+void Video::parseJsPlayer(QByteArray bytes) {
+ QString js = QString::fromUtf8(bytes);
+ QRegExp funcNameRe("signature=([a-zA-Z0-9]+)");
+ if (funcNameRe.indexIn(js) == -1) {
+ qWarning() << "Cannot capture signature function name";
+ } else {
+ sigFuncName = funcNameRe.cap(1);
+ captureFunction(sigFuncName, js);
+ // qDebug() << sigFunctions;
+ }
+ parseFmtUrlMap(fmtUrlMap, true);
+}
+
+void Video::captureFunction(const QString &name, const QString &js) {
+ QRegExp funcRe("function\\s+" + name + "\\s*\\([a-zA-Z0-9,\\s]*\\)\\s*\\{[^\\}]+\\}");
+ if (funcRe.indexIn(js) == -1) {
+ qWarning() << "Cannot capture function" << name;
+ return;
+ }
+ QString func = funcRe.cap(0);
+ sigFunctions.insert(name, func);
+
+ // capture inner functions
+ QRegExp invokedFuncRe("[\\s=;\\(]([a-zA-Z0-9]+)\\s*\\([a-zA-Z0-9, ]+\\)");
+ int pos = name.length() + 9;
+ while ((pos = invokedFuncRe.indexIn(func, pos)) != -1) {
+ QString funcName = invokedFuncRe.cap(1);
+ if (!sigFunctions.contains(funcName))
+ captureFunction(funcName, js);
+ pos += invokedFuncRe.matchedLength();
+ }
+}
+
+QString Video::decryptSignature(const QString &s) {
+ if (sigFuncName.isEmpty()) return QString();
+ QScriptEngine engine;
+ foreach (QString f, sigFunctions.values()) {
+ QScriptValue value = engine.evaluate(f);
+ if (value.isError())
+ qWarning() << "Error in" << f << value.toString();
+ }
+ QString js = sigFuncName + "('" + s + "');";
+ QScriptValue value = engine.evaluate(js);
+ if (value.isUndefined()) {
+ qWarning() << "Undefined result for" << js;
+ return QString();
+ }
+ if (value.isError()) {
+ qWarning() << "Error in" << js << value.toString();
+ return QString();
+ }
+ return value.toString();
+}
+
projects / minitube / commitdiff