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plugin/metadata: metadata is just label=value (#1914)

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This revert 17d807f0 and re-adds the metadata plugin as a plugin that
just sets a label to a value function.

Add package documentation on how to use the metadata package. Make it
clear that any caching is up to the Func implemented.

There are now - no in tree users. We could add the request metadata by
default under names that copy request.Request, i.e

request/ip - remote IP
request/port - remote port

Variables.go has been deleted.

Signed-off-by: Miek Gieben <miek@miek.nl>
This commit is contained in:
Miek Gieben
2018-07-01 20:01:17 +01:00
committed by GitHub
parent 0b326e2686
commit 99800a687c
16 changed files with 229 additions and 371 deletions
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6
plugin/rewrite/rewrite_test.go
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@@ -71,7 +71,7 @@ func TestNewRule(t *testing.T) {
{[]string{"edns0", "nsid", "append"}, false, reflect.TypeOf(&edns0NsidRule{})},
{[]string{"edns0", "nsid", "replace"}, false, reflect.TypeOf(&edns0NsidRule{})},
{[]string{"edns0", "nsid", "foo"}, true, nil},
{[]string{"edns0", "local", "set", "0xffee", "{dummy}"}, false, reflect.TypeOf(&edns0VariableRule{})},
{[]string{"edns0", "local", "set", "0xffee", "{dummy}"}, true, nil},
{[]string{"edns0", "local", "set", "0xffee", "{qname}"}, false, reflect.TypeOf(&edns0VariableRule{})},
{[]string{"edns0", "local", "set", "0xffee", "{qtype}"}, false, reflect.TypeOf(&edns0VariableRule{})},
{[]string{"edns0", "local", "set", "0xffee", "{client_ip}"}, false, reflect.TypeOf(&edns0VariableRule{})},
@@ -79,7 +79,7 @@ func TestNewRule(t *testing.T) {
{[]string{"edns0", "local", "set", "0xffee", "{protocol}"}, false, reflect.TypeOf(&edns0VariableRule{})},
{[]string{"edns0", "local", "set", "0xffee", "{server_ip}"}, false, reflect.TypeOf(&edns0VariableRule{})},
{[]string{"edns0", "local", "set", "0xffee", "{server_port}"}, false, reflect.TypeOf(&edns0VariableRule{})},
{[]string{"edns0", "local", "append", "0xffee", "{dummy}"}, false, reflect.TypeOf(&edns0VariableRule{})},
{[]string{"edns0", "local", "append", "0xffee", "{dummy}"}, true, nil},
{[]string{"edns0", "local", "append", "0xffee", "{qname}"}, false, reflect.TypeOf(&edns0VariableRule{})},
{[]string{"edns0", "local", "append", "0xffee", "{qtype}"}, false, reflect.TypeOf(&edns0VariableRule{})},
{[]string{"edns0", "local", "append", "0xffee", "{client_ip}"}, false, reflect.TypeOf(&edns0VariableRule{})},
@@ -87,7 +87,7 @@ func TestNewRule(t *testing.T) {
{[]string{"edns0", "local", "append", "0xffee", "{protocol}"}, false, reflect.TypeOf(&edns0VariableRule{})},
{[]string{"edns0", "local", "append", "0xffee", "{server_ip}"}, false, reflect.TypeOf(&edns0VariableRule{})},
{[]string{"edns0", "local", "append", "0xffee", "{server_port}"}, false, reflect.TypeOf(&edns0VariableRule{})},
{[]string{"edns0", "local", "replace", "0xffee", "{dummy}"}, false, reflect.TypeOf(&edns0VariableRule{})},
{[]string{"edns0", "local", "replace", "0xffee", "{dummy}"}, true, nil},
{[]string{"edns0", "local", "replace", "0xffee", "{qname}"}, false, reflect.TypeOf(&edns0VariableRule{})},
{[]string{"edns0", "local", "replace", "0xffee", "{qtype}"}, false, reflect.TypeOf(&edns0VariableRule{})},
{[]string{"edns0", "local", "replace", "0xffee", "{client_ip}"}, false, reflect.TypeOf(&edns0VariableRule{})},