Preston_PLB
/
freeswitch
forked from Mirrors/freeswitch
1
0
Fork 0
Code Pull Requests Activity

Merge branch 'ws1' patch abyss to support websocket

This commit is contained in:
Seven Du 2013-07-29 23:55:47 +08:00
parent 39ad799683 253880f586
commit 771d79e313
4 changed files with 1054 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
src/mod/xml_int/mod_xml_rpc/Makefile
View File

@ -60,10 +60,12 @@ $(XMLRPC_DIR)/src/xmlrpc_server_abyss.o\
$(XMLRPC_DIR)/src/xmlrpc_server_cgi.o\
$(XMLRPC_DIR)/src/xmlrpc_string.o\
$(XMLRPC_DIR)/src/xmlrpc_struct.o\
$(XMLRPC_DIR)/lib/expat/xmltok/xmltok.o
$(XMLRPC_DIR)/lib/expat/xmltok/xmltok.o\
ws.o
LOCAL_CFLAGS = -w -I$(XMLRPC_DIR)/lib/expat/xmlparse -I$(XMLRPC_DIR)/lib/expat/xmltok -I$(XMLRPC_DIR) -I$(XMLRPC_DIR)/include
LOCAL_CFLAGS+= -I$(XMLRPC_DIR)/lib/abyss/src -I$(XMLRPC_DIR)/lib/util/include -D_THREAD -D__EXTENSIONS__
LOCAL_CFLAGS+= -I. -I../../../../libs/sofia-sip/libsofia-sip-ua/su
include $(BASE)/build/modmake.rules

175
src/mod/xml_int/mod_xml_rpc/mod_xml_rpc.c
View File

@ -26,6 +26,7 @@
* Anthony Minessale II <anthm@freeswitch.org>
* John Wehle <john@feith.com>
* Garmt Boekholt <garmt@cimico.com>
* Seven Du <dujinfang@gmail.com>
*
* mod_xml_rpc.c -- XML RPC
*
@ -69,6 +70,7 @@
#include <../lib/abyss/src/token.h>
#include <../lib/abyss/src/http.h>
#include <../lib/abyss/src/session.h>
#include "ws.h"
SWITCH_MODULE_LOAD_FUNCTION(mod_xml_rpc_load);
SWITCH_MODULE_SHUTDOWN_FUNCTION(mod_xml_rpc_shutdown);
@ -87,6 +89,7 @@ static struct {
switch_bool_t virtual_host;
TServer abyssServer;
xmlrpc_registry *registryP;
switch_bool_t enable_websocket;
} globals;
SWITCH_DECLARE_GLOBAL_STRING_FUNC(set_global_realm, globals.realm);
@ -126,6 +129,8 @@ static switch_status_t do_config(void)
default_domain = val;
} else if (!strcasecmp(var, "virtual-host")) {
globals.virtual_host = switch_true(val);
} else if (!strcasecmp(var, "enable-websocket")) {
globals.enable_websocket = switch_true(val);
}
}
}
@ -541,11 +546,160 @@ static abyss_bool http_directory_auth(TSession *r, char *domain_name)
return rval;
}
void stop_hook_event_handler(switch_event_t *event) {
char *json;
wsh_t *wsh = (TSession *)event->bind_user_data;
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_NOTICE, "got websocket::stophook, closing\n");
wsh->down++;
}
void event_handler(switch_event_t *event) {
char *json;
wsh_t *wsh = (TSession *)event->bind_user_data;
switch_event_serialize_json(event, &json);
ws_write_frame(wsh, WSOC_TEXT, json, strlen(json));
free(json);
}
#define MAX_EVENT_BIND_SLOTS SWITCH_EVENT_ALL
abyss_bool websocket_hook(TSession *r)
{
wsh_t wsh;
int ret;
int i;
ws_opcode_t opcode;
uint8_t *data;
switch_event_node_t *nodes[MAX_EVENT_BIND_SLOTS];
int node_count = 0;
char *p;
char *key = TableFind(&r->requestHeaderFields, "sec-websocket-key");
