CWE-ou-minkata/Sources/Plasma/NucleusLib/pnUtils/pnUtPath.cpp

/*==LICENSE==*

CyanWorlds.com Engine - MMOG client, server and tools
Copyright (C) 2011  Cyan Worlds, Inc.

This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
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(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program.  If not, see <http://www.gnu.org/licenses/>.

Additional permissions under GNU GPL version 3 section 7

If you modify this Program, or any covered work, by linking or
combining it with any of RAD Game Tools Bink SDK, Autodesk 3ds Max SDK,
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containing parts covered by the terms of the Bink SDK EULA, 3ds Max EULA,
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 or by snail mail at:
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*==LICENSE==*/
/*****************************************************************************
*
*   $/Plasma20/Sources/Plasma/NucleusLib/pnUtils/Private/pnUtPath.cpp
*   
***/

#include "pnUtPath.h"
#include "pnUtStr.h"


/****************************************************************************
*
*   Exported functions
*
***/

//===========================================================================
void PathGetProgramDirectory (
    wchar_t       *dst,
    unsigned     dstChars
) {
    ASSERT(dst);
    ASSERT(dstChars);

    PathGetProgramName(dst, dstChars);
    PathRemoveFilename(dst, dst, dstChars);
}

//===========================================================================
void PathAddFilename (
    wchar_t       *dst, 
    const wchar_t  src[], 
    const wchar_t  fname[],
    unsigned     dstChars
) {
    ASSERT(dst);
    ASSERT(dstChars);

    wchar_t temp[MAX_PATH];
    if (dst == src) {
        StrCopy(temp, src, arrsize(temp));
        src = temp;
    }
    else if (dst == fname) {
        StrCopy(temp, fname, arrsize(temp));
        fname = temp;
    }

    PathMakePath(dst, dstChars, 0, src, fname, 0);
}

//===========================================================================
void PathRemoveFilename (
    wchar_t       *dst, 
    const wchar_t  src[], 
    unsigned     dstChars
) {
    ASSERT(dst);
    ASSERT(src);
    ASSERT(dstChars);

    wchar_t drive[MAX_DRIVE];
    wchar_t dir[MAX_DIR];
    PathSplitPath(src, drive, dir, 0, 0);
    PathMakePath(dst, dstChars, drive, dir, 0, 0);
}

/*****************************************************************************
*
*   Email formatting functions
*
***/

//============================================================================
void PathSplitEmail (
    const wchar_t emailAddr[],
    wchar_t *     user,
    unsigned    userChars,
    wchar_t *     domain,
    unsigned    domainChars,
    wchar_t *     tld,
    unsigned    tldChars,
    wchar_t *     subDomains,
    unsigned    subDomainChars,
    unsigned    subDomainCount
) {
    ASSERT(emailAddr);
    
    #define SUB_DOMAIN(i) subDomains[(i) * subDomainChars]

    // null-terminate all output parameters
    if (userChars) {
        ASSERT(user);
        user[0] = 0;
    }
    if (domainChars) {
        ASSERT(domain);
        domain[0] = 0;
    }
    if (tldChars) {
        ASSERT(tld);
        tld[0] = 0;
    }
    if (subDomainChars || subDomainCount) {
        ASSERT(subDomains);
        for (unsigned i = 0; i < subDomainCount; ++i)
            SUB_DOMAIN(i) = 0;
    }

    // bail now if email address is zero-length
    unsigned len = StrLen(emailAddr);
    if (!len)
        return;

    // copy email address so we can tokenize it
    wchar_t * tmp = (wchar_t*)malloc(sizeof(wchar_t) * (len + 1));
    StrCopy(tmp, emailAddr, len + 1);
    const wchar_t * work = tmp;

    // parse user   
    wchar_t token[MAX_PATH];
    if (!StrTokenize(&work, token, arrsize(token), L"@"))
        return;

    // copy user to output parameter
    if (userChars)
        StrCopy(user, token, userChars);

    // skip past the '@' symbol
    if (!*work++)
        return;
    
    // parse all domains
    ARRAY(wchar_t *) arr;
    while (StrTokenize(&work, token, arrsize(token), L".")) {
        unsigned toklen = StrLen(token);
        wchar_t * str = (wchar_t*)malloc(sizeof(wchar_t) * (toklen + 1));
        StrCopy(str, token, toklen + 1);
        arr.Add(str);

        free(str);
    }

    // copy domains to output parameters
    unsigned index = 0;
    if (arr.Count() > 2) {
        // all domains except for the last two are sub-domains
        for (index = 0; index < arr.Count() - 2; ++index) {
            if (index < subDomainCount)
                if (subDomains)
                    StrCopy(&SUB_DOMAIN(index), arr[index], subDomainChars);
        }
    }
    if (arr.Count() > 1) {
        // second to last domain is the primary domain
        if (domain)
            StrCopy(domain, arr[index], domainChars);
        // last comes the top level domain
        ++index;
        if (tld)
            StrCopy(tld, arr[index], tldChars);
    }
    else if (arr.Count() == 1) {
        // if only one domain, return it as a sub-domain
        if (index < subDomainCount)
            if (subDomains)
                StrCopy(&SUB_DOMAIN(index), arr[index], subDomainChars);
    }

    free(tmp);
    
    #undef SUB_DOMAIN
}