Handle GeckoView EME permission requests.

This allows Fenix to play EME content without having to toggle manually
`media.eme.require-app-approval=false` in `about:config`.

Closes #7121

components/browser/engine-gecko-beta/src/main/java/mozilla/components/browser/engine/gecko/permission/GeckoPermissionRequest.kt

@@ -21,6 +21,7 @@ import org.mozilla.geckoview.GeckoSession.PermissionDelegate.PERMISSION_AUTOPLAY
 import org.mozilla.geckoview.GeckoSession.PermissionDelegate.PERMISSION_AUTOPLAY_INAUDIBLE
 import org.mozilla.geckoview.GeckoSession.PermissionDelegate.PERMISSION_DESKTOP_NOTIFICATION
 import org.mozilla.geckoview.GeckoSession.PermissionDelegate.PERMISSION_GEOLOCATION
+import org.mozilla.geckoview.GeckoSession.PermissionDelegate.PERMISSION_MEDIA_KEY_SYSTEM_ACCESS
 import org.mozilla.geckoview.GeckoSession.PermissionDelegate.PERMISSION_PERSISTENT_STORAGE
 import java.util.UUID
 
@@ -59,7 +60,8 @@ sealed class GeckoPermissionRequest constructor(
                 PERMISSION_GEOLOCATION to Permission.ContentGeoLocation(),
                 PERMISSION_AUTOPLAY_AUDIBLE to Permission.ContentAutoPlayAudible(),
                 PERMISSION_AUTOPLAY_INAUDIBLE to Permission.ContentAutoPlayInaudible(),
-                PERMISSION_PERSISTENT_STORAGE to Permission.ContentPersistentStorage()
+                PERMISSION_PERSISTENT_STORAGE to Permission.ContentPersistentStorage(),
+                PERMISSION_MEDIA_KEY_SYSTEM_ACCESS to Permission.ContentMediaKeySystemAccess()
             )
         }
     }

components/browser/engine-gecko-nightly/src/main/java/mozilla/components/browser/engine/gecko/permission/GeckoPermissionRequest.kt

@@ -21,6 +21,7 @@ import org.mozilla.geckoview.GeckoSession.PermissionDelegate.PERMISSION_AUTOPLAY
 import org.mozilla.geckoview.GeckoSession.PermissionDelegate.PERMISSION_AUTOPLAY_INAUDIBLE
 import org.mozilla.geckoview.GeckoSession.PermissionDelegate.PERMISSION_DESKTOP_NOTIFICATION
 import org.mozilla.geckoview.GeckoSession.PermissionDelegate.PERMISSION_GEOLOCATION
+import org.mozilla.geckoview.GeckoSession.PermissionDelegate.PERMISSION_MEDIA_KEY_SYSTEM_ACCESS
 import org.mozilla.geckoview.GeckoSession.PermissionDelegate.PERMISSION_PERSISTENT_STORAGE
 import java.util.UUID
 
@@ -59,7 +60,8 @@ sealed class GeckoPermissionRequest constructor(
                 PERMISSION_GEOLOCATION to Permission.ContentGeoLocation(),
                 PERMISSION_AUTOPLAY_AUDIBLE to Permission.ContentAutoPlayAudible(),
                 PERMISSION_AUTOPLAY_INAUDIBLE to Permission.ContentAutoPlayInaudible(),
-                PERMISSION_PERSISTENT_STORAGE to Permission.ContentPersistentStorage()
+                PERMISSION_PERSISTENT_STORAGE to Permission.ContentPersistentStorage(),
+                PERMISSION_MEDIA_KEY_SYSTEM_ACCESS to Permission.ContentMediaKeySystemAccess()
             )
         }
     }

components/browser/engine-gecko/src/main/java/mozilla/components/browser/engine/gecko/permission/GeckoPermissionRequest.kt

