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calendar upgrade functionality.

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fiatjaf
2023-09-27 20:32:50 -03:00
parent b6c735501d
commit 3e702d758e
3 changed files with 346 additions and 220 deletions
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68
stamp.go
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@@ -29,33 +29,53 @@ func Stamp(ctx context.Context, calendarUrl string, digest [32]byte) (*Timestamp
}
resp.Body.Close()
return parseCalendarServerResponse(NewBuffer(full), digest[:])
seq, err := parseCalendarServerResponse(NewBuffer(full))
if err != nil {
return nil, fmt.Errorf("failed to parse response from '%s': %w", calendarUrl, err)
}
return &Timestamp{
Digest: digest[:],
Instructions: []Sequence{seq},
}, nil
}
func ReadFromFile(data []byte) (*Timestamp, error) {
return parseOTSFile(NewBuffer(data))
}
// func Upgrade(ctx context.Context, calendarUrl string) (*Timestamp, error) {
// body := bytes.NewBuffer(digest[:])
// req, err := http.NewRequestWithContext(ctx, "POST", normalizeUrl(calendarUrl)+"/timestamp/" +, nil)
// if err != nil {
// return nil, err
// }
//
// req.Header.Add("User-Agent", "github.com/fiatjaf/opentimestamps")
// req.Header.Add("Accept", "application/vnd.opentimestamps.v1")
// req.Header.Add("Content-Type", "application/x-www-form-urlencoded")
// resp, err := http.DefaultClient.Do(req)
// if err != nil {
// return nil, fmt.Errorf("'%s' request failed: %w", calendarUrl, err)
// }
//
// full, err := io.ReadAll(resp.Body)
// if err != nil {
// return nil, fmt.Errorf("failed to read response from '%s': %w", calendarUrl, err)
// }
// resp.Body.Close()
//
// return parseCalendarServerResponse(NewBuffer(full), digest[:])
// }
func (seq Sequence) Upgrade(ctx context.Context, initial []byte) (Sequence, error) {
result := ComputeSequence(initial, seq)
attestation := seq[len(seq)-1]
url := fmt.Sprintf("%s/timestamp/%x", normalizeUrl(attestation.CalendarServerURL), result)
req, err := http.NewRequestWithContext(ctx, "GET", url, nil)
if err != nil {
return nil, err
}
req.Header.Add("User-Agent", "github.com/fiatjaf/opentimestamps")
req.Header.Add("Accept", "application/vnd.opentimestamps.v1")
req.Header.Add("Content-Type", "application/x-www-form-urlencoded")
resp, err := http.DefaultClient.Do(req)
if err != nil {
return nil, fmt.Errorf("'%s' request failed: %w", attestation.CalendarServerURL, err)
}
if resp.StatusCode >= 300 {
return nil, fmt.Errorf("'%s' returned %d", attestation.CalendarServerURL, resp.StatusCode)
}
body, err := io.ReadAll(resp.Body)
if err != nil {
return nil, fmt.Errorf("failed to read response from '%s': %w", attestation.CalendarServerURL, err)
}
resp.Body.Close()
newSeq, err := parseCalendarServerResponse(NewBuffer(body))
if err != nil {
return nil, fmt.Errorf("failed to parse response from '%s': %w", attestation.CalendarServerURL, err)
}
return newSeq, nil
}