df6057bc9f
This adds an additional layer of defense. Potential attack: - "English" gets added as a language on the crowdin project - (this can only be done by a moderator or the crowdin devs) - malicious strings get added on crowdin as English translations - we don't notice and pull the updates into the locale git submodule - users with the "default" lang option selected who have their OS lang set to English - and users with "English" explicitly selected in Electrum - would see the malicious strings
124 lines
4.4 KiB
Python
124 lines
4.4 KiB
Python
#!/usr/bin/env python
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#
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# Electrum - lightweight Bitcoin client
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# Copyright (C) 2012 thomasv@gitorious
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#
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# Permission is hereby granted, free of charge, to any person
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# obtaining a copy of this software and associated documentation files
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# (the "Software"), to deal in the Software without restriction,
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# including without limitation the rights to use, copy, modify, merge,
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# publish, distribute, sublicense, and/or sell copies of the Software,
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# and to permit persons to whom the Software is furnished to do so,
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# subject to the following conditions:
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#
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# The above copyright notice and this permission notice shall be
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# included in all copies or substantial portions of the Software.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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# BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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# ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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# SOFTWARE.
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import os
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from typing import Optional
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import gettext
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from .logging import get_logger
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_logger = get_logger(__name__)
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LOCALE_DIR = os.path.join(os.path.dirname(__file__), 'locale', 'locale')
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def _get_null_translations():
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"""Returns a gettext Translations obj with translations explicitly disabled."""
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return gettext.translation('electrum', fallback=True, class_=gettext.NullTranslations)
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# Set initial default language to None. i.e. translations explicitly disabled.
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# The main script or GUIs can call set_language to enable translations.
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_language = _get_null_translations()
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# note: do not use old-style (%) formatting inside translations,
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# as syntactically incorrectly translated strings would raise exceptions (see #3237).
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# e.g. consider _("Connected to %d nodes.") % n
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# >>> "Connecté aux noeuds" % n
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# TypeError: not all arguments converted during string formatting
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# note: f-strings cannot be translated! see https://stackoverflow.com/q/49797658
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# So this does not work: _(f"My name: {name}")
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# instead use .format: _("My name: {}").format(name)
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def _(msg: str, *, context=None) -> str:
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if msg == "":
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return "" # empty string must not be translated. see #7158
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if context:
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contexts = [context]
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if context[-1] != "|": # try with both "|" suffix and without
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contexts.append(context + "|")
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else:
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contexts.append(context[:-1])
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for ctx in contexts:
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out = _language.pgettext(ctx, msg)
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if out != msg: # found non-trivial translation
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return out
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# else try without context
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return _language.gettext(msg)
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def set_language(x: Optional[str]) -> None:
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_logger.info(f"setting language to {x!r}")
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global _language
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if not x:
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return
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if x.startswith("en_"):
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# Setting the language to "English" is a protected special-case:
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# we disable all translations and use the source strings.
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_language = _get_null_translations()
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else:
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_language = gettext.translation('electrum', LOCALE_DIR, fallback=True, languages=[x])
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languages = {
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'': _('Default'),
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'ar_SA': _('Arabic'),
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'bg_BG': _('Bulgarian'),
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'cs_CZ': _('Czech'),
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'da_DK': _('Danish'),
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'de_DE': _('German'),
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'el_GR': _('Greek'),
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'eo_UY': _('Esperanto'),
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'en_UK': _('English'), # selecting this guarantees seeing the untranslated source strings
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'es_ES': _('Spanish'),
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'fa_IR': _('Persian'),
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'fr_FR': _('French'),
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'hu_HU': _('Hungarian'),
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'hy_AM': _('Armenian'),
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'id_ID': _('Indonesian'),
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'it_IT': _('Italian'),
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'ja_JP': _('Japanese'),
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'ky_KG': _('Kyrgyz'),
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'lv_LV': _('Latvian'),
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'nb_NO': _('Norwegian Bokmal'),
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'nl_NL': _('Dutch'),
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'pl_PL': _('Polish'),
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'pt_BR': _('Portuguese (Brazil)'),
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'pt_PT': _('Portuguese'),
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'ro_RO': _('Romanian'),
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'ru_RU': _('Russian'),
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'sk_SK': _('Slovak'),
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'sl_SI': _('Slovenian'),
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'sv_SE': _('Swedish'),
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'ta_IN': _('Tamil'),
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'th_TH': _('Thai'),
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'tr_TR': _('Turkish'),
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'uk_UA': _('Ukrainian'),
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'vi_VN': _('Vietnamese'),
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'zh_CN': _('Chinese Simplified'),
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'zh_TW': _('Chinese Traditional')
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}
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assert '' in languages
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