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-rw-r--r--src/httpserver.cpp172
1 files changed, 91 insertions, 81 deletions
diff --git a/src/httpserver.cpp b/src/httpserver.cpp
index 812940eaf9..0d1cba3fd2 100644
--- a/src/httpserver.cpp
+++ b/src/httpserver.cpp
@@ -1,4 +1,4 @@
-// Copyright (c) 2015 The Bitcoin Core developers
+// Copyright (c) 2015-2016 The Bitcoin Core developers
// Distributed under the MIT software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
@@ -19,6 +19,7 @@
#include <sys/types.h>
#include <sys/stat.h>
#include <signal.h>
+#include <future>
#include <event2/event.h>
#include <event2/http.h>
@@ -34,9 +35,6 @@
#endif
#endif
-#include <boost/algorithm/string/case_conv.hpp> // for to_lower()
-#include <boost/foreach.hpp>
-
/** Maximum size of http request (request line + headers) */
static const size_t MAX_HEADERS_SIZE = 8192;
@@ -44,8 +42,8 @@ static const size_t MAX_HEADERS_SIZE = 8192;
class HTTPWorkItem : public HTTPClosure
{
public:
- HTTPWorkItem(std::unique_ptr<HTTPRequest> req, const std::string &path, const HTTPRequestHandler& func):
- req(std::move(req)), path(path), func(func)
+ HTTPWorkItem(std::unique_ptr<HTTPRequest> _req, const std::string &_path, const HTTPRequestHandler& _func):
+ req(std::move(_req)), path(_path), func(_func)
{
}
void operator()()
@@ -68,8 +66,8 @@ class WorkQueue
{
private:
/** Mutex protects entire object */
- CWaitableCriticalSection cs;
- CConditionVariable cond;
+ std::mutex cs;
+ std::condition_variable cond;
std::deque<std::unique_ptr<WorkItem>> queue;
bool running;
size_t maxDepth;
@@ -82,20 +80,20 @@ private:
WorkQueue &wq;
ThreadCounter(WorkQueue &w): wq(w)
{
- boost::lock_guard<boost::mutex> lock(wq.cs);
+ std::lock_guard<std::mutex> lock(wq.cs);
wq.numThreads += 1;
}
~ThreadCounter()
{
- boost::lock_guard<boost::mutex> lock(wq.cs);
+ std::lock_guard<std::mutex> lock(wq.cs);
wq.numThreads -= 1;
wq.cond.notify_all();
}
};
public:
- WorkQueue(size_t maxDepth) : running(true),
- maxDepth(maxDepth),
+ WorkQueue(size_t _maxDepth) : running(true),
+ maxDepth(_maxDepth),
numThreads(0)
{
}
@@ -108,7 +106,7 @@ public:
/** Enqueue a work item */
bool Enqueue(WorkItem* item)
{
- boost::unique_lock<boost::mutex> lock(cs);
+ std::unique_lock<std::mutex> lock(cs);
if (queue.size() >= maxDepth) {
return false;
}
@@ -120,10 +118,10 @@ public:
void Run()
{
ThreadCounter count(*this);
- while (running) {
+ while (true) {
std::unique_ptr<WorkItem> i;
{
- boost::unique_lock<boost::mutex> lock(cs);
+ std::unique_lock<std::mutex> lock(cs);
while (running && queue.empty())
cond.wait(lock);
if (!running)
@@ -137,31 +135,24 @@ public:
/** Interrupt and exit loops */
void Interrupt()
{
- boost::unique_lock<boost::mutex> lock(cs);
+ std::unique_lock<std::mutex> lock(cs);
running = false;
cond.notify_all();
}
/** Wait for worker threads to exit */
void WaitExit()
{
- boost::unique_lock<boost::mutex> lock(cs);
+ std::unique_lock<std::mutex> lock(cs);
while (numThreads > 0)
cond.wait(lock);
}
-
- /** Return current depth of queue */
- size_t Depth()
- {
- boost::unique_lock<boost::mutex> lock(cs);
- return queue.size();
- }
};
struct HTTPPathHandler
