Update the Agent => Master security link to point to a non-Apache redirect

This help text points to a very old redirect which is only editable in our
infrastructure Puppet code (which will at some point in the distant future be
removed).

Changing to jenkins.io/redirect means that the destination of this redirect
is easily modified by pull requests to
https://github.com/jenkins-infra/jenkins.io

See also jenkins-infra/jenkins.io#520

core/src/main/java/jenkins/SoloFilePathFilter.java

@@ -28,7 +28,7 @@ public final class SoloFilePathFilter extends FilePathFilter {
 
     private boolean noFalse(String op, File f, boolean b) {
         if (!b)
-            throw new SecurityException("agent may not " + op + " " + f+"\nSee http://jenkins-ci.org/security-144 for more details");
+            throw new SecurityException("agent may not " + op + " " + f+"\nSee https://jenkins.io/redirect/security-144 for more details");
         return true;
     }
 

core/src/main/java/jenkins/security/s2m/CallableDirectionChecker.java

@@ -60,7 +60,7 @@ public class CallableDirectionChecker extends RoleChecker {
             return;
         }
 
-        throw new SecurityException("Sending " + name + " from agent to master is prohibited.\nSee http://jenkins-ci.org/security-144 for more details");
+        throw new SecurityException("Sending " + name + " from agent to master is prohibited.\nSee https://jenkins.io/redirect/security-144 for more details");
     }
 
     /**

core/src/main/resources/jenkins/security/s2m/AdminWhitelistRule/index.jelly

@@ -36,7 +36,7 @@ THE SOFTWARE.
       as an administrator, you can mark commands as OK for agents to execute (aka "whitelisting".)
     </p>
     <div class="warning" style="margin:1em">
-      Please see <a href="http://jenkins-ci.org/security-144">the discussion of this feature</a> to
+      Please see <a href="https://jenkins.io/redirect/security-144">the discussion of this feature</a> to
       understand the security implication of this.
     </div>
     <j:if test="${it.masterKillSwitch}">

core/src/main/resources/jenkins/security/s2m/MasterKillSwitchConfiguration/help-masterToSlaveAccessControl.html

 <div>
-  See <a href="http://jenkins-ci.org/security-144/">Jenkins project website</a> for discussion of this feature.
+  See <a href="https://jenkins.io/redirect/security-144/">Jenkins project website</a> for discussion of this feature.
   We strongly recommend you enable this.
 </div>

core/src/main/resources/jenkins/security/s2m/MasterKillSwitchWarning/message.properties

 blurb=Agent to master security subsystem is currently off. \
-  <a href="http://jenkins-ci.org/security-144">Please read the documentation</a> and consider turning it on.
\ No newline at end of file
+  <a href="https://jenkins.io/redirect/security-144">Please read the documentation</a> and consider turning it on.

core/src/main/resources/jenkins/security/s2m/MasterKillSwitchWarning/message_pt_BR.properties

@@ -22,5 +22,5 @@
 
 Examine=
 Dismiss=
-# <a href="http://jenkins-ci.org/security-144">Please read the documentation</a> and consider turning it on.
-  <a href="http://jenkins-ci.org/security-144">Por favor leia a documenta\u00e7\u00e3o</a> e ligue novamente.
+# <a href="https://jenkins.io/redirect/security-144">Please read the documentation</a> and consider turning it on.
+  <a href="https://jenkins.io/redirect/security-144">Por favor leia a documenta\u00e7\u00e3o</a> e ligue novamente.

core/src/main/resources/jenkins/security/s2m/MasterKillSwitchWarning/message_sr.properties

@@ -3,4 +3,4 @@
 Examine=
 Dismiss=\u041E\u0442\u043A\u0430\u0436\u0438
 blurb=\u0421\u0438\u0441\u0442\u0435\u043C \u043E\u0431\u0435\u0437\u0431\u0435\u0436\u0438\u0432\u0430\u045A\u0430 \u0432\u0435\u0437\u043E\u043C \u0438\u0437\u043C\u0435\u0452\u0443 \u0430\u0433\u0435\u043D\u0442\u0430 \u0438 \u043C\u0430\u0441\u0442\u0435\u0440\u0430 \u0458\u0435 \u0438\u0441\u043A\u0459\u0443\u0447\u0435\u043D. \
-  <a href="http://jenkins-ci.org/security-144">\u041C\u043E\u043B\u0438\u043C\u043E \u0432\u0430\u0441, \u043F\u0440\u043E\u0447\u0438\u0442\u0430\u0458\u0442\u0435 \u0434\u043E\u043A\u043C\u0435\u043D\u0442\u0430\u0446\u0438\u0458\u0443</a> \u0438 \u0443\u043A\u0459\u0443\u0447\u0438\u0442\u0435 \u0430\u043A\u043E \u0432\u0430\u043C \u0458\u0435 \u043F\u043E\u0442\u0440\u0435\u0431\u043D\u043E.
+  <a href="https://jenkins.io/redirect/security-144">\u041C\u043E\u043B\u0438\u043C\u043E \u0432\u0430\u0441, \u043F\u0440\u043E\u0447\u0438\u0442\u0430\u0458\u0442\u0435 \u0434\u043E\u043A\u043C\u0435\u043D\u0442\u0430\u0446\u0438\u0458\u0443</a> \u0438 \u0443\u043A\u0459\u0443\u0447\u0438\u0442\u0435 \u0430\u043A\u043E \u0432\u0430\u043C \u0458\u0435 \u043F\u043E\u0442\u0440\u0435\u0431\u043D\u043E.

core/src/main/resources/jenkins/security/s2m/callable.conf

@@ -5,7 +5,7 @@
 # To whitelist other names, place *.conf files by other names into this folder.
 # This file gets overwritten every time Jenkins starts.
 #
-# See http://jenkins-ci.org/security-144 for more details.
+# See https://jenkins.io/redirect/security-144 for more details.
 
 # maven plugin
 hudson.maven.MavenBuildProxy$Filter$AsyncInvoker

core/src/main/resources/jenkins/security/s2m/filepath-filter.conf

@@ -7,7 +7,7 @@
 # before parsed, so using a lower number allows you to override what we have here. This file
 # gets overwritten every time Jenkins starts.
 #
-# See http://jenkins-ci.org/security-144 for more details.
+# See https://jenkins.io/redirect/security-144 for more details.
 
 # This directory contains credentials, master encryption keys, and other sensitive information
 # that slaves have absolutely no business with.