Improve error handling

handler.py

@@ -35,7 +35,11 @@ if __name__ == "__main__":
 
     args = parser.parse_args()
 
-    handler = parse_url(args.url)
-    image = handler(args.url, args.rotation or [0,0,0], args.resolution or [3840, 1920])
+    try:
+        handler = parse_url(args.url)
+        image = handler(args.url, args.rotation or [0,0,0], args.resolution or [3840, 1920])
 
-    image.save(args.output + "/" + args.title + ".png")
+        image.save(args.output + "/" + args.title + ".png")
+    except Exception as e:
+        with open(args.output + "/" + args.title + ".err", "w") as errorfile:
+            errorfile.write("")

server/daemon.py

@@ -6,6 +6,8 @@ import uuid
 import configparser
 import os
 import glob
+import hashlib
+import time
 
 HTTP200 = "200 OK"
 HTTP202 = "202 Accepted"
@@ -90,12 +92,22 @@ def getjob(req):
     jobid = req.path[-1]
     content_disposition = None
 
-    if glob.glob("/tmp/panosteal/%s---*" % jobid): 
-        content = open(glob.glob("/tmp/panosteal/%s---*" % jobid)[0], "rb").read()
+    found = glob.glob("/tmp/panosteal/%s---*" % jobid)
+
+    if found:
+        md5 = "Not happening."
+        while True:
+            content = open(found[0], "rb").read()
+            newmd5 = hashlib.md5(content).hexdigest()
+            if newmd5 == md5:
+                break
+            md5 = newmd5
+            time.sleep(0.5)
+
         code = HTTP200
         ctype = mimetypes.guess_type("any.png")[0]
-        content_disposition = glob.glob("/tmp/panosteal/%s---*" % jobid)[0].split("---")[-1]
-    elif os.path.isfile("/tmp/panosteal/%s.err" % jobid):
+        content_disposition = found[0].split("---")[-1]
+    elif glob.glob("/tmp/panosteal/%s*err" % jobid):
         content = "<h1>500 Internal Server Error</h1>".encode()
         code = HTTP500
         ctype = HTML
@@ -106,7 +118,7 @@ def getjob(req):
     else:
         content = "".encode()
         code = HTTP202
-        ctype = HTML
+        ctype = TEXT
 
     res = Response(code, ctype, content)
 

server/hallmonitor.py

@@ -27,7 +27,6 @@ class createHandler(pyinotify.ProcessEvent):
             try:
                 handleIncoming(event.pathname)
             except Exception as e:
-                raise
                 with open(event.pathname + ".err", "w") as errorfile:
                     errorfile.write("")
                 print(e)