--- /dev/null
+/*
+ * Copyright 2016 IoT.bzh
+ * Author: José Bollo <jose.bollo@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.
+ */
+
+#define _GNU_SOURCE
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <unistd.h>
+#include <assert.h>
+#include <errno.h>
+#include <string.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <netdb.h>
+
+#include "afb-wsj1.h"
+
+/**************** WebSocket handshake ****************************/
+
+static const char *compkeys[32] = {
+ "lYKr2sn9+ILcLpkqdrE2VQ==", "G5J7ncQnmS/MubIYcqKWM+E6k8I=",
+ "gjN6eOU/6Yy7dBTJ+EaQSw==", "P5QzN7mRt4DeRWxKdG7s4/NCEwk=",
+ "ziLin6OQ0/a1+cGaI9Mupg==", "yvpxcFJAGam6huL77vz34CdShyU=",
+ "KMfd2bHKah0U5mk2Kg/LIg==", "lyYxfDP5YunhkBF+nAWb/w6K4yg=",
+ "fQ/ISF1mNCPRMyAj3ucqNg==", "91YY1EUelb4eMU24Z8WHhJ9cHmc=",
+ "RHlfiVVE1lM1AJnErI8dFg==", "UdZQc0JaihQJV5ETCZ84Av88pxQ=",
+ "NVy3L2ujXN7v3KEJwK92ww==", "+dE7iITxhExjBtf06VYNWChHqx8=",
+ "cCNAgttlgELfbDDIfhujww==", "W2JiswqbTAXx5u84EtjbtqAW2Bg=",
+ "K+oQvEDWJP+WXzRS5BJDFw==", "szgW10a9AuD+HtfS4ylaqWfzWAs=",
+ "nmg43S4DpVaxye+oQv9KTw==", "8XK74jB9xFfTzzl0wTqW04k3tPE=",
+ "LIqZ23sEppbF4YJR9LQ4/w==", "f8lJBQEbR8QmmvPHZpA0smlIeeA=",
+ "WY1vvvY2j/3V9DAGW3ZZcA==", "lROlE4vL4cjU1Vnk6rISc9gVKN0=",
+ "Ia+dgHnA9QaBrbxuqh4wgQ==", "GiGjxFdSaF0EGTl2cjvFsVmJnfM=",
+ "MfpIVG082jFTV7SxTNNijQ==", "f5I2h53hBsT5ES3EHhnxAJ2nqsw=",
+ "kFumnAw5d/WctG0yAUHPiQ==", "aQQmOjoABl7mrbliTPS1bOkndOs=",
+ "MHiEc+Qc8w/SJ3zMHEM8pA==", "FVCxLBmoil3gY0jSX3aNJ6kR/t4="
+};
+
+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 vseparators[] = " \t,";
+
+/* get randomly a pair of key/accept value */
+static void getkeypair(const char **key, const char **ack)
+{
+ int r;
+ r = rand();
+ while (r > 15)
+ r = (r & 15) + (r >> 4);
+ r = (r & 15) << 1;
+ *key = compkeys[r];
+ *ack = compkeys[r+1];
+}
+
+/* joins the strings using the separator */
+static char *strjoin(int count, const char **strings, const char *separ)
+{
+ char *result, *iter;
+ size_t length;
+ int idx;
+
+ /* creates the count if needed */
+ if (count < 0)
+ for(count = 0 ; strings[count] != NULL ; count++);
+
+ /* compute the length of the result */
+ length = 0;
+ if (count != 0) {
+ }
+
+ /* allocates the result */
+ result = malloc(length + 1);
+ if (result == NULL)
+ errno = ENOMEM;
+ else {
+ /* create the result */
+ if (count != 0) {
+ iter = stpcpy(result, strings[idx = 0]);
+ while (++idx < count)
+ iter = stpcpy(stpcpy(iter, separ), strings[idx]);
+ // assert(iter - result == length);
+ }
+ result[length] = 0;
+ }
+ return result;
+}
+
+/* creates the http message for the request */
+static int make_request(char **request, const char *path, const char *key, const char *protocols)
+{
+ int rc = asprintf(request,
+ "GET %s HTTP1.1\r\n"
+ "Upgrade: websocket\r\n"
+ "Connection: Upgrade\r\n"
+ "Sec-WebSocket-Version: 13\r\n"
+ "Sec-WebSocket-Key: %s\r\n"
+ "Sec-WebSocket-Protocol: %s\r\n"
+ "Content-Length: 0\r\n"
+ "\r\n"
+ , path
+ , key
+ , protocols
+ );
+ if (rc < 0) {
+ errno = ENOMEM;
+ *request = NULL;
+ return -1;
+ }
+ return rc;
+}
+
