prosody
3ae247af68f4
net/http/parser.lua

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net/http/parser.lua @ 7575:3ae247af68f4

net.http.parser: Buffer into a table to reduce GC pressure, collapse to string when needed (fixes #603)
author Kim Alvefur <zash@zash.se>
date Sat, 13 Aug 2016 20:19:08 +0200
parent 6523:63d3126b75f1
child 7576:d3646443a02e
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;
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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
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
diff changeset
4 local url_parse = require "socket.url".parse;
5460
274c10668fe8 net.http.parser: Depend on util.http instead of net.http for urlencode
Matthew Wild <mwild1@gmail.com>
parents: 5323
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5 local urldecode = require "util.http".urldecode;
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parents:
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6
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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.
Waqas Hussain <waqas20@gmail.com>
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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
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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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
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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
Matthew Wild <mwild1@gmail.com>
parents: 4712
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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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22 end
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Matthew Wild <mwild1@gmail.com>
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
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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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parents: 6523
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31 local buf, buflen, buftable = {}, 0, true;
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111953bfe767 net.http.parser: Fix chunked encoding response parsing, and make it more robust
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parents: 5462
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32 local chunked, chunk_size, chunk_start;
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33 local state = nil;
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34 local packet;
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35 local len;
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36 local have_body;
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37 local error;
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38 return {
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39 feed = function(self, data)
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40 if error then return nil, "parse has failed"; end
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parents:
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41 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)
Kim Alvefur <zash@zash.se>
parents: 6523
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42 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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43 if state and client and not len then -- reading client body until EOF
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44 packet.body = buf;
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45 success_cb(packet);
fc5d3b053454 net.http.{server|codes|parser}: Initial commit.
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46 elseif buf ~= "" then -- unexpected EOF
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47 error = true; return error_cb();
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48 end
fc5d3b053454 net.http.{server|codes|parser}: Initial commit.
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49 return;
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50 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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51 if buftable then
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52 t_insert(buf, data);
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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53 else
3ae247af68f4 net.http.parser: Buffer into a table to reduce GC pressure, collapse to string when needed (fixes #603)
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54 buf = { buf, data };
3ae247af68f4 net.http.parser: Buffer into a table to reduce GC pressure, collapse to string when needed (fixes #603)
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55 buftable = true;
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parents: 6523
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56 end
3ae247af68f4 net.http.parser: Buffer into a table to reduce GC pressure, collapse to string when needed (fixes #603)
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57 buflen = buflen + #data;
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58 while buflen > 0 do
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fc5d3b053454 net.http.{server|codes|parser}: Initial commit.
Waqas Hussain <waqas20@gmail.com>
parents:
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59 if state == nil then -- read request
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parents: 6523
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60 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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61 local index = buf:find("\r\n\r\n", nil, true);
fc5d3b053454 net.http.{server|codes|parser}: Initial commit.
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62 if not index then return; end -- not enough data
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63 local method, path, httpversion, status_code, reason_phrase;
fc5d3b053454 net.http.{server|codes|parser}: Initial commit.
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64 local first_line;
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65 local headers = {};
fc5d3b053454 net.http.{server|codes|parser}: Initial commit.
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66 for line in buf:sub(1,index+1):gmatch("([^\r\n]+)\r\n") do -- parse request
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67 if first_line then
fc5d3b053454 net.http.{server|codes|parser}: Initial commit.
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68 local key, val = line:match("^([^%s:]+): *(.*)$");
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69 if not key then error = true; return error_cb("invalid-header-line"); end -- TODO handle multi-line and invalid headers
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70 key = key:lower();
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71 headers[key] = headers[key] and headers[key]..","..val or val;
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72 else
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73 first_line = line;
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74 if client then
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75 httpversion, status_code, reason_phrase = line:match("^HTTP/(1%.[01]) (%d%d%d) (.*)$");
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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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76 status_code = tonumber(status_code);
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77 if not status_code then error = true; return error_cb("invalid-status-line"); end
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78 have_body = not
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79 ( (options_cb and options_cb().method == "HEAD")
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80 or (status_code == 204 or status_code == 304 or status_code == 301)
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81 or (status_code >= 100 and status_code < 200) );
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82 else
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83 method, path, httpversion = line:match("^(%w+) (%S+) HTTP/(1%.[01])$");
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84 if not method then error = true; return error_cb("invalid-status-line"); end
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85 end
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86 end
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87 end
5291
01f7522049fb net.http.parser: Abort if no status line is received.
