236 lines
7.4 KiB
Go
236 lines
7.4 KiB
Go
package deployment
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import (
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"errors"
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"fmt"
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"net"
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"path"
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"regexp"
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"strings"
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"time"
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)
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type WebServer string
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const (
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WebServerNginx WebServer = "nginx"
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WebServerCaddy WebServer = "caddy"
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WebServerApache WebServer = "apache"
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WebServerCustom WebServer = "custom"
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)
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const (
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DefaultCertificatePath = "/ssl/{域名}/{证书类型}/cert.pem"
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DefaultCertificateChainPath = "/ssl/{域名}/{证书类型}/fullchain.pem"
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DefaultPrivateKeyPath = "/ssl/{域名}/{证书类型}/key.pem"
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)
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var serverPathPlaceholderPattern = regexp.MustCompile(`\{[^{}]+\}`)
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type Server struct {
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ID string `json:"id"`
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Name string `json:"name"`
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Address string `json:"address"`
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Port int `json:"port"`
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Username string `json:"username"`
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PrivateKeyRef string `json:"private_key_ref"`
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HostKeyFingerprint string `json:"host_key_fingerprint"`
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CertificatePath string `json:"certificate_path"`
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PrivateKeyPath string `json:"private_key_path"`
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CertificateChainPath string `json:"certificate_chain_path"`
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WebServer WebServer `json:"web_server"`
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ValidationCommand []string `json:"validation_command,omitempty"`
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ReloadCommand []string `json:"reload_command,omitempty"`
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CreatedAt time.Time `json:"created_at"`
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UpdatedAt time.Time `json:"updated_at"`
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}
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func (s Server) Normalize() Server {
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s.ID = strings.TrimSpace(s.ID)
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s.Name = strings.TrimSpace(s.Name)
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s.Address = strings.TrimSpace(s.Address)
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s.Username = strings.TrimSpace(s.Username)
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s.PrivateKeyRef = strings.TrimSpace(s.PrivateKeyRef)
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s.HostKeyFingerprint = strings.TrimSpace(s.HostKeyFingerprint)
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s.CertificatePath = strings.TrimSpace(s.CertificatePath)
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s.PrivateKeyPath = strings.TrimSpace(s.PrivateKeyPath)
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s.CertificateChainPath = strings.TrimSpace(s.CertificateChainPath)
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if s.CertificatePath == "" {
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s.CertificatePath = DefaultCertificatePath
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}
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if s.CertificateChainPath == "" {
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s.CertificateChainPath = DefaultCertificateChainPath
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}
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if s.PrivateKeyPath == "" {
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s.PrivateKeyPath = DefaultPrivateKeyPath
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}
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s.WebServer = WebServer(strings.ToLower(strings.TrimSpace(string(s.WebServer))))
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if s.Port == 0 {
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s.Port = 22
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}
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if len(s.ReloadCommand) == 0 {
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s.ReloadCommand = DefaultReloadCommand(s.WebServer)
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}
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if len(s.ValidationCommand) == 0 {
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s.ValidationCommand = DefaultValidationCommand(s.WebServer)
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}
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for index := range s.ValidationCommand {
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s.ValidationCommand[index] = strings.TrimSpace(s.ValidationCommand[index])
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}
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for index := range s.ReloadCommand {
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s.ReloadCommand[index] = strings.TrimSpace(s.ReloadCommand[index])
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}
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return s
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}
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func ResolveServerPaths(server Server, domainName, certificateType string) (Server, error) {
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server = server.Normalize()
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domainDirectory, err := normalizeDomainDirectory(domainName)
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if err != nil {
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return Server{}, err
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}
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certificateType = strings.ToLower(strings.TrimSpace(certificateType))
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switch certificateType {
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case "single", "wildcard", "san":
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default:
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return Server{}, fmt.Errorf("证书类型无法用于远程路径：%s", certificateType)
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}
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replacer := strings.NewReplacer(
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"{域名}", domainDirectory,
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"{domain}", domainDirectory,
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"{证书类型}", certificateType,
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"{certificate_type}", certificateType,
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)
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server.CertificatePath, err = resolveServerPathTemplate("远程证书路径", server.CertificatePath, replacer)
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if err != nil {
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return Server{}, err
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}
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server.CertificateChainPath, err = resolveServerPathTemplate("远程完整证书链路径", server.CertificateChainPath, replacer)
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if err != nil {
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return Server{}, err
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}
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server.PrivateKeyPath, err = resolveServerPathTemplate("远程私钥路径", server.PrivateKeyPath, replacer)
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if err != nil {
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return Server{}, err
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}
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if err := validateDeploymentPaths([]remoteFile{
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{path: server.CertificatePath},
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{path: server.CertificateChainPath},
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{path: server.PrivateKeyPath},
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}); err != nil {
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return Server{}, err
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}
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return server, nil
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}
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func normalizeDomainDirectory(value string) (string, error) {
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value = strings.ToLower(strings.TrimSpace(value))
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value = strings.TrimPrefix(value, "*.")