+/* create the request and send it to fd, returns the expected accept string */
+static const char *send_request(int fd, const char **protocols, const char *path)
+{
+ const char *key, *ack;
+ char *protolist, *request;
+ int length, rc;
+
+ /* make the list of accepted protocols */
+ protolist = strjoin(-1, protocols, ", ");
+ if (protolist == NULL)
+ return NULL;
+
+ /* create the request */
+ getkeypair(&key, &ack);
+ length = make_request(&request, path, key, protolist);
+ free(protolist);
+ if (length < 0)
+ return NULL;
+
+ /* send the request */
+ do { rc = (int)write(fd, request, length); } while(rc < 0 && errno == EINTR);
+ free(request);
+ return rc < 0 ? NULL : ack;
+}
+
+/* read a line not efficiently but without buffering */
+static int receive_line(int fd, char *line, int size)
+{
+ int rc, length = 0, cr = 0;
+ for(;;) {
+ if (length >= size) {
+ errno = EFBIG;
+ return -1;
+ }
+ do { rc = (int)read(fd, line + length, 1); } while (rc < 0 && errno == EINTR);
+ if (rc < 0)
+ return -1;
+ if (line[length] == '\r')
+ cr = 1;
+ else if (cr != 0 && line[length] == '\n') {
+ line[--length] = 0;
+ return length;
+ } else
+ cr = 0;
+ length++;
+ }
+}
+
+/* check a header */
+static inline int isheader(const char *head, size_t klen, const char *key)
+{
+ return strncasecmp(head, key, klen) == 0 && key[klen] == 0;
+}
+
+/* receives and scan the response */
+static int receive_response(int fd, const char **protocols, const char *ack)
+{
+ char line[4096], *it;
+ int rc, haserr, result = -1;
+ size_t len, clen;
+
+ /* check the header line to be something like: "HTTP/1.1 101 Switching Protocols" */
+ rc = receive_line(fd, line, (int)sizeof(line));
+ if (rc < 0)
+ goto error;
+ len = strcspn(line, " ");
+ if (len != 8 || 0 != strncmp(line, "HTTP/1.1", 8))
+ goto error;
+ it = line + len;
+ len = strspn(line, " ");
+ if (len == 0)
+ goto error;
+ it += len;
+ len = strcspn(line, " ");
+ if (len != 3 || 0 != strncmp(line, "101", 3))
+ goto error;
+
+ /* reads the rest of the response until empty line */
+ clen = 0;
+ haserr = 0;
+ for(;;) {
+ rc = receive_line(fd, line, (int)sizeof(line));
+ if (rc < 0)
+ goto error;
+ if (rc == 0)
+ break;
+ len = strcspn(line, ": ");
+ if (len != 0 && line[len] == ':') {
+ /* checks the headers values */
+ it = line + len + 1;
+ it += strspn(it, " ,");
+ it[strcspn(it, " ,")] = 0;
+ if (isheader(line, len, "Sec-WebSocket-Accept")) {
+ if (strcmp(it, ack) != 0)
+ haserr = 1;
+ } else if (isheader(line, len, "Sec-WebSocket-Protocol")) {
+ result = 0;
+ while(protocols[result] != NULL && strcmp(it, protocols[result]) != 0)
+ result++;
+ } else if (isheader(line, len, "Upgrade")) {
+ if (strcmp(it, "websocket") != 0)
+ haserr = 1;
+ } else if (isheader(line, len, "Content-Length")) {
+ clen = atol(it);
+ }
+ }
+ }
+
+ /* skips the remaining of the message */
+ while (clen >= sizeof line) {
+ while (read(fd, line, sizeof line) < 0 && errno == EINTR);
+ clen -= sizeof line;
+ }
+ if (clen > 0) {
+ while (read(fd, line, len) < 0 && errno == EINTR);
+ }
+ if (haserr != 0)
+ result = -1;
