Commit b8a8191fed7463c1811ecc603513f19a06d32373
2011-09-05T01:13:46
http: add http-parser The code is under the MIT lincense Signed-off-by: Carlos Martín Nieto <carlos@cmartin.tk>
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diff --git a/CMakeLists.txt b/CMakeLists.txt
index e149cd2..8b57c5d 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -22,7 +22,10 @@ STRING(REGEX REPLACE "^.*LIBGIT2_VERSION \"[0-9]+\\.[0-9]+\\.([0-9]+).*$" "\\1"
SET(LIBGIT2_VERSION_STRING "${LIBGIT2_VERSION_MAJOR}.${LIBGIT2_VERSION_MINOR}.${LIBGIT2_VERSION_REV}")
# Find required dependencies
-INCLUDE_DIRECTORIES(src include)
+INCLUDE_DIRECTORIES(src include deps/http-parser)
+
+FILE(GLOB SRC_HTTP deps/http-parser/*.c)
+
IF (NOT WIN32)
FIND_PACKAGE(ZLIB)
ENDIF()
@@ -90,7 +93,7 @@ ELSE()
ENDIF ()
# Compile and link libgit2
-ADD_LIBRARY(git2 ${SRC} ${SRC_ZLIB})
+ADD_LIBRARY(git2 ${SRC} ${SRC_ZLIB} ${SRC_HTTP})
IF (WIN32)
TARGET_LINK_LIBRARIES(git2 ws2_32)
@@ -121,7 +124,7 @@ IF (BUILD_TESTS)
INCLUDE_DIRECTORIES(tests)
FILE(GLOB SRC_TEST tests/t??-*.c)
- ADD_EXECUTABLE(libgit2_test tests/test_main.c tests/test_lib.c tests/test_helpers.c ${SRC} ${SRC_TEST} ${SRC_ZLIB})
+ ADD_EXECUTABLE(libgit2_test tests/test_main.c tests/test_lib.c tests/test_helpers.c ${SRC} ${SRC_TEST} ${SRC_ZLIB} ${SRC_HTTP})
TARGET_LINK_LIBRARIES(libgit2_test ${CMAKE_THREAD_LIBS_INIT})
IF (WIN32)
TARGET_LINK_LIBRARIES(libgit2_test ws2_32)
diff --git a/deps/http-parser/LICENSE-MIT b/deps/http-parser/LICENSE-MIT
new file mode 100644
index 0000000..58010b3
--- /dev/null
+++ b/deps/http-parser/LICENSE-MIT
@@ -0,0 +1,23 @@
+http_parser.c is based on src/http/ngx_http_parse.c from NGINX copyright
+Igor Sysoev.
+
+Additional changes are licensed under the same terms as NGINX and
+copyright Joyent, Inc. and other Node contributors. All rights reserved.
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to
+deal in the Software without restriction, including without limitation the
+rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+sell copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+IN THE SOFTWARE.
diff --git a/deps/http-parser/http_parser.c b/deps/http-parser/http_parser.c
new file mode 100644
index 0000000..e905747
--- /dev/null
+++ b/deps/http-parser/http_parser.c
@@ -0,0 +1,1776 @@
+/* Based on src/http/ngx_http_parse.c from NGINX copyright Igor Sysoev
+ *
+ * Additional changes are licensed under the same terms as NGINX and
+ * copyright Joyent, Inc. and other Node contributors. All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+#include <http_parser.h>
+#include <assert.h>
+#include <stddef.h>
+
+
+#ifndef MIN
+# define MIN(a,b) ((a) < (b) ? (a) : (b))
+#endif
+
+
+#if HTTP_PARSER_DEBUG
+#define SET_ERRNO(e) \
+do { \
+ parser->http_errno = (e); \
+ parser->error_lineno = __LINE__; \
+} while (0)
+#else
+#define SET_ERRNO(e) \
+do { \
+ parser->http_errno = (e); \
+} while(0)
+#endif
+
+
+#define CALLBACK2(FOR) \
+do { \
+ if (settings->on_##FOR) { \
+ if (0 != settings->on_##FOR(parser)) { \
+ SET_ERRNO(HPE_CB_##FOR); \
+ return (p - data); \
+ } \
+ } \
+} while (0)
+
+
+#define MARK(FOR) \
+do { \
+ FOR##_mark = p; \
+} while (0)
+
+#define CALLBACK(FOR) \
+do { \
+ if (FOR##_mark) { \
+ if (settings->on_##FOR) { \
+ if (0 != settings->on_##FOR(parser, \
+ FOR##_mark, \
+ p - FOR##_mark)) \
+ { \
+ SET_ERRNO(HPE_CB_##FOR); \
+ return (p - data); \
+ } \
+ } \
+ FOR##_mark = NULL; \
+ } \
+} while (0)
+
+
+#define PROXY_CONNECTION "proxy-connection"
+#define CONNECTION "connection"
+#define CONTENT_LENGTH "content-length"
+#define TRANSFER_ENCODING "transfer-encoding"
+#define UPGRADE "upgrade"
+#define CHUNKED "chunked"
+#define KEEP_ALIVE "keep-alive"
+#define CLOSE "close"
+
+
+static const char *method_strings[] =
+ { "DELETE"
+ , "GET"
+ , "HEAD"
+ , "POST"
+ , "PUT"
+ , "CONNECT"
+ , "OPTIONS"
+ , "TRACE"
+ , "COPY"
+ , "LOCK"
+ , "MKCOL"
+ , "MOVE"
+ , "PROPFIND"
+ , "PROPPATCH"
+ , "UNLOCK"
+ , "REPORT"
+ , "MKACTIVITY"
+ , "CHECKOUT"
+ , "MERGE"
+ , "M-SEARCH"
+ , "NOTIFY"
+ , "SUBSCRIBE"
+ , "UNSUBSCRIBE"
+ , "PATCH"
+ };
+
+
+/* Tokens as defined by rfc 2616. Also lowercases them.
