1215 lines
35 KiB
C++
1215 lines
35 KiB
C++
/*
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* nghttp2 - HTTP/2 C Library
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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_downstream.h"
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#include <cassert>
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#include "http-parser/http_parser.h"
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#include "shrpx_upstream.h"
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#include "shrpx_client_handler.h"
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#include "shrpx_config.h"
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#include "shrpx_error.h"
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#include "shrpx_downstream_connection.h"
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#include "shrpx_downstream_queue.h"
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#include "util.h"
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#include "http2.h"
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namespace shrpx {
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namespace {
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void upstream_timeoutcb(struct ev_loop *loop, ev_timer *w, int revents) {
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auto downstream = static_cast<Downstream *>(w->data);
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auto upstream = downstream->get_upstream();
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auto which = revents == EV_READ ? "read" : "write";
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if (LOG_ENABLED(INFO)) {
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DLOG(INFO, downstream) << "upstream timeout stream_id="
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<< downstream->get_stream_id() << " event=" << which;
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}
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downstream->disable_upstream_rtimer();
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downstream->disable_upstream_wtimer();
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upstream->on_timeout(downstream);
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}
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} // namespace
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namespace {
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void upstream_rtimeoutcb(struct ev_loop *loop, ev_timer *w, int revents) {
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upstream_timeoutcb(loop, w, EV_READ);
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}
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} // namespace
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namespace {
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void upstream_wtimeoutcb(struct ev_loop *loop, ev_timer *w, int revents) {
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upstream_timeoutcb(loop, w, EV_WRITE);
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}
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} // namespace
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namespace {
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void downstream_timeoutcb(struct ev_loop *loop, ev_timer *w, int revents) {
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auto downstream = static_cast<Downstream *>(w->data);
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auto which = revents == EV_READ ? "read" : "write";
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if (LOG_ENABLED(INFO)) {
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DLOG(INFO, downstream) << "downstream timeout stream_id="
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<< downstream->get_downstream_stream_id()
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<< " event=" << which;
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}
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downstream->disable_downstream_rtimer();
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downstream->disable_downstream_wtimer();
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auto dconn = downstream->get_downstream_connection();
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if (dconn) {
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dconn->on_timeout();
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}
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}
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} // namespace
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namespace {
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void downstream_rtimeoutcb(struct ev_loop *loop, ev_timer *w, int revents) {
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downstream_timeoutcb(loop, w, EV_READ);
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}
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} // namespace
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namespace {
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void downstream_wtimeoutcb(struct ev_loop *loop, ev_timer *w, int revents) {
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downstream_timeoutcb(loop, w, EV_WRITE);
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}
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} // namespace
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// upstream could be nullptr for unittests
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Downstream::Downstream(Upstream *upstream, int32_t stream_id, int32_t priority)
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: dlnext(nullptr), dlprev(nullptr),
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request_start_time_(std::chrono::high_resolution_clock::now()),
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request_buf_(upstream ? upstream->get_mcpool() : nullptr),
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response_buf_(upstream ? upstream->get_mcpool() : nullptr),
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request_bodylen_(0), response_bodylen_(0), response_sent_bodylen_(0),
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request_content_length_(-1), response_content_length_(-1),
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upstream_(upstream), blocked_link_(nullptr), request_headers_sum_(0),
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response_headers_sum_(0), request_datalen_(0), response_datalen_(0),
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num_retry_(0), stream_id_(stream_id), priority_(priority),
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downstream_stream_id_(-1),
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response_rst_stream_error_code_(NGHTTP2_NO_ERROR),
