chore(settings): add logging configuration and replace print statements

jdav_web/jdav_web/settings/__init__.py

@@ -58,6 +58,7 @@ base_settings = [
     'components/emails.py',
     'components/texts.py',
     'components/locale.py',
+    'components/logging.py',
     'components/oauth.py',
 ]
 

jdav_web/jdav_web/settings/components/logging.py

@@ -0,0 +1,59 @@
+import os
+
+DJANGO_LOG_LEVEL = get_var('logging', 'django_level', default='INFO')
+ROOT_LOG_LEVEL = get_var('logging', 'level', default='INFO')
+LOG_ERROR_TO_EMAIL = get_var('logging', 'email_admins', default=False)
+LOG_EMAIL_BACKEND = EMAIL_BACKEND if LOG_ERROR_TO_EMAIL else "django.core.mail.backends.console.EmailBackend"
+LOG_ERROR_INCLUDE_HTML = get_var('logging', 'error_report_include_html', default=False)
+
+LOGGING = {
+    "version": 1,
+    "disable_existing_loggers": False,
+    "filters": {
+        "require_debug_false": {
+            "()": "django.utils.log.RequireDebugFalse",
+        },
+        "require_debug_true": {
+            "()": "django.utils.log.RequireDebugTrue",
+        },
+    },
+    "formatters": {
+        "simple": {
+            "format": "[{asctime}: {levelname}/{name}] {message}",
+            "style": "{",
+        },
+        "verbose": {
+            "format": "[{asctime}: {levelname}/{name}] {pathname}:{lineno} {message}",
+            "style": "{",
+        },
+    },
+    "handlers": {
+        "console": {
+            "class": "logging.StreamHandler",
+            "formatter": "simple",
+        },
+        "console_verbose": {
+            "class": "logging.StreamHandler",
+            "formatter": "verbose",
+            "level": "ERROR",
+        },
+        "mail_admins": {
+            "level": "ERROR",
+            "class": "django.utils.log.AdminEmailHandler",
+            "email_backend": LOG_EMAIL_BACKEND,
+            "include_html": LOG_ERROR_INCLUDE_HTML,
+            "filters": ["require_debug_false"],
+        },
+    },
+    "root": {
+        "handlers": ["console"],
+        "level": ROOT_LOG_LEVEL,
+    },
+    "loggers": {
+        "django": {
+            "handlers": ["console", "mail_admins"],
+            "level": DJANGO_LOG_LEVEL,
+            "propagate": False,
+        },
+    },
+}

jdav_web/mailer/mailutils.py

@@ -1,9 +1,13 @@
 from django.core import mail
 from django.core.mail import EmailMessage
 from django.conf import settings
+import logging
 import os
 
 
+logger = logging.getLogger(__name__)
+
+
 NOT_SENT, SENT, PARTLY_SENT = 0, 1, 2
 
 def send(subject, content, sender, recipients, message_id=None, reply_to=None,
@@ -41,7 +45,7 @@ def send(subject, content, sender, recipients, message_id=None, reply_to=None,
         # send all mails with one connection
         connection.send_messages(mails)
     except Exception as e:
-        print("Error when sending mail:", e)
+        logger.error(f"Caught exception while sending email: {e}")
         failed = True
     else:
         succeeded = True

jdav_web/mailer/models.py

@@ -1,3 +1,4 @@
+import logging
 from django.db import models
 from django.core.exceptions import ValidationError
 from django import forms
@@ -17,6 +18,9 @@ from .rules import is_creator
 import os
 
 
+logger = logging.getLogger(__name__)
+
+
 alphanumeric = RegexValidator(r'^[0-9a-zA-Z._-]*$',
                               _('Only alphanumeric characters, ., - and _ are allowed'))
 
@@ -145,7 +149,7 @@ class Message(CommonModel):
             members.update([mol.member for mol in
                             self.to_notelist.membersonlist.all()])
         filtered = [m for m in members if m.gets_newsletter]
-        print("sending mail to", filtered)
+        logger.info(f"sending mail to {filtered}")
 
         attach = [a.f.path for a in Attachment.objects.filter(msg__id=self.pk)
                   if a.f.name]
@@ -189,7 +193,7 @@ class Message(CommonModel):
                 a.delete()
             success = SENT
         except Exception as e:
-            print("Exception caught", e)
+            logger.error(f"Caught exception while sending email: {e}")
             success = NOT_SENT
         finally:
             self.save()

jdav_web/members/models.py

@@ -590,7 +590,6 @@ class Member(Person):
     def send_upload_registration_form_link(self):
         if not self.upload_registration_form_key:
             return
-        print(self.name, self.upload_registration_form_key)
         link = self.get_upload_registration_form_link()
         self.send_mail(_('Upload registration form'),
                        settings.UPLOAD_REGISTRATION_FORM_TEXT.format(name=self.prename,
@@ -1579,7 +1578,6 @@ class Freizeit(CommonModel):
                 'Betreuer/in': str(numbers['staff']),
                 'Auswahl Veranstaltung': 'Auswahl2',
                 'Ort, Datum': '{p}, {d}'.format(p=settings.SEKTION, d=datetime.now().strftime('%d.%m.%Y'))}
-        print(members)
         for i, m in enumerate(members):
             suffix = str(' {}'.format(i + 1))
             # indexing starts at zero, but the listing in the pdf starts at 1

jdav_web/members/pdf.py

@@ -4,6 +4,7 @@ import os
 import subprocess
 import time
 import glob
+import logging
 from io import BytesIO
 from pypdf import PdfReader, PdfWriter, PageObject
 from django import template
@@ -15,6 +16,8 @@ from contrib.media import media_path, media_dir, serve_media, ensure_media_dir,
 from utils import normalize_filename
 from PIL import Image
 
+logger = logging.getLogger(__name__)
+
 
 def serve_pdf(filename_pdf):
     return serve_media(filename_pdf, 'application/pdf')
@@ -107,8 +110,7 @@ def pdf_add_attachments(pdf_writer, attachments):
             pdf_writer.append(img_pdf_scaled)
         
         except Exception as e:
-            print("Could not add image", fp)
+            logger.warning(f"Could not add image under filepath {fp}: {e}.")
-            print(e)
             
     
 def scale_pdf_page_to_a4(page):

jdav_web/members/views.py

@@ -291,7 +291,6 @@ def register(request):
             new_member.send_upload_registration_form_link()
             return HttpResponseRedirect(reverse('members:upload_registration_form') + "?key=" + new_member.upload_registration_form_key)
         except ValueError as e:
-            print("value error", e)
             # when input is invalid
             if pwd:
                 return render_register(request, group, form, emergency_contacts_formset, pwd=pwd.password,

jdav_web/utils.py

@@ -5,6 +5,8 @@ from django.core.exceptions import ValidationError
 from django.utils.translation import gettext_lazy as _
 from decimal import Decimal, ROUND_HALF_DOWN
 import unicodedata
+import logging
+logger = logging.getLogger(__name__)
 
 
 def file_size_validator(max_upload_size):
@@ -50,7 +52,7 @@ class RestrictedFileField(models.FileField):
                                         '{}').format(self.max_upload_size,
                                                      f._size))
         except AttributeError as e:
-            print(e)
+            logger.warning(e)
         return data