+ else if (result < 0) {
+ result = 0;
+ while(protocols[result] != NULL)
+ result++;
+ }
+error:
+ return result;
+}
+
+static int negociate(int fd, const char **protocols, const char *path)
+{
+ const char *ack = send_request(fd, protocols, path);
+ return ack == NULL ? -1 : receive_response(fd, protocols, ack);
+}
+
+/* tiny parse a "standard" websock uri ws://host:port/path... */
+static int parse_uri(const char *uri, char **host, char **service, const char **path)
+{
+ const char *h, *p;
+ size_t hlen, plen;
+
+ /* the scheme */
+ if (strncmp(uri, "ws://", 5) == 0)
+ uri += 5;
+
+ /* the host */
+ h = uri;
+ hlen = strcspn(h, ":/");
+ if (hlen == 0)
+ goto invalid;
+ uri += hlen;
+
+ /* the port (optional) */
+ if (*uri == ':') {
+ p = ++uri;
+ plen = strcspn(p, "/");
+ if (plen == 0)
+ goto invalid;
+ uri += plen;
+ } else {
+ p = NULL;
+ plen = 0;
+ }
+
+ /* the path */
+ if (*uri != '/')
+ goto invalid;
+
+ /* make the result */
+ *host = strndup(h, hlen);
+ if (*host != NULL) {
+ return -1;
+ *service = plen ? strndup(h, hlen) : strdup("http");
+ if (*service != NULL) {
+ *path = uri;
+ return 0;
+ }
+ free(*host);
+ }
+ errno = ENOMEM;
+ goto error;
+invalid:
+ errno = EINVAL;
+error:
+ return -1;
+
+}
+
+
+
+
+static const char *proto_json1[2] = { "x-afb-ws-json1", NULL };
+
+struct afb_wsj1 *afb_ws_client_connect_wsj1(const char *uri, struct afb_wsj1_itf *itf, void *closure)
+{
+ int rc, fd;
+ char *host, *service;
+ const char *path;
+ struct addrinfo hint, *rai, *iai;
+ struct afb_wsj1 *result;
+
+ /* scan the uri */
+ rc = parse_uri(uri, &host, &service, &path);
+ if (rc < 0)
+ return NULL;
+
+ /* get addr */
+ memset(&hint, 0, sizeof hint);
+ hint.ai_family = AF_INET;
+ hint.ai_socktype = SOCK_STREAM;
+ rc = getaddrinfo(host, service, &hint, &rai);
+ free(host);
+ free(service);
+ if (rc != 0) {
+ errno = EINVAL;
+ return NULL;
+ }
+
+ /* get the socket */
+ result = NULL;
+ iai = rai;
+ while (iai != NULL) {
+ fd = socket(iai->ai_family, iai->ai_socktype, iai->ai_protocol);
+ if (fd >= 0) {
+ rc = connect(fd, iai->ai_addr, iai->ai_addrlen);
+ if (rc == 0) {
+ rc = negociate(fd, proto_json1, path);
+ if (rc == 0) {
+ result = afb_wsj1_create(fd, itf, closure);
+ if (result != NULL)
+ break;
+ }
+ }
+ close(fd);
+ }
+ iai = iai->ai_next;
+ }
+ freeaddrinfo(rai);
+ return result;
+}
+
+#if 0
+/* compute the queried path */
+static char *makequery(const char *path, const char *uuid, const char *token)
+{
+ char *result;
+ int rc;
+
+ while(*path == '/')
+ path++;
+ if (uuid == NULL) {
+ if (token == NULL)
+ rc = asprintf(&result, "/%s", path);
+ else
+ rc = asprintf(&result, "/%s?x-afb-token=%s", path, token);
+ } else {
+ if (token == NULL)
+ rc = asprintf(&result, "/%s?x-afb-uuid=%s", path, uuid);
+ else
+ rc = asprintf(&result, "/%s?x-afb-uuid=%s&x-afb-token=%s", path, uuid, token);
+ }
+ if (rc < 0) {
+ errno = ENOMEM;
+ return NULL;
+ }
+ return result;
+}
+#endif
+
+
--- /dev/null
+/*
+ * Copyright 2016 IoT.bzh
+ * Author: José Bollo <jose.bollo@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.