+ * token = 1*<any CHAR except CTLs or separators>
+ * separators = "(" | ")" | "<" | ">" | "@"
+ * | "," | ";" | ":" | "\" | <">
+ * | "/" | "[" | "]" | "?" | "="
+ * | "{" | "}" | SP | HT
+ */
+static const char tokens[256] = {
+/* 0 nul 1 soh 2 stx 3 etx 4 eot 5 enq 6 ack 7 bel */
+ 0, 0, 0, 0, 0, 0, 0, 0,
+/* 8 bs 9 ht 10 nl 11 vt 12 np 13 cr 14 so 15 si */
+ 0, 0, 0, 0, 0, 0, 0, 0,
+/* 16 dle 17 dc1 18 dc2 19 dc3 20 dc4 21 nak 22 syn 23 etb */
+ 0, 0, 0, 0, 0, 0, 0, 0,
+/* 24 can 25 em 26 sub 27 esc 28 fs 29 gs 30 rs 31 us */
+ 0, 0, 0, 0, 0, 0, 0, 0,
+/* 32 sp 33 ! 34 " 35 # 36 $ 37 % 38 & 39 ' */
+ ' ', '!', '"', '#', '$', '%', '&', '\'',
+/* 40 ( 41 ) 42 * 43 + 44 , 45 - 46 . 47 / */
+ 0, 0, '*', '+', 0, '-', '.', '/',
+/* 48 0 49 1 50 2 51 3 52 4 53 5 54 6 55 7 */
+ '0', '1', '2', '3', '4', '5', '6', '7',
+/* 56 8 57 9 58 : 59 ; 60 < 61 = 62 > 63 ? */
+ '8', '9', 0, 0, 0, 0, 0, 0,
+/* 64 @ 65 A 66 B 67 C 68 D 69 E 70 F 71 G */
+ 0, 'a', 'b', 'c', 'd', 'e', 'f', 'g',
+/* 72 H 73 I 74 J 75 K 76 L 77 M 78 N 79 O */
+ 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o',
+/* 80 P 81 Q 82 R 83 S 84 T 85 U 86 V 87 W */
+ 'p', 'q', 'r', 's', 't', 'u', 'v', 'w',
+/* 88 X 89 Y 90 Z 91 [ 92 \ 93 ] 94 ^ 95 _ */
+ 'x', 'y', 'z', 0, 0, 0, '^', '_',
+/* 96 ` 97 a 98 b 99 c 100 d 101 e 102 f 103 g */
+ '`', 'a', 'b', 'c', 'd', 'e', 'f', 'g',
+/* 104 h 105 i 106 j 107 k 108 l 109 m 110 n 111 o */
+ 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o',
+/* 112 p 113 q 114 r 115 s 116 t 117 u 118 v 119 w */
+ 'p', 'q', 'r', 's', 't', 'u', 'v', 'w',
+/* 120 x 121 y 122 z 123 { 124 | 125 } 126 ~ 127 del */
+ 'x', 'y', 'z', 0, '|', '}', '~', 0 };
+
+
+static const int8_t unhex[256] =
+ {-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1
+ ,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1
+ ,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1
+ , 0, 1, 2, 3, 4, 5, 6, 7, 8, 9,-1,-1,-1,-1,-1,-1
+ ,-1,10,11,12,13,14,15,-1,-1,-1,-1,-1,-1,-1,-1,-1
+ ,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1
+ ,-1,10,11,12,13,14,15,-1,-1,-1,-1,-1,-1,-1,-1,-1
+ ,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1
+ };
+
+
+static const uint8_t normal_url_char[256] = {
+/* 0 nul 1 soh 2 stx 3 etx 4 eot 5 enq 6 ack 7 bel */
+ 0, 0, 0, 0, 0, 0, 0, 0,
+/* 8 bs 9 ht 10 nl 11 vt 12 np 13 cr 14 so 15 si */
+ 0, 0, 0, 0, 0, 0, 0, 0,
+/* 16 dle 17 dc1 18 dc2 19 dc3 20 dc4 21 nak 22 syn 23 etb */
+ 0, 0, 0, 0, 0, 0, 0, 0,
+/* 24 can 25 em 26 sub 27 esc 28 fs 29 gs 30 rs 31 us */
+ 0, 0, 0, 0, 0, 0, 0, 0,
+/* 32 sp 33 ! 34 " 35 # 36 $ 37 % 38 & 39 ' */
+ 0, 1, 1, 0, 1, 1, 1, 1,
+/* 40 ( 41 ) 42 * 43 + 44 , 45 - 46 . 47 / */
+ 1, 1, 1, 1, 1, 1, 1, 1,
+/* 48 0 49 1 50 2 51 3 52 4 53 5 54 6 55 7 */
+ 1, 1, 1, 1, 1, 1, 1, 1,
+/* 56 8 57 9 58 : 59 ; 60 < 61 = 62 > 63 ? */
+ 1, 1, 1, 1, 1, 1, 1, 0,
+/* 64 @ 65 A 66 B 67 C 68 D 69 E 70 F 71 G */
+ 1, 1, 1, 1, 1, 1, 1, 1,
+/* 72 H 73 I 74 J 75 K 76 L 77 M 78 N 79 O */
+ 1, 1, 1, 1, 1, 1, 1, 1,
+/* 80 P 81 Q 82 R 83 S 84 T 85 U 86 V 87 W */
+ 1, 1, 1, 1, 1, 1, 1, 1,
+/* 88 X 89 Y 90 Z 91 [ 92 \ 93 ] 94 ^ 95 _ */
+ 1, 1, 1, 1, 1, 1, 1, 1,
+/* 96 ` 97 a 98 b 99 c 100 d 101 e 102 f 103 g */
+ 1, 1, 1, 1, 1, 1, 1, 1,
+/* 104 h 105 i 106 j 107 k 108 l 109 m 110 n 111 o */
+ 1, 1, 1, 1, 1, 1, 1, 1,
+/* 112 p 113 q 114 r 115 s 116 t 117 u 118 v 119 w */
+ 1, 1, 1, 1, 1, 1, 1, 1,
+/* 120 x 121 y 122 z 123 { 124 | 125 } 126 ~ 127 del */
+ 1, 1, 1, 1, 1, 1, 1, 0, };
+
+
+enum state
+ { s_dead = 1 /* important that this is > 0 */
+
+ , s_start_req_or_res
+ , s_res_or_resp_H
+ , s_start_res
+ , s_res_H
+ , s_res_HT
+ , s_res_HTT
+ , s_res_HTTP
+ , s_res_first_http_major
+ , s_res_http_major
+ , s_res_first_http_minor
+ , s_res_http_minor
+ , s_res_first_status_code
+ , s_res_status_code
+ , s_res_status
+ , s_res_line_almost_done
+
+ , s_start_req
+
+ , s_req_method
+ , s_req_spaces_before_url
+ , s_req_schema
+ , s_req_schema_slash
+ , s_req_schema_slash_slash
+ , s_req_host
+ , s_req_port
+ , s_req_path
+ , s_req_query_string_start
+ , s_req_query_string
+ , s_req_fragment_start
+ , s_req_fragment
+ , s_req_http_start
+ , s_req_http_H
+ , s_req_http_HT
+ , s_req_http_HTT
+ , s_req_http_HTTP
+ , s_req_first_http_major
+ , s_req_http_major
+ , s_req_first_http_minor
+ , s_req_http_minor
+ , s_req_line_almost_done
+
+ , s_header_field_start
+ , s_header_field
+ , s_header_value_start
+ , s_header_value
+ , s_header_value_lws
+
+ , s_header_almost_done
+
+ , s_chunk_size_start
+ , s_chunk_size
+ , s_chunk_parameters
+ , s_chunk_size_almost_done
+
+ , s_headers_almost_done
+ /* Important: 's_headers_almost_done' must be the last 'header' state. All
+ * states beyond this must be 'body' states. It is used for overflow
+ * checking. See the PARSING_HEADER() macro.
