prosody
0d1cd3185299
net/http/parser.lua

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net/http/parser.lua @ 13176:0d1cd3185299

mod_http_file_share: Put 'expires' back, thought it was unused Removed in 536055476912 because it was not used anywhere else in the file, but per the documentation it is meant to inform external upload services of the expiry time of the upload itself.
author Kim Alvefur <zash@zash.se>
date Sun, 02 Jul 2023 14:31:00 +0200
parent 12974:ba409c67353b
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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fc5d3b053454 net.http.{server|codes|parser}: Initial commit.
Waqas Hussain <waqas20@gmail.com>
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1 local tonumber = tonumber;
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2 local assert = assert;
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d54999db3aa1 net.http.parser: Do full URL decoding and parsing (e.g. adds request.url.query when present)
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3 local url_parse = require "socket.url".parse;
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ba409c67353b net: Prefix module imports with prosody namespace
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4 local urldecode = require "prosody.util.http".urldecode;
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5 local dbuffer = require "prosody.util.dbuffer";
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6
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7 local function preprocess_path(path)
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61c47d26481d net.http.parser: Fix syntax error introduced in c5edb08fc7cb.
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8 path = urldecode((path:gsub("//+", "/")));
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9 if path:sub(1,1) ~= "/" then
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10 path = "/"..path;
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11 end
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12 local level = 0;
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13 for component in path:gmatch("([^/]+)/") do
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14 if component == ".." then
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15 level = level - 1;
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16 elseif component ~= "." then
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17 level = level + 1;
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18 end
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19 if level < 0 then
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20 return nil;
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21 end
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22 end
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23 return path;
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24 end
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25
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26 local httpstream = {};
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27
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28 function httpstream.new(success_cb, error_cb, parser_type, options_cb)
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29 local client = true;
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30 if not parser_type or parser_type == "server" then client = false; else assert(parser_type == "client", "Invalid parser type"); end
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65bf55fdf971 net.http.parser: Allow limits to be configurable via options callback
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31 local bodylimit = tonumber(options_cb and options_cb().body_size_limit) or 10*1024*1024;
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32 -- https://stackoverflow.com/a/686243
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33 -- Individual headers can be up to 16k? What madness?
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34 local headlimit = tonumber(options_cb and options_cb().head_size_limit) or 10*1024;
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35 local buflimit = tonumber(options_cb and options_cb().buffer_size_limit) or bodylimit * 2;
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36 local buffer = dbuffer.new(buflimit);
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37 local chunked;
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38 local state = nil;
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39 local packet;
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40 local len;
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41 local have_body;
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42 local error;
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43 return {
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a15ce0014ac9 net.http.parser: Remove unused argument [luacheck]
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44 feed = function(_, data)
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45 if error then return nil, "parse has failed"; end
fc5d3b053454 net.http.{server|codes|parser}: Initial commit.
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46 if not data then -- EOF
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47 if state and client and not len then -- reading client body until EOF
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48 buffer:collapse();
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49 packet.body = buffer:read_chunk() or "";
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2ede7f43ccfe net.http.parser: Expose 'partial', 'chunked' and 'body_length' on packets
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50 packet.partial = nil;
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51 success_cb(packet);
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52 state = nil;
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53 elseif buffer:length() ~= 0 then -- unexpected EOF
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55a56dc935f2 net.http: Pass error all the way to callback
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54 error = true; return error_cb("unexpected-eof");
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55 end
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56 return;
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57 end
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58 if not buffer:write(data) then error = true; return error_cb("max-buffer-size-exceeded"); end
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59 while buffer:length() > 0 do
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60 if state == nil then -- read request
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61 local index = buffer:sub(1, headlimit):find("\r\n\r\n", nil, true);
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62 if not index then return; end -- not enough data
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375d31225d53 net.http.parser: Silence warning about unused variable [luacheck]
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63 -- FIXME was reason_phrase meant to be passed on somewhere?