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request_state_(INITIAL), request_major_(1), request_minor_(1),
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response_state_(INITIAL), response_http_status_(0), response_major_(1),
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response_minor_(1), dispatch_state_(DISPATCH_NONE),
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upgrade_request_(false), upgraded_(false), http2_upgrade_seen_(false),
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chunked_request_(false), request_connection_close_(false),
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request_header_key_prev_(false), request_trailer_key_prev_(false),
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request_http2_expect_body_(false), chunked_response_(false),
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response_connection_close_(false), response_header_key_prev_(false),
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response_trailer_key_prev_(false), expect_final_response_(false),
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request_pending_(false) {
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ev_timer_init(&upstream_rtimer_, &upstream_rtimeoutcb, 0.,
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get_config()->stream_read_timeout);
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ev_timer_init(&upstream_wtimer_, &upstream_wtimeoutcb, 0.,
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get_config()->stream_write_timeout);
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ev_timer_init(&downstream_rtimer_, &downstream_rtimeoutcb, 0.,
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get_config()->stream_read_timeout);
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ev_timer_init(&downstream_wtimer_, &downstream_wtimeoutcb, 0.,
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get_config()->stream_write_timeout);
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upstream_rtimer_.data = this;
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upstream_wtimer_.data = this;
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downstream_rtimer_.data = this;
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downstream_wtimer_.data = this;
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http2::init_hdidx(request_hdidx_);
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http2::init_hdidx(response_hdidx_);
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}
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Downstream::~Downstream() {
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if (LOG_ENABLED(INFO)) {
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DLOG(INFO, this) << "Deleting";
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}
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if (blocked_link_) {
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detach_blocked_link(blocked_link_);
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}
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// check nullptr for unittest
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if (upstream_) {
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auto loop = upstream_->get_client_handler()->get_loop();
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ev_timer_stop(loop, &upstream_rtimer_);
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ev_timer_stop(loop, &upstream_wtimer_);
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ev_timer_stop(loop, &downstream_rtimer_);
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ev_timer_stop(loop, &downstream_wtimer_);
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}
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if (LOG_ENABLED(INFO)) {
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DLOG(INFO, this) << "Deleted";
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}
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}
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int Downstream::attach_downstream_connection(
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std::unique_ptr<DownstreamConnection> dconn) {
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if (dconn->attach_downstream(this) != 0) {
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return -1;
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}
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dconn_ = std::move(dconn);
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return 0;
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}
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void Downstream::detach_downstream_connection() {
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if (!dconn_) {
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return;
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}
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dconn_->detach_downstream(this);
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auto handler = dconn_->get_client_handler();
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handler->pool_downstream_connection(
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std::unique_ptr<DownstreamConnection>(dconn_.release()));
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}
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void Downstream::release_downstream_connection() { dconn_.release(); }
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DownstreamConnection *Downstream::get_downstream_connection() {
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return dconn_.get();
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}
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std::unique_ptr<DownstreamConnection> Downstream::pop_downstream_connection() {
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return std::unique_ptr<DownstreamConnection>(dconn_.release());
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}
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void Downstream::pause_read(IOCtrlReason reason) {
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if (dconn_) {
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dconn_->pause_read(reason);
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}
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}
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int Downstream::resume_read(IOCtrlReason reason, size_t consumed) {
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if (dconn_) {
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return dconn_->resume_read(reason, consumed);
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}
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return 0;
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}
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void Downstream::force_resume_read() {