+ */
+
+ , s_chunk_data
+ , s_chunk_data_almost_done
+ , s_chunk_data_done
+
+ , s_body_identity
+ , s_body_identity_eof
+ };
+
+
+#define PARSING_HEADER(state) (state <= s_headers_almost_done)
+
+
+enum header_states
+ { h_general = 0
+ , h_C
+ , h_CO
+ , h_CON
+
+ , h_matching_connection
+ , h_matching_proxy_connection
+ , h_matching_content_length
+ , h_matching_transfer_encoding
+ , h_matching_upgrade
+
+ , h_connection
+ , h_content_length
+ , h_transfer_encoding
+ , h_upgrade
+
+ , h_matching_transfer_encoding_chunked
+ , h_matching_connection_keep_alive
+ , h_matching_connection_close
+
+ , h_transfer_encoding_chunked
+ , h_connection_keep_alive
+ , h_connection_close
+ };
+
+
+/* Macros for character classes; depends on strict-mode */
+#define CR '\r'
+#define LF '\n'
+#define LOWER(c) (unsigned char)(c | 0x20)
+#define TOKEN(c) (tokens[(unsigned char)c])
+#define IS_ALPHA(c) (LOWER(c) >= 'a' && LOWER(c) <= 'z')
+#define IS_NUM(c) ((c) >= '0' && (c) <= '9')
+#define IS_ALPHANUM(c) (IS_ALPHA(c) || IS_NUM(c))
+
+#if HTTP_PARSER_STRICT
+#define IS_URL_CHAR(c) (normal_url_char[(unsigned char) (c)])
+#define IS_HOST_CHAR(c) (IS_ALPHANUM(c) || (c) == '.' || (c) == '-')
+#else
+#define IS_URL_CHAR(c) \
+ (normal_url_char[(unsigned char) (c)] || ((c) & 0x80))
+#define IS_HOST_CHAR(c) \
+ (IS_ALPHANUM(c) || (c) == '.' || (c) == '-' || (c) == '_')
+#endif
+
+
+#define start_state (parser->type == HTTP_REQUEST ? s_start_req : s_start_res)
+
+
+#if HTTP_PARSER_STRICT
+# define STRICT_CHECK(cond) \
+do { \
+ if (cond) { \
+ SET_ERRNO(HPE_STRICT); \
+ goto error; \
+ } \
+} while (0)
+# define NEW_MESSAGE() (http_should_keep_alive(parser) ? start_state : s_dead)
+#else
+# define STRICT_CHECK(cond)
+# define NEW_MESSAGE() start_state
+#endif
+
+
+/* Map errno values to strings for human-readable output */
+#define HTTP_STRERROR_GEN(n, s) { "HPE_" #n, s },
+static struct {
+ const char *name;
+ const char *description;
+} http_strerror_tab[] = {
+ HTTP_ERRNO_MAP(HTTP_STRERROR_GEN)
+};
+#undef HTTP_STRERROR_GEN
+
+
+size_t http_parser_execute (http_parser *parser,
+ const http_parser_settings *settings,
+ const char *data,
+ size_t len)
+{
+ char c, ch;
+ int8_t unhex_val;
+ const char *p = data, *pe;
+ int64_t to_read;
+ enum state state;
+ enum header_states header_state;
+ uint64_t index = parser->index;
+ uint64_t nread = parser->nread;
+
+ /* We're in an error state. Don't bother doing anything. */
+ if (HTTP_PARSER_ERRNO(parser) != HPE_OK) {
+ return 0;
+ }
+
+ state = (enum state) parser->state;
+ header_state = (enum header_states) parser->header_state;
+
+ if (len == 0) {
+ switch (state) {
+ case s_body_identity_eof:
+ CALLBACK2(message_complete);
+ return 0;
+
+ case s_dead:
+ case s_start_req_or_res:
+ case s_start_res:
+ case s_start_req:
+ return 0;
+
+ default:
+ SET_ERRNO(HPE_INVALID_EOF_STATE);
+ return 1;
+ }
+ }
+
+ /* technically we could combine all of these (except for url_mark) into one
+ variable, saving stack space, but it seems more clear to have them
+ separated. */
+ const char *header_field_mark = 0;
+ const char *header_value_mark = 0;
+ const char *url_mark = 0;
+
+ if (state == s_header_field)
+ header_field_mark = data;
+ if (state == s_header_value)
+ header_value_mark = data;
+ if (state == s_req_path || state == s_req_schema || state == s_req_schema_slash
+ || state == s_req_schema_slash_slash || state == s_req_port
+ || state == s_req_query_string_start || state == s_req_query_string
+ || state == s_req_host
+ || state == s_req_fragment_start || state == s_req_fragment)
+ url_mark = data;
+
+ for (p=data, pe=data+len; p != pe; p++) {
+ ch = *p;
+
+ if (PARSING_HEADER(state)) {
+ ++nread;
+ /* Buffer overflow attack */
+ if (nread > HTTP_MAX_HEADER_SIZE) {
+ SET_ERRNO(HPE_HEADER_OVERFLOW);
+ goto error;
+ }
+ }
+
+ switch (state) {
+
+ case s_dead:
+ /* this state is used after a 'Connection: close' message
+ * the parser will error out if it reads another message
+ */
+ SET_ERRNO(HPE_CLOSED_CONNECTION);
+ goto error;
+
+ case s_start_req_or_res:
+ {
+ if (ch == CR || ch == LF)
+ break;
+ parser->flags = 0;
+ parser->content_length = -1;
+
+ CALLBACK2(message_begin);
+
+ if (ch == 'H')
+ state = s_res_or_resp_H;
+ else {
+ parser->type = HTTP_REQUEST;
+ goto start_req_method_assign;
+ }
+ break;
+ }
+
+ case s_res_or_resp_H:
+ if (ch == 'T') {
+ parser->type = HTTP_RESPONSE;
+ state = s_res_HT;
+ } else {
+ if (ch != 'E') {
+ SET_ERRNO(HPE_INVALID_CONSTANT);
+ goto error;
+ }
+
+ parser->type = HTTP_REQUEST;
+ parser->method = HTTP_HEAD;
+ index = 2;
+ state = s_req_method;
+ }
+ break;
+
+ case s_start_res:
+ {
+ parser->flags = 0;
+ parser->content_length = -1;
+
+ CALLBACK2(message_begin);
+
+ switch (ch) {
+ case 'H':
+ state = s_res_H;
+ break;
+
+ case CR:
+ case LF:
+ break;
+
+ default:
+ SET_ERRNO(HPE_INVALID_CONSTANT);
+ goto error;
+ }
+ break;
+ }
+
+ case s_res_H:
+ STRICT_CHECK(ch != 'T');
+ state = s_res_HT;
+ break;
+
+ case s_res_HT:
+ STRICT_CHECK(ch != 'T');
+ state = s_res_HTT;
+ break;
+
+ case s_res_HTT:
+ STRICT_CHECK(ch != 'P');
+ state = s_res_HTTP;
+ break;
+
+ case s_res_HTTP:
+ STRICT_CHECK(ch != '/');
+ state = s_res_first_http_major;
+ break;
+
+ case s_res_first_http_major:
+ if (ch < '1' || ch > '9') {
+ SET_ERRNO(HPE_INVALID_VERSION);
+ goto error;
+ }
+
+ parser->http_major = ch - '0';
+ state = s_res_http_major;
+ break;
+
+ /* major HTTP version or dot */
+ case s_res_http_major:
+ {
+ if (ch == '.') {
+ state = s_res_first_http_minor;
+ break;
+ }
+
+ if (!IS_NUM(ch)) {
+ SET_ERRNO(HPE_INVALID_VERSION);
+ goto error;
+ }
+
+ parser->http_major *= 10;
+ parser->http_major += ch - '0';
+
+ if (parser->http_major > 999) {
+ SET_ERRNO(HPE_INVALID_VERSION);
+ goto error;
+ }
+
+ break;
+ }
+
+ /* first digit of minor HTTP version */
+ case s_res_first_http_minor:
