forked from vitalif/vitastor
Fix websocket (and timer!) bugs
parent
268b497c0b
commit
ec4a52af48
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@ -401,6 +401,11 @@ void osd_t::force_stop()
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exit(0);
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});
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}
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else
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{
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printf("[OSD %lu] Force stopping\n", this->osd_num);
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exit(0);
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}
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}
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void osd_t::load_pgs()
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122
osd_http.cpp
122
osd_http.cpp
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@ -13,6 +13,8 @@
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#define READ_BUFFER_SIZE 9000
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static int extract_port(std::string & host);
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static std::string strtolower(const std::string & in);
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static std::string trim(const std::string & in);
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static std::string ws_format_frame(int type, uint64_t size);
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static bool ws_parse_frame(std::string & buf, int & type, std::string & res);
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@ -26,10 +28,12 @@ struct http_co_t
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int request_timeout = 0;
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std::string host;
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std::string request;
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std::string ws_outbox;
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std::string response;
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bool want_streaming;
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http_response_t parsed;
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uint64_t target_response_size = 0;
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int state = 0;
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int peer_fd = -1;
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@ -47,7 +51,7 @@ struct http_co_t
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websocket_t ws;
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~http_co_t();
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void connect();
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void start_connection();
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void handle_connect_result();
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void submit_read();
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void submit_send();
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@ -60,7 +64,7 @@ struct http_co_t
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#define HTTP_CO_REQUEST_SENT 3
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#define HTTP_CO_HEADERS_RECEIVED 4
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#define HTTP_CO_WEBSOCKET 5
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#define HTTP_CO_STREAMING_CHUNKED 6
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#define HTTP_CO_CHUNKED 6
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void osd_t::http_request(std::string host, std::string request, bool streaming, std::function<void(const http_response_t *response)> callback)
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{
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@ -75,7 +79,7 @@ void osd_t::http_request(std::string host, std::string request, bool streaming,
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handler->request = request;
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handler->callback = callback;
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handler->ws.co = handler;
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handler->connect();
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handler->start_connection();
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}
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void osd_t::http_request_json(std::string host, std::string request,
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@ -90,14 +94,14 @@ void osd_t::http_request_json(std::string host, std::string request,
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}
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if (res->status_code != 200)
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{
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callback("HTTP "+std::to_string(res->status_code)+" "+res->status_line+" body: "+res->body, json11::Json());
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callback("HTTP "+std::to_string(res->status_code)+" "+res->status_line+" body: "+trim(res->body), json11::Json());
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return;
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}
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std::string json_err;
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json11::Json data = json11::Json::parse(res->body, json_err);
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if (json_err != "")
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{
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callback("Bad JSON: "+json_err+" (response: "+res->body+")", json11::Json());
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callback("Bad JSON: "+json_err+" (response: "+trim(res->body)+")", json11::Json());
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return;
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}
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callback(std::string(), data);
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@ -124,7 +128,7 @@ websocket_t* osd_t::open_websocket(std::string host, std::string path, std::func
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handler->request = request;
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handler->callback = callback;
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handler->ws.co = handler;
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handler->connect();
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handler->start_connection();
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return &handler->ws;
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}
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@ -133,6 +137,11 @@ void websocket_t::post_message(int type, const std::string & msg)
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co->post_message(type, msg);
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}
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void websocket_t::close()
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{
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delete co;
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}
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http_co_t::~http_co_t()
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{
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if (timeout_id >= 0)
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@ -183,7 +192,7 @@ http_co_t::~http_co_t()
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callback(&parsed);
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}
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void http_co_t::connect()
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void http_co_t::start_connection()
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{
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int port = extract_port(host);
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struct sockaddr_in addr;
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@ -224,11 +233,11 @@ void http_co_t::connect()
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}
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else
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{
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if (epoll_events & EPOLLIN)
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if (this->epoll_events & EPOLLIN)
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{
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submit_read();
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}
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else if (epoll_events & (EPOLLRDHUP|EPOLLERR))
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else if (this->epoll_events & (EPOLLRDHUP|EPOLLERR))
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{
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delete this;
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}
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@ -396,21 +405,44 @@ void http_co_t::handle_read()
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{
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// Don't care about validating the key
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state = HTTP_CO_WEBSOCKET;
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request = "";
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request = ws_outbox;
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ws_outbox = "";
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sent = 0;
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submit_send();
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}
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else if (want_streaming && parsed.headers["transfer-encoding"] == "chunked")
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else if (parsed.headers["transfer-encoding"] == "chunked")
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{
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state = HTTP_CO_STREAMING_CHUNKED;
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state = HTTP_CO_CHUNKED;
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}
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else if (parsed.headers["connection"] != "close")
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{
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target_response_size = stoull_full(parsed.headers["content-length"]);
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if (!target_response_size)
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{
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// Sorry, unsupported response
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delete this;
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return;
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}
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}
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}
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}
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if (state == HTTP_CO_STREAMING_CHUNKED && response.size() > 0)
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if (state == HTTP_CO_HEADERS_RECEIVED && target_response_size > 0 && response.size() >= target_response_size)
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{
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delete this;
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return;
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}
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if (state == HTTP_CO_CHUNKED && response.size() > 0)
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{
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int prev = 0, pos = 0;
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while ((pos = response.find("\r\n", prev)) >= prev)
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{
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uint64_t len = strtoull(response.c_str()+prev, NULL, 16);
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if (!len)
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{
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// Zero length chunk indicates EOF
