We don't need services anymore for validators

47 files changed, 739 insertions, 940 deletions

diff --git a/client/src/app/shared/form-validators/abuse-validators.ts b/client/src/app/shared/form-validators/abuse-validators.ts
new file mode 100644
index 000000000..75bfacf01
--- /dev/null
+++ b/client/src/app/shared/form-validators/abuse-validators.ts
@@ -0,0 +1,29 @@
+import { Validators } from '@angular/forms'
+import { BuildFormValidator } from './form-validator.model'
+
+export const ABUSE_REASON_VALIDATOR: BuildFormValidator = {
+  VALIDATORS: [Validators.required, Validators.minLength(2), Validators.maxLength(3000)],
+  MESSAGES: {
+    'required': $localize`Report reason is required.`,
+    'minlength': $localize`Report reason must be at least 2 characters long.`,
+    'maxlength': $localize`Report reason cannot be more than 3000 characters long.`
+  }
+}
+
+export const ABUSE_MODERATION_COMMENT_VALIDATOR: BuildFormValidator = {
+  VALIDATORS: [Validators.required, Validators.minLength(2), Validators.maxLength(3000)],
+  MESSAGES: {
+    'required': $localize`Moderation comment is required.`,
+    'minlength': $localize`Moderation comment must be at least 2 characters long.`,
+    'maxlength': $localize`Moderation comment cannot be more than 3000 characters long.`
+  }
+}
+
+export const ABUSE_MESSAGE_VALIDATOR: BuildFormValidator = {
+  VALIDATORS: [Validators.required, Validators.minLength(2), Validators.maxLength(3000)],
+  MESSAGES: {
+    'required': $localize`Abuse message is required.`,
+    'minlength': $localize`Abuse message must be at least 2 characters long.`,
+    'maxlength': $localize`Abuse message cannot be more than 3000 characters long.`
+  }
+}
diff --git a/client/src/app/shared/form-validators/batch-domains-validators.ts b/client/src/app/shared/form-validators/batch-domains-validators.ts
new file mode 100644
index 000000000..423d1337f
--- /dev/null
+++ b/client/src/app/shared/form-validators/batch-domains-validators.ts
@@ -0,0 +1,60 @@
+import { AbstractControl, FormControl, ValidatorFn, Validators } from '@angular/forms'
+import { BuildFormValidator } from './form-validator.model'
+import { validateHost } from './host'
+
+export function getNotEmptyHosts (hosts: string) {
+  return hosts
+    .split('\n')
+    .filter((host: string) => host && host.length !== 0) // Eject empty hosts
+}
+
+const validDomains: ValidatorFn = (control: FormControl) => {
+  if (!control.value) return null
+
+  const newHostsErrors = []
+  const hosts = getNotEmptyHosts(control.value)
+
+  for (const host of hosts) {
+    if (validateHost(host) === false) {
+      newHostsErrors.push($localize`${host} is not valid`)
+    }
+  }
+
+  /* Is not valid. */
+  if (newHostsErrors.length !== 0) {
+    return {
+      'validDomains': {
+        reason: 'invalid',
+        value: newHostsErrors.join('. ') + '.'
+      }
+    }
+  }
+
+  /* Is valid. */
+  return null
+}
+
+const isHostsUnique: ValidatorFn = (control: AbstractControl) => {
+  if (!control.value) return null
+
+  const hosts = getNotEmptyHosts(control.value)
+
+  if (hosts.every((host: string) => hosts.indexOf(host) === hosts.lastIndexOf(host))) {
+    return null
+  } else {
+    return {
+      'uniqueDomains': {
+        reason: 'invalid'
+      }
+    }
+  }
+}
+
+export const DOMAINS_VALIDATOR: BuildFormValidator = {
+  VALIDATORS: [Validators.required, validDomains, isHostsUnique],
+  MESSAGES: {
+    'required': $localize`Domain is required.`,
+    'validDomains': $localize`Domains entered are invalid.`,
+    'uniqueDomains': $localize`Domains entered contain duplicates.`
+  }
+}
diff --git a/client/src/app/shared/form-validators/custom-config-validators.ts b/client/src/app/shared/form-validators/custom-config-validators.ts
new file mode 100644
index 000000000..41b3cbba9
--- /dev/null
+++ b/client/src/app/shared/form-validators/custom-config-validators.ts
@@ -0,0 +1,80 @@
+import { Validators } from '@angular/forms'
+import { BuildFormValidator } from './form-validator.model'
+
+export const INSTANCE_NAME_VALIDATOR: BuildFormValidator = {
+  VALIDATORS: [Validators.required],
+  MESSAGES: {
+    'required': $localize`Instance name is required.`
+  }
+}
+
+export const INSTANCE_SHORT_DESCRIPTION_VALIDATOR: BuildFormValidator = {
+  VALIDATORS: [Validators.max(250)],
+  MESSAGES: {
+    'max': $localize`Short description should not be longer than 250 characters.`
+  }
+}
+
+export const SERVICES_TWITTER_USERNAME_VALIDATOR: BuildFormValidator = {
+  VALIDATORS: [Validators.required],
+  MESSAGES: {
+    'required': $localize`Twitter username is required.`
+  }
+}
+
+export const CACHE_PREVIEWS_SIZE_VALIDATOR: BuildFormValidator = {
+  VALIDATORS: [Validators.required, Validators.min(1), Validators.pattern('[0-9]+')],
+  MESSAGES: {
+    'required': $localize`Previews cache size is required.`,
+    'min': $localize`Previews cache size must be greater than 1.`,
+    'pattern': $localize`Previews cache size must be a number.`
+  }
+}
+
+export const CACHE_CAPTIONS_SIZE_VALIDATOR: BuildFormValidator = {
+  VALIDATORS: [Validators.required, Validators.min(1), Validators.pattern('[0-9]+')],
+  MESSAGES: {
+    'required': $localize`Captions cache size is required.`,
+    'min': $localize`Captions cache size must be greater than 1.`,
+    'pattern': $localize`Captions cache size must be a number.`
+  }
+}
+
+export const SIGNUP_LIMIT_VALIDATOR: BuildFormValidator = {
+  VALIDATORS: [Validators.required, Validators.min(-1), Validators.pattern('-?[0-9]+')],
+  MESSAGES: {
+    'required': $localize`Signup limit is required.`,
+    'min': $localize`Signup limit must be greater than 1.`,
+    'pattern': $localize`Signup limit must be a number.`
+  }
+}
+
+export const ADMIN_EMAIL_VALIDATOR: BuildFormValidator = {
+  VALIDATORS: [Validators.required, Validators.email],
+  MESSAGES: {
+    'required': $localize`Admin email is required.`,
+    'email': $localize`Admin email must be valid.`
+  }
+}
+
+export const TRANSCODING_THREADS_VALIDATOR: BuildFormValidator = {
+  VALIDATORS: [Validators.required, Validators.min(0)],
+  MESSAGES: {
+    'required': $localize`Transcoding threads is required.`,
+    'min': $localize`Transcoding threads must be greater or equal to 0.`
+  }
+}
+
+export const INDEX_URL_VALIDATOR: BuildFormValidator = {
+  VALIDATORS: [Validators.pattern(/^https:\/\//)],
+  MESSAGES: {
+    'pattern': $localize`Index URL should be a URL`
+  }
+}
+
+export const SEARCH_INDEX_URL_VALIDATOR: BuildFormValidator = {
+  VALIDATORS: [Validators.pattern(/^https?:\/\//)],
+  MESSAGES: {
+    'pattern': $localize`Search index URL should be a URL`
+  }
+}
diff --git a/client/src/app/shared/form-validators/form-validator.model.ts b/client/src/app/shared/form-validators/form-validator.model.ts
new file mode 100644
index 000000000..248a3b1d3
--- /dev/null
+++ b/client/src/app/shared/form-validators/form-validator.model.ts
@@ -0,0 +1,14 @@
+import { ValidatorFn } from '@angular/forms'
+
+export type BuildFormValidator = {
+  VALIDATORS: ValidatorFn[],
+  MESSAGES: { [ name: string ]: string }
+}
+
+export type BuildFormArgument = {
+  [ id: string ]: BuildFormValidator | BuildFormArgument
+}
+
+export type BuildFormDefaultValues = {
+  [ name: string ]: string | string[] | BuildFormDefaultValues
+}
diff --git a/client/src/app/shared/shared-forms/form-validators/host.ts b/client/src/app/shared/form-validators/host.ts
index c18a35f9b..c18a35f9b 100644
--- a/client/src/app/shared/shared-forms/form-validators/host.ts
+++ b/client/src/app/shared/form-validators/host.ts
diff --git a/client/src/app/shared/form-validators/index.ts b/client/src/app/shared/form-validators/index.ts
new file mode 100644
index 000000000..f621f03a4
--- /dev/null
+++ b/client/src/app/shared/form-validators/index.ts
@@ -0,0 +1,17 @@
+export * from './form-validator.model'
+export * from './host'
+
+// Don't re export const variables because webpack 4 cannot do tree shaking with them
+// export * from './abuse-validators'
+// export * from './batch-domains-validators'
+// export * from './custom-config-validators'
+// export * from './instance-validators'
+// export * from './login-validators'
+// export * from './reset-password-validators'
+// export * from './user-validators'
+// export * from './video-block-validators'
+// export * from './video-captions-validators'
+// export * from './video-channel-validators'
+// export * from './video-comment-validators'
+// export * from './video-playlist-validators'
+// export * from './video-validators'
diff --git a/client/src/app/shared/form-validators/instance-validators.ts b/client/src/app/shared/form-validators/instance-validators.ts
new file mode 100644
index 000000000..a72e28ba0
--- /dev/null
+++ b/client/src/app/shared/form-validators/instance-validators.ts
@@ -0,0 +1,49 @@
+import { Validators } from '@angular/forms'
+import { BuildFormValidator } from './form-validator.model'
+
+export const FROM_EMAIL_VALIDATOR: BuildFormValidator = {
+  VALIDATORS: [Validators.required, Validators.email],
+  MESSAGES: {
+    'required': $localize`Email is required.`,
+    'email': $localize`Email must be valid.`
+  }
+}
+
+export const FROM_NAME_VALIDATOR: BuildFormValidator = {
+  VALIDATORS: [
+    Validators.required,
+    Validators.minLength(1),
+    Validators.maxLength(120)
+  ],
+  MESSAGES: {
+    'required': $localize`Your name is required.`,
+    'minlength': $localize`Your name must be at least 1 character long.`,
+    'maxlength': $localize`Your name cannot be more than 120 characters long.`
+  }
+}
+
+export const SUBJECT_VALIDATOR: BuildFormValidator = {
+  VALIDATORS: [
+    Validators.required,
+    Validators.minLength(1),
+    Validators.maxLength(120)
+  ],
+  MESSAGES: {
+    'required': $localize`A subject is required.`,
+    'minlength': $localize`The subject must be at least 1 character long.`,
+    'maxlength': $localize`The subject cannot be more than 120 characters long.`
+  }
+}
+
+export const BODY_VALIDATOR: BuildFormValidator = {
+  VALIDATORS: [
+    Validators.required,
+    Validators.minLength(3),
+    Validators.maxLength(5000)
+  ],
+  MESSAGES: {
+    'required': $localize`A message is required.`,
+    'minlength': $localize`The message must be at least 3 characters long.`,
+    'maxlength': $localize`The message cannot be more than 5000 characters long.`
+  }
+}
diff --git a/client/src/app/shared/form-validators/login-validators.ts b/client/src/app/shared/form-validators/login-validators.ts
new file mode 100644
index 000000000..1ceae1be3
--- /dev/null
+++ b/client/src/app/shared/form-validators/login-validators.ts
@@ -0,0 +1,20 @@
+import { Validators } from '@angular/forms'
+import { BuildFormValidator } from './form-validator.model'
+
+export const LOGIN_USERNAME_VALIDATOR: BuildFormValidator = {
+  VALIDATORS: [
+    Validators.required
+  ],
+  MESSAGES: {
+    'required': $localize`Username is required.`
+  }
+}
+
+export const LOGIN_PASSWORD_VALIDATOR: BuildFormValidator = {
+  VALIDATORS: [
+    Validators.required
+  ],
+  MESSAGES: {
+    'required': $localize`Password is required.`
+  }
+}
diff --git a/client/src/app/shared/form-validators/reset-password-validators.ts b/client/src/app/shared/form-validators/reset-password-validators.ts
new file mode 100644
index 000000000..b87f2eab9
--- /dev/null
+++ b/client/src/app/shared/form-validators/reset-password-validators.ts
@@ -0,0 +1,11 @@
+import { Validators } from '@angular/forms'
+import { BuildFormValidator } from './form-validator.model'
+
+export const RESET_PASSWORD_CONFIRM_VALIDATOR: BuildFormValidator = {
+  VALIDATORS: [
+    Validators.required
+  ],
+  MESSAGES: {
+    'required': $localize`Confirmation of the password is required.`
+  }
+}
diff --git a/client/src/app/shared/form-validators/user-validators.ts b/client/src/app/shared/form-validators/user-validators.ts
new file mode 100644
index 000000000..18199505c
--- /dev/null
+++ b/client/src/app/shared/form-validators/user-validators.ts
@@ -0,0 +1,144 @@
+import { Validators } from '@angular/forms'
+import { BuildFormValidator } from './form-validator.model'
+
+export const USER_USERNAME_VALIDATOR: BuildFormValidator = {
+  VALIDATORS: [
+    Validators.required,
+    Validators.minLength(1),
+    Validators.maxLength(50),
+    Validators.pattern(/^[a-z0-9][a-z0-9._]*$/)
+  ],
+  MESSAGES: {
+    'required': $localize`Username is required.`,
+    'minlength': $localize`Username must be at least 1 character long.`,
+    'maxlength': $localize`Username cannot be more than 50 characters long.`,
+    'pattern': $localize`Username should be lowercase alphanumeric; dots and underscores are allowed.`
+  }
+}
+
+export const USER_CHANNEL_NAME_VALIDATOR: BuildFormValidator = {
+  VALIDATORS: [
+    Validators.required,
+    Validators.minLength(1),
+    Validators.maxLength(50),
+    Validators.pattern(/^[a-z0-9][a-z0-9._]*$/)
+  ],
+  MESSAGES: {
+    'required': $localize`Channel name is required.`,
+    'minlength': $localize`Channel name must be at least 1 character long.`,
+    'maxlength': $localize`Channel name cannot be more than 50 characters long.`,
+    'pattern': $localize`Channel name should be lowercase alphanumeric; dots and underscores are allowed.`
+  }
+}
+
+export const USER_EMAIL_VALIDATOR: BuildFormValidator = {
+  VALIDATORS: [ Validators.required, Validators.email ],
+  MESSAGES: {
+    'required': $localize`Email is required.`,
+    'email': $localize`Email must be valid.`
+  }
+}
+
+export const USER_PASSWORD_VALIDATOR: BuildFormValidator = {
+  VALIDATORS: [
+    Validators.required,
+    Validators.minLength(6),
+    Validators.maxLength(255)
+  ],
+  MESSAGES: {
+    'required': $localize`Password is required.`,
+    'minlength': $localize`Password must be at least 6 characters long.`,
+    'maxlength': $localize`Password cannot be more than 255 characters long.`
+  }
+}
+
+export const USER_PASSWORD_OPTIONAL_VALIDATOR: BuildFormValidator = {
+  VALIDATORS: [
+    Validators.minLength(6),
+    Validators.maxLength(255)
+  ],
+  MESSAGES: {
+    'minlength': $localize`Password must be at least 6 characters long.`,
+    'maxlength': $localize`Password cannot be more than 255 characters long.`
+  }
+}
+
+export const USER_CONFIRM_PASSWORD_VALIDATOR: BuildFormValidator = {
+  VALIDATORS: [],
+  MESSAGES: {
+    'matchPassword': $localize`The new password and the confirmed password do not correspond.`
+  }
+}
+
+export const USER_VIDEO_QUOTA_VALIDATOR: BuildFormValidator = {
+  VALIDATORS: [ Validators.required, Validators.min(-1) ],
+  MESSAGES: {
+    'required': $localize`Video quota is required.`,
+    'min': $localize`Quota must be greater than -1.`
+  }
+}
+export const USER_VIDEO_QUOTA_DAILY_VALIDATOR: BuildFormValidator = {
+  VALIDATORS: [ Validators.required, Validators.min(-1) ],
+  MESSAGES: {
+    'required': $localize`Daily upload limit is required.`,
+    'min': $localize`Daily upload limit must be greater than -1.`
+  }
+}
+
+export const USER_ROLE_VALIDATOR: BuildFormValidator = {
+  VALIDATORS: [ Validators.required ],
+  MESSAGES: {
+    'required': $localize`User role is required.`
+  }
+}
+
+export const USER_DISPLAY_NAME_REQUIRED_VALIDATOR = buildDisplayNameValidator(true)
+
+export const USER_DESCRIPTION_VALIDATOR: BuildFormValidator = {
+  VALIDATORS: [
+    Validators.minLength(3),
+    Validators.maxLength(1000)
+  ],
+  MESSAGES: {
+    'minlength': $localize`Description must be at least 3 characters long.`,
+    'maxlength': $localize`Description cannot be more than 1000 characters long.`
+  }
+}
+
+export const USER_TERMS_VALIDATOR: BuildFormValidator = {
+  VALIDATORS: [
+    Validators.requiredTrue
+  ],
+  MESSAGES: {
+    'required': $localize`You must agree with the instance terms in order to register on it.`
+  }
+}
+
+export const USER_BAN_REASON_VALIDATOR: BuildFormValidator = {
+  VALIDATORS: [
+    Validators.minLength(3),
+    Validators.maxLength(250)
+  ],
+  MESSAGES: {
+    'minlength': $localize`Ban reason must be at least 3 characters long.`,
+    'maxlength': $localize`Ban reason cannot be more than 250 characters long.`
+  }
+}
+
+function buildDisplayNameValidator (required: boolean) {
+  const control = {
+    VALIDATORS: [
+      Validators.minLength(1),
+      Validators.maxLength(120)
+    ],
+    MESSAGES: {
+      'required': $localize`Display name is required.`,
+      'minlength': $localize`Display name must be at least 1 character long.`,
+      'maxlength': $localize`Display name cannot be more than 50 characters long.`
+    }
+  }
+
+  if (required) control.VALIDATORS.push(Validators.required)
+
+  return control
+}
diff --git a/client/src/app/shared/form-validators/video-block-validators.ts b/client/src/app/shared/form-validators/video-block-validators.ts
new file mode 100644
index 000000000..d3974aefe
--- /dev/null
+++ b/client/src/app/shared/form-validators/video-block-validators.ts
@@ -0,0 +1,10 @@
+import { Validators } from '@angular/forms'
+import { BuildFormValidator } from './form-validator.model'
+
+export const VIDEO_BLOCK_REASON_VALIDATOR: BuildFormValidator = {
+  VALIDATORS: [ Validators.minLength(2), Validators.maxLength(300) ],
+  MESSAGES: {
+    'minlength': $localize`Block reason must be at least 2 characters long.`,
+    'maxlength': $localize`Block reason cannot be more than 300 characters long.`
+  }
+}
diff --git a/client/src/app/shared/form-validators/video-captions-validators.ts b/client/src/app/shared/form-validators/video-captions-validators.ts
new file mode 100644
index 000000000..9742d2925
--- /dev/null
+++ b/client/src/app/shared/form-validators/video-captions-validators.ts
@@ -0,0 +1,16 @@
+import { Validators } from '@angular/forms'
+import { BuildFormValidator } from './form-validator.model'
+
+export const VIDEO_CAPTION_LANGUAGE_VALIDATOR: BuildFormValidator = {
+  VALIDATORS: [ Validators.required ],
+  MESSAGES: {
+    'required': $localize`Video caption language is required.`
+  }
+}
+
+export const VIDEO_CAPTION_FILE_VALIDATOR: BuildFormValidator = {
+  VALIDATORS: [ Validators.required ],
+  MESSAGES: {
+    'required': $localize`Video caption file is required.`
+  }
+}
diff --git a/client/src/app/shared/form-validators/video-channel-validators.ts b/client/src/app/shared/form-validators/video-channel-validators.ts
new file mode 100644
index 000000000..0daab22ce
--- /dev/null
+++ b/client/src/app/shared/form-validators/video-channel-validators.ts
@@ -0,0 +1,52 @@
+import { Validators } from '@angular/forms'
+import { BuildFormValidator } from './form-validator.model'
+
+export const VIDEO_CHANNEL_NAME_VALIDATOR: BuildFormValidator = {
+  VALIDATORS: [
+    Validators.required,
+    Validators.minLength(1),
+    Validators.maxLength(50),
+    Validators.pattern(/^[a-z0-9][a-z0-9._]*$/)
+  ],
+  MESSAGES: {
+    'required': $localize`Name is required.`,
+    'minlength': $localize`Name must be at least 1 character long.`,
+    'maxlength': $localize`Name cannot be more than 50 characters long.`,
+    'pattern': $localize`Name should be lowercase alphanumeric; dots and underscores are allowed.`
+  }
+}
+
+export const VIDEO_CHANNEL_DISPLAY_NAME_VALIDATOR: BuildFormValidator = {
+  VALIDATORS: [
+    Validators.required,
+    Validators.minLength(1),
+    Validators.maxLength(50)
+  ],
+  MESSAGES: {
+    'required': $localize`Display name is required.`,
+    'minlength': $localize`Display name must be at least 1 character long.`,
+    'maxlength': $localize`Display name cannot be more than 50 characters long.`
+  }
+}
+
+export const VIDEO_CHANNEL_DESCRIPTION_VALIDATOR: BuildFormValidator = {
+  VALIDATORS: [
+    Validators.minLength(3),
+    Validators.maxLength(1000)
+  ],
+  MESSAGES: {
+    'minlength': $localize`Description must be at least 3 characters long.`,
+    'maxlength': $localize`Description cannot be more than 1000 characters long.`
+  }
+}
+
+export const VIDEO_CHANNEL_SUPPORT_VALIDATOR: BuildFormValidator = {
+  VALIDATORS: [
+    Validators.minLength(3),
+    Validators.maxLength(1000)
+  ],
+  MESSAGES: {
+    'minlength': $localize`Support text must be at least 3 characters long.`,
+    'maxlength': $localize`Support text cannot be more than 1000 characters long`
+  }
+}
diff --git a/client/src/app/shared/form-validators/video-comment-validators.ts b/client/src/app/shared/form-validators/video-comment-validators.ts
new file mode 100644
index 000000000..c56564d34
--- /dev/null
+++ b/client/src/app/shared/form-validators/video-comment-validators.ts
@@ -0,0 +1,11 @@
+import { Validators } from '@angular/forms'
+import { BuildFormValidator } from './form-validator.model'
+
+export const VIDEO_COMMENT_TEXT_VALIDATOR: BuildFormValidator = {
+  VALIDATORS: [ Validators.required, Validators.minLength(1), Validators.maxLength(3000) ],
+  MESSAGES: {
+    'required': $localize`Comment is required.`,
+    'minlength': $localize`Comment must be at least 2 characters long.`,
+    'maxlength': $localize`Comment cannot be more than 3000 characters long.`
+  }
+}
diff --git a/client/src/app/shared/form-validators/video-ownership-change-validators.ts b/client/src/app/shared/form-validators/video-ownership-change-validators.ts
new file mode 100644
index 000000000..e1a2df8a6
--- /dev/null
+++ b/client/src/app/shared/form-validators/video-ownership-change-validators.ts
@@ -0,0 +1,25 @@
+import { AbstractControl, ValidationErrors, Validators } from '@angular/forms'
+import { BuildFormValidator } from './form-validator.model'
+
+export const OWNERSHIP_CHANGE_CHANNEL_VALIDATOR: BuildFormValidator = {
+  VALIDATORS: [ Validators.required ],
+  MESSAGES: {
+    'required': $localize`The channel is required.`
+  }
+}
+
+export const OWNERSHIP_CHANGE_USERNAME_VALIDATOR: BuildFormValidator = {
+  VALIDATORS: [ Validators.required, localAccountValidator ],
+  MESSAGES: {
+    'required': $localize`The username is required.`,
+    'localAccountOnly': $localize`You can only transfer ownership to a local account`
+  }
+}
+
+function localAccountValidator (control: AbstractControl): ValidationErrors {
+  if (control.value.includes('@')) {
+    return { 'localAccountOnly': true }
+  }
+
+  return null
+}
diff --git a/client/src/app/shared/form-validators/video-playlist-validators.ts b/client/src/app/shared/form-validators/video-playlist-validators.ts
new file mode 100644
index 000000000..7e3d29458
--- /dev/null
+++ b/client/src/app/shared/form-validators/video-playlist-validators.ts
@@ -0,0 +1,54 @@
+import { Validators, AbstractControl } from '@angular/forms'
+import { BuildFormValidator } from './form-validator.model'
+import { VideoPlaylistPrivacy } from '@shared/models'
+
+export const VIDEO_PLAYLIST_DISPLAY_NAME_VALIDATOR: BuildFormValidator = {
+  VALIDATORS: [
+    Validators.required,
+    Validators.minLength(1),
+    Validators.maxLength(120)
+  ],
+  MESSAGES: {
+    'required': $localize`Display name is required.`,
+    'minlength': $localize`Display name must be at least 1 character long.`,
+    'maxlength': $localize`Display name cannot be more than 120 characters long.`
+  }
+}
+
+export const VIDEO_PLAYLIST_PRIVACY_VALIDATOR: BuildFormValidator = {
+  VALIDATORS: [
+    Validators.required
+  ],
+  MESSAGES: {
+    'required': $localize`Privacy is required.`
+  }
+}
+
+export const VIDEO_PLAYLIST_DESCRIPTION_VALIDATOR: BuildFormValidator = {
+  VALIDATORS: [
+    Validators.minLength(3),
+    Validators.maxLength(1000)
+  ],
+  MESSAGES: {
+    'minlength': $localize`Description must be at least 3 characters long.`,
+    'maxlength': $localize`Description cannot be more than 1000 characters long.`
+  }
+}
+
+export const VIDEO_PLAYLIST_CHANNEL_ID_VALIDATOR: BuildFormValidator = {
+  VALIDATORS: [],
+  MESSAGES: {
+    'required': $localize`The channel is required when the playlist is public.`
+  }
+}
+
+export function setPlaylistChannelValidator (channelControl: AbstractControl, privacy: VideoPlaylistPrivacy) {
+  if (privacy.toString() === VideoPlaylistPrivacy.PUBLIC.toString()) {
+    channelControl.setValidators([Validators.required])
+  } else {
+    channelControl.setValidators(null)
+  }
+
+  channelControl.markAsDirty()
+  channelControl.updateValueAndValidity()
+}
diff --git a/client/src/app/shared/form-validators/video-validators.ts b/client/src/app/shared/form-validators/video-validators.ts
new file mode 100644
index 000000000..23f2391b2
--- /dev/null
+++ b/client/src/app/shared/form-validators/video-validators.ts
@@ -0,0 +1,101 @@
+import { AbstractControl, ValidationErrors, ValidatorFn, Validators } from '@angular/forms'
+import { BuildFormValidator } from './form-validator.model'
+
+export const VIDEO_NAME_VALIDATOR: BuildFormValidator = {
+  VALIDATORS: [ Validators.required, Validators.minLength(3), Validators.maxLength(120) ],
+  MESSAGES: {
+    'required': $localize`Video name is required.`,
+    'minlength': $localize`Video name must be at least 3 characters long.`,
+    'maxlength': $localize`Video name cannot be more than 120 characters long.`
+  }
+}
+
+export const VIDEO_PRIVACY_VALIDATOR: BuildFormValidator = {
+  VALIDATORS: [ Validators.required ],
+  MESSAGES: {
+    'required': $localize`Video privacy is required.`
+  }
+}
+
+export const VIDEO_CATEGORY_VALIDATOR: BuildFormValidator = {
+  VALIDATORS: [ ],
+  MESSAGES: {}
+}
+
+export const VIDEO_LICENCE_VALIDATOR: BuildFormValidator = {
+  VALIDATORS: [ ],
+  MESSAGES: {}
+}
+
+export const VIDEO_LANGUAGE_VALIDATOR: BuildFormValidator = {
+  VALIDATORS: [ ],
+  MESSAGES: {}
+}
+
+export const VIDEO_IMAGE_VALIDATOR: BuildFormValidator = {
+  VALIDATORS: [ ],
+  MESSAGES: {}
+}
+
+export const VIDEO_CHANNEL_VALIDATOR: BuildFormValidator = {
+  VALIDATORS: [ Validators.required ],
+  MESSAGES: {
+    'required': $localize`Video channel is required.`
+  }
+}
+
+export const VIDEO_DESCRIPTION_VALIDATOR: BuildFormValidator = {
+  VALIDATORS: [ Validators.minLength(3), Validators.maxLength(10000) ],
+  MESSAGES: {
+    'minlength': $localize`Video description must be at least 3 characters long.`,
+    'maxlength': $localize`Video description cannot be more than 10000 characters long.`
+  }
+}
+
+export const VIDEO_TAG_VALIDATOR: BuildFormValidator = {
+  VALIDATORS: [ Validators.minLength(2), Validators.maxLength(30) ],
+  MESSAGES: {
+    'minlength': $localize`A tag should be more than 2 characters long.`,
+    'maxlength': $localize`A tag should be less than 30 characters long.`
+  }
+}
+
+export const VIDEO_TAGS_ARRAY_VALIDATOR: BuildFormValidator = {
+  VALIDATORS: [ Validators.maxLength(5), arrayTagLengthValidator() ],
+  MESSAGES: {
+    'maxlength': $localize`A maximum of 5 tags can be used on a video.`,
+    'arrayTagLength': $localize`A tag should be more than 2, and less than 30 characters long.`
+  }
+}
+
+export const VIDEO_SUPPORT_VALIDATOR: BuildFormValidator = {
+  VALIDATORS: [ Validators.minLength(3), Validators.maxLength(1000) ],
+  MESSAGES: {
+    'minlength': $localize`Video support must be at least 3 characters long.`,
+    'maxlength': $localize`Video support cannot be more than 1000 characters long.`
+  }
+}
+
+export const VIDEO_SCHEDULE_PUBLICATION_AT_VALIDATOR: BuildFormValidator = {
+  VALIDATORS: [ ],
+  MESSAGES: {
+    'required': $localize`A date is required to schedule video update.`
+  }
+}
+
+export const VIDEO_ORIGINALLY_PUBLISHED_AT_VALIDATOR: BuildFormValidator = {
+  VALIDATORS: [ ],
+  MESSAGES: {}
+}
+
+function arrayTagLengthValidator (min = 2, max = 30): ValidatorFn {
+  return (control: AbstractControl): ValidationErrors => {
+    const array = control.value as Array<string>
+
+    if (array.every(e => e.length > min && e.length < max)) {
+      return null
+    }
+
+    return { 'arrayTagLength': true }
+  }
+}
diff --git a/client/src/app/shared/shared-abuse-list/abuse-message-modal.component.ts b/client/src/app/shared/shared-abuse-list/abuse-message-modal.component.ts
index 0c3c8ff48..9abb4c094 100644
--- a/client/src/app/shared/shared-abuse-list/abuse-message-modal.component.ts
+++ b/client/src/app/shared/shared-abuse-list/abuse-message-modal.component.ts
@@ -1,9 +1,10 @@
 import { Component, EventEmitter, Input, OnInit, Output, ViewChild } from '@angular/core'
 import { AuthService, HtmlRendererService, Notifier } from '@app/core'
-import { AbuseValidatorsService, FormReactive, FormValidatorService } from '@app/shared/shared-forms'
+import { FormReactive, FormValidatorService } from '@app/shared/shared-forms'
 import { NgbModal } from '@ng-bootstrap/ng-bootstrap'
 import { NgbModalRef } from '@ng-bootstrap/ng-bootstrap/modal/modal-ref'
 import { AbuseMessage, UserAbuse } from '@shared/models'
+import { ABUSE_MESSAGE_VALIDATOR } from '../form-validators/abuse-validators'
 import { AbuseService } from '../shared-moderation'
 
