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NewPipeExtractor
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Code Issues Releases Wiki Activity

Improve getDescriptionFuncName by removing catches and adding a loop

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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27
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 { private String getDecryptionFuncName(String playerCode) throws DecryptException {
String decryptionFunctionName; String[] decryptionFuncNameRegexes = {
// Cascading things in catch is ugly, but its faster than running a match before getting the actual name DECRYPTION_SIGNATURE_FUNCTION_REGEX,
// to se if the function can actually be found with the given regex. DECRYPTION_AKAMAIZED_SHORT_STRING_REGEX,
// However if this cascading should probably be cleaned up somehow as it looks a bit weird. DECRYPTION_AKAMAIZED_STRING_REGEX
try { };
decryptionFunctionName = Parser.matchGroup1(DECRYPTION_SIGNATURE_FUNCTION_REGEX, playerCode); Parser.RegexException exception = null;
} catch (Parser.RegexException re) { for (String regex : decryptionFuncNameRegexes) {
try { try {
decryptionFunctionName = Parser.matchGroup1(DECRYPTION_AKAMAIZED_SHORT_STRING_REGEX, playerCode); return Parser.matchGroup1(regex, playerCode);
} catch (Parser.RegexException re2) { } catch (Parser.RegexException re) {
try { if (exception == null)
decryptionFunctionName = Parser.matchGroup1(DECRYPTION_AKAMAIZED_STRING_REGEX, playerCode); exception = re;
} catch (Parser.RegexException re3) {
throw new DecryptException("Could not find decrypt function with any of the given patterns.", re);
}
} }
} }
return decryptionFunctionName; throw new DecryptException("Could not find decrypt function with any of the given patterns.", exception);
} }
@Nonnull @Nonnull