moved gajim plugin to the subfolder 'gajim-plugin/httpupload'

1 files changed, 0 insertions, 702 deletions

diff --git a/gajim-plugin/httpupload.py b/gajim-plugin/httpupload.py
deleted file mode 100644
index b2bb3fc..0000000
--- a/gajim-plugin/httpupload.py
+++ /dev/null
@@ -1,702 +0,0 @@
-# -*- coding: utf-8 -*-
-##
-## This file is part of Gajim.
-##
-## Gajim is free software; you can redistribute it and/or modify
-## it under the terms of the GNU General Public License as published
-## by the Free Software Foundation; version 3 only.
-##
-## Gajim is distributed in the hope that it will be useful,
-## but WITHOUT ANY WARRANTY; without even the implied warranty of
-## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-## GNU General Public License for more details.
-##
-## You should have received a copy of the GNU General Public License
-## along with Gajim.  If not, see <http://www.gnu.org/licenses/>.
-##
-
-from common import demandimport
-demandimport.enable()
-demandimport.ignore += ['builtins', '__builtin__', 'PIL', '_imp']
-
-import gtk
-import gobject
-import os
-import time
-import base64
-import tempfile
-import urllib2
-import mimetypes        # better use the magic packet, but that's not a standard lib
-import gtkgui_helpers
-from Queue import Queue
-try:
-    from PIL import Image
-    pil_available = True
-except:
-    pil_available = False
-from io import BytesIO
-
-import binascii
-from common import gajim
-from common import ged
-import chat_control
-from plugins import GajimPlugin
-from plugins.helpers import log_calls
-import logging
-from dialogs import FileChooserDialog, ImageChooserDialog, ErrorDialog
-import nbxmpp
-
-log = logging.getLogger('gajim.plugin_system.httpupload')
-
-try:
-    if os.name == 'nt':
-        from cryptography.hazmat.backends.openssl import backend
-    else:
-        from cryptography.hazmat.backends import default_backend
-    from cryptography.hazmat.primitives.ciphers import Cipher
-    from cryptography.hazmat.primitives.ciphers import algorithms
-    from cryptography.hazmat.primitives.ciphers.modes import GCM
-    encryption_available = True
-except Exception as e:
-    DEP_MSG = 'For encryption of files, ' \
-              'please install python-cryptography!'
-    log.debug('Cryptography Import Error: ' + str(e))
-    log.info('Decryption/Encryption disabled due to errors')
-    encryption_available = False
-
-NS_HINTS = 'urn:xmpp:hints'
-# XEP-0363 (http://xmpp.org/extensions/xep-0363.html)
-NS_HTTPUPLOAD = 'urn:xmpp:http:upload'
-TAGSIZE = 16
-
-jid_to_servers = {}
-iq_ids_to_callbacks = {}
-last_info_query = {}
-max_thumbnail_size = 2048
-max_thumbnail_dimension = 160
-httpuploadurls = {}
-
-
-class HttpuploadPlugin(GajimPlugin):
-
-    @log_calls('HttpuploadPlugin')
-    def init(self):
-        if not encryption_available:
-            self.available_text = DEP_MSG
-        self.config_dialog = None  # HttpuploadPluginConfigDialog(self)
-        self.controls = []
-        self.events_handlers = {}
-        self.events_handlers['agent-info-received'] = (ged.PRECORE,
-                self.handle_agent_info_received)
-        self.events_handlers['raw-iq-received'] = (ged.PRECORE,
-                self.handle_iq_received)
-        self.events_handlers['stanza-message-outgoing'] = (ged.PRECORE,
-                self.handle_message_stanza_out)
-        self.gui_extension_points = {
-            'chat_control_base': (self.connect_with_chat_control,
-                self.disconnect_from_chat_control),
-            'chat_control_base_update_toolbar': (self.update_button_state,
-                None)}
-        self.first_run = True
-
-    def handle_iq_received(self, event):
-        global iq_ids_to_callbacks
-        id_ = event.stanza.getAttr("id")
-        if str(id_) in iq_ids_to_callbacks:
-            try:
-                iq_ids_to_callbacks[str(id_)](event.stanza)
-            except:
-                raise
-            finally:
-                del iq_ids_to_callbacks[str(id_)]
-
-    def handle_agent_info_received(self, event):
-        global jid_to_servers
-        if NS_HTTPUPLOAD in event.features and gajim.jid_is_transport(event.jid):
-            own_jid = gajim.get_jid_without_resource(str(event.stanza.getTo()))
-            jid_to_servers[own_jid] = event.jid        # map own jid to upload component's jid
-            log.info(own_jid + " can do http uploads via component " + event.jid)
-            # update all buttons
-            for base in self.controls:
-                self.update_button_state(base.chat_control)
-
-    @log_calls('HttpuploadPlugin')
-    def handle_message_stanza_out(self, event):
