1 // ANNA - Anna is Not Nothingness Anymore
3 // (c) Copyright 2005-2014 Eduardo Ramos Testillano & Francisco Ruiz Rayo
5 // http://redmine.teslayout.com/projects/anna-suite
7 // Redistribution and use in source and binary forms, with or without
8 // modification, are permitted provided that the following conditions
11 // * Redistributions of source code must retain the above copyright
12 // notice, this list of conditions and the following disclaimer.
13 // * Redistributions in binary form must reproduce the above
14 // copyright notice, this list of conditions and the following disclaimer
15 // in the documentation and/or other materials provided with the
17 // * Neither the name of the copyright holder nor the names of its
18 // contributors may be used to endorse or promote products derived from
19 // this software without specific prior written permission.
21 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
22 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
23 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
24 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
25 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
26 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
27 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
28 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
29 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
30 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
31 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
33 // Authors: eduardo.ramos.testillano@gmail.com
34 // cisco.tierra@gmail.com
39 #include <anna/core/tracing/Logger.hpp>
41 #include <anna/http/parser/ReadChunkSize.hpp>
43 #include <anna/http/Transport.hpp>
44 #include <anna/http/functions.hpp>
45 #include <anna/http/internal/defines.hpp>
46 #include <anna/http/internal/EncodedBlock.hpp>
52 Se ha comprobado que una vez que parace el Transfer-encoding puede haber un
53 número indeterminado de header antes del chunk (propiemente dicho), pero
54 siempre hay una línea en blanco, que indica que la siguiente línea es la que
55 contiene el tamaño del primer chunk, etc, etc
57 160: 6e 65 63 74 69 6f 6e 3a 20 4b 65 65 70 2d 41 6c nection: Keep-Al
58 176: 69 76 65 0d 0a 54 72 61 6e 73 66 65 72 2d 45 6e ive..Transfer-En
59 192: 63 6f 64 69 6e 67 3a 20 63 68 75 6e 6b 65 64 0d coding: chunked.
60 208: 0a 43 6f 6e 74 65 6e 74 2d 54 79 70 65 3a 20 74 .Content-Type: t
61 224: 65 78 74 2f 70 6c 61 69 6e 0d 0a 0d 0a 31 66 66 ext/plain....1ff <================= ojo
62 240: 38 0d 0a 3c 3f 78 6d 6c 20 76 65 72 73 69 6f 6e 8..<?xml version
63 256: 3d 22 31 2e 30 22 20 65 6e 63 6f 64 69 6e 67 3d ="1.0" encoding=
65 464: 4a 61 6e 20 31 39 39 35 20 32 32 3a 30 30 3a 30 Jan 1995 22:00:0
66 480: 30 20 47 4d 54 0d 0a 43 6f 6e 74 65 6e 74 2d 54 0 GMT..Content-T
67 496: 79 70 65 3a 20 74 65 78 74 2f 68 74 6d 6c 0d 0a ype: text/html..
68 512: 54 72 61 6e 73 66 65 72 2d 65 6e 63 6f 64 69 6e Transfer-encodin
69 528: 67 3a 20 63 68 75 6e 6b 65 64 0d 0a 43 6f 6e 6e g: chunked..Conn
70 544: 65 63 74 69 6f 6e 3a 20 4b 65 65 70 2d 41 6c 69 ection: Keep-Ali
71 560: 76 65 0d 0a 0d 0a 35 34 20 20 20 20 20 0d 0a 3c ve....54 ..< <================= ojo
72 576: 21 2d 2d 20 6c 30 37 2e 6d 65 6d 62 65 72 2e 75 !-- l07.member.u
73 592: 6b 6c 2e 79 61 68 6f 6f 2e 63 6f 6d 20 75 6e 63 kl.yahoo.com unc
74 608: 6f 6d 70 72 65 73 73 65 64 2f 63 68 75 6e 6b 65 ompressed/chunke
75 624: 64 20 57 65 64 20 53 65 70 20 20 33 20 31 30 3a d Wed Sep 3 10:
76 640: 31 34 3a 31 31 20 47 4d 54 20 32 30 30 38 20 2d 14:11 GMT 2008 -
77 656: 2d 3e 0a 0d 0a 30 0d 0a 0d 0a ->...0....
80 Date: Fri, 31 Dec 1999 23:59:59 GMT
81 Content-Type: text/plain
82 Transfer-Encoding: chunked
85 abcdefghijklmnopqrstuvwxyz
89 some-footer: some-value
90 another-footer: another-value
92 Después del tamamño del chunk puede venir un "; y parámetros extras".
94 int http::parser::ReadChunkSize::processLine(http::Transport& transport, const DataBlock& dataBlock, const http::Token& line) const
95 throw(RuntimeException) {
97 EncodedBlock* encodedBlock = transport.getEncodedBlock();
99 if(line.contains(';') == false) {
100 const std::string& hexstr = line.getStringValue();
101 sscanf(hexstr.c_str(), "%x", &chunkSize);
102 encodedBlock->setExpectedSize(chunkSize);
104 const Tokenizer& tokenizer = transport.split(line, ';');
105 const Token* token = tokenizer [0];
106 const std::string& hexstr = token->getStringValue();
107 sscanf(hexstr.c_str(), "%x", &chunkSize);
108 encodedBlock->setExpectedSize(chunkSize);
111 * Los parámetros extras se adjunta al http::Message para que estén accesibles
112 * al programador cuando se termine de recibir el mensaje.
113 * La clase EncodedBlock no es pública.
115 if((token = tokenizer [1]) != NULL) {
116 http::Message* message = transport.getInputMessage();
117 appendExtraParameter(message, token->getStringValue());
122 string msg("ExpectedChunkSize: ");
123 msg += anna::functions::asString(chunkSize);
124 Logger::debug(msg, ANNA_FILE_LOCATION);
126 setState(transport, (chunkSize == 0) ? ClassType::ReadChunkTrailers : ClassType::ReadChunkData);