import hashlib import os from PyQt4 import QtGui import state from addresses import addBMIfNotPresent from bmconfigparser import BMConfigParser str_broadcast_subscribers = '[Broadcast subscribers]' str_chan = '[chan]' def identiconize(address): size = 48 if not BMConfigParser().getboolean('bitmessagesettings', 'useidenticons'): return QtGui.QIcon() # If you include another identicon library, please generate an # example identicon with the following md5 hash: # 3fd4bf901b9d4ea1394f0fb358725b28 identicon_lib = BMConfigParser().safeGet( 'bitmessagesettings', 'identiconlib', 'qidenticon_two_x') # As an 'identiconsuffix' you could put "@bitmessge.ch" or "@bm.addr" # to make it compatible with other identicon generators. (Note however, # that E-Mail programs might convert the BM-address to lowercase first.) # It can be used as a pseudo-password to salt the generation of # the identicons to decrease the risk of attacks where someone creates # an address to mimic someone else's identicon. identiconsuffix = BMConfigParser().get('bitmessagesettings', 'identiconsuffix') if identicon_lib[:len('qidenticon')] == 'qidenticon': # originally by: # :Author:Shin Adachi # Licesensed under FreeBSD License. # stripped from PIL and uses QT instead (by sendiulo, same license) import qidenticon icon_hash = hashlib.md5( addBMIfNotPresent(address) + identiconsuffix).hexdigest() use_two_colors = identicon_lib[:len('qidenticon_two')] == 'qidenticon_two' opacity = int( identicon_lib not in ( 'qidenticon_x', 'qidenticon_two_x', 'qidenticon_b', 'qidenticon_two_b' )) * 255 penwidth = 0 image = qidenticon.render_identicon( int(icon_hash, 16), size, use_two_colors, opacity, penwidth) # filename = './images/identicons/'+hash+'.png' # image.save(filename) idcon = QtGui.QIcon() idcon.addPixmap(image, QtGui.QIcon.Normal, QtGui.QIcon.Off) return idcon elif identicon_lib == 'pydenticon': # Here you could load pydenticon.py # (just put it in the "src" folder of your Bitmessage source) from pydenticon import Pydenticon # It is not included in the source, because it is licensed under GPLv3 # GPLv3 is a copyleft license that would influence our licensing # Find the source here: # https://github.com/azaghal/pydenticon # note that it requires pillow (or PIL) to be installed: # https://python-pillow.org/ idcon_render = Pydenticon( addBMIfNotPresent(address) + identiconsuffix, size * 3) rendering = idcon_render._render() data = rendering.convert("RGBA").tostring("raw", "RGBA") qim = QtGui.QImage(data, size, size, QtGui.QImage.Format_ARGB32) pix = QtGui.QPixmap.fromImage(qim) idcon = QtGui.QIcon() idcon.addPixmap(pix, QtGui.QIcon.Normal, QtGui.QIcon.Off) return idcon def avatarize(address): """ Loads a supported image for the given address' hash form 'avatars' folder falls back to default avatar if 'default.*' file exists falls back to identiconize(address) """ idcon = QtGui.QIcon() icon_hash = hashlib.md5(addBMIfNotPresent(address)).hexdigest() if address == str_broadcast_subscribers: # don't hash [Broadcast subscribers] icon_hash = address # https://www.riverbankcomputing.com/static/Docs/PyQt4/qimagereader.html#supportedImageFormats # QImageReader.supportedImageFormats () extensions = [ 'PNG', 'GIF', 'JPG', 'JPEG', 'SVG', 'BMP', 'MNG', 'PBM', 'PGM', 'PPM', 'TIFF', 'XBM', 'XPM', 'TGA'] # try to find a specific avatar for ext in extensions: lower_hash = state.appdata + 'avatars/' + icon_hash + '.' + ext.lower() upper_hash = state.appdata + 'avatars/' + icon_hash + '.' + ext.upper() if os.path.isfile(lower_hash): idcon.addFile(lower_hash) return idcon elif os.path.isfile(upper_hash): idcon.addFile(upper_hash) return idcon # if we haven't found any, try to find a default avatar for ext in extensions: lower_default = state.appdata + 'avatars/' + 'default.' + ext.lower() upper_default = state.appdata + 'avatars/' + 'default.' + ext.upper() if os.path.isfile(lower_default): default = lower_default idcon.addFile(lower_default) return idcon elif os.path.isfile(upper_default): default = upper_default idcon.addFile(upper_default) return idcon # If no avatar is found return identiconize(address)