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jenkins.go
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package gojenkins
import (
"bytes"
"encoding/json"
"encoding/xml"
"errors"
"fmt"
"io"
"io/ioutil"
"net/http"
"net/url"
"strings"
"time"
)
type Auth struct {
Username string
ApiToken string
BearerToken string
}
type Jenkins struct {
auth *Auth
baseUrl string
client *http.Client
}
func NewJenkins(auth *Auth, baseUrl string) *Jenkins {
client := &http.Client{
CheckRedirect: func(req *http.Request, via []*http.Request) error {
return http.ErrUseLastResponse
}}
return &Jenkins{
auth: auth,
baseUrl: baseUrl,
client: client,
}
}
// SetHTTPClient with timeouts or insecure transport, etc.
func (jenkins *Jenkins) SetHTTPClient(client *http.Client) {
jenkins.client = client
}
func (jenkins *Jenkins) buildUrl(path string, params url.Values) (requestUrl string) {
requestUrl = jenkins.baseUrl + path + "/api/json"
if params != nil {
queryString := params.Encode()
if queryString != "" {
requestUrl = requestUrl + "?" + queryString
}
}
return
}
func (jenkins *Jenkins) buildUrlNoBase(path string, params url.Values) (requestUrl string) {
requestUrl = path + "/api/json"
if params != nil {
queryString := params.Encode()
if queryString != "" {
requestUrl = requestUrl + "?" + queryString
}
}
return
}
func (jenkins *Jenkins) buildUrlRaw(path string, params url.Values) (requestUrl string) {
requestUrl = jenkins.baseUrl + path
if params != nil {
queryString := params.Encode()
if queryString != "" {
requestUrl = requestUrl + "?" + queryString
}
}
return
}
func (jenkins *Jenkins) sendRequest(req *http.Request) (*http.Response, error) {
if jenkins.auth != nil {
if jenkins.auth.BearerToken != "" {
req.Header.Add("Authorization", "Bearer "+jenkins.auth.BearerToken)
} else {
req.SetBasicAuth(jenkins.auth.Username, jenkins.auth.ApiToken)
}
}
return jenkins.client.Do(req)
}
func (jenkins *Jenkins) parseXmlResponse(resp *http.Response, body interface{}) (err error) {
defer resp.Body.Close()
if body == nil {
return
}
data, err := ioutil.ReadAll(resp.Body)
if err != nil {
return
}
return xml.Unmarshal(data, body)
}
func (jenkins *Jenkins) parseXmlResponseWithWrapperElement(resp *http.Response, body interface{}, rootElementName string) (err error) {
defer resp.Body.Close()
if body == nil {
return
}
data, err := ioutil.ReadAll(resp.Body)
if err != nil {
return
}
xmlText := strings.TrimSpace(string(data))
if strings.Index(xmlText, "<?") == 0 {
idx := strings.Index(xmlText, "?>")
if idx < 0 {
return fmt.Errorf("Could not find matching '?>' characters to strip the XML pragma!")
