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package space.anity
import io.javalin.*
import io.javalin.core.util.*
import io.javalin.rendering.template.*
import java.io.*
import java.nio.charset.*
import java.nio.file.*
import java.text.*
import java.util.*
class FileController {
/**
* Crawls the requested file and either renders the directory view or the file view
*/
fun crawl(ctx: Context) {
try {
val usersFileHome = "$fileHome/${userHandler.getVerifiedUserId(ctx)}"
File(usersFileHome).mkdirs()
when {
File("$usersFileHome/${ctx.splats()[0]}").isDirectory -> {
val files = ArrayList<Array<String>>()
Files.list(Paths.get("$usersFileHome/${ctx.splats()[0]}/")).forEach {
val fileName = it.toString()
.drop(usersFileHome.length + (if (ctx.splats()[0].isNotEmpty()) ctx.splats()[0].length + 2 else 1))
val filePath = "$usersFileHome${it.toString().drop(usersFileHome.length)}"
val file = File(filePath)
val fileSize = if (file.isDirectory) getDirectorySize(file) else file.length()
files.add(
// TODO: Clean up file array responses
arrayOf(
if (file.isDirectory) "$fileName/" else fileName,
humanReadableBytes(fileSize),
SimpleDateFormat("MM/dd/yyyy HH:mm:ss").format(file.lastModified()).toString(),
if (file.isDirectory) "true" else isHumanReadable(file).toString(),
fileSize.toString(), // unformatted file size
file.lastModified().toString() // unformatted last modified date
)
)
}
//files.sortWith(String.CASE_INSENSITIVE_ORDER) // TODO: Reimplement file array sorting in backend
ctx.render(
"files.rocker.html", TemplateUtil.model(
"files", files,
"path", ctx.splats()[0]
)
)
}
isHumanReadable(File("$usersFileHome/${ctx.splats()[0]}")) ->
ctx.render(
"fileview.rocker.html", TemplateUtil.model(
"content", Files.readAllLines(
Paths.get("$usersFileHome/${ctx.splats()[0]}"),
Charsets.UTF_8
).joinToString(separator = "\n"),
"filename", File("$usersFileHome/${ctx.splats()[0]}").name,
"extension", File("$usersFileHome/${ctx.splats()[0]}").extension
)
)
else -> {
ctx.contentType(Files.probeContentType(Paths.get("$usersFileHome/${ctx.splats()[0]}")))
ctx.result(FileInputStream(File("$usersFileHome/${ctx.splats()[0]}")))
}
}
} catch (_: Exception) {
throw NotFoundResponse("Error: File or directory does not exist.")
}
}
/**
* Gets directory size recursively
*/
private fun getDirectorySize(directory: File): Long {
var length: Long = 0
for (file in directory.listFiles()!!) {
length += if (file.isFile) file.length()
else getDirectorySize(file)
}
return length
}
/**
* Checks whether the file is binary or human-readable (text)
*/
private fun isHumanReadable(file: File): Boolean {
val input = FileInputStream(file)
var size = input.available()
if (size > 1000) size = 1000
val data = ByteArray(size)
input.read(data)
input.close()
val text = String(data, Charset.forName("ISO-8859-1"))
val replacedText = text.replace(
("[a-zA-Z0-9ßöäü\\.\\*!\"§\\$\\%&/()=\\?@~'#:,;\\+><\\|\\[\\]\\{\\}\\^°²³\\\\ \\n\\r\\t_\\-`´âêîôÂÊÔÎáéíóàèìòÁÉÍÓÀÈÌÒ©‰¢£¥€±¿»«¼½¾™ª]").toRegex(),
""
)
val d = (text.length - replacedText.length).toDouble() / text.length.toDouble()
return d > 0.95
}
private fun humanReadableBytes(bytes: Long): String {
val unit = 1024
if (bytes < unit) return "$bytes B"
val exp = (Math.log(bytes.toDouble()) / Math.log(unit.toDouble())).toInt()
val pre = "KMGTPE"[exp - 1] + "i"
return String.format("%.1f %sB", bytes / Math.pow(unit.toDouble(), exp.toDouble()), pre)
}
/**
* Saves multipart media data into requested directory
*/
fun upload(ctx: Context) {
ctx.uploadedFiles("file").forEach { (contentType, content, name, extension) ->
val path = "${ctx.splats()[0]}/$name"
FileUtil.streamToFile(
content,
"$fileHome/${userHandler.getVerifiedUserId(ctx)}/$path"
)
databaseController.addFile(path, userHandler.getVerifiedUserId(ctx))
}
}
/*
fun indexAll(ctx: Context) {
Files.list(Paths.get("$fileHome/${getVerifiedUserId(ctx)}").forEach {
// TODO: Add file indexing function
}
}
*/
/**
* Deletes the requested file
*/
fun delete(ctx: Context) {
val userId = userHandler.getVerifiedUserId(ctx)
if (userId > 0) {
val path = ctx.splats()[0]
File("$fileHome/$userId/$path").delete()
databaseController.deleteFile(path, userId)
}
}
/**
* Shares the requested file via the accessId
*/
fun share(ctx: Context) {
val userId = userHandler.getVerifiedUserId(ctx)
if (userId > 0) {
val accessId = databaseController.getAccessId(ctx.splats()[0], userId)
ctx.result("${ctx.host()}/shared?id=$accessId")
}
}
/**
* Renders the shared file
*/
fun renderShared(ctx: Context) {
val accessId = ctx.queryParam("id").toString()
val sharedFileData = databaseController.getSharedFile(accessId)
if (sharedFileData.first > 0 && sharedFileData.second.isNotEmpty()) {
val sharedFileLocation = "$fileHome/${sharedFileData.first}/${sharedFileData.second}"
if (isHumanReadable(File(sharedFileLocation))) {
ctx.render(
"fileview.rocker.html", TemplateUtil.model(
"content", Files.readAllLines(
Paths.get(sharedFileLocation),
Charsets.UTF_8
).joinToString(separator = "\n"),
"filename", File(sharedFileLocation).name,
"extension", File(sharedFileLocation).extension
)
)
} else {
ctx.contentType(Files.probeContentType(Paths.get(sharedFileLocation)))
ctx.result(FileInputStream(File(sharedFileLocation)))
}
} else {
log.info("Unknown file!")
}
}
}
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