extracting the captcha webview logic to a reusable class
This commit is contained in:
Adam Brown
parent
c98fe59965
commit
81a325b769
@ -0,0 +1,177 @@
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/*
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* Copyright (c) 2022 New Vector Ltd
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package im.vector.app.features.onboarding.ftueauth
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import android.annotation.SuppressLint
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import android.content.DialogInterface
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import android.graphics.Bitmap
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import android.net.http.SslError
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import android.os.Build
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import android.view.KeyEvent
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import android.view.View
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import android.webkit.SslErrorHandler
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import android.webkit.WebResourceRequest
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import android.webkit.WebResourceResponse
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import android.webkit.WebView
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import android.webkit.WebViewClient
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import androidx.core.view.isVisible
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import androidx.fragment.app.Fragment
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import com.google.android.material.dialog.MaterialAlertDialogBuilder
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import im.vector.app.R
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import im.vector.app.core.utils.AssetReader
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import im.vector.app.features.login.JavascriptResponse
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import im.vector.app.features.onboarding.OnboardingViewState
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import org.matrix.android.sdk.api.util.MatrixJsonParser
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import timber.log.Timber
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import java.net.URLDecoder
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import java.util.Formatter
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import javax.inject.Inject
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class CaptchaWebview @Inject constructor(
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private val assetReader: AssetReader
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) {
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@SuppressLint("SetJavaScriptEnabled")
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fun setupWebView(
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container: Fragment,
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webView: WebView,
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progressView: View,
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siteKey: String,
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state: OnboardingViewState,
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onSuccess: (String) -> Unit
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) {
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webView.settings.javaScriptEnabled = true
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val reCaptchaPage = assetReader.readAssetFile("reCaptchaPage.html") ?: error("missing asset reCaptchaPage.html")
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val html = Formatter().format(reCaptchaPage, siteKey).toString()
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val mime = "text/html"
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val encoding = "utf-8"
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val homeServerUrl = state.selectedHomeserver.upstreamUrl ?: error("missing url of homeserver")
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webView.loadDataWithBaseURL(homeServerUrl, html, mime, encoding, null)
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webView.requestLayout()
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webView.webViewClient = object : WebViewClient() {
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override fun onPageStarted(view: WebView?, url: String?, favicon: Bitmap?) {
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super.onPageStarted(view, url, favicon)
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if (!container.isAdded) {
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return
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}
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// Show loader
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progressView.isVisible = true
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}
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override fun onPageFinished(view: WebView, url: String) {
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super.onPageFinished(view, url)
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if (!container.isAdded) {
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return
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}
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// Hide loader
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progressView.isVisible = false
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}
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override fun onReceivedSslError(view: WebView, handler: SslErrorHandler, error: SslError) {
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Timber.d("## onReceivedSslError() : ${error.certificate}")
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if (!container.isAdded) {
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return
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}
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MaterialAlertDialogBuilder(container.requireActivity())
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.setMessage(R.string.ssl_could_not_verify)
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.setPositiveButton(R.string.ssl_trust) { _, _ ->
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Timber.d("## onReceivedSslError() : the user trusted")
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handler.proceed()
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}
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.setNegativeButton(R.string.ssl_do_not_trust) { _, _ ->
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Timber.d("## onReceivedSslError() : the user did not trust")
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handler.cancel()
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}
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.setOnKeyListener(DialogInterface.OnKeyListener { dialog, keyCode, event ->
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if (event.action == KeyEvent.ACTION_UP && keyCode == KeyEvent.KEYCODE_BACK) {
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handler.cancel()
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Timber.d("## onReceivedSslError() : the user dismisses the trust dialog.")
