e-ntfy-android/app/src/main/java/io/heckel/ntfy/ui/AddFragment.kt

440 lines
19 KiB
Kotlin

package io.heckel.ntfy.ui
import android.app.Activity
import android.app.AlertDialog
import android.app.Dialog
import android.content.Context
import android.os.Bundle
import android.text.Editable
import android.text.TextWatcher
import android.view.View
import android.view.WindowManager
import android.view.inputmethod.InputMethodManager
import android.widget.*
import androidx.fragment.app.DialogFragment
import androidx.lifecycle.lifecycleScope
import com.google.android.material.textfield.TextInputEditText
import com.google.android.material.textfield.TextInputLayout
import io.heckel.ntfy.BuildConfig
import io.heckel.ntfy.R
import io.heckel.ntfy.db.Repository
import io.heckel.ntfy.db.User
import io.heckel.ntfy.msg.ApiService
import io.heckel.ntfy.util.*
import kotlinx.coroutines.Dispatchers
import kotlinx.coroutines.launch
class AddFragment : DialogFragment() {
private val api = ApiService()
private lateinit var repository: Repository
private lateinit var subscribeListener: SubscribeListener
private lateinit var appBaseUrl: String
private var defaultBaseUrl: String? = null
private lateinit var subscribeView: View
private lateinit var loginView: View
private lateinit var positiveButton: Button
private lateinit var negativeButton: Button
// Subscribe page
private lateinit var subscribeTopicText: TextInputEditText
private lateinit var subscribeBaseUrlLayout: TextInputLayout
private lateinit var subscribeBaseUrlText: AutoCompleteTextView
private lateinit var subscribeUseAnotherServerCheckbox: CheckBox
private lateinit var subscribeUseAnotherServerDescription: TextView
private lateinit var subscribeInstantDeliveryBox: View
private lateinit var subscribeInstantDeliveryCheckbox: CheckBox
private lateinit var subscribeInstantDeliveryDescription: View
private lateinit var subscribeForegroundDescription: TextView
private lateinit var subscribeProgress: ProgressBar
private lateinit var subscribeErrorText: TextView
private lateinit var subscribeErrorTextImage: View
// Login page
private lateinit var loginUsernameText: TextInputEditText
private lateinit var loginPasswordText: TextInputEditText
private lateinit var loginProgress: ProgressBar
private lateinit var loginErrorText: TextView
private lateinit var loginErrorTextImage: View
interface SubscribeListener {
fun onSubscribe(topic: String, baseUrl: String, instant: Boolean)
}
override fun onAttach(context: Context) {
super.onAttach(context)
subscribeListener = activity as SubscribeListener
}
override fun onCreateDialog(savedInstanceState: Bundle?): Dialog {
if (activity == null) {
throw IllegalStateException("Activity cannot be null")
}
// Dependencies (Fragments need a default constructor)
repository = Repository.getInstance(requireActivity())
appBaseUrl = getString(R.string.app_base_url)
defaultBaseUrl = repository.getDefaultBaseUrl()
// Build root view
val view = requireActivity().layoutInflater.inflate(R.layout.fragment_add_dialog, null)
// Main "pages"
subscribeView = view.findViewById(R.id.add_dialog_subscribe_view)
subscribeView.visibility = View.VISIBLE
loginView = view.findViewById(R.id.add_dialog_login_view)
loginView.visibility = View.GONE
// Fields for "subscribe page"
subscribeTopicText = view.findViewById(R.id.add_dialog_subscribe_topic_text)
subscribeBaseUrlLayout = view.findViewById(R.id.add_dialog_subscribe_base_url_layout)
subscribeBaseUrlLayout.background = view.background
subscribeBaseUrlLayout.makeEndIconSmaller(resources) // Hack!
