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kinda successful merge, weird tho, didn't go as smoothly with VScode as usual...

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Me
2022-08-05 22:25:11 +02:00
parent f7dc5ccde4 914d4cb0c0
commit 6f0c3b4d6d
23 changed files with 750 additions and 392 deletions
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9
memo.txt
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@@ -1,5 +1,12 @@
- do correct handling of special character in url (/rfc2119_files/errata.js.t%C3%A9l%C3%A9chargement -> /rfc2119_files/errata.js.téléchargement)
- handle redirection
- maybe add a "last_action_time" in Client for timeout handling
little global timeout on epoll, like 100ms, then find client that actualy need to timeout
if (actual_time - client.last_action_time > 10000ms){timeout(client)}
- add headers "Date" and "Last-Modified" to response
- change "std::string" to reference "std::string &" in most functions
and add "const" if apropriate.
- http_method en mode binary flags. "std::vector<http_method> allow_methods" -> "unsigned int allow_methods;"
- Dans le parsing, trier les "locations" par ordre de precision.
Compter les "/" dans le chemin, les locations avec le plus de "/" seront en premier dans le vector.

22
srcs/Client.cpp
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@@ -1,6 +1,8 @@
#include "Client.hpp"
char Client::buf[MAX_FILESIZE+1];
/*********************************************
* COPLIENS
*********************************************/
@@ -35,7 +37,7 @@ void Client::parse_request()
std::vector<std::string> list;
size_t pos;
pos = (raw_request).find("\r\n\r\n");
pos = (raw_request).find(CRLF CRLF);
sub = (raw_request).substr(0, pos);
list = split(sub, '\n');
// request_line
@@ -45,9 +47,27 @@ void Client::parse_request()
_parse_request_headers(list);
//body- message
_parse_request_body(pos + 4);
// add "raw_request.clear()" after parsing ? for little less memory usage ?
}
void Client::clear()
{
clear_request();
raw_request.clear();
response.clear();
body_size = 0;
status = 0;
}
void Client::clear_request()
{
_request.method = UNKNOWN;
_request.path.clear();
_request.version.clear();
_request.headers.clear();
_request.body.clear();
}
http_method Client::get_method() { return _request.method; }
std::string &Client::get_path() { return _request.path; }

7
srcs/Client.hpp
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@@ -10,13 +10,14 @@
struct Request
{
std::map<std::string, std::string> headers;
http_method method;
std::string path;
std::string version;
std::map<std::string, std::string> headers;
std::string body;
};
# define MAX_FILESIZE 1000000 // (1Mo)
class Client
{
public:
@@ -28,6 +29,8 @@ class Client
int fd;
std::string raw_request;
std::string response;
static char buf[MAX_FILESIZE+1];
size_t body_size;
unsigned int status;
// const functions ?
@@ -38,6 +41,8 @@ class Client
std::string &get_headers(const std::string &key);
void parse_request();
void clear();
void clear_request();
private:
struct Request _request;

2
srcs/config/ServerConfig.hpp
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@@ -30,7 +30,7 @@ public:
// there can only be one.
std::string root;
int client_body_limit; // set to default max if none set
unsigned int client_body_limit; // set to default max if none set
// might be the only one we let slide if bad input... It remains false...
bool autoindex;

15
srcs/utils.cpp
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@@ -124,5 +124,18 @@ int path_is_valid(std::string path)
}
void replace_all_substr(std::string &str, const std::string &ori_substr, const std::string &new_substr)
{
if (ori_substr.empty())
return;
size_t pos = 0;
while (1)
{
pos = str.find(ori_substr, pos);
if (pos == std::string::npos)
break;
str.replace(pos, ori_substr.size(), new_substr);
pos += new_substr.size();
}
}

7
srcs/utils.hpp
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@@ -8,9 +8,9 @@
# include <cstdlib> // atoi
# include <sys/stat.h> // stat()
# include <iostream> // tmp
# define CR "\r"
# define LF "\n"
# define CRLF CR LF
// enum http_method
// {
@@ -38,5 +38,6 @@ std::string trim(std::string str, char c);
http_method str_to_http_method(std::string &str);
std::string http_methods_to_str(unsigned int methods);
int path_is_valid(std::string path);
void replace_all_substr(std::string &str, const std::string &ori_substr, const std::string &new_substr)
#endif

21
srcs/webserv/Webserv.hpp
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@@ -28,6 +28,7 @@
