CC, E_NOTICE,
766 "Could not send '%s' header", cc_header);
767 }
768 efree(cc_header);
769 return status;
770 }
771 /* }}} */
772
773 /* {{{ STATUS http_send_content_type(char *, size_t) */
774 PHP_HTTP_API STATUS _http_send_content_type(const char *content_type,
775 const size_t ct_len TSRMLS_DC)
776 {
777 STATUS status;
778 char *ct_header;
779
780 if (!strchr(content_type, '/')) {
781 php_error_docref(NULL TSRMLS_CC, E_WARNING,
782 "Content-Type '%s' doesn't seem to consist of a primary and a secondary part",
783 content_type);
784 return FAILURE;
785 }
786
787 /* remember for multiple ranges */
788 if (HTTP_G(ctype)) {
789 efree(HTTP_G(ctype));
790 }
791 HTTP_G(ctype) = estrndup(content_type, ct_len);
792
793 ct_header = ecalloc(1, sizeof("Content-Type: ") + ct_len);
794 sprintf(ct_header, "Content-Type: %s", content_type);
795
796 if (SUCCESS != (status = http_send_header(ct_header))) {
797 php_error_docref(NULL TSRMLS_CC, E_WARNING,
798 "Couldn't send '%s' header", ct_header);
799 }
800 efree(ct_header);
801 return status;
802 }
803 /* }}} */
804
805 /* {{{ STATUS http_send_content_disposition(char *, size_t, zend_bool) */
806 PHP_HTTP_API STATUS _http_send_content_disposition(const char *filename,
807 const size_t f_len, const int send_inline TSRMLS_DC)
808 {
809 STATUS status;
810 char *cd_header;
811
812 if (send_inline) {
813 cd_header = ecalloc(1, sizeof("Content-Disposition: inline; filename=\"\"") + f_len);
814 sprintf(cd_header, "Content-Disposition: inline; filename=\"%s\"", filename);
815 } else {
816 cd_header = ecalloc(1, sizeof("Content-Disposition: attachment; filename=\"\"") + f_len);
817 sprintf(cd_header, "Content-Disposition: attachment; filename=\"%s\"", filename);
818 }
819
820 if (SUCCESS != (status = http_send_header(cd_header))) {
821 php_error_docref(NULL TSRMLS_CC, E_WARNING, "Couldn't send '%s' header", cd_header);
822 }
823 efree(cd_header);
824 return status;
825 }
826 /* }}} */
827
828 /* {{{ STATUS http_cache_last_modified(time_t, time_t, char *, size_t) */
829 PHP_HTTP_API STATUS _http_cache_last_modified(const time_t last_modified,
830 const time_t send_modified, const char *cache_control, const size_t cc_len TSRMLS_DC)
831 {
832 if (cc_len) {
833 http_send_cache_control(cache_control, cc_len);
834 }
835
836 if (http_modified_match("HTTP_IF_MODIFIED_SINCE", last_modified)) {
837 if (SUCCESS == http_send_status(304)) {
838 zend_bailout();
839 } else {
840 php_error_docref(NULL TSRMLS_CC, E_WARNING, "Could not send 304 Not Modified");
841 return FAILURE;
842 }
843 }
844 return http_send_last_modified(send_modified);
845 }
846 /* }}} */
847
848 /* {{{ STATUS http_cache_etag(char *, size_t, char *, size_t) */
849 PHP_HTTP_API STATUS _http_cache_etag(const char *etag, const size_t etag_len,
850 const char *cache_control, const size_t cc_len TSRMLS_DC)
851 {
852 if (cc_len) {
853 http_send_cache_control(cache_control, cc_len);
854 }
855
856 if (etag_len) {
857 http_send_etag(etag, etag_len);
858 if (http_etag_match("HTTP_IF_NONE_MATCH", etag)) {
859 if (SUCCESS == http_send_status(304)) {
860 zend_bailout();
861 } else {
862 php_error_docref(NULL TSRMLS_CC, E_WARNING, "Could not send 304 Not Modified");
863 return FAILURE;
864 }
865 }
866 }
867
868 /* if no etag is given and we didn't already start ob_etaghandler -- start it */
869 if (!HTTP_G(etag_started)) {
870 if (SUCCESS == http_start_ob_handler(_http_ob_etaghandler, "ob_etaghandler", 4096, 1)) {
871 HTTP_G(etag_started) = 1;
872 return SUCCESS;
873 } else {
874 php_error_docref(NULL TSRMLS_CC, E_WARNING, "Could not start ob_etaghandler");
875 return FAILURE;
