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 /*
  * libwebsockets - small server side websockets and web server implementation
  *
  * Copyright (C) 2010-2016 Andy Green <andy@warmcat.com>
  *
  *  This library is free software; you can redistribute it and/or
  *  modify it under the terms of the GNU Lesser General Public
  *  License as published by the Free Software Foundation:
  *  version 2.1 of the License.
  *
  *  This library is distributed in the hope that it will be useful,
  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  *  Lesser General Public License for more details.
  *
  *  You should have received a copy of the GNU Lesser General Public
  *  License along with this library; if not, write to the Free Software
  *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
  *  MA  02110-1301  USA
  */
 
 #ifndef LIBWEBSOCKET_H_3060898B846849FF9F88F5DB59B5950C
 #define LIBWEBSOCKET_H_3060898B846849FF9F88F5DB59B5950C
 
 #ifdef __cplusplus
 #include <cstddef>
 #include <cstdarg>
 #ifdef MBED_OPERATORS
 #include "mbed-drivers/mbed.h"
 #include "sal-iface-eth/EthernetInterface.h"
 #include "sockets/TCPListener.h"
 #include "sal-stack-lwip/lwipv4_init.h"
 
 namespace {
 }
 using namespace mbed::Sockets::v0;
 
 
 struct sockaddr_in;
 struct lws;
 
 class lws_conn {
         public:
         lws_conn():
                 ts(NULL),
                 wsi(NULL),
                 writeable(1),
                 awaiting_on_writeable(0)
         {
         }
 
 public:
         void set_wsi(struct lws *_wsi) { wsi = _wsi; }
         int actual_onRX(Socket *s);
         void onRX(Socket *s);
         void onError(Socket *s, socket_error_t err);
         void onDisconnect(TCPStream *s);
         void onSent(Socket *s, uint16_t len);
         void serialized_writeable(struct lws *wsi);
 
 public:
         TCPStream *ts;
 
 public:
         struct lws *wsi;
         char writeable;
         char awaiting_on_writeable;
 };
 
 class lws_conn_listener : lws_conn {
 public:
         lws_conn_listener():
                 srv(SOCKET_STACK_LWIP_IPV4)
         {
                 srv.setOnError(TCPStream::ErrorHandler_t(this,
                                 &lws_conn_listener::onError));
         }
 
         void start(const uint16_t port); 
 protected:
         void onRX(Socket *s); 
         void onError(Socket *s, socket_error_t err); 
         void onIncoming(TCPListener *s, void *impl); 
         void onDisconnect(TCPStream *s); 
 public:
         TCPListener srv;
 };
 
 #endif
 
 extern "C" {
 #else
 #include <stdarg.h>
 #endif
 
 #if defined(MBED_OPERATORS) || defined(LWS_WITH_ESP8266)
 struct sockaddr_in;
 #define LWS_POSIX 0
 #else
 #define LWS_POSIX 1
 #endif
 
 #include "lws_config.h"
 
 #if defined(WIN32) || defined(_WIN32)
 #ifndef WIN32_LEAN_AND_MEAN
 #define WIN32_LEAN_AND_MEAN
 #endif
 
 #include <winsock2.h>
 #include <ws2tcpip.h>
 #include <stddef.h>
 #include <basetsd.h>
 #ifndef _WIN32_WCE
 #include <fcntl.h>
 #else
 #define _O_RDONLY       0x0000
 #define O_RDONLY        _O_RDONLY
 #endif
 
 // Visual studio older than 2015 and WIN_CE has only _stricmp
 #if (defined(_MSC_VER) && _MSC_VER < 1900) || defined(_WIN32_WCE)
 #define strcasecmp _stricmp
 #elif !defined(__MINGW32__)
 #define strcasecmp stricmp
 #endif
 #define getdtablesize() 30000
 
 #define LWS_INLINE __inline
 #define LWS_VISIBLE
 #define LWS_WARN_UNUSED_RESULT
 #define LWS_WARN_DEPRECATED
 
 #ifdef LWS_DLL
 #ifdef LWS_INTERNAL
 #define LWS_EXTERN extern __declspec(dllexport)
 #else
 #define LWS_EXTERN extern __declspec(dllimport)
 #endif
 #else
 #define LWS_EXTERN
 #endif
 
 #define LWS_INVALID_FILE INVALID_HANDLE_VALUE
 #define LWS_O_RDONLY _O_RDONLY
 
 #if !defined(__MINGW32__) && (!defined(_MSC_VER) || _MSC_VER < 1900) /* Visual Studio 2015 already defines this in <stdio.h> */
 #define lws_snprintf _snprintf
 #endif
 
 #ifndef __func__
 #define __func__ __FUNCTION__
 #endif
 
 #else /* NOT WIN32 */
 #include <unistd.h>
 
 #if defined(__NetBSD__) || defined(__FreeBSD__)
 #include <netinet/in.h>
 #endif
 
 #define LWS_INLINE inline
 #define LWS_O_RDONLY O_RDONLY
 
 #if !defined(MBED_OPERATORS) && !defined(LWS_WITH_ESP8266)
 #include <poll.h>
 #include <netdb.h>
 #define LWS_INVALID_FILE -1
 #else
 #define getdtablesize() (20)
 #define LWS_INVALID_FILE NULL
 #endif
 
 #if defined(__GNUC__)
 
 /* warn_unused_result attribute only supported by GCC 3.4 or later */
 #if __GNUC__ >= 4 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 4)
 #define LWS_WARN_UNUSED_RESULT __attribute__((warn_unused_result))
 #else
 #define LWS_WARN_UNUSED_RESULT
 #endif
 
 #define LWS_VISIBLE __attribute__((visibility("default")))
 #define LWS_WARN_DEPRECATED __attribute__ ((deprecated))
 #else
 #define LWS_VISIBLE
 #define LWS_WARN_UNUSED_RESULT
 #define LWS_WARN_DEPRECATED
 #endif
 
 #if defined(__ANDROID__)
 #include <unistd.h>
 #define getdtablesize() sysconf(_SC_OPEN_MAX)
 #endif
 
 #endif
 
 #ifdef LWS_USE_LIBEV
 #include <ev.h>
 #endif /* LWS_USE_LIBEV */
 #ifdef LWS_USE_LIBUV
 #include <uv.h>
 #ifdef LWS_HAVE_UV_VERSION_H
 #include <uv-version.h>
 #endif
 #endif /* LWS_USE_LIBUV */
 
 #ifndef LWS_EXTERN
 #define LWS_EXTERN extern
 #endif
 
 #ifdef _WIN32
 #define random rand
 #else
 #include <sys/time.h>
 #include <unistd.h>
 #endif
 
 #ifdef LWS_OPENSSL_SUPPORT
 
 #ifdef USE_WOLFSSL
 #ifdef USE_OLD_CYASSL
 #include <cyassl/openssl/ssl.h>
 #include <cyassl/error-ssl.h>
 #else
 #include <wolfssl/openssl/ssl.h>
 #include <wolfssl/error-ssl.h>
 #endif /* not USE_OLD_CYASSL */
 #else
 #if defined(LWS_USE_POLARSSL)
 #include <polarssl/ssl.h>
 struct lws_polarssl_context {
         x509_crt ca; 
         x509_crt certificate; 
         rsa_context key; 
 };
 typedef struct lws_polarssl_context SSL_CTX;
 typedef ssl_context SSL;
 #else
 #if defined(LWS_USE_MBEDTLS)
 #include <mbedtls/ssl.h>
 #else
 #include <openssl/ssl.h>
 #include <openssl/err.h>
 #endif /* not USE_MBEDTLS */
 #endif /* not USE_POLARSSL */
 #endif /* not USE_WOLFSSL */
 #endif
 
 
 #define CONTEXT_PORT_NO_LISTEN -1
 
 
 enum lws_log_levels {
         LLL_ERR = 1 << 0,
         LLL_WARN = 1 << 1,
         LLL_NOTICE = 1 << 2,
         LLL_INFO = 1 << 3,
         LLL_DEBUG = 1 << 4,
         LLL_PARSER = 1 << 5,
         LLL_HEADER = 1 << 6,
         LLL_EXT = 1 << 7,
         LLL_CLIENT = 1 << 8,
         LLL_LATENCY = 1 << 9,
 
         LLL_COUNT = 10 /* set to count of valid flags */
 };
 
 LWS_VISIBLE LWS_EXTERN void _lws_log(int filter, const char *format, ...);
 LWS_VISIBLE LWS_EXTERN void _lws_logv(int filter, const char *format, va_list vl);
 LWS_VISIBLE LWS_EXTERN int
 lwsl_timestamp(int level, char *p, int len);
 
 #define lwsl_err(...) _lws_log(LLL_ERR, __VA_ARGS__)
 
 #if !defined(LWS_WITH_NO_LOGS)
 /* notice, warn and log are always compiled in */
 #define lwsl_warn(...) _lws_log(LLL_WARN, __VA_ARGS__)
 #define lwsl_notice(...) _lws_log(LLL_NOTICE, __VA_ARGS__)
 #endif
 /*
  *  weaker logging can be deselected at configure time using --disable-debug
  *  that gets rid of the overhead of checking while keeping _warn and _err
  *  active
  */
 
 #if defined(LWS_WITH_ESP8266)
 #undef _DEBUG
 #endif
 
 #ifdef _DEBUG
 #if defined(LWS_WITH_NO_LOGS)
 /* notice, warn and log are always compiled in */
 //#define lwsl_err(...) _lws_log(LLL_ERR, __VA_ARGS__)
 #define lwsl_warn(...) _lws_log(LLL_WARN, __VA_ARGS__)
 #define lwsl_notice(...) _lws_log(LLL_NOTICE, __VA_ARGS__)
 #endif
 #define lwsl_info(...) _lws_log(LLL_INFO, __VA_ARGS__)
 #define lwsl_debug(...) _lws_log(LLL_DEBUG, __VA_ARGS__)
 #define lwsl_parser(...) _lws_log(LLL_PARSER, __VA_ARGS__)
 #define lwsl_header(...)  _lws_log(LLL_HEADER, __VA_ARGS__)
 #define lwsl_ext(...)  _lws_log(LLL_EXT, __VA_ARGS__)
 #define lwsl_client(...) _lws_log(LLL_CLIENT, __VA_ARGS__)
 #define lwsl_latency(...) _lws_log(LLL_LATENCY, __VA_ARGS__)
 
 LWS_VISIBLE LWS_EXTERN void lwsl_hexdump(void *buf, size_t len);
 
 #else /* no debug */
 #if defined(LWS_WITH_NO_LOGS)
 //#define lwsl_err(...) do {} while(0)
 #define lwsl_warn(...) do {} while(0)
 #define lwsl_notice(...) do {} while(0)
 #endif
 #define lwsl_info(...) do {} while(0)
 #define lwsl_debug(...) do {} while(0)
 #define lwsl_parser(...) do {} while(0)
 #define lwsl_header(...) do {} while(0)
 #define lwsl_ext(...) do {} while(0)
 #define lwsl_client(...) do {} while(0)
 #define lwsl_latency(...) do {} while(0)
 #define lwsl_hexdump(a, b)
 
 #endif
 
 LWS_VISIBLE LWS_EXTERN void
 lws_set_log_level(int level,
                   void (*log_emit_function)(int level, const char *line));
 
 LWS_VISIBLE LWS_EXTERN void
 lwsl_emit_syslog(int level, const char *line);
 
 
 
 #include <stddef.h>
 
 #ifndef lws_container_of
 #define lws_container_of(P,T,M) ((T *)((char *)(P) - offsetof(T, M)))
 #endif
 
 
 struct lws;
 #ifndef ARRAY_SIZE
 #define ARRAY_SIZE(x) (sizeof(x) / sizeof(x[0]))
 #endif
 
 /* api change list for user code to test against */
 
 #define LWS_FEATURE_SERVE_HTTP_FILE_HAS_OTHER_HEADERS_ARG
 
 /* the struct lws_protocols has the id field present */
 #define LWS_FEATURE_PROTOCOLS_HAS_ID_FIELD
 
 /* you can call lws_get_peer_write_allowance */
 #define LWS_FEATURE_PROTOCOLS_HAS_PEER_WRITE_ALLOWANCE
 
 /* extra parameter introduced in 917f43ab821 */
 #define LWS_FEATURE_SERVE_HTTP_FILE_HAS_OTHER_HEADERS_LEN
 
 /* File operations stuff exists */
 #define LWS_FEATURE_FOPS
 
 
 #if defined(_WIN32)
 typedef SOCKET lws_sockfd_type;
 typedef HANDLE lws_filefd_type;
 #define lws_sockfd_valid(sfd) (!!sfd)
 struct lws_pollfd {
         lws_sockfd_type fd; 
         SHORT events; 
         SHORT revents; 
 };
 #define LWS_POLLHUP (FD_CLOSE)
 #define LWS_POLLIN (FD_READ | FD_ACCEPT)
 #define LWS_POLLOUT (FD_WRITE)
 #else
 
 #if defined(MBED_OPERATORS)
 /* it's a class lws_conn * */
 typedef void * lws_sockfd_type;
 typedef void * lws_filefd_type;
 #define lws_sockfd_valid(sfd) (!!sfd)
 struct pollfd {
         lws_sockfd_type fd; 
         short events; 
         short revents; 
 };
 #define POLLIN          0x0001
 #define POLLPRI         0x0002
 #define POLLOUT         0x0004
 #define POLLERR         0x0008
 #define POLLHUP         0x0010
 #define POLLNVAL        0x0020
 
 struct lws;
 
 void * mbed3_create_tcp_stream_socket(void);
 void mbed3_delete_tcp_stream_socket(void *sockfd);
 void mbed3_tcp_stream_bind(void *sock, int port, struct lws *);
 void mbed3_tcp_stream_accept(void *sock, struct lws *);
 #else
 #if defined(LWS_WITH_ESP8266)
 
 #include <user_interface.h>
 #include <espconn.h>
 
 typedef struct espconn * lws_sockfd_type;
 typedef void * lws_filefd_type;
 #define lws_sockfd_valid(sfd) (!!sfd)
 struct pollfd {
         lws_sockfd_type fd; 
         short events; 
         short revents; 
 };
 #define POLLIN          0x0001
 #define POLLPRI         0x0002
 #define POLLOUT         0x0004
 #define POLLERR         0x0008
 #define POLLHUP         0x0010
 #define POLLNVAL        0x0020
 
 struct lws_vhost;
 
 lws_sockfd_type esp8266_create_tcp_listen_socket(struct lws_vhost *vh);
 void esp8266_tcp_stream_accept(lws_sockfd_type fd, struct lws *wsi);
 
 #include <os_type.h>
 #include <osapi.h>
 #include "ets_sys.h"
 
 int ets_snprintf(char *str, size_t size, const char *format, ...);
 #define snprintf  ets_snprintf
 
 typedef os_timer_t uv_timer_t;
 typedef void uv_cb_t(uv_timer_t *);
 
 void os_timer_disarm(void *);
 void os_timer_setfn(os_timer_t *, os_timer_func_t *, void *);
 
 void ets_timer_arm_new(os_timer_t *, int, int, int);
 
 //void os_timer_arm(os_timer_t *, int, int);
 
 #define UV_VERSION_MAJOR 1
 
 #define lws_uv_getloop(a, b) (NULL)
 
 static inline void uv_timer_init(void *l, uv_timer_t *t)
 {
         (void)l;
         memset(t, 0, sizeof(*t));
         os_timer_disarm(t);
 }
 
 static inline void uv_timer_start(uv_timer_t *t, uv_cb_t *cb, int first, int rep)
 {
         os_timer_setfn(t, (os_timer_func_t *)cb, t);
         /* ms, repeat */
         os_timer_arm(t, first, !!rep);
 }
 
 static inline void uv_timer_stop(uv_timer_t *t)
 {
         os_timer_disarm(t);
 }
 
 #else
 typedef int lws_sockfd_type;
 typedef int lws_filefd_type;
 #define lws_sockfd_valid(sfd) (sfd >= 0)
 #endif
 #endif
 
 #define lws_pollfd pollfd
 #define LWS_POLLHUP (POLLHUP|POLLERR)
 #define LWS_POLLIN (POLLIN)
 #define LWS_POLLOUT (POLLOUT)
 #endif
 
 struct lws_pollargs {
         lws_sockfd_type fd;     
         int events;             
         int prev_events;        
 };
 
 struct lws_tokens;
 struct lws_token_limits;
 
 
 /*
  * NOTE: These public enums are part of the abi.  If you want to add one,
  * add it at where specified so existing users are unaffected.
  */
 enum lws_close_status {
         LWS_CLOSE_STATUS_NOSTATUS                               =    0,
         LWS_CLOSE_STATUS_NORMAL                                 = 1000,
         LWS_CLOSE_STATUS_GOINGAWAY                              = 1001,
         LWS_CLOSE_STATUS_PROTOCOL_ERR                           = 1002,
         LWS_CLOSE_STATUS_UNACCEPTABLE_OPCODE                    = 1003,
         LWS_CLOSE_STATUS_RESERVED                               = 1004,
         LWS_CLOSE_STATUS_NO_STATUS                              = 1005,
         LWS_CLOSE_STATUS_ABNORMAL_CLOSE                         = 1006,
         LWS_CLOSE_STATUS_INVALID_PAYLOAD                        = 1007,
         LWS_CLOSE_STATUS_POLICY_VIOLATION                       = 1008,
         LWS_CLOSE_STATUS_MESSAGE_TOO_LARGE                      = 1009,
         LWS_CLOSE_STATUS_EXTENSION_REQUIRED                     = 1010,
         LWS_CLOSE_STATUS_UNEXPECTED_CONDITION                   = 1011,
         LWS_CLOSE_STATUS_TLS_FAILURE                            = 1015,
         /****** add new things just above ---^ ******/
 
         LWS_CLOSE_STATUS_NOSTATUS_CONTEXT_DESTROY               = 9999,
 };
 
 LWS_VISIBLE LWS_EXTERN void
 lws_close_reason(struct lws *wsi, enum lws_close_status status,
                  unsigned char *buf, size_t len);
 
 
 struct lws;
 struct lws_context;
 /* needed even with extensions disabled for create context */
 struct lws_extension;
 
 
 