# include "Client.hpp"
# include "ServerConfig.hpp"
# include "utils.hpp"
# include "http_status.hpp"
extern bool g_run;
extern int g_last_signal;
@@ -60,6 +61,8 @@ class Webserv
std::vector<int> _listen_sockets;
std::vector<ServerConfig> _servers;
std::vector<Client> _clients;
std::map<int, std::string> _http_status;
std::map<std::string, std::string> _mime_types;
// accept.cpp
void _accept_connection(int fd);
@@ -69,11 +72,23 @@ class Webserv
// response.cpp
void _response(Client *client);
void _send_response(Client *client, ServerConfig &server);
void _append_base_headers(Client *client);
void _construct_response(Client *client, ServerConfig &server);
void _insert_status_line(Client *client, ServerConfig &server);
void _get_ressource(Client *client, ServerConfig &server, LocationConfig &location);
void _process_method(Client *client, ServerConfig &server, LocationConfig &location);
void _insert_status_line(Client *client);
void _error_html_response(Client *client, ServerConfig &server);
void _append_body(Client *client, const char *body, size_t body_size, const std::string &file_extension = "");
void _get(Client *client, ServerConfig &server, LocationConfig &location);
void _get_file(Client *client, const std::string &path);
void _post(Client *client, ServerConfig &server, LocationConfig &location);
void _post_file(Client *client, const std::string &path);
void _delete(Client *client, ServerConfig &server, LocationConfig &location);
void _delete_file(Client *client, const std::string &path);
ServerConfig &_determine_process_server(Client *client);
LocationConfig &_determine_location(ServerConfig &server, std::string &path);
// cgi_script.cpp
@@ -94,6 +109,8 @@ class Webserv
// init.cpp
void _bind(int socket_fd, in_port_t port, std::string host);
void _listen(int socket_fd, unsigned int max_connections);
void _init_http_status_map();
void _init_mime_types_map();
};
#endif

3
srcs/webserv/base.cpp
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@@ -12,6 +12,9 @@ Webserv::Webserv()
throw std::runtime_error("Epoll init");
}
_init_http_status_map();
_init_mime_types_map();
std::signal(SIGPIPE, signal_handler);
std::signal(SIGINT, signal_handler);
}

41
srcs/webserv/http_status.hpp Normal file
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@@ -0,0 +1,41 @@
#ifndef HTTP_STATUS_HPP
# define HTTP_STATUS_HPP
// https://www.iana.org/assignments/http-status-codes/http-status-codes.xhtml
/*
First version of macro HTML_ERROR(STATUS) dont work with call like this :
client->response.append( HTML_ERROR( _http_status[client->status].c_str() ) );
so I made the other version with dynamic replacement of STATUS .
*/
// # define HTML_ERROR(STATUS) "\r\n<!DOCTYPE html><html><head><title>"STATUS"</title></head><body><h1 style=\"text-align:center\">"STATUS"</h1><hr><p style=\"text-align:center\">Le Webserv/0.1</p></body></html>"
# define STATUS_PLACEHOLDER "$STATUS"
# define HTML_ERROR \
"<!DOCTYPE html>"\
"<html>"\
"<head>"\
"<title>" STATUS_PLACEHOLDER "</title>"\
"</head>"\
"<body>"\
"<h1 style=\"text-align:center\">" STATUS_PLACEHOLDER "</h1>"\
"<hr>"\
"<p style=\"text-align:center\">Le Webserv/0.1</p>"\
"</body>"\
"</html>"
// When new status added, need to update _init_http_status_map()
# define S200 "200 OK"
# define S201 "201 Created"
# define S204 "204 No Content"
# define S400 "400 Bad Request"
# define S403 "403 Forbidden"
# define S404 "404 Not Found"
# define S405 "405 Method Not Allowed"
# define S413 "413 Content Too Large"
# define S500 "500 Internal Server Error"
#endif

131
srcs/webserv/init.cpp
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@@ -76,3 +76,134 @@ void Webserv::_listen(int socket_fd, unsigned int max_connections)
throw std::runtime_error("Socket listen");
}
}
void Webserv::_init_http_status_map()
{
_http_status[200] = S200;
_http_status[201] = S201;
_http_status[204] = S204;
_http_status[400] = S400;
_http_status[403] = S403;
_http_status[404] = S404;
_http_status[405] = S405;
_http_status[413] = S413;
_http_status[500] = S500;
}
void Webserv::_init_mime_types_map()
{
_mime_types[""] = "application/octet-stream";
_mime_types["html"] = "text/html";
_mime_types["htm"] = "text/html";
_mime_types["shtml"] = "text/html";
_mime_types["css"] = "text/css";
_mime_types["xml"] = "text/xml";
_mime_types["gif"] = "image/gif";
_mime_types["jpeg"] = "image/jpeg";
_mime_types["jpg"] = "image/jpeg";
_mime_types["js"] = "application/javascript";
_mime_types["atom"] = "application/atom+xml";
_mime_types["rss"] = "application/rss+xml";