+ */
+
+#define _GNU_SOURCE
+
+#include <stdlib.h>
+#include <unistd.h>
+#include <assert.h>
+#include <errno.h>
+#include <string.h>
+#include <stdio.h>
+
+#include <json-c/json.h>
+
+#include "afb-ws.h"
+#include "afb-wsj1.h"
+
+#define CALL 2
+#define RETOK 3
+#define RETERR 4
+#define EVENT 5
+
+static void wsj1_on_hangup(struct afb_wsj1 *ws);
+static void wsj1_on_text(struct afb_wsj1 *ws, char *text, size_t size);
+
+static struct afb_ws_itf wsj1_itf = {
+ .on_hangup = (void*)wsj1_on_hangup,
+ .on_text = (void*)wsj1_on_text
+};
+
+struct wsj1_call
+{
+ struct wsj1_call *next;
+ void (*callback)(void *, struct afb_wsj1_msg *);
+ void *closure;
+ char id[16];
+};
+
+struct afb_wsj1_msg
+{
+ int refcount;
+ struct afb_wsj1 *wsj1;
+ struct afb_wsj1_msg *next, *previous;
+ char *text;
+ int code;
+ char *id;
+ char *api;
+ char *verb;
+ char *event;
+ char *object_s;
+ size_t object_s_length;
+ char *token;
+ struct json_object *object_j;
+};
+
+struct afb_wsj1
+{
+ int refcount;
+ int genid;
+ struct afb_wsj1_itf *itf;
+ void *closure;
+ struct json_tokener *tokener;
+ struct afb_ws *ws;
+ struct afb_wsj1_msg *messages;
+ struct wsj1_call *calls;
+};
+
+struct afb_wsj1 *afb_wsj1_create(int fd, struct afb_wsj1_itf *itf, void *closure)
+{
+ struct afb_wsj1 *result;
+
+ assert(fd >= 0);
+
+ result = calloc(1, sizeof * result);
+ if (result == NULL)
+ goto error;
+
+ result->refcount = 1;
+ result->itf = itf;
+ result->closure = closure;
+
+ result->tokener = json_tokener_new();
+ if (result->tokener == NULL)
+ goto error2;
+
+ result->ws = afb_ws_create(fd, &wsj1_itf, result);
+ if (result->ws == NULL)
+ goto error3;
+
+ return result;
+
+error3:
+ json_tokener_free(result->tokener);
+error2:
+ free(result);
+error:
+ close(fd);
+ return NULL;
+}
+
+void afb_wsj1_addref(struct afb_wsj1 *wsj1)
+{
+ if (wsj1 != NULL)
+ wsj1->refcount++;
+}
+
+void afb_wsj1_unref(struct afb_wsj1 *wsj1)
+{
+ if (wsj1 != NULL && !--wsj1->refcount) {
+ afb_ws_destroy(wsj1->ws);
+ json_tokener_free(wsj1->tokener);
+ free(wsj1);
+ }
+}
+
+static void wsj1_on_hangup(struct afb_wsj1 *ws)
+{
+ if (ws->itf->on_hangup != NULL)
+ ws->itf->on_hangup(ws->closure);
+}
+
+
+static struct wsj1_call *wsj1_call_search(struct afb_wsj1 *wsj1, const char *id, int remove)
+{
+ struct wsj1_call *r, **p;
+ p = &wsj1->calls;
+ while((r = *p) != NULL) {
+ if (strcmp(r->id, id) == 0) {
+ if (remove)
+ *p = r->next;
+ break;
+ }
+ p = &r->next;
+ }
+ return r;
+}
+
+static struct wsj1_call *wsj1_call_create(struct afb_wsj1 *wsj1, void (*on_reply)(void*,struct afb_wsj1_msg*), void *closure)
+{
+ struct wsj1_call *call = malloc(sizeof *call);
+ if (call == NULL)
+ errno = ENOMEM;
+ else {
+ do {
+ if (wsj1->genid == 0)
+ wsj1->genid = 999999;
+ sprintf(call->id, "%d", wsj1->genid--);
+ } while (wsj1_call_search(wsj1, call->id, 0) != NULL);
+ call->callback = on_reply;
+ call->closure = closure;
+ call->next = wsj1->calls;
+ wsj1->calls = call;
+ }
+ return call;
+}
+
+
+static int wsj1_msg_scan(char *text, size_t items[10][2])
+{
+ char *pos, *beg, *end, c;
+ int aux, n = 0;
+
+ /* scan */
+ pos = text;
+
+ /* scans: [ */
+ while(*pos == ' ') pos++;
+ if (*pos++ != '[') goto bad_scan;
+
+ /* scans list */
+ while(*pos == ' ') pos++;
+ if (*pos != ']') {
+ for (;;) {
+ if (n == 10)
+ goto bad_scan;
