Sentry fix: Additional rare null-scenario handling

app/internal_packages/onboarding/lib/onboarding-helpers.ts

@@ -86,14 +86,14 @@ export async function expandAccountWithCommonSettings(account: Account) {
     const imap = (template.servers.imap || [])[0] || ({} as any);
     const smtp = (template.servers.smtp || [])[0] || ({} as any);
     const defaults = {
-      imap_host: imap.hostname.replace('{domain}', domain),
+      imap_host: (imap.hostname || '').replace('{domain}', domain),
       imap_port: imap.port,
       imap_username: usernameWithFormat('email'),
       imap_password: populated.settings.imap_password,
       imap_security: imap.starttls ? 'STARTTLS' : imap.ssl ? 'SSL / TLS' : 'none',
       imap_allow_insecure_ssl: false,
 
-      smtp_host: smtp.hostname.replace('{domain}', domain),
+      smtp_host: (smtp.hostname || '').replace('{domain}', domain),
       smtp_port: smtp.port,
       smtp_username: usernameWithFormat('email'),
       smtp_password: populated.settings.smtp_password || populated.settings.imap_password,

app/internal_packages/thread-list/lib/thread-list-context-menu.ts

@@ -63,7 +63,7 @@ export default class ThreadListContextMenu {
   }
 
   findWithFrom(): TemplateItem | null {
-    if (this.threadIds.length !== 1) {
+    if (this.threadIds.length !== 1 || !this.threads[0]) {
       return null;
     }
     const first = this.threads[0];
@@ -78,7 +78,7 @@ export default class ThreadListContextMenu {
   }
 
   findWithSubject(): TemplateItem | null {
-    if (this.threadIds.length !== 1) {
+    if (this.threadIds.length !== 1 || !this.threads[0]) {
       return null;
     }
     const subject = this.threads[0].subject;
@@ -95,7 +95,7 @@ export default class ThreadListContextMenu {
   }
 
   replyItem(): TemplateItem | null {
-    if (this.threadIds.length !== 1) {
+    if (this.threadIds.length !== 1 || !this.threads[0]) {
       return null;
     }
     return {
@@ -112,7 +112,7 @@ export default class ThreadListContextMenu {
   }
 
   replyAllItem(): Promise<TemplateItem> | null {
-    if (this.threadIds.length !== 1) {
+    if (this.threadIds.length !== 1 || !this.threads[0]) {
       return null;
     }
 
@@ -138,7 +138,7 @@ export default class ThreadListContextMenu {
   }
 
   forwardItem(): TemplateItem | null {
-    if (this.threadIds.length !== 1) {
+    if (this.threadIds.length !== 1 || !this.threads[0]) {
       return null;
     }
     return {
@@ -246,7 +246,7 @@ export default class ThreadListContextMenu {
   }
 
   createMailboxLinkItem() {
-    if (this.threadIds.length !== 1) {
+    if (this.threadIds.length !== 1 || !this.threads[0]) {
       return null;
     }
 

app/src/flux/stores/database-store.ts

@@ -351,8 +351,8 @@ class DatabaseStore extends MailspringStore {
     if (!this._agent) {
       this._agentOpenQueries = {};
       this._agent = childProcess.fork(AGENT_PATH, [], { silent: true });
-      this._agent.stdout.on('data', data => console.log(data.toString()));
-      this._agent.stderr.on('data', data => console.error(data.toString()));
+      if (this._agent.stdout) this._agent.stdout.on('data', data => console.log(data.toString()));
+      if (this._agent.stderr) this._agent.stderr.on('data', data => console.error(data.toString()));
       this._agent.on('close', code => {
         debug(`Query Agent: exited with code ${code}`);
         this._agent = null;

app/src/flux/stores/draft-factory.ts

@@ -18,7 +18,8 @@ import { Thread } from '../models/Thread';
 
 let DraftStore: typeof import('./draft-store').default = null;
 
-type ReplyType = 'reply' | 'reply-all'
+export type ReplyType = 'reply' | 'reply-all';
+export type ReplyBehavior = 'prefer-existing' | 'prefer-existing-if-pristine';
 
 async function prepareBodyForQuoting(body) {
   // TODO: Fix inline images
@@ -40,8 +41,10 @@ class DraftFactory {
     // Having a consistent accountID prefix is what allows us to ensure that you
     // don't trigger your own open-tracked emails, for example. [BG NOTE "HMID"]
     //
-    const auuid = uuidv4().toUpperCase().split('-')
-    auuid.splice(0, 1, account.id.toUpperCase())
+    const auuid = uuidv4()
+      .toUpperCase()
+      .split('-');
+    auuid.splice(0, 1, account.id.toUpperCase());
 
     const defaults = {
       body: '<br/>',
@@ -154,7 +157,7 @@ class DraftFactory {
     message: Message;
     thread: Thread;
     type: ReplyType;
-    behavior: string;
+    behavior: ReplyBehavior;
   }) {
     if (!['reply', 'reply-all'].includes(type)) {
       throw new Error(`createOrUpdateDraftForReply called with ${type}, not reply or reply-all`);
@@ -262,7 +265,7 @@ class DraftFactory {
     });
   }
 
-  async candidateDraftForUpdating(message, behavior) {
+  async candidateDraftForUpdating(message: Message, behavior: ReplyBehavior) {
     if (!['prefer-existing-if-pristine', 'prefer-existing'].includes(behavior)) {
       return null;
     }
@@ -279,7 +282,6 @@ class DraftFactory {
     if (candidateDrafts.length === 0) {
       return null;
     }
-
     if (behavior === 'prefer-existing') {
       return candidateDrafts.pop();
     }
@@ -290,21 +292,16 @@ class DraftFactory {
           DraftStore.sessionForClientId(candidateDraft.headerMessageId)
         )
       );
-      for (const session of sessions) {
-        if (session.draft().pristine) {
-          return session.draft();
-        }
-      }
-      return null;
+      return sessions.map(s => s.draft()).find(d => d && d.pristine);
     }
   }
 
-  updateDraftForReply(draft: Message, { type, message }: {type: ReplyType, message: Message}) {
+  updateDraftForReply(draft: Message, { type, message }: { type: ReplyType; message: Message }) {
     if (!(message && draft)) {
       throw new Error('updateDraftForReply: Expected message and existing draft.');
     }
 
-    const updated: {to: Contact[], cc: Contact[]} = { to: [...draft.to], cc: [...draft.cc] };
+    const updated: { to: Contact[]; cc: Contact[] } = { to: [...draft.to], cc: [...draft.cc] };
     const replySet = message.participantsForReply();
     const replyAllSet = message.participantsForReplyAll();
     let targetSet = null;

app/src/flux/stores/draft-store.ts

@@ -1,7 +1,7 @@
 import { ipcRenderer } from 'electron';
 import MailspringStore from 'mailspring-store';
 import { DraftEditingSession } from './draft-editing-session';
-import DraftFactory from './draft-factory';
+import DraftFactory, { ReplyType, ReplyBehavior } from './draft-factory';
 import DatabaseStore from './database-store';
 import { SendActionsStore } from './send-actions-store';
 import FocusedContentStore from './focused-content-store';
@@ -223,8 +223,8 @@ class DraftStore extends MailspringStore {
     behavior,
   }: IThreadMessageModelOrId & {
     popout?: boolean;
-    type: 'reply' | 'reply-all';
-    behavior: string;
+    type: ReplyType;
+    behavior: ReplyBehavior;
   }) => {
     return Promise.props(this._modelifyContext({ thread, threadId, message, messageId }))
       .then(({ message: m, thread: t }) => {