prosody
0c077800cd70
net/http/parser.lua

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net/http/parser.lua @ 8681:0c077800cd70

util.async: Make parameters to async.runner() optional
author Matthew Wild <mwild1@gmail.com>
date Fri, 23 Mar 2018 14:02:33 +0000
parent 8045:55a56dc935f2
child 10540:375d31225d53
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
4631
fc5d3b053454 net.http.{server|codes|parser}: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
1 local tonumber = tonumber;
fc5d3b053454 net.http.{server|codes|parser}: Initial commit.
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2 local assert = assert;
7575
3ae247af68f4 net.http.parser: Buffer into a table to reduce GC pressure, collapse to string when needed (fixes #603)
Kim Alvefur <zash@zash.se>
parents: 6523
diff changeset
3 local t_insert, t_concat = table.insert, table.concat;
4866
d54999db3aa1 net.http.parser: Do full URL decoding and parsing (e.g. adds request.url.query when present)
Matthew Wild <mwild1@gmail.com>
parents: 4716
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4 local url_parse = require "socket.url".parse;
5460
274c10668fe8 net.http.parser: Depend on util.http instead of net.http for urlencode
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parents: 5323
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5 local urldecode = require "util.http".urldecode;
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parents:
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6
4716
6eeb142a8073 mod_http_files, net.http.parser: Move path normalization to net.http.parser so that all modules can benefit
Matthew Wild <mwild1@gmail.com>
parents: 4712
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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("//+", "/")));
4716
6eeb142a8073 mod_http_files, net.http.parser: Move path normalization to net.http.parser so that all modules can benefit
Matthew Wild <mwild1@gmail.com>
parents: 4712
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9 if path:sub(1,1) ~= "/" then
6eeb142a8073 mod_http_files, net.http.parser: Move path normalization to net.http.parser so that all modules can benefit
Matthew Wild <mwild1@gmail.com>
parents: 4712
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10 path = "/"..path;
6eeb142a8073 mod_http_files, net.http.parser: Move path normalization to net.http.parser so that all modules can benefit
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parents: 4712
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11 end
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parents: 4712
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12 local level = 0;
6eeb142a8073 mod_http_files, net.http.parser: Move path normalization to net.http.parser so that all modules can benefit
Matthew Wild <mwild1@gmail.com>
parents: 4712
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13 for component in path:gmatch("([^/]+)/") do
6eeb142a8073 mod_http_files, net.http.parser: Move path normalization to net.http.parser so that all modules can benefit
Matthew Wild <mwild1@gmail.com>
parents: 4712
diff changeset
14 if component == ".." then
6eeb142a8073 mod_http_files, net.http.parser: Move path normalization to net.http.parser so that all modules can benefit
Matthew Wild <mwild1@gmail.com>
parents: 4712
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15 level = level - 1;
6eeb142a8073 mod_http_files, net.http.parser: Move path normalization to net.http.parser so that all modules can benefit
Matthew Wild <mwild1@gmail.com>
parents: 4712
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16 elseif component ~= "." then
6eeb142a8073 mod_http_files, net.http.parser: Move path normalization to net.http.parser so that all modules can benefit
Matthew Wild <mwild1@gmail.com>
parents: 4712
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17 level = level + 1;
6eeb142a8073 mod_http_files, net.http.parser: Move path normalization to net.http.parser so that all modules can benefit
Matthew Wild <mwild1@gmail.com>
parents: 4712
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18 end
6eeb142a8073 mod_http_files, net.http.parser: Move path normalization to net.http.parser so that all modules can benefit
Matthew Wild <mwild1@gmail.com>
parents: 4712
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19 if level < 0 then
6eeb142a8073 mod_http_files, net.http.parser: Move path normalization to net.http.parser so that all modules can benefit
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20 return nil;
6eeb142a8073 mod_http_files, net.http.parser: Move path normalization to net.http.parser so that all modules can benefit
Matthew Wild <mwild1@gmail.com>
parents: 4712
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21 end
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Matthew Wild <mwild1@gmail.com>
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22 end
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parents: 4712
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23 return path;
6eeb142a8073 mod_http_files, net.http.parser: Move path normalization to net.http.parser so that all modules can benefit
Matthew Wild <mwild1@gmail.com>
parents: 4712
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24 end
6eeb142a8073 mod_http_files, net.http.parser: Move path normalization to net.http.parser so that all modules can benefit
Matthew Wild <mwild1@gmail.com>
parents: 4712
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25
4631
fc5d3b053454 net.http.{server|codes|parser}: Initial commit.