_mime_types["mml"] = "text/mathml";
_mime_types["txt"] = "text/plain";
_mime_types["jad"] = "text/vnd.sun.j2me.app-descriptor";
_mime_types["wml"] = "text/vnd.wap.wml";
_mime_types["htc"] = "text/x-component";
_mime_types["png"] = "image/png";
_mime_types["tif"] = "image/tiff";
_mime_types["tiff"] = "image/tiff";
_mime_types["wbmp"] = "image/vnd.wap.wbmp";
_mime_types["ico"] = "image/x-icon";
_mime_types["jng"] = "image/x-jng";
_mime_types["bmp"] = "image/x-ms-bmp";
_mime_types["svg"] = "image/svg+xml";
_mime_types["svgz"] = "image/svg+xml";
_mime_types["webp"] = "image/webp";
_mime_types["woff"] = "application/font-woff";
_mime_types["jar"] = "application/java-archive";
_mime_types["war"] = "application/java-archive";
_mime_types["ear"] = "application/java-archive";
_mime_types["json"] = "application/json";
_mime_types["hqx"] = "application/mac-binhex40";
_mime_types["doc"] = "application/msword";
_mime_types["pdf"] = "application/pdf";
_mime_types["ps"] = "application/postscript";
_mime_types["eps"] = "application/postscript";
_mime_types["ai"] = "application/postscript";
_mime_types["rtf"] = "application/rtf";
_mime_types["m3u8"] = "application/vnd.apple.mpegurl";
_mime_types["xls"] = "application/vnd.ms-excel";
_mime_types["eot"] = "application/vnd.ms-fontobject";
_mime_types["ppt"] = "application/vnd.ms-powerpoint";
_mime_types["wmlc"] = "application/vnd.wap.wmlc";
_mime_types["kml"] = "application/vnd.google-earth.kml+xml";
_mime_types["kmz"] = "application/vnd.google-earth.kmz";
_mime_types["7z"] = "application/x-7z-compressed";
_mime_types["cco"] = "application/x-cocoa";
_mime_types["jardiff"] = "application/x-java-archive-diff";
_mime_types["jnlp"] = "application/x-java-jnlp-file";
_mime_types["run"] = "application/x-makeself";
_mime_types["pl"] = "application/x-perl";
_mime_types["pm"] = "application/x-perl";
_mime_types["prc"] = "application/x-pilot";
_mime_types["pdb"] = "application/x-pilot";
_mime_types["rar"] = "application/x-rar-compressed";
_mime_types["rpm"] = "application/x-redhat-package-manager";
_mime_types["sea"] = "application/x-sea";
_mime_types["swf"] = "application/x-shockwave-flash";
_mime_types["sit"] = "application/x-stuffit";
_mime_types["tcl"] = "application/x-tcl";
_mime_types["tk"] = "application/x-tcl";
_mime_types["der"] = "application/x-x509-ca-cert";
_mime_types["pem"] = "application/x-x509-ca-cert";
_mime_types["crt"] = "application/x-x509-ca-cert";
_mime_types["xpi"] = "application/x-xpinstall";
_mime_types["xhtml"] = "application/xhtml+xml";
_mime_types["xspf"] = "application/xspf+xml";
_mime_types["zip"] = "application/zip";
_mime_types["bin"] = "application/octet-stream";
_mime_types["exe"] = "application/octet-stream";
_mime_types["dll"] = "application/octet-stream";
_mime_types["deb"] = "application/octet-stream";
_mime_types["dmg"] = "application/octet-stream";
_mime_types["iso"] = "application/octet-stream";
_mime_types["img"] = "application/octet-stream";
_mime_types["msi"] = "application/octet-stream";
_mime_types["msp"] = "application/octet-stream";
_mime_types["msm"] = "application/octet-stream";
_mime_types["docx"] = "application/vnd.openxmlformats-officedocument.wordprocessingml.document";
_mime_types["xlsx"] = "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet";
_mime_types["pptx"] = "application/vnd.openxmlformats-officedocument.presentationml.presentation";
_mime_types["mid"] = "audio/midi";
_mime_types["midi"] = "audio/midi";
_mime_types["kar"] = "audio/midi";
_mime_types["mp3"] = "audio/mpeg";
_mime_types["ogg"] = "audio/ogg";
_mime_types["m4a"] = "audio/x-m4a";
_mime_types["ra"] = "audio/x-realaudio";
_mime_types["3gpp"] = "video/3gpp";
_mime_types["3gp"] = "video/3gpp";
_mime_types["ts"] = "video/mp2t";
_mime_types["mp4"] = "video/mp4";
_mime_types["mpeg"] = "video/mpeg";
_mime_types["mpg"] = "video/mpeg";
_mime_types["mov"] = "video/quicktime";
_mime_types["webm"] = "video/webm";
_mime_types["flv"] = "video/x-flv";
_mime_types["m4v"] = "video/x-m4v";
_mime_types["mng"] = "video/x-mng";
_mime_types["asx"] = "video/x-ms-asf";
_mime_types["asf"] = "video/x-ms-asf";
_mime_types["wmv"] = "video/x-ms-wmv";
_mime_types["avi"] = "video/x-msvideo";
}

313
srcs/webserv/response.cpp
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@@ -3,6 +3,8 @@
void Webserv::_response(Client *client)
{
client->status = 200; // default value
ServerConfig &server = _determine_process_server(client);
_send_response(client, server);
if (g_last_signal)