Kim Alvefur <zash@zash.se>
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88 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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89 chunked = have_body and headers["transfer-encoding"] == "chunked";
4631
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90 len = tonumber(headers["content-length"]); -- TODO check for invalid len
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91 if client then
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92 -- FIXME handle '100 Continue' response (by skipping it)
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93 if not have_body then len = 0; end
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94 packet = {
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95 code = status_code;
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96 httpversion = httpversion;
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97 headers = headers;
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98 body = have_body and "" or nil;
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99 -- COMPAT the properties below are deprecated
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100 responseversion = httpversion;
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101 responseheaders = headers;
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102 };
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103 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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parents: 5222
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104 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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parents: 5222
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105 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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106 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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107 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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108 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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109 else
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110 parsed_url = url_parse(path);
5323
4c30f638ff55 net.http.parser: Ensure full URL in status line contains a path.
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111 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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112 end
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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113 path = preprocess_path(parsed_url.path);
4879
45bb378a4a98 net.http.parser: Keep the Host header no host is present in the URI
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114 headers.host = parsed_url.host or headers.host;
4712
4fc99f1b7570 net.http.parser: Handle full URLs in status line.
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115
4631
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116 len = len or 0;
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117 packet = {
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118 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>
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119 url = parsed_url;
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120 path = path;
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121 httpversion = httpversion;
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122 headers = headers;
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123 body = nil;
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124 };
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125 end
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126 buf = buf:sub(index + 4);
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127 buflen = #buf;
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128 state = true;
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129 end
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130 if state then -- read body
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131 if client then
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132 if chunked then
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133 if buftable then buf, buftable = t_concat(buf), false; end
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134 if not buf:find("\r\n", nil, true) then
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135 return;
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136 end -- not enough data
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137 if not chunk_size then
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138 chunk_size, chunk_start = buf:match("^(%x+)[^\r\n]*\r\n()");
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139 chunk_size = chunk_size and tonumber(chunk_size, 16);
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140 if not chunk_size then error = true; return error_cb("invalid-chunk-size"); end
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141 end
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142 if chunk_size == 0 and buf:find("\r\n\r\n", chunk_start-2, true) then
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143 state, chunk_size = nil, nil;
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144 buf = buf:gsub("^.-\r\n\r\n", ""); -- This ensure extensions and trailers are stripped
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145 success_cb(packet);
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146 elseif buflen - chunk_start - 2 >= chunk_size then -- we have a chunk
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147 packet.body = packet.body..buf:sub(chunk_start, chunk_start + (chunk_size-1));
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148 buf = buf:sub(chunk_start + chunk_size + 2);
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149 chunk_size, chunk_start = nil, nil;
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150 else -- Partial chunk remaining
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151 break;
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152 end
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153 elseif len and buflen >= len then
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154 if buftable then buf, buftable = t_concat(buf), false; end
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155 if packet.code == 101 then
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156 packet.body, buf, buflen, buftable = buf, {}, 0, true;
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157 else
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158 packet.body, buf = buf:sub(1, len), buf:sub(len + 1);
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159 buflen = #buf;
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160 end
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161 state = nil; success_cb(packet);
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162 else
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163 break;
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164 end
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165 elseif buflen >= len then
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166 if buftable then buf, buftable = t_concat(buf), false; end
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167 packet.body, buf = buf:sub(1, len), buf:sub(len + 1);
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168 buflen = #buf;
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169 state = nil; success_cb(packet);
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170 else
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171 break;
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172 end
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173 end
fc5d3b053454 net.http.{server|codes|parser}: Initial commit.
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174 end
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175 end;
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176 };
fc5d3b053454 net.http.{server|codes|parser}: Initial commit.
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177 end
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178
fc5d3b053454 net.http.{server|codes|parser}: Initial commit.
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179 return httpstream;