--- /dev/null
+// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
+// vim: ts=8 sw=2 smarttab
+
+#include <string.h>
+
+#include <boost/algorithm/string/predicate.hpp>
+#include <boost/utility/string_ref.hpp>
+
+#include "civetweb/civetweb.h"
+#include "rgw_civetweb.h"
+
+
+#define dout_subsys ceph_subsys_rgw
+
+size_t RGWCivetWeb::write_data(const char *buf, const size_t len)
+{
+ auto to_sent = len;
+ while (to_sent) {
+ const int ret = mg_write(conn, buf, len);
+ if (ret < 0 || ! ret) {
+ /* According to the documentation of mg_write() it always returns -1 on
+ * error. The details aren't available, so we will just throw EIO. Same
+ * goes to 0 that is associated with writing to a closed connection. */
+ throw rgw::io::Exception(EIO, std::system_category());
+ } else {
+ to_sent -= static_cast<size_t>(ret);
+ }
+ }
+ return len;
+}
+
+RGWCivetWeb::RGWCivetWeb(mg_connection* const conn)
+ : conn(conn),
+ explicit_keepalive(false),
+ explicit_conn_close(false),
+ txbuf(*this)
+{
+ sockaddr *lsa = mg_get_local_addr(conn);
+ switch(lsa->sa_family) {
+ case AF_INET:
+ port = ntohs(((struct sockaddr_in*)lsa)->sin_port);
+ break;
+ case AF_INET6:
+ port = ntohs(((struct sockaddr_in6*)lsa)->sin6_port);
+ break;
+ default:
+ port = -1;
+ }
+}
+
+size_t RGWCivetWeb::read_data(char *buf, size_t len)
+{
+ const int ret = mg_read(conn, buf, len);
+ if (ret < 0) {
+ throw rgw::io::Exception(EIO, std::system_category());
+ }
+ return ret;
+}
+
+void RGWCivetWeb::flush()
+{
+ txbuf.pubsync();
+}
+
+size_t RGWCivetWeb::complete_request()
+{
+ return 0;
+}
+
+void RGWCivetWeb::init_env(CephContext *cct)
+{
+ env.init(cct);
+ const struct mg_request_info* info = mg_get_request_info(conn);
+
+ if (! info) {
+ return;
+ }
+
+ for (int i = 0; i < info->num_headers; i++) {
+ const struct mg_request_info::mg_header* header = &info->http_headers[i];
+ const boost::string_ref name(header->name);
+ const auto& value = header->value;
+
+ if (boost::algorithm::iequals(name, "content-length")) {
+ env.set("CONTENT_LENGTH", value);
+ continue;
+ }
+ if (boost::algorithm::iequals(name, "content-type")) {
+ env.set("CONTENT_TYPE", value);
+ continue;
+ }
+ if (boost::algorithm::iequals(name, "connection")) {
+ explicit_keepalive = boost::algorithm::iequals(value, "keep-alive");
+ explicit_conn_close = boost::algorithm::iequals(value, "close");
+ }
+
+ static const boost::string_ref 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 {
+ *dest = std::toupper(*src);
+ }
+ }
+ *dest = '\0';
+
+ env.set(buf, value);
+ }
+
+ env.set("REQUEST_METHOD", info->request_method);
+ env.set("REQUEST_URI", info->request_uri); // get the full uri, we anyway handle abs uris later
+ env.set("SCRIPT_URI", info->uri); /* FIXME */
+ if (info->query_string) {
+ env.set("QUERY_STRING", info->query_string);
+ }
+ if (info->remote_user) {
+ env.set("REMOTE_USER", info->remote_user);
+ }
+
+ if (port <= 0)
+ lderr(cct) << "init_env: bug: invalid port number" << dendl;
+ char port_buf[16];
+ snprintf(port_buf, sizeof(port_buf), "%d", port);
+ env.set("SERVER_PORT", port_buf);
+ if (info->is_ssl) {
+ env.set("SERVER_PORT_SECURE", port_buf);
+ }
+}
+
+size_t RGWCivetWeb::send_status(int status, const char *status_name)
+{
+ mg_set_http_status(conn, status);
+
+ 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 RGWCivetWeb::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();
+ return sent;
+}
+
+size_t RGWCivetWeb::send_header(const boost::string_ref& name,
+ const boost::string_ref& 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 RGWCivetWeb::dump_date_header()
+{
+ char timestr[TIME_BUF_SIZE];
+
+ const time_t gtime = time(nullptr);
+ struct tm result;
+ struct tm const* const tmp = gmtime_r(>ime, &result);
+
+ if (nullptr == tmp) {
+ return 0;
+ }
+
+ if (! strftime(timestr, sizeof(timestr),
+ "Date: %a, %d %b %Y %H:%M:%S %Z\r\n", tmp)) {
+ return 0;
+ }
+
+ return txbuf.sputn(timestr, strlen(timestr));
+}
+
+size_t RGWCivetWeb::complete_header()
+{
+ size_t sent = dump_date_header();
+
+ if (explicit_keepalive) {
+ constexpr char CONN_KEEP_ALIVE[] = "Connection: Keep-Alive\r\n";
+ sent += txbuf.sputn(CONN_KEEP_ALIVE, sizeof(CONN_KEEP_ALIVE) - 1);
+ } else if (explicit_conn_close) {
+ constexpr char CONN_KEEP_CLOSE[] = "Connection: close\r\n";
+ sent += txbuf.sputn(CONN_KEEP_CLOSE, sizeof(CONN_KEEP_CLOSE) - 1);
+ }
+
+ static constexpr char HEADER_END[] = "\r\n";
+ sent += txbuf.sputn(HEADER_END, sizeof(HEADER_END) - 1);
+
+ flush();
+ return sent;
+}
+
+size_t RGWCivetWeb::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);
+}
Code Review / stor4nfv.git / blobdiff