Добавлен юнит для systemd

[vpproxy.git] / vphttp.py

diff --git a/vphttp.py b/vphttp.py
index 155db57e8a739b03e35927112d76df419053c83d..33da300519327ebbb4e4770762463afccafd7b3b 100644 (file)
--- a/vphttp.py
+++ b/vphttp.py
@@ -37,7 +37,9 @@ try:
 except ImportError:
     pass
 
 except ImportError:
     pass
 

+import uuid

 
 

+from apscheduler.schedulers.background import BackgroundScheduler

 
 class HTTPHandler(BaseHTTPServer.BaseHTTPRequestHandler):
 
 
 class HTTPHandler(BaseHTTPServer.BaseHTTPRequestHandler):
 


@@ -86,11 +88,12 @@ class HTTPHandler(BaseHTTPServer.BaseHTTPRequestHandler):
 
         try:
             while True:
 
         try:
             while True:

-
+            

                 if not self.clientconnected:
                     logger.debug("Client is not connected, terminating")
                     break
 
                 if not self.clientconnected:
                     logger.debug("Client is not connected, terminating")
                     break
 

+                VPStuff.vlcclient.mark(self.vlcid)

                 data = self.video.read(4096)
                 if data and self.clientconnected:
                     self.wfile.write(data)
                 data = self.video.read(4096)
                 if data and self.clientconnected:
                     self.wfile.write(data)


@@ -135,6 +138,7 @@ class HTTPHandler(BaseHTTPServer.BaseHTTPRequestHandler):
         '''
         GET request handler
         '''
         '''
         GET request handler
         '''

+

         logger = logging.getLogger('http_HTTPHandler')
         self.clientconnected = True
         # Don't wait videodestroydelay if error happened
         logger = logging.getLogger('http_HTTPHandler')
         self.clientconnected = True
         # Don't wait videodestroydelay if error happened


@@ -146,6 +150,14 @@ class HTTPHandler(BaseHTTPServer.BaseHTTPRequestHandler):
         # Connected client IP address
         self.clientip = self.request.getpeername()[0]
 
         # Connected client IP address
         self.clientip = self.request.getpeername()[0]
 

+        req_headers = self.headers 
+        self.client_data = { 
+          'ip': self.clientip, 
+          'forwarded-for': req_headers.get('X-Forwarded-For'),
+          'client-agent': req_headers.get('User-Agent'),
+          'uuid': uuid.uuid4()
+          }
+          

         if VPConfig.firewall:
             # If firewall enabled
             self.clientinrange = any(map(lambda i: ipaddr.IPAddress(self.clientip) \
         if VPConfig.firewall:
             # If firewall enabled
             self.clientinrange = any(map(lambda i: ipaddr.IPAddress(self.clientip) \


@@ -186,7 +198,7 @@ class HTTPHandler(BaseHTTPServer.BaseHTTPRequestHandler):
         self.handleRequest(headers_only)
 
     def handleRequest(self, headers_only):
         self.handleRequest(headers_only)
 
     def handleRequest(self, headers_only):

-
+      

         # Limit concurrent connections
         if 0 < VPConfig.maxconns <= VPStuff.clientcounter.total:
             logger.debug("Maximum connections reached, can't serve this")
         # Limit concurrent connections
         if 0 < VPConfig.maxconns <= VPStuff.clientcounter.total:
             logger.debug("Maximum connections reached, can't serve this")


@@ -217,26 +229,33 @@ class HTTPHandler(BaseHTTPServer.BaseHTTPRequestHandler):
                 self.params.append('0')
 
         # Adding client to clientcounter
                 self.params.append('0')
 
         # Adding client to clientcounter

-        clients = VPStuff.clientcounter.add(self.reqtype+'\\'+self.path_unquoted, self.clientip)
+        clients = VPStuff.clientcounter.add(self.reqtype+'/'+self.path_unquoted, self.client_data)

         # If we are the one client, but sucessfully got vp instance from clientcounter,
         # then somebody is waiting in the videodestroydelay state
 
         # Check if we are first client
         # If we are the one client, but sucessfully got vp instance from clientcounter,
         # then somebody is waiting in the videodestroydelay state
 
         # Check if we are first client

-        if VPStuff.clientcounter.get(self.reqtype+'\\'+self.path_unquoted)==1:
-            logger.debug("First client, should create VLC session")
-            shouldcreatevp = True
-        else:
-            logger.debug("Can reuse existing session")
-            shouldcreatevp = False

 
 

