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/*
* Copyright (C) 2013 - 2014 Jolla Ltd.
* Copyright (C) 2019 - 2020 Open Mobile Platform LLC.
*
* You may use this file under the terms of the BSD license as follows:
*
* "Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Nemo Mobile nor the names of its contributors
* may be used to endorse or promote products derived from this
* software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
*/
#ifndef QTCONTACTS_EXTENSIONS_IMPL_H
#define QTCONTACTS_EXTENSIONS_IMPL_H
#include <qtcontacts-extensions.h>
#include <QDebug>
namespace {
QString normalize(const QString &input, int flags, int maxCharacters)
{
// Allow '[' and ']' even though RFC3966 doesn't.
// Also, even though RFC3966 explicitly disallows dialstring characters
// such as DTMF pause etc, support those as per RFC2806 in order
// to enable ITU-T V.250 style dialstring sequences.
// Finally, convert ',' and ';' to 'p' and 'w' respectively for
// consistency with defacto industry standards.
static const QString allowedSeparators(QString::fromLatin1(" .-()[]"));
static const QString dtmfChars(QString::fromLatin1("pPwWxX,;#*"));
static const QString sipScheme(QString::fromLatin1("sips:"));
static const QString hashControl(QString::fromLatin1("#31#"));
static const QString starControl(QString::fromLatin1("*31#"));
static const QChar plus(QChar::fromLatin1('+'));
static const QChar colon(QChar::fromLatin1(':'));
static const QChar at(QChar::fromLatin1('@'));
// If this is a SIP URI (empty scheme means 'sips'), validate the identifier part
QString number(input);
if (number.startsWith(sipScheme) || number.startsWith(colon)) {
int colonIndex = number.indexOf(colon);
int atIndex = number.indexOf(at, colonIndex + 1);
if (atIndex != -1) {
number = number.mid(colonIndex + 1, (atIndex - colonIndex - 1));
}
}
QString subset;
subset.reserve(number.length());
QChar initialChar;
bool numericComponent = false;
int firstDtmfIndex = -1;
QString::const_iterator it = number.constBegin(), end = number.constEnd();
for ( ; it != end; ++it) {
if ((*it).isDigit()) {
// Convert to ASCII, capturing unicode digit values
const QChar digit(QChar::fromLatin1('0' + (*it).digitValue()));
subset.append(digit);
numericComponent = true;
if (initialChar.isNull()) {
initialChar = digit;
}
} else if (*it == plus) {
if (initialChar.isNull()) {
// This is the start of the diallable number
subset.append(*it);
initialChar = *it;
} else if (firstDtmfIndex != -1) {
// Allow inside the DMTF section
subset.append(*it);
} else if (flags & QtContactsSqliteExtensions::ValidatePhoneNumber) {
// Not valid in this location
return QString();
}
} else if (allowedSeparators.contains(*it)) {
if (flags & QtContactsSqliteExtensions::KeepPhoneNumberPunctuation) {
subset.append(*it);
}
} else if (dtmfChars.contains(*it)) {
if ((*it).isLetter() && !numericComponent) {
// Alphabetic DTMF chars can only occur after some numeric component
if (flags & QtContactsSqliteExtensions::ValidatePhoneNumber) {
return QString();
} else {
// Skip this character, not valid in this position
}
} else {
if ((flags & QtContactsSqliteExtensions::KeepPhoneNumberDialString) == 0) {
// No need to continue accumulating
if (flags & QtContactsSqliteExtensions::ValidatePhoneNumber) {
// Ensure the remaining characters are permissible
while (++it != end) {
if ((!(*it).isDigit()) && !allowedSeparators.contains(*it) && !dtmfChars.contains(*it)) {
// Invalid character
return QString();
}
}
}
break;
}
// Otherwise, continue with processing
if (firstDtmfIndex == -1) {
firstDtmfIndex = subset.length();
}
if ((*it).toLower() == QChar::fromLatin1('x')) {
// Accept 'x' and 'X', but convert them to 'p' in the normalized form
subset.append(QChar::fromLatin1('p'));
} else if (*it == QChar::fromLatin1(',')) {
// Accept ',' but convert to 'p' in the normalized form
subset.append(QChar::fromLatin1('p'));
} else if (*it == QChar::fromLatin1(';')) {
// Accept ';' but convert to 'w' in the normalized form
subset.append(QChar::fromLatin1('w'));
} else {
subset.append(*it);
}
}
} else if (flags & QtContactsSqliteExtensions::ValidatePhoneNumber) {
// Invalid character
return QString();
}
}
if ((flags & QtContactsSqliteExtensions::ValidatePhoneNumber) &&
(initialChar == plus) && (firstDtmfIndex != -1)) {
// If this number starts with '+', it mustn't contain control codes
if ((subset.indexOf(hashControl, firstDtmfIndex) != -1) ||
(subset.indexOf(starControl, firstDtmfIndex) != -1)) {
return QString();
}
}
if (maxCharacters != -1) {
int characters = 0;
int index = (firstDtmfIndex == -1) ? (subset.length() - 1) : (firstDtmfIndex - 1);
for ( ; index > 0; --index) {
const QChar &c(subset.at(index));
if (c.isDigit() || c == plus) {
if (++characters == maxCharacters) {
// Only include the digits from here
subset = subset.mid(index);
break;
}
}
}
}
return subset.trimmed();
}
}
namespace QtContactsSqliteExtensions {
QContactCollectionId aggregateCollectionId(const QString &managerUri)
{
return QContactCollectionId(managerUri, QByteArrayLiteral("col-") + QByteArray::number(1));
}
QContactCollectionId localCollectionId(const QString &managerUri)
{
return QContactCollectionId(managerUri, QByteArrayLiteral("col-") + QByteArray::number(2));
}
QContactId apiContactId(quint32 iid, const QString &managerUri)
{
return QContactId(managerUri, QByteArrayLiteral("sql-") + QByteArray::number(iid));
}
quint32 internalContactId(const QContactId &id)
{
const QByteArray localId = id.localId();
if (localId.startsWith(QByteArrayLiteral("sql-"))) {
return localId.mid(4).toUInt();
}
return 0;
}
QString normalizePhoneNumber(const QString &input, NormalizePhoneNumberFlags flags)
{
return normalize(input, flags, -1);
}
QString minimizePhoneNumber(const QString &input, int maxCharacters)
{
// Minimal form number should preserve DTMF dial string to differentiate PABX extensions
return normalize(input, KeepPhoneNumberDialString, maxCharacters);
}
}
#endif
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