1 files changed, 71 insertions, 0 deletions
diff --git a/chrome/browser/policy/policy_transformations.cc b/chrome/browser/policy/policy_transformations.cc
new file mode 100644
index 0000000..3504e2a
--- /dev/null
+++ b/chrome/browser/policy/policy_transformations.cc
@@ -0,0 +1,71 @@
+// Copyright 2013 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "chrome/browser/policy/policy_transformations.h"
+
+#include "base/memory/scoped_ptr.h"
+#include "base/values.h"
+#include "chrome/browser/policy/policy_bundle.h"
+#include "chrome/browser/policy/policy_map.h"
+#include "policy/policy_constants.h"
+
+namespace policy {
+
+namespace {
+
+const char* kProxyPolicies[] = {
+  key::kProxyMode,
+  key::kProxyServerMode,
+  key::kProxyServer,
+  key::kProxyPacUrl,
+  key::kProxyBypassList,
+};
+
+void FixDeprecatedPolicies(PolicyMap* policies) {
+  // Proxy settings have been configured by 5 policies that didn't mix well
+  // together, and maps of policies had to take this into account when merging
+  // policy sources. The proxy settings will eventually be configured by a
+  // single Dictionary policy when all providers have support for that. For
+  // now, the individual policies are mapped here to a single Dictionary policy
+  // that the rest of the policy machinery uses.
+
+  // The highest (level, scope) pair for an existing proxy policy is determined
+  // first, and then only policies with those exact attributes are merged.
+  PolicyMap::Entry current_priority;  // Defaults to the lowest priority.
+  scoped_ptr<base::DictionaryValue> proxy_settings(new base::DictionaryValue);
+  for (size_t i = 0; i < arraysize(kProxyPolicies); ++i) {
+    const PolicyMap::Entry* entry = policies->Get(kProxyPolicies[i]);
+    if (entry) {
+      if (entry->has_higher_priority_than(current_priority)) {
+        proxy_settings->Clear();
+        current_priority = *entry;
+      }
+      if (!entry->has_higher_priority_than(current_priority) &&
+          !current_priority.has_higher_priority_than(*entry)) {
+        proxy_settings->Set(kProxyPolicies[i], entry->value->DeepCopy());
+      }
+      policies->Erase(kProxyPolicies[i]);
+    }
+  }
+  // Sets the new |proxy_settings| if kProxySettings isn't set yet, or if the
+  // new priority is higher.
+  const PolicyMap::Entry* existing = policies->Get(key::kProxySettings);
+  if (!proxy_settings->empty() &&
+      (!existing || current_priority.has_higher_priority_than(*existing))) {
+    policies->Set(key::kProxySettings,
+                  current_priority.level,
+                  current_priority.scope,
+                  proxy_settings.release(),
+                  NULL);
+  }
+}
+
+}  // namespace
+
+void FixDeprecatedPolicies(PolicyBundle* bundle) {
+  FixDeprecatedPolicies(
+      &bundle->Get(PolicyNamespace(POLICY_DOMAIN_CHROME, std::string())));
+}
+
+}  // namespace policy