PLT-4990 (WebApp): Separate channel management permissions. (#4865)

2017-01-02 22:35:26 +00:00
--- a/webapp/components/admin_console/policy_settings.jsx
+++ b/webapp/components/admin_console/policy_settings.jsx
@@ -23,8 +23,12 @@ export default class PolicySettings extends AdminSettings {

    getConfigFromState(config) {
        config.TeamSettings.RestrictTeamInvite = this.state.restrictTeamInvite;
+        config.TeamSettings.RestrictPublicChannelCreation = this.state.restrictPublicChannelCreation;
+        config.TeamSettings.RestrictPrivateChannelCreation = this.state.restrictPrivateChannelCreation;
        config.TeamSettings.RestrictPublicChannelManagement = this.state.restrictPublicChannelManagement;
        config.TeamSettings.RestrictPrivateChannelManagement = this.state.restrictPrivateChannelManagement;
+        config.TeamSettings.RestrictPublicChannelDeletion = this.state.restrictPublicChannelDeletion;
+        config.TeamSettings.RestrictPrivateChannelDeletion = this.state.restrictPrivateChannelDeletion;

        return config;
    }
@@ -32,8 +36,12 @@ export default class PolicySettings extends AdminSettings {
    getStateFromConfig(config) {
        return {
            restrictTeamInvite: config.TeamSettings.RestrictTeamInvite,
+            restrictPublicChannelCreation: config.TeamSettings.RestrictPublicChannelCreation,
+            restrictPrivateChannelCreation: config.TeamSettings.RestrictPrivateChannelCreation,
            restrictPublicChannelManagement: config.TeamSettings.RestrictPublicChannelManagement,
-            restrictPrivateChannelManagement: config.TeamSettings.RestrictPrivateChannelManagement
+            restrictPrivateChannelManagement: config.TeamSettings.RestrictPrivateChannelManagement,
+            restrictPublicChannelDeletion: config.TeamSettings.RestrictPublicChannelDeletion,
+            restrictPrivateChannelDeletion: config.TeamSettings.RestrictPrivateChannelDeletion
        };
    }