-        try:
-            global httpuploadurls
-            if not event.msg_iq.getTag('body'):
-                return
-            url = event.msg_iq.getBody()
-            if url in httpuploadurls:
-                # httpupload Hint
-                event.msg_iq.addChild('httpupload', namespace=NS_HINTS)
-                del httpuploadurls[url]
-        except Exception as e:
-            log.error(e)
-
-    @log_calls('HttpuploadPlugin')
-    def connect_with_chat_control(self, control):
-        self.chat_control = control
-        base = Base(self, self.chat_control)
-        self.controls.append(base)
-        if self.first_run:
-            # ALT + U
-            gtk.binding_entry_add_signal(control.msg_textview,
-                gtk.keysyms.u, gtk.gdk.MOD1_MASK, 'mykeypress',
-                int, gtk.keysyms.u, gtk.gdk.ModifierType, gtk.gdk.MOD1_MASK)
-            self.first_run = False
-        self.update_button_state(self.chat_control)
-
-    @log_calls('HttpuploadPlugin')
-    def disconnect_from_chat_control(self, chat_control):
-        for control in self.controls:
-            control.disconnect_from_chat_control()
-        self.controls = []
-
-    @log_calls('HttpuploadPlugin')
-    def update_button_state(self, chat_control):
-        global jid_to_servers
-        global iq_ids_to_callbacks
-        global last_info_query
-
-        if gajim.connections[chat_control.account].connection == None and \
-            gajim.get_jid_from_account(chat_control.account) in jid_to_servers:
-            # maybe don't delete this and detect vanished upload components when actually trying to upload something
-            log.info("Deleting %s from jid_to_servers (disconnected)" % gajim.get_jid_from_account(chat_control.account))
-            del jid_to_servers[gajim.get_jid_from_account(chat_control.account)]
-            #pass
-
-        # query info at most every 60 seconds in case something goes wrong
-        if (not chat_control.account in last_info_query or \
-            last_info_query[chat_control.account] + 60 < time.time()) and \
-            not gajim.get_jid_from_account(chat_control.account) in jid_to_servers and \
-            gajim.account_is_connected(chat_control.account):
-            log.info("Account %s: Using dicovery to find jid of httpupload component" % chat_control.account)
-            id_ = gajim.get_an_id()
-            iq = nbxmpp.Iq(
-                typ='get',
-                to=gajim.get_server_from_jid(gajim.get_jid_from_account(chat_control.account)),
-                queryNS="http://jabber.org/protocol/disco#items"
-            )
-            iq.setID(id_)
-            def query_info(stanza):
-                global last_info_query
-                for item in stanza.getTag("query").getTags("item"):
-                    id_ = gajim.get_an_id()
-                    iq = nbxmpp.Iq(
-                        typ='get',
-                        to=item.getAttr("jid"),
-                        queryNS="http://jabber.org/protocol/disco#info"
-                    )
-                    iq.setID(id_)
-                    last_info_query[chat_control.account] = time.time()
-                    gajim.connections[chat_control.account].connection.send(iq)
-            iq_ids_to_callbacks[str(id_)] = query_info
-            gajim.connections[chat_control.account].connection.send(iq)
-            #send disco query to main server jid
-            id_ = gajim.get_an_id()
-            iq = nbxmpp.Iq(
-                typ='get',
-                to=gajim.get_server_from_jid(gajim.get_jid_from_account(chat_control.account)),
-                queryNS="http://jabber.org/protocol/disco#info"
-            )
-            iq.setID(id_)
-            last_info_query[chat_control.account] = time.time()
-            gajim.connections[chat_control.account].connection.send(iq)
-
-        for base in self.controls:
-            if base.chat_control == chat_control:
-                is_supported = gajim.get_jid_from_account(chat_control.account) in jid_to_servers and \
-                    gajim.connections[chat_control.account].connection != None
-                log.info("Account %s: httpupload is_supported: %s" % (str(chat_control.account), str(is_supported)))
-                if not is_supported:
-                    text = _('Your server does not support http uploads')
-                    image_text = text
-                else:
-                    text = _('Send file via http upload')
-                    image_text = _('Send image via http upload')
-                base.button.set_sensitive(is_supported)
-                base.button.set_tooltip_text(text)
