We don't need services anymore for validators

17 files changed, 701 insertions, 0 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': $localize`Search index URL should be a URL`
+  }
+}
diff --git a/client/src/app/shared/form-validators/form-validator.model.ts b/client/src/app/shared/form-validators/form-validator.model.ts
new file mode 100644
index 000000000..248a3b1d3
--- /dev/null
+++ b/client/src/app/shared/form-validators/form-validator.model.ts
@@ -0,0 +1,14 @@
+import { ValidatorFn } from '@angular/forms'
+
+export type BuildFormValidator = {
+  VALIDATORS: ValidatorFn[],
+  MESSAGES: { [ name: string ]: string }
+}
+
+export type BuildFormArgument = {
+  [ id: string ]: BuildFormValidator | BuildFormArgument
+}
+
+export type BuildFormDefaultValues = {
+  [ name: string ]: string | string[] | BuildFormDefaultValues
+}
diff --git a/client/src/app/shared/form-validators/host.ts b/client/src/app/shared/form-validators/host.ts
new file mode 100644
index 000000000..c18a35f9b
--- /dev/null
+++ b/client/src/app/shared/form-validators/host.ts
@@ -0,0 +1,8 @@
+export function validateHost (value: string) {
+  // Thanks to http://stackoverflow.com/a/106223
+  const HOST_REGEXP = new RegExp(
+    '^(([a-zA-Z0-9]|[a-zA-Z0-9][a-zA-Z0-9\-]*[a-zA-Z0-9])\.)*([A-Za-z0-9]|[A-Za-z0-9][A-Za-z0-9\-]*[A-Za-z0-9])$'
+  )
+
+  return HOST_REGEXP.test(value)
+}
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 }
+  }
+}