Adding slur filter.

- Fixes #45

3 files changed, 4 insertions, 1 deletions

diff --git a/ui/src/components/community-form.tsx b/ui/src/components/community-form.tsx
index b5b222c6..056c29dc 100644
--- a/ui/src/components/community-form.tsx
+++ b/ui/src/components/community-form.tsx
@@ -155,6 +155,7 @@ export class CommunityForm extends Component<CommunityFormProps, CommunityFormSt
     if (msg.error) {
       alert(msg.error);
       this.state.loading = false;
+      this.setState(this.state);
       return;
     } else if (op == UserOperation.ListCategories){
       let res: ListCategoriesResponse = msg;
diff --git a/ui/src/components/login.tsx b/ui/src/components/login.tsx
index 2443369e..933b08be 100644
--- a/ui/src/components/login.tsx
+++ b/ui/src/components/login.tsx
@@ -97,7 +97,7 @@ export class Login extends Component<any, State> {
         <div class="form-group row">
           <label class="col-sm-2 col-form-label">Username</label>
           <div class="col-sm-10">
-            <input type="text" class="form-control" value={this.state.registerForm.username} onInput={linkEvent(this, this.handleRegisterUsernameChange)} required minLength={3} />
+            <input type="text" class="form-control" value={this.state.registerForm.username} onInput={linkEvent(this, this.handleRegisterUsernameChange)} required minLength={3} pattern="[a-zA-Z0-9_]+" />
           </div>
         </div>
         <div class="form-group row">
diff --git a/ui/src/components/post-form.tsx b/ui/src/components/post-form.tsx
index 9845a1b1..03ace380 100644
--- a/ui/src/components/post-form.tsx
+++ b/ui/src/components/post-form.tsx
@@ -151,7 +151,9 @@ export class PostForm extends Component<PostFormProps, PostFormState> {
   parseMessage(msg: any) {
     let op: UserOperation = msgOp(msg);
     if (msg.error) {
+      alert(msg.error);
       this.state.loading = false;
+      this.setState(this.state);
       return;
     } else if (op == UserOperation.ListCommunities) {
       let res: ListCommunitiesResponse = msg;