+ if (!IS_NUM(ch)) {
+ SET_ERRNO(HPE_INVALID_VERSION);
+ goto error;
+ }
+
+ parser->http_minor = ch - '0';
+ state = s_res_http_minor;
+ break;
+
+ /* minor HTTP version or end of request line */
+ case s_res_http_minor:
+ {
+ if (ch == ' ') {
+ state = s_res_first_status_code;
+ break;
+ }
+
+ if (!IS_NUM(ch)) {
+ SET_ERRNO(HPE_INVALID_VERSION);
+ goto error;
+ }
+
+ parser->http_minor *= 10;
+ parser->http_minor += ch - '0';
+
+ if (parser->http_minor > 999) {
+ SET_ERRNO(HPE_INVALID_VERSION);
+ goto error;
+ }
+
+ break;
+ }
+
+ case s_res_first_status_code:
+ {
+ if (!IS_NUM(ch)) {
+ if (ch == ' ') {
+ break;
+ }
+
+ SET_ERRNO(HPE_INVALID_STATUS);
+ goto error;
+ }
+ parser->status_code = ch - '0';
+ state = s_res_status_code;
+ break;
+ }
+
+ case s_res_status_code:
+ {
+ if (!IS_NUM(ch)) {
+ switch (ch) {
+ case ' ':
+ state = s_res_status;
+ break;
+ case CR:
+ state = s_res_line_almost_done;
+ break;
+ case LF:
+ state = s_header_field_start;
+ break;
+ default:
+ SET_ERRNO(HPE_INVALID_STATUS);
+ goto error;
+ }
+ break;
+ }
+
+ parser->status_code *= 10;
+ parser->status_code += ch - '0';
+
+ if (parser->status_code > 999) {
+ SET_ERRNO(HPE_INVALID_STATUS);
+ goto error;
+ }
+
+ break;
+ }
+
+ case s_res_status:
+ /* the human readable status. e.g. "NOT FOUND"
+ * we are not humans so just ignore this */
+ if (ch == CR) {
+ state = s_res_line_almost_done;
+ break;
+ }
+
+ if (ch == LF) {
+ state = s_header_field_start;
+ break;
+ }
+ break;
+
+ case s_res_line_almost_done:
+ STRICT_CHECK(ch != LF);
+ state = s_header_field_start;
+ break;
+
+ case s_start_req:
+ {
+ if (ch == CR || ch == LF)
+ break;
+ parser->flags = 0;
+ parser->content_length = -1;
+
+ CALLBACK2(message_begin);
+
+ if (!IS_ALPHA(ch)) {
+ SET_ERRNO(HPE_INVALID_METHOD);
+ goto error;
+ }
+
+ start_req_method_assign:
+ parser->method = (enum http_method) 0;
+ index = 1;
+ switch (ch) {
+ case 'C': parser->method = HTTP_CONNECT; /* or COPY, CHECKOUT */ break;
+ case 'D': parser->method = HTTP_DELETE; break;
+ case 'G': parser->method = HTTP_GET; break;
+ case 'H': parser->method = HTTP_HEAD; break;
+ case 'L': parser->method = HTTP_LOCK; break;
+ case 'M': parser->method = HTTP_MKCOL; /* or MOVE, MKACTIVITY, MERGE, M-SEARCH */ break;
+ case 'N': parser->method = HTTP_NOTIFY; break;
+ case 'O': parser->method = HTTP_OPTIONS; break;
+ case 'P': parser->method = HTTP_POST;
+ /* or PROPFIND or PROPPATCH or PUT or PATCH */
+ break;
+ case 'R': parser->method = HTTP_REPORT; break;
+ case 'S': parser->method = HTTP_SUBSCRIBE; break;
+ case 'T': parser->method = HTTP_TRACE; break;
+ case 'U': parser->method = HTTP_UNLOCK; /* or UNSUBSCRIBE */ break;
+ default:
+ SET_ERRNO(HPE_INVALID_METHOD);
+ goto error;
+ }
+ state = s_req_method;
+ break;
+ }
+
+ case s_req_method:
+ {
+ if (ch == '\0') {
+ SET_ERRNO(HPE_INVALID_METHOD);
+ goto error;
+ }
+
+ const char *matcher = method_strings[parser->method];
+ if (ch == ' ' && matcher[index] == '\0') {
+ state = s_req_spaces_before_url;
+ } else if (ch == matcher[index]) {
+ ; /* nada */
+ } else if (parser->method == HTTP_CONNECT) {
+ if (index == 1 && ch == 'H') {
+ parser->method = HTTP_CHECKOUT;
+ } else if (index == 2 && ch == 'P') {
+ parser->method = HTTP_COPY;
+ } else {
+ goto error;
+ }
+ } else if (parser->method == HTTP_MKCOL) {
+ if (index == 1 && ch == 'O') {
+ parser->method = HTTP_MOVE;
+ } else if (index == 1 && ch == 'E') {
+ parser->method = HTTP_MERGE;
+ } else if (index == 1 && ch == '-') {
+ parser->method = HTTP_MSEARCH;
+ } else if (index == 2 && ch == 'A') {
+ parser->method = HTTP_MKACTIVITY;
+ } else {
+ goto error;
+ }
+ } else if (index == 1 && parser->method == HTTP_POST) {
+ if (ch == 'R') {
+ parser->method = HTTP_PROPFIND; /* or HTTP_PROPPATCH */
+ } else if (ch == 'U') {
+ parser->method = HTTP_PUT;
+ } else if (ch == 'A') {
+ parser->method = HTTP_PATCH;
+ } else {
+ goto error;
+ }
+ } else if (index == 2 && parser->method == HTTP_UNLOCK && ch == 'S') {
+ parser->method = HTTP_UNSUBSCRIBE;
+ } else if (index == 4 && parser->method == HTTP_PROPFIND && ch == 'P') {
+ parser->method = HTTP_PROPPATCH;
+ } else {
+ SET_ERRNO(HPE_INVALID_METHOD);
+ goto error;
+ }
+
+ ++index;
+ break;
+ }
+ case s_req_spaces_before_url:
+ {
+ if (ch == ' ') break;
+
+ if (ch == '/' || ch == '*') {
+ MARK(url);
+ state = s_req_path;
+ break;
+ }
+
+ /* Proxied requests are followed by scheme of an absolute URI (alpha).
+ * CONNECT is followed by a hostname, which begins with alphanum.
+ * All other methods are followed by '/' or '*' (handled above).
+ */
+ if (IS_ALPHA(ch) || (parser->method == HTTP_CONNECT && IS_NUM(ch))) {
+ MARK(url);
+ state = (parser->method == HTTP_CONNECT) ? s_req_host : s_req_schema;
+ break;
+ }
+
+ SET_ERRNO(HPE_INVALID_URL);
+ goto error;
+ }
+
+ case s_req_schema:
+ {
+ if (IS_ALPHA(ch)) break;
+
+ if (ch == ':') {
+ state = s_req_schema_slash;
+ break;
+ }
+
+ SET_ERRNO(HPE_INVALID_URL);
+ goto error;
+ }
+
+ case s_req_schema_slash:
+ STRICT_CHECK(ch != '/');
+ state = s_req_schema_slash_slash;
+ break;
+
+ case s_req_schema_slash_slash:
+ STRICT_CHECK(ch != '/');
+ state = s_req_host;
+ break;
+
+ case s_req_host:
+ {
+ if (IS_HOST_CHAR(ch)) break;
+ switch (ch) {
+ case ':':
+ state = s_req_port;
+ break;
+ case '/':
+ state = s_req_path;
+ break;
+ case ' ':
+ /* The request line looks like:
+ * "GET http://foo.bar.com HTTP/1.1"
+ * That is, there is no path.
+ */
+ CALLBACK(url);
+ state = s_req_http_start;
+ break;
+ case '?':
+ state = s_req_query_string_start;
+ break;
+ default:
+ SET_ERRNO(HPE_INVALID_HOST);
+ goto error;
+ }
+ break;
+ }
+
+ case s_req_port:
+ {
+ if (IS_NUM(ch)) break;
+ switch (ch) {
+ case '/':
+ state = s_req_path;
+ break;
+ case ' ':
+ /* The request line looks like:
+ * "GET http://foo.bar.com:1234 HTTP/1.1"
+ * That is, there is no path.
