Message Editing and Deleting permissions (#4692)

11 files changed, 325 insertions, 23 deletions

diff --git a/webapp/components/admin_console/policy_settings.jsx b/webapp/components/admin_console/policy_settings.jsx
index 0e224af73..391726a93 100644
--- a/webapp/components/admin_console/policy_settings.jsx
+++ b/webapp/components/admin_console/policy_settings.jsx
@@ -6,6 +6,8 @@ import React from 'react';
 import AdminSettings from './admin_settings.jsx';
 import SettingsGroup from './settings_group.jsx';
 import DropdownSetting from './dropdown_setting.jsx';
+import RadioSetting from './radio_setting.jsx';
+import PostEditSetting from './post_edit_setting.jsx';
 
 import Constants from 'utils/constants.jsx';
 import * as Utils from 'utils/utils.jsx';
@@ -22,6 +24,9 @@ export default class PolicySettings extends AdminSettings {
     }
 
     getConfigFromState(config) {
+        config.ServiceSettings.RestrictPostDelete = this.state.restrictPostDelete;
+        config.ServiceSettings.AllowEditPost = this.state.allowEditPost;
+        config.ServiceSettings.PostEditTimeLimit = this.parseIntNonZero(this.state.postEditTimeLimit, Constants.DEFAULT_POST_EDIT_TIME_LIMIT);
         config.TeamSettings.RestrictTeamInvite = this.state.restrictTeamInvite;
         config.TeamSettings.RestrictPublicChannelCreation = this.state.restrictPublicChannelCreation;
         config.TeamSettings.RestrictPrivateChannelCreation = this.state.restrictPrivateChannelCreation;
@@ -35,6 +40,9 @@ export default class PolicySettings extends AdminSettings {
 