+ beg = pos;
+ aux = 0;
+ while (aux != 0 || (*pos != ',' && *pos != ']')) {
+ switch(*pos++) {
+ case '{': case '[': aux++; break;
+ case '}': case ']': if (aux--) break;
+ case 0: goto bad_scan;
+ case '"':
+ do {
+ switch(c = *pos++) {
+ case '\\': if (*pos++) break;
+ case 0: goto bad_scan;
+ }
+ } while(c != '"');
+ }
+ }
+ end = pos;
+ while (end > beg && end[-1] == ' ')
+ end--;
+ items[n][0] = beg - text; /* start offset */
+ items[n][1] = end - beg; /* length */
+ n++;
+ if (*pos == ']')
+ break;
+ while(*++pos == ' ');
+ }
+ }
+ while(*++pos == ' ');
+ if (*pos) goto bad_scan;
+ return n;
+
+bad_scan:
+ return -1;
+}
+
+static char *wsj1_msg_parse_extract(char *text, size_t offset, size_t size)
+{
+ text[offset + size] = 0;
+ return text + offset;
+}
+
+static char *wsj1_msg_parse_string(char *text, size_t offset, size_t size)
+{
+ if (size > 1 && text[offset] == '"') {
+ offset += 1;
+ size -= 2;
+ }
+ return wsj1_msg_parse_extract(text, offset, size);
+}
+
+static void wsj1_on_text(struct afb_wsj1 *wsj1, char *text, size_t size)
+{
+ size_t items[10][2];
+ int n;
+ struct afb_wsj1_msg *msg;
+ struct wsj1_call *call;
+
+ /* allocate */
+ msg = calloc(1, sizeof *msg);
+ if (msg == NULL)
+ goto alloc_error;
+
+ /* scan */
+ n = wsj1_msg_scan(text, items);
+ if (n < 0)
+ goto bad_header;
+
+ /* scans code: 2|3|4|5 */
+ if (items[0][1] != 1) goto bad_header;
+ switch (text[items[0][0]]) {
+ case '2': msg->code = CALL; break;
+ case '3': msg->code = RETOK; break;
+ case '4': msg->code = RETERR; break;
+ case '5': msg->code = EVENT; break;
+ default: goto bad_header;
+ }
+
+ /* fills the message */
+ switch (msg->code) {
+ case CALL:
+ if (n != 4 && n != 5) goto bad_header;
+ msg->id = wsj1_msg_parse_string(text, items[1][0], items[1][1]);
+ msg->api = wsj1_msg_parse_string(text, items[2][0], items[2][1]);
+ msg->verb = strchr(msg->api, '/');
+ if (msg->verb == NULL) goto bad_header;
+ *msg->verb++ = 0;
+ msg->object_s = wsj1_msg_parse_extract(text, items[3][0], items[3][1]);
+ msg->object_s_length = items[3][1];
+ msg->token = n == 5 ? wsj1_msg_parse_string(text, items[4][0], items[4][1]) : NULL;
+ break;
+ case RETOK:
+ case RETERR:
+ if (n != 3 && n != 4) goto bad_header;
+ msg->id = wsj1_msg_parse_string(text, items[1][0], items[1][1]);
+ call = wsj1_call_search(wsj1, msg->id, 1);
+ if (call == NULL) goto bad_header;
+ msg->object_s = wsj1_msg_parse_extract(text, items[2][0], items[2][1]);
+ msg->object_s_length = items[2][1];
+ msg->token = n == 5 ? wsj1_msg_parse_string(text, items[3][0], items[3][1]) : NULL;
+ break;
+ case EVENT:
+ if (n != 3) goto bad_header;
+ msg->event = wsj1_msg_parse_string(text, items[1][0], items[1][1]);
+ msg->object_s = wsj1_msg_parse_extract(text, items[2][0], items[2][1]);
+ msg->object_s_length = items[2][1];
+ break;
+ }
+ /* done */
+ msg->text = text;
+
+ /* fill and record the request */
+ msg->refcount = 1;
+ afb_wsj1_addref(wsj1);
+ msg->wsj1 = wsj1;
+ msg->next = wsj1->messages;
+ msg->next->previous = msg;
+ wsj1->messages = msg;
+
+ /* incoke the handler */
+ switch (msg->code) {
+ case CALL:
+ wsj1->itf->on_call(wsj1->closure, msg->api, msg->verb, msg);
+ break;
+ case RETOK:
+ case RETERR:
+ call->callback(call->closure, msg);
+ free(call);
+ break;
+ case EVENT:
+ wsj1->itf->on_event(wsj1->closure, msg->event, msg);
+ break;
+ }
+ afb_wsj1_msg_unref(msg);
+ return;
+
+bad_header:
+ free(msg);
+alloc_error:
+ free(text);
+ afb_ws_close(wsj1->ws, 1008, NULL);
+}
+
+void afb_wsj1_msg_addref(struct afb_wsj1_msg *msg)
+{
+ if (msg != NULL)
+ msg->refcount++;
+}
+
+void afb_wsj1_msg_unref(struct afb_wsj1_msg *msg)
+{
+ if (msg != NULL && --msg->refcount == 0) {
+ /* unlink the message */
+ if (msg->next != NULL)
+ msg->next->previous = msg->previous;
+ if (msg->previous == NULL)
+ msg->wsj1->messages = msg->next;
+ else
+ msg->previous->next = msg->next;
+ /* free ressources */
+ afb_wsj1_unref(msg->wsj1);
+ json_object_put(msg->object_j);
+ free(msg->text);
+ free(msg);
+ }
+}
+
+const char *afb_wsj1_msg_object_s(struct afb_wsj1_msg *msg)
+{
+ return msg->object_s;
+}
+
+struct json_object *afb_wsj1_msg_object_j(struct afb_wsj1_msg *msg)
+{
+ struct json_object *object = msg->object_j;
+ if (object == NULL) {
+ json_tokener_reset(msg->wsj1->tokener);
+ object = json_tokener_parse_ex(msg->wsj1->tokener, msg->object_s, (int)msg->object_s_length);
+ if (object == NULL) {
+ /* lazy error detection of json request. Is it to improve? */
+ object = json_object_new_string_len(msg->object_s, (int)msg->object_s_length);
+ }
+ msg->object_j = object;
+ }
+ return object;
+}
+
+int afb_wsj1_msg_is_call(struct afb_wsj1_msg *msg)
+{
+ return msg->code == CALL;
+}
+
+int afb_wsj1_msg_is_reply(struct afb_wsj1_msg *msg)
+{
+ return msg->code == RETOK || msg->code == RETERR;
+}
+
+int afb_wsj1_msg_is_reply_ok(struct afb_wsj1_msg *msg)
+{
+ return msg->code == RETOK;
+}
+
+int afb_wsj1_msg_is_reply_error(struct afb_wsj1_msg *msg)
+{
+ return msg->code == RETERR;
+}
+
+int afb_wsj1_msg_is_event(struct afb_wsj1_msg *msg)
+{
+ return msg->code == EVENT;
+}
+
+const char *afb_wsj1_msg_api(struct afb_wsj1_msg *msg)
+{
+ return msg->api;
+}
+
+const char *afb_wsj1_msg_verb(struct afb_wsj1_msg *msg)
+{
+ return msg->verb;
+}
+
+const char *afb_wsj1_msg_event(struct afb_wsj1_msg *msg)
+{
+ return msg->event;
+}
+
+const char *afb_wsj1_msg_token(struct afb_wsj1_msg *msg)
+{
+ return msg->token;
+}
+
+
+
+
+
+
+
+
+
+
+#if 0
+
+
+
+
+
+static void wsj1_emit(struct afb_wsj1 *wsj1, int code, const char *id, size_t idlen, struct json_object *data, const char *token)
+{
+ json_object *msg;
+ const char *txt;
+
+ /* pack the message */
+ msg = json_object_new_array();
+ json_object_array_add(msg, json_object_new_int(code));
+ json_object_array_add(msg, json_object_new_string_len(id, (int)idlen));
+ json_object_array_add(msg, data);
+ if (token)
+ json_object_array_add(msg, json_object_new_string(token));
+
+ /* emits the reply */
+ txt = json_object_to_json_string(msg);
+ afb_ws_text(wsj1->ws, txt, strlen(txt));
+ json_object_put(msg);
+}
+
+static void wsj1_msg_reply(struct afb_wsj1_msg *msg, int retcode, const char *status, const char *info, json_object *resp)
+{
+ const char *token = afb_context_sent_token(&msg->context);
+ wsj1_emit(msg->wsj1, retcode, msg->id, msg->idlen, afb_msg_json_reply(status, info, resp, token, NULL), token);
+}
+
+static void wsj1_msg_fail(struct afb_wsj1_msg *msg, const char *status, const char *info)
+{
+ wsj1_msg_reply(msg, RETERR, status, info, NULL);
+}
+
+static void wsj1_msg_success(struct afb_wsj1_msg *msg, json_object *obj, const char *info)
