Improve copy in Purgatory page

Signed-off-by: Alex Paxton <thealexpaxton@gmail.com>

ui/src/auth/Purgatory.js

@@ -1,30 +1,38 @@
 import React, {PropTypes} from 'react'
 import {connect} from 'react-redux'
 
-const Purgatory = ({currentOrganization}) => {
-  return (
-    <div>
-      <div className="auth-page">
-        <div className="auth-box">
-          <div className="auth-logo" />
-          <div className="auth--purgatory">
-            <h3>
-              Logged in to <strong>{currentOrganization.name}</strong>
-            </h3>
-            <p>
-              You have not been assigned a Role yet<br />Contact your
-              Administrator for assistance
-            </p>
-          </div>
+import {MEMBER_ROLE} from 'src/auth/Authorized'
+
+const memberCopy = (
+  <p>This role does not grant you sufficient permissions to view Chronograf.</p>
+)
+const viewerCopy = (
+  <p>
+    This organization does not have any configured sources<br />and your role
+    does not have permission to configure a source.
+  </p>
+)
+
+const Purgatory = ({currentOrganization, role}) =>
+  <div>
+    <div className="auth-page">
+      <div className="auth-box">
+        <div className="auth-logo" />
+        <div className="auth--purgatory">
+          <h3>
+            Logged in to <strong>{currentOrganization.name}</strong> as a{' '}
+            <em>{role}</em>.
+          </h3>
+          {role === MEMBER_ROLE ? memberCopy : viewerCopy}
+          <p>Contact your Administrator for assistance.</p>
         </div>
-        <p className="auth-credits">
-          Made by <span className="icon cubo-uniform" />InfluxData
-        </p>
-        <div className="auth-image" />
       </div>
+      <p className="auth-credits">
+        Made by <span className="icon cubo-uniform" />InfluxData
+      </p>
+      <div className="auth-image" />
     </div>
-  )
-}
+  </div>
 
 const {shape, string} = PropTypes
 
@@ -33,10 +41,12 @@ Purgatory.propTypes = {
     id: string.isRequired,
     name: string.isRequired,
   }).isRequired,
+  role: string.isRequired,
 }
 
-const mapStateToProps = ({auth: {me: {currentOrganization}}}) => ({
+const mapStateToProps = ({auth: {me: {currentOrganization, role}}}) => ({
   currentOrganization,
+  role,
 })
 
 export default connect(mapStateToProps)(Purgatory)