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HTTPResponse.hpp
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HTTPResponse.hpp
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/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* HTTPResponse.hpp :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: rbourgea <rbourgea@student.42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2021/12/07 17:04:43 by rbourgea #+# #+# */
/* Updated: 2021/12/18 16:52:10 by dgoudet ### ########.fr */
/* */
/* ************************************************************************** */
#ifndef HTTPRESPONSE_HPP
# define HTTPRESPONSE_HPP
# include "webserv.hpp"
# include "CGI.hpp"
# include "serverAndClient.hpp"
# include <sys/time.h>
# include "PollFd.hpp"
struct statusLine
{
std::string httpVersion;
std::string statusCode;
std::string reasonPhrase;
};
class HTTPResponse
{
public:
HTTPResponse(HTTPRequest &request, PollFd &vPfd): r(request), _vPfd(vPfd)
{
sL.httpVersion = "HTTP/1.1";
invalidHost = true;
}
HTTPResponse(HTTPRequest &request, struct server serv, PollFd &vPfd): r(request), s(serv), _vPfd(vPfd)
{
sL.httpVersion = "HTTP/1.1";
invalidHost = false;
}
~HTTPResponse(){;}
void defineResponse()
{
if (!checkHost())
{
getLoc();
if (loc.redi.num > -1)
redirectClient();
else if (!checkRequest() && !checkClientBodySize() && !checkMethod())
{
fileLocation = loc.root;
fileLocation+= r.rL.requestTarget;
if (!r.isCGI)
{
if (r.isUpload)
{
foreachUpload();
}
else
{
struct stat s;
stat(fileLocation.c_str(), &s);
if (s.st_mode & S_IFDIR)
{
if (loc.dirList == "ON")
defineResponseForCGI();
else
{
if (isPathExist(fileLocation))
{
fileLocation = loc.root + "/" + loc.defaultFile;
defineResponseHeaderForNonCGI();
if (contentLength.size() > 0)
body = getFileContent(fileLocation);
}
else
{
sL.statusCode = "404";
sL.reasonPhrase = "Not found";
errorPageLocation(404);
}
}
}
else
{
defineResponseHeaderForNonCGI();
if (contentLength.size() > 0)
body = getFileContent(fileLocation);
}
}
}
else
defineResponseForCGI();
}
}
aggregateResponse();
}
private:
void getLoc()
{
int comp(0);
if (r.rL.requestTarget.size() > 0)
{
for (size_t i(0); i < s.loc.size(); i++)
{
int n(0);
size_t j(0);
while (j < s.loc[i].path.size() && j < r.rL.requestTarget.size() &&
s.loc[i].path[j] == r.rL.requestTarget[j])
{
j++;
n++;
}
if (n > comp && j == s.loc[i].path.size())
{
loc = s.loc[i];
comp = n;
}
}
}
}
void redirectClient()
{
std::stringstream ss;
ss << loc.redi.num;
ss >> sL.statusCode;
if (loc.redi.num == 301)
sL.reasonPhrase = "Moved permanently";
redirectionLocation = loc.redi.path;
}
void aggregateResponse()
{
resp+= sL.httpVersion + " " + sL.statusCode + " " + sL.reasonPhrase + "\r\n";
if (!isPathExist(fileLocation) && !r.isCGI && loc.redi.num == -1)
resp+="Content-Length: 0\r\n\r\n";
else
{
if (r.rL.method != "DELETE" && loc.redi.num == -1)
{
if (r.isUpload && sL.statusCode != "413")
resp+= "Content-Length: 13 \r\n\r\nUpload Done !";
else
resp+= "Content-Length: " + contentLength + "\r\n";
if (contentType.size() > 0)
{
resp+= "Content-Type: " + contentType + "\r\n";
resp+= "\r\n";
}
resp+= body;
}
else
{
if (redirectionLocation.size() > 0)
resp+= "Location: " + redirectionLocation + "\r\n";
resp+= "\r\n";
}
}
}
bool checkHost()
{
if (invalidHost == true)
{
sL.statusCode = "400";
sL.reasonPhrase = "Bad request";
errorPageLocation(400);
return (true);
}
else
return (false);
}
void defineResponseHeaderForNonCGI()
{
if (!checkFile(fileLocation))
{
if (r.rL.method == "DELETE")
deleteFile();
else
contentType = findFileType(fileLocation);
sL.statusCode = "200";
sL.reasonPhrase = "OK";
contentLength = countFileChar(fileLocation);
}
}
void defineResponseForCGI()
{
CGI *cgi = new CGI;
std::string CGI_PATH = CGIparsing(r, cgi);
std::cout << "CGI_PATH???" << CGI_PATH << std::endl;
if (CGI_PATH != "")
{
cgi->print_env();
std::string message = cgi->execute(CGI_PATH, r, _vPfd);