subscribeBaseUrlText = view.findViewById(R.id.add_dialog_subscribe_base_url_text)
subscribeBaseUrlText.background = view.background
subscribeBaseUrlText.hint = defaultBaseUrl ?: appBaseUrl
subscribeInstantDeliveryBox = view.findViewById(R.id.add_dialog_subscribe_instant_delivery_box)
subscribeInstantDeliveryCheckbox = view.findViewById(R.id.add_dialog_subscribe_instant_delivery_checkbox)
subscribeInstantDeliveryDescription = view.findViewById(R.id.add_dialog_subscribe_instant_delivery_description)
subscribeUseAnotherServerCheckbox = view.findViewById(R.id.add_dialog_subscribe_use_another_server_checkbox)
subscribeUseAnotherServerDescription = view.findViewById(R.id.add_dialog_subscribe_use_another_server_description)
subscribeForegroundDescription = view.findViewById(R.id.add_dialog_subscribe_foreground_description)
subscribeProgress = view.findViewById(R.id.add_dialog_subscribe_progress)
subscribeErrorText = view.findViewById(R.id.add_dialog_subscribe_error_text)
subscribeErrorText.visibility = View.GONE
subscribeErrorTextImage = view.findViewById(R.id.add_dialog_subscribe_error_text_image)
subscribeErrorTextImage.visibility = View.GONE
// Fields for "login page"
loginUsernameText = view.findViewById(R.id.add_dialog_login_username)
loginPasswordText = view.findViewById(R.id.add_dialog_login_password)
loginProgress = view.findViewById(R.id.add_dialog_login_progress)
loginErrorText = view.findViewById(R.id.add_dialog_login_error_text)
loginErrorTextImage = view.findViewById(R.id.add_dialog_login_error_text_image)
// Set foreground description text
subscribeForegroundDescription.text = getString(R.string.add_dialog_foreground_description, shortUrl(appBaseUrl))
// Show/hide based on flavor (faster shortcut for validateInputSubscribeView, which can only run onShow)
if (!BuildConfig.FIREBASE_AVAILABLE) {
subscribeInstantDeliveryBox.visibility = View.GONE
}
// Add baseUrl auto-complete behavior
lifecycleScope.launch(Dispatchers.IO) {
val baseUrlsRaw = repository.getSubscriptions()
.groupBy { it.baseUrl }
.map { it.key }
.filterNot { it == appBaseUrl }
val baseUrls = if (defaultBaseUrl != null) {
(baseUrlsRaw.filterNot { it == defaultBaseUrl } + appBaseUrl).sorted()
} else {
baseUrlsRaw.sorted()
}
val activity = activity ?: return@launch // We may have pressed "Cancel"
activity.runOnUiThread {
initBaseUrlDropdown(baseUrls, subscribeBaseUrlText, subscribeBaseUrlLayout)
}
}
// Username/password validation on type
val loginTextWatcher = AfterChangedTextWatcher {
validateInputLoginView()
}
loginUsernameText.addTextChangedListener(loginTextWatcher)
loginPasswordText.addTextChangedListener(loginTextWatcher)
// Build dialog
val dialog = AlertDialog.Builder(activity)
.setView(view)
.setPositiveButton(R.string.add_dialog_button_subscribe) { _, _ ->
// This will be overridden below to avoid closing the dialog immediately
}
.setNegativeButton(R.string.add_dialog_button_cancel) { _, _ ->
// This will be overridden below
}
.create()
// Show keyboard when the dialog is shown (see https://stackoverflow.com/a/19573049/1440785)
dialog.window?.setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_STATE_VISIBLE)
// Add logic to disable "Subscribe" button on invalid input
dialog.setOnShowListener {
positiveButton = dialog.getButton(AlertDialog.BUTTON_POSITIVE)
positiveButton.isEnabled = false
positiveButton.setOnClickListener {
positiveButtonClick()
}
negativeButton = dialog.getButton(AlertDialog.BUTTON_NEGATIVE)
negativeButton.setOnClickListener {
negativeButtonClick()
}
val subscribeTextWatcher = AfterChangedTextWatcher {
validateInputSubscribeView()
}
subscribeTopicText.addTextChangedListener(subscribeTextWatcher)
subscribeBaseUrlText.addTextChangedListener(subscribeTextWatcher)
subscribeInstantDeliveryCheckbox.setOnCheckedChangeListener { _, _ ->
