feat(AConfig, URI): add getCGIPath method and implement CGI check in URI

webserv/config/AConfig.cpp

@@ -8,6 +8,7 @@
 
 #include <sstream> // for basic_stringstream, stringstream
 #include <utility> // for pair, move
+#include <ranges>  // for filter
 
 AConfig::AConfig(const AConfig *parent) : parent_(parent) {}
 
@@ -112,4 +113,35 @@ std::string AConfig::getErrorPage(int statusCode) const
         return parent_->getErrorPage(statusCode);
     }
     return ""; // Return empty string if not found
+}
+
+std::string AConfig::getCGIPath(const std::string &extension) const
+{
+    Log::trace(LOCATION);
+    for (const auto &directive : directives_ | std::views::filter([](const auto &d) {
+                                     return d->getName() == "cgi_ext";
+                                 }))
+    {
+        
+        if (!directive->getValue().holds<std::vector<std::string>>())
+        {
+            continue;
+        }
+        auto exts = directive->getValue().try_get<std::vector<std::string>>().value();
+        {
+            continue;
+        }
+        auto cgiPath = exts.back();
+        exts.pop_back(); // Last element is the CGI path
+        auto it = std::ranges::find(exts, extension);
+        if (it != exts.end())
+        {
+            return cgiPath;
+        }
+    }
+    if (parent_ != nullptr)
+    {
+        return parent_->getCGIPath(extension);
+    }
+    return {}; // Return empty string if not found
 }

webserv/config/AConfig.hpp

@@ -23,6 +23,7 @@ class AConfig
     [[nodiscard]] virtual std::string getType() const = 0;
     void addDirective(const std::string &line);
     [[nodiscard]] std::string getErrorPage(int statusCode) const;
+    [[nodiscard]] std::string getCGIPath(const std::string &extension) const;
 
     [[nodiscard]] bool has(const std::string &name) const;
     [[nodiscard]] bool owns(const std::string &name) const;

webserv/handler/URI.cpp

@@ -1,8 +1,7 @@
-#include <webserv/handler/URI.hpp>
-
 #include <webserv/config/AConfig.hpp>        // for AConfig
 #include <webserv/config/LocationConfig.hpp> // for LocationConfig
 #include <webserv/config/ServerConfig.hpp>   // for ServerConfig
+#include <webserv/handler/URI.hpp>
 #include <webserv/http/HttpHeaders.hpp> // for HttpHeaders
 #include <webserv/utils/FileUtils.hpp>  // for joinPath, getExtension, isDirectory, isFile, isValidPath
 #include <webserv/utils/utils.hpp>      // for trim, split
@@ -147,6 +146,17 @@ bool URI::isValid() const
     return FileUtils::isValidPath(fullPath_);
 }
 
+bool URI::isCgi() const
+{
+    if (isFile() || getExtension().empty() || !config_->get<std::string>("cgi_enabled").has_value()
+        || config_->get<std::string>("cgi_enabled").value() != "on")
+    {
+        return false;
+    }
+    auto cgiPath = config_->getCGIPath(getExtension());
+    return !cgiPath.empty();
+}
+
 const std::string &URI::getBaseName() const
 {
     return baseName_;