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blocky/resolver/blocking_resolver_test.go

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package resolver
import (
"github.com/0xERR0R/blocky/config"
. "github.com/0xERR0R/blocky/evt"
. "github.com/0xERR0R/blocky/helpertest"
"github.com/0xERR0R/blocky/lists"
. "github.com/0xERR0R/blocky/model"
"github.com/0xERR0R/blocky/redis"
"github.com/0xERR0R/blocky/util"
"github.com/alicebob/miniredis/v2"
"github.com/creasty/defaults"
"time"
"github.com/miekg/dns"
. "github.com/onsi/ginkgo/v2"
. "github.com/onsi/gomega"
"github.com/stretchr/testify/mock"
)
var group1File, group2File, defaultGroupFile *TmpFile
var tmpDir *TmpFolder
var _ = BeforeSuite(func() {
tmpDir = NewTmpFolder("BlockingResolver")
Expect(tmpDir.Error).Should(Succeed())
DeferCleanup(tmpDir.Clean)
group1File = tmpDir.CreateStringFile("group1File", "DOMAIN1.com")
Expect(group1File.Error).Should(Succeed())
group2File = tmpDir.CreateStringFile("group2File", "blocked2.com")
Expect(group2File.Error).Should(Succeed())
defaultGroupFile = tmpDir.CreateStringFile("defaultGroupFile",
"blocked3.com",
"123.145.123.145",
"2001:db8:85a3:08d3::370:7344",
"badcnamedomain.com")
Expect(defaultGroupFile.Error).Should(Succeed())
})
var _ = Describe("BlockingResolver", Label("blockingResolver"), func() {
var (
sut *BlockingResolver
sutConfig config.BlockingConfig
m *MockResolver
mockAnswer *dns.Msg
err error
resp *Response
expectedReturnCode int
)
BeforeEach(func() {
expectedReturnCode = dns.RcodeSuccess
sutConfig = config.BlockingConfig{
BlockType: "ZEROIP",
BlockTTL: config.Duration(time.Minute),
}
mockAnswer = new(dns.Msg)
})
JustBeforeEach(func() {
m = &MockResolver{}
m.On("Resolve", mock.Anything).Return(&Response{Res: mockAnswer}, nil)
tmp, err := NewBlockingResolver(sutConfig, nil, skipUpstreamCheck)
Expect(err).Should(Succeed())
sut = tmp.(*BlockingResolver)
sut.Next(m)
sut.RefreshLists()
})
AfterEach(func() {
Expect(err).Should(Succeed())
if resp != nil {
Expect(resp.Res.Rcode).Should(Equal(expectedReturnCode))
}
})
Describe("Events", func() {
BeforeEach(func() {
sutConfig = config.BlockingConfig{
BlockType: "ZEROIP",
BlockTTL: config.Duration(time.Minute),
BlackLists: map[string][]string{
"gr1": {group1File.Path},
"gr2": {group2File.Path},
},
}
})
When("List is refreshed", func() {
It("event should be fired", func() {
groupCnt := make(map[string]int)
err = Bus().Subscribe(BlockingCacheGroupChanged, func(listType lists.ListCacheType, group string, cnt int) {
groupCnt[group] = cnt
})
Expect(err).Should(Succeed())
// recreate to trigger a reload
tmp, err := NewBlockingResolver(sutConfig, nil, skipUpstreamCheck)
Expect(err).Should(Succeed())
sut = tmp.(*BlockingResolver)
Eventually(groupCnt, "1s").Should(HaveLen(2))
})
})
})
Describe("Blocking with full-qualified client name", func() {
BeforeEach(func() {
sutConfig = config.BlockingConfig{
BlockType: "ZEROIP",
BlockTTL: config.Duration(time.Minute),
BlackLists: map[string][]string{
"gr1": {group1File.Path},
"gr2": {group2File.Path},
},
ClientGroupsBlock: map[string][]string{
"default": {"gr1"},
"full.qualified.com": {"gr2"},
},
}
})
When("Full-qualified group name is used", func() {
It("should block request", func() {
m.AnswerFn = func(t uint16, qName string) *dns.Msg {
if t == dns.TypeA && qName == "full.qualified.com." {
a, _ := util.NewMsgWithAnswer(qName, 60*60, dns.Type(dns.TypeA), "192.168.178.39")
return a
}
return nil
}
Bus().Publish(ApplicationStarted, "")
Eventually(func(g Gomega) {
resp, err = sut.Resolve(newRequestWithClient("blocked2.com.", dns.Type(dns.TypeA), "192.168.178.39", "client1"))
g.Expect(err).NotTo(HaveOccurred())
g.Expect(resp.Res.Answer).ShouldNot(BeNil())
g.Expect(resp.Res.Answer).Should(BeDNSRecord("blocked2.com.", dns.TypeA, 60, "0.0.0.0"))
}, "10s", "1s").Should(Succeed())
})
})
})
Describe("Blocking requests", func() {
var rType ResponseType
