feat(api): add PagerDuty alert channel integrations (#173)

With this change users can now do CRUD operations of PagerDuty
Alert Channels (Integrations), here is a basic usage:

Initialize a new `PagerDutyAlertChannel` struct, then use the new
instance to do CRUD operations.

```go
client, err := api.NewClient("account")
if err != nil {
  return err
}

alert := api.NewPagerDutyAlertChannel("foo",
  api.PagerDutyData{
    IntegrationKey:   "1234abc8901abc567abc123abc78e012",
    MinAlertSeverity: api.MediumAlertLevel,
  },
)

client.Integrations.CreatePagerDutyAlertChannel(alert)
```

Signed-off-by: Salim Afiune Maya <[email protected]>

api/_examples/pagerduty-alert-channel/main.go

@@ -0,0 +1,30 @@
+package main
+
+import (
+	"fmt"
+	"log"
+
+	"github.com/lacework/go-sdk/api"
+)
+
+func main() {
+	lacework, err := api.NewClient("account", api.WithApiKeys("KEY", "SECRET"))
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	alert := api.NewPagerDutyAlertChannel("pagerduty-alert-from-golang",
+		api.PagerDutyData{
+			IntegrationKey:   "1234abc8901abc567abc123abc78e012",
+			MinAlertSeverity: 5,
+		},
+	)
+
+	response, err := lacework.Integrations.CreatePagerDutyAlertChannel(alert)
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	// Output: PagerDuty alert channel created: THE-INTEGRATION-GUID
+	fmt.Printf("PagerDuty alert channel created: %s", response.Data[0].IntgGuid)
+}

api/integration_alert_channels_pagerduty.go

@@ -0,0 +1,101 @@
+//
+// Author:: Salim Afiune Maya (<[email protected]>)
+// Copyright:: Copyright 2020, Lacework Inc.
+// License:: Apache License, Version 2.0
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+package api
+
+// NewPagerDutyAlertChannel returns an instance of PagerDutyAlertChannel
+// with the provided name and data.
+//
+// Basic usage: Initialize a new PagerDutyAlertChannel struct, then
+//              use the new instance to do CRUD operations
+//
+//   client, err := api.NewClient("account")
+//   if err != nil {
+//     return err
+//   }
+//
+//   pagerduty := api.NewPagerDutyAlertChannel("foo",
+//     api.PagerDutyData{
+//       IntegrationKey:   "1234abc8901abc567abc123abc78e012",
+//       MinAlertSeverity: api.AllAlertLevel,
+//     },
+//   )
+//
+//   client.Integrations.CreatePagerDutyAlertChannel(pagerduty)
+//
+func NewPagerDutyAlertChannel(name string, data PagerDutyData) PagerDutyAlertChannel {
+	return PagerDutyAlertChannel{
+		commonIntegrationData: commonIntegrationData{
+			Name:    name,
+			Type:    PagerDutyIntegration.String(),
+			Enabled: 1,
+		},
+		Data: data,
+	}
+}
+
+// CreatePagerDutyAlertChannel creates a pager duty alert channel integration on the Lacework Server
+func (svc *IntegrationsService) CreatePagerDutyAlertChannel(integration PagerDutyAlertChannel) (
+	response PagerDutyAlertChannelResponse,
+	err error,
+) {
+	err = svc.create(integration, &response)
+	return
+}
+
+// GetPagerDutyAlertChannel gets a pager duty alert channel integration that matches with
+// the provided integration guid on the Lacework Server
+func (svc *IntegrationsService) GetPagerDutyAlertChannel(guid string) (
+	response PagerDutyAlertChannelResponse,
+	err error,
+) {
+	err = svc.get(guid, &response)
+	return
+}
+
+// UpdatePagerDutyAlertChannel updates a single pager duty alert channel integration
+func (svc *IntegrationsService) UpdatePagerDutyAlertChannel(data PagerDutyAlertChannel) (
+	response PagerDutyAlertChannelResponse,
+	err error,
+) {
+	err = svc.update(data.IntgGuid, data, &response)
+	return
+}
+
+// ListPagerDutyAlertChannel lists the PAGER_DUTY_API external integrations available on the Lacework Server
+func (svc *IntegrationsService) ListPagerDutyAlertChannel() (response PagerDutyAlertChannelResponse, err error) {
+	err = svc.listByType(PagerDutyIntegration, &response)
+	return
+}
+
+type PagerDutyAlertChannelResponse struct {
+	Data    []PagerDutyAlertChannel `json:"data"`
+	Ok      bool                    `json:"ok"`
+	Message string                  `json:"message"`
+}
+
+type PagerDutyAlertChannel struct {
+	commonIntegrationData
+	Data PagerDutyData `json:"DATA"`
+}
+
+type PagerDutyData struct {
+	IssueGrouping    string     `json:"ISSUE_GROUPING,omitempty" mapstructure:"ISSUE_GROUPING"`
+	IntegrationKey   string     `json:"API_INTG_KEY" mapstructure:"API_INTG_KEY"`
+	MinAlertSeverity AlertLevel `json:"MIN_ALERT_SEVERITY,omitempty" mapstructure:"MIN_ALERT_SEVERITY"`
+}

