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Improve getDescriptionFuncName by removing catches and adding a loop

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This commit is contained in:
TobiGr 2020-01-24 01:30:54 +01:00
parent 9b45c61103
commit bce87f3d01
1 changed files with 12 additions and 15 deletions
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25
extractor/src/main/java/org/schabi/newpipe/extractor/services/youtube/extractors/YoutubeStreamExtractor.java
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@ -868,24 +868,21 @@ public class YoutubeStreamExtractor extends StreamExtractor {
}
private String getDecryptionFuncName(String playerCode) throws DecryptException {
String decryptionFunctionName;
// Cascading things in catch is ugly, but its faster than running a match before getting the actual name
// to se if the function can actually be found with the given regex.
// However if this cascading should probably be cleaned up somehow as it looks a bit weird.
String[] decryptionFuncNameRegexes = {
DECRYPTION_SIGNATURE_FUNCTION_REGEX,
DECRYPTION_AKAMAIZED_SHORT_STRING_REGEX,
DECRYPTION_AKAMAIZED_STRING_REGEX
};
Parser.RegexException exception = null;
for (String regex : decryptionFuncNameRegexes) {
try {
decryptionFunctionName = Parser.matchGroup1(DECRYPTION_SIGNATURE_FUNCTION_REGEX, playerCode);
return Parser.matchGroup1(regex, playerCode);
} catch (Parser.RegexException re) {
try {
decryptionFunctionName = Parser.matchGroup1(DECRYPTION_AKAMAIZED_SHORT_STRING_REGEX, playerCode);
} catch (Parser.RegexException re2) {
try {
decryptionFunctionName = Parser.matchGroup1(DECRYPTION_AKAMAIZED_STRING_REGEX, playerCode);
} catch (Parser.RegexException re3) {
throw new DecryptException("Could not find decrypt function with any of the given patterns.", re);
if (exception == null)
exception = re;
}
}
}
return decryptionFunctionName;
throw new DecryptException("Could not find decrypt function with any of the given patterns.", exception);
}
@Nonnull