Waqas Hussain <waqas20@gmail.com>
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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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3ae247af68f4 net.http.parser: Buffer into a table to reduce GC pressure, collapse to string when needed (fixes #603)
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31 local buf, buflen, buftable = {}, 0, true;
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65bf55fdf971 net.http.parser: Allow limits to be configurable via options callback
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32 local bodylimit = tonumber(options_cb and options_cb().body_size_limit) or 10*1024*1024;
65bf55fdf971 net.http.parser: Allow limits to be configurable via options callback
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33 local buflimit = tonumber(options_cb and options_cb().buffer_size_limit) or bodylimit * 2;
5463
111953bfe767 net.http.parser: Fix chunked encoding response parsing, and make it more robust
Matthew Wild <mwild1@gmail.com>
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34 local chunked, chunk_size, chunk_start;
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35 local state = nil;
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36 local packet;
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37 local len;
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38 local have_body;
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39 local error;
fc5d3b053454 net.http.{server|codes|parser}: Initial commit.
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40 return {
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a15ce0014ac9 net.http.parser: Remove unused argument [luacheck]
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41 feed = function(_, data)
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42 if error then return nil, "parse has failed"; end
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43 if not data then -- EOF
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3ae247af68f4 net.http.parser: Buffer into a table to reduce GC pressure, collapse to string when needed (fixes #603)
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parents: 6523
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44 if buftable then buf, buftable = t_concat(buf), false; end
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fc5d3b053454 net.http.{server|codes|parser}: Initial commit.
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45 if state and client and not len then -- reading client body until EOF
fc5d3b053454 net.http.{server|codes|parser}: Initial commit.
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46 packet.body = buf;
fc5d3b053454 net.http.{server|codes|parser}: Initial commit.
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47 success_cb(packet);
fc5d3b053454 net.http.{server|codes|parser}: Initial commit.
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48 elseif buf ~= "" then -- unexpected EOF
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55a56dc935f2 net.http: Pass error all the way to callback
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49 error = true; return error_cb("unexpected-eof");
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50 end
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51 return;
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52 end
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53 if buftable then
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54 t_insert(buf, data);
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55 else
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56 buf = { buf, data };
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57 buftable = true;
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58 end
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59 buflen = buflen + #data;
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3dc52f1778db net.http.parser: Add a limit on maximum buffer size, default to 20M
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60 if buflen > buflimit then error = true; return error_cb("max-buffer-size-exceeded"); end
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61 while buflen > 0 do
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fc5d3b053454 net.http.{server|codes|parser}: Initial commit.
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62 if state == nil then -- read request
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63 if buftable then buf, buftable = t_concat(buf), false; end
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fc5d3b053454 net.http.{server|codes|parser}: Initial commit.
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parents:
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64 local index = buf:find("\r\n\r\n", nil, true);
fc5d3b053454 net.http.{server|codes|parser}: Initial commit.
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65 if not index then return; end -- not enough data
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66 local method, path, httpversion, status_code, reason_phrase;
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67 local first_line;
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68 local headers = {};
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69 for line in buf:sub(1,index+1):gmatch("([^\r\n]+)\r\n") do -- parse request
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70 if first_line then
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71 local key, val = line:match("^([^%s:]+): *(.*)$");
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72 if not key then error = true; return error_cb("invalid-header-line"); end -- TODO handle multi-line and invalid headers
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73 key = key:lower();
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74 headers[key] = headers[key] and headers[key]..","..val or val;
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75 else
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76 first_line = line;
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77 if client then
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78 httpversion, status_code, reason_phrase = line:match("^HTTP/(1%.[01]) (%d%d%d) (.*)$");
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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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79 status_code = tonumber(status_code);
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80 if not status_code then error = true; return error_cb("invalid-status-line"); end
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81 have_body = not
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82 ( (options_cb and options_cb().method == "HEAD")
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83 or (status_code == 204 or status_code == 304 or status_code == 301)
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84 or (status_code >= 100 and status_code < 200) );
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85 else
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86 method, path, httpversion = line:match("^(%w+) (%S+) HTTP/(1%.[01])$");
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87 if not method then error = true; return error_cb("invalid-status-line"); end
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88 end
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89 end
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90 end
5291
01f7522049fb net.http.parser: Abort if no status line is received.
