EN: Display more details about app usage, add feature for deleting RPI storage

play-services-nearby-core-ui/build.gradle

@@ -57,4 +57,8 @@ android {
         sourceCompatibility = 1.8
         targetCompatibility = 1.8
     }
+
+    kotlinOptions {
+        jvmTarget = 1.8
+    }
 }

play-services-nearby-core-ui/src/main/kotlin/org/microg/gms/nearby/core/ui/ExposureNotificationsAppPreferencesFragment.kt

@@ -8,16 +8,18 @@ package org.microg.gms.nearby.core.ui
 import android.content.Intent
 import android.os.Bundle
 import android.text.format.DateUtils
+import androidx.core.text.HtmlCompat
 import androidx.lifecycle.lifecycleScope
 import androidx.preference.Preference
 import androidx.preference.PreferenceFragmentCompat
 import org.json.JSONObject
 import org.microg.gms.nearby.exposurenotification.ExposureDatabase
-import java.util.concurrent.TimeUnit
+import org.microg.gms.nearby.exposurenotification.merge
 
 class ExposureNotificationsAppPreferencesFragment : PreferenceFragmentCompat() {
     private lateinit var open: Preference
-    private lateinit var checks: Preference
+    private lateinit var report: Preference
+    private lateinit var apiUsage: Preference
     private val packageName: String?
         get() = arguments?.getString("package")
 
@@ -27,7 +29,8 @@ class ExposureNotificationsAppPreferencesFragment : PreferenceFragmentCompat() {
 
     override fun onBindPreferences() {
         open = preferenceScreen.findPreference("pref_exposure_app_open") ?: open
-        checks = preferenceScreen.findPreference("pref_exposure_app_checks") ?: checks
+        report = preferenceScreen.findPreference("pref_exposure_app_report") ?: report
+        apiUsage = preferenceScreen.findPreference("pref_exposure_app_api_usage") ?: apiUsage
         open.onPreferenceClickListener = Preference.OnPreferenceClickListener {
             try {
                 packageName?.let {
@@ -50,27 +53,34 @@ class ExposureNotificationsAppPreferencesFragment : PreferenceFragmentCompat() {
     fun updateContent() {
         packageName?.let { packageName ->
             lifecycleScope.launchWhenResumed {
-                checks.summary = ExposureDatabase.with(requireContext()) { database ->
+                val (reportTitle, reportSummary, apiUsageSummary) = ExposureDatabase.with(requireContext()) { database ->
-                    var str = getString(R.string.pref_exposure_app_checks_summary, database.countMethodCalls(packageName, "provideDiagnosisKeys"))
+                    val apiUsageSummary = database.methodUsageHistogram(packageName).map {
+                        getString(R.string.pref_exposure_app_api_usage_summary_line, it.second, it.first.let { "<tt>$it</tt>" })
+                    }.joinToString("<br>").takeIf { it.isNotEmpty() }
+                    val token = database.lastMethodCallArgs(packageName, "provideDiagnosisKeys")?.let { JSONObject(it).getString("request_token") }
+                            ?: return@with Triple(null, null, apiUsageSummary)
                     val lastCheckTime = database.lastMethodCall(packageName, "provideDiagnosisKeys")
-                    if (lastCheckTime != null && lastCheckTime != 0L) {
+                            ?: return@with Triple(null, null, apiUsageSummary)
-                        str += "\n" + getString(R.string.pref_exposure_app_last_check_summary, DateUtils.getRelativeDateTimeString(context, lastCheckTime, DateUtils.MINUTE_IN_MILLIS, DateUtils.WEEK_IN_MILLIS, DateUtils.FORMAT_SHOW_TIME))
+                    val config = database.loadConfiguration(packageName, token)
+                            ?: return@with Triple(null, null, apiUsageSummary)
+                    val merged = database.findAllMeasuredExposures(config.first).merge().sortedBy { it.timestamp }
+                    val reportTitle = getString(R.string.pref_exposure_app_last_report_title, DateUtils.getRelativeTimeSpanString(lastCheckTime, System.currentTimeMillis(), DateUtils.MINUTE_IN_MILLIS))
+                    val diagnosisKeysLine = getString(R.string.pref_exposure_app_last_report_summary_diagnosis_keys, database.countDiagnosisKeysInvolved(config.first))
+                    val encountersLine = if (merged.isEmpty()) {
+                        getString(R.string.pref_exposure_app_last_report_summary_encounters_no)
+                    } else {
+                        database.findAllMeasuredExposures(config.first).merge().map {
+                            val riskScore = it.getRiskScore(config.second)
+                            "· " + getString(R.string.pref_exposure_app_last_report_summary_encounters_line, DateUtils.formatDateRange(requireContext(), it.timestamp, it.timestamp + it.durationInMinutes * 60 * 1000L, DateUtils.FORMAT_SHOW_TIME or DateUtils.FORMAT_SHOW_DATE), riskScore)
+                        }.joinToString("<br>").let { getString(R.string.pref_exposure_app_last_report_summary_encounters_prefix, merged.size) + "<br>$it<br><i>" + getString(R.string.pref_exposure_app_last_report_summary_encounters_suffix) + "</i>" }
                     }
-                    val lastExposureSummaryTime = database.lastMethodCall(packageName, "getExposureSummary")
+                    Triple(reportTitle, "$diagnosisKeysLine<br>$encountersLine", apiUsageSummary)
-                    val lastExposureSummary = database.lastMethodCallArgs(packageName, "getExposureSummary")
-                    if (lastExposureSummaryTime != null && lastExposureSummary != null && System.currentTimeMillis() - lastExposureSummaryTime <= TimeUnit.DAYS.toMillis(1)) {
-                        try {
-                            val json = JSONObject(lastExposureSummary)
-                            val matchedKeys = json.optInt("response_matched_keys")
-                            val daysSince = json.optInt("response_days_since", -1)
-                            if (matchedKeys > 0 && daysSince >= 0) {
-                                str += "\n" + resources.getQuantityString(R.plurals.pref_exposure_app_last_report_summary, matchedKeys, matchedKeys, daysSince)
-                            }
-                        } catch (ignored: Exception) {
-                        }
-                    }
-                    str
                 }
+                report.isVisible = reportSummary != null
+                report.title = reportTitle
+                report.summary = HtmlCompat.fromHtml(reportSummary.orEmpty(), HtmlCompat.FROM_HTML_MODE_COMPACT).trim()
+                apiUsage.isVisible = apiUsageSummary != null
+                apiUsage.summary = HtmlCompat.fromHtml(apiUsageSummary.orEmpty(), HtmlCompat.FROM_HTML_MODE_COMPACT).trim()
             }
         }
     }

