package com.stoutner.privacybrowser.coroutines
import android.content.Context
-import android.net.Uri
-import android.webkit.CookieManager
-import android.webkit.MimeTypeMap
import androidx.fragment.app.DialogFragment
import androidx.fragment.app.FragmentManager
import com.stoutner.privacybrowser.activities.MainWebViewActivity
import com.stoutner.privacybrowser.dataclasses.PendingDialogDataClass
import com.stoutner.privacybrowser.dialogs.SaveDialog
-import com.stoutner.privacybrowser.helpers.ProxyHelper
+import com.stoutner.privacybrowser.helpers.UrlHelper
+
import kotlinx.coroutines.CoroutineScope
import kotlinx.coroutines.Dispatchers
import kotlinx.coroutines.launch
import kotlinx.coroutines.withContext
import java.lang.Exception
-import java.net.HttpURLConnection
-import java.net.URL
-import java.text.NumberFormat
object PrepareSaveDialogCoroutine {
@JvmStatic
CoroutineScope(Dispatchers.Main).launch {
// Make the network requests on the IO thread.
withContext(Dispatchers.IO) {
- // Define the strings.
- var formattedFileSize: String
- var fileNameString: String
-
- // Populate the file size and name strings.
- if (urlString.startsWith("data:")) { // The URL contains the entire data of an image.
- // Remove `data:` from the beginning of the URL.
- val urlWithoutData = urlString.substring(5)
-
- // Get the URL MIME type, which ends with a `;`.
- val urlMimeType = urlWithoutData.substring(0, urlWithoutData.indexOf(";"))
-
- // Get the Base64 data, which begins after a `,`.
- val base64DataString = urlWithoutData.substring(urlWithoutData.indexOf(",") + 1)
-
- // Calculate the file size of the data URL. Each Base64 character represents 6 bits.
- formattedFileSize = NumberFormat.getInstance().format(base64DataString.length * 3L / 4) + " " + context.getString(R.string.bytes)
-
- // Set the file name according to the MIME type.
- fileNameString = context.getString(R.string.file) + "." + MimeTypeMap.getSingleton().getExtensionFromMimeType(urlMimeType)
- } else { // The URL refers to the location of the data.
- // Initialize the formatted file size string.
- formattedFileSize = context.getString(R.string.unknown_size)
-
- // Because everything relating to requesting data from a webserver can throw errors, the entire section must catch exceptions.
- try {
- // Convert the URL string to a URL.
- val url = URL(urlString)
-
- // Instantiate the proxy helper.
- val proxyHelper = ProxyHelper()
-
- // Get the current proxy.
- val proxy = proxyHelper.getCurrentProxy(context)
-
- // Open a connection to the URL. No data is actually sent at this point.
- val httpUrlConnection = url.openConnection(proxy) as HttpURLConnection
-
- // Add the user agent to the header property.
- httpUrlConnection.setRequestProperty("User-Agent", userAgent)
-
- // Add the cookies if they are enabled.
- if (cookiesEnabled) {
- // Get the cookies for the current domain.
- val cookiesString = CookieManager.getInstance().getCookie(url.toString())
-
- // Add the cookies if they are not null.
- if (cookiesString != null)
- httpUrlConnection.setRequestProperty("Cookie", cookiesString)
- }
-
- // The actual network request is in a `try` bracket so that `disconnect()` is run in the `finally` section even if an error is encountered in the main block.
- try {
- // Get the status code. This initiates a network connection.
- val responseCode = httpUrlConnection.responseCode
-
- // Check the response code.
- if (responseCode >= 400) { // The response code is an error message.
- // Set the formatted file size to indicate a bad URL.
- formattedFileSize = context.getString(R.string.invalid_url)
-
- // Set the file name according to the URL.
- fileNameString = getFileNameFromUrl(context, urlString, null)
- } else { // The response code is not an error message.
- // Get the headers.
- val contentLengthString = httpUrlConnection.getHeaderField("Content-Length")
- val contentDispositionString = httpUrlConnection.getHeaderField("Content-Disposition")
- var contentTypeString = httpUrlConnection.contentType
-
- // Remove anything after the MIME type in the content type string.
