package de.micromata.borgbutler.server.rest
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import de.micromata.borgbutler.json.JsonUtils
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import de.micromata.borgbutler.server.RunningMode
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import mu.KotlinLogging
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import org.apache.commons.lang3.StringUtils
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import org.springframework.web.bind.annotation.GetMapping
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import org.springframework.web.bind.annotation.RequestMapping
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import org.springframework.web.bind.annotation.RequestParam
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import org.springframework.web.bind.annotation.RestController
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import java.awt.Color
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import java.awt.FileDialog
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import java.io.File
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import javax.servlet.http.HttpServletRequest
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import javax.swing.JFileChooser
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import javax.swing.JFrame
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import javax.swing.JLabel
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import javax.swing.SwingConstants
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private val log = KotlinLogging.logger {}
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@RestController
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@RequestMapping("/rest/files")
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class FilesystemBrowserRest {
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/**
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* Opens a directory browser or file browser on the desktop app and returns the chosen dir/file. Works only if Browser and Desktop app are running
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* on the same host.
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*
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* @param current The current path of file. If not given the directory/file browser starts with the last used directory or user.home.
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* @return The chosen directory path (absolute path).
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*/
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@GetMapping("/browse-local-filesystem")
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fun browseLocalFilesystem(
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request: HttpServletRequest,
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@RequestParam("current", required = false) current: String?
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): String {
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val msg = RestUtils.checkLocalDesktopAvailable(request)
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if (msg != null) {
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log.info(msg)
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return msg
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}
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if (fileDialog != null || fileChooser != null) {
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log.warn("Cannot call already opened file choose twice. Close file chooser first.")
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return "{\"directory\": \"\"}"
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}
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var file: File? = null
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synchronized(FilesystemBrowserRest::class.java) {
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if (frame == null) {
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val fr = JFrame("BorgButler")
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frame = fr
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fr.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE)
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fr.setSize(300, 100)
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fr.setResizable(false)
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fr.setLocationRelativeTo(null)
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fr.setBackground(Color.WHITE)
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fr.getContentPane().setBackground(Color.WHITE)
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val label = JLabel("Click for choosing directory...", SwingConstants.CENTER)
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fr.add(label)
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}
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if (RunningMode.oSType == RunningMode.OSType.MAC_OS) {
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// The JFileChooser will hang after several calls, use AWT file dialog instead for Mac OS:
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System.setProperty("apple.awt.fileDialogForDirectories", "true")
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frame?.let {
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it.setAlwaysOnTop(true)
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it.setVisible(true)
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}
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try {
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val dialog =
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FileDialog(frame, "Choose a directory", FileDialog.LOAD)
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fileDialog = dialog
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if (StringUtils.isNotBlank(current)) {
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dialog.setDirectory(current)
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}
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dialog.toFront()
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dialog.setVisible(true)
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val filename: String? = dialog.getFile()
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val directory: String? = dialog.getDirectory()
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dialog.setVisible(false)
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if (filename == null) {
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return ""
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}
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file = File(directory, filename)
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if (file?.isDirectory != true) {
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file = File(directory)
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}
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} finally {
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fileDialog = null
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}
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} else {
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try {
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val chooser = if (StringUtils.isNotBlank(current)) {
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JFileChooser(current)
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} else {
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JFileChooser()
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}
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fileChooser = chooser
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chooser.setFileSelectionMode(JFileChooser.DIRECTORIES_ONLY)
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frame?.let {
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it.setVisible(true)
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it.setAlwaysOnTop(true)
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}
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val returnCode: Int = chooser.showDialog(
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frame,
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"Choose"
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)
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frame?.let {
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it.setVisible(false)
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it.setAlwaysOnTop(false)
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}
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if (returnCode == JFileChooser.APPROVE_OPTION) {
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file = chooser.getSelectedFile()
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}
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} finally {
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fileChooser = null
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}
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}
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}
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val filename = if (file != null) JsonUtils.toJson(file!!.absolutePath) else ""
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return "{\"directory\":\"$filename\"}"
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}
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/**
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* @return OK, if the local desktop services such as open file browser etc. are available.
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*/
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@GetMapping("/local-fileservices-available")
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fun browseLocalFilesystem(request: HttpServletRequest): String {
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val msg = RestUtils.checkLocalDesktopAvailable(request)
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if (msg != null) {
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log.info(msg)
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return msg
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}
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return "OK"
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}
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companion object {
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private var frame: JFrame? = null
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private var fileDialog: FileDialog? = null
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private var fileChooser: JFileChooser? = null
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}
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}
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