92 lines
3.6 KiB
Kotlin
92 lines
3.6 KiB
Kotlin
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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package org.mozilla.fenix.customtabs
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import android.content.Intent
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import android.content.Intent.FLAG_ACTIVITY_NEW_DOCUMENT
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import androidx.annotation.VisibleForTesting
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import mozilla.components.browser.session.Session
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import mozilla.components.browser.session.Session.Source
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import mozilla.components.browser.session.SessionManager
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import mozilla.components.concept.engine.EngineSession
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import mozilla.components.concept.engine.manifest.WebAppManifest
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import mozilla.components.concept.engine.manifest.WebAppManifestParser
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import mozilla.components.concept.engine.manifest.getOrNull
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import mozilla.components.feature.intent.ext.putSessionId
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import mozilla.components.feature.intent.processing.IntentProcessor
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import mozilla.components.feature.pwa.ManifestStorage
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import mozilla.components.feature.pwa.ext.putWebAppManifest
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import mozilla.components.feature.pwa.ext.toCustomTabConfig
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import mozilla.components.feature.session.SessionUseCases
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import mozilla.components.support.utils.toSafeIntent
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import org.json.JSONObject
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import java.io.File
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/**
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* Legacy processor for Progressive Web App shortcut intents created by Fennec.
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*/
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class FennecWebAppIntentProcessor(
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private val sessionManager: SessionManager,
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private val loadUrlUseCase: SessionUseCases.DefaultLoadUrlUseCase,
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private val storage: ManifestStorage
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) : IntentProcessor {
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/**
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* Returns true if this intent should launch a progressive web app created in Fennec.
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*/
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override fun matches(intent: Intent) =
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intent.toSafeIntent().action == ACTION_FENNEC_WEBAPP
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/**
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* Processes the given [Intent] by creating a [Session] with a corresponding web app manifest.
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*
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* A custom tab config is also set so a custom tab toolbar can be shown when the user leaves
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* the scope defined in the manifest.
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*/
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override suspend fun process(intent: Intent): Boolean {
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val safeIntent = intent.toSafeIntent()
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val url = safeIntent.dataString
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return if (!url.isNullOrEmpty() && matches(intent)) {
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val webAppManifest = storage.loadManifest(url)
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?: fromFile(safeIntent.getStringExtra(EXTRA_FENNEC_MANIFEST_PATH))?.also {
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storage.saveManifest(it)
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}
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?: return false
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val session = Session(url, private = false, source = Source.HOME_SCREEN)
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session.webAppManifest = webAppManifest
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session.customTabConfig = webAppManifest.toCustomTabConfig()
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sessionManager.add(session)
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loadUrlUseCase(url, session, EngineSession.LoadUrlFlags.external())
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intent.flags = FLAG_ACTIVITY_NEW_DOCUMENT
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intent.putSessionId(session.id)
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intent.putWebAppManifest(webAppManifest)
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true
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} else {
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false
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}
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}
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@VisibleForTesting
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internal fun fromFile(path: String?): WebAppManifest? {
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if (path.isNullOrEmpty()) return null
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// Gecko in Fennec added some add some additional data, such as cached_icon, in
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// the toplevel object. The actual web app manifest is in the "manifest" field.
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val manifest = JSONObject(File(path).readText())
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val manifestField = manifest.getJSONObject("manifest")
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return WebAppManifestParser().parse(manifestField).getOrNull()
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}
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companion object {
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const val ACTION_FENNEC_WEBAPP = "org.mozilla.gecko.WEBAPP"
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const val EXTRA_FENNEC_MANIFEST_PATH = "MANIFEST_PATH"
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}
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}
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