@@ -74,46 +82,154 @@ export default class PolicySettings extends AdminSettings {
                    }
                />
                <DropdownSetting
-                    id='restrictPublicChannelManagement'
+                    id='restrictPublicChannelCreation'
                    values={[
                        {value: Constants.PERMISSIONS_ALL, text: Utils.localizeMessage('admin.general.policy.permissionsAll', 'All team members')},
                        {value: Constants.PERMISSIONS_TEAM_ADMIN, text: Utils.localizeMessage('admin.general.policy.permissionsAdmin', 'Team and System Admins')},
                        {value: Constants.PERMISSIONS_SYSTEM_ADMIN, text: Utils.localizeMessage('admin.general.policy.permissionsSystemAdmin', 'System Admins')}
                    ]}
+                    label={
+                        <FormattedMessage
+                            id='admin.general.policy.restrictPublicChannelCreationTitle'
+                            defaultMessage='Enable public channel creation for:'
+                        />
+                    }
+                    value={this.state.restrictPublicChannelCreation}
+                    onChange={this.handleChange}
+                    helpText={
+                        <FormattedMessage
+                            id='admin.general.policy.restrictPublicChannelCreationDescription'
+                            defaultMessage='Set policy on who can create public channels.'
+                        />
+                    }
+                />
+                <DropdownSetting
+                    id='restrictPublicChannelManagement'
+                    values={[
+                        {value: Constants.PERMISSIONS_ALL, text: Utils.localizeMessage('admin.general.policy.permissionsAllChannel', 'All channel members')},
+                        {value: Constants.PERMISSIONS_TEAM_ADMIN, text: Utils.localizeMessage('admin.general.policy.permissionsAdmin', 'Team and System Admins')},
+                        {value: Constants.PERMISSIONS_SYSTEM_ADMIN, text: Utils.localizeMessage('admin.general.policy.permissionsSystemAdmin', 'System Admins')}
+                    ]}
                    label={
                        <FormattedMessage
                            id='admin.general.policy.restrictPublicChannelManagementTitle'
-                            defaultMessage='Enable public channel management permissions for:'
+                            defaultMessage='Enable public channel renaming for:'
                        />
                    }
                    value={this.state.restrictPublicChannelManagement}
                    onChange={this.handleChange}
                    helpText={
-                        <FormattedHTMLMessage
+                        <FormattedMessage
                            id='admin.general.policy.restrictPublicChannelManagementDescription'
-                            defaultMessage='Set policy on who can create, delete, rename, and set the header or purpose for public channels.'
+                            defaultMessage='Set policy on who can rename and set the header or purpose for public channels.'
                        />
                    }
                />
                <DropdownSetting
-                    id='restrictPrivateChannelManagement'
+                    id='restrictPublicChannelDeletion'
+                    values={[
+                        {value: Constants.PERMISSIONS_ALL, text: Utils.localizeMessage('admin.general.policy.permissionsAllChannel', 'All channel members')},
+                        {value: Constants.PERMISSIONS_TEAM_ADMIN, text: Utils.localizeMessage('admin.general.policy.permissionsAdmin', 'Team and System Admins')},
+                        {value: Constants.PERMISSIONS_SYSTEM_ADMIN, text: Utils.localizeMessage('admin.general.policy.permissionsSystemAdmin', 'System Admins')}
+                    ]}
+                    label={
+                        <FormattedMessage
+                            id='admin.general.policy.restrictPublicChannelDeletionTitle'
+                            defaultMessage='Enable public channel deletion for:'
+                        />
+                    }
+                    value={this.state.restrictPublicChannelDeletion}
+                    onChange={this.handleChange}
+                    helpText={
+                        <FormattedMessage
+                            id='admin.general.policy.restrictPublicChannelDeletionDescription'
+                            defaultMessage='Set policy on who can delete public channels. Deleted channels can be recovered from the database using a {commandLineToolLink}.'
+                            values={{
+                                commandLineToolLink: (
+                                    <a href='https://docs.mattermost.com/administration/command-line-tools.html'>
+                                        <FormattedMessage
+                                            id='admin.general.policy.restrictPublicChannelDeletionCommandLineToolLink'
+                                            defaultMessage='command line tool'
+                                        />
+                                    </a>
+                                )
+                            }}
+                        />
+                    }
+                />
+                <DropdownSetting
+                    id='restrictPrivateChannelCreation'
                    values={[
                        {value: Constants.PERMISSIONS_ALL, text: Utils.localizeMessage('admin.general.policy.permissionsAll', 'All team members')},
                        {value: Constants.PERMISSIONS_TEAM_ADMIN, text: Utils.localizeMessage('admin.general.policy.permissionsAdmin', 'Team and System Admins')},
                        {value: Constants.PERMISSIONS_SYSTEM_ADMIN, text: Utils.localizeMessage('admin.general.policy.permissionsSystemAdmin', 'System Admins')}
                    ]}
+                    label={
+                        <FormattedMessage
+                            id='admin.general.policy.restrictPrivateChannelCreationTitle'
+                            defaultMessage='Enable private group creation for:'
+                        />
+                    }
+                    value={this.state.restrictPrivateChannelCreation}
+                    onChange={this.handleChange}
+                    helpText={
+                        <FormattedMessage
+                            id='admin.general.policy.restrictPrivateChannelCreationDescription'
+                            defaultMessage='Set policy on who can create private groups.'
+                        />
+                    }
+                />
+                <DropdownSetting
+                    id='restrictPrivateChannelManagement'
+                    values={[
+                        {value: Constants.PERMISSIONS_ALL, text: Utils.localizeMessage('admin.general.policy.permissionsAllChannel', 'All channel members')},
+                        {value: Constants.PERMISSIONS_TEAM_ADMIN, text: Utils.localizeMessage('admin.general.policy.permissionsAdmin', 'Team and System Admins')},
+                        {value: Constants.PERMISSIONS_SYSTEM_ADMIN, text: Utils.localizeMessage('admin.general.policy.permissionsSystemAdmin', 'System Admins')}
+                    ]}
                    label={
                        <FormattedMessage
                            id='admin.general.policy.restrictPrivateChannelManagementTitle'
-                            defaultMessage='Enable private group management permissions for:'
+                            defaultMessage='Enable private group renaming for:'
                        />
                    }
                    value={this.state.restrictPrivateChannelManagement}
                    onChange={this.handleChange}
                    helpText={
-                        <FormattedHTMLMessage
+                        <FormattedMessage
                            id='admin.general.policy.restrictPrivateChannelManagementDescription'
-                            defaultMessage='Set policy on who can create, delete, rename, and set the header or purpose for private groups.'
+                            defaultMessage='Set policy on who can rename and set the header or purpose for private groups.'
+                        />
+                    }
+                />
+                <DropdownSetting
+                    id='restrictPrivateChannelDeletion'
+                    values={[
+                        {value: Constants.PERMISSIONS_ALL, text: Utils.localizeMessage('admin.general.policy.permissionsAllChannel', 'All channel members')},
+                        {value: Constants.PERMISSIONS_TEAM_ADMIN, text: Utils.localizeMessage('admin.general.policy.permissionsAdmin', 'Team and System Admins')},
+                        {value: Constants.PERMISSIONS_SYSTEM_ADMIN, text: Utils.localizeMessage('admin.general.policy.permissionsSystemAdmin', 'System Admins')}
+                    ]}
+                    label={
+                        <FormattedMessage
+                            id='admin.general.policy.restrictPrivateChannelDeletionTitle'
+                            defaultMessage='Enable private group deletion for:'
+                        />
+                    }
+                    value={this.state.restrictPrivateChannelDeletion}
+                    onChange={this.handleChange}
+                    helpText={
+                        <FormattedMessage
+                            id='admin.general.policy.restrictPrivateChannelDeletionDescription'
+                            defaultMessage='Set policy on who can delete private groups. Deleted groups can be recovered from the database using a {commandLineToolLink}.'
+                            values={{
+                                commandLineToolLink: (
+                                    <a href='https://docs.mattermost.com/administration/command-line-tools.html'>
+                                        <FormattedMessage
+                                            id='admin.general.policy.restrictPrivateChannelDeletionCommandLineToolLink'
+                                            defaultMessage='command line tool'
+                                        />
+                                    </a>
+                                )
+                            }}
                        />
                    }
                />
--- a/webapp/components/channel_header.jsx
+++ b/webapp/components/channel_header.jsx
@@ -206,30 +206,6 @@ export default class ChannelHeader extends React.Component {
        });
    }

