[JENKINS-34758] Parameters visibility in child builds (SECURITY-170)

jenkinsci · May 18, 2016 · c684cc6 · c684cc6
1 parent 510aa05
commit c684cc6
Show file tree

Hide file tree

Showing 2 changed files with 98 additions and 0 deletions.
diff --git a/src/main/java/hudson/matrix/MatrixChildParametersAction.java b/src/main/java/hudson/matrix/MatrixChildParametersAction.java
@@ -0,0 +1,92 @@
+/*
+ * The MIT License
+ * 
+ * Copyright (c) 2016, CloudBees, Inc.
+ * 
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ * 
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+package hudson.matrix;
+
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.List;
+
+import javax.annotation.Nonnull;
+
+import hudson.EnvVars;
+import hudson.Extension;
+import hudson.model.EnvironmentContributor;
+import hudson.model.InvisibleAction;
+import hudson.model.ParameterValue;
+import hudson.model.ParametersAction;
+import hudson.model.Run;
+import hudson.model.TaskListener;
+
+/**
+ * This class is used to pass parameter actions from a {@link MatrixBuild} to a {@link MatrixRun}.
+ * This wrapper action is needed since SECURITY-170 is blocking undefined parameters in the child job (thus builds).
+ * 
+ * It's intended for internal use only, that's why constructor and methods are packaged visible.
+ * The class itself is public to be visible to core so it can pick up the {@link MatrixChildParametersActionEnvironmentContributor}.
+ */
+public class MatrixChildParametersAction extends InvisibleAction implements MatrixChildAction {
+
+    private final List<ParameterValue> parameters;
+
+    MatrixChildParametersAction(List<ParameterValue> parameters) {
+        this.parameters = parameters;
+    }
+
+    List<ParameterValue> getParameters() {
+        return parameters;
+    }
+
+    static MatrixChildParametersAction create(ParametersAction action) {
+        List<ParameterValue> p = new ArrayList<ParameterValue>();
+        if (action != null) {
+            p.addAll(action.getParameters());
+        }
+        return new MatrixChildParametersAction(p);
+    }
+
+    @Extension
+    public static final class MatrixChildParametersActionEnvironmentContributor extends EnvironmentContributor {
+
+        @Override
+        public void buildEnvironmentFor(@Nonnull Run r, @Nonnull EnvVars envs, @Nonnull TaskListener listener)
+                throws IOException, InterruptedException {
+            if (r instanceof MatrixRun) {
+                MatrixChildParametersAction childParameters = r.getAction(MatrixChildParametersAction.class);
+                if (childParameters != null) {
+                    for(ParameterValue p : childParameters.getParameters()) {
+                        putEnvVar(envs, p.getName(), String.valueOf(p.getValue()));
+                    }
+                }
+            }
+        }
+
+        private static void putEnvVar(@Nonnull EnvVars envs, String name, String value){
+            if (value != null) {
+                envs.put(name, value);
+            } else {
+                envs.put(name, "");
+            }
+        }
+    }
+}
diff --git a/src/main/java/hudson/matrix/MatrixConfiguration.java b/src/main/java/hudson/matrix/MatrixConfiguration.java
@@ -484,6 +484,12 @@ public boolean scheduleBuild(List<? extends Action> actions, Cause c) {
         allActions.add(new ParentBuildAction());
         allActions.add(new CauseAction(c));
 
+        for (Action a : actions) { // SECURITY-170
+            if (a instanceof ParametersAction) {
+                allActions.add(MatrixChildParametersAction.create((ParametersAction) a));
+            }
+        }
+
         return jenkins.getQueue().schedule2(this, getQuietPeriod(), allActions ).isAccepted();
     }