char *version = TableFind(&r->requestHeaderFields, "sec-websocket-version");
char *proto = TableFind(&r->requestHeaderFields, "sec-websocket-protocol");
char *upgrade = TableFind(&r->requestHeaderFields, "connection");
if (!key || !version || !proto || !upgrade) return FALSE;
if (strncasecmp(upgrade, "Upgrade", 7) || strncasecmp(proto, "websocket", 9)) return FALSE;
for (i = 0; i < r->requestHeaderFields.size; ++i) {
TTableItem * const fieldP = &r->requestHeaderFields.item[i];
const char * const fieldValue = fieldP->value;
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_INFO, "headers %s: %s\n", fieldP->name, fieldValue);
}
ret = ws_init(&wsh, r, NULL, 0);
if (ret != 0) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "websocket error %d\n", ret);
return FALSE;
}
while(!wsh.down && !wsh.handshake) {
ret = ws_handshake_kvp(&wsh, key, version, proto);
if (ret < 0) wsh.down = 1;
}
if (ret != 0) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "handshake error %d\n", ret);
return FALSE;
}
if (switch_event_bind_removable("websocket", SWITCH_EVENT_CUSTOM, "websocket::stophook", stop_hook_event_handler, &wsh, &nodes[node_count++]) != SWITCH_STATUS_SUCCESS) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Can't bind!\n");
node_count--;
}
while (!wsh.down) {
int bytes = ws_read_frame(&wsh, &opcode, &data);
if (bytes < 0) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_INFO, "%d %s\n", opcode, (char *)data);
switch_yield(1000);
continue;
}
switch (opcode) {
case WSOC_CLOSE:
ws_close(&wsh, 1000);
break;
case WSOC_CONTINUATION:
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "continue\n");
continue;
case WSOC_TEXT:
p = data;
if (!p) continue;
if (!strncasecmp(data, "event ", 6)) {
switch_event_types_t type;
char *subclass;
if (node_count == MAX_EVENT_BIND_SLOTS - 1) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "cannot subscribe more than %d events\n", node_count);
continue;
}
p += 6;
if (p = strchr(p, ' ')) p++;
if (!strncasecmp(p, "json ", 5)) {
p += 5;
} else if (!strncasecmp(p, "xml ", 4)) {
p += 4;
} else if (!strncasecmp(p, "plain ", 6)) {
p += 6;
}
if (!*p) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_WARNING, "missing event type in [%s]\n", data);
break;
} else {
}
if (subclass = strchr(p, ' ')) {
*subclass++ = '\0';
if (!*subclass) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "missing subclass\n");
continue;
}
} else {
subclass = SWITCH_EVENT_SUBCLASS_ANY;
}
if (switch_name_event(p, &type) != SWITCH_STATUS_SUCCESS) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Unknown event %s\n", p);
continue;
}
if (switch_event_bind_removable("websocket", type, subclass, event_handler, &wsh, &nodes[node_count++]) != SWITCH_STATUS_SUCCESS) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Can't bind!\n");
node_count--;
continue;
} else {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_INFO, "Bind %s\n", data);
