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tdepim/certmanager/lib/kleo/dn.cpp

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/*
dn.cpp
This file is part of libkleopatra, the KDE keymanagement library
Copyright (c) 2004 Klarälvdalens Datakonsult AB
DN parsing:
Copyright (c) 2002 g10 Code GmbH
Copyright (c) 2004 Klarälvdalens Datakonsult AB
Libkleopatra is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version.
Libkleopatra 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, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
In addition, as a special exception, the copyright holders give
permission to link the code of this program with any edition of
the TQt library by Trolltech AS, Norway (or with modified versions
of TQt that use the same license as TQt), and distribute linked
combinations including the two. You must obey the GNU General
Public License in all respects for all of the code used other than
TQt. If you modify this file, you may extend this exception to
your version of the file, but you are not obligated to do so. If
you do not wish to do so, delete this exception statement from
your version.
*/
#include "dn.h"
#include "oidmap.h"
#include "ui/dnattributeorderconfigwidget.h"
#include <tdeapplication.h>
#include <tdeconfig.h>
#include <tdelocale.h>
#include <tqstringlist.h>
#include <tqvaluevector.h>
#include <iostream>
#include <iterator>
#include <algorithm>
#include <map>
#include <string.h>
#include <ctype.h>
#include <stdlib.h>
struct Kleo::DN::Private {
Private() : mRefCount( 0 ) {}
Private( const Private & other )
: attributes( other.attributes ),
reorderedAttributes( other.reorderedAttributes ),
mRefCount( 0 )
{
}
int ref() {
return ++mRefCount;
}
int unref() {
if ( --mRefCount <= 0 ) {
delete this;
return 0;
} else
return mRefCount;
}
int refCount() const { return mRefCount; }
DN::Attribute::List attributes;
DN::Attribute::List reorderedAttributes;
private:
int mRefCount;
};
namespace {
struct DnPair {
char * key;
char * value;
};
}
// copied from CryptPlug and adapted to work on DN::Attribute::List:
#define digitp(p) (*(p) >= '0' && *(p) <= '9')
#define hexdigitp(a) (digitp (a) \
|| (*(a) >= 'A' && *(a) <= 'F') \
|| (*(a) >= 'a' && *(a) <= 'f'))
#define xtoi_1(p) (*(p) <= '9'? (*(p)- '0'): \
*(p) <= 'F'? (*(p)-'A'+10):(*(p)-'a'+10))
#define xtoi_2(p) ((xtoi_1(p) * 16) + xtoi_1((p)+1))
static char *
trim_trailing_spaces( char *string )
{
char *p, *mark;
for( mark = NULL, p = string; *p; p++ ) {
if( isspace( *p ) ) {
if( !mark )
mark = p;
}
else
mark = NULL;
}
if( mark )
*mark = '\0' ;
return string ;
}
/* Parse a DN and return an array-ized one. This is not a validating
parser and it does not support any old-stylish syntax; gpgme is
expected to return only rfc2253 compatible strings. */
static const unsigned char *
parse_dn_part (DnPair *array, const unsigned char *string)
{
const unsigned char *s, *s1;
size_t n;
char *p;
/* parse attributeType */
for (s = string+1; *s && *s != '='; s++)
;
if (!*s)
return NULL; /* error */
n = s - string;
if (!n)
return NULL; /* empty key */
p = (char*)malloc (n+1);
memcpy (p, string, n);
p[n] = 0;
trim_trailing_spaces ((char*)p);
// map OIDs to their names:
for ( unsigned int i = 0 ; i < numOidMaps ; ++i )
if ( !strcasecmp ((char*)p, oidmap[i].oid) ) {
free( p );
p = strdup( oidmap[i].name );
break;
}
array->key = p;
string = s + 1;
if (*string == '#')
{ /* hexstring */
string++;
for (s=string; hexdigitp (s); s++)
s++;
n = s - string;
if (!n || (n & 1))
return NULL; /* empty or odd number of digits */
n /= 2;
array->value = p = (char*)malloc (n+1);
for (s1=string; n; s1 += 2, n--)
*p++ = xtoi_2 (s1);
*p = 0;
}
else
{ /* regular v3 quoted string */
for (n=0, s=string; *s; s++)
{
if (*s == '\\')
{ /* pair */
s++;
if (*s == ',' || *s == '=' || *s == '+'
|| *s == '<' || *s == '>' || *s == '#' || *s == ';'
|| *s == '\\' || *s == '\"' || *s == ' ')
n++;
else if (hexdigitp (s) && hexdigitp (s+1))
{
s++;
n++;
}
else
return NULL; /* invalid escape sequence */
}
else if (*s == '\"')
return NULL; /* invalid encoding */
else if (*s == ',' || *s == '=' || *s == '+'
|| *s == '<' || *s == '>' || *s == '#' || *s == ';' )
break;
else
n++;
}