@@ -21,6 +21,7 @@ import org.mozilla.geckoview.GeckoSession.PermissionDelegate.PERMISSION_AUTOPLAY
 import org.mozilla.geckoview.GeckoSession.PermissionDelegate.PERMISSION_AUTOPLAY_INAUDIBLE
 import org.mozilla.geckoview.GeckoSession.PermissionDelegate.PERMISSION_DESKTOP_NOTIFICATION
 import org.mozilla.geckoview.GeckoSession.PermissionDelegate.PERMISSION_GEOLOCATION
+import org.mozilla.geckoview.GeckoSession.PermissionDelegate.PERMISSION_MEDIA_KEY_SYSTEM_ACCESS
 import org.mozilla.geckoview.GeckoSession.PermissionDelegate.PERMISSION_PERSISTENT_STORAGE
 import java.util.UUID
 
@@ -59,7 +60,8 @@ sealed class GeckoPermissionRequest constructor(
                 PERMISSION_GEOLOCATION to Permission.ContentGeoLocation(),
                 PERMISSION_AUTOPLAY_AUDIBLE to Permission.ContentAutoPlayAudible(),
                 PERMISSION_AUTOPLAY_INAUDIBLE to Permission.ContentAutoPlayInaudible(),
-                PERMISSION_PERSISTENT_STORAGE to Permission.ContentPersistentStorage()
+                PERMISSION_PERSISTENT_STORAGE to Permission.ContentPersistentStorage(),
+                PERMISSION_MEDIA_KEY_SYSTEM_ACCESS to Permission.ContentMediaKeySystemAccess()
             )
         }
     }

components/concept/engine/src/main/java/mozilla/components/concept/engine/permission/PermissionRequest.kt

@@ -80,6 +80,8 @@ sealed class Permission {
     data class ContentAutoPlayAudible(override val id: String? = "", override val desc: String? = "") : Permission()
     data class ContentAutoPlayInaudible(override val id: String? = "", override val desc: String? = "") : Permission()
     data class ContentPersistentStorage(override val id: String? = "", override val desc: String? = "") : Permission()
+    data class ContentMediaKeySystemAccess(override val id: String? = "", override val desc: String? = "") :
+            Permission()
 
     data class AppCamera(override val id: String? = "", override val desc: String? = "") : Permission()
     data class AppAudio(override val id: String? = "", override val desc: String? = "") : Permission()

components/feature/sitepermissions/schemas/mozilla.components.feature.sitepermissions.db.SitePermissionsDatabase/4.json

@@ -0,0 +1,94 @@
+{
+  "formatVersion": 1,
+  "database": {
+    "version": 4,
+    "identityHash": "f5379c8eb4f1519eb5994e508626ca10",
+    "entities": [
+      {
+        "tableName": "site_permissions",
+        "createSql": "CREATE TABLE IF NOT EXISTS `${TABLE_NAME}` (`origin` TEXT NOT NULL, `location` INTEGER NOT NULL, `notification` INTEGER NOT NULL, `microphone` INTEGER NOT NULL, `camera` INTEGER NOT NULL, `bluetooth` INTEGER NOT NULL, `local_storage` INTEGER NOT NULL, `autoplay_audible` INTEGER NOT NULL, `autoplay_inaudible` INTEGER NOT NULL, `media_key_system_access` INTEGER NOT NULL, `saved_at` INTEGER NOT NULL, PRIMARY KEY(`origin`))",
+        "fields": [
+          {
+            "fieldPath": "origin",
+            "columnName": "origin",
+            "affinity": "TEXT",
+            "notNull": true
+          },
+          {
+            "fieldPath": "location",
+            "columnName": "location",
+            "affinity": "INTEGER",
+            "notNull": true
+          },
+          {
+            "fieldPath": "notification",
+            "columnName": "notification",
+            "affinity": "INTEGER",
+            "notNull": true
+          },
+          {
+            "fieldPath": "microphone",
+            "columnName": "microphone",
+            "affinity": "INTEGER",
+            "notNull": true
+          },
+          {
+            "fieldPath": "camera",
+            "columnName": "camera",
+            "affinity": "INTEGER",
+            "notNull": true
+          },
+          {
+            "fieldPath": "bluetooth",
+            "columnName": "bluetooth",
+            "affinity": "INTEGER",
+            "notNull": true
+          },
+          {
+            "fieldPath": "localStorage",
+            "columnName": "local_storage",
+            "affinity": "INTEGER",
+            "notNull": true
+          },
+          {
+            "fieldPath": "autoplayAudible",
+            "columnName": "autoplay_audible",
+            "affinity": "INTEGER",
+            "notNull": true
+          },
+          {
+            "fieldPath": "autoplayInaudible",
+            "columnName": "autoplay_inaudible",
+            "affinity": "INTEGER",
+            "notNull": true
+          },
+          {
+            "fieldPath": "mediaKeySystemAccess",
+            "columnName": "media_key_system_access",
+            "affinity": "INTEGER",
+            "notNull": true
+          },
+          {
+            "fieldPath": "savedAt",
+            "columnName": "saved_at",
+            "affinity": "INTEGER",
+            "notNull": true
+          }
+        ],
+        "primaryKey": {
+          "columnNames": [
+            "origin"
+          ],
+          "autoGenerate": false
+        },
+        "indices": [],
+        "foreignKeys": []
+      }
+    ],
+    "views": [],
+    "setupQueries": [
+      "CREATE TABLE IF NOT EXISTS room_master_table (id INTEGER PRIMARY KEY,identity_hash TEXT)",
+      "INSERT OR REPLACE INTO room_master_table (id,identity_hash) VALUES(42, 'f5379c8eb4f1519eb5994e508626ca10')"
+    ]
+  }
+}