api/integration_alert_channels_pagerduty_test.go

@@ -0,0 +1,252 @@
+//
+// Author:: Salim Afiune Maya (<[email protected]>)
+// Copyright:: Copyright 2020, Lacework Inc.
+// License:: Apache License, Version 2.0
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+package api_test
+
+import (
+	"fmt"
+	"net/http"
+	"strings"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+
+	"github.com/lacework/go-sdk/api"
+	"github.com/lacework/go-sdk/internal/intgguid"
+	"github.com/lacework/go-sdk/internal/lacework"
+)
+
+func TestIntegrationsNewPagerDutyAlertChannel(t *testing.T) {
+	subject := api.NewPagerDutyAlertChannel("integration_name",
+		api.PagerDutyData{
+			IntegrationKey:   "1234567890abcd1234567890",
+			MinAlertSeverity: 3,
+		},
+	)
+	assert.Equal(t, api.PagerDutyIntegration.String(), subject.Type)
+	assert.Equal(t, api.MediumAlertLevel, subject.Data.MinAlertSeverity)
+}
+
+func TestIntegrationsCreatePagerDutyAlertChannel(t *testing.T) {
+	var (
+		intgGUID   = intgguid.New()
+		fakeServer = lacework.MockServer()
+	)
+	fakeServer.MockAPI("external/integrations", func(w http.ResponseWriter, r *http.Request) {
+		assert.Equal(t, "POST", r.Method, "CreatePagerDutyAlertChannel should be a POST method")
+
+		if assert.NotNil(t, r.Body) {
+			body := httpBodySniffer(r)
+			assert.Contains(t, body, "integration_name", "integration name is missing")
+			assert.Contains(t, body, "PAGER_DUTY_API", "wrong integration type")
+			assert.Contains(t, body, "1234567890abcd1234567890", "wrong integration_key")
+			assert.Contains(t, body, "MIN_ALERT_SEVERITY\":3", "wrong alert severity")
+			assert.Contains(t, body, "ENABLED\":1", "integration is not enabled")
+		}
+
+		fmt.Fprintf(w, pagerDutyIntegrationJsonResponse(intgGUID))
+	})
+	defer fakeServer.Close()
+
+	c, err := api.NewClient("test",
+		api.WithToken("TOKEN"),
+		api.WithURL(fakeServer.URL()),
+	)
+	assert.Nil(t, err)
+
+	data := api.NewPagerDutyAlertChannel("integration_name",
+		api.PagerDutyData{
+			IntegrationKey:   "1234567890abcd1234567890",
+			MinAlertSeverity: 3,
+		},
+	)
+	assert.Equal(t, "integration_name", data.Name, "PagerDuty integration name mismatch")
+	assert.Equal(t, "PAGER_DUTY_API", data.Type, "a new PagerDuty integration should match its type")
+	assert.Equal(t, 1, data.Enabled, "a new PagerDuty integration should be enabled")
+
+	response, err := c.Integrations.CreatePagerDutyAlertChannel(data)
+	assert.Nil(t, err)
+	assert.NotNil(t, response)
+	assert.True(t, response.Ok)
+	if assert.Equal(t, 1, len(response.Data)) {
+		resData := response.Data[0]
+		assert.Equal(t, intgGUID, resData.IntgGuid)
