/
resource.go
285 lines (236 loc) · 8.07 KB
/
resource.go
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package obj
import (
"bytes"
"context"
"encoding/base64"
"errors"
"fmt"
"net/http"
"os"
"path/filepath"
"strings"
"github.com/aws/aws-sdk-go/aws"
"github.com/aws/aws-sdk-go/aws/awserr"
"github.com/aws/aws-sdk-go/service/s3"
"github.com/hashicorp/terraform-plugin-sdk/v2/diag"
"github.com/hashicorp/terraform-plugin-sdk/v2/helper/schema"
"github.com/linode/terraform-provider-linode/linode/helper"
)
func Resource() *schema.Resource {
return &schema.Resource{
Schema: resourceSchema,
ReadContext: readResource,
CreateContext: createResource,
UpdateContext: updateResource,
DeleteContext: deleteResource,
CustomizeDiff: diffResource,
}
}
func createResource(ctx context.Context, d *schema.ResourceData, meta interface{}) diag.Diagnostics {
return putObject(ctx, d, meta)
}
func readResource(ctx context.Context, d *schema.ResourceData, meta interface{}) diag.Diagnostics {
client := helper.S3ConnFromResourceData(d)
bucket := d.Get("bucket").(string)
key := d.Get("key").(string)
headOutput, err := client.HeadObject(&s3.HeadObjectInput{
Bucket: &bucket,
Key: &key,
})
if err != nil {
// If the object is not found, mark as destroyed so it can be recreated.
if awsErr, ok := err.(awserr.RequestFailure); ok && awsErr.StatusCode() == http.StatusNotFound {
d.SetId("")
fmt.Printf(`[WARN] could not find Bucket (%s) Object (%s)`, bucket, key)
return nil
}
return diag.FromErr(err)
}
d.Set("cache_control", headOutput.CacheControl)
d.Set("content_disposition", headOutput.ContentDisposition)
d.Set("content_encoding", headOutput.ContentEncoding)
d.Set("content_language", headOutput.ContentLanguage)
d.Set("content_type", headOutput.ContentType)
d.Set("etag", strings.Trim(aws.StringValue(headOutput.ETag), `"`))
d.Set("website_redirect", headOutput.WebsiteRedirectLocation)
d.Set("version_id", headOutput.VersionId)
d.Set("metadata", flattenObjectMetadata(headOutput.Metadata))
return nil
}
func updateResource(ctx context.Context, d *schema.ResourceData, meta interface{}) diag.Diagnostics {
if d.HasChanges("cache_control", "content_base64", "content_disposition",
"content_encoding", "content_language", "content_type", "content",
"etag", "metadata", "source", "website_redirect") {
return putObject(ctx, d, meta)
}
bucket := d.Get("bucket").(string)
key := d.Get("key").(string)
acl := d.Get("acl").(string)
if d.HasChange("acl") {
client := helper.S3ConnFromResourceData(d)
if _, err := client.PutObjectAcl(&s3.PutObjectAclInput{
Bucket: &bucket,
Key: &key,
ACL: &acl,
}); err != nil {
return diag.Errorf("failed to put Bucket (%s) Object (%s) ACL: %s", bucket, key, err)
}
}
return readResource(ctx, d, meta)
}
func deleteResource(ctx context.Context, d *schema.ResourceData, meta interface{}) diag.Diagnostics {
conn := helper.S3ConnFromResourceData(d)
if _, ok := d.GetOk("version_id"); ok {
return deleteAllObjectVersions(ctx, d)
}
bucket := d.Get("bucket").(string)
key := strings.TrimPrefix(d.Get("key").(string), "/")
force := d.Get("force_destroy").(bool)
return diag.FromErr(deleteObject(conn, bucket, key, "", force))
}
func diffResource(
ctx context.Context, d *schema.ResourceDiff, meta interface{},
) error {
if d.HasChange("etag") {
d.SetNewComputed("version_id")
}
return nil
}
// putObject builds the object from spec and puts it in the
// specified bucket via the *schema.ResourceData, then it calls
// readResource.
