INCLUDE(FindPkgConfig)
PKG_CHECK_MODULES(json-c REQUIRED json-c)
PKG_CHECK_MODULES(libmicrohttpd REQUIRED libmicrohttpd)
+PKG_CHECK_MODULES(openssl REQUIRED openssl)
PKG_CHECK_MODULES(uuid REQUIRED uuid)
PKG_CHECK_MODULES(dbus REQUIRED dbus-1)
# Optional plugin dependencies
INCLUDE(FindThreads)
FIND_PACKAGE(Threads)
-SET(include_dirs ${INCLUDE_DIRS} ${CMAKE_SOURCE_DIR}/include ${json-c_INCLUDE_DIRS} ${libmicrohttpd_INCLUDE_DIRS} ${uuid_INCLUDE_DIRS} ${dbus_INCLUDE_DIRS} ${alsa_INCLUDE_DIRS} ${pulseaudio_INCLUDE_DIRS} ${librtlsdr_INCLUDE_DIRS} ${gupnp_INCLUDE_DIRS})
-SET(link_libraries ${json-c_LIBRARIES} ${libmicrohttpd_LIBRARIES} ${uuid_LIBRARIES} ${dbus_LIBRARIES} ${alsa_LIBRARIES} ${pulseaudio_LIBRARIES} ${librtlsdr_LIBRARIES} ${gupnp_LIBRARIES} ${CMAKE_THREAD_LIBS_INIT} ${libefence_LIBRARIES} -lmagic -lm -ldl)
+SET(include_dirs ${INCLUDE_DIRS} ${CMAKE_SOURCE_DIR}/include ${json-c_INCLUDE_DIRS} ${libmicrohttpd_INCLUDE_DIRS} ${uuid_INCLUDE_DIRS} ${dbus_INCLUDE_DIRS} ${alsa_INCLUDE_DIRS} ${pulseaudio_INCLUDE_DIRS} ${librtlsdr_INCLUDE_DIRS} ${gupnp_INCLUDE_DIRS} ${openssl_INCLUDE_DIRS})
+SET(link_libraries ${json-c_LIBRARIES} ${libmicrohttpd_LIBRARIES} ${uuid_LIBRARIES} ${dbus_LIBRARIES} ${alsa_LIBRARIES} ${pulseaudio_LIBRARIES} ${librtlsdr_LIBRARIES} ${gupnp_LIBRARIES} ${CMAKE_THREAD_LIBS_INIT} ${libefence_LIBRARIES} ${openssl_LIBRARIES} -lmagic -lm -ldl)
SET(plugin_install_dir ${CMAKE_INSTALL_PREFIX}/${CMAKE_INSTALL_LIBDIR}/afb)
ADD_DEFINITIONS(-DPLUGIN_INSTALL_DIR="${plugin_install_dir}")
rest-api.c
afb-method.c
afb-hreq.c
+ afb-websock.c
+ websock.c
helper-api.c)
INCLUDE_DIRECTORIES(${include_dirs})
return MHD_lookup_connection_value(hreq->connection, MHD_GET_ARGUMENT_KIND, name);
}
+const char *afb_hreq_get_header(struct afb_hreq *hreq, const char *name)
+{
+ return MHD_lookup_connection_value(hreq->connection, MHD_HEADER_KIND, name);
+}
+
struct afb_req_itf afb_hreq_itf = {
.get_cookie = (void*)afb_hreq_get_cookie,
.get_argument = (void*)afb_hreq_get_argument
AFB_session *session;
struct MHD_Connection *connection;
enum afb_method method;
+ const char *version;
const char *url;
size_t lenurl;
const char *tail;
extern int afb_hreq_redirect_to(struct afb_hreq *request, const char *url);
+extern const char *afb_hreq_get_cookie(struct afb_hreq *hreq, const char *name);
+
+extern const char *afb_hreq_get_argument(struct afb_hreq *hreq, const char *name);
+
+extern const char *afb_hreq_get_header(struct afb_hreq *hreq, const char *name);
+
extern struct afb_req_itf afb_hreq_itf;
--- /dev/null
+/*
+ * Copyright 2016 IoT.bzh
+ * Author: José Bollo <jose.bollo@iot.bzh>
+ *
+ * Inspired by the work of
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define _GNU_SOURCE
+#include <microhttpd.h>
+#include <assert.h>
+#include <errno.h>
+#include <sys/uio.h>
+
+#include <openssl/sha.h>
+
+#include "websock.h"
