WIP on the server

Pipfile

@@ -9,6 +9,9 @@ coloredlogs = "*"
 boto3 = "*"
 PyYAML = "*"
 SQLAlchemy = "*"
+httpagentparser = "*"
+geoip2 = "*"
+ink-extensions = "*"
 
 [dev-packages]
 

Pipfile.lock

@@ -1,7 +1,7 @@
 {
     "_meta": {
         "hash": {
-            "sha256": "2ecd89c76c2fb319746f9616100668ec8f556d502ec72fe2644bc5b491307fa7"
+            "sha256": "860fb04e54e9877d9409d7e4853e80ab3d7c0bee9fe3a538d99a73f460dc363d"
         },
         "pipfile-spec": 6,
         "requires": {
@@ -21,18 +21,32 @@
         },
         "boto3": {
             "hashes": [
-                "sha256:839285fbd6f3ab16170af449ae9e33d0eccf97ca22de17d9ff68b8da2310ea06",
-                "sha256:d93f1774c4bc66e02acdda2067291acb9e228a035435753cb75f83ad2904cbe3"
+                "sha256:2edee79d0e78c08b6d14d4dd91c0e4b3438dd4c90c859f06a397268b1cac17b2",
+                "sha256:3cd2078144c10417eb04e4bb263ea8e50a21c4aceafb52db33e3fe71e73b48aa"
             ],
             "index": "pypi",
-            "version": "==1.9.253"
+            "version": "==1.10.0"
         },
         "botocore": {
             "hashes": [
-                "sha256:3baf129118575602ada9926f5166d82d02273c250d0feb313fc270944b27c48b",
-                "sha256:dc080aed4f9b220a9e916ca29ca97a9d37e8e1d296fe89cbaeef929bf0c8066b"
+                "sha256:507b8f13583a64ec2c9c112ff6e3dd8b548060adc7e1f57f25fda9fa34c2dfdb",
+                "sha256:c4b2ffb0f6ed7169beb260485bf5a42ee72a0a02f49f48b0557ed5e32bcf9e79"
             ],
-            "version": "==1.12.253"
+            "version": "==1.13.0"
+        },
+        "certifi": {
+            "hashes": [
+                "sha256:e4f3620cfea4f83eedc95b24abd9cd56f3c4b146dd0177e83a21b4eb49e21e50",
+                "sha256:fd7c7c74727ddcf00e9acd26bba8da604ffec95bf1c2144e67aff7a8b50e6cef"
+            ],
+            "version": "==2019.9.11"
+        },
+        "chardet": {
+            "hashes": [
+                "sha256:84ab92ed1c4d4f16916e05906b6b75a6c0fb5db821cc65e70cbd64a3e2a5eaae",
+                "sha256:fc323ffcaeaed0e0a02bf4d117757b98aed530d9ed4531e3e15460124c106691"
+            ],
+            "version": "==3.0.4"
         },
         "coloredlogs": {
             "hashes": [
@@ -50,6 +64,21 @@
             ],
             "version": "==0.15.2"
         },
+        "geoip2": {
+            "hashes": [
+                "sha256:a37ddac2d200ffb97c736da8b8ba9d5d8dc47da6ec0f162a461b681ecac53a14",
+                "sha256:f7ffe9d258e71a42cf622ce6350d976de1d0312b9f2fbce3975c7d838b57ecf0"
+            ],
+            "index": "pypi",
+            "version": "==2.9.0"
+        },
+        "httpagentparser": {
+            "hashes": [
+                "sha256:23805523b61b04b9412cd98cd1fe0415401045fd5447d3b62a02ae60d22814ed"
+            ],
+            "index": "pypi",
+            "version": "==1.9.0"
+        },
         "humanfriendly": {
             "hashes": [
                 "sha256:23057b10ad6f782e7bc3a20e3cb6768ab919f619bbdc0dd75691121bbde5591d",
@@ -57,6 +86,21 @@
             ],
             "version": "==4.18"
         },
+        "idna": {
+            "hashes": [
+                "sha256:c357b3f628cf53ae2c4c05627ecc484553142ca23264e593d327bcde5e9c3407",
+                "sha256:ea8b7f6188e6fa117537c3df7da9fc686d485087abf6ac197f9c46432f7e4a3c"
+            ],
+            "version": "==2.8"
+        },
+        "ink-extensions": {
+            "hashes": [
+                "sha256:0157737f30063e48bbfb45beeef0545b01bb7d9b182b3f39695e9411f4d029eb",
+                "sha256:76e6e460307c96b05995790f30207fc1cc0f42d8795a4bb7b34cd2476f5ab70b"
+            ],
+            "index": "pypi",
+            "version": "==1.0.2"
+        },
         "jmespath": {
             "hashes": [
                 "sha256:3720a4b1bd659dd2eecad0666459b9788813e032b83e7ba58578e48254e0a0e6",
@@ -64,6 +108,39 @@
             ],
             "version": "==0.9.4"
         },
+        "lxml": {
+            "hashes": [
+                "sha256:02ca7bf899da57084041bb0f6095333e4d239948ad3169443f454add9f4e9cb4",
+                "sha256:096b82c5e0ea27ce9138bcbb205313343ee66a6e132f25c5ed67e2c8d960a1bc",
+                "sha256:0a920ff98cf1aac310470c644bc23b326402d3ef667ddafecb024e1713d485f1",
+                "sha256:17cae1730a782858a6e2758fd20dd0ef7567916c47757b694a06ffafdec20046",
+                "sha256:17e3950add54c882e032527795c625929613adbd2ce5162b94667334458b5a36",
+                "sha256:1f4f214337f6ee5825bf90a65d04d70aab05526c08191ab888cb5149501923c5",
+                "sha256:2e8f77db25b0a96af679e64ff9bf9dddb27d379c9900c3272f3041c4d1327c9d",
+                "sha256:4dffd405390a45ecb95ab5ab1c1b847553c18b0ef8ed01e10c1c8b1a76452916",
+                "sha256:6b899931a5648862c7b88c795eddff7588fb585e81cecce20f8d9da16eff96e0",
+                "sha256:726c17f3e0d7a7200718c9a890ccfeab391c9133e363a577a44717c85c71db27",
+                "sha256:760c12276fee05c36f95f8040180abc7fbebb9e5011447a97cdc289b5d6ab6fc",
+                "sha256:796685d3969815a633827c818863ee199440696b0961e200b011d79b9394bbe7",
+                "sha256:891fe897b49abb7db470c55664b198b1095e4943b9f82b7dcab317a19116cd38",
+                "sha256:a471628e20f03dcdfde00770eeaf9c77811f0c331c8805219ca7b87ac17576c5",
+                "sha256:a63b4fd3e2cabdcc9d918ed280bdde3e8e9641e04f3c59a2a3109644a07b9832",
+                "sha256:b0b84408d4eabc6de9dd1e1e0bc63e7731e890c0b378a62443e5741cfd0ae90a",
+                "sha256:be78485e5d5f3684e875dab60f40cddace2f5b2a8f7fede412358ab3214c3a6f",
+                "sha256:c27eaed872185f047bb7f7da2d21a7d8913457678c9a100a50db6da890bc28b9",
+                "sha256:c81cb40bff373ab7a7446d6bbca0190bccc5be3448b47b51d729e37799bb5692",
+                "sha256:d11874b3c33ee441059464711cd365b89fa1a9cf19ae75b0c189b01fbf735b84",
+                "sha256:e9c028b5897901361d81a4718d1db217b716424a0283afe9d6735fe0caf70f79",
+                "sha256:fe489d486cd00b739be826e8c1be188ddb74c7a1ca784d93d06fda882a6a1681"
+            ],
+            "version": "==4.4.1"
+        },
+        "maxminddb": {
+            "hashes": [
+                "sha256:449a1713d37320d777d0db286286ab22890f0a176492ecf3ad8d9319108f2f79"
+            ],
+            "version": "==1.5.1"
+        },
         "python-dateutil": {
             "hashes": [
                 "sha256:7e6584c74aeed623791615e26efd690f29817a27c73085b78e4bad02493df2fb",
@@ -91,6 +168,13 @@
             "index": "pypi",
             "version": "==5.1.2"
         },
+        "requests": {
+            "hashes": [
+                "sha256:11e007a8a2aa0323f5a921e9e6a2d7e4e67d9877e85773fba9ba6419025cbeb4",
+                "sha256:9cf5292fcd0f598c671cfc1e0d7d1a7f13bb8085e9a590f48c010551dc6c4b31"
+            ],
+            "version": "==2.22.0"
+        },
         "s3transfer": {
             "hashes": [
                 "sha256:6efc926738a3cd576c2a79725fed9afde92378aa5c6a957e3af010cb019fac9d",
@@ -130,7 +214,6 @@
                 "sha256:3de946ffbed6e6746608990594d08faac602528ac7015ac28d33cee6a45b7398",
                 "sha256:9a107b99a5393caf59c7aa3c1249c16e6879447533d0887f4336dde834c7be86"
             ],
-            "markers": "python_version >= '3.4'",
             "version": "==1.25.6"
         }
     },

