feat: show/allow setting decoded base64 values in Secrets, ConfigMaps (…

…#663)

Signed-off-by: Andre Dietisheim <[email protected]>

src/main/kotlin/com/redhat/devtools/intellij/kubernetes/balloon/StringInputBalloon.kt

@@ -0,0 +1,151 @@
+/*******************************************************************************
+ * Copyright (c) 2024 Red Hat, Inc.
+ * Distributed under license by Red Hat, Inc. All rights reserved.
+ * This program is made available under the terms of the
+ * Eclipse Public License v2.0 which accompanies this distribution,
+ * and is available at http://www.eclipse.org/legal/epl-v20.html
+ *
+ * Contributors:
+ * Red Hat, Inc. - initial API and implementation
+ ******************************************************************************/
+package com.redhat.devtools.intellij.kubernetes.balloon
+
+import com.intellij.openapi.editor.Editor
+import com.intellij.openapi.ui.ComponentValidator
+import com.intellij.openapi.ui.ValidationInfo
+import com.intellij.openapi.ui.popup.Balloon
+import com.intellij.openapi.ui.popup.JBPopupFactory
+import com.intellij.openapi.ui.popup.JBPopupListener
+import com.intellij.openapi.ui.popup.LightweightWindowEvent
+import com.intellij.openapi.util.Disposer
+import com.intellij.openapi.util.ExpirableRunnable
+import com.intellij.openapi.util.text.StringUtil
+import com.intellij.openapi.wm.IdeFocusManager
+import com.intellij.ui.awt.RelativePoint
+import com.intellij.ui.components.JBLabel
+import com.intellij.ui.components.JBTextField
+import com.intellij.util.ui.JBUI
+import org.jetbrains.annotations.NotNull
+import java.awt.BorderLayout
+import java.awt.Dimension
+import java.awt.event.KeyAdapter
+import java.awt.event.KeyEvent
+import java.awt.event.MouseEvent
+import java.util.function.BiConsumer
+import java.util.function.Supplier
+import javax.swing.JPanel
+import javax.swing.JTextField
+import kotlin.math.max
+
+
+class StringInputBalloon(@NotNull private val onValidValue: (String) -> Unit, @NotNull private val editor: Editor) {
+
+	companion object {
+		private const val MAX_WIDTH = 220.0
+	}
+
+	private var isValid = false
+
+	fun show(event: MouseEvent) {
+		val (field, balloon) = create()
+		balloon.show(RelativePoint(event), Balloon.Position.above)
+		val focusManager = IdeFocusManager.getInstance(editor.project)
+		focusManager.doWhenFocusSettlesDown(onFocused(focusManager, field))
+	}
+
+	private fun create(): Pair<JBTextField, Balloon> {
+		val panel = JPanel(BorderLayout())
+		val label = JBLabel("Value:")
+		label.border = JBUI.Borders.empty(0, 3, 0, 1)