}
xmlText = xmlText[idx+2:]
}
//log.Printf("Parsing XML: %s", xmlText)
wrappedDoc := "<" + rootElementName + ">\n" + xmlText + "\n</" + rootElementName + ">"
return xml.Unmarshal([]byte(wrappedDoc), body)
}
func (jenkins *Jenkins) parseResponse(resp *http.Response, body interface{}) (err error) {
defer resp.Body.Close()
if resp.StatusCode != 302 && resp.StatusCode != 405 && resp.StatusCode > 201 {
return errors.New(resp.Status)
}
if body == nil {
return
}
data, err := ioutil.ReadAll(resp.Body)
if err != nil {
return
}
return json.Unmarshal(data, body)
}
func (jenkins *Jenkins) parseResponseRaw(resp *http.Response, body interface{}) (dataStr string, err error) {
defer resp.Body.Close()
if resp.StatusCode != 302 && resp.StatusCode != 405 && resp.StatusCode > 201 {
return
}
if body == nil {
return
}
data, err := ioutil.ReadAll(resp.Body)
if err != nil {
return
}
dataStr = string(data[:])
return
}
func (jenkins *Jenkins) get(path string, params url.Values, body interface{}) (err error) {
requestUrl := jenkins.buildUrl(path, params)
req, err := http.NewRequest("GET", requestUrl, nil)
if err != nil {
return
}
resp, err := jenkins.sendRequest(req)
if err != nil {
return
}
return jenkins.parseResponse(resp, body)
}
func (jenkins *Jenkins) getUrl(path string, params url.Values, body interface{}) (err error) {
requestUrl := jenkins.buildUrlNoBase(path, params)
req, err := http.NewRequest("GET", requestUrl, nil)
if err != nil {
return
}
resp, err := jenkins.sendRequest(req)
if err != nil {
return
}
return jenkins.parseResponse(resp, body)
}
// uses the actual URL passed in rather than appending api/json
func (jenkins *Jenkins) getRaw(path string, params url.Values, body interface{}) (data string, err error) {
requestUrl := jenkins.buildUrlRaw(path, params)
req, err := http.NewRequest("GET", requestUrl, nil)
if err != nil {
return
}
resp, err := jenkins.sendRequest(req)
if err != nil {
return
}
data, err = jenkins.parseResponseRaw(resp, body)
return
}
func (jenkins *Jenkins) getXml(path string, params url.Values, body interface{}) (err error) {
requestUrl := jenkins.buildUrl(path, params)
req, err := http.NewRequest("GET", requestUrl, nil)
if err != nil {
return
}
resp, err := jenkins.sendRequest(req)
if err != nil {
return
}
return jenkins.parseXmlResponse(resp, body)
}
func (jenkins *Jenkins) getConfigXml(path string, params url.Values, body interface{}) (err error) {
requestUrl := jenkins.buildUrl(path, params)
req, err := http.NewRequest("GET", requestUrl, nil)
if err != nil {
return
}
resp, err := jenkins.sendRequest(req)
if err != nil {
return
}
// lets add a dummy item wrapper xml to make the xml parsing easier
return jenkins.parseXmlResponseWithWrapperElement(resp, body, "item")
}
func (jenkins *Jenkins) post(path string, params url.Values, body interface{}) (err error) {
requestUrl := jenkins.buildUrl(path, params)
req, err := http.NewRequest("POST", requestUrl, nil)
if err != nil {
return
}
resp, err := jenkins.sendRequest(req)
if err != nil {
return
}
return jenkins.parseResponse(resp, body)
}
func (jenkins *Jenkins) postUrl(path string, params url.Values, body interface{}) (err error) {
requestUrl := jenkins.buildUrlNoBase(path, params)
req, err := http.NewRequest("POST", requestUrl, nil)
if err != nil {
return
}
resp, err := jenkins.sendRequest(req)
if err != nil {
return
}
return jenkins.parseResponse(resp, body)
}
func (jenkins *Jenkins) postXml(path string, params url.Values, xmlBody io.Reader, body interface{}) (err error) {
requestUrl := jenkins.baseUrl + path
if params != nil {
queryString := params.Encode()
if queryString != "" {
requestUrl = requestUrl + "?" + queryString
}
}
req, err := http.NewRequest("POST", requestUrl, xmlBody)
if err != nil {
return
}
req.Header.Add("Content-Type", "application/xml")
resp, err := jenkins.sendRequest(req)
if err != nil {
return
}
return jenkins.parseXmlResponse(resp, body)
}
// GetJobs returns all jobs you can read.
func (jenkins *Jenkins) GetJobs() ([]Job, error) {
var payload = struct {
Jobs []Job `json:"jobs"`
}{}
err := jenkins.get("", nil, &payload)
return payload.Jobs, err
}
// GetJob returns a job which has specified name.
func (jenkins *Jenkins) GetJob(name string) (job Job, err error) {
err = jenkins.get(fmt.Sprintf("/job/%s", name), nil, &job)
return
}
// GetJobUrl returns the URL path for the job with the specified name.