components/feature/sitepermissions/src/androidTest/java/mozilla/components/feature/sitepermissions/db/OnDeviceSitePermissionsStorageTest.kt

@@ -127,4 +127,29 @@ class OnDeviceSitePermissionsStorageTest {
             assertEquals(Status.ALLOWED.id, cursor.getInt(cursor.getColumnIndexOrThrow("autoplay_inaudible")))
         }
     }
+
+    @Test
+    fun migrate3to4() {
+        helper.createDatabase(MIGRATION_TEST_DB, 3).apply {
+            query("SELECT * FROM site_permissions").use { cursor ->
+                assertEquals(10, cursor.columnCount)
+            }
+            execSQL(
+                    "INSERT INTO " +
+                            "site_permissions " +
+                            "(origin, location, notification, microphone,camera,bluetooth,local_storage,autoplay_audible,autoplay_inaudible,saved_at) " +
+                            "VALUES " +
+                            "('mozilla.org',1,1,1,1,1,1,1,1,1)"
+            )
+        }
+
+        val dbVersion3 = helper.runMigrationsAndValidate(MIGRATION_TEST_DB, 4, true, Migrations.migration_3_4)
+
+        dbVersion3.query("SELECT * FROM site_permissions").use { cursor ->
+            assertEquals(11, cursor.columnCount)
+
+            cursor.moveToFirst()
+            assertEquals(Status.NO_DECISION.id, cursor.getInt(cursor.getColumnIndexOrThrow("media_key_system_access")))
+        }
+    }
 }

components/feature/sitepermissions/src/main/java/mozilla/components/feature/sitepermissions/SitePermissions.kt

@@ -23,6 +23,7 @@ data class SitePermissions(
     val localStorage: Status = NO_DECISION,
     val autoplayAudible: Status = NO_DECISION,
     val autoplayInaudible: Status = NO_DECISION,
+    val mediaKeySystemAccess: Status = NO_DECISION,
     val savedAt: Long
 ) : Parcelable {
     enum class Status(
@@ -53,6 +54,7 @@ data class SitePermissions(
             Permission.LOCATION -> location
             Permission.AUTOPLAY_AUDIBLE -> autoplayAudible
             Permission.AUTOPLAY_INAUDIBLE -> autoplayInaudible
+            Permission.MEDIA_KEY_SYSTEM_ACCESS -> mediaKeySystemAccess
         }
     }
 }

components/feature/sitepermissions/src/main/java/mozilla/components/feature/sitepermissions/SitePermissionsFeature.kt

