inettype.cxx

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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
 * This file is part of the LibreOffice project.
 *
 * 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/.
 *
 * This file incorporates work covered by the following license notice:
 *
 *   Licensed to the Apache Software Foundation (ASF) under one or more
 *   contributor license agreements. See the NOTICE file distributed
 *   with this work for additional information regarding copyright
 *   ownership. The ASF licenses this file to you under the Apache
 *   License, Version 2.0 (the "License"); you may not use this file
 *   except in compliance with the License. You may obtain a copy of
 *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
 */
 
#include <sal/config.h>
 
#include <array>
 
#include <tools/wldcrd.hxx>
#include <tools/inetmime.hxx>
#include <o3tl/string_view.hxx>
#include <osl/diagnose.h>
#include <svl/inettype.hxx>
 
namespace
{
 
struct MediaTypeEntry
{
    OUString    m_pTypeName;
    INetContentType m_eTypeID;
};
 
 
MediaTypeEntry const * seekEntry(OUString const & rTypeName,
                                 MediaTypeEntry const * pMap, std::size_t nSize);
 
MediaTypeEntry const aStaticTypeNameMap[CONTENT_TYPE_LAST + 1]
    = { { " ", CONTENT_TYPE_UNKNOWN },
        { CONTENT_TYPE_STR_X_CNT_FSYSBOX, CONTENT_TYPE_X_CNT_FSYSBOX },
        { CONTENT_TYPE_STR_X_CNT_FSYSFOLDER, CONTENT_TYPE_X_CNT_FSYSFOLDER },
        { CONTENT_TYPE_STR_X_CNT_FSYSSPECIALFOLDER, CONTENT_TYPE_X_CNT_FSYSSPECIALFOLDER },
        { CONTENT_TYPE_STR_APP_OCTSTREAM, CONTENT_TYPE_APP_OCTSTREAM },
        { CONTENT_TYPE_STR_APP_PDF, CONTENT_TYPE_APP_PDF },
        { CONTENT_TYPE_STR_APP_RTF, CONTENT_TYPE_APP_RTF },
        { CONTENT_TYPE_STR_APP_VND_CALC, CONTENT_TYPE_APP_VND_CALC },
        { CONTENT_TYPE_STR_APP_VND_CHART, CONTENT_TYPE_APP_VND_CHART },
        { CONTENT_TYPE_STR_APP_VND_DRAW, CONTENT_TYPE_APP_VND_DRAW },
        { CONTENT_TYPE_STR_APP_VND_IMAGE, CONTENT_TYPE_APP_VND_IMAGE },
        { CONTENT_TYPE_STR_APP_VND_IMPRESS, CONTENT_TYPE_APP_VND_IMPRESS },
        { CONTENT_TYPE_STR_APP_VND_IMPRESSPACKED, CONTENT_TYPE_APP_VND_IMPRESSPACKED },
        { CONTENT_TYPE_STR_APP_VND_MAIL, CONTENT_TYPE_APP_VND_MAIL },
        { CONTENT_TYPE_STR_APP_VND_MATH, CONTENT_TYPE_APP_VND_MATH },
        { CONTENT_TYPE_STR_APP_VND_NEWS, CONTENT_TYPE_APP_VND_NEWS },
        { CONTENT_TYPE_STR_APP_VND_OUTTRAY, CONTENT_TYPE_APP_VND_OUTTRAY },