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if (dconn_) {
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dconn_->force_resume_read();
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}
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}
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namespace {
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const Headers::value_type *get_header_linear(const Headers &headers,
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const std::string &name) {
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const Headers::value_type *res = nullptr;
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for (auto &kv : headers) {
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if (kv.name == name) {
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res = &kv;
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}
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}
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return res;
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}
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} // namespace
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const Headers &Downstream::get_request_headers() const {
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return request_headers_;
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}
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void Downstream::assemble_request_cookie() {
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std::string &cookie = assembled_request_cookie_;
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cookie = "";
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for (auto &kv : request_headers_) {
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if (kv.name.size() != 6 || kv.name[5] != 'e' ||
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!util::streq_l("cooki", kv.name.c_str(), 5)) {
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continue;
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}
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auto end = kv.value.find_last_not_of(" ;");
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if (end == std::string::npos) {
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cookie += kv.value;
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} else {
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cookie.append(std::begin(kv.value), std::begin(kv.value) + end + 1);
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}
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cookie += "; ";
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}
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if (cookie.size() >= 2) {
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cookie.erase(cookie.size() - 2);
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}
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}
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Headers Downstream::crumble_request_cookie() {
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Headers cookie_hdrs;
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for (auto &kv : request_headers_) {
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if (kv.name.size() != 6 || kv.name[5] != 'e' ||
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!util::streq_l("cooki", kv.name.c_str(), 5)) {
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continue;
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}
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size_t last = kv.value.size();
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for (size_t j = 0; j < last;) {
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j = kv.value.find_first_not_of("\t ;", j);
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if (j == std::string::npos) {
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break;
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}
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auto first = j;
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j = kv.value.find(';', j);
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if (j == std::string::npos) {
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j = last;
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}
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cookie_hdrs.push_back(
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Header("cookie", kv.value.substr(first, j - first), kv.no_index));
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}
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}
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return cookie_hdrs;
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}
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const std::string &Downstream::get_assembled_request_cookie() const {
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return assembled_request_cookie_;
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}
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namespace {
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void add_header(bool &key_prev, size_t &sum, Headers &headers, std::string name,
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std::string value) {
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key_prev = true;
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sum += name.size() + value.size();
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headers.emplace_back(std::move(name), std::move(value));
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}
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} // namespace
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namespace {
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void append_last_header_key(bool key_prev, size_t &sum, Headers &headers,
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const char *data, size_t len) {
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assert(key_prev);
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sum += len;
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auto &item = headers.back();
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item.name.append(data, len);
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}
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} // namespace
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namespace {
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void append_last_header_value(bool key_prev, size_t &sum, Headers &headers,
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const char *data, size_t len) {
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assert(!key_prev);
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sum += len;
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auto &item = headers.back();