BeforeEach(func() {
sutConfig = config.BlockingConfig{
BlockTTL: config.Duration(6 * time.Hour),
BlackLists: map[string][]string{
"gr1": {group1File.Path},
"gr2": {group2File.Path},
"defaultGroup": {defaultGroupFile.Path},
},
ClientGroupsBlock: map[string][]string{
"client1": {"gr1"},
"client2,client3": {"gr1"},
"client3": {"gr2"},
"192.168.178.55": {"gr1"},
"altName": {"gr2"},
"10.43.8.67/28": {"gr1"},
"wildcard[0-9]*": {"gr1"},
"default": {"defaultGroup"},
},
BlockType: "ZeroIP",
}
rType = ResponseTypeBLOCKED
})
AfterEach(func() {
Expect(resp.RType).Should(Equal(rType))
})
When("client name is defined in client groups block", func() {
It("should block the A query if domain is on the black list (single)", func() {
resp, err = sut.Resolve(newRequestWithClient("domain1.com.", dns.Type(dns.TypeA), "1.2.1.2", "client1"))
Expect(resp.Res.Answer).Should(BeDNSRecord("domain1.com.", dns.TypeA, 21600, "0.0.0.0"))
})
It("should block the A query if domain is on the black list (multipart 1)", func() {
resp, err = sut.Resolve(newRequestWithClient("domain1.com.", dns.Type(dns.TypeA), "1.2.1.2", "client2"))
Expect(resp.Res.Answer).Should(BeDNSRecord("domain1.com.", dns.TypeA, 21600, "0.0.0.0"))
})
It("should block the A query if domain is on the black list (multipart 2)", func() {
resp, err = sut.Resolve(newRequestWithClient("domain1.com.", dns.Type(dns.TypeA), "1.2.1.2", "client3"))
Expect(resp.Res.Answer).Should(BeDNSRecord("domain1.com.", dns.TypeA, 21600, "0.0.0.0"))
})
It("should block the A query if domain is on the black list (merged)", func() {
resp, err = sut.Resolve(newRequestWithClient("blocked2.com.", dns.Type(dns.TypeA), "1.2.1.2", "client3"))
Expect(resp.Res.Answer).Should(BeDNSRecord("blocked2.com.", dns.TypeA, 21600, "0.0.0.0"))
})
It("should block the AAAA query if domain is on the black list", func() {
resp, err = sut.Resolve(newRequestWithClient("domain1.com.", dns.Type(dns.TypeAAAA), "1.2.1.2", "client1"))
Expect(resp.Res.Answer).Should(BeDNSRecord("domain1.com.", dns.TypeAAAA, 21600, "::"))
})
It("should block the HTTPS query if domain is on the black list", func() {
resp, err = sut.Resolve(newRequestWithClient("domain1.com.", dns.Type(dns.TypeHTTPS), "1.2.1.2", "client1"))
expectedReturnCode = dns.RcodeNameError
Expect(resp.Res.Rcode).Should(Equal(dns.RcodeNameError))
})
It("should block the MX query if domain is on the black list", func() {
resp, err = sut.Resolve(newRequestWithClient("domain1.com.", dns.Type(dns.TypeMX), "1.2.1.2", "client1"))
expectedReturnCode = dns.RcodeNameError
Expect(resp.Res.Rcode).Should(Equal(dns.RcodeNameError))
})
})
When("Client ip is defined in client groups block", func() {
It("should block the query if domain is on the black list", func() {
resp, err = sut.Resolve(newRequestWithClient("domain1.com.", dns.Type(dns.TypeA), "192.168.178.55", "unknown"))
Expect(resp.Res.Answer).Should(BeDNSRecord("domain1.com.", dns.TypeA, 21600, "0.0.0.0"))
})
})
When("Client CIDR (10.43.8.64 - 10.43.8.79) is defined in client groups block", func() {
JustBeforeEach(func() {
rType = ResponseTypeRESOLVED
})
It("should not block the query for 10.43.8.63 if domain is on the black list", func() {
resp, err = sut.Resolve(newRequestWithClient("domain1.com.", dns.Type(dns.TypeA), "10.43.8.63", "unknown"))
// was delegated to next resolver
m.AssertExpectations(GinkgoT())
})
It("should not block the query for 10.43.8.80 if domain is on the black list", func() {
resp, err = sut.Resolve(newRequestWithClient("domain1.com.", dns.Type(dns.TypeA), "10.43.8.80", "unknown"))
// was delegated to next resolver
m.AssertExpectations(GinkgoT())
})
})
When("Client CIDR (10.43.8.64 - 10.43.8.79) is defined in client groups block", func() {
It("should block the query for 10.43.8.64 if domain is on the black list", func() {
resp, err = sut.Resolve(newRequestWithClient("domain1.com.", dns.Type(dns.TypeA), "10.43.8.64", "unknown"))
