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CURLOPT_HEADEROPT: default to separate

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Make the HTTP headers separated by default for improved security and
reduced risk for information leakage.

Bug: http://curl.haxx.se/docs/adv_20150429.html
Reported-by: Yehezkel Horowitz, Oren Souroujon
This commit is contained in:
Daniel Stenberg 2015-04-23 15:58:21 +02:00
parent 1f8a337e41
commit 6ba2e88a64
5 changed files with 10 additions and 8 deletions
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12
docs/libcurl/opts/CURLOPT_HEADEROPT.3
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@ -5,7 +5,7 @@
.\" * | (__| |_| | _ <| |___
.\" * \___|\___/|_| \_\_____|
.\" *
.\" * Copyright (C) 1998 - 2014, Daniel Stenberg, <daniel@haxx.se>, et al.
.\" * Copyright (C) 1998 - 2015, Daniel Stenberg, <daniel@haxx.se>, et al.
.\" *
.\" * This software is licensed as described in the file COPYING, which
.\" * you should have received as part of this distribution. The terms
@ -31,10 +31,10 @@ CURLcode curl_easy_setopt(CURL *handle, CURLOPT_HEADEROPT, long bitmask);
Pass a long that is a bitmask of options of how to deal with headers. The two
mutually exclusive options are:
\fBCURLHEADER_UNIFIED\fP - keep working as before. This means
\fICURLOPT_HTTPHEADER(3)\fP headers will be used in requests both to servers
and proxies. With this option enabled, \fICURLOPT_PROXYHEADER(3)\fP will not
have any effect.
\fBCURLHEADER_UNIFIED\fP - the headers specified in
\fICURLOPT_HTTPHEADER(3)\fP will be used in requests both to servers and
proxies. With this option enabled, \fICURLOPT_PROXYHEADER(3)\fP will not have
any effect.
\fBCURLHEADER_SEPARATE\fP - makes \fICURLOPT_HTTPHEADER(3)\fP headers only get
sent to a server and not to a proxy. Proxy headers must be set with
@ -44,7 +44,7 @@ headers. When doing CONNECT, libcurl will send \fICURLOPT_PROXYHEADER(3)\fP
headers only to the proxy and then \fICURLOPT_HTTPHEADER(3)\fP headers only to
the server.
.SH DEFAULT
CURLHEADER_UNIFIED
CURLHEADER_SEPARATE (changed in 7.42.1, ased CURLHEADER_UNIFIED before then)
.SH PROTOCOLS
HTTP
.SH EXAMPLE

1
lib/url.c
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@ -617,6 +617,7 @@ CURLcode Curl_init_userdefined(struct UserDefined *set)
set->ssl_enable_alpn = TRUE;
set->expect_100_timeout = 1000L; /* Wait for a second by default. */
set->sep_headers = TRUE; /* separated header lists by default */
return result;
}

2
tests/data/test1527
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@ -45,7 +45,7 @@ http-proxy
lib1527
</tool>
<name>
Check same headers are generated without CURLOPT_PROXYHEADER
Check same headers are generated with CURLOPT_HEADEROPT == CURLHEADER_UNIFIED
</name>
<command>
http://the.old.moo.1527:%HTTPPORT/1527 %HOSTIP:%PROXYPORT

2
tests/data/test287
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@ -28,7 +28,7 @@ http
HTTP proxy CONNECT with custom User-Agent header
</name>
<command>
http://test.remote.example.com.287:%HTTPPORT/path/287 -H "User-Agent: looser/2007" --proxy http://%HOSTIP:%HTTPPORT --proxytunnel
http://test.remote.example.com.287:%HTTPPORT/path/287 -H "User-Agent: looser/2015" --proxy http://%HOSTIP:%HTTPPORT --proxytunnel --proxy-header "User-Agent: looser/2007"
</command>
</client>

1
tests/libtest/lib1527.c
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@ -83,6 +83,7 @@ int test(char *URL)
test_setopt(curl, CURLOPT_READFUNCTION, read_callback);
test_setopt(curl, CURLOPT_HTTPPROXYTUNNEL, 1L);
test_setopt(curl, CURLOPT_INFILESIZE, strlen(data));
test_setopt(curl, CURLOPT_HEADEROPT, CURLHEADER_UNIFIED);
res = curl_easy_perform(curl);