README.md

@@ -0,0 +1,22 @@
+## Webserver
+
+Webserver is published to the web trough ssh remote forward. In /etc/ssh/sshd_config set `GatewayPorts yes`.
+
+Then start `autossh` to maintain the connection:
+
+```bash
+autossh -M 0 -o "ServerAliveInterval 30" -o "ServerAliveCountMax 3" -R 8888:localhost:8888 here.rubenvandeven.com
+```
+
+
+To resolve the country the (imprecise) GeoLite2 Free Country dataset is used. Download it [from MaxMind](https://dev.maxmind.com/geoip/geoip2/geolite2/) and store it in the project root folder.
+
+
+
+## Scanning
+
+For scanning run visudo and add to the sudoers file:
+
+```
+mt	ALL=(ALL) NOPASSWD: /usr/bin/scanimage
+```

sorteerhoed/HITStore.py

@@ -42,7 +42,7 @@ class HIT(Base):
     hit_id = Column(String(255)) # amazon's hit id
     created_at = Column(DateTime, default=datetime.datetime.now())
     updated_at = Column(DateTime, default=datetime.datetime.now())
-    uniqid = Column(String(32), default=uuid.uuid4().hex)
+    uuid = Column(String(32), default=lambda : uuid.uuid4().hex)
     assignment_id = Column(String(255), default = None)
     worker_id = Column(String(255), default = None)
     accept_time = Column(DateTime, default=None)
@@ -56,38 +56,73 @@ class HIT(Base):
     turk_screen_height = Column(Integer, default = None)
     
