js添加cache变量,可以用来存储token之类的变量,可以设置时效

app/src/main/java/io/legado/app/data/AppDatabase.kt

@@ -17,8 +17,8 @@ import java.util.*
     entities = [Book::class, BookGroup::class, BookSource::class, BookChapter::class,
         ReplaceRule::class, SearchBook::class, SearchKeyword::class, Cookie::class,
         RssSource::class, Bookmark::class, RssArticle::class, RssReadRecord::class,
-        RssStar::class, TxtTocRule::class, ReadRecord::class, HttpTTS::class],
+        RssStar::class, TxtTocRule::class, ReadRecord::class, HttpTTS::class, Cache::class],
-    version = 23,
+    version = 24,
     exportSchema = true
 )
 abstract class AppDatabase : RoomDatabase() {
@@ -38,6 +38,7 @@ abstract class AppDatabase : RoomDatabase() {
     abstract fun txtTocRule(): TxtTocRuleDao
     abstract fun readRecordDao(): ReadRecordDao
     abstract fun httpTTSDao(): HttpTTSDao
+    abstract fun cacheDao(): CacheDao
 
     companion object {
 
@@ -58,7 +59,8 @@ abstract class AppDatabase : RoomDatabase() {
                     migration_19_20,
                     migration_20_21,
                     migration_21_22,
-                    migration_22_23
+                    migration_22_23,
+                    migration_23_24
                 )
                 .allowMainThreadQueries()
                 .addCallback(dbCallback)
@@ -201,6 +203,13 @@ abstract class AppDatabase : RoomDatabase() {
                 database.execSQL("ALTER TABLE chapters ADD baseUrl TEXT NOT NULL DEFAULT ''")
             }
         }
+
+        private val migration_23_24 = object : Migration(23, 24) {
+            override fun migrate(database: SupportSQLiteDatabase) {
+                database.execSQL("CREATE TABLE IF NOT EXISTS `caches` (`key` TEXT NOT NULL, `value` TEXT, `deadline` INTEGER NOT NULL, PRIMARY KEY(`key`))")
+                database.execSQL("CREATE UNIQUE INDEX IF NOT EXISTS `index_caches_key` ON `caches` (`key`)")
+            }
+        }
     }
 
 }

app/src/main/java/io/legado/app/data/dao/CacheDao.kt

@@ -0,0 +1,24 @@
+package io.legado.app.data.dao
+
+import androidx.room.Dao
+import androidx.room.Insert
+import androidx.room.OnConflictStrategy
+import androidx.room.Query
+import io.legado.app.data.entities.Cache
+
+@Dao
+interface CacheDao {
+
+    @Query("select value from caches where `key` = :key and (deadline = 0 or deadline > :now)")
+    fun get(key: String, now: Long): String?
+
+    @Insert(onConflict = OnConflictStrategy.REPLACE)
+    fun insert(vararg cache: Cache)
+
+    @Query("delete from caches where `key` = :key")
+    fun delete(key: String)
+
+    @Query("delete from caches where deadline > 0 and deadline < :now")
+    fun clearDeadline(now: Long)
+
+}

app/src/main/java/io/legado/app/data/entities/BookSource.kt

@@ -8,6 +8,7 @@ import io.legado.app.constant.AppConst
 import io.legado.app.constant.BookType
 import io.legado.app.data.entities.rule.*
 import io.legado.app.help.AppConfig
+import io.legado.app.help.CacheManager
 import io.legado.app.help.JsExtensions
 import io.legado.app.help.http.CookieStore
 import io.legado.app.utils.ACache
@@ -111,6 +112,7 @@ data class BookSource(
                             bindings["baseUrl"] = bookSourceUrl
                             bindings["java"] = this
                             bindings["cookie"] = CookieStore
+                            bindings["cache"] = CacheManager
                             a = AppConst.SCRIPT_ENGINE.eval(
                                 it.substring(4, it.lastIndexOf("<")),
                                 bindings
@@ -139,6 +141,7 @@ data class BookSource(
         val bindings = SimpleBindings()
         bindings["java"] = this
         bindings["cookie"] = CookieStore
+        bindings["cache"] = CacheManager
         return AppConst.SCRIPT_ENGINE.eval(jsStr, bindings)
     }
 

