Add share endpoint

src/api/get.py

@@ -42,7 +42,6 @@ uploadForm.add_argument('nsfw',
                         type=bool,
                         required=True)
 
-
 @api.route('/exact/<string:file_name>')
 @api.route('/<string:file_name>', doc={
     "description" : "Alias for /exact/{query}"
@@ -138,3 +137,24 @@ class getRandomFile(Resource):
 
         return response
 
+@api.route('/share/<string:file_name>')
+@api.doc(description="Returns a share URL from the underlying bucket")
+class getShareLink(Resource):
+    @api.response(200, 'Sucess')
+    @api.response(500, 'S3 Error')
+    @api.response(404, 'Requested file not found')
+    def get(self, file_name):
+        client = getClientSafely()
+        if client is None:
+            abort(500, "S3 failed to start")
+
+        if file_name in client.getCurrentMemeList():
+            url = client.getShareForMeme(file_name)
+            return {
+                    "url": url,
+                    }
+        else:
+            abort(400, "Requested file '" + file_name + "' not found")
+
+
+

src/s3Client.py

@@ -170,4 +170,25 @@ class Client:
             raise Exception("Requested meme '" + memeName + "' not found")
         return None
 
+    def getShareForMeme(self, memeName: str) -> str:
+        """
+        Returns the S3 bucket's share link for the meme
+        """
+
+        if not isinstance(memeName, str):
+            raise Exception("paramater memeName is of improper type, expected a str")
+
+        if memeName not in self.getCurrentMemeList():
+            raise Exception("Requested meme '" + memeName + "' not found")
+
+        reply = self.client.get_presigned_url(
+                method="GET",
+                bucket_name=S3_BUCKET,
+                object_name=memeName)
+
+        return reply
+
+
+
+