+package net.pterodactylus.sone.web.pages
+
+import freenet.support.api.Bucket
+import net.pterodactylus.sone.text.TextFilter
+import net.pterodactylus.sone.utils.emptyToNull
+import net.pterodactylus.sone.utils.headers
+import net.pterodactylus.sone.utils.isPOST
+import net.pterodactylus.sone.utils.parameters
+import net.pterodactylus.sone.utils.use
+import net.pterodactylus.sone.web.WebInterface
+import net.pterodactylus.sone.web.page.FreenetRequest
+import net.pterodactylus.util.template.Template
+import net.pterodactylus.util.template.TemplateContext
+import org.bouncycastle.asn1.x500.style.RFC4519Style.title
+import java.awt.image.BufferedImage
+import java.io.ByteArrayInputStream
+import java.io.ByteArrayOutputStream
+import javax.imageio.ImageIO
+
+/**
+ * Page implementation that lets the user upload an image.
+ */
+class UploadImagePage(template: Template, webInterface: WebInterface):
+ SoneTemplatePage("uploadImage.html", template, "Page.UploadImage.Title", webInterface, true) {
+
+ override fun handleRequest(request: FreenetRequest, templateContext: TemplateContext) {
+ if (request.isPOST) {
+ val parentAlbum = request.parameters["parent"]!!.let(webInterface.core::getAlbum) ?: throw RedirectException("noPermission.html")
+ if (parentAlbum.sone != getCurrentSone(request.toadletContext)) {
+ throw RedirectException("noPermission.html")
+ }
+ val title = request.parameters["title", 200].emptyToNull ?: throw RedirectException("emptyImageTitle.html")
+
+ val uploadedFile = request.httpRequest.getUploadedFile("image")
+ val bytes = uploadedFile.data.use { it.toByteArray() }
+ val bufferedImage = bytes.toImage()
+ if (bufferedImage == null) {
+ templateContext["messages"] = webInterface.l10n.getString("Page.UploadImage.Error.InvalidImage")
+ return
+ }
+
+ val temporaryImage = webInterface.core.createTemporaryImage(bytes.mimeType, bytes)
+ webInterface.core.createImage(getCurrentSone(request.toadletContext), parentAlbum, temporaryImage).modify().apply {
+ setWidth(bufferedImage.width)
+ setHeight(bufferedImage.height)
+ setTitle(title)
+ setDescription(TextFilter.filter(request.headers["Host"], request.parameters["description", 4000]))
+ }.update()
+ throw RedirectException("imageBrowser.html?album=${parentAlbum.id}")
+ }
+ }
+
+ private fun Bucket.toByteArray(): ByteArray = ByteArrayOutputStream(size().toInt()).use { outputStream ->
+ inputStream.copyTo(outputStream)
+ outputStream.toByteArray()
+ }
+
+ private fun ByteArray.toImage(): BufferedImage? = ByteArrayInputStream(this).use {
+ ImageIO.read(it)
+ }
+
+ private val ByteArray.mimeType get() = ByteArrayInputStream(this).use {
+ ImageIO.createImageInputStream(it).use {
+ ImageIO.getImageReaders(it).asSequence()
+ .firstOrNull()?.originatingProvider?.mimeTypes?.firstOrNull()
+ ?: UNKNOWN_MIME_TYPE
+ }
+ }
+
+}
+
+private const val UNKNOWN_MIME_TYPE = "application/octet-stream"