+		panel.add(label, BorderLayout.WEST)
+		val field = JBTextField()
+		field.preferredSize = Dimension(
+			max(MAX_WIDTH, field.preferredSize.width.toDouble()).toInt(),
+			field.preferredSize.height
+		)
+		panel.add(field, BorderLayout.CENTER)
+		val balloon = createBalloon(panel)
+		val disposable = Disposer.newDisposable()
+		Disposer.register(balloon, disposable)
+		ComponentValidator(disposable)
+			.withValidator(ValueValidator(field))
+			.installOn(field)
+			.andRegisterOnDocumentListener(field)
+			.revalidate()
+		val keyListener = onKeyPressed(field, balloon)
+		field.addKeyListener(keyListener)
+		balloon.addListener(onClosed(field, keyListener))
+		return Pair(field, balloon)
+	}
+
+	private fun createBalloon(panel: JPanel): Balloon {
+		return JBPopupFactory.getInstance()
+		.createBalloonBuilder(panel)
+		.setCloseButtonEnabled(false)
+		.setBlockClicksThroughBalloon(true)
+		.setAnimationCycle(0)
+		.setHideOnKeyOutside(true)
+		.setHideOnClickOutside(true)
+		.setFillColor(panel.background)
+		.createBalloon()
+	}
+
+	private fun onClosed(field: JBTextField, keyListener: KeyAdapter): JBPopupListener {
+		return object : JBPopupListener {
+			override fun beforeShown(event: LightweightWindowEvent) {}
+			override fun onClosed(event: LightweightWindowEvent) {
+				field.removeKeyListener(keyListener)
+			}
+		}
+	}
+
+	private fun onKeyPressed(field: JTextField, balloon: Balloon) = object : KeyAdapter() {
+		override fun keyPressed(e: KeyEvent) {
+			when (e.keyCode) {
+				KeyEvent.VK_ESCAPE ->
+					balloon.hide()
+				KeyEvent.VK_ENTER ->
+					if (isValid) {
+						onValidValue.invoke(field.text)
+					}
+			}
+		}
+	}
+
+	private fun onFocused(focusManager: IdeFocusManager, field: JBTextField): ExpirableRunnable {
+		return object : ExpirableRunnable {
+
+			override fun run() {
+				focusManager.requestFocus(field, true)
+				field.selectAll()
+			}
+
+			override fun isExpired(): Boolean {
+				return false
+			}
+		}
+	}
+
+	private inner class ValueValidator(private val field: JTextField) : Supplier<ValidationInfo?> {
+
+		override fun get(): ValidationInfo? {
+			if (!field.isEnabled
+				|| !field.isVisible
+			) {
+				return null
+			}
+			return validate(field.text)
+		}
+
+		private fun validate(name: String): ValidationInfo? {
+			val validation = if (StringUtil.isEmptyOrSpaces(name)) {
+				ValidationInfo("Provide a value", field).asWarning()
+			} else {
+				null
+			}
+			this@StringInputBalloon.isValid = (validation == null)
+			return validation
+		}
+	}
+
+}