-    showManagementOptions(channel, isAdmin, isSystemAdmin) {
-        if (global.window.mm_license.IsLicensed !== 'true') {
-            return true;
-        }
-
-        if (channel.type === Constants.OPEN_CHANNEL) {
-            if (global.window.mm_config.RestrictPublicChannelManagement === Constants.PERMISSIONS_SYSTEM_ADMIN && !isSystemAdmin) {
-                return false;
-            }
-            if (global.window.mm_config.RestrictPublicChannelManagement === Constants.PERMISSIONS_TEAM_ADMIN && !isAdmin) {
-                return false;
-            }
-        } else if (channel.type === Constants.PRIVATE_CHANNEL) {
-            if (global.window.mm_config.RestrictPrivateChannelManagement === Constants.PERMISSIONS_SYSTEM_ADMIN && !isSystemAdmin) {
-                return false;
-            }
-            if (global.window.mm_config.RestrictPrivateChannelManagement === Constants.PERMISSIONS_TEAM_ADMIN && !isAdmin) {
-                return false;
-            }
-        }
-
-        return true;
-    }
-
    initWebrtc(contactId, isOnline) {
        if (isOnline && !this.state.isBusy) {
            GlobalActions.emitCloseRightHandSide();
@@ -521,7 +497,7 @@ export default class ChannelHeader extends React.Component {
                </li>
            );

-            if (this.showManagementOptions(channel, isAdmin, isSystemAdmin)) {
+            if (ChannelUtils.showManagementOptions(channel, isAdmin, isSystemAdmin)) {
                dropdownContents.push(
                    <li
                        key='set_channel_header'
@@ -584,7 +560,9 @@ export default class ChannelHeader extends React.Component {
                        </a>
                    </li>
                );
+            }

+            if (ChannelUtils.showDeleteOption(channel, isAdmin, isSystemAdmin)) {
                if (!ChannelStore.isDefault(channel)) {
                    dropdownContents.push(deleteOption);
                }
--- a/webapp/components/more_channels.jsx
+++ b/webapp/components/more_channels.jsx
@@ -9,6 +9,7 @@ import TeamStore from 'stores/team_store.jsx';

 import Constants from 'utils/constants.jsx';
 import * as AsyncClient from 'utils/async_client.jsx';
+import * as ChannelUtils from 'utils/channel_utils.jsx';
 import {joinChannel, searchMoreChannels} from 'actions/channel_actions.jsx';

 import React from 'react';
@@ -151,14 +152,9 @@ export default class MoreChannels extends React.Component {
        const isAdmin = TeamStore.isTeamAdminForCurrentTeam() || UserStore.isSystemAdminForCurrentUser();
        const isSystemAdmin = UserStore.isSystemAdminForCurrentUser();