app/src/main/java/io/legado/app/data/entities/Cache.kt

@@ -0,0 +1,13 @@
+package io.legado.app.data.entities
+
+import androidx.room.Entity
+import androidx.room.Index
+import androidx.room.PrimaryKey
+
+@Entity(tableName = "caches", indices = [(Index(value = ["key"], unique = true))])
+data class Cache(
+    @PrimaryKey
+    val key: String = "",
+    var value: String? = null,
+    var deadline: Long = 0L
+)

app/src/main/java/io/legado/app/data/entities/RssSource.kt

@@ -6,6 +6,7 @@ import androidx.room.Index
 import androidx.room.PrimaryKey
 import io.legado.app.constant.AppConst
 import io.legado.app.help.AppConfig
+import io.legado.app.help.CacheManager
 import io.legado.app.help.JsExtensions
 import io.legado.app.help.http.CookieStore
 import io.legado.app.utils.GSON
@@ -78,6 +79,7 @@ data class RssSource(
         val bindings = SimpleBindings()
         bindings["java"] = this
         bindings["cookie"] = CookieStore
+        bindings["cache"] = CacheManager
         return AppConst.SCRIPT_ENGINE.eval(jsStr, bindings)
     }
 

app/src/main/java/io/legado/app/help/CacheManager.kt

@@ -0,0 +1,34 @@
+package io.legado.app.help
+
+import io.legado.app.App
+import io.legado.app.data.entities.Cache
+
+object CacheManager {
+
+    fun put(key: String, value: Any, saveTime: Int = 0) {
+        val deadline = if (saveTime == 0) 0 else System.currentTimeMillis() + saveTime * 1000
+        val cache = Cache(key, value.toString(), deadline)
+        App.db.cacheDao().insert(cache)
+    }
+
+    fun get(key: String): String? {
+        return App.db.cacheDao().get(key, System.currentTimeMillis())
+    }
+
+    fun getInt(key: String): Int? {
+        return get(key)?.toIntOrNull()
+    }
+
+    fun getLong(key: String): Long? {
+        return get(key)?.toLongOrNull()
+    }
+
+    fun getDouble(key: String): Double? {
+        return get(key)?.toDoubleOrNull()
+    }
+
+    fun getFloat(key: String): Float? {
+        return get(key)?.toFloatOrNull()
+    }
+
+}

app/src/main/java/io/legado/app/model/analyzeRule/AnalyzeRule.kt

@@ -6,6 +6,7 @@ import io.legado.app.constant.AppConst.SCRIPT_ENGINE
 import io.legado.app.constant.AppPattern.JS_PATTERN
 import io.legado.app.data.entities.BaseBook
 import io.legado.app.data.entities.BookChapter
+import io.legado.app.help.CacheManager
 import io.legado.app.help.JsExtensions
 import io.legado.app.help.http.CookieStore
 import io.legado.app.utils.*
@@ -651,6 +652,7 @@ class AnalyzeRule(var book: BaseBook? = null) : JsExtensions {
         val bindings = SimpleBindings()
         bindings["java"] = this
         bindings["cookie"] = CookieStore
+        bindings["cache"] = CacheManager
         bindings["book"] = book
         bindings["result"] = result
         bindings["baseUrl"] = baseUrl

app/src/main/java/io/legado/app/model/analyzeRule/AnalyzeUrl.kt

@@ -12,6 +12,7 @@ import io.legado.app.constant.AppPattern.JS_PATTERN
 import io.legado.app.data.entities.BaseBook
 import io.legado.app.data.entities.BookChapter
 import io.legado.app.help.AppConfig
+import io.legado.app.help.CacheManager
 import io.legado.app.help.JsExtensions
 import io.legado.app.help.http.*
 import io.legado.app.help.http.api.HttpGetApi
@@ -139,6 +140,7 @@ class AnalyzeUrl(
             val bindings = SimpleBindings()
             bindings["java"] = this
             bindings["cookie"] = CookieStore
+            bindings["cache"] = CacheManager
             bindings["baseUrl"] = baseUrl
             bindings["page"] = page
             bindings["key"] = key
@@ -261,6 +263,7 @@ class AnalyzeUrl(
         val bindings = SimpleBindings()
         bindings["java"] = this
         bindings["cookie"] = CookieStore
+        bindings["cache"] = CacheManager
         bindings["page"] = page
         bindings["key"] = key
         bindings["speakText"] = speakText