src/main/kotlin/com/redhat/devtools/intellij/kubernetes/editor/inlay/Base64InlayHintsProvider.kt

@@ -0,0 +1,119 @@
+@file:Suppress("UnstableApiUsage")
+
+package com.redhat.devtools.intellij.kubernetes.editor.inlay
+
+import com.intellij.codeInsight.hints.ChangeListener
+import com.intellij.codeInsight.hints.FactoryInlayHintsCollector
+import com.intellij.codeInsight.hints.ImmediateConfigurable
+import com.intellij.codeInsight.hints.InlayHintsCollector
+import com.intellij.codeInsight.hints.InlayHintsProvider
+import com.intellij.codeInsight.hints.InlayHintsSink
+import com.intellij.codeInsight.hints.NoSettings
+import com.intellij.codeInsight.hints.SettingsKey
+import com.intellij.codeInsight.hints.presentation.PresentationFactory
+import com.intellij.json.psi.JsonProperty
+import com.intellij.openapi.application.ApplicationManager
+import com.intellij.openapi.application.WriteAction
+import com.intellij.openapi.command.WriteCommandAction
+import com.intellij.openapi.editor.Editor
+import com.intellij.openapi.editor.impl.EditorImpl
+import com.intellij.openapi.progress.ModalTaskOwner.project
+import com.intellij.psi.PsiElement
+import com.intellij.psi.PsiFile
+import com.intellij.refactoring.suggested.startOffset
+import com.intellij.ui.dsl.builder.panel
+import com.redhat.devtools.intellij.kubernetes.balloon.StringInputBalloon
+import com.redhat.devtools.intellij.kubernetes.editor.util.decodeBase64
+import com.redhat.devtools.intellij.kubernetes.editor.util.getContent
+import com.redhat.devtools.intellij.kubernetes.editor.util.getData
+import com.redhat.devtools.intellij.kubernetes.editor.util.getKubernetesResourceInfo
+import com.redhat.devtools.intellij.kubernetes.editor.util.isKubernetesResource
+import com.redhat.devtools.intellij.kubernetes.editor.util.setValue
+import org.jetbrains.yaml.psi.YAMLKeyValue
+import javax.swing.JComponent
+
+
+internal class Base64InlayHintsProvider : InlayHintsProvider<NoSettings> {
+
+	override val key: SettingsKey<NoSettings> = SettingsKey("LSP.hints")
+	override val name: String = "Kubernetes"
+	override val previewText: String = "Preview"
+
+	override fun createSettings(): NoSettings {
+		return NoSettings()
+	}
+
+	override fun createConfigurable(settings: NoSettings): ImmediateConfigurable {
+		return object : ImmediateConfigurable {
+			override fun createComponent(listener: ChangeListener): JComponent = panel {}
+
+			override val mainCheckboxText: String = "Show hints for:"
+
+			override val cases: List<ImmediateConfigurable.Case> = emptyList()
+		}
+	}
+
+	override fun getCollectorFor(
+		file: PsiFile,
+		editor: Editor,
+		settings: NoSettings,
+		sink: InlayHintsSink
+	): InlayHintsCollector? {
+		val project = editor.project ?: return null
+		val virtualFile = file.virtualFile ?: return null
+		val info = getKubernetesResourceInfo(virtualFile, project)
+		if (!isKubernetesResource("Secret", info)
+			&& !isKubernetesResource("ConfigMap", info)
+		) {
+			return null
+		}
+		return Collector(editor)
+	}
+
+	private class Collector(editor: Editor) : FactoryInlayHintsCollector(editor) {
+
+		override fun collect(element: PsiElement, editor: Editor, sink: InlayHintsSink): Boolean {
+			if (!element.isValid) {
+				return true
+			}
+			val content = getContent(element) ?: return true
+			val data = getData(content) ?: return true
+			data.children.toList()
+				.forEach { child ->
+					val value = when (child) {
+						is YAMLKeyValue -> child.value?.text
+						is JsonProperty -> child.value?.text
+						else -> null
+					}
+					val decoded = decodeBase64(value)
+					val offset = when (child) {
+						is YAMLKeyValue -> child.value?.startOffset
+						is JsonProperty -> child.value?.startOffset
+						else -> null
+					} ?: return true
+					if (decoded != null) {
+						val factory = PresentationFactory(editor as EditorImpl)
+						val text = factory.smallText(decoded)
+						val hover = factory.referenceOnHover(text) { event, translated -> StringInputBalloon(onValidValue(child, editor), editor).show(event) }
+						val tooltip = factory.withTooltip("Click to change value", hover)
+						val round = factory.roundWithBackground(tooltip)
+						sink.addInlineElement(offset, false, round, false)
+					}
+				}
+
+			return true
+		}
+
+		fun onValidValue(child: PsiElement, editor: Editor): (value: String) -> Unit {
+			return { value ->
+				ApplicationManager.getApplication().invokeLater {
+					WriteCommandAction.runWriteCommandAction(editor.project) {
+						setValue(value, child, editor.project)
+					}
+				}
+			}
+		}
+	}
+
+
+}

src/main/kotlin/com/redhat/devtools/intellij/kubernetes/editor/util/ResourceEditorUtils.kt

@@ -10,13 +10,15 @@
  ******************************************************************************/
 package com.redhat.devtools.intellij.kubernetes.editor.util
 