}
}
break;
default:
break;
}
}
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "wsh.down = %d, node_count = %d\n", wsh.down, node_count);
switch_yield(2000);
while (--node_count >= 0) switch_event_unbind(&nodes[node_count]);
return FALSE;
}
abyss_bool auth_hook(TSession * r)
{
char *domain_name, *e;
abyss_bool ret = FALSE;
if (globals.enable_websocket && !strncmp(r->requestInfo.uri, "/socket", 7)) {
// Chrome has no Authorization support yet
// https://code.google.com/p/chromium/issues/detail?id=123862
return websocket_hook(r);
}
if (!strncmp(r->requestInfo.uri, "/domains/", 9)) {
domain_name = strdup(r->requestInfo.uri + 9);
switch_assert(domain_name);
@ -1059,7 +1213,8 @@ SWITCH_MODULE_RUNTIME_FUNCTION(mod_xml_rpc_runtime)
ServerAddHandler(&globals.abyssServer, auth_hook);
ServerSetKeepaliveTimeout(&globals.abyssServer, 5);
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_NOTICE, "Starting HTTP Port %d, DocRoot [%s]\n", globals.port, SWITCH_GLOBAL_dirs.htdocs_dir);
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_NOTICE, "Starting HTTP Port %d, DocRoot [%s]%s\n",
globals.port, SWITCH_GLOBAL_dirs.htdocs_dir, globals.enable_websocket ? " with websocket." : "");
ServerRun(&globals.abyssServer);
switch_yield(1000000);
@ -1069,10 +1224,28 @@ SWITCH_MODULE_RUNTIME_FUNCTION(mod_xml_rpc_runtime)
return SWITCH_STATUS_TERM;
}
void stop_all_websockets()
{
switch_event_t *event;
if (switch_event_create_subclass(&event, SWITCH_EVENT_CUSTOM, "websocket::stophook") != SWITCH_STATUS_SUCCESS) {
switch_log_printf(SWITCH_CHANNEL_LOG,SWITCH_LOG_ERROR, "Failed to create event!\n");
}
switch_event_add_header_string(event, SWITCH_STACK_BOTTOM, "stop", "now");
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_NOTICE, "stopping all websockets ...\n");
if (switch_event_fire(&event) != SWITCH_STATUS_SUCCESS) {
switch_log_printf(SWITCH_CHANNEL_LOG,SWITCH_LOG_ERROR, "Failed to fire the event!\n");
switch_event_destroy(&event);
return false;
}
}
/* upon module unload */
SWITCH_MODULE_SHUTDOWN_FUNCTION(mod_xml_rpc_shutdown)
{
/* Cann't find a way to stop the websockets, use this for a workaround before finding the real one that works */
stop_all_websockets();
/* this makes the worker thread (ServerRun) stop */
ServerTerminate(&globals.abyssServer);

773
src/mod/xml_int/mod_xml_rpc/ws.c Normal file
View File

@ -0,0 +1,773 @@
#include "ws.h"
#include <pthread.h>
#ifndef _MSC_VER
#include <fcntl.h>
#endif
#define SHA1_HASH_SIZE 20
struct globals_s globals;
#ifndef WSS_STANDALONE
void init_ssl(void)
{
SSL_library_init();
}
void deinit_ssl(void)
{
return;
}
#else
static unsigned long pthreads_thread_id(void);
static void pthreads_locking_callback(int mode, int type, const char *file, int line);
static pthread_mutex_t *lock_cs;
static long *lock_count;
static void thread_setup(void)
