1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
|
package rewrite
import (
"testing"
"github.com/miekg/coredns/middleware"
"github.com/miekg/coredns/middleware/test"
"github.com/miekg/dns"
"golang.org/x/net/context"
)
func msgPrinter(ctx context.Context, w dns.ResponseWriter, r *dns.Msg) (int, error) {
w.WriteMsg(r)
return 0, nil
}
func TestRewrite(t *testing.T) {
rw := Rewrite{
Next: middleware.HandlerFunc(msgPrinter),
Rules: []Rule{
NewSimpleRule("from.nl.", "to.nl."),
NewSimpleRule("CH", "IN"),
NewSimpleRule("ANY", "HINFO"),
},
noRevert: true,
}
tests := []struct {
from string
fromT uint16
fromC uint16
to string
toT uint16
toC uint16
}{
{"from.nl.", dns.TypeA, dns.ClassINET, "to.nl.", dns.TypeA, dns.ClassINET},
{"a.nl.", dns.TypeA, dns.ClassINET, "a.nl.", dns.TypeA, dns.ClassINET},
{"a.nl.", dns.TypeA, dns.ClassCHAOS, "a.nl.", dns.TypeA, dns.ClassINET},
{"a.nl.", dns.TypeANY, dns.ClassINET, "a.nl.", dns.TypeHINFO, dns.ClassINET},
// name is rewritten, type is not.
{"from.nl.", dns.TypeANY, dns.ClassINET, "to.nl.", dns.TypeANY, dns.ClassINET},
// name is not, type is, but class is, because class is the 2nd rule.
{"a.nl.", dns.TypeANY, dns.ClassCHAOS, "a.nl.", dns.TypeANY, dns.ClassINET},
}
ctx := context.TODO()
for i, tc := range tests {
m := new(dns.Msg)
m.SetQuestion(tc.from, tc.fromT)
m.Question[0].Qclass = tc.fromC
rec := middleware.NewResponseRecorder(&test.ResponseWriter{})
rw.ServeDNS(ctx, rec, m)
resp := rec.Msg()
if resp.Question[0].Name != tc.to {
t.Errorf("Test %d: Expected Name to be '%s' but was '%s'", i, tc.to, resp.Question[0].Name)
}
if resp.Question[0].Qtype != tc.toT {
t.Errorf("Test %d: Expected Type to be '%d' but was '%d'", i, tc.toT, resp.Question[0].Qtype)
}
if resp.Question[0].Qclass != tc.toC {
t.Errorf("Test %d: Expected Class to be '%d' but was '%d'", i, tc.toC, resp.Question[0].Qclass)
}
}
/*
regexps := [][]string{
{"/reg/", ".*", "/to", ""},
{"/r/", "[a-z]+", "/toaz", "!.html|"},
{"/url/", "a([a-z0-9]*)s([A-Z]{2})", "/to/{path}", ""},
{"/ab/", "ab", "/ab?{query}", ".txt|"},
{"/ab/", "ab", "/ab?type=html&{query}", ".html|"},
{"/abc/", "ab", "/abc/{file}", ".html|"},
{"/abcd/", "ab", "/a/{dir}/{file}", ".html|"},
{"/abcde/", "ab", "/a#{fragment}", ".html|"},
{"/ab/", `.*\.jpg`, "/ajpg", ""},
{"/reggrp", `/ad/([0-9]+)([a-z]*)`, "/a{1}/{2}", ""},
{"/reg2grp", `(.*)`, "/{1}", ""},
{"/reg3grp", `(.*)/(.*)/(.*)`, "/{1}{2}{3}", ""},
}
for _, regexpRule := range regexps {
var ext []string
if s := strings.Split(regexpRule[3], "|"); len(s) > 1 {
ext = s[:len(s)-1]
}
rule, err := NewComplexRule(regexpRule[0], regexpRule[1], regexpRule[2], 0, ext, nil)
if err != nil {
t.Fatal(err)
}
rw.Rules = append(rw.Rules, rule)
}
*/
/*
statusTests := []struct {
status int
base string
to string
regexp string
statusExpected bool
}{
{400, "/status", "", "", true},
{400, "/ignore", "", "", false},
{400, "/", "", "^/ignore", false},
{400, "/", "", "(.*)", true},
{400, "/status", "", "", true},
}
for i, s := range statusTests {
urlPath := fmt.Sprintf("/status%d", i)
rule, err := NewComplexRule(s.base, s.regexp, s.to, s.status, nil, nil)
if err != nil {
t.Fatalf("Test %d: No error expected for rule but found %v", i, err)
}
rw.Rules = []Rule{rule}
req, err := http.NewRequest("GET", urlPath, nil)
if err != nil {
t.Fatalf("Test %d: Could not create HTTP request: %v", i, err)
}
rec := httptest.NewRecorder()
code, err := rw.ServeHTTP(rec, req)
if err != nil {
t.Fatalf("Test %d: No error expected for handler but found %v", i, err)
}
if s.statusExpected {
if rec.Body.String() != "" {
t.Errorf("Test %d: Expected empty body but found %s", i, rec.Body.String())
}
if code != s.status {
t.Errorf("Test %d: Expected status code %d found %d", i, s.status, code)
}
} else {
if code != 0 {
t.Errorf("Test %d: Expected no status code found %d", i, code)
}
}
}
*/
}
|
