7ea35f9f8e
By not quoting the argument, an attacker with the ability to add files to the repository could pass arbitrary arguments to the highlight command, in particular, the --plug-in argument which can lead to arbitrary command execution. This patch adds simple argument quoting.
60 wiersze
2.3 KiB
Bash
Executable File
60 wiersze
2.3 KiB
Bash
Executable File
#!/bin/sh
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# This script can be used to implement syntax highlighting in the cgit
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# tree-view by refering to this file with the source-filter or repo.source-
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# filter options in cgitrc.
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#
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# This script requires a shell supporting the ${var##pattern} syntax.
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# It is supported by at least dash and bash, however busybox environments
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# might have to use an external call to sed instead.
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#
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# Note: the highlight command (http://www.andre-simon.de/) uses css for syntax
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# highlighting, so you'll probably want something like the following included
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# in your css file (generated by highlight 2.4.8 and adapted for cgit):
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#
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# table.blob .num { color:#2928ff; }
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# table.blob .esc { color:#ff00ff; }
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# table.blob .str { color:#ff0000; }
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# table.blob .dstr { color:#818100; }
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# table.blob .slc { color:#838183; font-style:italic; }
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# table.blob .com { color:#838183; font-style:italic; }
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# table.blob .dir { color:#008200; }
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# table.blob .sym { color:#000000; }
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# table.blob .kwa { color:#000000; font-weight:bold; }
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# table.blob .kwb { color:#830000; }
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# table.blob .kwc { color:#000000; font-weight:bold; }
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# table.blob .kwd { color:#010181; }
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#
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# The following environment variables can be used to retrieve the configuration
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# of the repository for which this script is called:
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# CGIT_REPO_URL ( = repo.url setting )
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# CGIT_REPO_NAME ( = repo.name setting )
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# CGIT_REPO_PATH ( = repo.path setting )
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# CGIT_REPO_OWNER ( = repo.owner setting )
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# CGIT_REPO_DEFBRANCH ( = repo.defbranch setting )
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# CGIT_REPO_SECTION ( = section setting )
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# CGIT_REPO_CLONE_URL ( = repo.clone-url setting )
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#
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# store filename and extension in local vars
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BASENAME="$1"
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EXTENSION="${BASENAME##*.}"
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[ "${BASENAME}" = "${EXTENSION}" ] && EXTENSION=txt
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[ -z "${EXTENSION}" ] && EXTENSION=txt
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# map Makefile and Makefile.* to .mk
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[ "${BASENAME%%.*}" = "Makefile" ] && EXTENSION=mk
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# highlight versions 2 and 3 have different commandline options. Specifically,
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# the -X option that is used for version 2 is replaced by the -O xhtml option
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# for version 3.
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#
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# Version 2 can be found (for example) on EPEL 5, while version 3 can be
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# found (for example) on EPEL 6.
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#
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# This is for version 2
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exec highlight --force -f -I -X -S "$EXTENSION" 2>/dev/null
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# This is for version 3
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#exec highlight --force -f -I -O xhtml -S "$EXTENSION" 2>/dev/null
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