com.icfolson.aem.groovy.console.impl.DefaultGroovyConsoleService.groovy Maven / Gradle / Ivy

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The AEM Groovy Console provides an interface for running Groovy scripts in the AEM container. Scripts can be created to manipulate content in the JCR, call OSGi services, or execute arbitrary code using the AEM, Sling, or JCR APIs.
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package com.icfolson.aem.groovy.console.impl

import com.day.cq.commons.jcr.JcrConstants
import com.day.cq.commons.jcr.JcrUtil
import com.google.common.net.MediaType
import com.icfolson.aem.groovy.console.GroovyConsoleService
import com.icfolson.aem.groovy.console.audit.AuditService
import com.icfolson.aem.groovy.console.configuration.ConfigurationService
import com.icfolson.aem.groovy.console.extension.ExtensionService
import com.icfolson.aem.groovy.console.notification.NotificationService
import com.icfolson.aem.groovy.console.response.RunScriptResponse
import com.icfolson.aem.groovy.console.response.SaveScriptResponse
import groovy.json.JsonException
import groovy.json.JsonSlurper
import groovy.transform.Synchronized
import groovy.util.logging.Slf4j
import org.apache.commons.lang3.CharEncoding
import org.apache.felix.scr.annotations.Component
import org.apache.felix.scr.annotations.Reference
import org.apache.felix.scr.annotations.ReferenceCardinality
import org.apache.felix.scr.annotations.ReferencePolicy
import org.apache.felix.scr.annotations.Service
import org.apache.jackrabbit.util.Text
import org.apache.sling.api.SlingHttpServletRequest
import org.codehaus.groovy.control.CompilerConfiguration
import org.codehaus.groovy.control.MultipleCompilationErrorsException

import javax.jcr.Node
import javax.jcr.Session
import java.util.concurrent.CopyOnWriteArrayList

import static com.google.common.base.Preconditions.checkNotNull
import static com.icfolson.aem.groovy.console.constants.GroovyConsoleConstants.EXTENSION_GROOVY
import static com.icfolson.aem.groovy.console.constants.GroovyConsoleConstants.PARAMETER_DATA
import static com.icfolson.aem.groovy.console.constants.GroovyConsoleConstants.PATH_CONSOLE_ROOT
import static org.codehaus.groovy.control.customizers.builder.CompilerCustomizationBuilder.withConfig

@Service(GroovyConsoleService)
@Component
@Slf4j("LOG")
class DefaultGroovyConsoleService implements GroovyConsoleService {

    static final String RELATIVE_PATH_SCRIPT_FOLDER = "scripts"

    static final String PARAMETER_FILE_NAME = "fileName"

    static final String PARAMETER_SCRIPT = "script"

    static final String FORMAT_RUNNING_TIME = "HH:mm:ss.SSS"

    static final String TIME_ZONE_RUNNING_TIME = "GMT"

    static final def RUNNING_TIME = { closure ->
        def start = System.currentTimeMillis()

        closure()

        def date = new Date()

        date.time = System.currentTimeMillis() - start
        date.format(FORMAT_RUNNING_TIME, TimeZone.getTimeZone(TIME_ZONE_RUNNING_TIME))
    }

    @Reference
    private ConfigurationService configurationService

    @Reference(cardinality = ReferenceCardinality.OPTIONAL_MULTIPLE,
        referenceInterface = NotificationService, policy = ReferencePolicy.DYNAMIC)
    private List notificationServices = new CopyOnWriteArrayList<>()

    @Reference
    private AuditService auditService

    @Reference
    private ExtensionService extensionService

    @Override
    RunScriptResponse runScript(SlingHttpServletRequest request) {
        runScript(request, null)
    }

    @Override
    RunScriptResponse runScript(SlingHttpServletRequest request, String scriptPath) {
        def session = request.resourceResolver.adaptTo(Session)

        def scriptContent

        if (scriptPath) {
            scriptContent = loadScriptContent(session, scriptPath)
        } else {
            scriptContent = request.getRequestParameter(PARAMETER_SCRIPT)?.getString(CharEncoding.UTF_8)
        }

        checkNotNull(scriptContent, "Script content cannot be empty.")

        def data = request.getRequestParameter(PARAMETER_DATA)?.getString(CharEncoding.UTF_8)
        def stream = new ByteArrayOutputStream()
        def response = null

        def binding = getBinding(extensionService.getBinding(request), data, stream)

        try {
            def script = new GroovyShell(binding, configuration).parse(scriptContent)

            extensionService.getScriptMetaClasses(request).each { meta ->
                script.metaClass(meta)
            }

            def result = null

            def runningTime = RUNNING_TIME {
                result = script.run()
            }

