mirror of
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Various cleanups and fixes (#88)
Add port number to health check. Add tests the rewrite middleware. Fixes #36
This commit is contained in:
Miek Gieben
@@ -1,151 +1,142 @@
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package rewrite
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/*
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import (
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"testing"
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"github.com/miekg/coredns/middleware"
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coretest "github.com/miekg/coredns/middleware/testing"
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"github.com/miekg/dns"
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"golang.org/x/net/context"
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)
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func msgPrinter(ctx context.Context, w dns.ResponseWriter, r *dns.Msg) (int, error) {
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w.WriteMsg(r)
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return 0, nil
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}
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func TestRewrite(t *testing.T) {
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rw := Rewrite{
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Next: middleware.HandlerFunc(urlPrinter),
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Next: middleware.HandlerFunc(msgPrinter),
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Rules: []Rule{
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NewSimpleRule("/from", "/to"),
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NewSimpleRule("/a", "/b"),
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NewSimpleRule("/b", "/b{uri}"),
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NewSimpleRule("from.nl.", "to.nl."),
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NewSimpleRule("CH", "IN"),
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NewSimpleRule("ANY", "HINFO"),
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},
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FileSys: http.Dir("."),
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}
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regexps := [][]string{
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{"/reg/", ".*", "/to", ""},
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{"/r/", "[a-z]+", "/toaz", "!.html|"},
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{"/url/", "a([a-z0-9]*)s([A-Z]{2})", "/to/{path}", ""},
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{"/ab/", "ab", "/ab?{query}", ".txt|"},
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{"/ab/", "ab", "/ab?type=html&{query}", ".html|"},
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{"/abc/", "ab", "/abc/{file}", ".html|"},
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{"/abcd/", "ab", "/a/{dir}/{file}", ".html|"},
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{"/abcde/", "ab", "/a#{fragment}", ".html|"},
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{"/ab/", `.*\.jpg`, "/ajpg", ""},
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{"/reggrp", `/ad/([0-9]+)([a-z]*)`, "/a{1}/{2}", ""},
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{"/reg2grp", `(.*)`, "/{1}", ""},
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{"/reg3grp", `(.*)/(.*)/(.*)`, "/{1}{2}{3}", ""},
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}
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for _, regexpRule := range regexps {
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var ext []string
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if s := strings.Split(regexpRule[3], "|"); len(s) > 1 {
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ext = s[:len(s)-1]
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}
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rule, err := NewComplexRule(regexpRule[0], regexpRule[1], regexpRule[2], 0, ext, nil)
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if err != nil {
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t.Fatal(err)
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}
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rw.Rules = append(rw.Rules, rule)
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noRevert: true,
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}
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tests := []struct {
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from string
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expectedTo string
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from string
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fromT uint16
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fromC uint16
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to string
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toT uint16
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toC uint16
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}{
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{"/from", "/to"},
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{"/a", "/b"},
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{"/b", "/b/b"},
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{"/aa", "/aa"},
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{"/", "/"},
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{"/a?foo=bar", "/b?foo=bar"},
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{"/asdf?foo=bar", "/asdf?foo=bar"},
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{"/foo#bar", "/foo#bar"},
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{"/a#foo", "/b#foo"},
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{"/reg/foo", "/to"},
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{"/re", "/re"},
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{"/r/", "/r/"},
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{"/r/123", "/r/123"},
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{"/r/a123", "/toaz"},
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{"/r/abcz", "/toaz"},
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{"/r/z", "/toaz"},
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{"/r/z.html", "/r/z.html"},
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{"/r/z.js", "/toaz"},
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{"/url/asAB", "/to/url/asAB"},
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{"/url/aBsAB", "/url/aBsAB"},
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{"/url/a00sAB", "/to/url/a00sAB"},
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{"/url/a0z0sAB", "/to/url/a0z0sAB"},
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{"/ab/aa", "/ab/aa"},
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{"/ab/ab", "/ab/ab"},
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{"/ab/ab.txt", "/ab"},
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{"/ab/ab.txt?name=name", "/ab?name=name"},
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{"/ab/ab.html?name=name", "/ab?type=html&name=name"},
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{"/abc/ab.html", "/abc/ab.html"},
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{"/abcd/abcd.html", "/a/abcd/abcd.html"},
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{"/abcde/abcde.html", "/a"},
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{"/abcde/abcde.html#1234", "/a#1234"},
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{"/ab/ab.jpg", "/ajpg"},
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{"/reggrp/ad/12", "/a12"},
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{"/reggrp/ad/124a", "/a124/a"},
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{"/reggrp/ad/124abc", "/a124/abc"},
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{"/reg2grp/ad/124abc", "/ad/124abc"},
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{"/reg3grp/ad/aa/66", "/adaa66"},
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{"/reg3grp/ad612/n1n/ab", "/ad612n1nab"},
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{"from.nl.", dns.TypeA, dns.ClassINET, "to.nl.", dns.TypeA, dns.ClassINET},
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{"a.nl.", dns.TypeA, dns.ClassINET, "a.nl.", dns.TypeA, dns.ClassINET},
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{"a.nl.", dns.TypeA, dns.ClassCHAOS, "a.nl.", dns.TypeA, dns.ClassINET},
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{"a.nl.", dns.TypeANY, dns.ClassINET, "a.nl.", dns.TypeHINFO, dns.ClassINET},
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// name is rewritten, type is not.
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{"from.nl.", dns.TypeANY, dns.ClassINET, "to.nl.", dns.TypeANY, dns.ClassINET},
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// name is not, type is, but class is, because class is the 2nd rule.