@@ -35,6 +35,7 @@ import mozilla.components.concept.engine.permission.Permission.ContentNotificati
 import mozilla.components.concept.engine.permission.Permission.ContentVideoCamera
 import mozilla.components.concept.engine.permission.Permission.ContentVideoCapture
 import mozilla.components.concept.engine.permission.Permission.ContentPersistentStorage
+import mozilla.components.concept.engine.permission.Permission.ContentMediaKeySystemAccess
 import mozilla.components.concept.engine.permission.Permission.AppLocationCoarse
 import mozilla.components.concept.engine.permission.Permission.AppLocationFine
 import mozilla.components.concept.engine.permission.Permission.AppAudio
@@ -438,6 +439,9 @@ class SitePermissionsFeature(
                 is ContentPersistentStorage -> {
                     permissionFromStore.localStorage.doNotAskAgain()
                 }
+                is ContentMediaKeySystemAccess -> {
+                    permissionFromStore.mediaKeySystemAccess.doNotAskAgain()
+                }
                 else -> false
             }
         }
@@ -499,6 +503,9 @@ class SitePermissionsFeature(
             is ContentPersistentStorage -> {
                 sitePermissions.copy(localStorage = status)
             }
+            is ContentMediaKeySystemAccess -> {
+                sitePermissions.copy(mediaKeySystemAccess = status)
+            }
             else ->
                 throw InvalidParameterException("$permission is not a valid permission.")
         }
@@ -526,6 +533,7 @@ class SitePermissionsFeature(
         }
     }
 
+    @Suppress("LongMethod")
     @VisibleForTesting
     internal fun handlingSingleContentPermissions(
         permissionRequest: PermissionRequest,
@@ -592,6 +600,17 @@ class SitePermissionsFeature(
                     shouldSelectRememberChoice = true
                 )
             }
+            is ContentMediaKeySystemAccess -> {
+                createSinglePermissionPrompt(
+                    context,
+                    host,
+                    permissionRequest,
+                    R.string.mozac_feature_sitepermissions_media_key_system_access_title,
+                    R.drawable.mozac_ic_link,
+                    showDoNotAskAgainCheckBox = false,
+                    shouldSelectRememberChoice = true
+                )
+            }
             else ->
                 throw InvalidParameterException("$permission is not a valid permission.")
         }
@@ -727,6 +746,9 @@ internal fun isPermissionGranted(
         is ContentPersistentStorage -> {
             permissionFromStorage.localStorage.isAllowed()
         }
+        is ContentMediaKeySystemAccess -> {
+            permissionFromStorage.mediaKeySystemAccess.isAllowed()
+        }
         else ->
             throw InvalidParameterException("$permission is not a valid permission.")
     }
@@ -739,7 +761,8 @@ private fun Permission.isSupported(): Boolean {
         is ContentPersistentStorage,
         is ContentAudioCapture, is ContentAudioMicrophone,
         is ContentVideoCamera, is ContentVideoCapture,
-        is ContentAutoPlayAudible, is ContentAutoPlayInaudible -> true
+        is ContentAutoPlayAudible, is ContentAutoPlayInaudible,
+        is ContentMediaKeySystemAccess -> true
         else -> false
     }
 }

components/feature/sitepermissions/src/main/java/mozilla/components/feature/sitepermissions/SitePermissionsRules.kt

@@ -19,7 +19,8 @@ data class SitePermissionsRules internal constructor(
     val microphone: Action,
     val autoplayAudible: Action,
     val autoplayInaudible: Action,
-    val persistentStorage: Action
+    val persistentStorage: Action,
+    val mediaKeySystemAccess: Action
 ) {
 
     constructor(
@@ -29,15 +30,17 @@ data class SitePermissionsRules internal constructor(
         microphone: Action,
         autoplayAudible: AutoplayAction,
         autoplayInaudible: AutoplayAction,
-        persistentStorage: Action
+        persistentStorage: Action,
+        mediaKeySystemAccess: Action
     ) : this(
         camera = camera,
         location = location,
         notification = notification,
         microphone = microphone,
         autoplayAudible = autoplayAudible.toAction(),
         autoplayInaudible = autoplayInaudible.toAction(),
-        persistentStorage = persistentStorage
+        persistentStorage = persistentStorage,
+        mediaKeySystemAccess = mediaKeySystemAccess
     )
 
