December, 2018

Sun Dec 02, 2018 by Alan Orth in Notes

2018-12-01

Switch CGSpace (linode18) to use OpenJDK instead of Oracle JDK
I manually installed OpenJDK, then removed Oracle JDK, then re-ran the Ansible playbook to update all configuration files, etc
Then I ran all system updates and restarted the server

2018-12-02

I noticed that there is another issue with PDF thumbnails on CGSpace, and I see there was another Ghostscript vulnerability last week

The error when I try to manually run the media filter for one item from the command line:

org.im4java.core.InfoException: org.im4java.core.CommandException: org.im4java.core.CommandException: identify: FailedToExecuteCommand `"gs" -q -dQUIET -dSAFER -dBATCH -dNOPAUSE -dNOPROMPT -dMaxBitmap=500000000 -dAlignToPixels=0 -dGridFitTT=2 "-sDEVICE=pngalpha" -dTextAlphaBits=4 -dGraphicsAlphaBits=4 "-r72x72" -dFirstPage=1 -dLastPage=1 "-sOutputFile=/tmp/magick-12989PcFN0DnJOej7%d" "-f/tmp/magick-129895Bmp44lvUfxo" "-f/tmp/magick-12989C0QFG51fktLF"' (-1) @ error/delegate.c/ExternalDelegateCommand/461.
org.im4java.core.InfoException: org.im4java.core.CommandException: org.im4java.core.CommandException: identify: FailedToExecuteCommand `"gs" -q -dQUIET -dSAFER -dBATCH -dNOPAUSE -dNOPROMPT -dMaxBitmap=500000000 -dAlignToPixels=0 -dGridFitTT=2 "-sDEVICE=pngalpha" -dTextAlphaBits=4 -dGraphicsAlphaBits=4 "-r72x72" -dFirstPage=1 -dLastPage=1 "-sOutputFile=/tmp/magick-12989PcFN0DnJOej7%d" "-f/tmp/magick-129895Bmp44lvUfxo" "-f/tmp/magick-12989C0QFG51fktLF"' (-1) @ error/delegate.c/ExternalDelegateCommand/461.
        at org.im4java.core.Info.getBaseInfo(Info.java:360)
        at org.im4java.core.Info.<init>(Info.java:151)
        at org.dspace.app.mediafilter.ImageMagickThumbnailFilter.getImageFile(ImageMagickThumbnailFilter.java:142)
        at org.dspace.app.mediafilter.ImageMagickPdfThumbnailFilter.getDestinationStream(ImageMagickPdfThumbnailFilter.java:24)
        at org.dspace.app.mediafilter.FormatFilter.processBitstream(FormatFilter.java:170)
        at org.dspace.app.mediafilter.MediaFilterManager.filterBitstream(MediaFilterManager.java:475)
        at org.dspace.app.mediafilter.MediaFilterManager.filterItem(MediaFilterManager.java:429)
        at org.dspace.app.mediafilter.MediaFilterManager.applyFiltersItem(MediaFilterManager.java:401)
        at org.dspace.app.mediafilter.MediaFilterManager.main(MediaFilterManager.java:237)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at org.dspace.app.launcher.ScriptLauncher.runOneCommand(ScriptLauncher.java:226)
        at org.dspace.app.launcher.ScriptLauncher.main(ScriptLauncher.java:78)

A comment on StackOverflow question from yesterday suggests it might be a bug with the pngalpha device in Ghostscript and links to an upstream bug
I think we need to wait for a fix from Ubuntu