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FileHoster/src/HTTPRequestProcess.cpp

98 lines
3.1 KiB
C++

#include "Helpers.hpp"
#include "Main.hpp"
#include <asio/socket_base.hpp>
#include <iostream>
#include <istream>
#include <string>
// TODO: Remove boundary from the body. Do keep other stuff like
// file type and name
void HTTPrequest::processHTTPHeader() {
std::shared_ptr<HTTPrequest> self(shared_from_this());
// HEADER read
asio::async_read_until(
sock, buffer, "\r\n\r\n", // its not the other way bud
[this, self](std::error_code error, std::size_t packageSize) {
if (!error) {
buffer.commit(packageSize);
std::istream stream(&buffer);
std::size_t octetCount = 0;
// This is HTTP main request
std::string rq;
Helpers::getlineAndCount(stream, octetCount, requestType,
' '); // HTTP request type
Helpers::getlineAndCount(stream, octetCount, requestPath,
' '); // HTTP path
Helpers::getlineAndCount(stream, octetCount,
rq); // Version, omitting for now
// Get arguments and other header stuff out of the way
processArgs();
processHeaderValues(stream, octetCount, packageSize);
processBody();
// RESPOND
processRequest();
}
});
}
// ===================
// Inline Helpers
// ===================
void inline HTTPrequest::processArgs() {
std::string key, value;
if (requestPath.find('?') != std::string::npos) {
std::stringstream pathStream(requestPath);
std::getline(pathStream, requestPath, '?'); // Keeping the path pure
while (!pathStream.eof()) {
std::getline(pathStream, key, '=');
std::getline(pathStream, value, '&');
args.insert({key, value});
}
}
}
void inline HTTPrequest::processHeaderValues(std::basic_istream<char> &stream,
std::size_t &octetCount,
std::size_t headerSize) {
std::string key, value, empty;
while (octetCount < headerSize - 2) { // -2 is due to last two \r\n\r\n combo
Helpers::getlineAndCount(stream, octetCount, key, ':');
Helpers::getlineAndCount(stream, octetCount, empty,
' '); // trim start some gangster shit right here
Helpers::getlineAndCount(stream, octetCount, value);
headers.insert({key, value});
}
}
// ===================
// BODY OF THE REQUEST
// ===================
void inline HTTPrequest::processBody() {
if (headers.find("Content-Length") != headers.end()) {
std::size_t uploadSize =
std::stoull(headers.at("Content-Length")) - buffer.size(),
octetCount = 0;
// This part needs to be sync since we want this specific instance
// execution to pause
while (octetCount < uploadSize) {
octetCount += asio::read(sock, buffer.prepare(uploadSize));
}
buffer.commit(octetCount);
std::istream bodyStream(&buffer);
bodyContent.resize(buffer.size());
bodyStream.read(bodyContent.data(), buffer.size());
buffer.consume(buffer.size()); // Just so the buffer is nice and clean
}
}