 /*
  * NOTE: These public enums are part of the abi.  If you want to add one,
  * add it at where specified so existing users are unaffected.
  */
 enum lws_callback_reasons {
         LWS_CALLBACK_ESTABLISHED                                =  0,
         LWS_CALLBACK_CLIENT_CONNECTION_ERROR                    =  1,
         LWS_CALLBACK_CLIENT_FILTER_PRE_ESTABLISH                =  2,
         LWS_CALLBACK_CLIENT_ESTABLISHED                         =  3,
         LWS_CALLBACK_CLOSED                                     =  4,
         LWS_CALLBACK_CLOSED_HTTP                                =  5,
         LWS_CALLBACK_RECEIVE                                    =  6,
         LWS_CALLBACK_RECEIVE_PONG                               =  7,
         LWS_CALLBACK_CLIENT_RECEIVE                             =  8,
         LWS_CALLBACK_CLIENT_RECEIVE_PONG                        =  9,
         LWS_CALLBACK_CLIENT_WRITEABLE                           = 10,
         LWS_CALLBACK_SERVER_WRITEABLE                           = 11,
         LWS_CALLBACK_HTTP                                       = 12,
         LWS_CALLBACK_HTTP_BODY                                  = 13,
         LWS_CALLBACK_HTTP_BODY_COMPLETION                       = 14,
         LWS_CALLBACK_HTTP_FILE_COMPLETION                       = 15,
         LWS_CALLBACK_HTTP_WRITEABLE                             = 16,
         LWS_CALLBACK_FILTER_NETWORK_CONNECTION                  = 17,
         LWS_CALLBACK_FILTER_HTTP_CONNECTION                     = 18,
         LWS_CALLBACK_SERVER_NEW_CLIENT_INSTANTIATED             = 19,
         LWS_CALLBACK_FILTER_PROTOCOL_CONNECTION                 = 20,
         LWS_CALLBACK_OPENSSL_LOAD_EXTRA_CLIENT_VERIFY_CERTS     = 21,
         LWS_CALLBACK_OPENSSL_LOAD_EXTRA_SERVER_VERIFY_CERTS     = 22,
         LWS_CALLBACK_OPENSSL_PERFORM_CLIENT_CERT_VERIFICATION   = 23,
         LWS_CALLBACK_CLIENT_APPEND_HANDSHAKE_HEADER             = 24,
         LWS_CALLBACK_CONFIRM_EXTENSION_OKAY                     = 25,
         LWS_CALLBACK_CLIENT_CONFIRM_EXTENSION_SUPPORTED         = 26,
         LWS_CALLBACK_PROTOCOL_INIT                              = 27,
         LWS_CALLBACK_PROTOCOL_DESTROY                           = 28,
         LWS_CALLBACK_WSI_CREATE                                 = 29,
         LWS_CALLBACK_WSI_DESTROY                                = 30,
         LWS_CALLBACK_GET_THREAD_ID                              = 31,
         /* external poll() management support */
         LWS_CALLBACK_ADD_POLL_FD                                = 32,
         LWS_CALLBACK_DEL_POLL_FD                                = 33,
         LWS_CALLBACK_CHANGE_MODE_POLL_FD                        = 34,
         LWS_CALLBACK_LOCK_POLL                                  = 35,
         LWS_CALLBACK_UNLOCK_POLL                                = 36,
         LWS_CALLBACK_OPENSSL_CONTEXT_REQUIRES_PRIVATE_KEY       = 37,
         LWS_CALLBACK_WS_PEER_INITIATED_CLOSE                    = 38,
         LWS_CALLBACK_WS_EXT_DEFAULTS                            = 39,
         LWS_CALLBACK_CGI                                        = 40,
         LWS_CALLBACK_CGI_TERMINATED                             = 41,
         LWS_CALLBACK_CGI_STDIN_DATA                             = 42,
         LWS_CALLBACK_CGI_STDIN_COMPLETED                        = 43,
         LWS_CALLBACK_ESTABLISHED_CLIENT_HTTP                    = 44,
         LWS_CALLBACK_CLOSED_CLIENT_HTTP                         = 45,
         LWS_CALLBACK_RECEIVE_CLIENT_HTTP                        = 46,
         LWS_CALLBACK_COMPLETED_CLIENT_HTTP                      = 47,
         LWS_CALLBACK_RECEIVE_CLIENT_HTTP_READ                   = 48,
         LWS_CALLBACK_HTTP_BIND_PROTOCOL                         = 49,
         LWS_CALLBACK_HTTP_DROP_PROTOCOL                         = 50,
         LWS_CALLBACK_CHECK_ACCESS_RIGHTS                        = 51,
         LWS_CALLBACK_PROCESS_HTML                               = 52,
         LWS_CALLBACK_ADD_HEADERS                                = 53,
         LWS_CALLBACK_SESSION_INFO                               = 54,
         LWS_CALLBACK_GS_EVENT                                   = 55,
         LWS_CALLBACK_HTTP_PMO                                   = 56,
         LWS_CALLBACK_CLIENT_HTTP_WRITEABLE                      = 57,
         /****** add new things just above ---^ ******/
 
         LWS_CALLBACK_USER = 1000,
 };
 
 
 
 typedef int
 lws_callback_function(struct lws *wsi, enum lws_callback_reasons reason,
                     void *user, void *in, size_t len);
 
 
 /*
  * NOTE: These public enums are part of the abi.  If you want to add one,
  * add it at where specified so existing users are unaffected.
  */
 enum lws_extension_callback_reasons {
         LWS_EXT_CB_SERVER_CONTEXT_CONSTRUCT             =  0,
         LWS_EXT_CB_CLIENT_CONTEXT_CONSTRUCT             =  1,
         LWS_EXT_CB_SERVER_CONTEXT_DESTRUCT              =  2,
         LWS_EXT_CB_CLIENT_CONTEXT_DESTRUCT              =  3,
         LWS_EXT_CB_CONSTRUCT                            =  4,
         LWS_EXT_CB_CLIENT_CONSTRUCT                     =  5,
         LWS_EXT_CB_CHECK_OK_TO_REALLY_CLOSE             =  6,
         LWS_EXT_CB_CHECK_OK_TO_PROPOSE_EXTENSION        =  7,
         LWS_EXT_CB_DESTROY                              =  8,
         LWS_EXT_CB_DESTROY_ANY_WSI_CLOSING              =  9,
         LWS_EXT_CB_ANY_WSI_ESTABLISHED                  = 10,
         LWS_EXT_CB_PACKET_RX_PREPARSE                   = 11,
         LWS_EXT_CB_PACKET_TX_PRESEND                    = 12,
         LWS_EXT_CB_PACKET_TX_DO_SEND                    = 13,
         LWS_EXT_CB_HANDSHAKE_REPLY_TX                   = 14,
         LWS_EXT_CB_FLUSH_PENDING_TX                     = 15,
         LWS_EXT_CB_EXTENDED_PAYLOAD_RX                  = 16,
         LWS_EXT_CB_CAN_PROXY_CLIENT_CONNECTION          = 17,
         LWS_EXT_CB_1HZ                                  = 18,
         LWS_EXT_CB_REQUEST_ON_WRITEABLE                 = 19,
         LWS_EXT_CB_IS_WRITEABLE                         = 20,
         LWS_EXT_CB_PAYLOAD_TX                           = 21,
         LWS_EXT_CB_PAYLOAD_RX                           = 22,
         LWS_EXT_CB_OPTION_DEFAULT                       = 23,
         LWS_EXT_CB_OPTION_SET                           = 24,
         LWS_EXT_CB_OPTION_CONFIRM                       = 25,
         LWS_EXT_CB_NAMED_OPTION_SET                     = 26,
 
         /****** add new things just above ---^ ******/
 };
 
 enum lws_ext_options_types {
         EXTARG_NONE, 
         EXTARG_DEC,  
         EXTARG_OPT_DEC 
         /* Add new things just above here ---^
          * This is part of the ABI, don't needlessly break compatibility */
 };
 
 struct lws_ext_options {
         const char *name; 
         enum lws_ext_options_types type; 
         /* Add new things just above here ---^
          * This is part of the ABI, don't needlessly break compatibility */
 };
 
 struct lws_ext_option_arg {
         const char *option_name; 
         int option_index; 
         const char *start; 
         int len; 
 };
 
 typedef int
 lws_extension_callback_function(struct lws_context *context,
                               const struct lws_extension *ext, struct lws *wsi,
                               enum lws_extension_callback_reasons reason,
                               void *user, void *in, size_t len);
 
 struct lws_extension {
         const char *name; 
         lws_extension_callback_function *callback; 
         const char *client_offer; 
         /* Add new things just above here ---^
          * This is part of the ABI, don't needlessly break compatibility */
 };
 
 LWS_VISIBLE LWS_EXTERN int
 lws_set_extension_option(struct lws *wsi, const char *ext_name,
                          const char *opt_name, const char *opt_val);
 
 #ifndef LWS_NO_EXTENSIONS
 /* lws_get_internal_extensions() - DEPRECATED
  *
  * \Deprecated There is no longer a set internal extensions table.  The table is provided
  * by user code along with application-specific settings.  See the test
  * client and server for how to do.
  */
 static LWS_INLINE LWS_WARN_DEPRECATED const struct lws_extension *
 lws_get_internal_extensions(void) { return NULL; }
 
 LWS_VISIBLE LWS_EXTERN int LWS_WARN_UNUSED_RESULT
 lws_ext_parse_options(const struct lws_extension *ext, struct lws *wsi,
                        void *ext_user, const struct lws_ext_options *opts,
                        const char *o, int len);
 #endif
 
 LWS_EXTERN
 int lws_extension_callback_pm_deflate(
         struct lws_context *context, const struct lws_extension *ext,
         struct lws *wsi, enum lws_extension_callback_reasons reason,
         void *user, void *in, size_t len);
 
 /*
  * The internal exts are part of the public abi
  * If we add more extensions, publish the callback here  ------v
  */
 
 
 struct lws_protocols {
         const char *name;
         lws_callback_function *callback;
         size_t per_session_data_size;
         size_t rx_buffer_size;
         unsigned int id;
         void *user; 
         /* Add new things just above here ---^
          * This is part of the ABI, don't needlessly break compatibility */
 };
 
 struct lws_vhost;
 
 LWS_VISIBLE LWS_EXTERN const struct lws_protocols *
 lws_vhost_name_to_protocol(struct lws_vhost *vh, const char *name);
 
 LWS_VISIBLE LWS_EXTERN const struct lws_protocols *
 lws_get_protocol(struct lws *wsi);
 
 LWS_VISIBLE LWS_EXTERN const struct lws_protocols *
 lws_protocol_get(struct lws *wsi) LWS_WARN_DEPRECATED;
 
 LWS_VISIBLE LWS_EXTERN void *
 lws_protocol_vh_priv_zalloc(struct lws_vhost *vhost, const struct lws_protocols *prot,
                             int size);
 
 LWS_VISIBLE LWS_EXTERN void *
 lws_protocol_vh_priv_get(struct lws_vhost *vhost, const struct lws_protocols *prot);
 
 LWS_VISIBLE LWS_EXTERN int
 lws_finalize_startup(struct lws_context *context);
 
 #ifdef LWS_WITH_PLUGINS
 
 /* PLUGINS implies LIBUV */
 
 #define LWS_PLUGIN_API_MAGIC 180
 
 struct lws_plugin_capability {
         unsigned int api_magic; 
         const struct lws_protocols *protocols; 
         int count_protocols; 
         const struct lws_extension *extensions; 
         int count_extensions; 
 };
 
 typedef int (*lws_plugin_init_func)(struct lws_context *,
                                     struct lws_plugin_capability *);
 typedef int (*lws_plugin_destroy_func)(struct lws_context *);
 
 struct lws_plugin {
         struct lws_plugin *list; 
 #if (UV_VERSION_MAJOR > 0)
         uv_lib_t lib; 
 #else
         void *l; 
 #endif
         char name[64]; 
         struct lws_plugin_capability caps; 
 };
 
 #endif
 
 
 
 
 #define LWSGS_EMAIL_CONTENT_SIZE 16384
 
 /* SHA-1 binary and hexified versions */
 typedef struct { unsigned char bin[20]; } lwsgw_hash_bin;
 typedef struct { char id[41];  } lwsgw_hash;
 
 enum lwsgs_auth_bits {
         LWSGS_AUTH_LOGGED_IN = 1, 
         LWSGS_AUTH_ADMIN = 2,   
         LWSGS_AUTH_VERIFIED = 4,  
         LWSGS_AUTH_FORGOT_FLOW = 8,     
 };
 
 struct lws_session_info {
         char username[32]; 
         char email[100]; 
         char ip[72]; 
         unsigned int mask; 
         char session[42]; 
 };
 
 enum lws_gs_event {
         LWSGSE_CREATED, 
         LWSGSE_DELETED  
 };
 
 struct lws_gs_event_args {
         enum lws_gs_event event; 
         const char *username; 
         const char *email; 
 };
 
 
 
 
 /*
  * NOTE: These public enums are part of the abi.  If you want to add one,
  * add it at where specified so existing users are unaffected.
  */
 
 enum lws_context_options {
         LWS_SERVER_OPTION_REQUIRE_VALID_OPENSSL_CLIENT_CERT     = (1 << 1) |
                                                                   (1 << 12),
         LWS_SERVER_OPTION_SKIP_SERVER_CANONICAL_NAME            = (1 << 2),
         LWS_SERVER_OPTION_ALLOW_NON_SSL_ON_SSL_PORT             = (1 << 3) |
                                                                   (1 << 12),
         LWS_SERVER_OPTION_LIBEV                                 = (1 << 4),
         LWS_SERVER_OPTION_DISABLE_IPV6                          = (1 << 5),
         LWS_SERVER_OPTION_DISABLE_OS_CA_CERTS                   = (1 << 6),
         LWS_SERVER_OPTION_PEER_CERT_NOT_REQUIRED                = (1 << 7),
         LWS_SERVER_OPTION_VALIDATE_UTF8                         = (1 << 8),
         LWS_SERVER_OPTION_SSL_ECDH                              = (1 << 9) |
                                                                   (1 << 12),
         LWS_SERVER_OPTION_LIBUV                                 = (1 << 10),
         LWS_SERVER_OPTION_REDIRECT_HTTP_TO_HTTPS                = (1 << 11) |
                                                                   (1 << 12),
         LWS_SERVER_OPTION_DO_SSL_GLOBAL_INIT                    = (1 << 12),
         LWS_SERVER_OPTION_EXPLICIT_VHOSTS                       = (1 << 13),
         LWS_SERVER_OPTION_UNIX_SOCK                             = (1 << 14),
         LWS_SERVER_OPTION_STS                                   = (1 << 15),
         LWS_SERVER_OPTION_IPV6_V6ONLY_MODIFY                    = (1 << 16),
         LWS_SERVER_OPTION_IPV6_V6ONLY_VALUE                     = (1 << 17),
         LWS_SERVER_OPTION_UV_NO_SIGSEGV_SIGFPE_SPIN             = (1 << 18),
         /****** add new things just above ---^ ******/
 };
 
 #define lws_check_opt(c, f) (((c) & (f)) == (f))
 
 struct lws_context_creation_info {
         int port;
         const char *iface;
         const struct lws_protocols *protocols;
         const struct lws_extension *extensions;
         const struct lws_token_limits *token_limits;
         const char *ssl_private_key_password;
         const char *ssl_cert_filepath;
         const char *ssl_private_key_filepath;
         const char *ssl_ca_filepath;
         const char *ssl_cipher_list;
         const char *http_proxy_address;
         unsigned int http_proxy_port;
         int gid;
         int uid;
         unsigned int options;
         void *user;
         int ka_time;
         int ka_probes;
         int ka_interval;
 #ifdef LWS_OPENSSL_SUPPORT
         SSL_CTX *provided_client_ssl_ctx;
 #else /* maintain structure layout either way */
         void *provided_client_ssl_ctx; 
 #endif
 
         short max_http_header_data;
         short max_http_header_pool;
         unsigned int count_threads;
         unsigned int fd_limit_per_thread;
         unsigned int timeout_secs;
         const char *ecdh_curve;
         const char *vhost_name;
         const char * const *plugin_dirs;
         const struct lws_protocol_vhost_options *pvo;
         int keepalive_timeout;
         const char *log_filepath;
         const struct lws_http_mount *mounts;
         const char *server_string;
         unsigned int pt_serv_buf_size;
         unsigned int max_http_header_data2;
         long ssl_options_set;
         long ssl_options_clear;
         unsigned short ws_ping_pong_interval;
         const struct lws_protocol_vhost_options *headers;
         const struct lws_protocol_vhost_options *reject_service_keywords;
         /* Add new things just above here ---^
          * This is part of the ABI, don't needlessly break compatibility
          *
          * The below is to ensure later library versions with new
          * members added above will see 0 (default) even if the app
          * was not built against the newer headers.
          */
 
         void *_unused[8]; 
 };
 
 LWS_VISIBLE LWS_EXTERN struct lws_context *
 lws_create_context(struct lws_context_creation_info *info);
 
 LWS_VISIBLE LWS_EXTERN void
 lws_context_destroy(struct lws_context *context);
 
 LWS_VISIBLE LWS_EXTERN int
 lws_set_proxy(struct lws_vhost *vhost, const char *proxy);
 
 
 struct lws_vhost;
 
 LWS_EXTERN LWS_VISIBLE struct lws_vhost *
 lws_create_vhost(struct lws_context *context,
                  struct lws_context_creation_info *info);
 
 LWS_VISIBLE LWS_EXTERN int
 lwsws_get_config_globals(struct lws_context_creation_info *info, const char *d,
                          char **config_strings, int *len);
 
 LWS_VISIBLE LWS_EXTERN int
 lwsws_get_config_vhosts(struct lws_context *context,
                         struct lws_context_creation_info *info, const char *d,
                         char **config_strings, int *len);
 
 LWS_VISIBLE LWS_EXTERN struct lws_vhost *
 lws_vhost_get(struct lws *wsi) LWS_WARN_DEPRECATED;
 
 LWS_VISIBLE LWS_EXTERN struct lws_vhost *
 lws_get_vhost(struct lws *wsi);
 
 LWS_VISIBLE LWS_EXTERN int
 lws_json_dump_vhost(const struct lws_vhost *vh, char *buf, int len);
 
 LWS_VISIBLE LWS_EXTERN int
 lws_json_dump_context(const struct lws_context *context, char *buf, int len);
 
