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net/http/codes.lua @ 11665:148075532021
net.server_epoll: Prevent stack overflow of opportunistic writes
net.http.files serving a big enough file on a fast enough connection
with opportunistic_writes enabled could trigger a stack overflow through
repeatedly serving more data that immediately gets sent, draining the
buffer and triggering more data to be sent. This also blocked the server
on a single task until completion or an error.
This change prevents nested opportunistic writes, which should prevent
the stack overflow, at the cost of reduced download speed, but this is
unlikely to be noticeable outside of Gbit networks. Speed at the cost of
blocking other processing is not worth it, especially with the risk of
stack overflow.
author | Kim Alvefur <zash@zash.se> |
---|---|
date | Sun, 11 Jul 2021 09:39:21 +0200 |
parent | 10370:78bda7932f17 |
child | 12548:5133d6e48686 |
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local response_codes = { -- Source: http://www.iana.org/assignments/http-status-codes [100] = "Continue"; -- RFC7231, Section 6.2.1 [101] = "Switching Protocols"; -- RFC7231, Section 6.2.2 [102] = "Processing"; [103] = "Early Hints"; -- [104-199] = "Unassigned"; [200] = "OK"; -- RFC7231, Section 6.3.1 [201] = "Created"; -- RFC7231, Section 6.3.2 [202] = "Accepted"; -- RFC7231, Section 6.3.3 [203] = "Non-Authoritative Information"; -- RFC7231, Section 6.3.4 [204] = "No Content"; -- RFC7231, Section 6.3.5 [205] = "Reset Content"; -- RFC7231, Section 6.3.6 [206] = "Partial Content"; -- RFC7233, Section 4.1 [207] = "Multi-Status"; [208] = "Already Reported"; -- [209-225] = "Unassigned"; [226] = "IM Used"; -- [227-299] = "Unassigned"; [300] = "Multiple Choices"; -- RFC7231, Section 6.4.1 [301] = "Moved Permanently"; -- RFC7231, Section 6.4.2 [302] = "Found"; -- RFC7231, Section 6.4.3 [303] = "See Other"; -- RFC7231, Section 6.4.4 [304] = "Not Modified"; -- RFC7232, Section 4.1 [305] = "Use Proxy"; -- RFC7231, Section 6.4.5 -- [306] = "(Unused)"; -- RFC7231, Section 6.4.6 [307] = "Temporary Redirect"; -- RFC7231, Section 6.4.7 [308] = "Permanent Redirect"; -- [309-399] = "Unassigned"; [400] = "Bad Request"; -- RFC7231, Section 6.5.1 [401] = "Unauthorized"; -- RFC7235, Section 3.1 [402] = "Payment Required"; -- RFC7231, Section 6.5.2 [403] = "Forbidden"; -- RFC7231, Section 6.5.3 [404] = "Not Found"; -- RFC7231, Section 6.5.4 [405] = "Method Not Allowed"; -- RFC7231, Section 6.5.5 [406] = "Not Acceptable"; -- RFC7231, Section 6.5.6 [407] = "Proxy Authentication Required"; -- RFC7235, Section 3.2 [408] = "Request Timeout"; -- RFC7231, Section 6.5.7 [409] = "Conflict"; -- RFC7231, Section 6.5.8 [410] = "Gone"; -- RFC7231, Section 6.5.9 [411] = "Length Required"; -- RFC7231, Section 6.5.10 [412] = "Precondition Failed"; -- RFC7232, Section 4.2 [413] = "Payload Too Large"; -- RFC7231, Section 6.5.11 [414] = "URI Too Long"; -- RFC7231, Section 6.5.12 [415] = "Unsupported Media Type"; -- RFC7231, Section 6.5.13 [416] = "Range Not Satisfiable"; -- RFC7233, Section 4.4 [417] = "Expectation Failed"; -- RFC7231, Section 6.5.14 [418] = "I'm a teapot"; -- RFC2324, Section 2.3.2 -- [419-420] = "Unassigned"; [421] = "Misdirected Request"; -- RFC7540, Section 9.1.2 [422] = "Unprocessable Entity"; [423] = "Locked"; [424] = "Failed Dependency"; [425] = "Too Early"; [426] = "Upgrade Required"; -- RFC7231, Section 6.5.15 -- [427] = "Unassigned"; [428] = "Precondition Required"; [429] = "Too Many Requests"; -- [430] = "Unassigned"; [431] = "Request Header Fields Too Large"; -- [432-450] = "Unassigned"; [451] = "Unavailable For Legal Reasons"; -- [452-499] = "Unassigned"; [500] = "Internal Server Error"; -- RFC7231, Section 6.6.1 [501] = "Not Implemented"; -- RFC7231, Section 6.6.2 [502] = "Bad Gateway"; -- RFC7231, Section 6.6.3 [503] = "Service Unavailable"; -- RFC7231, Section 6.6.4 [504] = "Gateway Timeout"; -- RFC7231, Section 6.6.5 [505] = "HTTP Version Not Supported"; -- RFC7231, Section 6.6.6 [506] = "Variant Also Negotiates"; [507] = "Insufficient Storage"; [508] = "Loop Detected"; -- [509] = "Unassigned"; [510] = "Not Extended"; [511] = "Network Authentication Required"; -- [512-599] = "Unassigned"; }; for k,v in pairs(response_codes) do response_codes[k] = ("%03d %s"):format(k, v); end return setmetatable(response_codes, { __index = function(_, k) return k.." Unassigned"; end })