/usr/lib/python2.7/dist-packages/mate_invest/quotes.py is in mate-applets 1.12.1-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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from mate_invest.defs import GTK_API_VERSION
import gi
gi.require_version("Gtk", GTK_API_VERSION)
from gi.repository import Gtk
from gi.repository import Gdk
from gi.repository import GdkPixbuf
from gi.repository import GObject
from gettext import gettext as _
import csv
import locale
from urllib import urlopen
import datetime
from threading import Thread
import mate_invest, mate_invest.about, mate_invest.chart
import currencies
CHUNK_SIZE = 512*1024 # 512 kB
AUTOREFRESH_TIMEOUT = 15*60*1000 # 15 minutes
QUOTES_URL="http://finance.yahoo.com/d/quotes.csv?s=%(s)s&f=snc4l1d1t1c1ohgv&e=.csv"
# Sample (09/2/2010): "UCG.MI","UNICREDIT","EUR","UCG.MI",1.9410,"2/9/2010","6:10am",+0.0210,1.9080,1.9810,1.8920,166691232
QUOTES_CSV_FIELDS=["ticker", "label", "currency", ("trade", float), "date", "time", ("variation", float), ("open", float), ("high", float), ("low", float), ("volume", int)]
# based on http://www.johnstowers.co.nz/blog/index.php/2007/03/12/threading-and-pygtk/
class _IdleObject(GObject.GObject):
"""
Override GObject.GObject to always emit signals in the main thread
by emmitting on an idle handler
"""
def __init__(self):
GObject.GObject.__init__(self)
def emit(self, *args):
GObject.idle_add(GObject.GObject.emit,self,*args)
class QuotesRetriever(Thread, _IdleObject):
"""
Thread which uses gobject signals to return information
to the GUI.
"""
__gsignals__ = {
"completed": (
GObject.SignalFlags.RUN_LAST, None, []),
# FIXME: We don't monitor progress, yet ...
#"progress": (
# GObject.SignalFlags.RUN_LAST, None, [
# GObject.TYPE_FLOAT]) #percent complete
}
def __init__(self, tickers):
Thread.__init__(self)
_IdleObject.__init__(self)
self.tickers = tickers
self.retrieved = False
self.data = []
self.currencies = []
mate_invest.debug("QuotesRetriever created");
def run(self):
mate_invest.debug("QuotesRetriever started");
quotes_url = QUOTES_URL % {"s": self.tickers}
try:
quotes_file = urlopen(quotes_url, proxies = mate_invest.PROXY)
self.data = quotes_file.read ()
quotes_file.close ()
except Exception, msg:
mate_invest.debug("Error while retrieving quotes data (url = %s): %s" % (quotes_url, msg))
else:
self.retrieved = True
self.emit("completed")
class QuoteUpdater(Gtk.ListStore):
updated = False
last_updated = None
quotes_valid = False
timeout_id = None
SYMBOL, LABEL, CURRENCY, TICKER_ONLY, BALANCE, BALANCE_PCT, VALUE, VARIATION_PCT, PB = range(9)
def __init__ (self, change_icon_callback, set_tooltip_callback):
Gtk.ListStore.__init__ (self, GObject.TYPE_STRING, GObject.TYPE_STRING, GObject.TYPE_STRING, bool, float, float, float, float, GdkPixbuf.Pixbuf)
self.set_update_interval(AUTOREFRESH_TIMEOUT)
self.change_icon_callback = change_icon_callback
self.set_tooltip_callback = set_tooltip_callback
self.set_sort_column_id(1, Gtk.SortType.ASCENDING)
self.load_quotes() # read the last cached quotes file
self.refresh() # download a new quotes file, this may fail if disconnected
# tell the network manager to notify me when network status changes
mate_invest.nm.set_statechange_callback(self.nm_state_changed)
# loads the cached csv file and its last-modification-time as self.last_updated
def load_quotes(self):
mate_invest.debug("Loading quotes");
try:
f = open(mate_invest.QUOTES_FILE, 'r')
data = f.readlines()
f.close()
self.populate(self.parse_yahoo_csv(csv.reader(data)))
self.updated = True
self.last_updated = datetime.datetime.fromtimestamp(getmtime(mate_invest.QUOTES_FILE))
self.update_tooltip()
except Exception, msg:
mate_invest.error("Could not load the cached quotes file %s: %s" % (mate_invest.QUOTES_FILE, msg) )
# stores the csv content on disk so it can be used on next start up
def save_quotes(self, data):
mate_invest.debug("Storing quotes")
try:
f = open(mate_invest.QUOTES_FILE, 'w')
f.write(data)
f.close()
except Exception, msg:
mate_invest.error("Could not save the retrieved quotes file to %s: %s" % (mate_invest.QUOTES_FILE, msg) )
def set_update_interval(self, interval):
if self.timeout_id != None:
mate_invest.debug("Canceling refresh timer")
GObject.source_remove(self.timeout_id)
self.timeout_id = None
if interval > 0:
mate_invest.debug("Setting refresh timer to %s:%02d.%03d" % ( interval / 60000, interval % 60000 / 1000, interval % 1000) )
self.timeout_id = GObject.timeout_add(interval, self.refresh)
def nm_state_changed(self):
# when nm is online but we do not have an update timer, create it and refresh
if mate_invest.nm.online():
if self.timeout_id == None:
self.set_update_interval(AUTOREFRESH_TIMEOUT)
self.refresh()
def refresh(self):
mate_invest.debug("Refreshing")
# when nm tells me I am offline, stop the update interval
if mate_invest.nm.offline():
mate_invest.debug("We are offline, stopping update timer")
self.set_update_interval(0)
return False
if len(mate_invest.STOCKS) == 0:
mate_invest.debug("No stocks configured")
return True
tickers = '+'.join(mate_invest.STOCKS.keys())
mate_invest.debug("creating QuotesRetriever")
quotes_retriever = QuotesRetriever(tickers)
quotes_retriever.connect("completed", self.on_retriever_completed)
mate_invest.debug("starting QuotesRetriever")
quotes_retriever.start()
mate_invest.debug("started QuotesRetriever")
return True
# locale-aware formatting of the percent float (decimal point, thousand grouping point) with 2 decimal digits
def format_percent(self, value):
return locale.format("%+.2f", value, True) + "%"
# locale-aware formatting of the float value (decimal point, thousand grouping point) with sign and 2 decimal digits
def format_difference(self, value):
return locale.format("%+.2f", value, True, True)
def on_retriever_completed(self, retriever):
if retriever.retrieved == False:
mate_invest.debug("QuotesRetriever failed");
self.update_tooltip(_('Invest could not connect to Yahoo! Finance'))
else:
mate_invest.debug("QuotesRetriever completed");
# cache the retrieved csv file
self.save_quotes(retriever.data)
# load the cache and parse it
self.load_quotes()
def on_currency_retriever_completed(self, retriever):
if retriever.retrieved == False:
mate_invest.error("Failed to retrieve currency rates!")
else:
mate_invest.debug("CurrencyRetriever completed")
self.save_currencies(retriever.data)
self.load_currencies()
self.update_tooltip()
def save_currencies(self, data):
mate_invest.debug("Storing currencies to %s" % mate_invest.CURRENCIES_FILE)
try:
f = open(mate_invest.CURRENCIES_FILE, 'w')
f.write(data)
f.close()
except Exception as msg:
mate_invest.error("Could not save the retrieved currencies to %s: %s" % (mate_invest.CURRENCIES_FILE, msg) )
def load_currencies(self):
mate_invest.debug("Loading currencies from %s" % mate_invest.CURRENCIES_FILE)
try:
f = open(mate_invest.CURRENCIES_FILE, 'r')
data = f.readlines()
f.close()
self.convert_currencies(self.parse_yahoo_csv(csv.reader(data)))
except Exception as msg:
mate_invest.error("Could not load the currencies from %s: %s" % (mate_invest.CURRENCIES_FILE, msg) )
def update_tooltip(self, msg = None):
tooltip = []
if self.quotes_count > 0:
# Translators: This is share-market jargon. It is the average percentage change of all stock prices. The %s gets replaced with the string value of the change (localized), including the percent sign.
tooltip.append(_('Average change: %s') % self.format_percent(self.avg_quotes_change))
for currency, stats in self.statistics.items():
# get the statsitics
balance = stats["balance"]
paid = stats["paid"]
change = self.format_percent(balance / paid * 100)
balance = self.format_difference(balance)
# Translators: This is share-market jargon. It refers to the total difference between the current price and purchase price for all the shares put together for a particular currency. i.e. How much money would be earned if they were sold right now. The first string is the change value, the second the currency, and the third value is the percentage of the change, formatted using user's locale.
