1 files changed, 91 insertions, 0 deletions
diff --git a/src/rgw/rgw_fcgi.cc b/src/rgw/rgw_fcgi.cc
new file mode 100644
index 000000000..2a0e9f917
--- /dev/null
+++ b/src/rgw/rgw_fcgi.cc
@@ -0,0 +1,91 @@
+// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
+// vim: ts=8 sw=2 smarttab ft=cpp
+
+#include "rgw_fcgi.h"
+#include "acconfig.h"
+
+size_t RGWFCGX::write_data(const char* const buf, const size_t len)
+{
+ /* According to the documentation of FCGX_PutStr if there is no error
+ * (signalised by negative return value), then always ret == len. */
+ const auto ret = FCGX_PutStr(buf, len, fcgx->out);
+  if (ret < 0) {
+    throw rgw::io::Exception(-ret, std::system_category());
+  }
+  return ret;
+}
+
+size_t RGWFCGX::read_data(char* const buf, const size_t len)
+{
+  const auto ret = FCGX_GetStr(buf, len, fcgx->in);
+  if (ret < 0) {
+    throw rgw::io::Exception(-ret, std::system_category());
+  }
+  return ret;
+}
+
+void RGWFCGX::flush()
+{
+  txbuf.pubsync();
+  FCGX_FFlush(fcgx->out);
+}
+
+int RGWFCGX::init_env(CephContext* const cct)
+{
+  env.init(cct, (char **)fcgx->envp);
+  return 0;
+}
+
+size_t RGWFCGX::send_status(const int status, const char* const status_name)
+{
+  static constexpr size_t STATUS_BUF_SIZE = 128;
+
+  char statusbuf[STATUS_BUF_SIZE];
+  const auto statuslen = snprintf(statusbuf, sizeof(statusbuf),
+                                  "Status: %d %s\r\n", status, status_name);
+
+  return txbuf.sputn(statusbuf, statuslen);
+}
+
+size_t RGWFCGX::send_100_continue()
+{
+  const auto sent = send_status(100, "Continue");
+  flush();
+  return sent;
+}
+
+size_t RGWFCGX::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 RGWFCGX::send_content_length(const 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);
+}
+
+size_t RGWFCGX::complete_header()
+{
+  static constexpr char HEADER_END[] = "\r\n";
+  const size_t sent = txbuf.sputn(HEADER_END, sizeof(HEADER_END) - 1);
+
+  flush();
+  return sent;
+}