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delete this;
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return;
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}
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if (response.size() < pos+2+len+2)
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{
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break;
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@ -422,7 +454,7 @@ void http_co_t::handle_read()
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{
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response = response.substr(prev);
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}
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if (parsed.body.size() > 0)
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if (want_streaming && parsed.body.size() > 0)
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{
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callback(&parsed);
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parsed.body = "";
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@ -440,9 +472,17 @@ void http_co_t::handle_read()
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void http_co_t::post_message(int type, const std::string & msg)
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{
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request += ws_format_frame(type, msg.size());
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request += msg;
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submit_send();
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if (state == HTTP_CO_WEBSOCKET)
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{
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request += ws_format_frame(type, msg.size());
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request += msg;
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submit_send();
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}
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else
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{
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ws_outbox += ws_format_frame(type, msg.size());
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ws_outbox += msg;
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}
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}
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uint64_t stoull_full(const std::string & str, int base)
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@ -487,13 +527,12 @@ void parse_http_headers(std::string & res, http_response_t *parsed)
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int p2 = header.find(":");
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if (p2 >= 0)
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{
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std::string key = header.substr(0, p2);
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for (int i = 0; i < key.length(); i++)
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key[i] = tolower(key[i]);
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std::string key = strtolower(header.substr(0, p2));
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int p3 = p2+1;
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while (p3 < header.length() && isblank(header[p3]))
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p3++;
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parsed->headers[key] = header.substr(p3);
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parsed->headers[key] = key == "connection" || key == "upgrade" || key == "transfer-encoding"
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? strtolower(header.substr(p3)) : header.substr(p3);
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}
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prev = pos+2;
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}
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@ -541,9 +580,9 @@ static bool ws_parse_frame(std::string & buf, int & type, std::string & res)
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return false;
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}
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type = buf[0] & ~0x80;
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bool mask = buf[1] & 0x80;
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bool mask = !!(buf[1] & 0x80);
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hdr += mask ? 4 : 0;
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uint64_t len = (buf[1] & ~0x80);
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uint64_t len = ((uint8_t)buf[1] & ~0x80);
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if (len == 126)
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{
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hdr += 2;
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@ -551,7 +590,7 @@ static bool ws_parse_frame(std::string & buf, int & type, std::string & res)
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{
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return false;
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}
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len = ((uint64_t)buf[2] << 8) | ((uint64_t)buf[3] << 0);
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len = ((uint64_t)(uint8_t)buf[2] << 8) | ((uint64_t)(uint8_t)buf[3] << 0);
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}
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else if (len == 127)
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{
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@ -560,14 +599,14 @@ static bool ws_parse_frame(std::string & buf, int & type, std::string & res)
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{
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return false;
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}
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len = ((uint64_t)buf[2] << 56) |
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((uint64_t)buf[3] << 48) |
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((uint64_t)buf[4] << 40) |
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((uint64_t)buf[5] << 32) |
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((uint64_t)buf[6] << 24) |
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((uint64_t)buf[7] << 16) |
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((uint64_t)buf[8] << 8) |
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((uint64_t)buf[9] << 0);
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len = ((uint64_t)(uint8_t)buf[2] << 56) |
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((uint64_t)(uint8_t)buf[3] << 48) |
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((uint64_t)(uint8_t)buf[4] << 40) |
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((uint64_t)(uint8_t)buf[5] << 32) |
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((uint64_t)(uint8_t)buf[6] << 24) |
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((uint64_t)(uint8_t)buf[7] << 16) |
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((uint64_t)(uint8_t)buf[8] << 8) |
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((uint64_t)(uint8_t)buf[9] << 0);
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}
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if (buf.size() < hdr+len)
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{
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@ -633,3 +672,22 @@ static int extract_port(std::string & host)
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}
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return port;
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}
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static std::string strtolower(const std::string & in)
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{
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std::string s = in;
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for (int i = 0; i < s.length(); i++)
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{
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s[i] = tolower(s[i]);
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}
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return s;
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}
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static std::string trim(const std::string & in)
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{
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int begin = in.find_first_not_of(" \n\r\t");
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if (begin == -1)
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return "";
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int end = in.find_last_not_of(" \n\r\t");
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return in.substr(begin, end+1-begin);
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}
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@ -27,6 +27,7 @@ struct websocket_t
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{
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http_co_t *co;
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void post_message(int type, const std::string & msg);
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void close();
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};
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void parse_http_headers(std::string & res, http_response_t *parsed);
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@ -3,11 +3,13 @@
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#include <signal.h>
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static osd_t *osd = NULL;
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static bool force_stopping = false;
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static void handle_sigint(int sig)
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{
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if (osd)
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if (osd && !force_stopping)
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{
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force_stopping = true;
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osd->force_stop();
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return;
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}
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@ -150,15 +150,17 @@ void timerfd_manager_t::set_wait()
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read(timerfd, &n, 8);
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if (nearest >= 0)
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{
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if (!timers[nearest].repeat)
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{
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timers.erase(timers.begin()+nearest, timers.begin()+nearest+1);
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}
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else
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int nearest_id = timers[nearest].id;
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auto cb = timers[nearest].callback;
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if (timers[nearest].repeat)
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{
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inc_timer(timers[nearest]);
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}
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timers[nearest].callback(timers[nearest].id);
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else
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{
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timers.erase(timers.begin()+nearest, timers.begin()+nearest+1);
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}
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cb(nearest_id);
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nearest = -1;
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}
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wait_state = 0;
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