{
HTTPPathHandler() {}
- HTTPPathHandler(std::string prefix, bool exactMatch, HTTPRequestHandler handler):
- prefix(prefix), exactMatch(exactMatch), handler(handler)
+ HTTPPathHandler(std::string _prefix, bool _exactMatch, HTTPRequestHandler _handler):
+ prefix(_prefix), exactMatch(_exactMatch), handler(_handler)
{
}
std::string prefix;
@@ -189,7 +180,7 @@ static bool ClientAllowed(const CNetAddr& netaddr)
{
if (!netaddr.IsValid())
return false;
- BOOST_FOREACH (const CSubNet& subnet, rpc_allow_subnets)
+ for(const CSubNet& subnet : rpc_allow_subnets)
if (subnet.Match(netaddr))
return true;
return false;
@@ -199,12 +190,16 @@ static bool ClientAllowed(const CNetAddr& netaddr)
static bool InitHTTPAllowList()
{
rpc_allow_subnets.clear();
- rpc_allow_subnets.push_back(CSubNet("127.0.0.0/8")); // always allow IPv4 local subnet
- rpc_allow_subnets.push_back(CSubNet("::1")); // always allow IPv6 localhost
- if (mapMultiArgs.count("-rpcallowip")) {
- const std::vector<std::string>& vAllow = mapMultiArgs["-rpcallowip"];
- BOOST_FOREACH (std::string strAllow, vAllow) {
- CSubNet subnet(strAllow);
+ CNetAddr localv4;
+ CNetAddr localv6;
+ LookupHost("127.0.0.1", localv4, false);
+ LookupHost("::1", localv6, false);
+ rpc_allow_subnets.push_back(CSubNet(localv4, 8)); // always allow IPv4 local subnet
+ rpc_allow_subnets.push_back(CSubNet(localv6)); // always allow IPv6 localhost
+ if (gArgs.IsArgSet("-rpcallowip")) {
+ for (const std::string& strAllow : gArgs.GetArgs("-rpcallowip")) {
+ CSubNet subnet;
+ LookupSubNet(strAllow.c_str(), subnet);
if (!subnet.IsValid()) {
uiInterface.ThreadSafeMessageBox(
strprintf("Invalid -rpcallowip subnet specification: %s. Valid are a single IP (e.g. 1.2.3.4), a network/netmask (e.g. 1.2.3.4/255.255.255.0) or a network/CIDR (e.g. 1.2.3.4/24).", strAllow),
@@ -215,9 +210,9 @@ static bool InitHTTPAllowList()
}
}
std::string strAllowed;
- BOOST_FOREACH (const CSubNet& subnet, rpc_allow_subnets)
+ for (const CSubNet& subnet : rpc_allow_subnets)
strAllowed += subnet.ToString() + " ";
- LogPrint("http", "Allowing HTTP connections from: %s\n", strAllowed);
+ LogPrint(BCLog::HTTP, "Allowing HTTP connections from: %s\n", strAllowed);
return true;
}
@@ -247,7 +242,7 @@ static void http_request_cb(struct evhttp_request* req, void* arg)
{
std::unique_ptr<HTTPRequest> hreq(new HTTPRequest(req));
- LogPrint("http", "Received a %s request for %s from %s\n",
+ LogPrint(BCLog::HTTP, "Received a %s request for %s from %s\n",
RequestMethodString(hreq->GetRequestMethod()), hreq->GetURI(), hreq->GetPeer().ToString());
// Early address-based allow check
@@ -297,18 +292,19 @@ static void http_request_cb(struct evhttp_request* req, void* arg)
/** Callback to reject HTTP requests after shutdown. */
static void http_reject_request_cb(struct evhttp_request* req, void*)
{
- LogPrint("http", "Rejecting request while shutting down\n");
+ LogPrint(BCLog::HTTP, "Rejecting request while shutting down\n");
evhttp_send_error(req, HTTP_SERVUNAVAIL, NULL);
}
/** Event dispatcher thread */
-static void ThreadHTTP(struct event_base* base, struct evhttp* http)
+static bool ThreadHTTP(struct event_base* base, struct evhttp* http)