Expect(resp.Res.Answer).Should(BeDNSRecord("domain1.com.", dns.TypeA, 21600, "0.0.0.0"))
})
It("should block the query for 10.43.8.79 if domain is on the black list", func() {
resp, err = sut.Resolve(newRequestWithClient("domain1.com.", dns.Type(dns.TypeA), "10.43.8.79", "unknown"))
Expect(resp.Res.Answer).Should(BeDNSRecord("domain1.com.", dns.TypeA, 21600, "0.0.0.0"))
})
})
When("Client has multiple names and for each name a client group block definition exists", func() {
It("should block query if domain is in one group", func() {
resp, err = sut.Resolve(newRequestWithClient("domain1.com.", dns.Type(dns.TypeA), "1.2.1.2", "client1", "altName"))
Expect(resp.Reason).Should(Equal("BLOCKED (gr1)"))
Expect(resp.Res.Answer).Should(BeDNSRecord("domain1.com.", dns.TypeA, 21600, "0.0.0.0"))
})
It("should block query if domain is in another group too", func() {
resp, err = sut.Resolve(newRequestWithClient("blocked2.com.", dns.Type(dns.TypeA), "1.2.1.2", "client1", "altName"))
Expect(resp.Reason).Should(Equal("BLOCKED (gr2)"))
Expect(resp.Res.Answer).Should(BeDNSRecord("blocked2.com.", dns.TypeA, 21600, "0.0.0.0"))
})
})
When("Client name matches wildcard", func() {
It("should block query if domain is in one group", func() {
resp, err = sut.Resolve(newRequestWithClient("domain1.com.", dns.Type(dns.TypeA), "1.2.1.2", "wildcard1name"))
Expect(resp.Reason).Should(Equal("BLOCKED (gr1)"))
Expect(resp.Res.Answer).Should(BeDNSRecord("domain1.com.", dns.TypeA, 21600, "0.0.0.0"))
})
})
When("Default group is defined", func() {
It("should block domains from default group for each client", func() {
resp, err = sut.Resolve(newRequestWithClient("blocked3.com.", dns.Type(dns.TypeA), "1.2.1.2", "unknown"))
Expect(resp.Reason).Should(Equal("BLOCKED (defaultGroup)"))
Expect(resp.Res.Answer).Should(BeDNSRecord("blocked3.com.", dns.TypeA, 21600, "0.0.0.0"))
})
})
When("BlockType is NxDomain", func() {
BeforeEach(func() {
sutConfig = config.BlockingConfig{
BlockTTL: config.Duration(time.Minute),
BlackLists: map[string][]string{
"defaultGroup": {defaultGroupFile.Path},
},
ClientGroupsBlock: map[string][]string{
"default": {"defaultGroup"},
},
BlockType: "NxDomain",
}
})
JustBeforeEach(func() {
expectedReturnCode = dns.RcodeNameError
})
It("should return NXDOMAIN if query is blocked", func() {
resp, err = sut.Resolve(newRequestWithClient("blocked3.com.", dns.Type(dns.TypeA), "1.2.1.2", "unknown"))
Expect(resp.Reason).Should(Equal("BLOCKED (defaultGroup)"))
Expect(resp.Res.Rcode).Should(Equal(dns.RcodeNameError))
})
})
When("BlockTTL is set", func() {
BeforeEach(func() {
sutConfig = config.BlockingConfig{
BlockType: "ZEROIP",
BlackLists: map[string][]string{
"defaultGroup": {defaultGroupFile.Path},
},
ClientGroupsBlock: map[string][]string{
"default": {"defaultGroup"},
},
BlockTTL: config.Duration(time.Second * 1234),
}
})
It("should return answer with specified TTL", func() {
resp, err = sut.Resolve(newRequestWithClient("blocked3.com.", dns.Type(dns.TypeA), "1.2.1.2", "unknown"))
Expect(resp.Reason).Should(Equal("BLOCKED (defaultGroup)"))
Expect(resp.Res.Answer).Should(BeDNSRecord("blocked3.com.", dns.TypeA, 1234, "0.0.0.0"))
})
When("BlockType is custom IP", func() {
BeforeEach(func() {
sutConfig.BlockType = "12.12.12.12"
})
It("should return custom IP with specified TTL", func() {
resp, err = sut.Resolve(newRequestWithClient("blocked3.com.", dns.Type(dns.TypeA), "1.2.1.2", "unknown"))
Expect(resp.Reason).Should(Equal("BLOCKED (defaultGroup)"))
Expect(resp.Res.Answer).Should(BeDNSRecord("blocked3.com.", dns.TypeA, 1234, "12.12.12.12"))
})
})
})
When("BlockType is custom IP", func() {
BeforeEach(func() {
sutConfig = config.BlockingConfig{
BlockTTL: config.Duration(6 * time.Hour),
BlackLists: map[string][]string{
"defaultGroup": {defaultGroupFile.Path},
},
ClientGroupsBlock: map[string][]string{
"default": {"defaultGroup"},
},