+ */
+ CALLBACK(url);
+ state = s_req_http_start;
+ break;
+ case '?':
+ state = s_req_query_string_start;
+ break;
+ default:
+ SET_ERRNO(HPE_INVALID_PORT);
+ goto error;
+ }
+ break;
+ }
+
+ case s_req_path:
+ {
+ if (IS_URL_CHAR(ch)) break;
+
+ switch (ch) {
+ case ' ':
+ CALLBACK(url);
+ state = s_req_http_start;
+ break;
+ case CR:
+ CALLBACK(url);
+ parser->http_major = 0;
+ parser->http_minor = 9;
+ state = s_req_line_almost_done;
+ break;
+ case LF:
+ CALLBACK(url);
+ parser->http_major = 0;
+ parser->http_minor = 9;
+ state = s_header_field_start;
+ break;
+ case '?':
+ state = s_req_query_string_start;
+ break;
+ case '#':
+ state = s_req_fragment_start;
+ break;
+ default:
+ SET_ERRNO(HPE_INVALID_PATH);
+ goto error;
+ }
+ break;
+ }
+
+ case s_req_query_string_start:
+ {
+ if (IS_URL_CHAR(ch)) {
+ state = s_req_query_string;
+ break;
+ }
+
+ switch (ch) {
+ case '?':
+ break; /* XXX ignore extra '?' ... is this right? */
+ case ' ':
+ CALLBACK(url);
+ state = s_req_http_start;
+ break;
+ case CR:
+ CALLBACK(url);
+ parser->http_major = 0;
+ parser->http_minor = 9;
+ state = s_req_line_almost_done;
+ break;
+ case LF:
+ CALLBACK(url);
+ parser->http_major = 0;
+ parser->http_minor = 9;
+ state = s_header_field_start;
+ break;
+ case '#':
+ state = s_req_fragment_start;
+ break;
+ default:
+ SET_ERRNO(HPE_INVALID_QUERY_STRING);
+ goto error;
+ }
+ break;
+ }
+
+ case s_req_query_string:
+ {
+ if (IS_URL_CHAR(ch)) break;
+
+ switch (ch) {
+ case '?':
+ /* allow extra '?' in query string */
+ break;
+ case ' ':
+ CALLBACK(url);
+ state = s_req_http_start;
+ break;
+ case CR:
+ CALLBACK(url);
+ parser->http_major = 0;
+ parser->http_minor = 9;
+ state = s_req_line_almost_done;
+ break;
+ case LF:
+ CALLBACK(url);
+ parser->http_major = 0;
+ parser->http_minor = 9;
+ state = s_header_field_start;
+ break;
+ case '#':
+ state = s_req_fragment_start;
+ break;
+ default:
+ SET_ERRNO(HPE_INVALID_QUERY_STRING);
+ goto error;
+ }
+ break;
+ }
+
+ case s_req_fragment_start:
+ {
+ if (IS_URL_CHAR(ch)) {
+ state = s_req_fragment;
+ break;
+ }
+
+ switch (ch) {
+ case ' ':
+ CALLBACK(url);
+ state = s_req_http_start;
+ break;
+ case CR:
+ CALLBACK(url);
+ parser->http_major = 0;
+ parser->http_minor = 9;
+ state = s_req_line_almost_done;
+ break;
+ case LF:
+ CALLBACK(url);
+ parser->http_major = 0;
+ parser->http_minor = 9;
+ state = s_header_field_start;
+ break;
+ case '?':
+ state = s_req_fragment;
+ break;
+ case '#':
+ break;
+ default:
+ SET_ERRNO(HPE_INVALID_FRAGMENT);
+ goto error;
+ }
+ break;
+ }
+
+ case s_req_fragment:
+ {
+ if (IS_URL_CHAR(ch)) break;
+
+ switch (ch) {
+ case ' ':
+ CALLBACK(url);
+ state = s_req_http_start;
+ break;
+ case CR:
+ CALLBACK(url);
+ parser->http_major = 0;
+ parser->http_minor = 9;
+ state = s_req_line_almost_done;
+ break;
+ case LF:
+ CALLBACK(url);
+ parser->http_major = 0;
+ parser->http_minor = 9;
+ state = s_header_field_start;
+ break;
+ case '?':
+ case '#':
+ break;
+ default:
+ SET_ERRNO(HPE_INVALID_FRAGMENT);
+ goto error;
+ }
+ break;
+ }
+
+ case s_req_http_start:
+ switch (ch) {
+ case 'H':
+ state = s_req_http_H;
+ break;
+ case ' ':
+ break;
+ default:
+ SET_ERRNO(HPE_INVALID_CONSTANT);
+ goto error;
+ }
+ break;
+
+ case s_req_http_H:
+ STRICT_CHECK(ch != 'T');
+ state = s_req_http_HT;
+ break;
+
+ case s_req_http_HT:
+ STRICT_CHECK(ch != 'T');
+ state = s_req_http_HTT;
+ break;
+
+ case s_req_http_HTT:
+ STRICT_CHECK(ch != 'P');
+ state = s_req_http_HTTP;
+ break;
+
+ case s_req_http_HTTP:
+ STRICT_CHECK(ch != '/');
+ state = s_req_first_http_major;
+ break;
+
+ /* first digit of major HTTP version */
+ case s_req_first_http_major:
+ if (ch < '1' || ch > '9') {
+ SET_ERRNO(HPE_INVALID_VERSION);
+ goto error;
+ }
+
+ parser->http_major = ch - '0';
+ state = s_req_http_major;
+ break;
+
+ /* major HTTP version or dot */
+ case s_req_http_major:
+ {
+ if (ch == '.') {
+ state = s_req_first_http_minor;
+ break;
+ }
+
+ if (!IS_NUM(ch)) {
+ SET_ERRNO(HPE_INVALID_VERSION);
+ goto error;
+ }
+
+ parser->http_major *= 10;
+ parser->http_major += ch - '0';
+
+ if (parser->http_major > 999) {
+ SET_ERRNO(HPE_INVALID_VERSION);
+ goto error;
+ }
+
+ break;
+ }
+
+ /* first digit of minor HTTP version */
+ case s_req_first_http_minor:
+ if (!IS_NUM(ch)) {
+ SET_ERRNO(HPE_INVALID_VERSION);
+ goto error;
+ }
+
+ parser->http_minor = ch - '0';
+ state = s_req_http_minor;
+ break;
+
+ /* minor HTTP version or end of request line */
+ case s_req_http_minor:
+ {
+ if (ch == CR) {
+ state = s_req_line_almost_done;
+ break;
+ }
+
+ if (ch == LF) {
+ state = s_header_field_start;
+ break;
+ }
+
+ /* XXX allow spaces after digit? */
+
+ if (!IS_NUM(ch)) {
+ SET_ERRNO(HPE_INVALID_VERSION);
+ goto error;
+ }
+
+ parser->http_minor *= 10;
+ parser->http_minor += ch - '0';
+
+ if (parser->http_minor > 999) {
+ SET_ERRNO(HPE_INVALID_VERSION);
+ goto error;
+ }
+
+ break;
+ }
+
+ /* end of request line */
+ case s_req_line_almost_done:
+ {
+ if (ch != LF) {
+ SET_ERRNO(HPE_LF_EXPECTED);
+ goto error;
+ }
+
+ state = s_header_field_start;
+ break;
+ }
+
+ case s_header_field_start:
+ header_field_start:
+ {
+ if (ch == CR) {
+ state = s_headers_almost_done;
+ break;
+ }
+
+ if (ch == LF) {
+ /* they might be just sending \n instead of \r\n so this would be
+ * the second \n to denote the end of headers*/
+ state = s_headers_almost_done;
+ goto headers_almost_done;
+ }
+
+ c = TOKEN(ch);
+
+ if (!c) {
+ SET_ERRNO(HPE_INVALID_HEADER_TOKEN);
+ goto error;
+ }
+
+ MARK(header_field);
+
+ index = 0;
+ state = s_header_field;
+
+ switch (c) {
+ case 'c':
+ header_state = h_C;
+ break;
+
+ case 'p':
+ header_state = h_matching_proxy_connection;
+ break;
+
+ case 't':
+ header_state = h_matching_transfer_encoding;
+ break;
+
+ case 'u':
+ header_state = h_matching_upgrade;
+ break;
+
+ default:
+ header_state = h_general;
+ break;
+ }
+ break;
+ }
+
+ case s_header_field:
+ {
+ c = TOKEN(ch);
+
+ if (c) {
+ switch (header_state) {
+ case h_general:
+ break;
+
+ case h_C:
+ index++;
+ header_state = (c == 'o' ? h_CO : h_general);
+ break;
+
+ case h_CO:
+ index++;
+ header_state = (c == 'n' ? h_CON : h_general);
+ break;
+
+ case h_CON:
+ index++;
+ switch (c) {
+ case 'n':
+ header_state = h_matching_connection;
+ break;
+ case 't':
+ header_state = h_matching_content_length;
+ break;
+ default:
+ header_state = h_general;
+ break;
+ }
+ break;
+
+ /* connection */
+
+ case h_matching_connection:
+ index++;
+ if (index > sizeof(CONNECTION)-1
+ || c != CONNECTION[index]) {
+ header_state = h_general;
+ } else if (index == sizeof(CONNECTION)-2) {
+ header_state = h_connection;
+ }
+ break;
+
+ /* proxy-connection */
+
+ case h_matching_proxy_connection:
+ index++;
+ if (index > sizeof(PROXY_CONNECTION)-1
+ || c != PROXY_CONNECTION[index]) {
+ header_state = h_general;
+ } else if (index == sizeof(PROXY_CONNECTION)-2) {
+ header_state = h_connection;
+ }
+ break;
+
+ /* content-length */
+
+ case h_matching_content_length:
+ index++;
+ if (index > sizeof(CONTENT_LENGTH)-1
+ || c != CONTENT_LENGTH[index]) {
+ header_state = h_general;
+ } else if (index == sizeof(CONTENT_LENGTH)-2) {
+ header_state = h_content_length;
+ }
+ break;
+
+ /* transfer-encoding */
+
+ case h_matching_transfer_encoding:
+ index++;
+ if (index > sizeof(TRANSFER_ENCODING)-1
+ || c != TRANSFER_ENCODING[index]) {
+ header_state = h_general;
+ } else if (index == sizeof(TRANSFER_ENCODING)-2) {
+ header_state = h_transfer_encoding;
+ }
+ break;
+
+ /* upgrade */
+
+ case h_matching_upgrade:
+ index++;
+ if (index > sizeof(UPGRADE)-1
+ || c != UPGRADE[index]) {
+ header_state = h_general;
+ } else if (index == sizeof(UPGRADE)-2) {
+ header_state = h_upgrade;
+ }
+ break;
+
+ case h_connection:
+ case h_content_length:
+ case h_transfer_encoding:
+ case h_upgrade:
+ if (ch != ' ') header_state = h_general;
+ break;
+
+ default:
+ assert(0 && "Unknown header_state");
+ break;
+ }
+ break;
+ }
+
+ if (ch == ':') {
+ CALLBACK(header_field);
+ state = s_header_value_start;
+ break;
+ }
+
+ if (ch == CR) {
+ state = s_header_almost_done;
+ CALLBACK(header_field);
+ break;
+ }
+
+ if (ch == LF) {
+ CALLBACK(header_field);
+ state = s_header_field_start;
+ break;
+ }
+
+ SET_ERRNO(HPE_INVALID_HEADER_TOKEN);
+ goto error;
+ }
+
+ case s_header_value_start:
+ {
+ if (ch == ' ' || ch == '\t') break;
+
+ MARK(header_value);
+
+ state = s_header_value;
+ index = 0;
+
+ if (ch == CR) {
+ CALLBACK(header_value);
+ header_state = h_general;
+ state = s_header_almost_done;
+ break;
+ }
+
+ if (ch == LF) {
+ CALLBACK(header_value);
+ state = s_header_field_start;
+ break;
+ }
+
+ c = LOWER(ch);
+
+ switch (header_state) {
+ case h_upgrade:
+ parser->flags |= F_UPGRADE;
+ header_state = h_general;
+ break;
+
+ case h_transfer_encoding:
+ /* looking for 'Transfer-Encoding: chunked' */
+ if ('c' == c) {
+ header_state = h_matching_transfer_encoding_chunked;
+ } else {
+ header_state = h_general;
+ }
+ break;
+
+ case h_content_length:
+ if (!IS_NUM(ch)) {
+ SET_ERRNO(HPE_INVALID_CONTENT_LENGTH);
+ goto error;
+ }
+
+ parser->content_length = ch - '0';
+ break;
+
+ case h_connection:
+ /* looking for 'Connection: keep-alive' */
+ if (c == 'k') {
+ header_state = h_matching_connection_keep_alive;
+ /* looking for 'Connection: close' */
+ } else if (c == 'c') {
+ header_state = h_matching_connection_close;
+ } else {
+ header_state = h_general;
+ }
+ break;
+
+ default:
+ header_state = h_general;
+ break;
+ }
+ break;
+ }
+
+ case s_header_value:
+ {
+
+ if (ch == CR) {
+ CALLBACK(header_value);
+ state = s_header_almost_done;
+ break;
+ }
+
+ if (ch == LF) {
+ CALLBACK(header_value);
+ goto header_almost_done;
+ }
+
+ c = LOWER(ch);
+
+ switch (header_state) {
+ case h_general:
+ break;
+
+ case h_connection:
+ case h_transfer_encoding:
+ assert(0 && "Shouldn't get here.");
+ break;
+
+ case h_content_length:
+ if (ch == ' ') break;
+ if (!IS_NUM(ch)) {
+ SET_ERRNO(HPE_INVALID_CONTENT_LENGTH);
+ goto error;
+ }
+
+ parser->content_length *= 10;
+ parser->content_length += ch - '0';
+ break;
+
+ /* Transfer-Encoding: chunked */
+ case h_matching_transfer_encoding_chunked:
+ index++;
+ if (index > sizeof(CHUNKED)-1
+ || c != CHUNKED[index]) {
+ header_state = h_general;
+ } else if (index == sizeof(CHUNKED)-2) {
+ header_state = h_transfer_encoding_chunked;
+ }
+ break;
+
+ /* looking for 'Connection: keep-alive' */
+ case h_matching_connection_keep_alive:
+ index++;
+ if (index > sizeof(KEEP_ALIVE)-1
+ || c != KEEP_ALIVE[index]) {
+ header_state = h_general;
+ } else if (index == sizeof(KEEP_ALIVE)-2) {
+ header_state = h_connection_keep_alive;
+ }
+ break;
+
+ /* looking for 'Connection: close' */
+ case h_matching_connection_close:
+ index++;
+ if (index > sizeof(CLOSE)-1 || c != CLOSE[index]) {
+ header_state = h_general;
+ } else if (index == sizeof(CLOSE)-2) {
+ header_state = h_connection_close;
+ }
+ break;
+
+ case h_transfer_encoding_chunked:
+ case h_connection_keep_alive:
+ case h_connection_close:
+ if (ch != ' ') header_state = h_general;
+ break;
+
+ default:
+ state = s_header_value;
+ header_state = h_general;
+ break;
+ }
+ break;
+ }
+
+ case s_header_almost_done:
+ header_almost_done:
+ {
+ STRICT_CHECK(ch != LF);
+
+ state = s_header_value_lws;
+
+ switch (header_state) {
+ case h_connection_keep_alive:
+ parser->flags |= F_CONNECTION_KEEP_ALIVE;
+ break;
+ case h_connection_close:
+ parser->flags |= F_CONNECTION_CLOSE;
+ break;
+ case h_transfer_encoding_chunked:
+ parser->flags |= F_CHUNKED;
+ break;
+ default:
+ break;
+ }
+ break;
+ }
+
+ case s_header_value_lws:
+ {
+ if (ch == ' ' || ch == '\t')
+ state = s_header_value_start;
+ else
+ {
+ state = s_header_field_start;
+ goto header_field_start;
+ }
+ break;
+ }
+
+ case s_headers_almost_done:
+ headers_almost_done:
+ {
+ STRICT_CHECK(ch != LF);
+
+ if (parser->flags & F_TRAILING) {
+ /* End of a chunked request */
+ CALLBACK2(message_complete);
+ state = NEW_MESSAGE();
+ break;
+ }
+
+ nread = 0;
+
+ if (parser->flags & F_UPGRADE || parser->method == HTTP_CONNECT) {
+ parser->upgrade = 1;
+ }
+
+ /* Here we call the headers_complete callback. This is somewhat
+ * different than other callbacks because if the user returns 1, we
+ * will interpret that as saying that this message has no body. This
+ * is needed for the annoying case of recieving a response to a HEAD
+ * request.
