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/*
+----------------------------------------------------------------------+
| Swoole |
+----------------------------------------------------------------------+
| Copyright (c) 2012-2015 The Swoole Group |
+----------------------------------------------------------------------+
| This source file is subject to version 2.0 of the Apache license, |
| that is bundled with this package in the file LICENSE, and is |
| available through the world-wide-web at the following url: |
| http://www.apache.org/licenses/LICENSE-2.0.html |
| If you did not receive a copy of the Apache2.0 license and are unable|
| to obtain it through the world-wide-web, please send a note to |
| license@swoole.com so we can mail you a copy immediately. |
+----------------------------------------------------------------------+
| Author: Tianfeng Han <rango@swoole.com> |
+----------------------------------------------------------------------+
*/
#pragma once
#include "swoole_http.h"
#include "swoole_http2.h"
#include "thirdparty/swoole_http_parser.h"
#include "thirdparty/multipart_parser.h"
#include <unordered_map>
#include <unordered_set>
#ifdef SW_HAVE_ZLIB
#include <zlib.h>
#define SW_ZLIB_ENCODING_RAW -0xf
#define SW_ZLIB_ENCODING_GZIP 0x1f
#define SW_ZLIB_ENCODING_DEFLATE 0x0f
#define SW_ZLIB_ENCODING_ANY 0x2f
#endif
#include <nghttp2/nghttp2.h>
enum swHttpHeaderFlag {
HTTP_HEADER_SERVER = 1u << 1,
HTTP_HEADER_CONNECTION = 1u << 2,
HTTP_HEADER_CONTENT_LENGTH = 1u << 3,
HTTP_HEADER_DATE = 1u << 4,
HTTP_HEADER_CONTENT_TYPE = 1u << 5,
HTTP_HEADER_TRANSFER_ENCODING = 1u << 6,
HTTP_HEADER_ACCEPT_ENCODING = 1u << 7,
HTTP_HEADER_CONTENT_ENCODING = 1u << 8,
};
enum swHttpCompressMethod {
HTTP_COMPRESS_NONE,
HTTP_COMPRESS_GZIP,
HTTP_COMPRESS_DEFLATE,
HTTP_COMPRESS_BR,
};
namespace swoole {
class Server;
class Coroutine;
namespace http2 {
class Stream;
class Session;
} // namespace http2
namespace http {
struct Request {
int version;
char *path;
uint32_t path_len;
const char *ext;
uint32_t ext_len;
uint8_t post_form_urlencoded;
zval zdata;
const char *body_at;
size_t body_length;
String *chunked_body;
String *h2_data_buffer;
// Notice: Do not change the order
zval *zobject;
zval _zobject;
zval *zserver;
zval _zserver;
zval *zheader;
zval _zheader;
zval *zget;
zval _zget;
zval *zpost;
zval _zpost;
zval *zcookie;
zval _zcookie;
zval *zfiles;
zval _zfiles;
zval *ztmpfiles;
zval _ztmpfiles;
};
struct Response {
enum swoole_http_method method;
int version;
int status;
char *reason;
// Notice: Do not change the order
zval *zobject;
zval _zobject;
zval *zheader;
zval _zheader;
zval *zcookie;
zval _zcookie;
zval *ztrailer;
zval _ztrailer;
};
struct Context {
SessionId fd;
uchar completed : 1;
uchar end_ : 1;
uchar send_header_ : 1;
#ifdef SW_HAVE_COMPRESSION
uchar enable_compression : 1;
uchar accept_compression : 1;
uchar content_compressed : 1;
#endif
uchar send_chunked : 1;
uchar recv_chunked : 1;
uchar send_trailer_ : 1;
uchar keepalive : 1;
uchar websocket : 1;
#ifdef SW_HAVE_ZLIB
uchar websocket_compression : 1;
#endif
uchar upgrade : 1;
uchar detached : 1;
uchar parse_cookie : 1;
uchar parse_body : 1;
uchar parse_files : 1;
uchar co_socket : 1;
uchar http2 : 1;
http2::Stream *stream;
String *write_buffer;
#ifdef SW_HAVE_COMPRESSION
int8_t compression_level;
int8_t compression_method;
uint32_t compression_min_length;
std::shared_ptr<std::unordered_set<std::string>> compression_types;
std::shared_ptr<String> zlib_buffer;
#endif
Request request;
Response response;
swoole_http_parser parser;