func (jenkins *Jenkins) GetJobURLPath(name string) string {
return fmt.Sprintf("/job/%s", name)
}
//GetJobConfig returns a maven job, has the one used to create Maven job
func (jenkins *Jenkins) GetJobConfig(name string) (job JobItem, err error) {
err = jenkins.getConfigXml(fmt.Sprintf("/job/%s/config.xml", name), nil, &job)
return
}
// GetBuild returns a number-th build result of specified job.
func (jenkins *Jenkins) GetBuild(job Job, number int) (build Build, err error) {
err = jenkins.getUrl(fmt.Sprintf("%s%d", job.Url, number), nil, &build)
return
}
// GetLastBuild returns the last build of specified job.
func (jenkins *Jenkins) GetLastBuild(job Job) (build Build, err error) {
err = jenkins.getUrl(fmt.Sprintf("%slastBuild", job.Url), nil, &build)
return
}
func (jenkins *Jenkins) GetMultiBranchJob(organisationJobName, multibranchJobName, branch string) (job Job, err error) {
err = jenkins.get(fmt.Sprintf("/job/%s/job/%s/job/%s", organisationJobName, multibranchJobName, branch), nil, &job)
return
}
// GetJobByPath looks up the jenkins job via the one or more paths
func (jenkins *Jenkins) GetJobByPath(path ...string)(job Job, err error){
fullPath := FullJobPath(path...)
err = jenkins.get(fullPath, nil, &job)
return
}
// FullJobPath returns the full job path URL for the given paths
func FullJobPath(path ...string) string {
buffer := bytes.NewBufferString("")
for _, p := range path {
buffer.WriteString("/job/")
t := strings.TrimPrefix(p, "/")
buffer.WriteString(strings.TrimSuffix(t, "/"))
}
return buffer.String()
}
// FullJobPath returns the full job path URL for the given paths
func FullPath(job Job) string {
paths := strings.Split(job.FullName, "/")
return FullJobPath(paths...)
}
// GetLastBuild returns the last build of specified job.
func (jenkins *Jenkins) GetOrganizationScanResult(retries int, job Job) (status string, err error) {
// wait util the scan has finished - not found anything on the jenkins remote API to do this but must be a better way?
err = RetryAfter(retries, func() error {
data, err := jenkins.getRaw(fmt.Sprintf("/job/%s/computation/consoleText", job.Name), nil, &job)
if err != nil {
return err
}
dataArray := strings.Split(data, "\n")
lastLine := string(dataArray[len(dataArray)-2])
if strings.Contains(lastLine, "Finished") {
return nil
}
return errors.New("Scan not finished yet")
}, time.Second*5)
data, err := jenkins.getRaw(fmt.Sprintf("/job/%s/computation/consoleText", job.Name), nil, &job)
if err != nil {
return "", err
}
dataArray := strings.Split(data, "\n")
lastLine := string(dataArray[len(dataArray)-2])
return strings.Replace(lastLine, "Finished: ", "", 1), nil
}
// Create a new job
func (jenkins *Jenkins) CreateJob(jobItem JobItem, jobName string) error {
jobItemXml, err := JobToXml(jobItem)
if err != nil {
return err
}
reader := bytes.NewReader(jobItemXml)
params := url.Values{"name": []string{jobName}}
return jenkins.postXml("/createItem", params, reader, nil)
}
// Create a new job
func (jenkins *Jenkins) CreateJobWithXML(jobItemXml string, jobName string) error {
reader := bytes.NewReader([]byte(jobItemXml))
params := url.Values{"name": []string{jobName}}
return jenkins.postXml("/createItem", params, reader, nil)
}
// Delete a job
func (jenkins *Jenkins) DeleteJob(job Job) error {
return jenkins.postUrl(fmt.Sprintf("%sdoDelete", job.Url), nil, nil)
}
// Update a job
func (jenkins *Jenkins) UpdateJob(jobItem JobItem, jobName string) error {
jobItemXml, err := JobToXml(jobItem)
if err != nil {
return err
}
reader := bytes.NewReader(jobItemXml)
params := url.Values{"name": []string{}}
return jenkins.postXml(jenkins.GetJobURLPath(jobName), params, reader, nil)
}
// Remove a job
func (jenkins *Jenkins) RemoveJob(jobName string) error {
reader := bytes.NewReader([]byte{})
params := url.Values{}
url := jenkins.GetJobURLPath(jobName) + "/doDelete"
return jenkins.postXml(url, params, reader, nil)
}
// Add job to view
func (jenkins *Jenkins) AddJobToView(viewName string, job Job) error {
params := url.Values{"name": []string{job.Name}}
return jenkins.post(fmt.Sprintf("/view/%s/addJobToView", viewName), params, nil)
}
// Create a new view
func (jenkins *Jenkins) CreateView(listView ListView) error {
xmlListView, _ := xml.Marshal(listView)
reader := bytes.NewReader(xmlListView)
params := url.Values{"name": []string{listView.Name}}
return jenkins.postXml("/createView", params, reader, nil)
}
// Create a new build for this job.
