Fix Authorization Matrix property - inheritance strategy

Up until now <inheritanceStrategy> tag was only added to jobs-in-a-folder
and folder configs. In JJB the tag's class is always set to
"InheritParentStrategy" which according to the docs means the "item will
inherit its parent items permissions". Apparently <inheritanceStrategy>
tag needs to be present on top-level jobs also. For top-level jobs
setting the tag's class value to "InheritParentStrategy" means the job
"will inherit the global security security settings" and this is the
default behavior.

The code has simplified a bit - if it's a folder then we use a different
property name for authorization matrix property, other than that the
code is the same for all three "variants": folder, job-in-a-folder and
job-outside-a-folder (top-level job).

Also this change fixes the missing <inheritanceStrategy> tag for
job-in-a-folder, where the folder name was specified as part of the
"name" key instead of the standalone "folder" key. With this change we
no longer check if a job is in a folder or not, so it's implicitly
fixed. Added a test case to catch potential regressions in the future.

The copyright notice reflects this and the previous contribution in this
module.

Change-Id: I84b22c09c8a107aab2b4eca20feffc9b61675a92

jenkins_jobs/modules/properties.py

@@ -1,4 +1,5 @@
 # Copyright 2012 Hewlett-Packard Development Company, L.P.
+# Copyright 2020 Liberty Global B.V.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -518,9 +519,6 @@ def authorization(registry, xml_parent, data):
        :language: yaml
     """
 
-    # get the folder name if it exists
-    in_a_folder = data.pop("_use_folder_perms", None) if data else None
-
     # check if it's a folder or a job
     is_a_folder = data.pop("_is_a_folder", None) if data else False
 
@@ -551,7 +549,6 @@ def authorization(registry, xml_parent, data):
     }
 
     if data:
-        if in_a_folder:
         if is_a_folder:
             element_name = "com.cloudbees.hudson.plugins.folder.properties.AuthorizationMatrixProperty"
         else:
@@ -564,10 +561,6 @@ def authorization(registry, xml_parent, data):
                 "class": "org.jenkinsci.plugins.matrixauth.inheritance.InheritParentStrategy"
             },
         )
-        else:
-            matrix = XML.SubElement(
-                xml_parent, "hudson.security.AuthorizationMatrixProperty"
-            )
 
         for (username, perms) in data.items():
             for perm in perms:
@@ -1271,13 +1264,10 @@ class Properties(jenkins_jobs.modules.base.Base):
                 # Only projects are placed in folders
                 if "project-type" in data:
                     if data["project-type"] in ("folder", "multibranch"):
-                        prop["authorization"]["_use_folder_perms"] = True
                         prop["authorization"]["_is_a_folder"] = True
                     else:
-                        prop["authorization"]["_use_folder_perms"] = "folder" in data
                         prop["authorization"]["_is_a_folder"] = False
                 else:
-                    prop["authorization"]["_use_folder_perms"] = False
                     prop["authorization"]["_is_a_folder"] = False
 
             self.registry.dispatch("property", properties, prop)

tests/properties/fixtures/authorization.xml

@@ -2,6 +2,7 @@
 <project>
   <properties>
     <hudson.security.AuthorizationMatrixProperty>
+      <inheritanceStrategy class="org.jenkinsci.plugins.matrixauth.inheritance.InheritParentStrategy"/>
       <permission>com.cloudbees.plugins.credentials.CredentialsProvider.Create:admin</permission>
       <permission>com.cloudbees.plugins.credentials.CredentialsProvider.Delete:admin</permission>
       <permission>com.cloudbees.plugins.credentials.CredentialsProvider.ManageDomains:admin</permission>

tests/properties/fixtures/authorization_matrix.xml

@@ -2,6 +2,7 @@
 <project>
   <properties>
     <hudson.security.AuthorizationMatrixProperty>
+      <inheritanceStrategy class="org.jenkinsci.plugins.matrixauth.inheritance.InheritParentStrategy"/>
       <permission>hudson.model.Item.Delete:admin</permission>
       <permission>hudson.model.Item.Configure:admin</permission>
       <permission>hudson.model.Item.Read:admin</permission>

tests/yamlparser/fixtures/auth-jobs/project-in-folder-with-auth-properties2.xml

@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="utf-8"?>
+<project>
+  <actions/>
+  <description>&lt;!-- Managed by Jenkins Job Builder --&gt;</description>
+  <keepDependencies>false</keepDependencies>
+  <blockBuildWhenDownstreamBuilding>false</blockBuildWhenDownstreamBuilding>
+  <blockBuildWhenUpstreamBuilding>false</blockBuildWhenUpstreamBuilding>
+  <concurrentBuild>false</concurrentBuild>
+  <canRoam>true</canRoam>
+  <properties>
+    <hudson.security.AuthorizationMatrixProperty>
+      <inheritanceStrategy class="org.jenkinsci.plugins.matrixauth.inheritance.InheritParentStrategy"/>
+      <permission>hudson.model.Item.Build:auser</permission>
+    </hudson.security.AuthorizationMatrixProperty>
+  </properties>
+  <scm class="hudson.scm.NullSCM"/>
+  <builders/>
+  <publishers/>
+  <buildWrappers/>
+</project>

tests/yamlparser/fixtures/project-in-folder-with-auth-properties2.yaml

@@ -0,0 +1,8 @@
+- job:
+    # folder name specified as part of job name
+    name: auth-jobs/auth-job-test
+    project-type: freestyle
+    properties:
+    - authorization:
+        auser:
+          - job-build

tests/yamlparser/fixtures/project-with-auth-properties.xml

@@ -14,6 +14,7 @@
   <canRoam>true</canRoam>
   <properties>
     <hudson.security.AuthorizationMatrixProperty>
+      <inheritanceStrategy class="org.jenkinsci.plugins.matrixauth.inheritance.InheritParentStrategy"/>
       <permission>hudson.model.Item.Build:auser</permission>
     </hudson.security.AuthorizationMatrixProperty>
   </properties>