-        if (global.window.mm_license.IsLicensed === 'true') {
-            if (global.window.mm_config.RestrictPublicChannelManagement === Constants.PERMISSIONS_SYSTEM_ADMIN && !isSystemAdmin) {
-                createNewChannelButton = null;
-                createChannelHelpText = null;
-            } else if (global.window.mm_config.RestrictPublicChannelManagement === Constants.PERMISSIONS_TEAM_ADMIN && !isAdmin) {
-                createNewChannelButton = null;
-                createChannelHelpText = null;
-            }
+        if (!ChannelUtils.showCreateOption(Constants.OPEN_CHANNEL, isAdmin, isSystemAdmin)) {
+            createNewChannelButton = null;
+            createChannelHelpText = null;
        }

        return (
--- a/webapp/components/navbar.jsx
+++ b/webapp/components/navbar.jsx
@@ -222,30 +222,6 @@ export default class Navbar extends React.Component {
        });
    }

-    showManagementOptions(channel, isAdmin, isSystemAdmin) {
-        if (global.window.mm_license.IsLicensed !== 'true') {
-            return true;
-        }
-
-        if (channel.type === Constants.OPEN_CHANNEL) {
-            if (global.window.mm_config.RestrictPublicChannelManagement === Constants.PERMISSIONS_SYSTEM_ADMIN && !isSystemAdmin) {
-                return false;
-            }
-            if (global.window.mm_config.RestrictPublicChannelManagement === Constants.PERMISSIONS_TEAM_ADMIN && !isAdmin) {
-                return false;
-            }
-        } else if (channel.type === Constants.PRIVATE_CHANNEL) {
-            if (global.window.mm_config.RestrictPrivateChannelManagement === Constants.PERMISSIONS_SYSTEM_ADMIN && !isSystemAdmin) {
-                return false;
-            }
-            if (global.window.mm_config.RestrictPrivateChannelManagement === Constants.PERMISSIONS_TEAM_ADMIN && !isAdmin) {
-                return false;
-            }
-        }
-
-        return true;
-    }
-
    toggleFavorite = (e) => {
        e.preventDefault();

@@ -388,7 +364,7 @@ export default class Navbar extends React.Component {
                    </li>
                );

-                if (this.showManagementOptions(channel, isAdmin, isSystemAdmin)) {
+                if (ChannelUtils.showManagementOptions(channel, isAdmin, isSystemAdmin)) {
                    setChannelHeaderOption = (
                        <li role='presentation'>
                            <a
@@ -444,7 +420,7 @@ export default class Navbar extends React.Component {
                    );
                }

-                if (this.showManagementOptions(channel, isAdmin, isSystemAdmin) || this.state.userCount === 1) {
+                if (ChannelUtils.showDeleteOption(channel, isAdmin, isSystemAdmin) || this.state.userCount === 1) {
                    if (!ChannelStore.isDefault(channel)) {
                        deleteChannelOption = (
                            <li role='presentation'>
--- a/webapp/components/new_channel_modal.jsx
+++ b/webapp/components/new_channel_modal.jsx
@@ -6,6 +6,7 @@ import ReactDOM from 'react-dom';

 import * as UserAgent from 'utils/user_agent.jsx';
 import * as Utils from 'utils/utils.jsx';
+import * as ChannelUtils from 'utils/channel_utils.jsx';
 import Constants from 'utils/constants.jsx';

 import UserStore from 'stores/user_store.jsx';
@@ -141,18 +142,12 @@ export default class NewChannelModal extends React.Component {
        const isAdmin = TeamStore.isTeamAdminForCurrentTeam() || UserStore.isSystemAdminForCurrentUser();
        const isSystemAdmin = UserStore.isSystemAdminForCurrentUser();

-        if (global.window.mm_license.IsLicensed === 'true') {
-            if (global.window.mm_config.RestrictPublicChannelManagement === Constants.PERMISSIONS_SYSTEM_ADMIN && !isSystemAdmin) {
-                createPublicChannelLink = null;
-            } else if (global.window.mm_config.RestrictPublicChannelManagement === Constants.PERMISSIONS_TEAM_ADMIN && !isAdmin) {
-                createPublicChannelLink = null;
-            }
+        if (!ChannelUtils.showCreateOption(Constants.OPEN_CHANNEL, isAdmin, isSystemAdmin)) {
+            createPublicChannelLink = null;
+        }

