Show warning on the share settings when the File Shares app is disabled

Closes #3706

Signed-off-by: Thomas Citharel <tcit@tcit.fr>

3 files changed, 173 insertions, 151 deletions

diff --git a/apps/settings/lib/Settings/Admin/Sharing.php b/apps/settings/lib/Settings/Admin/Sharing.php
index 85d3e4d8d40..24be9f1426a 100644
--- a/apps/settings/lib/Settings/Admin/Sharing.php
+++ b/apps/settings/lib/Settings/Admin/Sharing.php
@@ -12,6 +12,7 @@
  * @author Roeland Jago Douma <roeland@famdouma.nl>
  * @author Sascha Wiswedel <sascha.wiswedel@nextcloud.com>
  * @author Vincent Petry <vincent@nextcloud.com>
+ * @author Thomas Citharel <nextcloud@tcit.fr>
  *
  * @license GNU AGPL version 3 or any later version
  *
@@ -31,7 +32,7 @@
  */
 namespace OCA\Settings\Settings\Admin;
 
-use OC\Share\Share;
+use OCP\App\IAppManager;
 use OCP\AppFramework\Http\TemplateResponse;
 use OCP\Constants;
 use OCP\IConfig;
@@ -50,13 +51,14 @@ class Sharing implements ISettings {
 	/** @var IManager */
 	private $shareManager;
 
-	/**
-	 * @param IConfig $config
-	 */
-	public function __construct(IConfig $config, IL10N $l, IManager $shareManager) {
+	/** @var IAppManager */
+	private $appManager;
+
+	public function __construct(IConfig $config, IL10N $l, IManager $shareManager, IAppManager $appManager) {
 		$this->config = $config;
 		$this->l = $l;
 		$this->shareManager = $shareManager;
+		$this->appManager = $appManager;
 	}
 
 	/**
@@ -72,6 +74,7 @@ class Sharing implements ISettings {
 
 		$parameters = [
 			// Built-In Sharing
+			'sharingAppEnabled' => $this->appManager->isEnabledForUser('files_sharing'),
 			'allowGroupSharing' => $this->config->getAppValue('core', 'shareapi_allow_group_sharing', 'yes'),
 			'allowLinks' => $this->config->getAppValue('core', 'shareapi_allow_links', 'yes'),
 			'allowLinksExcludeGroups' => $linksExcludeGroupsList,
diff --git a/apps/settings/templates/settings/admin/sharing.php b/apps/settings/templates/settings/admin/sharing.php
index 75ad6f76d23..62be48dc99d 100644
--- a/apps/settings/templates/settings/admin/sharing.php
+++ b/apps/settings/templates/settings/admin/sharing.php
@@ -3,6 +3,7 @@
  * @copyright Copyright (c) 2016 Arthur Schiwon <blizzz@arthur-schiwon.de>
  *
  * @author Arthur Schiwon <blizzz@arthur-schiwon.de>
+ * @author Thomas Citharel <nextcloud@tcit.fr>
  *
  * @license GNU AGPL version 3 or any later version
  *
@@ -28,234 +29,240 @@
 
 <div class="section" id="shareAPI">
 	<h2><?php p($l->t('Sharing'));?></h2>
-	<a target="_blank" rel="noreferrer noopener" class="icon-info"
-	   title="<?php p($l->t('Open documentation'));?>"
-	   href="<?php p(link_to_docs('admin-sharing')); ?>"></a>
-        <p class="settings-hint"><?php p($l->t('As admin you can fine-tune the sharing behavior. Please see the documentation for more information.'));?></p>
-	<p id="enable">
-		<input type="checkbox" name="shareapi_enabled" id="shareAPIEnabled" class="checkbox"
-			   value="1" <?php if ($_['shareAPIEnabled'] === 'yes') {
+	<?php if ($_['sharingAppEnabled'] === false) { ?>
+		<p class="warning"><?php p($l->t('You need to enable the File sharing App.')); ?></p>
+	<?php } else { ?>
+	<div>
+		<a target="_blank" rel="noreferrer noopener" class="icon-info"
+		   title="<?php p($l->t('Open documentation'));?>"
+		   href="<?php p(link_to_docs('admin-sharing')); ?>"></a>
+			<p class="settings-hint"><?php p($l->t('As admin you can fine-tune the sharing behavior. Please see the documentation for more information.'));?></p>
+		<p id="enable">
+			<input type="checkbox" name="shareapi_enabled" id="shareAPIEnabled" class="checkbox"
+				   value="1" <?php if ($_['shareAPIEnabled'] === 'yes') {
 	print_unescaped('checked="checked"');
 } ?> />
-		<label for="shareAPIEnabled"><?php p($l->t('Allow apps to use the Share API'));?></label><br/>
-	</p>
+			<label for="shareAPIEnabled"><?php p($l->t('Allow apps to use the Share API'));?></label><br/>
+		</p>
 