validateInputSubscribeView()
}
subscribeUseAnotherServerCheckbox.setOnCheckedChangeListener { _, _ ->
validateInputSubscribeView()
}
validateInputSubscribeView()
// Focus topic text (keyboard is shown too, see above)
subscribeTopicText.requestFocus()
}
return dialog
}
private fun positiveButtonClick() {
val topic = subscribeTopicText.text.toString()
val baseUrl = getBaseUrl()
if (subscribeView.visibility == View.VISIBLE) {
checkReadAndMaybeShowLogin(baseUrl, topic)
} else if (loginView.visibility == View.VISIBLE) {
loginAndMaybeDismiss(baseUrl, topic)
}
}
private fun checkReadAndMaybeShowLogin(baseUrl: String, topic: String) {
subscribeProgress.visibility = View.VISIBLE
subscribeErrorText.visibility = View.GONE
subscribeErrorTextImage.visibility = View.GONE
enableSubscribeView(false)
lifecycleScope.launch(Dispatchers.IO) {
try {
val user = repository.getUser(baseUrl) // May be null
val authorized = api.checkAuth(baseUrl, topic, user)
if (authorized) {
Log.d(TAG, "Access granted to topic ${topicUrl(baseUrl, topic)}")
dismissDialog()
} else {
if (user != null) {
Log.w(TAG, "Access not allowed to topic ${topicUrl(baseUrl, topic)}, but user already exists")
showErrorAndReenableSubscribeView(getString(R.string.add_dialog_login_error_not_authorized, user.username))
} else {
Log.w(TAG, "Access not allowed to topic ${topicUrl(baseUrl, topic)}, showing login dialog")
val activity = activity ?: return@launch // We may have pressed "Cancel"
activity.runOnUiThread {
showLoginView(activity)
}
}
}
} catch (e: Exception) {
Log.w(TAG, "Connection to topic failed: ${e.message}", e)
showErrorAndReenableSubscribeView(e.message)
}
}
}
private fun showErrorAndReenableSubscribeView(message: String?) {
val activity = activity ?: return // We may have pressed "Cancel"
activity.runOnUiThread {
subscribeProgress.visibility = View.GONE
subscribeErrorText.visibility = View.VISIBLE
subscribeErrorText.text = message
subscribeErrorTextImage.visibility = View.VISIBLE
enableSubscribeView(true)
}
}
private fun loginAndMaybeDismiss(baseUrl: String, topic: String) {
loginProgress.visibility = View.VISIBLE
loginErrorText.visibility = View.GONE
loginErrorTextImage.visibility = View.GONE
enableLoginView(false)
val user = User(
baseUrl = baseUrl,
username = loginUsernameText.text.toString(),
password = loginPasswordText.text.toString()
)
lifecycleScope.launch(Dispatchers.IO) {
Log.d(TAG, "Checking read access for user ${user.username} to topic ${topicUrl(baseUrl, topic)}")
try {
val authorized = api.checkAuth(baseUrl, topic, user)
if (authorized) {
Log.d(TAG, "Access granted for user ${user.username} to topic ${topicUrl(baseUrl, topic)}, adding to database")
repository.addUser(user)
dismissDialog()
} else {
Log.w(TAG, "Access not allowed for user ${user.username} to topic ${topicUrl(baseUrl, topic)}")
showErrorAndReenableLoginView(getString(R.string.add_dialog_login_error_not_authorized, user.username))
}
} catch (e: Exception) {
Log.w(TAG, "Connection to topic failed during login: ${e.message}", e)
showErrorAndReenableLoginView(e.message)
}
}
}
private fun showErrorAndReenableLoginView(message: String?) {
val activity = activity ?: return // We may have pressed "Cancel"
activity.runOnUiThread {
loginProgress.visibility = View.GONE
loginErrorText.visibility = View.VISIBLE
loginErrorText.text = message
loginErrorTextImage.visibility = View.VISIBLE
enableLoginView(true)
}
}
private fun negativeButtonClick() {
if (subscribeView.visibility == View.VISIBLE) {
dialog?.cancel()
} else if (loginView.visibility == View.VISIBLE) {
showSubscribeView()
}
}
private fun validateInputSubscribeView() {
if (!this::positiveButton.isInitialized) return // As per crash seen in Google Play
// Show/hide things: This logic is intentionally kept simple. Do not simplify "just because it's pretty".
