server/container/guice/protocols/jmap/src/main/java/org/apache/james/jmap/draft/JmapConfigurationSanitizer.java

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package org.apache.james.jmap.draft;

import java.io.FileNotFoundException;

import jakarta.inject.Inject;

import org.apache.james.RunArguments;
import org.apache.james.filesystem.api.FileSystem;
import org.apache.james.lifecycle.api.ConfigurationSanitizer;
import org.apache.james.utils.KeystoreCreator;

public class JmapConfigurationSanitizer implements ConfigurationSanitizer {
    private final JMAPDraftConfiguration jmapDraftConfiguration;
    private final KeystoreCreator keystoreCreator;
    private final FileSystem fileSystem;
    private final RunArguments runArguments;

    @Inject
    public JmapConfigurationSanitizer(JMAPDraftConfiguration jmapDraftConfiguration, KeystoreCreator keystoreCreator, FileSystem fileSystem, RunArguments runArguments) {
        this.jmapDraftConfiguration = jmapDraftConfiguration;
        this.keystoreCreator = keystoreCreator;
        this.fileSystem = fileSystem;
        this.runArguments = runArguments;
    }

    @Override
    public void sanitize() throws Exception {
        if (jmapDraftConfiguration.isEnabled()
            && jmapDraftConfiguration.getKeystore().isPresent()
            && !keystoreExists()
            && runArguments.contain(RunArguments.Argument.GENERATE_KEYSTORE)) {

            keystoreCreator.generateKeystore(jmapDraftConfiguration.getKeystore().get(),
                jmapDraftConfiguration.getSecret()
                    .orElseThrow(() -> new IllegalArgumentException("Can not auto-generate keystore as the keystore secret is missing from the configuration")),
                jmapDraftConfiguration.getKeystoreType());
        }
    }

    private boolean keystoreExists() {
        try {
            return fileSystem.getFile(jmapDraftConfiguration.getKeystore().get()).exists();
        } catch (FileNotFoundException e) {
            return false;
        }
    }
}