+		assert.Equal(t, "integration_name", resData.Name)
+		assert.True(t, resData.State.Ok)
+		assert.Equal(t, "1234567890abcd1234567890", resData.Data.IntegrationKey)
+		assert.Equal(t, api.AlertLevel(3), resData.Data.MinAlertSeverity)
+	}
+}
+
+func TestIntegrationsGetPagerDutyAlertChannel(t *testing.T) {
+	var (
+		intgGUID   = intgguid.New()
+		apiPath    = fmt.Sprintf("external/integrations/%s", intgGUID)
+		fakeServer = lacework.MockServer()
+	)
+	fakeServer.MockAPI(apiPath, func(w http.ResponseWriter, r *http.Request) {
+		assert.Equal(t, "GET", r.Method, "GetPagerDutyAlertChannel should be a GET method")
+		fmt.Fprintf(w, pagerDutyIntegrationJsonResponse(intgGUID))
+	})
+	defer fakeServer.Close()
+
+	c, err := api.NewClient("test",
+		api.WithToken("TOKEN"),
+		api.WithURL(fakeServer.URL()),
+	)
+	assert.Nil(t, err)
+
+	response, err := c.Integrations.GetPagerDutyAlertChannel(intgGUID)
+	assert.Nil(t, err)
+	assert.NotNil(t, response)
+	assert.True(t, response.Ok)
+	if assert.Equal(t, 1, len(response.Data)) {
+		resData := response.Data[0]
+		assert.Equal(t, intgGUID, resData.IntgGuid)
+		assert.Equal(t, "integration_name", resData.Name)
+		assert.True(t, resData.State.Ok)
+		assert.Equal(t, "1234567890abcd1234567890", resData.Data.IntegrationKey)
+		assert.Equal(t, api.AlertLevel(3), resData.Data.MinAlertSeverity)
+	}
+}
+
+func TestIntegrationsUpdatePagerDutyAlertChannel(t *testing.T) {
+	var (
+		intgGUID   = intgguid.New()
+		apiPath    = fmt.Sprintf("external/integrations/%s", intgGUID)
+		fakeServer = lacework.MockServer()
+	)
+	fakeServer.MockAPI(apiPath, func(w http.ResponseWriter, r *http.Request) {
+		assert.Equal(t, "PATCH", r.Method, "UpdatePagerDutyAlertChannel should be a PATCH method")
+
+		if assert.NotNil(t, r.Body) {
+			body := httpBodySniffer(r)
+			assert.Contains(t, body, intgGUID, "INTG_GUID missing")
+			assert.Contains(t, body, "integration_name", "integration name is missing")
+			assert.Contains(t, body, "PAGER_DUTY_API", "wrong integration type")
+			assert.Contains(t, body, "1234567890abcd1234567890", "wrong integration_key")
+			assert.Contains(t, body, "MIN_ALERT_SEVERITY\":3", "wrong alert severity")
+			assert.Contains(t, body, "ENABLED\":1", "integration is not enabled")
+		}
+
+		fmt.Fprintf(w, pagerDutyIntegrationJsonResponse(intgGUID))
+	})
+	defer fakeServer.Close()
+
+	c, err := api.NewClient("test",
+		api.WithToken("TOKEN"),
+		api.WithURL(fakeServer.URL()),
+	)
+	assert.Nil(t, err)
+
+	data := api.NewPagerDutyAlertChannel("integration_name",
+		api.PagerDutyData{
+			IntegrationKey:   "1234567890abcd1234567890",