val instantToggleAllowed = if (!BuildConfig.FIREBASE_AVAILABLE) {
false
} else if (subscribeUseAnotherServerCheckbox.isChecked && subscribeBaseUrlText.text.toString() == appBaseUrl) {
true
} else if (!subscribeUseAnotherServerCheckbox.isChecked && defaultBaseUrl == null) {
true
} else {
false
}
if (subscribeUseAnotherServerCheckbox.isChecked) {
subscribeUseAnotherServerDescription.visibility = View.VISIBLE
subscribeBaseUrlLayout.visibility = View.VISIBLE
} else {
subscribeUseAnotherServerDescription.visibility = View.GONE
subscribeBaseUrlLayout.visibility = View.GONE
}
if (instantToggleAllowed) {
subscribeInstantDeliveryBox.visibility = View.VISIBLE
subscribeInstantDeliveryDescription.visibility = if (subscribeInstantDeliveryCheckbox.isChecked) View.VISIBLE else View.GONE
subscribeForegroundDescription.visibility = View.GONE
} else {
subscribeInstantDeliveryBox.visibility = View.GONE
subscribeInstantDeliveryDescription.visibility = View.GONE
subscribeForegroundDescription.visibility = if (BuildConfig.FIREBASE_AVAILABLE) View.VISIBLE else View.GONE
}
// Enable/disable "Subscribe" button
lifecycleScope.launch(Dispatchers.IO) {
val baseUrl = getBaseUrl()
val topic = subscribeTopicText.text.toString()
val subscription = repository.getSubscription(baseUrl, topic)
activity?.let {
it.runOnUiThread {
if (subscription != null || DISALLOWED_TOPICS.contains(topic)) {
positiveButton.isEnabled = false
} else if (subscribeUseAnotherServerCheckbox.isChecked) {
positiveButton.isEnabled = validTopic(topic) && validUrl(baseUrl)
} else {
positiveButton.isEnabled = validTopic(topic)
}
}
}
}
}
private fun validateInputLoginView() {
if (!this::positiveButton.isInitialized || !this::loginUsernameText.isInitialized || !this::loginPasswordText.isInitialized) {
return // As per crash seen in Google Play
}
if (loginUsernameText.visibility == View.GONE) {
positiveButton.isEnabled = true
} else {
positiveButton.isEnabled = (loginUsernameText.text?.isNotEmpty() ?: false)
&& (loginPasswordText.text?.isNotEmpty() ?: false)
}
}
private fun dismissDialog() {
Log.d(TAG, "Closing dialog and calling onSubscribe handler")
val activity = activity?: return // We may have pressed "Cancel"
activity.runOnUiThread {
val topic = subscribeTopicText.text.toString()
val baseUrl = getBaseUrl()
val instant = !BuildConfig.FIREBASE_AVAILABLE || baseUrl != appBaseUrl || subscribeInstantDeliveryCheckbox.isChecked
subscribeListener.onSubscribe(topic, baseUrl, instant)
dialog?.dismiss()
}
}
private fun getBaseUrl(): String {
return if (subscribeUseAnotherServerCheckbox.isChecked) {
subscribeBaseUrlText.text.toString()
} else {
return defaultBaseUrl ?: appBaseUrl
}
}
private fun showSubscribeView() {
resetSubscribeView()
positiveButton.text = getString(R.string.add_dialog_button_subscribe)
negativeButton.text = getString(R.string.add_dialog_button_cancel)
loginView.visibility = View.GONE
subscribeView.visibility = View.VISIBLE
if (subscribeTopicText.requestFocus()) {
val imm = activity?.getSystemService(Context.INPUT_METHOD_SERVICE) as? InputMethodManager
imm?.showSoftInput(subscribeTopicText, InputMethodManager.SHOW_IMPLICIT)
}
}
private fun showLoginView(activity: Activity) {
resetLoginView()
loginProgress.visibility = View.INVISIBLE
positiveButton.text = getString(R.string.add_dialog_button_login)
negativeButton.text = getString(R.string.add_dialog_button_back)
subscribeView.visibility = View.GONE
loginView.visibility = View.VISIBLE
if (loginUsernameText.requestFocus()) {
val imm = activity.getSystemService(Context.INPUT_METHOD_SERVICE) as? InputMethodManager
imm?.showSoftInput(loginUsernameText, InputMethodManager.SHOW_IMPLICIT)
}
}
private fun enableSubscribeView(enable: Boolean) {
subscribeTopicText.isEnabled = enable
subscribeBaseUrlText.isEnabled = enable
subscribeInstantDeliveryCheckbox.isEnabled = enable
subscribeUseAnotherServerCheckbox.isEnabled = enable
positiveButton.isEnabled = enable
}
private fun resetSubscribeView() {
subscribeProgress.visibility = View.GONE
subscribeErrorText.visibility = View.GONE
subscribeErrorTextImage.visibility = View.GONE
enableSubscribeView(true)
}
private fun enableLoginView(enable: Boolean) {
loginUsernameText.isEnabled = enable
loginPasswordText.isEnabled = enable
positiveButton.isEnabled = enable
if (enable && loginUsernameText.requestFocus()) {
val imm = activity?.getSystemService(Context.INPUT_METHOD_SERVICE) as? InputMethodManager
imm?.showSoftInput(loginUsernameText, InputMethodManager.SHOW_IMPLICIT)
}
}
private fun resetLoginView() {
loginProgress.visibility = View.GONE
loginErrorText.visibility = View.GONE
loginErrorTextImage.visibility = View.GONE
loginUsernameText.visibility = View.VISIBLE
loginUsernameText.text?.clear()
loginPasswordText.visibility = View.VISIBLE
loginPasswordText.text?.clear()
enableLoginView(true)
}
companion object {
const val TAG = "NtfyAddFragment"
private val DISALLOWED_TOPICS = listOf("docs", "static", "file") // If updated, also update in server
}
}