        { CONTENT_TYPE_STR_APP_VND_TEMPLATE, CONTENT_TYPE_APP_VND_TEMPLATE },
        { CONTENT_TYPE_STR_APP_VND_WRITER, CONTENT_TYPE_APP_VND_WRITER },
        { CONTENT_TYPE_STR_APP_VND_WRITER_GLOBAL, CONTENT_TYPE_APP_VND_WRITER_GLOBAL },
        { CONTENT_TYPE_STR_APP_VND_WRITER_WEB, CONTENT_TYPE_APP_VND_WRITER_WEB },
        { CONTENT_TYPE_STR_APP_VND_SUN_XML_CALC, CONTENT_TYPE_APP_VND_SUN_XML_CALC },
        { CONTENT_TYPE_STR_APP_VND_SUN_XML_CHART, CONTENT_TYPE_APP_VND_SUN_XML_CHART },
        { CONTENT_TYPE_STR_APP_VND_SUN_XML_DRAW, CONTENT_TYPE_APP_VND_SUN_XML_DRAW },
         { CONTENT_TYPE_STR_APP_VND_SUN_XML_IMPRESS, CONTENT_TYPE_APP_VND_SUN_XML_IMPRESS },
         { CONTENT_TYPE_STR_APP_VND_SUN_XML_IMPRESSPACKED, CONTENT_TYPE_APP_VND_SUN_XML_IMPRESSPACKED },
        { CONTENT_TYPE_STR_APP_VND_SUN_XML_MATH, CONTENT_TYPE_APP_VND_SUN_XML_MATH },
        { CONTENT_TYPE_STR_APP_VND_SUN_XML_WRITER, CONTENT_TYPE_APP_VND_SUN_XML_WRITER },
        { CONTENT_TYPE_STR_APP_VND_SUN_XML_WRITER_GLOBAL, CONTENT_TYPE_APP_VND_SUN_XML_WRITER_GLOBAL },
        { CONTENT_TYPE_STR_APP_FRAMESET, CONTENT_TYPE_APP_FRAMESET },
        { CONTENT_TYPE_STR_APP_GALLERY, CONTENT_TYPE_APP_GALLERY },
        { CONTENT_TYPE_STR_APP_GALLERY_THEME, CONTENT_TYPE_APP_GALLERY_THEME },
        { CONTENT_TYPE_STR_APP_JAR, CONTENT_TYPE_APP_JAR },
        { CONTENT_TYPE_STR_APP_MACRO, CONTENT_TYPE_APP_MACRO },
        { CONTENT_TYPE_STR_APP_MSEXCEL, CONTENT_TYPE_APP_MSEXCEL },
        { CONTENT_TYPE_STR_APP_MSEXCEL_TEMPL, CONTENT_TYPE_APP_MSEXCEL_TEMPL },
        { CONTENT_TYPE_STR_APP_MSPPOINT, CONTENT_TYPE_APP_MSPPOINT },
        { CONTENT_TYPE_STR_APP_MSPPOINT_TEMPL, CONTENT_TYPE_APP_MSPPOINT_TEMPL },
        { CONTENT_TYPE_STR_APP_MSWORD, CONTENT_TYPE_APP_MSWORD },
        { CONTENT_TYPE_STR_APP_MSWORD_TEMPL, CONTENT_TYPE_APP_MSWORD_TEMPL },
        { CONTENT_TYPE_STR_APP_STARCALC, CONTENT_TYPE_APP_STARCALC },
        { CONTENT_TYPE_STR_APP_STARCHART, CONTENT_TYPE_APP_STARCHART },
        { CONTENT_TYPE_STR_APP_STARDRAW, CONTENT_TYPE_APP_STARDRAW },
        { CONTENT_TYPE_STR_APP_STARHELP, CONTENT_TYPE_APP_STARHELP },
        { CONTENT_TYPE_STR_APP_STARIMAGE, CONTENT_TYPE_APP_STARIMAGE },
        { CONTENT_TYPE_STR_APP_STARIMPRESS, CONTENT_TYPE_APP_STARIMPRESS },
        { CONTENT_TYPE_STR_APP_STARMAIL_SDM, CONTENT_TYPE_APP_STARMAIL_SDM },
        { CONTENT_TYPE_STR_APP_STARMAIL_SMD, CONTENT_TYPE_APP_STARMAIL_SMD },
        { CONTENT_TYPE_STR_APP_STARMATH, CONTENT_TYPE_APP_STARMATH },
        { CONTENT_TYPE_STR_APP_STARWRITER, CONTENT_TYPE_APP_STARWRITER },