play-services-nearby-core-ui/src/main/kotlin/org/microg/gms/nearby/core/ui/ExposureNotificationsRpisFragment.kt

@@ -6,9 +6,15 @@
 package org.microg.gms.nearby.core.ui
 
 import android.annotation.TargetApi
+import android.content.DialogInterface
 import android.os.Bundle
 import android.text.format.DateFormat
+import android.util.Log
+import android.widget.TextView
+import androidx.appcompat.app.AlertDialog
+import androidx.core.view.setPadding
 import androidx.lifecycle.lifecycleScope
+import androidx.preference.Preference
 import androidx.preference.PreferenceCategory
 import androidx.preference.PreferenceFragmentCompat
 import com.db.williamchart.data.Scale
@@ -23,6 +29,7 @@ import kotlin.math.roundToLong
 class ExposureNotificationsRpisFragment : PreferenceFragmentCompat() {
     private lateinit var histogramCategory: PreferenceCategory
     private lateinit var histogram: BarChartPreference
+    private lateinit var deleteAll: Preference
 
     override fun onCreatePreferences(savedInstanceState: Bundle?, rootKey: String?) {
         addPreferencesFromResource(R.xml.preferences_exposure_notifications_rpis)
@@ -31,6 +38,22 @@ class ExposureNotificationsRpisFragment : PreferenceFragmentCompat() {
     override fun onBindPreferences() {
         histogramCategory = preferenceScreen.findPreference("prefcat_exposure_rpi_histogram") ?: histogramCategory
         histogram = preferenceScreen.findPreference("pref_exposure_rpi_histogram") ?: histogram
+        deleteAll = preferenceScreen.findPreference("pref_exposure_rpi_delete_all") ?: deleteAll
+        deleteAll.onPreferenceClickListener = Preference.OnPreferenceClickListener {
+            AlertDialog.Builder(requireContext())
+                    .setTitle(R.string.pref_exposure_rpi_delete_all_title)
+                    .setView(R.layout.exposure_notification_confirm_delete)
+                    .setPositiveButton(R.string.pref_exposure_rpi_delete_all_warning_confirm_button) { _, _ ->
+                        lifecycleScope.launchWhenStarted {
+                            ExposureDatabase.with(requireContext()) { it.deleteAllCollectedAdvertisements() }
+                            updateChart()
+                        }
+                    }
+                    .setNegativeButton(android.R.string.cancel) { _, _ -> }
+                    .create()
+                    .show()
+            true
+        }
     }
 