BlockType: "12.12.12.12, 2001:0db8:85a3:0000:0000:8a2e:0370:7334",
}
})
It("should return ipv4 address for A query if query is blocked", func() {
resp, err = sut.Resolve(newRequestWithClient("blocked3.com.", dns.Type(dns.TypeA), "1.2.1.2", "unknown"))
Expect(resp.Reason).Should(Equal("BLOCKED (defaultGroup)"))
Expect(resp.Res.Answer).Should(BeDNSRecord("blocked3.com.", dns.TypeA, 21600, "12.12.12.12"))
})
It("should return ipv6 address for AAAA query if query is blocked", func() {
resp, err = sut.Resolve(newRequestWithClient("blocked3.com.", dns.Type(dns.TypeAAAA), "1.2.1.2", "unknown"))
Expect(resp.Reason).Should(Equal("BLOCKED (defaultGroup)"))
Expect(resp.Res.Answer).Should(BeDNSRecord("blocked3.com.", dns.TypeAAAA, 21600, "2001:db8:85a3::8a2e:370:7334"))
})
})
When("BlockType is custom IP only for ipv4", func() {
BeforeEach(func() {
sutConfig = config.BlockingConfig{
BlackLists: map[string][]string{
"defaultGroup": {defaultGroupFile.Path},
},
ClientGroupsBlock: map[string][]string{
"default": {"defaultGroup"},
},
BlockType: "12.12.12.12",
BlockTTL: config.Duration(6 * time.Hour),
}
})
It("should use fallback for ipv6 and return zero ip", func() {
resp, err = sut.Resolve(newRequestWithClient("blocked3.com.", dns.Type(dns.TypeAAAA), "1.2.1.2", "unknown"))
Expect(resp.Reason).Should(Equal("BLOCKED (defaultGroup)"))
Expect(resp.Res.Answer).Should(BeDNSRecord("blocked3.com.", dns.TypeAAAA, 21600, "::"))
})
})
When("Blacklist contains IP", func() {
When("IP4", func() {
BeforeEach(func() {
// return defined IP as response
mockAnswer, _ = util.NewMsgWithAnswer("example.com.", 300, dns.Type(dns.TypeA), "123.145.123.145")
})
It("should block query, if lookup result contains blacklisted IP", func() {
resp, err = sut.Resolve(newRequestWithClient("example.com.", dns.Type(dns.TypeA), "1.2.1.2", "unknown"))
Expect(resp.Reason).Should(Equal("BLOCKED IP (defaultGroup)"))
Expect(resp.Res.Answer).Should(BeDNSRecord("example.com.", dns.TypeA, 21600, "0.0.0.0"))
})
})
When("IP6", func() {
BeforeEach(func() {
// return defined IP as response
mockAnswer, _ = util.NewMsgWithAnswer(
"example.com.", 300,
dns.Type(dns.TypeAAAA), "2001:0db8:85a3:08d3::0370:7344",
)
})
It("should block query, if lookup result contains blacklisted IP", func() {
resp, err = sut.Resolve(newRequestWithClient("example.com.", dns.Type(dns.TypeAAAA), "1.2.1.2", "unknown"))
Expect(resp.Reason).Should(Equal("BLOCKED IP (defaultGroup)"))
Expect(resp.Res.Answer).Should(BeDNSRecord("example.com.", dns.TypeAAAA, 21600, "::"))
})
})
})
When("blacklist contains domain which is CNAME in response", func() {
BeforeEach(func() {
// reconfigure mock, to return CNAMEs
rr1, _ := dns.NewRR("example.com 300 IN CNAME domain.com")
rr2, _ := dns.NewRR("domain.com 300 IN CNAME badcnamedomain.com")
rr3, _ := dns.NewRR("badcnamedomain.com 300 IN A 125.125.125.125")
mockAnswer = new(dns.Msg)
mockAnswer.Answer = []dns.RR{rr1, rr2, rr3}
})
It("should block the query, if response contains a CNAME with domain on a blacklist", func() {
resp, err = sut.Resolve(newRequestWithClient("example.com.", dns.Type(dns.TypeA), "1.2.1.2", "unknown"))
Expect(resp.Reason).Should(Equal("BLOCKED CNAME (defaultGroup)"))
Expect(resp.Res.Answer).Should(BeDNSRecord("example.com.", dns.TypeA, 21600, "0.0.0.0"))
})
})
})
Describe("Whitelisting", func() {
When("Requested domain is on black and white list", func() {
BeforeEach(func() {
sutConfig = config.BlockingConfig{
BlockType: "ZEROIP",
BlockTTL: config.Duration(time.Minute),
BlackLists: map[string][]string{"gr1": {group1File.Path}},
WhiteLists: map[string][]string{"gr1": {group1File.Path}},
ClientGroupsBlock: map[string][]string{
"default": {"gr1"},
},
}
})
It("Should not be blocked", func() {
resp, err = sut.Resolve(newRequestWithClient("domain1.com.", dns.Type(dns.TypeA), "1.2.1.2", "unknown"))
// was delegated to next resolver
m.AssertExpectations(GinkgoT())
})
})