-                base.image_button.set_sensitive(is_supported)
-                base.image_button.set_tooltip_text(image_text)
-
-
-class Base(object):
-    def __init__(self, plugin, chat_control):
-        self.dlg = None
-        self.dialog_type = 'file'
-        self.keypress_id = chat_control.msg_textview.connect('mykeypress',
-            self.on_key_press)
-        self.plugin = plugin
-        self.encrypted_upload = False
-        self.chat_control = chat_control
-        actions_hbox = chat_control.xml.get_object('actions_hbox')
-        self.button = gtk.Button(label=None, stock=None, use_underline=True)
-        self.button.set_property('relief', gtk.RELIEF_NONE)
-        self.button.set_property('can-focus', False)
-        self.button.set_sensitive(False)
-        img = gtk.Image()
-        img.set_from_file(self.plugin.local_file_path('httpupload.png'))
-        self.button.set_image(img)
-        self.button.set_tooltip_text(_('Your server does not support http uploads'))
-        self.image_button = gtk.Button(label=None, stock=None, use_underline=True)
-        self.image_button.set_property('relief', gtk.RELIEF_NONE)
-        self.image_button.set_property('can-focus', False)
-        self.image_button.set_sensitive(False)
-        img = gtk.Image()
-        img.set_from_file(self.plugin.local_file_path('image.png'))
-        self.image_button.set_image(img)
-        self.image_button.set_tooltip_text(_('Your server does not support http uploads'))
-        send_button = chat_control.xml.get_object('send_button')
-        send_button_pos = actions_hbox.child_get_property(send_button,
-            'position')
-        actions_hbox.add_with_properties(self.button, 'position',
-            send_button_pos - 2, 'expand', False)
-
-        actions_hbox.add_with_properties(self.image_button, 'position',
-            send_button_pos - 1, 'expand', False)
-
-        file_id = self.button.connect('clicked', self.on_file_button_clicked)
-        image_id = self.image_button.connect('clicked', self.on_image_button_clicked)
-        chat_control.handlers[file_id] = self.button
-        chat_control.handlers[image_id] = self.image_button
-        chat_control.handlers[self.keypress_id] = chat_control.msg_textview
-        self.button.show()
-        self.image_button.show()
-
-    def on_key_press(self, widget, event_keyval, event_keymod):
-        # construct event instance from binding
-        event = gtk.gdk.Event(gtk.gdk.KEY_PRESS)  # it's always a key-press here
-        event.keyval = event_keyval
-        event.state = event_keymod
-        event.time = 0  # assign current time
-
-        if event.keyval != gtk.keysyms.u:
-            return
-        if event.state != gtk.gdk.MOD1_MASK:  # ALT+u
-            return
-        is_supported = gajim.get_jid_from_account(self.chat_control.account) in jid_to_servers and \
-                    gajim.connections[self.chat_control.account].connection != None
-        if not is_supported:
-            from dialogs import WarningDialog
-            WarningDialog('Warning', _('Your server does not support http uploads'),
-                transient_for=self.chat_control.parent_win.window)
-            return
-        self.on_file_button_clicked(widget)
-
-    def disconnect_from_chat_control(self):
-        actions_hbox = self.chat_control.xml.get_object('actions_hbox')
-        actions_hbox.remove(self.button)
-        actions_hbox.remove(self.image_button)
-        if self.keypress_id in self.chat_control.handlers and \
-            self.chat_control.handlers[self.keypress_id].handler_is_connected(self.keypress_id):
-            self.chat_control.handlers[self.keypress_id].disconnect(self.keypress_id)
-            del self.chat_control.handlers[self.keypress_id]
-
-    def encryption_activated(self):
-        if not encryption_available:
-            return False
-        jid = self.chat_control.contact.jid
-        account = self.chat_control.account
-        for plugin in gajim.plugin_manager.active_plugins:
-            if type(plugin).__name__ == 'OmemoPlugin':
-                omemo = plugin
-                break
-        if omemo:
-            state = omemo.get_omemo_state(account)
-            log.info('Encryption is: ' +
-                      str(state.encryption.is_active(jid)))
-            return state.encryption.is_active(jid)
-        log.info('Encryption is: False / OMEMO not found')
-        return False
-
-    def on_file_dialog_ok(self, widget, path_to_file=None):
-        global jid_to_servers
-
-        try:
-            self.encrypted_upload = self.encryption_activated()
-        except Exception as e:
