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- -- 功能:还原 HTTP 请求头
- -- 阶段:access_by_lua
- local hdrs, err = ngx.req.get_headers()
- local extHdrs
- for k, v in pairs(hdrs) do
- if k:sub(1, 2) ~= '--' then
- goto continue
- end
- ngx.req.clear_header(k)
- k = k:sub(3)
- if k == 'url' then
- ngx.var._url = v
- elseif k == 'ver' then
- ngx.var._ver = v
- elseif k == 'aceh' then
- ngx.ctx._aceh = 1
- elseif k == 'ext' then
- extHdrs = require('cjson').decode(v)
- else
- if k == 'referer' then
- ngx.var._ref = v
- end
- ngx.req.set_header(k, v)
- end
- ::continue::
- end
- if extHdrs then
- for k, v in pairs(extHdrs) do
- ngx.req.set_header(k, v)
- end
- end
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