multipart_parser *mt_parser;
uint16_t input_var_num;
char *current_header_name;
size_t current_header_name_len;
char *current_input_name;
size_t current_input_name_len;
char *current_form_data_name;
size_t current_form_data_name_len;
zval *current_multipart_header;
String *form_data_buffer;
std::string upload_tmp_dir;
void *private_data;
void *private_data_2;
bool (*send)(Context *ctx, const char *data, size_t length);
bool (*sendfile)(Context *ctx, const char *file, uint32_t l_file, off_t offset, size_t length);
bool (*close)(Context *ctx);
bool (*onBeforeRequest)(Context *ctx);
void (*onAfterResponse)(Context *ctx);
void init(Server *server);
void init(coroutine::Socket *socket);
void bind(Server *server);
void bind(coroutine::Socket *socket);
void copy(Context *ctx);
bool init_multipart_parser(const char *boundary_str, int boundary_len);
bool get_multipart_boundary(
const char *at, size_t length, size_t offset, char **out_boundary_str, int *out_boundary_len);
size_t parse(const char *data, size_t length);
bool parse_multipart_data(const char *at, size_t length);
bool set_header(const char *, size_t, zval *, bool);
bool set_header(const char *, size_t, const char *, size_t, bool);
void end(zval *zdata, zval *return_value);
bool send_file(const char *file, uint32_t l_file, off_t offset, size_t length);
void send_trailer(zval *return_value);
String *get_write_buffer();
void build_header(String *http_buffer, const char *body, size_t length);
ssize_t build_trailer(String *http_buffer);
size_t get_content_length() {
return parser.content_length;
}
#ifdef SW_HAVE_COMPRESSION
void set_compression_method(const char *accept_encoding, size_t length);
const char *get_content_encoding();
bool compress(const char *data, size_t length);
#endif
void http2_end(zval *zdata, zval *return_value);
bool http2_send_file(const char *file, uint32_t l_file, off_t offset, size_t length);
bool is_available();
void free();
};
} // namespace http
namespace http2 {
class Stream {
public:
http::Context *ctx;
// uint8_t priority; // useless now
uint32_t id;
// flow control
uint32_t remote_window_size;
uint32_t local_window_size;
Coroutine *waiting_coroutine = nullptr;
Stream(Session *client, uint32_t _id);
~Stream();
bool send_header(const String *body, bool end_stream);
bool send_body(const String *body, bool end_stream, size_t max_frame_size, off_t offset = 0, size_t length = 0);
bool send_trailer();
void reset(uint32_t error_code);
};
class Session {
public:
int fd;
std::unordered_map<uint32_t, Stream *> streams;
nghttp2_hd_inflater *inflater = nullptr;
nghttp2_hd_deflater *deflater = nullptr;
http2::Settings local_settings = {};
http2::Settings remote_settings = {};
// flow control
uint32_t remote_window_size;
uint32_t local_window_size;
uint32_t last_stream_id;
bool shutting_down;
bool is_coro;
http::Context *default_ctx = nullptr;
void *private_data = nullptr;
void (*handle)(Session *, Stream *) = nullptr;
Session(SessionId _fd);
~Session();
};
} // namespace http2
} // namespace swoole
extern zend_class_entry *swoole_http_server_ce;
extern zend_class_entry *swoole_http_request_ce;
extern zend_class_entry *swoole_http_response_ce;
swoole::http::Context *swoole_http_context_new(swoole::SessionId fd);
swoole::http::Context *php_swoole_http_request_get_and_check_context(zval *zobject);
swoole::http::Context *php_swoole_http_response_get_and_check_context(zval *zobject);
/**
* These class properties cannot be modified by the user before assignment, such as Swoole\\Http\\Request.
* So we can use this function to init property.
