32 lines
864 B
Go
32 lines
864 B
Go
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package httpx
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import (
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"context"
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"crypto/sha256"
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"fmt"
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)
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// FetchResource fetches the specified resource and returns it.
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func (c Client) FetchResource(ctx context.Context, URLPath string) ([]byte, error) {
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request, err := c.NewRequest(ctx, "GET", URLPath, nil, nil)
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if err != nil {
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return nil, err
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}
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return c.Do(request)
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}
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// FetchResourceAndVerify fetches and verifies a specific resource.
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func (c Client) FetchResourceAndVerify(ctx context.Context, URL, SHA256Sum string) ([]byte, error) {
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c.Logger.Debugf("httpx: expected SHA256: %s", SHA256Sum)
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data, err := c.FetchResource(ctx, URL)
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if err != nil {
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return nil, err
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}
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s := fmt.Sprintf("%x", sha256.Sum256(data))
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c.Logger.Debugf("httpx: real SHA256: %s", s)
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if SHA256Sum != s {
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return nil, fmt.Errorf("httpx: SHA256 mismatch: got %s and expected %s", s, SHA256Sum)
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}
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return data, nil
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}
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