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https://github.com/ceph/ceph-csi.git
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f87d06ed85
Several packages are only used while running the e2e suite. These packages are less important to update, as the they can not influence the final executable that is part of the Ceph-CSI container-image. By moving these dependencies out of the main Ceph-CSI go.mod, it is easier to identify if a reported CVE affects Ceph-CSI, or only the testing (like most of the Kubernetes CVEs). Signed-off-by: Niels de Vos <ndevos@ibm.com>
85 lines
2.0 KiB
Go
85 lines
2.0 KiB
Go
package dbus
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import "net/url"
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// EscapeBusAddressValue implements a requirement to escape the values
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// in D-Bus server addresses, as defined by the D-Bus specification at
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// https://dbus.freedesktop.org/doc/dbus-specification.html#addresses.
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func EscapeBusAddressValue(val string) string {
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toEsc := strNeedsEscape(val)
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if toEsc == 0 {
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// Avoid unneeded allocation/copying.
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return val
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}
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// Avoid allocation for short paths.
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var buf [64]byte
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var out []byte
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// Every to-be-escaped byte needs 2 extra bytes.
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required := len(val) + 2*toEsc
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if required <= len(buf) {
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out = buf[:required]
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} else {
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out = make([]byte, required)
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}
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j := 0
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for i := 0; i < len(val); i++ {
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if ch := val[i]; needsEscape(ch) {
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// Convert ch to %xx, where xx is hex value.
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out[j] = '%'
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out[j+1] = hexchar(ch >> 4)
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out[j+2] = hexchar(ch & 0x0F)
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j += 3
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} else {
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out[j] = ch
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j++
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}
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}
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return string(out)
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}
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// UnescapeBusAddressValue unescapes values in D-Bus server addresses,
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// as defined by the D-Bus specification at
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// https://dbus.freedesktop.org/doc/dbus-specification.html#addresses.
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func UnescapeBusAddressValue(val string) (string, error) {
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// Looks like url.PathUnescape does exactly what is required.
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return url.PathUnescape(val)
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}
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// hexchar returns an octal representation of a n, where n < 16.
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// For invalid values of n, the function panics.
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func hexchar(n byte) byte {
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const hex = "0123456789abcdef"
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// For n >= len(hex), runtime will panic.
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return hex[n]
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}
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// needsEscape tells if a byte is NOT one of optionally-escaped bytes.
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func needsEscape(c byte) bool {
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if 'a' <= c && c <= 'z' || 'A' <= c && c <= 'Z' || '0' <= c && c <= '9' {
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return false
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}
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switch c {
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case '-', '_', '/', '\\', '.', '*':
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return false
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}
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return true
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}
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// strNeedsEscape tells how many bytes in the string need escaping.
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func strNeedsEscape(val string) int {
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count := 0
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for i := 0; i < len(val); i++ {
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if needsEscape(val[i]) {
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count++
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}
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}
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return count
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}
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