     override fun onResume() {
@@ -66,6 +89,7 @@ class ExposureNotificationsRpisFragment : PreferenceFragmentCompat() {
                 val totalRpiCount = database.totalRpiCount
                 totalRpiCount to map
             }
+            deleteAll.isEnabled = totalRpiCount != 0L
             histogramCategory.title = getString(R.string.prefcat_exposure_rpis_histogram_title, totalRpiCount)
             histogram.labelsFormatter = { it.roundToInt().toString() }
             histogram.scale = Scale(0f, rpiHistogram.values.max()?.coerceAtLeast(0.1f) ?: 0.1f)

play-services-nearby-core-ui/src/main/res/layout/exposure_notification_confirm_delete.xml

@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--
+  ~ SPDX-FileCopyrightText: 2020, microG Project Team
+  ~ SPDX-License-Identifier: Apache-2.0
+  -->
+
+<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:orientation="vertical">
+
+    <TextView
+        android:padding="?attr/dialogPreferredPadding"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:text="@string/pref_exposure_rpi_delete_all_warning" />
+</FrameLayout>

play-services-nearby-core-ui/src/main/res/values-de/strings.xml

@@ -11,10 +11,18 @@
     <string name="pref_exposure_collected_rpis_title">Gesammelte IDs</string>
     <string name="pref_exposure_collected_rpis_summary"><xliff:g example="63">%1$d</xliff:g> IDs in den letzten 60 Minuten</string>
     <string name="pref_exposure_advertising_id_title">Aktuell verwendete ID</string>
-    <string name="pref_exposure_app_checks_summary"><xliff:g example="5">%1$d</xliff:g> Prüfungen während der letzen 14 Tage</string>
+    <string name="pref_exposure_app_last_report_title">Letzter Bericht (<xliff:g example="vor 2 Stunden">%1$s</xliff:g>)</string>
-    <string name="pref_exposure_app_last_check_summary">Letzte Prüfung: <xliff:g example="3 hours ago">%1$s</xliff:g></string>
+    <string name="pref_exposure_app_last_report_summary_diagnosis_keys"><xliff:g example="121031">%1$d</xliff:g> Diagnoseschlüssel verarbeitet.</string>
+    <string name="pref_exposure_app_last_report_summary_encounters_no">Keine Risiko-Begegnung erfasst.</string>
+    <string name="pref_exposure_app_last_report_summary_encounters_prefix"><xliff:g example="3">%1$d</xliff:g> Risiko-Begegnungen:</string>
+    <string name="pref_exposure_app_last_report_summary_encounters_line"><xliff:g example="Gestern, 12:00 - 12:30">%1$s</xliff:g>, Risiko-Level <xliff:g example="99">%2$d</xliff:g></string>
+    <string name="pref_exposure_app_last_report_summary_encounters_suffix">Hinweis: Der Risiko-Level wird durch die App bestimmt. Hohe Werte können ein niedriges Risiko bedeuten oder andersherum.</string>
+    <string name="pref_exposure_app_api_usage_title">Nutzung der API in den letzten 14 Tagen</string>
+    <string name="pref_exposure_app_api_usage_summary_line"><xliff:g example="12">%1$d</xliff:g> Aufrufe von <xliff:g example="provideDiagnosisKeys">%2$s</xliff:g></string>
     <string name="prefcat_exposure_rpis_histogram_title"><xliff:g example="230">%1$d</xliff:g> gesammelte IDs</string>
     <string name="pref_exposure_rpi_delete_all_title">Alle gesammelten IDs löschen</string>
+    <string name="pref_exposure_rpi_delete_all_warning">Nach dem Löschen der gesammelten IDs kannst du nicht mehr informiert werden, falls einer deiner Kontakte der letzten 14 Tage positiv getested wurde.</string>
+    <string name="pref_exposure_rpi_delete_all_warning_confirm_button">Trotzdem löschen</string>
     <string name="pref_exposure_info_summary">"Die Exposure Notifications API ermöglicht es Apps, dich zu warnen, falls du Kontakt zu einer positiv getesteten Person hattest.
 
