2 * Copyright 2001-2022 The OpenSSL Project Authors. All Rights Reserved.
3 * Copyright Siemens AG 2018-2020
5 * Licensed under the Apache License 2.0 (the "License"). You may not use
6 * this file except in compliance with the License. You can obtain a copy
7 * in the file LICENSE in the source distribution or at
8 * https://www.openssl.org/source/license.html
11 #include "internal/e_os.h"
14 #include "crypto/ctype.h"
16 #include <openssl/asn1.h>
17 #include <openssl/evp.h>
18 #include <openssl/err.h>
19 #include <openssl/httperr.h>
20 #include <openssl/cmperr.h>
21 #include <openssl/buffer.h>
22 #include <openssl/http.h>
23 #include <openssl/trace.h>
24 #include "internal/sockets.h"
25 #include "internal/common.h" /* for ossl_assert() */
27 #define HTTP_PREFIX "HTTP/"
28 #define HTTP_VERSION_PATT "1." /* allow 1.x */
29 #define HTTP_VERSION_STR_LEN sizeof(HTTP_VERSION_PATT) /* == strlen("1.0") */
30 #define HTTP_PREFIX_VERSION HTTP_PREFIX""HTTP_VERSION_PATT
31 #define HTTP_1_0 HTTP_PREFIX_VERSION"0" /* "HTTP/1.0" */
32 #define HTTP_LINE1_MINLEN (sizeof(HTTP_PREFIX_VERSION "x 200\n") - 1)
33 #define HTTP_VERSION_MAX_REDIRECTIONS 50
35 #define HTTP_STATUS_CODE_OK 200
36 #define HTTP_STATUS_CODE_MOVED_PERMANENTLY 301
37 #define HTTP_STATUS_CODE_FOUND 302
39 /* Stateful HTTP request code, supporting blocking and non-blocking I/O */
41 /* Opaque HTTP request status structure */
43 struct ossl_http_req_ctx_st
{
44 int state
; /* Current I/O state */
45 unsigned char *buf
; /* Buffer to write request or read response */
46 int buf_size
; /* Buffer size */
47 int free_wbio
; /* wbio allocated internally, free with ctx */
48 BIO
*wbio
; /* BIO to write/send request to */
49 BIO
*rbio
; /* BIO to read/receive response from */
50 OSSL_HTTP_bio_cb_t upd_fn
; /* Optional BIO update callback used for TLS */
51 void *upd_arg
; /* Optional arg for update callback function */
52 int use_ssl
; /* Use HTTPS */
53 char *proxy
; /* Optional proxy name or URI */
54 char *server
; /* Optional server host name */
55 char *port
; /* Optional server port */
56 BIO
*mem
; /* Memory BIO holding request/response header */
57 BIO
*req
; /* BIO holding the request provided by caller */
58 int method_POST
; /* HTTP method is POST (else GET) */
59 char *expected_ct
; /* Optional expected Content-Type */
60 int expect_asn1
; /* Response must be ASN.1-encoded */
61 unsigned char *pos
; /* Current position sending data */
62 long len_to_send
; /* Number of bytes still to send */
63 size_t resp_len
; /* Length of response */
64 size_t max_resp_len
; /* Maximum length of response, or 0 */
65 int keep_alive
; /* Persistent conn. 0=no, 1=prefer, 2=require */
66 time_t max_time
; /* Maximum end time of current transfer, or 0 */
67 time_t max_total_time
; /* Maximum end time of total transfer, or 0 */
68 char *redirection_url
; /* Location obtained from HTTP status 301/302 */
73 #define OHS_NOREAD 0x1000 /* If set no reading should be performed */
74 #define OHS_ERROR (0 | OHS_NOREAD) /* Error condition */
75 #define OHS_ADD_HEADERS (1 | OHS_NOREAD) /* Adding header lines to request */
76 #define OHS_WRITE_INIT (2 | OHS_NOREAD) /* 1st call: ready to start send */
77 #define OHS_WRITE_HDR (3 | OHS_NOREAD) /* Request header being sent */
78 #define OHS_WRITE_REQ (4 | OHS_NOREAD) /* Request contents being sent */
79 #define OHS_FLUSH (5 | OHS_NOREAD) /* Request being flushed */
80 #define OHS_FIRSTLINE 1 /* First line of response being read */
81 #define OHS_HEADERS 2 /* MIME headers of response being read */
82 #define OHS_REDIRECT 3 /* MIME headers being read, expecting Location */
83 #define OHS_ASN1_HEADER 4 /* ASN1 sequence header (tag+length) being read */
84 #define OHS_ASN1_CONTENT 5 /* ASN1 content octets being read */
85 #define OHS_ASN1_DONE (6 | OHS_NOREAD) /* ASN1 content read completed */
86 #define OHS_STREAM (7 | OHS_NOREAD) /* HTTP content stream to be read */
88 /* Low-level HTTP API implementation */
90 OSSL_HTTP_REQ_CTX
*OSSL_HTTP_REQ_CTX_new(BIO
*wbio
, BIO
*rbio
, int buf_size
)
92 OSSL_HTTP_REQ_CTX
*rctx
;
94 if (wbio
== NULL
|| rbio
== NULL
) {
95 ERR_raise(ERR_LIB_HTTP
, ERR_R_PASSED_NULL_PARAMETER
);
99 if ((rctx
= OPENSSL_zalloc(sizeof(*rctx
))) == NULL
)
101 rctx
->state
= OHS_ERROR
;
102 rctx
->buf_size
= buf_size
> 0 ? buf_size
: OSSL_HTTP_DEFAULT_MAX_LINE_LEN
;
103 rctx
->buf
= OPENSSL_malloc(rctx
->buf_size
);
106 if (rctx
->buf
== NULL
) {
110 rctx
->max_resp_len
= OSSL_HTTP_DEFAULT_MAX_RESP_LEN
;
111 /* everything else is 0, e.g. rctx->len_to_send, or NULL, e.g. rctx->mem */
115 void OSSL_HTTP_REQ_CTX_free(OSSL_HTTP_REQ_CTX
*rctx
)
120 * Use BIO_free_all() because bio_update_fn may prepend or append to cbio.
121 * This also frees any (e.g., SSL/TLS) BIOs linked with bio and,
122 * like BIO_reset(bio), calls SSL_shutdown() to notify/alert the peer.
