rcpp_fw_static/core/request.cpp

272 lines
5.2 KiB
C++

#include "request.h"
void Request::compile_body() {
compiled_body.reserve(body.size() + head.size() + 13 + 14 + 15);
//13
compiled_body += "<html>"
"<head>";
compiled_body += head;
//14
compiled_body += "</head>"
"<body>";
compiled_body += body;
compiled_body += footer;
//15
compiled_body += "</body>"
"</html>";
response->setBody(compiled_body);
}
void Request::compile_and_send_body() {
compile_body();
send();
}
void Request::next_stage() {
if (current_middleware_index == (*middleware_stack).size()) {
handler_instance.handler_func(handler_instance.instance, this);
return;
}
const HandlerInstance &hi = (*middleware_stack)[current_middleware_index++];
hi.handler_func(hi.instance, this);
}
void Request::send() {
if (http_parser->isKeepAlive()) {
response->addHeadValue("Connection", "Keep-Alive");
std::string result = response->getResult();
(*session)->send(result.c_str(), result.size());
} else {
response->addHeadValue("Connection", "Close");
std::string result = response->getResult();
const brynet::net::http::HttpSession::Ptr lsession = (*session);
(*session)->send(result.c_str(), result.size(), [lsession]() { lsession->postShutdown(); });
}
RequestPool::return_request(this);
}
void Request::send_file(const std::string &p_file_path) {
file_path = p_file_path;
FILE *f = fopen(file_path.c_str(), "rb");
if (!f) {
printf("send_file: Error: Download: file doesn't exists! %s\n", file_path.c_str());
return;
}
fseek(f, 0, SEEK_END);
file_size = ftell(f);
fclose(f);
response->addHeadValue("Connection", "Close");
std::string result = "HTTP/1.1 200 OK\r\nConnection: Close\r\n\r\n";
const brynet::net::http::HttpSession::Ptr lsession = (*session);
(*session)->send(result.c_str(), result.size(), [this]() { this->_progress_send_file(); });
}
void Request::reset() {
http_parser = nullptr;
session = nullptr;
current_middleware_index = 0;
middleware_stack = nullptr;
_path_stack.clear();
_path_stack_pointer = 0;
file_size = 0;
current_file_progress = 0;
head.clear();
body.clear();
footer.clear();
compiled_body.clear();
if (response)
delete response;
response = new brynet::net::http::HttpResponse();
}
void Request::setup_url_stack() {
std::string path = http_parser->getPath();
size_t pos = 0;
std::string st;
while ((pos = path.find("/")) != std::string::npos) {
st = path.substr(0, pos);
if (st.size() != 0)
_path_stack.push_back(st);
path.erase(0, pos + 1);
}
if (path.size() != 0)
_path_stack.push_back(path);
}
std::string Request::get_path() const {
std::string path = "";
for (uint32_t i = _path_stack_pointer; i < _path_stack.size(); ++i) {
path += _path_stack[i];
path += "/";
}
return path;
}
const std::string &Request::get_path_full() const {
return http_parser->getPath();
}
const std::string &Request::get_path_segment(const uint32_t i) const {
return _path_stack[i];
}
const std::string &Request::get_current_path_segment() const {
if (_path_stack_pointer >= _path_stack.size()) {
//for convenience
static const std::string e_str = "";
return e_str;
}
return _path_stack[_path_stack_pointer];
}
uint32_t Request::get_path_segment_count() const {
return _path_stack.size();
}
uint32_t Request::get_current_segment_index() const {
return _path_stack_pointer;
}
uint32_t Request::get_remaining_segment_count() const {
if (_path_stack_pointer > _path_stack.size()) {
return 0;
}
return _path_stack.size() - _path_stack_pointer;
}
void Request::pop_path() {
_path_stack_pointer -= 1;
}
void Request::push_path() {
_path_stack_pointer += 1;
}
Request::Request() {
response = nullptr;
//file_chunk_size = 1 << 20; //1MB
file_chunk_size = 1 << 23;
reset();
}
Request::~Request() {
delete response;
}
void Request::_progress_send_file() {
const brynet::net::http::HttpSession::Ptr lsession = (*session);
if (current_file_progress >= file_size) {
lsession->postShutdown();
RequestPool::return_request(this);
return;
}
FILE *f = fopen(file_path.c_str(), "rb");
if (!f) {
printf("Error: Download: In progress file doesn't exists anymore! %s\n", file_path.c_str());
lsession->postShutdown();
RequestPool::return_request(this);
return;
}
fseek(f, current_file_progress, SEEK_SET);
long nfp = current_file_progress + file_chunk_size;
long csize = file_chunk_size;
if (nfp >= file_size) {
csize = (file_size - current_file_progress);
}
body.resize(csize);
fread(&body[0], 1, csize, f);
fclose(f);
current_file_progress = nfp;
(*session)->send(body.c_str(), body.size(), [this]() { this->_progress_send_file(); });
}
Request *RequestPool::get_request() {
_mutex.lock();
Request *request;
if (_requests.size() == 0) {
_mutex.unlock();
request = new Request();
return request;
}
request = _requests[_requests.size() - 1];
_requests.pop_back();
_mutex.unlock();
return request;
}
void RequestPool::return_request(Request *request) {
request->reset();
_mutex.lock();
_requests.push_back(request);
_mutex.unlock();
}
RequestPool::RequestPool() {
}
RequestPool::~RequestPool() {
for (uint32_t i = 0; i < _requests.size(); ++i) {
delete _requests[i];
}
_requests.clear();
}
std::mutex RequestPool::_mutex;
std::vector<Request *> RequestPool::_requests;