{
RenameThread("bitcoin-http");
- LogPrint("http", "Entering http event loop\n");
+ LogPrint(BCLog::HTTP, "Entering http event loop\n");
event_base_dispatch(base);
// Event loop will be interrupted by InterruptHTTPServer()
- LogPrint("http", "Exited http event loop\n");
+ LogPrint(BCLog::HTTP, "Exited http event loop\n");
+ return event_base_got_break(base) == 0;
}
/** Bind HTTP server to specified addresses */
@@ -318,18 +314,17 @@ static bool HTTPBindAddresses(struct evhttp* http)
std::vector<std::pair<std::string, uint16_t> > endpoints;
// Determine what addresses to bind to
- if (!mapArgs.count("-rpcallowip")) { // Default to loopback if not allowing external IPs
+ if (!IsArgSet("-rpcallowip")) { // Default to loopback if not allowing external IPs
endpoints.push_back(std::make_pair("::1", defaultPort));
endpoints.push_back(std::make_pair("127.0.0.1", defaultPort));
- if (mapArgs.count("-rpcbind")) {
+ if (IsArgSet("-rpcbind")) {
LogPrintf("WARNING: option -rpcbind was ignored because -rpcallowip was not specified, refusing to allow everyone to connect\n");
}
- } else if (mapArgs.count("-rpcbind")) { // Specific bind address
- const std::vector<std::string>& vbind = mapMultiArgs["-rpcbind"];
- for (std::vector<std::string>::const_iterator i = vbind.begin(); i != vbind.end(); ++i) {
+ } else if (gArgs.IsArgSet("-rpcbind")) { // Specific bind address
+ for (const std::string& strRPCBind : gArgs.GetArgs("-rpcbind")) {
int port = defaultPort;
std::string host;
- SplitHostPort(*i, port, host);
+ SplitHostPort(strRPCBind, port, host);
endpoints.push_back(std::make_pair(host, port));
}
} else { // No specific bind address specified, bind to any
@@ -339,7 +334,7 @@ static bool HTTPBindAddresses(struct evhttp* http)
// Bind addresses
for (std::vector<std::pair<std::string, uint16_t> >::iterator i = endpoints.begin(); i != endpoints.end(); ++i) {
- LogPrint("http", "Binding RPC on address %s port %i\n", i->first, i->second);
+ LogPrint(BCLog::HTTP, "Binding RPC on address %s port %i\n", i->first, i->second);
evhttp_bound_socket *bind_handle = evhttp_bind_socket_with_handle(http, i->first.empty() ? NULL : i->first.c_str(), i->second);
if (bind_handle) {
boundSockets.push_back(bind_handle);
@@ -367,7 +362,7 @@ static void libevent_log_cb(int severity, const char *msg)
if (severity >= EVENT_LOG_WARN) // Log warn messages and higher without debug category
LogPrintf("libevent: %s\n", msg);
else
- LogPrint("libevent", "libevent: %s\n", msg);
+ LogPrint(BCLog::LIBEVENT, "libevent: %s\n", msg);
}
bool InitHTTPServer()
@@ -387,14 +382,13 @@ bool InitHTTPServer()
// Redirect libevent's logging to our own log
event_set_log_callback(&libevent_log_cb);
-#if LIBEVENT_VERSION_NUMBER >= 0x02010100
- // If -debug=libevent, set full libevent debugging.
- // Otherwise, disable all libevent debugging.
- if (LogAcceptCategory("libevent"))
- event_enable_debug_logging(EVENT_DBG_ALL);
- else
- event_enable_debug_logging(EVENT_DBG_NONE);
-#endif
+ // Update libevent's log handling. Returns false if our version of
+ // libevent doesn't support debug logging, in which case we should
+ // clear the BCLog::LIBEVENT flag.