// Params can be nil.
func (jenkins *Jenkins) Build(job Job, params url.Values) error {
if hasParams(job) {
return jenkins.postUrl(fmt.Sprintf("%sbuildWithParameters", job.Url), params, nil)
} else {
return jenkins.postUrl(fmt.Sprintf("%sbuild", job.Url), params, nil)
}
}
// Get the console output from a build.
func (jenkins *Jenkins) GetBuildConsoleOutput(build Build) ([]byte, error) {
requestUrl := fmt.Sprintf("%s/consoleText", build.Url)
req, err := http.NewRequest("GET", requestUrl, nil)
if err != nil {
return nil, err
}
res, err := jenkins.sendRequest(req)
if err != nil {
return nil, err
}
defer res.Body.Close()
return ioutil.ReadAll(res.Body)
}
// GetQueue returns the current build queue from Jenkins
func (jenkins *Jenkins) GetQueue() (queue Queue, err error) {
err = jenkins.get(fmt.Sprintf("/queue"), nil, &queue)
return
}
// GetArtifact return the content of a build artifact
func (jenkins *Jenkins) GetArtifact(build Build, artifact Artifact) ([]byte, error) {
requestUrl := fmt.Sprintf("%s/artifact/%s", build.Url, artifact.RelativePath)
req, err := http.NewRequest("GET", requestUrl, nil)
if err != nil {
return nil, err
}
res, err := jenkins.sendRequest(req)
if err != nil {
return nil, err
}
defer res.Body.Close()
return ioutil.ReadAll(res.Body)
}
// SetBuildDescription sets the description of a build
func (jenkins *Jenkins) SetBuildDescription(build Build, description string) error {
requestUrl := fmt.Sprintf("%ssubmitDescription?description=%s", build.Url, url.QueryEscape(description))
req, err := http.NewRequest("GET", requestUrl, nil)
if err != nil {
return err
}
res, err := jenkins.sendRequest(req)
if err != nil {
return err
}
defer res.Body.Close()
if res.StatusCode != 200 {
return fmt.Errorf("Unexpected response: expected '200' but received '%d'", res.StatusCode)
}
return nil
}
// GetComputerObject returns the main ComputerObject
func (jenkins *Jenkins) GetComputerObject() (co ComputerObject, err error) {
err = jenkins.get(fmt.Sprintf("/computer"), nil, &co)
return
}
// GetComputers returns the list of all Computer objects
func (jenkins *Jenkins) GetComputers() ([]Computer, error) {
var payload = struct {
Computers []Computer `json:"computer"`
}{}
err := jenkins.get("/computer", nil, &payload)
return payload.Computers, err
}
// GetComputer returns a Computer object with a specified name.
func (jenkins *Jenkins) GetComputer(name string) (computer Computer, err error) {
err = jenkins.get(fmt.Sprintf("/computer/%s", name), nil, &computer)
return
}
// hasParams returns a boolean value indicating if the job is parameterized
func hasParams(job Job) bool {
for _, action := range job.Actions {
if len(action.ParameterDefinitions) > 0 {
return true
}
}
return false
}