-            log.debug(e)
-            self.encrypted_upload = False
-
-        if not path_to_file:
-            path_to_file = self.dlg.get_filename()
-            if not path_to_file:
-                self.dlg.destroy()
-                return
-            path_to_file = gtkgui_helpers.decode_filechooser_file_paths(
-                    (path_to_file,))[0]
-        self.dlg.destroy()
-        if not os.path.exists(path_to_file):
-            return
-        if self.encrypted_upload:
-            filesize = os.path.getsize(path_to_file) + TAGSIZE  # in bytes
-        else:
-            filesize = os.path.getsize(path_to_file)
-        invalid_file = False
-        msg = ''
-        if os.path.isfile(path_to_file):
-            stat = os.stat(path_to_file)
-            if stat[6] == 0:
-                invalid_file = True
-                msg = _('File is empty')
-        else:
-            invalid_file = True
-            msg = _('File does not exist')
-        if invalid_file:
-            ErrorDialog(_('Could not open file'), msg, transient_for=self.chat_control.parent_win.window)
-            return
-
-        mime_type = mimetypes.MimeTypes().guess_type(path_to_file)[0]
-        if not mime_type:
-            mime_type = 'application/octet-stream'  # fallback mime type
-        log.info("Detected MIME Type of file: " + str(mime_type))
-        progress_messages = Queue(8)
-        progress_window = ProgressWindow(_('HTTP Upload'), _('Requesting HTTP Upload Slot...'), progress_messages, self.plugin)
-        def upload_file(stanza):
-            slot = stanza.getTag("slot")
-            if not slot:
-                progress_window.close_dialog()
-                log.error("got unexpected stanza: "+str(stanza))
-                error = stanza.getTag("error")
-                if error and error.getTag("text"):
-                    ErrorDialog(_('Could not request upload slot'), 
-                                _('Got unexpected response from server: %s') % str(error.getTagData("text")),
-                                transient_for=self.chat_control.parent_win.window)
-                else:
-                    ErrorDialog(_('Could not request upload slot'), 
-                                _('Got unexpected response from server (protocol mismatch??)'),
-                                transient_for=self.chat_control.parent_win.window)
-                return
-
-            try:
-                if self.encrypted_upload:
-                    key = os.urandom(32)
-                    iv = os.urandom(16)
-                    data = StreamFileWithProgress(path_to_file,
-                                                  "rb",
-                                                  progress_window.update_progress,
-                                                  self.encrypted_upload, key, iv)
-                else:
-                    data = StreamFileWithProgress(path_to_file,
-                                                  "rb",
-                                                  progress_window.update_progress)
-            except:
-                progress_window.close_dialog()
-                ErrorDialog(_('Could not open file'), 
-                            _('Exception raised while opening file (see error log for more information)'),
-                            transient_for=self.chat_control.parent_win.window)
-                raise       # fill error log with useful information
-
-            put = slot.getTag("put")
-            get = slot.getTag("get")
-            if not put or not get:
-                progress_window.close_dialog()
-                log.error("got unexpected stanza: " + str(stanza))
-                ErrorDialog(_('Could not request upload slot'), 
-                            _('Got unexpected response from server (protocol mismatch??)'),
-                            transient_for=self.chat_control.parent_win.window)
-                return
-
-            def upload_complete(response_code):
-                if response_code == 0:
-                    return      # Upload was aborted
-                if response_code >= 200 and response_code < 300:
-                    log.info("Upload completed successfully")
-                    xhtml = None
-                    is_image = mime_type.split('/', 1)[0] == 'image'
-                    if (not isinstance(self.chat_control, chat_control.ChatControl) or not self.chat_control.gpg_is_active) and \
-                        self.dialog_type == 'image' and is_image and not self.encrypted_upload:
-
-                        progress_messages.put(_('Calculating (possible) image thumbnail...'))
