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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,38 @@ | ||
| package client | ||
|
|
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| import ( | ||
| "net/http" | ||
| ) | ||
|
|
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| // HTTPReader is a Reader that uses an HTTP client to retrieve | ||
| // databases. | ||
| type HTTPReader struct { | ||
| // client is an http client responsible of fetching database updates. | ||
| client *http.Client | ||
| // path is the request path. | ||
| path string | ||
| // accountID is used for request auth. | ||
| accountID int | ||
| // licenseKey is used for request auth. | ||
| licenseKey string | ||
| // verbose turns on/off debug logs. | ||
| verbose bool | ||
| } | ||
|
|
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| // NewHTTPReader creates a Reader that downloads database updates via | ||
| // HTTP. | ||
| func NewHTTPReader( | ||
| path string, | ||
| accountID int, | ||
| licenseKey string, | ||
| verbose bool, | ||
| httpClient *http.Client, | ||
| ) *HTTPReader { | ||
| return &HTTPReader{ | ||
| client: httpClient, | ||
| path: path, | ||
| accountID: accountID, | ||
| licenseKey: licenseKey, | ||
| verbose: verbose, | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,78 @@ | ||
| package client | ||
|
|
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| import ( | ||
| "context" | ||
| "encoding/json" | ||
| "fmt" | ||
| "io" | ||
| "log" | ||
| "net/http" | ||
| "net/url" | ||
| "strconv" | ||
|
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| "github.com/maxmind/geoipupdate/v6/internal" | ||
| "github.com/maxmind/geoipupdate/v6/internal/vars" | ||
| ) | ||
|
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| const metadataEndpoint = "%s/geoip/updates/metadata?" | ||
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| // metadata represents the metadata content for a certain database returned by the | ||
| // metadata endpoint. | ||
| type metadata struct { | ||
| Date string `json:"date"` | ||
| EditionID string `json:"edition_id"` | ||
| MD5 string `json:"md5"` | ||
| } | ||
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| func (r *HTTPReader) getMetadata(ctx context.Context, editionID string) (*metadata, error) { | ||
| params := url.Values{} | ||
| params.Add("edition_id", editionID) | ||
|
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| metadataRequestURL := fmt.Sprintf(metadataEndpoint, r.path) + params.Encode() | ||
|
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| if r.verbose { | ||
| log.Printf("Requesting metadata for %s: %s", editionID, metadataRequestURL) | ||
| } | ||
|
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| req, err := http.NewRequestWithContext(ctx, http.MethodGet, metadataRequestURL, nil) | ||
| if err != nil { | ||
| return nil, fmt.Errorf("creating metadata request: %w", err) | ||
| } | ||
| req.Header.Add("User-Agent", "geoipupdate/"+vars.Version) | ||
| req.SetBasicAuth(strconv.Itoa(r.accountID), r.licenseKey) | ||
|
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| response, err := r.client.Do(req) | ||
| if err != nil { | ||
| return nil, fmt.Errorf("performing metadata request: %w", err) | ||
| } | ||
| defer response.Body.Close() | ||
|
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| responseBody, err := io.ReadAll(response.Body) | ||
| if err != nil { | ||
| return nil, fmt.Errorf("reading metadata response body: %w", err) | ||
| } | ||
|
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| if response.StatusCode != http.StatusOK { | ||
| httpErr := internal.HTTPError{ | ||
| Body: string(responseBody), | ||
| StatusCode: response.StatusCode, | ||
| } | ||
| return nil, fmt.Errorf("unexpected HTTP status code: %w", httpErr) | ||
| } | ||
|
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| var metadataResponse struct { | ||
| Databases []metadata `json:"databases"` | ||
| } | ||
|
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| if err := json.Unmarshal(responseBody, &metadataResponse); err != nil { | ||
| return nil, fmt.Errorf("parsing metadata body: %w", err) | ||
| } | ||
|
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| if len(metadataResponse.Databases) != 1 { | ||
| return nil, fmt.Errorf("response does not contain edition %s", editionID) | ||
| } | ||
|
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| edition := metadataResponse.Databases[0] | ||
|
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| return &edition, nil | ||
| } |
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