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// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
// vim: ts=8 sw=2 smarttab ft=cpp
#include <boost/algorithm/string/predicate.hpp>
#include <boost/asio/write.hpp>
#include "rgw_asio_client.h"
#include "rgw_perf_counters.h"
#define dout_context g_ceph_context
#define dout_subsys ceph_subsys_rgw
using namespace rgw::asio;
ClientIO::ClientIO(parser_type& parser, bool is_ssl,
const endpoint_type& local_endpoint,
const endpoint_type& remote_endpoint)
: parser(parser), is_ssl(is_ssl),
local_endpoint(local_endpoint),
remote_endpoint(remote_endpoint),
txbuf(*this)
{
}
ClientIO::~ClientIO() = default;
int ClientIO::init_env(CephContext *cct)
{
env.init(cct);
perfcounter->inc(l_rgw_qlen);
perfcounter->inc(l_rgw_qactive);
const auto& request = parser.get();
const auto& headers = request;
for (auto header = headers.begin(); header != headers.end(); ++header) {
const auto& field = header->name(); // enum type for known headers
const auto& name = header->name_string();
const auto& value = header->value();
if (field == beast::http::field::content_length) {
env.set("CONTENT_LENGTH", value.to_string());
continue;
}
if (field == beast::http::field::content_type) {
env.set("CONTENT_TYPE", value.to_string());
continue;
}
static const std::string_view HTTP_{"HTTP_"};
char buf[name.size() + HTTP_.size() + 1];
auto dest = std::copy(std::begin(HTTP_), std::end(HTTP_), buf);
for (auto src = name.begin(); src != name.end(); ++src, ++dest) {
if (*src == '-') {
*dest = '_';
} else if (*src == '_') {
*dest = '-';
} else {
*dest = std::toupper(*src);
}
}
*dest = '\0';
env.set(buf, value.to_string());
}
int major = request.version() / 10;
int minor = request.version() % 10;
env.set("HTTP_VERSION", std::to_string(major) + '.' + std::to_string(minor));
env.set("REQUEST_METHOD", request.method_string().to_string());
// split uri from query
auto uri = request.target();
auto pos = uri.find('?');
if (pos != uri.npos) {
auto query = uri.substr(pos + 1);
env.set("QUERY_STRING", query.to_string());
uri = uri.substr(0, pos);
}
env.set("SCRIPT_URI", uri.to_string());
env.set("REQUEST_URI", request.target().to_string());
char port_buf[16];
snprintf(port_buf, sizeof(port_buf), "%d", local_endpoint.port());
env.set("SERVER_PORT", port_buf);
if (is_ssl) {
env.set("SERVER_PORT_SECURE", port_buf);
}
env.set("REMOTE_ADDR", remote_endpoint.address().to_string());
// TODO: set REMOTE_USER if authenticated
return 0;
}
size_t ClientIO::complete_request()
{
perfcounter->inc(l_rgw_qlen, -1);
perfcounter->inc(l_rgw_qactive, -1);
return 0;
}
void ClientIO::flush()
{
txbuf.pubsync();
}
size_t ClientIO::send_status(int status, const char* status_name)
{
static constexpr size_t STATUS_BUF_SIZE = 128;
char statusbuf[STATUS_BUF_SIZE];
const auto statuslen = snprintf(statusbuf, sizeof(statusbuf),
"HTTP/1.1 %d %s\r\n", status, status_name);
return txbuf.sputn(statusbuf, statuslen);
}
size_t ClientIO::send_100_continue()
{
const char HTTTP_100_CONTINUE[] = "HTTP/1.1 100 CONTINUE\r\n\r\n";
const size_t sent = txbuf.sputn(HTTTP_100_CONTINUE,
sizeof(HTTTP_100_CONTINUE) - 1);
flush();
sent100continue = true;
return sent;
}
static constexpr size_t TIME_BUF_SIZE = 128;
static size_t dump_date_header(char (×tr)[TIME_BUF_SIZE])
{
const time_t gtime = time(nullptr);
struct tm result;
struct tm const * const tmp = gmtime_r(>ime, &result);
if (tmp == nullptr) {
return 0;
}
return strftime(timestr, sizeof(timestr),
"Date: %a, %d %b %Y %H:%M:%S %Z\r\n", tmp);
}
size_t ClientIO::complete_header()
{
size_t sent = 0;
char timestr[TIME_BUF_SIZE];
if (dump_date_header(timestr)) {
sent += txbuf.sputn(timestr, strlen(timestr));
}
if (parser.keep_alive()) {
constexpr char CONN_KEEP_ALIVE[] = "Connection: Keep-Alive\r\n";
sent += txbuf.sputn(CONN_KEEP_ALIVE, sizeof(CONN_KEEP_ALIVE) - 1);
} else {
constexpr char CONN_KEEP_CLOSE[] = "Connection: close\r\n";
sent += txbuf.sputn(CONN_KEEP_CLOSE, sizeof(CONN_KEEP_CLOSE) - 1);
}
constexpr char HEADER_END[] = "\r\n";
sent += txbuf.sputn(HEADER_END, sizeof(HEADER_END) - 1);
flush();
return sent;
}
size_t ClientIO::send_header(const std::string_view& name,
const std::string_view& value)
{
static constexpr char HEADER_SEP[] = ": ";
static constexpr char HEADER_END[] = "\r\n";
size_t sent = 0;
sent += txbuf.sputn(name.data(), name.length());
sent += txbuf.sputn(HEADER_SEP, sizeof(HEADER_SEP) - 1);
sent += txbuf.sputn(value.data(), value.length());
sent += txbuf.sputn(HEADER_END, sizeof(HEADER_END) - 1);
return sent;
}
size_t ClientIO::send_content_length(uint64_t len)
{
static constexpr size_t CONLEN_BUF_SIZE = 128;
char sizebuf[CONLEN_BUF_SIZE];
const auto sizelen = snprintf(sizebuf, sizeof(sizebuf),
"Content-Length: %" PRIu64 "\r\n", len);
return txbuf.sputn(sizebuf, sizelen);
}
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