if (message != "Error")
{
size_t position = message.find("\r\n\r\n");
//size_t position2 = message.find("\r\n\r\n", position + 1);
sL.statusCode = "200";
sL.reasonPhrase = "OK";
contentLength = cgi->get_buffer_size(position + 4);
body = message;
}
else
{
sL.statusCode = "500";
sL.reasonPhrase = "Internal Server Error";
errorPageLocation(500);
}
}
delete cgi;
}
void deleteFile()
{
if (unlink(fileLocation.c_str()) == 0)
std::cout << "The file is deleted successfully." << std::endl;
else
{
std::cout << "The file is not deleted." << std::endl;
perror("error");
}
}
int pathType(std::string path, time_t *file_date)
{
struct stat buffer;
struct timezone tz;
struct timeval t;
gettimeofday(&t, &tz);
int exist = stat(path.c_str(), &buffer);
if (file_date)
*file_date = buffer.st_mtime + tz.tz_minuteswest * 60;
if (exist == 0)
{
if (S_ISREG(buffer.st_mode))
return (1);
else
return (2);
}
else
return (0);
}
int nthOccurrence(const std::string& str, const std::string& findMe, int nth)
{
size_t pos = 0;
int cnt = 0;
while( cnt != nth )
{
pos+=1;
pos = str.find(findMe, pos);
if ( pos == std::string::npos )
return -1;
cnt++;
}
return pos;
}
std::vector<std::string> split (std::string s, std::string delimiter) {
std::size_t pos_start = 0, pos_end, delim_len = delimiter.length();
std::string token;
std::vector<std::string> res;
while ((pos_end = s.find (delimiter, pos_start)) != std::string::npos) {
token = s.substr (pos_start, pos_end - pos_start);
pos_start = pos_end + delim_len;
res.push_back (token);
}
res.push_back (s.substr (pos_start));
return res;
}
void foreachUpload()
{
std::string upload_body(r.body.begin(), r.body.end());
std::string delimiter = "--" + r.boundary;
//std::cout << RED << " delimiter = [" << delimiter << "] " << NC << std::endl;
std::vector<std::string> splitted_body = split(upload_body, delimiter);
for (size_t i = 0; i < splitted_body.size(); i++) {
//std::cout << RED << " [ " << splitted_body[i] << " ] " << NC << std::endl;
if (splitted_body[i].find("filename") != std::string::npos)
uploadParsing(splitted_body[i]);
}
}
void uploadParsing(std::string upload_body)
{
upload_filename = upload_body.substr(nthOccurrence(upload_body, "\"", 3));
upload_filename.erase(0, 1);
std::size_t pt = upload_filename.find("\"");
upload_filename.erase(upload_filename.begin() + pt, upload_filename.end());
std::string content = upload_body.substr(upload_body.find("\r\n\r\n"));
content.erase(0, 4);
content.erase(content.end() - 2, content.end());
uploadFile(upload_filename, "./" + loc.root + "/" +loc.uploadDir, content);
}
void uploadFile(std::string filename, std::string upload_path, std::string content_file)
{
int fd = -1;
std::string path;
path = upload_path + "/" + filename;
int type = pathType(path, NULL);
try
{
if (type == 1)
{
if ((fd = open(path.c_str(), O_WRONLY | O_TRUNC, 0644)) == -1)
throw("Error 500");
write(fd, content_file.c_str(), content_file.length());
close(fd);
sL.statusCode = "200";
sL.reasonPhrase = "OK";
}
else if (type == 0)
{
if ((fd = open(path.c_str(), O_WRONLY | O_APPEND | O_CREAT, 0644)) == -1)
throw ("Error 500");
write(fd, content_file.c_str(), content_file.length());
close(fd);
sL.statusCode = "201";
sL.reasonPhrase = "OK";
}
else
{
sL.statusCode = "500";
sL.reasonPhrase = "Internal Server Error";
errorPageLocation(500);
}
}
catch (std::exception & ex)
{
sL.statusCode = "500";
sL.reasonPhrase = "Internal Server Error";
errorPageLocation(500);
}
}
std::string CGIparsing(HTTPRequest &request, CGI *cgi)
{
std::string FILE_PATH = "", path = fileLocation;
//std::cout << ">> ext = " << ext << std::endl;
if (request.isCGI == true)
{
std::string ext = std::string(path.substr(path.find_last_of(".")), 0, path.find_last_of("/"));
cgi->add_variable("SERVER_SOFTWARE", "webserv/1.0");
cgi->add_variable("SERVER_NAME", "localhost"); // Le nom d'hôte, alias DNS ou adresse IP du serveur.