-            if (global.window.mm_config.RestrictPrivateChannelManagement === Constants.PERMISSIONS_SYSTEM_ADMIN && !isSystemAdmin) {
-                createPrivateChannelLink = null;
-            } else if (global.window.mm_config.RestrictPrivateChannelManagement === Constants.PERMISSIONS_TEAM_ADMIN && !isAdmin) {
-                createPrivateChannelLink = null;
-            }
+        if (!ChannelUtils.showCreateOption(Constants.PRIVATE_CHANNEL, isAdmin, isSystemAdmin)) {
+            createPrivateChannelLink = null;
        }

        var channelTerm = '';
--- a/webapp/components/sidebar.jsx
+++ b/webapp/components/sidebar.jsx
@@ -722,18 +722,12 @@ export default class Sidebar extends React.Component {
            </OverlayTrigger>
        );

-        if (global.window.mm_license.IsLicensed === 'true') {
-            if (global.window.mm_config.RestrictPublicChannelManagement === Constants.PERMISSIONS_SYSTEM_ADMIN && !isSystemAdmin) {
-                createPublicChannelIcon = null;
-            } else if (global.window.mm_config.RestrictPublicChannelManagement === Constants.PERMISSIONS_TEAM_ADMIN && !isAdmin) {
-                createPublicChannelIcon = null;
-            }
+        if (!ChannelUtils.showCreateOption(Constants.OPEN_CHANNEL, isAdmin, isSystemAdmin)) {
+            createPublicChannelIcon = null;
+        }

-            if (global.window.mm_config.RestrictPrivateChannelManagement === Constants.PERMISSIONS_SYSTEM_ADMIN && !isSystemAdmin) {
-                createPrivateChannelIcon = null;
-            } else if (global.window.mm_config.RestrictPrivateChannelManagement === Constants.PERMISSIONS_TEAM_ADMIN && !isAdmin) {
-                createPrivateChannelIcon = null;
-            }
+        if (!ChannelUtils.showCreateOption(Constants.PRIVATE_CHANNEL, isAdmin, isSystemAdmin)) {
+            createPrivateChannelIcon = null;
        }

        let moreDirectChannelsModal;
--- a/webapp/i18n/en.json
+++ b/webapp/i18n/en.json
@@ -310,11 +310,22 @@
  "admin.general.policy": "Policy",
  "admin.general.policy.permissionsAdmin": "Team and System Admins",
  "admin.general.policy.permissionsAll": "All team members",
+  "admin.general.policy.permissionsAllChannel": "All channel members",
  "admin.general.policy.permissionsSystemAdmin": "System Admins",
-  "admin.general.policy.restrictPrivateChannelManagementDescription": "Set policy on who can create, delete, rename, and set the header or purpose for private groups.",
-  "admin.general.policy.restrictPrivateChannelManagementTitle": "Enable private group management permissions for:",
-  "admin.general.policy.restrictPublicChannelManagementDescription": "Set policy on who can create, delete, rename, and set the header or purpose for public channels.",
-  "admin.general.policy.restrictPublicChannelManagementTitle": "Enable public channel management permissions for:",
+  "admin.general.policy.restrictPublicChannelCreationTitle": "Enable public channel creation for:",
+  "admin.general.policy.restrictPublicChannelCreationDescription": "Set policy on who can create public channels.",
+  "admin.general.policy.restrictPublicChannelManagementTitle": "Enable public channel renaming for:",
+  "admin.general.policy.restrictPublicChannelManagementDescription": "Set policy on who can rename and set the header or purpose for public channels.",
+  "admin.general.policy.restrictPublicChannelDeletionTitle": "Enable public channel deletion for:",
+  "admin.general.policy.restrictPublicChannelDeletionDescription": "Set policy on who can delete public channels. Deleted channels can be recovered from the database using a {commandLineToolLink}.",
+  "admin.general.policy.restrictPublicChannelDeletionCommandLineToolLink": "command line tool",
+  "admin.general.policy.restrictPrivateChannelCreationTitle": "Enable private group creation for:",
+  "admin.general.policy.restrictPrivateChannelCreationDescription": "Set policy on who can create private groups.",
+  "admin.general.policy.restrictPrivateChannelManagementTitle": "Enable private group renaming for:",
+  "admin.general.policy.restrictPrivateChannelManagementDescription": "Set policy on who can rename and set the header or purpose for private groups.",
+  "admin.general.policy.restrictPrivateChannelDeletionTitle": "Enable private group deletion for:",
+  "admin.general.policy.restrictPrivateChannelDeletionDescription": "Set policy on who can delete private groups. Deleted groups can be recovered from the database using a {commandLineToolLink}.",
+  "admin.general.policy.restrictPrivateChannelDeletionCommandLineToolLink": "command line tool",
  "admin.general.policy.teamInviteDescription": "Set policy on who can invite others to a team using <b>Invite New Member</b> to invite new users by email, or the <b>Get Team Invite Link</b> options from the Main Menu. If <b>Get Team Invite Link</b> is used to share a link, you can expire the invite code from <b>Team Settings</b> > <b>Invite Code</b> after the desired users join the team.",
  "admin.general.policy.teamInviteTitle": "Enable sending team invites from:",
  "admin.general.privacy": "Privacy",
--- a/webapp/utils/channel_utils.jsx
+++ b/webapp/utils/channel_utils.jsx
@@ -82,6 +82,76 @@ export function sortChannelsByDisplayName(a, b) {
    return buildDisplayNameAndTypeComparable(a).localeCompare(buildDisplayNameAndTypeComparable(b), locale, {numeric: true});
 }

