Function parseMultipartFormDataHeaders

deps/undici/undici.js:6505–6602

(input, position)

    }
    __name(parseContentDispositionAttribute, "parseContentDispositionAttribute");
    function parseMultipartFormDataHeaders(input, position) {
      let name = null;
      let filename = null;
      let contentType = null;
      let encoding = null;
      while (true) {
        if (input[position.position] === 13 && input[position.position + 1] === 10) {
          if (name === null) {
            throw parsingError("header name is null");
          }
          return { name, filename, contentType, encoding };
        }
        let headerName = collectASequenceOfBytes(
          (char) => char !== 10 && char !== 13 && char !== 58,
          input,
          position
        );
        headerName = removeChars(headerName, true, true, (char) => char === 9 || char === 32);
        if (!HTTP_TOKEN_CODEPOINTS.test(headerName.toString())) {
          throw parsingError("header name does not match the field-name token production");
        }
        if (input[position.position] !== 58) {
          throw parsingError("expected :");
        }
        position.position++;
        collectASequenceOfBytes(
          (char) => char === 32 || char === 9,
          input,
          position
        );
        switch (bufferToLowerCasedHeaderName(headerName)) {
          case "content-disposition": {
            name = filename = null;
            let filenameIsExtended = false;
            const dispositionType = collectASequenceOfBytes(
              (char) => isToken(char),
              input,
              position
            );
            if (dispositionType.toString("ascii").toLowerCase() !== "form-data") {
              throw parsingError("expected form-data for content-disposition header");
            }
            while (position.position < input.length && (input[position.position] !== 13 || input[position.position + 1] !== 10)) {
              const attribute = parseContentDispositionAttribute(input, position);
              if (!attribute) {
                break;
              }
              if (attribute.name === "name") {
                name = attribute.value;
              } else if (attribute.name === "filename") {
                if (attribute.extended) {
                  filename = attribute.value;
                  filenameIsExtended = true;
                } else if (!filenameIsExtended) {
                  filename = attribute.value;
                }
              }
            }