From 49d8c8c3f17a505c619078172a096dc4ec2ca10d Mon Sep 17 00:00:00 2001
From: Xwite <1797350009@qq.com>
Date: Thu, 31 Mar 2022 11:42:00 +0800
Subject: [PATCH] =?UTF-8?q?feat:js=E6=B7=BB=E5=8A=A0importScript?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 app/src/main/assets/help/jsHelp.md            |  6 ++++
 .../java/io/legado/app/help/JsExtensions.kt   | 32 +++++++++++++++++++
 2 files changed, 38 insertions(+)

diff --git a/app/src/main/assets/help/jsHelp.md b/app/src/main/assets/help/jsHelp.md
index a23c29fab..40c368d58 100644
--- a/app/src/main/assets/help/jsHelp.md
+++ b/app/src/main/assets/help/jsHelp.md
@@ -59,6 +59,12 @@ java.ajaxAll(urlList: Array<String>): Array<StrResponse?>
 java.log(msg)
 java.logType(var)
 ```
+* 从网络(由java.cacheFile实现)、本地导入JavaScript脚本
+```
+{{java.importScript(url)}}
+{{java.importScript(relativePath)}}
+{{java.importScript(absolutePath)}}
+```
 * 缓存网络文件
 ```
 获取
diff --git a/app/src/main/java/io/legado/app/help/JsExtensions.kt b/app/src/main/java/io/legado/app/help/JsExtensions.kt
index b21f5ec69..28ad60458 100644
--- a/app/src/main/java/io/legado/app/help/JsExtensions.kt
+++ b/app/src/main/java/io/legado/app/help/JsExtensions.kt
@@ -10,6 +10,8 @@ import io.legado.app.constant.AppConst
 import io.legado.app.constant.AppConst.dateFormat
 import io.legado.app.constant.AppLog
 import io.legado.app.data.entities.BaseSource
+import io.legado.app.exception.NoStackTraceException
+import io.legado.app.help.config.AppConfig
 import io.legado.app.help.http.*
 import io.legado.app.model.Debug
 import io.legado.app.model.analyzeRule.AnalyzeUrl
@@ -127,6 +129,36 @@ interface JsExtensions {
         }
     }
 
+    /**
+     * 可从网络，本地文件(阅读私有缓存目录和书籍保存位置支持相对路径)导入JavaScript脚本
+     */
+    fun importScript(path: String): String {
+        var result: String = ""
+        when {
+            path.startsWith("http") -> result = cacheFile(path) ?: ""
+            path.isContentScheme() -> result = DocumentUtils.readText(appCtx, Uri.parse(path))
+            path.startsWith("/storage") -> result = FileUtils.readText(path)
+            else -> {
+                //先找书籍保存目录下有没有
+                val publicStoragePath = AppConfig.defaultBookTreeUri
+                val jsString = publicStoragePath?.let {
+                    val jsPath = if (path.startsWith("/")) path else "/" + path
+                    val filePathString = it + jsPath
+                    val fileUri = Uri.parse(filePathString)
+                    if (fileUri.isContentScheme()) {
+                        DocumentUtils.readText(appCtx, fileUri)
+                    } else {
+                        FileUtils.readText(fileUri.path!!)
+                    }
+                }
+                //私有目录
+                result = if (jsString.isNullOrBlank()) readTxtFile(path) else jsString
+            }
+        }
+        if (result.isBlank()) throw NoStackTraceException("${path} 内容获取失败或者为空")
+        return result
+    }
+
     /**
      * 缓存以文本方式保存的文件 如.js .txt等
      */