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## Get the size of the image file using Lua. | |
## Cf. http://wiki.nginx.org/HttpLuaModule#set_by_lua. | |
location ~* \.(?:gif|jpe?g|png)$ { | |
set_by_lua $img_file_size ' | |
function fsize (file) | |
local current = file:seek() -- get current position | |
local size = file:seek("end") -- get file size | |
file:seek("set", current) -- restore position | |
return size | |
end | |
fsize(ngx.var.request_filename)'; | |
} |
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