@@ -14,9 +16,12 @@ void Webserv::_send_response(Client *client, ServerConfig &server)
ssize_t ret;
std::cerr << "send()\n";
// std::cerr << "RAW_REQUEST\n|\n" << client->raw_request << "|\n"; // DEBUG
_append_base_headers(client);
_construct_response(client, server);
_insert_status_line(client);
if (client->status >= 400)
_error_html_response(client, server);
ret = ::send(client->fd, client->response.c_str(), client->response.size(), 0);
if (ret == -1)
@@ -27,30 +32,51 @@ void Webserv::_send_response(Client *client, ServerConfig &server)
return ;
}
if (client->raw_request.find("Connection: close") != std::string::npos)
// Body send (WIP for working binary files)
if (client->body_size)
{
ret = ::send(client->fd, client->buf, client->body_size, 0);
if (ret == -1)
{
std::perror("err send()");
std::cerr << "client.fd =" << client->fd << "\n"; // DEBUG
_close_client(client->fd);
return ;
}
}
if (client->get_headers("Connection") == "close")
_close_client(client->fd);
else
{
_epoll_update(client->fd, EPOLLIN, EPOLL_CTL_MOD);
client->raw_request.clear();
client->response.clear();
client->clear();
}
}
void Webserv::_append_base_headers(Client *client)
{
client->response.append("Server: Webserv/0.1" CRLF);
if (client->get_headers("Connection") == "close")
client->response.append("Connection: close" CRLF);
else
client->response.append("Connection: keep-alive" CRLF);
}
void Webserv::_construct_response(Client *client, ServerConfig &server)
{
if (client->get_body().size() > server.client_body_limit)
{
client->status = 413;
return;
}
LocationConfig &location = _determine_location(server, client->get_path());
_process_method(client, server, location);
}
client->status = 200; // default value
client->response.append("Server: Webserv/0.1\r\n");
if (client->get_headers("Connection") == "close")
client->response.append("Connection: close\r\n");
else
client->response.append("Connection: keep-alive\r\n");
void Webserv::_process_method(Client *client, ServerConfig &server, LocationConfig &location)
{
unsigned int allow_methods = ALL_METHODS; // TEMP VARIABLE
// after update in ConfigParser, use the "allow_methods" of location.
// TODO in ConfigParser : by default if no field in config file, "allow_methods" must be set to ALL_METHODS
@@ -61,72 +87,61 @@ void Webserv::_construct_response(Client *client, ServerConfig &server)
}
else if (allow_methods & client->get_method())
{
if (client->get_method() & GET)
_get_ressource(client, server, location);
else if (client->get_method() & POST)
_post(client, server, location);
else if (client->get_method() & DELETE)
_delete(client, server, location);
switch (client->get_method())
{
case (GET):
_get(client, server, location);
break;
case (POST):
_post(client, server, location);
break;
case (DELETE):
_delete(client, server, location);
break;
default:
break;
}
}
else
{
client->status = 405;
client->response.append("Allow: ");
client->response.append(::http_methods_to_str(allow_methods));
client->response.append("\r\n");
client->response.append(CRLF);
}
_insert_status_line(client, server);
}
// https://www.iana.org/assignments/http-status-codes/http-status-codes.xhtml
#define HTML_ERROR(STATUS) "\r\n<!DOCTYPE html><html><head><title>"STATUS"</title></head><body><h1 style=\"text-align:center\">"STATUS"</h1><hr><p style=\"text-align:center\">Le Webserv/0.1</p></body></html>"
#define S200 "200 OK"
#define S400 "400 Bad Request"
#define S404 "404 Not Found"
#define S500 "500 Internal Server Error"
void Webserv::_insert_status_line(Client *client, ServerConfig &server)
void Webserv::_insert_status_line(Client *client)
{
std::string status_line;
status_line.append("HTTP/1.1 ");
// WIP, maybe make a map for status response
switch (client->status)
{
case (200):
status_line.append(S200);
break;
case (400):
status_line.append(S400);
client->response.append(HTML_ERROR(S400));
break;
case (404):
status_line.append(S404);
client->response.append(HTML_ERROR(S404));
break;
case (500):
status_line.append(S500);
client->response.append(HTML_ERROR(S500));
break;
}
status_line.append("\r\n");
status_line.append(_http_status[client->status]);
status_line.append(CRLF);
client->response.insert(0, status_line);
}
#define ROOT "www"
#define INDEX "index.html"
#define MAX_FILESIZE 1000000 // (1Mo)
void Webserv::_get_ressource(Client *client, ServerConfig &server, LocationConfig &location)
void Webserv::_error_html_response(Client *client, ServerConfig &server)
{
std::ifstream ifd; // For chunk, ifstream directly in struct CLient for multiples read without close() ?