125 BIO_free_all(rctx
->wbio
);
126 /* do not free rctx->rbio */
129 OPENSSL_free(rctx
->buf
);
130 OPENSSL_free(rctx
->proxy
);
131 OPENSSL_free(rctx
->server
);
132 OPENSSL_free(rctx
->port
);
133 OPENSSL_free(rctx
->expected_ct
);
137 BIO
*OSSL_HTTP_REQ_CTX_get0_mem_bio(const OSSL_HTTP_REQ_CTX
*rctx
)
140 ERR_raise(ERR_LIB_HTTP
, ERR_R_PASSED_NULL_PARAMETER
);
146 size_t OSSL_HTTP_REQ_CTX_get_resp_len(const OSSL_HTTP_REQ_CTX
*rctx
)
149 ERR_raise(ERR_LIB_HTTP
, ERR_R_PASSED_NULL_PARAMETER
);
152 return rctx
->resp_len
;
155 void OSSL_HTTP_REQ_CTX_set_max_response_length(OSSL_HTTP_REQ_CTX
*rctx
,
159 ERR_raise(ERR_LIB_HTTP
, ERR_R_PASSED_NULL_PARAMETER
);
162 rctx
->max_resp_len
= len
!= 0 ? (size_t)len
: OSSL_HTTP_DEFAULT_MAX_RESP_LEN
;
166 * Create request line using |rctx| and |path| (or "/" in case |path| is NULL).
167 * Server name (and port) must be given if and only if plain HTTP proxy is used.
169 int OSSL_HTTP_REQ_CTX_set_request_line(OSSL_HTTP_REQ_CTX
*rctx
, int method_POST
,
170 const char *server
, const char *port
,
174 ERR_raise(ERR_LIB_HTTP
, ERR_R_PASSED_NULL_PARAMETER
);
178 if ((rctx
->mem
= BIO_new(BIO_s_mem())) == NULL
)
181 rctx
->method_POST
= method_POST
!= 0;
182 if (BIO_printf(rctx
->mem
, "%s ", rctx
->method_POST
? "POST" : "GET") <= 0)
185 if (server
!= NULL
) { /* HTTP (but not HTTPS) proxy is used */
187 * Section 5.1.2 of RFC 1945 states that the absoluteURI form is only
188 * allowed when using a proxy
190 if (BIO_printf(rctx
->mem
, OSSL_HTTP_PREFIX
"%s", server
) <= 0)
192 if (port
!= NULL
&& BIO_printf(rctx
->mem
, ":%s", port
) <= 0)
196 /* Make sure path includes a forward slash */
199 if (path
[0] != '/' && BIO_printf(rctx
->mem
, "/") <= 0)
202 * Add (the rest of) the path and the HTTP version,
203 * which is fixed to 1.0 for straightforward implementation of keep-alive
205 if (BIO_printf(rctx
->mem
, "%s "HTTP_1_0
"\r\n", path
) <= 0)
209 rctx
->state
= OHS_ADD_HEADERS
;
213 int OSSL_HTTP_REQ_CTX_add1_header(OSSL_HTTP_REQ_CTX
*rctx
,
214 const char *name
, const char *value
)
216 if (rctx
== NULL
|| name
== NULL
) {
217 ERR_raise(ERR_LIB_HTTP
, ERR_R_PASSED_NULL_PARAMETER
);
220 if (rctx
->mem
== NULL
) {
221 ERR_raise(ERR_LIB_HTTP
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
225 if (BIO_puts(rctx
->mem
, name
) <= 0)
228 if (BIO_write(rctx
->mem
, ": ", 2) != 2)
230 if (BIO_puts(rctx
->mem
, value
) <= 0)
233 return BIO_write(rctx
->mem
, "\r\n", 2) == 2;
236 int OSSL_HTTP_REQ_CTX_set_expected(OSSL_HTTP_REQ_CTX
*rctx
,
237 const char *content_type
, int asn1
,
238 int timeout
, int keep_alive
)
241 ERR_raise(ERR_LIB_HTTP
, ERR_R_PASSED_NULL_PARAMETER
);
245 && rctx
->state
!= OHS_ERROR
&& rctx
->state
!= OHS_ADD_HEADERS
) {
246 /* Cannot anymore set keep-alive in request header */
247 ERR_raise(ERR_LIB_HTTP
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
251 OPENSSL_free(rctx
->expected_ct
);
252 rctx
->expected_ct
= NULL
;
253 if (content_type
!= NULL
254 && (rctx
->expected_ct
= OPENSSL_strdup(content_type
)) == NULL
)
257 rctx
->expect_asn1
= asn1
;
259 rctx
->max_time
= timeout
> 0 ? time(NULL
) + timeout
: 0;
260 else /* take over any |overall_timeout| arg of OSSL_HTTP_open(), else 0 */
261 rctx
->max_time
= rctx
->max_total_time
;
262 rctx
->keep_alive
= keep_alive
;
266 static int set1_content(OSSL_HTTP_REQ_CTX
*rctx
,
267 const char *content_type
, BIO
*req
)
271 if (rctx
== NULL
|| (req
== NULL
&& content_type
!= NULL
)) {
272 ERR_raise(ERR_LIB_HTTP
, ERR_R_PASSED_NULL_PARAMETER
);
276 if (rctx
->keep_alive
!= 0
277 && !OSSL_HTTP_REQ_CTX_add1_header(rctx
, "Connection", "keep-alive"))
284 if (!rctx
->method_POST
) {
285 ERR_raise(ERR_LIB_HTTP
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
289 if (content_type
!= NULL
290 && BIO_printf(rctx
->mem
, "Content-Type: %s\r\n", content_type
) <= 0)
293 /* streaming BIO may not support querying size */
294 if (((req_len
= BIO_ctrl(req
, BIO_CTRL_INFO
, 0, NULL
)) <= 0
295 || BIO_printf(rctx
->mem
, "Content-Length: %ld\r\n", req_len
) > 0)
296 && BIO_up_ref(req
)) {
303 int OSSL_HTTP_REQ_CTX_set1_req(OSSL_HTTP_REQ_CTX
*rctx
, const char *content_type
,
304 const ASN1_ITEM
*it
, const ASN1_VALUE
*req
)
310 res
= (mem
= ASN1_item_i2d_mem_bio(it
, req
)) != NULL
;
311 res
= res
&& set1_content(rctx
, content_type
, mem
);
316 static int add1_headers(OSSL_HTTP_REQ_CTX
*rctx
,
317 const STACK_OF(CONF_VALUE
) *headers
, const char *host
)
320 int add_host
= host
!= NULL
&& *host
!= '\0';
323 for (i
= 0; i
< sk_CONF_VALUE_num(headers
); i
++) {
324 hdr
= sk_CONF_VALUE_value(headers
, i
);
325 if (add_host
&& OPENSSL_strcasecmp("host", hdr
->name
) == 0)
327 if (!OSSL_HTTP_REQ_CTX_add1_header(rctx
, hdr
->name
, hdr
->value
))
331 if (add_host
&& !OSSL_HTTP_REQ_CTX_add1_header(rctx
, "Host", host
))
336 /* Create OSSL_HTTP_REQ_CTX structure using the values provided. */
337 static OSSL_HTTP_REQ_CTX
*http_req_ctx_new(int free_wbio
, BIO
*wbio
, BIO
*rbio
,
338 OSSL_HTTP_bio_cb_t bio_update_fn
,
339 void *arg
, int use_ssl
,
341 const char *server
, const char *port
,
342 int buf_size
, int overall_timeout
)
344 OSSL_HTTP_REQ_CTX
*rctx
= OSSL_HTTP_REQ_CTX_new(wbio
, rbio
, buf_size
);
348 rctx
->free_wbio
= free_wbio
;
349 rctx
->upd_fn
= bio_update_fn
;
351 rctx
->use_ssl
= use_ssl
;
353 && (rctx
->proxy
= OPENSSL_strdup(proxy
)) == NULL
)
356 && (rctx
->server
= OPENSSL_strdup(server
)) == NULL
)
359 && (rctx
->port
= OPENSSL_strdup(port
)) == NULL
)
361 rctx
->max_total_time
=
362 overall_timeout
> 0 ? time(NULL
) + overall_timeout
: 0;
366 OSSL_HTTP_REQ_CTX_free(rctx
);
371 * Parse first HTTP response line. This should be like this: "HTTP/1.0 200 OK".