{
int i;
lock_cs = OPENSSL_malloc(CRYPTO_num_locks() * sizeof(pthread_mutex_t));
lock_count = OPENSSL_malloc(CRYPTO_num_locks() * sizeof(long));
for (i = 0; i < CRYPTO_num_locks(); i++) {
lock_count[i] = 0;
pthread_mutex_init(&(lock_cs[i]), NULL);
}
CRYPTO_set_id_callback(pthreads_thread_id);
CRYPTO_set_locking_callback(pthreads_locking_callback);
}
static void thread_cleanup(void)
{
int i;
CRYPTO_set_locking_callback(NULL);
for (i=0; i<CRYPTO_num_locks(); i++) {
pthread_mutex_destroy(&(lock_cs[i]));
}
OPENSSL_free(lock_cs);
OPENSSL_free(lock_count);
}
static void pthreads_locking_callback(int mode, int type, const char *file, int line)
{
if (mode & CRYPTO_LOCK) {
pthread_mutex_lock(&(lock_cs[type]));
lock_count[type]++;
} else {
pthread_mutex_unlock(&(lock_cs[type]));
}
}
static unsigned long pthreads_thread_id(void)
{
return (unsigned long) pthread_self();
}
void init_ssl(void) {
SSL_library_init();
OpenSSL_add_all_algorithms(); /* load & register cryptos */
SSL_load_error_strings(); /* load all error messages */
globals.ssl_method = TLSv1_server_method(); /* create server instance */
globals.ssl_ctx = SSL_CTX_new(globals.ssl_method); /* create context */
assert(globals.ssl_ctx);
/* set the local certificate from CertFile */
SSL_CTX_use_certificate_file(globals.ssl_ctx, globals.cert, SSL_FILETYPE_PEM);
/* set the private key from KeyFile */
SSL_CTX_use_PrivateKey_file(globals.ssl_ctx, globals.key, SSL_FILETYPE_PEM);
/* verify private key */
if ( !SSL_CTX_check_private_key(globals.ssl_ctx) ) {
abort();
}
SSL_CTX_set_cipher_list(globals.ssl_ctx, "HIGH:!DSS:!aNULL@STRENGTH");
thread_setup();
}
void deinit_ssl(void) {
thread_cleanup();
}
#endif
static const char c64[65] = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
static int cheezy_get_var(char *data, char *name, char *buf, size_t buflen)
{
char *p=data;
/* the old way didnt make sure that variable values were used for the name hunt
* and didnt ensure that only a full match of the variable name was used
*/
do {
if(!strncmp(p,name,strlen(name)) && *(p+strlen(name))==':') break;
} while((p = (strstr(p,"\n")+1))!=(char *)1);
if (p != (char *)1 && *p!='\0') {
char *v, *e = 0;
v = strchr(p, ':');
if (v) {
v++;
while(v && *v == ' ') {
v++;
}
if (v) {
e = strchr(v, '\r');
if (!e) {
e = strchr(v, '\n');
}
}
if (v && e) {
int cplen;
size_t len = e - v;
if (len > buflen - 1) {
cplen = buflen -1;
} else {
cplen = len;
}
strncpy(buf, v, cplen);
*(buf+cplen) = '\0';
return 1;
}
}
}
return 0;
}
static int b64encode(unsigned char *in, size_t ilen, unsigned char *out, size_t olen)
{
int y=0,bytes=0;
size_t x=0;
unsigned int b=0,l=0;
if(olen) {
}
for(x=0;x<ilen;x++) {
b = (b<<8) + in[x];
l += 8;
while (l >= 6) {
out[bytes++] = c64[(b>>(l-=6))%64];
if(++y!=72) {
continue;
}
//out[bytes++] = '\n';
y=0;
}
}
if (l > 0) {