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item.value.append(data, len);
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}
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} // namespace
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namespace {
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void set_last_header_value(bool &key_prev, size_t &sum, Headers &headers,
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const char *data, size_t len) {
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key_prev = false;
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sum += len;
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auto &item = headers.back();
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item.value.assign(data, len);
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}
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} // namespace
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namespace {
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int index_headers(http2::HeaderIndex &hdidx, Headers &headers,
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int64_t &content_length) {
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for (size_t i = 0; i < headers.size(); ++i) {
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auto &kv = headers[i];
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util::inp_strlower(kv.name);
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auto token = http2::lookup_token(
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reinterpret_cast<const uint8_t *>(kv.name.c_str()), kv.name.size());
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if (token < 0) {
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continue;
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}
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kv.token = token;
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http2::index_header(hdidx, token, i);
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if (token == http2::HD_CONTENT_LENGTH) {
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auto len = util::parse_uint(kv.value);
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if (len == -1) {
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return -1;
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}
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if (content_length != -1) {
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return -1;
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}
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content_length = len;
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}
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}
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return 0;
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}
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} // namespace
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int Downstream::index_request_headers() {
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return index_headers(request_hdidx_, request_headers_,
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request_content_length_);
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}
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const Headers::value_type *Downstream::get_request_header(int16_t token) const {
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return http2::get_header(request_hdidx_, token, request_headers_);
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}
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const Headers::value_type *
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Downstream::get_request_header(const std::string &name) const {
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return get_header_linear(request_headers_, name);
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}
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void Downstream::add_request_header(std::string name, std::string value) {
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add_header(request_header_key_prev_, request_headers_sum_, request_headers_,
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std::move(name), std::move(value));
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}
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void Downstream::set_last_request_header_value(const char *data, size_t len) {
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set_last_header_value(request_header_key_prev_, request_headers_sum_,
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request_headers_, data, len);
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}
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void Downstream::add_request_header(std::string name, std::string value,
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int16_t token) {
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http2::index_header(request_hdidx_, token, request_headers_.size());
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request_headers_sum_ += name.size() + value.size();
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request_headers_.emplace_back(std::move(name), std::move(value), false,
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token);
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}
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void Downstream::add_request_header(const uint8_t *name, size_t namelen,
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const uint8_t *value, size_t valuelen,
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bool no_index, int16_t token) {
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http2::index_header(request_hdidx_, token, request_headers_.size());
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request_headers_sum_ += namelen + valuelen;
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http2::add_header(request_headers_, name, namelen, value, valuelen, no_index,
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token);
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}
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bool Downstream::get_request_header_key_prev() const {
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return request_header_key_prev_;
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}
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void Downstream::append_last_request_header_key(const char *data, size_t len) {
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append_last_header_key(request_header_key_prev_, request_headers_sum_,
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request_headers_, data, len);
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}
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void Downstream::append_last_request_header_value(const char *data,