        { CONTENT_TYPE_STR_APP_STARWRITER_GLOB, CONTENT_TYPE_APP_STARWRITER_GLOB },
        { CONTENT_TYPE_STR_APP_CDE_CALENDAR_APP, CONTENT_TYPE_APP_CDE_CALENDAR_APP },
        { CONTENT_TYPE_STR_APP_ZIP, CONTENT_TYPE_APP_ZIP },
        { CONTENT_TYPE_STR_AUDIO_AIFF, CONTENT_TYPE_AUDIO_AIFF },
        { CONTENT_TYPE_STR_AUDIO_BASIC, CONTENT_TYPE_AUDIO_BASIC },
        { CONTENT_TYPE_STR_AUDIO_MIDI, CONTENT_TYPE_AUDIO_MIDI },
        { CONTENT_TYPE_STR_AUDIO_VORBIS, CONTENT_TYPE_AUDIO_VORBIS },
        { CONTENT_TYPE_STR_AUDIO_WAV, CONTENT_TYPE_AUDIO_WAV },
        { CONTENT_TYPE_STR_AUDIO_WEBM, CONTENT_TYPE_AUDIO_WEBM },
        { CONTENT_TYPE_STR_IMAGE_GENERIC, CONTENT_TYPE_IMAGE_GENERIC },
        { CONTENT_TYPE_STR_IMAGE_GIF, CONTENT_TYPE_IMAGE_GIF },
        { CONTENT_TYPE_STR_IMAGE_JPEG, CONTENT_TYPE_IMAGE_JPEG },
        { CONTENT_TYPE_STR_IMAGE_PCX, CONTENT_TYPE_IMAGE_PCX },
        { CONTENT_TYPE_STR_IMAGE_PNG, CONTENT_TYPE_IMAGE_PNG },
        { CONTENT_TYPE_STR_IMAGE_TIFF, CONTENT_TYPE_IMAGE_TIFF },
        { CONTENT_TYPE_STR_IMAGE_BMP, CONTENT_TYPE_IMAGE_BMP },
        { CONTENT_TYPE_STR_INET_MSG_RFC822, CONTENT_TYPE_INET_MESSAGE_RFC822 },
        { CONTENT_TYPE_STR_INET_MULTI_ALTERNATIVE, CONTENT_TYPE_INET_MULTIPART_ALTERNATIVE },
        { CONTENT_TYPE_STR_INET_MULTI_DIGEST, CONTENT_TYPE_INET_MULTIPART_DIGEST },
        { CONTENT_TYPE_STR_INET_MULTI_MIXED, CONTENT_TYPE_INET_MULTIPART_MIXED },
        { CONTENT_TYPE_STR_INET_MULTI_PARALLEL, CONTENT_TYPE_INET_MULTIPART_PARALLEL },
        { CONTENT_TYPE_STR_INET_MULTI_RELATED, CONTENT_TYPE_INET_MULTIPART_RELATED },
        { CONTENT_TYPE_STR_TEXT_ICALENDAR, CONTENT_TYPE_TEXT_ICALENDAR },
        { CONTENT_TYPE_STR_TEXT_HTML, CONTENT_TYPE_TEXT_HTML },
        { CONTENT_TYPE_STR_TEXT_PLAIN, CONTENT_TYPE_TEXT_PLAIN },
        { CONTENT_TYPE_STR_TEXT_XMLICALENDAR, CONTENT_TYPE_TEXT_XMLICALENDAR },
        { CONTENT_TYPE_STR_TEXT_URL, CONTENT_TYPE_TEXT_URL },
        { CONTENT_TYPE_STR_TEXT_VCALENDAR, CONTENT_TYPE_TEXT_VCALENDAR },
        { CONTENT_TYPE_STR_TEXT_VCARD, CONTENT_TYPE_TEXT_VCARD },
        { CONTENT_TYPE_STR_VIDEO_MSVIDEO, CONTENT_TYPE_VIDEO_MSVIDEO },
        { CONTENT_TYPE_STR_VIDEO_THEORA, CONTENT_TYPE_VIDEO_THEORA },
        { CONTENT_TYPE_STR_VIDEO_VDO, CONTENT_TYPE_VIDEO_VDO },
        { CONTENT_TYPE_STR_VIDEO_WEBM, CONTENT_TYPE_VIDEO_WEBM },
        { CONTENT_TYPE_STR_X_STARMAIL, CONTENT_TYPE_X_STARMAIL },
        { CONTENT_TYPE_STR_X_VRML, CONTENT_TYPE_X_VRML }
};
 