cgi->add_variable("GATEWAY_INTERFACE", "CGI/1.1");
cgi->add_variable("SERVER_PROTOCOL", "HTTP/1.1");
std::string string;
std::stringstream ss;
ss << s.port;
ss >> string;
cgi->add_variable("SERVER_PORT", string); // Le port de la requête
cgi->add_variable("REQUEST_METHOD", request.rL.method);
//cgi->add_variable("PATH_TRANSLATED", ""); // on laisse tombé ça on copie le path_info
if (request.rL.requestTarget.find("?") != std::string::npos)
{
cgi->add_variable("QUERY_STRING", request.defineQueryString());
cgi->add_variable("SCRIPT_NAME", request.defineScriptName("?"));
FILE_PATH = loc.root + request.defineScriptName("?");
}
else if (ext.find("/") != std::string::npos)
{
cgi->add_variable("PATH_INFO", request.definePathInfo(ext));
cgi->add_variable("SCRIPT_NAME", request.defineScriptName("/"));
FILE_PATH = loc.root + request.defineScriptName("/");
}
else
{
cgi->add_variable("SCRIPT_NAME", request.defineScriptName(""));
FILE_PATH = loc.root + request.defineScriptName("");
}
//cgi->add_variable("REMOTE_HOST", ""); // on laisse vide car DNS inverse désactivé
//cgi->add_variable("REMOTE_ADDR", ""); // IP du client ??? Demander si on doit vraiment le faire
cgi->add_variable("AUTH_TYPE", "Basic");
//cgi->add_variable("REMOTE_USER", "");
//cgi->add_variable("CONTENT_TYPE", ""); // Récuperer le contenu du POST
//cgi->add_variable("CONTENT_LENGTH", contentLength.c_str());
if (request.headerFields.find("Accept") != request.headerFields.end())
cgi->add_variable("HTTP_ACCEPT", request.headerFields.find("Accept")->second);
if (request.headerFields.find("Accept-Language") != request.headerFields.end())
cgi->add_variable("HTTP_ACCEPT_LANGUAGE", request.headerFields.find("Accept-Language")->second);
if (request.headerFields.find("User-Agent") != request.headerFields.end()) //Ask Raph if test can be performed directly in add_variables
cgi->add_variable("HTTP_USER_AGENT", request.headerFields.find("User-Agent")->second);
if (request.headerFields.find("Referer") != request.headerFields.end())
cgi->add_variable("HTTP_REFERER", request.headerFields.find("Referer")->second);
if (request.headerFields.find("Cookie") != request.headerFields.end())
cgi->add_variable("HTTP_COOKIE", request.headerFields.find("Cookie")->second);
if (checkFile(std::string(loc.root + getenv("SCRIPT_NAME"))))
return ("");
return (FILE_PATH);
}
else
{
std::cout << RED << fileLocation << NC << std::endl;
cgi->add_variable("QUERY_STRING", "path=./" + std::string(fileLocation, 0, fileLocation.size()));
return (loc.root + "/cgi-bin/defaultindex.cgi");
}
}
unsigned long long fileSize(std::string string)
{
std::ifstream in_file(string.c_str(), std::ios::binary);
in_file.seekg(0, std::ios::end);
unsigned long long file_size = in_file.tellg();
return (file_size);
}
std::string countFileChar(std::string string)
{
unsigned long long file_size = fileSize(string);
std::stringstream ss;
ss << file_size;
ss >> string;
return (string);
}
void errorPageLocation(int code)
{
std::string codeToString;
std::stringstream ss;
ss << code;
ss >> codeToString;
size_t i(0);
contentType = "text/html";
while (i < s.error.size() && s.error[i].num != code)
i++;
if (i < s.error.size() && s.error[i].num == code)
fileLocation = s.error[i].path;
else
fileLocation = loc.root + "/" + codeToString + ".html";
if (isPathExist(fileLocation))
{
contentLength = countFileChar(fileLocation);
if (contentLength.size() > 0)
body = getFileContent(fileLocation);
contentType = "text/html";
}
}
bool isPathExist(const std::string &s)
{
struct stat buffer;
return (stat (s.c_str(), &buffer) == 0);
}
bool checkFilePerm(std::string& path)
{
int errno;
if (r.isCGI)
if (access(path.c_str(), X_OK) != 0)
if (errno == 13) //13 = EACCES --> Permission denied.
