Method Read

src/bitcoin-cli.cpp:102–129

Named Read() in HTTPHeaders (see PR #35182).

// Named Read() in HTTPHeaders (see PR #35182).
void HTTPResponseHeaders::Read(util::LineReader& reader)
{
    // Headers https://httpwg.org/specs/rfc9110.html#rfc.section.6.3
    // A sequence of Field Lines https://httpwg.org/specs/rfc9110.html#rfc.section.5.2
    while (auto maybe_line = reader.ReadLine()) {
        const std::string_view line = *maybe_line;

        // An empty line indicates end of the headers section https://www.rfc-editor.org/rfc/rfc2616#section-4
        if (line.empty()) return;

        // Header line must have at least one ":"
        // keys are not allowed to have delimiters like ":" but values are
        // https://httpwg.org/specs/rfc9110.html#rfc.section.5.6.2
        const size_t pos{line.find(':')};
        if (pos == std::string::npos) throw HTTPError{"Header missing colon (:)"};

        // Whitespace is optional
        std::string key = util::TrimString(std::string_view(line).substr(0, pos));
        std::string value = util::TrimString(std::string_view(line).substr(pos + 1));

        // Header keys are Field Names: https://httpwg.org/specs/rfc9110.html#fields.names
        // which consist of "tokens": https://httpwg.org/specs/rfc9110.html#rfc.section.5.6.2
        // that can not be empty.
        if (key.empty()) throw HTTPError{"Empty header name"};

        m_headers.emplace_back(std::move(key), std::move(value));
    }
}

std::optional<std::string> HTTPResponseHeaders::FindFirst(std::string_view key) const
{