microblogger.py

#!/usr/bin/env python2
# -*- coding: utf-8 -*-

import oauth2 as oauth

import base64
import hashlib
import hmac
import httplib2
import libxml2
import os
import random
import time
import urllib
import urllib2
import urlparse
import webbrowser

from gi.repository import Gdk
from gi.repository import Gio
from gi.repository import GLib
from gi.repository import GObject
from gi.repository import Gtk
from gi.repository import Peas
from gi.repository import PeasGtk
from gi.repository import RB

UI_STRING = '''
<ui>
    <menubar name="MenuBar">
        <menu name="ViewMenu" action="View">
            <menuitem name="MicroBlogger" action="MicroBlogger"/>
        </menu>
    </menubar>
</ui>
'''

class Microblogger(GObject.Object, Peas.Activatable):
    __gtype_name = 'MicroBloggerPlugin'
    object = GObject.property (type = GObject.Object)

    def __init__(self):
        GObject.Object.__init__(self)

        self.settings = Gio.Settings("ir.aliva.microblogger")

    def do_activate(self):
        self.playing_entry = None

        shell = self.object
        self.action = Gtk.Action (name='MicroBlogger', label=_('Show MicroBlogger Message Box'),
                      tooltip=_(''),
                      stock_id='')
        self.action_id = self.action.connect ('activate', self.show_message_box, shell)
        self.action_group = Gtk.ActionGroup (name='MicroBloggerPluginActions')
        self.action_group.add_action_with_accel (self.action, "<control>M")

        uim = shell.props.ui_manager
        uim.insert_action_group (self.action_group, 0)
        self.ui_id = uim.add_ui_from_string (UI_STRING)
        uim.ensure_update ()

        self.settings.connect('changed', self.on_settings_changed)
        self.box = Gtk.HBox()
        self.entry = Gtk.Entry()
        self.length = Gtk.Label()
        self.combo = Gtk.ComboBoxText()
        self.send = Gtk.Button('Send!')
        self.cancel = Gtk.Button(stock=Gtk.STOCK_CANCEL)

        self.entry.connect('key_press_event', self.on_entry_key_press_event)
        self.entry.connect('changed', self.check_send_button)
        self.entry.connect('activate', self.post)
        self.combo.connect('changed', self.check_send_button)
        self.send.connect('clicked', self.post)
        self.cancel.connect('clicked', self.on_cancel_clicked)

        self.box.pack_start(self.entry , True , True, 0)
        self.box.pack_start(self.length, False, True, 0)
        self.box.pack_start(self.combo , False, True, 0)
        self.box.pack_start(self.send  , False, True, 0)
        self.box.pack_start(self.cancel, False, True, 0)

        shell.add_widget (self.box, RB.ShellUILocation.MAIN_TOP, False, True)
        self.check_send_button(None)
        self.on_settings_changed(self.settings, 'accounts')

    def do_deactivate(self):
        self.box.destroy()

        shell = self.object

        uim = shell.props.ui_manager
        uim.remove_ui (self.ui_id)
        uim.remove_action_group (self.action_group)

        self.action_group = None
        self.action = None

    def on_settings_changed(self, settings, key):
        if key == 'accounts':
            self.combo.remove_all()
            for account in self.settings['accounts']:
                self.combo.append_text(account[0])
            self.entry.set_text('Add account from plugin prefrences')

        self.entry.set_text('')
        has_account = len(self.settings['accounts'])
        self.entry.set_sensitive(has_account)
        self.combo.set_sensitive(has_account)

    def on_cancel_clicked(self, button):
        self.box.hide()

    def on_entry_key_press_event(self, entry, event):
        if Gdk.keyval_from_name('Escape') == event.keyval:
            self.on_cancel_clicked(None)

    def check_send_button(self, widget):
        length = self.entry.get_text_length()
        self.length.set_text(str(140-length))

        can_send = length and (self.combo.get_active() != -1)
        self.send.set_sensitive(can_send)

        text = self.entry.get_text()

        if self.playing_entry != None:
            playing_entry = self.playing_entry
            items={
                '{title}' :playing_entry.get_string(RB.RhythmDBPropType.TITLE),
                '{genre}' :playing_entry.get_string(RB.RhythmDBPropType.GENRE),
                '{artist}':playing_entry.get_string(RB.RhythmDBPropType.ARTIST),
                '{album}' :playing_entry.get_string(RB.RhythmDBPropType.ALBUM),
                '{rate}'  :playing_entry.get_double(RB.RhythmDBPropType.RATING),
                '{year}'  :playing_entry.get_ulong (RB.RhythmDBPropType.YEAR),
                '{pcount}':playing_entry.get_ulong (RB.RhythmDBPropType.PLAY_COUNT),
            }

            for item in items:
                # if has tag
                tmp=str(items[item])
                tmp=self.fix_tag(tmp)
                text=text.replace('#'+item, '#'+tmp)

