[CHORE] Remove calls to jsonbin (hedyorg#4200)

In the beginning of Hedy, we logged to jsonbin for simplicity, but we have since professionalized and now also log to s3. We can stop to also log to jsonbin (we did both because I was scared of losing logs and then we never removed jsonbin)

app.py

@@ -36,7 +36,7 @@
 from logging_config import LOGGING_CONFIG
 from utils import dump_yaml_rt, is_debug_mode, load_yaml_rt, timems, version, strip_accents
 from website import (ab_proxying, achievements, admin, auth_pages, aws_helpers,
-                     cdn, classes, database, for_teachers, jsonbin, parsons,
+                     cdn, classes, database, for_teachers, s3_logger, parsons,
                      profile, programs, querylog, quiz, statistics,
                      translating)
 from website.auth import (current_user, is_admin, is_teacher,
@@ -328,9 +328,7 @@ def before_request_https():
 
 Compress(app)
 Commonmark(app)
-parse_logger = jsonbin.MultiParseLogger(
-    jsonbin.JsonBinLogger.from_env_vars(),
-    jsonbin.S3ParseLogger.from_env_vars())
+parse_logger = s3_logger.S3ParseLogger.from_env_vars()
 querylog.LOG_QUEUE.set_transmitter(
     aws_helpers.s3_querylog_transmitter_from_env())
 

gunicorn.conf.py

@@ -4,9 +4,9 @@
 def worker_exit(server, worker):
     # When the worker is being exited (perhaps because of a timeout),
     # give the query_log handler a chance to flush to disk.
-    from website import querylog, jsonbin
+    from website import querylog, s3_logger
     querylog.emergency_shutdown()
-    jsonbin.emergency_shutdown()
+    s3_logger.emergency_shutdown()
 
 
 def post_fork(server, worker):

website/s3_logger.py

@@ -0,0 +1,38 @@
+import logging
+
+from . import aws_helpers, log_queue
+
+logger = logging.getLogger(__name__)
+
+
+class NullLogger:
+    """A logger that doesn't actually do anything."""
+
+    def log(self, obj):
+        pass
+
+
+class S3ParseLogger:
+    """A logger that logs to S3.
+    """
+
+    @staticmethod
+    def from_env_vars():
+        transmitter = aws_helpers.s3_parselog_transmitter_from_env()
+        if not transmitter:
+            return NullLogger()
+
+        S3_LOG_QUEUE.set_transmitter(transmitter)
+        return S3ParseLogger()
+
+    def log(self, obj):
+        S3_LOG_QUEUE.add(obj)
+
+
+S3_LOG_QUEUE = log_queue.LogQueue("parse", batch_window_s=300)
+S3_LOG_QUEUE.try_load_emergency_saves()
+
+
+def emergency_shutdown():
+    """The process is being killed. Do whatever needs to be done to save the logs."""
+    S3_LOG_QUEUE.emergency_save_to_disk()