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client.go
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client.go
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package estafetteciapi
import (
"context"
"encoding/json"
"fmt"
"io"
"io/ioutil"
"net/http"
"strings"
"time"
contracts "github.com/estafette/estafette-ci-contracts"
corev1 "github.com/estafette/estafette-ci-hanging-job-cleaner/api/core/v1"
foundation "github.com/estafette/estafette-foundation"
"github.com/opentracing-contrib/go-stdlib/nethttp"
"github.com/opentracing/opentracing-go"
"github.com/rs/zerolog/log"
"github.com/sethgrid/pester"
)
type Client interface {
GetToken(ctx context.Context) (token string, err error)
GetRunningBuilds(ctx context.Context, pageNumber, pageSize int) (pagedBuildResponse corev1.PagedBuildResponse, err error)
GetRunningReleases(ctx context.Context, pageNumber, pageSize int) (pagedReleasesResponse corev1.PagedReleasesResponse, err error)
CancelBuild(ctx context.Context, build *contracts.Build) (err error)
CancelRelease(ctx context.Context, release *contracts.Release) (err error)
}
// NewClient returns a new estafetteciapi.Client
func NewClient(apiBaseURL, clientID, clientSecret string) (Client, error) {
return &client{
apiBaseURL: apiBaseURL,
clientID: clientID,
clientSecret: clientSecret,
}, nil
}
type client struct {
apiBaseURL string
clientID string
clientSecret string
token string
}
func (c *client) GetToken(ctx context.Context) (token string, err error) {
span, ctx := opentracing.StartSpanFromContext(ctx, "estafetteciapi.Client:GetToken")
defer span.Finish()
log.Debug().Msgf("Retrieving JWT token")
clientObject := contracts.Client{
ClientID: c.clientID,
ClientSecret: c.clientSecret,
}
bytes, err := json.Marshal(clientObject)
if err != nil {
return
}
getTokenURL := fmt.Sprintf("%v/api/auth/client/login", c.apiBaseURL)
headers := map[string]string{
"Content-Type": "application/json",
}
responseBody, err := c.postRequest(getTokenURL, span, strings.NewReader(string(bytes)), headers)
tokenResponse := struct {
Token string `json:"token"`
}{}
// unmarshal json body
err = json.Unmarshal(responseBody, &tokenResponse)
if err != nil {
log.Error().Err(err).Str("body", string(responseBody)).Msgf("Failed unmarshalling get token response")
return
}
// set token
c.token = tokenResponse.Token
return tokenResponse.Token, nil
}
func (c *client) GetRunningBuilds(ctx context.Context, pageNumber, pageSize int) (pagedBuildResponse corev1.PagedBuildResponse, err error) {
span, ctx := opentracing.StartSpanFromContext(ctx, "estafetteciapi.Client:GetRunningBuilds")
defer span.Finish()
log.Info().Msgf("Retrieving pending/running/canceling builds page %v of size %v...", pageNumber, pageSize)
span.LogKV("page[number]", pageNumber, "page[size]", pageSize)
getBuildsURL := fmt.Sprintf("%v/api/builds?filter[status]=running&filter[status]=pending&filter[status]=canceling&page[number]=%v&page[size]=%v", c.apiBaseURL, pageNumber, pageSize)
headers := map[string]string{
"Authorization": fmt.Sprintf("Bearer %v", c.token),
"Content-Type": "application/json",
}
responseBody, err := c.getRequest(getBuildsURL, span, nil, headers)
if err != nil {
log.Error().Err(err).Str("url", getBuildsURL).Msgf("Failed retrieving builds response")
return
}
// unmarshal json body
err = json.Unmarshal(responseBody, &pagedBuildResponse)
if err != nil {
log.Error().Err(err).Str("body", string(responseBody)).Str("url", getBuildsURL).Msgf("Failed unmarshalling get builds response")
return
}
log.Info().Msgf("Retrieved %v pending/running/canceling builds for page %v of size %v of %v total pages", len(pagedBuildResponse.Items), pageNumber, pageSize, pagedBuildResponse.Pagination.TotalPages)
return
}
func (c *client) GetRunningReleases(ctx context.Context, pageNumber, pageSize int) (pagedReleasesResponse corev1.PagedReleasesResponse, err error) {
span, ctx := opentracing.StartSpanFromContext(ctx, "estafetteciapi.Client:GetRunningReleases")
defer span.Finish()
log.Info().Msgf("Retrieving pending/running/canceling releases page %v of size %v...", pageNumber, pageSize)
span.LogKV("page[number]", pageNumber, "page[size]", pageSize)
getReleasesURL := fmt.Sprintf("%v/api/releases?filter[status]=running&filter[status]=pending&filter[status]=canceling&page[number]=%v&page[size]=%v", c.apiBaseURL, pageNumber, pageSize)
headers := map[string]string{
"Authorization": fmt.Sprintf("Bearer %v", c.token),
"Content-Type": "application/json",
}
responseBody, err := c.getRequest(getReleasesURL, span, nil, headers)
if err != nil {
log.Error().Err(err).Str("url", getReleasesURL).Msgf("Failed retrieving releases response")
return
}
// unmarshal json body
err = json.Unmarshal(responseBody, &pagedReleasesResponse)
if err != nil {
log.Error().Err(err).Str("body", string(responseBody)).Str("url", getReleasesURL).Msgf("Failed unmarshalling get releases response")
return
}