out[bytes++] = c64[((b%16)<<(6-l))%64];
}
if (l != 0) while (l < 6) {
out[bytes++] = '=', l += 2;
}
return 0;
}
#ifdef NO_OPENSSL
static void sha1_digest(char *digest, unsigned char *in)
{
SHA1Context sha;
char *p;
int x;
SHA1Init(&sha);
SHA1Update(&sha, in, strlen(in));
SHA1Final(&sha, digest);
}
#else
static void sha1_digest(unsigned char *digest, char *in)
{
SHA_CTX sha;
SHA1_Init(&sha);
SHA1_Update(&sha, in, strlen(in));
SHA1_Final(digest, &sha);
}
#endif
int ws_handshake_kvp(wsh_t *wsh, char *key, char *version, char *proto)
{
char uri[256] = "";
char input[256] = "";
unsigned char output[SHA1_HASH_SIZE] = "";
char b64[256] = "";
char respond[512] = "";
issize_t bytes;
char *p, *e = 0;
if (!wsh->tsession) {
return -3;
}
if (!*key || !*version || !*proto) {
goto err;
}
snprintf(input, sizeof(input), "%s%s", key, WEBSOCKET_GUID);
sha1_digest(output, input);
b64encode((unsigned char *)output, SHA1_HASH_SIZE, (unsigned char *)b64, sizeof(b64));
snprintf(respond, sizeof(respond),
"HTTP/1.1 101 Switching Protocols\r\n"
"Upgrade: websocket\r\n"
"Connection: Upgrade\r\n"
"Sec-WebSocket-Accept: %s\r\n"
"Sec-WebSocket-Protocol: %s\r\n\r\n",
b64,
proto);
ws_raw_write(wsh, respond, strlen(respond));
wsh->handshake = 1;
return 0;
err:
snprintf(respond, sizeof(respond), "HTTP/1.1 400 Bad Request\r\n"
"Sec-WebSocket-Version: 13\r\n\r\n");
//printf("ERR:\n%s\n", respond);
ws_raw_write(wsh, respond, strlen(respond));
ws_close(wsh, WS_NONE);
return -1;
}
issize_t ws_raw_read(wsh_t *wsh, void *data, size_t bytes)
{
issize_t r;
int x = 0;
TConn *conn = wsh->tsession->connP;
#if 0
if (wsh->ssl) {
do {
r = SSL_read(wsh->ssl, data, bytes);
#ifndef _MSC_VER
if (x++) usleep(10000);
#else
if (x++) Sleep(10);
#endif
} while (r == -1 && SSL_get_error(wsh->ssl, r) == SSL_ERROR_WANT_READ && x < 100);
return r;
}
#endif
if (!wsh->handshake) {
r = wsh->tsession->connP->buffersize;
memcpy(data, conn->buffer.b, r);
printf("%s\n", conn->buffer.t);
ConnReadInit(conn);
return r;
} else {
const char *readError = NULL;
// printf(" pos=%d size=%d need=%d\n", conn->bufferpos, conn->buffersize, bytes);
r = conn->buffersize - conn->bufferpos;
if (r < 0) {
printf("348 Read Error %d!\n", r);
return 0;
} else if (r == 0) {
ConnRead(conn, 2, NULL, NULL, &readError);
if (readError) {
// printf("354 Read Error %s\n", readError);
xmlrpc_strfree(readError);
return 0;
}
r = conn->buffersize - conn->bufferpos;
}
if (r <= bytes) {
memcpy(data, conn->buffer.b + conn->bufferpos, r);
// ConnReadInit(conn);
conn->bufferpos = conn->buffersize;
ConnReadInit(conn);
return r;
} else {
memcpy(data, conn->buffer.b + conn->bufferpos, bytes);
conn->bufferpos += bytes;
return bytes;
}
}
return r;
}
issize_t ws_raw_write(wsh_t *wsh, void *data, size_t bytes)
{
size_t r;
if (wsh->ssl) {
do {
r = SSL_write(wsh->ssl, data, bytes);
} while (r == -1 && SSL_get_error(wsh->ssl, r) == SSL_ERROR_WANT_WRITE);
