file open

Author: stepbystepcode

file_controller.cc

@@ -33,4 +33,16 @@ std::string genTree(const HttpRequestPtr &req, std::function<void(const HttpResp
     res ->setBody(result);  
     callback(res);
     return result;
-}
+}
+std::string catFile(const HttpRequestPtr &req, std::function<void(const HttpResponsePtr &)> &&callback)
+{
+    char *pathvar;
+    pathvar = getenv("PWD");
+    std::string path = req->getParameter("path");
+    std::string result = shell_commons(("cat "+std::string(pathvar)+"/../root/"+path).c_str()) ;
+    auto res = HttpResponse::newHttpResponse();
+    res->addHeader("Access-Control-Allow-Origin", "*");
+    res ->setBody(result);  
+    callback(res);
+    return result;
+}

file_controller.h

@@ -5,5 +5,6 @@
 using namespace drogon;
 std::string shell_commons(const char* cmd);
 std::string genTree(const HttpRequestPtr &req, std::function<void(const HttpResponsePtr &)> &&callback);
+std::string catFile(const HttpRequestPtr &req, std::function<void(const HttpResponsePtr &)> &&callback);
 //std::string 
-#endif
+#endif

main.cc

@@ -33,6 +33,9 @@ int main() {
 
     drogon::app().registerHandler("/api/file/tree", [](const HttpRequestPtr &req, std::function<void(const HttpResponsePtr &)> &&callback) {
         genTree(req, std::move(callback));
+    });  
+    drogon::app().registerHandler("/api/file/cat", [](const HttpRequestPtr &req, std::function<void(const HttpResponsePtr &)> &&callback) {
+        catFile(req, std::move(callback));
     });  
       drogon::app().registerHandler("/api/avatar", [](const HttpRequestPtr &req, std::function<void(const HttpResponsePtr &)> &&callback) {
         avatar(req, std::move(callback));

root/lgy

@@ -0,0 +1 @@
+# this is lgy file

root/root文件1 renamed to root/lj/lljj

@@ -0,0 +1,10 @@
+### this is llggyy file~
+
+```c++
+#include <iostream>
+int main()
+{
+    std::cout<<"Hello, world!"<<std::endl;
+    return 0;
+}
+```