+
+#include "../include/local-def.h"
+
+
+#include "afb-method.h"
+#include "afb-hreq.h"
+
+static const char websocket_s[] = "websocket";
+static const char sec_websocket_key_s[] = "Sec-WebSocket-Key";
+static const char sec_websocket_version_s[] = "Sec-WebSocket-Version";
+static const char sec_websocket_accept_s[] = "Sec-WebSocket-Accept";
+static const char sec_websocket_protocol_s[] = "Sec-WebSocket-Protocol";
+static const char websocket_uuid[] = "258EAFA5-E914-47DA-95CA-C5AB0DC85B11";
+
+
+struct afb_websock
+{
+ int fd;
+ struct MHD_Connection *connection;
+ struct websock *ws;
+};
+
+static ssize_t afb_websock_writev(struct afb_websock *ws, const struct iovec *iov, int iovcnt)
+{
+ ssize_t rc;
+ do {
+ rc = writev(ws->fd, iov, iovcnt);
+ } while(rc == -1 && errno == EINTR);
+ return rc;
+}
+
+static ssize_t afb_websock_readv(struct afb_websock *ws, const struct iovec *iov, int iovcnt)
+{
+ ssize_t rc;
+ do {
+ rc = readv(ws->fd, iov, iovcnt);
+ } while(rc == -1 && errno == EINTR);
+ return rc;
+}
+
+static void afb_websock_disconnect(struct afb_websock *ws)
+{
+}
+
+static void afb_websock_on_close(struct afb_websock *ws, uint16_t code, size_t size)
+{
+}
+
+static void afb_websock_on_content(struct afb_websock *ws, int last, size_t size)
+{
+}
+
+static struct websock_itf afb_websock_itf = {
+ .writev = (void*)afb_websock_writev,
+ .readv = (void*)afb_websock_readv,
+ .disconnect = (void*)afb_websock_disconnect,
+
+ .on_ping = NULL,
+ .on_pong = NULL,
+ .on_close = (void*)afb_websock_on_close,
+ .on_text = (void*)afb_websock_on_content,
+ .on_binary = (void*)afb_websock_on_content,
+ .on_continue = (void*)afb_websock_on_content
+};
+
+static void enc64(unsigned char *in, char *out)
+{
+ static const char tob64[] =
+ "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
+ "abcdefghijklmnopqrstuvwxyz"
+ "0123456789+/";
+ out[0] = tob64[in[0] >> 2];
+ out[1] = tob64[((in[0] & 0x03) << 4) | ((in[1] & 0xf0) >> 4)];
+ out[2] = tob64[((in[1] & 0x0f) << 2) | ((in[2] & 0xc0) >> 6)];
+ out[3] = tob64[in[2] & 0x3f];
+}
+
+static void make_accept_value(const char *key, char result[29])
+{
+ unsigned char md[SHA_DIGEST_LENGTH+1];
+ size_t len = strlen(key);
+ char *buffer = alloca(len + sizeof websocket_uuid - 1);
+ memcpy(buffer, key, len);
+ memcpy(buffer + len, websocket_uuid, sizeof websocket_uuid - 1);
+ SHA1((const unsigned char *)buffer, (unsigned long)(len + sizeof websocket_uuid - 1), md);
+ assert(SHA_DIGEST_LENGTH == 20);
+ md[20] = 0;
+ enc64(&md[0], &result[0]);
+ enc64(&md[3], &result[4]);
+ enc64(&md[6], &result[8]);
+ enc64(&md[9], &result[12]);
+ enc64(&md[12], &result[16]);
+ enc64(&md[15], &result[20]);
+ enc64(&md[18], &result[24]);
+ result[27] = '=';
+ result[28] = 0;
+}
+
+static int handshake(struct afb_hreq *hreq, struct afb_websock **ws)
+{
