fix(sharing): enforce password policy

Signed-off-by: Ferdinand Thiessen <opensource@fthiessen.de>

Author: susnux

apps/files_sharing/src/components/SharingEntryLink.vue

@@ -79,7 +79,7 @@
 				:value.sync="share.newPassword"
 				:disabled="saving"
 				:required="config.enableLinkPasswordByDefault || config.enforcePasswordForPublicLink"
-				:minlength="isPasswordPolicyEnabled && config.passwordPolicy.minLength"
+				:minlength="minPasswordLength"
 				autocomplete="new-password"
 				@submit="onNewLinkShare(true)">
 				<template #icon>
@@ -342,6 +342,16 @@ export default {
 	},
 
 	computed: {
+		minPasswordLength() {
+			if (this.isPasswordPolicyEnabled) {
+				if (this.config.passwordPolicy.policies?.sharing?.minLength) {
+					return this.config.passwordPolicy.policies.sharing.minLength
+				}
+				return this.config.passwordPolicy.minLength
+			}
+			return 0
+		},
+
 		/**
 		 * Link share label
 		 *

apps/files_sharing/src/services/ConfigService.ts

@@ -5,14 +5,24 @@
 import { getCapabilities } from '@nextcloud/capabilities'
 import { loadState } from '@nextcloud/initial-state'
 
-type PasswordPolicyCapabilities = {
+type PasswordPolicySettings = {
 	enforceNonCommonPassword: boolean
 	enforceNumericCharacters: boolean
 	enforceSpecialCharacters: boolean
 	enforceUpperLowerCase: boolean
 	minLength: number
 }
 
+type PasswordPolicyCapabilities = PasswordPolicySettings & {
+	api?: {
+		generate: string
+		validate: string
+	}
+	policies?: {
+		sharing: PasswordPolicySettings
+	}
+}
+
 type FileSharingCapabilities = {
 	api_enabled: boolean,
 	public: {

apps/files_sharing/src/utils/GeneratePassword.ts

@@ -21,7 +21,9 @@ export default async function(verbose = false): Promise<string> {
 	// password policy is enabled, let's request a pass
 	if (config.passwordPolicy.api && config.passwordPolicy.api.generate) {
 		try {
-			const request = await axios.get(config.passwordPolicy.api.generate)
+			const request = await axios.get(config.passwordPolicy.api.generate, {
+				params: { context: 'sharing' },
+			})
 			if (request.data.ocs.data.password) {
 				if (verbose) {
 					showSuccess(t('files_sharing', 'Password created successfully'))