 
MediaTypeEntry const aStaticExtensionMap[]
    = { { "aif", CONTENT_TYPE_AUDIO_AIFF },
        { "aiff", CONTENT_TYPE_AUDIO_AIFF },
        { "appt", CONTENT_TYPE_APP_CDE_CALENDAR_APP },
        { "au", CONTENT_TYPE_AUDIO_BASIC },
        { "avi", CONTENT_TYPE_VIDEO_MSVIDEO },
        { "bmp", CONTENT_TYPE_IMAGE_BMP },
        { "cgm", CONTENT_TYPE_IMAGE_GENERIC },
        { "doc", CONTENT_TYPE_APP_MSWORD },
        { "dot", CONTENT_TYPE_APP_MSWORD_TEMPL },
        { "dxf", CONTENT_TYPE_IMAGE_GENERIC },
        { "eps", CONTENT_TYPE_IMAGE_GENERIC },
        { "gal", CONTENT_TYPE_APP_GALLERY },
        { "gif", CONTENT_TYPE_IMAGE_GIF },
        { "htm", CONTENT_TYPE_TEXT_HTML },
        { "html", CONTENT_TYPE_TEXT_HTML },
        { "ics", CONTENT_TYPE_TEXT_ICALENDAR },
        { "jar", CONTENT_TYPE_APP_JAR },
        { "jpeg", CONTENT_TYPE_IMAGE_JPEG },
        { "jpg", CONTENT_TYPE_IMAGE_JPEG },
        { "met", CONTENT_TYPE_IMAGE_GENERIC },
        { "mid", CONTENT_TYPE_AUDIO_MIDI },
        { "midi", CONTENT_TYPE_AUDIO_MIDI },
        { "ogg", CONTENT_TYPE_AUDIO_VORBIS },
        { "pbm", CONTENT_TYPE_IMAGE_GENERIC },
        { "pcd", CONTENT_TYPE_IMAGE_GENERIC },
        { "pct", CONTENT_TYPE_IMAGE_GENERIC },
        { "pcx", CONTENT_TYPE_IMAGE_PCX },
        { "pdf", CONTENT_TYPE_APP_PDF },
        { "pgm", CONTENT_TYPE_IMAGE_GENERIC },
        { "png", CONTENT_TYPE_IMAGE_PNG },
        { "pot", CONTENT_TYPE_APP_MSPPOINT_TEMPL },
        { "ppm", CONTENT_TYPE_IMAGE_GENERIC },
        { "ppt", CONTENT_TYPE_APP_MSPPOINT },
        { "psd", CONTENT_TYPE_IMAGE_GENERIC },
        { "ras", CONTENT_TYPE_IMAGE_GENERIC },
        { "rtf", CONTENT_TYPE_APP_RTF },
        { "sda", CONTENT_TYPE_APP_VND_DRAW },
        { "sdc", CONTENT_TYPE_APP_VND_CALC },
        { "sdd", CONTENT_TYPE_APP_VND_IMPRESS },
        { "sdm", CONTENT_TYPE_APP_VND_MAIL },
        { "sdp", CONTENT_TYPE_APP_VND_IMPRESSPACKED },
