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Use WinHTTP timeouts to avoid having to test HTTP ports twice

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This commit is contained in:
Cameron Gutman 2020-08-04 02:03:14 -07:00
parent 17cb084968
commit 14d27b4cf5
1 changed files with 14 additions and 8 deletions
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22
mist/mist.cpp
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@ -563,6 +563,11 @@ PortTestStatus TestHttpPort(PSOCKADDR_STORAGE addr, int port, bool isLoopbackRel
goto Exit;
}
// WinHTTP's default timeouts are very long. Set them to something more reasonable.
if (!WinHttpSetTimeouts(hSession, 0, 3000, 5000, 5000)) {
fprintf(LOG_OUT, "WinHttpSetTimeouts() failed: %d\n", GetLastError());
}
// Windows 8.1 enabled TLSv1.2 for WinHTTP by default (8.0 enables it for Schannel but not WinHTTP)
// https://docs.microsoft.com/en-us/security/engineering/solving-tls1-problem
if (!IsWindows8Point1OrGreater()) {
@ -649,9 +654,7 @@ bool TestAllPorts(PSOCKADDR_STORAGE addr, char* portMsg, int portMsgLen, bool is
}
for (int i = 0; i < ARRAYSIZE(k_Ports); i++) {
fprintf(LOG_OUT, "Testing %s %d...",
k_Ports[i].proto == IPPROTO_TCP ? "TCP" : "UDP",
k_Ports[i].port);
PortTestStatus status;
if (consolePrint) {
fprintf(CONSOLE_OUT, "\tTesting %s %d...\n",
@ -659,16 +662,19 @@ bool TestAllPorts(PSOCKADDR_STORAGE addr, char* portMsg, int portMsgLen, bool is
k_Ports[i].port);
}
PortTestStatus status = TestPort(addr, k_Ports[i].proto, k_Ports[i].port, k_Ports[i].withServer, isLoopbackRelay);
if (status != PortTestError && !k_Ports[i].withServer) {
if (!k_Ports[i].withServer) {
// Test using a real HTTP client if the port wasn't totally dead.
// This is required to confirm functionality with the loopback relay.
// TestHttpPort() can take significantly longer to timeout than TestPort(),
// so we only do this test if we believe we're likely to get a response.
assert(k_Ports[i].proto == IPPROTO_TCP);
fprintf(LOG_OUT, "Testing TCP %d with HTTP traffic...", k_Ports[i].port);
status = TestHttpPort(addr, k_Ports[i].port, isLoopbackRelay);
}
else {
fprintf(LOG_OUT, "Testing %s %d...",
k_Ports[i].proto == IPPROTO_TCP ? "TCP" : "UDP",
k_Ports[i].port);
status = TestPort(addr, k_Ports[i].proto, k_Ports[i].port, k_Ports[i].withServer, isLoopbackRelay);
}
if (status != PortTestOk) {
// If we got an unknown result, assume it matches with whatever