diff --git a/app/src/main/java/io/legado/app/lib/webdav/WebDav.kt b/app/src/main/java/io/legado/app/lib/webdav/WebDav.kt
index 02aa799f0..917c0b1b4 100644
--- a/app/src/main/java/io/legado/app/lib/webdav/WebDav.kt
+++ b/app/src/main/java/io/legado/app/lib/webdav/WebDav.kt
@@ -404,7 +404,7 @@ open class WebDav(
                 val supportBasicAuth = headers.any {
                     it.startsWith("Basic", ignoreCase = true)
                 }
-                if (!supportBasicAuth) {
+                if (headers.isNotEmpty() && !supportBasicAuth) {
                     AppLog.put("服务器不支持BasicAuth认证")
                 }
             }
diff --git a/app/src/main/java/io/legado/app/model/webBook/BookContent.kt b/app/src/main/java/io/legado/app/model/webBook/BookContent.kt
index 61b9581be..a6bbccb13 100644
--- a/app/src/main/java/io/legado/app/model/webBook/BookContent.kt
+++ b/app/src/main/java/io/legado/app/model/webBook/BookContent.kt
@@ -57,17 +57,16 @@ object BookContent {
         analyzeRule.chapter = bookChapter
         analyzeRule.nextChapterUrl = mNextChapterUrl
         coroutineContext.ensureActive()
-        contentRule.title?.let {
-            if (it.isNotBlank()) {
-                val title = analyzeRule.runCatching {
-                    getString(it)
-                }.onFailure { e ->
-                    Debug.log(bookSource.bookSourceUrl, "获取标题出错, ${e.localizedMessage}")
-                }.getOrNull()
-                if (!title.isNullOrBlank()) {
-                    bookChapter.title = title
-                    appDb.bookChapterDao.upDate(bookChapter)
-                }
+        val titleRule = contentRule.title
+        if (!titleRule.isNullOrBlank()) {
+            val title = analyzeRule.runCatching {
+                getString(titleRule)
+            }.onFailure {
+                Debug.log(bookSource.bookSourceUrl, "获取标题出错, ${it.localizedMessage}")
+            }.getOrNull()
+            if (!title.isNullOrBlank()) {
+                bookChapter.title = title
+                appDb.bookChapterDao.upDate(bookChapter)
             }
         }
         var contentData = analyzeContent(
diff --git a/app/src/main/java/io/legado/app/ui/rss/article/RssArticlesFragment.kt b/app/src/main/java/io/legado/app/ui/rss/article/RssArticlesFragment.kt
index 1fcbbc90c..98cf6dbdd 100644
--- a/app/src/main/java/io/legado/app/ui/rss/article/RssArticlesFragment.kt
+++ b/app/src/main/java/io/legado/app/ui/rss/article/RssArticlesFragment.kt
@@ -107,7 +107,7 @@ class RssArticlesFragment() : VMBaseFragment<RssArticlesViewModel>(R.layout.frag
 
     private fun loadArticles() {
         activityViewModel.rssSource?.let {
-            viewModel.loadContent(it)
+            viewModel.loadArticles(it)
         }
     }
 
diff --git a/app/src/main/java/io/legado/app/ui/rss/article/RssArticlesViewModel.kt b/app/src/main/java/io/legado/app/ui/rss/article/RssArticlesViewModel.kt
index 721a1d54c..550824143 100644
--- a/app/src/main/java/io/legado/app/ui/rss/article/RssArticlesViewModel.kt
+++ b/app/src/main/java/io/legado/app/ui/rss/article/RssArticlesViewModel.kt
@@ -11,8 +11,7 @@ import io.legado.app.data.entities.RssArticle
 import io.legado.app.data.entities.RssSource
 import io.legado.app.model.rss.Rss
 import io.legado.app.utils.stackTraceStr
-import kotlinx.coroutines.Dispatchers
-import kotlinx.coroutines.withContext
+import kotlinx.coroutines.Dispatchers.IO
 
 
 class RssArticlesViewModel(application: Application) : BaseViewModel(application) {
@@ -32,69 +31,62 @@ class RssArticlesViewModel(application: Application) : BaseViewModel(application
         }
     }
 