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size_t len) {
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append_last_header_value(request_header_key_prev_, request_headers_sum_,
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request_headers_, data, len);
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}
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void Downstream::clear_request_headers() {
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Headers().swap(request_headers_);
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http2::init_hdidx(request_hdidx_);
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}
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size_t Downstream::get_request_headers_sum() const {
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return request_headers_sum_;
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}
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void Downstream::add_request_trailer(const uint8_t *name, size_t namelen,
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const uint8_t *value, size_t valuelen,
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bool no_index, int16_t token) {
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// we never index trailer part. Header size limit should be applied
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// to all request header fields combined.
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request_headers_sum_ += namelen + valuelen;
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http2::add_header(request_trailers_, name, namelen, value, valuelen, no_index,
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-1);
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}
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const Headers &Downstream::get_request_trailers() const {
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return request_trailers_;
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}
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void Downstream::add_request_trailer(std::string name, std::string value) {
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add_header(request_trailer_key_prev_, request_headers_sum_, request_trailers_,
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std::move(name), std::move(value));
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}
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void Downstream::set_last_request_trailer_value(const char *data, size_t len) {
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set_last_header_value(request_trailer_key_prev_, request_headers_sum_,
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request_trailers_, data, len);
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}
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bool Downstream::get_request_trailer_key_prev() const {
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return request_trailer_key_prev_;
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}
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void Downstream::append_last_request_trailer_key(const char *data, size_t len) {
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append_last_header_key(request_trailer_key_prev_, request_headers_sum_,
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request_trailers_, data, len);
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}
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void Downstream::append_last_request_trailer_value(const char *data,
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size_t len) {
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append_last_header_value(request_trailer_key_prev_, request_headers_sum_,
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request_trailers_, data, len);
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}
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void Downstream::set_request_method(std::string method) {
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request_method_ = std::move(method);
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}
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const std::string &Downstream::get_request_method() const {
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return request_method_;
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}
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void Downstream::set_request_path(std::string path) {
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request_path_ = std::move(path);
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}
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void Downstream::append_request_path(const char *data, size_t len) {
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request_path_.append(data, len);
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}
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const std::string &Downstream::get_request_path() const {
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return request_path_;
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}
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void Downstream::set_request_start_time(
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std::chrono::high_resolution_clock::time_point time) {
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request_start_time_ = std::move(time);
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}
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const std::chrono::high_resolution_clock::time_point &
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Downstream::get_request_start_time() const {
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return request_start_time_;
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}
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const std::string &Downstream::get_request_http2_scheme() const {
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return request_http2_scheme_;
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}
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void Downstream::set_request_http2_scheme(std::string scheme) {
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request_http2_scheme_ = std::move(scheme);
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}
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|
|
const std::string &Downstream::get_request_http2_authority() const {
|
|
return request_http2_authority_;
|
|
}
|
|
|
|
void Downstream::set_request_http2_authority(std::string authority) {
|
|
request_http2_authority_ = std::move(authority);
|
|
}
|
|
|
|
void Downstream::set_request_major(int major) { request_major_ = major; }
|
|
|
|
void Downstream::set_request_minor(int minor) { request_minor_ = minor; }