 LWS_VISIBLE LWS_EXTERN void *
 lws_context_user(struct lws_context *context);
 
 
 struct lws_protocol_vhost_options {
         const struct lws_protocol_vhost_options *next; 
         const struct lws_protocol_vhost_options *options; 
         const char *name; 
         const char *value; 
 };
 
 enum lws_mount_protocols {
         LWSMPRO_HTTP            = 0, 
         LWSMPRO_HTTPS           = 1, 
         LWSMPRO_FILE            = 2, 
         LWSMPRO_CGI             = 3, 
         LWSMPRO_REDIR_HTTP      = 4, 
         LWSMPRO_REDIR_HTTPS     = 5, 
         LWSMPRO_CALLBACK        = 6, 
 };
 
 struct lws_http_mount {
         const struct lws_http_mount *mount_next;
         const char *mountpoint;
         const char *origin;
         const char *def;
         const char *protocol;
         const char *basic_auth_login_file;
         const struct lws_protocol_vhost_options *cgienv;
         const struct lws_protocol_vhost_options *extra_mimetypes;
         const struct lws_protocol_vhost_options *interpret;
         int cgi_timeout;
         int cache_max_age;
         unsigned int auth_mask;
         unsigned int cache_reusable:1; 
         unsigned int cache_revalidate:1; 
         unsigned int cache_intermediaries:1; 
         unsigned char origin_protocol; 
         unsigned char mountpoint_len; 
 };
 
 
 enum lws_client_connect_ssl_connection_flags {
         LCCSCF_USE_SSL                          = (1 << 0),
         LCCSCF_ALLOW_SELFSIGNED                 = (1 << 1),
         LCCSCF_SKIP_SERVER_CERT_HOSTNAME_CHECK  = (1 << 2),
         LCCSCF_ALLOW_EXPIRED                    = (1 << 3)
 };
 
 struct lws_client_connect_info {
         struct lws_context *context;
         const char *address;
         int port;
         int ssl_connection;
         const char *path;
         const char *host;
         const char *origin;
         const char *protocol;
         int ietf_version_or_minus_one;
         void *userdata;
         const struct lws_extension *client_exts;
         const char *method;
         struct lws *parent_wsi;
         const char *uri_replace_from;
         const char *uri_replace_to;
         struct lws_vhost *vhost;
         struct lws **pwsi;
         /* Add new things just above here ---^
          * This is part of the ABI, don't needlessly break compatibility
          *
          * The below is to ensure later library versions with new
          * members added above will see 0 (default) even if the app
          * was not built against the newer headers.
          */
 
         void *_unused[4]; 
 };
 
 LWS_VISIBLE LWS_EXTERN struct lws *
 lws_client_connect_via_info(struct lws_client_connect_info * ccinfo);
 
 /* deprecated, use lws_client_connect_via_info() */
 LWS_VISIBLE LWS_EXTERN struct lws * LWS_WARN_UNUSED_RESULT
 lws_client_connect(struct lws_context *clients, const char *address,
                    int port, int ssl_connection, const char *path,
                    const char *host, const char *origin, const char *protocol,
                    int ietf_version_or_minus_one) LWS_WARN_DEPRECATED;
 /* deprecated, use lws_client_connect_via_info() */
 LWS_VISIBLE LWS_EXTERN struct lws * LWS_WARN_UNUSED_RESULT
 lws_client_connect_extended(struct lws_context *clients, const char *address,
                             int port, int ssl_connection, const char *path,
                             const char *host, const char *origin,
                             const char *protocol, int ietf_version_or_minus_one,
                             void *userdata) LWS_WARN_DEPRECATED;
 
 LWS_VISIBLE LWS_EXTERN int
 lws_init_vhost_client_ssl(const struct lws_context_creation_info *info,
                           struct lws_vhost *vhost);
 
 LWS_VISIBLE LWS_EXTERN int
 lws_http_client_read(struct lws *wsi, char **buf, int *len);
 
 LWS_VISIBLE LWS_EXTERN unsigned int
 lws_http_client_http_response(struct lws *wsi);
 
 LWS_VISIBLE LWS_EXTERN void
 lws_client_http_body_pending(struct lws *wsi, int something_left_to_send);
 
 
 
 LWS_VISIBLE LWS_EXTERN int
 lws_service(struct lws_context *context, int timeout_ms);
 
 LWS_VISIBLE LWS_EXTERN int
 lws_service_tsi(struct lws_context *context, int timeout_ms, int tsi);
 
 LWS_VISIBLE LWS_EXTERN void
 lws_cancel_service_pt(struct lws *wsi);
 
 LWS_VISIBLE LWS_EXTERN void
 lws_cancel_service(struct lws_context *context);
 
 LWS_VISIBLE LWS_EXTERN int
 lws_service_fd(struct lws_context *context, struct lws_pollfd *pollfd);
 
 LWS_VISIBLE LWS_EXTERN int
 lws_service_fd_tsi(struct lws_context *context, struct lws_pollfd *pollfd,
                    int tsi);
 
 LWS_VISIBLE LWS_EXTERN int
 lws_service_adjust_timeout(struct lws_context *context, int timeout_ms, int tsi);
 
 /* Backwards compatibility */
 #define lws_plat_service_tsi lws_service_tsi
 
 
 
 
 LWS_VISIBLE LWS_EXTERN const char *
 lws_get_mimetype(const char *file, const struct lws_http_mount *m);
 
 LWS_VISIBLE LWS_EXTERN int
 lws_serve_http_file(struct lws *wsi, const char *file, const char *content_type,
                     const char *other_headers, int other_headers_len);
 LWS_VISIBLE LWS_EXTERN int
 lws_serve_http_file_fragment(struct lws *wsi);
 
 
 enum http_status {
         HTTP_STATUS_OK                                          = 200,
         HTTP_STATUS_NO_CONTENT                                  = 204,
 
         HTTP_STATUS_MOVED_PERMANENTLY                           = 301,
         HTTP_STATUS_FOUND                                       = 302,
         HTTP_STATUS_SEE_OTHER                                   = 303,
 
         HTTP_STATUS_BAD_REQUEST                                 = 400,
         HTTP_STATUS_UNAUTHORIZED,
         HTTP_STATUS_PAYMENT_REQUIRED,
         HTTP_STATUS_FORBIDDEN,
         HTTP_STATUS_NOT_FOUND,
         HTTP_STATUS_METHOD_NOT_ALLOWED,
         HTTP_STATUS_NOT_ACCEPTABLE,
         HTTP_STATUS_PROXY_AUTH_REQUIRED,
         HTTP_STATUS_REQUEST_TIMEOUT,
         HTTP_STATUS_CONFLICT,
         HTTP_STATUS_GONE,
         HTTP_STATUS_LENGTH_REQUIRED,
         HTTP_STATUS_PRECONDITION_FAILED,
         HTTP_STATUS_REQ_ENTITY_TOO_LARGE,
         HTTP_STATUS_REQ_URI_TOO_LONG,
         HTTP_STATUS_UNSUPPORTED_MEDIA_TYPE,
         HTTP_STATUS_REQ_RANGE_NOT_SATISFIABLE,
         HTTP_STATUS_EXPECTATION_FAILED,
 
         HTTP_STATUS_INTERNAL_SERVER_ERROR                       = 500,
         HTTP_STATUS_NOT_IMPLEMENTED,
         HTTP_STATUS_BAD_GATEWAY,
         HTTP_STATUS_SERVICE_UNAVAILABLE,
         HTTP_STATUS_GATEWAY_TIMEOUT,
         HTTP_STATUS_HTTP_VERSION_NOT_SUPPORTED,
 };
 
 struct lws_process_html_args {
         char *p; 
         int len; 
         int max_len; 
         int final; 
 };
 
 typedef const char *(*lws_process_html_state_cb)(void *data, int index);
 
 struct lws_process_html_state {
         char *start; 
         char swallow[16]; 
         int pos; 
         void *data; 
         const char * const *vars; 
         int count_vars; 
         lws_process_html_state_cb replace; 
 };
 
 LWS_VISIBLE LWS_EXTERN int
 lws_chunked_html_process(struct lws_process_html_args *args,
                          struct lws_process_html_state *s);
 
 
 struct lws_tokens {
         char *token; 
         int token_len; 
 };
 
 /* enum lws_token_indexes
  * these have to be kept in sync with lextable.h / minilex.c
  *
  * NOTE: These public enums are part of the abi.  If you want to add one,
  * add it at where specified so existing users are unaffected.
  */
 enum lws_token_indexes {
         WSI_TOKEN_GET_URI                                       =  0,
         WSI_TOKEN_POST_URI                                      =  1,
         WSI_TOKEN_OPTIONS_URI                                   =  2,
         WSI_TOKEN_HOST                                          =  3,
         WSI_TOKEN_CONNECTION                                    =  4,
         WSI_TOKEN_UPGRADE                                       =  5,
         WSI_TOKEN_ORIGIN                                        =  6,
         WSI_TOKEN_DRAFT                                         =  7,
         WSI_TOKEN_CHALLENGE                                     =  8,
         WSI_TOKEN_EXTENSIONS                                    =  9,
         WSI_TOKEN_KEY1                                          = 10,
         WSI_TOKEN_KEY2                                          = 11,
         WSI_TOKEN_PROTOCOL                                      = 12,
         WSI_TOKEN_ACCEPT                                        = 13,
         WSI_TOKEN_NONCE                                         = 14,
         WSI_TOKEN_HTTP                                          = 15,
         WSI_TOKEN_HTTP2_SETTINGS                                = 16,
         WSI_TOKEN_HTTP_ACCEPT                                   = 17,
         WSI_TOKEN_HTTP_AC_REQUEST_HEADERS                       = 18,
         WSI_TOKEN_HTTP_IF_MODIFIED_SINCE                        = 19,
         WSI_TOKEN_HTTP_IF_NONE_MATCH                            = 20,
         WSI_TOKEN_HTTP_ACCEPT_ENCODING                          = 21,
         WSI_TOKEN_HTTP_ACCEPT_LANGUAGE                          = 22,
         WSI_TOKEN_HTTP_PRAGMA                                   = 23,
         WSI_TOKEN_HTTP_CACHE_CONTROL                            = 24,
         WSI_TOKEN_HTTP_AUTHORIZATION                            = 25,
         WSI_TOKEN_HTTP_COOKIE                                   = 26,
         WSI_TOKEN_HTTP_CONTENT_LENGTH                           = 27,
         WSI_TOKEN_HTTP_CONTENT_TYPE                             = 28,
         WSI_TOKEN_HTTP_DATE                                     = 29,
         WSI_TOKEN_HTTP_RANGE                                    = 30,
         WSI_TOKEN_HTTP_REFERER                                  = 31,
         WSI_TOKEN_KEY                                           = 32,
         WSI_TOKEN_VERSION                                       = 33,
         WSI_TOKEN_SWORIGIN                                      = 34,
 
         WSI_TOKEN_HTTP_COLON_AUTHORITY                          = 35,
         WSI_TOKEN_HTTP_COLON_METHOD                             = 36,
         WSI_TOKEN_HTTP_COLON_PATH                               = 37,
         WSI_TOKEN_HTTP_COLON_SCHEME                             = 38,
         WSI_TOKEN_HTTP_COLON_STATUS                             = 39,
 
         WSI_TOKEN_HTTP_ACCEPT_CHARSET                           = 40,
         WSI_TOKEN_HTTP_ACCEPT_RANGES                            = 41,
         WSI_TOKEN_HTTP_ACCESS_CONTROL_ALLOW_ORIGIN              = 42,
         WSI_TOKEN_HTTP_AGE                                      = 43,
         WSI_TOKEN_HTTP_ALLOW                                    = 44,
         WSI_TOKEN_HTTP_CONTENT_DISPOSITION                      = 45,
         WSI_TOKEN_HTTP_CONTENT_ENCODING                         = 46,
         WSI_TOKEN_HTTP_CONTENT_LANGUAGE                         = 47,
         WSI_TOKEN_HTTP_CONTENT_LOCATION                         = 48,
         WSI_TOKEN_HTTP_CONTENT_RANGE                            = 49,
         WSI_TOKEN_HTTP_ETAG                                     = 50,
         WSI_TOKEN_HTTP_EXPECT                                   = 51,
         WSI_TOKEN_HTTP_EXPIRES                                  = 52,
         WSI_TOKEN_HTTP_FROM                                     = 53,
         WSI_TOKEN_HTTP_IF_MATCH                                 = 54,
         WSI_TOKEN_HTTP_IF_RANGE                                 = 55,
         WSI_TOKEN_HTTP_IF_UNMODIFIED_SINCE                      = 56,
         WSI_TOKEN_HTTP_LAST_MODIFIED                            = 57,
         WSI_TOKEN_HTTP_LINK                                     = 58,
         WSI_TOKEN_HTTP_LOCATION                                 = 59,
         WSI_TOKEN_HTTP_MAX_FORWARDS                             = 60,
         WSI_TOKEN_HTTP_PROXY_AUTHENTICATE                       = 61,
         WSI_TOKEN_HTTP_PROXY_AUTHORIZATION                      = 62,
         WSI_TOKEN_HTTP_REFRESH                                  = 63,
         WSI_TOKEN_HTTP_RETRY_AFTER                              = 64,
         WSI_TOKEN_HTTP_SERVER                                   = 65,
         WSI_TOKEN_HTTP_SET_COOKIE                               = 66,
         WSI_TOKEN_HTTP_STRICT_TRANSPORT_SECURITY                = 67,
         WSI_TOKEN_HTTP_TRANSFER_ENCODING                        = 68,
         WSI_TOKEN_HTTP_USER_AGENT                               = 69,
         WSI_TOKEN_HTTP_VARY                                     = 70,
         WSI_TOKEN_HTTP_VIA                                      = 71,
         WSI_TOKEN_HTTP_WWW_AUTHENTICATE                         = 72,
 
         WSI_TOKEN_PATCH_URI                                     = 73,
         WSI_TOKEN_PUT_URI                                       = 74,
         WSI_TOKEN_DELETE_URI                                    = 75,
 
         WSI_TOKEN_HTTP_URI_ARGS                                 = 76,
         WSI_TOKEN_PROXY                                         = 77,
         WSI_TOKEN_HTTP_X_REAL_IP                                = 78,
         WSI_TOKEN_HTTP1_0                                       = 79,
 
         /****** add new things just above ---^ ******/
 
         /* use token storage to stash these internally, not for
          * user use */
 
         _WSI_TOKEN_CLIENT_SENT_PROTOCOLS,
         _WSI_TOKEN_CLIENT_PEER_ADDRESS,
         _WSI_TOKEN_CLIENT_URI,
         _WSI_TOKEN_CLIENT_HOST,
         _WSI_TOKEN_CLIENT_ORIGIN,
         _WSI_TOKEN_CLIENT_METHOD,
 
         /* always last real token index*/
         WSI_TOKEN_COUNT,
 
         /* parser state additions, no storage associated */
         WSI_TOKEN_NAME_PART,
         WSI_TOKEN_SKIPPING,
         WSI_TOKEN_SKIPPING_SAW_CR,
         WSI_PARSING_COMPLETE,
         WSI_INIT_TOKEN_MUXURL,
 };
 
 struct lws_token_limits {
         unsigned short token_limit[WSI_TOKEN_COUNT]; 
 };
 
 LWS_VISIBLE LWS_EXTERN const unsigned char *
 lws_token_to_string(enum lws_token_indexes token);
 
 
 LWS_VISIBLE LWS_EXTERN int LWS_WARN_UNUSED_RESULT
 lws_hdr_total_length(struct lws *wsi, enum lws_token_indexes h);
 
 LWS_VISIBLE LWS_EXTERN int LWS_WARN_UNUSED_RESULT
 lws_hdr_fragment_length(struct lws *wsi, enum lws_token_indexes h, int frag_idx);
 
 LWS_VISIBLE LWS_EXTERN int
 lws_hdr_copy(struct lws *wsi, char *dest, int len, enum lws_token_indexes h);
 
 LWS_VISIBLE LWS_EXTERN int
 lws_hdr_copy_fragment(struct lws *wsi, char *dest, int len,
                       enum lws_token_indexes h, int frag_idx);
 
 LWS_VISIBLE LWS_EXTERN const char *
 lws_get_urlarg_by_name(struct lws *wsi, const char *name, char *buf, int len);
 
 
 LWS_VISIBLE LWS_EXTERN int LWS_WARN_UNUSED_RESULT
 lws_add_http_header_status(struct lws *wsi,
                            unsigned int code, unsigned char **p,
                            unsigned char *end);
 LWS_VISIBLE LWS_EXTERN int LWS_WARN_UNUSED_RESULT
 lws_add_http_header_by_name(struct lws *wsi, const unsigned char *name,
                             const unsigned char *value, int length,
                             unsigned char **p, unsigned char *end);
 LWS_VISIBLE LWS_EXTERN int LWS_WARN_UNUSED_RESULT
 lws_add_http_header_by_token(struct lws *wsi, enum lws_token_indexes token,
                              const unsigned char *value, int length,
                              unsigned char **p, unsigned char *end);
 LWS_VISIBLE LWS_EXTERN int LWS_WARN_UNUSED_RESULT
 lws_add_http_header_content_length(struct lws *wsi,
                                    unsigned long content_length,
                                    unsigned char **p, unsigned char *end);
 LWS_VISIBLE LWS_EXTERN int LWS_WARN_UNUSED_RESULT
 lws_finalize_http_header(struct lws *wsi, unsigned char **p,
                          unsigned char *end);
 
 
 enum lws_spa_fileupload_states {
         LWS_UFS_CONTENT,
         LWS_UFS_FINAL_CONTENT,
         LWS_UFS_OPEN
 };
 
 typedef int (*lws_spa_fileupload_cb)(void *data, const char *name,
                         const char *filename, char *buf, int len,
                         enum lws_spa_fileupload_states state);
 
 struct lws_spa;
 
 LWS_VISIBLE LWS_EXTERN struct lws_spa *
 lws_spa_create(struct lws *wsi, const char * const *param_names,
                int count_params, int max_storage, lws_spa_fileupload_cb opt_cb,
                void *opt_data);
 
 LWS_VISIBLE LWS_EXTERN int
 lws_spa_process(struct lws_spa *spa, const char *in, int len);
 
 LWS_VISIBLE LWS_EXTERN int
 lws_spa_finalize(struct lws_spa *spa);
 
 LWS_VISIBLE LWS_EXTERN int
 lws_spa_get_length(struct lws_spa *spa, int n);
 
 LWS_VISIBLE LWS_EXTERN const char *
 lws_spa_get_string(struct lws_spa *spa, int n);
 
 LWS_VISIBLE LWS_EXTERN int
 lws_spa_destroy(struct lws_spa *spa);
 
 
 LWS_VISIBLE LWS_EXTERN const char *
 lws_urlencode(char *escaped, const char *string, int len);
 
 /*
  * URLDECODE 1 / 2
  *
  * This simple urldecode only operates until the first '\0' and requires the
  * data to exist all at once
  */
 LWS_VISIBLE LWS_EXTERN int
 lws_urldecode(char *string, const char *escaped, int len);
 
 LWS_VISIBLE LWS_EXTERN int
 lws_return_http_status(struct lws *wsi, unsigned int code,
                        const char *html_body);
 
