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Check for accidentally overriding $PATH

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This commit is contained in:
Vidar Holen
2014-03-29 10:07:23 -07:00
parent de0145fb29
commit f01e6e1a99
1 changed files with 22 additions and 0 deletions
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22
ShellCheck/Analytics.hs
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@@ -189,6 +189,7 @@ nodeChecks = [
,checkInteractiveSu
,checkStderrPipe
,checkSetAssignment
,checkOverridingPath
]
@@ -2465,3 +2466,24 @@ checkSetAssignment params = checkUnqualifiedCommand "set" f
literal (T_NormalWord _ l) = concatMap literal l
literal (T_Literal _ str) = str
literal _ = "*"
prop_checkOverridingPath1 = verify checkOverridingPath "PATH=\"$var/$foo\""
prop_checkOverridingPath2 = verify checkOverridingPath "PATH=\"mydir\""
prop_checkOverridingPath3 = verify checkOverridingPath "PATH=/cow/foo"
prop_checkOverridingPath4 = verifyNot checkOverridingPath "PATH=/cow/foo/bin"
prop_checkOverridingPath5 = verifyNot checkOverridingPath "PATH='/bin:/sbin'"
prop_checkOverridingPath6 = verifyNot checkOverridingPath "PATH=\"$var/$foo\" cmd"
prop_checkOverridingPath7 = verifyNot checkOverridingPath "PATH=$OLDPATH"
prop_checkOverridingPath8 = verifyNot checkOverridingPath "PATH=$PATH:/stuff"
checkOverridingPath _ (T_SimpleCommand _ vars []) =
mapM_ checkVar vars
where
checkVar (T_Assignment id Assign "PATH" Nothing word) =
let string = concat $ deadSimple word
in unless (any (`isInfixOf` string) ["/bin", "/sbin" ]) $ do
when ('/' `elem` string && ':' `notElem` string) $ notify id
when (isLiteral word && ':' `notElem` string && '/' `notElem` string) $ notify id
checkVar _ = return ()
notify id = warn id 2123 "PATH is the shell search path. Use another name."
checkOverridingPath _ _ = return ()