feat(dns): support vercel dns (#1049)

* feat(dns): support vercel dns

* fix: Add case-insensitive comparison for IP address

* fix(i18n): use correct message key

dns/index.go

@@ -82,6 +82,8 @@ func RunOnce() {
 			dnsSelected = &NameCheap{}
 		case "namesilo":
 			dnsSelected = &NameSilo{}
+		case "vercel":
+			dnsSelected = &Vercel{}
 		default:
 			dnsSelected = &Alidns{}
 		}
@@ -99,5 +101,4 @@ func RunOnce() {
 	}
 
 	util.ForceCompareGlobal = false
-
 }

dns/vercel.go

@@ -0,0 +1,176 @@
+package dns
+
+import (
+	"bytes"
+	"encoding/json"
+	"fmt"
+	"net/http"
+	"strconv"
+	"strings"
+
+	"github.com/jeessy2/ddns-go/v6/config"
+	"github.com/jeessy2/ddns-go/v6/util"
+)
+
+type Vercel struct {
+	DNS     config.DNS
+	Domains config.Domains
+	TTL     int
+}
+
+type ListExistingRecordsResponse struct {
+	Records []Record `json:"records"`
+}
+
+type Record struct {
+	ID        string  `json:"id"` // 记录ID
+	Slug      string  `json:"slug"`
+	Name      string  `json:"name"`  // 记录名称
+	Type      string  `json:"type"`  // 记录类型
+	Value     string  `json:"value"` // 记录值
+	Creator   string  `json:"creator"`
+	Created   int64   `json:"created"`
+	Updated   int64   `json:"updated"`
+	CreatedAt int64   `json:"createdAt"`
+	UpdatedAt int64   `json:"updatedAt"`
+	TTL       int64   `json:"ttl"`
+	Comment   *string `json:"comment,omitempty"`
+}
+
+func (v *Vercel) Init(dnsConf *config.DnsConfig, ipv4cache *util.IpCache, ipv6cache *util.IpCache) {
+	v.Domains.Ipv4Cache = ipv4cache
+	v.Domains.Ipv6Cache = ipv6cache
+	v.DNS = dnsConf.DNS
+	v.Domains.GetNewIp(dnsConf)
+
+	// Must be greater than 60
+	ttl, err := strconv.Atoi(dnsConf.TTL)
+	if err != nil {
+		ttl = 60
+	}
+	if ttl < 60 {
+		ttl = 60
+	}
+	v.TTL = ttl
+}
+
+func (v *Vercel) AddUpdateDomainRecords() (domains config.Domains) {
+	v.addUpdateDomainRecords("A")
+	v.addUpdateDomainRecords("AAAA")
+	return v.Domains
+}
+
+func (v *Vercel) addUpdateDomainRecords(recordType string) {
+	ipAddr, domains := v.Domains.GetNewIpResult(recordType)
+
+	if ipAddr == "" {
+		return
+	}
+
+	ipAddr = strings.ToLower(ipAddr)
+
+	var (
+		records []Record
+		err     error
+	)
+	for _, domain := range domains {
+		records, err = v.listExistingRecords(domain)
+		if err != nil {
+			util.Log("查询域名信息发生异常! %s", err)
+			continue
+		}
+
+		var targetRecord *Record
+		for _, record := range records {
+			if record.Name == domain.SubDomain {
+				targetRecord = &record
+				break
+			}
+		}
+
+		if targetRecord == nil {
+			err = v.createRecord(domain, recordType, ipAddr)
+		} else {
+			if strings.ToLower(targetRecord.Value) == ipAddr {
+				util.Log("你的IP %s 没有变化, 域名 %s", ipAddr, domain)
+				domain.UpdateStatus = config.UpdatedNothing
+				continue
+			} else {
+				err = v.updateRecord(targetRecord, recordType, ipAddr)
+			}
+		}
+
+		operation := "新增"
+		if targetRecord != nil {
+			operation = "更新"
+		}
+		if err == nil {
+			util.Log(operation+"域名解析 %s 成功! IP: %s", domain, ipAddr)
+			domain.UpdateStatus = config.UpdatedSuccess
+		} else {
+			util.Log(operation+"域名解析 %s 失败! 异常信息: %s", domain, err)
+			domain.UpdateStatus = config.UpdatedFailed
+		}
+	}
+}
+
+func (v *Vercel) listExistingRecords(domain *config.Domain) (records []Record, err error) {
+	var result ListExistingRecordsResponse
+	err = v.request(http.MethodGet, "https://api.vercel.com/v4/domains/"+domain.DomainName+"/records", nil, &result)
+	if err != nil {
+		return
+	}
+	records = result.Records
+	return
+}
+
+func (v *Vercel) createRecord(domain *config.Domain, recordType string, recordValue string) (err error) {
+	err = v.request(http.MethodPost, "https://api.vercel.com/v2/domains/"+domain.DomainName+"/records", map[string]interface{}{
+		"name":    domain.SubDomain,
+		"type":    recordType,
+		"value":   recordValue,
+		"ttl":     v.TTL,
+		"comment": "Created by ddns-go",
+	}, nil)
+	return
+}
+
+func (v *Vercel) updateRecord(record *Record, recordType string, recordValue string) (err error) {
+	err = v.request(http.MethodPatch, "https://api.vercel.com/v1/domains/records/"+record.ID, map[string]interface{}{
+		"type":  recordType,
+		"value": recordValue,
+		"ttl":   v.TTL,
+	}, nil)
+	return
+}
+
+func (v *Vercel) request(method, api string, data, result interface{}) (err error) {
+	var payload []byte
+	if data != nil {
+		payload, _ = json.Marshal(data)
+	}
+
+	req, err := http.NewRequest(
+		method,
+		api,
+		bytes.NewBuffer(payload),
+	)
+	if err != nil {
+		return
+	}
+	req.Header.Set("Authorization", "Bearer "+v.DNS.Secret)
+	req.Header.Set("Content-Type", "application/json")
+
+	client := util.CreateHTTPClient()
+	resp, err := client.Do(req)
+	if err != nil {
+		return err
+	}
+	if resp.StatusCode != 200 {
+		return fmt.Errorf("Vercel API returned status code %d", resp.StatusCode)
+	}
+	if result != nil {
+		err = util.GetHTTPResponse(resp, err, result)
+	}
+	return
+}