 LWS_VISIBLE LWS_EXTERN int LWS_WARN_UNUSED_RESULT
 lws_http_redirect(struct lws *wsi, int code, const unsigned char *loc, int len,
                   unsigned char **p, unsigned char *end);
 
 LWS_VISIBLE LWS_EXTERN int LWS_WARN_UNUSED_RESULT
 lws_http_transaction_completed(struct lws *wsi);
 
 
 LWS_VISIBLE LWS_EXTERN const char *
 lws_sql_purify(char *escaped, const char *string, int len);
 
 LWS_VISIBLE LWS_EXTERN const char *
 lws_json_purify(char *escaped, const char *string, int len);
 
 
 #ifdef LWS_USE_LIBEV
 typedef void (lws_ev_signal_cb_t)(EV_P_ struct ev_signal *w, int revents);
 
 LWS_VISIBLE LWS_EXTERN int
 lws_ev_sigint_cfg(struct lws_context *context, int use_ev_sigint,
                   lws_ev_signal_cb_t *cb);
 
 LWS_VISIBLE LWS_EXTERN int
 lws_ev_initloop(struct lws_context *context, struct ev_loop *loop, int tsi);
 
 LWS_VISIBLE LWS_EXTERN void
 lws_ev_sigint_cb(struct ev_loop *loop, struct ev_signal *watcher, int revents);
 #endif /* LWS_USE_LIBEV */
 
 
 #ifdef LWS_USE_LIBUV
 LWS_VISIBLE LWS_EXTERN int
 lws_uv_sigint_cfg(struct lws_context *context, int use_uv_sigint,
                   uv_signal_cb cb);
 
 LWS_VISIBLE LWS_EXTERN void
 lws_libuv_run(const struct lws_context *context, int tsi);
 
 LWS_VISIBLE LWS_EXTERN void
 lws_libuv_stop(struct lws_context *context);
 
 LWS_VISIBLE LWS_EXTERN int
 lws_uv_initloop(struct lws_context *context, uv_loop_t *loop, int tsi);
 
 LWS_VISIBLE LWS_EXTERN uv_loop_t *
 lws_uv_getloop(struct lws_context *context, int tsi);
 
 LWS_VISIBLE LWS_EXTERN void
 lws_uv_sigint_cb(uv_signal_t *watcher, int signum);
 #endif /* LWS_USE_LIBUV */
 
 
 /*
  * NOTE: These public enums are part of the abi.  If you want to add one,
  * add it at where specified so existing users are unaffected.
  */
 enum pending_timeout {
         NO_PENDING_TIMEOUT                                      =  0,
         PENDING_TIMEOUT_AWAITING_PROXY_RESPONSE                 =  1,
         PENDING_TIMEOUT_AWAITING_CONNECT_RESPONSE               =  2,
         PENDING_TIMEOUT_ESTABLISH_WITH_SERVER                   =  3,
         PENDING_TIMEOUT_AWAITING_SERVER_RESPONSE                =  4,
         PENDING_TIMEOUT_AWAITING_PING                           =  5,
         PENDING_TIMEOUT_CLOSE_ACK                               =  6,
         PENDING_TIMEOUT_AWAITING_EXTENSION_CONNECT_RESPONSE     =  7,
         PENDING_TIMEOUT_SENT_CLIENT_HANDSHAKE                   =  8,
         PENDING_TIMEOUT_SSL_ACCEPT                              =  9,
         PENDING_TIMEOUT_HTTP_CONTENT                            = 10,
         PENDING_TIMEOUT_AWAITING_CLIENT_HS_SEND                 = 11,
         PENDING_FLUSH_STORED_SEND_BEFORE_CLOSE                  = 12,
         PENDING_TIMEOUT_SHUTDOWN_FLUSH                          = 13,
         PENDING_TIMEOUT_CGI                                     = 14,
         PENDING_TIMEOUT_HTTP_KEEPALIVE_IDLE                     = 15,
         PENDING_TIMEOUT_WS_PONG_CHECK_SEND_PING                 = 16,
         PENDING_TIMEOUT_WS_PONG_CHECK_GET_PONG                  = 17,
         PENDING_TIMEOUT_CLIENT_ISSUE_PAYLOAD                    = 18,
 
         /****** add new things just above ---^ ******/
 };
 
 LWS_VISIBLE LWS_EXTERN void
 lws_set_timeout(struct lws *wsi, enum pending_timeout reason, int secs);
 
 #if !defined(LWS_SIZEOFPTR)
 #define LWS_SIZEOFPTR (sizeof (void *))
 #endif
 #if !defined(u_int64_t)
 #define u_int64_t unsigned long long
 #endif
 
 #if defined(__x86_64__)
 #define _LWS_PAD_SIZE 16        /* Intel recommended for best performance */
 #else
 #define _LWS_PAD_SIZE LWS_SIZEOFPTR   /* Size of a pointer on the target arch */
 #endif
 #define _LWS_PAD(n) (((n) % _LWS_PAD_SIZE) ? \
                 ((n) + (_LWS_PAD_SIZE - ((n) % _LWS_PAD_SIZE))) : (n))
 #define LWS_PRE _LWS_PAD(4 + 10)
 /* used prior to 1.7 and retained for backward compatibility */
 #define LWS_SEND_BUFFER_PRE_PADDING LWS_PRE
 #define LWS_SEND_BUFFER_POST_PADDING 0
 
 /*
  * NOTE: These public enums are part of the abi.  If you want to add one,
  * add it at where specified so existing users are unaffected.
  */
 enum lws_write_protocol {
         LWS_WRITE_TEXT                                          = 0,
         LWS_WRITE_BINARY                                        = 1,
         LWS_WRITE_CONTINUATION                                  = 2,
         LWS_WRITE_HTTP                                          = 3,
         /* LWS_WRITE_CLOSE is handled by lws_close_reason() */
         LWS_WRITE_PING                                          = 5,
         LWS_WRITE_PONG                                          = 6,
 
         /* Same as write_http but we know this write ends the transaction */
         LWS_WRITE_HTTP_FINAL                                    = 7,
 
         /* HTTP2 */
 
         LWS_WRITE_HTTP_HEADERS                                  = 8,
         /****** add new things just above ---^ ******/
 
         /* flags */
 
         LWS_WRITE_NO_FIN = 0x40,
         LWS_WRITE_CLIENT_IGNORE_XOR_MASK = 0x80
 };
 
 
 LWS_VISIBLE LWS_EXTERN int
 lws_write(struct lws *wsi, unsigned char *buf, size_t len,
           enum lws_write_protocol protocol);
 
 /* helper for case where buffer may be const */
 #define lws_write_http(wsi, buf, len) \
         lws_write(wsi, (unsigned char *)(buf), len, LWS_WRITE_HTTP)
 
 
 LWS_VISIBLE LWS_EXTERN int
 lws_callback_on_writable(struct lws *wsi);
 
 LWS_VISIBLE LWS_EXTERN int
 lws_callback_on_writable_all_protocol(const struct lws_context *context,
                                       const struct lws_protocols *protocol);
 
 LWS_VISIBLE LWS_EXTERN int
 lws_callback_on_writable_all_protocol_vhost(const struct lws_vhost *vhost,
                                       const struct lws_protocols *protocol);
 
 LWS_VISIBLE LWS_EXTERN int
 lws_callback_all_protocol(struct lws_context *context,
                           const struct lws_protocols *protocol, int reason);
 
 LWS_VISIBLE LWS_EXTERN int
 lws_callback_all_protocol_vhost(struct lws_vhost *vh,
                           const struct lws_protocols *protocol, int reason);
 
 LWS_VISIBLE LWS_EXTERN int
 lws_callback_vhost_protocols(struct lws *wsi, int reason, void *in, int len);
 
 LWS_VISIBLE LWS_EXTERN int
 lws_callback_http_dummy(struct lws *wsi, enum lws_callback_reasons reason,
                     void *user, void *in, size_t len);
 
 LWS_VISIBLE LWS_EXTERN int
 lws_get_socket_fd(struct lws *wsi);
 
 LWS_VISIBLE LWS_EXTERN size_t
 lws_get_peer_write_allowance(struct lws *wsi);
 
 LWS_VISIBLE LWS_EXTERN int
 lws_rx_flow_control(struct lws *wsi, int enable);
 
 LWS_VISIBLE LWS_EXTERN void
 lws_rx_flow_allow_all_protocol(const struct lws_context *context,
                                const struct lws_protocols *protocol);
 
 LWS_VISIBLE LWS_EXTERN size_t
 lws_remaining_packet_payload(struct lws *wsi);
 
 
 
 LWS_VISIBLE LWS_EXTERN struct lws *
 lws_adopt_socket(struct lws_context *context, lws_sockfd_type accept_fd);
 LWS_VISIBLE LWS_EXTERN struct lws *
 lws_adopt_socket_readbuf(struct lws_context *context, lws_sockfd_type accept_fd,
                 const char *readbuf, size_t len);
 
 
 LWS_VISIBLE LWS_EXTERN const char * LWS_WARN_UNUSED_RESULT
 lws_canonical_hostname(struct lws_context *context);
 
 LWS_VISIBLE LWS_EXTERN void
 lws_get_peer_addresses(struct lws *wsi, lws_sockfd_type fd, char *name,
                        int name_len, char *rip, int rip_len);
 
 LWS_VISIBLE LWS_EXTERN const char *
 lws_get_peer_simple(struct lws *wsi, char *name, int namelen);
 #ifndef LWS_WITH_ESP8266
 
 LWS_VISIBLE LWS_EXTERN int
 lws_interface_to_sa(int ipv6, const char *ifname, struct sockaddr_in *addr,
                     size_t addrlen);
 #endif
 
 
 LWS_VISIBLE LWS_EXTERN int
 lws_snprintf(char *str, size_t size, const char *format, ...);
 
 LWS_VISIBLE LWS_EXTERN int
 lws_get_random(struct lws_context *context, void *buf, int len);
 LWS_VISIBLE LWS_EXTERN int LWS_WARN_UNUSED_RESULT
 lws_daemonize(const char *_lock_path);
 LWS_VISIBLE LWS_EXTERN const char * LWS_WARN_UNUSED_RESULT
 lws_get_library_version(void);
 
 LWS_VISIBLE LWS_EXTERN void *
 lws_wsi_user(struct lws *wsi);
 
 LWS_VISIBLE LWS_EXTERN int LWS_WARN_UNUSED_RESULT
 lws_parse_uri(char *p, const char **prot, const char **ads, int *port,
               const char **path);
 
 LWS_VISIBLE LWS_EXTERN unsigned long
 lws_now_secs(void);
 
 LWS_VISIBLE LWS_EXTERN struct lws_context * LWS_WARN_UNUSED_RESULT
 lws_get_context(const struct lws *wsi);
 
 LWS_VISIBLE LWS_EXTERN int LWS_WARN_UNUSED_RESULT
 lws_get_count_threads(struct lws_context *context);
 
 LWS_VISIBLE LWS_EXTERN struct lws * LWS_WARN_UNUSED_RESULT
 lws_get_parent(const struct lws *wsi);
 
 LWS_VISIBLE LWS_EXTERN struct lws * LWS_WARN_UNUSED_RESULT
 lws_get_child(const struct lws *wsi);
 
 
 /*
  * \deprecated DEPRECATED Note: this is not normally needed as a user api.
  * It's provided in case it is
  * useful when integrating with other app poll loop service code.
  */
 LWS_VISIBLE LWS_EXTERN int
 lws_read(struct lws *wsi, unsigned char *buf, size_t len);
 
 LWS_VISIBLE LWS_EXTERN void
 lws_set_allocator(void *(*realloc)(void *ptr, size_t size));
 
 
 LWS_VISIBLE LWS_EXTERN int LWS_WARN_UNUSED_RESULT
 lws_send_pipe_choked(struct lws *wsi);
 
 LWS_VISIBLE LWS_EXTERN int
 lws_is_final_fragment(struct lws *wsi);
 
 LWS_VISIBLE LWS_EXTERN unsigned char
 lws_get_reserved_bits(struct lws *wsi);
 
 LWS_VISIBLE LWS_EXTERN int LWS_WARN_UNUSED_RESULT
 lws_partial_buffered(struct lws *wsi);
 
 LWS_VISIBLE LWS_EXTERN int LWS_WARN_UNUSED_RESULT
 lws_frame_is_binary(struct lws *wsi);
 
 LWS_VISIBLE LWS_EXTERN int
 lws_is_ssl(struct lws *wsi);
 LWS_VISIBLE LWS_EXTERN int
 lws_is_cgi(struct lws *wsi);
 
 
 #ifdef LWS_SHA1_USE_OPENSSL_NAME
 #define lws_SHA1 SHA1
 #else
 
 LWS_VISIBLE LWS_EXTERN unsigned char *
 lws_SHA1(const unsigned char *d, size_t n, unsigned char *md);
 #endif
 
 LWS_VISIBLE LWS_EXTERN int
 lws_b64_encode_string(const char *in, int in_len, char *out, int out_size);
 LWS_VISIBLE LWS_EXTERN int
 lws_b64_decode_string(const char *in, char *out, int out_size);
 
 
 #ifdef LWS_WITH_CGI
 enum lws_enum_stdinouterr {
         LWS_STDIN = 0,
         LWS_STDOUT = 1,
         LWS_STDERR = 2,
 };
 
 enum lws_cgi_hdr_state {
         LCHS_HEADER,
         LCHS_CR1,
         LCHS_LF1,
         LCHS_CR2,
         LCHS_LF2,
         LHCS_PAYLOAD,
         LCHS_SINGLE_0A,
 };
 
 struct lws_cgi_args {
         struct lws **stdwsi; 
         enum lws_enum_stdinouterr ch; 
         unsigned char *data; 
         enum lws_cgi_hdr_state hdr_state; 
         int len; 
 };
 
 
 LWS_VISIBLE LWS_EXTERN int
 lws_cgi(struct lws *wsi, const char * const *exec_array,
         int script_uri_path_len, int timeout_secs,
         const struct lws_protocol_vhost_options *mp_cgienv);
 
 LWS_VISIBLE LWS_EXTERN int
 lws_cgi_write_split_stdout_headers(struct lws *wsi);
 
 LWS_VISIBLE LWS_EXTERN int
 lws_cgi_kill(struct lws *wsi);
 #endif
 
 
 
 struct lws_plat_file_ops {
         lws_filefd_type (*open)(struct lws *wsi, const char *filename,
                                 unsigned long *filelen, int flags);
         int (*close)(struct lws *wsi, lws_filefd_type fd);
         unsigned long (*seek_cur)(struct lws *wsi, lws_filefd_type fd,
                                   long offset_from_cur_pos);
         int (*read)(struct lws *wsi, lws_filefd_type fd, unsigned long *amount,
                     unsigned char *buf, unsigned long len);
         int (*write)(struct lws *wsi, lws_filefd_type fd, unsigned long *amount,
                      unsigned char *buf, unsigned long len);
         /* Add new things just above here ---^
          * This is part of the ABI, don't needlessly break compatibility */
 };
 
 LWS_VISIBLE LWS_EXTERN struct lws_plat_file_ops * LWS_WARN_UNUSED_RESULT
 lws_get_fops(struct lws_context *context);
 
 static LWS_INLINE lws_filefd_type LWS_WARN_UNUSED_RESULT
 lws_plat_file_open(struct lws *wsi, const char *filename,
                    unsigned long *filelen, int flags)
 {
         return lws_get_fops(lws_get_context(wsi))->open(wsi, filename,
                                                     filelen, flags);
 }
 
 static LWS_INLINE int
 lws_plat_file_close(struct lws *wsi, lws_filefd_type fd)
 {
         return lws_get_fops(lws_get_context(wsi))->close(wsi, fd);
 }
 
 static LWS_INLINE unsigned long
 lws_plat_file_seek_cur(struct lws *wsi, lws_filefd_type fd, long offset)
 {
         return lws_get_fops(lws_get_context(wsi))->seek_cur(wsi, fd, offset);
 }
 static LWS_INLINE int LWS_WARN_UNUSED_RESULT
 lws_plat_file_read(struct lws *wsi, lws_filefd_type fd, unsigned long *amount,
                    unsigned char *buf, unsigned long len)
 {
         return lws_get_fops(lws_get_context(wsi))->read(wsi, fd, amount, buf,
                                                         len);
 }
 static LWS_INLINE int LWS_WARN_UNUSED_RESULT
 lws_plat_file_write(struct lws *wsi, lws_filefd_type fd, unsigned long *amount,
                     unsigned char *buf, unsigned long len)
 {
         return lws_get_fops(lws_get_context(wsi))->write(wsi, fd, amount, buf,
                                                          len);
 }
 
 #ifdef LWS_WITH_SMTP
 
 enum lwsgs_smtp_states {
         LGSSMTP_IDLE, 
         LGSSMTP_CONNECTING, 
         LGSSMTP_CONNECTED, 
         LGSSMTP_SENT_HELO, 
         LGSSMTP_SENT_FROM, 
         LGSSMTP_SENT_TO, 
         LGSSMTP_SENT_DATA, 
         LGSSMTP_SENT_BODY, 
         LGSSMTP_SENT_QUIT, 
 };
 
 struct lws_email {
         void *data;
         uv_loop_t *loop;
         char email_smtp_ip[32]; 
         char email_helo[32];    
         char email_from[100];   
         char email_to[100];     
         unsigned int max_content_size;
         /* Fill all the callbacks before init */
 
         int (*on_next)(struct lws_email *email);
         int (*on_sent)(struct lws_email *email);
         int (*on_get_body)(struct lws_email *email, char *buf, int len);
         /* private things */
         uv_timer_t timeout_email; 
         enum lwsgs_smtp_states estate; 
         uv_connect_t email_connect_req; 
         uv_tcp_t email_client; 
         time_t email_connect_started; 
         char email_buf[256]; 
         char *content; 
 };
 
 LWS_VISIBLE LWS_EXTERN int
 lws_email_init(struct lws_email *email, uv_loop_t *loop, int max_content);
 
 LWS_VISIBLE LWS_EXTERN void
 lws_email_check(struct lws_email *email);
 LWS_VISIBLE LWS_EXTERN void
 lws_email_destroy(struct lws_email *email);
 
