mirror of
https://github.com/anchore/syft.git
synced 2026-10-30 14:02:26 +01:00
111 lines
3.5 KiB
Go
111 lines
3.5 KiB
Go
package archive
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import (
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"context"
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"strings"
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"testing"
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"github.com/stretchr/testify/assert"
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"github.com/stretchr/testify/require"
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"github.com/anchore/syft/syft/file"
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)
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func TestTraversalContextRoundTrip(t *testing.T) {
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assert.Nil(t, TraversalFromContext(context.Background()))
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trav := &Traversal{Location: file.NewLocation("app.war")}
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ctx := WithTraversal(context.Background(), trav)
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require.Same(t, trav, TraversalFromContext(ctx))
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child := &Traversal{Location: locationIn("app.war", "/WEB-INF/lib/dep.jar")}
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ctx = WithTraversal(ctx, child)
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require.Same(t, child, TraversalFromContext(ctx))
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}
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// locationIn is a location as the Index returns it: an entry path stamped with the containing chain.
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func locationIn(archivePath, entryPath string) file.Location {
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loc := file.NewLocation(entryPath)
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loc.ArchivePath = archivePath
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return loc
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}
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func TestVirtualPath(t *testing.T) {
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tests := []struct {
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name string
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location file.Location
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expected string
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}{
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{
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name: "outside an archive returns the path unchanged",
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location: file.NewLocation("/WEB-INF/lib/dep.jar"),
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expected: "/WEB-INF/lib/dep.jar",
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},
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{
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name: "outside an archive preserves a relative path",
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location: file.NewLocation("some/dir/example.jar"),
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expected: "some/dir/example.jar",
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},
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{
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name: "single level trims leading slash",
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location: locationIn("app.war", "/WEB-INF/lib/dep.jar"),
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expected: "app.war:WEB-INF/lib/dep.jar",
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},
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{
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name: "single level with slash-less entry",
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location: locationIn("app.war", "WEB-INF/lib/dep.jar"),
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expected: "app.war:WEB-INF/lib/dep.jar",
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},
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{
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name: "multi-level chain",
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location: locationIn("app.war:WEB-INF/lib/dep.jar", "/inner/most.jar"),
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expected: "app.war:WEB-INF/lib/dep.jar:inner/most.jar",
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},
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{
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// a colon in the entry name must not be mistaken for a chain delimiter
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name: "colon in entry path is escaped",
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location: locationIn("app.war", "WEB-INF/lib/dep:special.jar"),
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expected: "app.war:WEB-INF/lib/dep%3Aspecial.jar",
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},
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{
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name: "every colon in the entry path is escaped",
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location: locationIn("app.war", "lib/a:b:c.jar"),
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expected: "app.war:lib/a%3Ab%3Ac.jar",
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},
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{
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name: "access path is preferred over real path",
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location: file.NewVirtualLocation("/real/dep.jar", "/link/dep.jar"),
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expected: "/link/dep.jar",
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},
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}
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for _, tt := range tests {
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t.Run(tt.name, func(t *testing.T) {
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assert.Equal(t, tt.expected, VirtualPath(tt.location))
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})
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}
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}
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func TestVirtualPath_theEscapeCharacterIsNotItselfEscaped(t *testing.T) {
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// an accepted limit: an entry path holding the literal text %3A is indistinguishable from one holding
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// a colon. Escaping % too would move many more real identities than it protects.
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fromColon := VirtualPath(locationIn("outer.zip", "a:b.jar"))
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fromLiteral := VirtualPath(locationIn("outer.zip", "a%3Ab.jar"))
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assert.Equal(t, "outer.zip:a%3Ab.jar", fromColon)
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assert.Equal(t, fromColon, fromLiteral)
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}
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func TestVirtualPath_escapingComposesAcrossNestingLevels(t *testing.T) {
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level2 := VirtualPath(locationIn("outer.zip", "lib/mid:dle.war"))
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require.Equal(t, "outer.zip:lib/mid%3Adle.war", level2)
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final := VirtualPath(locationIn(level2, "WEB-INF/lib/inn:er.jar"))
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require.Equal(t, "outer.zip:lib/mid%3Adle.war:WEB-INF/lib/inn%3Aer.jar", final)
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assert.Equal(t,
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[]string{"outer.zip", "lib/mid%3Adle.war", "WEB-INF/lib/inn%3Aer.jar"},
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strings.Split(final, ":"),
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"splitting on ':' must recover exactly the three real archive boundaries",
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)
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}
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