+			MinAlertSeverity: 3,
+		},
+	)
+	assert.Equal(t, "integration_name", data.Name, "PagerDuty integration name mismatch")
+	assert.Equal(t, "PAGER_DUTY_API", data.Type, "a new PagerDuty integration should match its type")
+	assert.Equal(t, 1, data.Enabled, "a new PagerDuty integration should be enabled")
+	data.IntgGuid = intgGUID
+
+	response, err := c.Integrations.UpdatePagerDutyAlertChannel(data)
+	assert.Nil(t, err)
+	assert.NotNil(t, response)
+	assert.Equal(t, "SUCCESS", response.Message)
+	assert.Equal(t, 1, len(response.Data))
+	assert.Equal(t, intgGUID, response.Data[0].IntgGuid)
+}
+
+func TestIntegrationsListPagerDutyAlertChannel(t *testing.T) {
+	var (
+		intgGUIDs  = []string{intgguid.New(), intgguid.New(), intgguid.New()}
+		fakeServer = lacework.MockServer()
+	)
+	fakeServer.MockAPI("external/integrations/type/PAGER_DUTY_API",
+		func(w http.ResponseWriter, r *http.Request) {
+			assert.Equal(t, "GET", r.Method, "ListPagerDutyAlertChannel should be a GET method")
+			fmt.Fprintf(w, pagerDutyMultiIntegrationJsonResponse(intgGUIDs))
+		},
+	)
+	defer fakeServer.Close()
+
+	c, err := api.NewClient("test",
+		api.WithToken("TOKEN"),
+		api.WithURL(fakeServer.URL()),
+	)
+	assert.Nil(t, err)
+
+	response, err := c.Integrations.ListPagerDutyAlertChannel()
+	assert.Nil(t, err)
+	assert.NotNil(t, response)
+	assert.True(t, response.Ok)
+	assert.Equal(t, len(intgGUIDs), len(response.Data))
+	for _, d := range response.Data {
+		assert.Contains(t, intgGUIDs, d.IntgGuid)
+	}
+}
+
+func pagerDutyIntegrationJsonResponse(intgGUID string) string {
+	return `
+{
+  "data": [` + singlePagerDutyIntegration(intgGUID) + `],
+  "ok": true,
+  "message": "SUCCESS"
+}
+`
+}
+
+func pagerDutyMultiIntegrationJsonResponse(guids []string) string {
+	integrations := []string{}
+	for _, guid := range guids {
+		integrations = append(integrations, singlePagerDutyIntegration(guid))
+	}
+	return `
+{
+"data": [` + strings.Join(integrations, ", ") + `],
+"ok": true,
+"message": "SUCCESS"
+}
+`
+}
+
+func singlePagerDutyIntegration(id string) string {
+	return `
+{
+  "INTG_GUID": "` + id + `",
+  "CREATED_OR_UPDATED_BY": "[email protected]",
+  "CREATED_OR_UPDATED_TIME": "2020-Jul-16 19:59:22 UTC",
+  "DATA": {
+    "ISSUE_GROUPING": "Events",
+    "MIN_ALERT_SEVERITY": 3,
+    "API_INTG_KEY": "1234567890abcd1234567890"
+  },
+  "ENABLED": 1,
+  "IS_ORG": 0,
+  "NAME": "integration_name",
+  "STATE": {
+    "lastSuccessfulTime": "2020-Jul-16 18:26:54 UTC",
+    "lastUpdatedTime": "2020-Jul-16 18:26:54 UTC",
+    "ok": true
+  },
+  "TYPE": "PAGER_DUTY_API",
+  "TYPE_NAME": "PAGER_DUTY_API"
+}
+`
+}