static/constant.js

@@ -135,6 +135,17 @@ const DNS_PROVIDERS = {
       "zh-cn": "<a target='_blank' href='https://www.namesilo.com/account/api-manager'>开启namesilo动态域名解析</a> <b>请注意namesilo的TTL最低1小时</b>",
     }
   },
+  vercel: {
+    name: {
+      "en": "Vercel",
+    },
+    idLabel: "",
+    secretLabel: "Token",
+    helpHtml: {
+      "en": "<a target='_blank' href='https://vercel.com/account/tokens'>Create Token</a>",
+      "zh-cn": "<a target='_blank' href='https://vercel.com/account/tokens'>创建令牌</a>",
+    }
+  },
 };
 
 const SVG_CODE = {
@@ -172,7 +183,7 @@ const I18N_MAP = {
     'domainsHelp': `
       Enter one domain per line.
       If the domain is unregistrable, manually separate it into a subdomain and a root domain by using a colon. e.g. <code>www:domain.example.com</code><br />
-   
+
       Support for <a target="blank" href="https://github.com/jeessy2/ddns-go/wiki/传递自定义参数">custom parameters</a> (Simplified Chinese)
     `,
     'Regular exp.': 'Regular exp.',
@@ -231,7 +242,7 @@ const I18N_MAP = {
     'domainsHelp': `
       每行一个域名。
       如果域名不可注册，请使用冒号手动将其分为子域名和根域名。如 <code>www:domain.example.com</code><br />
-  
+
       支持<a target="blank" href="https://github.com/jeessy2/ddns-go/wiki/传递自定义参数">自定义参数</a>
     `,
     'Regular exp.': '匹配正则表达式',