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