When("Only whitelist is defined", func() {
BeforeEach(func() {
sutConfig = config.BlockingConfig{
BlockType: "zeroIP",
BlockTTL: config.Duration(60 * time.Second),
WhiteLists: map[string][]string{
"gr1": {group1File.Path},
"gr2": {group2File.Path},
},
ClientGroupsBlock: map[string][]string{
"default": {"gr1"},
"one-client": {"gr1"},
"two-client": {"gr2"},
"all-client": {"gr1", "gr2"},
},
}
})
It("should block everything else except domains on the white list with default group", func() {
By("querying domain on the whitelist", func() {
resp, err = sut.Resolve(newRequestWithClient("domain1.com.", dns.Type(dns.TypeA), "1.2.1.2", "unknown"))
// was delegated to next resolver
m.AssertExpectations(GinkgoT())
})
By("querying another domain, which is not on the whitelist", func() {
resp, err = sut.Resolve(newRequestWithClient("google.com.", dns.Type(dns.TypeA), "1.2.1.2", "unknown"))
Expect(m.Calls).Should(HaveLen(1))
Expect(resp.Reason).Should(Equal("BLOCKED (WHITELIST ONLY)"))
})
})
It("should block everything else except domains on the white list "+
"if multiple white list only groups are defined", func() {
By("querying domain on the whitelist", func() {
resp, err = sut.Resolve(newRequestWithClient("domain1.com.", dns.Type(dns.TypeA), "1.2.1.2", "one-client"))
// was delegated to next resolver
m.AssertExpectations(GinkgoT())
})
By("querying another domain, which is not on the whitelist", func() {
resp, err = sut.Resolve(newRequestWithClient("blocked2.com.", dns.Type(dns.TypeA), "1.2.1.2", "one-client"))
Expect(m.Calls).Should(HaveLen(1))
Expect(resp.Reason).Should(Equal("BLOCKED (WHITELIST ONLY)"))
})
})
It("should block everything else except domains on the white list "+
"if multiple white list only groups are defined", func() {
By("querying domain on the whitelist group 1", func() {
resp, err = sut.Resolve(newRequestWithClient("domain1.com.", dns.Type(dns.TypeA), "1.2.1.2", "all-client"))
// was delegated to next resolver
m.AssertExpectations(GinkgoT())
})
By("querying another domain, which is in the whitelist group 1", func() {
resp, err = sut.Resolve(newRequestWithClient("blocked2.com.", dns.Type(dns.TypeA), "1.2.1.2", "all-client"))
Expect(m.Calls).Should(HaveLen(2))
})
})
})
When("IP address is on black and white list", func() {
BeforeEach(func() {
sutConfig = config.BlockingConfig{
BlockType: "ZEROIP",
BlockTTL: config.Duration(time.Minute),
BlackLists: map[string][]string{"gr1": {group1File.Path}},
WhiteLists: map[string][]string{"gr1": {defaultGroupFile.Path}},
ClientGroupsBlock: map[string][]string{
"default": {"gr1"},
},
}
mockAnswer, _ = util.NewMsgWithAnswer("example.com.", 300, dns.Type(dns.TypeA), "123.145.123.145")
})
It("should not block if DNS answer contains IP from the white list", func() {
resp, err = sut.Resolve(newRequestWithClient("example.com.", dns.Type(dns.TypeA), "1.2.1.2", "unknown"))
// was delegated to next resolver
m.AssertExpectations(GinkgoT())
})
})
})
Describe("Delegate request to next resolver", func() {
BeforeEach(func() {
sutConfig = config.BlockingConfig{
BlockType: "ZEROIP",
BlockTTL: config.Duration(time.Minute),
BlackLists: map[string][]string{"gr1": {group1File.Path}},
ClientGroupsBlock: map[string][]string{
"default": {"gr1"},
},
}
})
AfterEach(func() {
// was delegated to next resolver
m.AssertExpectations(GinkgoT())
Expect(resp.RType).Should(Equal(ResponseTypeRESOLVED))
})
When("domain is not on the black list", func() {
It("should delegate to next resolver", func() {
resp, err = sut.Resolve(newRequestWithClient("example.com.", dns.Type(dns.TypeA), "1.2.1.2", "unknown"))
})
})
When("no lists defined", func() {
BeforeEach(func() {
sutConfig = config.BlockingConfig{
BlockType: "ZEROIP",
BlockTTL: config.Duration(time.Minute),
}
})
It("should delegate to next resolver", func() {
resp, err = sut.Resolve(newRequestWithClient("example.com.", dns.Type(dns.TypeA), "1.2.1.2", "unknown"))
})
})
})
