{

// Look up config file location (log search path if enabled)

FilePath envConfPath = emitInfoLog ?

core::system::xdg::findSystemConfigFile("environment variables", "env-vars") :

core::system::xdg::systemConfigFile("env-vars");

// No work to do if we don't have a file specifying server environment variables

if (!envConfPath.exists())

{

return Success();

}

// Read all environment variable assignments from the file

core::system::Options env;

Error error = readCollectionFromFile<core::system::Options>(envConfPath, &env,

[=](const std::string& line, core::system::Option* pPair)

{

// Ignore commented lines

if (boost::starts_with(line, "#"))

return ReadCollectionIgnoreLine;

// Ignore lines that don't contain an environment variable assignment

size_t pos = line.find('=');

if (pos == std::string::npos)

return ReadCollectionIgnoreLine;

pPair->first = line.substr(0, pos);

pPair->second = line.substr(pos+1);

return ReadCollectionAddLine;

});

if (error)

{

return error;

}

// Indicate where we read the logs from (for diagnostic purposes)

if (emitInfoLog)

{

LOG_INFO_MESSAGE("Read server environment variables from " +

envConfPath.getAbsolutePath() + " (" +

safe_convert::numberToString(env.size()) + " variables found)");

}

// Set each environment variable

for (core::system::Option var: env)

{

if (emitInfoLog)

{

LOG_INFO_MESSAGE("Setting server environment variable '" +

var.first + "' = '" + var.second + "'");

}

core::system::setenv(var.first, var.second);

}

return Success();

{

for (auto&& proxyVar: {"HTTP_PROXY", "HTTPS_PROXY", "NO_PROXY"})

{

std::string val = core::system::getenv(proxyVar);

if (!val.empty())

{

std::string oldVal = core::system::getenv(*pEnvironment, proxyVar);

if (!oldVal.empty() && oldVal != val)

{

LOG_WARNING_MESSAGE("Overriding HTTP proxy setting " + std::string(proxyVar) +

": '" + oldVal + "' => '" + val + "'");

}

core::system::setenv(pEnvironment, proxyVar, val);

}

}