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91 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
Matthew Wild <mwild1@gmail.com>
parents: 5462
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92 chunked = have_body and headers["transfer-encoding"] == "chunked";
4631
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93 len = tonumber(headers["content-length"]); -- TODO check for invalid len
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d3646443a02e net.http.parser: Add a limit on content length, default to 10M
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94 if len and len > bodylimit then error = true; return error_cb("content-length-limit-exceeded"); end
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95 if client then
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96 -- FIXME handle '100 Continue' response (by skipping it)
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97 if not have_body then len = 0; end
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98 packet = {
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99 code = status_code;
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100 httpversion = httpversion;
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101 headers = headers;
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102 body = have_body and "" or nil;
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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
5259
c85c348253bd net.http.parser: Skip url.parse when we don't have a full URL (also fixes traceback on paths starting with '//').
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108 local parsed_url;
c85c348253bd net.http.parser: Skip url.parse when we don't have a full URL (also fixes traceback on paths starting with '//').
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109 if path:byte() == 47 then -- starts with /
c85c348253bd net.http.parser: Skip url.parse when we don't have a full URL (also fixes traceback on paths starting with '//').
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110 local _path, _query = path:match("([^?]*).?(.*)");
c85c348253bd net.http.parser: Skip url.parse when we don't have a full URL (also fixes traceback on paths starting with '//').
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111 if _query == "" then _query = nil; end
c85c348253bd net.http.parser: Skip url.parse when we don't have a full URL (also fixes traceback on paths starting with '//').
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112 parsed_url = { path = _path, query = _query };
c85c348253bd net.http.parser: Skip url.parse when we don't have a full URL (also fixes traceback on paths starting with '//').
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113 else
c85c348253bd net.http.parser: Skip url.parse when we don't have a full URL (also fixes traceback on paths starting with '//').
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114 parsed_url = url_parse(path);
5323
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
5259
c85c348253bd net.http.parser: Skip url.parse when we don't have a full URL (also fixes traceback on paths starting with '//').
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116 end
4866
d54999db3aa1 net.http.parser: Do full URL decoding and parsing (e.g. adds request.url.query when present)
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117 path = preprocess_path(parsed_url.path);
4879
45bb378a4a98 net.http.parser: Keep the Host header no host is present in the URI
Kim Alvefur <zash@zash.se>
parents: 4866
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118 headers.host = parsed_url.host or headers.host;
4712
4fc99f1b7570 net.http.parser: Handle full URLs in status line.
Waqas Hussain <waqas20@gmail.com>
parents: 4631
diff changeset
119
4631
fc5d3b053454 net.http.{server|codes|parser}: Initial commit.
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120 len = len or 0;
fc5d3b053454 net.http.{server|codes|parser}: Initial commit.
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121 packet = {
fc5d3b053454 net.http.{server|codes|parser}: Initial commit.
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122 method = method;
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d54999db3aa1 net.http.parser: Do full URL decoding and parsing (e.g. adds request.url.query when present)
Matthew Wild <mwild1@gmail.com>
parents: 4716
diff changeset
123 url = parsed_url;
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fc5d3b053454 net.http.{server|codes|parser}: Initial commit.
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parents:
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124 path = path;
fc5d3b053454 net.http.{server|codes|parser}: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
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125 httpversion = httpversion;
fc5d3b053454 net.http.{server|codes|parser}: Initial commit.
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126 headers = headers;
fc5d3b053454 net.http.{server|codes|parser}: Initial commit.
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127 body = nil;
fc5d3b053454 net.http.{server|codes|parser}: Initial commit.
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128 };
fc5d3b053454 net.http.{server|codes|parser}: Initial commit.
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129 end
fc5d3b053454 net.http.{server|codes|parser}: Initial commit.
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parents:
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130 buf = buf:sub(index + 4);
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3ae247af68f4 net.http.parser: Buffer into a table to reduce GC pressure, collapse to string when needed (fixes #603)
Kim Alvefur <zash@zash.se>
parents: 6523
diff changeset
131 buflen = #buf;
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fc5d3b053454 net.http.{server|codes|parser}: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
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132 state = true;
fc5d3b053454 net.http.{server|codes|parser}: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
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133 end
fc5d3b053454 net.http.{server|codes|parser}: Initial commit.
Waqas Hussain <waqas20@gmail.com>
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134 if state then -- read body
fc5d3b053454 net.http.{server|codes|parser}: Initial commit.
