189 lines
7.1 KiB
Kotlin
189 lines
7.1 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.search.telemetry.ads
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import androidx.annotation.VisibleForTesting
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import kotlinx.coroutines.flow.Flow
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import kotlinx.coroutines.flow.collect
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import kotlinx.coroutines.flow.map
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import mozilla.components.browser.state.state.BrowserState
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import mozilla.components.browser.state.store.BrowserStore
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import mozilla.components.concept.engine.Engine
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import mozilla.components.concept.engine.EngineSession
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import mozilla.components.concept.engine.webextension.MessageHandler
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import mozilla.components.concept.engine.webextension.WebExtension
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import mozilla.components.lib.state.ext.flowScoped
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import mozilla.components.support.base.log.logger.Logger
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import mozilla.components.support.ktx.android.org.json.toList
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import mozilla.components.support.ktx.kotlinx.coroutines.flow.filterChanged
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import org.json.JSONObject
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import org.mozilla.fenix.components.metrics.Event
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import org.mozilla.fenix.components.metrics.MetricController
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import org.mozilla.fenix.ext.containsAds
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import org.mozilla.fenix.search.telemetry.SearchProviderCookie
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import org.mozilla.fenix.search.telemetry.SearchProviderModel
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class AdsTelemetry(private val metrics: MetricController) {
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@VisibleForTesting
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internal val providerList = listOf(
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SearchProviderModel(
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name = "google",
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regexp = "^https:\\/\\/www\\.google\\.(?:.+)\\/search",
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queryParam = "q",
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codeParam = "client",
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codePrefixes = listOf("firefox"),
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followOnParams = listOf("oq", "ved", "ei"),
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extraAdServersRegexps = listOf("^https?:\\/\\/www\\.google(?:adservices)?\\.com\\/(?:pagead\\/)?aclk")
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),
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SearchProviderModel(
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name = "duckduckgo",
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regexp = "^https:\\/\\/duckduckgo\\.com\\/",
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queryParam = "q",
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codeParam = "t",
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codePrefixes = listOf("ff"),
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followOnParams = listOf("oq", "ved", "ei"),
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extraAdServersRegexps = listOf(
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"^https:\\/\\/duckduckgo.com\\/y\\.js",
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"^https:\\/\\/www\\.amazon\\.(?:[a-z.]{2,24}).*(?:tag=duckduckgo-)"
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)
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),
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SearchProviderModel(
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name = "yahoo",
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regexp = "^https:\\/\\/(?:.*)search\\.yahoo\\.com\\/search",
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queryParam = "p"
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),
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SearchProviderModel(
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name = "baidu",
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regexp = "^https:\\/\\/www\\.baidu\\.com\\/from=844b\\/(?:s|baidu)",
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queryParam = "wd",
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codeParam = "tn",
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codePrefixes = listOf("34046034_", "monline_"),
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followOnParams = listOf("oq")
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),
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SearchProviderModel(
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name = "bing",
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regexp = "^https:\\/\\/www\\.bing\\.com\\/search",
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queryParam = "q",
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codeParam = "pc",
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codePrefixes = listOf("MOZ", "MZ"),
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followOnParams = listOf("oq", "ved", "ei"),
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followOnCookies = listOf(
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SearchProviderCookie(
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extraCodeParam = "form",
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extraCodePrefixes = listOf("QBRE"),
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host = "www.bing.com",
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name = "SRCHS",
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codeParam = "PC",
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codePrefixes = listOf("MOZ", "MZ")
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)
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),
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extraAdServersRegexps = listOf(
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"^https:\\/\\/www\\.bing\\.com\\/acli?c?k",
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"^https:\\/\\/www\\.bing\\.com\\/fd\\/ls\\/GLinkPingPost\\.aspx.*acli?c?k"
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)
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)
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)
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fun install(
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engine: Engine,
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store: BrowserStore
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) {
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engine.installWebExtension(
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id = ADS_EXTENSION_ID,
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url = ADS_EXTENSION_RESOURCE_URL,
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allowContentMessaging = true,
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onSuccess = { extension ->
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Logger.debug("Installed ads extension")
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store.flowScoped { flow -> subscribeToUpdates(flow, extension) }
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},
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onError = { _, throwable ->
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Logger.error("Could not install ads extension", throwable)
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})
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}
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fun trackAdClickedMetric(sessionUrl: String?, urlPath: List<String>) {
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if (sessionUrl == null) {
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return
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}
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val provider = getProviderForUrl(sessionUrl)
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provider?.let {
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if (it.containsAds(urlPath)) {
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metrics.track(Event.SearchAdClicked(it.name))
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}
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}
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}
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@VisibleForTesting
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internal fun getProviderForUrl(url: String): SearchProviderModel? {
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for (provider in providerList) {
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if (Regex(provider.regexp).containsMatchIn(url)) {
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return provider
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}
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}
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return null
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}
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private suspend fun subscribeToUpdates(flow: Flow<BrowserState>, extension: WebExtension) {
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// Whenever we see a new EngineSession in the store then we register our content message
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// handler if it has not been added yet.
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flow.map { it.tabs }
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.filterChanged { it.engineState.engineSession }
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.collect { state ->
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val engineSession = state.engineState.engineSession ?: return@collect
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if (extension.hasContentMessageHandler(engineSession, ADS_MESSAGE_ID)) {
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return@collect
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}
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val messageHandler = AdsTelemetryContentMessageHandler()
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extension.registerContentMessageHandler(
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engineSession,
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ADS_MESSAGE_ID,
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messageHandler
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)
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}
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}
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@VisibleForTesting
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internal inner class AdsTelemetryContentMessageHandler : MessageHandler {
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override fun onMessage(message: Any, source: EngineSession?): Any? {
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if (message is JSONObject) {
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val urls = getDocumentUrlList(message)
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val provider = getProviderForUrl(message.getString(ADS_MESSAGE_SESSION_URL_KEY))
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provider?.let {
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if (it.containsAds(urls)) {
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metrics.track(Event.SearchWithAds(it.name))
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}
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}
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} else {
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throw IllegalStateException("Received unexpected message: $message")
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}
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// Needs to return something that is not null and not Unit:
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// https://github.com/mozilla-mobile/android-components/issues/2969
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return ""
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}
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private fun getDocumentUrlList(message: JSONObject): List<String> {
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return message.getJSONArray(ADS_MESSAGE_DOCUMENT_URLS_KEY).toList()
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}
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}
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companion object {
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@VisibleForTesting
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internal const val ADS_EXTENSION_ID = "mozacBrowserAds"
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@VisibleForTesting
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internal const val ADS_EXTENSION_RESOURCE_URL = "resource://android/assets/extensions/ads/"
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@VisibleForTesting
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internal const val ADS_MESSAGE_SESSION_URL_KEY = "url"
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@VisibleForTesting
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internal const val ADS_MESSAGE_DOCUMENT_URLS_KEY = "urls"
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private const val ADS_MESSAGE_ID = "MozacBrowserAds"
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}
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}
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