Commit Graph

148 Commits (3ef191b5d84ba25d90e2080d5b00fe0af05200bd)

Author SHA1 Message Date
Ben Busby 3a2e0b262e
Validate urls in `element` and `window` endpoints
Domains were previously not validated before being handled, leading to a
potential scenario where someone could pass something like
"element_url=127.0.0.1:<port>/<resource>" to access other resources on a
machine running Whoogle. This change ensures that the resource used in
both endpoints is a valid domain.

This also includes validation of config names to prevent names from
including path values such as "../../(etc)".
2023-09-13 15:50:04 -06:00
Ben Busby 4962659acb
Serve basic robots.txt to avoid indexing
Closes #1015
2023-06-26 16:16:45 -06:00
Ben Busby 8c426ab180
Suppress invalid warning from bs4, add 404 handler
An invalid parsing warning was being thrown by the latest version of the
bs4 library. This suppresses that warning from being shown in the
console.

A 404 handler was added to move logging from the console to the error
template, since a lot of users assumed that 404 errors from the result
page were problems with Whoogle itself.

Fixes #967
2023-03-07 11:28:55 -07:00
Ben Busby f7c4381ba6
Remove `preferences` arg from opensearch template
When a browser adds a search engine using the opensearch template, it
does not have the correct context necessary to autofill the
`preferences` arg with the user's session prefs. As a result, queries
made using the browser bar will have the instance's default preferences
filled into the template.

Removing this shouldn't have any side effects, since queries made on the
same machine will have the correct session associated with the user.

Fixes #929
2023-03-06 15:33:28 -07:00
João baa8bd0eb4
Add auth to cookie (#964)
When authenticated, the cookie set will allow the user to stay connected even
if the browser is restarted.

Fixes #951
2023-03-01 09:58:59 -07:00
Ben Busby 1759c119a8
Replace Python 3.10 `match` with if/else
Some distributions require manually installing Python 3.10, which makes
it less convenient than just using whatever version of Python3.X the
package manager supports. Since the only 3.10 feature being used was
"match", and it was a very small change, it's been replaced with an
if/else statement to ensure compatibility with older versions of Python
3.
2023-03-01 09:42:30 -07:00
elliot 7ca69e752d
Add calculator widget (#956)
This adds a simple calculator widget, somewhat similar to the one presented
when searching calculator on Google.

Also, it adds somewhat of a template for making the addition of new widgets
easier via the app/utils/widgets.py file. My eventual plan is to use this to
create more widgets that appear in Google, such as a color picker, timer, etc.

---------

Co-authored-by: Ben Busby <contact@benbusby.com>
2023-02-21 09:36:38 -07:00
Ben Busby aa54491ae0
Log rate-limiting errors
Rate limiting is now reported to the console as an error message.

Fixes #914
2023-01-04 10:21:16 -07:00
Ahmad Alkadri 3dda8b25ef
Escape html text in result body (#912)
Moved the cleaner functions to app/utils/escaper.py

Removed unused import 're'

Moved the cleaner functionalities to the "search.py" and "routes.py"

Making sure escaped chars stay escaped during process

Replaced "&lt;" and "&gt;" with "andlt;" and "andgt;", respectively. This way,
when the 'response' object get loaded to bsoup (which happens several times
throughout the process between search.py and routes.py), bsoup will not
unescape them.
2022-12-29 15:19:28 -07:00
fiestasiesta 7041b43db9
Add time constraint to search options (#888)
Introduces the ability to refine searches by time period:
- Past hour
- Past 24 hours
- Past week
- Past month
- Past year

Co-authored-by: Ben Busby <contact@benbusby.com>
2022-12-21 13:24:27 -07:00
Ben Busby 0310f0f542
Use app init enc key by default for all queries
This can be updated later to allow users with cookies enabled to use a
key that is unique to their session (if they want, not mandatory), but
for now it makes more sense to just use a single key for all queries
from all users. This should eliminate a lot of issues that users have
reported where they are unable to decrypt queries or page elements due
to an expired/renewed session key.
2022-12-05 12:14:14 -07:00
João 2a37619028
Replace error query params w/ preferences param (#867) 2022-10-26 10:26:14 -06:00
João 74503d542e
Encode config params in URL (#842)
Adds support for encoding (and optionally encrypting) user config values as
a single string that can be passed to any endpoint with the "preferences" url
param.