+ const char *connection, *upgrade, *key, *version, *protocols;
+ char acceptval[29];
+ int vernum;
+ struct MHD_Response *response;
+
+ upgrade = afb_hreq_get_header(hreq, MHD_HTTP_HEADER_UPGRADE);
+ if (upgrade == NULL || strcasecmp(upgrade, websocket_s))
+ return 0;
+
+ connection = afb_hreq_get_header(hreq, MHD_HTTP_HEADER_CONNECTION);
+ if (connection == NULL || strcasecmp (connection, MHD_HTTP_HEADER_UPGRADE))
+ return 0;
+
+ if(hreq->method != afb_method_get || strcasecmp(hreq->version, MHD_HTTP_VERSION_1_1))
+ return 0;
+
+ key = afb_hreq_get_header(hreq, sec_websocket_key_s);
+ version = afb_hreq_get_header(hreq, sec_websocket_version_s);
+ if (key == NULL || version == NULL)
+ return 0;
+
+ vernum = atoi(version);
+ if (vernum != 13)
+ return 0;
+
+ if (*ws == NULL)
+ return 1;
+
+ protocols = afb_hreq_get_header(hreq, sec_websocket_protocol_s);
+
+ if (vernum != 13) {
+ response = MHD_create_response_from_data(0,NULL,0,0);
+ MHD_add_response_header (response, sec_websocket_version_s, "13");
+ MHD_queue_response (hreq->connection, MHD_HTTP_BAD_REQUEST, response);
+ MHD_destroy_response (response);
+ return 2;
+ }
+
+ make_accept_value(key, acceptval);
+ response = MHD_create_response_from_data(0,NULL,0,0);
+ MHD_add_response_header (response, sec_websocket_accept_s, acceptval);
+ MHD_add_response_header (response, MHD_HTTP_HEADER_CONNECTION, MHD_HTTP_HEADER_UPGRADE);
+ MHD_add_response_header (response, MHD_HTTP_HEADER_UPGRADE, websocket_s);
+ MHD_queue_response (hreq->connection, MHD_HTTP_SWITCHING_PROTOCOLS, response);
+ MHD_destroy_response (response);
+
+ return 1;
+}
+
+int afb_websock_is_handshake(struct afb_hreq *hreq)
+{
+ return handshake(hreq, NULL);
+}
+
+int afb_websock_open_if(struct afb_hreq *hreq, struct afb_websock **ws)
+{
+ assert(*ws != NULL);
+ *ws = NULL;
+ return handshake(hreq, ws);
+}
+
+int afb_websock_open(struct afb_hreq *hreq, struct afb_websock **ws)
+{
+ int rc = afb_websock_open_if(hreq, ws);
+ return rc ? rc : -1;
+}
+
request.session = cls;
request.connection = connection;
request.method = method;
+ request.version = version;
request.tail = request.url = url;
request.lentail = request.lenurl = strlen(url);
request.recorder = (struct afb_hreq **)recorder;
--- /dev/null
+/*
+ * Copyright 2016 iot.bzh
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/*
+ * This work is a far adaptation of apache-websocket:
+ * origin: https://github.com/disconnect/apache-websocket
+ * commit: cfaef071223f11ba016bff7e1e4b7c9e5df45b50
+ * Copyright 2010-2012 self.disconnect (APACHE-2)
+ */
+
+#include <stdlib.h>
+#include <stdint.h>
+#include <errno.h>
+#include <string.h>
+#include <sys/uio.h>
+
+#include "websock.h"
+
+#define BLOCK_DATA_SIZE 4096
+
+#define FRAME_GET_FIN(BYTE) (((BYTE) >> 7) & 0x01)
+#define FRAME_GET_RSV1(BYTE) (((BYTE) >> 6) & 0x01)
+#define FRAME_GET_RSV2(BYTE) (((BYTE) >> 5) & 0x01)