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dialog.dismiss()
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return@OnKeyListener true
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}
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false
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})
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.setCancelable(false)
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.show()
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}
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// common error message
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private fun onError(errorMessage: String) {
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Timber.e("## onError() : $errorMessage")
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// TODO
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// Toast.makeText(this@AccountCreationCaptchaActivity, errorMessage, Toast.LENGTH_LONG).show()
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// on error case, close this activity
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// runOnUiThread(Runnable { finish() })
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}
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@SuppressLint("NewApi")
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override fun onReceivedHttpError(view: WebView, request: WebResourceRequest, errorResponse: WebResourceResponse) {
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super.onReceivedHttpError(view, request, errorResponse)
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if (request.url.toString().endsWith("favicon.ico")) {
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// Ignore this error
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return
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}
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if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
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onError(errorResponse.reasonPhrase)
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} else {
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onError(errorResponse.toString())
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}
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}
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override fun onReceivedError(view: WebView, errorCode: Int, description: String, failingUrl: String) {
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@Suppress("DEPRECATION")
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super.onReceivedError(view, errorCode, description, failingUrl)
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onError(description)
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}
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override fun shouldOverrideUrlLoading(view: WebView?, url: String?): Boolean {
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if (url?.startsWith("js:") == true) {
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var json = url.substring(3)
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var javascriptResponse: JavascriptResponse? = null
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try {
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// URL decode
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json = URLDecoder.decode(json, "UTF-8")
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javascriptResponse = MatrixJsonParser.getMoshi().adapter(JavascriptResponse::class.java).fromJson(json)
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} catch (e: Exception) {
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Timber.e(e, "## shouldOverrideUrlLoading(): failed")
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}
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val response = javascriptResponse?.response
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if (javascriptResponse?.action == "verifyCallback" && response != null) {
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onSuccess(response)
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}
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}
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return true
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}
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}
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}
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}
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@ -16,35 +16,15 @@
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package im.vector.app.features.onboarding.ftueauth
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import android.annotation.SuppressLint
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import android.content.DialogInterface
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import android.graphics.Bitmap
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import android.net.http.SslError
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import android.os.Build
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import android.os.Parcelable
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import android.view.KeyEvent
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import android.view.LayoutInflater
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import android.view.ViewGroup
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import android.webkit.SslErrorHandler
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import android.webkit.WebResourceRequest
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import android.webkit.WebResourceResponse
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import android.webkit.WebView
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import android.webkit.WebViewClient
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import androidx.core.view.isVisible
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import com.airbnb.mvrx.args
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import com.google.android.material.dialog.MaterialAlertDialogBuilder
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import im.vector.app.R
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import im.vector.app.core.utils.AssetReader
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import im.vector.app.databinding.FragmentLoginCaptchaBinding
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import im.vector.app.features.login.JavascriptResponse
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import im.vector.app.features.onboarding.OnboardingAction
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import im.vector.app.features.onboarding.OnboardingViewState
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import im.vector.app.features.onboarding.RegisterAction
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import kotlinx.parcelize.Parcelize
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import org.matrix.android.sdk.api.util.MatrixJsonParser
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import timber.log.Timber
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import java.net.URLDecoder
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import java.util.Formatter
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import javax.inject.Inject
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@Parcelize
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@ -53,10 +33,10 @@ data class FtueAuthCaptchaFragmentArgument(
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) : Parcelable
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/**
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* In this screen, the user is asked to confirm he is not a robot
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* In this screen, the user is asked to confirm they are not a robot
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*/
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class FtueAuthCaptchaFragment @Inject constructor(
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private val assetReader: AssetReader
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private val captchaWebview: CaptchaWebview
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) : AbstractFtueAuthFragment<FragmentLoginCaptchaBinding>() {
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override fun getBinding(inflater: LayoutInflater, container: ViewGroup?): FragmentLoginCaptchaBinding {
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@ -67,136 +47,15 @@ class FtueAuthCaptchaFragment @Inject constructor(
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private var isWebViewLoaded = false
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@SuppressLint("SetJavaScriptEnabled")
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private fun setupWebView(state: OnboardingViewState) {
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views.loginCaptchaWevView.settings.javaScriptEnabled = true
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val reCaptchaPage = assetReader.readAssetFile("reCaptchaPage.html") ?: error("missing asset reCaptchaPage.html")
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val html = Formatter().format(reCaptchaPage, params.siteKey).toString()