372 * We need to obtain the status code and (optional) informational message.
373 * Return any received HTTP response status code, or 0 on fatal error.
376 static int parse_http_line1(char *line
, int *found_keep_alive
)
379 char *code
, *reason
, *end
;
381 if (!CHECK_AND_SKIP_PREFIX(line
, HTTP_PREFIX_VERSION
))
383 /* above HTTP 1.0, connection persistence is the default */
384 *found_keep_alive
= *line
> '0';
386 /* Skip to first whitespace (past protocol info) */
387 for (code
= line
; *code
!= '\0' && !ossl_isspace(*code
); code
++)
392 /* Skip past whitespace to start of response code */
393 while (*code
!= '\0' && ossl_isspace(*code
))
398 /* Find end of response code: first whitespace after start of code */
399 for (reason
= code
; *reason
!= '\0' && !ossl_isspace(*reason
); reason
++)
405 /* Set end of response code and start of message */
408 /* Attempt to parse numeric code */
409 retcode
= strtoul(code
, &end
, 10);
413 /* Skip over any leading whitespace in message */
414 while (*reason
!= '\0' && ossl_isspace(*reason
))
417 if (*reason
!= '\0') {
419 * Finally zap any trailing whitespace in message (include CRLF)
422 /* chop any trailing whitespace from reason */
423 /* We know reason has a non-whitespace character so this is OK */
424 for (end
= reason
+ strlen(reason
) - 1; ossl_isspace(*end
); end
--)
429 case HTTP_STATUS_CODE_OK
:
430 case HTTP_STATUS_CODE_MOVED_PERMANENTLY
:
431 case HTTP_STATUS_CODE_FOUND
:
434 err
= HTTP_R_RECEIVED_ERROR
;
436 err
= HTTP_R_STATUS_CODE_UNSUPPORTED
;
438 ERR_raise_data(ERR_LIB_HTTP
, err
, "code=%s", code
);
440 ERR_raise_data(ERR_LIB_HTTP
, err
, "code=%s, reason=%s", code
,
446 for (i
= 0; i
< 60 && line
[i
] != '\0'; i
++)
447 if (!ossl_isprint(line
[i
]))
450 ERR_raise_data(ERR_LIB_HTTP
, HTTP_R_HEADER_PARSE_ERROR
, "content=%s", line
);
454 static int check_set_resp_len(OSSL_HTTP_REQ_CTX
*rctx
, size_t len
)
456 if (rctx
->max_resp_len
!= 0 && len
> rctx
->max_resp_len
)
457 ERR_raise_data(ERR_LIB_HTTP
, HTTP_R_MAX_RESP_LEN_EXCEEDED
,
458 "length=%zu, max=%zu", len
, rctx
->max_resp_len
);
459 if (rctx
->resp_len
!= 0 && rctx
->resp_len
!= len
)
460 ERR_raise_data(ERR_LIB_HTTP
, HTTP_R_INCONSISTENT_CONTENT_LENGTH
,
461 "ASN.1 length=%zu, Content-Length=%zu",
462 len
, rctx
->resp_len
);
463 rctx
->resp_len
= len
;
467 static int may_still_retry(time_t max_time
, int *ptimeout
)
469 time_t time_diff
, now
= time(NULL
);
472 if (max_time
< now
) {
473 ERR_raise(ERR_LIB_HTTP
, HTTP_R_RETRY_TIMEOUT
);
476 time_diff
= max_time
- now
;
477 *ptimeout
= time_diff
> INT_MAX
? INT_MAX
: (int)time_diff
;
483 * Try exchanging request and response via HTTP on (non-)blocking BIO in rctx.
484 * Returns 1 on success, 0 on error or redirection, -1 on BIO_should_retry.