Co-authored-by: Ben Busby <contact@benbusby.com>
2022-09-22 14:14:56 -06:00
Ben Busby 32ad39d0e1
Refactor session behavior, remove `Flask-Session` dep
Sessions are no longer validated using the "/session/..." route. This
created a lot of problems due to buggy/unexpected behavior coming from
the Flask-Session dependency, which is (more or less) no longer
maintained.

Sessions are also no longer strictly server-side-only. The majority of
information that was being stored in user sessions was aesthetic only,
aside from the session specific key used to encrypt URLs. This key is
still unique per user, but is not (or shouldn't be) in anyone's threat
model to keep absolutely 100% private from everyone. Especially paranoid
users of Whoogle can easily modify the code to use a randomly generated
encryption key that is reset on session invalidation (and set
invalidation time to a short enough period for their liking).

Ultimately, this should result in much more stable sessions per client.
There shouldn't be decryption issues with element URLs or queries
during result page navigation.
2022-08-29 13:36:40 -06:00
Ben Busby 3f363b0175
Allow temp region selection from result view
This adds a new "temporary" config section of the results view, where a
user can now change the country that their results come from without
changing their default config settings.

Closes #322
2022-08-01 14:32:24 -06:00
Marcell Fülöp ee2d3726af
Use X-Forwarded-Host as url_root when present (#799)
If Whoogle is accessed on a non-standard port _and_ proxied,
this port is lost to the application and `element['src']`s are
incorrectly formed (omitting port).

HTTP x-Forwarded-Host will contain this front port number in
a typical Nginx reverse proxy configuration.
2022-07-05 10:01:47 -06:00
Ben Busby cada4efe1d
Fix missing `os` import in routes 2022-06-27 12:36:45 -06:00
jan Anja 90e160094d
Add more OpenSearch definitions (for images etc.) (#786) 2022-06-27 12:30:41 -06:00
Ben Busby 966644baa0
Broaden session validation exception handling
Due to how instances installed with pip seem to have issues storing
unrelated files in the same directory as sessions, exception handling
during session validation has been expanded to blindly ignore all
exceptions. This portion of the code is more for maintainers of large
public instances with a bunch of users who block cookies anyways, so
having basic app functionality break down as a result shouldn't be the
default.
2022-06-16 15:46:18 -06:00
Ben Busby ddc73a53fe
Flip country config check in template
Country config value should be checked against the valid value when
updating the home page config, not the other way around. This can lead
to a state where a user sets up an invalid country value, but can still
be matched against a correct value that is part of the invalid value
(i.e. "countryUK" is invalid, but would match against the correct value,
"UK")

Also minor refactor of where the session file size validation occurs.
2022-06-16 12:11:23 -06:00
Ben Busby cb5557cc2e
Check file sizes in session dir before validation
For pip installed instances of Whoogle, there seems to be an issue where
files other than sessions are being stored in the same directory as the
sessions. From a brief investigation, this does not seem to be caused by
Whoogle, since Flask-Session objects are the only files stored in that
directory. It could be an issue with the library that is being used for
sessions, however.

Regardless, the app shouldn't crash when trying to validate and remove
invalid sessions, so a file size limit of 4KB was imposed during
validation. Any file found in the session directory that exceeds this
size limit will be ignored.

Fixes #777
Fixes #793
2022-06-16 11:50:13 -06:00
MadcowOG c9ee9dcc8b
Tor password authentication (#746)
Added password authentication for tor control port.

For user configuration of access to tor control port. This file should be
heavily restricted in file system.