 Das Datum, die Zeitdauer und die Signalstärke, die dem Kontakt zugeordnet sind, werden mit der zugehörigen App geteilt."</string>

play-services-nearby-core-ui/src/main/res/values/plurals.xml

@@ -1,23 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<!--
-  ~ Copyright (C) 2017 microG Project Team
-  ~
-  ~ Licensed under the Apache License, Version 2.0 (the "License");
-  ~ you may not use this file except in compliance with the License.
-  ~ You may obtain a copy of the License at
-  ~
-  ~     http://www.apache.org/licenses/LICENSE-2.0
-  ~
-  ~ Unless required by applicable law or agreed to in writing, software
-  ~ distributed under the License is distributed on an "AS IS" BASIS,
-  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-  ~ See the License for the specific language governing permissions and
-  ~ limitations under the License.
-  -->
-
-<resources xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
-    <plurals name="pref_exposure_app_last_report_summary">
-        <item quantity="one">Last report: <xliff:g example="1">%1$d</xliff:g> match, <xliff:g example="3">%2$d</xliff:g> days ago</item>
-        <item quantity="other">Last report: <xliff:g example="2">%1$d</xliff:g> matches, latest <xliff:g example="3">%2$d</xliff:g> days ago</item>
-    </plurals>
-</resources>

play-services-nearby-core-ui/src/main/res/values/strings.xml

@@ -21,10 +21,18 @@
     <string name="pref_exposure_collected_rpis_title">Collected IDs</string>
     <string name="pref_exposure_collected_rpis_summary"><xliff:g example="63">%1$d</xliff:g> IDs in last hour</string>
     <string name="pref_exposure_advertising_id_title">Currently broadcasted ID</string>
-    <string name="pref_exposure_app_checks_summary"><xliff:g example="5">%1$d</xliff:g> checks in past 14 days</string>
+    <string name="pref_exposure_app_last_report_title">Last report (<xliff:g example="3 hours ago">%1$s</xliff:g>)</string>
-    <string name="pref_exposure_app_last_check_summary">Last check: <xliff:g example="3 hours ago">%1$s</xliff:g></string>
+    <string name="pref_exposure_app_last_report_summary_diagnosis_keys">Processed <xliff:g example="121031">%1$d</xliff:g> diagnosis keys.</string>
+    <string name="pref_exposure_app_last_report_summary_encounters_no">No exposure encounters reported.</string>
+    <string name="pref_exposure_app_last_report_summary_encounters_prefix">Reported <xliff:g example="3">%1$d</xliff:g> exposure encounters:</string>
+    <string name="pref_exposure_app_last_report_summary_encounters_line"><xliff:g example="Yesterday, 12:00 - 14:00">%1$s</xliff:g>, risk score <xliff:g example="99">%2$d</xliff:g></string>
+    <string name="pref_exposure_app_last_report_summary_encounters_suffix">Note: The risk score is defined by the app. High numbers can refer to low risk or vice-versa.</string>
+    <string name="pref_exposure_app_api_usage_title">API usage in the last 14 days</string>
+    <string name="pref_exposure_app_api_usage_summary_line"><xliff:g example="12">%1$d</xliff:g> calls to <xliff:g example="provideDiagnosisKeys">%2$s</xliff:g></string>
     <string name="prefcat_exposure_rpis_histogram_title"><xliff:g example="230">%1$d</xliff:g> IDs collected</string>
     <string name="pref_exposure_rpi_delete_all_title">Delete all collected IDs</string>
+    <string name="pref_exposure_rpi_delete_all_warning">Deleting collected IDs will make it impossible to notify you in case any of your contacts of the last 14 days is diagnosed.</string>
+    <string name="pref_exposure_rpi_delete_all_warning_confirm_button">Delete anyways</string>
     <string name="pref_exposure_info_summary">"Exposure Notifications API allows apps to notify you if you were exposed to someone who reported to be diagnosed positive.
 
