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/*
* Copyright (c) 2010 Remko Tronçon
* Licensed under the GNU General Public License v3.
* See Documentation/Licenses/GPLv3.txt for more information.
*/
#include "Swiften/SASL/DIGESTMD5Properties.h"
namespace Swift {
namespace {
bool insideQuotes(const ByteArray& v) {
if (v.getSize() == 0) {
return false;
}
else if (v.getSize() == 1) {
return v[0] == '"';
}
else if (v[0] == '"') {
return v[v.getSize() - 1] != '"';
}
else {
return false;
}
}
ByteArray stripQuotes(const ByteArray& v) {
const char* data = v.getData();
size_t size = v.getSize();
if (v[0] == '"') {
data++;
size--;
}
if (v[v.getSize() - 1] == '"') {
size--;
}
return ByteArray(data, size);
}
}
DIGESTMD5Properties::DIGESTMD5Properties() {
}
DIGESTMD5Properties DIGESTMD5Properties::parse(const ByteArray& data) {
DIGESTMD5Properties result;
bool inKey = true;
ByteArray currentKey;
ByteArray currentValue;
for (size_t i = 0; i < data.getSize(); ++i) {
char c = data[i];
if (inKey) {
if (c == '=') {
inKey = false;
}
else {
currentKey += c;
}
}
else {
if (c == ',' && !insideQuotes(currentValue)) {
String key = currentKey.toString();
if (isQuoted(key)) {
result.setValue(key, stripQuotes(currentValue).toString());
}
else {
result.setValue(key, currentValue.toString());
}
inKey = true;
currentKey = ByteArray();
currentValue = ByteArray();
}
else {
currentValue += c;
}
}
}
if (!currentKey.isEmpty()) {
String key = currentKey.toString();
if (isQuoted(key)) {
result.setValue(key, stripQuotes(currentValue).toString());
}
else {
result.setValue(key, currentValue.toString());
}
}
return result;
}
ByteArray DIGESTMD5Properties::serialize() const {
ByteArray result;
for(DIGESTMD5PropertiesMap::const_iterator i = properties.begin(); i != properties.end(); ++i) {
if (i != properties.begin()) {
result += ',';
}
result += i->first;
result += '=';
if (isQuoted(i->first)) {
result += "\"" + i->second + "\"";
}
else {
result += i->second;
}
}
return result;
}
boost::optional<String> DIGESTMD5Properties::getValue(const String& key) const {
DIGESTMD5PropertiesMap::const_iterator i = properties.find(key);
if (i != properties.end()) {
return i->second.toString();
}
else {
return boost::optional<String>();
}
}
void DIGESTMD5Properties::setValue(const String& key, const String& value) {
properties.insert(DIGESTMD5PropertiesMap::value_type(key, ByteArray(value)));
}
bool DIGESTMD5Properties::isQuoted(const String& p) {
return p == "authzid" || p == "cnonce" || p == "digest-uri" || p == "nonce" || p == "realm" || p == "username";
}
}
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