*/
static sw_inline zval *swoole_http_init_and_read_property(
zend_class_entry *ce, zval *zobject, zval **zproperty_store_pp, zend_string *name, int size = HT_MIN_SIZE) {
if (UNEXPECTED(!*zproperty_store_pp)) {
zval *zv = zend_hash_find(&ce->properties_info, name);
zend_property_info *property_info = (zend_property_info *) Z_PTR_P(zv);
zval *property = OBJ_PROP(SW_Z8_OBJ_P(zobject), property_info->offset);
array_init_size(property, size);
*zproperty_store_pp = (zval *) (zproperty_store_pp + 1);
**zproperty_store_pp = *property;
}
return *zproperty_store_pp;
}
static sw_inline zval *swoole_http_init_and_read_property(
zend_class_entry *ce, zval *zobject, zval **zproperty_store_pp, const char *name, size_t name_len) {
if (UNEXPECTED(!*zproperty_store_pp)) {
// Notice: swoole http server properties can not be unset anymore, so we can read it without checking
zval rv, *property = zend_read_property(ce, SW_Z8_OBJ_P(zobject), name, name_len, 0, &rv);
array_init(property);
*zproperty_store_pp = (zval *) (zproperty_store_pp + 1);
**zproperty_store_pp = *property;
}
return *zproperty_store_pp;
}
static inline bool swoole_http_has_crlf(const char *value, size_t length) {
/* new line/NUL character safety check */
for (size_t i = 0; i < length; i++) {
/* RFC 7230 ch. 3.2.4 deprecates folding support */
if (value[i] == '\n' || value[i] == '\r') {
php_swoole_error(E_WARNING, "Header may not contain more than a single header, new line detected");
return true;
}
if (value[i] == '\0') {
php_swoole_error(E_WARNING, "Header may not contain NUL bytes");
return true;
}
}
return false;
}
void swoole_http_parse_cookie(zval *array, const char *at, size_t length);
bool swoole_http_token_list_contains_value(const char *at, size_t length, const char *value);
swoole::http::Context *php_swoole_http_request_get_context(zval *zobject);
void php_swoole_http_request_set_context(zval *zobject, swoole::http::Context *context);
swoole::http::Context *php_swoole_http_response_get_context(zval *zobject);
void php_swoole_http_response_set_context(zval *zobject, swoole::http::Context *context);
#ifdef SW_HAVE_ZLIB
voidpf php_zlib_alloc(voidpf opaque, uInt items, uInt size);
void php_zlib_free(voidpf opaque, voidpf address);
#endif
#ifdef SW_HAVE_BROTLI
void *php_brotli_alloc(void *opaque, size_t size);
void php_brotli_free(void *opaque, void *address);
#endif
static sw_inline nghttp2_mem *php_nghttp2_mem() {
static nghttp2_mem mem = {nullptr,
[](size_t size, void *mem_user_data) { return emalloc(size); },
[](void *ptr, void *mem_user_data) { return efree(ptr); },
[](size_t nmemb, size_t size, void *mem_user_data) { return ecalloc(nmemb, size); },
[](void *ptr, size_t size, void *mem_user_data) { return erealloc(ptr, size); }};
return &mem;
}
namespace swoole {
namespace http2 {
//-----------------------------------namespace begin--------------------------------------------
class HeaderSet {
public:
HeaderSet(size_t size) : size(size), index(0) {
nvs = (nghttp2_nv *) ecalloc(size, sizeof(nghttp2_nv));
}
inline nghttp2_nv *get() {
return nvs;
}
inline size_t len() {
return index;
}
void reserve_one() {
index++;
}
inline void add(size_t index,
const char *name,
size_t name_len,
const char *value,
size_t value_len,
const uint8_t flags = NGHTTP2_NV_FLAG_NONE) {
if (sw_likely(index < size || nvs[index].name == nullptr)) {
nghttp2_nv *nv = &nvs[index];
name = zend_str_tolower_dup(name, name_len); // auto to lower
nv->name = (uchar *) name;
nv->namelen = name_len;
nv->value = (uchar *) emalloc(value_len);
memcpy(nv->value, value, value_len);
nv->valuelen = value_len;
nv->flags = flags | NGHTTP2_NV_FLAG_NO_COPY_NAME | NGHTTP2_NV_FLAG_NO_COPY_VALUE;
swoole_trace_log(SW_TRACE_HTTP2,
"name=(%zu)[" SW_ECHO_LEN_BLUE "], value=(%zu)[" SW_ECHO_LEN_CYAN "]",
name_len,
(int) name_len,
name,
value_len,
(int) value_len,
value);
} else {
php_swoole_fatal_error(
E_WARNING, "unexpect http2 header [%.*s] (duplicated or overflow)", (int) name_len, name);
}
}
inline void add(const char *name,
size_t name_len,
const char *value,
size_t value_len,
const uint8_t flags = NGHTTP2_NV_FLAG_NONE) {
add(index++, name, name_len, value, value_len, flags);
}
~HeaderSet() {
for (size_t i = 0; i < size; ++i) {
if (sw_likely(nvs[i].name /* && nvs[i].value */)) {
efree((void *) nvs[i].name);
efree((void *) nvs[i].value);
}
}
efree(nvs);
}
private:
nghttp2_nv *nvs;
size_t size;
size_t index;
};
//-----------------------------------namespace end--------------------------------------------
} // namespace http2
} // namespace swoole
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