 @Component({
@@ -28,7 +29,6 @@ export class AbuseMessageModalComponent extends FormReactive implements OnInit {
 
   constructor (
     protected formValidatorService: FormValidatorService,
-    private abuseValidatorsService: AbuseValidatorsService,
     private modalService: NgbModal,
     private htmlRenderer: HtmlRendererService,
     private auth: AuthService,
@@ -40,7 +40,7 @@ export class AbuseMessageModalComponent extends FormReactive implements OnInit {
 
   ngOnInit () {
     this.buildForm({
-      message: this.abuseValidatorsService.ABUSE_MESSAGE
+      message: ABUSE_MESSAGE_VALIDATOR
     })
   }
 
diff --git a/client/src/app/shared/shared-abuse-list/moderation-comment-modal.component.ts b/client/src/app/shared/shared-abuse-list/moderation-comment-modal.component.ts
index fad7f888d..876aeea8a 100644
--- a/client/src/app/shared/shared-abuse-list/moderation-comment-modal.component.ts
+++ b/client/src/app/shared/shared-abuse-list/moderation-comment-modal.component.ts
@@ -1,10 +1,11 @@
 import { Component, EventEmitter, OnInit, Output, ViewChild } from '@angular/core'
 import { Notifier } from '@app/core'
-import { AbuseValidatorsService, FormReactive, FormValidatorService } from '@app/shared/shared-forms'
+import { FormReactive, FormValidatorService } from '@app/shared/shared-forms'
 import { AbuseService } from '@app/shared/shared-moderation'
 import { NgbModal } from '@ng-bootstrap/ng-bootstrap'
 import { NgbModalRef } from '@ng-bootstrap/ng-bootstrap/modal/modal-ref'
 import { AdminAbuse } from '@shared/models'
+import { ABUSE_MODERATION_COMMENT_VALIDATOR } from '../form-validators/abuse-validators'
 
