130 lines
		
	
	
		
			2.9 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
			
		
		
	
	
			130 lines
		
	
	
		
			2.9 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
package reporter
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import (
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	"context"
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	"encoding/json"
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	"fmt"
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	"time"
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	"github.com/Azure/azure-sdk-for-go/sdk/storage/azblob"
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	"golang.org/x/xerrors"
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	"github.com/future-architect/vuls/config"
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	"github.com/future-architect/vuls/models"
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)
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// AzureBlobWriter writes results to AzureBlob
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type AzureBlobWriter struct {
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	FormatJSON        bool
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	FormatFullText    bool
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	FormatOneLineText bool
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	FormatList        bool
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	Gzip              bool
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	config.AzureConf
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}
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// Write results to Azure Blob storage
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func (w AzureBlobWriter) Write(rs ...models.ScanResult) (err error) {
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	if len(rs) == 0 {
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		return nil
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	}
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	cli, err := w.getBlobClient()
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	if err != nil {
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		return err
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	}
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	if w.FormatOneLineText {
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		timestr := rs[0].ScannedAt.Format(time.RFC3339)
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		k := fmt.Sprintf(timestr + "/summary.txt")
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		text := formatOneLineSummary(rs...)
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		b := []byte(text)
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		if err := w.createBlockBlob(cli, k, b, w.Gzip); err != nil {
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			return err
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		}
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	}
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	for _, r := range rs {
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		key := r.ReportKeyName()
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		if w.FormatJSON {
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			k := key + ".json"
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			var b []byte
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			if b, err = json.Marshal(r); err != nil {
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				return xerrors.Errorf("Failed to Marshal to JSON: %w", err)
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			}
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			if err := w.createBlockBlob(cli, k, b, w.Gzip); err != nil {
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				return err
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			}
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		}
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		if w.FormatList {
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			k := key + "_short.txt"
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			b := []byte(formatList(r))
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			if err := w.createBlockBlob(cli, k, b, w.Gzip); err != nil {
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				return err
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			}
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		}
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		if w.FormatFullText {
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			k := key + "_full.txt"
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			b := []byte(formatFullPlainText(r))
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			if err := w.createBlockBlob(cli, k, b, w.Gzip); err != nil {
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				return err
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			}
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		}
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	}
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	return
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}
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// Validate check the existence of Azure storage container
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func (w AzureBlobWriter) Validate() error {
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	cli, err := w.getBlobClient()
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	if err != nil {
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		return err
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	}
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	pager := cli.NewListContainersPager(nil)
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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 xerrors.Errorf("Failed to next page. err: %w", err)
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		}
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		for _, con := range page.ContainerItems {
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			if *con.Name == w.ContainerName {
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				return nil
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			}
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		}
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	}
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	return xerrors.Errorf("Container not found. Container: %s", w.ContainerName)
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}
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func (w AzureBlobWriter) getBlobClient() (*azblob.Client, error) {
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	cred, err := azblob.NewSharedKeyCredential(w.AccountName, w.AccountKey)
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	if err != nil {
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		return nil, xerrors.Errorf("Failed to create SharedKeyCredential. err: %w", err)
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	}
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	client, err := azblob.NewClientWithSharedKeyCredential(w.Endpoint, cred, nil)
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	if err != nil {
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		return nil, xerrors.Errorf("Failed to create Client. err: %w", err)
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	}
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	return client, nil
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}
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func (w AzureBlobWriter) createBlockBlob(cli *azblob.Client, k string, b []byte, gzip bool) error {
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	var err error
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	if gzip {
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		if b, err = gz(b); err != nil {
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			return err
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		}
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		k += ".gz"
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	}
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	if _, err := cli.UploadBuffer(context.TODO(), w.ContainerName, k, b, nil); err != nil {
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		return xerrors.Errorf("Failed to upload data to %s/%s, err: %w", w.ContainerName, k, err)
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	}
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	return nil
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}
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