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package blobs
import (
"context"
"net/http"
"strings"
"github.com/Azure/go-autorest/autorest"
"github.com/Azure/go-autorest/autorest/azure"
"github.com/Azure/go-autorest/autorest/validation"
"github.com/tombuildsstuff/giovanni/storage/internal/endpoints"
"github.com/tombuildsstuff/giovanni/storage/internal/metadata"
)
type PutPageBlobInput struct {
CacheControl *string
ContentDisposition *string
ContentEncoding *string
ContentLanguage *string
ContentMD5 *string
ContentType *string
LeaseID *string
MetaData map[string]string
BlobContentLengthBytes int64
BlobSequenceNumber *int64
AccessTier *AccessTier
}
// PutPageBlob is a wrapper around the Put API call (with a stricter input object)
// which creates a new block blob, or updates the content of an existing page blob.
func (client Client) PutPageBlob(ctx context.Context, accountName, containerName, blobName string, input PutPageBlobInput) (result autorest.Response, err error) {
if accountName == "" {
return result, validation.NewError("blobs.Client", "PutPageBlob", "`accountName` cannot be an empty string.")
}
if containerName == "" {
return result, validation.NewError("blobs.Client", "PutPageBlob", "`containerName` cannot be an empty string.")
}
if strings.ToLower(containerName) != containerName {
return result, validation.NewError("blobs.Client", "PutPageBlob", "`containerName` must be a lower-cased string.")
}
if blobName == "" {
return result, validation.NewError("blobs.Client", "PutPageBlob", "`blobName` cannot be an empty string.")
}
if input.BlobContentLengthBytes == 0 || input.BlobContentLengthBytes%512 != 0 {
return result, validation.NewError("blobs.Client", "PutPageBlob", "`input.BlobContentLengthBytes` must be aligned to a 512-byte boundary.")
}
req, err := client.PutPageBlobPreparer(ctx, accountName, containerName, blobName, input)
if err != nil {
err = autorest.NewErrorWithError(err, "blobs.Client", "PutPageBlob", nil, "Failure preparing request")
return
}
resp, err := client.PutPageBlobSender(req)
if err != nil {
result = autorest.Response{Response: resp}
err = autorest.NewErrorWithError(err, "blobs.Client", "PutPageBlob", resp, "Failure sending request")
return
}
result, err = client.PutPageBlobResponder(resp)
if err != nil {
err = autorest.NewErrorWithError(err, "blobs.Client", "PutPageBlob", resp, "Failure responding to request")
return
}
return
}
// PutPageBlobPreparer prepares the PutPageBlob request.
func (client Client) PutPageBlobPreparer(ctx context.Context, accountName, containerName, blobName string, input PutPageBlobInput) (*http.Request, error) {
pathParameters := map[string]interface{}{
"containerName": autorest.Encode("path", containerName),
"blobName": autorest.Encode("path", blobName),
}
headers := map[string]interface{}{
"x-ms-blob-type": string(PageBlob),
"x-ms-version": APIVersion,
// For a page blob or an page blob, the value of this header must be set to zero,
// as Put Blob is used only to initialize the blob
"Content-Length": 0,
// This header specifies the maximum size for the page blob, up to 8 TB.
// The page blob size must be aligned to a 512-byte boundary.
"x-ms-blob-content-length": input.BlobContentLengthBytes,
}
if input.AccessTier != nil {
headers["x-ms-access-tier"] = string(*input.AccessTier)
}
if input.BlobSequenceNumber != nil {
headers["x-ms-blob-sequence-number"] = *input.BlobSequenceNumber
}
if input.CacheControl != nil {
headers["x-ms-blob-cache-control"] = *input.CacheControl
}
if input.ContentDisposition != nil {
headers["x-ms-blob-content-disposition"] = *input.ContentDisposition
}
if input.ContentEncoding != nil {
headers["x-ms-blob-content-encoding"] = *input.ContentEncoding
}
if input.ContentLanguage != nil {
headers["x-ms-blob-content-language"] = *input.ContentLanguage
}
if input.ContentMD5 != nil {
headers["x-ms-blob-content-md5"] = *input.ContentMD5
}
if input.ContentType != nil {
headers["x-ms-blob-content-type"] = *input.ContentType
}
if input.LeaseID != nil {
headers["x-ms-lease-id"] = *input.LeaseID
}
headers = metadata.SetIntoHeaders(headers, input.MetaData)
preparer := autorest.CreatePreparer(
autorest.AsPut(),
autorest.WithBaseURL(endpoints.GetBlobEndpoint(client.BaseURI, accountName)),
autorest.WithPathParameters("/{containerName}/{blobName}", pathParameters),
autorest.WithHeaders(headers))
return preparer.Prepare((&http.Request{}).WithContext(ctx))
}
// PutPageBlobSender sends the PutPageBlob request. The method will close the
// http.Response Body if it receives an error.
func (client Client) PutPageBlobSender(req *http.Request) (*http.Response, error) {
return autorest.SendWithSender(client, req,
azure.DoRetryWithRegistration(client.Client))
}
// PutPageBlobResponder handles the response to the PutPageBlob request. The method always
// closes the http.Response Body.
func (client Client) PutPageBlobResponder(resp *http.Response) (result autorest.Response, err error) {
err = autorest.Respond(
resp,
client.ByInspecting(),
azure.WithErrorUnlessStatusCode(http.StatusCreated),
autorest.ByClosing())
result = autorest.Response{Response: resp}
return
}
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