     getStateFromConfig(config) {
         return {
+            restrictPostDelete: config.ServiceSettings.RestrictPostDelete,
+            allowEditPost: config.ServiceSettings.AllowEditPost,
+            postEditTimeLimit: config.ServiceSettings.PostEditTimeLimit,
             restrictTeamInvite: config.TeamSettings.RestrictTeamInvite,
             restrictPublicChannelCreation: config.TeamSettings.RestrictPublicChannelCreation,
             restrictPrivateChannelCreation: config.TeamSettings.RestrictPrivateChannelCreation,
@@ -241,6 +249,47 @@ export default class PolicySettings extends AdminSettings {
                         />
                     }
                 />
+                <RadioSetting
+                    id='restrictPostDelete'
+                    values={[
+                        {value: Constants.PERMISSIONS_DELETE_POST_ALL, text: Utils.localizeMessage('admin.general.policy.permissionsDeletePostAll', 'Message authors can delete their own messages, and Administrators can delete any message')},
+                        {value: Constants.PERMISSIONS_DELETE_POST_TEAM_ADMIN, text: Utils.localizeMessage('admin.general.policy.permissionsDeletePostAdmin', 'Team Admins and System Admins')},
+                        {value: Constants.PERMISSIONS_DELETE_POST_SYSTEM_ADMIN, text: Utils.localizeMessage('admin.general.policy.permissionsDeletePostSystemAdmin', 'System Admins')}
+                    ]}
+                    label={
+                        <FormattedMessage
+                            id='admin.general.policy.restrictPostDeleteTitle'
+                            defaultMessage='Allow which users to delete messages:'
+                        />
+                    }
+                    value={this.state.restrictPostDelete}
+                    onChange={this.handleChange}
+                    helpText={
+                        <FormattedHTMLMessage
+                            id='admin.general.policy.restrictPostDeleteDescription'
+                            defaultMessage='Set policy on who has permission to delete messages.'
+                        />
+                    }
+                />
+                <PostEditSetting
+                    id='allowEditPost'
+                    timeLimitId='postEditTimeLimit'
+                    label={
+                        <FormattedMessage
+                            id='admin.general.policy.allowEditPostTitle'
+                            defaultMessage='Allow users to edit their messages:'
+                        />
+                    }
+                    value={this.state.allowEditPost}
+                    timeLimitValue={this.state.postEditTimeLimit}
+                    onChange={this.handleChange}
+                    helpText={
+                        <FormattedHTMLMessage
+                            id='admin.general.policy.allowEditPostDescription'
+                            defaultMessage='Set policy on the length of time authors have to edit their messages after posting.'
+                        />
+                    }
+                />
             </SettingsGroup>
         );
     }
diff --git a/webapp/components/admin_console/post_edit_setting.jsx b/webapp/components/admin_console/post_edit_setting.jsx
new file mode 100644
index 000000000..282a1b6c5
--- /dev/null
+++ b/webapp/components/admin_console/post_edit_setting.jsx
@@ -0,0 +1,99 @@
+// Copyright (c) 2016 Mattermost, Inc. All Rights Reserved.
+// See License.txt for license information.
+
+import React from 'react';
+
+import Setting from './setting.jsx';
+
+import Constants from 'utils/constants.jsx';
+import * as Utils from 'utils/utils.jsx';
+
+export default class PostEditSetting extends React.Component {
+    constructor(props) {
+        super(props);
+
+        this.handleChange = this.handleChange.bind(this);
+        this.handleTimeLimitChange = this.handleTimeLimitChange.bind(this);
+    }
+
+    handleChange(e) {
+        this.props.onChange(this.props.id, e.target.value);
+    }
+
+    handleTimeLimitChange(e) {
+        this.props.onChange(this.props.timeLimitId, e.target.value);
+    }
+
+    render() {
+        return (
+            <Setting
+                label={this.props.label}
+                inputId={this.props.id}
+                helpText={this.props.helpText}
+            >
+                <div className='radio'>
+                    <label>
+                        <input
+                            type='radio'
+                            value={Constants.ALLOW_EDIT_POST_ALWAYS}
+                            name={this.props.id}
+                            checked={this.props.value === Constants.ALLOW_EDIT_POST_ALWAYS}
+                            onChange={this.handleChange}
+                            disabled={this.props.disabled}
+                        />
+                        {Utils.localizeMessage('admin.general.policy.allowEditPostAlways', 'Any time')}
+                    </label>
+                </div>
+                <div className='radio'>
+                    <label>
+                        <input
+                            type='radio'
+                            value={Constants.ALLOW_EDIT_POST_NEVER}
+                            name={this.props.id}
+                            checked={this.props.value === Constants.ALLOW_EDIT_POST_NEVER}
+                            onChange={this.handleChange}
+                            disabled={this.props.disabled}
+                        />
+                        {Utils.localizeMessage('admin.general.policy.allowEditPostNever', 'Never')}
+                    </label>
+                </div>
+                <div className='radio form-inline'>
+                    <label>
+                        <input
+                            type='radio'
+                            value={Constants.ALLOW_EDIT_POST_TIME_LIMIT}
+                            name={this.props.id}
+                            checked={this.props.value === Constants.ALLOW_EDIT_POST_TIME_LIMIT}
+                            onChange={this.handleChange}
+                            disabled={this.props.disabled}
+                        />
+                        <input
+                            type='text'
+                            value={this.props.timeLimitValue}
+                            className='form-control'
+                            name={this.props.timeLimitId}
+                            onChange={this.handleTimeLimitChange}
+                            disabled={this.props.disabled || this.props.value !== Constants.ALLOW_EDIT_POST_TIME_LIMIT}
+                        />
+                        <span> {Utils.localizeMessage('admin.general.policy.allowEditPostTimeLimit', 'seconds after posting')}</span>
+                    </label>
+                </div>
+            </Setting>
+        );
+    }
+}
+
+PostEditSetting.defaultProps = {
+    isDisabled: false
+};
+
+PostEditSetting.propTypes = {
+    id: React.PropTypes.string.isRequired,
+    timeLimitId: React.PropTypes.string.isRequired,
+    label: React.PropTypes.node.isRequired,
+    value: React.PropTypes.string.isRequired,
+    timeLimitValue: React.PropTypes.number.isRequired,
+    onChange: React.PropTypes.func.isRequired,
+    disabled: React.PropTypes.bool,
+    helpText: React.PropTypes.node
+};
diff --git a/webapp/components/admin_console/radio_setting.jsx b/webapp/components/admin_console/radio_setting.jsx
new file mode 100644
index 000000000..dd45a5a26
--- /dev/null
+++ b/webapp/components/admin_console/radio_setting.jsx
@@ -0,0 +1,63 @@
+// Copyright (c) 2016 Mattermost, Inc. All Rights Reserved.
+// See License.txt for license information.
+
+import React from 'react';
+
+import Setting from './setting.jsx';
+
+export default class RadioSetting extends React.Component {
+    constructor(props) {
+        super(props);
+
+        this.handleChange = this.handleChange.bind(this);
+    }
+
+    handleChange(e) {
+        this.props.onChange(this.props.id, e.target.value);
+    }
+
+    render() {
+        const options = [];
+        for (const {value, text} of this.props.values) {
+            options.push(
+                <div className='radio'>
+                    <label>
+                        <input
+                            type='radio'
+                            value={value}
+                            name={this.props.id}
+                            checked={value === this.props.value}
+                            onChange={this.handleChange}
+                            disabled={this.props.disabled}
+                        />
+                        {text}
+                    </label>
+                </div>
+            );
+        }
+
+        return (
+            <Setting
+                label={this.props.label}
+                inputId={this.props.id}
+                helpText={this.props.helpText}
+            >
+                {options}
+            </Setting>
+        );
+    }
+}
+
+RadioSetting.defaultProps = {
+    isDisabled: false
+};
+
+RadioSetting.propTypes = {
+    id: React.PropTypes.string.isRequired,
+    values: React.PropTypes.array.isRequired,
+    label: React.PropTypes.node.isRequired,
+    value: React.PropTypes.string.isRequired,
+    onChange: React.PropTypes.func.isRequired,
+    disabled: React.PropTypes.bool,
+    helpText: React.PropTypes.node
+};
diff --git a/webapp/components/edit_post_modal.jsx b/webapp/components/edit_post_modal.jsx
index 55bf5fe60..7c1747ef7 100644
--- a/webapp/components/edit_post_modal.jsx
+++ b/webapp/components/edit_post_modal.jsx
@@ -118,6 +118,17 @@ export default class EditPostModal extends React.Component {
     }
 