array->value = p = (char*)malloc (n+1);
for (s=string; n; s++, n--)
{
if (*s == '\\')
{
s++;
if (hexdigitp (s))
{
*p++ = xtoi_2 (s);
s++;
}
else
*p++ = *s;
}
else
*p++ = *s;
}
*p = 0;
}
return s;
}
/* Parse a DN and return an array-ized one. This is not a validating
parser and it does not support any old-stylish syntax; gpgme is
expected to return only rfc2253 compatible strings. */
static Kleo::DN::Attribute::List
parse_dn( const unsigned char * string ) {
if ( !string )
return TQValueVector<Kleo::DN::Attribute>();
TQValueVector<Kleo::DN::Attribute> result;
while (*string)
{
while (*string == ' ')
string++;
if (!*string)
break; /* ready */
DnPair pair = { 0, 0 };
string = parse_dn_part (&pair, string);
if (!string)
goto failure;
if ( pair.key && pair.value )
result.push_back( Kleo::DN::Attribute( TQString::fromUtf8( pair.key ),
TQString::fromUtf8( pair.value ) ) );
free( pair.key );
free( pair.value );
while (*string == ' ')
string++;
if (*string && *string != ',' && *string != ';' && *string != '+')
goto failure; /* invalid delimiter */
if (*string)
string++;
}
return result;
failure:
return TQValueVector<Kleo::DN::Attribute>();
}
static TQValueVector<Kleo::DN::Attribute>
parse_dn( const TQString & dn ) {
return parse_dn( (const unsigned char*)dn.utf8().data() );
}
static TQString dn_escape( const TQString & s ) {
TQString result;
for ( unsigned int i = 0, end = s.length() ; i != end ; ++i ) {
const TQChar ch = s[i];
switch ( ch.unicode() ) {
case ',':
case '+':
case '"':
case '\\':
case '<':
case '>':
case ';':
result += '\\';
// fall through
default:
result += ch;
}
}
return result;
}
static TQString
serialise( const TQValueVector<Kleo::DN::Attribute> & dn ) {
TQStringList result;
for ( TQValueVector<Kleo::DN::Attribute>::const_iterator it = dn.begin() ; it != dn.end() ; ++it )
if ( !(*it).name().isEmpty() && !(*it).value().isEmpty() )
result.push_back( (*it).name().stripWhiteSpace() + '=' + dn_escape( (*it).value().stripWhiteSpace() ) );
return result.join( "," );
}
static Kleo::DN::Attribute::List
reorder_dn( const Kleo::DN::Attribute::List & dn ) {
const TQStringList & attrOrder = Kleo::DNAttributeMapper::instance()->attributeOrder();
Kleo::DN::Attribute::List unknownEntries;
Kleo::DN::Attribute::List result;
unknownEntries.reserve( dn.size() );
result.reserve( dn.size() );
// find all unknown entries in their order of appearance
for ( Kleo::DN::const_iterator it = dn.begin(); it != dn.end(); ++it )
if ( attrOrder.find( (*it).name() ) == attrOrder.end() )
unknownEntries.push_back( *it );
// process the known attrs in the desired order
for ( TQStringList::const_iterator oit = attrOrder.begin() ; oit != attrOrder.end() ; ++oit )
if ( *oit == "_X_" ) {
// insert the unknown attrs
std::copy( unknownEntries.begin(), unknownEntries.end(),
std::back_inserter( result ) );
unknownEntries.clear(); // don't produce dup's
} else {
for ( Kleo::DN::const_iterator dnit = dn.begin() ; dnit != dn.end() ; ++dnit )
if ( (*dnit).name() == *oit )
result.push_back( *dnit );
}
return result;
}
//
//
// class DN
//
//
Kleo::DN::DN() {
d = new Private();
d->ref();
}
Kleo::DN::DN( const TQString & dn ) {
d = new Private();
d->ref();
d->attributes = parse_dn( dn );
}
Kleo::DN::DN( const char * utf8DN ) {
d = new Private();
d->ref();
if ( utf8DN )
d->attributes = parse_dn( (const unsigned char*)utf8DN );
}
Kleo::DN::DN( const DN & other )
: d( other.d )
{
if ( d ) d->ref();
}
Kleo::DN::~DN() {
if ( d ) d->unref();
}
const Kleo::DN & Kleo::DN::operator=( const DN & that ) {
if ( this->d == that.d )
return *this;
if ( that.d )
that.d->ref();
if ( this->d )
this->d->unref();
this->d = that.d;
return *this;
}
TQString Kleo::DN::prettyDN() const {
if ( !d )
return TQString();
if ( d->reorderedAttributes.empty() )
d->reorderedAttributes = reorder_dn( d->attributes );
return serialise( d->reorderedAttributes );
}
TQString Kleo::DN::dn() const {
return d ? serialise( d->attributes ) : TQString() ;
}
// static
TQString Kleo::DN::escape( const TQString & value ) {
return dn_escape( value );
}
void Kleo::DN::detach() {
if ( !d ) {
d = new Kleo::DN::Private();
d->ref();
} else if ( d->refCount() > 1 ) {
Kleo::DN::Private * d_save = d;