 @Component({
   selector: 'my-moderation-comment-modal',
@@ -22,15 +23,14 @@ export class ModerationCommentModalComponent extends FormReactive implements OnI
     protected formValidatorService: FormValidatorService,
     private modalService: NgbModal,
     private notifier: Notifier,
-    private abuseService: AbuseService,
-    private abuseValidatorsService: AbuseValidatorsService
+    private abuseService: AbuseService
   ) {
     super()
   }
 
   ngOnInit () {
     this.buildForm({
-      moderationComment: this.abuseValidatorsService.ABUSE_MODERATION_COMMENT
+      moderationComment: ABUSE_MODERATION_COMMENT_VALIDATOR
     })
   }
 
diff --git a/client/src/app/shared/shared-forms/form-reactive.ts b/client/src/app/shared/shared-forms/form-reactive.ts
index caa31d831..adf6cb894 100644
--- a/client/src/app/shared/shared-forms/form-reactive.ts
+++ b/client/src/app/shared/shared-forms/form-reactive.ts
@@ -1,5 +1,6 @@
 import { FormGroup } from '@angular/forms'
-import { BuildFormArgument, BuildFormDefaultValues, FormValidatorService } from './form-validators'
+import { BuildFormArgument, BuildFormDefaultValues } from '../form-validators/form-validator.model'
+import { FormValidatorService } from './form-validator.service'
 
 export type FormReactiveErrors = { [ id: string ]: string | FormReactiveErrors }
 export type FormReactiveValidationMessages = {
diff --git a/client/src/app/shared/shared-forms/form-validators/form-validator.service.ts b/client/src/app/shared/shared-forms/form-validator.service.ts
index dec7d8d9a..41c8b76bd 100644
--- a/client/src/app/shared/shared-forms/form-validators/form-validator.service.ts
+++ b/client/src/app/shared/shared-forms/form-validator.service.ts
@@ -1,17 +1,7 @@
-import { FormBuilder, FormControl, FormGroup, ValidatorFn } from '@angular/forms'
 import { Injectable } from '@angular/core'
-import { FormReactiveErrors, FormReactiveValidationMessages } from '../form-reactive'
-
-export type BuildFormValidator = {
-  VALIDATORS: ValidatorFn[],
-  MESSAGES: { [ name: string ]: string }
-}
-export type BuildFormArgument = {
-  [ id: string ]: BuildFormValidator | BuildFormArgument
-}
-export type BuildFormDefaultValues = {
-  [ name: string ]: string | string[] | BuildFormDefaultValues
-}
+import { FormBuilder, FormControl, FormGroup, ValidatorFn } from '@angular/forms'
+import { BuildFormArgument, BuildFormDefaultValues } from '../form-validators/form-validator.model'
+import { FormReactiveErrors, FormReactiveValidationMessages } from './form-reactive'
 