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if value == "" || value == "." || value == ".." || strings.ContainsAny(value, "/\\\x00\r\n") {
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return "", fmt.Errorf("域名无法用于远程路径：%s", value)
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}
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return value, nil
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}
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func resolveServerPathTemplate(label, value string, replacer *strings.Replacer) (string, error) {
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resolved := replacer.Replace(strings.TrimSpace(value))
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if placeholder := serverPathPlaceholderPattern.FindString(resolved); placeholder != "" {
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return "", fmt.Errorf("%s包含不支持的占位符：%s", label, placeholder)
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}
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cleaned := RemotePath(resolved)
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if cleaned == "" || cleaned == "." {
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return "", fmt.Errorf("%s无效", label)
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}
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if !strings.HasPrefix(cleaned, "/") {
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return "", fmt.Errorf("%s必须是绝对路径", label)
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}
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return cleaned, nil
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}
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func (s Server) Validate() error {
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s = s.Normalize()
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if s.ID == "" {
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return errors.New("服务器 ID 不能为空")
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}
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if s.Name == "" {
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return errors.New("服务器名称不能为空")
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}
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if s.Address == "" || net.ParseIP(s.Address) == nil && strings.ContainsAny(s.Address, " /\\") {
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return errors.New("服务器地址无效")
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}
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if s.Port < 1 || s.Port > 65535 {
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return errors.New("SSH 端口无效")
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}
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if s.Username == "" {
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return errors.New("SSH 用户不能为空")
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}
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if s.PrivateKeyRef == "" {
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return errors.New("SSH 私钥引用不能为空")
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}
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if s.HostKeyFingerprint == "" {
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return errors.New("SSH 主机指纹不能为空")
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}
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if s.CertificatePath == "" || s.PrivateKeyPath == "" || s.CertificateChainPath == "" {
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return errors.New("远程证书路径不能为空")
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}
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if _, err := ResolveServerPaths(s, "example.com", "single"); err != nil {
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return err
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}
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if s.WebServer != WebServerNginx && s.WebServer != WebServerCaddy && s.WebServer != WebServerApache && s.WebServer != WebServerCustom {
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return fmt.Errorf("网站服务类型无效：%s", s.WebServer)
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}
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if err := validateServerCommand("配置校验", s.ValidationCommand); err != nil {
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return err
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}
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if err := validateServerCommand("reload", s.ReloadCommand); err != nil {
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return err
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}
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return nil
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}
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func DefaultValidationCommand(webServer WebServer) []string {
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switch WebServer(strings.ToLower(strings.TrimSpace(string(webServer)))) {
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case WebServerNginx:
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return []string{"nginx", "-t"}
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case WebServerCaddy:
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return []string{"caddy", "validate", "--config", "/etc/caddy/Caddyfile"}
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case WebServerApache:
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return []string{"apachectl", "configtest"}
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default:
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return nil
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}
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}
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func DefaultReloadCommand(webServer WebServer) []string {
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switch WebServer(strings.ToLower(strings.TrimSpace(string(webServer)))) {
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case WebServerNginx:
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return []string{"nginx", "-s", "reload"}
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case WebServerCaddy:
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return []string{"caddy", "reload"}
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case WebServerApache:
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return []string{"apachectl", "-k", "graceful"}
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default:
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return nil
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}
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}
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func validateServerCommand(label string, command []string) error {
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if len(command) == 0 || command[0] == "" {
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return fmt.Errorf("%s命令不能为空", label)
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}
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for _, argument := range command {
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if argument == "" || strings.ContainsAny(argument, "\x00\r\n") {
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return fmt.Errorf("%s命令参数无效", label)
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}
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}
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return nil
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}
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func RemotePath(value string) string {
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value = strings.TrimSpace(value)
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if strings.ContainsAny(value, "\x00\r\n") {
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return ""
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}
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return path.Clean(strings.ReplaceAll(value, "\\", "/"))
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}
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