HTTPRequest.cpp

#include "HTTPRequest.h"
#include <sstream>

bool parseRequest(const std::string& requestText, HTTPRequest& request) {

    std::istringstream stream(requestText);

    // Read the request line
    std::string requestLine;

    if (!std::getline(stream, requestLine)) { // store in requestLine the first line of the request
        return false;
    }

    // Remove '\r' from the end
    if (!requestLine.empty() && requestLine.back() == '\r') {
        requestLine.pop_back();
    }

    // Parse method, path and version
    std::istringstream requestLineStream(requestLine);

    if (!(requestLineStream
            >> request.method
            >> request.path
            >> request.version)) {

        return false;
    }

    // Parse headers
    std::string headerLine;

    while (std::getline(stream, headerLine)) {

        if (!headerLine.empty() && headerLine.back() == '\r') {
            headerLine.pop_back();
        }

        // Empty line means headers are finished
        if (headerLine.empty()) {
            break;
        }

        size_t colon = headerLine.find(':');

        if (colon == std::string::npos) {
            return false;
        }

        std::string name = headerLine.substr(0, colon);
        std::string value = headerLine.substr(colon + 1);

        // Remove leading spaces from value
        size_t firstNonSpace = value.find_first_not_of(' ');

        if (firstNonSpace != std::string::npos) {
            value = value.substr(firstNonSpace);
        } else {
            value = "";
        }

        request.headers[name] = value;
    }

    return true;
}