d = new Kleo::DN::Private( *d );
d->ref();
d_save->unref();
}
}
void Kleo::DN::append( const Attribute & attr ) {
detach();
d->attributes.push_back( attr );
d->reorderedAttributes.clear();
}
TQString Kleo::DN::operator[]( const TQString & attr ) const {
if ( !d )
return TQString();
const TQString attrUpper = attr.upper();
for ( TQValueVector<Attribute>::const_iterator it = d->attributes.begin() ;
it != d->attributes.end() ; ++it )
if ( (*it).name() == attrUpper )
return (*it).value();
return TQString();
}
static TQValueVector<Kleo::DN::Attribute> empty;
Kleo::DN::const_iterator Kleo::DN::begin() const {
return d ? d->attributes.begin() : empty.begin() ;
}
Kleo::DN::const_iterator Kleo::DN::end() const {
return d ? d->attributes.end() : empty.end() ;
}
/////////////////////
namespace {
struct ltstr {
bool operator()( const char * s1, const char * s2 ) const {
return qstrcmp( s1, s2 ) < 0 ;
}
};
}
static const char * defaultOrder[] = {
"CN", "L", "_X_", "OU", "O", "C"
};
std::pair<const char*,const char*> attributeLabels[] = {
#define MAKE_PAIR(x,y) std::pair<const char*,const char*>( x, y )
MAKE_PAIR( "CN", I18N_NOOP("Common name") ),
MAKE_PAIR( "SN", I18N_NOOP("Surname") ),
MAKE_PAIR( "GN", I18N_NOOP("Given name") ),
MAKE_PAIR( "L", I18N_NOOP("Location") ),
MAKE_PAIR( "T", I18N_NOOP("Title") ),
MAKE_PAIR( "OU", I18N_NOOP("Organizational unit") ),
MAKE_PAIR( "O", I18N_NOOP("Organization") ),
MAKE_PAIR( "PC", I18N_NOOP("Postal code") ),
MAKE_PAIR( "C", I18N_NOOP("Country code") ),
MAKE_PAIR( "SP", I18N_NOOP("State or province") ),
MAKE_PAIR( "DC", I18N_NOOP("Domain component") ),
MAKE_PAIR( "BC", I18N_NOOP("Business category") ),
MAKE_PAIR( "EMAIL", I18N_NOOP("Email address") ),
MAKE_PAIR( "MAIL", I18N_NOOP("Mail address") ),
MAKE_PAIR( "MOBILE", I18N_NOOP("Mobile phone number") ),
MAKE_PAIR( "TEL", I18N_NOOP("Telephone number") ),
MAKE_PAIR( "FAX", I18N_NOOP("Fax number") ),
MAKE_PAIR( "STREET", I18N_NOOP("Street address") ),
MAKE_PAIR( "UID", I18N_NOOP("Unique ID") )
#undef MAKE_PAIR
};
static const unsigned int numAttributeLabels = sizeof attributeLabels / sizeof *attributeLabels ;
class Kleo::DNAttributeMapper::Private {
public:
Private();
std::map<const char*,const char*,ltstr> map;
TQStringList attributeOrder;
};
Kleo::DNAttributeMapper::Private::Private()
: map( attributeLabels, attributeLabels + numAttributeLabels ) {}
Kleo::DNAttributeMapper::DNAttributeMapper() {
d = new Private();
const TDEConfigGroup config( kapp->config(), "DN" );
d->attributeOrder = config.readListEntry( "AttributeOrder" );
if ( d->attributeOrder.empty() )
std::copy( defaultOrder, defaultOrder + sizeof defaultOrder / sizeof *defaultOrder,
std::back_inserter( d->attributeOrder ) );
mSelf = this;
}
Kleo::DNAttributeMapper::~DNAttributeMapper() {
mSelf = 0;
delete d; d = 0;
}
Kleo::DNAttributeMapper * Kleo::DNAttributeMapper::mSelf = 0;
const Kleo::DNAttributeMapper * Kleo::DNAttributeMapper::instance() {
if ( !mSelf )
(void)new DNAttributeMapper();
return mSelf;
}
TQString Kleo::DNAttributeMapper::name2label( const TQString & s ) const {
const std::map<const char*,const char*,ltstr>::const_iterator it
= d->map.find( s.stripWhiteSpace().upper().latin1() );
if ( it == d->map.end() )
return TQString();
return i18n( it->second );
}
TQStringList Kleo::DNAttributeMapper::names() const {
TQStringList result;
for ( std::map<const char*,const char*,ltstr>::const_iterator it = d->map.begin() ; it != d->map.end() ; ++it )
result.push_back( it->first );
return result;
}
const TQStringList & Kleo::DNAttributeMapper::attributeOrder() const {
return d->attributeOrder;
}
void Kleo::DNAttributeMapper::setAttributeOrder( const TQStringList & order ) {
d->attributeOrder = order;
if ( order.empty() )
std::copy( defaultOrder, defaultOrder + sizeof defaultOrder / sizeof *defaultOrder,
std::back_inserter( d->attributeOrder ) );
TDEConfigGroup config( kapp->config(), "DN" );
config.writeEntry( "AttributeOrder", order );
}
Kleo::DNAttributeOrderConfigWidget * Kleo::DNAttributeMapper::configWidget( TQWidget * parent, const char * name ) const {
return new DNAttributeOrderConfigWidget( mSelf, parent, name );
}
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