webserv/webserv/handler/FileHandler.cpp

128 lines
4.7 KiB
C++

#include "webserv/utils/AutoIndex.hpp"
#include <webserv/config/AConfig.hpp> // for AConfig
#include <webserv/handler/ErrorHandler.hpp> // for ErrorHandler
#include <webserv/handler/FileHandler.hpp>
#include <webserv/handler/MIMETypes.hpp> // for MIMETypes
#include <webserv/handler/URI.hpp> // for URI
#include <webserv/http/HttpConstants.hpp> // for NOT_FOUND, FORBIDDEN, OK
#include <webserv/http/HttpResponse.hpp> // for HttpResponse
#include <webserv/log/Log.hpp> // for Log, LOCATION
#include <webserv/utils/FileUtils.hpp> // for joinPath, getExtension, isFile, readBinaryFile
#include <optional> // for optional
#include <ranges> // for __find_if_fn, find_if
#include <string> // for basic_string, allocator, operator+, string, char_traits
#include <vector> // for vector
FileHandler::FileHandler(const HttpRequest &request, HttpResponse &response)
: AHandler(request, response), uri_(request.getUri()), config_(uri_.getConfig())
{
Log::trace(LOCATION);
}
void FileHandler::handleTimeout()
{
Log::warning("File handler timeout occurred for path: " + uri_.getFullPath());
ErrorHandler::createErrorResponse(504, response_, config_);
}
void FileHandler::handleFile(const std::string &filepath) const
{
Log::trace(LOCATION);
Log::debug("Requested path is a file: " + filepath);
// auto response = std::make_unique<HttpResponse>();
std::string extension = FileUtils::getExtension(filepath);
std::string mimeType = MIMETypes().getType(extension);
response_.addHeader("Content-Type", mimeType);
std::vector<char> fileData = FileUtils::readBinaryFile(filepath);
Log::debug("Serving file: " + filepath + " with MIME type: " + mimeType);
// TODO empty file should not return 404 i guess
// if (fileData.empty())
// {
// ErrorHandler::createErrorResponse(Http::StatusCode::NOT_FOUND, response_, config_);
// return;
// }
// TODO: annoying: For reading files, vector<char> is preferred, but for http data vector<uint8_t> is preferred
response_.setBody(std::vector<uint8_t>{fileData.begin(), fileData.end()});
response_.setStatus(Http::StatusCode::OK);
// return response;
}
void FileHandler::handleDirectory(const std::string &dirpath, ResourceType type) const
{
Log::trace(LOCATION);
Log::debug("Requested path is a directory: " + dirpath);
if (type == DIRECTORY_INDEX)
{
auto possible_indexes = config_->get<std::vector<std::string>>("index").value();
auto first_matching = std::ranges::find_if(possible_indexes, [&](const std::string &index) {
return FileUtils::isFile(FileUtils::joinPath(dirpath, index));
});
if (first_matching == possible_indexes.end())
{
ErrorHandler::createErrorResponse(Http::StatusCode::NOT_FOUND, response_, config_);
return;
}
handleFile(FileUtils::joinPath(dirpath, *first_matching));
return;
}
if (type == DIRECTORY_AUTOINDEX)
{
Log::debug("Requested path is a directory: " + dirpath);
response_.addHeader("Content-Type", "text/html");
response_.addHeader("Connection", "close");
response_.setBody(AutoIndex::generate(dirpath, uri_));
response_.setStatus(Http::StatusCode::OK);
return;
}
ErrorHandler::createErrorResponse(Http::StatusCode::NOT_FOUND, response_, config_);
}
void FileHandler::handle()
{
Log::trace(LOCATION);
if (!uri_.isValid())
{
ErrorHandler::createErrorResponse(Http::StatusCode::NOT_FOUND, response_, config_);
return;
}
std::string filepath = uri_.getFullPath();
Log::debug("Handling file request for path: " + filepath);
ResourceType resourceType = getResourceType(filepath);
switch (resourceType)
{
case FILE: handleFile(filepath); return;
case DIRECTORY_AUTOINDEX:
case DIRECTORY_INDEX: handleDirectory(filepath, resourceType); return;
case NOT_FOUND: ErrorHandler::createErrorResponse(Http::StatusCode::NOT_FOUND, response_, config_); return;
}
ErrorHandler::createErrorResponse(Http::StatusCode::NOT_FOUND, response_, config_);
}
FileHandler::ResourceType FileHandler::getResourceType(const std::string &path) const
{
static_cast<void>(path);
Log::trace(LOCATION);
Log::debug("Determining resource type for path: " + path);
if (uri_.isFile())
{
return FILE;
}
if (uri_.isDirectory())
{
// if (config_->get<std::vector<std::string>>("index").has_value())
// {
// return DIRECTORY_INDEX;
// }
if (config_->get<bool>("autoindex").value_or(false))
{
return DIRECTORY_AUTOINDEX;
}
}
return NOT_FOUND;
}