优化dataUri处理

app/src/main/java/io/legado/app/model/webBook/BookInfo.kt

@@ -127,9 +127,7 @@ object BookInfo {
         Debug.log(bookSource.bookSourceUrl, "┌获取封面链接")
         try {
             analyzeRule.getString(infoRule.coverUrl).let {
-                if (it.startsWith("data:")) {
+                if (it.isNotEmpty()) {
-                    book.coverUrl = it
-                } else if (it.isNotEmpty()) {
                     book.coverUrl =
                         NetworkUtils.getAbsoluteURL(baseUrl, it)
                 }

app/src/main/java/io/legado/app/model/webBook/BookList.kt

@@ -229,9 +229,7 @@ object BookList {
             Debug.log(bookSource.bookSourceUrl, "┌获取封面链接", log)
             try {
                 analyzeRule.getString(ruleCoverUrl).let {
-                    if (it.startsWith("data:")) {
+                    if (it.isNotEmpty()) {
-                        searchBook.coverUrl = it
-                    } else if (it.isNotEmpty()) {
                         searchBook.coverUrl =
                             NetworkUtils.getAbsoluteURL(baseUrl, it)
                     }

app/src/main/java/io/legado/app/utils/NetworkUtils.kt

@@ -4,6 +4,7 @@ import android.net.ConnectivityManager
 import android.net.NetworkCapabilities
 import android.os.Build
 import io.legado.app.constant.AppLog
+import io.legado.app.constant.AppPattern
 import okhttp3.internal.publicsuffix.PublicSuffixDatabase
 import splitties.systemservices.connectivityManager
 
@@ -110,6 +111,7 @@ object NetworkUtils {
     fun getAbsoluteURL(baseURL: String?, relativePath: String): String {
         if (baseURL.isNullOrEmpty()) return relativePath
         if (relativePath.isAbsUrl()) return relativePath
+        if (relativePath.matches(AppPattern.dataUriRegex)) return relativePath
         if (relativePath.startsWith("javascript")) return ""
         var relativeUrl = relativePath
         try {