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add encryption only when option is set

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This commit is contained in:
Joao Ramos 2022-09-21 13:24:07 +02:00
parent 2b7935618c
commit 5e75fd7ea8
3 changed files with 35 additions and 21 deletions
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37
app/models/config.py
View File

@ -35,7 +35,9 @@ class Config:
self.view_image = read_config_bool('WHOOGLE_CONFIG_VIEW_IMAGE') self.view_image = read_config_bool('WHOOGLE_CONFIG_VIEW_IMAGE')
self.get_only = read_config_bool('WHOOGLE_CONFIG_GET_ONLY') self.get_only = read_config_bool('WHOOGLE_CONFIG_GET_ONLY')
self.anon_view = read_config_bool('WHOOGLE_CONFIG_ANON_VIEW') self.anon_view = read_config_bool('WHOOGLE_CONFIG_ANON_VIEW')
self.preferences_encrypted = read_config_bool('WHOOGLE_CONFIG_PREFERENCES_ENCRYPTED')
self.preferences_key = os.getenv('WHOOGLE_CONFIG_PREFERENCES_KEY', '') self.preferences_key = os.getenv('WHOOGLE_CONFIG_PREFERENCES_KEY', '')
self.accept_language = False self.accept_language = False
self.safe_keys = [ self.safe_keys = [
@ -85,7 +87,9 @@ class Config:
@property @property
def preferences(self) -> str: def preferences(self) -> str:
return self._encode_preferences() encrypted_flag = "e" if self.preferences_encrypted else 'u'
preferences_digest = self._encode_preferences()
return f"{encrypted_flag}{preferences_digest}"
def is_safe_key(self, key) -> bool: def is_safe_key(self, key) -> bool:
"""Establishes a group of config options that are safe to set """Establishes a group of config options that are safe to set
@ -166,25 +170,32 @@ class Config:
return key return key
def _encode_preferences(self) -> str: def _encode_preferences(self) -> str:
if self.preferences_key == '':
return ''
encoded_preferences = brotli.compress(pickle.dumps(self.get_attrs())) encoded_preferences = brotli.compress(pickle.dumps(self.get_attrs()))
key = self._get_fernet_key(self.preferences_key) if self.preferences_encrypted:
encrypted_preferences = Fernet(key).encrypt(encoded_preferences) if self.preferences_key != '':
key = self._get_fernet_key(self.preferences_key)
encoded_preferences = Fernet(key).encrypt(encoded_preferences)
return urlsafe_b64encode( return urlsafe_b64encode(
brotli.compress(encrypted_preferences) brotli.compress(encoded_preferences)
).decode() ).decode()
def _decode_preferences(self, preferences: str) -> dict: def _decode_preferences(self, preferences: str) -> dict:
try: if preferences.startswith('e'): # preferences are encrypted
key = self._get_fernet_key(self.preferences_key) try:
key = self._get_fernet_key(self.preferences_key)
config = Fernet(key).decrypt( config = Fernet(key).decrypt(
brotli.decompress(urlsafe_b64decode(preferences.encode()))
)
config = pickle.loads(brotli.decompress(config))
except Exception:
config = {}
elif preferences.startswith('u'): # preferences are not encrypted
config = pickle.loads(
brotli.decompress(urlsafe_b64decode(preferences.encode())) brotli.decompress(urlsafe_b64decode(preferences.encode()))
) )
else: # preferences are incorrectly formatted
config = pickle.loads(brotli.decompress(config))
except Exception:
config = {} config = {}
return config return config

4
app/static/settings/translations.json
View File

@ -26,7 +26,9 @@
"config-tor": "Use Tor", "config-tor": "Use Tor",
"config-get-only": "GET Requests Only", "config-get-only": "GET Requests Only",
"config-url": "Root URL", "config-url": "Root URL",
"config-url-pref": "Preferences URL", "config-pref-url": "Preferences URL",
"config-pref-encryption": "Encrypt Preferences",
"config-pref-help": "You need to set the encryption key in WHOOGLE_CONFIG_PREFERENCES_ENCRYPTED otherwise the encryption will be ignored.",
"config-css": "Custom CSS", "config-css": "Custom CSS",
"load": "Load", "load": "Load",
"apply": "Apply", "apply": "Apply",

15
app/templates/index.html
View File

@ -236,13 +236,14 @@
{{ config.style.replace('\t', '') }} {{ config.style.replace('\t', '') }}
</textarea> </textarea>
</div> </div>
{% if config.preferences %} <div class="config-div config-div-pref-url">
<div class="config-div config-div-pref-url"> <label for="config-pref-encryption">{{ translation['config-pref-encryption'] }}: </label>
<label for="config-pref-url">{{ translation['config-url-pref'] }}: </label> <input type="checkbox" name="preferences_encrypted"
<input type="text" name="pref-url" id="config-pref-url" value="{{ config.url }}?preferences={{ config.preferences }}"> id="config-pref-encryption" {{ 'checked' if config.preferences_encrypted and config.preferences_key else '' }}>
</div> <div><span class="info-text"> — {{ translation['config-pref-help'] }}</span></div>
{% endif %} <label for="config-pref-url">{{ translation['config-pref-url'] }}: </label>
<input type="text" name="pref-url" id="config-pref-url" value="{{ config.url }}?preferences={{ config.preferences }}">
</div>
</div> </div>
<div class="config-div config-buttons"> <div class="config-div config-buttons">
<input type="submit" id="config-load" value="{{ translation['load'] }}">&nbsp; <input type="submit" id="config-load" value="{{ translation['load'] }}">&nbsp;