a9b3d28215
https://data.tumblr.com doesn't have a valid SSL cert, so we must use http:// instead when we rewrite to it.
46 lines
1.5 KiB
Ruby
46 lines
1.5 KiB
Ruby
module Downloads
|
|
module RewriteStrategies
|
|
class Tumblr < Base
|
|
def rewrite(url, headers, data = {})
|
|
if url =~ %r{^https?://.*tumblr\.com}
|
|
url, headers = rewrite_cdn(url, headers)
|
|
url, headers = rewrite_thumbnails(url, headers)
|
|
end
|
|
|
|
return [url, headers, data]
|
|
end
|
|
|
|
protected
|
|
def rewrite_thumbnails(url, headers)
|
|
if url =~ %r{^https?://.+\.tumblr\.com/(?:\w+/)?(?:tumblr_)?(\w+_)(\d+)(\..+)$}
|
|
match = $1
|
|
given_size = $2
|
|
file_ext = $3
|
|
|
|
big_1280_url = url.sub(match + given_size, match + "1280")
|
|
if file_ext == ".gif"
|
|
res = http_head_request(big_1280_url, headers)
|
|
# Sometimes the 1280 version of a gif is actually a static jpeg. We don't want that so we only use the 1280 version if it really is a gif.
|
|
if res.is_a?(Net::HTTPSuccess) && res["content-type"] == "image/gif"
|
|
return [big_1280_url, headers]
|
|
end
|
|
else
|
|
if http_exists?(big_1280_url, headers)
|
|
return [big_1280_url, headers]
|
|
end
|
|
end
|
|
end
|
|
|
|
return [url, headers]
|
|
end
|
|
|
|
# https://gs1.wac.edgecastcdn.net/8019B6/data.tumblr.com/tumblr_m2dxb8aOJi1rop2v0o1_500.png
|
|
# => http://data.tumblr.com/tumblr_m2dxb8aOJi1rop2v0o1_500.png
|
|
def rewrite_cdn(url, headers)
|
|
url.sub!(%r!\Ahttps?://gs1\.wac\.edgecastcdn\.net/8019B6/data\.tumblr\.com!i, "http://data.tumblr.com")
|
|
return [url, headers]
|
|
end
|
|
end
|
|
end
|
|
end
|