-    fun loadContent(rssSource: RssSource) {
+    fun loadArticles(rssSource: RssSource) {
         isLoading = true
         page = 1
         order = System.currentTimeMillis()
-        Rss.getArticles(viewModelScope, sortName, sortUrl, rssSource, page)
-            .onSuccess(Dispatchers.IO) {
-                nextPageUrl = it.second
-                it.first.let { list ->
-                    list.forEach { rssArticle ->
-                        rssArticle.order = order--
-                    }
-                    appDb.rssArticleDao.insert(*list.toTypedArray())
-                    if (!rssSource.ruleNextPage.isNullOrEmpty()) {
-                        appDb.rssArticleDao.clearOld(rssSource.sourceUrl, sortName, order)
-                    }
-                    val hasMore = list.isNotEmpty() && !rssSource.ruleNextPage.isNullOrEmpty()
-                    loadFinallyLiveData.postValue(hasMore)
-                    isLoading = false
-                }
-            }.onError {
-                loadFinallyLiveData.postValue(false)
-                AppLog.put("rss获取内容失败", it)
-                loadErrorLiveData.postValue(it.stackTraceStr)
+        Rss.getArticles(viewModelScope, sortName, sortUrl, rssSource, page).onSuccess(IO) {
+            nextPageUrl = it.second
+            val articles = it.first
+            articles.forEach { rssArticle ->
+                rssArticle.order = order--
             }
+            appDb.rssArticleDao.insert(*articles.toTypedArray())
+            if (!rssSource.ruleNextPage.isNullOrEmpty()) {
+                appDb.rssArticleDao.clearOld(rssSource.sourceUrl, sortName, order)
+            }
+            val hasMore = articles.isNotEmpty() && !rssSource.ruleNextPage.isNullOrEmpty()
+            loadFinallyLiveData.postValue(hasMore)
+            isLoading = false
+        }.onError {
+            loadFinallyLiveData.postValue(false)
+            AppLog.put("rss获取内容失败", it)
+            loadErrorLiveData.postValue(it.stackTraceStr)
+        }
     }
 
     fun loadMore(rssSource: RssSource) {
         isLoading = true
         page++
         val pageUrl = nextPageUrl
-        if (!pageUrl.isNullOrEmpty()) {
-            Rss.getArticles(viewModelScope, sortName, pageUrl, rssSource, page)
-                .onSuccess(Dispatchers.IO) {
-                    nextPageUrl = it.second
-                    loadMoreSuccess(it.first)
-                }
-                .onError {
-                    loadFinallyLiveData.postValue(false)
-                    AppLog.put("rss获取内容失败", it)
-                    loadErrorLiveData.postValue(it.stackTraceStr)
-                }
-        } else {
+        if (pageUrl.isNullOrEmpty()) {
             loadFinallyLiveData.postValue(false)
+            return
+        }
+        Rss.getArticles(viewModelScope, sortName, pageUrl, rssSource, page).onSuccess(IO) {
+            nextPageUrl = it.second
+            loadMoreSuccess(it.first)
+        }.onError {
+            loadFinallyLiveData.postValue(false)
+            AppLog.put("rss获取内容失败", it)
+            loadErrorLiveData.postValue(it.stackTraceStr)
         }
     }
 
     private fun loadMoreSuccess(articles: MutableList<RssArticle>) {
-        articles.let { list ->
-            if (list.isEmpty()) {
-                loadFinallyLiveData.postValue(false)
-                return@let
-            }
-            val firstArticle = list.first()
-            val dbArticle = appDb.rssArticleDao
-                .get(firstArticle.origin, firstArticle.link)
-            if (dbArticle != null) {
-                loadFinallyLiveData.postValue(false)
-            } else {
-                list.forEach { rssArticle ->
-                    rssArticle.order = order--
-                }
-                appDb.rssArticleDao.insert(*list.toTypedArray())
+        if (articles.isEmpty()) {
+            loadFinallyLiveData.postValue(false)
+            return
+        }
+        val firstArticle = articles.first()
+        val dbArticle = appDb.rssArticleDao.get(firstArticle.origin, firstArticle.link)
+        if (dbArticle != null) {
+            loadFinallyLiveData.postValue(false)
+        } else {
+            articles.forEach {
+                it.order = order--
             }
+            appDb.rssArticleDao.insert(*articles.toTypedArray())
         }
         isLoading = false
     }
diff --git a/app/src/main/java/io/legado/app/ui/rss/read/ReadRssViewModel.kt b/app/src/main/java/io/legado/app/ui/rss/read/ReadRssViewModel.kt
index df9456b78..5470f92ce 100644
--- a/app/src/main/java/io/legado/app/ui/rss/read/ReadRssViewModel.kt
+++ b/app/src/main/java/io/legado/app/ui/rss/read/ReadRssViewModel.kt
@@ -14,6 +14,7 @@ import io.legado.app.data.appDb
 import io.legado.app.data.entities.RssArticle
 import io.legado.app.data.entities.RssSource
 import io.legado.app.data.entities.RssStar
+import io.legado.app.exception.NoStackTraceException
 import io.legado.app.help.TTS
 import io.legado.app.help.http.newCallResponseBody
 import io.legado.app.help.http.okHttpClient
@@ -42,38 +43,35 @@ class ReadRssViewModel(application: Application) : BaseViewModel(application) {
 