     
+    def getImagePath(self):
+        return os.path.join('www', self.getImageUrl())
+    
+    def getImageUrl(self):
+        return f"scans/{self.id}.png"
+
+
 class Store:
     def __init__(self, db_filename, logLevel=0):
         path = os.path.abspath(db_filename)
         if logLevel <= logging.DEBUG:
             logging.getLogger('sqlalchemy.engine').setLevel(logging.INFO)
             
-        self.engine = create_engine('sqlite:///'+path, echo=False)
+        self.engine = create_engine('sqlite:///'+path, echo=False, connect_args={'check_same_thread': False})
         Base.metadata.create_all(self.engine)
         self.Session = sessionmaker(bind=self.engine)
+        self.session = self.Session()
     
     @contextmanager
     def getSession(self):
         """Provide a transactional scope around a series of operations."""
-        session = self.Session()
         try:
-            yield session
-            session.commit()
+            yield self.session
+            self.session.commit()
         except:
-            session.rollback()
+            self.session.rollback()
             raise
-        finally:
-            session.close()
     
     def getHits(self, session):
-        return session.query(Source).order_by(HIT.created_at.desc())
+        return self.session.query(Source).order_by(HIT.created_at.desc())
+        
+    def getHitById(self, hitId):
+        return self.session.query(HIT).\
+          filter(HIT.id==hitId).one()
+    
+    def getHitByRemoteId(self, amazonHitId):
+        return self.session.query(HIT).\
+          filter(HIT.hit_id==amazonHitId).one()
+          
+    
+    def getLastSubmittedHit(self):
+        return self.session.query(HIT).\
+          filter(HIT.submit_page_at!=None).\
+          order_by(HIT.submit_page_at.desc()).first()
+    
+    def createHIT(self):
+        with self.getSession() as s:
+            hit = HIT()
+            s.add(hit)
+            s.flush()
+            s.refresh(hit)
+            logger.info(f"Created HIT {hit.id}")
+        return hit
+            
+    def saveHIT(self, hit):
+        with self.getSession() as s:
+            logger.info(f"Updating hit! {hit.id}")
+#             s.flush()
     
     def addHIT(self, hit: HIT):
         with self.getSession() as s:
             s.add(hit)
             s.flush()
             s.refresh(hit)
-            logging.info(f"Added {hit.id}")
+            logger.info(f"Added {hit.id}")
+    
+    
     
 #     def rmSource(self, id: int):
 #         with self.getSession() as session:

sorteerhoed/Signal.py

@@ -5,6 +5,9 @@ class Signal:
     Named 'signal' to avoid confusion with threading.Event
     """
     
-    def __init__(self, name: str, params: dict):
+    def __init__(self, name: str, params: dict = None):
         self.name = name
         self.params = params
+        
+    def __repr__(self):
+        return f"<Signal {self.name}: {self.params}>"

sorteerhoed/central_management.py

@@ -11,6 +11,10 @@ import queue
 from sorteerhoed.sqs import SqsListener
 from sorteerhoed.webserver import Server
 import time
+from sorteerhoed.Signal import Signal
+import io
+from PIL import Image
+import datetime
 
 
 class CentralManagement():
@@ -67,27 +71,30 @@ class CentralManagement():
             
             self.logger.info(f"Mechanical turk: {self.mturk.get_account_balance()}")
             
-            
-            
             self.sqs = SqsListener(self.config, self.eventQueue, self.isRunning)
-            sqsThread = threading.Thread(target=self.sqs.start)
+            sqsThread = threading.Thread(target=self.sqs.start, name='sqs')
             sqsThread.start()
             
             # the plotter itself
             self.plotter = Plotter(self.config, self.eventQueue, self.isRunning)
-            plotterThread = threading.Thread(target=self.plotter.start)
+            plotterThread = threading.Thread(target=self.plotter.start, name='plotter')
             plotterThread.start()
             
             # webserver for turks and status
-            self.server = Server(self.config, self.eventQueue, self.isRunning, self.plotter.q)
-            serverThread = threading.Thread(target=self.server.start)
+            self.server = Server(self.config, self.eventQueue, self.isRunning, self.plotter.q, self.store)
+            serverThread = threading.Thread(target=self.server.start, name='server')
             serverThread.start()
             
             # event listener:
-            dispatcherThread = threading.Thread(target=self.eventListener)
+            dispatcherThread = threading.Thread(target=self.eventListener, name='dispatcher')
             dispatcherThread.start()
+#             
+#             
             