-        self.vlcid = hashlib.md5(self.reqtype+'\\'+self.path_unquoted).hexdigest()
+        self.vlcid = hashlib.md5(self.reqtype+'/'+self.path_unquoted).hexdigest()
+
+        try:
+            if not VPStuff.vlcclient.check_stream(self.vlcid):
+                logger.debug("First client, should create VLC session")
+                shouldcreatevp = True
+            else:
+                logger.debug("Can reuse existing session")
+                shouldcreatevp = False
+        except Exception as e:
+            logger.error('Plugin exception: ' + repr(e))
+            logger.error(traceback.format_exc())
+            self.dieWithError()            

 
         # Send fake headers if this User-Agent is in fakeheaderuas tuple
         if fakeua:
             logger.debug(
                 "Sending fake headers for " + useragent)
             self.send_response(200)
 
         # Send fake headers if this User-Agent is in fakeheaderuas tuple
         if fakeua:
             logger.debug(
                 "Sending fake headers for " + useragent)
             self.send_response(200)

-            self.send_header('Cache-Control','no-cache');
+            self.send_header('Cache-Control','no-cache, no-store, must-revalidate');
+            self.send_header('Pragma','no-cache');

             if self.reqtype in ("ogg","ogv"):
                 self.send_header("Content-Type", "video/ogg")
             else:
             if self.reqtype in ("ogg","ogv"):
                 self.send_header("Content-Type", "video/ogg")
             else:


@@ -297,7 +316,8 @@ class HTTPHandler(BaseHTTPServer.BaseHTTPRequestHandler):
                 for key in self.video.info().dict:
                     self.send_header(key, self.video.info().dict[key])
 
                 for key in self.video.info().dict:
                     self.send_header(key, self.video.info().dict[key])
 

-                self.send_header('Cache-Control','no-cache');
+                self.send_header('Cache-Control','no-cache, no-store, must-revalidate');
+                self.send_header('Pragma','no-cache');

 
                 if self.reqtype=="ogg":
                     self.send_header("Content-Type", "video/ogg")
 
                 if self.reqtype=="ogg":
                     self.send_header("Content-Type", "video/ogg")


@@ -307,6 +327,7 @@ class HTTPHandler(BaseHTTPServer.BaseHTTPRequestHandler):
                 # End headers. Next goes video data
                 self.end_headers()
                 logger.debug("Headers sent")
                 # End headers. Next goes video data
                 self.end_headers()
                 logger.debug("Headers sent")

+                self.headerssent = True

 
             # Run proxyReadWrite
             self.proxyReadWrite()
 
             # Run proxyReadWrite
             self.proxyReadWrite()


@@ -314,7 +335,12 @@ class HTTPHandler(BaseHTTPServer.BaseHTTPRequestHandler):
             # Waiting until hangDetector is joined
             self.hanggreenlet.join()
             logger.debug("Request handler finished")
             # Waiting until hangDetector is joined
             self.hanggreenlet.join()
             logger.debug("Request handler finished")

-
+        except (vlcclient.VlcException) as e:
+            logger.error("Exception: " + repr(e))
+            VPStuff.vlcerrors = VPStuff.vlcerrors + 1
+            logger.error("%s error(s) communicating VLC")
+            self.errorhappened = True
+            self.dieWithError()            

         except (vpclient.VPException, vlcclient.VlcException, urllib2.URLError) as e:
             logger.error("Exception: " + repr(e))
             self.errorhappened = True
         except (vpclient.VPException, vlcclient.VlcException, urllib2.URLError) as e:
             logger.error("Exception: " + repr(e))
             self.errorhappened = True


@@ -330,20 +356,8 @@ class HTTPHandler(BaseHTTPServer.BaseHTTPRequestHandler):
         finally:
             logger.debug("END REQUEST")
             logger.info("Closed connection from " + self.clientip + " path " + self.path)
         finally:
             logger.debug("END REQUEST")
             logger.info("Closed connection from " + self.clientip + " path " + self.path)

-            VPStuff.clientcounter.delete(self.reqtype+'\\'+self.path_unquoted, self.clientip)
-            if not VPStuff.clientcounter.get(self.reqtype+'\\'+self.path_unquoted):
-                try:
-                    logger.debug("That was the last client, destroying VPClient")
-                    logger.info("Stopping broadcasting " + self.path)
-                    VPStuff.vlcclient.stopBroadcast(self.vlcid)
-                except:
-                    pass
-                self.vp.destroy()
-            if not self.headersent:
-                logger.error("Problem receiving video stream, no headers!")
-                if VPStuff.clientcounter.total == 0:
-                    logger.error("Probably VLC hang")
-                    VPStuff.vlc.kill()
+            VPStuff.clientcounter.delete(self.reqtype+'/'+self.path_unquoted, self.client_data)
+            self.vp.destroy()

 
 class HTTPServer(SocketServer.ThreadingMixIn, BaseHTTPServer.HTTPServer):
 
 
 class HTTPServer(SocketServer.ThreadingMixIn, BaseHTTPServer.HTTPServer):
 


