connector_test.go

package ibclient

import (
	"bytes"
	"encoding/json"
	"fmt"
	"net/http"
	"net/url"
	"strings"

	. "github.com/onsi/ginkgo"
	. "github.com/onsi/gomega"
)

type FakeRequestBuilder struct {
	hostConfig HostConfig

	r   RequestType
	obj IBObject
	ref string

	urlStr  string
	bodyStr []byte
	req     *http.Request
}

func (rb *FakeRequestBuilder) Init(cfg HostConfig) {
	rb.hostConfig = cfg
}

func (rb *FakeRequestBuilder) BuildUrl(r RequestType, objType string, ref string, returnFields []string, queryParams *QueryParams) string {
	return rb.urlStr
}

func (rb *FakeRequestBuilder) BuildBody(r RequestType, obj IBObject) []byte {
	return []byte{}
}

func (rb *FakeRequestBuilder) BuildRequest(r RequestType, obj IBObject, ref string, queryParams *QueryParams) (*http.Request, error) {
	Expect(r).To(Equal(rb.r))
	if rb.obj == nil {
		Expect(obj).To(BeNil())
	} else {
		Expect(obj).To(Equal(rb.obj))
	}
	Expect(ref).To(Equal(rb.ref))

	return rb.req, nil
}

type FakeHttpRequestor struct {
	config TransportConfig

	req *http.Request
	res []byte
}

func (hr *FakeHttpRequestor) Init(config TransportConfig) {
	hr.config = config
}

func (hr *FakeHttpRequestor) SendRequest(req *http.Request) ([]byte, error) {
	Expect(req).To(Equal(hr.req))

	return hr.res, nil
}

func MockValidateConnector(c *Connector) (err error) {
	return
}

var _ = Describe("Connector", func() {

	Describe("WapiRequestBuilder", func() {
		host := "172.22.18.66"
		version := "2.2"
		port := "443"
		username := "myname"
		password := "mysecrete!"
		hostCfg := HostConfig{
			Host:     host,
			Version:  version,
			Port:     port,
			Username: username,
			Password: password,
		}

		wrb := WapiRequestBuilder{HostConfig: hostCfg}

		Describe("BuildUrl", func() {
			Context("for CREATE request", func() {
				objType := "networkview"
				ref := ""
				returnFields := []string{}
				queryParams := NewQueryParams(false, nil)
				It("should return expected url string for CREATE request when forceProxy is false", func() {
					queryParams.forceProxy = false //disable proxy
					expectedURLStr := fmt.Sprintf("https://%s:%s/wapi/v%s/%s",
						host, port, version, objType)
					urlStr := wrb.BuildUrl(CREATE, objType, ref, returnFields, queryParams)
					Expect(urlStr).To(Equal(expectedURLStr))
				})
				It("should return expected url string for CREATE request when forceProxy is true", func() {
					queryParams.forceProxy = true //proxy enabled
					expectedURLStr := fmt.Sprintf("https://%s:%s/wapi/v%s/%s",
						host, port, version, objType)
					urlStr := wrb.BuildUrl(CREATE, objType, ref, returnFields, queryParams)
					Expect(urlStr).To(Equal(expectedURLStr))

				})
			})
			Context("for GET request", func() {
				objType := "network"
				ref := ""
				returnFields := []string{"extattrs", "network", "network_view"}
				returnFieldsStr := "_return_fields" + "=" + url.QueryEscape(strings.Join(returnFields, ","))
				queryParams := NewQueryParams(false, nil)
				It("should return expected url string for GET for the return fields when forceProxy is false", func() {
					queryParams.forceProxy = false // disable proxy
					expectedURLStr := fmt.Sprintf("https://%s:%s/wapi/v%s/%s?%s",
						host, port, version, objType, returnFieldsStr)
					urlStr := wrb.BuildUrl(GET, objType, ref, returnFields, queryParams)
					Expect(urlStr).To(Equal(expectedURLStr))
				})
				It("should return expected url string for GET for the return fields when forceProxy is true", func() {
					queryParams.forceProxy = true // proxy enabled
					qry := "_proxy_search=GM"
					expectedURLStr := fmt.Sprintf("https://%s:%s/wapi/v%s/%s?%s&%s",
						host, port, version, objType, qry, returnFieldsStr)
					urlStr := wrb.BuildUrl(GET, objType, ref, returnFields, queryParams)
					Expect(urlStr).To(Equal(expectedURLStr))
				})
			})
			Context("for DELETE request", func() {
				objType := ""
				ref := "fixedaddress/ZG5zLmJpbmRfY25h:12.0.10.1/external"
				returnFields := []string{}
				queryParams := NewQueryParams(false, nil)
				It("should return expected url string for DELETE request when forceProxy is false", func() {
					queryParams.forceProxy = false //disable proxy
					expectedURLStr := fmt.Sprintf("https://%s:%s/wapi/v%s/%s",
						host, port, version, ref)
					urlStr := wrb.BuildUrl(DELETE, objType, ref, returnFields, queryParams)
					Expect(urlStr).To(Equal(expectedURLStr))
				})
				It("should return expected url string for DELETE request when forceProxy is true", func() {
					queryParams.forceProxy = true //proxy enabled
					expectedURLStr := fmt.Sprintf("https://%s:%s/wapi/v%s/%s",
						host, port, version, ref)
					urlStr := wrb.BuildUrl(DELETE, objType, ref, returnFields, queryParams)
					Expect(urlStr).To(Equal(expectedURLStr))
				})
			})

