Changed protocol a bit to be more clear and universal

docs/samples/request_get.xml

@@ -6,7 +6,11 b''
         </models>
     </version>
     <data>
-        <id>id1/1</id>
-        <id>id2/56</id>
+        <type>get</type>
+        <model>post</model>
+        <options>
+            <id>id1/1</id>
+            <id>id2/56</id>
+        </options>
     </data>
 </request>

docs/samples/request_pull.xml

@@ -7,8 +7,17 b''
         </models>
     </version>
     <data>
+        <!-- Request type -->
         <type>pull</type>
-        <timestamp>0</timestamp>
+        <!-- Model which we wish to pull -->
+        <model>post</model>
+        <options>
+            <timestamp_from>0</timestamp_from>
+            <timestamp_to>0</timestamp_to>
+            <tags>
+                <tag>tag1</tag>
+            </tags>
+        </options>
         <hosts>
             <allow>
                 <host>*</host>
@@ -18,9 +27,6 b''
                 <pool>test1</pool>
                 <pool>test2</pool>
             </pools>
-            <tags>
-                <tag>tag1</tag>
-            </tags>
         </hosts>
     </data>
 </request>

docs/sync.markdown

@@ -4,17 +4,6 b' This document discribes the server sync '
 
 # DRAFT PROTOCOL DESCRIPTION #
 
-Version:
-* Protocol version
-* Model version
-
-Node data:
-* Public key
-
-Object data:
-* Post
-* Post list (for sync)
-
 The node requests other node's changes list since some time (since epoch if
 this is the start). The other node sends a list of post ids or posts in the
 XML or JSON format.
@@ -30,3 +19,11 b' saved from the node (or the node id must'
 Each node holds a list of networks it wants to get info from.
 
 Each post has an ID in the unique format: node-id/post-id
+
+All requests pass a request type, protocol and model versions and a list of
+optional arguments used for filtering.
+
+# REQUESTS #
+Request types:
+* pull - pull the desired model ids
+* get - get models by ids