-                        thumb = None
-                        quality_steps = (100, 80, 60, 50, 40, 35, 30, 25, 23, 20, 18, 15, 13, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1)
-                        with open(path_to_file, 'rb') as content_file:
-                            thumb = urllib2.quote(base64.standard_b64encode(content_file.read()), '')
-                        if thumb and len(thumb) < max_thumbnail_size:
-                            quality = 100
-                            log.info("Image small enough (%d bytes), not resampling" % len(thumb))
-                        elif pil_available:
-                            log.info("PIL available, using it for image downsampling")
-                            try:
-                                for quality in quality_steps:
-                                    thumb = Image.open(path_to_file)
-                                    thumb.thumbnail((max_thumbnail_dimension, max_thumbnail_dimension), Image.ANTIALIAS)
-                                    output = BytesIO()
-                                    thumb.save(output, format='JPEG', quality=quality, optimize=True)
-                                    thumb = output.getvalue()
-                                    output.close()
-                                    thumb = urllib2.quote(base64.standard_b64encode(thumb), '')
-                                    log.debug("pil thumbnail jpeg quality %d produces an image of size %d..." % (quality, len(thumb)))
-                                    if len(thumb) < max_thumbnail_size:
-                                        break
-                            except:
-                                thumb = None
-                        else:
-                            thumb = None
-                        if not thumb:
-                            log.info("PIL not available, using GTK for image downsampling")
-                            temp_file = None
-                            try:
-                                with open(path_to_file, 'rb') as content_file:
-                                    thumb = content_file.read()
-                                loader = gtk.gdk.PixbufLoader()
-                                loader.write(thumb)
-                                loader.close()
-                                pixbuf = loader.get_pixbuf()
-                                scaled_pb = self.get_pixbuf_of_size(pixbuf, max_thumbnail_dimension)
-                                handle, temp_file = tempfile.mkstemp(suffix='.jpeg', prefix='gajim_httpupload_scaled_tmp', dir=gajim.TMP)
-                                log.debug("Saving temporary jpeg image to '%s'..." % temp_file)
-                                os.close(handle)
-                                for quality in quality_steps:
-                                    scaled_pb.save(temp_file, "jpeg", {"quality": str(quality)})
-                                    with open(temp_file, 'rb') as content_file:
-                                        thumb = content_file.read()
-                                    thumb = urllib2.quote(base64.standard_b64encode(thumb), '')
-                                    log.debug("gtk thumbnail jpeg quality %d produces an image of size %d..." % (quality, len(thumb)))
-                                    if len(thumb) < max_thumbnail_size:
-                                        break
-                            except:
-                                thumb = None
-                            finally:
-                                if temp_file:
-                                    os.unlink(temp_file)
-                        if thumb:
-                            if len(thumb) > max_thumbnail_size:
-                                log.info("Couldn't compress image enough, not sending any thumbnail")
-                            else:
-                                log.info("Using thumbnail jpeg quality %d (image size: %d bytes)" % (quality, len(thumb)))
-                                xhtml = '<body><br/><a href="%s"> <img alt="%s" src="data:image/png;base64,%s"/> </a></body>' % \
-                                    (get.getData(), get.getData(), thumb)
-                    progress_window.close_dialog()
-                    id_ = gajim.get_an_id()
-                    def add_oob_tag():
-                        pass
-                    if self.encrypted_upload:
-                        keyAndIv = '#' + binascii.hexlify(iv) + binascii.hexlify(key)
-                        self.chat_control.send_message(message=get.getData() + keyAndIv, xhtml=None)
-                    else:
-                        global httpuploadurls
-                        url = get.getData()
-                        httpuploadurls[url] = True
-                        self.chat_control.send_message(message=url, xhtml=xhtml)
-                    self.chat_control.msg_textview.grab_focus()
-                else:
-                    progress_window.close_dialog()
-                    log.error("got unexpected http upload response code: " + str(response_code))
-                    ErrorDialog(_('Could not upload file'),
-                                _('Got unexpected http response code from server: ') + str(response_code),
-                                transient_for=self.chat_control.parent_win.window)
-            
-            def uploader():
-                progress_messages.put(_('Uploading file via HTTP...'))