 @Injectable()
 export class FormValidatorService {
diff --git a/client/src/app/shared/shared-forms/form-validators/abuse-validators.service.ts b/client/src/app/shared/shared-forms/form-validators/abuse-validators.service.ts
deleted file mode 100644
index 56d30d6f9..000000000
--- a/client/src/app/shared/shared-forms/form-validators/abuse-validators.service.ts
+++ /dev/null
@@ -1,39 +0,0 @@
-import { Injectable } from '@angular/core'
-import { Validators } from '@angular/forms'
-import { BuildFormValidator } from './form-validator.service'
-
-@Injectable()
-export class AbuseValidatorsService {
-  readonly ABUSE_REASON: BuildFormValidator
-  readonly ABUSE_MODERATION_COMMENT: BuildFormValidator
-  readonly ABUSE_MESSAGE: BuildFormValidator
-
-  constructor () {
-    this.ABUSE_REASON = {
-      VALIDATORS: [ Validators.required, Validators.minLength(2), Validators.maxLength(3000) ],
-      MESSAGES: {
-        'required': $localize`Report reason is required.`,
-        'minlength': $localize`Report reason must be at least 2 characters long.`,
-        'maxlength': $localize`Report reason cannot be more than 3000 characters long.`
-      }
-    }
-
-    this.ABUSE_MODERATION_COMMENT = {
-      VALIDATORS: [ Validators.required, Validators.minLength(2), Validators.maxLength(3000) ],
-      MESSAGES: {
-        'required': $localize`Moderation comment is required.`,
-        'minlength': $localize`Moderation comment must be at least 2 characters long.`,
-        'maxlength': $localize`Moderation comment cannot be more than 3000 characters long.`
-      }
-    }
-
-    this.ABUSE_MESSAGE = {
-      VALIDATORS: [ Validators.required, Validators.minLength(2), Validators.maxLength(3000) ],
-      MESSAGES: {
-        'required': $localize`Abuse message is required.`,
-        'minlength': $localize`Abuse message must be at least 2 characters long.`,
-        'maxlength': $localize`Abuse message cannot be more than 3000 characters long.`
-      }
-    }
-  }
-}
diff --git a/client/src/app/shared/shared-forms/form-validators/batch-domains-validators.service.ts b/client/src/app/shared/shared-forms/form-validators/batch-domains-validators.service.ts
deleted file mode 100644
index 6c7da833f..000000000
--- a/client/src/app/shared/shared-forms/form-validators/batch-domains-validators.service.ts
+++ /dev/null
@@ -1,68 +0,0 @@
-import { Injectable } from '@angular/core'
-import { ValidatorFn, Validators } from '@angular/forms'
-import { BuildFormValidator } from './form-validator.service'
-import { validateHost } from './host'
-
-@Injectable()
-export class BatchDomainsValidatorsService {
-  readonly DOMAINS: BuildFormValidator
-
-  constructor () {
-    this.DOMAINS = {
-      VALIDATORS: [ Validators.required, this.validDomains, this.isHostsUnique ],
-      MESSAGES: {
-        'required': $localize`Domain is required.`,
-        'validDomains': $localize`Domains entered are invalid.`,
-        'uniqueDomains': $localize`Domains entered contain duplicates.`
-      }
-    }
-  }
-
-  getNotEmptyHosts (hosts: string) {
-    return hosts
-      .split('\n')
-      .filter((host: string) => host && host.length !== 0) // Eject empty hosts
-  }
-
-  private validDomains: ValidatorFn = (control) => {
-    if (!control.value) return null
-
-    const newHostsErrors = []
-    const hosts = this.getNotEmptyHosts(control.value)
-
-    for (const host of hosts) {
-      if (validateHost(host) === false) {
-        newHostsErrors.push($localize`${host} is not valid`)
-      }
-    }
-
-    /* Is not valid. */
-    if (newHostsErrors.length !== 0) {
-      return {
-        'validDomains': {
-          reason: 'invalid',
-          value: newHostsErrors.join('. ') + '.'
-        }
-      }
-    }
-
-    /* Is valid. */
-    return null
-  }
-
-  private isHostsUnique: ValidatorFn = (control) => {
-    if (!control.value) return null
-
-    const hosts = this.getNotEmptyHosts(control.value)
-
-    if (hosts.every((host: string) => hosts.indexOf(host) === hosts.lastIndexOf(host))) {
-      return null
-    } else {
-      return {
-        'uniqueDomains': {
-          reason: 'invalid'
-        }
-      }
-    }
-  }
-}
diff --git a/client/src/app/shared/shared-forms/form-validators/custom-config-validators.service.ts b/client/src/app/shared/shared-forms/form-validators/custom-config-validators.service.ts
deleted file mode 100644
index 862ff5470..000000000
--- a/client/src/app/shared/shared-forms/form-validators/custom-config-validators.service.ts
+++ /dev/null
@@ -1,97 +0,0 @@
-import { Injectable } from '@angular/core'
-import { Validators } from '@angular/forms'
-import { BuildFormValidator } from './form-validator.service'
-
-@Injectable()
-export class CustomConfigValidatorsService {
-  readonly INSTANCE_NAME: BuildFormValidator
-  readonly INSTANCE_SHORT_DESCRIPTION: BuildFormValidator
-  readonly SERVICES_TWITTER_USERNAME: BuildFormValidator
-  readonly CACHE_PREVIEWS_SIZE: BuildFormValidator
-  readonly CACHE_CAPTIONS_SIZE: BuildFormValidator
-  readonly SIGNUP_LIMIT: BuildFormValidator
-  readonly ADMIN_EMAIL: BuildFormValidator
-  readonly TRANSCODING_THREADS: BuildFormValidator
-  readonly INDEX_URL: BuildFormValidator
-  readonly SEARCH_INDEX_URL: BuildFormValidator
-
-  constructor () {
-    this.INSTANCE_NAME = {
-      VALIDATORS: [ Validators.required ],
-      MESSAGES: {
-        'required': $localize`Instance name is required.`
-      }
-    }
-
-    this.INSTANCE_SHORT_DESCRIPTION = {
-      VALIDATORS: [ Validators.max(250) ],
-      MESSAGES: {
-        'max': $localize`Short description should not be longer than 250 characters.`
-      }
-    }
-
-    this.SERVICES_TWITTER_USERNAME = {
-      VALIDATORS: [ Validators.required ],
-      MESSAGES: {
-        'required': $localize`Twitter username is required.`
-      }
-    }
-
-    this.CACHE_PREVIEWS_SIZE = {
-      VALIDATORS: [ Validators.required, Validators.min(1), Validators.pattern('[0-9]+') ],
-      MESSAGES: {
-        'required': $localize`Previews cache size is required.`,
-        'min': $localize`Previews cache size must be greater than 1.`,
-        'pattern': $localize`Previews cache size must be a number.`
-      }
-    }
-
-    this.CACHE_CAPTIONS_SIZE = {
-      VALIDATORS: [ Validators.required, Validators.min(1), Validators.pattern('[0-9]+') ],
-      MESSAGES: {
-        'required': $localize`Captions cache size is required.`,
-        'min': $localize`Captions cache size must be greater than 1.`,
-        'pattern': $localize`Captions cache size must be a number.`
-      }
-    }
-
-    this.SIGNUP_LIMIT = {
-      VALIDATORS: [ Validators.required, Validators.min(-1), Validators.pattern('-?[0-9]+') ],
-      MESSAGES: {
-        'required': $localize`Signup limit is required.`,
-        'min': $localize`Signup limit must be greater than 1.`,
-        'pattern': $localize`Signup limit must be a number.`
-      }
-    }
-
-    this.ADMIN_EMAIL = {
-      VALIDATORS: [ Validators.required, Validators.email ],
-      MESSAGES: {
-        'required': $localize`Admin email is required.`,
-        'email': $localize`Admin email must be valid.`
-      }
-    }
-
-    this.TRANSCODING_THREADS = {
-      VALIDATORS: [ Validators.required, Validators.min(0) ],
-      MESSAGES: {
-        'required': $localize`Transcoding threads is required.`,
-        'min': $localize`Transcoding threads must be greater or equal to 0.`
-      }
-    }
-
-    this.INDEX_URL = {
-      VALIDATORS: [ Validators.pattern(/^https:\/\//) ],
-      MESSAGES: {
-        'pattern': $localize`Index URL should be a URL`
-      }
-    }
-
-    this.SEARCH_INDEX_URL = {
-      VALIDATORS: [ Validators.pattern(/^https?:\/\//) ],
-      MESSAGES: {
-        'pattern': $localize`Search index URL should be a URL`
-      }
-    }
-  }
-}
diff --git a/client/src/app/shared/shared-forms/form-validators/index.ts b/client/src/app/shared/shared-forms/form-validators/index.ts
deleted file mode 100644
index b06a326ff..000000000
--- a/client/src/app/shared/shared-forms/form-validators/index.ts
+++ /dev/null
@@ -1,17 +0,0 @@
-export * from './abuse-validators.service'
-export * from './batch-domains-validators.service'
-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'
-export * from './video-accept-ownership-validators.service'
-export * from './video-block-validators.service'
-export * from './video-captions-validators.service'
-export * from './video-change-ownership-validators.service'
-export * from './video-channel-validators.service'
-export * from './video-comment-validators.service'
-export * from './video-playlist-validators.service'
-export * from './video-validators.service'
diff --git a/client/src/app/shared/shared-forms/form-validators/instance-validators.service.ts b/client/src/app/shared/shared-forms/form-validators/instance-validators.service.ts
deleted file mode 100644
index 3628f0b60..000000000
--- a/client/src/app/shared/shared-forms/form-validators/instance-validators.service.ts
+++ /dev/null
@@ -1,61 +0,0 @@
-import { Injectable } from '@angular/core'
-import { Validators } from '@angular/forms'
-import { BuildFormValidator } from './form-validator.service'
-
-@Injectable()
-export class InstanceValidatorsService {
-  readonly FROM_EMAIL: BuildFormValidator
-  readonly FROM_NAME: BuildFormValidator
-  readonly SUBJECT: BuildFormValidator
-  readonly BODY: BuildFormValidator
-
-  constructor () {
-
-    this.FROM_EMAIL = {
-      VALIDATORS: [ Validators.required, Validators.email ],
-      MESSAGES: {
-        'required': $localize`Email is required.`,
-        'email': $localize`Email must be valid.`
-      }
-    }
-
-    this.FROM_NAME = {
-      VALIDATORS: [
-        Validators.required,
-        Validators.minLength(1),
-        Validators.maxLength(120)
-      ],
-      MESSAGES: {
-        'required': $localize`Your name is required.`,
-        'minlength': $localize`Your name must be at least 1 character long.`,
-        'maxlength': $localize`Your name cannot be more than 120 characters long.`
-      }
-    }
-
-    this.SUBJECT = {
-      VALIDATORS: [
-        Validators.required,
-        Validators.minLength(1),
-        Validators.maxLength(120)
-      ],
-      MESSAGES: {
-        'required': $localize`A subject is required.`,
-        'minlength': $localize`The subject must be at least 1 character long.`,
-        'maxlength': $localize`The subject cannot be more than 120 characters long.`
-      }
-    }
-
-    this.BODY = {
-      VALIDATORS: [
-        Validators.required,
-        Validators.minLength(3),
-        Validators.maxLength(5000)
-      ],
-      MESSAGES: {
-        'required': $localize`A message is required.`,
-        'minlength': $localize`The message must be at least 3 characters long.`,
-        'maxlength': $localize`The message cannot be more than 5000 characters long.`
-      }
-    }
-  }
-}
diff --git a/client/src/app/shared/shared-forms/form-validators/login-validators.service.ts b/client/src/app/shared/shared-forms/form-validators/login-validators.service.ts
deleted file mode 100644
index 67ea11f20..000000000
--- a/client/src/app/shared/shared-forms/form-validators/login-validators.service.ts
+++ /dev/null
@@ -1,29 +0,0 @@
-import { Injectable } from '@angular/core'
-import { Validators } from '@angular/forms'
-import { BuildFormValidator } from './form-validator.service'
-
-@Injectable()
-export class LoginValidatorsService {
-  readonly LOGIN_USERNAME: BuildFormValidator
-  readonly LOGIN_PASSWORD: BuildFormValidator
-
-  constructor () {
-    this.LOGIN_USERNAME = {
-      VALIDATORS: [
-        Validators.required
-      ],
-      MESSAGES: {
-        'required': $localize`Username is required.`
-      }
-    }
-
-    this.LOGIN_PASSWORD = {
-      VALIDATORS: [
-        Validators.required
-      ],
-      MESSAGES: {
-        'required': $localize`Password is required.`
-      }
-    }
-  }
-}
diff --git a/client/src/app/shared/shared-forms/form-validators/reset-password-validators.service.ts b/client/src/app/shared/shared-forms/form-validators/reset-password-validators.service.ts
deleted file mode 100644
index 3d0b4dd64..000000000
--- a/client/src/app/shared/shared-forms/form-validators/reset-password-validators.service.ts
+++ /dev/null
@@ -1,19 +0,0 @@
-import { Injectable } from '@angular/core'
-import { Validators } from '@angular/forms'
-import { BuildFormValidator } from './form-validator.service'
-
-@Injectable()
-export class ResetPasswordValidatorsService {
-  readonly RESET_PASSWORD_CONFIRM: BuildFormValidator
-
-  constructor () {
-    this.RESET_PASSWORD_CONFIRM = {
-      VALIDATORS: [
-        Validators.required
-      ],
-      MESSAGES: {
-        'required': $localize`Confirmation of the password is required.`
-      }
-    }
-  }
-}
diff --git a/client/src/app/shared/shared-forms/form-validators/user-validators.service.ts b/client/src/app/shared/shared-forms/form-validators/user-validators.service.ts
deleted file mode 100644
index 312fc9b1e..000000000
--- a/client/src/app/shared/shared-forms/form-validators/user-validators.service.ts
+++ /dev/null
@@ -1,166 +0,0 @@
-import { Injectable } from '@angular/core'
-import { Validators } from '@angular/forms'
-import { BuildFormValidator } from './form-validator.service'
-
-@Injectable()
-export class UserValidatorsService {
-  readonly USER_USERNAME: BuildFormValidator
-  readonly USER_CHANNEL_NAME: BuildFormValidator
-  readonly USER_EMAIL: BuildFormValidator
-  readonly USER_PASSWORD: BuildFormValidator
-  readonly USER_PASSWORD_OPTIONAL: BuildFormValidator
-  readonly USER_CONFIRM_PASSWORD: BuildFormValidator
-  readonly USER_VIDEO_QUOTA: BuildFormValidator
-  readonly USER_VIDEO_QUOTA_DAILY: BuildFormValidator
-  readonly USER_ROLE: BuildFormValidator
-  readonly USER_DISPLAY_NAME_REQUIRED: BuildFormValidator
-  readonly USER_DESCRIPTION: BuildFormValidator
-  readonly USER_TERMS: BuildFormValidator
-
-  readonly USER_BAN_REASON: BuildFormValidator
-
-  constructor () {
-
-    this.USER_USERNAME = {
-      VALIDATORS: [
-        Validators.required,
-        Validators.minLength(1),
-        Validators.maxLength(50),
-        Validators.pattern(/^[a-z0-9][a-z0-9._]*$/)
-      ],
-      MESSAGES: {
-        'required': $localize`Username is required.`,
-        'minlength': $localize`Username must be at least 1 character long.`,
-        'maxlength': $localize`Username cannot be more than 50 characters long.`,
-        'pattern': $localize`Username should be lowercase alphanumeric; dots and underscores are allowed.`
-      }
-    }
-
-    this.USER_CHANNEL_NAME = {
-      VALIDATORS: [
-        Validators.required,
-        Validators.minLength(1),
-        Validators.maxLength(50),
-        Validators.pattern(/^[a-z0-9][a-z0-9._]*$/)
-      ],
-      MESSAGES: {
-        'required': $localize`Channel name is required.`,
-        'minlength': $localize`Channel name must be at least 1 character long.`,
-        'maxlength': $localize`Channel name cannot be more than 50 characters long.`,
-        'pattern': $localize`Channel name should be lowercase alphanumeric; dots and underscores are allowed.`
-      }
-    }
-
-    this.USER_EMAIL = {
-      VALIDATORS: [ Validators.required, Validators.email ],
-      MESSAGES: {
-        'required': $localize`Email is required.`,
-        'email': $localize`Email must be valid.`
-      }
-    }
-
-    this.USER_PASSWORD = {
-      VALIDATORS: [
-        Validators.required,
-        Validators.minLength(6),
-        Validators.maxLength(255)
-      ],
-      MESSAGES: {
-        'required': $localize`Password is required.`,
-        'minlength': $localize`Password must be at least 6 characters long.`,
-        'maxlength': $localize`Password cannot be more than 255 characters long.`
-      }
-    }
-
-    this.USER_PASSWORD_OPTIONAL = {
-      VALIDATORS: [
-        Validators.minLength(6),
-        Validators.maxLength(255)
-      ],
-      MESSAGES: {
-        'minlength': $localize`Password must be at least 6 characters long.`,
-        'maxlength': $localize`Password cannot be more than 255 characters long.`
-      }
-    }
-
-    this.USER_CONFIRM_PASSWORD = {
-      VALIDATORS: [],
-      MESSAGES: {
-        'matchPassword': $localize`The new password and the confirmed password do not correspond.`
-      }
-    }
-
-    this.USER_VIDEO_QUOTA = {
-      VALIDATORS: [ Validators.required, Validators.min(-1) ],
-      MESSAGES: {
-        'required': $localize`Video quota is required.`,
-        'min': $localize`Quota must be greater than -1.`
-      }
-    }
-    this.USER_VIDEO_QUOTA_DAILY = {
-      VALIDATORS: [ Validators.required, Validators.min(-1) ],
-      MESSAGES: {
-        'required': $localize`Daily upload limit is required.`,