876 }
877 }
878 return SUCCESS;
879 }
880 /* }}} */
881
882 /* {{{ char *http_absolute_uri(char *) */
883 PHP_HTTP_API char *_http_absolute_uri_ex(
884 const char *url, size_t url_len,
885 const char *proto, size_t proto_len,
886 const char *host, size_t host_len,
887 unsigned port TSRMLS_DC)
888 {
889 #ifdef ZEND_ENGINE_2
890 struct servent *se;
891 #endif
892 php_url *purl, furl = {NULL};
893 size_t full_len = 0;
894 zval *zhost = NULL;
895 char *scheme = NULL, *URL = ecalloc(1, HTTP_URI_MAXLEN + 1);
896
897 if ((!url || !url_len) && (
898 (!(url = SG(request_info).request_uri)) ||
899 (!(url_len = strlen(SG(request_info).request_uri))))) {
900 php_error_docref(NULL TSRMLS_CC, E_WARNING,
901 "Cannot build an absolute URI if supplied URL and REQUEST_URI is empty");
902 return NULL;
903 }
904
905 if (!(purl = php_url_parse(url))) {
906 php_error_docref(NULL TSRMLS_CC, E_WARNING, "Could not parse supplied URL");
907 return NULL;
908 }
909
910 furl.user = purl->user;
911 furl.pass = purl->pass;
912 furl.path = purl->path;
913 furl.query = purl->query;
914 furl.fragment = purl->fragment;
915
916 if (proto) {
917 furl.scheme = scheme = estrdup(proto);
918 } else if (purl->scheme) {
919 furl.scheme = purl->scheme;
920 #ifdef ZEND_ENGINE_2
921 } else if (port && (se = getservbyport(htons(port), "tcp"))) {
922 furl.scheme = (scheme = estrdup(se->s_name));
923 #endif
924 } else {
925 furl.scheme = "http";
926 }
927
928 if (port) {
929 furl.port = port;
930 } else if (purl->port) {
931 furl.port = purl->port;
932 } else if (strncmp(furl.scheme, "http", 4)) {
933 #ifdef ZEND_ENGINE_2
934 if (se = getservbyname(furl.scheme, "tcp")) {
935 furl.port = ntohs(se->s_port);
936 } else
937 #endif
938 furl.port = 80;
939 } else {
940 furl.port = (furl.scheme[5] == 's') ? 443 : 80;
941 }
942
943 if (host) {
944 furl.host = (char *) host;
945 } else if (purl->host) {
946 furl.host = purl->host;
947 } else if ( (zhost = http_get_server_var("HTTP_HOST")) ||
948 (zhost = http_get_server_var("SERVER_NAME"))) {
949 furl.host = Z_STRVAL_P(zhost);
950 } else {
951 furl.host = "localhost";
952 }
953
954 #define HTTP_URI_STRLCATS(URL, full_len, add_string) HTTP_URI_STRLCAT(URL, full_len, add_string, sizeof(add_string)-1)
955 #define HTTP_URI_STRLCATL(URL, full_len, add_string) HTTP_URI_STRLCAT(URL, full_len, add_string, strlen(add_string))
956 #define HTTP_URI_STRLCAT(URL, full_len, add_string, add_len) \
957 if ((full_len += add_len) > HTTP_URI_MAXLEN) { \
958 php_error_docref(NULL TSRMLS_CC, E_NOTICE, \
959 "Absolute URI would have exceeded max URI length (%d bytes) - " \
960 "tried to add %d bytes ('%s')", \
961 HTTP_URI_MAXLEN, add_len, add_string); \
962 if (scheme) { \
963 efree(scheme); \
964 } \
965 php_url_free(purl); \
966 return URL; \
967 } else { \
968 strcat(URL, add_string); \
969 }
970
971 HTTP_URI_STRLCATL(URL, full_len, furl.scheme);
972 HTTP_URI_STRLCATS(URL, full_len, "://");
973
974 if (furl.user) {
975 HTTP_URI_STRLCATL(URL, full_len, furl.user);
976 if (furl.pass) {
977 HTTP_URI_STRLCATS(URL, full_len, ":");
978 HTTP_URI_STRLCATL(URL, full_len, furl.pass);
979 }
980 HTTP_URI_STRLCATS(URL, full_len, "@");
981 }
982
983 HTTP_URI_STRLCATL(URL, full_len, furl.host);
984
985 if ( (strcmp(furl.scheme, "http") && (furl.port != 80)) ||
986 (strcmp(furl.scheme, "https") && (furl.port != 443))) {
987 char port_string[8] = {0};
988 snprintf(port_string, 7, ":%u", furl.port);
989 HTTP_URI_STRLCATL(URL, full_len, port_string);
990 }
991
992 if (furl.path) {
993 HTTP_URI_STRLCATL(URL, full_len, furl.path);
994 } else {
995 HTTP_URI_STRLCATS(URL, full_len, "/");
