SSL connection only fails in Xcode Cloud workflow

Question

scottquintana OP

Created Mar ’23

Replies 1

Boosts 0

Participants 2

Hello,

I have a unit test that uses URLSession to verify that a file from a firebase storage bucket can be downloaded. It passes 100% of the time locally, both in simulators and on an actual device. When running the test through Xcode Cloud, it fails every time with this error:


NSLocalizedRecoverySuggestion=Would you like to connect to the server anyway?, 
_kCFStreamErrorDomainKey=3, 
_NSURLErrorFailingURLSessionTaskErrorKey=LocalDataTask &lt;151C7B2D-1565-47D7-A753-DAB851722510&gt;.&lt;1&gt;, 
NSURLErrorRelatedURLSessionTaskErrorKey=( "LocalDataTask &lt;151C7B2D-1565-47D7-A753-DAB851722510&gt;.&lt;1&gt;" ), 
NSLocalizedDescription=An SSL error has occurred and a secure connection to the server cannot be made., 
NSErrorFailingURLKey=https:&#x2F;&#x2F;firebasestorage.googleapis.com&#x2F;(full url hidden).wav, 
NSUnderlyingError=0x600001c01a40 {Error Domain=kCFErrorDomainCFNetwork Code=-1200 "(null)" 
UserInfo={_kCFStreamPropertySSLClientCertificateState=0, 
_kCFNetworkCFStreamSSLErrorOriginalValue=-9816, 
_kCFStreamErrorDomainKey=3, 
_kCFStreamErrorCodeKey=-9816, 
_NSURLErrorNWPathKey=satisfied (Path is satisfied), interface: utun3}}, 
_kCFStreamErrorCodeKey=-9816}

I've inspected the url with openssl and it all seems fine, also did an nscurl -ats and everything passed. Trying a url from another server also works in the cloud, it just seems to have a problem with the firebase one. I haven't ruled out it being an issue with Firebase, but since I can't really debug what's happening on the cloud simulators, I don't have much to work with.

Boost

Answer 1

enodev OP

Mar ’23

Could be that Apple is intercepting or proxying certain outbout connections from Xcode Cloud to make sure no deails are leaking out? I’d not be surprised.

0