-        'min': $localize`Daily upload limit must be greater than -1.`
-      }
-    }
-
-    this.USER_ROLE = {
-      VALIDATORS: [ Validators.required ],
-      MESSAGES: {
-        'required': $localize`User role is required.`
-      }
-    }
-
-    this.USER_DISPLAY_NAME_REQUIRED = this.getDisplayName(true)
-
-    this.USER_DESCRIPTION = {
-      VALIDATORS: [
-        Validators.minLength(3),
-        Validators.maxLength(1000)
-      ],
-      MESSAGES: {
-        'minlength': $localize`Description must be at least 3 characters long.`,
-        'maxlength': $localize`Description cannot be more than 1000 characters long.`
-      }
-    }
-
-    this.USER_TERMS = {
-      VALIDATORS: [
-        Validators.requiredTrue
-      ],
-      MESSAGES: {
-        'required': $localize`You must agree with the instance terms in order to register on it.`
-      }
-    }
-
-    this.USER_BAN_REASON = {
-      VALIDATORS: [
-        Validators.minLength(3),
-        Validators.maxLength(250)
-      ],
-      MESSAGES: {
-        'minlength': $localize`Ban reason must be at least 3 characters long.`,
-        'maxlength': $localize`Ban reason cannot be more than 250 characters long.`
-      }
-    }
-  }
-
-  private getDisplayName (required: boolean) {
-    const control = {
-      VALIDATORS: [
-        Validators.minLength(1),
-        Validators.maxLength(120)
-      ],
-      MESSAGES: {
-        'required': $localize`Display name is required.`,
-        'minlength': $localize`Display name must be at least 1 character long.`,
-        'maxlength': $localize`Display name cannot be more than 50 characters long.`
-      }
-    }
-
-    if (required) control.VALIDATORS.push(Validators.required)
-
-    return control
-  }
-}
diff --git a/client/src/app/shared/shared-forms/form-validators/video-accept-ownership-validators.service.ts b/client/src/app/shared/shared-forms/form-validators/video-accept-ownership-validators.service.ts
deleted file mode 100644
index aed9e9cdd..000000000
--- a/client/src/app/shared/shared-forms/form-validators/video-accept-ownership-validators.service.ts
+++ /dev/null
@@ -1,17 +0,0 @@
-import { Injectable } from '@angular/core'
-import { Validators } from '@angular/forms'
-import { BuildFormValidator } from './form-validator.service'
-
-@Injectable()
-export class VideoAcceptOwnershipValidatorsService {
-  readonly CHANNEL: BuildFormValidator
-
-  constructor () {
-    this.CHANNEL = {
-      VALIDATORS: [ Validators.required ],
-      MESSAGES: {
-        'required': $localize`The channel is required.`
-      }
-    }
-  }
-}
diff --git a/client/src/app/shared/shared-forms/form-validators/video-block-validators.service.ts b/client/src/app/shared/shared-forms/form-validators/video-block-validators.service.ts
deleted file mode 100644
index bce1880dc..000000000
--- a/client/src/app/shared/shared-forms/form-validators/video-block-validators.service.ts
+++ /dev/null
@@ -1,18 +0,0 @@
-import { Injectable } from '@angular/core'
-import { Validators } from '@angular/forms'
-import { BuildFormValidator } from './form-validator.service'
-
-@Injectable()
-export class VideoBlockValidatorsService {
-  readonly VIDEO_BLOCK_REASON: BuildFormValidator
-
-  constructor () {
-    this.VIDEO_BLOCK_REASON = {
-      VALIDATORS: [ Validators.minLength(2), Validators.maxLength(300) ],
-      MESSAGES: {
-        'minlength': $localize`Block reason must be at least 2 characters long.`,
-        'maxlength': $localize`Block reason cannot be more than 300 characters long.`
-      }
-    }
-  }
-}
diff --git a/client/src/app/shared/shared-forms/form-validators/video-captions-validators.service.ts b/client/src/app/shared/shared-forms/form-validators/video-captions-validators.service.ts
deleted file mode 100644
index 7e90264e5..000000000
--- a/client/src/app/shared/shared-forms/form-validators/video-captions-validators.service.ts
+++ /dev/null
@@ -1,26 +0,0 @@
-import { Injectable } from '@angular/core'
-import { Validators } from '@angular/forms'
-import { BuildFormValidator } from './form-validator.service'
-
-@Injectable()
-export class VideoCaptionsValidatorsService {
-  readonly VIDEO_CAPTION_LANGUAGE: BuildFormValidator
-  readonly VIDEO_CAPTION_FILE: BuildFormValidator
-
-  constructor () {
-
-    this.VIDEO_CAPTION_LANGUAGE = {
-      VALIDATORS: [ Validators.required ],
-      MESSAGES: {
-        'required': $localize`Video caption language is required.`
-      }
-    }
-
-    this.VIDEO_CAPTION_FILE = {
-      VALIDATORS: [ Validators.required ],
-      MESSAGES: {
-        'required': $localize`Video caption file is required.`
-      }
-    }
-  }
-}
diff --git a/client/src/app/shared/shared-forms/form-validators/video-change-ownership-validators.service.ts b/client/src/app/shared/shared-forms/form-validators/video-change-ownership-validators.service.ts
deleted file mode 100644
index 8c809a0d5..000000000
--- a/client/src/app/shared/shared-forms/form-validators/video-change-ownership-validators.service.ts
+++ /dev/null
@@ -1,26 +0,0 @@
-import { Injectable } from '@angular/core'
-import { AbstractControl, ValidationErrors, Validators } from '@angular/forms'
-import { BuildFormValidator } from './form-validator.service'
-
-@Injectable()
-export class VideoChangeOwnershipValidatorsService {
-  readonly USERNAME: BuildFormValidator
-
-  constructor () {
-    this.USERNAME = {
-      VALIDATORS: [ Validators.required, this.localAccountValidator ],
-      MESSAGES: {
-        'required': $localize`The username is required.`,
-        'localAccountOnly': $localize`You can only transfer ownership to a local account`
-      }
-    }
-  }
-
-  localAccountValidator (control: AbstractControl): ValidationErrors {
-    if (control.value.includes('@')) {
-      return { 'localAccountOnly': true }
-    }
-
-    return null
-  }
-}
diff --git a/client/src/app/shared/shared-forms/form-validators/video-channel-validators.service.ts b/client/src/app/shared/shared-forms/form-validators/video-channel-validators.service.ts
deleted file mode 100644
index 3e7444196..000000000
--- a/client/src/app/shared/shared-forms/form-validators/video-channel-validators.service.ts
+++ /dev/null
@@ -1,63 +0,0 @@
-import { Injectable } from '@angular/core'
-import { Validators } from '@angular/forms'
-import { BuildFormValidator } from './form-validator.service'
-
-@Injectable()
-export class VideoChannelValidatorsService {
-  readonly VIDEO_CHANNEL_NAME: BuildFormValidator
-  readonly VIDEO_CHANNEL_DISPLAY_NAME: BuildFormValidator
-  readonly VIDEO_CHANNEL_DESCRIPTION: BuildFormValidator
-  readonly VIDEO_CHANNEL_SUPPORT: BuildFormValidator
-
-  constructor () {
-    this.VIDEO_CHANNEL_NAME = {
-      VALIDATORS: [
-        Validators.required,
-        Validators.minLength(1),
-        Validators.maxLength(50),
-        Validators.pattern(/^[a-z0-9][a-z0-9._]*$/)
-      ],
-      MESSAGES: {
-        'required': $localize`Name is required.`,
-        'minlength': $localize`Name must be at least 1 character long.`,
-        'maxlength': $localize`Name cannot be more than 50 characters long.`,
-        'pattern': $localize`Name should be lowercase alphanumeric; dots and underscores are allowed.`
-      }
-    }
-
-    this.VIDEO_CHANNEL_DISPLAY_NAME = {
-      VALIDATORS: [
-        Validators.required,
-        Validators.minLength(1),
-        Validators.maxLength(50)
-      ],
-      MESSAGES: {
-        'required': $localize`Display name is required.`,
-        'minlength': $localize`Display name must be at least 1 character long.`,
-        'maxlength': $localize`Display name cannot be more than 50 characters long.`
-      }
-    }
-
-    this.VIDEO_CHANNEL_DESCRIPTION = {
-      VALIDATORS: [
-        Validators.minLength(3),
-        Validators.maxLength(1000)
-      ],
-      MESSAGES: {
-        'minlength': $localize`Description must be at least 3 characters long.`,
-        'maxlength': $localize`Description cannot be more than 1000 characters long.`
-      }
-    }
-
-    this.VIDEO_CHANNEL_SUPPORT = {
-      VALIDATORS: [
-        Validators.minLength(3),
-        Validators.maxLength(1000)
-      ],
-      MESSAGES: {
-        'minlength': $localize`Support text must be at least 3 characters long.`,
-        'maxlength': $localize`Support text cannot be more than 1000 characters long`
-      }
-    }
-  }
-}
diff --git a/client/src/app/shared/shared-forms/form-validators/video-comment-validators.service.ts b/client/src/app/shared/shared-forms/form-validators/video-comment-validators.service.ts
deleted file mode 100644
index 18e7ae264..000000000
--- a/client/src/app/shared/shared-forms/form-validators/video-comment-validators.service.ts
+++ /dev/null
@@ -1,19 +0,0 @@
-import { Injectable } from '@angular/core'
-import { Validators } from '@angular/forms'
-import { BuildFormValidator } from './form-validator.service'
-
-@Injectable()
-export class VideoCommentValidatorsService {
-  readonly VIDEO_COMMENT_TEXT: BuildFormValidator
-
-  constructor () {
-    this.VIDEO_COMMENT_TEXT = {
-      VALIDATORS: [ Validators.required, Validators.minLength(1), Validators.maxLength(3000) ],
-      MESSAGES: {
-        'required': $localize`Comment is required.`,
-        'minlength': $localize`Comment must be at least 2 characters long.`,
-        'maxlength': $localize`Comment cannot be more than 3000 characters long.`
-      }
-    }
-  }
-}
diff --git a/client/src/app/shared/shared-forms/form-validators/video-playlist-validators.service.ts b/client/src/app/shared/shared-forms/form-validators/video-playlist-validators.service.ts
deleted file mode 100644
index 3b45a40fd..000000000
--- a/client/src/app/shared/shared-forms/form-validators/video-playlist-validators.service.ts
+++ /dev/null
@@ -1,65 +0,0 @@
-import { Injectable } from '@angular/core'
-import { AbstractControl, Validators } from '@angular/forms'
-import { VideoPlaylistPrivacy } from '@shared/models'
-import { BuildFormValidator } from './form-validator.service'
-
-@Injectable()
-export class VideoPlaylistValidatorsService {
-  readonly VIDEO_PLAYLIST_DISPLAY_NAME: BuildFormValidator
-  readonly VIDEO_PLAYLIST_PRIVACY: BuildFormValidator
-  readonly VIDEO_PLAYLIST_DESCRIPTION: BuildFormValidator
-  readonly VIDEO_PLAYLIST_CHANNEL_ID: BuildFormValidator
-
-  constructor () {
-    this.VIDEO_PLAYLIST_DISPLAY_NAME = {
-      VALIDATORS: [
-        Validators.required,
-        Validators.minLength(1),
-        Validators.maxLength(120)
-      ],
-      MESSAGES: {
-        'required': $localize`Display name is required.`,
-        'minlength': $localize`Display name must be at least 1 character long.`,
-        'maxlength': $localize`Display name cannot be more than 120 characters long.`
-      }
-    }
-
-    this.VIDEO_PLAYLIST_PRIVACY = {
-      VALIDATORS: [
-        Validators.required
-      ],
-      MESSAGES: {
-        'required': $localize`Privacy is required.`
-      }
-    }
-
-    this.VIDEO_PLAYLIST_DESCRIPTION = {
-      VALIDATORS: [
-        Validators.minLength(3),
-        Validators.maxLength(1000)
-      ],
-      MESSAGES: {
-        'minlength': $localize`Description must be at least 3 characters long.`,
-        'maxlength': $localize`Description cannot be more than 1000 characters long.`
-      }
-    }
-
-    this.VIDEO_PLAYLIST_CHANNEL_ID = {
-      VALIDATORS: [ ],
-      MESSAGES: {
-        'required': $localize`The channel is required when the playlist is public.`
-      }
-    }
-  }
-
-  setChannelValidator (channelControl: AbstractControl, privacy: VideoPlaylistPrivacy) {
-    if (privacy.toString() === VideoPlaylistPrivacy.PUBLIC.toString()) {
-      channelControl.setValidators([ Validators.required ])
-    } else {
-      channelControl.setValidators(null)
-    }
-
-    channelControl.markAsDirty()
-    channelControl.updateValueAndValidity()
-  }
-}
diff --git a/client/src/app/shared/shared-forms/form-validators/video-validators.service.ts b/client/src/app/shared/shared-forms/form-validators/video-validators.service.ts
deleted file mode 100644
index 8119c1ae7..000000000
--- a/client/src/app/shared/shared-forms/form-validators/video-validators.service.ts
+++ /dev/null
@@ -1,122 +0,0 @@
-import { Injectable } from '@angular/core'
-import { AbstractControl, ValidationErrors, ValidatorFn, Validators } from '@angular/forms'
-import { BuildFormValidator } from './form-validator.service'
-
-@Injectable()
-export class VideoValidatorsService {
-  readonly VIDEO_NAME: BuildFormValidator
-  readonly VIDEO_PRIVACY: BuildFormValidator
-  readonly VIDEO_CATEGORY: BuildFormValidator
-  readonly VIDEO_LICENCE: BuildFormValidator
-  readonly VIDEO_LANGUAGE: BuildFormValidator
-  readonly VIDEO_IMAGE: BuildFormValidator
-  readonly VIDEO_CHANNEL: BuildFormValidator
-  readonly VIDEO_DESCRIPTION: BuildFormValidator
-  readonly VIDEO_TAGS_ARRAY: BuildFormValidator
-  readonly VIDEO_TAG: BuildFormValidator
-  readonly VIDEO_SUPPORT: BuildFormValidator
-  readonly VIDEO_SCHEDULE_PUBLICATION_AT: BuildFormValidator
-  readonly VIDEO_ORIGINALLY_PUBLISHED_AT: BuildFormValidator
-
-  constructor () {
-
-    this.VIDEO_NAME = {
-      VALIDATORS: [ Validators.required, Validators.minLength(3), Validators.maxLength(120) ],
-      MESSAGES: {
-        'required': $localize`Video name is required.`,
-        'minlength': $localize`Video name must be at least 3 characters long.`,
-        'maxlength': $localize`Video name cannot be more than 120 characters long.`
-      }
-    }
-
-    this.VIDEO_PRIVACY = {
-      VALIDATORS: [ Validators.required ],
-      MESSAGES: {
-        'required': $localize`Video privacy is required.`
-      }
-    }
-
-    this.VIDEO_CATEGORY = {
-      VALIDATORS: [ ],
-      MESSAGES: {}
-    }
-
-    this.VIDEO_LICENCE = {
-      VALIDATORS: [ ],
-      MESSAGES: {}
-    }
-
-    this.VIDEO_LANGUAGE = {
-      VALIDATORS: [ ],
-      MESSAGES: {}
-    }
-
-    this.VIDEO_IMAGE = {
-      VALIDATORS: [ ],
-      MESSAGES: {}
-    }
-
-    this.VIDEO_CHANNEL = {
-      VALIDATORS: [ Validators.required ],
-      MESSAGES: {
-        'required': $localize`Video channel is required.`
-      }
-    }
-
-    this.VIDEO_DESCRIPTION = {
-      VALIDATORS: [ Validators.minLength(3), Validators.maxLength(10000) ],
-      MESSAGES: {
-        'minlength': $localize`Video description must be at least 3 characters long.`,
-        'maxlength': $localize`Video description cannot be more than 10000 characters long.`
-      }
-    }
-
-    this.VIDEO_TAG = {
-      VALIDATORS: [ Validators.minLength(2), Validators.maxLength(30) ],
-      MESSAGES: {
-        'minlength': $localize`A tag should be more than 2 characters long.`,
-        'maxlength': $localize`A tag should be less than 30 characters long.`
-      }
-    }
-
-    this.VIDEO_TAGS_ARRAY = {
-      VALIDATORS: [ Validators.maxLength(5), this.arrayTagLengthValidator() ],
-      MESSAGES: {
-        'maxlength': $localize`A maximum of 5 tags can be used on a video.`,
-        'arrayTagLength': $localize`A tag should be more than 2, and less than 30 characters long.`
-      }
-    }
-
-    this.VIDEO_SUPPORT = {
-      VALIDATORS: [ Validators.minLength(3), Validators.maxLength(1000) ],
-      MESSAGES: {
-        'minlength': $localize`Video support must be at least 3 characters long.`,
-        'maxlength': $localize`Video support cannot be more than 1000 characters long.`
-      }
-    }
-
-    this.VIDEO_SCHEDULE_PUBLICATION_AT = {
-      VALIDATORS: [ ],
-      MESSAGES: {
-        'required': $localize`A date is required to schedule video update.`
-      }
-    }
-
-    this.VIDEO_ORIGINALLY_PUBLISHED_AT = {
-      VALIDATORS: [ ],
-      MESSAGES: {}
-    }
-  }
-
-  arrayTagLengthValidator (min = 2, max = 30): ValidatorFn {
-    return (control: AbstractControl): ValidationErrors => {
-      const array = control.value as Array<string>
-
-      if (array.every(e => e.length > min && e.length < max)) {
-        return null
-      }
-
-      return { 'arrayTagLength': true }
-    }
-  }
-}
diff --git a/client/src/app/shared/shared-forms/index.ts b/client/src/app/shared/shared-forms/index.ts
index 747df65cf..b2c7fa9ba 100644
--- a/client/src/app/shared/shared-forms/index.ts
+++ b/client/src/app/shared/shared-forms/index.ts
@@ -1,4 +1,4 @@
-export * from './form-validators'
+export * from './form-validator.service'
 export * from './form-reactive'
 export * from './select'
 export * from './input-readonly-copy.component'
diff --git a/client/src/app/shared/shared-forms/shared-form.module.ts b/client/src/app/shared/shared-forms/shared-form.module.ts
index 0e0ed5bab..1946ac21f 100644
--- a/client/src/app/shared/shared-forms/shared-form.module.ts
+++ b/client/src/app/shared/shared-forms/shared-form.module.ts
@@ -1,37 +1,20 @@
 
