Sending queries through POST, while better for privacy, breaks functionality
with certain extensions (e.g. Firefox containers). Since Firefox does
not send cookies when requesting `/opensearch.xml`, users cannot easily
switch to GET on the client side unless they make a custom search
engine. This commit allows admins to modify the default method on their
side so they can set it to GET if needed.
Sending query params over GET seems to be the only way to be able to
enable autocomplete in the browser. This commit adds the necessary URL
formatting to opensearch.xml. In order to identify queries coming from
the URL bar (rather than an AJAX request), which requires a different
JSON format and MIME type, the request headers are checked for
"X-Requested-With: XMLHttpRequest" which is added by jQuery request.
## What does this PR do?
When installing searx on a centos-7 image [1] an encoding exception is raised from setup.py::
command: /usr/local/searx/searx-pyenv/bin/python3 -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'/usr/local/searx/searx-src/setup.py'"'"'; __file__='"'"'/usr/local/searx/searx-src/setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'rn'"'"', '"'"'n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' egg_info --egg-base /tmp/pip-pip-egg-info-pidntzkq
cwd: /usr/local/searx/searx-src/
Complete output (7 lines):
Traceback (most recent call last):
File "<string>", line 1, in <module>
File "/usr/local/searx/searx-src/setup.py", line 16, in <module>
long_description = f.read()
File "/usr/lib64/python3.6/encodings/ascii.py", line 26, in decode
return codecs.ascii_decode(input, self.errors)[0]
UnicodeDecodeError: 'ascii' codec can't decode byte 0xc9 in position 482: ordinal not in range(128)
[1] https://uk.images.linuxcontainers.org/
## Why is this change important?
README.rst uses non ASCII characters _(pronunciation səːks.)_
## How to test this PR locally?
install searx on a centos-7 image from https://uk.images.linuxcontainers.org/
## What does this PR do?
To test centos-7 on non centos systems add centos-7 image to the LXC suite.
## Why is this change important?
PR #2112 adds centos-7 support to the install scripts
## How to test this PR locally?
`sudo ./utils/lxc.sh build searx-centos7`
- enabling HTTPS for sci-hub.tw by default
- making sci-hub the default DOI resolver as it has the largest collection of scientific articles.
- replaced doai.io with dissem.in, as it redirects to this new domain.
Co-authored-by: Aurora of Earth <auroraofearth@ya.ru>