char buf[MAX_FILESIZE+1];
std::string tmp;
if (server.error_pages[client->status].empty())
{
std::string html_page = HTML_ERROR;
::replace_all_substr(html_page, STATUS_PLACEHOLDER, _http_status[client->status]);
_append_body(client, html_page.c_str(), html_page.size(), "html");
}
else
_get_file(client, server.error_pages[client->status]);
}
#define INDEX "index.html" // temp wip
void Webserv::_get(Client *client, ServerConfig &server, LocationConfig &location)
{
(void)server; // To remove from arg if we determine its useless
std::string path = client->get_path();
if (path == "/") // TODO ; With server config
if (path == "/") // TODO : index and autoindex
path.append(INDEX);
path.insert(0, ROOT);
path.insert(0, location.root);
std::cerr << "path = " << path << "\n";
@@ -140,24 +155,39 @@ void Webserv::_get_ressource(Client *client, ServerConfig &server, LocationConfi
//
// END TMP HUGO
if (access(path.c_str(), R_OK) == -1)
_get_file(client, path);
}
void Webserv::_get_file(Client *client, const std::string &path)
{
std::ifstream ifd; // For chunk, ifstream directly in struct CLient for multiples read without close() ?
// char buf[MAX_FILESIZE+1];
if (access(path.c_str(), F_OK) == -1)
{
std::perror("err access()");
client->status = 404;
return ;
}
if (access(path.c_str(), R_OK) == -1)
{
std::perror("err access()");
client->status = 403;
return ;
}
ifd.open(path.c_str(), std::ios::binary | std::ios::ate); // std::ios::binary (binary for files like images ?)
if (!ifd)
{
std::cerr << path << ": open fail" << '\n';
std::cerr << path << ": ifd.open fail" << '\n';
client->status = 500;
}
else
{
// WIP : Chunk or not chunk (if filesize too big)
std::streampos size = ifd.tellg();
// WIP : Chunk or not chunk (if filesize too big)
if (size > MAX_FILESIZE)
{
// Then chunk
@@ -168,38 +198,161 @@ void Webserv::_get_ressource(Client *client, ServerConfig &server, LocationConfi
}
ifd.seekg(0, std::ios::beg);
ifd.read(buf, size);
buf[ifd.gcount()] = '\0';
ifd.read(client->buf, size);
if (!ifd)
{
std::cerr << path << ": ifd.read fail" << '\n';
client->status = 500;
}
else
{
client->status = 200;
client->buf[ifd.gcount()] = '\0';
client->response.append("Content-Type: text/html; charset=UTF-8\r\n"); // TODO : determine Content-Type
std::string file_ext = "";
size_t dot_pos = path.rfind(".");
std::cerr << "dot_pos = " << dot_pos << "\n";
if (dot_pos != std::string::npos && dot_pos + 1 < path.size())
file_ext = path.substr(dot_pos + 1);
std::cerr << "file_ext = " << file_ext << "\n";
client->response.append("Content-Length: ");
tmp = ::itos(ifd.gcount());
client->response.append(tmp);
client->response.append("\r\n");
// Body
client->response.append("\r\n");
client->response.append(buf);
client->body_size = ifd.gcount();
// WIP, pass empty body argument because append to string mess up binary file
_append_body(client, "", client->body_size, file_ext);
}
ifd.close();
}
}
void Webserv::_post(Client *client, ServerConfig &server, LocationConfig &location)
void Webserv::_append_body(Client *client, const char *body, size_t body_size, const std::string &file_extension)
{
/*
TODO
TODO : determine Content-Type
how ? read the body ?
or before in other way (like based and file extension) and pass here as argument ?
http://nginx.org/en/docs/http/ngx_http_core_module.html#types
Need to look "conf/mime.types" of nginx. Maybe make a map<> based on that.
