use new api for uploading file

CHANGELOG.md

@@ -1,5 +1,19 @@
 # Change Log
 
+## [v0.5.0] - 
+
+### Breaking Changes
+
+- **API Deprecation**: As per [Slack's latest API update](https://api.slack.com/changelog/2024-04-a-better-way-to-upload-files-is-here-to-stay), `files.upload` is now deprecated. We have updated our tool to use the new APIs, `files.getUploadURLExternal` and `files.completeUploadExternal`.
+- **Channel Specification**: It is no longer possible to specify a `channel` for file uploads. You must now use `channel-id`.
+- **Filetype Option Update**: The `-filetype` option has been modified. Please use `-snippet-type` instead for specifying the type of file when uploading to a snippet.
+
+### Changed
+
+* update Go version
+* update dependent libraries
+* update README
+
 ## [v0.4.14] - 2023-09-30
 
 ### Changed

README.md

@@ -56,10 +56,14 @@ The Slack API allows you to specify the filetype of a file when posting it as a
       config file name
 -channel string
       specify channel (unavailable for new Incoming Webhooks)
+-channel-id string
+      specify channel id (for uploading a file)
+-debug
+      debug mode (for developers)
 -filename string
       specify a file name (for uploading to snippet)
 -filetype string
-      specify a filetype (for uploading to snippet)
+      [compatible] specify a filetype for uploading to snippet. This option is maintained for compatibility. Please use -snippet-type instead.
 -icon-emoji string
       specify icon emoji (unavailable for new Incoming Webhooks)
 -interval duration
@@ -68,6 +72,8 @@ The Slack API allows you to specify the filetype of a file when posting it as a
       slack url (Incoming Webhooks URL)
 -snippet
       switch to snippet uploading mode
+-snippet-type string
+      specify a snippet_type (for uploading to snippet)
 -token string
       token (for uploading to snippet)
 -username string
@@ -92,6 +98,7 @@ The toml file contains the following information.
 url = "https://hooks.slack.com/services/**"
 token = "xoxp-xxxxx"
 channel = "#general"
+channel_id = "C12345678"
 username = "tester"
 icon_emoji = ":rocket:"
 interval = "1s"
@@ -103,13 +110,12 @@ Note:
     * You can use the following options to customize your message when posting to Slack as text: `channel`, `username`, `icon_emoji`, and `interval`.
     * Due to a recent change in the specification for Incoming Webhooks, it is currently not possible to override the `channel`, `username`, and `icon_emoji` options when posting to Slack. For more information, please refer to [this resource](https://api.slack.com/messaging/webhooks#advanced_message_formatting)
     * You can create an Incoming Webhooks URL at https://slack.com/services/new/incoming-webhook
-  * To post a file as a snippet to Slack, you will need to provide both a `token` and a `channel`.
+  * To post a file as a snippet to Slack, you will need to provide both a `token` and a `channel_id`.
     * The `username` and `icon_emoji` options will be ignored when posting a file as a snippet to Slack.
     * For instructions on how to create a token, please see the next section.
-
-Tips:
-
-  * If you want to use a different default channel for snippets, you can specify it using the `snippet_channel` option.
+    * You cannot specify a channel because the slack api support only the `channel_id`.
+    * If you don't specify `channel_id`, the file will be private. So, if you need to post a file public, you must specify `channel_id`.
+    * The Slack API can cause delays, so posting might take longer.
 
 ### How to create a token
 
@@ -149,7 +155,7 @@ Some settings for the Slack API can be provided using environment variables.
 NOTIFY_SLACK_WEBHOOK_URL
 NOTIFY_SLACK_TOKEN
 NOTIFY_SLACK_CHANNEL
-NOTIFY_SLACK_SNIPPET_CHANNEL
+NOTIFY_SLACK_CHANNEL_ID
 NOTIFY_SLACK_USERNAME
 NOTIFY_SLACK_ICON_EMOJI
 NOTIFY_SLACK_INTERVAL

internal/cli/cli.go

@@ -69,15 +69,17 @@ func (c *CLI) Run(args []string) int {
 	flags := flag.NewFlagSet("notify_slack", flag.ContinueOnError)
 	flags.SetOutput(c.errStream)
 
