12 files changed, 260 insertions, 12 deletions

diff --git a/client/src/app/+about/about-instance/about-instance.component.html b/client/src/app/+about/about-instance/about-instance.component.html
index 37ff795f5..8c700752e 100644
--- a/client/src/app/+about/about-instance/about-instance.component.html
+++ b/client/src/app/+about/about-instance/about-instance.component.html
@@ -1,7 +1,9 @@
 <div class="row">
   <div class="col-md-12 col-xl-6">
-    <div i18n class="about-instance-title">
-      About {{ instanceName }} instance
+    <div class="about-instance-title">
+      <div i18n>About {{ instanceName }} instance</div>
+
+      <div *ngIf="isContactFormEnabled" (click)="openContactModal()" i18n role="button" class="contact-admin">Contact administrator</div>
     </div>
 
     <div class="short-description">
@@ -46,3 +48,5 @@
     <my-instance-features-table></my-instance-features-table>
   </div>
 </div>
+
+<my-contact-admin-modal #contactAdminModal></my-contact-admin-modal>
diff --git a/client/src/app/+about/about-instance/about-instance.component.scss b/client/src/app/+about/about-instance/about-instance.component.scss
index b451e85aa..75cf57322 100644
--- a/client/src/app/+about/about-instance/about-instance.component.scss
+++ b/client/src/app/+about/about-instance/about-instance.component.scss
@@ -2,9 +2,19 @@
 @import '_mixins';
 
 .about-instance-title {
-  font-size: 20px;
-  font-weight: bold;
-  margin-bottom: 15px;
+  display: flex;
+  justify-content: space-between;
+
+  & > div {
+    font-size: 20px;
+    font-weight: bold;
+    margin-bottom: 15px;
+  }
+
+  & > .contact-admin {
+    @include peertube-button;
+    @include orange-button;
+  }
 }
 
 .section-title {
diff --git a/client/src/app/+about/about-instance/about-instance.component.ts b/client/src/app/+about/about-instance/about-instance.component.ts
index 36e7a8e5b..d3ee8a1e4 100644
--- a/client/src/app/+about/about-instance/about-instance.component.ts
+++ b/client/src/app/+about/about-instance/about-instance.component.ts
@@ -1,7 +1,9 @@
-import { Component, OnInit } from '@angular/core'
+import { Component, OnInit, ViewChild } from '@angular/core'
 import { Notifier, ServerService } from '@app/core'
 import { MarkdownService } from '@app/videos/shared'
 import { I18n } from '@ngx-translate/i18n-polyfill'
+import { ContactAdminModalComponent } from '@app/+about/about-instance/contact-admin-modal.component'
+import { InstanceService } from '@app/shared/instance/instance.service'
 
 @Component({
   selector: 'my-about-instance',
@@ -9,6 +11,8 @@ import { I18n } from '@ngx-translate/i18n-polyfill'
   styleUrls: [ './about-instance.component.scss' ]
 })
 export class AboutInstanceComponent implements OnInit {
+  @ViewChild('contactAdminModal') contactAdminModal: ContactAdminModalComponent
+
   shortDescription = ''
   descriptionHTML = ''
   termsHTML = ''
@@ -16,6 +20,7 @@ export class AboutInstanceComponent implements OnInit {
   constructor (
     private notifier: Notifier,
     private serverService: ServerService,
+    private instanceService: InstanceService,
     private markdownService: MarkdownService,
     private i18n: I18n
   ) {}
@@ -32,8 +37,12 @@ export class AboutInstanceComponent implements OnInit {
     return this.serverService.getConfig().signup.allowed
   }
 
+  get isContactFormEnabled () {
+    return this.serverService.getConfig().email.enabled && this.serverService.getConfig().contactForm.enabled
+  }
+
   ngOnInit () {
-    this.serverService.getAbout()
+    this.instanceService.getAbout()
       .subscribe(
         res => {
           this.shortDescription = res.instance.shortDescription
@@ -45,4 +54,8 @@ export class AboutInstanceComponent implements OnInit {
       )
   }
 
