crash-reporter: detect guest mode and defer crash sending

crash_sender

 #!/bin/sh
 
 # Copyright (c) 2010 The Chromium OS Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 set -e
 
 # Product ID in crash report
 CHROMEOS_PRODUCT=ChromeOS
 
 # Should remove the run file when this process finishes.  We don't want
 # to always remove it since it may be for pre-existing crash_sender
 # process.
 CLEAN_UP_RUN_FILE=0
 
 # File whose existence implies crash reports may be sent, and whose
 # contents includes our machine's anonymized guid.
 CONSENT_ID="/home/chronos/Consent To Send Stats"

[petkov, 2010/10/01 22:10:52]

Unused now? Remove if so.

 
 # Path to find which is required for computing the crash rate.
 FIND="/usr/bin/find"
 
 # Set this to 1 in the environment to allow uploading crash reports
 # for unofficial versions.
 FORCE_OFFICIAL=${FORCE_OFFICIAL:-0}
 
 # Path to hardware class description.
 HWCLASS_PATH="/sys/devices/platform/chromeos_acpi/HWID"
 
 # Maximum crashes to send per day.
 MAX_CRASH_RATE=${MAX_CRASH_RATE:-32}
 
+# Path to metrics_client.
+METRICS_CLIENT="/usr/bin/metrics_client"
+
 # File whose existence mocks crash sending.  If empty we pretend the
 # crash sending was successful, otherwise unsuccessful.
 MOCK_CRASH_SENDING="/tmp/mock-crash-sending"
 
 # File whose existence causes crash sending to be delayed (for testing).
 # Must be stateful to enable testing kernel crashes.
 PAUSE_CRASH_SENDING="/var/lib/crash_sender_paused"
 
 # URL to send official build crash reports to.
 REPORT_UPLOAD_PROD_URL="http://clients2.google.com/cr/report"
@@ skipping 54 matching lines @@
   grep ^CHROMEOS_RELEASE_DESCRIPTION /etc/lsb-release | grep -q Official
 }
 
 # Generate a uniform random number in 0..max-1.
 generate_uniform_random() {
   local max=$1
   local random="$(od -An -N4 -tu /dev/urandom)"
   echo $((random % max))
 }
 
-is_feedback_disabled() {
-  [ -r "${CONSENT_ID}" ] && return 1
-  return 0
-}
-
 is_on_3g() {
   # See crosbug.com/3304.
   return 1
 }
 
 # Check if sending a crash now does not exceed the maximum 24hr rate and
 # commit to doing so, if not.
 check_rate() {
   mkdir -p ${TIMESTAMPS_DIR}
   # Only consider minidumps written in the past 24 hours by removing all older.
@@ skipping 162 matching lines @@
   for meta_path in $(ls -1t "${dir}"/*.meta 2>/dev/null); do
     lecho "Considering metadata ${meta_path}."
     local kind=$(get_kind "${meta_path}")
 
     if [ "${kind}" != "minidump" ] && [ "${kind}" != "kcrash" ]; then
       lecho "Unknown report kind.  Removing report."
       remove_report "${meta_path}"
       continue
     fi
 
-    if is_feedback_disabled; then
+    if ${METRICS_CLIENT} -g; then
+      lecho "Guest mode has been entered.  Delaying crash sending until exited."
+      return 0
+    fi
+
+    if ! ${METRICS_CLIENT} -c; then
       lecho "Uploading is disabled.  Removing crash."
       remove_report "${meta_path}"
       continue
     fi
 
     if ! is_mock && ! is_official; then
       lecho "Not an official OS version.  Removing crash."
       remove_report "${meta_path}"
       continue
     fi
@@ skipping 34 matching lines @@
 
 main() {
   trap cleanup EXIT INT TERM
   if [ -e "${PAUSE_CRASH_SENDING}" ]; then
     lecho "Exiting early due to ${PAUSE_CRASH_SENDING}."
     exit 1
   fi
 
   check_not_already_running
 
-  if [ ! -x "${FIND}" ]; then
-    lecho "Fatal: Crash sending disabled: ${FIND} not found."
-    exit 1
-  fi
+  for dependency in "${FIND}" "${METRICS_CLIENT}"; do
+    if [ ! -x "${dependency}" ]; then
+      lecho "Fatal: Crash sending disabled: ${dependency} not found."
+      exit 1
+    fi
+  done
 
   TMP_DIR="$(mktemp -d /tmp/crash_sender.XXXX)"
 
   # Send system-wide crashes
   send_crashes "/var/spool/crash"
 
   # Send user-specific crashes
   send_crashes "/home/chronos/user/crash"
 }
 
 main