 #endif
 
 
 #ifdef __cplusplus
 }
 #endif
 
 #endif

+Go to the documentation of this file. /*
  * libwebsockets - small server side websockets and web server implementation
  *
  * Copyright (C) 2010-2016 Andy Green <andy@warmcat.com>
  *
  *  This library is free software; you can redistribute it and/or
  *  modify it under the terms of the GNU Lesser General Public
  *  License as published by the Free Software Foundation:
  *  version 2.1 of the License.
  *
  *  This library is distributed in the hope that it will be useful,
  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  *  Lesser General Public License for more details.
  *
  *  You should have received a copy of the GNU Lesser General Public
  *  License along with this library; if not, write to the Free Software
  *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
  *  MA  02110-1301  USA
  */
 
 #ifndef LIBWEBSOCKET_H_3060898B846849FF9F88F5DB59B5950C
 #define LIBWEBSOCKET_H_3060898B846849FF9F88F5DB59B5950C
 
 #ifdef __cplusplus
 #include <cstddef>
 #include <cstdarg>
 #ifdef MBED_OPERATORS
 #include "mbed-drivers/mbed.h"
 #include "sal-iface-eth/EthernetInterface.h"
 #include "sockets/TCPListener.h"
 #include "sal-stack-lwip/lwipv4_init.h"
 
 namespace {
 }
 using namespace mbed::Sockets::v0;
 
 
 struct sockaddr_in;
 struct lws;
 
 class lws_conn {
         public:
         lws_conn():
                 ts(NULL),
                 wsi(NULL),
                 writeable(1),
                 awaiting_on_writeable(0)
         {
         }
 
 public:
         void set_wsi(struct lws *_wsi) { wsi = _wsi; }
         int actual_onRX(Socket *s);
         void onRX(Socket *s);
         void onError(Socket *s, socket_error_t err);
         void onDisconnect(TCPStream *s);
         void onSent(Socket *s, uint16_t len);
         void serialized_writeable(struct lws *wsi);
 
 public:
         TCPStream *ts;
 
 public:
         struct lws *wsi;
         char writeable;
         char awaiting_on_writeable;
 };
 
 class lws_conn_listener : lws_conn {
 public:
         lws_conn_listener():
                 srv(SOCKET_STACK_LWIP_IPV4)
         {
                 srv.setOnError(TCPStream::ErrorHandler_t(this,
                                 &lws_conn_listener::onError));
         }
 
         void start(const uint16_t port); 
 protected:
         void onRX(Socket *s); 
         void onError(Socket *s, socket_error_t err); 
         void onIncoming(TCPListener *s, void *impl); 
         void onDisconnect(TCPStream *s); 
 public:
         TCPListener srv;
 };
 
 #endif
 
 extern "C" {
 #else
 #include <stdarg.h>
 #endif
 
 #if defined(MBED_OPERATORS) || defined(LWS_WITH_ESP8266)
 struct sockaddr_in;
 #define LWS_POSIX 0
 #else
 #define LWS_POSIX 1
 #endif
 
 #include "lws_config.h"
 
 #if defined(WIN32) || defined(_WIN32)
 #ifndef WIN32_LEAN_AND_MEAN
 #define WIN32_LEAN_AND_MEAN
 #endif
 
 #include <winsock2.h>
 #include <ws2tcpip.h>
 #include <stddef.h>
 #include <basetsd.h>
 #ifndef _WIN32_WCE
 #include <fcntl.h>
 #else
 #define _O_RDONLY       0x0000
 #define O_RDONLY        _O_RDONLY
 #endif
 
 // Visual studio older than 2015 and WIN_CE has only _stricmp
 #if (defined(_MSC_VER) && _MSC_VER < 1900) || defined(_WIN32_WCE)
 #define strcasecmp _stricmp
 #elif !defined(__MINGW32__)
 #define strcasecmp stricmp
 #endif
 #define getdtablesize() 30000
 
 #define LWS_INLINE __inline
 #define LWS_VISIBLE
 #define LWS_WARN_UNUSED_RESULT
 #define LWS_WARN_DEPRECATED
 
 #ifdef LWS_DLL
 #ifdef LWS_INTERNAL
 #define LWS_EXTERN extern __declspec(dllexport)
 #else
 #define LWS_EXTERN extern __declspec(dllimport)
 #endif
 #else
 #define LWS_EXTERN
 #endif
 
 #define LWS_INVALID_FILE INVALID_HANDLE_VALUE
 #define LWS_O_RDONLY _O_RDONLY
 
 #if !defined(__MINGW32__) && (!defined(_MSC_VER) || _MSC_VER < 1900) /* Visual Studio 2015 already defines this in <stdio.h> */
 #define lws_snprintf _snprintf
 #endif
 
 #ifndef __func__
 #define __func__ __FUNCTION__
 #endif
 
 #else /* NOT WIN32 */
 #include <unistd.h>
 
 #if defined(__NetBSD__) || defined(__FreeBSD__)
 #include <netinet/in.h>
 #endif
 
 #define LWS_INLINE inline
 #define LWS_O_RDONLY O_RDONLY
 
 #if !defined(MBED_OPERATORS) && !defined(LWS_WITH_ESP8266)
 #include <poll.h>
 #include <netdb.h>
 #define LWS_INVALID_FILE -1
 #else
 #define getdtablesize() (20)
 #define LWS_INVALID_FILE NULL
 #endif
 
 #if defined(__GNUC__)
 
 /* warn_unused_result attribute only supported by GCC 3.4 or later */
 #if __GNUC__ >= 4 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 4)
 #define LWS_WARN_UNUSED_RESULT __attribute__((warn_unused_result))
 #else
 #define LWS_WARN_UNUSED_RESULT
 #endif
 
 #define LWS_VISIBLE __attribute__((visibility("default")))
 #define LWS_WARN_DEPRECATED __attribute__ ((deprecated))
 #else
 #define LWS_VISIBLE
 #define LWS_WARN_UNUSED_RESULT
 #define LWS_WARN_DEPRECATED
 #endif
 
 #if defined(__ANDROID__)
 #include <unistd.h>
 #define getdtablesize() sysconf(_SC_OPEN_MAX)
 #endif
 
 #endif
 
 #ifdef LWS_USE_LIBEV
 #include <ev.h>
 #endif /* LWS_USE_LIBEV */
 #ifdef LWS_USE_LIBUV
 #include <uv.h>
 #ifdef LWS_HAVE_UV_VERSION_H
 #include <uv-version.h>
 #endif
 #endif /* LWS_USE_LIBUV */
 
 #ifndef LWS_EXTERN
 #define LWS_EXTERN extern
 #endif
 
 #ifdef _WIN32
 #define random rand
 #else
 #include <sys/time.h>
 #include <unistd.h>
 #endif
 
 #ifdef LWS_OPENSSL_SUPPORT
 
 #ifdef USE_WOLFSSL
 #ifdef USE_OLD_CYASSL
 #include <cyassl/openssl/ssl.h>
 #include <cyassl/error-ssl.h>
 #else
 #include <wolfssl/openssl/ssl.h>
 #include <wolfssl/error-ssl.h>
 #endif /* not USE_OLD_CYASSL */
 #else
 #if defined(LWS_USE_POLARSSL)
 #include <polarssl/ssl.h>
 struct lws_polarssl_context {
         x509_crt ca; 
         x509_crt certificate; 
         rsa_context key; 
 };
 typedef struct lws_polarssl_context SSL_CTX;
 typedef ssl_context SSL;
 #else
 #if defined(LWS_USE_MBEDTLS)
 #include <mbedtls/ssl.h>
 #else
 #include <openssl/ssl.h>
 #include <openssl/err.h>
 #endif /* not USE_MBEDTLS */
 #endif /* not USE_POLARSSL */
 #endif /* not USE_WOLFSSL */
 #endif
 
 
 #define CONTEXT_PORT_NO_LISTEN -1
 
 
 enum lws_log_levels {
         LLL_ERR = 1 << 0,
         LLL_WARN = 1 << 1,
         LLL_NOTICE = 1 << 2,
         LLL_INFO = 1 << 3,
         LLL_DEBUG = 1 << 4,
         LLL_PARSER = 1 << 5,
         LLL_HEADER = 1 << 6,
         LLL_EXT = 1 << 7,
         LLL_CLIENT = 1 << 8,
         LLL_LATENCY = 1 << 9,
 
         LLL_COUNT = 10 /* set to count of valid flags */
 };
 
 LWS_VISIBLE LWS_EXTERN void _lws_log(int filter, const char *format, ...);
 LWS_VISIBLE LWS_EXTERN void _lws_logv(int filter, const char *format, va_list vl);
 LWS_VISIBLE LWS_EXTERN int
 lwsl_timestamp(int level, char *p, int len);
 
 #define lwsl_err(...) _lws_log(LLL_ERR, __VA_ARGS__)
 
 #if !defined(LWS_WITH_NO_LOGS)
 /* notice, warn and log are always compiled in */
 #define lwsl_warn(...) _lws_log(LLL_WARN, __VA_ARGS__)
 #define lwsl_notice(...) _lws_log(LLL_NOTICE, __VA_ARGS__)
 #endif
 /*
  *  weaker logging can be deselected at configure time using --disable-debug
  *  that gets rid of the overhead of checking while keeping _warn and _err
  *  active
  */
 
 #if defined(LWS_WITH_ESP8266)
 #undef _DEBUG
 #endif
 
 #ifdef _DEBUG
 #if defined(LWS_WITH_NO_LOGS)
 /* notice, warn and log are always compiled in */
 //#define lwsl_err(...) _lws_log(LLL_ERR, __VA_ARGS__)
 #define lwsl_warn(...) _lws_log(LLL_WARN, __VA_ARGS__)
 #define lwsl_notice(...) _lws_log(LLL_NOTICE, __VA_ARGS__)
 #endif
 #define lwsl_info(...) _lws_log(LLL_INFO, __VA_ARGS__)
 #define lwsl_debug(...) _lws_log(LLL_DEBUG, __VA_ARGS__)
 #define lwsl_parser(...) _lws_log(LLL_PARSER, __VA_ARGS__)
 #define lwsl_header(...)  _lws_log(LLL_HEADER, __VA_ARGS__)
 #define lwsl_ext(...)  _lws_log(LLL_EXT, __VA_ARGS__)
 #define lwsl_client(...) _lws_log(LLL_CLIENT, __VA_ARGS__)
 #define lwsl_latency(...) _lws_log(LLL_LATENCY, __VA_ARGS__)
 
 LWS_VISIBLE LWS_EXTERN void lwsl_hexdump(void *buf, size_t len);
 
 #else /* no debug */
 #if defined(LWS_WITH_NO_LOGS)
 //#define lwsl_err(...) do {} while(0)
 #define lwsl_warn(...) do {} while(0)
 #define lwsl_notice(...) do {} while(0)
 #endif
 #define lwsl_info(...) do {} while(0)
 #define lwsl_debug(...) do {} while(0)
 #define lwsl_parser(...) do {} while(0)
 #define lwsl_header(...) do {} while(0)
 #define lwsl_ext(...) do {} while(0)
 #define lwsl_client(...) do {} while(0)
 #define lwsl_latency(...) do {} while(0)
 #define lwsl_hexdump(a, b)
 
 #endif
 
 LWS_VISIBLE LWS_EXTERN void
 lws_set_log_level(int level,
                   void (*log_emit_function)(int level, const char *line));
 
 LWS_VISIBLE LWS_EXTERN void
 lwsl_emit_syslog(int level, const char *line);
 
 
 
 #include <stddef.h>
 
 #ifndef lws_container_of
 #define lws_container_of(P,T,M) ((T *)((char *)(P) - offsetof(T, M)))
 #endif
 
 
 struct lws;
 #ifndef ARRAY_SIZE
 #define ARRAY_SIZE(x) (sizeof(x) / sizeof(x[0]))
 #endif
 
 /* api change list for user code to test against */
 
 #define LWS_FEATURE_SERVE_HTTP_FILE_HAS_OTHER_HEADERS_ARG
 
 /* the struct lws_protocols has the id field present */
 #define LWS_FEATURE_PROTOCOLS_HAS_ID_FIELD
 
 /* you can call lws_get_peer_write_allowance */
 #define LWS_FEATURE_PROTOCOLS_HAS_PEER_WRITE_ALLOWANCE
 
 /* extra parameter introduced in 917f43ab821 */
 #define LWS_FEATURE_SERVE_HTTP_FILE_HAS_OTHER_HEADERS_LEN
 
 /* File operations stuff exists */
 #define LWS_FEATURE_FOPS
 
 
 #if defined(_WIN32)
 typedef SOCKET lws_sockfd_type;
 typedef HANDLE lws_filefd_type;
 #define lws_sockfd_valid(sfd) (!!sfd)
 struct lws_pollfd {
         lws_sockfd_type fd; 
         SHORT events; 
         SHORT revents; 
 };
 #define LWS_POLLHUP (FD_CLOSE)
 #define LWS_POLLIN (FD_READ | FD_ACCEPT)
 #define LWS_POLLOUT (FD_WRITE)
 #else
 
 #if defined(MBED_OPERATORS)
 /* it's a class lws_conn * */
 typedef void * lws_sockfd_type;
 typedef void * lws_filefd_type;
 #define lws_sockfd_valid(sfd) (!!sfd)
 struct pollfd {
         lws_sockfd_type fd; 
         short events; 
         short revents; 
 };
 #define POLLIN          0x0001
 #define POLLPRI         0x0002
 #define POLLOUT         0x0004
 #define POLLERR         0x0008
 #define POLLHUP         0x0010
 #define POLLNVAL        0x0020
 
 struct lws;
 
 void * mbed3_create_tcp_stream_socket(void);
 void mbed3_delete_tcp_stream_socket(void *sockfd);
 void mbed3_tcp_stream_bind(void *sock, int port, struct lws *);
 void mbed3_tcp_stream_accept(void *sock, struct lws *);
 #else
 #if defined(LWS_WITH_ESP8266)
 
 #include <user_interface.h>
 #include <espconn.h>
 
 typedef struct espconn * lws_sockfd_type;
 typedef void * lws_filefd_type;
 #define lws_sockfd_valid(sfd) (!!sfd)
 struct pollfd {
         lws_sockfd_type fd; 
         short events; 
         short revents; 
 };
 #define POLLIN          0x0001
 #define POLLPRI         0x0002
 #define POLLOUT         0x0004
 #define POLLERR         0x0008
 #define POLLHUP         0x0010
 #define POLLNVAL        0x0020
 
 struct lws_vhost;
 
 lws_sockfd_type esp8266_create_tcp_listen_socket(struct lws_vhost *vh);
 void esp8266_tcp_stream_accept(lws_sockfd_type fd, struct lws *wsi);
 
 #include <os_type.h>
 #include <osapi.h>
 #include "ets_sys.h"
 
 int ets_snprintf(char *str, size_t size, const char *format, ...);
 #define snprintf  ets_snprintf
 
 typedef os_timer_t uv_timer_t;
 typedef void uv_cb_t(uv_timer_t *);
 
 void os_timer_disarm(void *);
 void os_timer_setfn(os_timer_t *, os_timer_func_t *, void *);
 
 void ets_timer_arm_new(os_timer_t *, int, int, int);
 
 //void os_timer_arm(os_timer_t *, int, int);
 
 #define UV_VERSION_MAJOR 1
 
 #define lws_uv_getloop(a, b) (NULL)
 
 static inline void uv_timer_init(void *l, uv_timer_t *t)
 {
         (void)l;
         memset(t, 0, sizeof(*t));
         os_timer_disarm(t);
 }
 
 static inline void uv_timer_start(uv_timer_t *t, uv_cb_t *cb, int first, int rep)
 {
         os_timer_setfn(t, (os_timer_func_t *)cb, t);
         /* ms, repeat */
         os_timer_arm(t, first, !!rep);
 }
 
 static inline void uv_timer_stop(uv_timer_t *t)
 {
         os_timer_disarm(t);
 }
 
 #else
 typedef int lws_sockfd_type;
 typedef int lws_filefd_type;
 #define lws_sockfd_valid(sfd) (sfd >= 0)
 #endif
 #endif
 
 #define lws_pollfd pollfd
 #define LWS_POLLHUP (POLLHUP|POLLERR)
 #define LWS_POLLIN (POLLIN)
 #define LWS_POLLOUT (POLLOUT)
 #endif
 
 struct lws_pollargs {
         lws_sockfd_type fd;     
         int events;             
         int prev_events;        
 };
 
 struct lws_tokens;
 struct lws_token_limits;
 
 
 /*
  * NOTE: These public enums are part of the abi.  If you want to add one,
  * add it at where specified so existing users are unaffected.
  */
 enum lws_close_status {
         LWS_CLOSE_STATUS_NOSTATUS                               =    0,
         LWS_CLOSE_STATUS_NORMAL                                 = 1000,
         LWS_CLOSE_STATUS_GOINGAWAY                              = 1001,
         LWS_CLOSE_STATUS_PROTOCOL_ERR                           = 1002,
         LWS_CLOSE_STATUS_UNACCEPTABLE_OPCODE                    = 1003,
         LWS_CLOSE_STATUS_RESERVED                               = 1004,
         LWS_CLOSE_STATUS_NO_STATUS                              = 1005,
         LWS_CLOSE_STATUS_ABNORMAL_CLOSE                         = 1006,
         LWS_CLOSE_STATUS_INVALID_PAYLOAD                        = 1007,
         LWS_CLOSE_STATUS_POLICY_VIOLATION                       = 1008,
         LWS_CLOSE_STATUS_MESSAGE_TOO_LARGE                      = 1009,
         LWS_CLOSE_STATUS_EXTENSION_REQUIRED                     = 1010,
         LWS_CLOSE_STATUS_UNEXPECTED_CONDITION                   = 1011,
         LWS_CLOSE_STATUS_TLS_FAILURE                            = 1015,
         /****** add new things just above ---^ ******/
 
         LWS_CLOSE_STATUS_NOSTATUS_CONTEXT_DESTROY               = 9999,
 };
 
 LWS_VISIBLE LWS_EXTERN void
 lws_close_reason(struct lws *wsi, enum lws_close_status status,
                  unsigned char *buf, size_t len);
 
 
 struct lws;
 struct lws_context;
 /* needed even with extensions disabled for create context */
 struct lws_extension;
 
 
 