-                try:
-                    headers = {'User-Agent': 'Gajim %s' % gajim.version,
-                               'Content-Type': mime_type}
-                    request = urllib2.Request(put.getData().encode("utf-8"), data=data, headers=headers)
-                    request.get_method = lambda: 'PUT'
-                    log.debug("opening urllib2 upload request...")
-                    transfer = urllib2.urlopen(request, timeout=30)
-                    log.debug("urllib2 upload request done, response code: " + str(transfer.getcode()))
-                    return transfer.getcode()
-                except UploadAbortedException:
-                    log.info("Upload aborted")
-                except:
-                    progress_window.close_dialog()
-                    ErrorDialog(_('Could not upload file'),
-                                _('Got unexpected exception while uploading file (see error log for more information)'),
-                                transient_for=self.chat_control.parent_win.window)
-                    raise       # fill error log with useful information
-                return 0
-
-            log.info("Uploading file to '%s'..." % str(put.getData()))
-            log.info("Please download from '%s' later..." % str(get.getData()))
-
-            gajim.thread_interface(uploader, [], upload_complete)
-
-        is_supported = gajim.get_jid_from_account(self.chat_control.account) in jid_to_servers and \
-                    gajim.connections[self.chat_control.account].connection != None
-        log.info("jid_to_servers of %s: %s ; connection: %s" % (gajim.get_jid_from_account(self.chat_control.account), str(jid_to_servers[gajim.get_jid_from_account(self.chat_control.account)]), str(gajim.connections[self.chat_control.account].connection)))
-        if not is_supported:
-            progress_window.close_dialog()
-            log.error("upload component vanished, account got disconnected??")
-            ErrorDialog(_('Your server does not support http uploads or you just got disconnected.\nPlease try to reconnect or reopen the chat window to fix this.'),
-                transient_for=self.chat_control.parent_win.window)
-            return
-
-        # create iq for slot request
-        id_ = gajim.get_an_id()
-        iq = nbxmpp.Iq(
-            typ='get',
-            to=jid_to_servers[gajim.get_jid_from_account(self.chat_control.account)],
-            queryNS=None
-        )
-        iq.setID(id_)
-        request = iq.addChild(
-            name="request",
-            namespace=NS_HTTPUPLOAD
-        )
-        filename = request.addChild(
-            name="filename",
-        )
-        filename.addData(os.path.basename(path_to_file))
-        size = request.addChild(
-            name="size",
-        )
-        size.addData(filesize)
-        content_type = request.addChild(
-            name="content-type",
-        )
-        content_type.addData(mime_type)
-
-        # send slot request and register callback
-        log.debug("sending httpupload slot request iq...")
-        iq_ids_to_callbacks[str(id_)] = upload_file
-        gajim.connections[self.chat_control.account].connection.send(iq)
-
-        self.chat_control.msg_textview.grab_focus()
-
-    def on_file_button_clicked(self, widget):
-        self.dialog_type = 'file'
-        self.dlg = FileChooserDialog(on_response_ok=self.on_file_dialog_ok, on_response_cancel=None,
-            title_text = _('Choose file to send'), action = gtk.FILE_CHOOSER_ACTION_OPEN,
-            buttons = (gtk.STOCK_CANCEL, gtk.RESPONSE_CANCEL, gtk.STOCK_OPEN, gtk.RESPONSE_OK),
-            default_response = gtk.RESPONSE_OK,)
-
-    def on_image_button_clicked(self, widget):
-        self.dialog_type = 'image'
-        self.dlg = ImageChooserDialog(on_response_ok=self.on_file_dialog_ok, on_response_cancel=None)
-
-    def get_pixbuf_of_size(self, pixbuf, size):
-        # Creates a pixbuf that fits in the specified square of sizexsize
-        # while preserving the aspect ratio
-        # Returns scaled_pixbuf
-        image_width = pixbuf.get_width()
-        image_height = pixbuf.get_height()
-
-        if image_width > image_height:
-            if image_width > size:
-                image_height = int(size / float(image_width) * image_height)
-                image_width = int(size)
-        else:
-            if image_height > size:
-                image_width = int(size / float(image_height) * image_width)
-                image_height = int(size)
-