-	flags.StringVar(&c.conf.PrimaryChannel, "channel", "", "specify channel (unavailable for new Incoming Webhooks)")
+	flags.StringVar(&c.conf.Channel, "channel", "", "specify channel (unavailable for new Incoming Webhooks)")
+	flags.StringVar(&c.conf.ChannelID, "channel-id", "", "specify channel id (for uploading a file)")
 	flags.StringVar(&c.conf.SlackURL, "slack-url", "", "slack url (Incoming Webhooks URL)")
 	flags.StringVar(&c.conf.Token, "token", "", "token (for uploading to snippet)")
 	flags.StringVar(&c.conf.Username, "username", "", "specify username (unavailable for new Incoming Webhooks)")
 	flags.StringVar(&c.conf.IconEmoji, "icon-emoji", "", "specify icon emoji (unavailable for new Incoming Webhooks)")
 	flags.DurationVar(&c.conf.Duration, "interval", time.Second, "interval")
 	flags.StringVar(&tomlFile, "c", "", "config file name")
 	flags.StringVar(&uploadFilename, "filename", "", "specify a file name (for uploading to snippet)")
-	flags.StringVar(&filetype, "filetype", "", "specify a filetype (for uploading to snippet)")
+	flags.StringVar(&filetype, "filetype", "", "[compatible] specify a filetype for uploading to snippet. This option is maintained for compatibility. Please use -snippet-type instead.")
+	flags.StringVar(&filetype, "snippet-type", "", "specify a snippet_type (for uploading to snippet)")
 
 	flags.BoolVar(&snippetMode, "snippet", false, "switch to snippet uploading mode")
 
@@ -178,10 +180,7 @@ func (c *CLI) Run(args []string) int {
 	ctx, stop := signal.NotifyContext(context.Background(), syscall.SIGTERM, syscall.SIGINT)
 	defer stop()
 
-	channel := c.conf.PrimaryChannel
-	if channel == "" {
-		channel = c.conf.Channel
-	}
+	channel := c.conf.Channel
 
 	param := &slack.PostTextParam{
 		Channel:   channel,
@@ -216,18 +215,8 @@ func (c *CLI) Run(args []string) int {
 	return ExitCodeOK
 }
 
-func (c *CLI) uploadSnippet(ctx context.Context, filename, uploadFilename, filetype string) error {
-	channel := c.conf.PrimaryChannel
-	if channel == "" {
-		channel = c.conf.SnippetChannel
-	}
-	if channel == "" {
-		channel = c.conf.Channel
-	}
-
-	if channel == "" {
-		return fmt.Errorf("must specify channel for uploading to snippet")
-	}
+func (c *CLI) uploadSnippet(ctx context.Context, filename, uploadFilename, snippetType string) error {
+	channelID := c.conf.ChannelID
 
 	var reader io.ReadCloser
 	if filename == "" {
@@ -254,12 +243,12 @@ func (c *CLI) uploadSnippet(ctx context.Context, filename, uploadFilename, filet
 	}
 
 	param := &slack.PostFileParam{
-		Channel:  channel,
-		Filename: uploadFilename,
-		Content:  string(content),
-		Filetype: filetype,
+		ChannelID:   channelID,
+		Filename:    uploadFilename,
+		SnippetType: snippetType,
 	}
-	err = c.sClient.PostFile(ctx, param)
+
+	err = c.sClient.PostFile(ctx, param, content)
 	if err != nil {
 		return err
 	}

internal/cli/cli_test.go

@@ -9,16 +9,17 @@ import (
 
 	"github.com/catatsuy/notify_slack/internal/config"
 	"github.com/catatsuy/notify_slack/internal/slack"
+	"github.com/google/go-cmp/cmp"
 )
 
 type fakeSlackClient struct {
 	slack.Slack
 
-	FakePostFile func(ctx context.Context, param *slack.PostFileParam) error
+	FakePostFile func(ctx context.Context, param *slack.PostFileParam, content []byte) error
 }
 
-func (c *fakeSlackClient) PostFile(ctx context.Context, param *slack.PostFileParam) error {
-	return c.FakePostFile(ctx, param)
+func (c *fakeSlackClient) PostFile(ctx context.Context, param *slack.PostFileParam, content []byte) error {
+	return c.FakePostFile(ctx, param, content)
 }
 
 func (c *fakeSlackClient) PostText(ctx context.Context, param *slack.PostTextParam) error {
@@ -48,33 +49,23 @@ func TestUploadSnippet(t *testing.T) {
 		conf:    config.NewConfig(),
 	}
 
