|
| 1 | +package desec |
| 2 | + |
| 3 | +import ( |
| 4 | + "context" |
| 5 | + "encoding/json" |
| 6 | + "fmt" |
| 7 | + "io" |
| 8 | + "net/http" |
| 9 | + "net/netip" |
| 10 | + "net/url" |
| 11 | + "strings" |
| 12 | + |
| 13 | + "github.com/qdm12/ddns-updater/internal/models" |
| 14 | + "github.com/qdm12/ddns-updater/internal/provider/constants" |
| 15 | + "github.com/qdm12/ddns-updater/internal/provider/errors" |
| 16 | + "github.com/qdm12/ddns-updater/internal/provider/headers" |
| 17 | + "github.com/qdm12/ddns-updater/internal/provider/utils" |
| 18 | + "github.com/qdm12/ddns-updater/pkg/publicip/ipversion" |
| 19 | +) |
| 20 | + |
| 21 | +type Provider struct { |
| 22 | + domain string |
| 23 | + host string |
| 24 | + ipVersion ipversion.IPVersion |
| 25 | + token string |
| 26 | + useProviderIP bool |
| 27 | +} |
| 28 | + |
| 29 | +func New(data json.RawMessage, domain, host string, |
| 30 | + ipVersion ipversion.IPVersion) (p *Provider, err error) { |
| 31 | + extraSettings := struct { |
| 32 | + Token string `json:"token"` |
| 33 | + UseProviderIP bool `json:"provider_ip"` |
| 34 | + }{} |
| 35 | + err = json.Unmarshal(data, &extraSettings) |
| 36 | + if err != nil { |
| 37 | + return nil, err |
| 38 | + } |
| 39 | + p = &Provider{ |
| 40 | + domain: domain, |
| 41 | + host: host, |
| 42 | + ipVersion: ipVersion, |
| 43 | + token: extraSettings.Token, |
| 44 | + useProviderIP: extraSettings.UseProviderIP, |
| 45 | + } |
| 46 | + err = p.isValid() |
| 47 | + if err != nil { |
| 48 | + return nil, err |
| 49 | + } |
| 50 | + return p, nil |
| 51 | +} |
| 52 | + |
| 53 | +func (p *Provider) isValid() error { |
| 54 | + switch { |
| 55 | + case p.token == "": |
| 56 | + return fmt.Errorf("%w", errors.ErrTokenNotSet) |
| 57 | + case p.host == "*": |
| 58 | + return fmt.Errorf("%w", errors.ErrHostWildcard) |
| 59 | + } |
| 60 | + return nil |
| 61 | +} |
| 62 | + |
| 63 | +func (p *Provider) String() string { |
| 64 | + return fmt.Sprintf("[domain: %s | host: %s | provider: deSEC]", p.domain, p.host) |
| 65 | +} |
| 66 | + |
| 67 | +func (p *Provider) Domain() string { |
| 68 | + return p.domain |
| 69 | +} |
| 70 | + |
| 71 | +func (p *Provider) Host() string { |
| 72 | + return p.host |
| 73 | +} |
| 74 | + |
| 75 | +func (p *Provider) IPVersion() ipversion.IPVersion { |
| 76 | + return p.ipVersion |
| 77 | +} |
| 78 | + |
| 79 | +func (p *Provider) Proxied() bool { |
| 80 | + return false |
| 81 | +} |
| 82 | + |
| 83 | +func (p *Provider) BuildDomainName() string { |
| 84 | + return utils.BuildDomainName(p.host, p.domain) |
| 85 | +} |
| 86 | + |
| 87 | +func (p *Provider) HTML() models.HTMLRow { |
| 88 | + return models.HTMLRow{ |
| 89 | + Domain: fmt.Sprintf("<a href=\"http://%s\">%s</a>", p.BuildDomainName(), p.BuildDomainName()), |
| 90 | + Host: p.Host(), |
| 91 | + Provider: "<a href=\"https://desec.io/\">deSEC</a>", |
| 92 | + IPVersion: p.ipVersion.String(), |
| 93 | + } |
| 94 | +} |
| 95 | + |
| 96 | +func (p *Provider) Update(ctx context.Context, client *http.Client, ip netip.Addr) (newIP netip.Addr, err error) { |
| 97 | + u := url.URL{ |
| 98 | + Scheme: "https", |
| 99 | + User: url.UserPassword(p.BuildDomainName(), p.token), |
| 100 | + Host: "update.dedyn.io", |
| 101 | + Path: "/nic/update", |
| 102 | + } |
| 103 | + values := url.Values{} |
| 104 | + values.Set("hostname", utils.BuildURLQueryHostname(p.host, p.domain)) |
| 105 | + if !p.useProviderIP { |
| 106 | + values.Set("myip", ip.String()) |
| 107 | + } |
| 108 | + u.RawQuery = values.Encode() |
| 109 | + |
| 110 | + request, err := http.NewRequestWithContext(ctx, http.MethodGet, u.String(), nil) |
| 111 | + if err != nil { |
| 112 | + return netip.Addr{}, fmt.Errorf("creating http request: %w", err) |
| 113 | + } |
| 114 | + headers.SetUserAgent(request) |
| 115 | + |
| 116 | + response, err := client.Do(request) |
| 117 | + if err != nil { |
| 118 | + return netip.Addr{}, err |
| 119 | + } |
| 120 | + defer response.Body.Close() |
| 121 | + |
| 122 | + b, err := io.ReadAll(response.Body) |
| 123 | + if err != nil { |
| 124 | + return netip.Addr{}, fmt.Errorf("reading response body: %w", err) |
| 125 | + } |
| 126 | + s := string(b) |
| 127 | + |
| 128 | + switch response.StatusCode { |
| 129 | + case http.StatusOK: |
| 130 | + case http.StatusUnauthorized: |
| 131 | + return netip.Addr{}, fmt.Errorf("%w: %s", errors.ErrAuth, utils.ToSingleLine(s)) |
| 132 | + case http.StatusNotFound: |
| 133 | + return netip.Addr{}, fmt.Errorf("%w: %s", errors.ErrHostnameNotExists, utils.ToSingleLine(s)) |
| 134 | + default: |
| 135 | + return netip.Addr{}, fmt.Errorf("%w: %d: %s", errors.ErrHTTPStatusNotValid, |
| 136 | + response.StatusCode, utils.ToSingleLine(s)) |
| 137 | + } |
| 138 | + |
| 139 | + switch { |
| 140 | + case strings.HasPrefix(s, constants.Notfqdn): |
| 141 | + return netip.Addr{}, fmt.Errorf("%w", errors.ErrHostnameNotExists) |
| 142 | + case strings.HasPrefix(s, "badrequest"): |
| 143 | + return netip.Addr{}, fmt.Errorf("%w", errors.ErrBadRequest) |
| 144 | + case strings.HasPrefix(s, "good"): |
| 145 | + return ip, nil |
| 146 | + default: |
| 147 | + return netip.Addr{}, fmt.Errorf("%w: %s", errors.ErrUnknownResponse, utils.ToSingleLine(s)) |
| 148 | + } |
| 149 | +} |
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