996 }
997
998 if (furl.query) {
999 HTTP_URI_STRLCATS(URL, full_len, "?");
1000 HTTP_URI_STRLCATL(URL, full_len, furl.query);
1001 }
1002
1003 if (furl.fragment) {
1004 HTTP_URI_STRLCATS(URL, full_len, "#");
1005 HTTP_URI_STRLCATL(URL, full_len, furl.fragment);
1006 }
1007
1008 if (scheme) {
1009 efree(scheme);
1010 }
1011 php_url_free(purl);
1012
1013 return URL;
1014 }
1015 /* }}} */
1016
1017 /* {{{ char *http_negotiate_q(char *, zval *, char *, hash_entry_type) */
1018 PHP_HTTP_API char *_http_negotiate_q(const char *entry, const zval *supported,
1019 const char *def TSRMLS_DC)
1020 {
1021 zval *zaccept, *zarray, *zdelim, **zentry, *zentries, **zsupp;
1022 char *q_ptr, *result;
1023 int i, c;
1024 double qual;
1025
1026 HTTP_GSC(zaccept, entry, estrdup(def));
1027
1028 MAKE_STD_ZVAL(zarray);
1029 array_init(zarray);
1030
1031 MAKE_STD_ZVAL(zdelim);
1032 ZVAL_STRING(zdelim, ",", 0);
1033 php_explode(zdelim, zaccept, zarray, -1);
1034 efree(zdelim);
1035
1036 MAKE_STD_ZVAL(zentries);
1037 array_init(zentries);
1038
1039 c = zend_hash_num_elements(Z_ARRVAL_P(zarray));
1040 for (i = 0; i < c; i++, zend_hash_move_forward(Z_ARRVAL_P(zarray))) {
1041
1042 if (SUCCESS != zend_hash_get_current_data(
1043 Z_ARRVAL_P(zarray), (void **) &zentry)) {
1044 php_error_docref(NULL TSRMLS_CC, E_WARNING,
1045 "Cannot parse %s header: %s", entry, Z_STRVAL_P(zaccept));
1046 break;
1047 }
1048
1049 /* check for qualifier */
1050 if (NULL != (q_ptr = strrchr(Z_STRVAL_PP(zentry), ';'))) {
1051 qual = strtod(q_ptr + 3, NULL);
1052 } else {
1053 qual = 1000.0 - i;
1054 }
1055
1056 /* walk through the supported array */
1057 FOREACH_VAL(supported, zsupp) {
1058 if (!strcasecmp(Z_STRVAL_PP(zsupp), Z_STRVAL_PP(zentry))) {
1059 add_assoc_double(zentries, Z_STRVAL_PP(zsupp), qual);
1060 break;
1061 }
1062 }
1063 }
1064
1065 zval_dtor(zarray);
1066 efree(zarray);
1067
1068 zend_hash_internal_pointer_reset(Z_ARRVAL_P(zentries));
1069
1070 if ( (SUCCESS != zend_hash_sort(Z_ARRVAL_P(zentries), zend_qsort,
1071 http_sort_q, 0 TSRMLS_CC)) ||
1072 (HASH_KEY_NON_EXISTANT == zend_hash_get_current_key(
1073 Z_ARRVAL_P(zentries), &result, 0, 1))) {
1074 result = estrdup(def);
1075 }
1076
1077 zval_dtor(zentries);
1078 efree(zentries);
1079
1080 return result;
1081 }
1082 /* }}} */
1083
1084 /* {{{ http_range_status http_get_request_ranges(HashTable *ranges, size_t) */
1085 PHP_HTTP_API http_range_status _http_get_request_ranges(HashTable *ranges,
1086 const size_t length TSRMLS_DC)
1087 {
1088 zval *zrange;
1089 char *range, c;
1090 long begin = -1, end = -1, *ptr;
1091
1092 HTTP_GSC(zrange, "HTTP_RANGE", RANGE_NO);
1093 range = Z_STRVAL_P(zrange);
1094
1095 if (strncmp(range, "bytes=", sizeof("bytes=") - 1)) {
1096 php_error_docref(NULL TSRMLS_CC, E_NOTICE, "Range header misses bytes=");
1097 return RANGE_NO;
1098 }
1099
1100 ptr = &begin;
1101 range += sizeof("bytes=") - 1;
1102
1103 do {
1104 switch (c = *(range++))
1105 {
1106 case '0':
1107 *ptr *= 10;
1108 break;
1109
1110 case '1': case '2': case '3':
1111 case '4': case '5': case '6':
1112 case '7': case '8': case '9':
1113 /*
1114 * If the value of the pointer is already set (non-negative)
1115 * then multiply its value by ten and add the current value,
1116 * else initialise the pointers value with the current value
1117 * --
1118 * This let us recognize empty fields when validating the
1119 * ranges, i.e. a "-10" for begin and "12345" for the end
1120 * was the following range request: "Range: bytes=0-12345";
1121 * While a "-1" for begin and "12345" for the end would
1122 * have been: "Range: bytes=-12345".
