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Fix CA configuration by SSL_CERT_DIR #402

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febeling
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The environment variable SSL_CERT_DIR is documented to configure an
alternative trust CA.

This expected behavior is documented in the SSLConfig module here. It doesn't take effect, though. When searching the library's code for SSL_CERT_DIR it doesn't occur.

This setting is important in cases when a user wants to use a debug proxy, the connection is encrypted, and the client code doesn't use httpclient directly, but through third-party API SDKs, e.g. the google-cloud-storage gem.

Fixes #369

@febeling
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Note there is an alternative PR for this bug in #386.

@febeling
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Test failures are unrelated to this change. The above mentioned PR states that test failures of master are due to expired fixture certificates.

I'll keep this change deliberately narrow, only fixing the problem at hand.

@febeling febeling changed the title Fix CA configuration by environment variable Fix CA configuration by environment variable SSL_CERT_DIR Dec 28, 2018
@febeling febeling changed the title Fix CA configuration by environment variable SSL_CERT_DIR Fix CA configuration by SSL_CERT_DIR Dec 28, 2018
@febeling
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@nahi Any thoughts on this fix?

The environment variable `SSL_CERT_DIR` is documented to configure an
alternative trust CA, but that wasn't used before; fixed.
@vfazio
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vfazio commented Jul 15, 2019

bump, would be good to get this in as it affects other gems, such as OpenIDConnect when attempting to perform discovery

tigefa4u pushed a commit to tigefa4u/gitlabhq that referenced this pull request Jul 15, 2019
By default, httpclient (and hence anything that uses rack-oauth2)
ignores the system-wide SSL certificate configuration in favor of its
own `cacert.pem`. This makes it impossible to use custom certificates
without patching that file. Until
nahi/httpclient#402 is merged, we work around
this limitation by forcing the `HTTPClient` SSL store to use the default
system configuration.

Closes https://gitlab.com/charts/gitlab/issues/1436
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febeling commented Dec 6, 2020

@nahi Please let me know if I can close, or if there's interest.

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SSL_CERT_FILE environment variable is not honoured
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