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Unified Diff: chrome/browser/chromeos/policy/system_log_uploader.h

Issue 1193333017: Added system log uploader. (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: Fixed failed browser tests. Created 5 years, 4 months ago
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Index: chrome/browser/chromeos/policy/system_log_uploader.h
diff --git a/chrome/browser/chromeos/policy/system_log_uploader.h b/chrome/browser/chromeos/policy/system_log_uploader.h
new file mode 100644
index 0000000000000000000000000000000000000000..db3a260b06970f71e3135d70b15dfbe032fad839
--- /dev/null
+++ b/chrome/browser/chromeos/policy/system_log_uploader.h
@@ -0,0 +1,109 @@
+// Copyright (c) 2015 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.
+
+#ifndef CHROME_BROWSER_CHROMEOS_POLICY_SYSTEM_LOG_UPLOADER_H_
+#define CHROME_BROWSER_CHROMEOS_POLICY_SYSTEM_LOG_UPLOADER_H_
+
+#include "base/macros.h"
+#include "base/memory/ref_counted.h"
+#include "base/memory/ref_counted_memory.h"
+#include "base/memory/scoped_ptr.h"
+#include "base/memory/weak_ptr.h"
+#include "base/threading/thread_checker.h"
+#include "base/time/time.h"
+#include "chrome/browser/chromeos/policy/upload_job.h"
+
+namespace base {
+class SequencedTaskRunner;
+}
+
+namespace policy {
+
+// Class responsible for periodically uploading system logs, it handles the
+// server responses by UploadJob:Delegate callbacks.
+class SystemLogUploader : public UploadJob::Delegate {
+ public:
+ // Structure that stores the system log files as pairs: (file name, loaded
+ // from the disk binary file data).
+ typedef std::vector<std::pair<std::string, std::string>> SystemLogs;
+
+ // A delegate interface used by SystemLogUploader to read the system logs
+ // from the disk and create an upload job.
+ class Delegate {
+ public:
+ typedef base::Callback<void(scoped_ptr<SystemLogs> system_logs)>
+ LogUploadCallback;
+
+ virtual ~Delegate() {}
+
+ // Loads system logs and invokes |upload_callback|.
+ virtual void LoadSystemLogs(const LogUploadCallback& upload_callback) = 0;
+
+ // Creates a new fully configured instance of an UploadJob. This method
+ // will be called exactly once per every system log upload.
+ virtual scoped_ptr<UploadJob> CreateUploadJob(
+ const GURL& upload_url,
+ UploadJob::Delegate* delegate) = 0;
+ };
+
+ // Constructor. Callers can inject their own Delegate. A nullptr can be passed
+ // for |syslog_delegate| to use the default implementation.
+ explicit SystemLogUploader(
+ scoped_ptr<Delegate> syslog_delegate,
+ const scoped_refptr<base::SequencedTaskRunner>& task_runner);
+
+ ~SystemLogUploader() override;
+
+ // Returns the time of the last upload attempt, or Time(0) if no upload has
+ // ever happened.
+ base::Time last_upload_attempt() const { return last_upload_attempt_; }
+
+ // UploadJob::Delegate:
+ // Callbacks handle success and failure results of upload, destroy the
+ // upload job.
+ void OnSuccess() override;
+ void OnFailure(UploadJob::ErrorCode error_code) override;
+
+ private:
+ // Starts the system log loading process.
+ void StartLogUpload();
+
+ // The callback is invoked by the Delegate if system logs have been loaded
+ // from disk, uploads system logs.
+ void UploadSystemLogs(scoped_ptr<SystemLogs> system_logs);
+
+ // Helper method that figures out when the next system log upload should
+ // be scheduled.
+ void ScheduleNextSystemLogUpload(base::TimeDelta frequency);
+
+ // The number of consequent retries after the failed uploads.
+ int retry_count_;
+
+ // How long to wait between system log uploads.
+ base::TimeDelta upload_frequency_;
+
+ // The time the last upload attempt was performed.
+ base::Time last_upload_attempt_;
+
+ // TaskRunner used for scheduling upload tasks.
+ const scoped_refptr<base::SequencedTaskRunner> task_runner_;
+
+ // The upload job that is re-created on every system log upload.
+ scoped_ptr<UploadJob> upload_job_;
+
+ // The Delegate is used to load system logs and create UploadJobs.
+ scoped_ptr<Delegate> syslog_delegate_;
+
+ base::ThreadChecker thread_checker_;
+
+ // Note: This should remain the last member so it'll be destroyed and
+ // invalidate the weak pointers before any other members are destroyed.
+ base::WeakPtrFactory<SystemLogUploader> weak_factory_;
+
+ DISALLOW_COPY_AND_ASSIGN(SystemLogUploader);
+};
+
+} // namespace policy
+
+#endif // CHROME_BROWSER_CHROMEOS_POLICY_SYSTEM_LOG_UPLOADER_H_

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