obs-streamer-tools-plugin/core/src/http_common.cpp

/*
streamer-tools OBS Camera Plugin - HTTP helpers shared by all backends
Copyright (C) 2026 CyberCoveLLC <jknapp85@gmail.com>

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0
*/

#include "stplugin/http.h"

namespace stplugin {

// Hand-rolled rather than curl_easy_escape so the WinHTTP backend gets the
// same behaviour, and so this is testable without a live HTTP client.
// Unreserved set per RFC 3986 section 2.3.
std::string urlEncode(const std::string &value)
{
    static const char *kHex = "0123456789ABCDEF";
    std::string out;
    out.reserve(value.size());
    for (const char raw : value) {
        const unsigned char c = static_cast<unsigned char>(raw);
        const bool unreserved = (c >= 'A' && c <= 'Z') || (c >= 'a' && c <= 'z') ||
                                (c >= '0' && c <= '9') || c == '-' || c == '_' || c == '.' || c == '~';
        if (unreserved) {
            out.push_back(static_cast<char>(c));
        } else {
            out.push_back('%');
            out.push_back(kHex[c >> 4]);
            out.push_back(kHex[c & 0x0F]);
        }
    }
    return out;
}

} // namespace stplugin