-        crop_pixbuf = pixbuf.scale_simple(image_width, image_height,
-            gtk.gdk.INTERP_BILINEAR)
-        return crop_pixbuf
-
-
-class StreamFileWithProgress(file):
-    def __init__(self, path, mode, callback=None,
-                 encrypted_upload=False, key=None, iv=None, *args):
-        file.__init__(self, path, mode)
-        self.encrypted_upload = encrypted_upload
-        self.seek(0, os.SEEK_END)
-        if self.encrypted_upload:
-            if os.name == 'nt':
-                self.backend = backend
-            else:
-                self.backend = default_backend()
-            self.encryptor = Cipher(
-                algorithms.AES(key),
-                GCM(iv),
-                backend=self.backend).encryptor()
-            self._total = self.tell() + TAGSIZE
-        else:
-            self._total = self.tell()
-        self.seek(0)
-        self._callback = callback
-        self._args = args
-        self._seen = 0
-
-    def __len__(self):
-        return self._total
-
-    def read(self, size):
-        if self.encrypted_upload:
-            data = file.read(self, size)
-            if len(data) > 0:
-                data = self.encryptor.update(data)
-                self._seen += len(data)
-                if (self._seen + TAGSIZE) == self._total:
-                    self.encryptor.finalize()
-                    data += self.encryptor.tag
-                    self._seen += TAGSIZE
-                if self._callback:
-                    self._callback(self._seen, self._total, *self._args)
-            return data
-        else:
-            data = file.read(self, size)
-            self._seen += len(data)
-            if self._callback:
-                self._callback(self._seen, self._total, *self._args)
-            return data
-
-
-class ProgressWindow:
-    def __init__(self, title_text, during_text, messages_queue, plugin):
-        self.plugin = plugin
-        self.xml = gtkgui_helpers.get_gtk_builder(self.plugin.local_file_path('upload_progress_dialog.ui'))
-        self.messages_queue = messages_queue
-        self.dialog = self.xml.get_object('progress_dialog')
-        self.label = self.xml.get_object('label')
-        self.cancel_button = self.xml.get_object('close_button')
-        self.label.set_markup('<big>' + during_text + '</big>')
-        self.progressbar = self.xml.get_object('progressbar')
-        self.progressbar.set_text("")
-        self.dialog.set_title(title_text)
-        self.dialog.set_geometry_hints(min_width=400, min_height=96)
-        self.dialog.set_position(gtk.WIN_POS_CENTER_ON_PARENT)
-        self.dialog.show_all()
-        self.xml.connect_signals(self)
-
-        self.stopped = False
-        self.pulse_progressbar_timeout_id = gobject.timeout_add(100, self.pulse_progressbar)
-        self.process_messages_queue_timeout_id = gobject.timeout_add(100, self.process_messages_queue)
-
-
-    def pulse_progressbar(self):
-        if self.dialog:
-            self.progressbar.pulse()
-            return True # loop forever
-        return False
-
-    def process_messages_queue(self):
-        if not self.messages_queue.empty():
-            self.label.set_markup('<big>' + self.messages_queue.get() + '</big>')
-        if self.dialog:
-            return True # loop forever
-        return False
-
-    def on_progress_dialog_delete_event(self, widget, event):
-        self.stopped = True
-        if self.pulse_progressbar_timeout_id:
-            gobject.source_remove(self.pulse_progressbar_timeout_id)
-        gobject.source_remove(self.process_messages_queue_timeout_id)
-
-    def on_cancel(self, widget):
-        self.stopped = True
-        if self.pulse_progressbar_timeout_id:
-            gobject.source_remove(self.pulse_progressbar_timeout_id)
-        gobject.source_remove(self.process_messages_queue_timeout_id)
-        self.dialog.destroy()
-
-    def update_progress(self, seen, total):
-        if self.stopped == True:
-            raise UploadAbortedException
-        if self.pulse_progressbar_timeout_id:
-            gobject.source_remove(self.pulse_progressbar_timeout_id)
-            self.pulse_progressbar_timeout_id = None
-        pct = (float(seen) / total) * 100.0
-        self.progressbar.set_fraction(float(seen) / total)
-        self.progressbar.set_text(str(int(pct)) + "%")
-        log.debug('upload progress: %.2f%% (%d of %d bytes)' % (pct, seen, total))
-
-    def close_dialog(self):
-        self.on_cancel(None)
-
-class UploadAbortedException(Exception):
-    def __str__(self):
-        return "Upload Aborted"