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val mime = "text/html"
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val encoding = "utf-8"
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val homeServerUrl = state.selectedHomeserver.upstreamUrl ?: error("missing url of homeserver")
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views.loginCaptchaWevView.loadDataWithBaseURL(homeServerUrl, html, mime, encoding, null)
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views.loginCaptchaWevView.requestLayout()
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views.loginCaptchaWevView.webViewClient = object : WebViewClient() {
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override fun onPageStarted(view: WebView?, url: String?, favicon: Bitmap?) {
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super.onPageStarted(view, url, favicon)
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if (!isAdded) {
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return
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}
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// Show loader
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views.loginCaptchaProgress.isVisible = true
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}
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override fun onPageFinished(view: WebView, url: String) {
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super.onPageFinished(view, url)
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if (!isAdded) {
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return
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}
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// Hide loader
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views.loginCaptchaProgress.isVisible = false
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}
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override fun onReceivedSslError(view: WebView, handler: SslErrorHandler, error: SslError) {
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Timber.d("## onReceivedSslError() : ${error.certificate}")
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if (!isAdded) {
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return
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}
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MaterialAlertDialogBuilder(requireActivity())
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.setMessage(R.string.ssl_could_not_verify)
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.setPositiveButton(R.string.ssl_trust) { _, _ ->
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Timber.d("## onReceivedSslError() : the user trusted")
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handler.proceed()
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}
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.setNegativeButton(R.string.ssl_do_not_trust) { _, _ ->
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Timber.d("## onReceivedSslError() : the user did not trust")
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handler.cancel()
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}
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.setOnKeyListener(DialogInterface.OnKeyListener { dialog, keyCode, event ->
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if (event.action == KeyEvent.ACTION_UP && keyCode == KeyEvent.KEYCODE_BACK) {
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handler.cancel()
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Timber.d("## onReceivedSslError() : the user dismisses the trust dialog.")
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dialog.dismiss()
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return@OnKeyListener true
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}
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false
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})
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.setCancelable(false)
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.show()
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}
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// common error message
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private fun onError(errorMessage: String) {
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Timber.e("## onError() : $errorMessage")
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// TODO
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// Toast.makeText(this@AccountCreationCaptchaActivity, errorMessage, Toast.LENGTH_LONG).show()
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// on error case, close this activity
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// runOnUiThread(Runnable { finish() })
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}
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@SuppressLint("NewApi")
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override fun onReceivedHttpError(view: WebView, request: WebResourceRequest, errorResponse: WebResourceResponse) {
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super.onReceivedHttpError(view, request, errorResponse)
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if (request.url.toString().endsWith("favicon.ico")) {
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// Ignore this error
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return
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}
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if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
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onError(errorResponse.reasonPhrase)
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} else {
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onError(errorResponse.toString())
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}
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}
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override fun onReceivedError(view: WebView, errorCode: Int, description: String, failingUrl: String) {
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@Suppress("DEPRECATION")
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super.onReceivedError(view, errorCode, description, failingUrl)
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onError(description)
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}
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override fun shouldOverrideUrlLoading(view: WebView?, url: String?): Boolean {
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if (url?.startsWith("js:") == true) {
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var json = url.substring(3)
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var javascriptResponse: JavascriptResponse? = null
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try {
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// URL decode
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json = URLDecoder.decode(json, "UTF-8")
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javascriptResponse = MatrixJsonParser.getMoshi().adapter(JavascriptResponse::class.java).fromJson(json)
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} catch (e: Exception) {
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Timber.e(e, "## shouldOverrideUrlLoading(): failed")
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}
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val response = javascriptResponse?.response
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if (javascriptResponse?.action == "verifyCallback" && response != null) {
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viewModel.handle(OnboardingAction.PostRegisterAction(RegisterAction.CaptchaDone(response)))
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}
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}
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return true
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}
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}
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}
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override fun resetViewModel() {
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viewModel.handle(OnboardingAction.ResetAuthenticationAttempt)
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}
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override fun updateWithState(state: OnboardingViewState) {
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if (!isWebViewLoaded) {
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setupWebView(state)
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captchaWebview.setupWebView(this, views.loginCaptchaWevView, views.loginCaptchaProgress, params.siteKey, state) {
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viewModel.handle(OnboardingAction.PostRegisterAction(RegisterAction.CaptchaDone(it)))
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}
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isWebViewLoaded = true
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}
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}
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