return r;
}
if (ConnWrite(wsh->tsession->connP, data, bytes)) {
return bytes;
} else {
return 0;
}
//if (r<0) {
//printf("wRITE FAIL: %s\n", strerror(errno));
//}
return r;
}
#ifdef _MSC_VER
static int setup_socket(ws_socket_t sock)
{
unsigned long v = 1;
if (ioctlsocket(sock, FIONBIO, &v) == SOCKET_ERROR) {
return -1;
}
return 0;
}
static int restore_socket(ws_socket_t sock)
{
unsigned long v = 0;
if (ioctlsocket(sock, FIONBIO, &v) == SOCKET_ERROR) {
return -1;
}
return 0;
}
#else
static int setup_socket(ws_socket_t sock)
{
int flags = fcntl(sock, F_GETFL, 0);
return fcntl(sock, F_SETFL, flags | O_NONBLOCK);
}
static int restore_socket(ws_socket_t sock)
{
int flags = fcntl(sock, F_GETFL, 0);
flags &= ~O_NONBLOCK;
return fcntl(sock, F_SETFL, flags);
}
#endif
int ws_init(wsh_t *wsh, ws_tsession_t *tsession, SSL_CTX *ssl_ctx, int close_sock)
{
memset(wsh, 0, sizeof(*wsh));
wsh->tsession = tsession;
if (!ssl_ctx) {
ssl_ctx = globals.ssl_ctx;
}
if (close_sock) {
wsh->close_sock = 1;
}
wsh->buflen = sizeof(wsh->buffer);
wsh->secure = ssl_ctx ? 1 : 0;
// setup_socket(sock);
if (wsh->secure) {
int code;
int sanity = 500;
wsh->ssl = SSL_new(ssl_ctx);
assert(wsh->ssl);
SSL_set_fd(wsh->ssl, wsh->sock);
do {
code = SSL_accept(wsh->ssl);
if (code == 1) {
break;
}
if (code == 0) {
return -1;
}
if (code < 0) {
if (code == -1 && SSL_get_error(wsh->ssl, code) != SSL_ERROR_WANT_READ) {
return -1;
}
}
#ifndef _MSC_VER
usleep(10000);
#else
Sleep(10);
#endif
} while (--sanity > 0);
if (!sanity) {
return -1;
}
}
/*
while (!wsh->down && !wsh->handshake) {
int r = ws_handshake(wsh);
if (r < 0) {
wsh->down = 1;
return -1;
}
}
*/
if (wsh->down) {
return -1;
}
return 0;
}
void ws_destroy(wsh_t *wsh)
{
if (!wsh) {
return;
}
if (!wsh->down) {
ws_close(wsh, WS_NONE);
}
if (wsh->down > 1) {
return;
}
wsh->down = 2;
if (wsh->ssl) {
int code;
do {
code = SSL_shutdown(wsh->ssl);
} while (code == -1 && SSL_get_error(wsh->ssl, code) == SSL_ERROR_WANT_READ);
SSL_free(wsh->ssl);
wsh->ssl = NULL;
}
}
issize_t ws_close(wsh_t *wsh, int16_t reason)
{
if (wsh->down) {
return -1;
}
wsh->down = 1;
if (reason && wsh->sock != ws_sock_invalid) {
uint16_t *u16;
uint8_t fr[4] = {WSOC_CLOSE | 0x80, 2, 0};
u16 = (uint16_t *) &fr[2];
*u16 = htons((int16_t)reason);
ws_raw_write(wsh, fr, 4);
}
restore_socket(wsh->sock);
if (wsh->close_sock) {
close(wsh->sock);
}
wsh->sock = ws_sock_invalid;
return reason * -1;
}
issize_t ws_read_frame(wsh_t *wsh, ws_opcode_t *oc, uint8_t **data)
{
issize_t need = 2;
char *maskp;
again:
need = 2;
maskp = NULL;
*data = NULL;
if (wsh->down) {
return -1;
}
if (!wsh->handshake) {
return ws_close(wsh, WS_PROTO_ERR);
}
if ((wsh->datalen = ws_raw_read(wsh, wsh->buffer, 14)) < need) {
while (!wsh->down && (wsh->datalen += ws_raw_read(wsh, wsh->buffer + wsh->datalen, 14 - wsh->datalen)) < need) ;