Describe("Control status via API", func() {
BeforeEach(func() {
sutConfig = config.BlockingConfig{
BlackLists: map[string][]string{
"defaultGroup": {defaultGroupFile.Path},
"group1": {group1File.Path},
},
ClientGroupsBlock: map[string][]string{
"default": {"defaultGroup", "group1"},
},
BlockType: "ZeroIP",
}
})
When("Disable blocking is called", func() {
It("no query should be blocked", func() {
By("Perform query to ensure that the blocking status is active (defaultGroup)", func() {
resp, err := sut.Resolve(newRequestWithClient("blocked3.com.", dns.Type(dns.TypeA), "1.2.1.2", "unknown"))
Expect(err).Should(Succeed())
Expect(resp.RType).Should(Equal(ResponseTypeBLOCKED))
})
By("Perform query to ensure that the blocking status is active (group1)", func() {
resp, err := sut.Resolve(newRequestWithClient("domain1.com.", dns.Type(dns.TypeA), "1.2.1.2", "unknown"))
Expect(err).Should(Succeed())
Expect(resp.RType).Should(Equal(ResponseTypeBLOCKED))
})
By("Calling Rest API to deactivate all groups", func() {
err := sut.DisableBlocking(0, []string{})
Expect(err).Should(Succeed())
})
By("perform the same query again (defaultGroup)", func() {
// now is blocking disabled, query the url again
resp, err := sut.Resolve(newRequestWithClient("blocked3.com.", dns.Type(dns.TypeA), "1.2.1.2", "unknown"))
Expect(err).Should(Succeed())
Expect(resp.RType).Should(Equal(ResponseTypeRESOLVED))
m.AssertExpectations(GinkgoT())
m.AssertNumberOfCalls(GinkgoT(), "Resolve", 1)
})
By("perform the same query again (group1)", func() {
// now is blocking disabled, query the url again
resp, err := sut.Resolve(newRequestWithClient("domain1.com.", dns.Type(dns.TypeA), "1.2.1.2", "unknown"))
Expect(err).Should(Succeed())
Expect(resp.RType).Should(Equal(ResponseTypeRESOLVED))
m.AssertExpectations(GinkgoT())
m.AssertNumberOfCalls(GinkgoT(), "Resolve", 2)
})
By("Calling Rest API to deactivate only defaultGroup", func() {
err := sut.DisableBlocking(0, []string{"defaultGroup"})
Expect(err).Should(Succeed())
})
By("perform the same query again (defaultGroup)", func() {
// now is blocking disabled, query the url again
resp, err := sut.Resolve(newRequestWithClient("blocked3.com.", dns.Type(dns.TypeA), "1.2.1.2", "unknown"))
Expect(err).Should(Succeed())
Expect(resp.RType).Should(Equal(ResponseTypeRESOLVED))
m.AssertExpectations(GinkgoT())
m.AssertNumberOfCalls(GinkgoT(), "Resolve", 3)
})
By("Perform query to ensure that the blocking status is active (group1)", func() {
resp, err := sut.Resolve(newRequestWithClient("domain1.com.", dns.Type(dns.TypeA), "1.2.1.2", "unknown"))
Expect(err).Should(Succeed())
Expect(resp.RType).Should(Equal(ResponseTypeBLOCKED))
})
})
})
When("Disable blocking for all groups is called with a duration parameter", func() {
It("No query should be blocked only for passed amount of time", func() {
By("Perform query to ensure that the blocking status is active (defaultGroup)", func() {
resp, err := sut.Resolve(newRequestWithClient("blocked3.com.", dns.Type(dns.TypeA), "1.2.1.2", "unknown"))
Expect(err).Should(Succeed())
Expect(resp.RType).Should(Equal(ResponseTypeBLOCKED))
})
By("Perform query to ensure that the blocking status is active (group1)", func() {
resp, err := sut.Resolve(newRequestWithClient("domain1.com.", dns.Type(dns.TypeA), "1.2.1.2", "unknown"))
Expect(err).Should(Succeed())
Expect(resp.RType).Should(Equal(ResponseTypeBLOCKED))
})
By("Calling Rest API to deactivate blocking for 0.5 sec", func() {
enabled := true
err := Bus().SubscribeOnce(BlockingEnabledEvent, func(state bool) {
enabled = state
})
Expect(err).Should(Succeed())
err = sut.DisableBlocking(500*time.Millisecond, []string{})
Expect(err).Should(Succeed())
Expect(enabled).Should(BeFalse())
})
By("perform the same query again to ensure that this query will not be blocked (defaultGroup)", func() {
// now is blocking disabled, query the url again