1123 */
1124 if (*ptr > 0) {
1125 *ptr *= 10;
1126 *ptr += c - '0';
1127 } else {
1128 *ptr = c - '0';
1129 }
1130 break;
1131
1132 case '-':
1133 ptr = &end;
1134 break;
1135
1136 case ' ':
1137 /* IE - ignore for now */
1138 break;
1139
1140 case 0:
1141 case ',':
1142
1143 if (length) {
1144 /* validate ranges */
1145 switch (begin)
1146 {
1147 /* "0-12345" */
1148 case -10:
1149 if ((length - end) < 1) {
1150 return RANGE_ERR;
1151 }
1152 begin = 0;
1153 break;
1154
1155 /* "-12345" */
1156 case -1:
1157 if ((length - end) < 1) {
1158 return RANGE_ERR;
1159 }
1160 begin = length - end;
1161 end = length;
1162 break;
1163
1164 /* "12345-(xxx)" */
1165 default:
1166 switch (end)
1167 {
1168 /* "12345-" */
1169 case -1:
1170 if ((length - begin) < 1) {
1171 return RANGE_ERR;
1172 }
1173 end = length - 1;
1174 break;
1175
1176 /* "12345-67890" */
1177 default:
1178 if ( ((length - begin) < 1) ||
1179 ((length - end) < 1) ||
1180 ((begin - end) >= 0)) {
1181 return RANGE_ERR;
1182 }
1183 break;
1184 }
1185 break;
1186 }
1187 }
1188 {
1189 zval *zentry;
1190 MAKE_STD_ZVAL(zentry);
1191 array_init(zentry);
1192 add_index_long(zentry, 0, begin);
1193 add_index_long(zentry, 1, end);
1194 zend_hash_next_index_insert(ranges, &zentry, sizeof(zval *), NULL);
1195
1196 begin = -1;
1197 end = -1;
1198 ptr = &begin;
1199 }
1200 break;
1201
1202 default:
1203 return RANGE_NO;
1204 break;
1205 }
1206 } while (c != 0);
1207
1208 return RANGE_OK;
1209 }
1210 /* }}} */
1211
1212 /* {{{ STATUS http_send_ranges(HashTable *, void *, size_t, http_send_mode) */
1213 PHP_HTTP_API STATUS _http_send_ranges(HashTable *ranges, const void *data, const size_t size, const http_send_mode mode TSRMLS_DC)
1214 {
1215 long **begin, **end;
1216 zval **zrange;
1217
1218 /* single range */
1219 if (zend_hash_num_elements(ranges) == 1) {
1220 char range_header[256] = {0};
1221
1222 if (SUCCESS != zend_hash_index_find(ranges, 0, (void **) &zrange) ||
1223 SUCCESS != zend_hash_index_find(Z_ARRVAL_PP(zrange), 0, (void **) &begin) ||
1224 SUCCESS != zend_hash_index_find(Z_ARRVAL_PP(zrange), 1, (void **) &end)) {
1225 return FAILURE;
1226 }
1227
1228 /* Send HTTP 206 Partial Content */
1229 http_send_status(206);
1230
1231 /* send content range header */
1232 snprintf(range_header, 255, "Content-Range: bytes %d-%d/%d", **begin, **end, size);
1233 http_send_header(range_header);
1234
1235 /* send requested chunk */
1236 return http_send_chunk(data, **begin, **end + 1, mode);
1237 }
1238
1239 /* multi range */
1240 else {
1241 char bound[23] = {0}, preface[1024] = {0},
1242 multi_header[68] = "Content-Type: multipart/byteranges; boundary=";
1243
1244 /* Send HTTP 206 Partial Content */
1245 http_send_status(206);
1246
1247 /* send multipart/byteranges header */
1248 snprintf(bound, 22, "--%d%0.9f", time(NULL), php_combined_lcg(TSRMLS_C));
1249 strncat(multi_header, bound + 2, 21);
1250 http_send_header(multi_header);
1251
1252 /* send each requested chunk */
1253 FOREACH_HASH_VAL(ranges, zrange) {
1254 if (SUCCESS != zend_hash_index_find(Z_ARRVAL_PP(zrange), 0, (void **) &begin) ||
1255 SUCCESS != zend_hash_index_find(Z_ARRVAL_PP(zrange), 1, (void **) &end)) {
1256 break;
1257 }
1258
1259 snprintf(preface, 1023,
1260 HTTP_CRLF "%s"
1261 HTTP_CRLF "Content-Type: %s"
1262 HTTP_CRLF "Content-Range: bytes %ld-%ld/%ld"
1263 HTTP_CRLF
1264 HTTP_CRLF,
1265
1266 bound,
1267 HTTP_G(ctype) ? HTTP_G(ctype) : "application/x-octetstream",
1268 **begin,
1269 **end,
1270 size
1271 );
1272
1273 php_body_write(preface, strlen(preface) TSRMLS_CC);
1274 http_send_chunk(data, **begin, **end + 1, mode);
1275 }
1276
1277 /* write boundary once more */
1278 php_body_write(HTTP_CRLF, sizeof(HTTP_CRLF) - 1 TSRMLS_CC);
1279 php_body_write(bound, strlen(bound) TSRMLS_CC);
1280 php_body_write("--", 2 TSRMLS_CC);
1281
1282 return SUCCESS;
1283 }
1284 }
1285 /* }}} */
1286
1287 /* {{{ STATUS http_send(void *, size_t, http_send_mode) */
