Support custom Azure publish endpoint

AUTHORS

@@ -45,3 +45,4 @@ List of contributors, in chronological order:
 * Lorenzo Bolla (https://github.com/lbolla)
 * Benj Fassbind (https://github.com/randombenj)
 * Markus Muellner (https://github.com/mmianl)
+* Chuan Liu (https://github.com/chuan)

azure/public.go

@@ -5,6 +5,7 @@ import (
 	"encoding/hex"
 	"fmt"
 	"io"
+	"net"
 	"net/http"
 	"net/url"
 	"os"
@@ -29,20 +30,47 @@ var (
 	_ aptly.PublishedStorage = (*PublishedStorage)(nil)
 )
 
+func isEmulatorEndpoint(endpoint string) bool {
+	if h, _, err := net.SplitHostPort(endpoint); err == nil {
+		endpoint = h
+	}
+	if endpoint == "localhost" {
+		return true
+	}
+	// For IPv6, there could be case where SplitHostPort fails for cannot finding port.
+	// In this case, eliminate the '[' and ']' in the URL.
+	// For details about IPv6 URL, please refer to https://tools.ietf.org/html/rfc2732
+	if endpoint[0] == '[' && endpoint[len(endpoint)-1] == ']' {
+		endpoint = endpoint[1 : len(endpoint)-1]
+	}
+	return net.ParseIP(endpoint) != nil
+}
+
 // NewPublishedStorage creates published storage from Azure storage credentials
-func NewPublishedStorage(accountName, accountKey, container, prefix string) (*PublishedStorage, error) {
+func NewPublishedStorage(accountName, accountKey, container, prefix, endpoint string) (*PublishedStorage, error) {
 	credential, err := azblob.NewSharedKeyCredential(accountName, accountKey)
 	if err != nil {
 		return nil, err
 	}
 
-	containerURL, err := url.Parse(fmt.Sprintf("https://%s.blob.core.windows.net/%s", accountName, container))
+	if endpoint == "" {
+		endpoint = "blob.core.windows.net"
+	}
+
+	var url *url.URL
+	if isEmulatorEndpoint(endpoint) {
+		url, err = url.Parse(fmt.Sprintf("http://%s/%s/%s", endpoint, accountName, container))
+	} else {
+		url, err = url.Parse(fmt.Sprintf("https://%s.%s/%s", accountName, endpoint, container))
+	}
 	if err != nil {
 		return nil, err
 	}
 
+	containerURL := azblob.NewContainerURL(*url, azblob.NewPipeline(credential, azblob.PipelineOptions{}))
+
 	result := &PublishedStorage{
-		container: azblob.NewContainerURL(*containerURL, azblob.NewPipeline(credential, azblob.PipelineOptions{})),
+		container: containerURL,
 		prefix:    prefix,
 	}
 

azure/public_test.go

@@ -15,8 +15,8 @@ import (
 )
 
 type PublishedStorageSuite struct {
-	accountName, accountKey  string
-	storage, prefixedStorage *PublishedStorage
+	accountName, accountKey, endpoint string
+	storage, prefixedStorage          *PublishedStorage
 }
 
 var _ = Suite(&PublishedStorageSuite{})
@@ -55,6 +55,7 @@ func (s *PublishedStorageSuite) SetUpSuite(c *C) {
 		println("  2. AZURE_STORAGE_ACCESS_KEY")
 		c.Skip("AZURE_STORAGE_ACCESS_KEY not set.")
 	}
+	s.endpoint = os.Getenv("AZURE_STORAGE_ENDPOINT")
 }
 
 func (s *PublishedStorageSuite) SetUpTest(c *C) {
@@ -63,13 +64,13 @@ func (s *PublishedStorageSuite) SetUpTest(c *C) {
 
 	var err error
 
-	s.storage, err = NewPublishedStorage(s.accountName, s.accountKey, container, "")
+	s.storage, err = NewPublishedStorage(s.accountName, s.accountKey, container, "", s.endpoint)
 	c.Assert(err, IsNil)
 	cnt := s.storage.container
 	_, err = cnt.Create(context.Background(), azblob.Metadata{}, azblob.PublicAccessContainer)
 	c.Assert(err, IsNil)
 
-	s.prefixedStorage, err = NewPublishedStorage(s.accountName, s.accountKey, container, prefix)
+	s.prefixedStorage, err = NewPublishedStorage(s.accountName, s.accountKey, container, prefix, s.endpoint)
 	c.Assert(err, IsNil)
 }
 
@@ -249,7 +250,7 @@ func (s *PublishedStorageSuite) TestRemoveDirsPlus(c *C) {
 
 	list, err := s.storage.Filelist("")
 	c.Check(err, IsNil)
-	c.Check(list, DeepEquals, []string{"a", "b", "c",  "lala/a b", "lala/a+b", "lala/c", "testa"})
+	c.Check(list, DeepEquals, []string{"a", "b", "c", "lala/a b", "lala/a+b", "lala/c", "testa"})
 }
 
 func (s *PublishedStorageSuite) TestRenameFile(c *C) {
@@ -354,7 +355,7 @@ func (s *PublishedStorageSuite) TestSymLink(c *C) {
 	c.Check(err, IsNil)
 	c.Check(link, Equals, "a/b")
 
-	c.Skip("copy not available in s3test")
+	c.Skip("copy not available in azure test")
 }
 
 func (s *PublishedStorageSuite) TestFileExists(c *C) {

context/context.go

@@ -417,7 +417,7 @@ func (context *AptlyContext) GetPublishedStorage(name string) aptly.PublishedSto
 
 			var err error
 			publishedStorage, err = azure.NewPublishedStorage(
-				params.AccountName, params.AccountKey, params.Container, params.Prefix)
+				params.AccountName, params.AccountKey, params.Container, params.Prefix, params.Endpoint)
 			if err != nil {
 				Fatal(err)
 			}

man/aptly.1

@@ -104,6 +104,7 @@ Configuration file is stored in JSON format (default values shown below):
       "accountKey": "",
       "container": "repo",
       "prefix": ""
+      "endpoint": "blob.core.windows.net"
     }
   }
 }

man/aptly.1.ronn.tmpl

@@ -96,6 +96,7 @@ Configuration file is stored in JSON format (default values shown below):
           "accountKey": "",
           "container": "repo",
           "prefix": ""
+          "endpoint": "blob.core.windows.net"
         }
       }
     }

utils/config.go

@@ -82,6 +82,7 @@ type AzurePublishRoot struct {
 	AccountKey  string `json:"accountKey"`
 	Container   string `json:"container"`
 	Prefix      string `json:"prefix"`
+	Endpoint    string `json:"endpoint"`
 }
 
 // Config is configuration for aptly, shared by all modules

utils/config_test.go

@@ -124,7 +124,8 @@ func (s *ConfigSuite) TestSaveConfig(c *C) {
 		"      \"accountName\": \"\",\n"+
 		"      \"accountKey\": \"\",\n"+
 		"      \"container\": \"repo\",\n"+
-		"      \"prefix\": \"\"\n"+
+		"      \"prefix\": \"\",\n"+
+		"      \"endpoint\": \"\"\n"+
 		"    }\n"+
 		"  },\n"+
 		"  \"AsyncAPI\": false,\n"+