-	<p id="internalShareSettings" class="indent <?php if ($_['shareAPIEnabled'] === 'no') {
+		<p id="internalShareSettings" class="indent <?php if ($_['shareAPIEnabled'] === 'no') {
 	p('hidden');
 } ?>">
-		<input type="checkbox" name="shareapi_default_internal_expire_date" id="shareapiDefaultInternalExpireDate" class="checkbox"
-			   value="1" <?php if ($_['shareDefaultInternalExpireDateSet'] === 'yes') {
+			<input type="checkbox" name="shareapi_default_internal_expire_date" id="shareapiDefaultInternalExpireDate" class="checkbox"
+				   value="1" <?php if ($_['shareDefaultInternalExpireDateSet'] === 'yes') {
 	print_unescaped('checked="checked"');
 } ?> />
-		<label for="shareapiDefaultInternalExpireDate"><?php p($l->t('Set default expiration date for shares'));?></label><br/>
-	</p>
-	<p id="setDefaultInternalExpireDate" class="double-indent <?php if ($_['shareDefaultInternalExpireDateSet'] === 'no' || $_['shareAPIEnabled'] === 'no') {
+			<label for="shareapiDefaultInternalExpireDate"><?php p($l->t('Set default expiration date for shares'));?></label><br/>
+		</p>
+		<p id="setDefaultInternalExpireDate" class="double-indent <?php if ($_['shareDefaultInternalExpireDateSet'] === 'no' || $_['shareAPIEnabled'] === 'no') {
 	p('hidden');
 }?>">
-		<?php p($l->t('Expire after') . ' '); ?>
-		<input type="text" name='shareapi_internal_expire_after_n_days' id="shareapiInternalExpireAfterNDays" placeholder="<?php p('7')?>"
-			   value='<?php p($_['shareInternalExpireAfterNDays']) ?>' />
-		<?php p($l->t('day(s)')); ?>
-		<input type="checkbox" name="shareapi_enforce_internal_expire_date" id="shareapiInternalEnforceExpireDate" class="checkbox"
-			   value="1" <?php if ($_['shareInternalEnforceExpireDate'] === 'yes') {
+			<?php p($l->t('Expire after') . ' '); ?>
+			<input type="text" name='shareapi_internal_expire_after_n_days' id="shareapiInternalExpireAfterNDays" placeholder="<?php p('7')?>"
+				   value='<?php p($_['shareInternalExpireAfterNDays']) ?>' />
+			<?php p($l->t('day(s)')); ?>
+			<input type="checkbox" name="shareapi_enforce_internal_expire_date" id="shareapiInternalEnforceExpireDate" class="checkbox"
+				   value="1" <?php if ($_['shareInternalEnforceExpireDate'] === 'yes') {
 	print_unescaped('checked="checked"');
 } ?> />
-		<label for="shareapiInternalEnforceExpireDate"><?php p($l->t('Enforce expiration date'));?></label><br/>
-	</p>
+			<label for="shareapiInternalEnforceExpireDate"><?php p($l->t('Enforce expiration date'));?></label><br/>
+		</p>
 