+ */
+ if (settings->on_headers_complete) {
+ switch (settings->on_headers_complete(parser)) {
+ case 0:
+ break;
+
+ case 1:
+ parser->flags |= F_SKIPBODY;
+ break;
+
+ default:
+ parser->state = state;
+ SET_ERRNO(HPE_CB_headers_complete);
+ return p - data; /* Error */
+ }
+ }
+
+ /* Exit, the rest of the connect is in a different protocol. */
+ if (parser->upgrade) {
+ CALLBACK2(message_complete);
+ return (p - data) + 1;
+ }
+
+ if (parser->flags & F_SKIPBODY) {
+ CALLBACK2(message_complete);
+ state = NEW_MESSAGE();
+ } else if (parser->flags & F_CHUNKED) {
+ /* chunked encoding - ignore Content-Length header */
+ state = s_chunk_size_start;
+ } else {
+ if (parser->content_length == 0) {
+ /* Content-Length header given but zero: Content-Length: 0\r\n */
+ CALLBACK2(message_complete);
+ state = NEW_MESSAGE();
+ } else if (parser->content_length > 0) {
+ /* Content-Length header given and non-zero */
+ state = s_body_identity;
+ } else {
+ if (parser->type == HTTP_REQUEST || http_should_keep_alive(parser)) {
+ /* Assume content-length 0 - read the next */
+ CALLBACK2(message_complete);
+ state = NEW_MESSAGE();
+ } else {
+ /* Read body until EOF */
+ state = s_body_identity_eof;
+ }
+ }
+ }
+
+ break;
+ }
+
+ case s_body_identity:
+ to_read = MIN(pe - p, (int64_t)parser->content_length);
+ if (to_read > 0) {
+ if (settings->on_body) settings->on_body(parser, p, to_read);
+ p += to_read - 1;
+ parser->content_length -= to_read;
+ if (parser->content_length == 0) {
+ CALLBACK2(message_complete);
+ state = NEW_MESSAGE();
+ }
+ }
+ break;
+
+ /* read until EOF */
+ case s_body_identity_eof:
+ to_read = pe - p;
+ if (to_read > 0) {
+ if (settings->on_body) settings->on_body(parser, p, to_read);
+ p += to_read - 1;
+ }
+ break;
+
+ case s_chunk_size_start:
+ {
+ assert(nread == 1);
+ assert(parser->flags & F_CHUNKED);
+
+ unhex_val = unhex[(unsigned char)ch];
+ if (unhex_val == -1) {
+ SET_ERRNO(HPE_INVALID_CHUNK_SIZE);
+ goto error;
+ }
+
+ parser->content_length = unhex_val;
+ state = s_chunk_size;
+ break;
+ }
+
+ case s_chunk_size:
+ {
+ assert(parser->flags & F_CHUNKED);
+
+ if (ch == CR) {
+ state = s_chunk_size_almost_done;
+ break;
+ }
+
+ unhex_val = unhex[(unsigned char)ch];
+
+ if (unhex_val == -1) {
+ if (ch == ';' || ch == ' ') {
+ state = s_chunk_parameters;
+ break;
+ }
+
+ SET_ERRNO(HPE_INVALID_CHUNK_SIZE);
+ goto error;
+ }
+
+ parser->content_length *= 16;
+ parser->content_length += unhex_val;
+ break;
+ }
+
+ case s_chunk_parameters:
+ {
+ assert(parser->flags & F_CHUNKED);
+ /* just ignore this shit. TODO check for overflow */
+ if (ch == CR) {
+ state = s_chunk_size_almost_done;
+ break;
+ }
+ break;
+ }
+
+ case s_chunk_size_almost_done:
+ {
+ assert(parser->flags & F_CHUNKED);
+ STRICT_CHECK(ch != LF);
+
+ nread = 0;
+
+ if (parser->content_length == 0) {
+ parser->flags |= F_TRAILING;
+ state = s_header_field_start;
+ } else {
+ state = s_chunk_data;
+ }
+ break;
+ }
+
+ case s_chunk_data:
+ {
+ assert(parser->flags & F_CHUNKED);
+
+ to_read = MIN(pe - p, (int64_t)(parser->content_length));
+
+ if (to_read > 0) {
+ if (settings->on_body) settings->on_body(parser, p, to_read);
+ p += to_read - 1;
+ }
+
+ if (to_read == parser->content_length) {
+ state = s_chunk_data_almost_done;
+ }
+
+ parser->content_length -= to_read;
+ break;
+ }
+
+ case s_chunk_data_almost_done:
+ assert(parser->flags & F_CHUNKED);
+ STRICT_CHECK(ch != CR);
+ state = s_chunk_data_done;
+ break;
+
+ case s_chunk_data_done:
+ assert(parser->flags & F_CHUNKED);
+ STRICT_CHECK(ch != LF);
+ state = s_chunk_size_start;
+ break;
+
+ default:
+ assert(0 && "unhandled state");
+ SET_ERRNO(HPE_INVALID_INTERNAL_STATE);
+ goto error;
+ }
+ }
+
+ CALLBACK(header_field);
+ CALLBACK(header_value);
+ CALLBACK(url);
+
+ parser->state = state;
+ parser->header_state = header_state;
+ parser->index = index;
+ parser->nread = nread;
+
+ return len;
+
+error:
+ if (HTTP_PARSER_ERRNO(parser) == HPE_OK) {
+ SET_ERRNO(HPE_UNKNOWN);
+ }
+
+ return (p - data);
+}
+
+
+int
+http_should_keep_alive (http_parser *parser)
+{
+ if (parser->http_major > 0 && parser->http_minor > 0) {
+ /* HTTP/1.1 */
+ if (parser->flags & F_CONNECTION_CLOSE) {
+ return 0;
+ } else {
+ return 1;
+ }
+ } else {
+ /* HTTP/1.0 or earlier */
+ if (parser->flags & F_CONNECTION_KEEP_ALIVE) {
+ return 1;
+ } else {
+ return 0;
+ }
+ }
+}
+
+
+const char * http_method_str (enum http_method m)
+{
+ return method_strings[m];
+}
+
+
+void
+http_parser_init (http_parser *parser, enum http_parser_type t)
+{
+ parser->type = t;
+ parser->state = (t == HTTP_REQUEST ? s_start_req : (t == HTTP_RESPONSE ? s_start_res : s_start_req_or_res));
+ parser->nread = 0;
+ parser->upgrade = 0;
+ parser->flags = 0;
+ parser->method = 0;
+ parser->http_errno = 0;
+}
+
+const char *
+http_errno_name(enum http_errno err) {
+ assert(err < (sizeof(http_strerror_tab)/sizeof(http_strerror_tab[0])));
+ return http_strerror_tab[err].name;
+}
+
+const char *
+http_errno_description(enum http_errno err) {
+ assert(err < (sizeof(http_strerror_tab)/sizeof(http_strerror_tab[0])));
+ return http_strerror_tab[err].description;
+}
diff --git a/deps/http-parser/http_parser.h b/deps/http-parser/http_parser.h
new file mode 100644
index 0000000..76a61f2
--- /dev/null
+++ b/deps/http-parser/http_parser.h
@@ -0,0 +1,276 @@
+/* Copyright Joyent, Inc. and other Node contributors. All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+#ifndef http_parser_h
+#define http_parser_h
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define HTTP_PARSER_VERSION_MAJOR 1
+#define HTTP_PARSER_VERSION_MINOR 0
+
+#include <sys/types.h>
+#if defined(_WIN32) && !defined(__MINGW32__) && !defined(_MSC_VER)
+typedef __int8 int8_t;
+typedef unsigned __int8 uint8_t;
+typedef __int16 int16_t;
+typedef unsigned __int16 uint16_t;
+typedef __int32 int32_t;
+typedef unsigned __int32 uint32_t;
+typedef __int64 int64_t;
+typedef unsigned __int64 uint64_t;
+
+typedef unsigned int size_t;
+typedef int ssize_t;
+#else
+#include <stdint.h>
+#endif
+
+/* Compile with -DHTTP_PARSER_STRICT=0 to make less checks, but run
+ * faster
+ */
+#ifndef HTTP_PARSER_STRICT
+# define HTTP_PARSER_STRICT 1
+#endif
+
+/* Compile with -DHTTP_PARSER_DEBUG=1 to add extra debugging information to
+ * the error reporting facility.
