Rename to .cc, fix Makefile bugs, add example_clock

2019-04-28 21:30:15 +00:00
parent b444bc5964
commit d712b0c687
13 changed files with 53 additions and 5 deletions
--- a/fastcgi_conn.cc
+++ b/fastcgi_conn.cc
@@ -0,0 +1,96 @@
+#include <arpa/inet.h>
+#include <netinet/in.h>
+#include <sys/uio.h>
+
+#include "fastcgi_conn.h"
+
+#include "fastcgi_parse.h"
+#include "fastcgi_request.h"
+
+FastCGIConn::FastCGIConn(int sock, const sockaddr_in6& client_addr, const std::function<void(std::unique_ptr<FastCGIRequest>)>& callback)
+		: sock_(sock),
+		  callback_(callback),
+		  buf_(sock, fastcgi_max_record_len) {
+	char client_addr_str[INET6_ADDRSTRLEN];
+	PCHECK(inet_ntop(AF_INET6, &client_addr.sin6_addr, client_addr_str, sizeof(client_addr_str)));
+
+	LOG(INFO) << "new connection: [" << client_addr_str << "]:" << ntohs(client_addr.sin6_port);
+}
+
+FastCGIConn::~FastCGIConn() {
+	PCHECK(close(sock_) == 0);
+	LOG(INFO) << "connection closed (handled " << requests_ << " requests)";
+}
+
+void FastCGIConn::Write(const std::vector<iovec>& vecs) {
+	size_t total_size = 0;
+	for (const auto& vec : vecs) {
+		total_size += vec.iov_len;
+	}
+	CHECK_EQ(writev(sock_, vecs.data(), vecs.size()), total_size);
+}
+
+void FastCGIConn::Serve() {
+	while (true) {
+		const auto *header = buf_.ReadObj<FastCGIHeader>();
+		if (!header) {
+			break;
+		}
+
+		CHECK_EQ(header->version, 1);
+		if (!buf_.BufferAtLeast(header->ContentLength())) {
+			return;
+		}
+
+		switch (header->type) {
+		  case 1:
+		  	{
+				CHECK_EQ(header->ContentLength(), sizeof(FastCGIBeginRequest));
+				const auto *begin_request = CHECK_NOTNULL(buf_.ReadObj<FastCGIBeginRequest>());
+				CHECK_EQ(begin_request->Role(), 1);
+
+				request_.reset(new FastCGIRequest(header->RequestId(), this));
+			}
+			break;
+
+		  case 4:
+		    {
+				CHECK_EQ(header->RequestId(), request_->RequestId());
+				ConstBuffer param_buf(buf_.Read(header->ContentLength()), header->ContentLength());
+				while (param_buf.ReadMaxLen() > 0) {
+					const auto *param_header = param_buf.ReadObj<FastCGIParamHeader>();
+					std::string_view key(param_buf.Read(param_header->key_length), param_header->key_length);
+					std::string_view value(param_buf.Read(param_header->value_length), param_header->value_length);
+					request_->AddParam(key, value);
+				}
+			}
+			break;
+
+		  case 5:
+		  	{
+				CHECK_EQ(header->RequestId(), request_->RequestId());
+				if (header->ContentLength() == 0) {
+					// Magic signal for completed request (mirrors the HTTP/1.1 protocol)
+					requests_++;
+					callback_(std::move(request_));
+				} else {
+					std::string_view in(buf_.Read(header->ContentLength()), header->ContentLength());
+					request_->AddIn(in);
+				}
+			}
+			break;
+
+		  default:
+			CHECK(false) << "unknown record type: " << header->type;
+			break;
+		}
+
+		if (!buf_.Discard(header->padding_length)) {
+			break;
+		}
+
+		buf_.Commit(); // we've acted on the bytes read so far
+	}
+
+	delete this;
+}