     handleEditPostEvent(options) {
+        var post = PostStore.getPost(options.channelId, options.postId);
+        if (global.window.mm_license.IsLicensed === 'true') {
+            if (global.window.mm_config.AllowEditPost === Constants.ALLOW_EDIT_POST_NEVER) {
+                return;
+            }
+            if (global.window.mm_config.AllowEditPost === Constants.ALLOW_EDIT_POST_TIME_LIMIT) {
+                if ((post.create_at + (global.window.mm_config.PostEditTimeLimit * 1000)) < Utils.getTimestamp()) {
+                    return;
+                }
+            }
+        }
         this.setState({
             editText: options.message || '',
             originalText: options.message || '',
diff --git a/webapp/components/post_view/components/post_info.jsx b/webapp/components/post_view/components/post_info.jsx
index aa204add1..c4de46e8f 100644
--- a/webapp/components/post_view/components/post_info.jsx
+++ b/webapp/components/post_view/components/post_info.jsx
@@ -8,12 +8,10 @@ import PostTime from './post_time.jsx';
 import * as GlobalActions from 'actions/global_actions.jsx';
 import * as PostActions from 'actions/post_actions.jsx';
 
-import TeamStore from 'stores/team_store.jsx';
-import UserStore from 'stores/user_store.jsx';
-
 import * as Utils from 'utils/utils.jsx';
 import * as PostUtils from 'utils/post_utils.jsx';
 import Constants from 'utils/constants.jsx';
+import DelayedAction from 'utils/delayed_action.jsx';
 import {Tooltip, OverlayTrigger} from 'react-bootstrap';
 
 import React from 'react';
@@ -28,6 +26,10 @@ export default class PostInfo extends React.Component {
         this.removePost = this.removePost.bind(this);
         this.flagPost = this.flagPost.bind(this);
         this.unflagPost = this.unflagPost.bind(this);
+
+        this.canEdit = false;
+        this.canDelete = false;
+        this.editDisableAction = new DelayedAction(this.handleEditDisable);
     }
 
     handleDropdownClick(e) {
@@ -38,6 +40,10 @@ export default class PostInfo extends React.Component {
         }
     }
 
+    handleEditDisable() {
+        this.canEdit = false;
+    }
+
     componentDidMount() {
         $('#post_dropdown' + this.props.post.id).on('shown.bs.dropdown', () => this.props.handleDropdownOpened(true));
         $('#post_dropdown' + this.props.post.id).on('hidden.bs.dropdown', () => this.props.handleDropdownOpened(false));
@@ -45,9 +51,9 @@ export default class PostInfo extends React.Component {
 
     createDropdown() {
         var post = this.props.post;
-        var isOwner = this.props.currentUser.id === post.user_id;
-        var isAdmin = TeamStore.isTeamAdminForCurrentTeam() || UserStore.isSystemAdminForCurrentUser();
-        const isSystemMessage = post.type && post.type.startsWith(Constants.SYSTEM_MESSAGE_PREFIX);
+
+        this.canDelete = PostUtils.canDeletePost(post);
+        this.canEdit = PostUtils.canEditPost(post, this.editDisableAction);
 
         if (post.state === Constants.POST_FAILED || post.state === Constants.POST_LOADING) {
             return '';
@@ -139,7 +145,7 @@ export default class PostInfo extends React.Component {
             </li>
         );
 