+#define FRAME_GET_RSV3(BYTE) (((BYTE) >> 4) & 0x01)
+#define FRAME_GET_OPCODE(BYTE) ( (BYTE) & 0x0F)
+#define FRAME_GET_MASK(BYTE) (((BYTE) >> 7) & 0x01)
+#define FRAME_GET_PAYLOAD_LEN(BYTE) ( (BYTE) & 0x7F)
+
+#define FRAME_SET_FIN(BYTE) (((BYTE) & 0x01) << 7)
+#define FRAME_SET_OPCODE(BYTE) ((BYTE) & 0x0F)
+#define FRAME_SET_MASK(BYTE) (((BYTE) & 0x01) << 7)
+#define FRAME_SET_LENGTH(X64, IDX) (unsigned char)(((X64) >> ((IDX)*8)) & 0xFF)
+
+#define OPCODE_CONTINUATION 0x0
+#define OPCODE_TEXT 0x1
+#define OPCODE_BINARY 0x2
+#define OPCODE_CLOSE 0x8
+#define OPCODE_PING 0x9
+#define OPCODE_PONG 0xA
+
+#define STATE_INIT 0
+#define STATE_START 1
+#define STATE_LENGTH 2
+#define STATE_DATA 3
+#define STATE_CLOSED 4
+
+struct websock {
+ int state;
+ uint64_t maxlength;
+ int lenhead, szhead;
+ uint64_t length;
+ uint32_t mask;
+ unsigned char header[14]; /* 2 + 8 + 4 */
+ const struct websock_itf *itf;
+ void *closure;
+};
+
+static ssize_t ws_writev(struct websock *ws, const struct iovec *iov, int iovcnt)
+{
+ return ws->itf->writev(ws->closure, iov, iovcnt);
+}
+
+static ssize_t ws_readv(struct websock *ws, const struct iovec *iov, int iovcnt)
+{
+ return ws->itf->readv(ws->closure, iov, iovcnt);
+}
+
+#if 0
+static ssize_t ws_write(struct websock *ws, const void *buffer, size_t buffer_size)
+{
+ struct iovec iov;
+ iov.iov_base = (void *)buffer; /* const cast */
+ iov.iov_len = buffer_size;
+ return ws_writev(ws, &iov, 1);
+}
+#endif
+
+static ssize_t ws_read(struct websock *ws, void *buffer, size_t buffer_size)
+{
+ struct iovec iov;
+ iov.iov_base = buffer;
+ iov.iov_len = buffer_size;
+ return ws_readv(ws, &iov, 1);
+}
+
+static ssize_t websock_send(struct websock *ws, unsigned char opcode,
+ const void *buffer, size_t buffer_size)
+{
+ struct iovec iov[2];
+ size_t pos;
+ ssize_t rc;
+ unsigned char header[32];
+
+ if (ws->state == STATE_CLOSED)
+ return 0;
+
+ pos = 0;
+ header[pos++] = (unsigned char)(FRAME_SET_FIN(1) | FRAME_SET_OPCODE(opcode));
+ buffer_size = (uint64_t) buffer_size;
+ if (buffer_size < 126) {
+ header[pos++] =
+ FRAME_SET_MASK(0) | FRAME_SET_LENGTH(buffer_size, 0);
+ } else {
+ if (buffer_size < 65536) {
+ header[pos++] = FRAME_SET_MASK(0) | 126;
+ } else {
+ header[pos++] = FRAME_SET_MASK(0) | 127;
+ header[pos++] = FRAME_SET_LENGTH(buffer_size, 7);
+ header[pos++] = FRAME_SET_LENGTH(buffer_size, 6);
+ header[pos++] = FRAME_SET_LENGTH(buffer_size, 5);
+ header[pos++] = FRAME_SET_LENGTH(buffer_size, 4);
+ header[pos++] = FRAME_SET_LENGTH(buffer_size, 3);
+ header[pos++] = FRAME_SET_LENGTH(buffer_size, 2);
+ }
+ header[pos++] = FRAME_SET_LENGTH(buffer_size, 1);
+ header[pos++] = FRAME_SET_LENGTH(buffer_size, 0);
+ }
+
+ iov[0].iov_base = header;
+ iov[0].iov_len = pos;
+ iov[1].iov_base = (void *)buffer; /* const cast */
+ iov[1].iov_len = buffer_size;
