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Merge pull request #26 from fluxcd/nexus
Nexus Repository Manager support
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,84 @@ | ||
| package main | ||
|
|
||
| import ( | ||
| "crypto/hmac" | ||
| "crypto/sha1" | ||
| "encoding/hex" | ||
| "encoding/json" | ||
| "fmt" | ||
| "io/ioutil" | ||
| "net/http" | ||
| "strings" | ||
|
|
||
| fluxapi "github.com/fluxcd/flux/pkg/api" | ||
| ) | ||
|
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| const Nexus = "Nexus" | ||
|
|
||
| func init() { | ||
| Sources[Nexus] = handleNexus | ||
| } | ||
|
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| func handleNexus(s fluxapi.Server, key []byte, w http.ResponseWriter, r *http.Request, e Endpoint) { | ||
| if webhookID := r.Header.Get("X-Nexus-Webhook-Id"); webhookID != "rm:repository:component" { | ||
| http.Error(w, "Unsupported webhook ID", http.StatusBadRequest) | ||
| log(Nexus, "unsupported webhook ID:", webhookID) | ||
| return | ||
| } | ||
|
|
||
| signature := r.Header.Get("X-Nexus-Webhook-Signature") | ||
| if len(signature) == 0 { | ||
| http.Error(w, "Signature is missing from header", http.StatusUnauthorized) | ||
| log(Nexus, "missing X-Nexus-Webhook-Signature header") | ||
| return | ||
| } | ||
|
|
||
| b, err := ioutil.ReadAll(r.Body) | ||
| if err != nil { | ||
| http.Error(w, "Cannot read payload", http.StatusBadRequest) | ||
| log(Nexus, fmt.Errorf("could not read payload: %v", err)) | ||
| return | ||
| } | ||
|
|
||
| if !verifyHmacSignature(key, signature, b) { | ||
| http.Error(w, "Invalid signature", http.StatusUnauthorized) | ||
| log(Nexus, "invalid X-Nexus-Webhook-Signature") | ||
| return | ||
| } | ||
|
|
||
| type payload struct { | ||
| Action string `json:"action"` | ||
| Component struct { | ||
| Format string `json:"format"` | ||
| Name string `json:"name"` | ||
| } `json:"component"` | ||
| } | ||
|
|
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| var p payload | ||
| if err := json.Unmarshal(b, &p); err != nil { | ||
| http.Error(w, "Cannot decode webhook payload", http.StatusBadRequest) | ||
| log(Nexus, err.Error()) | ||
| return | ||
| } | ||
|
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| if p.Component.Format != "docker" || p.Action != "CREATED" { | ||
| http.Error(w, "Ignoring component format", http.StatusBadRequest) | ||
| log(Nexus, "ignoring action:", p.Action, "for asset format:", p.Component.Format) | ||
| return | ||
| } | ||
|
|
||
| // The request Nexus makes contains no information about the | ||
| // hostname of the Docker registry. | ||
| img := p.Component.Name | ||
| if e.RegistryHost != "" { | ||
| img = strings.TrimRight(e.RegistryHost, "/") + "/" + img | ||
| } | ||
| doImageNotify(s, w, r, img) | ||
| } | ||
|
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| func verifyHmacSignature(key []byte, signature string, payload []byte) bool { | ||
| mac := hmac.New(sha1.New, key) | ||
| _, _ = mac.Write(payload) | ||
| expectedMAC := hex.EncodeToString(mac.Sum(nil)) | ||
| return hmac.Equal([]byte(signature), []byte(expectedMAC)) | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
|
|
@@ -243,6 +243,47 @@ func Test_Harbor(t *testing.T) { | |
| assert.Equal(t, 401, res.StatusCode) | ||
| } | ||
|
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| const expectedNexus = `{"Kind":"image","Source":{"Name":{"Domain":"container.example.com","Image":"app1/alpine"}}}` | ||
|
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| func Test_Nexus(t *testing.T) { | ||
| var called bool | ||
| downstream := newDownstream(t, expectedNexus, &called) | ||
| defer downstream.Close() | ||
|
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| endpoint := Endpoint{Source: Nexus, KeyPath: "nexus_key", RegistryHost: "container.example.com"} | ||
| fp, handler, err := HandlerFromEndpoint("test/fixtures", downstream.URL, endpoint) | ||
| assert.NoError(t, err) | ||
|
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| hookServer := httptest.NewTLSServer(handler) | ||
| defer hookServer.Close() | ||
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| payload := loadFixture(t, "nexus_payload") | ||
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| c := hookServer.Client() | ||
| req, err := http.NewRequest("POST", hookServer.URL+"/hook/"+fp, bytes.NewReader(payload)) | ||
| assert.NoError(t, err) | ||
| req.Header.Set("X-Nexus-Webhook-Id", "rm:repository:component") | ||
| req.Header.Set("X-Nexus-Webhook-Delivery", "bd9e6aef-0e27-4570-980d-f639c49ab5ed") | ||
| req.Header.Set("X-Nexus-Webhook-Signature", "d06eea380d4631e8c1180b689d10d9ba83ab68f6") | ||
|
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| res, err := c.Do(req) | ||
| assert.NoError(t, err) | ||
| assert.True(t, called) | ||
| assert.Equal(t, 200, res.StatusCode) | ||
|
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| // check that bogus signature is rejected | ||
| called = false | ||
| req, err = http.NewRequest("POST", hookServer.URL+"/hook/"+fp, bytes.NewReader(payload)) | ||
| assert.NoError(t, err) | ||
| req.Header.Set("X-Nexus-Webhook-Id", "rm:repository:component") | ||
| req.Header.Set("X-Nexus-Webhook-Delivery", "bd9e6aef-0e27-4570-980d-f639c49ab5ed") | ||
| req.Header.Set("X-Nexus-Webhook-Signature", "BOGUS") | ||
| res, err = c.Do(req) | ||
| assert.NoError(t, err) | ||
| assert.False(t, called) | ||
| assert.Equal(t, 401, res.StatusCode) | ||
| } | ||
|
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| const expectedBitbucketCloud = `{"Kind":"git","Source":{"URL":"[email protected]:mbridgen/dummy.git","Branch":"master"}}` | ||
|
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| func Test_BitbucketCloud(t *testing.T) { | ||
|
|
||
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1 @@ | ||
| gk0qp4u98xy0vntojv81i8zcjr4zw7xd6c4ugzad |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1 @@ | ||
| {"timestamp":"2020-04-05T21:49:44.219+0000","nodeId":"8C4F3E91-CD46AFE0-61B8403D-94526884-19AC4E06","initiator":"admin/127.0.0.1","repositoryName":"app1","action":"CREATED","component":{"id":"c770169c0b2e3ed8357368b43d4da3d8","componentId":"YXBwMTpjNzcwMTY5YzBiMmUzZWQ4MzU3MzY4YjQzZDRkYTNkOA","format":"docker","name":"app1/alpine","version":"3.4"}} |