- if (contentTypeString.contains(";"))
- contentTypeString = contentTypeString.substring(0, contentTypeString.indexOf(";"))
-
- // Only process the content length string if it isn't null.
- if (contentLengthString != null) {
- // Convert the content length string to a long.
- val fileSize = contentLengthString.toLong()
-
- // Format the file size.
- formattedFileSize = NumberFormat.getInstance().format(fileSize) + " " + context.getString(R.string.bytes)
- }
-
- // Get the file name string from the content disposition.
- fileNameString = getFileNameFromHeaders(context, contentDispositionString, contentTypeString, urlString)
- }
- } finally {
- // Disconnect the HTTP URL connection.
- httpUrlConnection.disconnect()
- }
- } catch (exception: Exception) {
- // Set the formatted file size to indicate a bad URL.
- formattedFileSize = context.getString(R.string.invalid_url)
-
- // Set the file name according to the URL.
- fileNameString = getFileNameFromUrl(context, urlString, null)
- }
- }
+ // Get the file name and size.
+ val fileNameAndSize = UrlHelper.getNameAndSize(context, urlString, userAgent, cookiesEnabled)
// Display the dialog on the main thread.
withContext(Dispatchers.Main) {
// Instantiate the save dialog.
- val saveDialogFragment: DialogFragment = SaveDialog.saveUrl(urlString, formattedFileSize, fileNameString, userAgent, cookiesEnabled)
+ val saveDialogFragment: DialogFragment = SaveDialog.saveUrl(urlString, fileNameAndSize.first, fileNameAndSize.second, userAgent, cookiesEnabled)
// Try to show the dialog. Sometimes the window is not active.
try {
}
}
}
-
- // Content dispositions can contain other text besides the file name, and they can be in any order.
- // Elements are separated by semicolons. Sometimes the file names are contained in quotes.
- @JvmStatic
- fun getFileNameFromHeaders(context: Context, contentDispositionString: String?, contentTypeString: String?, urlString: String): String {
- // Define a file name string.
- var fileNameString: String
-
- // Only process the content disposition string if it isn't null.
- if (contentDispositionString != null) { // The content disposition is not null.
- // Check to see if the content disposition contains a file name.
- if (contentDispositionString.contains("filename=")) { // The content disposition contains a filename.
- // Get the part of the content disposition after `filename=`.
- fileNameString = contentDispositionString.substring(contentDispositionString.indexOf("filename=") + 9)
-
- // Remove any `;` and anything after it. This removes any entries after the filename.
- if (fileNameString.contains(";"))
- fileNameString = fileNameString.substring(0, fileNameString.indexOf(";") - 1)
-
- // Remove any `"` at the beginning of the string.
- if (fileNameString.startsWith("\""))
- fileNameString = fileNameString.substring(1)
-
- // Remove any `"` at the end of the string.
- if (fileNameString.endsWith("\""))
- fileNameString = fileNameString.substring(0, fileNameString.length - 1)
- } else { // The headers contain no useful information.
- // Get the file name string from the URL.
- fileNameString = getFileNameFromUrl(context, urlString, contentTypeString)
- }
- } else { // The content disposition is null.
- // Get the file name string from the URL.
- fileNameString = getFileNameFromUrl(context, urlString, contentTypeString)
- }
-
- // Return the file name string.
- return fileNameString
- }
-
- private fun getFileNameFromUrl(context: Context, urlString: String, contentTypeString: String?): String {
- // Convert the URL string to a URI.
- val uri = Uri.parse(urlString)
-
- // Get the last path segment.
- var lastPathSegment = uri.lastPathSegment
-
- // Use a default file name if the last path segment is null.
- if (lastPathSegment == null) {
- // Set the last path segment to be the generic file name.
- lastPathSegment = context.getString(R.string.file)
-
- // Add a file extension if it can be detected.
- if (MimeTypeMap.getSingleton().hasMimeType(contentTypeString))
- lastPathSegment = lastPathSegment + "." + MimeTypeMap.getSingleton().getExtensionFromMimeType(contentTypeString)
- }
-
- // Return the last path segment as the file name.
- return lastPathSegment
- }
}
projects / PrivacyBrowserAndroid.git / blobdiff