     fun initData(intent: Intent) {
         execute {
-            val origin = intent.getStringExtra("origin")
+            val origin = intent.getStringExtra("origin") ?: return@execute
             val link = intent.getStringExtra("link")
-            origin?.let {
-                rssSource = appDb.rssSourceDao.getByKey(origin)
-                if (link != null) {
-                    rssStar = appDb.rssStarDao.get(origin, link)
-                    rssArticle = rssStar?.toRssArticle() ?: appDb.rssArticleDao.get(origin, link)
-                    rssArticle?.let { rssArticle ->
-                        if (!rssArticle.description.isNullOrBlank()) {
-                            contentLiveData.postValue(rssArticle.description!!)
-                        } else {
-                            rssSource?.let {
-                                val ruleContent = it.ruleContent
-                                if (!ruleContent.isNullOrBlank()) {
-                                    loadContent(rssArticle, ruleContent)
-                                } else {
-                                    loadUrl(rssArticle.link, rssArticle.origin)
-                                }
-                            } ?: loadUrl(rssArticle.link, rssArticle.origin)
-                        }
-                    }
+            rssSource = appDb.rssSourceDao.getByKey(origin)
+            if (link != null) {
+                rssStar = appDb.rssStarDao.get(origin, link)
+                rssArticle = rssStar?.toRssArticle() ?: appDb.rssArticleDao.get(origin, link)
+                val rssArticle = rssArticle ?: return@execute
+                if (!rssArticle.description.isNullOrBlank()) {
+                    contentLiveData.postValue(rssArticle.description!!)
                 } else {
-                    val ruleContent = rssSource?.ruleContent
-                    if (ruleContent.isNullOrBlank()) {
-                        loadUrl(origin, origin)
-                    } else {
-                        val rssArticle = RssArticle()
-                        rssArticle.origin = origin
-                        rssArticle.link = origin
-                        rssArticle.title = rssSource!!.sourceName
-                        loadContent(rssArticle, ruleContent)
-                    }
+                    rssSource?.let {
+                        val ruleContent = it.ruleContent
+                        if (!ruleContent.isNullOrBlank()) {
+                            loadContent(rssArticle, ruleContent)
+                        } else {
+                            loadUrl(rssArticle.link, rssArticle.origin)
+                        }
+                    } ?: loadUrl(rssArticle.link, rssArticle.origin)
+                }
+            } else {
+                val ruleContent = rssSource?.ruleContent
+                if (ruleContent.isNullOrBlank()) {
+                    loadUrl(origin, origin)
+                } else {
+                    val rssArticle = RssArticle()
+                    rssArticle.origin = origin
+                    rssArticle.link = origin
+                    rssArticle.title = rssSource!!.sourceName
+                    loadContent(rssArticle, ruleContent)
                 }
             }
         }.onFinally {
@@ -91,18 +89,17 @@ class ReadRssViewModel(application: Application) : BaseViewModel(application) {
     }
 
     private fun loadContent(rssArticle: RssArticle, ruleContent: String) {
-        rssSource?.let { source ->
-            Rss.getContent(viewModelScope, rssArticle, ruleContent, source)
-                .onSuccess(IO) { body ->
-                    rssArticle.description = body
-                    appDb.rssArticleDao.insert(rssArticle)
-                    rssStar?.let {
-                        it.description = body
-                        appDb.rssStarDao.insert(it)
-                    }
-                    contentLiveData.postValue(body)
+        val source = rssSource ?: return
+        Rss.getContent(viewModelScope, rssArticle, ruleContent, source)
+            .onSuccess(IO) { body ->
+                rssArticle.description = body
+                appDb.rssArticleDao.insert(rssArticle)
+                rssStar?.let {
+                    it.description = body
+                    appDb.rssStarDao.insert(it)
                 }
-        }
+                contentLiveData.postValue(body)
+            }
     }
 
     fun refresh(finish: () -> Unit) {
@@ -139,18 +136,8 @@ class ReadRssViewModel(application: Application) : BaseViewModel(application) {
         webPic ?: return
         execute {
             val fileName = "${AppConst.fileNameFormat.format(Date(System.currentTimeMillis()))}.jpg"
-            webData2bitmap(webPic)?.let { biteArray ->
-                if (uri.isContentScheme()) {
-                    DocumentFile.fromTreeUri(context, uri)?.let { doc ->
-                        DocumentUtils.createFileIfNotExist(doc, fileName)
-                            ?.writeBytes(context, biteArray)
-                    }
-                } else {
-                    val dir = File(uri.path ?: uri.toString())
-                    val file = FileUtils.createFileIfNotExist(dir, fileName)
-                    file.writeBytes(biteArray)
-                }
-            } ?: throw Throwable("NULL")
+            val byteArray = webData2bitmap(webPic) ?: throw NoStackTraceException("NULL")
+            uri.writeBytes(context, fileName, byteArray)
         }.onError {
             context.toastOnUi("保存图片失败:${it.localizedMessage}")
         }.onSuccess {
@@ -178,9 +165,11 @@ class ReadRssViewModel(application: Application) : BaseViewModel(application) {
                     $content
                 """.trimIndent()
             }
+
             content.contains("<style>".toRegex()) -> {
                 content
             }
+
             else -> {
                 """
                     <style>