-	<p id="remoteShareSettings" class="indent <?php if ($_['shareAPIEnabled'] === 'no') {
+		<p id="remoteShareSettings" class="indent <?php if ($_['shareAPIEnabled'] === 'no') {
 	p('hidden');
 } ?>">
-		<input type="checkbox" name="shareapi_default_remote_expire_date" id="shareapiDefaultRemoteExpireDate" class="checkbox"
-			   value="1" <?php if ($_['shareDefaultRemoteExpireDateSet'] === 'yes') {
+			<input type="checkbox" name="shareapi_default_remote_expire_date" id="shareapiDefaultRemoteExpireDate" class="checkbox"
+				   value="1" <?php if ($_['shareDefaultRemoteExpireDateSet'] === 'yes') {
 	print_unescaped('checked="checked"');
 } ?> />
-		<label for="shareapiDefaultRemoteExpireDate"><?php p($l->t('Set default expiration date for shares to other servers'));?></label><br/>
-	</p>
-	<p id="setDefaultRemoteExpireDate" class="double-indent <?php if ($_['shareDefaultRemoteExpireDateSet'] === 'no' || $_['shareAPIEnabled'] === 'no') {
+			<label for="shareapiDefaultRemoteExpireDate"><?php p($l->t('Set default expiration date for shares to other servers'));?></label><br/>
+		</p>
+		<p id="setDefaultRemoteExpireDate" class="double-indent <?php if ($_['shareDefaultRemoteExpireDateSet'] === 'no' || $_['shareAPIEnabled'] === 'no') {
 	p('hidden');
 }?>">
-		<?php p($l->t('Expire after'). ' '); ?>
-		<input type="text" name='shareapi_remote_expire_after_n_days' id="shareapiRemoteExpireAfterNDays" placeholder="<?php p('7')?>"
-			   value='<?php p($_['shareRemoteExpireAfterNDays']) ?>' />
-		<?php p($l->t('day(s)')); ?>
-		<input type="checkbox" name="shareapi_enforce_remote_expire_date" id="shareapiRemoteEnforceExpireDate" class="checkbox"
-			   value="1" <?php if ($_['shareRemoteEnforceExpireDate'] === 'yes') {
+			<?php p($l->t('Expire after'). ' '); ?>
+			<input type="text" name='shareapi_remote_expire_after_n_days' id="shareapiRemoteExpireAfterNDays" placeholder="<?php p('7')?>"
+				   value='<?php p($_['shareRemoteExpireAfterNDays']) ?>' />
+			<?php p($l->t('day(s)')); ?>
+			<input type="checkbox" name="shareapi_enforce_remote_expire_date" id="shareapiRemoteEnforceExpireDate" class="checkbox"
+				   value="1" <?php if ($_['shareRemoteEnforceExpireDate'] === 'yes') {
 	print_unescaped('checked="checked"');
 } ?> />
-		<label for="shareapiRemoteEnforceExpireDate"><?php p($l->t('Enforce expiration date'));?></label><br/>
-	</p>
+			<label for="shareapiRemoteEnforceExpireDate"><?php p($l->t('Enforce expiration date'));?></label><br/>
+		</p>
 
-	<p class="<?php if ($_['shareAPIEnabled'] === 'no') {
+		<p class="<?php if ($_['shareAPIEnabled'] === 'no') {
 	p('hidden');
 }?>">
-		<input type="checkbox" name="shareapi_allow_links" id="allowLinks" class="checkbox"
-			   value="1" <?php if ($_['allowLinks'] === 'yes') {
+			<input type="checkbox" name="shareapi_allow_links" id="allowLinks" class="checkbox"
+				   value="1" <?php if ($_['allowLinks'] === 'yes') {
 	print_unescaped('checked="checked"');
 } ?> />
-		<label for="allowLinks"><?php p($l->t('Allow users to share via link and emails'));?></label><br/>
-	</p>
+			<label for="allowLinks"><?php p($l->t('Allow users to share via link and emails'));?></label><br/>
+		</p>
 
-	<p id="publicLinkSettings" class="indent <?php if ($_['allowLinks'] !== 'yes' || $_['shareAPIEnabled'] === 'no') {
+		<p id="publicLinkSettings" class="indent <?php if ($_['allowLinks'] !== 'yes' || $_['shareAPIEnabled'] === 'no') {
 	p('hidden');
 } ?>">
-		<input type="checkbox" name="shareapi_allow_public_upload" id="allowPublicUpload" class="checkbox"
-			   value="1" <?php if ($_['allowPublicUpload'] == 'yes') {
+			<input type="checkbox" name="shareapi_allow_public_upload" id="allowPublicUpload" class="checkbox"
+				   value="1" <?php if ($_['allowPublicUpload'] == 'yes') {
 	print_unescaped('checked="checked"');
 } ?> />
-		<label for="allowPublicUpload"><?php p($l->t('Allow public uploads'));?></label><br/>
-		<input type="checkbox" name="shareapi_enable_link_password_by_default" id="enableLinkPasswordByDefault" class="checkbox"
-			   value="1" <?php if ($_['enableLinkPasswordByDefault'] === 'yes') {
+			<label for="allowPublicUpload"><?php p($l->t('Allow public uploads'));?></label><br/>
+			<input type="checkbox" name="shareapi_enable_link_password_by_default" id="enableLinkPasswordByDefault" class="checkbox"
+				   value="1" <?php if ($_['enableLinkPasswordByDefault'] === 'yes') {
 	print_unescaped('checked="checked"');
 } ?> />
-		<label for="enableLinkPasswordByDefault"><?php p($l->t('Always ask for a password'));?></label><br/>
-		<input type="checkbox" name="shareapi_enforce_links_password" id="enforceLinkPassword" class="checkbox"
-			   value="1" <?php if ($_['enforceLinkPassword']) {
+			<label for="enableLinkPasswordByDefault"><?php p($l->t('Always ask for a password'));?></label><br/>
+			<input type="checkbox" name="shareapi_enforce_links_password" id="enforceLinkPassword" class="checkbox"
+				   value="1" <?php if ($_['enforceLinkPassword']) {
 	print_unescaped('checked="checked"');
 } ?> />
-		<label for="enforceLinkPassword"><?php p($l->t('Enforce password protection'));?></label><br/>
+			<label for="enforceLinkPassword"><?php p($l->t('Enforce password protection'));?></label><br/>
 
