更新案例

广东省电子税务/cmd.txt

+node webpack_mixer.js -l loader.js -m chunk-libs.b0c22c98.js -o webpack_out.js
\ No newline at end of file

广东省电子税务/test.js

+
+const n = require('./webpack_out');
+
+
+var r = n("4953").sm2;
+
+var i = r.doEncrypt('bLCeJdtVwntlp6Qv', '043F320EC9A5B1315D2345A4B36573F145AC5EE4AD61BF4C93D6F208E897441688387E05350277B726F0BF00FF54535C477619966DBB55D6A9EF422D6CA2316FEB', 1);
+
+console.log(i)
\ No newline at end of file

广东省电子税务/webpack_mixer.js

+const parser = require("@babel/parser");
+const t = require("@babel/types");
+const generator = require("@babel/generator");
+const traverse = require("@babel/traverse").default;
+const fs = require("fs");
+
+function wtofile(path, flags, code) {
+    var fd = fs.openSync(path,flags);
+    fs.writeSync(fd, code);
+    fs.closeSync(fd);
+}
+
+function run(loader_path, out_path, modular_path) {
+    let js_code = fs.readFileSync(loader_path, {
+        encoding: "utf-8"
+    });
+
+    // 转换为AST语法树
+    let loader_ast = parser.parse(js_code);
+
+    // 获取加载器代码
+    let loader_body;
+    if (loader_ast.program.body[0].expression.type === 'UnaryExpression'){
+        loader_body = loader_ast.program.body[0].expression.argument.callee.body.body;
+    }else{
+        loader_body = loader_ast.program.body[0].expression.callee.body.body;
+    }
+    let export_function = null;
+    traverse(loader_ast, {
+        FunctionDeclaration(path){
+            if(path.toString().includes("exports:") && export_function == null){
+                export_function = path.node.id.name
+            }
+        }
+    });
+    if(export_function == null){
+        throw "未找到导出函数错误"
+    }
+
+    for (let i = 0; i < loader_body.length; i++){
+        let item = loader_body[i];
+        if(item.type === 'ExpressionStatement'){
+            if(item.expression.type === 'SequenceExpression' && item.expression.expressions[0].type === 'AssignmentExpression' && item.expression.expressions[0].left.type === 'MemberExpression' && item.expression.expressions[0].left.object.type === 'Identifier' && item.expression.expressions[0].left.object.name === export_function){
+                let j = item.expression.expressions.length - 1;
+                while (j >= 0){
+                    let item2 = item.expression.expressions[j];
+                    if(item2.left && item2.left.type === 'MemberExpression' && ((item2.left.object.type === 'Identifier' && item2.left.object.name === export_function) || (item2.left.object.type === 'MemberExpression' && item2.left.object.object.type === 'Identifier' && item2.left.object.object.name === export_function))){
+                        item.expression.expressions.splice(j + 1, item.expression.expressions.length - j - 1);
+                        break
+                    }else{
+                        j--;
+                    }
+                }
+                loader_body.splice(i + 1, loader_body.length - i - 1);
+                loader_body.push(t.expressionStatement(t.assignmentExpression("=", t.identifier("export_function"), t.identifier(export_function))));
+            }
+        }else if(item.type === 'ReturnStatement'){
+            loader_body[i] = t.expressionStatement(item.argument);
+            let j = 0;
+            while (j < loader_body[i].expression.expressions.length){
+                let item2 = loader_body[i].expression.expressions[j];
+                if(item2.left &&item2.left.type === 'MemberExpression' && item2.left.object.type === 'Identifier' && item2.left.object.name === export_function){
+                    j++
+                }else{
+                    loader_body[i].expression.expressions.splice(j, loader_body[i].expression.expressions.length - j);
+                    break
+                }
+            }
+            loader_body.push(t.expressionStatement(t.assignmentExpression("=", t.identifier("export_function"), t.identifier(export_function))));
+        }
+    }
+
+    // 导入加载器中的函数体
+    let loader_arguments;
+    if (loader_ast.program.body[0].expression.type === 'UnaryExpression'){
+        loader_arguments = loader_ast.program.body[0].expression.argument.arguments[0];
+    }else{
+        loader_arguments = loader_ast.program.body[0].expression.arguments[0];
+    }
+    if (loader_arguments.type === 'ArrayExpression'){
+        let tempobjectexpression = t.objectExpression([]);
+        loader_arguments.elements.forEach(function (item, index) {
+            if (item && item.type === 'FunctionExpression'){
+                tempobjectexpression.properties.push(t.objectProperty(
+                    t.numericLiteral(index),
+                    item,
+                    false,
+                    false
+                ));
+            }
+        });
+        loader_arguments = tempobjectexpression;
+    }
+
+    // 加载外部函数体
+    modular_path.forEach(function (item, index) {
+
+        var jscode = fs.readFileSync(item, {
+            encoding: "utf-8"
+        });
+
+        let modular_ast = parser.parse(jscode);
+        modular_ast.program.body[0].expression.arguments[0].elements.forEach(function (item2, index2) {
+            if (item2.type === 'ArrayExpression'){
+                item2.elements.forEach(function (item3, index3) {
+                    if (item3 && item3.type === 'FunctionExpression'){
+                        loader_arguments.properties.push(t.objectProperty(
+                            t.numericLiteral(index3),
+                            item3,
+                            false,
+                            false
+                        ));
+                    }
+                });
+            }else {
+                item2.properties.forEach(function (item3, index3) {
+                    loader_arguments.properties.push(item3)
+                })
+            }
+        });
+    });
+    if (loader_ast.program.body[0].expression.type === 'UnaryExpression'){
+        loader_ast.program.body[0].expression.argument.arguments[0] = loader_arguments;
+    }else{
+        loader_ast.program.body[0].expression.arguments[0] = loader_arguments;
+    }
+
+    // 申请全局导出函数
+    loader_ast.program.body.splice(0, 0, t.variableDeclaration("var",[t.variableDeclarator(t.identifier("export_function"))]));
+    // 导出函数
+    loader_ast.program.body.push(t.expressionStatement(t.assignmentExpression("=", t.memberExpression(t.identifier("module"), t.identifier("exports"), false), t.identifier("export_function"))));
+
+    let code = generator.default(loader_ast, {
+        compact: false,  // 压缩格式
+        comments: false,  // 注释
+        jsescOption: {
+            minimal: false // 转义
+        }
+    }).code;
+    wtofile(out_path, 'w', code);
+}
+
+!function () {
+    let loader_path, out_path;
+    let modular_path = [];
+    for(let i = 0; i < process.argv.length; i++){
+        if (process.argv[i] === '-l'){
+            loader_path = process.argv[i + 1];
+            i += 1;
+        }else if(process.argv[i] === '-m'){
+            modular_path.push(process.argv[i + 1]);
+            i += 1;
+        }else if(process.argv[i] === '-o'){
+            out_path = process.argv[i + 1];
+            i += 1;
+        }
+    }
+    if (loader_path && out_path){
+        run(loader_path, out_path, modular_path)
+    }
+}();
+
+
+
+
+
+
+