486 int OSSL_HTTP_REQ_CTX_nbio(OSSL_HTTP_REQ_CTX
*rctx
)
488 int i
, found_expected_ct
= 0, found_keep_alive
= 0;
489 int found_text_ct
= 0;
492 const unsigned char *p
;
493 char *buf
, *key
, *value
, *line_end
= NULL
;
496 ERR_raise(ERR_LIB_HTTP
, ERR_R_PASSED_NULL_PARAMETER
);
499 if (rctx
->mem
== NULL
|| rctx
->wbio
== NULL
|| rctx
->rbio
== NULL
) {
500 ERR_raise(ERR_LIB_HTTP
, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED
);
504 rctx
->redirection_url
= NULL
;
506 buf
= (char *)rctx
->buf
;
507 if ((rctx
->state
& OHS_NOREAD
) == 0) {
508 if (rctx
->expect_asn1
) {
509 n
= BIO_read(rctx
->rbio
, rctx
->buf
, rctx
->buf_size
);
511 (void)ERR_set_mark();
512 n
= BIO_gets(rctx
->rbio
, buf
, rctx
->buf_size
);
513 if (n
== -2) { /* some BIOs, such as SSL, do not support "gets" */
514 (void)ERR_pop_to_mark();
515 n
= BIO_get_line(rctx
->rbio
, buf
, rctx
->buf_size
);
517 (void)ERR_clear_last_mark();
521 if (BIO_should_retry(rctx
->rbio
))
523 ERR_raise(ERR_LIB_HTTP
, HTTP_R_FAILED_READING_DATA
);
527 /* Write data to memory BIO */
528 if (BIO_write(rctx
->mem
, rctx
->buf
, n
) != n
)
532 switch (rctx
->state
) {
533 case OHS_ADD_HEADERS
:
534 /* Last operation was adding headers: need a final \r\n */
535 if (BIO_write(rctx
->mem
, "\r\n", 2) != 2) {
536 rctx
->state
= OHS_ERROR
;
539 rctx
->state
= OHS_WRITE_INIT
;
543 rctx
->len_to_send
= BIO_get_mem_data(rctx
->mem
, &rctx
->pos
);
544 rctx
->state
= OHS_WRITE_HDR
;
545 if (OSSL_TRACE_ENABLED(HTTP
))
546 OSSL_TRACE(HTTP
, "Sending request header:\n");
550 /* Copy some chunk of data from rctx->mem to rctx->wbio */
552 /* Copy some chunk of data from rctx->req to rctx->wbio */
554 if (rctx
->len_to_send
> 0) {
555 if (OSSL_TRACE_ENABLED(HTTP
)
556 && rctx
->state
== OHS_WRITE_HDR
&& rctx
->len_to_send
<= INT_MAX
)
557 OSSL_TRACE2(HTTP
, "%.*s", (int)rctx
->len_to_send
, rctx
->pos
);
559 i
= BIO_write(rctx
->wbio
, rctx
->pos
, rctx
->len_to_send
);
561 if (BIO_should_retry(rctx
->wbio
))
563 rctx
->state
= OHS_ERROR
;
567 rctx
->len_to_send
-= i
;
570 if (rctx
->state
== OHS_WRITE_HDR
) {
571 (void)BIO_reset(rctx
->mem
);
572 rctx
->state
= OHS_WRITE_REQ
;
574 if (rctx
->req
!= NULL
&& !BIO_eof(rctx
->req
)) {
575 n
= BIO_read(rctx
->req
, rctx
->buf
, rctx
->buf_size
);
577 if (BIO_should_retry(rctx
->rbio
))
579 ERR_raise(ERR_LIB_HTTP
, HTTP_R_FAILED_READING_DATA
);
582 rctx
->pos
= rctx
->buf
;
583 rctx
->len_to_send
= n
;
586 rctx
->state
= OHS_FLUSH
;
591 i
= BIO_flush(rctx
->wbio
);
594 rctx
->state
= OHS_FIRSTLINE
;
598 if (BIO_should_retry(rctx
->wbio
))
601 rctx
->state
= OHS_ERROR
;
611 /* Attempt to read a line in */
614 * Due to strange memory BIO behavior with BIO_gets we have to check
615 * there's a complete line in there before calling BIO_gets or we'll
616 * just get a partial read.
618 n
= BIO_get_mem_data(rctx
->mem
, &p
);
619 if (n
<= 0 || memchr(p
, '\n', n
) == 0) {
620 if (n
>= rctx
->buf_size
) {
621 rctx
->state
= OHS_ERROR
;
626 n
= BIO_gets(rctx
->mem
, buf
, rctx
->buf_size
);
629 if (BIO_should_retry(rctx
->mem
))
631 rctx
->state
= OHS_ERROR
;
635 /* Don't allow excessive lines */
636 if (n
== rctx
->buf_size
) {
637 ERR_raise(ERR_LIB_HTTP
, HTTP_R_RESPONSE_LINE_TOO_LONG
);
638 rctx
->state
= OHS_ERROR
;
642 /* dump all response header lines */
643 if (OSSL_TRACE_ENABLED(HTTP
)) {
644 if (rctx
->state
== OHS_FIRSTLINE
)
645 OSSL_TRACE(HTTP
, "Received response header:\n");
646 OSSL_TRACE1(HTTP
, "%s", buf
);
650 if (rctx
->state
== OHS_FIRSTLINE
) {
651 switch (parse_http_line1(buf
, &found_keep_alive
)) {
652 case HTTP_STATUS_CODE_OK
:
653 rctx
->state
= OHS_HEADERS
;
655 case HTTP_STATUS_CODE_MOVED_PERMANENTLY
:
656 case HTTP_STATUS_CODE_FOUND
: /* i.e., moved temporarily */
657 if (!rctx
->method_POST
) { /* method is GET */
658 rctx
->state
= OHS_REDIRECT
;
661 ERR_raise(ERR_LIB_HTTP
, HTTP_R_REDIRECTION_NOT_ENABLED
);
662 /* redirection is not supported/recommended for POST */
665 rctx
->state
= OHS_ERROR
;
670 value
= strchr(key
, ':');
673 while (ossl_isspace(*value
))
675 line_end
= strchr(value
, '\r');
676 if (line_end
== NULL
)
677 line_end
= strchr(value
, '\n');
678 if (line_end
!= NULL
)
681 if (value
!= NULL
&& line_end
!= NULL
) {
682 if (rctx
->state
== OHS_REDIRECT
683 && OPENSSL_strcasecmp(key
, "Location") == 0) {