-		<input type="checkbox" name="shareapi_default_expire_date" id="shareapiDefaultExpireDate" class="checkbox"
-			   value="1" <?php if ($_['shareDefaultExpireDateSet'] === 'yes') {
+			<input type="checkbox" name="shareapi_default_expire_date" id="shareapiDefaultExpireDate" class="checkbox"
+				   value="1" <?php if ($_['shareDefaultExpireDateSet'] === 'yes') {
 	print_unescaped('checked="checked"');
 } ?> />
-		<label for="shareapiDefaultExpireDate"><?php p($l->t('Set default expiration date'));?></label><br/>
+			<label for="shareapiDefaultExpireDate"><?php p($l->t('Set default expiration date'));?></label><br/>
 
-	</p>
-	<p id="setDefaultExpireDate" class="double-indent <?php if ($_['allowLinks'] !== 'yes' || $_['shareDefaultExpireDateSet'] === 'no' || $_['shareAPIEnabled'] === 'no') {
+		</p>
+		<p id="setDefaultExpireDate" class="double-indent <?php if ($_['allowLinks'] !== 'yes' || $_['shareDefaultExpireDateSet'] === 'no' || $_['shareAPIEnabled'] === 'no') {
 	p('hidden');
 }?>">
-		<?php p($l->t('Expire after'). ' '); ?>
-		<input type="text" name='shareapi_expire_after_n_days' id="shareapiExpireAfterNDays" placeholder="<?php p('7')?>"
-			   value='<?php p($_['shareExpireAfterNDays']) ?>' />
-		<?php p($l->t('day(s)')); ?>
-		<input type="checkbox" name="shareapi_enforce_expire_date" id="shareapiEnforceExpireDate" class="checkbox"
-			   value="1" <?php if ($_['shareEnforceExpireDate'] === 'yes') {
+			<?php p($l->t('Expire after'). ' '); ?>
+			<input type="text" name='shareapi_expire_after_n_days' id="shareapiExpireAfterNDays" placeholder="<?php p('7')?>"
+				   value='<?php p($_['shareExpireAfterNDays']) ?>' />
+			<?php p($l->t('day(s)')); ?>
+			<input type="checkbox" name="shareapi_enforce_expire_date" id="shareapiEnforceExpireDate" class="checkbox"
+				   value="1" <?php if ($_['shareEnforceExpireDate'] === 'yes') {
 	print_unescaped('checked="checked"');
 } ?> />
-		<label for="shareapiEnforceExpireDate"><?php p($l->t('Enforce expiration date'));?></label><br/>
-	</p>
-	<p class="<?php if ($_['shareAPIEnabled'] === 'no') {
+			<label for="shareapiEnforceExpireDate"><?php p($l->t('Enforce expiration date'));?></label><br/>
+		</p>
+		<p class="<?php if ($_['shareAPIEnabled'] === 'no') {
 	p('hidden');
 }?>">
-	<p class="indent">
-		<?php p($l->t('Exclude groups from creating link shares:'));?>
-	</p>
-	<p id="selectLinksExcludedGroups" class="indent <?php if ($_['allowLinks'] === 'no') {
+		<p class="indent">
+			<?php p($l->t('Exclude groups from creating link shares:'));?>
+		</p>
+		<p id="selectLinksExcludedGroups" class="indent <?php if ($_['allowLinks'] === 'no') {
 	p('hidden');
 } ?>">
-		<input name="shareapi_allow_links_exclude_groups" type="hidden" id="linksExcludedGroups" value="<?php p($_['allowLinksExcludeGroups']) ?>" style="width: 400px" class="noJSAutoUpdate"/>
-	</p>
-		<input type="checkbox" name="shareapi_allow_resharing" id="allowResharing" class="checkbox"
-			   value="1" <?php if ($_['allowResharing'] === 'yes') {
+			<input name="shareapi_allow_links_exclude_groups" type="hidden" id="linksExcludedGroups" value="<?php p($_['allowLinksExcludeGroups']) ?>" style="width: 400px" class="noJSAutoUpdate"/>
+		</p>
+			<input type="checkbox" name="shareapi_allow_resharing" id="allowResharing" class="checkbox"
+				   value="1" <?php if ($_['allowResharing'] === 'yes') {