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{"a.nl.", dns.TypeANY, dns.ClassCHAOS, "a.nl.", dns.TypeANY, dns.ClassINET},
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}
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ctx := context.TODO()
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for i, test := range tests {
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req, err := http.NewRequest("GET", test.from, nil)
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if err != nil {
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t.Fatalf("Test %d: Could not create HTTP request: %v", i, err)
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m := new(dns.Msg)
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m.SetQuestion(test.from, test.fromT)
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m.Question[0].Qclass = test.fromC
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rec := middleware.NewResponseRecorder(&coretest.ResponseWriter{})
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rw.ServeDNS(ctx, rec, m)
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resp := rec.Msg()
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if resp.Question[0].Name != test.to {
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t.Errorf("Test %d: Expected Name to be '%s' but was '%s'", i, test.to, resp.Question[0].Name)
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}
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rec := httptest.NewRecorder()
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rw.ServeHTTP(rec, req)
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if rec.Body.String() != test.expectedTo {
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t.Errorf("Test %d: Expected URL to be '%s' but was '%s'",
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i, test.expectedTo, rec.Body.String())
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if resp.Question[0].Qtype != test.toT {
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t.Errorf("Test %d: Expected Type to be '%d' but was '%d'", i, test.toT, resp.Question[0].Qtype)
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}
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if resp.Question[0].Qclass != test.toC {
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t.Errorf("Test %d: Expected Class to be '%d' but was '%d'", i, test.toC, resp.Question[0].Qclass)
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}
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}
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statusTests := []struct {
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status int
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base string
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to string
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regexp string
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statusExpected bool
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}{
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{400, "/status", "", "", true},
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{400, "/ignore", "", "", false},
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{400, "/", "", "^/ignore", false},
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{400, "/", "", "(.*)", true},
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{400, "/status", "", "", true},
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}
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for i, s := range statusTests {
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urlPath := fmt.Sprintf("/status%d", i)
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rule, err := NewComplexRule(s.base, s.regexp, s.to, s.status, nil, nil)
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if err != nil {
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t.Fatalf("Test %d: No error expected for rule but found %v", i, err)
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}
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rw.Rules = []Rule{rule}
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req, err := http.NewRequest("GET", urlPath, nil)
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if err != nil {
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t.Fatalf("Test %d: Could not create HTTP request: %v", i, err)
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/*
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regexps := [][]string{
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{"/reg/", ".*", "/to", ""},
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{"/r/", "[a-z]+", "/toaz", "!.html|"},
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{"/url/", "a([a-z0-9]*)s([A-Z]{2})", "/to/{path}", ""},
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{"/ab/", "ab", "/ab?{query}", ".txt|"},
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{"/ab/", "ab", "/ab?type=html&{query}", ".html|"},
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{"/abc/", "ab", "/abc/{file}", ".html|"},
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{"/abcd/", "ab", "/a/{dir}/{file}", ".html|"},
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{"/abcde/", "ab", "/a#{fragment}", ".html|"},
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{"/ab/", `.*\.jpg`, "/ajpg", ""},
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{"/reggrp", `/ad/([0-9]+)([a-z]*)`, "/a{1}/{2}", ""},
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{"/reg2grp", `(.*)`, "/{1}", ""},
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{"/reg3grp", `(.*)/(.*)/(.*)`, "/{1}{2}{3}", ""},
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}
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rec := httptest.NewRecorder()
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code, err := rw.ServeHTTP(rec, req)
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if err != nil {
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t.Fatalf("Test %d: No error expected for handler but found %v", i, err)
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for _, regexpRule := range regexps {
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var ext []string
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if s := strings.Split(regexpRule[3], "|"); len(s) > 1 {
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ext = s[:len(s)-1]
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}
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rule, err := NewComplexRule(regexpRule[0], regexpRule[1], regexpRule[2], 0, ext, nil)
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if err != nil {
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t.Fatal(err)
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}
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rw.Rules = append(rw.Rules, rule)
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}
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if s.statusExpected {
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if rec.Body.String() != "" {
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t.Errorf("Test %d: Expected empty body but found %s", i, rec.Body.String())
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*/
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/*
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statusTests := []struct {
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status int
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base string
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to string
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regexp string
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statusExpected bool
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}{
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{400, "/status", "", "", true},
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{400, "/ignore", "", "", false},
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{400, "/", "", "^/ignore", false},
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{400, "/", "", "(.*)", true},
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{400, "/status", "", "", true},
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}
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for i, s := range statusTests {
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urlPath := fmt.Sprintf("/status%d", i)
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rule, err := NewComplexRule(s.base, s.regexp, s.to, s.status, nil, nil)
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if err != nil {
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t.Fatalf("Test %d: No error expected for rule but found %v", i, err)
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}
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if code != s.status {
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t.Errorf("Test %d: Expected status code %d found %d", i, s.status, code)
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rw.Rules = []Rule{rule}
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req, err := http.NewRequest("GET", urlPath, nil)
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if err != nil {
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t.Fatalf("Test %d: Could not create HTTP request: %v", i, err)
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}
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} else {
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if code != 0 {
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t.Errorf("Test %d: Expected no status code found %d", i, code)
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rec := httptest.NewRecorder()
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code, err := rw.ServeHTTP(rec, req)
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if err != nil {
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t.Fatalf("Test %d: No error expected for handler but found %v", i, err)
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}
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if s.statusExpected {
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if rec.Body.String() != "" {
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t.Errorf("Test %d: Expected empty body but found %s", i, rec.Body.String())
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}
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if code != s.status {
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t.Errorf("Test %d: Expected status code %d found %d", i, s.status, code)
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}
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} else {
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if code != 0 {
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t.Errorf("Test %d: Expected no status code found %d", i, code)
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}
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}
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}
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}
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*/
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}
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func urlPrinter(w http.ResponseWriter, r *http.Request) (int, error) {
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fmt.Fprintf(w, r.URL.String())
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return 0, nil
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}
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*/
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