log.Info().Msgf("Retrieved %v pending/running/canceling releases for page %v of size %v of %v total pages", len(pagedReleasesResponse.Items), pageNumber, pageSize, pagedReleasesResponse.Pagination.TotalPages)
return
}
func (c *client) CancelBuild(ctx context.Context, build *contracts.Build) (err error) {
span, ctx := opentracing.StartSpanFromContext(ctx, "estafetteciapi.Client:CancelBuild")
defer span.Finish()
log.Info().Msgf("Canceling build for pipeline %v/%v/%v with id %v, status %v and started at %v...", build.RepoSource, build.RepoOwner, build.RepoName, build.ID, build.BuildStatus, build.InsertedAt)
// DELETE /api/pipelines/:source/:owner/:repo/builds/:revisionOrId
cancelBuildURL := fmt.Sprintf("%v/api/pipelines/%v/%v/%v/builds/%v", c.apiBaseURL, build.RepoSource, build.RepoOwner, build.RepoName, build.ID)
headers := map[string]string{
"Authorization": fmt.Sprintf("Bearer %v", c.token),
"Content-Type": "application/json",
}
responseBody, err := c.deleteRequest(cancelBuildURL, span, nil, headers)
if err != nil {
log.Error().Err(err).Str("url", cancelBuildURL).Msgf("Failed canceling build for pipeline %v/%v/%v with id %v", build.RepoSource, build.RepoOwner, build.RepoName, build.ID)
return
}
log.Debug().Str("body", string(responseBody)).Msgf("Canceled build for pipeline %v/%v/%v with id %v...", build.RepoSource, build.RepoOwner, build.RepoName, build.ID)
return nil
}
func (c *client) CancelRelease(ctx context.Context, release *contracts.Release) (err error) {
span, ctx := opentracing.StartSpanFromContext(ctx, "estafetteciapi.Client:CancelRelease")
defer span.Finish()
log.Info().Msgf("Canceling release for pipeline %v/%v/%v with id %v, status %v and started at %v...", release.RepoSource, release.RepoOwner, release.RepoName, release.ID, release.ReleaseStatus, release.InsertedAt)
// DELETE /api/pipelines/:source/:owner/:repo/releases/:id
cancelReleaseURL := fmt.Sprintf("%v/api/pipelines/%v/%v/%v/releases/%v", c.apiBaseURL, release.RepoSource, release.RepoOwner, release.RepoName, release.ID)
headers := map[string]string{
"Authorization": fmt.Sprintf("Bearer %v", c.token),
"Content-Type": "application/json",
}
responseBody, err := c.deleteRequest(cancelReleaseURL, span, nil, headers)
if err != nil {
log.Error().Err(err).Str("url", cancelReleaseURL).Msgf("Failed canceling release for pipeline %v/%v/%v with id %v", release.RepoSource, release.RepoOwner, release.RepoName, release.ID)
return
}
log.Debug().Str("body", string(responseBody)).Msgf("Canceled release for pipeline %v/%v/%v with id %v...", release.RepoSource, release.RepoOwner, release.RepoName, release.ID)
return nil
}
func (c *client) getRequest(uri string, span opentracing.Span, requestBody io.Reader, headers map[string]string, allowedStatusCodes ...int) (responseBody []byte, err error) {
return c.makeRequest("GET", uri, span, requestBody, headers, allowedStatusCodes...)
}
func (c *client) postRequest(uri string, span opentracing.Span, requestBody io.Reader, headers map[string]string, allowedStatusCodes ...int) (responseBody []byte, err error) {
return c.makeRequest("POST", uri, span, requestBody, headers, allowedStatusCodes...)
}
func (c *client) putRequest(uri string, span opentracing.Span, requestBody io.Reader, headers map[string]string, allowedStatusCodes ...int) (responseBody []byte, err error) {
return c.makeRequest("PUT", uri, span, requestBody, headers, allowedStatusCodes...)
}
func (c *client) deleteRequest(uri string, span opentracing.Span, requestBody io.Reader, headers map[string]string, allowedStatusCodes ...int) (responseBody []byte, err error) {
return c.makeRequest("DELETE", uri, span, requestBody, headers, allowedStatusCodes...)
}
func (c *client) makeRequest(method, uri string, span opentracing.Span, requestBody io.Reader, headers map[string]string, allowedStatusCodes ...int) (responseBody []byte, err error) {
// create client, in order to add headers
client := pester.NewExtendedClient(&http.Client{Transport: &nethttp.Transport{}})
client.MaxRetries = 3
client.Backoff = pester.ExponentialJitterBackoff
client.KeepLog = true
client.Timeout = time.Second * 10
request, err := http.NewRequest(method, uri, requestBody)
if err != nil {
return nil, err
}
// add tracing context
request = request.WithContext(opentracing.ContextWithSpan(request.Context(), span))
// collect additional information on setting up connections
request, ht := nethttp.TraceRequest(span.Tracer(), request)
// add headers
for k, v := range headers {
request.Header.Add(k, v)
}
// perform actual request
response, err := client.Do(request)
if err != nil {
return nil, err
}
defer response.Body.Close()
ht.Finish()
if len(allowedStatusCodes) == 0 {
allowedStatusCodes = []int{http.StatusOK}
}
if !foundation.IntArrayContains(allowedStatusCodes, response.StatusCode) {
return nil, fmt.Errorf("%v %v responded with status code %v", method, uri, response.StatusCode)
}
body, err := ioutil.ReadAll(response.Body)
if err != nil {
return
}
return body, nil
}