resp, err := sut.Resolve(newRequestWithClient("blocked3.com.", dns.Type(dns.TypeA), "1.2.1.2", "unknown"))
Expect(err).Should(Succeed())
Expect(resp.RType).Should(Equal(ResponseTypeRESOLVED))
m.AssertExpectations(GinkgoT())
m.AssertNumberOfCalls(GinkgoT(), "Resolve", 1)
})
By("perform the same query again to ensure that this query will not be blocked (group1)", func() {
// now is blocking disabled, query the url again
resp, err := sut.Resolve(newRequestWithClient("domain1.com.", dns.Type(dns.TypeA), "1.2.1.2", "unknown"))
Expect(err).Should(Succeed())
Expect(resp.RType).Should(Equal(ResponseTypeRESOLVED))
m.AssertExpectations(GinkgoT())
m.AssertNumberOfCalls(GinkgoT(), "Resolve", 2)
})
By("Wait 1 sec and perform the same query again, should be blocked now", func() {
enabled := make(chan bool, 1)
_ = Bus().SubscribeOnce(BlockingEnabledEvent, func(state bool) {
enabled <- state
})
// wait 1 sec
Eventually(enabled, "1s").Should(Receive(BeTrue()))
resp, err := sut.Resolve(newRequestWithClient("blocked3.com.", dns.Type(dns.TypeA), "1.2.1.2", "unknown"))
Expect(err).Should(Succeed())
Expect(resp.RType).Should(Equal(ResponseTypeBLOCKED))
resp, err = sut.Resolve(newRequestWithClient("domain1.com.", dns.Type(dns.TypeA), "1.2.1.2", "unknown"))
Expect(err).Should(Succeed())
Expect(resp.RType).Should(Equal(ResponseTypeBLOCKED))
})
})
})
When("Disable blocking for one group is called with a duration parameter", func() {
It("No query should be blocked only for passed amount of time", func() {
By("Perform query to ensure that the blocking status is active (defaultGroup)", func() {
resp, err := sut.Resolve(newRequestWithClient("blocked3.com.", dns.Type(dns.TypeA), "1.2.1.2", "unknown"))
Expect(err).Should(Succeed())
Expect(resp.RType).Should(Equal(ResponseTypeBLOCKED))
})
By("Perform query to ensure that the blocking status is active (group1)", func() {
resp, err := sut.Resolve(newRequestWithClient("domain1.com.", dns.Type(dns.TypeA), "1.2.1.2", "unknown"))
Expect(err).Should(Succeed())
Expect(resp.RType).Should(Equal(ResponseTypeBLOCKED))
})
By("Calling Rest API to deactivate blocking for one group for 0.5 sec", func() {
enabled := make(chan bool, 1)
err := Bus().SubscribeOnce(BlockingEnabledEvent, func(state bool) {
enabled <- false
})
Expect(err).Should(Succeed())
err = sut.DisableBlocking(500*time.Millisecond, []string{"group1"})
Expect(err).Should(Succeed())
Eventually(enabled, "1s").Should(Receive(BeFalse()))
})
By("perform the same query again to ensure that this query will not be blocked (defaultGroup)", func() {
// now is blocking disabled, query the url again
resp, err := sut.Resolve(newRequestWithClient("blocked3.com.", dns.Type(dns.TypeA), "1.2.1.2", "unknown"))
Expect(err).Should(Succeed())
Expect(resp.RType).Should(Equal(ResponseTypeBLOCKED))
})
By("perform the same query again to ensure that this query will not be blocked (group1)", func() {
// now is blocking disabled, query the url again
resp, err := sut.Resolve(newRequestWithClient("domain1.com.", dns.Type(dns.TypeA), "1.2.1.2", "unknown"))
Expect(err).Should(Succeed())
Expect(resp.RType).Should(Equal(ResponseTypeRESOLVED))
m.AssertExpectations(GinkgoT())
m.AssertNumberOfCalls(GinkgoT(), "Resolve", 1)
})
By("Wait 1 sec and perform the same query again, should be blocked now", func() {
enabled := make(chan bool, 1)
_ = Bus().SubscribeOnce(BlockingEnabledEvent, func(state bool) {
enabled <- state
})
// wait 1 sec
Eventually(enabled, "1s").Should(Receive(BeTrue()))
resp, err := sut.Resolve(newRequestWithClient("blocked3.com.", dns.Type(dns.TypeA), "1.2.1.2", "unknown"))
Expect(err).Should(Succeed())
Expect(resp.RType).Should(Equal(ResponseTypeBLOCKED))
resp, err = sut.Resolve(newRequestWithClient("domain1.com.", dns.Type(dns.TypeA), "1.2.1.2", "unknown"))
Expect(err).Should(Succeed())
Expect(resp.RType).Should(Equal(ResponseTypeBLOCKED))
})
})
})
When("Disable blocking is called with wrong group name", func() {