 	print_unescaped('checked="checked"');
 } ?> />
-		<label for="allowResharing"><?php p($l->t('Allow resharing'));?></label><br/>
-	</p>
-	<p class="<?php if ($_['shareAPIEnabled'] === 'no') {
+			<label for="allowResharing"><?php p($l->t('Allow resharing'));?></label><br/>
+		</p>
+		<p class="<?php if ($_['shareAPIEnabled'] === 'no') {
 	p('hidden');
 }?>">
-		<input type="checkbox" name="shareapi_allow_group_sharing" id="allowGroupSharing" class="checkbox"
-			   value="1" <?php if ($_['allowGroupSharing'] === 'yes') {
+			<input type="checkbox" name="shareapi_allow_group_sharing" id="allowGroupSharing" class="checkbox"
+				   value="1" <?php if ($_['allowGroupSharing'] === 'yes') {
 	print_unescaped('checked="checked"');
 } ?> />
-		<label for="allowGroupSharing"><?php p($l->t('Allow sharing with groups'));?></label><br />
-	</p>
-	<p class="<?php if ($_['shareAPIEnabled'] === 'no') {
+			<label for="allowGroupSharing"><?php p($l->t('Allow sharing with groups'));?></label><br />
+		</p>
+		<p class="<?php if ($_['shareAPIEnabled'] === 'no') {
 	p('hidden');
 }?>">
-		<input type="checkbox" name="shareapi_only_share_with_group_members" id="onlyShareWithGroupMembers" class="checkbox"
-			   value="1" <?php if ($_['onlyShareWithGroupMembers']) {
+			<input type="checkbox" name="shareapi_only_share_with_group_members" id="onlyShareWithGroupMembers" class="checkbox"
+				   value="1" <?php if ($_['onlyShareWithGroupMembers']) {
 	print_unescaped('checked="checked"');
 } ?> />
-		<label for="onlyShareWithGroupMembers"><?php p($l->t('Restrict users to only share with users in their groups'));?></label><br/>
-	</p>
-	<p class="<?php if ($_['shareAPIEnabled'] === 'no') {
+			<label for="onlyShareWithGroupMembers"><?php p($l->t('Restrict users to only share with users in their groups'));?></label><br/>
+		</p>
+		<p class="<?php if ($_['shareAPIEnabled'] === 'no') {
 	p('hidden');
 }?>">
-		<input type="checkbox" name="shareapi_exclude_groups" id="shareapiExcludeGroups" class="checkbox"
-			   value="1" <?php if ($_['shareExcludeGroups']) {
+			<input type="checkbox" name="shareapi_exclude_groups" id="shareapiExcludeGroups" class="checkbox"
+				   value="1" <?php if ($_['shareExcludeGroups']) {
 	print_unescaped('checked="checked"');
 } ?> />
-		<label for="shareapiExcludeGroups"><?php p($l->t('Exclude groups from sharing'));?></label><br/>
-	</p>
-	<p id="selectExcludedGroups" class="indent <?php if (!$_['shareExcludeGroups'] || $_['shareAPIEnabled'] === 'no') {
+			<label for="shareapiExcludeGroups"><?php p($l->t('Exclude groups from sharing'));?></label><br/>
+		</p>
+		<p id="selectExcludedGroups" class="indent <?php if (!$_['shareExcludeGroups'] || $_['shareAPIEnabled'] === 'no') {
 	p('hidden');
 } ?>">
-		<input name="shareapi_exclude_groups_list" type="hidden" id="excludedGroups" value="<?php p($_['shareExcludedGroupsList']) ?>" style="width: 400px" class="noJSAutoUpdate"/>
-		<br />
-		 <em><?php p($l->t('These groups will still be able to receive shares, but not to initiate them.')); ?></em>
-	</p>
+			<input name="shareapi_exclude_groups_list" type="hidden" id="excludedGroups" value="<?php p($_['shareExcludedGroupsList']) ?>" style="width: 400px" class="noJSAutoUpdate"/>
+			<br />
+			 <em><?php p($l->t('These groups will still be able to receive shares, but not to initiate them.')); ?></em>
+		</p>
 
