/** Constructor. Parses <b>status</b> for router status information. The given
* string should match the router status entry format from Tor's dir-spec.txt.
* The currently recognized lines are:
*
* "r" SP nickname SP identity SP digest SP publication SP IP SP ORPort
* SP DirPort NL
* "s" SP Flags NL
*
* Unrecognized lines are currently ignored.
*
* */
RouterStatus::RouterStatus(const QStringList &status)
{
bool ok;
_valid = false;
_flags = 0;
_bandwidth = 0;
foreach (QString line, status) {
if (line.startsWith("r ")) {
QStringList parts = line.split(" ", QString::SkipEmptyParts);
if (parts.size() < 9)
return;
/* Nickname */
_name = parts.at(1);
/* Identity key digest */
_id = base16_encode(QByteArray::fromBase64(parts.at(2).toAscii()));
if (_id.isEmpty())
return;
/* Most recent descriptor digest */
_digest = base16_encode(QByteArray::fromBase64(parts.at(3).toAscii()));
if (_digest.isEmpty())
return;
/* Most recent publication date */
_published = QDateTime::fromString(parts.at(4) + " " + parts.at(5),
TIME_FORMAT);
if (!_published.isValid())
return;
/* IP address */
_ipAddress = QHostAddress(parts.at(6));
if (_ipAddress.isNull())
return;
/* ORPort */
_orPort = parts.at(7).toUInt(&ok);
if (!ok)
return;
/* DirPort */
_dirPort = parts.at(8).toUInt(&ok);
if (!ok)
return;
_valid = true;
} else if (line.startsWith("s ")) {
/* Status flags */
QStringList flags = line.split(" ", QString::SkipEmptyParts);
flags.removeFirst(); /* Remove the "s" */
foreach (QString flag, flags) {
_flags |= flagValue(flag);
}
} else if (line.startsWith("w ")) {
void GTTParser::parseHeaderLine(const std::string& line) {
const char *l = line.c_str();
int i = 0, iValue = 0;
BOOST_ASSERT(line.length() != 0);
// Read flag name
if (!isalpha(l[i]))
throw ParserException("GTTParser", "flag_name should begin with [a-zA-Z] or we should add newline to end the header");
i++;
while (l[i] != ':') {
if (!(isalnum(l[i]) || (l[i] == '_') || (l[i] == '-')))
throw ParserException("GTTParser", "flag name should continue with [A-Za-z0-9-_]* or end with a space");
i++;
}
std::string flagName(l, i);
i++;
// Skip spaces
while (l[i] == ' ')
i++;
if (l[i] == 0)
throw ParserException("GTTParser", "flag without value");
// Read value
iValue = i;
while (l[i] != 0) {
if (!(l[i] >= 32 && l[i] < 126))
throw ParserException("GTTParser", "flag_value should consist of printable characters or just end with CRLF");
i++;
}
std::string flagValue(l + iValue, i - iValue);
// Content length
if (!strcasecmp(flagName.c_str(), "content-length")) {
if (currentPkt->size > 0)
throw ParserException("GTTParser", "content-length flag has already appeared");
currentPkt->size = String::toInt(flagValue.c_str());
if (currentPkt->size <= 0)
throw ParserException("GTTParser", "not valid body size, body size should be a positive integer");
} else {
currentPkt->headers[flagName] = flagValue;
}
}