+
+ rc = ws_writev(ws, iov, 1 + !!buffer_size);
+
+ if (opcode == OPCODE_CLOSE) {
+ ws->length = 0;
+ ws->state = STATE_CLOSED;
+ ws->itf->disconnect(ws->closure);
+ }
+ return rc;
+}
+
+void websock_close(struct websock *ws)
+{
+ websock_send(ws, OPCODE_CLOSE, NULL, 0);
+}
+
+void websock_close_code(struct websock *ws, uint16_t code)
+{
+ unsigned char buffer[2];
+ /* Send server-side closing handshake */
+ buffer[0] = (unsigned char)((code >> 8) & 0xFF);
+ buffer[1] = (unsigned char)(code & 0xFF);
+ websock_send(ws, OPCODE_CLOSE, buffer, 2);
+}
+
+void websock_ping(struct websock *ws)
+{
+ websock_send(ws, OPCODE_PING, NULL, 0);
+}
+
+void websock_pong(struct websock *ws)
+{
+ websock_send(ws, OPCODE_PONG, NULL, 0);
+}
+
+void websock_text(struct websock *ws, const char *text, size_t length)
+{
+ websock_send(ws, OPCODE_TEXT, NULL, 0);
+}
+
+void websock_binary(struct websock *ws, const void *data, size_t length)
+{
+ websock_send(ws, OPCODE_BINARY, NULL, 0);
+}
+
+static int read_header(struct websock *ws)
+{
+ if (ws->lenhead < ws->szhead) {
+ ssize_t rbc =
+ ws_read(ws, &ws->header[ws->lenhead], (size_t)(ws->szhead - ws->lenhead));
+ if (rbc < 0)
+ return -1;
+ ws->lenhead += (int)rbc;
+ }
+ return 0;
+}
+
+int websock_dispatch(struct websock *ws)
+{
+ loop:
+ switch (ws->state) {
+ case STATE_INIT:
+ ws->lenhead = 0;
+ ws->szhead = 2;
+ ws->state = STATE_START;
+
+ case STATE_START:
+ /* read the header */
+ if (!read_header(ws))
+ return -1;
+ else if (ws->lenhead < ws->szhead)
+ return 0;
+ /* sanity checks */
+ if (FRAME_GET_RSV1(ws->header[0]) != 0)
+ goto protocol_error;
+ if (FRAME_GET_RSV2(ws->header[0]) != 0)
+ goto protocol_error;
+ if (FRAME_GET_RSV3(ws->header[0]) != 0)
+ goto protocol_error;
+ /* fast track */
+ switch (FRAME_GET_OPCODE(ws->header[0])) {
+ case OPCODE_CONTINUATION:
+ case OPCODE_TEXT:
+ case OPCODE_BINARY:
+ break;
+ case OPCODE_CLOSE:
+ if (FRAME_GET_MASK(ws->header[1]))
+ goto protocol_error;
+ if (FRAME_GET_PAYLOAD_LEN(ws->header[1]) == 1)
+ goto protocol_error;
+ if (FRAME_GET_PAYLOAD_LEN(ws->header[1]))
+ ws->szhead += 2;
+ break;
+ case OPCODE_PING:
+ if (FRAME_GET_MASK(ws->header[1]))
+ goto protocol_error;
+ if (FRAME_GET_PAYLOAD_LEN(ws->header[1]) != 0)
+ goto protocol_error;
+ if (ws->itf->on_ping)
+ ws->itf->on_ping(ws->closure);
+ else
+ websock_pong(ws);
+ ws->state = STATE_INIT;
+ goto loop;
+ case OPCODE_PONG:
+ if (FRAME_GET_MASK(ws->header[1]))
+ goto protocol_error;
+ if (FRAME_GET_PAYLOAD_LEN(ws->header[1]) != 0)
+ goto protocol_error;
+ if (ws->itf->on_pong)
+ ws->itf->on_pong(ws->closure);
+ ws->state = STATE_INIT;
+ goto loop;
+ default:
+ goto protocol_error;
+ }
+ /* update heading size */
+ switch (FRAME_GET_PAYLOAD_LEN(ws->header[1])) {
+ case 127:
+ ws->szhead += 6;
+ case 126:
+ ws->szhead += 2;
+ default:
+ ws->szhead += 4 * FRAME_GET_MASK(ws->header[1]);