-	<p class="<?php if ($_['shareAPIEnabled'] === 'no') {
+		<p class="<?php if ($_['shareAPIEnabled'] === 'no') {
 	p('hidden');
 }?>">
-		<input type="checkbox" name="shareapi_allow_share_dialog_user_enumeration" value="1" id="shareapi_allow_share_dialog_user_enumeration" class="checkbox"
-			<?php if ($_['allowShareDialogUserEnumeration'] === 'yes') {
+			<input type="checkbox" name="shareapi_allow_share_dialog_user_enumeration" value="1" id="shareapi_allow_share_dialog_user_enumeration" class="checkbox"
+				<?php if ($_['allowShareDialogUserEnumeration'] === 'yes') {
 	print_unescaped('checked="checked"');
 } ?> />
-		<label for="shareapi_allow_share_dialog_user_enumeration"><?php p($l->t('Allow username autocompletion in share dialog'));?></label><br />
-	</p>
+			<label for="shareapi_allow_share_dialog_user_enumeration"><?php p($l->t('Allow username autocompletion in share dialog'));?></label><br />
+		</p>
 
-	<p id="shareapi_restrict_user_enumeration_to_group_setting" class="indent <?php if ($_['shareAPIEnabled'] === 'no' || $_['allowShareDialogUserEnumeration'] === 'no') {
+		<p id="shareapi_restrict_user_enumeration_to_group_setting" class="indent <?php if ($_['shareAPIEnabled'] === 'no' || $_['allowShareDialogUserEnumeration'] === 'no') {
 	p('hidden');
 }?>">
-		<input type="checkbox" name="shareapi_restrict_user_enumeration_to_group" value="1" id="shareapi_restrict_user_enumeration_to_group" class="checkbox"
-			<?php if ($_['restrictUserEnumerationToGroup'] === 'yes') {
+			<input type="checkbox" name="shareapi_restrict_user_enumeration_to_group" value="1" id="shareapi_restrict_user_enumeration_to_group" class="checkbox"
+				<?php if ($_['restrictUserEnumerationToGroup'] === 'yes') {
 	print_unescaped('checked="checked"');
 } ?> />
-		<label for="shareapi_restrict_user_enumeration_to_group"><?php p($l->t('Allow username autocompletion to users within the same groups'));?></label><br />
-	</p>
+			<label for="shareapi_restrict_user_enumeration_to_group"><?php p($l->t('Allow username autocompletion to users within the same groups'));?></label><br />
+		</p>
 
-	<p id="shareapi_restrict_user_enumeration_to_phone_setting" class="indent <?php if ($_['shareAPIEnabled'] === 'no' || $_['allowShareDialogUserEnumeration'] === 'no') {
+		<p id="shareapi_restrict_user_enumeration_to_phone_setting" class="indent <?php if ($_['shareAPIEnabled'] === 'no' || $_['allowShareDialogUserEnumeration'] === 'no') {
 	p('hidden');
 }?>">
-		<input type="checkbox" name="shareapi_restrict_user_enumeration_to_phone" value="1" id="shareapi_restrict_user_enumeration_to_phone" class="checkbox"
-			<?php if ($_['restrictUserEnumerationToPhone'] === 'yes') {
+			<input type="checkbox" name="shareapi_restrict_user_enumeration_to_phone" value="1" id="shareapi_restrict_user_enumeration_to_phone" class="checkbox"
+				<?php if ($_['restrictUserEnumerationToPhone'] === 'yes') {
 	print_unescaped('checked="checked"');
 } ?> />
-		<label for="shareapi_restrict_user_enumeration_to_phone"><?php p($l->t('Allow username autocompletion to users based on phone number integration'));?></label><br />
-	</p>
-	<p id="shareapi_restrict_user_enumeration_combinewarning_setting" class="indent <?php if ($_['shareAPIEnabled'] === 'no' || $_['allowShareDialogUserEnumeration'] === 'no') {
+			<label for="shareapi_restrict_user_enumeration_to_phone"><?php p($l->t('Allow username autocompletion to users based on phone number integration'));?></label><br />
+		</p>
+		<p id="shareapi_restrict_user_enumeration_combinewarning_setting" class="indent <?php if ($_['shareAPIEnabled'] === 'no' || $_['allowShareDialogUserEnumeration'] === 'no') {
 	p('hidden');
 }?>">
-		<em><?php p($l->t('If autocompletion "same group" and "phone number integration" are enabled a match in either is enough to show the user.'));?></em><br />
-	</p>
-	<p id="shareapi_restrict_user_enumeration_full_match_setting" class="indent <?php if ($_['shareAPIEnabled'] === 'no') {
+			<em><?php p($l->t('If autocompletion "same group" and "phone number integration" are enabled a match in either is enough to show the user.'));?></em><br />
+		</p>
+		<p id="shareapi_restrict_user_enumeration_full_match_setting" class="indent <?php if ($_['shareAPIEnabled'] === 'no') {
 	p('hidden');
 }?>">
-		<input type="checkbox" name="shareapi_restrict_user_enumeration_full_match" value="1" id="shareapi_restrict_user_enumeration_full_match" class="checkbox"
-				<?php if ($_['restrictUserEnumerationFullMatch'] === 'yes') {
+			<input type="checkbox" name="shareapi_restrict_user_enumeration_full_match" value="1" id="shareapi_restrict_user_enumeration_full_match" class="checkbox"
+					<?php if ($_['restrictUserEnumerationFullMatch'] === 'yes') {
 	print_unescaped('checked="checked"');
 } ?> />
-		<label for="shareapi_restrict_user_enumeration_full_match"><?php p($l->t('Allow username autocompletion when entering the full name or email address (ignoring missing phonebook match and being in the same group)'));?></label><br />
-	</p>
+			<label for="shareapi_restrict_user_enumeration_full_match"><?php p($l->t('Allow username autocompletion when entering the full name or email address (ignoring missing phonebook match and being in the same group)'));?></label><br />
+		</p>
 