|
|
|
|
int Downstream::get_request_major() const { return request_major_; }
|
|
|
|
int Downstream::get_request_minor() const { return request_minor_; }
|
|
|
|
void Downstream::reset_upstream(Upstream *upstream) {
|
|
upstream_ = upstream;
|
|
if (dconn_) {
|
|
dconn_->on_upstream_change(upstream);
|
|
}
|
|
}
|
|
|
|
Upstream *Downstream::get_upstream() const { return upstream_; }
|
|
|
|
void Downstream::set_stream_id(int32_t stream_id) { stream_id_ = stream_id; }
|
|
|
|
int32_t Downstream::get_stream_id() const { return stream_id_; }
|
|
|
|
void Downstream::set_request_state(int state) { request_state_ = state; }
|
|
|
|
int Downstream::get_request_state() const { return request_state_; }
|
|
|
|
bool Downstream::get_chunked_request() const { return chunked_request_; }
|
|
|
|
void Downstream::set_chunked_request(bool f) { chunked_request_ = f; }
|
|
|
|
bool Downstream::get_request_connection_close() const {
|
|
return request_connection_close_;
|
|
}
|
|
|
|
void Downstream::set_request_connection_close(bool f) {
|
|
request_connection_close_ = f;
|
|
}
|
|
|
|
bool Downstream::get_request_http2_expect_body() const {
|
|
return request_http2_expect_body_;
|
|
}
|
|
|
|
void Downstream::set_request_http2_expect_body(bool f) {
|
|
request_http2_expect_body_ = f;
|
|
}
|
|
|
|
bool Downstream::request_buf_full() {
|
|
if (dconn_) {
|
|
return request_buf_.rleft() >= get_config()->downstream_request_buffer_size;
|
|
} else {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
DefaultMemchunks *Downstream::get_request_buf() { return &request_buf_; }
|
|
|
|
// Call this function after this object is attached to
|
|
// Downstream. Otherwise, the program will crash.
|
|
int Downstream::push_request_headers() {
|
|
if (!dconn_) {
|
|
DLOG(INFO, this) << "dconn_ is NULL";
|
|
return -1;
|
|
}
|
|
return dconn_->push_request_headers();
|
|
}
|
|
|
|
int Downstream::push_upload_data_chunk(const uint8_t *data, size_t datalen) {
|
|
// Assumes that request headers have already been pushed to output
|
|
// buffer using push_request_headers().
|
|
if (!dconn_) {
|
|
DLOG(INFO, this) << "dconn_ is NULL";
|
|
return -1;
|
|
}
|
|
request_bodylen_ += datalen;
|
|
if (dconn_->push_upload_data_chunk(data, datalen) != 0) {
|
|
return -1;
|
|
}
|
|
|
|
request_datalen_ += datalen;
|
|
|
|
return 0;
|
|
}
|
|
|
|
int Downstream::end_upload_data() {
|
|
if (!dconn_) {
|
|
DLOG(INFO, this) << "dconn_ is NULL";
|
|
return -1;
|
|
}
|
|
return dconn_->end_upload_data();
|
|
}
|
|
|
|
const Headers &Downstream::get_response_headers() const {
|
|
return response_headers_;
|
|
}
|
|
|
|
int Downstream::index_response_headers() {
|
|
return index_headers(response_hdidx_, response_headers_,
|
|
response_content_length_);
|
|
}
|
|
|
|
const Headers::value_type *
|
|
Downstream::get_response_header(int16_t token) const {
|
|
return http2::get_header(response_hdidx_, token, response_headers_);
|
|
}
|
|
|
|
void Downstream::rewrite_location_response_header(
|
|
const std::string &upstream_scheme) {
|
|
auto hd =
|
|
http2::get_header(response_hdidx_, http2::HD_LOCATION, response_headers_);
|
|
if (!hd) {
|
|
return;
|
|
}
|
|
http_parser_url u;
|
|
memset(&u, 0, sizeof(u));
|
|
int rv =
|
|
http_parser_parse_url((*hd).value.c_str(), (*hd).value.size(), 0, &u);
|
|
if (rv != 0) {
|
|
return;
|
|
}
|
|
std::string new_uri;
|
|
if (get_config()->no_host_rewrite || request_method_ == "CONNECT") {
|
|
if (!request_http2_authority_.empty()) {
|
|
new_uri = http2::rewrite_location_uri(
|
|
(*hd).value, u, request_http2_authority_, request_http2_authority_,
|
|
upstream_scheme);
|
|
}
|
|
if (new_uri.empty()) {
|
|
auto host = get_request_header(http2::HD_HOST);
|
|
if (host) {
|
|
new_uri = http2::rewrite_location_uri((*hd).value, u, (*host).value,
|
|
(*host).value, upstream_scheme);
|
|
} else if (!request_downstream_host_.empty()) {
|
|
new_uri = http2::rewrite_location_uri(
|
|
(*hd).value, u, request_downstream_host_, "", upstream_scheme);
|
|
} else {
|
|
return;
|
|
}
|
|
}
|
|
} else {
|
|
if (request_downstream_host_.empty()) {
|
|
return;
|
|
}
|
|
if (!request_http2_authority_.empty()) {
|
|
new_uri = http2::rewrite_location_uri(
|
|
(*hd).value, u, request_downstream_host_, request_http2_authority_,
|
|
upstream_scheme);
|
|
} else {
|
|
auto host = get_request_header(http2::HD_HOST);
|
|
if (host) {
|
|
new_uri = http2::rewrite_location_uri((*hd).value, u,
|
|
request_downstream_host_,
|
|
(*host).value, upstream_scheme);
|
|
} else {
|
|
new_uri = http2::rewrite_location_uri(
|
|
(*hd).value, u, request_downstream_host_, "", upstream_scheme);
|
|
}
|
|
}
|
|
}
|
|
if (!new_uri.empty()) {
|
|
auto idx = response_hdidx_[http2::HD_LOCATION];
|
|
response_headers_[idx].value = std::move(new_uri);
|
|
}
|
|
}
|
|
|
|
void Downstream::add_response_header(std::string name, std::string value) {
|
|
add_header(response_header_key_prev_, response_headers_sum_,
|
|
response_headers_, std::move(name), std::move(value));
|
|
}
|
|
|
|
void Downstream::set_last_response_header_value(const char *data, size_t len) {
|
|
set_last_header_value(response_header_key_prev_, response_headers_sum_,
|
|
response_headers_, data, len);
|
|
}
|
|
|
|
void Downstream::add_response_header(std::string name, std::string value,
|
|
int16_t token) {
|
|
http2::index_header(response_hdidx_, token, response_headers_.size());
|
|
response_headers_sum_ += name.size() + value.size();
|
|
response_headers_.emplace_back(std::move(name), std::move(value), false,
|
|
token);
|
|
}
|
|
|
|
void Downstream::add_response_header(const uint8_t *name, size_t namelen,
|
|
const uint8_t *value, size_t valuelen,
|
|
bool no_index, int16_t token) {
|
|
http2::index_header(response_hdidx_, token, response_headers_.size());
|
|
response_headers_sum_ += namelen + valuelen;
|
|
http2::add_header(response_headers_, name, namelen, value, valuelen, no_index,
|
|
token);
|
|
}
|
|
|
|
bool Downstream::get_response_header_key_prev() const {
|
|
return response_header_key_prev_;
|
|
}
|
|
|
|
void Downstream::append_last_response_header_key(const char *data, size_t len) {
|
|
append_last_header_key(response_header_key_prev_, response_headers_sum_,
|
|
response_headers_, data, len);
|
|
}
|
|
|
|
void Downstream::append_last_response_header_value(const char *data,
|
|
size_t len) {
|
|
append_last_header_value(response_header_key_prev_, response_headers_sum_,
|
|
response_headers_, data, len);
|
|
}
|
|
|
|
void Downstream::clear_response_headers() {
|
|
Headers().swap(response_headers_);
|
|
http2::init_hdidx(response_hdidx_);
|
|
}
|
|
|
|
size_t Downstream::get_response_headers_sum() const {
|
|
return response_headers_sum_;
|
|
}
|
|
|
|
const Headers &Downstream::get_response_trailers() const {
|
|
return response_trailers_;
|
|
}
|
|
|
|
void Downstream::add_response_trailer(const uint8_t *name, size_t namelen,
|
|
