no more fallbacks

pyruse/base.py

@@ -1,5 +1,5 @@
 # pyruse is intended as a replacement to both fail2ban and epylog
-# Copyright © 2017 Y. Gablin
+# Copyright © 2017–2018 Y. Gablin
 # Full licensing information in the LICENSE file, or gnu.org/licences/gpl-3.0.txt if the file is missing.
 import abc
 from pyruse import log
@@ -28,16 +28,13 @@ class Filter(Step):
         pass
 
     def run(self, entry):
-        global filterFallback
         try:
             nextStep = self.nextStep if self.filter(entry) else self.altStep
         except Exception as e:
-            log.error("Error while executing %s: %s." % (type(self), str(e)))
             nextStep = self.altStep
+            log.error("Error while executing %s: %s." % (type(self), str(e)))
         if nextStep:
             nextStep.run(entry)
-        elif filterFallback is not None:
-            filterFallback.run(entry)
 
 class Action(Step):
     def __init__(self):
@@ -48,15 +45,11 @@ class Action(Step):
         pass
 
     def run(self, entry):
-        global actionFallback
         try:
             self.act(entry)
+            nextStep = self.nextStep
         except Exception as e:
+            nextStep = None
             log.error("Error while executing %s: %s." % (type(self), str(e)))
-        if self.nextStep:
-            self.nextStep.run(entry)
-        elif self != filterFallback and self != actionFallback and actionFallback is not None:
-            actionFallback.run(entry)
-
-filterFallback = None
-actionFallback = None
+        if nextStep:
+            nextStep.run(entry)

pyruse/main.py

@@ -1,10 +1,10 @@
 # pyruse is intended as a replacement to both fail2ban and epylog
-# Copyright © 2017 Y. Gablin
+# Copyright © 2017–2018 Y. Gablin
 # Full licensing information in the LICENSE file, or gnu.org/licences/gpl-3.0.txt if the file is missing.
 import os
 import sys
 from systemd import journal
-from pyruse import base, config, module, workflow
+from pyruse import config, module, workflow
 
 PYRUSE_ENVVAR = "PYRUSE_EXTRA"
 PYRUSE_PATHS = []
@@ -37,17 +37,8 @@ def boot(modName):
 
 def main():
     _setPyrusePaths()
-    conf = config.Config(PYRUSE_PATHS)
-    fback = conf.asMap().get("fallback", {})
-    if "all_filters_failed" in fback:
-        base.filterFallback = module.get(fback.get("all_filters_failed")).module
-    else:
-        base.filterFallback = None
-    if "finalize_after_last_action" in fback:
-        base.actionFallback = module.get(fback.get("finalize_after_last_action")).module
-    else:
-        base.actionFallback = None
-    wf = workflow.Workflow(conf.asMap().get("actions", {}))
+    conf = config.Config(PYRUSE_PATHS).asMap().get("actions", {})
+    wf = workflow.Workflow(conf)
     _doForEachJournalEntry(wf.run)
 
 if __name__ == '__main__':

tests/main.py

@@ -7,7 +7,7 @@ import sys
 from datetime import datetime
 
 sys.path.insert(1, "..")
-from pyruse import actions, base, config, module, workflow
+from pyruse import actions, config, module, workflow
 
 def _clean():
     for f in ['acted_on.log', 'action_nftBan.py.json', 'email.dump', 'nftBan.cmd', 'unfiltered.log']:
@@ -17,15 +17,6 @@ def _clean():
 def main():
     global _microsec
     conf = config.Config(os.curdir)
-    fback = conf.asMap().get("fallback", {})
-    if "all_filters_failed" in fback:
-        base.filterFallback = module.get(fback.get("all_filters_failed")).module
-    else:
-        base.filterFallback = None
-    if "finalize_after_last_action" in fback:
-        base.actionFallback = module.get(fback.get("finalize_after_last_action")).module
-    else:
-        base.actionFallback = None
 
     # Unit tests
     import filter_equals, filter_greaterOrEquals, filter_in, filter_lowerOrEquals, filter_pcre, filter_pcreAny, filter_userExists

tests/pyruse.json

@@ -16,7 +16,8 @@
 			},
 			{
 				"action": "action_dailyReport",
-				"args": { "level": "INFO", "message": "Login as {user} from {ip}" }
+				"args": { "level": "INFO", "message": "Login as {user} from {ip}" },
+				"then": "… finalize after last action"
 			}
 		],
 		"… Detect failed logins": [
@@ -57,20 +58,23 @@
 			},
 			{
 				"action": "action_nftBan",
-				"args": { "IP": "ip", "banSeconds": 100, "nftSetIPv4": "I4 bans", "nftSetIPv6": "I6 bans" }
+				"args": { "IP": "ip", "banSeconds": 100, "nftSetIPv4": "I4 bans", "nftSetIPv6": "I6 bans" },
+				"then": "… finalize after last action"
+			}
+		],
+		"all filters failed": [
+			{
+				"action": "action_testLog",
+				"args": { "level": "OTHER", "message": "Filter came last [{_HOSTNAME}:{service}] {MESSAGE}", "outFile": "unfiltered.log" }
+			}
+		],
+		"… finalize after last action": [
+			{
+				"action": "action_testLog",
+				"args": { "level": "OTHER", "message": "Action came last [{_HOSTNAME}:{service}] {MESSAGE}", "outFile": "acted_on.log" }
 			}
 		]
 	},
-	"fallback": {
-		"all_filters_failed": {
-			"action": "action_testLog",
-			"args": { "level": "OTHER", "message": "Filter came last [{_HOSTNAME}:{service}] {MESSAGE}", "outFile": "unfiltered.log" }
-		},
-		"finalize_after_last_action": {
-			"action": "action_testLog",
-			"args": { "level": "OTHER", "message": "Action came last [{_HOSTNAME}:{service}] {MESSAGE}", "outFile": "acted_on.log" }
-		}
-	},
 	"email": {
 		"from": "pyruse@localhost",
 		"to": [