-            self.makeHit()
+            self.eventQueue.put(Signal('start', {'ding':'test'}))
+            
+            while self.isRunning.is_set():
+                time.sleep(.5)
             
         finally:
             self.isRunning.clear()
@@ -111,19 +118,55 @@ class CentralManagement():
                 - Plotter complete
                 - 
                 """
-                print(signal)
+                #TODO: make level debug()
+                self.logger.warn(f"SIGNAL: {signal}")
+                if signal.name == 'start':
+                    self.makeHit()
+                    pass
+                elif signal.name == 'hit.scanned':
+                    # TODO: wrap up hit & make new HIT
+                    pass
+                elif signal.name == 'hit.info':
+                    if signal.params['hit_id'] != self.currentHit.id:
+                        self.logger.warning(f"hit.info hit_id != currenthit.id: {signal}")
+                        continue
+                    for name, value in enumerate(signal.params):
+                        self.logger.debug(f'Set status: {name} to {value}')
+                        self.server.statusPage.set(name, value)
+                elif signal.name == 'server.submit':
+                    self.currentHit.submit_page_at = datetime.datetime.now()
+                    self.store.saveHIT(self.currentHit)
+                    self.plotter.park()
+                    # park should alway triggers a plotter.finished after being processed
+                elif signal.name == 'sqs.AssignmentAccepted':
+                    # {'event': {'HITGroupId': '301G7MYOAJ85NEW128ZDGF5DSBW53S', 'EventType': 'AssignmentAccepted', 'EventTimestamp': '2019-10-23T20:16:10Z', 'HITId': '3IH9TRB0FBAKKZFP3JUD6D9YWQ1I1F', 'AssignmentId': '3BF51CHDTWLN3ZGHRKDUHFKPWIJ0H3', 'WorkerId': 'A1CK46PK9VEUH5', 'HITTypeId': '3EYXOXDEN7RX0YSMN4UMVN01AYKZJ0'}}
+                    pass
+                elif signal.name == 'sqs.AssignmentAbandoned':
+                    #{'event': {'HITGroupId': '301G7MYOAJ85NEW128ZDGF5DSBW53S', 'EventType': 'AssignmentAbandoned', 'EventTimestamp': '2019-10-23T20:23:06Z', 'HITId': '3JHB4BPSFKKFQ263K4EFULI3LC79QJ', 'AssignmentId': '3U088ZLJVL450PB6MJZUIIUCB6VW0Y', 'WorkerId': 'A1CK46PK9VEUH5', 'HITTypeId': '3EYXOXDEN7RX0YSMN4UMVN01AYKZJ0'}}
+                    pass
+                elif signal.name == 'sqs.AssignmentReturned':
+                    # {'event': {'HITGroupId': '301G7MYOAJ85NEW128ZDGF5DSBW53S', 'EventType': 'AssignmentReturned', 'EventTimestamp': '2019-10-23T20:16:47Z', 'HITId': '3IH9TRB0FBAKKZFP3JUD6D9YWQ1I1F', 'AssignmentId': '3BF51CHDTWLN3ZGHRKDUHFKPWIJ0H3', 'WorkerId': 'A1CK46PK9VEUH5', 'HITTypeId': '3EYXOXDEN7RX0YSMN4UMVN01AYKZJ0'}}
+                    pass
+                elif signal.name == 'sqs.AssignmentSubmitted':
+                    pass
+                elif signal.name == 'plotter.finished':
+                    if self.currentHit.submit_page_at:
+                        # TODO: scan!
+                        pass
+                elif signal.name == '':
+                    pass
+                    
                 # handle singals/events:
                 # TODO: next steps
                 # TODO: update status
                 
     
     def makeHit(self):
-        self.currentHit = HITStore.HIT()
-        self.store.addHIT(self.currentHit)
+        self.currentHit = self.store.createHIT()
         
-        self.logger(f"Make HIT {self.currentHit.id}")
+        self.logger.info(f"Make HIT {self.currentHit.id}")
         
-        question = open(self.config['amazon']['task_xml'], mode='r').read().replace("{HIT_NR}",self.currentHit.id)
+        question = open(self.config['amazon']['task_xml'], mode='r').read().replace("{HIT_NR}",str(self.currentHit.id))
         new_hit = self.mturk.create_hit(
             Title = 'Trace the drawn line',
             Description = 'Draw a line over the sketched line in the image',
@@ -136,12 +179,11 @@ class CentralManagement():
             Question = question,
         )
          
-        self.logger.info("Created hit:", new_hit)
+        self.logger.info(f"Created hit: {new_hit}")
         self.logger.info("https://workersandbox.mturk.com/mturk/preview?groupId=" + new_hit['HIT']['HITGroupId'])
         
         self.currentHit.hit_id = new_hit['HIT']['HITId']
-        
-        print(self.currentHit)
+        self.store.saveHIT(self.currentHit)
         
