[GH-1032] Fix NPE if reporter is blank during issue creation

server/issue_parser.go

@@ -24,9 +24,9 @@ func mdKeySummaryLink(issue *jira.Issue, instance Instance) string {
 	return fmt.Sprintf("[%s: %s (%s)](%s%s)", issue.Key, issue.Fields.Summary, issue.Fields.Status.Name, instance.GetJiraBaseURL(), "/browse/"+issue.Key)
 }
 
-func reporterSummary(issue *jira.Issue) string {
-	avatarLink := fmt.Sprintf("![avatar](%s =30x30)", issue.Fields.Reporter.AvatarUrls.One6X16)
-	reporterSummary := avatarLink + " " + issue.Fields.Reporter.Name
+func reporterSummary(reporter *jira.User) string {
+	avatarLink := fmt.Sprintf("![avatar](%s =30x30)", reporter.AvatarUrls.One6X16)
+	reporterSummary := avatarLink + " " + reporter.Name
 	return reporterSummary
 }
 
@@ -103,11 +103,13 @@ func asSlackAttachment(instance Instance, client Client, issue *jira.Issue, show
 		})
 	}
 
-	fields = append(fields, &model.SlackAttachmentField{
-		Title: "Reporter",
-		Value: reporterSummary(issue),
-		Short: true,
-	})
+	if issue.Fields.Reporter != nil {
+		fields = append(fields, &model.SlackAttachmentField{
+			Title: "Reporter",
+			Value: reporterSummary(issue.Fields.Reporter),
+			Short: true,
+		})
+	}
 
 	var actions []*model.PostAction
 	var err error

server/issue_parser_test.go

@@ -0,0 +1,160 @@
+// See License for license information.
+// Copyright (c) 2017-present Mattermost, Inc. All Rights Reserved.
+
+package main
+
+import (
+	"fmt"
+	"testing"
+
+	jira "github.com/andygrunwald/go-jira"
+	"github.com/mattermost/mattermost/server/public/model"
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestAsSlackAttachment(t *testing.T) {
+	instance := testInstance2
+	client := testClient{}
+
+	for name, tc := range map[string]struct {
+		issue              *jira.Issue
+		showActions        bool
+		expectedAttachment *model.SlackAttachment
+	}{
+		"minimum data": {
+			issue: &jira.Issue{
+				Key: "MM-57208",
+				Fields: &jira.IssueFields{
+					Summary: "",
+					Status: &jira.Status{
+						Name: "Open",
+					},
+				},
+			},
+			expectedAttachment: &model.SlackAttachment{
+				Text:  "[MM-57208:  (Open)](jiraurl2/browse/MM-57208)",
+				Color: "#95b7d0",
+			},
+		},
+		"with summary": {
+			issue: &jira.Issue{
+				Key: "MM-57208",
+				Fields: &jira.IssueFields{
+					Summary: "A Summary",
+					Status: &jira.Status{
+						Name: "Open",
+					},
+				},
+			},
+			expectedAttachment: &model.SlackAttachment{
+				Text:  "[MM-57208: A Summary (Open)](jiraurl2/browse/MM-57208)",
+				Color: "#95b7d0",
+			},
+		},
+		"with Assignee, Priority and Reporter": {
+			issue: &jira.Issue{
+				Key: "MM-57208",
+				Fields: &jira.IssueFields{
+					Priority: &jira.Priority{
+						Name: "Very important",
+					},
+					Assignee: &jira.User{
+						DisplayName: "The Assignee",
+					},
+					Description: "A Description",
+					Summary:     "A Summary",
+					Reporter: &jira.User{
+						Name: "The Reporter",
+						AvatarUrls: jira.AvatarUrls{
+							One6X16: "https://example.org/icon",
+						},
+					},
+					Status: &jira.Status{
+						Name: "Open",
+					},
+				},
+			},
+			expectedAttachment: &model.SlackAttachment{
+				Text:  "[MM-57208: A Summary (Open)](jiraurl2/browse/MM-57208)\n\nA Description\n",
+				Color: "#95b7d0",
+				Fields: []*model.SlackAttachmentField{
+					{
+						Title: "Assignee",
+						Value: "The Assignee",
+						Short: true,
+					},
+					{
+						Title: "Priority",
+						Value: "Very important",
+						Short: true,
+					},
+					{
+						Title: "Reporter",
+						Value: "![avatar](https://example.org/icon =30x30) The Reporter",
+						Short: true,
+					},
+				},
+			},
+		},
+		"with actions": {
+			issue: &jira.Issue{
+				ID:  "some ID",
+				Key: "MM-57208",
+				Fields: &jira.IssueFields{
+					Summary: "",
+					Status: &jira.Status{
+						Name: "Open",
+					},
+				},
+			},
+			showActions: true,
+			expectedAttachment: &model.SlackAttachment{
+				Text:  "[MM-57208:  (Open)](jiraurl2/browse/MM-57208)",
+				Color: "#95b7d0",
+				Actions: []*model.PostAction{
+					{
+						Type: "select",
+						Name: "Transition issue",
+						Options: []*model.PostActionOptions{
+							{
+								Value: "To Do",
+							},
+							{
+								Value: "In Progress",
+							},
+							{
+								Value: "In Testing",
+							},
+						},
+						Integration: &model.PostActionIntegration{
+							URL: fmt.Sprintf("/plugins/%s/api/v2/transition", manifest.Id),
+							Context: map[string]any{
+								"issue_key":   "some ID",
+								"instance_id": testInstance2.GetID().String(),
+							},
+						},
+					},
+					{
+						Type: "button",
+						Name: "Share publicly",
+						Integration: &model.PostActionIntegration{
+							URL: fmt.Sprintf("/plugins/%s/api/v2/share-issue-publicly", manifest.Id),
+							Context: map[string]any{
+								"issue_key":   "some ID",
+								"instance_id": testInstance2.GetID().String(),
+							},
+						},
+					},
+				},
+			},
+		},
+	} {
+		t.Run(name, func(t *testing.T) {
+			attachments, err := asSlackAttachment(instance, client, tc.issue, tc.showActions)
+			assert.NoError(t, err)
+			require.Len(t, attachments, 1)
+			assert.Equal(t, tc.expectedAttachment, attachments[0])
+		})
+	}
+}