xep-0363: refine error conditions

xep-0363.xml

@@ -29,6 +29,16 @@
     <email>daniel@gultsch.de</email>
     <jid>daniel@gultsch.de</jid>
   </author>
+  <revision>
+    <version>0.7.0</version>
+    <date>2018-05-30</date>
+    <initials>dg</initials>
+    <remark>
+      <ul>
+        <li>Changed not-allowed error to forbidden as this is more appropriate according to &rfc6120;</li>
+      </ul>
+    </remark>
+  </revision>
   <revision>
     <version>0.6.0</version>
     <date>2018-04-21</date>
@@ -225,7 +235,7 @@
 </iq>]]></example>
 </section1>
 <section1 topic='Error conditions' anchor='errors'>
-  <p>Instead of providing the client with a slot the service MAY respond with an error if the requested file size is too large.</p>
+  <p>Instead of providing the client with a slot the service MAY respond with an error if the requested file size is too large. In addition the entity MAY inform the requester about the maximum file size.</p>
   <example caption='Alternative response by the upload service if the file size was too large'><![CDATA[
 <iq from='upload.montague.tld'
     id='step_03'
@@ -261,7 +271,7 @@
       stamp='2017-12-03T23:42:05Z' />
   </error>
 </iq>]]></example>
-<example caption='Alternative response by the upload service to indicate a permanent error to a client that is not allowed to upload files'><![CDATA[
+<example caption='Alternative response by the upload service to indicate an auth error to a client that is not allowed to upload files'><![CDATA[
 <iq from='upload.montague.tld'
     id='step_03'
     to='romeo@montague.tld/garden'
@@ -270,8 +280,8 @@
      filename='très cool.jpg'
      size='23456'
      content-type='image/jpeg' />
-  <error type='cancel'>
-    <not-allowed xmlns='urn:ietf:params:xml:ns:xmpp-stanzas' />
+  <error type='auth'>
+    <forbidden xmlns='urn:ietf:params:xml:ns:xmpp-stanzas' />
     <text xmlns='urn:ietf:params:xml:ns:xmpp-stanzas'>Only premium members are allowed to upload files</text>
   </error>
 </iq>]]></example>