+  openContactModal () {
+    return this.contactAdminModal.show()
+  }
+
 }
diff --git a/client/src/app/+about/about-instance/contact-admin-modal.component.html b/client/src/app/+about/about-instance/contact-admin-modal.component.html
new file mode 100644
index 000000000..2b3fb32f3
--- /dev/null
+++ b/client/src/app/+about/about-instance/contact-admin-modal.component.html
@@ -0,0 +1,50 @@
+<ng-template #modal>
+  <div class="modal-header">
+    <h4 i18n class="modal-title">Contact {{ instanceName }} administrator</h4>
+    <span class="close" aria-label="Close" role="button" (click)="hide()"></span>
+  </div>
+
+  <div class="modal-body">
+
+    <form novalidate [formGroup]="form" (ngSubmit)="sendForm()">
+      <div class="form-group">
+        <label i18n for="fromName">Your name</label>
+        <input
+          type="text" id="fromName"
+          formControlName="fromName" [ngClass]="{ 'input-error': formErrors.fromName }"
+        >
+        <div *ngIf="formErrors.fromName" class="form-error">{{ formErrors.fromName }}</div>
+      </div>
+
+      <div class="form-group">
+        <label i18n for="fromEmail">Your email</label>
+        <input
+          type="text" id="fromEmail"
+          formControlName="fromEmail" [ngClass]="{ 'input-error': formErrors['fromEmail'] }"
+        >
+        <div *ngIf="formErrors.fromEmail" class="form-error">{{ formErrors.fromEmail }}</div>
+      </div>
+
+      <div class="form-group">
+        <label i18n for="body">Your message</label>
+        <textarea id="body" formControlName="body" [ngClass]="{ 'input-error': formErrors['body'] }">
+        </textarea>
+        <div *ngIf="formErrors.body" class="form-error">{{ formErrors.body }}</div>
+      </div>
+
+      <div *ngIf="error" class="alert alert-danger">{{ error }}</div>
+
+      <div class="form-group inputs">
+        <span i18n class="action-button action-button-cancel" (click)="hide()">
+          Cancel
+        </span>
+
+        <input
+          type="submit" i18n-value value="Submit" class="action-button-submit"
+          [disabled]="!form.valid"
+        >
+      </div>
+    </form>
+
+  </div>
+</ng-template>
diff --git a/client/src/app/+about/about-instance/contact-admin-modal.component.scss b/client/src/app/+about/about-instance/contact-admin-modal.component.scss
new file mode 100644
index 000000000..260d77888
--- /dev/null
+++ b/client/src/app/+about/about-instance/contact-admin-modal.component.scss
@@ -0,0 +1,11 @@
+@import 'variables';
+@import 'mixins';
+
+input[type=text] {
+  @include peertube-input-text(340px);
+  display: block;
+}
+
+textarea {
+  @include peertube-textarea(100%, 200px);
+}
diff --git a/client/src/app/+about/about-instance/contact-admin-modal.component.ts b/client/src/app/+about/about-instance/contact-admin-modal.component.ts
new file mode 100644
index 000000000..2f707bd53
--- /dev/null
+++ b/client/src/app/+about/about-instance/contact-admin-modal.component.ts
@@ -0,0 +1,72 @@
+import { Component, OnInit, ViewChild } from '@angular/core'
+import { Notifier } from '@app/core'
+import { I18n } from '@ngx-translate/i18n-polyfill'
+import { FormValidatorService } from '@app/shared/forms/form-validators/form-validator.service'
+import { NgbModal } from '@ng-bootstrap/ng-bootstrap'
+import { NgbModalRef } from '@ng-bootstrap/ng-bootstrap/modal/modal-ref'
+import { FormReactive, InstanceValidatorsService } from '@app/shared'
+import { InstanceService } from '@app/shared/instance/instance.service'
+
+@Component({
+  selector: 'my-contact-admin-modal',
+  templateUrl: './contact-admin-modal.component.html',
+  styleUrls: [ './contact-admin-modal.component.scss' ]
+})
+export class ContactAdminModalComponent extends FormReactive implements OnInit {
+  @ViewChild('modal') modal: NgbModal
+
+  error: string
+
+  private openedModal: NgbModalRef
+
+  constructor (
+    protected formValidatorService: FormValidatorService,
+    private modalService: NgbModal,
+    private instanceValidatorsService: InstanceValidatorsService,
+    private instanceService: InstanceService,
+    private notifier: Notifier,
+    private i18n: I18n
+  ) {
+    super()
+  }
+
+  ngOnInit () {
+    this.buildForm({
+      fromName: this.instanceValidatorsService.FROM_NAME,
+      fromEmail: this.instanceValidatorsService.FROM_EMAIL,
+      body: this.instanceValidatorsService.BODY
+    })
+  }
+
+  show () {
+    this.openedModal = this.modalService.open(this.modal, { keyboard: false })
+  }
+
+  hide () {
+    this.form.reset()
+    this.error = undefined
+
+    this.openedModal.close()
+    this.openedModal = null
+  }
+
+  sendForm () {
+    const fromName = this.form.value['fromName']
+    const fromEmail = this.form.value[ 'fromEmail' ]
+    const body = this.form.value[ 'body' ]
+
+    this.instanceService.contactAdministrator(fromEmail, fromName, body)
+        .subscribe(
+          () => {
+            this.notifier.success(this.i18n('Your message has been sent.'))
+            this.hide()
+          },
+
+          err => {
+            this.error = err.status === 403
+              ? this.i18n('You already sent this form recently')
+              : err.message
+          }
+        )
+  }
+}
diff --git a/client/src/app/+about/about.module.ts b/client/src/app/+about/about.module.ts
index ff6e8ef41..9c6b29740 100644
--- a/client/src/app/+about/about.module.ts
+++ b/client/src/app/+about/about.module.ts
@@ -5,6 +5,7 @@ import { AboutComponent } from './about.component'
 import { SharedModule } from '../shared'
 import { AboutInstanceComponent } from '@app/+about/about-instance/about-instance.component'
 import { AboutPeertubeComponent } from '@app/+about/about-peertube/about-peertube.component'
+import { ContactAdminModalComponent } from '@app/+about/about-instance/contact-admin-modal.component'
 