return (0);
if (access(path.c_str(), R_OK) != 0)
if (errno == 13) //13 = EACCES --> Permission denied.
return (0);
return (1);
}
bool checkMethod()
{
size_t i(0);
bool authorized(false);
if (loc.method.size() == 0)
return (false);
while (i < loc.method.size() && authorized == false)
{
if (loc.method[i] == r.rL.method)
authorized = true;
i++;
}
if (authorized == true)
return (false);
else
{
//std::cout << "ERROR 405\n";
sL.statusCode = "405";
sL.reasonPhrase = "Method not allowed";
errorPageLocation(405);
return (true);
}
}
bool checkFile(std::string location)
{
if (!isPathExist(location))
{
sL.statusCode = "404";
sL.reasonPhrase = "Not found";
errorPageLocation(404);
return (true);
}
if (!checkFilePerm(location))
{
sL.statusCode = "403";
sL.reasonPhrase = "Forbidden";
errorPageLocation(403);
return (true);
}
return (false);
}
bool checkRequest()
{
if (r.rL.method.size() == 0 || r.rL.requestTarget.size() == 0 || r.rL.httpVersion.size() == 0)
{
sL.statusCode = "400";
sL.reasonPhrase = "Bad request";
errorPageLocation(400);
return (true);
}
if (r.rL.method != "GET" && r.rL.method != "POST" && r.rL.method != "DELETE")
{
sL.statusCode = "405";
sL.reasonPhrase = "Method not allowed";
errorPageLocation(405);
return (true);
}
if (r.rL.httpVersion.find("1.1") == std::string::npos)
{
sL.statusCode = "505";
sL.reasonPhrase = "HTTP version not supported";
errorPageLocation(505);
return (true);
}
return (false);
}
bool checkClientBodySize()
{
if (s.max_body_size > 0)
{
if (r.bodySize > s.max_body_size)
{
sL.statusCode = "413";
sL.reasonPhrase = "Request Entity Too Large";
errorPageLocation(413);
return (true);
}
}
return (false);
}
std::string getFileContent(const std::string& path)
{
std::basic_ifstream<char> fin(path.c_str(), std::ios::binary);
std::ostringstream oss;
oss << fin.rdbuf();
std::string data(oss.str());
return (data);
}
std::string findFileType(std::string path)
{
std::string str = path.substr(path.find_last_of(".") + 1);
if (str == "html" || str == "htm" || str == "shtml")
return ("text/html");
else if (str == "css")
return ("text/css");
else if (str == "xml")
return ("text/xml");
else if (str == "gif")
return ("image/gif");
else if (str == "jpeg")
return ("image/jpeg");
else if (str == "jpg")
return ("image/jpeg");
else if (str == "js")
return ("application/javascript");
else if (str == "atom")
return ("application/atom+xml");
else if (str == "rss")
return ("application/rss+xml");
else if (str == "mml")
return ("text/mathml");
else if (str == "txt")
return ("text/plain");
else if (str == "jad")
return ("text/vnd.sun.j2me.app-descriptor");
else if (str == "wml")
return ("text/vnd.wap.wml");
else if (str == "htc")
return ("text/text/x-component");
else if (str == "png")
return ("image/png");
else if (str == "svg" || str == "svgz")
return ("image/svg+xml");
else if (str == "tif" || str == "tiff")
return ("image/tiff");
else if (str == "wbmp")
return ("image/vnd.wap.wbmp");
else if (str == "webp")
return ("image/webp");
else if (str == "ico")
return ("image/x-icon");
else if (str == "jng")
return ("image/x-jng");
else if (str == "bmp")
return ("image/x-ms-bmp");
else if (str == "woff")
return ("font/woff");
else if (str == "woff2")
return ("font/woff2");
else if (str == "jar" || str == "war" || str == "ear")
return ("application/java-archive");
else if (str == "json")
return ("application/json");
else if (str == "hqx")
return ("application/mac-binhex40");
else if (str == "doc")
return ("application/msword");
else if (str == "pdf")
return ("application/pdf");
else if (str == "ps" || str == "eps" || str == "ai")
return ("application/postscript");
else if (str == "rtf")
return ("application/rtf");
