nginx - lua的mongodb庫auth驗證方法耗費時間佔請求的三分之二!請問大神怎麼優化下呢
黄舟
黄舟 2017-05-02 09:22:19
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驗證的方法代碼:

function dbmethods:auth_scram_sha1(username, password) local user = string.gsub(string.gsub(username, '=', '=3D'), ',' , '=2C') local nonce = ngx.encode_base64(string.sub(tostring(math.random()), 3 , 14)) local first_bare = "n=" .. user .. ",r=" .. nonce local sasl_start_payload = ngx.encode_base64("n,," .. first_bare) r, err = self:cmd(attachpairs_start({ saslStart = 1 ; mechanism = "SCRAM-SHA-1" ; autoAuthorize = 1 ; payload = sasl_start_payload ; } , "saslStart" ) ) if not r then return nil, err end local conversationId = r['conversationId'] local server_first = r['payload'] local parsed_s = ngx.decode_base64(server_first) local parsed_t = {} for k, v in string.gmatch(parsed_s, "(%w+)=([^,]*)") do parsed_t[k] = v end local iterations = tonumber(parsed_t['i']) local salt = parsed_t['s'] local rnonce = parsed_t['r'] if not string.sub(rnonce, 1, 12) == nonce then return nil, 'Server returned an invalid nonce.' end local without_proof = "c=biws,r=" .. rnonce local pbkdf2_key = pass_digest ( username , password ) local salted_pass = pbkdf2_hmac_sha1(pbkdf2_key, iterations, ngx.decode_base64(salt), 20) local client_key = ngx.hmac_sha1(salted_pass, "Client Key") local stored_key = ngx.sha1_bin(client_key) local auth_msg = first_bare .. ',' .. parsed_s .. ',' .. without_proof local client_sig = ngx.hmac_sha1(stored_key, auth_msg) local client_key_xor_sig = xor_bytestr(client_key, client_sig) local client_proof = "p=" .. ngx.encode_base64(client_key_xor_sig) local client_final = ngx.encode_base64(without_proof .. ',' .. client_proof) local server_key = ngx.hmac_sha1(salted_pass, "Server Key") local server_sig = ngx.encode_base64(ngx.hmac_sha1(server_key, auth_msg)) r, err = self:cmd(attachpairs_start({ saslContinue = 1 ; conversationId = conversationId ; payload = client_final ; } , "saslContinue" ) ) if not r then return nil, err end parsed_s = ngx.decode_base64(r['payload']) parsed_t = {} for k, v in string.gmatch(parsed_s, "(%w+)=([^,]*)") do parsed_t[k] = v end if parsed_t['v'] ~= server_sig then return nil, "Server returned an invalid signature." end if not r['done'] then r, err = self:cmd(attachpairs_start({ saslContinue = 1 ; conversationId = conversationId ; payload = ngx.encode_base64("") ; } , "saslContinue" ) ) if not r then return nil, err end if not r['done'] then return nil, 'SASL conversation failed to complete.' end return 1 end return 1 end

完整文件github的網址:
https://github.com/LuaDist2/l...

黄舟
黄舟

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全部回覆 (3)
黄舟

問一下這個怎麼解決?加了帳號密碼每次要求查詢都要驗證,時間由30ms上升帶500ms

    大家讲道理

    openresty有連接池,只有在首次與資料庫建立連線的時候進行認證,應該沒有太大影響吧

      仅有的幸福

      不需要每次都驗證的吧?

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