 /*
  * NOTE: These public enums are part of the abi.  If you want to add one,
  * add it at where specified so existing users are unaffected.
  */
 enum lws_callback_reasons {
         LWS_CALLBACK_ESTABLISHED                                =  0,
         LWS_CALLBACK_CLIENT_CONNECTION_ERROR                    =  1,
         LWS_CALLBACK_CLIENT_FILTER_PRE_ESTABLISH                =  2,
         LWS_CALLBACK_CLIENT_ESTABLISHED                         =  3,
         LWS_CALLBACK_CLOSED                                     =  4,
         LWS_CALLBACK_CLOSED_HTTP                                =  5,
         LWS_CALLBACK_RECEIVE                                    =  6,
         LWS_CALLBACK_RECEIVE_PONG                               =  7,
         LWS_CALLBACK_CLIENT_RECEIVE                             =  8,
         LWS_CALLBACK_CLIENT_RECEIVE_PONG                        =  9,
         LWS_CALLBACK_CLIENT_WRITEABLE                           = 10,
         LWS_CALLBACK_SERVER_WRITEABLE                           = 11,
         LWS_CALLBACK_HTTP                                       = 12,
         LWS_CALLBACK_HTTP_BODY                                  = 13,
         LWS_CALLBACK_HTTP_BODY_COMPLETION                       = 14,
         LWS_CALLBACK_HTTP_FILE_COMPLETION                       = 15,
         LWS_CALLBACK_HTTP_WRITEABLE                             = 16,
         LWS_CALLBACK_FILTER_NETWORK_CONNECTION                  = 17,
         LWS_CALLBACK_FILTER_HTTP_CONNECTION                     = 18,
         LWS_CALLBACK_SERVER_NEW_CLIENT_INSTANTIATED             = 19,
         LWS_CALLBACK_FILTER_PROTOCOL_CONNECTION                 = 20,
         LWS_CALLBACK_OPENSSL_LOAD_EXTRA_CLIENT_VERIFY_CERTS     = 21,
         LWS_CALLBACK_OPENSSL_LOAD_EXTRA_SERVER_VERIFY_CERTS     = 22,
         LWS_CALLBACK_OPENSSL_PERFORM_CLIENT_CERT_VERIFICATION   = 23,
         LWS_CALLBACK_CLIENT_APPEND_HANDSHAKE_HEADER             = 24,
         LWS_CALLBACK_CONFIRM_EXTENSION_OKAY                     = 25,
         LWS_CALLBACK_CLIENT_CONFIRM_EXTENSION_SUPPORTED         = 26,
         LWS_CALLBACK_PROTOCOL_INIT                              = 27,
         LWS_CALLBACK_PROTOCOL_DESTROY                           = 28,
         LWS_CALLBACK_WSI_CREATE                                 = 29,
         LWS_CALLBACK_WSI_DESTROY                                = 30,
         LWS_CALLBACK_GET_THREAD_ID                              = 31,
         /* external poll() management support */
         LWS_CALLBACK_ADD_POLL_FD                                = 32,
         LWS_CALLBACK_DEL_POLL_FD                                = 33,
         LWS_CALLBACK_CHANGE_MODE_POLL_FD                        = 34,
         LWS_CALLBACK_LOCK_POLL                                  = 35,
         LWS_CALLBACK_UNLOCK_POLL                                = 36,
         LWS_CALLBACK_OPENSSL_CONTEXT_REQUIRES_PRIVATE_KEY       = 37,
         LWS_CALLBACK_WS_PEER_INITIATED_CLOSE                    = 38,
         LWS_CALLBACK_WS_EXT_DEFAULTS                            = 39,
         LWS_CALLBACK_CGI                                        = 40,
         LWS_CALLBACK_CGI_TERMINATED                             = 41,
         LWS_CALLBACK_CGI_STDIN_DATA                             = 42,
         LWS_CALLBACK_CGI_STDIN_COMPLETED                        = 43,
         LWS_CALLBACK_ESTABLISHED_CLIENT_HTTP                    = 44,
         LWS_CALLBACK_CLOSED_CLIENT_HTTP                         = 45,
         LWS_CALLBACK_RECEIVE_CLIENT_HTTP                        = 46,
         LWS_CALLBACK_COMPLETED_CLIENT_HTTP                      = 47,
         LWS_CALLBACK_RECEIVE_CLIENT_HTTP_READ                   = 48,
         LWS_CALLBACK_HTTP_BIND_PROTOCOL                         = 49,
         LWS_CALLBACK_HTTP_DROP_PROTOCOL                         = 50,
         LWS_CALLBACK_CHECK_ACCESS_RIGHTS                        = 51,
         LWS_CALLBACK_PROCESS_HTML                               = 52,
         LWS_CALLBACK_ADD_HEADERS                                = 53,
         LWS_CALLBACK_SESSION_INFO                               = 54,
         LWS_CALLBACK_GS_EVENT                                   = 55,
         LWS_CALLBACK_HTTP_PMO                                   = 56,
         LWS_CALLBACK_CLIENT_HTTP_WRITEABLE                      = 57,
         /****** add new things just above ---^ ******/
 
         LWS_CALLBACK_USER = 1000,
 };
 
 
 
 typedef int
 lws_callback_function(struct lws *wsi, enum lws_callback_reasons reason,
                     void *user, void *in, size_t len);
 
 
 /*
  * NOTE: These public enums are part of the abi.  If you want to add one,
  * add it at where specified so existing users are unaffected.
  */
 enum lws_extension_callback_reasons {
         LWS_EXT_CB_SERVER_CONTEXT_CONSTRUCT             =  0,
         LWS_EXT_CB_CLIENT_CONTEXT_CONSTRUCT             =  1,
         LWS_EXT_CB_SERVER_CONTEXT_DESTRUCT              =  2,
         LWS_EXT_CB_CLIENT_CONTEXT_DESTRUCT              =  3,
         LWS_EXT_CB_CONSTRUCT                            =  4,
         LWS_EXT_CB_CLIENT_CONSTRUCT                     =  5,
         LWS_EXT_CB_CHECK_OK_TO_REALLY_CLOSE             =  6,
         LWS_EXT_CB_CHECK_OK_TO_PROPOSE_EXTENSION        =  7,
         LWS_EXT_CB_DESTROY                              =  8,
         LWS_EXT_CB_DESTROY_ANY_WSI_CLOSING              =  9,
         LWS_EXT_CB_ANY_WSI_ESTABLISHED                  = 10,
         LWS_EXT_CB_PACKET_RX_PREPARSE                   = 11,
         LWS_EXT_CB_PACKET_TX_PRESEND                    = 12,
         LWS_EXT_CB_PACKET_TX_DO_SEND                    = 13,
         LWS_EXT_CB_HANDSHAKE_REPLY_TX                   = 14,
         LWS_EXT_CB_FLUSH_PENDING_TX                     = 15,
         LWS_EXT_CB_EXTENDED_PAYLOAD_RX                  = 16,
         LWS_EXT_CB_CAN_PROXY_CLIENT_CONNECTION          = 17,
         LWS_EXT_CB_1HZ                                  = 18,
         LWS_EXT_CB_REQUEST_ON_WRITEABLE                 = 19,
         LWS_EXT_CB_IS_WRITEABLE                         = 20,
         LWS_EXT_CB_PAYLOAD_TX                           = 21,
         LWS_EXT_CB_PAYLOAD_RX                           = 22,
         LWS_EXT_CB_OPTION_DEFAULT                       = 23,
         LWS_EXT_CB_OPTION_SET                           = 24,
         LWS_EXT_CB_OPTION_CONFIRM                       = 25,
         LWS_EXT_CB_NAMED_OPTION_SET                     = 26,
 
         /****** add new things just above ---^ ******/
 };
 
 enum lws_ext_options_types {
         EXTARG_NONE, 
         EXTARG_DEC,  
         EXTARG_OPT_DEC 
         /* Add new things just above here ---^
          * This is part of the ABI, don't needlessly break compatibility */
 };
 
 struct lws_ext_options {
         const char *name; 
         enum lws_ext_options_types type; 
         /* Add new things just above here ---^
          * This is part of the ABI, don't needlessly break compatibility */
 };
 
 struct lws_ext_option_arg {
         const char *option_name; 
         int option_index; 
         const char *start; 
         int len; 
 };
 
 typedef int
 lws_extension_callback_function(struct lws_context *context,
                               const struct lws_extension *ext, struct lws *wsi,
                               enum lws_extension_callback_reasons reason,
                               void *user, void *in, size_t len);
 
 struct lws_extension {
         const char *name; 
         lws_extension_callback_function *callback; 
         const char *client_offer; 
         /* Add new things just above here ---^
          * This is part of the ABI, don't needlessly break compatibility */
 };
 
 LWS_VISIBLE LWS_EXTERN int
 lws_set_extension_option(struct lws *wsi, const char *ext_name,
                          const char *opt_name, const char *opt_val);
 
 #ifndef LWS_NO_EXTENSIONS
 /* lws_get_internal_extensions() - DEPRECATED
  *
  * \Deprecated There is no longer a set internal extensions table.  The table is provided
  * by user code along with application-specific settings.  See the test
  * client and server for how to do.
  */
 static LWS_INLINE LWS_WARN_DEPRECATED const struct lws_extension *
 lws_get_internal_extensions(void) { return NULL; }
 
 LWS_VISIBLE LWS_EXTERN int LWS_WARN_UNUSED_RESULT
 lws_ext_parse_options(const struct lws_extension *ext, struct lws *wsi,
                        void *ext_user, const struct lws_ext_options *opts,
                        const char *o, int len);
 #endif
 
 LWS_EXTERN
 int lws_extension_callback_pm_deflate(
         struct lws_context *context, const struct lws_extension *ext,
         struct lws *wsi, enum lws_extension_callback_reasons reason,
         void *user, void *in, size_t len);
 
 /*
  * The internal exts are part of the public abi
  * If we add more extensions, publish the callback here  ------v
  */
 
 
 struct lws_protocols {
         const char *name;
         lws_callback_function *callback;
         size_t per_session_data_size;
         size_t rx_buffer_size;
         unsigned int id;
         void *user; 
         /* Add new things just above here ---^
          * This is part of the ABI, don't needlessly break compatibility */
 };
 
 struct lws_vhost;
 
 LWS_VISIBLE LWS_EXTERN const struct lws_protocols *
 lws_vhost_name_to_protocol(struct lws_vhost *vh, const char *name);
 
 LWS_VISIBLE LWS_EXTERN const struct lws_protocols *
 lws_get_protocol(struct lws *wsi);
 
 LWS_VISIBLE LWS_EXTERN const struct lws_protocols *
 lws_protocol_get(struct lws *wsi) LWS_WARN_DEPRECATED;
 
 LWS_VISIBLE LWS_EXTERN void *
 lws_protocol_vh_priv_zalloc(struct lws_vhost *vhost, const struct lws_protocols *prot,
                             int size);
 
 LWS_VISIBLE LWS_EXTERN void *
 lws_protocol_vh_priv_get(struct lws_vhost *vhost, const struct lws_protocols *prot);
 
 LWS_VISIBLE LWS_EXTERN int
 lws_finalize_startup(struct lws_context *context);
 
 #ifdef LWS_WITH_PLUGINS
 
 /* PLUGINS implies LIBUV */
 
 #define LWS_PLUGIN_API_MAGIC 180
 
 struct lws_plugin_capability {
         unsigned int api_magic; 
         const struct lws_protocols *protocols; 
         int count_protocols; 
         const struct lws_extension *extensions; 
         int count_extensions; 
 };
 
 typedef int (*lws_plugin_init_func)(struct lws_context *,
                                     struct lws_plugin_capability *);
 typedef int (*lws_plugin_destroy_func)(struct lws_context *);
 
 struct lws_plugin {
         struct lws_plugin *list; 
 #if (UV_VERSION_MAJOR > 0)
         uv_lib_t lib; 
 #else
         void *l; 
 #endif
         char name[64]; 
         struct lws_plugin_capability caps; 
 };
 
 #endif
 
 
 
 
 #define LWSGS_EMAIL_CONTENT_SIZE 16384
 
 /* SHA-1 binary and hexified versions */
 typedef struct { unsigned char bin[20]; } lwsgw_hash_bin;
 typedef struct { char id[41];  } lwsgw_hash;
 
 enum lwsgs_auth_bits {
         LWSGS_AUTH_LOGGED_IN = 1, 
         LWSGS_AUTH_ADMIN = 2,   
         LWSGS_AUTH_VERIFIED = 4,  
         LWSGS_AUTH_FORGOT_FLOW = 8,     
 };
 
 struct lws_session_info {
         char username[32]; 
         char email[100]; 
         char ip[72]; 
         unsigned int mask; 
         char session[42]; 
 };
 
 enum lws_gs_event {
         LWSGSE_CREATED, 
         LWSGSE_DELETED  
 };
 
 struct lws_gs_event_args {
         enum lws_gs_event event; 
         const char *username; 
         const char *email; 
 };
 
 
 
 
 /*
  * NOTE: These public enums are part of the abi.  If you want to add one,
  * add it at where specified so existing users are unaffected.
  */
 
 enum lws_context_options {
         LWS_SERVER_OPTION_REQUIRE_VALID_OPENSSL_CLIENT_CERT     = (1 << 1) |
                                                                   (1 << 12),
         LWS_SERVER_OPTION_SKIP_SERVER_CANONICAL_NAME            = (1 << 2),
         LWS_SERVER_OPTION_ALLOW_NON_SSL_ON_SSL_PORT             = (1 << 3) |
                                                                   (1 << 12),
         LWS_SERVER_OPTION_LIBEV                                 = (1 << 4),
         LWS_SERVER_OPTION_DISABLE_IPV6                          = (1 << 5),
         LWS_SERVER_OPTION_DISABLE_OS_CA_CERTS                   = (1 << 6),
         LWS_SERVER_OPTION_PEER_CERT_NOT_REQUIRED                = (1 << 7),
         LWS_SERVER_OPTION_VALIDATE_UTF8                         = (1 << 8),
         LWS_SERVER_OPTION_SSL_ECDH                              = (1 << 9) |
                                                                   (1 << 12),
         LWS_SERVER_OPTION_LIBUV                                 = (1 << 10),
         LWS_SERVER_OPTION_REDIRECT_HTTP_TO_HTTPS                = (1 << 11) |
                                                                   (1 << 12),
         LWS_SERVER_OPTION_DO_SSL_GLOBAL_INIT                    = (1 << 12),
         LWS_SERVER_OPTION_EXPLICIT_VHOSTS                       = (1 << 13),
         LWS_SERVER_OPTION_UNIX_SOCK                             = (1 << 14),
         LWS_SERVER_OPTION_STS                                   = (1 << 15),
         LWS_SERVER_OPTION_IPV6_V6ONLY_MODIFY                    = (1 << 16),
         LWS_SERVER_OPTION_IPV6_V6ONLY_VALUE                     = (1 << 17),
         LWS_SERVER_OPTION_UV_NO_SIGSEGV_SIGFPE_SPIN             = (1 << 18),
         /****** add new things just above ---^ ******/
 };
 
 #define lws_check_opt(c, f) (((c) & (f)) == (f))
 
 struct lws_context_creation_info {
         int port;
         const char *iface;
         const struct lws_protocols *protocols;
         const struct lws_extension *extensions;
         const struct lws_token_limits *token_limits;
         const char *ssl_private_key_password;
         const char *ssl_cert_filepath;
         const char *ssl_private_key_filepath;
         const char *ssl_ca_filepath;
         const char *ssl_cipher_list;
         const char *http_proxy_address;
         unsigned int http_proxy_port;
         int gid;
         int uid;
         unsigned int options;
         void *user;
         int ka_time;
         int ka_probes;
         int ka_interval;
 #ifdef LWS_OPENSSL_SUPPORT
         SSL_CTX *provided_client_ssl_ctx;
 #else /* maintain structure layout either way */
         void *provided_client_ssl_ctx; 
 #endif
 
         short max_http_header_data;
         short max_http_header_pool;
         unsigned int count_threads;
         unsigned int fd_limit_per_thread;
         unsigned int timeout_secs;
         const char *ecdh_curve;
         const char *vhost_name;
         const char * const *plugin_dirs;
         const struct lws_protocol_vhost_options *pvo;
         int keepalive_timeout;
         const char *log_filepath;
         const struct lws_http_mount *mounts;
         const char *server_string;
         unsigned int pt_serv_buf_size;
         unsigned int max_http_header_data2;
         long ssl_options_set;
         long ssl_options_clear;
         unsigned short ws_ping_pong_interval;
         const struct lws_protocol_vhost_options *headers;
         const struct lws_protocol_vhost_options *reject_service_keywords;
         void *external_baggage_free_on_destroy;
         /* Add new things just above here ---^
          * This is part of the ABI, don't needlessly break compatibility
          *
          * The below is to ensure later library versions with new
          * members added above will see 0 (default) even if the app
          * was not built against the newer headers.
          */
 
         void *_unused[8]; 
 };
 
 LWS_VISIBLE LWS_EXTERN struct lws_context *
 lws_create_context(struct lws_context_creation_info *info);
 
 LWS_VISIBLE LWS_EXTERN void
 lws_context_destroy(struct lws_context *context);
 
 LWS_VISIBLE LWS_EXTERN int
 lws_set_proxy(struct lws_vhost *vhost, const char *proxy);
 
 
 struct lws_vhost;
 
 LWS_EXTERN LWS_VISIBLE struct lws_vhost *
 lws_create_vhost(struct lws_context *context,
                  struct lws_context_creation_info *info);
 
 LWS_VISIBLE LWS_EXTERN int
 lwsws_get_config_globals(struct lws_context_creation_info *info, const char *d,
                          char **config_strings, int *len);
 
 LWS_VISIBLE LWS_EXTERN int
 lwsws_get_config_vhosts(struct lws_context *context,
                         struct lws_context_creation_info *info, const char *d,
                         char **config_strings, int *len);
 
 LWS_VISIBLE LWS_EXTERN struct lws_vhost *
 lws_vhost_get(struct lws *wsi) LWS_WARN_DEPRECATED;
 
 LWS_VISIBLE LWS_EXTERN struct lws_vhost *
 lws_get_vhost(struct lws *wsi);
 
 LWS_VISIBLE LWS_EXTERN int
 lws_json_dump_vhost(const struct lws_vhost *vh, char *buf, int len);
 
 LWS_VISIBLE LWS_EXTERN int
 lws_json_dump_context(const struct lws_context *context, char *buf, int len);
 