@@ -357,6 +371,7 @@ class VPStuff(object):
     Inter-class interaction class
     '''
     vlcclient=None
     Inter-class interaction class
     '''
     vlcclient=None

+    vlcerrors=0

 
 # taken from http://stackoverflow.com/questions/2699907/dropping-root-permissions-in-python
 def drop_privileges(uid_name, gid_name='nogroup'):
 
 # taken from http://stackoverflow.com/questions/2699907/dropping-root-permissions-in-python
 def drop_privileges(uid_name, gid_name='nogroup'):


@@ -439,6 +454,7 @@ DEVNULL = open(os.devnull, 'wb')
 def spawnVLC(cmd, delay = 0):
     try:
         VPStuff.vlc = psutil.Popen(cmd) #, stdout=DEVNULL, stderr=DEVNULL)
 def spawnVLC(cmd, delay = 0):
     try:
         VPStuff.vlc = psutil.Popen(cmd) #, stdout=DEVNULL, stderr=DEVNULL)

+        VPStuff.vlcerrors = 0

         gevent.sleep(delay)
         return True
     except:
         gevent.sleep(delay)
         return True
     except:


@@ -484,7 +500,18 @@ def clean_proc():
         gevent.sleep(1)
     if isRunning(VPStuff.vlc):
         # or not :)
         gevent.sleep(1)
     if isRunning(VPStuff.vlc):
         # or not :)

-        VPStuff.vlc.kill()
+        VPStuff.vlc.terminate()
+        gevent.sleep(1)
+        if isRunning(VPStuff.vlc):
+            VPStuff.vlc.kill()
+    del VPStuff.vlc
+
+def restartVLC(cmd, delay = 0):
+    clean_proc()
+    if spawnVLC(cmd, delay):
+        if connectVLC():
+            return True
+    return False

 
 # This is what we call to stop the server completely
 def shutdown(signum = 0, frame = 0):
 
 # This is what we call to stop the server completely
 def shutdown(signum = 0, frame = 0):


@@ -513,6 +540,15 @@ def _reloadconfig(signum=None, frame=None):
     from vpconfig import VPConfig
     logger.info('Config reloaded')
 
     from vpconfig import VPConfig
     logger.info('Config reloaded')
 

+sched = BackgroundScheduler()
+sched.start()
+
+def clean_streams():
+  if VPStuff.vlcclient:
+    VPStuff.vlcclient.clean_streams(VPConfig.videodestroydelay)
+
+job = sched.add_job(clean_streams, 'interval', seconds=15)
+

 # setting signal handlers
 try:
     gevent.signal(signal.SIGHUP, _reloadconfig)
 # setting signal handlers
 try:
     gevent.signal(signal.SIGHUP, _reloadconfig)


@@ -531,11 +567,13 @@ else:
 
 try:
     logger.info("Using gevent %s" % gevent.__version__)
 
 try:
     logger.info("Using gevent %s" % gevent.__version__)

-    logger.info("Using psutil %s" % psutil.__version__)
+    logger.info("Usig psutil %s" % psutil.__version__)

     logger.info("Using VLC %s" % VPStuff.vlcclient._vlcver)
     logger.info("Server started.")
     while True:
     logger.info("Using VLC %s" % VPStuff.vlcclient._vlcver)
     logger.info("Server started.")
     while True:

+

         if not isRunning(VPStuff.vlc):
         if not isRunning(VPStuff.vlc):

+

             del VPStuff.vlc
             if spawnVLC(VPStuff.vlcProc, VPConfig.vlcspawntimeout) and connectVLC():
                 logger.info("VLC died, respawned it with pid " + str(VPStuff.vlc.pid))
             del VPStuff.vlc
             if spawnVLC(VPStuff.vlcProc, VPConfig.vlcspawntimeout) and connectVLC():
                 logger.info("VLC died, respawned it with pid " + str(VPStuff.vlc.pid))


@@ -543,7 +581,18 @@ try:
                 logger.error("Cannot spawn VLC!")
                 clean_proc()
                 sys.exit(1)
                 logger.error("Cannot spawn VLC!")
                 clean_proc()
                 sys.exit(1)

+

         # Return to our server tasks
         server.handle_request()
         # Return to our server tasks
         server.handle_request()

+
+        if VPStuff.vlcerrors>5:
+            if restartVLC(VPStuff.vlcProc, VPConfig.vlcspawntimeout):
+                logger.info("VLC hung, respawned it with pid " + str(VPStuff.vlc.pid))
+            else:
+                logger.error("Cannot spawn VLC!")
+                clean_proc()
+                sys.exit(1)
+                                                                

 except (KeyboardInterrupt, SystemExit):
 except (KeyboardInterrupt, SystemExit):

+    sched.shutdown()

     shutdown()
     shutdown()