1288 PHP_HTTP_API STATUS _http_send(const void *data_ptr, const size_t data_size,
1289 const http_send_mode data_mode TSRMLS_DC)
1290 {
1291 int is_range_request = http_is_range_request();
1292
1293 if (!data_ptr) {
1294 return FAILURE;
1295 }
1296 if (!data_size) {
1297 return SUCCESS;
1298 }
1299
1300 /* etag handling */
1301 if (HTTP_G(etag_started)) {
1302 char *etag;
1303 /* interrupt */
1304 HTTP_G(etag_started) = 0;
1305 /* never ever use the output to compute the ETag if http_send() is used */
1306 php_end_ob_buffer(0, 0 TSRMLS_CC);
1307 if (!(etag = http_etag(data_ptr, data_size, data_mode))) {
1308 return FAILURE;
1309 }
1310
1311 /* send 304 Not Modified if etag matches */
1312 if ((!is_range_request) && http_etag_match("HTTP_IF_NONE_MATCH", etag)) {
1313 efree(etag);
1314 return http_send_status(304);
1315 }
1316
1317 http_send_etag(etag, 32);
1318 efree(etag);
1319 }
1320
1321 /* send 304 Not Modified if last-modified matches*/
1322 if ((!is_range_request) && http_modified_match("HTTP_IF_MODIFIED_SINCE", HTTP_G(lmod))) {
1323 return http_send_status(304);
1324 }
1325
1326 if (is_range_request) {
1327
1328 /* only send ranges if entity hasn't changed */
1329 if (
1330 ((!zend_hash_exists(HTTP_SERVER_VARS, "HTTP_IF_MATCH", 13)) ||
1331 http_etag_match("HTTP_IF_MATCH", HTTP_G(etag)))
1332 &&
1333 ((!zend_hash_exists(HTTP_SERVER_VARS, "HTTP_IF_UNMODIFIED_SINCE", 25)) ||
1334 http_modified_match("HTTP_IF_UNMODIFIED_SINCE", HTTP_G(lmod)))
1335 ) {
1336
1337 STATUS result = FAILURE;
1338 HashTable ranges;
1339 zend_hash_init(&ranges, 0, NULL, ZVAL_PTR_DTOR, 0);
1340
1341 switch (http_get_request_ranges(&ranges, data_size))
1342 {
1343 case RANGE_NO:
1344 zend_hash_destroy(&ranges);
1345 /* go ahead and send all */
1346 break;
1347
1348 case RANGE_OK:
1349 result = http_send_ranges(&ranges, data_ptr, data_size, data_mode);
1350 zend_hash_destroy(&ranges);
1351 return result;
1352 break;
1353
1354 case RANGE_ERR:
1355 zend_hash_destroy(&ranges);
1356 http_send_status(416);
1357 return FAILURE;
1358 break;
1359
1360 default:
1361 return FAILURE;
1362 break;
1363 }
1364 }
1365 }
1366 /* send all */
1367 return http_send_chunk(data_ptr, 0, data_size, data_mode);
1368 }
1369 /* }}} */
1370
1371 /* {{{ STATUS http_send_stream(php_stream *) */
1372 PHP_HTTP_API STATUS _http_send_stream_ex(php_stream *file,
1373 zend_bool close_stream TSRMLS_DC)
1374 {
1375 STATUS status;
1376
1377 if ((!file) || php_stream_stat(file, &HTTP_G(ssb))) {
1378 return FAILURE;
1379 }
1380
1381 status = http_send(file, HTTP_G(ssb).sb.st_size, SEND_RSRC);
1382
1383 if (close_stream) {
1384 php_stream_close(file);
1385 }
1386
1387 return status;
1388 }
1389 /* }}} */
1390
1391 /* {{{ STATUS http_chunked_decode(char *, size_t, char **, size_t *) */
1392 PHP_HTTP_API STATUS _http_chunked_decode(const char *encoded,
1393 const size_t encoded_len, char **decoded, size_t *decoded_len TSRMLS_DC)
1394 {
1395 const char *e_ptr;
1396 char *d_ptr;
1397
1398 *decoded_len = 0;
1399 *decoded = ecalloc(1, encoded_len);
1400 d_ptr = *decoded;
1401 e_ptr = encoded;
1402
1403 while (((e_ptr - encoded) - encoded_len) > 0) {
1404 char hex_len[9] = {0};
1405 size_t chunk_len = 0;
1406 int i = 0;
1407
1408 /* read in chunk size */
1409 while (isxdigit(*e_ptr)) {
1410 if (i == 9) {
1411 php_error_docref(NULL TSRMLS_CC, E_WARNING,
1412 "Chunk size is too long: 0x%s...", hex_len);
1413 efree(*decoded);
1414 return FAILURE;
1415 }
1416 hex_len[i++] = *e_ptr++;
1417 }
1418
1419 /* reached the end */
1420 if (!strcmp(hex_len, "0")) {
1421 break;
1422 }
1423
1424 /* new line */
1425 if (strncmp(e_ptr, HTTP_CRLF, 2)) {
1426 php_error_docref(NULL TSRMLS_CC, E_WARNING,
1427 "Invalid character (expected 0x0D 0x0A; got: %x %x)",
1428 *e_ptr, *(e_ptr + 1));
1429 efree(*decoded);
1430 return FAILURE;
1431 }
1432
1433 /* hex to long */
1434 {
1435 char *error = NULL;
1436 chunk_len = strtol(hex_len, &error, 16);
1437 if (error == hex_len) {
1438 php_error_docref(NULL TSRMLS_CC, E_WARNING,