if (0 && (wsh->datalen += ws_raw_read(wsh, wsh->buffer + wsh->datalen, 14 - wsh->datalen)) < need) {
/* too small - protocol err */
return ws_close(wsh, WS_PROTO_ERR);
}
}
*oc = *wsh->buffer & 0xf;
switch(*oc) {
case WSOC_CLOSE:
{
wsh->plen = wsh->buffer[1] & 0x7f;
*data = (uint8_t *) &wsh->buffer[2];
return ws_close(wsh, 1000);
}
break;
case WSOC_CONTINUATION:
case WSOC_TEXT:
case WSOC_BINARY:
case WSOC_PING:
case WSOC_PONG:
{
//int fin = (wsh->buffer[0] >> 7) & 1;
int mask = (wsh->buffer[1] >> 7) & 1;
if (mask) {
need += 4;
if (need > wsh->datalen) {
/* too small - protocol err */
*oc = WSOC_CLOSE;
return ws_close(wsh, WS_PROTO_ERR);
}
}
wsh->plen = wsh->buffer[1] & 0x7f;
wsh->payload = &wsh->buffer[2];
if (wsh->plen == 127) {
uint64_t *u64;
need += 8;
if (need > wsh->datalen) {
/* too small - protocol err */
*oc = WSOC_CLOSE;
return ws_close(wsh, WS_PROTO_ERR);
}
u64 = (uint64_t *) wsh->payload;
wsh->payload += 8;
wsh->plen = ntohl((u_long)*u64);
} else if (wsh->plen == 126) {
uint16_t *u16;
need += 2;
if (need > wsh->datalen) {
/* too small - protocol err */
*oc = WSOC_CLOSE;
return ws_close(wsh, WS_PROTO_ERR);
}
u16 = (uint16_t *) wsh->payload;
wsh->payload += 2;
wsh->plen = ntohs(*u16);
}
if (mask) {
maskp = (char *)wsh->payload;
wsh->payload += 4;
}
need = (wsh->plen - (wsh->datalen - need));
if ((need + wsh->datalen) > (issize_t)wsh->buflen) {
/* too big - Ain't nobody got time fo' dat */
*oc = WSOC_CLOSE;
return ws_close(wsh, WS_DATA_TOO_BIG);
}
wsh->rplen = wsh->plen - need;
while(need) {
issize_t r = ws_raw_read(wsh, wsh->payload + wsh->rplen, need);
if (r < 1) {
/* invalid read - protocol err .. */
*oc = WSOC_CLOSE;
return ws_close(wsh, WS_PROTO_ERR);
}
wsh->datalen += r;
wsh->rplen += r;
need -= r;
}
if (mask && maskp) {
issize_t i;
for (i = 0; i < wsh->datalen; i++) {
wsh->payload[i] ^= maskp[i % 4];
}
}
if (*oc == WSOC_PING) {
ws_write_frame(wsh, WSOC_PONG, wsh->payload, wsh->rplen);
goto again;
}
*(wsh->payload+wsh->rplen) = '\0';
*data = (uint8_t *)wsh->payload;
//printf("READ[%ld][%d]-----------------------------:\n[%s]\n-------------------------------\n", wsh->rplen, *oc, (char *)*data);
return wsh->rplen;
}
break;
default:
{
/* invalid op code - protocol err .. */
*oc = WSOC_CLOSE;
return ws_close(wsh, WS_PROTO_ERR);
}
break;
}
}
issize_t ws_feed_buf(wsh_t *wsh, void *data, size_t bytes)
{
if (bytes + wsh->wdatalen > wsh->buflen) {
return -1;
}
memcpy(wsh->wbuffer + wsh->wdatalen, data, bytes);
wsh->wdatalen += bytes;
return bytes;
}
issize_t ws_send_buf(wsh_t *wsh, ws_opcode_t oc)
{
issize_t r = 0;
if (!wsh->wdatalen) {
return -1;
}
r = ws_write_frame(wsh, oc, wsh->wbuffer, wsh->wdatalen);
wsh->wdatalen = 0;
return r;
}
issize_t ws_write_frame(wsh_t *wsh, ws_opcode_t oc, void *data, size_t bytes)
{
uint8_t hdr[14] = { 0 };
size_t hlen = 2;
if (wsh->down) {
