Cloudflare createdomain (#113)

* fixing #112

* fixing build issue

* typo

* adding missing commits from master

* fixing gofmt validation errors

* fixing github pull request sugestions

* fixing build issue

* adding debug info

* adding more debug

* tweaking code based on pull request comments

* fixing error

docs/_providers/cloudflare.md

@@ -49,9 +49,9 @@ D("example.tld", REG_NAMECOM, DnsProvider(CFLARE),
 
 DNSControl depends on a Cloudflare Global API Key that's available under "My Settings".
 
-
 ## New domains
 
 If a domain does not exist in your CloudFlare account, DNSControl
 will *not* automatically add it. You'll need to do that via the
-control panel manually.
+control panel manually or via the command `dnscontrol create-domains`
+-command.

providers/cloudflare/cloudflareProvider.go

@@ -227,6 +227,11 @@ func newCloudflare(m map[string]string, metadata json.RawMessage) (providers.DNS
 		return nil, fmt.Errorf("Cloudflare apikey and apiuser must be provided.")
 	}
 
+	err := api.fetchDomainList()
+	if err != nil {
+		return nil, err
+	}
+
 	if len(metadata) > 0 {
 		parsedMeta := &struct {
 			IPConversions string   `json:"ip_conversions"`
@@ -300,3 +305,13 @@ func getProxyMetadata(r *models.RecordConfig) map[string]string {
 		"proxy": fmt.Sprint(proxied),
 	}
 }
+
+func (c *CloudflareApi) EnsureDomainExists(domain string) error {
+	if _, ok := c.domainIndex[domain]; ok {
+		return nil
+	}
+	var id string
+	id, err := c.createZone(domain)
+	fmt.Printf("Added zone for %s to Cloudflare account: %s\n", domain, id)
+	return err
+}

providers/cloudflare/rest.go

@@ -88,6 +88,27 @@ func (c *CloudflareApi) deleteRec(rec *cfRecord, domainID string) *models.Correc
 	}
 }
 
+func (c *CloudflareApi) createZone(domainName string) (string, error) {
+	type createZone struct {
+		Name string `json:"name"`
+	}
+	var id string
+	cz := &createZone{
+		Name: domainName}
+	buf := &bytes.Buffer{}
+	encoder := json.NewEncoder(buf)
+	if err := encoder.Encode(cz); err != nil {
+		return "", err
+	}
+	req, err := http.NewRequest("POST", zonesURL, buf)
+	if err != nil {
+		return "", err
+	}
+	c.setHeaders(req)
+	id, err = handleActionResponse(http.DefaultClient.Do(req))
+	return id, err
+}
+
 func (c *CloudflareApi) createRec(rec *models.RecordConfig, domainID string) []*models.Correction {
 	type createRecord struct {
 		Name     string `json:"name"`