feat: add ExtractCertificatesFromPEM util func

internal/pkg/core/deployer/providers/edgio-applications/edgio_applications.go

@@ -2,13 +2,13 @@
 
 import (
 	"context"
-	"encoding/pem"
 	"errors"
 
 	xerrors "github.com/pkg/errors"
 
 	"github.com/usual2970/certimate/internal/pkg/core/deployer"
 	"github.com/usual2970/certimate/internal/pkg/core/logger"
+	"github.com/usual2970/certimate/internal/pkg/utils/certs"
 	edgsdk "github.com/usual2970/certimate/internal/pkg/vendors/edgio-sdk/applications/v7"
 	edgsdkDtos "github.com/usual2970/certimate/internal/pkg/vendors/edgio-sdk/applications/v7/dtos"
 )
@@ -57,7 +57,10 @@ func NewWithLogger(config *EdgioApplicationsDeployerConfig, logger logger.Logger
 
 func (d *EdgioApplicationsDeployer) Deploy(ctx context.Context, certPem string, privkeyPem string) (*deployer.DeployResult, error) {
 	// 提取 Edgio 所需的服务端证书和中间证书内容
-	privateCertPem, intermediateCertPem := extractCertChains(certPem)
+	privateCertPem, intermediateCertPem, err := certs.ExtractCertificatesFromPEM(certPem)
+	if err != nil {
+		return nil, err
+	}
 
 	// 上传 TLS 证书
 	// REF: https://docs.edg.io/rest_api/#tag/tls-certs/operation/postConfigV01TlsCerts
@@ -81,32 +84,3 @@ func createSdkClient(clientId, clientSecret string) (*edgsdk.EdgioClient, error)
 	client := edgsdk.NewEdgioClient(clientId, clientSecret, "", "")
 	return client, nil
 }
-
-func extractCertChains(certPem string) (primaryCertPem string, intermediateCertPem string) {
-	pemBlocks := make([]*pem.Block, 0)
-	pemData := []byte(certPem)
-	for {
-		block, rest := pem.Decode(pemData)
-		if block == nil {
-			break
-		}
-
-		pemBlocks = append(pemBlocks, block)
-		pemData = rest
-	}
-
-	primaryCertPem = ""
-	intermediateCertPem = ""
-
-	if len(pemBlocks) > 0 {
-		primaryCertPem = string(pem.EncodeToMemory(pemBlocks[0]))
-	}
-
-	if len(pemBlocks) > 1 {
-		for i := 1; i < len(pemBlocks); i++ {
-			intermediateCertPem += string(pem.EncodeToMemory(pemBlocks[i]))
-		}
-	}
-
-	return primaryCertPem, intermediateCertPem
-}