feed()

void fl::HttpRequestParser::feed

(

fl::span< const u8 >

data

)

Definition at line 72 of file http_parser.cpp.hpp.

                                                  {
    mBuffer.insert(mBuffer.end(), data.begin(), data.end());
 
    // State machine: parse incrementally
    bool progress = true;
    while (progress && mState != COMPLETE) {
        progress = false;
 
        switch (mState) {
            case READ_REQUEST_LINE:
 
                if (parseRequestLine()) {
 
                    mState = READ_HEADERS;
                    progress = true;
                }
                break;
 
            case READ_HEADERS:
 
                if (parseHeaders()) {
 
                    // Check if body is expected
                    auto contentLength = getHeader("Content-Length");
                    auto transferEncoding = getHeader("Transfer-Encoding");
 
                    if (transferEncoding.has_value() &&
                        toLower(transferEncoding.value()).find("chunked") != fl::string::npos) {
                        mIsChunked = true;
                        mState = READ_BODY;
                    } else if (contentLength.has_value()) {
                        int contentLengthInt = 0;
                        if (parseInt(contentLength.value(), contentLengthInt)) {
                            mContentLength = static_cast<size_t>(contentLengthInt);
                            mState = READ_BODY;
                        } else {
                            // Invalid Content-Length, skip to complete
                            mState = COMPLETE;
                        }
                    } else {
                        // No body
                        mState = COMPLETE;
                    }
                    progress = true;
                }
                break;
 
            case READ_BODY:
 
                parseBody();
                // parseBody() will set mState to COMPLETE when done
                // Continue processing if state changed to COMPLETE
                if (mState == COMPLETE) {
 
                    progress = true;
                }
                break;
 
            case COMPLETE:
                // Nothing to do
                break;
        }
    }
}

References HttpRequestParser(), COMPLETE, feed(), fl::basic_string::find(), getHeader(), mBuffer, mContentLength, mIsChunked, mState, fl::string::npos, parseBody(), parseHeaders(), fl::parseInt(), parseRequestLine(), READ_BODY, READ_HEADERS, and READ_REQUEST_LINE.

Referenced by ~HttpRequestParser(), and feed().

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