1439 "Invalid chunk size string: '%s'", hex_len);
1440 efree(*decoded);
1441 return FAILURE;
1442 }
1443 }
1444
1445 memcpy(d_ptr, e_ptr += 2, chunk_len);
1446 d_ptr += chunk_len;
1447 e_ptr += chunk_len + 2;
1448 *decoded_len += chunk_len;
1449 }
1450
1451 return SUCCESS;
1452 }
1453 /* }}} */
1454
1455 /* {{{ STATUS http_split_response(zval *, zval *, zval *) */
1456 PHP_HTTP_API STATUS _http_split_response(zval *response, zval *headers, zval *body TSRMLS_DC)
1457 {
1458 char *b = NULL;
1459 long l = 0;
1460 STATUS status = http_split_response_ex(Z_STRVAL_P(response), Z_STRLEN_P(response), Z_ARRVAL_P(headers), &b, &l);
1461 ZVAL_STRINGL(body, b, l, 0);
1462 return status;
1463 }
1464 /* }}} */
1465
1466 /* {{{ STATUS http_split_response(char *, size_t, HashTable *, char **, size_t *) */
1467 PHP_HTTP_API STATUS _http_split_response_ex(char *response,
1468 size_t response_len, HashTable *headers, char **body, size_t *body_len TSRMLS_DC)
1469 {
1470 char *header = response, *real_body = NULL;
1471
1472 while (0 < (response_len - (response - header + 4))) {
1473 if ( (*response++ == '\r') &&
1474 (*response++ == '\n') &&
1475 (*response++ == '\r') &&
1476 (*response++ == '\n')) {
1477 real_body = response;
1478 break;
1479 }
1480 }
1481
1482 if (real_body && (*body_len = (response_len - (real_body - header)))) {
1483 *body = ecalloc(1, *body_len + 1);
1484 memcpy(*body, real_body, *body_len);
1485 }
1486
1487 return http_parse_headers_ex(header, real_body ? response_len - *body_len : response_len, headers, 1);
1488 }
1489 /* }}} */
1490
1491 /* {{{ STATUS http_parse_headers(char *, long, zval *) */
1492 PHP_HTTP_API STATUS _http_parse_headers_ex(char *header, int header_len,
1493 HashTable *headers, zend_bool prettify TSRMLS_DC)
1494 {
1495 char *colon = NULL, *line = NULL, *begin = header;
1496 zval array;
1497
1498 Z_ARRVAL(array) = headers;
1499
1500 if (header_len < 2) {
1501 return FAILURE;
1502 }
1503
1504 /* status code */
1505 if (!strncmp(header, "HTTP/1.", 7)) {
1506 char *end = strstr(header, HTTP_CRLF);
1507 add_assoc_stringl(&array, "Status",
1508 header + sizeof("HTTP/1.x ") - 1,
1509 end - (header + sizeof("HTTP/1.x ") - 1), 1);
1510 header = end + 2;
1511 }
1512
1513 line = header;
1514
1515 while (header_len >= (line - begin)) {
1516 int value_len = 0;
1517
1518 switch (*line++)
1519 {
1520 case 0:
1521 --value_len; /* we don't have CR so value length is one char less */
1522 case '\n':
1523 if (colon && ((!(*line - 1)) || ((*line != ' ') && (*line != '\t')))) {
1524
1525 /* skip empty key */
1526 if (header != colon) {
1527 char *key = estrndup(header, colon - header);
1528
1529 if (prettify) {
1530 key = pretty_key(key, colon - header, 1, 1);
1531 }
1532
1533 value_len += line - colon - 1;
1534
1535 /* skip leading ws */
1536 while (isspace(*(++colon))) --value_len;
1537 /* skip trailing ws */
1538 while (isspace(colon[value_len - 1])) --value_len;
1539
1540 if (value_len < 1) {
1541 /* hm, empty header? */
1542 add_assoc_stringl(&array, key, "", 0, 1);
1543 } else {
1544 add_assoc_stringl(&array, key, colon, value_len, 1);
1545 }
1546 efree(key);
1547 }
1548
1549 colon = NULL;
1550 value_len = 0;
1551 header += line - header;
1552 }
1553 break;
1554
1555 case ':':
1556 if (!colon) {
1557 colon = line - 1;
1558 }
1559 break;
1560 }
1561 }
1562 return SUCCESS;
1563 }
1564 /* }}} */
1565
1566 /* {{{ void http_get_request_headers_ex(HashTable *, zend_bool) */
1567 PHP_HTTP_API void _http_get_request_headers_ex(HashTable *headers, zend_bool prettify TSRMLS_DC)
1568 {
1569 char *key = NULL;
1570 long idx = 0;
1571 zval array;
1572
1573 Z_ARRVAL(array) = headers;
1574
1575 FOREACH_HASH_KEY(HTTP_SERVER_VARS, key, idx) {
1576 if (key && !strncmp(key, "HTTP_", 5)) {
1577 zval **header;
1578
1579 if (prettify) {
1580 key = pretty_key(key + 5, strlen(key) - 5, 1, 1);
1581 }
1582
1583 zend_hash_get_current_data(HTTP_SERVER_VARS, (void **) &header);