684 rctx
->redirection_url
= value
;
687 if (OPENSSL_strcasecmp(key
, "Content-Type") == 0) {
688 if (rctx
->state
== OHS_HEADERS
689 && rctx
->expected_ct
!= NULL
) {
690 if (OPENSSL_strcasecmp(rctx
->expected_ct
, value
) != 0) {
691 ERR_raise_data(ERR_LIB_HTTP
,
692 HTTP_R_UNEXPECTED_CONTENT_TYPE
,
693 "expected=%s, actual=%s",
694 rctx
->expected_ct
, value
);
697 found_expected_ct
= 1;
699 if (OPENSSL_strncasecmp(value
, "text/", 5) == 0)
703 /* https://tools.ietf.org/html/rfc7230#section-6.3 Persistence */
704 if (OPENSSL_strcasecmp(key
, "Connection") == 0) {
705 if (OPENSSL_strcasecmp(value
, "keep-alive") == 0)
706 found_keep_alive
= 1;
707 else if (OPENSSL_strcasecmp(value
, "close") == 0)
708 found_keep_alive
= 0;
709 } else if (OPENSSL_strcasecmp(key
, "Content-Length") == 0) {
710 resp_len
= (size_t)strtoul(value
, &line_end
, 10);
711 if (line_end
== value
|| *line_end
!= '\0') {
712 ERR_raise_data(ERR_LIB_HTTP
,
713 HTTP_R_ERROR_PARSING_CONTENT_LENGTH
,
717 if (!check_set_resp_len(rctx
, resp_len
))
722 /* Look for blank line indicating end of headers */
723 for (p
= rctx
->buf
; *p
!= '\0'; p
++) {
724 if (*p
!= '\r' && *p
!= '\n')
727 if (*p
!= '\0') /* not end of headers */
730 if (rctx
->keep_alive
!= 0 /* do not let server initiate keep_alive */
731 && !found_keep_alive
/* otherwise there is no change */) {
732 if (rctx
->keep_alive
== 2) {
733 rctx
->keep_alive
= 0;
734 ERR_raise(ERR_LIB_HTTP
, HTTP_R_SERVER_CANCELED_CONNECTION
);
737 rctx
->keep_alive
= 0;
740 if (rctx
->state
== OHS_ERROR
) {
741 if (OSSL_TRACE_ENABLED(HTTP
)
742 && found_text_ct
&& BIO_get_mem_data(rctx
->mem
, &p
) > 0)
743 OSSL_TRACE1(HTTP
, "%s", p
);
747 if (rctx
->expected_ct
!= NULL
&& !found_expected_ct
) {
748 ERR_raise_data(ERR_LIB_HTTP
, HTTP_R_MISSING_CONTENT_TYPE
,
749 "expected=%s", rctx
->expected_ct
);
752 if (rctx
->state
== OHS_REDIRECT
) {
753 /* http status code indicated redirect but there was no Location */
754 ERR_raise(ERR_LIB_HTTP
, HTTP_R_MISSING_REDIRECT_LOCATION
);
758 if (!rctx
->expect_asn1
) {
759 rctx
->state
= OHS_STREAM
;
763 rctx
->state
= OHS_ASN1_HEADER
;
766 case OHS_ASN1_HEADER
:
768 * Now reading ASN1 header: can read at least 2 bytes which is enough
769 * for ASN1 SEQUENCE header and either length field or at least the
770 * length of the length field.
772 n
= BIO_get_mem_data(rctx
->mem
, &p
);
776 /* Check it is an ASN1 SEQUENCE */
777 if (*p
++ != (V_ASN1_SEQUENCE
| V_ASN1_CONSTRUCTED
)) {
778 ERR_raise(ERR_LIB_HTTP
, HTTP_R_MISSING_ASN1_ENCODING
);
782 /* Check out length field */
783 if ((*p
& 0x80) != 0) {
785 * If MSB set on initial length octet we can now always read 6
786 * octets: make sure we have them.
791 /* Not NDEF or excessive length */
792 if (n
== 0 || (n
> 4)) {
793 ERR_raise(ERR_LIB_HTTP
, HTTP_R_ERROR_PARSING_ASN1_LENGTH
);
798 for (i
= 0; i
< n
; i
++) {
806 if (!check_set_resp_len(rctx
, resp_len
))
809 rctx
->state
= OHS_ASN1_CONTENT
;
812 case OHS_ASN1_CONTENT
:
814 n
= BIO_get_mem_data(rctx
->mem
, NULL
);
815 if (n
< 0 || (size_t)n
< rctx
->resp_len
)
818 rctx
->state
= OHS_ASN1_DONE
;
823 int OSSL_HTTP_REQ_CTX_nbio_d2i(OSSL_HTTP_REQ_CTX
*rctx
,
824 ASN1_VALUE
**pval
, const ASN1_ITEM
*it
)
826 const unsigned char *p
;
830 if ((rv
= OSSL_HTTP_REQ_CTX_nbio(rctx
)) != 1)
832 *pval
= ASN1_item_d2i(NULL
, &p
, BIO_get_mem_data(rctx
->mem
, &p
), it
);
833 return *pval
!= NULL
;
837 #ifndef OPENSSL_NO_SOCK
839 /* set up a new connection BIO, to HTTP server or to HTTP(S) proxy if given */
840 static BIO
*http_new_bio(const char *server
/* optionally includes ":port" */,
841 const char *server_port
/* explicit server port */,
843 const char *proxy
/* optionally includes ":port" */,
844 const char *proxy_port
/* explicit proxy port */)
846 const char *host
= server
;
847 const char *port
= server_port
;
850 if (!ossl_assert(server
!= NULL
))
858 if (port
== NULL
&& strchr(host
, ':') == NULL
)
859 port
= use_ssl
? OSSL_HTTPS_PORT
: OSSL_HTTP_PORT
;
861 cbio
= BIO_new_connect(host
/* optionally includes ":port" */);
865 (void)BIO_set_conn_port(cbio
, port
);
870 #endif /* OPENSSL_NO_SOCK */
872 /* Exchange request and response via HTTP on (non-)blocking BIO */
873 BIO
*OSSL_HTTP_REQ_CTX_exchange(OSSL_HTTP_REQ_CTX
*rctx
)
878 ERR_raise(ERR_LIB_HTTP
, ERR_R_PASSED_NULL_PARAMETER