 @NgModule({
   imports: [
@@ -15,7 +16,8 @@ import { AboutPeertubeComponent } from '@app/+about/about-peertube/about-peertub
   declarations: [
     AboutComponent,
     AboutInstanceComponent,
-    AboutPeertubeComponent
+    AboutPeertubeComponent,
+    ContactAdminModalComponent
   ],
 
   exports: [
diff --git a/client/src/app/core/server/server.service.ts b/client/src/app/core/server/server.service.ts
index 5351f18d5..f33e6f20c 100644
--- a/client/src/app/core/server/server.service.ts
+++ b/client/src/app/core/server/server.service.ts
@@ -13,6 +13,7 @@ import { sortBy } from '@app/shared/misc/utils'
 
 @Injectable()
 export class ServerService {
+  private static BASE_SERVER_URL = environment.apiUrl + '/api/v1/server/'
   private static BASE_CONFIG_URL = environment.apiUrl + '/api/v1/config/'
   private static BASE_VIDEO_URL = environment.apiUrl + '/api/v1/videos/'
   private static BASE_LOCALE_URL = environment.apiUrl + '/client/locales/'
@@ -147,10 +148,6 @@ export class ServerService {
     return this.videoPrivacies
   }
 
-  getAbout () {
-    return this.http.get<About>(ServerService.BASE_CONFIG_URL + '/about')
-  }
-
   private loadVideoAttributeEnum (
     attributeName: 'categories' | 'licences' | 'languages' | 'privacies',
     hashToPopulate: VideoConstant<string | number>[],
diff --git a/client/src/app/shared/forms/form-validators/index.ts b/client/src/app/shared/forms/form-validators/index.ts
index 74e385b3d..fdcbedb71 100644
--- a/client/src/app/shared/forms/form-validators/index.ts
+++ b/client/src/app/shared/forms/form-validators/index.ts
@@ -1,6 +1,7 @@
 export * from './custom-config-validators.service'
 export * from './form-validator.service'
 export * from './host'
+export * from './instance-validators.service'
 export * from './login-validators.service'
 export * from './reset-password-validators.service'
 export * from './user-validators.service'
diff --git a/client/src/app/shared/forms/form-validators/instance-validators.service.ts b/client/src/app/shared/forms/form-validators/instance-validators.service.ts
new file mode 100644
index 000000000..5bb852858
--- /dev/null
+++ b/client/src/app/shared/forms/form-validators/instance-validators.service.ts
@@ -0,0 +1,48 @@
+import { I18n } from '@ngx-translate/i18n-polyfill'
+import { Validators } from '@angular/forms'
+import { BuildFormValidator } from '@app/shared'
+import { Injectable } from '@angular/core'
+
+@Injectable()
+export class InstanceValidatorsService {
+  readonly FROM_EMAIL: BuildFormValidator
+  readonly FROM_NAME: BuildFormValidator
+  readonly BODY: BuildFormValidator
+
+  constructor (private i18n: I18n) {
+
+    this.FROM_EMAIL = {
+      VALIDATORS: [ Validators.required, Validators.email ],
+      MESSAGES: {
+        'required': this.i18n('Email is required.'),
+        'email': this.i18n('Email must be valid.')
+      }
+    }
+
+    this.FROM_NAME = {
+      VALIDATORS: [
+        Validators.required,
+        Validators.minLength(1),
+        Validators.maxLength(120)
+      ],
+      MESSAGES: {
+        'required': this.i18n('Your name is required.'),
+        'minlength': this.i18n('Your name must be at least 1 character long.'),