+{
+ wsj1_msg_reply(msg, RETOK, "success", info, obj);
+}
+
+static const char *wsj1_msg_raw(struct afb_wsj1_msg *msg, size_t *size)
+{
+ *size = msg->objlen;
+ return msg->obj;
+}
+
+static void wsj1_msg_send(struct afb_wsj1_msg *msg, const char *buffer, size_t size)
+{
+ afb_ws_text(msg->wsj1->ws, buffer, size);
+}
+
+static void wsj1_send_event(struct afb_wsj1 *wsj1, const char *event, struct json_object *object)
+{
+ wsj1_emit(wsj1, EVENT, event, strlen(event), afb_msg_json_event(event, object), NULL);
+}
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+#endif
+
+
+static int wsj1_send_isot(struct afb_wsj1 *wsj1, int i1, const char *s1, const char *o1, const char *t1)
+{
+ char code[2] = { (char)('0' + i1), 0 };
+ return afb_ws_texts(wsj1->ws, "[", code, ",\"", s1, "\",", o1, t1 != NULL ? ",\"" : "]", t1, "\"]", NULL);
+}
+
+static int wsj1_send_issot(struct afb_wsj1 *wsj1, int i1, const char *s1, const char *s2, const char *o1, const char *t1)
+{
+ char code[2] = { (char)('0' + i1), 0 };
+ return afb_ws_texts(wsj1->ws, "[", code, ",\"", s1, "\",\"", s2, "\",", o1, t1 != NULL ? ",\"" : "]", t1, "\"]", NULL);
+}
+
+int afb_wsj1_send_event_j(struct afb_wsj1 *wsj1, const char *event, struct json_object *object)
+{
+ return afb_wsj1_send_event_s(wsj1, event, json_object_to_json_string(object));
+}
+
+int afb_wsj1_send_event_s(struct afb_wsj1 *wsj1, const char *event, const char *object)
+{
+ return wsj1_send_isot(wsj1, EVENT, event, object, NULL);
+}
+
+int afb_wsj1_call_j(struct afb_wsj1 *wsj1, const char *api, const char *verb, struct json_object *object, void (*on_reply)(void *closure, struct afb_wsj1_msg *msg), void *closure)
+{
+ return afb_wsj1_call_s(wsj1, api, verb, json_object_to_json_string(object), on_reply, closure);
+}
+
+int afb_wsj1_call_s(struct afb_wsj1 *wsj1, const char *api, const char *verb, const char *object, void (*on_reply)(void *closure, struct afb_wsj1_msg *msg), void *closure)
+{
+ int rc;
+ struct wsj1_call *call;
+ char *tag;
+
+ /* allocates the call */
+ call = wsj1_call_create(wsj1, on_reply, closure);
+ if (call == NULL) {
+ errno = ENOMEM;
+ return -1;
+ }
+
+ /* makes the tag */
+ tag = alloca(2 + strlen(api) + strlen(verb));
+ stpcpy(stpcpy(stpcpy(tag, api), "/"), verb);
+
+ /* makes the call */
+ rc = wsj1_send_issot(wsj1, CALL, call->id, tag, object, NULL);
+ if (rc < 0) {
+ wsj1_call_search(wsj1, call->id, 1);
+ free(call);
+ }
+ return rc;
+}
+
+
+int afb_wsj1_reply_ok_j(struct afb_wsj1_msg *msg, struct json_object *object, const char *token)
+{
+ return afb_wsj1_reply_ok_s(msg, json_object_to_json_string(object), token);
+}
+
+int afb_wsj1_reply_ok_s(struct afb_wsj1_msg *msg, const char *object, const char *token)
+{
+ return wsj1_send_isot(msg->wsj1, RETOK, msg->id, object, token);
+}
+
+int afb_wsj1_reply_error_j(struct afb_wsj1_msg *msg, struct json_object *object, const char *token)
+{
+ return afb_wsj1_reply_error_s(msg, json_object_to_json_string(object), token);
+}
+
+int afb_wsj1_reply_error_s(struct afb_wsj1_msg *msg, const char *object, const char *token)
+{
+ return wsj1_send_isot(msg->wsj1, RETERR, msg->id, object, token);
+}
+
--- /dev/null
+/*
+ * Copyright 2016 IoT.bzh
+ * Author: José Bollo <jose.bollo@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.