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64 local method, path, httpversion, status_code, reason_phrase; -- luacheck: ignore reason_phrase
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65 local first_line;
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66 local headers = {};
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67 for line in buffer:read(index+3):gmatch("([^\r\n]+)\r\n") do -- parse request
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68 if first_line then
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69 local key, val = line:match("^([^%s:]+): *(.*)$");
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70 if not key then error = true; return error_cb("invalid-header-line"); end -- TODO handle multi-line and invalid headers
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71 key = key:lower();
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72 headers[key] = headers[key] and headers[key]..","..val or val;
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73 else
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74 first_line = line;
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75 if client then
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76 httpversion, status_code, reason_phrase = line:match("^HTTP/(1%.[01]) (%d%d%d) (.*)$");
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3ecae471d9dd net.http.parser: Convert status_code to a number before trying to compare it to numbers
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77 status_code = tonumber(status_code);
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78 if not status_code then error = true; return error_cb("invalid-status-line"); end
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79 have_body = not
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80 ( (options_cb and options_cb().method == "HEAD")
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81 or (status_code == 204 or status_code == 304 or status_code == 301)
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82 or (status_code >= 100 and status_code < 200) );
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83 else
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84 method, path, httpversion = line:match("^(%w+) (%S+) HTTP/(1%.[01])$");
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85 if not method then error = true; return error_cb("invalid-status-line"); end
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86 end
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87 end
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88 end
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01f7522049fb net.http.parser: Abort if no status line is received.
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89 if not first_line then error = true; return error_cb("invalid-status-line"); end
5463
111953bfe767 net.http.parser: Fix chunked encoding response parsing, and make it more robust
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90 chunked = have_body and headers["transfer-encoding"] == "chunked";
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91 len = tonumber(headers["content-length"]); -- TODO check for invalid len
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92 if client then
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93 -- FIXME handle '100 Continue' response (by skipping it)
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94 if not have_body then len = 0; end
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95 packet = {
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96 code = status_code;
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97 httpversion = httpversion;
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98 headers = headers;
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99 body = false;
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100 body_length = len;
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101 chunked = chunked;
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102 partial = true;
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103 -- COMPAT the properties below are deprecated
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104 responseversion = httpversion;
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105 responseheaders = headers;
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106 };
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107 else
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108 local parsed_url;
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109 if path:byte() == 47 then -- starts with /
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110 local _path, _query = path:match("([^?]*).?(.*)");
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111 if _query == "" then _query = nil; end
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112 parsed_url = { path = _path, query = _query };
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113 else
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114 parsed_url = url_parse(path);
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4c30f638ff55 net.http.parser: Ensure full URL in status line contains a path.
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115 if not(parsed_url and parsed_url.path) then error = true; return error_cb("invalid-url"); end
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116 end
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117 path = preprocess_path(parsed_url.path);
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45bb378a4a98 net.http.parser: Keep the Host header no host is present in the URI
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118 headers.host = parsed_url.host or headers.host;
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119
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120 len = len or 0;
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121 packet = {
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122 method = method;
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123 url = parsed_url;
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124 path = path;
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125 httpversion = httpversion;
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126 headers = headers;
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127 body = false;
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128 body_sink = nil;
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129 chunked = chunked;
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130 partial = true;
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131 };
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132 end
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133 if not len or len > bodylimit then
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134 -- Early notification, for redirection
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135 success_cb(packet);
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136 if not packet.body_sink and (len and len > bodylimit) then
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137 error = true;
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138 return error_cb("content-length-limit-exceeded");
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139 end
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140 end
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141 if chunked and not packet.body_sink then
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142 success_cb(packet);
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143 if not packet.body_sink then
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144 packet.body_buffer = dbuffer.new(buflimit);
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145 end
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146 end
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147 state = true;
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148 end
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149 if state then -- read body
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150 if chunked then
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151 local chunk_header = buffer:sub(1, 512); -- XXX How large do chunk headers grow?