-	err := cl.uploadSnippet(context.Background(), "", "", "")
-	want := "must specify channel"
-	if err == nil || !strings.Contains(err.Error(), want) {
-		t.Errorf("error = %v; want %q", err, want)
-	}
-
-	cl.conf.Channel = "normal_channel"
-	err = cl.uploadSnippet(context.Background(), "testdata/nofile.txt", "", "")
-	want = "no such file or directory"
+	cl.conf.ChannelID = "C12345678"
+	err := cl.uploadSnippet(context.Background(), "testdata/nofile.txt", "", "")
+	want := "no such file or directory"
 	if err == nil || !strings.Contains(err.Error(), want) {
 		t.Errorf("error = %v; want %q", err, want)
 	}
 
 	cl.sClient = &fakeSlackClient{
-		FakePostFile: func(ctx context.Context, param *slack.PostFileParam) error {
-			if param.Channel != cl.conf.Channel {
-				t.Errorf("expected %s; got %s", cl.conf.Channel, param.Channel)
-			}
-
+		FakePostFile: func(ctx context.Context, param *slack.PostFileParam, content []byte) error {
 			expectedFilename := "testdata/upload.txt"
 			if param.Filename != expectedFilename {
 				t.Errorf("expected %s; got %s", expectedFilename, param.Filename)
 			}
 
 			expectedContent := "upload_test\n"
-			if param.Content != expectedContent {
-				t.Errorf("expected %q; got %q", expectedContent, param.Content)
+			if diff := cmp.Diff(expectedContent, string(content)); diff != "" {
+				t.Errorf("unexpected diff: (-want +got):\n%s", diff)
 			}
 
 			return nil
@@ -87,19 +78,15 @@ func TestUploadSnippet(t *testing.T) {
 	}
 
 	cl.sClient = &fakeSlackClient{
-		FakePostFile: func(ctx context.Context, param *slack.PostFileParam) error {
-			if param.Channel != cl.conf.Channel {
-				t.Errorf("expected %s; got %s", cl.conf.Channel, param.Channel)
-			}
-
+		FakePostFile: func(ctx context.Context, param *slack.PostFileParam, content []byte) error {
 			expectedFilename := "overwrite.txt"
 			if param.Filename != expectedFilename {
 				t.Errorf("expected %s; got %s", expectedFilename, param.Filename)
 			}
 
 			expectedContent := "upload_test\n"
-			if param.Content != expectedContent {
-				t.Errorf("expected %q; got %q", expectedContent, param.Content)
+			if diff := cmp.Diff(expectedContent, string(content)); diff != "" {
+				t.Errorf("unexpected diff: (-want +got):\n%s", diff)
 			}
 
 			return nil
@@ -112,85 +99,31 @@ func TestUploadSnippet(t *testing.T) {
 	}
 
 	cl.sClient = &fakeSlackClient{
-		FakePostFile: func(ctx context.Context, param *slack.PostFileParam) error {
-			if param.Channel != cl.conf.Channel {
-				t.Errorf("expected %s; got %s", cl.conf.Channel, param.Channel)
+		FakePostFile: func(ctx context.Context, param *slack.PostFileParam, content []byte) error {
+			if param.ChannelID != cl.conf.ChannelID {
+				t.Errorf("expected %s; got %s", cl.conf.ChannelID, param.ChannelID)
 			}
 
 			expectedFilename := "overwrite.txt"
 			if param.Filename != expectedFilename {
 				t.Errorf("expected %s; got %s", expectedFilename, param.Filename)
 			}
 