-        if (isOwner || isAdmin) {
+        if (this.canDelete) {
             dropdownContents.push(
                 <li
                     key='deletePost'
@@ -162,12 +168,12 @@ export default class PostInfo extends React.Component {
             );
         }
 
-        if (isOwner && !isSystemMessage) {
+        if (this.canEdit) {
             dropdownContents.push(
                 <li
                     key='editPost'
                     role='presentation'
-                    className='dropdown-submenu'
+                    className={this.canEdit ? 'dropdown-submenu' : 'dropdown-submenu hide'}
                 >
                     <a
                         href='#'
diff --git a/webapp/components/rhs_comment.jsx b/webapp/components/rhs_comment.jsx
index f83574496..885c32b29 100644
--- a/webapp/components/rhs_comment.jsx
+++ b/webapp/components/rhs_comment.jsx
@@ -9,9 +9,6 @@ import ProfilePicture from 'components/profile_picture.jsx';
 import ReactionListContainer from 'components/post_view/components/reaction_list_container.jsx';
 import RhsDropdown from 'components/rhs_dropdown.jsx';
 
-import TeamStore from 'stores/team_store.jsx';
-import UserStore from 'stores/user_store.jsx';
-
 import * as GlobalActions from 'actions/global_actions.jsx';
 import {flagPost, unflagPost} from 'actions/post_actions.jsx';
 
@@ -19,6 +16,7 @@ import * as Utils from 'utils/utils.jsx';
 import * as PostUtils from 'utils/post_utils.jsx';
 
 import Constants from 'utils/constants.jsx';
+import DelayedAction from 'utils/delayed_action.jsx';
 import {Tooltip, OverlayTrigger} from 'react-bootstrap';
 
 import {FormattedMessage} from 'react-intl';
@@ -36,6 +34,10 @@ export default class RhsComment extends React.Component {
         this.flagPost = this.flagPost.bind(this);
         this.unflagPost = this.unflagPost.bind(this);
 
+        this.canEdit = false;
+        this.canDelete = false;
+        this.editDisableAction = new DelayedAction(this.handleEditDisable);
+
         this.state = {};
     }
 
@@ -44,6 +46,10 @@ export default class RhsComment extends React.Component {
         GlobalActions.showGetPostLinkModal(this.props.post);
     }
 
+    handleEditDisable() {
+        this.canEdit = false;
+    }
+
     removePost() {
         GlobalActions.emitRemovePost(this.props.post);
     }
@@ -110,8 +116,8 @@ export default class RhsComment extends React.Component {
             return '';
         }
 
-        const isOwner = this.props.currentUser.id === post.user_id;
-        var isAdmin = TeamStore.isTeamAdminForCurrentTeam() || UserStore.isSystemAdminForCurrentUser();
+        this.canDelete = PostUtils.canDeletePost(post);
+        this.canEdit = PostUtils.canEditPost(post, this.editDisableAction);
 
         var dropdownContents = [];
 
@@ -170,7 +176,7 @@ export default class RhsComment extends React.Component {
             </li>
         );
 
-        if (isOwner || isAdmin) {
+        if (this.canDelete) {
             dropdownContents.push(
                 <li
                     role='presentation'
@@ -193,11 +199,12 @@ export default class RhsComment extends React.Component {
             );
         }
 
-        if (isOwner) {
+        if (this.canEdit) {
             dropdownContents.push(
                 <li
                     role='presentation'
                     key='edit-button'
+                    className={this.canEdit ? '' : 'hide'}
                 >
                     <a
                         href='#'
diff --git a/webapp/components/rhs_root_post.jsx b/webapp/components/rhs_root_post.jsx
index 235ed8db7..4d2c221df 100644
--- a/webapp/components/rhs_root_post.jsx
+++ b/webapp/components/rhs_root_post.jsx
@@ -11,7 +11,6 @@ import RhsDropdown from 'components/rhs_dropdown.jsx';
 
 import ChannelStore from 'stores/channel_store.jsx';
 import UserStore from 'stores/user_store.jsx';
-import TeamStore from 'stores/team_store.jsx';
 