-import { NgModule } from '@angular/core'
-import { FormsModule, ReactiveFormsModule } from '@angular/forms'
 import { InputMaskModule } from 'primeng/inputmask'
 import { InputSwitchModule } from 'primeng/inputswitch'
+import { NgModule } from '@angular/core'
+import { FormsModule, ReactiveFormsModule } from '@angular/forms'
 import { NgSelectModule } from '@ng-select/ng-select'
-import { BatchDomainsValidatorsService } from '@app/shared/shared-forms/form-validators/batch-domains-validators.service'
 import { SharedGlobalIconModule } from '../shared-icons'
 import { SharedMainModule } from '../shared-main/shared-main.module'
-import {
-  CustomConfigValidatorsService,
-  FormValidatorService,
-  InstanceValidatorsService,
-  LoginValidatorsService,
-  ResetPasswordValidatorsService,
-  UserValidatorsService,
-  AbuseValidatorsService,
-  VideoAcceptOwnershipValidatorsService,
-  VideoBlockValidatorsService,
-  VideoCaptionsValidatorsService,
-  VideoChangeOwnershipValidatorsService,
-  VideoChannelValidatorsService,
-  VideoCommentValidatorsService,
-  VideoPlaylistValidatorsService,
-  VideoValidatorsService
-} from './form-validators'
+import { FormValidatorService } from './form-validator.service'
 import { InputReadonlyCopyComponent } from './input-readonly-copy.component'
 import { MarkdownTextareaComponent } from './markdown-textarea.component'
 import { PeertubeCheckboxComponent } from './peertube-checkbox.component'
 import { PreviewUploadComponent } from './preview-upload.component'
 import { ReactiveFileComponent } from './reactive-file.component'
+import { SelectChannelComponent, SelectCheckboxComponent, SelectOptionsComponent, SelectTagsComponent } from './select'
 import { TextareaAutoResizeDirective } from './textarea-autoresize.directive'
 import { TimestampInputComponent } from './timestamp-input.component'
-import { SelectChannelComponent, SelectCheckboxComponent, SelectOptionsComponent, SelectTagsComponent } from './select'
 