const uint8_t *value, size_t valuelen,
|
|
bool no_index, int16_t token) {
|
|
response_headers_sum_ += namelen + valuelen;
|
|
http2::add_header(response_trailers_, name, namelen, value, valuelen,
|
|
no_index, -1);
|
|
}
|
|
|
|
unsigned int Downstream::get_response_http_status() const {
|
|
return response_http_status_;
|
|
}
|
|
|
|
void Downstream::add_response_trailer(std::string name, std::string value) {
|
|
add_header(response_trailer_key_prev_, response_headers_sum_,
|
|
response_trailers_, std::move(name), std::move(value));
|
|
}
|
|
|
|
void Downstream::set_last_response_trailer_value(const char *data, size_t len) {
|
|
set_last_header_value(response_trailer_key_prev_, response_headers_sum_,
|
|
response_trailers_, data, len);
|
|
}
|
|
|
|
bool Downstream::get_response_trailer_key_prev() const {
|
|
return response_trailer_key_prev_;
|
|
}
|
|
|
|
void Downstream::append_last_response_trailer_key(const char *data,
|
|
size_t len) {
|
|
append_last_header_key(response_trailer_key_prev_, response_headers_sum_,
|
|
response_trailers_, data, len);
|
|
}
|
|
|
|
void Downstream::append_last_response_trailer_value(const char *data,
|
|
size_t len) {
|
|
append_last_header_value(response_trailer_key_prev_, response_headers_sum_,
|
|
response_trailers_, data, len);
|
|
}
|
|
|
|
void Downstream::set_response_http_status(unsigned int status) {
|
|
response_http_status_ = status;
|
|
}
|
|
|
|
void Downstream::set_response_major(int major) { response_major_ = major; }
|
|
|
|
void Downstream::set_response_minor(int minor) { response_minor_ = minor; }
|
|
|
|
int Downstream::get_response_major() const { return response_major_; }
|
|
|
|
int Downstream::get_response_minor() const { return response_minor_; }
|
|
|
|
int Downstream::get_response_version() const {
|
|
return response_major_ * 100 + response_minor_;
|
|
}
|
|
|
|
bool Downstream::get_chunked_response() const { return chunked_response_; }
|
|
|
|
void Downstream::set_chunked_response(bool f) { chunked_response_ = f; }
|
|
|
|
bool Downstream::get_response_connection_close() const {
|
|
return response_connection_close_;
|
|
}
|
|
|
|
void Downstream::set_response_connection_close(bool f) {
|
|
response_connection_close_ = f;
|
|
}
|
|
|
|
int Downstream::on_read() {
|
|
if (!dconn_) {
|
|
DLOG(INFO, this) << "dconn_ is NULL";
|
|
return -1;
|
|
}
|
|
return dconn_->on_read();
|
|
}
|
|
|
|
int Downstream::change_priority(int32_t pri) {
|
|
if (!dconn_) {
|
|
DLOG(INFO, this) << "dconn_ is NULL";
|
|
return -1;
|
|
}
|
|
return dconn_->on_priority_change(pri);
|
|
}
|
|
|
|
void Downstream::set_response_state(int state) { response_state_ = state; }
|
|
|
|
int Downstream::get_response_state() const { return response_state_; }
|
|
|
|
DefaultMemchunks *Downstream::get_response_buf() { return &response_buf_; }
|
|
|
|
bool Downstream::response_buf_full() {
|
|
if (dconn_) {
|
|
return response_buf_.rleft() >=
|
|
get_config()->downstream_response_buffer_size;
|
|
} else {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
void Downstream::add_response_bodylen(size_t amount) {
|
|
response_bodylen_ += amount;
|
|
}
|
|
|
|
int64_t Downstream::get_response_bodylen() const { return response_bodylen_; }
|
|
|
|
void Downstream::add_response_sent_bodylen(size_t amount) {
|
|
response_sent_bodylen_ += amount;
|
|
}
|
|
|
|
int64_t Downstream::get_response_sent_bodylen() const {
|
|
return response_sent_bodylen_;
|
|
}
|
|
|
|
int64_t Downstream::get_response_content_length() const {
|
|
return response_content_length_;
|
|
}
|
|
|
|
void Downstream::set_response_content_length(int64_t len) {
|
|
response_content_length_ = len;
|
|
}
|
|
|
|
int64_t Downstream::get_request_content_length() const {
|
|
return request_content_length_;
|
|
}
|
|
|
|
void Downstream::set_request_content_length(int64_t len) {
|
|
request_content_length_ = len;
|
|
}
|
|
|
|
bool Downstream::validate_request_bodylen() const {
|
|
if (request_content_length_ == -1) {
|
|
return true;
|
|
}
|
|
|
|
if (request_content_length_ != request_bodylen_) {
|
|
if (LOG_ENABLED(INFO)) {
|
|
DLOG(INFO, this) << "request invalid bodylen: content-length="
|
|
<< request_content_length_
|
|
<< ", received=" << request_bodylen_;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
bool Downstream::validate_response_bodylen() const {
|
|
if (!expect_response_body() || response_content_length_ == -1) {
|
|
return true;
|
|
}
|
|
|
|
if (response_content_length_ != response_bodylen_) {
|
|
if (LOG_ENABLED(INFO)) {
|
|
DLOG(INFO, this) << "response invalid bodylen: content-length="
|
|
<< response_content_length_
|
|
<< ", received=" << response_bodylen_;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
void Downstream::set_priority(int32_t pri) { priority_ = pri; }
|
|
|
|
int32_t Downstream::get_priority() const { return priority_; }
|
|
|
|
void Downstream::check_upgrade_fulfilled() {
|
|
if (request_method_ == "CONNECT") {
|
|
upgraded_ = 200 <= response_http_status_ && response_http_status_ < 300;
|
|
|
|
return;
|
|
}
|
|
|
|
if (response_http_status_ == 101) {
|
|
// TODO Do more strict checking for upgrade headers
|
|
upgraded_ = upgrade_request_;
|
|
|
|
return;
|
|
}
|
|
}
|
|
|
|
void Downstream::inspect_http2_request() {
|
|
if (request_method_ == "CONNECT") {
|
|
upgrade_request_ = true;
|
|
}
|
|
}
|
|
|
|
void Downstream::inspect_http1_request() {
|
|
if (request_method_ == "CONNECT") {
|
|
upgrade_request_ = true;
|
|
}
|
|
|
|
if (!upgrade_request_) {
|
|
auto idx = request_hdidx_[http2::HD_UPGRADE];
|
|
if (idx != -1) {
|
|
upgrade_request_ = true;
|
|
|
|
auto &val = request_headers_[idx].value;
|
|
// TODO Perform more strict checking for upgrade headers
|
|
if (util::streq_l(NGHTTP2_CLEARTEXT_PROTO_VERSION_ID, val.c_str(),
|
|
val.size())) {
|
|
http2_upgrade_seen_ = true;
|
|
}
|
|
}
|
|
}
|
|
auto idx = request_hdidx_[http2::HD_TRANSFER_ENCODING];
|
|
if (idx != -1) {
|
|
request_content_length_ = -1;
|
|
if (util::strifind(request_headers_[idx].value.c_str(), "chunked")) {
|
|
chunked_request_ = true;
|
|
}
|
|
}
|
|
}
|
|
|
|
void Downstream::inspect_http1_response() {
|
|
auto idx = response_hdidx_[http2::HD_TRANSFER_ENCODING];
|
|
if (idx != -1) {
|
|
response_content_length_ = -1;
|
|
if (util::strifind(response_headers_[idx].value.c_str(), "chunked")) {
|
|
chunked_response_ = true;
|
|
}
|
|
}
|
|
}
|
|
|
|
void Downstream::reset_response() {
|
|
response_http_status_ = 0;
|
|
response_major_ = 1;
|
|
response_minor_ = 1;
|
|
}
|
|
|
|
bool Downstream::get_non_final_response() const {
|
|
return response_http_status_ / 100 == 1;
|
|
}
|
|
|
|
bool Downstream::get_upgraded() const { return upgraded_; }
|
|
|
|
bool Downstream::get_upgrade_request() const { return upgrade_request_; }
|
|
|
|
bool Downstream::get_http2_upgrade_request() const {
|
|
return request_bodylen_ == 0 && http2_upgrade_seen_ &&
|
|
request_hdidx_[http2::HD_HTTP2_SETTINGS] != -1;
