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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,112 @@ | ||
| package provider | ||
|
|
||
| import ( | ||
| "context" | ||
| "crypto/sha256" | ||
| "fmt" | ||
| "io" | ||
| "net/http" | ||
| "os" | ||
| "path/filepath" | ||
| "strconv" | ||
|
|
||
| "github.com/sirupsen/logrus" | ||
|
|
||
| "github.com/ekristen/distillery/pkg/asset" | ||
| "github.com/ekristen/distillery/pkg/common" | ||
| ) | ||
|
|
||
| type GPGAsset struct { | ||
| *asset.Asset | ||
|
|
||
| KeyID uint64 | ||
|
|
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| Source ISource | ||
| } | ||
|
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| func (a *GPGAsset) ID() string { | ||
| return fmt.Sprintf("%s-%s", a.GetType(), a.KeyID) | ||
| } | ||
|
|
||
| func (a *GPGAsset) Path() string { | ||
| return filepath.Join("gpg", strconv.FormatUint(a.KeyID, 10)) | ||
| } | ||
|
|
||
| func (a *GPGAsset) Download(_ context.Context) error { | ||
| cacheDir, err := os.UserCacheDir() | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
|
||
| a.KeyID, err = a.MatchedAsset.GetGPGKeyID() | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
|
||
| downloadsDir := filepath.Join(cacheDir, common.NAME, "downloads") | ||
| filename := strconv.FormatUint(a.KeyID, 10) | ||
|
|
||
| assetFile := filepath.Join(downloadsDir, filename) | ||
| a.DownloadPath = assetFile | ||
| a.Extension = filepath.Ext(a.DownloadPath) | ||
|
|
||
| assetFileHash := fmt.Sprintf("%s.sha256", assetFile) | ||
| stats, err := os.Stat(assetFileHash) | ||
| if err != nil && !os.IsNotExist(err) { | ||
| return err | ||
| } | ||
|
|
||
| if stats != nil { | ||
| logrus.Debugf("file already downloaded: %s", assetFile) | ||
| return nil | ||
| } | ||
|
|
||
| logrus.Debugf("downloading asset: %s", a.KeyID) | ||
|
|
||
| url := fmt.Sprintf("https://keyserver.ubuntu.com/pks/lookup?op=get&search=0x%s", fmt.Sprintf("%X", a.KeyID)) | ||
|
|
||
| // Make the HTTP request | ||
| resp, err := http.Get(url) | ||
| if err != nil { | ||
| return fmt.Errorf("failed to download key: %w", err) | ||
| } | ||
| defer resp.Body.Close() | ||
|
|
||
| // Check if the request was successful | ||
| if resp.StatusCode != http.StatusOK { | ||
| return fmt.Errorf("failed to download key: server returned status %s", resp.Status) | ||
| } | ||
|
|
||
| hasher := sha256.New() | ||
| tmpFile, err := os.Create(assetFile) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| defer tmpFile.Close() | ||
|
|
||
| multiWriter := io.MultiWriter(tmpFile, hasher) | ||
|
|
||
| f, err := os.Create(assetFile) | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
|
||
| // Write the asset's content to the temporary file | ||
| _, err = io.Copy(multiWriter, resp.Body) | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
|
||
| if _, err := io.Copy(f, resp.Body); err != nil { | ||
| return err | ||
| } | ||
|
|
||
| logrus.Tracef("hash: %x", hasher.Sum(nil)) | ||
|
|
||
| _ = os.WriteFile(assetFileHash, []byte(fmt.Sprintf("%x", hasher.Sum(nil))), 0600) | ||
| a.Hash = string(hasher.Sum(nil)) | ||
|
|
||
| logrus.Tracef("Downloaded asset to: %s", tmpFile.Name()) | ||
|
|
||
| return nil | ||
| } | ||
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