支持离线下载书籍导出到webdav

app/src/main/java/io/legado/app/help/storage/WebDavHelp.kt

@@ -10,10 +10,7 @@ import io.legado.app.help.coroutine.Coroutine
 import io.legado.app.lib.dialogs.selector
 import io.legado.app.lib.webdav.WebDav
 import io.legado.app.lib.webdav.http.HttpAuth
-import io.legado.app.utils.FileUtils
-import io.legado.app.utils.ZipUtils
-import io.legado.app.utils.getPrefBoolean
-import io.legado.app.utils.getPrefString
+import io.legado.app.utils.*
 import kotlinx.coroutines.Dispatchers.IO
 import kotlinx.coroutines.Dispatchers.Main
 import kotlinx.coroutines.withContext
@@ -125,4 +122,24 @@ object WebDavHelp {
             }
         }
     }
+    fun exportWebDav(path: String, fileName: String) {
+        try {
+            if (initWebDav()) {
+                //默认导出到legado文件夹下exports目录
+                val exportsWebDavUrl = rootWebDavUrl + EncoderUtils.escape("exports") + "/"
+                //在legado文件夹创建exports目录,如果不存在的话
+                WebDav(exportsWebDavUrl).makeAsDir()
+                val file = File("${path}${File.separator}${fileName}")
+                //如果导出的本地文件存在,开始上传
+                if(file.exists()){
+                    val putUrl = exportsWebDavUrl + fileName
+                    WebDav(putUrl).upload("${path}${File.separator}${fileName}")
+                }
+            }
+        } catch (e: Exception) {
+            Handler(Looper.getMainLooper()).post {
+                App.INSTANCE.toast("WebDav导出\n${e.localizedMessage}")
+            }
+        }
+    }
 }

app/src/main/java/io/legado/app/ui/book/cache/CacheViewModel.kt

@@ -9,6 +9,7 @@ import io.legado.app.base.BaseViewModel
 import io.legado.app.constant.AppPattern
 import io.legado.app.data.entities.Book
 import io.legado.app.help.BookHelp
+import io.legado.app.help.storage.WebDavHelp
 import io.legado.app.utils.*
 import java.io.File
 
@@ -34,8 +35,19 @@ class CacheViewModel(application: Application) : BaseViewModel(application) {
     }
 
     private fun export(doc: DocumentFile, book: Book) {
-        DocumentUtils.createFileIfNotExist(doc, "${book.name} 作者:${book.author}.txt")
-            ?.writeText(context, getAllContents(book))
+        val filename = "${book.name} 作者:${book.author}.txt"
+        val content = getAllContents(book)
+        DocumentUtils.createFileIfNotExist(doc, filename)
+            ?.writeText(context, content)
+        //写出文件到cache目录
+        FileUtils.createFileIfNotExist(
+            File(FileUtils.getCachePath()),
+            filename
+        ).writeText(content)
+        //导出到webdav
+        WebDavHelp.exportWebDav(FileUtils.getCachePath(), filename)
+        //上传完删除cache文件
+        FileUtils.deleteFile("${FileUtils.getCachePath()}${File.separator}${filename}")
         App.db.bookChapterDao().getChapterList(book.bookUrl).forEach { chapter ->
             BookHelp.getContent(book, chapter).let { content ->
                 content?.split("\n")?.forEachIndexed { index, text ->
@@ -61,8 +73,10 @@ class CacheViewModel(application: Application) : BaseViewModel(application) {
     }
 
     private fun export(file: File, book: Book) {
-        FileUtils.createFileIfNotExist(file, "${book.name} 作者:${book.author}.txt")
+        val filename = "${book.name} 作者:${book.author}.txt"
+        FileUtils.createFileIfNotExist(file, filename)
             .writeText(getAllContents(book))
+        WebDavHelp.exportWebDav(file.absolutePath, filename)//导出到webdav
         App.db.bookChapterDao().getChapterList(book.bookUrl).forEach { chapter ->
             BookHelp.getContent(book, chapter).let { content ->
                 content?.split("\n")?.forEachIndexed { index, text ->