     #     mturk.send_test_event_notification()
         if self.config['amazon']['sqs_url']:
@@ -175,10 +217,18 @@ class CentralManagement():
         Run scanimage on scaner and returns a string with the filename
         """
         cmd = [
-            'sudo', 'scanimage'
+            'sudo', 'scanimage', '-d', 'epkowa'
         ]
-        filename = ""
+        filename = self.currentHit.getImagePath()
         proc = subprocess.Popen(cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
-        o, e = proc.communicate(60)
+        # opens connection to scanner, but only starts scanning when output becomes ready:
+        o, e = proc.communicate(80)
+        if e:
+            self.logger.critical(f"Scanner caused: {e.decode()}")
+            
+        f = io.BytesIO(o)
+        img = Image.open(f)
+        img.save(filename)
+        
+        self.eventQueue.put(Signal('hit.scanned', {'hit_id':self.currentHit.id}))
         
-        exec

sorteerhoed/plotter.py

@@ -14,6 +14,16 @@ class Plotter:
         self.isRunning = runningEvent
         self.logger = logging.getLogger("sorteerhoed").getChild("plotter")
         
+    def park(self):
+        self.logger.info("Queue to park plotter")
+        
+        if self.config['dummy_plotter']:
+            # fastest way home :-)
+            self.q.put([0,0,0])
+        else:
+            # TODO: find a nice way to park the axidraw in the 0 position
+            self.q.put([0,0,0])
+        
     def start(self):
         self.axiDrawCueListener()
 
@@ -31,24 +41,24 @@ class Plotter:
                         self.eventQ.put(Signal('plotter.finished'))
                 else:
                     time.sleep(.05)
-                    self.logging.debug(f'Dummy plotter move: {move}')
+                    self.logger.debug(f'Dummy plotter move: {move}')
             self.logger.info("Stopping dummy plotter")
         else:
-            ad = axidraw.AxiDraw()
+            self.ad = axidraw.AxiDraw()
             
-            ad.interactive()
+            self.ad.interactive()
             
-            connected = ad.connect()
+            connected = self.ad.connect()
             if not connected:
                 raise Exception("Cannot connect to Axidraw")
             try:
-                ad.options.units = 1 # set to use centimeters instead of inches
-                ad.options.accel = 100;
-                ad.options.speed_penup = 100
-                ad.options.speed_pendown = 100
-                ad.options.model = 2 # A3, set to 1 for A4
+                self.ad.options.units = 1 # set to use centimeters instead of inches
+                self.ad.options.accel = 100;
+                self.ad.options.speed_penup = 100
+                self.ad.options.speed_pendown = 100
+                self.ad.options.model = 1 # A3, set to 1 for A4
                 
-                ad.moveto(0,0)
+                self.ad.moveto(0,0)
                 
                 plotterWidth = 22
                 plotterHeight = 18 # 16?
@@ -65,14 +75,14 @@ class Plotter:
                             plotterRan = False
                             self.eventQ.put(Signal('plotter.finished'))
                     else:
-                        ad.moveto(move[0]* plotterWidth, move[1]*plotterHeight)
-                        self.logging.debug(f'handler! {move}')
+                        self.ad.moveto(move[0]* plotterWidth, move[1]*plotterHeight)
+                        self.logger.debug(f'handler! {move}')
             except Exception as e:
                 self.logger.exception(e)
             finally:
                 self.logger.warning("Close Axidraw connection")
-                ad.moveto(0,0)
-                ad.disconnect()
+                self.ad.moveto(0,0)
+                self.ad.disconnect()
                 
                 # send shutdown signal (if not already set)
                 self.isRunning.clear()

sorteerhoed/sqs.py

@@ -4,6 +4,7 @@ from threading import Event
 import logging
 import time
 from sorteerhoed.Signal import Signal
+import json
 
 class SqsListener:
     def __init__(self, config, eventQ: Queue, runningEvent: Event):
@@ -29,14 +30,18 @@ class SqsListener:
             if 'Messages' in messages: # when the queue is exhausted, the response dict contains no 'Messages' key
                 for message in messages['Messages']: # 'Messages' is a list
                     # process the messages
-                    self.debug(f"received: {message}")
+                    self.logger.info(f"received: {message}")
                     try:
-                        for event in message['Body']['Events']:
+                        body = json.loads(message['Body'])
+#                         self.logger.critical(f"Try: {body['Events']}")
+                        for event in body['Events']:
+#                             self.logger.warning(f"{event}")
                             self.eventQ.put(Signal(
                                 f"sqs.{event['EventType']}",
                                 {'event': event}
                             ))
-                    except Exception:
+                    except Exception as e:
+                        self.logger.exception(e)
                         pass
                     # next, we delete the message from the queue so no one else will process it again
                     sqs.delete_message(

sorteerhoed/webserver.py

@@ -1,4 +1,3 @@
-import argparse
 import json
 import logging
 import os
@@ -8,15 +7,13 @@ import tornado.websocket
 from urllib.parse import urlparse
 import uuid
 