-	<p>
-		<input type="checkbox" id="publicShareDisclaimer" class="checkbox noJSAutoUpdate"
-			<?php if ($_['publicShareDisclaimerText'] !== null) {
+		<p>
+			<input type="checkbox" id="publicShareDisclaimer" class="checkbox noJSAutoUpdate"
+				<?php if ($_['publicShareDisclaimerText'] !== null) {
 	print_unescaped('checked="checked"');
 } ?> />
-		<label for="publicShareDisclaimer"><?php p($l->t('Show disclaimer text on the public link upload page (only shown when the file list is hidden)'));?></label>
-		<span id="publicShareDisclaimerStatus" class="msg" style="display:none"></span>
-		<br/>
-		<textarea placeholder="<?php p($l->t('This text will be shown on the public link upload page when the file list is hidden.')) ?>" id="publicShareDisclaimerText" <?php if ($_['publicShareDisclaimerText'] === null) {
+			<label for="publicShareDisclaimer"><?php p($l->t('Show disclaimer text on the public link upload page (only shown when the file list is hidden)'));?></label>
+			<span id="publicShareDisclaimerStatus" class="msg" style="display:none"></span>
+			<br/>
+			<textarea placeholder="<?php p($l->t('This text will be shown on the public link upload page when the file list is hidden.')) ?>" id="publicShareDisclaimerText" <?php if ($_['publicShareDisclaimerText'] === null) {
 	print_unescaped('class="hidden"');
 } ?>><?php p($_['publicShareDisclaimerText']) ?></textarea>
-	</p>
+		</p>
 
-	<h3><?php p($l->t('Default share permissions'));?></h3>
-	<input type="hidden" name="shareapi_default_permissions" id="shareApiDefaultPermissions" class="checkbox"
-		   value="<?php p($_['shareApiDefaultPermissions']) ?>" />
-	<p id="shareApiDefaultPermissionsSection" class="indent <?php if ($_['shareAPIEnabled'] === 'no') {
+		<h3><?php p($l->t('Default share permissions'));?></h3>
+		<input type="hidden" name="shareapi_default_permissions" id="shareApiDefaultPermissions" class="checkbox"
+			   value="<?php p($_['shareApiDefaultPermissions']) ?>" />
+		<p id="shareApiDefaultPermissionsSection" class="indent <?php if ($_['shareAPIEnabled'] === 'no') {
 	p('hidden');
 } ?>">
-		<?php foreach ($_['shareApiDefaultPermissionsCheckboxes'] as $perm): ?>
-			<input type="checkbox" name="shareapi_default_permission_<?php p($perm['id']) ?>" id="shareapi_default_permission_<?php p($perm['id']) ?>"
-				   class="noautosave checkbox" value="<?php p($perm['value']) ?>" <?php if (($_['shareApiDefaultPermissions'] & $perm['value']) !== 0) {
+			<?php foreach ($_['shareApiDefaultPermissionsCheckboxes'] as $perm): ?>
+				<input type="checkbox" name="shareapi_default_permission_<?php p($perm['id']) ?>" id="shareapi_default_permission_<?php p($perm['id']) ?>"
+					   class="noautosave checkbox" value="<?php p($perm['value']) ?>" <?php if (($_['shareApiDefaultPermissions'] & $perm['value']) !== 0) {
 	print_unescaped('checked="checked"');
 } ?> />
-			<label for="shareapi_default_permission_<?php p($perm['id']) ?>"><?php p($perm['label']);?></label>
-		<?php endforeach ?>
-	</p>
+				<label for="shareapi_default_permission_<?php p($perm['id']) ?>"><?php p($perm['label']);?></label>
+			<?php endforeach ?>
+		</p>
+	</div>
+	<?php } ?>
 </div>
diff --git a/apps/settings/tests/Settings/Admin/SharingTest.php b/apps/settings/tests/Settings/Admin/SharingTest.php
index ff25c717498..c90429f6dd8 100644
--- a/apps/settings/tests/Settings/Admin/SharingTest.php
+++ b/apps/settings/tests/Settings/Admin/SharingTest.php
@@ -32,11 +32,13 @@
 namespace OCA\Settings\Tests\Settings\Admin;
 
 use OCA\Settings\Settings\Admin\Sharing;
+use OCP\App\IAppManager;
 use OCP\AppFramework\Http\TemplateResponse;
 use OCP\Constants;
 use OCP\IConfig;
 use OCP\IL10N;
 use OCP\Share\IManager;
+use PHPUnit\Framework\MockObject\MockObject;
 use Test\TestCase;
 
