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common.safelog.log_test.go Maven / Gradle / Ivy
package safelog
import (
"bytes"
"log"
"testing"
)
//Check to make sure that addresses split across calls to write are still scrubbed
func TestLogScrubberSplit(t *testing.T) {
input := []byte("test\nhttp2: panic serving [2620:101:f000:780:9097:75b1:519f:dbb8]:58344: interface conversion: *http2.responseWriter is not http.Hijacker: missing method Hijack\n")
expected := "test\nhttp2: panic serving [scrubbed]: interface conversion: *http2.responseWriter is not http.Hijacker: missing method Hijack\n"
var buff bytes.Buffer
scrubber := &LogScrubber{Output: &buff}
n, err := scrubber.Write(input[:12]) //test\nhttp2:
if n != 12 {
t.Errorf("wrong number of bytes %d", n)
}
if err != nil {
t.Errorf("%q", err)
}
if buff.String() != "test\n" {
t.Errorf("Got %q, expected %q", buff.String(), "test\n")
}
n, err = scrubber.Write(input[12:30]) //panic serving [2620:101:f
if n != 18 {
t.Errorf("wrong number of bytes %d", n)
}
if err != nil {
t.Errorf("%q", err)
}
if buff.String() != "test\n" {
t.Errorf("Got %q, expected %q", buff.String(), "test\n")
}
n, err = scrubber.Write(input[30:]) //000:780:9097:75b1:519f:dbb8]:58344: interface conversion: *http2.responseWriter is not http.Hijacker: missing method Hijack\n
if n != (len(input) - 30) {
t.Errorf("wrong number of bytes %d", n)
}
if err != nil {
t.Errorf("%q", err)
}
if buff.String() != expected {
t.Errorf("Got %q, expected %q", buff.String(), expected)
}
}
//Test the log scrubber on known problematic log messages
func TestLogScrubberMessages(t *testing.T) {
for _, test := range []struct {
input, expected string
}{
{
"http: TLS handshake error from 129.97.208.23:38310: ",
"http: TLS handshake error from [scrubbed]: \n",
},
{
"http2: panic serving [2620:101:f000:780:9097:75b1:519f:dbb8]:58344: interface conversion: *http2.responseWriter is not http.Hijacker: missing method Hijack",
"http2: panic serving [scrubbed]: interface conversion: *http2.responseWriter is not http.Hijacker: missing method Hijack\n",
},
{
//Make sure it doesn't scrub fingerprint
"a=fingerprint:sha-256 33:B6:FA:F6:94:CA:74:61:45:4A:D2:1F:2C:2F:75:8A:D9:EB:23:34:B2:30:E9:1B:2A:A6:A9:E0:44:72:CC:74",
"a=fingerprint:sha-256 33:B6:FA:F6:94:CA:74:61:45:4A:D2:1F:2C:2F:75:8A:D9:EB:23:34:B2:30:E9:1B:2A:A6:A9:E0:44:72:CC:74\n",
},
{
//try with enclosing parens
"(1:2:3:4:c:d:e:f) {1:2:3:4:c:d:e:f}",
"([scrubbed]) {[scrubbed]}\n",
},
{
//Make sure it doesn't scrub timestamps
"2019/05/08 15:37:31 starting",
"2019/05/08 15:37:31 starting\n",
},
} {
var buff bytes.Buffer
log.SetFlags(0) //remove all extra log output for test comparisons
log.SetOutput(&LogScrubber{Output: &buff})
log.Print(test.input)
if buff.String() != test.expected {
t.Errorf("%q: got %q, expected %q", test.input, buff.String(), test.expected)
}
}
}
func TestLogScrubberGoodFormats(t *testing.T) {
for _, addr := range []string{
// IPv4
"1.2.3.4",
"255.255.255.255",
// IPv4 with port
"1.2.3.4:55",
"255.255.255.255:65535",
// IPv6
"1:2:3:4:c:d:e:f",
"1111:2222:3333:4444:CCCC:DDDD:EEEE:FFFF",
// IPv6 with brackets
"[1:2:3:4:c:d:e:f]",
"[1111:2222:3333:4444:CCCC:DDDD:EEEE:FFFF]",
// IPv6 with brackets and port
"[1:2:3:4:c:d:e:f]:55",
"[1111:2222:3333:4444:CCCC:DDDD:EEEE:FFFF]:65535",
// compressed IPv6
"::f",
"::d:e:f",
"1:2:3::",
"1:2:3::d:e:f",
"1:2:3:d:e:f::",
"::1:2:3:d:e:f",
"1111:2222:3333::DDDD:EEEE:FFFF",
// compressed IPv6 with brackets
"[::d:e:f]",
"[1:2:3::]",
"[1:2:3::d:e:f]",
"[1111:2222:3333::DDDD:EEEE:FFFF]",
"[1:2:3:4:5:6::8]",
"[1::7:8]",
// compressed IPv6 with brackets and port
"[1::]:58344",
"[::d:e:f]:55",
"[1:2:3::]:55",
"[1:2:3::d:e:f]:55",
"[1111:2222:3333::DDDD:EEEE:FFFF]:65535",
// IPv4-compatible and IPv4-mapped
"::255.255.255.255",
"::ffff:255.255.255.255",
"[::255.255.255.255]",
"[::ffff:255.255.255.255]",
"[::255.255.255.255]:65535",
"[::ffff:255.255.255.255]:65535",
"[::ffff:0:255.255.255.255]",
"[2001:db8:3:4::192.0.2.33]",
} {
var buff bytes.Buffer
log.SetFlags(0) //remove all extra log output for test comparisons
log.SetOutput(&LogScrubber{Output: &buff})
log.Print(addr)
if buff.String() != "[scrubbed]\n" {
t.Errorf("%q: Got %q, expected %q", addr, buff.String(), "[scrubbed]\n")
}
}
}