return -1;
}
//printf("WRITE[%ld]-----------------------------:\n[%s]\n-----------------------------------\n", bytes, (char *) data);
hdr[0] = (uint8_t)(oc | 0x80);
if (bytes < 126) {
hdr[1] = (uint8_t)bytes;
} else if (bytes < 0x10000) {
uint16_t *u16;
hdr[1] = 126;
hlen += 2;
u16 = (uint16_t *) &hdr[2];
*u16 = htons((uint16_t) bytes);
} else {
uint64_t *u64;
hdr[1] = 127;
hlen += 8;
u64 = (uint64_t *) &hdr[2];
*u64 = htonl(bytes);
}
if (ws_raw_write(wsh, (void *) &hdr[0], hlen) != (issize_t)hlen) {
return -1;
}
if (ws_raw_write(wsh, data, bytes) != (issize_t)bytes) {
return -2;
}
return bytes;
}

104
src/mod/xml_int/mod_xml_rpc/ws.h Normal file
View File

@ -0,0 +1,104 @@
#ifndef _WS_H
#define _WS_H
//#define WSS_STANDALONE 1
#define WEBSOCKET_GUID "258EAFA5-E914-47DA-95CA-C5AB0DC85B11"
#define B64BUFFLEN 1024
#include <sys/types.h>
#ifndef _MSC_VER
#include <arpa/inet.h>
#include <sys/wait.h>
#include <sys/socket.h>
#else
#pragma warning(disable:4996)
#endif
#include <string.h>
#include <unistd.h>
#include <string.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <assert.h>
#include <errno.h>
//#include "sha1.h"
#include <openssl/ssl.h>
#include <sofia-sip/su_types.h>
#include <../lib/abyss/src/session.h>
#include <../lib/abyss/src/conn.h>
typedef TSession ws_tsession_t;
struct globals_s {
const SSL_METHOD *ssl_method;
SSL_CTX *ssl_ctx;
char cert[512];
char key[512];
};
// extern struct globals_s globals;
typedef int ws_socket_t;
#define ws_sock_invalid -1
typedef enum {
WS_NONE = 0,
WS_NORMAL = 1000,
WS_PROTO_ERR = 1002,
WS_DATA_TOO_BIG = 1009
} ws_cause_t;
typedef enum {
WSOC_CONTINUATION = 0x0,
WSOC_TEXT = 0x1,
WSOC_BINARY = 0x2,
WSOC_CLOSE = 0x8,
WSOC_PING = 0x9,
WSOC_PONG = 0xA
} ws_opcode_t;
typedef struct wsh_s {
ws_socket_t sock;
char buffer[65536];
char wbuffer[65536];
size_t buflen;
issize_t datalen;
issize_t wdatalen;
char *payload;
issize_t plen;
issize_t rplen;
SSL *ssl;
int handshake;
uint8_t down;
int secure;
uint8_t close_sock;
ws_tsession_t *tsession;
} wsh_t;
issize_t ws_send_buf(wsh_t *wsh, ws_opcode_t oc);
issize_t ws_feed_buf(wsh_t *wsh, void *data, size_t bytes);
issize_t ws_raw_read(wsh_t *wsh, void *data, size_t bytes);
issize_t ws_raw_write(wsh_t *wsh, void *data, size_t bytes);
issize_t ws_read_frame(wsh_t *wsh, ws_opcode_t *oc, uint8_t **data);
issize_t ws_write_frame(wsh_t *wsh, ws_opcode_t oc, void *data, size_t bytes);
int ws_init(wsh_t *wsh, ws_tsession_t *tsession, SSL_CTX *ssl_ctx, int close_sock);
issize_t ws_close(wsh_t *wsh, int16_t reason);
void ws_destroy(wsh_t *wsh);
void init_ssl(void);
void deinit_ssl(void);
int ws_handshake_kvp(wsh_t *wsh, char *key, char *version, char *proto);
#ifndef _MSC_VER
static inline uint64_t get_unaligned_uint64(const void *p)
{
const struct { uint64_t d; } __attribute__((packed)) *pp = p;
return pp->d;
}
#endif
#endif