+ }
+ ws->state = STATE_LENGTH;
+
+ case STATE_LENGTH:
+ /* continue to read the header */
+ if (!read_header(ws))
+ return -1;
+ else if (ws->lenhead < ws->szhead)
+ return 0;
+ /* compute header values */
+ switch (FRAME_GET_PAYLOAD_LEN(ws->header[1])) {
+ case 127:
+ ws->length = (((uint64_t) ws->header[2]) << 56)
+ | (((uint64_t) ws->header[3]) << 48)
+ | (((uint64_t) ws->header[4]) << 40)
+ | (((uint64_t) ws->header[5]) << 32)
+ | (((uint64_t) ws->header[6]) << 24)
+ | (((uint64_t) ws->header[7]) << 16)
+ | (((uint64_t) ws->header[8]) << 8)
+ | (uint64_t) ws->header[9];
+ break;
+ case 126:
+ ws->length = (((uint64_t) ws->header[2]) << 8)
+ | (uint64_t) ws->header[3];
+ break;
+ default:
+ ws->length = FRAME_GET_PAYLOAD_LEN(ws->header[1]);
+ break;
+ }
+ if (ws->length > ws->maxlength)
+ goto too_long_error;
+ if (FRAME_GET_MASK(ws->header[1])) {
+ ((unsigned char *)&ws->mask)[0] = ws->header[ws->szhead - 4];
+ ((unsigned char *)&ws->mask)[1] = ws->header[ws->szhead - 3];
+ ((unsigned char *)&ws->mask)[2] = ws->header[ws->szhead - 2];
+ ((unsigned char *)&ws->mask)[3] = ws->header[ws->szhead - 1];
+ } else
+ ws->mask = 0;
+ ws->state = STATE_DATA;
+ switch (FRAME_GET_OPCODE(ws->header[0])) {
+ case OPCODE_CONTINUATION:
+ ws->itf->on_continue(ws->closure,
+ FRAME_GET_FIN(ws->header[0]),
+ (size_t) ws->length);
+ break;
+ case OPCODE_TEXT:
+ ws->itf->on_text(ws->closure,
+ FRAME_GET_FIN(ws->header[0]),
+ (size_t) ws->length);
+ break;
+ case OPCODE_BINARY:
+ ws->itf->on_binary(ws->closure,
+ FRAME_GET_FIN(ws->header[0]),
+ (size_t) ws->length);
+ break;
+ case OPCODE_CLOSE:
+ ws->state = STATE_CLOSED;
+ if (ws->length)
+ ws->itf->on_close(ws->closure,
+ (uint16_t)((((uint16_t) ws-> header[2]) << 8) | ((uint16_t) ws->header[3])),
+ (size_t) ws->length);
+ else
+ ws->itf->on_close(ws->closure,
+ STATUS_CODE_UNSET, 0);
+ ws->itf->disconnect(ws->closure);
+ return 0;
+ }
+ break;
+
+ case STATE_DATA:
+ if (ws->length)
+ return 0;
+ ws->state = STATE_INIT;
+ break;
+
+ case STATE_CLOSED:
+ return 0;
+ }
+ goto loop;
+
+ too_long_error:
+ websock_close_code(ws, STATUS_CODE_MESSAGE_TOO_LARGE);
+ return 0;
+
+ protocol_error:
+ websock_close_code(ws, STATUS_CODE_PROTOCOL_ERROR);
+ return 0;
+}
+
+ssize_t websock_read(struct websock * ws, void *buffer, size_t size)
+{
+ uint32_t mask, *b32;
+ uint8_t m, *b8;
+ ssize_t rc;
+
+ if (ws->state != STATE_DATA && ws->state != STATE_CLOSED)
+ return 0;
+
+ if (size > ws->length)
+ size = (size_t) ws->length;
+
+ rc = ws_read(ws, buffer, size);
+ if (rc > 0) {
+ size = (size_t) rc;
+ ws->length -= size;
+
+ if (ws->mask) {
+ mask = ws->mask;
+ b8 = buffer;
+ while (size && ((sizeof(uint32_t) - 1) & (uintptr_t) b8)) {
+ m = ((uint8_t *) & mask)[0];
+ ((uint8_t *) & mask)[0] = ((uint8_t *) & mask)[1];
+ ((uint8_t *) & mask)[1] = ((uint8_t *) & mask)[2];