+ */
+#ifndef HTTP_PARSER_DEBUG
+# define HTTP_PARSER_DEBUG 0
+#endif
+
+
+/* Maximium header size allowed */
+#define HTTP_MAX_HEADER_SIZE (80*1024)
+
+
+typedef struct http_parser http_parser;
+typedef struct http_parser_settings http_parser_settings;
+typedef struct http_parser_result http_parser_result;
+
+
+/* Callbacks should return non-zero to indicate an error. The parser will
+ * then halt execution.
+ *
+ * The one exception is on_headers_complete. In a HTTP_RESPONSE parser
+ * returning '1' from on_headers_complete will tell the parser that it
+ * should not expect a body. This is used when receiving a response to a
+ * HEAD request which may contain 'Content-Length' or 'Transfer-Encoding:
+ * chunked' headers that indicate the presence of a body.
+ *
+ * http_data_cb does not return data chunks. It will be call arbitrarally
+ * many times for each string. E.G. you might get 10 callbacks for "on_path"
+ * each providing just a few characters more data.
+ */
+typedef int (*http_data_cb) (http_parser*, const char *at, size_t length);
+typedef int (*http_cb) (http_parser*);
+
+
+/* Request Methods */
+enum http_method
+ { HTTP_DELETE = 0
+ , HTTP_GET
+ , HTTP_HEAD
+ , HTTP_POST
+ , HTTP_PUT
+ /* pathological */
+ , HTTP_CONNECT
+ , HTTP_OPTIONS
+ , HTTP_TRACE
+ /* webdav */
+ , HTTP_COPY
+ , HTTP_LOCK
+ , HTTP_MKCOL
+ , HTTP_MOVE
+ , HTTP_PROPFIND
+ , HTTP_PROPPATCH
+ , HTTP_UNLOCK
+ /* subversion */
+ , HTTP_REPORT
+ , HTTP_MKACTIVITY
+ , HTTP_CHECKOUT
+ , HTTP_MERGE
+ /* upnp */
+ , HTTP_MSEARCH
+ , HTTP_NOTIFY
+ , HTTP_SUBSCRIBE
+ , HTTP_UNSUBSCRIBE
+ /* RFC-5789 */
+ , HTTP_PATCH
+ };
+
+
+enum http_parser_type { HTTP_REQUEST, HTTP_RESPONSE, HTTP_BOTH };
+
+
+/* Flag values for http_parser.flags field */
+enum flags
+ { F_CHUNKED = 1 << 0
+ , F_CONNECTION_KEEP_ALIVE = 1 << 1
+ , F_CONNECTION_CLOSE = 1 << 2
+ , F_TRAILING = 1 << 3
+ , F_UPGRADE = 1 << 4
+ , F_SKIPBODY = 1 << 5
+ };
+
+
+/* Map for errno-related constants
+ *
+ * The provided argument should be a macro that takes 2 arguments.
+ */
+#define HTTP_ERRNO_MAP(XX) \
+ /* No error */ \
+ XX(OK, "success") \
+ \
+ /* Callback-related errors */ \
+ XX(CB_message_begin, "the on_message_begin callback failed") \
+ XX(CB_path, "the on_path callback failed") \
+ XX(CB_query_string, "the on_query_string callback failed") \
+ XX(CB_url, "the on_url callback failed") \
+ XX(CB_fragment, "the on_fragment callback failed") \
+ XX(CB_header_field, "the on_header_field callback failed") \
+ XX(CB_header_value, "the on_header_value callback failed") \
+ XX(CB_headers_complete, "the on_headers_complete callback failed") \
+ XX(CB_body, "the on_body callback failed") \
+ XX(CB_message_complete, "the on_message_complete callback failed") \
+ \
+ /* Parsing-related errors */ \
+ XX(INVALID_EOF_STATE, "stream ended at an unexpected time") \
+ XX(HEADER_OVERFLOW, \
+ "too many header bytes seen; overflow detected") \
+ XX(CLOSED_CONNECTION, \
+ "data received after completed connection: close message") \
+ XX(INVALID_VERSION, "invalid HTTP version") \
+ XX(INVALID_STATUS, "invalid HTTP status code") \
+ XX(INVALID_METHOD, "invalid HTTP method") \
+ XX(INVALID_URL, "invalid URL") \
+ XX(INVALID_HOST, "invalid host") \
+ XX(INVALID_PORT, "invalid port") \
+ XX(INVALID_PATH, "invalid path") \
+ XX(INVALID_QUERY_STRING, "invalid query string") \
+ XX(INVALID_FRAGMENT, "invalid fragment") \
+ XX(LF_EXPECTED, "LF character expected") \
+ XX(INVALID_HEADER_TOKEN, "invalid character in header") \
+ XX(INVALID_CONTENT_LENGTH, \
+ "invalid character in content-length header") \
+ XX(INVALID_CHUNK_SIZE, \
+ "invalid character in chunk size header") \
+ XX(INVALID_CONSTANT, "invalid constant string") \
+ XX(INVALID_INTERNAL_STATE, "encountered unexpected internal state")\
+ XX(STRICT, "strict mode assertion failed") \
+ XX(UNKNOWN, "an unknown error occurred")
+
+
+/* Define HPE_* values for each errno value above */
+#define HTTP_ERRNO_GEN(n, s) HPE_##n,
+enum http_errno {
+ HTTP_ERRNO_MAP(HTTP_ERRNO_GEN)
+};
+#undef HTTP_ERRNO_GEN
+
+
+/* Get an http_errno value from an http_parser */
+#define HTTP_PARSER_ERRNO(p) ((enum http_errno) (p)->http_errno)
+
+/* Get the line number that generated the current error */
+#if HTTP_PARSER_DEBUG
+#define HTTP_PARSER_ERRNO_LINE(p) ((p)->error_lineno)
+#else
+#define HTTP_PARSER_ERRNO_LINE(p) 0
+#endif
+
+
+struct http_parser {
+ /** PRIVATE **/
+ unsigned char type : 2;
+ unsigned char flags : 6; /* F_* values from 'flags' enum; semi-public */
+ unsigned char state;
+ unsigned char header_state;
+ unsigned char index;
+
+ uint32_t nread;
+ int64_t content_length;
+
+ /** READ-ONLY **/
+ unsigned short http_major;
+ unsigned short http_minor;
+ unsigned short status_code; /* responses only */
+ unsigned char method; /* requests only */
+ unsigned char http_errno : 7;
+
+ /* 1 = Upgrade header was present and the parser has exited because of that.
+ * 0 = No upgrade header present.
+ * Should be checked when http_parser_execute() returns in addition to
+ * error checking.
+ */
+ unsigned char upgrade : 1;
+
+#if HTTP_PARSER_DEBUG
+ uint32_t error_lineno;
+#endif
+
+ /** PUBLIC **/
+ void *data; /* A pointer to get hook to the "connection" or "socket" object */
+};
+
+
+struct http_parser_settings {
+ http_cb on_message_begin;
+ http_data_cb on_url;
+ http_data_cb on_header_field;
+ http_data_cb on_header_value;
+ http_cb on_headers_complete;
+ http_data_cb on_body;
+ http_cb on_message_complete;
+};
+
+
+void http_parser_init(http_parser *parser, enum http_parser_type type);
+
+
+size_t http_parser_execute(http_parser *parser,
+ const http_parser_settings *settings,
+ const char *data,
+ size_t len);
+
+
+/* If http_should_keep_alive() in the on_headers_complete or
+ * on_message_complete callback returns true, then this will be should be
+ * the last message on the connection.
+ * If you are the server, respond with the "Connection: close" header.
+ * If you are the client, close the connection.
+ */
+int http_should_keep_alive(http_parser *parser);
+
+/* Returns a string version of the HTTP method. */
+const char *http_method_str(enum http_method m);
+
+/* Return a string name of the given error */
+const char *http_errno_name(enum http_errno err);
+
+/* Return a string description of the given error */
+const char *http_errno_description(enum http_errno err);
+
+#ifdef __cplusplus
+}
+#endif
+#endif