// Copyright 2021 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "quiche/balsa/balsa_enums.h"

namespace quiche {

const char* BalsaFrameEnums::ParseStateToString(
    BalsaFrameEnums::ParseState error_code) {
  switch (error_code) {
    case ERROR:
      return "ERROR";
    case READING_HEADER_AND_FIRSTLINE:
      return "READING_HEADER_AND_FIRSTLINE";
    case READING_CHUNK_LENGTH:
      return "READING_CHUNK_LENGTH";
    case READING_CHUNK_EXTENSION:
      return "READING_CHUNK_EXTENSION";
    case READING_CHUNK_DATA:
      return "READING_CHUNK_DATA";
    case READING_CHUNK_TERM:
      return "READING_CHUNK_TERM";
    case READING_LAST_CHUNK_TERM:
      return "READING_LAST_CHUNK_TERM";
    case READING_TRAILER:
      return "READING_TRAILER";
    case READING_UNTIL_CLOSE:
      return "READING_UNTIL_CLOSE";
    case READING_CONTENT:
      return "READING_CONTENT";
    case MESSAGE_FULLY_READ:
      return "MESSAGE_FULLY_READ";
    case NUM_STATES:
      return "UNKNOWN_STATE";
  }
  return "UNKNOWN_STATE";
}

const char* BalsaFrameEnums::ErrorCodeToString(
    BalsaFrameEnums::ErrorCode error_code) {
  switch (error_code) {
    case BALSA_NO_ERROR:
      return "BALSA_NO_ERROR";
    case NO_STATUS_LINE_IN_RESPONSE:
      return "NO_STATUS_LINE_IN_RESPONSE";
    case NO_REQUEST_LINE_IN_REQUEST:
      return "NO_REQUEST_LINE_IN_REQUEST";
    case FAILED_TO_FIND_WS_AFTER_RESPONSE_VERSION:
      return "FAILED_TO_FIND_WS_AFTER_RESPONSE_VERSION";
    case FAILED_TO_FIND_WS_AFTER_REQUEST_METHOD:
      return "FAILED_TO_FIND_WS_AFTER_REQUEST_METHOD";
    case FAILED_TO_FIND_WS_AFTER_RESPONSE_STATUSCODE:
      return "FAILED_TO_FIND_WS_AFTER_RESPONSE_STATUSCODE";
    case FAILED_TO_FIND_WS_AFTER_REQUEST_REQUEST_URI:
      return "FAILED_TO_FIND_WS_AFTER_REQUEST_REQUEST_URI";
    case FAILED_TO_FIND_NL_AFTER_RESPONSE_REASON_PHRASE:
      return "FAILED_TO_FIND_NL_AFTER_RESPONSE_REASON_PHRASE";
    case FAILED_TO_FIND_NL_AFTER_REQUEST_HTTP_VERSION:
      return "FAILED_TO_FIND_NL_AFTER_REQUEST_HTTP_VERSION";
    case INVALID_WS_IN_STATUS_LINE:
      return "INVALID_WS_IN_STATUS_LINE";
    case INVALID_WS_IN_REQUEST_LINE:
      return "INVALID_WS_IN_REQUEST_LINE";
    case MULTIPLE_SPACES_IN_STATUS_LINE:
      return "MULTIPLE_SPACES_IN_STATUS_LINE";
    case MULTIPLE_SPACES_IN_REQUEST_LINE:
      return "MULTIPLE_SPACES_IN_REQUEST_LINE";
    case OBS_FOLD_IN_HEADERS:
      return "OBS_FOLD_IN_HEADERS";
    case FAILED_CONVERTING_STATUS_CODE_TO_INT:
      return "FAILED_CONVERTING_STATUS_CODE_TO_INT";
    case INVALID_TARGET_URI:
      return "INVALID_TARGET_URI";
    case HEADERS_TOO_LONG:
      return "HEADERS_TOO_LONG";
    case UNPARSABLE_CONTENT_LENGTH:
      return "UNPARSABLE_CONTENT_LENGTH";
    case MAYBE_BODY_BUT_NO_CONTENT_LENGTH:
      return "MAYBE_BODY_BUT_NO_CONTENT_LENGTH";
    case REQUIRED_BODY_BUT_NO_CONTENT_LENGTH:
      return "REQUIRED_BODY_BUT_NO_CONTENT_LENGTH";
    case HEADER_MISSING_COLON:
      return "HEADER_MISSING_COLON";
    case INVALID_CHUNK_LENGTH:
      return "INVALID_CHUNK_LENGTH";
    case CHUNK_LENGTH_OVERFLOW:
      return "CHUNK_LENGTH_OVERFLOW";
    case INVALID_CHUNK_EXTENSION:
      return "INVALID_CHUNK_EXTENSION";
    case INVALID_CHUNK_FRAMING:
      return "INVALID_CHUNK_FRAMING";
    case STRAY_DATA_AFTER_CHUNK:
      return "STRAY_DATA_AFTER_CHUNK";
    case MULTIPLE_CONTENT_LENGTH_KEYS:
      return "MULTIPLE_CONTENT_LENGTH_KEYS";
    case MULTIPLE_TRANSFER_ENCODING_KEYS:
      return "MULTIPLE_TRANSFER_ENCODING_KEYS";
    case UNKNOWN_TRANSFER_ENCODING:
      return "UNKNOWN_TRANSFER_ENCODING";
    case BOTH_TRANSFER_ENCODING_AND_CONTENT_LENGTH:
      return "BOTH_TRANSFER_ENCODING_AND_CONTENT_LENGTH";
    case INVALID_HEADER_FORMAT:
      return "INVALID_HEADER_FORMAT";
    case HTTP2_CONTENT_LENGTH_ERROR:
      return "HTTP2_CONTENT_LENGTH_ERROR";
    case HTTP2_INVALID_HEADER_FORMAT:
      return "HTTP2_INVALID_HEADER_FORMAT";
    case HTTP2_INVALID_REQUEST_PATH:
      return "HTTP2_INVALID_REQUEST_PATH";
    case INVALID_TRAILER_FORMAT:
      return "INVALID_TRAILER_FORMAT";
    case TRAILER_TOO_LONG:
      return "TRAILER_TOO_LONG";
    case TRAILER_MISSING_COLON:
      return "TRAILER_MISSING_COLON";
    case OBS_FOLD_IN_TRAILERS:
      return "OBS_FOLD_IN_TRAILERS";
    case INTERNAL_LOGIC_ERROR:
      return "INTERNAL_LOGIC_ERROR";
    case INVALID_HEADER_CHARACTER:
      return "INVALID_HEADER_CHARACTER";
    case INVALID_HEADER_NAME_CHARACTER:
      return "INVALID_HEADER_NAME_CHARACTER";
    case INVALID_TRAILER_NAME_CHARACTER:
      return "INVALID_TRAILER_NAME_CHARACTER";
    case UNSUPPORTED_100_CONTINUE:
      return "UNSUPPORTED_100_CONTINUE";
    case INVALID_REQUEST_METHOD:
      return "INVALID_REQUEST_METHOD";
    // This should be the last case in the switch statement.
    case NUM_ERROR_CODES:
      return "UNKNOWN_ERROR";
  }
  return "UNKNOWN_ERROR";
}

}  // namespace quiche