Co-authored-by: MadcowOG <madcowog@Arch-Main.localdomain>
2022-06-16 11:05:41 -06:00
Ben Busby f22e5ac171
Catch and ignore unpickling errors in pip installs
This seems to be caused by an odd behavior related to Flask sessions and
instances of Whoogle installed via pip. I didn't investigate it too
much, since catching and ignoring the result doesn't impact Whoogle
functionality at all (configuration and session values persist as
normal). Since this doesn't affect non-pip instances, I don't believe it
to be a fault within Whoogle itself.

Fixes #765
2022-06-03 14:29:57 -06:00
invis-z 0f6226ce51
Use `window` from Endpoint enum for anon view (#748)
Removes previously hardcoded "/window" from anon view links
2022-05-10 16:06:57 -06:00
Ben Busby 2490089645
Remove unused `/url` endpoint
The `/url` endpoint was previously used as a way of mirroring the
`/url?q=<result domain>` formatting of locations in search results from
Google. Rather than have this unnecessary intermediary step, the result
path was extracted and used as the immediate path for each result item
instead.

This endpoint hasn't been in use for many versions and has been in need
of removal for quite some time.
2022-04-26 16:28:04 -06:00
Ben Busby 5c8be4428b
Fall back to netloc for bang search if query is empty
Previously, empty bang searches would redirect to the Whoogle instance
home page. This now redirects to the specific site for the bang search
instead (i.e. "!yt" without a query redirects to "youtube.com", "!gh" to
"github.com", etc)

Fixes #719
2022-04-20 14:50:32 -06:00
Ben Busby 7688c1a233
Revert anon-view key change from #724
The "anon-view" translation key is the correct one to use for accessing
anonymous view within the search results. "config-anon-view" is only for
the configuration menu on the home page.
2022-04-20 14:11:29 -06:00
gdm85 6d362ca5c7
Add support for relative search results (#715)
* Relativization of search results

* Fix JavaScript error when opening images

* Replace single-letter logo and remove sign-in link

* Add `WHOOGLE_URL_PREFIX` env var to support relative path redirection

The `WHOOGLE_URL_PREFIX` var can now be set to fix internal app
redirects, such as the `/session` redirect performed on the first visit
to the Whoogle home page.

Co-authored-by: Ben Busby <contact@benbusby.com>
2022-04-18 15:27:45 -06:00
gdm85 94b4eb08a2
Return 401 when token is invalid (#714)
In some rare instances (a race condition perhaps?) a
`cryptography.fernet.InvalidToken` exception is thrown resulting in
a broken connection.

This change gracefully returns a 401 error instead.
2022-04-18 13:06:44 -06:00
Ben Busby 9317d9217f
Support proxying results through Whoogle (aka "anonymous view") (#682)
* Expand `/window` endpoint to behave like a proxy

The `/window` endpoint was previously used as a type of proxy, but only
for removing Javascript from the result page. This expands the existing
functionality to allow users to proxy search result pages (with or without
Javascript) through their Whoogle instance.

* Implement filtering of remote content from css

* Condense NoJS feature into Anonymous View

Enabling NoJS now removes Javascript from the Anonymous View, rather
than creating a separate option.

* Exclude 'data:' urls from filter, add translations

The 'data:' url must be allowed in results to view certain elements on
the page, such as stars for review based results.

Add translations for the remaining languages.

* Add cssutils to requirements
2022-04-13 11:29:07 -06:00
gdm85 739a5092cc
Do not offer opensearch.xml as attachment (#713)
Sending opensearch.xml as an attachment is unnecessary. 

This will also allow inspecting the XML file via browser without downloading
it.
2022-04-07 13:52:17 -06:00
Ben Busby 0e5630f33a
Add ability to listen on unix sockets
Introduces a way to tell the app to listen on unix socket instead of
host:port.

Fixes #436
2022-04-06 14:11:52 -06:00
Ben Busby 809520ec70
Fallback to home page for empty bang searches
Bang searches without an actual query (i.e. just searching "!gh") will
now redirect to the home page. I guess people do this for some reason
and don't like that it redirects to the correct bang result URL, but
without an actual search term.

Fixes #595
2022-03-01 12:06:59 -07:00
Ben Busby 23402e27e1
Check for updates using 24 hour time delta
Rather than only checking for an available update on app init, the check
for updates now performs the check once every 24 hours on the first
request sent after that period.