 class SharingTest extends TestCase {
@@ -44,10 +46,12 @@ class SharingTest extends TestCase {
 	private $admin;
 	/** @var IConfig */
 	private $config;
-	/** @var  IL10N|\PHPUnit\Framework\MockObject\MockObject */
+	/** @var  IL10N|MockObject */
 	private $l10n;
-	/** @var  IManager|\PHPUnit\Framework\MockObject\MockObject */
+	/** @var  IManager|MockObject */
 	private $shareManager;
+	/** @var IAppManager|MockObject */
+	private $appManager;
 
 	protected function setUp(): void {
 		parent::setUp();
@@ -55,15 +59,17 @@ class SharingTest extends TestCase {
 		$this->l10n = $this->getMockBuilder(IL10N::class)->getMock();
 
 		$this->shareManager = $this->getMockBuilder(IManager::class)->getMock();
+		$this->appManager = $this->getMockBuilder(IAppManager::class)->getMock();
 
 		$this->admin = new Sharing(
 			$this->config,
 			$this->l10n,
-			$this->shareManager
+			$this->shareManager,
+			$this->appManager
 		);
 	}
 
-	public function testGetFormWithoutExcludedGroups() {
+	public function testGetFormWithoutExcludedGroups(): void {
 		$this->config
 			->method('getAppValue')
 			->willReturnMap([
@@ -94,10 +100,13 @@ class SharingTest extends TestCase {
 		$this->shareManager->method('shareWithGroupMembersOnly')
 			->willReturn(false);
 
+		$this->appManager->method('isEnabledForUser')->with('files_sharing')->willReturn(false);
+
 		$expected = new TemplateResponse(
 			'settings',
 			'settings/admin/sharing',
 			[
+				'sharingAppEnabled' => false,
 				'allowGroupSharing' => 'yes',
 				'allowLinks' => 'yes',
 				'allowPublicUpload' => 'yes',
@@ -117,7 +126,7 @@ class SharingTest extends TestCase {
 				'publicShareDisclaimerText' => 'Lorem ipsum',
 				'enableLinkPasswordByDefault' => 'yes',
 				'shareApiDefaultPermissions' => Constants::PERMISSION_ALL,
-				'shareApiDefaultPermissionsCheckboxes' => $this->invokePrivate($this->admin, 'getSharePermissionList', []),
+				'shareApiDefaultPermissionsCheckboxes' => self::invokePrivate($this->admin, 'getSharePermissionList', []),
 				'shareDefaultInternalExpireDateSet' => 'no',
 				'shareInternalExpireAfterNDays' => '7',
 				'shareInternalEnforceExpireDate' => 'no',
@@ -132,7 +141,7 @@ class SharingTest extends TestCase {
 		$this->assertEquals($expected, $this->admin->getForm());
 	}
 
-	public function testGetFormWithExcludedGroups() {
+	public function testGetFormWithExcludedGroups(): void {
 		$this->config
 			->method('getAppValue')
 			->willReturnMap([
@@ -163,10 +172,13 @@ class SharingTest extends TestCase {
 		$this->shareManager->method('shareWithGroupMembersOnly')
 			->willReturn(false);
 
+		$this->appManager->method('isEnabledForUser')->with('files_sharing')->willReturn(true);
+
 		$expected = new TemplateResponse(
 			'settings',
 			'settings/admin/sharing',
 			[
+				'sharingAppEnabled' => true,
 				'allowGroupSharing' => 'yes',
 				'allowLinks' => 'yes',
 				'allowPublicUpload' => 'yes',
@@ -186,7 +198,7 @@ class SharingTest extends TestCase {
 				'publicShareDisclaimerText' => 'Lorem ipsum',
 				'enableLinkPasswordByDefault' => 'yes',
 				'shareApiDefaultPermissions' => Constants::PERMISSION_ALL,
-				'shareApiDefaultPermissionsCheckboxes' => $this->invokePrivate($this->admin, 'getSharePermissionList', []),
+				'shareApiDefaultPermissionsCheckboxes' => self::invokePrivate($this->admin, 'getSharePermissionList', []),
 				'shareDefaultInternalExpireDateSet' => 'no',
 				'shareInternalExpireAfterNDays' => '7',
 				'shareInternalEnforceExpireDate' => 'no',
@@ -201,11 +213,11 @@ class SharingTest extends TestCase {
 		$this->assertEquals($expected, $this->admin->getForm());
 	}
 
-	public function testGetSection() {
+	public function testGetSection(): void {
 		$this->assertSame('sharing', $this->admin->getSection());
 	}
 
-	public function testGetPriority() {
+	public function testGetPriority(): void {
 		$this->assertSame(0, $this->admin->getPriority());
 	}
 }