diff options
Diffstat (limited to 'host/utils/uhd_images_downloader.py.in')
| -rw-r--r-- | host/utils/uhd_images_downloader.py.in | 69 |
1 files changed, 46 insertions, 23 deletions
diff --git a/host/utils/uhd_images_downloader.py.in b/host/utils/uhd_images_downloader.py.in index 8c8d2df81..e7fc9e8a5 100644 --- a/host/utils/uhd_images_downloader.py.in +++ b/host/utils/uhd_images_downloader.py.in @@ -1,6 +1,6 @@ #!/usr/bin/env python # -# Copyright 2012 Ettus Research LLC +# Copyright 2012-2013 Ettus Research LLC # # This program is free software: you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by @@ -17,15 +17,27 @@ # import atexit +import hashlib from optparse import OptionParser import os import os.path import shutil +import string import sys import tempfile import urllib2 import zipfile +def md5Checksum(filePath): + with open(filePath, 'rb') as fh: + m = hashlib.md5() + while True: + data = fh.read(8192) + if not data: + break + m.update(data) + return m.hexdigest() + class temp_dir(): def __enter__(self): @@ -44,6 +56,7 @@ if __name__ == "__main__": #Configuring image download info images_src = "@UHD_IMAGES_DOWNLOAD_SRC@" + images_zip_md5sum = "@UHD_IMAGES_MD5SUM@" filename = images_src.split("/")[-1] with temp_dir() as dirname: @@ -57,7 +70,9 @@ if __name__ == "__main__": else: images_dir = "@CMAKE_INSTALL_PREFIX@/share/uhd/images" - u = urllib2.urlopen(images_src) + opener = urllib2.build_opener() + opener.add_headers = [('User-Agent', 'UHD Images Downloader')] + u = opener.open(images_src) f = open(filename, "wb") meta = u.info() filesize = float(meta.getheaders("Content-Length")[0]) @@ -81,29 +96,37 @@ if __name__ == "__main__": f.close() - #Extracting contents of zip file - if os.path.exists("tempdir"): - shutil.rmtree("tempdir") - os.mkdir("tempdir") + #Checking md5sum of zip file + downloaded_zip_md5sum = md5Checksum(filename) + if images_zip_md5sum != downloaded_zip_md5sum: + print "\nMD5 checksum does not match!" + print "Expected %s, got %s" % (images_zip_md5sum, downloaded_zip_md5sum) + os.remove(filename) + os.chdir("/".join(images_dir.split("/")[:-1])) + else: + #Extracting contents of zip file + if os.path.exists("tempdir"): + shutil.rmtree("tempdir") + os.mkdir("tempdir") - images_zip = zipfile.ZipFile(filename) - images_zip.extractall("tempdir") + images_zip = zipfile.ZipFile(filename) + images_zip.extractall("tempdir") - #Removing images currently in images_dir - if os.path.exists(images_dir): - try: - shutil.rmtree(images_dir) - except: - sys.stderr.write("\nMake sure you have write permissions in the images directory.\n") - sys.exit(0) + #Removing images currently in images_dir + if os.path.exists(images_dir): + try: + shutil.rmtree(images_dir) + except: + sys.stderr.write("\nMake sure you have write permissions in the images directory.\n") + sys.exit(0) - #Copying downloaded images into images_dir - shutil.copytree("tempdir/%s/share/uhd/images" % filename[:-4],images_dir) + #Copying downloaded images into images_dir + shutil.copytree("tempdir/%s/share/uhd/images" % filename[:-4],images_dir) - #Removing tempdir and zip file - shutil.rmtree("tempdir") - images_zip.close() - os.remove(filename) + #Removing tempdir and zip file + shutil.rmtree("tempdir") + images_zip.close() + os.remove(filename) - os.chdir(images_dir) - print "\nImages successfully installed to: %s" % images_dir + os.chdir(images_dir) + print "\nImages successfully installed to: %s" % images_dir |