 LWS_VISIBLE LWS_EXTERN void *
 lws_context_user(struct lws_context *context);
 
 
 struct lws_protocol_vhost_options {
         const struct lws_protocol_vhost_options *next; 
         const struct lws_protocol_vhost_options *options; 
         const char *name; 
         const char *value; 
 };
 
 enum lws_mount_protocols {
         LWSMPRO_HTTP            = 0, 
         LWSMPRO_HTTPS           = 1, 
         LWSMPRO_FILE            = 2, 
         LWSMPRO_CGI             = 3, 
         LWSMPRO_REDIR_HTTP      = 4, 
         LWSMPRO_REDIR_HTTPS     = 5, 
         LWSMPRO_CALLBACK        = 6, 
 };
 
 struct lws_http_mount {
         const struct lws_http_mount *mount_next;
         const char *mountpoint;
         const char *origin;
         const char *def;
         const char *protocol;
         const struct lws_protocol_vhost_options *cgienv;
         const struct lws_protocol_vhost_options *extra_mimetypes;
         const struct lws_protocol_vhost_options *interpret;
         int cgi_timeout;
         int cache_max_age;
         unsigned int auth_mask;
         unsigned int cache_reusable:1; 
         unsigned int cache_revalidate:1; 
         unsigned int cache_intermediaries:1; 
         unsigned char origin_protocol; 
         unsigned char mountpoint_len; 
         const char *basic_auth_login_file;
         /* Add new things just above here ---^
          * This is part of the ABI, don't needlessly break compatibility
          *
          * The below is to ensure later library versions with new
          * members added above will see 0 (default) even if the app
          * was not built against the newer headers.
          */
 
         void *_unused[2]; 
 };
 
 
 enum lws_client_connect_ssl_connection_flags {
         LCCSCF_USE_SSL                          = (1 << 0),
         LCCSCF_ALLOW_SELFSIGNED                 = (1 << 1),
         LCCSCF_SKIP_SERVER_CERT_HOSTNAME_CHECK  = (1 << 2),
         LCCSCF_ALLOW_EXPIRED                    = (1 << 3)
 };
 
 struct lws_client_connect_info {
         struct lws_context *context;
         const char *address;
         int port;
         int ssl_connection;
         const char *path;
         const char *host;
         const char *origin;
         const char *protocol;
         int ietf_version_or_minus_one;
         void *userdata;
         const struct lws_extension *client_exts;
         const char *method;
         struct lws *parent_wsi;
         const char *uri_replace_from;
         const char *uri_replace_to;
         struct lws_vhost *vhost;
         struct lws **pwsi;
         /* Add new things just above here ---^
          * This is part of the ABI, don't needlessly break compatibility
          *
          * The below is to ensure later library versions with new
          * members added above will see 0 (default) even if the app
          * was not built against the newer headers.
          */
 
         void *_unused[4]; 
 };
 
 LWS_VISIBLE LWS_EXTERN struct lws *
 lws_client_connect_via_info(struct lws_client_connect_info * ccinfo);
 
 /* deprecated, use lws_client_connect_via_info() */
 LWS_VISIBLE LWS_EXTERN struct lws * LWS_WARN_UNUSED_RESULT
 lws_client_connect(struct lws_context *clients, const char *address,
                    int port, int ssl_connection, const char *path,
                    const char *host, const char *origin, const char *protocol,
                    int ietf_version_or_minus_one) LWS_WARN_DEPRECATED;
 /* deprecated, use lws_client_connect_via_info() */
 LWS_VISIBLE LWS_EXTERN struct lws * LWS_WARN_UNUSED_RESULT
 lws_client_connect_extended(struct lws_context *clients, const char *address,
                             int port, int ssl_connection, const char *path,
                             const char *host, const char *origin,
                             const char *protocol, int ietf_version_or_minus_one,
                             void *userdata) LWS_WARN_DEPRECATED;
 
 LWS_VISIBLE LWS_EXTERN int
 lws_init_vhost_client_ssl(const struct lws_context_creation_info *info,
                           struct lws_vhost *vhost);
 
 LWS_VISIBLE LWS_EXTERN int
 lws_http_client_read(struct lws *wsi, char **buf, int *len);
 
 LWS_VISIBLE LWS_EXTERN unsigned int
 lws_http_client_http_response(struct lws *wsi);
 
 LWS_VISIBLE LWS_EXTERN void
 lws_client_http_body_pending(struct lws *wsi, int something_left_to_send);
 
 
 
 LWS_VISIBLE LWS_EXTERN int
 lws_service(struct lws_context *context, int timeout_ms);
 
 LWS_VISIBLE LWS_EXTERN int
 lws_service_tsi(struct lws_context *context, int timeout_ms, int tsi);
 
 LWS_VISIBLE LWS_EXTERN void
 lws_cancel_service_pt(struct lws *wsi);
 
 LWS_VISIBLE LWS_EXTERN void
 lws_cancel_service(struct lws_context *context);
 
 LWS_VISIBLE LWS_EXTERN int
 lws_service_fd(struct lws_context *context, struct lws_pollfd *pollfd);
 
 LWS_VISIBLE LWS_EXTERN int
 lws_service_fd_tsi(struct lws_context *context, struct lws_pollfd *pollfd,
                    int tsi);
 
 LWS_VISIBLE LWS_EXTERN int
 lws_service_adjust_timeout(struct lws_context *context, int timeout_ms, int tsi);
 
 /* Backwards compatibility */
 #define lws_plat_service_tsi lws_service_tsi
 
 
 
 
 LWS_VISIBLE LWS_EXTERN const char *
 lws_get_mimetype(const char *file, const struct lws_http_mount *m);
 
 LWS_VISIBLE LWS_EXTERN int
 lws_serve_http_file(struct lws *wsi, const char *file, const char *content_type,
                     const char *other_headers, int other_headers_len);
 LWS_VISIBLE LWS_EXTERN int
 lws_serve_http_file_fragment(struct lws *wsi);
 
 
 enum http_status {
         HTTP_STATUS_OK                                          = 200,
         HTTP_STATUS_NO_CONTENT                                  = 204,
 
         HTTP_STATUS_MOVED_PERMANENTLY                           = 301,
         HTTP_STATUS_FOUND                                       = 302,
         HTTP_STATUS_SEE_OTHER                                   = 303,
 
         HTTP_STATUS_BAD_REQUEST                                 = 400,
         HTTP_STATUS_UNAUTHORIZED,
         HTTP_STATUS_PAYMENT_REQUIRED,
         HTTP_STATUS_FORBIDDEN,
         HTTP_STATUS_NOT_FOUND,
         HTTP_STATUS_METHOD_NOT_ALLOWED,
         HTTP_STATUS_NOT_ACCEPTABLE,
         HTTP_STATUS_PROXY_AUTH_REQUIRED,
         HTTP_STATUS_REQUEST_TIMEOUT,
         HTTP_STATUS_CONFLICT,
         HTTP_STATUS_GONE,
         HTTP_STATUS_LENGTH_REQUIRED,
         HTTP_STATUS_PRECONDITION_FAILED,
         HTTP_STATUS_REQ_ENTITY_TOO_LARGE,
         HTTP_STATUS_REQ_URI_TOO_LONG,
         HTTP_STATUS_UNSUPPORTED_MEDIA_TYPE,
         HTTP_STATUS_REQ_RANGE_NOT_SATISFIABLE,
         HTTP_STATUS_EXPECTATION_FAILED,
 
         HTTP_STATUS_INTERNAL_SERVER_ERROR                       = 500,
         HTTP_STATUS_NOT_IMPLEMENTED,
         HTTP_STATUS_BAD_GATEWAY,
         HTTP_STATUS_SERVICE_UNAVAILABLE,
         HTTP_STATUS_GATEWAY_TIMEOUT,
         HTTP_STATUS_HTTP_VERSION_NOT_SUPPORTED,
 };
 
 struct lws_process_html_args {
         char *p; 
         int len; 
         int max_len; 
         int final; 
 };
 
 typedef const char *(*lws_process_html_state_cb)(void *data, int index);
 
 struct lws_process_html_state {
         char *start; 
         char swallow[16]; 
         int pos; 
         void *data; 
         const char * const *vars; 
         int count_vars; 
         lws_process_html_state_cb replace; 
 };
 
 LWS_VISIBLE LWS_EXTERN int
 lws_chunked_html_process(struct lws_process_html_args *args,
                          struct lws_process_html_state *s);
 
 
 struct lws_tokens {
         char *token; 
         int token_len; 
 };
 
 /* enum lws_token_indexes
  * these have to be kept in sync with lextable.h / minilex.c
  *
  * NOTE: These public enums are part of the abi.  If you want to add one,
  * add it at where specified so existing users are unaffected.
  */
 enum lws_token_indexes {
         WSI_TOKEN_GET_URI                                       =  0,
         WSI_TOKEN_POST_URI                                      =  1,
         WSI_TOKEN_OPTIONS_URI                                   =  2,
         WSI_TOKEN_HOST                                          =  3,
         WSI_TOKEN_CONNECTION                                    =  4,
         WSI_TOKEN_UPGRADE                                       =  5,
         WSI_TOKEN_ORIGIN                                        =  6,
         WSI_TOKEN_DRAFT                                         =  7,
         WSI_TOKEN_CHALLENGE                                     =  8,
         WSI_TOKEN_EXTENSIONS                                    =  9,
         WSI_TOKEN_KEY1                                          = 10,
         WSI_TOKEN_KEY2                                          = 11,
         WSI_TOKEN_PROTOCOL                                      = 12,
         WSI_TOKEN_ACCEPT                                        = 13,
         WSI_TOKEN_NONCE                                         = 14,
         WSI_TOKEN_HTTP                                          = 15,
         WSI_TOKEN_HTTP2_SETTINGS                                = 16,
         WSI_TOKEN_HTTP_ACCEPT                                   = 17,
         WSI_TOKEN_HTTP_AC_REQUEST_HEADERS                       = 18,
         WSI_TOKEN_HTTP_IF_MODIFIED_SINCE                        = 19,
         WSI_TOKEN_HTTP_IF_NONE_MATCH                            = 20,
         WSI_TOKEN_HTTP_ACCEPT_ENCODING                          = 21,
         WSI_TOKEN_HTTP_ACCEPT_LANGUAGE                          = 22,
         WSI_TOKEN_HTTP_PRAGMA                                   = 23,
         WSI_TOKEN_HTTP_CACHE_CONTROL                            = 24,
         WSI_TOKEN_HTTP_AUTHORIZATION                            = 25,
         WSI_TOKEN_HTTP_COOKIE                                   = 26,
         WSI_TOKEN_HTTP_CONTENT_LENGTH                           = 27,
         WSI_TOKEN_HTTP_CONTENT_TYPE                             = 28,
         WSI_TOKEN_HTTP_DATE                                     = 29,
         WSI_TOKEN_HTTP_RANGE                                    = 30,
         WSI_TOKEN_HTTP_REFERER                                  = 31,
         WSI_TOKEN_KEY                                           = 32,
         WSI_TOKEN_VERSION                                       = 33,
         WSI_TOKEN_SWORIGIN                                      = 34,
 
         WSI_TOKEN_HTTP_COLON_AUTHORITY                          = 35,
         WSI_TOKEN_HTTP_COLON_METHOD                             = 36,
         WSI_TOKEN_HTTP_COLON_PATH                               = 37,
         WSI_TOKEN_HTTP_COLON_SCHEME                             = 38,
         WSI_TOKEN_HTTP_COLON_STATUS                             = 39,
 
         WSI_TOKEN_HTTP_ACCEPT_CHARSET                           = 40,
         WSI_TOKEN_HTTP_ACCEPT_RANGES                            = 41,
         WSI_TOKEN_HTTP_ACCESS_CONTROL_ALLOW_ORIGIN              = 42,
         WSI_TOKEN_HTTP_AGE                                      = 43,
         WSI_TOKEN_HTTP_ALLOW                                    = 44,
         WSI_TOKEN_HTTP_CONTENT_DISPOSITION                      = 45,
         WSI_TOKEN_HTTP_CONTENT_ENCODING                         = 46,
         WSI_TOKEN_HTTP_CONTENT_LANGUAGE                         = 47,
         WSI_TOKEN_HTTP_CONTENT_LOCATION                         = 48,
         WSI_TOKEN_HTTP_CONTENT_RANGE                            = 49,
         WSI_TOKEN_HTTP_ETAG                                     = 50,
         WSI_TOKEN_HTTP_EXPECT                                   = 51,
         WSI_TOKEN_HTTP_EXPIRES                                  = 52,
         WSI_TOKEN_HTTP_FROM                                     = 53,
         WSI_TOKEN_HTTP_IF_MATCH                                 = 54,
         WSI_TOKEN_HTTP_IF_RANGE                                 = 55,
         WSI_TOKEN_HTTP_IF_UNMODIFIED_SINCE                      = 56,
         WSI_TOKEN_HTTP_LAST_MODIFIED                            = 57,
         WSI_TOKEN_HTTP_LINK                                     = 58,
         WSI_TOKEN_HTTP_LOCATION                                 = 59,
         WSI_TOKEN_HTTP_MAX_FORWARDS                             = 60,
         WSI_TOKEN_HTTP_PROXY_AUTHENTICATE                       = 61,
         WSI_TOKEN_HTTP_PROXY_AUTHORIZATION                      = 62,
         WSI_TOKEN_HTTP_REFRESH                                  = 63,
         WSI_TOKEN_HTTP_RETRY_AFTER                              = 64,
         WSI_TOKEN_HTTP_SERVER                                   = 65,
         WSI_TOKEN_HTTP_SET_COOKIE                               = 66,
         WSI_TOKEN_HTTP_STRICT_TRANSPORT_SECURITY                = 67,
         WSI_TOKEN_HTTP_TRANSFER_ENCODING                        = 68,
         WSI_TOKEN_HTTP_USER_AGENT                               = 69,
         WSI_TOKEN_HTTP_VARY                                     = 70,
         WSI_TOKEN_HTTP_VIA                                      = 71,
         WSI_TOKEN_HTTP_WWW_AUTHENTICATE                         = 72,
 
         WSI_TOKEN_PATCH_URI                                     = 73,
         WSI_TOKEN_PUT_URI                                       = 74,
         WSI_TOKEN_DELETE_URI                                    = 75,
 
         WSI_TOKEN_HTTP_URI_ARGS                                 = 76,
         WSI_TOKEN_PROXY                                         = 77,
         WSI_TOKEN_HTTP_X_REAL_IP                                = 78,
         WSI_TOKEN_HTTP1_0                                       = 79,
         WSI_TOKEN_X_FORWARDED_FOR                               = 80,
 
         /****** add new things just above ---^ ******/
 
         /* use token storage to stash these internally, not for
          * user use */
 
         _WSI_TOKEN_CLIENT_SENT_PROTOCOLS,
         _WSI_TOKEN_CLIENT_PEER_ADDRESS,
         _WSI_TOKEN_CLIENT_URI,
         _WSI_TOKEN_CLIENT_HOST,
         _WSI_TOKEN_CLIENT_ORIGIN,
         _WSI_TOKEN_CLIENT_METHOD,
 
         /* always last real token index*/
         WSI_TOKEN_COUNT,
 
         /* parser state additions, no storage associated */
         WSI_TOKEN_NAME_PART,
         WSI_TOKEN_SKIPPING,
         WSI_TOKEN_SKIPPING_SAW_CR,
         WSI_PARSING_COMPLETE,
         WSI_INIT_TOKEN_MUXURL,
 };
 
 struct lws_token_limits {
         unsigned short token_limit[WSI_TOKEN_COUNT]; 
 };
 
 LWS_VISIBLE LWS_EXTERN const unsigned char *
 lws_token_to_string(enum lws_token_indexes token);
 
 
 LWS_VISIBLE LWS_EXTERN int LWS_WARN_UNUSED_RESULT
 lws_hdr_total_length(struct lws *wsi, enum lws_token_indexes h);
 
 LWS_VISIBLE LWS_EXTERN int LWS_WARN_UNUSED_RESULT
 lws_hdr_fragment_length(struct lws *wsi, enum lws_token_indexes h, int frag_idx);
 
 LWS_VISIBLE LWS_EXTERN int
 lws_hdr_copy(struct lws *wsi, char *dest, int len, enum lws_token_indexes h);
 
 LWS_VISIBLE LWS_EXTERN int
 lws_hdr_copy_fragment(struct lws *wsi, char *dest, int len,
                       enum lws_token_indexes h, int frag_idx);
 
 LWS_VISIBLE LWS_EXTERN const char *
 lws_get_urlarg_by_name(struct lws *wsi, const char *name, char *buf, int len);
 
 
 LWS_VISIBLE LWS_EXTERN int LWS_WARN_UNUSED_RESULT
 lws_add_http_header_status(struct lws *wsi,
                            unsigned int code, unsigned char **p,
                            unsigned char *end);
 LWS_VISIBLE LWS_EXTERN int LWS_WARN_UNUSED_RESULT
 lws_add_http_header_by_name(struct lws *wsi, const unsigned char *name,
                             const unsigned char *value, int length,
                             unsigned char **p, unsigned char *end);
 LWS_VISIBLE LWS_EXTERN int LWS_WARN_UNUSED_RESULT
 lws_add_http_header_by_token(struct lws *wsi, enum lws_token_indexes token,
                              const unsigned char *value, int length,
                              unsigned char **p, unsigned char *end);
 LWS_VISIBLE LWS_EXTERN int LWS_WARN_UNUSED_RESULT
 lws_add_http_header_content_length(struct lws *wsi,
                                    unsigned long content_length,
                                    unsigned char **p, unsigned char *end);
 LWS_VISIBLE LWS_EXTERN int LWS_WARN_UNUSED_RESULT
 lws_finalize_http_header(struct lws *wsi, unsigned char **p,
                          unsigned char *end);
 
 
 enum lws_spa_fileupload_states {
         LWS_UFS_CONTENT,
         LWS_UFS_FINAL_CONTENT,
         LWS_UFS_OPEN
 };
 
 typedef int (*lws_spa_fileupload_cb)(void *data, const char *name,
                         const char *filename, char *buf, int len,
                         enum lws_spa_fileupload_states state);
 
 struct lws_spa;
 
 LWS_VISIBLE LWS_EXTERN struct lws_spa *
 lws_spa_create(struct lws *wsi, const char * const *param_names,
                int count_params, int max_storage, lws_spa_fileupload_cb opt_cb,
                void *opt_data);
 
 LWS_VISIBLE LWS_EXTERN int
 lws_spa_process(struct lws_spa *spa, const char *in, int len);
 
 LWS_VISIBLE LWS_EXTERN int
 lws_spa_finalize(struct lws_spa *spa);
 
 LWS_VISIBLE LWS_EXTERN int
 lws_spa_get_length(struct lws_spa *spa, int n);
 
 LWS_VISIBLE LWS_EXTERN const char *
 lws_spa_get_string(struct lws_spa *spa, int n);
 
 LWS_VISIBLE LWS_EXTERN int
 lws_spa_destroy(struct lws_spa *spa);
 
 
 LWS_VISIBLE LWS_EXTERN const char *
 lws_urlencode(char *escaped, const char *string, int len);
 
 /*
  * URLDECODE 1 / 2
  *
  * This simple urldecode only operates until the first '\0' and requires the
  * data to exist all at once
  */
 LWS_VISIBLE LWS_EXTERN int
 lws_urldecode(char *string, const char *escaped, int len);
 
