fix

Author: wxiaoguang

models/repo/repo.go

@@ -602,25 +602,32 @@ func ComposeHTTPSCloneURL(owner, repo string) string {
 
 func ComposeSSHCloneURL(ownerName, repoName string) string {
 	sshUser := setting.SSH.User
-
-	// if we have a ipv6 literal we need to put brackets around it
-	// for the git cloning to work.
 	sshDomain := setting.SSH.Domain
-	ip := net.ParseIP(setting.SSH.Domain)
-	if ip != nil && ip.To4() == nil {
-		sshDomain = "[" + setting.SSH.Domain + "]"
+	sshPort := setting.SSH.Port
+
+	// if the domain already contains a port, just use it (many users already use it this way)
+	if _, _, err := net.SplitHostPort(sshDomain); err == nil {
+		return fmt.Sprintf("ssh://%s@%s/%s/%s.git", sshUser, sshDomain, url.PathEscape(ownerName), url.PathEscape(repoName))
 	}
 
-	if setting.SSH.Port != 22 {
-		return fmt.Sprintf("ssh://%s@%s/%s/%s.git", sshUser,
-			net.JoinHostPort(setting.SSH.Domain, strconv.Itoa(setting.SSH.Port)),
-			url.PathEscape(ownerName),
-			url.PathEscape(repoName))
+	// non-standard port, it must use full URI
+	if sshPort != 22 {
+		if strings.HasPrefix(sshDomain, "[") && strings.HasSuffix(sshDomain, "]") {
+			sshDomain = sshDomain[1 : len(sshDomain)-1]
+		}
+		sshHost := net.JoinHostPort(sshDomain, strconv.Itoa(sshPort))
+		return fmt.Sprintf("ssh://%s@%s/%s/%s.git", sshUser, sshHost, url.PathEscape(ownerName), url.PathEscape(repoName))
+	}
+
+	// for standard port, it can use a shorter URI (without the port)
+	sshHost := sshDomain
+	if ip := net.ParseIP(sshHost); ip != nil && ip.To4() == nil && !strings.HasPrefix(sshHost, "[") {
+		sshHost = "[" + sshHost + "]" // for IPv6 address, wrap it with brackets
 	}
 	if setting.Repository.UseCompatSSHURI {
-		return fmt.Sprintf("ssh://%s@%s/%s/%s.git", sshUser, sshDomain, url.PathEscape(ownerName), url.PathEscape(repoName))
+		return fmt.Sprintf("ssh://%s@%s/%s/%s.git", sshUser, sshHost, url.PathEscape(ownerName), url.PathEscape(repoName))
 	}
-	return fmt.Sprintf("%s@%s:%s/%s.git", sshUser, sshDomain, url.PathEscape(ownerName), url.PathEscape(repoName))
+	return fmt.Sprintf("%s@%s:%s/%s.git", sshUser, sshHost, url.PathEscape(ownerName), url.PathEscape(repoName))
 }
 
 func (repo *Repository) cloneLink(isUncyclo bool) *CloneLink {

models/repo/repo_test.go

@@ -12,6 +12,8 @@ import (
 	"code.gitea.io/gitea/models/unittest"
 	user_model "code.gitea.io/gitea/models/user"
 	"code.gitea.io/gitea/modules/markup"
+	"code.gitea.io/gitea/modules/setting"
+	"code.gitea.io/gitea/modules/test"
 	"code.gitea.io/gitea/modules/util"
 
 	"github.com/stretchr/testify/assert"
@@ -186,3 +188,47 @@ func TestGetRepositoryByURL(t *testing.T) {
 		test(t, "try.gitea.io:user2/repo2.git")
 	})
 }
+
+func TestComposeSSHCloneURL(t *testing.T) {
+	defer test.MockVariableValue(&setting.SSH, setting.SSH)()
+	defer test.MockVariableValue(&setting.Repository, setting.Repository)()
+
+	setting.SSH.User = "git"
+
+	// test SSH_DOMAIN with port
+	setting.SSH.Domain = "domain:123"
+	setting.SSH.Port = 22
+	setting.Repository.UseCompatSSHURI = false
+	assert.Equal(t, "ssh://git@domain:123/user/repo.git", repo_model.ComposeSSHCloneURL("user", "repo"))
+	setting.SSH.Domain = "[::1]:123"
+	setting.SSH.Port = 456
+	setting.Repository.UseCompatSSHURI = true
+	assert.Equal(t, "ssh://git@[::1]:123/user/repo.git", repo_model.ComposeSSHCloneURL("user", "repo"))
+
+	// test SSH_DOMAIN without port
+	setting.SSH.Domain = "domain"
+	setting.SSH.Port = 22
+	setting.Repository.UseCompatSSHURI = false
+	assert.Equal(t, "git@domain:user/repo.git", repo_model.ComposeSSHCloneURL("user", "repo"))
+	setting.Repository.UseCompatSSHURI = true
+	assert.Equal(t, "ssh://git@domain/user/repo.git", repo_model.ComposeSSHCloneURL("user", "repo"))
+	// test SSH_DOMAIN without port and use non-standard SSH port
+	setting.SSH.Port = 123
+	setting.Repository.UseCompatSSHURI = false
+	assert.Equal(t, "ssh://git@domain:123/user/repo.git", repo_model.ComposeSSHCloneURL("user", "repo"))
+	setting.Repository.UseCompatSSHURI = true
+	assert.Equal(t, "ssh://git@domain:123/user/repo.git", repo_model.ComposeSSHCloneURL("user", "repo"))
+
+	// test IPv6 SSH_DOMAIN without port
+	setting.Repository.UseCompatSSHURI = false
+	setting.SSH.Domain = "[::1]"
+	setting.SSH.Port = 22
+	assert.Equal(t, "git@[::1]:user/repo.git", repo_model.ComposeSSHCloneURL("user", "repo"))
+	setting.SSH.Port = 123
+	assert.Equal(t, "ssh://git@[::1]:123/user/repo.git", repo_model.ComposeSSHCloneURL("user", "repo"))
+	setting.SSH.Domain = "::1"
+	setting.SSH.Port = 22
+	assert.Equal(t, "git@[::1]:user/repo.git", repo_model.ComposeSSHCloneURL("user", "repo"))
+	setting.SSH.Port = 123
+	assert.Equal(t, "ssh://git@[::1]:123/user/repo.git", repo_model.ComposeSSHCloneURL("user", "repo"))
+}