nsNewsUtils.cpp - mozsearch

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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */

/* This Source Code Form is subject to the terms of the Mozilla Public

 * License, v. 2.0. If a copy of the MPL was not distributed with this

 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#include "msgCore.h"

#include "nntpCore.h"

#include "nsNewsUtils.h"

#include "nsMsgUtils.h"

/* parses NewsMessageURI */

nsresult nsParseNewsMessageURI(const nsACString& uri, nsCString& group,

                               nsMsgKey* key) {

  NS_ENSURE_ARG_POINTER(key);

  const nsPromiseFlatCString& uriStr = PromiseFlatCString(uri);

  int32_t keySeparator = uriStr.FindChar('#');

  if (keySeparator != -1) {

    int32_t keyEndSeparator = MsgFindCharInSet(uriStr, "?&", keySeparator);

    // Grab between the last '/' and the '#' for the key

    group = StringHead(uriStr, keySeparator);

    int32_t groupSeparator = group.RFind("/");

    if (groupSeparator == -1) return NS_ERROR_FAILURE;

    // Our string APIs don't let us unescape into the same buffer from earlier,

    // so escape into a temporary

    nsAutoCString unescapedGroup;

    MsgUnescapeString(Substring(group, groupSeparator + 1), 0, unescapedGroup);

    group = unescapedGroup;

    nsAutoCString keyStr;

    if (keyEndSeparator != -1)

      keyStr = Substring(uriStr, keySeparator + 1,

                         keyEndSeparator - (keySeparator + 1));

    else

      keyStr = Substring(uriStr, keySeparator + 1);

    nsresult errorCode;

    *key = keyStr.ToInteger(&errorCode);

    return errorCode;

  return NS_ERROR_FAILURE;

nsresult nsCreateNewsBaseMessageURI(const nsACString& baseURI,

                                    nsCString& baseMessageURI) {

  nsAutoCString tailURI(baseURI);

  // chop off news:/

  if (tailURI.Find(kNewsRootURI) == 0) tailURI.Cut(0, PL_strlen(kNewsRootURI));

  baseMessageURI = kNewsMessageRootURI;

  baseMessageURI += tailURI;

  return NS_OK;