void trimLWS(std::string& v)
{
std::string::iterator it;
for (it = v.begin(); it != v.end(); ++it) {
if (!isLWS(*it))
break;
}
it = v.erase(v.begin(), it);
if (!v.empty()) {
it = v.end();
for (;;) {
--it;
if (!isLWS(*it))
break;
it = v.erase(it);
}
}
}
void trimQuoted(std::string& v)
{
std::string::iterator it;
for (it = v.begin(); it != v.end(); ++it) {
if (!isLWS(*it))
break;
}
it = v.erase(v.begin(), it);
if (*it == '\'' || *it == '"') {
char quote = *it;
it = v.erase(it);
while (it != v.end()) {
if (*it == quote) {
it = v.erase(it);
v.erase(it, v.end());
break;
} else if (*it == '\\') {
it = v.erase(it);
if (it == v.end())
return;
}
++it;
}
return;
}
if (!v.empty()) {
it = v.end();
for (;;) {
--it;
if (!isLWS(*it))
break;
it = v.erase(it);
}
}
}
static int nextNonWhitespace(const QByteArray &text, int from)
{
// RFC 2616 defines linear whitespace as:
// LWS = [CRLF] 1*( SP | HT )
// We ignore the fact that CRLF must come as a pair at this point
// It's an invalid HTTP header if that happens.
while (from < text.length()) {
if (isLWS(text.at(from)))
++from;
else
return from; // non-whitespace
}
// reached the end
return text.length();
}
// ### move this to qnetworkcookie_p.h and share with qnetworkaccesshttpbackend
static QPair<QByteArray, QByteArray> nextField(const QByteArray &text, int &position, bool isNameValue)
{
// format is one of:
// (1) token
// (2) token = token
// (3) token = quoted-string
int i;
const int length = text.length();
position = nextNonWhitespace(text, position);
// parse the first part, before the equal sign
for (i = position; i < length; ++i) {
register char c = text.at(i);
if (c == ';' || c == ',' || c == '=')
break;
}
QByteArray first = text.mid(position, i - position).trimmed();
position = i;
if (first.isEmpty())
return qMakePair(QByteArray(), QByteArray());
if (i == length || text.at(i) != '=')
// no equal sign, we found format (1)
return qMakePair(first, QByteArray());
QByteArray second;
second.reserve(32); // arbitrary but works for most cases
i = nextNonWhitespace(text, position + 1);
if (i < length && text.at(i) == '"') {
// a quote, we found format (3), where:
// quoted-string = ( <"> *(qdtext | quoted-pair ) <"> )
// qdtext = <any TEXT except <">>
// quoted-pair = "\" CHAR
// If its NAME=VALUE, retain the value as is
// refer to ttp://bugreports.qt.nokia.com/browse/QTBUG-17746
if (isNameValue)
second += '"';
++i;
while (i < length) {
register char c = text.at(i);
if (c == '"') {
// end of quoted text
if (isNameValue)
second += '"';
break;
} else if (c == '\\') {
if (isNameValue)
second += '\\';
++i;
if (i >= length)
// broken line
return qMakePair(QByteArray(), QByteArray());
c = text.at(i);
}
second += c;
++i;
}
for ( ; i < length; ++i) {
register char c = text.at(i);
if (c == ',' || c == ';')
break;
}
position = i;
} else {
// no quote, we found format (2)
position = i;
for ( ; i < length; ++i) {
register char c = text.at(i);
if (c == ',' || c == ';' || isLWS(c))
break;
}
second = text.mid(position, i - position).trimmed();
position = i;
}
if (second.isNull())
second.resize(0); // turns into empty-but-not-null
return qMakePair(first, second);
}
static inline bool isSeparator(register char c)
{
static const char separators[] = "()<>@,;:\\\"/[]?={}";
return isLWS(c) || strchr(separators, c) != 0;
}