        { "sds", CONTENT_TYPE_APP_VND_CHART },
        { "sdw", CONTENT_TYPE_APP_VND_WRITER },
        { "sd~", CONTENT_TYPE_X_STARMAIL },
        { "sfs", CONTENT_TYPE_APP_FRAMESET  },
        { "sgl", CONTENT_TYPE_APP_VND_WRITER_GLOBAL  },
        { "sim", CONTENT_TYPE_APP_VND_IMAGE },
        { "smd", CONTENT_TYPE_APP_STARMAIL_SMD }, //CONTENT_TYPE_X_STARMAIL
        { "smf", CONTENT_TYPE_APP_VND_MATH },
        { "svh", CONTENT_TYPE_APP_STARHELP },
        { "svm", CONTENT_TYPE_IMAGE_GENERIC },
        { "sxc", CONTENT_TYPE_APP_VND_SUN_XML_CALC },
        { "sxd", CONTENT_TYPE_APP_VND_SUN_XML_DRAW },
        { "sxg", CONTENT_TYPE_APP_VND_SUN_XML_WRITER_GLOBAL },
        { "sxi", CONTENT_TYPE_APP_VND_SUN_XML_IMPRESS },
        { "sxm", CONTENT_TYPE_APP_VND_SUN_XML_MATH },
        { "sxp", CONTENT_TYPE_APP_VND_SUN_XML_IMPRESSPACKED },
        { "sxs", CONTENT_TYPE_APP_VND_SUN_XML_CHART },
        { "sxw", CONTENT_TYPE_APP_VND_SUN_XML_WRITER },
        { "tga", CONTENT_TYPE_IMAGE_GENERIC },
        { "thm", CONTENT_TYPE_APP_GALLERY_THEME },
        { "tif", CONTENT_TYPE_IMAGE_TIFF },
        { "tiff", CONTENT_TYPE_IMAGE_TIFF },
        { "txt", CONTENT_TYPE_TEXT_PLAIN },
        { "url", CONTENT_TYPE_TEXT_URL },
        { "vcf", CONTENT_TYPE_TEXT_VCARD },
        { "vcs", CONTENT_TYPE_TEXT_VCALENDAR },
        { "vdo", CONTENT_TYPE_VIDEO_VDO },
        { "vor", CONTENT_TYPE_APP_VND_TEMPLATE },
        { "wav", CONTENT_TYPE_AUDIO_WAV },
        { "webm", CONTENT_TYPE_VIDEO_WEBM },
        { "wmf", CONTENT_TYPE_IMAGE_GENERIC },
        { "wrl", CONTENT_TYPE_X_VRML },
        { "xbm", CONTENT_TYPE_IMAGE_GENERIC },
        { "xcs", CONTENT_TYPE_TEXT_XMLICALENDAR },
        { "xls", CONTENT_TYPE_APP_MSEXCEL },
        { "xlt", CONTENT_TYPE_APP_MSEXCEL_TEMPL },
        { "xlw", CONTENT_TYPE_APP_MSEXCEL },
        { "xpm", CONTENT_TYPE_IMAGE_GENERIC },
        { "zip", CONTENT_TYPE_APP_ZIP } };
 
