Files
webserv/src/requests_handling/requestImplementation/Get.cpp
2025-05-30 16:20:32 +02:00

267 lines
7.7 KiB
C++

/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* Get.cpp :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: adjoly <adjoly@student.42angouleme.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2025/04/30 09:40:16 by adjoly #+# #+# */
/* Updated: 2025/05/30 16:20:15 by adjoly ### ########.fr */
/* */
/* ************************************************************************** */
#include "cppeleven.hpp"
#include "requests/Response.hpp"
#include <algorithm>
#include <cstddef>
#include <dirent.h>
#include <exception>
#include <sstream>
#include <string>
#include <sys/stat.h>
#include <unistd.h>
#include <vector>
#include <requests/default.hpp>
#include <server/default.hpp>
using namespace webserv::http;
Get::Get(std::string &data, config::Server *srv) {
_cgi = not_nullptr;
_srv = srv;
_url = not_nullptr;
this->parse(data);
}
Get::~Get(void) {
// if (_url != not_nullptr)
// delete _url;
}
void Get::parse(std::string const &data) {
std::istringstream stream(data);
std::string line;
if (std::getline(stream, line)) {
std::istringstream line_stream(line);
line_stream >> this->_method >> this->_target >> this->_protocol;
_method = _sanitizeStr(_method);
_target = _sanitizeStr(_target);
_protocol = _sanitizeStr(_protocol);
}
while (std::getline(stream, line) && line != "\r") {
size_t delimiter_index = line.find(':');
if (delimiter_index != std::string::npos) {
std::string key = line.substr(0, delimiter_index);
std::string value = line.substr(delimiter_index + 2);
this->_headers.insert(std::make_pair(key, _sanitizeStr(value)));
}
}
_route = _srv->whatRoute(URL(_target));
std::ostringstream body_stream;
while (std::getline(stream, line))
body_stream << line << "\n";
this->_body = body_stream.str();
_url = new URL("http://" + _headers["Host"] + _target);
std::string targ = _target;
if (targ[targ.length() - 1] == '/') {
targ += _route->getIndex();
}
if (_route->isCgi(targ)) {
_log->info("cgi added");
try {
_cgi = new server::Cgi(this, _route);
} catch (std::exception &e) {
_log->error(e.what());
_method = "500";
return;
}
server::ResourceManager::append(_cgi);
struct pollfd pfd;
pfd.events = _cgi->event();
pfd.revents = 0;
pfd.fd = _cgi->getId();
server::PfdManager::append(pfd, server::RES);
}
}
char isDirectory(const std::string &path) {
struct stat file_stat;
if (stat(path.c_str(), &file_stat) != 0) {
throw std::runtime_error("can't open file (non-existant ?)");
}
return S_ISDIR(file_stat.st_mode);
}
Response parseCgiOut(std::string cgi_str) {
Response response;
std::istringstream stream(cgi_str);
std::string line;
response.setStatusCode(200);
while (std::getline(stream, line) && line != "") {
size_t delimiter_index = line.find(':');
if (delimiter_index != std::string::npos) {
std::string key = line.substr(0, delimiter_index);
std::string value = line.substr(delimiter_index + 2);
response.addHeader(key, value);
}
}
std::ostringstream body_stream;
while (std::getline(stream, line))
body_stream << line << "\n";
response.setBody(body_stream.str());
if (response.getHeader("Content-Length") == "") {
std::stringstream length;
length << response.getBody().length();
response.addHeader("Content-Length", length.str());
}
return response;
}
Response Get::execute(void) {
http::Response response;
if (_cgi != not_nullptr) {
if (_method == "500") {
response.setStatusCode(500);
response.addHeader("Content-Type", "text/html");
response.setBody(http::Errors::getResponseBody(
response.getStatusCode(),
_srv->getErrorPage(response.getStatusCode())));
server::PfdManager::remove(_cgi->getId());
server::ResourceManager::remove(_cgi->getId());
_cgi = not_nullptr;
return response;
}
std::string str = static_cast<server::Cgi *>(_cgi)->str();
response = parseCgiOut(str);
response.setProtocol(_protocol);
server::PfdManager::remove(_cgi->getId());
server::ResourceManager::remove(_cgi->getId());
_cgi = not_nullptr;
return response;
}
this->_target = this->_route->getRootDir() + this->_target;
try {
if (isDirectory(this->_target)) {
if (!access((this->_target + this->_route->getIndex()).c_str(),
R_OK)) {
this->_target = this->_target + this->_route->getIndex();
std::ifstream file(this->_target.c_str(), std::ios::binary);
std::streampos file_start = file.tellg();
response.setBody(
std::string((std::istreambuf_iterator<char>(file)),
std::istreambuf_iterator<char>()));
std::stringstream length;
length << (file.tellg() - file_start);
response.addHeader("Content-Length", length.str());
response.setProtocol(this->_protocol);
response.setStatusCode(200);
response.addHeader("Content-Type",
http::Mime::getType(this->_target));
} else if (this->_route->getDirList()) {
DIR * dir;
struct dirent * entry;
struct stat file_stat;
std::vector<std::string> files;
if ((dir = opendir(this->_target.c_str())) == NULL)
throw;
while ((entry = readdir(dir)) != NULL) {
std::string file_name = entry->d_name;
if (file_name == ".")
continue;
std::string file_path = this->_target + "/" + file_name;
if (stat(file_path.c_str(), &file_stat) == 0) {
if (S_ISDIR(file_stat.st_mode))
files.push_back(file_name + "/");
else
files.push_back(file_name);
}
}
closedir(dir);
std::sort(files.begin(), files.end());
std::string body = "<html>";
body += "<head><style>\n\
:root {\n\
background-color: -moz-dialog;\n\
color: -moz-dialogtext;\n\
font: message-box;\n\
padding-inline: 2em;\n\
color-scheme: light dark;\n\
}\n\
\n\
body {\n\
border: 1px solid ThreeDShadow;\n\
border-radius: 10px;\n\
padding: 3em;\n\
min-width: 30em;\n\
max-width: 65em;\n\
margin: 4em auto;\n\
background-color: Field;\n\
color: FieldText;\n\
}\n\
</style></head>";
body += "<body><ul>\n";
for (size_t i = 0; i < files.size(); i++)
body += "<li><a href=\"" + files[i] + "\">" + files[i] +
"</a></li>\n";
body += "</ul></body></html>";
response.setProtocol(this->_protocol);
response.setStatusCode(200);
std::stringstream length;
length << body.length();
response.addHeader("Content-Length", length.str());
response.addHeader("Content-Type", "text/html");
response.setBody(body);
} else
throw std::runtime_error("dir but no dirlist");
} else {
std::ifstream file(this->_target.c_str(), std::ios::binary);
std::streampos file_start = file.tellg();
response.setBody(std::string((std::istreambuf_iterator<char>(file)),
std::istreambuf_iterator<char>()));
std::stringstream length;
length << (file.tellg() - file_start);
response.addHeader("Content-Length", length.str());
response.setProtocol(this->_protocol);
response.setStatusCode(200);
response.addHeader("Content-Type",
http::Mime::getType(this->_target));
}
} catch (...) {
// TODO: replace with a predefined array of error pages
response.setProtocol(this->_protocol);
response.setStatusCode(404);
response.addHeader("Content-Type", "text/html");
response.setBody(http::Errors::getResponseBody(
response.getStatusCode(),
_srv->getErrorPage(response.getStatusCode())));
}
delete _url;
return (response);
}