+export function showCreateOption(channelType, isAdmin, isSystemAdmin) {
+    if (global.window.mm_license.IsLicensed !== 'true') {
+        return true;
+    }
+
+    if (channelType === Constants.OPEN_CHANNEL) {
+        if (global.window.mm_config.RestrictPublicChannelCreation === Constants.PERMISSIONS_SYSTEM_ADMIN && !isSystemAdmin) {
+            return false;
+        } else if (global.window.mm_config.RestrictPublicChannelCreation === Constants.PERMISSIONS_TEAM_ADMIN && !isAdmin) {
+            return false;
+        }
+    } else if (channelType === Constants.PRIVATE_CHANNEL) {
+        if (global.window.mm_config.RestrictPrivateChannelCreation === Constants.PERMISSIONS_SYSTEM_ADMIN && !isSystemAdmin) {
+            return false;
+        } else if (global.window.mm_config.RestrictPrivateChannelCreation === Constants.PERMISSIONS_TEAM_ADMIN && !isAdmin) {
+            return false;
+        }
+    }
+
+    return true;
+}
+
+export function showManagementOptions(channel, isAdmin, isSystemAdmin) {
+    if (global.window.mm_license.IsLicensed !== 'true') {
+        return true;
+    }
+
+    if (channel.type === Constants.OPEN_CHANNEL) {
+        if (global.window.mm_config.RestrictPublicChannelManagement === Constants.PERMISSIONS_SYSTEM_ADMIN && !isSystemAdmin) {
+            return false;
+        }
+        if (global.window.mm_config.RestrictPublicChannelManagement === Constants.PERMISSIONS_TEAM_ADMIN && !isAdmin) {
+            return false;
+        }
+    } else if (channel.type === Constants.PRIVATE_CHANNEL) {
+        if (global.window.mm_config.RestrictPrivateChannelManagement === Constants.PERMISSIONS_SYSTEM_ADMIN && !isSystemAdmin) {
+            return false;
+        }
+        if (global.window.mm_config.RestrictPrivateChannelManagement === Constants.PERMISSIONS_TEAM_ADMIN && !isAdmin) {
+            return false;
+        }
+    }
+
+    return true;
+}
+
+export function showDeleteOption(channel, isAdmin, isSystemAdmin) {
+    if (global.window.mm_license.IsLicensed !== 'true') {
+        return true;
+    }
+
+    if (channel.type === Constants.OPEN_CHANNEL) {
+        if (global.window.mm_config.RestrictPublicChannelDeletion === Constants.PERMISSIONS_SYSTEM_ADMIN && !isSystemAdmin) {
+            return false;
+        }
+        if (global.window.mm_config.RestrictPublicChannelDeletion === Constants.PERMISSIONS_TEAM_ADMIN && !isAdmin) {
+            return false;
+        }
+    } else if (channel.type === Constants.PRIVATE_CHANNEL) {
+        if (global.window.mm_config.RestrictPrivateChannelDeletion === Constants.PERMISSIONS_SYSTEM_ADMIN && !isSystemAdmin) {
+            return false;
+        }
+        if (global.window.mm_config.RestrictPrivateChannelDeletion === Constants.PERMISSIONS_TEAM_ADMIN && !isAdmin) {
+            return false;
+        }
+    }
+
+    return true;
+}
+
 /*
 * not exported helpers
 */