 import * as GlobalActions from 'actions/global_actions.jsx';
 import {flagPost, unflagPost} from 'actions/post_actions.jsx';
@@ -20,6 +19,7 @@ import * as Utils from 'utils/utils.jsx';
 import * as PostUtils from 'utils/post_utils.jsx';
 
 import Constants from 'utils/constants.jsx';
+import DelayedAction from 'utils/delayed_action.jsx';
 import {Tooltip, OverlayTrigger} from 'react-bootstrap';
 
 import {FormattedMessage} from 'react-intl';
@@ -34,6 +34,10 @@ export default class RhsRootPost extends React.Component {
         this.flagPost = this.flagPost.bind(this);
         this.unflagPost = this.unflagPost.bind(this);
 
+        this.canEdit = false;
+        this.canDelete = false;
+        this.editDisableAction = new DelayedAction(this.handleEditDisable);
+
         this.state = {};
     }
 
@@ -42,6 +46,10 @@ export default class RhsRootPost extends React.Component {
         GlobalActions.showGetPostLinkModal(this.props.post);
     }
 
+    handleEditDisable() {
+        this.canEdit = false;
+    }
+
     shouldComponentUpdate(nextProps) {
         if (nextProps.status !== this.props.status) {
             return true;
@@ -96,13 +104,13 @@ export default class RhsRootPost extends React.Component {
         const post = this.props.post;
         const user = this.props.user;
         const mattermostLogo = Constants.MATTERMOST_ICON_SVG;
-        var isOwner = this.props.currentUser.id === post.user_id;
-        var isAdmin = TeamStore.isTeamAdminForCurrentTeam() || UserStore.isSystemAdminForCurrentUser();
-        const isSystemMessage = post.type && post.type.startsWith(Constants.SYSTEM_MESSAGE_PREFIX);
         var timestamp = user ? user.last_picture_update : 0;
         var channel = ChannelStore.get(post.channel_id);
         const flagIcon = Constants.FLAG_ICON_SVG;
 
+        this.canDelete = PostUtils.canDeletePost(post);
+        this.canEdit = PostUtils.canEditPost(post, this.editDisableAction);
+
         var type = 'Post';
         if (post.root_id.length > 0) {
             type = 'Comment';
@@ -189,7 +197,7 @@ export default class RhsRootPost extends React.Component {
             </li>
         );
 
-        if (isOwner || isAdmin) {
+        if (this.canDelete) {
             dropdownContents.push(
                 <li
                     key='rhs-root-delete'
@@ -209,11 +217,12 @@ export default class RhsRootPost extends React.Component {
             );
         }
 
-        if (isOwner && !isSystemMessage) {
+        if (this.canEdit) {
             dropdownContents.push(
                 <li
                     key='rhs-root-edit'
                     role='presentation'
+                    className={this.canEdit ? '' : 'hide'}
                 >
                     <a
                         href='#'
diff --git a/webapp/i18n/en.json b/webapp/i18n/en.json
index ff2f7d071..f92516119 100644
--- a/webapp/i18n/en.json
+++ b/webapp/i18n/en.json
@@ -330,6 +330,16 @@
   "admin.general.policy.restrictPublicChannelManagementTitle": "Enable public channel renaming for:",
   "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.policy.permissionsDeletePostAll": "Message authors can delete their own messages, and Administrators can delete any message",
+  "admin.general.policy.permissionsDeletePostAdmin": "Team Admins and System Admins",
+  "admin.general.policy.permissionsDeletePostSystemAdmin": "System Admins",
+  "admin.general.policy.restrictPostDeleteTitle": "Allow which users to delete messages:",
+  "admin.general.policy.restrictPostDeleteDescription": "Set policy on who has permission to delete messages.",
+  "admin.general.policy.allowEditPostTitle": "Allow users to edit their messages:",
+  "admin.general.policy.allowEditPostDescription": "Set policy on the length of time authors have to edit their messages after posting.",
+  "admin.general.policy.allowEditPostAlways": "Any time",
+  "admin.general.policy.allowEditPostNever": "Never",
+  "admin.general.policy.allowEditPostTimeLimit": "seconds after posting",
   "admin.general.privacy": "Privacy",
   "admin.general.usersAndTeams": "Users and Teams",
   "admin.gitab.clientSecretDescription": "Obtain this value via the instructions above for logging into GitLab.",
diff --git a/webapp/stores/user_store.jsx b/webapp/stores/user_store.jsx
index 2369c38df..fb1e36590 100644
--- a/webapp/stores/user_store.jsx
+++ b/webapp/stores/user_store.jsx
@@ -576,7 +576,7 @@ class UserStoreClass extends EventEmitter {
         var current = this.getCurrentUser();
 
