46 |
63 |
64 |
65 |
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/README.md:
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1 | # searx checker
2 |
3 | A small command line tool to check which engines return results of an instance.
4 |
5 | Results can be retrieved by [`searx.space`](https://searx.space) to contribute to the engine [statistics of the public Searx instances](https://github.com/dalf/searx-stats2).
6 |
7 | To make engines work correctly as much as possible, please update the examined `searx` instance to the latest commit.
8 |
9 | `searx-checker` [might be embedded into `searx`](https://github.com/asciimoo/searx/issues/1559) in the future.
10 |
11 | ## Requirements
12 |
13 | * Python >= 3.5
14 |
15 | ## Installation
16 |
17 | ```zsh
18 | git clone git@github.com:searx/searx-checker.git
19 | cd searx-checker
20 | mkdir -p html/data
21 | virtualenv -p python3 venv
22 | source venv/bin/activate
23 | pip3 install -r requirements.txt
24 | ```
25 |
26 | ## Usage
27 |
28 | ```
29 | python3 checker/checker.py -o html/data/status.json
30 | ```
31 |
32 | Example output of an instance with 2 non-responsive engines and 3 working engines.
33 |
34 | ```
35 | python3 checker/checker.py http://localhost:8888
36 | Testing 5 engines of http://localhost:8888
37 | google.OK
38 | bing.OK
39 | gitlab......ERROR No result
40 | vimeo......ERROR unexpected crash: list index out of range
41 | twitter.OK
42 |
43 | Engines of http://localhost:8888 not returning results:
44 | gitlab: No result
45 | vimeo: unexpected crash: list index out of range
46 | You might want to check these manually...
47 | ```
48 |
49 | ## Nginx
50 | On your `nginx` configuration file for searx, you need to serve the file `status.json` generated by `searx-checker` by activating correctly the `/status` route.
51 |
52 | ```nginx
53 | location / {
54 | proxy_set_header X-Real-IP $remote_addr;
55 | proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
56 | proxy_set_header Host $http_host;
57 | proxy_pass http://localhost:4004;
58 | proxy_redirect off;
59 | }
60 |
61 | location /status {
62 | root /srv/http/searx-checker/html;
63 | rewrite ^/status$ /data/status.json break;
64 | }
65 | ```
66 |
67 | ## Caddy
68 | Same for Caddy.
69 |
70 | ```caddy
71 | root /srv/
72 |
73 | ...
74 |
75 | rewrite / {
76 | regexp ^/status$
77 | to /searx-checker/html/data/status.json
78 | }
79 |
80 | proxy / localhost:4004 {
81 | transparent
82 | header_upstream X-Forwarded-TlsProto {tls_protocol}
83 | header_upstream X-Forwarded-TlsCipher {tls_cipher}
84 | header_upstream X-Forwarded-HttpsProto {proto}
85 |
86 | except /searx-checker/html/data/status.json
87 | }
88 | ```
89 |
90 | ## systemd timers
91 |
92 | `systemd` offers a modern built-in cron-like job scheduler with `systemd timers`.
93 |
94 | ```zsh
95 | vim /etc/systemd/system/searx-checker.timer
96 | ```
97 |
98 | ```systemd
99 | [Unit]
100 | Description=Daily update of the engine statistics of your public Searx instance
101 |
102 | [Timer]
103 | OnCalendar=daily
104 | RandomizedDelaySec=1h
105 | Persistent=true
106 |
107 | [Install]
108 | WantedBy=timers.target
109 | ```
110 |
111 | Please replace below *instance_url* by the URL of your Searx instance.
112 |
113 | ```zsh
114 | vim /etc/systemd/system/searx-checker.service
115 | ```
116 |
117 | ```systemd
118 | [Unit]
119 | Description=searx-checker status renewal
120 |
121 | [Service]
122 | Type=oneshot
123 | User=http
124 | WorkingDirectory=/srv/http/searx-checker
125 | ExecStart=/srv/http/searx-checker/venv/bin/python3 checker/checker.py -o html/data/status.json instance_url
126 | ```
127 |
128 | ## Docker
129 |
130 | To use `searx-checker` with Docker, please go to [the `searx-docker` project](https://github.com/searx/searx-docker).
131 |
--------------------------------------------------------------------------------
/checker/checker.py:
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1 | from urllib.parse import urlencode, urlparse
2 | from sys import exit, stdout, stderr
3 | from json import dumps
4 | import collections
5 | import argparse
6 | import requests
7 | import calendar
8 | import datetime
9 |
10 |
11 | EngineResult = collections.namedtuple('EngineResult', ['status', 'error'])
12 |
13 | CONFIG_API_ENDPOINT = '/config'
14 |
15 | QUERY_STRINGS = {
16 | '*': ['time', 'test', 'savant', 'bbc.com' ],
17 | 'currency': [ '10 usd in eur' ],
18 | 'translate' : [ 'en-ru apple' ],
19 | 'map' : [ 'paris' ],
20 | 'calc' : [ '1/x' ]
21 | }
22 |
23 | ENGINE_QUERY = {
24 | 'dictzone': 'translate',
25 | 'mymemory translated': 'translate',
26 | 'currency': 'currency',
27 | 'photon' : 'map',
28 | 'openstreetmap': 'map',
29 | 'wolframalpha': 'calc'
30 | }
31 |
32 |
33 | def _is_url(url):
34 | try:
35 | result = urlparse(url)
36 | return True
37 | except Exception as e:
38 | return False
39 |
40 |
41 | def _is_url_image(image_url):
42 | if image_url.startswith('//'):
43 | image_url='https:' + image_url
44 |
45 | if image_url.startswith('data:'):
46 | return image_url.startswith('data:image/')
47 |
48 | if not _is_url(image_url):
49 | return False
50 |
51 | try:
52 | r = requests.head(image_url, allow_redirects=True)
53 | if r.headers["content-type"].startswith('image/'):
54 | return True
55 | return False
56 | except Exception as e:
57 | # some server doesn't support HEAD
58 | try:
59 | r = requests.get(image_url, allow_redirects=True)
60 | if r.headers["content-type"].startswith('image/'):
61 | return True
62 | return False
63 | except Exception as e2:
64 | return False
65 |
66 |
67 | def _check_result(result):
68 | template=result.get('template', 'default.html')
69 | if template == 'default.html':
70 | return True
71 | if template == 'code.html':
72 | return True
73 | if template == 'torrent.html':
74 | return True
75 | if template == 'map.html':
76 | return True
77 | if template == 'images.html':
78 | return _is_url_image(result.get('thumbnail_src'))
79 | if template == 'videos.html':
80 | return _is_url_image(result.get('thumbnail'))
81 | return True
82 |
83 |
84 | def _check_results(results):
85 | for result in results:
86 | if not _check_result(result):
87 | return EngineResult(False, "Engine returns an unavailable thumbnail URL")
88 | return EngineResult(True, None)
89 |
90 |
91 | def get_config(url):
92 | resp = requests.get(url + CONFIG_API_ENDPOINT)
93 | if resp.status_code != 200:
94 | print('Error get ', CONFIG_API_ENDPOINT, ', status code=',resp.status_code)
95 | exit(2)
96 | return resp.json()
97 |
98 |
99 | def get_engines(config):
100 | if 'engines' in config:
101 | return config['engines']
102 | print('Error while getting the engines', file=stderr)
103 | exit(2)
104 |
105 |
106 | def get_version(config):
107 | if 'version' in config:
108 | return config['version']
109 | return None
110 |
111 |
112 | def _construct_url(instance_url, query_string, shortcut):
113 | query = urlencode({'q': '!{} {}'.format(shortcut, query_string),
114 | 'format': 'json'})
115 | url = '{url}/?{query}'.format(url=instance_url, query=query)
116 | return url
117 |
118 |
119 | def _check_response(resp):
120 | if 'Rate limit exceeded' in resp.text:
121 | print('Exceeded rate limit of instance', file=stderr)
122 | exit(3)
123 |
124 | resp_json = resp.json()
125 |
126 | if 'error' in resp_json and resp_json['error'] == 'search error':
127 | return EngineResult(False, resp_json['error'][0][1])
128 | if 'unresponsive_engines' in resp_json and len(resp_json['unresponsive_engines']) > 0:
129 | return EngineResult(False, resp_json['unresponsive_engines'][0][1])
130 |
131 | if 'results' in resp_json and len(resp_json['results']) != 0:
132 | return _check_results(resp_json['results'])
133 | if 'answers' in resp_json and len(resp_json['answers']) != 0:
134 | return EngineResult(True, None)
135 | if 'infoboxes' in resp_json and len(resp_json['infoboxes']) != 0:
136 | return EngineResult(True, None)
137 |
138 | return EngineResult(False, "No result")
139 |
140 |
141 | def _query_engine_result(instance_url, engine, query_string):
142 | url = _construct_url(instance_url, query_string, engine['shortcut'])
143 | resp = requests.get(url)
144 | print('.', end='')
145 |
146 | return _check_response(resp)
147 |
148 |
149 | def _request_results(instance_url, engine):
150 | print(engine['name'], end='')
151 |
152 | query_strings_key = ENGINE_QUERY.get(engine['name'], '*')
153 | query_strings = QUERY_STRINGS.get(query_strings_key)
154 |
155 | for query in query_strings:
156 | engine_result = _query_engine_result(instance_url, engine, query)
157 | if engine_result.status:
158 | print('OK')
159 | return engine_result
160 |
161 | print('ERROR', engine_result.error)
162 | return engine_result
163 |
164 |
165 | def check_engines_state(instance_url, engines):
166 | engines_state = list()
167 | for engine in sorted(engines, key=lambda engine: engine['name']):
168 | provides_results = _request_results(instance_url, engine)
169 | engines_state.append((engine['name'], provides_results))
170 |
171 | return engines_state
172 |
173 |
174 | def print_intro(instance_url, engines_number, version):
175 | if version is None:
176 | print('Searx version : unknown')
177 | else:
178 | print('Searx version : {}'.format(version))
179 |
180 | if engines_number == 1:
181 | print('Testing {} engine of {}'.format(engines_number, instance_url))
182 | elif engines_number > 1:
183 | print('Testing {} engines of {}'.format(engines_number, instance_url))
184 | print('This might take a while...')
185 |
186 |
187 | def print_report(instance_url, engines_state):
188 | print('\nEngines of {url} not returning results:'.format(url=instance_url))
189 | for engine_name, engine_result in engines_state:
190 | if not engine_result.status:
191 | print('{name}: {error}'.format(name=engine_name, error=engine_result.error))
192 | print('You might want to check these manually...')
193 |
194 |
195 | def write_report(instance_url, version, engines_state, file_name):
196 | output = {
197 | "timestamp": calendar.timegm(datetime.datetime.now().utctimetuple()),
198 | "version": version,
199 | "engines_state": {e[0]: { "status": e[1].status, "error": e[1].error } for e in engines_state }
200 | }
201 |
202 | output_json = dumps(output, sort_keys=True, indent=4, ensure_ascii=False)
203 |
204 | with open(file_name, 'w') as outfile:
205 | outfile.write(output_json)
206 |
207 |
208 | def main(instance_url, file_name):
209 | config = get_config(instance_url)
210 | engines = get_engines(config)
211 | version = get_version(config)
212 |
213 | print_intro(instance_url, len(engines), version)
214 |
215 | state = check_engines_state(instance_url, engines)
216 |
217 | print_report(instance_url, state)
218 |
219 | if file_name is not None:
220 | write_report(instance_url, version, state, file_name)
221 |
222 |
223 | if __name__ == "__main__":
224 | parser = argparse.ArgumentParser(description='Process some integers.')
225 | parser.add_argument('url', metavar='URL', type=str, help='searx URL')
226 | parser.add_argument('-o', type=str, nargs='?', help='JSON file will contains the results')
227 | args = parser.parse_args()
228 | main(args.url, args.o)
229 |
--------------------------------------------------------------------------------
/LICENSE:
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294 | is a consumer product regardless of whether the product has substantial
295 | commercial, industrial or non-consumer uses, unless such uses represent
296 | the only significant mode of use of the product.
297 |
298 | "Installation Information" for a User Product means any methods,
299 | procedures, authorization keys, or other information required to install
300 | and execute modified versions of a covered work in that User Product from
301 | a modified version of its Corresponding Source. The information must
302 | suffice to ensure that the continued functioning of the modified object
303 | code is in no case prevented or interfered with solely because
304 | modification has been made.
305 |
306 | If you convey an object code work under this section in, or with, or
307 | specifically for use in, a User Product, and the conveying occurs as
308 | part of a transaction in which the right of possession and use of the
309 | User Product is transferred to the recipient in perpetuity or for a
310 | fixed term (regardless of how the transaction is characterized), the
311 | Corresponding Source conveyed under this section must be accompanied
312 | by the Installation Information. But this requirement does not apply
313 | if neither you nor any third party retains the ability to install
314 | modified object code on the User Product (for example, the work has
315 | been installed in ROM).
316 |
317 | The requirement to provide Installation Information does not include a
318 | requirement to continue to provide support service, warranty, or updates
319 | for a work that has been modified or installed by the recipient, or for
320 | the User Product in which it has been modified or installed. Access to a
321 | network may be denied when the modification itself materially and
322 | adversely affects the operation of the network or violates the rules and
323 | protocols for communication across the network.
324 |
325 | Corresponding Source conveyed, and Installation Information provided,
326 | in accord with this section must be in a format that is publicly
327 | documented (and with an implementation available to the public in
328 | source code form), and must require no special password or key for
329 | unpacking, reading or copying.
330 |
331 | 7. Additional Terms.
332 |
333 | "Additional permissions" are terms that supplement the terms of this
334 | License by making exceptions from one or more of its conditions.
335 | Additional permissions that are applicable to the entire Program shall
336 | be treated as though they were included in this License, to the extent
337 | that they are valid under applicable law. If additional permissions
338 | apply only to part of the Program, that part may be used separately
339 | under those permissions, but the entire Program remains governed by
340 | this License without regard to the additional permissions.
341 |
342 | When you convey a copy of a covered work, you may at your option
343 | remove any additional permissions from that copy, or from any part of
344 | it. (Additional permissions may be written to require their own
345 | removal in certain cases when you modify the work.) You may place
346 | additional permissions on material, added by you to a covered work,
347 | for which you have or can give appropriate copyright permission.
348 |
349 | Notwithstanding any other provision of this License, for material you
350 | add to a covered work, you may (if authorized by the copyright holders of
351 | that material) supplement the terms of this License with terms:
352 |
353 | a) Disclaiming warranty or limiting liability differently from the
354 | terms of sections 15 and 16 of this License; or
355 |
356 | b) Requiring preservation of specified reasonable legal notices or
357 | author attributions in that material or in the Appropriate Legal
358 | Notices displayed by works containing it; or
359 |
360 | c) Prohibiting misrepresentation of the origin of that material, or
361 | requiring that modified versions of such material be marked in
362 | reasonable ways as different from the original version; or
363 |
364 | d) Limiting the use for publicity purposes of names of licensors or
365 | authors of the material; or
366 |
367 | e) Declining to grant rights under trademark law for use of some
368 | trade names, trademarks, or service marks; or
369 |
370 | f) Requiring indemnification of licensors and authors of that
371 | material by anyone who conveys the material (or modified versions of
372 | it) with contractual assumptions of liability to the recipient, for
373 | any liability that these contractual assumptions directly impose on
374 | those licensors and authors.
375 |
376 | All other non-permissive additional terms are considered "further
377 | restrictions" within the meaning of section 10. If the Program as you
378 | received it, or any part of it, contains a notice stating that it is
379 | governed by this License along with a term that is a further
380 | restriction, you may remove that term. If a license document contains
381 | a further restriction but permits relicensing or conveying under this
382 | License, you may add to a covered work material governed by the terms
383 | of that license document, provided that the further restriction does
384 | not survive such relicensing or conveying.
385 |
386 | If you add terms to a covered work in accord with this section, you
387 | must place, in the relevant source files, a statement of the
388 | additional terms that apply to those files, or a notice indicating
389 | where to find the applicable terms.
390 |
391 | Additional terms, permissive or non-permissive, may be stated in the
392 | form of a separately written license, or stated as exceptions;
393 | the above requirements apply either way.
394 |
395 | 8. Termination.
396 |
397 | You may not propagate or modify a covered work except as expressly
398 | provided under this License. Any attempt otherwise to propagate or
399 | modify it is void, and will automatically terminate your rights under
400 | this License (including any patent licenses granted under the third
401 | paragraph of section 11).
402 |
403 | However, if you cease all violation of this License, then your
404 | license from a particular copyright holder is reinstated (a)
405 | provisionally, unless and until the copyright holder explicitly and
406 | finally terminates your license, and (b) permanently, if the copyright
407 | holder fails to notify you of the violation by some reasonable means
408 | prior to 60 days after the cessation.
409 |
410 | Moreover, your license from a particular copyright holder is
411 | reinstated permanently if the copyright holder notifies you of the
412 | violation by some reasonable means, this is the first time you have
413 | received notice of violation of this License (for any work) from that
414 | copyright holder, and you cure the violation prior to 30 days after
415 | your receipt of the notice.
416 |
417 | Termination of your rights under this section does not terminate the
418 | licenses of parties who have received copies or rights from you under
419 | this License. If your rights have been terminated and not permanently
420 | reinstated, you do not qualify to receive new licenses for the same
421 | material under section 10.
422 |
423 | 9. Acceptance Not Required for Having Copies.
424 |
425 | You are not required to accept this License in order to receive or
426 | run a copy of the Program. Ancillary propagation of a covered work
427 | occurring solely as a consequence of using peer-to-peer transmission
428 | to receive a copy likewise does not require acceptance. However,
429 | nothing other than this License grants you permission to propagate or
430 | modify any covered work. These actions infringe copyright if you do
431 | not accept this License. Therefore, by modifying or propagating a
432 | covered work, you indicate your acceptance of this License to do so.
433 |
434 | 10. Automatic Licensing of Downstream Recipients.
435 |
436 | Each time you convey a covered work, the recipient automatically
437 | receives a license from the original licensors, to run, modify and
438 | propagate that work, subject to this License. You are not responsible
439 | for enforcing compliance by third parties with this License.
440 |
441 | An "entity transaction" is a transaction transferring control of an
442 | organization, or substantially all assets of one, or subdividing an
443 | organization, or merging organizations. If propagation of a covered
444 | work results from an entity transaction, each party to that
445 | transaction who receives a copy of the work also receives whatever
446 | licenses to the work the party's predecessor in interest had or could
447 | give under the previous paragraph, plus a right to possession of the
448 | Corresponding Source of the work from the predecessor in interest, if
449 | the predecessor has it or can get it with reasonable efforts.
450 |
451 | You may not impose any further restrictions on the exercise of the
452 | rights granted or affirmed under this License. For example, you may
453 | not impose a license fee, royalty, or other charge for exercise of
454 | rights granted under this License, and you may not initiate litigation
455 | (including a cross-claim or counterclaim in a lawsuit) alleging that
456 | any patent claim is infringed by making, using, selling, offering for
457 | sale, or importing the Program or any portion of it.
458 |
459 | 11. Patents.
460 |
461 | A "contributor" is a copyright holder who authorizes use under this
462 | License of the Program or a work on which the Program is based. The
463 | work thus licensed is called the contributor's "contributor version".
464 |
465 | A contributor's "essential patent claims" are all patent claims
466 | owned or controlled by the contributor, whether already acquired or
467 | hereafter acquired, that would be infringed by some manner, permitted
468 | by this License, of making, using, or selling its contributor version,
469 | but do not include claims that would be infringed only as a
470 | consequence of further modification of the contributor version. For
471 | purposes of this definition, "control" includes the right to grant
472 | patent sublicenses in a manner consistent with the requirements of
473 | this License.
474 |
475 | Each contributor grants you a non-exclusive, worldwide, royalty-free
476 | patent license under the contributor's essential patent claims, to
477 | make, use, sell, offer for sale, import and otherwise run, modify and
478 | propagate the contents of its contributor version.
479 |
480 | In the following three paragraphs, a "patent license" is any express
481 | agreement or commitment, however denominated, not to enforce a patent
482 | (such as an express permission to practice a patent or covenant not to
483 | sue for patent infringement). To "grant" such a patent license to a
484 | party means to make such an agreement or commitment not to enforce a
485 | patent against the party.
486 |
487 | If you convey a covered work, knowingly relying on a patent license,
488 | and the Corresponding Source of the work is not available for anyone
489 | to copy, free of charge and under the terms of this License, through a
490 | publicly available network server or other readily accessible means,
491 | then you must either (1) cause the Corresponding Source to be so
492 | available, or (2) arrange to deprive yourself of the benefit of the
493 | patent license for this particular work, or (3) arrange, in a manner
494 | consistent with the requirements of this License, to extend the patent
495 | license to downstream recipients. "Knowingly relying" means you have
496 | actual knowledge that, but for the patent license, your conveying the
497 | covered work in a country, or your recipient's use of the covered work
498 | in a country, would infringe one or more identifiable patents in that
499 | country that you have reason to believe are valid.
500 |
501 | If, pursuant to or in connection with a single transaction or
502 | arrangement, you convey, or propagate by procuring conveyance of, a
503 | covered work, and grant a patent license to some of the parties
504 | receiving the covered work authorizing them to use, propagate, modify
505 | or convey a specific copy of the covered work, then the patent license
506 | you grant is automatically extended to all recipients of the covered
507 | work and works based on it.
508 |
509 | A patent license is "discriminatory" if it does not include within
510 | the scope of its coverage, prohibits the exercise of, or is
511 | conditioned on the non-exercise of one or more of the rights that are
512 | specifically granted under this License. You may not convey a covered
513 | work if you are a party to an arrangement with a third party that is
514 | in the business of distributing software, under which you make payment
515 | to the third party based on the extent of your activity of conveying
516 | the work, and under which the third party grants, to any of the
517 | parties who would receive the covered work from you, a discriminatory
518 | patent license (a) in connection with copies of the covered work
519 | conveyed by you (or copies made from those copies), or (b) primarily
520 | for and in connection with specific products or compilations that
521 | contain the covered work, unless you entered into that arrangement,
522 | or that patent license was granted, prior to 28 March 2007.
523 |
524 | Nothing in this License shall be construed as excluding or limiting
525 | any implied license or other defenses to infringement that may
526 | otherwise be available to you under applicable patent law.
527 |
528 | 12. No Surrender of Others' Freedom.
529 |
530 | If conditions are imposed on you (whether by court order, agreement or
531 | otherwise) that contradict the conditions of this License, they do not
532 | excuse you from the conditions of this License. If you cannot convey a
533 | covered work so as to satisfy simultaneously your obligations under this
534 | License and any other pertinent obligations, then as a consequence you may
535 | not convey it at all. For example, if you agree to terms that obligate you
536 | to collect a royalty for further conveying from those to whom you convey
537 | the Program, the only way you could satisfy both those terms and this
538 | License would be to refrain entirely from conveying the Program.
539 |
540 | 13. Remote Network Interaction; Use with the GNU General Public License.
541 |
542 | Notwithstanding any other provision of this License, if you modify the
543 | Program, your modified version must prominently offer all users
544 | interacting with it remotely through a computer network (if your version
545 | supports such interaction) an opportunity to receive the Corresponding
546 | Source of your version by providing access to the Corresponding Source
547 | from a network server at no charge, through some standard or customary
548 | means of facilitating copying of software. This Corresponding Source
549 | shall include the Corresponding Source for any work covered by version 3
550 | of the GNU General Public License that is incorporated pursuant to the
551 | following paragraph.
552 |
553 | Notwithstanding any other provision of this License, you have
554 | permission to link or combine any covered work with a work licensed
555 | under version 3 of the GNU General Public License into a single
556 | combined work, and to convey the resulting work. The terms of this
557 | License will continue to apply to the part which is the covered work,
558 | but the work with which it is combined will remain governed by version
559 | 3 of the GNU General Public License.
560 |
561 | 14. Revised Versions of this License.
562 |
563 | The Free Software Foundation may publish revised and/or new versions of
564 | the GNU Affero General Public License from time to time. Such new versions
565 | will be similar in spirit to the present version, but may differ in detail to
566 | address new problems or concerns.
567 |
568 | Each version is given a distinguishing version number. If the
569 | Program specifies that a certain numbered version of the GNU Affero General
570 | Public License "or any later version" applies to it, you have the
571 | option of following the terms and conditions either of that numbered
572 | version or of any later version published by the Free Software
573 | Foundation. If the Program does not specify a version number of the
574 | GNU Affero General Public License, you may choose any version ever published
575 | by the Free Software Foundation.
576 |
577 | If the Program specifies that a proxy can decide which future
578 | versions of the GNU Affero General Public License can be used, that proxy's
579 | public statement of acceptance of a version permanently authorizes you
580 | to choose that version for the Program.
581 |
582 | Later license versions may give you additional or different
583 | permissions. However, no additional obligations are imposed on any
584 | author or copyright holder as a result of your choosing to follow a
585 | later version.
586 |
587 | 15. Disclaimer of Warranty.
588 |
589 | THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
590 | APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
591 | HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
592 | OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
593 | THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
594 | PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
595 | IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
596 | ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
597 |
598 | 16. Limitation of Liability.
599 |
600 | IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
601 | WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
602 | THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
603 | GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
604 | USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
605 | DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
606 | PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
607 | EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
608 | SUCH DAMAGES.
609 |
610 | 17. Interpretation of Sections 15 and 16.
611 |
612 | If the disclaimer of warranty and limitation of liability provided
613 | above cannot be given local legal effect according to their terms,
614 | reviewing courts shall apply local law that most closely approximates
615 | an absolute waiver of all civil liability in connection with the
616 | Program, unless a warranty or assumption of liability accompanies a
617 | copy of the Program in return for a fee.
618 |
619 | END OF TERMS AND CONDITIONS
620 |
621 | How to Apply These Terms to Your New Programs
622 |
623 | If you develop a new program, and you want it to be of the greatest
624 | possible use to the public, the best way to achieve this is to make it
625 | free software which everyone can redistribute and change under these terms.
626 |
627 | To do so, attach the following notices to the program. It is safest
628 | to attach them to the start of each source file to most effectively
629 | state the exclusion of warranty; and each file should have at least
630 | the "copyright" line and a pointer to where the full notice is found.
631 |
632 |
633 | Copyright (C)
634 |
635 | This program is free software: you can redistribute it and/or modify
636 | it under the terms of the GNU Affero General Public License as published by
637 | the Free Software Foundation, either version 3 of the License, or
638 | (at your option) any later version.
639 |
640 | This program is distributed in the hope that it will be useful,
641 | but WITHOUT ANY WARRANTY; without even the implied warranty of
642 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
643 | GNU Affero General Public License for more details.
644 |
645 | You should have received a copy of the GNU Affero General Public License
646 | along with this program. If not, see .
647 |
648 | Also add information on how to contact you by electronic and paper mail.
649 |
650 | If your software can interact with users remotely through a computer
651 | network, you should also make sure that it provides a way for users to
652 | get its source. For example, if your program is a web application, its
653 | interface could display a "Source" link that leads users to an archive
654 | of the code. There are many ways you could offer source, and different
655 | solutions will be better for different programs; see section 13 for the
656 | specific requirements.
657 |
658 | You should also get your employer (if you work as a programmer) or school,
659 | if any, to sign a "copyright disclaimer" for the program, if necessary.
660 | For more information on this, and how to apply and follow the GNU AGPL, see
661 | .
662 |
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1 | /*!
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3 | * Copyright 2011-2019 The Bootstrap Authors (https://github.com/twbs/bootstrap/graphs/contributors)
4 | * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
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