}
 
 
//  seekEntry
 
 
namespace
{
 
MediaTypeEntry const * seekEntry(OUString const & rTypeName,
                                 MediaTypeEntry const * pMap, std::size_t nSize)
{
#if defined DBG_UTIL
    for (std::size_t i = 0; i < nSize - 1; ++i)
        DBG_ASSERT(
            pMap[i].m_pTypeName < pMap[i + 1].m_pTypeName,
            "seekEntry(): Bad map");
#endif
 
    std::size_t nLow = 0;
    std::size_t nHigh = nSize;
    while (nLow != nHigh)
    {
        std::size_t nMiddle = (nLow + nHigh) / 2;
        MediaTypeEntry const * pEntry = pMap + nMiddle;
        sal_Int32 nCmp = rTypeName.compareToIgnoreAsciiCase(pEntry->m_pTypeName);
        if (nCmp < 0)
            nHigh = nMiddle;
        else if (nCmp == 0)
            return pEntry;
 
        else
            nLow = nMiddle + 1;
    }
    return nullptr;
}
 
}
 
// static
INetContentType INetContentTypes::GetContentType(OUString const & rTypeName)
{
    OUString aType;
    OUString aSubType;
    if (parse(rTypeName, aType, aSubType))
    {
        aType += "/" + aSubType;
        MediaTypeEntry const * pEntry = seekEntry(aType, aStaticTypeNameMap,
                                                  CONTENT_TYPE_LAST + 1);
        return pEntry ? pEntry->m_eTypeID : CONTENT_TYPE_UNKNOWN;
    }
    else
        return rTypeName.equalsIgnoreAsciiCase(CONTENT_TYPE_STR_X_STARMAIL) ?
            CONTENT_TYPE_X_STARMAIL : CONTENT_TYPE_UNKNOWN;
            // the content type "x-starmail" has no sub type
}
 
//static
OUString INetContentTypes::GetContentType(INetContentType eTypeID)
{
    static std::array<OUString, CONTENT_TYPE_LAST + 1> aMap = []()
    {
        std::array<OUString, CONTENT_TYPE_LAST + 1> tmp;
        for (std::size_t i = 0; i <= CONTENT_TYPE_LAST; ++i)
            tmp[aStaticTypeNameMap[i].m_eTypeID] = aStaticTypeNameMap[i].m_pTypeName;
        tmp[CONTENT_TYPE_UNKNOWN] = CONTENT_TYPE_STR_APP_OCTSTREAM;
        tmp[CONTENT_TYPE_TEXT_PLAIN] = CONTENT_TYPE_STR_TEXT_PLAIN +
                                        "; charset=iso-8859-1";
        return tmp;
    }();
 
    OUString aTypeName = eTypeID <= CONTENT_TYPE_LAST ? aMap[eTypeID]
                                                      : OUString();
    if (aTypeName.isEmpty())
    {
        OSL_FAIL("INetContentTypes::GetContentType(): Bad ID");
        return CONTENT_TYPE_STR_APP_OCTSTREAM;
    }
    return aTypeName;
}
 
//static
INetContentType INetContentTypes::GetContentType4Extension(OUString const & rExtension)
{
    MediaTypeEntry const * pEntry = seekEntry(rExtension, aStaticExtensionMap,
                                              SAL_N_ELEMENTS(aStaticExtensionMap));
    if (pEntry)
        return pEntry->m_eTypeID;
    return CONTENT_TYPE_APP_OCTSTREAM;
}
 
