One of our Windows users recently ran into a strange error when trying to clone a GitHub repository, telling him “protocol https not
supported or disabled in libcurl…”. As it has turned out, he is using PureData which seems to cause troubles in combination with Git, according to this stackoverflow posting.
Switching from his custom Git to SmartGit’s bundled Git has solved the problem for him.
Usually, an SSL handshake_failure is caused by providing a bad client certificate.
If this is not the case, you may add following line to smartgit.properties:
javax.net.debug=ssl
and launch SmartGit from the console (on Windows, use smartgithgc.exe).
The resulting debug output may give hints on possible other reasons. Sometimes it may still be meaningless as it was the case for a support request we have received today.
The relevant part immediately before the error just showed up:
QThreadPoolThread-12 (smartgit.SZ), READ: SSLv3 Alert, length = 2
QThreadPoolThread-12 (smartgit.SZ), RECV TLSv1 ALERT: warning, handshake_failure
SSL - handshake alert: handshake_failure
QThreadPoolThread-12 (smartgit.SZ), handling exception: javax.net.ssl.SSLProtocolException: handshake alert: handshake_failure
QThreadPoolThread-12 (smartgit.SZ), SEND TLSv1 ALERT: fatal, description = unexpected_message
As it turned out, the SSLv2Hello protocol needs to be enabled by adding following line to smartgit.properties:
svnkit.http.sslProtocols=SSLv2Hello,SSLv3
After restarting SmartGit, the problem should be gone.
Version 5.0.9 contains updated SSL fingerprints for GitHub and BitBucket.
Since Bitbucket certificates have changed, SmartGit refuses to connect (“SHA fingerprint of certificate does not match”). We will update fingerprints for version 5.0.8. In the meanwhile you may use the latest build (Help|Check for Latest Build) or your may fix it manually by adding following line to smartgit.properties (in the SmartGit settings directory, see About dialog):
smartgit.hostingProvider.bitbucket.sslFingerprint=37:A8:0E:13:87:DA:13:C3:B8:35:6F:84:EF:74:D2:38:B1:AC:59:9B
After restarting SmartGit, connection will work again.
Edit: As of February 25th, 2015, the official fingerprint as it shows up in the web browswer is E9:5D:6B:1D:28:51:AC:FF:39:93:85:87:F6:30:BE:2E:7B:D0:DA:EA.
For SmartGit/Hg, our graphical Git client with SVN and Hg support, public preview builds for the upcoming version 6 are available. The most important changes are (detailed change log):
You are welcome to give it a try!