forked from cloudfoundry/cli
/
application_bits.go
152 lines (124 loc) · 4.16 KB
/
application_bits.go
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package application_bits
import (
"bytes"
"encoding/json"
"fmt"
"io"
"mime/multipart"
"net/textproto"
"os"
"time"
"github.com/cloudfoundry/cli/cf/api/resources"
"github.com/cloudfoundry/cli/cf/configuration"
"github.com/cloudfoundry/cli/cf/errors"
. "github.com/cloudfoundry/cli/cf/i18n"
"github.com/cloudfoundry/cli/cf/net"
"github.com/cloudfoundry/gofileutils/fileutils"
)
const (
DefaultAppUploadBitsTimeout = 15 * time.Minute
)
type ApplicationBitsRepository interface {
GetApplicationFiles(appFilesRequest []resources.AppFileResource) ([]resources.AppFileResource, error)
UploadBits(appGuid string, zipFile *os.File, presentFiles []resources.AppFileResource) (apiErr error)
}
type CloudControllerApplicationBitsRepository struct {
config configuration.Reader
gateway net.Gateway
}
func NewCloudControllerApplicationBitsRepository(config configuration.Reader, gateway net.Gateway) (repo CloudControllerApplicationBitsRepository) {
repo.config = config
repo.gateway = gateway
return
}
func (repo CloudControllerApplicationBitsRepository) UploadBits(appGuid string, zipFile *os.File, presentFiles []resources.AppFileResource) (apiErr error) {
url := fmt.Sprintf("%s/v2/apps/%s/bits", repo.config.ApiEndpoint(), appGuid)
fileutils.TempFile("requests", func(requestFile *os.File, err error) {
if err != nil {
apiErr = errors.NewWithError(T("Error creating tmp file: {{.Err}}", map[string]interface{}{"Err": err}), err)
return
}
// json.Marshal represents a nil value as "null" instead of an empty slice "[]"
if presentFiles == nil {
presentFiles = []resources.AppFileResource{}
}
presentFilesJSON, err := json.Marshal(presentFiles)
if err != nil {
apiErr = errors.NewWithError(T("Error marshaling JSON"), err)
return
}
boundary, err := repo.writeUploadBody(zipFile, requestFile, presentFilesJSON)
if err != nil {
apiErr = errors.NewWithError(T("Error writing to tmp file: {{.Err}}", map[string]interface{}{"Err": err}), err)
return
}
var request *net.Request
request, apiErr = repo.gateway.NewRequest("PUT", url, repo.config.AccessToken(), requestFile)
if apiErr != nil {
return
}
contentType := fmt.Sprintf("multipart/form-data; boundary=%s", boundary)
request.HttpReq.Header.Set("Content-Type", contentType)
response := &resources.Resource{}
_, apiErr = repo.gateway.PerformPollingRequestForJSONResponse(request, response, DefaultAppUploadBitsTimeout)
if apiErr != nil {
return
}
})
return
}
func (repo CloudControllerApplicationBitsRepository) GetApplicationFiles(appFilesToCheck []resources.AppFileResource) ([]resources.AppFileResource, error) {
allAppFilesJson, err := json.Marshal(appFilesToCheck)
if err != nil {
apiErr := errors.NewWithError(T("Failed to create json for resource_match request"), err)
return nil, apiErr
}
presentFiles := []resources.AppFileResource{}
apiErr := repo.gateway.UpdateResourceSync(
repo.config.ApiEndpoint()+"/v2/resource_match",
bytes.NewReader(allAppFilesJson),
&presentFiles)
if apiErr != nil {
return nil, apiErr
}
return presentFiles, nil
}
func (repo CloudControllerApplicationBitsRepository) writeUploadBody(zipFile *os.File, body *os.File, presentResourcesJson []byte) (boundary string, err error) {
writer := multipart.NewWriter(body)
defer writer.Close()
boundary = writer.Boundary()
part, err := writer.CreateFormField("resources")
if err != nil {
return
}
_, err = io.Copy(part, bytes.NewBuffer(presentResourcesJson))
if err != nil {
return
}
if zipFile != nil {
zipStats, zipErr := zipFile.Stat()
if zipErr != nil {
return
}
if zipStats.Size() == 0 {
return
}
part, zipErr = createZipPartWriter(zipStats, writer)
if zipErr != nil {
return
}
_, zipErr = io.Copy(part, zipFile)
if zipErr != nil {
return
}
}
return
}
func createZipPartWriter(zipStats os.FileInfo, writer *multipart.Writer) (io.Writer, error) {
h := make(textproto.MIMEHeader)
h.Set("Content-Disposition", `form-data; name="application"; filename="application.zip"`)
h.Set("Content-Type", "application/zip")
h.Set("Content-Length", fmt.Sprintf("%d", zipStats.Size()))
h.Set("Content-Transfer-Encoding", "binary")
return writer.CreatePart(h)
}