		})

		Describe("BuildBody", func() {
			It("should return expected body string for CREATE request", func() {
				networkView := "private-view"
				cidr := "172.22.18.0/24"
				eaKey := "Network Name"
				eaVal := "yellow-net"
				ea := EA{eaKey: eaVal}
				nw := NewNetwork(networkView, cidr, false, "", ea)

				netviewStr := `"network_view":"` + networkView + `"`
				networkStr := `"network":"` + cidr + `"`
				eaStr := `"extattrs":{"` + eaKey + `":{"value":"` + eaVal + `"}}`
				commentStr := `"comment":` + "" + `""`
				expectedBodyStr := "{" + strings.Join([]string{netviewStr, networkStr, eaStr, commentStr}, ",") + "}"

				bodyStr := wrb.BuildBody(CREATE, nw)
				Expect(string(bodyStr)).To(Equal(expectedBodyStr))
			})
		})

		Describe("BuildBody", func() {
			It("should return expected body for GET by EA request", func() {
				networkView := "private-view"
				cidr := "172.22.18.0/24"
				eaKey := "Network Name"
				eaVal := "yellow-net"
				eaSearch := EASearch{eaKey: eaVal}
				nw := NewNetwork(networkView, cidr, false, "", nil)
				nw.eaSearch = eaSearch

				netviewStr := `"network_view":"` + networkView + `"`
				networkStr := `"network":"` + cidr + `"`
				eaSearchStr := `"*` + eaKey + `":"` + eaVal + `"`
				eaStr := `"extattrs":{}`
				commentStr := `"comment":` + "" + `""`
				expectedBodyStr := "{" + strings.Join([]string{
					netviewStr,
					networkStr,
					eaStr,
					commentStr,
					eaSearchStr}, ",") + "}"
				bodyStr := wrb.BuildBody(GET, nw)

				Expect(string(bodyStr)).To(Equal(expectedBodyStr))
			})
		})

		Describe("BuildRequest", func() {
			Context("for CREATE request", func() {
				networkView := "private-view"
				cidr := "172.22.18.0/24"
				eaKey := "Network Name"
				eaVal := "yellow-net"
				ea := EA{eaKey: eaVal}
				nw := NewNetwork(networkView, cidr, false, "", ea)
				netviewStr := `"network_view":"` + networkView + `"`
				networkStr := `"network":"` + cidr + `"`
				eaStr := `"extattrs":{"` + eaKey + `":{"value":"` + eaVal + `"}}`
				commentStr := `"comment":` + "" + `""`
				expectedBodyStr := "{" + strings.Join([]string{netviewStr, networkStr, eaStr, commentStr}, ",") + "}"
				queryParams := NewQueryParams(false, nil)
				It("should return expected Http Request for CREATE request when forceProxy is false", func() {
					queryParams.forceProxy = false //disable proxy
					hostStr := fmt.Sprintf("%s:%s", host, port)
					req, err := wrb.BuildRequest(CREATE, nw, "", queryParams)
					Expect(err).To(BeNil())
					Expect(req.Method).To(Equal("POST"))
					Expect(req.URL.Host).To(Equal(hostStr))
					Expect(req.URL.Path).To(Equal(fmt.Sprintf("/wapi/v%s/%s", version, nw.ObjectType())))
					Expect(req.Header["Content-Type"]).To(Equal([]string{"application/json"}))
					Expect(req.Host).To(Equal(hostStr))
					actualUsername, actualPassword, ok := req.BasicAuth()
					Expect(ok).To(BeTrue())
					Expect(actualUsername).To(Equal(username))
					Expect(actualPassword).To(Equal(password))
					bodyLen := 1000
					actualBody := make([]byte, bodyLen)
					n, rderr := req.Body.Read(actualBody)
					_ = req.Body.Close()
					Expect(rderr).To(BeNil())
					Expect(n < bodyLen).To(BeTrue())
					actualBodyStr := string(actualBody[:n])
					Expect(actualBodyStr).To(Equal(expectedBodyStr))
				})
				It("should return expected Http Request for CREATE request when forceProxy is true", func() {
					queryParams.forceProxy = true //proxy enabled
					hostStr := fmt.Sprintf("%s:%s", host, port)
					req, err := wrb.BuildRequest(CREATE, nw, "", queryParams)
					Expect(err).To(BeNil())
					Expect(req.Method).To(Equal("POST"))
					Expect(req.URL.Host).To(Equal(hostStr))
					Expect(req.URL.Path).To(Equal(fmt.Sprintf("/wapi/v%s/%s", version, nw.ObjectType())))
					Expect(req.Header["Content-Type"]).To(Equal([]string{"application/json"}))
					Expect(req.Host).To(Equal(hostStr))
					actualUsername, actualPassword, ok := req.BasicAuth()
					Expect(ok).To(BeTrue())
					Expect(actualUsername).To(Equal(username))
					Expect(actualPassword).To(Equal(password))
					bodyLen := 1000
					actualBody := make([]byte, bodyLen)
					n, rderr := req.Body.Read(actualBody)
					_ = req.Body.Close()
					Expect(rderr).To(BeNil())
					Expect(n < bodyLen).To(BeTrue())
					actualBodyStr := string(actualBody[:n])
					Expect(actualBodyStr).To(Equal(expectedBodyStr))
				})
			})

