work on new peer pool system in new communicator

onionr/communicator2.py

@@ -20,6 +20,7 @@
     along with this program.  If not, see <https://www.gnu.org/licenses/>.
 '''
 import sys, os, core, config, onionrblockapi as block, requests, time, logger, threading, onionrplugins as plugins
+import onionrexceptions
 from defusedxml import minidom
 
 class OnionrCommunicatorDaemon:
@@ -31,6 +32,8 @@ class OnionrCommunicatorDaemon:
         self.delay = 1
         self.proxyPort = sys.argv[2]
 
+        self.onlinePeers = []
+
         self.threadCounts = {}
 
         self.shutdown = False
@@ -49,8 +52,10 @@ class OnionrCommunicatorDaemon:
         if debug or developmentMode:
             OnionrCommunicatorTimers(self, self.heartbeat, 10)
 
+        self.getOnlinePeers()
         OnionrCommunicatorTimers(self, self.daemonCommands, 5)
         OnionrCommunicatorTimers(self, self.detectAPICrash, 12)
+        OnionrCommunicatorTimers(self, self.getOnlinePeers, 60)
 
         # Main daemon loop, mainly for calling timers, do not do any complex operations here
         while not self.shutdown:
@@ -59,10 +64,50 @@ class OnionrCommunicatorDaemon:
             time.sleep(self.delay)
         logger.info('Goodbye.')
     
+    def decrementThreadCount(self, threadName):
+        if self.threadCounts[threadName] > 0:
+            self.threadCounts[threadName] -= 1
+
+    def getOnlinePeers(self):
+        '''Manages the self.onlinePeers attribute list'''
+        logger.info('Refreshing peer pool.')
+        maxPeers = 4
+        needed = maxPeers - len(self.onlinePeers)
+
+        for i in range(needed):
+            self.connectNewPeer()
+        self.decrementThreadCount('getOnlinePeers')
+
+    def connectNewPeer(self, peer=''):
+        '''Adds a new random online peer to self.onlinePeers'''
+        retData = False
+        if peer != '':
+            if self._core._utils.validateID(peer):
+                peerList = [peer]
+            else:
+                raise onionrexceptions.InvalidAddress('Will not attempt connection test to invalid address')
+        else:
+            peerList = self._core.listAdders()
+
+        if len(peerList) == 0:
+            peerList.extend(self._core.bootstrapList)
+
+        for address in peerList:
+            if self.peerAction(address, 'ping') == 'pong!':
+                logger.info('connected to ' + address)
+                self.onlinePeers.append(address)
+                retData = address
+                break
+            else:
+                logger.debug('failed to connect to ' + address)
+        else:
+            logger.warn('Could not connect to any peer')
+        return retData            
+        
     def heartbeat(self):
         '''Show a heartbeat debug message'''
         logger.debug('Communicator heartbeat')
-        self.threadCounts['heartbeat'] -= 1
+        self.decrementThreadCount('heartbeat')
 
     def daemonCommands(self):
         '''process daemon commands from daemonQueue'''
@@ -71,20 +116,47 @@ class OnionrCommunicatorDaemon:
         if cmd is not False:
             if cmd[0] == 'shutdown':
                 self.shutdown = True
-            elif cmd[0] == 'announce':
+            elif cmd[0] == 'announceNode':
                 self.announce(cmd[1])
+            elif cmd[0] == 'runCheck':
+                logger.debug('Status check; looks good.')
+                open('data/.runcheck', 'w+').close()
+            elif cmd[0] == 'connectedPeers':
+                self.printOnlinePeers()
             else:
                 logger.info('Recieved daemonQueue command:' + cmd[0])
-        self.threadCounts['daemonCommands'] -= 1
+        self.decrementThreadCount('daemonCommands')
+    
+    def printOnlinePeers(self):
+        '''logs online peer list'''
+        if len(self.onlinePeers) == 0:
+            logger.warn('No online peers')
+            return
+        for i in self.onlinePeers:
+            logger.info(self.onlinePeers[i])
 
     def announce(self, peer):
         '''Announce to peers'''
+        announceCount = 0
+        announceAmount = 2
         for peer in self._core.listAdders():
-            self.peerAction(peer, 'announce', self._core.hsAdder)
+            announceCount += 1
+            if self.peerAction(peer, 'announce', self._core.hsAdder) == 'Success':
+                logger.info('Successfully introduced node to ' + peer)
+                break
+            else:
+                if announceCount == announceAmount:
+                    logger.warn('Could not introduce node. Try again soon')
+                    break
     
     def peerAction(self, peer, action, data=''):
         '''Perform a get request to a peer'''
-        return self._core._utils.doGetRequest('http://' + peer + '/public/?action=' + action + '&data=' + data, port=self.proxyPort)
+        logger.info('Performing ' + action + ' with ' + peer + ' on port ' + str(self.proxyPort))
+        retData = self._core._utils.doGetRequest('http://' + peer + '/public/?action=' + action + '&data=' + data, port=self.proxyPort)
+        if retData == False:
+            self.onlinePeers.remove(peer)
+            self.getOnlinePeers() # Will only add a new peer to pool if needed
+        return retData
 
     def detectAPICrash(self):
         '''exit if the api server crashes/stops'''
@@ -97,7 +169,7 @@ class OnionrCommunicatorDaemon:
                 # This executes if the api is NOT detected to be running
                 logger.error('Daemon detected API crash (or otherwise unable to reach API after long time), stopping...')
                 self.shutdown = True
-        self.threadCounts['detectAPICrash'] -= 1
+        self.decrementThreadCount('detectAPICrash')
 
     def header(self, message = logger.colors.fg.pink + logger.colors.bold + 'Onionr' + logger.colors.reset + logger.colors.fg.pink + ' has started.'):
         if os.path.exists('static-data/header.txt'):

onionr/onionr.py

@@ -197,6 +197,7 @@ class Onionr:
 
             'add-file': self.addFile,
             'addfile': self.addFile,
+            'listconn': self.listConn,
 
             'import-blocks': self.onionrUtils.importNewBlocks,
             'importblocks': self.onionrUtils.importNewBlocks,
@@ -226,6 +227,7 @@ class Onionr:
             'get-pms': 'Shows private messages sent to you',
             'add-file': 'Create an Onionr block from a file',
             'import-blocks': 'import blocks from the disk (Onionr is transport-agnostic!)',
+            'listconn': 'list connected peers',
             'introduce': 'Introduce your node to the public Onionr network',
         }
 
@@ -254,6 +256,9 @@ class Onionr:
     def getCommands(self):
         return self.cmds
 
+    def listConn(self):
+        self.onionrCore.daemonQueueAdd('connectedPeers')
+
     def getWebPassword(self):
         return config.get('client')['client_hmac']
 

onionr/onionrexceptions.py

@@ -20,3 +20,5 @@
 
 class MissingPort(Exception):
     pass
+class InvalidAddress(Exception):
+    pass

onionr/onionrutils.py

@@ -498,8 +498,14 @@ class OnionrUtils:
         else:
             return
         headers = {'user-agent': 'PyOnionr'}
+        try:
+            proxies = {'http': 'socks5h://127.0.0.1:' + str(port), 'https': 'socks5h://127.0.0.1:' + str(port)}
             r = requests.get(url, headers=headers, proxies=proxies, allow_redirects=False, timeout=(15, 30))
-        return r.text
+            retData = r.text
+        except requests.exceptions.RequestException as e:
+            logger.debug('Error: %s' % str(e))
+            retData = False
+        return retData
 
     def getNistBeaconSalt(self, torPort=0):
         '''