-import coloredlogs
-import glob
-
-from pyaxidraw import axidraw   # import module
 from threading import Thread, Event
 from queue import Queue, Empty
-import threading
-from server_test import generated_image_dir
 import asyncio
+from sorteerhoed import HITStore
+from sorteerhoed.Signal import Signal
+import httpagentparser
+import geoip2.database
 
 
 logger = logging.getLogger("sorteerhoed").getChild("webserver")
@@ -33,9 +30,12 @@ class WebSocketHandler(tornado.websocket.WebSocketHandler):
     CORS_ORIGINS = ['localhost', '.mturk.com', 'here.rubenvandeven.com']
     connections = set()
     
-    def initialize(self, draw_q: Queue, generated_image_dir: str):
-        self.draw_q = draw_q
-        self.generated_image_dir = generated_image_dir
+    def initialize(self, config, plotterQ: Queue, eventQ: Queue, store: HITStore, geoip_reader: geoip2.database.Reader):
+        self.config = config
+        self.plotterQ = plotterQ
+        self.eventQ = eventQ
+        self.store = store
+        self.geoip_reader = geoip_reader
 
     def check_origin(self, origin):
         parsed_origin = urlparse(origin)
@@ -46,8 +46,29 @@ class WebSocketHandler(tornado.websocket.WebSocketHandler):
     # the client connected
     def open(self, p = None):
         self.__class__.connections.add(self)
-        logger.info(f"New client connected: {self.request.remote_ip}")
+        hit_id = self.get_query_argument('id')
+        self.hit = self.store.getHitById(hit_id)
+        
+        if self.hit.submit_hit_at:
+            raise Exception("Opening websocket for already submitted hit")
+        
+        logger.info(f"New client connected: {self.request.remote_ip} for {self.hit.id}/{self.hit.hit_id}")
+        self.eventQ.put(Signal('hit.info', dict(hit_id=self.hit.id, ip=self.request.remote_ip)))
         self.strokes = []
+        
+        
+        ua = self.request.headers.get('User-Agent', None)
+        if ua:
+            ua_info = httpagentparser.detect(ua)
+            self.eventQ.put(Signal('hit.info', dict(hit_id=self.hit.id, os=ua_info['os']['name'], browser=ua_info['browser']['name'])))
+        try:
+            geoip = self.geoip_reader.country(self.request.remote_ip)
+            logger.info(f"Geo {geoip}")
+            self.eventQ.put(Signal('hit.info', dict(hit_id=self.hit.id, location=geoip.country.name)))
+        except Exception as e:
+            logger.exception(e)
+            logger.info("No geo IP possible")
+            self.eventQ.put(Signal('hit.info', dict(hit_id=self.hit.id, location='Unknown')))
 #         self.write_message("hello!")
 
     # the client sent the message
@@ -60,7 +81,7 @@ class WebSocketHandler(tornado.websocket.WebSocketHandler):
                 # TODO: min/max input
                 point = [float(msg['direction'][0]),float(msg['direction'][1]), bool(msg['mouse'])]
                 self.strokes.append(point)
-                self.draw_q.put(point)
+                self.plotterQ.put(point)
                 
             elif msg['action'] == 'up':
                 logger.info(f'up: {msg}')
@@ -68,7 +89,7 @@ class WebSocketHandler(tornado.websocket.WebSocketHandler):
                 self.strokes.append(point)
                 
             elif msg['action'] == 'submit':
-                logger.info(f'up: {msg}')
+                logger.info(f'submit: {msg}')
                 id = self.submit_strokes()
                 if not id:
                     self.write_message(json.dumps('error'))
@@ -76,11 +97,19 @@ class WebSocketHandler(tornado.websocket.WebSocketHandler):
                 
                 self.write_message(json.dumps({
                     'action': 'submitted',
-                    'msg': f"Submission ok, please refer to your submission as: {id}"
+                    'msg': f"Submission ok, please refer to your submission as: {self.hit.uuid}"
                     }))
+                
             elif msg['action'] == 'down':
                 # not used, implicit in move?
                 pass
+            elif msg['action'] == 'info':
+                self.eventQ.put(Signal('hit.info', dict(
+                    hit_id=self.hit.id,
+                    resolution=msg['resolution'],
+                    browser=msg['browser']
+                )))
+                pass
             else:
                 # self.send({'alert': 'Unknown request: {}'.format(message)})
                 logger.warn('Unknown request: {}'.format(message))
@@ -98,28 +127,32 @@ class WebSocketHandler(tornado.websocket.WebSocketHandler):
         if len(self.strokes) < 1:
             return False
         
-        d = strokes2D(self.strokes)
-        svg = f"""<?xml version="1.0" encoding="UTF-8" standalone="no"?>
-        <svg viewBox="0 0 600 600"
-       xmlns:dc="http://purl.org/dc/elements/1.1/"
-       xmlns:cc="http://creativecommons.org/ns#"
-       xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
-       xmlns:svg="http://www.w3.org/2000/svg"
-       xmlns="http://www.w3.org/2000/svg"
-       version="1.1"
-        >
-        <path d="{d}" style="stroke:black;stroke-width:2;fill:none;" />
-        </svg>
-        """
+        self.eventQ.put(Signal("server.submit", dict(hit_id = self.hit.id)))
         