-			expectedContent := "upload_test\n"
-			if param.Content != expectedContent {
-				t.Errorf("expected %q; got %q", expectedContent, param.Content)
-			}
-
-			expectedFiletype := "diff"
-			if param.Filetype != expectedFiletype {
-				t.Errorf("expected %s; got %s", expectedFiletype, param.Filetype)
-			}
-
-			return nil
-		},
-	}
-
-	err = cl.uploadSnippet(context.Background(), "testdata/upload.txt", "overwrite.txt", "diff")
-	if err != nil {
-		t.Errorf("expected nil; got %v", err)
-	}
-
-	cl.conf.SnippetChannel = "snippet_channel"
-
-	cl.sClient = &fakeSlackClient{
-		FakePostFile: func(ctx context.Context, param *slack.PostFileParam) error {
-			if param.Channel != cl.conf.SnippetChannel {
-				t.Errorf("expected %s; got %s", cl.conf.SnippetChannel, param.Channel)
-			}
-
-			expectedFilename := "testdata/upload.txt"
-			if param.Filename != expectedFilename {
-				t.Errorf("expected %s; got %s", expectedFilename, param.Filename)
-			}
-
-			expectedContent := "upload_test\n"
-			if param.Content != expectedContent {
-				t.Errorf("expected %q; got %q", expectedContent, param.Content)
-			}
-
-			return nil
-		},
-	}
-
-	err = cl.uploadSnippet(context.Background(), "testdata/upload.txt", "", "")
-	if err != nil {
-		t.Errorf("expected nil; got %v", err)
-	}
-
-	cl.conf.PrimaryChannel = "primary_channel"
-
-	cl.sClient = &fakeSlackClient{
-		FakePostFile: func(ctx context.Context, param *slack.PostFileParam) error {
-			if param.Channel != cl.conf.PrimaryChannel {
-				t.Errorf("expected %s; got %s", cl.conf.PrimaryChannel, param.Channel)
-			}
-
-			expectedFilename := "testdata/upload.txt"
-			if param.Filename != expectedFilename {
-				t.Errorf("expected %s; got %s", expectedFilename, param.Filename)
+			expectedSnippetType := "diff"
+			if param.SnippetType != expectedSnippetType {
+				t.Errorf("expected %s; got %s", expectedSnippetType, param.SnippetType)
 			}
 
 			expectedContent := "upload_test\n"
-			if param.Content != expectedContent {
-				t.Errorf("expected %q; got %q", expectedContent, param.Content)
+			if diff := cmp.Diff(expectedContent, string(content)); diff != "" {
+				t.Errorf("unexpected diff: (-want +got):\n%s", diff)
 			}
 
 			return nil
 		},
 	}
 
-	err = cl.uploadSnippet(context.Background(), "testdata/upload.txt", "", "")
+	err = cl.uploadSnippet(context.Background(), "testdata/upload.txt", "overwrite.txt", "diff")
 	if err != nil {
 		t.Errorf("expected nil; got %v", err)
 	}

internal/config/config.go

@@ -16,9 +16,9 @@ var (
 type Config struct {
 	SlackURL       string
 	Token          string
-	PrimaryChannel string
 	Channel        string
 	SnippetChannel string
+	ChannelID      string
 	Username       string
 	IconEmoji      string
 	Duration       time.Duration
@@ -42,7 +42,13 @@ func (c *Config) LoadEnv() error {
 	}
 
 	if c.SnippetChannel == "" {
-		c.SnippetChannel = os.Getenv("NOTIFY_SLACK_SNIPPET_CHANNEL")
+		if os.Getenv("NOTIFY_SLACK_SNIPPET_CHANNEL") != "" {
+			return fmt.Errorf("the NOTIFY_SLACK_SNIPPET_CHANNEL option is deprecated")
+		}
+	}
+
+	if c.ChannelID == "" {
+		c.ChannelID = os.Getenv("NOTIFY_SLACK_CHANNEL_ID")
 	}
 
 	if c.Username == "" {
@@ -70,6 +76,7 @@ type slackConfig struct {
 	Token          string
 	Channel        string
 	SnippetChannel string `toml:"snippet_channel"`
+	ChannelID      string `toml:"channel_id"`
 	Username       string
 	IconEmoji      string `toml:"icon_emoji"`
 	Interval       string
@@ -109,16 +116,19 @@ func (c *Config) LoadTOML(filename string) error {
 			c.Channel = slackConfig.Channel
 		}
 	}
-	if c.SnippetChannel == "" {
-		if slackConfig.SnippetChannel != "" {
-			c.SnippetChannel = slackConfig.SnippetChannel
-		}
-	}
 	if c.Username == "" {
 		if slackConfig.Username != "" {
 			c.Username = slackConfig.Username
 		}
 	}
+	if slackConfig.SnippetChannel != "" {
+		return fmt.Errorf("the snippet_channel option is deprecated")
+	}
+	if c.ChannelID == "" {
+		if slackConfig.ChannelID != "" {
+			c.ChannelID = slackConfig.ChannelID
+		}
+	}
 	if c.IconEmoji == "" {
 		if slackConfig.IconEmoji != "" {
 			c.IconEmoji = slackConfig.IconEmoji