else if (str == "m3u8")
return ("application/vnd.apple.mpegurl");
else if (str == "kml")
return ("application/vnd.google-earth.kml+xml");
else if (str == "kmz")
return ("application/vnd.google-earth.kmz");
else if (str == "xls")
return ("application/vnd.ms-excel");
else if (str == "eot")
return ("application/vnd.ms-fontobject");
else if (str == "ppt")
return ("application/vnd.ms-powerpoint");
else if (str == "odg")
return ("application/vnd.oasis.opendocument.graphics");
else if (str == "odp")
return ("application/vnd.oasis.opendocument.presentation");
else if (str == "ods")
return ("application/vnd.oasis.opendocument.spreadsheet");
else if (str == "odt")
return ("application/vnd.oasis.opendocument.text");
else if (str == "pptx")
return ("application/vnd.openxmlformats-officedocument.presentationml.presentation");
else if (str == "xlsx")
return ("application/vnd.openxmlformats-officedocument.spreadsheetml.sheet");
else if (str == "docx")
return ("application/vnd.openxmlformats-officedocument.wordprocessingml.document");
else if (str == "bin" || str == "exe" || str == "ddl" || str == "deb" || str == "dmg"
|| str == "iso" || str == "img" || str == "msi" || str == "msp" || str == "msm")
return ("application/octet-stream");
else if (str == "wmlc")
return ("application/vnd.wap.wmlc");
else if (str == "7z")
return ("application/x-7z-compressed");
else if (str == "cco")
return ("application/x-cocoa");
else if (str == "jardiff")
return ("application/x-java-archive-diff");
else if (str == "jnlp")
return ("application/x-java-jnlp-file");
else if (str == "run")
return ("application/x-makeself");
else if (str == "pl" || str == "pm")
return ("application/x-perl");
else if (str == "prc" || str == "pdb")
return ("application/x-pilot");
else if (str == "rar")
return ("application/x-rar-compressed");
else if (str == "rpm")
return ("application/x-redhat-package-manager");
else if (str == "sea")
return ("application/x-sea");
else if (str == "swf")
return ("application/x-shockwave-flash");
else if (str == "sit")
return ("application/x-stuffit");
else if (str == "tcl" || str == "tk")
return ("application/x-tcl");
else if (str == "der" || str == "pem" || str == "crt")
return ("application/x-x509-ca-cert");
else if (str == "xpi")
return ("application/x-xpinstall");
else if (str == "xhtml")
return ("application/xhtml+xml");
else if (str == "xspf")
return ("application/xspf+xml");
else if (str == "zip")
return ("application/zip");
else if (str == "mid" || str == "midi" || str == "kar")
return ("audio/midi");
else if (str == "mp3")
return ("audio/mpeg");
else if (str == "ogg")
return ("audio/ogg");
else if (str == "m4a")
return ("audio/x-m4a");
else if (str == "ra")
return ("audio/x-realaudio");
else if (str == "3gpp" || str == "3gp")
return ("video/3gpp");
else if (str == "ts")
return ("video/mp2t");
else if (str == "mp4")
return ("video/mp4");
else if (str == "mpeg" || str == "mpg")
return ("video/mpeg");
else if (str == "mov")
return ("video/quicktime");
else if (str == "webm")
return ("video/webm");
else if (str == "flv")
return ("video/x-flv");
else if (str == "m4v")
return ("video/x-m4v");
else if (str == "mng")
return ("video/x-mng");
else if (str == "asx" || str == "asf")
return ("video/x-ms-asf");
else if (str == "wmv")
return ("video/x-ms-wmv");
else if (str == "avi")
return ("video/x-msvideo");
return ("text/plain");
}
HTTPRequest r;
struct server s;
struct location loc;
bool invalidHost;
std::string fileLocation;
std::string contentType;
std::string contentLength;
std::string body;
std::string redirectionLocation;
std::string upload_filename;
PollFd &_vPfd;
public:
std::string resp;
struct statusLine sL;
};
#endif