tooltip.append(_('Positions balance: %s %s (%s)') % (balance, currency, change))
if self.last_updated != None:
tooltip.append(_('Updated at %s') % self.last_updated.strftime("%H:%M"))
if msg != None:
tooltip.append(msg)
self.set_tooltip_callback('\n'.join(tooltip))
def parse_yahoo_csv(self, csvreader):
result = {}
for fields in csvreader:
if len(fields) == 0:
continue
result[fields[0]] = {}
for i, field in enumerate(QUOTES_CSV_FIELDS):
if type(field) == tuple:
try:
result[fields[0]][field[0]] = field[1](fields[i])
except:
result[fields[0]][field[0]] = 0
else:
result[fields[0]][field] = fields[i]
# calculated fields
try:
result[fields[0]]['variation_pct'] = result[fields[0]]['variation'] / float(result[fields[0]]['trade'] - result[fields[0]]['variation']) * 100
except ZeroDivisionError:
result[fields[0]]['variation_pct'] = 0
return result
# Computes the balance of the given purchases using a certain current value
# and optionally a current exchange rate.
def balance(self, purchases, value, currentrate=None):
current = 0
paid = 0
for purchase in purchases:
if purchase["amount"] != 0:
buyrate = purchase["exchange"]
# if the buy rate is invalid, use 1.0
if buyrate <= 0:
buyrate = 1.0
# if no current rate is given, ignore buy rate
if currentrate == None:
buyrate = 1.0
rate = 1.0
else:
# otherwise, take use buy rate and current rate to compute the balance
rate = currentrate
# current value is the current rate * amount * value
current += rate * purchase["amount"] * value
# paid is buy rate * ( amount * price + commission )
paid += buyrate * (purchase["amount"] * purchase["bought"] + purchase["comission"])
balance = current - paid
if paid != 0:
change = 100*balance/paid
else:
change = 100 # Not technically correct, but it will look more intuitive than the real result of infinity.
return (balance, change)
def populate(self, quotes):
if (len(quotes) == 0):
return
self.clear()
self.currencies = []
try:
quote_items = quotes.items ()
quote_items.sort ()
quotes_change = 0
self.quotes_count = 0
self.statistics = {}
for ticker, val in quote_items:
pb = None
# ignore unknown stocks
if ticker not in mate_invest.STOCKS.keys():
mate_invest.debug("Observed unknown stock: %s" % ticker)
continue
# get the label of this stock for later reuse
label = mate_invest.STOCKS[ticker]["label"]
if len(label) == 0:
if len(val["label"]) != 0:
label = val["label"]
else:
label = ticker
# make sure the currency field is upper case
val["currency"] = val["currency"].upper();
# the currency of currency conversion rates like EURUSD=X is wrong in csv
# this can be fixed easily by reusing the latter currency in the symbol
if len(ticker) == 8 and ticker.endswith("=X"):
val["currency"] = ticker[3:6]
# indices should not have a currency, though yahoo says so
if ticker.startswith("^"):
val["currency"] = ""
# sometimes, funny currencies are returned (special characters), only consider known currencies
if len(val["currency"]) > 0 and val["currency"] not in currencies.Currencies.currencies:
mate_invest.debug("Currency '%s' is not known, dropping" % val["currency"])
val["currency"] = ""
# if this is a currency not yet seen and different from the target currency, memorize it
if val["currency"] not in self.currencies and len(val["currency"]) > 0:
self.currencies.append(val["currency"])
# Check whether the symbol is a simple quote, or a portfolio value
is_simple_quote = True
for purchase in mate_invest.STOCKS[ticker]["purchases"]:
if purchase["amount"] != 0:
is_simple_quote = False
break
if is_simple_quote:
row = self.insert(0, [ticker, label, val["currency"], True, 0.0, 0.0, val["trade"], val["variation_pct"], pb])
else:
(balance, change) = self.balance(mate_invest.STOCKS[ticker]["purchases"], val["trade"])
row = self.insert(0, [ticker, label, val["currency"], False, float(balance), float(change), val["trade"], val["variation_pct"], pb])
self.add_balance_change(balance, change, val["currency"])
if len(ticker.split('.')) == 2:
url = 'http://chart.finance.yahoo.com/h?s=%s' % ticker
else:
url = 'http://ichart.yahoo.com/h?s=%s' % ticker
image_retriever = mate_invest.chart.ImageRetriever(url)
image_retriever.connect("completed", self.set_pb_callback, row)
image_retriever.start()
quotes_change += val['variation_pct']
self.quotes_count += 1
# we can only compute an avg quote if there are quotes
if self.quotes_count > 0:
self.avg_quotes_change = quotes_change / float(self.quotes_count)
# change icon
quotes_change_sign = 0
if self.avg_quotes_change != 0:
quotes_change_sign = self.avg_quotes_change / abs(self.avg_quotes_change)
self.change_icon_callback(quotes_change_sign)
else:
self.avg_quotes_change = 0
# mark quotes to finally be valid
self.quotes_valid = True
except Exception, msg:
mate_invest.debug("Failed to populate quotes: %s" % msg)
mate_invest.debug(quotes)
self.quotes_valid = False
# start retrieving currency conversion rates
if mate_invest.CONFIG.has_key("currency"):
target_currency = mate_invest.CONFIG["currency"]
symbols = []
mate_invest.debug("These currencies occur: %s" % self.currencies)
for currency in self.currencies:
if currency == target_currency:
continue
mate_invest.debug("%s will be converted to %s" % ( currency, target_currency ))
symbol = currency + target_currency + "=X"
symbols.append(symbol)
if len(symbols) > 0:
tickers = '+'.join(symbols)
quotes_retriever = QuotesRetriever(tickers)
quotes_retriever.connect("completed", self.on_currency_retriever_completed)
quotes_retriever.start()
def convert_currencies(self, quotes):
# if there is no target currency, this method should never have been called
if not mate_invest.CONFIG.has_key("currency"):
return
# reset the overall balance
self.statistics = {}
# collect the rates for the currencies
rates = {}
for symbol, data in quotes.items():
currency = symbol[0:3]
rate = data["trade"]
rates[currency] = rate
# convert all non target currencies
target_currency = mate_invest.CONFIG["currency"]
iter = self.get_iter_first()
while iter != None:
currency = self.get_value(iter, self.CURRENCY)
symbol = self.get_value(iter, self.SYMBOL)
# ignore stocks that are currency conversions
# and only convert stocks that are not in the target currency
# and if we have a conversion rate
if not ( len(symbol) == 8 and symbol[6:8] == "=X" ) and \
currency != target_currency and rates.has_key(currency):
# first convert the balance, it needs the original value
if not self.get_value(iter, self.TICKER_ONLY):
ticker = self.get_value(iter, self.SYMBOL)
value = self.get_value(iter, self.VALUE)
(balance, change) = self.balance(mate_invest.STOCKS[ticker]["purchases"], value, rates[currency])
self.set_value(iter, self.BALANCE, balance)
self.set_value(iter, self.BALANCE_PCT, change)
self.add_balance_change(balance, change, target_currency)
# now, convert the value
value = self.get_value(iter, self.VALUE)
value *= rates[currency]
self.set_value(iter, self.VALUE, value)
self.set_value(iter, self.CURRENCY, target_currency)
else:
# consider non-converted stocks here
balance = self.get_value(iter, self.BALANCE)
change = self.get_value(iter, self.BALANCE_PCT)
self.add_balance_change(balance, change, currency)
iter = self.iter_next(iter)
def add_balance_change(self, balance, change, currency):
if balance == 0 and change == 0:
return
if self.statistics.has_key(currency):
self.statistics[currency]["balance"] += balance
self.statistics[currency]["paid"] += balance/change*100
else:
self.statistics[currency] = { "balance" : balance, "paid" : balance/change*100 }
def set_pb_callback(self, retriever, row):
self.set_value(row, self.PB, retriever.image.get_pixbuf())
# check if we have only simple quotes
def simple_quotes_only(self):
res = True
for entry, data in mate_invest.STOCKS.iteritems():
purchases = data["purchases"]
for purchase in purchases:
if purchase["amount"] != 0:
res = False
break
return res
#if Gtk.pygtk_version < (2,8,0):
# GObject.type_register(QuoteUpdater)
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