);
883 rv
= OSSL_HTTP_REQ_CTX_nbio(rctx
);
886 /* BIO_should_retry was true */
887 /* will not actually wait if rctx->max_time == 0 */
888 if (BIO_wait(rctx
->rbio
, rctx
->max_time
, 100 /* milliseconds */) <= 0)
893 if (rctx
->redirection_url
== NULL
) { /* an error occurred */
894 if (rctx
->len_to_send
> 0)
895 ERR_raise(ERR_LIB_HTTP
, HTTP_R_ERROR_SENDING
);
897 ERR_raise(ERR_LIB_HTTP
, HTTP_R_ERROR_RECEIVING
);
901 return rctx
->state
== OHS_STREAM
? rctx
->rbio
: rctx
->mem
;
904 int OSSL_HTTP_is_alive(const OSSL_HTTP_REQ_CTX
*rctx
)
906 return rctx
!= NULL
&& rctx
->keep_alive
!= 0;
909 /* High-level HTTP API implementation */
911 /* Initiate an HTTP session using bio, else use given server, proxy, etc. */
912 OSSL_HTTP_REQ_CTX
*OSSL_HTTP_open(const char *server
, const char *port
,
913 const char *proxy
, const char *no_proxy
,
914 int use_ssl
, BIO
*bio
, BIO
*rbio
,
915 OSSL_HTTP_bio_cb_t bio_update_fn
, void *arg
,
916 int buf_size
, int overall_timeout
)
918 BIO
*cbio
; /* == bio if supplied, used as connection BIO if rbio is NULL */
919 OSSL_HTTP_REQ_CTX
*rctx
= NULL
;
921 if (use_ssl
&& bio_update_fn
== NULL
) {
922 ERR_raise(ERR_LIB_HTTP
, HTTP_R_TLS_NOT_ENABLED
);
925 if (rbio
!= NULL
&& (bio
== NULL
|| bio_update_fn
!= NULL
)) {
926 ERR_raise(ERR_LIB_HTTP
, ERR_R_PASSED_INVALID_ARGUMENT
);
932 if (proxy
!= NULL
|| no_proxy
!= NULL
) {
933 ERR_raise(ERR_LIB_HTTP
, ERR_R_PASSED_INVALID_ARGUMENT
);
937 #ifndef OPENSSL_NO_SOCK
938 char *proxy_host
= NULL
, *proxy_port
= NULL
;
940 if (server
== NULL
) {
941 ERR_raise(ERR_LIB_HTTP
, ERR_R_PASSED_NULL_PARAMETER
);
944 if (port
!= NULL
&& *port
== '\0')
946 if (port
== NULL
&& strchr(server
, ':') == NULL
)
947 port
= use_ssl
? OSSL_HTTPS_PORT
: OSSL_HTTP_PORT
;
948 proxy
= OSSL_HTTP_adapt_proxy(proxy
, no_proxy
, server
, use_ssl
);
950 && !OSSL_HTTP_parse_url(proxy
, NULL
/* use_ssl */, NULL
/* user */,
951 &proxy_host
, &proxy_port
, NULL
/* num */,
952 NULL
/* path */, NULL
, NULL
))
954 cbio
= http_new_bio(server
, port
, use_ssl
, proxy_host
, proxy_port
);
955 OPENSSL_free(proxy_host
);
956 OPENSSL_free(proxy_port
);
960 ERR_raise(ERR_LIB_HTTP
, HTTP_R_SOCK_NOT_SUPPORTED
);
965 (void)ERR_set_mark(); /* prepare removing any spurious libssl errors */
966 if (rbio
== NULL
&& BIO_do_connect_retry(cbio
, overall_timeout
, -1) <= 0) {
967 if (bio
== NULL
) /* cbio was not provided by caller */
971 /* now overall_timeout is guaranteed to be >= 0 */
973 /* adapt in order to fix callback design flaw, see #17088 */
974 /* callback can be used to wrap or prepend TLS session */
975 if (bio_update_fn
!= NULL
) {
976 BIO
*orig_bio
= cbio
;
978 cbio
= (*bio_update_fn
)(cbio
, arg
, 1 /* connect */, use_ssl
);
980 if (bio
== NULL
) /* cbio was not provided by caller */
981 BIO_free_all(orig_bio
);
986 rctx
= http_req_ctx_new(bio
== NULL
, cbio
, rbio
!= NULL
? rbio
: cbio
,
987 bio_update_fn
, arg
, use_ssl
, proxy
, server
, port
,
988 buf_size
, overall_timeout
);
992 /* remove any spurious error queue entries by ssl_add_cert_chain() */
993 (void)ERR_pop_to_mark();
995 (void)ERR_clear_last_mark();
1000 int OSSL_HTTP_set1_request(OSSL_HTTP_REQ_CTX
*rctx
, const char *path
,
1001 const STACK_OF(CONF_VALUE
) *headers
,
1002 const char *content_type
, BIO
*req
,
1003 const char *expected_content_type
, int expect_asn1
,
1004 size_t max_resp_len
, int timeout
, int keep_alive
)
1009 ERR_raise(ERR_LIB_HTTP
, ERR_R_PASSED_NULL_PARAMETER
);
1012 use_http_proxy
= rctx
->proxy
!= NULL
&& !rctx
->use_ssl
;
1013 if (use_http_proxy
&& rctx
->server
== NULL
) {
1014 ERR_raise(ERR_LIB_HTTP
, ERR_R_PASSED_INVALID_ARGUMENT
);
1017 rctx
->max_resp_len
= max_resp_len
; /* allows for 0: indefinite */
1019 return OSSL_HTTP_REQ_CTX_set_request_line(rctx
, req
!= NULL
,
1020 use_http_proxy
? rctx
->server
1021 : NULL
, rctx
->port
, path
)
1022 && add1_headers(rctx
, headers
, rctx
->server
)
1023 && OSSL_HTTP_REQ_CTX_set_expected(rctx
, expected_content_type
,
1024 expect_asn1
, timeout
, keep_alive
)
1025 && set1_content(rctx
, content_type
, req
);
1029 * Exchange single HTTP request and response according to rctx.
1030 * If rctx->method_POST then use POST, else use GET and ignore content_type.
1031 * The redirection_url output (freed by caller) parameter is used only for GET.
