add extern function for http message parsing

+ wip compare fields server and script
+ g tout cassey
This commit is contained in:
hugogogo
2022-08-09 11:19:46 +02:00
parent ae9a9b37f1
commit 3dad938e3c
13 changed files with 225 additions and 86 deletions

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@@ -32,7 +32,7 @@
extern bool g_run;
extern int g_last_signal;
void signal_handler(int signum);
void signal_handler(int signum);
// these might only be TMP
# define FAILURE -1
@@ -93,7 +93,6 @@ class Webserv
ServerConfig &_determine_process_server(Client *client);
LocationConfig &_determine_location(ServerConfig &server, std::string const &path);
void _response_correction(Client *client);
// cgi_script.cpp
bool _is_cgi(Client *client);
std::string _exec_cgi(Client *client);
@@ -101,6 +100,9 @@ class Webserv
char* _dup_env(std::string var, std::string val);
char* _dup_env(std::string var, int i);
std::string _exec_script(Client *client, char **env);
void _check_script_output(Client *client, std::string output);
void _check_script_status(Client *client, std::string output);
void _check_script_fields(Client *client, std::string output);
// epoll_update.cpp
int _epoll_update(int fd, uint32_t events, int op);
int _epoll_update(int fd, uint32_t events, int op, void *ptr);
@@ -115,6 +117,7 @@ class Webserv
void _listen(int socket_fd, unsigned int max_connections);
void _init_http_status_map();
void _init_mime_types_map();
};
#endif

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@@ -102,7 +102,8 @@ std::string Webserv::_exec_script(Client *client, char **env)
close(FD_RD_FR_CHLD);
dup2(FD_RD_FR_PRNT, STDIN_FILENO);
dup2(FD_WR_TO_PRNT, STDOUT_FILENO);
execve(client->get_rq_script_path().c_str(), nll, env);
//execve(client->get_rq_script_path().c_str(), nll, env);
execve("truc", nll, env);
std::cerr << "execve crashed.\n";
}
else
@@ -119,13 +120,42 @@ std::string Webserv::_exec_script(Client *client, char **env)
script_output += buf;
memset(buf, '\0', CGI_BUF_SIZE);
}
close(FD_RD_FR_CHLD);
}
if (script_output.empty())
script_output = "Status: 500\r\n\r\n";
// DEBUG
std::cout << "\n______response______\n" << script_output << "\n____end response____\n";
return script_output;
}
void Webserv::_check_script_output(Client *client, std::string output)
{
// TODO: it doesn't work with execve error, i don't know why yet ?
_check_script_status(client, output);
_check_script_fields(client, output);
}
void Webserv::_check_script_status(Client *client, std::string output)
{
size_t pos;
int status_pos;
pos = output.find("Status:");
if (pos != std::string::npos)
{
status_pos = pos + std::string("Status:").size();
client->status = atoi(output.c_str() + status_pos);
::delete_line_in_string(&output, pos, CRLF);
}
client->status = 200;
}
void Webserv::_check_script_fields(Client *client, std::string output)
{
std::map<std::string, std::string> server_fields;
std::map<std::string, std::string> script_fields;
server_fields = parse_http_headers(client->response);
script_fields = parse_http_headers(output);
// TODO: compare both map to supress duplicates
}

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@@ -0,0 +1,75 @@
#include "parsing_message_http.hpp"
size_t
parse_http_first_line(std::string message, std::vector<std::string> &line)
{
std::vector<std::string> sline;
std::string sub;
std::string tmp;
size_t pos;
size_t ret;
// TODO: check for err in substr
pos = message.find(CRLF);
sub = message.substr(0, pos);
sline = ::split(sub, ' ');
ret = sline.size();
if (ret != 3)
return ret;
for (int i = 0; i < 3; i++)
{
tmp = ::trim(sline[0], ' ');
tmp = ::trim(tmp, '\r');
line.push_back(tmp);
}
return ret;
}
std::map<std::string, std::string>
parse_http_headers(std::string message)
{
std::map<std::string, std::string> headers;
std::vector<std::string> list;
std::vector<std::string>::iterator it;
std::string sub;
std::string key;
std::string val;
size_t pos;
pos = (message).find(CRLF CRLF);
sub = (message).substr(0, pos);
list = ::split(sub, '\n');
// TODO: if (list.begin() is "first line")
list.erase(list.begin());
for (it = list.begin(); it != list.end(); it++)
{
// TODO: if pattern is not "NAME: value" return error
pos = (*it).find(':');
key = (*it).substr( 0, pos );
key = ::trim(key, ' ');
key = ::trim(key, '\r');
key = ::str_tolower(key);
val = (*it).substr( pos + 1 );
val = ::trim(val, ' ');
val = ::trim(val, '\r');
headers.insert( std::pair<std::string, std::string>(key, val) );
}
return headers;
}
std::string
parse_http_body(std::string message)
{
std::string body;
size_t pos;
pos = message.find(CRLF CRLF);
pos += std::string(CRLF CRLF).size();
// TODO: copying just like that might fail in case of binary or images
body = message.substr(pos);
return body;
}

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@@ -0,0 +1,33 @@
#ifndef PARSING_MESSAGE_HTTP_HPP
# define PARSING_MESSAGE_HTTP_HPP
# include <iostream>
# include <string>
# include <vector>
# include <map>
# include "utils.hpp"
size_t
parse_http_first_line(std::string message, std::vector<std::string> &line);
std::map<std::string, std::string>
parse_http_headers(std::string message);
std::string
parse_http_body(std::string message);
// http message structure :
//
// start-line
// request-line
// method SP target SP version
// response-line
// version SP status SP reason
// header-fields
// name ":" SP value
// CRLF
// body
#endif

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@@ -0,0 +1,2 @@
#include "parsing_request.hpp"

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@@ -145,10 +145,12 @@ void Webserv::_get(Client *client, ServerConfig &server, LocationConfig &locatio
// TMP HUGO
//
std::string script_output;
if (_is_cgi(client))
{
_exec_cgi(client);
_response_correction(client);
script_output = _exec_cgi(client);
_check_script_output(client, script_output);
std::cout << "_____________status:" << client->status << "\n";
return;
}
//
@@ -224,12 +226,6 @@ void Webserv::_get_file(Client *client, const std::string &path)
}
}
// WIP HUGO
void Webserv::_response_correction(Client *client)
{
(void)client;
}
void Webserv::_append_body(Client *client, const char *body, size_t body_size, const std::string &file_extension)
{
/*