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      1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 #include "chrome/browser/chromeos/system_logs/command_line_log_source.h"
      6 
      7 #include <string>
      8 #include <vector>
      9 
     10 #include "base/bind.h"
     11 #include "base/command_line.h"
     12 #include "base/files/file_path.h"
     13 #include "base/logging.h"
     14 #include "base/process/launch.h"
     15 #include "content/public/browser/browser_thread.h"
     16 
     17 using content::BrowserThread;
     18 
     19 namespace {
     20 
     21 // Gathers log data from various scripts/programs.
     22 void ExecuteCommandLines(system_logs::SystemLogsResponse* response) {
     23   // TODO(tudalex): Move program calling in a array or something similar to make
     24   // it more easier to modify and understand.
     25   std::vector<std::pair<std::string, CommandLine> > commands;
     26 
     27   CommandLine command(base::FilePath("/usr/bin/amixer"));
     28   command.AppendArg("-c0");
     29   command.AppendArg("contents");
     30   commands.push_back(std::make_pair("alsa controls", command));
     31 
     32   command = CommandLine((base::FilePath("/usr/bin/cras_test_client")));
     33   command.AppendArg("--dump_server_info");
     34   command.AppendArg("--dump_audio_thread");
     35   commands.push_back(std::make_pair("cras", command));
     36 
     37   command = CommandLine((base::FilePath("/usr/bin/audio_diagnostics")));
     38   commands.push_back(std::make_pair("audio_diagnostics", command));
     39 
     40 #if 0
     41   // This command hangs as of R39. TODO(alhli): Make cras_test_client more
     42   // robust or add a wrapper script that times out, and fix this or remove
     43   // this code. crbug.com/419523
     44   command = CommandLine((base::FilePath("/usr/bin/cras_test_client")));
     45   command.AppendArg("--loopback_file");
     46   command.AppendArg("/dev/null");
     47   command.AppendArg("--rate");
     48   command.AppendArg("44100");
     49   command.AppendArg("--duration_seconds");
     50   command.AppendArg("0.01");
     51   command.AppendArg("--show_total_rms");
     52   commands.push_back(std::make_pair("cras_rms", command));
     53 #endif
     54 
     55   command = CommandLine((base::FilePath("/usr/bin/printenv")));
     56   commands.push_back(std::make_pair("env", command));
     57 
     58   command = CommandLine(base::FilePath("/usr/bin/setxkbmap"));
     59   command.AppendArg("-print");
     60   command.AppendArg("-query");
     61   commands.push_back(std::make_pair("setxkbmap", command));
     62 
     63   command = CommandLine(base::FilePath("/usr/bin/xinput"));
     64   command.AppendArg("list");
     65   command.AppendArg("--long");
     66   commands.push_back(std::make_pair("xinput", command));
     67 
     68   command = CommandLine(base::FilePath("/usr/bin/xrandr"));
     69   command.AppendArg("--verbose");
     70   commands.push_back(std::make_pair("xrandr", command));
     71 
     72   // Get a list of file sizes for the logged in user (excluding the names of
     73   // the files in the Downloads directory for privay reasons).
     74   command = CommandLine(base::FilePath("/bin/sh"));
     75   command.AppendArg("-c");
     76   command.AppendArg("/usr/bin/du -h /home/chronos/user |"
     77                     " grep -v -e \\/home\\/chronos\\/user\\/Downloads\\/");
     78   commands.push_back(std::make_pair("user_files", command));
     79 
     80   for (size_t i = 0; i < commands.size(); ++i) {
     81     std::string output;
     82     base::GetAppOutput(commands[i].second, &output);
     83     (*response)[commands[i].first] = output;
     84   }
     85 }
     86 
     87 }  // namespace
     88 
     89 namespace system_logs {
     90 
     91 void CommandLineLogSource::Fetch(const SysLogsSourceCallback& callback) {
     92   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
     93   DCHECK(!callback.is_null());
     94 
     95   SystemLogsResponse* response = new SystemLogsResponse;
     96   BrowserThread::PostBlockingPoolTaskAndReply(
     97       FROM_HERE,
     98       base::Bind(&ExecuteCommandLines, response),
     99       base::Bind(callback, base::Owned(response)));
    100 }
    101 
    102 }  // namespace system_logs
    103