1033 BIO
*OSSL_HTTP_exchange(OSSL_HTTP_REQ_CTX
*rctx
, char **redirection_url
)
1038 ERR_raise(ERR_LIB_HTTP
, ERR_R_PASSED_NULL_PARAMETER
);
1042 if (redirection_url
!= NULL
)
1043 *redirection_url
= NULL
; /* do this beforehand to prevent dbl free */
1045 resp
= OSSL_HTTP_REQ_CTX_exchange(rctx
);
1047 if (rctx
->redirection_url
!= NULL
) {
1048 if (redirection_url
== NULL
)
1049 ERR_raise(ERR_LIB_HTTP
, HTTP_R_REDIRECTION_NOT_ENABLED
);
1051 /* may be NULL if out of memory: */
1052 *redirection_url
= OPENSSL_strdup(rctx
->redirection_url
);
1055 unsigned long err
= ERR_peek_error();
1056 int lib
= ERR_GET_LIB(err
);
1057 int reason
= ERR_GET_REASON(err
);
1059 if (lib
== ERR_LIB_SSL
|| lib
== ERR_LIB_HTTP
1060 || (lib
== ERR_LIB_BIO
&& reason
== BIO_R_CONNECT_TIMEOUT
)
1061 || (lib
== ERR_LIB_BIO
&& reason
== BIO_R_CONNECT_ERROR
)
1062 #ifndef OPENSSL_NO_CMP
1063 || (lib
== ERR_LIB_CMP
1064 && reason
== CMP_R_POTENTIALLY_INVALID_CERTIFICATE
)
1067 if (rctx
->server
!= NULL
) {
1068 BIO_snprintf(buf
, sizeof(buf
), "server=http%s://%s%s%s",
1069 rctx
->use_ssl
? "s" : "", rctx
->server
,
1070 rctx
->port
!= NULL
? ":" : "",
1071 rctx
->port
!= NULL
? rctx
->port
: "");
1072 ERR_add_error_data(1, buf
);
1074 if (rctx
->proxy
!= NULL
)
1075 ERR_add_error_data(2, " proxy=", rctx
->proxy
);
1077 BIO_snprintf(buf
, sizeof(buf
), " peer has disconnected%s",
1078 rctx
->use_ssl
? " violating the protocol" :
1079 ", likely because it requires the use of TLS");
1080 ERR_add_error_data(1, buf
);
1086 if (resp
!= NULL
&& !BIO_up_ref(resp
))
1091 static int redirection_ok(int n_redir
, const char *old_url
, const char *new_url
)
1093 if (n_redir
>= HTTP_VERSION_MAX_REDIRECTIONS
) {
1094 ERR_raise(ERR_LIB_HTTP
, HTTP_R_TOO_MANY_REDIRECTIONS
);
1097 if (*new_url
== '/') /* redirection to same server => same protocol */
1099 if (HAS_PREFIX(old_url
, OSSL_HTTPS_NAME
":") &&
1100 !HAS_PREFIX(new_url
, OSSL_HTTPS_NAME
":")) {
1101 ERR_raise(ERR_LIB_HTTP
, HTTP_R_REDIRECTION_FROM_HTTPS_TO_HTTP
);
1107 /* Get data via HTTP from server at given URL, potentially with redirection */
1108 BIO
*OSSL_HTTP_get(const char *url
, const char *proxy
, const char *no_proxy
,
1109 BIO
*bio
, BIO
*rbio
,
1110 OSSL_HTTP_bio_cb_t bio_update_fn
, void *arg
,
1111 int buf_size
, const STACK_OF(CONF_VALUE
) *headers
,
1112 const char *expected_ct
, int expect_asn1
,
1113 size_t max_resp_len
, int timeout
)
1115 char *current_url
, *redirection_url
= NULL
;
1121 OSSL_HTTP_REQ_CTX
*rctx
;
1123 time_t max_time
= timeout
> 0 ? time(NULL
) + timeout
: 0;
1126 ERR_raise(ERR_LIB_HTTP
, ERR_R_PASSED_NULL_PARAMETER
);
1129 if ((current_url
= OPENSSL_strdup(url
)) == NULL
)
1133 if (!OSSL_HTTP_parse_url(current_url
, &use_ssl
, NULL
/* user */, &host
,
1134 &port
, NULL
/* port_num */, &path
, NULL
, NULL
))
1137 rctx
= OSSL_HTTP_open(host
, port
, proxy
, no_proxy
,
1138 use_ssl
, bio
, rbio
, bio_update_fn
, arg
,
1142 if (!OSSL_HTTP_set1_request(rctx
, path
, headers
,
1143 NULL
/* content_type */,
1145 expected_ct
, expect_asn1
, max_resp_len
,
1146 -1 /* use same max time (timeout) */,
1147 0 /* no keep_alive */))
1148 OSSL_HTTP_REQ_CTX_free(rctx
);
1150 resp
= OSSL_HTTP_exchange(rctx
, &redirection_url
);
1153 if (resp
== NULL
&& redirection_url
!= NULL
) {
1154 if (redirection_ok(++n_redirs
, current_url
, redirection_url
)
1155 && may_still_retry(max_time
, &timeout
)) {
1156 (void)BIO_reset(bio
);
1157 OPENSSL_free(current_url
);
1158 current_url
= redirection_url
;
1159 if (*redirection_url
== '/') { /* redirection to same server */
1160 path
= OPENSSL_strdup(redirection_url
);
1165 (void)OSSL_HTTP_close(rctx
, 1);
1168 /* if redirection not allowed, ignore it */
1169 OPENSSL_free(redirection_url
);
1173 if (!OSSL_HTTP_close(rctx
, resp
!= NULL
)) {
1179 OPENSSL_free(current_url
);
1183 /* Exchange request and response over a connection managed via |prctx| */
1184 BIO
*OSSL_HTTP_transfer(OSSL_HTTP_REQ_CTX
**prctx
,
1185 const char *server
, const char *port
,
1186 const char *path
, int use_ssl
,
1187 const char *proxy
, const char *no_proxy
,
1188 BIO
*bio
, BIO
*rbio
,
1189 OSSL_HTTP_bio_cb_t bio_update_fn
, void *arg
,
1190 int buf_size
, const STACK_OF(CONF_VALUE
) *headers
,
1191 const char *content_type
, BIO
*req
,
1192 const char *expected_ct
, int expect_asn1
,
1193 size_t max_resp_len
, int timeout
, int keep_alive
)
1195 OSSL_HTTP_REQ_CTX
*rctx
= prctx
== NULL
? NULL
: *prctx
;
1199 rctx
= OSSL_HTTP_open(server
, port
, proxy
, no_proxy
,
1200 use_ssl
, bio
, rbio
, bio_update_fn
, arg
,
1202 timeout
= -1; /* Already set during opening the connection */
1205 if (OSSL_HTTP_set1_request(rctx
, path
, headers
, content_type
, req
,
1206 expected_ct
, expect_asn1
,
1207 max_resp_len
, timeout
, keep_alive
))
1208 resp
= OSSL_HTTP_exchange(rctx
, NULL
);
1209 if (resp
== NULL
|| !OSSL_HTTP_is_alive(rctx
)) {
1210 if (!OSSL_HTTP_close(rctx
, resp
!= NULL
)) {
1222 int OSSL_HTTP_close(OSSL_HTTP_REQ_CTX
*rctx
, int ok
)
1227 /* callback can be used to finish TLS session and free its BIO */
1228 if (rctx
!= NULL
&& rctx
->upd_fn
!= NULL
) {
1229 wbio
= (*rctx
->upd_fn
)(rctx
->wbio
, rctx
->upd_arg
,
1230 0 /* disconnect */, ok
);
1235 OSSL_HTTP_REQ_CTX_free(rctx
);
1239 /* BASE64 encoder used for encoding basic proxy authentication credentials */
1240 static char *base64encode(const void *buf
, size_t len
)
1246 /* Calculate size of encoded data */
1251 out
= OPENSSL_malloc(outl
+ 1);
1255 i
= EVP_EncodeBlock((unsigned char *)out
, buf
, len
);
1256 if (!ossl_assert(0 <= i
&& (size_t)i
<= outl
)) {
1264 * Promote the given connection BIO using the CONNECT method for a TLS proxy.