*/
(void)0;
const std::string &mime_type = _mime_types[file_extension];
client->response.append("Content-Type: ");
client->response.append(mime_type);
if (mime_type.find("text/") != std::string::npos)
client->response.append("; charset=UTF-8");
client->response.append(CRLF);
client->response.append("Content-Length: ");
std::string tmp = ::itos(body_size);
client->response.append(tmp);
client->response.append(CRLF);
client->response.append(CRLF);
client->response.append(body);
}
void Webserv::_post(Client *client, ServerConfig &server, LocationConfig &location)
{
(void)server; // To remove from arg if we determine its useless
/*
WIP
https://www.rfc-editor.org/rfc/rfc9110.html#name-post
*/
std::string path = client->get_path();
path.insert(0, location.root);
/* CGI Here ? */
_post_file(client, path);
}
void Webserv::_post_file(Client *client, const std::string &path)
{
std::ofstream ofd;
bool file_existed;
if (access(path.c_str(), F_OK) == -1)
file_existed = false;
else
file_existed = true;
// How to determine status 403 for file that dont already exist ?
if (file_existed && access(path.c_str(), W_OK) == -1)
{
std::perror("err access()");
client->status = 403;
return ;
}
ofd.open(path.c_str(), std::ios::binary | std::ios::trunc);
if (!ofd)
{
std::cerr << path << ": ofd.open fail" << '\n';
client->status = 500;
}
else
{
// Used body.size() so Content-Length useless at this point ?
// Maybe usefull in _read_request() for rejecting too big content.
// Need to _determine_process_server() as soon as possible,
// like in _read_request() for stopping read if body is too big ?
ofd.write(client->get_body().c_str(), client->get_body().size());
if (!ofd)
{
std::cerr << path << ": ofd.write fail" << '\n';
client->status = 500;
}
else if (file_existed)
{
client->status = 200;
// WIP https://www.rfc-editor.org/rfc/rfc9110.html#name-200-ok
}
else
{
client->status = 201;
// WIP https://www.rfc-editor.org/rfc/rfc9110.html#section-9.3.3-4
}
ofd.close();
}
}
void Webserv::_delete(Client *client, ServerConfig &server, LocationConfig &location)
{
(void)server; // To remove from arg if we determine its useless
/*
TODO
WIP
https://www.rfc-editor.org/rfc/rfc9110.html#name-delete
*/
(void)0;
std::string path = client->get_path();
path.insert(0, location.root);
/* CGI Here ? */
_delete_file(client, path);
}
void Webserv::_delete_file(Client *client, const std::string &path)
{
if (access(path.c_str(), F_OK) == -1)
{
std::perror("err access()");
client->status = 404;
return ;
}
if (access(path.c_str(), W_OK) == -1)
{
std::perror("err access()");
client->status = 403;
return ;
}
if (remove(path.c_str()) == -1)
{
std::perror("err remove()");
client->status = 500;
return ;
}
}
ServerConfig &Webserv::_determine_process_server(Client *client)

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<!-- saved from url=(0057)https://www.rfc-editor.org/rfc/inline-errata/rfc2119.html -->
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<title>rfc2119</title>
</head>
<body>
<div class="Verified-headnote-styling">
<span style="font-weight: bold;">This is a purely informative rendering of an RFC that includes verified errata. This rendering may not be used as a reference.</span>
<br>
<br>
The following 'Verified' errata have been incorporated in this document:
<a href="https://www.rfc-editor.org/rfc/inline-errata/rfc2119.html#eid493">EID 493</a>, <a href="https://www.rfc-editor.org/rfc/inline-errata/rfc2119.html#btn_494">EID 494</a>, <a href="https://www.rfc-editor.org/rfc/inline-errata/rfc2119.html#btn_495">EID 495</a>, <a href="https://www.rfc-editor.org/rfc/inline-errata/rfc2119.html#btn_494">EID 496</a>, <a href="https://www.rfc-editor.org/rfc/inline-errata/rfc2119.html#eid498">EID 498</a>, <a href="https://www.rfc-editor.org/rfc/inline-errata/rfc2119.html#btn_499">EID 499</a>, <a href="https://www.rfc-editor.org/rfc/inline-errata/rfc2119.html#eid500">EID 500</a>, <a href="https://www.rfc-editor.org/rfc/inline-errata/rfc2119.html#btn_5101">EID 5101</a>
</div>
<pre>Network Working Group S. Bradner
Request for Comments: 2119 Harvard University
BCP: 14 March 1997
Category: Best Current Practice
Key words for use in RFCs to Indicate Requirement Levels
Status of this Memo
This document specifies an Internet Best Current Practices for the
Internet Community, and requests discussion and suggestions for
improvements. Distribution of this memo is unlimited.
