style: rename controllers to login, cancel internal/pkg

internal/dns/cloudflare/cloudflare.go

@@ -0,0 +1,67 @@
+package cloudflare
+
+import (
+	"context"
+	"errors"
+	"github.com/cloudflare/cloudflare-go"
+	"net/http"
+)
+
+type Cloudflare struct {
+	Zone  string `json:"zone" yaml:"zone"`
+	Token string `json:"token" yaml:"token"`
+}
+
+type DnsProvider struct {
+	Api          *cloudflare.API
+	TTL          int
+	ZoneResource *cloudflare.ResourceContainer
+	Cloudflare
+}
+
+func New(ttl int, conf Cloudflare, Http *http.Client) (*DnsProvider, error) {
+	var p = DnsProvider{
+		TTL:        ttl,
+		Cloudflare: conf,
+	}
+	if p.Zone == "" {
+		return nil, errors.New("cloudflare zone 不能为空")
+	}
+	if p.Token == "" {
+		return nil, errors.New("cloudflare token 不能为空")
+	}
+	p.ZoneResource = cloudflare.ZoneIdentifier(p.Zone)
+	var err error
+	p.Api, err = cloudflare.NewWithAPIToken(p.Token, cloudflare.HTTPClient(Http))
+	return &p, err
+}
+
+func (a DnsProvider) SetDomainRecord(domain, ip string) error {
+	records, _, err := a.Api.ListDNSRecords(context.Background(), a.ZoneResource, cloudflare.ListDNSRecordsParams{
+		Type: "A",
+		Name: domain,
+	})
+	if err != nil {
+		return err
+	}
+
+	if len(records) == 0 {
+		_, err = a.Api.CreateDNSRecord(context.Background(), a.ZoneResource, cloudflare.CreateDNSRecordParams{
+			Type:    "A",
+			Name:    domain,
+			Content: ip,
+			TTL:     a.TTL,
+		})
+		return err
+	} else {
+		record := records[0]
+		if record.Content == ip {
+			return nil
+		}
+		_, err = a.Api.UpdateDNSRecord(context.Background(), a.ZoneResource, cloudflare.UpdateDNSRecordParams{
+			ID:      record.ID,
+			Content: ip,
+		})
+		return err
+	}
+}