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Change-Id: I8458c8e325d974effd5a8e497a33e7af920391d2
2014-10-05 22:10:08 +02:00
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Change-Id: I506ce97e80a7a70738fca41987f49c2651d13d2d
2014-09-27 20:27:35 +02:00
Luis Felipe Schenone
614c626964
Improved the QuestyCaptcha syntax for setting questions and answers
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Simple change to one method, QuestyCaptcha::getCaptcha, that allows to
set questions and answers like so:
$wgCaptchaQuestions = array(
'The capital of England?' => 'London',
'The capital of France?' => 'Paris',
'The capital of Spain?' => 'Madrid',
);
Backwards compatibility with the previous syntax has been preserved.
Change-Id: Ife16bfb4c63864f8bc9117dad15136288564e2b0
2014-09-26 17:25:09 +08:00
Tim Starling
6f286e52db
Add a gradient to FancyCaptcha
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This defeats naive thresholding, giving Tesseract break rate of 0 out of
1000, even if a sensible threshold value is hand-chosen. Reduced the
text value and noise to make room for the gradient, but kept an SNR of
1.3, as before, which provides good legibility.
Obviously the gradient can be removed with custom preprocessing -- the
point of these changes is to raise the bar from "unconfigured Tessearct"
to "some small amount of developer effort".
Change-Id: I30ebc904ca59bf29a2aa812f881a077a13493e68
2014-09-26 10:41:26 +10:00
Tim Starling
df4806c64c
Improve FancyCaptcha resistance to OCR
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Tesseract is a popular open source OCR package. Running it on
FancyCaptcha images, with no training or configuration, yielded a 56%
break rate. By restricting the character set, the OCR break rate was
improved to 66%.
So:
* Reduce k, increase wob scale, increase rr fuzz. The net effect of
these three changes is to more reliably bend the baseline. In the old
captcha, the baseline would often be bent by chance, but when it
wasn't bent, it provided a very easy challenge for the OCR engine.
This reduced the break rate from 66% to around 40%.
* Introduce additive noise, based on a bilinear upscale of a random
greyscale image. This, combined with the above change, reduces the
Tesseract break rate to 6%.
Change-Id: I05b5bb6475de9378cd89cce13b1b2f28b32cd405
2014-09-26 08:47:55 +10:00
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Change-Id: I9970408d127282b8aac75c42339c7caf8a7d871c
2014-09-22 21:43:40 +02:00
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Change-Id: I52d8670a71d734fdbccd2b475d665e91d090d986
2014-09-20 21:40:10 +02:00
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Change-Id: I03063c8f010efb7e00b62bf9a434c1f24ba43fd3
2014-09-16 19:42:41 +02:00
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Change-Id: I0ae3fafeebb0abec4ce816d812510935f0c2ab8e
2014-09-05 22:44:08 +02:00
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Change-Id: Idcc2f49401996ace8cab4d864f4986199f4ba86d
2014-09-04 22:06:23 +02:00
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Change-Id: I1c183faf3c51b0857c0d15e363376aeb74fd359d
2014-08-31 21:53:31 +02:00
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Change-Id: Ibc1d1ea2e7dd3676ac035fdf12132964651424b2
2014-08-30 22:35:22 +02:00
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Change-Id: I53922105107adcc4bb6c8e727b6bb63d808263bc
2014-08-28 22:28:25 +02:00
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Change-Id: I755ea5bf077e94dfd857c63a77f5f74648c9d5fd
2014-08-27 21:23:29 +02:00
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Change-Id: Idd422e4921502bf0097feb0c77e07c3bc8e52010
2014-08-26 21:47:18 +02:00
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Change-Id: Ib8c5795a0f8f1109802b2927549b4abb39006060
2014-08-20 22:24:53 +02:00
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Merge "Localisation updates from https://translatewiki.net ."
2014-08-17 21:18:10 +00:00
addshore
094ad54e87
Use public instead of var in classes
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Change-Id: I3377fad3d5f9acbfd2a5b2aaeb72b8351af68b13
2014-08-17 22:04:49 +01:00
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Change-Id: I55b37d39b821b45b1fe08d443051057fb6d3c32d
2014-08-17 23:02:32 +02:00
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Change-Id: Icebbca883269f0e960cdd058bc0e6b6863ce0486
2014-08-09 19:53:10 +02:00
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Change-Id: If33438084af9c7c09796d174f1d32c6cb7cb43e6
2014-08-04 21:53:13 +02:00
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Change-Id: I23f289b5c608121fa73dc6311443dc52e50ba964
2014-08-03 22:08:02 +02:00
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Change-Id: Ibead6e6d32aabcfa191708293732cd11d119d649
2014-08-02 22:22:23 +02:00
jdlrobson
5d6f684da3
Make captchas use mw-ui-input when available
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Change-Id: I44453a2cc238721468565403b9625039cb8742ef
2014-07-29 18:40:56 -07:00
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Change-Id: I3c57b5ded0afb0d9b21d82e14d607c12c11f7737
2014-07-24 23:49:30 +02:00
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Change-Id: I3573af8eb23951382dc498bff3e839505d76700e
2014-07-23 22:49:44 +02:00
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Change-Id: I2a2a7740dfee89414ddf50ccf12e4a51e5bc5115
2014-07-22 23:00:28 +02:00
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Change-Id: Ic8e0abcb20c279e6d778e4a87f76bdec79a3ccdb
2014-07-21 21:40:21 +02:00
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Change-Id: I8b0dabacedeaed5d43ec5f36aa2fa0074597d91b
2014-07-20 21:07:15 +02:00
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Change-Id: Iabd6849010ff0f1fe8c064e1afdbe49f7726ea42
2014-07-18 21:27:05 +02:00
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Change-Id: Ib5e53312596a7c00d2d41f6f395a7f8f309c7662
2014-07-17 22:56:33 +02:00
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Change-Id: Id670325ad4e94f6cf497250d321a335389e619ea
2014-07-16 22:00:35 +02:00
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Change-Id: I20e8c47516d2966b42c6c2d09ddb5eb36490303f
2014-07-15 22:05:18 +02:00
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Change-Id: I798d5bfc431dba43ad19fb9c8247c50ce47bb022
2014-07-11 21:55:20 +02:00
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Change-Id: Ib7f804bacabbc449b39e889483d333e7d6e8bc34
2014-07-08 21:00:22 +00:00
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Change-Id: I71573880da0c3b8ec2d6bd4dbdb1ac730bc71b76
2014-07-05 19:55:01 +00:00
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Change-Id: If0bc2ed689aae192d74680fafbc4fc84f18ae4f5
2014-07-04 21:30:15 +00:00
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Change-Id: I0223248b27107a282877f9ab0d1a8d0162f994d0
2014-07-02 19:48:46 +00:00
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Change-Id: I519b40ed0c7fac10872d80d536c6624ed4c3ba58
2014-07-01 20:35:30 +00:00
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Change-Id: Ia82f6b60e34ac5f06601db578696596ff0bd4562
2014-06-30 20:36:40 +00:00
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Change-Id: I477661581d983ffe4d245617afed989d5ab6326b
2014-06-27 20:19:01 +00:00
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Change-Id: Idc81c15e24f413676405eb7502a8fc348a5c5462
2014-06-26 19:28:41 +00:00
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Change-Id: I360c7e102c8dd04cb78fe569cc17694ea49ff68f
2014-06-25 20:35:08 +00:00
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Change-Id: I24b4f28c93d0a7611a53bb63d82e2104070c0b08
2014-06-24 19:59:20 +00:00
Max Semenik
1e5bd7dc3c
Add more words to blacklist
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In adition to profanities, remove silly or questionable words
thus reducing the possibility of captchas like "killkids" or
"allahlies". I understand that this list is still nowhere near
complete, but at least this is a step in the right direction.
For the reference, the current wordlist used for captcha generation
is http://noc.wikimedia.org/~maxsem/words.txt
(words with anything but lowercase letters also get discarded)
Change-Id: Ic1cb0aa688811886e013bc819866abd745d02f68
2014-06-24 11:02:04 -07:00
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Change-Id: Id019d2d82777e9aa03bd2391c463a9dc1aa44247
2014-06-23 19:54:28 +00:00
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Change-Id: I3311c907d47211e3f33ebd2138251a26254e8995
2014-06-19 19:27:35 +00:00
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Change-Id: Ib1d382b8a67e38aad9abdbd70ed0c2e1205558bd
2014-06-18 19:53:00 +00:00
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Change-Id: Ifdc65ab20d7061bd916b7f2e9091fca1339b0c2e
2014-06-16 19:48:56 +00:00
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Change-Id: I98e7b84e0ae1c78fca5222eaa29f2dc4871fdda9
2014-06-06 21:45:53 +00:00