2012-06-04 16:48:31 +02:00
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/*
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2014-03-30 12:09:21 +02:00
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* nghttp2 - HTTP/2 C Library
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2012-06-04 16:48:31 +02:00
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*
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* Copyright (c) 2012 Tatsuhiro Tsujikawa
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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#include "shrpx_http.h"
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#include "shrpx_config.h"
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2012-12-09 13:36:02 +01:00
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#include "shrpx_log.h"
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2013-08-27 19:47:22 +02:00
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#include "http2.h"
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2012-06-12 17:08:28 +02:00
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#include "util.h"
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2013-07-12 17:19:03 +02:00
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using namespace nghttp2;
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2012-06-12 17:08:28 +02:00
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2012-06-04 16:48:31 +02:00
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namespace shrpx {
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namespace http {
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2014-11-27 15:39:04 +01:00
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std::string create_error_html(unsigned int status_code) {
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2013-01-16 14:43:11 +01:00
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std::string res;
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res.reserve(512);
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2013-10-02 16:29:44 +02:00
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auto status = http2::get_status_string(status_code);
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2015-03-05 15:34:42 +01:00
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res += R"(<!DOCTYPE html><html lang="en"><title>)";
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2013-01-16 14:43:11 +01:00
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res += status;
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2015-01-22 15:51:22 +01:00
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res += "</title><body><h1>";
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2013-01-16 14:43:11 +01:00
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res += status;
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2015-01-22 15:51:22 +01:00
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res += "</h1><footer>";
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2016-01-18 09:00:20 +01:00
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const auto &server_name = get_config()->http.server_name;
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2016-01-16 17:15:11 +01:00
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res.append(server_name.c_str(), server_name.size());
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2015-01-22 15:51:22 +01:00
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res += "</footer></body></html>";
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2013-01-16 14:43:11 +01:00
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return res;
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2012-06-04 16:48:31 +02:00
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}
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2016-01-31 11:41:56 +01:00
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std::string create_forwarded(int params, const StringRef &node_by,
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2016-02-28 15:54:02 +01:00
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const StringRef &node_for, const StringRef &host,
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const StringRef &proto) {
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2016-01-15 15:04:58 +01:00
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std::string res;
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if ((params & FORWARDED_BY) && !node_by.empty()) {
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2016-01-19 14:27:09 +01:00
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// This must be quoted-string unless it is obfuscated version
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2016-02-01 15:31:21 +01:00
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// (which starts with "_") or some special value (e.g.,
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// "localhost" for UNIX domain socket), since ':' is not allowed
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// in token. ':' is used to separate host and port.
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if (node_by[0] == '_' || node_by[0] == 'l') {
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2016-01-19 14:27:09 +01:00
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res += "by=";
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res += node_by;
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res += ";";
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} else {
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res += "by=\"";
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res += node_by;
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res += "\";";
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}
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2016-01-15 15:04:58 +01:00
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}
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if ((params & FORWARDED_FOR) && !node_for.empty()) {
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2016-01-19 14:27:09 +01:00
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// We only quote IPv6 literal address only, which starts with '['.
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if (node_for[0] == '[') {
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res += "for=\"";
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res += node_for;
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res += "\";";
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} else {
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res += "for=";
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res += node_for;
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res += ";";
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}
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2016-01-15 15:04:58 +01:00
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}
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if ((params & FORWARDED_HOST) && !host.empty()) {
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2016-01-19 14:27:09 +01:00
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// Just be quoted to skip checking characters.
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2016-01-15 15:04:58 +01:00
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res += "host=\"";
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res += host;
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res += "\";";
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}
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if ((params & FORWARDED_PROTO) && !proto.empty()) {
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2016-01-19 14:27:09 +01:00
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// Scheme production rule only allow characters which are all in
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// token.
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res += "proto=";
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2016-01-15 15:04:58 +01:00
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res += proto;
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2016-01-19 14:27:09 +01:00
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res += ";";
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2016-01-15 15:04:58 +01:00
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}
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if (res.empty()) {
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return res;
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}
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res.erase(res.size() - 1);
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return res;
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}
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2014-11-27 15:39:04 +01:00
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std::string colorizeHeaders(const char *hdrs) {
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2012-12-09 13:36:02 +01:00
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std::string nhdrs;
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const char *p = strchr(hdrs, '\n');
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2014-11-27 15:39:04 +01:00
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if (!p) {
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2012-12-09 13:36:02 +01:00
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// Not valid HTTP header
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return hdrs;
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}
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2014-11-27 15:39:04 +01:00
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nhdrs.append(hdrs, p + 1);
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2012-12-09 13:36:02 +01:00
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++p;
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2014-11-27 15:39:04 +01:00
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while (1) {
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const char *np = strchr(p, ':');
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if (!np) {
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2012-12-09 13:36:02 +01:00
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nhdrs.append(p);
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break;
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}
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nhdrs += TTY_HTTP_HD;
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nhdrs.append(p, np);
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nhdrs += TTY_RST;
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p = np;
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np = strchr(p, '\n');
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2014-11-27 15:39:04 +01:00
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if (!np) {
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2012-12-09 13:36:02 +01:00
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nhdrs.append(p);
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break;
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}
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2014-11-27 15:39:04 +01:00
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nhdrs.append(p, np + 1);
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p = np + 1;
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2012-12-09 13:36:02 +01:00
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}
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return nhdrs;
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}
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2014-11-27 15:39:04 +01:00
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ssize_t select_padding_callback(nghttp2_session *session,
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const nghttp2_frame *frame, size_t max_payload,
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void *user_data) {
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2014-02-15 08:40:32 +01:00
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return std::min(max_payload, frame->hd.length + get_config()->padding);
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2014-02-11 09:23:22 +01:00
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}
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2012-06-04 16:48:31 +02:00
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} // namespace http
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} // namespace shrpx
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