commit 66ef631c51176777da212ab02f7a0d47dff00579 Author: Isis Lovecruft isis@torproject.org Date: Sun Feb 1 00:15:59 2015 +0000

Add support for generating QRCodes with 'bridge://' schema for Orbot. --- lib/bridgedb/qrcodes.py | 21 +++++++++++++++++---- 1 file changed, 17 insertions(+), 4 deletions(-)

diff --git a/lib/bridgedb/qrcodes.py b/lib/bridgedb/qrcodes.py index a76cf8f..8016262 100644 --- a/lib/bridgedb/qrcodes.py +++ b/lib/bridgedb/qrcodes.py @@ -25,13 +25,15 @@ except ImportError: "work. On Debian-based systems, this should be in the " "python-qrcode package."))

-def generateQR(bridgelines, imageFormat=u'JPEG'): + +def generateQR(bridgelines, imageFormat=u'JPEG', bridgeSchema=False): """Generate a QRCode for the client's bridge lines.

:param str bridgelines: The Bridge Lines which we are distributing to the client. + :param bool bridgeSchema: If ``True``, prepend ``'bridge://'`` to the + beginning of each bridge line before QR encoding. :rtype: str or ``None`` - :returns: The generated QRCode, as a string. """ logging.debug("Attempting to encode bridge lines into a QRCode...") @@ -43,16 +45,26 @@ def generateQR(bridgelines, imageFormat=u'JPEG'): logging.info("Not creating QRCode for bridgelines; no qrcode module.")

try: + if bridgeSchema: + # See https://bugs.torproject.org/12639 for why bridge:// is used. + # (Hopefully, Orbot will pick up the ACTION_VIEW intent.) + schema = 'bridge://' + prefixed = [] + for line in bridgelines.strip().split('\n'): + prefixed.append(schema + line) + bridgelines = '\n'.join(prefixed) + + logging.debug("QR encoding bridge lines: %s" % bridgelines)

qr = qrcode.QRCode() qr.add_data(bridgelines) + buf = cStringIO.StringIO() img = qr.make_image().resize([350, 350]) img.save(buf, imageFormat) buf.seek(0) + imgstr = buf.read() - logging.debug("Got QRCode image string.") - return imgstr

except KeyError as error: @@ -62,3 +74,4 @@ def generateQR(bridgelines, imageFormat=u'JPEG'): except Exception as error: logging.error(("There was an error while attempting to generate the " "QRCode: %s") % str(error)) +