work on forward secrecy

onionr/static-data/default-plugins/metadataprocessor/main.py

@@ -22,28 +22,50 @@
 import logger, config
 import os, sys, json, time, random, shutil, base64, getpass, datetime, re
 from onionrblockapi import Block
+import onionrusers
 
 plugin_name = 'metadataprocessor'
 
 # event listeners
 
+def _processUserInfo(api, newBlock):
+    '''
+        Set the username for a particular user, from a signed block by them
+    '''
+    myBlock = newBlock
+    peerName = myBlock.getMetadata('name')
+    try:
+        if len(peerName) > 20:
+            raise onionrexceptions.InvalidMetdata('Peer name specified is too large')
+    except TypeError:
+        pass
+    except onionrexceptions.InvalidMetadata:
+        pass
+    else:
+        api.get_core().setPeerInfo(signer, 'name', peerName)
+        logger.info('%s is now using the name %s.' % (signer, api.get_utils().escapeAnsi(peerName)))
+
+def _processForwardKey(api, myBlock):
+    '''
+        Get the forward secrecy key specified by the user for us to use
+    '''
+    peer = onionrusers.OnionrUser(self.api.get_core(), myBlock.signer)
+
 def on_processBlocks(api):
     myBlock = api.data['block']
     blockType = api.data['type']
     print('blockType is ' + blockType)
+
+    # Process specific block types
+
+    # userInfo blocks, such as for setting username
     if blockType == 'userInfo':
         if myBlock.verifySig():
-            peerName = myBlock.getMetadata('name')
-            try:
-                if len(peerName) > 20:
-                    raise onionrexceptions.InvalidMetdata('Peer name specified is too large')
-            except TypeError:
-                pass
-            except onionrexceptions.InvalidMetadata:
-                pass
-            else:
-                api.get_core().setPeerInfo(signer, 'name', peerName)
-                logger.info('%s is now using the name %s.' % (signer, api.get_utils().escapeAnsi(peerName)))
+            _processUserInfo(api, myBlock)
+    # forwardKey blocks
+    elif blockType == 'forwardKey':
+        if myBlock.verifySig():
+            _processForwardKey(api, myBlock)
 
 def on_init(api, data = None):