[
https://issues.apache.org/jira/browse/COMPRESS-514?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17362915#comment-17362915
]
A Kelday commented on COMPRESS-514:
-----------------------------------
Hi,
I see there's a new github comment about rebasing the current (very old) PR.
I'll hopefully have some time to look at this again soon, but I no longer have
the "test case" 7zip to work with. It contained 3rd party data which cannot be
retained or shared, plus it was over 1TB.
I'll attempt to create a smaller test case 7zip which reproduces the original
problem, but it could take some time since it probably requires at least 20
million central directory paths.
> SevenZFile fails with encoded header over 2GiB
> ----------------------------------------------
>
> Key: COMPRESS-514
> URL: https://issues.apache.org/jira/browse/COMPRESS-514
> Project: Commons Compress
> Issue Type: Bug
> Components: Archivers
> Affects Versions: 1.20
> Reporter: A Kelday
> Priority: Minor
> Attachments: HeaderChannelBuffer.java
>
> Time Spent: 2h
> Remaining Estimate: 0h
>
> When reading what some may call a large encrypted 7zip file (1.2TB with 22
> million files), the read fails at the header stage with the trace below. Is
> this within the spec? I've written some code to handle it, because I did
> actually need to extract the file in java. If that's of any use I can provide
> it (it's a naive wrapper that just pages in a buffer at a time).
>
> {code:java}
> Exception in thread "main" java.io.IOException: Cannot handle
> unpackSize2416988886
> at
> org.apache.commons.compress.archivers.sevenz.SevenZFile.assertFitsIntoInt(SevenZFile.java:1523)
> at
> org.apache.commons.compress.archivers.sevenz.SevenZFile.readEncodedHeader(SevenZFile.java:622)
> at
> org.apache.commons.compress.archivers.sevenz.SevenZFile.initializeArchive(SevenZFile.java:532)
> at
> org.apache.commons.compress.archivers.sevenz.SevenZFile.readHeaders(SevenZFile.java:468)
> at
> org.apache.commons.compress.archivers.sevenz.SevenZFile.<init>(SevenZFile.java:337)
> at
> org.apache.commons.compress.archivers.sevenz.SevenZFile.<init>(SevenZFile.java:129)
> at
> org.apache.commons.compress.archivers.sevenz.SevenZFile.<init>(SevenZFile.java:116)
> {code}
> 7zip itself can also open it (and display/extract etc.), here are the stats:
>
>
> {code:java}
> Size: 2 489 903 580 875
> Packed Size: 1 349 110 308 832
> Folders: 40 005
> Files: 22 073 957
> CRC: E26F6A96
> {code}
--
This message was sent by Atlassian Jira
(v8.3.4#803005)