            LOG.debug("script execution completed, running time = {}", runningTime)

            response = RunScriptResponse.fromResult(scriptContent, data, result, stream.toString(CharEncoding.UTF_8),
                runningTime)

            auditAndNotify(session, response)
        } catch (MultipleCompilationErrorsException e) {
            LOG.error("script compilation error", e)

            response = RunScriptResponse.fromException(scriptContent, e)
        } catch (Throwable t) {
            LOG.error("error running script", t)

            response = RunScriptResponse.fromException(scriptContent, t)

            auditAndNotify(session, response)
        } finally {
            stream.close()
        }

        response
    }

    @Override
    List runScripts(SlingHttpServletRequest request, List scriptPaths) {
        scriptPaths.collect { scriptPath ->
            runScript(request, scriptPath)
        }
    }

    @Override
    @Synchronized
    SaveScriptResponse saveScript(SlingHttpServletRequest request) {
        def session = request.resourceResolver.adaptTo(Session)
        def folderNode = JcrUtil.createPath("$PATH_CONSOLE_ROOT/$RELATIVE_PATH_SCRIPT_FOLDER", JcrConstants.NT_FOLDER,
            session)

        def name = request.getParameter(PARAMETER_FILE_NAME)
        def fileName = name.endsWith(EXTENSION_GROOVY) ? name : "$name$EXTENSION_GROOVY"

        if (folderNode.hasNode(fileName)) {
            folderNode.getNode(fileName).remove()
        }

        def script = request.getParameter(PARAMETER_SCRIPT)

        saveFile(session, folderNode, script, fileName, new Date(), MediaType.OCTET_STREAM.toString())

        new SaveScriptResponse(fileName)
    }

    @Synchronized
    void bindNotificationService(NotificationService notificationService) {
        notificationServices.add(notificationService)

        LOG.info("added notification service = {}", notificationService.class.name)
    }

    @Synchronized
    void unbindNotificationServices(NotificationService notificationService) {
        notificationServices.remove(notificationService)

        LOG.info("removed notification service = {}", notificationService.class.name)
    }

    // internals

    private void auditAndNotify(Session session, RunScriptResponse response) {
        if (!configurationService.auditDisabled) {
            auditService.createAuditRecord(session, response)
        }

        notificationServices.each { notificationService ->
            notificationService.notify(session, response)
        }
    }

    private Binding getBinding(Binding binding, String data, OutputStream stream) {
        binding["out"] = new PrintStream(stream, true, CharEncoding.UTF_8)

        if (data) {
            try {
                binding["data"] = new JsonSlurper().parseText(data)
            } catch (JsonException ignored) {
                binding["data"] = data
            }
        }

        binding
    }

    private CompilerConfiguration getConfiguration() {
        def configuration = new CompilerConfiguration()

        withConfig(configuration) {
            imports {
                star extensionService.starImports as String[]
            }
        }
    }

    private String loadScriptContent(Session session, String scriptPath) {
        def binary = session.getNode(scriptPath)
            .getNode(JcrConstants.JCR_CONTENT)
            .getProperty(JcrConstants.JCR_DATA)
            .binary

        def scriptContent = binary.stream.text

        binary.dispose()

        scriptContent
    }

    private void saveFile(Session session, Node folderNode, String script, String fileName, Date date,
        String mimeType) {
        def fileNode = folderNode.addNode(Text.escapeIllegalJcrChars(fileName), JcrConstants.NT_FILE)
        def resourceNode = fileNode.addNode(JcrConstants.JCR_CONTENT, JcrConstants.NT_RESOURCE)

        def stream = new ByteArrayInputStream(script.getBytes(CharEncoding.UTF_8))
        def binary = session.valueFactory.createBinary(stream)

        resourceNode.setProperty(JcrConstants.JCR_MIMETYPE, mimeType)
        resourceNode.setProperty(JcrConstants.JCR_ENCODING, CharEncoding.UTF_8)
        resourceNode.setProperty(JcrConstants.JCR_DATA, binary)
        resourceNode.setProperty(JcrConstants.JCR_LASTMODIFIED, date.time)
        resourceNode.setProperty(JcrConstants.JCR_LAST_MODIFIED_BY, session.userID)

        session.save()
        binary.dispose()
    }
}