 @NgModule({
   imports: [
@@ -84,23 +67,7 @@ import { SelectChannelComponent, SelectCheckboxComponent, SelectOptionsComponent
   ],
 
   providers: [
-    CustomConfigValidatorsService,
-    FormValidatorService,
-    LoginValidatorsService,
-    InstanceValidatorsService,
-    LoginValidatorsService,
-    ResetPasswordValidatorsService,
-    UserValidatorsService,
-    AbuseValidatorsService,
-    VideoAcceptOwnershipValidatorsService,
-    VideoBlockValidatorsService,
-    VideoCaptionsValidatorsService,
-    VideoChangeOwnershipValidatorsService,
-    VideoChannelValidatorsService,
-    VideoCommentValidatorsService,
-    VideoPlaylistValidatorsService,
-    VideoValidatorsService,
-    BatchDomainsValidatorsService
+    FormValidatorService
   ]
 })
 export class SharedFormModule { }
diff --git a/client/src/app/shared/shared-moderation/batch-domains-modal.component.ts b/client/src/app/shared/shared-moderation/batch-domains-modal.component.ts
index 7193ccb1b..6edbb6023 100644
--- a/client/src/app/shared/shared-moderation/batch-domains-modal.component.ts
+++ b/client/src/app/shared/shared-moderation/batch-domains-modal.component.ts
@@ -1,7 +1,8 @@
 import { Component, EventEmitter, Input, OnInit, Output, ViewChild } from '@angular/core'
-import { BatchDomainsValidatorsService, FormReactive, FormValidatorService } from '@app/shared/shared-forms'
+import { FormReactive, FormValidatorService } from '@app/shared/shared-forms'
 import { NgbModal } from '@ng-bootstrap/ng-bootstrap'
 import { NgbModalRef } from '@ng-bootstrap/ng-bootstrap/modal/modal-ref'
+import { DOMAINS_VALIDATOR, getNotEmptyHosts } from '../form-validators/batch-domains-validators'
 
 @Component({
   selector: 'my-batch-domains-modal',
@@ -18,8 +19,7 @@ export class BatchDomainsModalComponent extends FormReactive implements OnInit {
 
   constructor (
     protected formValidatorService: FormValidatorService,
-    private modalService: NgbModal,
-    private batchDomainsValidatorsService: BatchDomainsValidatorsService
+    private modalService: NgbModal
   ) {
     super()
   }
@@ -28,7 +28,7 @@ export class BatchDomainsModalComponent extends FormReactive implements OnInit {
     if (!this.action) this.action = $localize`Process domains`
 
     this.buildForm({
-      domains: this.batchDomainsValidatorsService.DOMAINS
+      domains: DOMAINS_VALIDATOR
     })
   }
 
