Security management: Ease interaction with SSL sites

• Complexity:

  Intermediate

Development environments often use ssl-certificates which are self-signed or signed by company-internal
certification authorities.

If the certificate is unknown maven outputs the following message:
—
INFO] Scanning for projects...
[INFO] snapshot de.foo.bar:bar-parent:0.0.1-SNAPSHOT: checking for updates from snapshots
[WARNING] repository metadata for: 'snapshot de.foo.bar:bar-parent:0.0.1-SNAPSHOT' could not be retrieved from repository: snapshots due to an error: Error transferring file: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
[INFO] Repository 'snapshots' will be blacklisted
—
This is disastrous form usability point of view

Procedures like this are very not very convenient for developers:
—
$JAVA_HOME/bin/keytool -import -alias UserTrustExternalCARoot -file UserTrustExternalCARoot.crt -keystore $JAVA_HOME/jre/lib/security/jssecacerts
export MAVEN_OPTS="-Djavax.net.ssl.keyStore=$HOME/.keystore \
-Djavax.net.ssl.keyStorePassword=changeit \
-Djavax.net.ssl.trustStore=$HOME/.keystore \
-Djavax.net.ssl.trustStorePassword=changeit"
mvn -Dusername=foo deploy
—

Maven should provide an convenient way to accept a unknown certificate.

I my opinion this should implemented like this:

• If the exceptions is raised maven should output a message that the certificate can by downloaded
  and integrated in the keystore in an automated way by invoking the new maven option
  "dc <hostname> ..<hostname>|-download-certificate <hostname> <hostname>"
• If this option is invoked, maven automatically downloads the certificate/ca for the specified
  domain and adds it to a keystore located in $HOME/.m2/keystores/<domain> an executes the specified goal
  with this keystore
• If maven is called without the new option, maven uses the keystores in $HOME/.m2/keystores/<domain>
  before giving up on certificate problems