Support anonymizer whitelisted UUIDs

chrome/browser/feedback/system_logs/system_logs_fetcher.cc

 // 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/feedback/system_logs/system_logs_fetcher.h"
 
 #include <utility>
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/memory/ptr_util.h"
 #include "content/public/browser/browser_thread.h"
 
 using content::BrowserThread;
 
 namespace system_logs {
 
+namespace {
+
+// List of keys in the SystemLogsResponse map whose corresponding values will
+// not be anonymized.
+constexpr const char* const kWhitelistedKeysOfUUIDs[] = {
+    "CHROMEOS_BOARD_APPID",
+    "CHROMEOS_CANARY_APPID",
+    "CHROMEOS_RELEASE_APPID",
+    "CLIENT_ID",
+};
+
+// Returns true if the given |key| is anonymizer-whitelisted and whose
+// corresponding value should not be anonymized.
+bool IsKeyWhitelisted(const std::string& key) {
+  for (auto* const whitelisted_key : kWhitelistedKeysOfUUIDs) {
+    if (key == whitelisted_key)
+      return true;
+  }
+  return false;
+}
+
+}  // namespace
+
 SystemLogsSource::SystemLogsSource(const std::string& source_name)
     : source_name_(source_name) {}
 
 SystemLogsSource::~SystemLogsSource() {}
 
 SystemLogsFetcher::SystemLogsFetcher(bool scrub_data)
     : response_(base::MakeUnique<SystemLogsResponse>()),
       num_pending_requests_(0),
       weak_ptr_factory_(this) {
   if (scrub_data)
@@ skipping 21 matching lines @@
   }
 }
 
 void SystemLogsFetcher::OnFetched(const std::string& source_name,
                                   SystemLogsResponse* response) {
   DCHECK_CURRENTLY_ON(BrowserThread::UI);
 
   VLOG(1) << "Received SystemLogSource: " << source_name;
 
   if (anonymizer_) {
-    for (auto& element : *response)
-      element.second = anonymizer_->Anonymize(element.second);
+    for (auto& element : *response) {
+      if (!IsKeyWhitelisted(element.first))
+        element.second = anonymizer_->Anonymize(element.second);
+    }
   }
   AddResponse(source_name, response);
 }
 
 void SystemLogsFetcher::AddResponse(const std::string& source_name,
                                     SystemLogsResponse* response) {
   for (const auto& it : *response) {
     // An element with a duplicate key would not be successfully inserted.
     bool ok = response_->emplace(it).second;
     DCHECK(ok) << "Duplicate key found: " << it.first;
   }
 
   --num_pending_requests_;
   if (num_pending_requests_ > 0)
     return;
 
   callback_.Run(std::move(response_));
   BrowserThread::DeleteSoon(BrowserThread::UI, FROM_HERE, this);
 }
 
 }  // namespace system_logs