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135 if client then
fc5d3b053454 net.http.{server|codes|parser}: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
136 if chunked then
7635
6879a220917b net.http.parser: Don't collapse buffer when expecting a chunk and not enough data has been received
Kim Alvefur <zash@zash.se>
parents: 7634
diff changeset
137 if chunk_start and buflen - chunk_start - 2 < chunk_size then
6879a220917b net.http.parser: Don't collapse buffer when expecting a chunk and not enough data has been received
Kim Alvefur <zash@zash.se>
parents: 7634
diff changeset
138 return;
6879a220917b net.http.parser: Don't collapse buffer when expecting a chunk and not enough data has been received
Kim Alvefur <zash@zash.se>
parents: 7634
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139 end -- not enough data
7575
3ae247af68f4 net.http.parser: Buffer into a table to reduce GC pressure, collapse to string when needed (fixes #603)
Kim Alvefur <zash@zash.se>
parents: 6523
diff changeset
140 if buftable then buf, buftable = t_concat(buf), false; end
5463
111953bfe767 net.http.parser: Fix chunked encoding response parsing, and make it more robust
Matthew Wild <mwild1@gmail.com>
parents: 5462
diff changeset
141 if not buf:find("\r\n", nil, true) then
111953bfe767 net.http.parser: Fix chunked encoding response parsing, and make it more robust
Matthew Wild <mwild1@gmail.com>
parents: 5462
diff changeset
142 return;
111953bfe767 net.http.parser: Fix chunked encoding response parsing, and make it more robust
Matthew Wild <mwild1@gmail.com>
parents: 5462
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143 end -- not enough data
111953bfe767 net.http.parser: Fix chunked encoding response parsing, and make it more robust
Matthew Wild <mwild1@gmail.com>
parents: 5462
diff changeset
144 if not chunk_size then
111953bfe767 net.http.parser: Fix chunked encoding response parsing, and make it more robust
Matthew Wild <mwild1@gmail.com>
parents: 5462
diff changeset
145 chunk_size, chunk_start = buf:match("^(%x+)[^\r\n]*\r\n()");
111953bfe767 net.http.parser: Fix chunked encoding response parsing, and make it more robust
Matthew Wild <mwild1@gmail.com>
parents: 5462
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146 chunk_size = chunk_size and tonumber(chunk_size, 16);
111953bfe767 net.http.parser: Fix chunked encoding response parsing, and make it more robust
Matthew Wild <mwild1@gmail.com>
parents: 5462
diff changeset
147 if not chunk_size then error = true; return error_cb("invalid-chunk-size"); end
4631
fc5d3b053454 net.http.{server|codes|parser}: Initial commit.
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parents:
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148 end
5463
111953bfe767 net.http.parser: Fix chunked encoding response parsing, and make it more robust
Matthew Wild <mwild1@gmail.com>
parents: 5462
diff changeset
149 if chunk_size == 0 and buf:find("\r\n\r\n", chunk_start-2, true) then
111953bfe767 net.http.parser: Fix chunked encoding response parsing, and make it more robust
Matthew Wild <mwild1@gmail.com>
parents: 5462
diff changeset
150 state, chunk_size = nil, nil;
111953bfe767 net.http.parser: Fix chunked encoding response parsing, and make it more robust
Matthew Wild <mwild1@gmail.com>
parents: 5462
diff changeset
151 buf = buf:gsub("^.-\r\n\r\n", ""); -- This ensure extensions and trailers are stripped
111953bfe767 net.http.parser: Fix chunked encoding response parsing, and make it more robust
Matthew Wild <mwild1@gmail.com>
parents: 5462
diff changeset
152 success_cb(packet);
7575
3ae247af68f4 net.http.parser: Buffer into a table to reduce GC pressure, collapse to string when needed (fixes #603)
Kim Alvefur <zash@zash.se>
parents: 6523
diff changeset
153 elseif buflen - chunk_start - 2 >= chunk_size then -- we have a chunk
5475
c2c9f07c5d6a net.http.parser: Fix off-by-one error in chunked encoding parser
Matthew Wild <mwild1@gmail.com>
parents: 5463
diff changeset
154 packet.body = packet.body..buf:sub(chunk_start, chunk_start + (chunk_size-1));
5463
111953bfe767 net.http.parser: Fix chunked encoding response parsing, and make it more robust
Matthew Wild <mwild1@gmail.com>
parents: 5462
diff changeset
155 buf = buf:sub(chunk_start + chunk_size + 2);
7634
b1132d74f54c net.http.parser: Fix missing buffer length adjustment when parsing chunked streams
Kim Alvefur <zash@zash.se>
parents: 7581
diff changeset
156 buflen = buflen - (chunk_start + chunk_size + 2 - 1);
5463
111953bfe767 net.http.parser: Fix chunked encoding response parsing, and make it more robust
Matthew Wild <mwild1@gmail.com>
parents: 5462
diff changeset