+ ((uint8_t *) & mask)[2] = ((uint8_t *) & mask)[3];
+ ((uint8_t *) & mask)[3] = m;
+ *b8++ ^= m;
+ size--;
+ }
+ b32 = (uint32_t *) b8;
+ while (size >= sizeof(uint32_t)) {
+ *b32++ ^= m;
+ size -= sizeof(uint32_t);
+ }
+ b8 = (uint8_t *) b32;
+ while (size) {
+ m = ((uint8_t *) & mask)[0];
+ ((uint8_t *) & mask)[0] = ((uint8_t *) & mask)[1];
+ ((uint8_t *) & mask)[1] = ((uint8_t *) & mask)[2];
+ ((uint8_t *) & mask)[2] = ((uint8_t *) & mask)[3];
+ ((uint8_t *) & mask)[3] = m;
+ *b8++ ^= m;
+ size--;
+ }
+ ws->mask = mask;
+ }
+ }
+ return rc;
+}
+
+void websock_drop(struct websock *ws)
+{
+ char buffer[4096];
+
+ while (ws->length && ws_read(ws, buffer, sizeof buffer) >= 0) ;
+}
+
+struct websock *websock_create(const struct websock_itf *itf, void *closure)
+{
+ struct websock *result = calloc(1, sizeof *result);
+ if (result) {
+ result->itf = itf;
+ result->closure = closure;
+ }
+ return result;
+}
+
+void websock_destroy(struct websock *ws)
+{
+ free(ws);
+}
--- /dev/null
+/*
+ * Copyright 2016 iot.bzh
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/*
+ * This work is a far adaptation of apache-websocket:
+ * origin: https://github.com/disconnect/apache-websocket
+ * commit: cfaef071223f11ba016bff7e1e4b7c9e5df45b50
+ * Copyright 2010-2012 self.disconnect (APACHE-2)
+ */
+
+struct iovec;
+
+#define STATUS_CODE_UNSET 0
+#define STATUS_CODE_OK 1000
+#define STATUS_CODE_GOING_AWAY 1001
+#define STATUS_CODE_PROTOCOL_ERROR 1002
+#define STATUS_CODE_RESERVED 1004 /* Protocol 8: frame too large */
+#define STATUS_CODE_INVALID_UTF8 1007
+#define STATUS_CODE_POLICY_VIOLATION 1008
+#define STATUS_CODE_MESSAGE_TOO_LARGE 1009
+#define STATUS_CODE_INTERNAL_ERROR 1011
+
+struct websock_itf {
+ ssize_t (*writev) (void *, const struct iovec *, int);
+ ssize_t (*readv) (void *, const struct iovec *, int);
+ void (*disconnect) (void *);
+
+ void (*on_ping) (void *);
+ void (*on_pong) (void *);
+ void (*on_close) (void *, uint16_t code, size_t size);
+ void (*on_text) (void *, int last, size_t size);
+ void (*on_binary) (void *, int last, size_t size);
+ void (*on_continue) (void *, int last, size_t size);
+};
+
+struct websock;
+
+void websock_close(struct websock *ws);
+void websock_close_code(struct websock *ws, uint16_t code);
+
+void websock_ping(struct websock *ws);
+void websock_pong(struct websock *ws);
+void websock_text(struct websock *ws, const char *text, size_t length);
+void websock_binary(struct websock *ws, const void *data, size_t length);
+
+ssize_t websock_read(struct websock *ws, void *buffer, size_t size);
+void websock_drop(struct websock *ws);
+
+int websock_dispatch(struct websock *ws);
+
+struct websock *websock_create(const struct websock_itf *itf, void *closure);
+void websock_destroy(struct websock *ws);
Code Review / src / app-framework-binder.git / commitdiff