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nghttpx: Don't rewrite host header field by default

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In reverse proxy usage, backend server most likely wants to see the
original header field.  So this commit turns off host header rewrite
by default.  --no-host-rewrite option is deprecated, and if it is
used, warning message is displayed.  --host-rewrite option is added to
enable host rewrite.
This commit is contained in:
Tatsuhiro Tsujikawa 2015-07-23 23:54:56 +09:00
parent 04bd25d468
commit cab6c7871c
4 changed files with 22 additions and 4 deletions
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1
gennghttpxfun.py
View File

@ -92,6 +92,7 @@ OPTIONS = [
"max-header-fields",
"include",
"tls-ticket-cipher",
"host-rewrite",
"conf",
]

11
src/shrpx.cc
View File

@ -995,7 +995,7 @@ void fill_default_config() {
mod_config()->tls_proto_mask = 0;
mod_config()->no_location_rewrite = false;
mod_config()->no_host_rewrite = false;
mod_config()->no_host_rewrite = true;
mod_config()->argc = 0;
mod_config()->argv = nullptr;
mod_config()->downstream_connections_per_host = 8;
@ -1498,8 +1498,8 @@ HTTP:
--client and default mode. For --http2-proxy and
--client-proxy mode, location header field will not be
altered regardless of this option.
--no-host-rewrite
Don't rewrite host and :authority header fields on
--host-rewrite
Rewrite host and :authority header fields on
--http2-bridge, --client and default mode. For
--http2-proxy and --client-proxy mode, these headers
will not be altered regardless of this option.
@ -1718,6 +1718,7 @@ int main(int argc, char **argv) {
{SHRPX_OPT_ADD_REQUEST_HEADER, required_argument, &flag, 82},
{SHRPX_OPT_INCLUDE, required_argument, &flag, 83},
{SHRPX_OPT_TLS_TICKET_CIPHER, required_argument, &flag, 84},
{SHRPX_OPT_HOST_REWRITE, no_argument, &flag, 85},
{nullptr, 0, nullptr, 0}};
int option_index = 0;
@ -2088,6 +2089,10 @@ int main(int argc, char **argv) {
// --tls-ticket-cipher
cmdcfgs.emplace_back(SHRPX_OPT_TLS_TICKET_CIPHER, optarg);
break;
case 85:
// --host-rewrite
cmdcfgs.emplace_back(SHRPX_OPT_HOST_REWRITE, "yes");
break;
default:
break;
}

13
src/shrpx_config.cc
View File

@ -674,6 +674,7 @@ enum {
SHRPX_OPTID_FRONTEND_READ_TIMEOUT,
SHRPX_OPTID_FRONTEND_WRITE_TIMEOUT,
SHRPX_OPTID_HEADER_FIELD_BUFFER,
SHRPX_OPTID_HOST_REWRITE,
SHRPX_OPTID_HTTP2_BRIDGE,
SHRPX_OPTID_HTTP2_MAX_CONCURRENT_STREAMS,
SHRPX_OPTID_HTTP2_NO_COOKIE_CRUMBLING,
@ -881,6 +882,9 @@ int option_lookup_token(const char *name, size_t namelen) {
}
break;
case 'e':
if (util::strieq_l("host-rewrit", name, 11)) {
return SHRPX_OPTID_HOST_REWRITE;
}
if (util::strieq_l("http2-bridg", name, 11)) {
return SHRPX_OPTID_HTTP2_BRIDGE;
}
@ -1736,7 +1740,10 @@ int parse_config(const char *opt, const char *optarg,
return 0;
case SHRPX_OPTID_NO_HOST_REWRITE:
mod_config()->no_host_rewrite = util::strieq(optarg, "yes");
LOG(WARN) << SHRPX_OPT_NO_HOST_REWRITE
<< ": deprecated. :authority and host header fields are NOT "
"altered by default. To rewrite these headers, use "
"--host-rewrite option.";
return 0;
case SHRPX_OPTID_BACKEND_HTTP1_CONNECTIONS_PER_HOST: {
@ -1853,6 +1860,10 @@ int parse_config(const char *opt, const char *optarg,
}
mod_config()->tls_ticket_cipher_given = true;
return 0;
case SHRPX_OPTID_HOST_REWRITE:
mod_config()->no_host_rewrite = !util::strieq(optarg, "yes");
return 0;
case SHRPX_OPTID_CONF:
LOG(WARN) << "conf: ignored";

1
src/shrpx_config.h
View File

@ -172,6 +172,7 @@ constexpr char SHRPX_OPT_HEADER_FIELD_BUFFER[] = "header-field-buffer";
constexpr char SHRPX_OPT_MAX_HEADER_FIELDS[] = "max-header-fields";
constexpr char SHRPX_OPT_INCLUDE[] = "include";
constexpr char SHRPX_OPT_TLS_TICKET_CIPHER[] = "tls-ticket-cipher";
constexpr char SHRPX_OPT_HOST_REWRITE[] = "host-rewrite";
union sockaddr_union {
sockaddr_storage storage;