+ if (!UpdateHTTPServerLogging(logCategories & BCLog::LIBEVENT)) {
+ logCategories &= ~BCLog::LIBEVENT;
+ }
+
#ifdef WIN32
evthread_use_windows_threads();
#else
@@ -427,7 +421,7 @@ bool InitHTTPServer()
return false;
}
- LogPrint("http", "Initialized HTTP server\n");
+ LogPrint(BCLog::HTTP, "Initialized HTTP server\n");
int workQueueDepth = std::max((long)GetArg("-rpcworkqueue", DEFAULT_HTTP_WORKQUEUE), 1L);
LogPrintf("HTTP: creating work queue of depth %d\n", workQueueDepth);
@@ -437,26 +431,45 @@ bool InitHTTPServer()
return true;
}
-boost::thread threadHTTP;
+bool UpdateHTTPServerLogging(bool enable) {
+#if LIBEVENT_VERSION_NUMBER >= 0x02010100
+ if (enable) {
+ event_enable_debug_logging(EVENT_DBG_ALL);
+ } else {
+ event_enable_debug_logging(EVENT_DBG_NONE);
+ }
+ return true;
+#else
+ // Can't update libevent logging if version < 02010100
+ return false;
+#endif
+}
+
+std::thread threadHTTP;
+std::future<bool> threadResult;
bool StartHTTPServer()
{
- LogPrint("http", "Starting HTTP server\n");
+ LogPrint(BCLog::HTTP, "Starting HTTP server\n");
int rpcThreads = std::max((long)GetArg("-rpcthreads", DEFAULT_HTTP_THREADS), 1L);
LogPrintf("HTTP: starting %d worker threads\n", rpcThreads);
- threadHTTP = boost::thread(boost::bind(&ThreadHTTP, eventBase, eventHTTP));
+ std::packaged_task<bool(event_base*, evhttp*)> task(ThreadHTTP);
+ threadResult = task.get_future();
+ threadHTTP = std::thread(std::move(task), eventBase, eventHTTP);
- for (int i = 0; i < rpcThreads; i++)
- boost::thread(boost::bind(&HTTPWorkQueueRun, workQueue));
+ for (int i = 0; i < rpcThreads; i++) {
+ std::thread rpc_worker(HTTPWorkQueueRun, workQueue);
+ rpc_worker.detach();
+ }
return true;
}
void InterruptHTTPServer()
{
- LogPrint("http", "Interrupting HTTP server\n");
+ LogPrint(BCLog::HTTP, "Interrupting HTTP server\n");
if (eventHTTP) {
// Unlisten sockets
- BOOST_FOREACH (evhttp_bound_socket *socket, boundSockets) {
+ for (evhttp_bound_socket *socket : boundSockets) {
evhttp_del_accept_socket(eventHTTP, socket);
}
// Reject requests on current connections
@@ -468,29 +481,26 @@ void InterruptHTTPServer()
void StopHTTPServer()
{
- LogPrint("http", "Stopping HTTP server\n");
+ LogPrint(BCLog::HTTP, "Stopping HTTP server\n");
if (workQueue) {
- LogPrint("http", "Waiting for HTTP worker threads to exit\n");
+ LogPrint(BCLog::HTTP, "Waiting for HTTP worker threads to exit\n");
workQueue->WaitExit();
delete workQueue;
+ workQueue = nullptr;
}
if (eventBase) {
- LogPrint("http", "Waiting for HTTP event thread to exit\n");
+ LogPrint(BCLog::HTTP, "Waiting for HTTP event thread to exit\n");
// Give event loop a few seconds to exit (to send back last RPC responses), then break it
// Before this was solved with event_base_loopexit, but that didn't work as expected in
// at least libevent 2.0.21 and always introduced a delay. In libevent
// master that appears to be solved, so in the future that solution
// could be used again (if desirable).
