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- // Copyright 2016 The go-ethereum Authors
- // This file is part of the go-ethereum library.
- //
- // The go-ethereum library is free software: you can redistribute it and/or modify
- // it under the terms of the GNU Lesser General Public License as published by
- // the Free Software Foundation, either version 3 of the License, or
- // (at your option) any later version.
- //
- // The go-ethereum library is distributed in the hope that it will be useful,
- // but WITHOUT ANY WARRANTY; without even the implied warranty of
- // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- // GNU Lesser General Public License for more details.
- //
- // You should have received a copy of the GNU Lesser General Public License
- // along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
- package build
- import (
- "context"
- "fmt"
- "net/url"
- "os"
- "github.com/Azure/azure-storage-blob-go/azblob"
- )
- // AzureBlobstoreConfig is an authentication and configuration struct containing
- // the data needed by the Azure SDK to interact with a specific container in the
- // blobstore.
- type AzureBlobstoreConfig struct {
- Account string // Account name to authorize API requests with
- Token string // Access token for the above account
- Container string // Blob container to upload files into
- }
- // AzureBlobstoreUpload uploads a local file to the Azure Blob Storage. Note, this
- // method assumes a max file size of 64MB (Azure limitation). Larger files will
- // need a multi API call approach implemented.
- //
- // See: https://msdn.microsoft.com/en-us/library/azure/dd179451.aspx#Anchor_3
- func AzureBlobstoreUpload(path string, name string, config AzureBlobstoreConfig) error {
- if *DryRunFlag {
- fmt.Printf("would upload %q to %s/%s/%s\n", path, config.Account, config.Container, name)
- return nil
- }
- // Create an authenticated client against the Azure cloud
- credential, err := azblob.NewSharedKeyCredential(config.Account, config.Token)
- if err != nil {
- return err
- }
- pipeline := azblob.NewPipeline(credential, azblob.PipelineOptions{})
- u, _ := url.Parse(fmt.Sprintf("https://%s.blob.core.windows.net", config.Account))
- service := azblob.NewServiceURL(*u, pipeline)
- container := service.NewContainerURL(config.Container)
- blockblob := container.NewBlockBlobURL(name)
- // Stream the file to upload into the designated blobstore container
- in, err := os.Open(path)
- if err != nil {
- return err
- }
- defer in.Close()
- _, err = blockblob.Upload(context.Background(), in, azblob.BlobHTTPHeaders{}, azblob.Metadata{}, azblob.BlobAccessConditions{})
- return err
- }
- // AzureBlobstoreList lists all the files contained within an azure blobstore.
- func AzureBlobstoreList(config AzureBlobstoreConfig) ([]azblob.BlobItem, error) {
- credential := azblob.NewAnonymousCredential()
- if len(config.Token) > 0 {
- c, err := azblob.NewSharedKeyCredential(config.Account, config.Token)
- if err != nil {
- return nil, err
- }
- credential = c
- }
- pipeline := azblob.NewPipeline(credential, azblob.PipelineOptions{})
- u, _ := url.Parse(fmt.Sprintf("https://%s.blob.core.windows.net", config.Account))
- service := azblob.NewServiceURL(*u, pipeline)
- var allBlobs []azblob.BlobItem
- // List all the blobs from the container and return them
- container := service.NewContainerURL(config.Container)
- nextMarker := azblob.Marker{}
- for nextMarker.NotDone() {
- res, err := container.ListBlobsFlatSegment(context.Background(), nextMarker, azblob.ListBlobsSegmentOptions{
- MaxResults: 5000, // The server only gives max 5K items
- })
- if err != nil {
- return nil, err
- }
- allBlobs = append(allBlobs, res.Segment.BlobItems...)
- nextMarker = res.NextMarker
- }
- return allBlobs, nil
- }
- // AzureBlobstoreDelete iterates over a list of files to delete and removes them
- // from the blobstore.
- func AzureBlobstoreDelete(config AzureBlobstoreConfig, blobs []azblob.BlobItem) error {
- if *DryRunFlag {
- for _, blob := range blobs {
- fmt.Printf("would delete %s (%s) from %s/%s\n", blob.Name, blob.Properties.LastModified, config.Account, config.Container)
- }
- return nil
- }
- // Create an authenticated client against the Azure cloud
- credential, err := azblob.NewSharedKeyCredential(config.Account, config.Token)
- if err != nil {
- return err
- }
- pipeline := azblob.NewPipeline(credential, azblob.PipelineOptions{})
- u, _ := url.Parse(fmt.Sprintf("https://%s.blob.core.windows.net", config.Account))
- service := azblob.NewServiceURL(*u, pipeline)
- container := service.NewContainerURL(config.Container)
- // Iterate over the blobs and delete them
- for _, blob := range blobs {
- blockblob := container.NewBlockBlobURL(blob.Name)
- if _, err := blockblob.Delete(context.Background(), azblob.DeleteSnapshotsOptionInclude, azblob.BlobAccessConditions{}); err != nil {
- return err
- }
- fmt.Printf("deleted %s (%s)\n", blob.Name, blob.Properties.LastModified)
- }
- return nil
- }
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