                # if hasn't tag
                text=text.replace(item, str(items[item]))
        self.entry.set_text(text)

        return can_send

    def show_message_box(self, action, shell):
        self.box.show_all()
        self.entry.grab_focus()

        shell = self.object
        self.playing_entry = shell.props.shell_player.get_playing_entry()

        self.entry.set_text(self.settings['template'])

        id = 0
        self.combo.set_active(0)
        for account in self.settings['accounts']:
            if self.settings['last-used'] == account[0]:
                self.combo.set_active(id)
            id+=1

    def post(self, widget):
        if self.check_send_button(None) == False:
            return

        self.box.set_sensitive(False)

        while Gtk.events_pending():
            Gtk.main_iteration()

        active = self.combo.get_active()
        request = Requests(None)
        account  = self.settings['accounts'][active]

        if self. playing_entry == None:
            title = artist = album = ''
        else:
            title  = self.playing_entry.get_string(RB.RhythmDBPropType.TITLE)
            artist = self.playing_entry.get_string(RB.RhythmDBPropType.ARTIST)
            album  = self.playing_entry.get_string(RB.RhythmDBPropType.ALBUM)

        result = request.post(account, self.entry, title, album, artist)

        self.box.set_sensitive(True)

        while Gtk.events_pending():
            Gtk.main_iteration()

        if result == True:
            self.entry.set_text('Done!')
            self.on_cancel_clicked(None)
            #GLib.timeout_add_seconds(5, self.on_cancel_clicked, None

    def fix_tag(self, text):
        chars='!@#$%^&*()-+=\\|/[]{};:\'"<>,? '

        for c in chars:
            text=text.replace(c, '_')

        for c in ('____', '___', '__'):
            text=text.replace(c, '_')

        return text.strip(chars+'_')

class MicrobloggerConfigurable(GObject.Object, PeasGtk.Configurable):
    __gtype_name__ = 'MicrobloggerConfigurable'

    def __init__(self):
        self.settings = Gio.Settings("ir.aliva.microblogger")

    def do_create_configure_widget(self):
        ui_file = os.path.join(os.path.dirname(__file__), 'microblogger-prefs.ui')

        self.builder = Gtk.Builder()
        self.builder.add_from_file(ui_file)

        self.builder.get_object('template').set_text(str(self.settings['template']))
        self.builder.get_object('template').connect('changed', self.on_template_changed)

        self.builder.get_object('add_account').connect('clicked', self.on_add_account_clicked)
        self.builder.get_object('del_account').connect('clicked', self.on_del_account_clicked)

        self.builder.get_object('identica').connect('toggled', self.on_type_change)
        self.builder.get_object('twitter').connect('toggled', self.on_type_change)
        self.builder.get_object('getglue').connect('toggled', self.on_type_change)

        self.builder.get_object('authorize').connect('clicked', self.on_authorize_clicked)
        self.builder.get_object('exchange').connect('clicked', self.on_exchange_clicked)
        self.builder.get_object('save').connect('clicked', self.on_save_clicked)
        self.builder.get_object('alias').connect('changed', self.on_alias_changed)

        self.builder.get_object('cancel').connect('clicked', self.on_cancel_clicked)

        model = Gtk.ListStore(GObject.TYPE_STRING, GObject.TYPE_STRING)
        tree = self.builder.get_object('treeview')
        tree.set_model(model)

        renderer = Gtk.CellRendererText()
        column = Gtk.TreeViewColumn('Alias', renderer, text=0)
        tree.append_column(column)

        renderer = Gtk.CellRendererText()
        column = Gtk.TreeViewColumn('Account', renderer, text=1)
        tree.append_column(column)

        self.update_accounts_list()

        self.request = Requests(self.builder.get_object('note'))

        notebook = self.builder.get_object('general')
        notebook.set_show_tabs(False)
        return notebook