+ */
+
+#pragma once
+
+struct afb_wsj1;
+struct afb_wsj1_msg;
+
+struct json_object;
+
+struct afb_wsj1_itf {
+ void (*on_hangup)(void *closure);
+ void (*on_call)(void *closure, const char *api, const char *verb, struct afb_wsj1_msg *msg);
+ void (*on_event)(void *closure, const char *event, struct afb_wsj1_msg *msg);
+};
+
+extern struct afb_wsj1 *afb_wsj1_create(int fd, struct afb_wsj1_itf *itf, void *closure);
+
+extern void afb_wsj1_addref(struct afb_wsj1 *wsj1);
+extern void afb_wsj1_unref(struct afb_wsj1 *wsj1);
+
+extern int afb_wsj1_send_event_s(struct afb_wsj1 *wsj1, const char *event, const char *object);
+extern int afb_wsj1_send_event_j(struct afb_wsj1 *wsj1, const char *event, struct json_object *object);
+
+extern int afb_wsj1_call_s(struct afb_wsj1 *wsj1, const char *api, const char *verb, const char *object, void (*on_reply)(void *closure, struct afb_wsj1_msg *msg), void *closure);
+extern int afb_wsj1_call_j(struct afb_wsj1 *wsj1, const char *api, const char *verb, struct json_object *object, void (*on_reply)(void *closure, struct afb_wsj1_msg *msg), void *closure);
+
+extern int afb_wsj1_reply_ok_s(struct afb_wsj1_msg *msg, const char *object, const char *token);
+extern int afb_wsj1_reply_ok_j(struct afb_wsj1_msg *msg, struct json_object *object, const char *token);
+
+extern int afb_wsj1_reply_error_s(struct afb_wsj1_msg *msg, const char *object, const char *token);
+extern int afb_wsj1_reply_error_j(struct afb_wsj1_msg *msg, struct json_object *object, const char *token);
+
+extern void afb_wsj1_msg_addref(struct afb_wsj1_msg *msg);
+extern void afb_wsj1_msg_unref(struct afb_wsj1_msg *msg);
+
+extern int afb_wsj1_msg_is_call(struct afb_wsj1_msg *msg);
+extern int afb_wsj1_msg_is_reply(struct afb_wsj1_msg *msg);
+extern int afb_wsj1_msg_is_reply_ok(struct afb_wsj1_msg *msg);
+extern int afb_wsj1_msg_is_reply_error(struct afb_wsj1_msg *msg);
+extern int afb_wsj1_msg_is_event(struct afb_wsj1_msg *msg);
+
+extern const char *afb_wsj1_msg_api(struct afb_wsj1_msg *msg);
+extern const char *afb_wsj1_msg_verb(struct afb_wsj1_msg *msg);
+extern const char *afb_wsj1_msg_event(struct afb_wsj1_msg *msg);
+extern const char *afb_wsj1_msg_token(struct afb_wsj1_msg *msg);
+
+extern const char *afb_wsj1_msg_object_s(struct afb_wsj1_msg *msg);
+extern struct json_object *afb_wsj1_msg_object_j(struct afb_wsj1_msg *msg);
+
Code Review / src / app-framework-binder.git / commitdiff