func putObject(ctx context.Context, d *schema.ResourceData, meta interface{}) diag.Diagnostics {
client := helper.S3ConnFromResourceData(d)
body, err := objectBodyFromResourceData(d)
if err != nil {
return diag.FromErr(err)
}
defer body.Close()
bucket := d.Get("bucket").(string)
key := d.Get("key").(string)
nilOrValue := func(s string) *string {
if s == "" {
return nil
}
return &s
}
putInput := &s3.PutObjectInput{
Bucket: &bucket,
Key: &key,
Body: body,
ACL: nilOrValue(d.Get("acl").(string)),
CacheControl: nilOrValue(d.Get("cache_control").(string)),
ContentDisposition: nilOrValue(d.Get("content_disposition").(string)),
ContentEncoding: nilOrValue(d.Get("content_encoding").(string)),
ContentLanguage: nilOrValue(d.Get("content_language").(string)),
ContentType: nilOrValue(d.Get("content_type").(string)),
WebsiteRedirectLocation: nilOrValue(d.Get("website_redirect").(string)),
}
if metadata, ok := d.GetOk("metadata"); ok {
putInput.Metadata = expandObjectMetadata(metadata.(map[string]interface{}))
}
if _, err := client.PutObject(putInput); err != nil {
return diag.Errorf("failed to put Bucket (%s) Object (%s): %s", bucket, key, err)
}
d.SetId(helper.BuildObjectStorageObjectID(d))
return readResource(ctx, d, meta)
}
// deleteAllObjectVersions deletes all versions of a given
// object.
func deleteAllObjectVersions(ctx context.Context, d *schema.ResourceData) diag.Diagnostics {
bucket := d.Get("bucket").(string)
key := d.Get("key").(string)
force := d.Get("force_destroy").(bool)
conn := helper.S3ConnFromResourceData(d)
var versions []string
listObjectVersionsInput := &s3.ListObjectVersionsInput{
Bucket: &bucket,
}
if key != "" {
listObjectVersionsInput.Prefix = &key
}
// accumulate all versions of the current object to be deleted
if err := conn.ListObjectVersionsPages(
listObjectVersionsInput, func(page *s3.ListObjectVersionsOutput, lastPage bool) bool {
if page == nil {
return !lastPage
}
for _, objectVersion := range page.Versions {
if objectKey := aws.StringValue(objectVersion.Key); objectKey == key {
versions = append(versions, aws.StringValue(objectVersion.VersionId))
}
}
return !lastPage
}); err != nil {
if err, ok := err.(awserr.Error); !(ok && err.Code() != s3.ErrCodeNoSuchBucket) {
return diag.Errorf("failed to list Bucket (%s) Object (%s) versions: %s", bucket, key, err)
}
}
// delete all version of the current object
for _, version := range versions {
if err := deleteObject(conn, bucket, key, version, force); err != nil {
return diag.FromErr(err)
}
}
return nil
}
func deleteObject(client *s3.S3, bucket, key, version string, force bool) error {
deleteObjectInput := &s3.DeleteObjectInput{
Bucket: &bucket,
Key: &key,
BypassGovernanceRetention: aws.Bool(force),
}
if version != "" {
deleteObjectInput.VersionId = &version
}
_, err := client.DeleteObject(deleteObjectInput)
if err == nil {
return nil
}
msg := fmt.Sprintf("failed to delete Bucket (%s) Object (%s) Version (%s): %s", bucket, key, version, err)
//nolint:lll
if awsErr, ok := err.(awserr.Error); ok && (awsErr.Code() == s3.ErrCodeNoSuchBucket || awsErr.Code() == s3.ErrCodeNoSuchKey) {
return nil
} else if ok {
return awserr.New(awsErr.Code(), msg, awsErr)
}
return errors.New(msg)
}
func objectBodyFromResourceData(d *schema.ResourceData) (body aws.ReaderSeekerCloser, err error) {
if source, ok := d.GetOk("source"); ok {
sourceFilePath := source.(string)
file, err := os.Open(filepath.Clean(sourceFilePath))
if err != nil {
return aws.ReaderSeekerCloser{}, err
}
return aws.ReadSeekCloser(file), err
}
var contentBytes []byte
if encodedContent, ok := d.GetOk("content_base64"); ok {
contentBytes, err = base64.StdEncoding.DecodeString(encodedContent.(string))
} else {
content := d.Get("content").(string)
contentBytes = []byte(content)
}
body = aws.ReadSeekCloser(bytes.NewReader(contentBytes))
return
}
func expandObjectMetadata(metadata map[string]interface{}) map[string]*string {
metadataMap := make(map[string]*string, len(metadata))
for key, value := range metadata {
metadataMap[key] = aws.String(value.(string))
}
return metadataMap
}
func flattenObjectMetadata(metadata map[string]*string) map[string]string {
metadataObject := make(map[string]string, len(metadata))
for key, value := range metadata {
if value == nil {
continue
}
// AWS Go SDK capitalizes metadata, this is a workaround. https://github.com/aws/aws-sdk-go/issues/445
key := strings.ToLower(key)
metadataObject[key] = *value
}
return metadataObject
}