1584 add_assoc_stringl(&array, key, Z_STRVAL_PP(header), Z_STRLEN_PP(header), 1);
1585 key = NULL;
1586 }
1587 }
1588 }
1589 /* }}} */
1590
1591 /* {{{ STATUS http_urlencode_hash_ex(HashTable *, int, char **, size_t *) */
1592 PHP_HTTP_API STATUS _http_urlencode_hash_ex(HashTable *hash, int override_argsep,
1593 char *pre_encoded_data, size_t pre_encoded_len,
1594 char **encoded_data, size_t *encoded_len TSRMLS_DC)
1595 {
1596 smart_str qstr = {0};
1597
1598 if (override_argsep) {
1599 HTTP_URL_ARGSEP_OVERRIDE;
1600 }
1601
1602 if (pre_encoded_len && pre_encoded_data) {
1603 smart_str_appendl(&qstr, pre_encoded_data, pre_encoded_len);
1604 }
1605
1606 if (SUCCESS != php_url_encode_hash_ex(hash, &qstr, NULL, 0, NULL, 0, NULL, 0, NULL TSRMLS_CC)) {
1607 php_error_docref(NULL TSRMLS_CC, E_WARNING, "Couldn't encode query data");
1608 if (qstr.c) {
1609 efree(qstr.c);
1610 }
1611 if (override_argsep) {
1612 HTTP_URL_ARGSEP_RESTORE;
1613 }
1614 return FAILURE;
1615 }
1616
1617 if (override_argsep) {
1618 HTTP_URL_ARGSEP_RESTORE;
1619 }
1620
1621 smart_str_0(&qstr);
1622
1623 *encoded_data = qstr.c;
1624 if (encoded_len) {
1625 *encoded_len = qstr.len;
1626 }
1627
1628 return SUCCESS;
1629 }
1630 /* }}} */
1631
1632 /* {{{ STATUS http_auth_header(char *, char*) */
1633 PHP_HTTP_API STATUS _http_auth_header(const char *type, const char *realm TSRMLS_DC)
1634 {
1635 char realm_header[1024] = {0};
1636 snprintf(realm_header, 1023, "WWW-Authenticate: %s realm=\"%s\"", type, realm);
1637 return http_send_status_header(401, realm_header);
1638 }
1639 /* }}} */
1640
1641 /* {{{ STATUS http_auth_credentials(char **, char **) */
1642 PHP_HTTP_API STATUS _http_auth_credentials(char **user, char **pass TSRMLS_DC)
1643 {
1644 if (strncmp(sapi_module.name, "isapi", 5)) {
1645 zval *zuser, *zpass;
1646
1647 HTTP_GSC(zuser, "PHP_AUTH_USER", FAILURE);
1648 HTTP_GSC(zpass, "PHP_AUTH_PW", FAILURE);
1649
1650 *user = estrndup(Z_STRVAL_P(zuser), Z_STRLEN_P(zuser));
1651 *pass = estrndup(Z_STRVAL_P(zpass), Z_STRLEN_P(zpass));
1652
1653 return SUCCESS;
1654 } else {
1655 zval *zauth = NULL;
1656 HTTP_GSC(zauth, "HTTP_AUTHORIZATION", FAILURE);
1657 {
1658 char *decoded, *colon;
1659 int decoded_len;
1660 decoded = php_base64_decode(Z_STRVAL_P(zauth), Z_STRLEN_P(zauth),
1661 &decoded_len);
1662
1663 if (colon = strchr(decoded + 6, ':')) {
1664 *user = estrndup(decoded + 6, colon - decoded - 6);
1665 *pass = estrndup(colon + 1, decoded + decoded_len - colon - 6 - 1);
1666
1667 return SUCCESS;
1668 } else {
1669 return FAILURE;
1670 }
1671 }
1672 }
1673 }
1674 /* }}} */
1675
1676 #ifndef ZEND_ENGINE_2
1677 /* {{{ php_url_encode_hash
1678 Author: Sara Golemon <pollita@php.net> */
1679 PHP_HTTP_API STATUS php_url_encode_hash_ex(HashTable *ht, smart_str *formstr,
1680 const char *num_prefix, int num_prefix_len,
1681 const char *key_prefix, int key_prefix_len,
1682 const char *key_suffix, int key_suffix_len,
1683 zval *type TSRMLS_DC)
1684 {
1685 char *arg_sep = NULL, *key = NULL, *ekey, *newprefix, *p;
1686 int arg_sep_len, key_len, ekey_len, key_type, newprefix_len;
1687 ulong idx;
1688 zval **zdata = NULL, *copyzval;
1689
1690 if (!ht) {
1691 return FAILURE;
1692 }
1693
1694 if (ht->nApplyCount > 0) {
1695 /* Prevent recursion */
1696 return SUCCESS;
1697 }
1698
1699 arg_sep = INI_STR("arg_separator.output");
1700 if (!arg_sep || !strlen(arg_sep)) {
1701 arg_sep = HTTP_URL_ARGSEP_DEFAULT;
1702 }
1703 arg_sep_len = strlen(arg_sep);
1704
1705 for (zend_hash_internal_pointer_reset(ht);
1706 (key_type = zend_hash_get_current_key_ex(ht, &key, &key_len, &idx, 0, NULL)) != HASH_KEY_NON_EXISTANT;
1707 zend_hash_move_forward(ht)
1708 ) {
1709 if (key_type == HASH_KEY_IS_STRING && key_len && key[key_len-1] == '\0') {
1710 /* We don't want that trailing NULL */
1711 key_len -= 1;
1712 }
1713
1714 #ifdef ZEND_ENGINE_2
1715 /* handling for private & protected object properties */
1716 if (key && *key == '\0' && type != NULL) {
1717 char *tmp;
