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Add IE Proxy fallback for Win7 (#4838)

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Raynor Vliegendhart 2018-11-29 03:22:05 +01:00 committed by Robert Schumacher
parent fae3055eff
commit f3b5ed1d24
1 changed files with 22 additions and 0 deletions
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22
toolsrc/src/vcpkg/base/downloads.cpp
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@ -42,6 +42,28 @@ namespace vcpkg::Downloads
0);
Checks::check_exit(VCPKG_LINE_INFO, hSession, "WinHttpOpen() failed: %d", GetLastError());
// Win7 IE Proxy fallback
if (IsWindows7OrGreater() && !IsWindows8Point1OrGreater()) {
// First check if any proxy has been found automatically
WINHTTP_PROXY_INFO proxyInfo;
DWORD proxyInfoSize = sizeof(WINHTTP_PROXY_INFO);
auto noProxyFound =
!WinHttpQueryOption(hSession, WINHTTP_OPTION_PROXY, &proxyInfo, &proxyInfoSize)
|| proxyInfo.dwAccessType == WINHTTP_ACCESS_TYPE_NO_PROXY;
// If no proxy was found automatically, use IE's proxy settings, if any
if (noProxyFound) {
WINHTTP_CURRENT_USER_IE_PROXY_CONFIG ieProxy;
if (WinHttpGetIEProxyConfigForCurrentUser(&ieProxy) && ieProxy.lpszProxy != nullptr) {
WINHTTP_PROXY_INFO proxy;
proxy.dwAccessType = WINHTTP_ACCESS_TYPE_NAMED_PROXY;
proxy.lpszProxy = ieProxy.lpszProxy;
proxy.lpszProxyBypass = ieProxy.lpszProxyBypass;
WinHttpSetOption(hSession, WINHTTP_OPTION_PROXY, &proxy, sizeof(proxy));
}
}
}
// Use Windows 10 defaults on Windows 7
DWORD secure_protocols(WINHTTP_FLAG_SECURE_PROTOCOL_SSL3 | WINHTTP_FLAG_SECURE_PROTOCOL_TLS1 |
WINHTTP_FLAG_SECURE_PROTOCOL_TLS1_1 | WINHTTP_FLAG_SECURE_PROTOCOL_TLS1_2);