157 chunk_size, chunk_start = nil, nil;
111953bfe767 net.http.parser: Fix chunked encoding response parsing, and make it more robust
Matthew Wild <mwild1@gmail.com>
parents: 5462
diff changeset
158 else -- Partial chunk remaining
111953bfe767 net.http.parser: Fix chunked encoding response parsing, and make it more robust
Matthew Wild <mwild1@gmail.com>
parents: 5462
diff changeset
159 break;
111953bfe767 net.http.parser: Fix chunked encoding response parsing, and make it more robust
Matthew Wild <mwild1@gmail.com>
parents: 5462
diff changeset
160 end
7575
3ae247af68f4 net.http.parser: Buffer into a table to reduce GC pressure, collapse to string when needed (fixes #603)
Kim Alvefur <zash@zash.se>
parents: 6523
diff changeset
161 elseif len and buflen >= len then
3ae247af68f4 net.http.parser: Buffer into a table to reduce GC pressure, collapse to string when needed (fixes #603)
Kim Alvefur <zash@zash.se>
parents: 6523
diff changeset
162 if buftable then buf, buftable = t_concat(buf), false; end
6523
63d3126b75f1 net.http.parser: Fix whitespace/indentation
Matthew Wild <mwild1@gmail.com>
parents: 6522
diff changeset
163 if packet.code == 101 then
7575
3ae247af68f4 net.http.parser: Buffer into a table to reduce GC pressure, collapse to string when needed (fixes #603)
Kim Alvefur <zash@zash.se>
parents: 6523
diff changeset
164 packet.body, buf, buflen, buftable = buf, {}, 0, true;
6523
63d3126b75f1 net.http.parser: Fix whitespace/indentation
Matthew Wild <mwild1@gmail.com>
parents: 6522
diff changeset
165 else
63d3126b75f1 net.http.parser: Fix whitespace/indentation
Matthew Wild <mwild1@gmail.com>
parents: 6522
diff changeset
166 packet.body, buf = buf:sub(1, len), buf:sub(len + 1);
7575
3ae247af68f4 net.http.parser: Buffer into a table to reduce GC pressure, collapse to string when needed (fixes #603)
Kim Alvefur <zash@zash.se>
parents: 6523
diff changeset
167 buflen = #buf;
6523
63d3126b75f1 net.http.parser: Fix whitespace/indentation
Matthew Wild <mwild1@gmail.com>
parents: 6522
diff changeset
168 end
4631
fc5d3b053454 net.http.{server|codes|parser}: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
169 state = nil; success_cb(packet);
5461
67b674f6a299 net.http.parser: Break when no more usable data in buffer (client part of e5ec60dfb202)
Matthew Wild <mwild1@gmail.com>
parents: 5460
diff changeset
170 else
67b674f6a299 net.http.parser: Break when no more usable data in buffer (client part of e5ec60dfb202)
Matthew Wild <mwild1@gmail.com>
parents: 5460
diff changeset
171 break;
4631
fc5d3b053454 net.http.{server|codes|parser}: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
172 end
7575
3ae247af68f4 net.http.parser: Buffer into a table to reduce GC pressure, collapse to string when needed (fixes #603)
Kim Alvefur <zash@zash.se>
parents: 6523
diff changeset
173 elseif buflen >= len then
3ae247af68f4 net.http.parser: Buffer into a table to reduce GC pressure, collapse to string when needed (fixes #603)
Kim Alvefur <zash@zash.se>
parents: 6523
diff changeset
174 if buftable then buf, buftable = t_concat(buf), false; end
4631
fc5d3b053454 net.http.{server|codes|parser}: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
175 packet.body, buf = buf:sub(1, len), buf:sub(len + 1);
7575
3ae247af68f4 net.http.parser: Buffer into a table to reduce GC pressure, collapse to string when needed (fixes #603)
Kim Alvefur <zash@zash.se>
parents: 6523
diff changeset
176 buflen = #buf;
4631
fc5d3b053454 net.http.{server|codes|parser}: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
177 state = nil; 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
178 else
e5ec60dfb202 net.http.parser: Break loop when no more usable data in buffer
Matthew Wild <mwild1@gmail.com>
parents: 4879
diff changeset
179 break;
4631
fc5d3b053454 net.http.{server|codes|parser}: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
180 end
fc5d3b053454 net.http.{server|codes|parser}: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
181 end
fc5d3b053454 net.http.{server|codes|parser}: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
182 end
fc5d3b053454 net.http.{server|codes|parser}: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
183 end;
fc5d3b053454 net.http.{server|codes|parser}: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
184 };
fc5d3b053454 net.http.{server|codes|parser}: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
185 end
fc5d3b053454 net.http.{server|codes|parser}: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
186
fc5d3b053454 net.http.{server|codes|parser}: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
diff changeset
187 return httpstream;