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#include <string.h>
#include "DAVProperties.hxx"

using namespace webdav_ucp;

const OUString DAVProperties::CREATIONDATE("DAV:creationdate");
const OUString DAVProperties::DISPLAYNAME("DAV:displayname");
const OUString DAVProperties::GETCONTENTLANGUAGE("DAV:getcontentlanguage");
const OUString DAVProperties::GETCONTENTLENGTH("DAV:getcontentlength");
const OUString DAVProperties::GETCONTENTTYPE("DAV:getcontenttype");
const OUString DAVProperties::GETETAG("DAV:getetag");
const OUString DAVProperties::GETLASTMODIFIED("DAV:getlastmodified");
const OUString DAVProperties::LOCKDISCOVERY("DAV:lockdiscovery");
const OUString DAVProperties::RESOURCETYPE("DAV:resourcetype");
const OUString DAVProperties::SOURCE("DAV:source");
const OUString DAVProperties::SUPPORTEDLOCK("DAV:supportedlock");

const OUString DAVProperties::EXECUTABLE("http://apache.org/dav/props/executable");

void DAVProperties::createNeonPropName( const OUString & rFullName,
                                        NeonPropName & rName )
{
    if ( rFullName.startsWith( "DAV:" ) )
    {
        rName.nspace = "DAV:";
        rName.name
            = strdup( OUStringToOString(
                        rFullName.copy( RTL_CONSTASCII_LENGTH( "DAV:" ) ),
                        RTL_TEXTENCODING_UTF8 ).getStr() );
    }
    else if ( rFullName.startsWith( "http://apache.org/dav/props/" ) )
    {
        rName.nspace = "http://apache.org/dav/props/";
        rName.name
            = strdup( OUStringToOString(
                        rFullName.copy(
                            RTL_CONSTASCII_LENGTH(
                                "http://apache.org/dav/props/" ) ),
                        RTL_TEXTENCODING_UTF8 ).getStr() );
    }
    else if ( rFullName.startsWith( "http://ucb.openoffice.org/dav/props/" ) )
    {
        rName.nspace = "http://ucb.openoffice.org/dav/props/";
        rName.name
            = strdup( OUStringToOString(
                        rFullName.copy(
                            RTL_CONSTASCII_LENGTH(
                                "http://ucb.openoffice.org/dav/props/" ) ),
                        RTL_TEXTENCODING_UTF8 ).getStr() );
    }
    else if ( rFullName.startsWith( "<prop:" ) )
    {
        // Support for 3rd party namespaces/props

        OString aFullName
            = OUStringToOString( rFullName, RTL_TEXTENCODING_UTF8 );

        // Format: <prop:the_propname xmlns:prop="the_namespace">

        sal_Int32 nStart = RTL_CONSTASCII_LENGTH( "<prop:" );
        sal_Int32 nLen = aFullName.indexOf( ' ' ) - nStart;
        rName.name = strdup( aFullName.copy( nStart, nLen ).getStr() );

        nStart = aFullName.indexOf( '=', nStart + nLen ) + 2; // after ="
        nLen = aFullName.getLength() - RTL_CONSTASCII_LENGTH( "\">" ) - nStart;
        rName.nspace = strdup( aFullName.copy( nStart, nLen ).getStr() );
    }
    else
    {
        // Add our namespace to our own properties.
        rName.nspace = "http://ucb.openoffice.org/dav/props/";
        rName.name
            = strdup( OUStringToOString( rFullName,
                                              RTL_TEXTENCODING_UTF8 ).getStr() );
    }
}

void DAVProperties::createUCBPropName( const char * nspace,
                                       const char * name,
                                       OUString & rFullName )
{
    OUString aNameSpace
        = OStringToOUString( nspace, RTL_TEXTENCODING_UTF8 );
    OUString aName
        = OStringToOUString( name,   RTL_TEXTENCODING_UTF8 );

    if ( aNameSpace.isEmpty() )
    {
        // Some servers send XML without proper namespaces. Assume "DAV:"
        // in this case, if name is a well-known dav property name.
        // Although this is not 100% correct, it solves many problems.