    def update_accounts_list(self):
        model = self.builder.get_object('treeview').get_model()
        model.clear()

        for account in self.settings['accounts']:
            iter = model.append()
            model.set_value(iter, 0, account[0])
            model.set_value(iter, 1, account[1])


    def on_add_account_clicked(self, button):
        self.update_accounts_list()
        self.builder.get_object('general').set_current_page(1)

    def on_del_account_clicked(self, button):
        tree = self.builder.get_object('treeview')
        selection = tree.get_selection()
        model, iter = selection.get_selected()

        if iter == None:
            return

        alias = model.get_value(iter, 0)

        accounts = []

        for account in self.settings['accounts']:
            if account[0] != alias:
                accounts.append(account)

        self.settings['accounts'] = accounts

        model.remove(iter)



    def on_cancel_clicked(self, button):
        self.on_type_change(None)
        self.builder.get_object('general').set_current_page(0)

    def on_authorize_clicked(self, button):
        if self.builder.get_object('identica').get_active():
            account = 'identi.ca'
        elif self.builder.get_object('twitter').get_active():
            account = 'twitter'
        else:
            account = 'getglue'

        result = self.request.authorize(account)

        if result:
            self.builder.get_object('authorize').set_sensitive(False)
            self.builder.get_object('pin').set_sensitive(True)
            self.builder.get_object('exchange').set_sensitive(True)

    def on_exchange_clicked(self, button):
        pin_code = self.builder.get_object('pin').get_text()

        result = self.request.exchange(pin_code)

        if result:
            self.builder.get_object('alias').set_sensitive(True)
            self.builder.get_object('pin').set_sensitive(False)
            self.builder.get_object('exchange').set_sensitive(False)

    def on_type_change(self, radio):
        self.builder.get_object('authorize').set_sensitive(True)
        self.builder.get_object('pin').set_text('')
        self.builder.get_object('pin').set_sensitive(False)
        self.builder.get_object('exchange').set_sensitive(False)
        self.builder.get_object('alias').set_text('')
        self.builder.get_object('alias').set_sensitive(False)

    def on_alias_changed(self, entry):
        r = entry.get_text_length() > 0 # and unique
        self.builder.get_object('save').set_sensitive(r)

    def on_save_clicked(self, button):
        new_account = (self.builder.get_object('alias').get_text(),
                       self.request.account,
                       self.request.access_token,
                       self.request.access_token_secret)
        accounts = self.settings['accounts']
        accounts.append(new_account)
        self.settings['accounts']  = accounts
        self.on_cancel_clicked(None)

    def on_template_changed(self, entry):
        text = self.builder.get_object('template').get_text()
        if len(text):
            self.settings['template'] = text
        else:
            self.settings['template'] = "[Rhythmbox] {title} by #{artist} from #{album}"

class Requests:
    IDENTICA = {
        'key'   :'NzljNWU2MDFjNmQzMTU0ZDRhMTkwMTRmZmI1MWU2Zjk=',
        'secret':'YzgyYmJiZDg3NWVlYmM2ZWZkODA3OTEwYjg3M2VhMDk=',
        'request_token':'https://identi.ca/api/oauth/request_token?oauth_callback=oob',
        'access_token' :'https://identi.ca/api/oauth/access_token',
        'authorization':'https://identi.ca/api/oauth/authorize',
        'post':'https://identi.ca/api/statuses/update.json',
        }

    TWITTER = {
         'key'   :'NlFmM0JtVmpETk1UOUlYek9oa1E0Zw==',
         'secret':'QVd6SnBldWNvM0dPU0pXRlpGcGJpeXlJOGNlSnRWb1k4TmRZdHQzVVpn',
         'request_token':'https://api.twitter.com/oauth/request_token',
         'access_token' :'https://api.twitter.com/oauth/access_token',
         'authorization':'https://api.twitter.com/oauth/authorize',
         'post': 'https://api.twitter.com/1.1/statuses/update.json',
    }

    GETGLUE = {
        'key'   :'YzAzMGU0NGUxZmJmNzllZWU4Zjg2YjA0ZDAzNGYxZWI=',
        'secret':'NWEyZjc5M2FhMGVlNTBhNWM5MWEwN2VhYzhhYjBmNmI=',
        'request_token':'http://api.getglue.com/oauth/request_token',
        'access_token' :'http://api.getglue.com/oauth/access_token',
        'authorization':'http://getglue.com/oauth/authorize',
        'post': 'http://api.getglue.com/v2/user/addCheckin?',
    }

    def __init__(self, note):
        self.note_label = note

        self.consumer = None
        self.request_token = None
        self.api = None
        self.account = None