-        id = uuid.uuid4().hex
+        if self.config['dummy_plotter']:
+            d = strokes2D(self.strokes)
+            svg = f"""<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+            <svg viewBox="0 0 600 600"
+           xmlns:dc="http://purl.org/dc/elements/1.1/"
+           xmlns:cc="http://creativecommons.org/ns#"
+           xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+           xmlns:svg="http://www.w3.org/2000/svg"
+           xmlns="http://www.w3.org/2000/svg"
+           version="1.1"
+            >
+            <path d="{d}" style="stroke:black;stroke-width:2;fill:none;" />
+            </svg>
+            """
             
-        filename = os.path.join(self.generated_image_dir , id+'.svg')
-        with open(filename, 'w') as fp:
-            logger.info(f"Wrote {filename}")
-            fp.write(svg)
+            filename = self.hit.getImagePath()
+            logger.info(f"Write to {filename}")
+            with open(filename, 'w') as fp:
+                fp.write(svg)
         
-        return id
+            # we fake a hit.scanned event
+            self.eventQ.put(Signal('hit.scanned', {'hit_id':self.hit.id}))
+            
+        return self.hit.uuid
 
     @classmethod
     def rmConnection(cls, client):
@@ -128,21 +161,43 @@ class WebSocketHandler(tornado.websocket.WebSocketHandler):
         cls.connections.remove(client)
 
 
-class LatestImageHandler(tornado.web.RequestHandler):
+class StatusWebSocketHandler(tornado.websocket.WebSocketHandler):
+    CORS_ORIGINS = ['localhost']
+    connections = set()
     
-    def initialize(self, generated_image_dir: str):
-        self.generated_image_dir = generated_image_dir
+    def initialize(self):
+        pass
 
-    def get(self):
-        self.set_header('Cache-Control', 'no-store, no-cache, must-revalidate, max-age=0')
-        self.set_header("Content-Type", "image/svg+xml")
+    def check_origin(self, origin):
+        parsed_origin = urlparse(origin)
+        # parsed_origin.netloc.lower() gives localhost:3333
+        valid = any([parsed_origin.hostname.endswith(origin) for origin in self.CORS_ORIGINS])
+        return valid
 
-        list_of_files = glob.glob(os.path.join(self.generated_image_dir,'*.svg'))
-        latest_file = max(list_of_files, key=os.path.getctime)
-        with open(latest_file, 'r') as fp:
-            self.write(fp.read())
+    # the client connected
+    def open(self, p = None):
+        self.__class__.connections.add(self)
         
     
+    # client disconnected
+    def on_close(self):
+        self.__class__.rmConnection(self)
+        logger.info(f"Client disconnected: {self.request.remote_ip}")
+    
+    @classmethod
+    def rmConnection(cls, client):
+        if client not in cls.connections:
+            return
+        cls.connections.remove(client)
+        
+    @classmethod
+    def update_for_all(cls, prop, value):
+        for connection in cls.connections:
+            connection.write_message(json.dumps({
+                'property': prop,
+                'value': value
+                }))
+        
 def strokes2D(strokes):
     # strokes to a d attribute for a path
     d = "";
@@ -165,7 +220,62 @@ def strokes2D(strokes):
         last_stroke = stroke;
     return d;
 
+class DrawPageHandler(tornado.web.RequestHandler):
+    def initialize(self, store: HITStore, path: str):
+        self.store = store
+        self.path = path
         
+    def get(self):
+        try:
+            hit_id = self.get_query_argument('id')
+            hit = self.store.getHitById(hit_id)
+        except Exception:
+            self.write("HIT not found")
+        else:
+            if hit.submit_page_at:
+                self.write("HIT already submitted")
+                return
+            
+            previous_hit = self.store.getLastSubmittedHit()
+            if not previous_hit:
+                # start with basic svg
+                logger.warning("No previous HIT, start from basic svg")
+                image = "/basic.svg"
+            else:
+                image = previous_hit.getImageUrl()
+                logger.info(f"Image url: {image}")
+                
+            self.set_header("Access-Control-Allow-Origin", "*")
+            contents = open(os.path.join(self.path, 'index.html'), 'r').read().replace("{IMAGE_URL}", image)
+            self.write(contents)
+
+class StatusPage():
+    """
+    Properties for on the status page, which are send over websockets the moment
+    they are altered.
+    """
+    def __init__(self):
+        self.reset()
+        
+    def reset(self):
+        self.hit_id = None
+        self.worker_id = None
+        self.ip = None
+        self.location = None
+        self.browser = None
+        self.os = None
+        self.resolution = None
+        self.state = None
+        self.fee = None
+        self.hit_created = None
+        self.hit_opened = None
+        
+    def __setattr__(self, name, value):
+        self.__dict__[name] =value
+        StatusWebSocketHandler.update_for_all(name, value)
+        
+    def set(self, name, value):
+        return self.__setattr__(name, value)
 
 class Server:
     """
@@ -174,7 +284,7 @@ class Server:
     
