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InfluxdbCommonWriter: actually verify TLS server certificates

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And add a new option ssl_insecure_noverify to explicitly disable it if desired.
This commit is contained in:
Julian Brost 2021-08-12 16:43:55 +02:00
parent 29e9df938c
commit 8f3f692ecf
3 changed files with 17 additions and 0 deletions
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2
doc/09-object-types.md
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@ -1674,6 +1674,7 @@ Configuration Attributes:
password | String | **Optional.** InfluxDB user password. Defaults to `none`.
basic\_auth | Dictionary | **Optional.** Username and password for HTTP basic authentication.
ssl\_enable | Boolean | **Optional.** Whether to use a TLS stream. Defaults to `false`.
ssl\_insecure\_noverify | Boolean | **Optional.** Disable TLS peer verification.
ssl\_ca\_cert | String | **Optional.** Path to CA certificate to validate the remote host.
ssl\_cert | String | **Optional.** Path to host certificate to present to the remote host for mutual verification.
ssl\_key | String | **Optional.** Path to host key to accompany the ssl\_cert.
@ -1736,6 +1737,7 @@ Configuration Attributes:
bucket | String | **Required.** InfluxDB bucket name.
auth\_token | String | **Required.** InfluxDB authentication token.
ssl\_enable | Boolean | **Optional.** Whether to use a TLS stream. Defaults to `false`.
ssl\_insecure\_noverify | Boolean | **Optional.** Disable TLS peer verification.
ssl\_ca\_cert | String | **Optional.** Path to CA certificate to validate the remote host.
ssl\_cert | String | **Optional.** Path to host certificate to present to the remote host for mutual verification.
ssl\_key | String | **Optional.** Path to host key to accompany the ssl\_cert.

12
lib/perfdata/influxdbcommonwriter.cpp
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@ -187,6 +187,18 @@ OptionalTlsStream InfluxdbCommonWriter::Connect()
<< "TLS handshake with host '" << GetHost() << "' failed.";
throw;
}
if (!GetSslInsecureNoverify()) {
if (!tlsStream.GetPeerCertificate()) {
BOOST_THROW_EXCEPTION(std::runtime_error("InfluxDB didn't present any TLS certificate."));
}
if (!tlsStream.IsVerifyOK()) {
BOOST_THROW_EXCEPTION(std::runtime_error(
"TLS certificate validation failed: " + std::string(tlsStream.GetVerifyError())
));
}
}
}
return std::move(stream);

3
lib/perfdata/influxdbcommonwriter.ti
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@ -18,6 +18,9 @@ abstract class InfluxdbCommonWriter : ConfigObject
[config] bool ssl_enable {
default {{{ return false; }}}
};
[config] bool ssl_insecure_noverify {
default {{{ return false; }}}
};
[config] String ssl_ca_cert {
default {{{ return ""; }}}
};