X-Git-Url: https://git.sesse.net/?p=cubemap;a=blobdiff_plain;f=input.cpp;h=47c3c0193472d8cfa56747fd2461cdf5595632cd;hp=8307819437d687307d107b370f52e017d87be2fc;hb=9b565a9e6e66f076abb7266b2c2f015f585fa9cb;hpb=c1ad30c9e885b411b11a10e08ff2415260b1c02d

diff --git a/input.cpp b/input.cpp
index 8307819..47c3c01 100644
--- a/input.cpp
+++ b/input.cpp
@@ -22,6 +22,7 @@
 #include "server.h"
 #include "serverpool.h"
 #include "parse.h"
+#include "state.pb.h"
 
 using namespace std;
 
@@ -79,6 +80,39 @@ Input::Input(const string &stream_id, const string &url)
 {
 }
 
+Input::Input(const InputProto &serialized)
+	: state(State(serialized.state())),
+	  stream_id(serialized.stream_id()),
+	  url(serialized.url()),
+	  request(serialized.request()),
+	  request_bytes_sent(serialized.request_bytes_sent()),
+	  response(serialized.response()),
+	  http_header(serialized.http_header()),
+	  has_metacube_header(serialized.has_metacube_header()),
+	  sock(serialized.sock())
+{
+	pending_data.resize(serialized.pending_data().size());
+	memcpy(&pending_data[0], serialized.pending_data().data(), serialized.pending_data().size());
+
+	parse_url(url, &host, &port, &path);  // Don't care if it fails.
+}
+
+InputProto Input::serialize() const
+{
+	InputProto serialized;
+	serialized.set_state(state);
+	serialized.set_stream_id(stream_id);
+	serialized.set_url(url);
+	serialized.set_request(request);
+	serialized.set_request_bytes_sent(request_bytes_sent);
+	serialized.set_response(response);
+	serialized.set_http_header(http_header);
+	serialized.set_pending_data(string(pending_data.begin(), pending_data.end()));
+	serialized.set_has_metacube_header(has_metacube_header);
+	serialized.set_sock(sock);
+	return serialized;
+}
+
 void Input::run()
 {
 	should_stop = false;
@@ -144,6 +178,84 @@ int Input::lookup_and_connect(const string &host, const string &port)
 	freeaddrinfo(ai);
 	return -1;
 }
+	
+bool Input::parse_response(const std::string &request)
+{
+	vector<string> lines = split_lines(response);
+	if (lines.empty()) {
+		fprintf(stderr, "WARNING: Empty HTTP response from input.\n");
+		return false;
+	}
+
+	vector<string> first_line_tokens = split_tokens(lines[0]);
+	if (first_line_tokens.size() < 2) {
+		fprintf(stderr, "WARNING: Malformed response line '%s' from input.\n",
+		        lines[0].c_str());
+		return false;
+	}
+
+	int response = atoi(first_line_tokens[1].c_str());
+	if (response != 200) {
+		fprintf(stderr, "WARNING: Non-200 response '%s' from input.\n",
+			lines[0].c_str());
+		return false;
+	}
+
+	multimap<string, string> parameters;
+	for (size_t i = 1; i < lines.size(); ++i) {
+		size_t split = lines[i].find(":");
+		if (split == string::npos) {
+			fprintf(stderr, "WARNING: Ignoring malformed HTTP response line '%s'\n",
+			        lines[i].c_str());
+			continue;
+		}
+
+		string key(lines[i].begin(), lines[i].begin() + split);
+
+		// Skip any spaces after the colon.
+		do {
+			++split;
+		} while (split < lines[i].size() && lines[i][split] == ' ');
+
+		string value(lines[i].begin() + split, lines[i].end());
+
+		// Remove “Content-encoding: metacube”.
+		// TODO: Make case-insensitive.
+		if (key == "Content-encoding" && value == "metacube") {
+			continue;
+		}
+
+		parameters.insert(make_pair(key, value));
+	}
+
+	// Change “Server: foo” to “Server: metacube/0.1 (reflecting: foo)”
+	// TODO: Make case-insensitive.
+	// XXX: Use a Via: instead?
+	if (parameters.count("Server") == 0) {
+		parameters.insert(make_pair("Server", "metacube/0.1"));
+	} else {
+		for (multimap<string, string>::iterator it = parameters.begin();
+		     it != parameters.end();
+		     ++it) {
+			if (it->first != "Server") {
+				continue;
+			}
+			it->second = "metacube/0.1 (reflecting: " + it->second + ")";
+		}
+	}
+
+	// Construct the new HTTP header.
+	http_header = "HTTP/1.0 200 OK\r\n";
+	for (multimap<string, string>::iterator it = parameters.begin();
+	     it != parameters.end();
+	     ++it) {
+		http_header.append(it->first + ": " + it->second + "\r\n");
+	}
+	http_header.append("\r\n");	
+	servers->set_header(stream_id, http_header);
+
+	return true;
+}
 
 void Input::do_work()
 {
@@ -255,7 +367,10 @@ void Input::do_work()
 				response.resize(ptr - response.data());
 			}
 
-			// TODO: Check that the response is 200, save the headers, etc.
+			if (!parse_response(response)) {
+				state = CLOSING_SOCKET;
+				continue;
+			}
 
 			if (!extra_data.empty()) {
 				process_data(&extra_data[0], extra_data.size());
@@ -365,7 +480,7 @@ void Input::process_data(char *ptr, size_t bytes)
 		char *inner_data = pending_data.data() + sizeof(metacube_block_header);
 		if (flags & METACUBE_FLAGS_HEADER) {
 			string header(inner_data, inner_data + size);
-			servers->set_header(stream_id, header);
+			servers->set_header(stream_id, http_header + header);
 		} else { 
 			servers->add_data(stream_id, inner_data, size);
 		}