Abstract
In many standards track documents several words are used to signify
the requirements in the specification. These words are often
capitalized. This document defines these words as they should be
interpreted in IETF documents. Authors who follow these guidelines
should incorporate this phrase near the beginning of their document:
<span class="Verified-inline-styling" id="inline-499"> The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL <button id="btn_499" target="expand_499" onclick="hideFunction(&quot;expand_499&quot;)">Expand</button>
NOT", "SHOULD", "SHOULD NOT", "RECOMMENDED", "NOT
RECOMMENDED", "MAY", and "OPTIONAL" in this document are to
be interpreted as described in RFC 2119.</span>
<div class="nodeCloseClass" id="expand_499"><div class="Verified-endnote-styling" id="eid499">
<pre><b><i><a href="https://www.rfc-editor.org/errata/eid499">EID 499</a> (Verified) is as follows:</i></b>
<b>Section:</b> Abstract
<b>Original Text:</b>
The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL
NOT", "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and
"OPTIONAL" in this document are to be interpreted as described in
RFC 2119.
<b>Corrected Text:</b>
The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL
NOT", "SHOULD", "SHOULD NOT", "RECOMMENDED", "NOT
RECOMMENDED", "MAY", and "OPTIONAL" in this document are to
be interpreted as described in RFC 2119.
</pre>
<b>Notes:</b><br>
The phrase "NOT RECOMMENDED" is missing from this sentence.
</div>
</div>
Note that the force of these words is modified by the requirement
level of the document in which they are used.
<span class="Verified-inline-styling" id="inline-495">1. MUST This word, or the terms "REQUIRED" or "SHALL", means that the <button id="btn_495" target="expand_495" onclick="hideFunction(&quot;expand_495&quot;)">Expand</button>
definition is an absolute requirement of the specification.
<div class="Verified-endnote-styling" id="eid493">
<pre><b><i><a href="https://www.rfc-editor.org/errata/eid493">EID 493</a> (Verified) is as follows:</i></b>
<b>Section:</b> 1
<b>Original Text:</b>
2. MUST NOT This phrase, or the phrase "SHALL NOT", mean that the
definition is an absolute prohibition of the specification.
<b>Corrected Text:</b>
2. MUST NOT This phrase, or the phrase "SHALL NOT", means that the
definition is an absolute prohibition of the specification.
</pre>
<b>Notes:</b><br>
</div>
<div class="Verified-endnote-styling" id="eid498">
<pre><b><i><a href="https://www.rfc-editor.org/errata/eid498">EID 498</a> (Verified) is as follows:</i></b>
<b>Section:</b> 1
<b>Original Text:</b>
4. SHOULD NOT This phrase, or the phrase "NOT RECOMMENDED" mean that
there may exist valid reasons in particular circumstances when the
particular behavior is acceptable or even useful, but the full
implications should be understood and the case carefully weighed
before implementing any behavior described with this label.
<b>Corrected Text:</b>
4. SHOULD NOT This phrase, or the phrase "NOT RECOMMENDED", means that
there may exist valid reasons in particular circumstances when the
particular behavior is acceptable or even useful, but the full
implications should be understood and the case carefully weighed
before implementing any behavior described with this label.
</pre>
<b>Notes:</b><br>
</div>
<div class="Verified-endnote-styling" id="eid500">
<pre><b><i><a href="https://www.rfc-editor.org/errata/eid500">EID 500</a> (Verified) is as follows:</i></b>
<b>Section:</b> 1
<b>Original Text:</b>
3. SHOULD This word, or the adjective "RECOMMENDED", mean that there
may exist valid reasons in particular circumstances to ignore a
particular item, but the full implications must be understood and
carefully weighed before choosing a different course.
<b>Corrected Text:</b>
3. SHOULD This word, or the adjective "RECOMMENDED", means that there
may exist valid reasons in particular circumstances to ignore a
particular item, but the full implications must be understood and
carefully weighed before choosing a different course.
</pre>
<b>Notes:</b><br>
</div>
</span>
<div class="nodeCloseClass" id="expand_495"><div class="Verified-endnote-styling" id="eid495">
<pre><b><i><a href="https://www.rfc-editor.org/errata/eid495">EID 495</a> (Verified) is as follows:</i></b>
<b>Section:</b> 1
<b>Original Text:</b>
1. MUST This word, or the terms "REQUIRED" or "SHALL", mean that the
definition is an absolute requirement of the specification.
<b>Corrected Text:</b>
1. MUST This word, or the terms "REQUIRED" or "SHALL", means that the
definition is an absolute requirement of the specification.
</pre>
<b>Notes:</b><br>
</div>
</div>
2. MUST NOT This phrase, or the phrase "SHALL NOT", mean that the
definition is an absolute prohibition of the specification.
3. SHOULD This word, or the adjective "RECOMMENDED", mean that there
may exist valid reasons in particular circumstances to ignore a
particular item, but the full implications must be understood and
carefully weighed before choosing a different course.
4. SHOULD NOT This phrase, or the phrase "NOT RECOMMENDED" mean that
there may exist valid reasons in particular circumstances when the
particular behavior is acceptable or even useful, but the full
implications should be understood and the case carefully weighed
before implementing any behavior described with this label.