This also now catches the requests.exceptions.ConnectionError that is
thrown if the app is initialized without an active internet connection.

Fixes #649
2022-02-14 12:19:02 -07:00
Joao A. Candido Ramos 11099f7b1d
Use consistent header for all result types (#535)
Introduces a header for switching between result types (i.e. "All", "News",
etc) that is consistent between the different result types. Previously, image
results had a tab header that was formatted in a drastically different manner,
which was jarring when switching from a different result page to the Images
page.

Created a G class enum to reference class names returned in search
results. As noted in the class doc, this should only be used/updated as
a last resort, as class names change frequently. For some instances,
such as replacing the tbm tab, it's a lot easier to just replace by
header name than attempting to replace it based on how the element is
structured.

Also updated a few styles to revert the latest styling changes being
applied by Google.

Co-authored-by: jacr13 <ramos.joao@protonmail.com>
Co-authored-by: Ben Busby <contact@benbusby.com>
2022-02-07 10:47:25 -07:00
Ben Busby 863cbb2b8d
Remove trailing whitespace 2022-01-25 12:31:19 -07:00
Ben Busby 72e5a227c8
Move bangs init to bg thread
Initializing the DDG bangs when running whoogle for the first time
creates an indeterminate amount of delay before the app becomes usable,
which makes usability tests (particularly w/ Docker) unreliable. This
moves the bang json init to a background thread and writes a temporary
empty dict to the bangs json file until the full bangs json can be used.
2022-01-25 12:28:06 -07:00
DUO Labs 257e3f33ef
Skip loading autocomplete.js if `WHOOGLE_AUTOCOMPLETE=0` (#611)
Bypasses autocomplete.js if `WHOOGLE_AUTOCOMPLETE` is set to 0
2022-01-18 13:39:56 -07:00
Ben Busby ded787547a
Exclude opensearch route from session validation
Fixes #588
2022-01-11 10:50:35 -07:00
Ben Busby 6d9df65d02
Catch `FileNotFound` when clearing invalid sessions
The server now consumes the FNF error if an invalid session is found but
is deleted in an earlier thread.

Fixes #577
2021-12-21 14:03:24 -07:00
Ben Busby 634d179568
Use farside.link for frontend alternatives in results (#560)
* Integrate Farside into Whoogle

When instances are ratelimited (when a captcha is returned instead of
the user's search results) the user can now hop to a new instance via
Farside, a new backend service that redirects users to working instances
of a particular frontend. In this case, it presents a user with a
Farside link to a new Whoogle (or Searx) instance instead, so that the
user can resume their search.

For the generated Farside->Whoogle link, the generated link includes the
user's current Whoogle configuration settings as URL params, to ensure a
more seamless transition between instances. This doesn't translate to
the Farside->Searx link, but potentially could with some changes.

* Expand conversion of config<->url params

Config settings can now be translated to and from URL params using a
predetermined set of "safe" keys (i.e. config settings that easily
translate to URL params).

* Allow jumping instances via Farside when ratelimited

When instances are ratelimited (when a captcha is returned instead of
the user's search results) the user can now hop to a new instance via
Farside, a new backend service that redirects users to working instances
of a particular frontend. In this case, it presents a user with a
Farside link to a new Whoogle (or Searx) instance instead, so that the
user can resume their search.

For the generated Farside->Whoogle link, the generated link includes the
user's current Whoogle configuration settings as URL params, to ensure a
more seamless transition between instances. This doesn't translate to
the Farside->Searx link, but potentially could with some changes.

Closes #554

Closes #559
2021-12-08 17:27:33 -07:00
Vansh Comar 7bea6349a0
Add tools for currency conversion in search results (#536)
This implements a method for converting between various currencies. When a user
searches "<currency A> to <currency B>" (including when prefixed by a specific
amount), they are now presented with a table for quickly converting between the
two. This makes use of the currency ratio returned as the first "card" in
currency related searches, and the table is inserted into this same card.
2021-12-06 22:56:13 -07:00
Ben Busby b75ff0782d
pep8: fix CSP header line length 2021-11-29 15:58:19 -07:00
Ben Busby 3e20788857
Disable in-app CSP unless enabled via WHOOGLE_CSP
The default CSP is only helpful for some, and can break instances for
others. Since these aren't always necessary and are occasionally set by
the user's preferred reverse proxy, it is being disabled unless
explicitly enabled by setting `WHOOGLE_CSP`.