		})
	})

	Describe("Connector Object Methods", func() {

		host := "172.22.18.66"
		version := "2.2"
		port := "443"
		username := "myname"
		password := "mysecrete!"
		httpRequestTimeout := 120
		httpPoolConnections := 100

		hostConfig := HostConfig{
			Host:     host,
			Version:  version,
			Port:     port,
			Username: username,
			Password: password,
		}
		transportConfig := NewTransportConfig("false", httpRequestTimeout, httpPoolConnections)

		Describe("CreateObject", func() {
			netviewName := "private-view"
			eaKey := "CMP Type"
			eaVal := "OpenStack"
			eas := EA{eaKey: eaVal}
			netViewObj := NewNetworkView(netviewName, "", eas, "")

			requestType := RequestType(CREATE)
			eaStr := `"extattrs":{"` + eaKey + `":{"value":"` + eaVal + `"}}`
			netviewStr := `"network_view":"` + netviewName + `"`
			urlStr := fmt.Sprintf("https://%s:%s/wapi/v%s/%s",
				host, port, version, netViewObj.ObjectType())
			bodyStr := []byte("{" + strings.Join([]string{netviewStr, eaStr}, ",") + "}")
			httpReq, _ := http.NewRequest(requestType.toMethod(), urlStr, bytes.NewBuffer(bodyStr))
			frb := &FakeRequestBuilder{
				r:   requestType,
				obj: netViewObj,
				ref: "",

				urlStr:  urlStr,
				bodyStr: bodyStr,
				req:     httpReq,
			}

			expectRef := "networkview/ZG5zLm5ldHdvcmtfdmlldyQyMw:global_view/false"
			fakeref := `"` + expectRef + `"`
			fhr := &FakeHttpRequestor{
				config: transportConfig,

				req: httpReq,
				res: []byte(fakeref),
			}

			OrigValidateConnector := ValidateConnector
			ValidateConnector = MockValidateConnector
			defer func() { ValidateConnector = OrigValidateConnector }()
			conn, err := NewConnector(hostConfig, transportConfig,
				frb, fhr)

			if err != nil {
				Fail("Error creating Connector")
			}
			It("should return expected object", func() {
				actualRef, err := conn.CreateObject(netViewObj)

				Expect(err).To(BeNil())
				Expect(actualRef).To(Equal(expectRef))
			})
		})

		Describe("DeleteObject", func() {
			ref := "fixedaddress/ZG5zLmJpbmRfY25h:12.0.10.1/external"

			requestType := RequestType(DELETE)
			urlStr := fmt.Sprintf("https://%s:%s/wapi/v%s/%s",
				host, port, version, ref)
			bodyStr := []byte{}
			httpReq, _ := http.NewRequest(requestType.toMethod(), urlStr, bytes.NewBuffer(bodyStr))
			frb := &FakeRequestBuilder{
				r:   requestType,
				obj: nil,
				ref: ref,

				urlStr:  urlStr,
				bodyStr: bodyStr,
				req:     httpReq,
			}

			expectRef := ref
			fakeref := `"` + expectRef + `"`
			fhr := &FakeHttpRequestor{
				config: transportConfig,

				req: httpReq,
				res: []byte(fakeref),
			}

			OrigValidateConnector := ValidateConnector
			ValidateConnector = MockValidateConnector
			defer func() { ValidateConnector = OrigValidateConnector }()
			conn, err := NewConnector(hostConfig, transportConfig,
				frb, fhr)

			if err != nil {
				Fail("Error creating Connector")
			}
			It("should return expected object ref", func() {
				actualRef, err := conn.DeleteObject(ref)

