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diff --git a/webapp/components/edit_channel_purpose_modal.jsx b/webapp/components/edit_channel_purpose_modal.jsx
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index 000000000..31cbdd240
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+++ b/webapp/components/edit_channel_purpose_modal.jsx
@@ -0,0 +1,188 @@
+// Copyright (c) 2015 Mattermost, Inc. All Rights Reserved.
+// See License.txt for license information.
+
+import $ from 'jquery';
+import ReactDOM from 'react-dom';
+import * as AsyncClient from 'utils/async_client.jsx';
+import * as Client from 'utils/client.jsx';
+import Constants from 'utils/constants.jsx';
+
+import {intlShape, injectIntl, defineMessages, FormattedMessage} from 'react-intl';
+
+import {Modal} from 'react-bootstrap';
+
+const holders = defineMessages({
+    error: {
+        id: 'edit_channel_purpose_modal.error',
+        defaultMessage: 'This channel purpose is too long, please enter a shorter one'
+    }
+});
+
+import React from 'react';
+
+export default class EditChannelPurposeModal extends React.Component {
+    constructor(props) {
+        super(props);
+
+        this.handleHide = this.handleHide.bind(this);
+        this.handleSave = this.handleSave.bind(this);
+
+        this.state = {serverError: ''};
+    }
+
+    componentDidUpdate() {
+        if (this.props.show) {
+            $(ReactDOM.findDOMNode(this.refs.purpose)).focus();
+        }
+    }
+
+    handleHide() {
+        this.setState({serverError: ''});
+
+        if (this.props.onModalDismissed) {
+            this.props.onModalDismissed();
+        }
+    }
+
+    handleSave() {
+        if (!this.props.channel) {
+            return;
+        }
+
+        const data = {
+            channel_id: this.props.channel.id,
+            channel_purpose: ReactDOM.findDOMNode(this.refs.purpose).value.trim()
+        };
+
+        Client.updateChannelPurpose(data,
+            () => {
+                AsyncClient.getChannel(this.props.channel.id);
+
+                this.handleHide();
+            },
+            (err) => {
+                if (err.id === 'api.context.invalid_param.app_error') {
+                    this.setState({serverError: this.props.intl.formatMessage(holders.error)});
+                } else {
+                    this.setState({serverError: err.message});
+                }
+            }
+        );
+    }
+
+    render() {
+        if (!this.props.show) {
+            return null;
+        }
+
+        let serverError = null;
+        if (this.state.serverError) {
+            serverError = (
+                <div className='form-group has-error'>
+                    <br/>
+                    <label className='control-label'>{this.state.serverError}</label>
+                </div>
+            );
+        }
+
+        let title = (
+            <span>
+                <FormattedMessage
+                    id='edit_channel_purpose_modal.title1'
+                    defaultMessage='Edit Purpose'
+                />
+            </span>
+        );
+        if (this.props.channel.display_name) {
+            title = (
+                <span>
+                    <FormattedMessage
+                        id='edit_channel_purpose_modal.title2'
+                        defaultMessage='Edit Purpose for '
+                    />
+                    <span className='name'>{this.props.channel.display_name}</span>
+                </span>
+            );
+        }
+
+        let channelType = (
+            <FormattedMessage
+                id='edit_channel_purpose_modal.channel'
+                defaultMessage='Channel'
+            />
+        );
+        if (this.props.channel.type === Constants.PRIVATE_CHANNEL) {
+            channelType = (
+                <FormattedMessage
+                    id='edit_channel_purpose_modal.group'
+                    defaultMessage='Group'
+                />
+            );
+        }
+
+        return (
+            <Modal
+                className='modal-edit-channel-purpose'
+                ref='modal'
+                show={this.props.show}
+                onHide={this.handleHide}
+            >
+                <Modal.Header closeButton={true}>
+                    <Modal.Title>
+                        {title}
+                    </Modal.Title>
+                </Modal.Header>
+                <Modal.Body>
+                    <p>
+                        <FormattedMessage
+                            id='edit_channel_purpose_modal.body'
+                            defaultMessage='Describe how this {type} should be used. This text appears in the channel list in the "More..." menu and helps others decide whether to join.'
+                            values={{
+                                type: (channelType)
+                            }}
+                        />
+                    </p>
+                    <textarea
+                        ref='purpose'
+                        className='form-control no-resize'
+                        rows='6'
+                        maxLength='128'
+                        defaultValue={this.props.channel.purpose}
+                    />
+                    {serverError}
+                </Modal.Body>
+                <Modal.Footer>
+                    <button
+                        type='button'
+                        className='btn btn-default'
+                        onClick={this.handleHide}
+                    >
+                        <FormattedMessage
+                            id='edit_channel_purpose_modal.cancel'
+                            defaultMessage='Cancel'
+                        />
+                    </button>
+                    <button
+                        type='button'
+                        className='btn btn-primary'
+                        onClick={this.handleSave}
+                    >
+                        <FormattedMessage
+                            id='edit_channel_purpose_modal.save'
+                            defaultMessage='Save'
+                        />
+                    </button>
+                </Modal.Footer>
+            </Modal>
+        );
+    }
+}
+
+EditChannelPurposeModal.propTypes = {
+    intl: intlShape.isRequired,
+    show: React.PropTypes.bool.isRequired,
+    channel: React.PropTypes.object,
+    onModalDismissed: React.PropTypes.func.isRequired
+};
+
+export default injectIntl(EditChannelPurposeModal);
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