 The date, duration, and signal strength associated with an exposure will be shared with the corresponding app."</string>

play-services-nearby-core-ui/src/main/res/xml/preferences_exposure_notifications_app.xml

@@ -14,8 +14,16 @@
     </PreferenceCategory>
     <PreferenceCategory android:layout="@layout/preference_category_no_label">
         <Preference
-            android:key="pref_exposure_app_checks"
+            android:key="pref_exposure_app_report"
             android:selectable="false"
-            tools:summary="7 checks in past 14 days\nLast check: 3 hours ago\nLast report: 2 matches, latest 3 days ago" />
+            tools:summary="@string/pref_exposure_app_last_report_summary_encounters_no"
+            tools:title="@string/pref_exposure_app_last_report_title" />
+    </PreferenceCategory>
+    <PreferenceCategory android:layout="@layout/preference_category_no_label">
+        <Preference
+            android:key="pref_exposure_app_api_usage"
+            android:selectable="false"
+            android:title="@string/pref_exposure_app_api_usage_title"
+            tools:summary="@string/pref_exposure_app_api_usage_summary_line" />
     </PreferenceCategory>
 </PreferenceScreen>

play-services-nearby-core-ui/src/main/res/xml/preferences_exposure_notifications_rpis.xml

@@ -15,7 +15,6 @@
     </PreferenceCategory>
     <PreferenceCategory android:layout="@layout/preference_category_no_label">
         <Preference
-            android:enabled="false"
             android:key="pref_exposure_rpi_delete_all"
             android:title="@string/pref_exposure_rpi_delete_all_title" />
     </PreferenceCategory>

play-services-nearby-core/src/main/kotlin/org/microg/gms/nearby/exposurenotification/ExposureDatabase.kt

@@ -19,6 +19,7 @@ import com.google.android.gms.nearby.exposurenotification.ExposureConfiguration
 import com.google.android.gms.nearby.exposurenotification.TemporaryExposureKey
 import kotlinx.coroutines.*
 import okio.ByteString
+import org.json.JSONObject
 import java.io.File
 import java.lang.Runnable
 import java.nio.ByteBuffer
@@ -162,9 +163,6 @@ class ExposureDatabase private constructor(private val context: Context) : SQLit
         update(TABLE_TEK_CHECK_SINGLE, ContentValues().apply {
             put("matched", 0)
         }, null, null)
-        update(TABLE_TEK_CHECK_FILE, ContentValues().apply {
-            put("matched", 0)
-        }, null, null)
     }
 
     fun noteAppAction(packageName: String, method: String, args: String? = null, timestamp: Long = Date().time) = writableDatabase.run {
@@ -658,6 +656,34 @@ class ExposureDatabase private constructor(private val context: Context) : SQLit
         }
     }
 
+    fun countDiagnosisKeysInvolved(tid: Long): Long = readableDatabase.run {
+        val fromFile = rawQuery("SELECT SUM($TABLE_TEK_CHECK_FILE.keys) AS keys FROM $TABLE_TEK_CHECK_FILE_TOKEN JOIN $TABLE_TEK_CHECK_FILE ON $TABLE_TEK_CHECK_FILE_TOKEN.tcfid = $TABLE_TEK_CHECK_FILE.tcfid WHERE $TABLE_TEK_CHECK_FILE_TOKEN.tid = $tid;", null).use { cursor ->
+            if (cursor.moveToNext()) {
+                cursor.getLong(0)
+            } else {
+                0
+            }
+        }
+        val single = rawQuery("SELECT COUNT(*) as keys FROM $TABLE_TEK_CHECK_SINGLE_TOKEN WHERE $TABLE_TEK_CHECK_SINGLE_TOKEN.tid = $tid;", null).use { cursor ->
+            if (cursor.moveToNext()) {
+                cursor.getLong(0)
+            } else {
+                0
+            }
+        }
+        return fromFile + single
+    }
+
+    fun methodUsageHistogram(packageName: String): List<Pair<String, Int>> = readableDatabase.run {
+        val list = arrayListOf<Pair<String, Int>>()
+        rawQuery("SELECT method, COUNT(*) AS count FROM $TABLE_APP_LOG WHERE package = ? GROUP BY method;", arrayOf(packageName)).use { cursor ->
+            while (cursor.moveToNext()) {
+                list.add(cursor.getString(0) to cursor.getInt(1))
+            }
+        }
+        list.sortedByDescending { it.second }
+    }
+
     private fun ensureTemporaryExposureKey(): TemporaryExposureKey = writableDatabase.let { database ->
         database.beginTransactionNonExclusive()
         try {