Can send image through HTTP

main.py

@@ -28,6 +28,7 @@ from datetime import datetime, timedelta
 import io
 import locale
 import logging
+import math
 import os.path
 import time
 
@@ -46,8 +47,13 @@ class WidgetPlacement:
         self.position = position
         self.kwargs = kwargs
 
+def byteToStr(v):
+    return chr((v & 0xF) + 97) + chr(((v >> 4) & 0xF) + 97)
 
-def main(only_on_coming_evt=False, ignore_module=[], force_coming_event=True, expand_alerts=False, **config_args):
+def wordToStr(v):
+    return byteToStr(v & 0xFF) + byteToStr((v >> 8) & 0xFF)
+
+def main(only_on_coming_evt=False, ignore_module=[], force_coming_event=True, expand_alerts=False, send_to=None, **config_args):
     image = Image.new('1', (480, 800), 255)
     #image = Image.new('L', (480, 800), 'white')
     draw = ImageDraw.Draw(image)
@@ -188,6 +194,28 @@ def main(only_on_coming_evt=False, ignore_module=[], force_coming_event=True, ex
     )
 
     logging.info("image generated")
+    if send_to is not None:
+        import urllib.request
+
+        def do_req(url):
+            with urllib.request.urlopen(url, b""):
+                pass
+
+        do_req(send_to + "EPDw_")
+        pixels = image.load()
+        width, height = image.size
+        buf = [0xFF] * (int(width/8) * height)
+        for y in range(height):
+            for x in range(width):
+                if pixels[x, y] == 0:
+                    buf[int((y + (width - x - 1) * height) / 8)] &= ~(0x80 >> (y % 8))
+        for i in range(math.ceil(len(buf) / 500)):
+            data = ''.join([byteToStr(b) for b in buf[500*i:500*(i+1)]])
+            size = wordToStr(len(data))
+            do_req(send_to + data + size + "LOAD_")
+        do_req(send_to + "SHOW_")
+
+    else:
         try:
             import epd7in5
 
@@ -220,6 +248,7 @@ if __name__ == '__main__':
                     help='How many minutes to keep the infos in cache')
     parser.add_argument('--max-cache-timeout', type=int, default=120,
                     help='Maximum time to serve the infos in cache in case of issue')
+    parser.add_argument('--send-to', help='Send the request to a HTTP server')
 
     args = parser.parse_args()
 
@@ -230,4 +259,5 @@ if __name__ == '__main__':
         args.expand_alerts,
         cache_timeout=args.cache_timeout,
         max_cache_timeout=args.max_cache_timeout,
+        send_to=args.send_to,
     )