59 lines
2.2 KiB
Go
59 lines
2.2 KiB
Go
package shellsafe
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import "testing"
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func TestCommandIsReadOnly(t *testing.T) {
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readOnly := []string{
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// git read-only subcommands (the #5341 set, beyond status/diff/log/show).
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"git status", "git diff HEAD", "git log --oneline", "git show",
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"git rev-parse HEAD", "git describe --tags", "git reflog",
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"git for-each-ref", "git cat-file -p HEAD", "git ls-tree HEAD",
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"git rev-list --count HEAD", "git shortlog", "git name-rev HEAD",
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`git log "2>/dev/null"`, `git log 2\>/dev/null`,
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// general read-only commands.
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"ls -la", "cat go.mod", "grep -r foo .", "pwd", "head -n5 x", "stat x", "du -sh .",
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`grep 'a|b' file`, `printf "%s\n" "a && b"`,
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// tooling probes.
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"go version", "go env", "go list ./...", "go doc fmt",
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"npm view react version", "npm outdated", "cargo check",
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"docker ps", "docker images", "kubectl get pods",
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"node -v", "node --version", "python --version", "python3 --version",
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}
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for _, c := range readOnly {
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if _, _, ok := CommandIsReadOnly(c); !ok {
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t.Errorf("CommandIsReadOnly(%q) = false, want true", c)
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}
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}
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notReadOnly := []string{
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// write-capable commands / subcommands.
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"rm -rf /", "git push", "git commit -m x", "git checkout main",
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"git reset --hard", "git branch -d feature", "git remote add o url",
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"go build ./...", "go test ./...", "npm install", "docker rm x",
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"kubectl apply -f x.yaml", "mv a b", "chmod 777 x",
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// shell syntax can smuggle a write past a read-only base word.
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"git status && rm -rf /", "cat a | tee b", "echo $(rm x)",
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"git status > out.txt", "ls; rm x", "git log `whoami`", "echo $HOME",
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// unknown command.
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"frobnicate --all",
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}
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for _, c := range notReadOnly {
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if _, _, ok := CommandIsReadOnly(c); ok {
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t.Errorf("CommandIsReadOnly(%q) = true, want false", c)
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}
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}
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}
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func TestContainsShellSyntax(t *testing.T) {
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for _, c := range []string{"a && b", "a || b", "a | b", "a; b", "a > f", "a < f", "a & ", "$(x)", "`x`", "a\nb"} {
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if !ContainsShellSyntax(c) {
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t.Errorf("ContainsShellSyntax(%q) = false, want true", c)
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}
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}
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for _, c := range []string{"git status", "ls -la", "grep foo bar.go", `grep 'a|b' file`, `echo "a && b"`} {
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if ContainsShellSyntax(c) {
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t.Errorf("ContainsShellSyntax(%q) = true, want false", c)
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}
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}
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}
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