				Expect(err).To(BeNil())
				Expect(actualRef).To(Equal(expectRef))
			})

		})

		Describe("GetObject", func() {
			netviewName := "private-view"
			eaKey := "CMP Type"
			eaVal := "OpenStack"
			eas := EA{eaKey: eaVal}
			netViewObj := NewNetworkView(netviewName, "", eas, "")

			requestType := RequestType(GET)
			eaStr := `"extattrs":{"` + eaKey + `":{"value":"` + eaVal + `"}}`
			netviewStr := `"network_view":"` + netviewName + `"`
			urlStr := fmt.Sprintf("https://%s:%s/wapi/v%s/%s",
				host, port, version, netViewObj.ObjectType())
			bodyStr := []byte("{" + strings.Join([]string{netviewStr, eaStr}, ",") + "}")
			httpReq, _ := http.NewRequest(requestType.toMethod(), urlStr, bytes.NewBuffer(bodyStr))
			frb := &FakeRequestBuilder{
				r:   requestType,
				obj: netViewObj,
				ref: "",

				urlStr:  urlStr,
				bodyStr: bodyStr,
				req:     httpReq,
			}

			expectRef := "networkview/ZG5zLm5ldHdvcmtfdmlldyQyMw:global_view/false"
			eas = EA{eaKey: eaVal}
			expectObj := NewNetworkView(netviewName, "", eas, expectRef)
			expectRes, _ := json.Marshal(expectObj)

			fhr := &FakeHttpRequestor{
				config: transportConfig,

				req: httpReq,
				res: expectRes,
			}

			OrigValidateConnector := ValidateConnector
			ValidateConnector = MockValidateConnector
			defer func() { ValidateConnector = OrigValidateConnector }()

			conn, err := NewConnector(hostConfig, transportConfig,
				frb, fhr)

			if err != nil {
				Fail("Error creating Connector")
			}
			It("should return expected object", func() {
				actual := NewEmptyNetworkView()
				err := conn.GetObject(
					netViewObj, "", NewQueryParams(false, nil), actual)
				Expect(err).To(BeNil())
				Expect(actual).To(Equal(expectObj))
			})
		})
		Describe("makeRequest", func() {
			Context("for GET request", func() {
				netviewName := "private-view"
				eaKey := "CMP Type"
				eaVal := "OpenStack"
				ref := ""
				queryParams := NewQueryParams(false, nil)
				eas := EA{eaKey: eaVal}
				netViewObj := NewNetworkView(netviewName, "", eas, "")

				requestType := RequestType(GET)
				eaStr := `"extattrs":{"` + eaKey + `":{"value":"` + eaVal + `"}}`
				netviewStr := `"network_view":"` + netviewName + `"`
				urlStr := fmt.Sprintf("https://%s:%s/wapi/v%s/%s",
					host, port, version, netViewObj.ObjectType())

				bodyStr := []byte("{" + strings.Join([]string{netviewStr, eaStr}, ",") + "}")
				httpReq, _ := http.NewRequest(requestType.toMethod(), urlStr, bytes.NewBuffer(bodyStr))
				frb := &FakeRequestBuilder{
					r:   requestType,
					obj: netViewObj,
					ref: "",

					urlStr:  urlStr,
					bodyStr: bodyStr,
					req:     httpReq,
				}

				expectRef := "networkview/ZG5zLm5ldHdvcmtfdmlldyQyMw:global_view/false"
				eas = EA{eaKey: eaVal}
				expectObj := NewNetworkView(netviewName, "", eas, expectRef)
				expectRes, _ := json.Marshal(expectObj)

				fhr := &FakeHttpRequestor{
					config: transportConfig,

					req: httpReq,
					res: expectRes,
				}

				OrigValidateConnector := ValidateConnector
				ValidateConnector = MockValidateConnector
				defer func() { ValidateConnector = OrigValidateConnector }()

				conn, err := NewConnector(hostConfig, transportConfig,
					frb, fhr)

				if err != nil {
					Fail("Error creating Connector")
				}
				actual := NewEmptyNetworkView()
				It("should return expected object when forceProxy is false", func() {
					queryParams.forceProxy = false //disable proxy
					res, err := conn.makeRequest(GET, netViewObj, ref, queryParams)
					err = json.Unmarshal(res, &actual)
					Expect(err).To(BeNil())
					Expect(actual).To(Equal(expectObj))
				})
				It("should return expected object when forceProxy is true", func() {
					queryParams.forceProxy = true //enable proxy
					res, err := conn.makeRequest(GET, netViewObj, ref, queryParams)
					err = json.Unmarshal(res, &actual)
					Expect(err).To(BeNil())
					Expect(actual).To(Equal(expectObj))
				})
			})

		})

	})
})