+import com.intellij.json.psi.JsonElement
 import com.intellij.json.psi.JsonElementGenerator
 import com.intellij.json.psi.JsonFile
 import com.intellij.json.psi.JsonProperty
 import com.intellij.json.psi.JsonValue
 import com.intellij.openapi.application.ReadAction
 import com.intellij.openapi.editor.Document
 import com.intellij.openapi.project.Project
+import com.intellij.openapi.util.text.Strings
 import com.intellij.openapi.vfs.VirtualFile
 import com.intellij.psi.PsiDocumentManager
 import com.intellij.psi.PsiElement
@@ -27,9 +29,13 @@ import org.jetbrains.yaml.YAMLElementGenerator
 import org.jetbrains.yaml.YAMLUtil
 import org.jetbrains.yaml.psi.YAMLFile
 import org.jetbrains.yaml.psi.YAMLKeyValue
+import org.jetbrains.yaml.psi.YAMLPsiElement
 import org.jetbrains.yaml.psi.YAMLValue
+import org.jetbrains.yaml.psi.impl.YAMLKeyValueKeyManipulator
+import java.util.Base64
 
 private const val KEY_METADATA = "metadata"
+private const val KEY_DATA = "data"
 private const val KEY_RESOURCE_VERSION = "resourceVersion"
 
 /**
@@ -59,6 +65,11 @@ fun isKubernetesResource(resourceInfo: KubernetesResourceInfo?): Boolean {
             && resourceInfo?.typeInfo?.kind?.isNotBlank() ?: false
 }
 
+fun isKubernetesResource(kind: String, resourceInfo: KubernetesResourceInfo?): Boolean {
+    return resourceInfo?.typeInfo?.apiGroup?.isNotBlank() ?: false
+            && kind == resourceInfo?.typeInfo?.kind
+}
+
 /**
  * Returns [KubernetesResourceInfo] for the given file and project. Returns `null` if it could not be retrieved.
  *
@@ -134,6 +145,13 @@ private fun createOrUpdateResourceVersion(resourceVersion: String, metadata: YAM
     }
 }
 
+fun getContent(element: PsiElement): PsiElement? {
+    if (element !is PsiFile) {
+        return null
+    }
+    return getContent(element)
+}
+
 private fun getContent(file: PsiFile): PsiElement? {
     return when (file) {
         is YAMLFile -> {
@@ -154,7 +172,7 @@ fun getMetadata(document: Document?, psi: PsiDocumentManager): PsiElement? {
     }
     val file = psi.getPsiFile(document) ?: return null
     val content = getContent(file) ?: return null
-    return getMetadata(content) ?: return null
+    return getMetadata(content)
 }
 
 private fun getMetadata(content: PsiElement): PsiElement? {
@@ -172,6 +190,53 @@ private fun getMetadata(content: PsiElement): PsiElement? {
     }
 }
 
+fun getData(element: PsiElement): PsiElement? {
+    return when (element) {
+        is YAMLPsiElement ->
+            element.children
+                .filterIsInstance(YAMLKeyValue::class.java)
+                .find { it.name == KEY_DATA }
+                ?.value
+        is JsonElement ->
+            element.children.toList()
+                .filterIsInstance(JsonProperty::class.java)
+                .find { it.name == KEY_DATA }
+                ?.value
+        else ->
+            null
+    }
+}
+
+fun decodeBase64(value: String?): String? {
+    if (Strings.isEmptyOrSpaces(value)) {
+        return null
+    }
+    return try {
+        val bytes = Base64.getDecoder().decode(value)
+        String(bytes)
+    } catch (e: IllegalArgumentException) {
+        null
+    }
+}
+
+fun setValue(value: String, element: PsiElement, project: Project?) {
+    if (project == null) {
+        return
+    }
+    when (element) {
+        is YAMLKeyValue -> {
+            val textElement = YAMLElementGenerator.getInstance(project).createYamlDoubleQuotedString()
+            textElement.updateText(value)
+            element.setValue(textElement)
+        }
+        is JsonProperty -> {
+            val textElement = JsonElementGenerator(project).createProperty(element.name, value)
+            element.parent.addAfter(element, textElement)
+            element.delete()
+        }
+    }
+}
+
 private fun getResourceVersion(metadata: YAMLKeyValue): YAMLKeyValue? {
     return metadata.value?.children
         ?.filterIsInstance(YAMLKeyValue::class.java)