 LWS_VISIBLE LWS_EXTERN int
 lws_return_http_status(struct lws *wsi, unsigned int code,
                        const char *html_body);
 
 LWS_VISIBLE LWS_EXTERN int LWS_WARN_UNUSED_RESULT
 lws_http_redirect(struct lws *wsi, int code, const unsigned char *loc, int len,
                   unsigned char **p, unsigned char *end);
 
 LWS_VISIBLE LWS_EXTERN int LWS_WARN_UNUSED_RESULT
 lws_http_transaction_completed(struct lws *wsi);
 
 
 LWS_VISIBLE LWS_EXTERN const char *
 lws_sql_purify(char *escaped, const char *string, int len);
 
 LWS_VISIBLE LWS_EXTERN const char *
 lws_json_purify(char *escaped, const char *string, int len);
 
 
 #ifdef LWS_USE_LIBEV
 typedef void (lws_ev_signal_cb_t)(EV_P_ struct ev_signal *w, int revents);
 
 LWS_VISIBLE LWS_EXTERN int
 lws_ev_sigint_cfg(struct lws_context *context, int use_ev_sigint,
                   lws_ev_signal_cb_t *cb);
 
 LWS_VISIBLE LWS_EXTERN int
 lws_ev_initloop(struct lws_context *context, struct ev_loop *loop, int tsi);
 
 LWS_VISIBLE LWS_EXTERN void
 lws_ev_sigint_cb(struct ev_loop *loop, struct ev_signal *watcher, int revents);
 #endif /* LWS_USE_LIBEV */
 
 
 #ifdef LWS_USE_LIBUV
 LWS_VISIBLE LWS_EXTERN int
 lws_uv_sigint_cfg(struct lws_context *context, int use_uv_sigint,
                   uv_signal_cb cb);
 
 LWS_VISIBLE LWS_EXTERN void
 lws_libuv_run(const struct lws_context *context, int tsi);
 
 LWS_VISIBLE LWS_EXTERN void
 lws_libuv_stop(struct lws_context *context);
 
 LWS_VISIBLE LWS_EXTERN int
 lws_uv_initloop(struct lws_context *context, uv_loop_t *loop, int tsi);
 
 LWS_VISIBLE LWS_EXTERN uv_loop_t *
 lws_uv_getloop(struct lws_context *context, int tsi);
 
 LWS_VISIBLE LWS_EXTERN void
 lws_uv_sigint_cb(uv_signal_t *watcher, int signum);
 #endif /* LWS_USE_LIBUV */
 
 
 /*
  * NOTE: These public enums are part of the abi.  If you want to add one,
  * add it at where specified so existing users are unaffected.
  */
 enum pending_timeout {
         NO_PENDING_TIMEOUT                                      =  0,
         PENDING_TIMEOUT_AWAITING_PROXY_RESPONSE                 =  1,
         PENDING_TIMEOUT_AWAITING_CONNECT_RESPONSE               =  2,
         PENDING_TIMEOUT_ESTABLISH_WITH_SERVER                   =  3,
         PENDING_TIMEOUT_AWAITING_SERVER_RESPONSE                =  4,
         PENDING_TIMEOUT_AWAITING_PING                           =  5,
         PENDING_TIMEOUT_CLOSE_ACK                               =  6,
         PENDING_TIMEOUT_AWAITING_EXTENSION_CONNECT_RESPONSE     =  7,
         PENDING_TIMEOUT_SENT_CLIENT_HANDSHAKE                   =  8,
         PENDING_TIMEOUT_SSL_ACCEPT                              =  9,
         PENDING_TIMEOUT_HTTP_CONTENT                            = 10,
         PENDING_TIMEOUT_AWAITING_CLIENT_HS_SEND                 = 11,
         PENDING_FLUSH_STORED_SEND_BEFORE_CLOSE                  = 12,
         PENDING_TIMEOUT_SHUTDOWN_FLUSH                          = 13,
         PENDING_TIMEOUT_CGI                                     = 14,
         PENDING_TIMEOUT_HTTP_KEEPALIVE_IDLE                     = 15,
         PENDING_TIMEOUT_WS_PONG_CHECK_SEND_PING                 = 16,
         PENDING_TIMEOUT_WS_PONG_CHECK_GET_PONG                  = 17,
         PENDING_TIMEOUT_CLIENT_ISSUE_PAYLOAD                    = 18,
 
         /****** add new things just above ---^ ******/
 };
 
 LWS_VISIBLE LWS_EXTERN void
 lws_set_timeout(struct lws *wsi, enum pending_timeout reason, int secs);
 
 #if !defined(LWS_SIZEOFPTR)
 #define LWS_SIZEOFPTR (sizeof (void *))
 #endif
 #if !defined(u_int64_t)
 #define u_int64_t unsigned long long
 #endif
 
 #if defined(__x86_64__)
 #define _LWS_PAD_SIZE 16        /* Intel recommended for best performance */
 #else
 #define _LWS_PAD_SIZE LWS_SIZEOFPTR   /* Size of a pointer on the target arch */
 #endif
 #define _LWS_PAD(n) (((n) % _LWS_PAD_SIZE) ? \
                 ((n) + (_LWS_PAD_SIZE - ((n) % _LWS_PAD_SIZE))) : (n))
 #define LWS_PRE _LWS_PAD(4 + 10)
 /* used prior to 1.7 and retained for backward compatibility */
 #define LWS_SEND_BUFFER_PRE_PADDING LWS_PRE
 #define LWS_SEND_BUFFER_POST_PADDING 0
 
 /*
  * NOTE: These public enums are part of the abi.  If you want to add one,
  * add it at where specified so existing users are unaffected.
  */
 enum lws_write_protocol {
         LWS_WRITE_TEXT                                          = 0,
         LWS_WRITE_BINARY                                        = 1,
         LWS_WRITE_CONTINUATION                                  = 2,
         LWS_WRITE_HTTP                                          = 3,
         /* LWS_WRITE_CLOSE is handled by lws_close_reason() */
         LWS_WRITE_PING                                          = 5,
         LWS_WRITE_PONG                                          = 6,
 
         /* Same as write_http but we know this write ends the transaction */
         LWS_WRITE_HTTP_FINAL                                    = 7,
 
         /* HTTP2 */
 
         LWS_WRITE_HTTP_HEADERS                                  = 8,
         /****** add new things just above ---^ ******/
 
         /* flags */
 
         LWS_WRITE_NO_FIN = 0x40,
         LWS_WRITE_CLIENT_IGNORE_XOR_MASK = 0x80
 };
 
 
 LWS_VISIBLE LWS_EXTERN int
 lws_write(struct lws *wsi, unsigned char *buf, size_t len,
           enum lws_write_protocol protocol);
 
 /* helper for case where buffer may be const */
 #define lws_write_http(wsi, buf, len) \
         lws_write(wsi, (unsigned char *)(buf), len, LWS_WRITE_HTTP)
 
 
 LWS_VISIBLE LWS_EXTERN int
 lws_callback_on_writable(struct lws *wsi);
 
 LWS_VISIBLE LWS_EXTERN int
 lws_callback_on_writable_all_protocol(const struct lws_context *context,
                                       const struct lws_protocols *protocol);
 
 LWS_VISIBLE LWS_EXTERN int
 lws_callback_on_writable_all_protocol_vhost(const struct lws_vhost *vhost,
                                       const struct lws_protocols *protocol);
 
 LWS_VISIBLE LWS_EXTERN int
 lws_callback_all_protocol(struct lws_context *context,
                           const struct lws_protocols *protocol, int reason);
 
 LWS_VISIBLE LWS_EXTERN int
 lws_callback_all_protocol_vhost(struct lws_vhost *vh,
                           const struct lws_protocols *protocol, int reason);
 
 LWS_VISIBLE LWS_EXTERN int
 lws_callback_vhost_protocols(struct lws *wsi, int reason, void *in, int len);
 
 LWS_VISIBLE LWS_EXTERN int
 lws_callback_http_dummy(struct lws *wsi, enum lws_callback_reasons reason,
                     void *user, void *in, size_t len);
 
 LWS_VISIBLE LWS_EXTERN int
 lws_get_socket_fd(struct lws *wsi);
 
 LWS_VISIBLE LWS_EXTERN size_t
 lws_get_peer_write_allowance(struct lws *wsi);
 
 LWS_VISIBLE LWS_EXTERN int
 lws_rx_flow_control(struct lws *wsi, int enable);
 
 LWS_VISIBLE LWS_EXTERN void
 lws_rx_flow_allow_all_protocol(const struct lws_context *context,
                                const struct lws_protocols *protocol);
 
 LWS_VISIBLE LWS_EXTERN size_t
 lws_remaining_packet_payload(struct lws *wsi);
 
 
 
 LWS_VISIBLE LWS_EXTERN struct lws *
 lws_adopt_socket(struct lws_context *context, lws_sockfd_type accept_fd);
 LWS_VISIBLE LWS_EXTERN struct lws *
 lws_adopt_socket_readbuf(struct lws_context *context, lws_sockfd_type accept_fd,
                 const char *readbuf, size_t len);
 
 
 LWS_VISIBLE LWS_EXTERN const char * LWS_WARN_UNUSED_RESULT
 lws_canonical_hostname(struct lws_context *context);
 
 LWS_VISIBLE LWS_EXTERN void
 lws_get_peer_addresses(struct lws *wsi, lws_sockfd_type fd, char *name,
                        int name_len, char *rip, int rip_len);
 
 LWS_VISIBLE LWS_EXTERN const char *
 lws_get_peer_simple(struct lws *wsi, char *name, int namelen);
 #ifndef LWS_WITH_ESP8266
 
 LWS_VISIBLE LWS_EXTERN int
 lws_interface_to_sa(int ipv6, const char *ifname, struct sockaddr_in *addr,
                     size_t addrlen);
 #endif
 
 
 LWS_VISIBLE LWS_EXTERN int
 lws_snprintf(char *str, size_t size, const char *format, ...);
 
 LWS_VISIBLE LWS_EXTERN int
 lws_get_random(struct lws_context *context, void *buf, int len);
 LWS_VISIBLE LWS_EXTERN int LWS_WARN_UNUSED_RESULT
 lws_daemonize(const char *_lock_path);
 LWS_VISIBLE LWS_EXTERN const char * LWS_WARN_UNUSED_RESULT
 lws_get_library_version(void);
 
 LWS_VISIBLE LWS_EXTERN void *
 lws_wsi_user(struct lws *wsi);
 
 LWS_VISIBLE LWS_EXTERN int LWS_WARN_UNUSED_RESULT
 lws_parse_uri(char *p, const char **prot, const char **ads, int *port,
               const char **path);
 
 LWS_VISIBLE LWS_EXTERN unsigned long
 lws_now_secs(void);
 
 LWS_VISIBLE LWS_EXTERN struct lws_context * LWS_WARN_UNUSED_RESULT
 lws_get_context(const struct lws *wsi);
 
 LWS_VISIBLE LWS_EXTERN int LWS_WARN_UNUSED_RESULT
 lws_get_count_threads(struct lws_context *context);
 
 LWS_VISIBLE LWS_EXTERN struct lws * LWS_WARN_UNUSED_RESULT
 lws_get_parent(const struct lws *wsi);
 
 LWS_VISIBLE LWS_EXTERN struct lws * LWS_WARN_UNUSED_RESULT
 lws_get_child(const struct lws *wsi);
 
 
 /*
  * \deprecated DEPRECATED Note: this is not normally needed as a user api.
  * It's provided in case it is
  * useful when integrating with other app poll loop service code.
  */
 LWS_VISIBLE LWS_EXTERN int
 lws_read(struct lws *wsi, unsigned char *buf, size_t len);
 
 LWS_VISIBLE LWS_EXTERN void
 lws_set_allocator(void *(*realloc)(void *ptr, size_t size));
 
 
 LWS_VISIBLE LWS_EXTERN int LWS_WARN_UNUSED_RESULT
 lws_send_pipe_choked(struct lws *wsi);
 
 LWS_VISIBLE LWS_EXTERN int
 lws_is_final_fragment(struct lws *wsi);
 
 LWS_VISIBLE LWS_EXTERN unsigned char
 lws_get_reserved_bits(struct lws *wsi);
 
 LWS_VISIBLE LWS_EXTERN int LWS_WARN_UNUSED_RESULT
 lws_partial_buffered(struct lws *wsi);
 
 LWS_VISIBLE LWS_EXTERN int LWS_WARN_UNUSED_RESULT
 lws_frame_is_binary(struct lws *wsi);
 
 LWS_VISIBLE LWS_EXTERN int
 lws_is_ssl(struct lws *wsi);
 LWS_VISIBLE LWS_EXTERN int
 lws_is_cgi(struct lws *wsi);
 
 
 #ifdef LWS_SHA1_USE_OPENSSL_NAME
 #define lws_SHA1 SHA1
 #else
 
 LWS_VISIBLE LWS_EXTERN unsigned char *
 lws_SHA1(const unsigned char *d, size_t n, unsigned char *md);
 #endif
 
 LWS_VISIBLE LWS_EXTERN int
 lws_b64_encode_string(const char *in, int in_len, char *out, int out_size);
 LWS_VISIBLE LWS_EXTERN int
 lws_b64_decode_string(const char *in, char *out, int out_size);
 
 
 #ifdef LWS_WITH_CGI
 enum lws_enum_stdinouterr {
         LWS_STDIN = 0,
         LWS_STDOUT = 1,
         LWS_STDERR = 2,
 };
 
 enum lws_cgi_hdr_state {
         LCHS_HEADER,
         LCHS_CR1,
         LCHS_LF1,
         LCHS_CR2,
         LCHS_LF2,
         LHCS_PAYLOAD,
         LCHS_SINGLE_0A,
 };
 
 struct lws_cgi_args {
         struct lws **stdwsi; 
         enum lws_enum_stdinouterr ch; 
         unsigned char *data; 
         enum lws_cgi_hdr_state hdr_state; 
         int len; 
 };
 
 
 LWS_VISIBLE LWS_EXTERN int
 lws_cgi(struct lws *wsi, const char * const *exec_array,
         int script_uri_path_len, int timeout_secs,
         const struct lws_protocol_vhost_options *mp_cgienv);
 
 LWS_VISIBLE LWS_EXTERN int
 lws_cgi_write_split_stdout_headers(struct lws *wsi);
 
 LWS_VISIBLE LWS_EXTERN int
 lws_cgi_kill(struct lws *wsi);
 #endif
 
 
 
 struct lws_plat_file_ops {
         lws_filefd_type (*open)(struct lws *wsi, const char *filename,
                                 unsigned long *filelen, int flags);
         int (*close)(struct lws *wsi, lws_filefd_type fd);
         unsigned long (*seek_cur)(struct lws *wsi, lws_filefd_type fd,
                                   long offset_from_cur_pos);
         int (*read)(struct lws *wsi, lws_filefd_type fd, unsigned long *amount,
                     unsigned char *buf, unsigned long len);
         int (*write)(struct lws *wsi, lws_filefd_type fd, unsigned long *amount,
                      unsigned char *buf, unsigned long len);
         /* Add new things just above here ---^
          * This is part of the ABI, don't needlessly break compatibility */
 };
 
 LWS_VISIBLE LWS_EXTERN struct lws_plat_file_ops * LWS_WARN_UNUSED_RESULT
 lws_get_fops(struct lws_context *context);
 
 static LWS_INLINE lws_filefd_type LWS_WARN_UNUSED_RESULT
 lws_plat_file_open(struct lws *wsi, const char *filename,
                    unsigned long *filelen, int flags)
 {
         return lws_get_fops(lws_get_context(wsi))->open(wsi, filename,
                                                     filelen, flags);
 }
 
 static LWS_INLINE int
 lws_plat_file_close(struct lws *wsi, lws_filefd_type fd)
 {
         return lws_get_fops(lws_get_context(wsi))->close(wsi, fd);
 }
 
 static LWS_INLINE unsigned long
 lws_plat_file_seek_cur(struct lws *wsi, lws_filefd_type fd, long offset)
 {
         return lws_get_fops(lws_get_context(wsi))->seek_cur(wsi, fd, offset);
 }
 static LWS_INLINE int LWS_WARN_UNUSED_RESULT
 lws_plat_file_read(struct lws *wsi, lws_filefd_type fd, unsigned long *amount,
                    unsigned char *buf, unsigned long len)
 {
         return lws_get_fops(lws_get_context(wsi))->read(wsi, fd, amount, buf,
                                                         len);
 }
 static LWS_INLINE int LWS_WARN_UNUSED_RESULT
 lws_plat_file_write(struct lws *wsi, lws_filefd_type fd, unsigned long *amount,
                     unsigned char *buf, unsigned long len)
 {
         return lws_get_fops(lws_get_context(wsi))->write(wsi, fd, amount, buf,
                                                          len);
 }
 
 #ifdef LWS_WITH_SMTP
 
 enum lwsgs_smtp_states {
         LGSSMTP_IDLE, 
         LGSSMTP_CONNECTING, 
         LGSSMTP_CONNECTED, 
         LGSSMTP_SENT_HELO, 
         LGSSMTP_SENT_FROM, 
         LGSSMTP_SENT_TO, 
         LGSSMTP_SENT_DATA, 
         LGSSMTP_SENT_BODY, 
         LGSSMTP_SENT_QUIT, 
 };
 
 struct lws_email {
         void *data;
         uv_loop_t *loop;
         char email_smtp_ip[32]; 
         char email_helo[32];    
         char email_from[100];   
         char email_to[100];     
         unsigned int max_content_size;
         /* Fill all the callbacks before init */
 
         int (*on_next)(struct lws_email *email);
         int (*on_sent)(struct lws_email *email);
         int (*on_get_body)(struct lws_email *email, char *buf, int len);
         /* private things */
         uv_timer_t timeout_email; 
         enum lwsgs_smtp_states estate; 
         uv_connect_t email_connect_req; 
         uv_tcp_t email_client; 
         time_t email_connect_started; 
         char email_buf[256]; 
         char *content; 
 };
 
 LWS_VISIBLE LWS_EXTERN int
 lws_email_init(struct lws_email *email, uv_loop_t *loop, int max_content);
 
 LWS_VISIBLE LWS_EXTERN void
 lws_email_check(struct lws_email *email);
 LWS_VISIBLE LWS_EXTERN void
 lws_email_destroy(struct lws_email *email);
 
 #endif
 
 
 #ifdef __cplusplus
 }
 #endif
 
 #endif

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Function Documentation

§ external_baggage_free_on_destroy

§ fd_limit_per_thread

Detailed Description

Field Documentation

§ _unused

§ auth_mask