49 lines
1.1 KiB
Go
49 lines
1.1 KiB
Go
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package catalog
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import "context"
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// Client composes signed loading, protocol validation and target filtering.
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type Client struct {
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loader *Loader
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parser Parser
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target Target
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}
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// NewClient creates the formal Catalog loading path. Protocol validation is
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// installed on Loader so invalid remote data cannot replace the usable cache.
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func NewClient(
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verifier Verifier,
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fetcher Fetcher,
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cache Cache,
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target Target,
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) *Client {
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parser := Parser{ExpectedChannel: target.Channel}
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return &Client{
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loader: NewLoader(verifier, fetcher, cache, parser),
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parser: parser,
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target: target,
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}
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}
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// Load returns a verified, validated and target-filtered Catalog.
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func (client *Client) Load(ctx context.Context) (Catalog, error) {
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result, err := client.loader.Load(ctx)
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if err != nil {
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return Catalog{}, err
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}
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manifest, err := client.parser.Parse(result.Document)
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if err != nil {
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return Catalog{}, err
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}
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entries, err := Filter(manifest, client.target)
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if err != nil {
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return Catalog{}, err
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}
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return Catalog{
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Manifest: manifest,
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Entries: entries,
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Source: result.Source,
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Warning: result.Warning,
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}, nil
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}
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