<span class="Verified-inline-styling" id="inline-5101">5. MAY This word, or the adjective "OPTIONAL", mean that an item is <button id="btn_5101" target="expand_5101" onclick="hideFunction(&quot;expand_5101&quot;)">Expand</button>
truly optional. One vendor may choose to include the item because a
particular marketplace requires it or because the vendor feels that
it enhances the product while another vendor may omit the same item.
An implementation which does not include a particular option MUST be
prepared to interoperate with another implementation which does
include the option, though perhaps with reduced functionality. In the
same vein an implementation which does include a particular option
MUST be prepared to interoperate with another implementation which
does not include the option (except, of course, for the feature the
option provides).</span>
<div class="nodeCloseClass" id="expand_5101"><div class="Verified-endnote-styling" id="eid5101">
<pre><b><i><a href="https://www.rfc-editor.org/errata/eid5101">EID 5101</a> (Verified) is as follows:</i></b>
<b>Section:</b> 5
<b>Original Text:</b>
5. MAY This word, or the adjective "OPTIONAL", mean that an item is
truly optional. One vendor may choose to include the item because a
particular marketplace requires it or because the vendor feels that
it enhances the product while another vendor may omit the same item.
An implementation which does not include a particular option MUST be
prepared to interoperate with another implementation which does
include the option, though perhaps with reduced functionality. In the
same vein an implementation which does include a particular option
MUST be prepared to interoperate with another implementation which
does not include the option (except, of course, for the feature the
option provides.)
<b>Corrected Text:</b>
5. MAY This word, or the adjective "OPTIONAL", mean that an item is
truly optional. One vendor may choose to include the item because a
particular marketplace requires it or because the vendor feels that
it enhances the product while another vendor may omit the same item.
An implementation which does not include a particular option MUST be
prepared to interoperate with another implementation which does
include the option, though perhaps with reduced functionality. In the
same vein an implementation which does include a particular option
MUST be prepared to interoperate with another implementation which
does not include the option (except, of course, for the feature the
option provides).
</pre>
<b>Notes:</b><br>
Full stop should appear outside the parentheses in the last sentence.
</div>
</div>
6. Guidance in the use of these Imperatives
Imperatives of the type defined in this memo must be used with care
and sparingly. In particular, they MUST only be used where it is
actually required for interoperation or to limit behavior which has
potential for causing harm <span class="Verified-inline-styling" id="inline-494">(e.g., limiting retransmissions)</span> For <button id="btn_494" target="expand_494" onclick="hideFunction(&quot;expand_494&quot;)">Expand Multiple</button>
<div class="nodeCloseClass" id="expand_494"><div class="Verified-endnote-styling" id="eid494">
<pre><b><i><a href="https://www.rfc-editor.org/errata/eid494">EID 494</a> (Verified) is as follows:</i></b>
<b>Section:</b> 6
<b>Original Text:</b>
(e.g., limiting retransmisssions)
<b>Corrected Text:</b>
(e.g., limiting retransmissions)
</pre>
<b>Notes:</b><br>
</div>
<div class="Verified-endnote-styling" id="eid496">
<pre><b><i><a href="https://www.rfc-editor.org/errata/eid496">EID 496</a> (Verified) is as follows:</i></b>
<b>Section:</b> 6
<b>Original Text:</b>
In particular, they MUST only be used where it is actually required
for interoperation or to limit behavior which has potential for
causing harm (e.g., limiting retransmisssions) For example, they
must not be used to try to impose a particular method on
implementors where the method is not required for interoperability.
<b>Corrected Text:</b>
In particular, they MUST only be used where it is actually required
for interoperation or to limit behavior which has potential for
causing harm (e.g., limiting retransmissions). For example, they
must not be used to try to impose a particular method on
implementors where the method is not required for interoperability.
</pre>
<b>Notes:</b><br>
</div>
</div> example, they must not be used to try to impose a particular method
on implementors where the method is not required for
interoperability.
7. Security Considerations
These terms are frequently used to specify behavior with security
implications. The effects on security of not implementing a MUST or
SHOULD, or doing something the specification says MUST NOT or SHOULD
NOT be done may be very subtle. Document authors should take the time
to elaborate the security implications of not following
recommendations or requirements as most implementors will not have
had the benefit of the experience and discussion that produced the
specification.
8. Acknowledgments
The definitions of these terms are an amalgam of definitions taken
from a number of RFCs. In addition, suggestions have been
incorporated from a number of people including Robert Ullmann, Thomas
Narten, Neal McBurnett, and Robert Elz.
9. Author's Address
Scott Bradner
Harvard University
1350 Mass. Ave.
Cambridge, MA 02138
phone - +1 617 495 3864
email - sob@harvard.edu
</pre></body></html>

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