     enum class Action {
@@ -93,6 +96,9 @@ data class SitePermissionsRules internal constructor(
             is Permission.ContentAutoPlayInaudible -> {
                 autoplayInaudible
             }
+            is Permission.ContentMediaKeySystemAccess -> {
+                mediaKeySystemAccess
+            }
             else -> ASK_TO_ALLOW
         }
     }
@@ -118,6 +124,7 @@ data class SitePermissionsRules internal constructor(
                 autoplayAudible = autoplayAudible.toStatus(),
                 autoplayInaudible = autoplayInaudible.toStatus(),
                 localStorage = persistentStorage.toStatus(),
+                mediaKeySystemAccess = mediaKeySystemAccess.toStatus(),
                 savedAt = savedAt
         )
     }

components/feature/sitepermissions/src/main/java/mozilla/components/feature/sitepermissions/SitePermissionsStorage.kt

@@ -23,6 +23,7 @@ import mozilla.components.feature.sitepermissions.SitePermissionsStorage.Permiss
 import mozilla.components.feature.sitepermissions.SitePermissionsStorage.Permission.NOTIFICATION
 import mozilla.components.feature.sitepermissions.SitePermissionsStorage.Permission.AUTOPLAY_AUDIBLE
 import mozilla.components.feature.sitepermissions.SitePermissionsStorage.Permission.AUTOPLAY_INAUDIBLE
+import mozilla.components.feature.sitepermissions.SitePermissionsStorage.Permission.MEDIA_KEY_SYSTEM_ACCESS
 import mozilla.components.feature.sitepermissions.db.SitePermissionsDatabase
 import mozilla.components.feature.sitepermissions.db.toSitePermissionsEntity
 
@@ -116,6 +117,7 @@ class SitePermissionsStorage(
                 map.putIfAllowed(LOCATION, location, permission)
                 map.putIfAllowed(AUTOPLAY_AUDIBLE, autoplayAudible, permission)
                 map.putIfAllowed(AUTOPLAY_INAUDIBLE, autoplayInaudible, permission)
+                map.putIfAllowed(MEDIA_KEY_SYSTEM_ACCESS, mediaKeySystemAccess, permission)
             }
         }
         return map
@@ -173,6 +175,6 @@ class SitePermissionsStorage(
 
     enum class Permission {
         MICROPHONE, BLUETOOTH, CAMERA, LOCAL_STORAGE, NOTIFICATION, LOCATION, AUTOPLAY_AUDIBLE,
-        AUTOPLAY_INAUDIBLE
+        AUTOPLAY_INAUDIBLE, MEDIA_KEY_SYSTEM_ACCESS
     }
 }

components/feature/sitepermissions/src/main/java/mozilla/components/feature/sitepermissions/db/SitePermissionsDatabase.kt

@@ -17,7 +17,7 @@ import mozilla.components.feature.sitepermissions.SitePermissions
 /**
  * Internal database for saving site permissions.
  */
-@Database(entities = [SitePermissionsEntity::class], version = 3)
+@Database(entities = [SitePermissionsEntity::class], version = 4)
 @TypeConverters(StatusConverter::class)
 internal abstract class SitePermissionsDatabase : RoomDatabase() {
     abstract fun sitePermissionsDao(): SitePermissionsDao
@@ -38,6 +38,8 @@ internal abstract class SitePermissionsDatabase : RoomDatabase() {
                 Migrations.migration_1_2
             ).addMigrations(
                 Migrations.migration_2_3
+            ).addMigrations(
+                Migrations.migration_3_4
             ).build().also { instance = it }
         }
     }
@@ -98,4 +100,17 @@ internal object Migrations {
             }
         }
     }
+
+    @Suppress("MagicNumber")
+    val migration_3_4 = object : Migration(3, 4) {
+        override fun migrate(database: SupportSQLiteDatabase) {
+            val hasEmeColumn = database.query("SELECT * FROM site_permissions").columnCount == 11
+            if (!hasEmeColumn) {
+                database.execSQL(
+                        "ALTER TABLE site_permissions ADD COLUMN media_key_system_access INTEGER NOT NULL DEFAULT 0")
+                // default is NO_DECISION
+                database.execSQL("UPDATE site_permissions SET media_key_system_access = 0")
+            }
+        }
+    }
 }