It("should fail", func() {
err := sut.DisableBlocking(500*time.Millisecond, []string{"unknownGroupName"})
Expect(err).Should(HaveOccurred())
})
})
When("Blocking status is called", func() {
It("should return correct status", func() {
By("enable blocking via API", func() {
sut.EnableBlocking()
})
By("Query blocking status via API should return 'enabled'", func() {
result := sut.BlockingStatus()
Expect(result.Enabled).Should(BeTrue())
})
By("disable blocking via API", func() {
err := sut.DisableBlocking(500*time.Millisecond, []string{})
Expect(err).Should(Succeed())
})
By("Query blocking status via API again should return 'disabled'", func() {
result := sut.BlockingStatus()
Expect(result.Enabled).Should(BeFalse())
})
})
})
})
Describe("Configuration output", func() {
When("resolver is enabled", func() {
BeforeEach(func() {
sutConfig = config.BlockingConfig{
BlockType: "ZEROIP",
BlockTTL: config.Duration(time.Minute),
BlackLists: map[string][]string{"gr1": {group1File.Path}},
ClientGroupsBlock: map[string][]string{
"default": {"gr1"},
},
}
})
It("should return configuration", func() {
c := sut.Configuration()
Expect(len(c)).Should(BeNumerically(">", 1))
})
})
When("resolver is disabled", func() {
BeforeEach(func() {
sutConfig = config.BlockingConfig{}
})
})
It("should return 'disabled''", func() {
c := sut.Configuration()
Expect(c).Should(HaveLen(1))
Expect(c).Should(Equal([]string{"deactivated"}))
})
})
Describe("Create resolver with wrong parameter", func() {
When("Wrong blockType is used", func() {
It("should return error", func() {
_, err := NewBlockingResolver(config.BlockingConfig{
BlockType: "wrong",
}, nil, skipUpstreamCheck)
Expect(err).Should(
MatchError("unknown blockType 'wrong', please use one of: ZeroIP, NxDomain or specify destination IP address(es)"))
})
})
When("startStrategy is failOnError", func() {
It("should fail if lists can't be downloaded", func() {
_, err := NewBlockingResolver(config.BlockingConfig{
BlackLists: map[string][]string{"gr1": {"wrongPath"}},
WhiteLists: map[string][]string{"whitelist": {"wrongPath"}},
StartStrategy: config.StartStrategyTypeFailOnError,
BlockType: "zeroIp",
}, nil, skipUpstreamCheck)
Expect(err).Should(HaveOccurred())
})
})
})
Describe("Redis is configured", func() {
var redisServer *miniredis.Miniredis
var redisClient *redis.Client
JustBeforeEach(func() {
redisServer, err = miniredis.Run()
Expect(err).Should(Succeed())
var rcfg config.RedisConfig
err = defaults.Set(&rcfg)
Expect(err).Should(Succeed())
rcfg.Address = redisServer.Addr()
redisClient, err = redis.New(&rcfg)
Expect(err).Should(Succeed())
Expect(redisClient).ShouldNot(BeNil())
sutConfig = config.BlockingConfig{
BlockType: "ZEROIP",
BlockTTL: config.Duration(time.Minute),
}
tmp, err2 := NewBlockingResolver(sutConfig, redisClient, skipUpstreamCheck)
Expect(err2).Should(Succeed())
sut = tmp.(*BlockingResolver)
})
JustAfterEach(func() {
redisServer.Close()
})
When("disable", func() {
It("should return disable", func() {
sut.EnableBlocking()
redisMockMsg := &redis.EnabledMessage{
State: false,
}
redisClient.EnabledChannel <- redisMockMsg
Eventually(func() bool {
return sut.BlockingStatus().Enabled
}, "5s").Should(BeFalse())
})
})
When("disable", func() {
It("should return disable", func() {
sut.EnableBlocking()
redisMockMsg := &redis.EnabledMessage{
State: false,
Groups: []string{"unknown"},
}
redisClient.EnabledChannel <- redisMockMsg
Eventually(func() bool {
return sut.BlockingStatus().Enabled
}, "5s").Should(BeTrue())
})
})
When("enable", func() {
It("should return enable", func() {
err = sut.DisableBlocking(time.Hour, []string{})
Expect(err).Should(Succeed())
redisMockMsg := &redis.EnabledMessage{
State: true,
}
redisClient.EnabledChannel <- redisMockMsg
Eventually(func() bool {
return sut.BlockingStatus().Enabled
}, "5s").Should(BeTrue())
})
})
})
})
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