4 files changed, 36 insertions, 20 deletions

diff --git a/client/src/app/shared/form-validators/user-validators.ts b/client/src/app/shared/form-validators/user-validators.ts
index a27290035..3f462ca3b 100644
--- a/client/src/app/shared/form-validators/user-validators.ts
+++ b/client/src/app/shared/form-validators/user-validators.ts
@@ -39,6 +39,17 @@ export const USER_EMAIL_VALIDATOR: BuildFormValidator = {
   }
 }
 
+export const USER_HANDLE_VALIDATOR: BuildFormValidator = {
+  VALIDATORS: [
+    Validators.required,
+    Validators.pattern(/@.+/)
+  ],
+  MESSAGES: {
+    'required': $localize`Handle is required.`,
+    'pattern': $localize`Handle must be valid (chocobozzz@example.com).`
+  }
+}
+
 export const USER_EXISTING_PASSWORD_VALIDATOR: BuildFormValidator = {
   VALIDATORS: [
     Validators.required
diff --git a/client/src/app/shared/shared-user-subscription/remote-subscribe.component.html b/client/src/app/shared/shared-user-subscription/remote-subscribe.component.html
index acfec0a8e..a00c3d1c7 100644
--- a/client/src/app/shared/shared-user-subscription/remote-subscribe.component.html
+++ b/client/src/app/shared/shared-user-subscription/remote-subscribe.component.html
@@ -15,8 +15,7 @@
   <my-help *ngIf="!interact && showHelp">
     <ng-template ptTemplate="customHtml">
       <ng-container i18n>
-        You can subscribe to the channel via any ActivityPub-capable fediverse instance.<br /><br />
-        For instance with Mastodon or Pleroma you can type the channel URL in the search box and subscribe there.
+        You can subscribe to the channel via any ActivityPub-capable fediverse instance (PeerTube, Mastodon or Pleroma for example).
       </ng-container>
     </ng-template>
   </my-help>
@@ -24,8 +23,7 @@
   <my-help *ngIf="showHelp && interact">
     <ng-template ptTemplate="customHtml">
       <ng-container i18n>
-        You can interact with this via any ActivityPub-capable fediverse instance.<br /><br />
-        For instance with Mastodon or Pleroma you can type the current URL in the search box and interact with it there.
+        You can interact with this via any ActivityPub-capable fediverse instance (PeerTube, Mastodon or Pleroma for example).
       </ng-container>
     </ng-template>
   </my-help>
diff --git a/client/src/app/shared/shared-user-subscription/remote-subscribe.component.ts b/client/src/app/shared/shared-user-subscription/remote-subscribe.component.ts
index b46c91bf8..666199523 100644
--- a/client/src/app/shared/shared-user-subscription/remote-subscribe.component.ts
+++ b/client/src/app/shared/shared-user-subscription/remote-subscribe.component.ts
@@ -1,6 +1,7 @@
 import { Component, Input, OnInit } from '@angular/core'
+import { Notifier } from '@app/core'
 import { FormReactive, FormValidatorService } from '@app/shared/shared-forms'
-import { USER_EMAIL_VALIDATOR } from '../form-validators/user-validators'
+import { USER_HANDLE_VALIDATOR } from '../form-validators/user-validators'
 
 @Component({
   selector: 'my-remote-subscribe',
@@ -13,14 +14,15 @@ export class RemoteSubscribeComponent extends FormReactive implements OnInit {
   @Input() showHelp = false
 
   constructor (
-    protected formValidatorService: FormValidatorService
+    protected formValidatorService: FormValidatorService,
+    private notifier: Notifier
   ) {
     super()
   }
 
   ngOnInit () {
     this.buildForm({
-      text: USER_EMAIL_VALIDATOR
+      text: USER_HANDLE_VALIDATOR
     })
   }
 
@@ -35,22 +37,27 @@ export class RemoteSubscribeComponent extends FormReactive implements OnInit {
     const address = this.form.value['text']
     const [ username, hostname ] = address.split('@')
 
+    const protocol = window.location.protocol
+
     // Should not have CORS error because https://tools.ietf.org/html/rfc7033#section-5
-    fetch(`https://${hostname}/.well-known/webfinger?resource=acct:${username}@${hostname}`)
+    fetch(`${protocol}//${hostname}/.well-known/webfinger?resource=acct:${username}@${hostname}`)
       .then(response => response.json())
-      .then(data => new Promise((resolve, reject) => {
-        if (data && Array.isArray(data.links)) {
-          const link: { template: string } = data.links.find((link: any) => {
-            return link && typeof link.template === 'string' && link.rel === 'http://ostatus.org/schema/1.0/subscribe'
-          })
-
-          if (link && link.template.includes('{uri}')) {
-            resolve(link.template.replace('{uri}', encodeURIComponent(this.uri)))
-          }
+      .then(data => new Promise((res, rej) => {
+        if (!data || Array.isArray(data.links) === false) return rej()
+
+        const link: { template: string } = data.links.find((link: any) => {
+          return link && typeof link.template === 'string' && link.rel === 'http://ostatus.org/schema/1.0/subscribe'
+        })
+
+        if (link && link.template.includes('{uri}')) {
+          res(link.template.replace('{uri}', encodeURIComponent(this.uri)))
         }
-        reject()
       }))
       .then(window.open)
-      .catch(err => console.error(err))
+      .catch(err => {
+        console.error(err)
+
+        this.notifier.error($localize`Cannot fetch information of this remote account`)
+      })
   }
 }
diff --git a/client/src/app/shared/shared-user-subscription/subscribe-button.component.html b/client/src/app/shared/shared-user-subscription/subscribe-button.component.html
index 607a7e113..75cfc918b 100644
--- a/client/src/app/shared/shared-user-subscription/subscribe-button.component.html
+++ b/client/src/app/shared/shared-user-subscription/subscribe-button.component.html
@@ -59,7 +59,7 @@
       </button>
 
       <button class="dropdown-item dropdown-item-neutral">
-        <div class="mb-1" i18n>Subscribe with a Mastodon account:</div>
+        <div class="mb-1" i18n>Subscribe with a remote account:</div>
         <my-remote-subscribe [showHelp]="true" [uri]="uri"></my-remote-subscribe>
       </button>