         if (current) {
-            return Utils.isAdmin(current.roles);
+            return Utils.isSystemAdmin(current.roles);
         }
 
         return false;
diff --git a/webapp/utils/constants.jsx b/webapp/utils/constants.jsx
index c8ac74a82..6377f27f2 100644
--- a/webapp/utils/constants.jsx
+++ b/webapp/utils/constants.jsx
@@ -860,6 +860,13 @@ export const Constants = {
     PERMISSIONS_ALL: 'all',
     PERMISSIONS_TEAM_ADMIN: 'team_admin',
     PERMISSIONS_SYSTEM_ADMIN: 'system_admin',
+    PERMISSIONS_DELETE_POST_ALL: 'all',
+    PERMISSIONS_DELETE_POST_TEAM_ADMIN: 'team_admin',
+    PERMISSIONS_DELETE_POST_SYSTEM_ADMIN: 'system_admin',
+    ALLOW_EDIT_POST_ALWAYS: 'always',
+    ALLOW_EDIT_POST_NEVER: 'never',
+    ALLOW_EDIT_POST_TIME_LIMIT: 'time_limit',
+    DEFAULT_POST_EDIT_TIME_LIMIT: 300,
     MENTION_CHANNELS: 'mention.channels',
     MENTION_MORE_CHANNELS: 'mention.morechannels',
     MENTION_MEMBERS: 'mention.members',
diff --git a/webapp/utils/post_utils.jsx b/webapp/utils/post_utils.jsx
index 88021c2a5..20993b95c 100644
--- a/webapp/utils/post_utils.jsx
+++ b/webapp/utils/post_utils.jsx
@@ -3,11 +3,19 @@
 
 import Client from 'client/web_client.jsx';
 import Constants from 'utils/constants.jsx';
+import * as Utils from 'utils/utils.jsx';
+
+import TeamStore from 'stores/team_store.jsx';
+import UserStore from 'stores/user_store.jsx';
 
 export function isSystemMessage(post) {
     return post.type && (post.type.lastIndexOf(Constants.SYSTEM_MESSAGE_PREFIX) === 0);
 }
 
+export function isPostOwner(post) {
+    return UserStore.getCurrentId() === post.user_id;
+}
+
 export function isComment(post) {
     if ('root_id' in post) {
         return post.root_id !== '' && post.root_id != null;
@@ -33,3 +41,36 @@ export function getProfilePicSrcForPost(post, timestamp) {
 
     return src;
 }
+
+export function canDeletePost(post) {
+    var isOwner = isPostOwner(post);
+    var isAdmin = TeamStore.isTeamAdminForCurrentTeam() || UserStore.isSystemAdminForCurrentUser();
+    var isSystemAdmin = UserStore.isSystemAdminForCurrentUser();
+
+    if (global.window.mm_license.IsLicensed === 'true') {
+        return (global.window.mm_config.RestrictPostDelete === Constants.PERMISSIONS_DELETE_POST_ALL && (isOwner || isAdmin)) ||
+            (global.window.mm_config.RestrictPostDelete === Constants.PERMISSIONS_DELETE_POST_TEAM_ADMIN && isAdmin) ||
+            (global.window.mm_config.RestrictPostDelete === Constants.PERMISSIONS_DELETE_POST_SYSTEM_ADMIN && isSystemAdmin);
+    }
+    return isOwner || isAdmin;
+}
+
+export function canEditPost(post, editDisableAction) {
+    var isOwner = isPostOwner(post);
+
+    var canEdit = isOwner && !isSystemMessage(post);
+
+    if (canEdit && global.window.mm_license.IsLicensed === 'true') {
+        if (global.window.mm_config.AllowEditPost === Constants.ALLOW_EDIT_POST_NEVER) {
+            canEdit = false;
+        } else if (global.window.mm_config.AllowEditPost === Constants.ALLOW_EDIT_POST_TIME_LIMIT) {
+            var timeLeft = (post.create_at + (global.window.mm_config.PostEditTimeLimit * 1000)) - Utils.getTimestamp();
+            if (timeLeft > 0) {
+                editDisableAction.fireAfter(timeLeft + 1000);
+            } else {
+                canEdit = false;
+            }
+        }
+    }
+    return canEdit;
+}
\ No newline at end of file