Fixes #493
2021-11-29 15:52:28 -07:00
Ben Busby 9c96f0fd57
Improve default response headers
Reponse headers now include the following:
- X-Content-Type-Options: nosniff
- X-Frame-Options: DENY
- Strict-Transport-Security: max-age=63072000
  - Only when HTTPS_ONLY is set

https://infosec.mozilla.org/guidelines/web_security#http-strict-transport-security
https://infosec.mozilla.org/guidelines/web_security#x-content-type-options
https://infosec.mozilla.org/guidelines/web_security#x-frame-options
2021-11-26 08:38:26 -07:00
Ben Busby 5a27d748d1
Create separate test workflow for docker
This expands on the current testing suite a bit by introducing a new
workflow for testing functionality within the docker container. It runs
the same test suite as the regular "test" workflow, but also performs a
health check after running the app for 10 seconds to ensure
functionality.

The buildx workflow now waits for the docker test script to finish
successfully, rather than the regular test workflow. This will hopefully
avoid situations where new images are pushed with issues that aren't
detected in regular testing of the app.
2021-11-22 00:26:25 -07:00
Ben Busby 6f5f3d8ca7
Fix incorrect redirect protocol used by Flask
Flask's `request.url` uses `http` as the protocol, which breaks
instances that enforce `https`, since the session redirect relies on
`request.url` for the follow-through URL.

This introduces a new method for determining the correct URL to use for
these redirects by automatically replacing the protocol with `https` if
the `HTTPS_ONLY` env var is set for that instance.

Fixes #538

Fixes #545
2021-11-21 23:21:04 -07:00
Ben Busby 0c5578937e
Remove 308 redirect for http->https
HTTPS upgrades should be handled outside of Whoogle, since Flask often
doesn't detect the right protocol when being used behind a reverse proxy
such as Nginx.
2021-11-20 16:43:57 -07:00
Ben Busby de28e06d8f
Improve cookie security when `HTTPS_ONLY` is set
Adds the "Secure" flag and "__Secure-" prefix if the `HTTPS_ONLY`
environment variable is enabled.

Fixes #539
2021-11-20 16:34:37 -07:00
Ben Busby e06ff85579
Improve public instance session management (#480)
This introduces a new approach to handling user sessions, which should
allow for users to set more reliable config settings on public instances.

Previously, when a user with cookies disabled would update their config,
this would modify the app's default config file, which would in turn
cause new users to inherit these settings when visiting the app for the
first time and cause users to inherit these settings when their current
session cookie expired (which was after 30 days by default I believe).
There was also some half-baked logic for determining on the backend
whether or not a user had cookies disabled, which lead to some issues
with out of control session file creation by Flask.

Now, when a user visits the site, their initial request is forwarded to
a session/<session id> endpoint, and during that subsequent request
their current session id is matched against the one found in the url. If
the ids match, the user has cookies enabled. If not, their original
request is modified with a 'cookies_disabled' query param that tells
Flask not to bother trying to set up a new session for that user, and
instead just use the app's fallback Fernet key for encryption and the
default config.

Since attempting to create a session for a user with cookies disabled
creates a new session file, there is now also a clean-up routine included
in the new session decorator, which will remove all sessions that don't
include a valid key in the dict. NOTE!!! This means that current user
sessions on public instances will be cleared once this update is merged
in. In the long run that's a good thing though, since this will allow session
mgmt to be a lot more reliable overall for users regardless of their cookie
preference.

Individual user sessions still use a unique Fernet key for encrypting queries,
but users with cookies disabled will use the default app key for encryption
and decryption.

Sessions are also now (semi)permanent and have a lifetime of 1 year.
2021-11-17 19:35:30 -07:00