+        'maxlength': this.i18n('Your name cannot be more than 120 characters long.')
+      }
+    }
+
+    this.BODY = {
+      VALIDATORS: [
+        Validators.required,
+        Validators.minLength(3),
+        Validators.maxLength(5000)
+      ],
+      MESSAGES: {
+        'required': this.i18n('A message is required.'),
+        'minlength': this.i18n('The message must be at least 3 characters long.'),
+        'maxlength': this.i18n('The message cannot be more than 5000 characters long.')
+      }
+    }
+  }
+}
diff --git a/client/src/app/shared/instance/instance.service.ts b/client/src/app/shared/instance/instance.service.ts
new file mode 100644
index 000000000..61321ecce
--- /dev/null
+++ b/client/src/app/shared/instance/instance.service.ts
@@ -0,0 +1,36 @@
+import { catchError } from 'rxjs/operators'
+import { HttpClient } from '@angular/common/http'
+import { Injectable } from '@angular/core'
+import { environment } from '../../../environments/environment'
+import { RestExtractor, RestService } from '../rest'
+import { About } from '../../../../../shared/models/server'
+
+@Injectable()
+export class InstanceService {
+  private static BASE_CONFIG_URL = environment.apiUrl + '/api/v1/config'
+  private static BASE_SERVER_URL = environment.apiUrl + '/api/v1/server'
+
+  constructor (
+    private authHttp: HttpClient,
+    private restService: RestService,
+    private restExtractor: RestExtractor
+  ) {
+  }
+
+  getAbout () {
+    return this.authHttp.get<About>(InstanceService.BASE_CONFIG_URL + '/about')
+               .pipe(catchError(res => this.restExtractor.handleError(res)))
+  }
+
+  contactAdministrator (fromEmail: string, fromName: string, message: string) {
+    const body = {
+      fromEmail,
+      fromName,
+      body: message
+    }
+
+    return this.authHttp.post(InstanceService.BASE_SERVER_URL + '/contact', body)
+               .pipe(catchError(res => this.restExtractor.handleError(res)))
+
+  }
+}
diff --git a/client/src/app/shared/shared.module.ts b/client/src/app/shared/shared.module.ts
index c99c87c00..d1320aeec 100644
--- a/client/src/app/shared/shared.module.ts
+++ b/client/src/app/shared/shared.module.ts
@@ -37,6 +37,7 @@ import {
   LoginValidatorsService,
   ReactiveFileComponent,
   ResetPasswordValidatorsService,
+  InstanceValidatorsService,
   TextareaAutoResizeDirective,
   UserValidatorsService,
   VideoAbuseValidatorsService,
@@ -65,6 +66,7 @@ import { TopMenuDropdownComponent } from '@app/shared/menu/top-menu-dropdown.com
 import { UserHistoryService } from '@app/shared/users/user-history.service'
 import { UserNotificationService } from '@app/shared/users/user-notification.service'
 import { UserNotificationsComponent } from '@app/shared/users/user-notifications.component'
+import { InstanceService } from '@app/shared/instance/instance.service'
 
 @NgModule({
   imports: [
@@ -185,8 +187,10 @@ import { UserNotificationsComponent } from '@app/shared/users/user-notifications
     OverviewService,
     VideoChangeOwnershipValidatorsService,
     VideoAcceptOwnershipValidatorsService,
+    InstanceValidatorsService,
     BlocklistService,
     UserHistoryService,
+    InstanceService,
 
     I18nPrimengCalendarService,
     ScreenService,