Moved combineImg to own module; created AWS dockerfile; added combination_method config

combineImg/Dockerfile

@@ -0,0 +1,33 @@
+FROM public.ecr.aws/lambda/python:3.8
+RUN yum -y install git && yum clean all
+RUN yum -y install tar gzip zlib freetype-devel \
+    gcc \
+    ghostscript \
+    lcms2-devel \
+    libffi-devel \
+    libimagequant-devel \
+    libjpeg-devel \
+    libraqm-devel \
+    libtiff-devel \
+    libwebp-devel \
+    make \
+    openjpeg2-devel \
+    rh-python36 \
+    rh-python36-python-virtualenv \
+    sudo \
+    tcl-devel \
+    tk-devel \
+    tkinter \
+    which \
+    xorg-x11-server-Xvfb \
+    zlib-devel \
+    && yum clean all
+RUN pip install -U --force-reinstall pillow-simd
+RUN pip install requests
+
+
+# Copy function code
+COPY __init__.py ${LAMBDA_TASK_ROOT}/app.py
+
+# Set the CMD to your handler (could also be done as a parameter override outside of the Dockerfile)
+CMD [ "app.lambda_handler" ] 

combineImg/__init__.py

@@ -1,6 +1,10 @@
+import json
+from weakref import finalize
 from PIL import Image, ImageOps, ImageFilter
 import requests
 from io import BytesIO
+import io
+import base64
 
 # find the highest res image in an array of images
 def findImageWithMostPixels(imageArray):
@@ -83,6 +87,7 @@ def genImage(imageArray):
     combinedBG = blurImage(combinedBG,50)
     finalImg = Image.alpha_composite(combinedBG,combined)
     finalImg = ImageOps.pad(finalImg, findImageWithMostPixels(imageArray).size,color=(0, 0, 0, 0))
+    finalImg = finalImg.convert('RGB')
     return finalImg
 
 def genImageFromURL(urlArray):
@@ -93,3 +98,20 @@ def genImageFromURL(urlArray):
     for url in urlArray:
         imageArray.append(Image.open(BytesIO(requests.get(url).content)))
     return genImage(imageArray)
+    
+def lambda_handler(event, context):
+    # TODO implement
+    images = event["queryStringParameters"].get("imgs","").split(",")
+    combined = genImageFromURL(images)
+    buffered = BytesIO()
+    combined.save(buffered,format="JPEG")
+    combined_str=base64.b64encode(buffered.getvalue()).decode('ascii')
+    return {
+        'statusCode': 200,
+        "headers": 
+        {
+            "Content-Type": "image/jpg"
+        },
+        'body': combined_str,
+        'isBase64Encoded': True
+    }

twitfix.py

@@ -46,7 +46,8 @@ if not os.path.exists("config.json"):
                 "color":"#43B581", 
                 "appname": "vxTwitter", 
                 "repo": "https://github.com/dylanpdx/BetterTwitFix", 
-                "url": "https://vxtwitter.com"
+                "url": "https://vxtwitter.com",
+                "combination_method": "local" # can either be 'local' or a URL to a server handling requests in the same format
                 },
             "api":{"api_key":"[api_key goes here]",
             "api_secret":"[api_secret goes here]",
@@ -222,6 +223,11 @@ def favicon():
 def rendercombined():
     # get "imgs" from request arguments
     imgs = request.args.get("imgs", "")
+
+    if 'combination_method' in config['config'] and config['config']['combination_method'] != "local":
+        return redirect(config['config']['combination_method']+"?imgs="+imgs, 301)
+    # Redirecting here instead of setting the embed URL directly to this because if the config combination_method changes in the future, old URLs will still work
+
     imgs = imgs.split(",")
     if (len(imgs) == 0 or len(imgs)>4):
         abort(400)