     TODO: change to have the HIT_id as param to the page. Load hit from storage with previous image
     """
-    def __init__(self, config, eventQ: Queue, runningEvent: Event, plotterQ: Queue):
+    def __init__(self, config, eventQ: Queue, runningEvent: Event, plotterQ: Queue, store: HITStore):
         self.isRunning = runningEvent
         self.eventQ = eventQ
         self.config = config
@@ -183,19 +293,33 @@ class Server:
         self.plotterQ = plotterQ # communicate directly to plotter (skip main thread)
         
         #self.config['server']['port']
-        self.generated_image_dir = os.path.join('www','generated')
-        self.static_file_dir = os.path.join('www')
+        self.web_root = os.path.join('www')
         
         self.server_loop = None
+        self.store = store
+        self.statusPage = StatusPage()
         
     def start(self):
+        if not os.path.exists('GeoLite2-Country.mmdb'):
+            raise Exception("Please download the GeoLite2 Country database and place the 'GeoLite2-Country.mmdb' file in the project root.")
+        
+        self.geoip_reader = geoip2.database.Reader('GeoLite2-Country.mmdb')
+        
         try:
             asyncio.set_event_loop(asyncio.new_event_loop())
             application = tornado.web.Application([
-                (r"/ws(.*)", WebSocketHandler, {'draw_q': self.plotterQ, 'generated_image_dir': self.generated_image_dir}),
-                (r"/latest.svg", LatestImageHandler, {'generated_image_dir': self.generated_image_dir}), # TODO: have js request the right image, based on a 'start' button. This way we can trace the history of a drawing
+                (r"/ws(.*)", WebSocketHandler, {
+                    'config': self.config,
+                    'plotterQ': self.plotterQ,
+                    'eventQ': self.eventQ,
+                    'store': self.store,
+                    'geoip_reader': self.geoip_reader
+                }),
+                (r"/status/ws", StatusWebSocketHandler),
+                (r"/draw", DrawPageHandler,
+                    dict(store = self.store, path=self.web_root)),
                 (r"/(.*)", StaticFileWithHeaderHandler,
-                    {"path": self.static_file_dir, "default_filename": 'index.html'}),
+                    {"path": self.web_root}),
             ], debug=True, autoreload=False)
             application.listen(self.config['server']['port'])
             self.server_loop = tornado.ioloop.IOLoop.current()

www/basic.svg

@@ -0,0 +1,38 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg
+   xmlns:dc="http://purl.org/dc/elements/1.1/"
+   xmlns:cc="http://creativecommons.org/ns#"
+   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+   xmlns:svg="http://www.w3.org/2000/svg"
+   xmlns="http://www.w3.org/2000/svg"
+   id="svg8"
+   version="1.1"
+   viewBox="0 0 210 210"
+   height="210mm"
+   width="210mm">
+  <defs
+     id="defs2" />
+  <metadata
+     id="metadata5">
+    <rdf:RDF>
+      <cc:Work
+         rdf:about="">
+        <dc:format>image/svg+xml</dc:format>
+        <dc:type
+           rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
+        <dc:title></dc:title>
+      </cc:Work>
+    </rdf:RDF>
+  </metadata>
+  <g
+     transform="translate(0,-87)"
+     id="layer1">
+    <rect
+       y="138.32738"
+       x="51.327381"
+       height="107.34524"
+       width="107.34524"
+       id="rect815"
+       style="fill:none;fill-opacity:1;stroke:white;stroke-width:1;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0.75590557;stroke-opacity:1" />
+  </g>
+</svg>

www/index.html

@@ -33,7 +33,7 @@
             	width: 600px;
             	position: relative;
             	background:#ccc;
-            
+            	cursor: url(cursor.png) 6 6, auto;
             }
             html, body{
             	height: 100%;
@@ -50,7 +50,7 @@
     </ul>
         <div id='interface'>
         	<div id='wrapper'>
-            <img src="/latest.svg" id='sample'>
+            <img src="{IMAGE_URL}" id='sample'>
             <svg id="canvas">
                 <path d="" id="stroke" />
             </svg>
@@ -62,7 +62,7 @@
             <div id='message'></div>
         </div>
         <script type="text/javascript">
-            let url = window.location.origin.replace('http', 'ws') +'/ws';
+            let url = window.location.origin.replace('http', 'ws') +'/ws?' + window.location.search.substring(1);
             let svgEl = document.getElementById("canvas");
             let strokeEl = document.getElementById('stroke');
             let submitEl = document.getElementById('submit');
@@ -78,11 +78,12 @@
                 let pos = svgEl.getBoundingClientRect()
                 let x = e.x - pos['left'];
                 let y = e.y - pos['top'];
-                strokes.push([x, y, 0]);
                 
-                let d = strokes2D(strokes);
-                console.log(d);
-                strokeEl.setAttribute('d', d);
+                if(isDrawing) {
+	                strokes.push([x, y, 0]);
+	                let d = strokes2D(strokes);
+	                strokeEl.setAttribute('d', d);
+                }
 
                 currentPoint = {
                     'action': 'move',

www/status.html

@@ -0,0 +1,9 @@
+<html>
+<head>
+<title>Status</title>
+</head>
+<body>
+Status!
+websocket at /status/ws
+</body>
+</html>