1265 * This is typically called by an app, so bio_err and prog are used unless NULL
1266 * to print additional diagnostic information in a user-oriented way.
1268 int OSSL_HTTP_proxy_connect(BIO
*bio
, const char *server
, const char *port
,
1269 const char *proxyuser
, const char *proxypass
,
1270 int timeout
, BIO
*bio_err
, const char *prog
)
1273 #define BUF_SIZE (8 * 1024)
1274 char *mbuf
= OPENSSL_malloc(BUF_SIZE
);
1278 BIO
*fbio
= BIO_new(BIO_f_buffer());
1280 time_t max_time
= timeout
> 0 ? time(NULL
) + timeout
: 0;
1282 if (bio
== NULL
|| server
== NULL
1283 || (bio_err
!= NULL
&& prog
== NULL
)) {
1284 ERR_raise(ERR_LIB_HTTP
, ERR_R_PASSED_NULL_PARAMETER
);
1287 if (port
== NULL
|| *port
== '\0')
1288 port
= OSSL_HTTPS_PORT
;
1290 if (mbuf
== NULL
|| fbio
== NULL
) {
1291 BIO_printf(bio_err
/* may be NULL */, "%s: out of memory", prog
);
1294 BIO_push(fbio
, bio
);
1296 BIO_printf(fbio
, "CONNECT %s:%s "HTTP_1_0
"\r\n", server
, port
);
1299 * Workaround for broken proxies which would otherwise close
1300 * the connection when entering tunnel mode (e.g., Squid 2.6)
1302 BIO_printf(fbio
, "Proxy-Connection: Keep-Alive\r\n");
1304 /* Support for basic (base64) proxy authentication */
1305 if (proxyuser
!= NULL
) {
1306 size_t len
= strlen(proxyuser
) + 1;
1307 char *proxyauth
, *proxyauthenc
= NULL
;
1309 if (proxypass
!= NULL
)
1310 len
+= strlen(proxypass
);
1311 proxyauth
= OPENSSL_malloc(len
+ 1);
1312 if (proxyauth
== NULL
)
1314 if (BIO_snprintf(proxyauth
, len
+ 1, "%s:%s", proxyuser
,
1315 proxypass
!= NULL
? proxypass
: "") != (int)len
)
1317 proxyauthenc
= base64encode(proxyauth
, len
);
1318 if (proxyauthenc
!= NULL
) {
1319 BIO_printf(fbio
, "Proxy-Authorization: Basic %s\r\n", proxyauthenc
);
1320 OPENSSL_clear_free(proxyauthenc
, strlen(proxyauthenc
));
1323 OPENSSL_clear_free(proxyauth
, len
);
1324 if (proxyauthenc
== NULL
)
1328 /* Terminate the HTTP CONNECT request */
1329 BIO_printf(fbio
, "\r\n");
1332 if (BIO_flush(fbio
) != 0)
1334 /* potentially needs to be retried if BIO is non-blocking */
1335 if (!BIO_should_retry(fbio
))
1340 /* will not actually wait if timeout == 0 */
1341 rv
= BIO_wait(fbio
, max_time
, 100 /* milliseconds */);
1343 BIO_printf(bio_err
, "%s: HTTP CONNECT %s\n", prog
,
1344 rv
== 0 ? "timed out" : "failed waiting for data");
1349 * The first line is the HTTP response.
1350 * According to RFC 7230, it is formatted exactly like this:
1351 * HTTP/d.d ddd reason text\r\n
1353 read_len
= BIO_gets(fbio
, mbuf
, BUF_SIZE
);
1354 /* the BIO may not block, so we must wait for the 1st line to come in */
1355 if (read_len
< (int)HTTP_LINE1_MINLEN
)
1358 /* Check for HTTP/1.x */
1360 if (!CHECK_AND_SKIP_PREFIX(mbufp
, HTTP_PREFIX
)) {
1361 ERR_raise(ERR_LIB_HTTP
, HTTP_R_HEADER_PARSE_ERROR
);
1362 BIO_printf(bio_err
, "%s: HTTP CONNECT failed, non-HTTP response\n",
1364 /* Wrong protocol, not even HTTP, so stop reading headers */
1367 if (!HAS_PREFIX(mbufp
, HTTP_VERSION_PATT
)) {
1368 ERR_raise(ERR_LIB_HTTP
, HTTP_R_RECEIVED_WRONG_HTTP_VERSION
);
1370 "%s: HTTP CONNECT failed, bad HTTP version %.*s\n",
1371 prog
, (int)HTTP_VERSION_STR_LEN
, mbufp
);
1374 mbufp
+= HTTP_VERSION_STR_LEN
;
1376 /* RFC 7231 4.3.6: any 2xx status code is valid */
1377 if (!HAS_PREFIX(mbufp
, " 2")) {
1378 if (ossl_isspace(*mbufp
))
1380 /* chop any trailing whitespace */
1381 while (read_len
> 0 && ossl_isspace(mbuf
[read_len
- 1]))
1383 mbuf
[read_len
] = '\0';
1384 ERR_raise_data(ERR_LIB_HTTP
, HTTP_R_CONNECT_FAILURE
,
1385 "reason=%s", mbufp
);
1386 BIO_printf(bio_err
, "%s: HTTP CONNECT failed, reason=%s\n",
1394 /* Read past all following headers */
1397 * This does not necessarily catch the case when the full
1398 * HTTP response came in in more than a single TCP message.
1400 read_len
= BIO_gets(fbio
, mbuf
, BUF_SIZE
);
1401 } while (read_len
> 2);
1405 (void)BIO_flush(fbio
);