|
|
}
|
|
|
|
namespace {
|
|
const std::string EMPTY;
|
|
} // namespace
|
|
|
|
const std::string &Downstream::get_http2_settings() const {
|
|
auto idx = request_hdidx_[http2::HD_HTTP2_SETTINGS];
|
|
if (idx == -1) {
|
|
return EMPTY;
|
|
}
|
|
return request_headers_[idx].value;
|
|
}
|
|
|
|
void Downstream::set_downstream_stream_id(int32_t stream_id) {
|
|
downstream_stream_id_ = stream_id;
|
|
}
|
|
|
|
int32_t Downstream::get_downstream_stream_id() const {
|
|
return downstream_stream_id_;
|
|
}
|
|
|
|
uint32_t Downstream::get_response_rst_stream_error_code() const {
|
|
return response_rst_stream_error_code_;
|
|
}
|
|
|
|
void Downstream::set_response_rst_stream_error_code(uint32_t error_code) {
|
|
response_rst_stream_error_code_ = error_code;
|
|
}
|
|
|
|
void Downstream::set_expect_final_response(bool f) {
|
|
expect_final_response_ = f;
|
|
}
|
|
|
|
bool Downstream::get_expect_final_response() const {
|
|
return expect_final_response_;
|
|
}
|
|
|
|
size_t Downstream::get_request_datalen() const { return request_datalen_; }
|
|
|
|
void Downstream::dec_request_datalen(size_t len) {
|
|
assert(request_datalen_ >= len);
|
|
request_datalen_ -= len;
|
|
}
|
|
|
|
void Downstream::reset_request_datalen() { request_datalen_ = 0; }
|
|
|
|
void Downstream::add_response_datalen(size_t len) { response_datalen_ += len; }
|
|
|
|
void Downstream::dec_response_datalen(size_t len) {
|
|
assert(response_datalen_ >= len);
|
|
response_datalen_ -= len;
|
|
}
|
|
|
|
size_t Downstream::get_response_datalen() const { return response_datalen_; }
|
|
|
|
void Downstream::reset_response_datalen() { response_datalen_ = 0; }
|
|
|
|
bool Downstream::expect_response_body() const {
|
|
return http2::expect_response_body(request_method_, response_http_status_);
|
|
}
|
|
|
|
namespace {
|
|
bool pseudo_header_allowed(const Headers &headers) {
|
|
if (headers.empty()) {
|
|
return true;
|
|
}
|
|
|
|
return headers.back().name.c_str()[0] == ':';
|
|
}
|
|
} // namespace
|
|
|
|
bool Downstream::request_pseudo_header_allowed(int16_t token) const {
|
|
if (!pseudo_header_allowed(request_headers_)) {
|
|
return false;
|
|
}
|
|
return http2::check_http2_request_pseudo_header(request_hdidx_, token);
|
|
}
|
|
|
|
bool Downstream::response_pseudo_header_allowed(int16_t token) const {
|
|
if (!pseudo_header_allowed(response_headers_)) {
|
|
return false;
|
|
}
|
|
return http2::check_http2_response_pseudo_header(response_hdidx_, token);
|
|
}
|
|
|
|
namespace {
|
|
void reset_timer(struct ev_loop *loop, ev_timer *w) { ev_timer_again(loop, w); }
|
|
} // namespace
|
|
|
|
namespace {
|
|
void try_reset_timer(struct ev_loop *loop, ev_timer *w) {
|
|
if (!ev_is_active(w)) {
|
|
return;
|
|
}
|
|
ev_timer_again(loop, w);
|
|
}
|
|
} // namespace
|
|
|
|
namespace {
|
|
void ensure_timer(struct ev_loop *loop, ev_timer *w) {
|
|
if (ev_is_active(w)) {
|
|
return;
|
|
}
|
|
ev_timer_again(loop, w);
|
|
}
|
|
} // namespace
|
|
|
|
namespace {
|
|
void disable_timer(struct ev_loop *loop, ev_timer *w) {
|
|
ev_timer_stop(loop, w);
|
|
}
|
|
} // namespace
|
|
|
|
void Downstream::reset_upstream_rtimer() {
|
|
if (get_config()->stream_read_timeout == 0.) {
|
|
return;
|
|
}
|
|
auto loop = upstream_->get_client_handler()->get_loop();
|
|
reset_timer(loop, &upstream_rtimer_);
|
|
}
|
|
|
|
void Downstream::reset_upstream_wtimer() {
|
|
auto loop = upstream_->get_client_handler()->get_loop();
|
|
if (get_config()->stream_write_timeout != 0.) {
|
|
reset_timer(loop, &upstream_wtimer_);
|
|
}
|
|
if (get_config()->stream_read_timeout != 0.) {
|
|
try_reset_timer(loop, &upstream_rtimer_);
|
|
}
|
|
}
|
|
|
|
void Downstream::ensure_upstream_wtimer() {
|
|
if (get_config()->stream_write_timeout == 0.) {
|
|
return;
|
|
}
|
|
auto loop = upstream_->get_client_handler()->get_loop();
|
|
ensure_timer(loop, &upstream_wtimer_);
|
|
}
|
|
|
|
void Downstream::disable_upstream_rtimer() {
|
|
if (get_config()->stream_read_timeout == 0.) {
|
|
return;
|
|
}
|
|
auto loop = upstream_->get_client_handler()->get_loop();
|
|
disable_timer(loop, &upstream_rtimer_);
|
|
}
|
|
|
|
void Downstream::disable_upstream_wtimer() {
|
|
if (get_config()->stream_write_timeout == 0.) {
|
|
return;
|
|
}
|
|
auto loop = upstream_->get_client_handler()->get_loop();
|
|
disable_timer(loop, &upstream_wtimer_);
|
|
}
|
|
|
|
void Downstream::reset_downstream_rtimer() {
|
|
if (get_config()->stream_read_timeout == 0.) {
|
|
return;
|
|
}
|
|
auto loop = upstream_->get_client_handler()->get_loop();
|
|
reset_timer(loop, &downstream_rtimer_);
|
|
}
|
|
|
|
void Downstream::reset_downstream_wtimer() {
|
|
auto loop = upstream_->get_client_handler()->get_loop();
|
|
if (get_config()->stream_write_timeout != 0.) {
|
|
reset_timer(loop, &downstream_wtimer_);
|
|
}
|
|
if (get_config()->stream_read_timeout != 0.) {
|
|
try_reset_timer(loop, &downstream_rtimer_);
|
|
}
|
|
}
|
|
|
|
void Downstream::ensure_downstream_wtimer() {
|
|
if (get_config()->stream_write_timeout == 0.) {
|
|
return;
|
|
}
|
|
auto loop = upstream_->get_client_handler()->get_loop();
|
|
ensure_timer(loop, &downstream_wtimer_);
|
|
}
|
|
|
|
void Downstream::disable_downstream_rtimer() {
|
|
if (get_config()->stream_read_timeout == 0.) {
|
|
return;
|
|
}
|
|
auto loop = upstream_->get_client_handler()->get_loop();
|
|
disable_timer(loop, &downstream_rtimer_);
|
|
}
|
|
|
|
void Downstream::disable_downstream_wtimer() {
|
|
if (get_config()->stream_write_timeout == 0.) {
|
|
return;
|
|
}
|
|
auto loop = upstream_->get_client_handler()->get_loop();
|
|
disable_timer(loop, &downstream_wtimer_);
|
|
}
|
|
|
|
bool Downstream::accesslog_ready() const { return response_http_status_ > 0; }
|
|
|
|
void Downstream::add_retry() { ++num_retry_; }
|
|
|
|
bool Downstream::no_more_retry() const { return num_retry_ > 5; }
|
|
|
|
void Downstream::set_request_downstream_host(std::string host) {
|
|
request_downstream_host_ = std::move(host);
|
|
}
|
|
|
|
void Downstream::set_request_pending(bool f) { request_pending_ = f; }
|
|
|
|
bool Downstream::get_request_pending() const { return request_pending_; }
|
|
|
|
bool Downstream::request_submission_ready() const {
|
|
return (request_state_ == Downstream::HEADER_COMPLETE ||
|
|
request_state_ == Downstream::MSG_COMPLETE) &&
|
|
request_pending_ && response_state_ == Downstream::INITIAL;
|
|
}
|
|
|
|
int Downstream::get_dispatch_state() const { return dispatch_state_; }
|
|
|
|
void Downstream::set_dispatch_state(int s) { dispatch_state_ = s; }
|
|
|
|
void Downstream::attach_blocked_link(BlockedLink *l) {
|
|
assert(!blocked_link_);
|
|
|
|
l->downstream = this;
|
|
blocked_link_ = l;
|
|
}
|
|
|
|
void Downstream::detach_blocked_link(BlockedLink *l) {
|
|
assert(blocked_link_);
|
|
assert(l->downstream == this);
|
|
|
|
l->downstream = nullptr;
|
|
blocked_link_ = nullptr;
|
|
}
|
|
|
|
} // namespace shrpx
|