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152 local chunk_size, chunk_start = chunk_header:match("^(%x+)[^\r\n]*\r\n()");
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153 if not chunk_size then return; end
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154 chunk_size = chunk_size and tonumber(chunk_size, 16);
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155 if not chunk_size then error = true; return error_cb("invalid-chunk-size"); end
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156
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157 if chunk_size == 0 and chunk_header:find("\r\n\r\n", chunk_start-2, true) then
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158 local body_buffer = packet.body_buffer;
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159 if body_buffer then
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160 packet.body_buffer = nil;
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161 body_buffer:collapse();
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162 packet.body = body_buffer:read_chunk() or "";
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163 end
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164
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165 buffer:collapse();
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166 local buf = buffer:read_chunk();
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167 buf = buf:gsub("^.-\r\n\r\n", ""); -- This ensure extensions and trailers are stripped
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168 buffer:write(buf);
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169 state, chunked = nil, nil;
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170 packet.partial = nil;
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171 success_cb(packet);
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172 elseif buffer:length() - chunk_start - 1 >= chunk_size then -- we have a chunk
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173 buffer:discard(chunk_start - 1);
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174 (packet.body_sink or packet.body_buffer):write(buffer:read(chunk_size));
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175 buffer:discard(2); -- CRLF
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176 else -- Partial chunk remaining
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177 break;
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178 end
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179 elseif packet.body_sink then
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180 local chunk = buffer:read_chunk(len);
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181 while chunk and (not len or len > 0) do
11021
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diff changeset
182 if packet.body_sink:write(chunk) then
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183 if len then
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184 len = len - #chunk;
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185 end
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186 chunk = buffer:read_chunk(len);
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187 else
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188 error = true;
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189 return error_cb("body-sink-write-failure");
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190 end
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191 end
11184
2ede7f43ccfe net.http.parser: Expose 'partial', 'chunked' and 'body_length' on packets
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192 if len == 0 then
2ede7f43ccfe net.http.parser: Expose 'partial', 'chunked' and 'body_length' on packets
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diff changeset
193 state = nil;
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194 packet.partial = nil;
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diff changeset
195 success_cb(packet);
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parents: 11029
diff changeset
196 end
12882
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diff changeset
197 elseif not len or buffer:length() >= len then -- or not len
11020
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198 assert(not chunked)
12882
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diff changeset
199 packet.body = len and buffer:read(len) or buffer:read_chunk() or "";
11184
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diff changeset
200 state = nil;
2ede7f43ccfe net.http.parser: Expose 'partial', 'chunked' and 'body_length' on packets
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diff changeset
201 packet.partial = nil;
2ede7f43ccfe net.http.parser: Expose 'partial', 'chunked' and 'body_length' on packets
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diff changeset
202 success_cb(packet);
4910
e5ec60dfb202 net.http.parser: Break loop when no more usable data in buffer
Matthew Wild <mwild1@gmail.com>
parents: 4879
diff changeset
203 else
e5ec60dfb202 net.http.parser: Break loop when no more usable data in buffer
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parents: 4879
diff changeset
204 break;
4631
fc5d3b053454 net.http.{server|codes|parser}: Initial commit.
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parents:
diff changeset
205 end
11020
7076ed654ac9 net.http.parser: Switch to util.dbuffer for buffering incoming data
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206 else
7076ed654ac9 net.http.parser: Switch to util.dbuffer for buffering incoming data
Kim Alvefur <zash@zash.se>
parents: 10580
diff changeset
207 break;
4631
fc5d3b053454 net.http.{server|codes|parser}: Initial commit.
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parents:
diff changeset
208 end
fc5d3b053454 net.http.{server|codes|parser}: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
209 end
fc5d3b053454 net.http.{server|codes|parser}: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
210 end;
fc5d3b053454 net.http.{server|codes|parser}: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
211 };
fc5d3b053454 net.http.{server|codes|parser}: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
212 end
fc5d3b053454 net.http.{server|codes|parser}: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
213
fc5d3b053454 net.http.{server|codes|parser}: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
214 return httpstream;