Update cros_download_latest_image to work again.

cros_download_latest_image was using cros_gsdcurl, which has stopped working,
even when you use application-specific passwords. I've updated it to use
gsutil instead, which is more supported.

BUG=chromium-os:17512
TEST=Try downloading the latest x86-generic image.

Change-Id: Ia7b0704a8c7ff6897508c44e882f87bc44ccbe28
Reviewed-on: http://gerrit.chromium.org/gerrit/5031
Reviewed-by: Rahul Chaturvedi <rkc@chromium.org>
Tested-by: David James <davidjames@chromium.org>

bin/cros_gsdcurl.py

@@ -1,69 +0,0 @@
-#!/usr/bin/python
-# 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.
-
-
-import getpass
-import os
-import re
-import subprocess
-import sys
-import tempfile
-import urllib
-
-
-def Authenticate():
-  default_username = getpass.getuser()
-  username = os.environ.get('GSDCURL_USERNAME')
-  if username is None:
-    sys.stderr.write('Username [' + default_username + ']: ')
-    username = raw_input()
-  if username == '':
-    username = default_username + '@google.com'
-  elif '@' not in username:
-    username = username + '@google.com'
-  passwd = os.environ.get('GSDCURL_PASSWORD')
-  if passwd is None:
-    sys.stderr.write('Password: ')
-    passwd = getpass.getpass(prompt='')
-  cmd = [
-      'curl', '--silent', 'https://www.google.com/accounts/ClientLogin',
-      '-d', 'Email=' + username,
-      '-d', 'Passwd=' + urllib.quote_plus(passwd),
-      '-d', 'accountType=GOOGLE',
-      '-d', 'source=Google-gsdcurl-ver1',
-      '-d', 'service=cds',
-  ]
-  p = subprocess.Popen(cmd, stdout=subprocess.PIPE)
-  (p_stdout, _) = p.communicate()
-  assert p.returncode == 0
-  m = re.search('\nAuth=([^\n]+)\n', p_stdout)
-  if not m:
-    sys.stderr.write('BAD LOGIN\n')
-    sys.exit(1)
-  auth = m.group(1)
-  return auth
-
-
-def DoCurl(auth, argv):
-  (_, cookies) = tempfile.mkstemp(prefix='gsdcookie')
-  cmd = [
-      'curl', '-L',
-      '-b', cookies, '-c', cookies,
-      '--header', 'Authorization: GoogleLogin auth=' + auth,
-  ] + argv[1:]
-  try:
-    p = subprocess.Popen(cmd)
-    return p.wait()
-  finally:
-    os.remove(cookies)
-
-
-def main(argv):
-  auth = Authenticate()
-  return DoCurl(auth, argv)
-
-
-if __name__ == '__main__':
-  sys.exit(main(sys.argv))

cros_download_latest_image

@@ -32,42 +32,36 @@ get_default_board
 
 DEFINE_string board "$DEFAULT_BOARD" \
   "The name of the board to check for images."
-DEFINE_boolean incremental "${FLAGS_FALSE}" "Download incremental build"
+DEFINE_boolean incremental "$FLAGS_FALSE" "Download incremental build"
 
 # Parse command line flags.
 FLAGS "$@" || exit 1
-eval set -- "${FLAGS_ARGV}"
+eval set -- "$FLAGS_ARGV"
 
 # Check on the board that they are trying to set up.
 if [ -z "$FLAGS_board" ] ; then
   die "Error: --board required."
 fi
 
-IMAGES_DIR="${DEFAULT_BUILD_ROOT}/images/${FLAGS_board}"
-
+BUCKET="chromeos-image-archive"
 if [ $FLAGS_board = x86-generic ]; then
   if [ "$FLAGS_incremental" -eq "$FLAGS_TRUE" ]; then
-    URL_PREFIX="https://sandbox.google.com/storage/chromeos-archive/x86-generic-bin"
+    PATH_PREFIX="x86-generic-pre-flight-queue"
   else
-    URL_PREFIX="https://sandbox.google.com/storage/chromeos-archive/x86-generic-rel"
+    PATH_PREFIX="x86-generic-full"
   fi
 else
   die "Unrecognized board: $FLAGS_board"
 fi
 
-read -p "Username [${LOGNAME}]: " GSDCURL_USERNAME
-export GSDCURL_USERNAME
-read -s -p "Password: " GSDCURL_PASSWORD
-echo >&2   # ... because read -s didn't print a newline
-export GSDCURL_PASSWORD
-
-LATEST_BUILD=$(bin/cros_gsdcurl.py -s $URL_PREFIX/LATEST)
+URL_PREFIX="gs://$BUCKET/$PATH_PREFIX"
+LATEST_BUILD=$(gsutil cat $URL_PREFIX/LATEST)
+IMAGES_DIR="$DEFAULT_BUILD_ROOT/images/$FLAGS_board"
 LATEST_IMAGE_DIR="$IMAGES_DIR/$LATEST_BUILD"
 if [ ! -e $LATEST_IMAGE_DIR/chromiumos_base_image.bin ]; then
   mkdir -p $LATEST_IMAGE_DIR
-  bin/cros_gsdcurl.py $URL_PREFIX/$LATEST_BUILD/image.zip -o \
-      $LATEST_IMAGE_DIR/image.zip \
-      || die "Could not download image.zip"
+  gsutil cp "$URL_PREFIX/$LATEST_BUILD/image.zip" \
+      "$LATEST_IMAGE_DIR/image.zip" || die "Could not download image.zip"
   ( cd $LATEST_IMAGE_DIR && unzip -qo image.zip ) \
       || die "Could not unzip image.zip"
 fi