// (see discussion in https://github.com/bitcoin/bitcoin/pull/6990)
-#if BOOST_VERSION >= 105000
- if (!threadHTTP.try_join_for(boost::chrono::milliseconds(2000))) {
-#else
- if (!threadHTTP.timed_join(boost::posix_time::milliseconds(2000))) {
-#endif
+ if (threadResult.valid() && threadResult.wait_for(std::chrono::milliseconds(2000)) == std::future_status::timeout) {
LogPrintf("HTTP event loop did not exit within allotted time, sending loopbreak\n");
event_base_loopbreak(eventBase);
- threadHTTP.join();
}
+ threadHTTP.join();
}
if (eventHTTP) {
evhttp_free(eventHTTP);
@@ -500,7 +510,7 @@ void StopHTTPServer()
event_base_free(eventBase);
eventBase = 0;
}
- LogPrint("http", "Stopped HTTP server\n");
+ LogPrint(BCLog::HTTP, "Stopped HTTP server\n");
}
struct event_base* EventBase()
@@ -517,8 +527,8 @@ static void httpevent_callback_fn(evutil_socket_t, short, void* data)
delete self;
}
-HTTPEvent::HTTPEvent(struct event_base* base, bool deleteWhenTriggered, const boost::function<void(void)>& handler):
- deleteWhenTriggered(deleteWhenTriggered), handler(handler)
+HTTPEvent::HTTPEvent(struct event_base* base, bool _deleteWhenTriggered, const std::function<void(void)>& _handler):
+ deleteWhenTriggered(_deleteWhenTriggered), handler(_handler)
{
ev = event_new(base, -1, 0, httpevent_callback_fn, this);
assert(ev);
@@ -534,7 +544,7 @@ void HTTPEvent::trigger(struct timeval* tv)
else
evtimer_add(ev, tv); // trigger after timeval passed
}
-HTTPRequest::HTTPRequest(struct evhttp_request* req) : req(req),
+HTTPRequest::HTTPRequest(struct evhttp_request* _req) : req(_req),
replySent(false)
{
}
@@ -599,7 +609,7 @@ void HTTPRequest::WriteReply(int nStatus, const std::string& strReply)
assert(evb);
evbuffer_add(evb, strReply.data(), strReply.size());
HTTPEvent* ev = new HTTPEvent(eventBase, true,
- boost::bind(evhttp_send_reply, req, nStatus, (const char*)NULL, (struct evbuffer *)NULL));
+ std::bind(evhttp_send_reply, req, nStatus, (const char*)NULL, (struct evbuffer *)NULL));
ev->trigger(0);
replySent = true;
req = 0; // transferred back to main thread
@@ -614,7 +624,7 @@ CService HTTPRequest::GetPeer()
const char* address = "";
uint16_t port = 0;
evhttp_connection_get_peer(con, (char**)&address, &port);
- peer = CService(address, port);
+ peer = LookupNumeric(address, port);
}
return peer;
}
@@ -647,7 +657,7 @@ HTTPRequest::RequestMethod HTTPRequest::GetRequestMethod()
void RegisterHTTPHandler(const std::string &prefix, bool exactMatch, const HTTPRequestHandler &handler)
{
- LogPrint("http", "Registering HTTP handler for %s (exactmatch %d)\n", prefix, exactMatch);
+ LogPrint(BCLog::HTTP, "Registering HTTP handler for %s (exactmatch %d)\n", prefix, exactMatch);
pathHandlers.push_back(HTTPPathHandler(prefix, exactMatch, handler));
}
@@ -660,7 +670,7 @@ void UnregisterHTTPHandler(const std::string &prefix, bool exactMatch)
break;
if (i != iend)
{
- LogPrint("http", "Unregistering HTTP handler for %s (exactmatch %d)\n", prefix, exactMatch);
+ LogPrint(BCLog::HTTP, "Unregistering HTTP handler for %s (exactmatch %d)\n", prefix, exactMatch);
pathHandlers.erase(i);
}
}
generated by cgit v1.2.3 (git 2.26.2) at 2024-10-07 10:21:57 +0000