//static
INetContentType INetContentTypes::GetContentTypeFromURL(std::u16string_view rURL)
{
    INetContentType eTypeID = CONTENT_TYPE_UNKNOWN;
    std::size_t nIdx{ 0 };
    OUString aToken( o3tl::getToken(rURL, u':', nIdx) );
    if (!aToken.isEmpty())
    {
        if (aToken.equalsIgnoreAsciiCase(INETTYPE_URL_PROT_FILE))
            if (rURL[ rURL.size() - 1 ] == '/') // folder
                if (rURL.size() > RTL_CONSTASCII_LENGTH("file:///"))
                    if (WildCard(u"*/{*}/").Matches(rURL)) // special folder
                        eTypeID = CONTENT_TYPE_X_CNT_FSYSSPECIALFOLDER;
                    else
                        // drive? -> "file:///?|/"
                        if (rURL.size() == 11
                            && rURL[ rURL.size() - 2 ] == '|')
                        {
                            // Drives need further processing, because of
                            // dynamic type according to underlying volume,
                            // which cannot be determined here.
                        }
                        else // normal folder
                            eTypeID = CONTENT_TYPE_X_CNT_FSYSFOLDER;
                else // file system root
                    eTypeID = CONTENT_TYPE_X_CNT_FSYSBOX;
            else // file
            {
                //@@@
            }
        else if (aToken.equalsIgnoreAsciiCase(INETTYPE_URL_PROT_HTTP)
                 || aToken.equalsIgnoreAsciiCase(INETTYPE_URL_PROT_HTTPS))
            eTypeID = CONTENT_TYPE_TEXT_HTML;
        else if (aToken.equalsIgnoreAsciiCase(INETTYPE_URL_PROT_PRIVATE))
        {
            aToken = o3tl::getToken(rURL, u'/', nIdx);
            if (aToken == "factory")
            {
                aToken = o3tl::getToken(rURL, u'/', nIdx);
                if (aToken == "swriter")
                {
                    aToken = o3tl::getToken(rURL, u'/', nIdx);
                    eTypeID = aToken == "web" ?
                                  CONTENT_TYPE_APP_VND_WRITER_WEB :
                              aToken == "GlobalDocument" ?
                                  CONTENT_TYPE_APP_VND_WRITER_GLOBAL :
                                  CONTENT_TYPE_APP_VND_WRITER;
                }
                else if (aToken == "scalc")
                    eTypeID = CONTENT_TYPE_APP_VND_CALC;
                else if (aToken == "sdraw")
                    eTypeID = CONTENT_TYPE_APP_VND_DRAW;
                else if (aToken == "simpress")
                    eTypeID = CONTENT_TYPE_APP_VND_IMPRESS;
                else if (aToken == "schart")
                    eTypeID = CONTENT_TYPE_APP_VND_CHART;
                else if (aToken == "simage")
                    eTypeID = CONTENT_TYPE_APP_VND_IMAGE;
                else if (aToken == "smath")
                    eTypeID = CONTENT_TYPE_APP_VND_MATH;
                else if (aToken == "frameset")
                    eTypeID = CONTENT_TYPE_APP_FRAMESET;
            }
            else if (aToken == "helpid")
                eTypeID = CONTENT_TYPE_APP_STARHELP;
        }
        else if (aToken.equalsIgnoreAsciiCase(INETTYPE_URL_PROT_MAILTO))
            eTypeID = CONTENT_TYPE_APP_VND_OUTTRAY;
        else if (aToken.equalsIgnoreAsciiCase(INETTYPE_URL_PROT_MACRO))
            eTypeID = CONTENT_TYPE_APP_MACRO;
        else if (aToken.equalsIgnoreAsciiCase(INETTYPE_URL_PROT_DATA))
        {
            aToken = o3tl::getToken(rURL, u',', nIdx);
            eTypeID = GetContentType(aToken);
        }
    }
    if (eTypeID == CONTENT_TYPE_UNKNOWN)
    {
        OUString aExtension;
        if (GetExtensionFromURL(rURL, aExtension))
            eTypeID = GetContentType4Extension(aExtension);
    }
    return eTypeID;
}
 
//static
bool INetContentTypes::GetExtensionFromURL(std::u16string_view rURL,
                                           OUString & rExtension)
{
    size_t nSlashPos = 0;
    size_t i = 0;
    while (i != std::u16string_view::npos)
    {
        nSlashPos = i;
        i = rURL.find('/', i + 1);
    }
    if (nSlashPos != 0)
    {
        size_t nLastDotPos = i = rURL.find('.', nSlashPos);
        while (i != std::u16string_view::npos)
        {
            nLastDotPos = i;
            i = rURL.find('.', i + 1);
        }
        if (nLastDotPos >- 0)
            rExtension = rURL.substr(nLastDotPos + 1);
        return true;
    }
    return false;
}
 
bool INetContentTypes::parse(
    OUString const & rMediaType, OUString & rType, OUString & rSubType,
    INetContentTypeParameterList * pParameters)
{
    sal_Unicode const * b = rMediaType.getStr();
    sal_Unicode const * e = b + rMediaType.getLength();
    OUString t;
    OUString s;
    INetContentTypeParameterList p;
    if (INetMIME::scanContentType(rMediaType, &t, &s, pParameters == nullptr ? nullptr : &p) == e) {
        rType = t;
        rSubType = s;
        if (pParameters != nullptr) {
            *pParameters = p;
        }
        return true;
    } else {
        return false;
    }
}
 
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */