archwiki: Add simple challenge for Chinese IP addresses

The wiki has been hammered with requests from some stupid Chinese bots/crawlers. Adding a simple challenge (requiring a cookie to be set), seems to be enough to throw them off.

This was initially added for all pages, but as that could affect Chinese search engines (concern raised on the forum[1]), it was changed to only affect "action views", which search engines are not supposed to crawl.

[1] https://bbs.archlinux.org/viewtopic.php?pid=2185963#p2185963

requested review from @foutrelis and @lahwaacz

added 2 commits

• 003d6eea - fixup! geoip2
• 2670d43b - fixup! archwiki: simple challenge for CN

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• 3441a6a7 - fixup! geoip2

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• 91809d59 - make @foutrelis happy :)

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added 8 commits

• 91809d59...c819f8bc - 2 commits from branch archlinux:master
• 38857531 - geoip2
• b6364b63 - archwiki: simple challenge for CN
• 4bc864fa - fixup! geoip2
• 2bb2a0c2 - fixup! archwiki: simple challenge for CN
• dbd0968f - fixup! geoip2
• 76e9bb83 - make @foutrelis happy :)

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added 1 commit

• 1071f013 - fixup! geoip2

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• f0266b93 - fixup! geoip2

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resolved all threads

added 1 commit

• b7725d61 - fixup! archwiki: simple challenge for CN

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added 10 commits

• b7725d61...a4212400 - 8 commits from branch archlinux:master
• db81eb5c - nginx: Add option for installing extra modules
• f9217916 - archwiki: Add simple challenge for Chinese IP addresses

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resolved all threads

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• 85516b82 - archwiki: Add simple challenge for Chinese IP addresses

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marked this merge request as ready