@@ -42,7 +42,7 @@ export class BatchDomainsModalComponent extends FormReactive implements OnInit {
 
   submit () {
     this.domains.emit(
-      this.batchDomainsValidatorsService.getNotEmptyHosts(this.form.controls['domains'].value)
+      getNotEmptyHosts(this.form.controls['domains'].value)
     )
     this.form.reset()
     this.hide()
diff --git a/client/src/app/shared/shared-moderation/report-modals/account-report.component.ts b/client/src/app/shared/shared-moderation/report-modals/account-report.component.ts
index 8ab2fe940..cc8875f77 100644
--- a/client/src/app/shared/shared-moderation/report-modals/account-report.component.ts
+++ b/client/src/app/shared/shared-moderation/report-modals/account-report.component.ts
@@ -1,7 +1,8 @@
 import { mapValues, pickBy } from 'lodash-es'
 import { Component, Input, OnInit, ViewChild } from '@angular/core'
 import { Notifier } from '@app/core'
-import { AbuseValidatorsService, FormReactive, FormValidatorService } from '@app/shared/shared-forms'
+import { ABUSE_REASON_VALIDATOR } from '@app/shared/form-validators/abuse-validators'
+import { FormReactive, FormValidatorService } from '@app/shared/shared-forms'
 import { Account } from '@app/shared/shared-main'
 import { NgbModal } from '@ng-bootstrap/ng-bootstrap'
 import { NgbModalRef } from '@ng-bootstrap/ng-bootstrap/modal/modal-ref'
@@ -28,7 +29,6 @@ export class AccountReportComponent extends FormReactive implements OnInit {
   constructor (
     protected formValidatorService: FormValidatorService,
     private modalService: NgbModal,
-    private abuseValidatorsService: AbuseValidatorsService,
     private abuseService: AbuseService,
     private notifier: Notifier
   ) {
@@ -51,7 +51,7 @@ export class AccountReportComponent extends FormReactive implements OnInit {
     this.modalTitle = $localize`Report ${this.account.displayName}`
 
     this.buildForm({
-      reason: this.abuseValidatorsService.ABUSE_REASON,
+      reason: ABUSE_REASON_VALIDATOR,
       predefinedReasons: mapValues(abusePredefinedReasonsMap, r => null)
     })
 
diff --git a/client/src/app/shared/shared-moderation/report-modals/comment-report.component.ts b/client/src/app/shared/shared-moderation/report-modals/comment-report.component.ts
index d75f4d717..c7395c7b7 100644
--- a/client/src/app/shared/shared-moderation/report-modals/comment-report.component.ts
+++ b/client/src/app/shared/shared-moderation/report-modals/comment-report.component.ts
@@ -1,7 +1,8 @@
 import { mapValues, pickBy } from 'lodash-es'
 import { Component, Input, OnInit, ViewChild } from '@angular/core'
 import { Notifier } from '@app/core'
-import { AbuseValidatorsService, FormReactive, FormValidatorService } from '@app/shared/shared-forms'
+import { ABUSE_REASON_VALIDATOR } from '@app/shared/form-validators/abuse-validators'
+import { FormReactive, FormValidatorService } from '@app/shared/shared-forms'
 import { VideoComment } from '@app/shared/shared-video-comment'
 import { NgbModal } from '@ng-bootstrap/ng-bootstrap'
 import { NgbModalRef } from '@ng-bootstrap/ng-bootstrap/modal/modal-ref'
@@ -28,7 +29,6 @@ export class CommentReportComponent extends FormReactive implements OnInit {
   constructor (
     protected formValidatorService: FormValidatorService,
     private modalService: NgbModal,
-    private abuseValidatorsService: AbuseValidatorsService,
     private abuseService: AbuseService,
     private notifier: Notifier
   ) {
@@ -51,7 +51,7 @@ export class CommentReportComponent extends FormReactive implements OnInit {
     this.modalTitle = $localize`Report comment`
 
     this.buildForm({
-      reason: this.abuseValidatorsService.ABUSE_REASON,
+      reason: ABUSE_REASON_VALIDATOR,
       predefinedReasons: mapValues(abusePredefinedReasonsMap, r => null)
     })
 
diff --git a/client/src/app/shared/shared-moderation/report-modals/video-report.component.ts b/client/src/app/shared/shared-moderation/report-modals/video-report.component.ts
index edff6d325..5b06c0bc7 100644
--- a/client/src/app/shared/shared-moderation/report-modals/video-report.component.ts
+++ b/client/src/app/shared/shared-moderation/report-modals/video-report.component.ts
@@ -3,7 +3,8 @@ import { buildVideoLink, buildVideoOrPlaylistEmbed } from 'src/assets/player/uti
 import { Component, Input, OnInit, ViewChild } from '@angular/core'
 import { DomSanitizer, SafeHtml } from '@angular/platform-browser'
 import { Notifier } from '@app/core'
-import { AbuseValidatorsService, FormReactive, FormValidatorService } from '@app/shared/shared-forms'
+import { ABUSE_REASON_VALIDATOR } from '@app/shared/form-validators/abuse-validators'
+import { FormReactive, FormValidatorService } from '@app/shared/shared-forms'
 import { NgbModal } from '@ng-bootstrap/ng-bootstrap'
 import { NgbModalRef } from '@ng-bootstrap/ng-bootstrap/modal/modal-ref'
 import { abusePredefinedReasonsMap } from '@shared/core-utils/abuse'
@@ -30,7 +31,6 @@ export class VideoReportComponent extends FormReactive implements OnInit {
   constructor (
     protected formValidatorService: FormValidatorService,
     private modalService: NgbModal,
-    private abuseValidatorsService: AbuseValidatorsService,
     private abuseService: AbuseService,
     private notifier: Notifier,
     private sanitizer: DomSanitizer
@@ -68,7 +68,7 @@ export class VideoReportComponent extends FormReactive implements OnInit {
 
   ngOnInit () {
     this.buildForm({
-      reason: this.abuseValidatorsService.ABUSE_REASON,
+      reason: ABUSE_REASON_VALIDATOR,
       predefinedReasons: mapValues(abusePredefinedReasonsMap, r => null),
       timestamp: {
         hasStart: null,
diff --git a/client/src/app/shared/shared-moderation/user-ban-modal.component.ts b/client/src/app/shared/shared-moderation/user-ban-modal.component.ts
index f9a0381c5..afc69a1b8 100644
--- a/client/src/app/shared/shared-moderation/user-ban-modal.component.ts
+++ b/client/src/app/shared/shared-moderation/user-ban-modal.component.ts
@@ -1,9 +1,10 @@
 import { Component, EventEmitter, OnInit, Output, ViewChild } from '@angular/core'
 import { Notifier, UserService } from '@app/core'
-import { FormReactive, FormValidatorService, UserValidatorsService } from '@app/shared/shared-forms'
+import { FormReactive, FormValidatorService } from '@app/shared/shared-forms'
 import { NgbModal } from '@ng-bootstrap/ng-bootstrap'
 import { NgbModalRef } from '@ng-bootstrap/ng-bootstrap/modal/modal-ref'
 import { User } from '@shared/models'
+import { USER_BAN_REASON_VALIDATOR } from '../form-validators/user-validators'
 
 @Component({
   selector: 'my-user-ban-modal',
@@ -21,15 +22,14 @@ export class UserBanModalComponent extends FormReactive implements OnInit {
     protected formValidatorService: FormValidatorService,
     private modalService: NgbModal,
     private notifier: Notifier,
-    private userService: UserService,
-    private userValidatorsService: UserValidatorsService
+    private userService: UserService
   ) {
     super()
   }
 
   ngOnInit () {
     this.buildForm({
-      reason: this.userValidatorsService.USER_BAN_REASON
+      reason: USER_BAN_REASON_VALIDATOR
     })
   }
 
diff --git a/client/src/app/shared/shared-moderation/video-block.component.ts b/client/src/app/shared/shared-moderation/video-block.component.ts
index 2bef9efdd..fb47989dc 100644
--- a/client/src/app/shared/shared-moderation/video-block.component.ts
+++ b/client/src/app/shared/shared-moderation/video-block.component.ts
@@ -1,9 +1,10 @@
 import { Component, EventEmitter, Input, OnInit, Output, ViewChild } from '@angular/core'
 import { Notifier } from '@app/core'
-import { FormReactive, FormValidatorService, VideoBlockValidatorsService } from '@app/shared/shared-forms'
+import { FormReactive, FormValidatorService } from '@app/shared/shared-forms'
 import { Video } from '@app/shared/shared-main'
 import { NgbModal } from '@ng-bootstrap/ng-bootstrap'
 import { NgbModalRef } from '@ng-bootstrap/ng-bootstrap/modal/modal-ref'
+import { VIDEO_BLOCK_REASON_VALIDATOR } from '../form-validators/video-block-validators'
 import { VideoBlockService } from './video-block.service'
 
 @Component({
@@ -25,7 +26,6 @@ export class VideoBlockComponent extends FormReactive implements OnInit {
   constructor (
     protected formValidatorService: FormValidatorService,
     private modalService: NgbModal,
-    private videoBlockValidatorsService: VideoBlockValidatorsService,
     private videoBlocklistService: VideoBlockService,
     private notifier: Notifier
   ) {
@@ -36,7 +36,7 @@ export class VideoBlockComponent extends FormReactive implements OnInit {
     const defaultValues = { unfederate: 'true' }
 
     this.buildForm({
-      reason: this.videoBlockValidatorsService.VIDEO_BLOCK_REASON,
+      reason: VIDEO_BLOCK_REASON_VALIDATOR,
       unfederate: null
     }, defaultValues)
   }
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 286ecac02..b46c91bf8 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
@@ -1,5 +1,6 @@
 import { Component, Input, OnInit } from '@angular/core'
-import { FormReactive, FormValidatorService, UserValidatorsService } from '@app/shared/shared-forms'
+import { FormReactive, FormValidatorService } from '@app/shared/shared-forms'
+import { USER_EMAIL_VALIDATOR } from '../form-validators/user-validators'
 
 @Component({
   selector: 'my-remote-subscribe',
@@ -12,15 +13,14 @@ export class RemoteSubscribeComponent extends FormReactive implements OnInit {
   @Input() showHelp = false
 
   constructor (
-    protected formValidatorService: FormValidatorService,
-    private userValidatorsService: UserValidatorsService
+    protected formValidatorService: FormValidatorService
   ) {
     super()
   }
 
   ngOnInit () {
     this.buildForm({
-      text: this.userValidatorsService.USER_EMAIL
+      text: USER_EMAIL_VALIDATOR
     })
   }
 
diff --git a/client/src/app/shared/shared-video-playlist/video-add-to-playlist.component.ts b/client/src/app/shared/shared-video-playlist/video-add-to-playlist.component.ts
index 757ffa099..41f16e0bf 100644
--- a/client/src/app/shared/shared-video-playlist/video-add-to-playlist.component.ts
+++ b/client/src/app/shared/shared-video-playlist/video-add-to-playlist.component.ts
@@ -3,9 +3,10 @@ import { Subject, Subscription } from 'rxjs'
 import { debounceTime, filter } from 'rxjs/operators'
 import { ChangeDetectionStrategy, ChangeDetectorRef, Component, Input, OnChanges, OnDestroy, OnInit, SimpleChanges } from '@angular/core'
 import { AuthService, DisableForReuseHook, Notifier } from '@app/core'
-import { FormReactive, FormValidatorService, VideoPlaylistValidatorsService } from '@app/shared/shared-forms'
+import { FormReactive, FormValidatorService } from '@app/shared/shared-forms'
 import { Video, VideoExistInPlaylist, VideoPlaylistCreate, VideoPlaylistElementCreate, VideoPlaylistPrivacy } from '@shared/models'
 import { secondsToTime } from '../../../assets/player/utils'
+import { VIDEO_PLAYLIST_DISPLAY_NAME_VALIDATOR } from '../form-validators/video-playlist-validators'
 import { CachedPlaylist, VideoPlaylistService } from './video-playlist.service'
 
 const logger = debug('peertube:playlists:VideoAddToPlaylistComponent')
@@ -53,7 +54,6 @@ export class VideoAddToPlaylistComponent extends FormReactive implements OnInit,
     private authService: AuthService,
     private notifier: Notifier,
     private videoPlaylistService: VideoPlaylistService,
-    private videoPlaylistValidatorsService: VideoPlaylistValidatorsService,
     private cd: ChangeDetectorRef
   ) {
     super()
@@ -65,7 +65,7 @@ export class VideoAddToPlaylistComponent extends FormReactive implements OnInit,
 
   ngOnInit () {
     this.buildForm({
-      displayName: this.videoPlaylistValidatorsService.VIDEO_PLAYLIST_DISPLAY_NAME
+      displayName: VIDEO_PLAYLIST_DISPLAY_NAME_VALIDATOR
     })
 
     this.videoPlaylistService.listenToMyAccountPlaylistsChange()