        if ( DAVProperties::RESOURCETYPE.matchIgnoreAsciiCase( aName, 4 )  ||
             DAVProperties::SUPPORTEDLOCK.matchIgnoreAsciiCase( aName, 4 ) ||
             DAVProperties::LOCKDISCOVERY.matchIgnoreAsciiCase( aName, 4 ) ||
             DAVProperties::CREATIONDATE.matchIgnoreAsciiCase( aName, 4 ) ||
             DAVProperties::DISPLAYNAME.matchIgnoreAsciiCase( aName, 4 ) ||
             DAVProperties::GETCONTENTLANGUAGE.matchIgnoreAsciiCase( aName, 4 ) ||
             DAVProperties::GETCONTENTLENGTH.matchIgnoreAsciiCase( aName, 4 ) ||
             DAVProperties::GETCONTENTTYPE.matchIgnoreAsciiCase( aName, 4 ) ||
             DAVProperties::GETETAG.matchIgnoreAsciiCase( aName, 4 ) ||
             DAVProperties::GETLASTMODIFIED.matchIgnoreAsciiCase( aName, 4 ) ||
             DAVProperties::SOURCE.matchIgnoreAsciiCase( aName, 4 ) )
            aNameSpace = "DAV:";
    }

    // Note: Concatenating strings BEFORE comparing against known namespaces
    //       is important. See RFC 2815 ( 23.4.2 Meaning of Qualified Names ).
    rFullName  = aNameSpace;
    rFullName += aName;

    if ( rFullName.startsWith( "DAV:" ) )
    {
        // Okay, Just concat strings.
    }
    else if ( rFullName.startsWith( "http://apache.org/dav/props/" ) )
    {
        // Okay, Just concat strings.
    }
    else if ( rFullName.startsWith( "http://ucb.openoffice.org/dav/props/" ) )
    {
        // Remove namespace from our own properties.
        rFullName = rFullName.copy(
                        RTL_CONSTASCII_LENGTH(
                            "http://ucb.openoffice.org/dav/props/" ) );
    }
    else
    {
        // Create property name that encodes, namespace and name ( XML ).
        rFullName  = "<prop:" + aName + " xmlns:prop=\"" + aNameSpace + "\">";
    }
}

bool DAVProperties::isUCBDeadProperty( const NeonPropName & rName )
{
    return ( rName.nspace &&
             ( rtl_str_compareIgnoreAsciiCase(
                 rName.nspace, "http://ucb.openoffice.org/dav/props/" )
               == 0 ) );
}

bool DAVProperties::isUCBSpecialProperty(
    const OUString& rFullName, OUString& rParsedName)
{
    if ( !rFullName.startsWith( "<prop:" ) || !rFullName.endsWith( "\">" ) )
        return false;

    sal_Int32 nStart = strlen( "<prop:" );
    sal_Int32 nEnd = rFullName.indexOf( ' ', nStart );
    if ( nEnd <= nStart ) // incl. -1 for "not found"
        return false;

    OUString sPropName( rFullName.copy( nStart, nEnd - nStart ) );

    // TODO skip whitespaces?
    if ( !rFullName.match( "xmlns:prop=\"", ++nEnd ) )
        return false;

    nStart = nEnd + strlen( "xmlns:prop=\"" );
    nEnd = rFullName.indexOf( '"', nStart );
    if ( nEnd != rFullName.getLength() - sal_Int32( strlen( "\">" ) )
         || nEnd == nStart )
    {
        return false;
    }

    rParsedName = rFullName.copy( nStart, nEnd - nStart );
    if ( !rParsedName.endsWith( "/" ) )
        rParsedName += "/";
    rParsedName += sPropName;

    return rParsedName.getLength();
}

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