BZip2CompressorInputStream doesn't handle being given a wrong-format compressed
file
------------------------------------------------------------------------------------
Key: COMPRESS-174
URL: https://issues.apache.org/jira/browse/COMPRESS-174
Project: Commons Compress
Issue Type: Bug
Components: Compressors
Affects Versions: 1.3
Environment: Linux and Windows
Reporter: Andrew Pavlin
Priority: Minor
When reading a file through BZip2CompressorInputStream, and the user selects a
file of the wrong type (such as ZIP or GZIP), the read blows up with a strange
ArrayIndexOutOfBoundException, instead of reporting immediately that the input
data is of the wrong format.
The Bzip2Compressor should be able to identify whether a stream is of BZip2
format or not, and immediately reject it with a meaningful exception (example:
"ProtocolException: not a BZip2 compressed file").
Alternatively, are there functions in commons-compress that can identify the
compression type of an InputStream by inspection?
Example stack trace when using a ZIP input file:
Exception in thread "OSM Decompressor"
java.lang.ArrayIndexOutOfBoundsException: 900000
at
org.apache.commons.compress.compressors.bzip2.BZip2CompressorInputStream.getAndMoveToFrontDecode(BZip2CompressorInputStream.java:688)
at
org.apache.commons.compress.compressors.bzip2.BZip2CompressorInputStream.initBlock(BZip2CompressorInputStream.java:322)
at
org.apache.commons.compress.compressors.bzip2.BZip2CompressorInputStream.setupNoRandPartA(BZip2CompressorInputStream.java:880)
at
org.apache.commons.compress.compressors.bzip2.BZip2CompressorInputStream.setupNoRandPartB(BZip2CompressorInputStream.java:936)
at
org.apache.commons.compress.compressors.bzip2.BZip2CompressorInputStream.read0(BZip2CompressorInputStream.java:228)
at
org.apache.commons.compress.compressors.bzip2.BZip2CompressorInputStream.read(BZip2CompressorInputStream.java:180)
at java.io.InputStream.read(InputStream.java:82)
at org.ka2ddo.yaac.osm.OsmXmlSegmenter$1.run(OsmXmlSegmenter.java:129)
at java.lang.Thread.run(Thread.java:680)
--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators:
https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa
For more information on JIRA, see: http://www.atlassian.com/software/jira