        #import socks
        #self.proxy_info = httplib2.ProxyInfo(socks.PROXY_TYPE_SOCKS5, 'localhost', 71)
        self.proxy_info = None

    def authorize(self, account):
        self.account = account

        if account == 'twitter':
            self.api = self.TWITTER
        elif account == 'identi.ca':
            self.api = self.IDENTICA
        else:
            self.api = self.GETGLUE

        self.request_token = None

        key = base64.b64decode(self.api['key'])
        secret = base64.b64decode(self.api['secret'])

        self.consumer = oauth.Consumer(key, secret)
        client = oauth.Client(self.consumer, proxy_info=self.proxy_info)

        resp, content = client.request(self.api['request_token'])

        if resp['status'] != '200':
            self.note_label.set_text(content)
            return False

        self.request_token = dict(urlparse.parse_qsl(content))

        url = "%s?oauth_token=%s" % (self.api['authorization'] , self.request_token['oauth_token'])
        self.note_label.set_markup('Opening authorize link in default web browser.')
        webbrowser.open_new(url)
        return True

    def exchange(self, pin_code):
        token = oauth.Token(self.request_token['oauth_token'], self.request_token['oauth_token_secret'])
        token.set_verifier(pin_code)

        client = oauth.Client(self.consumer, token, proxy_info=self.proxy_info)

        resp, content = client.request(self.api['access_token'], "POST")

        if resp['status'] != '200':
            self.note_label.set_text(content)
            return False

        access_token = dict(urlparse.parse_qsl(content))

        self.access_token = access_token['oauth_token']
        self.access_token_secret = access_token['oauth_token_secret']

        self.note_label.set_text('Done! Choose an alias and save')
        return True

    def post(self, account, entry, title, album, artist):
        text = entry.get_text()
        entry.set_text('Wait! (This Box will hide if done!')

        while Gtk.events_pending():
            Gtk.main_iteration()

        if account[1] == 'twitter':
            api = self.TWITTER
        elif account[1] == 'identi.ca':
            api = self.IDENTICA
        else:
            api = self.GETGLUE

        key = base64.b64decode(api['key'])
        secret = base64.b64decode(api['secret'])

        if api == self.GETGLUE:
            params={
                'app':"Rhythmbox",
                'source':"https://github.com/aliva/rhythmbox-microblogger",
                'objectId':'recording_artists/'+artist.lower().replace(' ', '_'),
                'comment':(title+" from "+album)[:140]
            }
            consumer = oauth.Consumer(key, secret)
            token = oauth.Token(account[2], account[3])
            client = oauth.Client(consumer, token, proxy_info=self.proxy_info)
            link=api['post']+urllib.urlencode(params)

            resp, content = client.request(link, 'GET')

            if resp['status'] != '200':
                doc=libxml2.parseDoc(content)
                code=doc.xpathEval("/adaptiveblue/error/code")[0].content
                if code=='302':
                    err='Artist not found'
                else:
                    err=code
                entry.set_text(' ERR: %s' % err)
        else:
            params = {
                'oauth_consumer_key' : key,
                'oauth_signature_method' : 'HMAC-SHA1',
                'oauth_timestamp' : str(int(time.time())),
                'oauth_nonce' : str(random.getrandbits(64)),
                'oauth_token' : account[2],
            }

            params['status'] = urllib.quote(text, '')
            params['oauth_signature'] = hmac.new(
                '%s&%s' % (secret, account[3]),
                '&'.join([
                    'POST',
                    urllib.quote(api['post'], ''),
                    urllib.quote('&'.join(['%s=%s' % (x, params[x])
                                           for x in sorted(params)]), '')
                    ]),
                hashlib.sha1).digest().encode('base64').strip()
            del params['status']

            # post with oauth token
            req = urllib2.Request(api['post'], data = urllib.urlencode(params))
            req.add_data(urllib.urlencode({'status' :text}))
            req.add_header('Authorization', 'OAuth %s' % ', '.join(
                ['%s="%s"' % (x, urllib.quote(params[x], '')) for x in params]))

            try:
                urllib2.urlopen(req)
            except urllib2.URLError as err:
                entry.set_text('Err: %s' % err)
                return False

            return True