1718
1719 zend_object *zobj = zend_objects_get_address(type TSRMLS_CC);
1720 if (zend_check_property_access(zobj, key TSRMLS_CC) != SUCCESS) {
1721 /* private or protected property access outside of the class */
1722 continue;
1723 }
1724 zend_unmangle_property_name(key, &tmp, &key);
1725 key_len = strlen(key);
1726 }
1727 #endif
1728
1729 if (zend_hash_get_current_data_ex(ht, (void **)&zdata, NULL) == FAILURE || !zdata || !(*zdata)) {
1730 php_error_docref(NULL TSRMLS_CC, E_WARNING, "Error traversing form data array.");
1731 return FAILURE;
1732 }
1733 if (Z_TYPE_PP(zdata) == IS_ARRAY || Z_TYPE_PP(zdata) == IS_OBJECT) {
1734 if (key_type == HASH_KEY_IS_STRING) {
1735 ekey = php_url_encode(key, key_len, &ekey_len);
1736 newprefix_len = key_suffix_len + ekey_len + key_prefix_len + 1;
1737 newprefix = emalloc(newprefix_len + 1);
1738 p = newprefix;
1739
1740 if (key_prefix) {
1741 memcpy(p, key_prefix, key_prefix_len);
1742 p += key_prefix_len;
1743 }
1744
1745 memcpy(p, ekey, ekey_len);
1746 p += ekey_len;
1747 efree(ekey);
1748
1749 if (key_suffix) {
1750 memcpy(p, key_suffix, key_suffix_len);
1751 p += key_suffix_len;
1752 }
1753
1754 *(p++) = '[';
1755 *p = '\0';
1756 } else {
1757 /* Is an integer key */
1758 ekey_len = spprintf(&ekey, 12, "%ld", idx);
1759 newprefix_len = key_prefix_len + num_prefix_len + ekey_len + key_suffix_len + 1;
1760 newprefix = emalloc(newprefix_len + 1);
1761 p = newprefix;
1762
1763 if (key_prefix) {
1764 memcpy(p, key_prefix, key_prefix_len);
1765 p += key_prefix_len;
1766 }
1767
1768 memcpy(p, num_prefix, num_prefix_len);
1769 p += num_prefix_len;
1770
1771 memcpy(p, ekey, ekey_len);
1772 p += ekey_len;
1773 efree(ekey);
1774
1775 if (key_suffix) {
1776 memcpy(p, key_suffix, key_suffix_len);
1777 p += key_suffix_len;
1778 }
1779 *(p++) = '[';
1780 *p = '\0';
1781 }
1782 ht->nApplyCount++;
1783 php_url_encode_hash_ex(HASH_OF(*zdata), formstr, NULL, 0, newprefix, newprefix_len, "]", 1, (Z_TYPE_PP(zdata) == IS_OBJECT ? *zdata : NULL) TSRMLS_CC);
1784 ht->nApplyCount--;
1785 efree(newprefix);
1786 } else if (Z_TYPE_PP(zdata) == IS_NULL || Z_TYPE_PP(zdata) == IS_RESOURCE) {
1787 /* Skip these types */
1788 continue;
1789 } else {
1790 if (formstr->len) {
1791 smart_str_appendl(formstr, arg_sep, arg_sep_len);
1792 }
1793 /* Simple key=value */
1794 smart_str_appendl(formstr, key_prefix, key_prefix_len);
1795 if (key_type == HASH_KEY_IS_STRING) {
1796 ekey = php_url_encode(key, key_len, &ekey_len);
1797 smart_str_appendl(formstr, ekey, ekey_len);
1798 efree(ekey);
1799 } else {
1800 /* Numeric key */
1801 if (num_prefix) {
1802 smart_str_appendl(formstr, num_prefix, num_prefix_len);
1803 }
1804 ekey_len = spprintf(&ekey, 12, "%ld", idx);
1805 smart_str_appendl(formstr, ekey, ekey_len);
1806 efree(ekey);
1807 }
1808 smart_str_appendl(formstr, key_suffix, key_suffix_len);
1809 smart_str_appendl(formstr, "=", 1);
1810 switch (Z_TYPE_PP(zdata)) {
1811 case IS_STRING:
1812 ekey = php_url_encode(Z_STRVAL_PP(zdata), Z_STRLEN_PP(zdata), &ekey_len);
1813 break;
1814 case IS_LONG:
1815 case IS_BOOL:
1816 ekey_len = spprintf(&ekey, 12, "%ld", Z_LVAL_PP(zdata));
1817 break;
1818 case IS_DOUBLE:
1819 ekey_len = spprintf(&ekey, 48, "%.*G", (int) EG(precision), Z_DVAL_PP(zdata));
1820 break;
1821 default:
1822 /* fall back on convert to string */
1823 MAKE_STD_ZVAL(copyzval);
1824 *copyzval = **zdata;
1825 zval_copy_ctor(copyzval);
1826 convert_to_string_ex(&copyzval);
1827 ekey = php_url_encode(Z_STRVAL_P(copyzval), Z_STRLEN_P(copyzval), &ekey_len);
1828 zval_ptr_dtor(&copyzval);
1829 }
1830 smart_str_appendl(formstr, ekey, ekey_len);
1831 efree(ekey);
1832 }
1833 }
1834
1835 return SUCCESS;
1836 }
1837 /* }}} */
1838 #endif /* !ZEND_ENDGINE_2 */
1839
1840 /* }}} public API */
1841
1842 /*
1843 * Local variables:
1844 * tab-width: 4
1845 * c-basic-offset: 4
1846 * End:
1847 * vim600: noet sw=4 ts=4 fdm=marker
1848 * vim<600: noet sw=4 ts=4
1849 */
1850
Extended HTTP Support